US 12,233,758 B2
Vehicle seat
Hayato Matsui, Aichi (JP); and Tatsuya Irie, Aichi (JP)
Assigned to TOYOTA BOSHOKU KABUSHIKI KAISHA, Aichi (JP)
Filed by TOYOTA BOSHOKU KABUSHIKI KAISHA, Aichi (JP)
Filed on Dec. 21, 2022, as Appl. No. 18/086,264.
Claims priority of application No. 2021-215041 (JP), filed on Dec. 28, 2021.
Prior Publication US 2023/0202354 A1, Jun. 29, 2023
Int. Cl. B60N 2/16 (2006.01); B60N 2/68 (2006.01); B60N 2/18 (2006.01)
CPC B60N 2/1615 (2013.01) [B60N 2/165 (2013.01); B60N 2/68 (2013.01); B60N 2/168 (2013.01); B60N 2/1695 (2013.01); B60N 2/1864 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A vehicle seat, comprising:
a seat cushion;
a cushion frame supporting the seat cushion;
a support member arranged below the cushion frame; and
a lifting device configured to raise and lower at least a portion of the seat cushion,
wherein the lifting device includes:
a pinion gear held by the cushion frame;
a sector gear engaged with the pinion gear; and
a link to which the sector gear is fixed, the link being rotatably coupled to the cushion frame,
wherein the link is made of a material with a lower yield stress than a material forming the sector gear,
wherein the link includes:
a gear attachment portion to which the sector gear is fixed; and
an arm portion extending from the gear attachment portion to a seat front side, the arm portion being rotatably coupled to the support member,
wherein the arm portion is arranged between a coupling portion to the support member and the gear attachment portion, and has a step portion recessed in a seat-width direction, and
wherein the step portion extends from an upper end of the arm portion to a lower end of the arm portion.