Accessory for a screwing and / or unscrewing device for railway track fasteners

Abstract

An accessory (100) for a screwing and / or unscrewing device (200) for a railway fastener comprises a handling handle (101), a control member (102) and a supporting structure (104) integral with the handling handle (101) and the control member (102). The screwing and / or unscrewing device (200) comprises a gripping member (201) and a control actuator for controlling a function of the screwing and / or unscrewing device (200). The accessory (100) comprises a coupling system (105) configured to allow the screwing and / or unscrewing device (200) to be assembled in a removable manner to the supporting structure (104) and to ensure, in an assembled configuration of the screwing and / or unscrewing device (200) to the supporting structure (104), vibration decoupling between the handling handle (101) and the gripping member (201). Figure to be published with the abstract: Fig. 3

Description

Title of the invention: Accessory for a screwing and / or unscrewing device for a railway track fastener Technical field of the invention

[0001] The technical field of the invention relates to the screwing and / or unscrewing of a railway track fastener(s). More particularly, the invention relates to an accessory for a screwing and / or unscrewing device for a railway track fastener. State of the prior art

[0002] A railway track conventionally comprises two rails connected to each other by sleepers staggered along the length of the rails. The rails are fixed to the sleepers via fasteners. Each of the two rails may be formed from a plurality of rail portions fixed to each other, two consecutive rail portions may be fixed to each other via a fishplate and fasteners fixing the fishplate to said two rail portions.

[0003] The fasteners can be screwed and / or unscrewed using a screwing and / or unscrewing device, for example of the impact wrench type, manipulated by an operator. The vibrations from such a screwing and / or unscrewing device are harmful to the operator and can cause musculoskeletal disorders in the latter.

[0004] There is a need to improve operator safety by efficiently limiting the vibrations perceived by this operator when using the screwing and / or unscrewing device. Subject of the invention

[0005] The object of the present invention is to improve the use of a screwing and / or unscrewing device for a railway track fastener, in particular to improve the safety of an operator.

[0006] For this purpose, the invention relates to an accessory for the screwing and / or unscrewing device for railway track attachment, the screwing and / or unscrewing device comprising: • a gripping organ; • a control actuator for controlling a function of the screwing and / or unscrewing device; the accessory including: • a handling handle; • a control body; • a coupling device connected to the control member and configured to be connected to the screwing and / or unscrewing device to propagate a actuation of the control member to the screwing and / or unscrewing device; • a supporting structure secured to the operating handle and the control member; • a coupling system configured to allow the screwing and / or unscrewing device to be assembled in a removable manner to the supporting structure and to ensure, in an assembled configuration of the screwing and / or unscrewing device to the supporting structure, vibration decoupling between the handling handle and the gripping member.

[0007] Such an accessory has the advantage of being mounted on the screwing and / or unscrewing device via the decoupling system in order to ensure vibration decoupling between the supporting structure and the handling handle. Thus, the operator no longer needs to: • to act on the gripping member to manipulate the screwing and / or unscrewing device which is manipulated, at least in part, via the accessory; • to act directly and manually on the control actuator to control the function; as a result, the use of the screwing and / or unscrewing device via the accessory is more relaxing for the operator and helps to limit musculoskeletal disorders.

[0008] The accessory may further comprise one or more of the following features.

[0009] According to a characteristic of the accessory, the coupling device is configured so that, when said coupling device is connected to the screwing and / or unscrewing device: • mechanically propagate the actuation of the control member to the control actuator; or • allow propagation of an electrical control signal, when the control member is actuated, directly to the screwing and / or unscrewing device; or • propagate, when the control member is actuated, an electrical control signal generated by the accessory to an actuating device configured to ensure mechanical actuation of the control actuator following reception of the electrical control signal by said actuating device, the coupling device comprising the actuating device; or • propagate a radio actuation signal generated by the accessory, when the control member is actuated, directly to the screwing and / or unscrewing device; • propagate a radio actuation signal generated by the accessory, when the control member is actuation, to an actuation device configured to ensure mechanical actuation of the control actuator following reception of the electrical actuation signal by said actuation device, the coupling device comprising the actuation device.

[0010] These different means of propagating the actuation of the control member are particularly suitable in the sense that they limit the feeling of vibrations by the operator at the level of the control member.

[0011] According to a characteristic of the accessory, the coupling system comprises a clamping flange configured to, in the assembled configuration, grip the screwing and / or unscrewing device.

[0012] This makes it possible to clamp the screwing and / or unscrewing device and therefore to participate in its effective maintenance relative to the supporting structure in the assembly configuration.

[0013] According to a characteristic of the accessory, the coupling system comprises a clamping device, distinct from the clamping flange, configured to, in the assembled configuration, grip the screwing and / or unscrewing device.

[0014] This makes it possible to tighten the screwing and / or unscrewing device in two separate zones and therefore to contribute to better maintenance of the screwing and / or unscrewing device relative to the supporting structure in the assembly configuration.

[0015] According to a characteristic of the accessory, the coupling system is configured so as to ensure a first vibration decoupling at a region receiving the screwing and / or unscrewing device within the clamping flange and a second vibration decoupling between the clamping flange and the supporting structure.

[0016] This allows for better support of the screwing and / or unscrewing device when it is mounted on the supporting structure via the decoupling system and to reduce vibrations at the level of the operating handle and the control member.

[0017] According to a characteristic of the accessory, the coupling system comprises at least one damping member configured to oppose, in the assembled configuration, the transmission of vibrations between the screwing and / or unscrewing device and the supporting structure.

[0018] The role of this damping member is to reduce the vibrations perceived by the operator.

[0019] According to a characteristic of the accessory, the coupling system comprises a plurality of damping members.

[0020] This makes it possible to have several points / zones for holding the screwing and / or unscrewing device so that it is sufficiently held and that, if necessary, the organs damping resists vibrations and / or shocks generated by the screwing and / or unscrewing device.

[0021] According to a characteristic of the accessory: • the clamping flange has a closed configuration in which two parts of the clamping flange are biased towards each other with the interposition of at least one first damping member of the plurality of damping members; • the clamping flange comprises at least one second damping member of the plurality of damping members, said second damping member being configured to, in the closed configuration of the clamping flange and in the assembled configuration, be in contact with the screwing and / or unscrewing device in order to participate in holding the screwing and / or unscrewing device in the clamping flange; • the clamping flange is connected to the supporting structure at least via at least one third damping member of the plurality of damping members.

[0022] This makes it possible to ensure a limitation of the transfer of vibrations from the screwing and / or unscrewing device to the supporting structure when it is clamped by the clamping flange (i.e. in the assembly configuration) in the sense that: • the second damping member participates in the formation of a first stage of vibration decoupling in contact with the screwing and / or unscrewing device; • the first damping member participates in the formation of, or forms, a second stage of vibration decoupling at the level of the closing of the clamping flange between the two portions of the clamping flange which are stressed towards each other with the interposition of said first damping member; • the third damping member participates in the formation of, or forms a third stage of vibration decoupling at the junction between the clamping flange and the supporting structure.

[0023] According to a characteristic of the accessory, the clamping device comprises two parts configured to be biased, in a closed configuration of the clamping device, one towards the other so as to locally grip, in the assembled configuration, the screwing and / or unscrewing device, one of said two parts being fixed to the supporting structure at least by means of at least one of the damping members of the plurality of damping members.

[0024] This allows good retention of the screwing and / or unscrewing device to the supporting structure in the assembled configuration, while providing suitable damping.

[0025] According to a characteristic of the accessory, the screwing and / or unscrewing device, intended to be assembled with the accessory, comprises a motor, an impact mechanism and a connecting part connecting the motor and the impact mechanism, and in which: • the clamping flange is shaped to be mounted on a part of the screwing and / or unscrewing device chosen from: • the connecting part; • the engine; • the shock mechanism; • the clamping device is shaped to be mounted at the gripping member.

[0026] This makes it possible to maximize the absorption of vibrations on the side of their source formed by the motor and the shock mechanism and to ensure adequate support of the screwing and / or unscrewing device relative to the supporting structure on the side of the gripping member.

