Tool with charge advance mechanism
AssigneeIllinois Tool Works Inc.
InventorsThomas James Murdoch, Pau Van De Loo, Kade Richard Turner
Life of this patent
Estimating the term…
Abstract
A powder actuated fastening tool including a charge advance apparatus for advancing a powder charge strip relative to a barrel of the tool, wherein the charge advance apparatus includes a rotatable ratchet having teeth for engaging receptacles formed in the powder charge strip, and a charge advance member coupled to a trigger of the tool, wherein the charge advance member acts on the rotatable ratchet to rotate the ratchet in response to actuation and/or release of the trigger, such that the rotation of the ratchet causes advance of the powder charge strip relative to the barrel.
Claims20
A powder actuated fastening tool configured to receive a powder charge strip, the powder actuated fastening tool comprising:
- a barrel slidably movable from an open position to a closed position, wherein when the powder charge strip is received by the powder actuated fastening tool, in the open position the barrel is spaced from a powder charge of the powder charge strip, and in the closed position the barrel encloses the powder charge of the powder charge strip;
- a charge advance apparatus including a rotatable ratchet including teeth engagable with the powder charge strip when the powder charge strip is received by the powder actuated fastening tool and configured to advance the powder charge strip relative to the barrel;
- and
- an alignment member connected to and extending from the barrel such that when the barrel moves a distance, the alignment member moves the same distance, the alignment member configured to move relative to the rotatable ratchet when the barrel is moved from the open position to the closed position to ensure the powder charge of the powder charge strip is in alignment with the barrel.
A powder actuated fastening tool configured to receive a powder charge strip, the powder actuated fastening tool comprising:
- a barrel slidably movable from an open position to a closed position, wherein when the powder charge strip is received by the powder actuated fastening tool, in the open position the barrel is spaced from a powder charge of the powder charge strip, and in the closed position the barrel encloses the powder charge of the powder charge strip;
- a trigger;
- a charge advance apparatus including a rotatable ratchet including teeth engagable with the powder charge strip when the powder charge strip is received by the powder actuated fastening tool, wherein in response to movement of the trigger, the charge advance apparatus causes rotation of the rotatable ratchet to advance the powder charge strip relative to the barrel;
- and
- an alignment member connected to and extending from the barrel such that when the barrel moves a distance, the alignment member moves the same distance, the alignment member configured to move relative to the rotatable ratchet when the barrel is moved from the open position to the closed position to ensure the powder charge of the powder charge strip is in alignment with the barrel.
A powder actuated fastening tool configured to receive a powder charge strip, the powder actuated fastening tool comprising:
- a barrel slidably movable from an open position to a closed position, wherein when the powder charge strip is received by the powder actuated fastening tool, in the open position the barrel is spaced from a powder charge of the powder charge strip, and in the closed position the barrel encloses the powder charge of the powder charge strip;
- a charge advance apparatus including a rotatable ratchet including teeth engagable with the powder charge strip when the powder charge strip is received by the powder actuated fastening tool and configured to advance the powder charge strip relative to the barrel, wherein the rotatable ratchet includes a plurality of ratchet ramps, and wherein the teeth extend in a first direction from a first surface of the rotatable ratchet and the plurality of ratchet ramps extend in an opposite second direction from a second surface of the rotatable ratchet;
- and
- an alignment member movable by the barrel, the alignment member configured to move relative to the rotatable ratchet when the barrel is moved from the open position to the closed position to ensure the powder charge of the powder charge strip is in alignment with the barrel.
Dependencies are inferred from the claim text.