WO2019244767A1 - Dispositif coussin de sécurité gonflable - Google Patents

Dispositif coussin de sécurité gonflable Download PDF

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Publication number
WO2019244767A1
WO2019244767A1 PCT/JP2019/023464 JP2019023464W WO2019244767A1 WO 2019244767 A1 WO2019244767 A1 WO 2019244767A1 JP 2019023464 W JP2019023464 W JP 2019023464W WO 2019244767 A1 WO2019244767 A1 WO 2019244767A1
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WO
WIPO (PCT)
Prior art keywords
airbag
seat
pair
portions
inflator
Prior art date
Application number
PCT/JP2019/023464
Other languages
English (en)
Japanese (ja)
Inventor
坂本　浩
匡俊 横田
岡田　典久
伸一 竹内
Original Assignee
Ｊｏｙｓｏｎ Ｓａｆｅｔｙ Ｓｙｓｔｅｍｓ Ｊａｐａｎ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 Ｊｏｙｓｏｎ Ｓａｆｅｔｙ Ｓｙｓｔｅｍｓ Ｊａｐａｎ株式会社 filed Critical Ｊｏｙｓｏｎ Ｓａｆｅｔｙ Ｓｙｓｔｅｍｓ Ｊａｐａｎ株式会社
Publication of WO2019244767A1 publication Critical patent/WO2019244767A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
    • B60N2/427—Seats or parts thereof displaced during a crash
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/207—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/2334—Expansion control features
    • B60R21/2338—Tethers

