JP3813382B2 - Electrical equipment storage box - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a junction structure of a box body and a ceiling member in a box for storing electrical equipment such as a distribution board, a distribution board, and a control board.
[0002]
[Prior art]
Conventionally, as shown in FIG. 6 to FIG. 9, an electric equipment storage box 61 includes a box body 63 having an opening 62 on at least a front surface, a ceiling member 64 that forms an upper surface portion of the box body 63, and A door body 65 that covers the opening 62 of the box body 63, and the door body 65 and the box body 63 are hinged by a hinge 66. The ceiling member 64 is formed by a flat plate 67 serving as an upper surface portion of the box body 63 and side plates 68, 68, 68, 68 extending from front, rear, left, and right side ends of the flat plate 67. The face plate 68 is bent at a substantially right angle, and the ridges formed by the adjacent side plates 68 and 68 are all welded 69 and joined. And the ceiling member 64 was fitted to the upper surface part of the box body 63, and the box body 63 and the side plate 68 of the ceiling member 64 were welded and joined. Moreover, since the part of all the welding 69 will rise when welding, the part of all the welding 69 was cut round along the ridge , and the external appearance was improved.
[0003]
[Problems to be solved by the invention]
However, it must be welded so that there is no gap between the side plates to be joined and the welded part is not melted too much, and the work of rounding the welded part is very difficult and requires skill in welding. I was trying. In particular, when the plate thickness is thin, the plate is likely to melt during welding, and when the welded part is shaved, it may be excessively shaved, and when it is overcut, sufficient strength is lost in the welded part and force is applied to the ridge . In some cases, cracks occurred in the welded part. Conversely, when corners remain without being shaved, there is a drawback that the paint does not adhere sufficiently and rusts easily. Further, the welded portion has a nest, so that the finish is poor, and the quality of the box body is deteriorated due to welding distortion.
[0004]
[Means for Solving the Problems]
In view of the problems of the above-mentioned conventional box for storing electrical equipment, the object of the present invention is not to require a skillful technique for welding work, and the paint is easy to adhere and is not easily rusted. The electrical equipment storage box is provided with a structure having at least a box body having an opening on the front surface, a ceiling member forming an upper surface of the box body, and an opening of the box body. In a box for electrical equipment storage, which is a door body covering the door, and the door body and the box body hinged by a hinge, the ceiling member is a flat plate that is the upper surface of the box body, and the front, rear, left, and right sides of the flat plate end to form a side plate that extends and to extend one end adjacent side plates to form a tongue, forming a notch of the tongue and substantially the same shape on the other end, a flat plate and folding the lateral panels at the side edge, and bending the tongue at the end of the side plate, the box ceiling member to match the tongue into the notch Fitted into the body, is that joining the side plates and the tongue of the ceiling member by spot welding to the box body.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
The ceiling member is formed of a flat plate that is an upper surface portion of the box body and a side plate that extends from the front, rear, left, and right side ends of the flat plate, and one adjacent end portion of the side plate is extended in a substantially triangular shape to form a tongue. to form a piece, to form a notch of the tongue and substantially the same shape on the other end portion, and folding the lateral panels at the side edge of the plate, and bending the tongue at the end of the side plate, the tongues The ceiling member with the notch aligned with the notch is fitted into the box body, and the side plate and tongue of the ceiling member are joined to the box body by spot welding.
[0006]
【Example】
An embodiment of an electric equipment storage box according to the present invention will be described with reference to the accompanying drawings of FIGS.
[0007]
As shown in FIG. 1, an electric equipment storage box 1 includes a box body 3 having an opening 2 on at least a front surface, a ceiling member 4 that forms an upper surface portion of the box body 3, and a box body 3. The door 5 covering the opening 2, the door 5 and the box body 3 are hinged by a hinge 6.
[0008]
As shown in FIG. 2, the ceiling member 4 is formed by a flat plate 7 serving as an upper surface portion of the box body 3 and side plates 8, 8, 8, 8 extending from the front, rear, left, and right side ends of the flat plate 7. One end of the face plates 8, 8 adjacent to each other extends in a substantially triangular shape to form a tongue piece 9, and a notch 10 having substantially the same shape as the tongue piece 9 is formed at the other end .
[0009]
