Pinning device for joining two structural elements, particularly for a crane

Abstract

A broaching device (1) comprising: - a clevis (2) comprising two opposing plates (21, 22), each having a through-hole (213, 223) and defining a slot (23); - two support elements (3, 4) fixed to the outer faces (212, 222) of the two plates around their through-holes; and - a broaching rod (5) having two opposing ends (51, 52), and shaped to pass through the through-holes and the two support elements; the broaching device being configurable in: - two standby configurations in which one of the two ends of the broaching rod is locked onto one of the two support elements, without the rod being engaged in the slot; and - an assembly configuration in which the broaching rod is engaged in the slot and is locked onto the two support elements. (See abstract figure: Figure 2)

Description

Title of the invention: Pinning device for assembling two structural elements, in particular for a crane. Technical field

[0001] The invention relates to a pinning device for assembling a first structural element with a second structural element.

[0002] The invention also relates to a broaching method implemented by means of the broaching device.

[0003] The invention finds a favorite, and not limiting, application for the assembly of two structural elements of a crane, and in particular of a modular crane, a tower crane or a self-erecting crane, and in particular for the assembly of a rotating pivot and a jib holder of a tower crane. Previous technique

[0004] Cranes used on building and public works construction sites are known to comprise a mast at the top of which is mounted a rotating upper section, orientable about a vertical axis, which includes a jib and a counterweight jib used as a counterweight support. The rotating upper section usually has a pivot point surmounted by a jib bracket. The jib and counterweight jib are assembled on either side of the jib bracket.

[0005] One solution for assembling the arrow holder onto the rotating pivot involves using a broaching rod that passes completely through a yoke (also called a stirrup) and a tenon forming a complementary assembly element mounted in the yoke. Typically, a yoke comprises two plates extending parallel to each other, defining a slot to receive the tenon, and provided with through holes allowing the broaching rod to pass through.

[0006] However, broaching rods are particularly heavy components, sometimes weighing over 25 kg (and even up to 80 kg), making them difficult to lift and carry by one or more operators responsible for assembling and disassembling the crane, even if dedicated actuators are used to pull or push the broaching rod. The operations of inserting and removing the broaching rod are also not without risk for the operators.

[0007] Furthermore, in order to insert the broaching rod into the clevis and guide it through the holes in the two plates, the operators use tools such as, for example, weights or hydraulic jacks. Depending on the dimensions of the holes in the plates and the broaching rod, friction may occur. This can damage the broaching shank and the through-holes in the plates. In other words, the passage of the broaching shank inside the clevis leads to wear on the broaching shank and the through-holes in the plates.

[0008] There is therefore a constant need to implement in a simple and efficient way (for example by limiting the number of actions that the operator has to perform), but also in a safe way, an assembly and disassembly of a rotating pivot with a boom holder, and more broadly an assembly and disassembly of two structural elements. Summary of the invention

[0009] To this end, in order to meet the needs previously stated, the invention proposes a pinning device for assembling a first structural element with a second structural element, said pinning device comprising:

[0010] - a screed intended to be integral with the first structural element, said screed comprising two plates extending parallel to each other and defining a slot to receive a tenon integral with the second structural element, in which each of the two plates has an inner face defining the slot and an outer face opposite the inner face, and in which the two plates have respective through holes which are aligned;

[0011] - two support elements which are fixed to the respective outer faces of the two plates around their respective through-holes; and

[0012] - a broaching rod extending longitudinally along a longitudinal axis and having a first end and a second end opposite, said broaching rod being shaped to pass through the through holes of the two plates and to pass through the two support elements;

[0013] said pinning device being configurable in:

[0014] - a first waiting configuration in which the first end of the rod the broaching rod is carried and locked onto one of the two support elements, called the first support element, without the broaching rod being engaged inside the slot;

[0015] - an assembly configuration in which the broaching rod is engaged at the inside of the slot by passing through the two plates so that the first end of the broaching rod is carried and locked onto the other of the two support elements, called the second support element, and the second end is carried and locked onto the first support element;

[0016] - a second standby configuration in which the second end of the rod of The broaching is carried and locked onto the second support element, without the broaching rod being engaged inside the slot.

[0017] Subsequently, and unless otherwise indicated, when it is stated that the broaching device is in its first or second standby configuration, it is understood that the broaching rod is not engaged inside the slot of the clevis.

[0018] The pinning device is designed to switch to the assembly configuration from the initial standby configuration following: - unlocking the first end on the first support element; - an axial displacement of the broaching rod in a first direction of movement until the first end is engaged in the second support element and the second end is engaged in the first support element; and - a locking of the first end, respectively the second end, of the broaching rod onto the second support element, respectively the first support element.

[0019] The pinning device is designed to switch to the second standby configuration from the assembly configuration following: - unlocking of the first end, respectively the second end, of the pinning rod of the second support element, respectively the first support element; - an axial displacement of the broaching rod along the same initial direction of movement until the second end is engaged in the second support element (without the broaching rod being engaged in the slot); and - a locking of the second end of the broaching rod onto the second support element.

[0020] In order to assemble the first structural element with the second structural element, the tenon attached to the second structural element must be mounted / inserted into the slot of the clevis before the pinning device is tilted from its first waiting configuration to its assembly configuration.

