Electric power tool
    1.
    发明授权
    Electric power tool 有权
    电动工具

    公开(公告)号:US08378600B2

    公开(公告)日:2013-02-19

    申请号:US13413837

    申请日:2012-03-07

    IPC分类号: B21F7/00

    摘要: An electric power tool “A” operates a working part 5 by repeating rotation of a motor 4 in a normal direction and in a reverse direction one or more times. The motor 4 includes a brushless motor. Sensors H for detecting a position of a rotor 15 are provided on the motor 4 so as to be advanced by an electrical angle of 30°±θ° from an intermediate position between respective stator teeth 16 in a direction of the normal rotation of the rotor 15. A control part 20 for controlling the rotation of the motor 4 controls a driving signal of the motor 4 based on the results of detection by the sensors H. Moreover, the control part 20 selects a detection signal of the sensors H so that relation between the rotor 15 and the detection signal of the sensors H is equivalent in either of the normal rotation and the reverse rotation of the rotor 15.

    摘要翻译: 电动工具A通过在正常方向和相反方向上反复旋转一次或多次来操作电动机4的工作部件5。 电动机4包括无刷电动机。 用于检测转子15的位置的传感器H设置在电动机4上,从而在各个定子齿16之间的中间位置沿着正向旋转的方向前进30°±& 用于控制马达4的旋转的控制部20基于传感器H的检测结果来控制马达4的驱动信号。此外,控制部20选择传感器H的检测信号,使得 转子15与传感器H的检测信号之间的关系在转子15的正常旋转和反向旋转中的任一方面是相同的。

    Electric power tool
    2.
    发明授权
    Electric power tool 有权
    电动工具

    公开(公告)号:US08198839B2

    公开(公告)日:2012-06-12

    申请号:US12296011

    申请日:2007-04-04

    IPC分类号: B25F5/00 H02P6/08

    摘要: An electric power tool “A” operates a working part 5 by repeating rotation of a motor 4 in a normal direction and in a reverse direction one or more times. The motor 4 includes a brushless motor. Sensors H for detecting a position of a rotor 15 are provided on the motor 4 so as to be advanced by an electrical angle of 30°±θ° from an intermediate position between respective stator teeth 16 in a direction of the normal rotation of the rotor 15. A control part 20 for controlling the rotation of the motor 4 controls a driving signal of the motor 4 based on the results of detection by the sensors H. Moreover, the control part 20 selects a detection signal of the sensors H so that relation between the rotor 15 and the detection signal of the sensors H is equivalent in either of the normal rotation and the reverse rotation of the rotor 15.

    摘要翻译: 电动工具“A”通过在正常方向和相反方向上反复旋转一次或多次来操作电动机4的工作部件5。 电动机4包括无刷电动机。 用于检测转子15的位置的传感器H设置在电动机4上,从而在各个定子齿16之间的中间位置沿着正向旋转的方向前进30°±& 用于控制马达4的旋转的控制部20基于传感器H的检测结果来控制马达4的驱动信号。此外,控制部20选择传感器H的检测信号,使得 转子15与传感器H的检测信号之间的关系在转子15的正常旋转和反向旋转中的任一方面是相同的。

    ELECTRIC POWER TOOL
    3.
    发明申请
    ELECTRIC POWER TOOL 有权
    电动工具

    公开(公告)号:US20090160373A1

    公开(公告)日:2009-06-25

    申请号:US12296011

    申请日:2007-04-04

    IPC分类号: H02P6/22 H02P6/16 H02K7/14

    摘要: An electric power tool “A” operates a working part 5 by repeating rotation of a motor 4 in a normal direction and in a reverse direction one or more times. The motor 4 includes a brushless motor. Sensors H for detecting a position of a rotor 15 are provided on the motor 4 so as to be advanced by an electrical angle of 30°±θ° from an intermediate position between respective stator teeth 16 in a direction of the normal rotation of the rotor 15. A control part 20 for controlling the rotation of the motor 4 controls a driving signal of the motor 4 based on the results of detection by the sensors H. Moreover, the control part 20 selects a detection signal of the sensors H so that relation between the rotor 15 and the detection signal of the sensors H is equivalent in either of the normal rotation and the reverse rotation of the rotor 15.

