Bicycle braking system
US4020925A · kind A · utility
Inventors
Key dates
| Filing date | Nov 10, 1975 |
| Grant date | May 3, 1977 |
| Priority date | — |
| Expiry date | Nov 10, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62L3/08
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An improvement in braking of the wheels of a bicycle wherein both front and rear wheels are equipped with a coaster brake. Flexible connections are provided between the reaction torque arm of the rear coaster brake and the front brake for applying the front brake. Interposed in the connections is a proportioning lever mechanism for adjustably controlling the amount of braking effect transmitted to the front brake. Flexible connections are provided from the reaction torque arm of the front brake back to the lever mechanism for applying a feedback increment of actuation to the front brake. The system increases the effectiveness of the front brake by taking fuller advantage of the weight transfer which occurs in stopping, and the function of preventing throwing the rider over the handlebars is preserved while the positive feedback increment of control increases the braking effort of the front wheel in proportion to the increased load on the front wheel, which occurs in stopping.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.