JP3335059B2 - Vehicle seat with airbag device - Google Patents
Vehicle seat with airbag deviceInfo
- Publication number
- JP3335059B2 JP3335059B2 JP01391396A JP1391396A JP3335059B2 JP 3335059 B2 JP3335059 B2 JP 3335059B2 JP 01391396 A JP01391396 A JP 01391396A JP 1391396 A JP1391396 A JP 1391396A JP 3335059 B2 JP3335059 B2 JP 3335059B2
- Authority
- JP
- Japan
- Prior art keywords
- airbag
- seat
- airbag device
- top plate
- cover
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
Classifications
-
- 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
Landscapes
- Seats For Vehicles (AREA)
- Air Bags (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は衝突時に乗員を側部
から保護する側部用のエアバッグ装置を備えた車輛用シ
ートに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat provided with a side airbag device for protecting an occupant from a side in a collision.
【０００２】[0002]
【従来の技術】エアバッグ装置は、車両の衝突時にエア
バッグを膨張させて乗員を拘束する装置であり、一般に
ガス発生器であるインフレータと、インフレータのガス
により膨張するエアバッグと、これらエアバッグとイン
フレータを収納するエアバッグケースとを備えている。
そして、前記エアバッグ装置は乗員を前方から拘束する
ものに限らず、近年では側方から拘束するものも開発さ
れている。このような側部用エアバッグ装置は、例えば
シートの背もたれのドア側等にエアバッグモジュールを
埋設し、エアバッグケース開口部の近傍で、シートカバ
ーのうちこのエアバッグケースの開口部を被覆するカマ
チ被覆部と天板サイド部とを縫合し、天板サイド部や縫
合糸などの縫合部近辺をエアバッグの所定の展開圧力で
破断することにより開裂させ、この開裂した隙間から前
記エアバッグを展開させている。2. Description of the Related Art An airbag device is a device for inflating an airbag when a vehicle collides and restraining an occupant. The airbag device is generally a gas generator, an airbag which is inflated by gas from the inflator, and these airbags. And an airbag case for storing the inflator.
The airbag device is not limited to a device for restraining an occupant from the front, and in recent years, a device for restraining the occupant from the side has been developed. In such a side airbag device, for example, an airbag module is buried on a door side of a seat back, etc., and covers an opening of the airbag case in the seat cover near an airbag case opening. The wrapped portion and the top plate side are sewn together, and the suturing portion such as the top plate side and the suture is broken by breaking the airbag at a predetermined deployment pressure, and the airbag is opened from the cleaved gap. Are deployed.
【０００３】ところが、一般にシートカバーのカマチ被
覆部は天板部などと同じ伸縮性に富む材料で構成されて
いるため、エアバッグの展開が始まってカマチ被覆部の
内面に圧力がかかるとカマチ被覆部が伸び、このため、
即座に縫合部近辺が破断し難いという問題点があった。[0003] However, since the gusset-covering portion of the seat cover is generally made of the same highly elastic material as the top plate and the like, when the airbag starts to expand and pressure is applied to the inner surface of the gusset-covering portion, the gusset-coating portion is not covered. Part is stretched,
There was a problem that the vicinity of the suturing portion was not easily broken immediately.
【０００４】[0004]
【発明が解決しようとする課題】本発明は前記のような
従来の問題点を解決して、エアバッグの展開によりカマ
チ被覆部の内面に展開圧力がかかると即座に縫合部近辺
に応力が集中してこの部分が破断するエアバッグ装置を
備えた車輛用シートを提供することを目的として完成さ
れたものである。SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and when the deployment pressure is applied to the inner surface of the gusset covering portion by the deployment of the airbag, the stress is immediately concentrated near the suturing portion. The present invention has been completed for the purpose of providing a vehicle seat provided with an airbag device in which this portion is broken.
