Automatic control system controlling a ripper used on a construction equipment
US4031964A · kind A · utility
24Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1975 |
| Grant date | Jun 28, 1977 |
| Priority date | — |
| Expiry date | Jan 29, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B63/112
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An automatic control system for a ripper used on a construction equipment in which a load detector is provided on the ripper for detecting load acting on the ripper shank and lift cylinders are actuated to automatically raise the shank when overload is applied to the shank during ripping operation. The ripper is also provided with a depth detector for detecting upper and lower limit positions of the shank and the vertical movement of the shank can be limited between the upper and lower limits. When no overload is applied, the shank is maintained at the lower limit position to rip the ground at a predetermined penetration depth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.