JPH1130040A - Building girder metal fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a building girder metal fixture capable of facilitating the welding work as well as an accurate mounting position. SOLUTION: A girder mounting hole 2 is opened in a vertical piece 1b bent and erected from a basic piece 1a of an L-shaped metal fixture, at the same time, a space 3 capable of putting a lip of a rolled steel beam is made to the lower surface of the basic piece 1a to bent a pushing plate 1c to form, the vertical width 4 of the pushing plate 1c is so set that it can be advanced to the inside of a groove from a lip opening and, at the same time, the horizontal width 5 of the pushing plate 1c is so set that it can be interlocked with both right and left lips of the rolled steel beam. A pushing mechanism 6 for pushing the puching plate 1c toward the basic piece.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a girder fastener for mounting a steel girder for fixing a roofing material or a wall material to a building having a steel structure.

[0002]

2. Description of the Related Art Conventionally, in order to construct a roof or a wall surface in a building, a steel beam is provided on a steel structure and a beam girder for attaching a steel beam to fix a roof material or a wall material to the steel beam. Had to be welded. In this welding, since the mounting position is inked, and the girder metal fitting is directly welded based on the inking, misalignment is likely to occur during welding. However, once welded, it is difficult to correct the misalignment, and the roofing material and the wall material were attached as they were. However, the misalignment complicates the installation work and often causes poor installation. was there.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a girder metal fastener for a building, which can be mounted accurately and can be easily welded.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides a vertical piece bent and raised from a base piece of an L-shaped metal fitting, through which a mounting hole for attaching a girder is provided, and a lower surface of the base piece. The pressing plate is bent and formed with a gap in which the lip of the mold steel beam can be interposed. The construction girder metal fitting having a pressing mechanism that presses the pressing plate toward the base piece and has a size that can be locked to the base plate, wherein the pressing mechanism is a female screw of the pressing plate in the invention of claim 1 A construction girder fastener comprising a part and a bolt screwed into the female screw part through a bolt insertion hole of the base piece is the invention of claim 2, and in the invention of claims 1 and 2, it is provided through the L-shaped fitting. Architectural girders with reinforcing ribs formed around the perimeter of the hole It is an invention of claim 3.

Next, a preferred embodiment of the present invention is shown in FIG.
4 will be described in detail. 1 is an L-shaped bracket,
The L-shaped fitting 1 is composed of a base piece 1a, a vertical piece 1b bent upright from the base piece 1a, and a pressing plate 1c bent downward from the front edge of the base piece 1a. Mounting holes 2 and 2 are provided. The pressing plate 1c is formed to have a gap 3 on the lower surface of the base piece 1a so that the lip 10a of the mold steel beam 10 can be interposed therebetween. Further, the pressing plate 1c has a front-rear width 4 that is large enough to enter the groove 10c through the lip opening 10b of the mold steel beam 10, and a left-right width 5 of the pressing plate 1c that can be locked between the left and right lips 10a of the molded steel beam 10. At the same time, the left and right edges are arcuate so as to be rotatable in the groove 10c of the mold steel beam 10, that is, the width that can be locked to the lip 10a is maximized.

Reference numeral 6 denotes a pressing mechanism. The pressing mechanism 6 comprises a female screw 7 of the pressing plate 1c and a bolt 9 screwed into the female screw 7 through the bolt insertion hole 8 of the base 1a. The pressing mechanism 6 interposes a lip 10a of the mold steel beam 10 between the base piece 1a and the pressing plate 1c, and clamps the lip 10a between the base piece 1a and the pressing plate 1c by tightening a bolt 9. . 11 is mounting holes 2, 2,
Reinforcing ribs formed on the periphery of the holes formed in the L-shaped fitting 1 such as the bolt insertion holes 8 and the female screw portions 7.

[0007] With such a structure, a large number of steel beams 10 arranged on a steel structure are provided with L
With the pressing plate 1c of the mold 1 facing, the pressing plate 1c is inserted into the lip opening 10b of the steel beam 10 as shown in FIG.
And the L-shaped bracket 1 is rotated as shown by a chain line. At this time,
It is necessary to arrange the pressing plate 1c below the lip 10a through the lip opening 10b. In addition, since the left and right edges of the pressing plate 1c are arc-shaped at the time of this rotation, the pressing plate 1c is rotated without colliding with the inner wall of the groove 10c of the shaped steel beam 10.
Then, as shown in FIG. 3, the pressing plate 1c is arranged at a position where the L-shaped bracket 1 is rotated by 90 °, that is, at a position where the steel beam 10 and the L-shaped bracket 1 are orthogonal to each other.

