Patent ID: 11882940
Assignee: JSP CORPORATION
Field: Furniture, games (Other fields)
Classification: CPC A | IPC A

Claim 0:
1. A cushion body for sitting made of an expanded beads molded body, comprising:
a base part having a sitting surface formed of a curved surface that is curved concavely to support, from below, the buttocks of a seated person in a seated posture; and
a pair of side supporting portions each having a side supporting surface formed of a curved surface that is curved continuously from the sitting surface, and projecting from sides of the base part such that the side supporting portions can be bent and deformed outward by a load applied to the side supporting surfaces so as to support both left and right parts of the buttocks of the seated person in the seated posture,
wherein deformable areas are formed under the side supporting portions so that the side supporting portions can bend downward, and
wherein the expanded beads molded body shows a load of 10 to 150 N with a bending deflection of 20 mm, and the expanded beads molded body shows a 25% compressive stress of 0.08 to 7 MPa.