Adjustable freewheel hub assembly
AssigneeG. Falcon Cycle-Parts Co., Ltd
InventorsWei-Yueh Chang, Ryan Eugene Liles
Life of this patent
Estimating the term…
Abstract
An adjustable freewheel hub assembly has a hub component, a coaster brake mechanism, and an adjusting switch. The hub component has an axle, a hub shell, a helix hub driver, and a sprocket. The helix hub driver has a pawl groove and a first engaging notch formed on its periphery. The sprocket is sheathed onto the helix hub driver, is hollow, and has a ratchet teeth construction formed on an inner wall of the sprocket and a second engaging notch. The coaster brake mechanism is disposed in the hub shell and is drivable by the helix hub driver. By the adjusting switch engaged in or detached from the first engaging notch and the second engaging notch, the freewheel hub assembly can be adjusted between a fixed-gear mode and a single-speed mode to have different functions.
Claims12
An adjustable freewheel hub assembly comprising:
- a hub component having
- an axle;
- a hub shell surrounding the axle;
- a helix hub driver disposed on an end of the hub shell, sheathed onto the axle, and having at least one pawl groove and at least one first engaging notch formed on its periphery;
- a brake arm disposed on another end of the hub shell;
- and
- a sprocket sheathed onto the helix hub driver, being hollow, and having
- a ratchet teeth construction formed on an inner wall of the sprocket;
- and
- at least one second engaging notch;
- a coaster brake mechanism disposed in the hub shell and between the helix hub driver and the brake arm, sheathed onto the axle, and being drivable by the helix hub driver to abut against an inner wall of the hub shell;
- and
- at least one adjusting switch detachably engaged in the at least one first engaging notch and the at least one second engaging notch such that the helix hub driver and the sprocket rotate synchronously.
Dependencies are inferred from the claim text.