JPS599959U - Load-sensitive brake fluid pressure control device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

FIG. 1 is a diagram illustrating the configuration of a hydraulic pressure control device for a vehicle braking device, which is an embodiment of the present invention. 2 is a side sectional view of the assisting device of FIG. 1. FIG. 3 and 4 are perspective views of essential parts showing other aspects of the rod shown in FIG. 1. 10... Mask cylinder, 20... Liquid pressure control valve, 2
6... Valve housing (housing), 30...
°Valve piston, 58...Spring lever (lever), 66...Vehicle height adjuster (hydraulic vehicle height adjustment device),
68...Vehicle height controller (hydraulic vehicle height adjustment device),
76... Assist device, 86... Tatsudo (output section). Correction 1984. 'IO, 14 The scope of claims for utility model registration is amended as follows. ◎ Scope of Utility Model Registration Claims In a vehicle equipped with a fluid-type vehicle height adjustment device, when the braking fluid pressure generated in the mask cylinder of the vehicle exceeds a predetermined pressure, the vehicle is moved in a direction that protrudes from within the housing. a valve piston that starts suppressing the braking fluid pressure supplied to the rear wheel brake of the vehicle; The other two points are connected to the vehicle body and the unsprung member, respectively, and the valve piston is moved to its non-acting position in response to relative displacement between the vehicle body and the unsprung member. A hydraulic pressure control device for a brake device, comprising a lever that applies a biasing force in the opposite direction, the hydraulic pressure control device comprising an output portion that engages with the lever, and receiving fluid pressure from the vehicle height adjustment device to control the vehicle. an assisting device that applies a biasing force to the valve piston in a direction toward a non-working position of the valve piston, which is substantially zero when the high adjustment device is not working, but increases as the fluid pressure increases; Despite changes in the live load of the vehicle, the suppression start pressure of the brake fluid pressure supplied to the rear wheel brakes is controlled in accordance with the live load of the vehicle, and the hydraulic vehicle height adjustment device A hydraulic pressure control device for a vehicle opening device, characterized in that when the lever is not activated, the suppression start pressure is controlled in the same way as when it is activated.

Claims (1)

[Scope of utility model registration request] In a vehicle equipped with a fluid-type vehicle height adjustment device that maintains the vehicle at a predetermined height by changing fluid pressure according to the vehicle's carrying load, the braking fluid pressure generated in the mask cylinder of the vehicle is set to a predetermined level. a valve piston that is moved in a direction to protrude from inside the housing and starts pushing and opening the brake fluid pressure supplied to the rear wheel brake of the vehicle when the pressure exceeds the pressure of the brake fluid; One of the three points separated in the direction is in contact with the protruding end of the valve piston, and the other two points are respectively connected to the vehicle body and the unsprung member, and the vehicle body and the unsprung member are connected to each other. A hydraulic pressure control device for a brake device, comprising a lever that applies a biasing force to the valve piston in a direction toward a non-acting position in response to a relative displacement between the valve piston and the valve piston, the hydraulic pressure control device comprising: and a biasing force in a direction toward a non-acting position of the valve piston, which is substantially zero when the vehicle is not loaded, but increases as the fluid pressure increases, in response to fluid pressure from the vehicle height adjustment device. includes an assisting device that applies the valve piston to the valve piston, and although the relative position between the vehicle body and the unsprung member is maintained by the action of the fluid vehicle height adjustment device, the load of the vehicle is The suppression start pressure of the brake fluid pressure supplied to the rear wheel brake is controlled accordingly, and
A hydraulic pressure control device for a vehicle braking device, characterized in that the suppression start pressure is controlled by the lever when the hydraulic vehicle height adjustment device is inactive.