Passenger safety air bag with side wings

Abstract

The utility model discloses a passenger safety air bag with side wings, which comprises an air bag body, and the air bag body expands after being inflated and supports the head of a passenger. An arc-shaped concave part, a left wing part and a right wing part are formed on the surface, making contact with the head of a passenger, of the air bag body after the air bag body is inflated and expanded, and the left wing part and the right wing part are located on the left side and the right side of the arc-shaped concave part and protrude outwards. According to the utility model, the offset of the dummy head is effectively reduced, the conditions that the dummy head is contacted with a hard object and the torque value of the neck becomes high due to the fact that the dummy head slides out of the air bag are prevented, and the cost is effectively saved at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile safety airbags, in particular to an occupant safety airbag with side wings. Background Art

[0002] The passenger airbag (PAB) is a safety device in the passive safety restraint system of an automobile. It can be instantly detonated when a car crashes, thereby protecting the safety of the occupants. The airbag of the PAB, as an important component, is filled with gas when the airbag is detonated, separating the dashboard from the occupants, thereby protecting the safety of the occupants.

[0003] When conducting a small offset collision test on a car, it is necessary to ensure that the dummy moves forward and directly rebounds back to the seat after contacting the fully deployed PAB airbag. However, the contact surface of the existing PAB airbag after deployment is mostly flat. When the car encounters a small offset collision, the dummy's head is likely to slide into the gap between the door and the passenger airbag module during the forward movement. The offset is large, and it is easy to slide out of the airbag after contact, resulting in serious head injury to the dummy, which does not meet the requirements of the small offset collision test.

[0004] Therefore, the applicant has found a solution to the above-mentioned problem through beneficial exploration and research, and the technical solution to be introduced below is produced in this context. Utility Model Content

[0005] The technical problem to be solved by the utility model is: to provide an occupant airbag with side wings to address the deficiencies of the prior art, so as to support the head of a dummy when a small offset collision occurs in a car, prevent the dummy's head from sliding out of the deployment range of the airbag, and reduce damage to the dummy's head.

[0006] The technical problem to be solved by the present invention can be achieved by adopting the following technical solutions:

[0007] A passenger safety airbag with side wings, comprising an airbag body, which expands and unfolds after being inflated to support the passenger's head; characterized in that an arc-shaped recessed portion and left and right side wing portions are formed on the surface of the airbag body that contacts the passenger's head after being inflated, and the left and right side wing portions are located on the left and right sides of the arc-shaped recessed portion and protrude outward.

[0008] In a preferred embodiment of the utility model, the airbag body includes a middle panel, a left panel, a right panel and a side wing panel. The middle panel is arranged in a folded shape during sewing, and its upper front side edge is sewn with the upper side edge of the side wing panel, and its lower front side edge is sewn with the lower side edge of the side wing panel. The outer peripheral edge of the left panel is sewn with the left peripheral edge of the middle panel and the left edge of the side wing panel, and the outer peripheral edge of the right panel is sewn with the right peripheral edge of the middle panel and the right edge of the side wing panel.

[0009] In a preferred embodiment of the present invention, the upper front side edge of the middle panel is recessed inward to form an upper fork-shaped connecting portion, and the lower front side edge is recessed inward to form a lower fork-shaped connecting portion, and the inner edges of the upper fork-shaped connecting portion and the lower fork-shaped connecting portion of the middle panel are sewn to the upper side edge and the lower side edge of the side wing panel, so that an arc-shaped recessed portion and left and right side wing portions are formed on the surface of the airbag body that contacts the occupant's head after inflation.

[0010] In a preferred embodiment of the present invention, the left and right forked portions of the upper forked connecting portion are rectangular or trapezoidal, and the left and right forked portions of the lower forked connecting portion are rectangular or trapezoidal.

[0011] In a preferred embodiment of the present invention, the upper side edge and the lower side edge of the side wing panel are all inwardly concave arcuate edges or partially inwardly concave arcuate edges.

[0012] In a preferred embodiment of the present invention, the middle panel is composed of an upper middle panel and a lower middle panel, and the rear side edge of the upper middle panel is sewn with the rear side edge of the lower middle panel.

[0013] In a preferred embodiment of the present utility model, an air intake hole connected to the gas generator is provided on the middle panel.

[0014] In a preferred embodiment of the present invention, exhaust holes are provided on the left side cut piece and / or the right side cut piece.

