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JP3731075B2 - Airbag module built-in seat - Google Patents

Airbag module built-in seat Download PDF

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Publication number
JP3731075B2
JP3731075B2 JP30586796A JP30586796A JP3731075B2 JP 3731075 B2 JP3731075 B2 JP 3731075B2 JP 30586796 A JP30586796 A JP 30586796A JP 30586796 A JP30586796 A JP 30586796A JP 3731075 B2 JP3731075 B2 JP 3731075B2
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JP
Japan
Prior art keywords
skin
seat
airbag module
sewing
airbag
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 - Fee Related
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JP30586796A
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Japanese (ja)
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JPH10129392A (en
Inventor
均 吉田
文夫 梅澤
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TS Tech Co Ltd
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TS Tech Co Ltd
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Priority to JP30586796A priority Critical patent/JP3731075B2/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/207Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats

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  • Air Bags (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、エアバック装置のエアバックモジュールをシートバックの側部内に内蔵するエアバックモジュール内蔵シートの改良に関するものである。
【0002】
【従来の技術】
エアバックモジュール内蔵シートとしては、エアバック装置のエアバックモジュールをシートバックの片側側部内に装備し、そのシートバックの側部面をフラットに保って組み立てるのものが既に提案されている。また、シート表皮の側面表皮と土手表皮との縫着ラインを所定長さの破断部として形成し、エアバックを該破断部より膨張展開させるものも知られている。このエアバックモジュール内蔵シートにおいては、エアバックモジュールを内部に備えても、シートバックの外観形態を通常通り保てるところから好ましい。
【0003】
但し、そのエアバックモジュール内蔵シートにおいてはシート表皮がエアバックの膨張の邪魔とならず、また、玉縁を共縫いするシート表皮の破断部がエアバックの膨張に伴って確実に拡開できるよう構成する必要がある。
【0004】
【発明が解決しようとする課題】
本発明は、シート表皮がエアバックの膨張の邪魔とならないことは勿論、玉縁を共縫いしても、破断部がエアバックの膨張に伴って確実に拡開できるよう構成するエアバックモジュール内蔵シートを提供することを目的とする。
【0005】
【課題を解決するための手段】
本発明に係るエアバックモジュール内蔵シートにおいては、土手表皮と座面表皮とから所定の立体形状に縫製された前面の表皮部に対し、玉縁を該表皮部の三辺回り端末に番手の小さい上下の縫い糸で縫着するのに加えて、大きい番手の糸を少なくとも片側に含む上下の縫い糸から側面表皮を玉縁と共に該表皮部の三辺回りに端末間で縫着し、更に、エアバックモジュールの収容個所を除き、少なくとも該エアバックモジュールの収容個所より連続する側面表皮の上下寄りを番手の小さい上下の縫い糸で該表皮部と端末間で二重縫いした破断部を設けることにより構成されている。
【0006】
