EA006989B1 - Locking device of a device for fixing two electrical apparatuses and apparatus comprising same - Google Patents

Abstract

The present invention relates to a locking device of the fixing device of two electrical apparatuses designed to be fitted on the same mounting support, said apparatuses being housed in a case of substantially parallelepipedic shape and each comprising a rear panel for fixing to the support, two connection panels, a front panel comprising control means of the apparatuses and two side panels whereby the apparatuses are adjoined to one another, one of the apparatuses, called the first apparatus, comprising a part forming a wing, said part comprising a first part extending from the connection panel of said first apparatus facing this connection panel and a second part able to be moved to face the connection panel of the other of the apparatuses, called the second apparatus, situated on the same side as the previous apparatus. This device is characterized in that the fixing device (19) comprises a rider (20) movable inside said wing (15) and the case of the second apparatus D between an inactive position and a fixing position of the two apparatuses D,B, reversible securing means to secure said rider (20) reversibly in the above-mentioned fixing position, a latch movable between an inactive position and a locking position of said fixing device (19) in the fixing position, and securing means called irreversible securing means (27,30,33) to secure said latch irreversibly in the above-mentioned locking position.

Description

BACKGROUND OF THE INVENTION

The present invention relates to a locking mechanism of a device for fixing two electrical devices intended to be mounted on one mounting support, these devices are enclosed in a parallelepiped-shaped housing, and each of them includes a rear panel for mounting to a support, two connecting panels, a front panel containing instrument control and two side panels with which the devices are attached to each other, one of the devices, called the first device, contains a part forming a wing, indicated the part includes a first part protruding from the connecting panel of the first device, facing the connecting panel, and a second part capable of moving to dock with the connecting panel of another of the devices, called the second device, located on the same side as the first instrument.

State of the art

Some solutions are known for locking the differential unit onto an interrupter connected to it. One solution is to use a screw that is self-destructing at the end of the tightening, making it impossible to separate the differential unit from the breaker. With this solution, the assembly of a differential unit with a chopper requires a final adjustment of the fasteners. If the product is disassembled, the product is damaged and its reuse is dangerous.

A solution is also known consisting in the use of a screw coating for the loaded terminals of a non-reversible fastening breaker, which finally prevents the disassembly of the electrical connections connecting the differential unit to the breaker. In this solution, blocking is achieved indirectly by finally blocking other assembly functions, for example, access to the screws of the breaker terminals, which leads to the risk of forgetting to tighten the wires of the differential unit and prevents safety re-tensioning during commissioning or when the installation is being repaired.

Also known is the solution consisting in the implementation of the traditional sealing with a wire, which should be cut in order to dismantle the differential unit from the breaker connected to it. In this case, a component is used that is not included in the connected device, the sealing wire. Also known is the solution described in Patent PP 2779269, consisting in the use of a push-button mechanism that blocks the sliding bevel, located in the case of one of the devices. This mechanism includes a button that activates the lever, and the lever operates in conjunction with a sliding bevel. This solution uses several parts, which complicates the system.

The purpose of the invention

The present invention overcomes these drawbacks and provides a locking mechanism for the mounting device that makes the assembly non-separable, but leaves a noticeable mark in the event of deliberate disassembly, is used without any tools, does not depend on other functions of the device, is integrated in the connected device, at the same time contains a minimum number of parts and can only be activated after a complete check of the assembly or installation.

Therefore, the aim of the present invention is to provide a locking mechanism of the aforementioned type, such a mechanism is characterized in that the fastening device comprises a racer movable inside the indicated wing and the body of the second device between the deactivated position and the fastening position of two devices, a lock movable between the deactivated position and the closed position of the above fastening devices in the fastening position, and fasteners called non-reversible, for attaching the specified lock is irreversible in the aforementioned closing position.

In accordance with a specific feature, the mechanism comprises reversible fastening means for fastening said reiter reversibly in said fastening position.

In accordance with a specific embodiment, the rider is mounted to move between said positions.

In accordance with a particular feature, the reater comprises a lever and a gripping part, said lever being able to pass sequentially through a first hole formed in a second part of said wing and a second hole formed in a housing of the second device.

