| 摘要 |
PROBLEM TO BE SOLVED: To extend an air hose for compressed air used in cleaning the inside of a factory building as required when it is used and put it in order and store it in a small space after it is used. SOLUTION: A cable C is stretched from a compressed air source to a place where air equipment such as an air gun G is used, and important parts of an air hose H are hoisted like a coil through a pulley A on the cable C. A hoisting means of the air hose H can turn in the horizontal direction freely at each hoisting root place of the air hose H. Moreover, as required, it is supported by a spring so that the hoisting means turn in the direction in which a coil of the air hose H is shrunk. Since the air hose H becomes like a coil, it can be extended along the cable C. Consequently, such equipment that uses compressed air such as the air gun G can be stored safely in a short time, and its storage space can be reduced. Furthermore, it can be used speedily when it is used.
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