WO2017146439A1 - Front airbag device of automobile - Google Patents

Front airbag device of automobile Download PDF

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Publication number
WO2017146439A1
WO2017146439A1 PCT/KR2017/001890 KR2017001890W WO2017146439A1 WO 2017146439 A1 WO2017146439 A1 WO 2017146439A1 KR 2017001890 W KR2017001890 W KR 2017001890W WO 2017146439 A1 WO2017146439 A1 WO 2017146439A1
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WO
WIPO (PCT)
Prior art keywords
airbag
head
passenger
vehicle
frontal collision
Prior art date
Application number
PCT/KR2017/001890
Other languages
French (fr)
Korean (ko)
Inventor
김동영
이성우
Original Assignee
아우토리브 디벨롭먼트 아베
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Publication of WO2017146439A1 publication Critical patent/WO2017146439A1/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0134—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to imminent contact with an obstacle, e.g. using radar systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/205—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in dashboards
    • 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
    • B60R21/215—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member
    • B60R21/2165—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member characterised by a tear line for defining a deployment opening
    • 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

Definitions

  • the present invention relates to a vehicle front airbag device that protects a passenger by inflating and deploying toward the passenger during a frontal collision of the vehicle.
  • Airbag is a representative safety device along with a vehicle seat belt.
  • Airbags include driver's seat airbags, passenger seat airbags, side airbags, curtain airbags, and the like.
  • Driver airbags protect the driver in front of the car.
  • the driver's airbag is mounted inside the steering wheel of the car and instantly inflates when a constant shock is applied.
  • the passenger airbag is mounted inside the instrument panel of the car to instantly inflate in the event of a vehicle crash to protect the passenger seat.
  • Vehicle crash tests include vehicle crash tests and side crash tests, and there are various crash tests in different countries.
  • the human body In the frontal collision test, the human body is mounted on the driver's seat and the passenger's seat, and the head, chest, and neck injury values are evaluated when the vehicle is hit by an obstacle at the test speed required for the test vehicle.
  • Patent Document 1 US Patent No. US8,070,183
  • Patent Document 2 US Patent Publication No. US2012 / 0306187
  • An object of the present invention is to provide a front airbag apparatus of a vehicle that can effectively prevent movement of the passenger's head while moving to the collision side when the collision is eccentric to one side of the vehicle and overlaps the collision obstacle.
  • an airbag having a front facing the passenger when inflating the main inflation space;
  • an eccentric frontal collision that protrudes from the front of the airbag and impacts a predetermined portion on the outside along the width direction of the front of the vehicle occurs, the head of a passenger that collides with the front of the airbag moves toward the collision side.
  • a front airbag apparatus for a vehicle which includes at least one head restraint configured to block and deform by the impact force of the head of the passenger to catch the head of the passenger.
  • the head restraint is defined by an auxiliary panel connected to the front outer side of the airbag to form an auxiliary inflation space in communication with the main inflation space, wherein the auxiliary panel is connected to the front of the airbag in a corrugated state in a non-inflated state. Can be connected.
  • At least one communication hole may be formed in the front surface of the airbag to communicate the main expansion space and the auxiliary expansion space.
  • the airbag apparatus includes at least one frontal collision detection unit that determines the eccentric frontal collision; And an opening and closing unit configured to open the communication hole when the eccentric frontal collision is determined by the frontal collision detecting unit.
  • the opening and closing unit is a tension member that is tensioned when the gas injection into the main expansion space of the air bag to close the communication hole; And a cutter for cutting the tension member to open the communication hole when the eccentric frontal collision is determined by the frontal collision sensing unit.
  • the head restraints are provided on left and right sides of the front side of the airbag, and the frontal collision detection unit is configured to determine a left eccentric frontal collision or a right eccentric frontal collision of the vehicle, and the left eccentric frontal collision or the right eccentricity
  • the communication hole provided at the left side of the front side of the airbag or the communication hole provided at the right side of the front side of the airbag may be opened by the opening / closing unit according to the front collision detection state.
  • Horizontal lengths of the upper and lower sides of the auxiliary panel connected to the sewing line on the front side of the airbag in the corrugated state may be different from each other.
  • the head of the passenger when the vehicle collides with the eccentric front, for example, when the front of the vehicle forms an angle with respect to the collision obstacle and a part of the front collides with the collision obstacle, the head of the passenger is The movement to the impact side can be prevented to prevent the passenger's head from moving into the gap between the side curtain airbag and the front airbag while rotating. As a result, the head of the passenger can be prevented from being injured by hitting an internal structure of the vehicle, for example, a door panel or an instrument panel.
  • the head of the passenger in the case of an eccentric frontal collision of the vehicle, may be prevented from moving while rotating by the frictional force between the head of the passenger and the front of the airbag, thereby effectively reducing the neck injury of the passenger.
  • FIG. 1 is a perspective view showing an inflated front airbag of a vehicle according to an embodiment of the present invention.
  • FIG. 2 is a front view illustrating a state in which the front airbag of the vehicle is inflated according to an embodiment of the present invention.
  • FIG. 3 is an enlarged view of the III display unit of FIG. 1.
  • FIG. 4 is an exploded view of a front airbag of a vehicle according to an embodiment of the present invention.
  • FIG. 5 is an enlarged view of the V display unit of FIG. 4.
  • FIG. 6 is a cross-sectional view taken along the line VI-VI of FIG. 5.
  • FIG. 7 is a view illustrating a left inclined collision state of a vehicle to help understand the operation of an airbag according to an embodiment of the present disclosure.
  • FIG. 8 is a view illustrating a state in which the head of the passenger initially contacts the front of the inflated airbag according to an embodiment of the present invention.
  • FIG. 9 is a view illustrating a state in which the head of the passenger is caught by the head restraint after the head of the passenger collides with the inflated airbag according to one embodiment of the present invention.
  • FIG. 10 is a front view illustrating an inflated airbag of a vehicle according to another embodiment of the present invention.
  • FIG. 11 is a perspective view showing the configuration of an airbag of a vehicle according to another embodiment of the present invention.
  • FIG. 12 is a cross-sectional view taken along the line XII-XII of FIG.
  • FIG. 13 is a view illustrating a state in which the auxiliary panel of the head restraint part is fully unfolded according to an embodiment of the present invention.
  • FIG. 14 is a front view of an airbag according to another exemplary embodiment of the present invention.
  • FIG. 15 is a view illustrating a state in which the auxiliary panel of the head restraint part of FIG. 14 is fully unfolded.
  • FIG. 16 is a front view of an airbag according to another embodiment of the present invention.
  • FIG. 17 is a view illustrating a state in which the auxiliary panel of the head restraint part of FIG. 16 is fully unfolded.
  • Airbag devices are widely used to reduce or minimize passenger injuries in vehicle crashes.
  • the airbag device can be installed at various locations in the vehicle. According to an embodiment of the present invention, the airbag device is installed in the passenger seat side instrument panel. In another embodiment of the present invention, the airbag device may be installed in the driver's side steering wheel.
  • FIG. 1 is a perspective view showing an inflated front airbag of a vehicle according to an embodiment of the present invention
  • Figure 2 is a front view showing a front airbag inflated state according to an embodiment of the present invention.
  • the airbag device 1 includes an airbag 10, an inflator 3 for supplying gas into the airbag 10, a head restraint unit 30, an opening and closing unit 50, and a collision detection unit. 70, and controller 90.
  • the airbag device 1 may be configured to be packaged and mounted in the instrument panel 5 disposed in front of the vehicle.
  • the airbag 10 includes a front face 11 facing passengers, side surfaces 12 and 13 provided at both sides of the front face 11, a rear face 14 facing the front face 11, upper and lower sides
  • the main expansion space A1 which is composed of the upper and lower surfaces 15 and 16 and is supplied with the gas from the inflator 3, is defined therein.
  • the head restraint 30 is configured to define an auxiliary inflation space A2 in communication with the main inflation space A1 of the airbag 10.
  • the head restraint unit 30 prevents the head of the passenger O from moving and rotating to the portion where the eccentric frontal collision occurs when the eccentric frontal collision of the vehicle occurs.
  • Eccentric frontal collisions may include all cases in which the collision obstacle is biased toward one side of the vehicle and collides. That is, it may include partially colliding from the outside of the front of the vehicle in the direction along the width direction of the vehicle. Eccentric frontal collisions may include colliding forwards without tilting against the collision obstacles, or crashing at a predetermined angle against the collision obstacles.
  • eccentric frontal collisions may include impacting less than 40% of the outside of the front of the vehicle in a direction along the width direction of the vehicle, with a predetermined angle, for example less than 15 degrees, relative to the collision obstacle. It may include conflicting.
  • An eccentric frontal collision is, for example, when the front left side of the vehicle is inclined at a predetermined angle with respect to the collision obstacle, and a part of the front left side of the vehicle overlaps with the collision obstacle so that an impact (hereinafter referred to as "left side impact”) It includes the case where it is added.
  • Eccentric frontal collision is when the front right side of the vehicle is inclined at a predetermined angle with respect to the collision obstacle, and a part of the front right side of the vehicle overlaps with the collision obstacle and an impact is applied (hereinafter referred to as “right side impact”). It includes.
  • Head restraint 30 protrudes toward the passenger (O) from the front 11 of the airbag 10 so that the head (H) of the passenger (O) front ( 11) to obliquely move and glance off to prevent the movement to the left, and when a collision force is applied from the head (H) of the passenger (O) is deformed to catch the head (H) of the passenger in the form of a glove. Therefore, the injury value of the head or neck of the passenger O can be reduced.
  • the head restraint part 30 communicates with the main inflation space A1 of the airbag 10 through a communication hole 11a formed in the front face 11 of the airbag 10.
  • the communication hole 11a may be configured to be opened and closed through the opening and closing unit 50.
  • the controller 90 receiving a signal from the front collision detection unit 70 operates the opening / closing unit 50 to open the communication hole 11a. Open.
  • the communication hole 11a is opened or closed by the opening / closing unit 50 to selectively expand the head restraint 30 according to various collision scenarios.
  • the opening and closing unit 50 is operated when the left impact is applied to open the communication hole (11a) to expand the head restraint portion 30.
  • the front collision detecting unit 70 determines a collision state based on information about various collision scenarios, and may include, for example, a plurality of sensors mounted at the front of the vehicle to detect left shock and right shock, respectively. have.
