(57) Abstract Objective The folding sheet to leap, it operates electrification,To lighten the burden te worker, with simplification of enclosing operation sumuzu conversion is assured. Constitution Standing up to the hull side, the folding expression which enclosesSheet 1 to leap, feature D, in the hull side distribution facilities be which is donesuburaketsuto 5, support of the pair which locks in the same bracketComponent 6,60, one end is stuck in the support component and the other end sitsThe time of the pair which is locked to the seat cushion frame 9 of 1Dynamic component 8,80, in seat cushion frame 9 one endIn bracket 10,100 of the pair which is locked time motion unrestrictedlyThe Drive means G which are supported, M, in based bracket 5 arrivalFrom the time dynamic rod 11 which is done and the above-mentioned Drive means G, the spiral shellfish it adjusts in MIt constituted.
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