JPH0637161Y2 - Clamp for temporary construction materials - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a clamp for a temporary material such as a pillar or a flap used at a construction site.

<Prior Art> This type of clamp metal fitting has already been proposed by the applicant as No. 58-111755, which is shown in FIGS. It can be replaced with a new one, and since the bolt 6 and the bolt support piece 11 are bent, the nut receiving surface 3 of the tightening piece 4 and the nut bottom surface are in good contact with each other, and the stability at the time of tightening is increased. Even if the tightening piece 4 is deformed to some extent, it has the effect of being able to prevent the supporting force from decreasing due to the stable tightening of the nut 8. However, as shown in FIG. The threaded portion of 6 projects from the nut 8, and the projected portion of the threaded portion of the bolt 6 contacts various obstacles after hugging and connecting the pipe support and damages the threaded portion.
As a result, there was a problem that the bolts had to be replaced often.

<Problems to be solved by the invention> In the conventional clamp metal fittings as described above, when the pipe is held, the threaded portion of the bolt projects outward from the metal fittings, so that it may come into contact with various obstacles, The screw part is damaged and the extra work of replacing the bolt is required.

<Means for Solving Problems> The present invention has been made in order to solve the above problems, and a fastening piece is rotatably fixed to one end of a receiving member having an appropriate width. The bolt receiving recess and the bolt head receiving surface are provided at the tip of the tightening piece, and the other end of the bolt is loosely inserted into the bolt insertion hole of the bolt supporting piece that is rotatably supported at the other end of the receiving member. However, the clamp is a clamp in which a nut is screwed into the bolt support piece so as not to rotate.

Therefore, even when the pipe is held, only the head of the bolt projects from the nut receiving surface of the tightening piece, and the amount of projection is extremely small, while the other end of the bolt projects in the bolt supporting piece, Even after the columns are held and joined together, the threaded portion of the bolt does not come into contact with an obstacle or damage the threaded portion, and the extra work of replacing the bolt is eliminated.

<Embodiment> Next, an embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a sectional view of the clamp of this invention. Although FIG. 3 is a plan view of a conventional clamp, the same parts as those will be described with the same reference numerals.

In FIG. 1, at one end of the receiving member 1 having an appropriate width,
Recessed portion 2 which holds fastening piece 4 so as to be rotatable, and which receives the lower end of head 13 of bolt 6 at the tip of fastening piece 4 (Fig. 3).
The head 13 of the bolt 6 has a receiving surface 3 and a protrusion 10 for preventing the head 13 from slipping off at the tip of the receiving surface 3.

At the other end of the receiving member 1, a bolt support piece 11 having a bolt insertion hole 12 is rotatably supported by a shaft 7, and the bolt insertion hole 12 is formed.
The other end of the bolt 6 is loosely fitted and inserted into the bolt 6, and the nut 8 is screwed into the bolt support piece so as not to rotate.

Incidentally, 9 is a bolt hole for connecting the clamps to each other vertically and horizontally.

<Effects of the Invention> With the above-mentioned configuration, the present invention is in a state in which the tip of the bolt 6 and the nut 13 which are most severely worn and worn are housed in the bolt support piece 11, and only the head 13 of the bolt. Only protrudes from the nut receiving surface 3 of the tightening piece 4, and the protruding amount is extremely small, and even after the pipe strut is hug-coupled, the threaded portion of the bolt 6 is in contact with an obstacle or damages the threaded portion. It has the effect of eliminating the extra work of replacing bolts.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of the clamp of the present invention, FIG. 2 is a vertical sectional view of a conventional clamp, and FIG. 3 is a plan view of the conventional clamp. 6 ... Bolt, 8 ... Nut 11 ... Bolt support piece, 13 ... Bolt head

Claims (1)

[Scope of utility model registration request] 1. A receiving member having an appropriate width, wherein a fastening piece is rotatably supported on one end of the receiving member, and a receiving portion for receiving a bolt and a receiving surface of a bolt head are provided at the tip of the fastening piece, and the receiving surface has a bolt. The head is placed, and a bolt support piece is rotatably supported at the other end of the receiving member, and a bolt insertion hole is provided in this bolt support piece so that the other end of the bolt is loosely fitted and protruded. A clamp for temporary construction material in which the nut is screwed onto the bolt so that it cannot rotate within the bolt support piece.