Counterbalancing mechanism and power tool having same
US11839964B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 9, 2022 |
| Grant date | Dec 12, 2023 |
| Priority date | — |
| Expiry date | Mar 9, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23D51/16
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A reciprocating power tool may include a driving system including a motor and a transmission received in a housing to drive a reciprocating mechanism. A counterbalance mechanism may be coupled between the driving system and the reciprocating mechanism. The counterbalance mechanism may include a rotating counterbalance mechanism including a first rotating counterweight member and a second rotating counterweight member coupled to an output gear of the driving system. The counterbalance mechanism may include a rocking counterweight member coupled between the output gear and the housing. The output gear may include a recessed portion in which the first rotating counterweight member and a clutching system are received.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.