WO2021161748A1 - エアバッグ装置及び車両用シート - Google Patents
エアバッグ装置及び車両用シート Download PDFInfo
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- WO2021161748A1 WO2021161748A1 PCT/JP2021/001834 JP2021001834W WO2021161748A1 WO 2021161748 A1 WO2021161748 A1 WO 2021161748A1 JP 2021001834 W JP2021001834 W JP 2021001834W WO 2021161748 A1 WO2021161748 A1 WO 2021161748A1
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- WIPO (PCT)
- Prior art keywords
- seat
- airbag device
- airbag
- seat frame
- occupant
- Prior art date
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- 230000036544 posture Effects 0.000 description 10
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 2
- 239000006261 foam material Substances 0.000 description 2
- 210000004705 lumbosacral region Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Images
Classifications
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/23138—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/233—Inflatable members characterised by their shape, construction or spatial configuration comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other
-
- 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
- B60R2021/003—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks characterised by occupant or pedestian
- B60R2021/0039—Body parts of the occupant or pedestrian affected by the accident
- B60R2021/0044—Chest
-
- 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
- B60R2021/003—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks characterised by occupant or pedestian
- B60R2021/0039—Body parts of the occupant or pedestrian affected by the accident
- B60R2021/0048—Head
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/23138—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection
- B60R2021/23146—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection seat mounted
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R2021/23161—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for protecting at least two passengers, e.g. preventing them from hitting each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/233—Inflatable members characterised by their shape, construction or spatial configuration comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other
- B60R2021/23308—Inflatable members characterised by their shape, construction or spatial configuration comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other the individual compartments defining the external shape of the bag
Definitions
- the present invention relates to a vehicle seat and an airbag device mounted on the seat.
- the present invention relates to an airbag device capable of reliably restraining an occupant regardless of the posture of the occupant seated in the seat.
- Airbags are installed in a vehicle to protect the occupants in the event of a vehicle accident.
- Airbags are, for example, so-called driver airbags that inflate from near the center of the steering wheel to protect the driver, and deploy downward inside the window of the vehicle to cause lateral impact, rollover, or overturning of the vehicle.
- driver airbags that inflate from near the center of the steering wheel to protect the driver, and deploy downward inside the window of the vehicle to cause lateral impact, rollover, or overturning of the vehicle.
- curtain airbag that sometimes protects the occupant
- a side airbag that is deployed between the occupant and the side panel to protect the occupant in the event of a lateral impact of the vehicle.
- the present invention has been made in view of the above circumstances, and an object of the present invention is to provide an airbag device capable of reliably restraining an occupant regardless of the posture of the occupant seated in the seat.
- the occupant's head direction is referred to as "upward”
- the occupant's lumbar direction is referred to as “downward”
- the coordinate axis is referred to as "vertical direction”.
- the present invention is an airbag device mounted on a vehicle seat.
- the vehicle seat has a structure in which seat frames are arranged on the left and right sides inside the seat back.
- the airbag device according to the present invention is fixed to a side portion of the seat frame of the vehicle seat, and is housed in the seat bag in an elongated compressed state with an inflator that generates expansion gas, and is discharged from the inflator. It is equipped with an airbag that expands and expands due to the expansion gas that is generated.
- the contained airbag is arranged along the seat frame and includes a lower region below the inflator and an upper region above the inflator. Then, the lower region is arranged inside the seat frame, and the upper region is arranged outside the seat frame.
- the seat frame is such that, for example, the frames on the left and right sides are connected in addition to the seat frames (side frames) on the left and right sides. It can include a frame that extends horizontally.
- elongated and compressed means a state in which it is formed into a rod shape by a method such as rolling or folding, and the compression method does not matter.
- inside the seat frame means the occupant side of the seat frame extending in the vertical direction
- outside the seat frame means the side opposite to the occupant
- “below the inflator” and “above the inflator” do not mean strictly above the upper end of the inflator and below the lower end, but are based on, for example, the inflator fixed to the seat frame. , It can be generally below or above the fixed portion of the inflator.
- the lower lower region when the airbag is divided into upper and lower parts with the inflator as a boundary, the lower lower region is arranged inside the seat frame and the upper upper region is outside the seat frame. Is placed in. Therefore, when the airbag is deployed, the lower region can be deployed to the occupant side with the inner surface (the surface on the occupant side) of the seat frame as the reaction force surface, and the occupant's waist to the chest area can be quickly restrained. can.
