Method for producing a vehicle and a seat belt device

Abstract

The invention relates to a method for producing a vehicle, wherein accessories are mounted on a vehicle body (1) in a production line (P) of a vehicle manufacturing plant, accessory transponders are respectively fixed to the accessories, and after the respective accessories are installed in the vehicle, the accessory transponders are detected by means of an RFID reader (37) for recording the state of the vehicle, wherein in the production line (P), a belt retractor (23) of a seat belt device (19) is installed as an accessory in a hollow space (11) of a vehicle body pillar (5) formed as a hollow carrier. According to the invention, a belt retractor transponder (35) is assigned to the belt retractor (23). The belt retractor transponder (35) is not directly fixed to the belt retractor (23), but is fixed to the webbing (25) of the belt retractor (23) outside the hollow space (11) of the vehicle body pillar.

Description

Technical Field

[0001] The invention relates to a method for producing a vehicle and to a seat belt arrangement for such a vehicle 10 . Background Art

[0002] In vehicle production, the vehicle bodies are transferred in a vehicle manufacturing plant along a series of workstations on a production line, at which accessories can be mounted on the vehicle bodies. For automated documentation of the construction status, the accessories can be individually marked with an RFID transponder. The accessories can be scanned by an RFID gate that acts as a reader at the end of the production line, whereby the respectively associated accessories can be recorded. In RFID technology, the communication between the RFID transponder and the reader takes place wirelessly or contactlessly via radio transmission. No direct visual contact is required.

[0003] In this type of method, the belt retractor of the seat belt device is positioned in the hollow space of the hollow carrier formed as a sheet material during vehicle production. The belt retractor installed in the hollow space of the vehicle body pillar is largely shielded from the electromagnetic field emitted by the RFID door. Due to this shielding, RFID technology for belt retractors is not used in the prior art.

[0004] A seat belt with a warning system is known from patent document CN 106274792 A. A seat belt system is known from patent document DE 102007 058 278 A1. Further seat belt systems are known from patent documents US 2018 / 0072255A1, WO 98 / 32190A2, WO 2009 / 008949 A1 and WO 2016 / 145054A1. Summary of the invention

[0005] The object of the present invention is to provide a method for producing a vehicle in which an automated documentation of the construction state of a belt retractor installed in a vehicle body is achieved in a simple manner.

[0006] This technical problem is solved by the features of the present invention. Preferred embodiments of the present invention are disclosed in preferred exemplary embodiments.

[0007] The invention is based on the fact that in the prior art, accessories suitable for the use of RFID technology are directly marked with the associated accessory transponder. The marking of the accessory is carried out before installation in the vehicle body. In contrast, according to a characteristic part of the invention, the belt retractor is not directly marked with the belt retractor transponder. Instead, the belt retractor transponder is positioned independently of the belt retractor, more precisely at the webbing of the belt retractor outside the hollow space of the vehicle body pillar. In this way, the belt retractor transponder is exposed in the vehicle interior of the vehicle body and can thus communicate data with a reading device.

[0008] According to the invention, therefore, use is made of the fact that the belt retractor together with the webbing and the belt end fitting at the end of the webbing is a component of a seat belt arrangement. In the production line, the seat belt arrangement is installed in the vehicle body as an integrated pre-assembled unit or as an accessory. In the installed state, the belt end fitting of the seat belt arrangement can be fastened in the vehicle interior to the end fitting tensioner or directly to the vehicle body in a positionally fixed manner.

[0009] In terms of interference-free data communication between the belt retractor transponder and the RFID reader, it is preferred that the belt retractor transponder is largely protected from mechanical loads or damage during vehicle assembly in the production line. In this context, it is preferred to fasten the belt retractor transponder directly to the webbing end of the webbing leading out of the belt retractor.

