FR2928493A1 - Electrical switchgear mechanism for forming connection terminal strip of electric power cable of electric apparatus, has attachment lugs of rigid plate covering template of base across lateral wall of base in exit position of plate - Google Patents

Abstract

The mechanism (100) has a base (10) provided with a rigid small plate (40) on a switchgear support. The plate is placed in the base in a translational movable manner in a plan parallel to a front surface (38) of the mechanism between entry and exit positions. The plate is contained in a template of the base in the raised position and attachment lugs (43) of the plate cover the template across a lateral wall (11) of the base in the exit position. A locking unit formed of threaded orifice and threaded body (52) locks the plate in the exit position against the support.

Description

TECHNICAL FIELD TO WHICH THE INVENTION RELATES The present invention relates to an electrical equipment mechanism comprising a base equipped with mounting means on a support of electrical equipment.

It finds a particularly advantageous application in the production of a terminal block for connecting a power supply cable comprising a cable clamp ensuring the maintenance of said power supply cable against the base of said terminal block. TECHNOLOGICAL BACKGROUND Electrical appliances receiving a high intensity current such as heaters or appliances such as electric ovens, washing machines or dishwashers, are powered by means of an electric cable. large section permanently connected to a switchgear mechanism powered by a specific line of the electrical network. t5 The maintenance of this electrical cable on the base of the fitting mechanism is generally ensured by a cable clamp. Typically, the equipment mechanism comprises a base equipped with mounting means on an equipment support in the form of a frame attached to the inside of a box or box 20 for projecting. The mounting means of the base comprise, on the one hand, detent teeth carried by flexible tabs provided on two opposite external faces of the base, and, on the other hand, a counter-stop adapted to bear on the face. before the equipment support. When the base of the equipment mechanism is engaged through the opening of the equipment support, its detent teeth hook under the support while its abutment bears against the front face of the latter. The main disadvantage of such an equipment mechanism lies in the fact that the attachment of its base to the equipment support has a relatively low resistance to tearing. Consequently, if the high section electrical cable, which is permanently connected to this equipment mechanism, is pulled violently, it is possible to cause the base of the fitting mechanism to disengage and the latter to tear it out of position. equipment support.

OBJECT OF THE INVENTION In order to solve this disadvantage of the state of the art, the present invention proposes an apparatus mechanism whose base is equipped with resistant mounting means, easy to use and whose implementation prevents the removal of the equipment mechanism from the apparatus support. For this purpose, according to the invention, an apparatus mechanism as defined in the introduction is proposed, wherein said mounting means comprise a rigid plate housed in said base movably in translation in a plane parallel to a front face of said mechanism. apparatus between a retracted position in which said wafer is contained in the template of the base and an output position in which a hooking portion of said wafer protrudes from the template of the base through a side wall of said base. Advantageously, thanks to the invention, the plate in the retracted position allows the mounting and dismounting of the base through an opening of the equipment support, and the plate in the output position blocks the extraction of the base from said support. Indeed, the equipment support is generally in the form of a flat frame which extends parallel to the front face of the equipment mechanism (that is to say in a plane parallel to that of said plate ). Each opening of the equipment support has a width substantially equal, with the game, to the width of the template of the base. Thus, when the plate of the fitting mechanism according to the invention, mounted on the equipment support, is placed in the output position, it projects out of the template of the base opposite the rear face of the fitting support. . This plate is then plate against this rear face if one tries to extract the equipment mechanism out of the equipment support. The material in which said wafer is made is a very strong material mechanically so that the wafer pressed against the rear face of the equipment support does not bend. According to a first advantageous characteristic of the electrical equipment mechanism according to the invention, there is provided means for returning the wafer adapted to permanently push said wafer towards its output position.

Thus, advantageously, in the equipment mechanism according to the invention, the stable position of said wafer is its output position. When mounting the equipment mechanism in the opening of the equipment support, this plate is pushed inside the base, against the return force exerted by said biasing means, by an edge of said support against which she takes a slippery support. As soon as the plate is no longer resting against the edge of the equipment support because the base is completely inserted through the opening of the latter, the plate is automatically pushed by said return means to its output position of hold on the support. Thanks to its return means, mounting the gear mechanism according to the invention on the equipment support is very simple.

According to another advantageous characteristic of the electrical equipment mechanism according to the invention, said return means comprise at least one flexible return tongue inserted inside the base. These return means are compact and inexpensive. According to another advantageous characteristic of the electrical equipment mechanism according to the invention, there is provided a hubcap mounted on said front face of the equipment mechanism comprising each flexible return tongue. Each flexible return tongue can be obtained by forming with the hubcap, by molding a plastic material.

