WO2019244493A1 - サイドエアバッグ装置及び、これを備えた車両用シート - Google Patents
サイドエアバッグ装置及び、これを備えた車両用シート Download PDFInfo
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- WO2019244493A1 WO2019244493A1 PCT/JP2019/018462 JP2019018462W WO2019244493A1 WO 2019244493 A1 WO2019244493 A1 WO 2019244493A1 JP 2019018462 W JP2019018462 W JP 2019018462W WO 2019244493 A1 WO2019244493 A1 WO 2019244493A1
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- chamber
- vehicle
- airbag device
- main chamber
- side airbag
- Prior art date
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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
- B60R21/23—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
- 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
- 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
- B60R21/239—Inflatable members characterised by their venting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
- B60R21/264—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic
-
- 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
- B60R2021/0002—Type of accident
- B60R2021/0006—Lateral collision
-
- 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
- B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
- B60R21/264—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic
- B60R2021/2642—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic comprising a plurality of combustion chambers or sub-chambers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/2334—Expansion control features
- B60R21/2346—Soft diffusers
Definitions
- the present invention relates to a side airbag device and a vehicle seat provided with the same.
- the present invention relates to an improvement of a side airbag device including a pre-chamber that is deployed inside a main chamber (occupant side).
- the airbag is, for example, inflated from the vicinity of the center of the steering wheel of the automobile to protect the driver, a so-called driver airbag, deployed downward inside the window of the automobile and impacted or rolled in the lateral direction of the vehicle,
- a curtain airbag that protects an occupant in the event of a rollover accident
- a side airbag that is deployed between the occupant and a side panel to protect the occupant in the event of a vehicle lateral impact.
- the present invention relates to a side airbag device and a vehicle seat including the same.
- the side airbag device described in Patent Document 1 below includes a main airbag serving as a main and restraining an occupant, and an auxiliary airbag different from the main airbag.
- the occupant is restrained early by inflating and deploying the auxiliary airbag prior to the main airbag.
- a side airbag device since there is a great restriction in the installation area, there is a strong demand for downsizing the device.
- appropriate occupant protection performance is required by improving deployment speed and stabilizing deployment behavior and deployment shape.
- the present invention has been made in view of the above situation, and an object of the present invention is to provide a side airbag device capable of quickly and appropriately restraining an occupant, and a vehicle seat provided with the same. It is another object of the present invention to provide a side airbag device that contributes to downsizing of the device and a vehicle seat including the same.
- the present invention is applied to a side airbag device including an inflator that generates inflation gas and an airbag that is deployed from a side of a vehicle seat to protect an occupant by the inflation gas.
- the airbag deploys toward the front of the vehicle; and accommodates the inflator, and deploys ahead of the main chamber in the vehicle width direction inside the main chamber. And a pre-chamber to start.
- the main chamber is partitioned into a front area and a rear area by a partition.
- a front vent that guides the inflation gas from the prechamber to a front area of the main chamber and a rear vent that guides the inflation gas to a front area of the main chamber are provided at a boundary between the main chamber and the prechamber.
- the pre-chamber in the initial stage of operation of the side airbag device, the pre-chamber starts to be deployed first, and it is possible to quickly restrain the occupant from moving outward in the vehicle width direction. It becomes.
- the pre-chamber looks like pressing the occupant inward in the vehicle width direction, it is possible to suppress the generation of a force that pushes the occupant diagonally forward from the back direction. That is, the deployment of the airbag prevents the occupant from being pushed in the direction in which the seatbelt is pulled out (the traveling direction), and it is possible to maximize the restraint performance while suppressing harm to the occupant.
- the pre-chamber can be provided so as to cover at least a part of the partition of the main chamber when viewed from a lateral direction of the vehicle.
- the lower portion of the pre-chamber may have a lower protruding portion that protrudes forward of the vehicle when viewed from the lateral direction of the vehicle and that is located rearward of the front end portion of the main chamber.
- the upper portion of the pre-chamber may have an upper protruding portion that projects forward of the vehicle when viewed from the lateral direction of the vehicle and that is located on the vehicle rear side of the front end portion of the main chamber.
- the pre-chamber With the pre-chamber with the upper protruding portion, when the airbag is deployed, the upper protruding portion is located near the occupant's head, and the head that is likely to cause injury can be quickly restrained.
- the lower protruding portion in the pre-chamber when the airbag is deployed, the lower protruding portion is located near the lumbar portion of the occupant and pushes the lumbar portion close to the center of gravity of the human body, so that an accident occurs. The occupant restraint performance in the initial stage is improved.
