Wiper ring and ball screw provided with wiper ring
US6732599B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2001 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Dec 12, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19749
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A wiper ring to be applied to a nut of a ball screw having a screw shaft comprises a plurality of segments each constituted as independent element having a seal portion to be contacted to the screw shaft, support pins extending in an axial direction of the screw shaft so as to correspond to the segments, respectively, the segments being arranged in a circumferential direction of the screw shaft to be rotatable about the pins, the pins being connected to each other through support members so as to limit the relative movement of the respective pins, and a spring member for urging the segments arranged circumferential direction of the screw shaft so as to be directed towards radially central side of the screw shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.