ECCENTRIC HOSE COPING WITH EARTHQUAKE AND ITS MANUFACTURE

Japanese Patent JP3842853

B2

PROBLEM TO BE SOLVED: To obtain an air conditioning sanity equipment piping hose which freely follows up horizontal displacement by setting molding angle of fiber codes in respect to a pipe axis, larger than a balance angle of the hose at both ends of the hose and smaller than the balance angle at its center.
SOLUTION: An eccentric hose 1 has a cylindrical barrel composed of inner and outer surface rubber layers 2, 3, provided with a center portion B with a small diameter and containing a rubber coated fiber reinforced layer 4 which is laminated at the sectionally center portion with a mold angle smaller than a balance angle of the hose in respect to a pipe axis, and both ends A, C each having a large diameter and containing the rubber coated fiber reinforced layer 4 with an angle larger than the balance angle of the hose. An end ring 7 and a flange 8 are integrally connected with both the ends by means of the rubber coated fiber reinforced layer 4 and the inner surface rubber layer 2. The inner and outer surface rubber layers 2, 3 are prepared by molding sheets from rubber blend similar to conventional rubber pipe made of natural rubber or synthetic rubber, and laminating them.

Yokobori Shizuo
Tsujimoto Masami

JP33470496A

November 08, 2006

November 28, 1996

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TOYO TIRE & RUBBER CO.,LTD.

F16L11/08; F16L23/024; B29D23/00; F16L23/026; F16L23/028; F16L27/10; B29K9/00; B29K105/08; (IPC1-7): F16L11/08; B29D23/00; F16L23/026; F16L23/024; F16L23/028; //B29K9:00; B29K105:08

JP55066283U
JP50092518A
JP8159349A
JP3118384U
JP60031582U
JP51044183A

▲吉▼川 俊雄

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