WO2017171334A1 - Rideau gonflable latéral sur une automobile - Google Patents

Rideau gonflable latéral sur une automobile Download PDF

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Publication number
WO2017171334A1
WO2017171334A1 PCT/KR2017/003282 KR2017003282W WO2017171334A1 WO 2017171334 A1 WO2017171334 A1 WO 2017171334A1 KR 2017003282 W KR2017003282 W KR 2017003282W WO 2017171334 A1 WO2017171334 A1 WO 2017171334A1
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WO
WIPO (PCT)
Prior art keywords
curtain airbag
vehicle
airbag
inner panel
head
Prior art date
Application number
PCT/KR2017/003282
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English (en)
Korean (ko)
Inventor
정대창
권태익
Original Assignee
아우토리브 디벨롭먼트 아베
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Publication of WO2017171334A1 publication Critical patent/WO2017171334A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—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
    • 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
    • B60R21/232—Curtain-type airbags deploying mainly in a vertical direction from their top edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/2334—Expansion control features
    • B60R21/2338—Tethers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/235—Inflatable members characterised by their material
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/2334—Expansion control features
    • B60R21/2338—Tethers
    • B60R2021/23382—Internal tether means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—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
    • B60R21/235—Inflatable members characterised by their material
    • B60R2021/23533—Inflatable members characterised by their material characterised by the manufacturing process
    • B60R2021/23538—Sewing

Definitions

  • the present invention relates to a side curtain airbag for a vehicle configured to expand and deploy along an interior side of a vehicle in the event of a side impact or rollover of the vehicle.
  • the criteria for evaluating vehicle safety vary from country to country, and companies start developing products to ensure that products meet the criteria for evaluation in multiple countries.
  • FMVSS Federal Motor Highway Traffic Safety Standards
  • NHSA National Highway Traffic Safety Administration
  • the proposed rulemaking notice for the FMVSS issued by the National Highway Traffic Safety Administration proposes a requirement aimed at "reducing the likelihood of passengers protruding from the vehicle through the side windows by using an overhang mitigation system in the event of a side impact or rollover". It is becoming.
  • the requirement can be met by providing a curtain airbag as a device intended to reduce protrusion from the motor vehicle.
  • Automotive side curtain airbags are installed horizontally at the top of the car interior to be deployed in the event of a car crash.
  • Side curtain airbags are effective not only on the side of a car but also in case of a rollover, providing passengers with high levels of stability.
  • the gas exploded in the inflator flows into the curtain airbag to inflate the curtain airbag, and the inflated curtain airbag is deployed inside the vehicle to protect the passenger from car collision.
  • NHTSA has begun investigating test methods to mitigate the eventual risks associated with car crashes associated with vulnerable structural problems.
  • RMDB research moving deformable barrier
  • NHTSA introduced the Small Overlap Impact (SOI) test, a recent study called additional oblique RMDB-to-vehicle crash tests, or “Oblique crash test”. ) Is being added.
  • SOI Small Overlap Impact
  • NHTSA assumes 25% or less of the overlap in the width direction of the collision obstacle and the vehicle in the small overlap impact test and 64 km / h in the relative speed, and 35% of the overlap in the width direction of the collision obstacle and the vehicle in the slope collision test.
  • the angle between the collision obstacle and the car is assumed to be 15 degrees and the relative speed is 90 km / h.
  • the head of the driver rotates while moving in the gap between the side curtain airbag and the front airbag of the vehicle, such as the driver's seat or the front passenger's airbag, moving to the front and crash side. Impingement on internal structures can cause catastrophic damage to the driver's head and neck.
  • Patent Document 1 United States Patent Number: US 7,967,334
  • Patent Document 2 US Patent Publication No. US2012 / 0256401
  • the inner panel facing the interior of the vehicle; And an outer panel facing the inner panel and facing toward the side of the vehicle, wherein a plurality of chambers are disposed between the inner panel and the outer panel by a plurality of intermediate chamber walls formed on the inner panel and the outer panel.
  • a front side of the inner panel and the outer panel, the side of the vehicle having a recess defining device for forming a recess region having an expansion thickness smaller than the expansion thickness of the plurality of chambers in the width direction of the vehicle; Curtain airbags are provided.
