Hammer drill with wobble mechanism and hollow drive shaft
US7287600B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 27, 2005 |
| Grant date | Oct 30, 2007 |
| Priority date | — |
| Expiry date | Nov 14, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25D2250/245
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A hand power tool has a housing, a drive motor and a gear mechanism arranged in the housing. A tool receptacle accommodates a tool, and a gear wheel drives a rotary sleeve in rotation from the drive motor and the gear mechanism and thereby the tool receptacle. A hammering mechanism is located inside the rotary sleeve and drivable translationally via a wobble gear. The gear mechanism has a driving gear wheel meshing with a motor pinion and arranged on a shaft by which the wobble gear mechanism is drivable to revolve. The shaft is configured as a hollow shaft on which the driving gear wheel is retained nondisplaceably and in a manner fixed against rotation. The wobble gear mechanism is located adjacent to the driving gear wheel on the shaft rotatably and couplably to the hollow shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.