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US 2015/0367814 A1Published application
Safety Belt Retractor With a Two-Spring Comfort Function
AssigneeAutoliv Development AB
InventorRonald Jabusch
Life of this patent
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Abstract
The invention relates to a safety belt retractor that has a two-spring comfort function, a belt shaft which is rotatably mounted in a housing and on which a safety belt can be wound, and at least two return springs that are spring-loaded in the winding direction of the belt and act between the housing and the belt shaft. The return springs being able to be connect by one end to the belt shaft or the housing by means of a shift device that shifts as a function of the extraction length of the safety belt.
Claims18
A seatbelt retractor for a seatbelt having a two-spring comfort function comprising:
- a belt shaft rotatably supported in a housing, on which the seatbelt is windable, and
- a first and a second retraction spring each being spring-preloaded in the winding direction of the seat belt, acting between the housing and the belt shaft,
- the first and second retraction springs are disposed between the belt shaft and the housing so as to act in parallel, and
- at least one of the first and second retraction springs is connected by an end to the belt shaft or the housing via a switching device switching as a function of the extension length of the seatbelt.
1 more element
(canceled)
Dependencies are inferred from the claim text.