Mode detection switch assembly for self-locking dual-mode seat belt retractor
US9150193B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2012 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Jan 10, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R22/36
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.