JOINT STRUCTURE BETWEEN COLUMN-SHAPED BODIES AND COLUMN-SHAPED OBJECT FORMING DEVICE

PROBLEM TO BE SOLVED: To join column-shaped bodies to each other in a manner that they do not relatively rotate, and to release the joint. SOLUTION: The column-shaped bodies 1 are configured so that a second joint part 4 can be internally fitted to a first joint part 3. First engaging projections 5 are arranged on an inner peripheral surface of the first joint part 3 and second engaging projections 6 are arranged on an outer peripheral surface of the second joint part 4. By rotational operation around an axis after insertion of the second joint part 4 to the first joint part 3, the second engaging projections 6 and the first engaging projections 5 are engaged with each other so that relative movement of the column-shaped bodies 1 in the longitudinal direction can be prevented. Restricting members 8 are arranged to restrict the relative rotation of the second joint part 4 and the first joint part 3 by being inserted between the second joint part 4 and the first joint part 3 and brought into contact with the second engaging projections 6 and the first engaging projections 5. Opening parts 9 for inserting the restricting members 8 between the second joint part 4 and the first joint part 3 are formed in the first joint part 3. Cover members 10 for closing the opening parts 9 are detachably arranged. COPYRIGHT: (C)2011,JPO&INPIT