JPH0284798A - Fixture for electric appliance - Google Patents

Abstract

PURPOSE:To simplify structure and obtain the stable state of mounting, and to acquire a low-cost fixture by coupling a movable piece engaged with a mounting rail to two supporting arms implanted to a base and forming the movable piece in a rocking-free manner on the supporting arms. CONSTITUTION:A click 6 is installed onto one sidewall 4b of both sidewalls 4a, 4b of a recessed section 4 in the rear of a base 3 made of a synthetic resin closing the rear-side opening section of an insulating case 2 and a movable piece 17 with a pull 20 on the outside of the base 3 onto the other sidewall 4a, said recessed section 4 is inserted into a mounting rail 1, the click 6 is engaged with one edge section 1a of the mounting rail 1 and the movable piece 17 with the other edge section 1b respectively, and the insulating case 2 is set up. In such a fixture, the movable piece 17 is disposed between an expanding slot 14, which is connected to two supporting arms 13a, 13b implanted to the base 3, rocked freely on the supporting arms 13a, 13b and shaped by notching the base 3, and a stopper 2a being interlinked with the pull side edge of the movable piece 17 and regulating the deflection of the movable piece 17 is mounted to said insulating case 2.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a mounting device for mounting electrical appliances such as sockets and T-magnetic contactors mainly used in plug-in type relays and timers to a rail.

[Conventional technology]

As a conventional mounting device of this type, the one shown in FIGS. 1B and 2, for example, is known. In the figure, the rail 1 is formed by bending both ends of a pan-shaped cross section outward, and has an edge W151a, 1.
It is formed into an approximately U-shape with a b. Reference numeral 2 denotes an insulating case for an electric appliance or a socket having an opening on the back side, and this insulating case 2 has a base 3 made of sweet acid resin that closes the opening. A recess 4 for inserting the mounting rail 1 is provided on the back surface of the base 3, and a hook f@5 is formed on one side wall 4a of the recess 4 by two fixing claws 6.

There are two engagement grooves 5 in which one edge 1a of the rail l is engaged, and for this purpose, the side surfaces of the grooves of the fixing claws 6 are formed as inclined guide surfaces 6a. On the other side wall 4b of the recess 4, a slider 7 supported by the base 3 is always urged by a spring 8 in the direction of the recess 4, that is, the mounting direction is pressed against the other edge 1bf of the rail l. It is attached so that it protrudes from the surface. The slider 7 has a tapered tip and is mounted by engaging the engagement groove 5 with the edge 1a of the rail 1, and when the base 3 is pressed against the rail 1, the slider 7 is pushed against the splash 8. It is provided with a guide surface 9 for easy sliding movement and a locking surface 10 that comes into contact with the edge 1bf of the rail 1 for mounting. One end of the spring 8 is inserted into a hole provided in the slider 7, and the other end is in contact with the edge frame 3a of the base 3. The slider 7 is provided with a handle 11, and the handle 11 is provided with an operation hole 11a that can be pulled using a tool such as a screwdriver. The slider 7 also has a protrusion 12 that engages with a stopper 3b provided on the back surface of the base to restrict movement in the recess 4 directions.
is provided.

To attach the insulating case 2 to the rail 1, first hold the case 2 and slide the slope 6a of the protrusion 6 of the recess 4 of the base 3 onto the edge of the rail l into the engagement groove 5. Engage the edges 1a. Next, if the opposite side of case 2 is strongly pressed against rail 1, the installation will be done on the edge 1 of rail l.
When the guide surface 9 of the slider 7 contacts and slides on b, the slider 7 is pushed against the spring 8, and when the tapered tip of the slider 7 crosses the edge lb of the rail 1, the slider 7 is moved by the action of the spring 8. When mounted, the edge 1b of the rail 1 and the locking surface 10 of the slider 7 are locked, and the insulating case 2 is fixed to the rail l. Conversely, in order to remove an electrical appliance from the rail 1, the electric appliance can be easily removed from the rail 1 by pulling the handle 11 of the slider 7 outward against the spring 8.

[Problem to be solved by the invention]

However, in mounting this configuration, the slider 7 is separate from the base 3 and requires the spring 8, so the number of parts is large and the slider 7 is expensive, or it is difficult to install it to the base 3 including the spring 8. It has the disadvantage that it is troublesome and takes a lot of time to assemble.

An object of the present invention is to eliminate the drawbacks of the above-mentioned conventional devices, to provide a mounting device for electrical appliances that is simple in structure, provides a stable fcW state, and is inexpensive.

[Means to solve the problem]

In order to achieve the above object, the present invention has a movable recess having a fixed claw on one side wall and a handle on the outside of the base on the other side wall of a recess on the back side of a synthetic resin base that closes the opening on the back side of an insulating case. A mounting device for mounting an insulating case by inserting the recess into the rail and locking the fixed claw on one edge of the rail and the movable piece on the other edge. , the movable piece is connected to two support arms implanted in the base, and is swingable about the support arms as a fulcrum, and is disposed between grooves formed by cutting out the base, on the pull side of the movable piece. The invention is characterized in that the insulating case is provided with a stopper that engages with the edge and restricts the deflection of the movable piece.

[Effect]

For installation, the fixed claw that locks the rail and the movable piece are integrally formed on the base, which is separated from the insulating case, reducing the number of parts and requiring fewer assembly steps. Rail mounting becomes possible by integrating the two.

