WO2013153933A1 - Dispositif de coussin gonflable latéral - Google Patents

Dispositif de coussin gonflable latéral Download PDF

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Publication number
WO2013153933A1
WO2013153933A1 PCT/JP2013/058297 JP2013058297W WO2013153933A1 WO 2013153933 A1 WO2013153933 A1 WO 2013153933A1 JP 2013058297 W JP2013058297 W JP 2013058297W WO 2013153933 A1 WO2013153933 A1 WO 2013153933A1
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WO
WIPO (PCT)
Prior art keywords
airbag
pair
occupant
dimensional shape
notch
Prior art date
Application number
PCT/JP2013/058297
Other languages
English (en)
Japanese (ja)
Inventor
英孝 東
克典 今井
Original Assignee
芦森工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 芦森工業株式会社 filed Critical 芦森工業株式会社
Publication of WO2013153933A1 publication Critical patent/WO2013153933A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/23138—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/2334—Expansion control features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/239—Inflatable members characterised by their venting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/23138—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection
    • B60R2021/23146—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection seat mounted
    • 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
    • B60R2021/23571—Inflatable members characterised by their material characterised by connections between panels

Definitions

  • the present invention relates to a side airbag device that is mounted in a vehicle and protects an occupant with an airbag.
  • a side airbag device mounted on the side of the seat is used to protect the passenger seated on the seat in the event of a vehicle emergency or collision.
  • an occupant is received by an airbag that is inflated and deployed between the occupant and a side wall (for example, a door trim) of the vehicle, and an impact to the occupant is absorbed.
  • a side wall for example, a door trim
  • crew and a side wall is known (refer patent document 1).
  • the space between the shoulder and the side wall becomes narrow, so that it is difficult for the airbag to be deployed between the shoulder and the side wall, and the air bag may be caught on the shoulder. .
  • the airbag that is being deployed may be caught on the occupant's upper arm, causing the upper arm to jump significantly. As a result, the stable deployment of the airbag is hindered, and there is a possibility that the impact absorption characteristics of the airbag may be affected.
  • the portion that receives the shoulder of the airbag does not expand to a sufficient thickness, and the airbag expands to the shoulder, thereby The expansion of the catching part may be delayed.
  • the impact absorption characteristics of the airbag to the passenger are not sufficiently exhibited. Therefore, with respect to the conventional airbag, there is room for improvement from the viewpoint of more reliably absorbing the occupant's impact.
  • the present invention has been made in view of the above-described conventional problems, and an object of the present invention is to stably deploy an airbag provided in a side airbag device even in a vehicle having a narrow space between an occupant and a side wall. It is to make sure that the shock absorption characteristics of the material are exhibited.
  • the present invention relates to a side airbag device that protects an occupant between an occupant seated on a seat and a side wall of a vehicle.
  • the inflator generates gas, and inflates and deploys the gas to protect the trunk below the occupant's shoulder.
  • An inflatable portion formed by joining opposing base fabrics, and a three-dimensional shape portion formed at a part of the peripheral portion of the opposing base fabric and positioned at the peripheral portion of the inflatable portion And a pair of notch portions that are formed in positions where the opposing fabrics of the airbag are overlapped at a part of each peripheral portion and are stretched in the thickness direction of the inflating portion.
  • the three-dimensionally shaped portion of the bag is three-dimensionally formed in the thickness direction of the inflatable portion by a pair of joined notches.
  • the airbag provided in the side airbag device can be stably deployed even in a vehicle having a narrow space between the passenger and the side wall.
  • the impact absorption characteristics of the airbag can be reliably exhibited.
  • the side airbag device of the present embodiment is an occupant protection device that is mounted in a vehicle and protects the occupant between an occupant seated on a seat and a side wall of the vehicle. The occupant is received and protected by an airbag that inflates and deploys along the side wall.
  • FIG. 1 is a side view of a seat 80 on which the side airbag device 1 of the present embodiment is mounted, and shows the seat 80 and an occupant 90 as seen from the outside of the vehicle.
  • the deployed airbag 10, the seat 80, and the occupant 90 are shown in a stacked manner.
  • FIG. 2 is a front view of the occupant 90 and the airbag 10 as viewed from the X direction in FIG. 1 and also shows a part of the seat 80 and a part of the side wall 85 of the vehicle.
  • the side wall 85 includes, for example, a door trim or a window (a door trim in FIG. 2) provided on a side surface in the vehicle.
  • the right side is the front side of the vehicle
  • the left side is the rear side of the vehicle.
