Bearing bush and compound movement using the same
US7649290B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2005 |
| Grant date | Jan 19, 2010 |
| Priority date | — |
| Expiry date | Oct 9, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C31/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Provided is a bearing bush enabling excellent advancing and retreating movements of a shaft member by eliminating a clearance between the bearing bush and the shaft member to eliminate a backlash therebetween, capable of reducing a load of dimension control on both the bearing bush and the shaft member, and capable of being manufactured at a low cost. The bearing bush (4) for supporting the reciprocating movement of the shaft member (1) in an axial direction has a receiving hole through which the shaft member (1) is passed. Grooves (40) are sequentially formed at predetermined intervals in an inner peripheral surface of the bearing bush (4) facing the receiving hole. An inner diameter of the receiving hole is formed to be equal to or smaller than an outer diameter of the shaft member (1), and the bearing bush is press-fitted to an outer peripheral surface of the shaft member (1) in a state of a so-called interference fit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.