• 专利附录
  • 专利说明
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    • 专利摘要:
    Connecting collar (5) for sealingly connecting two conduits (2) comprising: - a first shell (8) and a second shell (9), each having a first end (8a, 9a) and a second end (8b, 9b), - a connection-conduit element (30, 31) in contact with one of the shells (8, 9) and comprising a first portion (30a, 31a) and a second portion (30b, 31b), electrically connected to the first portion (30b, 31b). The first shell (8) and / or the second shell (9) comprises a sleeve-connecting element (36, 37) comprising a contact tab (38, 39, 38a, 38b, 39a, 39b, 57, 58). extending in a space between the first ends (8a, 9a) and / or the second ends of the first shell (8) and the second shell (9), when the connecting collar (5) is in the closed position.
    公开号:FR3035950A1
    申请号:FR1553995
    申请日:2015-05-05
    公开日:2016-11-11
    发明作者:Patrick Bourbon；David Cosoleto；Nicolas Fraysse；Denis Sindezingue
    申请人:Zodiac Fluide Equipment SAS；
    IPC主号:
    专利说明:

    [0001] The invention relates to the field of duct connection devices, and more specifically the invention relates to a connection collar for a connection device comprising at least two shells, able to connect two ducts, each having a free end. , and intended in particular, but not limited to, to be used in aircraft for the transport of fluids. Such a connecting device generally comprises a two-part connection collar, also called shells or jaws or half-shells, all these terms designating the same elements. The hulls are articulated relative to each other by one or hinges. The connection device may also comprise a sheath sealingly snagging on the free ends of the ducts, also called ferrules, to create continuity in the transport of the fluid. Preferably, the connecting collar is closed on both rings and on the sleeve to hold it in position. A first function of the connection collar is to assemble the ducts and the fluidic continuity when the shells are locked to keep the connecting collar closed by means of a releasable system. A second function of the connection collar is to ensure electrical continuity. Indeed, for safety reasons, and particularly when the transported fluid is flammable, typically in the case of a fuel, it is important to ensure the dissipation and the passage of electrostatic charges or lightning to avoid the creation an electric arc. More precisely, the electric arc is created between elements that are not in electrical contact, and therefore at different electrical potentials. The passage through the electric arc of the fluid can cause its combustion. The dissipation of dynamic loads, such as those that can circulate after the lightning strikes the aircraft, must also be able to be dissipated quickly. The connecting devices of this type are designed to ensure a high electrical continuity between the two rings, the sleeve and the constituent members of the connection collar itself. EP 2 304 297 shows an example of such a connecting device.
    [0002] According to this example, the connecting device comprises a pair of metal hulls articulated around a hinge, coming to close liberally on the free end of two ducts, the ferrules, and on the sheath. Each shell has an inspection opening, allowing an operator to visually verify the presence of the sleeve when the collar is closed. Each shell further comprises a metallization wire, folded so as to be in contact with the ferrule of each conduit, to ensure electrical continuity between the two ferrules via each shell. The connecting device further comprises metal connecting members 5 for electrically connecting the sheath and the shells to put the sheath at the same potential as the shells. The connecting members are in the form of legs, comprising an outer portion for mounting on the corresponding shell, and a finger portion extending in the inspection hole of the corresponding shell to come into contact with the sleeve.
    [0003] Thus, electrical continuity is ensured: all the metal elements are electrically connected to each other. However, the solutions implemented in this connection device to ensure electrical continuity are not satisfactory from the point of view of space. In particular, the connecting members are mounted on the outside of the hulls at the hinge, so that the hinge must be dimensioned to allow this mounting and avoid interference with hinge parts. In addition, the portion of finger inserted into the inspection hole masks a portion of the sheath, while in principle the inspection hole is specifically intended to discover the sheath.
    [0004] In addition, the connecting member is in the form of an additional part of the connecting device, making the manufacture and assembly more complex, and therefore more expensive. As a result, there is a need for a conduit connection device overcoming the aforementioned drawbacks.
    [0005] Thus, a first object of the invention is to provide a connection collar for a conduit connection device providing electrical continuity. A second object of the invention is to provide a connection collar for a conduit connection device that does not pose interference problems with other parts of the connection collar.
    [0006] A third object of the invention is to provide a connection collar for a conduit connection device not masking the sleeve. A fourth object of the invention is to provide a connection collar for a conduit connection device whose manufacturing costs are reduced.
    [0007] According to a first aspect, the invention proposes a connection collar for sealingly connecting two ducts comprising: at least one first shell and at least one second shell, each having a first end and a second end; at least one connecting-conductor element in contact with at least one of the shells and comprising at least a first portion intended to be in electrical contact with one of the conduits when the connection collar is in the closed position and at least a second portion, electrically connected at the first portion and intended to be in electrical contact with the other of the conduits when the connecting collar 10 is in the closed position; in which the first shell and / or the second shell comprises at least one connecting element-sheath comprising at least one contact tab extending in at least one space formed between the first ends and / or the second ends of the first shell and the second shell, when the connecting collar is in the closed position. In various embodiments of the connection collar according to the invention, it is possible to make use of one and / or the other of the following additional provisions: the connection collar comprises at least one contact tab; extending into the space between the first ends of the first shell and the second shell and at least one contact tab extending into the space between the second ends of the first shell and the second shell; the connection-conduit element is in the form of a wire element in contact with an inner face of the first shell and / or the second shell and comprises at least one intermediate portion, electrically connecting the first portion and the second portion; - The connecting element-sheath is formed by the intermediate portion of the connection-conduit element, the intermediate portion being folded to form at least the contact lug; The connection-conduit element comprises two intermediate portions, each intermediate portion being folded to form at least one first tongue extending in the space between the first ends of the first shell and the second shell and at least one second tongue extending in the space between the second ends of the first shell and the second shell, when the connecting collar is in the closed position; the connecting collar comprises a hinge device comprising at least one axis on the first shell and at least one axis on the second shell, at least one connecting hinge connecting the axis of the first shell and the axis of the hinge; the second hull; - The connecting link hinge comprises the contact tab extending in the space between the first end of the first shell and the first end of the second shell; the articulation device comprises a first axis and a second axis on the first shell and a third axis and a fourth axis on the second shell; - The first shell and / or the second shell is provided with at least one inspection opening, completely cleared; at least one of the surfaces of the first shell and / or the second shell is electrically conductive; The connecting collar comprises a releasable locking device having a locked state, in which the connection collar is held in the closed position, and an unlocked state, in which the first shell and the second shell can pivot freely relative to one another; to the other ; the connecting collar further comprises a clasp articulated on the first shell or the second shell, the clasp comprising a fastening portion and at least one return lug, the clasp possibly assuming an initial open position, in which the portion attachment is at a distance from the first shell, respectively from the second shell or, a closed position, in which the attachment position is hooked on the second shell, respectively of the first shell, the clasp can not be in position 25 closed only when the locking device is in the locked state, and wherein the return lug cooperates elastically with the first shell or the second shell to exert a force on the clasp tending to bring it back to the initial open position; the clasp passes from the closed position to the open position, and vice versa, by rotation on the first shell or the second shell by an angle of a predetermined value; the locking device comprises at least a first hook articulated on the first shell or the second shell, the first hook having at least one spring blade cooperating with the first shell or the second shell and exerting a permanent stress on the first hook; tending to keep it in a fixed stable position; the locking device comprises at least a first hook articulated on the first shell, respectively the second shell, the first hook comprising at least one opening for rotation about a first axis of articulation, the opening defining a first center, the first hook further comprising at least one notch for snapping on at least the second shell, respectively the first shell; the notch has a bottom defining a second center, a first direction being defined as passing through the