• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
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  • 优先权
    • 专利摘要:
    The device comprises: - a compass (12) which has a head (13) and on which are articulated two branches (14a, 14b) connected to the load (2a, 2b), - a vertical upright (15) disposed in the head (13), and which slides in it - the upper end of the vertical upright (15) is a gripping end, and the lower end (17) of the upright (15) is connected to the branches (14a , 14b) of the compass (12) via two connecting rods (18a, 18b) hinged to the vertical upright (15) and to the legs (14a, 14b) by hinges (19, 20a, 20b). Each branch (14a, 14b) of the compass (12) is connected to a branch (2a, 2b). A connecting piece (11a, 11b) is secured to the board (2a, 2b), at the top of the bridge, fixed to the upper part of the board (2a, 2b) by fasteners. The ends of the legs (14a, 14b) are articulated (24a, 26a, 24b, 26b) mounted on each connecting piece (11a, 11b). The head (13) and the connecting rods (18a, 18b) ensure the automatic spacing of the panels (2a, 2b) at the time of lifting. Another function of the compass (12) is to ensure the vertical stability of the panels (2a, 2b). It comprises an automatic fixing system (29a) of the device for automatic gripping (3) to the boards (2a, 2b)
    公开号:FR3032953A1
    申请号:FR1551415
    申请日:2015-02-19
    公开日:2016-08-26
    发明作者:Sylvain Lefeuvre；Adrien Iafrate
    申请人:Outinord St Amand SA；
    IPC主号:
    专利说明:

    [0001] 1 device for gripping the load, shuttering system comprising such a device, and manufacturing method.
    [0002] The invention relates to the field of devices for gripping loads, shuttering systems comprising such a device, and their manufacturing processes. More specifically, the invention relates to the field of banches.
    [0003] On a construction site, buildings can be built using banches. In such a process, the banches are brought to a construction site, then placed in a first place where a wall is to be formed. In this first place, the boards are arranged face to face with the desired spacing. Both side panels both comprise a formwork panel comprising a formwork surface. The two panels are stabilized in this position, in which the two formwork surfaces face each other. The panels are stabilized, for example, in that they are connected together by means of a superior stabilizing device which extends above the wall to be formed, and connects the two opposite panels together. This upper stabilization device is a removable device, which is assembled to the panels for the duration of the worksite, and disassembled from them once the site is completed. Once the panels installed and stabilized face to face, a wall is made by pouring concrete between the two panels. Once the concrete is hardened, we separate the two panels from the wall formed. The two panels being connected to one another by the stabilizing device, the two panels must be moved apart from one another to the extent permitted by this stabilizing device, and move the assembly over the wall formed, until it was placed in a later location to make another wall of the building. This process is known from FR 2 538 832, of the applicant. In FR 2 538 832, at the time when it is desired to separate the two panels of the wall formed, it is necessary to grasp the panels by a crane. To implement this step, we must come assemble a rudder to the two sides. This operation is a manual operation that must be done for each wall formed: A worker manually assembles the rudder to the boards so that a crane can perform the gripping of the boards. The action of the crane on the rudder makes it possible to operate the separation of the crags. Then, once the banches separated from the wall formed and placed in the subsequent location, it is again manually manual disassembly of the spreader racks. The lifter is stored until further use. Variations of implementation of this technology, although having certain disadvantages, are proposed in FR 2 718 777 (shuttering panel) or FR 2 718 778 (head of the two-part stabilization device). The manual interventions necessary to assemble the rudder to the boards and then to disassemble them, pose a risk for the safety of the workers (indeed, they are made by a worker mounted on the platform overhanging the banche), and negatively impact the productivity (In fact, it takes a certain amount of time for each wall formed to assemble the rudder with the banches and then, for each wall to be formed, to disassemble it). The Applicant has perfected its own system by integrating the function of spreading the boards directly into the stabilizing device. This invention was the subject of FR 2,700,158 of the applicant. This patent brings a significant gain in safety, and productivity because, instead of having to assemble the banches and disassemble the rudder bar for each wall, the spacer function of the panels is integrated in the stabilizing device. For this, the stabilization device, then known from FR 2 538 832, has been modified to incorporate a vertical upright and a linkage. Thanks to these modifications, the stabilizing device has become a device for gripping the boards, because the crane can take the boards 3032953 2 simply by mating with the upper end of the stabilizing device. In addition, this step of gripping crane by the crane, until now requiring significant manual work, has become automatic, because it is not necessary to perform the important manual operations 5 assembly / disassembly of the rudder for each pan wall to form. The stabilization device is used directly, which is in any case assembled to the panels for the entire duration of the worksite, and which has been modified to enable this function to be implemented. In addition, the stability is improved. In FR 2 700 158, the stabilization device remains removably assembled to the boards, since it is generally assembled to these at the beginning of the worksite, and disassembled from them at the end of the worksite, to allow the transport later to another site or to the factory to allow a maintenance operation of the banches. A later variant of implementation of the integration of the spacer function to the stabilization device, although having certain drawbacks, is proposed in FR 2 754 290, in which the head remains below the ends of the branches.