  • FIG. 3 is an enlarged view illustrating the III display unit of FIG. 1.
  • the opening / closing unit 50 is tensioned by the airbag 10 inflation force so that one end thereof communicates with the communication hole 11a formed in the front face 11 of the airbag 10.
  • a cutter 53 disposed at the side and operated at an oblique collision with the tension member 51 fixed at the rear side 14 side of the airbag 10 to cut the tension member 51.
  • an approximately truncated conical vent tube 55 may be connected to the communication hole 11a, and one end of the tension member 51 may be connected to open and close the distal end of the vent tube 55.
  • the communication hole 11a may be configured to be opened and closed by a shielding panel slidable along the inner surface of the front face 11 of the airbag 10.
  • the cutter 53 is operated to cut the tensioning member 51 to release the tension of the tensioning member 51.
  • the closed state of the distal end of the vent tube 55 is released by the gas pressure in the main expansion space A1 so that the gas in the main expansion space A1 is assisted in the head restraint portion 30 through the communication hole 11a. Gas flows into the expansion space A2.
  • the tension member 51 may include various shapes such as a band member, a cutable strip member, and a chain formed of the same material as the material of the airbag 10.
  • FIG. 4 is an exploded view of a front airbag of a vehicle according to an embodiment of the present invention.
  • an embodiment of the present invention includes a first panel P1 constituting the front 11, the rear 14, and the bottom 16 of the airbag 10 and an airbag 10.
  • the second and third panels P2 and P3 constituting the side surfaces 12 and 13 and the fourth panel P4 constituting the upper surface 15 of the airbag 10 are connected to each other to form a main expansion space ( It is formed to have A1).
  • the airbag 10 may be configured in various panel structures, such as a single panel or four or more panels, in addition to the four panels.
  • An inflator hole 14a is formed in a portion constituting the rear surface 14 of the airbag 10 of the first panel P1 so that gas generated from the inflator 3 flows into the main expansion space A1 of the airbag 10. To be supplied.
  • Vent holes 12a and 13a are formed in the second and third panels P2 and P3 constituting the side surfaces 12 and 13 of the airbag 10.
  • the vent holes 12a and 13a allow gas to be discharged to the outside of the main inflation space A1 of the airbag 10 to smoothly receive the passenger when the inflated airbag contacts the passenger. Damage caused by the expansion force of (10) is prevented.
  • An auxiliary panel 31 forming the head restraint 30 is connected to a portion constituting the front 11 of the airbag 10 of the first panel P1.
  • FIG. 5 is an enlarged view of the V display part of FIG. 4, and FIG. 6 is a cross-sectional view taken along the line VI-VI of FIG. 5.
  • the auxiliary panel 31 is connected to the front face 11 of the airbag 10 through a sewing line S1.
  • the auxiliary panel 31 has a corrugation portion 33 that is folded several times in the middle portion thereof.
  • the edge of the auxiliary panel 31 is connected to the front face 11 of the airbag 10 through the sewing line S3 in the state in which the wrinkle part 33 is formed.
  • the auxiliary expansion space A2 is defined outside the front face 11 of the airbag 10 by the sewing line S3 formed along the edge of the auxiliary panel 31.
  • the vent tube 55 may be formed in a truncated cone shape so that its distal end is closed when the tension member 51 is tensioned. Upon initial inflation of the airbag 10 of the tension member 51. The distal end 55a of the vent tube 55 is connected in a tightening state. The distal end portion 55a of the vent tube 55 is tightened more firmly by the tension force of the tension member 51 at the initial deployment of the airbag 10 in the main inflation space A1 of the airbag 10.
  • the cutter 53 when the cutter 53 is operated to cut the tension member 51, the tension force of the tension member 51 is released, and filled in the main inflation space A1 of the airbag 10
  • the distal end 55a of the vent tube 55 is inverted around the proximal end 55b of the vent tube 55 and positioned in the auxiliary expansion space A2 to open the communication hole 11a.
  • the gas in the main expansion space A1 can flow into the auxiliary expansion space A2.
  • FIG. 7 is a diagram illustrating an example of a left inclined collision state of a vehicle to help understand the operation of an airbag according to an embodiment of the present disclosure.
  • a vehicle may have a left inclined collision in which a part of the left side of the front of the vehicle overlaps the collision obstacle 8 at an angle ( ⁇ °) with respect to the collision obstacle 8. have.
  • FIG. 8 is a view illustrating a state in which the head of the passenger initially contacts the front of the inflated airbag according to an embodiment of the present invention.
  • gas is generated from the inflator 3, and the gas generated from the inflator 3 is supplied into the main expansion space A1 of the airbag 10.
  • the passenger moves toward the front and left of the vehicle, and the head H of the passenger O is bounced obliquely at the center or center-left of the front 11 of the inflated airbag 10 to the left. Move.
  • the head H of the passenger O moves while being rotated counterclockwise by the frictional force between the head H of the passenger O and the front face 11 of the airbag 10.
  • the head restraint portion 30 protrudes from the left side of the front 11 of the airbag 10 to initially prevent the head H of the passenger O from moving to the left.
  • FIG. 9 is a view showing a state in which the head of the passenger is caught by the head restraint after the head of the passenger hit the inflated airbag according to an embodiment of the present invention.
  • the head H of the passenger O which is primarily prevented from moving by hitting the head restraint 30, moves while pressing the outer surface of the head restraint 30 to the left to restrain the head restraint ( The outer surface of 30) wraps the head H of the passenger O in the form of a glove.
  • the head H of the passenger O is prevented from being rotated while being moved to the left, thereby preventing it from hitting the side internal structure of the vehicle, for example, the door frame of the vehicle. Therefore, the injury value of the head or neck of the passenger can be reduced.
  • FIG. 10 is a front view of the inflated airbag according to another embodiment of the present invention.
  • the head restraint part 40 is further provided on the right side of the front face 11 of the airbag 10. Since the head restraint 40 has a configuration substantially the same as that of the head restraint 30 described above, redundant description thereof will be omitted.
  • the head restraint may be restrained to selectively expand and deploy according to the left impact or the right impact of the vehicle.
  • the frontal collision detection unit 70 is configured to detect the left shock or the right shock of the vehicle.
  • a sensor for detecting a left shock may be provided at a front left side of the vehicle, and a sensor for detecting a right shock at the front right side of the vehicle may be provided separately.
  • the front collision detection unit 70 detects the right collision state, and the controller 90 receives the signal to operate the communication hole vent unit 50.
  • the communication hole vent unit 50 is operated to open the right communication hole side of the front face 11 of the airbag 10 so that the head restraint portion 40 disposed on the right side is expanded.
  • the kinematics of the passenger have a substantially symmetrical movement aspect in the left impact state.
  • the passenger moves to the right while obliquely colliding with the center or the center-right side of the front face 11 of the airbag 10.
  • the head restraint portion 40 provided on the right side of the airbag 10 protrudes to prevent the head H of the passenger 0 from moving to the right side.
  • the upper part of the front of the airbag 10 may protrude to prevent the head of the passenger from contacting the roof of the vehicle.
  • the head restraints 30 and 40 can expand in various ways in accordance with various vehicle crash scenarios. For example, if the car is in a pure frontal collision without being biased on either side to the collision obstruction, both head restraints 30 and 40 do not inflate, but only gas into the main inflation space A1 of the airbag 10. Can be supplied.
  • the left head restraint 30 when the vehicle forms a predetermined angle with the collision obstacle and is biased to the left side of the vehicle, the left head restraint 30 is inflated, and the vehicle forms the predetermined angle with the collision obstacle and is biased to the right side of the vehicle and overlaps. If so, the right head restraint 40 may be configured to expand.
  • both head restraints 30 and 40 may expand when detecting a frontal collision of a vehicle.
  • FIG. 11 is a perspective view showing the configuration of an airbag of a vehicle according to another embodiment of the present invention
  • Figure 12 is a cross-sectional view taken along the line XII-XII of FIG.
  • a vent tube blocking the communication hole 11a formed in the front face 11 of the airbag 10 may be used. Configuration) is excluded. In this case, when the airbag 10 is inflated, the communication hole 11a is always open. Therefore, when the airbag 10 is inflated, the gas supplied to the main inflation space A1 of the airbag 10 is injected into the auxiliary inflation space A2 through the communication hole 11a, so that the front of the airbag 10 ( In 11) an additional expansion projecting towards the passenger is always formed.
  • FIG. 13 is a view illustrating a state in which the auxiliary panel of the head restraint part is fully unfolded according to an embodiment of the present invention.
  • the auxiliary panel 31 has a substantially rectangular shape, and a plurality of folding lines F1 are formed in the middle of the auxiliary panel 31 to form an auxiliary panel 31 having wrinkles 31.
  • FIG. 14 is a front view of an airbag according to another exemplary embodiment of the present invention.
  • FIG. 15 is a view illustrating a state in which the auxiliary panel of the head restraint part of FIG. 14 is fully unfolded.
  • the auxiliary panel 71 has a substantially trapezoidal shape. That is, the auxiliary panel 71 has upper and lower sides 71a and 71b disposed in parallel with each other, and has left and right sides 71c and 71d connecting both ends of the upper and lower sides 71a and 71b.
  • the upper side 71a of the auxiliary panel 71 is shorter than the length of the lower side 71b so that the left side 7c connecting one end of the upper side 71a and one end of the lower side 7b is substantially upper and lower sides 71a and 71b.
  • the right side 71d which is orthogonal to and connects the other end of the upper side 71a and the other end of the lower side 71b is inclined upward,
  • auxiliary panel 71 In the middle of the auxiliary panel 71 is formed a plurality of folding lines (F2) correspondingly arranged in the shape of the auxiliary panel 71 to prepare the auxiliary panel 71 having a wrinkle portion (73).
  • folding lines (F2) correspondingly arranged in the shape of the auxiliary panel 71 to prepare the auxiliary panel 71 having a wrinkle portion (73).
  • FIG. 16 is a view showing the front of an airbag according to another embodiment of the present invention
  • FIG. 17 is a view showing a state in which the auxiliary panel of the head restraint part of FIG. 16 is fully deployed.
  • the auxiliary panel 81 of FIGS. 16 and 17 has a shape symmetrical in the transverse direction with respect to the auxiliary panel 71 of FIGS. 14 and 15 described above. Therefore, since its specific configuration and function is similar to the sub-panel 71 above, redundant description thereof will be omitted.
