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| Method for restraining vibration of a building and structure therefor |
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| Thermoplastic cover for stadium seating, picnic tables, boat docks and the like |
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| Coupling formation for the interfitting of structural elements |
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| Auxiliary support mechanism for an automotive hoist |
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Deformable impact absorbing device for vehicles
| Details |
Inventors: Hirano, Tomoyuki; Yamanaka, Akira; Tonai, Koichi;
Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha (Tokyo, JP)
Primary Examiner: Butler; Douglas C.
Assistant Examiner:
Attorney, Agent or Firm: Oldham, Oldham, Hudak & Weber Co.
An impact absorbing device comprising a hollow polyhedral body formed with a plurality of elongated cutouts in each of its side walls. These cutouts extend in parallel relation in a direction substantially orthogonal with respect to the longitudinal axis of the polyhedral body, and each cutout has one of its longer edges protruding outward and the other longer edge protruding inward. The polyhedral body is subjected to deformation or partial breakage to absorb an impact imparted to a vehicle as when the vehicle collides against another. The device may be combined with a conventional shock absorber to enhance the effect of impact absorption. |
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DETAILED DESCRIPTION It is a primary object of the present invention to provide an inexpensive impact absorbing device of simple structure which can effectively alleviate the shock due to a large impact force externally imparted thereto.
Another object of the present invention is to provide an impact absorbing device preferably mounted on a vehicle for effectively protecting the driver and passengers and/or a freight from a large impact force externally imparted to the vehicle in the event of a crash.
Still another object of the present invention is to provide an impact absorbing device which is a reliable energy absorber and which can be easily manufactured with a satisfactory uniformity in its energy absorption rate and energy absorption property.
Yet another object of the present invention is to provide an impact absorbing device which can effectively operate even when a bending stress of certain extent is produced in the device due to the impartation of an impact force in a direction deviating somewhat from or at a slight angle with respect to the axis of the device.
A further object of the present invention is to provide an impact absorbing device which can sufficiently withstand a bending load imparted in a direction lateral with respect to the impact absorbing direction.
A still further object of the present invention is to provide an impact absorbing device which can be easily replaced when damaged.
A yet further object of the present invention is to provide an impact absorbing device which can effectively alleviate an impact ranging from a large impact force to a small impact force.
In accordance with the basic aspect of the present invention, there is provided an impact absorbing device comprising a hollow polyhedral body, and a plurality of elongated cutouts formed in each of the side walls of said polyhedral body, said cutouts extending in parallel relation in a direction substantially orthogonal with respect to the longitudinal axis of said polyhedral body and each having one of its longer edges arranged to protrude outward relative to the other, whereby the energy of impact imparted in the axial direction of said polyhedral body can be absorbed by the deformation or partial breakage of the side walls of said polyhedral body
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Vibration and Earthquake Isolation 