[0021] When the first structural element and the second structural element are assembled, the disassembly of said first structural element and second structural element is made possible following: the tilting of the pinning device from the assembly configuration to the second waiting configuration; then the removal of the tenon attached to the second structural element from the slab.

[0022] The pinning device is also designed to return to the first standby configuration from the second standby configuration following: - unlocking of the second end of the pinning rod of the second support element; - an axial displacement of the broaching rod in a second direction of movement, opposite to the first direction of movement, until the first end is engaged in the first support element (without the broaching rod being engaged in the slot); and - a locking of the first end of the broaching rod onto the first support element.

[0023] A first advantage of the broaching device is to avoid the broaching rod needing to be lifted and handled by an operator or a lifting device for example, in order to assemble or disassemble the two structural elements.

[0024] For example, following the disassembly of the two structural elements, the broaching rod does not need to be removed from the broaching device. The broaching device can remain in its second standby configuration (with the cantilevered broaching rod locked onto the second support element; or be repositioned in its assembly configuration so as to be locked onto both support elements) or in its first standby configuration.

[0025] In other words, and advantageously, following disassembly, the broaching rod does not, for example, need to be removed and then carried and placed by one or more operators, because it remains in place on one and / or the other of the two support elements.

[0026] In connection with this first advantage, the first structural element can advantageously be transported / shipped with the broaching rod engaged in the broaching device in one of three configurations. In other words, the broaching rod does not need to be carried by one or more operators using only their arms.

[0027] Finally, an operator advantageously retains the ability to disassemble, in other words, remove, the broaching rod from the clevis by unlocking, when the broaching device is configured in the first standby configuration (respectively in the second standby configuration), the broaching rod from the first support element (respectively from the second support element). An operator may wish to remove the broaching rod from the broaching device in order, for example, to apply an anti-corrosion treatment to limit its wear.

[0028] A second advantage of the broaching device is that the operator can perform assembly and disassembly, i.e., switch the broaching device from the first standby configuration to the assembly configuration and then from the assembly configuration to the second standby configuration, by axially moving the broaching rod in the same first direction of movement, as previously described.

[0029] Thus, an operator can advantageously use the same tool or the same actuator to axially move the broaching rod and cause the two aforementioned configuration changes.

[0030] Furthermore, since the pinning device is configurable in two standby configurations (i.e. the first standby configuration and the second standby configuration) and the transition from one to the other involves a prior switch of the pinning device into its assembly configuration, the pinning rod can be engaged and then withdrawn from one side of the clevis (i.e. on the side of the first support element) as well as from the other side of the clevis (i.e. on the side of the second support element).

[0031] In other words, advantageously, the broaching rod can be entered from the inside or outside of the clevis, that is to say from either of the outer faces of the plates of the clevis.

[0032] Similarly, the broaching rod can advantageously be removed from the inside or outside of the clevis, that is to say from either of the outer faces of the clevis plates.

[0033] For example, in a first application context, when the broaching device is in the first standby configuration, the operator, in order to assemble the first structural element with the second structural element, can position himself at the level of the first support element and use, after unlocking the first end on the first support element, a mass or a hydraulic jack to axially push the broaching rod in order to engage it in the slot of the clevis and this until its first end reaches the second support element.Subsequently, in order to disassemble the two structural elements, the operator, after unlocking both ends on the two support elements, can continue to use his sledgehammer or hydraulic jack to axially move the broaching rod until its second end reaches the second support element (without the broaching rod being engaged in the slot).

[0034] In a second application context, the operator, in order to assemble the two structural elements, can position themselves at the second support element and, after unlocking the first end on the first support element, use a puller to pull the pinning rod towards them in order to engage it in the slot of the clevis until its first end reaches the second support element. In this second application context, the pinning rod may include a hooking device, such as a hook, designed to attach to the puller; such a hooking device may be fixedly or removably mounted on this pinning rod.

[0035] In order to return the pinning device to its first standby configuration from its second standby configuration, the operator can: - In the first usage context, position yourself at the level of the second support element and use your mass or hydraulic jack to axially push the broaching rod until the first end reaches the first support element, without the broaching rod being engaged in the slot; or - in the second context of use, position yourself at the level of the first support element and use a puller to pull the broaching rod towards it until the first end reaches the first support element and without the broaching rod being engaged in the slot.

[0036] In these two examples of use context, the broaching rod is moved in a second direction of movement opposite to the first direction of movement.

[0037] By allowing the operator to switch the pinning device between its configurations by standing on one side of it, and by eliminating the need to handle the pinning rod itself as previously explained, the pinning device advantageously limits operator movement and complex handling in hazardous areas, restricting these movements, for example, to locking / unlocking the end(s) of the pinning rod when switching configurations. This is the case, for instance, in the crane industry, where operators often have to assemble and disassemble structural elements while standing on platforms suspended above a void (which may be attached to the mast or supported by lifting equipment).

[0038] Thus, the pinning device allows for the simple, efficient, and secure assembly and disassembly of two structural elements.

