WO2019073826A1 - Dispositif de coussin de sécurité gonflable latéral - Google Patents

Dispositif de coussin de sécurité gonflable latéral Download PDF

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Publication number
WO2019073826A1
WO2019073826A1 PCT/JP2018/036350 JP2018036350W WO2019073826A1 WO 2019073826 A1 WO2019073826 A1 WO 2019073826A1 JP 2018036350 W JP2018036350 W JP 2018036350W WO 2019073826 A1 WO2019073826 A1 WO 2019073826A1
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WO
WIPO (PCT)
Prior art keywords
bag
main
sub
main bag
inner bag
Prior art date
Application number
PCT/JP2018/036350
Other languages
English (en)
Japanese (ja)
Inventor
寛之 河野
一樹 上野
Original Assignee
オートリブ ディベロップメント エービー
寛之 河野
一樹 上野
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by オートリブ ディベロップメント エービー, 寛之 河野, 一樹 上野 filed Critical オートリブ ディベロップメント エービー
Priority to JP2019548126A priority Critical patent/JP6854358B2/ja
Publication of WO2019073826A1 publication Critical patent/WO2019073826A1/fr

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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
    • 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

Definitions

  • the present invention relates to a side airbag device that restrains a vehicle occupant from the side.
  • the airbag device is a safety device that operates in an emergency such as a vehicle collision, and inflates and deploys an airbag cushion with gas pressure to receive and protect an occupant.
  • a front airbag device is provided at the center of the steering.
  • a curtain airbag device is provided near the ceiling above the side window, and a side airbag device is provided on the side of the seat, in order to protect the occupant from an impact in the vehicle width direction due to a side collision or the like. It is done.
  • the first sub-chamber 5 is provided at the upper portion on the occupant side of the main chamber 4 for the purpose of protecting the occupant after moving the upper arm of the occupant upward.
  • the second sub-chamber 6 is provided on the upper side of the second sub-chamber 6.
  • An object of this invention is to provide the side airbag apparatus which can aim at coexistence with the early restraint of a passenger
  • a typical configuration of a side airbag device is a side airbag device that restrains an occupant of a vehicle from the side.
  • Main bag an inner bag in the form of a bag independent of the main bag and provided inside the main bag, an inflator provided inside the inner bag for supplying gas, and the main bag
  • the main bag includes a protruding and expanding sub-chamber, a main vent for transferring the gas from the inner bag to the main bag, and a sub-vent for transferring the gas directly from the inner bag to the sub-chamber.
  • the inner bag and the sub-vent have a close contact area, and the sub vent is provided in the close contact area. Characterized in that connects the internal space between the Yanba directly.
  • the sub-chamber and the main bag being arranged in the vehicle width direction, the thickness of the air bag cushion is increased in the vehicle width direction, and higher energy absorbing performance can be exhibited. Therefore, for example, the sub-chamber can be provided only at a portion corresponding to the chest of the occupant to fully restrain the chest. On the other hand, the vicinity of the abdomen other than the chest and the like can be restrained not by the sub-chamber but by the main bag as in the conventional case, whereby the load can be reduced and the damage can be reduced.
  • the above inner bag may be provided on the vehicle rear side inside the main bag so that a part thereof overlaps the sub chamber when viewed from the side of the vehicle. This configuration allows direct gas delivery from the inner bag to the subchamber.
  • the close contact area between the inner bag and the main bag may be formed by sewing around the sub vent. According to this configuration, it is possible to preferably realize an area in which the inner bag and the main bag are in close contact and a sub vent for directly sending a gas from the inner bag to the sub chamber.
  • the above sub chamber is provided at a height corresponding to the chest on the occupant side of the main bag, and the close contact area of the inner bag and the main bag is provided at a height corresponding to the chest on the occupant side Good.
  • This configuration makes it possible to preferably realize a sub-chamber that restrains the occupant's chest.
  • the sub-chamber described above has a smaller volume than the main bag, and may be completed earlier in inflation and deployment than the main bag. This configuration enables early restraint of the occupant's chest.
  • the sub-chamber includes a first panel joined to the main bag along the upper edge of the main bag, and a second panel joined from the lower end of the first panel to the middle of the main bag. Should be included. This configuration makes it possible to preferably realize the sub-chamber.
  • a part of the base cloth arranged in a bag shape inside the main bag is overlapped on the outer peripheral part of the main bag on the vehicle rear side, and a part of the base cloth is sewn together with the outer part of the main bag You should be in the This configuration makes it possible to preferably realize the inner bag.
  • the above main vent may be provided on the front side of the inner bag. This configuration makes it possible to inflate and deploy the main bag efficiently through the main vent.
  • P1 Passenger, E1: Chest, E2: Abdomen, 100: Side air bag device, 102: Seat, 104: Seat back, 106: Cushion, 108: Inflator, 110: Outer panel, 112: Vent hole, 114: Main bag, 116 sub-chamber 118 upper edge of main bag 120 first panel 122 second panel 124 lower end of first panel 126 middle of main bag 128 inner bag 130 bolt hole 132: main vent, 134: sub vent, 136: outer peripheral portion of main bag, 138: close contact area of main bag and inner bag, 140: sewing around sub vent
