WO2011136298A1 - 助手席用エアバッグ装置のクッションの製造方法 - Google Patents
助手席用エアバッグ装置のクッションの製造方法 Download PDFInfo
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- WO2011136298A1 WO2011136298A1 PCT/JP2011/060318 JP2011060318W WO2011136298A1 WO 2011136298 A1 WO2011136298 A1 WO 2011136298A1 JP 2011060318 W JP2011060318 W JP 2011060318W WO 2011136298 A1 WO2011136298 A1 WO 2011136298A1
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- WIPO (PCT)
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- cushion
- airbag device
- panel
- manufacturing
- passenger seat
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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
- B60R21/23—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
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/205—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in dashboards
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/2334—Expansion control features
- B60R21/2338—Tethers
-
- 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
- B60R21/235—Inflatable members characterised by their material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/2334—Expansion control features
- B60R21/2338—Tethers
- B60R2021/23382—Internal tether means
Definitions
- the present invention relates to a method of manufacturing a cushion of an airbag device, and more particularly to a method of manufacturing a cushion of a passenger seat airbag device.
- the airbag device for the passenger seat is stored in the instrument panel of the vehicle, and when the vehicle suddenly stops due to a collision or the like, the gas is supplied from the inflator attached to the airbag device and set on the top surface of the instrument panel. Protect the passenger in the passenger seat by expanding and deploying between the windshield (front window) and the passenger in the passenger seat from the unfolded door.
- the passenger seat airbag device stabilizes its behavior by contacting the windshield and the upper surface of the instrument panel during inflation and deployment.
- the behavior of the cushion (bag) of the airbag device becomes unstable. Become.
- it is necessary to increase the capacity of the cushion so as to fill the space between the occupant and the windshield of the vehicle body and the instrument panel so that the occupant can be reliably received. Therefore, the cushion of the airbag device for the passenger seat tends to have a large capacity.
- FIG. 7 shows an example of such a passenger seat airbag device.
- the cushion 100 of the airbag device for a passenger seat has an occupant facing surface 102 on the front end side and a windshield facing surface 104 on the upper side, and the occupant facing surface 102 and the windshield facing surface 104 are internal.
- the members 106 are connected to each other by members 106.
- the inflator 112 performs gas ejection operation
- the occupant facing surface 102 expands so as to approach the occupant due to the gas pressure, and the middle portion of the windshield facing surface 104 in the vertical direction passes through the internal member 106 Then, it is pulled by the occupant facing surface 102 and developed into a recessed shape inside the cushion so as to be separated from the windshield 122. As a result, the capacity of the cushion 100 is reduced.
- the cushion serves as an occupant protection unit capable of interfering with an occupant seated in the passenger seat.
- a configuration comprising a first inflating portion and a second inflating portion that is inflated by an inflating gas flowing from the first inflating portion between the first inflating portion and the instrument panel when the first inflating portion is inflated. It is known (see Patent Document 2).
- the cushion 100 of the airbag device described in Patent Document 1 has a reduced capacity on the windshield side, the behavior of the cushion 100 during deployment may be difficult to stabilize, and the internal member 106 is required separately, and it is necessary to attach it to the occupant facing surface 102 and the windshield facing surface 104, which requires a lot of time and effort. Therefore, the cost is lower than a cushion that is simply created by joining the base fabric. There is also a problem that it takes. Further, the structure of the airbag device for the passenger seat described in Patent Document 2 is more complicated than that described in Patent Document 1 and is not only costly but also the capacity of the cushion of the airbag device. It is not always possible to reduce
- the cushion 10 that has started inflating and deploying from the upper surface of the instrument panel 20 has a gap between the instrument panel 20 and the windshield 25. Without filling up, it expands on the passenger side along the upper surface of the instrument panel 20 (FIGS. 8A to 8D).
- the cushion 10 is once lowered to the position on the front side of the instrument panel 20 in the process of inflating and deploying thereafter (see FIG. 8E). (See FIG. 8F). Therefore, the behavior of the cushion 10 is unstable, and the support position of the cushion 10 when the occupant enters the cushion 10 is not stable and may not be supported sufficiently.
