Lock-on/lock-off tool switch
AssigneeDefond Components Limited
InventorNelson Man Hoi Lui
Life of this patent
Estimating the term…
Abstract
A trigger mechanism for a power tool includes a chassis; a trigger mounted to the chassis for movement between ON and OFF positions; an electrical switch mounted to the chassis for activation by movement of the trigger between the ON and OFF positions to close and open an electrical circuit; and a locking mechanism comprising a lock button and a latch, user-depression of the lock button causing deflection of the latch to enable depression of the trigger in the OFF position, the pushbutton retaining the latch deflected in the OFF position of the trigger until further depression of the trigger beyond the ON position releases the pushbutton from the latch to enable release of the trigger for return to the OFF position.
Claims7
A trigger mechanism for a power tool, comprising:
- a chassis;
- a trigger mounted to the chassis for movement between ON and OFF positions;
- an electrical switch mounted to the chassis for activation by movement of the trigger between the ON and OFF positions to close and open an electrical circuit;
- and
- a locking mechanism comprising a lock button and a latch, the lock button being arranged upon user-activation to cause displacement of the latch to allow depression of the trigger from the OFF position to the ON position and then to engage the latch to retain the trigger in the ON position until further depression of the trigger beyond the ON position releases the lock button from the latch to enable release of the trigger for return to the OFF position.
Dependencies are inferred from the claim text.