US Patent 9328751 Effort-saving clamp structure
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A clamp may include a fixed clamp, a movable clamp, a control handle and a restricting unit. The fixed clamp has a clamping block and a rod. The movable clamp has a clamping unit which faces the clamping block, and a teeth unit disposed at a rear side of the clamping unit. The control handle has a receiving slot near the teeth unit, and a plug disposed on both sides of the receiving slot. The restricting unit has a non-circular elongated slot and disposed at the receiving slot and a plug is passing through the elongated slot. A teeth portion of the restricting unit and teeth unit are engaged with each other, and when the restricting unit is pressed to separate the teeth portion and teeth unit, the restricting unit moves along the elongated slot to drive the teeth portion to move backwards to separate from the teeth unit.
US Patent 09328751 Effort-saving clamp structure US Patent 9328751 Effort-saving clamp structure
US Patent 09328751 Effort-saving clamp structure
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