- the rear vent is formed in at least two places. Since the rear region of the main chamber is located near the inflator housed in the pre-chamber, the number of rear vents is set to plural instead of one, whereby the inflation gas is quickly sent into the main chamber. As a result, the main chamber can be quickly expanded and deployed.
- the rear vent can be formed above an intermediate portion in the height direction (or vertical direction) of the pre-chamber.
- the side airbag device When the side airbag device is activated, the movement of the occupant in the lateral direction (the width direction of the vehicle) is quickly restrained by the deployment of the pre-chamber.
- the rear vent is arranged above, the upper portion of the main chamber located near the occupant's head is developed earlier, and the occupant's head can be quickly restrained. That is, it is possible to minimize the injury to the head and neck of the occupant.
- the front vent is formed below an intermediate portion of the pre-chamber in a height direction (or a vertical direction).
- a height direction or a vertical direction.
- a boundary between the front region and the rear region can be defined by a baffle plate.
- the baffle plate is provided with a baffle vent that is in fluid communication with the front area and the rear area.
- the gas is configured to flow between the front area and the rear area of the main chamber, the gas flows from the pre-chamber to the front area and the rear area of the main chamber, and in addition, the gas flows from the rear area of the main chamber to the front area. Gas will also flow into the area. Therefore, the entire main chamber (particularly, the front region) can be more quickly deployed.
- the air conditioner may further include a flow regulating member that surrounds the inflator inside the pre-chamber and regulates the flow of the inflation gas. If the rectifying member has, for example, an opening at the upper end and the lower end of the rectifying member to guide the inflation gas discharged from the inflator in the vertical direction, the gas is quickly supplied to the entire height direction of the pre-chamber. can do.
- the pre-chamber may be provided so as to overlap and expand with the frame side wall when viewed from the side of the vehicle.
- the frame is reliably deployed toward the center of the seat in a state where the frame side wall receives the reaction force generated when the pre-chamber is deployed. Even after the deployment, the pressure from the occupant can be received by the frame side wall, and the occupant can be reliably restrained in the seat center direction.
- the main chamber is deployed so as not to overlap the frame side wall when viewed from the side of the vehicle. In this case, the main chamber can be quickly and smoothly deployed without being hindered by the side frame and the pre-chamber.
- the side airbag according to the present invention includes a type that is deployed on the door side (outside) of the seat and a type that is deployed on the vehicle center side of the seat.
- Side airbags of the type deployed on the vehicle center side of the seat are referred to as, for example, a far side airbag, a front center airbag, a rear center airbag, and the like.
- FIG. 1 is a perspective view mainly showing an external appearance of a vehicle seat used for a vehicle seat according to the present invention, and illustration of an airbag unit is omitted.
- FIG. 2 is a perspective view showing an internal structure (seat frame) functioning as a framework of the vehicle seat shown in FIG. 1, and illustration of an airbag unit is omitted.
- FIG. 3 is a schematic side view of the vehicle seat according to the present invention, and shows a state in which the airbag unit is housed as viewed from the outside in the vehicle width direction.
- FIG. 4 is a cross-sectional view showing the structure of the vehicle seat according to the present invention, and corresponds to a part of the cross section in the A1-A1 direction of FIG. FIG.
- FIG. 5A is a schematic side view of the vehicle seat according to the first embodiment of the present invention, and shows a state in which the airbag is deployed as viewed from the outside in the vehicle width direction (the side opposite to the occupant).
- FIG. 5 (B) is a front view showing the deployed state of the airbag, as viewed from the front in the traveling direction to the rear.
- 6A and 6B are cross-sectional views showing the structure of the airbag device according to the first embodiment of the present invention, where FIG. 6A is a direction A1-A1 in FIG. 5A, and FIG. An A2-A2 direction and (C) correspond to a cross section in an A3-A3 direction in FIG. FIG.
- FIG. 7 is an explanatory view showing a panel structure constituting a pre-chamber of an airbag used in the side airbag device according to the first embodiment of the present invention.
- FIGS. 8A and 8B are explanatory views showing a panel structure constituting a main chamber of an airbag used in the side airbag device according to the first embodiment of the present invention.
- FIG. 9A is a schematic side view of the vehicle seat according to the second embodiment of the present invention, and shows a state in which the airbag is deployed, as viewed from the outside in the vehicle width direction (the opposite side of the occupant).
- FIG. 9 (B) is a front view showing the deployed state of the airbag, as viewed from the front in the traveling direction to the rear.
- FIGS. 10A and 10B are cross-sectional views showing the structure of an airbag device according to a second embodiment of the present invention, where FIG. 10A is the A1-A1 direction of FIG. 9A, and FIG. An A2-A2 direction and (C) correspond to a cross section in an A3-A3 direction in FIG. 9A, respectively.