[0027] According to a characteristic of the accessory, the accessory comprises a handling interface, the handling interface comprising the control member and the handling handle, the handling interface being mounted according to at least one degree of mobility relative to the supporting structure, the accessory comprising an indexing mechanism configured to allow the positioning of the handling interface relative to the supporting structure according to at least two different predefined relative positions, said indexing mechanism being configured so as to have: • a first configuration in which it maintains the positioning of the handling interface relative to the supporting structure when the relative positioning between the handling interface and the supporting structure is in any one of the predefined relative positions; • a second configuration in which the degree of mobility of the handling interface relative to the supporting structure is permitted.

[0028] This allows the screwing and / or unscrewing device to be used, via the accessory, in an ergonomic manner for the operator depending on whether he wishes to screw or unscrew a railway fishplate attachment or whether he wishes to screw or unscrew a fastening for securing a rail of the railway to a railway sleeper when the accessory and the screwing and / or unscrewing device are assembled.

[0029] According to a characteristic of the accessory, the indexing mechanism comprises a return member configured to vary the indexing mechanism automatically from its second configuration to its first configuration when the relative positioning between the handling interface and the supporting structure corresponds to any one of the predefined relative positions.

[0030] This helps the operator to handle the accessory.

[0031] The invention also relates to an assembly comprising a screwing and / or unscrewing device for a railway track fastener and an accessory as described, the screwing and / or unscrewing device comprising a gripping member and a control actuator for controlling a function of the screwing and / or unscrewing device, in this assembly: • the coupling device is connected to the screwing and / or unscrewing device; • the assembly is in the assembled configuration in which the screwing and / or unscrewing device and the supporting structure are assembled by the coupling system which ensures vibration decoupling between the handling handle and the gripping member.

[0032] This makes it possible to ensure vibration decoupling at the level of the handling handle. The operator no longer needs to act on the gripping member to manipulate the screwing and / or unscrewing device which is manipulated, at least in part then via the accessory, the result being that the use of the screwing and / or unscrewing device via the accessory is more relaxing for the operator and makes it possible to tend to limit musculoskeletal disorders.

[0033] The assembly may comprise a trolley, the trolley comprising a rolling system for rolling on the rails of the railway track to be maintained and an articulated arm at the end of which the accessory is mounted.

[0034] This makes it possible to relieve the operator, by limiting the weight of the assembly formed by the accessory and the screwing and / or unscrewing device from the operator's point of view.

[0035] Other advantages and characteristics may emerge from the detailed description which follows. Brief description of the drawings

[0036] The invention will be better understood upon reading the detailed description which follows, given solely by way of non-limiting example and made with reference to the appended drawings listed below.

[0037] [Fig-1] [Fig.l] illustrates a perspective view of a screwing device and / or unscrewing for railway track attachment.

[0038] [Fig.2] [Fig.2] illustrates, according to a particular embodiment, a view in perspective of an accessory for the screwing and / or unscrewing device in a first configuration of the accessory, this [Fig.2] representing the accessory alone without the screwing and / or unscrewing device.

[0039] [Fig.3] [Fig.3] illustrates a perspective view of an assembly comprising the accessory and the screwing and / or unscrewing device assembled in the first configuration of the accessory.

[0040] [Fig.4] [Fig.4] illustrates, in a perspective view, the whole of [Fig.3] comprising a trolley resting on a railway track.

[0041] [Fig.5] [Fig.5] illustrates a perspective view of the accessory in a second configuration, this [Fig.5] representing the accessory alone without the screwing and / or unscrewing device.

[0042] [Fig.6] [Fig.6] illustrates a side view of the accessory of [Fig.5].

[0043] [Fig.7] [Fig.7] is a perspective view of the assembly including the accessory and the screwing and / or unscrewing device assembled in the second configuration of the accessory.

[0044] [Fig.8] [Fig.8] is a perspective view illustrating the assembly of [Fig.7] including the trolley resting on a railway track.

[0045] [Fig.9] [Fig.9] is a partial side view of the assembly as seen in [Fig.3] or 7 centered on a gripping member of the screwing and / or unscrewing device.

[0046] [Fig. 10] [Fig. 10] corresponds to [Fig.9] for which the screwing and / or unscrewing device has been removed.

[0047] [Fig. 11] [Fig. 11] is a partial perspective view of the accessory centered on a coupling system belonging to the accessory and comprising a closed clamping flange and clamping device.

[0048] [Fig. 12] [Fig. 12] corresponds to [Fig. 11], in this [Fig. 12], the clamping flange and the clamping device are open.

[0049] [Fig. 13] [Fig. 13] is a partial sectional view of the accessory as seen in [Fig.2] and centered on an indexing mechanism belonging to the accessory allowing a handling handle and a control member belonging to the accessory to be positioned in a suitable manner relative to a supporting structure belonging to the accessory.

[0050] [Fig. 14] [Fig. 14] illustrates the accessory in a side view in a transitional configuration allowing the positioning of the handling handle and the control member to be changed relative to the supporting structure.

[0051] [Fig. 15] [Fig. 15] illustrates a sectional view of a portion of the accessory allowing the indexing mechanism to be visualized in the transient configuration.

[0052] [Fig. 16] [Fig. 16] illustrates, in a perspective view, the assembly for which the accessory comprises, according to an improvement, a noise-reducing member.

[0053] In these figures, the same references are used to designate the same elements. The elements represented in the different figures are not necessarily drawn to scale in order to facilitate understanding of the figures. Detailed description

[0054] In the present description, a fastener may comprise a head, for example hexagonal, and an at least partially threaded body extending from the head.

[0055] A screwing and / or unscrewing device 200 for a railway track fastener comprises a gripping member 201 and a control actuator 202 for controlling a function of the screwing and / or unscrewing device 200. An exemplary embodiment of the screwing and / or unscrewing device 200 is illustrated in [Fig.l].

[0056] The function may be the rotation of a motor 203 of the screwing and / or unscrewing device 200. Thus, for example, when an operator presses on the control actuator 202 this makes it possible to ensure the rotation of a shaft 204, coupled to the motor 203, at one end 204a of which a socket (not shown and also called a key) having a shape allowing it to receive the head of the fastener to be screwed or unscrewed, or an extension, can be mounted for example via a ball device 210 arranged at the end 204a to allow rapid assembly / disassembly of the socket or the extension. The end 204a is opposite the motor 203. Where appropriate, the screwing and / or unscrewing device 200 comprises the ball device 210.

[0057] The gripping member 201 adopts in particular the form of a handle configured to be grasped by hand by the operator. Thus, more generally, the gripping member 201 is intended to be grasped by the operator who can then manually hold the screwing and / or unscrewing device 200 via this gripping member 201.

[0058] The control actuator 202 may be formed by a trigger provided of a switch. Thus, when the operator activates the trigger (in particular manually), this makes it possible in particular to start the motor 203 (i.e. to set it in rotation) and in particular to drive the shaft 204 in rotation.

[0059] By “screwing and / or unscrewing device 200”, it is understood that the screwing and / or unscrewing device 200 can allow either only screwing, or only unscrewing, or to ensure, at the operator's choice, screwing or unscrewing for example via a selector 205 for the direction of rotation of the motor 203 from which it results that the shaft 204 rotates in a first direction SI or in a second direction S2 opposite to the first direction SL For example, the selector 205 can have four positions including: • a first position corresponding to a release position allowing the shaft to be rotated upon actuation of the control actuator 202 204 at full power of the engine 203 when unscrewing a fastener; • a second position corresponding to a clamping position allowing the shaft 204 to be rotated, upon actuation of the control actuator 202, at a first power of the motor 203 as part of the screwing of a fastener; • a second position corresponding to a clamping position allowing the shaft 204 to be rotated, upon actuation of the control actuator 202, at a second power of the motor 203, strictly greater than the first power; in the context of screwing a fastener; • a third position corresponding to a clamping position allowing the shaft 204 to rotate, upon actuation of the control actuator 202, at a third power of the motor 203, strictly greater than the second power. These first, second and third powers make it possible to adapt the operation of the screwing and / or unscrewing device 200, for example, depending on the torque encountered during screwing. For unscrewing, the torque of the motor 203 will be high in order to loosen the fastener properly, particularly if the latter is seized.

