WO2023106011A1 - Airbag device - Google Patents

Airbag device Download PDF

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Publication number
WO2023106011A1
WO2023106011A1 PCT/JP2022/041478 JP2022041478W WO2023106011A1 WO 2023106011 A1 WO2023106011 A1 WO 2023106011A1 JP 2022041478 W JP2022041478 W JP 2022041478W WO 2023106011 A1 WO2023106011 A1 WO 2023106011A1
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WO
WIPO (PCT)
Prior art keywords
seat
airbag
inter
center side
vehicle
Prior art date
Application number
PCT/JP2022/041478
Other languages
French (fr)
Japanese (ja)
Inventor
優斗 小林
努 桜井
Original Assignee
オートリブ ディベロップメント エービー
優斗 小林
努 桜井
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.)
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Application filed by オートリブ ディベロップメント エービー, 優斗 小林, 努 桜井 filed Critical オートリブ ディベロップメント エービー
Publication of WO2023106011A1 publication Critical patent/WO2023106011A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • 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

Definitions

  • the present invention relates to an airbag device applied to a vehicle having two or more seats arranged side by side in the vehicle width direction.
  • Patent Document 1 describes a far-side airbag device that can protect the occupant against impact from the far side as this type of airbag device.
  • This far-side airbag device includes an airbag and an inflator that ejects gas for deploying and inflating the airbag.
  • the airbag is fixed to the seat frame of the backrest portion of the vehicle seat and is deployed and inflated toward the center of the vehicle compartment.
  • Patent Document 1 describes a mode in which forward deployment and inflation of an airbag are accelerated rather than upward deployment and inflation when inflation gas is ejected from an inflator.
  • conventional airbag devices do not consider preventing deformation of the seat in the event of a side collision. Therefore, if the seat is greatly deformed during a side collision, the conventional airbag device may not be able to satisfy the performance standards such as the amount of movement of the head. In addition, much time and money are required for development to improve the durability of the seat itself.
  • the present invention has been made in view of such circumstances, and aims to improve the occupant restraint performance by assisting the durability of the seat by means of an airbag that inflates and deploys between the seats in the event of a side collision of the vehicle.
  • the main object is to provide an airbag device capable of
  • Autonomous vehicles eliminate the need for driving operations, and increase the degree of freedom regarding the posture and state of the occupants while driving.
  • the front row seats are rotated 180 degrees from the forward direction with respect to the vehicle, and the vehicle is run while a passenger seated in the front row seat converses face-to-face with a passenger seated in the back row seat. is also assumed.
  • a second object of the present invention is to provide an airbag device that suppresses deformation of the seat even in such an automatically driven vehicle, thereby improving occupant restraint performance.
  • the present invention provides an airbag device for use in a vehicle having at least a first seat and a second seat arranged side by side in a vehicle width direction of the vehicle,
  • a center side airbag module having a center side airbag that inflates and deploys to protect the occupant on the center side in the vehicle width direction of the occupant seated in the first seat, and an inflator that injects gas for inflating the center side airbag.
  • It has an inter-seat airbag that inflates and deploys to fill a space between the first and second seats to suppress deformation of the first seat, and an inflator that injects gas for inflating the inter-seat airbag.
  • an inter-seat airbag module The center side airbag module is provided on the center side of the first seat in the vehicle width direction, and the inter-seat airbag module is an airbag device provided on the center side of the second seat in the vehicle width direction.
  • the inter-seat airbag contacts the side surfaces of the backrest portions of the first seat and the second seat and presses the side portions of the backrest portions against each other when inflated and deployed. You may do so.
  • the gas pressure inside the seat-to-seat airbag may be higher than that of the center side airbag when inflation and deployment are completed.
  • the inter-seat airbag may be configured to be in non-contact with the occupant seated in the first seat when the inflation and deployment are completed.
  • the present invention includes a second center side airbag that inflates and deploys at the vehicle width direction center side of an occupant seated on a second seat to protect the occupant, and an inflator that injects gas for inflating the second center side airbag.
  • the second center side airbag module is provided on the center side of the second seat in the vehicle width direction, and A second inter-seat airbag is inflated and deployed so as to fill a space between the first and second seats to suppress deformation of the first seat, and gas is injected to inflate the second inter-seat airbag.
  • a second inter-seat airbag module having an inflator, and the second inter-seat airbag module may be provided on the center side of the first seat in the vehicle width direction.
  • a vehicle is capable of running in a state in which the first seat and the second seat are rotated from a forward facing state with respect to the vehicle, A center side airbag module provided at one end in the vehicle width direction of the backrest of the first seat, a third center side airbag module provided at the other end, and a backrest of the second seat.
  • inter-seat airbag module provided at one end in the vehicle width direction and a third inter-seat airbag module provided at the other end, a state acquiring means for acquiring and recording respective states of the first sheet and the second sheet; Based on the information acquired by the state acquiring means, the airbag necessary for restraining and protecting the occupant seated in the first seat or the second seat from moving in the direction in which the inertial force acts is installed.
  • a selection means to select; and control means for sending a signal to the inflator to inflate and deploy the airbag selected by the selection means at the time of a side collision.
  • control means transmits a signal to the inflator so that the inter-seat airbag provided on the other seat adjacent to the seat provided with the airbag selected by the selection means is inflated and deployed. may be provided.
  • one seat is equipped with a center side airbag
  • the other seat is equipped with an inter-seat airbag.
  • the center side airbag is inflated and deployed to protect the occupant's center side (head, shoulders, abdomen, waist) in the vehicle width direction.
  • the inter-seat airbag is inflated and deployed so as to fill the space between the seats arranged in the width direction of the vehicle.
  • the occupant seated in the first seat moves in the lateral direction (toward the center of the vehicle) largely above the shoulder, but the inflated and deployed center side airbag moves the occupant in the lateral direction. restrict movement.
  • the inter-seat airbag that is inflated and deployed between the first and second seats suppresses deformation of the first seat on which the occupant is seated and protected by the center sight airbag.
  • the present invention it is possible to prevent the performance of the center side airbag from being hindered, such as not satisfying the performance standard for the amount of head movement due to deformation of the seat.
  • the present invention reduces problems caused by deformation of the seat when compared to conventional far side airbag systems, resulting in improved occupant restraint performance.
  • the gas pressure inside the inter-seat airbag is higher than that of the center side airbag when the inflation and deployment are completed. Further, in order to increase the pressure inside the inter-seat airbag, it is preferable that the inter-seat airbag is configured to inflate and deploy to a position where it does not come into contact with the occupant seated in the first seat.
  • the airbags that need to be deployed to protect the occupants differ depending on the orientation of the seat relative to the direction of travel of the vehicle.
  • a state obtaining means for obtaining and recording the respective states of the first and second seats, and an occupant seated in the first or second seat based on the information obtained by the state obtaining means.
  • a selection means for selecting an airbag necessary for restraining and protecting the movement in the direction in which the inertial force acts, and an inflator for inflating and deploying the airbag selected by the selection means in the event of a side collision. and a control means for transmitting a signal to the occupant, it is possible to accurately protect the occupant even when the seat is rotated and used while traveling in the automatic driving mode.
  • FIG. 1A is a front view of two seats arranged in a vehicle width direction on which an airbag device according to the embodiment is mounted.
  • FIG. 1B is a top view of each sheet in FIG. 1A.
  • FIG. 2A is a diagram showing a state in which the airbag device according to the embodiment is attached to the seat frame of each seat.
  • FIG. 2B is a top view of the attached state of FIG. 2A.
  • FIG. 3A is a front view of a state in which inflation and deployment of the airbag device according to the embodiment is completed.
  • FIG. 3B is a top view of the inflated/deployed state of FIG. 3A.
  • FIG. 4A is a side view showing an example of a center side airbag.
  • FIG. 4A is a side view showing an example of a center side airbag.
  • FIG. 4B is an enlarged view of the portion in which the inflator of FIG. 4A is housed, viewed from above.
  • FIG. 4C is a perspective view showing an example of an inter-seat airbag.
  • FIG. 5A is a front view of a state in which the inflation and deployment of the airbag device according to the first modification of the embodiment is completed.
  • FIG. 5B is a top view of a state in which an airbag device according to a first modified example of the embodiment is attached;
  • FIG. 6A is a front view of two seats arranged in the vehicle width direction on which an airbag device according to a second modification of the embodiment is mounted.
  • FIG. 6B is a top view of a state in which an airbag device according to a second modification of the embodiment is attached;
  • FIG. 5A is a front view of a state in which the inflation and deployment of the airbag device according to the first modification of the embodiment is completed.
  • FIG. 5B is a top view of a state in which an air
  • FIG. 7A is a front view of a state in which inflation and deployment of an airbag device according to a second modification of the embodiment are completed;
  • FIG. 7B is a top view of the inflation/deployment completion state of FIG. 7A.
  • FIG. 8 is a block diagram showing a control unit, sensors, and memory for implementing the second modification of the embodiment.
  • FIG. 9 is a flow chart showing the state acquisition means, selection means, and control means executed in the control section.
  • the "occupant” is a frontal collision test dummy (Hybrid III AM50/NHTSA [National Highway Traffic Safety Administration: American Highway Traffic Safety Association] standard [49CFR Part 572 Subpart E and O] Human Dummy for Frontal Collision Test), having a physique equivalent to that of an average male in the United States.
  • the terms “upper” and “upper” refer to the direction of the heads of the occupants 2d and 2n seated in the normal positions of the seats 1d and 1n, may mean the foot direction of the
  • the "normal position” is the central position of the seat cushions 3d, 3n in the seat 1d, 1n in the left-right direction. It refers to the position where it touches across.
  • "front” and “front side” mean the front direction of the passengers 2d and 2n seated in the regular positions of the seats 1d and 1n
  • “rear” and “rear side” mean the back direction of the passengers 2d and 2n.
  • “left” and “left” refer to the left direction of the passengers 2d and 2n seated in the regular positions of the seats 1d and 1n
  • “right” and “right” refer to the right direction of the passengers 2d and 2n.
  • This embodiment is an airbag device 10 applied to a vehicle having one seat 1d and the other seat 1n arranged side by side in the vehicle width direction of the vehicle.
  • one seat 1d is the driver's seat and the other seat 1n is the passenger's seat.
  • the interior of the vehicle is omitted in FIG. 1A, there may be a center console between one seat 1d and the other seat 1n.
  • FIG. 1B the lower side of the paper indicates the traveling direction of the vehicle.
  • One seat 1d corresponds to the first seat
  • the other seat 1n corresponds to the second seat.
  • One seat 1d and the other seat 1n are provided with seat cushions 3d, 3n and backrests 4d, 4n, respectively.
  • Seatback frames 8d and 8n forming the framework of the one seat 1d and the other seat 1n are provided inside the backrest portions 4d and 4n.
  • Pads made of, for example, urethane foam are provided on the surfaces and surroundings of the seatback frames 8d and 8n. The surface of the pad is covered with a skin such as leather or fabric.
  • seating frames are provided on the bottom sides of the seat cushions 3d and 3n.
  • the upper surface and surroundings of the seating frame are also provided with pads, and the surfaces of the pads are covered with a skin.
  • the seating frame and seatback frames 8d and 8n are connected via a reclining mechanism.
  • the seatback frames 8d and 8n include side frames that are spaced apart from each other in the left and right direction and extend in the vertical direction, and an upper frame that connects the upper ends of the side frames. Further, a lower frame that connects the lower ends of the side frames may be further provided to form a frame shape.
  • the seatback frames 8d and 8n are molded from resin or metal, and the side frame portions can have, for example, an L-shaped cross-section or a "U"-shaped cross-section.
  • the side frame has a frame side wall portion extending in the front-rear direction when viewed from above in a horizontal cross section.
  • the airbag device 10 is fixed, for example, to the side wall portions of the frames of the one seat 1d and the other seat 1n.
  • the backrest portions 4d and 4n are provided with side support portions that protrude forward at the side portions in the vehicle width direction. There is a space in which no pad is arranged inside the side-side support portion, and the airbag device 10 is housed using this space.
  • a headrest 6 is attached to the upper ends of the backrests 4d and 4n via a rod-shaped support member 5. As shown in FIG. The support member 5 is positioned between the upper portions of the backrest portions 4 d and 4 n and the lower portion of the headrest 6 .