[0015] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0016] 1. The airbag body of the utility model is provided with an arc-shaped recessed portion and left and right wing portions at the surface that contacts the occupant's head after inflation. The left and right wing portions are located on the left and right sides of the arc-shaped recessed portion and protrude outward. The arc-shaped recessed portion and the left and right wing portions are used to support the dummy's head after deployment, thereby effectively reducing the displacement of the dummy's head and preventing the dummy's head from slipping out of the airbag, thereby preventing the dummy's head from contacting a hard object and increasing the value of the neck torque.

[0017] 2. The utility model can achieve the effect of a safety airbag with side wings without adding a drawstring, which effectively saves costs compared with traditional side wing airbags. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model after being unfolded.

[0020] Figure 2 A structural schematic diagram of an embodiment of the upper and lower middle cut pieces of the utility model.

[0021] Figure 3 A structural schematic diagram of another embodiment of the upper and lower middle panels of the utility model.

[0022] Figure 4 A structural schematic diagram of an embodiment of a side wing panel of the utility model.

[0023] Figure 5 A structural schematic diagram of another embodiment of the side wing panel of the utility model.

[0024] Figure 6 A structural schematic diagram of an embodiment of the left and right side cutting pieces of the utility model. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0026] See also Figure 1 Combined with Figures 2 to 6, the figure shows a passenger airbag with side wings, including an airbag body 100, which expands and unfolds after inflation and supports the passenger's head. The airbag body 100 is formed with an arc-shaped recessed portion 101 and left and right side wings 102a, 102b on the surface that contacts the passenger's head after inflation. The left and right side wings 102a, 102b are located on the left and right sides of the arc-shaped recessed portion 101 and protrude outward. The arc-shaped recessed portion 101 and the left and right side wings 102a, 102b are used to support the dummy's head after expansion. The arc-shaped recessed portion 101 plays a front support role, and the left and right side wings 102a, 102b play a side support role, which effectively reduces the displacement of the dummy's head, prevents the dummy's head from slipping out of the airbag airbag, causing the dummy's head to contact with hard objects and increase the value of the neck torque.

[0027] The airbag body 100 includes a middle panel 110, a left panel 120, a right panel 130 and a wing panel 140. The middle panel 110 is arranged in a folded shape when sewing. In this embodiment, the middle panel 110 is composed of an upper middle panel 110a and a lower middle panel 110b. The rear side edge of the upper middle panel 110a is sewn with the rear side edge of the lower middle panel 110b to form the middle panel 110.

[0028] During sewing, the upper front side edge of the middle panel 110 (i.e., the front side edge of the upper middle panel 110a) is sewn with the upper side edge of the side wing panel 140, and its lower front side edge (i.e., the front side edge of the lower middle panel 110b) is sewn with the lower side edge of the side wing panel 140. The outer peripheral edge of the left panel 120 is sewn with the left peripheral edge of the middle panel 110 (the left sides of the upper middle panel 110a and the lower middle panel 110b) and the left edge of the side wing panel 140. The outer peripheral edge of the right panel 130 is sewn with the right peripheral edge of the middle panel 110 (the right sides of the upper middle panel 110a and the lower middle panel 110b) and the right side edge of the side wing panel 140, thereby forming a complete airbag body 100.

[0029] At present, most passenger airbags with side wings need to add drawstrings to form the side wing effect, but the airbag body 100 of the utility model can achieve the effect of the airbag with side wings without adding drawstrings, which is specifically adopted in the following manner:

[0030] The upper front edge of the middle panel 110 (the front edge of the upper middle panel 110a) is indented inward to form an upper fork-shaped connecting portion 111, and the lower front edge (the front edge of the lower middle panel 110b) is indented inward to form a lower fork-shaped connecting portion 112. The left and right forked portions of the upper fork-shaped connecting portion 111 are rectangular, and the left and right forked portions of the lower fork-shaped connecting portion 112 are rectangular, as shown in FIG. Figure 2Alternatively, the left and right forked portions of the upper forked connecting portion 111 are trapezoidal, and the left and right forked portions of the lower forked connecting portion 112 are trapezoidal, such as Figure 3 The upper and lower edges of the side wing panels 140 are all inwardly concave arcuate edges, as shown in FIG. Figure 4 Alternatively, the upper and lower side edges of the side wing panels 140 are partially inwardly concave arc-shaped edges, such as Figure 5 shown.

[0031] During the sewing connection, the inner edges of the upper fork-shaped connecting portion 111 and the lower fork-shaped connecting portion 112 of the middle panel 110 are sewn with the upper and lower edges of the side wing panels 140, so that an arc-shaped recessed portion 101 and left and right side wing portions 102a and 120b are formed on the surface of the airbag body 100 that contacts the occupant's head after inflation.

