RUBBER HOSE PROVIDED WITH SPIRAL REINFORCING YARN LAYER AND PRODUCTION THEREOF

Title:

RUBBER HOSE PROVIDED WITH SPIRAL REINFORCING YARN LAYER AND PRODUCTION THEREOF

Document Type and Number:

Japanese Patent JP2775574

Kind Code:

B2

Abstract:

PURPOSE: To obtain a rubber hose provided with a spiral reinforcing yarn layer preventing the yarn disturbance of the reinforcing yarn layer due to the extrusion pressure of an outer rubber tube.
CONSTITUTION: In a rubber hose constituted by providing spiral reinforcing yarn layers 3, 5 to the outside of an inner rubber tube 1 and further forming an outer rubber tube 9 as an outer layer, a thin-walled yarn pressing rubber layer 7 is formed outside the spiral reinforcing yarn layers 3, 5 and the outer rubber tube 9 is provided to the outside of the yarn pressing rubber layer 7. The first reinforcing yarn layer 3 and the second reinforcing yarn layer 5 are formed by winding reinforcing yarns around the inner rubber tube 1 in mutually opposite directions. The thin-walled yarn pressing rubber layer 7 provided outside the reinforcing yarn layers 3, 5 and the inner rubber tube 1 can be closely bonded by evacuating the space between the extruded yarn pressing rubber layer 7 and the inner rubber tube 1 to bring the same to a vacuum (negative pressure) state.

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Inventors:

FURUYA YOICHI

Application Number:

JP21701593A

Publication Date:

July 16, 1998

Filing Date:

August 09, 1993

Export Citation:

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