  • the length of the portion connected to the upper portion of the auxiliary panel 81 is substantially longer than the length connected to the lower portion of the auxiliary panel 81.
  • the auxiliary panel may be modified in various forms in addition to the rectangular and ladder shapes described above.
  • the auxiliary panel as described above may be combined at any arbitrary position of the front 11 of the airbag 10, that is, the coupling position of the auxiliary panel may be variously changed according to various collision scenarios.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Air Bags (AREA)

Abstract

A front airbag device of an automobile comprises: an airbag limiting a main expansion space and having a front facing a passenger during expansion; and at least one head restraining portion which protrudes from the front of the airbag and is configured to, when an eccentric head-on collision occurs to apply an impact to a predetermined portion of the outside along the width direction of the front of an automobile, prevent the head of the passenger colliding with the front of the airbag from moving to the collision side and to be deformed by a collision force of the head of the passenger to catch the head of the passenger. As such, it is possible to prevent the head of the passenger from moving while rotating toward the collision side, thereby effectively reducing head and neck injuries of the passenger.

Description

자동차의 전방 에어백 장치Front airbag device of the car
본 발명은 자동차의 정면 충돌 시 승객을 향하여 팽창 전개하여 승객을 보호하는 자동차의 전방 에어백 장치에 관한 것이다. The present invention relates to a vehicle front airbag device that protects a passenger by inflating and deploying toward the passenger during a frontal collision of the vehicle.
에어백은 자동차의 안전벨트와 더불어 대표적인 안전장치이다. 에어백은 운전석 에어백, 조수석 에어백, 측면 에어백, 커튼 에어백 등을 포함한다.An airbag is a representative safety device along with a vehicle seat belt. Airbags include driver's seat airbags, passenger seat airbags, side airbags, curtain airbags, and the like.
운전석 에어백은 자동차 정면 충돌 시 운전자를 보호한다. 운전석 에어백은 자동차의 스티어링 휠 내부에 장착되어 일정한 충격이 가해졌을 때 순간적으로 팽창한다. Driver airbags protect the driver in front of the car. The driver's airbag is mounted inside the steering wheel of the car and instantly inflates when a constant shock is applied.
조수석 에어백은 자동차의 인스투루먼트 패널의 내부에 장착되어 차량 충돌 시 순간적으로 팽창하여 조수석측 승객을 보호한다. The passenger airbag is mounted inside the instrument panel of the car to instantly inflate in the event of a vehicle crash to protect the passenger seat.
이러한 안전장치가 장착된 자동차의 충돌 시험은 필수적이다. 자동차 충돌 시험은 자동차 정면 충돌 시험, 측면 충돌 시험 등을 포함하고 있으며, 각국별로 여러 가지 충돌 시험이 있다.Collision testing of vehicles equipped with these safety devices is essential. Vehicle crash tests include vehicle crash tests and side crash tests, and there are various crash tests in different countries.
자동차 정면 충돌 시험은 운전석과 조수석측에 인체모형을 탑재하고, 시험용 자동차를 요구하는 시험속도로 장애물에 정면 충돌시켰을 때 두부와, 흉부, 목부 등의 상해치를 평가하도록 한다. In the frontal collision test, the human body is mounted on the driver's seat and the passenger's seat, and the head, chest, and neck injury values are evaluated when the vehicle is hit by an obstacle at the test speed required for the test vehicle.
2009년 9월에 미국의 고속도로교통안전위원회(NHTSA: National Highway Traffic Safety Administration)는 자동차 정면 충돌(front crashes)에서 벨트를 착용한 비 돌출 승객에 관한 사망자 발생률을 조사한 보고서를 발표하였다. In September 2009, the US National Highway Traffic Safety Administration (NHTSA) published a report investigating the incidence of fatalities for non-protruding passengers wearing belts in front crashes.
보고서는 극도로 심각한 충돌 후에 자동차와 예컨대, 코너 충격, 경사 충돌 또는 좁은 물체와의 충격과 같은 충돌 파트너 사이의 취약한 구조적 관계(poor structural engagement)와 관련된 충돌에서 가장 많은 사망자수가 발생된다는 결론을 내렸다. The report concluded that after an extremely severe crash, the largest number of deaths occurred in collisions involving a weak structural engagement between the car and a collision partner, such as a corner impact, a slope impact or a narrow object impact.
이러한 조사에 대응하여 NHTSA는 취약한 구조적 문제와 관련하는 자동차 충돌에 관계된 사상 위험을 경감시키기 위한 시험 방법을 연구하기 시작했다. 이 연구는 연구 유동 가변 장벽(RMDB: research moving deformable barrier)과 15도로 정지한 자동차 사이의 옵셋 충격(offset impact)은 자동차간 충돌에서 보여진 자동차 찌그러짐(vehicle crush), 승객 거동(occupant kinematics), 상해의 위험을 재현할 수 있다는 것을 입증했다. 최근 연구에서는 추가 경사 RMDB 대 자동차 충돌 시험(additional oblique RMDB-to-vehicle crash tests)을 추가하고 있다.In response to these investigations, NHTSA has begun investigating test methods to mitigate the eventual risks associated with car crashes associated with vulnerable structural problems. The study found that the offset impact between a research moving deformable barrier (RMDB) and a 15-degree stationary vehicle was determined by vehicle crush, occupant kinematics, and injuries seen in collisions between cars. Prove that you can reproduce the danger. Recent work adds additional oblique RMDB-to-vehicle crash tests.
[선행기술문헌][Preceding technical literature]
(특허문헌 1) 미국특허번호 US8,070,183(Patent Document 1) US Patent No. US8,070,183
(특허문헌 2) 미국특허공개번호 US2012/0306187(Patent Document 2) US Patent Publication No. US2012 / 0306187
본 발명의 목적은 자동차의 일측으로 편심되어 충돌 장애물과 중첩되어 충돌 시, 승객의 두부가 회전하면서 충돌 측으로 이동하는 것을 효과적으로 저지할 수 있는 자동차의 전방 에어백 장치를 제공하는 것이다. SUMMARY OF THE INVENTION An object of the present invention is to provide a front airbag apparatus of a vehicle that can effectively prevent movement of the passenger's head while moving to the collision side when the collision is eccentric to one side of the vehicle and overlaps the collision obstacle.
상기 목적을 달성하기 위하여 본 발명의 일 실시 예를 따르면, 메인 팽창 공간을 한정하며 팽창 시 승객을 향하는 정면을 갖는 에어백; 상기 에어백의 상기 정면으로부터 돌출되어 자동차의 정면의 폭 방향을 따르는 외측의 소정 부분에 충격이 가해지는 편심 정면 충돌이 발생할 경우, 상기 에어백의 상기 정면에 충돌하는 승객의 두부가 상기 충돌측으로 이동하는 것을 저지하고, 상기 승객의 상기 두부의 충돌력에 의해 변형되어 상기 승객의 상기 두부를 캐치하도록 구성된 적어도 하나의 두부 구속부를 포함하는 자동차의 전방 에어백 장치가 제공된다.According to an embodiment of the present invention to achieve the above object, an airbag having a front facing the passenger when inflating the main inflation space; When an eccentric frontal collision that protrudes from the front of the airbag and impacts a predetermined portion on the outside along the width direction of the front of the vehicle occurs, the head of a passenger that collides with the front of the airbag moves toward the collision side. A front airbag apparatus for a vehicle is provided which includes at least one head restraint configured to block and deform by the impact force of the head of the passenger to catch the head of the passenger.
상기 두부 구속부는 상기 에어백의 상기 정면 외측에 연결되어 상기 메인 팽창 공간과 연통하는 보조 팽창 공간을 형성하는 보조 패널에 의해 한정되고, 상기 보조 패널은 비 팽창상태에서 주름진 상태로 상기 에어백의 상기 정면에 연결될 수 있다. The head restraint is defined by an auxiliary panel connected to the front outer side of the airbag to form an auxiliary inflation space in communication with the main inflation space, wherein the auxiliary panel is connected to the front of the airbag in a corrugated state in a non-inflated state. Can be connected.
상기 에어백의 상기 정면에는 상기 메인 팽창 공간과 상기 보조 팽창 공간을 연통하는 적어도 하나의 연통홀이 형성될 수 있다. At least one communication hole may be formed in the front surface of the airbag to communicate the main expansion space and the auxiliary expansion space.
상기 에어백 장치는 상기 편심 정면 충돌을 판단하는 적어도 하나의 정면 충돌 감지 유닛; 및 상기 정면 충돌 감지 유닛에 의하여 상기 편심 정면 충돌이 판단된 경우, 상기 연통홀을 개방하도록 구성된 개폐 유닛을 더 포함할 수 있다. The airbag apparatus includes at least one frontal collision detection unit that determines the eccentric frontal collision; And an opening and closing unit configured to open the communication hole when the eccentric frontal collision is determined by the frontal collision detecting unit.
상기 개폐 유닛은 상기 에어백의 메인 팽창 공간 내로 가스 주입 시 인장되어 상기 연통홀을 폐쇄하는 인장부재; 및 상기 정면 충돌 감지 유닛에 의하여 상기 편심 정면 충돌이 판단된 경우 상기 인장부재를 절단하여 상기 연통홀을 개방되도록 하는 커터를 포함할 수 있다. The opening and closing unit is a tension member that is tensioned when the gas injection into the main expansion space of the air bag to close the communication hole; And a cutter for cutting the tension member to open the communication hole when the eccentric frontal collision is determined by the frontal collision sensing unit.
상기 두부 구속부는 상기 에어백의 상기 정면의 좌측 및 우측에 구비되고, 상기 정면 충돌 감지 유닛은 상기 자동차의 좌측 편심 정면 충돌 또는 우측 편심 정면 충돌을 판단하도록 구성되고, 상기 좌측 편심 정면 충돌 또는 상기 우측 편심 정면 충돌 감지 상태에 따라 상기 개폐 유닛에 의하여 상기 에어백의 상기 정면의 좌측에 구비된 연통홀 또는 상기 에어백의 상기 정면의 우측에 구비된 연통홀이 개방되도록 구성될 수 있다.The head restraints are provided on left and right sides of the front side of the airbag, and the frontal collision detection unit is configured to determine a left eccentric frontal collision or a right eccentric frontal collision of the vehicle, and the left eccentric frontal collision or the right eccentricity The communication hole provided at the left side of the front side of the airbag or the communication hole provided at the right side of the front side of the airbag may be opened by the opening / closing unit according to the front collision detection state.
