Title:
IMPACT TOOL, AND METHOD AND PROGRAM FOR CONTROLLING IMPACT TOOL
Document Type and Number:
WIPO Patent Application WO/2021/095427
Kind Code:
A1
Abstract:
An objective of the present disclosure is to provide an impact tool that is capable of improving work efficiency, and a method and program for controlling the impact tool. An impact tool (1) comprises a motor (15), a control unit (4), an output shaft, a transmission mechanism, and an impact detection unit (49). The transmission mechanism comprises an impact mechanism. The impact mechanism applies impact force to the output shaft during an impact action. The impact detection unit (49) detects the presence or absence of impact actions on the basis of an excitation current (current measurement value id1) and/or torque current (current measurement value iq1) being supplied to the motor (15). The control unit (4) restricts increases in the rpm of the motor (15) before the impact detection unit (49) detects an impact action, and lifts the restriction on increases in the rpm of the motor (15) when the impact detection unit (49) detects an impact action.
Inventors:
UEDA TAKAHIRO
NAKAHARA MASAYUKI
KUSAGAWA TAKASHI
NAKAHARA MASAYUKI
KUSAGAWA TAKASHI
Application Number:
PCT/JP2020/038840
Publication Date:
May 20, 2021
Filing Date:
October 14, 2020
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
B25B21/00; B25B21/02
Foreign References:
| JP2016078230A | 2016-05-16 | |||
| JP2019030948A | 2019-02-28 | |||
| JP2017132021A | 2017-08-03 |
Other References:
See also references of EP 4059663A4
Attorney, Agent or Firm:
HOKUTO PATENT ATTORNEYS OFFICE (JP)
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