  • the recess area accommodates the thickness of the driver's seat airbag when the driver's airbag is initially inflated during the collision of the vehicle, and the head of the passenger rotates while the head of the passenger moves forward of the vehicle after the collision with the inner panel. It is formed on a trajectory can accommodate the head of the passenger to prevent the head of the passenger to rotate.
  • the recess limiting device extends downwardly from the top wall of the curtain airbag toward the bottom of the curtain airbag and upwardly from the bottom wall of the curtain airbag toward the top of the curtain airbag. It includes an upward protrusion wall, the fabric of the downward protrusion wall and the fabric of the upward protrusion wall may be spaced apart at a predetermined interval in the vertical direction of the curtain airbag.
  • the downwardly protruding wall extends downwardly from the top wall of the curtain airbag and the upwardly protruding wall extends from the lower wall of the curtain airbag to the front and top of the curtain airbag at a rearward position of the downwardly protruding wall. It may extend obliquely toward.
  • the recess limiting device is provided between the inner panel and the front portion of the outer panel, and has at least a predetermined width along the width direction of the vehicle and an upper and lower length shorter than the upper and lower lengths of the inner panel and the outer panel. It may include one internal tether.
  • the inner tether may include a separate strip-shaped member or may be woven by a one-piece woven method together with the inner panel and the outer panel when the inner panel is manufactured.
  • the recess limiting device may include a sewing line which partially sews the front part of the inner panel and the outer panel to form an unexpanded area for defining the recess area, and the curtain airbag is rearward of the unexpanded area.
  • the movable projection Is provided in the protruding into the interior of the vehicle compared to the surrounding chamber when the curtain airbag is inflated, the movable projection further configured to move in front of the vehicle due to the impact of the shoulder or head of the passenger to cover the recess area It may include.
  • the recessed area of the curtain airbag may be disposed to correspond to the inflation portion along the front and rear directions of the inflated driver's seat airbag of the vehicle when the curtain airbag is inflated.
  • the movable protrusion includes an overlapping portion formed by folding the inner panel of the curtain airbag and the outer panel into a “U” shape so as to protrude into the curtain airbag, and the upper and lower portions of the overlapping portion are connected and unfolded by a sewing line.
  • the first non-expansion region is formed by partially sewing the inner panel and the outer panel corresponding to the proximal end of the overlapping portion along the longitudinal direction, and the inner panel and the outer panel corresponding to the overlapping portion are mutually
  • the second non-expansion area may be formed by sewing.
  • a recess area having a predetermined inflation thickness is formed in front of the side curtain airbag of the vehicle so that the head of the passenger moves to a gap between the inflated curtain airbag and the inflated driver's seat airbag when the vehicle crashes.
  • a recessed area defined by an unexpanded area is formed in front of the side curtain airbag of the vehicle, and a movable protrusion is formed on the rear side of the recessed area of the curtain airbag.
  • curtain airbags and driver's airbags as the head of the passenger rotates toward the front of the car in such a way that when the head of the passenger moves toward the front and outside of the car, the movable protrusion contacts the head or shoulder of the passenger and covers the recess area. The gap between them is blocked. Thus, the head of the passenger can be prevented from moving into the gap between the curtain airbag and the driver's seat airbag.
  • FIG. 1 is a side view illustrating a state in which the side curtain airbag of the vehicle is inflated according to an embodiment of the present invention.
  • FIG. 2 is a partial side view of a non-inflated side curtain airbag of a motor vehicle according to an embodiment of the present invention.
  • FIG. 3 is a cross-sectional view taken along line III-III of FIG. 1.
  • FIG. 4 is a view showing the inside of a vehicle equipped with an inflated side curtain airbag of a vehicle according to an embodiment of the present invention.
  • FIG. 5 is a partial side view of an inflated side curtain airbag of a vehicle according to another embodiment of the present invention.
  • FIG. 6 is a cross-sectional view taken along the line VI-VI of FIG. 5.
  • FIG. 7A is a cross-sectional view illustrating a state in which an internal tether is provided in the side curtain airbag according to another exemplary embodiment of the present invention.
  • FIG. 7B illustrates a method in which an inner tether is integrally formed between an inner panel and an outer panel according to an exemplary embodiment of the present invention.
