Drum brake device having leading/trailing mode and duo servo mode
    2.
    发明授权
    Drum brake device having leading/trailing mode and duo servo mode 失效
    具有前进/后退模式和二重伺服模式的鼓式制动装置

    公开(公告)号:US6119833A

    公开(公告)日:2000-09-19

    申请号:US301463

    申请日:1999-04-29

    IPC分类号: F16D51/24 F16D51/50 F16D51/00

    CPC分类号: F16D51/50 F16D51/24

    摘要: Disclosed is a drum brake device in which during a service brake application, a pair of brake shoes operates in a leading/trailing mode, and during a parking brake application, a parking brake mechanism operates to cause the brake shoes to operate in the duo servo mode. A first lever, an equalizer and a second lever, which make up the parking brake mechanism, are all assembled onto one of the brake shoes. The second lever includes an input portion, a lever contact portion and an equalizer contact portion. The input portion receives a force from a parking lever. The lever contact portion applies a turning force to the first lever. The equalizer contact portion applies a turning force to the equalizer. The second lever, when it is turned, turns the first lever and then the equalizer.

    摘要翻译: 公开了一种鼓式制动装置,其中在行驶制动应用期间,一对制动蹄以前进/后退模式操作,并且在驻车制动应用期间,驻车制动机构操作以使制动蹄在二重奏伺服 模式。 构成驻车制动机构的第一杆,均衡器和第二杆都组装在其中一个制动蹄上。 第二杆包括输入部分,杠杆接触部分和均衡器接触部分。 输入部分接收来自驻车杆的力。 杠杆接触部分向第一杠杆施加转动力。 均衡器接触部分向均衡器施加转动力。 第二个杠杆当转动时,转动第一个杠杆,然后转动均衡器。