| 20110061698 | ELECTRIC TELESCOPIC STICK - There is provided an electric telescopic stick of which length can be easily adjusted quickly if needed by using only one hand by providing a multiple thread screw and providing a switch on an anterior portion of a grip portion including an electric motor which rotates the multiple thread screw in the forward and reverse directions. Further, in the electric telescopic stick, since a clutch is formed between the electric motor and the multiple thread screw, overload is not applied to the motor because the clutch idles when the movable stick portion is completely elongated. Further, a user can recognize the idling state from hitting sounds generated when steel balls are hit against holes when the clutch idles. | 03-17-2011 |