[0060] The transition of the motor 203 from a screwing configuration to a screwing configuration can be done by phase inversion controlled by the selector 205.

[0061] The screwing and / or unscrewing device 200 may be powered by one or more batteries 206 ([Fig.l]) mounted in a removable manner to the rest of the screwing and / or unscrewing device 200. This example is not limiting in the sense that the screwing and / or unscrewing device 200 could use another energy source such as a cable power supply or a fossil fuel to activate (i.e. rotate) its motor 203 so as to drive the rotation of the shaft 204.

[0062] Preferably, the screwing and / or unscrewing device 200 comprises an impact mechanism 207. The impact mechanism 207 may be a striking mechanism (in this case the screwing and / or unscrewing device 200 is also called an impact driver) or a percussion mechanism (in this case the screwing and / or unscrewing device 200 is also called an impact wrench).

[0063] The screwing and / or unscrewing device 200 may also comprise a connecting part 208 connecting the motor 203 and the impact mechanism 207.

[0064] It results from the use of the screwing and / or unscrewing device 200 that its operation, for example via the motor 203 and / or via the shock mechanism 207, induces the propagation of vibrations at the level of the gripping and the control actuator 202. Such vibrations are harmful to the operator and can cause musculoskeletal disorders in the latter.

[0065] In order to limit the vibrations perceived by the operator when using the screwing and / or unscrewing device 200, the invention relates to an accessory 100 for the screwing and / or unscrewing device 200. Figures 2 to 8 illustrate in particular a particular embodiment of this accessory 100 according to different configurations of use which will be detailed below.

[0066] The accessory 100 comprises a handling handle 101, a control member 102, a coupling device 103, a supporting structure 104 secured to the handling handle 101 and the control member 102; a coupling system 105 configured to allow the screwing and / or unscrewing device 200 to be assembled in a removable manner to the supporting structure 104 and to ensure, in an assembled configuration of the screwing and / or unscrewing device 200 to the supporting structure 104, vibration decoupling between the handling handle 101 and the gripping member 201.

[0067] The assembled configuration, i.e. obtained when the accessory 100 and the screwing and / or unscrewing device 200 are assembled, is for example visible in figures 3, 4, 7 and 8.

[0068] The coupling device 103 is connected to the control member 102 and is configured to be connected to the screwing and / or unscrewing device 200 in order to propagate an actuation of the control member 102 to the screwing and / or unscrewing device 200, in particular in the assembled configuration. In other words, the coupling device 103 is connected to the control member 102 and is configured to be connected to the screwing and / or unscrewing device 200 so that the actuation of the control member 102 makes it possible to control the function of the screwing and / or unscrewing device 200 from the accessory 100.

[0069] In addition to the fact that the accessory 100 makes it possible to limit the vibrations perceived by the operator when using the screwing and / or unscrewing device 200 from this accessory 100, the accessory 100 also makes it possible to relocate the control of the screwing and / or unscrewing device 200 to the level of the accessory 100. Thus, the operator no longer needs to interact directly with the screwing and / or unscrewing device 200 to actuate the control actuator 202 when the accessory 100 and the screwing and / or unscrewing device 200 are assembled (i.e. in the assembled configuration). As a result, the function can be controlled, in the assembled configuration, directly from the accessory 100 by actuation of the control member 102, without this actuation subjecting the operator to the vibrations to which he would have been subjected by manual actuation directly on the control actuator 202.

[0070] In other words, preferably, the coupling system 105 is also configured to ensure, in the assembled configuration, vibrational decoupling between the control member 102 and the control actuator 202.

[0071] Of course, the accessory 100 as such can be considered in isolation, i.e. when the screwing and / or unscrewing device 200 and the accessory 100 are separate. Therefore, the reference to the assembled configuration when speaking of the accessory 100 makes it possible to define the accessory 100 according to its cooperation with the screwing and / or unscrewing device 200; the coupling system 105 being intended to ensure vibration decoupling in the assembled configuration.

[0072] The handling handle 101 allows the operator to manually manipulate the accessory 100.

[0073] The control member 102 may adopt the form of a handle of the type capable of varying between a rest position towards which it is constantly urged and an actuation position obtained by the operator pressing on said handle.

[0074] It follows from what has been described above that the invention also relates to an assembly 300 comprising the screwing and / or unscrewing device 200 and the accessory 100. The assembly 300 is in the assembled configuration (i.e. the assembly 300 comprises the assembled configuration) in which the screwing and / or unscrewing device 200 and the supporting structure 104 are assembled by (i.e. via) the coupling system 105 which ensures vibration decoupling between the handling handle 101 and the gripping member 201. Thus, the coupling system 105 ensures vibration decoupling between the supporting structure 104 and the screwing and / or unscrewing device 200. Furthermore, in this assembly 300, the coupling device 103 is connected to the screwing and / or unscrewing device 200 in order, where appropriate, to propagate the actuation of the control member 102 to the screwing and / or unscrewing device 200.In particular, the set 300 is visible in figures 3, 4, 7 and 8.

[0075] The assembly 300 may be a maintenance device for a railway track.

[0076] Subsequently, everything that applies to the accessory 100 also applies to the assembly 300 which comprises the accessory 100 and within which the assembled configuration is present, i.e. that the accessory 100 and the screwing and / or unscrewing device 200 are actually assembled.

[0077] In the example of figures 3, 4, 7 and 8, the screwing and / or unscrewing device 200 is that visible in [Fig.l].

[0078] By “coupling system 105 configured to allow the screwing and / or unscrewing device 200 to be assembled in a removable manner to the supporting structure 104”, it is understood that the assembly and disassembly can be carried out with or without the use of tools.

[0079] The accessory 100 may comprise two handling handles 101 as seen in FIGS. 2 to 5 and 7 to 8, this makes it easier for the operator to handle the accessory 100.

[0080] In particular, the accessory 100 comprises a handling interface 106 comprising the control member 102 and the handling handle(s) 101.

[0081] For example, the manipulation interface 106 comprises an orientation member 107, such as a handlebar or handlebar. The manipulation handles 101 are mounted at the opposite longitudinal ends of the orientation member 107. The control member 102 is then mounted on the orientation member 107 at one of the manipulation handles 101 (the right handle in FIGS. 2 to 5 and 7 to 8).

[0082] The handling interface 106, and more particularly the orientation member 107, can be connected to the supporting structure 104 at least by means of an elongated element 120 such as an upright. The orientation member 107 can then be fixed to the elongated element 120 which can adopt the form of a bracket.

[0083] In particular, the vibration decoupling provided by the coupling system 105, in the assembled configuration, corresponds to a vibration decoupling between the screwing and / or unscrewing device 200 and a part of the accessory 100 comprising the supporting structure 104, the handling interface 106, and where appropriate the elongated element 120.

[0084] As mentioned above, the transfer of the control of the function to the accessory 100 by the control member 102 requires the presence of the coupling device 103 in order to propagate the actuation of the control member 102 to activate the function when the coupling device 103 is connected to the screwing and / or unscrewing device 200. The notion of propagation is to be taken in the broad sense in the sense that it can be implemented by any means making it possible to ensure, when the coupling device 103 is connected to the screwing and / or unscrewing device 200 and in particular in the assembled configuration, an activation of the function by actuation of the control member 102.

[0085] According to a first embodiment relating to the propagation by the coupling device 103, the coupling device 103 is configured to, when said coupling device 103 is connected to the screwing and / or unscrewing device 200, mechanically propagate the actuation of the control member 102 to the control actuator 202.

[0086] For example, the coupling device 103 may comprise a cable 109 (FIGS. 2, 3, 5, 6, 7, and 9 to 14), in particular metallic, mechanically connected to the control member 102 and to an actuating device 108. The coupling device 103 comprises this actuating device 108.

[0087] The actuating device 108 may comprise an adapter, for example formed by two shells 112a, 112b shaped to be mounted on the device 200 screwing and / or unscrewing and thus ensure suitable maintenance of the actuating device 108 at the level of the control actuator 202. This adapter can be configured to be mounted on the screwing and / or unscrewing device 200 in a removable manner with or without the use of tools.

