| 摘要 |
A seat belt system for protecting and binding an occupant inside a vehicle which comprises an emergency locking seat belt retractor which can be selectively set to be in a tensile force giving mode to give tensile force to a seat belt or in a tensile force cancel mode to cancel the tensile force and a seat movement detector, characterized in that according to a signal from the seat movement detector, the emergency lock system seat belt retractor is for a time in the tensile force giving mode and after a predetermined length of time, said emergency locking seat belt retractor is in the tensile force cancel mode with an appropriate slack of the seat belt.
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