JPH10210607A - Switch gear - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance external appearance and commodity value, and improve workability of the fixing work of a decorative laminate by excluding the exposed part of a bolt on the outer surface of the decorative plate. SOLUTION: A mounting segment 20 is formed parallel with a decorative plate 18, by being bent from the end portion of a bent segment 19 on the door 2 side of the front surface and the rear surface of a switch gear main body 1. The base portion of an outer fixing metal fitting 21 is fixed to the upper part and the lower part of the mounting segment 20. An outer bolts 23 which penetrate an upper frame 3 and a lower frame 4 from the inner surface side is screwed to a nut 22, fixed on the outer surface of the top part. Inner fixing metal fittings 24 having L-shaped sections are welded to the insides of an upper edge part and a lower edge part on the bonding side of both decorative plate. An inner bolt 26 penetrating an inner fixing metal fitting 24 from the outer surface side is screwed to spiral trenches on the upper frame 3 and the lower frame 4. A lid body 28 is fitted to a bolt insertion hole 27 which is formed in both of the decorative plate 18 outside the inner bolt 26 and has a diameter larger than that of the part of the inner bolt 26. The head part of the inner bolt 26 is covered with the lid body 28.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switchgear in which two decorative plates are juxtaposed on a side surface of a switchgear body in order to improve the external appearance.

[0002]

2. Description of the Related Art A conventional switchgear of this type will be described with reference to FIGS. 3A and 3B which are a perspective view and a partial plan view thereof. In the figure, 1 is a row of switchgear bodies arranged side by side on a base, 2 is doors provided on the front and rear surfaces of the body 1, respectively, 3, 4, 5, 6 and 7 are the bodies of the body 1. The upper frame, lower frame,
Vertical front frame, rear frame and intermediate frame,
Numeral 8 is a nut, one each at the front, rear, and center of the inner surfaces of the upper and lower frames 3 and 4, a plurality of nuts at the inner surfaces of the front and rear frames 5 and 6, and at the left of the center of the intermediate frame 7. One to the right,
Each is welded.

[0003] Numeral 9 denotes two decorative plates joined side by side to the side surface of the main body 1 at the end of the row, and the inner surface of the peripheral portion is the outer surface of each of the frames 3, 4, 5, 6, and 7. Is joined to.
Reference numeral 10 denotes a bent piece formed by bending outwardly on the peripheral edge of the joint side of the two decorative plates 9, and the both bent pieces 10 are joined.

[0004] Reference numeral 11 denotes a vertically long lid, which comprises a cover 12 having a U-shaped horizontal cross section and a mounting portion 13 bent outward from both ends of the cover 12. 12 covers both bent pieces 10, and both mounting portions 13 are joined to both decorative plates 9.

[0005] Reference numeral 14 denotes a bolt on the periphery, which is a flat washer 1.
5, through the spring washers 16, the peripheral edges of both decorative plates 9 except for the joining side and the respective frames 3, 4, 5, 6 penetrate from the outer surface side and are screwed into the respective nuts 8; Both decorative plates 9 are attached to 5,6. Reference numeral 17 denotes a bolt on the joining side, which penetrates through both the mounting portions 13 of the lid 11, the joining side of the decorative plate 9 and the intermediate frame 7 from the outer surface side via the flat washer 15 and the spring washer 16, and is screwed into each nut 8. The joint side of the decorative board 9 and the lid 11 are attached to the intermediate frame 7.

Next, regarding another conventional switchgear,
A description will be given with reference to FIGS. 4A and 4B which are a perspective view and a partial cutaway plan view thereof. 3, the same reference numerals as those in FIG. 3 denote the same or corresponding components.

Reference numeral 18 denotes two decorative plates joined to the side surface of the main body 1 and juxtaposed, 19 denotes a bent piece formed by bending the peripheral edge of both decorative plates 18, and 20 denotes a decorative plate. It is a mounting piece,
It is further bent from the ends of the bent pieces 19 on the front and rear doors 2 side, and formed parallel to the decorative plate 18.

Reference numeral 21 denotes an outer fixing bracket, whose bases are fixed to the upper and lower portions of both mounting pieces 20, respectively, and the inner surfaces of the distal ends are joined to the upper and lower frames 3 and 4, respectively. Reference numeral 22 denotes an outer nut welded to the outer surface (the surface on the decorative plate 18 side) of the distal end portion of the outer fixture 21, and 23 denotes an outer bolt via upper and lower frames 3, 4 via a flat washer 15 and a spring washer 16. Through the inner surface and screwed to the outer nut 22.

