Abstract: A supporting unit structure of a vehicle seat includes: a rubber elastic body; a seat-connected member; and a floor-connected member. An inner peripheral portion of the rubber elastic body is fastened to either one of the seat-connected member or the floor-connected member by a fastening member that penetrates the inner peripheral portion, and an outer peripheral portion of the rubber elastic body is fastened to the other one of the seat-connected member or the floor-connected member. The other one of the seat-connected member or the floor-connected member is provided with a stopper portion that abuts the fastening member in a radial direction of the fastening member when the seat-connected member and the floor-connected member are relatively displaced by more than a predetermined distance.

Abstract: A supporting unit structure of a vehicle seat includes: a rubber elastic body; a seat-connected member; and a floor-connected member. An inner peripheral portion of the rubber elastic body is fastened to either one of the seat-connected member or the floor-connected member by a fastening member that penetrates the inner peripheral portion, and an outer peripheral portion of the rubber elastic body is fastened to the other one of the seat-connected member or the floor-connected member. The other one of the seat-connected member or the floor-connected member is provided with a stopper portion that abuts the fastening member in a radial direction of the fastening member when the seat-connected member and the floor-connected member are relatively displaced by more than a predetermined distance.

Abstract: A seat elastic support structure includes: a slide adjuster; a foot member; and an elastic support body interposed between the slide adjuster and the foot member and having an outer tube member, an inner tube member arranged inside the outer tube member, and an elastic body interposed between the outer tube member and the inner tube member, wherein: an end portion on a (?X, ?Z) side in an axis line direction of the inner tube member is in contact with the slide adjuster; the foot member is provided with a through hole (30) into which the outer tube member (51) is inserted; and an inner peripheral surface of the through hole and an outer peripheral surface of the outer tube member are joined to each other.