Bicycle hub kit
OwnerWei-Yueh CHANGinventor
Life of this patent
Estimating the term…
Abstract
A bicycle hub kit has a hub body, a driver disposed to a first end of the hub body, a sprocket connected to the driver, a clutch sleeve disposed inside the hub body and connected to the driver, and a shaft kit. The shaft kit includes a shaft body, an end base fixed to the shaft body, a ball retainer sleeved on the end base and supporting between the hub body and the end base, and a positioning kit disposed between the end base and the clutch sleeve. The positioning kit can be selected from a sleeve positioning kit and a braking positioning kit. The shaft kit can be detached from the hub body for replacing the positioning kit to transform the bicycle hub kit between with and without a coaster brake.
Claims7
A bicycle hub kit comprising:
- a hub body having a first end and a second end;
- a driver disposed at the first end of the hub body and having
- an outer end extending out of the hub body;
- and
- an inner end extending into the hub body;
- a sprocket connected to the outer end of the driver;
- a clutch sleeve moveably disposed inside the hub body and having
- a first segment extending away from the driver;
- and
- a second segment adjacent to the driver, surrounding and connected to the inner end of the driver, and having an outer diameter being larger than an outer diameter of the first segment;
- and
- a shaft kit comprising
- a shaft body extending through the hub body and the clutch sleeve;
- an end base fixed to and surrounding the shaft body and extending into the second end of the hub body;
- a ball retainer sleeved on and surrounding the end base and supporting between the hub body and the end base;
- and
- a positioning kit disposed between the end base and the clutch sleeve;
- wherein
- the positioning kit is selected from the group consisting of a sleeve positioning kit and a braking positioning kit;
- the sleeve positioning kit includes
- a positioning sleeve sleeved on and surrounding an external periphery of the first segment of the clutch sleeve;
- and
- a bearing kit disposed between the end base and the positioning sleeve and including
- a positioning block connected to the shaft body via a threaded engagement;
- and
- a bearing sleeved on and surrounding the positioning block and having two opposite end surfaces respectively abutting against the end base and the positioning sleeve;
- the braking positioning kit includes
- a braking spring set disposed between the end base and the clutch sleeve and including
- a braking spring extending into the first segment of the clutch sleeve;
- and
- at least one brake pad disposed between an internal peripheral surface of the hub body and outer peripheries of the clutch sleeve and the end base;
- when the positioning kit is the sleeve positioning kit, the clutch sleeve is kept positioned by the positioning sleeve;
- when the positioning kit is the braking positioning kit, the clutch sleeve is driven to move along the shaft body by the driver.
Dependencies are inferred from the claim text.