- the upper region expands on the outside of the seat frame, when the seat is viewed from the front, it expands more in the width direction than the lower region, and the occupant's shoulders and the area around the head can be reliably restrained. Since the human body has the widest shoulders and the upper body is large and easy to move from side to side, it is important to protect the area around the head from the shoulders of the occupant with a spacious upper area.
- the upper area can be inserted under the seatbelt near the shoulder of the occupant, it can be deployed by using the reaction force of the seatbelt, and the deployment shape around the occupant's head can be changed. It will contribute to stabilization.
- the lower region can mainly protect the vicinity of the chest from the waist of the occupant, and the upper region can mainly protect the vicinity of the occupant's head.
- the lower region is arranged on both the left and right sides of the seat back, and the upper region can be arranged so as to connect the upper end portions of the lower regions on both the left and right sides.
- the upper region can be configured to expand from the vicinity of the upper edge of the seat back and to wrap around the occupant's head.
- the left and right lower regions and the central upper region are connected, and the airbag expands in a dome shape to completely cover the sides and upper part of the occupant seated on the seat.
- the airbag expands in a dome shape to completely cover the sides and upper part of the occupant seated on the seat.
- one inflator can be arranged near the boundary between the lower region and the upper region.
- the inflator can be arranged inside or outside the seat frame.
- the inflator When the inflator is placed inside the seat frame, the lower area can be expanded quickly. On the other hand, when the inflator is arranged outside the seat frame, it is easy to secure a place for installing the inflator, that is, the inflator can be easily fixed to the seat frame with a high degree of freedom.
- the airbag may be provided with a fixing tab having one end connected to the lower region, and the other end of the tab may be fixed to the seat frame. It is preferable that one end of the tab is connected to the lowermost end of the lower region of the airbag.
- the lower region of the airbag By fixing the lower region of the airbag to the seat frame using tabs, the lower region does not pop out or flutter when the airbag is deployed, and the deployment posture and deployment behavior of the lower region. Will be stable. As a result, it is possible to reliably restrain the vicinity of the waist of the occupant inside the seat frame.
- the other end of the tab can be fixed to the rear end of the seat frame.
- the other end of the tab can extend past the rear end of the seat frame and be fixed to the outside of the seat frame.
- the “rear end of the seat frame” is a concept that includes the rearmost part of the seat frame in the vehicle seat.
- passing through the rear end of the seat frame is a concept that includes the state of reaching the outside of the seat frame from the inside (occupant side) of the seat frame to the rear of the rear end (rear portion). be.
- FIG. 1 is a perspective view mainly showing an external shape of a vehicle seat on which the side airbag device according to the present invention can be mounted, and the side airbag device is not shown.
- FIG. 2 is a perspective view showing an internal structure (seat frame) that functions as a frame of the vehicle seat shown in FIG. 1, and the side airbag device is not shown.
- 3A and 3B are a side view (A) and a front view (B) showing a state in which the airbag device according to the first embodiment of the present invention is mounted on a vehicle seat, and the vehicle seat is shown in perspective. do.
- FIG. 1 is a perspective view mainly showing an external shape of a vehicle seat on which the side airbag device according to the present invention can be mounted, and the side airbag device is not shown.
- FIG. 2 is a perspective view showing an internal structure (seat frame) that functions as a frame of the vehicle seat shown in FIG. 1, and the side airbag device is not shown.
- 3A and 3B are a side view (
- FIG. 4 shows the structure of the airbag adopted in the airbag device according to the first embodiment of the present invention, in which (A) shows the state in which the airbag is deployed (the state in which the airbag is placed flat before storage). It is a plan view which shows, and is the front view which shows the rolled state (state at the time of accommodating) of (B).
- FIG. 5 shows an operating state (expanded state of the airbag) of the airbag device according to the first embodiment of the present invention, and shows a state in which (A) is viewed from the side surface in the vehicle width direction, and (B). ) Indicates the state seen from the front.
- FIG. 6A and 6B are a side view (A) and a front view (B) showing a state in which the airbag device according to the second embodiment of the present invention is mounted on a vehicle seat, and the vehicle seat is shown in perspective. do.
- FIG. 7 shows the structure of the airbag adopted in the airbag device according to the third embodiment of the present invention, in which (A) shows the state in which the airbag is deployed (the state in which the airbag is placed flat before storage). It is a plan view which shows, and is the front view which shows the rolled state (state at the time of accommodating) of (B).
- FIG. 7 shows the structure of the airbag adopted in the airbag device according to the third embodiment of the present invention, in which (A) shows the state in which the airbag is deployed (the state in which the airbag is placed flat before storage). It is a plan view which shows, and is the front view which shows the rolled state (state at the time of accommodating) of (B).
