| 摘要 |
PROBLEM TO BE SOLVED: To provide a hose whose durability can be improved without using reinforcing material excessively by improving breaking efficiency. SOLUTION: Two or more reinforcing layers 2 are provided, where the maximum value Rmax of tensile strength loading rate R1 and the minimum value Rmin satisfy an expression of (Rmax-Rmin)/Rmax×100<=20 at the maximum operating pressure or higher, more preferably, in a range from 100 to 150% of the maximum operating pressure. Where, Rmax>=R1>=Rmin, Ri= ti/T1×100 t1 expresses a tensile strength N per a reinforcing material, which is caused when pressure is applied, and T1 expresses a tensile strength N per a reinforcing material.
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