  • the side far from the door for the seat 1d may be referred to as the "far side".
  • the airbag system 10 of this embodiment comprises a center side airbag module 20 mounted on one seat 1d and an inter-seat airbag module 30 mounted on the other seat 1n.
  • the center side airbag module 20 is attached to the side frame portion of the seatback frame 8d of the seat 1d on the center side in the vehicle width direction, and is attached to the front side within the side support portion of the backrest portion 4d (FIGS. 2A and 2B). 2B).
  • the center side airbag module 20 inflates and deploys forward from the side support portion of the backrest portion 4d on the center side of the vehicle width direction of the occupant 2d seated on the seat 1d, and the sides of the occupant 2d (head, shoulders, abdomen, and a cylindrical inflator 22 which is installed inside the center side airbag 21 and inflates the center side airbag 21 by blowing out gas.
  • the center side airbag 21 is, for example, a cloth bag formed longer in the vertical direction than in the front-rear direction, as shown in FIG. 4A.
  • a pair of symmetrically formed base fabric panels 23 are sewn 24 at their outer peripheries so as to have thickness in the left-right direction.
  • center side airbag 21 When the center side airbag 21 is laid flat, for example, it is rolled from the front side to the rear side, or folded from the front side to the rear side in a bellows shape, so that the dimension in the front-rear direction is shortened. It becomes the storage form when it is stored in 1d.
  • the outer surface of the inflator 22 is provided with two protruding stud bolts 22a spaced apart in the longitudinal direction thereof. Using these stud bolts 22a, the center side airbag 21 wound into a roll or folded into a bellows shape is attached to the seatback frame 8d.
  • the rear side of the center side airbag 21 is fixed to the far side of the backrest portion 4d of the seat 1d, and the center side airbag 21 inflates and deploys forward from the fixing point.
  • the inter-seat airbag module 30 is attached to the side frame portion of the seatback frame 8n of the other seat 1n on the center side in the vehicle width direction, and is attached to the rear side within the side support portion of the backrest portion 4d (FIGS. 2A and 2B). 2B).
  • the inter-seat airbag module 30 inflates and deploys in the vehicle width direction from the side support portion of the backrest portion 4n so as to fill the space between the one seat 1d and the other seat 1n, thereby storing the center side airbag 21. and a cylindrical inflator 32 installed inside the inter-seat airbag 31 and inflating the inter-seat airbag 31 by ejecting gas.
  • the inter-seat airbag 31 is, for example, as shown in FIG. 4C, a bag having a required height in the vertical direction and being long in the horizontal direction. It is formed into a box shape by sewing panels.
  • the inter-seat airbag 31 When the inter-seat airbag 31 is laid flat, for example, it is rolled from the front side to the rear side, or folded from the front side to the rear side in a bellows shape, so that the dimension in the front-rear direction is shortened. This is the storage form when stored in 1n.
  • the outer surface of the inflator 32 is provided with two protruding stud bolts 32a spaced apart in the longitudinal direction thereof.
  • the inter-seat airbag 31 is fixed to the seatback frame 8n in a state of being wound into a roll or folded into a bellows shape using stud bolts 32a.
  • the gas pressure inside the inter-seat airbag 31 is set to be higher than that of the center side airbag 21 when the inflation and deployment are completed. Adjustment of the pressure between the airbags is performed by adjusting the amount of gas ejected from the inflator 22 and the inflator 32, for example.
  • the inter-seat airbag 31 when inflation and deployment are completed, the inter-seat airbag 31 is inflated and deployed to a position where it does not come into contact with the occupant seated on the seat 1d.
  • This adjustment of the inflated and deployed position is performed, for example, by setting the storage position of the inter-seat airbag module 30 to the rear side in the side support portion of the backrest portion 4n, and by setting the storage position of the center side airbag 21 in the side support portion of the backrest portion 4d. in the front side.
  • the inter-seat airbag 31 may be inflated and deployed at a position where it does not overlap with the center side airbag 21 when viewed from the side after inflation and deployment is completed. Alternatively, unless the deployment behavior of the inter-seat airbag 31 is hindered, the inter-seat airbag 31 partially overlaps the center side airbag 21 when viewed from the side in a state in which inflation and deployment is completed. You may make it expand
  • the airbag device 10 receives a signal from the sensor when the vehicle is impacted by a side collision from the far side as seen from the seat 1d (collision from the direction of the arrow in FIG. 3A).
  • the inflator 22 injects gas into the center side airbag 21, and the center side airbag 21 is inflated and deployed to protect the side portions (head, shoulders, abdomen, waist) of the occupant 2d on the center side in the vehicle width direction. do.
  • the inflator 32 receives a signal from the sensor and injects gas into the inter-seat airbag 31, thereby inflating and deploying the inter-seat airbag 31. As shown in FIG.
  • the inter-seat airbag 31 contacts the side surfaces of the backrest portions 4d and 4n of the one seat 1d and the other seat 1n in a state in which inflation and deployment is completed. For example, it comes into contact with the entire area and presses the side portions of the backrest portions 4d and 4n against each other.
  • the inter-seat airbag 31 is inflated and deployed between one seat 1d and the other seat 1n, and the center side airbag 21 is installed to suppress deformation of the seat 1d on which the passenger 2d is seated. Therefore, according to this embodiment, the problem that the performance of the center side airbag 21 is hindered due to the deformation of the seat 1d is reduced, and the occupant restraint performance is improved.
  • the inter-seat airbag 31 is configured to inflate and deploy to a position that does not contact the occupant 2d, and the gas pressure of the inter-seat airbag 31 is higher than the gas pressure of the center side airbag 21. Raise. For example, if the pressure of the inter-seat airbag 31 is increased as much as the resistance of the seat 1d permits, the effect of suppressing the deformation of the seat 1d can be further improved.
  • a second inter-seat airbag module 40 is provided behind the center side airbag module 20 of the backrest portion 4d of one seat 1d, and the backrest portion 4d of the other seat 1n is provided with a second inter-seat airbag module 40.
  • a second center side airbag module 50 is provided on the front side of the inter-seat airbag module 30 .
  • the second inter-seat airbag module 40 is inflated and deployed to fill the space between the one seat 1d and the other seat 1n, thereby suppressing deformation of the other seat 1n. and an inflator 42 for injecting gas for inflating the inter-seat airbag 41. - ⁇
  • the second center side airbag module 50 includes a center side airbag 51 that inflates and deploys toward the vehicle width direction center side of the occupant 2n seated in the other seat 1n to protect the occupant 2n, and a gas that inflates the center side airbag 51. and an inflator 52 that injects the
  • the center side airbag 51 is inflated and deployed to the other seat 1n. While protecting the sides (head, chest, abdomen, waist) of the seated occupant 2n on the center side in the vehicle width direction, an inter-seat airbag 41 is inflated and deployed between the one seat 1d and the other seat 1n. Therefore, deformation of the other seat 1n can be suppressed.
  • the vehicle of this modified example is an automatic driving vehicle, and as shown in FIG. 6A, can autonomously travel without the need of a driver while traveling in the automatic driving mode.
  • the one seat 1d and the other seat 1n are rotated 180 degrees from their respective positions, and the occupants 2d and 2n are seated with their faces facing in the direction opposite to the traveling direction of the vehicle.
  • the steering wheel 7 is not used and is slid to a position between one seat 1d and the other seat 1n.
  • the upper side of the paper indicates the traveling direction of the vehicle.
  • a third center side airbag module 60 is provided at the other end.
  • the third center side airbag module 60 includes a third center side airbag 61 that inflates and deploys to the side of an occupant 2d seated on one seat 1d, and this third center side airbag. It has an inflator 62 that supplies gas to 61 .
  • the inter-seat airbag module 30 described in the above-described embodiment is provided at one end of the backrest portion 4n of the other seat 1n in the vehicle width direction.
  • a third inter-seat airbag module 70 is provided at the other end in the width direction. As shown in FIG. 7A, the third inter-seat airbag module 70 inflates and deploys so as to fill the space between one seat 1d and the other seat 1n, and suppresses deformation of the one seat 1d. 71 and an inflator 72 that supplies gas to the third inter-seat airbag 71 .
  • the vehicle of this modified example includes a control unit 100, a sensor 101, and a memory 102, as shown in FIG.
  • the control unit 100 is specifically configured by a microcomputer having a CPU.
  • the memory 102 is configured by, for example, a ROM.
  • the control unit 100 is stored, for example, fixed to the seatback frame 8d of the backrest portion 4d.
  • the control unit 100 executes the application stored in the memory 102 in the CPU, and executes the processing shown in the flowchart of FIG. 9, for example.
  • the vehicle of this modification includes a plurality of sensors 101.
  • the sensor 101 detects, for example, the states of one seat 1d and the other seat 1n, and the states of the passengers 2d and 2n seated on each seat.
  • the states of one seat 1d and the other seat 1n detected by the sensor 101 include the orientation of each seat.
  • Regarding the orientation of each seat for example, a state in which the one seat 1d and the other seat 1n are facing in the same direction as the front of the vehicle is taken as a reference position (0 degrees), and the one seat 1d and the other seat 1n are arranged from this reference position. Detect whether it is rotated by degrees.
  • the information detected by the sensor 101 may include, in addition to the directions of the one seat 1d and the other seat 1n, the inclination angles of the backrests 4d and 4n, the presence or absence of the occupants 2d and 2n, and whether the seat belts are worn or not. .
  • the senor 101 is a sensor group consisting of a plurality of sensors 101.
  • a sensor for detecting a vehicle collision and a sensor for detecting the orientation of the one seat 1d and the other seat 1n, , 4n a sensor for detecting the load applied to the seat cushions 3n and 3d, a sensor for detecting whether or not the anchor portion of the seat belt is fixed to the buckle portion, and the like.
  • a third center side airbag module 60 is provided on the side of the backrest 4d of the seat 1d opposite to the position where the center side airbag module 20 is provided,
  • a third inter-seat airbag module 70 is provided on the side portion of the backrest portion 4d of the seat 1n opposite to the position where the inter-seat airbag module 30 is provided.
  • the control unit 100 performs control as described below to determine an inflator for operating an airbag necessary for protecting the occupant from among the inflators 22, 32, 62, and 72, Sends the activation signal to the inflator.
  • FIG. 9 is a flowchart showing an example of processing performed by the control unit 100 of this modified example.
  • the control unit 100 acquires data regarding the states of the one seat 1d and the other seat 1n from the sensor 101 (step S1).
  • step S1 data indicating that each seat is rotated 180 degrees is acquired.
  • This step S1 corresponds to the state obtaining means.
  • control unit 100 selects an airbag that needs to be deployed, for example, to protect the passenger 2d (step S2). Specifically, based on the information acquired by the state acquiring means (step S1), the control unit 100 determines whether the occupant 2d seated on the one seat 1d is in the direction in which the inertial force acts when a side collision occurs. Select the airbags you need to restrain and protect your travel to.
  • step S3 the control unit 100 determines whether or not a collision requiring deployment of the airbag has been detected.
  • step S3 if the control unit 100 has not detected a collision, the process proceeds to No, and the processes of steps S1 and S2 are repeated at regular intervals. On the other hand, in step S3, when the control unit 100 detects a collision, the process proceeds to Yes.
  • step S4 the control section 100 transmits an actuation signal to the inflator 62 of the center side airbag module 60 selected by the selection means (step S2).
  • the inflator 62 is actuated and the center side airbag 61 is inflated and deployed to restrain the occupant 2d from moving toward the center in the vehicle width direction.
  • step S4 in order to suppress deformation of the one seat 1d provided with the center side airbag 61 selected by the selection means (step S2), the inter-seat airbag 71 provided in the other seat 1n is inflated. It also signals the inflator 72 to deploy.
  • this modified example other than the above, such as the configuration of the center side airbag module 20 and the inter-seat airbag module 30, etc., is the same as that described in the above-described embodiment, so description thereof will be omitted.
  • the center side airbag 21 and the inter-seat airbag 31 are inflated and deployed.
  • the airbags that need to be deployed to protect the occupants are selected in advance before the collision to prepare for a side collision. Therefore, in this modified example, it is possible to shorten the time until the deployment of the airbag starts.
  • either one of the one seat 1d and the other seat 1n may be used as a driver's seat, or may be a seat of an automatic driving vehicle without the concept of a fixed driver's seat.