    [0004] The gripping device of FR 2 700 158 is entirely satisfactory. FR 2,700,158 thus describes a device for the automatic gripping of a load, particularly on a construction site, comprising: a compass which has a head and on which are mounted articulated two branches connected to the load, a vertical upright disposed in the head, and sliding in it, the upper end of the vertical upright constituting a gripping end, and the lower end of the upright being connected to the arms of the compass by means of two connecting rods hinged to the vertical upright and branches by joints, Each branch of the compass being connected to a banche, A connecting piece being secured to the banche, at the top of the bridge, fixed to the upper part of the banche by fixings, The ends branches being hingedly mounted on each connecting piece, the head and the connecting rods ensuring the automatic spacing of the panels at the time of the Another function of the compass is to ensure the vertical stability of the banks. FR 2 700 158 was then perfected by the applicant by allowing the device to be inclined for gripping around a horizontal axis perpendicular to the formwork faces, as described in patent FR 2 808 041. Subsequently, EP 2 308 790 also provides the inclination of devices (called "gantries" in this document) towards each other in the extension of the slings. In this document, the frames are also removably attached to the upper edge of the panels. However, driven by its desire to continue automating the processes implemented on the site, the plaintiff continued to look for ways to automate and make reliable the processes implemented. In practice, it remains necessary, at the beginning of the project, to assemble the device for gripping the banches, sufficiently rigid to ensure the attachment of the device for gripping and banches for the duration of the site. Attachment of the device for gripping and banches is generally implemented in a conventional manner, from a technical point of view. For example, in FR 2 700 158, there is provided a piece of 45 connection secured to the wall by fasteners at the top of the bridge. In FR 2 808 041, there is provided a plate fixed on the top of the box. Other variants have been envisaged. For example, FR 2 853 924 provides a manual fastening system of the stabilization device to the box, comprising an anchoring stock which is tightened via a set of threaded rod / nut, the anchor stock cooperating with a lifting head of a formwork forming a hooking means. This embodiment also repeats that previously presented by the Applicant in FR 2 711 707 (however, for a stabilization device which does not integrate the automatic spacing function). Still concerning the question of the fixing of the stabilization device to the boards, the utility certificate FR 2 914 000 mentions that the stabilization device comprises feet of fixation on the heads of the boards by means of not anchoring devices detailed .
    [0005] In another field of technology, FR 2 768 453 can be mentioned, in which a frame is used to be fixed to the ground, the shuttering panels being sliding, by means of carriages, into the formwork position. This technology does not allow the separation of the panels by lifting.
    [0006] There is a need to reduce complex operations occurring on site, including complex mechanical fastening operations to be done manually by a worker at height. Hereinafter, a presentation of the invention.
    [0007] According to a first aspect, the subject of the invention is a device for the automatic gripping of a load, in particular of bundles, as defined above, and which also comprises an automatic fastening system for the load. device for automatic gripping at the boards in which: The connecting piece comprises a base and a locking member movable relative to the base between a free position and a locking position, a spring biasing the locking member towards its position. The latch comprises an actuating surface urging the locking member towards its free position against the biasing of the spring, during the assembly of the device for automatic gripping at the beaker into a locking configuration in which the spring is allowed to push the locking member into its locking position, in which it cooperates with a complementary pattern of locking 30 integral with the banche. With these provisions, it assembles the device for automatic gripping banches without the need to perform many manual operations at height.
    [0008] According to some embodiments, one and / or other of the following arrangements may be provided: each branch comprises a first and a second bar, each articulated at the same time on the head and on the connecting piece, and each connecting rod is articulated on one of the bars of the respective branch; the connecting piece is made of an upper portion and a lower portion pivotally mounted relative to each other about a horizontal axis perpendicular to the formwork faces of the panels, the branch of the compass is articulated on the upper part of the connecting piece about an axis parallel to the formwork faces of the panels and the base is part of the lower part of the connecting piece; the connecting piece has a stirrup shape, and comprises two bases spaced from each other along a horizontal axis parallel to the formwork faces of the panels; the form comprises a guiding portion of the device for automatic gripping in a vertical direction of assembly of the device for automatic gripping and the formwork; the formwork comprises one adapted to receive the connecting piece, and provided with an opening through which the locking member extends to fix the device for automatic gripping the formwork; The device further comprises an automatic uncoupling system comprising an actuator actuable by a user and moving, when it is actuated, the locking member from its locking position to its free position against the biasing of the spring , and keeping him in this position; The device further comprises an activation system of the automatic disconnection system, adapted to move the automatic disconnection system from a passive state in which it is not operable to an active state in which it is operable, automatically when assembling the device for automatic gripping.
