US 12,252,048 B2
Vehicle seat
Kensuke Mizoi, Tochigi (JP); Ryuzaburo Abe, Tochigi (JP); Kenichi Niitsuma, Tochigi (JP); Soichiro Tanaka, Tochigi (JP); Chihiro Muto, Tochigi (JP); Takeshi Ito, Saitama (JP); and Ai Furuta, Tochigi (JP)
Assigned to TS TECH CO., LTD., Saitama (JP)
Filed by TS TECH CO., LTD., Saitama (JP)
Filed on Apr. 14, 2023, as Appl. No. 18/300,431.
Application 15/888,732 is a division of application No. 14/647,709, granted, now 9,884,574, issued on Feb. 6, 2018, previously published as PCT/JP2013/081973, filed on Nov. 27, 2013.
Application 18/300,431 is a continuation of application No. 17/346,427, filed on Jun. 14, 2021, granted, now 11,628,752.
Application 17/346,427 is a continuation of application No. 16/362,841, filed on Mar. 25, 2019, granted, now 11,040,644, issued on Jun. 22, 2021.
Application 16/362,841 is a continuation of application No. 15/888,732, filed on Feb. 5, 2018, granted, now 10,239,429, issued on Mar. 26, 2019.
Claims priority of application No. 2012-259384 (JP), filed on Nov. 28, 2012; application No. 2012-259385 (JP), filed on Nov. 28, 2012; and application No. 2013-237090 (JP), filed on Nov. 15, 2013.
Prior Publication US 2023/0249594 A1, Aug. 10, 2023
Int. Cl. B60N 2/42 (2006.01); B60N 2/00 (2006.01); B60N 2/02 (2006.01); B60N 2/427 (2006.01); B60N 2/62 (2006.01); B60N 2/64 (2006.01); B60N 2/66 (2006.01); B60N 2/68 (2006.01); B60N 2/80 (2018.01); B60N 2/90 (2018.01)
CPC B60N 2/643 (2013.01) [B60N 2/0025 (2023.08); B60N 2/0028 (2023.08); B60N 2/003 (2023.08); B60N 2/0284 (2013.01); B60N 2/42 (2013.01); B60N 2/4228 (2013.01); B60N 2/4235 (2013.01); B60N 2/42754 (2013.01); B60N 2/62 (2013.01); B60N 2/66 (2013.01); B60N 2/68 (2013.01); B60N 2/80 (2018.02); B60N 2/914 (2018.02); B60N 2/986 (2018.02); B60N 2210/12 (2023.08); B60N 2210/24 (2023.08); B60N 2210/40 (2023.08); B60N 2220/20 (2023.08)] 13 Claims
OG exemplary drawing
 
1. A vehicle seat comprising:
a seat back that supports a seated passenger from a rear;
a seat back frame that forms a framework of the seat back; and
a support plate attached to the seat back frame,
wherein:
a shoulder support portion provided at the seat back and that supports each of shoulders of the seated passenger includes a bag that expands by supply of fluid into the bag,
the bag expands such that one end portion of the shoulder support portion positioned on an outside in a width direction of the vehicle seat moves more forward than an other end portion of the shoulder support portion positioned on an inside in the width direction,
the seat back frame includes an upper frame disposed at an upper end portion of the seat back frame, and a side frame provided at a side portion of the seat back frame and connected to the upper frame,
an outer end of the bag on the outside in the width direction protrudes outward from a side end of the upper frame, and
the bag is supported by the support plate from the rear.