US 12,269,418 B2
Webbing take-up device
Hayato Uchibori, Aichi (JP); Yoshiteru Sakaguchi, Aichi (JP); Masanori Nagamine, Aichi (JP); and Yuta Suzuki, Aichi (JP)
Assigned to KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO, Aichi (JP)
Appl. No. 17/924,289
Filed by KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO, Aichi (JP)
PCT Filed Apr. 23, 2021, PCT No. PCT/JP2021/016463
§ 371(c)(1), (2) Date Nov. 9, 2022,
PCT Pub. No. WO2021/230046, PCT Pub. Date Nov. 18, 2021.
Claims priority of application No. 2020-084786 (JP), filed on May 13, 2020.
Prior Publication US 2023/0192028 A1, Jun. 22, 2023
Int. Cl. B60R 22/38 (2006.01)
CPC B60R 22/38 (2013.01) 4 Claims
OG exemplary drawing
 
1. A webbing take-up device comprising:
a spool on which webbing of a seatbelt device is taken up by the spool being rotated in a take-up direction;
a rotating member configured such that the spool is rotated in the take-up direction by the rotating member being rotated toward one side;
a tube-shaped cylinder open at an axial direction leading end side;
a fluid supplier provided at an axial direction base end side of the cylinder and supplying a fluid inside the cylinder in a vehicle emergency;
a moving member that is provided inside the cylinder, that is moved toward the axial direction leading end side of the cylinder due to pressure of the fluid, and that rotates the rotating member toward the one side by being moved in a state in which a tooth of the rotating member has bitten into or pierced the moving member; and
a stopper provided further toward a movement direction side of the moving member than a section where the tooth of the rotating member has bitten into or pierced the moving member, the stopper being pressed by a portion of the moving member where biting or piercing of the rotating member has been disengaged, the stopper being engaged by teeth of the rotating member, and the stopper suppressing rotation of the rotating member toward the one side by the stopper being moved toward the section where teeth of the rotating member bite into or pierce the moving member, wherein:
the stopper includes a resistance portion that resists compression by the rotating member and the moving member,
wherein rotation of the rotating member toward the one side is suppressed by the resistance portion that has been interposed between the rotating member and the moving member.