  • FIG. 1 is a view exemplifying a side airbag device 100 according to an embodiment of the present invention.
  • the side airbag device 100 and the seat 102 to which the side airbag device 100 is applied are illustrated from the left side in the vehicle width direction.
  • the vertical direction of the vehicle is illustrated by arrows U (up) and D (down), respectively.
  • the side airbag device 100 is installed on the outside or inside of the seat back 104 of the seat 102.
  • the side airbag device 100 includes an airbag cushion (cushion 106) for restraining the occupant P1, and an inflator 108 for supplying a gas for inflation and deployment to the cushion 106.
  • the occupant P1 is illustrated as a dummy doll used for a collision test of a vehicle and the like.
  • a dummy dummy AM 50 50th percentile male equivalent height: 175 cm, weight: 78 kg simulating a physical constitution matching 50% of an average American adult male It is possible to use.
  • the technical idea of the side air bag apparatus 100 can be implemented without problems for other dummy dolls, occupants of other physiques, and the like as well as the AM 50.
  • the cushion 106 inflates and deploys in a generally flat shape on the side of the seating position of the occupant P1, and restrains the occupant P1 from the side.
  • the outer surface of the cushion 106 is composed of an outer panel 110 made of a base fabric.
  • the outer panel 110 is entirely formed in a bag shape by sewing, bonding or the like.
  • a predetermined vent hole 112 is provided on the vehicle front side of the cushion 106, and the gas after expansion and deployment is discharged from the vent hole 112.
  • the cushion 106 before inflation and deployment is wound or folded prior to operation, and is housed in a housing or the like incorporated in the seat back 104. Since the seat cover or the like covers the cushion 106 in the stored state, the cushion 106 is not visible from the outside.
  • the inflator 108 is a gas generator, and in the embodiment, a cylindrical (cylindrical) one is employed.
  • the inflator 108 is contained in the cushion 106 in a direction that is longitudinally elongated along the seat back 104.
  • the inflator 108 is provided with several stud bolts (not shown), which penetrate the base cloth of the cushion 106 and are fastened to the frame of the seat back 104 or the like.
  • the inflator 108 is electrically connected to the vehicle side, operates in response to a signal resulting from the detection of an impact from the vehicle side, and supplies gas to the cushion 106.
  • inflators are of the type that is filled with a gas generating agent and burned to generate gas, the type that is filled with compressed gas and that supplies gas without generating heat, or combustion There is a hybrid type that uses both gas and compressed gas. Any type of inflator 108 can be used.
  • FIG. 1B is a view showing the cushion 106 of FIG. 1A viewed from the front of the vehicle.
  • the sub-chamber 116 is configured to be inflated.
  • the main bag 114 is a main inflation area of the cushion 106 formed in a bag shape by the outer panel 110, in a range where the occupant P1 in front of the vehicle from the seat back 104 (see FIG. 1A) exists. Inflate and deploy to restrain the chest E1 and abdomen E2 of the occupant P1.
  • the sub chamber 116 is provided at a height corresponding to the chest E1 on the occupant side of the main bag 114, and protrudes from the main bag 114 toward the occupant P1 and expands to restrain the chest E1.
  • FIG. 2 is a view alone illustrating the airbag cushion (cushion 106) of FIG. 1 (b).
  • FIG. 2A is an enlarged view of the cushion 106 from the front side of the vehicle.
  • the sub chamber 116 protrudes from a top of the side surface of the occupant P1 side (see FIG. 1B) of the main bag 114 in a slightly rounded shape and is expanded.
  • the sub-chamber 116 is configured to include the upper first panel 120 and the lower second panel 122.
  • the first panel 120 is joined to the main bag 114 along the upper edge 118 of the main bag 114.
  • the second panel 122 extends from the lower end 124 of the first panel 120 to the middle flank 126 of the main bag 114 and is joined to the middle flank 126.
  • FIG. 2B is a view illustrating the cushion 106 of FIG. 1B from the occupant P1 side in the vehicle width direction.
  • FIG. 2 (b) the inside of the main bag 114 is partially illustrated by being transmitted through.
  • An inner bag 128 is provided inside the main bag 114.
  • the inner bag 128 is a bag-like portion independent of the main bag 114, and surrounds the inflator 108 on the vehicle rear side inside the main bag 114.
  • the bolt holes 130 illustrated in FIG. 2B are holes through which stud bolts (not shown) of the inflator 108 pass, and penetrate the inner bag 128 and the main bag 114.
  • the inner bag 128 receives the gas from the inflator 108 first and distributes the gas to the main bag 114 and the sub-chamber 116.
  • the inner bag 128 is provided such that a portion of the upper side overlaps the sub chamber 116 when viewed from the side of the vehicle.
  • the inner bag 128 is provided with a main vent 132 and a sub vent 134 as a site for sending the gas to another site.
  • a plurality of main vents 132 are provided on the vehicle front side of the inner bag 128, and efficiently inflate and deploy the main bag 114 by sending gas from the inner bag 128 to the main bag 114 to the front of the vehicle.
  • the sub vent 134 is provided in a region overlapping the sub chamber 116 at the top of the occupant P1 side (see FIG. 1B) of the inner bag 128, and sends gas from the inner bag 128 to the sub chamber 116 in the vehicle width direction.
  • FIG. 3 is a cross-sectional view of the cushion 106 of FIG. 2 (b).
  • FIG. 3A is a cross-sectional view of the cushion 106 of FIG. 2B taken along the line AA.
