Twin-engine overhung scraper having a leading arm suspension
US3963086A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 20, 1974 |
| Grant date | Jun 15, 1976 |
| Priority date | — |
| Expiry date | May 20, 1994 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F3/6454
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An earthmoving scraper including an overhung tractor and a trailing scraper bowl in which the latter units are respectively provided with a front axle and a rear axle having a pair of driven wheels. The rear axle of the scraper is rigid with the scraper bowl while the front axle is supported by a suspension including a leading arm the front end of which is fixed with the front axle and the rear end of which is supported by the tractor frame for pivotal movement about a transverse horizontal axis located below a horizontal plane passing through the rotational axis of the front wheels. Spring means are provided between the front axle and the tractor frame for cushioning movement of the front axle about the aforementioned transverse horizontal axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.