| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a structure of clamp capable of applying fastening force to the circumference of a joint of inner and outer pipes. SOLUTION: This structure of a clamp fastens a joint 10 of a connector 5 (or a filler pipe 2) of an inner pipe, and a filler tube 4 of an outer pipe. The structure is formed to fasten the outer peripheral part of the clamp 20 to the joint 10, and to reduce its diameter by the deformation in such a situation that circular ring-like clamp 20 loosely fits to the joint 10 surrounding it. The parts of the outer surface of the clamp 20 are radially evagnated as four projections 21, and the inner peripheral part of the clamp 20 is formed to cohere to the outer periphery of the joint face 10.</p> |