first center and the second center and a second direction being defined as being perpendicular to the first direction, the notch also having an edge; proximal in a third direction inclined relative to the second direction; the third direction is inclined with respect to the second direction by an angle of between 5 ° and 10 °, and preferably equal to 7 °; According to a second aspect, the invention proposes a connecting device for sealingly connecting two ducts, in addition to the connecting collar a sheath. According to a complementary feature according to the invention, the contact tab is preferably in electrical contact on the sleeve when the connecting collar 20 is in the closed position. According to a second aspect, the invention proposes a pipe intended to ensure the transport of a fluid, the pipe comprising at least two conduits and the connecting device for sealingly connecting the pipes. Of course, the various features, variations and / or embodiments of the present invention may be associated with each other in various combinations to the extent that they are not incompatible or exclusive of each other. The present invention will be better understood and other features and advantages will become apparent upon reading the following detailed description comprising embodiments given by way of illustration with reference to the appended figures, presented as non-limiting examples, which may serve to complete the understanding of the present invention and the disclosure of its realization and, if appropriate, contribute to its definition, in which: FIG. 1 is a three-dimensional view of three quarters of a connection device comprising a connection collar according to a first embodiment assembled between two ducts; Figure 2 is a three-quarter view of the connecting collar 5 of Figure 1 in a closed position; Figure 3 is a front view of the connecting collar of Figure 2; Figure 4 is a view similar to that of Figure 2, the connecting collar, in an open position; Figure 5 is a front view of the connecting collar of Figure 4; Fig. 6 is an exploded view, three quarter of a shell and a connection-lead member of the connecting collar of the first embodiment; Figure 7 is a sectional view of the connecting device according to the first embodiment, assembled between two ducts; FIG. 8 is a three-quarter view of a connecting collar 15 according to a second embodiment, in a closed position; Figure 9 is a view similar to that of Figure 8, of the connecting collar, in an open position; Fig. 10 is an exploded view, three quarter of a shell and a connection-lead member of the connecting collar of the second embodiment; Fig. 11 is a three-quarter view of a connecting collar according to a third embodiment, in a closed position; Figure 12 is a view similar to that of Figure 11 of the connecting collar, in an open position; Fig. 13 is a three quarter view of a sleeve connecting member of the connecting collar of the third embodiment; Fig. 14 is a sectional view of the connecting collar of the third embodiment, in a closed position; Figure 15 is a partial perspective view showing on an enlarged scale a locking device of a connecting collar according to the invention, the locking device being in an unlocked state; Figure 16 is a partial perspective view of a clasp of the connecting collar shown in Figure 15; Figure 17 is a partial perspective view of a hook of the connecting collar shown in Figure 15; Figure 18 is a front view of the hook shown in Figure 17; Figure 19 is a view similar to Figure 15, but without the clasp; Figure 20 is a partial rear view of the connection collar shown in Figure 15 without the clasp, the locking device being in a locked state. For the sake of clarity, only the elements useful for understanding the described embodiments have been shown and will be detailed. Figures 1 to 14 show a connecting device 1 for two ducts 10 2 of a pipe 3, comprising a connecting collar 5 and preferably a sleeve 4, according to three embodiments. The sheath 4 extends along an axis of elongation X, which is advantageously the axis of extension of the pipe 3 at least at the level of the connection of the two ducts 2. It should also be made clear, for the understanding of what It follows that the connecting collar 5 can assume a closed position about the elongation axis X, as will be explained later. In what follows, the adjective "inside" and its variants will designate what is turned towards or close to the axis of elongation X. On the contrary, the adjective "outside" and its variants will designate what is turned to the opposite or remote from the axis of elongation X. Furthermore, by convention, it should be mentioned, on the one hand, that the axial direction 20 will refer in the rest of the text to any direction coinciding with the axis d X elongation and, secondly, that the radial direction will refer to any direction from the axis of elongation X and belonging to a plane perpendicular to this axis of elongation X. Regarding the connecting collar 5, the The adjectives "inner" and "outer" and their variant, as well as references to the axial direction and the radial direction must be interpreted by considering the connecting collar 5 in the closed position. Figures 1 to 7 show a first embodiment of the connecting device 1 according to the invention for connecting two ducts 2 together. Each duct 2 has a free end portion 6 provided with a ferrule 7. The ferrule 7 may be, for example, expanded on the free end portion 6 of the corresponding conduit 2 or may be welded or formed on the portion free end 6 of the duct 2. In the embodiments described here, but in a non-limiting manner, the ducts 2 are of circular section.
    [0008] According to a particular embodiment, the sheath 4 is in the form of a substantially hollow cylindrical piece, of internal diameter adapted to come into contact with the shells 7 of the two ducts 2. The sheath 4 is made in electrically conductive material, for example metal.
    [0009] The connecting collar 5 comprises at least a first shell 8 and at least a second shell 9, substantially identical, semicircular shape complementary to each other and advantageously complementary to the shape of the sleeve 4, so that the first shell 8 and the second shell 9 may circumferentially cover the sheath 4.
    [0010] The first shell 8 extends between a first end 8a and a second end 8b. Similarly, the second shell 9 extends between a first end 9a and a second end 9b. The first shell 8 and the second shell 9 are hinged relative to each other by means of a hinge device 10, connecting the first ends 8a, 9a of the first shell 8 and the second shell 9 between them .
    [0011] In the examples presented hereinafter, the connecting collar 5 comprises, in a nonlimiting manner, two shells, respectively the first shell 8 and the second shell 9, which are then called first half-shell 8 and second half-shell 9. The articulation device 10 is, for example, of hinge type, about an axis 20 parallel to the axis of elongation X. According to an exemplary embodiment, the articulation device 10 comprises a first axis 11 and a second axis 12, parallel to the axis of elongation X, and preferably arranged in the extension of one another, which are inserted into openings of the first half-shell 8, near its first end 8a, on the outer surface of the first half-shell 8. In a symmetrical manner, the hinge device 10 comprises a third axis 13 and a fourth axis 14, parallel to the axis of elongation X, and preferably arranged in the pro one of the other, which are inserted into openings of the second half-shell 9, near its first end 9a, on the outer surface of the second half-shell 9.
    [0012] Advantageously, the first axis 11 is vis-à-vis the third axis 13, and a first connecting hinge 15, connecting rod, connect them. Similarly, the second axis 12 is vis-à-vis the fourth axis 14, and a second connecting hinge 16, connecting rod, connect them. The rotation of the first axis 11, the second axis 12, the third axis 13 3035950 9 and the fourth axis 14 in the openings of the half-shells 8, 9 may be authorized or not. The first half-shell 8 and the second half-shell 9 are thus movable relative to each other between two positions, by rotation about the first axis 11, the second axis 12, the third axis 13 and the fourth axis 14, namely: - a closed position of the connecting collar 5, in which the first half-shell 8 and the second half-shell 9 are aligned in continuity with one another about the axis of X, in particular, the second end 8b of the first half-shell 8 faces the second end 9b of the second half-shell 9, and the space between them is minimal, the connecting collar 5 can then circumferentially cover the sleeve 4, to hold the two conduits 2 together, and an open position of the connecting collar 5, in which the alignment of the first half-shell 8 and the second half-shell 9 is broken, the second end 8b of the first half 8 and the second end 9b of the second half-shell 9 being separated from one another by a space varying by actuating the articulation device 10. The articulation device 10 is such that the collar connection 5 can take an open position in which the space between the second end 8b of the first half-shell 8 and the second end 9b of the second half-shell 9 is sufficient to allow the sheath 4 to pass between them. use on the first half-shell 8, respectively the second half-shell 9, of two axes, respectively the first axis 11 and the second axis 12, on the one hand, the third axis 13 and the fourth axis 14, d ' on the other hand, to form the hinge device 10 makes it possible to increase the safety in the event of failure of one of the axes, namely the first axis 11, the second axis 12, the third axis 13 or the fourth axis 14, or the first link hinge 15 and / or the second connecting hinge 16. The connecting collar 5 further comprises a locking device 17, which has: - a locked state, in which the connecting collar 5 is held in the closed position, the articulation device 10 being blocked, so that the minimum space between the second end 8b of the first half-shell 8 and the second end 9b of the second half-shell 9 is maintained; An unlocked state in which the hinge device 10 is released, the first half-shell 8 and the second half-shell 9 being freely pivotable relative to each other to change the space between the first half -coquille 8 and the second end 9b of the second half-shell 9.
