Clamp device drive apparatus
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United States of America Patent
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Feb 9, 1993
Issued Date -
N/A
app pub date -
Mar 27, 1992
filing date -
Mar 24, 1990
priority date (Note) -
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Abstract
A clamp device drive apparatus for driving a clamp device engaged with a T-shaped groove slidably between a clamping position and an unclamping position, comprises a push-pull chain connected to a clamp device, a vertical housing for containing the chain, guide members for turning a running course of the chain, a sprocket engaged with the chain, and a cylinder drive type motor for driving the sprocket to rotate, and the motor is constituted to drive the sprocket with a double acting fluid cylinder or a pair of single acting fluid cylinder, through ball screw mechanism for converting driving force into driving torque.
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