Self-steering caster
US4280246A · kind A · utility
20Cited by
2References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 10, 1980 |
| Grant date | Jul 28, 1981 |
| Priority date | — |
| Expiry date | Jan 10, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62B2301/0465
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A self-steering caster is biased into one or more predetermined steering positions with a constant force by a bias wheel arranged to roll along a cam surface in the shape of a circle which is concentric with the caster's swivel axis and whose radius increases at a linear rate in both directions from the point corresponding to the steering position to a point or points on the cam surface remote from the steering position. Detent means may be provided at the steering position to releasably lock the caster in the steering position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.