JPS636338Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a grating used for floor mats, treads, and road gutter covers used at entrances and exits of buildings.

Traditionally, narrow plate-shaped vertical strips are lined up vertically in the width direction and in parallel at equal intervals, and horizontal strips are welded perpendicularly to the strips using electric pressure welding, etc., and assembled into a grid or vertical strips. A locking groove or a locking hole is provided in each of the strips and the horizontal strips, and they are assembled in a grid pattern, and if necessary, the side plates are installed on the sides of the horizontal strips, or on both sides of the horizontal strips and the vertical strips. It has been fixed into a grid shape by welding etc. and used for various purposes as grating, but recently mats have been used to clean the soles of shoes placed at entrances and exits of buildings, and mats placed on automatic door operating switches. This type of grating has also come to be used in Unlike general gutter lids, the ones used for these purposes have narrow openings and are required to be aesthetically pleasing, so they are now manufactured from stainless steel plates, etc., and are used for floors, hallways, etc. in food manufacturing factories. Also, gratings made of stainless steel plates, which do not corrode and are hygienic, have come to be used as screen plates.

However, with this type of grating, it is necessary to narrow the spacing between the vertical strips so that shoes with narrow heels will not get caught, and since it uses stainless steel plates, it cannot avoid being expensive. .
Therefore, as seen in Japanese Utility Model Publication No. 54-35535, a reinforcing edge is provided on the upper edge by folding the edge left and right as the main constituent material, and the top surface of this reinforcing edge is A mat for automatic doors, etc., which is formed horizontally and has a T-shaped cross section, has been devised, but it requires a process of bending a thin stainless steel plate so that the cross-sectional shape is T-shaped. Yes, the top surface is folded, so
When considering the strength against the load, the bent portions require too much material, and since the T-shaped materials are assembled in a lattice shape, drilling of locking holes and assembly work are complicated.

The present invention eliminates these drawbacks, saves on materials, provides a cosmetic grating that is easy to manufacture, and will be described with reference to embodiments shown in the drawings. A narrow flat vertical strip 1 as shown in FIG. 4 and a horizontal strip 2 as shown in FIG. 4 and 5 are assembled in a lattice shape, and as shown in FIG. 2, a narrow flat plate-like top plate 3 is fixed to the vertical strips 1 by high-frequency welding or the like so that the cross-sectional shape forms a T-shape. The top view is as shown in Figure 1. The method of assembling the vertical strips 1 and the horizontal strips 2 in a lattice shape is not limited to this embodiment. Conventionally known grating manufacturing methods, such as assembling thin metal rods as pieces 2 by welding using electric pressure welding, or drilling holes in vertical strips 1 and assembling them using bolts, nuts, washers, etc. It can be manufactured according to. Alternatively, after providing a locking groove or a locking hole in the vertical strip 1 in advance, weld it to the top plate 3 to form a T-shape, and then assemble it using the horizontal strip 3, bolts, nuts, washers, etc. good.

Since the present invention is constructed as described above, there is no need to make the entire T-shaped material from a shiny stainless steel plate as in conventional products, but only the top plate 3 is made from a shiny stainless steel plate, and the other vertical For the strip 1 and the horizontal strip 2, not only can matte and inexpensive stainless steel plates be used, but also floor mats, treads,
When used for screen boards, etc., when pressure-resistant strength is not required, thin vertical strips are used, or they are used in manufacturing plants and are used for passageways for transporting goods, so they do not require pressure-resistant strength. When required, materials can be selected depending on the application, such as using thick longitudinal strips. In addition, since the materials used are narrow flat vertical strips, top plates, and horizontal strips (bars), it is not only easy to process the locking holes (grooves), assemble, and weld, but also This has the advantage of requiring less material storage space.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a partially cutaway top view, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Fig. 3 is a lattice-like arrangement of vertical strips and horizontal strips. FIG. 4 is a side view of the vertical strip, and FIG. 5 is a side view of the horizontal strip. 1...Vertical strip, 2...Horizontal strip, 3...Top plate,
4, 5...Latching groove.

Claims (1)

[Scope of utility model registration request] In a metal grating, narrow flat vertical strips 1 are arranged so that the width direction is perpendicular and at equal intervals, and horizontal strips 2 perpendicular to these are assembled in a lattice shape. A metal grating made of a narrow flat plate-like top plate 3 having approximately the same length as the vertical strips 1 and fixed to the vertical strips 1 by welding or the like so that the cross-sectional shape forms a T-shape.