[0039] According to one embodiment of the invention, the broaching device comprises a first pin removably mounted in a first radial hole provided on the first end of the broaching rod, and a second pin removably mounted in a second radial hole provided on the second end of the broaching rod, and each of the two support elements comprises two diametrically opposed slots adapted to be traversed by the first pin or by the second pin, such that: - in the first waiting configuration, the first pin passes through both the lights of the first support element and the first radial hole, axially locking and rotationally limiting the broaching rod on the first support element; - in the assembly configuration, the first pin passes through both the two slots of the second support element and the first radial hole, and the second pin passes through both the two slots of the first support element and the second radial hole, axially locking and rotationally limiting the broaching rod on the first support element and on the second support element; - in the second waiting configuration, the second pin passes through both the two lights of the second support element and the second radial hole, axially locking and limiting the rotation of the broaching rod on the second support element.

[0040] Advantageously, the invention implements a simple and efficient locking of the ends of the broaching rod on the support elements of the broaching device regardless of the configuration in which the latter is found; which locking on the pins mounted removably in the radial holes provided on the ends of the broaching rod, and the two diametrically opposed slots which comprise the two support elements and which are suitable for the pins to pass through.

[0041] When the broaching rod is locked onto one of the support elements (in standby configurations), or onto both (in the assembly configuration), it is not possible to move it axially, at least within the mounting clearance, and moreover it is limited in rotation, or even blocked in rotation depending on the shape of the slots.

[0042] In other words, and advantageously, in the first waiting configuration (respectively in the second waiting configuration), the passage of the first pin (respectively the second pin) through both slots in the first support element (respectively the second support element) and the first radial hole (respectively the second radial hole) makes it possible to block the pin's translation and limit its rotation within the first support element (respectively the second support element). Consequently, the pin cannot advantageously exit the first support element (respectively the second support element) in the first waiting configuration (respectively in the second waiting configuration).

[0043] Similarly, and advantageously, in the assembly configuration, the passage of the first pin through both slots in the second support element and the first radial hole, and the passage of the second pin through both slots in the first support element and the second radial hole, allows, in the assembly configuration, the pinning rod to be blocked in translation and limited in rotation within the first and second support elements. Consequently, the pinning rod cannot advantageously exit the first support element and the second support element when the pinning device is in its assembly configuration.

[0044] Since the broaching rod is fixed in translation and limited in rotation in the first and / or second support element regardless of the broaching device configuration, and since the broaching rod is designed to be fitted tightly in the support elements, friction between the broaching rod and the through-holes in the clevis plates is advantageously and significantly reduced. Consequently, the risk of wear on the broaching rod and the plates at the through-holes is significantly reduced.

[0045] In one embodiment, the first end of the broaching rod has the first radial hole and has another first radial hole also suitable for being passed through by the first pin, and the second end of the broaching rod has the second radial hole and has another second radial hole also suitable for being passed through by the second pin.

[0046] Depending on the means / tool ​​used by an operator to axially move the broaching rod in the first or second direction of travel, in order to switch the broaching device from one configuration to another, it is possible that the broaching rod will rotate on its own axis before being engaged in at least one of the first and second support elements. By providing another radial hole on each end of the broaching rod, it is very likely that one or the other of the two radial holes will be aligned with the corresponding slots to allow the passage of the corresponding pin.

[0047] In one embodiment of the invention the first radial hole and the other first radial hole are perpendicular, and the second radial hole and the other second radial hole are perpendicular.

[0048] This configuration with two perpendicular radial holes is advantageous for ensuring the alignment of a radial hole with the light for mounting the pin concerned.

[0049] In one embodiment of the invention, the two respective lights of the two support elements are oblong.

[0050] Such oblong lights offer an advantageous angular clearance to ensure the alignment of a radial hole with the light for mounting the pin concerned.

[0051] According to one embodiment of the invention, the two support elements are tubular in shape.

[0052] According to one embodiment of the invention, the two support elements each have a collar fixed by screwing or bolting onto the respective outer faces of the two plates.

[0053] According to one embodiment of the invention, the broaching rod is cylindrical in shape and the two support elements have complementary bearings in which the broaching rod is mounted in a fit-and-play manner in the assembly configuration.

[0054] The additional bearings have a bearing diameter which is substantially greater than the diameter of the broaching rod (called rod diameter), that is to say that the broaching rod is mounted with a mounting clearance inside the additional bearings so as to facilitate the insertion of the broaching rod 5 into the support elements and to ensure the axial guidance of the latter inside the through holes.

[0055] Thus, in addition to the locking, the additional bearings contribute advantageously to the retention / fixing of the first end and the second end of the broaching rod respectively in the second support element and the first support element in the assembly configuration.

[0056] Also, the additional bearings contribute advantageously to the retention / fixation: of the first end of the broaching rod in the first support element in the first waiting configuration; and of the second end of the broaching rod in the second support element in the second waiting configuration.

[0057] The invention also relates to an assembly comprising a first structural element and a second structural element assembled by means of a pinning device as previously described, in which the clevis is integral with the first structural element and the second structural element comprises a tenon inserted in the slot of the clevis and provided with an assembly hole in alignment with the holes through the two plates, and in which the pinning device is in its assembly configuration with the pinning rod which passes through said assembly hole.

[0058] According to one embodiment, the first structural element and the second structural element correspond to structural elements of a crane.

[0059] In other words, the pinning device advantageously allows, in a simple, efficient, and secure way, the assembly of two structural elements of a crane.

