To provide a drum brake structure suitable for preventing inconvenience due to deposits onto a wheel inner peripheral surface, in which an electric actuator for electric parking brake is provided in such a posture as to project to the radially outer side of a drum brake.SOLUTION: In a drum brake structure A10 provided on a back plate 11 of a drum brake 1 with an electric actuator 2 for electric parking brake projecting to the radially outer side of the drum brake 1, a protective member 3 attached to a stationary member of the drum brake 1 is arranged in an annular space S1 between a virtual space around an axle 5 passing through a tip part 2a farthest from the axle in the electric actuator 2 and a wheel inner peripheral surface 40a facing the tip part 2a of the electric actuator 2.SELECTED DRAWING: Figure 2

    【課題】ドラムブレーキの径方向外側に突出する姿勢で電動パーキングブレーキ用の電動アクチュエータを設けた構造において、ホイール内周面への堆積物による不都合を防止するのに適したドラムブレーキ構造を提供すること。【解決手段】電動パーキングブレーキ用の電動アクチュエータ2をドラムブレーキ1の径方向外側に突出する姿勢でドラムブレーキ1のバックプレート11に設けたドラムブレーキ構造A10において、電動アクチュエータ2において車軸から最も離れた先端部2aを通る車軸5周りの仮想円と、電動アクチュエータ2の先端部2aに対向するホイール内周面40aとの間の環状空間S1には、ドラムブレーキ1の静止部材に取り付けられた保護部材3が配置される。【選択図】図2


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    Title :

    DRUM BRAKE STRUCTURE


    Additional title:

    ドラムブレーキ構造


    Contributors:

    Publication date :

    2020-01-16


    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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