Motor grader having improved guide shoes for circle-mounted implement
US4016936A · kind A · utility
8Cited by
10References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1975 |
| Grant date | Apr 12, 1977 |
| Priority date | — |
| Expiry date | Apr 24, 1995 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F3/764
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A motor grader including a wheeled main frame and a drawbar structure attached thereto is disclosed wherein a circle-mounted working implement, such as a blade or the like, is supported on the drawbar by improved guide shoes. The improved guide shoes include surfaces in engagement with both upper and lower surfaces of the circle at all times and remotely controlled mechanical apparatus for varying the frictional forces exerted by such guide shoes on the circle, whereby undesirable effects due to wearing of the engaging surfaces in operation are reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.