Patent ID: 6902158

Claim:
A rotary clamp movable between an unclamped position and a position comprising: a housing ( 3 ) having a first end wall ( 3 a ) and a second end wall ( 3 b ); a clamp rod ( 5 ) having a first slide portion ( 11 ), a second slide portion ( 12 ) and an input portion ( 14 ), the first slide portion ( 11 ) and the second slide portion ( 12 ) being supported by and axially movable with respect to the first end wall ( 3 a ) and the second end wall ( 3 b ), the input portion ( 14 ) being provided between the first slide portion ( 11 ) and the second slide portion ( 12 ), wherein the clamp rod ( 5 ) is moved toward the second end wall ( 3 b ) when changing the clamp from the unclamped position to the clamped position; at least one guide groove ( 26 ) having a rotary portion ( 27 ) and a straight portion ( 28 ), the at least one guide groove ( 26 ) being provided in an outer periphery of the second slide portion ( 12 ) so that the at least one guide groove ( 26 ) extends continuously from the rotary portion ( 27 ) to the straight portion ( 28 ); and an engaging member ( 29 ) provided in the second end wall ( 3 b ) so as to engage with the rotary portion ( 27 ) and the straight portion ( 28 ).