【発明の実施の形態】
以下、添付図面を参照して説明すると、図示実施の形態は右ハンドル車のアシスタント用シートにおいてエアバックモジュールEをシートバックBの左側部内に組付け装備するものとして示されている。そのシートバックBは、図1で示すようにシートバックフレーム1を備え、このシートバックフレーム1をベースにクツションパッド2を組付け装着し、また、シート表皮3をクッションパッド2に被せてバックボード4を後部側に組付け固定することにより組み立てられている。
【0007】
そのシートバックBは、図2で示すように金属製の丸パイプから略四辺形に軸線曲げ形成されたシートバックフレーム1を用いて組み立てられている。また、このシートバックフレーム1にはクッションパッド2の側部パッド部20寄りで土手パッド部21を内側より支持するサイドフレーム11,12が各縦軸部10a,10bの軸線上に取付け固定することにより備え付けられている。
【0008】
そのサイドフレーム11,12のうち、片方11は帯板状のプレート部材から形成されたサイドプレートでなり、他方12はワイヤ部材を土手パッド部21の隆起形状に相応するよう軸線曲げ形成したワイヤフレームでなる。この他に、シートバックフレーム1にはリテーナー等の止め金具13で端末止着することにより複数本のジグザグバネ14a,14b…が縦軸部10a,10bの軸間に掛渡し装備されている。
【0009】
そのシートバックフレーム1において、サイドプレート11にはシートバックフレーム1の縦軸部10aにあてがい固定されるフランジ部11aより板面を内方に段下げさせてエアバックモジュールEを収容する段部面11bを設けたものが備え付けられている。この段部面11bはエアバックモジュールEを収容可能な空間乃至は面積を持って形成され、そのサイドプレート11は段下げ縁11cを前側に位置させてシートバックフレーム1の縦軸部10aにフランジ部11aで固定装着することによりシートバックフレーム1の片側部に備え付けられている。
【0010】
そのサイドプレート11には、エアバックモジュールEが段部面11bに取付け装備されている。このエアバックモジュールEはガス発生部を含むモジュール本体e1 とエアバックe2 とを備えてなり、エアバックe2 を外向きに位置させて全体を段部面11bの内側に収容配置することにより組み付けられている。
【0011】
そのサイドプレート11を含めて、シートバックフレーム1の全体にはクッションパッド2が組み付けられている。このクッションパッド2は、側面パッド部20,土手パッド部21並びに座面パッド部23から一体に発泡成形したものでなり、図1で示すように側面パッド部20の肉厚を切り抜いてエアバックモジュールEの外郭形状に略相応する開口部22を側面パッド部20の面内に設けたものが組み付けられている。
【0012】
そのクッションパッド2には、エアバックe2 側を開口部22の口内に位置させて、エアバックモジュールEがエアバックe2 側で側面パッド部20の外表面と略面一になるよう組み付けられている。
【0013】
そのクッションパッド2は、エアバックモジュールEを含む全体が外部から見えないようシート表皮3で被包されている。このシート表皮3には、表皮材3a,ワディング材3b,裏打材3cを三者一体に積層形成したワディングカバーを用いることができる。そのシート表皮3は、クッションパッド2の側面パッド部20,土手パッド部21並びに座面パッド部23の各部を被包可能な平面形状に形取り裁断された複数枚の表皮30,31,32(以下、「カバー材」という。)を端末間で縫い合わせることにより所定の立体形状に縫製されている。
【0014】
このように、エアバックモジュールEを内蔵させてシートバックBを組み立てると、エアバックモジュールEはサイドプレート11の段部面11bに収容させて装備することから、シートバックBはシート表皮3の側面カバー材30を膨出させないで側部面をフラットに保って組み立てることができる。
【0015】
そのエアバックモジュールEは、エアバックe2 側を開口部22の口内に位置させてエアバックe2 側で側面パッド部20の外表面と略面一になるよう組み付けられているため、エアバックe2 が膨張展開する際にクッションパッド2が邪魔とならずしかもシート表皮3をエアーバックe2 で直接圧迫できることにより後述する破断部をエアバックe2 の膨張に伴って確実に拡開でき、また、シートバックBの側部面をフラットに保って組み立てることができる。
【0016】
それに加えて、サイドプレート11にはエアーバックモジュールEの装備個所として段部面11bを設けることから、サイドプレート11の剛性を保って剛性を高められるよう形成できるばかりでなく、このサイドプレート11のみでエアバックモジュールEを安定よく組付け支持することができる。
【0017】