- FIG. 11 is an explanatory view showing a panel structure constituting a pre-chamber of an airbag used in the side airbag device according to the second embodiment of the present invention.
- FIGS. 12A and 12B are explanatory views showing a panel structure forming a main chamber of an airbag used in a side airbag device according to a second embodiment of the present invention.
- FIGS. 13A and 13B are explanatory views (cross-sectional views) showing the deployed state of the airbag device according to the present invention (first and second embodiments), wherein FIG. Indicates the status.
- a vehicle seat equipped with the side airbag device according to the embodiment of the present invention will be described with reference to the accompanying drawings.
- the direction in which the body of the occupant faces is “front”, and the opposite direction is “rear”. I do.
- the right hand direction of the occupant is defined as “right”, and the left hand direction is defined as “left”.
- the area on the occupant side of the side frame of the seat is defined as “inside”, and the area opposite to the occupant when viewed from the side frame is defined as “outside”.
- FIG. 1 is a perspective view mainly showing an external shape of a vehicle seat according to the present invention, and illustration of an airbag device (20) is omitted.
- FIG. 2 is a perspective view showing an internal structure (seat frame) functioning as a framework of the vehicle seat shown in FIG. 1, and the illustration of the airbag device (20) is also omitted here.
- FIG. 3 is a schematic side view of the vehicle seat according to the present invention, and shows a state in which the airbag device 20 is housed on the side (near side) near the door of the vehicle seat from the outside in the vehicle width direction. Show.
- the present invention is a vehicle seat including a vehicle seat body and a side airbag device (20) housed in the seat.
- the vehicle seat body according to the present embodiment, when viewed as a part, as shown in FIGS. 1 and 2, a seat cushion 2 where a passenger sits; a seat back 1 forming a backrest; and a seat back 1. And a headrest 3 connected to the upper end of the headrest.
- a seat back frame 1f that forms a skeleton of the seat is provided inside the seat back 1, and a pad made of a urethane foam material or the like is provided on the surface and surroundings thereof. Covered by A seat frame 2f is arranged on the bottom side of the seat cushion 2. Pads made of a urethane foam material or the like are provided on the upper surface and the periphery thereof, and the surface of the pad is covered with a skin 14 (FIG. 4) such as leather or fabric. Has been done.
- the seat frame 2f and the seat back frame 1f are connected via a reclining mechanism 4.
- the seat back frame 1 f is connected to a side frame 10 which is arranged to be separated from the left and right and extends in the vertical direction, an upper frame connecting the upper end of the side frame 10, and a lower end.
- the lower frame is formed in a frame shape.
- the headrest 3 is configured by providing a cushion member outside the headrest frame.
- FIG. 4 is a cross-sectional view showing the structure of the vehicle seat according to the present invention, and corresponds to a part of a cross section in the A1-A1 direction of FIG.
- the side frame 10 is formed of resin or metal, and can have an L-shaped cross section or a U-shaped cross section as shown in FIG.
- the side frame 10 includes a frame side wall 10a extending along the vehicle traveling direction when a horizontal cross section is viewed from above.
- the airbag module (side airbag device) 20 is fixed inside the frame side wall 10a (center side of the seat).
- the seat back 1 includes a side support portion 12 bulging in a vehicle traveling direction (vehicle forward direction) at a vehicle width direction side portion (end portion). Inside the side support portion 12, the side airbag device 20 is accommodated in a gap where the urethane pad 16 is not arranged.
- the side airbag device 20 includes an airbag (34, 36) that restrains an occupant by inflating and deploying; and an inflator 30 that supplies inflation gas to the airbag (34, 36).
- the side support portion 12 has a starting region 26 that is a starting point when the side support portion 12 is bent toward the occupant due to the expansion of the pre-chamber 36 (see FIGS. 5 and 6).
- the starting region 26 can be any or a combination of a cut, a concave portion, or a thin region.
- the starting region 26 may be formed only in the urethane 16 portion inside the side support portion 12. In addition, the starting area 26 can be omitted.
- the airbags (34, 36) are covered by a flexible cover 20a made of fabric.
- the airbags (34, 36) may be folded or rolled in a bellows shape ("folding" includes rolling), and an optimum compression method may be appropriately adopted. it can.
- reference numeral 25 indicates a door trim.
- the pre-chamber and the main chamber are integrally folded so as to overlap each other in a flatly spread plane state. For this reason, in the housed state where the airbag is folded, the positional relationship at the time of inflation and deployment can be appropriately maintained.
- the folded pre-chamber portion is located closer to the inflator than the folded main chamber portion, or the folded main chamber portion is And a side frame. That is, the folded pre-chamber may be disposed on the occupant side with respect to the folded main chamber.
