JPH0532596Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a construction clamp used in various construction works.

In construction work, when bonding two pieces of wood together using adhesive, there are times when it is necessary to hold the two pieces together until the adhesive is stable and the bond between the two parts is complete, or when a beam is temporarily placed between columns. In the case of constructing a building, a clamping device is used when it is necessary to clamp and temporarily secure columns and beams.

The structure of a conventional construction clamp is such that a main body A is formed by bending the tip of a bar-shaped main rod part 1 to form a receiving part 2, and a screw rod 4 connected to a handle 3 is screwed to the top part. It consists of a supporting arm B having a locking hole 5 that is inserted into the rod 1, and the main rod 1 is inserted into the locking hole 5 to hold the object C.
When the supporting arm body B is moved along the main rod part 1 so as to be held between the receiving part 2 and the tip of the screw rod 4, and the handle 3 is rotated so that the tip of the screw rod 4 comes into contact with the object C to be held. The support arm B is slightly inclined, and at the same time the locking hole 5
is also tilted, and its inner wall surface is strongly pressed against the main rod part 1, preventing movement of the supporting arm body B. By further rotating the handle 3, the object to be held C can be clamped. be.

The present invention is an improvement on the above-mentioned temporary fixing clamp to make it easier to remove. That is, the present clamping device for temporary fixing is provided with a blow receiving part 6 on the outer side of the proximal end of the support arm B, that is, on the outer side of the locking hole 5, and as shown in FIG. When clamped, the support arm B rotates slightly in the → direction about the locking hole 5, thereby preventing movement of the support arm B. Therefore, when the impact receiving part 6 is hit with a force in the direction, the support arm B becomes temporarily parallel and the locking between the locking hole part 5 and the main rod part 1 is released. , due to the clamping force and impact force, the support arm B moves slightly downward and the clamp loosens, and the support arm B
Since it can be moved along the main rod part 1, it can be easily removed.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a front view of the entire structure, and FIG. 2 is a perspective view of the main parts of the support arm. 1 is the main rod part, 2 is the receiving part, 3 is the handle, 4 is the screw rod, 5 is the locking hole part, 6 is the impact receiving part, A is the main body, B
is the supporting arm, and C is the object to be held.

Claims (1)

[Scope of utility model registration request] The main body is made by bending the tip of a rod-shaped main rod part to serve as a receiving part, and the screw rod connected to the handle is screwed into the tip part, and a locking hole part is formed at the base end to fit into the main rod part. What is claimed is: 1. A constructional clamp comprising a supporting arm having a support arm provided with a shock receiving part on the outer side of the proximal end of the supporting arm.