Seat side air bag, seat and vehicle

Abstract

The embodiment of the utility model provides a seat side air bag, a seat and a vehicle. The seat side air bag comprises a bag body and a shielding piece, the bag body comprises a first main piece, a second main piece and a middle piece, and the first main piece and the second main piece are oppositely connected in the thickness direction of the bag body. The middle piece is connected between the first main piece and the second main piece and is used for forming a middle part when the bag is in an expansion state, and an air leakage hole is formed in the middle piece; the shielding piece shields at least one part of the air leakage hole, one part of the shielding piece is sewn or bonded to the outer wall face of the middle piece, an air outlet is formed between the other part of the shielding piece and the outer wall face of the middle piece, and the air outlet faces the outer side of the vehicle. Therefore, the seat side air bag has the advantage of being high in safety performance.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle safety, and particularly relates to a seat side airbag, an automobile seat and a vehicle having the seat side airbag. Background Art

[0002] The airbag is stored in a cavity located in a vehicle seat in a compressed state together with an inflator. For example, the door, window or body panel of a vehicle. To ensure that the vent hole is not blocked by the door trim panel during the deployment process of the side airbag, the vent hole of the side airbag is generally designed to be located on the side close to the occupant. When the side airbag is deployed, the vent hole is relatively close to the occupant's torso. If the designed position of the vent hole is relatively close to the occupant's body, the occupant's arm or abdomen is easily scalded by the hot air ejected from the vent hole when the vehicle collides. In the related art, the seat side airbag is a multi-piece sewn airbag. For example, the airbag includes a first main piece, a second main piece and an intermediate piece. Although it avoids the problem of unstable air leakage caused by designing the vent hole along the seam of the two main fabric pieces in the industry. However, when the vehicle has a frontal offset collision, the occupant will laterally move to the front part of the deployed airbag, and there is still a situation of being scalded by hot air. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems in the related art to some extent. For this purpose, an embodiment of the utility model proposes a seat side airbag. The seat side airbag has the advantage of high safety performance.

[0004] An embodiment of the utility model also proposes a seat.

[0005] An embodiment of the utility model also proposes a vehicle.

[0006] The seat side airbag of the embodiment of the utility model includes an airbag and a shielding piece.

[0007] The airbag includes a first main piece, a second main piece and an intermediate piece. The first main piece and the second main piece are relatively connected along the thickness direction of the airbag. The intermediate piece is connected between the first main piece and the second main piece and is used to form an intermediate part in the inflated state of the airbag. A vent hole is provided on the intermediate piece. The shielding piece shields at least a part of the vent hole, and a sealing line is formed between a part of the shielding piece and the outer wall surface of the intermediate piece. An exhaust port is formed between another part of the shielding piece and the outer wall surface of the intermediate piece. The exhaust port is arranged towards the outside of the vehicle.

[0008] For the seat side airbag according to the embodiment of the present utility model, the air vent hole is arranged on the intermediate sheet, and the air vent hole will not be blocked during the inflation process and thus lose the pressure limiting function. So that during the inflation process of the airbag, when the gas pressure in the airbag exceeds a predetermined threshold, the gas can smoothly discharge from the airbag through the air vent hole, preventing the problem of damage to the occupant caused by excessive internal pressure of the airbag. The intermediate sheet is located in the thickness direction of the airbag, and the air vent hole is arranged on the intermediate sheet to ensure that the air vent hole always exceeds the front direction after the airbag is inflated and unfolded, avoiding the occupant contact area, moving the position of the air vent hole of the airbag out of the area that can be contacted by the occupant, and further avoiding the risk of scalding the occupant's clothing or body after a vehicle collision.

[0009] In addition, a shielding sheet is provided to shield at least a part of the exhaust port. During the inflation process of the airbag, when the gas pressure in the airbag exceeds a predetermined threshold, the nitrogen gas in the airbag first blows onto the shielding sheet and then discharges the hot nitrogen gas through the exhaust port facing the outside of the vehicle, effectively avoiding directly blowing to the part where the airbag contacts the human body, and further avoiding the situation of scalding the occupant by the nitrogen gas and preventing the occupant from suffering additional potential injuries.

[0010] Therefore, the seat side airbag according to the embodiment of the present utility model has the advantage of high safety performance.

