To provide a tread brake device which can secure the following performance of brake shoes with respect to wheels which move accompanied by the steering of a wheel shaft, and can properly brake the wheels.SOLUTION: A tread brake device (3) comprises left and right brake shoes (31) and left and right brake cylinders (32). Each of the brake cylinders (32) has first and second cylinders (321, 322). The first cylinder (321) includes a first fluid chamber (321c). The first cylinder (321) is constituted so as to make the brake shoes (31) approximate treads of the wheels (12) by a rise of the pressure of the first fluid chamber (321c). The second cylinder (322) includes a second fluid chamber (322c). The second cylinder (322) is constituted so that, when the brake shoes (31) contact with the treads, forces from the brake shoes (31) are applied on the second fluid chambers (322c). The second fluid chambers (322c) of the left and right brake cylinders (32) communicate with each other.SELECTED DRAWING: Figure 3

    【課題】輪軸の操舵に伴って移動する車輪に対する制輪子の追従性を確保し、車輪の適切な制動を行うことができる踏面ブレーキ装置を提供する。【解決手段】踏面ブレーキ装置(3)は、左右の制輪子(31)及び左右のブレーキシリンダ(32)を備える。各ブレーキシリンダ(32)は、第1及び第2シリンダ(321,322)を有する。第1シリンダ(321)は、第1流体室(321c)を含む。第1シリンダ(321)は、第1流体室(321c)の圧力の上昇によって制輪子(31)を車輪(12)の踏面に接近させるように構成されている。第2シリンダ(322)は、第2流体室(322c)を含む。第2シリンダ(322)は、制輪子(31)が踏面に接触したときに、この制輪子(31)からの力が第2流体室(322c)に作用するように構成されている。左右のブレーキシリンダ(32)の第2流体室(322c)同士は連通している。【選択図】図3


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    Title :

    TREAD BRAKE DEVICE AND BOGIE


    Additional title:

    踏面ブレーキ装置及び台車


    Contributors:

    Publication date :

    2021-12-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen / B61F Untergestelle für Schienenfahrzeuge, z.B. Fahrgestellrahmen, Drehgestelle oder Anordnungen der Radsätze , RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES / B61H Bremsen oder andere Verzögerungseinrichtungen ausgebildet für Schienenfahrzeuge , BRAKES OR OTHER RETARDING APPARATUS PECULIAR TO RAIL VEHICLES



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