| 摘要 |
PROBLEM TO BE SOLVED: To permit the supply of warm air, having a temperature within a given range, into an airtight vessel and minimize the affection of a high temperature, which is given to the airtight vessel or contained matter in the same, by a method wherein an air sending hose is equipped with a temperature detecting and opening valve, opening one part of the air sending hose to the outside when the temperature of the warm air, sent into the airtight vessel or the like through the air sending hose, has become higher than a given temperature range. SOLUTION: When a hot air heater, employed for sending warm air into a sleeping pad drying bag or a shower bag, is applied especially to the shower bag having a patient neck passing hole 2, through which the face of the patient is exposed, the warm air discharging side of a warm air generator 3 is connected to the shower bag 1 through an air sending hose 4, a T-shape pipe 5 and another air sending hose 6. In this case, the T-shape pipe 5 in the air sending route is provided with a temperature detecting and opening valve 7. The temperature detecting and opening valve 7 is constituted of an organic film (fusible filter), fused at a temperature higher than a given value and accommodated in the filter, while the fusible film is fused when the temperature of warm air, sent from the air sending hose 4 into the vessel, is higher than the fusing temperature (about 120 deg.C) whereby warm air, sent through the air sending hose 4, is discharged to the outside of the vessel.
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