The present invention relates to a parking brake apparatus. The parking brake apparatus comprises: a bolt screw rotated by receiving a driving force from an actuator; pistons placed on both sides of the bolt screw; a screw nut accepted into the pistons, screwed with an end part of the bolt screw, and moved in interoperation with the rotation of the bolt screw; an elastic member placed on the circumference of the screw nut in the pistons, and pressing the pistons toward a shoe while being elastically transformed by receiving the displacement of the screw nut while the screw nut is moved by a set distance; and a load delivery part delivering the displacement of the screw nut solely to the pistons or pressing the pistons toward the shoe together with the elastic member when the screw nut is moved by more than the set distance. Therefore, the present invention is capable of increasing the durability of the elastic member, and reducing the load applied to the elastic member.

    본 발명은 주차 브레이크 장치에 관한 것으로, 액추에이터에서 구동력을 전달받아 회전되는 볼트스크류와, 볼트스크류의 양측에 배치되는 피스톤과, 피스톤의 내부에 수용되고, 볼트스크류의 단부에 나사체결되며, 볼트스크류의 회전에 연동하여 이동되는 스크류너트와, 피스톤의 내부에서 스크류너트의 둘레에 배치되고, 스크류너트가 설정거리만큼 이동되는 동안 스크류너트의 변위를 전달받아 탄성변형되며 피스톤을 슈측으로 가압하는 탄성부재와, 스크류너트가 설정거리를 초과하여 이동 시 스크류너트의 변위를 단독으로 피스톤에 전달하거나 탄성부재와 함께 피스톤을 슈측으로 가압하는 하중전달부를 포함하는 것을 특징으로 한다.


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    Titel :

    PARKING BRAKE APPARATUS


    Weitere Titelangaben:

    주차 브레이크 장치


    Beteiligte:
    JO CHI HOON (Autor:in) / KIM BYUNG SU (Autor:in)

    Erscheinungsdatum :

    24.03.2021


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

    IPC:    F16H Getriebe , GEARING / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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