    [0013] The locking device 17 comprises, for example, at least a first hook 18, preferably a first hook 18 and a second hook 19 advantageously identical, fixed on the second half-shell 9 near its second end 9b. More specifically, the first hook 18, respectively the second hook 19, is articulated on the second half-shell 9 about the same axis 10 parallel to the axis of elongation X. For this purpose, the first hook 18 is hinged around a first articulation axis 20 inserted in an opening of the second half-shell 9 on the outer surface of the second half-shell 9 and the second hook 19 is articulated around a second hinge axis 21, parallel to the first hinge axis 20, advantageously in the extension of the first hinge axis 20, inserted into an opening of the second half-shell 9 on the outer surface of the second half-shell 9. The first half-shell 8 comprises a first retaining pin 22 and a second retaining pin 23, advantageously parallel to the axis of elongation X, and inserted into openings of the first half-shell 8, near its second end 8b, on the outer surface of the first half-shell 8. The first retaining pin 22 is vis-à-vis the first hinge axis 20, and the second retaining pin 23 is vis-à-vis the second axis 21. When the connecting collar 5 is in the closed position, by pivoting the first hook 18 around the first hinge pin 20, it snaps onto the first retaining pin 22; likewise, by pivoting the second hook 19 around the second hinge axis 21, it snaps onto the second retaining pin 23. The locking device 17 is then in the locked state. The necessary latching force is such that the locking device 17 can be manually locked. Optionally, the connecting collar 5 may furthermore comprise a clasp 24, in the form of a plastic molded part, articulated in rotation on the first articulation axis 20 and the second articulation axis 21. The clasp 24 comprises a fastening portion 25, favorably elastically deformable, which can be snapped by deformation on the first retaining pin 22 and the second retaining pin 23. Thus, 3035950 11 when the first hook 18, respectively the second hook 19, is snapped onto the first retaining pin 22, respectively the second retaining pin 23, the clasp 24 can cover it by latching in turn on the first retaining pin 22, respectively the second retaining pin 23. The clasp 24 provides an indication of the locked state, the first hook 18, respectively the second hook 19 preventing the clasp 24 from snapping onto the first retaining pin 22, respectively the second retaining pin 23 as long as the first hook 18, respectively the second hook 19, is not. By elastic deformation, the property of deforming under the action of a determined maximum stress and of returning to the initial form in the absence of stress is defined here. To pass the locking device 17 from the locked state to the unlocked state, an operator can lift, preferably manually but possibly using a tool, the clasp 24 and the first hook 18, respectively the second hook 19 For this purpose, the first hook 18, respectively the second hook 19, may comprise, at one end, a tongue 26, respectively a tongue 27, forming a gripping means. Similarly, the clasp 24 comprises, at one end, a handle 28 forming a gripping means. The tongues 26, 27 and the handle 28 thus make it easier to grip or with a tool the first hook 18, respectively the second hook 19, and 20 of the clasp 24 for their lifting. The connection collar 5 finally comprises electrical continuity means 29 to ensure electrical continuity between the two ducts. For this purpose, the first half-shell 8 comprises a first connection-conduit element 30 and the second half-shell 9 comprises a second connection-conduit element 31. The first connection-conduit element 30, respectively the second element Connector-conduit 31 is, for example, in the form of a wire element. The first half-shell 8, respectively the second half-shell 9, has, on its inner face, a first groove 32a, respectively a first groove 33a, and a second groove 32b, respectively a second groove 33b, extending circumferentially between the first end 8a and the second end 8b of the first half-shell 8 and the first end 9a and the second end 9b of the second half-shell 9.
    [0014] More specifically, on the first half-shell 8, the first groove 32a is formed between a first axial face 34a of the first half-shell 8 and a first lip 34'a, the second groove 32b being formed between a second face axial 34b and a second lip 34'b. Similarly, on the second half-shell 9, the first groove 33a is formed between a first axial face 35a of the second half-shell 9 and a first lip 35'a, the second groove 33b being formed between a second axial face 35b and a second lip 35'b. The first lead-through element 30, advantageously wire-shaped, is bent to extend both in the first groove 32a and in the second groove 32b of the first half-shell 8. Thus, the first connection element -conduit 30 comprises a first portion 30a, extending in the first groove 32a of the first half-shell 8, a second portion 30b, extending in the second groove 32b of the first half-shell 8 and an intermediate portion 30c providing continuity between the first portion 30a and the second portion 30b of the first conduit-connection element 30. The first conduit-connection element 30 is not in all its length in contact with the bottom of the first groove 32a and the second groove 32b. More specifically, preferably, the first lead-through member 30 is folded such that it includes segments in contact with the bottom of the first groove 32a and the second groove 32b, alternated with segments emerging out of the first groove 32a and the second groove 32b. Thus, when the connecting collar 5 is assembled on the sheath 4 and the ducts 2, the segments of the first portion 30a of the first connecting-duct element 30 emerging out of the first groove 32a of the first half-shell 8 come into contact with the ferrule 7 of one of the ducts 2 and the segments of the second portion 30b of the first connection-duct element 30 emerging from the second groove 32b of the first half-shell 8 come into contact with the ferrule 7 of the other of the ducts 2. The second duct-connection element 31 is substantially identical to the first duct-connection element 30 and is mounted identically on the second half-shell 9 comprising a first portion 31a, a second portion 31b and an intermediate portion 31c providing continuity between the first portion 31a and the second portion 31b of the second connection-conduit element 31.
    [0015] Thus, when the connecting collar 5 is assembled on the sheath 4 and the ducts 2, segments of a first portion 31a of the second connecting-duct element 31 emerging out of the first groove 33a of the second half-shell 9 come into contact with the ferrule 7 of one of the conduits and segments of the second portion 31b of the second connection-conduit element 31 emerging outside the second groove 33b of the second half-shell 9 come into contact with the ferrule The first conduit-connection element 30, respectively the second conduit-connection element 31, can be obtained from a single continuous wire, or from a plurality of connected portions. to each other, to ensure electrical continuity. According to the invention, when the connecting collar 5 is in the closed position, at least one space is formed between the first half-shell 8 and the second half-shell 9. Thus, a first space can be formed between the first end 8a of the first half-shell 8 and the first end 9a of the second half-shell 9, and / or a second space may be formed between the second end 8b of the first half-shell 8 and the second end 9b of the second half-shell 8 half-shell 9. The first space and / or the second space are used to pass at least one connecting element-sheath 36 for the first half-shell 8 and / or the second half-shell 9.
    [0016] According to the first embodiment, the first half-shell 8, respectively the second half-shell 9, comprises a sleeve-connecting element 36, respectively a sleeve-connecting element 37, formed by the first connection-conduit element. Corresponding, respectively the second connecting element-conduit 31 corresponding.
