To provide a front rod connection stick which is suitable for using in a railroad switch that has a changeover impossibility preventing device to avoid falling into the condition that the changeover of the switch is impossible because of the temperature change in installation environment.SOLUTION: In a front rod connection stick which comprises a temperature detecting means (26) and a control means (30) to control the electric current of a heater installed in the front rod connection stick (18) of the railroad switch based on the detected signal from the temperature detecting means and constitutes a railroad switch that has a changeover impossibility preventing device suppressing the expansion and contraction of the stick by keeping the temperature of the stick almost constant, two grooves created on the outer surface in the axial direction, two pipes installed in the grooves respectively and a piece of continuous conductor wire which is inserted through the pipes to form an U-shape coil constitute the heater.SELECTED DRAWING: Figure 3

    【課題】設置環境の温度変化に伴い転てつ機が転換不能に陥るのを防止するための転換不能防止装置を有する転てつ機に使用して好適なフロントロッド接続かんを提供する。【解決手段】所定箇所の温度を検出する温度検出手段(26)と、温度検出手段からの検出信号に基づいて転てつ機のフロントロッド接続かん(18)に設けられたヒーターに流す電流を制御する制御手段(30)とを備え、前記フロントロッド接続かんの温度をほぼ一定に維持して当該フロントロッド接続かんの伸縮を抑制する転換不能防止装置を有する転てつ機を構成するフロントロッド接続かんにおいて、外面に軸方向に沿った2本の溝が形成され、前記2本の溝内にパイプがそれぞれ配設され、連続した1本の導線が、前記パイプ内にコイルを形成するように挿通されているように構成した。【選択図】図3


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    Title :

    FRONT ROD CONNECTION STICK OF RAILROAD SWITCH


    Additional title:

    転てつ機のフロントロッド接続かん


    Contributors:

    Publication date :

    2019-01-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC



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