  • the front, the back, the upper, and the lower in the vehicle are referred to as the front, the rear, the upper, and the lower, respectively.
  • the front-rear direction and the vertical direction in the vehicle are referred to as the front-rear direction and the vertical direction, respectively
  • the width direction of the vehicle is referred to as the width direction.
  • the seat 80 is a variety of vehicle seats (driver's seat, passenger seat, rear seat, etc.), as shown, a seat cushion 81 on which the occupant 90 sits, a seat back 82 located on the back of the occupant 90, and a headrest 83.
  • the side airbag device 1 before operation is mounted on the side portion 84 of the seat 80 and is fixed to the seat 80 (for example, a seat frame) within the side portion 84.
  • the side portion 84 of the seat 80 is an outer portion in the width direction of the seat back 82 and has a housing portion (not shown) of the side airbag device 1.
  • the side airbag device 1 is positioned rearwardly and on the outer side in the width direction (side wall 85 side) with respect to the occupant 90 in a state of being accommodated in the accommodating portion of the seat back 82.
  • the side airbag device 1 includes a bag-shaped airbag (side airbag) 10, two fixing members 2 made of bolts, and a cylindrical inflator 3 (shown by a dotted line).
  • the airbag 10 is accommodated in the side portion 84 (accommodating portion) of the seat 80 in a state of being folded so as to be inflated and deployed.
  • the airbag 10 and the inflator 3 are fixed to the side portion 84 of the seat 80 by the fixing member 2 attached to the inflator 3.
  • the inflator 3 is a cylinder-type gas generator, and is housed in the side portion 84 of the seat 80 together with the airbag 10 while being disposed in the airbag 10.
  • the inflator 3 operates in response to an operation instruction signal received from a vehicle instruction device (not shown) to generate gas in the airbag 10.
  • This gas is supplied into the folded airbag 10, and the airbag 10 is inflated and deployed along the side wall 85.
  • the airbag 10 is inflated and deployed in the side space 86 between the occupant 90 seated on the seat 80 and the side wall 85 to protect the occupant 90 in the side space 86.
  • the airbag 10 At the time of inflating and deploying, the airbag 10 first jumps out of the seat 80 from the side portion 84 of the seat 80 (vehicle compartment), and deploys toward the side space 86 while inflating. Next, the airbag 10 is deployed in the vertical direction while being deployed in front of the seat bag 82, and the entire airbag 10 is inflated and deployed between the occupant 90 and the side wall 85. In this state, the occupant 90 is received and protected by the airbag 10. Further, the gas in the airbag 10 is discharged from the vent hole 11 of the airbag 10 (arrow G in FIG. 1), so that the impact of the occupant 90 is mitigated.
  • the airbag 10 of the present embodiment is inflated and deployed mainly in the side space 86 below the shoulder 91 of the occupant 90 by the gas generated by the inflator 3, and protects the trunk 92 below the shoulder 91 of the occupant 90. . That is, the airbag 10 is deployed to the side of the body 92 (including the portion from the chest 93 to the waist 94 of the occupant 90), and the body 92 of the occupant 90 is received by the airbag 10.
  • the airbag 10 is deployed along the back surface of the upper arm 95 of the occupant 90. As a result, the airbag 10 enters the side of the chest 93 and is inflated and deployed in the side space 86 below the upper arm 95 of the occupant 90.
  • the size and shape of the airbag 10 are set corresponding to the shape of the side space 86 and the shape of the side surface of the body 92, and the airbag 10 is formed in a shape that is longer in the vertical direction than in the front-rear direction. .
  • the back side portion and the side surface portion of the rib 96 (hatched in FIG. 1) are received by the airbag 10.
  • the shoulder 91 of the occupant 90 contacts the side wall 85 in a state where the body 92 is received by the airbag 10, and the impact of the shoulder 91 is absorbed by the side wall 85.
  • FIG. 3 is a diagram showing a manufacturing procedure of the airbag 10 and shows the airbag 10 expanded on a plane. Moreover, the airbag 10 before manufacture is shown to FIG. 3A, and the airbag 10 after manufacture is shown to FIG. 3B. As illustrated, the airbag 10 includes a front base fabric (front panel) 12 on the occupant 90 side and a back base fabric (back panel) 13 on the side wall 85 side. The base fabrics 12 and 13 are integrally connected at the center line L and formed symmetrically with respect to the center line L (see FIG. 3A).
