Patent ID: 11858588
Assignee: SHIMANO INC.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 16:
17. A lock device for mounting a plurality of rear sprockets to a rear hub assembly for a human-powered vehicle, the lock device comprising:
a first lock member including:
a first axial end configured to be detachably attached to the sprocket support body of the rear hub assembly in a mounting state where the plurality of rear sprockets is mounted to the rear hub assembly;
a second axial end opposite to the first axial end in an axial direction with respect to a rotational center axis of the plurality of rear sprockets; and
a first surface radially outwardly facing in a radial direction with respect to the rotational center axis; and

a second lock member including:
a third axial end configured to be attached to the second axial end of the first lock member in an assembled state where a smallest sprocket and the lock device are assembled as one unit;
a fourth axial end opposite to the third axial end in the axial direction and having at least one radial projection; and
a second surface radially outwardly facing in the radial direction, the second surface being adjacent to the at least one radial projection in the axial direction,

the at least one radial projection of the second lock member extending radially outwardly from the second surface in the radial direction and being configured to abut against the smallest sprocket of the plurality of rear sprockets in the axial direction in the mounting state,
the first surface being disposed radially outwardly from the second surface in the radial direction in the assembled state,
the plurality of rear sprockets including an adjacent sprocket adjacent to the smallest sprocket without another sprocket between the adjacent sprocket and the smallest sprocket in the axial direction, and
the lock device being configured so that the adjacent sprocket is slidable in the axial direction relative to the lock device in a space provided radially outwardly of the first surface and the second surface in the assembled state and before the mounting state.