IP Library › Granted Patent US 12,391,159
Granted Patent B2
US 12,391,159 · App. 18/312,259 · Granted Aug 19, 2025

Vehicle seat

Inventors: Kazuya Miyawaki (Tochigi-ken, JP); Naoto Yamauchi (Tochigi-ken, JP)
Assignee: TS TECH CO., LTD.
B60N2/5642B60N2/0022B60N2/0025B60N2/0033B60N2/501B60N2210/30B60N2210/42B60N2210/48
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Quick Facts
Patent No.
US 12,391,159
App. No.
18/312,259
Granted
Aug 19, 2025
Kind
B2
Abstract

Provided is a vehicle seat with a structure enabling a rockable moving piece to be disposed in a seat face in a well-fitting manner. A vehicle seat in which a rocking means having a drive mechanism and a moving piece for conveying rocking movement of the drive mechanism to a seated person is disposed in a through hole obtained by hollowing out a portion of a seat face of a seat cushion, wherein: a recess which is recessed in the thickness direction so as to surround the through hole is disposed in the seat face of the seat cushion; and the moving piece is shaped so that the bottom surface side follows the recess.

Claims (38)

1. A vehicle seat, comprising:

a seat back configured to support a back of a seated person;

a seat cushion configured to support buttocks of the seated person;

a frame configured to support the seat cushion and the seat back; and

a rocking unit including a drive mechanism fixed to the frame and a movable portion supported by the drive mechanism, the movable portion being configured to abut against the seated person and transmit rocking motion of the drive mechanism to the seated person, wherein:

the movable portion includes a sensor configured to acquire biological information of the seated person,

wherein the sensor comprises a plurality of sensors,

the movable portion includes a wiring network in a matrix shape formed by a plurality of vertical wirings and a plurality of horizontal wirings, and

the plurality of sensors is disposed at intersections of the vertical wirings and the horizontal wirings.

2. The vehicle seat according to claim 1 , wherein the movable portion is configured to transmit the rocking motion to the seated person based on the biological information of the seated person acquired by the sensor.

3. The vehicle seat according to claim 1 , wherein the sensor is disposed on an upper surface of the movable portion.

4. The vehicle seat according to claim 1 , wherein the sensor is a strain sensor configured to measure a weight of the seated person.

5. The vehicle seat according to claim 1 , wherein the sensor is a strain sensor or a piezoelectric sensor configured to detect vibration caused by heartbeat or respiration of the seated person.

6. The vehicle seat according to claim 1 , wherein the sensor is an electric field sensor or a magnetic sensor configured to detect a nerve signal or a myoelectric signal of the seated person.

7. A vehicle seat, comprising:

a seat back configured to support a back of a seated person;

a seat cushion configured to support buttocks of the seated person;

a frame configured to support the seat cushion and the seat back; and

a rocking unit including a drive mechanism fixed to the frame and a movable portion supported by the drive mechanism, the movable portion being configured to abut against the seated person and transmit rocking motion of the drive mechanism to the seated person, wherein:

the movable portion includes a sensor configured to acquire biological information of the seated person,

wherein the movable portion is formed of a substantially triangular cushion pad that has front edges inclined to approach each other toward a front end in plan view, and

the sensor is disposed in an area away from the front end in the triangular cushion pad.

8. A method of producing a vehicle seat, comprising:

providing a seat back for supporting a back of a seated person;

providing a seat cushion for supporting buttocks of the seated person;

providing a frame for supporting the seat cushion and the seat back; and

providing a rocking unit including a drive mechanism fixed to the frame and a movable portion supported by the drive mechanism, the movable portion being configured to abut against the seated person and transmit rocking motion of the drive mechanism to the seated person, wherein:

the providing the rocking unit comprises disposing, in the movable portion, a sensor configured to acquire biological information of the seated person,

the providing the rocking unit comprises forming the movable portion into a substantially triangular cushion pad that has front edges inclined to approach each other toward a front end in plan view, and disposing the sensor in an area away from the front end in the triangular cushion pad.

9. The method according to claim 8 , wherein the movable portion is configured to transmit the rocking motion to the seated person based on the biological information of the seated person acquired by the sensor.

10. The vehicle seat according to claim 8 , wherein the providing the rocking unit comprises disposing the sensor on an upper surface of the movable portion.

11. The vehicle seat according to claim 8 , wherein the sensor is a strain sensor configured to measure a weight of the seated person.

12. The vehicle seat according to claim 8 , wherein the sensor is a strain sensor or a piezoelectric sensor configured to detect vibration caused by heartbeat or respiration of the seated person.

13. The vehicle seat according to claim 8 , wherein the sensor is an electric field sensor or a magnetic sensor configured to detect a nerve signal or a myoelectric signal of the seated person.

14. The vehicle seat according to claim 8 , wherein the sensor comprises a plurality of sensors,

the providing the rocking unit comprises:

providing, in the movable portion, a wiring network in a matrix shape formed by a plurality of vertical wirings and a plurality of horizontal wirings, and

disposing the plurality of sensors at intersections of the vertical wirings and the horizontal wirings.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 8, 2023
From: MIYAWAKI, KAZUYA; YAMAUCHI, NAOTO
To: TS TECH CO., LTD.
Reel/Frame 063560/0499 →
Priority Claims (1)
JP 2019-123708 · Jul 2, 2019 · national
Continuity (2)
Continuation 17623960
Related Publication 20230271537A1 · Aug 31, 2023
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