| 摘要 |
PROBLEM TO BE SOLVED: To supply water by a hose, having a sufficiently large bore, a part near the nozzle from a pump, to facilitate handling by such a way that only the nozzle forms a small bore, and to suppress pressure loss at a part where the diameter thereof is changed, to a minimum. SOLUTION: In a fire fighting hose so formed that a lining of rubber or synthetic resin is applied on the inner surface of a jacket formed such that warps and wefts are woven in a cylindrical shape, a small part 3 is formed at a tip part and a large part 2 is formed at a rear part, and the large part 2 and the small part 3 are continued through a taper part 4 wherein an inside diameter is continuously changed. Since the small part 3 is formed at the tip of the hose, a nozzle 7 is coupled thereto to easily facilitate like a small fire fighting hose. Further, the large part 2 is formed at the rear part of the hose. Water is supplied from a fire fighting pump to a cylinder tip hose 1 for fire fighting through a large fire fighting hose, and water is allowed to pass with high efficiency by suppressing pressure loss.
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