[0088] Figures 9 and 10 are centered on the actuation device 108 according to a particular implementation of the first embodiment relating to propagation by the coupling device 103 and for which the shell 112b has been removed in order to view the interior of the actuation device 108.

[0089] The actuating device 108 may comprise a support member 110 so that the actuation of the control member 102 induces, via the cable 109 fixed to this support member 110 and to the control member 102, a movement of the support member 110, for example around an axis A1 of rotation, allowing the support member 110 to locally exert a force on the control actuator 202. For example, this force reproduces the manual actuation of the control actuator 202 by the operator.

[0090] In particular, Figures 9 and 10 illustrate the support member 110 in a rest configuration, in which it does not actuate the control actuator 202, which it presents when the actuating member 102 is not actuated by the operator. When the actuating member 102 is actuated, i.e. an actuating force is exerted by the operator on the actuating member 102, the cable 109 can be pulled by the control member 102, resulting in rotation of the support member 110 around the rotation axis A1 in the direction of the arrow F1 in [Fig. 10]. Thus, it is understood that this rotation according to the arrow Fl makes it possible, in [Fig.9], to actuate the control actuator 202 when the actuating device 108 is mounted on the screwing and / or unscrewing device 200.

[0091] Preferably, so that the function is automatically deactivated / stopped when the operator releases his actuating force on the actuating member 102, the actuating device 108 may comprise a return member 111, such as a spring, constantly urging the support member 110 towards its rest configuration. Thus, the release of the actuating force on the control member 102 by the operator allows the spring to gradually return the support member 110 to its rest configuration which it occupies when the operator no longer exerts any force on the control member 102.

[0092] For example, the return member 111 is a torsion spring engaged on the rotation axis A1 and having two ends, one bearing against one of the two shells 112a, 112b and the other bearing on the support member 110 (see for example figures 9 and 10).

[0093] This first embodiment has the advantage of simplicity of implementation but also the advantage of preserving the sealing of the screwing and / or unscrewing device 200 in the sense that there is no need to modify this screwing and / or unscrewing device 200 since the coupling device 103 replaces, when appropriate (when the aforementioned actuation force is implemented) and when the coupling device 103 is connected to the screwing and / or unscrewing device 200, the manual actuation of the operator on the control actuator 202.

[0094] According to a second embodiment relating to the propagation by the coupling device 103, the coupling device 103 is configured to, when said coupling device 103 is connected to the screwing and / or unscrewing device 200, authorize propagation of an electrical actuation signal, during the actuation of the control member 102, directly to the screwing and / or unscrewing device 200.

[0095] For example, to implement this second embodiment relating to propagation by the coupling device 103, an electrical cable of the coupling device 103 can be electrically connected to the control member 102 and to a connector belonging to the screwing and / or unscrewing device 200. Thus, the actuation of the control member 102 allows the propagation of the electrical actuation signal in the electrical cable and following this propagation, the screwing and / or unscrewing device 200 receives the electrical actuation signal from which results an actuation of the function in an appropriate manner.

[0096] For example, the electrical actuation signal is continuously generated by the screwing and / or unscrewing device 200 to be propagated on a circuit comprising the connector, the electrical cable and a component of the actuation member 102. This circuit has an open state when the actuation member 102 is not actuated and a closed state when the actuation member 102 is actuated. The component may be a potentiometer or a switch which, when the actuation member 102 is actuated, changes the circuit from the open state to the closed state so as to allow the propagation of the electrical actuation signal in the circuit which results in the actuation of the function. When the actuation member 102 is no longer actuated, the electrical circuit returns to its open state which causes the function to be stopped by the screwing and / or unscrewing device 200.In this case, the electrical cable may comprise two electrical conductors connected in series with the interposition of the component and each electrically connected to the connector when the coupling device 103 is connected to the screwing and / or unscrewing device 200.

[0097] According to a third embodiment relating to the propagation by the coupling device 103, the coupling device 103 is configured to, when said coupling device 103 is connected to the screwing and / or unscrewing device 200, propagate, upon actuation of the control member 102, an electrical actuation signal. generated by the accessory 100 (in particular by the control member 102) to an actuation device 108 configured to ensure mechanical actuation of the control actuator 202 following reception of the electrical control signal by the actuation device 108, the coupling device 103 comprising the actuation device 108.

[0098] In the context of this third embodiment relating to propagation by the coupling device 103, the cable 109 may be electrical and the actuation device 108 may house means configured to control a motor of the actuation device 108 in order to move a support member of the actuation device 108 so that it exerts a suitable force on the control actuator 202 upon receipt of the electrical actuation signal by said means configured to control the motor.

[0099] Furthermore, the accessory 100 (in particular the control member 102) can generate an electrical release signal which is transmitted to the actuation device 108 via the cable 109 when the actuation of the control member 102 stops so that the means configured to control the motor move the support member so that the actuation of the control actuator 202 by the support member ceases.

[0100] In order for the electrical actuation signal or the electrical release signal to propagate in the desired manner, the control member 102 may comprise a switch or a potentiometer connected to the electrical cable.

[0101] According to a fourth embodiment relating to the propagation by the coupling device 103, the coupling device 103 is configured to, when said coupling device 103 is connected to the screwing and / or unscrewing device 200, propagate a radioelectric actuation signal generated by the accessory 100 (in particular by the control member 102), during the actuation of the control member 102, directly to the screwing and / or unscrewing device 200. Therefore, the actuating member 102 may comprise a transmitter configured to transmit said radio actuation signal, for example following the activation of a switch or a potentiometer of the control member 102, and the screwing and / or unscrewing device 200 may comprise a receiver configured to receive said radio actuation signal and means for actuating the function upon receipt of said radio actuation signal.

[0102] The accessory 100 (in particular the control member 102) can generate an electrical release signal which is transmitted to the screwing and / or unscrewing device 200 when the actuation of the control member 102 stops so that the screwing and / or unscrewing device 200 stops the function. For this purpose, the transmitter can be configured to emit said radioelectric release signal when the actuation of the control member 102 stops, the receiver can be configured to receive said radio release signal, and the screwing and / or unscrewing device 200 may comprise means for stopping the function upon receipt of said radio release signal by the receiver.

[0103] According to a fifth embodiment relating to the propagation by the coupling device 103, the coupling device 103 is configured to propagate, when said coupling device 103 is connected to the screwing and / or unscrewing device 200, a radio actuation signal generated by the accessory 100 (in particular by the control member 102), during the actuation of the control member 102, to an actuation device configured to ensure mechanical actuation of the control actuator 202 following the reception of the radio actuation signal by the actuation device, the coupling device 103 comprising the actuation device 108.Therefore, the actuating member 102 may comprise a transmitter configured to transmit said radio actuation signal when the control member 102 is actuated, and the actuating device may comprise a receiver configured to receive said radio actuation signal and means for mechanically actuating the control actuator 202 when receiving said radio actuation signal.

[0104] The accessory 100 (in particular the control member 102) can generate a radio release signal which is transmitted to the actuation device when the actuation of the control member 102 is stopped so that the actuation device stops the actuation of the control actuator 202. For this purpose, the transmitter can be configured to transmit said radio release signal when the actuation of the control member 102 is stopped, the receiver can be configured to receive said radio release signal and the actuation device can comprise means for stopping the actuation of the control actuator 202 when receiving said radio release signal.

[0105] The means for actuating and stopping may share the same motor and the same support member, as well as a program adapted to controlling the motor as a function of the radioelectric release signal or the radioelectric actuation signal.

[0106] These first to fifth embodiments relating to propagation by the coupling device 103 are particularly suitable for ensuring propagation via the coupling device 103 while limiting the diffusion of vibrations resulting from the operation of the screwing and / or unscrewing device 200 towards the control member 102.

[0107] In the case where a cable is present, whether electrical or not, preferably the cable runs partly in the supporting structure 104 as is notably the case in figures 2 to 10 where only portions of the cable 109 are visible. This promotes the protection of the cable.

