WO2022225264A1 - Vehicle airbag device - Google Patents

Vehicle airbag device Download PDF

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Publication number
WO2022225264A1
WO2022225264A1 PCT/KR2022/005474 KR2022005474W WO2022225264A1 WO 2022225264 A1 WO2022225264 A1 WO 2022225264A1 KR 2022005474 W KR2022005474 W KR 2022005474W WO 2022225264 A1 WO2022225264 A1 WO 2022225264A1
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WO
WIPO (PCT)
Prior art keywords
airbag cushion
occupant
airbag
vehicle
cushions
Prior art date
Application number
PCT/KR2022/005474
Other languages
French (fr)
Korean (ko)
Inventor
권태익
유완동
정용현
김치호
변종기
이승진
정대창
Original Assignee
아우토리브 디벨롭먼트 아베
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 아우토리브 디벨롭먼트 아베 filed Critical 아우토리브 디벨롭먼트 아베
Priority to CN202280039114.XA priority Critical patent/CN117412885A/en
Publication of WO2022225264A1 publication Critical patent/WO2022225264A1/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
    • B60R21/233—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/0244—Non-manual adjustments, e.g. with electrical operation with logic circuits
    • B60N2/0268—Non-manual adjustments, e.g. with electrical operation with logic circuits using sensors or detectors for adapting the seat or seat part, e.g. to the position of an occupant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • 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
    • 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
    • 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
    • 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
    • B60R21/23138—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection
    • 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
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R21/264—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic
    • 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
    • B60R2021/0058—Shoulders
    • 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
    • B60R2021/2074—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 head rests
    • 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
    • B60R21/23138—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection
    • B60R2021/23146—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection seat mounted

Definitions

  • the present invention relates to an airbag device for an automobile, and more particularly, to an automobile airbag device for safely protecting an occupant's upper body by restraining the upper body centering on the shoulder when a collision occurs.
  • an automobile airbag device is a safety device for protecting occupants by rapidly inflating the airbag by injecting gas into the airbag according to a signal of an impact sensor during a vehicle collision.
  • Such an airbag device is installed on a steering wheel, a dashboard, a seat, a side wall, etc. provided in a vehicle, and is inflated toward the front or side of the occupant when the vehicle collides to protect the occupant.
  • the vehicle may be provided with a front airbag deployed in front of the driver's seat and front passenger's seat, a curtain airbag and side airbag deployed from the side of the passenger to protect the passenger, and a knee airbag to protect the passenger's knee.
  • the occupants of the autonomous vehicle do not drive themselves, they can have a meeting by swiveling the seat left and right while moving to the destination, or have a rest by reclining the backrest.
  • the direction and posture of the occupant may be variously changed.
  • an object or damaged part inside the vehicle may fly and cause injury to the occupant.
  • Patent Document 1 Republic of Korea Patent Registration No. 10-1655569 (Announced on September 8, 2016)
  • Patent Document 2 Korean Patent Registration No. 10-1611087 (published on April 11, 2016)
  • Another object of the present invention is to provide an airbag device for a vehicle capable of inflating and deploying an airbag cushion by avoiding an area where a side airbag is deployed according to an occupant's posture, and additionally providing a protective function to the occupant's front.
  • the airbag device for a vehicle generates gas by an airbag cushion that restrains the upper body as a whole around both shoulders of an occupant during a collision of a vehicle and an impact detection signal during a collision of a vehicle. and an inflator for supplying the airbag cushion to the airbag cushion, wherein the airbag cushion is inflated and deployed from the rear side to the front side of the occupant to constrain both the front side of the upper body and the head of the occupant.
  • the effect of safely protecting the occupant is obtained by inflating and deploying the airbag cushion on the front and both sides of the occupant when the vehicle collides.
  • an effect of preventing overlap with the side airbag cushion by providing overlapping prevention regions on both sides of the airbag cushion is obtained.
  • the length of the limiting means is adjusted so that the inflated and deployed airbag cushion is more closely attached to the occupant's upper body to restrain the occupant. is obtained
  • the present invention it is possible to more safely protect the occupant by effectively limiting the deployment shape of the airbag cushion according to the rearward rotation angle of the occupant.
  • FIG. 1 is a front view of an airbag device for a vehicle according to a preferred embodiment of the present invention
  • Fig. 2 is a side view of the airbag device of the vehicle shown in Fig. 1;
  • FIG. 3 is an exploded view of the airbag cushion shown in FIG. 1;
  • FIG. 4 is an exemplary view of the backrest frame of the seat on which the airbag cushion shown in FIG. 3 is installed;
  • 5 and 6 are a front view and a side view showing a state in which the airbag cushion is deployed, respectively;
  • 7 and 8 are respectively a front view and a side view showing a state in which the length of the limiting means is adjusted by the adjusting module.
  • FIG. 1 is a front view of an airbag device for a vehicle according to a preferred embodiment of the present invention
  • FIG. 2 is a side view of the airbag device for a vehicle shown in FIG. 1
  • FIG. 3 is an exploded view of the airbag cushion shown in FIG. 1
  • FIG. 4 is an exemplary view of a backrest frame of the seat on which the airbag cushion shown in FIG. 3 is installed.
  • the configuration of the airbag device installed in the driver's seat of a general vehicle will be described, the direction toward the front of the vehicle centered on the driver's seat is referred to as 'front (F)', and the direction toward the rear of the vehicle is referred to as 'rear (B)'. do.
  • terms indicating directions such as 'left (L)', 'right (R)', 'up (U)' and 'down (D)' are based on the front (F) and rear (B) is defined as indicating each direction.
  • reference numeral I shown in the drawings denotes an inside direction of the vehicle in the width direction of the vehicle
  • reference numeral O denotes an exterior direction of the vehicle in the width direction of the vehicle.
  • the front and rear (F, B) directions of the vehicle may be expressed in a horizontal direction
  • the up and down (U, D) directions of the vehicle may be expressed in a vertical direction.
  • the airbag device 10 for a vehicle is configured so that the upper body is entirely wrapped around the shoulders of both sides of the occupant and restrained from the front side of the occupant when the vehicle collides. and an inflator 21 (refer to FIG. 3 ) that generates gas by an impact detection signal upon collision of an airbag cushion 20 and expands and deploys toward the airbag cushion 20 and supplies it to the airbag cushion 20 .
  • an inflator 21 (refer to FIG. 3 ) that generates gas by an impact detection signal upon collision of an airbag cushion 20 and expands and deploys toward the airbag cushion 20 and supplies it to the airbag cushion 20 .
  • the airbag device 10 for a vehicle may further include a pair of side airbag cushions (hereinafter abbreviated as 'side cushions') 22 that are respectively inflated and deployed on both sides of the occupant.
  • 'side cushions' side airbag cushions
  • the airbag cushion 20 expands and deploys from the rear side of the occupant to the front side, thereby restraining both sides of the occupant's upper body front and the head, thereby protecting the occupant safely.
  • the airbag cushion 20 functions to restrain and protect the front and both sides of the occupant's upper body together with the pair of side cushions 22 that are inflated and deployed on both sides of the occupant.
  • the airbag cushion 20 may be formed in an approximately ' ⁇ ' shape or a ' ⁇ ' shape when viewed from the top, as shown in FIG. 3 .
  • the airbag cushion 20 surrounds both shoulders around the head of the occupant, and expands and deploys in a shawl shape from the front of the occupant's chest to the front of the abdomen and pelvis.
