Patent · US Expired

Variable-leverage brakes for bicycles

US4014408A · kind A · utility

8Cited by
3References
15Claims
0Family size

Inventor

Key dates

Filing dateAug 7, 1975
Grant dateMar 29, 1977
Priority date—
Expiry dateAug 7, 1995

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB62L1/16
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

Multi-stage engagement of a bicycle wheel rim is effected by force simultaneously applied to a slidable caliper and a pivoted caliper causing sequential displacement of the calipers. Displacement of the slidable caliper at a low leverage ratio is terminated by a locking action in response to initial brake contact to cause subsequent pivotal displacement of the pivoted caliper at a high leverage ratio for increased braking contact with the wheel rim.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.