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1. 发明公开

EP2848371A4 AUTOMATIC TRANSMISSION FOR POWER TOOLS 有权
标题翻译：自动供电动工具
公开(公告)号：EP2848371A4
公开(公告)日：2016-09-21
申请号：EP13787616
申请日：2013-05-08
申请人： PANASONIC IP MAN CO LTD
发明人： ATSUMI MASATOSHI , MATSUMOTO HIROSHI , KUDO TOSHIO
IPC分类号： B25F5/00 , B25B21/00 , F16H63/18
CPC分类号： B25F5/001 , B25B21/008 , F16H63/18 , F16H63/304 , F16H2063/3056
摘要： An automatic gearshift device for a power tool (11) includes a speed reduction mechanism (18) that decelerates and transmits a rotary power of a motor (16), a ring gear (24) that slides and moves to switch a speed reduction ratio, a cam member (45) that moves the ring gear (24), a rotation body (44) rotated in cooperation with the cam member (45), a position detector (43) that detects the position of the ring gear (24), and a controller (46) that controls the driving of the gearshift motor (27) based on the value generated by the position detector (43). An adjustment gear (42) forming the rotation body (44) includes a slot (42a) used as a positioning mark at a predetermined location in the rotating direction. When the slot (42a) of the adjustment gear (42) is aligned with a predetermined device side positioning reference, the rotation body (44) is positioned in an initial position in a relative positional relationship with the ring gear (24).

2. 发明公开

EP2674262A4 POWER TOOL 有权转让
标题翻译： ELEKTROWERKZEUG
公开(公告)号：EP2674262A4
公开(公告)日：2017-05-10
申请号：EP12744616
申请日：2012-02-06
申请人： PANASONIC IP MAN CO LTD
发明人： ARIMURA TADASHI , YAMADA YUTAKA , INAGAKI KENICHIRO , ATSUMI MASATOSHI , KAIZO HIROYUKI
IPC分类号： B25F5/00 , B25B21/00 , B25B23/14
CPC分类号： B25B21/008 , B25F5/00
摘要： A power tool includes: a motor that serves as a rotational power source and is rotatable in a normal rotation direction and a reverse rotation direction; an output unit that is driven by the motor to be rotated; and a transmission that is located between the motor and the output unit and switches a reduction ratio. The power tool further includes a control means. The control means makes the transmission perform switching operation of the reduction ratio in response to a workload, and changes an initial reduction ratio in the transmission when work is started, in response to a rotation direction of the motor. The initial reduction ratio is set as the reduction ratio in an initial setting.
摘要翻译：动力工具包括：马达，其用作旋转动力源并且可沿正常旋转方向和反向旋转方向旋转; 输出单元，其由马达驱动以被旋转; 以及位于电动机和输出单元之间并且切换减速比的变速器。动力工具还包括控制装置。控制装置响应于工作负荷使变速器执行减速比的切换操作，并且响应于电动机的旋转方向而改变在开始工作时变速器中的初始减速比。初始减速比被设定为初始设定中的减速比。

3. 发明公开

EP2674260A4 ELECTRIC TOOL 有权转让
公开(公告)号：EP2674260A4
公开(公告)日：2018-04-11
申请号：EP12744315
申请日：2012-02-06
申请人： PANASONIC IP MAN CO LTD
发明人： ARIMURA TADASHI , INAGAKI KENICHIRO , ATSUMI MASATOSHI , YAMADA YUTAKA , KAIZO HIROYUKI
IPC分类号： B25F5/00 , B25B23/14
CPC分类号： B25B21/00 , B25B21/008
摘要： An electric tool of the present invention includes a transmission for switching a reduction ratio between a motor as a rotational power source and an output unit rotatably driven by the motor. The electric tool further includes a driving state detecting means detecting at least two driving states, of driving states that vary in response to a magnitude of a load when the output unit is driven, and a controlling means making the transmission switch the reduction ratio when the at least two driving states detected by the driving state detecting means satisfy predetermined conditions preset for the respective driving states.

4. 发明公开

EP2679346A4 ELECTRIC TOOL 有权转让
公开(公告)号：EP2679346A4
公开(公告)日：2018-03-14
申请号：EP12749060
申请日：2012-02-07
申请人： PANASONIC IP MAN CO LTD
发明人： INAGAKI KENICHIRO , KAIZO HIROYUKI , ATSUMI MASATOSHI , ARIMURA TADASHI , YAMADA YUTAKA
IPC分类号： B25F5/00 , B25B21/00 , F16D48/06 , F16H61/02
CPC分类号： B25B21/008 , B25F5/001 , F16D11/14 , F16D28/00 , F16D2011/002 , F16H61/32 , F16H63/18 , F16H2306/50
摘要： In an electric tool according to the present invention, a reduction mechanical unit is formed so as to switch the reduction ratio by using a switching member moving slidably in an axial direction, and a gear member engaging with the switching member. A reduction ratio switching means includes: a gear shift actuator sliding the switching member; a drive state detecting unit detecting a driving state of a motor; a slide position detecting unit detecting a slide position of the switching member; and a control unit starting the gear shift actuator and temporarily modifying a rotational power of the motor. The control unit modifies a relative rotation speed between the switching member and the gear member when a gear shift is in an incomplete state in which the switching member has not moved slidably to a target position yet.

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