Patent · US Expired

Tension device for drive belt

US4889520A · kind A · utility

6Cited by

2References

33Claims

0Family size

Assignee

AKTIEBOLAGET SKF · SE

Inventors

Manfred Brandenstein · Aschfeld, DE
Gerhard Herrmann · Schweinfurt, DE
Roland Haas · Lendershausen, DE

Key dates

Filing date	Mar 10, 1989
Grant date	Dec 26, 1989
Priority date	—
Expiry date	Mar 10, 2009

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2007/0844
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

Two springs inserted in series, which press a tension roller against a drive belt, are provided in a tension device for a drive belt. The tension spring essentially effects adjustment of the tension roller during assembly and after that effectively is inoperative. The working spring is active during operation and within a limited range of adjustment of the tension roller. The tensions of the two springs are designed so that during assembly equilibrium of forces exists at a middle working point within the path of adjustment. These features result in a simple and precise adjustment during assembly.

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