Structure of a connecting shaft mechanism of a caster assembly
US7134167B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jun 29, 2004 |
| Grant date | Nov 14, 2006 |
| Priority date | — |
| Expiry date | Jul 15, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60B33/026
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A caster includes a wheel, and a connecting shaft mechanism for holding the wheel in position; the shaft mechanism includes a sleeve consisting of two half parts, and a supporting shank member, which is held in the sleeve at an upper end, and with which the wheel is connected; the supporting shank member is formed with two flat portions, which face outwards in opposite directions; the sleeve half parts are connected together by means of bolts with inward sides thereof facing each other; each of the sleeve half parts has a flat portion on the inward side thereof; the flat portions of the sleeve half parts touch respective ones of the flat portions of the supporting shank member for preventing angular displacement of the supporting shank member relative to the sleeve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.