Preferably, said hubcap forms a cradle for receiving an electric cable. This receiving cradle guides the electrical cable to be clamped in the cable clamp and facilitates its electrical connection to the fitting mechanism.

According to another advantageous characteristic of the electrical equipment mechanism according to the invention, there is provided a cover closing said base and comprising said flexible return tongue. Each tab can be obtained by forming with the cover, by molding a plastic material.

According to another advantageous characteristic of the electrical equipment mechanism according to the invention, said plate is metallic. The wafer then has optimum mechanical strength. According to another advantageous characteristic of the electrical equipment mechanism according to the invention, said plate is a one-piece piece made by cutting, drilling and folding a metal plate. Alternatively, said wafer is made of plastic.

Advantageously then, each flexible return tongue and said plate form a one-piece piece made by molding. The assembly comprising each flexible return tongue and the wafer can be formed with the bonnet or with the hubcap.

According to another advantageous characteristic of the electrical equipment mechanism according to the invention, there is provided means for locking said plate in its output position against the electrical equipment support. Said wafer being locked in its output position against the support of electrical equipment, the risk of tearing of the electrical mechanism out of the equipment support is limited. According to another advantageous characteristic of the electrical equipment mechanism according to the invention, said plate comprises two threaded holes adapted to receive screws for fixing a flange of a cable clamp.

By screwing the fastening screws of the clamp of the cable clamp through the plate, the hooking part thereof is strongly pressed against the rear face of the support, in a locked position. To extract the equipment mechanism according to the invention out of the equipment support, the user must move the wafer back into its retracted position. For this purpose, it unscrews the fixing screws of the clamp of the cable clamp and disconnects the electrical power cable with a large section of the equipment mechanism, which ensures that it can be extracted safely. According to another advantageous characteristic of the electrical equipment mechanism according to the invention, said flange is permanently connected by a link to an insulating part of the fitting mechanism. The flange is then advantageously captive. The link makes it possible to never completely dissociate the flange of the fitting mechanism while allowing its movement to allow the easy connection of the electrical cable to the terminals of the fitting mechanism.

Preferably, said link is a rod connected at one of its ends to said flange, adapted to slide through an opening passing through said insulating part of the fitting mechanism, and having at its other end a bulge of greater width than the diameter of said opening. Alternatively, said link is a flexible link coming from training with the flange. This link can advantageously be attached to the hood of the fitting mechanism. According to another advantageous characteristic of the electrical equipment mechanism according to the invention, said wafer comprises at least a first inclined ramp adapted to slide on a part of the equipment support during the insertion of the fitting mechanism into an opening of it to roll back said plate from its output position to its retracted position. This inclined ramp facilitates the insertion of the wafer inside the base of the equipment mechanism during the mounting operation of the latter 0 on the equipment support. According to another advantageous characteristic of the electrical equipment mechanism according to the invention, said plate comprises at least a second inclined ramp adapted to slide on another part of the equipment support during the extraction of the equipment mechanism of the latter. to backtrack said wafer from its output position to its retracted position. This inclined ramp facilitates the insertion of the wafer inside the base of the equipment mechanism during the disassembly operation of the latter out of the equipment support. According to another advantageous characteristic of the electrical equipment mechanism 20 according to the invention, the attachment portion of said plate comprises at least one of its two ends an individual element having a double inclined ramp. This preferred arrangement makes it possible to push the wafer uniformly towards its retracted position and to prevent it from getting caught in the base of the fitting mechanism when it disappears to allow the base to be placed on the apparatus support and the extraction of this base from said support. Preferably, each individual element has a beveled rear edge forming said first inclined ramp and a beveled front edge forming said second inclined ramp. According to another advantageous characteristic of the electrical equipment mechanism according to the invention, said wafer comprises a falling wall situated opposite the hooking portion and disposed facing a through opening of said side wall of the base. The user can then advantageously press said falling wall through the through opening to retract the wafer in the retracted position and allow the extraction of the equipment mechanism from the apparatus support. According to another advantageous characteristic of the electrical equipment mechanism according to the invention, there is provided stop means limiting the translational movement of the wafer. The translational movement of the wafer is limited to ensure correct use of the wafer: thus, when the wafer moves back inside the base, it does not excessively deform the return means that could be damaged, and, when the wafer resumes its stable output position, it does not come out of the base completely. According to another advantageous characteristic of the electrical equipment mechanism according to the invention, said stop means comprise a rear stop adapted to cooperate with said falling wall to limit the backward movement of the wafer inside the base.

