KR20120040539A - Airbag apparatus for protecting passenger seated rear seat - Google Patents

Airbag apparatus for protecting passenger seated rear seat Download PDF

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Publication number
KR20120040539A
KR20120040539A KR1020100102014A KR20100102014A KR20120040539A KR 20120040539 A KR20120040539 A KR 20120040539A KR 1020100102014 A KR1020100102014 A KR 1020100102014A KR 20100102014 A KR20100102014 A KR 20100102014A KR 20120040539 A KR20120040539 A KR 20120040539A
Authority
KR
South Korea
Prior art keywords
airbag
inflation portion
rear seat
passenger
airbag cushion
Prior art date
Application number
KR1020100102014A
Other languages
Korean (ko)
Inventor
정훈희
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 KR1020100102014A priority Critical patent/KR20120040539A/en
Publication of KR20120040539A publication Critical patent/KR20120040539A/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
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/207—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats
    • 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
    • B60R2021/0044—Chest
    • 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
    • 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
    • B60R2021/0051—Knees
    • 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
    • B60R21/207—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats
    • B60R2021/2078—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats in rear seats
    • 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
    • B60R21/233—Inflatable members characterised by their shape, construction or spatial configuration comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other
    • B60R2021/23324—Inner walls crating separate compartments, e.g. communicating with vents

Abstract

PURPOSE: An airbag device of a rear seat is provided to protect heads and chests of passengers who sit on rear seats and offer a front and knee airbags function because the lower inflation part protects knees of the passengers. CONSTITUTION: An airbag device of a rear seat comprises an airbag housing(20), an inflator, and an airbag cushion. The air bag housing is arranged in a front seat(1). The inflator is arranged in the airbag housing and generates gas. The airbag cushion is connected to the inflator. The airbag cushion is inflated when the gas is flowed into the airbag cushion, thereby protecting the passengers who sit on rear seats. The airbag cushion comprises an upper expanding part(12) and lower expanding part(14). The upper expanding part protects the heads and chests of the passengers. The lower expanding part is formed in the lower part of the upper expanding part and protects knees of the passengers.

Description

Rear seat airbag device {Airbag apparatus for protecting passenger seated rear seat}

The present invention relates to a rear seat airbag device, and more particularly, to a rear seat airbag device installed on the front seat to protect a passenger sitting on the rear seat.

In general, a vehicle is provided with an airbag device that is a safety device to protect the occupant by inflating the airbag cushion by receiving gas from the inflator in the event of a vehicle accident.

Such an airbag device is installed in each part of the vehicle as necessary, and the driver's seat airbag device mounted on the steering wheel to protect the driver sitting in the driver's seat and the glove box is mounted on the upper side of the glove box to protect the passenger sitting in the passenger's seat. A passenger airbag device and a curtain airbag device mounted along the roof rail to protect the side of the occupant have been proposed.

In the airbag apparatus, the gas generated due to the explosion of the gas generating medium included in the inflator is introduced into the airbag cushion during vehicle collision, thereby expanding and deploying the airbag cushion to protect the occupant.

On the other hand, in recent years, as well as ensuring the safety performance of the rear seat occupant, by arranging the airbag module in the rear of the front seat to protect the rear passengers.

The problem to be solved by the present invention is to provide a rear seat airbag device that protects the knees as well as the head and chest of the passenger sitting on the rear seat.

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, the rear seat airbag device according to an embodiment of the present invention, the airbag housing disposed on the front seat, an inflator disposed in the airbag housing to generate a gas, connected to the inflator and the gas flows in And an airbag cushion to expand and deploy to protect the passenger seated on the rear seat, wherein the airbag cushion includes an upper inflation portion protecting the head and chest of the passenger and a lower portion of the upper inflation portion to protect the passenger's knee. And a lower inflation portion to protect.

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

The rear seat airbag device according to the present invention is a rear seat airbag device that protects the head and chest of the passenger sitting on the rear seat, and the lower inflate protects the passenger's knee. It has the effect of implementing the function.

