JPH0334931Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a mounting device for electrical equipment, particularly a lightweight electrical equipment mounting device used in a switchboard, a control panel, etc.

[Prior art]

Conventionally, this type of mounting device is shown in Figures 1 and 2.
I got what is shown in the figure. In FIGS. 1 and 2, reference numeral 1 denotes an electrical equipment main body, and a leg base 1c is formed on both sides of the mounting surface, and an engaging claw for a rail-type mounting bracket 2 is provided on the inside of one of the leg bases 1c. 1d is provided. Further, on the mounting surface, the intermediate part of the leg base 1c on the side where the engaging claw is not provided is removed, and a recess 1e with a T-shaped cross section that is continuous with the removed part is provided with the engaging claw 1d.
It is formed toward the footrest on the side where the Reference numeral 3 denotes a movable piece with claws, including an engaging claw 3a that hooks on the mounting bracket 2, a hook portion 3b for removing the engaging claw from the mounting bracket, and recesses 1e-1 on both sides of the recess 1e having a T-shaped cross section. It has guide rails 3c on both sides that fit into the recess 1e, and the engagement pawl 3a is constantly urged in the direction to engage the mounting bracket 2 by a push spring 4 contracted in the recess 1g on the bottom of the recess 1e. ing.

Next, the operation will be explained.

When attaching the electrical equipment main body 1 to the mounting bracket 2, the inclined portion 3c of the engaging claw 3a touches the end face 2a of the mounting bracket 2, and if the electrical equipment main body 1 is further pressed, the movable piece 3 with claws will move as indicated by the arrow. Move in the a direction and engage the engaging claw 3.
When a passes through the end surface 2a of the mounting bracket 2, the movable claw-equipped piece 3 is restored by the pressing force of the push spring 4, and the engaging claw 3a becomes hooked on the end surface 2a, and the electrical equipment main body 1 is held. Ru.

Next, when removing the electrical equipment main body 1 from the mounting bracket 2, hook a flathead screwdriver or the like onto the catch portion 3b of the movable piece 3a, push the movable piece 3 with a claw against the spring 4, and press the arrow. By moving in the direction a shown and removing the engaging claw 3a from the end surface 2a of the mounting bracket 2, the electrical equipment main body 1 can be removed from the mounting bracket 2.

Since the conventional mounting bracket has the above-mentioned structure, if the electrical equipment main body 1 is long, a plurality of movable pieces 3 with claws as locking devices must be attached to the bottom of the electrical equipment main body 1. And a plurality of movable bodies 3 with claws
The pressing force required to attach the electric device main body 1 to which the electric device 1 is attached requires a considerably large force that is greater than the pressing force of the pressing springs 4 corresponding to the number of movable bodies 3 with claws. Further, when removing the electrical device main body 1, there is a drawback that the hook portions of the plurality of engaging claws 3a must be operated simultaneously.

[Summary of the idea]

This invention was made in order to eliminate the above-mentioned drawbacks of the conventional art, and the object is to provide a mounting device that allows a plurality of movable bodies with claws as locking devices to be easily operated.

[Example of idea]

Hereinafter, one embodiment of this invention will be explained as shown in FIGS. 1 and 2.
Figures 3 to 6, in which the same parts as in the figures are given the same reference numerals.
The diagram will be explained. Leg stands 1c, 1c are formed on both sides of the bottom of the electrical equipment main body 1, and on the inside of one of the leg stands 1c, an engagement claw 1d for the mounting bracket 2 is formed.
is provided.

Further, on the bottom surface of the electrical equipment main body 1, there is a recess 1e having a T-shaped cross section and a narrow recess 1f communicating with the recess by removing the intermediate part of the leg base 1c on the side where the engaging claw is not provided. It is formed. A hole 1a communicating with the narrow recess 1f is formed on the side surface of the electrical device body on the side of the leg stand 1c where the engaging claw 1d is provided, and a groove 1b is formed in the hole wall surface of this hole 1a in the direction of the hole. has been done. Further, a recess 1g for housing the biasing spring 4 is formed on the bottom surface of the T-shaped recess 1e.

