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    • 82. 发明申请
    • Power hand tool
    • 电动手工具
    • US20070246238A1
    • 2007-10-25
    • US11484662
    • 2006-07-12
    • Ming-Hung Hsu
    • Ming-Hung Hsu
    • E21B17/22
    • B25B23/141B25B23/147
    • A power hand tool includes a housing, a motor mounted inside the housing, a transmission member coupled to the motor, a driven member, which has grooves on one side thereof facing the transmission member, a plurality of steel balls respectively mounted in the grooves of the driven member, a plurality of spring members respectively mounted in the transmission member and stopped at the steel balls for enabling the driven member to be rotated by the transmission member upon operation of the motor, and a tool bit adaptor fastened to the driven member. When the driven member receives a heavy reaction force through the tool bit adaptor, the steel balls can be disengaged from the grooves, thereby causing disconnection of the transmission member from the driven member so that the power hand tool runs idle to prevent
    • 电动手动工具包括壳体,安装在壳体内部的电动机,耦合到电动机的传动构件,从动构件,其一侧面向传动构件的槽,多个钢球分别安装在 从动构件,分别安装在传动构件中并停止在钢球上的多个弹簧构件,用于使驱动构件在马达操作时由传动构件旋转,以及固定到从动构件的工具钻头适配器。 当从动构件通过工具头适配器受到重的反作用力时,钢球可以与槽脱离,从而导致传动构件与被驱动构件断开,使得动力手动工具空转以防止
    • 84. 发明申请
    • Overvoltage-protective automotive power generation control circuit
    • 过电压保护汽车发电控制电路
    • US20070165341A1
    • 2007-07-19
    • US11332350
    • 2006-01-17
    • Chen-Ku Wei
    • Chen-Ku Wei
    • H02H7/06
    • H02H3/202H02H7/18
    • An overvoltage-protective automotive power generation control circuit that is adapted for electrical connection with a field coil of an automotive power generator includes a voltage detecting circuit electrically connected with a battery-based power source mounted in a car for generating a predetermined partial voltage with respect to the battery-based power source; a driving element having a gate terminal electrically connected with the voltage detecting circuit and two conduction terminals one of which is grounded; and an opening element serially connected with the field coil of the automotive power generator and electrically connected with the other conduction terminal for open circuit upon activation and closed circuit of the driving element. Thus, the battery-based power source is prevented from overcharge and overvoltage to further prevent electronic apparatuses mounted in the car from damage incurred by the overvoltage.
    • 适用于与汽车发电机的励磁线圈电气连接的过电压保护用汽车发电控制电路,具有电压检测电路,电压检测电路与安装在轿厢中的基于电池的电源电连接,以相对于 以电池为基础的电源; 驱动元件,具有与电压检测电路电连接的栅极端子和两个导通端子,其中一个接地; 以及与所述汽车发电机的励磁线圈串联连接的开启元件,并且在所述驱动元件的启动和闭合电路时与用于开路的另一个导通端子电连接。 因此,防止了基于电池的电源的过充电和过电压,从而进一步防止安装在汽车中的电子装置免受过电压的损害。
    • 90. 发明授权
    • Positionable power screwdriver
    • 定位电动螺丝刀
    • US07024966B2
    • 2006-04-11
    • US09908647
    • 2001-07-20
    • Shenq Ruey Chao
    • Shenq Ruey Chao
    • B25B17/00
    • B25F5/02B25B21/00Y10T16/50
    • A positionable screwdriver includes a first housing member, a second housing member pivotally connected with the first housing member, and a positionable mechanism arranged between the first and second housing members. The positionable mechanism has a locking button, a leaf spring, a positioning block, a retaining member, and a spring. The positioning block is formed with a plurality of radial teeth and fixed to the first and second housing members. The locking button is arranged within the second housing member and positioned over the leaf spring. A top of the locking button is provided with a raised portion extending upwardly through an opening of the second housing member. The spring has an end bearing against another end of the locking button so as to keep the locking button positioned over the leaf spring, thereby keeping engagement between the leaf button and the positioning block.
    • 一种可定位的螺丝刀包括第一壳体构件,与第一壳体构件枢转地连接的第二壳体构件以及布置在第一和第二壳体构件之间的可定位机构。 可定位机构具有锁定按钮,板簧,定位块,保持构件和弹簧。 定位块形成有多个径向齿并固定到第一和第二壳体构件。 锁定按钮布置在第二壳体构件内并且定位在板簧上方。 锁定按钮的顶部设置有向上延伸穿过第二壳体构件的开口的凸起部分。 弹簧具有抵靠锁定按钮的另一端的端部轴承,以便将锁定按钮定位在板簧上方,从而保持叶片按钮和定位块之间的接合。