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

1 is a block diagram showing a rear seat airbag device according to an embodiment of the present invention,
Figure 2 is a perspective view showing an inflated airbag cushion of the rear seat airbag apparatus according to an embodiment of the present invention,
3 is a view showing a state in which the rear seat airbag device is installed on the front seat according to an embodiment of the present invention, the airbag cushion is omitted,
4 is a view showing a process of folding the airbag cushion of the rear seat airbag apparatus according to an embodiment of the present invention,
5 is a view showing a state in which the lower inflated portion of the airbag cushion of the rear seat airbag apparatus according to an embodiment of the present invention,
6 is a view showing a state inflated to the upper inflated portion of the airbag cushion of the rear seat airbag device according to an embodiment of the present invention,
7 is a view illustrating a sorting tether or an internal tether of a rear seat airbag device according to an exemplary embodiment of the present invention.

Advantages and features of the present invention, and methods for achieving them will be apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various forms. It is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

Hereinafter, a rear seat airbag device according to an embodiment of the present invention will be described with reference to the drawings.

1 is a block diagram showing a rear seat airbag device according to an embodiment of the present invention, Figure 2 is a perspective view showing an inflated airbag cushion of the rear seat airbag device according to an embodiment of the present invention, Figure 3 is an embodiment of the present invention Is a view showing a state where the rear seat airbag device is installed on the front seat, and the airbag cushion is omitted.

1 to 3, the rear seat airbag apparatus according to the embodiment of the present invention is disposed on the front seat 1 of the vehicle. Here, the front seat 1 means a seat disposed in front of the rear seat like the driver's seat or the passenger seat. Although not shown, the rear seat is disposed in the vehicle spaced rearward from the front seat 1. Rear seat airbag device according to an embodiment of the present invention is installed on the rear of the front seat (1), to protect the passenger sitting on the rear seat by expanding the airbag cushion 10 during the accident of the vehicle.

A rear seat airbag device according to an embodiment of the present invention includes an airbag housing 20, an inflator 30, a retainer 40, and an airbag cushion 10.

The airbag housing 20 is mounted on the rear side of the front seat 1. On the circumferential surface of the airbag housing 20, a mounting bracket 25 for mounting to the front seat 1 is disposed.

By fixing the mounting bracket 25 to the front seat 1 through the fastening member, the airbag housing 20 is installed in the front seat 1.

The airbag housing 20 is formed with an inflator insertion hole 22 into which one side of the inflator 30 is inserted, and an inflator insertion hole 42 into which the other side of the inflator 30 is inserted into the retainer 40.

The inflator 30 is inserted into each of the inflator insertion holes 22 and 42, and the airbag housing 20, the inflator 30, the retainer 40, and the airbag cushion 10 are coupled through the fastening member.

The inflator 30 generates gas in the event of an accident of the vehicle.

The airbag cushion 10 is connected to the inflator 30 and expands and expands when the gas is introduced.

The airbag housing 20 is provided with a storage space 24 in which the airbag cushion 10 is folded and accommodated. The airbag cushion 10 is folded and stored in the storage space 24, and then expands and expands when the gas generated in the inflator 30 flows in, thereby protecting the passenger sitting on the rear seat.

The airbag cushion 10 has an upper inflation portion 12 that protects the head and chest of the passenger sitting on the rear seat, and a lower inflation portion formed below the upper inflation portion 12 to protect the knee of the passenger. (14).

The rear side of the front seat 1 is formed to be inclined to protrude toward the front of the vehicle from the top to the bottom. The lower inflation portion 14 is disposed along the inclined surface of the front seat 1 when inflated to protect the knees of the passenger sitting on the rear seat. Since the conventional knee airbag device that protects the knee of the passenger sitting on the front seat 1 is mounted inside the inclined instrument panel and disposed along the inclined surface of the instrument panel when the airbag cushion is inflated, the lower inflation portion 14 Is disposed along the inclined surface of the front seat 1, it can perform the function of the conventional knee airbag device.

The lower inflation portion 14 is connected to the inflator 30.

The retainer 40 is disposed between the inflator 30 and the lower inflation portion 14 to connect the inflator 30 and the lower inflation portion 14.

Therefore, when the gas flows from the inflator 30 into the airbag cushion 10, the airbag cushion 10 has the lower inflation portion 14 inflated before the upper inflation portion 12 and then the upper inflation portion 12. ) Is expanded.

In the upper expansion part 12, a vent hole 15 through which the gas is discharged is formed. That is, the airbag cushion 10 discharges gas through the vent hole 15 so that the initial deployment pressure of the airbag cushion 10 can be maintained at an appropriate pressure, so that the passenger sitting on the rear seat may be injured. prevent. Although the vent hole 15 is illustrated in FIG. 2 as being formed on the left side of the upper inflation portion 12, the vent hole 15 may also be formed on the right side of the invisible airbag cushion 10.

