Patent · US Expired

Transmission synchronizer

US4132298A · kind A · utility

9Cited by
0References
1Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJul 13, 1977
Grant dateJan 2, 1979
Priority date
Expiry dateJul 13, 1997

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16D23/0612
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A transmission synchronizer comprising one piece spring elements adapted to e cam-actuated by a shift collar to provide axial operating forces on synchronizer gears. Each spring element comprises a central V section and straight end sections extending into blind holes in the synchronizer gears. Cam force on apex areas of the V sections produces resilient force on a selected synchronizer gear for bringing the driven gear up to speed before engagement of the shift collar teeth with the driven gear.

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