    [0017] More specifically, and as is particularly visible in FIG. 6 representing the first half-shell 8, the intermediate portion 30c of the first lead-through element 30 is folded to form a contact tab 38, advantageously extending radially towards the axis of elongation X, in particular along the first end 8a of the first half-shell 8, preferably without contact with the latter. Likewise, the intermediate portion 31c of the second ducted connection element 31 is folded to form a contact tab 39 extending radially towards the elongation axis X, in particular along the first end 9a of the second half -coquille 9, but without contact with the latter. The contact tab 38 and the contact tab 39 extend facing each other, but without contact, to avoid interference. In order to mount and to be held on the first half-shell 8, respectively the second half-shell 9, the first connection-conduit element 30, respectively the second conduit-connection element 31, comprises mounting portions. . For example, as shown more specifically in FIG. 6, the first half-shell 8 comprises, from its first end 8a, first lugs 40, in particular four in number, extending over a limited angular sector of the surface. outside, and advantageously parallel to each other. Each first lug 40 includes a bore 41 for insertion of the first axis 11 and the second axis 12 of the hinge device 10. On the side opposite the first end 8a, each first lug 40 comprises a notch 42 forming a housing for the intermediate portion 30c of the first lead-through member 30, while allowing the contact tab 38 to face the first end 8a of the first half-shell 8. Preferably, the intermediate portion 30c of the first connecting member- conduit 30 is placed in the notch 42 to be stuck, but a slight deflection around the axial direction of the intermediate portion 30c in its housing is permitted. In a symmetrical manner, the first half-shell 8 comprises, from its second end 8b, second ears 43, in particular four in number, extending over a limited angular sector of the outer surface, and advantageously parallel to each other. to others. Each second lug 43 includes a bore 44 for the insertion of the first retaining pin 22 and the second retaining pin 23 of the locking device 17. Each second lug 43 further comprises a hole 45 for inserting the free terminal ends of the first connection-conductor element 30.
    [0018] Thus, the first portion 30a and the second portion 30b of the first lead-through member 30 each emerge from the first groove 32a of the second groove 32b of the first half-shell 8 at its second end 8b and are folded over. outwardly of the first half-shell 8 to be inserted into the holes 45.
    [0019] It is the same for the second half-shell 9 and the second connecting-conduit element 31. Thus, preferably, the first half-shell 8 and the second half-shell 9 are substantially identical, facilitating the manufacture of parts, their storage and assembly.
    [0020] Thus, the first lead-through member 30 has first return segments 46, 48, extending along the first axial face 34a and the second axial face 34b of the first half-shell 8. Further the second conduit member 31 has second return segments 47, 49, extending along the first axial face 35a and the second axial face 35b of the second half-shell 9. The first segments of return 46 of the first conduit-connection element 30 face, but without contact, to the first return segments 47 of the second conduit-connection element 31. Likewise, the second return segments 48 of the first connection-conduit element 30 face, but without contact, the second return segments 49 of the second lead-connection element 31. A minimum distance between the first return segments 46, respectively the first return segments 48, of the first element The second and second return segments 47 and second return segments 49 of the second connection-conductor 31 are provided. According to a particular embodiment, each ferrule 7 comprises a shoulder 50 forming an increase in diameter towards the terminal end. On the shoulder 50, each shell 7 comprises a groove 51 extending on its circumference, and forming a housing for a seal 52, for example ring.
    [0021] The connection of the connecting device 1 on the two ducts 2 is as follows. The sleeve 4 is inserted on the end end of the ferrule 7 of a first conduit 2, so that the sleeve 4 covers with circumferential contact the ferrule 7, and more precisely covers the corresponding groove 51 and seal 52. The end end of the ferrule 7 of the second conduit 2 is inserted into the sleeve 4, so that the sleeve 4 is in circumferential contact with the ferrule 7 of the second conduit 2 and covers the corresponding groove 51 and seal 52. The contact between the seals 52 and the sleeve 4 ensures a good seal of the connection. The connecting collar 5 in the open position is brought around the sleeve 4. The first half-shell 8 and the second half-shell 9 are articulated around the hinge device 10 to put the connection collar 5 in the closed position around the sleeve 4, the first lip 34'a of the first half-shell 8 and the first lip 35'a of the second half-shell 9 which can bear against the shoulder 50 of the ferrule 7 of the first conduit 2 and the second lip 34'b of the first half-shell 8 and the second lip 35'b of the second half-shell 9 being able to bear against the shoulder 50 of the shell 7 of the second duct 2. Thus, the first portion 30a of the first conduit-connection element 30 and the first portion 31a of the second conduit-connection element 31 are in contact with the ferrule 7 of the first conduit 2 and the second portion 30b of the first conduit-connection element 30 and the second portion 31b of the second conduit-conduit member 31 are in contact with the ferrule 7 of the second conduit 2. The contact tabs 38, 39 are in contact with the sleeve 4. The contact closes 10 between the contact tabs 38, 39 and the sheath 4 is provided by exerting on the contact tabs 38, 39 a bearing force by the sheath 4. The risk of fracture of the first connection-conduit element 30 and the second connection-conduit element 31 by this support are decreases due in particular to the slight clearance allowed for the intermediate portions 30c and 31c in their housing and to the elasticity of the first connection-conduit element 30 and the second wire-shaped connection-conduit element 31. The two ducts 2 are thus held together, ensuring the fluidic continuity between them. Each metal piece being in contact with the others, the problems of continuity are almost null. Indeed, the current can flow from one conduit 2 to the other via the first conduit-connection element 30 and the second connection-conduit element 31, the contact tabs 38, 39, the sleeve 4 and the connecting collar 5. No additional parts have been added, the connecting elements-sheath 36, 37 being merged with the first connection-conduit element 30 and the second connection-conduit element 31. In addition, the first half-shell 8, respectively the second half-shell 9, may comprise at least one inspection hole 53, in particular two inspection holes 53, 54, allowing an operator to have visibility on the sleeve 4 when the connecting collar 5 is in the closed position, this visibility not being impeded, because the first conduit-connection element 30 and the second conduit-connection element 31 are away from the inspection holes 53, 54.
    [0022] A second embodiment will now be described with reference to Figs. 8 to 10. The second embodiment differs from the first embodiment in the form of the first lead-conduit member 30 and the second lead-lead member 31. and sleeve connecting members 36, 37. Therefore, elements identical to the first embodiment will not be described again for the second embodiment, and are designated in FIGS. 8 to 10 by the same references. . As in the first embodiment, the first conduit-connection element 30 and the second conduit-connection element 31 are in the form of a wire element, and the bushing-connection elements 36, 37 are merged with the first conduit-connection element 30 and the second conduit-connection element 31. More specifically, the first conduit-connection element 30 and the second conduit-connection element 31 of the second embodiment are in a wire-like form, and are each obtained for example by folding on itself a wire. As in the first embodiment, the first conduit-connection element 30, respectively the second conduit-connection element 31, comprises a first portion 30a, respectively a first portion 31a, intended to be in contact with the ferrule 7d. a first duct 2, and a second portion 30b, respectively a second portion 31b, intended to be in contact with the shell 7 of a second duct 2. The first ducted connection element 30, respectively the second connection element- conduit 31, further comprises two intermediate portions 30c, 30d, respectively two intermediate portions 31c, 31d, connecting the first portion 30a of the first lead-connection element 30 and the second portion 30b of the first lead-connection element 30 first portion 31a of the second connection-conduit element 31, respectively connecting the first portion 31a of the second connection-conduit element 31 and the uxth portion 31b of the second conduit-conduit member 31. As in the first embodiment, the first portion 30a of the first conduit-connection element 30 and the first portion 31a of the second conduit-conduit element 31 are housed respectively in first grooves 32a, 33a on the inner face of the first half-shell 8 and the corresponding second half-shell 9, and the second portion 30b of the first conduit-connection element 30 and the second portion 31b of the second conduit-conduit member 31 are respectively housed in second grooves 32b, 33b on the inner face of the first half-shell 8 and the corresponding second half-shell 9.
