| 摘要 |
<p>PURPOSE: To reduce pressure loss to a fluid by forming the liquid contact face side of an inner spiral ring into the flat face, and forming the whole inner peripheral surface of a composite hose into the nearly smooth face. CONSTITUTION: In the case of connecting a composite hose 10 to a joint fitting 20, an exposed laminated body X of a length L excluding inner cloth 31 and inner-outer spiral rings 1, 2 at a composite hose tip part corresponding to a nipple body part is formed and inserted between a nipple and a sleeve through a seal member S. In the composite hose 10 positioned in the other hollow part of both the nipple and sleeve, the liquid contact face side flat face 11 of the inner spiral ring 1 is brought into contact with the flat strip 62 connected to the inclined face 61 of the sawtooth protrusion 6 of the nipple, and the outer spiral ring 2 is brought into contact with the cylinder part interior of the sleeve. In this state, clamping and tightening are performed. At this time, fastening force in the direction of clamping the laminated body 3 is generated to the laminated body 3 between the inner and outer spiral rings 1, 2 so as to enable fastening without dislocation.</p> |
