| 摘要 |
PROBLEM TO BE SOLVED: To provide a fire hose having superior heat-proof and abrasion resistance characteristics and having a small minimum bend radius showing quite few occurrence of kink.SOLUTION: There is provided a fire hose comprising a double jacket structure having an inner tube including an inner tube jacket and an outer tube including an outer tube jacket in which (a) the inner tube is constituted by a multilayer structure having an inner lining layer made of rubber or resin in at least an inner peripheral side of the inner tube and having a coating layer made of rubber or resin at an outer peripheral side of the inner tube, and (b) a diameter difference between an outer diameter of the inner tube and an inner diameter of the outer tube is set in such a way that the inner peripheral surface of the outer tube and the outer peripheral surface of the inner tube are closely contacted to each other when the fire hose performs a usual drainage and a clearance is present between the inner peripheral surface of the outer tube and the outer peripheral surface of the inner tube when the fire hose does not perform a drainage. |
