Sealless strapping tool and method therefor
AssigneeIllinois Tool Works Inc.
InventorDavid E. Crittenden
Life of this patent
Estimating the term…
Abstract
A sealless strapping tools and methods therefor including a feed wheel for engaging and tensioning an upper strap portion, a strap sealing actuator cam engageable with a strap sealing member to engage the strap sealing member with overlapping strap portions, a lifting cam engageable with a strap sealing member to disengage the strap sealing member from the overlapping strap portions, a release cam engageable with a pivotal link to disengage the feed wheel from the strap before the lifting cam fully disengages the strap sealing member from the overlapping strap portions.
Claims20
A sealless strapping tool comprising:
- a base plate;
- a feed wheel rotatably coupled to a pivotal link, the feed wheel is located adjacent a leading end portion of the base plate;
- a strap sealing member;
- a lifting cam engageable with the strap sealing member to move the strap sealing member away from the base plate;
- a release cam engageable with the link to move the feed wheel away from the base plate,
- the release cam moves the feed wheel away from the base plate before the lifting cam moves the strap sealing member away from the base plate.
A method for applying strap with a sealless strapping tool, comprising:
- tensioning overlapping strap portions disposed on a base plate with a feed wheel frictionally engaged with an upper strap portion;
- sealing the overlapping strap portions with a strap sealing member engageable therewith;
- disengaging the feed wheel from the upper strap portion when the strap sealing member is engaged with the overlapping strap portions;
- and
- disengaging the strap sealing member from the overlapping strap portions after the feed wheel is disengaged from the upper strap portion.
Dependencies are inferred from the claim text.