| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a portal crane which enables usage of a portal crane of size matching breadth in a work area even if an assembling area is narrow. <P>SOLUTION: The portal carne 1 is provided, in which a pair of leg parts, and a girder 20 spanning between the pair of the leg parts are provided, the pair of leg parts 10A, 10B is placed on a pair of rails L, respectively, and is able to travel on the pair of rails L, and a suspended member 30 is provided to the girder 20, and which is portal-shaped when viewed from the front. In the girder 20, a slide mechanism is provided which makes at least either of the pair of leg parts 10A, 10B slidable along the girder 20, and the slide mechanism characteristically has a guide rail 21 which guides along the extended direction of the girder 20 while the slide leg part 10A as a slide target is suspended which is at least either of the pair of the leg parts 10A, 10B. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