- the present applicant is composed of a strip-shaped main panel provided with an occupant facing surface and left and right side panels joined to the side edges of the main panel, and provided with a protrusion on the back side as seen from the cushion occupant.
- a passenger airbag system Even if the cushion of the passenger airbag device is reduced by supporting the protrusion of the passenger airbag device on the front of the instrument panel when the cushion is inflated and deployed, the behavior is not affected. Stabilize.
- the end portions of the main panel are stitched together, and in that state, the side edges of the side panel are overlapped and stitched. If the base fabric is misaligned during stitching, it cannot be absorbed. Therefore, a wave-like swell is generated in the stitched portion. Problems such as breakage occur.
- the main panel and the side panel constituting the side panel are likely to be displaced.
- the protrusion has a larger curvature than the other parts. Since it is necessary to form in a small shape, for example, the protrusion cannot be formed by the above sewing method.
- the present invention has been made to solve this problem, and the object thereof is to provide a cushion with an arbitrary curvature by applying a novel stitching method capable of absorbing the deviation between the base fabrics.
- a passenger-side airbag device that reduces the capacity of the cushion of the airbag device for the passenger's seat, has a stable behavior during inflation and deployment, and has sufficient shock absorption performance. Is to realize.
- the method of manufacturing the cushion of the airbag device for a passenger seat according to the present invention includes an assistant having a shape portion having an arbitrary curvature by stitching side edges of each base fabric constituting the main panel and the left and right side panels.
- a manufacturing method for manufacturing a cushion for a seat airbag apparatus wherein the width of the side panel in each of the main panel and the side panel at the sewing start or sewing end portion is set to a short side.
- a step of forming a shape part of curvature is
- the method for manufacturing a cushion for a passenger airbag device according to the present invention is the method for manufacturing a cushion for a passenger airbag device described in (1) above, wherein the cushion is an instrument panel in a deployed and inflated state. It is provided with the protrusion used as a support means at the time of a passenger
- the method for manufacturing a cushion for a passenger airbag device according to the present invention is the method for manufacturing a cushion for a passenger airbag device described in (1) above, wherein the cushion is in a deployed and inflated state with a windshield. A shape corresponding to the gap filling the gap between the upper surfaces of the instrument panels is provided, and the shape portion having the arbitrary curvature is a shape portion corresponding to the gap.
- the main panel and both side panels can be sewn in accordance with a novel stitching procedure, whereby a portion having an arbitrary curvature can be formed in the cushion.
- a protruding part By forming the protruding part, it has a small capacity compared to the cushion of the conventional general passenger seat airbag device, and regardless of the design of the instrument panel and the layout in the car Thus, a passenger seat airbag device capable of stable inflating and deploying can be realized.
- FIG. 1 is a perspective view of the passenger airbag device when the cushion 10 is inflated.
- FIG. 2 is a side view of the cushion 10 when inflated, and shows a state before an occupant enters.
- the cushion 10 of the passenger airbag device 1 includes a main panel 12 and both side panels 14, that is, three-pieces.
- the side panels 14 are attached to both side edges of the main panel 12 and integrated. Consists of composition.
- the main panel 12 is provided with an opening 15 for attaching an inflator.
- the cushion 10 has a mounting portion 10 a of the inflator 30 and a protrusion 10 b that contacts the side surface of the instrument panel 20 on the instrument panel 20 side (hereinafter, simply referred to as a back surface side) when viewed from the passenger side.
- a recess that is, a recess 10c is formed adjacent to the projection 10b between the mounting portion 10a and the projection 10b, and a recess 10d is provided on the lower side adjacent to the projection 10b.
- the other side of the recess 10d is connected to the occupant side, that is, the surface side, and the occupant-facing surface is a smooth surface that reduces the impact when the occupant enters.
- the side panel 14 is cut into a shape corresponding to the protrusion 10b and the recesses 10c and 10d in order to realize the back surface shape of the cushion 10 of the passenger airbag device 1.