상기 주름진 상태로 상기 에어백의 상기 정면에 상기 재봉라인에 연결된 상기 보조 패널의 상, 하변의 가로 길이는 서로 상이하게 구성될 수 있다. Horizontal lengths of the upper and lower sides of the auxiliary panel connected to the sewing line on the front side of the airbag in the corrugated state may be different from each other.
본 발명의 일 실시 예를 따르면, 자동차가 편심 정면 충돌하는 경우, 예를 들면, 자동차의 정면이 충돌 장애물에 대하여 소정각도를 이루고 정면의 일부가 충돌 장애물과 중첩되어 충돌하는 경우, 승객의 두부가 충돌측으로 이동하는 것을 저지하여 승객의 두부가 회전하면서 사이드 커튼 에어백 및 정면 에어백 사이의 틈새로 이동하는 것을 방지할 수 있다. 그 결과 승객의 두부가 자동차의 내부 구조물 예를 들면, 도어 패널 또는 인스트루먼트 패널 등에 부딪혀 상해를 입는 것을 방지할 수 있다. According to an embodiment of the present invention, when the vehicle collides with the eccentric front, for example, when the front of the vehicle forms an angle with respect to the collision obstacle and a part of the front collides with the collision obstacle, the head of the passenger is The movement to the impact side can be prevented to prevent the passenger's head from moving into the gap between the side curtain airbag and the front airbag while rotating. As a result, the head of the passenger can be prevented from being injured by hitting an internal structure of the vehicle, for example, a door panel or an instrument panel.
본 발명의 일 실시 예를 따르면, 자동차의 편심 정면 충돌 시, 승객의 두부와 에어백의 정면과의 마찰력에 의해 승객의 두부가 회전하면서 이동하는 것을 방지하여 승객의 목 상해치를 효과적으로 감소시킬 수 있다. According to one embodiment of the present invention, in the case of an eccentric frontal collision of the vehicle, the head of the passenger may be prevented from moving while rotating by the frictional force between the head of the passenger and the front of the airbag, thereby effectively reducing the neck injury of the passenger.
도 1은 본 발명의 일 실시 예를 따른 자동차의 정면 에어백이 팽창된 상태를 도시한 사시도이다. 1 is a perspective view showing an inflated front airbag of a vehicle according to an embodiment of the present invention.
도 2는 본 발명의 일 실시 예를 따른 자동차의 정면 에어백이 팽창된 상태를 도시한 정면도이다.2 is a front view illustrating a state in which the front airbag of the vehicle is inflated according to an embodiment of the present invention.
도 3은 도 1의 Ⅲ표시부의 확대도이다.FIG. 3 is an enlarged view of the III display unit of FIG. 1.
도 4는 본 발명의 일 실시 예를 따른 자동차의 정면 에어백의 전개도이다.4 is an exploded view of a front airbag of a vehicle according to an embodiment of the present invention.
도 5는 도 4의 Ⅴ표시부의 확대도이다. FIG. 5 is an enlarged view of the V display unit of FIG. 4.
도 6은 도 5의 선Ⅵ-Ⅵ을 따라 취해진 단면도이다. FIG. 6 is a cross-sectional view taken along the line VI-VI of FIG. 5.
도 7은 본 발명의 일 실시 예를 따른 에어백의 동작에 대한 이해를 돕기 위하여 자동차의 좌측 경사 충돌 상태를 도시한 도면이다. FIG. 7 is a view illustrating a left inclined collision state of a vehicle to help understand the operation of an airbag according to an embodiment of the present disclosure.
도 8은 본 발명의 일 실시 예를 따른 팽창된 에어백의 정면에 승객의 두부가 초기 접촉한 상태를 도시한 도면이다. FIG. 8 is a view illustrating a state in which the head of the passenger initially contacts the front of the inflated airbag according to an embodiment of the present invention.
도 9는 본 발명의 일 실시 예를 따른 팽창된 에어백의에 승객의 두부가 충돌 후 두부 구속부에 의해 승객의 두부가 캐치된 상태를 도시한 도면이다. FIG. 9 is a view illustrating a state in which the head of the passenger is caught by the head restraint after the head of the passenger collides with the inflated airbag according to one embodiment of the present invention.
도 10은 본 발명의 다른 실시 예를 따른 자동차의 에어백이 팽창된 상태를 도시한 정면도이다. 10 is a front view illustrating an inflated airbag of a vehicle according to another embodiment of the present invention.
도 11은 본 발명의 또 다른 실시 예를 따른 자동차의 에어백의 구성을 도시한 사시도이다.11 is a perspective view showing the configuration of an airbag of a vehicle according to another embodiment of the present invention.
도 12는 도 11의 선 ⅩⅡ-ⅩⅡ를 따라 취해진 단면도이다.12 is a cross-sectional view taken along the line XII-XII of FIG.
도 13은 본 발명의 일 실시 예를 따른 두부 구속부의 보조 패널이 완전히 펼쳐진 상태를 도시한 도면이다. FIG. 13 is a view illustrating a state in which the auxiliary panel of the head restraint part is fully unfolded according to an embodiment of the present invention. FIG.
도 14는 본 발명의 다른 실시 예를 따른 에어백의 정면을 도시한 도면이다.14 is a front view of an airbag according to another exemplary embodiment of the present invention.
도 15는 도 14의 두부구속부의 보조 패널이 완전히 펼쳐진 상태를 도시한 도면이다. FIG. 15 is a view illustrating a state in which the auxiliary panel of the head restraint part of FIG. 14 is fully unfolded.
도 16은 본 발명의 또 다른 실시 예를 따른 에어백의 정면을 도시한 도면이다. 16 is a front view of an airbag according to another embodiment of the present invention.
도 17은 도 16의 두부구속부의 보조 패널이 완전히 펼쳐진 상태를 도시한 도면이다. 17 is a view illustrating a state in which the auxiliary panel of the head restraint part of FIG. 16 is fully unfolded.
이하, 첨부된 도면을 참조하여 본 발명의 실시 예를 더욱 상세히 설명하기로 한다. 그러나 본 발명은 이하에서 개시되는 실시 예에 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 것이며, 단지 본 실시 예들은 본 발명의 개시가 완전하도록 하며, 통상의 지식을 가진 자에게 발명의 범주를 완전하게 알려주기 위해 제공되는 것이다.Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention in more detail. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms, and only the embodiments are intended to complete the disclosure of the present invention and to those skilled in the art to fully understand the scope of the invention. It is provided to inform you.
에어백 장치는 차량 충돌 시, 승객의 상해를 감소 또는 최소화시키기 위하여 폭넓게 이용된다. 에어백 장치 차량내의 다양한 위치에 설치될 수 있다. 본 발명의 일 실시 예를 따르면 에어백 장치는 조수석측 인스트루먼트 패널에 설치된다. 본 발명의 다른 실시 예로 에어백 장치는 운전석측 스티어링 휠에 설치될 수 있다. Airbag devices are widely used to reduce or minimize passenger injuries in vehicle crashes. The airbag device can be installed at various locations in the vehicle. According to an embodiment of the present invention, the airbag device is installed in the passenger seat side instrument panel. In another embodiment of the present invention, the airbag device may be installed in the driver's side steering wheel.
도 1은 본 발명의 일 실시 예를 따른 자동차의 정면 에어백이 팽창된 상태를 도시한 사시도이고, 도 2는 본 발명의 일 실시 예를 따른 자동차의 정면 에어백이 팽창된 상태를 도시한 정면도이다.1 is a perspective view showing an inflated front airbag of a vehicle according to an embodiment of the present invention, Figure 2 is a front view showing a front airbag inflated state according to an embodiment of the present invention.
도 1 및 도 2를 참조하면, 에어백 장치(1)는 에어백(10), 에어백(10)내에 가스를 공급하는 인플레이터(3), 두부 구속부(30), 개폐 유닛(50), 충돌 감지 유닛(70), 및 제어기(90)를 포함할 수 있다. 1 and 2, the airbag device 1 includes an airbag 10, an inflator 3 for supplying gas into the airbag 10, a head restraint unit 30, an opening and closing unit 50, and a collision detection unit. 70, and controller 90.
미전개 상태에서 에어백 장치(1)는 패키징되어 차량의 전방에 배치된 인스트루먼트패널(5)안에 장착되도록 구성될 수 있다.In the undeveloped state, the airbag device 1 may be configured to be packaged and mounted in the instrument panel 5 disposed in front of the vehicle.
에어백(10)은 승객과 마주하는 정면(11), 정면(11)의 양측에 구비된 측면(12,13), 정면(11)과 마주하는 후면(14), 측면의 상, 하부에 구비된 상, 하면(15,16)으로 구성되어 그 내부에 인플레이터(3)로부터의 가스가 공급되는 메인 팽창 공간(A1)이 한정된다. The airbag 10 includes a front face 11 facing passengers, side surfaces 12 and 13 provided at both sides of the front face 11, a rear face 14 facing the front face 11, upper and lower sides The main expansion space A1, which is composed of the upper and lower surfaces 15 and 16 and is supplied with the gas from the inflator 3, is defined therein.
두부 구속부(30)는 에어백(10)의 메인 팽창 공간(A1)과 연통하는 보조 팽창 공간(A2)을 한정하도록 구성된다. 두부 구속부(30)는 자동차의 편심 정면 충돌이 발생했을 경우, 승객(O)의 두부가 편심 정면 충돌이 발생된 부분으로 이동하여 회전하는 것을 방지한다. The head restraint 30 is configured to define an auxiliary inflation space A2 in communication with the main inflation space A1 of the airbag 10. The head restraint unit 30 prevents the head of the passenger O from moving and rotating to the portion where the eccentric frontal collision occurs when the eccentric frontal collision of the vehicle occurs.
편심 정면 충돌은 충돌 장애물이 자동차의 일측으로 편중되어 충돌하는 모든 경우를 포함할 수 있다. 즉, 자동차의 폭 방향을 따르는 방향으로 자동차의 정면의 외측에서 부분적으로 충돌하는 것을 포함할 수 있다. 편심 정면 충돌은 충돌 장애물에 대하여 기울어짐 없이 정면으로 충돌하거나, 충돌 장애물에 대하여 소정각도로 충돌하는 것을 포함할 수 있다. Eccentric frontal collisions may include all cases in which the collision obstacle is biased toward one side of the vehicle and collides. That is, it may include partially colliding from the outside of the front of the vehicle in the direction along the width direction of the vehicle. Eccentric frontal collisions may include colliding forwards without tilting against the collision obstacles, or crashing at a predetermined angle against the collision obstacles.
