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KR-20260062715-A - AIRBAG APPARATUS

KR20260062715AKR 20260062715 AKR20260062715 AKR 20260062715AKR-20260062715-A

Abstract

The disclosed airbag device comprises: a side chamber embedded in a seat back included in a vehicle seat and protruding from the side of the seat back to deploy toward the side of a seated person; and a front chamber gas-flowably connected to the side chamber, protruding from the side chamber in a bending direction to deploy toward the front of the seated person, and comprising a base panel coupled to the side chamber and a cover panel coupled to the outer periphery of the base panel. The front chamber is characterized in that the thickness of the upper portion of the front chamber is greater than the thickness of the intermediate portion between the upper and lower portions of the front chamber.

Inventors

  • 황보상원
  • 고병만

Assignees

  • 현대모비스 주식회사

Dates

Publication Date
20260507
Application Date
20241029

Claims (10)

  1. A side chamber that is contained within a seatback included in a vehicle seat and protrudes from the side of the seatback and unfolds to face the side of a person seated on the seat; and A front chamber comprising: a base panel coupled to the side chamber, which is gas-flow-able connected to the side chamber and extends in a bending direction from the side chamber to face the front of the seat, and a cover panel coupled to the outer periphery of the base panel; and An airbag device characterized in that the thickness of the upper portion of the front chamber is thicker than the thickness of the middle portion between the upper and lower portions of the front chamber.
  2. In Article 1, The above base panel is, A first base portion positioned opposite the above side chamber, A second base portion that is bent at one side in the width direction of the first base portion and positioned opposite the seat, and An airbag device characterized by including a third base portion that is bent at the other side in the width direction of the first base portion and positioned facing away from the seated person with the second base portion in between.
  3. In Article 2, The above cover panel is, A first cover portion spaced apart from the first base portion and positioned opposite to the first base portion, A second cover portion that is folded at one side in the longitudinal direction of the first cover portion and is positioned above the first cover portion, and An airbag device characterized by including a third cover portion that is folded at the other side in the longitudinal direction of the first cover portion and is located below the first cover portion.
  4. In Paragraph 3, The above first cover part is, A tapered portion that increases in width toward the top at an intermediate point between the top and bottom of the first cover portion, and An airbag device characterized by including a narrow section extending to the bottom from the midpoint of the first cover section with a width equal to the width of the tapered section.
  5. In Paragraph 4, The second base part and the third base part are each, A base inclined edge portion corresponding to the inclined cover inclined edge portion of the tapered portion, and An airbag device characterized by including a base parallel edge portion corresponding to the cover parallel edge portion of the narrow portion parallel to the longitudinal direction of the cover panel.
  6. In Paragraph 3, The above first cover part is, A first tapered portion that increases in width toward the top at an intermediate point between the top and bottom of the first cover portion, and An airbag device characterized by including a second tapered section that increases in width from the midpoint of the first cover section toward the bottom.
  7. In Article 6, The second base part and the third base part are each, A first base inclined edge portion corresponding to the inclined first cover inclined edge portion of the first tapered portion, and An airbag device characterized by including a second base inclined edge portion corresponding to the inclined second cover edge portion of the second tapered portion.
  8. In Article 2, An airbag device characterized in that the front chamber comprises at least one front chamber internal tether for limiting the thickness of the front chamber.
  9. In Article 2, The above side chamber is, An inner panel positioned opposite the seat and to which the first base part is attached, and It includes an outer panel positioned with its back to the seated person between the inner panels mentioned above, and An airbag device characterized in that the inner panel and the base panel each include through holes aligned with each other so that gas can flow between the side chamber and the front chamber.
  10. In Article 9, An airbag device characterized by the perimeter of the through hole of the inner panel and the perimeter of the through hole of the base panel being sewn together so as not to leak gas between the inner panel and the base panel.

