KR20130062521A - An air bag cushion for reducing injuries having a vent control means - Google Patents

An air bag cushion for reducing injuries having a vent control means Download PDF

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Publication number
KR20130062521A
KR20130062521A KR1020110128805A KR20110128805A KR20130062521A KR 20130062521 A KR20130062521 A KR 20130062521A KR 1020110128805 A KR1020110128805 A KR 1020110128805A KR 20110128805 A KR20110128805 A KR 20110128805A KR 20130062521 A KR20130062521 A KR 20130062521A
Authority
KR
South Korea
Prior art keywords
vent
tether
airbag
air bag
cushion
Prior art date
Application number
KR1020110128805A
Other languages
Korean (ko)
Inventor
조성수
Original Assignee
현대자동차주식회사
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 현대자동차주식회사 filed Critical 현대자동차주식회사
Priority to KR1020110128805A priority Critical patent/KR20130062521A/en
Publication of KR20130062521A publication Critical patent/KR20130062521A/en

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    • 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
    • B60R21/203—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in steering wheels or steering columns
    • 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
    • B60R21/239—Inflatable members characterised by their venting 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
    • B60R2021/003—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks characterised by occupant or pedestian
    • B60R2021/0039—Body parts of the occupant or pedestrian affected by the accident
    • B60R2021/0048—Head
    • 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
    • B60R2021/01204—Actuation parameters of safety arrangents
    • B60R2021/01211—Expansion of air bags
    • 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

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

Abstract

PURPOSE: An airbag cushion for reducing injuries with a vent control member is provided to prevent the injuries to a passenger by improving the safety through the increase of a support force of an airbag. CONSTITUTION: An airbag cushion for reducing injuries with a vent control member comprises an airbag(10), a vent(20), a vent tether(40), and a vent control member. The vent is formed on both sides of the airbag and includes a vent hole(22) to discharge the inner pressure into the vehicle. The vent tether is hung on a tether cutter installed inside an airbag housing to shield the vent hole. The vent control member includes a horizontal tether(50) where one side is connected to the vent tether inside the airbag and the other side is adhered to a side panel of the airbag.

Description

Air bag cushion for injury reduction with vent control means {AN AIR BAG CUSHION FOR REDUCING INJURIES HAVING A VENT CONTROL MEANS}

The present invention relates to an airbag cushion for reducing injuries having a vent adjustment means that can prevent the vehicle from colliding with the interior material by closing the vent hole when the passenger approaches the interior airbag while pressing the deployed airbag during a vehicle collision.

In general, in order to protect the passengers in the event of a vehicle crash, the driver uses an air bag module mounted on a steering wheel or an instrument panel.

The airbag module deploys an air bag during a vehicle crash so that a driver or a passenger may not collide with a crash pad or a wind shield provided inside the vehicle, thereby reducing injury due to a collision.

The airbag module is composed of an airbag housing cover, an inflator for generating gas when the vehicle collides, and an airbag deployed and operated by the gas generated by the inflator, and a separate sensor and an inflator primer It consists of Electronic Control Module which explodes.

The inflator includes a primer ignited by an operation control signal output from the electronic control module, and a gas generator that generates gas as the primer is ignited.

In the general airbag module configured as described above, when the driving speed drops sharply due to a frontal collision, a shock sensor detects this to generate a preset signal, and the preconditioning control module that recognizes the shock signal output from the shock sensor is a primer. Ignition burns the gas generator.

In this case, since the gas generator rapidly generates gas, the airbag is rapidly inflated and deployed, and the deployed airbag cushion protects the passenger by preventing the head and chest of the passenger from moving forward by the inertia. At the same time, the inflated gas is discharged into the vent hole formed in the airbag cushion to absorb the impact energy and effectively buffer the impact force transmitted to the passenger in the event of a collision, thereby reducing the passenger's injury.

As shown in FIG. 1, when the airbag is deployed, the first vent hole is tied to the vent inlet by a tether installed inside the airbag, and the opening space thereof is closed, and the operation signal is sent from the ACU at the time of the vent operation to send the tether cutter. By releasing the tether by activating the vent hole, the pressure inside the air bag is released.

That is, after the airbag is deployed due to the collision, the vent hole, which was initially closed by the tether cutter operation, is opened, and the pressure inside the airbag is discharged, thereby deteriorating the occupant's head or neck injury due to the pressure drop.

The vent actuation signal operates only when the airbag is deployed while the passenger wears the belt, and the vent hole opened once is not closed again.

However, the existing vent structure is set only for women with 5% of passengers, so even if the collision speed is the same, for men with large physiques, the airbag pressure is continuously released quickly as the airbag is pressed. There is a problem in that there is a possibility that injuries occur such that the head of the occupant, such as a crash pad and the like to price the interior material such as a crash pad in a short time.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

The present invention has been proposed to solve such a problem, the external discharge of the pressure inside the airbag is reduced to increase the bearing capacity of the airbag to reduce the amount of head movement of the occupant to prevent the collision with the interior material, such as crash pads, and thus the collision It is an object of the present invention to provide an airbag cushion for injury reduction having a vent control means that can prevent the occurrence of safety accidents such as injuries of passengers by improving the safety of the city.

