KR20140014928A - Air-bag apparatus for vehicles - Google Patents

Air-bag apparatus for vehicles Download PDF

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Publication number
KR20140014928A
KR20140014928A KR1020120082290A KR20120082290A KR20140014928A KR 20140014928 A KR20140014928 A KR 20140014928A KR 1020120082290 A KR1020120082290 A KR 1020120082290A KR 20120082290 A KR20120082290 A KR 20120082290A KR 20140014928 A KR20140014928 A KR 20140014928A
Authority
KR
South Korea
Prior art keywords
airbag cushion
airbag
tether
passenger
vehicle
Prior art date
Application number
KR1020120082290A
Other languages
Korean (ko)
Inventor
박해권
김건우
Original Assignee
현대모비스 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대모비스 주식회사 filed Critical 현대모비스 주식회사
Priority to KR1020120082290A priority Critical patent/KR20140014928A/en
Publication of KR20140014928A publication Critical patent/KR20140014928A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/2334—Expansion control features
    • B60R21/2338—Tethers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/2334—Expansion control features
    • B60R21/2338—Tethers
    • B60R2021/23382—Internal tether means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0136—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to actual contact with an obstacle, e.g. to vehicle deformation, bumper displacement or bumper velocity relative to the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/205—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in dashboards

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)

Abstract

The present invention provides an airbag cushion that is deployed forward toward the passenger when gas is introduced;
Is disposed inside the airbag cushion, comprising a tether portion for separating the airbag cushion into the upper and lower, the tether portion is coupled to the left and right sides of the airbag cushion, spaced apart from the front surface of the airbag cushion to form a nozzle portion The present invention relates to a vehicle airbag apparatus having improved airbag cushion deployment.

Description

Air-bag apparatus for vehicles

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle airbag apparatus, and more particularly, to a vehicle airbag apparatus having improved deployability of an airbag cushion.

In general, an airbag device of a vehicle is installed in front of a driver's seat or front passenger's seat and is installed for the purpose of protecting the life and the body of a driver and a passenger while the airbag cushion is momentarily inflated during a collision of the vehicle.

Vehicle airbags are divided into driver airbags mounted on the steering wheel to protect the driver of the driver's seat and passenger airbags mounted on the instrument panel in the front of the passenger's seat to protect passengers of the passenger seat. The driver's airbag is a mandatory feature and the passenger seat airbag is an option. However, in order to protect passengers, vehicles that use a passenger seat airbag as an essential specification are increasing.

The deployment structure of the passenger seat airbag device is a structure in which the airbag cushion is in full bloom and the passenger's head, neck and chest are sequentially contacted before the passenger's head and chest contact each other. In addition, the passenger seat airbag device is generally a structure of one chamber to adjust the internal pressure through the vent hole of the airbag cushion when the passenger contacts. In addition, in order to secure the stability of the shape of the deployment, the upper and lower tethers are placed in front of the restraint distance to the passengers. In other words, the tether is an auxiliary means for maintaining the shape of the airbag cushion in full bloom.

This passenger airbag device is the most important deployment stability and pressure control. Therefore, there must be a structure for fixing the top and bottom and left and right, otherwise the up and down and left and right flow occurs before the airbag cushion is in full bloom. Therefore, it was difficult to control the pressure regulation, there was a big problem of risk of head and neck injury.

The problem to be solved by the present invention is to provide a vehicle airbag device for protecting the passenger by improving the deployability of the airbag cushion.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, an airbag device for a vehicle according to an embodiment of the present invention, the airbag cushion which is deployed forward toward the passenger when the gas is introduced; Is disposed inside the airbag cushion, comprising a tether portion for separating the airbag cushion into the upper and lower, the tether portion is coupled to the left and right sides of the airbag cushion, spaced apart from the front surface of the airbag cushion to form a nozzle portion do.

The details of other embodiments are included in the detailed description and drawings.

According to the vehicular airbag apparatus of the present invention, there are one or more of the following effects.

First, there is an advantage to improve the deployment of the airbag cushion.

Second, there is an advantage of simplifying the assembly by simplifying the work process.

Third, there is an advantage in that the weight and cost are reduced due to the removal of spare parts.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 is a side cross-sectional view of a vehicle airbag apparatus according to an embodiment of the present invention.
2 is a perspective view of an airbag cushion according to an embodiment of the present invention.
3 is a side cross-sectional view of an airbag cushion according to an embodiment of the present invention.
Figure 4 is a side cross-sectional view showing the operation of the vehicle airbag apparatus according to an embodiment of the present invention.
5 is a perspective view schematically showing the operation of the vehicle airbag apparatus according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

Hereinafter, the present invention will be described with reference to the drawings for describing the vehicle airbag apparatus 10 according to embodiments of the present invention.

1 is a side cross-sectional view of a vehicle airbag apparatus according to an embodiment of the present invention, Figure 2 is a perspective view of an airbag cushion according to an embodiment of the present invention, Figure 3 is an airbag cushion according to an embodiment of the present invention Side cross section view.