The lower inflation portion 14 has a smaller volume than the upper inflation portion 12 so that the airbag cushion 10 can be inflated at an appropriate pressure to the upper inflation portion 12 after the lower inflation portion 14 is first inflated. It is formed to have.

When the airbag cushion 10 is inflated, the lower inflation portion 14 protrudes smaller toward the passenger sitting on the rear seat than the upper inflation portion 12.

4 is a view showing a process of folding the airbag cushion of the rear seat airbag apparatus according to an embodiment of the present invention.

Referring to FIG. 4, first, when the portion to be coupled to the airbag housing 20 is placed downward, the state is as shown in (a). In this state, both sides of the airbag cushion 10 are tucked in so that their sizes correspond to both sides of the airbag housing 20, so that the state of the airbag cushion 10 is equal to (b). Here, when both sides of the airbag cushion 10 are tucked in, the airbag cushion 10 may be tucked in smaller than both sides of the airbag housing 20 so that the airbag cushion 10 may be stored in the airbag housing 20. Is made of a flexible material, it may be slightly larger in size than both sides of the airbag housing 20.

Thereafter, the upper side of the upper inflation portion 12 is folded up toward the lower inflation portion 14 to make a state as shown in (c). In this state, the upper inflation portion 12 is superimposed on the lower inflation portion 14 such that a part of the lower inflation portion 14 is visible.

In this state, the size of the airbag cushion 10 corresponds to the size of the airbag housing 20 by rolling downward from the lower inflation portion 14 so as to be in the state of (d).

Thereafter, the airbag cushion 10 is sealed with the cushion cover 50 so that the folded airbag cushion 10 is not loosened, thereby completing the cushion assembly 60 as illustrated in (e). In this manner, the completed cushion assembly 60 can be easily stored in the airbag housing 20.

5 is a view showing a state in which the lower inflated portion of the airbag cushion of the rear seat airbag apparatus according to an embodiment of the present invention, Figure 6 is inflated to the upper inflated portion of the airbag cushion of the rear seat airbag device according to an embodiment of the present invention 7 is a view illustrating a state tether or internal tether of the rear seat airbag device according to an embodiment of the present invention.

5 to 7, in the rear seat airbag apparatus according to the exemplary embodiment of the present invention, the gas generated from the inflator 30 is first introduced into the lower inflation portion 14, and accordingly, the lower inflation portion 14 is provided. Is first expanded.

Inside the airbag cushion 10, a division tether 11 that divides the airbag cushion 10 into an upper inflation portion 12 and a lower inflation portion 14 is disposed.

In addition, the inner tether 16 is disposed inside the upper inflation portion 12 to hold the shape of the upper inflation portion 12. Here, the inner tether 16 may include an upper tether 17 for holding a portion corresponding to the head 3 of the passenger 2 of the upper inflated portion 12, and the passenger (among the upper inflated portion 12). And a lower tether 18 for holding a portion corresponding to the chest 4 of 2).

The upper inflation portion 12 is constrained from being inflated and projected by the upper tether 17 on the surface facing the passenger 2, the portion in contact with the head 3 of the passenger 2 is embedded, The head part 3 of (2) can be prevented from being injured by the excessive amount of protrusion of the upper inflation part 12.

In addition, the upper inflation portion 12 is constrained to be inflated and projected by the lower tether 18, the surface facing the passenger (2), so that the portion in contact with the chest (4) of the passenger (2) is embedded The chest 4 of the passenger 2 can be prevented from being injured by an excessive amount of protrusion of the upper inflation portion 12.

The opening tethers 11a and 16a are formed in the division tether 11 and the inner tether 16 as shown in FIG. 7. Although the opening holes 11a and 16a are illustrated as being elliptical in FIG. 7, they may be formed in various shapes such as squares or triangles.

Gas introduced into the lower expansion part 14 is introduced into the upper expansion part 12 through the opening hole 11a of the separator tether 11. In addition, the upper inflation portion 12 allows gas to flow through the opening hole 16a of the inner tether 16 so that the upper inflation portion 12 can be fully inflated.