【０００５】[0005]
【課題を解決するための手段】前記の課題を解決するた
めになされた本発明は、シートバックフレームを被覆す
るシートカバーのカマチ被覆部と天板サイド部との縫合
部近辺をエアバッグ装置のケースから膨出するエアバッ
グの展開圧力により破断して乗員を側方から膨出するエ
アバッグにより拘束するようにしたエアバッグ装置を備
えた車輛用シートにおいて、前記シートカバーのカマチ
被覆部を、シートカバーの他の部分と同様の伸縮性のあ
る表生地と伸縮性の乏しい裏生地とを重ねた合わせ生地
からなり他の部分よりも伸縮性の乏しい部材をもって構
成したことを特徴とするエアバッグ装置を備えた車輛用
シートが請求項１の発明であり、前記したような請求項
１に記載したエアバッグ装置を備えた車輛用シートにお
いて、一端をシートバックフレームに連繋した帯状体の
他端をカマチ被覆部と天板サイド部の縫合部に共縫いし
ておくことによりシートカバーのカマチ被覆部と天板サ
イド部との縫合部近辺の開裂をより速めるようにしたも
のが請求項２の発明である。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to an airbag device which is provided near a seam portion between a top cover side portion and a seat cover portion of a seat cover for covering a seat back frame. In a vehicle seat provided with an airbag device that is broken by the deployment pressure of an airbag that inflates from a case and restrains an occupant by an airbag that inflates from the side, a gusset covering portion of the seat cover includes : The same elasticity as the rest of the seat cover
Fabric with layered outer fabric and poorly stretchable back fabric
The vehicle seat with an airbag apparatus characterized by being configured with a stretchable poor members than the other portion consists of a an invention of claim 1, an air bag as set forth in claim 1 as described above In a vehicle seat equipped with a device, a belt-like body having one end connected to a seat back frame is provided.
The other end is sewn together to the stitching part of the camach covering part and the side of the top
The seat cover cover and the top plate cover
Faster tearing near the suture part with the id part
This is the second aspect of the present invention .
【０００６】[0006]
【発明の実施の形態】以下に、本発明の好ましい実施の
形態を図面を参照しつつ示す。１はエアバッグ装置であ
って、このエアバッグ装置１は図示しないインフレータ
とエアバッグ２とを外側面が開口部とされたケース３に
収納したもので、このエアバッグ装置１は、車輛のシー
トバックフレーム５の側壁に埋設されて常時はシートバ
ックフレーム５に被装されたシートカバー６により隠蔽
されているが、緊急時にはインフレータの作動で乗員と
車室壁との間にエアバッグ２がケース３の開口部より膨
出してシートカバー６のカマチ被覆部７と天板サイド部
８との縫合部近辺に所定の展開圧力を加え、この天板サ
イド部８や縫合糸４をこの展開圧力で破断することによ
り開裂させ、この開裂した隙間から膨出するエアバッグ
２により側方からの衝突に対して乗員を保護するもので
ある。なお、前記ケース３は図示のようなボックス状の
ものに限らず紙、布、合成樹脂フィルム等からなる袋状
のものであってもよい。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes an airbag device. The airbag device 1 has an inflator (not shown) and an airbag 2 housed in a case 3 having an opening on the outer surface. It is buried in the side wall of the back frame 5 and is normally concealed by the seat cover 6 covered by the seat back frame 5, but in an emergency, the airbag 2 is placed between the occupant and the cabin wall by the operation of the inflator. 3, a predetermined developing pressure is applied to the vicinity of the stitching portion between the gusset covering portion 7 of the seat cover 6 and the top plate side portion 8 so that the top plate side portion 8 and the suture 4 are moved by this developing pressure. The occupant is protected from collision from the side by the airbag 2 which is ruptured by breaking and swelling from the cleaved gap. The case 3 is not limited to a box-shaped one as shown, but may be a bag-shaped one made of paper, cloth, synthetic resin film or the like.
