Side curtain mounting structure and vehicle body

Abstract

The application discloses a side air curtain mounting structure and a vehicle body, which comprise sheet metal, a roof, a side air curtain and a guide rail; the guide rail comprises a guide rail bottom plate, a guide rail mounting plate and a guide rail guide finish plate; the side air curtain is located in a guide rail groove of the guide rail; the guide rail bottom plate is between the sheet metal and the roof, the guide rail mounting plate is fixedly connected with the sheet metal, and the guide rail guide finish plate is overlapped with a lower end of the roof; when the side air curtain is unfolded, the guide rail guide finish plate can be separated from the lower end of the roof and guide the side air curtain to unfold. The side air curtain mounting structure and the vehicle body disclosed by the application can separate the guide rail guide finish plate from the lower end of the roof and move, swing, overturn or deform downward when the side air curtain is unfolded, and the side air curtain can be unfolded from an opening between the guide rail guide finish plate and the lower end of the roof, so that the roof can be effectively prevented from deforming, and the maintenance cost in the later period can be saved.

Description

Technical Field

[0001] This invention relates to the field of air curtain installation technology, and more particularly to a side air curtain installation structure and vehicle body. Background Technology

[0002] Side curtain airbags are a type of protective airbag in automobiles. They are typically installed in the B-pillar area. When a collision occurs, the side curtain airbags deploy from top to bottom to protect the occupants' heads.

[0003] In the prior art, such as the Chinese patent application document with publication number CN201501375U, the side curtain airbag is installed between the sheet metal and the roof trim (roof). The lower end of the roof trim abuts against the upper end of the pillar trim. When the side curtain airbag is deployed, the lower end of the roof trim is damaged and deformed, and the entire roof trim needs to be replaced later, resulting in high maintenance costs.

[0004] Therefore, it is necessary to provide a side curtain airbag mounting structure and vehicle body that can save maintenance costs. Summary of the Invention

[0005] The purpose of this invention is to provide a side curtain airbag installation structure and vehicle body, in which only the guide rails are deployed when the side curtain airbags are deployed, and the roof can be protected from deformation and damage, thus saving maintenance costs.

[0006] The present invention provides a side curtain air installation structure, including sheet metal, a canopy, a side curtain air, and a guide rail;

[0007] The guide rail includes a guide rail base plate extending along the length of the side curtain airbag, a guide rail mounting plate mounted on the guide rail base plate, and a guide rail guide trim panel mounted on the guide rail base plate and used as an interior trim panel that can guide the side curtain airbag to unfold.

[0008] A guide rail groove extending along the length direction of the side air curtain is formed between the guide rail mounting plate, the guide rail base plate and the guide rail guide panel, and the side air curtain is located in the guide rail groove;

[0009] The guide rail base plate is located between the sheet metal and the canopy, and the lower end of the canopy is located diagonally above the guide rail base plate;

[0010] The guide rail mounting plate is fixedly connected to the sheet metal, and the guide rail guides the decorative panel to extend toward the lower end of the ceiling and overlaps with the lower end of the ceiling.

[0011] When the side curtain is deployed, the guide rail guides the decorative panel to move away from the lower end of the ceiling under the action of the side curtain and guides the side curtain to deploy.

[0012] In one of the alternative technical solutions, a weakening structure is provided at the connection between the guide rail base plate and the guide rail mounting plate;

[0013] When the side air curtain is deployed, the guide rail base plate can move downward under the action of the side air curtain, and drive the guide rail to guide the decorative panel to unfold obliquely downward.

[0014] In one of the alternative technical solutions, the length of the guide rail groove is greater than the length of the side air curtain.

[0015] In one of the alternative technical solutions, the guide rail is composed of multiple guide rail units.

[0016] In one alternative technical solution, at the junction of the guide rail trim panel and the ceiling, the visible surface of the guide rail trim panel is flush with or smoothly transitions to the visible surface of the lower end of the ceiling.