[0010] In normal practice, the connection of the webbing end to the belt end fitting can be realized as follows: the webbing can be rolled up at the webbing end, more precisely to form a webbing loop, which is guided through the webbing eye of the belt end fitting. The belt end fitting can be mounted directly on the vehicle body or, as an alternative to this, on the end fitting tensioner. The rolled-up section of the webbing forms a double-layer structure together with the remaining webbing, wherein the two webbing layers are connected to each other, in particular sewn. With regard to an installation position that is protected from external environmental influences, it is preferred to integrate the belt retractor transponder into the double-layer structure consisting of the rolled-up section of the webbing and the webbing. With regard to a fixing that is particularly simple in terms of manufacturing technology, it is preferred that the belt retractor transponder is arranged between the two webbing layers and sewn into them.

[0011] In the case of mass production, the seat belt device can be pre-assembled in the supplier's factory. In this case, the belt retractor transponder can already be connected to the webbing at the supplier's factory.

[0012] In common practice, the tape retractor transponder can consist of a chip and an antenna. In a variant embodiment, the tape retractor transponder can be held together with a plurality of further tape retractor transponders on a continuous film tape. The continuous film tape can be wound on a reel. During the production of the webbing, the continuous film tape can be integrated into the webbing with longitudinal extension in the longitudinal direction of the webbing and can be positioned between two webbing layers. In this case, the continuous film tape can extend completely over the entire webbing length.

[0013] In another embodiment, the webbing can have a single-layer structure with warp and weft threads woven together. At least one of the warp threads modified can have antenna characteristics of an RFID transponder. In this case, at least one transponder chip can be positioned on the webbing surface and in contact with the modified warp threads. The transponder chip can be fixed on the webbing surface in different ways. For example, the transponder chip can be positioned between a chip carrier and the webbing surface. The chip carrier can be made of plastic and can be connected to the webbing in a material-matched manner by thermoforming.

[0014] As an alternative to this, the single-layer webbing can have a double-layer structure of weft threads, more precisely, weft threads that overlap in the thickness direction of the webbing. The modified warp threads can be located between two weft threads, thereby protecting the modified warp threads from external mechanical influences. The modified warp threads can only be exposed to the outside at the contact points. At the exposed contact points, the transponder chip can contact the modified warp threads that are exposed to the outside.

[0015] Furthermore, the belt retractor transponder can be designed as a standard transponder which can be glued or sewn onto the finished webbing, for example, at the webbing end. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Embodiments of the present invention will be described below with reference to the accompanying drawings.

[0017] In the attached picture:

[0018] Figure 1 The side wall vehicle body structure in which the seat belt device is installed is shown in a cross-sectional view along the section yz;

[0019] Figure 2 The end of the webbing connected to the belt end fitting is shown in an enlarged partial view;

[0020] Figure 3 shows views illustrating process steps of a production line of a vehicle manufacturing plant; and

[0021] Figures 4 to 8 A further embodiment of the invention is shown. DETAILED DESCRIPTION

[0022] exist Figure 1 The side wall component group of the vehicle body 1 is shown in a cross-sectional view. The vehicle body 1 has a sill 3 on the bottom side, which extends between the vehicle body pillars in the longitudinal direction x of the vehicle, wherein Figure 1 The B-pillar 5 is shown as an example in FIG. The B-pillar 5 connects the door sill 3 to the roof structure of the vehicle body 1 in the height direction z of the vehicle. Figure 1 In the embodiment, the B-pillar 5 is constructed as a hollow panel carrier, having an inner panel 7 facing the vehicle interior 20 and an outer panel 9 outside the vehicle. The hollow panel carrier formed by the inner panel 7 and the outer panel 9 defines a hollow profile 11, which extends in the vehicle height direction z and is substantially closed in cross section. In the hollow profile 11, a reinforcing panel 13 extends in the vehicle height direction z. Figure 1 In the embodiment of the present invention, assembly openings 15 , 16 are formed in the panel inner part 7 and in the reinforcement panel 13 , so that the belt retractor 23 can be arranged in the hollow profile 11 of the B-pillar 5 .

