US 12,420,676 B2
Sensor-equipped seat
Hirokazu Yamamoto, Aichi (JP); Koichi Hasegawa, Aichi (JP); and Masaru Murayama, Aichi (JP)
Assigned to Sumitomo Riko Company Limited, Aichi (JP)
Filed by Sumitomo Riko Company Limited, Aichi (JP)
Filed on Apr. 17, 2024, as Appl. No. 18/638,625.
Application 18/638,625 is a continuation of application No. PCT/JP2022/040439, filed on Oct. 28, 2022.
Claims priority of application No. 2022-033077 (JP), filed on Mar. 4, 2022.
Prior Publication US 2024/0262256 A1, Aug. 8, 2024
Int. Cl. B60N 2/00 (2006.01); B60N 2/56 (2006.01)
CPC B60N 2/002 (2013.01) [B60N 2/56 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A sensor-equipped seat (1), comprising:
an installation member (11), having an installation seating surface (11a);
a seat cushion (10), which is a seat cushion installed to the installation seating surface of the installation member and has: a first cushion (12) having an accommodation concave part (80) open to a side of the installation member in a counter pressure-receiving surface (12b) located on a back side of a pressure-receiving surface (12a) receiving a pressure from a seated person; and a second cushion (15), accommodated in the accommodation concave part of the first cushion to be stacked on the first cushion; and
a sensor (3), disposed between a first pressing surface (82b) located on a side opposite to a direction in which the accommodation concave part is open in the accommodation concave part of the first cushion and a second pressing surface (15a) located on a side opposite to the installation member in the second cushion, detecting a seated state of the seated person or biological information of the seated person by detecting a physical quantity in accordance with a pressure transmitted from the pressure-receiving surface of the seat cushion via the first cushion in the seated state by the seated person, and having a flexible property,
wherein the seat cushion is installed to the installation seating surface of the installation member and, in an unseated state prior to the seated person being seated at the seat cushion, the first cushion and the second cushion are pre-compressed in a stacking direction in which the first cushion and the second cushion are stacked, and the sensor is applied with pre-compression by a compression reaction force of the first cushion and the second cushion.