JPH0118768Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a lattice body useful as fences, handrails, etc., and its purpose is to eliminate the need for welding, which is associated with thermal embrittlement, and to eliminate the complicated assembly work using screws. To provide a lattice body rich in aesthetic appearance in which vertical bars and horizontal bars are firmly fixed even if the vertical bars and horizontal bars are omitted.

The conventional technology related to this kind of lattice body is
As shown in Publication No. 99449, vertical bars are formed on the horizontal bars by making linear notches in the band-like ridges formed inwardly above and below the horizontal bars, and forming similar notches in the tube ends of the vertical bars. Although a method of fitting is known, in this case a clearance is created between the fitted notches and the vertical bars are rattled, so it cannot be said that the condition is necessarily satisfactory.

In view of these circumstances, the inventor of the present invention has made extensive studies, and as a result, when installing a plurality of pipe-shaped vertical bars 2, 2... between the horizontal bars 1, 1 arranged in the upper and lower positions,
Belt-shaped projecting edges 3, 3 are formed on the upper and lower inner sides of the horizontal bars 1, 1, and a pair of notches are formed in the band-shaped projecting edges, separated by a distance corresponding to the width of the pipe-shaped vertical bar 2, and having a bent shape at an intermediate position. 4, 4, and a pair of protrusions 5, 5 are provided on both sides of the pipe-shaped vertical bar 2 with a gap corresponding to the wall thickness of the band-shaped protrusions 3, 3, and from the pipe end of the vertical bar 2. Holes 6, 6 are bored in the pipe portion narrowed by the pair of protrusions 5, 5 at a slightly inward position, and the pipe portion of the vertical bar 2 is inserted into the notches 4, 4 of the horizontal bar 1, 1. Press fit and make notch 4
The intended purpose is achieved by engaging the bent portions with the through holes 6, 6 of the vertical beam 2.

The present invention has the above-mentioned configuration, in which band-shaped projecting edges 3, 3 are formed on the upper and lower inner sides of the horizontal bars 1, 1, and the band-shaped projecting edges are separated by a distance corresponding to the width of the pipe-shaped vertical bar 2, and are arranged at an intermediate position. A pair of notches 4, 4 with bent shapes are bored, and a pair of protrusions 5, 5 are provided on both sides of the pipe-shaped vertical bars 2, 2..., slightly inward from the pipe ends of the vertical bars 2. Holes 6, 6 are bored in the pipe portion narrowed by the pair of protrusions 5, 5 at the position of The bent parts 4, 4... can be assembled very easily by engaging the through holes 6, 6 of the vertical bar 2, and the notches 4, 4... in the band-shaped ridge 3 of the horizontal bar 1 are bent The holes 6, 6 of the vertical bar 2 can be forcibly fitted into the holes 6, 6 of the vertical bar 2, and both can be fixed extremely firmly. A pair of protrusions 5, 5 on both sides of the vertical bar 2 are provided at the inner position and in the pipe portion narrowed by the pair of protrusions 5, 5, when the vertical bar 2 and the horizontal bar 1 are fitted together. 5 can cover the bent notches 4, 4, and enhance the beauty of the lattice body.For its manufacture, an aluminum extrusion material is used and it can be press punched, making it suitable for mass production. The practical effects are great, such as making it more suitable.

[Brief explanation of the drawing]

FIG. 1 is a front view showing the proposed lattice body, FIG. 2 is an enlarged perspective view of the main part showing the horizontal bars of the proposed lattice body, and FIG. 3 is an enlarged perspective view with some parts missing showing the vertical bars of the proposed lattice body. Fig. 4 is an enlarged partial cross-sectional front view showing the main parts of the proposed lattice body. Represents a hole.

Claims (1)

[Scope of utility model registration request] In a lattice body in which a plurality of pipe-shaped vertical bars are provided between horizontal bars arranged at upper and lower positions, band-shaped projecting edges are formed inwardly above and below the horizontal bars, and the pipe-shaped vertical bars are formed on the band-shaped projecting edges. A pair of notches are bored at a distance corresponding to the width and have a bent shape at the middle position, and a pair of protrusions are formed by leaving a gap corresponding to the thickness of the band-shaped ridge on both sides of the pipe-shaped vertical bar. A through hole is bored in the pipe portion narrowed by the pair of protrusions at a position slightly inward from the pipe end of the vertical bar 2, and the pipe portion of the vertical bar is press-fitted into the notch of the horizontal bar. A lattice body characterized in that the bent portions of the notches are engaged with the through holes of the vertical bars.