Injury reduction airbag cushion having a vent control means according to the present invention for achieving the above object is an airbag deployed toward the occupant by the gas generated by the inflator during the collision of the vehicle, and formed on both sides of the airbag A vent having a vent hole for discharging pressure into the vehicle, a vent tether hooked to a tether cutter installed inside an airbag housing to open and close the vent hole, and one side of the vent tether connected to the inside of the airbag, and the other end of the airbag It is attached to the side panel of the horizontal tether is installed in a horizontal direction.

The transverse tether may be installed on the head moving trajectory of the passenger above the airbag, and may be configured to close the vent hole or reduce the hole diameter by pulling the vent tether while being pressed by the passenger's head.

The internal pressure of the airbag is primarily discharged through the vent hole while the airbag is pressed by the occupant's head. Secondly, the vent tether is pulled out by the tension force of the transverse tether as the passenger's head collides with the transverse tether. Or the diameter may be reduced such that pressure relief is blocked or reduced.

The horizontal tether may include a base tether having one end attached to the side panel and installed in a horizontal direction, and a rod connected to an end of the base tether and connected to the vent tether.

The base tether may be formed in a rectangular shape of a predetermined area.

According to the airbag cushion for reducing injuries having a vent control means having the above-described configuration, it is possible to prevent the injuries of the occupant by improving safety in a collision by increasing the bearing capacity of the airbag by closing the open vent hole again. It becomes possible, while using the existing vent structure as it is, there is an effect that can increase the safety by introducing a simple structure.

1 is a configuration diagram showing a vent structure inside a conventional airbag,
Figure 2 is a block diagram showing a vent structure inside the airbag according to an embodiment of the present invention,
3 is a vent state diagram according to the connection of the tether according to an embodiment of the present invention,
Figure 4 is a state diagram showing a horizontal tether installed inside the airbag according to an embodiment of the present invention,
5 is a state diagram when the head of the occupant presses the horizontal tether according to an embodiment of the present invention;
Figure 6 is a state diagram showing the vent structure before and after transverse tether pressurization according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings looks at the airbag cushion for reducing injury with a vent control means according to an embodiment of the present invention.

2 is a block diagram showing a vent structure inside the airbag according to an embodiment of the present invention, the airbag cushion for reducing injury with a vent control means according to an embodiment of the present invention is generated by the inflator during the collision of the vehicle An air bag 10 deployed toward the occupant by gas, a vent 20 formed on both sides of the air bag, a vent tether 40 for opening and closing the vent 20, and the vent inside the air bag 10. One side is connected to the tether and the other side is attached to the side panel of the airbag includes a horizontal tether 50 is installed in the horizontal direction.

The vent 20 communicates with an interior space of the airbag, and a vent hole 22 is formed at an end to discharge pressure inside the airbag into the vehicle. The vent hole 22 is tied to the vent tether 40 so as not to open before the air bag is deployed, and the vent tether 40 is connected to a tether cutter 30 installed inside the air bag housing 35.

3 is a vent state diagram according to the connection of the vent tether according to an embodiment of the present invention, the vent tether is connected to both sides of the vent 20 and the tether cutter 30 before the vent operation during the airbag deployment, vent The vent hole 22 is tied by a vent tether and is in a closed state (see FIG. 3 (a)). In this state, when the operation signal is transmitted from the ACU for the vent operation, the tether cutter 30 cuts the vent tether 40, and the vent hole 22 is released while the tied portion is released while the tension of the vent tether is lost. As it opens, the pressure inside the air bag is discharged (see Figure 3 (b)).

Figure 4 is a state diagram showing a horizontal tether installed in the airbag according to an embodiment of the present invention, the horizontal tether 50 is one side is connected to the vent tether, the other side is configured to be attached to the side panel of the airbag As the horizontal tether is attached to the side panel, the horizontal tether is preferably connected to the vent tether connected to the vent formed on the opposite side of the airbag facing the side panel.

5 is a state diagram when the head of the occupant presses the transverse tether according to an embodiment of the present invention, wherein the transverse tether 50 is installed on the trajectory of the head movement of the occupant above the airbag, As the passenger's head bounces forward, the airbag is pressed. At this time, the transverse tether 50 is pressed by the passenger's head to pull the vent tether to close the vent hole or reduce the hole diameter.

This is because the horizontal tether 50 is attached to the side panel of the airbag and one side is connected to the vent tether, so that the horizontal tether 50 is pressed and the vent tether is pulled by the tensile force to vent the vent hole 22. This is the principle of closing again or reducing the diameter.

