| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an expansion device for a vehicle seat capable of being easily mounted on a seat side frame. SOLUTION: A gas introduction port 32i of an inflatable tube 32 is mounted on a small diameter part 36a on the rear end side of a cylindrical mouth piece 36 from outside thereof, and is fixed with a ring-shaped clamping band 38. A mesh webbing 34 passes through between a tapered face 40a, the outer periphery of a connecting hardware 40 and a tapered face 42a, the inner periphery of the tapered ring 42, and is folded from the tip side of the tapered ring 42 so as to overlap on the outer periphery of the tapered ring 42. A press ring 44 is mounted on the outer periphery of the tapered ring 42 from the outside thereof so as to press on this mesh webbing 34. A slit 42b is provided on the tapered ring 42, thereby, diameter can be expanded and deformed.</p> |