예를 들면, 편심 정면 충돌은 자동차의 폭 방향을 따르는 방향으로 자동차의 정면의 외측의 40%미만의 부분에 충돌하는 것을 포함할 수 있으며, 충돌 장애물에 대하여 소정각도, 예를 들면 15도 미만으로 충돌하는 것을 포함할 수 있다. For example, eccentric frontal collisions may include impacting less than 40% of the outside of the front of the vehicle in a direction along the width direction of the vehicle, with a predetermined angle, for example less than 15 degrees, relative to the collision obstacle. It may include conflicting.
편심 정면 충돌은 예를 들면, 자동차의 정면 좌측이 충돌 장애물에 대하여 소정각도로 기울고, 자동차의 정면 좌측의 일부가 충돌 장애물과 중첩되어 충격(이하 “좌측 충격(left side impact)”이라 칭함)이 가해지는 경우를 포함한다. An eccentric frontal collision is, for example, when the front left side of the vehicle is inclined at a predetermined angle with respect to the collision obstacle, and a part of the front left side of the vehicle overlaps with the collision obstacle so that an impact (hereinafter referred to as "left side impact") It includes the case where it is added.
편심 정면 충돌은 자동차의 정면 우측이 충돌 장애물에 대하여 소정 각도로 기울고, 자동차의 정면 우측의 일부가 충돌 장애물과 중첩되어 충격(이하, “우측 충격(right side impact)”라 칭함)이 가해지는 경우를 포함한다. Eccentric frontal collision is when the front right side of the vehicle is inclined at a predetermined angle with respect to the collision obstacle, and a part of the front right side of the vehicle overlaps with the collision obstacle and an impact is applied (hereinafter referred to as “right side impact”). It includes.
예를 들면, 좌측 충격이 가해질 경우, 승객(0)의 두부는 횡방향 선외 속도(laterally outboard velocity)로 에어백(10)의 중앙 또는 중앙-좌측에 접촉하고 측면 커튼 에어백(미도시)를 향하여 편향된다. 본원 발명의 일 실시 예를 따르는 두부 구속부(30)는 에어백(10)의 정면(11)으로부터 승객(O)을 향하여 돌출되어 승객(O)의 두부(H)가 에어백(10)의 정면(11)을 비스듬히 맞고 튕기면서(glance off) 좌측으로 이동하는 것을 저지하고, 승객(O)의 두부(H)로부터 충돌력이 가해질 경우 변형되어 승객의 두부(H)를 글러브 형태로 캐치한다. 따라서, 승객(O)의 두부 또는 목의 상해치를 감소시킬 수 있다. For example, in the event of a left impact, the head of the passenger 0 contacts the center or center-left side of the airbag 10 at a laterally outboard velocity and deflects toward a side curtain airbag (not shown). do. Head restraint 30 according to an embodiment of the present invention protrudes toward the passenger (O) from the front 11 of the airbag 10 so that the head (H) of the passenger (O) front ( 11) to obliquely move and glance off to prevent the movement to the left, and when a collision force is applied from the head (H) of the passenger (O) is deformed to catch the head (H) of the passenger in the form of a glove. Therefore, the injury value of the head or neck of the passenger O can be reduced.
두부 구속부(30)는 에어백(10)의 정면(11)에 형성된 연통홀(11a)을 통하여 에어백(10)의 메인 팽창 공간(A1)과 연통한다. 연통홀(11a)은 개폐 유닛(50)을 통하여 개폐 가능하도록 구성될 수 있다. 자동차의 정면 충돌 감지 유닛(70)를 통하여 자동차의 좌측 충돌이 감지되면, 정면 충돌 감지 유닛(70)으로부터 신호를 전달 받은 제어기(90)는 개폐 유닛(50)을 동작시켜 연통홀(11a)을 개방한다. 개폐유닛(50)에 의해 연통홀(11a)은 다양한 충돌 시나리오에 따라 개방하거나 폐쇄되어 두부 구속부(30)를 선택적으로 팽창하도록 한다. The head restraint part 30 communicates with the main inflation space A1 of the airbag 10 through a communication hole 11a formed in the front face 11 of the airbag 10. The communication hole 11a may be configured to be opened and closed through the opening and closing unit 50. When a left collision of the vehicle is detected through the front collision detection unit 70 of the vehicle, the controller 90 receiving a signal from the front collision detection unit 70 operates the opening / closing unit 50 to open the communication hole 11a. Open. The communication hole 11a is opened or closed by the opening / closing unit 50 to selectively expand the head restraint 30 according to various collision scenarios.
예를 들면, 개폐유닛(50)은 좌측 충격이 가해지는 경우 동작하여 연통홀(11a)을 개방하여 두부 구속부(30)가 팽창된다. For example, the opening and closing unit 50 is operated when the left impact is applied to open the communication hole (11a) to expand the head restraint portion 30.
정면 충돌 감지 유닛(70)은 다양한 충돌 시나리오에 관한 정보를 기초로 충돌 상태를 판단하는 것으로서, 예를 들면, 좌측 충격 및 우측 충격을 각각 감지하도록 자동차의 전방에 장착된 복수의 센서를 포함할 수 있다. The front collision detecting unit 70 determines a collision state based on information about various collision scenarios, and may include, for example, a plurality of sensors mounted at the front of the vehicle to detect left shock and right shock, respectively. have.
도 3은 도 1의 Ⅲ표시부를 도시한 확대도이다. FIG. 3 is an enlarged view illustrating the III display unit of FIG. 1.
도 1 및 도 3을 참조하면, 개폐 유닛(50)은 에어백(10) 팽창력에 의해 인장되어 에어백(10)의 정면(11)에 형성된 연통홀(11a)을 폐쇄시키도록 일단이 연통홀(11a)측에 배치되고 타측이 대략 에어백(10)의 후면(14)측에 고정된 인장부재(51)와 경사 충돌 시 작동되어 인장부재(51)를 절단하도록 구성된 커터(53)를 포함한다. 1 and 3, the opening / closing unit 50 is tensioned by the airbag 10 inflation force so that one end thereof communicates with the communication hole 11a formed in the front face 11 of the airbag 10. And a cutter 53 disposed at the side and operated at an oblique collision with the tension member 51 fixed at the rear side 14 side of the airbag 10 to cut the tension member 51.
연통홀(11a)측에는 예컨대, 대략 절두형 원뿔형의 벤트 튜브(55)가 연결되고, 인장부재(51)의 일단이 벤트튜브(55)의 원단측을 개폐 가능하도록 연결될 수 있다. 다른 실시 예로, 연통홀(11a)은 에어백(10)의 정면(11)의 내면을 따라 슬라이딩 가능한 차폐패널에 의해 개폐되도록 구성될 수 있다. For example, an approximately truncated conical vent tube 55 may be connected to the communication hole 11a, and one end of the tension member 51 may be connected to open and close the distal end of the vent tube 55. In another embodiment, the communication hole 11a may be configured to be opened and closed by a shielding panel slidable along the inner surface of the front face 11 of the airbag 10.
이러한 구성으로 에어백(10)의 메인 팽창 공간(A1)으로 가스가 주입되어 에어백(10)이 팽창하면 인장부재(51)가 인장되어 벤트 튜브(55)의 원단부(distal end)는 폐쇄 상태를 이룬다. In this configuration, when the gas is injected into the main expansion space A1 of the airbag 10 and the airbag 10 is inflated, the tension member 51 is tensioned so that the distal end of the vent tube 55 is closed. Achieve.
한편, 정면 충돌 감지 유닛(70)을 통하여 편심 정면 충돌이 감지된 경우 커터(53)가 동작되어 인장부재(51)를 절단하여 인장부재(51)의 인장력이 해제된다. 그 결과, 메인 팽창 공간(A1)내의 가스압력에 벤트 튜브(55)의 원단의 폐쇄상태가 해제되어 메인 팽창 공간(A1) 내의 가스는 연통홀(11a)을 통하여 두부 구속부(30) 내의 보조 팽창 공간(A2)으로 가스가 흐른다. On the other hand, when the eccentric frontal collision is detected through the frontal collision detection unit 70, the cutter 53 is operated to cut the tensioning member 51 to release the tension of the tensioning member 51. As a result, the closed state of the distal end of the vent tube 55 is released by the gas pressure in the main expansion space A1 so that the gas in the main expansion space A1 is assisted in the head restraint portion 30 through the communication hole 11a. Gas flows into the expansion space A2.
인장부재(51)는 에어백(10)의 재질과 동일한 재질로 형성된 띠형 부재, 절단 가능한 줄형 부재, 체인 등 다양한 형태를 포함할 수 있다. The tension member 51 may include various shapes such as a band member, a cutable strip member, and a chain formed of the same material as the material of the airbag 10.
도 4는 본 발명의 일 실시 예를 따른 자동차의 정면 에어백의 전개도이다.4 is an exploded view of a front airbag of a vehicle according to an embodiment of the present invention.
도 1 및 도 4를 참조하면, 본원 발명의 일 실시 예로 에어백(10)의 정면(11), 후면(14), 하면(16)을 구성하는 제1패널(P1)과, 에어백(10)의 측면(12,13)을 구성하는 제2,3패널(P2, P3)과, 에어백(10)의 상면(15)을 구성하는 제4패널(P4)을 서로 연결하여 그 내부에 메인 팽창 공간(A1)을 갖도록 형성된다. 1 and 4, an embodiment of the present invention includes a first panel P1 constituting the front 11, the rear 14, and the bottom 16 of the airbag 10 and an airbag 10. The second and third panels P2 and P3 constituting the side surfaces 12 and 13 and the fourth panel P4 constituting the upper surface 15 of the airbag 10 are connected to each other to form a main expansion space ( It is formed to have A1).
에어백(10)은 이와 같이 4개의 패널로 구성되는 것 이외에도, 단일의 패널, 또는 4개 이상의 패널 등 다양한 패널구조로 구성될 수 있다. The airbag 10 may be configured in various panel structures, such as a single panel or four or more panels, in addition to the four panels.
