Powered fastener driver
AssigneeMilwaukee Electric Tool Corporation
InventorsMitchell T. Neuhoff, Bradley S. Houskamp, Mark C. Hughes
Life of this patent
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Abstract
A powered fastener driver includes a housing, a nosepiece extending from the housing, a driver blade movable within the nosepiece between a ready position and a driven position, a piston coupled to the driver blade for movement therewith, a driver cylinder within which the piston is movable, a magazine coupled to the nosepiece in which collated fasteners are receivable, a fastener delivery mechanism coupled to the nosepiece for individually transferring collated fasteners in the magazine to a fastener driving channel in the nosepiece, the fastener delivery mechanism movable between a fastener retrieval position and a fastener delivered position, and a sensor for determining a position of the fastener delivery mechanism.
Claims20
A powered fastener driver comprising:
- a housing;
- a nosepiece extending from the housing;
- a driver blade movable within the nosepiece;
- a piston coupled to the driver blade for movement therewith;
- a driver cylinder within which the piston is movable from a top dead center position (TDC) and a bottom dead center (BDC) position;
- a magazine coupled to the nosepiece in which collated fasteners are receivable;
- a fastener delivery mechanism coupled to the nosepiece for individually transferring collated fasteners in the magazine to a fastener driving channel in the nosepiece, the fastener delivery mechanism movable between a fastener retrieval position and a fastener delivered position in which a fastener of the collated fasteners is properly loaded into the fastener driving channel;
- and
- a sensor for determining when the fastener delivery mechanism is in the fastener delivered position,
- wherein the fastener delivery mechanism includes a first rocker arm, and wherein the sensor monitors a location of the first rocker arm to determine when the fastener delivery mechanism is in the fastener delivered position.
A method of operating a powered fastener driver, the method comprising:
- monitoring a position of a fastener delivery mechanism;
- determining whether the fastener delivery mechanism has moved from a fastener retrieval position to a fastener delivered position in which a fastener is properly loaded into a fastener driving channel;
- and
- allowing the powered fastener driver to fire when a trigger is actuated and when the fastener delivered position is detected,
- wherein the position of the fastener delivery mechanism is monitored by monitoring a location of a first rocker arm of the fastener delivery mechanism.
Dependencies are inferred from the claim text.