JPH06143153A - Clamp - Google Patents

Abstract

PURPOSE:To provide a clamp which is designed to simplify fixing of two members and prevent from a drop owing to a repeated load. CONSTITUTION:A clamp comprises a clamp body 1 the whole of which is formed approximately in a C-shape as seen from a side; a wedge piece 2 inserted between the clamp body 1 and a members (h) and (p) to be nipped; and a fixing bolt 3 through screw-in of which the clamp body and the wedge piece are attached together. The clamp body 1 has first and second nipping surfaces 1A and 1B to press the two end faces of the member to be nipped between the insides of the two end parts. A distance between the two nipping surfaces 1A and 1B is increased to a value higher than the thickness of the whole of the member intended to be nipped, and one nipping surface 1B forms a slope. Further, a female screw hole 1C is formed in the insertion direction of the wedge piece in the vicinity of the nipping surface. The wedge piece 2 has a slope corresponding to the slope of the nipping surface 1B of the clamp body 1, and a through-hole in which the tip of the fixing bolt is inserted is formed in the flange part 2C formed at a base end.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clamp (fixing tool) useful for mounting and fixing a member such as a square bar on a base material such as an H-shaped steel in a structure such as a multistory parking lot.

[0002]

2. Description of the Related Art In structures such as multistory parking lots,
A square pipe for supporting a floor plate is horizontally provided on an H-shaped steel as a main frame (base material), and a floor plate serving as a traveling surface is arranged above the square pipe.

If the construction period for making an already used parking lot a three-dimensional parking lot is extremely short, the H-shaped steel and the square pipe, which are the members to be clamped, are fastened or post-treated (rust prevention treatment). Etc.) It was pinched and fixed by a shackle-type vise 10 as shown in FIG.

[0004]

However, when the shackle-type vise 10 as shown in FIG. 10 is used for sandwiching, a repeated load acts on each of the sandwiched members as in a multistory parking lot. Then, when the clamped member is distorted intermittently, it loosens each time due to the fact that the pressure receiving area of the end face of the vise that applies the clamping force between the clamped members is small. Occurs, and the position of the sandwiched portion gradually moves.

Therefore, in a place where a vehicle is frequently driven and a load is repeatedly applied, such as a multi-storey car park, the shackle-type vise may drop out after a predetermined period.

The present invention has been made in view of such a situation, and in a place where two members (members to be clamped) can be easily fixed and a repeated load which causes bending is generated. It is intended to provide a clamp that does not fall off even when used.

[0007]

A clamp according to the present invention is a clamp for sandwiching and fixing the members to be sandwiched from opposite sides, and the clamp is generally C-shaped in a side view. The clamp body includes a clamp body, a wedge piece that is inserted between the clamp body and a member to be clamped when clamping and fixing, and a fixing bolt that screws the clamp body and the wedge piece together. Has a first and a second clamping surface that presses both end surfaces of a member to be clamped, which is to be clamped, inside the opposite ends of the clamp body that are roughly C-shaped. The dimension between the surfaces is configured to be larger than the total thickness of the members to be clamped,
In addition, the one clamping surface is formed of an inclined surface, and a screw hole is formed in the vicinity of the clamping surface in the wedge piece insertion direction, and the wedge piece is an inclined surface of the clamping surface of the clamp body. And a through hole for inserting the tip of the fixing bolt, which corresponds to the female screw hole on the side of the clamp body, in the flange formed at the base end.

[0008]

According to the clamp of the present invention,
The clamped members to be clamped are overlapped with each other, and the substantially C-shaped clamp body is placed in the overlapping portion so that the clamped member is located between the opposing first and second clamping surfaces. And a wedge piece is inserted on the side of the sandwiching surface having an inclined surface so as to form a space between the sandwiched member and the wedge piece so that the inclined surface on the wedge piece side abuts the inclined surface. If the bolt is inserted through the through hole of the wedge piece so that it will be screwed into the female screw hole of the clamp body and screwed to the extent that the bolt expands, the clamped member is firmly clamped by the wedge action. Will be.

In this clamp, since the clamped member is clamped between the first clamping surface and the second clamping surface via the wedge piece, a sufficient pressure receiving area should be secured as necessary. It is possible to prevent the loosening of the sandwich by repeated loading.

Further, even if the clamped member repeatedly bends and a gap is generated between the clamped member and the clamp, the tensile force as the internal stress acting on the bolt causes the wedge piece to move. It acts on the side that is pushed between the clamp body and the clamped member, and the wedge piece always maintains a state of being firmly inserted into the space between the clamped member and the clamp body, and the clamp does not loosen. Absent.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A clamp according to the present invention will be specifically described below based on embodiments with reference to the drawings.

FIG. 1 is a side view showing the structure of the clamp body of the present clamp, FIG. 2 is the same front view, FIG. 3 is the same rear view, FIG. 4 is the same bottom view, and FIG. 5 is the wedge piece structure of the present clamp. FIG. 6 is a side view shown in FIG.

As shown in FIG. 1, this clamp body 1
Is generally C-shaped when viewed from the side, and a first holding surface 1A and a second holding surface 1B are provided so as to face each other inside both ends of the C-shape. The first holding surface 1A is a flat surface along one end surface (side surface) of the member to be held, and the second holding surface 1B is a wedge piece described later as shown in FIGS. It is composed of an inclined surface along the inclined surface of 2. In this embodiment, the wedge piece 2 (see FIGS. 5 and 6) inserted into the space between the second holding surface 1B and the member to be held can be positioned and the position after the holding is performed. The second holding surface 1B is an inclined surface having two different heights with the same inclination angle such that a groove portion is formed in the center so that no deviation occurs.
It is composed of 1a and 1b.

