JP2012175771A - Box for board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a box for board that can improve operation efficiency and environment by eliminating welding operation and coating operation, and has superior corrosion resistance.SOLUTION: The box for board is formed by combining a bottom panel 11, a plane panel 12, a left side face panel 13, a right side face panel 14, a back panel 15, and a front panel 16, each of the panels being made of a highly anticorrosive fusion plated steel plate and having respective sides bent in an U or L shape. The left side face panel 13 and right side face panel 14 are fastened and fixed to L-shaped bent sides of the bottom panel 11 and plane panel 12, and the back panel 15 is fastened and fixed to L-shaped bent sides of the left side face panel 13 and right side face panel 14, and bottom panel 11 and plane panel 12.

Description

  The present invention relates to a box body for housing a leakage breaker, a circuit breaker for wiring, a distribution device, a control device, a measurement device, and the like, such as a distribution board, a power panel, and a control panel.

  Conventionally, this type of panel box is made by bending a steel sheet that has not been rust-proofed, because the effect of the rust-proofing process is lost due to heat generated during welding. In general, the butt portion is welded, and after welding, the welded portion is finished with a grinder, and then painted to manufacture (see, for example, Patent Document 1).

JP-A-11-122725

  However, the conventional board box body has a difficulty in that the welding work and painting work that require skill are the main work of production, and suffered from the shortage of skilled technicians in production.

  In addition, the size of the conventional box for board is difficult to change once it is welded to meet the needs for size change in the middle of production. Eventually, the whole board box in the middle of production is discarded and remade. There was a risk that it had to be.

  In addition, conventional panel boxes use thinner or solvent-type paints containing volatile organic substances (toluene, xylene, etc.) during painting work, which may harm the health of workers. There was a problem of polluting.

  Therefore, the problem to be solved by the present invention is to provide a board box that can improve work efficiency and environmental performance by eliminating welding work and painting work and is excellent in corrosion resistance.

  This invention was made in order to solve the above-mentioned subject, and the box for a board concerning the invention of Claim 1 bent four sides of the rust-proof processed rectangular steel plate inside, and was L-shaped or Formed into an L shape or a U shape by bending the four sides of a bottom panel and a rust-proof rectangular steel plate, which are molded in a U shape, with the bent sides facing upward A flat panel arranged with its bent sides facing downward, and four sides of a rectangular steel plate that has been rust-proofed, folded inward to form an L-shape or a U-shape, and a bottom-side surface Is fixed to the bent side on the left side of the bottom panel, and the left side panel is fixed to the bent side on the left side of the flat panel, and a rust-proof rectangular steel plate 4 The side is bent inward to form an L shape or a U shape, and the lower end surface is the right side of the bottom panel. The right side panel is fastened to the bent side of the flat panel and the upper surface is fastened to the right side of the flat panel, and a rust-proof rectangular steel plate. And a back panel fastened to the rear side bent side of the left side panel and the rear side bent side of the right side panel. It is characterized by.

  A board box according to a second aspect of the present invention is the bottom panel according to the first aspect, wherein the bottom panel is formed into an L shape or a U shape by bending four sides of a rust-proof rectangular steel plate inward. A rectangular frame formed of a front side bent side and a front side bent side of the flat panel, a front side bent side of the left side panel and a front side bent side of the right side panel, and a bent side having a bent side. It is characterized by comprising a front panel attached to the rear side so as to be openable and closable.

  The board box according to the invention of claim 3 is a bottom panel in which four sides of a rectangular steel plate are bent inward to form an L shape or a U shape, and the bent side is disposed upward. And a flat panel formed by bending four sides of a rectangular steel plate inward to form an L shape or a U shape, with the bent side facing downward, and four sides of the rectangular steel plate inside The lower end surface is fastened and fixed to the left bent side of the bottom panel, and the upper end surface is fixed to the left bent side of the flat panel. The fixed left side panel and the four sides of the rectangular steel plate are bent inward to form an L shape or a U shape, and the lower end surface is fastened and fixed to the right bent side of the bottom panel. A right side panel having an upper end surface fastened and fixed to a bent side on the right side of the flat panel; A bent side on the rear side of the bottom panel and a bent side on the rear side of the flat panel, and a bent side on the rear side of the left side panel and a bent side on the rear side of the right side panel. And a back panel fixedly fastened.