  • the airbag cushion 20 includes first and second cushions 30 and 40 that are inflated and deployed from both shoulders of the passenger to the front of the pelvis, and rear ends of the first and second cushions 30 and 40 and a connecting portion 50 for connecting and restraining the head portion of the occupant.
  • connection part 50 is convex upwardly to form an approximately ' ⁇ ' shape, and when the airbag cushion 20 is inflated and deployed, a headrest 13 connected to the upper end of the backrest 12 . may be disposed on the rear side of the
  • the rigidity of the airbag cushion can be increased when the airbag cushion is inflated and deployed by using the rigidity of the headrest.
  • connection part 50 is not limited thereto, and may be variously changed, such as a 'one' shape or a ' ⁇ ' shape.
  • connection part 50 may be formed to extend downward along the rear surface of the backrest 50 so as to mitigate the impact in the event of a collision with an occupant riding on the rear side of the backrest 12 .
  • the first and second cushions 30 and 40 may be formed to extend forward from both ends of the connection part 50 , respectively.
  • the first and second cushions 30 and 40 and the connecting portion 50 may be formed in a bag shape by bonding the edges of the inner panel in contact with the front of the passenger and the outer panel disposed on the opposite side of the inner panel, respectively, using a sewing method or the like. have.
  • the first and second cushions 30 and 40 may each have an upper end and a lower end having a wider width than the central portion so as to safely protect the pelvic region from the shoulder region of the occupant.
  • first and second anti-overlapping regions 33 and 43 may be provided on the outside of the approximately central portion of the first and second cushions 30 and 40. .
  • the first and second anti-overlapping regions 33 and 43 may be provided as non-inflatable regions that are not inflated when the airbag cushion 20 is inflated and deployed so that the inflatable thickness does not increase even if it overlaps with the side cushion 20, respectively. have.
  • an extension portion 34 may be formed to be connected to the lower end of the second cushion 40.
  • the extension part 34 may be attached to the lower end of the second cushion 40 using a Velcro fastener or an adhesive tape, or may be connected to the lower end of the second cushion 40 in various ways such as a sewing method.
  • the airbag cushion 20 may be installed at the upper end of the backrest frame 14 provided inside the backrest 12 of the seat 11 .
  • a plurality of fixing parts 23 fixed to the backrest frame 14 may protrude from the airbag cushion 20 .
  • the fixing part 23 may be formed at an upper left end of the first cushion 30 , a right upper end of the second cushion 40 , and a rear end of the connecting part 50 .
  • an introduction part 51 into which gas is introduced from the inflator 21 may be formed at the rear end of the connection part 50 , and a pair of fixing parts 23 may be formed on both sides of the introduction part 51 , respectively.
  • Each fixing part 23 may be fixed by fastening bolts or rivets to the coupling positions P set on both sides and the central part of the upper frame of the backrest frame 14 , respectively.
  • the fixing part 23 may include a coupling groove in which the locking protrusion formed on the backrest frame 14 is coupled to a hook or the like, or a locking protrusion or a hook coupled to the coupling groove formed in the backrest frame 14 .
  • the limiting means 60 is formed in a substantially belt shape, and deployed so that the first and second cushions 30 and 40 and the connecting portion 50 of the inflated and deployed airbag cushion 10 are in close contact with the occupant and effectively restrain the occupant. shape can be defined.
  • the limiting means 60 may be provided as a band-shaped webbing having a preset width. Both ends of the limiting means 60 may be connected to the control module 70 .
  • the adjustment module 70 functions to adjust the length of the limiting means 60 that winds the airbag cushion 20 .
  • the control module 70 may be provided as an actuator that adjusts the length of the limiting means in various ways, such as a motor driven by receiving power or a retractor applied to a seat belt.
  • a plurality of fixing members 24 may be provided in the airbag cushion 20 to limit the position to be restrained by using the limiting means 60 .
  • the fixing member 24 may be manufactured using the same or similar fabric material as the airbag cushion 20 .
  • the fixing member 24 may be provided in the first and second cushions 30 and 40 and the connecting portion 50 of the airbag cushion 20 , respectively.
  • the fixing member 24 is spaced apart from each other in the central portion of the first and second cushions 30 and 40 and the first and second overlapping prevention regions 33 and 43 or the connecting portion 50 to be provided in plurality.
  • the position of the limiting means can be limited so that the limiting means is in close contact with the occupant by installing a plurality of fixing members on the airbag cushion.
  • the occupant can be more safely protected by restricting the upper body of the occupant by limiting the deployment shape of the airbag cushion using the limiting means.
  • the adjustment module 70 may be driven according to a detection signal of a detection sensor (not shown) that detects the rotation angle of the backrest 12 .
  • the detection sensor may output by changing the voltage value or current value of the detection signal according to the angle at which the backrest 12 is rotated backward.
  • the adjustment module 70 may be driven to reduce the length of the limiting means 60 only when the rotation angle corresponding to the voltage value or the current value of the detection signal is a preset angle, for example, 40° or more.
  • the length of the limiting means is adjusted and the inflatable and deployed airbag cushion is brought into close contact with the occupant's upper body to restrain the occupant.
  • the present invention can effectively limit the deployment shape of the airbag cushion to further safely protect the occupant.
  • FIGS. 5 and 6 are front and side views, respectively, showing a state in which the airbag cushion is deployed
  • FIGS. 7 and 8 are front and side views, respectively, showing a state in which the length of the limiting means is adjusted by the adjusting module.
  • the operator installs the airbag cushion 20 in a folded state inside the backrest 120 by folding or rolling it.
  • each fixing part 23 provided in the airbag cushion 20 is respectively coupled to a preset installation position on the upper frame of the backrest frame 14 .
  • a band-shaped limiting means 60 is installed on the plurality of fixing members 24 provided in the airbag cushion 20 , and both ends of the limiting means 60 are connected to the control module 70 .
  • the airbag device 10 installed in the vehicle is supplied with gas from the inflator 21 through the introduction unit 51 when the vehicle crashes and is inflated and deployed.
  • connection part 50 when gas is supplied to the connection part 50 through the introduction part 51 , the connection part 50 expands and unfolds to the outside while cutting the cut line formed on the backrest 12 cover, and is connected to both front ends of the connection part 50 .
  • the gas is delivered to the first and second cushions 30 and 40 .
  • first and second cushions 50 and 60 are expanded forward beyond the headrest 13 coupled to the top of the backrest 12 and the occupant's head, as shown in FIGS. 5 and 6, respectively, It is deployed downward along the front of the occupant's upper body.
  • first and second cushions 30 and 40 may be expanded and deployed from the neck region of the occupant to the chest, abdomen, and pelvis, respectively, to constrain the occupant's upper body as a whole.
  • the detection sensor installed on the backrest 12 generates a detection signal for detecting the rotation angle of the backrest (12).
  • the adjustment module 70 adjusts the length of the limiting means 60 to reduce the length of the limiting means 60 when the rotation angle of the backrest 12 corresponding to the sensing signal is greater than or equal to a preset angle. .