Reference numeral 24 denotes an inner fixing bracket having an L-shaped cross section, which is welded to the inside of the upper edge and the lower edge of the joint side of the decorative plates 18 and whose inner surface is joined to the outer surfaces of the upper and lower frames 3 and 4. ing. Reference numeral 25 denotes an inner nut welded to the outer surface of the inner fixture 24, and reference numeral 26 denotes an inner bolt.
6, the upper and lower frames 3, 4 and the inner fixture 24
Is screwed into the inner nut 25 through the inner surface side, the peripheral portions of the decorative plates 18 are mounted on the upper and lower frames 3 and 4, and the decorative plates 18 are mounted on the side surface of the main body 1.

[0010]

In the case of the conventional switch gear shown in FIG. 3, the decorative plate 9 and the bolts 14 of the lid 11 are used.
Although the work of tightening 17 is performed from the outer surface side, the workability is excellent, but there is a problem that the heads of the bolts 14 and 17 are exposed on the outer surface of the decorative plate 9 and the appearance is inferior and the commercial value is reduced. .

In the case of the switchgear shown in FIG. 4, the decorative portions 18 cover the shaft portions of the outer and inner bolts 23 and 26 and the outer and inner nuts 22 and 25. And the aesthetic appearance is excellent, but the tightening of the bolts 23 and 26 must all be performed from the inner side of the upper and lower frames 3 and 4.
In the fastening operation of the inner bolt 26 on the joining side of the above, the position is restricted due to the relation with the storage device in the main body 1 and the fastening operation is difficult. There is a problem that it costs.

In addition, since it takes time to attach the two decorative plates 18, there is a problem that the power outage time becomes longer when the main body 1 is added.

In view of the above, the present invention eliminates the exposed portions of the bolts on the outer surface of the decorative plate, thereby improving the aesthetic appearance and commercial value of the outer surface, and improving the workability of the mounting operation of the decorative plate. It is an object of the present invention to provide a switchgear capable of shortening a power outage time at the time of expansion.

[0014]

In order to solve the above-mentioned problems, a switchgear according to the present invention is provided with a switchgear body having doors provided on the front and rear surfaces, and is provided side by side on the side of the body. Two decorative boards, a bent piece formed by bending the peripheral edges of the two decorative boards, and further bent from the ends of the bent pieces on both door sides to be parallel to the decorative board. And a base fixed to upper and lower portions of the mounting pieces, and an inner surface of a tip portion is connected to the upper and lower frames of the main body. A nut welded to the outer surface of the tip, an outer bolt penetrating the upper and lower frames from the inner surface, and screwing the nut; and an upper edge and a lower edge of the joint side of the decorative plates. Section L welded inside and joined to the upper and lower frames
Inner fixing brackets, inner bolts which penetrate the inner fixing brackets from the outer surface side and are screwed into the screw grooves of the upper and lower frames, and formed on the two decorative plates outside the inner bolts. A bolt insertion hole having a diameter larger than the head of the inner bolt thus formed, and a lid that fits into each of the insertion holes and covers the head.

Therefore, the bases of the outer fixing brackets are fixed to the upper and lower portions of the mounting pieces formed in parallel with the decorative plate by further bending from the ends of the bent pieces on the door side on the front and rear surfaces of the main body. An outer bolt that penetrates the upper and lower frames from the inner surface side is screwed into a nut fixed to the outer surface of the tip of the outer fixing bracket, and the inside of the upper edge and lower edge of the joint side of both decorative plates is screwed. An inner fixing bracket having an L-shaped cross section was welded, and an inner bolt that penetrated the inner fixing bracket from the outer surface side was screwed into a screw groove on the upper and lower frames, and formed on both decorative plates outside the inner bolt. ,
The lid was fitted into the bolt insertion hole with a larger diameter than the head of the inner bolt, and the head of the inner bolt was covered with the lid, so there was no exposed portion of the bolt on the outer surface of the decorative board, and the aesthetic appearance and commercial value of the outer surface Can be improved.

Further, since the inner bolts can be tightened from the outer surface side, the workability of the work of attaching the decorative board can be improved, and the power outage time when adding the main body can be shortened.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS According to one embodiment, a cutaway plan view of a part of FIGS. 1A and 1A in a perspective view and a cutaway left side view of FIGS. 2A and A in an enlarged front view of a part of FIG. 1A are shown. A description will be given with reference to FIG. In these figures, the same reference numerals as those in FIG. 4 indicate the same or corresponding elements, and the differences are as follows.

