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POWER HAND TOOL

  • US 20090038815A1
  • Filed: 10/26/2007
  • Published: 02/12/2009
  • Est. Priority Date: 08/07/2007
  • Status: Abandoned Application
First Claim
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1. A power hand tool comprising:

  • a Li-battery set;

    an electric power storage device electrically connected in parallel to said Li-battery set;

    a motor, said motor having an output shaft;

    a power switch electrically connected between said motor and said electric power storage device and operable to switch on/off electric connection between said motor and said electric power storage device;

    a speed reducing gear set coupled to said output shaft of said motor; and

    an impact mechanism movable in a predetermined direction by said speed reducing gear set;

    wherein when said power switch is switched on to electrically connect said electric power storage device to said motor, said motor is started to rotate said output shaft and said speed reducing gear set, causing said speed reducing gear set to move said impact mechanism and to further provide an impact force.

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