1 to 3, the vehicle airbag device 10 according to an embodiment of the present invention is disposed above the glove box (not shown) disposed in the passenger seat. The vehicle airbag apparatus 10 includes an inflator 400, an airbag cushion 100, a tether unit 200, and an airbag housing 500.

The airbag housing 500 has a mounting space for mounting the inflator 400 at a lower portion 120 thereof, and a storage space for accommodating the airbag cushion 100 is formed at the upper portion 110. The airbag housing 500 is open at the upper side and is covered by the instrument panel.

The inflator 400 is disposed behind the airbag cushion 100. Therefore, the inflator 400 is coupled to the retainer provided at the rear of the airbag cushion 100.

The inflator 400 receives a control signal from an air-bag control unit (ACU) that is a control device in a vehicle crash, and generates gas by exploding a gas generating medium included therein. Therefore, the inflator 400 generates high-temperature and high-pressure gas when the vehicle collides and injects it into the airbag cushion 100. The inflator 400 generates high-pressure gas so that the airbag cushion 100 can fully bloom toward the passenger P. It is preferable to make it.

The airbag cushion 100 is deployed forward toward the passenger P when high temperature and high pressure gas generated in the inflator 400 is introduced. Therefore, the airbag cushion 100 may serve to protect the passenger P by preventing the passenger P from colliding with the instrument panel inside the vehicle when the airbag cushion 100 is deployed toward the passenger P.

Airbag cushion 100 is preferably made of a fabric (fabric) material to be in contact with the passenger (P). In addition, the airbag cushion 100 is folded in a plurality of times and stored in the airbag housing 500.

The airbag cushion 100 is separated into the upper part 110 and the lower part 120 by the tether part 200, and the upper part 110 of the air bag cushion 100 is formed larger than the lower part 120. Therefore, the upper part 110 of the airbag cushion 100 is protected by contacting the head and neck of the passenger P, and the lower part 120 of the airbag cushion 100 is protected by contacting the chest and legs of the passenger P. Done. Vent holes (not shown) through which gas is discharged may be formed at left and right sides of the airbag cushion 100.

The tether part 200 is disposed inside the airbag cushion 100, and separates the inner space of the airbag cushion 100 into an upper part 110 and a lower part 120. The tether part 200 is for securing stability of the shape of the deployment, and regulates the restraint distance to the passenger P when the airbag cushion 100 is deployed. That is, the tether portion 200 is an auxiliary means for maintaining the shape of the airbag cushion 100 at full bloom.

The tether unit 200 is coupled to the left and right sides of the airbag cushion 100 to serve as a left and right horizontal tether. The horizontal tether refers to a tether that restrains the development of the left and right sides of the airbag cushion 100.

Tether portion 200 is preferably coupled to the left and right sides of the airbag cushion 100. Therefore, the tether portion 200 is coupled to the left and right sides of the airbag cushion 100, so that even if the high-pressure gas initially flows into the upper portion 110 of the airbag cushion 100, the upper portion 110 of the airbag cushion 100 is It can be constrained to develop stably.

The tether part 200 is spaced apart from the front surface 130 of the airbag cushion 100 in contact with the passenger P to form the nozzle part 300. Therefore, the high pressure gas introduced into the upper portion 110 of the airbag cushion 100 flows to the lower portion 120 of the airbag cushion 100 through the nozzle unit 300.

The tether portion 200 is formed such that one end of the front surface 130 side of the airbag cushion 100 is bent downward. Therefore, the gas may flow smoothly from the upper portion 110 of the airbag cushion 100 to the lower portion 120 of the airbag cushion 100 through the nozzle unit 300. In addition, the other end of the tether portion 200 is coupled to the rear side of the lower 120 of the airbag cushion 100.

The tether unit 200 may adjust the front and rear widths B of the nozzle unit 300 by adjusting the separation distance from the front surface 130 of the airbag cushion 100. By adjusting the front and rear widths B of the nozzle unit 300, the full speed of the lower portion 120 of the airbag cushion 100 and the pressure holding time of the upper portion 110 of the airbag cushion 100 may be adjusted.

Tether portion 200 is formed so that the trapezoidal shape is bent "S". Therefore, the trapezoidal shape serves as a transverse tether, and the bent "S" serves as a longitudinal tether. This restrains the left and right sides of the airbag cushion 100 to ensure the stability of the deployment. However, in another embodiment of the present invention, the tether portion 200 may have a rectangular shape in a wavy shape.

The tether portion 200 is disposed to correspond to the lower portion of the front surface 130 of the airbag cushion 100 so that the upper portion 110 of the airbag cushion 100 is larger than the lower portion 120 of the airbag cushion 100. Be sure to Therefore, the volume of the upper portion 110 of the airbag cushion 100 is increased.