- the cushion 10 is formed by joining the left and right side panels 14 cut into the above shape to both side edges of the main panel 12 by, for example, stitching together.
- the protrusion 10b of the cushion 10 is a shape part of an arbitrary curvature different from the other part of the cushion 10 (here, a part formed with an extremely small curvature compared to the other part),
- the front end of the cushion 10 abuts against the front surface 22 of the instrument panel 20 when the cushion 10 is inflated and deployed, and constitutes a support portion of the cushion 10 that receives the occupant when the occupant enters.
- FIG. 3 is a side view showing a state where the occupant enters the cushion 10 and shows the force acting when the occupant enters, disassembled.
- the cushion 10 expands outward while being expanded by a gas jet on the instrument panel 20 as shown in FIG. 5 described later.
- the cushion 10 is deployed outward from the upper surface of the instrument panel 20, the cushion 10 is deployed so as to turn downward under the influence of the weight of the cushion 10, and the protrusion 10 b comes into contact with the front surface 22 of the instrument panel 20.
- the second depression 10d suppresses the downward expansion of the cushion 10, and the protrusion 10b is maintained in contact with the front surface 22 of the instrument panel 20 by the gas pressure from the inflator. Therefore, the position of the cushion 10 at the time of inflating and deploying can be stabilized.
- F1 to F3 in FIG. 3 indicate the relationship of forces acting on the cushion 10 when the occupant enters the cushion 10 in the expanded and deployed state as described above. That is, F1 represents a vector (magnitude and direction) of a force acting on the cushion 10 when the occupant's head enters the cushion 10. F2 represents a gravity vector acting on the cushion 10. F3 represents the vector of the resultant force of both vectors F1 and F2, that is, the direction and magnitude of the force actually acting on the cushion 10 when the occupant enters the inflated and deployed cushion 10.
- the protrusion 10b is preferably provided so as to extend in the direction of the vector F3 in consideration of the force vector F3.
- the portion other than the acting portion of the vector F3 on the back side of the cushion 10 that is, the portion other than the projection 10b, transmits force. Since it is clear that it is not involved, it is not necessary for the portion to be in contact with the instrument panel 20, and it can be seen that the capacity of the portion can be reduced. Therefore, in the airbag device for the passenger seat, the depression 10b of the cushion 10 is brought into contact with the surface of the instrument panel 20, and a portion other than the projection 10b is cut inward as much as possible to form a recess. Thus, the capacity of the cushion 10 is reduced while stabilizing the behavior of the airbag device during inflation and deployment.
- the passenger airbag device 1 can reduce the output of the inflator relatively with the reduction in the capacity of the cushion 10 as described above, and the side panel 14 of the cushion 10 can be reduced.
- the area can also be made relatively small. Thereby, the cost can be reduced. Further, since the capacity of the cushion 10 is reduced on the back surface side and the bottom surface side, there is no possibility that the support by the windshield 25 becomes insufficient and the behavior at the time of inflation and deployment becomes unstable.
- the extending direction of the protrusion 10b of the cushion 10 is set to match the direction of the vector F3 when the occupant enters the cushion 10, but the occupant actually has the cushion of the airbag device 1 for the passenger seat. Since the position of entering 10 can vary depending on the height and posture of the occupant, the direction of the vector F3 needs to be set with a certain width (allowable range). The actual width required can be determined based on the experimental results of the assumed height and posture of the occupant. In practice, the width of the projection 10b is predetermined within the numerical range obtained from the experimental results. The value multiplied by the safety factor is adopted.
- FIGS. 4D and 4E are schematic views for explaining the behavior of the cushion 10 of the passenger seat airbag device 1 during inflation and deployment.
- the cushion 10 starts to inflate and deploy from a set position on the upper surface of the instrument panel 20 and expands upward and rightward in the figure while being regulated between the windshield 25 and the upper surface of the instrument panel 20 (FIG. 4A-4C).
- the protrusion 10b descends while coming into contact with the front surface of the instrument panel 20 (see FIGS. 4D and 4E) and is stabilized at that position ( FIG. 4F).
