Liquid pressure control device for load responding brake

Details Liquid pressure control device for load responding brake Liquid pressure control device for load responding brake

1995-05-10

1996-10-01

Butler, Douglas C.

Fluid-pressure and analogous brake systems

Load control

Detail

188195, 303 969, B60T 826, B60T 818, B60T 830

Patent

active

055606890

ABSTRACT:
An object of the present invention is to decrease the machining cost and to improve the productivity. A liquid pressure control device (21) for load responding brake comprises a valve mechanism (25), which is slidably disposed in a housing (22), for decreasing the liquid pressure of a master cylinder in a predetermined proportion and transmitting the liquid pressure to a rear wheel brake cylinder by the movement of a plunger (24) operated in response to the liquid pressure from the master cylinder; and a load sensing mechanism (27) in which a load depending on the movable load of a vehicle is applied to the plunger (24) so as to move the pressure decrease operation start point of the valve mechanism (25). The housing (22) is formed by cutting a long material (50) formed by extrusion or drawing to a predetermined length and then by machining the cut material (51).

REFERENCES:
patent: 3329471 (1967-07-01), Oberthur
patent: 3832007 (1974-08-01), Thrush
patent: 4111495 (1978-09-01), Peeples
patent: 4281880 (1981-08-01), Gaiser et al.

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