    [0023] Each first portion 30a, 31a and each second portion 30b, 31b comprise segments emerging from the first grooves 32a, 33a and second grooves 32b, 33b intended to come into contact with the ferrules 7 of the conduits 2. These segments are fixed, for example by crimping the first lips 34'a, 35'a and 5 of the second lips 34'b, 35'b at the segments in contact with the bottom of the first grooves 32a, 32b and second grooves 33a, 33b housing them. The sleeve connecting elements 36, 37 are formed by folding the intermediate portions 30c, 30d of the first conduit-connection element 30 and the intermediate portions 31c, 31d of the second conduit-connection element 31. More precisely, as illustrated in FIG. FIG. 10, a first intermediate portion 30c of the first connection-conduit element 30 is folded to form a first tongue 38a, preferably extending radially towards the elongation axis X, and a second intermediate portion 30d of the first element of Connection-conduit 30 is folded to form a second tongue 38b, preferably extending also radially towards the axis of elongation X. It is the same for the second half-shell 9 and the second connection-conduit member 31 , i.e., a first intermediate portion 31c of the second conduit member 31 is folded to form a third tab 39a, extending t preferably radially towards the elongation axis X, and the second intermediate portion 31d of the second connection-conduit element 31 is folded to form a fourth tongue 39b, preferably extending also radially towards the elongation axis X The first tongue 38a extends facing the first end 8a of the first half-shell 8, advantageously at a distance from the latter, and the second tongue 38b extends facing the second end 8b of the first half-shell 8, advantageously at a distance from the latter. The third tongue 39a extends facing the first end 9a of the second half-shell 9, advantageously at a distance from the latter, and the fourth tongue 39b extends facing the second end 9b of the second half -coquille 9, advantageously at a distance from the latter.
    [0024] When the connecting collar 5 is in the closed position, the first tongue 38a and the third tongue 39a extend in the first space, between the first end 8a of the first half-shell 8 and the first end 9a of the second half -coquille 9, without contact with each other. The second tab 38b and the third tongue 30b 39b extend in the second space, between the second end 8b of the first half-shell 8 and the second end 9b of the second half-shell 9, without contact with each other. the other. According to the second embodiment, the radial extension of the first tongue 38a, the second tongue 38b, the third tongue 39a and the fourth tongue 39b is such that during assembly of the connecting device 1 on the two ducts 2, they come into contact on the sleeve 4. According to the second embodiment, the first connection-conduit element 30 and the second connection-conduit element 31 are completely localized on the inner face of the first half shell 8 and the second half-shell 9, so that they do not have a return portion as in the first embodiment. The risks of interference between the first connection-conductor element 30 and the second connection-conductor element 31 are therefore reduced. A third embodiment will now be described with reference to Figs. 11 to 14. The third embodiment differs from the first embodiment and the second embodiment in that the sleeve connecting members 36, 37 are not confused with the first lead-connection element 30 and the second lead-connection element 31. Therefore, elements identical to the first embodiment will not be described again for the third embodiment, and are designated on Figures 11 to 14 by the same references. Thus, unlike the first embodiment and the second embodiment, the first connection-conduit element 30 and the second connection-conduit element 31 do not comprise contact tabs 38, 39 nor tab. More specifically, the first connection-conduit element 30, respectively the second conduit-conduit element 31, is in the form of a wire element, formed of two metal wires, the two ends of which are joined by means of tubes . For example, as shown in FIG. 11, the two wires of the first connection-conduit element 30 are joined at their ends by crimping in two tubes 30'a, 30'b. The two wires of the second conduit-conduit member 31 are similarly joined at their ends by crimping into two other tubes. The four tubes are each held on the outside of the first half-shell 8 and the second half-shell 9 by inserting them into axial bores.
    [0025] Other exemplary embodiments of the first conduit-connection element 30 and the second conduit-connection element 31 are conceivable. For example, the first conduit-connection element 30, respectively the second conduit-conduit element 31, may be a single wire folded and held on the first half-shell 8, respectively the second half-shell 9, correspondingly similar to the examples given in the first embodiment and the second embodiment. According to the third embodiment, two sleeve-connecting elements 36, 37 are formed on the first connecting hinge 15 and the second connecting hinge 16 10 of the first axis 11, the second axis 12, the third axis 13 and the fourth axis 14 of the articulation device 10. More specifically, the first connecting hinge 15 forms a first connecting element-sheath 36 and the second connecting hinge 16 forms a second connection element-sheath 37. It is shown in FIG. The first connecting hinge 15 comprises a mounting portion, provided with two first openings 55 for insertion of the first axis 11 of the hinge device 10 and two second openings 56 for the insertion of the third axis 13 of the articulation device 10. The first connecting hinge 15 further comprises a contact tab 57, extending advantageously radially towards the Preferably, the contact tab 57 is closer to the second openings 56 than to the first openings 55. Similarly, the second connecting hinge 16 also comprises a contact tab 58, extending advantageously radially towards the axis of elongation X. Preferably, the contact tab 58 is closer to openings on the second connecting hinge 16 intended for insertion of the second axis 12 than openings intended for the insertion of the fourth axis 14 of the articulation device 10. According to the third embodiment, the first axis 11, the second axis 12, the third axis 13 and the fourth axis 14 of the articulation device 10 can be mounted tightly in the openings of the first connecting hinge 15 and / or second connecting hinge 16. However, preferably and as will be explained later, to limit the risk of galvanic corrosion 1, the first axis 11, the second axis 12, the third axis 13 and the fourth axis 14 of the articulation device 10 are crimped in their center after mounting to prevent them from leaving the openings of the first connecting hinge 15 and / or the second connecting hinge 16. Thus, when the connecting device 1 is in the closed position, the contact tabs 57, 58 extend in the first space between the first end 8a of the first half-shell 8 and the first end 9a of the second half-shell 9, without contact with each other. According to the third embodiment, in order to reduce the risks of interference between the first connection-conduit element 30 and the second connection-conduit element 31, the first return segments 46, 48 of the first connection-conduct element 30 are at a greater distance from the second return segments 47, 49 of the second conduit member 31 than the first embodiment. For this purpose, the first groove 32a and the second groove 32b of the first half-shell 8 do not extend to the first end 8a and the second end 8b of the first half-shell 8. Similarly, the first grooves 33a and the second groove 33b of the second half-shell 9 do not extend to the first end 9a and the second end 9b of the second half-shell 9. When the connecting collar 5 is assembled in position closed on the sleeve 4 and the two ducts 2, the contact tabs 57, 58 bear on the sleeve 4. The contact tabs 57, 58 may be slightly flexible, that is to say that they can deform without breaking under the bearing force exerted by the sleeve 4, and resume their initial position in the absence of support on the sleeve 4. The connecting device 1 thus described uses the components already present in the connecting collar 5, namely it the first duct connection element 30 and the second duct connection element 31, ie the first connecting hinge 25 and the second connecting hinge 16 of the hinge device 10, to form sheath connection elements 36 , 37, so that there is no additional room. The manufacturing costs of the connecting device 1 are therefore reduced compared to the solutions of the state of the art setting up an additional piece to obtain an electrical connection on the sleeve 4.