- FIG. 5A is a schematic side view of the vehicle seat according to the first embodiment of the present invention, and shows a state in which the airbags (34, 36) are deployed from the outside in the vehicle width direction (the side opposite to the occupant). The state observed is shown.
- FIG. 5B is a front view showing the deployed state of the airbags (34, 36), as viewed from the front of the vehicle.
- 6A and 6B are cross-sectional views showing the structure of the airbag device according to the first embodiment of the present invention, where FIG. 6A is a direction A1-A1 in FIG. 5A, and FIG. An A2-A2 direction and (C) correspond to a cross section in an A3-A3 direction in FIG.
- the airbag (34, 36) includes a main chamber 34 that deploys forward of the side support portion 12; and a pre-chamber 36 that deploys inside the main chamber 34 in the vehicle width direction. .
- the main chamber 34 is divided by the baffle plate 134c into a front chamber 34F having a relatively small capacity located at the front and a rear chamber 34R having a capacity larger than the front chamber 34F located at the rear.
- the front chamber 34F and the rear chamber 34R are in fluid communication by internal vents V34c and V34d formed in the baffle plate 134c, and the inflation gas flows from the rear chamber 34R to the front chamber 34F. It is flowing.
- exhaust vents V34a and V34b for exhausting gas to the outside are provided at the front end of the front chamber 34F.
- the airbag (34, 36) accommodates a main chamber 34 which is deployed toward the front of the side support portion 12 of the seat; And a pre-chamber 36 which starts deployment before the main chamber 34 inside the main chamber 34 in the vehicle width direction.
- the partitioning portion (boundary portion) between the main chamber 34 and the pre-chamber 36 has an internal space where the inflation gas flows from the pre-chamber 36 into the main chamber 34. Vents V1, V2, V3 are provided.
- a tubular rectifying member 200 that surrounds the inflator 30 and regulates the flow of the inflation gas is provided inside the pre-chamber 36.
- the flow of the inflation gas to the pre-chamber 36 can be controlled.
- openings are provided at the upper end and the lower end of the flow regulating member 200 to guide the gas discharged from the inflator 30 in the vertical direction, so that the gas can be quickly supplied to the upper region 36U and the lower region 36L of the pre-chamber 36.
- the pre-chamber 36 is basically developed so as to overlap the frame side wall 10a when viewed from the side of the vehicle. Since the pre-chamber 36 is deployed so as to overlap the frame side wall 10a, the frame side wall 10a receives a reaction force when the pre-chamber 36 is deployed, and the pre-chamber 36 can be reliably deployed toward the center of the sheet. Even after the deployment, the pressure from the occupant can be received by the frame side wall portion 10a, and the occupant can be reliably restrained in the seat center direction. On the other hand, the main chamber 34 is deployed so as not to overlap with the frame side wall when viewed from the side of the vehicle. For this reason, the main chamber 34 can be quickly and smoothly deployed without being hindered by the side frame 10 and the pre-chamber 36.
- the pre-chamber 36 has a shape in which the upper and lower parts protrude forward.
- the pre-chamber 36 can have a U-shape or a C-shape in which the intermediate region is recessed rearward when viewed from the occupant side.
- the upper region of the pre-chamber 36 is located near the head of the occupant, and the head that is likely to cause injury can be quickly restrained.
- the lower region is located near the waist of the occupant, and by pressing the lumbar portion near the center of gravity of the human body, the occupant restraint performance in the initial stage at the time of occurrence of an accident is improved.
- the front end of the pre-chamber 36 is formed so as to substantially coincide with the position of the front end of the main chamber 34.
- the airbag including the main chamber 34 and the pre-chamber 36 has an integrated structure, and the entire deployed shape is stable.
- FIG. 7 is an explanatory view showing a panel structure constituting the pre-chamber 36.
- the pre-chamber 36 can be manufactured by stacking two panels 136a and 136b having the same shape and sewing the periphery.
- one front vent V1a and two rear vents V2a and V3a are formed on an outer panel 136b connected to the main chamber 34.
- the front vent V1a communicates with a front chamber 34F of the main chamber 34 described later, and the rear vents V2a and V3a communicate with the rear chamber 34R.
- S1 and S2 indicate sewing positions with the main chamber 34.
- the sewing S1 has a circular shape so as to surround the front vent V1a.
- the sewing S2 is vertically long so as to surround the rear vents V2a and V3a.
- the region connecting the main chamber 34 and the pre-chamber 36 by sewing may basically be around the front / rear vents V1a, V1b, V1c, and does not have to be wider than necessary.
- FIGS. 8A and 8B are explanatory views showing a panel structure constituting the main chamber 34 of the airbag used in the side airbag device according to the first embodiment of the present invention.