[0011] In some embodiments, in the inflated state, the area of the part of the shielding sheet that shields the air vent hole accounts for 50%-100% of the total area of the air vent hole.

[0012] In some embodiments, the shielding sheet includes a main body part of the shielding piece and a pleat seam part formed on the main body part of the shielding piece.

[0013] In some embodiments, a pleat seam line is formed between the pleat seam part and the main body part of the shielding piece, and the pleat seam line intersects with the exhaust port.

[0014] In some embodiments, the shielding sheet is polygonal, and at least one side of the shielding sheet close to the vehicle is not sewn.

[0015] In some embodiments, the intermediate sheet is strip-shaped, and the width of the intermediate sheet is 50 mm - 100 mm; and / or, the air vent hole is circular, and the diameter of the air vent hole is 10 mm - 40 mm.

[0016] In some embodiments, the airbag is a single-chamber airbag.

[0017] In some embodiments, a part of the shielding sheet is sewn or bonded to the outer wall surface of the intermediate sheet to form the sealing line at the joint, and another part of the shielding sheet is not sewn to the outer wall surface of the intermediate sheet or a bonding weakening area is provided to form the exhaust port.

[0018] In some embodiments, in the inflated state of the airbag, the first main sheet and the second main sheet are disposed opposite to each other along the thickness direction of the airbag, the intermediate sheet is configured to form a thickness portion in the inflated state of the airbag, and the first main sheet and the second main sheet are an integral sheet structure; or the first main sheet and the second main sheet are a split structure, and the first main sheet and the second main sheet are joined by a seam.

[0019] In some embodiments, the seat side airbag includes a generator, and the generator and the vent hole are disposed opposite to each other in the front-rear direction of the vehicle on the airbag.

[0020] The seat according to an embodiment of the present invention includes a seat body and the seat side airbag according to any one of the above, and the seat side airbag is disposed on the seat body close to the door trim panel.

[0021] The vehicle according to an embodiment of the present invention includes a carriage and the seat according to the above, the carriage has a door trim panel, the seat body is disposed in the carriage, the airbag is disposed close to the door trim panel, and the exhaust port is disposed toward the door trim panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic view of an occupant sitting on a seat according to an embodiment of the present invention.

[0023] Figure 2 is Figure 1 a partial view in

[0024] Figure 3 is a schematic view of an occupant sitting on a seat according to another embodiment of the present invention.

[0025] Figure 4 is Figure 3 a partial view in

[0026] Figure 5 is a side view of the seat side airbag according to the present invention.

[0027] Figure 6 is a front view of the seat side airbag according to the present invention.

[0028] Figure 7 is a schematic view of the seat side airbag according to the present invention without a stitched shielding sheet.

[0029] Reference Signs:

[0030] Seat side airbag 100; Door trim panel 200; Seat body 300; Occupant 400;

[0031] Airbag 1; First main sheet 11; Second main sheet 12; Intermediate sheet 13; Vent hole 14;

[0032] Shielding sheet 2; baffle main body 21; pleat part 22; pleat sewing line 23; exhaust port 24; sealing line 25;

[0033] Generator 3. Specific embodiments

[0034] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model and should not be construed as limiting the present utility model.

[0035] Reference will be made below to Figures 1-7 Describe the seat side airbag 100, seat and vehicle of the embodiments of the present utility model.

[0036] The seat side airbag 100 of the embodiments of the present utility model includes an airbag 1 and a shielding sheet 2.

[0037] The airbag 1 includes a first main sheet 11, a second main sheet 12 and an intermediate sheet 13. The first main sheet 11 and the second main sheet 12 are oppositely connected along the thickness direction of the airbag 1. The intermediate sheet 13 is connected between the first main sheet 11 and the second main sheet 12 and is used to form an intermediate part in the inflated state of the airbag 1. An air release hole 14 is provided on the intermediate sheet 13. The shielding sheet 2 shields at least a part of the air release hole 14, and a sealing line 25 is formed between a part of the shielding sheet 2 and the outer wall surface of the intermediate sheet 13. An exhaust port 24 is formed between another part of the shielding sheet 2 and the outer wall surface of the intermediate sheet 13. The exhaust port 24 is arranged facing the outside of the vehicle door interior trim panel 200.