  • the base fabrics 12 and 13 are folded at the center line L, and the overlapped base fabrics 12 and 13 are joined in an airtight manner at the peripheral joint 14 (see FIG. 3B).
  • the peripheral edge joining portion 14 is formed on the peripheral edge portion 15 of the opposing base fabrics 12 and 13 by joining the peripheral edge portions 15 of the base fabrics 12 and 13 by sewing (or sewing and bonding).
  • a joining margin having a predetermined width is provided at the edges of the base fabrics 12 and 13.
  • the peripheral edge 15 of the base fabrics 12 and 13 is closed by the peripheral joint 14, and the air chamber 16 is formed between the base fabrics 12 and 13.
  • an inflatable portion 17 that is inflated by the vent hole 11 and gas is formed in the airbag 10.
  • the vent hole 11 is formed in the airbag 10 by not partially joining the peripheral edge portions 15 of the base fabrics 12 and 13.
  • the air chamber 16 is formed inside the inflatable portion 17 and is connected to the outside of the airbag 10 through the vent hole 11.
  • the inflator 3 is inserted into the inflating part 17 (the air chamber 16) from the slit 18 and attached to the inflating part 17.
  • the inflator 3 generates gas in the inflating portion 17, and the gas is filled in the air chamber 16. Thereby, the inflating part 17 and the air chamber 16 are inflated, and the airbag 10 is inflated and deployed.
  • the airbag 10 includes the opposing base fabrics 12 and 13 and the inflating portion 17 formed in a bag shape by joining the opposing base fabrics 12 and 13 at the peripheral edge portion 15.
  • the base fabrics 12 and 13 which the airbag 10 opposes have a pair of notch parts 20 and 21 (refer FIG. 3A), and the airbag 10 has a pair of notch parts 20 and 21.
  • It has the three-dimensional shape part 22 formed in three-dimensional shape by (refer FIG. 3B).
  • the three-dimensional shape portion 22 is formed in a three-dimensional shape in the thickness direction of the inflatable portion 17 at one or a plurality of (here, one) corner portions of the inflatable portion 17 (airbag 10).
  • the thickness direction W (refer FIG. 4D) of the expansion part 17 is a direction of the thickness of the expansion part 17 in the expanded state.
  • the thickness direction W of the inflating portion 17 is simply referred to as the thickness direction W.
  • FIG. 4 is a diagram showing a procedure for forming the three-dimensional shape portion 22 in the airbag 10, and shows the airbag 10 in the vicinity of the pair of cutout portions 20 and 21.
  • the pair of cutout portions 20 and 21 and the three-dimensional shape portion 22 are formed at the upper end portion of the airbag 10.
  • the cutout portions 20 and 21 are portions of the base fabrics 12 and 13 that are formed in a cutout shape, and include the base fabrics 12 and 13 around the cutout portions.
  • a pair of notch parts 20 and 21 are formed in the position which overlaps each other in a part (part in which the solid-shaped part 22 is formed) of each peripheral part 15 of the base fabrics 12 and 13 which oppose, 12 and 13 are superposed at the time of joining.
  • the pair of notches 20 and 21 are formed symmetrically with respect to the center line L so that the boundary line is located at the center line L of the base fabrics 12 and 13, and are formed in a concave shape as a whole. It has become.
  • the notch 20 (21) of each base fabric 12 (13) has a concave shape and has a pair of edges 20A and 20B (21A, 21B) formed in the notch 20 (21).
  • the pair of edge portions 20A, 20B (21A, 21B) is formed in a bent shape including two straight portions, and is bent at a bent portion 20C (21C) located at the bottom of the notch portion 20 (21).
  • the bent portion 20C (21C) is formed in a concave shape between the pair of edge portions 20A and 20B (21A and 21B).
  • the pair of notches 20 and 21 and the opening 23 are expanded in the thickness direction W (see FIG. 4C), and the notches 20 and 21 are centered (folded) passing through the bent portions 20C and 21C. Fold it in half at line F1).
  • the pair of edge portions 20A and 20B (21A and 21B) (the portion excluding the joining margin of the base fabrics 12 and 13) are formed symmetrically with respect to the fold line F1 so as to have the same length, and the pair of edge portions
  • the angle between 20A, 20B (21A, 21B) and the fold line F1 is the same angle.
  • the pair of edges 20A and 20B (21A and 21B) in each notch 20 (21) overlap, and the opening 23 is closed ( (See FIG. 4D). Further, a new edge portion including a pair of cutout portions 20 and 21 is formed in the thickness direction W at the corner portion of the inflating portion 17. In that state, the opening 23 is closed by joining the pair of notches 20 and 21 linearly in the thickness direction W.
