JPS637184Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a metal mat installed at the entrance of a building, etc., and aims to provide it easily and inexpensively.

Hereinafter, the present invention will be explained based on drawings showing an example of implementation. In the figure, 1 is a long member made by pressing and deforming a cylindrical metal pipe into a flat shape and processing it into a T-shaped cross section. They are connected by orthogonal metal pipe-shaped connecting members 2. Perfect circular holes 3 are formed in each of the elongated members 1 at appropriate intervals in the longitudinal direction, and when the elongated members 1 are arranged, the circular holes 3 of all the elongated members 1 are on the same center line. They are located in such a way that they communicate with each other. After the pipe-shaped connecting member 2 is inserted into the circular holes 3 communicating with each other, a mechanical pressing force is applied from the outer surface to the portion 2 of the pipe-shaped connecting member 2 located inside the circular hole 3.
The portion 2b other than a is deformed to a large diameter, and the ends of the portion 2b deformed to the large diameter sandwich the outer surface of the circular hole 3, and the elongated members 1 are communicated with each other. Among the many elongated members 1 arranged in parallel, the ends of the pipe-shaped connecting members 2 that pass through the elongated members 1, 1 located at both ends are caulked to prevent fitting with the elongated member 1. Prevents it from coming off. 4 is a caulking part.
By the way, in order to deform only the portion 2b of the pipe-shaped connecting member 2 other than the portion 2a located inside the circular hole 3 into a large diameter by applying a pressing force, specifically, the pipe-shaped connecting member 2 is provided with a fifth As shown in the figure, two parallel cuts 2c are provided at the top and bottom of the portion 2a located inside the circular hole 3, respectively, with approximately the same width as the circular hole 3. Only the portion 2b is reliably deformed by external force. Note that a single cut 2c is formed along the inner end of the circular hole 3 in the portion 2a of the pipe-like connecting member 2 located in the circular hole 3 of the elongated member 1 at both ends. The elongated member 1 and the connecting member 2 are made of stainless steel or the like. Furthermore, in the embodiment shown in the drawings, the cross-sectional shape of the pipe-shaped connecting member 2 before being deformed by pressing is a perfect circle close to the shape of the circular hole 3, and by deforming this by pressing, the circular hole 3 is formed as shown in FIG. A portion 2b having a diameter D larger than the diameter d of is formed, and this portion 2b holds the elongated member 1 as shown in FIG. The pipe-shaped connecting member 2 may have an elliptical cross-sectional shape before being deformed by pressure, or an elliptical hole may be formed in place of the perfectly circular hole 3, and these shapes is not limited to the embodiment shown in the drawings.

By the way, in the metal mat constructed as described above, both ends of each pipe-shaped connecting member 2 are open, and in order to prevent rainwater etc. from entering into the pipe-shaped connecting member 2 from this opening, a second As shown by the two-dot chain line in the figure, a male threaded synthetic resin member 5 may be forcibly screwed into this opening. In this case, the threaded portion of the male threaded member 5 deforms within the pipe-like connecting member 2 and comes into pressure contact with the inner surface of the pipe-like connecting member 2. Furthermore, general caps may be fitted onto the openings at both ends of the pipe-like connecting member 2, or blind rivets or the like may be press-fitted therein.

Furthermore, in the embodiment shown in the drawings, the ends of the pipe-like connecting members 2 that pass through the long members 1, 1 located at both ends of a large number of long members 1 arranged in parallel are caulked. Instead of caulking, it may be fixed to the elongated members 1, 1 located at both ends by welding or the like, and the fixing means is not particularly limited.

The metal mat of the present invention can be implemented as described above, and the elongated members are connected to each other by inserting the pipe-like connecting material into the hole of the elongate member, and then inserting the pipe-like connecting material into the hole. By deforming the parts other than the connecting material part to a larger diameter by applying force from the outer surface, the elongated member is held at the ends of the deformed part, which is extremely easy to do, easy to manufacture, and inexpensive. We can provide metal mats. In particular, according to the present invention, the notch is formed in the portion of the pipe-like connecting material located in the hole of the elongated member, so that the deformation of the pipe-like connecting material between the elongated members is ensured. Therefore, the elongated member and the pipe-shaped connecting member can be firmly connected.

[Brief explanation of drawings]

The drawings show an example of the implementation of the present invention.
The figure is a partial perspective view, FIG. 2 is a vertical cross-sectional view showing the relationship between the elongated member and the pipe-shaped connecting member, FIG. 3 is a view taken along the line X-X in FIG. 2, and FIG. FIG. 5 is a perspective view of the pipe-like connecting member. 1... Long member, 2... Pipe-shaped connecting material, 2c
...notch, 3 ... circular hole, 4 ... caulking part, 5
...Male thread member.

Claims (1)

[Scope of utility model registration request] A large number of elongated metal members each having holes provided at appropriate intervals in the length direction are arranged in parallel so that the holes of these elongated members are located on the same center line, and A metal pipe-shaped connecting member is inserted into the hole in a direction perpendicular to the object, and is located in the hole of the elongate member other than both ends of the plurality of elongate members arranged in parallel. A portion of the pipe-like connecting material is provided with two parallel cuts having a width approximately the same as the width of the hole, and a hole is provided in the portion of the pipe-like connecting material located in the hole of the elongated member at both ends. A notch is provided along the inner end of the elongated member, and by pressing and deforming the part other than the part of the pipe-like connecting member located inside the hole from the outer surface, the end of the deformed part cuts the part of the elongated member outside the hole. A metal mat characterized by having two surfaces sandwiched together.