公开(公告)号：WO2012014503A1

公开(公告)日：2012-02-02

申请号：PCT/JP2011/004360

申请日：2011-08-01

Applicant: HITACHI KOKI CO., LTD. ,  OOMORI, Katsuhiro ,  NAKAMURA, Mizuho ,  ITO, Yutaka ,  NISHIKAWA, Tomomasa ,  MASHIKO, Hironori ,  SUMI, Atsushi ,  TAKEDA, Takeshi ,  OGURA, Masayuki

Inventor： OOMORI, Katsuhiro ,  NAKAMURA, Mizuho ,  ITO, Yutaka ,  NISHIKAWA, Tomomasa ,  MASHIKO, Hironori ,  SUMI, Atsushi ,  TAKEDA, Takeshi ,  OGURA, Masayuki

IPC: B25B21/00 ,  B25B21/02

CPC classification number: B25B21/00 ,  B25B21/02

Abstract: An screw tightening tool (1) includes: a handle part (22) to be held by a user; a trigger (25); a power supplying section (6, 7) that supplies an electrical power in accordance with an operated amount of the trigger; and a motor (3) that rotates in accordance with the electrical power supplied from the power supplying section. The power supplying section supplies the motor with a preventing electrical power for preventing the motor from rotating with respect to the handle part when a predetermined condition is satisfied.

Abstract translation: 螺钉紧固工具（1）包括：用户保持的手柄部分（22）; 触发器（25）; 供电部（6,7），其根据所述触发器的操作量供给电力; 以及根据从供电部供给的电力而旋转的电动机（3）。 当满足预定条件时，供电部分为马达提供防止电动机相对于手柄部分旋转的防止电力。

公开(公告)号：WO2012002578A1

公开(公告)日：2012-01-05

申请号：PCT/JP2011/065630

申请日：2011-06-30

Applicant: HITACHI KOKI CO., LTD. ,  OOMORI, Katsuhiro ,  NAKAMURA, Mizuho ,  ITO, Yutaka ,  TAKANO, Nobuhiro ,  NISHIKAWA, Tomomasa ,  MASHIKO, Hironori ,  TAKAHASHI, Shigeru

Inventor： OOMORI, Katsuhiro ,  NAKAMURA, Mizuho ,  ITO, Yutaka ,  TAKANO, Nobuhiro ,  NISHIKAWA, Tomomasa ,  MASHIKO, Hironori ,  TAKAHASHI, Shigeru

IPC: B25B21/02

CPC classification number: B25B21/02 ,  B25B21/00 ,  B25B21/026 ,  B25D16/006

Abstract: An impact tool (1) includes a motor (3); a hammer (42) having a rotational axis extending in a first direction, the hammer (42) being rotatable in a rotational direction including a forward direction and a reverse direction opposite to the forward direction by the motor (3) and being movable in the first direction and a second direction opposite to the first direction; an anvil (52) disposed at the first direction side of the hammer (42) and strikable by the hammer (42) in the forward direction, the hammer (42) that has been struck the anvil (52) being moved in the second direction to come free from the anvil (52); and a fixing member (45A, 46A) that selectively allows the hammer (42) to move in the second direction or prevents the hammer (42) from moving in the second direction.

Abstract translation: 冲击工具（1）包括马达（3）; 具有沿第一方向延伸的旋转轴的锤（42），所述锤（42）能够通过所述马达（3）沿包括前进方向和与所述向前方向相反的反向的旋转方向旋转，并且能够在 第一方向和与第一方向相反的第二方向; 设置在所述锤（42）的所述第一方向侧且能够通过所述锤（42）沿前方方向撞击的砧座（52），所述锤（42）被撞击所述砧座（52）沿所述第二方向移动 从砧座脱离（52）; 以及选择性地允许锤子（42）沿第二方向移动或防止锤子（42）在第二方向上移动的固定构件（45A，46A）。

公开(公告)号：WO2011122361A1

公开(公告)日：2011-10-06

申请号：PCT/JP2011/056484

申请日：2011-03-11

Applicant: HITACHI KOKI CO., LTD. ,  NISHIKAWA, Tomomasa ,  TAKANO, Nobuhiro ,  IWATA, Kazutaka ,  MASHIKO, Hironori ,  OOMORI, Katsuhiro ,  NAKAMURA, Mizuho ,  ITO, Yutaka

Inventor： NISHIKAWA, Tomomasa ,  TAKANO, Nobuhiro ,  IWATA, Kazutaka ,  MASHIKO, Hironori ,  OOMORI, Katsuhiro ,  NAKAMURA, Mizuho ,  ITO, Yutaka

IPC: B25B21/02 ,  B25B23/147

CPC classification number: B25B23/1475 ,  B25B21/02

Abstract: An electronic pulse driver (1) includes a motor (3), a hammer (4), an anvil (5), an end tool mounting unit (51), a power supply unit (24), and a control unit (72). The hammer (4) is rotationally driven in forward and reverse directions by the motor (3). The anvil (5) is rotated upon striking the hammer (4) against the anvil as a result of a rotation of the hammer in the forward direction after rotation of the hammer in the reverse direction for obtaining a distance for acceleration in the forward direction. The power supply unit (24) alternately supplies to the motor (3) a forward electric power and a reverse electric power in a first cycle. The control unit (72) controls the power supply unit (24) to alternately supplies the forward electric power and the reverse electric power in a second cycle shorter than the first cycle when an electric current flowing to the motor (3) increases to a prescribed value.

