JP2504631Y2 - Thin-wall precast concrete beam member suspension - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspender for suspending thin precast concrete beam members.

[0002]

2. Description of the Related Art A thin precast concrete beam member has a U-shaped cross section and its upper part (opening) is weak against horizontal external force in the width direction. Therefore, in order to suspend it, a hook is embedded in concrete on both sides of the opening. , The wires are hung in parallel in the vertical direction by hooking the two corresponding hooks on both edges, and at the same time, the two parts in the length direction of the beam member are also hung while maintaining stability in the length direction of the beam member. Is normal. For this reason, not only is it necessary to embed the hook in concrete, but also the hanger is complicated.

In order to solve this problem, a suspending tool which can be directly attached to a stalap by utilizing a stalap having a protruding beam member was devised. (Practical application 5-1254)

[0004]

[Problems to be Solved by the Invention] In the previous invention, since the manufacturing and handling of the metal piece to be used have not been sufficiently simplified, a study was made on a lifting tool that is easier to manufacture and handle, and the present invention was reached. .

[0005]

SUMMARY OF THE INVENTION The present invention has (A) two diagonal members having a pin insertion hole at one end and a plurality of bolt holes at the other end, and (B) one bolt hole at one end. , A horizontal member having a plurality of bolt holes at the other end, and (C) two vertical members in which a cylindrical body is provided upright on the lower surface, and an oblique member is rotatably bolted to the upper portion of the vertical member. A slender for a thin-walled precast concrete beam member, in which both ends of a horizontal member are rotatably bolted to a central portion of a vertical member, the slant member having a plurality of bolt holes, and the horizontal member having a plurality of bolt holes The lifting device is composed of only three vertical members provided with a cylindrical body standing upright and can be connected by a simple operation of rotatably connecting them with bolts.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.

FIG. 1 is an elevation view in which the lifting device of the present invention is mounted on a protruding strap of a thin precast concrete beam member.

The hanging device of the present invention comprises two slant members 1, 1, one horizontal member 2, and two vertical members 3, 3. A pin insertion hole 4 is drilled at one end of the diagonal member 1, and three bolt holes 5, 5, 5 are drilled at the other end. One bolt hole is bored at one end of the lateral member 2, and three bolt holes 7, 7, 7 are bored at the other end. A cylindrical body 10 is provided upright on the lower portion of the vertical member 3. The diagonal member 1 and the upper portion of the vertical member 3 are provided with three bolt holes 5, 5, 5 on the diagonal member 1 side.
The bolt hole 5 in the middle of the column and the bolt hole on the side of the vertical member 3 are rotatably connected by a bolt 6. The horizontal member 2 and the central portion of the vertical member 3 rotatably connect a bolt hole at one end of the horizontal member 2 and a bolt hole at the vertical member 3 side with three bolt holes 7, 7, at the other end, Bolt hole 7 and vertical member 3 in the middle of 7
The bolt hole on the side is rotatably connected with a bolt 8. When lifting, the shackle pins are inserted into the pin insertion holes 4 and 4 at one end of the diagonal members 1 and 1, and the two diagonal members 1 are rotatably connected. Then, the cylindrical body 10 below the vertical member 3
Is inserted into the staplap 12 obliquely from below. When the hoisting is started and a force is applied to the hoisting device, a force that narrows inward is applied to the diagonal members 1 and 1, and the force is transmitted to the vertical members 3 and 3, and the lower portions of the vertical members 3 and 3 are expanded outward. The side surfaces of the cylindrical bodies 10 and 10 are brought into close contact with the bent portions of the stapling 12, and the thin-walled precast concrete beam member 11 is reliably supported by the hanger.

As the slanting member 1, a narrow steel plate is usually used. Since it is preferable that the vertical planes of the two vertical members 3 and 3 connected to the diagonal members 1 and 1 are in the same plane, it is preferable that the diagonal member 1 has a bending step at the center as shown in FIG. preferable.

As the lateral member 2, a narrow steel plate is usually used. Plural bolt holes are bored in the diagonal member 1 and the transverse member 2 so that they can be used for any of several thin precast concrete beam members having different stap widths, and the widest stap width. In the case, the outermost bolt holes are connected, and in the case where the stapling width is the narrowest, the innermost bolt holes are connected. Therefore, the number of bolt holes can be appropriately increased or decreased depending on the number of types of assumed lap widths.

As the vertical member 3, L-shaped steel or steel plate is used in addition to the grooved steel shown in the drawing. Since it is highly likely that a twisting force acts on the vertical member 3 during lifting, it is preferable to use a shaped steel. A round steel piece or a steel pipe piece is used as the cylindrical body 10, and it is preferable that the curvature thereof matches the curvature of the bent portion of the stalap 12. The connection of the cylindrical body 10 to the vertical member 3 is performed by welding or bolt connection according to a conventional method.
It is preferable to connect the tip so that the tip thereof is slightly upward. Further, a protrusion may be provided at the tip of the cylindrical body 10 in order to prevent the slap 12 from slipping off.

In the thin precast concrete beam member, one lifting tool of the present invention is attached to each of the two protruding stabs in the length direction, and the hanging members are lifted by a wire through shackles.

[0013]

EFFECTS OF THE INVENTION By providing a plurality of bolt holes in the diagonal member and the lateral member, it is possible to easily adapt to the width type of the thin-walled precast concrete beam member by changing the connecting position thereof, and to automatically adjust the cylindrical body automatically. The widening action makes it easy to follow the change in the stapling width, so that the cylindrical body is always brought into close contact with the bent stapling portion.

[Brief description of drawings]

FIG. 1 is an elevation view in which the lifting device of the present invention is attached to a protruding strap of a thin precast concrete beam member.

FIG. 2 is a perspective view of an example of a diagonal member.

[Explanation of symbols]

1 ・ ・ Slanting member 2 ・ ・ Horizontal member 3 ・ ・ Vertical member 4 ・ ・ Shackle pin insertion hole 5 ・ ・ Slanting member bolt hole 6 ・ ・
Connection bolts for diagonal members and vertical members, 7 ... Horizontal member bolt holes, 8 ... Connection bolts for horizontal members and vertical members, 9 ... Connection bolts for horizontal members and vertical members, 10 ... Cylindrical body, 11 ...
Thin precast concrete beam members, 12 ...

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Hiromi Fukuda 6-3-2 Toyo, Koto-ku, Tokyo Kashima Construction Co., Ltd. Kanto Branch (72) Inventor Ken Kitamura 1-2-7 Moto-Akasaka, Minato-ku, Tokyo No. Kashima Construction Co., Ltd. (72) Shinichi Nawata 1108 Yokokura, Oyama City, Tochigi Prefecture

Claims (1)

(57) [Scope of utility model registration request] 1. A diagonal member having (A) a pin insertion hole at one end and a plurality of bolt holes at the other end, and (B) one bolt hole at one end and a plurality of bolt holes at the other end. And (C) two vertical members with a cylindrical body standing upright on the lower surface of the horizontal member. An oblique member is rotatably bolted to the upper part of the vertical member, and both ends of the horizontal member are vertically connected. A suspender for thin-walled precast concrete beam members, which is rotatably bolted to the center of the member.