Synchronizing device with spring element applying constant force to a disc set for achieving the synchronization moment
US5921362A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1997 |
| Grant date | Jul 13, 1999 |
| Priority date | — |
| Expiry date | Aug 19, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19284
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A synchronizing device (2) is proposed for torque-transmitting connection of two rotary parts of a shift transmission, in particular for connecting a transmission shaft (4) with gearwheel (6, 8) rotatably supported on the transmission shaft (4). A synchronizer sleeve (30) has an outer disc carrier (36) connected with a gearshift device (64) and an inner disc carrier (34). A set of discs (40) is provided between the disc carriers (34, 36). The adjacent discs of the set of discs (40) are alternatively connected either with the inner disc carrier (34) or with the outer disc carrier (36). When the speed of rotation of the outer disc carrier (36) differs from that of the inner disc carrier (34), the discs allow a synchronization moment. For that purpose the outer disc carrier (36) has a device (62) for form-fittingly connecting the outer disc carrier (36) with a device (60, 76) on the gearwheel (6, 8). After an axial displacement of the outer disc carrier (36) in direction to the gearwheel (6, 8) to be engaged, form locking is achieved before the torque-transmitting coupling teeth (24, 26, 32) between the inner disc carrier (34) and the gearwheel (6, 8) engage each other. The inner disc…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.