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US 11,254,549 B2Granted
Hoist translating drum with bar spline bearing
AssigneeGoodrich Corporation
InventorsBejan Maghsoodi, Domenic Dezan
Life of this patent
Estimating the term…
Abstract
A hoist is disclosed. In various embodiments, the hoist includes a torque tube defining a longitudinal axis and having a radially outer surface; a cable drum having a radially inner surface; and a bar spline disposed radially outward of the torque tube and radially inward of the cable drum and configured to transfer a torque from the torque tube to the cable drum.
Claims9
A hoist, comprising:
- a torque tube defining a longitudinal axis and having a radially outer surface and an axial length;
- a cable drum having a radially inner surface;
- and
- a bar spline disposed radially outward of the torque tube and radially inward of the cable drum and configured to transfer a torque from the torque tube to the cable drum,
- wherein the bar spline includes a mount attached to the radially outer surface of the torque tube and extending along the axial length of the torque tube,
- wherein the bar spline includes a race surface disposed at the radially inner surface of the cable drum and
- wherein the bar spline includes a rod extending parallel to the longitudinal axis, the rod having a circular cross section and disposed within the mount.
4 more elements
A method of hoisting a cable, comprising:
- engaging a radially outer surface of a torque tube with a radially inner surface of a cable drum using a bar spline disposed radially outward of the torque tube and radially inward of the cable drum;
- and
- transferring a torque from the torque tube to the cable drum via the bar spline to wind or unwind the cable disposed about the cable drum,
- wherein the bar spline includes a mount attached to the radially outer surface of the torque tube and extending along an axial length of the torque tube,
- wherein the bar spline includes a race surface disposed at the radially inner surface of the cable drum and
- wherein the bar spline includes a rod extending parallel to the longitudinal axis, the rod having a circular cross section and disposed within the mount.
3 more elements
A rescue hoist, comprising:
- a torque tube defining a longitudinal axis and having a radially outer surface;
- a cable drum having a radially inner surface;
- a bar spline disposed radially outward of the torque tube and radially inward of the cable drum and configured to transfer a torque from the torque tube to the cable drum;
- and
- a level wind mechanism configured to translate the cable drum back and forth with respect to the longitudinal axis,
- wherein the bar spline includes a mount attached to the radially outer surface of the torque tube and extending along an axial length of the torque tube,
- wherein the bar spline includes a race surface disposed at the radially inner surface of the cable drum and
- wherein the bar spline includes a rod extending parallel to the longitudinal axis, the rod having a circular cross section and disposed within the mount.
5 more elements
Dependencies are inferred from the claim text.