| 摘要 |
PROBLEM TO BE SOLVED: To securely prevent an air supply hose from getting out of place even in a severe weather condition while retaining its simple and easy connecting property by providing a screw body with a knob in a fixing member fitted in the outer peripheral groove of a male metal fitting in an air supply valve attached to a fence body provided with a bag body in which a gas can be charged. SOLUTION: An air supply valve 1 attached to a flexible fence body 2 is constituted of a fitting frame 3 with flange fixed to the fence body 2, a female metal fitting 5 fixed to the fitting frame 3 through a packing 4 by a screw, a check valve 6 attached to the female metal fitting 5, a pressing member 7 fitted in the outer peripheral groove 11 of the male metal fitting 10, and a fixing member 8. The fixing member 8 is constituted of a spherical body 8A, a spring 8B, a screw part 8C, and a knob 8D. In a state that the screw part 8C is loosened and the spherical body 8A is projected from the inside face of female metal fitting 5 by urging the spring 8B, the male metal fitting 10 of the air supply hose 9 is inserted and when the spherical body 8A coincides with the outer peripheral groove 11, after the air supply hose is connected, the knob 8D is turned to lock.
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