| 摘要 |
PROBLEM TO BE SOLVED: To provide a hose and its manufacturing method for reducing force required for fitting a joint and a valve into a pipe mouth part externally. SOLUTION: An inner side rubber layer 1, a resin layer 2, and an outer side rubber layer 3 are formed in this order from an inner side. An outer peripheral face of the inner side rubber layer 1 is formed in a corrugation manner in the peripheral direction in an opening part (an opening part at one end or opening parts at both ends of the hose) for fitting the joint and the valve into the pipe mouth part externally. The whole resin layer 2 is formed in a corrugation manner along an outer peripheral face of the inner side rubber layer 1. An inner peripheral face of the outer side rubber layer 3 is formed in a corrugation manner along a shape of the resin layer 2. COPYRIGHT: (C)2007,JPO&INPIT
|