[0038] For the seat side airbag 100 of the embodiments of the present utility model, by dividing the airbag 1 into a first main sheet 11, a second main sheet 12 and an intermediate sheet 13, the intermediate sheet 13 is connected between the first main sheet 11 and the second main sheet 12 and is used to form an intermediate part in the inflated state of the airbag 1, that is, a side airbag with a three-piece three-dimensional structure is formed. Compared with the 2D side airbag in the related art, when the seat side airbag 100 of the embodiments of the present utility model is activated, the width of the side airbag can be widened in the width direction of the vehicle, so as to provide a larger contact area for the arm of the occupant 400, and provide reliable support for the occupant 400 through this contact area, reliably lift the arm of the occupant 400, and thus provide better protection for the occupant 400. Moreover, the problem of unstable air release caused by designing the air release hole 14 along the sewing line of the two main fabric sheets in the industry is avoided at the same time.

[0039] Meanwhile, the vent hole 14 is provided on the intermediate piece 13, so that the vent hole 14 will not be blocked during the inflation process and thus lose the pressure limiting function. In order that during the inflation process of the airbag 1, the gas pressure in the airbag 1 exceeds a predetermined threshold value, the gas can smoothly discharge from the airbag 1 via the vent hole 14, preventing the problem that the internal pressure of the airbag 1 is too high and causing injury to the occupant 400. The intermediate piece 13 is located in the thickness direction of the airbag 1. The vent hole 14 is arranged on the intermediate piece 13 to ensure that the vent hole 14 always overtakes the front direction after the airbag is inflated and deployed, avoiding the contact area of the occupant 400, moving the position of the vent hole 14 of the airbag 1 out of the contact area accessible to the occupant 400, and further avoiding the risk of scalding the clothing or body of the occupant 400 after a vehicle collision.

[0040] In addition, the provided shielding piece 2 shields at least a part of the exhaust port 24. During the inflation process of the airbag 1, when the gas pressure in the airbag 1 exceeds a predetermined threshold value, the nitrogen gas in the airbag 1 first blows onto the shielding piece 2 and then discharges the hot nitrogen gas through the exhaust port 24 facing the outside of the vehicle, effectively avoiding directly blowing onto the part where the airbag 1 contacts the human body, and further avoiding the situation that the nitrogen gas scalds the occupant 400 and preventing the occupant 400 from suffering additional potential injuries.

[0041] Therefore, the seat side airbag 100 of the embodiment of the present utility model has the advantage of high safety performance.

[0042] In the inflated state, the area of the part of the shielding piece 2 shielding the vent hole 14 accounts for 50%-100% of the total area of the vent hole 14. Furthermore, it can prevent the situation that passengers are scalded when in an abnormal sitting posture (for example, with the arm leaning on the airbag near the vent hole 14 area). Thus, the safety of passengers during riding is further improved. It also avoids the risk that when the arm completely leans on the vent hole 14 of the airbag, the shielding piece 2 blocks the vent hole 14 and causes it to lose the pressure limiting function. Furthermore, it is beneficial to improve the safety of the seat side airbag 100 during side collisions.

[0043] Optionally, the area of the part of the intermediate piece 13 shielding the vent hole 14 accounts for 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95% or 100% of the total area of the vent hole 14.

[0044] As Figures 1 to 4 shown, the shielding piece 2 includes a main shielding part 21 and a pleat part 22 formed by pleats on the main shielding part 21.

[0045] The seat side airbag 100 according to the embodiment of the present utility model has a pleat portion 22 provided on the shielding piece 2. After the airflow blows onto the shielding piece 2, the shielding piece 2 with the pleat portion 22 will expand, leaving a certain pressure relief space between the air vent 14 and the shielding piece 2, avoiding the problem of poor exhaust caused by the shielding piece 2 fitting onto the air vent 14. Furthermore, it is beneficial to further improve the safety of the seat side airbag 100 during a side collision.

[0046] As Figures 1 to 4 shown, a pleat line 23 is formed between the pleat portion 22 and the main body portion 21 of the shielding piece, and the pleat line 23 intersects with the exhaust port 24.

[0047] When pressure relief is required, the nitrogen gas discharged through the air vent 14 is discharged to the area between the pleat portion 22 and the intermediate piece 13 through the air vent 14, causing this part to expand due to being filled with nitrogen gas, and the airflow can be smoothly discharged from this place. Further, it avoids the risk of the shielding piece 2 blocking the air vent 14 and causing it to lose its pressure limiting function.