- FIG. 8 schematically shows an operating state (expanded state of the airbag) of the airbag device according to the third embodiment of the present invention, and is a view seen from the left side surface in the vehicle width direction.
- 9 (A) is a schematic cross-sectional view of FIG. 8 in the A1-A1 direction.
- 9 (B) and 9 (C) are cross-sectional views showing variations in the connecting structure of the seat frame and the tab.
- the vehicle seat according to the embodiment of the present invention will be described in detail with reference to the attached drawings.
- the "front” shown in each figure is the front of the vehicle (direction of travel)
- the “rear” is the rear of the vehicle (opposite the direction of travel)
- the “inside” is the width of the vehicle.
- the inside (occupant side) and “outside” indicate the outside in the vehicle width direction (opposite to the occupant).
- FIG. 1 is a perspective view mainly showing an external shape of a vehicle seat to which the side airbag device according to the present invention can be applied, and the side airbag device is not shown.
- FIG. 2 is a perspective view showing an internal structure (seat frame) that functions as a frame of the vehicle seat shown in FIG. 1, and the side airbag device is not shown here either.
- the seat cushion 2 of the portion where the occupant sits; the seat back 1 forming the backrest; and the headrest 3 connected to the upper end of the seat back 1 Includes.
- a seat back frame 1f forming a skeleton of the seat is provided inside the seat back 1, and a pad and a skin (not shown) made of a urethane foam material or the like are provided on the surface and the periphery thereof.
- the seat cushion 2 is also provided with a pad and a skin (not shown) made of a urethane foam material or the like on the upper surface and the periphery of the seating frame 2f.
- the seating frame 2f and the seat back frame 1f are connected via a reclining mechanism 4.
- the seat back frame 1f includes side frames 10L and 10R which are arranged apart from each other on the left and right and extend in the vertical direction, and an upper frame 11 which connects the upper ends of these side frames 10L and 10R. , It is configured in a frame shape by a lower frame connecting the lower ends.
- FIG. 4 shows the structure of the airbag 14 adopted in the airbag device according to the first embodiment
- FIG. 4A is a plane showing a state in which the airbag 14 is deployed (a flat state before accommodation). It is a front view which shows the rolled state (state at the time of accommodating) of (B).
- the airbag device according to the present embodiment is housed in the left and right sides of the seat back 1, and is housed in the seat bag 1 in a rolled or folded state with a pair of inflators 12L and 12R that generate expansion gas. , The airbag 14 is deployed by the expansion gas released from the inflators 12L and 12R.
- the seat back 1 is separated from the headrest 3, but the side airbag device according to the present invention can also be applied to a seat back with an integrated headrest.
- the airbag 14 in the housed state is arranged along the left and right side frames 10L and 10R, and has lower regions 16L and 16R located below the inflators 12L and 12R, and an upper portion in addition to the left and right side frames 10L and 10R. It is arranged along the seat frame 11 of the above and includes an upper region 18 located above the inflators 12L and 12R.
- FIG. 3 the boundary position between the upper region 18 and the lower regions 16L and 16R of the airbag 14 is indicated by L0. Further, in FIG. 4, the range corresponding to the lower regions 16L and 16R and the range corresponding to the upper region 18 are shown surrounded by a dashed-dotted line. Further, reference numerals 20L and 20R indicate an introduction portion of the inflator 12L and 12R.
- the upper region 18 is formed so as to connect the upper end portions of the lower regions 16L and 16R on both the left and right sides, and is adapted to wrap the occupant's head from the vicinity of the upper edge of the seat back 1.
- the lower regions 16L and 16R mainly protect the vicinity of the chest from the lumbar region of the occupant, and the upper region 18 mainly protects the vicinity of the occupant's head (from the shoulder to the head).
- the inflators 12L and 12R are fixed to the inside of the side frames 10L and 10R by stud bolts (not shown) or the like. Further, the lower regions 16L and 16R are also arranged inside the side frames 10L and 10R.
- the upper region 18 is arranged on the upper part of the seat frame 11 through the outside of the side frames 10L and 10R. The upper region 18a on the seat frame 11 is accommodated, for example, in a folded state in an omega ( ⁇ ) shape.
- the single airbag 14 is divided into an upper region 18 and a lower region 16L, 16R with the inflator 12L, 12R as a boundary, but at least more than the inflator 12L, 12R.