【０００７】前記シートカバー６は従来のこの種シート
カバーと同様に天板部９およびこれに続く天板サイド部
８が編地や伸縮織地、合成樹脂地などの伸縮性の良好な
生地よりなるものであるが、カマチ被覆部７は天板部９
や天板サイド部８に比べて伸縮性の乏しい部材をもって
構成してあり、この点に本発明の特徴がある。このカマ
チ被覆部７を構成している伸縮性の乏しい部材として図
示した本発明の実施形態のものは、天板部９や天板サイ
ド部８と同様に伸縮性のある編地や伸縮織地、合成樹脂
地を表生地７ａとしてその裏側に、表面を平滑化した合
成樹脂地と裏基布とのラミネート地或いはポリエステル
繊維系の緻密な織布地のような伸縮性の乏しい裏生地７
ｂを重ねた二重の合わせ地としているが、前記したよう
にカマチ被覆部７を天板部９や天板サイド部８に比べて
伸縮性の乏しい部材をもって構成したことは、膨出する
エアバッグ２の展開圧力がカマチ被覆部７の内面にかか
った際にカマチ被覆部７の伸びを小さくして即座に縫合
部近辺が破断するようにすることを目的とするものであ
るから、カマチ被覆部７を他の部分よりも伸縮性の乏し
い部材としてあればよいことは勿論である。なお、カマ
チ被覆部７を二重の合わせ地とする場合において、裏生
地７ｂとする合成樹脂地と裏基布とのラミネート地を用
いる場合は合成樹脂地の平滑表面が膨出するエアバッグ
２に接する側となるように表生地７ａの裏側に重ねてお
くことによりエアバッグ２の膨出時にエアバッグ２とカ
マチ被覆部７との間の摩擦抵抗を少なくなるようにして
おくことが好ましい。また、図示した本発明の実施形態
では、一端をシートバックフレーム５に連繋しておいた
帯状体１０の他端を天板サイド部８とカマチ被覆部７と
の縫合部に共縫いしたものとしている。The seat cover 6 has a top plate portion 9 and a top plate side portion 8 following the top plate portion 9 made of a fabric having good elasticity, such as a knitted fabric, an elastic woven fabric, and a synthetic resin fabric, similarly to a conventional seat cover of this type. However, the machichi covering part 7 is a top plate part 9.
It is composed of a member having less elasticity than the top plate side portion 8 and this point is a feature of the present invention. The thing of the embodiment of the present invention illustrated as a member with poor elasticity that constitutes the camachi covering portion 7 is a knitted fabric or an elastic woven fabric that has elasticity similar to the top plate portion 9 or the top plate side portion 8, A backing cloth 7 having a poor elasticity such as a laminate of a synthetic resin base having a smooth surface and a backing base cloth or a dense woven cloth of polyester fiber is provided on the back side of the synthetic resin base as a front cloth 7a.
b, but as described above, the machichi covering portion 7 is made of a member having less elasticity than the top plate portion 9 and the top plate side portion 8, which means that the bulging air When the deployment pressure of the bag 2 is applied to the inner surface of the gusset covering portion 7, the extension of the gusset covering portion 7 is reduced so that the vicinity of the suturing portion is immediately broken. It goes without saying that the portion 7 may be a member having less elasticity than other portions. In addition, in the case where the Kamachi covering part 7 is a double mating ground, and when a laminated ground of a synthetic resin ground as the backing cloth 7b and a back base cloth is used, the airbag 2 in which the smooth surface of the synthetic resin ground swells. It is preferable to reduce the frictional resistance between the airbag 2 and the gusset covering portion 7 when the airbag 2 is inflated by stacking it on the back side of the front cloth 7a so as to be in contact with the airbag 2. Further, in the illustrated embodiment of the present invention, it is assumed that the other end of the band-shaped body 10 having one end connected to the seat back frame 5 is sewn to the seam of the top plate side portion 8 and the gusset covering portion 7 together. I have.
