Safety belt system and belt winder
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United States of America Patent
Stats
-
Jul 22, 2014
Grant Date -
Jul 25, 2013
app pub date -
Jan 18, 2013
filing date -
Jan 20, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A belt winder for a safety belt system includes a belt reel for tightening or loosing the safety belt, and an electric motor for driving the belt reel. The motor includes a stator and a rotor rotatably mounted to the stator. The rotor includes an motor shaft, a commutator fixed to the motor shaft, a rotor core fixed to the motor shaft and rotor windings wound about teeth of the rotor core and electrically connected to segments of the commutator. The rotor windings include a plurality of winding units. Each winding unit includes at least two coils, the coils of each winding unit being wound about the same teeth and electrically connected to a same pair of segments in parallel. A safety belt system incorporating the belt winder is also provided.
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Family
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