[0017] In one of the alternative technical solutions, the guide rail mounting plate, the guide rail base plate, and the guide rail guide panel are integrally formed.

[0018] In one of the alternative technical solutions, the lower end of the canopy has an overlapping portion;

[0019] The overlapping portion includes an overlapping portion top plate connected to the lower end of the ceiling and extending toward the sheet metal side, and an overlapping portion baffle connected to the overlapping portion top plate and extending obliquely toward the guide rail bottom plate, with an overlapping portion groove formed between the overlapping portion top plate and the overlapping portion baffle.

[0020] The upper end of the guide rail guide panel overlaps in the groove of the overlap portion and extends toward the top plate of the overlap portion, and the overlap portion baffle is located on the side of the guide rail guide panel facing the guide rail groove.

[0021] In one of the alternative technical solutions, the thickness of the upper end of the guide rail guiding the decorative panel is less than the groove depth of the overlapping portion groove;

[0022] The guide rail guides the upper end of the decorative panel and leaves a preset gap between the top plate of the overlapping part and the baffle of the overlapping part.

[0023] In one of the alternative technical solutions, a lifting lug is installed on the sheet metal, and the lower end of the lifting lug has a lifting ring, through which the side air curtain is hung in the guide rail groove.

[0024] The present invention also provides a vehicle body, including the side curtain airbag mounting structure described in any of the foregoing technical solutions.

[0025] The above technical solution has the following beneficial effects:

[0026] The side curtain airbag installation structure and vehicle body provided by this invention, by arranging guide rails to install the side curtain airbags, can avoid the side curtain airbags from directly contacting the roof and causing abnormal noise. The side curtain airbags are installed in the guide rail grooves of the guide rails, which provides good stability. The guide rail guide panel can be used as an interior trim panel of the vehicle and as a guide plate to guide the side curtain airbags to unfold. When the side curtain airbags unfold, the guide rail guide panel leaves the lower end of the roof and moves downward, swings, flips, or deforms. The side curtain airbags can be deployed from the opening between the guide rail guide panel and the lower end of the roof, which can effectively prevent the roof from deforming and save on later maintenance costs. Attached Figure Description

[0027] Figure 1 A schematic diagram of the side curtain airbag mounting structure provided by the present invention installed on a vehicle body;

[0028] Figure 2 A sectional view of the side curtain airbag installation structure assembled with the B-pillar;

[0029] Figure 3 This is a schematic diagram of a side curtain air curtain installation structure provided in an embodiment of the present invention;

[0030] Figure 4 for Figure 3 A cross-sectional view along plane AA;

[0031] Figure 5 for Figure 3 A cross-sectional view along plane BB;

[0032] Figure 6 This is a 3D view of the guide rail;

[0033] Figure 7 This is a side view of the guide rail in its initial state.

[0034] Figure 8 This is a side view showing the deformation of the guide rail when the side curtain airbag is deployed. Detailed Implementation

[0035] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0036] like Figure 1-8 As shown, an embodiment of the present invention provides a side air curtain installation structure, including sheet metal 4, ceiling 5, side air curtain 6 and guide rail 7.

[0037] The guide rail 7 includes a guide rail base plate 71 extending along the length of the side curtain airbag 6, a guide rail mounting plate 72 mounted on the guide rail base plate 71, and a guide rail guide trim panel 73 mounted on the guide rail base plate 71 and used as an interior trim panel to guide the deployment of the side curtain airbag 6.

[0038] A guide rail groove 74 extending along the length of the side air curtain 6 is formed between the guide rail mounting plate 72, the guide rail base plate 71, and the guide rail guide panel 73, and the side air curtain 6 is located in the guide rail groove 74.

[0039] The guide rail base plate 71 is located between the sheet metal 4 and the roof 5, and the lower end of the roof 5 is located diagonally above the guide rail base plate 71.

[0040] The guide rail mounting plate 72 is fixedly connected to the sheet metal 4, and the guide rail guides the decorative panel 73 to extend toward the lower end of the ceiling 5 and overlap with the lower end of the ceiling 5.