Specifically, after the airbag is deployed, the internal pressure of the airbag is partially discharged through the vent hole while the airbag is pressed by the occupant's head when the vent is operated (see FIG. 6 (a)). Tensile force is generated in the transverse tether, thereby reducing the hole diameter of the open vent hole by pulling the vent tether to minimize the pressure discharged (see Fig. 6 (b)).

Therefore, since the airbag pressure discharged through the vent hole once opened can be blocked or significantly reduced after a certain point, it is possible to prevent the occupant from hitting the interior material such as a crash pad due to the continuous decrease in the pressure inside the airbag. It can prevent the occurrence of safety accidents.

Here, the horizontal tether 50 has one end attached to the side panel and installed in the horizontal direction, the rod is connected to the end of the base tether 52 and the vent tether 40 ( 54).

At this time, the base tether is formed in a rectangular shape of a certain area to support the head of the occupant when the head of the occupant is hit, and to cover a portion of the face of the occupant in order to prevent the occurrence of bruises of the occupant Can be formed.

The airbag vent sphere for reducing the injury of the present invention can be implemented at low cost by further providing a horizontal tether 50 inside the airbag while using the existing vent structure as it is, and furthermore, at a certain time, it can block or drastically reduce the external discharge of pressure. By reducing the pressure inside the airbag, it is possible to prevent the possibility of injury to the occupant, which may be caused by one hour of pressure reduction.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

10: airbag 20: vent
22: vent hole 30: tether cutter
35; Housing 40: Vent Tether
50: horizontal tether 52: base tether
54: loading

Claims (5)

An airbag deployed toward the occupant by gas generated by the inflator in the event of a vehicle crash;
Vents formed on both sides of the air bag and having a vent hole to discharge the internal pressure into the vehicle,
A vent tether hung on a tether cutter installed inside the airbag housing to open and close the vent hole;
One side of the air bag is connected to the vent tether and the other side is attached to the side panel of the air bag and the horizontal tether is installed in the horizontal direction, characterized in that the air bag cushion having a vent control means. The method according to claim 1,
The transverse tether is installed on the head moving trajectory of the passenger above the air bag, the vent control means for closing the vent hole or reducing the hole diameter by pulling the vent tether while being pressed by the passenger's head Airbag cushion for reducing injury. The method according to claim 2,
The internal pressure of the airbag is primarily discharged through the vent hole as the airbag is pressed by the occupant's head, and the vent tether is pulled out by the tension force of the transverse tether as the passenger's head collides with the transverse tether. Or an air bag cushion for reducing injury with a vent adjusting means characterized in that the diameter is reduced to block or reduce the pressure discharge. The method according to claim 1,
The horizontal tether includes: a base tether having one end attached to the side panel and installed in a horizontal direction, and a rod connected to an end of the base tether and connected to the vent tether; Airbag Cushion. The method of claim 4,
The base tether is an injury reduction airbag cushion having a vent control means, characterized in that formed in a rectangular shape of a predetermined area.
KR1020110128805A 2011-12-05 2011-12-05 An air bag cushion for reducing injuries having a vent control means KR20130062521A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110128805A KR20130062521A (en) 2011-12-05 2011-12-05 An air bag cushion for reducing injuries having a vent control means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110128805A KR20130062521A (en) 2011-12-05 2011-12-05 An air bag cushion for reducing injuries having a vent control means

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9027962B1 (en) 2014-04-02 2015-05-12 Hyundai Mobis Co., Ltd Airbag apparatus
KR20150115500A (en) * 2014-04-04 2015-10-14 현대모비스 주식회사 Air bag apparatus
KR20150128051A (en) 2014-05-08 2015-11-18 현대모비스 주식회사 Air Bag Module
US9352721B2 (en) 2014-04-02 2016-05-31 Hyundai Mobis Co., Ltd. Airbag apparatus
US9428140B2 (en) 2014-05-23 2016-08-30 Hyundai Mobis Co., Ltd. Airbag module
CN111547004A (en) * 2020-05-23 2020-08-18 锦州锦恒汽车安全系统股份有限公司 Safety airbag device capable of adjusting internal pressure

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9027962B1 (en) 2014-04-02 2015-05-12 Hyundai Mobis Co., Ltd Airbag apparatus
US9352721B2 (en) 2014-04-02 2016-05-31 Hyundai Mobis Co., Ltd. Airbag apparatus
KR20150115500A (en) * 2014-04-04 2015-10-14 현대모비스 주식회사 Air bag apparatus
KR20150128051A (en) 2014-05-08 2015-11-18 현대모비스 주식회사 Air Bag Module
US9573555B2 (en) 2014-05-08 2017-02-21 Hyundai Mobis Co., Ltd. Air bag module
US9428140B2 (en) 2014-05-23 2016-08-30 Hyundai Mobis Co., Ltd. Airbag module
CN111547004A (en) * 2020-05-23 2020-08-18 锦州锦恒汽车安全系统股份有限公司 Safety airbag device capable of adjusting internal pressure

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