そのシートバックBにおいては、図3で示すようにエアバックe2 の膨張に伴う所定長さL1 の破断部5がクッションパッド2の側面パッド部20を被うサイドマチとなる側面カバー材30と土手パッド部21を被う土手カバー材31との縫着ラインに設けられている。この破断部5は、土手カバー材31とクッションパッド2の座面パッド部22を被う座面カバー材32とから所定の立体形状に縫製された前面の表皮部31,32に対し、側面カバー材30を該表皮部31,32の三辺回りに縫着する糸の太さを選択することにより形成されている。
【0018】
具体的には、図4で示すように大きい番手の細い糸を少なくとも片側に含む上下の縫い糸50から側面カバー材30を表皮部31,32の三辺回りに端末間で縫着する。その縫い糸50としては、番手8番程度の太い糸と番手20番程度の細い糸とを上下の縫い糸に選択すればよい。
【0019】
それに加えて、上述した所定長さL1 に相当するエアバックモジュールEの収容個所を除き、番手の小さい上下の縫い糸51aから側面カバー材30の少なくとも上下寄りL2 ,L3 を前面の表皮部31,32と端末間で二重縫いする。この縫い糸51aとしては、通常用いられている小さい番手の5または8番程度の太くて強い糸を上下の縫い糸に用いればよい。
【0020】
その縫製によると、シート表皮3には大きい番手の細い糸を含む上下の縫い糸50のみによる縫着個所がエアバックe2 の膨張で強く圧迫されて糸切れを生ずることにより所定長さL1 の破断部5として形成することができる。
【0021】
なお、小さい番手の糸による縫着個所は上述した5または8番程度の番手の異なる太くて強い縫い糸51a,51bで更に二重縫いしてもよい。また、その小さな番手の縫い糸51a,51bのいずれかによってはエアバックモジュールEの収容個所を除いて側面カバー材30と表皮部31,32の三辺回りとの残余全てを縫着するようにもできる。
【0022】
そのシート表皮3を吊込み止着するには、図1で示すようにクッションパッド2の側面パッド部20を被う側面カバー材30の端末と、クッションパッド2の土手パッド部21を被う土手カバー材31と座面パッド部22を被う座面カバー材22との端末縫着個所とを金属ワイヤ製の吊込み部材6a,6bでシートバックフレーム1に吊込み固定するとよい。
【0023】
その金属ワイヤ製の吊込み部材6a,6bによると、エアバックe2 の膨張に対抗するよう側面カバー材30並びに座面カバー材31を強く引張保持するよう強固に吊込み止着できる。このため、シート表皮3の破断部5をエアバックe2 の膨張に伴って確実に破断開口させることができる。
【0024】
そのうち、側面カバー材30の吊込みは図5で示すように側面カバー材30の端末を袋状に縫製し、この袋部30aの先端長手方向に沿って切欠部30bを複数個定間隔毎に設け、また、吊込み部材6aとして金属ワイヤ60aの軸線をコの字状に折曲げ成形した掛止め環60bを側面カバー材30の切欠部30bに対応させて複数個設けたものを用いることができる。その構成中、袋部30aは他の部分よりも上下共に番手の小さい5番程度の縫い糸52で縫着するとよい。
【0025】
その吊込み部材6aは、金属ワイヤ60aの各掛止め環60bを袋部30aの切欠部30bより外方に突出させて全体を袋部30aの内部に挿通することにより側面カバー部材30の袋部30aに組み付ける。この吊込み部材6aでは、コの字状の掛止め環60bをシートバックフレーム1の縦軸部10a(片側のみ図示)に取付け固定したジグザグバネ用止め金具13aの突片13bに係合することにより側面カバー材30の端末をシートバックフレーム1に吊込み固定することができる。
【0026】
一方、土手カバー材31と座面カバー材32との端末縫着個所には図5で示すように吊込み袋61aを共縫いし、直線状のリスティングワイヤ61bを吊込み袋61aの内部に挿通させて備え付ける。また、吊込み部材6bとしては知恵の輪状の掛止めリング62a,62bを金属ワイヤ62cの両端に弯曲形成したものを用いるようにできる。
【0027】
この吊込み部材6bでは一端側の掛止めリング62aを吊込み袋61aのリスティングワイヤ61bに掛け止め、クッションパッド2の吊込み穴24を介し、他端側の掛止めリング62bをシートバックフレーム1のいずれかのジグザグバネ14a,14b…に掛け止めることにより土手カバー材31と座面カバー材32との端末縫着個所をシートバックフレーム1に吊込み固定するようにできる。この吊込み構造でも、吊込み袋61aは他の部分よりも上下共に番手の小さい5番程度の太くて強い縫い糸53で縫着するとよい。
【0028】
そのシート表皮3においては、少なくともエアバックモジュールEを含むクッションパッド2の側面パッド部20を被う側面カバー材30はトリコット等の引張り強度を有する裏打材3cを備えたもので形成するとよい。これと共に、土手カバー材31も同様なトリコット等の引張り強度を有する裏打材3cを備えたもので形成してもよい。
【0029】
そのカバー材によると、金属ワイヤ製の吊込み部材6a,6bと共に、エアバックe2 の膨張に対抗できるから、破断部5をエアバックe2 の膨張で確実に破断開口できしかもカバー材が複雑に千切れて飛散するのを防ぐことができる。
