• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A tubular connector comprises a female connector (2) in which a male connector (6) provided with an annular flange (7) is intended to be inserted axially, and a connection element (9) which extends in a transverse direction in the female connector. The connecting member is adapted to mechanically interfere with the flange upon insertion of the male connector into the female connector and to move by itself in said transverse direction toward the interior of the female connector. In addition, it is designed for, after the reaction to the radial elastic deformation on the flange of the male connector, exert by elastic retraction a pressure on a guide ramp (15) so as to produce a thrust force which prolongs its displacement towards the inside of the female connector.
    公开号:FR3021386A1
    申请号:FR1454636
    申请日:2014-05-22
    公开日:2015-11-27
    发明作者:Jerome Chaupin；Frederic Poggi
    申请人:A Raymond SARL；
    IPC主号:
    专利说明:

    [0001] Technical Field The present invention relates to the field of tubular connectors for connecting fluid pipes or conduits, for example motor vehicle fuel lines. More particularly, the invention relates to a tubular connector comprising a female connector in which a male connector provided with an annular flange is intended to be inserted axially, and a connection member which extends in a transverse direction in the female connector. and which is adapted to be resiliently deformed radially outwardly of the female connector by mechanical interference with said flange upon insertion of the male connector into the female connector and, in response to this radial elastic deformation, to move by itself. even in said transverse direction towards the inside of the female connector. PRIOR ART Such a tubular connection for connecting hoses is already known in particular from US patent document 2012/0326435. In this known tubular connection, the connecting element constitutes a retaining element for locking the male connector in position when it is fully depressed in the female connector, in particular by means of a latch extending transversely in the connector. female behind the collar of the male connector 30 so as to block axially. The connection or retaining element further comprises two tabs spaced from each other, as a kind of U-shaped jumper, which extend in a transverse direction inside the female connector, each leg having a frontal face of interference with the flange of the male connector.
    [0002] The connection element is first positioned in the female connector in a high pre-assembly position in which the base of the U protrudes outside the female connector and the two legs of the connection element extend substantially on either side of the male connector at the front of the collar of the latter (if it is considered that the front of the collar corresponds to the front face of the collar furthest downstream in the axial direction in the direction insertion of the male connector into the female connector).
    [0003] When the male connector is pressed axially into the female connector, the front face of the flange of the male connector then interferes with a front end face of the legs of the connection element which is oblique with respect to the axial direction and also relative to to the transverse direction. This results in an elastic radial spacing of the legs of the connecting element by reaction to the thrust force exerted axially on the oblique front end face and a transverse displacement of the connection element in the female element by reaction to the thrust force exerted transversely on this oblique frontal front face. During elastic radial spacing, the elastic tabs accumulate retraction energy.
    [0004] The maximum spacing of the elastic tabs during the transverse displacement of the connecting element corresponds to the diameter of the flange.
    [0005] During the descent of the connection element in the female connector, the tabs deviate on the collar until the maximum distance, namely the diameter of the collar, is reached. Then, once the diameter has passed and thanks to the energy accumulated by the elastic spacing, the legs retract according to a thrust force component which extends in the transverse direction and which continues briefly the transverse displacement of the element. connection to the inside of the female connector. This gives a connection with automatic connection. The connection element in this known tubular connection further comprises a fixed frame extending transversely in the female connector parallel to the legs of the connection element and which comprises at its base an elastic tongue which extends obliquely. relative to the axial direction of the female connector. This tongue is arranged so that when the male connector is driven axially into the female connector, the male connector pushes the tongue to move it axially relative to its base. As a result, the resilient tongue stores energy by compressing, and when the collar diameter is passed through the resilient tabs of the connecting member during its transverse movement, the tongue is released and produces a thrust force on the tongue. connecting member which tends to move it inwardly of the female connector in the transverse direction. The connection element is then in its low retaining position in which the lock prevents axial displacement of the male connector in the female connector. In this low position, the connection element appears almost retracted in the female connector. The tongue thus makes it possible to prolong the depression of the connection element in the female connector after crossing the diameter of the flange of the male connector during its transverse displacement. This known tubular connection, however, has several disadvantages. First, it requires several separate pieces that interact with each other to retain or block the male connector in the female connector