To provide a telescopic type tower which can reach the height of a high-rising building with cross links being surely and powerfully extended by maintaining a large area within the frame of each extensible body arrayed in a frame while combining the cross links in a frame.
The telescopic type tower 1 has extensible frame bodies 10 each of which advances or retracts movable links 2B on both sides of a central part link 2A through a ball screw 8 to make a link 2 freely extend or reduce while a rotary wing 30 is so arranged at the top part of each extesible frame body as to apply a lift in the direction of causing the extensible frame body to extend. The ball screw 8 is turned to make the links forming each extensible frame body extend simultaneously and this enables the extending force of the extensible frame body with the rotary wing to be cooperated with that by the simultaneous extension of the links to make the extesible frame bodies extend together, thereby making the tower 1 telescopic while maintaining the area within the frame of each extesible frame body.
OHASHI KENGO
TANIDA KIYOMI
TANIDA KEIKO
OHASHI KENGO
TANIDA KIYOMI
TANIDA KEIKO
Shinichi Nakajima
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