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    • 26. 发明专利
    • EMERGENCY STOP DEVICE OF MOBILE CARRIAGE
    • JPH07232636A
    • 1995-09-05
    • JP5137894
    • 1994-02-23
    • YASKAWA ELECTRIC CORP
    • SHIMIZU KEI
    • B60T13/10B60T17/20G05D1/02
    • PURPOSE:To dispense with a brake release current and surely stop a wheel by maintaining respective positions of a push rod when contact of the power source side to the motor side is opened and mechanical brake is actuated, and when contact of the power source side to the motor side is closed and mechanical brake is released. CONSTITUTION:In the case of emergency stop of a mobile carriage, contacts 13, 14 connecting the power source 22 side to the motor 2 side are opened by pushing a push rod 12 by a prescribed stroke, the power source of the motor 2 is cut off and simultaneously the push rod 12 is displaced by a prescribed stroke, and mechanical brake is actuated by the displacement so as to brake the motor 2. At this time, the push rod 12 is fixed by a rod fixing means 16 on the position displaced from the contact position of the contacts 13, 14 by the prescribed stroke, namely, on the position where oil pressure brake 4 is actuated, hence the brake 4 is maintained in the working condition although a hand is detached from a button 15, and the mobile carriage can be kept to be stopped.