Clamp for concrete forms
AssigneeYamaura Corporation
InventorHayao Yamaura
Life of this patent
Estimating the term…
Abstract
There is provided a clamp for concrete forms which has improved durability compared with a conventional P-clamp, and can withstand vibrations necessarily produced by a vibrator when the concrete is placed. This clamp for concrete forms comprises a substantially U-shaped clamp body which rivets end parts of a pair of L-shaped clamp arms to each other so as to be rotatable and holds a connection part of the concrete forms, and a clamp lever body which presses one clamp arm toward the other clamp arm to press both clamp arms against each other by riveting ends of a pair of arm parts with respect to the other clamp arm so as to be rotatable, and rotates them toward the clamp arm, and engages an opening part formed between the pair of arm parts with the L-shaped bent shoulder part of the other clamp arm.
Claims4
A clamp for concrete forms, comprising:
- a first substantially L-shaped clamp arm having a first clamp leg with an outer shoulder cam surface, and a first joint leg extending about 90° to the first clamp leg;
- a second substantially L-shaped clamp arm having a second clamp leg located opposite to the first clamp leg, and a second joint leg extending about 90° to the second clamp leg and rotatably jointed to the first joint leg;
- and
- a clamp lever body comprising third and fourth arms defining an opening, each of the third and fourth arms having an end part rotatably jointed to the second joint leg;
- wherein two or more frames located between the first and second clamp legs are pressed against each other while the opening in the clamp lever body is engaged by the outer shoulder cam surface on the first clamp arm, and at least the first joint leg fits in the opening defined by the third and fourth arms.
Dependencies are inferred from the claim text.