【０００８】このように構成されたものは、エアバッグ
装置１のインフレーターが作動した初期の段階で、先ず
エアバッグ２がわずかに膨らむと、その展開圧力によっ
てエアバッグケース３の開口部からエアバッグ２が膨出
し、更にエアバッグ２が膨むとカマチ被覆部７に達する
こととなるが、このときカマチ被覆部７を伸縮性に乏し
い生地よりなるものとしてあるため、エアバッグ２の膨
出に伴いその展開圧力が即座にこの伸縮性に乏しいカマ
チ被覆部７から天板サイド部８とカマチ被覆部７との縫
合部に集中し、これによりシートカバー６はカマチ被覆
部７と天板サイド部８との縫合部近辺より容易に破断さ
れることとなる。In the air bag device 1 constructed as described above, when the air bag 2 is slightly inflated at the initial stage when the inflator of the air bag device 1 is operated, the air bag 2 is opened from the opening of the air bag case 3 by the developing pressure. When the airbag 2 expands and further inflates the airbag 2, the airbag 2 reaches the gusset coating 7. At this time, since the machichi coating 7 is made of a material having poor elasticity, the airbag 2 expands. The unfolding pressure is immediately concentrated from the poorly stretched machichi covering portion 7 to the suture portion between the top plate side portion 8 and the gusset covering portion 7, whereby the seat cover 6 is attached to the machichi covering portion 7 and the top plate side portion 8. Will be easily broken from the vicinity of the suturing portion.
【０００９】なお、前記したように伸縮性の乏しい部材
をもって構成されるカマチ被覆部７を、シートカバー６
の他の部分と同様な伸縮性のある表面材７ａと伸縮性の
乏しい裏部材７ｂとの重ね合わせ材よりなるものとした
ものは、シートカバー６全体が同じ生地よりなるような
外観を呈するうえにカマチ被覆部７の強度が増すので美
観上および強度上特に好ましく、また、一端をシートバ
ックフレーム５に連繋しておいた帯状体１０の他端をカ
マチ被覆部７と天板サイド部８との縫合部に共縫いして
おいたときは、エアバッグ２の膨出に伴う展開圧力の縫
合部への集中が可能となるので縫合部のより速い開裂が
得られることとなるのでさらに好ましいものとなる。In addition, as described above, the machichi covering portion 7 composed of a member having poor elasticity is attached to the seat cover 6.
Is made of a superimposed material of a stretchable surface material 7a and a poorly stretchable back member 7b similar to the other parts, and has an appearance such that the entire seat cover 6 is made of the same material. This is particularly preferable in terms of aesthetics and strength because the strength of the gusset covering portion 7 is increased. In addition, the other end of the band 10 having one end connected to the seat back frame 5 is connected to the gusset covering portion 7 and the top plate side portion 8. Is more preferable because the deployment pressure accompanying the inflation of the airbag 2 can be concentrated on the sewn portion, so that a faster suturing of the sewn portion can be obtained. Becomes
【００１０】[0010]
【発明の効果】以上の説明からも明らかなように、本発
明はシートカバーのカマチ被覆部をたの部分よりも伸縮
性の乏しい部材をもって構成しておくだけで、エアバッ
グの膨出によりカマチ被覆部の内面に展開圧力がかかる
と即座に縫合部近辺に応力集中してこの部分を速やかに
破断することができるものとなる。よって本発明は従来
の問題点を一掃した側方からの衝突に対して乗員を保護
するエアバッグ装置を備えた車輛用シートとして、産業
の発展に寄与するところは極めて大きいものである。As is apparent from the above description, the present invention merely comprises a seat cover having a less stretchable member than the other portion of the seat cover, and the seat cover is formed by the air bag inflated to expand the seat. When deployment pressure is applied to the inner surface of the covering portion, stress is immediately concentrated near the suture portion, and this portion can be rapidly broken. Therefore, the present invention greatly contributes to industrial development as a vehicle seat provided with an airbag device for protecting an occupant from a side collision which has eliminated the conventional problems.
【図１】本発明の１実施の形態の要部を示す断面図であ
る。FIG. 1 is a sectional view showing a main part of one embodiment of the present invention.
【図２】本発明の１実施の形態の要部をエアバッグが膨
出した状態で示す断面図である。FIG. 2 is a cross-sectional view showing a main part of the embodiment of the present invention in a state where an airbag is inflated.