    [0026] In addition, the sleeve connecting elements 36, 37 extend in the first space between the first ends 8a, 9a and / or in the second space between the second ends 8b, 9b of the first half-shell 8 and the second half shell 30 9 so that the size of the connecting device 1 is not increased. For each embodiment, an exemplary embodiment of the first connection-conductor element 30 and the second connection-conductor element 31 have been given. These examples are in no way limiting. Thus, each of these examples for one embodiment may be adapted for another embodiment. Any variant of these examples may also be adapted to each of the embodiments. In order to ensure electrical continuity while protecting against corrosion, the surface of the first half-shell 8 and / or the second half-shell 9 is treated in such a way that: the bottom of the first grooves 32a, 33a and second grooves 32b, 33b, in which part of the first conduit-connection element 30 and / or the second conduit-conduit element 31 are coated with a layer protecting against galvanic corrosion and ensuring electrical continuity with the first conduit-connection element 30 and / or the second conduit-connection element 31; the holes 41, 44 into which are inserted the first axis 11, the second axis 12, the third axis 13 and the fourth axis 14 of the articulation device 10 and the first axis of articulation 20, the second axis of articulation 21, the first retaining pin 22 and the second retaining pin 23 of the locking device 17 are coated with a layer protecting against galvanic corrosion and ensuring electrical continuity with the first axis 11, the second axis 12, the third axis 13 and the fourth axis 14, the first hinge axis 20, the second hinge axis 21, the first retaining pin 22 and the second retaining pin 23; the other surfaces of the first half-shell 8 and / or the second half-shell 9 are coated with a layer protecting them from galvanic corrosion, but rendering them electrically neutral. In addition, the first axis 11, the second axis 12, the third axis 13 and the fourth axis 14 of the articulation device 10 and the first axis of articulation 20, the second axis of articulation 21, the first axis of retention 22 and the second retaining pin 23 of the locking device 17 are preferably mounted with clearance in the corresponding bores of the first half-shell 8 and / or the second half-shell 9, in order to avoid the loss of the coating. protection. The first axis 11, the second axis 12, the third axis 13 and the fourth axis 14 of the articulation device 10 and the first articulation axis 20, the second articulation axis 21, the first retaining axis 22 and the second retaining pin 23 of the locking device 17 are then advantageously crimped at their center to prevent them from coming out of the bores. It will now be described, in connection with FIGS. 15 to 20, a particular embodiment of the locking device 17, adaptable to any type of connection collar 5, providing enhanced security. As previously described, the locking device 17 comprises the first hook 18, preferably the first hook 18 and the second hook 19 and the first hinge axis 20, preferably the first hinge axis 20 and the second hinge axis 20. 21, the first retaining pin 22, preferably the first retaining pin 22 and the second retaining pin 23. In order to prevent the clasp 24 from closing by snapping its attachment portion 25 onto the first retaining pin 22 and the second retaining pin 23 while the first hook 18 and the second hook 19 are not engaged on the first retaining pin 22 and the second retaining pin 23, the clasp 24 comprises at least one retaining tab 59 , preferably two return lugs 59, intended to cooperate with the second ears 43 of the second half-shell 9. In fact, the second lugs 43 form radial projections on the outer surface the second half-shell 9, extending angularly from its second end 9b. The return tabs 59 of the clasp 24 are such that when the clasp 24 is mounted on the first hinge axis 20 and the second hinge axis 21, each return lug 59 is in contact with one of the second lugs 43. this effect, the return tabs 59 have an inclined surface 60 forming a ramp and a terminal end 60a, preferably rounded.
    [0027] The clasp 24 can take, in the absence of external action, only two positions: an initial open position, in which the attachment portion 25 of the clasp 24 is not snapped onto the first retaining pin 22 and the second retaining pin 23, - a closed position, in which the fastening portion 25 of the clasp 24 is snapped onto the first retaining pin 22 and the second retaining pin 23.
    [0028] The return tabs 59 act as a spring and urge the clasp 24 to the open position. The clasp 24 can move from the initial open position to the closed position only by an external action, for example an operator, pivoting the clasp 24 on the first hinge axis 20 and the second hinge axis 3035950 24 21, against the biasing of the return legs 59. As long as the clasp 24 is not held in the closed position by snapping on the first retaining pin 22 and the second retaining pin 23, and in the absence of external action, the return legs 59 return the clasp 24 in the initial open position.
    [0029] More specifically, the contact between the inclined surface 60 of the return legs 59 and the second ears 43 holds the clasp 24 in the open position. The shape of the inclined surface 60 causes the force exerted on the clasp 24 to rotate it towards its closure increases as the rotation. Thus, in order to be able to bring the attachment portion onto the first retaining pin 22 and the second retaining pin 23 by pivoting the clasp 24 on the first hinge axis 20 and the second hinge axis 21, the operator must exert a force on the clasp 24 to overcome the resistance generated by the contact between the return legs 59 and the second ears 43, until the end end 60a is in forced contact with the second ears 43, and that the attachment portion 25 snaps onto the first retaining pin 22 and the second retaining pin 23. Elastic deformation of the clasp 24 under the action of the operator may facilitate closure. If the snap on the first retaining pin 22 and the second retaining pin 23 does not occur, when the operator releases the clasp 24, the clasp 24 automatically returns to the initial open position under the action of the return tabs 59 .
    [0030] However, the operator can exert this effort only if the first hook 18 and the second hook 19 have been previously closed, by snapping onto the first retaining pin 22 and the second retaining pin 23, that is, say when the locking device 17 is locked. In the closed position of the clasp 24, the end ends 60a of the return tabs 59 remain in contact with the second lugs 43, so that when the clasp 24 is no longer snapped onto the first retaining pin 22 and the second pin 23, the stress exerted by the contact between the end ends 60a and the second ears 43 is released, and brings the clasp 24 in its initial open position. The clasp 24 thus provides a flag function by the elastic return of the return tabs 59: it indicates that the first hook 18 and the second hook 19 are correctly latched or not. As soon as at least the first hook 18 and / or the second hook 19 is not latched, the return tabs 59 ensure the automatic return of the clasp 24 in the initial open position. The return tabs 59 are, in addition, designed such that, in order for the clasp 24 to move from the closed position to the initial open position, and vice versa, the clasp 24 must be rotated by an angle of one predetermined value such that the operator can not visually confuse the closed position with the initial open position.
    [0031] Preferably, the clasp 24 and the return lugs 59 are monoblock, and are obtained for example by molding a plastic material. An embodiment of the first hook 18, respectively of the second hook 19, of the locking device 17 will now be described, the first hook 18 and the second hook 19 being preferably identical.
    [0032] The first hook 18, respectively the second hook 19, is in the form of a single piece, in particular of U-shaped cross-section over at least a portion of its length, so as to have an upper wall 61 and two walls. 62. The tongue 26, respectively the tongue 27, of the first hook 18, respectively of the second hook 19, described above, extends at a first end from the upper wall 61, in the opposite direction to that in which extend the side walls 62. The upper wall 61 does not extend over the entire length of the first hook 18, respectively of the second hook 19, leaving a zone extending to the second end of the first hook 18, respectively the second hook 19, wherein the side walls 62 are not connected to each other, so as to each have an upper edge 63 and a lower edge 64 li preferably substantially parallel. At the second end, opposite the tongue 26, respectively the tongue 27, the lower edge 64 of the side walls 62 is advantageously rounded so as to form a stop 65. The side wall 62 further has a notch 66, open The notch 66 is defined by its contour having a bottom 67, in particular rounded, advantageously of diameter substantially equal to that of the first hinge axis 20, and a first edge 68, said proximal edge 68. , and a second edge 69, said distal edge 69, with reference to the first end of the first hook 18, respectively of the second hook 19. The first edge 68 and the second edge 69 of the notch 66 move away from The other from the bottom 67. The gap between the first edge 68 and the second edge 69 is always greater than the diameter of the first hinge axis 20. Advantageously, the bottom 67 of the notch 66 on the side wall 62 is sensib coaxially with the bottom 67 of the notch 66 on the other side wall 62.