  • the inner bag 128 is formed, for example, by folding the base fabric and arranging it in a bag shape, and partially overlapping the bag-like base fabric on the outer peripheral portion 136 of the main bag 114 and sewing it together. There is. According to this configuration, since the back of the end portion on the vehicle rear side of the inner bag 128 is suppressed when the inner bag 128 is deployed, the behavior of the deployment can be stabilized.
  • a part of the area on the vehicle rear side of the cushion 106 in which the inner bag 128 is contained is inflated and deployed inside the seat back 104 (see FIG. 1A). Since the inner bag 128 is rapidly brought into a high pressure state immediately after the operation of the inflator 108, the skin of the seat back 104 can be rapidly cleaved, and the expansive deployment of the entire cushion 106 can also be accelerated.
  • FIG. 3B is a cross-sectional view of the cushion 106 of FIG. 2B taken along the line BB.
  • the first panel 120 of the subchamber 116 is joined along with the main bag 114 along the upper edge 118 of the main bag 114.
  • the second panel 122 is joined to the lower end 124 of the first panel 120 and the middle flank 126 of the main bag 114.
  • the amount of protrusion of the subchamber 116 from the main bag 114 can be adjusted only by changing the size of the second panel 122.
  • FIG. 3 (c) is a schematic configuration diagram around the sub-chamber 116 of FIG. 3 (b).
  • the inner bag 128 and the main bag 114 are joined and adhered by sewing or the like (area 138).
  • the sub chamber 116 can receive gas directly from the inner bag 128 through the sub vent 134.
  • the sub vent 134 is provided in the area 138 where the inner bag 128 and the main bag 114 are in close contact.
  • An area 138 is an area in which the base cloths of the inner bag 128 and the main bag 114 are joined and brought into close contact with each other at a height corresponding to the chest E1 on the occupant P1 side.
  • the region 138 is formed as a region of a predetermined area surrounded by the linear stitch 140 around the sub-vent 134.
  • the region 138 can be formed not only by sewing but also by adhesion or welding.
  • the sub vents 134 are provided in the close contact area 138 so that the inner spaces of the inner bag 128 and the sub chamber 116 can be directly connected to each other.
  • the gas from the inflator 108 can be first received by the inner bag 128 and supplied from there to the main bag 114 and the sub-chamber 116 together. That is, it is possible to supply gas to the sub-chamber 116 as well as the main bag 114 immediately after the operation of the inflator 108.
  • the subchamber 116 can be inflated and deployed early, and the chest E1 of the occupant P1 can be quickly and completely restrained.
  • the sub-chamber 116 and the main bag 114 are aligned in the vehicle width direction, so that the airbag cushion 106 has a thickness in the vehicle width direction only in the vicinity of the chest E1 of the occupant P1. It has become possible to achieve higher energy absorption performance.
  • the main bag 114 is configured to restrain the abdomen E2 in the same manner as in the prior art, and excessive improvement of the rigidity is not achieved. There is.
  • the subchamber 116 supplies gas together with the main bag 114 from the inner bag 128, but has a smaller volume than the main bag 114. Therefore, the subchamber 116 completes the inflation and deployment earlier than the main bag 114. This configuration also enables early restraint of the chest E1 of the occupant P1.
  • FIG. 4 is a diagram illustrating test results of the side airbag device 100 (see FIG. 1A) according to the present embodiment.
  • the test was conducted by colliding a truck at a predetermined speed with a test vehicle having a dummy mounted on a seat as a side collision, and measuring displacement (mm) and load (N) with sensors at various locations of the dummy.
  • the test was performed on the cushion 106 provided with the sub-chamber 116 of the present embodiment and the conventional cushion without the sub-chamber 116 as a comparative example.
  • FIG. 4 (a) is the measurement result on the chest.
  • the horizontal axis is the displacement of the chest, and the time of stopping is zero.
  • the vertical axis is the load. From FIG. 4A, it can be confirmed that the load is beginning to occur earlier in the initial state of displacement in the present embodiment. In addition, it can be confirmed that the load in the present embodiment is larger overall. From this, it can be seen that, in the present embodiment, by providing the subchamber 116 (see FIG. 1B), the initial restraint of the occupant's chest can be achieved and the energy absorption efficiency of the chest is also improved.
  • FIG.4 (b) is a measurement result in the abdomen. From FIG. 4 (b), it can be confirmed that almost the same degree of load is generated between the present embodiment and the comparative example in the state of initial displacement. As the displacement progresses, the load in the present embodiment increases slightly, but when viewed from the whole, no significant difference is seen. From this, it can be understood that, in the present embodiment, even if the sub-chamber 116 (see FIG. 1B) is provided, the load on the abdomen is not so different from the conventional load, and the damage on the abdomen is suppressed.
  • the cushion 106 of the present embodiment described above it is possible to achieve both the early restraint of the occupant P1 and the reduction of the harmfulness. According to this embodiment, even if the collision speed is high, it is possible to early restrain the relatively strong chest E1 and absorb energy efficiently while suppressing the damage to the abdomen E2.
  • the air bag apparatus according to the present invention is applied to a car.
  • the air bag apparatus according to the present invention can be applied to an aircraft, a ship, etc. it can.
  • the present invention can be used for a side airbag device that restrains a vehicle occupant from the side.