    [0009] According to another aspect, the invention relates to a formwork system comprising two panels arranged opposite each other, and to such a device for automatic gripping, the device for automatic gripping being fixed to the panels by the system of prehension. automatic fixation. According to another aspect, the invention relates to a method of manufacturing a formwork system comprising a device for automatic gripping and banches in which - two panels are provided opposite each other - such a device for automatic gripping, - it generates a relative movement of the device for automatic gripping and banquettes until automatically fix the device for automatic gripping to the panels by the automatic fastening system. The figures of the drawings are now briefly described. Figure 1 is a diagram corresponding to a perspective view of a part of a formwork system. Figure 2 is a perspective view of a part of the formwork system of Figure 1 before automatic fixing. Figure 3 is a plan view of the rear of a part of the formwork system automatically fixed. FIGS. 4a to 4e are cross-sectional views along the plane IV-IV in FIG. 3 at different stages of the automatic fixing and the automatic disconnection. Hereinafter a detailed discussion of several embodiments of the invention together with examples and reference to the drawings. In the different figures, the same references designate identical or similar elements. FIG. 1 schematically represents in perspective the upper part of a shuttering system 1. The shuttering system 1 comprises two panels 2a, 2b, and a device for automatic gripping 3. The two panels 2a, 2b are represented very schematically. right here. In particular, there is shown a formwork panel 4a, 4b for each panel 2a, 2b. A priori, the indices "a" and "b" are used to designate respectively a first and a second section. In addition to the formwork panels 4a, 4b, shown here, the panels 2a, 2b may comprise a certain number of accessories, which are not all shown here to aid readability, but which are known in particular from the above-mentioned prior documents. and / or other patents of the plaintiff. These accessories include a gangway comprising a platform 5b disposed in the upper part of the board 2b and a railing 8b for personal safety.
    [0010] These accessories also include means of access to the platform, in particular in the form of a ladder (not shown) allowing access to the platform from below, and a hatch. 7b formed in the platform. The panel 2a also has such accessories, which are not represented. The panels 2a, 2b are shown in the configuration of use, that is to say, they are associated in two, with their formwork panels 4a, 4b vis-à-vis. In particular, each formwork panel 4a, 4b has a formwork face 9a, 9b, the formwork faces 9a, 9b facing each other. Each formwork panel 4a, 4b has a rear face 10a, 10b, the rear faces being opposite, respectively, to the formwork side 9a, 9b. To fix ideas, we call Z the vertical direction, and X the horizontal direction such that the formwork side extends in the plane X-Z. The Y direction completes the X-Y-Z triad. In the configuration of use, the panels are positioned precisely so that the spacing between the formwork faces 9a, 9b exactly defines the location of the wall to form. The panels 2a, 2b are associated in pairs by means of an automatic gripping device 3. This is attached to the two panels 2a, 2b and extends above the wall to be formed. The device for the automatic gripping 3 comprises in particular a first connecting piece 11a fixed to the board 2a, and a second connecting piece 11b fixed to the board 2b, at the top of the bridges, the two connecting pieces 11a. , 11b being associated through a mechanism which will be described in more detail below. The device for automatic gripping 3 comprises a compass 12 which has a head 13 and on which are mounted articulated two branches 14a, 14b each connected to a panel 2a, 2b.
    [0011] The device for automatic gripping 3 comprises a vertical upright 15, disposed in the head 13, and sliding therein. The vertical upright comprises a coupling portion 16 to a hoist, this coupling portion 16 being for example provided at the upper end of the upright 15. The coupling portion 16 can be made in any suitable manner allowing 'couple it to a hoist.
    [0012] The lower end 17 of the vertical upright is connected to the arms 14a, 14b of the compass 12. The lower end 17 of the vertical upright 15 is connected to the arms 14a, 14b of the compass 12 by means of two connecting rods 18a, 18b, articulated on the one hand on the upright 15 by a hinge 19 and on the other hand to the branches 14a, 14b by hinges 20a, 20b.
    [0013] The branches 14a, 14b are hingedly mounted, on the one hand on the head 13 and, on the other hand, on the respective connecting piece 11a, 11b. In particular, the articulation axes of the branch 14a on the head 13, of the branch 14a on the connecting piece 11a, of the branch 14b on the head 13, the branch 14b on the connecting piece 11b, the connecting rod 18a on the vertical upright 15, the connecting rod 18b on the upright 15, the rod 18a on the branch 14a, the rod 18b on the branch 14b, are all parallel to each other.