제1패널(P1)의 에어백(10)의 후면(14)을 구성하는 부분에는 인플레이터홀(14a)이 형성되어 인플레이터(3)로부터 발생된 가스가 에어백(10)의 메인 팽창 공간(A1)내로 공급되도록 한다. An inflator hole 14a is formed in a portion constituting the rear surface 14 of the airbag 10 of the first panel P1 so that gas generated from the inflator 3 flows into the main expansion space A1 of the airbag 10. To be supplied.
에어백(10)의 측면(12,13)을 구성하는 제2,3패널(P2, P3)에는 벤트홀(12a, 13a)이 형성된다. 벤트홀(12a, 13a)은 팽창된 에어백에 승객이 접촉할 경우, 승객을 부드럽게 수용하도록 에어백(10)의 메인 팽창 공간(A1)의 가스를 외부로 배출되는 것을 허용하여 승객(O)이 에어백(10)의 팽창력에 의해 상해를 입는 것을 방지한다. Vent holes 12a and 13a are formed in the second and third panels P2 and P3 constituting the side surfaces 12 and 13 of the airbag 10. The vent holes 12a and 13a allow gas to be discharged to the outside of the main inflation space A1 of the airbag 10 to smoothly receive the passenger when the inflated airbag contacts the passenger. Injury caused by the expansion force of (10) is prevented.
제1패널(P1)의 에어백(10)의 정면(11)을 구성하는 부분에는 두부 구속부(30)를 형성하는 보조패널(31)이 연결된다. An auxiliary panel 31 forming the head restraint 30 is connected to a portion constituting the front 11 of the airbag 10 of the first panel P1.
도 5는 도 4의 Ⅴ표시부의 확대도이고, 도 6은 도 5의 선Ⅵ-Ⅵ을 따라 취해진 단면도이다. 5 is an enlarged view of the V display part of FIG. 4, and FIG. 6 is a cross-sectional view taken along the line VI-VI of FIG. 5.
도 5 및 도 6을 참조하면, 보조패널(31)은 재봉라인(S1)을 통하여 그 둘레가 에어백(10)의 정면(11)에 연결된다. 보조 패널(31)은 그 중간부에 여러 번 접힌 주름부(33)를 갖는다. 이와 같이 주름부(33)가 형성된 상태에서 보조패널(31)의 가장 자리는 재봉라인(S3)을 통하여 에어백(10)의 정면(11)과 연결된다. 이와 같이 보조패널(31)의 가장자리를 따라 형성된 재봉라인(S3)에 의해 에어백(10)의 정면(11) 외측에 보조 팽창 공간(A2)이 한정된다. 5 and 6, the auxiliary panel 31 is connected to the front face 11 of the airbag 10 through a sewing line S1. The auxiliary panel 31 has a corrugation portion 33 that is folded several times in the middle portion thereof. As described above, the edge of the auxiliary panel 31 is connected to the front face 11 of the airbag 10 through the sewing line S3 in the state in which the wrinkle part 33 is formed. In this way, the auxiliary expansion space A2 is defined outside the front face 11 of the airbag 10 by the sewing line S3 formed along the edge of the auxiliary panel 31.
벤트 튜브(55)는 절두형 콘형태로 형성되어 인장부재(51)의 인장 시 그 원단부가 폐쇄되도록 형성될 수 있다. 인장부재(51)의 에어백(10)의 초기 팽창 시. 벤트 튜브(55)의 원단부(55a)를 조이는 상태로 연결된다. 벤트 튜브(55)의 원단부(55a)는 에어백(10)의 메인 팽창 공간(A1)내에 에어백(10)의 초기 전개 시에는 인장부재(51)의 인장력에 의해 더욱 세게 조여지게 된다. The vent tube 55 may be formed in a truncated cone shape so that its distal end is closed when the tension member 51 is tensioned. Upon initial inflation of the airbag 10 of the tension member 51. The distal end 55a of the vent tube 55 is connected in a tightening state. The distal end portion 55a of the vent tube 55 is tightened more firmly by the tension force of the tension member 51 at the initial deployment of the airbag 10 in the main inflation space A1 of the airbag 10.
한편, 편심 정면 충돌로 판단된 경우, 커터(53)가 동작되어 인장부재(51)를 절단하면, 인장부재(51)의 인장력이 해제되고, 에어백(10)의 메인 팽창 공간(A1)에 채워진 가스압에 의해 벤트튜브(55)의 원단부(55a)는 벤트튜브(55)의 근단부(55b)를 중심으로 뒤집어져 보조 팽창 공간 (A2)에 위치하고 연통홀(11a)이 개방된다. 그 결과, 메인 팽창 공간(A1)의 가스는 보조 팽창 공간(A2)으로 흐를 수 있다. On the other hand, if it is determined that the eccentric frontal collision, when the cutter 53 is operated to cut the tension member 51, the tension force of the tension member 51 is released, and filled in the main inflation space A1 of the airbag 10 By the gas pressure, the distal end 55a of the vent tube 55 is inverted around the proximal end 55b of the vent tube 55 and positioned in the auxiliary expansion space A2 to open the communication hole 11a. As a result, the gas in the main expansion space A1 can flow into the auxiliary expansion space A2.
다음은 상술한 바와 같이 구성된 자동차의 에어백 장치의 동작 원리에 대해서 설명한다. Next, the operation principle of the airbag apparatus of the vehicle comprised as mentioned above is demonstrated.
도 7은 본 발명의 일 실시 예를 따른 에어백의 동작에 대한 이해를 돕기 위하여 자동차의 좌측 경사 충돌 상태의 일 예를 도시한 도면이다. FIG. 7 is a diagram illustrating an example of a left inclined collision state of a vehicle to help understand the operation of an airbag according to an embodiment of the present disclosure.
도 7을 참조하면, 자동차 충돌 시나리오의 일 예로 자동차는 충돌 장애물(8)에 대하여 일정 각도(θ°)로 자동차의 정면의 좌측의 일부가 충돌 장애물(8)과 중첩된 좌측 경사 충돌이 발생할 수 있다. Referring to FIG. 7, as an example of a vehicle collision scenario, a vehicle may have a left inclined collision in which a part of the left side of the front of the vehicle overlaps the collision obstacle 8 at an angle (θ °) with respect to the collision obstacle 8. have.
도 8은 본 발명의 일 실시 예를 따른 팽창된 에어백의 정면에 승객의 두부가 초기 접촉한 상태를 도시한 도면이다. FIG. 8 is a view illustrating a state in which the head of the passenger initially contacts the front of the inflated airbag according to an embodiment of the present invention.
도 1, 도 7 및 도 8을 참조하면, 자동차 충돌 시, 인플레이터(3)로부터 가스가 발생되고, 인플레이터(3)로부터 발생된 가스는 에어백(10)의 메인 팽창 공간(A1)내로 공급된다. 1, 7 and 8, in a vehicle crash, gas is generated from the inflator 3, and the gas generated from the inflator 3 is supplied into the main expansion space A1 of the airbag 10.
좌측 경사 충돌 시, 승객은 자동차의 전방 및 좌측을 향하여 이동하고, 승객(O)의 두부(H)는 팽창된 에어백(10)의 정면(11)의 중앙 또는 중앙-좌측에 비스듬히 부딪히면서 튕겨져 좌측으로 이동한다. 승객(O)의 두부(H) 및 에어백(10)의 정면(11)과의 사이의 마찰력에 의해 승객(O)의 두부(H)는 반 시계 방향으로 회전되면서 이동한다. In the left inclined collision, the passenger moves toward the front and left of the vehicle, and the head H of the passenger O is bounced obliquely at the center or center-left of the front 11 of the inflated airbag 10 to the left. Move. The head H of the passenger O moves while being rotated counterclockwise by the frictional force between the head H of the passenger O and the front face 11 of the airbag 10.
이때, 에어백(10)의 정면(11)의 좌측으로부터 두부 구속부(30)가 돌출되어 승객(O)의 두부(H)가 회전하면서 좌측으로 이동하는 것을 초기에 저지한다. At this time, the head restraint portion 30 protrudes from the left side of the front 11 of the airbag 10 to initially prevent the head H of the passenger O from moving to the left.
도 9는 본 발명의 일 실시 예를 따른 팽창된 에어백에 승객의 두부가 충돌 후 두부 구속부에 의해 승객의 두부가 캐치된 상태를 도시한 도면이다. 9 is a view showing a state in which the head of the passenger is caught by the head restraint after the head of the passenger hit the inflated airbag according to an embodiment of the present invention.
도 9를 참조하면, 두부 구속부(30)에 부딪히면서 1차적으로 이동이 저지된 승객(O)의 두부(H)는 두부 구속부(30)의 외면을 좌측으로 가압하면서 이동하여 두부 구속부(30)의 외면은 승객(O)의 두부(H)를 글러브 형태로 감싼다. Referring to FIG. 9, the head H of the passenger O, which is primarily prevented from moving by hitting the head restraint 30, moves while pressing the outer surface of the head restraint 30 to the left to restrain the head restraint ( The outer surface of 30) wraps the head H of the passenger O in the form of a glove.
그 결과, 승객(O)의 두부(H)는 좌측으로 이동되면서 회전되는 것이 저지되어 자동차의 측부 내부 구조물, 예컨대 자동차의 도어 프레임 등에 부딪히는 것을 방지할 수 있다. 따라서, 승객의 두부 또는 목부의 상해치를 감소시킬 수 있다. As a result, the head H of the passenger O is prevented from being rotated while being moved to the left, thereby preventing it from hitting the side internal structure of the vehicle, for example, the door frame of the vehicle. Therefore, the injury value of the head or neck of the passenger can be reduced.
도 10은 본 발명의 다른 실시 예를 따른 팽창된 에어백의 정면을 도시한 도면이다. 10 is a front view of the inflated airbag according to another embodiment of the present invention.
도 10을 참조하면, 에어백(10)의 정면(11)의 우측에 두부 구속부(40)가 추가로 구비된다. 두부 구속부(40)는 상술한 두부 구속부(30)와 실질적으로 동일한 구성을 가지므로 중복된 설명은 생략한다. Referring to FIG. 10, the head restraint part 40 is further provided on the right side of the front face 11 of the airbag 10. Since the head restraint 40 has a configuration substantially the same as that of the head restraint 30 described above, redundant description thereof will be omitted.
두부 구속부는 자동차의 좌측 충격 또는 우측 충격에 따라 선택적으로 팽창 전개되도록 구속될 수 있다. The head restraint may be restrained to selectively expand and deploy according to the left impact or the right impact of the vehicle.