A screw hole 1C (in this embodiment, a horizontal direction that does not tilt in this embodiment) is formed at a position adjacent to and below the second holding surface 1B in the insertion direction of the wedge piece 2 (see FIGS. 5 and 6). Female screw hole 1C) is provided.

Further, the dimension between the first holding surface 1A and the second holding surface 1B is dimensionally larger than the thickness of the whole holding member to be held, that is, the second holding surface 1B and the holding surface 1B. The dimensions are such that a space for inserting the wedge piece 2 is formed between the member and the member.

Further, in this embodiment, as shown in FIGS. 1 and 4, the first holding surface 1A is connected to the square pipe p (FIG. 7,
A locking portion 1E bent downward at the tip end for locking (see FIG. 8) is provided in a protruding manner.

As shown in FIGS. 5 and 6, the wedge piece 2 is used.
An inclined surface having a shape (see FIG. 6) corresponding to the second sandwiching surface 1B (see FIG. 1) is formed on the lower surface 2A of the portion into which is inserted, and the upper surface 2B that abuts the member to be sandwiched is a flat surface. It is composed of. Then, at the base end of the wedge piece 2, a direction (downward direction in FIG. 5) orthogonal to the inserted portion.
A flange portion 2C that overhangs is formed in the flange portion 2C, and a hole cross section for inserting a fixing bolt 3 (see FIG. 8) described later corresponding to the screw hole 1C formed in the clamp body 1 is formed in the flange portion 2C. An elliptical through hole 2D is formed.

Therefore, the main clamp having the above-described structure operates as follows when the member to be clamped is clamped / fixed.

That is, as shown in FIGS. 7 and 8, the square pipes p are arranged so as to overlap above the H-shaped steel h which is one of the members to be sandwiched, and the overlapping portions are covered with the first pipe. The clamp main body 1 is positioned so that the first and second clamping surfaces 1A and 1B face each other.

Then, in this state, when the first holding surface 1A is brought into contact with the upper surface of the square pipe p, a space is formed between the bottom surface of the upper flange portion of the H-shaped steel h and the second holding surface 1B. Is formed, and the wedge piece 2 is inserted into this space along the second holding surface 1B.

Then, when the wedge piece 2 is inserted into the space, as shown in FIGS. 8 and 9, from the back side (base end side; left side in FIG. 5) of the flange portion 2C of the wedge piece 2, The fixing bolt 3 is inserted into the through hole 2D of the wedge piece 2, and the tip of the fixing bolt 3 is screwed into the female screw hole 1C (see FIG. 7) of the clamp body 2.

At this time, the fixing bolt 3 is screwed to the extent that a tensile force is generated as an internal stress.

As a result, the clamped square pipe p and H-shaped steel h are clamped to the main clamp with a necessary and sufficient pressure receiving area even if the stress from above the square pipe p acts in the form of repeated load. Since the members are in contact with each other, the tension force acting on the fixing bolt 3 causes the wedge piece 2 to be fitted into the space when trying to loosen it. There is nothing to do.

[0024]

According to the clamp of the present invention, as described above, the first and second clamping surfaces, etc., which contribute to the clamping of the clamped member, can be made large in size, and Since the clamp body and the wedge piece are fixed by the fixing bolts as described above, the clamp will not loosen or fall off even if it is used in a place where a load is repeatedly applied to the clamped member.

[Brief description of drawings]

FIG. 1 is a side view showing a configuration of a clamp body of a clamp according to an embodiment of the present invention.

FIG. 2 is a front view of the clamp body shown in FIG.

FIG. 3 is a rear view of the clamp body shown in FIG.

FIG. 4 is a bottom view of the clamp body shown in FIG.

FIG. 5 is a side view showing a configuration of a wedge piece of the present clamp.

FIG. 6 is a view as seen in the direction of arrows I-I in FIG.

FIG. 7 is a side view (right side view) showing a usage mode of the present clamp.

FIG. 8 is a side view (left side view) showing a usage state of the present clamp.

FIG. 9 is a front view showing how the clamp is used.

FIG. 10 is a side view of a clamp used in a member to be clamped, showing a configuration of a conventional clamp.

[Explanation of symbols]

 1 ... Clamp body 1A ... 1st clamping surface 1B ... 2nd clamping surface 1C ... Female screw hole 2 ... Wedge piece 2C ... Collar part 2D ... Through hole 3 ... Fixing bolt

Claims (1)

[Claims] 1. A clamp for sandwiching and fixing the members to be sandwiched from both sides facing each other, wherein the clamp is a C-shaped clamp main body as a whole in a side view, A wedge piece inserted between the clamp body and the member to be clamped, and a fixing bolt for screwing the clamp body and the wedge piece together. The clamp body has a substantially C-shaped configuration. Inside the opposite end portions, there are first and second clamping surfaces that press both end surfaces of the member to be clamped, which is to be clamped, and the dimension between the two clamping surfaces is to be clamped. It is configured to be thicker than the entire thickness of the member to be clamped, and the one clamping surface is an inclined surface, and a screw hole is provided in the vicinity of the clamping surface in the wedge piece insertion direction, The wedge piece is inclined by the clamping surface of the clamp body. And a through hole for inserting the tip of the fixing bolt, which corresponds to the female screw hole on the side of the clamp body, in the flange portion formed at the base end. .