- FIG. 4F As is apparent from the comparison between the cushion 10 and the cushion 10 with a reduced capacity without the protrusion 10b shown in FIG.
- the cushion 10 is provided with the protrusion 10b on the back surface thereof.
- the protrusion 10b When deployed outward from the panel 20, the protrusion 10b is deployed downward and abuts against the front surface 22 of the instrument panel 20, and the cushion 10 does not rise up and leave the instrument panel surface as shown in FIG. .
- the protrusion 10b is formed without using a member other than the conventional base cloth.
- the side panel 14 cut with an arbitrary curvature may be simply joined along the edge of the main panel 12 by stitching or the like, so that the manufacturing cost can be reduced.
- the cushion 10 deploys outward as described above and deploys downward when removed from the upper surface of the instrument panel 20, and is a relatively early stage of deployment. Since the tip of the protrusion 10b contacts the surface of the instrument panel 20 and maintains the state, the behavior during deployment can be stabilized.
- FIG. 5 is a side view when the cushion 10 of the second passenger airbag device 1 is inflated and deployed.
- the cushion 10 abuts on the windshield 25 when inflated and is in contact with the windshield 25 and the upper surface of the instrument panel 20 to stabilize its behavior, but the cushion 10 has a space between the windshield 25 and the upper surface of the instrument panel 20.
- the shape of the portion to be deployed is formed in a shape corresponding to the shape of the gap between the two, and other shapes are the same as those of the first passenger seat airbag device 1.
- the capacity of the cushion 10 of the second passenger seat airbag apparatus 1 can be further reduced. That is, since the portion between the windshield 25 of the cushion 10 and the upper surface of the instrument panel 20 is formed in a shape corresponding to the shape of the gap between the two, the portion that becomes redundant between the two portions is the occupant. It does not bulge out to the side. Therefore, an inflator output with a smaller capacity is sufficient, and the side panel 14 can be made smaller. Therefore, further cost reduction is possible.
- the passenger seat airbag device to be manufactured is as described above, and includes the main panel 12 and the left and right side panels 14.
- FIGS. 6A to 6D are diagrams showing a procedure for explaining a sewing procedure according to the embodiment of the present invention.
- FIG. 6C is an enlarged view of a main part (portion of rectangle S) in FIG. 6B.
- the main panel 12 and the side panel 14 cut into a shape having a straight portion 14a at the tip of the main panel 12 and a portion having a small curvature, such as the protrusion, are stitched along the edges of each other (See FIGS. 6A and 6B).
- the end portions of the main panel 12 and the sewing start and sewing end of the main panel 12 and the side panel 14 are overlapped so as not to be sewn.
- the ends of the main panel 12 are not constrained to each other at the start and end of sewing, and the rectangle S having the short side as the straight portion 14a and the long side as the width of the main panel 12 is formed as an unsewn portion. (See FIG. 6C).
- the short side of the left-side rectangle S that is, the straight portion 14a side of the side panel 14 is folded into a V shape inside the rectangle and closed (see FIG. 6D), and the closed portion is sewn and joined. (See FIG. 6E).
- the rectangular short side (the straight portion 14a side) of the unsewn portion is inward as described above.
- a shape portion having a small curvature such as the protrusion 10b of the cushion 10 or a portion between the windshield 25 and the upper surface of the instrument panel 20 without considering the radius of curvature.
- a plurality of deformed portions can be formed on the main panel 12.
- the main panel 12 is composed of a plurality of panels.
- SYMBOLS 1 Airbag apparatus for passenger seats, 10 ... Cushion, 10b ... Projection, 10c, 10d ... Recess, 12 ... Main panel, 14 ... Side panel, 20 ... Instrument panel, 25 ... Windshield.
