JPS6235736Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a grating used in a place where a relatively light load is applied, particularly in a gutter in a building where rusting is to be avoided. This type of grating tends to require aesthetics as well as functionality, so stainless steel with high rust resistance is used, and due to cost considerations, it is thin, around 1 mm. To assemble these stainless steel members into a basket shape, a large number of members with a T-shaped cross section called main bars are arranged in parallel, and a round bar called a cross bar is passed through the main bars at right angles to the main bars. A collar fitted into the cross bar maintains an equal distance between them, and nuts are screwed onto the screws at both ends of the cross bar to tighten the main bar and the cross bar.

After that, the side plates are fixed on both sides of the main bar to complete the assembly.This fixing method involves spot welding the main bar and side plates at appropriate places, or cross welding as disclosed in Publication of Utility Model Publication No. 57-6630. In the former case, where a part of the circumference of the bar is shaved to make it flat, the cross bar is inserted into holes drilled outward at both ends of the main bar, and fixed in place with screws, etc. In the former case, the welding condition is This often results in irregularities that impair the aesthetic appearance, and the latter has the disadvantage that the cross bar and main bar each require complicated machining, which requires a large amount of man-hours.

The present invention solves this problem by providing a relatively simple U-shaped mounting bracket without impairing the aesthetic appearance of the product.

The present invention will be explained below with reference to the drawings. FIG. 1 shows a plan view of the grating. 10 is a main bar with a T-shaped cross section, and a large number of them are arranged in parallel.

A cross bar 20 is inserted through the main bar 10. A plurality of holes 11 are bored at appropriate locations. A cross bar 20 is inserted into the hole 11 of the main bar so as to be perpendicular to the main bar, and a collar 21 is loosely fitted between adjacent main bars, so that the main bars 20 are kept at an appropriate distance. . Both ends 22 of this cross bar are threaded and tightened by screwing nuts 23, as shown in the longitudinal sectional view of FIG. Reference numeral 30 denotes a side plate, which is fixed to the main bar by a mounting bracket 40. The mounting bracket 40 has a U-shape as shown in the perspective view in FIG. Figure 4 shows the mounting bracket 4, which is slightly larger than the outside diameter of 21.
The outer surface 4 of the leg of the mounting bracket 40 is a cross-sectional view of the main bar 10 and the side plate 30 fixed at 0.
3 and 43' are inscribed in the bodies 12 of adjacent main bars 10, and the cross bars 20 are inserted into the holes 42 and 42'. Further, a collar 21 is fitted into the crossbar 20 between the legs 41, 41', as in other parts. The outside of the body 44 of the mounting bracket 40 is flush with the end surface 13 of the main bar 10,
The side plate 30 is fixed to this with countersunk screws 45. In this manner, the main bar 10 and the side plate 30 are connected at an appropriate location between them. In this embodiment, the main bar has a T-shape, but the present invention can also be applied to a main bar having a flat shape.

As a result of the above-mentioned configuration, the present invention has a simple structure and fixing means in which U-shaped mounting brackets are inserted between the main bars into both outer crossbars, and the side plates are fixed to these. can be manufactured. In addition, unlike conventional methods, it is not necessary to provide welding means or a specially shaped cross bar and special holes in the main bar to insert the cross bar, and the completed grating is also more efficient than these methods. It has the excellent effect of being strong.

[Brief explanation of the drawing]

1 is a plan view, FIG. 2 is a vertical sectional view, FIG. 3 is a perspective view of the mounting bracket, and FIG. 4 is a partial cross-sectional view. 10...Main bar, 20...Cross bar, 2
1... Collar, 30... Side plate, 40... Mounting bracket, 41, 41'... Leg, 42, 42'... Hole,
44... Torso.

Claims (1)

[Scope of utility model registration request] In a lattice frame assembled with main bars 10 arranged in parallel and a plurality of cross bars 20 fitted with collars 21 on the outer periphery to maintain the spacing between the main bars 10, both legs 41 are provided with holes 42, 42 through which the cross bars 20 are inserted. A plurality of U-shaped mounting brackets 40 with the distance between the outer sides of 41 equal to the interval between the main bars, and the mounting brackets 40 are installed at appropriate locations at each interval of the main bar 10 through which both outer cross bars 20 are inserted. An assembly type grating that is fixed via the cross bar 20, and the body part 44 of the mounting fitting 40 and the side plate 30 are fixed with countersunk screws or the like.