JP2547121B2 - Rear seat airbag device - Google Patents
Rear seat airbag deviceInfo
- Publication number
- JP2547121B2 JP2547121B2 JP2293190A JP29319090A JP2547121B2 JP 2547121 B2 JP2547121 B2 JP 2547121B2 JP 2293190 A JP2293190 A JP 2293190A JP 29319090 A JP29319090 A JP 29319090A JP 2547121 B2 JP2547121 B2 JP 2547121B2
- Authority
- JP
- Japan
- Prior art keywords
- seat
- airbag
- airbag device
- seat back
- rear seat
- 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
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
- B60R21/01554—Seat position sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R2021/0002—Type of accident
- B60R2021/0004—Frontal collision
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R2021/23153—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for rear seat passengers
-
- 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
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、後席用エアバッグ装置に関し、更に詳細に
説明すると、前席のシートバックの背面側に装着した後
席用エアバッグ装置に関する。Description: TECHNICAL FIELD The present invention relates to a rear seat airbag device, and more specifically, to a rear seat airbag device mounted on the back side of a front seat back. .
従来より、車両等の後部座席乗員の保護装置として例
えば実公昭51−35730号公報に記載されているエアバッ
グ装着用シートが知られている。2. Description of the Related Art Conventionally, as a protection device for an occupant in a rear seat of a vehicle or the like, for example, an airbag mounting seat described in Japanese Utility Model Publication No. 51-35730 is known.
この従来例は、前席のシートバックが後席乗員の２次
衝撃反力によってシートバック下部を中心として回転し
た場合、エアバッグの展開方向は適確に後席乗員を拘束
できるようにエアバッグ装着部をシートバックに対して
折れ曲げ可能に構成し、この装着部を前記中心と異なる
を中心に回動し得る連結棒で連結した構成を有してい
る。In this conventional example, when the seat back of the front seat rotates around the lower part of the seat back due to the secondary impact reaction force of the rear seat occupant, the airbag deploying direction can accurately restrain the rear seat occupant. The mounting portion is configured to be bendable with respect to the seat back, and has a configuration in which the mounting portion is connected by a connecting rod that can rotate about a center different from the center.
〔発明が解決しようとする課題〕 然し乍ら、従来のエアバッグ装着用シートにおいては
シートバックに平行リンク機構を設けて中折れするよう
に構成されているため、このエアバッグ装着用シートに
乗員が着座してリクライニング機構を作動させたとき
に、着座姿勢が不自然となると共に、後部座席乗員とエ
アバッグ装置との距離が変化してエアバッグ装置の後席
乗員拘束性能が損なわれたり、平行リンク機構の強度や
ガタが問題となる欠点を有するものであった。[Problems to be Solved by the Invention] However, in the conventional airbag mounting seat, the seat back is provided with the parallel link mechanism so as to be bent in the middle, so that the occupant is seated on the airbag mounting seat. When the reclining mechanism is operated, the seating posture becomes unnatural, and the distance between the rear seat occupant and the airbag device changes, impairing the rear occupant restraint performance of the airbag device, and the parallel linkage. It had a drawback that the strength and play of the mechanism became a problem.
また後席に乗員または着座者が存在しない場合に後席
用エアバッグ装置を作動させるのは無駄であり、また不
必要に車室内圧を上昇させるもので、乗員または着座者
の鼓膜等を損傷させる虞れを有するものであった。In addition, it is useless to operate the airbag device for the rear seat when there is no passenger or occupant in the rear seat, and it also unnecessarily raises the passenger compartment pressure, damaging the eardrum of the occupant or the seated person. There was a risk of causing it.
本発明の目的は、後席乗員に対するエアバッグ装置の
拘束性能を確実に満足させることができ、また後席に着
座者が存在しない場合には衝撃感知センサが衝撃を感知
してもエアバッグ装置を無駄に作動させることがなく、
不必要に車室内圧を上昇させることのない安全性及び経
済性に優れた後席用エアバッグ装置を提供するものであ
る。An object of the present invention is to surely satisfy the restraint performance of the airbag device for the occupant in the rear seat, and even when the seating occupant is not present in the rear seat, the airbag device can detect the shock. Without wasting
(EN) Provided is a rear-seat airbag device which is excellent in safety and economy without unnecessarily increasing the vehicle interior pressure.
