| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable not only to perform a prescribed plumbing adjustment, but also to reduce weight and enhance durability as far as possible. <P>SOLUTION: A frame F, which includes a lower erection piece E1 provided at an upper end of an existing lower pillar body P1 and an upper erection piece E2 provided at a lower end of a new upper pillar body P2, is vertically movable in an axial direction of the frame F for the lower erection piece E1 by a screwing operation at a fixing bolt 7 which is screwed in the lower end 3; a hydraulic jack J provided at the upper end of the frame F has a rod body 22 to contact to the upper end of the upper erection piece E2 at a lower end of the hydraulic jack; the rod body 22 lowers the upper erection piece E2 toward the lower erection piece E1 when the rod body is projected during extension, enabling to lower the upper pillar body P2 for the lower pillar body P1. <P>COPYRIGHT: (C)2012,JPO&INPIT |