  A board box according to a fourth aspect of the present invention is the board box according to the third aspect, wherein the four sides of the rectangular steel plate are bent inward to form an L shape or a U shape, and the bent side on the front side of the bottom panel. And a bent side facing the rear side of a rectangular frame formed from the bent side on the front side of the flat panel, the bent side on the front side of the left side panel, and the bent side on the front side of the right side panel. And a front panel that can be freely opened and closed.

  According to the board box according to any one of claims 1 to 4, since the various panels are formed by being bent into an L shape or a U shape, a large rigidity is obtained, and the left side panel. And the right side panel are fastened and fixed to the L-shaped or U-shaped bent sides of the bottom panel and the flat panel, and the back panel is L of the left side panel and the right side panel, and the bottom panel and the flat panel. Since it is fastened and fixed to the bent side of the U-shape or U-shape, the connection strength between the members equivalent to the welded structure is obtained, and mechanically by fastening with bolts and nuts without welding between the members A board box with excellent strength can be assembled.

  Moreover, according to the board box body of Claim 1 thru | or 4, a welding operation becomes unnecessary, it is not necessary to ensure a welding engineer, a rust-proof steel plate, for example, a coated steel plate or a high Corrosion-resistant hot-plated steel sheets and the like can be used, painting work is unnecessary, work efficiency and environmental performance can be improved, excellent corrosion resistance, and cost reduction.

  Here, claim 1 and claim 3 include embodiments that do not include a front panel, and claim 2 and claim 4 include a front panel for each of claims 1 and 3. The embodiment is configured to be included.

  Moreover, Claim 1 thru | or Claim 4 has a variation in the combination of the bending method (L shape or U shape) of the four sides of a rectangular steel plate, and it is comprised so that all those embodiments may be covered. Has been.

  Furthermore, since Claim 3 and Claim 4 can obtain the effect that at least welding work is unnecessary even if the steel sheet is not subjected to the rust prevention treatment, the implementation in the case of using the steel sheet not subjected to the rust prevention treatment is performed. An aspect is also included.

  ADVANTAGE OF THE INVENTION According to this invention, it is possible to eliminate a welding operation and a painting operation, to improve work efficiency and environmental performance, and to provide the board box body excellent in corrosion resistance.

It is a perspective view of the box for boards in one embodiment of the present invention. It is a principal part expanded horizontal sectional view in the y-y line | wire in FIG. FIG. 3 is an enlarged vertical sectional view of a main part taken along line tt in FIG. 1. It is a figure with which it uses for description of the structure and manufacturing method of the board | plate box in one Embodiment of this invention, Comprising: It is a figure which combines a bottom face panel and a plane panel, and a left side panel and a right side panel. It is a figure with which it uses for description of the structure and manufacturing method of the box for boards in one Embodiment of this invention, Comprising: It is a figure which attaches a reinforcing material. It is a figure with which it uses for description of the structure and manufacturing method of the box for boards in one Embodiment of this invention, Comprising: It is a figure which attaches a back panel. It is a figure with which it uses for description of the structure and manufacturing method of the box for boards in one Embodiment of this invention, Comprising: It is a figure which attaches an apparatus mounting panel. It is a figure with which it uses for description of the structure and manufacturing method of the box for boards in one Embodiment of this invention, Comprising: It is a figure which attaches a cover member. It is a figure with which it uses for description of the structure and manufacturing method of the box for boards in one Embodiment of this invention, Comprising: It is a figure which attaches a front panel.

  Hereinafter, specific embodiments to which the present invention is applied will be described in detail with reference to the drawings.

1. Configuration of Board Box 1 The present invention is applied to a board box 1 having a configuration as shown in FIGS. 1 to 3, for example. Here, FIG. 1 is a perspective view of the board box 1, FIG. 2 is an enlarged cross-sectional view of the main part of the board box 1 taken along line yy, and FIG. 3 is a board box. 3 is an enlarged longitudinal sectional view of a main part of a body 1 taken along a line tt. FIG.

