公开(公告)号：US20240123886A1

公开(公告)日：2024-04-18

申请号：US18483431

申请日：2023-10-09

Applicant: NHK SPRING CO., LTD.

Inventor： Chikanori HONDA ,  Kousuke SUZUKI

IPC: B60N3/00 ,  B60N2/75

CPC classification number: B60N3/004 ,  B60N2/75

Abstract: A hand rest device, including: a hand rest that is disposed at a front side of a seat of a vehicle, the hand rest being disposed at a usage position for supporting a hand of a vehicle occupant seated at the seat and an adjustment mechanism that adjusts a height of the usage position of the hand rest.

公开(公告)号：US20230114061A1

公开(公告)日：2023-04-13

申请号：US17935872

申请日：2022-09-27

Applicant: NHK SPRING CO., LTD.

Inventor： Kazuhito KATO ,  Kousuke SUZUKI

IPC: B60N2/24 ,  B60N2/00 ,  B60N2/90

Abstract: A car sickness inhibition device includes: a memory and a processor connected to the memory, the processor being configured to: acquire an acceleration a in a front-rear direction of a vehicle or angles of inclination θ of the head and upper body of an occupant sitting in a seat of the vehicle; and by using expression θ>tan−1(a/g)·(1), where g denotes gravitational acceleration, obtain from the acquired acceleration a an angle of inclination θ0 with which car sickness is inhibited, or obtain an acceleration a0 with which car sickness is inhibited.

公开(公告)号：US20230382281A1

公开(公告)日：2023-11-30

申请号：US18325539

申请日：2023-05-30

Applicant: NHK SPRING CO., LTD.

Inventor： Kazuhito KATO ,  Kousuke SUZUKI ,  Chikanori HONDA

IPC: B60N2/75

CPC classification number: B60N2/767 ,  B60N2/753

Abstract: The armrest of a vehicle seat is provided with a first armrest and a second armrest. The first armrest includes a first end portion rotatably supported by a side portion of a seatback, and selectively adopts a not-in-use position in which the first armrest is positioned so as to extend toward a seat upper side at the seatback side portion, and an in-use position in which the first armrest is positioned so as to be rotated from the seatback side portion toward a seat front side, so as to extend toward the seat front side. The second armrest includes a first end portion rotatably supported by a second end portion of the first armrest and, in the in-use position, selectively adopts a stowed position in which the second armrest is positioned at an upper surface side of the first armrest, and a deployed position in which the second armrest is positioned so as to be rotated from the upper surface side of the first armrest toward the seat front side, so as to extend obliquely toward a seat upper side in side view and so as to extend obliquely toward a seat width direction inside in plan view.

公开(公告)号：US20230302979A1

公开(公告)日：2023-09-28

申请号：US18184594

申请日：2023-03-15

Applicant: NHK SPRING CO., LTD.

Inventor： Chikanori HONDA ,  Kousuke SUZUKI

IPC: B60N2/80

CPC classification number: B60N2/80 ,  B60N2002/899

Abstract: A headrest includes a first configuration section comprising a hard urethane and formed with an indentation in a front face, the indentation enabling entry of a supported portion, and the supported portion being a location corresponding to an occipital bone of the head of the seated occupant; and a second configuration section comprising a soft urethane having a lower rigidity than the hard urethane, the second configuration section being provided at the indentation so as to be deformed by the supported portion. Part of the first configuration section, which is a bottom face of the indentation, is configured by a left-right pair of head support faces that support the supported portion and that are connected together at a connection location having a straight line shape. An angle formed between cross-sections of the left and right head support faces when sectioned along a plane perpendicular to the connection location is a first angle that is from 37.2° to 143°. An angle formed between a direction perpendicular to the connection location and a seat front-rear direction when viewed along a seat left-right direction is a second angle that is from 12.8° to 68.7°.