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    • 36. 发明专利
    • PNEUMATIC BRAKE DEVICE FOR ROLLING STOCK
    • JPH0769204A
    • 1995-03-14
    • JP21990293
    • 1993-09-03
    • TOSHIBA CORP
    • YAMASHIRO YOSHIHARU
    • B60T13/36B60T17/18
    • PURPOSE:To enhance safety by providing brake cylinder pipes connected to a brake cylinder for feeding compressed air, while being separated into two systems of normal use and emergency use, and when pressure of the system on the side to which a brake command is imparted is not increased, by conducting braking through the other side system. CONSTITUTION:One end of a normal use brake cylinder pipe 17, of which the other end is connected to output of a normal use brake solenoid valve 8 and of which an intermediate part is provided with a pressure switch 23, is branched into two ways of 17a, 17b, which are respectively connected to inlet ports of air hoses 19a, 19b via cutout cocks 18a, 18b. Similarly, one end of an emergency use brake cylinder pipe 20, which is connected to an emergency use brake solenoid valve 9 and is provided with a pressure switch 25, is branched into two ways of 20a, 20b, which are respectively connected to inlet ports of air hoses 22a, 22b. The normal use and the emergency use brake systems are joined together by duplex check valves 24a, 24b, while outlet ports of the duplex check valves 24a, 24b are branched to four ways through piping and connected to respective brake cylinders 16a..., 16b... of bogies 15a, 15b.