This rear stop extends for example from a rear face of the hood of the fitting mechanism. According to another advantageous characteristic of the electrical equipment mechanism according to the invention, said abutment means comprise a front stop adapted to cooperate with said attachment portion to limit the movement of the wafer outlet outside the base. This front stop is for example made by the side wall of the base through which the plate protrudes. According to another advantageous characteristic of the electrical equipment mechanism according to the invention, said attachment portion of said plate comprises indentations formed in a longitudinal edge which delimit fastening tabs whose front faces form bearing faces of said hooking portion against the apparatus support. In the output position, the hooking tabs protrude from the template of the base through openings provided in a side wall of the base. When the plate is screwed into the support by the fixing screws of the clamp of the cable clamp, the front faces of the hooking tabs are pressed against the rear face of the equipment support to block the fitting mechanism. and prevent any breakage of it. These attachment tabs being distributed over the entire length of the wafer, they offer a large contact surface 35 with the equipment support and thus a high resistance to tearing. According to another advantageous characteristic of the electrical equipment mechanism according to the invention, it constitutes a terminal block for connecting a power supply cable of an electrical appliance. According to another advantageous characteristic of the electrical equipment mechanism according to the invention, it belongs to an electrical assembly comprising another electrical switchgear mechanism. DETAILED DESCRIPTION OF AN EXEMPLARY EMBODIMENT The following description, with reference to the appended drawings, given by way of non-limiting example, will make it clear what the invention consists of and how it can be achieved. In the accompanying drawings: FIG. 1 is a schematic semi-exploded view in front perspective of the apparatus mechanism according to the invention; FIG. 2 is a schematic view of the front face of a plate of the equipment mechanism of FIG. 1; Figure 3 is a partial diagrammatic view of the trim of the fitting mechanism of Figure 1; - Figure 4 is a schematic bottom view of the plate of the fitting mechanism of Figure 1 in the retracted position; Figure 5 is a schematic top view of the wafer of the switchgear mechanism of Figure 1 in the output position; FIG. 6 is a fragmentary diagrammatic view from above of the apparatus mechanism of FIG. 1; Figure 7 is an assembled view of Figure 6; FIG. 8 is a partial diagrammatic view of the front of the fitting mechanism of FIG. 1 without the clamp of the cable clamp, before it is mounted on an equipment support, with the wafer in the output position; FIG. 9 is a view similar to that of FIG. 8 without the equipment support showing the equipment mechanism during its assembly on the equipment support, with the plate in the retracted position; FIG. 10 is a partial schematic view of the rear of the apparatus mechanism of FIG. 1 during its insertion into the support, with the plate in the retracted position; FIG. 11 is a view similar to that of FIG. 10 after insertion of the equipment mechanism into the support, with the wafer in the output position; - Figure 12 is a side view of the fitting mechanism of Figure 1 inserted into its support, before tightening the clamping screws of the clamp of the cable clamp; - Figure 13 is a view similar to that of Figure 12 after tightening the fastening screws of the clamp of the cable clamp; FIG. 14 is a detailed view of the cable clamp of the fitting mechanism in which the flange is moved away from the holder of the cable clamp; and FIG. 15 is a view similar to that of FIG. 14 of the cable clamp of the fitting mechanism in which the flange is put in place on the support of the cable clamp.

FIG. 1 partially shows an apparatus mechanism 100. This equipment mechanism 100 comprises a base 10 of insulating material which houses the electrical connection elements (not visible in the figures) of the fitting mechanism. .

This base 10, which constitutes the rear part of the equipment mechanism 100, is closed at the front by a cover 30 mounted on the base 10. In a conventional manner, this equipment mechanism 100 is intended to be mounted in an opening 66 of an electrical equipment support 60 shown more particularly in Figures 8, 10 and 11, to be housed in a mounting box or a box for projecting (not shown in the figures). In the remainder of the description, the term "back" will be used to describe an element of the equipment mechanism 100 or of the equipment support 60 oriented towards the bottom of the box accommodating said equipment mechanism and the term before will designate an oriented element. in an opposite direction. The equipment support 60 is in the form of a flat frame 61 which internally delimits at least one central opening 66. This flat frame 61 is intended to be attached to the front of the recess box or the box for projecting installation (not shown in the figures). The opening 66 of the equipment support 60 has dimensions adapted, with the clearance, to the template of the base 10, at least in a transverse direction, to allow a joined assembly of the fitting mechanism 100 in said opening 66 of the support equipment 60.

As shown in Figures 10 and 11, the equipment support 60 has on its rear face 62 a rib 63 which runs along the two parallel longitudinal edges of the opening 66 of the equipment support 60. It also comprises, on the side of its front face, a sidewalk (not visible in the figures) which projects into the opening 66, along each longitudinal edge thereof.