    摘要翻译: 电动工具“A”通过在正常方向和相反方向上反复旋转一次或多次来操作电动机4的工作部件5。 电动机4包括无刷电动机。 用于检测转子15的位置的传感器H设置在电动机4上,以便在转子的正转方向上从各个定子齿16之间的中间位置前进30°±θ°的电角度 用于控制电动机4的旋转的控制部20基于传感器H的检测结果来控制电动机4的驱动信号。此外,控制部20选择传感器H的检测信号, 在转子15和传感器H的检测信号之间,在转子15的正常旋转和反向旋转中的任意一个中是相同的。

    Apparatus for detecting a distance and apparatus for detecting a body
    4.
    发明授权
    Apparatus for detecting a distance and apparatus for detecting a body 有权
    用于检测距离的装置和用于检测身体的装置

    公开(公告)号:US07496157B2

    公开(公告)日:2009-02-24

    申请号:US11005020

    申请日:2004-12-07

    IPC分类号: H03D1/00

    CPC分类号: G01S7/5273 G01S15/104

    摘要: In an apparatus for detecting a distance and improving the SN ratio of received signals, an angular frequency (ω1) of sinusoidal wave signals generated by a sinusoidal wave generator is brought into synchronism with an angular frequency (ω) of burst pulse signals, and signals received by a transmitter/receiver microphone are orthogonally demodulated by using sinusoidal wave signals of the synchronized angular frequency. A microcomputer adds up the vectors of the demodulated signals for only a period of time equal to a section of transmitting the transmission waves from the transmitter/receiver microphone. A distance to a body is detected by using the received signals of which the vectors are added up.

    摘要翻译: 在用于检测距离和提高接收信号的SN比的装置中,由正弦波发生器产生的正弦波信号的角频率(ω1)与突发脉冲信号的角频率(ω)同步,并且信号 由发射机/接收机麦克风接收的信号通过使用同步角频率的正弦波信号进行正交解调。 微计算机将解调信号的向量仅与传送来自发射机/接收机麦克风的传输波段的一段时间相加。 通过使用向量相加的接收信号来检测到身体的距离。

    HAMMERING TOOL
    6.
    发明申请
    HAMMERING TOOL 有权
    锤子工具

    公开(公告)号:US20110024146A1

    公开(公告)日:2011-02-03

    申请号:US12602870

    申请日:2008-05-23

    IPC分类号: B25D11/04

    摘要: A hammering tool includes, within its tool main body, a piston which reciprocates by using a motor as its drive force, a hammering member which carries out its hammering operation in linking with the reciprocating motion of the piston, and an intermediate member which transmits a hammering force of the hammering member to a top end tool mounted on the top end of the tool main body. The tool main body further includes a measuring device which measures a hammering state of the hammering member and a control device which controls the number of rotations of the motor. The control device, according to measurement results of the measuring device, determines the limit number of times of hammering where the hammering member becomes unable to follow the reciprocating motion of the piston, and thus controls the number of rotations of the motor.

    摘要翻译: 锤击工具在其工具主体内包括通过使用电动机作为其驱动力往复运动的活塞,与活塞的往复运动连动的锤击操作的锤击构件和传递 锤击构件对安装在工具主体顶端上的顶端工具的锤击力。 工具主体还包括测量锤击构件的锤击状态的测量装置和控制马达的转数的控制装置。 根据测量装置的测量结果,控制装置确定锤击部件不能跟随活塞的往复运动的限制次数,从而控制电动机的转数。

    Apparatus for detecting a distance and apparatus for detecting a body
    8.
    发明申请
    Apparatus for detecting a distance and apparatus for detecting a body 有权
    用于检测距离的装置和用于检测身体的装置

    公开(公告)号:US20050135190A1

    公开(公告)日:2005-06-23

    申请号:US11005020

    申请日:2004-12-07

    CPC分类号: G01S7/5273 G01S15/104

    摘要: In an apparatus for detecting a distance and improving the SN ratio of received signals, an angular frequency (ω1) of sinusoidal wave signals generated by a sinusoidal wave generator is brought into synchronism with an angular frequency (ω) of burst pulse signals, and signals received by a transmitter/receiver microphone are orthogonally demodulated by using sinusoidal wave signals of the synchronized angular frequency. A microcomputer adds up the vectors of the demodulated signals for only a period of time equal to a section of transmitting the transmission waves from the transmitter/receiver microphone. A distance to a body is detected by using the received signals of which the vectors are added up.

    摘要翻译: 在用于检测距离和提高接收信号的SN比的装置中,由正弦波发生器产生的正弦波信号的角频率(ω-1> 1)与角频率(ω ),并且由发射机/接收机麦克风接收的信号通过使用同步角频率的正弦波信号进行正交解调。 微计算机将解调信号的向量仅与传送来自发射机/接收机麦克风的传输波段的一段时间相加。 通过使用向量相加的接收信号来检测到身体的距离。