JP2587333Y2 - Work scaffold mountings - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixture for attaching a work scaffold to a steel column in a steel-frame or steel-frame reinforced concrete construction site.

[0002]

2. Description of the Related Art When welding or bolting work is performed by connecting steel columns or connecting steel columns and steel beams, a work machine such as a welding machine is installed or a work space for workers is secured. For this purpose, a scaffold is required, and as such a scaffold, for example, there is a scaffold attached to a steel column as disclosed in Japanese Utility Model Laid-Open No. 59-8442.

[0003] As a fixture for attaching this scaffold to a steel column, for example, the Japanese Utility Model Application No.
There is one shown in JP-A-63-24538, which will be described with reference to FIGS. First, the construction of the work scaffold will be described. A scaffold plate 2 is attached to the outer periphery of the steel frame column 1 so as to face each other, and a bridge plate 12 is bridged between the scaffold plates 2. The scaffold plate 2 is provided with upward insertion ridges 11 on the outer portion of the frame member 13 and has through holes 14 near the left and right ends and in the center.
Is drilled.

[0006] As shown in FIG. 6, an attachment for attaching the scaffold plate 2 to the steel column 1 is formed by mounting an angle member 17 so as to form a downward opening on an attachment substrate 16 fixed to the steel column 1 by bolts 15 a and nuts 15 b. A horizontal groove 19 having a downward opening into which the insertion ridge 11 of the scaffold plate 2 is inserted is formed by the angle member 17 as an upper support portion along the reinforcing bracket 18a.

[0005] The mounting substrate 16 is also provided with the angle material.
A short side of the unequal angle material is attached to the mounting board 16 below the lower side so as to face the mounting plate 17, and a long side is provided as a horizontal plate 20 so as to be supported by a support bracket 18b.
And a horizontal portion 21 as a lower support member for supporting the lower surface of the frame member 13 of the scaffold plate 2 for a required length, and the support of the scaffold plate 2 on the outer periphery of the steel column 1 by combining these horizontal groove portions 19 and the horizontal portion 21. Form a part.

A flange 22 is attached to the outside of the angle member 17, and a vertical through hole 23 is formed between the flange 22 and the horizontal plate 20. In the drawing, reference numeral 24 denotes a fixing rod to be inserted into the through hole 23, and a small hole is also formed on the upper surface of the angle member 17, and a nut is attached to the small hole to form a screw hole 25 and a stopper projecting inward therefrom. The screw 26 can be screwed.

[0007] In order to fix the scaffold to the steel column 1 with such a fixture, a bolt 15a is previously welded to the steel column 1, and a nut 15b is tightened to fix the mounting substrate 16 to the steel column 1. With respect to such a fixture, the frame 13 of the scaffold plate 2 is inclined at the end face as shown in FIG. 7 so that the insertion ridge 11 enters the horizontal groove 19 first, and then the whole is vertical. If it is built so as to stand up, a lower surface of the frame material 13 is entirely placed on the horizontal portion 21.

Accordingly, the scaffold plate 2 is supported such that the frame member 13 is vertically sandwiched between the angle member 17 and the horizontal plate 20. Then, the through hole 14 of the frame member 13 and the through hole 23 of the fixture are aligned, the rod 24 is inserted into the through holes 14 and 23, and the lower end is screwed into the through hole 23. It is fixed to the fixture. Further, if necessary, a set screw 26 is screwed into the screw hole 25 to hold the head of the insertion ridge 11 to prevent rattling.

[0009]

As described above, in the conventional mounting device, a bolt is previously welded to a steel column, and a nut is screwed into the bolt to fix the mounting substrate to the steel column. In addition to increasing the number of members for mounting, the mounting operation also required two operations of welding and bolting, and the workability was not good. Also, after removing the scaffold,
Although there is no problem even if a is not removed, the mounting fixture has to be removed by loosening a nut or the like because of its protruding length.

The object of the present invention is to solve the above-mentioned disadvantages of the prior art, to reduce the number of members, to simply fix it to a steel column by welding only, to easily remove it after use, and to improve workability. It is an object of the present invention to provide an attachment for a work scaffold that can achieve the above.

[0011]

According to the present invention, in order to achieve the above-mentioned object, a pair of plate-like vertical elongated members whose back surfaces are welded to a steel column are protruded upward and downward from the side opposite to the welding side. A part is provided, and an angle material serving as a support member of the scaffold is horizontally erected so that an opening is formed downward in the upper protruding part,
A horizontal support plate is provided on the lower protruding portion, and the angle member and the horizontal support plate are formed so as to be removable by fusing the bases of the upper and lower protruding portions. It is intended to be formed by molding.

[0012]

According to the present invention, by simply welding the backs of a pair of plate-shaped elongated members to the steel column, the angle member integrated with the elongated member and the horizontal support plate project from the column. The scaffold is fixed to the steel pillar by locking the frame material of the scaffold up and down with these angle members and the horizontal support plate. After use, if the upper and lower protrusions of the vertically elongated member welded to the steel column are blown off at its base, the angle material and the horizontal support plate integrated with the upper and lower protrusions can be removed, and the mounting fixture can be replaced with the steel column. Can be easily removed from

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view showing a working scaffold according to an embodiment of the present invention, and FIG. 2 is a perspective view showing the working scaffold attached to the working scaffold. Are the same as those already described for the conventional example of FIG. 5, and therefore, are denoted by the same reference numerals and detailed description thereof will be omitted.