Definitions

  • the present disclosure relates to an airbag device.
  • the airbag in the configuration in which the airbag is deployed from the headrest or the seat back, it is necessary to cross the headrest or the occupant's head in order to deploy the airbag forward of the head, and the airbag may not be deployed properly.
  • the present disclosure aims to provide an airbag device that can stably deploy an airbag.
  • An airbag device is disposed on an inflator, an airbag that is deployed by gas supplied from the inflator, and a seatback or a headrest of a seat, and gas is supplied by the inflator.
  • a pair of front inflating portions extending from the pair of side inflating portions to the center side and connected to each other at the center to cover the front of the occupant.
  • a pair of support points provided on both sides of the seat and in the width direction of the seat; and a connecting member that connects the airbag and the pair of support points.
  • an airbag device capable of stably deploying an airbag.
  • FIG. 2 is a perspective view of the airbag device according to the embodiment when the airbag is deployed. It is a side view of the airbag apparatus shown in FIG. It is a front view of the airbag apparatus shown in FIG.
  • FIG. 4 is a schematic diagram showing a schematic configuration of the airbag in FIGS. 1 to 3 in a plan view.
  • FIG. 3 is a side view of the airbag device according to the embodiment when the airbag is stored.
  • FIG. 6 is an enlarged view of the vicinity of a storage unit in FIG. 5. It is a perspective view which shows the installation structure of the accommodation part in the frame inside a seatback.
  • FIG. 8 is an exploded perspective view of the frame and the housing shown in FIG. 7.
  • the x direction is the front-back direction of the vehicle
  • the x positive direction side is the vehicle front
  • the x negative direction side is the vehicle rear
  • the y direction is the width direction of the vehicle
  • the y positive direction side is the vehicle right side
  • the y negative direction side is the vehicle left side.
  • the z direction is the vertical direction, with the z positive direction side being upward and the z negative direction side being downward.
  • FIG. 1 is a perspective view of the airbag device 10 according to the embodiment when the airbag is deployed.
  • FIG. 2 is a side view of the airbag device 10 shown in FIG.
  • FIG. 3 is a front view of the airbag device 10 shown in FIG.
  • FIG. 4 is a schematic diagram showing a schematic configuration of the airbag 20 in FIGS. 1 to 3 in plan view.
  • the airbag device 10 is mounted on a seat 60 of a vehicle.
  • the seat 60 includes a seat portion 61 on which the occupant D sits, a seat back 62 having a lower end connected to a rear end of the seat portion 61, and a headrest 63 provided at an upper end of the seat back 62.
  • a frame 64 is arranged inside the seat back 62.
  • the seat 60 is also provided with general components mounted on the vehicle seat, such as a seat belt, a tongue, a buckle, and a retractor.
  • the airbag device 10 protects the occupant D from collision in all directions, front, rear, right and left, by the deployed airbag 20 in a state where the occupant D is seated on the seat 60.
  • the airbag 20 is formed in a tubular shape that covers the headrest 63 of the seat 60 and the periphery of the head H of the occupant D seated on the seat 60 and is open at the top and bottom.
  • FIGS. 1 to 4 show a state in which a dummy doll for a collision test is seated on the seat portion 61 of the seat 60 as a model of the occupant D to be protected.
  • the dummy doll is, for example, WorldSID (International Unified Side Impact Dummy: World @ Side @ Impact @ Dummy) AM50 (50th percentile of American adult males).
  • the dummy doll is seated in a standard sitting posture (regular state) determined by the collision test method, and the seat 60 is located at a reference setting position corresponding to the sitting posture.
  • the head H of the dummy doll faces the front of the vehicle (front of the seat).
  • the airbag device 10 includes an airbag 20, an inflator 30, and a housing 40.
  • the inflator 30 and the housing section 40 will be described later with reference to FIGS.
  • the airbag 20 is configured as a tubular integral bag that is inflated and deployed so as to cover the head H of the occupant D from the front and both left and right sides. More specifically, the airbag 20 has a rear inflation portion 21, a pair of side inflation portions 22A and 22B, and a pair of front inflation portions 23A and 23B.
  • the rear inflatable portion 21 is deployed at a position behind the headrest 63 so as to face the headrest 63 and the seat back 62 as shown in FIGS. As shown in FIG. 4, the rear inflatable portion 21 is connected to the rear end of the pair of lateral inflatable portions 22A and 22B via rear bent portions 74A and 74B at both ends in the y direction. .
  • the rear bent portions 74A and 74B are bent at substantially right angles to the x positive direction side to extend the pair of side expanding portions 22A and 22B forward from the rear expanding portion 21 as shown in FIGS. .
  • the pair of lateral expansion portions 22A and 22B are respectively disposed on the left and right sides of the head H of the occupant D.
  • the pair of lateral expansion portions 22A and 22B are formed such that the front side has a longer dimension in the vertical direction than the rear side and is longer than the lower side.
  • the length of the front side is substantially the same as the vertical dimension of the front expansion portions 23A and 23B.
  • the pair of side inflatable portions 22A, 22B are connected to the pair of front inflatable portions 23A, 23B via front bent portions 75A, 75B at front end portions.
  • the front bent portions 75A and 75B are bent at a substantially right angle toward the center in the y direction, and cover a pair of front expanding portions 23A and 23B in front of the head H of the occupant D as shown in FIGS.
  • the pair of front inflatable portions 23A and 23B are joined to each other along the z-direction at a substantially central position in the y-direction by a central joining portion 76, whereby the front inflatable portions 23A and 23B are arranged in front of the head H of the occupant D,
  • the front of the portion H can be completely closed.