[0023] The belt retractor 23 is a component of the seat belt arrangement 19. The seat belt arrangement additionally has a webbing 25 leading from the belt retractor 23, a height-adjustable deflection fitting 26 for the webbing 25, a belt deflector 24 and a belt end fitting 21 connected to a webbing end 27. Figure 1 In FIG. 1 , the belt end fitting 21 is shown as still being in a disassembled state. The belt end fitting 21 can be fixedly mounted on the vehicle body by means of a threaded connection position. Figure 1 In FIG. 5 , the panel inner part 7 of the B-pillar 5 as well as the deflection fitting 26 and the belt deflector 24 are covered by the lining 17 shown so that they are not visible.

[0024] In order to be connected to the belt end fitting 21, the webbing 25 is rolled up at the belt end fitting 27, more precisely forming a webbing loop 29 ( Figure 2 ), the webbing loop is guided through the webbing eyelet 31 of the belt end fitting 21. Figure 1 or Figure 2 In the embodiment, the webbing roll-up section 33 and the webbing 25 form a double-layer structure, wherein the two webbing layers are sewn to each other. A webbing retractor transponder 35 is sewn between the two webbing layers (i.e., the webbing 25 and the webbing roll-up section 33). The webbing retractor transponder can communicate data with the RFID gate 37 as a reading device at the end of the production line P. Therefore, the webbing retractor 23 actually positioned in the hollow profile 11 and shielded from the electromagnetic field of the RFID gate 37 can be detected by using RFID technology for automated construction status recording.

[0025] exist Figure 4 The material structure of the webbing 25 according to another embodiment is shown in an enlarged partial cross-sectional view. Figure 4The webbing 25 shown has a double-layer structure with two webbing layers 39, 41. The two webbing layers 39, 41 are sewn to each other (in a manner not shown). Figure 4 It can also be seen that each of the two fabric layers 39 , 41 is woven identically, specifically having warp threads 40 and weft threads 42 .

[0026] The continuous membrane strip 47 is provided between the two webbing layers 39, 41 in the webbing longitudinal direction L ( Figure 4 ) extends upward, according to Figure 5 On the film strip, at least one tape retractor transponder 35 consisting of a chip 43 and an antenna 25 is applied. The continuous film strip 47 extends completely over the entire length of the webbing 25. Figure 5 It can be seen that, in order to produce the webbing, a continuous film tape 47 is held on a reel 49. A total of a plurality of tape reel transponders 35 are applied to the continuous film tape 47. During the webbing production process, the film tape reel 49 is unwound, and the unwound continuous film tape 47 is positioned between two webbing layers 39, 41 in the longitudinal direction L of the webbing.

[0027] and Figure 4 On the contrary, Figure 6 In the embodiment, the webbing 25 is realized as a single-layer structure having warp threads 40 and weft threads 42 woven together. The modified warp threads 44 woven into the warp threads 40 have antenna characteristics of an RFID transponder. Figure 6 In the embodiment shown in FIG. 1 , the transponder chip 43 is positioned on the webbing surface 46 , more precisely in contact with the modified antenna warp 44 .

[0028] exist Figure 6 In the embodiment, the transponder chip 43 is positioned between the chip carrier 51 and the surface of the webbing, ie protected from external mechanical influences. The chip carrier 51 is connected with the webbing material in a materially bonded manner with its plastic material, for example by thermoforming.

[0029] exist Figure 7 2 shows a single-layer webbing 25 according to another embodiment. Therefore, a double-layer weft structure 53 is woven into the single-layer webbing 25. The double-layer weft structure 53 has weft layers 55 and 57 that overlap when viewed in the thickness direction of the webbing. The modified antenna warp 44 is located between the two weft layers 55 and 57. Figure 6 In the embodiment, the modified antenna warp is exposed outwardly at the contact point K, where the transponder chip 43 can be brought into contact with the modified warp 44. Figure 6 As shown, the transponder chip 43 can in turn be connected via its chip carrier 51 in a materially bonded manner to the webbing surface 46 .

[0030] exist Figure 82 shows a webbing 25 according to another embodiment variant, wherein the webbing retractor transponder 35 is implemented as a standard transponder. Figure 7 In the embodiment, the standard transponder is bonded or sewn to the webbing 25 at any suitable point. The belt retractor transponder 35 can be bonded to the end of the webbing, such as at Figure 8 As shown in .

