CN214355911U

CN214355911U - Passenger-side overhead air bag device

Info

Publication number: CN214355911U
Application number: CN202023334897.1U
Authority: CN
Inventors: 邵祺; 许哲纲
Original assignee: Nanjing Protech Safety Systems Co ltd
Current assignee: Nanjing Protech Safety Systems Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-10-08
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a copilot overhead gasbag device belongs to car safety technical field. The passenger overhead airbag device comprises an airbag shell, an inflation assembly and an airbag bag; aerify to the air bag through the subassembly and make the air bag expand and extend out from the gasbag casing, be equipped with the gasbag stretching strap between gasbag lower part and the gasbag upper portion, the gasbag stretching strap with the gasbag lower part to keeping away from pulling of preceding windshield to avoid the gasbag lower part to pile up in the contained angle between well accuse platform and preceding windshield, make the gasbag lower part extend to passenger and well accuse platform between, cushion the protection to the passenger. Compared with the prior art, the utility model provides a copilot overhead gasbag device security is higher.

Description

Passenger-side overhead air bag device

Technical Field

The utility model belongs to the technical field of car safety, especially, copilot overhead gasbag device.

Background

In the rapid development of the automobile industry, the design and development of the overhead airbag can completely liberate the center console and adapt to the large trend of the change of the shape of the center console.

During inflation, the overhead airbag easily enters an included angle between the center console and the front windshield along the direction of the opening of the module shell along the front windshield, and accumulation is formed between the included angle and the included angle. Further, the air bag and the outer surface of the instrument panel generate friction, and the air bag cannot form a designed shape after being fully filled, so that the air bag cannot play a role in buffering and protecting between a passenger and a center console.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model provides a copilot overhead air bag device.

The utility model provides a following technical scheme:

a passenger overhead airbag apparatus comprising:

the air bag shell is fixed on the top of the automobile, and one end of the air bag shell, which is close to the front windshield, is opened;

the inflation assembly is arranged in the air bag shell;

folding accept the gasbag bag in the gasbag casing, work as when the subassembly of aerifing aerifys the gasbag bag, the gasbag bag expands from the open end of gasbag casing and extends gasbag upper portion and the gasbag lower part that forms the intercommunication, the gasbag lower part is connected with the one end that gasbag upper portion is close to preceding windshield, be equipped with between gasbag lower part and the gasbag upper portion and be used for the gasbag lower part to keeping away from the gasbag stretching strap that preceding windshield dragged.

In a further embodiment, one end of the air bag drawstring is fixedly connected with the position, close to the middle, of the upper part of the air bag, and the other end of the air bag drawstring is fixedly connected with the side edge of the lower part of the air bag; when the open end inflation of gasbag casing extended, gasbag upper portion and gasbag lower part can be followed preceding windshield and extended, and setting up of gasbag stretching strap can be with the gasbag lower part to keeping away from pulling of preceding windshield, and then in the gasbag lower part was avoided piling up the contained angle between well accuse platform and the preceding windshield, made the gasbag lower part extend between passenger and the well accuse platform, cushioned protection to the passenger.

In a further embodiment, the number of the air bag drawstrings is two, and the two are mirror images.

In a further embodiment, the top of the opening end of the air bag shell is provided with a guide plate which inclines downwards, the air bag is guided by the guide plate to expand and extend out of the air bag shell, and meanwhile, the impact of the air bag on the front windshield is reduced.

In a further embodiment, at least one vent hole is formed on one side of the lower part of the air bag, which is close to the front windshield; when the air bag is inflated, part of gas is discharged to one side of the front windshield from the vent hole, the reaction force of the discharged gas enables the lower part of the air bag to extend to one side far away from the front windshield, and the extending angle of the air bag is further adjusted.

In a further embodiment, the inflation assembly comprises an inflator and an air guide bag connected with the inflator, the air guide bag is contained in the airbag bag, and a plurality of air guide holes are formed in the air guide bag.

