Seat belt presenter and vehicle seat with a seat belt presenter
The present invention relates to a seat belt presenter ( 1 ) for a seat belt system of a motor vehicle with a presenter arm with a guide component for a seat belt ( 3 ) of the seat belt system arranged on said arm, a drive system driving the presenter arm in an extension movement from a parked position into a presenting position, and a housing on which the presenter arm is guided, wherein the housing is formed by a hollow section with an elongate first chamber ( 23 ), in which the presenter arm is arranged, and the first chamber ( 23 ) has a shape determining the course of the extension movement in the direction of the extension movement of the presenter arm.
1. A seat belt presenter for a seat belt system of a motor vehicle, comprising:
a presenter arm with a guide component provided thereon for a seat belt of the seat belt system, the presenter arm having a toothing,
a housing, on which the presenter arm is guided, wherein the housing is formed by a hollow section with an elongate first chamber, in which the presenter arm is arranged,
a drive system driving the presenter arm in an extension movement from a parked position into a presenting position,
the drive system having a worm gear which is driven in a rotational movement, and engages in the toothing of the presenter arm and during a rotational movement, drives the presenter arm in the extension movement as a result of the engagement in the toothing, the drive system has a flexible shaft, which can be driven in a rotational movement and with which the first worm is connected in a rotationally fixed manner,
the presenter arm having a second chamber, in which the drive system engages with a dimensionally stable guide bar, the flexible shaft and the worm gear supported by the guide bar, and
the first chamber has a shape defining the course of the extension movement in the direction of the extension movement of the presenter arm.
2. The seat belt presenter according to claim 1 , wherein
the housing is formed by at least two shell-shaped housing components, which complement one another in an assembled form to form the hollow section.
3. The seat belt presenter according to claim 1 , wherein
the presenter arm is curved, and the first chamber has a curvature identical to the curvature of the presenter arm.
4. The seat belt presenter according to claim 1 , wherein
a sliding surface or a contact surface, on which the presenter arm is guided and mounted, is provided in the housing.
5. The seat belt presenter according to claim 1 , wherein
the drive system is arranged at least in portions in the first chamber.
6. The seat belt presenter according to claim 1 , wherein
the guide component is fixed with a fastening attachment in the second chamber of the presenter arm.
7. The seat belt presenter according to claim 1 , wherein
the cross-section of the first or the second chamber has a polygonal shape, on which the presenter arm is supported in a rotationally fixed manner in relation to its longitudinal axis.
8. The vehicle seat with a seat belt presenter according to claim 1 , wherein
the seat belt presenter is fastened to a backrest and projects with the housing into a free space formed by a seat structure.