In accordance with another feature, said reversible fastening means comprise a collar formed on the lever of the reiter and designed to work in conjunction with a groove, followed by a bevel equipped in the wall defining said first hole for fastening said reiter in a reversible position.

In accordance with yet another feature, the rider has a substantially T-shaped cross section, and the grip portion is formed by a flattened portion capable of being brought into contact with the outer surface of said wing in the attachment position.

In accordance with another feature, the constipation includes a plate designed to slide on the outer surface of the wing body between the first position in which the mounting device

- 1 006989 the arm is not closed, and the second position, in which the plate works in conjunction with the captured part of the reiter to close the specified mounting device in the fastening position.

In accordance with another feature, the non-reversible fastening means of the lock in the closed position comprise a knife placed in a third hole formed in the wing body, said knife being connected at one of its ends to said plate and working at its opposite end in connection with a bevel formed on the wall limiting the specified third hole for non-reversible fastening of the specified constipation in the specified in the closing position.

In accordance with another feature of the specified knife is bent essentially in a U-shape.

In accordance with another feature, the constipation includes two branches extending from the plate perpendicular to the plane of the plate and containing at their ends elements for clamping on part of the wing body in order to carry out reverse clamping of the constipation in the deactivated position, clamping is performed non-reversibly in the activated position .

According to another embodiment, the reiter lever includes two recesses forming three grooves, designed to work in conjunction with an elastic tongue, firmly attached to the wall, forming a third hole formed in the specified wing for mounting the reiter, respectively, for three grooves, in the open position, the reverse mounting position, and the non-reversible closing position, said tongue and third groove form non-reversible closing means.

In accordance with another feature, starting from the end of the lever located on the side on which the devices are located, the first groove corresponds to the open position, the second to the fastening position and the third to the non-reversible closing position.

According to another embodiment of the invention, the leiter lever has a deadbolt protruding substantially perpendicular to the axis of the lever and designed to work in conjunction with a bevel fixed to the wall, belonging to a third hole formed in the above wing, so that after moving the leiter and deadbolt through the first hole formed in the wing, the rider can be rotated between the first position corresponding to the loose state of the devices and the second position in which, after passing sowing through the bevel, the deadbolt is located on the other side of the bevel, by the position in which it carries out non-reversible closing of the lock.

In accordance with yet another feature, the Reiter lever comprises a protrusion designed to work in conjunction with a part of the wall in which the aforementioned first hole is located, so as to respectively form a vault point in an unsecured position and a vault point in a fixed reverse position of the Reiter mount.

Mostly, the devices are two electrical safety devices.

Advantageously, the first device is a differential unit, and the second device is a breaker.

It is also an object of the invention to provide an apparatus comprising a device having the aforementioned features both individually and in combination.

Brief Description of the Drawings

Other advantages and features of the invention will become more apparent from the following detailed description, which refers to the accompanying drawings, given for purposes of illustration only, in which FIG. 1-8 show a first embodiment of the invention;

FIG. 1 is a perspective view showing two devices attached to each other by a locking mechanism of a fastening device in accordance with the invention, FIG. 2 is a view identical to the previous one, but containing a cut-out view showing the locking mechanism of the fastening device in accordance with the invention, FIG. 3, 4 and 4a are partial cross-sectional views of the preceding figures, the fixing device and the locking mechanism are in the deactivated position, FIG. 4 is a cross section along line 1U-1U of FIG. 3, FIG. 4a is a cross section along line 1Ua-1Ua of FIG. 3, FIG. 5 and 6 are views identical to the previous ones, in which the fastening device is in the activated position and the locking mechanism is in the deactivated position, FIG. 7, 8 and 8a are views identical to the previous ones, the fixing device and the locking mechanism are in the activated position, the locking mechanism being in the closed position, FIG. 8 is a cross section along the line U111-U111 of FIG. 7 and FIG. 8a is a cross-section along the line U111a-U111a of FIG. 7, FIG. 9-11 are partial cross-sectional views showing another embodiment of a locking mechanism of a fastening device in accordance with the invention, FIG. 12-22 are images of another embodiment of the invention, FIG. 12 is a perspective view showing a mounting device in a fixed, unclosed position,