A finishing plate (not shown) is conventionally attached to the equipment support 60. For its mounting, the base 10 of the equipment mechanism 100 is equipped with mounting means 40 on said equipment support 60. Remarkably these mounting means 40 comprise a rigid plate 40 (shown more particularly in FIG. 2) housed in said base 10 in a translationally mobile manner in a plane parallel to a front face 38 of the fitting mechanism 100 between a retracted position, shown more particularly in Figures 9 and 10, wherein said plate 40 is contained in the template of the base 10, and an output position, shown more particularly in Figures 8 and 11, wherein a latching portion 43 of said plate 40 protrudes from the template of the base 10 through a side wall 11 of the base 10. The base 10 is a housing having a bottom 18 visible in the figures 5, 10 and 11 and side walls, the side wall 11 through which protrudes said wafer 40 (see Figure 1). Preferably, the base 10 also comprises, as mounting means, one or more ratchet teeth (not visible in the figures) carried by an outer face of flexible lugs provided in a side wall opposite to said side wall 11 of the base 10.

The base 10 has on the front face a rectangular opening 19, visible in Figure 5, which is bordered by a flange 191 extending outwardly of the base 10 substantially parallel to the plane of said opening 19. Near the opening 19 of the base 10, said side wall 11 forms a shoulder 111 (see Figures 10 and 11).

As shown more particularly in Figure 2, the wafer 40 has an elongated shape, generally rectangular. It comprises a longitudinal front edge 45 provided with crenellations or indentations 42 which delimit three attachment tabs 43. Each end of this longitudinal front edge 45 comprises a hook 44 oriented perpendicularly to the plane of the plate 40.

Each hook is a triangular shaped element, with a straight edge 441, extending perpendicular to the plane formed by the wafer 40 from a rear face of the wafer 40, and two wafers 443 and 442 beforehand relative to at this level. As will be described in more detail later, the front 443 and rear 442 slices form inclined ramps located below the plane formed by the rear face of the wafer 40. The wafer 40 has, opposite the front longitudinal edge 45, a rear longitudinal edge 49 from which extends a falling wall 48. This falling wall 48 is situated on the rear face side of said wafer 40. It is centered on said rear longitudinal edge 49 of wafer 40.

Finally, the plate 40 has, at each of its ends, a threaded orifice 47 passing through. The wafer 40 is here an independent piece. It is preferably made of a metallic material giving it good rigidity and therefore optimum mechanical strength. It is preferably a one-piece piece made by cutting, drilling and folding a metal plate. Alternatively, it may be made of another rigid material, for example plastic. The advantage of the metallic material with respect to the plastic material is that it makes it possible to produce a thin wafer 40 which nevertheless has the desired rigidity, whereas the plastic material requires a greater thickness for the wafer in order to obtain the desired thickness. rigidity sought. The plate 40 is housed in the base 10 as is more particularly shown in Figure 5. In this Figure 5, the wafer is shown in the output position.

The wafer 40 here rests on the front face of the shoulder 111 of the side wall 11. As shown in this figure 5 and 8, 9, 12 and 13, the side wall 11 of the base 10 is pierced with openings 12 in which the latching lugs 43 and the hooks 44 of the wafer 40 are arranged, so that when the wafer 40 moves in translation from its retracted position towards its exit position, the hooking lugs 43 and the hooks 44 of the wafer 40 pass through these openings 12 to protrude from the template of the base 10 of the equipment mechanism 100. In the output position, the threaded orifices 47 of the wafer 40 are positioned facing each other. orifices 16 passing through the shoulder 111 of the side wall 11. As shown more particularly in FIGS. 10 and 11, the openings 12 through which the hooks 44 of the wafer 40 emerge on the outside are extended by cut-out slots 445in the shoulder 111 of the side wall 11. These slots 445 accommodate said hooks 44 when the plate 40 is in the retracted position (see Figure 10).

The inner face 431 of the side wall 11 forms a front stop which limits the translational movement of the wafer 40 to prevent the wafer 40 from completely emerging from the base 10. Said side wall 11 also has an opening 15, here of rectangular shape, placed near the rear face of the shoulder 111.

