Title:
SEATBELT RETRACTOR AND SEATBELT DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/095709
Kind Code:
A1
Abstract:
Provided are a seat belt retractor and a seat belt device. The present invention comprises: a spool; a motor for rotating the spool; a switching element connected to the motor; a control circuit that switches the switching element via PWM control such that the motor rotates in a direction in which a seat belt is wound around the spool; a recirculation path for recirculating, to the motor, a current produced by counter electromotive force of the motor; and a current control circuit for controlling the magnitude of the current flowing to the recirculation path.
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| JP5642161 | Seat belt device |
| JPS60189662 | SAFETY BELT DEVICE |
Inventors:
TAKAO MASATO (JP)
Application Number:
PCT/JP2019/041823
Publication Date:
May 14, 2020
Filing Date:
October 25, 2019
Export Citation:
Assignee:
JOYSON SAFETY SYSTEMS JAPAN KK (JP)
International Classes:
B60R22/48; B60R22/46; H02P7/29
Foreign References:
| JP2011183873A | 2011-09-22 | |||
| JP2011111035A | 2011-06-09 | |||
| JP2009262811A | 2009-11-12 |
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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