Safety belt delivery system for a vehicle and vehicle having a safety belt delivery system

Abstract

The invention relates to a belt feeder system (10) for a vehicle (1), comprising a guide rod (14) on one end of which a belt feeder (12) is arranged, and a drive motor (20) with a drive worm (22), which is in operative connection with the guide rod (14) by means of at least one gear wheel (30, 32), such that by operating the motor (20) the belt feeder (12) can be moved from a rest position into an active position, the operative connection being designed such that a double helical gear wheel (30) or two helical gear wheels (32, 34) mesh into a toothing (16) of the guide rod (14), the toothing (33, 35) of the double helical gear wheel or of the two helical gear wheels being mirror-symmetrical to one another. Furthermore, a vehicle with a belt feeder system is proposed.

Description

Technical Field

[0001] The present invention relates to a seat belt delivery system for a vehicle and a vehicle having a seat belt delivery system. Background Technology

[0002] Seatbelt delivery systems are known. They typically include an electrically movable seatbelt delivery unit capable of moving from a stationary position to an active position, wherein the delivery unit moves with the seatbelt so that a vehicle occupant can easily grab the seatbelt. After the seatbelt is fastened, the delivery unit returns to its original position. Such a seatbelt delivery system is known, for example, by US2016 / 0207496 A1.

[0003] The aim is to provide a seatbelt delivery system that is inexpensive to manufacture, enables precise guidance of the seatbelt, and operates with low noise. Furthermore, the seatbelt delivery system should be spatially optimized. Summary of the Invention

[0004] In this context, the object of the present invention is to propose an improved solution for how to construct a seat belt delivery system.

[0005] This objective is achieved by the device according to claim 1 and the vehicle according to claim 4. Other advantageous designs are obtained from the dependent claims.

[0006] A seatbelt delivery system for vehicles is proposed, comprising: a guide rod with a seatbelt delivery device disposed at one end; and a drive motor with a drive worm gear, the drive worm gear being operatively connected to the guide rod via at least one gear, such that the seatbelt delivery device can be moved from a rest position to an activated position by operating the motor. Here, the operative connection is designed such that one or two helical gears (the teeth of the helical gear or the two helical gears being mirror-symmetrical to each other) mesh with the teeth of the guide rod. Thus, the guide rod is automatically centered, and the operating noise of the gears is minimized.

[0007] Furthermore, one design specifies that the drive worm meshes with the teeth of a double helical gear or with the teeth of one of the two helical gears. This results in a particularly simple and compact structure for the seatbelt delivery system.

[0008] A particularly compact structure is achieved in a design where the guide rod is positioned on the side of the gear opposite to the drive worm.

[0009] The seatbelt delivery system described above offers the following advantages: the guide rod is automatically centered. The housing can be scaled down in the Y direction and can be used as the same component for both the left and right sides. It is anticipated that the structure, with its helical teeth, can withstand greater forces, become quieter, and reduce "wobbling" through automatic centering. Furthermore, a cost advantage is expected if only one drive variant for both the left and right sides can be integrated space-savingly along the Y direction.

[0010] Furthermore, a vehicle, particularly a motor vehicle, is proposed that has a seatbelt delivery system as described above. This vehicle achieves the same advantages and technical effects as described for the seatbelt delivery system.

[0011] In one design, the seatbelt delivery system is configured to move the guide bar substantially along the x-direction of the vehicle.

[0012] By moving from a stationary position to an active position, the seatbelt delivery device essentially moves forward within the vehicle. "Essentially" in this context should mean that the guide rod can also move slightly at an angle relative to the vehicle's longitudinal axis, or perform an arcuate motion, with the primary movement occurring along the x-direction. In this design, the motor, gear, and guide rod with their drive worm gear are preferably arranged vertically overlapping along the z-direction of the vehicle. This configuration allows the seatbelt delivery system to have a particularly small size along the y-direction of the vehicle.

[0013] In one design, the seatbelt delivery system is integrated into the vehicle's side panel. For example, a guide bar may be positioned in the rear side panel behind the driver's or front passenger's seat along the x-direction. The seatbelt delivery device may, for example, rest against the side panel and move forward past the seat back by the movement of the guide bar.

[0014] The above-described structural arrangement of the seatbelt delivery system is particularly advantageous when the vehicle body lacks a B-pillar for fixing the seatbelt steering point. In one design, the seatbelt delivery device is located in a motor vehicle without a B-pillar (e.g., a convertible or coupe).

