JP2002098110A - C-shaped clamping tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a C-shaped firm clamping tool in which a load receiving surface is displaced in accordance with the required height. SOLUTION: In the C-shaped clamping tool, a novel block 6 is provided at the opposite portion of a clamping threaded rod 2 of a C-shaped frame 1 and the block 6 pivots at the center of a pin 5. Furthermore, a novel block 16 pivots at the center of the pins 18, 19 of a nip carrying shaft 17. Then, a hingelike block 21 prepared at a C-shaped frame 20 pivots at the center of a hinge pin 22 and a hingelike block 26 welded at a C-shaped frame 24 pivots at the center of a pin 20b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a C-shaped clamp tool in which a tightening screw rod is screwed to a C-shaped frame.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 8 and 9, a C-type clamping tool of this type has a loading surface 33 of a frame 31 provided at an extended end of a C-shaped frame 30 opposed to a tightening screw bar.
In this case, since the inner surface 32 of the C-shaped frame 30 protrudes inward, an auxiliary member 34 is added as shown in FIG. FIG. 9 is a diagram illustrating a state in which clamping is performed without an auxiliary member.

[0003]

[Problems to be Solved by the Invention] Clamping Screw C
When trying to clamp a member with a clamp tool, how fast the screw rod can approach the member and how fast it can be released, and also the shape of the receiving surface is stable due to the shape of the member It is required that the clamp can be reliably formed with the specified shape. The present invention seeks to solve this.

[0004]

Means for Solving the Problems To solve the above problems, the present invention provides a receiving surface 3 of a C-shaped claim clamp tool.
In order to change the height of No. 3, the member of the stand 31
A new piece base 6 is provided starting from the pin 5 on the shaped frame to provide a rotatable mechanism. Next, in the invention of claim 2, a pivot 17 is provided between the C-shaped frame 1 and the new bridge 15, as shown in FIG. Changed mechanism.

[0005]

Embodiments of the present invention will be described below in detail. FIG. 1 is a general view of a C-shaped clamp tool. A frame 1 has a tightening screw rod 2, a handle 3,
The pusher 4 and the new piece stand 6 are configured to be rotatable about the pin 5.

FIGS. 2A and 2B show an example of clamping a formwork 9 used in construction and civil engineering work. FIG. 8 shows a state in which the same mold is clamped by the conventional C-shaped clamp tool 30.
This is as shown in FIG.

It can be understood from this that if the frame base 31 is formed as a separate member in order to change the height of the receiving surfaces 7 and 33, one of the forms 9
Since the receiving surface 8 of the new piece stand 6 clamps one part, stable clamping can be performed. Further, when the clamp is released, if the tightening screw rod 2 is rotated several times, the state shown in FIG. 2B is obtained, so that the C-shaped clamp tool can be promptly removed. still,
At the time of installation, the operation is reversed.

Next, FIG. 3 is a view showing a state in which the contact surface 13 of the new frame 6 which is a cross section of the new frame 6 is in contact with the receiving surface 7 of the C-shaped frame 1. That is, the hole diameter 12 of the new stand 6 is set large so that the load applied to the new stand 6 does not act on the pin 5.

FIG. 4 is a view showing a state of a member clamp when a frame stand is unnecessary, and a member 14 is provided on the receiving surface 7 of the C-shaped frame 1.
And the screw rod 2. FIG. 5 is a perspective view of the C-shaped frame 1 which is connected to pins 18 and 19 at both ends of the pivot shaft 17 of the new frame 15 and rotates. It can change to the loading surface 16.

FIG. 6 shows an example in which the opposite end of the tightening screw shaft 2 of the C-shaped frame 20 is hinged so as to install the above-mentioned target base. That is, the C-shaped frame 20
Is molded so that the pin 22 and the hinge part 23 enter therein,
One side 23 of the hinge is incorporated and a function as a hinge is formed through the pin 22 and the new piece stand 21 is welded and attached to one side of the hinge. FIG. 7 shows a case where a hinge 25 is attached to a C-shaped frame 24 and a new bridge 26 is welded to one side of the hinge.

