Ball connecting body and ball screw apparatus using the same
US6082210A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 14, 1998 |
| Grant date | Jul 4, 2000 |
| Priority date | — |
| Expiry date | Jul 14, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19753
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A ball connecting body in which a multiplicity of balls are arranged in a line at a predetermined interval and in a freely rotating manner. The ball connecting body is installed and used in a ball endless track of a ball screw apparatus in which a screw shaft and a nut member are meshed with each other through a multiplicity of balls. The ball connecting body is constituted by a multiplicity of balls circulating on a substantially circular ring-like ball endless track provided in a bearing apparatus, and a flexible connecting body belt arranging the balls in a line at a predetermined interval and holding each of the balls in a freely rotating manner. Further, the connecting body belt is constituted by a plurality of spacer portions inserted between the mutually adjacent balls and having a spherical seat for bringing the balls into contact therewith formed, and a flange-like connecting band portion mutually connecting the spacer portions so as to outwardly surround the spacer portions, and is formed in a substantially circular ring shape at a time of arranging the balls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.