  • 7C is a view illustrating another manner in which the inner tether is integrally formed between the inner panel and the outer panel according to another embodiment of the present invention.
  • FIG 8 is a partial side view illustrating the inflated side curtain airbag according to another embodiment of the present invention.
  • FIG. 9 is a partial plan view of an inflated side curtain airbag according to another embodiment of the present invention.
  • FIG. 10 is a cross-sectional view taken along line VII-VII of FIG. 8.
  • FIG. 11 is a partial front view illustrating a state in which the side curtain airbag of FIG. 8 is deployed in a non-inflated state.
  • FIG. 12 is a front view illustrating a state where the overlapping part of FIG. 11 is folded backward.
  • FIG. 13 is a cross-sectional view taken along the line XIII-XIII of FIG. 11.
  • FIG. 14 is a cross-sectional view taken along the line XIV-V of FIG. 11.
  • FIG. 15 is a partial front view illustrating a state where the overlapping portion of the side curtain airbag of FIG. 11 is fully deployed.
  • reference numeral “F” denotes the front of the vehicle to which the side curtain airbag of the present invention is applied
  • reference numeral “R” denotes the rear of the automobile
  • reference numeral “U” denotes the upper side of the automobile
  • reference numeral “ D ′′ represents the underside of the motor vehicle.
  • Reference numeral “I” denotes the interior direction of the vehicle in the width direction of the vehicle
  • reference numeral “O” denotes the exterior direction of the vehicle in the width direction of the vehicle.
  • the front and rear (F, R) directions of the vehicle may be expressed in the horizontal direction
  • the up and down (U, D) directions of the vehicle may be expressed in the vertical direction.
  • FIG. 1 is a side view showing the configuration of a side curtain airbag (hereinafter, referred to as "curtain airbag") of an automobile according to an embodiment of the present invention.
  • curtain airbag a side curtain airbag
  • the curtain airbag 10 includes an inner panel 11 and an outer panel 13 facing each other.
  • the inner panel 11 faces the inside of the vehicle and the outer panel 13 faces the side of the vehicle.
  • the curtain airbag 10 is formed of a material having airtightness and flexibility.
  • the upper wall 21, the lower wall 22, the front wall 23, and the rear wall (not shown) of the curtain airbag 10 are formed along edges of the inner and outer panels 11 and 13 facing each other.
  • the basic chamber 15 into which the gas flows is formed.
  • a plurality of intermediate chamber walls are formed along the front and rear directions between the inner and outer panels 11 and 13 in which the basic chamber 15 is defined by the upper, lower, front and rear barriers 21, 22, 23, and 24.
  • a series of chambers 60 is defined by 30.
  • the intermediate chamber wall 30 may extend along the approximately longitudinal direction of the curtain airbag 10 from the top wall 21 or the bottom wall 22. In the figure, for example, intermediate chamber walls 30: 31, 32, etc. extending upwardly from the bottom wall 22 are shown.
  • the intermediate chamber wall 30 defines a plurality of chambers 60 in the front and rear (F, R) directions of the curtain airbag 10.
  • the position and shape of the intermediate chamber walls 30 can be variously modified.
  • the intermediate chamber wall 30 may be formed in the front and rear directions F and R of the curtain airbag 10 in addition to being formed along the substantially longitudinal direction of the curtain airbag 10.
  • the recessed area 1 is formed by having an inflation thickness smaller than the inflation thickness along the width direction of the automobile of the plurality of chambers 60.
  • the recess region 1 is formed by the recess defining device 70.
  • the recess area 1 prevents the head of the passenger from rotating while moving toward the front and side of the vehicle during the collision of the vehicle.
  • the recess region 1 accommodates the thickness of the driver's seat airbag at the initial deployment of the driver's seat airbag inflated due to the collision of the vehicle, so that the head of the passenger is basically the head of the driver's seat airbag and the curtain airbag 10. Prevents the movement between
  • the recess region 1 is formed on a trajectory L which rotates while the head of the passenger colliding with the curtain airbag 10 moves toward the front of the vehicle during the collision of the vehicle to receive the head of the passenger.
  • the head of the passenger may be further rotated in the recess area 1 when the depth of the recess area 1 is too deep.
  • the recessed area 1 accommodates the head of the passenger and prevents the head of the passenger from moving forward of the vehicle and prevents the head of the passenger from rotating in the recessed area 1.
