JPH0327169Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention can be used at construction sites, material storage areas, etc.
This invention relates to a fastener for a temporary construction fence, which is intended to efficiently and reliably install a temporary fence used for safe work to a support frame.

Conventionally, in order to attach a temporary shroud to a support frame, as described in Japanese Utility Model Publication No. 52-3313, a metal piece is attached to the concave part of the temporary shroud by welding, and the gap between the metal piece and the concave part is There is a method in which one end of wire is inserted into the temporary shroud and the temporary shroud is fixed via a support frame.

This requires much labor during installation, has poor workability, and is economically disadvantageous.

In addition, it is not reliable and cannot be welded in the rain, so there is a large amount of invisible mechanical loss.
It takes time and effort to remove one piece, which is unreasonable and inefficient.

In addition, as another conventional construction method,
As described in Publication No. 22010, overlap the mounting holes of the hook metal fittings and the mounting holes of the temporary shroud, insert bolts from one of the mounting holes, and tighten with nuts to fix the temporary shroud and the support frame. There is something.

This requires a plurality of workers to work inside and outside the temporary shroud, which requires a lot of labor and is uneconomical.

This invention was made in view of the above-mentioned drawbacks and in order to eliminate them.Next, its structure will be explained with reference to the drawings of each embodiment.

FIG. 1 is a front view showing the first embodiment, in which a continuous steel bar body 1 is provided with a downward hook-shaped locking piece 2 at its base end and a curved hook at its tip. Each piece 3 is provided, and a male threaded tightening shaft 5 is formed near the joint 4 between the hook piece 3 and the hook-shaped locking piece 2.

Reference numeral 6 denotes a tightening nut screwed onto the male threaded tightening shaft 5 of the main body 1, and together with the male threaded tightening shaft 5, constitutes a tightening portion 7.

An example of the use of the fastener according to the first embodiment configured as described above will be described below.

As shown in FIG. 2, a support pipe P1 is driven in advance around a site such as a construction site or a material storage yard, and several stages of horizontal pipes P2 are attached to it to assemble a support frame P.

At this time, the hook pieces 3 are attached downward to the upper horizontal pipe P2 and the middle horizontal pipe, and the hook pieces 3 are attached upward to the lower horizontal pipe.

When attaching to the upper horizontal pipe, make a through hole a in the temporary shroud A in advance, insert the locking piece 2 from the through hole a from the inside of the temporary shroud A, and the locking piece 2 will attach to the temporary shroud A. After confirming that it has protruded from the outside, set the hook piece 3 by hooking it from above the horizontal pipe P2, and then tightening the tightening nut 6 to pull the temporary shroud plate A with the inner surface of the locking piece 2. Can be mounted close together.

After setting the fasteners in this way, the temporary shroud A is erected.

Next, the middle horizontal pipe and the lower horizontal pipe may be attached in the same manner as described above, but especially for the lower horizontal pipe, the locking piece 2 should be hooked from below the horizontal pipe. This can prevent the temporary shroud from floating up.

In this way, the temporary shroud A and the support frame P can be assembled by one person from inside the temporary shroud A, eliminating the need for outside workers and allowing efficient and safe work.

Furthermore, it can be constructed with less labor and the construction period can be shortened.

Next, to explain another embodiment according to this invention, FIG. 3 is a front view of the second embodiment in a state of use, in which the main body 21 has the locking piece 22 and the hook piece 23 centered on the joint part 24. Since the locking pieces 22 can be easily inserted into the through holes a of the temporary shrouding plate A from above the horizontal pipe P2, the workability is good.

Incidentally, it is easily possible that the locking piece 22 is bent at any angle within 360° with the joint portion 24 as the center.

FIG. 4 is a front view of the third embodiment in use, and by providing an upwardly facing knob 3a at the tip, attachment and detachment can be made simple and easy.

FIG. 5 is a front view of the fourth embodiment in use, in which a wedge 7 is driven from above the joint 4 of the main body formed in the gap between the temporary shroud A and the horizontal pipe P2, and across it. can be fixed easily and reliably.

FIG. 6 is a partially cutaway front view of the fifth embodiment in use, with a wedge hole 54 in the joint 54 of the main body 51.
A is provided, a wedge plate 57 is driven into the wedge plate 57, and the temporary shroud plate A is pressed against the locking piece 52 and tightened, so that it can be fixed easily and reliably in the same manner as described above.

As mentioned above, according to the fastener of this invention,
Due to the simple structure, the temporary shroud can be easily installed from the inside, and has the effect of ensuring reliable construction.

In addition, the holes provided in the temporary shroud are simple circular, making it easy to process on-site, which has great practical benefits.

[Brief explanation of the drawing]

Fig. 1 is a front view showing the first embodiment of the fastener of this invention, Fig. 2 is a front view showing the first embodiment in use, and Fig. 3 is a front view showing the second embodiment in use. FIG. 4 is a front view of the third embodiment in use, FIG. 5 is a front view of the fourth embodiment in use, and FIG. 6 is a partial cutaway of the fifth embodiment in use. It is a front view. 1... Main body, 2... Locking piece, 3... Hook piece,
4... Joint part, 6... Tightening nut, 7... Tightening part, A... Temporary shroud, P... Support frame.

Claims (1)

[Scope of utility model registration request] A hook-shaped locking piece is provided at the base end of one continuous steel bar body, a curved hook piece is provided at the tip, and a tightening part is provided near the joint between the hook piece and the locking piece. Fasteners for temporary construction fencing boards made up of: