| 摘要 |
PROBLEM TO BE SOLVED: To increase a variable amount of a cushion length by a fluid bag by supporting an air bag as an actuator making the cushion length variable against a load from above, in a cushion length-variable seat in which the length of a seat cushion is variable.SOLUTION: A cushion length-variable seat is provided with a first fluid bag 21 such that the first fluid bag inflates and contracts according to an air amount injected thereinto to make a cushion length variable, and includes a second fluid bag 22 supporting the first fluid bag 21 such that it is prevented from descending downward when the first fluid bag 21 is inflated such that the cushion length is elongated. |
