Patent application number | Description | Published |
20110147510 | REVERSIBLE SEAT BELT TENSIONER - A reversible seat belt tensioner includes an electric motor ( | 06-23-2011 |
20110297777 | REVERSIBLE BELT TENSIONER - A reversible belt tensioner ( | 12-08-2011 |
20130193252 | REVERSIBLE SEAT BELT TENSIONER - A reversible seat belt tensioner includes an electric motor ( | 08-01-2013 |
20130256445 | Safety belt retractor having a pretensioning device - A safety belt retractor, especially for use in motor vehicles, is provided, and has a blocking system and a tensioning device, which acts on a belt shaft, for carrying out a reversible pretensioning of an occupant. A spiral toothing meshes with an external toothing of the belt shaft, and is supported against a fixed counter-bearing such that upon an axial loading of the spiral toothing directed against the counter-bearing due to load acting on the belt shaft in a belt withdrawal direction, rotation of the spiral toothing, for receiving torque applied by the belt shaft, is prevented via a support force. An electric motor is coupled to the belt shaft via the spiral toothing. | 10-03-2013 |
20130334356 | Belt tensioner drive - The invention relates to a belt tightening drive for tightening a safety belt which can be wound up around a winding shaft, said belt tightening drive comprising an electric motor, a spindle shaft and a output wheel coupled with the winding shaft and a worm gear, by way of which the output wheel is driven by the spindle shaft, wherein for the formation of the worm gear an external helical gear of the output wheel is combing with a worm drive supported torsionally rigid on the spindle shaft and it is provided according to the invention that the external gear of the output wheel comprises at least two gear sections, wherein a first gear section comprises a gear with constant geometry and a following second gear section is designed with an increasing root circle diameter and/or increasing tip circle diameter and/or increasing tooth thickness. | 12-19-2013 |
20140312155 | Belt tightening drive - The invention is a belt tightening drive for tightening a seat belt that can be wound about a winding shaft, comprising a spindle shaft driven by a drive unit and a worm drive with a worm supported in a torque-proof fashion on the spindle shaft and a driven wheel, engaged therewith and supported in a torque-proof fashion on the winding shaft. According to the invention it is provided that the worm comprises a first toothed section with a first toothed geometry, wherein the first position of the worm the first toothed section engages the driven wheel, the worm comprises at least a first toothed section and following a second toothed section with a second toothed geometry, with the first and second toothed geometries being embodied differently. | 10-23-2014 |