JPH088329Y2 - Clamp - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clamp, and more particularly to a clamp for attaching a pipe material to an opening of an L-shaped steel.

[0002]

2. Description of the Related Art There has not been a sufficient clamp for clamping a pipe material, which is attached to an opening of an L-shaped steel along the longitudinal direction, to the L-shaped steel.

[0003]

Therefore, it is desired to provide a clamp in which a pipe material is easily attached to the opening of the L-shaped steel and which has a simple structure.

[0004]

[Means for Solving the Problems]

Attachment comprising a base portion having a cylindrical shape and provided with a through hole in the axial direction, and a grip portion which is continuously curved and extends from the base portion and which is provided with a projection for gripping a pipe material on the curved inner surface. The upper and lower sides of the base of the mounting part can be sandwiched so that the axial direction of the base part of the mounting part and the longitudinal direction of the L-shaped steel coincide with the axial direction of the mounting part, and the inner curved surface of the curved gripping part faces the L-shaped steel opening. So that there is a space above and below L
A support part formed by forming a hole in the center of each of two plate-like bodies that are horizontally fixed to the back surface of the shape steel, and one end side has a smaller diameter than the other end, and the diameter increases from one end of the small diameter to the other end side. And a pin that is detachably attached to the small-diameter tip portion by detachably attaching a locking pin and penetrating through a through hole provided in the attachment portion and a hole provided in the support portion. Clamp featuring

[0006] to provide.

[0007]

The pipe material is inserted into the opening of the L-shaped steel along the longitudinal direction of the opening, and the through hole of the attachment portion and the hole provided in the support portion are aligned, and the through hole and the hole are pinned from the small-diameter end portion. To insert. Then, with the pin as the axis, the curved gripping end of the mounting portion is rotated with the curved inner side facing the pipe material side, and is moved as far as possible to the opposite side of the pin across the L-shaped steel and the pipe material. Then, since the gripping portion is pulled to the side opposite to the pin, the inner surface on the side opposite to the L-shaped steel of the through hole of the mounting portion and the outer surface on the side opposite to the L-shaped steel of the pin are in contact with each other.

Then, the large diameter side of the pin is tapped toward the small diameter side. Then, as the pin is tapped, the pin enters the through hole and the hole and penetrates them. As it penetrates, the large diameter part of the pin is inside the through hole, but the diameter of the pin gradually increases from the tip to the other end, and the anti-L-shaped steel side inner surface of the through hole of the mounting part and the anti-L side of the pin. Since the outer peripheral surface is in contact with the steel mold side, as the pin is inserted, the gripping portion is moved to the pin side, the contact between the L-shaped steel and the pipe material is strengthened and clamped.

When the clamp is released, the pin tip side is tapped toward the large diameter side. Then, the fitting between the pin and the through hole is loosened. Therefore, the tip of the grip portion is rotated and moved from the pipe material to release the contact between the pipe material and the L-shaped steel.

[0010]

Embodiment A description will be given with reference to FIG. 1 showing a perspective view of a use state of an embodiment of the present invention, FIG. 2 showing an A view of FIG. 1, and FIG. 3 showing a perspective view of a mounting portion which is a component view.

Reference numeral 11 is an L-shaped steel, and 12 is a pipe material made of metal. The pipe material 12 is attached in the longitudinal direction of the opening 13 of the L-shaped steel to form the legs of the temporary scaffold.

Reference numeral 21 is a mounting portion. Mounting part 21
Is a base portion 23 that is made of metal and has a columnar shape and is provided with a through hole 22 in the axial direction, and a grip portion 24 that is continuous from the base portion 23 and is curved and extends on the same plane as the base portion 23. Consists of. Reference numerals 25 and 25 are projections for gripping the pipe material, and are provided so as to project on the curved inner surface of the grip portion.

Reference numerals 31 and 31 are supporting portions. Support part 31
Each have a plate shape and are provided with holes 32 in the center thereof. Further, as shown in FIG. 1, the support portion 31 has the curved gripping portion of the mounting portion 21 in which the longitudinal direction of the L-shaped steel 11 installed perpendicularly to the direction of the axis l of the base portion 23 of the mounting portion 21 is aligned. The inner curved surface 24 of the L-shaped steel 11 is sandwiched between the upper and lower surfaces of the base portion 23 of the mounting portion which faces the opening 13 of the L-shaped steel 11 and is fixed to the rear surface of the L-shaped steel 11 at the end on the L-shaped steel side.

