Table saw having locking mechanism for locking table extension thereof
AssigneeDurq Machinery Corp.
InventorsChia-Sheng Liu, Yu-Feng Chan
Life of this patent
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Abstract
A table saw includes two guide bars movable along two opposite sides of a worktable to carry a table extension, and a locking mechanism for locking the guide bars in position. The locking mechanism includes a handle pivoted to a coupling block at the bottom side of the worktable, two eccentric members reversely mounted in the handle, and two links respectively coupled between the eccentric members and the guide bars and movable with the handle to force a respective stop block against or to release the respective stop block from the guide bars to further lock or unlock the guide bars and the table extension.
Claims6
A table saw comprising:
- a worktable;
- at least one rail provided at said worktable;
- a coupling block fixedly provided at a bottom side of said worktable;
- at least one guide bar coupled to said at least one rail and movable along said at least one rail relative to said worktable;
- and
- a locking mechanism for locking said at least one guide bar to said at least one rail, said locking mechanism comprising a pivot pin fastened to said coupling block, a handle coupled to said pivot pin and turnable about said pivot pin between a locking position where said locking mechanism locks said at least one guide bar to said at least one rail and an unlocking position where said at least one guide bar is unlocked from said at least one rail, said handle having a grip at a rear end thereof for the holding of the hand, at least one eccentric member mounted in said handle and having an actuating edge, and at least one link having a hook disposed at one end thereof and fitting the actuating edge of said at least one eccentric member and a stop portion disposed at an opposite end thereof for stopping against said at least one rail, said stop portion being forced against said at least one rail when said handle is moved to said locking position, said stop portion being disengaged from said at least one rail when said handle is moved to said unlocking mechanism;
- wherein said at least one rail includes a first rail and a second rail respectively fixedly provided at two opposite sides of said worktable;
- said at least one guide bar includes a first guide bar coupled to said first rail and a second guide bar coupled to said second rail;
- said at least one eccentric member of said locking mechanism includes a first eccentric member and a second eccentric member reversely mounted in said handle, said first eccentric member and said second eccentric member each having a respective actuating edge;
- said at least one link includes a first link and a second link, said first link having first end terminating in a hook to fit the actuating edge of said first eccentric member and a second end coupled to said fist guide bar, said second link having a first end terminating in a hook to fit the actuating edge of said second eccentric member and a second end coupled to said second guide bar.
Dependencies are inferred from the claim text.