B - Operations – Transporting – 60 – R
Patent
B - Operations, Transporting
60
R
293/2, 267/65
B60R 19/02 (2006.01)
Patent
CA 1307809
ABSTRACT A kind of automatic stretching bumper absorb shock system, which is designed on basis of the principle of oil-pressure transmitting the shocking force and absorbing by the gas. It primarily comprises oil tank, pump, oil filter, check valve, low oil-pressure alarming switch, cross connector, accumulator set, pressure relief valve, shut-off valve, solenoid valve, flow limit valve, actuators, and front/rear bumpers. By means of the said structure, it has formed a nonfixing status between front/rear bumpers and car body. At the moment when depress the brake pedal under emergency, solenoid valve thereby is controlled by micro-motion switch of brake under emergency condition, and it furtherly drives 4 stes of actuators and enables front/rear bumpers to extend out respectively before bump, until shocking caused by hitting the other car (or the article (s)), strong impetus of the said shocking will be transmitted into pump along with bumper, and enable hydraulic oil to flow back into accumulator set for absorbing shocking force in one respect, and in another respect, oil-pressure exceeding system setting pressure value will flow back to oil tank through puessure relief valve to reach the purpose of absorbing the shocking force completely as soon as car accident happened. It will be effective to reduce the damage of people and car to the minimum extent and provide high safety and highly practical values. (FIG 1) 16
587542
Robic
Yang Chin-Hun
LandOfFree
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