Fastener driving tool
AssigneeIllinois Tool Works Inc.
InventorHanxin Zhao
Life of this patent
Estimating the term…
Abstract
A fastener driving tool including a housing and a workpiece contact element movably connected to the housing, where the workpiece contact element is movable between a rest position and an activated position. A trigger assembly including a bottom assembly and a top assembly is movably connected to the housing. The tool includes an actuation lever movably connected to the bottom assembly of the trigger assembly and movable between a rest position and an engaged position. The top assembly includes a downwardly extending block configured to engage the actuation lever. A damper mechanism is associated with the actuation lever and is configured to control a rate of movement of the actuation lever.
Claims18
A fastener driving tool comprising:
- a tool housing;
- a workpiece contact element;
- and
- a trigger assembly including a pivotable trigger, a ramp attached to the pivotable trigger, and a downwardly extending block configured to engage the ramp to move the downwardly extending block from a first block position to a second block position, and a block spring that biases the downwardly extending block toward the first block position, the trigger assembly configured to:
- cause the fastener driving tool to operate in a continuous actuation mode for a predetermined time period in response to actuation of the trigger;
- reset the predetermined time period in response to actuation of the workpiece contact element;
- and
- cause the fastener driving tool to switch from the continuous actuation mode in response to the predetermined time period elapsing without actuation of the workpiece contact element.
A fastener driving tool comprising:
- a pivotable trigger;
- a ramp attached to the pivotable trigger;
- an actuation lever;
- a slidable block that engages the actuation lever and the ramp to move the actuation lever to a second lever position different from a first lever position;
- and
- a block spring that biases the slidable block toward a first block position.
A fastener driving tool comprising:
- a tool housing;
- a workpiece contact element;
- and
- a trigger assembly including:
- a pivotable trigger,
- a ramp attached to the pivotable trigger,
- a bottom assembly including:
- an actuation lever coupled to the pivotable trigger,
- an actuation lever spring coupled to the actuation lever to bias the actuation lever to a first lever position, and
- a damper coupled to the actuation lever to control a rate of movement of the actuation lever;
- and
- a top assembly including:
- a top housing attached to the tool housing, and
- a downwardly extending block slidably attached to a rod extending between side walls of the top housing, the downwardly extending block engages the actuation lever and the ramp to move the actuation lever to a second lever position different from the first lever position, and wherein the downwardly extending block engages the ramp to move the downwardly extending block from a first block position to a second block position,
- wherein the trigger assembly is configured to:
- cause the fastener driving tool to operate in a continuous actuation mode for a predetermined time period in response to actuation of the trigger;
- reset the predetermined time period in response to actuation of the workpiece contact element;
- and
- cause the fastener driving tool to switch from the continuous actuation mode in response to the predetermined time period elapsing without actuation of the workpiece contact element.
Dependencies are inferred from the claim text.