Impact mechanism for a repeatedly striking hand-held machine tool
US7516801B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2004 |
| Grant date | Apr 14, 2009 |
| Priority date | — |
| Expiry date | Oct 27, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25D2250/351
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A percussion mechanism for a repetitively hammering hand power tool, whose striking frequency and striking intensity are controllable independently of one another, has a striker (2), movable axially forward and backward in a guide barrel (1), and a device (5) exerting pressure on the striker (2), as a result of which the striker can be set into a forward motion in the direction of a tool bit (4) that is insertable into the hand power tool. A blocking element (10) is also provided, with which the striker (2) is blockable in its forward motion, and the striking frequency of the striker (2) is adjustable by controlling the blocking time of the blocking element (10).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.