  As shown in FIGS. 1 to 3, the board box 1 mainly includes a bottom panel 11, a flat panel 12, a left side panel 13, a right side panel 14, a back panel 15, and a front panel 16. It is configured by combining. These panels are made of a highly corrosion-resistant hot-dip galvanized steel sheet (for example, ZAM (registered trademark) manufactured by Nisshin Steel Co., Ltd .; hereinafter simply referred to as a steel sheet) made of a zinc-aluminum-magnesium alloy.

  As shown in FIG. 4, the bottom panel 11 is formed by bending the front side and the rear side of a rectangular steel plate into a U shape, and bending the left side and the right side into an L shape, The bent side is disposed upward. Further, as shown in FIG. 4, the flat panel 12 is formed by bending the front side and the rear side of a rectangular steel plate into a U-shape, and bending the left side and the right side into an L-shape. The bent side is disposed downward.

  And the mounting holes 17a-d are drilled in the four corners of the flat panel 12, and the suspension bolts 18a-d are attached via these mounting holes 17a-d. Further, mounting holes 19 a to 19 d are formed in the left and right bent sides of the bottom panel 11, and mounting holes 20 a to 20 d are formed in the flat panel 12 in the same manner as the bottom panel 11. Yes.

  As shown in FIG. 4, the left side panel 13 and the right side panel 14 bend the front side of the rectangular steel plate into a U shape, and the upper side, the lower side, and the rear side are L-shaped. It is formed by bending it into a shape. Mounting holes 21a to 21d are formed at the four corners of the left side panel 13, and mounting holes 22a to 22d are formed at the four corners of the right side panel 14, respectively.

  As shown in FIG. 4, the left side panel 13 and the right side panel 14 are combined with the bottom panel 11 and the flat panel 12, and mounting holes 19 a to 19 d formed in L-shaped bent sides of the bottom panel 11. Through the mounting holes 20a to d of the flat panel, the mounting holes 21a, b, c and d drilled at the four corners of the left side panel 13, and the mounting holes 22a to d drilled at the four corners of the right side panel 14. And are fastened and fixed by bolts and nuts.

  Then, as shown in FIG. 5, the reinforcing members 23a to 23d are fastened and fixed from the inside to eight corners formed by combining the left side panel 13 and the right side panel 14, and the bottom panel 11 and the flat panel 12. Has been.

  The back panel 15 is made of a rectangular steel plate, and mounting holes 24a to 24j are formed along each side as shown in FIG. Further, the rear panel 15 is provided with an L-shaped bent side on the rear side of the bottom panel 11, an L-shaped bent side on the rear side of the flat panel 12, and the rear side of the left side panel 13 through the mounting holes 24 a to j. The L-shaped bent side on the side and the L-shaped bent side on the rear side of the right side panel 14 are fastened and fixed.

  As shown in FIG. 7, the bases 25 a and 25 b formed by bending a long steel plate into a U-shape are formed between the back panel 15, the left side panel 13, and the right side panel 14. Fastened and fixed along the combination side, and a device mounting panel 26 for mounting an internal device is fastened and fixed via the bases 25a and 25b.

  In FIG. 8, reference numerals 27a and 27b denote cover members, which are formed by bending a long steel plate into a U-shape and an L-shape, respectively. As shown in FIG. 8, the cover member 27 a having a U-shaped bent side is fastened and fixed to the U-shaped bent sides on the front side of the bottom panel 11 and the flat panel 12. Further, as shown in FIG. 8, the cover member 27 a having an L-shaped bent side is fastened and fixed to the L-shaped bent side on the rear side of the bottom panel 11 and the flat panel 12.

