Gas spring fastener driver
AssigneeTechtronic Cordless GP
InventorEssam Namouz
Life of this patent
Estimating the term…
Abstract
A fastener driver includes a drive blade movable from a retracted position to a driven position for driving a fastener into a work piece. The fastener driver further includes a gas spring mechanism for driving the drive blade from the retracted position to the driven position. The gas spring mechanism is moveable between a retracted state and a driven state. The fastener driver further includes a first return mechanism for moving the drive blade from the driven position toward the retracted position, and a second return mechanism for returning the gas spring mechanism toward the retracted state separately from movement of the drive blade.
Claims20
A fastener driver comprising:
- 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 being movable between a retracted state and a driven state;
- a first return mechanism for moving the drive blade from the driven position toward the retracted position;
- and
- a second return mechanism for returning the gas spring mechanism toward the retracted state separately from movement of the drive blade.
A method of operating a fastener driver, the method comprising:
- initiating a drive cycle;
- releasing a gas spring mechanism from a retracted state thereby driving a drive blade from a retracted position to a driven position;
- moving the drive blade from the driven position toward the retracted position with a first return mechanism;
- and
- moving the gas spring mechanism from a driven state toward the retracted state with a second return mechanism, the second return mechanism configured to return the gas spring mechanism toward the retracted state separately from the drive blade.
Dependencies are inferred from the claim text.