JP2000179150A - Fastening structure for horizontal tie rod - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize the fastening structure for a horizontal tie rod, in which the horizontal tie rod is fixed onto a stud surely by simple works. SOLUTION: The fastening structure for the horizontal tie rod is composed of a box body 31 being installed at both ends of the horizontal tie rod 3 and having openings and member metal fittings 2 comprising a wedge 36 inserted into a slit formed to the box body 31 and a flange body 21 being mounted to the sleeve 23 fitted to a stud in the horizontal direction and having a wedge hole, the flange body 21 is engaged with the openings, and the wedge is driven into the wedge hole and the horizontal tie rod 3 is fixed onto the stud.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is mainly used in the field of civil engineering and construction, and is used for formwork support or temporary scaffolding for holding a formwork when concrete is poured into a horizontal portion such as a floor slab or a ceiling. The present invention relates to a fastening structure for a horizontal connecting member to be formed.

[0002]

2. Description of the Related Art When casting concrete on a horizontal part such as a floor slab of a bridge in the field of civil engineering or construction, a floor slab of a building, a ceiling, or the like, a frame-type mold is generally used as a form support for holding a form. Frame supports are used. As a temporary scaffold in the civil engineering and construction fields, a frame scaffold using a steel pipe building frame is used.

[0003] As an example, an embodiment of a heavy-load formwork supporter described in JP-A-9-184307 will be described with reference to FIG. FIG. 8 is a perspective view showing this heavy-load formwork support. Reference numeral 1 denotes a pillar, 2 denotes a metal fitting, 3 denotes a horizontal connecting member, 4 denotes a cross bracing, and 6 denotes a cloth frame. All members are galvanized in principle. A base jack is installed at the lowermost part of the pillar 1, and a cloth frame 6 is stretched between parallel horizontal connecting members 3.

FIG. 9 is a front view showing the horizontal tether 3, and FIG.
Is a plan view, and the horizontal connection member 3 is a steel pipe main body 30.
Are provided at both ends with eyelets 38 provided with circular pin holes 39. FIG. 11 is a front view showing the member mounting hardware 2. A lock pin 24 protruding in the radial direction of the short pipe is mounted on the surface of the short tubular sleeve. Stop plate 25 that can rotate freely
The stopper plate 25 is normally in a vertical position due to its own weight. FIG. 12 is a perspective view showing the vicinity of the member mounting hardware 2 to which the horizontal tie 3 is attached. The lock pin 24 passes through a pin hole 39 provided in the eye plate 38 of the horizontal tie 3, but a stop plate near the tip. The eyepiece 38 does not fall off because the 25 is in the vertical position and serves as a stopper.

[0005]

The fastening structure of the horizontal connecting member using the lock pin and the eye plate is widely used in general because of its low manufacturing cost. There is a problem that adjustment is difficult. SUMMARY OF THE INVENTION It is an object of the present invention to solve such a problem and to realize a fastening structure for a horizontal connecting member that can securely fix the horizontal connecting member with a simple operation.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a fastening structure for a horizontal connecting member for connecting a pair of steel pipe pillars in a horizontal direction, wherein the horizontal connecting member is attached to both ends of a main body of the horizontal connecting member. A box having a horizontal opening on its side and a slit longer than the slit width, which is inserted into a slit provided from the upper surface of this box to the main body and attached to the upper and lower portions, is prevented from falling off. A wedge and a member mounting hardware consisting of a flange body having a wedge hole horizontally attached to the pillar, the opening is engaged with the flange body, and the wedge is driven into the wedge hole. It is a fastening structure of horizontal connecting material
Preferably, a square hole is provided above the opening of the box body, and the wedge is placed in a horizontal position so that the tip can be locked in the square hole.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the fastening structure for a horizontal connecting member according to the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing a fastening structure of this embodiment, FIG. 2 is a vertical sectional view thereof, FIG.
Reference numeral 3 denotes a horizontal connecting material. Details of the fastening structure will be described later.

As shown in the perspective view of FIG. 4, the member mounting hardware 2 has a short cylindrical sleeve 23 fitted into the pillar 1.
A flange 21 is provided in a horizontal direction at one of the positions, and a wedge hole 22 is formed in the flange 21. In FIG. 6, the flange body 21 has a shape extending in four directions, and wedge holes 22 are provided in each of the four directions. However, depending on the connection situation, only one direction or only two directions may be used. The flange body 21 may be directly attached to the pillar 1 without the intervention of the sleeve 23.

