Abstract: A seat belt system (10) has a control unit (14) and a seat belt (16) which includes a webbing (18) and a belt retractor (20). The belt retractor (20) comprises a belt reel (28) for the webbing (18), a rotation angle sensor (30) with a sensor unit and a rotatable measuring element, and a gear unit coupling the belt reel (28) to the measuring element. The belt reel (28) has a fully extended position and a ghost position. Furthermore, the gear unit is designed so that the gear unit reduces the rotation of the belt reel (28), when the belt reel (28) is adjusted from the ghost position to the fully extended position, to a maximum of 1.0 revolutions of the measuring element. In addition, a method for determining the extension length of a webbing (18) of a seat belt system (10) wound on a rotatable belt reel (28) is provided.

Abstract: A belt retractor device for a vehicle comprises a first device component (12), a second device component (14) and a detent mechanism (16) including a first detent element (26) and a second detent element (28). The first detent element (26) has at least two stops (58) which are offset from each other in the radial direction and in the axial direction relative to a mounting axis (20). The second detent element (28) includes a detent edge (40) configured to engage in one of the stops (58) of the first detent element (12) and to prevent the first device component (12) and the second device component (14) from moving relative to each other against the mounting direction of the mounting axis (20).

Abstract: A seatbelt system for a vehicle comprises a webbing (28), a belt retractor, a belt reel (16) and a belt reel angle sensor (22) having a first gearwheel assembly (32) and a second gearwheel assembly (36). The belt reel angle sensor (22) includes a multi-stage gearing (58) having a first gear stage with a first reduction ratio and a second gear stage with a second reduction ratio. The belt reel angle sensor (22) further comprises a rotation angle sensor (64) and a rotation angle transmitter (34) associated with the rotation angle sensor (64) as well as a reference signal sensor (68) and a reference signal transmitter (38) associated with the reference signal sensor (68). The rotation angle transmitter (34) is associated with the first gearwheel assembly (32) and the reference signal transmitter (38) is associated with the second gearwheel assembly (36).

Abstract: In a coupling (18) for a belt tensioner (10) in a vehicle comprising an input element (26), an output element (34), a coupling element (28) which is movably supported between an initial position and an activated position and in the activated position couples the input element (26) to the output element (34), and a control element (36) which upon movement of the input element (26) relative to the control element (36) moves the coupling element (28) between the initial position and the activated position, the control element (36) is coupled to an inertia mass (36).

Abstract: The invention relates to a belt retractor comprising a signal transmitter ring (6) for a magnetic sensor (34), comprising a hub (14) which is connected to the belt reel in a rotationally fixed manner and comprising a signal transmitter portion (20) exhibiting periodically varying material properties when viewed in the circumferential direction, wherein the signal transmitter portion includes a stop (30) by which it abuts against a contact surface (32) associated therewith, and comprising a spring portion (18) acting on the signal transmitter portion relative to the hub so that the stop abuts against the contact surface.

Abstract: The invention relates to a belt retractor comprising a signal transmitter ring (6) for a magnetic sensor (34). comprising a hub (14) which is connected to the belt reel in a rotationally fixed manner and comprising a signal transmitter portion (20) exhibiting periodically varying material properties when viewed in the circumferential direction, wherein the signal transmitter portion includes a stop (30) by which it abuts against a contact surface (32) associated therewith, and comprising a spring portion (18) acting on the signal transmitter portion relative to the hub so that the stop abuts against the contact surface.

Abstract: A belt retractor (10) is provided with a retractor shaft (12) and a device (26) for determining the rotational speed and/or the angle of rotation of the retractor shaft (12), with a rotating magnetic element (18), a stationary magnetic field sensor (24) and a stationary element guiding the magnetic flux (20) arranged between the rotating magnetic element (18) and the magnetic field sensor (24).

Abstract: In a coupling (18) for a belt tensioner (10) in a vehicle comprising an input element (26), an output element (34), a coupling element (28) which is movably supported between an initial position and an activated position and in the activated position couples the input element (26) to the output element (34), and a control element (36) which upon movement of the input element (26) relative to the control element (36) moves the coupling element (28) between the initial position and the activated position, the control element (36) is coupled to an inertia mass (36).

Abstract: A belt buckle feeder (10) comprises a belt buckle (18), a stationary base member (12) to be mounted fixedly on the vehicle and a motor-driven slide (16) movably supported on the base member (12) to which the belt buckle (18) is coupled, wherein the slide (16) encloses the base member (12) at least in portions.

Abstract: A controllable clutch (18) for a belt tensioner (16) comprises a drive member (32), a driven element (24) and a clutch pawl (40) that is movably supported on the input side (30) between a home position and an engaged position and in the engaged position couples the drive member (32) to the driven element (24), wherein the clutch pawl (40) is tension-loaded in the engaged position.