- 2 006989 Fig. 13 is a partial view showing the mounting device in the fixed, unclosed position, FIG. 14 is a partial view showing the mounting device in a non-reversible closed position; FIG. 15 is a front view of two appliances attached to each other, and comprising a cutout showing a mounting device in a fixed and closed position, FIG. 16 is a perspective view showing two devices fastened by a fastening device according to the invention in a non-reversible closed position, FIG. 17 and 18 are partial cross-sectional views, respectively, along lines AA and CC of FIG. 19, showing the mechanism in accordance with the invention, in an unsecured position, FIG. 19 is a partial view showing a mechanism in accordance with the invention in the same position as a rear view, FIG. 20 is a partial cross-sectional view taken along line AA of FIG. 22 showing the same mechanism in a fixed and closed position, FIG. 21 is a partial cross-sectional view taken along line CC of FIG. 22, showing the locking mechanism in a fixed and closed position, FIG. 22 is a partial view showing the mechanism in the same position, in a rear view.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

In FIG. 1 and 2, you can see the chopper Ό connected to the differential block B, two devices are designed for installation on a mounting rail (not shown). Two devices are enclosed in boxes in the shape of parallelepipeds. These enclosures comprise a rear panel 1 for fastening to a rail, a bottom connection panel 3, 4, and an upper connection panel 5, 6 containing connection terminals 18 of the devices, four side panels 7, 8, 9, 10, by means of two of which 8, 9 the two devices are connected in a fitted position on the rail, and the front panel 11, 12 containing the control knobs 13, 14. The differential unit B includes a control handle 14 of the opening lock, mechanically attached to the lock of the breaker Ό, which can also be activated by the handle 13 . On 'F ig. 1 and 2, it can be seen that the block B body comprises a wing 15 formed by a narrow portion 16 protruding on the connecting panel 4 of the differential unit B and a smaller narrow part 17 protruding on the connecting panel 3 of the chopper Ό. These parts forming the wing are intended for sheltering the conductors of differential unit B, these conductors are intended for electrical connection to the connecting terminals 18 of the chopper Ό.

These two devices B, ятся are attached to each other by means of a fastening device 19 in accordance with the invention. As can be seen from FIG. 1-8, this device 19 includes a rider 20 having a substantially T-shaped cross section and comprising a lever 21 and a gripping portion 22 protruding substantially perpendicular to said lever. This lever 21 is designed to fit into two holes 23, 24 formed respectively in the wider part 17 forming the wing of the differential unit B and in the breaker housing Ό to prevent relative movement between the two devices B, Ό in connection with the mounting clip 25, connecting the connecting panels 5, 6.

As can be seen from FIG. 3-8a, the lever 21 comprises a shoulder 55, designed to work in conjunction with a groove 56 and a protrusion 57 provided in the hole 23 of the wing 15, to form an arch point for the rider 20 when it moves inside the holes 23, 24. The shoulder 55, the groove 56 and the protrusion 57 form a reversible fastening means of the mounting device 19 in the fastening position. Reuters 20 further comprises a clamp 59, working in conjunction with the groove of the housing 15, to achieve means for holding the reiter in the open position.

The device 19 is closed in its mounting position by means of a locking mechanism 26 or a lock. This mechanism 26 comprises a plate 27 slidably mounted on the outer surface 32 of the wide part 17 of the wing 15, and a part 28 protruding from one of the ends of the plate 27 in the direction of the rider 20 and in a slightly shifted plane with respect to the plane of the aforementioned plate 27. This part 28 is designed to work in conjunction with a groove 29 equipped on the gripping part 22 of the reiter 20.

The locking mechanism 26 also contains fastening means for irreversible fastening of the locking mechanism 26 (Fig. 1, 2). These means include a knife 30, essentially folded in a V-shape, attached to said plate 27, said knife 30 being designed to fit into a third hole 31 formed on said wing 15, from which a plate 27 protrudes resting on the wing body 15. The assembly is thus carried out with sliding relative to the specified wing 15, the knife 30 slides inside the hole 31 and the plate 27 slides on the outer surface 32 of the specified wing 15. Inside the said hole 31 is a bevel 33, a formed body m, and in conjunction with it the end 34 of said knife must be operated in such a manner as will be described below.

The operation of the fastening device and the locking mechanism in accordance with the invention will be described later with reference to FIG. 1-8.