【0030】
そのシート表皮3においては、図7で示すように側面カバー材30と土手カバー材31との縫着個所に共縫いすることにより玉縁7を備えるようにできる。この場合に、玉縁7は前面の表皮部31,32の三辺回り端末と5番程度の番手の小さい上下の太くて強い縫い糸54で仮縫いし、更に、上述した大きい番手の細い糸を含む縫い糸50から側面カバー材30を表皮部31,32の三辺回りに端末間で縫着するとよい。
【0031】
このように玉縁7を縫着すると、玉縁7が前面の表皮部31,32側に強く縫着されているから、エアバックe2 が膨張するのに伴って玉縁7が表皮部31,32の端末側に付いたままで破段部5が側面カバー30との間で拡開する。そのため、側面カバー材30は玉縁7による制約を受けないで大きく展開することができる。また、前面の表皮部31,32はエアバックe2 が膨張するのに伴って玉縁7の剛性で対抗でき、通常のカバー材を用いて形成しても複雑に千切れるのを防ぐことができる。
【0032】
【発明の効果】
以上の如く、本発明に係るエアバックモジュール内蔵シートに依れば、エアバックが膨張するのに伴って玉縁が前面表皮部の端末側に付いたままで破段部が側面表皮との間で拡開するため、側面表皮は玉縁による制約を受けないで大きく展開することができる。また、前面の表皮部はエアバックの膨張に伴って玉縁の剛性で対抗でき、通常のカバー材を用いて形成しても複雑に千切れるのを防ぐことができる。
【図面の簡単な説明】
【図1】本発明のエアバックモジュール内蔵シートを示す部分断面図である。
【図2】同エアバックモジュール内蔵シートのシートバックフレームを示す斜視図である。
【図3】同エアバックモジュール内蔵シートを示す全体斜視図である。
【図4】同エアバックモジュール内蔵シートのシート表皮を内面側から示す部分斜視図である。
【図5】同シート表皮の吊込み構造を側面表皮の端末側で示す説明図である。
【図6】同シート表皮の吊込み構造を土手面表皮と座面表皮と縫着個所で示す説明図である。
【図7】同シート表皮における玉縁との縫着構造を示す説明図である。
【符号の説明】
B シートバック
E エアバックモジュール
1 シートバックフレーム
2 クッションパッド
3 シート表皮
30 側面表皮
31 土手表皮
32 座面表皮
5 破断部
50 大きい番手の糸を含む縫い糸
51a,51b 小さい番手の縫い糸
54 小さい番手の縫い糸
7 玉縁
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement in an airbag module built-in seat in which an airbag module of an airbag device is built in a side portion of a seat back.
[0002]
[Prior art]
As a seat with a built-in airbag module, there has already been proposed a seat in which an airbag module of an airbag device is installed in one side portion of the seat back and the side surface of the seat back is kept flat. In addition, there is also known a technique in which a sewing line between a side skin of a seat skin and a bank skin is formed as a rupture portion having a predetermined length, and an airbag is inflated and deployed from the rupture portion. The seat with a built-in airbag module is preferable because the appearance of the seat back can be maintained as usual even if the airbag module is provided inside.
[0003]
However, in the seat with a built-in airbag module, the seat cover does not interfere with the expansion of the airbag, and the rupture portion of the seat cover that is sewn together with the rim can be surely expanded as the airbag expands. Must be configured.