[0048] As Figures 1 to 4 shown, the shielding piece 2 is polygonal, and at least one side of the shielding piece 2 facing the vehicle door interior trim panel 200 is not sewn. Thus, by setting the shielding piece 2 as polygonal, it is convenient for sewing and wiring during the sewing process, thereby improving the processing convenience.

[0049] For example, as Figures 1 to 4 shown, the shielding piece 2 is a triangular piece (for example, Figure 1 and Figure 2 shown) or a rectangular piece (for example, Figure 3 and Figure 4 shown). Further, the shielding piece 2 is a right-angled triangular piece or an isosceles triangular piece, where two sides are sewn or bonded to the intermediate piece 13, and one side is not sewn, and the pleat line 23 extends from an angle relative to the unsewn side towards the direction close to the unsewn side. Further, it avoids the risk of the shielding piece 2 blocking the air vent 14 and causing it to lose its pressure limiting function.

[0050] Further, the pleat line 23 is perpendicular to the unsewn side.

[0051] Even further, the width of the pleat portion 22 gradually widens from an angle relative to the unsewn side towards the direction close to the unsewn side. Furthermore, it improves the smoothness of exhaust. Thus, it further avoids the risk of the shielding piece 2 blocking the air vent 14 and causing it to lose its pressure limiting function.

[0052] The intermediate sheet 13 is strip-shaped, and the width of the intermediate sheet 13 is 50 mm - 100 mm. Thus, it is possible to avoid the problem of weak protection caused by too small a width of the intermediate sheet 13 resulting in too small a reliable support area of the airbag 1 for the occupant 400. It is also possible to avoid the problem of damage to the door interior trim 200 caused by extrusion when the airbag 1 is clamped between the seat and the door interior trim 200 due to too large a width of the intermediate sheet 13. Thus, it has the advantages of good protection ability and not easily damaging the vehicle interior trim.

[0053] Optionally, the width of the intermediate sheet 13 is 50 mm, 52 mm, 54 mm, 56 mm, 60 mm, 65 mm, 70 mm, 75 mm, 80 mm, 85 mm, 90 mm, 95 mm or 100 mm.

[0054] The vent hole 14 is circular, and the diameter of the vent hole 14 is 10 mm - 40 mm. Thus, it is possible to avoid the additional potential harm to the occupant 400 caused by too large a diameter of the vent hole 14. It is also possible to avoid the problem of poor exhaust caused by too small a diameter of the vent hole 14.

[0055] As Figure 7 shown, the airbag 1 is a single-chamber airbag. In the seat-side airbag 100 of the embodiment of the present utility model, a single-chamber airbag is provided, which has the advantages of simple structure and high processing convenience.

[0056] A part of the shielding sheet 2 is stitched or bonded to the outer wall surface of the intermediate sheet 13 to form a sealing line 25 at the connection. The method of stitching or bonding has the advantage of high processing convenience.

[0057] Another part of the shielding sheet 2 and the outer wall surface of the intermediate sheet 13 form the exhaust port 24 by avoiding stitching or by providing an adhesive weakening zone. Thus, the method of avoiding stitching or bonding has the advantage of high processing convenience.

[0058] As Figure 5 and Figure 6 shown, in the inflated state of the airbag 1, the first main sheet 11 and the second main sheet 12 are arranged opposite to each other in the thickness direction of the airbag 1, and the intermediate sheet 13 is configured to form a thickness portion in the inflated state of the airbag 1. The first main sheet 11 and the second main sheet 12 are an integral sheet structure.

[0059] The present utility model is not limited thereto. In other embodiments, the first main sheet 11 and the second main sheet 12 are a split structure, and the first main sheet 11 and the second main sheet 12 are joined by seams.

[0060] In the present utility model, the first main sheet 11 and the second main sheet 12 opposite to the intermediate sheet 13 can be an integral structure or stitched. The formed airbag 1 has a structure that is wide in the middle and narrow at both ends, which is beneficial to making the structural contour of the airbag more three-dimensional, and this structure also has high relative processing convenience.

[0061] Optionally, the seams of the first main piece 11, the second main piece 12, the intermediate piece 13 and the shielding piece 2 can be realized by sewing threads.