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Abstract
Description
これを解消するためには、クッションの容量を増やして乗員と車体のウインドシールド並びにインストルメントパネルとの間を埋め、確実に乗員を受け止めることができるようにする必要がある。そのため、助手席用エアバッグ装置のクッションは大容量のものとなり易い。
しかし、大出力のインフレータはコストが高くなるため、全体のコストアップの要因となり、しかもエアバッグ装置や付属部材の強度もその出力に併せて強化する必要があるため、その重量が増大する等の問題がある。
図7は、そのような助手席用エアバッグ装置の一例を示す。
この助手席用エアバッグ装置のクッション100は、その前端側に乗員対向面102を、また上側面にウインドシールド対向面104を有しており、乗員対向面102とウインドシールド対向面104とは内部部材106によって互いに連結された構造から成っている。そのため、インフレータ112がガス噴出作動した際には、そのガス圧によって乗員対向面102が乗員に接近するように膨張すると共に、ウインドシールド対向面104の上下方向の途中部分が、内部部材106を介して乗員対向面102によって引張られ、ウインドシールド122から離隔するようにクッションの内側に凹んだ形状に展開する。これにより、クッション100の容量を減少させている。
また、特許文献2に記載された助手席用エアバッグ装置は、その構造は特許文献1に記載されたものよりもさらに複雑であり、コストが掛かるだけではなく、必ずしもエアバッグ装置のクッションの容量を減らせるとは限らない。
この助手席用エアバッグ装置は、クッションの膨張展開時にその突部をインストルメントパネルの正面に支持させて、それによって助手席用のエアバッグ装置のクッションの容量を小さくしても、その挙動を安定させるものである。
とくに、曲率の小さな接合線に沿って縫合する場合には、メインパネルとサイドパネルを構成する基布間にずれが生じ易いが、例えば上記突部は曲率が他の部分に比して大幅に小さい形状に形成する必要があるため、上記の縫製方法では例えば上記突部を形成することができない。
(2)本発明の助手席用エアバッグ装置のクッションの製造方法は、前記(1)に記載された助手席用エアバッグ装置のクッションの製造方法において、前記クッションは展開膨張状態におけるインストルメントパネル側に乗員が進入する際の支持手段となる突部を備えるものであって、前記任意の曲率の形状部分は、前記突部であることを特徴とする。
(3)本発明の助手席用エアバッグ装置のクッションの製造方法は、前記(1)に記載された助手席用エアバッグ装置のクッションの製造方法において、前記クッションは展開膨張状態においてウインドシールドとインストルメントパネルの上面の間の空隙を埋める前記空隙に対応した形状を備えるものであって、前記任意の曲率の形状部分は、前記空隙に対応した形状部分であることを特徴とする。
図1は、上記助手席用エアバッグ装置のクッション10の膨張時における斜視図である。図2は、膨張時における上記クッション10の側面図であって、乗員が進入する前の状態を示す。
上記助手席用エアバッグ装置1のクッション10は、メインパネル12と両サイドパネル14、つまりスリーピースで構成されており、一枚のメインパネル12の両側縁にそれぞれサイドパネル14を取り付けて一体化した構成から成っている。メインパネル12にはインフレータ取付用の開口15が設けられている。
側面パネル14は、助手席用エアバッグ装置1のクッション10の裏面形状を実現するため、上記突部10b及び窪み10c及び10dに対応した形状に裁断されている。
ここで、クッション10の突部10bは、クッション10の他の部分とは異なる任意の曲率の形状部分(ここでは他の部分に比して極端に曲率が小さく形成された部分)であって、クッション10の膨張展開時にその先端がインストルメントパネル20の正面22に当接して、乗員が進入してきたときに乗員を受け止めるクッション10の支持部を構成する。
図3に示すように、インフレータ30からのガスがクッション10中に進入すると、後述する図5に示すように、クッション10はインストルメントパネル20上でガス噴流により膨張しつつ外方に展開する。クッション10がインストルメントパネル20の上面より外側に展開すると、クッション10の自重の影響を受けて下方へ回り込むように展開し、上記突部10bがインストルメントパネル20の正面22に当接する。一旦当接すると、第2の窪み10dによってクッション10の下方への膨張展開が抑えられて、上記突部10bはインフレータからのガス圧によりインストルメントパネル20の正面22との接触状態が維持され、したがって、膨張展開時におけるクッション10の位置を安定させることができる。
即ち、F1は、乗員の頭部がクッション10に進入する際に、クッション10に作用する力のベクトル(大きさと方向)を表す。また、F2はクッション10に作用する重力のベクトルを示す。F3は、両ベクトルF1とF2の合力のベクトル、即ち、乗員が膨張展開したクッション10に進入するとき、実際にクッション10に作用する力の方向と大きさを示している。
そこで、本助手席用エアバッグ装置では、クッション10の突部10bをインストルメントパネル20の表面に当接しつつ、突部10b以外の部分をできる限り内方に切り込んで窪みを形成し、それによって、膨張展開時におけるエアバッグ装置の挙動を安定させつつクッション10の容量を削減させている。