- 3 006989

In FIG. 3, 4 and 4a, two devices B, Ό are shifted together to effect mechanical fastening. The fastening device 19 and the locking mechanism 26 are in the open state.

In FIG. 5 and 6, the rider 20 is completely placed in the openings 23, 24 of the wing 15 and the breaker housing Ό. At the end of the movement (Fig. 8a), the shoulder 55 extends to the other side of the protrusion 57. This protrusion 57, which forms the arch point, then holds the rider 20 inside the holes 23, 24, the gripping part 22 of the reiter 20 rests on the outer surface 32 of the wing 15. In this position, you can see that the end of the lever 21 of the reiter 20 is located above the position of the bottom 35 of the body of the chopper Ό and thus supports two devices B, Ό connected.

In this position, the locking mechanism 26 is in the deactivated position. The end 34 of the knife 30 presses on the part forming the bevel 33 of the wing 15. In FIG. 6 you can see that the plate 27 of the locking device also contains two branches 36, 37, respectively, protruding from the two ends of the plate 27, these branches 36, 37 contain at their ends clamping elements 38, 39, designed to work respectively in connection with two walls 40 , 41 located inside the hole 31 formed in the wing 15 to hold the specified device inside the hole 31.

In FIG. 7, 8 and 8a, the locking mechanism 26 is moved to the activated position, in which part 28 of the plate 27 is gripped in a groove 29 formed for this purpose on the gripping part 22 of the reiter 20, and the end 34 of the knife 30 is held by the wall 58 formed at the end of the bevel 33. Moreover, the branches 36, 37 are respectively clamped between the walls 40, 62 and 41, 63 of the housing, making it impossible to expand in this position. In this position, the operator can no longer remove the constipation without damaging the latter, and thus leaves a visible trace of this attempt. Constipation thus occupies a non-reversible closed position.

You can see that the constipation, in accordance with the invention, is a single part, which is clamped by simple manual pressure into the breaker housing. It moves until it locks the head of the mounting reader. This lock is locked in a non-reversible manner using an anti-return system.

In FIG. 9, 10, 11, another embodiment of the invention is shown in which the fastening device 19 is formed by a T-shaped cross-section rider 20 and comprises on its arm 21 two cutouts 41, 42 forming three grooves 43, 44, 45 designed to operate in connected to an elastic tongue 46 firmly attached to the wing body 15. In these figures, it can be seen that two of these grooves 43, 44 are shaped so that the rider 20 can easily move from one groove 43 to another groove 44. The third groove 45 of of these grooves 43, 44, 45 on the other hand is a wall 65 extending perpendicular to the axis of the lever 21 of the reiter 20, so that when the tongue 46 is in the groove 45, the rider 20 can no longer move inside the holes 23, 24. In this embodiment, the locking mechanism 26 is formed by the tongue 46 working in conjunction with a third groove 45 located near T-shaped crossbeam forming a rider 20.

The operation of these fastening devices and the locking mechanism in accordance with this embodiment will be described hereinafter with reference to FIG. 9, 10, 11.

In FIG. 9, the fixing device 19 and the locking mechanism 26 are deactivated, two devices B, Ό are simply moved together to effect mechanical fastening. The tongue 46 is in the first groove 43, i.e. groove 43 is located closest to breaker Ό.

To fasten the devices, the operator presses on the raider 20. With this movement, the tongue 46 moves from the first groove 43 to the second groove 44, the position in which the fastening device 19 is active (Fig. 10). In this position, the rider 20 is supported in this position in a reversible manner by the tongue 46 engaged in the second groove 44. In FIG. 11, the reiter 20 is fully engaged in the holes 23, 24 and the tongue 46 has moved into the third groove 45, thereby locking the reiter 20. In this position, and due to the shape of the groove 45, the rider 20 can no longer be removed from the holes 23, 24 without damage tongue 46 and thus without leaving marks.

According to the embodiment of FIG. 12-22, the rider 20 is formed by two cylindrical parts 47, 48, one of which, 47, of a larger diameter, forms the gripping part, and the other, 48, of a smaller diameter, is placed in the openings 23, 24 of the wing bodies 15 of the differential unit B and the chopper Ό.

