Cordless nail gun
AssigneeRobert Bosch GmbH
InventorsHarald Krondorfer, Eric Hlinka, John DeCicco
Life of this patent
Estimating the term…
Abstract
A device for impacting a fastener in one embodiment includes a frame, a motor mounted to the frame and including a drive shaft defining a drive shaft axis, a lever arm including a pivot axis parallel with the drive shaft axis, a flywheel rotatably mounted on the lever arm and operably connected to the motor for storing energy received from the motor, a drive mechanism for impacting a fastener, and a solenoid configured to pivot the lever arm between a first position wherein the flywheel is spaced apart from the drive mechanism and a second position wherein the flywheel can contact the drive mechanism.
Claims16
A method of impacting a fastener comprising:
- storing energy on a flywheel supported by a lever arm;
- energizing a solenoid;
- moving a solenoid pin of the solenoid along a first axis;
- pivoting the lever arm about an axis coextensive with an axis of a drive shaft of a motor using the solenoid pin;
- transferring energy from the flywheel to a drive mechanism;
- moving a portion of the drive mechanism generally along the first axis;
- and
- impacting a fastener using the drive mechanism.
A device for impacting a fastener comprising:
- a frame;
- a motor mounted to the frame and including a drive shaft defining a drive shaft axis;
- a lever arm including a pivot axis coexistensive with the drive shaft axis;
- a flywheel rotatably mounted on the lever arm and operably connected to the motor for storing energy received from the motor;
- a drive mechanism for impacting a fastener by movement along a drive mechanism axis;
- and
- a solenoid configured to pivot the lever arm between a first position wherein the flywheel is spaced apart from the drive mechanism and a second position wherein the flywheel can contact the drive mechanism by movement of a solenoid pin generally along the drive mechanism axis.
Dependencies are inferred from the claim text.