Description

Airbag apparatus The present invention relates to an airbag device, and more specifically, to an airbag device that deploys to the side and front of a seated person in the event of a collision. In the event of a frontal or side collision, the upper body of the occupant in the driver's or passenger's seat may shift, potentially causing a significant impact even if the front airbag deploys. Additionally, injuries to the occupants may occur due to collisions between the occupants or by impacts with the armrest or seat. Therefore, an airbag device that deploys to the sides and front of the occupant in the event of a vehicle collision is required. The background technology of the present invention is disclosed in Korean Published Patent Application No. 10-2022-0029737 (published March 8, 2022; Title of Invention: Peripheral Airbag Assemblies). FIG. 1 is a perspective view illustrating an airbag device according to a first embodiment of the present invention in an inflated and deployed state. Figure 2 is a front view schematically showing the interior of the seat back of Figure 1. FIG. 3 is an unfolded view illustrating an example of an inner panel and an outer panel included in the side chamber of FIG. 1. FIG. 4 is an unfolded view illustrating an example of a base panel and a cover panel included in the front chamber of FIG. 1. Figure 5 is an unfolded view showing the inner panel of Figure 3 and the base panel of Figure 4 joined together in an overlapping manner. FIG. 6 is a perspective view showing the front chamber, in which the base panel and cover panel of FIG. 4 are combined, expanded and unfolded. FIG. 7 is a schematic side view illustrating the front chamber of FIG. 6 expanded and unfolded when a collision occurs in a vehicle. FIG. 8 is an unfolded view illustrating an example of a base panel and a cover panel included in the front chamber of an airbag device according to a second embodiment of the present invention. FIG. 9 is a perspective view showing the front chamber, in which the base panel and cover panel of FIG. 8 are combined, expanded and unfolded. Hereinafter, an airbag device according to an embodiment of the present invention will be described in detail with reference to the attached drawings. The terminology used in this specification is used to appropriately express preferred embodiments of the present invention, and may vary depending on the intent of the user or operator or the conventions of the field to which the present invention belongs. Therefore, the definitions of these terms should be based on the content throughout this specification. FIG. 1 is a perspective view showing an airbag device according to a first embodiment of the present invention in an inflated and deployed state; FIG. 2 is a front view schematically showing the interior of the seat back of FIG. 1; FIG. 3 is an unfolded view showing an example of an inner panel and an outer panel included in the side chamber of FIG. 1; FIG. 4 is an unfolded view showing an example of a base panel and a cover panel included in the front chamber of FIG. 1; FIG. 5 is an unfolded view showing the inner panel of FIG. 3 and the base panel of FIG. 4 combined in an overlapping manner; FIG. 6 is a perspective view showing the front chamber inflated and deployed with the base panel and cover panel of FIG. 4 combined; and FIG. 7 is a side view schematically showing the front chamber of FIG. 6 inflated and deployed when a collision accident occurs in a vehicle. Referring to FIGS. 1 and 2, an airbag device (100) according to a first embodiment of the present invention includes a side chamber (110) and a front chamber (200). As shown in FIG. 1, a pair of airbag devices (100) may be placed on both the left and right sides of the seat (20). On the other hand, unlike as shown in FIG. 1, only one airbag device (100) may be placed on one of the left and right sides of the seat (20). The seat (20) of the vehicle may include a seat stool (21) that supports the buttocks of the seated person (1), a seatback (30) that supports the back of the seated person (1), and a headrest (50) that supports the head of the seated person. The seat back (30) may include a seat back frame (32, 34). The seat back frame (32, 34) may include a pair of side frames (32) spaced apart in the left and right directions, and an upper frame (34) connected to the upper portion of the pair of side frames (32). The side frames (32) and the upper frame (34) may be formed from a metal material, such as stainless steel, for example. The upper frame (34) may include a headrest holder (36). A headrest pin (not shown) for attaching the headrest (50) to the seat back (30) may be detachably attached to the headrest holder (36). The seat back (30) may further include an outer shell (39) that wraps around the seat back frame (32, 34), and a cushioning material (38) placed on the inner side of the outer shell (39) to cushion the impact on the seated person. A perforation line (not shown) capable