Blocked change gear transmission utilizing resilient shifting mechanisms and improved jaw clutch assembly therefor
US4375172A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 1, 1981 |
| Grant date | Mar 1, 1983 |
| Priority date | — |
| Expiry date | May 1, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19888
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An improved, blocked, change gear transmission utilizing at least one improved resilient jaw clutch assembly to selectively engage a selected gear to a shaft is provided. The improved jaw clutch assembly comprises two axially engageable jaw clutch members and a blocker mechanism to prevent engagement of the jaw clutch members until the jaw clutch members are rotating at a substantially synchronous speed. Preferably, one of the jaw clutch members carries axially and radially outwardly extending external clutch teeth designed for selective interengagement with axially and radially inwardly extending internal jaw clutch teeth carried by the other jaw clutch member. The improvement comprises providing a back-lash between the interengageable clutch teeth which is substantially greater than the back-lash normally utilized with similar clutch assemblies, said increased back-lash being in the range of five to fifteen times greater than normal back-lash and preferably about ten times greater than normal back-lash.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.