  • the pair of front inflatable portions 23A and 23B are formed in a substantially rectangular shape when viewed from the x direction, and have dimensions in the width direction and the vertical direction that can cover the entire front surface of the head H of the occupant D. ing.
  • the airbag 20 is formed by joining the both ends of the integral bag body by the joining seam by the central joint portion 76, so that the donut which surrounds the head H of the occupant D in all directions in the front-rear direction and the left-right direction. It is formed in a shape.
  • the front inflatable portions 23A and 23B are recessed forward in the y-direction substantially central portions of the front inflatable portions 23A and 23B when viewed from the occupant D side by arranging the center joint portion 76 at the center in the width direction.
  • a front recess 27 is formed.
  • the front recess 27 extends in the z-direction over the area of the central joint 76.
  • the presence of the front recess 27 on the inner surfaces of the front inflatable portions 23A and 23B increases the contact surface of the inner surfaces of the front inflatable portions 23A and 23B with the head H, and also makes the opposing angles diversified.
  • the direction in which the airbag 20 can absorb the impact on the side can be increased, and the occupant D can be protected from a collision in a wider direction.
  • the upper ends of the front inflatable portions 23A and 23B may be located above the top of the head H of the occupant D.
  • the lower end position is provided so as to cover the chest of the occupant D in the present embodiment, but may be a position that can cover at least the head H of the occupant D. It may be shorter than the dimensions of the illustrated embodiment.
  • the pair of front inflatable portions 23A and 23B have restraining portions 24A and 24B and energy absorbing (Energy Absorption: EA) portions 25A and 25B.
  • the constraining portions 24A and 24B bend and extend to the center side from the pair of lateral expansion portions 22A and 22B, respectively.
  • the EA portions 25A, 25B are connected to the center-side ends of the restraining portions 24A, 24B, and extend from the center portion to the front bent portions 75A, 75B on both sides in the y direction, thereby forming the restraining portions 24A, 24B. It is arranged to overlap on the front side.
  • the outer ends of the EA portions 25A, 25B are joined to the pair of lateral inflatable portions 22A, 22B by tip joint portions 77A, 77B provided at the front end of the pair of lateral inflatable portions 22A, 22B.
  • the pair of EA portions 25A, 25B are arranged in the y direction in front of the restraining portions 24A, 24B, and are arranged in parallel with the restraining portions 24A, 24B, and the restraining portions 24A, 24B and the EA portion are arranged.
  • 25A and 25B are arranged in front of the head H of the occupant D in a double manner.
  • the restraint portions 24A and 24B of the front inflatable portions 23A and 23B are arranged in front of the head H of the occupant D and function to protect the front side of the head H in the event of a collision.
  • the EA portions 25A and 25B limit the load applied to the restraint portions 24A and 24B of the airbag 20 when a secondary collision such as the collision of the airbag 20 with a handle or the like in front of the seat is applied to the occupant. It functions to absorb and mitigate energy.
  • the inflator 30 is attached to the inflator insertion port 26 of the rear inflating portion 21, and gas from the inflator 30 is supplied.
  • a gas flow path is formed in the order from the rear inflating portion 21 to one side inflating portion 22A, one restricting portion 24A, and one EA portion 25A.
  • a gas flow path is formed in the order of the inflating portion 22B, the other restraining portion 24B, and the other EA portion 25B.
  • FIG. 5 is a side view of the airbag device 10 according to the embodiment when the airbag is stored.
  • FIG. 6 is an enlarged view of the vicinity of the storage section 40 in FIG.
  • FIG. 7 is a perspective view showing an installation structure of the storage section 40 in the frame 64 inside the seat back 62.
  • FIG. 8 is an exploded perspective view of the frame 64 and the housing section 40 shown in FIG.
  • the airbag 20 is stored in the storage section 40 in a folded state.
  • the accommodation section 40 is attached to a frame 64 inside the seat back 62 and stored in the seat back 62, for example.
  • the accommodation section 40 is disposed so as to open upward along the direction in which the seat back 62 extends.
  • the inflator 30 is disposed below the storage section 40, and is inserted into the inflator insertion opening 26 of the airbag 20 from below the storage section.
  • the inflator insertion opening 26 penetrates, for example, the bottom wall of the housing section 40 and advances downward, and the inflator 30 is inserted.
  • the inflator 30 is, for example, of a combustion type or a cold gas type, and its operation is controlled by a control device such as a vehicle ECU.
  • the inflator 30 supplies gas generated by the operation into the airbag 20 through the inflator insertion port 26.
  • the inflator 30 is, for example, a cylinder-type inflator, and is arranged with the height direction of the seat as a longitudinal direction.
  • the inflator 30 is fixed to a bracket 31 fixed to a frame 64 by using a band 32, for example, as shown in FIG.
  • a band 32 for example, as shown in FIG.
  • two inflator insertion ports 26 are provided in the rear inflatable portion 21 and two inflators 30 are installed as shown in FIG. 4, but the number of inflators 30 may be one or two. A larger number may be used.
  • the accommodation section 40 is made of, for example, resin and is formed in a box shape, and has an upper side opened.
  • the folded airbag 20 is accommodated in the box-shaped internal space of the accommodation section 40.
  • the storage section 40 is stored above the seat back 62 when the airbag device 10 is not operated. When the airbag device 10 is operated, the surface of the seat back 62 is broken by the inflation pressure of the airbag 20, so that the airbag 20 can be inflated and deployed to the outside.
  • the airbag 20 housed in the housing section 40 is configured to include a roll folded section 71 folded in a roll shape and a bellows folded section 72 folded in a bellows shape.
  • the roll folded portion 71 is folded into a roll so as to wind upward from the front inflatable portions 23A, 23B side to the upper surface side of the lateral inflatable portions 22A, 22B in the deployed state of the airbag 20.
