| 摘要 |
The device is a clamp ( 1 ), designed to hold a construction piece, including a clamping lever ( 2 ), which climbs by pivoting around a transverse axis ( 3 ), in a case ( 4 ) formed by two half-shells ( 4 a, 4 b) with mirror symmetry along their joining plane and containing the clamping mechanism of the device ( 1 ), which is operated, by an intermediary shaft of a fluid cylinder ( 6 ) and ( 7 ) and of a system of a connecting rod ( 8 ) and a crank ( 9 ), or directly, between two positions, the first activates the release of the piece and the second activates the clamping of the piece, characterized in that each of the two half-shells ( 4 a, 4 b) forming the case ( 4 ) are made of a material that includes at least one reinforcement insert ( 10 ) made of a distinctively more rigid material and inserted into each half-shell ( 4 a, 4 b) in a zone subjected to high stress during clamping, so as to confer a resistance to stress in that zone, augmented in torsion, traction, or compression.
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