Method for making a boom of an excavator
US6637111B2 · kind B2 · utility
10Cited by
21References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2002 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Jul 8, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49448
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A boom body comprises a boom front member, a boom intermediate member and a boom rear member. An arm-connection bracket is jointed to the boom front member and a vehicle body-mounting bracket is jointed to the boom rear member, thereby forming a boom. With this structure, a cross section of the boom body is less prone to be deformed and therefore, the plate thickness can be reduced, the rigidity of the boom body can be increased without mounting a cross section restraint material and the cross section of the boom is not deformed. Therefore, it is possible to reduce the boom in weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.