JPS6019452Y2 - Blind lid device in distribution box - Google Patents

Description

[Detailed description of the invention] This invention is designed to prevent foreign matter from entering into the window hole from which the handle of the circuit breaker protrudes in the distribution box that surrounds the circuit breaker. This invention relates to a blind lid device that has a blind lid that is integrally molded to close the lid.

Conventionally, the blind lid device for this type of distribution box is as shown in FIG. By engaging with the hole edge of hole A, unnecessary window holes A for backup circuits etc. were closed off, but the blind cover H had to be manufactured as a separate item from the distribution box, making it a component. Management was not favorable.

In view of the above points, the present invention has a handle formed on the upper wall that covers the circuit breaker, which closes the protruding window hole, and is also formed integrally with the earthen wall at the end of the handle, which is connected to the edge of the hole. By providing a blind lid device having a crushable branch support and a blind lid having a size that fits into the window hole after the crushing and separation, it is not necessary to manufacture the blind lid as a single item, and the blind lid is not required to be manufactured as a single item. The purpose of this is to eliminate the need to manage the lid as a single component and to be able to close the window hole not only before the support part is crushed but also after the support part is crushed.

Below are drawings 1 to 4 showing the present invention as an embodiment.
Referring to the figure, reference numeral 1 denotes a distribution box that surrounds a circuit breaker 2, and has a window hole 5 in an upper cover 3 from which a handle 4 of the circuit breaker 2 projects.

Furthermore, the upper edges of the pair of window holes 5 are tapered narrowly inward.

Reference numeral 6 denotes a blind lid, which has a collapsible support portion 7 connected to the hole edge and integrally formed with the upper wall 3 at its pair of ends, and is sized to fit into the window hole 5 after being crushed and separated. It has a tapered shape.

In addition, in order to improve the holding strength of the blind cover 6 when fitting the blind cover 6 which has already been crushed from the upper wall 3 into the window hole 5,
It is also possible to add an adhesive or form a hook portion as in the conventional example shown in FIG.

In addition, drawings 5 and 6 listed as other different embodiments
As shown in the figure, the upper surface edge of the window hole 5 is tapered inwardly at the center S, and the blind cover 6 is integrally formed with the upper wall 3 at all ends so as to be connected to the edge of the hole. It has a crushable support part 7 and has a size that fits into the window hole 5 after crushing and separation.

Particularly, when the blind cover 6 is fitted into the window hole 5, the folded edge of the support portion 7 of the blind cover 6 is caught in the tapered shape of the window hole 5, and is particularly secured against inward pressure.

Furthermore, as shown in FIGS. 7 and 8 of the drawings, which are shown as other different embodiments, there is a window hole 5 that does not have a tapered shape, and a collapsible window hole 5 that is connected to the hole edge and integrally formed with the upper wall 3 at all ends. When fitting the blind cover 6 into the window hole 5,
The locking may be performed using elasticity.

In particular, the window hole 5 and the blind cover 6 are not limited as long as they can fit together.

Further, the support part 7 is not limited as long as it is crushable and is located at the edge of the window hole 5 and the end of the blind cover 6, and the upper wall 3 may be a single piece even if it is integrally molded with the distribution box 1. It may be molded as a part of the distribution box 1.

Next, to explain how to use it, when attaching the circuit breaker 2 to the distribution box 1, by pressing the blind cover 6, the support part 7 is crushed and only the window hole 5 is left, and the bundle 4 of the circuit breaker 2 is Further, when the window hole 5 for a spare circuit or the like is unnecessary, the blind cover 6 is held by the support part 7.

When the installed circuit breaker 2 becomes unnecessary, the blind cover 6 is fitted into the window hole 5 to close the window hole 5.

Furthermore, when it becomes necessary again, the blind cover 6 can be removed from the window hole 5 and used.

As described above, the present invention is to block the protruding window hole by the bundle formed on the upper wall covering the circuit breaker, and at the same time, the bundle formed on the upper wall covering the circuit breaker closes the protruding window hole, and at the end of the bundle is formed integrally with the earthen wall connected to the edge of the hole. By providing a blind lid device for a distribution box having a blind lid having a support portion that can be supported and having a size that fits into the window hole after crushing and separation, the need to manufacture the blind lid as a single item is eliminated. There is no need to manage the blind cover as a single component, and the blind cover can be used as it is to close the window hole, not only before the support part is crushed, but also after the support part is crushed.

[Brief explanation of drawings]

Figures 1 to 4 show an embodiment of the blind lid device in the distribution box of the present invention, and Figure 1 is a perspective view of the main part showing the state of use, and Figure 2 is a diagram of the blind lid device. 3 is a BB sectional view of the same blind lid device, FIG. 4 is an AA sectional view showing the closed state after the support part is crushed, FIGS. 5 and 6, and FIG. 7 and 8 are sectional views of main parts showing the closed states before and after crushing of the support part of other different embodiments of the present invention, and FIG. 9 is a sectional view of main parts of a conventional example. 1...Distribution box, 2...Circuit breaker,
3...Top wall, 4...Bundle, 5...
... Window hole, 6 ... Blind cover, 7 ... Support part.

Claims (1)

[Scope of utility model registration request] In a distribution box that surrounds a circuit breaker and has a handle of the circuit breaker protruding from a window hole in an earthen wall, a window hole formed in an upper wall covering the circuit breaker from which the handle projects; It closes the window hole and has a crushable support part connected to the edge of the hole and integrally formed with the earthen wall at the end thereof, and has a size that fits into the window hole after the crushing and separation. A blind lid device in a distribution box consisting of a blind lid.