- the main chamber 34 can be manufactured by stacking two panels 134a and 134b having the same shape and sewing the periphery.
- One front vent V1b and two rear vents V2b and V3b are formed on the inner panel 134a connected to the pre-chamber 36.
- These vents V1b, V2b, V3b correspond to the vents V1a, V2a, V3a (see FIG. 7) of the pre-chamber 36, respectively, and are sewn (S1, S2) around the overlapped openings. Vents V1, V2, and V3 (see FIG. 5A) are formed.
- a baffle plate 134c extending in the vertical direction is connected to portions indicated by broken lines of the two panels 136a and 136b.
- the main chamber 34 is divided into a front chamber 34F and a rear chamber 34R.
- the baffle plate 134c is provided with two baffle vents V34c and V34d, through which gas flows from the rear chamber 34R to the front chamber 34F.
- the front vent V1b is located in front of the baffle plate 134c, ie, on the front chamber 34F side, and the rear vents V2b, V3b are located behind the baffle plate 134c, ie, on the rear chamber 34F side.
- the gas from the inflator 30 is promptly supplied to the upper region 36U and the lower region 36L in the pre-chamber 36 at the initial stage of deployment by the tubular rectifying member 200 (see FIGS. 6 and 7).
- the front vent V1 is located in the lower region 36L just near the point where the gas is first supplied.
- the rear vent V3 is located in the upper region 36U just in the vicinity of the point where the gas is first supplied.
- the gas is quickly supplied into the pre-chamber 36 and the deployment of the pre-chamber 36 proceeds, and at the same time, the gas is initially deployed near the shoulder and waist of the occupant, which is a region where the restraint of the main chamber 34 is preferably early. Therefore, there is an advantage that the constraint of the area starts from the initial stage of development.
- reference numeral 202 denotes an opening into which the cylindrical inflator 30 is inserted, and the inflator 30 is arranged to extend in the up-down direction.
- Reference numeral 204 denotes a hole through which the stud bolt 32 for fixing the inflator 30 passes.
- FIG. 9A is a schematic side view of a vehicle seat according to a second embodiment of the present invention, and shows a state in which an airbag (234, 236) is deployed from the outside in the vehicle width direction (the side opposite to the occupant). The state observed is shown.
- FIG. 9B is a front view showing the deployed state of the airbags (234, 236), as viewed from the front in the traveling direction to the rear.
- FIGS. 10A and 10B are cross-sectional views showing the structure of an airbag device according to a second embodiment of the present invention, where FIG. 10A is the A1-A1 direction of FIG. 9A, and FIG. An A2-A2 direction and (C) correspond to a cross section in an A3-A3 direction in FIG. 9A, respectively.
- a main difference between the present embodiment and the above-described first embodiment is the configuration of the main chamber 234 including the shape of the pre-chamber 236 and the shape of the baffle plate 320.
- the pre-chamber 236 employed in the present embodiment has a substantially trapezoidal shape in which the width in the front-rear direction is slightly narrower and the width of the lower end is the widest.
- the shape of the baffle plate 320 is the same as that of the first embodiment in that it separates the front vent V1 from the rear vents V2 and V3.
- the baffle plate 320 is formed with vent holes V234c and V234d that fluidly communicate the front chamber 234F and the rear chamber 234R.
- FIG. 11 is an explanatory view showing a panel structure constituting the pre-chamber 236 of the airbag used in the side airbag device according to the second embodiment of the present invention.
- FIGS. 12A and 12B are explanatory views showing a panel structure constituting a main chamber 234 of an airbag used in the side airbag device according to the second embodiment of the present invention.
- one front vent V1a and two rear vents V2a and V3a are formed on an outer panel 236b connected to the main chamber 234.
- the front vent V1a communicates with a front chamber 234F of a main chamber 234 described later, and the rear vents V2a and V3a communicate with a rear chamber 234R.
- S1 and S2 indicate sewing positions with the main chamber 234.
- the sewing S1 has a circular shape so as to surround the front vent V1a.
- the sewing S2 is vertically long so as to surround the rear vents V2a and V3a.
- the region where the main chamber 234 and the pre-chamber 236 are connected by sewing may basically be around the front / rear vents V1a, V1b, V1c, and may not be set to a wider range than necessary.
- the main chamber 234 can be manufactured by stacking two panels 234a and 234b having the same shape and sewing the periphery.
- One front vent V1b and two rear vents V2b and V3b are formed on the inner panel 234a connected to the pre-chamber 236.
- These vents V1b, V2b, V3b correspond to the vent openings V1a, V2a, V3a (see FIG. 7) of the pre-chamber 236, respectively, and are sewn around the overlapped openings (S1, S2).