  • the pair of cutout portions 20 and 21 are joined in the straight cutout joining portion 24 in a state where the pair of cutout portions 20 and 21 are extended in the thickness direction W, so that the inflatable portion 17 is formed in the airbag 10.
  • the pair of edge portions 20A and 20B (21A and 21B) in the notch portion 20 (21) are overlapped so as to close the opening 23 when the pair of notch portions 20 and 21 are joined. Be joined.
  • the margins 20A, 20B, 21A, and 21B are provided with a joining margin having a predetermined width.
  • a notch joining portion 24 is formed along the thickness direction W in the pair of notch portions 20 and 21.
  • the vicinity of the cutout portions 20 and 21 of the base fabrics 12 and 13 is formed in a shape in which a space is provided in the thickness direction W.
  • this is formed into a three-dimensional shape, and the portion of the shape is referred to as a three-dimensional shape portion 22.
  • joining the notch parts 20 and 21 vicinity of the base fabrics 12 and 13 to the said shape is said joining to a three-dimensional shape.
  • the shape is three-dimensional in the thickness direction W with respect to the planar base fabrics 12 and 13.
  • the three-dimensional shape portion 22 of the airbag 10 is three-dimensionally formed in the thickness direction W by the pair of cutout portions 20 and 21 joined together.
  • the three-dimensional shape portion 22 is formed in a part of the peripheral edge portion 15 of the opposing base fabrics 12 and 13 and is located at the peripheral edge portion 19 of the inflating portion 17.
  • two peripheral surfaces M ⁇ b> 1 and M ⁇ b> 2 are formed between two side surfaces M ⁇ b> 3 and M ⁇ b> 4 composed of the opposing base fabrics 12 and 13 by joining the pair of cutout portions 20 and 21.
  • the two peripheral surfaces M ⁇ b> 1 and M ⁇ b> 2 are formed with the notched joint portion 24 as a common end portion along the thickness direction W.
  • the three-dimensional shape portion 22 is formed into a three-dimensional shape in which these four surfaces M1 to M4 are combined.
  • the airbag 10 has one or a plurality of (here, one) three-dimensionally shaped portions 22 and inflates in the thickness direction W together with the three-dimensionally shaped portions 22.
  • FIG. 5 is a side view of the airbag 10 after inflation
  • FIG. 6 is a perspective view of the airbag 10 after inflation.
  • the inflation portion 17 is inflated in the thickness direction W by the inflation of the airbag 10.
  • the three-dimensionally shaped part 22 is a part of the inflating part 17 and inflates three-dimensionally in the thickness direction W at the peripheral part 19 of the inflating part 17.
  • the airbag 10 When the airbag 10 is viewed from the side (see FIG. 5), the inflated airbag 10 and the inflatable portion 17 are contracted more than the expanded state T (indicated by a two-dot chain line in FIG. 5), and the inflatable portion. The peripheral edge 19 of 17 is displaced inward.
  • the three-dimensional shape part 22 formed three-dimensionally in the thickness direction W, shrinkage and displacement are suppressed, and the three-dimensional shape part 22 expands in the thickness direction W.
  • the three-dimensionally shaped portion 22 expands to a predetermined thickness corresponding to the dimensions of the pair of notches 20 and 21 at a predetermined position of the airbag 10 (see FIG. 6).
  • the three-dimensional shape portion 22 is inflated at a predetermined position in the vehicle interior.
  • the airbag 10 is formed so that the upper part is thinner than the lower part corresponding to the part of the occupant 90 to be protected. Accordingly, the inflatable portion 17 of the airbag 10 has an upper inflatable portion 17A that gradually becomes thinner upward.
  • the upper inflating portion 17A (see FIG. 1) expands upward along the back surface of the upper arm 95 of the occupant 90, and inflates so as to protrude upward on the side of the chest 93.
  • the three-dimensional shape portion 22 of the airbag 10 is formed at the top portion (the uppermost portion of the airbag 10) of the upper inflating portion 17A, and inflates at the tip portion above the inflating portion 17.
  • the upper expanding portion 17A is prevented from being warped or displaced.
  • the two side surfaces M3 and M4 made of the opposing base fabrics 12 and 13 are supported by the two peripheral surfaces M1 and M2 formed therebetween, and the upper inflating portion 17A is self-supporting. Inflate and expand as you do. Accordingly, the position of the upper inflating portion 17A is stabilized, and the upper inflating portion 17A is smoothly inflated and deployed in the side space 86 below the shoulder 91 and the upper arm 95 of the occupant 90.
