JPH0622911Y2 - Circuit breaker mounting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a circuit breaker mounting device, and
The present invention relates to a circuit breaker mounting device that can be mounted on a mounting panel in combination with a one-touch type metal fitting and a decorative frame.

[Conventional technology]

As a conventional device for mounting a circuit breaker of this type, there is a device shown in FIG. 5 previously proposed by the present applicant in Japanese Utility Model Application No. 63-33301. Here, 1 is a circuit breaker, 2 is its operation handle, and 3 is a notch groove cut along both sides of the case 1A of the circuit breaker 1 along its side surface. Further, 4 is a decorative frame, and 5 is a mounting bracket, and the decorative frame 4 and the case 1A of the circuit breaker 1 are engaged with each other via the mounting bracket 5 to attach the circuit breaker 1 to the mounting panel 6.
Can be fixed and held.

That is, the mounting member 5 is fitted into the mounting groove 5A of the case 1A, the mounting piece 5A which can be fitted into the cut groove 1A, the engaging piece 5B which engages with the locking projection 4A of the decorative frame 4, and the mounting hole 6A of the mounting panel 6, A holding piece 5C or the like for restraining the movement in the direction along the plane of the drawing by its elasticity is formed, and when the breaker 1 is attached, the operation handle 2 is exposed from the handle exposure hole 4B of the decorative frame 4. In addition, it can be combined with the decorative frame 4 via the mounting bracket 5 as shown in the figure, and can be kept engaged with each other.

[Problems to be solved by the device]

However, in the conventional circuit breaker mounting device as described above, since the circuit breaker 1 is mainly fitted in the mounting hole 6A by the elastic holding piece 5C of the mounting bracket 5, the number of In the case where both ends in the longitudinal direction thereof are supported by the mounting members 5 as in the case of the pole piece, the holding force is not stable with respect to the external force in the direction perpendicular to the plane of the drawing, and it tends to wobble, and there is a feeling of anxiety during operation.

The object of the present invention is to focus on the above-mentioned conventional problem, and in order to solve the problem, by firmly fixing the decorative frame and the circuit breaker case to each other, the decorative frame, the mounting bracket, and the circuit breaker are provided. It is an object of the present invention to provide a device for mounting a circuit breaker, which maintains a good connection state and provides a stable operation feeling.

[Means for Solving the Problems]

In order to achieve such an object, the present invention holds a decorative frame that holds only the operation handle fitted to the mounting panel in a state of protruding from the mounting panel and a case of the circuit breaker, and mounts it. In a device for mounting a circuit breaker, which comprises a mounting bracket capable of engaging a panel and a decorative frame with each other to fix the case and the decorative frame to a mounting panel, a projecting portion projecting from the case around an operation handle, and a decorative frame. And a fitting hole formed at a position corresponding to the projecting portion, and by fitting the projecting portion into the fitting hole, the decorative frame and the case are coupled to each other. Is.

[Action]

According to the present invention, the decorative frame and the case are fixed to each other by engaging the mounting panel via the mounting brackets, and the decorative frame and the case are firmly fixed to each other. Without it, you can remove the anxiety.

〔Example〕

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.

FIG. 1 shows an embodiment of the present invention. Here, 11 is a projecting portion that projects from the case upper surface 1B, and 12 is a fitting hole that is bored at a position corresponding to the projecting portion 11 of the decorative frame 4. In this example, however, four longitudinal streaky protrusions 1 are formed on the inner peripheral surface 12A of the fitting hole 12 as shown in FIGS. 2A and 2B.
3 are provided so that there is a press-fitting resistance when the protrusion 11 shown in FIGS. 3A and 3B is fitted by these streak-like projections 13 and a form of interference fit is obtained.

That is, when the inner diameter of the fitting hole 12 surrounded by the streak projections 13 is the outer diameter of the protruding portion 11, the diameter is set to be slightly larger than the diameter, for example, about 0.3 mm. When the case 1 and the decorative frame 4 are made of a resin-based material, both can be easily and suitably fitted. Therefore, at the time of assembly, with the two mounting brackets 5 mounted on the case 1A of the circuit breaker, these are not inserted into the mounting holes 6A (see FIG. 5) of the mounting panel 6, and the mounting panel 6 When the mounting of the decorative frame 4 is performed from above, the projection 11 of the case upper surface 1B is press-fitted into the fitting hole 12 of the decorative frame 4, so that the lower surface side of the decorative frame 4 is attached to the case. Stick it to the upper surface 1B,
The whole can be firmly bonded.

4A and 4B show another embodiment of the present invention.
In this example, the protruding portion 21 protruding around the operation handle 2 is formed in a square shape, and the corresponding fitting hole 22 on the side of the decorative frame 4 is also formed in a rectangular shape. Also, in this case as well, the outer width of the protruding portion 21 is set to be slightly larger than the inner width of the fitting projection 22 in the fitting hole 22, so that the fitting projection 22 projects into the fitting hole 22. Part 21
Can be pressed in so that there is no movement between them.

In addition, in the above-mentioned embodiment, the shape of the protrusion and the fitting hole is round or square, but the shape is not limited to these, and the inner surface of the fitting hole is not limited to these. The number of streak projections provided is not limited to four, and a plurality of streaks may be provided at positions where they do not come loose.

[Effect of device]

As described above, according to the present invention, the circuit breaker is mounted through the mounting bracket and the decorative frame in a state where the decorative frame and the case, the case and the mounting bracket, and the mounting bracket and the decorative frame are firmly coupled to each other. Since it is fixed to the mounting panel, there is no possibility that the circuit breaker will shake during operation and the stability will be impaired as in the conventional case.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention, FIGS. 2A and 2B are a top view of a decorative frame according to the present invention and a sectional view taken along the line AA, and FIGS. 3A and 3B. FIG. 4 is a top view and a side view of a circuit breaker according to the present invention, FIGS. 4A and 4B are a top view of a decorative frame and a circuit breaker as a second embodiment of the present invention, and FIG. It is sectional drawing which shows an example of a structure of the attachment device of a circuit breaker. 1 ... Circuit breaker, 1A ... Case, 1B ... Case upper surface, 2 ... Operation handle, 3 ... Incision groove, 4 ... Decorative frame, 4A ... Locking protrusion, 5 ... Mounting bracket, 6 ...... Mounting panel 11,21 ...... Projection part, 12,22 ...... Mating hole, 13,23 ...... Striation projection.

Claims (1)

[Scope of utility model registration request] 1. A decorative frame fitted to a mounting panel for keeping only an operation handle in a state of protruding from the mounting panel, and a case of a circuit breaker held so as to be sandwiched between the mounting panel and the decorative frame. A mounting device for a circuit breaker, comprising a mounting member capable of engaging with each other and fixing the case and the decorative frame to the mounting panel, wherein a projecting portion provided around the operation handle and projecting from the case is provided. A fitting hole formed at a position corresponding to the projecting portion of the decorative frame, and by fitting the projecting portion into the fitting hole, the decorative frame and the case are coupled to each other. A device for mounting a circuit breaker, characterized in that