[0004]
[Problems to be solved by the invention]
The present invention has a built-in airbag module in which the seat cover does not interfere with the expansion of the airbag, and the broken portion can be surely expanded with the expansion of the airbag even when the rims are stitched together. The purpose is to provide a sheet.
[0005]
[Means for Solving the Problems]
In the seat with a built-in airbag module according to the present invention, with respect to the front skin portion sewn in a predetermined three-dimensional shape from the bank skin and the seat surface skin, the edge is small in the terminal around the three sides of the skin portion. In addition to sewing with the upper and lower sewing threads, the side skin is sewn between the terminals around the three sides of the outer skin together with the bead from the upper and lower sewing threads containing at least one large count thread, and the airbag Except for the module housing location, at least the side skin that is continuous from the airbag module housing location is formed by providing a broken portion that is double-sewn between the skin and the terminal with a small upper and lower sewing thread. ing.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the accompanying drawings, the illustrated embodiment is shown as an air bag module E installed in a left side portion of a seat back B in an assistant seat of a right-hand drive vehicle. The seat back B includes a seat back frame 1 as shown in FIG. 1, and a cushion pad 2 is assembled and mounted on the seat back frame 1 as a base. It is assembled by assembling and fixing the board 4 to the rear side.
[0007]
As shown in FIG. 2, the seat back B is assembled by using a seat back frame 1 that is formed by bending an axis from a metal round pipe into a substantially quadrilateral shape. Further, side frames 11 and 12 for supporting the bank pad portion 21 from the inside near the side pad portion 20 of the cushion pad 2 are attached and fixed to the seat back frame 1 on the axis of each of the vertical portions 10a and 10b. It is equipped with.
[0008]
One of the side frames 11 and 12 is a side plate formed of a strip-like plate member, and the other 12 is a wire frame in which the wire member is formed by bending an axis so as to correspond to the raised shape of the bank pad portion 21. It becomes. In addition, a plurality of zigzag springs 14 a, 14 b... Are provided between the shafts of the longitudinal axis portions 10 a, 10 b by being fastened to the seat back frame 1 with a stopper 13 such as a retainer.
[0009]
In the seat back frame 1, the side plate 11 has a stepped portion surface that accommodates the airbag module E by lowering the plate surface inward from a flange portion 11 a fixed to the longitudinal axis portion 10 a of the seat back frame 1. The thing provided with 11b is equipped. The step surface 11b is formed with a space or an area capable of accommodating the airbag module E, and the side plate 11 has a flange on the longitudinal axis portion 10a of the seat back frame 1 with the step-down edge 11c positioned on the front side. It is provided on one side of the seat back frame 1 by being fixedly attached at the portion 11a.
[0010]
The side plate 11 is equipped with an airbag module E attached to the step surface 11b. The airbag module E includes a module main body e 1 including a gas generating portion and an airbag e 2, and the airbag e 2 is positioned outwardly so as to be accommodated and disposed inside the stepped surface 11 b. It is assembled by.
[0011]
The cushion pad 2 is assembled to the entire seat back frame 1 including the side plate 11. This cushion pad 2 is integrally foam-molded from the side pad part 20, the bank pad part 21 and the seat pad part 23, and cuts off the thickness of the side pad part 20 as shown in FIG. A structure in which an opening 22 substantially corresponding to the outer shape of E is provided in the surface of the side pad portion 20 is assembled.
[0012]
The airbag pad E 2 is positioned on the cushion pad 2 so that the airbag module E is substantially flush with the outer surface of the side pad portion 20 on the airbag e 2 side. ing.
[0013]
The cushion pad 2 is encapsulated with a seat skin 3 so that the entirety including the airbag module E cannot be seen from the outside. For the sheet skin 3, a wading cover in which a skin material 3a, a wadding material 3b, and a backing material 3c are laminated together in one body can be used. The seat skin 3 is made up of a plurality of skins 30, 31, 32 (in the shape of a plane that can encapsulate each part of the side pad portion 20, the bank pad portion 21 and the seat pad portion 23 of the cushion pad 2). Hereinafter, the cover material is sewn into a predetermined three-dimensional shape by sewing between the terminals.