  • the limiting means 60 has a deployed shape so that the first and second cushions 30 and 40 and the connection part 50 of the inflated and deployed airbag cushion 10 are in close contact with the occupant. to limit
  • the horizontal width w1 and the front-rear width w2 of the airbag cushion 20 shown in FIGS. 7 and 8 are shown in FIGS. 5 and 6 , respectively. It decreases compared to the horizontal width (W1) and front-rear width (W2) (w1 ⁇ W1, w2 ⁇ W2)
  • the length of the limiting means is adjusted and the inflatable and deployed airbag cushion is brought into close contact with the occupant's upper body to restrain the occupant.
  • the present invention can effectively limit the deployment shape of the airbag cushion to further safely protect the occupant.
  • the present invention is applied to an airbag device technology for a vehicle that can safely protect an occupant by inflating and deploying an airbag cushion on the front and both sides of the occupant during a collision of the vehicle.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Air Bags (AREA)

Abstract

The present invention relates to a vehicle airbag device, comprising: an airbag cushion which restrains the whole of the upper body centering on both shoulders of a passenger at the time of collision of a vehicle; and an inflator which generates gas according to an impact detection signal and supplies the gas to the airbag cushion at the time of collision of a vehicle, wherein the airbag cushion expands and spreads from the rear side of the passenger toward the front to restrain the front of the upper body and both sides of the head of the passenger, so that at the time of collision of a vehicle, the airbag cushion expands and spreads to the front and both sides of the passenger, thereby safely protecting the passenger.

Description

자동차의 에어백 장치car airbag device
본 발명은 자동차의 에어백 장치에 관한 것으로, 더욱 상세하게는 자동차의 충돌 발생시 탑승자의 어깨를 중심으로 상체를 구속해서 안전하게 보호하는 자동차의 에어백 장치에 관한 것이다. BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an airbag device for an automobile, and more particularly, to an automobile airbag device for safely protecting an occupant's upper body by restraining the upper body centering on the shoulder when a collision occurs.
일반적으로, 자동차 에어백 장치는 자동차 충돌 시 충격 감지 센서의 신호에 따라 에어백에 가스를 주입하여 급속히 에어백을 팽창시킴으로써 탑승자를 보호하는 안전장치이다. BACKGROUND ART In general, an automobile airbag device is a safety device for protecting occupants by rapidly inflating the airbag by injecting gas into the airbag according to a signal of an impact sensor during a vehicle collision.
이러한 에어백 장치는 자동차에 마련되는 스티어링 휠이나 데쉬보드, 시트, 측벽 등에 설치되고, 자동차의 충돌시 탑승자의 전면이나 측면을 향해 팽창되어 탑승자를 보호한다. Such an airbag device is installed on a steering wheel, a dashboard, a seat, a side wall, etc. provided in a vehicle, and is inflated toward the front or side of the occupant when the vehicle collides to protect the occupant.
즉, 자동차에는 운전석 및 동승석 전방에서 전개되는 정면에어백, 승객의 측방에서 전개되어 승객을 보호하는 커튼에어백 및 사이드에어백, 승객의 무릎을 보호하기 위한 무릎에어백 등이 마련될 수 있다.That is, the vehicle may be provided with a front airbag deployed in front of the driver's seat and front passenger's seat, a curtain airbag and side airbag deployed from the side of the passenger to protect the passenger, and a knee airbag to protect the passenger's knee.
한편, 최근에는 운전자가 차량을 운전하지 않아도 스스로 움직이는 자율주행 자동차가 개발되고 있다. Meanwhile, in recent years, autonomous vehicles that move by themselves even when the driver does not drive the vehicle are being developed.
자율주행 자동차에 탑승한 탑승자는 직접 운전을 하지 않음에 따라, 목적지까지 이동하는 동안 시트를 좌우 방향으로 회전(swivel)시켜 회의를 하거나, 등받이를 후방으로 회전(recline)시켜 휴식을 취할 수 있다. Since the occupants of the autonomous vehicle do not drive themselves, they can have a meeting by swiveling the seat left and right while moving to the destination, or have a rest by reclining the backrest.
이와 같이, 자율주행 자동차에서는 시트와 등받이가 전후 및 좌후 방향으로 자유롭게 회전 가능함에 따라, 탑승자의 방향 및 자세가 다양하게 변경될 수 있다.As described above, in the autonomous vehicle, as the seat and the backrest can freely rotate in the front and rear and left and rear directions, the direction and posture of the occupant may be variously changed.
그리고 자동차의 충돌시 차량 내부에 비치된 물건이나 파손된 부품이 비행하면서 탑승자의 부상을 유발하기도 한다. In addition, when a vehicle collides, an object or damaged part inside the vehicle may fly and cause injury to the occupant.
따라서 자동차의 충돌시 탑승자의 방향 및 자세에 따라 탑승자를 안전하게 보호할 수 있는 에어백 기술이 요구되고 있다.Accordingly, there is a need for an airbag technology capable of safely protecting a occupant according to the direction and posture of the occupant during a vehicle collision.
(특허문헌 1) 대한민국 특허 등록번호 제10-1655569호(2016년 9월 8일 공고)(Patent Document 1) Republic of Korea Patent Registration No. 10-1655569 (Announced on September 8, 2016)
(특허문헌 2) 대한민국 특허 등록번호 제10-1611087호(2016년 4월 11일 공고)(Patent Document 2) Korean Patent Registration No. 10-1611087 (published on April 11, 2016)
본 발명의 목적은 상기한 바와 같은 문제점을 해결하기 위한 것으로, 자동차의 충돌시 탑승자의 정면과 양측면에 에어백을 팽창 전개시켜 탑승자를 안전하게 보호할 수 있는 자동차의 에어백 장치를 제공하는 것이다. SUMMARY OF THE INVENTION It is an object of the present invention to provide an airbag device for a vehicle capable of safely protecting an occupant by inflating and deploying the airbag on the front and both sides of the occupant during a collision of the vehicle.
본 발명의 다른 목적은 탑승자의 자세에 따라 에어백 쿠션을 사이드 에어백이 전개되는 영역을 회피해서 팽창 전개시키고, 탑승자의 정면을 보호 기능을 추가적으로 제공할 수 있는 자동차의 에어백 장치를 제공하는 것이다. Another object of the present invention is to provide an airbag device for a vehicle capable of inflating and deploying an airbag cushion by avoiding an area where a side airbag is deployed according to an occupant's posture, and additionally providing a protective function to the occupant's front.
상기한 바와 같은 목적을 달성하기 위하여, 본 발명에 따른 자동차의 에어백 장치는 자동차의 충돌시 탑승자의 양측 어깨를 중심으로 상체를 전체적으로 구속하는 에어백 쿠션 및 자동차의 충돌시 충격 감지신호에 의해 가스를 발생시켜 상기 에어백 쿠션에 공급하는 인플레이터를 포함하고, 상기 에어백 쿠션은 탑승자의 후측에서 전면을 향해 팽창 전개되어 탑승자의 상체 전면과 머리 부분 양측을 구속하는 것을 특징으로 한다.In order to achieve the above object, the airbag device for a vehicle according to the present invention generates gas by an airbag cushion that restrains the upper body as a whole around both shoulders of an occupant during a collision of a vehicle and an impact detection signal during a collision of a vehicle. and an inflator for supplying the airbag cushion to the airbag cushion, wherein the airbag cushion is inflated and deployed from the rear side to the front side of the occupant to constrain both the front side of the upper body and the head of the occupant.
