Device for tensioning a safety belt
AssigneeTRW Occupant Restraint Systems GmbH & Co. KG
InventorsThomas Mödinger, Joachim Biller
Life of this patent
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Abstract
A device for tensioning a safety belt includes a motor and a traction transmission device having a first end and a second end. The second end of the traction transmission device is coupled to a belt buckle or an end fitting of the safety belt. The motor is constructed as a tensioner drive for an emergency tensioning. The traction transmission device is coupled to the motor such that a drive movement of the motor is converted into a longitudinal movement of the traction transmission device.
Claims17
A device for tensioning a safety belt, said device comprising a motor and a traction transmission device having a first end and a second end, said second end of said traction transmission device being coupled to one of a belt buckle and an end fitting of said safety belt, said motor being constructed as a tensioner drive to perform an emergency tensioning of said safety belt, said traction transmission device being coupled to said motor such that a drive movement of said motor is converted into a longitudinal movement of said traction transmission device.
A device for tensioning a safety belt, said device comprising a motor and a traction transmission device having a first end and a second end, said second end of said traction transmission device being coupled to one of a belt buckle and an end fitting of said safety belt, said motor being constructed as a tensioner drive for an emergency tensioning, said traction transmission device being coupled to said motor such that a drive movement of said motor is converted into a longitudinal movement of said traction transmission device, wherein a threaded sleeve having an internal thread is coupled to said motor and a threaded body is provided which has an external thread matching with said internal thread, said first end of said traction transmission device being secured to said threaded body.
A device for tensioning a safety belt, said device comprising a motor and a traction transmission device having a first end and a second end, said second end of said traction transmission device being coupled to one of a belt buckle and an end fitting of said safety belt, said motor being constructed as a tensioner drive for an emergency tensioning, said traction transmission device being coupled to said motor such that a drive movement of said motor is converted into a longitudinal movement of said traction transmission device, wherein said motor is a brushless direct current motor having an internal rotor, said internal rotor of said motor has an internal thread into which an external thread of a threaded body engages, said first end of said traction transmission device being secured to said threaded body.
A device for tensioning a safety belt, said device comprising a motor and a traction transmission device having a first end and a second end, said second end of said traction transmission device being coupled to one of a belt buckle and an end fitting of said safety belt, said motor being constructed as a tensioner drive to perform an emergency tensioning of said safety belt, said emergency tensioning occurring after pre-tensioning of the safety belt and during a vehicle impact to supply high force to a vehicle occupant during the impact, said traction transmission device being coupled to said motor such that a drive movement of said motor is converted into a longitudinal movement of said traction transmission device.
Dependencies are inferred from the claim text.