Tool with charge advance mechanism
AssigneeIllinois Tool Works Inc.
InventorsThomas James Murdoch, Paul Van De Loo, Kade Richard Turner
Life of this patent
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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 method of operating a powder actuated fastening tool having a barrel, a trigger, a charge advance member, and a rotatable ratchet having a plurality of teeth extending in a first direction from a first surface of the rotatable ratchet and a plurality of ratchet ramps extending in an opposite second direction from an opposite facing second surface of the rotatable ratchet, said method comprising:
- receiving a powder charge strip relative to the barrel;
- and
- causing the charge advance member to act on one of the plurality of ratchet ramps to rotate the rotatable ratchet to cause the plurality of teeth to engage receptacles formed in the powder charge strip to advance the powder charge strip relative to the barrel.
A method of operating a powder actuated fastening tool having a barrel, a trigger, a charge advance member coupled to the trigger, and a hexagonal rotatable ratchet having a plurality of teeth configured to engage receptacles formed in a powder charge strip, said method comprising:
- receiving a powder charge strip relative to the barrel;
- and
- causing the charge advance member to act on the hexagonal rotatable ratchet to rotate the hexagonal rotatable ratchet in response to one of actuation and release of the trigger, such that the rotation of the hexagonal rotatable ratchet causes advance of the powder charge strip relative to the barrel.
Dependencies are inferred from the claim text.