To provide a drum brake capable of detecting an abrasion state of a brake lining with high accuracy while reducing a running cost.SOLUTION: A drum brake comprises an abrasion detection device 7 that has: a rotation sensor 72 that detects a rotation amount of a sleeve 55 around an axial direction; a rotation speed calculation unit 76 that integrates and stores the rotation speed of the sleeve 55 based on the rotation amount detected by the rotation sensor 72; and an abrasion determination unit 77 that detects the abrasion of a brake lining based on the rotation speed of the sleeve 55 calculated by the rotation speed calculation unit 76.SELECTED DRAWING: Figure 6

    【課題】ランニングコストを低減しつつ、ブレーキライニングの摩耗状態を高精度に検出することのできるドラムブレーキを提供する。【解決手段】ドラムブレーキは、スリーブ55の軸方向回りの回転量を検出する回転センサ72と、回転センサ72により検出される回転量に基づきスリーブ55の回転数を積算して記憶する回転数演算部76と、回転数演算部76により算出されたスリーブ55の回転数に基づきブレーキライニングの摩耗を検出する摩耗判定部77とを有する摩耗検出装置7を備えて構成される。【選択図】図6


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    Title :

    DRUM BRAKE


    Additional title:

    ドラムブレーキ


    Contributors:

    Publication date :

    2021-09-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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