  • the one seat 1d and the other seat 1n do not have to be the front row of the vehicle, and may be the second row or other rows of a large vehicle having captain seats, for example.
  • the vehicle may have one or more seats arranged side by side in addition to the one seat 1d and the other seat 1n.
  • the vehicle may have a center console between one seat 1d and the other seat 1n.
  • the center side airbag 21 includes a head cushion portion that inflates and deploys so as to cover one side of the head of the occupant 2d seated on the seat 1d, and a torso (shoulder portion) of the occupant 2d. It may be configured to include a body cushion portion that is inflated and deployed so as to cover one side of the body (from the abdomen). In this case, the protective range of the trunk cushion may be configured to extend from the shoulders to the waist of the occupant 2d.
  • control unit 100 may be housed inside the seat cushions 3d, 3n or the headrest 6, or may be fixed to the back side of the seat cushions 3d, 3n.
  • the first modified example and the second modified example may be combined. That is, one seat 1d is equipped with a center side airbag module 20, a second inter-seat airbag 40 and a third center side airbag 60, while the other seat 1n is equipped with an inter-seat airbag module 30 and a third airbag module.
  • a configuration in which two center side airbags 50 and a third inter-seat airbag module 70 are mounted may be used.
  • control unit 100 determines that an occupant is not seated on the one seat 1d and/or the other seat 1n based on the information from the sensors that detect the loads applied to the seat cushions 3d and 3n. If so, the control means (step S3) may determine that deployment of the airbag is unnecessary.
  • the airbag device of the present invention can be applied to both front seats and rear seats of a vehicle.
  • the airbag system of the present invention can be modularized so that all or part of the airbag system can be applied to a plurality of vehicle types without depending on the layout of the vehicle.

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Abstract

The purpose of this invention is to realize an airbag device with which in the event of a side collision of a vehicle, the durability of a seat can be supported by airbag that inflates and deploys between seats, and occupant-restraining performance can be improved.　One seat 1d and another seat 1n are arranged side by side in the width direction of the vehicle. The airbag device comprises a center side airbag module 20, which has a center side airbag 21 that inflates and deploys toward the vehicle-widthwise center of the occupant 2d sitting in the one seat 1d to protect the occupant, and an inflator 22 for injecting gas that inflates the center side airbag 21. The airbag device also comprises an inter-seat airbag module 30, which has an inter-seat airbag 31 that inflates and deploys so as to fill in the space between the one seat 1d and the other seat 1n and minimizes deformation of the one seat 1d, and an inflator 32 for injecting gas that inflates the inter-seat airbag 31. The center side airbag module 20 is provided on the vehicle-widthwise center side of the one seat 1d. The inter-seat airbag module 30 is provided on the vehicle-widthwise center side of the other seat 1n.

Description

エアバッグ装置air bag device
　本発明は、車幅方向に並んで配置される２以上のシートを備えた車両に適用されるエアバッグ装置に関する。 The present invention relates to an airbag device applied to a vehicle having two or more seats arranged side by side in the vehicle width direction.
　従来から、車両の側面衝突時に、乗員を拘束して保護するエアバッグ装置が知られている。この種のエアバッグ装置では、シートに着座した乗員の側部を覆うように、エアバッグが膨張展開する。 Conventionally, there has been known an airbag device that restrains and protects an occupant in the event of a vehicle side collision. In this type of airbag device, the airbag inflates and deploys so as to cover the sides of the passenger seated on the seat.
　特許文献１には、この種のエアバッグ装置として、ファーサイドからの衝撃に対して乗員を保護できるファーサイドエアバッグ装置が記載されている。このファーサイドエアバッグ装置は、エアバッグと、エアバッグを展開膨張させるガスを噴出するインフレータとを備えている。エアバッグは、車両用シートの背もたれ部のシートフレームに固定され、車室の中央側に展開膨張される。特許文献１には、インフレータから膨張用ガスが噴出されるときに、エアバッグの上方への展開膨張よりも前方への展開膨張が促進される形態が記載されている。 Patent Document 1 describes a far-side airbag device that can protect the occupant against impact from the far side as this type of airbag device. This far-side airbag device includes an airbag and an inflator that ejects gas for deploying and inflating the airbag. The airbag is fixed to the seat frame of the backrest portion of the vehicle seat and is deployed and inflated toward the center of the vehicle compartment. Patent Document 1 describes a mode in which forward deployment and inflation of an airbag are accelerated rather than upward deployment and inflation when inflation gas is ejected from an inflator.
特開２０１６－３７２８７号公報JP 2016-37287 A
　ところで、ファーサイドエアバッグ装置自体の乗員拘束性能を向上させたとしても、シート自体の耐久性が低い場合、衝突時にシートが大きく変形し、エアバッグの本来の性能を発揮できないことになる。 By the way, even if the occupant restraint performance of the far side airbag device itself is improved, if the durability of the seat itself is low, the seat will be greatly deformed in the event of a collision, and the airbag will not be able to demonstrate its original performance.
　しかし、従来のエアバッグ装置は、側面衝突時にシートの変形を防止することは考慮されていない。このため、従来のエアバッグ装置は、側面衝突時にシートが大きく変形すると、頭部移動量などの性能基準を満足できない虞がある。また、シート自体の耐久性を向上させるには、開発のために多大な時間と費用が必要となる。 However, conventional airbag devices do not consider preventing deformation of the seat in the event of a side collision. Therefore, if the seat is greatly deformed during a side collision, the conventional airbag device may not be able to satisfy the performance standards such as the amount of movement of the head. In addition, much time and money are required for development to improve the durability of the seat itself.
　本発明は、このような事情に鑑みてなされたものであり、車両の側面衝突時、シート間に膨張展開するエアバッグによりシートの耐久性を補助し、結果として乗員の拘束性能を改善することができるエアバッグ装置を提供することを主な目的とする。 SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and aims to improve the occupant restraint performance by assisting the durability of the seat by means of an airbag that inflates and deploys between the seats in the event of a side collision of the vehicle. The main object is to provide an airbag device capable of
　また、近年、車両の自動運転化の技術が進んでいる。自動運転の車両では運転操作が不要となり、走行中の乗員の姿勢や状態について自由度が増すことになる。例えば、前列のシートを車両に対して前向き方向から１８０度回転させた状態とし、前列のシートに着座した乗員が、後列のシートに着座した乗員と顔が向き合う状態で会話しながら車両を走行させることも想定される。 Also, in recent years, the technology for automated driving of vehicles has advanced. Autonomous vehicles eliminate the need for driving operations, and increase the degree of freedom regarding the posture and state of the occupants while driving. For example, the front row seats are rotated 180 degrees from the forward direction with respect to the vehicle, and the vehicle is run while a passenger seated in the front row seat converses face-to-face with a passenger seated in the back row seat. is also assumed.
　このため、自動運転の車両では、乗員を保護するために展開が必要なエアバッグを適切に選択することが求められる。本発明は、このような自動運転の車両においてもシートの変形を抑制し、これにより乗員の拘束性能の改善を図るエアバッグ装置を提供することを第２の目的とする。 For this reason, in self-driving vehicles, it is necessary to appropriately select the airbags that need to be deployed to protect the occupants. A second object of the present invention is to provide an airbag device that suppresses deformation of the seat even in such an automatically driven vehicle, thereby improving occupant restraint performance.
　本発明は、車両の車幅方向に並んで配置される第１シートと第２シートを少なくとも備えた車両に用いられるエアバッグ装置であって、
　第１シートに着座した乗員の車幅方向中心側で膨張展開して乗員を保護するセンターサイドエアバッグと、該センターサイドエアバッグを膨張させるガスを噴射するインフレータとを有するセンターサイドエアバッグモジュールと、
　第１シートと第２シートとの間の空間を埋めるように膨張展開して第１シートの変形を抑制するシート間エアバッグと、該シート間エアバッグを膨張させるガスを噴射するインフレータとを有するシート間エアバッグモジュールと、を備え、
　センターサイドエアバッグモジュールは、第１シートの車幅方向中心側に設けられており、シート間エアバッグモジュールは、第２シートの車幅方向中心側に設けられている、エアバッグ装置である。 The present invention provides an airbag device for use in a vehicle having at least a first seat and a second seat arranged side by side in a vehicle width direction of the vehicle,
A center side airbag module having a center side airbag that inflates and deploys to protect the occupant on the center side in the vehicle width direction of the occupant seated in the first seat, and an inflator that injects gas for inflating the center side airbag. ,
It has an inter-seat airbag that inflates and deploys to fill a space between the first and second seats to suppress deformation of the first seat, and an inflator that injects gas for inflating the inter-seat airbag. an inter-seat airbag module;
The center side airbag module is provided on the center side of the first seat in the vehicle width direction, and the inter-seat airbag module is an airbag device provided on the center side of the second seat in the vehicle width direction.
　本発明は、シート間エアバッグは、膨張展開が完了した状態では、第１シート及び第２シートの各背もたれ部の側部の側面に接触し、各背もたれ部の側部を互いに押す状態となるようにしてもよい。 According to the present invention, the inter-seat airbag contacts the side surfaces of the backrest portions of the first seat and the second seat and presses the side portions of the backrest portions against each other when inflated and deployed. You may do so.
　本発明は、膨張展開が完了した状態において、シート間エアバッグは、センターサイドエアバッグよりも内部のガス圧力が高圧であるようにしてもよい。 In the present invention, the gas pressure inside the seat-to-seat airbag may be higher than that of the center side airbag when inflation and deployment are completed.
　本発明は、膨張展開が完了した状態において、シート間エアバッグは、第１シートに着座した乗員とは非接触であるようにしてもよい。 According to the present invention, the inter-seat airbag may be configured to be in non-contact with the occupant seated in the first seat when the inflation and deployment are completed.
　本発明は、第２シートに着座した乗員の車幅方向中心側で膨張展開して乗員を保護する第２センターサイドエアバッグと、該第２センターサイドエアバッグを膨張させるガスを噴射するインフレータとを有する第２センターサイドエアバッグモジュールを備え、該第２センターサイドエアバッグモジュールは、第２シートの車幅方向中心側に設けられていると共に、
　第１シートと第２シートとの間の空間を埋めるように膨張展開して第１シートの変形を抑制する第２シート間エアバッグと、該第２シート間エアバッグを膨張させるガスを噴射するインフレータとを有する第２シート間エアバッグモジュールを備え、該第２シート間エアバッグモジュールは、第１シートの車幅方向中心側に設けられていてもよい。 The present invention includes a second center side airbag that inflates and deploys at the vehicle width direction center side of an occupant seated on a second seat to protect the occupant, and an inflator that injects gas for inflating the second center side airbag. The second center side airbag module is provided on the center side of the second seat in the vehicle width direction, and
A second inter-seat airbag is inflated and deployed so as to fill a space between the first and second seats to suppress deformation of the first seat, and gas is injected to inflate the second inter-seat airbag. a second inter-seat airbag module having an inflator, and the second inter-seat airbag module may be provided on the center side of the first seat in the vehicle width direction.
　本発明は、車両は、第１シート及び第２シートが、車両に対して前向きの状態から回転させた状態で走行することが可能な車両であって、
　第１シートの背もたれ部の車幅方向の一方の端部に設けられたセンターサイドエアバッグモジュールと、他方の端部に設けられた第３センターサイドエアバッグモジュールと、第２シートの背もたれ部の車幅方向の一方の端部に設けられたシート間エアバッグモジュールと、他方の端部に設けられた第３シート間エアバッグモジュールとを有しており、
　第１シート及び第２シートのそれぞれの状態を取得して記録する状態取得手段と、
　状態取得手段が取得した情報に基づいて、第１シート又は第２シートに着座している乗員が、慣性力が作用する方向へ移動するのを拘束して保護するために必要となるエアバッグを選択する選択手段と、
　側面衝突時には、選択手段が選択したエアバッグが膨張展開するようにインフレータに信号を送信する制御手段と、を備えるようにしてもよい。 According to the present invention, a vehicle is capable of running in a state in which the first seat and the second seat are rotated from a forward facing state with respect to the vehicle,
A center side airbag module provided at one end in the vehicle width direction of the backrest of the first seat, a third center side airbag module provided at the other end, and a backrest of the second seat. It has an inter-seat airbag module provided at one end in the vehicle width direction and a third inter-seat airbag module provided at the other end,
a state acquiring means for acquiring and recording respective states of the first sheet and the second sheet;
Based on the information acquired by the state acquiring means, the airbag necessary for restraining and protecting the occupant seated in the first seat or the second seat from moving in the direction in which the inertial force acts is installed. a selection means to select;
and control means for sending a signal to the inflator to inflate and deploy the airbag selected by the selection means at the time of a side collision.
