| 摘要 |
In a drum brake, a damper spring is provided for transmitting a shoe operating force outputted from a power lever to an input lever and for absorbing an impact force transmitted from brake shoes to the power lever via a link mechanism. The damper spring is mounted between the power lever driven by an electric motor of an operating force producing mechanism and the input lever of the link mechanism for receiving the shoe operating force outputted from the power lever for driving the shoes.
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