Crank handle apparatus with fold-away handle
AssigneeHoneywell International Inc.
InventorPierre Ulmann
Life of this patent
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Abstract
A crank handle apparatus with a fold-away handle and a rotation locking mechanism. The apparatus includes an arm, a fold-away handle attached to a first end of the arm, and a crank wheel attached to a second end of the arm. The fold-away handle in a stored position can be moved to an operating position by un-folding the handle. The handle further includes a ring that can be pulled after un-folding the handle so that an index pin located inside the second end of the arm along a first axis enables rotation of the crank wheel along a second axis. The ring can be pulled to move the index pin along with the fold-away handle to secure the fold-away handle against folding back during operation of the crank handle apparatus.
Claims20
A crank handle apparatus, said apparatus comprising:
- a fold-away handle attached to a first end of an arm and a crank wheel attached to a second end of said arm wherein said fold-away handle in a stored position is moved to an operating position by un-folding said fold-away handle;
- and
- a ring attached to said fold-away handle that is pulled after un-folding said fold-away handle so that an index pin located within said second end of said arm along a first axis enables rotation of said crank wheel along a second axis wherein said index pin moves along with said fold-away handle to prevent said fold-away handle from folding back during an operation of said apparatus.
The apparatus of clam 1 further comprising a torsion spring that enhances a folding back to resting position of said apparatus upon release of a pull of said ring.
A crank handle apparatus, said apparatus comprising:
- a fold-away handle attached to a first end of an arm and a crank wheel attached to a second end of said arm wherein said fold-away handle in a stored position is moved to an operating position by un-folding said fold-away handle;
- and
- a ring associated with said fold-away handle, such that said fold-away handle is pullable after unfolding said fold-away handle so that an index pin located within said second end of said arm along a first axis enables rotation of said crank wheel along a second axis wherein said index pin moves along with said fold-away handle to prevent said fold-away handle from folding back during an operation of said apparatus and wherein said fold-away handle is positively locked in an operating position and rests in a stored position.
The apparatus of claim 12 wherein said spring comprises a compression spring.
The apparatus of dam 9 further comprising a torsion spring that enhances a folding back to resting position of said apparatus upon release of a pull of said ring.
A crank handle apparatus, said apparatus comprising:
- a fold-away handle attached to a first end of an arm and a crank wheel attached to a second end of said arm wherein said fold-away handle in a stored position is moved to an operating position by un-folding said fold-away handle;
- a ring attached to said fold-away handle that is pulled after un-folding said fold-away handle so that an index pin located within said second end of said arm along a first axis enables rotation of said crank wheel along a second axis wherein said index pin moves along with said fold-away handle to prevent said fold-away handle from folding back during an operation of said apparatus;
- and
- a spring located within said arm, wherein said spring assists in turning said fold-away handle toward a correct resting position with said crank wheel.
Dependencies are inferred from the claim text.