Ladder assembly
US4139078A · kind A · utility
Inventor
Key dates
| Filing date | Oct 28, 1977 |
| Grant date | Feb 13, 1979 |
| Priority date | — |
| Expiry date | Oct 28, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R3/02
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A ladder assembly, primarily for use on trucks and other vehicles, has a ladder slidable between a retracted, stored position in a ladder storage assembly, and an extended, operative position in which the ladder projects from an extrance of the storage assembly. First and second retainers are provided for retaining the ladder relative to the storage assembly in the stored and operative positions, respectively, and the ladder has opposed lateral projections slidable along guides formed by parallel side members having U-shaped cross-sections the side members being spaced apart to receive the ladder therebetween and forming opposite sides of the storage assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.