PROBLEM TO BE SOLVED: To solve the problem that a quiescent wheelchair life becoming an everyday affair causes decline of will-power, or feeling of feebleness or weakness, whereas some user of a wheelchair requires rehabilitation for maintenance of physical fitness by assistance or by own power.SOLUTION: A rehabilitation auxiliary chair is mounted on a wheelchair. Hereby, little vibration moves legs and loins to improve blood flow in the legs, a light rehabilitation effect can be obtained even when riding thereon for a long time, and a such an effect that will-power for moving by himself or a pleasant time is desired naturally can be obtained more than expectation.SELECTED DRAWING: Figure 4【課題】 車椅子の利用者の中には補助又は自分の力により体力維持にリハビリを必要としています。車椅子の生活の中で静止しているのが日常化し気力の低下、疲労感脱力感を感じる。【解決手段】 車椅子にリハビリ補助椅子を装着する事により、多少の振動が足腰を動かし脚の血液の流れを良くし長い時間乗っていても軽いリハビリの効果もあり自ら動き出す気力や快適な時間を自然に求めることができる効果も期待以上に得られる。【選択図】図4