FIG. 8 is a view in which a building form is clamped by a conventional C-shaped clamping tool. FIG. 8 shows an auxiliary member 34 inserted to assist the insufficient height of the frame base 31, and the building form is clamped. Indicates the state. Next, FIG. 9 shows a state in which the architectural formwork is clamped without using the auxiliary member, and the surface 11 of the formwork, a part of the frame base 31 of the C-type frame 30 and the surface 32 of the C-type frame
2 shows an unstable state clamped by the clamp 4 of the tightening screw rod 2.

[0012]

As described above, according to the present invention, the receiving surface of the conventional C-shaped clamp tool is also left, and the height of the receiving surface can be changed immediately by the member. Can provide a stable clamp as well as improved work efficiency.

[Brief description of the drawings]

FIG. 1 is an overall view of a C-type clamp tool.

FIG. 2A is a diagram in which members are clamped by a C-type clamp tool, and FIG.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a diagram showing a state in which a member that does not require a new block 6 is clamped by a C-type clamp tool.

FIG. 5 is a view of a C-type clamping tool using a new piece stand 16;

FIG. 6 is an assembly diagram of a hinge type formed by molding one end of a C-shaped frame to make the new piece stand a hinge type.

FIG. 7 is a diagram of a C-type clamp tool in which a hinge is welded to one end of a C-type frame and a new stand is attached thereto.

[0014]

[Explanation of symbols]

1 ... C-shaped frame, 2 ... Tightening screw rod, 6 ... Shinkodai,
8 ... receiving surface, 9 ... form frame, 15 ... Shinkomadai, 16 ... receiving surface,
17: clamping shaft, 20: C-shaped frame, 21: new piece stand, 2
3 Hinge parts, 24 C-shaped frame, 25 Hinge, 26
... new piece stand, 30 ... C-shaped frame, 31 ... piece stand, 33 ... receiving surface, 34 ... auxiliary member

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[Procedure amendment]

[Submission date] December 12, 2000 (200.12.
12)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Brief description of drawings

[Correction method] Change

[Correction contents]

[Brief description of the drawings]

FIG. 1 is an overall view of a C-type clamp tool.

FIG. 2A is a diagram in which members are clamped by a C-type clamp tool, and FIG.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a diagram showing a state in which a member that does not require a new block 6 is clamped by a C-type clamp tool.

FIG. 5 is a view of a C-type clamping tool using a new piece stand 16;

FIG. 6 is an assembly diagram of a hinge type formed by molding one end of a C-shaped frame to make the new piece stand a hinge type.

FIG. 7 is a diagram of a C-type clamp tool in which a hinge is welded to one end of a C-type frame and a new stand is attached thereto.

FIG. 8 is a diagram showing a state in which a conventional C-shaped clamping tool is used to clamp the auxiliary member.

FIG. 9 is a diagram showing a state in which a conventional C-type clamp tool is used for clamping without an auxiliary member.

[0014]

[Description of Signs] 1 ... C-shaped frame, 2 ... Tightening screw rod, 6 ... Shinkodai,
8 ... receiving surface, 9 ... form frame, 15 ... Shinkomadai, 16 ... receiving surface,
17: clamping shaft, 20: C-shaped frame, 21: new piece stand, 2
3 Hinge parts, 24 C-shaped frame, 25 Hinge, 26
... new piece stand, 30 ... C-shaped frame, 31 ... piece stand, 33 ... receiving surface, 34 ... auxiliary member

Claims (2)

[Claims] 1. A clamping tool for a C-shaped frame provided with a clamping screw shaft rod capable of moving forward and backward in the axial direction, wherein the end of the C-shaped frame opposed to the clamping screw shaft rod has a tip end of the clamping screw shaft rod. A C-shaped clamping tool, characterized in that a platform that forms a receiving surface of a clamp member is rotatably provided. 2. The apparatus according to claim 1, wherein a frame base is rotatably provided by using a pivot shaft at an end of the C-shaped frame so that the height of the receiving surface can be changed. Clamp tool.