상술한 바와 같이, 본 발명에 따른 자동차의 에어백 장치에 의하면, 자동차의 충돌시 탑승자의 정면과 양측면에 에어백 쿠션을 팽창 전개시켜 탑승자를 안전하게 보호할 수 있다는 효과가 얻어진다. As described above, according to the airbag device for a vehicle according to the present invention, the effect of safely protecting the occupant is obtained by inflating and deploying the airbag cushion on the front and both sides of the occupant when the vehicle collides.
그리고 본 발명에 의하면, 에어백 쿠션의 양측에 중첩방지영역을 마련해서 사이드 에어백 쿠션과의 중첩을 방지할 수 있다는 효과가 얻어진다. Further, according to the present invention, an effect of preventing overlap with the side airbag cushion by providing overlapping prevention regions on both sides of the airbag cushion is obtained.
또한, 본 발명에 의하면, 탑승자가 등받이를 후방으로 회전시켜 등받이에 기댄 자세인 경우, 한정수단의 길이를 조절해서 팽창 전개되는 에어백 쿠션을 탑승자의 상체에 더욱 밀착시켜 탑승자를 구속할 수 있다는 효과가 얻어진다. In addition, according to the present invention, when the occupant rotates the backrest to the rear and is leaning on the backrest, the length of the limiting means is adjusted so that the inflated and deployed airbag cushion is more closely attached to the occupant's upper body to restrain the occupant. is obtained
이에 따라, 본 발명에 의하면, 탑승자의 후방 회전 각도에 따라 에어백 쿠션의 전개 형상을 효과적으로 제한해서 탑승자를 더욱 안전하게 보호할 수 있다는 효과가 얻어진다.Accordingly, according to the present invention, it is possible to more safely protect the occupant by effectively limiting the deployment shape of the airbag cushion according to the rearward rotation angle of the occupant.
도 1은 본 발명의 바람직한 실시 예에 따른 자동차의 에어백 장치의 정면도,1 is a front view of an airbag device for a vehicle according to a preferred embodiment of the present invention;
도 2는 도 1에 도시된 자동차의 에어백 장치의 측면도, Fig. 2 is a side view of the airbag device of the vehicle shown in Fig. 1;
도 3은 도 1에 도시된 에어백 쿠션의 전개도, 3 is an exploded view of the airbag cushion shown in FIG. 1;
도 4는 도 3에 도시된 에어백 쿠션이 설치되는 시트의 등받이 프레임의 예시도, 4 is an exemplary view of the backrest frame of the seat on which the airbag cushion shown in FIG. 3 is installed;
도 5 및 도 6은 각각 에어백 쿠션이 전개된 상태를 보인 정면도와 측면도,5 and 6 are a front view and a side view showing a state in which the airbag cushion is deployed, respectively;
도 7 및 도 8은 각각 조절모듈에 의해 한정수단의 길이가 조절된 상태를 보인 정면도와 측면도. 7 and 8 are respectively a front view and a side view showing a state in which the length of the limiting means is adjusted by the adjusting module.
이하 본 발명의 바람직한 실시 예에 따른 자동차의 에어백 장치를 첨부된 도면을 참조하여 상세하게 설명한다. Hereinafter, an airbag device for a vehicle according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 발명의 바람직한 실시 예에 따른 자동차의 에어백 장치의 정면도이고, 도 2는 도 1에 도시된 자동차의 에어백 장치의 측면도이다. 그리고 도 3은 도 1에 도시된 에어백 쿠션의 전개도이고, 도 4는 도 3에 도시된 에어백 쿠션이 설치되는 시트의 등받이 프레임의 예시도이다. 1 is a front view of an airbag device for a vehicle according to a preferred embodiment of the present invention, and FIG. 2 is a side view of the airbag device for a vehicle shown in FIG. 1 . And FIG. 3 is an exploded view of the airbag cushion shown in FIG. 1 , and FIG. 4 is an exemplary view of a backrest frame of the seat on which the airbag cushion shown in FIG. 3 is installed.
이하에서는 일반적인 차량의 운전석에 설치된 에어백 장치의 구성을 설명하며, 운전석을 중심으로 자동차의 전면을 향하는 방향을 '전방(F)'이라 하고, 자동차의 후면을 향하는 방향을 '후방(B)'이라 한다. 이와 함께, '좌측(L)', '우측(R)', '상방(U)' 및 '하방(D)'과 같은 방향을 지시하는 용어들은 상기 전방(F) 및 후방(B)을 기준으로 각각의 방향을 지시하는 것으로 정의한다. 그리고 도면에 도시된 참조부호 I는 자동차의 폭 방향에서 자동차의 내부 방향을 나타내고, 참조부호 O는 자동차의 폭 방향에서 자동차의 외부 방향을 나타낸다. Hereinafter, the configuration of the airbag device installed in the driver's seat of a general vehicle will be described, the direction toward the front of the vehicle centered on the driver's seat is referred to as 'front (F)', and the direction toward the rear of the vehicle is referred to as 'rear (B)'. do. In addition, terms indicating directions such as 'left (L)', 'right (R)', 'up (U)' and 'down (D)' are based on the front (F) and rear (B) is defined as indicating each direction. In addition, reference numeral I shown in the drawings denotes an inside direction of the vehicle in the width direction of the vehicle, and reference numeral O denotes an exterior direction of the vehicle in the width direction of the vehicle.
따라서 자동차의 전, 후(F, B) 방향은 가로 방향으로 표현될 수 있으며, 자동차의 상, 하(U, D) 방향은 세로 방향으로 표현될 수 있다.Accordingly, the front and rear (F, B) directions of the vehicle may be expressed in a horizontal direction, and the up and down (U, D) directions of the vehicle may be expressed in a vertical direction.
본 발명의 바람직한 실시 예에 따른 자동차의 에어백 장치(10)는 도 1 및 도 2에 도시된 바와 같이, 자동차의 충돌시 탑승자의 양측 어깨를 중심으로 상체를 전체적으로 감싸서 구속하도록, 탑승자의 후측에서 전면을 향해 팽창 전개되는 에어백 쿠션(20) 및 자동차의 충돌시 충격 감지신호에 의해 가스를 발생시켜 에어백 쿠션(20)에 공급하는 인플레이터(21)(도 3 참조)를 포함한다.As shown in FIGS. 1 and 2 , the airbag device 10 for a vehicle according to a preferred embodiment of the present invention is configured so that the upper body is entirely wrapped around the shoulders of both sides of the occupant and restrained from the front side of the occupant when the vehicle collides. and an inflator 21 (refer to FIG. 3 ) that generates gas by an impact detection signal upon collision of an airbag cushion 20 and expands and deploys toward the airbag cushion 20 and supplies it to the airbag cushion 20 .
이와 함께, 본 발명의 바람직한 실시 예에 따른 자동차의 에어백 장치(10)는 탑승자의 양측에 각각 팽창 전개되는 한 쌍의 사이드 에어백 쿠션(이하 '사이드 쿠션'이라 약칭함)(22)을 더 포함할 수 있다. In addition, the airbag device 10 for a vehicle according to a preferred embodiment of the present invention may further include a pair of side airbag cushions (hereinafter abbreviated as 'side cushions') 22 that are respectively inflated and deployed on both sides of the occupant. can
에어백 쿠션(20)은 탑승자의 후측에서 전면을 향해 팽창 전개되어 탑승자의 상체 전면과 머리 부분 양측을 구속해서 탑승자를 안전하게 보호하는 기능을 한다. The airbag cushion 20 expands and deploys from the rear side of the occupant to the front side, thereby restraining both sides of the occupant's upper body front and the head, thereby protecting the occupant safely.
