| 摘要 |
PROBLEM TO BE SOLVED: To provide the tube connecting structure capable of connecting tubes with one operation. SOLUTION: This tube connecting structure is provided with insertion tube parts (connecting tube parts 26 and 27) and an insert tube part (a fitting connection part 72) to be inserted into the insertion tube parts to connect the insertion tube parts to the insert tube part. This tube connecting structure is provided with a first projection (a lock projection 130) formed in the peripheral surface of the insertion tube parts, a second projection (a lock guide part 132) formed in a direction crossing the first projection at the same or equal height to the first projection, a recessed part (a lock recessed part 142) formed in the inner wall surface of the insert tube part for insertion of the first projection, and an insertion guide part (an insertion guide piece 140) divided by other part by a slit 138 in an opening of the insert tube part for connection of the second projection. COPYRIGHT: (C)2004,JPO
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