１ エアバッグ装置 ２ エアバッグ ３ ケース ５ シートバックフレーム ６ シートカバー ７ カマチ被覆部 7a 表生地 7b 裏生地 ８ 天板サイド部 10 帯状体 DESCRIPTION OF SYMBOLS 1 Airbag apparatus 2 Airbag 3 Case 5 Seatback frame 6 Seat cover 7 Kamachi covering part 7a Outer cloth 7b Backing cloth 8 Top plate side part 10 Belt
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平４−356246（ＪＰ，Ａ) 特開 平７−228211（ＪＰ，Ａ) 特開 平７−215159（ＪＰ，Ａ) 特開 平９−76868（ＪＰ，Ａ) 特開 平９−295547（ＪＰ，Ａ) 特開 平10−53089（ＪＰ，Ａ) 実開 平２−100863（ＪＰ，Ｕ) 実開 昭51−4036（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B60R 21/16 - 21/32 B60N 2/42 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-356246 (JP, A) JP-A-7-228211 (JP, A) JP-A-7-215159 (JP, A) JP-A-9-209 76868 (JP, A) JP-A-9-2955547 (JP, A) JP-A-10-53089 (JP, A) JP-A-2-100863 (JP, U) JP-A-51-4036 (JP, U) (58) Field surveyed (Int. Cl. 7 , DB name) B60R 21/16-21/32 B60N 2/42
Claims (2)
ートカバー(6) のカマチ被覆部(7) と天板サイド部(8)
との縫合部近辺をエアバッグ装置(1) のケース(3) から
膨出するエアバッグ(2) の展開圧力により破断して乗員
を側方から膨出するエアバッグ(2) により拘束するよう
にしたエアバッグ装置を備えた車輛用シートにおいて、
前記シートカバー(6) のカマチ被覆部(7) を、シートカ
バー(6) の他の部分と同様の伸縮性のある表生地(7a)と
伸縮性の乏しい裏生地(7b)とを重ねた合わせ生地からな
り他の部分よりも伸縮性の乏しい部材をもって構成した
ことを特徴とするエアバッグ装置を備えた車輛用シー
ト。1. A seat cover (6) for covering a seat back frame (5) and a top cover side part (8) of a seat cover (6).
The airbag (2) that expands from the side of the airbag device (1) breaks due to the deployment pressure of the airbag (2) that expands from the case (3) of the airbag device (1) and restrains the occupant from the side. In a vehicle seat provided with an airbag device,
The rail cover portion of the seat cover (6) and (7), Shitoka
Stretch fabric (7a) similar to the rest of the bar (6)
It is made from a laminated fabric that is layered with the back fabric (7b) with poor elasticity.
Ri vehicle seat provided with an airbag apparatus characterized by being configured with a stretchable poor members than the other portions.
した帯状体(10)の他端をカマチ被覆部(7) と天板サイド
部(8) の縫合部に共縫いしてある請求項１に記載のエア
バッグ装置を備えた車輛用シート。2. One end is connected to the seat back frame (5).
At the other end of the strip (10),
2. A vehicle seat provided with an airbag device according to claim 1, wherein the seat is sewn together at a stitching portion of the portion (8) .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01391396A JP3335059B2 (en) | 1996-01-30 | 1996-01-30 | Vehicle seat with airbag device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01391396A JP3335059B2 (en) | 1996-01-30 | 1996-01-30 | Vehicle seat with airbag device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09202205A JPH09202205A (en) | 1997-08-05 |
| JP3335059B2 true JP3335059B2 (en) | 2002-10-15 |
Family
ID=11846416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP01391396A Expired - Lifetime JP3335059B2 (en) | 1996-01-30 | 1996-01-30 | Vehicle seat with airbag device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3335059B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4082843A4 (en) | 2019-12-24 | 2024-02-07 | TS Tech Co., Ltd. | Vehicle seat |
-
1996
- 1996-01-30 JP JP01391396A patent/JP3335059B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09202205A (en) | 1997-08-05 |
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