Patent · US Expired

Roller spindle assembly and brake actuator incorporating the same

US6158557A · kind A · utility

10Cited by

10References

9Claims

0Family size

Assignee

Continental AG · DE

Inventors

Wulf Leitermann
Thomas Dieckmann · Pattensen, DE
Joachim Beck · Albstadt, DE
Wolfgang Kloblen · Reutlingen, DE

Key dates

Filing date	Jul 20, 1998
Grant date	Dec 12, 2000
Priority date	—
Expiry date	Jul 20, 2018

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/19781
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

The invention relates to a roller spindle assembly (2) having a spindle rod (4) and a spindle nut (6) and roller bearings (10). The roller bearings are journalled between the spindle nut (6) and the spindle rod (4). The spindle rod (4) and the spindle nut (6) move relative to each other and, for a relative movement of the spindle rod to the spindle nut (6), the roller bearings (10) are displaced out of a start position. The roller bearings (10) are journalled in a cage (8) resiliently biased by a return spring (12). With the cage (8), the roller bearings (10) are guided back into the start position after a completed displacement from the start position when the spindle rod (4) and spindle nut (6) are at rest. In this way, it is not necessary to provide a conventional return of the roller bearings (10) with the aid of complex return-guide channels in the spindle nut (6).

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