Boom lock means
US4273502A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1979 |
| Grant date | Jun 16, 1981 |
| Priority date | — |
| Expiry date | Mar 16, 1999 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F3/388
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A releasable locking mechanism for holding a boom in a stored position on a support consists of a latch pivotally supported on the boom and normally held in a first position with a pin carried by the swing tower and aligned with the latch. The pin and latch are positioned such that movement of the boom to the stored position will automatically pivot the latch and produce an interlocking relationship. The release mechanism consists of first and second pivotally interconnected elements, one of which is supported along the pivot axis for the swing tower on the vehicle and the second element having a control member extending therefrom to the operator's station. A universal connection is provided between the control member and the second element, and is located along the vertical pivot axis for the swing tower.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.