| 摘要 |
A hydraulically actuated braking system to enable the interconnecting of a driven and a towed vehicle, whereby the hydraulic fluid conduit of the driven vehicle is connected in fluid communication to a cylinder-plunger assembly by a flexible conduit, which cylinder-plunger assembly may be connected in end to end relation with an auxiliary master cylinder mounted on the towed vehicle. The auxiliary master cylinder is connected in fluid communication with the hydraulic fluid conduit system which leads to the brakes of the towed vehicle, and, by closing a valve intermediate the conduit system and the normal master cylinder of the towed vehicle, and opening a valve in a conduit intermediate the auxiliary master cylinder and the hydraulic fluid conduit system of the towed vehicle, mechanical force may be applied by the plunger of the hydraulic fluid cylinder-plunger assembly to the auxiliary master cylinder. The cylinder-plunger assembly is connected in fluid communication with the hydraulic fluid brake system of the driven vehicle, and the driven vehicle and the towed vehicle may be accurately controlled simultaneously by the application of the brake pedal of the driven vehicle. Provision is made to close a valve in a conduit intermediate the auxiliary cylinder and the conduit system of the towed vehicle, and opening a valve in the conduit leading from the original master cylinder to the conduit system of the towed vehicle, to enable the towed vehicle to be used in the same manner as if the auxiliary hydraulic cylinder arrangement was not installed thereon. It is to be pointed out that the separation of the hydraulic cylinder-plunger assembly from the auxiliary master cylinder may be accomplished without loss of hydraulic fluid.
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