| 摘要 |
PROBLEM TO BE SOLVED: To provide a balloon fixture for fixing a balloon firmly to a fixing shaft or connector with appropriate caulking strength, absorbing change of the thickness of the balloon even when the thickness is changed. SOLUTION: This balloon fixture consists of an inner caulking member 1 to be inserted into the end of a tubular-formed balloon B and an outer caulking member 2 to be engaged with the outside of the end of the balloon B. The inner caulking member 1 has caulking protrusions to expand the end of the balloon B in the radial direction and fix the balloon, and the outer caulking member 2 has a fixing cylinder 21 to clasp the end of the balloon B together with the caulking protrusions 13, 14 of the inner caulking member 1. The fixing cylinder 21 of the outer caulking member 2 is a tapered cylinder whose inner diameter becomes larger from the top end to the bottom end, and the caulking strength can be increased/decreased by the relative movement of the inner caulking member 1 inserted into the outer caulking member 2 in the axial direction. And slipping of the balloon in the axial direction is prevented by engagement of the sawlike protrusions 15 of the inner caulking member 1 with the engagement hooks 25 of the outer caulking member 2. |
