Mode Detection Switch Assembly for Self-Locking Dual-Mode Seat Belt Retractor

A dual-mode retractor for an automotive seat belt webbing is configured to switch between a first mode and a second mode, the first mode being one of an ELR mode and an ALR mode, and the second mode being the other one of the ELR mode and the ALR mode. The retractor switches between the first mode a...

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Hauptverfasser: PRENTKOWSKI DAVID, VANWAMBEKE BRYAN M, ELLINGTON THOMAS, WEBB DANIEL K
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A dual-mode retractor for an automotive seat belt webbing is configured to switch between a first mode and a second mode, the first mode being one of an ELR mode and an ALR mode, and the second mode being the other one of the ELR mode and the ALR mode. The retractor switches between the first mode and the second mode via a relative movement between a first part and a second part of the retractor. The magnetic field of a permanent magnet mounted on the first part is picked up by a Hall effect sensor. An interrupter plate is mounted on the second part in a position relative to the magnet, in which the interrupter plate, in which the interrupter plate exposes the HED to the original magnetic field in the first mode and to a modified magnetic field in the second mode.