Vehicle fenders – Buffer or bumper type – Having fluid means within impact means to absorb energy
Patent
1979-08-21
1982-10-05
Peters, Jr., Joseph F.
Vehicle fenders
Buffer or bumper type
Having fluid means within impact means to absorb energy
188303, 188376, 293134, B60R 1906
Patent
active
043525148
DESCRIPTION:
BRIEF SUMMARY
DESCRIPTION
1. Technical Field
This invention relates to a shock absorbing or shock damping device for absorbing or damping a shock, which occurs, for example, in the case of a collision of vehicles, by discharging the shock energy out of the device.
2. Background Art
A known shock absorbing or damping device used for, for example, an automobile, absorbs the shock inside the device to damp or disperse the shock and, accordingly, the total shock energy in the automobile is not decreased. That is, the shock applied to a portion of the automobile can be temporalily damped, but the damped shock energy must be always absorbed by another portion of the automobile.
DISCLOSURE OF INVENTION
The object of the invention is to provide an outside absorption type of a new shock absorbing device which is quite different from the above mentioned inside absorption type of a shock absorbing device. That is, according to the invention, the shock is not absorbed in the device but is discharged out of the device. In the shock absorbing device according to the invention, each of a pair of fluid containers interconnected by a restriction passage is provided with a piston which is slidably mounted to the respective fluid container, in a fluid-tight fashion, in such a way that one end of each of the pistons is projected outwards from the respective fluid container. In the restriction passage is arranged a closure valve which can be broken when a fluid pressure of a predetermined value acts on the closure valve. As a result, when a shock is applied to the outer end of one of the pistons, the compression pressure of the fluid in the corresponding fluid container causes the closure valve to be broken to project the piston outward of the other fluid container by means of the fluid in the latter, thereby to release the shock outside the device.
Furthermore, according to the invention, there is provided a safety device for transporting means to which the above mentioned type of shock absorbing device is mounted. The transporting means comprises a front portion and a rear portion which are constructed by parts separated from the body of the transporting means and which are movably mounted to the transporting means body with a predetermined gas therebetween, provided for the displacement of the above-mentioned portions of the means. The outer ends of the pistons are connected to the separate front portion and rear portion, respectively.
BRIEF EXPLANATION OF DRAWINGS
FIG. 1 is an illustration of a principal construction of a shock absorbing device according to the invention;
FIG. 2 is a side view of an illustration of an automobile to which is mounted the shock absorbing device illustrated in FIG. 1.
BEST MODE FOR CARRYING OUT THE INVENTION
The invention will be discussed below with reference to the accompanying drawings. FIG. 1 illustrates a principle of a shock absorbing device according to the invention, which includes a pair of containers 1A and 1B. The containers 1A and 1B are, for example, in the form of generally cylindrical sealed containers in which a gas, a liquid or a mixture of a gas and a liquid is contained. The fluid to be contained in the containers 1A and 1B is preferably an incombustible fluid when the device illustrated in FIG. 1 is used as a vehicle safety device. The containers 1A and 1B are connected to each other by means of a restriction passage 5, in which a closure valve 7 is arranged. The closure valve 7 is, for example, comprised of a diaphragm or a membrane of a synthetic resin and is broken when a fluid pressure of a predetermined value is applied to the valve. That is, the containers 1A and 1B are normally separated from one another by means of the closure valve 7 and can be communicated with one another by means of the restriction passage 5 only when the valve 7 is broken. The containers 1A and 1B are provided with cylinder portions 2A and 2B, in which pistons 3A and 3B are slidably mounted in a fluid-tight fashion by means of piston rings (not shown) or any other seal members, respectively. The ou
REFERENCES:
patent: 1723508 (1929-08-01), Hansen
patent: 3097725 (1963-07-01), Peterson
patent: 3362742 (1968-01-01), Sanderson
patent: 3797872 (1974-03-01), Watanabe et al.
patent: 3837695 (1974-09-01), Haase et al.
patent: 3927901 (1975-12-01), Weman
patent: 4176858 (1979-12-01), Kornhauser
Firster Corporation Limited
Peters Jr. Joseph F.
Weaver Ross
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