  • the proper inflation thickness is designed to take into account. That is, according to one embodiment of the present invention, when the depth of the recessed region 1 is formed too deep, it is possible that the head of the passenger constrained in the recessed region 1 rotates in the recessed region 1.
  • a recessed area 1 is proposed which has a suitable inflation thickness that can adequately constrain the thickness of the driver's seat airbag during initial deployment of the driver's airbag.
  • the recessed region 1 when the recessed region 1 is formed as an unexpanded region (an area substantially free of expansion thickness) and the depth of the recessed region 1 is deep, the recessed region 1 It is contemplated to cover the recess area 1 in consideration of the rotation of the head of the passenger within.
  • the recess limiting device device 70 may include various forms, such as a sewing line and an internal tether.
  • FIG. 2 is a partial side view of a non-inflated side curtain airbag of a vehicle according to an embodiment of the present invention
  • Figure 3 is a cross-sectional view taken along the line III-III of FIG.
  • a recess defining device 70 defining a recessed region 1 in front of the inner panel 11 and the outer panel 12 constituting the curtain airbag 10 is provided. do.
  • the recess limiting device 70 includes a downwardly projecting wall 71 and an upwardly projecting wall 73.
  • the downwardly protruding wall 71 protrudes from the upper wall 21 of the curtain airbag 10 toward the lower portion of the curtain airbag 10 to connect the upper part of the inner panel 11 and the outer panel 13, and upwardly protrudes.
  • the wall 73 extends from the lower wall 22 of the curtain air bag 10 toward the upper portion of the curtain air bag 10 to face the downwardly protruding wall 71 so that the lower portion of the inner panel 11 and the outer panel 13 are lower. Connect some.
  • the original fabric of the downwardly protruding wall 71 and the original fabric of the upwardly protruding wall 73 are spaced apart by a predetermined interval G in the up and down directions U and D of the curtain airbag 10.
  • the downwardly protruding wall 71 extends from the upper wall 21 toward the lower (D) direction of the curtain airbag 10, and the upwardly protruding wall 73 is positioned at the rear of the proximal end of the downwardly protruding wall 71. It extends inclined in the forward direction F and the upper direction U from the lower wall 22 of 10).
  • the recessed area 1 is approximately inclined so as to correspond to the contour of the inflated thickness along the front and rear sides F and R of the inflated driver's seat airbag, and to hit the inflated driver's seat airbag to cover the front and the outside of the vehicle. It may be formed concave in a state corresponding to the contour of the head of the passenger moving while sliding toward.
  • the fabrics of the upper and lower protruding walls 71 and 73 are formed of roughly circular finishing portions 71a and 73a so that when the curtain airbag 10 is inflated, the curtain airbags of the upper and lower protruding walls 71 and 73 are inflated. At the time of inflation, the inflation pressure is concentrated to prevent the distal ends of the upper and lower protruding walls 71 and 73 from bursting.
  • the upper and downward protrusion walls 71 and 73 may be formed by a sewing line.
  • the upper and lower protruding walls 71 and 73 are one piece woven during laser fusion, thermal fusion, gluing or fabrication of the inner panel 11 and outer panel 13 of the curtain airbag 10. It can be woven together with the inner and outer panels 11 and 13 in a woven manner.
  • FIG. 3 is a cross-sectional view taken along line III-III of FIG. 1.
  • the inflation thickness D1 of the recess area 1 of the curtain airbag 10 is formed to be smaller than the inflation thickness D2 of the chamber 60 such that the head H of the passenger in the event of an automobile collision, for example, an eccentric frontal collision, is formed.
  • the rotation is prevented while moving to the front F of the vehicle and to the outside along the width direction of the vehicle.
  • curtain airbag 10 according to an embodiment of the present invention is deployed along the inner side of the vehicle at the time of collision or overturning of the vehicle to perform the basic function of the curtain airbag (10).
  • the curtain airbag 10 prevents the passenger from protruding outside through the window of the vehicle during a side collision of the vehicle, or protects the head, shoulder chest, etc. of the passenger.
  • curtain airbag 10 is useful even when a shock is applied from the outside of the front of the vehicle together with a front airbag, such as a driver's seat or a passenger seat airbag (hereinafter referred to as "eccentric frontal collision").