[0060] According to one embodiment, one of the first structural element and the second structural element corresponds to a rotating pivot, and the other of the first structural element and the second structural element corresponds to a boom support.

[0061] In other words, the pinning device advantageously allows, in a simple, efficient, and secure manner, the assembly of a rotating pivot and a boom holder of a crane.

[0062] The invention finally relates to an assembly / disassembly method for assembling / disassembling a first structural element and a second structural element by means of a pinning device as described above, comprising the following steps: - before assembly, position the pinning device in its first standby configuration; - to mount a tenon, attached to the second structural element, in the slot of the slab, said tenon being provided with an assembly hole in alignment with the through holes of the two plates; - after axially moving the broaching rod in a direction of movement, position the broaching device in its assembly configuration with the broaching rod passing through said assembly hole, so that the first structural element and the second structural element are assembled; - before disassembly, after axially moving the broaching rod in the direction of movement, position the broaching device in the second standby configuration; - remove the tenon, attached to the second structural element, from the slot in the screed so that the first structural element and the second structural element are disassembled.

[0063] The assembly / disassembly process therefore includes steps for switching the broaching device from its first standby configuration to its assembly configuration, and from its assembly configuration to its second standby configuration. For these switches and the positioning of the broaching device in each configuration, the broaching process includes steps for locking at least one of the two ends of the broaching rod for positioning in one of the three configurations, and steps for unlocking at least one of the two ends to allow axial movement of the broaching rod.

[0064] In one embodiment, the assembly / disassembly process includes, after the tenon removal step, and after an axial displacement of the broaching rod in a second direction of movement opposite to the (first) direction of movement, a step of positioning the broaching device in its first waiting configuration. Brief description of the drawings

[0065] Other features and advantages of the present invention will become apparent from the following detailed description of a non-limiting example of implementation, made with reference to the accompanying figures in which:

[0066] [Fig.2] is a schematic view of a crane for which the pinning device of the invention is used;

[0067] [Fig-2] presents two schematic perspective views of the pinning device when it is positioned in its first waiting configuration, with the clevis of the solar pinning device of a first structural element corresponding to the pivoting mast of a crane;

[0068] [Fig.3] presents two schematic perspective views of the pinning device when it is positioned in its assembly configuration;

[0069] [Fig.4] presents a schematic perspective view of the pinning device when it is in / is positioned in its second standby configuration;

[0070] [Fig.5] is a schematic profile view of the broaching device in its first standby configuration, and for which is shown the insertion of a tenon in the slot of the clevis of the broaching device, which tenon is integral with a second structural element which corresponds to a boom holder;

[0071] [Fig.6] is a schematic profile view of the broaching device in its assembly configuration, with the first frame element and the second frame element being assembled;

[0072] [Fig.7] is a schematic profile view of the broaching device in its second standby configuration, with the tenon of the second structural element still inserted in the slot of the broaching device's clevis.

[0073] [Detailed description of one or more embodiments of the invention]

[0074] The pinning device 1 of the invention is designed for the assembly and disassembly of a first structural element E1 with a second structural element E2. The design of the pinning device 1 presented below is given in an illustrative and non-limiting manner.

[0075] Also, the pinning device 1 is applicable in a plurality of fields of activity. In the following description, it is assumed that the pinning device is used in the assembly and disassembly of a crane 100, for example, a 100 crane with a distributing jib as illustrated [Fig. 1]. More specifically, the pinning device 1 is used for the assembly and disassembly of the rotating pivot 101, which corresponds to the first structural element E1, with the jib holder 102, which corresponds to the second structural element E2, of the crane 100.

[0076] Generally, cranes comprise a mast 103 at the top of which is mounted a rotating upper section, orientable about a vertical axis A1, which includes a boom 104 and a counter-jib 105 used as a support for counterweights and / or equipment such as winches. The rotating upper section usually has a swiveling pivot 101 surmounted by a boom carrier 102 with tie rods 106. The boom 104 and the counter-jib 105 are assembled on either side of the boom carrier. 102. The crane operator's cabin 107 can be attached to the rotating pivot 101 of the crane. The base of the mast 103 can be placed on a chassis 108 which can, for example, be fixed / placed on the ground, or mounted on a running gear which includes tracks or bogies.

[0077] With reference to Figures 2 to Figures 4, the broaching device 1 comprises a broaching rod 5 extending longitudinally along a longitudinal axis and having a first end 51 and a second end 52 at opposite ends. The broaching rod 5 may, for example, and as illustrated in the various figures, be cylindrical in shape and have a rod diameter.

[0078] The broaching device also includes a clevis 2 intended to be integral with the first structural element E1 (i.e., the rotating pivot 101), which comprises two plates 21, 22 extending parallel to each other and defining a slot 23 intended to receive a tenon 109 integral with the second structural element E2. Each of the two plates 21, 22 has: an inner face 211, 221 defining the slot 23 and an outer face 212, 222 opposite the inner face 211, 221, as well as a through hole 213, 223. The through holes 213, 223 of the plates 21, 22 are circular in shape and both have an orifice diameter. They are also formed in the two plates 21, 22 so as to be aligned.