実際にどの程度の幅が必要かは、想定される乗員の身長や姿勢についての実験結果に基づき決めることができ、実際には、上記突部10bの幅は実験結果で得た数値範囲に所定の安全率を掛けた数値が採用される。
クッション10がインストルメントパネル20の上面の設定位置から膨張展開を始め、ウインドシールド25とインストルメントパネル20の上面間で規制されながら上方及び図示右方向に展開していく様子を示している(図4A~4C参照)。上記クッション10の下面がインストルメントパネル20の上面から外側に出るに従い、上記突部10bがインストルメントパネル20の正面に当接しながら下降して(図4D、E参照)、その位置で安定する(図4F)。
本クッション10と、図8に示す突部10bを設けず単に容量を削減したクッション10とを対比すれば明らかなように、本クッション10はその裏面に突部10bを設けたことにより、インストルメントパネル20の外方に展開したとき、突部10bが下向きに展開してインストルメントパネル20の正面22に当接し、図8に示すようにクッション10が起き上がってインストルメントパネル表面から離れることはない。
図5は、第2の助手席用エアバッグ装置1のクッション10の膨張展開時における側面図である。
クッション10は、膨張展開時にウインドシールド25に当接し、ウインドシールド25とインストルメントパネル20の上面と接触してその挙動を安定化させるが、クッション10の、ウインドシールド25とインストルメントパネル20上面間に展開する部分の形状が、上記両者の間隙の形状に対応させた形状に形成されており、その他の形状等は第1の助手席用エアバッグ装置1と同様である。
製造対象となる助手席用エアバッグ装置は、既に説明したとおりであり、メインパネル12と左右のサイドパネル14とから成っている。
なお、図6Cは図6Bの要部(矩形Sの部分)の拡大図である。
この縫製手順では、メインパネル12と上記突部のような曲率の小さな部分と、その先端に直線部14aを有する形状に裁断された両サイドパネル14を、互いの縁部に沿って縫合する(図6A、6B参照)。この場合、メインパネル12の端部同士及びメインパネル12とサイドパネル14の縫い始めと縫い終わりとをそれぞれ重ねて縫合しないようにしておく。これにより、縫い始め及び縫い終わりでメインパネル12の端部同士は互いに拘束されず、また、上記直線部14aを短辺としメインパネル12の幅を長辺とする矩形Sが縫い残し部分として形成される(図6C参照)。
この方法で縫製することにより、メインパネル12と左右のサイドパネル14とが縫合中にずれても、上記のように、縫い残し部分の矩形の短辺側(上記直線部14a側)を内側にV字状に折り込んで縫合する際に、互いの縫合のずれが調整されるため縫合部の波打ちは発生しない。
したがって、クッション10の上記突部10bや、ウインドシールド25とインストルメントパネル20上面間の部分のように、曲率の小さな形状部分(異形部)を曲率半径を考慮することなく形成することができる。
なお、メインパネル12に複数の異形部を形成することもできる。その場合はメインパネル12を複数のパネルで構成することになる。
Claims (3)
- メインパネルと左右のサイドパネルを構成する各基布の側縁同士を縫合して任意の曲率の形状部分を備えた助手席用エアバッグ装置のクッションを製造する製造方法であって、
前記メインパネルと前記サイドパネルの縫い始め又は縫い終わりの部分に、当該部分におけるそれぞれ前記サイドパネルの幅を短辺とし前記メインパネルの幅を長辺とする矩形の開口を形成するように、前記メインパネルと前記サイドパネルを縫合する工程と、
前記短辺を前記開口に折り込んで前記短辺及び長辺を縫合して前記任意の曲率の形状部分を形成する工程と、
を有することを特徴とする助手席用エアバッグ装置のクッションの製造方法。 - 請求項1に記載された助手席用エアバッグ装置のクッションの製造方法において、
前記クッションは展開膨張状態におけるインストルメントパネル側に乗員が進入する際の支持手段となる突部を備えるものであって、
前記任意の曲率の形状部分は、前記突部であることを特徴とする助手席用エアバッグ装置のクッションの製造方法。 - 請求項1に記載された助手席用エアバッグ装置のクッションの製造方法において、
前記クッションは展開膨張状態においてウインドシールドとインストルメントパネルの上面の間の空隙を埋める前記空隙に対応した形状を備えるものであって、
前記任意の曲率の形状部分は、前記空隙に対応した形状部分であることを特徴とする助手席用エアバッグ装置のクッションの製造方法。
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KR1020127031070A KR20130097080A (ko) | 2010-04-28 | 2011-04-27 | 조수석용 에어백 장치의 쿠션의 제조 방법 |
EP11775079.4A EP2565086A4 (en) | 2010-04-28 | 2011-04-27 | METHOD FOR MANUFACTURING CUSHION FOR FRONT PASSENGER SEAT AIRBAG DEVICE |