　本発明は、制御手段が、選択手段が選択したエアバッグが設けられたシートと隣接している他方のシートに設けられたシート間エアバッグが膨張展開するようにインフレータに信号を送信する手段を備えていてもよい。 In the present invention, the control means transmits a signal to the inflator so that the inter-seat airbag provided on the other seat adjacent to the seat provided with the airbag selected by the selection means is inflated and deployed. may be provided.
　本発明では、車幅方向に並ぶシートのうち、一方のシートにセンターサイドエアバッグが、他方のシートにシート間エアバッグが搭載される。そして、ファーサイドからの側面衝突が生じたとき、センターサイドエアバッグは、乗員の車幅方向中心側の側部（頭部、肩部、腹部、腰部）を保護するように膨張展開した状態となる一方、シート間エアバッグは、車幅方向に並ぶシート間の空間を埋めるように膨張展開した状態となる。 In the present invention, of the seats lined up in the vehicle width direction, one seat is equipped with a center side airbag, and the other seat is equipped with an inter-seat airbag. In the event of a side collision from the far side, the center side airbag is inflated and deployed to protect the occupant's center side (head, shoulders, abdomen, waist) in the vehicle width direction. On the other hand, the inter-seat airbag is inflated and deployed so as to fill the space between the seats arranged in the width direction of the vehicle.
　ファーサイドからの側面衝突時、第１シートに着座する乗員は、例えば肩部から上側が大きく横方向（車両の中心側）に移動するが、膨張展開したセンターサイドエアバッグが乗員の横方向の移動を拘束する。また、本発明では、第１シートと第２シートの間に膨張展開したシート間エアバッグが、センターサイトエアバッグによって保護される乗員が着座している第１シートが変形するのを抑制する。 In the event of a side collision from the far side, the occupant seated in the first seat, for example, moves in the lateral direction (toward the center of the vehicle) largely above the shoulder, but the inflated and deployed center side airbag moves the occupant in the lateral direction. restrict movement. Further, in the present invention, the inter-seat airbag that is inflated and deployed between the first and second seats suppresses deformation of the first seat on which the occupant is seated and protected by the center sight airbag.
　これにより、本発明では、シートの変形によって頭部移動量の性能基準を満足できないなど、センターサイドエアバッグの性能が阻害されるのを防止できる。本発明は、従来のファーサイドエアバッグ装置と比較すると、シートの変形に起因する問題が減少し、結果として乗員の拘束性能が向上する。 As a result, in the present invention, it is possible to prevent the performance of the center side airbag from being hindered, such as not satisfying the performance standard for the amount of head movement due to deformation of the seat. The present invention reduces problems caused by deformation of the seat when compared to conventional far side airbag systems, resulting in improved occupant restraint performance.
　本発明では、膨張展開が完了した状態において、シート間エアバッグは、センターサイドエアバッグよりも内部のガス圧力が高圧であることが好ましい。また、シート間エアバッグの内部を高圧にするために、シート間エアバッグは、第１シートに着座した乗員に接触しない位置に膨張展開するように構成することが好ましい。 In the present invention, it is preferable that the gas pressure inside the inter-seat airbag is higher than that of the center side airbag when the inflation and deployment are completed. Further, in order to increase the pressure inside the inter-seat airbag, it is preferable that the inter-seat airbag is configured to inflate and deploy to a position where it does not come into contact with the occupant seated in the first seat.
　通常のエアバッグ装置では、乗員への危害性を考慮してエアバッグ内のガスの圧力を設計する必要があるが、シート間エアバッグを乗員に接触しない位置に膨張展開する構成を採用すれば、シート間エアバッグをシートの耐性上許される限り高圧化することも可能となる。これにより、シート間エアバッグが隣接するシートの変形を抑制する効果をより向上させることができる。 In a normal airbag system, it is necessary to design the gas pressure in the airbag in consideration of the danger to the occupant. Also, it is possible to increase the pressure of the inter-seat airbag as much as the resistance of the seat permits. As a result, the effect of suppressing the deformation of the adjacent seat by the inter-seat airbag can be further improved.
　また、自動運転の車両では、車両の進行方向に対するシートの向きによって乗員を保護するために展開が必要なエアバッグは異なる。 Also, in self-driving vehicles, the airbags that need to be deployed to protect the occupants differ depending on the orientation of the seat relative to the direction of travel of the vehicle.
　本発明において、第１シート及び第２シートのそれぞれの状態を取得して記録する状態取得手段と、状態取得手段が取得した情報に基づいて、第１シート又は第２シートに着座している乗員が、慣性力が作用する方向へ移動するのを拘束して保護するために必要となるエアバッグを選択する選択手段と、側面衝突時には、選択手段が選択したエアバッグが膨張展開するようにインフレータに信号を送信する制御手段とを備えるように構成した場合は、自動運転モードで走行中、シートを回転させて使用している場合でも乗員を的確に保護することが可能となる。 In the present invention, a state obtaining means for obtaining and recording the respective states of the first and second seats, and an occupant seated in the first or second seat based on the information obtained by the state obtaining means. However, a selection means for selecting an airbag necessary for restraining and protecting the movement in the direction in which the inertial force acts, and an inflator for inflating and deploying the airbag selected by the selection means in the event of a side collision. and a control means for transmitting a signal to the occupant, it is possible to accurately protect the occupant even when the seat is rotated and used while traveling in the automatic driving mode.
図１Ａは、実施形態に係るエアバッグ装置が搭載される車幅方向に並んだ２つのシートを前方から見た図である。FIG. 1A is a front view of two seats arranged in a vehicle width direction on which an airbag device according to the embodiment is mounted. 図１Ｂは、図１Ａの各シートを上方から見た図である。FIG. 1B is a top view of each sheet in FIG. 1A. 図２Ａは、各シートのシートフレームに実施形態に係るエアバッグ装置が取り付けられた状態を示す図である。FIG. 2A is a diagram showing a state in which the airbag device according to the embodiment is attached to the seat frame of each seat. 図２Ｂは、図２Ａの取り付け状態を上方から見た図である。FIG. 2B is a top view of the attached state of FIG. 2A. 図３Ａは、実施形態に係るエアバッグ装置の膨張展開が完了した状態を前方から見た図である。FIG. 3A is a front view of a state in which inflation and deployment of the airbag device according to the embodiment is completed. 図３Ｂは、図３Ａの膨張展開完了状態を上方から見た図である。FIG. 3B is a top view of the inflated/deployed state of FIG. 3A. 図４Ａは、センターサイドエアバッグの一例を示す側面図である。FIG. 4A is a side view showing an example of a center side airbag. 図４Ｂは、図４Ａのインフレータが収納されている部分を上方から見た拡大図である。FIG. 4B is an enlarged view of the portion in which the inflator of FIG. 4A is housed, viewed from above. 図４Ｃは、シート間エアバッグの一例を示す斜視図である。FIG. 4C is a perspective view showing an example of an inter-seat airbag. 図５Ａは、実施形態の第１変形例に係るエアバッグ装置の膨張展開が完了した状態を前方から見た図である。FIG. 5A is a front view of a state in which the inflation and deployment of the airbag device according to the first modification of the embodiment is completed. 図５Ｂは、実施形態の第１変形例に係るエアバッグ装置が取り付けられた状態を上方から見た図である。FIG. 5B is a top view of a state in which an airbag device according to a first modified example of the embodiment is attached; 図６Ａは、実施形態の第２変形例に係るエアバッグ装置が搭載される車幅方向に並んだ２つのシートを前方から見た図である。FIG. 6A is a front view of two seats arranged in the vehicle width direction on which an airbag device according to a second modification of the embodiment is mounted. 図６Ｂは、実施形態の第２変形例に係るエアバッグ装置が取り付けられた状態を上方から見た図である。FIG. 6B is a top view of a state in which an airbag device according to a second modification of the embodiment is attached; 図７Ａは、実施形態の第２変形例に係るエアバッグ装置の膨張展開が完了した状態を前方から見た図である。FIG. 7A is a front view of a state in which inflation and deployment of an airbag device according to a second modification of the embodiment are completed; 図７Ｂは、図７Ａの膨張展開完了状態を上方から見た図である。FIG. 7B is a top view of the inflation/deployment completion state of FIG. 7A. 図８は、実施形態の第２変形例を実現するための制御部、センサ、メモリを示すブロック図である。FIG. 8 is a block diagram showing a control unit, sensors, and memory for implementing the second modification of the embodiment. 図９は、制御部において実行される状態取得手段、選択手段、制御手段を示すフローチャート図である。FIG. 9 is a flow chart showing the state acquisition means, selection means, and control means executed in the control section.
　以下、図面を参照しながら、本発明の実施形態を詳細に説明する。なお、以下の実施形態は、本発明の一例であって、本発明、その適用物、あるいはその用途の範囲を制限することを意図するものではない。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The following embodiments are examples of the present invention, and are not intended to limit the scope of the present invention, its applications, or its uses.
　本発明において「乗員」とは、前面衝突試験用のダミー（Hybrid III  ＡＭ５０/ NHTSA [National Highway Traffic Safety Administration：米国高速道路交通安全協会]の規格[49CFR Part572 Subpart E 及びO] にて決められた前面衝突試験用人体ダミー）に準拠した、米国における平均的な男性に相当する体格を有するものをいい、概略サイズは、身長１７５ｃｍ、座高８８ｃｍ、体重７８ｋｇである。 In the present invention, the "occupant" is a frontal collision test dummy (Hybrid III AM50/NHTSA [National Highway Traffic Safety Administration: American Highway Traffic Safety Association] standard [49CFR Part 572 Subpart E and O] Human Dummy for Frontal Collision Test), having a physique equivalent to that of an average male in the United States.
　また、本明細書において、「上」「上側」とは座席１ｄ，１ｎの正規の位置に着座した乗員２ｄ，２ｎの頭部方向を、「下」「下側」とはそれら乗員２ｄ，２ｎの足元方向を意味する場合がある。ここで、「正規の位置」とは、座席１ｄ，１ｎにおけるシートクッション３ｄ，３ｎの左右方向の中心位置で、その座席１ｄ，１ｎの背もたれ部４ｄ，４ｎに乗員２ｄ，２ｎの背中が上下に亘って接する位置をいう。また、「前」「前側」とは座席１ｄ，１ｎの正規の位置に着座した乗員２ｄ，２ｎの正面方向を、「後」「後ろ側」とはそれら乗員２ｄ，２ｎの背面方向を意味する場合がある。また、「左」「左側」とは座席１ｄ，１ｎの正規の位置に着座した乗員２ｄ，２ｎの左手方向を、「右」「右側」とはそれら乗員２ｄ，２ｎの右手方向を意味する場合がある。 In this specification, the terms "upper" and "upper" refer to the direction of the heads of the occupants 2d and 2n seated in the normal positions of the seats 1d and 1n, may mean the foot direction of the Here, the "normal position" is the central position of the seat cushions 3d, 3n in the seat 1d, 1n in the left-right direction. It refers to the position where it touches across. Further, "front" and "front side" mean the front direction of the passengers 2d and 2n seated in the regular positions of the seats 1d and 1n, and "rear" and "rear side" mean the back direction of the passengers 2d and 2n. Sometimes. In addition, "left" and "left" refer to the left direction of the passengers 2d and 2n seated in the regular positions of the seats 1d and 1n, and "right" and "right" refer to the right direction of the passengers 2d and 2n. There is
　本実施形態は、車両の車幅方向に並んで配置される一方座席１ｄと他方座席１ｎを備えた車両に適用されるエアバッグ装置１０である。本実施形態においては、一方座席１ｄは運転席、他方座席１ｎは助手席であり、一方座席１ｄに着座した乗員２ｄがステアリング７を操作している。図１Ａでは、車両の内装は省略しているが、一方座席１ｄと他方座席１ｎの間にセンターコンソールがあってもよい。図１Ｂでは、紙面下側が車両の進行方向を示している。一方座席１ｄは第１シート、他方座席１ｎは第２シートに相当する。 This embodiment is an airbag device 10 applied to a vehicle having one seat 1d and the other seat 1n arranged side by side in the vehicle width direction of the vehicle. In this embodiment, one seat 1d is the driver's seat and the other seat 1n is the passenger's seat. Although the interior of the vehicle is omitted in FIG. 1A, there may be a center console between one seat 1d and the other seat 1n. In FIG. 1B, the lower side of the paper indicates the traveling direction of the vehicle. One seat 1d corresponds to the first seat, and the other seat 1n corresponds to the second seat.