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

Abstract

La présente invention vise à procurer un dispositif de coussin de sécurité gonflable latéral apte à produire simultanément à la fois un maintien précoce d'un occupant et une réduction du risque de blessure. A cet effet, l'invention porte sur un dispositif de coussin de sécurité gonflable latéral (100), lequel dispositif comporte : un sac principal (114) qui se gonfle et qui se déploie vers le côté d'un occupant (P1); un sac interne (128) disposé à l'intérieur du sac principal (114); un gonfleur (108) disposé à l'intérieur du sac interne (128); une sous-chambre (116) qui fait saillie à partir du sac principal (114) et qui se gonfle; une évacuation principale (132) qui envoie du gaz à partir du sac interne (128) jusqu'au sac principal (114); et une sous-évacuation (134) qui envoie du gaz directement à partir du sac interne (128) jusqu'à la sous-chambre (116). Le sac interne (128) et le sac principal (114) ont une région (138) dans laquelle les tissus de base de ceux-ci sont en contact étroit entre eux, et, par la disposition de la sous-évacuation (134) dans la région (138), des espaces internes dans le sac interne (128) et la sous-chambre (116) sont directement reliés entre eux.
PCT/JP2018/036350 2017-10-13 2018-09-28 Dispositif de coussin de sécurité gonflable latéral WO2019073826A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2019548126A JP6854358B2 (ja) 2017-10-13 2018-09-28 サイドエアバッグ装置

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Application Number Priority Date Filing Date Title
JP2017199043 2017-10-13
JP2017-199043 2017-10-13

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WO2019073826A1 true WO2019073826A1 (fr) 2019-04-18

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PCT/JP2018/036350 WO2019073826A1 (fr) 2017-10-13 2018-09-28 Dispositif de coussin de sécurité gonflable latéral

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022030318A (ja) * 2020-08-06 2022-02-18 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
US11292419B2 (en) * 2019-12-31 2022-04-05 Joyson Safety System Acquisition LLC Airbag module

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013252773A (ja) * 2012-06-06 2013-12-19 Toyota Motor Corp 車両用サイドエアバッグ装置
JP2016068789A (ja) * 2014-09-30 2016-05-09 三菱自動車工業株式会社 サイドエアバッグ装置
JP2017013664A (ja) * 2015-07-02 2017-01-19 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

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013252773A (ja) * 2012-06-06 2013-12-19 Toyota Motor Corp 車両用サイドエアバッグ装置
JP2016068789A (ja) * 2014-09-30 2016-05-09 三菱自動車工業株式会社 サイドエアバッグ装置
JP2017013664A (ja) * 2015-07-02 2017-01-19 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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11292419B2 (en) * 2019-12-31 2022-04-05 Joyson Safety System Acquisition LLC Airbag module
JP2022030318A (ja) * 2020-08-06 2022-02-18 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
JP7314107B2 (ja) 2020-08-06 2023-07-25 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

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Publication number Publication date
JPWO2019073826A1 (ja) 2020-09-24
JP6854358B2 (ja) 2021-04-07

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