  As shown in FIG. 9, the front panel 16 is formed in an L shape by bending four sides of a rectangular steel plate inward, and the U-shaped bent side on the front side of the bottom panel 11 and the front side of the flat panel 12 are formed. A folded side is formed in a rectangular frame formed by a U-shaped folded side, a U-shaped folded side on the front side of the left side panel 13 and a U-shaped folded side on the front side of the right side panel 14. It is attached so as to be openable and closable via hinges 29a to 29c so as to face the rear side.

  Further, the front panel 16 is provided with a clasp receiving metal fitting 28 on the front side of the left side panel 13 and is engaged with a clasp (not shown) provided on the front panel 16. And can be locked.

2. Manufacturing Method of Board Box 1 To manufacture the board box 1 configured as described above, each part is previously punched out from a high corrosion-resistant hot-dip plated steel sheet with a processing machine, and then subjected to bending. Complete each part. In assembling the board box 1, the parts are fastened and fixed by bolts, nuts and self-clinching studs using a dedicated tool according to the following procedure.

  First, as shown in FIG. 4, the bottom panel 11 is disposed so that the bent side faces upward. Then, the left side panel 13 and the right side panel 14 are applied to the bottom panel 11 from the left and right so that the bent sides face each other. At this time, the lower portions of the left side panel 13 and the right side panel 14 are respectively applied to the left and right L-shaped bent sides of the bottom panel 11. Therefore, a bolt (not shown) is inserted into the mounting holes 21c, d, 22c, d and the mounting holes 20a, b, c, d, and nuts (not shown) are fastened to the bolts. The panel 13, the right side panel 14, and the bottom panel 11 are fastened and fixed.

  Next, the flat panel 12 is sandwiched between the left side panel 13 and the right side panel 14 so that the bent side faces downward, and the upper portions of the left side panel 13 and the right side panel 14 are respectively It is applied to the left and right L-shaped bent sides. Then, bolts (not shown) are inserted into the mounting holes 21a, b, 22a, b and the mounting holes 19a, b, c, d, and nuts (not shown) are fastened to the bolts. The panel 13 and the right side panel 14 and the flat panel 12 are fastened and fixed.

  Then, as shown in FIG. 5, the reinforcing members 23a to 23d are self-clinched from the inside to eight corners formed by combining the left side panel 13, the right side panel 14, and the bottom panel 11 and the flat panel 12. Fasten and fasten with Ng studs.

  Next, as shown in FIG. 6, the rear panel 15 is attached to the rear side L-shaped bent side of the bottom panel 11 and the rear side L-shaped bent side through the mounting holes 24 a to j, In addition, the L-shaped bent side on the rear side of the left side panel 13 and the L-shaped bent side on the rear side of the right side panel 14 are fastened and fixed by bolts and nuts.

  Subsequently, as shown in FIG. 7, on the inner side of the back panel 15, the mounts 25 a and 25 b are fastened and fixed by bolts and nuts along the combination side of the back panel 15, the left side panel 13, and the right side panel 14. . Then, the device mounting panel 26 for mounting the internal devices is fastened and fixed to the gantry 25a, b with bolts and nuts.

  Then, as shown in FIG. 8, the cover members 27a and 27b are fastened and fixed to the bent sides on the front side and the rear side of the bottom panel 11 and the flat panel 12, respectively.

  Finally, as shown in FIG. 9, the stopper bracket 28 is attached to the U-shaped bent side on the front side of the left side panel 13, and the front panel 16 to which the stopper (not shown) is attached has a bent side. It is attached to the front rectangular frame via hinges 29a-c so as to face the rear side. Although not shown, the internal device is attached to the device mounting panel 26 in the panel box 1 assembled in this way.

  Thus, according to the box 1 for boards, since various panels are shape | molded by bending in L shape or U shape, big rigidity is acquired and the left side panel 13 and the right side panel are obtained. 14 is fastened and fixed to the L-shaped or U-shaped bent sides of the bottom panel 11 and the flat panel 12, and the back panel 15 is fixed to the left side panel 13 and the right side panel 14, and the bottom panel 11 and the flat surface. Since it is fastened and fixed to the L-shaped or U-shaped bent side of the panel 12, the connection strength between the members equivalent to the welded structure can be obtained, and the bolts and nuts can be tightened without welding the members. Excellent mechanical strength by wearing.