Abstract translation: 电子脉冲驱动器（1）包括电动机（3），锤子（4），砧座（5），端部工具安装单元（51），电源单元（24）和控制单元（72） 。 锤（4）由马达（3）沿正反方向旋转驱动。 砧座（5）由于锤子沿相反方向旋转之后沿着向前方向的转动而将锤子（4）撞击砧座旋转，以获得在向前方向上的加速的距离。 电源单元（24）在第一周期中交替地向电动机（3）供给正向电力和反向电力。 控制单元（72）控制供电单元（24），当流过马达（3）的电流增加到规定的时间时，在比第一周期短的第二周期中交替地供给正向电力和反向电力 值。

公开(公告)号：WO2011013853A2

公开(公告)日：2011-02-03

申请号：PCT/JP2010063235

申请日：2010-07-29

Applicant: HITACHI KOKI KK ,  TANIMOTO HIDEYUKI ,  TAKANO NOBUHIRO ,  NISHIKAWA TOMOMASA ,  IWATA KAZUTAKA ,  MASHIKO HIRONORI ,  YAMAGUCHI HAYATO ,  NAKAGAWA ATSUSHI ,  OOMORI KATSUHIRO ,  NAKAMURA MIZUHO ,  UCHIDA HIROKI ,  NAKANO SAROMA ,  ITO YUTAKA

Inventor： TANIMOTO HIDEYUKI ,  TAKANO NOBUHIRO ,  NISHIKAWA TOMOMASA ,  IWATA KAZUTAKA ,  MASHIKO HIRONORI ,  YAMAGUCHI HAYATO ,  NAKAGAWA ATSUSHI ,  OOMORI KATSUHIRO ,  NAKAMURA MIZUHO ,  UCHIDA HIROKI ,  NAKANO SAROMA ,  ITO YUTAKA

IPC: B25B21/02 ,  B25B23/147

CPC classification number: B25B21/02 ,  B25B21/026 ,  B25B23/1475

Abstract: According to an aspect of the present invention, there is provided an impact tool including: a motor drivable in an intermittent driving mode; a hammer connected to the motor; an anvil to be struck by the hammer to thereby rotate/strike a tip tool; and a control unit that controls a rotation of the motor by switching a driving pulse supplied to the motor in accordance with a load applied onto the tip tool.

Abstract translation: 根据本发明的一个方面，提供了一种冲击工具，其包括：以间歇驱动模式驱动的马达; 连接到电机的锤子; 由锤子撞击的砧座，从而旋转/敲击尖端工具; 以及控制单元，其通过根据施加到所述尖端工具上的负载切换提供给所述电动机的驱动脉冲来控制所述电动机的旋转。

公开(公告)号：WO2011013852A1

公开(公告)日：2011-02-03

申请号：PCT/JP2010/063233

申请日：2010-07-29

Applicant: Hitachi Koki Co., LTD. ,  TANIMOTO, Hideyuki ,  TAKANO, Nobuhiro ,  NISHIKAWA, Tomomasa ,  IWATA, Kazutaka ,  MASHIKO, Hironori ,  YAMAGUCHI, Hayato ,  NAKAGAWA, Atsushi ,  OOMORI, Katsuhiro ,  NAKAMURA, Mizuho ,  UCHIDA, Hiroki ,  NAKANO, Saroma

Inventor： TANIMOTO, Hideyuki ,  TAKANO, Nobuhiro ,  NISHIKAWA, Tomomasa ,  IWATA, Kazutaka ,  MASHIKO, Hironori ,  YAMAGUCHI, Hayato ,  NAKAGAWA, Atsushi ,  OOMORI, Katsuhiro ,  NAKAMURA, Mizuho ,  UCHIDA, Hiroki ,  NAKANO, Saroma

IPC: B25B21/02 ,  B25B23/147

CPC classification number: B25B21/02 ,  B25B21/026 ,  B25B23/1475

Abstract: According to one embodiment, an impact tool includes: a motor (3); and a hammer (11) that is connected to the motor and that has a striking-side surface; and an anvil (16) that is journalled to be rotatable with respect to the hammer (11), that has a struck-side surface and that provides a striking power to a tip tool, wherein the motor (3) is drivable in: a first driving mode in which the motor (3) is continuously driven in a normal rotation; a second driving mode in which the motor (3) is intermittently driven only in the normal rotation; and a third driving mode in which the motor (3) is intermittently driven in the normal rotation and in a reverse rotation.

Abstract translation: 根据一个实施例，冲击工具包括：马达（3）; 以及连接到所述电动机并具有击打侧表面的锤（11）; 和相对于所述锤（11）可旋转的砧座（16），所述砧座（16）具有撞击侧表面并向尖端工具提供打击动力，其中所述电动机（3）可驱动为： 第一驱动模式，其中马达（3）以正常旋转连续驱动; 电动机（3）仅在正常旋转中间歇驱动的第二驱动模式; 以及马达（3）在正常旋转和反向旋转中间歇地驱动的第三驱动模式。