Gas spring fastener driver
AssigneeTechtronic Power Tools Technology Limited
InventorEssam Namouz
Life of this patent
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Abstract
A fastener driver including a main housing, a drive blade movable from a retracted position to a driven position for driving a fastener into a workpiece, and a gas spring mechanism for driving the drive blade from the retracted position to the driven position. The gas spring mechanism includes a cylinder housing containing a pressurized gas, and a piston movable relative to the cylinder housing and biased by the pressurized gas from a retracted position toward a driven position. The cylinder housing is displaceable along a longitudinal axis of the piston relative to the main housing and away from the drive blade, while the piston remains stationary relative to the main housing, to reduce the pressure of the pressurized gas within the cylinder housing.
Claims16
A fastener driver comprising:
- a main housing;
- a drive blade movable from a retracted position to a driven position for driving a fastener into a workpiece;
- a gas spring mechanism for driving the drive blade from the retracted position to the driven position, the gas spring mechanism including
- a cylinder housing containing a pressurized gas, and
- a piston separable from the drive blade and movable relative to the cylinder housing and biased by the pressurized gas from a retracted position toward a driven position;
- and
- a detent system including a detent positioned on one of the main housing and the cylinder housing, and a plurality of recesses positioned on the other of the main housing and the cylinder housing;
- wherein the cylinder housing is displaceable along a longitudinal axis of the piston relative to the main housing and away from the drive blade, while the piston remains stationary relative to the main housing, to reduce the pressure of the pressurized gas within the cylinder housing, and wherein the detent system selectively secures the cylinder housing in a particular position relative to the main housing.
A fastener driver comprising:
- a main housing;
- a drive blade movable from a retracted position to a driven position for driving a fastener into a workpiece;
- and
- a gas spring mechanism for driving the drive blade from the retracted position to the driven position, the gas spring mechanism including
- a cylinder housing containing a pressurized gas,
- a piston separable from the drive blade and movable relative to the cylinder housing and biased by the pressurized gas from a retracted position toward a driven position, and
- a guide post positioned within the cylinder housing, wherein the guide post is received within a corresponding bore formed in the piston;
- wherein the cylinder housing is displaceable along a longitudinal axis of the piston relative to the main housing and away from the drive blade, while the piston remains stationary relative to the main housing, to reduce the pressure of the pressurized gas within the cylinder housing, and
- wherein the piston is movable relative to the guide post.
Dependencies are inferred from the claim text.