  • a front airbag such as a driver's seat or a passenger seat airbag (hereinafter referred to as "eccentric frontal collision").
  • Eccentric frontal collisions may include all cases in which the collision obstacles collide outside the front of the vehicle. That is, the collision obstacle may include collision from the outside of the front of the vehicle along the width direction of the vehicle.
  • the eccentric frontal collision may include a vehicle colliding directly in front of the collision obstacle without tilting, or the vehicle colliding at a predetermined angle with respect to the collision obstacle.
  • eccentric frontal collisions may include collisions overlapping with less than 50% 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 15 degrees, relative to the collision obstacle. And less than collision.
  • the angle between the collision obstacle and the vehicle is not limited to 15 degrees, and may include various ranges of angles.
  • An eccentric frontal collision is, for example, the front left side of the vehicle tilted at a predetermined angle with respect to the collision obstacle, and a part of the front left side of the vehicle overlaps 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.
  • the collision obstacle may be a stationary or movable object and the weight may be the same, heavier or lighter than the weight of the vehicle.
  • the curtain airbag 10 according to the present invention is applicable to a collision in which at least 50% of the front of the collision object and the front of the vehicle overlap in addition to the eccentric frontal collision described above.
  • FIG. 4 is a view showing the inside of a vehicle equipped with an inflated side curtain airbag of a vehicle according to an embodiment of the present invention.
  • the recessed region 1 when the curtain airbag 10 is inflated, the recessed region 1 may be formed by the central axis C of the thickness of the expanded driver's seat airbag 3 along the front and rear (F, R) directions of the vehicle. It is arranged in approximately the corresponding position.
  • the recess region 1 has a shape inclined toward the front side F of the vehicle so as to correspond to the lateral shape of the thickness portion of the inflated driver's seat airbag 3 (see FIGS. 1 and 2).
  • the thickness of the driver's seat airbag 3 is defined by the recess region 1 at the beginning of deployment. To be constrained.
  • the driver's seat airbag 3 and the curtain airbag 10 are inflated together.
  • the passenger's head H bounces toward the front and side of the vehicle while colliding with the center or center-left side of the driver's seat airbag 3.
  • the head H of the passenger is rotated by the friction between the head H of the passenger and the driver's seat airbag 3, and moves to the outside O of the vehicle so that the head of the passenger H is the curtain airbag 10. And rotate while facing toward the front (F) of the vehicle.
  • the head H of the passenger is the recess region 1.
  • the recess region 1 has a shape inclined toward the front F of the vehicle so that the head of the passenger moving obliquely to the inflated driver's seat airbag 3 and moving toward the front F and the outer O of the vehicle ( Since the shape corresponding to H) accommodates the head (H) of the passenger effectively.
  • the recessed area 1 has an additional inflation thickness D2 so that the head H of the passenger hits the curtain airbag 10 and moves further along the head trajectory L, which is moved to the front F of the vehicle. Prevents rotation from occurring.
  • FIG. 5 is a partial side view of an inflated side curtain airbag of a vehicle according to another embodiment of the present invention
  • FIG. 6 is a cross-sectional view taken along the line VI-VI of FIG. 5.
  • At least one recess limiting device 70 defining a recess area 1 of the curtain airbag 10 is provided between the inner panel 11 and the outer panel 13.
  • the inner tether 75 has a predetermined width L1 along the width direction of the vehicle, and an upper and lower length L2 shorter than the upper and lower lengths of the inner panel 11 and the outer panel 13.
  • the inner tether 75 may include a strip member having the same material as the inner and outer panels 11 and 13, and is connected to the inner and outer panels 11 and 13 through the sewing line S1.
  • the inner panel 75 may be connected to be inclined toward the front F of the vehicle so that the recess region 1 may be inclined toward the front of the vehicle.
  • FIG. 7A is a cross-sectional view illustrating a state in which an internal tether is provided in the side curtain airbag according to another exemplary embodiment of the present invention.
  • the recess defining device 70 defining the recess region 1 of the curtain airbag 10 may include at least one inner tether provided between the inner panel 11 and the outer panel 13. (77).
  • the inner tether 77 When the inner tether 77 is manufactured in the inner panel 11 and the outer panel 13, the inner and outer panels may be formed by the one-piece woven method with the inner panel 11 and the outer panel 13. 11, 13) can be woven together.