즉, 에어백 쿠션(20)은 탑승자의 양측에 팽창 전개되는 한 쌍의 사이드 쿠션(22)과 함께 탑승자의 상체 전면과 양측면을 구속해서 보호하는 기능을 한다. That is, the airbag cushion 20 functions to restrain and protect the front and both sides of the occupant's upper body together with the pair of side cushions 22 that are inflated and deployed on both sides of the occupant.
이를 위해, 에어백 쿠션(20)은 도 3에 도시된 바와 같이, 상부에서 보았을 때 단면이 대략 '∩' 형상이나 '∧' 형상으로 형성될 수 있다. To this end, the airbag cushion 20 may be formed in an approximately '∩' shape or a '∧' shape when viewed from the top, as shown in FIG. 3 .
그래서 에어백 쿠션(20)은 탑승자의 머리 부위를 중심으로 양측 어깨를 감싸고 탑승자의 가슴 부위 전면에서 복부 및 골반 부위 전면을 향해 숄 형상으로 팽창 전개된다.Therefore, the airbag cushion 20 surrounds both shoulders around the head of the occupant, and expands and deploys in a shawl shape from the front of the occupant's chest to the front of the abdomen and pelvis.
상세하게 설명하면, 에어백 쿠션(20)은 탑승자의 양측 어깨부터 골반 부위의 전면에 팽창 전개되는 제1 및 제2 쿠션(30,40)과 제1 및 제2 쿠션(30,40)의 후단부를 연결하고 탑승자의 머리 부위를 구속하는 연결부(50)를 포함한다. In detail, the airbag cushion 20 includes first and second cushions 30 and 40 that are inflated and deployed from both shoulders of the passenger to the front of the pelvis, and rear ends of the first and second cushions 30 and 40 and a connecting portion 50 for connecting and restraining the head portion of the occupant.
연결부(50)는 도 3에 도시된 바와 같이, 대략 '⌒' 형상을 이루도록 상방으로 볼록하게 형성되고, 에어백 쿠션(20)의 팽창 전개시, 등받이(12)의 상단에 연결된 헤드레스트(13)의 후측에 배치될 수 있다. As shown in FIG. 3 , the connection part 50 is convex upwardly to form an approximately '⌒' shape, and when the airbag cushion 20 is inflated and deployed, a headrest 13 connected to the upper end of the backrest 12 . may be disposed on the rear side of the
이와 같이, 본 발명은 에어백 쿠션의 연결부를 헤드레스트 후측에 배치함으로써, 헤드레스트의 강성을 이용해서 에어백 쿠션의 팽창 전개시 강성을 높일 수 있다. As described above, in the present invention, by arranging the connecting portion of the airbag cushion on the rear side of the headrest, the rigidity of the airbag cushion can be increased when the airbag cushion is inflated and deployed by using the rigidity of the headrest.
물론, 연결부(50)의 형상은 이에 한정되는 것은 아니며, '一' 형상이나 '┏┓' 형상 등 다양하게 변경될 수 있다.Of course, the shape of the connection part 50 is not limited thereto, and may be variously changed, such as a 'one' shape or a '┏┓' shape.
또한, 연결부(50)는 등받이(12) 후측에 탑승하는 탑승자와의 충돌시 충격을 완화할 수 있도록, 등받이(50) 후면을 따라 하방으로 연장 형성될 수도 있다. In addition, the connection part 50 may be formed to extend downward along the rear surface of the backrest 50 so as to mitigate the impact in the event of a collision with an occupant riding on the rear side of the backrest 12 .
제1 및 제2 쿠션(30,40)은 각각 연결부(50)의 양단에서 전방으로 연장 형성될 수 있다. The first and second cushions 30 and 40 may be formed to extend forward from both ends of the connection part 50 , respectively.
제1 및 제2 쿠션(30,40)과 연결부(50)는 각각 탑승자의 전면에 접하는 내측 패널과 내측 패널의 반대측에 배치되는 외측 패널의 가장자리를 재봉 방식 등으로 접합해서 백 형상으로 형성될 수 있다.The first and second cushions 30 and 40 and the connecting portion 50 may be formed in a bag shape by bonding the edges of the inner panel in contact with the front of the passenger and the outer panel disposed on the opposite side of the inner panel, respectively, using a sewing method or the like. have.
제1 및 제2 쿠션(30,40)은 각각 탑승자의 어깨 부위에서 골반 부위를 안전하게 보호할 수 있도록, 중앙부에 비해 상단부와 하단부가 각각 넓은 폭으로 형성될 수 있다. The first and second cushions 30 and 40 may each have an upper end and a lower end having a wider width than the central portion so as to safely protect the pelvic region from the shoulder region of the occupant.
여기서, 제1 및 제2 쿠션(30,40)의 대략 중앙부 외측에는 각각 사이드 쿠션(22)과의 중첩을 방지하기 위해, 제1 및 제2 중첩방지영역(33,43)이 마련될 수 있다. Here, in order to prevent overlapping with the side cushion 22, respectively, first and second anti-overlapping regions 33 and 43 may be provided on the outside of the approximately central portion of the first and second cushions 30 and 40. .
제1 및 제2 중첩방지영역(33,43)은 각각 사이드 쿠션(20)과의 중첩되더라도 팽창 두께가 증가하지 않도록, 에어백 쿠션(20)의 팽창 전개시 팽창되지 않는 비팽창 영역으로 마련될 수 있다. The first and second anti-overlapping regions 33 and 43 may be provided as non-inflatable regions that are not inflated when the airbag cushion 20 is inflated and deployed so that the inflatable thickness does not increase even if it overlaps with the side cushion 20, respectively. have.
그리고 제1 및 제2 쿠션(30,40) 중에서 어느 하나, 예컨대 제1 쿠션(30)의 하단에는 제2 쿠션(40)의 하단부와 연결 가능하도록, 연장부(34)가 연장 형성될 수 있다. And one of the first and second cushions 30 and 40, for example, at the lower end of the first cushion 30, an extension portion 34 may be formed to be connected to the lower end of the second cushion 40. .
연장부(34)는 벨크로 파스너나 접착테이프 등을 이용해서 제2 쿠션(40)의 하단부에 부착되거나, 재봉 방식 등 다양한 방식으로 제2 쿠션(40)의 하단부와 연결될 수 있다. The extension part 34 may be attached to the lower end of the second cushion 40 using a Velcro fastener or an adhesive tape, or may be connected to the lower end of the second cushion 40 in various ways such as a sewing method.
이러한 에어백 쿠션(20)은 도 4에 도시된 바와 같이, 시트(11)의 등받이(12) 내부에 마련되는 등받이 프레임(14)의 상단부에 설치될 수 있다. As shown in FIG. 4 , the airbag cushion 20 may be installed at the upper end of the backrest frame 14 provided inside the backrest 12 of the seat 11 .
에어백 쿠션(20)에는 등받이 프레임(14)에 고정되는 복수의 고정부(23)가 돌출 형성될 수 있다. A plurality of fixing parts 23 fixed to the backrest frame 14 may protrude from the airbag cushion 20 .
예를 들어, 고정부(23)는 제1 쿠션(30)의 좌측 상단과 제2 쿠션(40)의 우측 상단 및 연결부(50)의 후단에 형성될 수 있다. For example, the fixing part 23 may be formed at an upper left end of the first cushion 30 , a right upper end of the second cushion 40 , and a rear end of the connecting part 50 .
