US 12,151,642 B2
Webbing winding device and vehicle seat
Chihiro Sano, Aichi (JP); and Motoki Sugiyama, Aichi (JP)
Assigned to KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO, Aichi (JP)
Appl. No. 17/796,114
Filed by KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO, Aichi (JP)
PCT Filed Jan. 12, 2021, PCT No. PCT/JP2021/000715
§ 371(c)(1), (2) Date Jul. 28, 2022,
PCT Pub. No. WO2021/157292, PCT Pub. Date Aug. 12, 2021.
Claims priority of application No. 2020-019938 (JP), filed on Feb. 7, 2020.
Prior Publication US 2023/0087082 A1, Mar. 23, 2023
Int. Cl. B60R 22/40 (2006.01); B60R 22/343 (2006.01); B60R 22/405 (2006.01)
CPC B60R 22/405 (2013.01) [B60R 22/343 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A webbing winding device comprising:
a spool, a webbing to be attached to an occupant being wound around the spool, the spool being rotated in a drawing-out direction by the webbing being drawn out;
a displacement member configured to be displaced between a first position and a second position, rotation in a drawing-out direction of the spool being enabled in a state in which the displacement member is disposed at the first position, and rotation in the drawing-out direction of the spool being locked in a state in which the displacement member is disposed at the second position; and
an actuation portion, actuation of the actuation portion causing a part of the displacement member to be attracted to cause the displacement member to be displaced from the first position to the second position,
wherein a center of gravity of the displacement member is set so that the displacement member is displaced toward the second position in a case in which negative acceleration with respect to a direction in which the part of the displacement member is attracted to the actuation portion is generated in the displacement member.