- Internal vents V1, V2, and V3 are formed.
- a baffle plate 320 extending in the vertical direction is connected to portions indicated by broken lines of the two panels 236a and 236b.
- the main chamber 234 is divided into a front chamber 234F and a rear chamber 234R.
- the baffle plate 320 is provided with two baffle vents V234c and V234d, through which gas flows from the rear chamber 234R to the front chamber 234F.
- the front vent V1b is located in front of the baffle plate 320, ie, on the front chamber 234F side, and the rear vents V2b, V3b are located behind the baffle plate 320, ie, on the rear chamber 234F side.
- FIGS. 13A and 13B are explanatory views (cross-sectional views) showing the deployed state of the airbag device according to the present invention (first and second embodiments), wherein FIG. Indicates the status.
- the pre-chamber 36 is provided inside the side support portion 12 at an early stage of the operation of the airbag device 20. (236) is unfolded, and while the seat skin 14 is torn from the sewn portion 18, the tip side of the side support portion 12 is deformed so as to bend or project inward from the area 26 as a starting point, thereby pushing the occupant inward in the vehicle width direction. To be restrained.
- the front portion of the side support portion 12 is protruded and deformed toward the occupant, so that generation of a force for pushing the occupant obliquely forward from the back can be avoided or minimized. It is possible to prevent the occupant from moving in the direction in which the seat belt is pulled out. That is, harm to the occupant can be suppressed, and the restraint performance can be maximized.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Air Bags (AREA)
Abstract
Description
また、展開速度の向上や展開挙動、展開形状の安定化による適切な乗員保護性能が要求される。
また、装置のコンパクト化に寄与するサイドエアバッグ装置及びこれを備えた車両用シートを提供することを他の目的とする。
一方、メインチャンバが車両側方から見てフレーム側壁部に重ならないように展開するように構成することができる。この場合、メインチャンバがサイドフレームやプリチャンバによって展開を阻害されることなく、速やか且つスムーズに展開可能となる。
また、サイドサポート部12には、プリチャンバ36(図5、図6参照)の膨張によってサイドサポート部12が乗員側に折れ曲がる際の起点となる起点領域26が形成されている。起点領域26としては、切り込み、凹部又は薄肉領域の何れか又は組み合わせとすることができる。起点領域26は、サイドサポート部12内部のウレタン16部分にのみ形成されていても良い。また、起点領域26を省略することも可能である。
図6は、本発明の第1実施例に係るエアバッグ装置の構造を示す断面図であり、(A)が図5(A)のA1-A1方向、(B)が図5(A)のA2-A2方向、(C)が図5(A)のA3-A3方向の断面に各々対応する。
一方、メインチャンバ34は車両側方から見てフレーム側壁部に重ならないように展開する。このため、メインチャンバ34がサイドフレーム10やプリチャンバ36によって展開を阻害されることなく、速やか且つスムーズに展開可能となる。
Claims (14)
- 膨張ガスを発生するインフレータと、前記膨張ガスによって車両用シートの側部から展開して乗員を保護するエアバッグとを備えたサイドエアバッグ装置において、
前記エアバッグは、車両前方に向かって展開するメインチャンバと;前記インフレータを収容し、前記メインチャンバの車幅方向内側で当該メインチャンバに先行して展開を開始するプリチャンバとを備え、
前記メインチャンバは、区画部によって前方領域と後方領域とに区画され、
前記メインチャンバと前記プリチャンバとの境界部分には、前記膨張ガスを前記プリチャンバから前記メインチャンバの前方領域に導くフロントベントと、前記後方領域に導くリアベントとが設けられていることを特徴とするサイドエアバッグ装置。 - 前記車両の横方向から見て、前記プリチャンバが、前記メインチャンバの前記区画部の少なくとも一部を覆うように設けられることを特徴とする請求項1に記載のサイドエアバッグ装置。
- 前記車両の横方向から見て、前記プリチャンバは、下方において、車両前方に突出していて、前記メインチャンバの前端部分より車両後方側に位置する下方突出部を有する請求項1または2に記載のサイドエアバッグ装置。
- 前記車両の横方向から見て、前記プリチャンバは、上方において、車両前方に突出していて、前記メインチャンバの前端部分より車両後方側に位置する上方突出部を有する請求項1乃至3の何れか1項に記載のサイドエアバッグ装置。
