VEHICLE DOOR PNEUMATIC DRIVE WITH SLOTMAGNETICALLY SENSITIVE DEVICE AND ELECTRONIC ANTILOCK Russian patent published in 2007 - IPC B60J5/06 E05F15/06 

FIELD: transport engineering; buses and trolley-buses.

SUBSTANCE: invention relates to pneumatics and it can be used as control actuating mechanism of door wings to protect passengers from clamping and striking by door wings. Door pneumatic drive contains pneumatic cylinder 2 controlled by pneumatic distributor 1, door final position signaling device and emergency door opening device from saloon by passenger, and antilock system device to prevent clamping. Antilock device includes slot magnetically sensitive device 3 with movable steel rack 4 combining functions of tracing, door travel speed control and control of door position in motion with putting out of signal if obstacle appears. Antilock device is electronic device keeping in memory series of speeds on discrete sections of travel of movable steel rack 4 and comparing them with preceding data, sending of order to prevent clamping of passenger by door wings and putting out information on position of rack. Movable steel rack 4 has holes 5 to determine speed of its travel and both OPEN and CLOSED final positions.

EFFECT: improved reliability and functional capabilities of system determining final position of door wings and antilock system.

2 dwg