US13/642,572 US20130055942A1 (en) | 2010-04-28 | 2011-04-27 | Method of manufacturing cushion for front passenger seat air bag device |
CN2011800205398A CN102858600A (zh) | 2010-04-28 | 2011-04-27 | 副驾驶座用安全气囊装置的缓冲件的制造方法 |
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JP2010104154A JP5433494B2 (ja) | 2010-04-28 | 2010-04-28 | 助手席用エアバッグ装置のクッションの製造方法 |
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JP6224915B2 (ja) * | 2013-05-20 | 2017-11-01 | タカタ株式会社 | エアバッグ及びエアバッグ装置 |
CN104760561A (zh) * | 2015-03-24 | 2015-07-08 | 上海东方久乐汽车安全气囊有限公司 | 一种前排乘员气囊 |
US11027688B2 (en) * | 2019-08-27 | 2021-06-08 | Autoliv Asp, Inc. | Systems and methods to support an inflatable airbag cushion |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS649560A (en) | 1987-07-01 | 1989-01-12 | Nec Corp | Input and output control circuit |
JPH022A (ja) | 1984-06-20 | 1990-01-05 | Tomio Konno | 真空フアイバー電子通信の方法とその装置 |
JPH0769149A (ja) * | 1993-09-02 | 1995-03-14 | Takata Kk | 助手席エアバッグ装置 |
JP2002046562A (ja) * | 2000-08-04 | 2002-02-12 | Takata Corp | エアバッグ |
JP2005329749A (ja) | 2004-05-18 | 2005-12-02 | Toyoda Gosei Co Ltd | 助手席用エアバッグ |
JP2008114616A (ja) * | 2006-10-31 | 2008-05-22 | Nippon Plast Co Ltd | エアバッグ |
JP2008174216A (ja) * | 2006-12-21 | 2008-07-31 | Ashimori Ind Co Ltd | エアバッグ装置 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0651458B2 (ja) * | 1989-10-23 | 1994-07-06 | 池田物産株式会社 | エアバッグ装置 |
US5445414A (en) * | 1994-07-20 | 1995-08-29 | Milliken Research Corporation | Inflatable occupant restraint cushion |
GB9509622D0 (en) * | 1995-05-12 | 1995-07-05 | Alliedsignal Deutschland Gmbh | Airbag |
US5931498A (en) * | 1997-08-21 | 1999-08-03 | Milliken & Company | Simplified air bag configuration |
JP3405182B2 (ja) * | 1998-03-27 | 2003-05-12 | 豊田合成株式会社 | 助手席用エアバッグ装置 |
US6472033B1 (en) * | 1999-07-30 | 2002-10-29 | Milliken & Company | Airbag cushion exhibiting low seam usage and simultaneously high available inflation volume |
US6439606B2 (en) * | 1999-12-07 | 2002-08-27 | Toyoda Gosei Co., Ltd. | Three-dimensional air bags for vehicles |
US6672618B2 (en) * | 2000-10-17 | 2004-01-06 | Milliken & Company | Multiple panel airbag and method |
DE20022020U1 (de) * | 2000-12-28 | 2001-11-08 | Trw Automotive Safety Sys Gmbh | Gassackmodul |
DE20109596U1 (de) * | 2001-06-08 | 2001-10-18 | Trw Automotive Safety Sys Gmbh | Gassack für ein Fahrzeuginsassen-Rückhaltesystem |