  • the inner tether 77 is woven to have a width L3 smaller than the inflation thickness D2 of the chamber 60 to define the recessed region 1.
  • the inner tether 77 is integrally formed with the inner panel 11 and the outer panel 13.
  • the inner tether 77 is integrated with the inner and outer panels 11 and 13 by using a warp or weft forming the inner and outer panels 11 and 13 when the inner panel 11 and the outer panel 13 are woven.
  • additional yarns may be introduced into the warp or weft yarns forming the inner and outer panels 11 and 13 to be integrally formed with the inner and outer panels 11 and 13.
  • 7B is a diagram illustrating an example in which an inner tether is integrally formed between an inner panel and an outer panel according to an exemplary embodiment of the present invention.
  • the inner panel 11 forms a woven layer formed by the warp yarn T and the weft yarn S
  • the outer panel 13 is the woven layer formed by the warp yarns T and the weft yarn S.
  • An additional yarn M is woven into the inner panel 11 along the direction of the inclination T or weft S of the inner panel 11, and extends to the outer panel 13 before being inclined T or weft. A certain distance is woven into the outer panel 13 along the direction (S). This process is repeated and the inner tether 77 is woven integrally between the inner and outer panels 11 and 13.
  • the yarn M is woven in the inclined T direction.
  • 7C is a view illustrating another manner in which the inner tether is integrally formed between the inner panel and the outer panel according to another embodiment of the present invention.
  • the warp yarns T and the weft yarns S grow toward the outer panel 13 by leaving the surface area formed by the inner panel 11 and forming the outer panel 13.
  • the inner tether 77 may be integrally formed with the inner panel 11 and the outer panel 13 by being connected to the weft yarn. In the figure, it is shown that the inner tether 77 is inclined T of the inner panel 77 to leave the surface of the inner panel 77 and enter the outer panel 13.
  • the inner tether 77 may be integrally formed with the inner and outer panels 11 and 13 between the inner and outer panels 11 and 13 by various weaving methods in addition to the above-described method.
  • the following describes the curtain airbag 10 in which the recessed region 1 is defined by the non-expanded region and is configured to cover the concave depth of the non-expanded region.
  • FIG. 8 is a partial side view showing an inflated side curtain airbag according to another embodiment of the present invention
  • Figure 9 is a partial plan view of the inflated side curtain airbag according to another embodiment of the present invention
  • Figure 10 is a view Fig. 8 is a cross sectional view taken along line VII-VII.
  • the recess defining apparatus 70 defining the recess region 1 partially sews the front portions of the inner panel 11 and the outer panel 13 to fix the non-expansion region 79.
  • the non-expanded region 79 may have a state in which there is substantially no expansion thickness.
  • the sewing line 78 may have a substantially elliptical shape, and may have a shape inclined toward the front side F of the curtain airbag 10.
  • the recessed region 1 configured as described above is non-inflated when the curtain airbag 10 is inflated to have a deeper depth than the recessed region 1 according to FIGS. 1 to 7 described above.
  • the restraining effect of the driver's seat airbag 3 inflated by the recess region 1 can be enhanced.
  • the curtain airbag 10 further includes a movable protrusion 90 provided at the rear of the non-expanded region 79.
  • the movable protrusion 90 protrudes into the interior I of the vehicle as compared to the surrounding chamber 60 when the curtain airbag 10 is inflated, but covers the recess area 1 in the event of a collision with the shoulder or head of the passenger. Rotate to the front of the vehicle (F).
  • the movable protrusion 90 is formed by an overlapping portion O formed by folding the inner panel 11 and the outer panel 13 in an approximately "U" shape at the front of the curtain airbag 10 toward the inner side I. do.
  • the overlap O comprises a front overlap 01 and a back overlap O2.
  • the movable protrusion 90 has a relatively thin thickness in the front and rear (F, R) directions of the vehicle at the time of expansion, and is configured to be freely rotatable to the front (F) of the vehicle.
  • the inner and outer panels 11 and 13 form a first non-expansion region 83 by a sewing line 81 to form the first non-expansion region 83 upon expansion. It can be made easy to the front side F as a hinge point.
