PROBLEM TO BE SOLVED: To provide an electric drum brake for suppressing that a brake cable is pulled by excess tension by suppressing variation between an upper limit value and a lower limit value of tension of the brake cable when braking force is generated in comparison with a conventional manner.SOLUTION: In a tension increasing rate suppression device 86, variation between an upper limit value and a lower limit value of cable pulling force F of a brake cable 54 is suppressed in comparison with a conventional manner when braking force is generated since a spring 84 is elastically deformed and an increasing rate of the cable pulling force F is suppressed when the cable pulling force F becomes larger than a predetermined value F1. In addition, it is suppressed that the brake cable 54 is pulled by excess cable pulling force F in comparison with the conventional manner since the upper limit value of the cable pulling force F when the braking force is generated becomes lower by a fact that the variation between the upper limit value and the lower limit value of the cable pulling force F is suppressed in comparison with the conventional manner.SELECTED DRAWING: Figure 4

    【課題】従来に比較して、制動力を発生させる時におけるブレーキケーブルの張力の上限値と下限値とのばらつきを抑制させ、ブレーキケーブルが過剰な張力で引っ張られることを抑制する電動式ドラムブレーキを提供する。【解決手段】張力増加率抑制装置86では、ブレーキケーブル54のケーブル引き力Fが所定値F1より大きくなるとスプリング84が弾性変形させられてケーブル引き力Fの増加率が抑制させられるので、制動力を発生させる時にケーブル引き力Fの上限値と下限値とのばらつきが従来に比べ抑制させられる。また、ケーブル引き力Fの上限値と下限値とのばらつきが従来に比べて抑制させられることによって、制動力を発生させる時のケーブル引き力Fの上限値が低くなるので、ブレーキケーブル54が従来に比較して過剰なケーブル引き力Fで引っ張られることが抑制される。【選択図】図4


    Access

    Download


    Export, share and cite



    Title :

    ELECTRIC DRUM BRAKE


    Additional title:

    電動式ドラムブレーキ


    Contributors:

    Publication date :

    2016-12-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

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



    ELECTRIC DRUM BRAKE

    ASAI KAZUHIRO / URADE MASAKI / NAKADA YOHEI | European Patent Office | 2017

    Free access

    ELECTRIC DRUM BRAKE

    SHINTANI SATORU / ABE SEIJI | European Patent Office | 2018

    Free access

    ELECTRIC DRUM BRAKE

    SHINTANI SATORU / ABE SEIJI | European Patent Office | 2018

    Free access

    ELECTRIC DRUM BRAKE

    SHINTANI SATORU / MORI KOJI / AKISHIRO KENICHI et al. | European Patent Office | 2018

    Free access

    ELECTRIC-TYPE DRUM BRAKE

    SHINTANI SATORU / MORI KOJI / MYOJO KENICHI et al. | European Patent Office | 2018

    Free access