Reciprocating drive mechanism and power tool including the same
US9700949B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Aug 1, 2014 |
| Grant date | Jul 11, 2017 |
| Priority date | — |
| Expiry date | Sep 17, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23D49/162
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A reciprocating drive mechanism for a power tool includes a rotatably mounted transmission shaft that has a first central axis, a spindle with a spindle body, and a counterweight for linearly reciprocating motion under the guide of at least one guiding rod. A wobble plate is mounted on the transmission shaft and includes a first arm and second arms extending in opposite directions. The first arm and second arms are configured to cooperate with the spindle and the counterweight respectively so that, upon rotation of the transmission shaft, the first and second arms of the wobble plate drive the spindle and the counterweight to reciprocate in opposite directions parallel to the second central axis. An angle is formed between the extending direction of the first arm and the second arm and a plane defined by the first central axis and the second central axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.