Caliper brake lever arm return spring force adjusting apparatus and method
US6491137B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2001 |
| Grant date | Dec 10, 2002 |
| Priority date | — |
| Expiry date | Mar 16, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2127/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A bicycle disc brake caliper includes a lever arm rotatable about a pivot axis and a rotary to linear linkage between the lever arm and a brake pad translating rotation of the lever arm in an advancement and a return direction to linear advancement or return, respectively, of the brake pad. A return spring is coiled about a spring axis as a first end is fixed against rotation relative to the lever arm and a second end is rotatable with the lever arm about the spring axis. A screw is selectively rotatable about a screw axis and is operatively associated with an end of the spring to selectively rotate the end of the spring relative to the other end of the spring about the spring axis by rotation of the screw independent of movement of the lever arm to adjust the return force applied by the spring to the lever arm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.