[0108] In the case where the coupling device 103 comprises the actuating device 108, this actuating device 108 comprises the adapter mentioned above and is therefore configured to be assembled on the screwing and / or unscrewing device 200 at the level of the control actuator 202 and in particular on the gripping member 201. As mentioned above, this makes it possible to suitably couple the coupling device 103 to the screwing and / or unscrewing device 200 to effectively propagate the actuation of the control member 102 to the control actuator 202 without prejudice to the integrity of the screwing and / or unscrewing device 200. In particular, within the framework of the assembly 300, this adapter is mounted, for example using screws, on the screwing and / or unscrewing device 200.

[0109] In particular, as shown by way of example in Figures 2, 3, 5, 6, 7 and 9 to 12, the supporting structure 104 comprises a frame, for example tubular, comprising two longitudinal members 104a, 104b on which the coupling system 105 is mounted, for example by fixing using screws. The frame as illustrated adopts the general shape of a rectangular parallelepiped type frame. The frame forms in particular a cage within which the screwing and / or unscrewing device 200 is mounted in the assembled configuration. The supporting structure 104 may be made of steel, as may the orientation member 107 and the elongated element 120.

[0110] As mentioned above, the coupling system 105 makes it possible both to secure, in the assembled configuration, the accessory 100 and the screwing and / or unscrewing device 200 together, and to ensure suitable vibration decoupling between the supporting structure 104 and the screwing and / or unscrewing device 200. To this end, there is a need to ensure this in a reliable, inexpensive and removable manner.

[0111] Therefore, to satisfy this need, the coupling system 105 may comprise a clamping flange 113 configured to, in the assembled configuration, grip the screwing and / or unscrewing device 200. Of course, from the point of view of the assembly 300 comprising the accessory 100 and the screwing and / or unscrewing device 200, the clamping flange 113 grips the screwing and / or unscrewing device 200. This clamping flange 113 may comprise a closed configuration ([Fig. 11]) and may comprise an open configuration ([Fig. 12]). The clamping flange 113 may vary between its open configuration and its closed configuration.

[0112] Still with the aim of improving the maintenance of the screwing and / or unscrewing device 200, the coupling system 105 may comprise a clamping device 114, distinct from the clamping flange 113, configured so that, in the assembled configuration, clamp the screwing and / or unscrewing device 200. Thus, in addition to the clamping flange 113, this makes it possible to attach the screwing and / or unscrewing device 200 to the supporting structure 104 according to several attachment zones (via the clamping flange 113 and the clamping device 114) resulting in good support in the assembled configuration. Of course, from the point of view of the assembly 300 comprising the accessory 100 and the screwing and / or unscrewing device 200, the clamping device 114 clamps the screwing and / or unscrewing device 200. This clamping device 114 may comprise a closed configuration ([Fig. 11]) and may comprise an open configuration ([Fig. 12]). The clamping device 114 may vary between its open configuration and its closed configuration.

[0113] The use of the clamping flange 113 alone or with the clamping device 114 has been described. In fact, the clamping flange 113 and the clamping device 114 have the same function, i.e. participating in holding the screwing and / or unscrewing device 200 relative to the supporting structure 104, and their respective number is not limited to one in the sense that it can be adapted according to the form factor of the screwing and / or unscrewing device 200 in order to ensure suitable holding.

[0114] In order to limit the vibrations perceived within the supporting structure 104, the coupling system 105 can be configured so as to ensure a first vibration decoupling at a receiving region of the screwing and / or unscrewing device 200 within the clamping flange 113 and a second vibration decoupling between the clamping flange 113 and the supporting structure 104. This also makes it possible to ensure good retention of the screwing and / or unscrewing device 200 in the assembled configuration. The receiving region corresponds in particular to the location of a part of the screwing and / or unscrewing device 200 gripped by the clamping flange 113 in the assembled configuration.In other words, the assembly 300 comprising the accessory 100 and the screwing and / or unscrewing device 200 is in particular such that the clamping flange 113 ensures the first vibration decoupling in particular in contact with the clamping flange 113 with the screwing and / or unscrewing device 200, and the second vibration decoupling.

[0115] What has been described above results in a need to implement efficient vibration decoupling. For this purpose, the coupling system 105 may comprise at least one damping member 115a, 115b, 115c, 115d configured to oppose, in the assembled configuration, the transmission of vibrations between the supporting structure 104 and the screwing and / or unscrewing device 200. It is the damping provided by the damping member 115a, 115b, 115c, 115d which makes it possible in particular to limit the aforementioned transmission of vibrations. [Fig. 11] is a partial figure of the accessory 100 which illustrates a particular embodiment of the coupling system 105 as it is visible in FIGS. 2 to 8.

[0116] Everything that applies to the damping member 115a, 115b, 115c, 115d can apply to the damping members 115a, 115b, 115c, 115d when there are several of them.

[0117] In fact, the damping member 115a, 115b, 115c, 115d is also called in the technical field of the invention an anti-vibration member.

[0118] In particular, the damping member 115a, 115b, 115c, 115d can be chosen from: an anti-vibration pad, a spring system, a gas cylinder. When the coupling system 105 comprises several damping members 115a, 115b, 115c, 115d, different types of the latter from the list mentioned in this paragraph can be combined.

[0119] The anti-vibration pad can be made of any material suitable for absorbing vibrations, for example this material can be chosen from: rubber, elastomer, polyurethane.

[0120] For example, the coupling system 105 comprises a plurality of damping members 115a, 115b, 115c, 115d, this makes it possible, for example, to distribute the damping in an appropriate manner and therefore to adjust the desired vibration decoupling.

[0121] For example, one or more of these damping members 115a, 115b, 115c, 115d are arranged to be in contact with the screwing and / or unscrewing device 200 in the assembled configuration. This allows satisfactory damping. In FIGS. 11, four damping members 115a are arranged to be in contact with the screwing and / or unscrewing device 200 in the assembled configuration; this allows a suitable distribution around the screwing and / or unscrewing device 200 in order to participate in its maintenance while limiting the transmission of vibrations towards the supporting structure 104.

[0122] In addition to ensuring satisfactory support, the use of several damping members 115a in contact with the screwing and / or unscrewing device 200 in the assembled configuration makes it possible to avoid tearing of said damping members 115a. Indeed, if for example only one damping member 115a were used, for example of the anti-vibration pad type, it would work for example in compression when screwing and but in tension when unscrewing. Damping members of the anti-vibration pad type generally have very poor tear resistance. The advantage of having several anti-vibration pads located on either side of the screwing and / or unscrewing device 200 is to have compression resistance on at least one anti-vibration pad regardless of the working direction, i.e. screwing or unscrewing, of the screwing and / or unscrewing device 200.

[0123] Thus, the coupling system 105 can comprise several damping members 115a each formed by an anti-vibration pad. In the assembled configuration, these damping members 115a are in contact with the device 200 screwing and / or unscrewing and are distributed around the screwing and / or unscrewing device 200 so that, during use of the assembly 300 (i.e. when the function, for example the rotation of the motor 203 inducing a rotation of the shaft 204 of the screwing and / or unscrewing device 200 in the first direction of rotation S1 or in the second direction of rotation S2, is activated), at least one of these damping members 115a works in compression and at least one other of these damping members 115a works in tension; this makes it possible to improve the overall damping by absorbing vibrations in different directions.

[0124] According to a particular embodiment, the clamping flange 113 has the closed configuration ([Fig. 10]), for example using one or more screws 131, in which two parts 116a, 116b of the clamping flange 113 are urged towards each other with the interposition of at least one first damping member 115b of the plurality of damping members 115a, 115b, 115c, 115d. Furthermore, in this case, the clamping flange 113 may also comprise at least one second damping member 115a of the plurality of damping members 115a, 115b, 115c, 115d, said second damping member 115a being configured so that, in the closed configuration of the clamping flange 113 ([Fig.11]) and in the assembled configuration (figures 3 and 7), be in contact with the screwing and / or unscrewing device 200 in order to participate in holding the screwing and / or unscrewing device 200 in the clamping flange 113, and therefore in particular relative to the supporting structure 104, in which the screwing and / or unscrewing device 200 is clamped by the clamping flange 113 in particular via contact of one or more second damping members 115a with the screwing and / or unscrewing device 200. The clamping flange 113 is connected to the supporting structure 104 at least by means of at least one third damping member 115c of the plurality of damping members 115a, 115b, 115c, 115d.This makes it possible to stage the damping via a first stage (via the second damping member(s) 115a) directly in contact with the screwing and / or unscrewing device 200, a second stage (via the first damping member(s) 115b) within the clamping flange 113 and a third stage (via the third damping member(s) 115c) between the clamping flange 113 and the supporting structure 104, in order to limit the transmission of vibrations to the supporting structure 104.

