Front sprocket assembly for human-powered vehicle
AssigneeShimano Inc.
InventorNobukatsu HARA
Life of this patent
Estimating the term…
Abstract
A front sprocket assembly basically includes a front sprocket, a sprocket carrier and at least one slide shaft. The front sprocket includes a sprocket body having at least one carrier mounting portion. The at least one carrier mounting portion has the at least one slide opening. The sprocket carrier includes at least one sprocket mounting portion. The at least one sprocket mounting portion has a first shaft-supporting portion and a second shaft-supporting portion. The at least one slide opening receives the at least one slide shaft between the first shaft-supporting portion and the second shaft-supporting portion.
Claims24
A front sprocket assembly for a human-powered vehicle, the front sprocket assembly having a rotational center axis defining an axial direction, a radial direction and a circumferential direction, the front sprocket assembly comprising:
- a front sprocket including:
- a sprocket body having at least one carrier mounting portion;
- and
- a plurality of sprocket teeth disposed on an outer periphery of the sprocket body in the circumferential direction;
- a sprocket carrier having at least one sprocket mounting portion configured to be coupled to the at least one carrier mounting portion of the sprocket body in a torque-transmitting manner;
- and
- at least one slide shaft having a shaft center axis, a first shaft end and a second shaft end, the second shaft end being opposite to the first shaft end in a shaft axial direction with respect to the shaft center axis, the at least one slide shaft being mounted to one of the at least one carrier mounting portion of the sprocket body and the at least one sprocket mounting portion of the sprocket carrier;
- the one of the at least one carrier mounting portion of the sprocket body and the at least one sprocket mounting portion of the sprocket carrier having a first shaft-supporting portion and a second shaft-supporting portion spaced apart from the first shaft-supporting portion in the shaft axial direction, the first shaft-supporting portion being configured to support the first shaft end of the at least one slide shaft, the second shaft-supporting portion being configured to support the second shaft end of the at least one slide shaft;
- and
- the other of the at least one carrier mounting portion of the sprocket body and the at least one sprocket mounting portion of the sprocket carrier having at least one slide opening configured to receive the at least one slide shaft between the first shaft-supporting portion and the second shaft-supporting portion so that the front sprocket is displaceable relative to the sprocket carrier in at least the axial direction.
Dependencies are inferred from the claim text.