- 前記リアベントは、少なくとも2カ所形成されていることを特徴とする請求項1乃至4の何れか1項に記載のサイドエアバッグ装置。
- 前記リアベントは、前記プリチャンバの高さ方向中間部分よりも上方に形成されていることを特徴とする請求項1乃至5の何れか1項に記載のサイドエアバッグ装置。
- 前記フロントベントは、前記プリチャンバの高さ方向中間部分よりも下方に形成されていることを特徴とする請求項6に記載のサイドエアバッグ装置。
- 前記メインチャンバにおいて、前記前方領域と前記後方領域は、バッフルプレートによって区画されることを特徴とする請求項1乃至7の何れか一項に記載のサイドエアバッグ装置。
- 前記メインチャンバにおいて、前記バッフルプレートには前記前方領域と前記後方領域とに流体連通するバッフルベントが設けられていることを特徴とする請求項8に記載のサイドエアバッグ装置。
- 前記プリチャンバ内部で前記インフレータを包囲し、前記膨張ガスの流れを規制する整流部材を更に備えたことを特徴とする請求項1乃至9の何れか一項に記載のサイドエアバッグ装置。
- 前記整流部材は、前記インフレータから放出された前記膨張ガスを上下方向に導く開口を上端部及び下端部に備えていることを特徴とする請求項10に記載のサイドエアバッグ装置。
- 前記プリチャンバは、車両側方から見て前記フレーム側壁部に重なって展開するように設けられていることを特徴とする請求項1乃至11の何れか一項に記載のサイドエアバッグ装置。
- 前記メインチャンバは、車両側方から見て前記フレーム側壁部に重ならないで展開するように設けられている請求項1乃至12の何れか一項に記載のサイドエアバッグ装置。
- 請求項1乃至13の何れか一項に記載のサイドエアバッグ装置を装備した車両用シート。
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KR1020207037761A KR102535016B1 (ko) | 2018-06-19 | 2019-05-08 | 사이드 에어백 장치 및 이것을 구비한 차량용 시트 |
CN201980041086.3A CN112292290B (zh) | 2018-06-19 | 2019-05-08 | 侧面安全气囊装置以及具备该侧面安全气囊装置的车辆用座椅 |
JP2020525336A JP7008816B2 (ja) | 2018-06-19 | 2019-05-08 | サイドエアバッグ装置及び、これを備えた車両用シート |
EP19823133.4A EP3812221B1 (en) | 2018-06-19 | 2019-05-08 | Side airbag device and vehicle seat provided therewith |
US17/252,325 US11267433B2 (en) | 2018-06-19 | 2019-05-08 | Side airbag device and vehicle seat provided with same |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021166530A1 (ja) * | 2020-02-21 | 2021-08-26 | オートリブ ディベロップメント エービー | サイドエアバッグ装置 |
US20220126779A1 (en) * | 2019-02-09 | 2022-04-28 | Autoliv Development Ab | Side airbag device |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US12030453B2 (en) * | 2019-10-10 | 2024-07-09 | Autoliv Development Ab | Side airbag device and method for manufacturing airbag used in same |
KR20230048915A (ko) * | 2021-10-05 | 2023-04-12 | 현대모비스 주식회사 | 차량용 시트 에어백장치 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0542001U (ja) * | 1991-11-13 | 1993-06-08 | 株式会社東海理化電機製作所 | エアバツグ装置用袋体 |
JP2007176347A (ja) * | 2005-12-28 | 2007-07-12 | Mazda Motor Corp | エアバッグユニットを備えた車両用シート |
JP2008120148A (ja) * | 2006-11-09 | 2008-05-29 | T S Tec Kk | サイドエアバッグ装置を備える車両用シート |
JP2009023494A (ja) | 2007-07-19 | 2009-02-05 | Toyoda Gosei Co Ltd | サイドエアバッグ装置 |
JP2016078507A (ja) * | 2014-10-10 | 2016-05-16 | トヨタ自動車株式会社 | 車両用サイドエアバッグ装置 |
WO2017209192A1 (ja) * | 2016-06-01 | 2017-12-07 | オートリブ ディベロップメント エービー | 乗員保護装置 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3539013B2 (ja) * | 1995-11-29 | 2004-06-14 | アラコ株式会社 | エアバッグ装置付き車両用シート |
DE10225677A1 (de) * | 2001-06-11 | 2003-01-16 | Honda Motor Co Ltd | Insassen-Rückhaltesystem |
FR2902424B1 (fr) | 2006-06-19 | 2008-10-17 | Saint Gobain Ct Recherches | Ciment de jointoiement a spheres creuses pour filtre a particules. |
JP5507336B2 (ja) * | 2010-05-17 | 2014-05-28 | タカタ株式会社 | カーテンエアバッグ及びカーテンエアバッグ装置 |
EP2810831B1 (en) * | 2012-02-01 | 2018-05-09 | Toyota Jidosha Kabushiki Kaisha | Vehicle side airbag device |
JP5942772B2 (ja) * | 2012-10-18 | 2016-06-29 | トヨタ自動車株式会社 | サイドエアバッグ装置を搭載した車両用シート |