and automatically move the connector member to the inside of the female connector. These different parts require a complex kinematic coordination between them. They also increase the manufacturing costs of the tubular connection. This tubular connection also has a very openwork body which makes it less robust. Then, the stroke of the connection element, after crossing the flange, depends on the size of the deformation of the tongue and in practice this stroke is relatively small due to the miniaturization of the parts. As a result, the gap between the high position of pre-assembly and the low position of the connection element is small and therefore this difference is hardly perceptible either visually or on the touch plane. SUMMARY OF THE INVENTION The object of the invention is therefore to overcome the disadvantages indicated above. For this purpose, the subject of the invention is a tubular connector comprising a female connector in which a male connector provided with an annular flange is intended to be inserted axially, and a connection element which extends in a transverse direction in the female connector and which is adapted to be elastically deformed radially outwardly of the female connector by mechanical interference with said collar during the insertion of the male connector into the female connector and, in response to this radial elastic deformation, to move through it -Even in said transverse direction towards the inside of the female connector, characterized in that said connecting element is furthermore designed for, after the reaction to radial elastic deformation on the flange of the male connector, exert by elastic retraction a pressure on a guide ramp so as to produce a thrust force which lengthens the displacement of said connecting member in said transverse direction towards the inside of the female connector. The idea underlying the invention is therefore to efficiently transform the energy that is released by the connecting element during its elastic retraction into a thrust force oriented and controlled in the transverse direction of movement of the element. connection to the inside of the female connector. In particular, the ramp may be provided to extend beyond the flange in the transverse direction so as to lengthen the displacement of the connecting element in the transverse direction. With this arrangement according to the invention, the connecting element can be moved in the transverse direction over a longer stroke, so that it is possible to position the connection element in the pre-assembly fixing position. a greater height than in the known tubular connection presented above and also can force the depression of the connection element in the female connector over a greater distance too. As a result, with the arrangement according to the invention, there can be a positioning gap of the connection element between its pre-assembly position and its low position which is large enough to constitute a reliable control witness. visual or tactile of the complete connection of the male connector in the female connector. In addition, with this arrangement of the invention, a sufficient overlap of the connection element on the flange is allowed to ensure good mechanical strength. Furthermore, the arrangement according to the invention can be implemented in a female connector body which remains relatively closed (ie which has little openwork) which makes it possible to reduce the effects of deposits of 25 sources of contaminants. like dust inside the female connector and increase the robustness of the body. The coupling according to the invention may have the following features: said connecting element has a U-shape with two tabs spaced apart from each other which extend in said transverse direction, each lug having a front face of interference with said flange, in that the female connector has an inner surface which defines two guide ramps which extend in said transverse direction obliquely relative to each other and in that two projections are provided respectively on the two legs of the connecting element so as to respectively press said guide ramps to produce said thrust force; each guide ramp may have a contact surface which comprises ribs or bosses; each guide ramp may have a guide end which is terminated by a recess in which the projection of a corresponding tab of the connection element is engaged; said connecting element moves by itself in said transverse direction between a high pre-assembly position in which it protrudes outside the female connector and a low retaining position in which it is fully recessed inside. the female connector and flush with the outer surface of the female connector; the fitting may furthermore comprise a visual control indicator for correct fitting, for example a marking affixed to the surface of the ramp and which disappears behind the corresponding protrusion when the connection element is fully inserted into the female connector, or marking affixed to the covered connection element when inserted into the female connector. Other features, advantages and details of the present invention will emerge on reading the following description of an exemplary embodiment of the invention given for illustrative and nonlimiting purposes, this description being made with reference to the drawings presented below. below. FIG. 1 schematically illustrates in an exploded view the tubular connection according to the invention comprising here a female connector, an inner ring to the female connector, a male connector comprising a collar and the connection element here a jumper in U shape; FIGS. 2a and 2b schematically illustrate a profile view of the tubular connection according to the invention respectively with the connection element in the pre-assembly high position which protrudes outside the female connector and the connection element in low retaining position flush with the outer surface of the female connector; FIGS. 