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US 6,450,489 B1Granted
Work clamp for woodworking machines
OwnerChing-Shu Wanginventor
Life of this patent
Estimating the term…
Abstract
A work clamp for wood-working machines, includes a guide bar, a fixed clamping plate fixedly mounted on the guide bar, a movable clamping plate slidably mounted on the guide bar and moved relative to the fixed clamping plate to hold down workpiece with the fixed clamping plate, and a control device adapted to control movement of the movable clamping plate on the guide bar relative to the fixed clamping plate and to lock the movable clamping plate in the desired position.
Claims8
A work clamp for woodworking machines, comprising:
- a guide bar;
- a fixed clamping plate fixedly fastened to said guide bar, said fixed clamping plate having a clamping face disposed at a bottom side thereof;
- a movable clamping plate mounted on said guide bar and driven to move along said guide bar relative to said fixed clamping plate, said movable clamping plate having a clamping face disposed at a bottom side thereof and facing the clamping face of said fixed clamping plate for clamping workpiece between said fixed clamping plate and said movable clamping plate;
- a handle, said handle having a fixed end pivoted to said movable clamping plate and a free end terminating in a handgrip;
- a linkage, said linkage comprising two first links, said first links each having a top end pivoted to said handle and a bottom end, two coupling plates bilaterally pivotally coupled between said movable clamping plate and the bottom end of each of said first link, and a second link, said second link having a first end pivoted to said coupling plates and a second end;
- and
- a stop plate mounted on said guide bar between said fixed clamping plate and said movable clamping plate, said stop plate having a bottom end coupled to the second end of said second link.
4 more elements
Dependencies are inferred from the claim text.