[0125] Preferably, the two parts 116a, 116b of the clamping flange 113 are formed by two separate pieces, as shown in [Fig. 11]. Thus, these two pieces can be assembled, in the closed configuration of the flange 113, at least by means of two first damping members 115b of the plurality of damping members 115a, 115b, 115c, 115d arranged at the ends opposite longitudinal edges of said two parts so as to form a clamping collar in the closed configuration of the clamping flange 113.

[0126] Alternatively, and in a manner not illustrated, the two parts 116a, 116b of the clamping flange 113 may correspond to two opposite longitudinal ends of the same part of the clamping flange 113 forming a clamping collar. The closed configuration of the clamping flange 113 then corresponds to a state where the two longitudinal ends are fixed together with the interposition of the first damping member 115b.

[0127] Preferably, the clamping flange 113 comprises several second damping members 115a, for example four in number as illustrated in [Fig. 11]. Where appropriate, these second damping members 115a are distributed over the two parts 116a, 116b forming two separate parts or over the part forming the clamping collar so as to allow some of them to work simultaneously in tension and others in compression as mentioned above when it comes to anti-vibration pads.

[0128] In particular, the clamping flange 113 has two mounting points to the supporting structure 104 so that the clamping flange 113 is fixed to each of the two side members 104a, 104b of the supporting structure 104.

[0129] Preferably, the clamping flange 113 is connected to the supporting structure 104, in particular at least by means of two third damping members 115c of the plurality of damping members 115a, 115b, 115c, 115d integral with the part 116b of the clamping flange 113 in [Fig.l 1] or with the part forming a clamping collar.

[0130] Of course, the clamping flange 114 may comprise the open configuration which makes it possible to install in, or remove from, the clamping flange 114 the screwing and / or unscrewing device 200. This open configuration is notably illustrated in [Fig.12],

[0131] If the screwing and / or unscrewing device 200 is provided with threaded holes 209 as shown for example in [Fig.l], it may be provided that some of the second damping members 115a coming into contact with the screwing and / or unscrewing device 200 at these holes are associated with screws 130 then screwed into the screwing and / or unscrewing device 200 in the assembled configuration so as to improve the holding of the screwing and / or unscrewing device 200 relative to the supporting structure 104.

[0132] In the case where the coupling system 105 comprises the clamping device 114, this clamping device 114 may comprise two parts 117a, 117b configured to be biased, in the closed configuration of the clamping device 114 (see [Fig. 11]), one towards the other so as to locally grip, in the assembled configuration, the screwing and / or unscrewing device 200. One said two parts 117a, 117b being fixed to the supporting structure 104 at least by means of at least one of the damping members 115d of the plurality of damping members 115a, 115b, 115c, 115d.

[0133] Preferably, the two parts 117a, 117b of the clamping device 114 are formed by two separate pieces, as shown in [Fig.l 1]. Thus, these two pieces can be assembled, in the closed configuration of the clamping device 114 by means of two screws 118a, 118b so as to form a clamping collar.

[0134] Alternatively, and in a manner not illustrated, the two parts 117a, 117b of the clamping device 114 may correspond to two portions of the same part of the clamping device 114 shaped for a clamping collar. The closed configuration of the clamping device 114 then corresponds to a state where locally these two parts 117a, 117b of the clamping device 114 are fixed together for example using a screw.

[0135] In particular, the clamping device 114 has two mounting points on the supporting structure 104 so that the clamping flange 113 is fixed to each of the two side members 104a, 104b for example using screws 132.

[0136] Preferably, the clamping device 114, and more particularly its part 117b, is connected to the supporting structure 104 at least by means of two fourth damping members 115d of the plurality of damping members 115a, 115b, 115c, 115d integral with the part 117b in [Fig.l 1] or with the part forming a clamping collar of the clamping device 114.

[0137] Of course, the clamping device 114 may comprise the open configuration which makes it possible to install in the, or remove from the, clamping device 114 the screwing and / or unscrewing device 200. This open configuration is notably illustrated in [Fig. 12].

[0138] According to an embodiment, in which the screwing and / or unscrewing device 200, intended to be assembled with the accessory 100, comprises the motor 203, the impact mechanism 206 and the connecting part 208 connecting the motor 203 and the impact mechanism 206 ([Fig.l]), the accessory 100 may be such that the clamping flange 114 is shaped to be mounted on a part of the screwing and / or unscrewing device 200 chosen from: • the connecting part 208; • the 203 engine; • the 206 shock mechanism; and the accessory 100 is such that the clamping device 114 is shaped to be mounted at the level of the gripping member 201, in particular on, and more particularly through (figures 3 and 7), the gripping member 201.

[0139] This allows the clamping flange 113 to provide suitable damping near the source of the vibrations of the screwing and / or unscrewing device 200, in particular using the damping members 115a, 115b, 115c (the first, second and third damping members) as described above.

[0140] Thus, the clamping flange 113 can be shaped to surround said part of the screwing and / or unscrewing device 200.

[0141] In the context of the assembly 300, the clamping flange 113 is mounted on the part of the screwing and / or unscrewing device 200, and the clamping device 114 is mounted at the level of the gripping member 201, in particular on, and more particularly through (figures 3 and 7), the gripping member 201.

[0142] As mentioned in the state of the art section, the railway track 1000 may comprise two rails 1001, 1002 connected to each other by sleepers 1003 staggered according to the length of the rails 1001, 1002 as shown for example in FIGS. 4 and 8. The rails 1001, 1002 are fixed to the sleepers 1003 via first fasteners 1004, also called lag screws. Each of the two rails 1001, 1002 may be formed from a plurality of rail portions 1006a, 1006b fixed to each other, two consecutive rail portions 1006a, 1006b may be fixed to each other via a fishplate 1007 and second fasteners 1005 fixing the fishplate 1007 to said two rail portions 1006a, 1006b. For this purpose, the accessory 100 may comprise a first configuration and a second configuration making it possible to orient the screwing and / or unscrewing device 200 in an appropriate manner whether the operator wants to screw or unscrew a second fastener 1005 or a first fastener 1004.The first configuration of the accessory 100, also called the fish-fastening configuration (figures 2 to 4), implies that the screwing or unscrewing direction of the screwing and / or unscrewing device 200 is adapted to the axial direction of the body of the second fastener 1005 to allow the screwing or unscrewing of the second fastener 1005. The second configuration of the accessory 100, also called the screw-fastening configuration (figures 5 to 8), implies that the screwing or unscrewing direction of the screwing and / or unscrewing device 200 is adapted to the axial direction of the body of the first fastener 1004 to allow the screwing or unscrewing of the first fastener 1004.

[0143] For example, the first configuration of the accessory 100 is such that it makes it possible to position the shaft 204a of the screwing and / or unscrewing device 200 in a parallel direction, or forming an angle between +25 degrees or -25 degrees, relative to a rolling plane on the railway track at the level of the second attachment 1005 to be screwed or unscrewed.

[0144] For example, the second configuration of the accessory 100 is such that it makes it possible to position the shaft 204a of the screwing and / or unscrewing device 200 in an orthogonal direction, or forming an angle between +65 degrees or +115 degrees, relative to the running plan on the railway track at the level of the first attachment 1004 to be screwed or unscrewed.

[0145] By “rolling plane” is meant the plane in which a vehicle or trolley moves locally in line with (and therefore in particular on) the railway track.

[0146] By "between two values", it is understood in the present description that these two values ​​form the limits of a corresponding range for which the two values ​​are included.

