Invention Grant
- Patent Title: Method for operating a power tool having a clutch device
- Patent Title (中): 用于操作具有离合器装置的动力工具的方法
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Application No.: US13001262Application Date: 2008-11-27
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Publication No.: US08905153B2Publication Date: 2014-12-09
- Inventor: Willy Braun , Juergen Lennartz
- Applicant: Willy Braun , Juergen Lennartz
- Applicant Address: DE Stuttgart
- Assignee: Robert Bosch GmbH
- Current Assignee: Robert Bosch GmbH
- Current Assignee Address: DE Stuttgart
- Agency: Maginot, Moore & Beck LLP
- Priority: DE102008002594 20080624
- International Application: PCT/EP2008/066318 WO 20081127
- International Announcement: WO2009/156005 WO 20091230
- Main IPC: B23Q5/00
- IPC: B23Q5/00 ; B25D17/08 ; B25D16/00

Abstract:
The invention relates to a method for operating power tool, particularly an electrically driven hand power tool, having at least one tool drive shaft for directly or indirectly rotationally driving a tool insert. The tool insert is received in a tool holder releasably connected to the tool drive shaft. The tool drive shaft can be coupled to a drive device via a clutch device. The clutch device is provided with at least two different limit torques, which are selectable by an operator. When the tool insert and/or the tool holder is changed out, the clutch device is reset to a lower limit torque of the at least two different limit torques, particularly the lowest possible limit torque.
Public/Granted literature
- US20110139471A1 METHOD FOR OPERATING A POWER TOOL HAVING A CLUTCH DEVICE Public/Granted day:2011-06-16
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