[0014]
Thus, when the seat back B is assembled by incorporating the airbag module E, the airbag module E is accommodated and installed in the stepped surface 11b of the side plate 11, so that the seat back B is the side surface of the seat skin 3. The cover member 30 can be assembled with the side surface kept flat without swelling.
[0015]
Therefore airbag module E is being assembled so as to be substantially flush with the outer surface of the side pad portion 20 in the airbag e 2 side is located an air bag e 2 side in the mouth of the opening 22, the air bag can be reliably expanded with a rupture portion to be described later to inflate the airbag e 2 by the addition seat skin 3 not cushion pad 2 a hindrance be squeezed directly airbag e 2 when e 2 is inflated and deployed, Further, the side surface of the seat back B can be kept flat and assembled.
[0016]
In addition, since the side plate 11 is provided with a stepped surface 11b as an installation part of the air bag module E, not only can the side plate 11 be formed so as to increase the rigidity while maintaining the rigidity of the side plate 11, but only the side plate 11 can be formed. Thus, the airbag module E can be stably assembled and supported.
[0017]
In the seat back B, as shown in FIG. 3, a side cover member 30 serving as a side gusset in which the break portion 5 having a predetermined length L 1 accompanying the expansion of the airbag e 2 covers the side pad portion 20 of the cushion pad 2 is provided. It is provided in the sewing line with the bank cover material 31 covering the bank pad portion 21. The broken portion 5 is a side cover for the front skin portions 31 and 32 sewn in a predetermined three-dimensional shape from the bank cover material 31 and the seat surface cover material 32 covering the seat pad portion 22 of the cushion pad 2. It is formed by selecting the thickness of the thread for sewing the material 30 around the three sides of the skin portions 31 and 32.
[0018]
Specifically, as shown in FIG. 4, the side cover material 30 is sewn between the terminals around the three sides of the skin portions 31 and 32 from the upper and lower sewing threads 50 including a thin thread having a large count on at least one side. As the sewing thread 50, a thick thread of about 8 counts and a thin thread of about 20 counts may be selected as upper and lower sewing threads.
[0019]
In addition, except for the accommodation portion of the airbag module E corresponding to the predetermined length L 1 described above, at least the upper and lower sides L 2 and L 3 of the side cover member 30 from the upper and lower sewing threads 51a of the count are placed on the front skin portion. Double stitching between 31, 32 and the terminal. As the sewing thread 51a, a thick and strong thread of about 5 or 8 that is usually used may be used for the upper and lower sewing threads.
[0020]
According to the sewing, the seat cover 3 is pressed with the upper and lower sewing threads 50 including thin yarns of a large count only, and is strongly pressed by the expansion of the airbag e 2 to cause thread breakage, resulting in a predetermined length L 1 . It can be formed as a fracture portion 5.
[0021]
It should be noted that the sewing portion with a small count thread may be further double-sewn with the thick and strong sewing threads 51a and 51b having different counts of about 5 or 8 described above. Further, depending on one of the small count sewing threads 51a and 51b, all of the remaining portions of the side cover member 30 and the three sides of the skin portions 31 and 32 may be sewn, except for the accommodation portion of the airbag module E. it can.
[0022]
In order to suspend and fix the seat skin 3, as shown in FIG. 1, the terminal of the side cover member 30 that covers the side pad portion 20 of the cushion pad 2 and the bank that covers the bank pad portion 21 of the cushion pad 2. It is good to suspend and fix the terminal sewing part of the seat surface cover material 22 which covers the cover material 31 and the seat surface pad part 22 to the seat back frame 1 with the suspending members 6a and 6b made of metal wires.
[0023]
According to the metal wire made of hanging narrowing member 6a, 6b, can be firmly Tsukomi fastened to strongly pull holding the side cover member 30 and the seat surface covering material 31 so as to counteract the inflation of the airbag e 2. Therefore, it is possible to reliably break open with a broken part 5 of the seat skin 3 to the inflation of the airbag e 2.