[0147] Therefore, there is a need to facilitate the operator's work. This is made possible in particular thanks to the presence of the accessory 100 which it is advantageously possible to functionalize to achieve this.

[0148] To satisfy this need, the accessory 100 preferably comprises the handling interface 106 mounted according to at least one degree of mobility, for example pivotally mounted, relative to the supporting structure 104. The accessory 100 then preferably comprises an indexing mechanism 118 configured to allow the positioning of the handling interface 106 relative to the supporting structure 104 according to at least two different predefined relative positions, said indexing mechanism 118 being configured so as to present: • a first configuration (for example as visible in [Fig.2] at 8 and 13), also called engaged configuration, in which said indexing mechanism 118 maintains the positioning of the handling interface 106 relative to the supporting structure 104 when the relative positioning between the handling interface 106 and the supporting structure 104 is in any one of the predefined relative positions; • a second configuration (for example as visible in figures 14 and 15), called disengaged configuration, in which the degree of mobility of the handling interface 106 relative to the supporting structure 104 is authorized. In fact, the first configuration of the indexing mechanism 118 opposes the change of predefined relative position for example by prohibiting / preventing the degree of mobility (notwithstanding a simple possible functional clearance). The second configuration of the indexing mechanism 118 allows the degree of mobility so as to allow the change of predefined relative position.

[0149] According to an improvement, the indexing mechanism 118 comprises a return member 119, such as a spring configured to vary the indexing mechanism 118 automatically from its second configuration to its first configuration when the relative positioning between the handling interface 106 and the supporting structure 104 corresponds to any one of the predefined relative positions. This allows, for example, the operator wishing to change the relative positioning predefined of the manipulation interface 106 with respect to the supporting structure 104 to initiate it manually without having to worry about returning to the first configuration of the indexing mechanism 118: it can then concentrate on something else.

[0150] For example, the handling interface 106 is such that the elongate element 120 is pivotally mounted along a pivot axis A2 relative to the supporting structure 104 (see for example FIGS. 13 to 15). The elongate element 120 may be a hollow tube.

[0151] For example, the accessory 100 comprises two plates 121a, 121b on which the pivot axis A2 is mounted. These two plates 121a, 121b are fixed to the supporting structure 104 by any suitable means such as for example by welding on the supporting structure 104. The pivot axis A2 passes through the elongated element 120 and connects the two plates 121a, 121b. The elongated element 120 passes between the two plates 121a, 121b.

[0152] The accessory 100 may comprise a spacer 122 which separates the two plates 121a, 121b and maintains their spacing. Advantageously, this spacer 122 comprises a first imprint 134 and a second imprint 135, for example each adopting the shape of a rectilinear groove open at its two opposite longitudinal ends, each configured to receive a portion of the elongated element 120. The first imprint 134 receives the portion of the elongated element 120 in the first configuration of the accessory 100 (fishing configuration) and the second imprint 135 receives the portion of the elongated element 120 in the second configuration of the accessory 100 (screwing configuration). Thus, when the first imprint 134 receives the portion of the elongated element 120 it participates in maintaining the elongated element 120 and when the second imprint 135 receives the portion of the elongated element 120 it participates in maintaining the elongated element 120.This allows the accessory 100 to better withstand residual vibrations and the stresses it undergoes during use.

[0153] Preferably, the indexing mechanism 118 comprises: • an actuation button 123; • the 119 recall organ; • a support element 124; • a rod 125 mounted to slide in the hollow tube and at the end of which, at / on the side of the handling interface 106, the actuating button 123 is mounted, the rod 125 being pierced with an oblong hole 126 crossed by the pivot axis A2 so that said pivot axis A2 does not oppose the sliding of the rod 125 in the hollow tube at least according to a predefined amplitude of sliding of the rod 125 in the hollow tube; • an axis A3 secured to the rod 125 during its sliding in the hollow tube 120, said axis A3 passing through the hollow tube 120 at the level of two oblong openings (not visible in the figures) opposite and defining for example the sliding amplitude of the rod 125 in the hollow tube 120; • guide elements 127 arranged in the plates 121a, 121b (each plate 121a, 121b comprises one of the corresponding guide elements 127), each guide element 127 comprising an arcuate slide 128 for guiding the axis A3 of the indexing mechanism 118 during the pivoting of the hollow tube, and notches 129 formed at the periphery of the slide 128 and opening into the latter so that: the transition from the second configuration of the indexing mechanism 118 to the first configuration of the indexing mechanism 118 is accompanied, for each guide element 127, by the insertion of the axis A3 of the indexing mechanism 118 into one of the notches 129 of said guide element 127 from the slide 128 of said guide element 127;and that the passage from the first configuration of the indexing mechanism 118 to the second configuration of the indexing mechanism 118 is accompanied, for each guide element 127, by the passage of the axis A3 of the indexing mechanism 118 from the notch 129 of said guide element 127 in which it was inserted towards the slide 128 of said guide element 127.; In particular, opposite the actuating button 123, the end of the rod 125 cooperates with the return member 119, such as a compression spring, for example constantly compressed between said end of the rod 125 and the support element 124. This support element 124 may be a plug closing the hollow tube opposite the handling interface 106.

[0154] Therefore, the manipulation of the indexing mechanism 118 can be according to the following kinematics. The axis A3 of the indexing mechanism 118 is engaged in two notches 129 from which it follows that the maintenance of the predefined relative position of the manipulation interface 106 with respect to the supporting structure 104 is ensured. When the operator presses the actuation button 123 this will push the rod 125 into the hollow tube where it will slide until the axis A3 of the indexing mechanism 118 passes from the notches 129 to the slides 128 (passage from the first configuration of the indexing mechanism 118 to the second configuration of the indexing mechanism 118) from which it follows that the pivoting of the manipulation interface 106 is authorized. The operator then only has to pivot the handling interface 106 and as soon as the axis A3 of the indexing mechanism 118 is no longer opposite the notches 129 which he has just left, the operator no longer has to worry about the actuation button 123 because the cooperation with the slides 128 during pivoting keeps the return member 119 compressed. When the pivoting is such that the axis A3 of the indexing mechanism 118 reaches the entrance of two notches 129 respectively of the two plates 121a, 121b, the return member 119 will push the rod 125 and therefore the axis A3 of the indexing mechanism 118 so that the rod 125 slides again and the axis A3 of the indexing mechanism 118 engages in said two notches 129 which results in an automatic passage of the indexing mechanism 118 to the first configuration, thus maintaining the new predefined relative position of the handling interface 106 with respect to the supporting structure 104.Thus, the sliding amplitude of the rod 125 in the hollow tube is notably chosen so as to allow the variation between the first configuration of the indexing mechanism 118 and the second configuration of the indexing mechanism 118.

[0155] In Figures 13 to 15, it is possible to visualize, for each guide element 127, the presence of three notches 129 along the slide 128. The notches 129 opposite and respectively proximal each of one of the longitudinal ends of the slide 128 are the notches 129, one associated with the first configuration of the accessory 100 and the other associated with the second configuration of the accessory 100. For each guide element 127, the notch 129 located between said two opposite notches 129 corresponds to a notch 129 in which the axis A3 of the indexing mechanism 118 is engaged in an intermediate configuration (not shown) making it possible to give a particular angle to the screwing and / or unscrewing device 200 in order to adapt to certain situations where the fastener to be screwed or unscrewing would be at an angle relative to the running plane on the railway track locally at this attachment.

[0156] The slides 128 can condition the amplitude of the degree of mobility.

[0157] According to a particular embodiment, the assembly 300 comprises a carriage 301 (figures 4 and 8), the carriage 301 comprising a rolling system 302 for rolling on the rails 1001, 1002 of the railway track 1000, in particular to be maintained, and an articulated arm 303 at the end of which the accessory 100 is mounted. In particular, this articulated arm 303 is mounted on the elongated element 120 so that the orientation of the supporting structure 104 can be carried out in order to allow the transition to the fish-rigging or screw-pulling configuration while maintaining the handling handle(s) 101 at a height suitable for the operator.

[0158] The articulated arm 303 may comprise a means for relieving the weight of the accessory 100 and the screwing and / or unscrewing device 200, such as a jack.