［座席の概略構成］
　一方座席１ｄと他方座席１ｎは、それぞれシートクッション３ｄ，３ｎと、背もたれ部４ｄ，４ｎを備えている。背もたれ部４ｄ，４ｎの内部には、一方座席１ｄ及び他方座席１ｎの骨格を形成するシートバックフレーム８ｄ，８ｎが設けられている。シートバックフレーム８ｄ，８ｎの表面及び周囲には、例えばウレタン発泡材等からなるパッドが設けられている。当該パッドの表面は、例えば皮革、ファブリック等の表皮によって覆われている。 [Outline configuration of seats]
One seat 1d and the other seat 1n are provided with seat cushions 3d, 3n and backrests 4d, 4n, respectively. Seatback frames 8d and 8n forming the framework of the one seat 1d and the other seat 1n are provided inside the backrest portions 4d and 4n. Pads made of, for example, urethane foam are provided on the surfaces and surroundings of the seatback frames 8d and 8n. The surface of the pad is covered with a skin such as leather or fabric.
　図２Ａでは省略しているが、シートクッション３ｄ，３ｎの底側には着座フレームが設けられている。着座フレームの上面及び周囲もパッドが設けられ、当該パッドの表面は表皮によって覆われている。着座フレームとシートバックフレーム８ｄ，８ｎは、リクライニング機構を介して連結されている。 Although omitted in FIG. 2A, seating frames are provided on the bottom sides of the seat cushions 3d and 3n. The upper surface and surroundings of the seating frame are also provided with pads, and the surfaces of the pads are covered with a skin. The seating frame and seatback frames 8d and 8n are connected via a reclining mechanism.
　シートバックフレーム８ｄ，８ｎは、図２Ａに示すように、左右に離間して配置され上下方向に延在するサイドフレームと、このサイドフレームの上端部同士を連結する上部フレームとを備えている。また、サイドフレームの下端部同士を連結する下部フレームを更に備え、枠状に構成されていてもよい。 As shown in FIG. 2A, the seatback frames 8d and 8n include side frames that are spaced apart from each other in the left and right direction and extend in the vertical direction, and an upper frame that connects the upper ends of the side frames. Further, a lower frame that connects the lower ends of the side frames may be further provided to form a frame shape.
　シートバックフレーム８ｄ，８ｎは、樹脂又は金属によって成形されており、サイドフレームの部分は、例えば、Ｌ字断面形状又は「コ」の字断面形状とすることができる。サイドフレームは、水平断面を上方から見たときに前後方向に延びるフレーム側壁部を備えている。そして、エアバッグ装置１０は、例えば一方座席１ｄ及び他方座席１ｎの夫々のフレーム側壁部に固定されている。背もたれ部４ｄ，４ｎは、車幅方向の側部において前方に膨出したサイドサポート部を備えている。このサイドサイドサポート部の内部にパッドが配置されていない空間があり、この空間を利用してエアバッグ装置１０が収納されている。 The seatback frames 8d and 8n are molded from resin or metal, and the side frame portions can have, for example, an L-shaped cross-section or a "U"-shaped cross-section. The side frame has a frame side wall portion extending in the front-rear direction when viewed from above in a horizontal cross section. The airbag device 10 is fixed, for example, to the side wall portions of the frames of the one seat 1d and the other seat 1n. The backrest portions 4d and 4n are provided with side support portions that protrude forward at the side portions in the vehicle width direction. There is a space in which no pad is arranged inside the side-side support portion, and the airbag device 10 is housed using this space.
　背もたれ部４ｄ，４ｎの上端部には、棒状の支持部材５を介して、ヘッドレスト６が取り付けられている。支持部材５は、背もたれ部４ｄ，４ｎの上部とヘッドレスト６の下部との間に位置している。以下では、例えば乗員２ｄを基準とした場合に、座席１ｄ用のドアから遠い側を「ファーサイド」という場合がある。 A headrest 6 is attached to the upper ends of the backrests 4d and 4n via a rod-shaped support member 5. As shown in FIG. The support member 5 is positioned between the upper portions of the backrest portions 4 d and 4 n and the lower portion of the headrest 6 . In the following, for example, when the passenger 2d is used as a reference, the side far from the door for the seat 1d may be referred to as the "far side".
［エアバッグ装置の構成］
　本実施形態のエアバッグ装置１０は、一方座席１ｄに実装されるセンターサイドエアバッグモジュール２０と、他方座席１ｎに実装されるシート間エアバッグモジュール３０からなる。 [Configuration of Airbag Device]
The airbag system 10 of this embodiment comprises a center side airbag module 20 mounted on one seat 1d and an inter-seat airbag module 30 mounted on the other seat 1n.
　センターサイドエアバッグモジュール２０は、一方座席１ｄのシートバックフレーム８ｄの車幅方向中心側のサイドフレームの部分に取り付けられ、かつ、背もたれ部４ｄのサイドサポート部内において前方側に取り付けられる（図２Ａ、図２Ｂ参照）。 The center side airbag module 20 is attached to the side frame portion of the seatback frame 8d of the seat 1d on the center side in the vehicle width direction, and is attached to the front side within the side support portion of the backrest portion 4d (FIGS. 2A and 2B). 2B).
　センターサイドエアバッグモジュール２０は、一方座席１ｄに着座した乗員２ｄの車幅方向中心側において背もたれ部４ｄのサイドサポート部から前方に膨張展開し、乗員２ｄの側部（頭部、肩部、腹部、腰部）を保護するセンターサイドエアバッグ２１と、センターサイドエアバッグ２１の内部に設置され、センターサイドエアバッグ２１にガスを噴出して膨張させる円筒状のインフレータ２２とを備える。 The center side airbag module 20 inflates and deploys forward from the side support portion of the backrest portion 4d on the center side of the vehicle width direction of the occupant 2d seated on the seat 1d, and the sides of the occupant 2d (head, shoulders, abdomen, and a cylindrical inflator 22 which is installed inside the center side airbag 21 and inflates the center side airbag 21 by blowing out gas.
　センターサイドエアバッグ２１は、例えば図４Ａに示すような、前後方向よりも上下方向が長く形成された布製の袋体である。左右方向に厚みを有するように、左右対称に形成された一対の基布パネル２３の外周部を縫製２４している。 The center side airbag 21 is, for example, a cloth bag formed longer in the vertical direction than in the front-rear direction, as shown in FIG. 4A. A pair of symmetrically formed base fabric panels 23 are sewn 24 at their outer peripheries so as to have thickness in the left-right direction.
　センターサイドエアバッグ２１は、平置き状態において、例えば前側から後ろ側に向かってロール状に巻く、又は、前側から後ろ側に向かって蛇腹状に折り畳むことにより、前後方向の寸法が短くなり、座席１ｄに収納される時の収納形態となる。 When the center side airbag 21 is laid flat, for example, it is rolled from the front side to the rear side, or folded from the front side to the rear side in a bellows shape, so that the dimension in the front-rear direction is shortened. It becomes the storage form when it is stored in 1d.
　インフレータ２２の外側面には、その長手方向に適宜の間隔を空けて２本のスタッドボルト２２ａが突出状に設けられている。これらスタッドボルト２２ａを用いて、ロール状に巻いた、若しくは、蛇腹状に折り畳んだセンターサイドエアバッグ２１をシートバックフレーム８ｄに取り付けている。 The outer surface of the inflator 22 is provided with two protruding stud bolts 22a spaced apart in the longitudinal direction thereof. Using these stud bolts 22a, the center side airbag 21 wound into a roll or folded into a bellows shape is attached to the seatback frame 8d.
　センターサイドエアバッグ２１の後ろ側は、座席１ｄの背もたれ部４ｄのファーサイドに固定されており、センターサイドエアバッグ２１はその固定箇所から前方に膨張展開する。 The rear side of the center side airbag 21 is fixed to the far side of the backrest portion 4d of the seat 1d, and the center side airbag 21 inflates and deploys forward from the fixing point.
　シート間エアバッグモジュール３０は、他方座席１ｎのシートバックフレーム８ｎの車幅方向中心側のサイドフレームの部分に取り付けられ、かつ、背もたれ部４ｄのサイドサポート部内において後方側に取り付けられる（図２Ａ、図２Ｂ参照）。 The inter-seat airbag module 30 is attached to the side frame portion of the seatback frame 8n of the other seat 1n on the center side in the vehicle width direction, and is attached to the rear side within the side support portion of the backrest portion 4d (FIGS. 2A and 2B). 2B).
　シート間エアバッグモジュール３０は、一方座席１ｄと他方座席１ｎとの間の空間を埋めるように、背もたれ部４ｎのサイドサポート部から車幅方向に膨張展開することで、センターサイドエアバッグ２１が格納されている一方座席１ｄの変形を抑制するシート間エアバッグ３１と、シート間エアバッグ３１の内部に設置され、シート間エアバッグ３１にガスを噴出して膨張させる円筒状のインフレータ３２とを備える。 The inter-seat airbag module 30 inflates and deploys in the vehicle width direction from the side support portion of the backrest portion 4n so as to fill the space between the one seat 1d and the other seat 1n, thereby storing the center side airbag 21. and a cylindrical inflator 32 installed inside the inter-seat airbag 31 and inflating the inter-seat airbag 31 by ejecting gas.
　シート間エアバッグ３１は、例えば図４Ｃに示すような、上下方向に所要の高さを有すると共に左右方向に長い袋体であり、前後方向にも一定の厚みを有するように、複数の基布パネルを縫製することで箱状に形成されている。 The inter-seat airbag 31 is, for example, as shown in FIG. 4C, a bag having a required height in the vertical direction and being long in the horizontal direction. It is formed into a box shape by sewing panels.
　シート間エアバッグ３１は、平置き状態において、例えば前側から後ろ側に向かってロール状に巻く、又は、前側から後ろ側に向かって蛇腹状に折り畳むことにより、前後方向の寸法が短くなり、座席１ｎに収納される時の収納形態となる。 When the inter-seat airbag 31 is laid flat, for example, it is rolled from the front side to the rear side, or folded from the front side to the rear side in a bellows shape, so that the dimension in the front-rear direction is shortened. This is the storage form when stored in 1n.
　インフレータ３２の外側面には、その長手方向に適宜の間隔を空けて２本のスタッドボルト３２ａが突出状に設けられている。シート間エアバッグ３１は、スタッドボルト３２ａを用いて、ロール状に巻いた、若しくは、蛇腹状に折り畳んだ状態でシートバックフレーム８ｎに固定される。 The outer surface of the inflator 32 is provided with two protruding stud bolts 32a spaced apart in the longitudinal direction thereof. The inter-seat airbag 31 is fixed to the seatback frame 8n in a state of being wound into a roll or folded into a bellows shape using stud bolts 32a.
［膨張展開完了時の構成］
　本実施形態では、膨張展開が完了した状態において、シート間エアバッグ３１は、センターサイドエアバッグ２１よりも内部のガス圧力が高圧となるようにしている。このエアバッグ間の圧力の調整は、例えばインフレータ２２及びインフレータ３２から噴出されるガスの量を調整することによって行われる。 [Configuration when expansion and deployment are completed]
In this embodiment, the gas pressure inside the inter-seat airbag 31 is set to be higher than that of the center side airbag 21 when the inflation and deployment are completed. Adjustment of the pressure between the airbags is performed by adjusting the amount of gas ejected from the inflator 22 and the inflator 32, for example.