Has the advantages that: the utility model provides a passenger-side overhead air bag device, which comprises an air bag shell, an inflation component and an air bag; aerify to the air bag through the subassembly and make the air bag expand and extend out from the gasbag casing, be equipped with the gasbag stretching strap between gasbag lower part and the gasbag upper portion, the gasbag stretching strap with the gasbag lower part to keeping away from pulling of preceding windshield to avoid the gasbag lower part to pile up in the contained angle between well accuse platform and preceding windshield, make the gasbag lower part extend to passenger and well accuse platform between, cushion the protection to the passenger. Compared with the prior art, the utility model provides a copilot overhead gasbag device security is higher.

Drawings

Fig. 1 is a schematic structural view of a passenger overhead airbag device according to the present invention.

Fig. 2 is a schematic structural view of the passenger overhead airbag apparatus of the present invention when deployed in a vehicle.

Fig. 3 is a schematic structural view of the airbag of the present invention when deployed.

Fig. 4 is a schematic structural view of the inflation assembly and the airbag of the present invention.

In fig. 1 to 4, the following symbols are respectively given: the airbag comprises an airbag housing 10, a guide plate 11, an inflation assembly 20, an inflator 21, an air guide bag 22, an airbag bag 30, an airbag upper portion 31, an airbag lower portion 32, a vent hole 321, an airbag pull belt 33, a roof 100, a front windshield 200 and a center console 300.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

The applicant has found that during inflation the overhead airbag tends to dig from the opening of the module housing along the front windshield into and build up between the angle between the center console and the front windshield. Further, the air bag and the outer surface of the instrument panel generate friction, and the air bag cannot form a designed shape after being fully filled, so that the air bag cannot play a role in buffering and protecting between a passenger and a center console.

In order to solve the problems in the prior art, as shown in fig. 1, the present invention provides a passenger side overhead airbag apparatus. The device includes an airbag housing 10, an inflator assembly 20, and an airbag 30.

Referring to fig. 1, 2, and 3, the airbag housing 10 is fixed to a side of the interior of the roof 100 of the automobile near the front windshield 200. One end of the airbag housing 10 near the front windshield 200 is opened. The inflator assembly 20 is provided in the airbag housing 10. The airbag 30 is housed in the airbag housing 10 in a folded state. When the airbag 30 is inflated by the inflator assembly 20, the airbag 30 expands from the open end of the airbag housing 10 to extend out of the upper airbag portion 31 and the lower airbag portion 32, which form a communication. Wherein the upper part 31 of the airbag is of a cuboid structure. The bag lower portion 32 is connected to an end of the bag upper portion 31 near the front windshield 200. An air bag drawstring 33 is arranged between the air bag lower part 32 and the air bag upper part 31, and the air bag lower part 32 is pulled away from the front windshield 200 through the air bag drawstring 33, so that the air bag lower part 32 is prevented from being accumulated in an included angle between the center console 300 and the front windshield, the air bag lower part 32 extends between the passenger and the center console 300, and the passenger is protected in a buffering way. At this time, the bag upper portion 31 is deformed from the rectangular parallelepiped configuration to the arc configuration convex toward the front windshield 200 side by the pulling force applied from the bag pulling tether 33.

Specifically, one end of the air bag drawstring 33 is fixedly connected with the position of the air bag upper part 31 close to the middle, and the other end of the air bag drawstring 33 is fixedly connected with the side edge of the air bag lower part 32; when the airbag 30 expands and extends from the opening end of the airbag housing 10, the upper airbag portion 31 and the lower airbag portion 32 extend along the front windshield 200, the lower airbag portion 32 can be pulled away from the front windshield 200 by the arrangement of the airbag pulling straps 33, and the lower airbag portion 32 is prevented from being accumulated in an included angle between the console 300 and the front windshield. In this embodiment, the number of the air bag drawstrings 33 is set to two. The two drawstrings 33 are arranged on both sides of the airbag 30 in mirror symmetry, so that the pulling force of the drawstrings 33 on the airbag lower portion 32 is balanced.

