| 摘要 |
PURPOSE: A control device for a gap between rails with a hydraulic jack is provided to prevent safety accident and to perform a work with small personnel by controlling a gap while a cylinder moves forwards and while the hydraulic jack is mounted on a holding unit. CONSTITUTION: A control device of a gap between rails with a hydraulic jack(40) comprises a first holding unit(10), a second holding unit(20), and the hydraulic jack. The first and second holding units are individually fixed to first and second rails(1,2) by a fixing unit(30). The hydraulic jack individually comprises a cylinder body(41) and a piston rod(42) on the first and second holding units. The piston rod moves forwards and pushes the second holding unit in order to move the second rail. The first and second holding units comprise a rail mounting unit, a fixing force generation unit, and a hydraulic jack holding unit. |