The cover 30 which closes the opening 19 of the base 10 is in the form of a plate 301 of which a front face 38 here constitutes the front face 38 of the fitting mechanism 100 (see FIG. 1). It is made of insulating material. The cover 30 protrudes on its front face 38 a cable support 33 and a connection block 31. The front face 38 of the cover 30 is hollowed out with grooves 39 adapted to guide the electrical conductors of the power supply cable ( not shown) to connection ports 35 located at the base of the connection block 31, within which are the input of the electrical connection terminals of the equipment mechanism 100 (see Figures 8 and 9). As shown in FIGS. 8 and 9, the connection block 31 has threaded engagement funnels 32 communicating with the connection orifices 35 and housing clamping screws whose head is accessible to the user on the front face of the block. connection 31. As shown more particularly in FIG. 6, between the support of the cable 33 and the connection block 31, the plate 301 of the cover 30 is pierced with two orifices 23 which open at right angles to the rear longitudinal edge 49 of the plate 40 placed in the output position in the base 10. As shown in Figure 4, the cover 30 carries on its rear face facing the base 10 of the uprights 34 which extend perpendicularly to this rear face. These uprights 34 are placed in the base 2 0 opposite the falling wall 48 of the wafer 40 and form a rear stop which limits the amplitude of the translational movement of translation of the wafer 40 in the base 10. Moreover, the cable support 33 comprises two orifices 36 which pass through the cover 30 and which are intended to receive fastening screws whose threaded bodies 52 are engaged through two holes 53 of a flange 51 to form a greenhouse -cable 50 (see Figure 1).

When the wafer 40 is placed in the output position in the base 10, its threaded orifices 47 are placed opposite the orifices 36 of the cable support 33 so that the threaded bodies 52 of the fixing screws of the flange 51 which pass through these orifices. 36 are screwed into said threaded holes 47 of the wafer 40, through the orifices 16 of the shoulder 111 of the side wall 11 of the base 10. The fitting mechanism 100 also comprises a trim 20 attached to said front face of the Apparatus mechanism 100. Said hubcap 20 is more particularly shown in Figures 1, 3, 6, 7, 8 and 9. It is in the form of a plate 26 which partially covers the front face 38 of the cover 30. This plate 26 is bordered by a peripheral side wall 25, 28 whose free edge bears on the cover 30. The plate 26 has an opening 27 through which the cable support 33 of the cable tie 50 and the connecting block 31 of the cover 30.

The hubcap 20 carries a cradle 21 positioned in front of the cable support 33. This cradle 21 is adapted to guide the power supply cable received by the cable support 33. Advantageously, this hubcap 20 here comprises two flexible tongues 22 of recall intended to be inserted inside the base 10 through the orifices 23 of the plate 301 of the cover 30. These flexible return tongues 22 are integral with an amount 24 of the hubcap 20 which passes through the opening 27 (see Figures 6 and 7). In the assembly mechanism 100 assembled, the flexible return tongues 22 are positioned against the rear longitudinal edge 49 of the wafer 40 and continuously push said wafer 40 towards its output position. The flexible return tongues 22 are preferably made of plastics material, and are formed with the hubcap 20. Of course, according to a variant not shown, provision could be made for the flexible return tongues to be integral with the hood. They are then obtained by forming with the cover, for example by molding. Alternatively, the flexible return tongues may be independent parts attached to the hubcap or the rear face of the hood. According to another variant not shown, it can be provided that each: flexible return tongue and the plate are bonded to one another and integral with the hubcap or hood. The connection between the flexible return tongues and the wafer then forms a hinge. The plate, the flexible return tongues and the cover or the hubcap then form for example a one-piece piece that can be obtained by molding. A reduction in the thickness of this monobloc piece at the connection between the flexible return tongues and the wafer makes it possible, for example, to easily produce this hinge. Finally, it can be envisaged that each tongue and the plate form an independent piece integral attached to the hubcap or hood. This monobloc piece can be made for example of plastic or metal. The connection between the flexible return tongues and the wafer then also forms a hinge which can be achieved by reducing the thickness of this one-piece piece at this connection. Figure 8 shows the fitting mechanism according to the invention without the clamp of the cable clamp. In this figure, the equipment mechanism 100 is ready to be inserted into the opening 66 of the equipment support 60. The equipment mechanism 100 is assembled: the plate 40 is in place in the base 10 of the mechanism apparatus 100 which is closed by the hood 30. The hubcap 20 is attached to the front face 38 of the cover 30 of the gear mechanism 100 and the flexible return tongues 22 are inserted into the base 10 through the holes 23 of the hood 30. The flexible return tongues 22 push the wafer 40 into its stable output position. In this output position, the latches 43 and the hooks 44 of the wafer 40 project through the openings 12 of the side wall 11 of the base 10. When the user inserts the fitting mechanism 100 into the opening 66 of the equipment support 60, the rear slices 442 of the hooks 44 which protrude outside the template of the base come into contact with the sidewalk which runs along the longitudinal edge of the opening 66 of the equipment support 60. The wafer rear 442 hooks 44 of the plate 40 forms an inclined ramp which slides on the sidewalk of the equipment support 60 by moving the plate 40 by a translational movement inside the base 10 to its retracted position. In this retracted position, the plate 40 pushes the flexible return tabs 22 of the hubcap 20 which flex. The decline of the wafer 40 is limited by the uprights 34 of the cover 30 which form a rear stop: when the falling wall 48 of the wafer 40 comes into contact with these uprights 34, the wafer 40 is moved back up to: Inside the base 10. The position of the uprights 34 in the base 10 is determined so that the deformation of the flexible return tongues 22 generated by the recoil movement in translation of the wafer 40 remains an elastic deformation which does not cause damage to said flexible return tongues 22.