The tether portion 200 adjusts the distance A between the vertex bent downward and the lower end 120 of the airbag cushion 100 to develop the airbag cushion 100 and the lower portion 120 of the airbag cushion 100. You can adjust the volume.

Referring to the operation of the vehicle airbag device 10 according to the present invention configured as described above are as follows.

Figure 4 is a side cross-sectional view showing the operation of the vehicle airbag apparatus according to an embodiment of the present invention, Figure 5 is a perspective view schematically showing the operation of the vehicle airbag apparatus according to an embodiment of the present invention.

4 and 5, when a vehicle collision occurs, the ACU transmits a control signal notifying the fact of the collision to the vehicle airbag device 10. Accordingly, the vehicle airbag device 10 allows the inflator 400 to generate high temperature and high pressure gas.

The high temperature and high pressure gas generated in the inflator 400 is injected into the airbag cushion 100 through a retainer provided at the rear of the airbag cushion 100.

The airbag cushion 100 is separated into the upper part 110 and the lower part 120 through the tether part 200 disposed therein, and gas is first injected into the upper part 110 of the airbag cushion 100. Thus, the upper portion 110 of the airbag cushion 100 is first deployed. After the upper portion 110 of the airbag cushion 100 is developed to a considerable extent, the gas flows through the nozzle portion 300 to the lower portion 120 of the airbag cushion 100.

Thus, the lower portion 120 of the airbag cushion 100 is deployed. Therefore, a delay time occurs in full bloom time of the upper portion 110 of the airbag cushion 100 and full bloom time of the lower portion 120 of the airbag cushion 100. Therefore, by maintaining the internal pressure of the upper portion 110 of the airbag cushion 100 for a predetermined time to improve the injury of the head of the passenger (P), by adjusting the pressure applied to the head and neck to improve the neck injury It may be.

Accordingly, the tether unit 200 may reduce the deployment flow of the airbag cushion 100 by simultaneously acting as a horizontal tether and a vertical tether of the airbag cushion 100.

In addition, the manufacturer adjusts the amount of gas flowing into the lower portion 120 of the airbag cushion 100 by adjusting the width B of the nozzle unit 300 according to the type of the vehicle, the upper portion 110 of the airbag cushion 100. By maintaining the internal pressure of the for a certain time can improve the injury of the head of the passenger (P).

In addition, the pressure applied to the head 110 and the head 110 of the airbag cushion 100 may be controlled by adjusting the delay time and the gas inflow amount described above. Therefore, the visual injury may be improved.

Although the above has been shown and described with respect to the preferred embodiments of the present invention, the present invention is not limited to the above-described specific embodiments, the present invention without departing from the spirit of the invention claimed in the claims Various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

10: vehicle airbag device 100: airbag cushion
110: upper part 120: lower part
130: front side 200: tether part
300: nozzle 400: inflator
500: airbag housing A: distance
B: Width P: Passenger

Claims (7)

An airbag cushion deployed forward toward the passenger when gas is introduced;
Is disposed inside the airbag cushion, and includes a tether portion for separating the airbag cushion to the upper and lower,
The tether part is coupled to the left and right side surfaces of the airbag cushion, and is spaced apart from the front surface of the airbag cushion for forming a vehicle airbag apparatus. The method of claim 1,
The tether part is a vehicle airbag apparatus so that the upper portion of the airbag cushion is formed larger than the lower portion of the airbag cushion. The method of claim 1,
The tether portion is bent downward one end of the front side, the other end is a vehicle airbag apparatus is coupled to the lower rear side of the airbag cushion. The method of claim 1,
The tether portion is formed to be bent "S" vehicle airbag apparatus. The method of claim 1,
An upper portion of the airbag cushion supports the head and neck of the passenger,
A lower portion of the airbag cushion is a vehicle airbag device for supporting the passenger's chest. The method of claim 1,
The tether part is sewn and coupled to the left and right side surfaces of the airbag cushion. The method of claim 1,
And an inflator disposed behind the airbag cushion to generate the gas.
KR1020120082290A 2012-07-27 2012-07-27 Air-bag apparatus for vehicles KR20140014928A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120082290A KR20140014928A (en) 2012-07-27 2012-07-27 Air-bag apparatus for vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120082290A KR20140014928A (en) 2012-07-27 2012-07-27 Air-bag apparatus for vehicles

Publications (1)

Publication Number Publication Date
KR20140014928A true KR20140014928A (en) 2014-02-06

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KR1020120082290A KR20140014928A (en) 2012-07-27 2012-07-27 Air-bag apparatus for vehicles

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180072716A (en) 2015-12-03 2018-06-29 미쓰이 가가쿠 토세로 가부시키가이샤 Title: Release film for process, use thereof, and manufacturing method of resin sealing semiconductor using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180072716A (en) 2015-12-03 2018-06-29 미쓰이 가가쿠 토세로 가부시키가이샤 Title: Release film for process, use thereof, and manufacturing method of resin sealing semiconductor using the same

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