3a and 3b schematically illustrate respectively in a cross-sectional view and in a perspective view, a state of mechanical interference between the connection element and the flange of the male connector in a first phase of insertion of the male connector in the female connector; Figures 4a and 4b schematically illustrate respectively in cross-sectional view and perspective view, a second state of interference between the connecting element and the flange of the male connector in a second subsequent phase of insertion of the connector male in the female connector; FIGS. 5a and 5b schematically illustrate respectively in a cross-sectional view and in a perspective view, a state of mechanical interference between the connection element and the flange of the male connector in a third subsequent phase of insertion of the connector. male in the female connector; FIGS. 6 and 7 schematically illustrate, in cross-section, the connection connected according to two different embodiments. DESCRIPTION OF THE EMBODIMENTS As can be seen in FIG. 1, the tubular connection according to the invention comprises a tubular connector connector (connector female) 2 here in two parts comprising a tubular main body 3 which extends in an axial direction A and which is provided with an axial opening 4 and a ring 5 engageable axially in the opening 4 of the main body 3. It is It will be understood that the invention extends to a single piece or integral piece of female nozzle. In the tubular connection 1, a tubular connection piece (male connector) 6 is provided to fit axially into the female connector, here in the ring 5. The male connector 6 is in the form of an elongated cylindrical tube and has a annular collar 7 at its circular periphery, the diameter of the annular collar 7 being slightly less than that of the inner diameter of the ring 5. As can be seen further in FIG. 1, the body of the female connector has an internal recess showing an opening radial 8 on the top which forms a kind of slide in which is inserted transversely and slide the connecting element 9. The connecting element 9 is here as a U-shaped jumper with two elastic tabs 5 spaced 5 one of the other and interconnected to the base 11 of the U. The two tabs 10 are profiled to form kinds of beams that slide in the grooves of the slide defined by the radial opening 10 8. The connecting element also comprises a latch 12 designed to come to the rear of the flange of the male connector 6 so as to retain and block in the axial direction When the male connector 15 is fully depressed inside the female connector 2. The legs of the connection element 9 are also arranged so that the connection element moves by itself towards the inside of the female connector. 2 in the transverse direction T by virtue of a thrust force which is produced by reaction to a radial elastic deformation of the tabs which occurs during the insertion of the male connector into the female connector. More particularly, each leg 10 of the connecting element 9 has a front face 10A which faces the flange 7 of the male connector 6 when the latter is engaged in the female connector 2. The front face 10A of each lug 10 has in its part located below the median of the axial opening 4 of the female connector 2, an oblique surface 13 which, when the connecting element 9 is in the high position pre-assembly inside the female connector 2 , is intended to interfere with the flange 7 of the male connector 6 when it is pressed into the female connector 2. The surface 13 extends obliquely both with respect to the axial direction A and also with respect to the transverse direction T when the connecting element is inserted into the female connector to create this thrust force oriented in the transverse direction T.
    [0006] Furthermore, according to the invention, it is further provided for example on the front face 10A of each leg 10 of the connection element (and here at the top of the oblique surface 13), a protrusion 14 which follows next the axial direction A.
    [0007] Two oblique guide ramps 15 are formed here on the lateral sides of the peripheral outer surface of the ring 5. These two guide rails 15 are opposite radial clearance slots. 8A visible in Figure 1 which are provided in the annular peripheral surface of the female connector 2. These radial slots leave a free space to allow the radial spacing of the legs of the connection element inside the female connector, these legs further capable of each being provided with a lateral catch which engages in the upper edge of a radial slot to prevent removal of the connecting member from the female connector. Without limiting the scope of the invention, a notch may also be placed on the non-flexible portion of the connecting member so as to engage the radial slot of the female connector (not shown in the figures).
    [0008] These two oblique ramps 15 start substantially below the median of the opening 4 of the female connector and move towards each other in the axial direction T towards the side of the female connector which is diametrically opposed to the radial opening 8. These two guide ramps 15 are here rectilinear, axially offset from the flange and together form a kind of V which in the axial direction includes the flange of the male connector (in other words the flange is part of inside the V). The projections 14 and the guide ramps 15 are arranged in such a way that when the connection element 9 is inserted into the female connector 2 and passes through the flange 7 of the male connector 6 (that is, passes from the front to the rear of the collar 7), the tabs then being completely spaced apart from each other, each projection 14 of a corresponding lug bears on a corresponding guide ramp 15 while the support of the tab itself on the periphery of the flange 7 of the male connector tends to fade. There is somehow a substitution between the support on the periphery of the collar and the support on the ramp.