    [0014] In the exemplary embodiment, the branches 14a, 14b are each made in the form of a deformable parallelogram. The branch 14a thus comprises an upper bar 21a and a lower bar 22a. The rod 18a is articulated on the branch 14a by being articulated on the lower bar 22a. The upper bar 21a is articulated on the head 13 in a hinge 23a and on the connecting piece 11 has a hinge 24a. The lower bar 45 is articulated on the head 13 in a hinge 25 a and on the connecting piece 11 has a hinge 26 a.
    [0015] The branch 14b thus comprises an upper bar 21b and a lower bar 22b. The connecting rod 18b is articulated on the branch 14b by being articulated on the lower bar 22b. The upper bar 21b is articulated on the head 13 in a hinge 23b and on the connecting piece 11b in a hinge 24b. The lower bar 22b is articulated on the head 13 in a hinge 25b and on the connecting piece 11b in a hinge 26b. All the axes of articulation presented above are parallel to each other, and parallel to the formwork surfaces.
    [0016] In the embodiment shown, the connecting pieces 11a, 11b are made in two parts. Regarding the connecting piece 11a, it comprises an upper portion 27a and a lower portion 28a. The upper portion 27a is tiltable relative to the lower portion 28a about a tilting axis Y1 perpendicular to the formwork faces. In FIG. 1, the upper part 27a is shown inclined by a few degrees with respect to the lower part, so that the assembly consisting of the head 13, the branches 14a, 14b, and the upper part 27a, 27b of the connecting pieces 11a, 11b extends in a plane slightly inclined relative to the vertical, and the hinge pins 19, 20a, 23a-26a, 20b, 23b-26b above-mentioned are perpendicular to this plane. An abutment system (not shown) limiting the relative angular inclination range of the upper 27a and lower 28a portions at a predetermined angular displacement from the vertical can be provided. May be provided a biasing means (not shown) biasing the upper portion 27a of the connecting piece 11 to 20 relative to the lower portion 28a of the connecting piece 11a towards the vertical. In such a configuration, the hinge pins 19, 20a, 23a-26a, 20b, 23b-26b above-mentioned are parallel to the formwork and horizontal surfaces. The branch 14a is articulated on the upper portion 27a of the connecting piece 11a. In particular, the upper bar 21a and the lower bar 22a of the branch 14a are mounted hinged to the upper part 27a of the connecting piece 11a. The two parts 27a, 28a of the connecting piece 11a can be made reclinable relative to each other in any suitable manner. For example, it is possible to provide a physical pivot, a linkage, or an implementation involving an instantaneous virtual geometrical axis of rotation that is not physically defined, and that can even move during the movement. The invention is not limited to a connecting piece comprising two parts tilting relative to each other. Alternatively (not shown), the connecting piece 11a does not allow this inclination.
    [0017] The above description for block 2a can also be made for box 2b by replacing the suffix "a" with the suffix "b" in this description. The above embodiment is shown symmetrical with respect to a vertical intermediate plane 40 between the form surfaces 9a, 9b and parallel thereto. However, alternatively, it could involve an asymmetry or an additional degree of freedom to treat differentially the two branches. The device for automatic gripping 3 comprises an automatic fastening system 29a which will be explained in more detail below with reference to FIGS. 2 and 3. The automatic fixing system 29a is carried by the connecting pieces 11a, 11b . Hereinafter, only the embodiment used for the connecting piece 11a is described, but a similar embodiment is provided for the connecting piece 11b. As can be seen in FIG. 2, in the case of a two-part connecting piece 11a, the automatic fixing system 29a is carried by the lower part 28a of the connecting piece 11a.
    [0018] As shown in FIG. 2, the connecting piece 11a has a stirrup shape, and comprises two bases 30a, 31a spaced from one another along the horizontal axis X parallel to the formwork faces. The panel 2a comprises, at the rear face 10a of the formwork panel 4a, two receiving bodies 32a, 33a each sized to receive a base 30a, 31a. The two receiving bodies 32a, 33a are thus spaced from each other along the horizontal axis X parallel to the formwork faces. The two receiving bodies 32a, 33a are arranged on either side of a lifting ring 65a of the formwork. Subsequently, the base 30a and the 32a are described, knowing that the description can also be applied to the base 31a and 33a was. Moreover, alternatively (not shown), one does not necessarily have two bases and two futs.
    [0019] 15 One could have only one base and one was. The base 30a comprises a substantially closed outer envelope 57a defining an interior space 58a. The outer shell 57a has an outer surface 59a and an inner surface 60a opposite.