  • the seat is folded so that it can be easily deployed toward the front of the seat when inflated and deployed.
  • the bellows folded portion 72 is accommodated in a position above the roll folded portion 71 of the accommodation portion 40 in a state where the rear inflating portion 21 in the deployed state of the airbag 20 is folded in a bellows shape. It is easy to deploy before the part 71.
  • the inflator insertion opening 26 of the airbag 20 is not included in the roll folded portion 71 and the bellows folded portion 72, but is disposed below the roll folded portion 71, and the inflator 30 is inserted.
  • FIG. 6 for convenience of schematically showing the stored state of the roll folded portion 71 and the bellows folded portion 72, the roll folded portion 71 and the bellows folded portion 72 are illustrated as being branched from the inflator insertion opening 26.
  • the inflator insertion port 26 is provided in the rear inflatable portion 21 as described above, it is actually connected only to the bellows folded portion 72. For this reason, the roll folding part 71 and the bellows folding part 72 can supply gas to the bellows folding part 72 above first.
  • the roll folding section 71 supplies the gas in the order of the side inflating sections 22A and 22B and the front inflating sections 23A and 23B so that the side inflating sections 22A and 22B are positioned above the head H of the occupant D. And the front inflatable portions 23A and 23B are inflated and deployed at a position forward of the head H of the occupant D.
  • the arm member 43 there is a pair of arm members 43 extending from both sides in the width direction of the housing section 40 to the vehicle front side.
  • the arm member 43 is provided integrally with the housing portion 40 at both ends in the y direction of the housing portion 40 as shown in FIGS. 7 and 8, for example, and extends to the front side of the vehicle through the outside in the width direction of the frame 64.
  • the arm member 43 may be provided as a separate member from the housing section 40 and connected to another member such as the frame 64.
  • the extending direction of the arm member 43 is, for example, orthogonal to the extending direction of the frame 64 and is obliquely upward.
  • a pair of support points 41 are provided at the distal ends of the pair of arm members 43, respectively.
  • the pair of support points 41 are provided on the front side of the seat 60 with respect to the accommodation section 40 and on both sides in the width direction of the seat 60. Further, in the present embodiment, the support points 41 are arranged on the vehicle front side with respect to the frame 64.
  • the airbag 20 has a pair of tab members 42 (connecting members) for connecting the roll folded portion 71 and the support points 41 during storage.
  • the tab member 42 is a non-inflated panel formed of the same material as the airbag 20.
  • One end of the tab member 42 is connected to the support point 41 so as to be rotatable around the y-axis, and the other end is connected to the roll folding section 71.
  • the other end is connected to lower portions of the side inflatable portions 22A and 22B of the airbag 20 when the airbag 20 is deployed.
  • the tab member 42 may be any connecting member that can connect the airbag 20 and the support point 41, and may be formed of a material different from that of the airbag 20, or may be one that inflates with the inflation of the airbag 20. Good. Further, the tab member 42 may be an elongated band shape having an extending direction between one end connected to the support point 41 and the other end connected to the airbag 20, and instead of the tab member 42, It may be replaced with another band-shaped element such as a string, a band, a belt, or a strap.
  • FIGS. 9 to 13 are diagrams showing first to fifth stages of the procedure of deploying the airbag 20 by the airbag device 10 according to the embodiment, respectively.
  • the airbag 20 is folded and stored in the storage section 40 in the seed bag. Then, when a shock equal to or more than a predetermined threshold is received due to a vehicle collision or the like, the inflator 30 is operated by the ECU, and gas is started to be supplied from the inflator 30 to the airbag 20.
  • the gas when the gas starts to be supplied from the inflator 30, the gas is first supplied to the upper bellows folded portion 72 and starts to expand.
  • the bellows folded portion 72 breaks the surface of the seat back 62 while developing the bellows shape, advances to the seat rear side, and starts to expand upward and to the seat rear side.
  • the rear expanding portion 21 is formed. Thereafter, when the gas starts to be supplied to the roll folding section 71, the roll folding section 71 starts to expand from the state of being folded in the roll shape so as to be developed. At this time, the roll folding portion 71 receives a reaction force from the rear expanding portion 21 deployed on the seat rear side to the front and upper sides of the vehicle due to the expanding force generated by the expansion. By this reaction force, the roll folding part 71 is deployed so as to get over the headrest 63 diagonally upward. That is, the rear inflation portion 21 which is first developed functions as a base for promoting the deployment direction of the roll folding portion 71 forward. Moreover, since the roll folding part 71 is wound upward, as described above, it is rotated downward and deployed.
  • the expansion of the roll folding part 71 proceeds, and first, the lateral expansion parts 22A and 22B begin to expand.
  • the lateral expansion portions 22A and 22B expand toward the front of the vehicle and upward.
  • the tab member 42 attached to the lower part of the side inflatable portions 22A, 22B expands between the airbag 20 and the support point 41 as the inflates of the side inflatable portions 22A, 22B progress.
  • Generate tension With this tension, a new pulling force is applied to the airbag 20 toward the support point 41 side (downward in this state), so that the deployment direction of the airbag 20 is changed from “the vehicle front side and the upper side” to the vehicle front side. Switch to.
  • the remaining portion of the roll folded portion 71 rotates toward the vehicle front side around the support point 41 located on the vehicle front side with respect to the housing portion 40 and the rear inflatable portion 21, and the deployment to the vehicle front side is promoted. You.
