| 摘要 |
PURPOSE:To use all parts in common and thereby miniaturize a device in structure, by installing a hydraulic pressure reflux mechanism in each of cross piping type two-system hydraulic brakes as well as installing an accumulator, storing pressure oil flowing in a bypass route from a main route, in this mechanism. CONSTITUTION:Each pressure chamber of tandem master cylinders 2 is connected in cross type to each of wheel braking devices 7F, 7R', 7F' and 7R via main routes 3 and 3', each of gate valves 4F, 4R, 4F' and 4R', first valves 24F, 24R, 24F' and 24R', and output routes 5F, 5R, 5F' and 5R'. Likewise, a hydraulic pressure mechanism regulating brake oil pressure is bypassingly connected to an output system of the said main route. This hydraulic reflux mechanism is so structured as to be connected to the main route via second valves 38F, 38R, 38F' and 38R', routes 56FR, 56F' and 56R', reservoir mechanisms 58FR, 58F' and 58R', pump mechanism 66FR, 66F' and 66R', accumulators 73FR, 73F' and 73R' all connected to the output side of the said first valve, and each of the said gate valves. |