    [0020] Was 32a includes a window 34a including a locking surface 35a. 32a has an insertion opening 36a for insertion therethrough of the base 30a. The opening 36a is in particular formed in the upper edge 37a of the formwork panel 4a of the panel 2a. The 32a extends substantially vertically downwards from the opening 36a. In the present example, the 32a extends vertically, and the base 30a is assembled by a substantially vertical translation movement downward. However, alternatively, other relative motions are conceivable. As can be seen in FIG. 4a, the end 32a has an internal surface 38a complementary to the external surface 59a of the base 30a, and adapted to guide the latter during assembly of the device for automatic gripping 3. For example, the base 30a has a tapered frustoconical lower end 39a toward its free end, and the inner surface 38a of the barrel 32a has a chamfer 40a of complementary geometry adapted to cooperate therewith to correctly locate the base 30a along the Y axis. The connecting piece 11a comprises a locking member 41a movable relative to the base 30a between a free position and a locking position (Figure 4a). In the example presented, the mobility of the locking member 41a is a translation parallel to the Y axis, guided by guide surfaces 61a of the base 30a however other embodiments are possible. A spring 42a urges the locking member 41a towards its locking position. In the locking position, shown in Figure 4a, the locking member 41a protrudes beyond the outer surface 59a of the base 30a through a window 43a provided for this purpose. The locking member 41a also has an actuating surface 44a engaging a surface 62a of the receiving bed 32a to move the locking member 41a according to its degree of freedom against the action being taken. by the spring 42a from its locking position to its free position. This actuating surface 44a is, for example beveled down. The locking member 41a also has a locking surface 45a adapted to cooperate with the receiving end 32a to lock the connecting piece 11a to the board 2a. This is for example its upper surface.
    [0021] In addition, an automatic disconnection system 46a is provided. The automatic disconnection system 46a comprises an actuator 47a made as a moving part inside the base 30a according to a degree of freedom, in this case vertical, under the action of a user. The actuator 47a is movable between a high, safe, position, and a low, actuating position. The automatic disconnection system 46a comprises an actuating pin 48a carried by the locking member 41a, and an actuating surface 49a of the actuator 47a adapted to cooperate with the actuating pin 48a to transform the movement of actuation (in the example, vertical) of the actuator in a displacement of the locking member 41a from its locking position to its free position. In this case, where the actuator 47a is subjected to a vertical translation movement, a bevelled surface 49a is provided so as to convert the vertical displacement along the Z axis to a horizontal displacement in accordance with FIG. Y axis. Other achievements are possible. The automatic disconnection system 46a also comprises a return spring 50a pushing the actuator 47a towards the high position, in which it is not likely to unlock the device for automatic gripping 3 of the board 2a. There is further provided a locking system 51a of the actuator 47a of the automatic disconnection system 46a in the actuated position. In the example shown, this locking system 51a comprises a hook 52a carried by the actuator 47a, and a locking pin 53a secured to the outer casing 57a of the base 30a. As explained above, the actuator 47a is movable relative to the outer casing 57a of the base 30a according to a degree of freedom (here translation Z) against the bias of the spring 50a. In the configuration in which the springs 50a are compressed, the hook 52a cooperates with the locking pin 53a to lock the actuator 47a on the outer casing of the base 30a in this low position, despite the action of the springs 50a. In addition, in this position, as explained above, the locking member 41a is in its free configuration. The movement opposite the actuating movement of the actuator 47a being prohibited by this locking, the locking member 41a is then maintained in its free configuration.
    [0022] Alternative embodiments of this locking function in the actuated position may be provided as a variant than a hook / pin system as shown. The locking system 51a of the actuator 47a of the automatic disconnection system 46a can assume an active state, in which it is functional, as explained above. An activation system 64a may be provided for passing this locking system 51a alternately between a passive state and an active state. This can be achieved for example by moving the locking pin 53a. Thus, it is expected that the locking pin 53a is movable between an active configuration (already described) and a passive configuration in which it can not come into engagement with the hook 52a, regardless of the movement of the hook. A spring 54a 40 is used to bias the lock pin 53a toward its passive position. The locking pin 53a can be placed by a user in its active position against the bias of the spring 54a. The passive configuration of the locking pin 53a is for example shown in FIG. 4a. The locking pin 53a is contained therein, hook side 52a, in a housing 63a on which the hook 52a abuts without being able to penetrate therein.
    [0023] In this passive state, even if the user actuates the actuator 47a, he can not unlock the device for automatic gripping 3 of the form, since as soon as he releases the actuation of the actuator 47a, the system returns to the locked position.
