Invention Grant
- Patent Title: Power tool with magneto-pneumatic striking mechanism
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Application No.: US13916184Application Date: 2013-06-12
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Publication No.: US10792799B2Publication Date: 2020-10-06
- Inventor: Albert Binder , Christoph Hakenholt , Jochen Kuntner
- Applicant: Hilti Aktiengesellschaft
- Applicant Address: LI Schaan
- Assignee: Hilti Aktiengesellschaft
- Current Assignee: Hilti Aktiengesellschaft
- Current Assignee Address: LI Schaan
- Agency: Davidson, Davidson & Kappel, LLC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@5b3e2716
- Main IPC: B25D3/00
- IPC: B25D3/00 ; H02K35/00 ; B25D11/06 ; H01F7/16 ; H02K33/12

Abstract:
A power tool 1 including a bit socket 6 which is configured to hold a chiseling bit 7 so that the latter can move along an axis of movement 3. A magneto-pneumatic striking mechanism 2 includes a primary drive 22 that is arranged around the axis of movement 3 and that has a first magnet coil 46, a permanently and radially magnetizable ring magnet 42 and a second magnet coil 47 arranged consecutively in the striking direction 5. On the axis of movement 3, inside the magnet coils 46, 47, the striking mechanism 2 has a striker 4 and a striking block 13 arranged consecutively in the striking direction 5. An air cushion 23 acts upon the striker 4 in the striking direction 5.
Public/Granted literature
- US20130333911A1 POWER TOOL WITH MAGNETO-PNEUMATIC STRIKING MECHANISM Public/Granted day:2013-12-19
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