PROBLEM TO BE SOLVED: To provide a locking mechanism for a spring switch capable of minimizing the effect of an operation of a locking mechanism given to a conversion load.SOLUTION: A locking mechanism for a spring switch comprises: a locking cam rotatable around an axis; a locking rod for preventing a tip of a tongue rail from opening; and a checking rod engaged with the locking rod to check the state of the locking rod. The checking rod has a rotation preventing member for preventing the locking cam from rotating. The locking cam has a sliding member which is always engaged with the locking rod and, together with the locking rod movement in the direction of locking or releasing, moves perpendicularly to the direction of the locking rod movement, and also the locking cam has a rotation prevented member. When the checking rod is in a prescribed positional relation with the locking rod, the rotation prevented member comes in contact with the rotation preventing member and prevents the locking cam from rotating. When the checking rod is not in the prescribed positional relation with the locking rod, the rotation prevented member does not come in contact with the rotation preventing member and allows the locking cam to rotate.SELECTED DRAWING: Figure 8

    【課題】鎖錠機構の動作が転換負荷に与える影響を最小限とすることができる転てつ機用鎖錠機構を提供する。【解決手段】転てつ機用鎖錠機構は、軸を中心に回転可能な鎖錠カムと、トングレールの先端開口を防止するための鎖錠かんと、鎖錠かんと係合して鎖錠かんの状態を照査する照査かんとを有する。照査かんには鎖錠カムの回転を阻止するための回転阻止部材が設けられ、鎖錠カムには鎖錠かんに常に係合して鎖錠かんの鎖錠・解錠方向の移動と連動して鎖錠かんの前記移動方向と直角な方向に動く摺動部材が設けられ、鎖錠カムには回転被阻止部材が設けられている。その回転被阻止部材は照査かんが鎖錠かんに対して所定の位置関係にある間は回転阻止部材と当接して鎖錠カムの回転を阻止し、照査かんが鎖錠かんに対して所定の位置関係にない間は回転阻止部材と当接せず、鎖錠カムの回転を許容するようにした。【選択図】図8


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    Title :

    LOCKING MECHANISM FOR SPRING SWITCH


    Additional title:

    発条転てつ機用鎖錠機構


    Contributors:

    Publication date :

    2018-06-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC / E01B PERMANENT WAY , Gleisoberbau



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