[0159] The rolling system 302 may comprise at least one wheel 304 for rolling on one of the two rails 1002 and at least one wheel 305 for rolling on the other 1001 of the two rails. A chassis 306 of the rolling system 302 may connect the wheels 304, 305.

[0160] According to one embodiment, the accessory 100 comprises a noise-reducing member 133 intended to cooperate with the screwing and / or unscrewing device 200 in the assembled configuration in order to attenuate the operating noise of the screwing and / or unscrewing device 200. In [Fig. 16], representing the assembly 300, this noise-reducing member 133 is present and cooperates with the screwing and / or unscrewing device 200, for example by partially surrounding the latter.

[0161] The noise-reducing member 133 may be a sleeve or a particular covering placed around the screwing and / or unscrewing device 200 in the assembled configuration.

[0162] According to one embodiment, if the screwing and / or unscrewing device 200 comprises support pads for resting it on the ground, the clamping flange 113 and / or the clamping device 114 may, in the assembled configuration, come into contact with a portion of these support pads or these support pads so that, in the assembled configuration, all or part of the support pads participate in the vibration decoupling.

[0163] The accessory 100 may comprise ground support elements 140 ([Fig.2]) for example four in number and mounted on the supporting structure 104. These support elements 140 allow the accessory 100 to be placed on the ground without damaging it.

[0164] The present invention clearly finds an industrial application in the railway field and in particular in the maintenance of railway tracks.

Claims

Claims

1. Accessory (100) for a screwing and / or unscrewing device (200) for a railway track fastener, the screwing and / or unscrewing device (200) comprising: • a gripping member (201); • a control actuator (202) for controlling a function of the screwing and / or unscrewing device (200); the accessory (100) comprising: • a handling handle (101); • a control member (102); • a coupling device (103) connected to the control member (102) and configured to be connected to the screwing and / or unscrewing device (200) to propagate an actuation of the control member (102) to the screwing and / or unscrewing device (200); • a supporting structure (104) secured to the handling handle (101) and the control member (102);• a coupling system (105) configured to allow the screwing and / or unscrewing device (200) to be assembled in a removable manner to the supporting structure (104) and to ensure, in an assembled configuration of the screwing and / or unscrewing device (200) to the supporting structure (104), vibration decoupling between the handling handle (101) and the gripping member (201).;

2. Accessory (100) according to claim 1, wherein the coupling device (103) is configured to, when said coupling device (103) is connected to the screwing and / or unscrewing device (200): • mechanically propagate the actuation of the control member (102) to the control actuator (202); or • authorize propagation of an electrical control signal, upon actuation of the control member (102), directly to the screwing and / or unscrewing device (200); or • propagate, upon actuation of the control member (102), an electrical control signal generated by the accessory (100) to a configured actuation device (108) to ensure mechanical actuation of the control actuator (202) following receipt of the electrical control signal by said actuation device (108), the coupling device (103) comprising the actuation device (108); or • propagate a radioelectric actuation signal generated by the accessory (100), upon actuation of the control member (102), directly to the screwing and / or unscrewing device (200); • propagate a radioelectric actuation signal generated by the accessory (100), upon actuation of the control member (102), to an actuation device configured to ensure mechanical actuation of the control actuator (202) following receipt of the electrical actuation signal by said actuation device, the coupling device (103) comprising the actuation device.

3. Accessory (100) according to any one of claims 1 to 2, wherein the coupling system (105) comprises a clamping flange (113) configured to, in the assembled configuration, grip the screwing and / or unscrewing device (200).

4. Accessory (100) according to claim 3, in which the coupling system (105) comprises a clamping device (114), distinct from the clamping flange (113), configured to, in the assembled configuration, grip the screwing and / or unscrewing device (200).

5. Accessory (100) according to any one of claims 3 to 4, wherein the coupling system (105) is configured so as to ensure a first vibration decoupling at a region receiving the screwing and / or unscrewing device (200) within the clamping flange (113) and a second vibration decoupling between the clamping flange (113) and the supporting structure (104).

6. Accessory (100) according to any one of claims 1 to 5, wherein the coupling system (105) comprises at least one damping member (115a, 115b, 115c, 115d) configured to oppose, in the assembled configuration, the transmission of vibrations between the screwing and / or unscrewing device (200) and the supporting structure (104).

7. Accessory (100) according to claim 6, wherein the coupling system (105) comprises a plurality of damping members (115a, 115b, 115c, 115d).

8. Accessory (100) according to claim 7 and any one of claims 4 to 5, wherein: • the clamping flange (113) has a closed configuration in which two parts (116a, 116b) of the clamping flange (113) are biased towards each other with the interposition of at least one first damping member (115b) of the plurality of damping members (115a, 115b, 115c, 115d); • the clamping flange (113) comprises at least one second damping member (115a) of the plurality of damping members (115a, 115b, 115c, 115d), said second damping member (115a) being configured to, in the closed configuration of the clamping flange (113) and in the assembled configuration, be in contact with the screwing and / or unscrewing device (200) in order to participate in maintaining the screwing and / or unscrewing device (200) in the clamping flange (113);• the clamping flange (113) is connected to the carrier structure (104) at least via at least one third damping member (115c) of the plurality of damping members (115a, 115b, 115c, 115d);

9. Accessory (100) according to claim 4 and any one of claims 7 to 8 or according to claims 4 and 5 and any one of claims 7 to 8, wherein the clamping device (114) comprises two parts (117a, 117b) configured to be biased, in a closed configuration of the clamping device (114), one towards the other so as to locally grip, in the assembled configuration, the screwing and / or unscrewing device (200), one of said two parts (117a, 117b) being fixed to the supporting structure (104) at least by means of at least one of the damping members (115d) of the plurality of damping members (115a, 115b, 115c, 115d).

10. Accessory (100) according to claims 8 and 9, in which the screwing and / or unscrewing device (200), intended to be assembled with the accessory (100), comprises a motor (203), a shock mechanism (206) and a connecting part (208) connecting the motor (203) and the shock mechanism (206), and wherein: • the clamping flange (113) is shaped to be mounted on a part of the screwing and / or unscrewing device (200) chosen from: • the connecting part (208); • the engine (203); • the shock mechanism (206); • the clamping device (114) is shaped to be mounted at the level of the gripping member (201).

11. Accessory (100) according to any one of claims 1 to 10, comprising a handling interface (106), the handling interface (106) comprising the control member (102) and the handling handle (101), the handling interface (106) being mounted according to at least one degree of mobility relative to the supporting structure (104), the accessory (100) comprising an indexing mechanism (118) configured to allow the positioning of the handling interface (106) relative to the supporting structure (104) according to at least two different predefined relative positions, said indexing mechanism (118) being configured so as to have: • a first configuration in which it maintains the positioning of the handling interface (106) relative to the supporting structure (104) when the relative positioning between the handling interface (106) and the supporting structure (104) is in any one of the predefined relative positions; • a second configuration in which the degree of mobility of the manipulation interface (106) relative to the carrier structure (104) is permitted.

12. Accessory (100) according to claim 11, in which the indexing mechanism (118) comprises a return member (119) configured to vary the indexing mechanism (118) automatically from its second configuration to its first configuration when the relative positioning between the handling interface (106) and the supporting structure (104) corresponds to any one of the predefined relative positions

13. Assembly (300) comprising a screwing and / or unscrewing device (200) for a railway track fastener and an accessory (100) according to any one of claims 1 to 12, the screwing and / or unscrewing device (200) comprising a gripping member (201) and a control actuator (202) for controlling a function of the screwing and / or unscrewing device (200), in which: • the coupling device (103) is connected to the screwing and / or unscrewing device (200); • the assembly (300) is in the assembled configuration in which the screwing and / or unscrewing device (200) and the supporting structure (104) are assembled in a removable manner by the coupling system (105) which ensures vibration decoupling between the handling handle (101) and the gripping member (201).

14. Assembly (300) according to claim 13, comprising a trolley (301), the trolley (301) comprising a rolling system (302) for rolling on the rails (1001, 1002) of the railway track (1000) to be maintained and an articulated arm at the end of which the accessory (100) is mounted.

Images