    [0009] In FIG. 2a, the male connector 6 is partially inserted in the female connector 2. The connection element 9 is in the pre-assembly high position in the female connector 2. The lugs 10 of the connection element 9 are 30 the front of the flange 7 of the male connector. The projection 14 of each lug 10 abuts an upper edge 16 of a guide ramp 15 which is visible by the radial slot 8A of the female connector. In Figure 2b, the male connector 6 is fully depressed in the female connector 2. The connection member 9 is in the low position of retention and locking in the female connector. The latch 12 of the connection element 9 is at the rear of the flange 7 of the male connector which prevents axial displacement of the male connector 6 in the female connector 2.
    [0010] The projection 14 on each leg is here locked in a recess 15a at the bottom of the corresponding ramp 15 which prevents the withdrawal of the connection element from the female connector by simply pulling on the connection element 9, as shown in FIG. Figure 6. However, one can provide a possible withdrawal of the connection element from the female connector following a voluntary release of the projection 14 of the trough of the ramp with a tip for example. As can be seen in FIG. 2b, in the lower position of the connection element, the top of the connection element 9 (that is to say the base of the U of the jumper) is flush with the outer surface (here the upper surface) of the female connector. In the high position of pre-assembly of the connection element, the top of the connection element 9 protrudes sufficiently far with respect to the upper outer surface of the female connector, for example of the order of 4 to 5 mm, so that an operator can safely differentiate by touch control or visual control the low position and the high position of pre-assembly of the connection element. The kinematics of the displacement of the connection element by itself in the female connector is illustrated in FIGS. 3a to 5b. In FIGS. 3a and 3b, the connection element 9 is in the high pre-assembly position. The male connector 6 is partially inserted into the female connector 2 and is in a pre-assembly position. The lugs 10 of the connection element 9 are at the front of the flange 7 of the male connector.
    [0011] It can be seen in particular that the oblique surface 10A on each lug 10 (the oblique surface 10A is here at the rear of the lug 10 in the figure) is disposed in one knee of the lug which extends below the median M of the axial opening of the female connector 2 and comes into mechanical interference in the axial direction with the flange 7 of the male connector 6. Each projection 14 here abuts an edge 16 at the end of a guide ramp 15. This arrangement prevents unintentional sinking of the connection element in the female connector in the absence of the male connector in the female connector. In FIGS. 4a and 4b, the male connector 6 has now been depressed a little more in the female connector and the flange 7 exerts an axial pressure on the oblique surface 10A of the lugs 10 of the connection element 9. This axial thrust causes the radial spacing of the lugs 10 as illustrated by the arrows E and at the same time a displacement in translation in the transverse direction towards the inside of the female connector as illustrated by the arrow D when the projection 14 is disengaged from the abutment 15.
    [0012] It can be seen from these figures that each protrusion 14 once cleared from the stop 16 of the ramp 15 allows the connecting element to move along the arrow D. Each protrusion 14 can already be placed in front of a ramp 15. 5a and 5b, the male connector 6 is now fully depressed in the female connector 2. The legs 10 moving transversely in the female connector pass "below" the flange 7 of the male connector, that is to say say cross the median of the flange 7 in the direction D, and retract elastically closer to each other as illustrated by the arrows R. The projections 14 then exert pressure on the ramps 15, which pressure is transformed in a component of a thrust force as illustrated by the arrow D which has the effect that the connection element 9 continues by itself its movement inwardly of the female connector until the protrusion They will arrive at the lower end of ramps 15. It will be understood that each protrusion 14 moves by sliding on the corresponding ramp 15 until the pressure it exerts on it becomes zero. The connection element 9 has then reached its low position of retaining and locking inside the female connector. In one embodiment of the invention shown in FIG. 7, it is possible to provide on the surface of each ramp 15 ribs 17 or bosses placed so that the passage of the projection 14 on these ribs or bosses 17 causes a noise such as a noticeable rattling which serves as an end-of-travel audible indicator for the connection element. These ribs are also designed to allow only the descent of the locking element in the low position and prohibit its recovery in pre-assembly position against vibration. The reassembly in pre-assembly position can however be performed by exerting a sufficient traction force to deform the tabs. It is also possible to provide in the tubular connection 1 according to the invention a visual indicator for checking the complete depression of the male connector in the female connector in the form of a marking affixed for example at the end end of each ramp. this marking being covered by a protrusion when the connecting element has arrived in its low position of restraint and blocking. It can further provide a marking affixed to the connection element which is covered when inserted into the female connector. The connection element in the connection with automatic connection according to the invention can adapt to male connectors of different profiles or different diameters as well as to collars of different radii. The tubular connection 1 according to the invention comprises few separate parts which can all be made of plastics material, for example by injection molding.