  • the airbag 10 being deployed is caught by the shoulder 91 of the occupant 90 in order to protect the body 92 below the shoulder 91 of the occupant 90 by the airbag 10. Can be prevented. Further, since the airbag 10 is deployed on the side of the body 92, it is possible to suppress the airbag 10 being deployed from jumping up the upper arm 95 of the occupant 90. As a result, even in a vehicle where the space between the occupant 90 and the side wall 85 is narrow, the airbag 10 can be stably deployed, and the impact absorption characteristics of the airbag 10 can be reliably exhibited.
  • the upper arm 95 of the occupant 90 may be lowered and positioned in the side space 86 rather than being tilted forward (see FIG. 1).
  • the airbag 10 is deployed along the back surface of the upper arm 95 between the upper arm 95 and the seat 80 so that the back surface of the upper arm 95 is pushed forward by the peripheral surface M1 or the like.
  • the airbag 10 can be smoothly deployed. Further, similarly to the above, the airbag 10 being deployed can be prevented from being caught on the shoulder 91 of the occupant 90.
  • the portion of the airbag 10 that receives the chest 93 (or waist 94) can be inflated quickly. Thereby, the impact of the chest 93 and the waist 94 can be reliably absorbed while restraining the chest 93 and the waist 94 early. Further, since the movement of the shoulder 91 and the upper arm 95 is suppressed when the airbag 10 is deployed, the shoulder 91 can be brought into contact with a predetermined position (shock absorbing position) of the side wall 85, and the impact of the shoulder 91 is caused by the side wall 85. Can be absorbed reliably.
  • the airbag 10 can be easily formed in three dimensions. Further, the airbag 10 can be formed into a shape corresponding to a portion to be protected by the occupant 90 by the three-dimensional shape portion 22 and the airbag 10 is inflated to a thickness necessary to absorb the impact of the occupant 90. Can do. Therefore, the impact absorption characteristic of the airbag 10 is improved, and the impact of the occupant 90 can be reliably absorbed by the airbag 10.
  • the thickness at the time of expansion gradually increases in the thickness direction W as the distance from the peripheral joint portion 14 increases. Therefore, in order to ensure a thickness equivalent to that of the three-dimensional shape portion 22 in a portion corresponding to the three-dimensional shape portion 22 of the planar airbag (referred to as a corresponding portion), the corresponding portion is located away from the peripheral joint portion 14. It is necessary to provide it.
  • the planar airbag in the inflated state, the planar airbag (periphery of the corresponding portion) is larger than the three-dimensional shape portion 22, so that the inflation and deployment of the planar airbag may be delayed.
  • the planar airbag being deployed may be caught by the occupant 90 (shoulder 91, upper arm 95, etc.) or parts in the vehicle.
  • the thickness of the airbag 10 can be secured by the three-dimensional shape portion 22, and therefore the airbag 10 can be made small.
  • the airbag 10 is inflated and deployed quickly, and the airbag 10 being deployed is prevented from being caught by the occupant 90 and parts.
  • the airbag 10 is stably and quickly deployed on the side of the body 92, the impact absorbing characteristics of the airbag 10 can be reliably exhibited. Since the airbag 10 becomes small, the weight and cost of the airbag 10 can also be reduced.
  • the three-dimensionally shaped portion 22 can be easily formed by joining the pair of cutout portions 20 and 21, labor and time required for manufacturing the airbag 10 can be reduced. Further, since the three-dimensionally shaped portion 22 can be formed without causing unnecessary portions on the base fabrics 12 and 13, the weight and cost of the airbag 10 can be reduced. Since the three-dimensional shape part 22 is easy to fold, the airbag 10 can be folded compactly. When the airbag 10 is deployed, the three-dimensional shape portion 22 is smoothly deployed without being caught around.
  • a pair of edge parts 20A and 20B of the notch part 20 are overlapped and joined.
  • a pair of edge part 20A, 20B can be joined accurately.
  • adhered a pair of edge part 20A, 20B it can prevent that a wrinkle and a shift
  • FIG. Therefore, the three-dimensional shape part 22 can be formed accurately. If the pair of edge portions 20A and 20B are formed in a bent shape composed of two straight portions, the edge portions 20A and 20B can be easily joined, so that the three-dimensional shape portion 22 can be formed more accurately.
