Invention Grant
US5480009A Brake system with two independent mechanical brakes 失效
制动系统具有两个独立的机械制动器

Brake system with two independent mechanical brakes
Abstract:
The device for braking an electric drive motor of a hand-held working tool has a safety brake for an immediate stopping of the working tool and an independent mechanical brake for coasting the working tool to a stop after switching off the drive motor. The mechanical brake acts on a rotational part connected to the drive motor and is activated when a switch element for activating the drive motor is released.
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