[0015] Further advantages, features, and details of the invention will become apparent from the following description, which details embodiments of the invention with reference to the accompanying drawings. Here, the features mentioned in the claims and in the description, whether individually or in any combination, can be important to the invention. The term "capable" used in this application refers both to technical possibility and to actual technical implementation. Attached Figure Description

[0016] The embodiments are described below with the aid of the accompanying drawings. The schematic diagrams show: Figure 1This is a side view of an exemplary seatbelt delivery system; Figure 2 This is a partial cross-sectional view of an exemplary seatbelt delivery system; Figure 3 An exemplary vehicle is a vehicle equipped with a seatbelt delivery system; and Figure 4 yes Figure 4 A detailed view of the seatbelt delivery system in the vehicle is shown. Detailed Implementation

[0017] Figure 1 A side view of an exemplary seatbelt delivery system 10 for a motor vehicle is shown. A seatbelt delivery device 12 is disposed at the end of a guide rod 14, which is movable along its longitudinal axis. The rod is driven by an electric motor 20 with a drive worm gear 22, the torque of which is transmitted to teeth 16 disposed in the guide rod 14 via at least one gear 30. Furthermore, the seatbelt delivery system 10 may also have a housing, not shown.

[0018] Figure 2 A partial cross-sectional view of an exemplary seatbelt delivery system 10 is shown. Between the guide rod 14 and the drive worm 22, two helical gears 32 and 34, configured as mirror images of each other and having helical teeth 33 or 35, are arranged on a common shaft 40. Alternatively, a double helical gear 30 with two helical teeth 33, 35 in opposite directions can be used instead of these two gears 32, 34. One of the helical teeth 33 meshes into the teeth of the worm drive. The guide rod 14 is arranged on the side of the gear 30 or gears 32, 34 opposite to the drive worm 22. This guide rod has teeth 16 corresponding to and meshing with the helical teeth 33, 35. When the motor is running, the rotational motion of the worm 22 is converted into linear motion of the guide rod 14, causing the guide rod to move in or out of the drawing plane. The seat belt deliverer 10 moves accordingly between a stationary position and an active position, in which the seat belt is easily accessible and grasped by the vehicle occupants by the drive of the seat belt deliverer.

[0019] Figure 3 A coupe-style vehicle 1 is shown, which has an exemplary seatbelt delivery system 10. The seatbelt delivery system is integrated into the side panel at the rear of the vehicle 1. Figure 4 A detailed view of the seatbelt delivery system 10 arranged in the vehicle 1 is shown. When the motor 20 is operated, the seatbelt delivery device moves forward toward the driver's seat, wherein the guide rod performs a movement substantially oriented in the x-direction of the vehicle 1. To achieve particularly small structural dimensions in the y-direction of the vehicle, the motor 20 with drive worm gear 22, gear 30 or gears 32 and 34, and drive rod 14 are arranged vertically overlapping in the z-direction.

[0020] The basic principle of this invention is that a mirror-symmetrical second helical gear or a double helical gear can be directly driven by a worm gear. The double helical gear can directly drive a guide rail (rod), which is thus automatically centered. The housing can be correspondingly reduced in the Y direction and used as the same component on both the left and right sides of the vehicle. It is anticipated that this structure, through helical gear meshing, can withstand greater forces, become quieter, and reduce "wobbling" through automatic centering.

[0021] List of reference numerals

[0022] 1 vehicle

[0023] 10. Seatbelt delivery system

[0024] 12 Seatbelt Delivery Device

[0025] 14 guide rods

[0026] 16. The teeth of the guide rod

[0027] 20 Electric motors

[0028] 22 Drive worm gear

[0029] 30 Double helical gears

[0030] 32 and 34 helical gears

[0031] 33, 35 Helical teeth

[0032] 40 axis

Claims

1. A seatbelt delivery system (10) for a vehicle (1), the seatbelt delivery system comprising: A guide rod (14) with a seat belt delivery device (12) arranged at one end of the guide rod. and A drive motor (20) with a drive worm gear (22), the drive worm gear being operatively connected to the guide rod (14) via at least one gear (30, 32), allows the seatbelt delivery device (12) to be moved from a rest position to an active position by operating the motor (20). The functional connection is designed such that one double helical gear (30) or two helical gears (32, 34) mesh into the teeth (16) of the guide rod (14), wherein the teeth (33, 35) of the double helical gear or the two helical gears are mirror-symmetrical to each other.

2. The seatbelt delivery system according to claim 1, wherein, The drive worm (22) meshes into the teeth (33) of the double helical gear (30) or into the teeth of one of the two helical gears (32).

3. The seatbelt delivery system according to any one of the preceding claims, wherein, The guide rod (14) is arranged on the side of the gear (30, 32) opposite to the drive worm (22).

4. A vehicle (1) comprising a seatbelt delivery system (10) according to any one of the preceding claims.

5. The vehicle according to claim 4, wherein, The seatbelt delivery system (10) is configured to move the guide bar (14) substantially along the x-direction of the vehicle (1).

6. The vehicle (1) according to claim 4 or 5, wherein, The guide rod (14) is integrated into the side panel of the vehicle (1).

7. The vehicle according to any one of claims 4 to 6, wherein the vehicle is a motor vehicle without a B-pillar.

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