In a further embodiment, the top of the open end of the air bag housing 10 is provided with a guide plate 11 which is inclined downwards. When the airbag belt expands and extends out of the airbag housing 10, the guide plate 11 blocks the airbag 30, so that the airbag 30 is prevented from directly inflating the front windshield 200 of the automobile, and the risk of the front windshield 200 being cracked is reduced. Meanwhile, the guide plate 11 guides the airbag 30, adjusts the angle of the airbag 30 when expanding and extending out of the airbag housing 10, so that the airbag 30 is ejected downwards in an inclined manner, and the airbag 30 is prevented from extending along the front windshield 200 and accumulating in the included angle between the console 300 and the front windshield.

In a further embodiment, at least one vent hole 321 is formed in the lower portion 32 of the airbag on a side thereof adjacent to the front windshield 200. On the one hand, the air pressure in the air bag 30 is prevented from being too strong to cause injury when an occupant collides. On the other hand, when the airbag 30 inflates, a part of the gas is discharged from the gas discharge hole 321 to the front windshield 200 side, the reaction force of the discharged gas extends the airbag lower portion 32 to the side away from the front windshield 200, and the angle at which the airbag 30 extends is further adjusted to prevent the airbag 30 from extending along the front windshield 200 and accumulating in the angle between the console 300 and the front windshield.

Referring to fig. 4, the inflation assembly 20 includes an inflator 21 and an airbag 22. The inflator 21 is provided at an end of the airbag housing 10 remote from the opening thereof. The airbag 22 is housed in the airbag bag 30. And, the air guide bag 22 is provided with a plurality of air guide holes. The gas outlet end of the inflator 21 is connected to the gas bag 22. When the inflator 21 inflates the air bag 22, the gas in the air bag 22 rapidly enters the air bag 30 through the gas vent, so that the air bag 30 rapidly expands and extends out of the air bag housing 10. Since the airbag 30 is folded and housed in the airbag housing 10, if the inflation is performed directly by the inflator 21, the airbag 30 is easily damaged due to the concentration of the gas flow. The airbag 22 can guide the flow of the gas to multiple directions to prevent the concentration of the gas flow, thereby protecting the airbag 30.

Before the automobile is not collided, the air bag 30 is folded and put into the shell, and the specific folding steps are as follows: the two sides of the airbag 30 are tightened to roll and fold the left and right airbag of the airbag 30, and the total is 3 folds. The surface of the lower part 32 of the air bag, which is contacted with the passenger, is rolled and folded tightly, the two sides are folded towards the middle to wrap the surface contacted with the passenger, and then the rolling and folding are started from the lower part 32 of the air bag, and the total number is 2; finally, the airbag 30 is completely retracted into the airbag housing 10 by Z-folding.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be modified to perform various equivalent transformations, which all belong to the protection scope of the present invention.

Claims

1. A passenger overhead airbag apparatus, comprising:

the inflation assembly is arranged in the air bag shell;

2. A passenger overhead airbag apparatus according to claim 1, wherein one end of the airbag pulling strap is fixedly connected to a position near the center of the upper portion of the airbag, and the other end of the airbag pulling strap is fixedly connected to a side edge of the lower portion of the airbag.

3. A passenger overhead airbag apparatus according to claim 2, wherein the number of the bag drawstrings is two and mirror images.

4. A passenger overhead airbag apparatus according to claim 1, wherein a top portion of the open end of the airbag housing is provided with a guide plate inclined downward.

5. A passenger overhead airbag apparatus according to claim 1, wherein at least one vent hole is formed in a side of the lower portion of the airbag adjacent to the front windshield.

6. The passenger overhead airbag apparatus according to claim 1, further comprising an inflator provided in the airbag housing, and an air guide bag connected to the inflator, the air guide bag being accommodated in the airbag housing, the air guide bag being provided with a plurality of air guide holes.