| 摘要 |
A vehicle seat is composed of: a base member 40 elastically connected to and supported on any of frame members arranged separately in a width direction of a seat frame, through metal springs 41, to constitute a lower layer; a first net member 50 of a three-dimensional structure, in which a front mesh layer and a back mesh layer are connected by a large number of piles, stretched above the base member 40 and between the frame members arranged separately in the width direction, to constitute a middle layer; and a second net member 60 of a three-dimensional structure, in which a front mesh layer and a back mesh layer are connected by a large number of piles, disposed to cover the top of the middle layer and stretched with a tension lower than that of the first net member constituting the middle layer, to constitute an upper layer.
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