Patent ID: 8398012
Filing Date: 2013-03-19
Classification: B60R

Abstract:
1. A reversible seat belt tensioner comprising an electric motor generating a rotational movement, a belt shaft drivable in a belt winding direction by the electric motor via a drive wheel, and a drive shaft transmitting the rotational movement of the electric motor to the drive wheel, wherein the drive shaft is connected via a first helical gear unit to the drive wheel and via a second helical gear unit to the electric motor, the drive shaft having a first axis of rotation, the drive wheel having a second axis of rotation, and the electric motor having a third axis of rotation, the first and second axes of rotation being arranged with respect to each other at a first angle and the first and third axes of rotation being arranged with respect to each other at a second angle, at least one of the first and second angles being selected from the group consisting of an acute angle and an obtuse angle.