[0024]
Among them, as shown in FIG. 5, the side cover member 30 is suspended by sewing the end of the side cover member 30 into a bag shape, and forming a plurality of notches 30b at regular intervals along the longitudinal direction of the tip of the bag portion 30a. In addition, as the suspension member 6a, it is possible to use a member in which a plurality of retaining rings 60b in which the axis of the metal wire 60a is bent in a U-shape are provided in correspondence with the notches 30b of the side cover member 30. it can. In the configuration, the bag portion 30a may be sewn with a sewing thread 52 of about No. 5, which is smaller in count than the other portions.
[0025]
The suspending member 6a is configured such that each latch ring 60b of the metal wire 60a protrudes outward from the cutout portion 30b of the bag portion 30a and is entirely inserted into the bag portion 30a to thereby form the bag portion of the side cover member 30. Assemble to 30a. In this suspending member 6a, a U-shaped hooking ring 60b is engaged with a protruding piece 13b of a zigzag spring stopper 13a attached and fixed to the longitudinal axis portion 10a (only one side is shown) of the seat back frame 1. The end of the side cover member 30 can be suspended and fixed to the seat back frame 1.
[0026]
On the other hand, as shown in FIG. 5, a hanging bag 61a is co-sewn at the terminal sewing portion of the bank cover material 31 and the seat surface cover material 32, and a linear listing wire 61b is inserted into the hanging bag 61a. Let it be prepared. Further, as the hanging member 6b, it is possible to use a wisdom ring-shaped latching ring 62a, 62b formed by bending at both ends of the metal wire 62c.
[0027]
In this suspension member 6b, the latch ring 62a on one end side is latched on the listing wire 61b of the suspension bag 61a, and the latch ring 62b on the other end side is coupled to the seat back frame 1 through the suspension hole 24 of the cushion pad 2. .. Can be suspended and fixed to the seat back frame 1 by hooking on any of the zigzag springs 14a, 14b... Even in this hanging structure, the hanging bag 61a may be sewn with a thick and strong sewing thread 53 of about No. 5, which is smaller in both the upper and lower parts than the other parts.
[0028]
In the seat skin 3, the side cover member 30 covering at least the side pad portion 20 of the cushion pad 2 including the airbag module E may be formed of a backing material 3 c having a tensile strength such as tricot. At the same time, the bank cover material 31 may be formed of a similar backing material 3c having a tensile strength such as tricot.
[0029]
According to its cover member, a metal wire made of hanging narrowing member 6a, with 6b, because it opposes the expansion of the airbag e 2, can be reliably breaking open the rupture portion 5 by the expansion of the airbag e 2 moreover complicated cover material Can be prevented from being broken into pieces.
[0030]
As shown in FIG. 7, the sheet skin 3 can be provided with the bead 7 by co-sewing the side cover member 30 and the bank cover member 31 at the sewing portion. In this case, the ball edge 7 is tentatively sewn with the terminals on the three sides of the front skin portions 31 and 32 and the upper and lower thick and strong sewing threads 54, and further includes the above-mentioned thin yarns with a large count. The side cover member 30 may be sewn between the terminals around the three sides of the skin portions 31 and 32 from the sewing thread 50.
[0031]
When the bead 7 is sewn in this manner, the bead 7 is strongly sewn on the front skin portions 31 and 32 side, so that the bead 7 is covered with the skin portion 31 as the airbag e 2 expands. , 32 is left attached to the terminal side, and the stepped portion 5 expands between the side cover 30. Therefore, the side cover member 30 can be greatly expanded without being restricted by the edge 7. Further, the front skin portions 31 and 32 can be opposed by the rigidity of the bead 7 as the airbag e 2 expands, and even if formed using a normal cover material, it can be prevented from being complicatedly cut. it can.