- the upper side can be roughly defined as the upper region 18, and the lower side can be roughly defined as the lower regions 16L and 16R.
- the inflators 12L and 12R are stud bolted (not shown) in a state where the airbag 14 is elongated and compressed. ) To fix it inside the side frames 10L and 10R.
- the lower regions 16L and 16R are also arranged inside the side frames 10L and 10R, and are fixed to the side frames 10L and 10R by connecting tools such as tabs as necessary. Subsequently, the portion above the inflators 12L and 12R (upper region 18) is bent and arranged outside the side frames 10L and 10R.
- FIG. 5 shows an operating state (deployed state of the airbag 14) of the airbag device according to the first embodiment of the present invention, and (A) shows a state seen from the side surface in the vehicle width direction. B) shows the state seen from the front.
- the upper region 18 of the airbag 14 jumps over the headrest 3 from the upper end of the seat back 1 and expands forward, and covers the occupant's occipital region from the back to the front. Therefore, it is possible to prevent the upper region 18 from directly impacting the occupant's head when the airbag 14 is deployed, and it is possible to form a protective region in a wide range around the occupant's head.
- the seat is wider in the width direction than the lower regions 16L and 16R when the seat is viewed from the front, and the shoulder portion of the occupant.
- the area around the head can be reliably restrained.
- the upper region 18 of the airbag 14 can be inserted under the seatbelt SB near the shoulder of the occupant, it can be deployed by utilizing the reaction force of the seatbelt SB, and the occupant's head can be deployed.
- the unfolded shape around the part is stable.
- FIGSecond Example 6A and 6B are a side view (A) and a front view (B) showing a state in which the airbag device according to the second embodiment of the present invention is mounted on a vehicle seat, and the vehicle seat is shown in perspective. do.
- the components common to or corresponding to those in the first embodiment described above are designated by the same reference numerals, and duplicated description will be omitted.
- the inflators 12L and 12R are arranged outside the side frames 10L and 10R.
- Other configurations are the same as those in the first embodiment.
- FIG. 7 shows the structure of the airbag 14 adopted in the airbag device according to the third embodiment of the present invention, in which FIG. 7A shows a state in which the airbag 14 is deployed (a state in which the airbag 14 is laid flat before being accommodated). ), And is a front view showing a rolled state (state at the time of accommodation) in (B).
- FIG. 8 schematically shows an operating state (deployed state of the airbag 14) of the airbag device according to the third embodiment of the present invention, and is a view seen from the left side surface in the vehicle width direction.
- 9 (A) is a schematic cross-sectional view of FIG. 8 in the A1-A1 direction.
- 9 (B) and 9 (C) are cross-sectional views showing variations in the connecting structure of the seat frame and the tab.
- FIGS. 8 and 9 only the left side of the seat is shown, but the right side has the same configuration.
- fixing tabs 102L and 102R are attached to the left and right lower ends of the airbag 14. One end of these tabs 102L (102R) is connected to the lower region 16L (16R) of the airbag 14, and the other end is fixed to the seat frame 10L (10R).
- the other end (rear end) of the tab 102L is fixed by the fixture 104 inside the rear end portion of the seat frame 10L.
- the other end (rear end) of the tab 102L is fixed by the fixture 104 on the outside (rear end side) of the rear end portion of the seat frame 10L.
