Traversing mechanism
US4198787A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 26, 1978 |
| Grant date | Apr 22, 1980 |
| Priority date | — |
| Expiry date | Oct 26, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18152
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A traversing mechanism of the kind in which a carriage is alternately releasably clamped to a respective one of two parallel runs of an endless belt so as to be reciprocated along a guided path. A coupling wheel is rotatably mounted on the carriage at a location between the two belt runs and has a plurality of radially projecting lobes provided around its outer periphery. In operation, the wheel is rotated in stepwise fashion as permitted by a sliding escapement, to sequentially adopt a plurality of operative positions in each of which a run of the belt is clamped between a wheel lobe and one of the backing surfaces. Each backing surface is mounted for movement towards and away from the respective adjacent belt run under the influence of a camming actuator. The actuator is movable between an engage position in which it urges the two backing surfaces into a position in which it can adopt clamping engagement with the belt, and a disengage position in which the backing surfaces cannot adopt clamping engagement with the belt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.