[0041] When the side curtain air curtain 6 is deployed, the guide rail guides the decorative panel 73 to move away from the lower end of the ceiling 5 under the action of the side curtain air curtain 6 and guides the side curtain air curtain 6 to deploy.

[0042] The side curtain airbag mounting structure provided by this invention is part of the vehicle body, located in Figure 1-2 It is located above the B-pillar 1 and window 2, and below the sunroof 3 or roof panel.

[0043] The side curtain airbag mounting structure includes sheet metal 4, roof 5, side curtain airbag 6, and guide rail 7. Sheet metal 4 is part of the vehicle body sheet metal, and roof 5 is part of the roof trim panel, which is made of plastic. The side curtain airbag 6 is a long cylindrical shape in its normal state. The guide rail 7 is a plastic part used to install the side curtain airbag 6; when the side curtain airbag 6 is inflated and deployed, the guide rail 7 can deform.

[0044] In this invention, the side facing inwards during installation is referred to as the inner side, and the side facing outwards is referred to as the outer side.

[0045] The guide rail 7 is arranged along the axial or longitudinal direction of the side curtain airbag 6, and includes a guide rail base plate 71, a guide rail mounting plate 72, and a guide rail guide trim panel 73. The guide rail base plate 71 is located at the bottom, between the sheet metal 4 and the roof 5, and the lower end of the roof 5 is diagonally above the inner end of the guide rail base plate 71, specifically diagonally inside and above. That is, in the direction along the sheet metal 4 to the roof 5 (vehicle width direction), there is a first preset distance between the inner end of the guide rail base plate 71 and the lower end of the roof 5, and in the direction perpendicular to the guide rail base plate 71, the lower end of the roof 5 is above the guide rail base plate 71 and is separated by a second preset distance.

[0046] The guide rail mounting plate 72 is connected to the outer edge of the guide rail base plate 71 and extends upward. During installation, the guide rail mounting plate 72 is installed on the inner side of the sheet metal 4 by the first bolt 41. The guide rail guide panel 73 is connected to the inner edge of the guide rail base plate 71 and extends inward and upward at an angle. During installation, the upper end of the guide rail guide panel 73 overlaps or abuts against the lower end of the ceiling 5. The two can be in contact or a small gap can be reserved to facilitate the upper end of the guide rail guide panel 73 to quickly move away from the lower end of the ceiling 5 when the side curtain air curtain 6 is inflated and deployed.

[0047] A guide rail groove 74 is formed between the guide rail mounting plate 72, the guide rail base plate 71, and the guide rail guide panel 73. The guide rail groove 74 extends along the length of the side air curtain 6. The side air curtain 6 is located in the guide rail groove 74.

[0048] The guide rail guide panel 73 has the following two functions:

[0049] Function 1: Under normal conditions, the inner surface of the guide rail 73 facing the interior of the vehicle is a visible surface 731, which can be used as an interior trim panel. Its surface texture can be the same as that of the headliner.

[0050] Function 2: When the side curtain airbag 6 is inflated and deployed, under the action of the rapidly expanding side curtain airbag 6, the guide rail guide panel 73 quickly leaves the lower end of the roof 5 and unfolds, forming an airbag outlet between the unfolded guide rail guide panel 73 and the lower end of the roof 5. The side curtain airbag 6 unfolds rapidly from the airbag outlet. At the same time, during this process, the guide rail guide panel 73 guides the side curtain airbag 6 to unfold into the vehicle.

[0051] During the deployment of the side air curtain 6, the decorative panel 73 is deformed and deployed due to the action of the guide rail, thereby forming the air curtain outlet. This can effectively prevent the ceiling 5 from being subjected to a large impact and deformation. In the later maintenance, only the side air curtain 6 and the guide rail 7 need to be replaced, which helps to save on later maintenance costs and shorten the maintenance period.