[0079] The broaching device also includes two support elements 3, 4, each comprising a collar 32, 42 fixed, for example by screwing or bolting, to the respective outer faces 212, 222 of the two plates 21, 22. The two collars 32, 42 have an internal diameter substantially larger than the hole diameter. The collars 32, 42 (and therefore the support elements 3, 4) are fixed to the respective outer faces 212, 222 of the two plates 21, 22 around their respective through holes 213, 223.

[0080] The broaching rod 5 is shaped to pass through the holes 213, 223 of the two plates 21, 22 and through the two support elements 3, 4. For this purpose, the diameter of the rod of the broaching rod 5 therefore corresponds to the diameter of the holes through 213, 223.

[0081] The pinning device 1 is configurable in:

[0082] - a first standby configuration, illustrated [Fig.2], in which the first end 51 of the broaching rod 5 is carried and locked onto one of the two support elements 3, 4, called first support element 3, without the broaching rod 5 being engaged inside the slot 23;

[0083] - an assembly configuration, illustrated [Fig.3], in which the pinning rod 5 is engaged inside the slot 23 by passing through the two plates 21, 22 so that the first end 51 of the broaching rod 5 is carried and locked onto the other of the two support elements 3,4, called second support element 4, and the second end 52 is carried and locked onto the first support element 3; - a second waiting configuration, illustrated [Fig.4], in which the second end 52 of the broaching rod 5 is carried and locked onto the second support element 4, without the broaching rod 5 being engaged inside the slot 23.

[0084] In one embodiment, the support elements 3, 4 are provided to be mounted removably on the outer faces 212, 222 of the plates 21, 22; for example, to allow the clevis 2 to be treated against corrosion when the support elements 3, 4 are removed.

[0085] With reference to the same three [Fig.2] to 4, a first radial hole 55 and a second radial hole 56 are drilled respectively at the first end 51 and the second end of the broaching rod 5. The first radial hole 55 and the second radial hole 56 are drilled along a drilling axis which is perpendicular to the longitudinal axis of the broaching rod 5.

[0086] The first radial hole 55 and the second radial hole 56 are provided to be passed through respectively by a first pin 53 and a second pin 54 which can be removably mounted on the broaching rod 5. Each of the two support elements 3, 4 comprises two diametrically opposed slots 31, 41. The slots 31, 41 are arranged such that once the first end 51 or the second end 52 is engaged in the first support element 3 or the second support element 4, the slots 31, 41 make the first radial hole 55 and / or the second radial hole 56 accessible to an operator; which can then pass the first pin 53 and the second pin 54 through the slots 31, 41 and the radial holes 55, 56 of the ends of the broaching rod 5, and then lock the latter on one or both of the support elements 3, 4 with one or both of the pins 53, 54.

[0087] Thus, in the first waiting configuration, the first pin 53 passes through both the two slots 31 of the first support element 3 and the first radial hole 55, thus axially locking the broaching rod 5 onto the first support element 3.

[0088] In the assembly configuration, the first pin 53 passes through both the two slots 41 of the second support element 4 and the first radial hole 55, and the second pin 52 passes through both the two slots 31 of the first support element 3 and the second radial hole 56, thus axially locking the broaching rod 5 on the first support element 3 and on the second support element 4.

[0089] Finally, in the second waiting configuration, the second pin 52 passes through both the two slots 41 of the second support element 4 and the second radial hole 56, thus axially locking the broaching rod 5 onto the second support element 4.

[0090] Depending on the means / tool ​​used by an operator to axially move the broaching rod 5 in the first or second direction of travel, in order to switch the broaching device 1 from one configuration to another, it is possible that the broaching rod 5 may rotate about itself before being engaged in at least one of the first support element 3 and the second support element 4. In the case where the first end 51 and the second end 52 each have only one radial hole 55 and a second radial hole 56, respectively, it is possible that at least one of the first radial hole 55 and the second radial hole 56 may not be aligned (i.e., opposite) with the slots 31, 41 of at least one of the first support element 3 and the second support element 4, thus preventing the mounting of at least one of the first pin. 53 and the second pin 54.

[0091] In one embodiment, and as illustrated in [Fig.2] to 4, it is conceivable to drill a radial hole 55 and another first radial hole 55' at the first end 51 of the broaching rod 5; and a second radial hole 56 and another second radial hole 56' at the second end 52 of the broaching rod 5. It will then be very likely that one or the other of the two radial holes 55, 55', 56, 56' will be opposite the corresponding slots 31, 41 to allow the passage of the corresponding pin 53, 54.

[0092] According to one example, it is conceivable that the first radial hole 55 is perpendicular to the other first radial hole 55', and that the second radial hole 56 is perpendicular to the other second radial hole 56'. This configuration with two perpendicular radial holes 55, 55', 56, 56' is advantageous for ensuring the alignment of a radial hole 55, 55', 56, 56' with a slot 31, 41 for mounting the pin 53, 54 concerned.

[0093] To ensure the alignment of a radial hole 55, 55', 56, 56' with each of the slots 31, 41 for mounting the pin 53, 54 concerned, the two slots 31, 41 may for example have an oblong shape.