여기서, 연결부(50)의 후단에는 인플레이터(21)로부터 가스가 도입되는 도입부(51)가 형성되고, 도입부(51)의 양측에 각각 한 쌍의 고정부(23)가 형성될 수 있다.Here, an introduction part 51 into which gas is introduced from the inflator 21 may be formed at the rear end of the connection part 50 , and a pair of fixing parts 23 may be formed on both sides of the introduction part 51 , respectively.
각 고정부(23)는 등받이 프레임(14)의 상단 프레임 양측과 중앙부에 설정된 결합위치(P)에 각각 볼트를 체결하거나 리벳 등의 방식으로 고정될 수 있다.Each fixing part 23 may be fixed by fastening bolts or rivets to the coupling positions P set on both sides and the central part of the upper frame of the backrest frame 14 , respectively.
물론, 고정부(23)는 등받이 프레임(14)에 형성된 걸림돌기가 후크 등에 결합되는 결합홈이 형성되거나, 등받이 프레임(14)에 형성된 결합홈에 결합되는 걸림돌기나 후크를 구비할 수도 있다. Of course, the fixing part 23 may include a coupling groove in which the locking protrusion formed on the backrest frame 14 is coupled to a hook or the like, or a locking protrusion or a hook coupled to the coupling groove formed in the backrest frame 14 .
한편, 본 실시 예에 따른 자동차의 에어백 장치(10)는 탑승자의 자세, 즉 후방으로 기댄 자세에서 에어백 쿠션(20)의 전개 형상을 한정하는 한정수단(60) 및 한정수단(60)의 길이를 조절하는 조절모듈(70)(도 6 참조)을 더 포함할 수 있다. On the other hand, in the airbag device 10 for a vehicle according to the present embodiment, the length of the limiting means 60 and the limiting means 60 for limiting the deployment shape of the airbag cushion 20 in the occupant's posture, that is, the rearward reclining posture. It may further include a control module 70 (see FIG. 6) for adjusting.
한정수단(60)은 대략 띠 형상으로 형성되고, 팽창 전개된 에어백 쿠션(10)의 제1 및 제2 쿠션(30,40)과 연결부(50)가 탑승자와 밀착되어 탑승자를 효과적으로 구속하도록, 전개 형상을 한정할 수 있다. The limiting means 60 is formed in a substantially belt shape, and deployed so that the first and second cushions 30 and 40 and the connecting portion 50 of the inflated and deployed airbag cushion 10 are in close contact with the occupant and effectively restrain the occupant. shape can be defined.
예를 들어, 한정수단(60)은 미리 설정된 폭을 갖는 띠 형상의 웨빙으로 마련될 수 있다. 이러한 한정수단(60)의 양단은 조절모듈(70)에 연결될 수 있다. For example, the limiting means 60 may be provided as a band-shaped webbing having a preset width. Both ends of the limiting means 60 may be connected to the control module 70 .
조절모듈(70)은 에어백 쿠션(20)을 감는 한정수단(60)의 길이를 조절하는 기능을 한다. The adjustment module 70 functions to adjust the length of the limiting means 60 that winds the airbag cushion 20 .
이러한 조절모듈(70)은 전원을 공급받아 구동되는 모터나, 시트벨트에 적용되는 리트랙터와 같이 다양한 방식으로 한정수단의 길이를 조절하는 액츄에이터로 마련될 수 있다. The control module 70 may be provided as an actuator that adjusts the length of the limiting means in various ways, such as a motor driven by receiving power or a retractor applied to a seat belt.
에어백 쿠션(20)에는 한정수단(60)을 이용해서 구속하고자 하는 위치를 제한하도록, 복수의 고정부재(24)가 마련될 수 있다. A plurality of fixing members 24 may be provided in the airbag cushion 20 to limit the position to be restrained by using the limiting means 60 .
고정부재(24)는 에어백 쿠션(20)과 동일하거나 유사한 직물 재질의 재료를 이용해서 제조될 수 있다. The fixing member 24 may be manufactured using the same or similar fabric material as the airbag cushion 20 .
이러한 고정부재(24)는 에어백 쿠션(20)의 제1 및 제2 쿠션(30,40)과 연결부(50)에 각각 마련될 수 있다. The fixing member 24 may be provided in the first and second cushions 30 and 40 and the connecting portion 50 of the airbag cushion 20 , respectively.
예를 들어, 고정부재(24)는 제1 및 제2 쿠션(30,40)의 중앙부와 제1 및 제2 중첩방지영역(33,43)나 연결부(50)에 서로 이격되어 복수 개로 마련될 수 있다. For example, the fixing member 24 is spaced apart from each other in the central portion of the first and second cushions 30 and 40 and the first and second overlapping prevention regions 33 and 43 or the connecting portion 50 to be provided in plurality. can
이와 같이, 본 발명은 에어백 쿠션에 복수의 고정부재를 설치해서 한정수단이 탑승자와 밀착되도록 위치를 한정할 수 있다. As described above, according to the present invention, the position of the limiting means can be limited so that the limiting means is in close contact with the occupant by installing a plurality of fixing members on the airbag cushion.
따라서 본 발명은 한정수단을 이용해서 에어백 쿠션의 전개 형상을 한정하여 탑승자의 상체를 구속함으로써, 탑승자를 더욱 안전하게 보호할 수 있다. Therefore, according to the present invention, the occupant can be more safely protected by restricting the upper body of the occupant by limiting the deployment shape of the airbag cushion using the limiting means.
한편, 조절모듈(70)은 등받이(12)의 회전 각도를 감지하는 감지센서(도면 미도시)의 감지신호에 따라 구동될 수 있다. On the other hand, the adjustment module 70 may be driven according to a detection signal of a detection sensor (not shown) that detects the rotation angle of the backrest 12 .
상기 감지센서는 등받이(12)가 후방으로 회전한 각도에 따라 감지신호의 전압값 또는 전류값을 변경해서 출력할 수 있다. The detection sensor may output by changing the voltage value or current value of the detection signal according to the angle at which the backrest 12 is rotated backward.
그래서 조절모듈(70)은 상기 감지신호의 전압값 또는 전류값에 대응되는 회전각도가 미리 설정된 설정각도, 예컨대 40°이상인 경우에만 한정수단(60)의 길이를 감소시키도록 구동될 수 있다. Therefore, the adjustment module 70 may be driven to reduce the length of the limiting means 60 only when the rotation angle corresponding to the voltage value or the current value of the detection signal is a preset angle, for example, 40° or more.
이와 같이, 본 발명은 탑승자가 후방으로 기댄 자세인 경우에 한정수단의 길이를 조절해서 팽창 전개되는 에어백 쿠션을 탑승자의 상체에 밀착시켜 탑승자를 구속할 수 있다. As described above, according to the present invention, when the occupant is in a reclining posture, the length of the limiting means is adjusted and the inflatable and deployed airbag cushion is brought into close contact with the occupant's upper body to restrain the occupant.
이에 따라, 본 발명은 에어백 쿠션의 전개 형상을 효과적으로 제한해서 탑승자를 더욱 안전하게 보호할 수 있다. Accordingly, the present invention can effectively limit the deployment shape of the airbag cushion to further safely protect the occupant.
