Patent · US Expired

Method of making a support for a synchronizing ring

US4866831A · kind A · utility

7Cited by

2References

3Claims

0Family size

Assignee

Borg-Warner Automotive, Inc. · US

Inventors

Gunter Lanzerath · Eppelheim, DE
Helmut Patzer · Schallstadt, DE
Rudolf Muller · Frankfurt, DE

Key dates

Filing date	Dec 7, 1987
Grant date	Sep 19, 1989
Priority date	—
Expiry date	Dec 7, 2007

Classification

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

Abstract

A support is disclosed for a synchronizing ring for the synchronization of gears, in which the stops for coupling to the clutch are formed from lugs which are bonded integrally to the sprocket ring or ring-shaped core. The support is produced economically by a method of punching a flat ring and drawing it into a conical ring-shaped part with an outer radial edge, forming the part and punching an outer sprocket and lugs in the edge, bending the lugs alongside the part to form stops and stamping the tooth profile for the sprocket. The flat ring may also be punched with inwardly extending lugs which are then bent upwardly along the body to form the stops.

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