이 경우 정면 충돌 감지 유닛(70)은 자동차의 좌측 충격 또는 우측 충격을 감지하도록 구성된다. 일 실시 예로 자동차의 정면 좌측에 좌측 충격을 감지하는 센서가 구비되고, 자동차의 정면 우측에 우측 충격을 감지하는 센서가 별도로 구비될 수 있다. In this case, the frontal collision detection unit 70 is configured to detect the left shock or the right shock of the vehicle. As an embodiment, a sensor for detecting a left shock may be provided at a front left side of the vehicle, and a sensor for detecting a right shock at the front right side of the vehicle may be provided separately.
우측 충격인 경우, 정면 충돌 감지 유닛(70)은 우측 충돌 상태를 감지하고, 제어기(90)는 이러한 신호를 전달받아 연통홀 벤트 유닛(50)을 동작시킨다. 연통홀 벤트 유닛(50)은 에어백(10)의 정면(11)의 우측 연통홀측이 개방되도록 동작되어 우측에 배치된 두부 구속부(40)가 팽창된다. In the case of the right impact, the front collision detection unit 70 detects the right collision state, and the controller 90 receives the signal to operate the communication hole vent unit 50. The communication hole vent unit 50 is operated to open the right communication hole side of the front face 11 of the airbag 10 so that the head restraint portion 40 disposed on the right side is expanded.
우측 충격 상태에서, 승객의 이동양상(kinematics)은 실질적으로 좌측 충격 상태의 대칭된 이동 양상 갖는다. In the right impact state, the kinematics of the passenger have a substantially symmetrical movement aspect in the left impact state.
우측 충격 상태에서는 승객은 에어백(10)의 정면(11)의 중앙 또는 중앙-우측에 비스듬히 충돌하면서 우측으로 이동한다. 이때, 에어백((10)의 우측에 구비된 두부 구속부(40)가 돌출되어 승객(0)의 두부(H)가 우측로 이동하는 것을 방지한다. 우측 경사 충돌 시, 초기에 승객은 자동차의 상측으로 이동하여 자동차의 루프에 부딪힐 수 있다. 이를 위하여 에어백(10)의 정면의 상부가 돌출되도록 하여 승객의 두부가 자동차의 루프와 접촉하는 것을 방지할 수 있다. In the right shock state, the passenger moves to the right while obliquely colliding with the center or the center-right side of the front face 11 of the airbag 10. At this time, the head restraint portion 40 provided on the right side of the airbag 10 protrudes to prevent the head H of the passenger 0 from moving to the right side. The upper part of the front of the airbag 10 may protrude to prevent the head of the passenger from contacting the roof of the vehicle.
본 발명을 따르면, 다양한 자동차 충돌 시나리오에 따라 두부 구속부(30,40)는 다양한 방식으로 팽창할 수 있다. 예를 들면, 자동차가 충돌 장애물에 대하여 좌우 어느 측으로도 편중되지 않고 순수 정면 충돌 할 경우, 두부 구속부(30,40) 둘 다 팽창하지 않고 에어백(10)의 메인 팽창 공간(A1)으로만 가스가 공급되도록 할 수 있다. According to the present invention, the head restraints 30 and 40 can expand in various ways in accordance with various vehicle crash scenarios. For example, if the car is in a pure frontal collision without being biased on either side to the collision obstruction, both head restraints 30 and 40 do not inflate, but only gas into the main inflation space A1 of the airbag 10. Can be supplied.
다른 실시 예로, 자동차가 충돌 장애물과 소정 각도를 이루고 자동차의 좌측으로 편중되어 중첩된 경우, 좌측 두부 구속부(30)이 팽창하고, 자동차가 충돌 장애물과 소정 각도를 이루고 자동차의 우측으로 편중되어 중첩된 경우 우측 두부 구속부(40)가 팽창하도록 구성될 수 있다. In another embodiment, when the vehicle forms a predetermined angle with the collision obstacle and is biased to the left side of the vehicle, the left head restraint 30 is inflated, and the vehicle forms the predetermined angle with the collision obstacle and is biased to the right side of the vehicle and overlaps. If so, the right head restraint 40 may be configured to expand.
또 다른 실시 예로, 자동차 정면 충돌 감지 시, 두부 구속부(30,40) 둘 다 팽창할 수 있다. In another embodiment, both head restraints 30 and 40 may expand when detecting a frontal collision of a vehicle.
도 11은 본 발명의 또 다른 실시 예를 따른 자동차의 에어백의 구성을 도시한 사시도이고, 도 12는 도 11의 선 ⅩⅡ-ⅩⅡ를 따라 취해진 단면도이다.11 is a perspective view showing the configuration of an airbag of a vehicle according to another embodiment of the present invention, Figure 12 is a cross-sectional view taken along the line XII-XII of FIG.
이하, 상술한 구성과 동일한 구성에 관해서는 동일 부호를 명기하며 중복된 설명은 생략한다.Hereinafter, the same components as those described above are denoted by the same reference numerals, and redundant descriptions are omitted.
도 11 및 도 12을 참조하면, 본 발명의 다른 실시 예를 따른 에어백을 따르면, 상술한 구성과 달리 에어백(10)의 정면(11)에 형성된 연통홀(11a)을 차단하는 밴트튜브(도 16참조)의 구성이 배제된다. 이 경우, 에어백(10) 팽창 시, 연통홀(11a)은 상시 개방된 상태를 이룬다. 따라서, 에어백(10)이 팽창하는 경우, 에어백(10)의 메인 팽창 공간(A1)으로 공급된 가스는 연통홀(11a)을 통해 보조 팽창 공간(A2)로 주입되어 에어백(10)의 정면(11)에서 승객을 향하여 돌출하는 추가 팽창부가 상시 형성된다. 11 and 12, according to an airbag according to another exemplary embodiment of the present disclosure, unlike the above-described configuration, a vent tube (FIG. 16) blocking the communication hole 11a formed in the front face 11 of the airbag 10 may be used. Configuration) is excluded. In this case, when the airbag 10 is inflated, the communication hole 11a is always open. Therefore, when the airbag 10 is inflated, the gas supplied to the main inflation space A1 of the airbag 10 is injected into the auxiliary inflation space A2 through the communication hole 11a, so that the front of the airbag 10 ( In 11) an additional expansion projecting towards the passenger is always formed.
다음은 보조패널의 다양한 구성에 관하여 설명한다. Next, various configurations of the auxiliary panel will be described.
도 13은 본 발명의 일 실시 예를 따른 두부 구속부의 보조 패널이 완전히 펼쳐진 상태를 도시한 도면이다. FIG. 13 is a view illustrating a state in which the auxiliary panel of the head restraint part is fully unfolded according to an embodiment of the present invention. FIG.
도 11 및 도 13을 참조하면, 보조패널(31)은 대략 직사각형 형상을 가지며, 그 중간에 다수의 폴딩 라인(F1)을 형성하여 주름부(31)를 갖는 보조패널(31)을 형성한다.Referring to FIGS. 11 and 13, the auxiliary panel 31 has a substantially rectangular shape, and a plurality of folding lines F1 are formed in the middle of the auxiliary panel 31 to form an auxiliary panel 31 having wrinkles 31.
이러한 보조패널(31)은 재봉라인(S3)을 통하여 에어백(10)의 정면(11)에 결합된 경우, 그 상, 하단의 가로 길이가 실질적으로 동일하다. When the auxiliary panel 31 is coupled to the front face 11 of the airbag 10 through the sewing line S3, the horizontal length of the upper and lower ends thereof is substantially the same.
도 14는 본 발명의 다른 실시 예를 따른 에어백의 정면을 도시한 도면이다. 도 15는 도 14의 두부구속부의 보조 패널이 완전히 펼쳐진 상태를 도시한 도면이다. 14 is a front view of an airbag according to another exemplary embodiment of the present invention. FIG. 15 is a view illustrating a state in which the auxiliary panel of the head restraint part of FIG. 14 is fully unfolded.
도 14 및 도 15를 참조하면, 보조패널(71)은 대략 사다리꼴 형상을 갖는다. 즉, 보조패널(71)은 서로 나란하게 배치된 상, 하변(71a, 71b)을 가지며, 그 상,하변(71a,71b)의 양단을 잇는 좌,우변(71c,71d)를 갖는다. 14 and 15, the auxiliary panel 71 has a substantially trapezoidal shape. That is, the auxiliary panel 71 has upper and lower sides 71a and 71b disposed in parallel with each other, and has left and right sides 71c and 71d connecting both ends of the upper and lower sides 71a and 71b.
보조패널(71)의 상변(71a)은 하변(71b)의 길이보다 짧아 상변(71a)의 일단 및 하변(7b)의 일단을 잇는 좌변(7c)은 상, 하변(71a, 71b)과 실질적으로 직교되고, 상변(71a)의 타단 및 하변(71b)의 타단을 잇는 우변(71d)은 상향 경사진다,The upper side 71a of the auxiliary panel 71 is shorter than the length of the lower side 71b so that the left side 7c connecting one end of the upper side 71a and one end of the lower side 7b is substantially upper and lower sides 71a and 71b. The right side 71d which is orthogonal to and connects the other end of the upper side 71a and the other end of the lower side 71b is inclined upward,
이러한 보조패널(71)의 중간에 보조패널(71)의 형상된 대응되게 배치되는 다수의 폴딩라인(F2)을 형성하여 주름부(73)를 갖는 보조패널(71)을 준비한다. 주름부(73)를 갖는 보조패널(71)을 재봉라인(S3)을 통하여 에어백(10)의 정면(11)에 결합하면 실질적으로 보조패널(71)의 하부에 연결된 부분의 길이가 보조 패널(71)의 상부에 결합된 길이보다 길다. In the middle of the auxiliary panel 71 is formed a plurality of folding lines (F2) correspondingly arranged in the shape of the auxiliary panel 71 to prepare the auxiliary panel 71 having a wrinkle portion (73). When the auxiliary panel 71 having the pleats 73 is coupled to the front face 11 of the airbag 10 through the sewing line S3, the length of the portion connected to the lower portion of the auxiliary panel 71 is substantially reduced. 71) longer than the length coupled to the top.