    权利要求:
    Claims (6)
    [0001]
    REVENDICATIONS1. Tubular connection comprising a female connector (2) in which a male connector (6) provided with an annular flange (7) is intended to be inserted axially, and a connecting element (9) which extends in a transverse direction ( T) in the female connector and which is adapted to be deformed elastically radially outwardly of the female connector by mechanical interference with said flange upon insertion of the male connector into the female connector and, in response to this radial elastic deformation, moving by itself in said transverse direction towards the inside of the female connector, characterized in that said connecting element is furthermore designed for, after the reaction to the radial elastic deformation on the flange of the male connector, to exert by retraction elastically pressing a guide ramp (15) so as to produce a pushing force which prolongs the movement acement said connection element in said transverse direction towards the inside of the female connector.
    [0002]
    2. A coupling according to claim 1, characterized in that said connecting element is U-shaped with two tabs (10) spaced apart from each other which extend in said transverse direction, each tab having a front face (10A) interfering with said flange, in that the female connector has an inner surface which defines two guide ramps (15) which extend in said transverse direction obliquely relative to each other and in two protrusions (14) are respectively provided on the two legs of the connecting element so as to respectively press said guide ramps to produce said thrust force.
    [0003]
    3. A coupling according to claim 1, characterized in that the guide ramp has a contact surface which has ribs or bosses (17).
    [0004]
    4. A coupling according to claim 2, characterized in that each guide ramp has a guide end which is terminated by a recess in which is engaged the projection of a corresponding tab of the connecting element.
    [0005]
    5. A coupling according to claim 1, characterized in that said connecting element moves by itself in said transverse direction between a high pre-assembly position in which it projects outside the female connector and a low position of retainer into which it is fully depressed inside the female connector and is flush with the outer surface of the female connector.
    [0006]
    6. Fitting according to claim 1, characterized in that it comprises a visual indicator of good editing control.
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    引用文献:
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    法律状态:
    2015-05-21| PLFP| Fee payment|Year of fee payment: 2 |
    2015-11-27| PLSC| Search report ready|Effective date: 20151127 |
    2016-05-20| PLFP| Fee payment|Year of fee payment: 3 |
    2017-05-23| PLFP| Fee payment|Year of fee payment: 4 |
    2018-05-22| PLFP| Fee payment|Year of fee payment: 5 |
    2019-05-22| PLFP| Fee payment|Year of fee payment: 6 |
    2020-05-22| PLFP| Fee payment|Year of fee payment: 7 |
    2021-05-20| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1454636A|FR3021386B1|2014-05-22|2014-05-22|TUBULAR CONNECTION WITH AUTOMATIC CONNECTION|FR1454636A| FR3021386B1|2014-05-22|2014-05-22|TUBULAR CONNECTION WITH AUTOMATIC CONNECTION|
    PL15725477T| PL2971920T3|2014-05-22|2015-05-21|Tubular coupling with automatic connection|
    PCT/FR2015/051336| WO2015177472A1|2014-05-22|2015-05-21|Tubular coupling with automatic connection|
    CN201520333971.8U| CN204664684U|2014-05-22|2015-05-21|Tubular configured joint|
    DK15725477.2T| DK2971920T3|2014-05-22|2015-05-21|Pipe connection with automatic connection|
    CN201510264031.2A| CN105090641B|2014-05-22|2015-05-21|Tubular configured joint|
    EP15725477.2A| EP2971920B1|2014-05-22|2015-05-21|Tubular coupling with automatic connection|
    JP2017513359A| JP6311073B2|2014-05-22|2015-05-21|Tubular connector with automatic connection|
    US14/758,415| US10047889B2|2014-05-22|2015-05-21|Tubular connector with an automatic connection|
    ES15725477T| ES2746069T3|2014-05-22|2015-05-21|Tubular joint with automatic connection|
    HK16101094.5A| HK1214331A1|2014-05-22|2016-01-29|Tubular coupling with automatic connection|
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