  Moreover, according to the box 1 for a board, welding work becomes unnecessary, it is not necessary to secure a welding engineer, and it is possible to use a rust-prevented steel plate, for example, a coated steel plate or a highly corrosion-resistant hot-dip galvanized steel plate. This eliminates the need for painting work, can improve work efficiency and environmental performance, has excellent corrosion resistance, and can reduce costs.

  It should be noted that the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention. For example, each member is fastened and fixed by a fastening member with a bolt and a nut. However, the fastening member is not limited to a bolt and a nut, and may be any member that can fasten each member. But you can.

DESCRIPTION OF SYMBOLS 1 Box body 11 Bottom panel 12 Flat panel 13 Left side panel 14 Right side panel 15 Rear panel 16 Front panel 17 Mounting hole 18 Hanging bolt 19 Mounting hole 20 Mounting hole 21 Mounting hole 22 Mounting hole 23 Reinforcement material 24 Mounting hole 25 Base 26 Equipment mounting panel 27 Cover member 28 Clasp bracket 29 Hinge

Claims (4)

A bottom panel that is formed into an L-shape or a U-shape by bending four sides of a rectangular steel plate that has undergone rust prevention treatment, and the bent side faces upward;
A flat panel that is formed into an L shape or a U shape by bending four sides of a rectangular steel plate that has been subjected to rust prevention treatment, and is arranged with the bent side facing downward,
Four sides of a rectangular steel plate that has been rust-proofed are folded inward to form an L-shape or a U-shape, and the lower end surface is fastened to the left bent side of the bottom panel, and the upper end side A left side panel, the surface of which is fastened and fixed to the bent side of the left side of the flat panel,
Four sides of a rectangular steel plate that has been rust-proofed are folded inward to form an L-shape or a U-shape, and the lower end surface is fastened and fixed to the right bent side of the bottom panel. A right side panel in which the surface of the flat panel is fastened and fixed to the right bent side of the flat panel;
It is made of a rectangular steel plate that has been rust-proofed, and includes a bent side on the rear side of the bottom panel and a bent side on the rear side of the flat panel, and a bent side on the rear side of the left side panel and the right side panel. A board box comprising: a rear panel fastened to a bent side of the rear side.   Four sides of a rectangular steel plate that has been rust-proofed are bent inward to form an L-shape or a U-shape, the bent side on the front side of the bottom panel and the bent side on the front side of the flat panel, and the A front panel attached to a rectangular frame formed from a bent side on the front side of the left side panel and a bent side on the front side of the right side panel so that the bent side faces the rear side can be opened and closed. The box for a board according to claim 1. A bottom panel formed by bending four sides of a rectangular steel plate inward to form an L shape or a U shape, with the bent side facing upward;
A flat panel formed by bending four sides of a rectangular steel plate inward to form an L-shape or a U-shape, with the bent sides facing downward;
Four sides of a rectangular steel plate are bent inward to form an L shape or a U shape, the lower end surface is fastened and fixed to the left bent side of the bottom panel, and the upper end surface is the flat surface. A left side panel fastened and fixed to the bent side of the left side of the panel;
The four sides of the rectangular steel plate are bent inward to form an L shape or a U shape, the lower end surface is fastened to the right bent side of the bottom panel, and the upper end surface is the flat surface. A right side panel fastened and fixed to the bent side of the right side of the panel;
It is made of a rectangular steel plate, and the bent side on the rear side of the bottom panel and the bent side on the rear side of the flat panel, and the bent side on the rear side of the left side panel and the bent side on the rear side of the right side panel. And a back panel fastened and fixed to the board box.   Four sides of a rectangular steel plate are folded inward to form an L-shape or a U-shape, the front side bent side of the bottom panel, the front side bent side of the flat panel, and the front side of the left side panel A front panel attached to a rectangular frame formed from a bent side of the right side panel and a bent side on the front side of the right side panel so as to be openable and closable so that the bent side faces the rear side. Item 4. A box for a board according to Item 3.

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