In the retracted position, the hooking tabs 43 and the hooks 44 of the wafer 40 are located inside the template of the base 10. The hooks 44 are moved back into the slots 445 cut in the shoulder 111. Thus, the base 10 can be easily fully inserted into the aperture 66 of the equipment support 60, as shown in FIGS. 9 and 10.

During this insertion, the plate 40 is locked between the sidewalk of the opening 66 of the equipment support 60 and the flexible tongues 22 return. As can be seen in FIG. 10, in this retracted position of the wafer 40, the threaded orifices 47 of this wafer 40 are not placed opposite the orifices 16 passing through the shoulder 111 of the side wall 11 As soon as the wafer 40 has passed through the thickness of the equipment support 60 and is no longer blocked by the curb of the opening 66 of this equipment support 60, the flexible return tongues 22, exerting a permanent restoring force on the rear longitudinal edge 49 of said wafer 40 pushes it towards its output position by translational movement towards the outside of the base 10. The internal face 431 of the side wall 11 then limits the movement in translation of the output of the wafer 40 towards the outside of the base 10: when the part of the front longitudinal edge 45 of the wafer 40 situated at the bottom of the indentations 42 comes into contact with this internal face 431, the wafer 40 is stopped in her stable output position. As shown in FIG. 11, the latching tabs 43 of the plate 40 then project from the base 10 through the openings 12 of the lateral wall 11, under a rear face 65, at the bottom of battlements 64 of the rib. 0 63 of the equipment support 60. These slots 64 prevent lateral movement of the wafer 40 along the longitudinal edges of the opening 66 of the equipment support 60. In this output position, the hooks 44 of the wafer 40 also project from the base 10 under the rib 63 of the equipment support 60. 2; 5 In this position, the threaded orifices 47 of the wafer 40 are placed opposite the orifices 16 passing through the shoulder 111 of the lateral wall 11 and the falling wall 48 is placed opposite the rectangular opening 15 of the side wall 11 of the base 10 (FIG. 12). While the wafer 40 is automatically pushed into the output position by the flexible return tongues 22, the snap teeth of the clipping lugs carried by the opposite side wall of the base 10 cling to the rib 63 of the equipment support. 60. These ratchet teeth also participate in maintaining the base 10 on the equipment support 60. The rear face of the flange 191 of the base 10 of the equipment mechanism 100 forms a counter-stop that bears against the front face the sidewalk bordering the opening 66 of the equipment support 60 to prevent the depression of the base 10 in the receiving box (recess or for surface mounting) and ensure a joined assembly of the fitting mechanism 100 in the opening 66 of the equipment support 60. The equipment mechanism 100 being held on the equipment support 60, the user can then bring the equipment support 60 on the front face of the box 60 the mounting plate or the selected mounting box and place the finishing plate on the equipment support 60 around the hubcap 20. Then, the user makes the electrical connection of a power cable to the block for connection, it places the electrical cable on the cradle 21 of the hubcap 20, which guides said cable to a central zone 37 of the cable support 33 of the cable clamp 50 which has anti-slip pimples. It inserts the stripped ends of the electrical conductors of said cable into the connection holes 35 of the connection block 31. The tightening of the clamping screws housed in the engagement funnels 32 blocks these stripped ends against the electrical contacts of the connection block 31. It then screws the threaded bodies 52 of the fixing screws of the flange 51 of the cable clamp 50 into the threaded holes 47 of the wafer 40, through the orifices 2; 0 53 of the flange 51, the orifices 36 of the cable support 33 and the orifices 16 through the shoulder 111 of the side wall 11 of the base 10. When screwing the fastening screws of the flange 51, the plate 40 back slightly towards the cover 30, in a translation movement in a perpendicular direction in the plane of this wafer 40. The front faces of the hooking lugs 43 of the wafer 40 are then plated at the bottom of the crenellations 64 of the rib 63 of the equipment support 60 (FIG. 13). The wafer 40 is thus locked on the equipment support 60 and prevents any tearing of the equipment mechanism 100 from it. The openings 12 of the side wall 11 of the base 10 have a height greater than that of the attachment lugs 43, so as to allow the translational movement of the wafer 40 perpendicular to the plane of the front face 38 of the fitting mechanism 100 , which can be seen in FIG. 1. The hooking tabs 43 have front faces of large areas, which optimizes the contact with the bottom of the crenellations 64 of the rib 63 of the equipment support 60 and reinforces the maintenance of the mechanism. 100 to the equipment support 60. In order to extract the equipment mechanism 100 from the equipment support 60, the user unscrews and removes the fixing screws 52, removes the flange 51, disconnects the cable electrical connection block 31 and disassembles the equipment support 60 of the recess box or the box projecting on the receiving wall. Advantageously, said flange 51 is permanently connected to the equipment mechanism by a link here in the form of a flexible rod 54 of cylindrical shape connected at one of its ends 55 to a lateral face 56 of said flange 51 as shown in FIGS. 14 and 15. The end 55 comprises a flat part enabling this end 55 to be pressed against the support 33 of the cable clamp 50 when the flange 51 is in place on the support 33 as represented in FIG. 15. The rod 54 slides in a guide 541 and through an opening 17 through the shoulder 111 of the side wall 11 of the base 10. The guide 541 preferably has the shape of a longitudinally open tube and attached to the rear face the cover 30 which opens on an orifice 542 through the cover 30 near the support 33 of the cable clamp 50. As shown in Figures 1, 12 and 13, the other end of the rod 54 has a bulge 57 do nt the diameter is greater than that of the opening 17, whose free end comprises a chamfer. This chamfer allows the insertion of the rod 54 in the opening 17 of the front face towards the rear face of the shoulder 111 by local deformation of the bulge 57. The passage of this bulge 57 from the rear face to the front face of the the shoulder 111 is blocked against by the bulge 57. The rod 54 can not be dissociated from the base 10, and the flange 51 is advantageously captive.