[0052] In one embodiment, such as Figure 7-8 As shown, a weakening structure 75 is provided at the connection between the guide rail base plate 71 and the guide rail mounting plate 72.

[0053] When the side curtain air curtain 6 is deployed, the guide rail base plate 71 can move downward under the action of the side curtain air curtain 6, and drive the guide rail to guide the decorative panel 73 to unfold obliquely downward.

[0054] The weakening structure 75 can be a weakening groove or a weakening line. When the side air curtain 6 is inflated and unfolded, due to the setting of the weakening structure 75, the guide rail base plate 71 can move downward relative to the guide rail mounting plate 72, thereby driving the guide rail guide panel 73 to unfold inward and downward, which is conducive to guiding the side air curtain 6 to unfold downward.

[0055] As the guide rail guides the trim panel 73 to unfold inward and downward, the side curtain airbag 6 moves laterally toward the vehicle interior while unfolding downward, so as to quickly make contact with the occupants inside the vehicle, protect the occupants, and increase the lateral distance between the side curtain airbag 6 and the side of the vehicle body. When the occupants collide with the side of the vehicle body, the side curtain airbag 6 can play a better buffering role.

[0056] The maximum swing angle of the guide rail base plate 71 is 90°. At this time, the guide rail base plate 71 and the guide rail mounting plate 72 are basically in the same plane.

[0057] In one embodiment, such as Figure 7-8 As shown, the inner surface of the guide rail trim panel 73 is the visible surface 731, and the outer surface of the guide rail trim panel 73 is the guide surface 732. When the guide rail trim panel 73 is unfolded, the guide surface 732 is on top, and the visible surface 731 is on the bottom.

[0058] The guide surface 732 is a smooth curved surface. The end of the guide surface 732 that is in contact with the guide rail base plate 71 is the first end, and the end of the guide surface 732 that is away from the guide rail base plate 71 is the last end. That is, under normal conditions, the end of the guide surface 732 that is located at the top of the guide rail guide panel 73 is the last end.

[0059] In the direction from the first end to the last end, the radius of curvature of the curved surface gradually decreases, so that when the guide rail guides the decorative panel 73 to unfold, the end of the guide surface 732 will not be vertically downward, but will tilt inward and downward to guide the side air curtain 6 to unfold downward and inward.

[0060] In one embodiment, the length of the guide rail groove 74 is greater than the length of the side air curtain 6, which can provide sufficient installation space for the side air curtain 6, avoid abnormal noise caused by the side air curtain 6 contacting the ceiling 5, and also help improve the stability of the side air curtain 6.

[0061] In one embodiment, such as Figure 1 As shown, the guide rail 7 is composed of multiple guide rail units 70. Each guide rail unit 70 is a segment of the guide rail 7, and the multiple guide rail units 70 can be installed on the sheet metal 4 in segments for easy installation according to the actual vehicle model. Since the guide rail 7 is composed of segments, the guide rail base plate 71 and guide rail guide trim panel 73 in each guide rail unit 70 are not too long, so that the guide rail base plate 71 and guide rail guide trim panel 73 in the guide rail unit 70 can deform and unfold more quickly when the side curtain airbag 6 is deployed.

[0062] In one embodiment, such as Figure 4-5 and Figure 7-8As shown, at the junction of the guide rail trim panel 73 and the roof 5, the visible surface 731 of the guide rail trim panel 73 is flush with or smoothly transitions to the visible surface at the lower end of the roof 5, which helps to improve the flatness of the interior.

[0063] In one embodiment, the guide rail mounting plate 72, the guide rail base plate 71, and the guide rail guide panel 73 are integrally formed. The guide rail mounting plate 72, the guide rail base plate 71, and the guide rail guide panel 73 are all plastic parts and can be integrally molded by injection molding, facilitating processing and molding.

[0064] In one embodiment, such as Figure 4-5 As shown, the lower end of the canopy 5 has an overlap 51.