  • the support point 41 is disposed on the vehicle front side of the seat back 62 of the seat 60. For this reason, the timing at which the deployment direction of the airbag 20 is switched from “vehicle front side and upper side” to the vehicle front side can be delayed, and the deployment direction can be changed after the side inflatable portions 22A and 22B are fully deployed. As a result, the airbag 20 can be easily deployed beyond the head H of the occupant D. That is, it is preferable that the position of the support point 41 be located as far as possible on the front side of the vehicle.
  • the lateral inflatable portions 22A and 22B are formed from the roll folding portion 71 to cover the side of the head H of the occupant D.
  • the remaining portion of the roll folded portion 71 has advanced forward from the head H, and the top portions 29A and 29B of the side inflatable portions 22A and 22B abut against the ceiling, and the upward force due to the reaction force from the ceiling.
  • the deployment direction is switched downward and begins to deploy downward from the vehicle ceiling.
  • the front inflated portions 23A and 23B are formed from the roll folded portion 71, and also cover the front portion of the head H of the occupant D, whereby the omnidirectional direction of the occupant D in the front, rear, left, and right directions is changed.
  • An overlying airbag 20 is formed.
  • the tab member 42 extends, for example, along the upper end of the seat back 62 of the seat 60 or the surface of the upper front surface in the front-rear direction.
  • the airbag 20 has advanced outward from the seat back 62 through a slit or the like provided at the front end, and the advanced position has shifted to the front side with the deployment of the airbag 20.
  • the airbag device 10 of the present embodiment is disposed on the inflator 30, the airbag 20 that is deployed by the gas supplied from the inflator 30, and the seat back 62 of the seat 60, and the airbag 20 before the gas is supplied by the inflator 30.
  • the airbag 20 includes a rear inflatable portion 21 deployed on the back side of the seat 60, a pair of side inflatable portions 22A and 22B extending forward from both sides of the rear inflatable portion 21 in the seat width direction, and a pair of side inflatable portions 22A. , 22B extending to the center side and connected to each other at the center and covering the front of the occupant D, and has a pair of front inflatable portions 23A, 23B. It has a pair of support points 41 provided on both sides and a tab member 42 connecting the airbag 20 and the pair of support points 41.
  • the tab member 42 connecting the airbag 20 and the support point 41 causes the airbag 20 to move in the direction toward the support point 41.
  • a force that is, a force for rotating the airbag 20 forward about the support point 41 can be applied to the airbag 20.
  • the pair of support points 41 are disposed on the front side of the seat 60 with respect to the accommodation section 40 and the seat back 62, the center of rotation of the airbag 20 can be more forward, and the airbag 20 can be moved forward. It can be more easily developed.
  • the airbag device 10 of the present embodiment can deploy the airbag 20 so as to reliably exceed the headrest 63 and the head H of the occupant D, and can deploy the airbag 20 stably.
  • the side inflatable portions 22A and 22B extend from the rear side to the front side of the head H of the occupant D when the airbag 20 is deployed.
  • the undeployed portion at the tip can move forward as soon as possible beyond the head H of the occupant D.
  • the tab member 42 since the tab member 42 is connected to the side inflatable portions 22A and 22B of the airbag 20, the tab member 42 rotates the airbag 20 forward during deployment of the side inflatable portions 22A and 22B. The movement can be promoted, and the undeployed portion of the airbag 20 can be easily moved to the front side beyond the headrest 63 and the head H of the occupant D. Thus, the deployment of the airbag 20 can be further stabilized.
  • the tab member 42 is a non-inflated panel formed of the same material as the airbag 20, the tab member 42 can be formed integrally with the airbag 20. 20 can be improved in the accuracy of the connection position. Further, since the tab member 42 is made of the same material as the airbag 20, the durability of the tab member 42 can be improved as well as the airbag 20.
  • the support point 41 can be reliably arranged on the front side of the vehicle, and the position of the support point 41 can be easily adjusted, so that the deployment of the airbag 20 can be further stabilized.
  • the configuration in which the storage unit 40 of the airbag device 10 is stored in the seatback 62 has been described, but the configuration in which the storage unit 40 is stored in the headrest 63 may be used.
  • the airbag 20 has a structure in which a plurality of panels are sewn and integrally formed.
  • the airbag 20 may be a so-called one-piece woven (OPW) type.
  • the support point 41 is provided on the arm member 43 built in the seat back 62, that is, the configuration in which the position of the support point 41 is set in the seat back 62 is exemplified. Since the position is preferably located on the vehicle front side as much as possible, a configuration in which the position of the support point 41 is located on the vehicle front side with respect to the seat back 62 may be employed. For example, as the airbag 20 is inflated, the distal end of the arm member 43 projects from the inside of the seat back 62 toward the front of the vehicle, so that the support point 41 can be disposed on the front side of the vehicle with respect to the seat back 62. Further, the position of the support point 41 may be moved stepwise according to the stage of deployment of the airbag 20, and may be arranged at an optimal position in each stage.
  • the tab member 42 is connected to the side inflatable portions 22A and 22B of the airbag 20 in the above-described embodiment.
  • the tab member 42 may be connected to the front inflatable portions 23A and 23B of the airbag 20. Good.
  • Airbag apparatus 20 Airbag 21 Rear inflation part 22A, 22B Side inflation part 23A, 23B Front inflation part 24A, 24B Restraining part 25A, 25B EA part 30 Inflator 40 Housing part 41 Support point 42 Tab member (connecting member) 43 Arm member 60 Seat 61 Seat part 62 Seat back 63 Headrest 64 Frame D Occupant H Head