다음, 도 5 내지 도 8을 참조해서 본 발명의 바람직한 실시 예에 따른 자동차의 에어백 장치의 결합관계 및 작동방법을 상세하게 설명한다. Next, a coupling relationship and an operation method of an airbag device for a vehicle according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 5 to 8 .
도 5 및 도 6은 각각 에어백 쿠션이 전개된 상태를 보인 정면도와 측면도이고, 도 7 및 도 8은 각각 조절모듈에 의해 한정수단의 길이가 조절된 상태를 보인 정면도와 측면도이다. 5 and 6 are front and side views, respectively, showing a state in which the airbag cushion is deployed, and FIGS. 7 and 8 are front and side views, respectively, showing a state in which the length of the limiting means is adjusted by the adjusting module.
먼저, 작업자는 접거나 말아서 폴딩된 상태의 에어백 쿠션(20)을 등받이(120 내부에 설치한다. First, the operator installs the airbag cushion 20 in a folded state inside the backrest 120 by folding or rolling it.
이때, 에어백 쿠션(20)에 마련된 각 고정부(23)는 등받이 프레임(14)의 상단 프레임에 미리 설정된 설치위치에 각각 결합된다. At this time, each fixing part 23 provided in the airbag cushion 20 is respectively coupled to a preset installation position on the upper frame of the backrest frame 14 .
에어백 쿠션(20)에 마련된 복수의 고정부재(24)에는 띠 형상의 한정수단(60)이 설치되고, 한정수단(60)의 양단은 조절모듈(70)에 연결된다. A band-shaped limiting means 60 is installed on the plurality of fixing members 24 provided in the airbag cushion 20 , and both ends of the limiting means 60 are connected to the control module 70 .
이와 같은 과정을 통해 자동차에 설치된 에어백 장치(10)는 자동차의 충돌 발생시 인플레이터(21)로부터 도입부(51)를 통해 가스를 공급받아 팽창 전개된다. Through this process, the airbag device 10 installed in the vehicle is supplied with gas from the inflator 21 through the introduction unit 51 when the vehicle crashes and is inflated and deployed.
즉, 도입부(51)를 통해 연결부(50)에 가스가 공급되면, 연결부(50)는 등받이(12) 커버에 형성된 절개선을 절개하면서 외부로 팽창 전개되고, 연결부(50)의 양측 전단에 연결된 제1 및 제2 쿠션(30,40)으로 가스를 전달한다.That is, when gas is supplied to the connection part 50 through the introduction part 51 , the connection part 50 expands and unfolds to the outside while cutting the cut line formed on the backrest 12 cover, and is connected to both front ends of the connection part 50 . The gas is delivered to the first and second cushions 30 and 40 .
그러면, 제1 및 제2 쿠션(50,60)은 각각 도 5 및 도 6에 도시된 바와 같이, 등받이(12) 상단에 결합된 헤드레스트(13)와 탑승자의 머리부위을 넘어 전방으로 팽창되고, 탑승자의 상체 전면을 따라 하방으로 전개된다. Then, the first and second cushions 50 and 60 are expanded forward beyond the headrest 13 coupled to the top of the backrest 12 and the occupant's head, as shown in FIGS. 5 and 6, respectively, It is deployed downward along the front of the occupant's upper body.
그래서 제1 및 제2 쿠션(30,40)은 각각 탑승자의 목 부위부터 가슴, 복부 및 골반 부위까지 팽창 전개되어 탑승자의 상체를 전체적으로 구속할 수 있다. Therefore, the first and second cushions 30 and 40 may be expanded and deployed from the neck region of the occupant to the chest, abdomen, and pelvis, respectively, to constrain the occupant's upper body as a whole.
이때, 제1 및 제2 쿠션(30,40)의 외측에는 각각 제1 및 제2 중첩방지영역(33,43)이 마련됨에 따라, 탑승자의 양측에 각각 팽창 전개되는 사이드 쿠션(22)과 에어백 쿠션(20)의 중첩이 방지된다. At this time, as the first and second anti-overlapping regions 33 and 43 are provided on the outside of the first and second cushions 30 and 40, respectively, the side cushion 22 and the airbag that are inflated and deployed on both sides of the occupant, respectively The overlapping of the cushion 20 is prevented.
한편, 등받이(12)에 설치된 감지센서는 등받이(12)의 회전각도를 감지한 감지신호를 발생한다. On the other hand, the detection sensor installed on the backrest 12 generates a detection signal for detecting the rotation angle of the backrest (12).
그러면, 조절모듈(70)은 상기 감지신호에 대응되는 등받이(12)의 회전각도가 미리 설정된 설정각도 이상이면, 한정수단(60)의 길이를 감소시키도록 한정수단(60)의 길이를 조절한다. Then, the adjustment module 70 adjusts the length of the limiting means 60 to reduce the length of the limiting means 60 when the rotation angle of the backrest 12 corresponding to the sensing signal is greater than or equal to a preset angle. .
한정수단(60)은 도 7 및 도 8에 도시된 바와 같이, 팽창 전개된 에어백 쿠션(10)의 제1 및 제2 쿠션(30,40)과 연결부(50)가 탑승자와 밀착되도록, 전개 형상을 한정한다. As shown in FIGS. 7 and 8 , the limiting means 60 has a deployed shape so that the first and second cushions 30 and 40 and the connection part 50 of the inflated and deployed airbag cushion 10 are in close contact with the occupant. to limit
즉, 한정수단(60)의 길이가 감소함에 따라, 도 7 및 도 8에 도시된 에어백 쿠션(20)의 가로 방향 폭(w1)과 전후 방향 폭(w2)은 각각 도 5 및 도 6에 도시된 가로 방향 폭(W1)과 전후 방향 폭(W2)에 비해 감소한다(w1<W1, w2<W2)That is, as the length of the limiting means 60 decreases, the horizontal width w1 and the front-rear width w2 of the airbag cushion 20 shown in FIGS. 7 and 8 are shown in FIGS. 5 and 6 , respectively. It decreases compared to the horizontal width (W1) and front-rear width (W2) (w1<W1, w2<W2)
이와 같이, 본 발명은 탑승자가 후방으로 기댄 자세인 경우에 한정수단의 길이를 조절해서 팽창 전개되는 에어백 쿠션을 탑승자의 상체에 밀착시켜 탑승자를 구속할 수 있다. As described above, according to the present invention, when the occupant is in a reclining posture, the length of the limiting means is adjusted and the inflatable and deployed airbag cushion is brought into close contact with the occupant's upper body to restrain the occupant.
이에 따라, 본 발명은 에어백 쿠션의 전개 형상을 효과적으로 제한해서 탑승자를 더욱 안전하게 보호할 수 있다. Accordingly, the present invention can effectively limit the deployment shape of the airbag cushion to further safely protect the occupant.
이상 본 발명자에 의해서 이루어진 발명을 상기 실시 예에 따라 구체적으로 설명하였지만, 본 발명은 상기 실시 예에 한정되는 것은 아니고, 그 요지를 이탈하지 않는 범위에서 여러 가지로 변경 가능한 것은 물론이다.Although the invention made by the present inventors has been described in detail according to the above embodiments, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the gist of the present invention.
본 발명은 자동차의 충돌시 탑승자의 정면과 양측면에 에어백 쿠션을 팽창 전개시켜 탑승자를 안전하게 보호할 수 있는 자동차의 에어백 장치 기술에 적용된다.The present invention is applied to an airbag device technology for a vehicle that can safely protect an occupant by inflating and deploying an airbag cushion on the front and both sides of the occupant during a collision of the vehicle.