　本実施形態では、膨張展開が完了した状態において、シート間エアバッグ３１は一方座席１ｄに着座した乗員とは非接触となる位置に膨張展開するようにしている。この膨張展開位置の調整は、例えば、シート間エアバッグモジュール３０の格納位置を背もたれ部４ｎのサイドサポート部内において後方側とすること、及び、センターサイドエアバッグ２１の格納位置を背もたれ部４ｄのサイドサポート部内において前方側とすることによって行われる。 In this embodiment, when inflation and deployment are completed, the inter-seat airbag 31 is inflated and deployed to a position where it does not come into contact with the occupant seated on the seat 1d. This adjustment of the inflated and deployed position is performed, for example, by setting the storage position of the inter-seat airbag module 30 to the rear side in the side support portion of the backrest portion 4n, and by setting the storage position of the center side airbag 21 in the side support portion of the backrest portion 4d. in the front side.
　本実施形態では、シート間エアバッグ３１は、膨張展開が完了した状態において側面視したときにセンターサイドエアバッグ２１とは重なり合わない位置に膨張展開するようにしてもよい。あるいは、シート間エアバッグ３１の展開挙動を阻害することがない限り、シート間エアバッグ３１は、膨張展開が完了した状態において側面視したときにセンターサイドエアバッグ２１と一部重なり合う部分が存在する位置に膨張展開するようにしてもよい。 In the present embodiment, the inter-seat airbag 31 may be inflated and deployed at a position where it does not overlap with the center side airbag 21 when viewed from the side after inflation and deployment is completed. Alternatively, unless the deployment behavior of the inter-seat airbag 31 is hindered, the inter-seat airbag 31 partially overlaps the center side airbag 21 when viewed from the side in a state in which inflation and deployment is completed. You may make it expand|deploy to a position.
［本実施形態の効果等］
　本実施形態に係るエアバッグ装置１０は、一方座席１ｄから見てファーサイドからの側面衝突（図３Ａ中の矢印の方向からの衝突）によって車両に衝撃が加わると、センサからの信号を受けたインフレータ２２が、センターサイドエアバッグ２１内にガスを噴射し、センターサイドエアバッグ２１が膨張展開し、乗員２ｄの車幅方向中心側の側部（頭部、肩部、腹部、腰部）を保護する。また、センサからの信号を受けたインフレータ３２が、シート間エアバッグ３１内にガスを噴射し、これによりシート間エアバッグ３１が膨張展開する。 [Effects of this embodiment, etc.]
On the other hand, the airbag device 10 according to the present embodiment receives a signal from the sensor when the vehicle is impacted by a side collision from the far side as seen from the seat 1d (collision from the direction of the arrow in FIG. 3A). The inflator 22 injects gas into the center side airbag 21, and the center side airbag 21 is inflated and deployed to protect the side portions (head, shoulders, abdomen, waist) of the occupant 2d on the center side in the vehicle width direction. do. Further, the inflator 32 receives a signal from the sensor and injects gas into the inter-seat airbag 31, thereby inflating and deploying the inter-seat airbag 31. As shown in FIG.
　このとき、シート間エアバッグ３１は、膨張展開が完了した状態では、一方座席１ｄ及び他方座席１ｎの各背もたれ部４ｄ，４ｎの側部の側面と接触し、より具体的には、該側面の例えば全域と接触して、各背もたれ部４ｄ，４ｎの側部を互いに押す状態となる。 At this time, the inter-seat airbag 31 contacts the side surfaces of the backrest portions 4d and 4n of the one seat 1d and the other seat 1n in a state in which inflation and deployment is completed. For example, it comes into contact with the entire area and presses the side portions of the backrest portions 4d and 4n against each other.
　本実施形態では、シート間エアバッグ３１が一方座席１ｄと他方座席１ｎの間に膨張展開し、センターサイドエアバッグ２１が搭載され乗員２ｄが着座している一方座席１ｄの変形を抑制する。このため、本実施形態によれば、座席１ｄの変形に起因してセンターサイドエアバッグ２１の性能が阻害される問題が減少し、乗員の拘束性能が向上する。 In this embodiment, the inter-seat airbag 31 is inflated and deployed between one seat 1d and the other seat 1n, and the center side airbag 21 is installed to suppress deformation of the seat 1d on which the passenger 2d is seated. Therefore, according to this embodiment, the problem that the performance of the center side airbag 21 is hindered due to the deformation of the seat 1d is reduced, and the occupant restraint performance is improved.
　本実施形態では、シート間エアバッグ３１は、乗員２ｄには接触しない位置に膨張展開するように構成し、シート間エアバッグ３１のガスの圧力は、センターサイドエアバッグ２１のガスの圧力よりも高くしている。例えば、シート間エアバッグ３１を座席１ｄの耐性上許される限り高圧化した場合、一方座席１ｄの変形を抑制する効果をより向上させることができる。 In this embodiment, the inter-seat airbag 31 is configured to inflate and deploy to a position that does not contact the occupant 2d, and the gas pressure of the inter-seat airbag 31 is higher than the gas pressure of the center side airbag 21. Raise. For example, if the pressure of the inter-seat airbag 31 is increased as much as the resistance of the seat 1d permits, the effect of suppressing the deformation of the seat 1d can be further improved.
［実施形態の第１変形例］
　本変形例は、図５Ｂに示すように、一方座席１ｄの背もたれ部４ｄのセンターサイドエアバッグモジュール２０の後ろ側に第２シート間エアバッグモジュール４０を設けると共に、他方座席１ｎの背もたれ部４ｄのシート間エアバッグモジュール３０の前側に第２センターサイドエアバッグモジュール５０を設けた構成である。 [First modification of the embodiment]
In this modification, as shown in FIG. 5B, a second inter-seat airbag module 40 is provided behind the center side airbag module 20 of the backrest portion 4d of one seat 1d, and the backrest portion 4d of the other seat 1n is provided with a second inter-seat airbag module 40. In this configuration, a second center side airbag module 50 is provided on the front side of the inter-seat airbag module 30 .
　第２シート間エアバッグモジュール４０は、図５Ａに示すように、一方座席１ｄと他方座席１ｎとの間の空間を埋めるように膨張展開して他方座席１ｎの変形を抑制するシート間エアバッグ４１と、シート間エアバッグ４１を膨張させるガスを噴射するインフレータ４２とを備えている。 As shown in FIG. 5A, the second inter-seat airbag module 40 is inflated and deployed to fill the space between the one seat 1d and the other seat 1n, thereby suppressing deformation of the other seat 1n. and an inflator 42 for injecting gas for inflating the inter-seat airbag 41. - 特許庁
　第２センターサイドエアバッグモジュール５０は、他方座席１ｎに着座した乗員２ｎの車幅方向中心側に膨張展開して乗員２ｎを保護するセンターサイドエアバッグ５１と、センターサイドエアバッグ５１を膨張させるガスを噴射するインフレータ５２とを備える。 The second center side airbag module 50 includes a center side airbag 51 that inflates and deploys toward the vehicle width direction center side of the occupant 2n seated in the other seat 1n to protect the occupant 2n, and a gas that inflates the center side airbag 51. and an inflator 52 that injects the
　本変形例によれば、他方座席１ｎから見てファーサイドからの衝突（図５Ａ中の矢印の方向からの衝突）が生じた場合は、センターサイドエアバッグ５１が膨張展開して他方座席１ｎに着座している乗員２ｎの車幅方向中心側の側部（頭部、胸部、腹部、腰部）を保護すると共に、シート間エアバッグ４１が一方座席１ｄと他方座席１ｎとの間に膨張展開して、他方座席１ｎが変形するのを抑制することができる。 According to this modification, when a collision occurs from the far side as viewed from the other seat 1n (collision from the direction of the arrow in FIG. 5A), the center side airbag 51 is inflated and deployed to the other seat 1n. While protecting the sides (head, chest, abdomen, waist) of the seated occupant 2n on the center side in the vehicle width direction, an inter-seat airbag 41 is inflated and deployed between the one seat 1d and the other seat 1n. Therefore, deformation of the other seat 1n can be suppressed.
　本変形例の上記以外の構成、例えばセンターサイドエアバッグモジュール２０やシート間エアバッグモジュール３０の構成等については、上述の実施形態で説明したところと同じであるから、説明を省略する。 The configuration of this modified example other than the above, such as the configuration of the center side airbag module 20 and the inter-seat airbag module 30, etc., is the same as that described in the above-described embodiment, so description thereof will be omitted.
［実施形態の第２変形例］
　本変形例の車両は、自動運転車であり、図６Ａに示すように自動運転モードで走行中は運転者を必要とせず自律走行が可能である。一方座席１ｄと他方座席１ｎは、夫々その位置で１８０度回転した状態となっており、乗員２ｄ及び２ｎは、車両の進行方向とは反対の方向に顔を向けて着座している。ステアリング７は使用されることがなく、一方座席１ｄと他方座席１ｎの間の位置にスライドさせた状態となっている。図６Ｂでは、紙面上側が車両の進行方向を示している。 [Second Modification of Embodiment]
The vehicle of this modified example is an automatic driving vehicle, and as shown in FIG. 6A, can autonomously travel without the need of a driver while traveling in the automatic driving mode. The one seat 1d and the other seat 1n are rotated 180 degrees from their respective positions, and the occupants 2d and 2n are seated with their faces facing in the direction opposite to the traveling direction of the vehicle. The steering wheel 7 is not used and is slid to a position between one seat 1d and the other seat 1n. In FIG. 6B, the upper side of the paper indicates the traveling direction of the vehicle.
　本変形例では、一方座席１ｄの背もたれ部４ｄの車幅方向の一方の端部に上述の実施形態で説明したセンターサイドエアバッグモジュール２０を設けていることに加え、背もたれ部４ｄの車幅方向の他方の端部には、第３センターサイドエアバッグモジュール６０を設けている。第３センターサイドエアバッグモジュール６０は、図７Ａに示すように、一方座席１ｄに着座している乗員２ｄの側部に膨張展開する第３センターサイドエアバッグ６１と、この第３センターサイドエアバッグ６１にガスを供給するインフレータ６２を備える。 In this modification, in addition to the center side airbag module 20 described in the above embodiment being provided at one end of the backrest portion 4d of one seat 1d in the vehicle width direction, A third center side airbag module 60 is provided at the other end. As shown in FIG. 7A, the third center side airbag module 60 includes a third center side airbag 61 that inflates and deploys to the side of an occupant 2d seated on one seat 1d, and this third center side airbag. It has an inflator 62 that supplies gas to 61 .
　また、本変形例では、他方座席１ｎの背もたれ部４ｎの車幅方向の一方の端部に上述の実施形態で説明したシート間エアバッグモジュール３０を設けていることに加え、背もたれ部４ｎの車幅方向の他方の端部には、第３シート間エアバッグモジュール７０を設けている。第３シート間エアバッグモジュール７０は、図７Ａに示すように、一方座席１ｄと他方座席１ｎの間の空間を埋めるように膨張展開し、一方座席１ｄの変形を抑制する第３シート間エアバッグ７１と、この第３シート間エアバッグ７１にガスを供給するインフレータ７２を備える。 In addition, in this modification, the inter-seat airbag module 30 described in the above-described embodiment is provided at one end of the backrest portion 4n of the other seat 1n in the vehicle width direction. A third inter-seat airbag module 70 is provided at the other end in the width direction. As shown in FIG. 7A, the third inter-seat airbag module 70 inflates and deploys so as to fill the space between one seat 1d and the other seat 1n, and suppresses deformation of the one seat 1d. 71 and an inflator 72 that supplies gas to the third inter-seat airbag 71 .
　本変形例の車両は、図８に示すように、制御部１００とセンサ１０１とメモリ１０２を備える。制御部１００は、具体的にはＣＰＵを備えたマイクロコンピュータによって構成される。メモリ１０２は、例えばＲＯＭによって構成される。制御部１００は、例えば背もたれ部４ｄのシートバックフレーム８ｄに固定して格納されている。制御部１００は、メモリ１０２に記憶されているアプリケーションをＣＰＵにおいて実行し、例えば図９のフローチャートに示す処理を実行する。 The vehicle of this modified example includes a control unit 100, a sensor 101, and a memory 102, as shown in FIG. The control unit 100 is specifically configured by a microcomputer having a CPU. The memory 102 is configured by, for example, a ROM. The control unit 100 is stored, for example, fixed to the seatback frame 8d of the backrest portion 4d. The control unit 100 executes the application stored in the memory 102 in the CPU, and executes the processing shown in the flowchart of FIG. 9, for example.