Abstract: A control (18) for a seat belt positioning device (10) includes a motor (12) for positioning a seat belt component (16). A locking tongue sensor (20) generates a locking tongue signal (S) depending on whether a locking tongue is inserted in a belt buckle (16). A trigger circuit (22) connected to the locking tongue sensor (20) generates a trigger signal (TR, TR1, TR2, VT, TM) in response to the locking tongue signal (S) A timer (32) or a motor load circuit (33) connected to the trigger circuit (22) generates a motor signal (M) having a predetermined period or depending on a motor load in response to the trigger signal (TR, TR1, TR2, VT, TM). A motor control circuit (34) connected to the timer (32) and the trigger circuit (22) turns the motor on and off in response to the motor signal (M). The direction of motion of the motor (12) is selected depending on the trigger signal (TR, TR1, TR2, VT, TM).

Abstract: A belt retractor (10) is provided with a retractor shaft (12) and a device (26) for determining the rotational speed and/or the angle of rotation of the retractor shaft (12), with a rotating magnetic element (18), a stationary magnetic field sensor (24) and a stationary element guiding the magnetic flux (20) arranged between the rotating magnetic element (18) and the magnetic field sensor (24).

Abstract: A belt buckle feeder (10) comprises a belt buckle (18), a stationary base member (12) to be mounted fixedly on the vehicle and a motor-driven slide (16) movably supported on the base member (12) to which the belt buckle (18) is coupled, wherein the slide (16) encloses the base member (12) at least in portions.

Abstract: A belt buckle feeder for a vehicle seat belt system includes a spindle drive and a belt buckle (12) mounted on a spindle (14) of the spindle drive, the belt buckle being movable in height via a spindle nut (26) located on the spindle (14). A safety mechanism comprising at least one locking element (44) is provided which is configured so that the locking element (44) enters into force fit and/or form fit with the spindle (14), when a predetermined force threshold is exceeded, and introduces force acting on the belt buckle (12) in the extending direction (R) of the spindle (14) into a mounting point fixed to the vehicle white bypassing the spindle drive.

Abstract: A positioning device (12), especially for a vehicle seat belt feeder, comprises a flexible load-bearing element (16) and a molded part (18) comprising a plurality of molded elements (20) each of which annularly surrounds the elastic load-bearing element (16) and includes axial bearing surfaces. The axial bearing surfaces of the molded elements (20) include a surface structure which is configured so that two neighboring molded elements (20) loaded against each other contact each other with their axial bearing surfaces, are in positive engagement and are orientated in the radial direction at a defined position relative to each other, A belt buckle device (10) comprises an afore-described positioning device (12) as well as a belt buckle (14) that is fastened to the load-bearing element (16).

Abstract: A belt buckle feeder for a vehicle seat belt system includes a spindle drive and a belt buckle (12) mounted on a spindle (14) of the spindle drive, the belt buckle being movable in height via a spindle nut (28) located on the spindle (14). A safety mechanism comprising at least one locking element (44) is provided which is configured so that the locking element (44) enters into force fit and/or form fit with the spindle (14), when a predetermined force threshold is exceeded, and introduces force acting on the belt buckle (12) in the extending direction (R) of the spindle (14) into a mounting point fixed to the vehicle white bypassing the spindle drive.

Abstract: A positioning device (12), especially for a vehicle seat belt feeder, comprises a flexible load-bearing element (16) and a molded part (18) comprising a plurality of molded elements (20) each of which annularly surrounds the elastic load-bearing element (16) and includes axial bearing surfaces. The axial bearing surfaces of the molded elements (20) include a surface structure which is configured so that two neighboring molded elements (20) loaded against each other contact each other with their axial bearing surfaces, are in positive engagement and are orientated in the radial direction at a defined position relative to each other, A belt buckle device (10) comprises an afore-described positioning device (12) as well as a belt buckle (14) that is fastened to the load-bearing element (16).

Abstract: A controllable clutch (18) for a belt tensioner (16) comprises a drive member (32), a driven element (24) and a clutch pawl (40) that is movably supported on the input side (30) between a home position and an engaged position and in the engaged position couples the drive member (32) to the driven element (24), wherein the clutch pawl (40) is tension-loaded in the engaged position.

Abstract: A belt retractor (10) comprising a frame, a belt reel, a first force limiting means (30) coupled to the belt reel and a second force limiting means (32), wherein the second force limiting means (32) can be locked and the first force limiting means (30) is arranged functionally in series with the second force limiting means (32), is characterized in that the second force limiting means (32) includes a deformation element (52) and at least one deforming member (26, 54) fixed to the frame, the deformation element (52) being adapted to be rotated relative to the deforming member (26, 54) when the second force limiting means (32) is activated, whereby the deformation element (52) is deformed.

Abstract: The invention relates to a reversible belt tensioner (10) comprising a drive motor (12), a spindle (14) connected to the drive motor (12), a spindle nut (16) adapted to be displaced in axial direction (18) on the spindle (14), a catch (20) the one end of which is connected to the spindle nut (16) and a belt buckle (22) connected to the other end of the catch (20), wherein at least one of the following features prevents the spindle nut (16) from jamming during travel against block: a cylindrical guiding portion (50) inside the spindle nut (16) interacting with the outer geometry of the spindle (14); a freewheel mechanism (48) between the drive motor (12) and the spindle (14); a compression spring (70) between the belt buckle (22) and a stop.