  • edge part 20A, 20B edge part 21A, 21B is also the same
  • the pair of notches 20 and 21 may be formed in an asymmetric shape with respect to the center line L of the base fabrics 12 and 13.
  • the notched joint portion 24 may be formed in a curved shape in the thickness direction W, or may be formed inclined with respect to the thickness direction W.
  • a three-dimensional shape portion of another embodiment having a different shape from the above-described three-dimensional shape portion 22 will be described.
  • FIGS. 7B to 11B are views showing a three-dimensional shape part of another embodiment.
  • 7A to 11A are plan views showing the base fabrics 12 and 13 before forming the three-dimensional shape portion
  • FIGS. 7B to 11B are perspective views showing the three-dimensional shape portion after formation.
  • the pair of cutout portions 31 and 32 are formed symmetrically with respect to the center line L of the base fabrics 12 and 13.
  • a pair of edge part 31A, 31B (32A, 32B) of each notch part 31 (32) is formed in the bending shape which consists of two curved parts.
  • the pair of cutout portions 31 and 32 are joined in a state of extending in the thickness direction W.
  • the notches 31 and 32 are folded in two along the fold line F2 passing through the bent portions 31C and 32C, and the pair of edge portions 31A and 31B (32A and 32B) are overlapped and joined.
  • the pair of notch portions 31 and 32 are joined in a curved shape in the thickness direction W at the notch joining portion 33 that is curved.
  • the three-dimensional shape part 30 of the airbag 10 is three-dimensionally formed in the thickness direction W.
  • the pair of cutout portions 35 and 36 are formed asymmetrically with respect to the center line L of the base fabrics 12 and 13. Further, the pair of edge portions 35A and 35B (36A and 36B) of each notch portion 35 (36) is formed in a bent shape composed of two linear portions. In one notch portion 36, a convex bent portion 36C is formed between the pair of edge portions 36A and 36B, and the pair of edge portions 36A and 36B are axisymmetric with respect to a fold line F3 passing through the bent portion 36C. Is formed.
  • the pair of cutout portions 35 and 36 are joined in a state of extending in the thickness direction W.
  • the notches 35 and 36 are folded in two along a fold line F3 passing through the bent portions 35C and 36C, and a pair of edge portions 35A and 35B (36A and 36B) are overlapped and joined.
  • the pair of notch portions 35 and 36 are joined at an inclined notch joining portion 37 so as to be inclined with respect to the thickness direction W.
  • the three-dimensionally shaped portion 34 of the airbag 10 is three-dimensionally formed in the thickness direction W.
  • the inflating portion 17 is inflated, the three-dimensional shape portion 34 is inflated so as to be inclined with respect to the thickness direction W, and one side of the three-dimensional shape portion 34 is inflated smaller than the other side.
  • the pair of cutout portions 41 and 42 are formed asymmetrically with respect to the center line L of the base fabrics 12 and 13.
  • the pair of edge portions 41A and 41B of one notch portion 41 are formed in a bent shape composed of two straight portions, and the pair of edge portions 42A and 42B of the other notch portion 42 are two curved portions. It is formed in the bending shape which consists of.
  • the pair of cutout portions 41 and 42 are joined in a state of extending in the thickness direction W.
  • a pair of notch parts 41 and 42 are folded in half by the fold line F4 which passes along each bending part 41C, 42C, and a pair of edge part 41A, 41B (42A, 42B) is piled up and joined.
  • One notch portion 41 is linearly joined in the thickness direction W at the straight portion 43A of the notch joint portion 43, and the other notch portion 42 is thick at the curved portion 43B of the notch joint portion 43. Joined in a curved shape in the vertical direction W.
  • the pair of notches 41 and 42 are joined in the thickness direction W at the notch joining portion 43 including the straight portion 43A and the curved portion 43B.
  • the three-dimensional shape part 40 of the airbag 10 is three-dimensionally formed in the thickness direction W.
  • the inflating portion 17 is inflated, a part of the three-dimensional shape portion 40 is inflated so as to bend in the thickness direction W, and one side of the three-dimensional shape portion 40 is inflated more than the other side.
  • the pair of cutout portions 45 and 46 are formed asymmetrically with respect to the center line L of the base fabrics 12 and 13.
  • the pair of edge portions 45A and 45B of one notch portion 45 are formed in a bent shape composed of two straight portions, and the pair of edge portions 46A and 46B of the other notch portion 46 are two curved portions. It is formed in the bending shape which consists of.
