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Vibration-insulative support member with cords
| Details |
Inventors: Yamada, Yasuhiko; Tomio, Minaki; Miyamae, Toshiyuki; Kawai, Norio;
Assignee: Toyo Tire & Rubber Co., Ltd. (Osaka, JP)
Primary Examiner: Oberleitner; Robert J.
Assistant Examiner:
Attorney, Agent or Firm: Sterne, Kessler, Goldstein & Fox
A vibration-insulative support member includes an elastic body made mainly of rubber, and a pair of upper and lower flanges secured to upper and lower ends of said elastic body, respectively. The elastic body includes cords disposed in the rubber portion of the elastic body. The cords are arranged in layers substantially parallel to the upper and lower flanges in such a manner that the cords in each layer are distributed in a plan substantially parallel to the upper and lower flanges. |
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DETAILED DESCRIPTION It is therefore an object of this invention to provide a vibration-insulative support member which is excellent in both vertical vibration-insulative properties and horizontal vibration-isolation properties, and can be manufactured easily.
According to one aspect of the present invention, there is provided a vibration-insulative support member comprises an elastic body made mainly of rubber, and a pair of upper and lower flanges secured to upper and lower ends of said elastic body, respectively; said elastic body including cords disposed in the rubber portion of said elastic body, said cords being arranged in layers substantially parallel to the upper ant lower flanges in such a manner that said cords in each layer are distributed in a plan substantially parallel to said upper and lower flanges.
According to another aspect of the present invention, there is provided vibration-insulative support member comprises an elastic body made mainly of rubber, and a pair of upper and lower flanges secured to upper and lower ends of said elastic body, respectively; said elastic body including a cord disposed in the rubber portion of said elastic body, said cord being so arranged as to form layers of said cord generally parallel to the upper and lower flanges, and said cord disposed in each layer being distributed in a plan generally parallel to said upper and lower flanges.
The cord used in the present invention is, like a cord used in an automobile tire, is made of polyester, nylon, rayon, steel, a piano wire or the like.
The diameter of the cord is 0.
2 to 3 mm and preferably 0.
4 to 0.
8 mm.
The directions of the cords are arbitrary so long as the cords are disposed in horizontal planes.
For example, a cord fabric formed by the above cords is rubberized, and the rubberized cord fabric is cut into a suitable shape such as a circular shape, a square shape and a polygonal shape (having at least five (pentagon) apexes).
Such rubberized cord fabrics and rigid plates are alternately laminated in a predetermined proportion and bonded together
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