Reciprocating power tool
US7059425B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 9, 2004 |
| Grant date | Jun 13, 2006 |
| Priority date | — |
| Expiry date | Jan 9, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25D2250/021
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
It is an object of the present invention to provide a reciprocating power tool having a further improved power transmission mechanism for converting a rotating output of a driving motor into linear motion in the axial direction of the tool bit. According to the present invention, a representative reciprocating power tool may comprise a tool bit, a driving motor, a power transmission mechanism. The power transmission mechanism converts a rotating output of the driving motor into linear motion in the axial direction of the tool bit. The power transmission mechanism includes an internal gear, a planetary gear and a power transmission pin. The internal gear is allowed to rotate by a predetermined degree in relation to a load applied to the tool bit. As the result of rotation of the internal gear, the relative position of the power transmission pin is changed with respect to the point of engagement between the internal gear and the planetary gear. Thus, a linear stroke of the power transmission pin in the axial direction of the tool bit is changed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.