  • a convex bent portion 46C is formed between the pair of edge portions 46A and 46B, and the pair of edge portions 46A and 46B are symmetrical with respect to a fold line F5 passing through the bent portion 46C. Is formed.
  • the pair of cutout portions 45 and 46 are joined in a state of extending in the thickness direction W.
  • a pair of notch parts 45 and 46 are folded in two by the fold line F5 which passes through each bending part 45C, 46C, and a pair of edge part 45A, 45B (46A, 46B) is piled up and joined.
  • One notch portion 45 is linearly joined in the thickness direction W at a straight portion 47A of the notch joining portion 47, and the other notch portion 46 is thick at a curved portion 47B of the notch joining portion 47. Joined in a curved shape in the vertical direction W.
  • the pair of notch portions 45 and 46 are joined in the thickness direction W at the notch joining portion 47 including the straight portion 47A and the curved portion 47B.
  • the three-dimensionally shaped portion 44 of the airbag 10 is three-dimensionally formed in the thickness direction W.
  • the inflating portion 17 is inflated, a part of the three-dimensional shape portion 44 is inflated so as to bend in the thickness direction W, and one side of the three-dimensional shape portion 44 is inflated smaller than the other side.
  • the three-dimensional shape portion is formed in various shapes, and by appropriately forming the three-dimensional shape portion, the three-dimensional shape portion that matches the side space 86 can be easily and accurately formed. .
  • the pair of cutout portions 51 and 52 are formed asymmetrically with respect to the center line L of the base fabrics 12 and 13.
  • a pair of edge portions 51A and 51B (52A and 52B) of each notch 51 (52) is formed in a bent shape composed of two straight portions.
  • the edges 51 ⁇ / b> A and 51 ⁇ / b> B of one notch 51 are longer than the edges 52 ⁇ / b> A and 52 ⁇ / b> B of the other notch 52.
  • the pair of cutout portions 51 and 52 are joined in a state of extending in the thickness direction W.
  • a pair of notch parts 51 and 52 are folded in half by the fold line F6 which passes through each bending part 51C, 52C, and a pair of edge part 51A, 51B (52A, 52B) is piled up and joined.
  • the pair of cutout portions 51 and 52 are joined linearly in the thickness direction W at the straight cutout joining portion 53. Thereby, the three-dimensionally shaped portion 50 of the airbag 10 is three-dimensionally formed in the thickness direction W.
  • the peripheral joint portion 14 is disposed at a position shifted to one side in the thickness direction W in accordance with the difference in length between the edge portions 51A, 51B, 52A, and 52B.
  • a vent hole or the like can be provided on the peripheral surface S between the two side surfaces M ⁇ b> 3 and M ⁇ b> 4 composed of the opposing base fabrics 12 and 13.
  • the vent hole is provided in the circumferential surface S by forming an opening in the base fabric 12, for example.
  • the three-dimensional shape portion is formed at one corner of the inflatable portion 17, but the three-dimensional shape portion may be formed at a plurality of corner portions of the inflatable portion 17. That is, the three-dimensionally shaped part is formed at one or more corners located at the peripheral edge 19 of the inflating part 17.
  • FIG. 12 is a view showing the airbag 10 having a plurality of three-dimensionally shaped portions, and shows a manufacturing procedure of the airbag 10 corresponding to FIG.
  • the opposing base fabrics 12 and 13 have four pairs of cutout portions 20, 21 (60, 61) (62, 63) (64, 65).
  • Each of the pair of notches 20, 21 (60, 61) (62, 63) (64, 65) has a pair of edge portions formed in a bent shape (for example, an L shape or a V shape).
  • the peripheral edge portions 15 are formed at overlapping positions.
  • the pair of notches 20, 21 (60, 61) (62, 63) (64, 65) are respectively thickened.
  • joining is performed at the notch joining portions 24 and 66 to 68 (see FIG. 12C).
  • the four three-dimensionally shaped portions 22 and 70 to 72 are formed at the four corners of the inflating portion 17.
  • the airbag 10 and the inflatable portion 17 are expanded to a predetermined thickness.
  • the first three-dimensional shape portion 22 includes a pair of concave cutout portions 20 and 21 and is formed on the top portion of the inflatable portion 17.
  • the second three-dimensionally shaped portion 70 includes a pair of V-shaped cutout portions 60 and 61 and is formed in the middle of the front portion of the inflating portion 17 in the vertical direction.
  • the third three-dimensional shape portion 71 includes a pair of V-shaped cutout portions 62 and 63 and is formed in front of the bottom portion of the expansion portion 17.
