Patent · US Expired

Semi-blocked transmission

US4735109A · kind A · utility

32Cited by
23References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 22, 1987
Grant dateApr 5, 1988
Priority date
Expiry dateJul 22, 2007

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T74/19284
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A compound change gear semi-blocked transmission (10) of the splitter type is provided. The transmission comprises a multi-speed main section (12) connected in series with an multi-speed auxiliary section (14). The main section utilizes manually engaged, non-blocked, nonsynchronized jaw clutch assemblies (56, 58, 60) while the auxiliary section utilizes resiliently shifted blocked jaw clutch assemblies (114, 116, 118, 120). The blocked jaw clutch assemblies are provided with ramps (176, 178, 180, 182) which will cause unblocking during a clutching operation if the main section is not engaged.

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