JPH0352442Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a rack shelf constructed by processing a rectangular metal plate.

(Prior art and its problems) In the conventional shelf board of this type, side walls were integrally formed on both sides along the length of a rectangular metal plate by bending the metal plate. However, when the width of the shelf is wide, the reinforcing rib required at the middle position in the width direction is constructed by bending another band-shaped metal plate and is fixed to the bottom of the shelf by welding or the like. Therefore, two parts, the shelf board body and the reinforcing ribs, are required, and the number of joints such as welding increases, resulting in high costs.

(Means for Solving the Problems) The present invention proposes a shelf board that can solve the above-mentioned conventional problems. A side wall portion protruding toward the bottom surface is formed on each side by bending a metal plate, and at an intermediate position in the width direction of the rectangular metal plate, a cross-sectional upright T is formed by moving the metal plate in the width direction and protruding toward the bottom surface side. A shape of a rib is formed along the length, and metal plate portions that overlap each other at the vertical wall portion are joined at appropriate intervals at least in the length direction.

(Example) An example of the present invention will be described below based on the attached illustrative drawings.

Figure 1 shows the entire rack, with 1 being the four corner supports;
Reference numeral 2 designates a fixed shelf plate fixed to the support 1 at a constant height between both upper and lower ends of the support 1, and 3 represents an intermediate movable shelf board supported by the support 1 at an arbitrary height as required.

As shown in FIGS. 2 and 3, the fixed shelf board 2 and the movable shelf board 3 have side walls 5 on both sides along the length of the rectangular metal plate 4 that protrude toward the bottom side of the metal plate. The rectangular metal plate 4 is formed by bending the rectangular metal plate 4 at an intermediate position in the width direction thereof, and is provided with a rib 6 having an upright T-shaped cross section and protruding toward the bottom side of the metal plate 4 in the width direction.
are formed along the length direction, and metal plate portions 4a, 4 overlap each other in the vertical wall portion 6a.
b are joined by spot welding 7 at appropriate intervals in the length direction.

The rib 6 may be provided with a hollow portion continuous in the length direction in the horizontal extension portion 6b. Further, the method of joining the metal plate parts 4a and 4b that overlap each other in the vertical wall part 6a is not limited to spot welding 7, but for example, the overlapping part 6c on the shelf surface side can be welded at appropriate intervals or continuously. You can also use adhesive to join them.

The side wall portion 5 was formed into a hollow shape by overlapping the side edge 4c of the folded metal plate 4 on the bottom surface of the shelf board and spot welding it at appropriate intervals in the length direction.
As shown in the figure, the folded metal plates can be brought into close contact with each other to form the side wall portion 8 having a two-ply structure. Furthermore, as shown in FIG. 5, side wall portions 9 can also be formed at both lengthwise ends of the shelf boards 2 and 3 by bending the metal plate 4 toward the bottom surface. In this case, the presence of the ribs 6 makes it impossible to make the side wall portion 9 continuous over the entire width, so the side wall portion 9 must be divided at the position of the rib 6.

The number of ribs 6 may be determined depending on the width and length of the shelf boards 2 and 3, and is not limited to two as shown in the drawings.

(Operations and Effects of the Invention) The shelf board of the present invention can be implemented as described above, and according to the configuration of the present invention, the shelf board of the present invention can be implemented in order to increase the bending strength in the longitudinal direction of the shelf board. The reinforcing ribs can be integrally constructed by bending the metal plate of the shelf board itself, and can be used to connect the reinforcing ribs and the shelf board as in the case of using a reinforcing rib made of another metal plate. There is no need for overlapping margins, and the amount of materials used can be reduced. In addition, when welding another reinforcing rib, both sides of the rib must be welded to the bottom of the shelf, whereas in the configuration of the present invention, a vertical wall is required to prevent the rib from spreading. Since the parts of the metal plates that overlap each other can be welded together, the number of welding points is reduced, and the overall cost can be significantly reduced.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the entire rack, Fig. 2 is a plan view of the shelf, Fig. 3 is an enlarged longitudinal sectional perspective view of the shelf, Fig. 4 is a longitudinal sectional perspective view of the main part showing a modified example, and Fig. 5. FIG. 7 is a longitudinal sectional front view of main parts showing another modification. 2... Fixed shelf board, 3... Movable shelf board, 4... Rectangular metal plate, 5, 8, 9... Side wall part, 6... Cross-sectional vertical T-shaped rib, 6a... Vertical wall part, 6b... Horizontal overhang part.

Claims (1)

[Scope of utility model registration request] On both sides along the length of the rectangular metal plate, side walls protruding toward the bottom side are formed by bending the metal plate, and at an intermediate position in the width direction of the rectangular metal plate,
The metal plate is moved in the width direction to form a vertical T-shaped rib in the cross section that protrudes toward the bottom side, and the metal plate portions that overlap each other on the vertical wall portions are formed at least in an appropriate length direction. Rack shelves made by joining at intervals.