JP3221978U - Roof square steel - Google Patents

Abstract

[PROBLEMS] To provide a roof steel having a simple structure and a high strength, which forms a framework of a roof of a vinyl house having a metal frame and a building cabin, and bears the snow load of the roof. A flat top surface 2, a flat left surface 3 hanging to the left of the top surface 2, a flat right surface 4 hanging to the right of the top surface 2, and a series of bottoms of the left surface 3 and the right surface 4 And the bottom surface 5 is located on the left side of the recess 5a, and the recess 5a is curved inward at the center of the bottom surface 5 in the longitudinal direction. And a right flat portion 5c located on the right side of the recess 5a. [Selected figure] Figure 1

Description

  The present invention mainly relates to a roof steel having a simple structure and strength, which forms a skeleton of a metal frame vinyl house and a roof of a building cabin and bears the snow load of the roof.

There is a pipe for vinyl houses as shown in patent documents 1 as steel materials for conventional snow load measures. As shown in FIG. 2, the vinyl house pipe of Patent Document 1 can sufficiently withstand the load of snow even when a load of snow is applied from the top of the vinyl house, and can prevent the collapse of the vinyl house. It is a pipe for house,
A rectangular pipe whose corner is formed by a curved surface and has four side surfaces, and a groove formed by an inwardly curved surface in the center of each of the two side surfaces that are vertically located when placed horizontally on the ground ( When a load is applied to the upper portion, the curved groove 2) and the inclined surface 3 formed to be curved inward at the center on each of the two side surfaces on the left and right when installed horizontally on the ground First, the curved groove 2 formed in the upper part repels to this load, and when a higher load is applied, a repulsive force generated inside acts on the inclined surface 3 so that the pipe for vinyl house withstands the load. It is something that can increase the power.

  However, the forming is complicated, and the installation of the rod to be transferred to the upper side is not considered, and in the case of mere welding, the contact points are limited to two places, and the strength of the fixing point is weak and not sufficient.

JP, 2009-213355, A

  Therefore, the present invention forms a roof frame of a vinyl frame of a metal frame and a building cabin, and provides a roof steel having a simple structure and strength that can withstand the snow load of the roof.

The present invention solves the above-mentioned problems,
(1)
An inner surface formed of a flat top surface, a flat left side surface hanging down to the left of the top surface, a flat right side surface hanging down to the right of the top surface, and a bottom surface continuously connected to the bottom of the left side surface and the right side surface Hollow roof square steel,
The bottom surface is composed of a concave portion which is concavely curved toward the inner hollow side at the longitudinal center of the bottom surface, a left flat portion located on the left side of the recessed portion, and a right flat portion located on the right side of the recessed portion. Roof square steel characterized by
(2)
Further, a fixing member having an L-shaped cross section comprising: a bottom plate fixed to the upper surface; and a vertical plate having a hole through which a bolt for fixing a horizontally extending rod erected to the bottom plate is fixed. The roof square steel product according to claim 1, comprising:
Configuration.

  Since this invention is the said structure, it can provide the roof square steel which bears the snow load of a roof.

It is a perspective view at the time of use of the square steel for roofs which is the present invention. Set up a plurality of frames, pass a rod (not shown) in the horizontal direction perpendicular to the top surface, and stretch a vinyl sheet (not shown). It is explanatory drawing of the pipe for vinyl houses of patent document 1. FIG.

  Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the attached drawings. The present invention is not limited to the following embodiments.

  FIG. 1 shows one frame of a skeleton 10 of a vinyl house using the roof square steel 1 of the present invention as a roofing material. The framework 10 comprises curved left and right roof square steel members 1 and 1a connected to the left and right vertical rods 8 and 8a, and a fixing member 7 on the upper surface 2. The left and right roof square steel members 1 and 1a have the same shape but different left and right directions. Therefore, as a representative, the roof square steel 1 will be described.

  The left and right roof square steel products 1, 1a may be connected by welding or by connecting beams with bolts and nuts, etc., by arranging beams at the center. Also, it may be integrally molded.

  The roof steel 1 is a square of the inner hollow 6 and has a flat upper surface 2, a flat left surface 3 hanging to the left of the upper surface 2, a flat right surface 4 hanging to the right of the upper surface 2, and a left side It comprises a bottom surface 5 connected to the bottom of the surface 3 and the right side surface 4.

  The bottom surface 5 has a recess 5a which is recessed in a curved shape toward the inner hollow 6 at the center in the longitudinal direction of the bottom surface 5, a left flat portion 5b located on the left side of the recess 5a, and a right flat portion 5c located on the right side of the recess 5a. It consists of

  The fixing member 7 is provided with a bottom plate 7a fixed to the upper surface 2 and a hole 7c for passing a bolt (not shown) for fixing a rod (not shown) extending in the lateral direction perpendicular to the bottom plate 7a. It is an L-shaped cross section which comprises the provided vertical plate 7b.

  The vertical bars 8 and 8a may also be adopted in a linear shape by providing a recess 8b on one side surface of the hollow hollow steel bar steel, as in the case of the roof square steel 1.

  Since the present invention has the above-mentioned configuration, the forming is extremely easy as compared with the prior art, and since the upper surface 2 is flat and the bottom plate 7a of the fixing member 7 is flat, the fixing is easy. It is easy to fix, high in fixed strength, and can provide roof square steel that can withstand snow load with a simple structure.

Reference Signs List 1 roof square steel 1a roof square steel 2 top 3 left side 4 right side 5 bottom 5a concave 5b left flat 5c right flat 6 hollow 7 fixing member 7a bottom plate 7b vertical plate 7c hole 8 vertical bar 8a vertical bar 8b concave 10 frame

Claims (2)

An inner surface formed of a flat top surface, a flat left side surface hanging down to the left of the top surface, a flat right side surface hanging down to the right of the top surface, and a bottom surface continuously connected to the bottom of the left side surface and the right side surface Hollow roof square steel,
The bottom surface is composed of a concave portion which is concavely curved toward the inner hollow side at the longitudinal center of the bottom surface, a left flat portion located on the left side of the recessed portion, and a right flat portion located on the right side of the recessed portion. Roof square steel characterized by Further, a fixing member having an L-shaped cross section comprising: a bottom plate fixed to the upper surface; and a vertical plate having a hole through which a bolt for fixing a horizontally extending rod erected to the bottom plate is fixed. The roof square steel product according to claim 1, comprising:

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