  • Inner and outer panels 11 and 13 corresponding to the front overlapping portion O1 of the movable protrusion 90 have a second non-expanded area 87 formed by the sewing line 85, so that the movable protrusion ( 90, the expansion thickness before and after (F, R) can be made thin.
  • the vehicle may further protrude relatively to the inner side (I) of the vehicle and may be easily rotated in the front (F) direction.
  • the second non-expansion region 87 can reduce interference with the driver's seat airbag 3 (see FIG. 10).
  • the driver's seat airbag 3 when the curtain airbag 10 and the driver's seat airbag 3 are initially inflated due to the collision of the car, the driver's seat airbag 3 is inflated along the front and rear (F, R) directions of the car. It is inserted in the additional recess area 1 to constrain one side of the driver's seat airbag 3, and the movable protrusion 90 protrudes from the rear of the inflated driver's seat airbag 3.
  • the curtain airbag 10 may initially restrain the head H of the rotating passenger by hitting the driver's seat airbag 3 and moving obliquely toward the front F and the outside O of the vehicle. Can be.
  • One side of the driver's seat airbag 3 may be inserted into and constrained in the recessed area 1 of the curtain airbag 10 so that the gap between the driver's seat airbag 3 and the curtain airbag 10 is initially blocked to allow the passenger's head ( H) can be initially prevented from moving into the gap between the curtain airbag 10 and the driver's seat airbag 3.
  • the movable protrusion 90 is pushed by the passenger's head H or the shoulder to remove the proximal end thereof. 1 It rotates to the front F of a vehicle by covering the recessed area 1 with the non-expansion area 83 as a hinge point.
  • the movable protrusion 90 rotated forward F blocks the gap between the curtain airbag 10 and the driver's seat airbag 3 so that the passenger's head H has the curtain airbag 10 and the driver's seat airbag 3. ) To prevent rotation by moving into the gap between Thus, the head and neck injury of the passenger can be reduced.
  • FIG. 11 is a partial front view illustrating a state in which the side curtain airbag of FIG. 8 is deployed in a non-inflated state
  • FIG. 12 is a front view illustrating a state where the overlapping portion of FIG. 11 is folded backward
  • FIG. 13 is a line of FIG. 11. It is sectional drawing taken along XIII-XIII.
  • the overlapping portion O includes a front overlapping portion O1 and a rear overlapping portion O2 disposed before and behind the foldable portion F1.
  • the inner and outer panels 11 and 13 corresponding to the proximal end of the rear overlap portion 02 are sewn by the sewing line 81 to form a first non-expansion region 83.
  • the first non-expansion region 83 is formed in the up, down (U, D) directions of the curtain airbag 10, and the upper end thereof is rotated 180 degrees with the upper end extending to the rear side R of the curtain airbag 10. "It can have a shape.
  • the first non-expansion region 83 is closed at both ends by a circular sewing line.
  • the first non-expansion region 83 may be formed in various shapes such as straight, inclined, and curved.
  • the inner and outer panels 11 and 13 corresponding to the front overlap portion 01 are sewn by the sewing line 85 to form a second non-expansion region 87 in the front overlap portion O1.
  • the second non-expansion region 87 is closed at both ends by a circular sewing line, similar to the first non-expansion region 83.
  • the second non-expansion region 87 may also be modified in various forms in addition to the straight shape.
  • the upper and lower edges of the curtain airbag 10 corresponding to the overlapping portion O are formed with cut portions 40 cut by a predetermined length in the front and rear (F, R) directions of the curtain airbag 10, and the cut portions 40
  • the front and rear portions 45 and 47 are disposed adjacent to each other and then sewn through the sewing line 51 to prevent the upper and lower portions of the overlapping portion O from being extended to the front and rear sides (F, R). It is composed.
  • the front and rear portions 45 and 47 are sewn together with the reinforcing member 50 through the sewing line 51 after overlapping with the reinforcing member 50.
  • the reinforcing member 50 serves to complement the bonding force of the front and rear parts 45 and 47 connected through the sewing line S1, and the gas supplied between the inner and outer panels 11 and 13 is leaked. Can be prevented.
  • FIG. 14 is a cross-sectional view taken along the line XIV-X of FIG. 11, and FIG. 15 is a partial front view showing a state where the overlapping portion of the side curtain airbag of FIG. 11 is fully deployed.