The rod 54 is free to rotate and translate in the opening 17 and the guide 541, which allows a distance of the flange 51 of the support 33 of the cable clamp 50 when the electric cable is installed on the support 33 of the clamp. cable 50 for easy placement of the flange 51 around this cable.

Alternatively, the connection between the flange and the equipment mechanism is a flexible link coming from forming with the flange and attached to an insulating part of the equipment mechanism 100 to said fitting mechanism, for example to the hood. To extract the equipment mechanism 100 out of the equipment support 60, the installer uses the tip of a tool to access the falling wall 48 through the rectangular opening of the side wall 11 of the base 10 and pushing said plate 40 inside the base 10 in its retracted position. When the user pushes on said falling wall 48, the front edge 443 of the hooks 44 of the wafer 40 forms an inclined ramp which slides on the rear face 65 of the rib 63 of the equipment support 60 to push back the wafer 40 by a translation movement inside the base 10 to its retracted position. Once the wafer 40 has been placed in the retracted position, the equipment mechanism 100 can be easily extracted from the equipment support 60. The equipment mechanism 100 described here constitutes an electrical cable connection terminal block particularly suitable for receiving electrical equipment. a large diameter cable used, for example, for powering an electrical appliance receiving a high intensity current.

This equipment mechanism 100 advantageously belongs to an electrical assembly comprising an electrical switchgear apparatus adapted to use said terminal block safely. Thus, advantageously, the base 10 of the equipment mechanism 100 accommodates not only the connection terminals of the terminal block, but also the connection elements of the breaking mechanism. The cover 30 of the equipment mechanism leaves emerge on the front face an actuating key (not visible in the figures) of the cut-off mechanism so that it is accessible to the user. Alternatively, said base of the equipment mechanism can be dedicated to the reception of this equipment mechanism constituting a terminal block. Said base then comprises means of mechanical matching to the base of a mechanism 18 of electrical switchgear apparatus and electrical connection means allowing the electrical connection of these two equipment mechanisms. The present invention is not limited to the embodiments described and shown, but the skilled person will be able to make any variant within his mind. One can for example provide other biasing means of the wafer in the output position, for example a compression spring.