〔Example〕

Next, embodiments of the present invention will be described based on the drawings. Third
7 to 7 show a simple embodiment of the present invention, FIG. 3 is a longitudinal cross-sectional view, FIG. 4 is a front view, FIG. 5 is a vertical cross-sectional view showing the installation process to the rail, and FIG. is an exploded perspective view, and FIG. 7 is a perspective view showing an assembled state. In the figure, parts that are the same as those of the conventional device shown in FIG. 1 are designated by the same reference numerals to avoid duplication of explanation. In this embodiment, the movable piece, which is the main part of the mounting device, is made of synthetic resin. It is integrally molded into the base. In detail, the case 2 and the base 3 are divided as shown in FIG.
b is pushed into the protrusion 3C of the base 3 to be integrated. In the recess 4 of the base 3, one side M! 14a, an engagement groove 5 similar to that of the conventional device shown in FIG. one edge 1a of
can be engaged. On the other side wall 4b of the recess 4, an L-shaped movable piece 17 which can be attached and engaged with the other green glb of the rail 1 is formed.

The movable piece 17 protrudes toward the front side of the pacer 3 and extends between the vertical parts 12a and 12 between the two support arms 13a and 13b arranged in parallel.
The tip of b is supported and disposed between grooves 14 formed by cutting out the paste 3. And the movable piece 17 is fixed claw 6
The mounting has a locking claw 18 that engages with the other edge 1b of the rail 1, and an operation hole 19 on the opposite side of the locking claw 18 into which the tip of a bar-shaped tool such as a screwdriver can be inserted. Pull handle I
The locking claw 18 is equipped with an inclined guide surface 21 that allows the pace 3 to retract against the flexibility of the movable piece 17 itself when it is pressed against the rail 1, and this inclined guide surface 21 is attached. crosses the other edge 1b of the rail 1 and this edge 1b
A locking surface n that engages with is provided and is tapered.

The inner side of the handle engages with a stopper 2a provided on the side edge of the handle of the case 2, so that when the movable piece 17 is attached, the amount of protrusion toward the rail 1 is regulated, and the stopper 2a and the movable piece 17 are When the movable piece 17 moves to the upper surface side due to contact with the upper side, that is, when the case 2 is attached to the rail 3, the movable piece 17 is moved when the locking claw 18 and the other edge 1b of the mounting rail 1 come into contact with each other. prevents it from bending upward. Furthermore, movable piece 1
A cut @ 17a is provided in the center of the vertical part of the movable piece 17, but this is to set the spring force of the movable piece 17 to a predetermined strength, and it will not work if the predetermined spring force is obtained. Also good.

As shown in FIG. 6, a protrusion 2d having a stepped portion 2c is formed at a position corresponding to the pull of the movable piece 17 of the case 2, and a convex portion of the pull is formed on the stepped portion 2c of the protrusion 2d. 20
a is engaged, thereby suppressing the downward deflection of the movable piece 17. When integrating the case 2 and pace 3, in order to insert the pull of the movable piece 17 between the protrusions 2d, twist and flex the movable piece 17 to insert the pull I between the protrusions 2d. It is done by passing.

Next, install the case 2 integrated with the pace 3 on the rail 1.
In the same way as the conventional device shown in FIG. 5 is attached to rail 1. Next, when attaching the inclined guide surface 21 of the movable piece 17 to the other edge 1b of the rail 1 and pressing the case 2, the movable piece 17 resists the return force provided by itself and moves to the position shown in FIG. As shown by the chain line, the movable piece 17 regresses, the edge 1b and the locking surface n engage with each other, and the movable piece 17 returns to its original state, thereby completing the installation. In addition, to remove the movable piece 1, hook a rod-shaped tool such as a screwdriver into the operation hole 19.
Removal is completed by pulling the case 2 while bending the case 7 outward.

〔Effect of the invention〕

According to this invention, the mounting is performed by integrally molding a movable piece made of flexible synthetic resin that engages with the rail, and furthermore, the mounting is performed in order to improve stability in the state and workability during installation. By providing a stopper between the movable piece and the case to suppress the amount of protrusion and deflection, the number of parts and cost of electrical appliances can be reduced without reducing the stability during installation and the workability of attaching and detaching. You can get the mounting device.

[Brief explanation of drawings]

Figures 1 and 2 are diagrams showing an example of a conventional mounting device for electrical appliances. Figure 1 is a vertical sectional view of the main part, Figure 2 is a rear view, and Figures 3 to 7 are views of this device. 3 is a longitudinal sectional view of the main part thereof, FIG. 4 is a front view thereof, and FIG. 5 is a longitudinal sectional view of the main part showing the installation process, FIG. 6 is an exploded perspective view thereof, and FIG. 7 is a perspective view showing its assembled state. 1... Installation is on the rail, la, lb... edge, 2...
・Case, 2a... Strike, Pa, 3... Pace, 4.
... Recess, 4a, 4b... Side wall, 5... Engagement groove, 6
...Fixed claws, 13a, 13b...Support arms, 14...
・Split groove, 17... Movable piece, 18... Locking claw, ■...
・Holder. Figure 1 Figure 5

Claims (1)

[Claims] 1) A recess on the back side of the synthetic resin base that closes the opening on the back side of the insulating case. A fixed claw is provided on one side wall, and a movable piece having a handle on the outside of the base is provided on the side wall, and the recess is attached to the mounting rail. In the mounting device for attaching the insulating case by inserting the insulating case into the mounting rail and locking the fixed claw on one edge of the mounting rail and the movable piece on the other edge, the movable piece is implanted in the base. It is connected to two support arms and is swingable about the support arms as a fulcrum, and is disposed between grooves formed by cutting out the base, and engages with the handle side edge of the movable piece to prevent deflection of the movable piece. A mounting device for an electrical appliance, characterized in that a regulating stopper is provided on the insulating case.