As described above, the rear seat airbag device according to the present invention, the lower inflation portion 14 of the airbag cushion 10 is inflated to protect the knees 5 of the passengers 2 sitting on the rear seat, and the upper inflation portion ( Since 12 is inflated to protect the head 3 and chest 4 of the passenger 2, the head 3 and chest of the passenger 2 sitting on the rear seat with one rear seat airbag device. Not only the part 4 but also the knee 5 of the passenger 2 can be protected.

Those skilled in the art will appreciate that the present invention can be embodied in other specific forms without changing the technical spirit or essential features of the present invention. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. The scope of the present invention is indicated by the scope of the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and the equivalent concept are included in the scope of the present invention. Should be interpreted.

1: front seat 10: airbag cushion
11: division tether 12: upper inflation
14: lower inflated portion 15: vent hole
16: Internal tether 17: Upper tether
18: lower tether 20: airbag housing
30: Inflator 40: Retainer

Claims (10)

An airbag housing disposed in the front seat;
An inflator disposed in the airbag housing to generate a gas; And
And an airbag cushion connected to the inflator and protecting the passenger sitting on the rear seat by expanding and expanding when the gas is introduced.
The airbag cushion includes an upper inflation portion for protecting the head and chest of the passenger, and a lower inflation portion formed under the upper inflation portion to protect the knee of the passenger. The method according to claim 1,
And the lower inflation portion is connected to the inflator to expand before the upper inflation portion. The method according to claim 1,
It is disposed inside the airbag cushion, the separator for separating the airbag cushion into the upper inflation portion and the lower inflation portion; rear seat airbag apparatus further comprising. The method according to claim 1,
The rear seat airbag device further comprises; an inner tether disposed inside the upper inflating part to hold the shape of the upper inflating part. The method of claim 4,
The internal tether,
An upper tether for holding a portion of the upper inflation portion corresponding to the head of the passenger;
Rear seat airbag device including a lower tether for holding a portion corresponding to the chest of the passenger of the upper inflation portion. The method according to claim 1,
And a retainer connecting the inflator and the lower inflation portion. The method according to claim 1,
The rear seat airbag device is formed with a vent hole through which the gas is discharged. The method according to claim 1,
The rear seat airbag device is disposed along the inclined surface of the front seat when the lower inflation portion is inflated. The method according to claim 1,
And the lower inflation portion has a smaller volume than the upper inflation portion. The method according to claim 1,
When the airbag cushion is inflated, the lower inflation portion protrudes smaller toward the passenger relative to the upper inflation portion.
KR1020100102014A 2010-10-19 2010-10-19 Airbag apparatus for protecting passenger seated rear seat KR20120040539A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100102014A KR20120040539A (en) 2010-10-19 2010-10-19 Airbag apparatus for protecting passenger seated rear seat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100102014A KR20120040539A (en) 2010-10-19 2010-10-19 Airbag apparatus for protecting passenger seated rear seat

Publications (1)

Publication Number Publication Date
KR20120040539A true KR20120040539A (en) 2012-04-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020100102014A KR20120040539A (en) 2010-10-19 2010-10-19 Airbag apparatus for protecting passenger seated rear seat

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KR (1) KR20120040539A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014122173A1 (en) 2013-02-07 2014-08-14 Expliseat Vehicle seat comprising an area that is deformable in the event of an impact
CN104108364A (en) * 2013-04-18 2014-10-22 重庆长安汽车股份有限公司 Safety airbag system for protecting passenger on back row of car under condition of head-on collision
US9211232B2 (en) 2013-01-23 2015-12-15 Infopia Co., Ltd. Cartridge for medication dispensing apparatus having auto locking function
US9623826B2 (en) 2015-02-26 2017-04-18 Ford Global Technologies, Llc Vehicle impact energy absorber

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9211232B2 (en) 2013-01-23 2015-12-15 Infopia Co., Ltd. Cartridge for medication dispensing apparatus having auto locking function
WO2014122173A1 (en) 2013-02-07 2014-08-14 Expliseat Vehicle seat comprising an area that is deformable in the event of an impact
US9764843B2 (en) 2013-02-07 2017-09-19 Expliseat Vehicle seat comprising an area that is deformable in the event of an impact
CN104108364A (en) * 2013-04-18 2014-10-22 重庆长安汽车股份有限公司 Safety airbag system for protecting passenger on back row of car under condition of head-on collision
US9623826B2 (en) 2015-02-26 2017-04-18 Ford Global Technologies, Llc Vehicle impact energy absorber

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