Abstract: The structure of the motor-operated umbrella is made to degrease rotation damage caused by a motor and to be light weight of the umbrella for using easily by a hand. A planetary gear mechanism consists of a sun gear, planetary gears and an internal gear that is arranged at border position between an upper middle shaft and a lower middle shaft, a lower end of a driving shaft inside the lower middle shaft is connecting to a motor rotating axle through a thrust bearing for transmitting a rotation of a motor, an upper end of the driving shaft is fixed to the sun gear, the outer cylinder is fitted with a cylindrical male thread is fixed to the internal gear, a male thread cover pipe is fitted with a supporting rib holder and an inner peripheral surface of the supporting rib holder is formed with a cylindrical female thread.

Abstract: The structure of the motor-operated umbrella is made to degrease rotation damage caused by a motor and to be light weight of the umbrella for using easily by a hand. A planetary gear mechanism consists of a sun gear, planetary gears and an internal gear that is arranged at border position between an upper middle shaft and a lower middle shaft, a lower end of a driving shaft inside the lower middle shaft is connecting to a motor rotating axle through a thrust bearing for transmitting a rotation of a motor, an upper end of the driving shaft is fixed to the sun gear, the outer cylinder is fitted with a cylinderical male thread is fixed to the internal gear, a male thread cover pipe is fitted with a supporting rib holder and an inner peripheral surface of the supporting rib holder is formed with a cylindrical female thread.

Abstract: The present invention relates to the compact multi socket capable of turning a plurality of bolts or nuts having different diameters by one tool. The outer socket A at the upper part is provided with the handle connecting hole 1, the installed inner socket C and the coil spring 26 installed between the outer socket A and the inner socket C so as to bias the inner socket in a direction for pushing out the inner socket from the outer socket A. The outer socket A, the polygonal sliding inner peripheral surface 4 having the large holding part 5 is formed from the opening part to a part near the intermediate part, the sliding inner peripheral surface 31 is formed at the intermediate part, and a ring sliding inner peripheral surface 17 is formed from a part near the intermediate part to the upper part.