[0031] Reference numerals list

[0032] 1 Body

[0033] 3 Threshold

[0034] 5 B-pillar

[0035] 7 Internals

[0036] 9 External parts

[0037] 11 Hollow Profile

[0038] 13 Reinforcement panels

[0039] 15, 16 Assembly opening

[0040] 17 Lining

[0041] 19 Seat belt device

[0042] 21 With end fittings

[0043] 23 With retractor

[0044] 25 Ribbon

[0045] 26 Height-adjustable deflection accessories

[0046] 27 Webbing end

[0047] 29 Webbing loops

[0048] 31 Ribbon Eyelets

[0049] 33 Ribbon Rolling Section

[0050] 35 Transponder with retractor

[0051] 37 RFID door

[0052] 39, 41 webbing layers

[0053] 40 Warp

[0054] 42 Weft

[0055] 43 Transponder chip

[0056] 44 Modified antenna warp

[0057] 45 Transponder Antenna

[0058] 46 Webbing surface

[0059] 47 Film tape

[0060] 49 volumes

[0061] 51 Chip carrier

[0062] 53 weft double layer structure

[0063] 55, 57 weft layer

[0064] K Contact point

[0065] L Ribbon longitudinal direction

[0066] P production line

Claims

1. A method for producing a vehicle, in which method, accessories are mounted on a vehicle body (1) in a production line (P) of a vehicle manufacturing plant, accessory transponders are respectively fixed to the accessories, and after the respective accessories are installed in the vehicle, the accessory transponders are detected by means of an RFID reader (37) for the purpose of constructing a status record, wherein: In the production line (P), a belt retractor (23) of a seat belt device (19) is installed as an accessory in a hollow space (11) of a vehicle body pillar (5) formed as a hollow carrier, characterized in that the belt retractor (23) is equipped with at least one belt retractor transponder (35), and the belt retractor transponder (35) is not directly fixed to the belt retractor (23), but is fixed to the webbing (25) outside the hollow space (11) of the vehicle body pillar of the belt retractor (23), in order to be connected to the belt end fitting (21), the webbing (25) is rolled up at the webbing end (27) to form a webbing loop (29), the webbing loop is guided through the webbing eyelet (31) of the belt end fitting (21), and the belt retractor transponder (35) is integrated in a two-layer structure consisting of the webbing rolled-up section (33) and the webbing (25).

2. The method according to claim 1, characterized in that A webbing (25) led out of the webbing retractor (23) has a webbing end fitting (21) at its webbing end (27), which is fixed to an end fitting tensioner in the vehicle interior (20) or fixed in position to the vehicle body (1).

3. The method according to claim 1, characterized in that The belt retractor transponder (35) has a chip (43) and an antenna (45).

4. The method according to claim 2, characterized in that: The belt retractor transponder (35) is fixed at the webbing end (27).

5. The method according to claim 1, characterized in that The webbing rolled-up section (33) and the webbing (25) form a double-layer structure in which two webbing layers are connected to each other.

6. The method according to claim 5, characterized in that In the double layer structure, two webbing layers are sewn to each other.

7. The method according to claim 1, characterized in that The belt retractor transponder (35) is arranged between the webbing roll-up section (33) and the webbing (25).

8. The method according to claim 7, characterized in that The belt retractor transponder (35) is sewn into the belt roll-up section (33) and the belt (25).

9. The method according to claim 3, characterized in that: The webbing retractor transponder (35) is held together with a plurality of further webbing retractor transponders (35) on a continuous film strip (47) which is integrated into the webbing (25) during webbing production in a longitudinally extended manner in the webbing longitudinal direction (L).

10. The method according to claim 9, characterized in that The continuous film strip can be wound onto a reel (49).

11. The method according to claim 9, characterized in that The continuous membrane strip (47) extends completely over the entire length of the webbing.

12. A seat belt device for installation in a vehicle body (1) according to the method of any one of the preceding claims, characterized in that The seat belt arrangement (19) comprises a belt retractor (23) which is marked with a belt retractor transponder (35) and the belt retractor transponder (35) is fastened to the webbing (25) led out of the belt retractor (23).

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