FIG. 5 is a perspective view showing the vicinity of an end of the horizontal connecting member 3 of the present invention. The horizontal connecting member 3 of the present invention is different from the conventional one shown in FIGS. 9 and 10 in that the connecting portions at both ends have a special structure. That is, although the main body 30 made of a steel pipe is the same, a box body 31 having a horizontal opening 32 toward the outside at the end thereof as shown in FIG. Is attached. Further, a slit 35 is provided from the upper surface of the box 31 to the main body 30 side. Although not shown in FIG. 5, this slit
A wedge 36 shown in FIG. 6 in which protrusions 37 slightly longer than the width of the slit 35 are attached to two upper and lower portions is inserted into the hole 35.
One of the two protrusions 37 may be attached in advance, but at least the other is attached after inserting the wedge 36 into the slit 35. Slit wedge 36
If you insert it into 35 and provide two projections 37, the projections 37
Are disposed on both sides of the slit 35, so that the wedge 36 does not fall off the box 31. Note that the length of at least the portion below the protrusion 37 is the length of the flange body.
It is necessary to make the width smaller than the width of the wedge hole 21.

The wedge 36 has two inclined portions 36a and 36b at an intermediate portion and a tip portion (a lower end portion in a vertical position). FIG. 7 is a partial cross-sectional view showing a state of the end portion when the horizontal connecting member 3 is not used, that is, in a storage state or the like. The wedge 36 is placed in a horizontal posture with the front end portion facing outward, and the inclined portion 36b at the front end is inserted into the square hole 33 and lightly driven into the wedge 36, so that the wedge 36 is firmly fixed to the box body 31. At the time of use, if this tip portion is hit from the outside in reverse, it is released from the square hole 33.

Next, the usage of the horizontal connecting member 3 of the present invention will be described with reference to FIGS. The opening 32 of the box 31 of the horizontal tie 3 is engaged with the flange 21 of the member mounting hardware 2 fixed to the pillar 1, the wedge 36 is oriented vertically, and the tip is inserted into the wedge hole 22 of the flange 21. ,
If the upper end is lightly driven, the middle sloped portion 36a shown in FIG. 5 develops a wedge effect between the box body 31 and the wedge hole 22, and is horizontal to the box body 31 and the flange body 21, that is, the pillar 1. The joining material 3 is tightly bonded. Conversely, when releasing the fastening structure, the tip of the wedge 36 may be lightly tapped from below.

As described above, in the fastening structure of the present invention, the horizontal connecting member and the pillar are firmly fastened by the simple operation of driving the wedge, so that the effect is more reliable than the fastening by the lock pin. The workability and safety of assembling the bottom of the pillar are significantly improved.

[0013]

According to the present invention, the horizontal connecting member can be fixed securely with a simple operation, and there is an excellent effect that the operation is made more efficient and the safety is improved.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of a fastening structure for a horizontal tether according to the present invention.

FIG. 2 is a vertical sectional view of FIG.

FIG. 3 is a sectional view showing an AA section in FIG. 2;

FIG. 4 is a perspective view showing an embodiment of the member mounting hardware of the present invention.

FIG. 5 is a perspective view showing the vicinity of an end of the embodiment of the horizontal connecting member of the present invention.

FIG. 6 is a perspective view showing an embodiment of a wedge of the present invention.

FIG. 7 is a partial sectional view showing the vicinity of an end of the embodiment of the horizontal connecting member of the present invention.

FIG. 8 is a perspective view showing a conventional heavy-load formwork support.

FIG. 9 is a front view showing a conventional horizontal tether.

FIG. 10 is a plan view showing a conventional horizontal tether.

FIG. 11 is a front view showing a conventional member mounting hardware.

FIG. 12 is a perspective view showing the vicinity of a conventional member mounting hardware.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pedestal 2 Member mounting hardware 3 Horizontal connecting material 4 Cross bracing 6 Cloth frame 21 Flange body 22 Wedge hole 23 Sleeve 24 Lock pin 25 Stop plate 30 Main body 31 Box 32 Opening 33 Square hole 34 Slit plate 35 Slit 36 Wedge 36a, 36b Inclined part 37 Projection 38 Eye plate 39 Pin hole

Claims (2)

[Claims] 1. A fastening structure for a horizontal connecting member (3) for connecting a pair of steel pipe pillars (1) in a horizontal direction, wherein the horizontal connecting member (3) has two ends connected to both ends of a main body portion (30) of the horizontal connecting member (3). Box (31) mounted and having a horizontal opening (32) on the end side
Is inserted into a slit (35) provided from the upper surface of the box (31) to the body (30) side, and the slit (3
5) A wedge (36) for preventing projections from falling off by attaching projections (37) longer than the width to upper and lower two places, and a flange body (22) which is horizontally attached to the pedestal (1) and has a wedge hole (22). 21) and a component mounting hardware (2) comprising
The fastening structure for a horizontal connecting member, wherein the opening (32) is engaged with the flange body (21), and the wedge (36) is driven into the wedge hole (22). 2. A square hole (33) is provided above the opening (32) of the box body (31), the wedge (36) is in a horizontal position, and the tip thereof can be locked in the square hole (33). The fastening structure for a horizontal connecting member according to claim 1, wherein: