Reel assembly for chain hoist

摘要

A reel assembly for a chain hoist having a sprocket mounted to a drive portion of a reel. The sprocket is configured to distribute rotational force to links of a drive chain, such as for moving a spare tire in and out of an access position. The sprocket has a first axial half and a second axial half that are formed via a stamped materials and fixedly secured together centrally and mounted on the drive portion. The sprocket includes protrusions and pairs of fingers arranged around and extending radially from a perimeter thereof in an alternating configuration in a circumferential direction. Each protrusion is constructed and arranged to at least partially extend through and engage at least insides of alternate horizontal links of the chain. The pairs of fingers are configured to be circumferentially aligned and receive radially oriented links of the chain therebetween and contact the outsides thereof.

主权项

1. A reel assembly for a chain hoist comprising:
a drive portion configured for rotation about an axis; a sprocket mounted to the drive portion and configured to be driven rotationally about the axis by the drive portion to drive a drive chain; the sprocket comprising a first axial half and a second axial half fixedly secured and a central mounting portion for mounting with the drive portion; the sprocket further comprising protrusions and pairs of fingers arranged around and extending in a radial direction from a perimeter thereof, the protrusions and the pairs of fingers being in an alternating configuration in a circumferential direction of the sprocket; each protrusion extending in the radial direction relative to the axis of the sprocket and constructed and arranged to at least partially extend through and engage at least insides of alternate circumferentially oriented links of the drive chain, each protrusion comprising a first protrusion portion integrally formed as one-piece with the first axial half and a second protrusion portion integrally formed as one-piece with the second axial half with the first and second protrusion portions circumferentially aligned to define the protrusion; and the pairs of fingers each comprising a first finger and a second finger spaced apart from one another in an axial direction and each extending in the radial direction, the first finger of each pair being integrally formed as one-piece with the first axial half of each pair and the second finger of each pair being integrally formed as one-piece with the second axial half, and the first finger and second finger of each pair being circumferentially aligned with one another, wherein the pairs of fingers adjacent to each protrusion are each configured to receive alternate radially oriented links of the drive chain therebetween and contact outsides thereof.