JP2501496B2 - Mounting device to rail - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rail mounting device provided on a device side for mounting a device such as a breaker on a rail provided in a distribution board or the like.

[0002]

2. Description of the Related Art Conventionally, as a mounting device for mounting a device to a rail provided with a pair of mounting pieces such as DIN standard rails on both sides in the width direction, a rail mounting device provided on a surface facing the rail. The rail is fitted into the recess for mounting the rail, and one of the mounting pieces of the rail is held between the inner bottom surface of the rail by the locking protrusion provided on one side surface of the recess for mounting the rail. There is provided a structure in which one end of a slider that projects forward and backward from the other side surface of the rail holds the other mounting piece of the rail between the rail and the inner bottom surface of the rail. The slider is fitted in a guide groove formed in the device to be movable in the width direction of the rail, and one end of the slider is biased by a return spring in such a direction as to project into the rail mounting recess.

The return spring 3 comprises a coil spring, and as shown in FIG. 7, it is inserted into a spring mounting opening window 23 provided in a slider 2 which is movably fitted in a guide groove 13 of a device 1, and the spring is A spring receiving projection 1 provided on the inner bottom surface of the guide groove 13 so as to be inserted into the mounting opening window 23.
5 and the inner peripheral surface of the spring mounting opening window 23 are compressed. That is, as shown in FIGS. 8 and 9, a spring bearing 16 which is a recess is formed in the spring bearing projection 15, and a spring is inserted into a surface of the inner peripheral surface of the spring mounting opening window 23 facing the spring bearing 16. Since the protrusion 24 is provided so as to project, one end portion of the return spring 3 is inserted into the spring receiver 16 and the spring insertion protrusion 24 is inserted into the other end portion of the return spring 3, whereby the return spring 3 springs. Opening window for mounting 23
It is held in.

[0004]

By the way, in the above-mentioned conventional structure, the spring insertion projection 24 is formed only for the purpose of preventing the displacement of the one end of the return spring 3, and therefore, the projecting dimensions are different from each other. It was a small one. Therefore, as shown in FIG. 7, when the return spring 3 is compressed, a force acts in a direction orthogonal to both end directions of the return spring 3, which causes a problem that the return spring 3 easily comes off. Had a problem that the return spring 3 buckled.

An object of the present invention is to solve the above problems, and to provide a rail having a structure in which a return spring formed of a coil spring does not come off from a spring mounting opening window or buckle. It is intended to provide a mounting device.

[0006]

According to the present invention, in order to achieve the above object, a pair of mounting pieces is provided on a device so that the device can be detachably coupled to rails provided on both sides in the width direction. In the rail mounting device, a rail mounting recess is formed on the outer peripheral surface of the device, in which both the surface facing the rail and both sides in the longitudinal direction of the rail are open and a part of the rail is fitted. In the direction of the rail mounting recess, one inner side surface of the rail mounting recess is provided with a locking projection that holds the tip of one of the rail mounting pieces between the rail mounting recess and the inner bottom surface of the rail mounting recess. A guide groove in which a slider that is movable in the rail width direction is fitted is formed on the same outer peripheral surface as the recess, and one end of the slider advances and retreats from the other inner surface of the rail mounting recess in the rail width direction. Rail when protruding The tip of the other mounting piece of the rail is held between the inner bottom surface of the mounting recess and the center of the slider is composed of a coil spring and is biased in such a direction that the slider projects into the mounting recess of the rail. A return spring is attached to the spring mounting opening window, and a spring receiving projection that is inserted into the spring mounting opening window and has a spring receiver on one end side of the return spring is provided on the inner bottom surface of the guide groove. A spring insertion protrusion that is inserted into the other end of the return spring and holds the return spring is provided on a surface of the inner peripheral surface of the spring mounting opening window facing the spring receiver provided on the spring reception protrusion. The receiving protrusion is formed with a groove into which the spring insertion protrusion is slidably inserted when the slider is moved.

[0007]

According to the above construction, the spring receiving projection is formed with the groove portion into which the spring inserting projection is slidably inserted when the slider is moved. The spring inserting projection is passed through the groove portion when the slider is moved. Therefore, even if the protrusion size of the spring insertion protrusion is increased, the spring insertion protrusion does not collide with the spring receiving protrusion due to the movement of the slider. In other words, the protrusion size of the spring insertion protrusion can be set large without hindering the movement of the slider, and the deformation of the return spring due to the action of the force orthogonal to the direction connecting the both ends of the return spring composed of the coil spring is prevented. Can be stopped by. As a result, the return spring is prevented from coming off the buckle or buckling.

