(19)
(11) EP 2 712 708 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
21.03.2018 Bulletin 2018/12

(43) Date of publication A2:
02.04.2014 Bulletin 2014/14

(21) Application number: 13184680.0

(22) Date of filing: 17.09.2013
(51) International Patent Classification (IPC): 
B25B 21/02(2006.01)
 B25B 21/00(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 28.09.2012 JP 2012216027

(71) Applicant: Panasonic Intellectual Property Management Co., Ltd.
Osaka-shi, Osaka 540-6207 (JP)

(72) Inventors:
  • Tanaka, Naotake
    Chuo-ku, Osaka 540-6207 (JP)
  • Tsubakimoto, Hiroyuki
    Chuo-ku, Osaka 540-6207 (JP)

(74) Representative: Appelt, Christian W. 
Boehmert & Boehmert Anwaltspartnerschaft mbB Pettenkoferstrasse 22
80336 München
80336 München (DE)

   


(54) Impact rotation tool


(57) An impact rotation tool (1) includes a switching shaft (73) (73), which extends through a drive shaft (6), and a coupling member (72), which is coupled to the switching shaft (73). The switching shaft (73) moves the coupling member (72) to a position where the coupling member (72) is engaged with the wall of only the drive shaft hole (54) to switch the impact rotation tool (1) to an impact mode. The switching shaft (73) moves the coupling member (72) to a position where the coupling member (72) is engaged with the walls of both of the drive shaft hole (54) to switch the impact rotation tool (1) to a drill mode. The wall of the drive shaft hole (54) includes an engagement portion (75), which is engaged with the coupling member (72) in the impact mode, and a relief (76), which does not contact the outer circumferential surface of the coupling member (72) in the impact mode.







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Search report