| 摘要 |
PURPOSE: An elastic displacement structure of a seat plate for a chair is provided to make a seat plate elastically displaced to the top and bottom according to load distribution. CONSTITUTION: An elastic displacement structure of a seat plate for a chair comprises a base plate(110), a chair seat(100), and an elastic unit(140). The base plate is fixed on the top of a leg part(200). The chair seat is comprised of a seat plate(120). The chair seat is installed on the upper side of the base plate. The elastic unit is installed between the base plate and seat plate. The elastic unit comprises a hinge shaft(141), a seat plate fixture piece(142), a base fixture piece(143), a torsion spring(144), and a connecting bar(145).
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