Positioning structure of a retractable handle
US6862776B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Apr 23, 2003 |
| Grant date | Mar 8, 2005 |
| Priority date | — |
| Expiry date | Apr 23, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/32501
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention disclose the positioning structure of a handle comprising a base possessing an axial hole and two hollow spaces mounts on the inner tube; two movable pieces with slanting cambered face provided screw teeth thereon mounts in each of the hollow spaces of the base; a rotating ring mounts on the outer tube; a rotating cone has an axial multilateral hole mounting in the hole of the base and between the two movable pieces, and cone face of the rotating cone provided screw teeth to bite the screw teeth of the movable pieces; and a rotating rod passing through the axial hole of the rotating cone, and one end of the rotating rod is fixed on the rotating ring, so that when rotating the rotating ring can control the retract of the handle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.