　本変形例の車両は、複数のセンサ１０１を備える。センサ１０１は、例えば一方座席１ｄ及び他方座席１ｎの状態、各座席に着座している乗員２ｄ，２ｎの夫々の状態を検知する。センサ１０１が検知する一方座席１ｄ及び他方座席１ｎの状態には、各座席の向きが含まれる。各座席の向きは、例えば車両の前方方向と同じ方向を一方座席１ｄ及び他方座席１ｎが向いている状態を基準位置（０度）とし、この基準位置から一方座席１ｄ及び他方座席１ｎがそれぞれ何度回転しているかを個別に検知する。 The vehicle of this modification includes a plurality of sensors 101. The sensor 101 detects, for example, the states of one seat 1d and the other seat 1n, and the states of the passengers 2d and 2n seated on each seat. The states of one seat 1d and the other seat 1n detected by the sensor 101 include the orientation of each seat. Regarding the orientation of each seat, for example, a state in which the one seat 1d and the other seat 1n are facing in the same direction as the front of the vehicle is taken as a reference position (0 degrees), and the one seat 1d and the other seat 1n are arranged from this reference position. Detect whether it is rotated by degrees.
　センサ１０１が検知する情報としては、一方座席１ｄ及び他方座席１ｎの向き以外に、例えば背もたれ部４ｄ，４ｎを傾倒角度、乗員２ｄ，２ｎの存否、シートベルトの装着の有無などを含むようにしてもよい。 The information detected by the sensor 101 may include, in addition to the directions of the one seat 1d and the other seat 1n, the inclination angles of the backrests 4d and 4n, the presence or absence of the occupants 2d and 2n, and whether the seat belts are worn or not. .
　つまり、センサ１０１は、複数のセンサ１０１からなるセンサ群であって、車両の衝突を検知するためのセンサと、一方座席１ｄ及び他方座席１ｎの向きを検出するセンサを含む以外に、背もたれ部４ｄ，４ｎの傾倒角度を検出するセンサ、シートクッション３ｎ，３ｄに掛かる荷重を検出するセンサ、シートベルトのアンカー部のバックル部に対する固定の有無を検出するセンサなどが含まれていてもよい。 That is, the sensor 101 is a sensor group consisting of a plurality of sensors 101. In addition to including a sensor for detecting a vehicle collision and a sensor for detecting the orientation of the one seat 1d and the other seat 1n, , 4n, a sensor for detecting the load applied to the seat cushions 3n and 3d, a sensor for detecting whether or not the anchor portion of the seat belt is fixed to the buckle portion, and the like.
　本変形例は、図６Ｂに示すように、一方座席１ｄの背もたれ部４ｄのセンターサイドエアバッグモジュール２０を設けた位置とは反対側の側部に第３センターサイドエアバッグモジュール６０を設けると共に、他方座席１ｎの背もたれ部４ｄのシート間エアバッグモジュール３０を設けた位置とは反対側の側部に第３シート間エアバッグモジュール７０を設けている。 In this modification, as shown in FIG. 6B, a third center side airbag module 60 is provided on the side of the backrest 4d of the seat 1d opposite to the position where the center side airbag module 20 is provided, A third inter-seat airbag module 70 is provided on the side portion of the backrest portion 4d of the seat 1n opposite to the position where the inter-seat airbag module 30 is provided.
　自動運転の車両では、車両の進行方向に対するシートの向きによって乗員を保護するために展開が必要なエアバッグは異なる。このため、制御部１００は、以下に説明するような制御を行うことで、インフレータ２２，３２，６２，７２の中から乗員を保護するために必要なエアバッグを作動させるインフレータを決定し、当該インフレータに対する作動信号を送信する。 In self-driving vehicles, the airbags that need to be deployed to protect the occupants differ depending on the orientation of the seat relative to the direction of travel of the vehicle. For this reason, the control unit 100 performs control as described below to determine an inflator for operating an airbag necessary for protecting the occupant from among the inflators 22, 32, 62, and 72, Sends the activation signal to the inflator.
　図９は、本変形例の制御部１００が行う処理の一例を示すフローチャートである。最初に制御部１００は、センサ１０１から一方座席１ｄ及び他方座席１ｎの状態に関するデータを取得する（ステップＳ１）。図６Ａの状態の場合であれば、各座席が１８０度回転した状態にあることを示すデータを取得する。このステップＳ１は、状態取得手段に相当する。 FIG. 9 is a flowchart showing an example of processing performed by the control unit 100 of this modified example. First, the control unit 100 acquires data regarding the states of the one seat 1d and the other seat 1n from the sensor 101 (step S1). In the case of the state of FIG. 6A, data indicating that each seat is rotated 180 degrees is acquired. This step S1 corresponds to the state obtaining means.
　次に、制御部１００は、例えば乗員２ｄを保護するために展開が必要なエアバッグを選択する（ステップＳ２）。具体的には、制御部１００は、状態取得手段（ステップＳ１）が取得した情報に基づいて、側面衝突が発生したときに一方座席１ｄに着座している乗員２ｄが、慣性力が作用する方向へ移動するのを拘束して保護するために必要なエアバッグを選択する。 Next, the control unit 100 selects an airbag that needs to be deployed, for example, to protect the passenger 2d (step S2). Specifically, based on the information acquired by the state acquiring means (step S1), the control unit 100 determines whether the occupant 2d seated on the one seat 1d is in the direction in which the inertial force acts when a side collision occurs. Select the airbags you need to restrain and protect your travel to.
　例えば、図６Ａに示す状態のように車両が自動運転モードで走行中の場合は、乗員２ｄから見てファーサイドからの側面衝突に備えるためには、衝撃が加わる部位に向かう乗員を抑制する必要がある。つまり、車幅方向中央側に移動する乗員２ｄを受け止めて保護することが必要であるため、上述の実施形態で説明した通常運転モードの場合とは異なり、センターサイドエアバッグ２１ではなく、第３センターサイドエアバッグ６１の方を選択する必要がある。また、一方座席１ｄの変形を抑制するためには、シート間エアバッグ３１ではなく、第３シート間エアバッグ７１の方を選択する必要がある。このステップＳ２は、選択手段に相当する。 For example, when the vehicle is running in the automatic driving mode as in the state shown in FIG. 6A, in order to prepare for a side collision from the far side as seen from the passenger 2d, it is necessary to restrain the passenger from moving toward the site where the impact is applied. There is That is, since it is necessary to receive and protect the occupant 2d moving toward the center in the vehicle width direction, unlike the case of the normal operation mode described in the above-described embodiment, the center side airbag 21 instead of the third airbag The center side airbag 61 must be selected. On the other hand, in order to suppress the deformation of the seat 1d, it is necessary to select the third inter-seat airbag 71 instead of the inter-seat airbag 31 . This step S2 corresponds to selection means.
　続いて、制御部１００は、センサ１０１からの情報に基づき、エアバッグの展開が必要な衝突を検知したか否かを判断する（ステップＳ３）。ステップＳ３において、制御部１００が衝突を検知していない場合はＮｏに進み、ステップＳ１、Ｓ２の処理が一定の周期で繰り返される。一方、ステップＳ３において、制御部１００が衝突を検知した場合はＹｅｓに進む。 Subsequently, based on the information from the sensor 101, the control unit 100 determines whether or not a collision requiring deployment of the airbag has been detected (step S3). In step S3, if the control unit 100 has not detected a collision, the process proceeds to No, and the processes of steps S1 and S2 are repeated at regular intervals. On the other hand, in step S3, when the control unit 100 detects a collision, the process proceeds to Yes.
　次のステップＳ４では、制御部１００は、選択手段（ステップＳ２）で選択したセンターサイドエアバッグモジュール６０のインフレータ６２に対し作動信号を送信する。これによってインフレータ６２が作動し、センターサイドエアバッグ６１が膨張展開することで乗員２ｄが車幅方向中心側へ移動するのを拘束する。 In the next step S4, the control section 100 transmits an actuation signal to the inflator 62 of the center side airbag module 60 selected by the selection means (step S2). As a result, the inflator 62 is actuated and the center side airbag 61 is inflated and deployed to restrain the occupant 2d from moving toward the center in the vehicle width direction.
　加えて、ステップＳ４では、選択手段（ステップＳ２）で選択したセンターサイドエアバッグ６１が設けられている一方座席１ｄの変形を抑制するために、他方座席１ｎに設けたシート間エアバッグ７１が膨張展開するようにインフレータ７２にも信号を送信する。これらステップＳ３とステップＳ４は制御手段に相当する。 In addition, in step S4, in order to suppress deformation of the one seat 1d provided with the center side airbag 61 selected by the selection means (step S2), the inter-seat airbag 71 provided in the other seat 1n is inflated. It also signals the inflator 72 to deploy. These steps S3 and S4 correspond to control means.
　本変形例の上記以外の構成、例えばセンターサイドエアバッグモジュール２０やシート間エアバッグモジュール３０の構成等については、上述の実施形態で説明したところと同じであるから、説明を省略する。本変形例の車両が通常モードで運転しているときに、乗員２ｄから見てファーサイドからの側面衝突が生じたときは、センターサイドエアバッグ２１とシート間エアバッグ３１が膨張展開する。 The configuration of this modified example other than the above, such as the configuration of the center side airbag module 20 and the inter-seat airbag module 30, etc., is the same as that described in the above-described embodiment, so description thereof will be omitted. When the vehicle of this modified example is driven in the normal mode and a side collision occurs from the far side as seen from the passenger 2d, the center side airbag 21 and the inter-seat airbag 31 are inflated and deployed.
　本変形例によれば、一方座席１ｄ及び他方座席１ｎが車両の前方方向に対して１８０度回転している場合は、一方座席１ｄから見てファーサイドからの側面衝突（図７Ａ中の矢印の方向からの衝突）に対処できるセンターサイドエアバッグ６１とシート間エアバッグ７１を選択し、衝突が生じたときはこれらのエアバッグを展開させて、乗員２ｄを事故の衝撃から保護できる。 According to this modification, when one seat 1d and the other seat 1n are rotated 180 degrees with respect to the forward direction of the vehicle, a side collision from the far side as viewed from the one seat 1d (arrow in FIG. 7A) A center side airbag 61 and an inter-seat airbag 71 that can cope with a collision from any direction are selected, and when a collision occurs, these airbags are deployed to protect the occupant 2d from the impact of the accident.
　本変形例の構成では、乗員を保護するために展開が必要なエアバッグは衝突前の時点で予め選択しており側面衝突に備えていることになる。このため、本変形例では、エアバッグの展開開始までの時間を短縮できる。 In the configuration of this modified example, the airbags that need to be deployed to protect the occupants are selected in advance before the collision to prepare for a side collision. Therefore, in this modified example, it is possible to shorten the time until the deployment of the airbag starts.
［その他の変形例］
　上述の実施形態において、一方座席１ｄと他方座席１ｎは、いずれを運転席としてもよいし、固定された運転席という概念がない自動運転車の座席でもよい。 [Other Modifications]
In the above-described embodiment, either one of the one seat 1d and the other seat 1n may be used as a driver's seat, or may be a seat of an automatic driving vehicle without the concept of a fixed driver's seat.
　上述の実施形態において、一方座席１ｄと他方座席１ｎは、車両の最前列である必要はなく、例えばキャプテンシートを有するような大型の車両における第２列やその他の列であってもよい。また、一方座席１ｄ、他方座席１ｎと共に、更に１以上の座席が横並びしている車両であってもよい。一方座席１ｄと他方座席１ｎの間にセンターコンソールを有する車両であってもよい。 In the above-described embodiment, the one seat 1d and the other seat 1n do not have to be the front row of the vehicle, and may be the second row or other rows of a large vehicle having captain seats, for example. Further, the vehicle may have one or more seats arranged side by side in addition to the one seat 1d and the other seat 1n. The vehicle may have a center console between one seat 1d and the other seat 1n.
　上述の実施形態において、センターサイドエアバッグ２１は、一方座席１ｄに着座した乗員２ｄの頭部における一方の側部を覆うように膨張展開する頭部用クッション部と、乗員２ｄの胴体（肩部から腹部）における一方の側部を覆うように膨張展開する胴体用クッション部とを備えるように構成してもよい。この場合において、胴体用クッション部の保護範囲は、乗員２ｄの肩部から腰部までとなるように構成してもよい。 In the above-described embodiment, the center side airbag 21 includes a head cushion portion that inflates and deploys so as to cover one side of the head of the occupant 2d seated on the seat 1d, and a torso (shoulder portion) of the occupant 2d. It may be configured to include a body cushion portion that is inflated and deployed so as to cover one side of the body (from the abdomen). In this case, the protective range of the trunk cushion may be configured to extend from the shoulders to the waist of the occupant 2d.