JP6102880B2 (ja) * | 2014-10-07 | 2017-03-29 | トヨタ自動車株式会社 | ファーサイドエアバッグ装置 |
EP3321138B1 (en) * | 2015-07-11 | 2021-10-13 | Autoliv Development AB | Vehicle occupant protection device |
JP6561942B2 (ja) * | 2016-08-22 | 2019-08-21 | トヨタ自動車株式会社 | サイドエアバッグ装置を搭載した車両用シート |
KR102257441B1 (ko) * | 2017-03-30 | 2021-05-31 | 아우토리브 디벨롭먼트 아베 | 승객 보호 장치 |
WO2019026538A1 (ja) * | 2017-08-01 | 2019-02-07 | オートリブ ディベロップメント エービー | 乗員保護装置 |
JP6856482B2 (ja) * | 2017-09-20 | 2021-04-07 | トヨタ自動車株式会社 | サイドエアバッグ装置を搭載した車両用シート及びサイドエアバッグ装置 |
KR102206666B1 (ko) * | 2018-01-15 | 2021-01-22 | 오토리브 디벨로프먼트 에이비 | 사이드 에어백 장치 및 이것을 구비한 차량용 시트 |
EP3584122B1 (en) * | 2018-01-26 | 2021-11-17 | Autoliv Development AB | Side airbag device |
EP3744579B1 (en) * | 2018-01-26 | 2024-05-15 | Autoliv Development AB | Side air bag device and vehicle seat with same |
EP3778311B1 (en) * | 2018-04-05 | 2023-08-23 | Autoliv Development AB | Side airbag device and vehicle seat |
CN113423617B (zh) * | 2018-12-21 | 2023-05-02 | 奥托立夫开发公司 | 侧面安全气囊装置及其制造方法、具备该装置的车辆座椅 |
-
2019
- 2019-05-08 KR KR1020207037761A patent/KR102535016B1/ko active IP Right Grant
- 2019-05-08 CN CN201980041086.3A patent/CN112292290B/zh active Active
- 2019-05-08 US US17/252,325 patent/US11267433B2/en active Active
- 2019-05-08 JP JP2020525336A patent/JP7008816B2/ja active Active
- 2019-05-08 EP EP19823133.4A patent/EP3812221B1/en active Active
- 2019-05-08 WO PCT/JP2019/018462 patent/WO2019244493A1/ja unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0542001U (ja) * | 1991-11-13 | 1993-06-08 | 株式会社東海理化電機製作所 | エアバツグ装置用袋体 |
JP2007176347A (ja) * | 2005-12-28 | 2007-07-12 | Mazda Motor Corp | エアバッグユニットを備えた車両用シート |
JP2008120148A (ja) * | 2006-11-09 | 2008-05-29 | T S Tec Kk | サイドエアバッグ装置を備える車両用シート |
JP2009023494A (ja) | 2007-07-19 | 2009-02-05 | Toyoda Gosei Co Ltd | サイドエアバッグ装置 |
JP2016078507A (ja) * | 2014-10-10 | 2016-05-16 | トヨタ自動車株式会社 | 車両用サイドエアバッグ装置 |
WO2017209192A1 (ja) * | 2016-06-01 | 2017-12-07 | オートリブ ディベロップメント エービー | 乗員保護装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3812221A4 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220126779A1 (en) * | 2019-02-09 | 2022-04-28 | Autoliv Development Ab | Side airbag device |
US11752966B2 (en) * | 2019-02-09 | 2023-09-12 | Autoliv Development Ab | Side airbag device |
WO2021166530A1 (ja) * | 2020-02-21 | 2021-08-26 | オートリブ ディベロップメント エービー | サイドエアバッグ装置 |
CN115052785A (zh) * | 2020-02-21 | 2022-09-13 | 奥托立夫开发公司 | 侧面安全气囊装置 |
CN115052785B (zh) * | 2020-02-21 | 2023-11-10 | 奥托立夫开发公司 | 侧面安全气囊装置 |
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KR102535016B1 (ko) | 2023-05-23 |
EP3812221A4 (en) | 2021-11-17 |
US20210261086A1 (en) | 2021-08-26 |
JPWO2019244493A1 (ja) | 2021-05-13 |
CN112292290A (zh) | 2021-01-29 |
KR20210018864A (ko) | 2021-02-18 |
EP3812221A1 (en) | 2021-04-28 |
EP3812221B1 (en) | 2023-04-12 |
JP7008816B2 (ja) | 2022-01-25 |
US11267433B2 (en) | 2022-03-08 |
CN112292290B (zh) | 2023-01-24 |
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