    [0024] According to an exemplary embodiment, provision can be made to automatically move the locking pin 53a from its passive state to its active state during assembly of the device for automatic gripping 3 to the section 2a 2a. For example, the base 30a has an aperture 55a through which the locking pin 53a projects into its passive state. The end of the locking pin 53a projecting through the opening 55a cooperates with a surface 62a of the receiving station 32a, which urges it towards its active position during an insertion movement of the base 30a in the seat. 32a. In the active position, one end of the locking pin 53a leaves the housing 63a through a hole provided for this purpose. Other embodiments are possible.
    [0025] The system just described operates as follows. We have banches on a construction site. These are usually stored flat horizontally somewhere.
    [0026] When it is desired to pair together two boards, a first board 2a is lifted with a lifting gear, and it is placed substantially vertically, a position in which it is held temporarily by any appropriate means (stay, ...). A second panel 2b is raised with a lifting device, and it is placed substantially vertically, opposite the first panel 2a, in which position it is temporarily held by any appropriate means (prop, .. .). With the hoist, the device for automatic gripping 3 is placed above the two panels 2a, 2b, with the connecting piece 11a substantially above the openings 36a formed in the first panel 2a, as shown in FIG. Figure 2 (ditto for panel 2b, with the connecting piece 11b substantially above the openings in the second panel 2b). By moving the device for automatic gripping 3 downwards (for the example presented), the automatic gripping device 3 is automatically attached to the panels 2a, 2b.
    [0027] More specifically, in the starting configuration shown in FIG. 4a, the locking member 41a and the locking pin 53a protrude out of the outer casing of the base 30a, and the actuator 47a is biased toward the high. During the movement of the automatic gripping device 3 downwards, the base 30a is guided within the barrel 32a. In a first step (FIG. 4b), the locking member 41a is pushed back to its free configuration, compressing the spring 42a, by cooperation with the internal surface 38a of the receiving well 32a. As can be seen in FIG. 4c, when the locking member 41a comes opposite the window 34a provided for this purpose in the hole 32a, the spring 42a can urge the locking member towards its locking position, in which it partially extends into it. We are then in lock configuration, and the device for automatic gripping 3 is then locked on board 2a. The same phenomenon occurs simultaneously between the base 31a and 33a was, so as to double the lock on this form. In addition, the same phenomenon occurs on the side of the panel 2b, so that the device for automatic gripping 45 3 is then locked on the two panels 2a, 2b.
    [0028] 3032953 10 This attachment is automatic, by a simple movement of the device for automatic gripping 3 downwards. There is no need for manual tightening by a worker at height.
    [0029] In this configuration, the panels 2a, 2b are stabilized via the device for automatic gripping 3. The temporary or temporary stabilizing means can be removed. If the attachment of the device for the automatic gripping 3 to 2a, 2b banches was made at the place where to make the first wall, then one proceeds conventionally pouring concrete between the two panels in this position. But the attachment of the device for automatic gripping 3 to the panels 2a, 2b may have been made in a dedicated location, in which case, the formwork system thus produced is moved to the location where the wall is to be formed. For this purpose, the hoops 2a, 2b are grasped by the hoist by coupling the hoist to the coupling portion 16 of the automatic gripping device 3, and the shuttering system is moved towards the hoist intended location. In the intended location, two formwork systems can be secured together laterally laterally, each formwork system comprising two panels and an automatic gripping device 3, in order to perform, in a single casting operation, a longer wall. Once the concrete has hardened, we separate the panels 2a, 2b from each other and from the wall formed between them. For this purpose, the crane hook is again associated with the coupling portion 16 of the device for automatic gripping 3. If there are two pairs of flanges secured together, the crane hook can be associated with the coupling portion. 16 of each of the devices for automatic gripping 3, and take advantage if necessary of the tilting of the connecting pieces 11a, 11b to reduce the bending forces imparted to the devices for automatic gripping 3, as described in FR 2 808 041.
    [0030] The devices for the automatic gripping 3 allow an automatic spacing of the boards, and an increased stabilization, due to the sliding of the vertical upright 15 in the head 13, as described in FR 2 700 158. The crane hook pulls on the vertical upright 15, which allows a sliding of the head 13 downwards relative thereto, and hence a spacing from each other of the connecting pieces 11a, 11b and 30 banches 2a, 2b. The banches spaced apart from each other and from the wall are raised above the formed wall, then brought to a subsequent wall location to be formed, where they are arranged with the proper orientation and spacing, in order to achieve a subsequent wall.
    [0031] Once the building is completed, it is desired to separate the panels 2a, 2b of the device for automatic gripping 3. We are still in the configuration of Figure 4c, presented above. In particular, it will be noted that during the assembly of the device for automatic gripping 3 to the panels 2a, 2b, the locking pin 53a has been placed in its active configuration, by cooperation with the inner face 38a of the seat 32a. compressing the spring 54a. In this configuration, the hook 52a can be made to cooperate with the locking pin 53a, unlike the configuration of Figure 4a.
