Patent · US Expired

Spring for a free-wheel device and assembly comprising such a spring

US4766987A · kind A · utility

8Cited by
12References
18Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 23, 1986
Grant dateAug 30, 1988
Priority date
Expiry dateJun 23, 2006

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16D2041/0605
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

Spring for a free-wheel device with wedging cams, of the type comprising a series of main undulations (8) provided with apertures (9) for allowing the cams (2) to pass through and for holding them, and a plurality of tilting tongues (12) each acting on one of the side faces of a cam in the direction assisting the wedging action, characterized in that the rear edge of each aperture has a flat portion (10) folded back towards the outside and capable of bearing against a surface portion (22) of the rear side of the cam, the tilting tongue (12) being located on the side where the front edge of the aperture (9) is located.

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