Claims (26)

1. Mechanism (100) of electrical equipment comprising a base (10) equipped with mounting means (40) on a support of electrical equipment (60), characterized in that said mounting means (40) comprise a plate ( 40) rigidly housed in said base (10) in a translationally mobile manner in a plane parallel to a front face (38) of said gearing mechanism (100) between a retracted position in which said plate (40) is contained in the jig of the base (10) and an outlet position in which a hooking part (43) of said plate (40) projects from the template of the base (10) through a side wall (11) of said base (10) . 2. Mechanism (100) of electrical equipment according to the preceding claim, wherein there is provided return means (22) of the wafer (40) adapted to permanently push said wafer (40) to its output position. 3. mechanism (100) of electrical equipment according to the preceding claim, wherein said biasing means (22) comprise at least one tongue (22) flexible return inserted into the base (10). 4. Mechanism (100) of electrical equipment according to the preceding claim, wherein there is provided a hubcap (20) mounted on said front face (38) of the gear mechanism (100) comprising each tongue (22) flexible return . 5. Mechanism (100) of electrical equipment according to the preceding claim, wherein said hubcap (20) forms a cradle (21) for receiving an electric cable. 6. mechanism (100) of electrical equipment according to claim 3, wherein there is provided a cover (30) closing said base (10) and comprising each tongue (22) flexible return. 7. mechanism (100) of electrical equipment according to one of claims 3 to 6, wherein each tongue (22) flexible return and said plate (40) form a single piece. 8. Mechanism (100) of electrical equipment according to one of the preceding claims, wherein said wafer (40) is metallic. 9. Mechanism (100) of electrical equipment according to the preceding claim, wherein said plate (40) is a one-piece piece made by cutting, drilling and folding a metal plate. 10. mechanism (100) of electrical equipment according to one of claims 1 to 7, wherein said wafer (40) is plastic. 11. Mechanism (100) of electrical equipment according to one of the preceding claims, wherein there is provided locking means (47, 52) of said plate (40) in its output position against said support of electrical equipment (60). 12. Mechanism (100) of electrical equipment according to one of the preceding claims, wherein said plate (40) has two orifices (47) threaded adapted to receive screws (52) for fixing a flange (51) d a cable clamp (50). 13. Mechanism (100) of electrical equipment according to the preceding claim, wherein said flange (51) is permanently connected by a link (54) to an insulating portion of the mechanism (100) of equipment. 14. mechanism (100) of electrical equipment according to the preceding claim, wherein said link (54) is a rod (54) connected at one of its ends (55) to said flange (51), adapted to slide to through an opening (17) passing through said insulating portion of the apparatus mechanism (100), and having at its other end a bulge (57) of width greater than the diameter of said opening (17). 15. mechanism (100) of electrical equipment according to one of claims 13 and 14, wherein said link is a flexible link from forming with the flange. 16. Mechanism (100) of electrical equipment according to one of the preceding claims, wherein said plate (40) comprises at least a first inclined ramp (442) adapted to slide on a portion of the support (60) of electrical equipment upon insertion of the apparatus mechanism (100) into an opening (66) thereof to retract said wafer (40) from its exit position to its retracted position. 17. Mechanism (100) of electrical equipment according to one of the preceding claims, wherein said plate (40) comprises at least one second ramp (443) inclined adapted to slide on another part of the support (60) of electrical apparatus during removal of the apparatus mechanism (100) from the opening (66) thereof to retract said wafer (40) from its output position to its retracted position. 35 18. Mechanism (100) of electrical equipment according to one of claims 16 and 17, wherein the attachment portion of said wafer (40) comprises at least one of its two ends an individual element (44). having a double ramp (442, 443) inclined. 19. Mechanism (100) of electrical equipment according to the preceding claim, wherein each individual element (44) has a beveled rear edge (442) forming said first inclined ramp (442) and a beveled front edge (443) forming said second ramp (443) inclined. 20. Mechanism (100) of electrical equipment according to one of the preceding claims, wherein said plate (40) has a falling wall (48) located opposite the fastening portion (43) and arranged opposite at least one opening (15) through said side wall of the base (10). 21. Mechanism (100) of electrical equipment according to one of the preceding claims, wherein there is provided stop means (431, 34) limiting the translational movement of said wafer (40). 22. Mechanism (100) of electrical equipment according to the preceding claim, wherein said stop means comprise a rear stop (34) adapted to cooperate with said falling wall (48) to limit the recoil movement of said plate (40). inside the base (10). 23. Mechanism (100) of electrical equipment according to one of the two preceding claims, wherein said abutment means comprise a front stop (431) adapted to cooperate with said attachment portion (43) to limit the output movement the wafer (40) outside the base (10). 24. Mechanism (100) of electrical equipment according to one of the preceding claims, wherein said attachment portion (43) of said wafer (40) has notches (42) formed in a longitudinal edge (45), which define fastening tabs (43) whose front faces form bearing faces of said hooking portion (43) against the support (60) of electrical equipment. 25. Mechanism (100) of electrical equipment according to one of 0 • 0 preceding claims, which constitutes a terminal block for connecting a power supply cable of an electrical appliance. 26. Mechanism (100) of electrical equipment according to one of the preceding claims, belonging to an electrical assembly comprising another mechanism of electrical switchgear apparatus.