Reference numeral 41 is a pin. The lower end of the pin 41 has a smaller diameter than the upper end which is the other end, and the diameter increases as the diameter of the pin 41 increases from the upper end to the lower end. 42 is a locking pin,
It can be inserted into a locking hole 43 provided at the tip of the pin 41.

Next, the operation of the embodiment will be described. The pipe material 12 is inserted into the opening 13 of the L-shaped steel 11 along the longitudinal direction of the opening 13. Next, the through hole 22 of the mounting portion 21 and the hole 32 provided in the support portion are aligned, and the pin 41 is inserted into the through hole 22 and the hole 32 from the small-diameter end portion. Then, with the pin 41 as an axis, the tip of the curved grip portion 24 of the mounting portion 21 is rotated with the curved inner side facing the pipe material 12 side, and can be rotated to the opposite side of the pin 41 with the L-shaped steel 11 and the pipe material 12 interposed therebetween. Move as much as possible. Then, since the grip portion 24 is pulled to the opposite side of the pin 41, the inner surface of the through hole 22 of the mounting portion 21 opposite to the L-shaped steel 11 contacts the outer peripheral surface of the pin 41 opposite to the L-shaped steel 11.

Next, the large diameter side of the pin 41 is tapped with the hammer 51 so that the large diameter side of the pin 41 faces the small diameter side. Then, as the pin 41 is tapped, the pin 41 enters the through holes 22 and 32 and penetrates them. As it penetrates, pin 41
Although the large diameter portion of the pin 41 is in the through hole 22, the pin 41 gradually increases in diameter from the tip to the other end side, and the inner surface of the through hole 22 of the mounting portion 21 on the opposite side of the L-shaped steel 11 and the pin 41.
Since the outer peripheral surface of the L-shaped steel 11 on the opposite side is in contact, the grip portion 24 is moved to the pin side as the pin 41 is inserted, and the contact between the L-shaped steel and the pipe material is strengthened and clamped. It Furthermore, since the pipe material is locked by the pipe material gripping projection 25, the fitting is not released.

The locking pin 42 is inserted into the locking hole 43 to prevent the pin 41 from coming off.

When the clamp is released, the locking pin 42
After pulling out, tap the tip of the pin 41 toward the large diameter side with a hammer 51. Then, the fitting between the pin 41 and the through hole 22 is loosened. Then, the tip of the grip portion 21 is rotated and moved from the pipe material 12 to release the contact between the pipe material 12 and the L-shaped steel 11.

[0019]

[Effects of the Invention] Therefore, in this invention, it is possible to detach the clamp work between the L-shaped material and the pipe material only by tapping with a hammer.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention in use.

FIG. 2 is a view from A of FIG.

FIG. 3 is a perspective view of a mounting portion which is a component of the embodiment of the present invention.

[Explanation of symbols]

 11 L-Shaped Steel 12 Pipe Material 21 Mounting Portion 22 Through Hole 23 Base 24 Grasping Part 25 Pipe Material Grasping Protrusion 31 Supporting Part 32 Hole 41 Pin 42 Locking Pin

Claims (1)

[Scope of utility model registration request] 1. A base portion having a cylindrical shape and provided with a through hole in the axial direction, and a curved portion extending continuously from the base portion.
A mounting portion including a gripping portion formed by providing a pipe material gripping protrusion on the curved inner surface, and an axial center direction L of the base portion of the mounting portion.
The back of the L-shaped steel is spaced vertically so that the longitudinal directions of the shaped steels are aligned and the curved upper surface of the mounting portion can be sandwiched so that the curved inner surface of the gripping portion faces the L-shaped steel opening. And a supporting portion formed by forming a hole in the center of each of two plate-like members that are horizontally fixed to each other, and a surface whose one end has a smaller diameter than the other end and whose diameter increases from one end having a smaller diameter to the other end. In addition, a locking pin is detachably provided on the small-diameter tip portion, and the pin is detachably attached by penetrating a through hole provided in the attachment portion and a hole provided in the support portion. Clamp to do.