Electric working machine
US11723314B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2020 |
| Grant date | Aug 15, 2023 |
| Priority date | — |
| Expiry date | May 26, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01G2003/0461
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An electric working machine may include a support rod, a head unit, a position fixing mechanism, and a resistance member. The support rod may extend in a front-rear direction and include an attachment portion located at a front end of the support rod. The head unit may include a front tool, a motor configured to drive the front tool, and a head housing supporting the front tool and coupled to the attachment portion rotatably about a rotation axis. The position fixing mechanism may be configured to fix a rotation position of the head unit with respect to the support rod. The resistance member may be interposed between the attachment portion and the head housing with respect to a direction perpendicular to the rotation axis. The resistance member may be configured to provide a resistance force against rotation of the head unit with respect to the support rod.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.