Revolving structure for glasses part
US7357502B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 10, 2006 |
| Grant date | Apr 15, 2008 |
| Priority date | — |
| Expiry date | Apr 27, 2026 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2999/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A revolving structure for a glasses part for revolving a second member relative to a first member is provided with a rotational shaft provided on the first member and a cylindrical member with elasticity which is fitted on the rotational shaft externally, where the cylindrical member is fitted on the second member in a state that the cylindrical member is pressed by a pressing member and is not rotated, even if the rotational shaft of the first member is rotated. The second member has a groove portion a in which the cylindrical member is fitted and an arc face for contact with a circumferential face of the cylindrical member is formed on the groove portion. Accordingly, a revolving structure for a glasses part where when a rotational shaft is rotated, sufficient frictional resistant force is provided and entrance of dust or the like is prevented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.