Quick lock-release mechanism for a trigger switch
AssigneeThe Singer Company
InventorDon L. Harvell
Life of this patent
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Abstract
A quick lock-release mechanism for a trigger of a trigger switch mounted in the handle of a drill housing for activating a motor of a drill, which mechanism will selectively lock and release the trigger. The trigger is slidably connected in the handle with a tapered member affixed in the handle. A locking member is slidably connected to the tapered member and is in superposition to the trigger. A spring is disposed between the trigger and the locking member normally to urge each in opposite directions. The locking member is moveable outwardly of the handle to be forced by the tapered member into a wedge lock position against the trigger whereby the trigger switch is locked "on" and releasable upon slight trigger depression.
Claims5
A quick lock-release mechanism for a trigger of a trigger-switch mounted in the handle of a drill housing for activating a motor of a drill, said mechanism selectively to lock or release the trigger comprising:
- (a) the trigger slidably connected in the handle,
- (b) a tapered member affixed in the handle,
- (c) a locking member slidably connected to the tapered member and in superposition to the trigger,
- (d) a spring disposed between the trigger and the locking member normally to urge each in opposite direction, and
- (e) the locking member movable outwardly to be forced by the tapered member into a wedge-lock position against the trigger whereby the trigger-switch is locked "on" and releasable upon slight trigger depression.
Dependencies are inferred from the claim text.