  • the overlapping portion O cuts the upper and lower edge portions outside the upper and lower walls 21 and 22 of the curtain airbag 10 by a predetermined horizontal length so as to have a pair of cut portions 40. And a portion of the inner and outer panels 11 and 13 of the curtain airbag 10 corresponding to the cut portion 40 so that the front and rear ends 41 and 43 of the cut portion 40 are adjacent to each other. It is formed by folding in the (U, D) direction.
  • the inner and outer panels 11 and 13 are folded along the longitudinal center line V of the cutout 40 to form the folded portion F1, and the front and rear overlapping portions facing each other around the folded portion F1. (O1, O2) are formed.
  • the reinforcing members 50 overlap the front and rear portions 45 and 47 of the cut portions 40 disposed adjacent to each other, and the front and rear portions 45 and 47 of the cut portions 40 through the sewing line 51. And reinforcing members 50 may be coupled together.
  • the reinforcing member 50 may be formed as a strip member having the same material as the inner and outer panels 11 and 13.

Landscapes

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

Abstract

L'invention concerne un rideau gonflable latéral sur une automobile. Le rideau gonflable comprend un panneau intérieur faisant face à l'intérieur de l'automobile et un panneau extérieur opposé au panneau intérieur et faisant face à un côté intérieur de l'automobile. Une pluralité de chambres sont définies entre les panneaux intérieur et extérieur au moyen d'une pluralité de parois de chambre intermédiaires formées sur les panneaux intérieur et extérieur, et un dispositif de définition d'évidement pour former une zone d'évidement présentant une épaisseur de gonflage plus petite que les épaisseurs de gonflage, dans la direction de la largeur de l'automobile, de la pluralité de chambres, est prévu à l'avant des panneaux intérieur et extérieur. Lors d'un accident de voiture, une telle configuration peut empêcher la tête d'un passager de se déplacer vers l'avant ou l'extérieur de l'automobile à travers l'espace entre le rideau gonflable et le coussin de sécurité gonflable dans le siège du conducteur qui ont été gonflés et empêcher la tête du passager de tourner, réduisant ainsi les blessures au niveau de la tête et du cou du passager.
PCT/KR2017/003282 2016-04-01 2017-03-27 Rideau gonflable latéral sur une automobile WO2017171334A1 (fr)

Applications Claiming Priority (2)

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KR10-2016-0040058 2016-04-01
KR1020160040058A KR101758811B1 (ko) 2016-04-01 2016-04-01 자동차의 사이드 커튼 에어백

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JP2018114838A (ja) * 2017-01-18 2018-07-26 日本プラスト株式会社 エアバッグ
US20180354448A1 (en) * 2017-06-08 2018-12-13 Hyundai Mobis Co., Ltd. Curtain airbag apparatus
US11285907B1 (en) 2020-09-24 2022-03-29 Ford Global Technologies, Llc Restraint system
US11872433B2 (en) 2020-12-01 2024-01-16 Boost Treadmills, LLC Unweighting enclosure, system and method for an exercise device

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KR20230060707A (ko) 2021-10-28 2023-05-08 (주)대한솔루션 자동차 뒷좌석용 에어백

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JP2012071723A (ja) * 2010-09-29 2012-04-12 Toyoda Gosei Co Ltd サイドエアバッグ装置
JP2014037159A (ja) * 2012-08-10 2014-02-27 Toyota Motor Corp 車両用カーテンエアバッグ装置
KR20150094940A (ko) * 2014-02-12 2015-08-20 아우토리브 디벨롭먼트 아베 차량용 사이드 커튼 에어백
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JP2018114838A (ja) * 2017-01-18 2018-07-26 日本プラスト株式会社 エアバッグ
US20180354448A1 (en) * 2017-06-08 2018-12-13 Hyundai Mobis Co., Ltd. Curtain airbag apparatus
US10668888B2 (en) * 2017-06-08 2020-06-02 Hyundai Mobis Co., Ltd. Curtain airbag apparatus
US11285907B1 (en) 2020-09-24 2022-03-29 Ford Global Technologies, Llc Restraint system
US11872433B2 (en) 2020-12-01 2024-01-16 Boost Treadmills, LLC Unweighting enclosure, system and method for an exercise device

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