As shown in FIG. 1, the attachment of the work scaffold according to the present invention has an L-shape on the upper side of a pair of plate-like vertically elongated members 3 whose back surfaces are welded to the steel column 1, opposite to the welding side. Are formed, and the scaffold plate 2 is provided between the upper protrusions 3a.
The angle member 4 serving as a support member is erected by welding so that its opening faces downward and rearward.

A lower projecting portion 3b having a horizontal supporting portion is formed on the lower portion of the vertically elongated member 3 on the side opposite to the side to be welded, and a horizontal supporting plate 5 is also installed between the projecting portions 3b by welding. did. The vertically elongated member 3 can be easily formed by pressing a metal plate.

A projecting piece 6 is projected from the center of the angle member 4 toward the front by welding, and a hole 7 and a screw hole 8 are formed at positions opposing the projecting piece 6 and the horizontal support plate 5. Keep it. In the drawing, reference numeral 9 denotes a fixing rod inserted into the hole 7 and the screw hole 8. The upper protruding portion 3a is preferably formed in an L-shape as in this example, since an opening having a required dimension can be easily formed, but the lower surface may be a horizontal protruding portion.

Next, the method of use will be described.
Is fixed to the steel column 1 by welding the back surface of the vertically elongated member 3 to the outer surface of the steel column 1. Then, as shown in FIG. 3, the frame member 13 of the scaffold plate 2 is slanted so that the insertion ridge 11 enters the opening of the angle member 4 first, and then the whole is vertical so that a shoji is formed. If it is erected, the lower surface of the frame material 13 rests on the horizontal support plate 5.

As a result, the scaffold plate 2 is provided with the frame members 13 on its side.
Are supported vertically so as to be sandwiched between the angle member 4 of the fixture and the horizontal support plate 5. Therefore, as long as the scaffold plate 2 is locked to the fixture in a vertical state, there is no danger that the scaffold plate 2 will come off the fixture, but as shown in FIG.
13 and the screw holes 8 of the horizontal support plate 5 are aligned with each other, a fixing rod 9 is inserted into these holes 7, the through holes 14 and the screw holes 8, and the ends are screwed into the screw holes 8. If this is the case, the scaffold plate 2 is fixed to the fixture.

After the work is completed and the scaffold 2 is removed,
When the base fixed to the upper and lower protrusions 3a and 3b of the vertically elongated member 3 is blown off, the mounting member fixed to the steel column 1 removes the angle member 4 and the horizontal support plate 5 integrated therewith from the steel column 1. .

The portion remaining on the steel column 1 has a small degree of protrusion and does not become a hindrance as it is, and can be buried in the steel column 1 when a fire-resistant coating is applied to the column.

[0021]

[Effects of the Invention] As described above, the mounting fixture of the work scaffold of the present invention can reduce the number of members, can be simply fixed to the steel column by welding, and can be removed from the steel column vertically. The simple work of cutting only the base part of the projection part of the work can be performed, and the workability can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a working scaffold mounting tool according to an embodiment of the present invention.

FIG. 2 is a perspective view of the work scaffold attached to the work scaffold according to the present invention.

FIG. 3 is a longitudinal sectional side view of the use state of the mounting tool of the present invention.

FIG. 4 is a vertical sectional side view of a fixing portion of the mounting device of the present invention using a rod in a used state.

FIG. 5 is a perspective view showing a state in which a work platform is attached by a conventional attachment.

FIG. 6 is an exploded perspective view of a conventional attachment.

FIG. 7 is a longitudinal sectional side view of a conventional mounting tool in use.

FIG. 8 is a longitudinal sectional side view of a fixing portion by a rod in a used state of a conventional mounting tool.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Steel pillar 2 ... Scaffold board 3 ... Vertically elongated member 3a ... Projection part 3b ... Projection part 4 ... Angle material 5 ... Horizontal support plate 6 ... Projection piece 7 ... Hole 8 ... Screw hole 9 ... Fixing rod 11 ... Insertion Protrusions 12 ... Transfer plate 13 ... Frame material 14 ... Hole 15a ... Bolt 15b ... Nut 16 ... Mounting board 17 ... Angle material 18a ... Reinforcement bracket 18b ... Support bracket 19 ... Horizontal groove part 20 ... Horizontal plate 21 ... Horizontal part 22 ... Flange 23 ... Through hole 24 ... Fixing rod 25 ... Screw hole 26 ... Set screw

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 1-129433 (JP, U) JP-A 52-17944 (JP, Y2) (58) Fields investigated (Int. Cl. ⁶ , DB name) E04G 3/02-3/08 E04G 5/04-5/06

Claims (2)

(57) [Scope of request for utility model registration] 1. A pair of plate-like vertically elongated members, the backs of which are welded to a steel column, are provided with upper and lower protruding portions toward the side opposite to the welding side, and the upper protruding portion has a downward opening. An angle member serving as a support member of the scaffold is erected horizontally, and a horizontal support plate is provided at a lower protruding portion, and the angle member and the horizontal support plate are removed by fusing a base of the upper and lower protruding portions. An attachment for a work scaffold characterized by being formed as possible. 2. The work scaffold attachment according to claim 1, wherein the vertically elongated member is formed by press molding.