Pulley block
OwnerChristopher Cole, James K. Gerouxinventors
Life of this patent
Estimating the term…
Abstract
A pulley block that includes a first side plate, a second side plate and an axle received in the first side plate and the second side plate. The axle is fixed with the first side plate and in a floating relationship with the second side plate such that the second side plate is retained on the axle and capable of rotating around the axle. The axle defines a central opening configured for receiving a soft shackle and a pulley supported on the axle between the first side plate and the second side plate in a longitudinal direction of the axle. The pulley is configured for receiving a winch line around an outer perimeter thereof. Also a method of installing a winch line on such a pulley block.
Claims19
A pulley block, comprising:
- a first side plate;
- a second side plate;
- an axle received in the first side plate and the second side plate, the axle being fixed with the first side plate and in a floating relationship with the second side plate such that the second side plate is retained on the axle and capable of rotating around the axle, wherein the axle defines a central opening configured for receiving a soft shackle;
- a bushing for the axle;
- and
- a pulley supported on the axle between the first side plate and the second side plate in a longitudinal direction of the axle, the pulley being configured for receiving a winch line around an outer perimeter thereof;
- wherein the bushing for the axle is configured to support the pulley on the axle between the first side plate and the second side plate in the longitudinal direction of the axle, and
- wherein an inner surface of the bushing for the axle defines rifling configured to guide sand, grit, dirt, and other particles caught between the bushing and the axle out of the pulley block as the bushing rotates relative to the axle.
A pulley block, comprising:
- a first side plate;
- a second side plate;
- an axle received in the first side plate and the second side plate, the axle being fixed with the first side plate and in a floating relationship with the second side plate such that the second side plate is retained on the axle and capable of rotating around the axle, wherein the axle defines a central opening configured for receiving a soft shackle;
- and
- a pulley supported on the axle between the first side plate and the second side plate in a longitudinal direction of the axle, the pulley being configured for receiving a winch line around an outer perimeter thereof;
- wherein the pulley defines a plurality of divots in a front face of the pulley and a back face of the pulley, and the pulley block further comprises a plurality of pucks, wherein the plurality of pucks is inserted in the plurality of divots at the front face of the pulley and the back face of the pulley such that the plurality of pucks extend from the front face of the pulley toward the first side plate, and extend from the back face of the pulley toward the first side plate.
A pulley block, comprising:
- a first side plate;
- a second side plate;
- an axle received in the first side plate and the second side plate, the axle being fixed with the first side plate and in a floating relationship with the second side plate such that the second side plate is retained on the axle and capable of rotating around the axle, wherein the axle defines a central opening configured for receiving a soft shackle;
- and
- a pulley supported on the axle between the first side plate and the second side plate in a longitudinal direction of the axle, the pulley being configured for receiving a winch line around an outer perimeter thereof;
- wherein the axle includes a front end received in the first side plate, the front end of the axle defines a groove around an outer perimeter thereof, and the pulley block further comprises a first retaining ring positioned in the groove at the front end of the axle, the first retaining ring being configured for holding the first side plate in place on the axle with respect to the longitudinal direction of the axle,
- wherein the first side plate has a front face with a front recess defined in the front face, and wherein the first retaining ring is disposed in the front recess such that the front face of the first side plate extends outward beyond the first retaining ring in the longitudinal direction of the axle,
- wherein the first side plate and the second side plate are rotatable relative to each other on the axle between a closed position and an open position,
- wherein, in the closed position, a first extension extending from the first side plate over a portion of the pulley toward the second side plate aligns with a second extension extending from the second side plate over a portion of the pulley toward the first side plate,
- wherein, in the closed position, the first extension and the second extension prevent a winch line received around the outer perimeter of the pulley from exiting the pulley block,
- wherein, in the closed position, no part of the first extension contacts any part of the second extension,
- wherein, in the open position, the first extension and the second extension are rotated away from each other sufficient to allow insertion of or removal of a winch line around the outer perimeter of the pulley,
- wherein a first shackle eye that defines a first eyelet for a soft shackle is supported on the first side plate,
- wherein a second shackle eye that defines a second eyelet for the soft shackle is supported on the second side plate, and
- wherein magnets in the first extension extending from the first side plate and in the second extension extending from the second side plate are configured to attract each other and thereby urge the first side plate and the second side plate to be in the closed position.
Dependencies are inferred from the claim text.