| 摘要 |
PROBLEM TO BE SOLVED: To provide a pipe connecting structure not only requiring any part or tool for connection but also capable of preventing the release of the connection by one operation, and a bedding drying tool using this pipe connecting structure. SOLUTION: One pipe 21 has a cylindrical connection part 1 to be fitted to one end of the other pipe 32 protrusively provided at one end. The connection part comprises a first cylindrical part 2, a first circumferential groove part 3, a second cylindrical part 4 and a second circumferential groove part 5 in order from the tip. The first and second cylindrical parts 2, 4 have a first axial groove part 7 and a second axial groove part 8 which are mutually shifted in the circumferential direction, respectively. The other pipe 32 has first and second locking projections 11, 12 to be fitted to the groove parts on one end inner surface. The positional relation of both the locking projections 11, 12 is set so as to have the distance between both the circumferential groove parts 3, 5 in the axial direction and the distance between both the axial groove parts 7, 8 in the circumferential direction.
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