US 12,330,539 B2
Seat-rotating device
Haruki Mochizuki, Tochigi (JP); Takeshi Akutsu, Tochigi (JP); and Takuji Kaneda, Tochigi (JP)
Assigned to TS TECH CO., LTD., Asaki (JP)
Filed by TS TECH CO., LTD., Asaka (JP)
Filed on Jul. 3, 2024, as Appl. No. 18/763,803.
Application 18/763,803 is a continuation of application No. 18/364,953, filed on Aug. 3, 2023, granted, now 12,054,077.
Application 18/364,953 is a continuation of application No. 17/296,385, granted, now 12,071,048, previously published as PCT/JP2019/045930, filed on Nov. 25, 2019.
Claims priority of application No. 2018-220691 (JP), filed on Nov. 26, 2018; application No. 2019-008028 (JP), filed on Jan. 21, 2019; application No. 2019-011615 (JP), filed on Jan. 25, 2019; application No. 2019-026600 (JP), filed on Feb. 18, 2019; and application No. 2019-046309 (JP), filed on Mar. 13, 2019.
Prior Publication US 2024/0351487 A1, Oct. 24, 2024
Int. Cl. B60N 2/14 (2006.01); B60N 2/06 (2006.01)
CPC B60N 2/146 (2013.01) [B60N 2/06 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A seat-rotating device for a seat installed in a vehicle, comprising:
a base member;
a support member fixed to the base member and having a through hole;
a rotating member rotatably supported on the base member and supporting a seat frame of the seat and having a through hole;
a plurality of balls disposed between the base member and the rotating member and supporting the rotating member; and
a lock member having an engagement arm portion and operated between a locked position where the engagement arm portion is engaged with the through hole of the support member and the through hole of the rotating member to prevent rotation of the rotating member, and a lock release position where the engagement arm portion is not engaged with the through hole of the support member and the through hole of the rotating member to allow rotation of the rotating member,
wherein the rotating member has a flat wall portion extending in the radial direction of the rotating member, a side wall portion extending downward from the flat wall portion, and an extending portion extending from the lower end of the side wall portion,
the extending portion has a facing portion facing a part of the support member and extending in the radial direction, and
a part of the facing portion is located above the lower end of each of the plurality of balls and below the upper end of each of the plurality of balls.