JPS5939257U - Brake hydraulic pressure control device for vehicles with vehicle height adjustment 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 schematic diagram showing a hydraulic pressure control device, which is an embodiment of the present invention, together with a vehicle height adjustment device. FIG. 2 is a front sectional view showing the main parts of the hydraulic pressure control device. FIG. 3 is a plan view of an air cylinder used in the hydraulic pressure control device. FIG. 4 is a front view of the main part of the bracket used in the above-mentioned hydraulic pressure control device. 2: Master cylinder, 20: Rear wheel brake, 22: Proportioning valve (hydraulic pressure control valve), 24°32 nib bracket, 26: Load sensing lever, 28: Air cylinder (compensation device), 40: Piping, 42: vehicle height adjustment device,
44: Controller, 46 Two vehicle height adjusters, 66, 86
: Housing, 68: Valve piston, 74: Open/close valve,
76: Coil spring, 94: Bifurcated part, 96: Flange, 98: Retaining ring, 104: Piston, 108: Action part, 112: Head pin, 116: Bolt, 118, 120
: Long hole.

Claims (1)

[Scope of Claim for Utility Model Registration] In a hydraulic brake system for a vehicle equipped with a hydraulic vehicle height adjustment device, a device for controlling brake fluid pressure transmitted from a mask cylinder to a rear wheel brake, comprising: a first housing; a valve piston that is movably disposed in the first housing in the axial direction and has one end exposed outside the first housing, and is opened and closed by the axial movement of the valve piston to connect the mask cylinder and the rear end; The mask includes an on-off valve that communicates or blocks off a fluid passage connecting to the wheel brake, and a spring that urges the valve piston inward to the first housing to keep the on-off valve open at all times. a hydraulic pressure control valve that reduces hydraulic pressure in the cylinder when it rises above a predetermined value and transmits the pressure to the rear wheel brake; and a hydraulic control valve that is fixed to a sprung member of the vehicle and adjusts the vertical position of the first housing. an elongate member rotatably retained by the bracket in a substantially vertical plane, the elongate member being rotatably retained by the bracket at an exposed end of the valve piston at one of two longitudinally spaced locations; on the other hand, a load sensing lever that is held directly or indirectly to an unsprung member of the vehicle and applies a load to the valve piston corresponding to the load of the vehicle; a fluid pressure chamber communicated with a fluid passage;
a second housing disposed on the opposite side of the housing and fixed to the first housing; and a second housing provided within the second housing and actuated by the pressure within the fluid pressure chamber, and the actuating force is applied to the live load. and a compensating device that includes a compensating piston that is applied to the valve piston with or without a sensing lever, and that cancels a variation in the load of the payload sensing lever on the valve piston that occurs when the vehicle height adjusting device is actuated. A vehicle brake fluid pressure control device with a vehicle height adjustment device.