Title:
手持ち電動工具
Document Type and Number:
Japanese Patent JP6709580
Kind Code:
B2
Abstract:
A control method for a power tool for rotary tools comprises rotating a tool holder continuously about a working axis by a rotary drive. A rotary movement of a handle about the working axis is sensed by a motion sensor. A first angle of rotation of the handle is estimated by a first motion estimator, wherein rotary movements beneath a limit value are discounted. A second angle of rotation of the handle is estimated by a second motion estimator, wherein rotary movements beneath the limit value are taken into account. A measure for reducing the torque output of the rotary drive is activated when the first angle of rotation exceeds a first triggering threshold (A1), and when the second angle of rotation exceeds a second triggering threshold (A2) and at the same time a power output of the rotary drive exceeds a power threshold (L).
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Inventors:
Roland share
Application Number:
JP2018538857A
Publication Date:
June 17, 2020
Filing Date:
January 24, 2017
Export Citation:
Assignee:
Maschinenbau Hilti OHG
International Classes:
B25F5/00; B25D17/10
Domestic Patent References:
| JP7253192A | ||||
| JP2008516789A |
Foreign References:
| US20140053419 |
Attorney, Agent or Firm:
Johei Nakamura