    [0032] To unlock the device for the automatic gripping 3 of the panels 2a, 2b, the user actuates the handle 56a (FIG. 2) which is linked with the actuators 47a of the two bases 30a, thus causing the actuators 47a to be moved downwards by relative to the casing 57a of the base 30a, against the bias of the 3032953 11 springs 50a (Figure 4d). During this movement, the actuating surface 49a of the actuator 47a cooperates with the actuating pin 48a of the locking member 41a, which moves the locking member 41a towards its free configuration, in which it no longer pass through the window 34a. The device for the automatic gripping 3 is then detached from the blank 2a. In addition, the free position of the locking member 41a is maintained through the hook 52a which cooperates with the locking pin 53a, thereby locking the actuator 47a in the down position. This lock prevents the springs 50a from pushing the actuator 47a upwards. The operator can then release the handle 56a without the risk of seeing the system re-lock, and go to the other side to actuate the handle side of the board 2b.
    [0033] During the movement of the automatic gripping device 3 upwards, as shown in FIG. 4e, the base 30a will emerge from the seat 32a, so that the locking pin 53a is released, and is pushed back into the passive position by the spring 54a. The actuator 47a is then unlocked, and is pushed upwards by the springs 50a. The actuating surface 49a then releases the actuating pin 48a from the locking member 41a, which is urged towards its locking configuration by the springs 42a. However, the locking member 41a is then no longer facing the window 34a, but comes into contact with the inner surface 38a of the 32a fut. Continued movement of the device for automatic gripping 3 allows to completely disengage it banches. Then, the panels 2a, 2b and the automatic gripping device 3 can be processed as required.
    权利要求:
    Claims (10)
    [0001]
    REVENDICATIONS1. Device for the automatic gripping of a load, particularly on a construction site, comprising: a compass (12) which has a head (13) and on which are articulated two arms (14a, 14b) connected to the load (2a, 2b ), a vertical upright (15), disposed in the head (13), and sliding therein, the upper end of the upright (15) constituting a gripping end, and the lower end (17) of the upright vertical (15) being connected to the arms (14a, 14b) of the compass (12) by means of two connecting rods (18a, 18b) hinged to the vertical upright (15) and to the arms (14a, 14b) by means of articulations (19, 20a, 20b), each leg (14a, 14b) of the compass (12) being connected to a formwork (2a, 2b), A connecting piece (11a, 11b) being secured to the board (2a, 2b) , at the level of the top of the bridge, fixed to the upper part of the wall (2a, 2b) by fasteners, the ends of the branches (14a, 14b) are articulated mountings (24a, 26a, 24b, 26b) on each connecting piece (11a, 11b), the head (13) and connecting rods (18a, 18b) ensuring the automatic spacing of the boards (2a, 2b). at the time of lifting, Another function of the compass (12) is to ensure the vertical stability of the boards (2a, 2b), characterized by an automatic fixing system (29a) of the device for automatic gripping (3) to the boards ( 2a, 2b) in which: the connecting piece (11a, 11b) comprises a base (30a) and a locking member (41a) movable relative to the base (30a) between a free position and a locking position, a spring (42a) urging the locking member (41a) towards its locking position, the formwork (2a, 2b) comprises an actuating surface (44a) biasing the locking member (41a) towards its position free against the biasing of the spring (42a), during assembly of the device for automatic gripping (3) in the form (2a, 2b) into a locking configuration in which the spring (42a) is allowed to push the locking member (41a) into its locking position, in which it cooperates with a complementary locking unit (35a) of the banche (2a, 2b).
    [0002]
    2. Device according to claim 1, wherein each branch (14a, 14b) comprises a first and a second bars (21a, 22a, 21b, 22b), each hinged at the same time on the head (13) and on the piece of link (11a, 11b), and wherein each link (18a, 18b) is hinged to one of the bars (22a, 22b) of the respective branch (14a, 14b).
    [0003]
    3. Device according to claim 1 or 2, wherein the connecting piece (11a, 11b) is formed in an upper portion (27a) and a lower portion (28a) pivotally mounted relative to each other around the a horizontal axis (Y1) perpendicular to the formwork faces of the panels (2a, 2b), in which the leg (14a, 14b) of the compass is hinged to the upper part (27a) of the connecting piece (11a, 11b) around an axis parallel to the formwork faces of the panels (2a, 2b) and wherein the base (30a) is part of the lower part (28a) of the connecting piece (11a, 11b).
