Patent · US Expired

Friction clutch that produces pressure force with two springs

US5862901A · kind A · utility

6Cited by

7References

15Claims

0Family size

Assignee

Fichtel & Sachs · DE

Inventors

Michael Weiss · Dittelbrunn, DE
Reinhold Weidinger · Unterspiesheim, DE

Key dates

Filing date	Feb 26, 1997
Grant date	Jan 26, 1999
Priority date	—
Expiry date	Feb 26, 2017

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16D13/585
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A friction clutch, wherein the pressure force is obtained from the interaction of two different types of spring. A plate spring, which is unable by itself to apply the pressure force for transmitting the torque, is used, and at least one additional spring, which produces a force effect in the same direction and the force of which is added to the force of the diaphragm spring, is also used.

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