| 摘要 |
PROBLEM TO BE SOLVED: To provide a switch lubricator capable of varying a reaction force so that, even if the width of the bottom of a movable rail is small, the reaction force is either approximately constant or increases or decreases at a slow rate with respect to the displacement of a point of application where an applied force works at the time of rail change. SOLUTION: The switch lubricator includes a microdisplacement constant pressure mechanism for varying the reaction force at the point of application so that it is either approximately constant or increases or decreases at a slow rate with respect to the displacement of the point of application. A movable rail rolling support mechanism has a plurality of rollers 14 and 15 built in for causing rolling of a tongue rail T when the tongue rail T is changed. When displaced vertically by the operation of the constant pressure mechanism, the plurality of rollers 14 and 15 move vertically at the same height.
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