Being lock control manner of the point which turns the Y-globe type crank of the switch-and-lock movement by the stroke which it is generated to the point lock control manner of the electric switching

摘要

PROBLEM TO BE SOLVED: To ensure opposite locking in reverse conversion of a point.;SOLUTION: When a Y shape crank of a conversion locking unit is turned by stroke generated on an electric switching machine to convert the point from the fixed position to the reverse position, opposite locking failure by deviation of a turned angle of the Y shape crank is compensated. In the state that a spring pressure is applied to an offset link 9 for connecting the electric switching machine 4 and the conversion locking unit 3, the stroke is made variable over a constant range, and difference of the stroke required for converting the point from the fixed position to the reverse position and opposite-locking it is absorbed in a variable range of the stroke of the offset link 9.;COPYRIGHT: (C)2009,JPO&INPIT