The claw-equipped movable piece 3 has an engaging claw 3a for the mounting bracket 2 on the rear end side in the advancing and retreating direction, and rails 3c that fit into both side recesses 1e-1 of the T-shaped recess 1e on both sides.
A biasing spring 4 is provided in the center corresponding to the storage recess 1g.
Storage holes 3d are formed respectively. A lock rod 5 is integrally provided on the front end surface of the movable piece 3 with a claw via a bendable piece 5b, and a slot in the middle of the lock rod 5 engages with the groove 1b in the hole 1a. A neck portion 5a is formed.

The movable piece 3 with claws has rails 3c, 3 on both sides thereof.
Using c as a guide, pull T from the side of the electrical equipment main body 1.
Insert into the letter-shaped recess 1e. During this insertion, the lock rod 5 advances within the narrow recess 1f, and the tip end including the narrow neck 5a penetrates the hole 1a and projects to the outside.
By pushing out one end side (the rear end side of the movable piece with a claw) of the spring 4 compressed into the storage hole 3d into the storage recess 1g, the movable piece with a claw 3 is always moved by the spring 4 in the insertion direction. It will be energized.

The operation of attaching and detaching the mounting bracket 2 to the electrical equipment main body 1 to which the claw-equipped movable piece 3 is mounted will be explained. When removing the electrical equipment main body 1 from the mounting bracket 2, push the tip 5c of the locking rod 5 to release the movable piece 3 with a claw.
resists the spring 4 and moves from the state shown in FIG. 3 to the state shown in FIG. 4, and is disengaged from the mounting bracket 2.

In the pushed-in position, the locking rod 5 applies a force in a direction substantially perpendicular to the pushing direction, causing the narrow neck 5a to engage with the groove 1b in the hole 1a. Due to this engagement, the locking rod 5 does not restore its original state even if the pushing force is released, and the movable claw-equipped piece 3 is held in a state in which the engaging claw 3a is disengaged from the mounting bracket 2, so that the electrical equipment The main body 1 can be removed from the mounting bracket 2.

When installing, attach the mounting surface of the electrical equipment body 1 to the mounting bracket 2 in the unlocked state, that is, with the narrow neck 5b of the locking rod 5 and the groove 1b in the hole 1a fitted.
After that, the locking rod is restored and the narrow neck portion 5b is disengaged from the groove 1b. This results in
The claw-equipped movable piece 3 and the locking rod 5 are pushed in the opposite direction to the direction in which they were pushed in by the restoring force of the spring 4, and the engaging claw 3a engages with the mounting bracket 2 to complete the installation.

[Effect of idea]

As described above, according to the present invention, the lock rod that pushes the movable body with claws is locked in the moving position, so even if there is a plurality of lock bars, each lock bar can be moved to the moving position, that is, the claw By locking the engaging claw of the attached movable piece in a position where it does not engage with the mounting bracket 2, there is an effect that a large operating force is not required when attaching or detaching the electrical equipment main body from the mounting bracket.

[Brief explanation of the drawing]

Figures 1 and 2 are longitudinal sectional views of a part of a conventional mounting device, in which Figure 1 is a state diagram in which the engaging claw of the electrical equipment main body is engaged with the mounting bracket, and Figure 2 is Figures 3 and 4 are diagrams showing the state in which the engagement claw is disengaged.
The figures are longitudinal cross-sectional views of a part of the mounting device of this invention, in which Fig. 3 shows the state in which the engaging claw of the electrical equipment main body is engaged with the mounting bracket, and Fig. 4 shows the state in which the engaging claw is engaged with the mounting bracket. FIG. 5 is an exploded perspective view of the mounting device of this invention, and FIG. 6 is an enlarged perspective view of the main parts of the locking rod. 1...Electrical equipment body, 2...Mounting bracket, 3...
Movable piece with claw, 4... Spring, 5... Lock bar. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] The electric device has an electrical equipment main body that is attached to and removed from a mounting bracket, a first engagement claw formed on a mounting surface of the electrical equipment main body that engages with the mounting bracket, and a second engagement claw that engages with the mounting bracket. A movable piece with a claw provided on the mounting surface so as to be movable toward and away from the first engaging claw, and a lock rod bendably connected to the movable piece with a claw are formed in the electrical equipment main body so as to pass through the movable piece with a claw. a through hole formed in the through hole, a groove formed in the hole wall surface of the through hole in the hole direction; and a narrow neck part provided in the middle of the locking rod so as to hold the locking rod in the pushing position.