이 경우, 자동차의 충돌로 인해 에어백(10)의 정면(11)에 충돌하는 승객의 두부가 자동차의 측부 및 하부를 향하여 급격히 이동하는 경우 효과적으로 승객의 두부를 저지하면서 캐치할 수 있다. In this case, when the head of the passenger that collides with the front 11 of the airbag 10 due to the collision of the vehicle moves rapidly toward the side and the bottom of the vehicle, it is possible to catch while effectively restraining the head of the passenger.
도 16은 본 발명의 또 다른 실시 예를 따른 에어백의 정면을 도시한 도면이고, 도 17은 도 16의 두부구속부의 보조 패널이 완전히 펼쳐진 상태를 도시한 도면이다. FIG. 16 is a view showing the front of an airbag according to another embodiment of the present invention, and FIG. 17 is a view showing a state in which the auxiliary panel of the head restraint part of FIG. 16 is fully deployed.
도 16 및 도 17의 보조패널(81)은 상술한 도 14 및 도 15의 보조패널(71)에 대하여 가로방향으로 대칭된 형상을 갖는다. 따라서, 그 구체적 구성 및 기능은 위의 보조패널(71)과 유사하므로 중복된 설명은 생략한다. The auxiliary panel 81 of FIGS. 16 and 17 has a shape symmetrical in the transverse direction with respect to the auxiliary panel 71 of FIGS. 14 and 15 described above. Therefore, since its specific configuration and function is similar to the sub-panel 71 above, redundant description thereof will be omitted.
보조패널(81)을 채용한 경우 에어백(10)의 정면(11)에 결합 시, 실질적으로 보조패널(81)의 상부에 연결된 부분의 길이가 보조패널(81)의 하부에 연결된 길이보다 길다. When the auxiliary panel 81 is employed, when coupled to the front 11 of the airbag 10, the length of the portion connected to the upper portion of the auxiliary panel 81 is substantially longer than the length connected to the lower portion of the auxiliary panel 81.
이 경우, 자동차의 충돌로 인해 에어백(10)의 정면(11)에 충돌하는 승객의 두부가 자동차의 측부 및 상부를 향하여 급격히 이동하는 경우 효과적으로 승객의 두부를 저지하면서 캐치할 수 있다. In this case, when the head of the passenger that collides with the front 11 of the airbag 10 due to the collision of the vehicle moves rapidly toward the side and the top of the vehicle, it is possible to catch while effectively restraining the head of the passenger.
보조패널은 상술한 직사각형, 사다리형상 이외에도 다양한 형태로 변형 가능하다. 한편, 상술한 바와 같은 보조패널은 에어백(10)의 정면(11)의 모든 임의의 위치로 결합될 수 있다, 즉, 다양한 충돌 시나리오에 따라 보조패널의 결합위치는 다양하게 변경될 수 있다. The auxiliary panel may be modified in various forms in addition to the rectangular and ladder shapes described above. On the other hand, the auxiliary panel as described above may be combined at any arbitrary position of the front 11 of the airbag 10, that is, the coupling position of the auxiliary panel may be variously changed according to various collision scenarios.
본 발명을 첨부 도면과 전술된 바람직한 실시 예를 참조하여 설명하였으나, 본 발명은 그에 한정되지 않으며, 후술하는 특허청구범위에 의해 한정된다. 따라서, 본 기술분야의 통상의 지식을 가진 자라면 후술하는 특허청구범위의 기술적 사상에서 벗어나지 않는 범위 내에서 본 발명을 다양하게 변형 및 수정할 수 있다.Although the present invention has been described with reference to the accompanying drawings and the preferred embodiments described above, the present invention is not limited thereto, and is defined by the following claims. Accordingly, one of ordinary skill in the art may variously modify and modify the present invention without departing from the spirit of the appended claims.

Claims (7)

  1. 메인 팽창 공간을 한정하며 팽창 시 승객을 향하는 정면을 갖는 에어백; 및 An airbag defining a main inflation space and having a front facing the passenger upon inflation; And
    상기 에어백의 상기 정면으로부터 돌출되어 자동차의 정면의 폭 방향을 따르는 외측의 소정 부분에 충격이 가해지는 편심 정면 충돌이 발생할 경우, 상기 에어백의 상기 정면에 충돌하는 승객의 두부가 상기 충돌측으로 이동하는 것을 저지하고, 상기 승객의 상기 두부의 충돌력에 의해 변형되어 상기 승객의 상기 두부를 캐치하도록 구성된 적어도 하나의 두부 구속부를 포함하는 자동차의 전방 에어백 장치.When an eccentric frontal collision that protrudes from the front of the airbag and impacts a predetermined portion on the outside along the width direction of the front of the vehicle occurs, the head of a passenger that collides with the front of the airbag moves toward the collision side. And at least one head restraint configured to intercept and deform by the impact force of the head of the passenger to catch the head of the passenger.
  2. 제1항에 있어서, 상기 두부 구속부는 상기 에어백의 상기 정면 외측에 연결되어 상기 메인 팽창 공간과 연통하는 보조 팽창 공간을 형성하는 보조 패널에 의해 한정되고, The apparatus of claim 1, wherein the head restraint portion is defined by an auxiliary panel connected to the front outer side of the airbag to form an auxiliary expansion space in communication with the main expansion space,
    상기 보조 패널은 비 팽창상태에서 주름진 상태로 상기 에어백의 상기 정면에 그 가장 자리가 재봉라인에 연결된 자동차의 전방 에어백 장치. And the auxiliary panel is corrugated in a non-inflated state and the front airbag device of the vehicle, the edge of which is connected to a sewing line at the front of the airbag.
  3. 제2항에 있어서, 상기 에어백의 상기 정면에는 상기 메인 팽창 공간과 상기 보조 팽창 공간을 연통하는 적어도 하나의 연통홀이 형성된 자동차의 전방 에어백 장치. The vehicle front airbag apparatus of claim 2, wherein at least one communication hole is formed at the front surface of the airbag to communicate the main expansion space and the auxiliary expansion space.
  4. 제3항에 있어서, 상기 편심 정면 충돌을 판단하는 적어도 하나의 정면 충돌 감지 유닛; 및 4. The apparatus of claim 3, further comprising: at least one frontal collision detection unit for determining the eccentric frontal collision; And
    상기 충돌 감지 유닛에 의하여 상기 편심 정면 충돌이 판단된 경우, 상기 연통홀을 개방하도록 구성된 개폐 유닛을 더 포함하는 자동차의 전방 에어백 장치. And an opening / closing unit configured to open the communication hole when the eccentric frontal collision is determined by the collision detecting unit.
  5. 제4항에 있어서, 상기 개폐 유닛은 상기 에어백의 메인 팽창 공간 내로 가스 주입 시 인장되어 상기 연통홀을 폐쇄하는 인장부재; 및According to claim 4, The opening and closing unit is a tension member that is tensioned when the gas injection into the main expansion space of the air bag to close the communication hole; And
    상기 정면 충돌 감지 유닛에 의하여 상기 편심 정면 충돌이 판단된 경우 상기 인장부재를 절단하여 상기 연통홀을 개방되도록 하는 커터를 포함하는 자동차의 전방 에어백 장치. And a cutter for cutting the tension member to open the communication hole when the eccentric frontal collision is determined by the frontal collision detection unit.
  6. 제4항에 있어서, 상기 두부 구속부는 상기 에어백의 상기 정면의 좌측 및 우측에 구비되고, According to claim 4, The head restraints are provided on the left and right of the front of the airbag,
    상기 정면 충돌 감지 유닛은 상기 자동차의 좌측 편심 정면 충돌 또는 우측 편심 정면 충돌을 판단하도록 구성되고, The frontal collision detection unit is configured to determine a left eccentric frontal collision or a right eccentric frontal collision of the vehicle,
    상기 좌측 편심 정면 충돌 또는 상기 우측 편심 정면 충돌 감지 상태에 따라 상기 개폐 유닛에 의하여 상기 에어백의 상기 정면의 좌측에 구비된 연통홀 또는 상기 에어백의 상기 정면의 우측에 구비된 연통홀이 개방되도록 구성된 자동차의 전방 에어백 장치. A vehicle configured to open a communication hole provided at the left side of the front side of the airbag or a communication hole provided at the right side of the front side of the airbag by the opening and closing unit according to the left eccentric frontal collision or the right eccentric frontal collision detection state. Front airbag device.
  7. 제2항에 있어서, 상기 주름진 상태로 상기 에어백의 상기 정면에 상기 재봉라인에 연결된 상기 보조 패널의 상, 하변의 가로 길이는 서로 상이하게 구성된 자동차의 전방 에어백 장치. The front airbag apparatus of claim 2, wherein horizontal lengths of upper and lower sides of the auxiliary panel connected to the sewing line on the front side of the airbag in the corrugated state are different from each other.
PCT/KR2017/001890 2016-02-22 2017-02-21 Front airbag device of automobile WO2017146439A1 (en)

Applications Claiming Priority (2)

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KR1020160020385A KR101781381B1 (en) 2016-02-22 2016-02-22 Frontal airbag apparatus for vehicle
KR10-2016-0020385 2016-02-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10773677B1 (en) 2016-06-02 2020-09-15 Cyclazoom Llc Airbag system with overlapping airbags

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006256508A (en) * 2005-03-17 2006-09-28 Nippon Plast Co Ltd Airbag device for vehicle
KR20150134790A (en) * 2014-05-23 2015-12-02 현대모비스 주식회사 Airbag Module
US9227587B1 (en) * 2015-01-26 2016-01-05 Ford Global Technologies, Llc Vehicle oblique impact absorbing system
KR20160009967A (en) * 2014-07-17 2016-01-27 현대모비스 주식회사 Passenger Airbag Apparatus
KR20160017997A (en) * 2014-08-07 2016-02-17 현대모비스 주식회사 Passenger Airbag Aparatus Of Vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006256508A (en) * 2005-03-17 2006-09-28 Nippon Plast Co Ltd Airbag device for vehicle
KR20150134790A (en) * 2014-05-23 2015-12-02 현대모비스 주식회사 Airbag Module
KR20160009967A (en) * 2014-07-17 2016-01-27 현대모비스 주식회사 Passenger Airbag Apparatus
KR20160017997A (en) * 2014-08-07 2016-02-17 현대모비스 주식회사 Passenger Airbag Aparatus Of Vehicle
US9227587B1 (en) * 2015-01-26 2016-01-05 Ford Global Technologies, Llc Vehicle oblique impact absorbing system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10773677B1 (en) 2016-06-02 2020-09-15 Cyclazoom Llc Airbag system with overlapping airbags

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