JPH0724342B2 - Electrical parts storage box - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an electrical component storage box for storing electrical components and the like, and in particular, an improvement in the structure for attaching and detaching the cover of the electrical component storage box mounted on the vertical wall portion. The present invention can be used for an electric component storage box for an elevator or the like that is attached to a vertical wall portion of an elevator or the like.

[Prior Art] FIG. 6 is a vertical sectional view showing a conventional electric component storage box for elevators, and FIG. 7 is a sectional view showing an AA cross section of the electric component storage box for elevators of FIG.

In the figure, 1 is a wall on which an elevator electrical component storage box is installed, 2 is a case embedded in the wall 1 with an opening 2a on the wall surface, 3 is a cover for covering the opening 2a of the case 2, 4 Is a screw for attaching and detaching the cover 3, 5 is a mounting material for screwing the screw 4 fixed to the inner surface portion 2b of the case 2, 6
Is an electric component attached to the back surface 3a of the cover 3 and the like.

The conventional elevator electrical component storage box is configured as described above and is mounted on a vertical wall surface near the elevator landing. Various electric components such as a landing button, a landing indicator, and a hall lantern are stored in the elevator electric component storage box. And
In order to allow maintenance and inspection of these various electric components 6, the cover 3 of the electric component storage box for elevator is usually constructed so as to be removable.

In this conventional elevator electrical component storage box, the cover 3
Since the cover 4 is attached with the screw 4, the cover 3 can be attached and detached by attaching and detaching the screw 4.
However, the screw 4 must be attached / detached using a special tool such as a screwdriver, and the attaching / detaching operation of the cover 3 is troublesome.

Therefore, an electric component storage box for elevators in which the cover 3 can be easily attached and detached has come to be used. FIG. 8 is a vertical cross-sectional view showing another conventional electric component storage box for elevators. In the figure, 1 to 4 and 5 are components that are the same as or correspond to the components of the conventional example.

In the figure, 7 is an insertion plate made of an angle member or the like fixed to the back surface 3a of the cover 3 by a screw 4, 8 is a receiving plate that holds the insertion plate 7 on the inner surface 2b of the case 2, and 9 is a receiving plate. 8 is a screw that fixes the end portion of 8 to the inner surface portion 2b of the case 2.

In this elevator electrical component storage box, the receiving plate 8 is made of an elastic material. And using this elastic force,
The insertion plate 7 is fixed with a pressing force applied.
Therefore, by inserting / removing the insertion plate 7 between the inner surface portion 2b of the case 2 and the receiving plate 8, the cover 3 can be easily attached / detached. Also, in this type of elevator electrical component storage box, the screws 4 etc. do not appear on the surface of the cover 3,
The appearance can be improved.

This kind of elevator electrical parts storage box is
No. 61-101566 and Japanese Utility Model Publication No. 59-78362.

[Problems to be Solved by the Invention] In the conventional electric component storage box for elevators as described above,
The cover 3 was detachably attached to the opening 2a of the case 2. In recent years, a large number of covers 3 having a large plate thickness or covers 3 having a large outer shape have been adopted as the cover 3 due to diversification of designs.

The increase in the plate thickness of the cover 3 and the enlargement of the outer shape result in an increase in the weight of the cover 3 itself.

For this reason, in the conventional structure for attaching and detaching the cover 3, the safety during the attachment / detachment work is impaired, or a reliable and stable fixed state cannot be maintained.

That is, in the screw attaching / detaching structure shown in FIG.
When the screw 4 is removed, the heavy cover 3 is immediately ready to drop, which makes attachment and detachment work extremely dangerous. In addition, in the cover 3 having the insertion-type attachment / detachment structure shown in FIG. 8, the insertion plate 7 is easily removed due to the weight of the cover 3, and the insertion plate 7 is fixed in a state where it is likely to spontaneously drop off. Therefore, an electric component storage box having a detachable structure that can cope with an increase in the weight of the cover 3 has been desired.

On the other hand, as a storage box for electric parts in consideration of these matters, the technology disclosed in Japanese Utility Model Laid-Open No. 63-95281 can be mentioned. In this technique, one end of a stay composed of three connecting arms slides in an elongated hole of a box body, and at the same time, the other end is rotatably attached to an operation panel via a rotation support shaft. Therefore, although it is possible to cope with the increase in the weight of the cover, the structure is complicated and the electrical component storage box cannot be manufactured at a low cost. Further, if it is left as it is, the stable mounting state cannot be maintained.

In the technique disclosed in Japanese Utility Model Laid-Open No. 59-59143, sliding support rods are provided on at least both sides of the shelf box body so that they can be vertically slid and fixed at a predetermined position. The shelf plate is fixed to the upper end. Therefore, although a solid sliding support rod is arranged in the relationship between the rack body and the shelf plate, the structure is complicated and the electrical component storage box cannot be manufactured at a low price as in the former publication. .