[0094] When the broaching rod 5 is locked onto one or both of the support elements 3, 4, it is rendered impossible to move it axially. The broaching rod 5 is also limited in rotation within the two support elements 3, 4. For example, as illustrated [Fig. 2] to 4, the first pin 53 and the second pin 54 are both of a length such that once one or both are inserted into the first radial hole 55 and the second radial hole 56, it or they come to rest against the slots 31, 41 of the first support element 3 and / or the second support element 4 when an operator attempts to move the broaching rod 5 axially.

[0095] In other words, and advantageously, in the first waiting configuration (respectively in the second waiting configuration), the passage of the first pin 53 (respectively the second pin 54) through both the slots 31 and 41 of the first support element 3 (respectively the second support element 4) and the first radial hole 55 (respectively the second radial hole 56) allows the pinning rod 5 to be blocked in translation and its rotation limited within the first support element 3 (respectively the second support element 4). Consequently, the pinning rod 5 cannot advantageously exit the first support element 3 (respectively the second support element 4) in the first waiting configuration (respectively in the second waiting configuration).

[0096] Similarly, and advantageously, in the assembly configuration, the passage of the first pin 53 through both the slots 41 of the second support element 4 and the first radial hole 55, and the passage of the second pin 54 through both the slots 31 of the first support element 3 and the second radial hole 56, allows, in the assembly configuration, the pinning rod 5 to be blocked in translation and limited in rotation within the first support element 3 and the second support element 4. Consequently, the pinning rod 5 cannot advantageously exit the first support element 3 and the second support element 4 when the pinning device 1 is in its assembly configuration.

[0097] In order for the broaching rod 5 (more precisely its two ends 51, 52) to be mounted in a tight fit in the broaching device 1 in each of its configurations, the first support element 3 and the second support element 4 can both include an additional bearing 33, 43 in which the broaching rod 5 can be engaged.

[0098] The additional bearings 33, 43 have a bearing diameter which is substantially greater than the diameter of the rod of the broaching rod 5, that is to say that the broaching rod 5 is mounted with a mounting clearance inside the additional bearings 33, 34, so as to facilitate the insertion of the broaching rod 5 into the support elements 3, 4 and to ensure the axial guidance of the latter inside the through holes 213, 223.

[0099] Since the broaching rod 5 is fixed in translation and limited in rotation in the first support element 3 and / or the second support element 4, regardless of the configuration of the broaching device 1, and since it is mounted with a tight fit in the support elements 3, 4, the friction between the broaching rod 5 and the through holes 213, 223 in the plates 21, 22 of the yoke 2 is advantageously significantly reduced. Consequently, the risk of wear on the broaching rod 5 and the plates 21, 22 at the through holes 213, 223 is significantly reduced.

[0100] When the pinning device 1 is in its initial standby configuration, it is intended to switch to its assembly configuration following: - unlocking and removing the first pin 53, leading to unlocking the first end 51 on the first support element 3;

[0101] - axial displacement of the broaching rod 5 in a first direction of movement until the first end 51 is engaged in the second support element 4 and the second end 52 is engaged in the first support element 3;

[0102] - an insertion of the first pin 53 (respectively of the second pin 54) in the first radial hole 55 (respectively the second radial hole 56); and - locking of the first pin 53 (respectively of the second pin 54) onto the first end 51 (respectively the second end 52), leading to locking of the first end 51 (respectively the second end 52) onto the second support element 4 (respectively the first support element 3).

[0103] The pinning device 1 is also provided to switch from the assembly configuration to the second standby configuration following:

[0104] - unlocking and removing the first pin 53 and the second pin 54, leading to an unlocking of the first end 51 and the second end 2 respectively on the second support element 4 and first support element 3; - an axial displacement of the broaching rod 5 along the first direction of movement until the second end 52 is engaged in the second support element 4 (without the broaching rod 5 being engaged in the slot 23); and - a locking of the second pin 54 on the second end 52, leading to a locking of the second end 52 on the second support element 4.

[0105] With reference to Figures 5 to 7, in order to proceed with the assembly of the first structural element El (i.e. the rotating pivot 101) with the second structural element E2 (i.e. the boom holder 102), the tenon 109 integral with the second structural element E2 is first slid into the slot 23 of the clevis 2 when the pinning device 1 is in its first waiting configuration. The tenon 109 has an assembly hole 100 at least of the same diameter as the through holes 213, 223 and the shank diameter of the broaching shank 5. The tenon 109 is slid into the slot 23 so that its assembly hole 110 is aligned with the through holes 213, 223.

[0106] The pinning device 1 is then switched from its initial standby configuration to its assembly configuration. During its axial movement in the first direction, the pinning rod 5 passes through the through holes 213, 223 of the plates 21, 22 of the clevis 2, as well as the assembly hole 110 of the tenon 109. The first structural element El is assembled with the second structural element E2 once the pinning device 1 is positioned in its assembly configuration, with the first end 51 and the second end 52 of the pinning rod 5 respectively locked onto the second support element 4 and the first support element 3.

[0107] In order to disassemble the first structural element E1 from the second structural element E2, the pinning device 1 is tilted from its assembly configuration to its second standby configuration. Once the pinning device 1 is positioned in its second assembly configuration, and since the second end 52 of the pinning rod is not engaged in the slot 23 and consequently in the assembly hole 110 of the tenon 109, the tenon 109 can be removed from the slot 23.