[0008]

In this embodiment, a breaker is assumed as a device, but the purpose is not to limit the type of device, and the configuration of the present invention can be applied to other devices. Further, although the DIN standard rail is assumed as the rail, other rails may be used.

As shown in FIG. 1, a rail mounting recess 11 is formed on the bottom surface of the device 1. As shown in FIG. 6, the rail 4 has a substantially U-shaped cross section, and is formed in a shape in which the mounting pieces 41 project outward from the tips of the leg pieces. The rail mounting recess 11 is formed in the outer surface of the device 1 in a shape that is open to the surface facing the rail 4 and both side surfaces in the longitudinal direction of the rail 4. A pair of locking protrusions 12 is provided on one side surface of the rail mounting recess 11 in the width direction of the rail 4, and the tip end portion of one mounting piece 41 of the rail 4 is attached to the rail mounting recess 11. It is designed to be sandwiched between the inner bottom surface and the locking projection 11.

A rail mounting recess 11 is provided on the bottom surface of the device 1.
A guide groove 13 running in a direction orthogonal to the center line of the is formed so that one end thereof is continuous with the rail mounting recess 11. The slider 2 that is movable in the width direction of the rail 4 is fitted into the guide groove 13. The slider 2 is arranged such that one end of the slider 2 advances and retreats from the side surface of the rail mounting recess 11.
At a position where one end of the slider 2 projects into the rail mounting recess 11, the tip of the mounting piece 41 of the rail 4 is located between the one end of the slider 2 and the inner bottom surface of the rail mounting recess 11. It is pinched.

On both sides of the slider 2, projections 21 for sliding are provided in the lower half of the slider 2 in the thickness direction in FIG. The sliding protrusion 21 is provided at an end portion of the slider 2 near the rail mounting recess 11 in the moving direction, and the sliding protrusion 21 in the moving direction of the slider 2 is provided.
A step portion 22 that rises upward in FIG. 1 is formed at an end portion on the side opposite to the rail mounting recess 11. Guide groove 1
At both ends of the rail 3 and near the rail mounting recess 11, a holding projection 14 for slidably holding the sliding projection 21 with the inner bottom surface of the guide groove 13 is provided. .

A spring mounting opening window 23 is formed in the center of the slider 2, and a spring receiving projection 15 protruding from the inner bottom surface of the guide groove 13 is inserted into the spring mounting opening window 23. As shown in FIG. 2, the spring bearing projection 15 is provided with a spring bearing 16 which is a recess on the surface on the rail mounting recess 11 side, and a surface of the spring mounting opening window 23 facing the spring bearing 16 and The return spring 3 composed of a coil spring is inserted and attached between the spring receiver 16 and the spring receiver 16. The return spring 3 biases the slider 2 so that one end thereof projects into the rail mounting recess 11. By the way, a spring insertion protrusion 24 to be inserted into one end of the return spring 3 is provided on the inner peripheral surface of the spring mounting opening window 23 and the surface facing the spring receiver 16. The spring insertion projection 24 and the spring receiving projection 1 are located at a position where the surface of the inner surface of the spring mounting opening window 23 opposite to the rail mounting recess 11 contacts the spring receiving projection 15.
The protrusion size is set so that a slight gap is formed between the protrusion and the protrusion 5. On the other hand, the spring receiving projection 15 is formed with a groove portion 17 into which the spring insertion projection 24 is slidably inserted when the slider 2 moves. Such a groove 17
By forming the above, it becomes possible to move to the position where the surface of the inner surface of the slider 2 near the rail mounting recess 11 contacts the spring receiving projection 15. Further, since the protrusion size of the spring insertion protrusion 24 can be set large while increasing the moving distance of the slider 2, even if a force in a direction orthogonal to the direction connecting both ends acts on the return spring 3, The spring insertion protrusion 24 can prevent the position of the return spring 3 from being displaced, and as a result, the return spring 3 can be prevented from coming off the slider 2 and the return spring 3 from buckling. On the both sides of the end of the slider 2 opposite to the rail mounting recess 11, protrusions 26 are provided so as to project, and one end of the slider 2 projects into the rail mounting recess 11 at the guide groove 13. By preventing the steady rest projections 26 from fitting in the steady rest recesses 19 (see FIG. 5), the rattling of the slider 2 when the device 1 is mounted on the rail 4 is suppressed. Therefore, the device 1 can be attached to the rail 4 without rattling.