[0032] In order to better illustrate the sewing of the airbag body of the utility model, a more detailed description is given below:

[0033] See also Figure 2 , Figure 4 and Figure 6 Combined with Figure 1 The upper fork-shaped connecting portion 111 of the upper middle panel 110a is composed of edge 1111, edge 1112, edge 1113, edge 1114, edge 1115, edge 1116 and edge 1117. The lengths of edge 1111, edge 1113, edge 1114 and edge 1116 determine the X-direction dimension of the side wing. The lengths of edge 1112 and edge 1115 determine the Y-direction dimension of the side wing. The edge 1111, edge 1112, edge 1113, edge 1114, edge 1115, edge 1116 and edge 1117 of the upper middle panel 110a are sewn to the upper side edge 141 of the side wing panel 140.

[0034] The lower fork-shaped connecting portion 112 of the lower middle panel 110b is composed of edge 1121, edge 1122, edge 1123, edge 1124, edge 1125, edge 1126 and edge 1127. The lengths of edge 1121, edge 1123, edge 1124 and edge 1126 determine the X-direction dimension of the side wing when it is unfolded. The lengths of edge 1122 and edge 1125 determine the Y-direction dimension of the side wing. The edges 1121, edge 1122, edge 1123, edge 1124, edge 1125, edge 1126 and edge 1127 of the lower middle panel 110b are sewn to the lower side edge 141 of the side wing panel 140.

[0035] The lengths of the left edge 143 and the right edge 144 of the side wing panel 140 determine the Z-direction dimension of the side wing.

[0036] The outer peripheral edge 121 of the left panel 120 is sewn to the edge 1118 of the upper middle panel 110a, the left side edge 143 of the wing panel 140, and the edge 1128 of the lower middle panel 110b.

[0037] The outer peripheral edge 131 of the right panel 130 is sewn to the edge 1119 of the upper middle panel 110a, the right side edge 144 of the wing panel 140, and the edge 1129 of the lower middle panel 110b.

[0038] In addition, the middle panel 110 is provided with an air intake hole 113 connected to the gas generator 10, so that the gas generator 10 can fill gas into the airbag body 100 when it is ignited. The left panel 120 and the right panel 130 are provided with exhaust holes 122 and 132, so that the airbag body 100 can exhaust its internal gas after inflation to avoid injury to the occupants.

[0039] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A passenger safety airbag with side wings, comprising an airbag body, wherein the airbag body expands and unfolds after being inflated to support the passenger's head; characterized in that: The airbag body is formed with an arc-shaped recessed portion and left and right wing portions on the surface that contacts the occupant's head after inflation, and the left and right wing portions are located on the left and right sides of the arc-shaped recessed portion and protrude outward; The airbag body comprises a middle panel, a left panel, a right panel and a side panel. The middle panel is folded in half during sewing, and its upper front edge is sewn with the upper edge of the side panel, and its lower front edge is sewn with the lower edge of the side panel. The outer peripheral edge of the left panel is sewn with the left peripheral edge of the middle panel and the left edge of the side panel, and the outer peripheral edge of the right panel is sewn with the right peripheral edge of the middle panel and the right edge of the side panel. The upper front side edge of the middle piece is concave inward to form an upper fork-shaped connecting portion, and the lower front side edge is concave inward to form a lower fork-shaped connecting portion. The inner edges of the upper fork-shaped connecting portion and the lower fork-shaped connecting portion of the middle piece are sewn with the upper side edge and the lower side edge of the side wing piece, so that an arc-shaped recessed portion and left and right side wing portions are formed on the surface of the airbag body that contacts the occupant's head after inflation.

2. The passenger airbag with side wings according to claim 1, characterized in that: The left and right forked portions of the upper fork-shaped connecting portion are rectangular or trapezoidal, and the left and right forked portions of the lower fork-shaped connecting portion are rectangular or trapezoidal.

3. The passenger airbag with side wings according to claim 1, characterized in that: The upper side edge and the lower side edge of the side wing cutting piece are all inwardly concave arc edges or partially inwardly concave arc edges.

4. The passenger airbag with side wings according to any one of claims 1 to 3, characterized in that: The middle panel is composed of an upper middle panel and a lower middle panel, and the rear side edge of the upper middle panel is sewn with the rear side edge of the lower middle panel.

5. The passenger airbag with side wings according to claim 4, characterized in that: The middle cut piece is provided with an air intake hole connected to the gas generator.

6. The passenger airbag with side wings according to claim 5, characterized in that: The left side cutting piece and / or the right side cutting piece are provided with exhaust holes.

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