[0032]
【The invention's effect】
As described above, according to the airbag module built-in sheet according to the present invention, as the airbag inflates, the rim is left on the terminal side of the front skin part and the stepped part is between the side skin. Since it spreads out, the side skin can be expanded greatly without being restricted by the bead. Further, the front skin portion can be countered by the rigidity of the bead as the airbag expands, and even if formed using a normal cover material, it can be prevented from being complicatedly cut.
[Brief description of the drawings]
FIG. 1 is a partial cross-sectional view showing a seat with a built-in airbag module of the present invention.
FIG. 2 is a perspective view showing a seat back frame of the airbag module built-in seat.
FIG. 3 is an overall perspective view showing the airbag module built-in sheet.
FIG. 4 is a partial perspective view showing a seat skin of the airbag module built-in sheet from the inner surface side.
FIG. 5 is an explanatory view showing a suspended structure of the seat skin on the terminal side of the side skin.
FIG. 6 is an explanatory view showing a suspension structure of the seat skin by a bank surface skin, a seat surface skin, and a sewing part.
FIG. 7 is an explanatory view showing a sewn structure with a bead on the seat cover.
[Explanation of symbols]
B Seatback E Airbag module 1 Seatback frame 2 Cushion pad 3 Seat skin 30 Side skin 31 Bank surface skin 32 Seat surface skin 5 Breaking portion 50 Sewing threads 51a and 51b including a large count thread Small count sewing thread 54 Small count sewing thread 7 Ball edge

Claims (1)

エアバックモジュールをシートバックの片側側部内に装備し、且つ、シート表皮の側面表皮と土手表皮との縫着ラインを所定長さの破断部として形成するエアバックモジュール内蔵シートにおいて、
土手表皮と座面表皮とから所定の立体形状に縫製された前面の表皮部に対し、玉縁を該表皮部の三辺回り端末に番手の小さい上下の縫い糸で縫着するのに加えて、大きい番手の糸を少なくとも片側に含む上下の縫い糸から側面表皮を玉縁と共に該表皮部の三辺回りに端末間で縫着し、更に、エアバックモジュールの収容個所を除き、少なくとも該エアバックモジュールの収容個所より連続する側面表皮の上下寄りを番手の小さい上下の縫い糸で該表皮部と端末間で二重縫いした破断部を設けてなることを特徴とするエアバックモジュール内蔵シート。
In the airbag module built-in seat in which the airbag module is installed in one side portion of the seat back, and the sewing line between the side surface skin of the seat skin and the bank skin is formed as a rupture portion having a predetermined length,
In addition to the front skin part sewn in a predetermined three-dimensional shape from the bank skin and the seat surface skin, in addition to sewing the ball edge to the terminal around the three sides of the skin part with small upper and lower sewing threads, The upper and lower sewing threads containing at least one yarn of a large count are sewn to the side skins around the three sides of the outer skin part together with the bead between the terminals, and at least the airbag module is excluded except for the accommodation part of the airbag module. A seat with a built-in airbag module, characterized in that a broken portion is formed by double-sewing between the skin portion and the terminal with a small upper and lower sewing thread on the upper and lower sides of the side skin continuous from the housing portion.
JP30586796A 1996-10-31 1996-10-31 Airbag module built-in seat Expired - Fee Related JP3731075B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30586796A JP3731075B2 (en) 1996-10-31 1996-10-31 Airbag module built-in seat

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Application Number Priority Date Filing Date Title
JP30586796A JP3731075B2 (en) 1996-10-31 1996-10-31 Airbag module built-in seat

Publications (2)

Publication Number Publication Date
JPH10129392A JPH10129392A (en) 1998-05-19
JP3731075B2 true JP3731075B2 (en) 2006-01-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP30586796A Expired - Fee Related JP3731075B2 (en) 1996-10-31 1996-10-31 Airbag module built-in seat

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3738561B2 (en) * 1998-07-06 2006-01-25 マツダ株式会社 Car side airbag device
DE10334644B4 (en) * 2003-07-28 2008-04-30 Johnson Controls Gmbh Process for processing a textile fabric, fabric, cover and device, in particular vehicle seat

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