[0108] After disassembly, the broaching device 1 is designed to return to its first standby configuration from its second standby configuration. To achieve this, the second end 52 is unlocked from the second support element, and then an axial movement of the broaching rod 5 is implemented in a second direction of movement, which is opposite to the first direction of movement, until the first end 51 of the broaching rod 5 is housed in the first support element 3, without the broaching rod being engaged in the slot 23. Finally, the first end 51 of the broaching rod 5 is locked in the first support element 3, the broaching device 1 then being positioned in its first standby configuration.

[0109] Since the pinning device 1 can return to its first standby configuration from its second standby configuration, it is able to switch from its second standby configuration to its assembly configuration, and then from its assembly configuration back to its first standby configuration.

[0110] Regardless of the configuration in which the pinning device 1 is positioned, at least one of the two ends 51, 52 of the pinning rod 5 is carried and locked in at least one of the two support elements 3, 4.

[0111] Thus, and advantageously, an operator does not have to handle the broaching rod 5 itself during the assembly or disassembly of the rotating pivot 101 and the boom holder, and more generally between the first structural element El and the second structural element E2.

[0112] In other words, and advantageously, when assembling or disassembling the rotating pivot 101 and the boom holder, an operator is not obliged to lift the broaching rod 5, carry it by the strength of the arms, put it down, etc.

[0113] Generally, to assemble a rotating pivot 101 with a boom holder 12, the operator(s) stand, or even move, on suspended platforms 300 which can, for example: be fixed to the rotating pivot 101 (as illustrated in the Figures 5 to 7); or held, raised and lowered by lifting equipment. Depending on the steps involved in assembling and disassembling these two crane elements 100, the operator(s) may need to use a variety of tools and / or actuators, and may have to move around on the platform 300 to perform risky operations that compromise their safety.

[0114] Advantageously, the switching of the broaching device 1 from its first standby configuration to its assembly configuration, and from its assembly configuration to its second standby configuration, with axial displacement of the broaching rod 5 in the same first direction of movement, makes it possible to limit: the number of risky manipulations, the movements of an operator on a platform 300, and the number of tools or actuators to be used for assembly or disassembly.

[0115] Since the pinning device 1 is configurable in two standby configurations (i.e. the first standby configuration and the second standby configuration) and the transition from one to the other involves a prior switch of the pinning device 1 into its assembly configuration, the pinning rod 5 can be engaged and then withdrawn from one side of the clevis 2 (i.e. on the side of the first support element 3) as well as from the other side of the clevis 2 (i.e. on the side of the second support element 4).

[0116] In other words, advantageously, the broaching rod 5 can be entered from the inside or outside of the clevis 2, that is to say from either of the outer faces 212, 222 of the plates 21, 22 of the clevis 2.

[0117] Similarly, the broaching rod 5 can advantageously be removed from the inside or outside of the clevis 2, that is to say from either of the outer faces 212, 222 of the plates 21, 22 of the clevis 2.

[0118] With reference to [Fig. 5] to [Fig. 7], where a platform 300 is fixed to the rotating pivot 101, an operator can, for example, position themselves at the first support element 3 and use an actuator, for example a hydraulic cylinder, to axially push the broaching rod 5 in the first direction of travel during the switching of the broaching device 1 between its first standby configuration and its assembly configuration, and between its assembly configuration and its second standby configuration. Alternatively, when the broaching rod 5 is cylindrical as in this description, the operator can, for example, use a hammer to strike the base of the broaching rod 5 located at the second end 52.

[0119] Conversely, to implement these two tilting operations, the operator can also, for example, position themselves at the level of the second support element 4, and slide a pull wire into the holes passing through 213, 223, which will then hook onto a The locking element 47, for example a hook, which includes the broaching rod 5, allows it to pull the broaching rod 5 axially in the first direction of movement. Thus, in this application context, the operator's movements on the platform can be limited to inserting the first pin 53 and / or the second pin 54 into the radial holes 55, 56 and then locking them, or unlocking and then removing the radial holes 55, 56.

[0120] The pinning device 1 of the invention therefore makes it possible to implement in a simple, efficient, and secure manner the assembly and disassembly of a rotating pivot 101 and an arrow holder 102, or more generally of a first structural element El with a second structural element E2.

[0121] Although the present invention has been described with reference to specific embodiments, it is evident that modifications and changes can be made to these examples without departing from the general scope of the invention as defined by the claims. In particular, individual features of the various embodiments illustrated / mentioned can be combined in additional embodiments. Therefore, the description and drawings should be considered in an illustrative rather than a restrictive sense.

[0122] It is also evident that all the characteristics described with reference to a process are transposable, alone or in combination, to a device, and conversely, all the characteristics described with reference to a device are transposable, alone or in combination, to a process.

