Patent · US Active

Ball screw

US7694600B2 · kind B2 · utility

4Cited by

7References

10Claims

0Family size

Assignee

Ina Schaeffler KG · DE

Inventors

Juergen Osterlaenger · Emskirchen, DE
Ralf Mayer · Weitra, AT
Dieter Adler · Herzogenaurach, DE
Manfred Kraus · Kehl, DE

Key dates

Filing date	Nov 1, 2005
Grant date	Apr 13, 2010
Priority date	—
Expiry date	Aug 29, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/19749
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

Ball screw, having a spindle nut (2) which may be provided on a recirculating ball screw (1) and on the inner circumference of which turns (3) of ball grooves (4), helically wound around an axis, are provided in which balls (5) can roll, at least one return element (8), arranged on the outer circumference of the spindle nut (2) and provided with a return duct (9) for the balls (5), at its two ends connecting a start of a turn (3) to an end of a turn (3) in order to permit a continuous recirculation of the balls (5), the return element (8) between its two ends being supported on a support (15, 21), the return element (8) being resiliently supported by means of at least one spring element (14) on the support (15, 21).

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