One way clutch mechanism for bicycle freewheel hub
AssigneeMaeda Industries, Ltd.
InventorNobuo Ozaki
Life of this patent
Estimating the term…
Abstract
One way clutch mechanism for a bicycle freewheel hub, which comprises a driver having one or more sprockets thereon and co-axial and relatively rotatable with respect to a stationary axle, a hub shell co-axial and relatively rotatable with respect to the axle, an inward conical clutch face formed on or with the hub shell, an internally threaded clutch member co-axially and relatively rotatably mounted on a threaded section of the driver so as to axially move back and forth; an outward conical clutch face formed on or with the clutch member, and a coil spring so arranged as to urge the clutch member axially inwardly thereby to force the outward clutch face away from the inward clutch face.
Claims9
A ratchet type one way conical clutch mechanism for a bicycle freewheel hub, comprising
- a driver having at least one sprocket thereon and relatively rotatable with respect to a stationary axle,
- a hub shell relatively rotatable with respect to said axle and carrying an inward conical clutch face formed,
- an internally threaded clutch member co-axially and relatively rotatably mounted on a threaded section of said driver so as to be movable axially back and forth on said threaded section,
- said clutch member having an outward conical clutch face,
- a disk which is mounted on said axle so as to be axially slidable on said axle within a limited range and which is disposed internally of said clutch member,
- and a compression coil spring means co-axially mounted on said axle for cooperation with said disk so as to urge said clutch member axially inwardly for disengagement of said outward conical clutch face from said inward conical clutch face.
Dependencies are inferred from the claim text.