Guide and hand rail with latch
US4574937A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 1984 |
| Grant date | Mar 11, 1986 |
| Priority date | — |
| Expiry date | Mar 5, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/32393
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A multi-positionable rail for the conveyor of an aircraft belt loader having a rail supported by a plurality of parallel posts pivoted to the side wall of the conveyor and to the rail and collapsible under the force of gravity against a stop positioned on the conveyor side wall to a stowed position wherein the posts and rail are within the silhouette of the conveyor. A first support arm pivoted on the conveyor engages a first pin on a post to position the rail above the conveyor to function as a hand rail and a second support pivoted on the conveyor engage a second pin on a post to position the rail intermediate the stowed and hand rail position. A latch trapped on the post above the first pin is urged by gravity to engage the pin to prevent disengagement of the first arm from the first pin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.