Near the free end 49 of the smaller-sized lever 48, the rider 20 comprises a deadbolt 50 protruding perpendicularly to the axis of this lever 48. This deadbolt 50 is designed to work in conjunction with a bevel 51 attached to the rear surface 52 of the wing body 15.

Also in FIG. 17 and 20, it can be seen that the lever 48 also has a shoulder 55 designed to work in conjunction with two projections 53, 44 of the hole 23 for forming two arch points, respectively, in the open position of the mounting device 19 (FIG. 17) and the mounting position (FIG. twenty).

In fact, in FIGS. 17 and 20, it can be seen that the shoulder on the lever forms the arch point in an unsecured and unclosed position and in a fixed and closed position.

The operation of the fastening device and the locking mechanism will be described hereinafter with reference to FIG. 12-22.

- 4 006989

Firstly, the rider 20 having a deadbolt 50 is placed in two holes 23, 24 made in the wing and chopper body, the size and shape of the holes are formed in such a way as to allow this input (Fig. 12, 13, 17, 18, nineteen).

Then, as soon as the rider has entered the fastening position, the operator brings the rider 20 into rotation by a quarter turn around its axis. When the bolt 50 rotates, it hooks onto the bevel 51 formed in the wall of the hole formed in the wing 15 and extends to the other side of this bevel 51, in the position in which the fastening device is closed. It is impossible to unlock the device, or this requires damage to the bolt 50, thus leaving a visible mark from this attempt (Figs. 14, 15, 16, 20, 21, 22). The latter function is standardizing and has the task of preventing the deactivation of the differential module.

It should be noted that for all these operations, blocking can be immediate or can take place on site after testing the installation. In the event of an intentional disassembly, the part of the lock that carries out the lock breaks and makes up the necessary signs of disassembly.

This system reduces the risk of errors in choosing the electrical characteristics of differential units and circuit breakers, as it allows the system to be locked at any time, after connecting the components of the power system, and even after testing the installation.

The lock must be of a certain color and must be visible from the front surface when it does not occupy the closed position, which will make it possible to check simply visually that all products equipped in this system installed on the panel are locked.

The installation of the reader and the lock is carried out by movements allowing the operation to be carried out without any tools, and in easily accessible areas, allowing the closing operation to be carried out as soon as the product has been installed in the panel.

The closing operation is carried out in one movement movement (or movement, followed by rotation). The design of the support part is such that the system containing the racer and the lock can be advantageously replaced by one part, which simultaneously performs both the fastening function and the closing function, for varieties of grounded breakers pre-assembled at the factory.

This system, in accordance with the invention, makes the assembly reversible as long as the customer so desires (which makes it possible to test the installation), this assembly, after moving from the deactivated position to the activated position, occupies a non-reversible position, thus completely blocking the mounting racer in the activated position .

The invention is naturally not limited to the described and illustrated embodiments, which are given here by way of example only.

The invention is thus applicable to any distribution, protective, and monitoring electrical devices of a modular type.

On the contrary, the invention seeks to cover all the technical equivalents of the described means, as well as their combinations, if the latter are carried out within the framework of the invention.

Claims (17)