US7404575B2 (en) * | 2003-07-14 | 2008-07-29 | Toyoda Gosei Co., Ltd. | Air bag apparatus |
US6932380B2 (en) * | 2003-10-01 | 2005-08-23 | Autoliv Asp, Inc. | Overhead airbag having an external side cushion panel |
JP4666676B2 (ja) * | 2004-10-27 | 2011-04-06 | 日本プラスト株式会社 | エアバッグ装置 |
US7866693B2 (en) * | 2005-07-29 | 2011-01-11 | Takata Corporation | Airbag and airbag system |
EP2090474B1 (en) * | 2006-09-22 | 2012-06-27 | Autoliv Development AB | Method of manufacturing airbag and airbag |
JP5286678B2 (ja) * | 2007-03-14 | 2013-09-11 | タカタ株式会社 | エアバッグの製造方法 |
CN102695634B (zh) * | 2009-12-21 | 2014-11-19 | 丰田自动车株式会社 | 侧面安全气囊装置及侧面安全气囊的缝制方法 |
US8312826B2 (en) * | 2010-08-05 | 2012-11-20 | Faurecia Automotive Seating, Llc | Alignment mechanisms for materials joined at a seam |
CN103842215B (zh) * | 2011-05-02 | 2017-05-17 | NxGen技术有限责任公司 | 侧帘式安全气囊以及用于制造侧帘式安全气囊的方法和设备 |
-
2010
- 2010-04-28 JP JP2010104154A patent/JP5433494B2/ja active Active
-
2011
- 2011-04-27 CN CN2011800205398A patent/CN102858600A/zh active Pending
- 2011-04-27 EP EP11775079.4A patent/EP2565086A4/en not_active Withdrawn
- 2011-04-27 US US13/642,572 patent/US20130055942A1/en not_active Abandoned
- 2011-04-27 KR KR1020127031070A patent/KR20130097080A/ko not_active Application Discontinuation
- 2011-04-27 WO PCT/JP2011/060318 patent/WO2011136298A1/ja active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH022A (ja) | 1984-06-20 | 1990-01-05 | Tomio Konno | 真空フアイバー電子通信の方法とその装置 |
JPS649560A (en) | 1987-07-01 | 1989-01-12 | Nec Corp | Input and output control circuit |
JPH0769149A (ja) * | 1993-09-02 | 1995-03-14 | Takata Kk | 助手席エアバッグ装置 |
JP2002046562A (ja) * | 2000-08-04 | 2002-02-12 | Takata Corp | エアバッグ |
JP2005329749A (ja) | 2004-05-18 | 2005-12-02 | Toyoda Gosei Co Ltd | 助手席用エアバッグ |
JP2008114616A (ja) * | 2006-10-31 | 2008-05-22 | Nippon Plast Co Ltd | エアバッグ |
JP2008174216A (ja) * | 2006-12-21 | 2008-07-31 | Ashimori Ind Co Ltd | エアバッグ装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2565086A4 |
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JP2011230702A (ja) | 2011-11-17 |
EP2565086A1 (en) | 2013-03-06 |
US20130055942A1 (en) | 2013-03-07 |
CN102858600A (zh) | 2013-01-02 |
JP5433494B2 (ja) | 2014-03-05 |
EP2565086A4 (en) | 2013-10-02 |
KR20130097080A (ko) | 2013-09-02 |
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