Invention Grant
US08499850B2 Screwdriving power tool with an axially operated percussion mechanism
有权
具有轴向操作的打击机构的螺丝刀电动工具
- Patent Title: Screwdriving power tool with an axially operated percussion mechanism
- Patent Title (中): 具有轴向操作的打击机构的螺丝刀电动工具
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Application No.: US11220750Application Date: 2005-09-06
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Publication No.: US08499850B2Publication Date: 2013-08-06
- Inventor: Thomas Hofbrucker , Thomas Bader , Markus Looser , Horst Rahmsdorf
- Applicant: Thomas Hofbrucker , Thomas Bader , Markus Looser , Horst Rahmsdorf
- Applicant Address: LI Schaan
- Assignee: Hilti Aktiengesellschaft
- Current Assignee: Hilti Aktiengesellschaft
- Current Assignee Address: LI Schaan
- Agency: Abelman, Frayne & Schwab
- Priority: DE102004042952 20040906
- Main IPC: E02D7/06
- IPC: E02D7/06

Abstract:
The screwdriving power tool includes a hollow spindle (8) rotatably supported in the tool housing (4) and driven by a motor (26), a clutch (30) that rotatably connects and disconnects the hollow spindle (8) with and from the motor (26), respectively, in engagement and disengagement positions of the clutch (30), a screwing-in spindle (6) connected with a chuck (10) for a working tool (12) and connected with the hollow spindle (8) for a joint rotation therewith and for an axial displacement relative thereto, and a percussion mechanism (14) for applying a pulsed axial force to the screwing-in spindle (6), with the clutch (30) being brought into its engagement position by the screwing-in spindle (6) by being displaced against a biasing force of the clutch springs (40, 44), and being locked in its engagement position.
Public/Granted literature
- US20060048956A1 Screwdriving power tool with an axially operated percussion mechanism Public/Granted day:2006-03-09
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