- the other end (rear end) of the tab 102L passes from the inside (occupant side) of the seat frame 10L to the rear of the rear end (rear end) and is outside the seat frame 10L. It reaches (left side) and is fixed by the fixture 104.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
- Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)
- Seats For Vehicles (AREA)
Abstract
Description
図3は、本発明の第1実施例に係るエアバッグ装置を車両用シートに搭載した様子を示す側面図(A)、正面図(B)であり、車両用シートに関しては透視で示すものとする。図4は、第1実施例に係るエアバッグ装置に採用されるエアバッグ14の構造を示すものであり、(A)がエアバッグ14を展開した状態(収容前の平置き状態)を示す平面図であり、(B)がロールした状態(収容時の状態)を示す正面図である。
図6は、本発明の第2実施例に係るエアバッグ装置を車両用シートに搭載した様子を示す側面図(A)、正面図(B)であり、車両用シートに関しては透視で示すものとする。なお、上述した第1実施例と共通又は対応する構成要素については同一の符号を付し、重複した説明は省略する。
図7は、本発明の第3実施例に係るエアバッグ装置に採用されるエアバッグ14の構造を示すものであり、(A)がエアバッグ14を展開した状態(収容前に平置きした状態)を示す平面図であり、(B)がロールした状態(収容時の状態)を示す正面図である。図8は、本発明の第3実施例に係るエアバッグ装置の作動状態(エアバッグ14の展開状態)を概略的に示すものであり、車両幅方向の左側面から見た様子である。図9(A)は、図8のA1-A1方向の概略断面図である。図9(B)、(C)は、シートフレームとタブとの連結構造のバリエーションを示す断面図である。
Claims (12)
- 車両用シートに装備されるエアバッグ装置であって、
前記車両用シートは、シートバック内部の左右側部にシートフレームが配置される構造であり、
当該エアバッグ装置は、
前記車両用シートの前記シートフレームの側部に固定され、膨張ガスを発生するインフレータと、
細長く圧縮された状態で前記シートバッグ内に収容され、前記インフレータから放出される膨張ガスによって膨張・展開するエアバッグと、を備え、
収容状態の前記エアバッグは、前記シートフレームに沿って配置され、前記インフレータよりも下側の下部領域と、前記インフレータよりも上側の上部領域とを含み、
前記下部領域が前記シートフレームの内側に配置され、前記上部領域が前記シートフレームの外側に配置されることを特徴とするエアバッグ装置。 - 前記エアバッグの展開時に、前記下部領域は、主に乗員の腰部から胸部付近を保護し、前記上部領域は、主に乗員の頭部付近を保護する構成であることを特徴とする請求項1に記載のエアバッグ装置。
- 前記下部領域は、前記シートバックの左右両側に配置され、
前記上部領域は、これら左右両側の下部領域の上端部分を連結するように配置されることを特徴とする請求項2に記載のエアバッグ装置。 - 前記上部領域は、前記シートバックの上縁付近から展開し、乗員の頭部を包むように展開することを特徴とする請求項3に記載のエアバッグ装置。
- 前記シートフレームの左右両側部において、前記下部領域と上部領域との境界付近に前記インフレータが1コずつ配置されることを特徴とする請求項3又は4に記載のエアバッグ装置。
- 前記インフレータは、前記シートフレームの内側に配置されることを特徴とする請求項1乃至5のいずれか1項に記載のエアバッグ装置。
- 前記インフレータは、前記シートフレームの外側に配置されることを特徴とする請求項1乃至5のいずれか1項に記載のエアバッグ装置。
- 前記エアバッグは、一端が前記下部領域に連結された固定用のタブを備え、
前記タブの他端が前記シートフレームに対して固定されることを特徴とする請求項1乃至7の何れか1項に記載のエアバッグ装置。 - 前記タブの一端が、前記下部領域の最下部に連結されることを特徴とする請求項8に記載のエアバッグ装置。
- 前記タブの他端が、前記シートフレームの後端部に固定されることを特徴とする請求項8又は9に記載のエアバッグ装置。
- 前記タブの他端が、前記シートフレームの後端部を通過するように延び、当該シートフレームの外側に固定されることを特徴とする請求項8又は9に記載のエアバッグ装置。
- 請求項1乃至11の何れか1項に記載のエアバッグ装置を備えた車両用シート。
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EP21753543.4A EP4105084A4 (en) | 2020-02-16 | 2021-01-20 | AIR BAG DEVICE AND VEHICLE SEAT |
KR1020227031153A KR20220131391A (ko) | 2020-02-16 | 2021-01-20 | 에어백 장치 및 차량용 시트 |
JP2022500296A JP7270826B2 (ja) | 2020-02-16 | 2021-01-20 | エアバッグ装置及び車両用シート |
US17/904,169 US11858448B2 (en) | 2020-02-16 | 2021-01-20 | Airbag device and vehicle seat |
CN202180010085.XA CN115003560B (zh) | 2020-02-16 | 2021-01-20 | 安全气囊装置以及车辆用座椅 |
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EP (1) | EP4105084A4 (ja) |
JP (1) | JP7270826B2 (ja) |
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JP7446790B2 (ja) * | 2019-11-22 | 2024-03-11 | 株式会社ダイセル | エアバッグ装置、及び車両用シート |
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KR20220131391A (ko) | 2022-09-27 |
EP4105084A1 (en) | 2022-12-21 |
JPWO2021161748A1 (ja) | 2021-08-19 |
US11858448B2 (en) | 2024-01-02 |
JP7270826B2 (ja) | 2023-05-10 |
CN115003560A (zh) | 2022-09-02 |
US20230069779A1 (en) | 2023-03-02 |
EP4105084A4 (en) | 2024-03-27 |
CN115003560B (zh) | 2023-04-28 |
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