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Air Bags (AREA)
  • Seats For Vehicles (AREA)

Abstract

L'invention concerne un dispositif coussin de sécurité gonflable comprenant : un dispositif de gonflage (30) ; un coussin de sécurité gonflable (20) qui est dilaté au moyen d'un gaz fourni par le dispositif de gonflage (30) ; et une partie de réception (40) qui est disposée dans le dossier de siège (62) d'un siège, et qui reçoit le coussin de sécurité gonflable (20) lorsque le coussin de sécurité gonflable n'est pas libéré, avant l'alimentation en gaz par le dispositif de gonflage (30). Le coussin de sécurité gonflable (20) comprend : deux points d'appui (41) qui sont disposés sur les côtés respectifs, dans le sens de la largeur, du siège (60), davantage du côté avant du siège (60) que la partie de réception (40) ; et des éléments languettes (42) qui relient le coussin de sécurité gonflable et les deux points d'appui (41).
PCT/JP2019/023464 2018-06-22 2019-06-13 Dispositif coussin de sécurité gonflable WO2019244767A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018119022A JP7104569B2 (ja) 2018-06-22 2018-06-22 エアバッグ装置
JP2018-119022 2018-06-22

Publications (1)

Publication Number Publication Date
WO2019244767A1 true WO2019244767A1 (fr) 2019-12-26

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PCT/JP2019/023464 WO2019244767A1 (fr) 2018-06-22 2019-06-13 Dispositif coussin de sécurité gonflable

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US11427150B1 (en) * 2021-07-12 2022-08-30 Ford Global Technologies, Llc Seatback supported airbags releasably connected by a buckle and clip

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US11427150B1 (en) * 2021-07-12 2022-08-30 Ford Global Technologies, Llc Seatback supported airbags releasably connected by a buckle and clip

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