    [0004]
    4. Device according to any one of claims 1 to 3, wherein the connecting piece (11a, 11b) has a stirrup shape, and comprises two bases (30a, 31a) spaced from one another along a horizontal axis parallel to the formwork faces of the panels (2a, 2b). 3032953 13
    [0005]
    5. Device according to any one of claims 1 to 4, wherein the formwork (2a, 2b) comprises a guide portion (38a, 40a) of the device for automatic gripping (3) in a vertical direction (Z) d assembly of the device for automatic gripping (3) and the formwork (2a, 2b). 5
    [0006]
    6. Device according to any one of claims 1 to 5, wherein the formwork (2a, 2b) comprises a fut (32a) adapted to receive the connecting piece (11a, 11b), and provided with an opening (34a ) through which the locking member (41a) extends to fix the automatic gripping device (3) to the box (2a, 2b). 10
    [0007]
    7. Device according to any one of claims 1 to 6 further comprising an automatic disengaging system (46a) comprising a actuator (47a) operable by a user and moving, when it is actuated, the locking member (41a) from its locking position to its free position against the biasing of the spring (42a), and maintaining it in this position. 15
    [0008]
    8. Device according to claim 7 further comprising an activation system (64a) of the automatic disconnection system (46a), adapted to pass the automatic disconnection system (46a) of a passive state in which it is not not operable in an active state in which it is actuable, automatically during assembly of the device for automatic gripping (3) in the box (2a, 2b). 20
    [0009]
    9. Formwork system comprising two panels (2a, 2b) arranged opposite each other, and an automatic gripping device (3) according to any one of claims 1 to 8, the device for automatic gripping (3 ) being attached to the panels (2a, 2b) by the automatic fixing system (29a).
    [0010]
    10. A method of manufacturing a formwork system comprising a device for automatic gripping 25 and banches in which - there are provided two panels (2a, 2b) vis-à-vis - is provided a device for gripping automatic machine (3) according to any one of claims 1 to 8, - it generates a relative movement of the device for automatic gripping (3) and banches (2a, 2b) to automatically fix the device for automatic gripping ( 3) to the panels (2a, 2b) by the automatic fixing system (29a).
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    同族专利:
    公开号 | 公开日
    FR3032953B1|2017-02-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2619800A1|1987-08-26|1989-03-03|Comptoir Batiment|Lifting beam for handling, particularly, containers of radio-active waste|
    FR2808041A1|2000-04-21|2001-10-26|Outinord St Amand|Connector for upper flanges of concrete shuttering has compass linkage with lower ends of arms pivoted on axis perpendicular to face of shuttering|
    EP1818479A1|2006-02-13|2007-08-15|Mesa Imalat Sanayii Ve Ticaret A.S.|Improved casing system for building or civil engineering works|
    EP1975339A1|2007-03-19|2008-10-01|Hussor |Device for stabilising and supporting form panels|
    EP2308790A1|2009-10-12|2011-04-13|Sateco|Device for lifting a load and assembly of two formwork devices connected by two such lifting devices|FR3104148A1|2019-12-04|2021-06-11|Outinord St Amand|Handling and lifting device for formwork shuttering|
    US9988823B1|2017-10-02|2018-06-05|General Steel And Supply Company|Concrete forming system|
    US10427916B1|2018-10-05|2019-10-01|Tgr Construction, Inc.|Structure installation system with vehicle having hangers to support a wall|
    US10633812B1|2019-06-25|2020-04-28|Tgr Construction, Inc.|Bollard wall gate system|
    US10633887B1|2019-08-29|2020-04-28|Tgr Construction, Inc.|Bollard setting and installation system|
    US11105116B1|2021-03-18|2021-08-31|Tgr Construction, Inc.|Bollard wall system|
    法律状态:
    2016-06-29| PLFP| Fee payment|Year of fee payment: 2 |
    2016-08-26| PLSC| Publication of the preliminary search report|Effective date: 20160826 |
    2017-01-27| PLFP| Fee payment|Year of fee payment: 3 |
    2017-12-28| PLFP| Fee payment|Year of fee payment: 4 |
    2018-12-28| PLFP| Fee payment|Year of fee payment: 5 |
    2019-12-27| PLFP| Fee payment|Year of fee payment: 6 |
    2020-12-29| PLFP| Fee payment|Year of fee payment: 7 |
    2021-12-17| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1551415A|FR3032953B1|2015-02-19|2015-02-19|DEVICE FOR LOAD PRETENSION, FORMWORK SYSTEM COMPRISING SUCH A DEVICE, AND MANUFACTURING METHOD.|FR1551415A| FR3032953B1|2015-02-19|2015-02-19|DEVICE FOR LOAD PRETENSION, FORMWORK SYSTEM COMPRISING SUCH A DEVICE, AND MANUFACTURING METHOD.|
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