The slider 2 and the return spring 3 are assembled to the device 1 by the procedure shown in FIGS. That is, as shown in FIG. 3, the slider 2 is fitted in the guide groove 13 in such a manner that the spring insertion protrusion 24 is fitted in the groove portion 17. Next, as shown in FIG. 4, the slider 2 is moved so that the sliding projection 21 overlaps the holding projection 14, and a gap is formed between the tip of the spring insertion projection 24 and the spring receiving projection 15. To do. In this state, as shown in FIG. 5, by inserting the spring insertion protrusion 24 into one end of the return spring 3 and inserting the other end of the return spring 3 into the spring receiver 16, the return spring 3 is moved to the spring of the slider 2. It may be attached to the opening window 23 for attachment.

According to the above construction, one of the mounting pieces 41 of the rail 4 is attached to the inner bottom surface of the rail mounting recess 11 and the locking projection 12.
And the other mounting piece 41 of the rail 4 in a state of being inserted between
The device 1 can be attached to the rail 4 by sandwiching between the inner bottom surface of the rail mounting recess 11 and one end of the slider 2. At the position where one end of the slider 2 projects into the rail mounting recess 11,
The size is set so that the other end of the slider 2 projects from the side surface of the device 1, and the projecting portion has a removal hole 25 into which the tip of the driver or the like can be inserted. Therefore, when the device 1 is removed from the rail 4, the tip of the driver or the like is inserted into the removal hole 25 so that the slider 2 can be pulled.
Can be removed from the rail mounting recess 11. The device 1 is provided with four mounting holes 18 for directly mounting the device 1 on the mounting surface by inserting the mounting screws. One of the mounting holes 18 is one of the spring receiving protrusions 15.
Is formed so as to pass through.

[0015]

As described above, according to the present invention, the spring receiving projection is formed with the groove portion into which the spring inserting projection is slidably inserted. When the slider is moved, the spring inserting projection is passed through the groove portion. Therefore, even if the protrusion size of the spring insertion protrusion is increased, the spring insertion protrusion does not collide with the spring receiving protrusion. In other words, the protrusion size of the spring insertion protrusion can be set large without hindering the movement of the slider, and the deformation of the return spring due to the action of the force orthogonal to the direction connecting the both ends of the return spring composed of the coil spring is prevented. It has the advantage that it can be blocked by As a result, the return spring is prevented from coming off the buckle or buckling.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an essential part showing an embodiment.

FIG. 2 is an exploded plan view of a main part of an assembling process showing an embodiment.

FIG. 3 is a plan view of a main part of an assembly process showing an embodiment.

FIG. 4 is a plan view of a main part of an assembling process showing an embodiment.

FIG. 5 is a plan view of an essential part after assembly showing an embodiment.

FIG. 6 is a side view showing an example.

FIG. 7 is a plan view of an essential part showing a conventional example.

FIG. 8 is a plan view of an essential part, excluding a return spring, showing a conventional example.

FIG. 9 is a plan view of an essential part, excluding a return spring showing a conventional example.

[Explanation of symbols]

 1 Equipment 2 Slider 3 Return Spring 4 Rail 11 Recess for Rail Mounting 12 Locking Protrusion 13 Guide Groove 15 Spring Receiving Protrusion 16 Spring Receptor 17 Groove 23 Spring Opening Window 24 Spring Inserting Protrusion 41 Mounting Piece

Claims (1)

(57) [Claims] 1. A rail mounting device provided on a device so as to detachably couple the device to rails provided with a pair of mounting pieces on both sides in the width direction, and a surface facing the rail and a longitudinal direction of the rail. The rail mounting recess is formed on the outer peripheral surface of the device, and the rail mounting recess is open on both sides in the direction of the rail, and the rail mounting recess is mounted on one inner surface of the rail mounting recess in the rail width direction. A locking projection that holds the tip of one of the rail's mounting pieces is projected between the inner bottom surface of the mounting recess and the same outer peripheral surface as the rail mounting recess in the equipment, and is movable in the rail width direction. A guide groove into which the slider is fitted is formed, and the slider is railed between the inner bottom surface of the rail mounting recess when one end advances and retracts from the other inner side surface of the rail mounting recess in the rail width direction. Of the other mounting piece A spring mounting opening window is formed in the center of the slider for mounting a return spring, which is composed of a coil spring and biases the slider in the recess for mounting the rail. Spring receiving protrusion that is inserted into the opening window for spring and has a spring bearing on one end side of the return spring is projectingly provided on the inner bottom surface of the guide groove, and the spring bearing is provided on the spring receiving protrusion on the inner peripheral surface of the opening window for spring attachment. A spring insertion protrusion that is inserted into the other end of the return spring to hold the return spring is provided on the surface facing the and, and the spring receiving protrusion has a groove portion through which the spring insertion protrusion is slidably inserted when the slider moves. A device for mounting on a rail, characterized by being formed.