In the technology disclosed in Japanese Utility Model Laid-Open No. 61-182082, the drawer mechanism is separated into the housing fixed side and the unit fixed side, and the sliding parts of the drawer mechanism separately fixed to the housing and the unit are slid together. In addition to being able to be pulled out simply by moving it, it can be detached by pulling it out before contacting the stopper when pulling out. However, none of the concrete structures disclose means capable of maintaining a stable attachment state.

Therefore, the present invention makes it possible to safely attach and detach the cover even when the cover itself increases in thickness due to an increase in the plate thickness of the cover or an increase in the outer shape thereof, and the reliability of the cover is improved. An object of the present invention is to provide an inexpensive electrical component storage box that can maintain a stable fixed state and has a simple structure.

[Means for Solving the Problem] An electric component storage box according to the present invention includes a support member that is embedded in a wall and is disposed in a depth direction from an opening on an inner surface of a case capable of storing electric components. An end of the cover is detachably disposed on a back surface of the cover that removably covers the opening of the case. The end of the cover is located at a corresponding portion of the support member of the case and maintains a slidably coupled state with the support member. A V-shaped engaging member, a protrusion near the cover-side end of the supporting member, and a protrusion protruding toward the supporting member near the opposite end of the cover of the engaging member, It comprises a stopper means capable of limiting the sliding range of the support member and the engagement member and releasing the connected state thereof, and a screw for attaching the case and the cover covering the opening thereof by screwing.

[Operation] In the present invention, a pair of engagement members or support members that are slidably connected to each other are provided at corresponding portions of the inner surface of the case and the back surface of the cover that is detachably covered from the outside. Since the stopper means limits the sliding range of the engaging member and the supporting member and releases the coupled state, the attaching / detaching operation of the case and the cover can be performed via the engaging member and the supporting member. . Therefore, even if the screw is removed, the cover does not drop immediately, and moreover, the cover does not drop off by its own weight. In addition, in the mounted state, the case and the cover that covers the opening are mounted by screwing using a screw, so that the cover can maintain a reliable and stable fixed state.

[Embodiment] FIG. 1 is a longitudinal sectional view showing an electric component storage box according to an embodiment of the present invention, and FIG. 2 is a sectional view of the electric component storage box BB of FIG.
Sectional drawing which shows a cross section, FIG. 3 is sectional drawing which shows CC cross section of the electrical component storage box of FIG. In the figure, 1 to 6
Is a component that is the same as or corresponds to the component of the conventional example.

In the figure, reference numeral 10 denotes an engaging member having a substantially U-shaped cross section, which is vertically provided on the back surface portion 3 a of the cover 3. Reference numeral 11 denotes a support member disposed in the inner surface portion 2b of the case 2 in the depth direction from the opening 2a. The support member 11 is fitted inside the engaging member 10 having a substantially U-shaped cross section and has a slidable outer dimension. ing. Reference numeral 12 is a screw for fixing the engaging member 10 to the back surface portion 3a of the cover 3. 13 is a vertical gap when the engaging member 10 and the support member 11 are in a coupled state, 14 is also a horizontal gap, and 15 is disposed at the end of the engaging member 10 and projects toward the gap 14 side. Pins, 16 are support members 11
This is a projection that is disposed near the opening 2a of the case 2 and projects toward the gap 14. With the pin 15 and the protrusion 16, the engaging member
A stopper means capable of limiting the sliding range of the support member 11 and the support member 11 and releasing the connected state is constituted.

The means for fixing the cover 3 of the elevator electrical component storage box to the case 2 is a screw, and is a mounting means using a screw corresponding to FIG. 6 of the conventional example.

The electrical component storage box of this embodiment is configured as described above, and the attachment / detachment operation of the cover 3 is performed by the engaging member 10 and the supporting member 11.
Can be done through.

Next, the attaching / detaching operation of the cover 3 will be described with reference to the drawings.

FIG. 4 is a sectional view showing a state where the cover of the electric component storage box according to the embodiment of the present invention is separated from the wall surface, and FIG. 5 is a cover of the electric component storage box separated from the wall surface of FIG. It is sectional drawing which shows the state just before removing.

First, the case of removing the cover 3 will be described. The screw 4 is unscrewed with a screwdriver or the like, and the cover 3 is separated from the case 2. At this time, the engagement member 10 slides in contact with the support member 11 and is pulled out together with the cover 3. And the engaging member
When the pin 15 of 10 and the projection 16 of the support member 11 contact each other, the sliding range of the engagement member 10 and the support member 11 is limited (see FIG. 4).

Therefore, even if the screw 4 is removed, the cover 3 remains in the engagement member 10.
Since it is held by the engagement of the support member 11 with the support member 11, the cover 3 does not drop immediately unlike the conventional case.

Further, the cover 3 can be completely separated from the case 2 by releasing the coupling state between the engagement member 10 and the support member 11. That is, while the cover 3 is separated from the case 2 (see FIG. 4), the cover 3 is lifted upward to disengage the pin 15 of the engaging member 10 and the protrusion 16 of the supporting member 11 from each other. , It is possible to release the combined state (5th
See figure).

