| 摘要 |
<p>This invention relates to a chair and a seat on which a breech can be laid comfortably with a good posture. In particular, the present invention relates to a seat portion having a hole in a predetermined portion for equipping a cushion made of various elastic materials. This invention also relates to a chair and a seat having the seat portion, comprising: a hole provided in a place corresponding to a users´ ischium; a cushion mounted within the hole and wrapped with a cover, and: a health improving pa optionally inserted under the cushion. The pad can be mad by covering the materials like charcoal, yellow ocher or bio-ceramic, etc with the cover. Alternately, the pad can be made by foam molding in desired shape after adding polyurethane or polyester to the materials.</p> |
