| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem that there does not exist hitherto a joint structure which connects a primary-side cylindrical short pipe and a secondary-side cylindrical short pipe by using flexible tubes at the transfer of objects to be transferred, in particular, particulate objects, and can perform the attachment/detachment work of the flexible tubes by an easy operation without the need for special power. ! SOLUTION: In a joint structure which connects a primary-side cylindrical short pipe and a secondary-side cylindrical short pipe for making objects to be transferred circulate to each other by using flexible cylindrical tubes, annular bulged parts having dimensions larger than outside diameters of the cylindrical short pipes are integrally formed at opening edges at which the primary-side and second-side cylindrical short pipes oppose each other, outer wall faces of the bulged parts are gradually reduced in diameters from openings, and end parts of the flexible cylindrical tubes are coated |