Claims

1. Demands A pinning device (1) for joining a first structural element (E1) with a second structural element (E2), said pinning device (1) comprising: - a slab (2) intended to be integral with the first structural element (E1), said slab (2) comprising two plates (21, 22) extending parallel to each other and defining a slot (23) to receive a tenon (109) integral with the second structural element (E2), in which each of the two plates (21, 22) has an inner face (211, 221) defining the slot (23) and an outer face (212, 222) opposite the inner face (211, 221), and in which the two plates (21, 22) have respective through holes (213, 223) which are aligned; - two support elements (3, 4) which are fixed to the respective outer faces (212, 222) of the two plates (21, 22) around their respective through-holes (213, 223); and - a broaching rod (5) extending longitudinally along a longitudinal axis and having a first end (51) and a second end (52) opposite, said broaching rod (5) being shaped to pass through the through holes (213, 223) of the two plates (21, 22) and to pass through the two support elements (3,4); said pinning device (1) being configurable in: - a first waiting configuration in which the first end (51) of the broaching rod (5) is carried and locked onto one of the two support elements (3, 4), called the first support element (3), without the broaching rod (5) being engaged inside the slot (23); - an assembly configuration in which the broaching rod (5) is engaged inside the slot (23) by passing through the two plates (21, 22) so that the first end (51) of the broaching rod (5) is carried and locked onto the other of the two support elements (3,4), called the second support element (4), and the second end (52) is carried and locked onto the first support element (3); - a second standby configuration in which the second end (52) of the broaching rod (5) is carried and locked onto the second support element (4), without the broaching rod (5) being engaged inside the slot (23).

2. A broaching device (1) according to claim 1, comprising a first pin (53) removably mounted in a first radial hole (55) provided on the first end (51) of the broaching rod (5), and a second pin (54) removably mounted in a second radial hole (56) provided on the second end (52) of the broaching rod (5), and each of the two support elements (3, 4) comprising two diametrically opposed slots (31, 41) adapted to be traversed by the first pin (53) or by the second pin (54), such that: - in the first standby configuration, the first pin (53) passes through both the two slots (31) of the first support element (3) and the first radial hole (55), axially locking and rotationally limiting the broaching rod (5) on the first support element (3);- in the assembly configuration, the first pin (53) passes through both the two slots (41) of the second support element (4) and the first radial hole (55), and the second pin (52) passes through both the two slots (31) of the first support element (3) and the second radial hole (56), axially locking and limiting the rotation of the broaching rod (5) on the first support element (3) and on the second support element (4); - in the second standby configuration, the second pin (52) passes through both the two slots (41) of the second support element (4) and the second radial hole (56), axially locking and limiting the rotation of the broaching rod (5) on the second support element (4).

3. Pinning device (1) according to claim 2, wherein the first end (51) of the pinning rod (5) has the first radial hole (55) and has another first radial hole (55') also suitable for being passed through by the first pin (53), and the second end (52) of the pinning rod (5) has the second radial hole (56) and has another second radial hole (56') also suitable for being passed through by the second pin (54).

4. Pinning device (1) according to claim 3, wherein the first radial hole (55) and the other first radial hole (55') are perpendicular, and the second radial hole (56) and the other second radial hole (56') are perpendicular.

5. Pinning device (1) according to any one of claims 2 to 4, wherein the two respective lights (31, 41) of the two support elements (3, 4) are oblong.

6. Pinning device (1) according to any one of the preceding claims, wherein the two support elements (3, 4) are tubular in shape.

7. Pinning device (1) according to any one of the preceding claims, wherein the two support elements (3, 4) each have a collar (32, 42) fixed by screwing or bolting to the respective outer faces (212, 222) of the two plates (21, 22).

8. A broaching device (1) according to any one of the preceding claims, wherein the broaching rod (5) is cylindrical in shape and the two support elements (3, 4) have complementary bearings (33, 43) in which the broaching rod (5) is mounted in a fit-with-clearance manner in the assembly configuration.

9. Assembly comprising a first structural element (El) and a second structural element (E2) assembled by means of a pinning device (1) according to any one of the preceding claims, wherein the clevis (2) is integral with the first structural element (El) and the second structural element (E2) comprises a tenon (109) inserted into the slot (23) of the clevis (2) and provided with an assembly hole (110) in alignment with the through holes (213, 223) of the two plates (21, 22), and wherein the pinning device (1) is in its assembly configuration with the pinning rod (5) which passes through said assembly hole (110).

10. Assembly according to claim 9, wherein the first structural element (El) and the second structural element (E2) correspond to structural elements of a crane (100).

11. Assembly according to claim 10, wherein one of the first structural element (El) and the second structural element (E2) corresponds to a rotating pivot (101), and the other of the first structural element (El) and the second structural element (E2) corresponds to a boom holder (102).

12. Assembly / disassembly method for assembling / disassembling a first structural element (E1) and a second structural element (E2) by means of a pinning device (1) according to any one of claims 1 to 8, including the following steps: - before assembly, position the pinning device (1) in its first standby configuration; - mount a tenon (109), attached to the second structural element (E2), in the slot (23) of the cleat (2), said tenon (109) being provided with an assembly hole (110) in alignment with the through holes (213, 223) of the two plates (21, 22); - after axially moving the broaching rod (5) in a direction of movement, position the broaching device (1) in its assembly configuration with the broaching rod (5) which passes through said assembly orifice (110), so that the first structural element (El) and the second structural element (E2) are assembled; - before disassembly, after axially moving the broaching rod (5) in the direction of movement, position the broaching device (1) in the second standby configuration; - remove the tenon (109), attached to the second structural element (E2), from the slot (23) of the sash (2) so that the first structural element (El) and the second structural element (E2) are disassembled.