　上述の実施形態において、制御部１００は、シートクッション３ｄ，３ｎやヘッドレスト６の内部に格納されていてもよいし、シートクッション３ｄ，３ｎの座面裏側に固定されていてもよい。 In the above-described embodiment, the control unit 100 may be housed inside the seat cushions 3d, 3n or the headrest 6, or may be fixed to the back side of the seat cushions 3d, 3n.
　上述の実施形態において、車両のセンターコンソールが大型の場合、シート間エアバッグ３１が膨張展開できる空間が狭くなるが、この場合、シート間エアバッグ３１はセンターコンソールの上面に沿って膨張展開するようにしてもよい。 In the above-described embodiment, if the center console of the vehicle is large, the space in which the inter-seat airbag 31 can be inflated and deployed becomes narrow. can be
　上述の実施形態において、第１変形例と第２変形例を組み合わせてもよい。つまり、一方座席１ｄには、センターサイドエアバッグモジュール２０、第２シート間エアバッグ４０、第３センターサイドエアバッグ６０が搭載されており、他方座席１ｎには、シート間エアバッグモジュール３０、第２センターサイドエアバッグ５０、第３シート間エアバッグモジュール７０が搭載されている構成でもよい。 In the above embodiment, the first modified example and the second modified example may be combined. That is, one seat 1d is equipped with a center side airbag module 20, a second inter-seat airbag 40 and a third center side airbag 60, while the other seat 1n is equipped with an inter-seat airbag module 30 and a third airbag module. A configuration in which two center side airbags 50 and a third inter-seat airbag module 70 are mounted may be used.
　上述の実施形態において、制御部１００は、シートクッション３ｄ，３ｎに掛かる荷重を検出するセンサからの情報に基づいて、一方座席１ｄ及び／又は他方座席１ｎに乗員が着座していない状態であると判定した場合は、制御手段（ステップＳ３）においてエアバッグの展開は必要ないと判断してもよい。 In the above-described embodiment, the control unit 100 determines that an occupant is not seated on the one seat 1d and/or the other seat 1n based on the information from the sensors that detect the loads applied to the seat cushions 3d and 3n. If so, the control means (step S3) may determine that deployment of the airbag is unnecessary.
　本発明のエアバッグ装置は、車両のフロントシートとリアシートの何れにも適用可能である。本発明のエアバッグ装置は、車両のレイアウトに依存せず、エアバッグ装置の全部又は一部について、複数車種に適用できるようにモジュール化が可能である。 The airbag device of the present invention can be applied to both front seats and rear seats of a vehicle. The airbag system of the present invention can be modularized so that all or part of the airbag system can be applied to a plurality of vehicle types without depending on the layout of the vehicle.
　１ｄ　　　　　一方座席（第１シート）
　１ｎ　　　　　他方座席（第２シート）
　２ｄ，２ｎ　　乗員
　３ｄ，３ｎ　　シートクッション
　４ｄ，４ｎ　　背もたれ部
　５　　　　　　支持部材
　６　　　　　　ヘッドレスト
　７　　　　　　ステアリング
　８ｄ，８ｎ　　シートバックフレーム
　１０　　　　　エアバッグ装置
　２０　　　　　センターサイドエアバッグモジュール
　２１　　　　　センターサイドエアバッグ
　２２　　　　　インフレータ
　３０　　　　　シート間エアバッグモジュール
　３１　　　　　シート間エアバッグ
　３２　　　　　インフレータ
　４０　　　　　第２シート間エアバッグモジュール
　４１　　　　　第２シート間エアバッグ
　４２　　　　　インフレータ
　５０　　　　　第２センターサイドエアバッグモジュール
　５１　　　　　第２センターサイドエアバッグ
　５２　　　　　インフレータ
　６０　　　　　第３センターサイドエアバッグモジュール
　６１　　　　　第３センターサイドエアバッグ
　６２　　　　　インフレータ
　７０　　　　　第３シート間エアバッグモジュール
　７１　　　　　第３シート間エアバッグ
　７２　　　　　インフレータ 1d one seat (first seat)
1n other seat (second seat)
2d, 2n passenger 3d, 3n seat cushion 4d, 4n backrest 5 support member 6 headrest 7 steering 8d, 8n seat back frame 10 airbag device 20 center side airbag module 21 center side airbag 22 inflator 30 inter-seat airbag module 31 inter-seat airbag 32 inflator 40 second inter-seat airbag module 41 second inter-seat airbag 42 inflator 50 second center side airbag module 51 second center side airbag 52 inflator 60 third center side airbag module 61 Third center side airbag 62 Inflator 70 Third inter-seat airbag module 71 Third inter-seat airbag 72 Inflator

Claims (7)

  1. 　車両の車幅方向に並んで配置される第１シートと第２シートを少なくとも備えた車両に用いられるエアバッグ装置であって、
    　前記第１シートに着座した乗員の車幅方向中心側で膨張展開するセンターサイドエアバッグと、該センターサイドエアバッグを膨張させるガスを噴射するインフレータとを有するセンターサイドエアバッグモジュールと、
    　前記第１シートと前記第２シートとの間の空間を埋めるように膨張展開するシート間エアバッグと、該シート間エアバッグを膨張させるガスを噴射するインフレータとを有するシート間エアバッグモジュールと、を備え、
    　前記センターサイドエアバッグモジュールは、前記第１シートの車幅方向中心側に設けられており、前記シート間エアバッグモジュールは、前記第２シートの車幅方向中心側に設けられている、エアバッグ装置。     An airbag device for use in a vehicle including at least a first seat and a second seat arranged side by side in a vehicle width direction of the vehicle,
    a center side airbag module having a center side airbag that inflates and deploys on the vehicle width direction center side of an occupant seated in the first seat, and an inflator that injects gas for inflating the center side airbag;
    an inter-seat airbag module having an inter-seat airbag that inflates and deploys so as to fill a space between the first seat and the second seat; and an inflator that injects gas for inflating the inter-seat airbag; with
    The center side airbag module is provided on the center side of the first seat in the vehicle width direction, and the inter-seat airbag module is provided on the center side of the second seat in the vehicle width direction. Device.
  2. 　前記シート間エアバッグは、膨張展開が完了した状態では、前記第１シート及び前記第２シートの各背もたれ部の側部の側面に接触し、前記各背もたれ部の側部を互いに押す状態となる、請求項１に記載のエアバッグ装置。 When the inter-seat airbag is fully inflated and deployed, the inter-seat airbag comes into contact with the side surfaces of the backrest portions of the first seat and the second seat and presses the side portions of the backrest portions against each other. 2. The airbag device according to claim 1.
  3. 　膨張展開が完了した状態において、前記シート間エアバッグは、前記センターサイドエアバッグよりも内部のガス圧力が高圧である、請求項１又は２に記載のエアバッグ装置。 3. The airbag device according to claim 1 or 2, wherein the gas pressure inside the inter-seat airbag is higher than that of the center side airbag when the inflation and deployment are completed.
  4. 　膨張展開が完了した状態において、前記シート間エアバッグは、前記第１シートに着座した乗員とは非接触である、請求項１又は２に記載のエアバッグ装置。 The airbag device according to claim 1 or 2, wherein the inter-seat airbag is not in contact with an occupant seated in the first seat in a state in which inflation and deployment is completed.
  5. 　前記第２シートに着座した乗員の車幅方向中心側で膨張展開する第２センターサイドエアバッグと、該第２センターサイドエアバッグを膨張させるガスを噴射するインフレータとを有する第２センターサイドエアバッグモジュールを備え、該第２センターサイドエアバッグモジュールは、前記第２シートの車幅方向中心側に設けられていると共に、
    　前記第１シートと前記第２シートとの間の空間を埋めるように膨張展開する第２シート間エアバッグと、該第２シート間エアバッグを膨張させるガスを噴射するインフレータとを有する第２シート間エアバッグモジュールを備え、該第２シート間エアバッグモジュールは、前記第１シートの車幅方向中心側に設けられている、請求項１又は２に記載のエアバッグ装置。     A second center side airbag having a second center side airbag that inflates and deploys at the vehicle width direction center side of an occupant seated in the second seat, and an inflator that injects gas for inflating the second center side airbag. a module, wherein the second center side airbag module is provided on the center side of the second seat in the vehicle width direction,
    A second seat having a second inter-seat airbag that inflates and deploys so as to fill a space between the first seat and the second seat, and an inflator that injects gas for inflating the second inter-seat airbag. 3. The airbag device according to claim 1, further comprising an inter-seat airbag module, wherein the second inter-seat airbag module is provided on the center side of the first seat in the vehicle width direction.
  6. 　前記車両は、前記第１シート及び前記第２シートが、車両に対して前向きの状態から回転させた状態で走行することが可能な車両であって、
    　前記第１シートの背もたれ部の車幅方向の一方の端部に設けられた前記センターサイドエアバッグモジュールと、他方の端部に設けられた第３センターサイドエアバッグモジュールと、前記第２シートの背もたれ部の車幅方向の一方の端部に設けられた前記シート間エアバッグモジュールと、他方の端部に設けられた第３シート間エアバッグモジュールとを有しており、
    　前記第１シート及び前記第２シートのそれぞれの状態を取得して記録する状態取得手段と、
    　前記状態取得手段が取得した情報に基づいて、前記第１シート又は前記第２シートに着座している乗員が、慣性力が作用する方向へ移動するのを拘束して保護するために必要となるエアバッグを選択する選択手段と、
    　側面衝突時には、前記選択手段が選択したエアバッグが膨張展開するようにインフレータに信号を送信する制御手段と、を備えた、請求項１又は２に記載のエアバッグ装置。     The vehicle is a vehicle that can travel with the first seat and the second seat rotated from a forward facing state with respect to the vehicle,
    The center side airbag module provided at one end of the backrest portion of the first seat in the vehicle width direction, the third center side airbag module provided at the other end, and the second seat. The inter-seat airbag module is provided at one end of the backrest in the vehicle width direction, and the third inter-seat airbag module is provided at the other end,
    a state acquiring means for acquiring and recording respective states of the first sheet and the second sheet;
    Based on the information acquired by the state acquisition means, it is necessary to restrain and protect the occupant seated in the first seat or the second seat from moving in the direction in which the inertial force acts. a selection means for selecting an airbag;
    3. The airbag device according to claim 1, further comprising control means for transmitting a signal to an inflator so that the airbag selected by said selection means is inflated and deployed at the time of a side collision.
  7. 　前記制御手段が、前記選択手段が選択したエアバッグが設けられたシートと隣接している他方のシートに設けられたシート間エアバッグが膨張展開するようにインフレータに信号を送信する手段を備えている、請求項６に記載のエアバッグ装置。 The control means comprises means for transmitting a signal to an inflator so that an inter-seat airbag provided on the other seat adjacent to the seat provided with the airbag selected by the selection means is inflated and deployed. 7. The airbag device of claim 6, wherein:
PCT/JP2022/041478 2021-12-10 2022-11-08 Airbag device WO2023106011A1 (en)

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JP2017088131A (en) * 2015-11-17 2017-05-25 三菱自動車工業株式会社 Far side airbag device for vehicle
US20170232922A1 (en) * 2016-02-16 2017-08-17 Tk Holdings Inc. Center side airbag module
JP2017170941A (en) * 2016-03-18 2017-09-28 株式会社Ｓｕｂａｒｕ Air bag device
JP2019177724A (en) * 2018-03-30 2019-10-17 三菱自動車工業株式会社 Vehicle airbag device
JP2020124944A (en) * 2019-02-01 2020-08-20 三菱自動車工業株式会社 Airbag device

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Publication number Priority date Publication date Assignee Title
JP2017088131A (en) * 2015-11-17 2017-05-25 三菱自動車工業株式会社 Far side airbag device for vehicle
US20170232922A1 (en) * 2016-02-16 2017-08-17 Tk Holdings Inc. Center side airbag module
JP2017170941A (en) * 2016-03-18 2017-09-28 株式会社Ｓｕｂａｒｕ Air bag device
JP2019177724A (en) * 2018-03-30 2019-10-17 三菱自動車工業株式会社 Vehicle airbag device
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