JPH02271696A - Manufacture of box body - Google Patents

Abstract

PURPOSE:To secure without welding work after assembling by planely providing a plurality of bolt insertion holes at adhered parts of a side panel, a ceiling plate and a bottom plate, and clamping them only by bolts and nut inserted into the holes to be assembled. CONSTITUTION:A plurality of insertion holes 4, 5 of bolts 3 are planely formed at the adhered parts of a side panel 1 and a ceiling plate 2. The plurality of holes 4 are provided on one linear line at the adhered parts, and the holes 5 are provided at different positions from the holes 4 in a vertical direction. The plate 2 and the panel 1 are clamped with the bolts 3 inserted into the holes 4, 5 and nuts to be assembled, a bottom plate is similarly formed to the plate 2, and assembled only with the bolts 3 and the nuts. Thus, the right angle accuracy of the adhered parts and the strength of diagonal direction be held without welding work after assembling to be secured.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of manufacturing a box having side panels, a ceiling plate, and a bottom plate, which can be fixed without welding after assembly.

[Conventional technology]

In a box body that has a side panel and a ceiling plate and a bottom plate formed by bending the four sides at right angles, a plurality of bolt insertion holes are generally provided in a straight line at the joints of the side panel, ceiling plate, and bottom plate. After assembling the side panel, ceiling plate, and bottom plate by tightening them with the inserted bolts and nuts, the corner parts were fixed and reinforced by welding to maintain the right angle accuracy and strength in the diagonal direction of the joint. .

[Problem to be solved by the invention]

The above manufacturing method has the disadvantage that not only the welding work after assembly requires a lot of work, but also the finishing work of the welded part with a grinder.

SUMMARY OF THE INVENTION In order to eliminate the above-mentioned drawbacks, it is an object of the present invention to provide a method for manufacturing a box body in which side panels, a ceiling plate, and a bottom plate can be fixed without welding after assembly.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention provides a joint portion between a pair of left and right side panels 1 and a ceiling plate 2 and a bottom plate formed by bending the four sides at right angles and fixing them to each other. Insertion hole 4 for bolt 3
, 5 are provided in a plurality of planes and are assembled by fixing them only with bolts 3 and nuts inserted through the holes 4.5.

[Effect]

Since the side panel 1, the ceiling plate 2, and the bottom plate are assembled by inserting the fixing bolts 3 into holes 4 and 5 provided in a plane at the joints thereof, the joints can be easily fixed without welding after assembly. It can be fixed while maintaining the right angle accuracy and strength in the diagonal direction.

〔Example〕

FIG. 1 shows an embodiment of the invention.

This figure shows the main parts of one of the pair of left and right frame-shaped side panels 1 and the ceiling plate 2 before assembly.The ceiling plate 2 has four sides bent at right angles and the adjacent bent parts. It is formed by welding or other means in a single unit. A plurality of through holes 4 and 5 for bolts 3 are provided in a plane at the joint between the side panel 1 and the ceiling plate 2.

A plurality of the holes 4 are provided in a straight line at the joint, similar to the insertion holes described in the prior art, and the holes 5 are provided at different positions in the vertical direction from the holes 4. The ceiling plate 2 and side panel 1 are assembled by tightening with bolts 3 inserted into holes 4.5 and nuts (not shown). The bottom plate (not shown) and the ceiling plate 2
It is formed in the same way as , and is assembled with only bolts 3 and nuts.

According to the above embodiment, the side panel 1, ceiling plate 2, and bottom plate are assembled by inserting the fixing bolts 3 through holes 4.5 provided in a plane at the joints thereof, so that welding work is not required after assembly. It is possible to maintain the perpendicularity accuracy and strength in the diagonal direction of the joined part without having to perform any additional steps, thereby reducing the number of steps required for assembly work and facilitating mass production.

Furthermore, if the ceiling plate 2 and the bottom plate are individually stocked, the storage space can be reduced compared to the case where finished box products are stocked.

〔Effect of the invention〕

According to the present invention, in the method for manufacturing a box having both side panels and a ceiling plate and a bottom plate formed by bending the four sides at right angles and fixing each other, bolts are inserted into the joints of the side panels, the ceiling plate, and the bottom plate. Since we created multiple holes in two planes and assembled them using only the bolts and nuts inserted through these holes, we were able to maintain the perpendicularity of the joints and the strength in the diagonal direction without having to perform any welding work after assembly. This has the effect of reducing the number of steps required for assembly work.

[Brief explanation of drawings]

FIG. 1 is a perspective view of essential parts of an embodiment of the invention. ■... Side panel, 2... Ceiling board, 3... Bolt, 4.5... Hole. Front page

Claims (1)

[Claims] 1) In a box body having a pair of left and right side panels and a ceiling plate and a bottom plate formed by bending the four sides at right angles and fixing them to each other, a plurality of bolt insertion holes are provided at the joints of the side panels, ceiling plate, and bottom plate. A method for manufacturing a box, characterized in that it is assembled in a flat manner and fixed only with bolts and nuts inserted through the holes.