Ratchet with journaled spool
OwnerGerald M. Kingeryinventor
Life of this patent
Estimating the term…
Abstract
A ratchet for use with a cord includes a pair of opposed tear drop shaped members defining a one piece housing for rotatably supporting a one piece ratchet spool, for supporting a pivotally mounted thumb release and for supporting an angularly displacable hook. Opposed circular cavities are disposed within the members to rotatably support corresponding bosses extending from opposed sides of the spool. A plurality of opposed interleaved non-radial ribs extend from opposed surfaces of the spool to frictionally grip a cord partially extending about the spool. A pair of wheels forming the spool are interlocked with and secured to one another through a key and keyway.
Claims18
A ratchet, said ratchet comprising in combination:
- (a) a housing for supporting a cord engageable spool and including a thumb release for selectively limiting rotation of said spool in one direction and for releasing said spool to rotate in either direction;
- (b) said spool having an axis of rotation and comprising a first wheel and a second wheel, a key and a keyway formed as integral parts of said first and second wheels, respectively, for securing said first and second wheels with one another to prevent relative rotation therebetween, a plurality of first ribs formed on a surface of said first wheel in opposed and interleaved relationship with a plurality of second ribs formed on a surface of said second wheel to grip the cord, each of said first and second ribs including an inner end and in outer end, a first boss formed as part of and extending laterally from said first wheel along the axis of rotation of said spool and a second boss formed as part of and extending laterally from said second wheel along the axis of rotation of said spool;
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- (c) a first cavity and a second cavity disposed in said housing in opposed relationship for rotatably receiving and supporting said first and second bosses to rotatably support said spool within said housing, each of said first and second cavities including a cylindrical wall and an end surface extending across said cylindrical wall, said housing including laterally oriented first and second protrusions for compensating for the depth of said first and second cavities, respectively, in said housing.
A ratchet, said ratchet comprising in combination:
- (a) a housing for supporting a cord engageable spool and including a thumb release for selectively limiting rotation of said spool in one direction and for releasing said spool to rotate in either direction;
- (b) said spool having an axis of rotation comprising in combination a pair of wheels interconnected with one another to prevent relative rotation therebetween, a pair of bosses extending from opposed sides of said spool and centered along the axis of rotation for rotatably supporting said spool;
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- (c) a pair of opposed cavities disposed within said housing and enabled to rotatably engage said bosses to rotatably support said spool within said housing, each cavity of said pair of cavities including a circular wall and an end surface extending across said circular wall.
A ratchet, said ratchet comprising in combination:
- (a) a housing for supporting a cord engageable spool and including a thumb release for selectively limiting rotation of said spool in one direction and for releasing said spool to rotate in either direction;
- (b) said spool having an axis of rotation comprising in combination a pair of wheels interconnected with one another to prevent relative rotation therebetween;
- (c) a first and second plurality of ribs formed as part of said first and second wheels, respectively, adapted to engage from opposed sides a cord partially extending about said spool;
- d) a pair of bosses extending from opposed sides of said spool and centered along the axis of rotation for rotatably supporting said spool;
- and
- (e) a pair of opposed cavities disposed within said housing and enabled to rotatably engage said bosses to rotatably support said spool within said housing, each cavity of said pair of cavities including a circular wall and an end surface extending across said circular wall and a pair of laterally extending protrusions disposed upon said housing generally coincident with said first and second cavities, respectively, for compensating for the reduced material of said housing attendant said first and second cavities.
Dependencies are inferred from the claim text.