    [0033] The first hook 18, respectively the second hook 19, may further comprise a spring blade 70, preferably formed in the material of the first hook 18 or the second hook 19, for example by cutting and folding a band metallic. The leaf spring 70 is therefore not an additional piece, but is 5 integral with the first hook 18, respectively the second hook 19. The leaf spring 70 comprises a first end 71 connected to the top wall 61 and extends to at a second end 72, said free end 72, in the direction of the second end of the first hook 18, respectively of the second hook 19, and towards the lower edge 64 of the side walls 62. Specifically, the second end 72 forms a zone d support 73, in particular rounded. The leaf spring 70 is elastically deformable by bending at its first end 71, for example. In the rest position, that is to say in the absence of any constraint, at least a portion, here in this case the bearing zone 73, of the leaf spring 70 extends beyond the edge lower 64 of the side walls 62.
    [0034] Finally, the sidewalls 62 each include an aperture 74, preferably circular. The two openings 74 are substantially coaxial, so as to insert an axis of rotation, in this case the first hinge axis 20, respectively the second hinge axis 21, with just enough clearance to allow rotation of the first hook 18, respectively of the second hook 19, on the first hinge axis 20, respectively the second hinge axis 21. The leaf spring 70 makes it possible to constrain the first hook 18, respectively the second hook 19, in a unique stable position determined. More precisely, when the first hook 18, respectively the second hook 19, is mounted on the first hinge axis 20, respectively the second hinge pin 21, the bearing zone 25 of the spring blade 70 bears on the outer surface of the second half-shell 9, for example between two second ears 43. To move the first hook 18, respectively the second hook 19, from its stable position, the operator must exert a force against the force exerted by the leaf spring 70, so as to obtain the rotation of the first hook 18, respectively the second hook 19, around the first axis of articulation 20, respectively the second axis of articulation 21. This effort tends to deform the blade spring 70, in particular by bending at the first end 71, gradually increasing the force provided by the spring blade 70. Before the spring blade 70 reaches its breaking point, the stop 65 303 5950 27 on the side walls 62 comes into contact with the outer surface of the second half-shell 9, preventing the operator from continuing the movement. The spring blade 70 also acts as a stop for the hook 18, 19 in a stable position, that is to say that, in the absence of additional stress, the first hook 18, respectively the second hook 19, is naturally in its position. stable position. For this purpose, it is considered the first hook 18 articulated on the first hinge axis 20 to snap onto the first retaining pin 22, it being understood that the second hook 19, articulated on the second hinge axis 21 to snap on the second retaining pin 23 operates in the same way.
    [0035] The spring blade 70 facilitates snap-fastening of the first hook 18 on the first retaining pin 22 by limiting the manipulations of the first hook 18: the spring blade 70 prevents the first hook 18 from exceeding its stable position, which would cause the notches 66 under the first retaining pin 22. To snap the first hook 18 onto the first retaining pin 22 and lock the locking device 17, the operator must therefore close the first shell 8 and the second shell 9. the effect of the leaf spring 70, the notches 66 are automatically put in position on the first retaining pin 22 by sliding on the latter. Preferably, the stable position does not quite correspond to the latching position on the first retaining pin 22, so that the spring blade 70 exerts a stress on the first hinge axis 20 if the latching has location. If the latching has not occurred, the first hook 18 is placed in its stable position without passing under the first retaining pin 22, which could jam the locking device 17. In addition, the first edge 68 and the second edge 69 of the notch 66 is specially designed to facilitate the positioning of the first hook 18 on the first retaining pin 22. For this purpose, when the first hook 18 and the second hook 19 are viewed in a plane parallel to the side walls 62, a first direction L1 is defined as passing through a center M of the openings 74 and by a center N of the notches 66.
    [0036] More specifically, the center N of the notches 66 corresponds to the center of a circle C, shown in broken lines in FIG. 18, passing through the bottom 67 of the notches 66. In other words, in the locked position of the locking device 17, the center M of the apertures 74 corresponds substantially to the center of the first articulation axis 20 and the second articulation axis 21 and the center N corresponds substantially to the center of the first retaining axis 22 and the second retaining axis 23 The first direction L1 crosses the distal edge 68 at a point P, said point of tangency P. It is then defined a second direction L2, perpendicular to the first direction L1, 5 and a third direction T, tangent to the circle C at the point tangent P. The tangent T forms with the second direction L2 an angle a, a value between 5 and 10 °, and preferably equal to 7 °. The proximal edge 68 of the notches 66 follows the tangent T from the point of tangency P to a point of contact Q on the side wall 62.
    [0037] The value of the angle thus has the advantage of forcing the closure of the first hook 18, respectively the second hook 19, causing a tensile force, while not hindering the closure. For explanatory purposes, it is again considered the first hook 18, it being understood that again, the second hook 19 operates identically. Thus, when the first hook 18 is pivoted about the first hinge axis 20 to hook onto the first retaining pin 22, the contact point Q of the notches 66 comes into contact with the first retaining pin 22, and, because of the angle α, a force must be exerted on the first articulation axis 20 and / or on the first retaining axis 22 to bring them together, so that the first retaining axis 22 exceeds the contact Q and 20 reaches the bottom 67 of the notches 66, ensuring the latching of the first hook 18 on the first retaining pin 22 and the locking of the locking device 17. The inclination of the proximal edge 68 also ensures that the first retaining pin 22 remains in the notch 66, since additional effort must be exerted to bring the first hinge axis 20 of the first retaining pin 22, so that the first retaining pin 22 protrudes from the contact point Q and comes out of the notch 66. The first hook 18 and the second hook 19 thus formed in one piece then ensure a snug fit, and prevent the device locking 17 to get stuck. Locking security by the locking device 17 is then increased.
    [0038] Of course, the invention is not limited to the embodiments described above and provided solely by way of example. It encompasses various modifications, alternative forms and other variants that may be considered by those skilled in the art within the scope of the present invention and in particular any combinations of the various modes of operation described above, which can be taken separately or in combination.
    权利要求:
    Claims (20)
    [0001]
    REVENDICATIONS1. Connecting collar (5) for sealingly connecting two conduits (2) comprising: - at least one first shell (8) and at least one second shell (9), each having a first end (8a, 9a) and a second end (8b, 9b), - at least one connection-conduit element (30, 31) in contact with at least one of the shells (8, 9) and comprising at least a first portion (30a, 31a) intended to be in electrical contact with one of the conduits (2) when the connection collar (5) is in the closed position and at least a second portion (30b, 31b), electrically connected to the first portion (30b, 31b) and intended to be in contact electrically with the other of the conduits (2) when the connecting collar (5) is in the closed position; characterized in that the first shell (8) and / or the second shell (9) comprises at least one connecting piece-sheath (36, 37) comprising at least one contact tab (38, 39, 38a, 38b, 39a , 39b, 57, 58) extending in at least one space between the first ends (8a, 9a) and / or the second ends of the first shell (8) and the second shell (9), when the collar connection (5) is in the closed position.
    [0002]
    2. Connection collar (5) according to claim 1, characterized in that it comprises at least one contact tab (38, 39, 38a, 38b, 39a, 39b, 57, 58) extending in space between the first ends (8a, 9a) of the first shell (8) and the second shell (9) and at least one contact tab (38, 39, 38a, 38b, 39a, 39b, 57, 58) extending in the space between the second ends (8b, 9b) of the first shell (8) and the second shell (9).