It should be noted that when the cover 3 is attached, the operation can be carried out in the opposite manner to the case of releasing the above-mentioned coupled state, and thus the cover 3 can be attached very easily.

As described above, in this embodiment, in addition to the screw 4 which is the attaching means of the cover 3, the holding means of the cover 3 formed of the pair of the engaging member 10 and the supporting member 11 is provided, and the attaching and detaching of the cover 3 is performed by the engaging member. This can be done via 10 and the support member 11. Moreover, even when the cover 3 is pulled out to the opening 2a side of the case 2, the engagement member 10 and the support member 11 maintain the combined state.

Therefore, this embodiment is a cover 3 having a plug-in type detachable structure.
Even when it is used for the insertion plate 7 due to its own weight of the cover 3.
Will never come out. In addition, even if the cover 3 comes off, the cover 3 does not drop naturally.

Therefore, in this electrical component storage box, the safe fixing state of the cover 3 can be maintained irrespective of the increase in the plate thickness of the cover 3 and the increase in the weight of the cover 3 itself due to the enlargement of the outer shape.
Moreover, the work of attaching and detaching the cover 3 can be performed safely.

Here, another embodiment of the electric component storage box of the present invention will be described.

In the above embodiment, the engaging member 10 is provided on the back surface 3a of the cover 3,
Further, although the supporting members 11 are arranged on the inner surface portion 2b of the case 2, respectively, when implementing the present invention, they are arranged in reverse, and the engaging member 10 is arranged on the opening 2a of the case 2, The support member 11 may be arranged on the back surface portion 3a of the cover 3.

Further, in the above embodiment, the engaging member 10 and the support member 11,
Although it is arranged on the side surface side of the electric component storage box, it may be arranged on the upper and lower surface sides.

Furthermore, in the above-described embodiment, the pin 15 is provided on the engaging member 10 as a stopper means for the engaging member 10 and the supporting member 11, and
Although the projections 16 are provided on the support member 11, the pins 15 may be formed integrally with the engagement member 10. Alternatively, it may be a stopper means of another form capable of limiting the sliding range of the engaging member 10 and the supporting member 11 and releasing the connected state thereof.

The cover 3 itself may have a round shape, or
It may be rectangular and can be widely used for electric component storage boxes having covers 3 of various shapes, and particularly for elevator electric component storage boxes that are often installed on a vertical wall surface.

[Effects of the Invention] As described below, the electrical component storage box of the present invention is slidably coupled to the corresponding portion of the inner surface of the case and the back surface of the cover that detachably covers the opening of the case. Since a pair of the engaging member and the supporting member that are in a state is arranged, and the restriction of the sliding range of the engaging member and the supporting member and the release of the combined state are set by the stopper means, the case and the cover are Since the attaching / detaching operation can be performed via the engaging member and the supporting member, the cover does not drop immediately even if the screw is removed, and further, the cover does not naturally drop due to its own weight. Even if the thickness of the cover increases or the outer size increases, and the weight of the cover itself increases, the simple structure enables inexpensive manufacturing, and the cover attachment / detachment work can be performed safely. K Since the cover and the cover that covers the opening are attached by screwing using a screw, the cover can maintain a reliable and stable fixed state.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an electric component storage box according to an embodiment of the present invention, and FIG. 2 is a sectional view of the electric component storage box BB of FIG.
FIG. 3 is a cross-sectional view showing a cross section, FIG. 3 is a cross-sectional view showing a CC cross section of the electric component storage box of FIG. 1, and FIG. FIG. 5 is a sectional view showing a separated state, FIG. 5 is a sectional view showing a state immediately before removing the cover of the electrical component storage box separated from the wall surface in FIG. 4,
FIG. 6 is a longitudinal sectional view showing a conventional electric component storage box for elevators, FIG. 7 is a sectional view showing an AA cross section of the electric component storage box for elevators of FIG. 6, and FIG. It is a longitudinal cross-sectional view showing an electric component storage box for an elevator. In the figure, 1 ... wall, 2 ... case, 2a ... opening, 2b ... inner surface, 3 ... cover, 3a ... rear, 6 ... electrical part, 10
...... Engagement member, 11 …… Support member. In the drawings, the same reference numerals and symbols indicate the same or corresponding parts.

Claims (1)

[Claims] 1. A case that is embedded in a wall and is capable of accommodating electrical components, a cover that detachably covers an opening of the case, and a support that is disposed on the inner surface of the case in the depth direction from the opening. A member and an end portion of which is disposed on the back surface of the cover, which is located at a corresponding portion of the support member of the case and has a substantially U-shaped cross section for maintaining a slidable coupling state with the support member. A coupling member, a protrusion near the end of the support member on the cover side, and a protrusion protruding toward the support member near the end of the engagement member on the opposite side of the cover, and engages with the support member. An electrical component storage box comprising: stopper means capable of limiting a sliding range with a member and releasing the coupled state thereof; and a screw for mounting the case and a cover covering the opening thereof by screwing. .