At this time, since the width 5 of the pressing plate 1c is larger than the lip opening 10b, both sides of the pressing plate 1c are arranged on the lower surface of the lip 10a. In this state, the bolt 9 of the pressing mechanism 6 is screwed into the female screw portion 7 of the pressing plate 1c through the bolt insertion hole 8, so that the lip 10a is pressed and clamped between the base piece 1a and the pressing plate 1c, and the L-shaped fitting 1 is pressed. Is temporarily fixed to the mold steel beam 10. If the position of the L-shaped bracket 1 is deviated during this temporary fixing, the bolt 9 as the pressing mechanism 6 is loosened to adjust the position of the L-shaped bracket 1, and the L-shaped bracket 1 is temporarily tightened by the pressing mechanism 6 again. Stop it. Thus, L
The mold 1 is temporarily fixed to the mold beam 10, and the L-form 1 is welded and fixed to the mold beam 10. Then, the steel girder 20 is bolted to the welded and fixed L-shaped bracket 1, and the steel girder 20 is fixed.
A roofing material, a wall material, or the like may be attached to the device. In a preferred embodiment, the female screw 7 of the pressing mechanism 6 is provided with a pressing plate 1c.
Although the workability is enhanced integrally with the above, the nut may be a separate nut. Also, in the preferred embodiment, the L-shaped bracket 1 is welded to the section steel beam 10, but the load applied to the L-shaped bracket 1 is reduced. When the size is small, it is needless to say that the temporary fixing by the pressing mechanism 6 may be permanently fixed without welding.

[0009]

As is apparent from the above description, the present invention is such that the L-shaped metal fitting for mounting the roof steel beam girder is fixed to the steel beam by the pressing mechanism. In addition to being able to be corrected, when fixing is performed by welding, there is no displacement, and high mounting accuracy can always be maintained. Further, by integrating the female screw portion with the pressing plate, the inconvenience of separately handling the bolt and the nut can be eliminated, and the working efficiency can be improved. Further, since the reinforcing ribs are formed around the holes penetrated through the L-shaped fitting, there are various advantages such as a reduction in strength due to the holes. Therefore, the present invention is a large one that contributes to a high rate of construction work as a girder metal fastener for a building that solves the conventional problems.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a preferred embodiment of the present invention.

FIG. 2 is a plan view showing a mounting process according to a preferred embodiment of the present invention.

FIG. 3 is a plan view showing an attached state according to a preferred embodiment of the present invention.

FIG. 4 is a front view showing an attached state according to a preferred embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 L-shaped bracket 1a Base piece 1b Vertical piece 1c Pressing plate 2 Mounting hole 3 Gap 4 Front and rear width 5 Left and right width 6 Pressing mechanism 7 Female screw part 8 Bolt insertion hole 9 Bolt 10 Shaped steel beam 10a Lip 10b Lip opening 10c Groove 11 Reinforcing rib

Claims (3)

[Claims] A vertical hole (1b) bent and raised from a base piece (1a) of an L-shaped bracket (1) is provided with a mounting hole (2) for mounting a girder and a lower surface of the base piece (1a). The pressing plate (1c) is bent and formed with a gap (3) in which the lip (10a) of the mold steel beam (10) can be interposed, and the front-rear width (4) of the pressing plate (1c) is grooved from the lip opening (10b). (10c)
And the width (5) of the pressing plate (1c) should be large enough to engage the left and right lips (10a) of the steel beam (10), and the pressing plate (1c) should be A girder metal fastener for a building, comprising a pressing mechanism (6) for pressing toward 1a). 2. The pressing mechanism (6) is a female screw part of a pressing plate (1c).
(7) through the bolt insertion hole (8) of the base piece (1a).
The girder metal fastener for a building according to claim 1, comprising a bolt (9) screwed into the (7). 3. The girder fastener for a building according to claim 1, wherein a reinforcing rib (11) is formed on a periphery of a hole provided in the L-shaped bracket (1).