Claims (9)

  1. 자동차의 충돌시 탑승자의 양측 어깨를 중심으로 상체를 전체적으로 구속하는 에어백 쿠션 및 In the event of a car crash, the airbag cushion and
    자동차의 충돌시 충격 감지신호에 의해 가스를 발생시켜 상기 에어백 쿠션에 공급하는 인플레이터를 포함하고, and an inflator that generates gas according to an impact detection signal upon collision of a vehicle and supplies it to the airbag cushion,
    상기 에어백 쿠션은 탑승자의 후측에서 전면을 향해 팽창 전개되어 탑승자의 상체 전면과 머리 부분 양측을 구속하는 것을 특징으로 하는 자동차의 에어백 장치.and the airbag cushion is inflated and deployed from the rear to the front of the occupant to restrain both the front of the occupant's upper body and both sides of the head.
  2. 제1항에 있어서, According to claim 1,
    상기 에어백 쿠션은 탑승자의 양측 어깨부터 골반 부위의 전면에 팽창 전개되는 제1 및 제2 쿠션과 The airbag cushion includes first and second cushions inflated and deployed from both shoulders of the passenger to the front of the pelvis;
    상기 제1 및 제2 쿠션의 후단부를 연결하고 탑승자의 머리 부위를 구속하는 연결부를 포함하는 것을 특징으로 하는 자동차의 에어백 장치. and a connecting portion connecting rear ends of the first and second cushions and restraining a head portion of an occupant.
  3. 제2항에 있어서, 3. The method of claim 2,
    상기 탑승자의 양측에 팽창 전개되는 한 쌍의 사이드 에어백 쿠션을 더 포함하고, Further comprising a pair of side airbag cushions inflated and deployed on both sides of the occupant,
    상기 제1 및 제2 쿠션의 외측에는 각각 상기 한 쌍의 사이드 에어백 쿠션과의 중첩을 방지하도록, 제1 및 제2 중첩방지영역이 마련되는 것을 특징으로 하는 자동차의 에어백 장치. and first and second anti-overlapping areas are provided outside the first and second cushions to prevent overlapping with the pair of side airbag cushions, respectively.
  4. 제2항에 있어서, 3. The method of claim 2,
    상기 에어백 쿠션은 시트의 등받이 내부에 내장되고, The airbag cushion is built into the backrest of the seat,
    상기 에어백 쿠션에는 등받이 내부의 시트 프레임에 고정되는 복수의 고정부가 마련되는 것을 특징으로 하는 자동차의 에어백 장치. The airbag device for a vehicle, characterized in that the airbag cushion is provided with a plurality of fixing parts fixed to the seat frame inside the backrest.
  5. 제4항에 있어서, 5. The method of claim 4,
    상기 복수의 고정부는 상기 제1 및 제2 쿠션의 양측과 상기 연결부의 후단에 각각 형성되는 것을 특징으로 하는 자동차의 에어백 장치.The airbag device for a vehicle, characterized in that the plurality of fixing parts are respectively formed at both sides of the first and second cushions and at the rear end of the connection part.
  6. 제2항에 있어서, 3. The method of claim 2,
    상기 연결부는 상기 에어백 쿠션의 팽창 전개시, 상기 에어백 쿠션의 지지 강도를 높이도록, 등받이의 상단에 결합된 헤드레스트에 의해 지지되는 것을 특징으로 하는 자동차의 에어백 장치. and the connecting portion is supported by a headrest coupled to an upper end of a backrest to increase the support strength of the airbag cushion when the airbag cushion is inflated and deployed.
  7. 제2항 내지 제6항 중 어느 한 항에 있어서, 7. The method according to any one of claims 2 to 6,
    상기 에어백 쿠션이 탑승자와 밀착되도록, 상기 에어백 쿠션의 전개 형상을 한정하는 한정수단을 더 포함하고, and limiting means for defining a deployment shape of the airbag cushion so that the airbag cushion is in close contact with the occupant;
    상기 에어백 쿠션에는 상기 한정수단을 고정하는 복수의 고정부재가 마련되는 것을 특징으로 하는 자동차의 에어백 장치.The airbag device for a vehicle, characterized in that the airbag cushion is provided with a plurality of fixing members for fixing the limiting means.
  8. 제7항에 있어서, 8. The method of claim 7,
    상기 복수의 고정부재는 상기 한정수단이 탑승자의 가슴부위에 배치되도록, 상기 제1 및 제2 쿠션의 중앙부와 상기 제1 및 제2 중첩영역 또는 상기 연장부에 각각 마련되는 것을 특징으로 하는 자동차의 에어백 장치. The plurality of fixing members are respectively provided in the central portion of the first and second cushions and the first and second overlapping regions or the extension portion so that the limiting means is disposed on the chest of the occupant. airbag device.
  9. 제7항에 있어서, 8. The method of claim 7,
    등받이의 전후 방향 회전 각도를 감지하는 감지센서 및 A sensor that detects the forward and backward rotation angle of the backrest and
    상기 감지센서의 감지신호에 대응되는 등받이의 회전 각도가 미리 설정된 설정각도 이상이면, 상기 한정수단의 길이를 감소시키도록 상기 한정수단의 길이를 조절하는 조절모듈을 더 포함하는 것을 자동차의 에어백 장치. If the rotation angle of the backrest corresponding to the detection signal of the detection sensor is greater than or equal to a preset angle, the airbag device of the vehicle further comprising a control module for adjusting the length of the limiting means to reduce the length of the limiting means.
PCT/KR2022/005474 2021-04-23 2022-04-15 Vehicle airbag device WO2022225264A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101646349B1 (en) * 2014-10-07 2016-08-08 현대자동차주식회사 Rear seat air-bag apparatus and controlling method thereof for vehicle
JP2019018593A (en) * 2017-07-11 2019-02-07 本田技研工業株式会社 Air bag device
KR20190138959A (en) * 2018-06-07 2019-12-17 아우토리브 디벨롭먼트 아베 Airbag apparatus of vehicle
KR102167448B1 (en) * 2019-06-14 2020-10-19 아우토리브 디벨롭먼트 아베 Airbag apparatus of vehicle
KR102209220B1 (en) * 2019-06-20 2021-01-29 아우토리브 디벨롭먼트 아베 Airbag apparatus of vehicle

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101611087B1 (en) 2014-10-23 2016-04-11 현대자동차주식회사 Method and system for protecting passenger in vehicle
KR101655569B1 (en) 2014-11-12 2016-09-08 현대자동차주식회사 Method and system for protecting passenger in vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101646349B1 (en) * 2014-10-07 2016-08-08 현대자동차주식회사 Rear seat air-bag apparatus and controlling method thereof for vehicle
JP2019018593A (en) * 2017-07-11 2019-02-07 本田技研工業株式会社 Air bag device
KR20190138959A (en) * 2018-06-07 2019-12-17 아우토리브 디벨롭먼트 아베 Airbag apparatus of vehicle
KR102167448B1 (en) * 2019-06-14 2020-10-19 아우토리브 디벨롭먼트 아베 Airbag apparatus of vehicle
KR102209220B1 (en) * 2019-06-20 2021-01-29 아우토리브 디벨롭먼트 아베 Airbag apparatus of vehicle

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