  • the fourth three-dimensional shape portion 72 includes a pair of concave cutout portions 64 and 65 and is formed at the rear of the bottom portion of the inflatable portion 17. A portion between the third three-dimensional shape portion 71 and the fourth three-dimensional shape portion 72 is the bottom surface of the inflating portion 17.
  • the airbag 10 When the plurality of three-dimensionally shaped portions 22, 70 to 72 are formed in the airbag 10, the airbag 10 can be further prevented from contracting. In addition, since the airbag 10 is deployed quickly and stably, the impact absorbing characteristics of the airbag 10 can be reliably exhibited. Since the airbag 10 is accurately inflated on the side of the fuselage 92, the airbag 10 can reliably absorb the impact of the occupant 90.

Landscapes

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

Abstract

Selon la présente invention, le coussin gonflable d'un dispositif à coussin gonflable latéral se déploie de façon stable même dans un véhicule dans lequel la distance comprise entre un occupant et une paroi latérale est petite. Un coussin gonflable (10) permettant de protéger le corps (92) d'un occupant (90) qui est sous les épaules (91) est disposé entre l'occupant (90) et une paroi latérale du véhicule et protège l'occupant (90). Le coussin gonflable (10) possède une section déploiement (17) formée par la jonction de tissus de base (12, 13) opposés et possède une section (22) tridimensionnelle. Les tissus de base (12, 13) opposés possèdent une paire de découpes formées au niveau des positions chevauchantes des bords périphériques (15) des tissus de base (12, 13), les positions chevauchantes étant chacune situées sur une partie de chacun des bords périphériques (15), et qui sont jointes tout en étant étirées dans le sens de l'épaisseur de la section déploiement (17). La section tridimensionnelle (22) est située sur le bord périphérique (19) de la section expansion (17) et formée de façon tridimensionnelle dans le sens de l'épaisseur de la section déploiement (17) par la paire jointe de découpes.
PCT/JP2013/058297 2012-04-09 2013-03-22 Dispositif de coussin gonflable latéral WO2013153933A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-088744 2012-04-09
JP2012088744A JP2013216211A (ja) 2012-04-09 2012-04-09 サイドエアバッグ装置

Publications (1)

Publication Number Publication Date
WO2013153933A1 true WO2013153933A1 (fr) 2013-10-17

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WO (1) WO2013153933A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015124164A1 (fr) * 2014-02-21 2015-08-27 Audi Ag Airbag latéral pour véhicules
JP2017197017A (ja) * 2016-04-27 2017-11-02 マツダ株式会社 サイドエアバッグ装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6438116B2 (ja) 2015-03-30 2018-12-12 オートリブ ディベロップメント エービー 車両用サイドエアバッグ装置
JP7100163B2 (ja) * 2019-02-09 2022-07-12 オートリブ ディベロップメント エービー サイドエアバッグ装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0811658A (ja) * 1994-07-01 1996-01-16 Toyoda Gosei Co Ltd エアバッグの製造方法
JP2006224817A (ja) * 2005-02-17 2006-08-31 Toyoda Gosei Co Ltd エアバッグ
JP2010215104A (ja) * 2009-03-17 2010-09-30 Nippon Plast Co Ltd エアバッグ
JP2011025909A (ja) * 2009-07-03 2011-02-10 Toyoda Gosei Co Ltd サイドエアバッグ装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0811658A (ja) * 1994-07-01 1996-01-16 Toyoda Gosei Co Ltd エアバッグの製造方法
JP2006224817A (ja) * 2005-02-17 2006-08-31 Toyoda Gosei Co Ltd エアバッグ
JP2010215104A (ja) * 2009-03-17 2010-09-30 Nippon Plast Co Ltd エアバッグ
JP2011025909A (ja) * 2009-07-03 2011-02-10 Toyoda Gosei Co Ltd サイドエアバッグ装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015124164A1 (fr) * 2014-02-21 2015-08-27 Audi Ag Airbag latéral pour véhicules
CN105829170A (zh) * 2014-02-21 2016-08-03 奥迪股份公司 用于车辆的侧气囊装置
CN105829170B (zh) * 2014-02-21 2018-02-02 奥迪股份公司 用于折叠车辆的侧气囊装置的方法
US10207670B2 (en) 2014-02-21 2019-02-19 Audi Ag Side airbag for vehicles and method for folding a side airbag
JP2017197017A (ja) * 2016-04-27 2017-11-02 マツダ株式会社 サイドエアバッグ装置

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