[0065] The overlapping portion 51 includes an overlapping portion top plate 511 connected to the lower end of the roof 5 and extending toward the sheet metal 4, and an overlapping portion baffle 512 connected to the overlapping portion top plate 511 and extending obliquely toward the guide rail bottom plate 71. An overlapping portion groove 513 is formed between the overlapping portion top plate 511 and the overlapping portion baffle 512.

[0066] The upper end of the guide rail guide panel 73 overlaps in the overlap groove 513 and extends toward the overlap top plate 511. The overlap baffle 512 is located on one side of the guide rail guide panel 73 facing the guide rail groove 74.

[0067] In this embodiment, the lower end of the roof 5 is provided with an overlapping portion 51. The overlapping portion 51 is L-shaped and includes an overlapping portion top plate 511 and an overlapping portion baffle 512. The overlapping portion top plate 511 is connected to the lower end of the roof 5 and extends laterally outward. The overlapping portion baffle 512 is connected to the overlapping portion top plate 511 in an L-shape and extends obliquely toward the guide rail bottom plate 71. The overlapping portion groove 513 is located inside the overlapping portion baffle 512, that is, the overlapping portion groove 513 faces the interior of the vehicle.

[0068] During installation, the upper end of the guide rail guide panel 73 is located in the overlapping groove 513. The upper end of the guide rail guide panel 73 extends toward the overlapping top plate 511. The overlapping baffle 512 is located outside the guide rail guide panel 73, that is, the overlapping baffle 512 is at least partially located in the guide rail groove 74, and the guide rail guide panel 73 is located inside the overlapping baffle 512. Under normal conditions, the overlapping baffle 512 restricts the movement of the guide rail guide panel 73 toward the guide rail groove 74 to avoid compressing the side air curtain 6. When the side air curtain 6 is inflated, since the guide rail guide panel 73 is located inside the overlapping baffle 512, it will not interfere with the overlapping part 51 when the guide rail guide panel 73 unfolds downward and inward, thus allowing it to quickly leave the overlapping part 51 to form an air curtain outlet.

[0069] In one embodiment, both the overlapping part 51 and the canopy 5 are plastic parts, and the two are integrally injection molded.

[0070] In one embodiment, such as Figure 4-5 As shown, the thickness of the upper end of the guide rail guide panel 73 is less than the groove depth of the overlapping part groove 513, which can prevent the upper end of the guide rail guide panel 73 from protruding from the overlapping part groove 513.

[0071] The upper end of the guide rail guide panel 73 is provided with a preset gap between the top plate 511 of the overlapping part and the baffle 512 of the overlapping part, so as to avoid interference between the guide rail guide panel 73 and the overlapping part 51.

[0072] In one embodiment, such as Figure 3-4 As shown, a lifting lug 8 is installed on the sheet metal 4, and the lower end of the lifting lug 8 has a lifting ring 81. The side air curtain 6 is hung in the guide rail groove 74 through the lifting ring 81.

[0073] The lifting lug 8 is mounted on the sheet metal 4 by the second bolt 42. The lower end of the lifting lug 8 has a lifting ring 81 for suspending the side air curtain 6, so that the side air curtain 6 is suspended in the guide rail groove 74 and does not contact the guide rail 7, which can avoid abnormal noise.

[0074] One embodiment of the present invention provides a vehicle body that includes the side curtain airbag mounting structure described in any of the preceding embodiments.

[0075] In summary, the side curtain airbag installation structure and vehicle body provided by this invention, by arranging guide rails to install the side curtain airbags, can avoid the side curtain airbags from directly contacting the roof and causing abnormal noise. The side curtain airbags are installed in the guide rail grooves of the guide rails, which provides good stability. The guide rail guide panel can be used as an interior trim panel of the vehicle and as a guide plate to guide the side curtain airbags to unfold. When the side curtain airbags unfold, the guide rail guide panel leaves the lower end of the roof and moves downward, swings, flips, or deforms. The side curtain airbags can be deployed from the opening between the guide rail guide panel and the lower end of the roof, which can effectively prevent the roof from deforming and save on later maintenance costs.