27 is larger in diameter than the head of the inner bolt 26,
Further, it is a bolt insertion hole into which a box spanner can be inserted, and is formed outside the inner bolt 26 at the upper edge and the lower edge of the joint side of the two decorative plates 18. Reference numeral 28 denotes a lid made of a resin-made product, which includes a flat spherical cover portion 29 having a larger diameter than the insertion hole 27 and a cylindrical portion 30 having a smaller diameter than the cover portion 29. The part 30 is fitted in the insertion hole 27.

Then, an inner nut 25 is welded to the inner surfaces of the central portions of the upper and lower frames 3 and 4, and an inner bolt 26 passes through the insertion hole 27, passes through the flat washer 15 and the spring washer 16, and forms the two decorative plates 18. The inner fixture 24 welded to the upper and lower edges of the joining side penetrates from the outer surface side, is screwed into the inner nut 25, and the cylindrical portion 30 of the lid 28 is fitted into the insertion hole 27 and fitted. However, the head of the inner bolt 26 is covered with the cover 29, and the head of the inner bolt 26 is not exposed on the outer surface of the decorative board 18.

When tightening the inner bolt 26,
The inner bolt 26 and the box spanner are inserted into the insertion holes 27, and the inner bolt 26 is tightened by the spanner.

In the above embodiment, the inner nut 25 is welded to the inner surfaces of the central portions of the upper and lower frames 3 and 4.
A screw groove may be formed directly in the center of the upper and lower frames 3 and 4.

[0022]

Since the present invention is configured as described above, it has the following effects. The switchgear of the present invention is further bent from the ends of the bent pieces 19 on the door 2 side on the front and rear surfaces of the switchgear body 1 to form the decorative plate 18.
The upper and lower frames 3 and 4 are fixed to the upper and lower portions of the mounting piece 20 formed in parallel with the base member of the outer fixture 21 and the nut 22 fixed to the outer surface of the tip of the outer fixture 21. Screw the outer bolt 23 penetrating from the inner surface side,
An inner fixing metal fitting 24 having an L-shaped cross section is welded to the inside of the upper edge and the lower edge of the joint side of the two decorative plates 18, and the upper and lower frames 3,
An inner bolt 26 that penetrates the inner fixture 24 from the outer surface side is screwed into the screw groove on the fourth side, and has a larger diameter than the head of the inner bolt 26 formed on both decorative plates 18 outside the inner bolt 26. The cover 28 is fitted in the bolt insertion hole 27 of the above, and the head of the inner bolt 26 is covered by the cover 28, so that there is no exposed portion of the bolt on the outer surface of the decorative plate 18, thereby improving the aesthetic appearance and commercial value of the outer surface. be able to.

Further, since the tightening operation of the inner bolts 26 can be performed from the outer surface side, the workability of the mounting operation of the decorative plate 18 can be improved, and the power outage time when adding the main body 1 can be shortened. .

[Brief description of the drawings]

FIG. 1A is a perspective view of one embodiment of the present invention, and FIG. 1B is a partial plan view of A.

2A is an enlarged front view of a part of FIG. 1A, and FIG. 2B is a cut-away left side view of A.

3A is a perspective view of a conventional example, and FIG. 3B is a cut-away plan view of a part of A.

FIG. 4 is a perspective view of another conventional example of A, and FIG. 4B is a partially cut-away plan view of A.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Switchgear body 2 Door 3 Upper frame 4 Lower frame 18 Decorative plate 19 Folding piece 20 Mounting piece 21 Outer fixing bracket 22 Nut 23 Outer bolt 24 Inner fixing bracket 26 Inner bolt 27 Bolt insertion hole 28 Lid

Claims (1)

[Claims] 1. A switchgear body having doors provided on a front surface and a rear surface, two decorative plates joined to a side surface of the main body and arranged side by side; A bent piece formed, a mounting piece further bent from an end of the bent piece on both door sides and formed in parallel with the decorative plate, and a base having upper and lower portions of the both mounting pieces, respectively. An outer fixing bracket fixed to the main body and having an inner surface of a distal end joined to the upper and lower frames of the main body; a nut welded to an outer surface of the distal end of each outer fixing metal; An outer bolt that penetrates from the side and is screwed to the nut; an inner side having an L-shaped cross-section welded to the inside of the upper edge and the lower edge of the joint side of the decorative plates and joined to the upper and lower frames A fixing bracket, penetrating each of the inner fixing brackets from the outer surface side, and An inner bolt screwed into the thread groove of the inner bolt; And a cover covering the head.