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Patent Searching and Data


Title:
SEATBELT RETRACTOR
Document Type and Number:
WIPO Patent Application WO/2024/101057
Kind Code:
A1
Abstract:
Provided is a seatbelt retractor with which it is possible, using a simple configuration, to realize switching of twist torque by a torsion bar after a pretensioner stops operating. This seatbelt retractor 1 comprises a spindle 70, a pretensioner 20, a tread head 40, a torsion bar 50, and a lock ring 80. While the pretensioner 20 operates, rotation of the tread head 40 in a winding direction is transmitted to the spindle 70 via the torsion bar 50, whereby the lock ring 80 rotates in the winding direction together with the spindle 70. Moreover, after the pretensioner 20 stops operating, the rotation is hindered, the spindle 70 is permitted to rotate relative to the lock ring 80 in an extension direction of a belt due to a passenger load that is caught on the belt, and the torsion bar 50 is twisted due to the relative rotation of the spindle 70.

Inventors:
ONO KATSUYASU (JP)
KAWASAKI SHUJI (JP)
Application Number:
PCT/JP2023/036792
Publication Date:
May 16, 2024
Filing Date:
October 10, 2023
Export Citation:
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Assignee:
AUTOLIV DEV (SE)
ONO KATSUYASU (JP)
KAWASAKI SHUJI (JP)
International Classes:
B60R22/28; B60R22/46
Foreign References:
JP2020175754A2020-10-29
US20110147509A12011-06-23
JP2022121998A2022-08-22
JP2019527648A2019-10-03
JP2004231019A2004-08-19
JP2009045987A2009-03-05
JP2010508205A2010-03-18
JP2021531200A2021-11-18
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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