CLAIM 1. The locking mechanism of the mounting device of two electrical appliances designed for installation on one mounting support, these devices are enclosed in a parallelepiped-shaped housing, and each of them includes a rear panel for attaching to the support, two connecting panels, a front panel containing means instrument control and two side panels with which the devices are attached to each other, one of the devices, called the first device, contains a part forming a wing, this part includes the first part, protruding from the connecting panel of the specified first device, facing the connecting panel, and the second part, made with the possibility of movement to face the connecting panel of another of the devices, called the second device, located on the same side as the first device, characterized the fact that the mounting device (19) comprises a racer (20) movable inside the indicated wing and the body of the second device Ό between the deactivated position and the mounting position of the two devices Ό, B, lock (26), movable m between the deactivated position and the closing position of said fastening device (19) in the fastening position, and non-reversible fastening means (27, 30, 33, 45, 46, 50, 51) for fastening said lock (26) are not reversible in said closing position. 2. The mechanism according to claim 1, characterized in that it contains reversible fastening means (43, 44, 46, 53, 54, 55, 56, 57) for attaching the specified reiter (20) reversibly in the aforementioned fastening position. 3. The mechanism according to claim 1 or 2, characterized in that the rider (20) is mounted with the ability to move between the two specified positions. 4. The mechanism according to any one of claims 1 to 3, characterized in that the reuter (20) comprises a lever (21) and a gripping part (22), said lever (21) being made with the possibility of sequentially passing - 5 006989 to blow through the first hole (23) formed in the second part (17) of the mentioned wing (15) and the second hole (24) formed in the body of the second device Ό. 5. The mechanism according to any one of claims 2 to 4, characterized in that said reversible fastening means (55, 56, 57) comprise a collar (55) formed on the lever (21) of the reiter (20) and designed to work together with the groove (56) followed by a protrusion (57) made in the wall forming the aforementioned first hole (23) for reversibly attaching said reiter (20) in the fastening position. 6. The mechanism according to claim 4 or 5, characterized in that the rider (20) has a substantially T-shaped cross section and the gripping part (22) is formed by a flattened part configured to bring into contact with the outer surface (32) of the said wing (15) in the fastening position. 7. The mechanism according to any one of the preceding paragraphs, characterized in that the lock (26) contains a plate (27, 28) designed to slide on the outer surface (32) of the wing body (15) between the first position in which the mounting device (19) not closed, and the second position in which the plate (27, 28) works in conjunction with the gripping part (22) of the reiter (20) to close the specified fastening device (19) in the fastening position. 8. The mechanism according to claim 7, characterized in that the non-reversible fastening means of the lock (26) in the closed position contain a knife (30) placed in a third hole (31) formed in the wing body (15), said knife (30) is connected one of its ends with the specified plate (27) and acts with its opposite end in connection with the bevel (33) formed on the wall bounding the specified third hole (31), for non-reversible fastening of the specified lock (26) in the specified closing position. 9. The mechanism of claim 8, wherein said knife (30) is substantially bent into a U-shape. 10. The mechanism according to any one of claims 7 to 9, characterized in that the lock (26) includes two branches (36, 37) extending from the plate (27) perpendicular to the plane of the plate (27) and containing elements at its ends ( 38, 39) for clamping on a part of the wing body (15) in order to carry out reverse clamping of the lock (26) in the deactivated position and non-reversible clamping in the active position. 11. The mechanism according to any one of claims 4 to 6, characterized in that the lever (21) of the reiter (20) includes two recesses (41, 42), forming three grooves (43, 44, 45), designed to work in connection with an elastic tongue (46), firmly attached to the wall forming the third hole (31), formed in the specified wing (15) for mounting the rider (20), respectively, for three grooves (43, 44, 45), and in the open position, the reversible mounting position, and the non-reversible closing position, said tongue (46) and the third groove (45) form non-reversible closing means. 12. The mechanism according to claim 11, characterized in that starting from the end of the lever (21) located on the side on which the devices B, расположены are located, the first groove (43) corresponds to the open position, the second (44) to the fastening position and the third (45) - non-reversible closing position. 13. The mechanism according to any one of claims 4 to 6, characterized in that the lever (21) of the reiter (20) contains a bolt (50) protruding essentially perpendicular to the axis of the lever (21) and designed to work in conjunction with a bevel (51) mounted on the wall belonging to the third hole (31) located in the specified wing (15), so that after moving the rider (20) and the deadbolt (50) through the first hole (23) formed in the wing (15) and the breaker body Ό , the rider (20) can be brought into rotation between the first position corresponding to the unsecured state of the devices B, Ό, and the second position, in which, after passing through the bevel (51), the bolt (50) is located on the other side of the bevel (51) in the position in which it performs non-reversible closure of the constipation (26). 14. The mechanism according to item 13, wherein the lever (21) of the reiter (20) comprises a shoulder (55) designed to work together with two protrusions (53, 54) of the wall belonging to the first hole (23), for the corresponding formation arch points in an unsecured position; and arch points in a reverse fixed position of the reiter (20). 15. The mechanism according to any one of the preceding paragraphs, characterized in that the devices are electrical protective devices. 16. The mechanism according to any one of the preceding paragraphs, characterized in that the first device is a differential unit B and the second device is a chopper Ό. 17. An electrical appliance comprising a locking mechanism in accordance with any of the preceding paragraphs.