Then, as shown in FIG. 3, the side plate 8 is bent at a substantially right angle at the side end portion of the flat plate 7, and the tongue piece 9 is bent at a substantially right angle inward at the end portion of the side plate 8. Is matched with the notch 10. The ceiling member 4 is fitted to the box body 3, and the side plate 8 and the tongue piece 9 of the ceiling member 4 are joined to the box body 3 by spot welding 11 with appropriate intervals. Further, the gap formed between the side plate 8 and the tongue piece 9 is filled with putty and cut flat.
[0010]
In this embodiment, the shape of the tongue piece of the ceiling member is formed in a substantially triangular shape. However, as shown in FIG. 4, the tongue piece 29 of the ceiling member 24 is formed in an arc shape, and the side plate 28 facing the tongue piece 29. The cutout 30 having substantially the same shape as that of the tongue piece 29 may be formed, or formed in another shape without any problem, and can be changed as appropriate without departing from the spirit of the present invention.
[0011]
In this embodiment, the ceiling member is formed with tongue pieces and notches facing the tongue pieces at all four corners, but the ceiling member is formed by providing the tongue pieces and the notches facing the tongue pieces at at least one corner. Even if there is no problem, as shown in FIG. 5, the side plate 48 of the ceiling member 44 on the opening 42 side of the box body 43 is extended to be part of the draining groove 52 of the box body 43. It may be formed and can be changed as appropriate without departing from the spirit of the present invention.
[0012]
In this embodiment, the gap between the side plate of the ceiling member and the tongue piece is filled with putty. However, the gap may be filled by welding, and the raised portion may be cut and flattened.
[0013]
【The invention's effect】
As described above, the electrical equipment storage box according to the present invention covers the box body having an opening at least on the front surface, the ceiling member that forms the upper surface of the box body, and the opening of the box body. In the electric equipment storage box formed by hinged the door body and the box body with a hinge, the ceiling member has a flat plate as an upper surface portion of the box main body, and front, rear, left and right side ends of the flat plate. It is formed of an extended side plate, one end of the side plate is extended to form a tongue piece, a notch having the same shape as the tongue piece is formed at the other end , and the side edge of the flat plate The side plate is bent at the end , the tongue piece is bent at the end of the side plate, and the ceiling member having the tongue piece aligned with the notch is fitted to the box body, and the side plate of the ceiling member is fitted to the box body. In addition, since the tongue pieces are joined by spot welding, a skillful technique is not required for the welding operation, and an operation for cutting the ridge is not required. In addition, since the ridge is formed by bending, it is strong and the appearance is improved, and the paint is easy to adhere and is less likely to rust.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an electric equipment storage box according to the present invention.
FIG. 2 is a development view of a ceiling member according to the present invention.
FIG. 3 is a main part perspective view showing a state in which a ceiling member according to the present invention is joined to a box body.
FIG. 4 is a developed view of a ceiling member showing a modified embodiment of the electric equipment storage box according to the present invention.
FIG. 5 is a perspective view showing a modified embodiment of the electric equipment storage box according to the present invention.
FIG. 6 is a perspective view showing a conventional electric equipment storage box.
FIG. 7 is a development view showing a conventional ceiling member.
FIG. 8 is a main part perspective view showing a state in which a side plate of a conventional ceiling member is welded.
FIG. 9 is a main part perspective view showing a state in which a ridge of a conventional ceiling member is shaved.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Electric equipment storage box 3 Box body 4 Ceiling member 7 Flat plate 8 Side plate 9 Tongue piece 10 Notch 11 Spot welding

Claims (1)

A box body having an opening at least on the front surface, a ceiling member that forms an upper surface of the box body, a door that covers the opening of the box body, and the door and the box body The ceiling member is formed by a flat plate that is an upper surface portion of the box body and a side plate that extends from the front, rear, left, and right side ends of the flat plate. , to extend the one end adjacent the side surface plate to form a tongue, a notch of the tongue and almost the same shape is formed at the other end, the side plate at the side edge of the plate The tongue is bent at the end of the side plate, the ceiling member having the tongue aligned with the notch is fitted into the box body, and the ceiling is attached to the box body. A box for storing electrical equipment, wherein a side plate and a tongue piece of a member are joined by spot welding.

Images