Patent · US Expired

Mechanical transmission shifting mechanism

US4936156A · kind A · utility

8Cited by
4References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 21, 1989
Grant dateJun 26, 1990
Priority date
Expiry dateJun 21, 2009

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T74/20024
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

An improved fluid operated (X-Y) shifting mechanism (100) is provided for shifting gears or clutches of a mechanical change gear transmission. Mechanism (100) features a shift finger (14) that is secured to a shaft (6) that is moved in an axial (Y--Y) direction by at least one piston (28) and is pivoted in a substantially transverse (X--X) direction by at least one piston (12) having a bore (10) in which an end of shaft (6) is supported and operative to rotate relative thereto to substantially lessen rotational inertia in encountered shifting in the (X--X) direction particularly during cold weather.

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