[0076] As needed, the above technical solutions can be combined to achieve the best technical effect.

[0077] The above description is merely the principle and preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several other modifications can be made based on the principle of the present invention, and these modifications should also be considered within the scope of protection of the present invention.

Claims

1. A side curtain air vent installation structure, characterized in that, Includes sheet metal (4), roof (5), side curtain airbags (6) and guide rails (7); The guide rail (7) includes a guide rail base plate (71) extending along the length direction of the side curtain airbag (6), a guide rail mounting plate (72) mounted on the guide rail base plate (71), and a guide rail guide trim panel (73) mounted on the guide rail base plate (71) and used as an interior trim panel to guide the side curtain airbag (6) to unfold. A guide rail groove (74) extending along the length direction of the side air curtain (6) is formed between the guide rail mounting plate (72), the guide rail base plate (71) and the guide rail guide decorative panel (73), and the side air curtain (6) is located in the guide rail groove (74). The guide rail base plate (71) is located between the sheet metal (4) and the canopy (5), and the lower end of the canopy (5) is located obliquely inside and above the guide rail base plate (71); The guide rail mounting plate (72) is fixedly connected to the sheet metal (4), and the guide rail guide panel (73) extends toward the lower end of the ceiling (5) and overlaps with the lower end of the ceiling (5). When the side curtain (6) is unfolded, the guide rail guides the decorative panel (73) to move away from the lower end of the ceiling (5) under the action of the side curtain (6) and guides the side curtain (6) to unfold. The lower end of the canopy (5) has an overlap (51). The overlapping portion (51) includes an overlapping portion top plate (511) connected to the lower end of the canopy (5) and extending toward the sheet metal (4) side, and an overlapping portion baffle (512) connected to the overlapping portion top plate (511) and extending obliquely toward the guide rail bottom plate (71). An overlapping portion groove (513) is formed between the overlapping portion top plate (511) and the overlapping portion baffle (512). The upper end of the guide rail guide panel (73) overlaps in the overlap groove (513) and extends toward the overlap top plate (511), and the overlap baffle (512) is located on the side of the guide rail guide panel (73) facing the guide rail groove (74).

2. The side curtain airbag installation structure according to claim 1, characterized in that, A weakening structure (75) is provided at the connection between the guide rail base plate (71) and the guide rail mounting plate (72); When the side curtain (6) is deployed, the guide rail base plate (71) can move downward under the action of the side curtain (6), and drive the guide rail guide panel (73) to unfold obliquely downward.

3. The side curtain air installation structure according to claim 1, characterized in that, The length of the guide rail groove (74) is greater than the length of the side air curtain (6).

4. The side curtain airbag installation structure according to claim 1, characterized in that, The guide rail (7) is composed of multiple guide rail units (70).

5. The side curtain air installation structure according to claim 1, characterized in that, At the junction of the guide rail trim panel (73) and the ceiling (5), the visible surface of the guide rail trim panel (73) is flush with or smoothly transitions to the visible surface of the lower end of the ceiling (5).

6. The side curtain air installation structure according to claim 1, characterized in that, The guide rail mounting plate (72), the guide rail base plate (71), and the guide rail guide panel (73) are integrally formed.

7. The side curtain air installation structure according to claim 1, characterized in that, The thickness of the upper end of the guide rail guide panel (73) is less than the groove depth of the overlapping part groove (513); The upper end of the guide rail guide panel (73) is provided with a preset gap between the top plate (511) of the overlapping part and the baffle (512) of the overlapping part.

8. The side curtain airbag installation structure according to any one of claims 1-6, characterized in that, The sheet metal (4) is equipped with a lifting lug (8), and the lower end of the lifting lug (8) has a lifting ring (81). The side air curtain (6) is hung in the guide rail groove (74) through the lifting ring (81).

9. A vehicle body, characterized in that, The side curtain air curtain mounting structure includes any one of claims 1-8.

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