| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To support large weight even if the power of a thrust generating section of an outrigger is small. <P>SOLUTION: When a cylinder rod 122 of an electric power cylinder 120 which is provided at a frame leg body 110 advances forward, an upper link 150a and a lower link 160a are spread from an inverted V-shaped form, and an upper lock 130 is pushed up and a landing block 140 is depressed downward. When the upper and lower links 150a and 160a have become a linear form in the vertical direction, the upper block 130 is engaged with a transmitting member 170, and the landing block 140 is landed on a traveling floor surface 200. Thus, a drag force which resists a load is not required to be supported by the electric power cylinder 120, and the drag force can be supported by the landing block 140, the upper and lower links 150a and 160a, the upper block 130, the transmitting member 170 and the frame leg body 110, and the supporting of the large weight becomes possible. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
