Caster direction-locking mechanism for mobile cart
US4875696A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1988 |
| Grant date | Oct 24, 1989 |
| Priority date | — |
| Expiry date | Sep 12, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62B5/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A caster direction-locking mechanism for a mobile cart improves agility and stability of the cart during high speed movement. This cart includes four casters supporting it for rolling movement. Each caster has a wheel rotatable about a horizontal axis and is mounted with the cart for swiveling movement about a generally vertical axis. The caster direction-locking mechanism selectably locks two adjacent casters against such swiveling movement and with the horizontal axes thereof in generally mutually parallel relation. A handle is mounted on the cart for steering it and an actuator is associated with the handle for actuating the caster direction-locking mechanism to selectably lock and unlock the two casters against swiveling movement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.