[0062] As Figure 5 shown, the seat side airbag 100 includes a generator 3, and the generator 3 and the vent hole 14 are oppositely arranged on the airbag 1 in the front-rear direction of the vehicle.

[0063] Furthermore, when the first main piece 11 and the second main piece 12 are stitched and connected, the generator 3 can be arranged on the stitching line of the first main piece 11 and the second main piece 12.

[0064] The seat according to an embodiment of the present invention includes a seat body 300 and the seat side airbag 100 according to any one of the above, and the seat side airbag 100 is arranged on the seat body 300 close to the door trim panel 200.

[0065] Therefore, the seat according to the embodiment of the present invention has the advantage of high safety performance.

[0066] The vehicle according to an embodiment of the present invention includes a carriage and the seat according to the above, the carriage has a door trim panel 200, the seat body 300 is arranged in the carriage, the airbag 1 is arranged close to the door trim panel 200, and the exhaust port 24 is arranged facing the door trim panel 200.

[0067] Therefore, the vehicle according to the embodiment of the present invention has the advantage of high safety performance.

[0068] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0069] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0070] In the present utility model, unless otherwise clearly defined or limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0071] In the present utility model, unless otherwise clearly defined or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0072] In the present utility model, terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0073] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present utility model.

Claims

1. A seat side airbag, characterized in that Comprising: A pocket, the pocket includes a first main sheet, a second main sheet and an intermediate sheet. The first main sheet and the second main sheet are oppositely connected and arranged along the thickness direction of the pocket. The intermediate sheet is connected between the first main sheet and the second main sheet and is used to form a thickness part in the inflated state of the pocket. An air vent is provided on the intermediate sheet. A shielding sheet, the shielding sheet shields at least a part of the air vent, and a sealing line is formed between a part of the shielding sheet and the outer wall surface of the intermediate sheet. An exhaust port is formed between another part of the shielding sheet and the outer wall surface of the intermediate sheet, and the exhaust port faces the vehicle door interior trim panel.

2. The seat side airbag according to claim 1, wherein In the inflated state, the area of the part of the shielding sheet that shields the air vent accounts for 50%-100% of the total area of the air vent.

3. The seat side airbag according to claim 1, characterized in that, The shielding sheet includes a main sheet body part and a pleat seam part formed on the main sheet body part.

4. The seat side airbag according to claim 3, wherein, A pleat seam line is formed between the pleat seam part and the main sheet body part, and the pleat seam line intersects with the exhaust port.

5. The seat side airbag according to claim 1, characterized in that, The shielding sheet is polygonal, and at least one side of the shielding sheet facing the vehicle door interior trim panel is free from stitching.

6. The seat side airbag according to claim 1, characterized in that, The intermediate sheet is strip-shaped, and the width of the intermediate sheet is 50 mm - 100 mm; and / or, the air vent is circular, and the diameter of the air vent is 10 mm - 40 mm.

7. The seat side airbag according to claim 1, characterized in that, The pocket is a single-chamber airbag; and / or, a part of the shielding sheet is stitched or bonded to the outer wall surface of the intermediate sheet to form the sealing line at the joint, and another part of the shielding sheet is free from stitching or a bonding weakening area is provided with the outer wall surface of the intermediate sheet to form the exhaust port.

8. The seat side airbag according to any one of claims 1 to 7, characterized in that, In the inflated state of the pocket, the first main sheet and the second main sheet are oppositely arranged along the thickness direction of the pocket. The first main sheet and the second main sheet are an integral sheet structure; or the first main sheet and the second main sheet are a split structure, and the first main sheet and the second main sheet are joined by seams. and / or the seat side airbag includes a generator, and the generator and the air vent are oppositely arranged on the pocket along the front-rear direction of the vehicle.

9. A seat, characterized in that, Comprising a seat body and a seat side airbag according to any one of claims 1-8, the seat side airbag is arranged on the seat body close to the vehicle door interior trim panel.

10. A vehicle, characterized in that, Comprising a carriage and the seat according to claim 9, the carriage has a vehicle door interior trim panel, the seat body is arranged in the carriage, the pocket is arranged close to the vehicle door interior trim panel, and the exhaust port faces the vehicle door interior trim panel.

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