    [0003]
    The connection collar (5) according to claim 1 or claim 2, wherein the lead-connection element (30, 31) is in the form of a wire element in contact with an inner face of the first shell (8) and / or the second shell (9) and comprises at least one intermediate portion (30c, 30d, 31c, 31d), electrically connecting the first portion (30a, 31a) and the second portion (30b, 31b) . 3035950 31
    [0004]
    4. Connection collar (5) according to claim 3, wherein the connecting element-sheath (36, 37) is formed by the intermediate portion (30c, 30d, 31c, 31d) of the connecting element-conduit (30, 31), the intermediate portion (30c, 30d, 31c, 31d) being folded to form at least the contact tab (38, 39). 5
    [0005]
    The connection clamp (5) according to claim 3 when dependent on claim 2, wherein the lead-connection element (30, 31) comprises two intermediate portions (30c, 30d, 31c, 31d), each intermediate portion (30c, 30d, 31c, 31d) being folded to form at least a first tongue (38a, 39a) extending in the space between the first ends (8a, 9a) of the first shell (8) and the second shell (9) and at least one second tongue (38b, 39b) extending in the space between the second ends (8b, 9b) of the first shell (8) and the second shell (9), when the connecting collar (5) is in the closed position. 15
    [0006]
    6. Connection collar (5) according to any one of the preceding claims characterized in that it comprises a hinge device (10) comprising at least one axis (11, 12) on the first shell (8) and the minus one axis (13, 14) on the second shell (9), at least one connecting hinge (15, 16) connecting the axis (11, 12) of the first shell (8) and the axis (13). 14) of the second shell (9).
    [0007]
    The connection collar (5) according to claim 6, wherein the connecting link hinge (15, 16) comprises the contact tab (57, 58) extending in the space between the first end (8a). of the first shell (8) and the first end (9a) of the second shell (9).
    [0008]
    The connection collar (5) according to claim 6 or claim 7, wherein the hinge device (10) comprises a first axis (11) and a second axis (12) on the first shell (8) and, a third axis (13) and a fourth axis (14) on the second shell (9). 3035950 32
    [0009]
    9. Connection collar (5) according to any preceding claim wherein the first shell (8) and / or the second shell (9) is provided with at least one inspection opening (53, 54), completely cleared. 5
    [0010]
    10. Clamp (5) according to any one of the preceding claims wherein at least one of the surfaces of the first shell (8) and / or the second shell (9) is electrically conductive.
    [0011]
    11. Clamp (5) according to any one of the preceding claims 10 characterized in that it comprises a releasable locking device (17) having: a. a locked state, in which the connecting collar (5) is held in the closed position; b. an unlocked state, wherein the first shell (8) and the second shell (9) are freely pivotable relative to each other.
    [0012]
    12. Connection collar (5) according to claim 11 further comprising a clasp (24) articulated on the first shell (8) or the second shell (9), the clasp (24) comprising a fastening portion (25). and at least one return leg (59), the clasp (24) being able to assume two positions: an initial open position, in which the attachment portion (25) is at a distance from the first shell (8), respectively the second hull (9); - a closed position, in which the attachment position (25) is hooked on the second shell (9), respectively of the first shell (8); Wherein the clasp (24) can be in the closed position only when the locking device (17) is in the locked state, and wherein the return lug (59) cooperates elastically with the first shell (8) or the second shell (9) for exerting a force on the clasp (24) tending to bring it back to the initial open position. 30
    [0013]
    13. Clamp (5) according to claim 12, wherein the clasp (24) passes from the closed position to the open position, and vice versa, by rotation on the first shell (8) or the second shell (9) d an angle of a predetermined value. 3035950 33
    [0014]
    14. Connection collar (5) according to one of claims 11 to 13, wherein the locking device (17) comprises at least a first hook (18) articulated on the first shell (8) or the second shell (9). ), the first hook (18) having at least one leaf spring (70) cooperating with the first shell (8) or the second shell (9) and exerting a permanent stress on the first hook (18) tending to maintain it in a fixed stable position.
    [0015]
    15. Coupling (5) according to one of claims 11 to 13, wherein the locking device (17) comprises at least a first hook (18) hinged to the first shell (8), respectively the second hull (9), the first hook (18) comprising at least one opening (74) for rotation about a first hinge axis (20), the opening (74) defining a first center (M), the first hook (18) further comprising at least one notch (66) for snapping onto at least the second shell (9), respectively the first shell (8). 15
    [0016]
    The connection collar (5) according to claim 15, wherein the notch (66) has a bottom (67) defining a second center (N), a first direction (L1) being defined as passing through the first center ( M) and the second center (N) and a second direction (L2) being defined as being perpendicular to the first direction (L1), the notch (66) further having a proximal edge (69) in a third direction ( T) inclined with respect to the second direction (L2).
    [0017]
    The connection collar (5) according to claim 16, wherein the third direction (T) is inclined with respect to the second direction (L2) by an angle (a) between 5 ° and 100, and preferably equal to 70.
    [0018]
    18. Connecting device (1) for sealingly connecting two conduits (2), comprising a sleeve (4) and a connecting collar (5) according to any one of claims 1 to 17. 30
    [0019]
    19. Connection device (1) according to claim 18, wherein the contact tab (38, 39, 38a, 38b, 39a, 39b, 57, 58) is in electrical contact on the sleeve (4) when the collar of connection (5) is in the closed position. 3035950 34
    [0020]
    20. Pipe (3) intended to carry a fluid comprising at least two conduits (2) and a connecting device (1) according to any one of claims 18 or 19 for sealingly connecting the conduits (2). ).
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    同族专利:
    公开号 | 公开日
    WO2016177985A1|2016-11-10|
    US20180135786A1|2018-05-17|
    FR3035950B1|2018-02-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20050023824A1|2003-07-31|2005-02-03|Breay Clifton P.|Conduit coupling assembly|
    US20090096209A1|2007-10-10|2009-04-16|Transdigm, Inc.,|Flexible, self-bonding coupling assembly|
    EP2304297B1|2008-06-30|2013-04-10|Eaton Corporation|Coupling assembly|EP3577381A4|2017-02-02|2020-11-11|Victaulic Company|Mechanical coupling for mechanical and structural tubing|
    US11009159B2|2017-09-28|2021-05-18|AdelWiggins Group, a Division of Transdigm, Inc.|Visual and tactile latch indicator for a fuel system coupling|
    USD873989S1|2017-10-23|2020-01-28|Trevor Levern Jordan|Collar connector|
    CN110953420A|2019-12-19|2020-04-03|宜宾三江机械有限责任公司|Threaded conduit flexible joint|
    法律状态:
    2016-05-31| PLFP| Fee payment|Year of fee payment: 2 |
    2016-11-11| PLSC| Publication of the preliminary search report|Effective date: 20161111 |
    2017-04-26| PLFP| Fee payment|Year of fee payment: 3 |
    2018-03-28| PLFP| Fee payment|Year of fee payment: 4 |
    2019-04-26| PLFP| Fee payment|Year of fee payment: 5 |
    2020-04-22| PLFP| Fee payment|Year of fee payment: 6 |
    2021-04-09| CD| Change of name or company name|Owner name: SAFRAN AEROSYSTEMS FLUID, FR Effective date: 20210302 |
    2021-04-21| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1553995A|FR3035950B1|2015-05-05|2015-05-05|CONNECTING COLLAR AND CONDUIT CONNECTING DEVICE COMPRISING SUCH A CONNECTING COLLAR|
    FR1553995|2015-05-05|FR1553995A| FR3035950B1|2015-05-05|2015-05-05|CONNECTING COLLAR AND CONDUIT CONNECTING DEVICE COMPRISING SUCH A CONNECTING COLLAR|
    PCT/FR2016/051070| WO2016177985A1|2015-05-05|2016-05-06|Coupling collar and device for coupling pipes comprising such a coupling collar|
    US15/571,488| US20180135786A1|2015-05-05|2016-05-06|Coupling collar and device for coupling pipes comprising such a coupling collar|
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