本発明は上述せる課題に鑑みてなされたもので、前席
のシートバックの背面側に装着した後席用エアバッグ装
置において、前記エアバッグ装着座席のシートバックの
傾斜角度が所定の許容範囲の角度範囲内であることを検
出するシートバックの傾斜角度検出装置と、前記エアバ
ック装着座席の後部側座席の着座者を検出する着座セン
サとを備え、前記シートバックの傾斜角度検出装置によ
りシートバックの傾斜角度が所定の許容範囲の角度範囲
内でオン状態となるシートポジションスイッチと、前記
着座センサの着座信号によりオン状態となる着座スイッ
チとが前記エアバッグ装置の電源系統に直列に介挿され
ていることを特徴とする。The present invention has been made in view of the above-described problems, and in a rear seat airbag device mounted on the back side of a front seat back, the inclination angle of the seat back of the airbag mounting seat is within a predetermined allowable range. A seat back inclination angle detecting device for detecting that the seat back is within an angular range, and a seating sensor for detecting a seated person on the rear seat of the airbag-equipped seat, and the seat back inclination angle detecting device is used. A seat position switch that is turned on within an angle range of a predetermined allowable range and a seating switch that is turned on by a seating signal of the seating sensor are inserted in series in the power supply system of the airbag device. It is characterized by
本発明に依れば、エアバッグ装着座席の後席に着座者
が存在しない場合及びエアバッグ装着座席のシートバッ
クが所定の許容範囲の角度範囲内でない場合にはシート
ポジションスイッチ及び着座スイッチとオン状態となら
ず、衝撃感知センサが衝撃を感知した状態であっても後
席用エアバッグ装置のガス発生器が作動せず、無駄に後
席用エアバッグ装置を作動させることがなく不必要な車
室内圧の上昇を防止できるものである。According to the present invention, the seat position switch and the seating switch are turned on when there is no seated person in the rear seat of the airbag-equipped seat and when the seat back of the airbag-equipped seat is not within the angle range of the predetermined allowable range. The gas generator of the rear seat airbag device does not operate even if the shock detection sensor detects a shock, and unnecessary operation of the rear seat airbag device is unnecessary. It is possible to prevent an increase in vehicle interior pressure.
以下本発明に係る後席用エアバッグ装置を図面を参照
して詳述する。Hereinafter, a rear seat airbag device according to the present invention will be described in detail with reference to the drawings.
第１図乃至第３図には本発明の一実施例の概略が夫々
示されており、車両用前部シート１はシートクッション
２とその後端側に立設されているシートバック３等とで
構成されている。そして、シートバック３は、周知の通
りベース７及びこれに回動軸支部８にて軸支されるアー
ム９からなるリクライニング機構６を介してシートクッ
ション２側に連結支持されている。前記リクライニング
機構６としては、電動モータ等によるパワーリクライニ
ングデバイスを採用することもできる。1 to 3 respectively show an outline of one embodiment of the present invention. A vehicle front seat 1 includes a seat cushion 2 and a seat back 3 standing upright on the rear end side. It is configured. As is well known, the seat back 3 is connected and supported to the seat cushion 2 side via a reclining mechanism 6 including a base 7 and an arm 9 pivotally supported by a pivot shaft supporting portion 8. As the reclining mechanism 6, a power reclining device such as an electric motor can be adopted.
シートバック３の背面側には、エアバッグ装置11が設
けられている。このエアバッグ装置11は、第２図に示す
ように、シートバックフレームに取付けられるベースプ
レート12と、このベースプレート12に固着されたガス発
生器13と、このガス発生器13の作動により膨出するエア
バッグ本体14とを備えている。An airbag device 11 is provided on the back side of the seat back 3. As shown in FIG. 2, the airbag device 11 includes a base plate 12 attached to a seat back frame, a gas generator 13 fixed to the base plate 12, and air swelled by the operation of the gas generator 13. And a bag body 14.
また、エアバッグ装着座席としての車両用前部シート
１の後方側には車両用後部シート21が配設され、この車
両用後部シート21はシートクッション22とその後端側に
立設されているシートバック23とを備えており、前部シ
ート１のエアバッグ装置11と対向するシートクッション
22に着座者を検出する例えば感圧素子等で構成される着
座センサ24が配設されている。尚、着座センサ24として
は前部シート１のシートバック３背面等に組み込んだ光
センサ等を用いることができる。Further, a vehicle rear seat 21 is disposed on the rear side of the vehicle front seat 1 serving as an airbag mounting seat, and the vehicle rear seat 21 is erected on a seat cushion 22 and a rear end side thereof. A seat cushion that includes a back 23 and faces the airbag device 11 of the front seat 1.
A seating sensor 24, which is composed of, for example, a pressure-sensitive element or the like, for detecting a seated person is provided at 22. As the seating sensor 24, an optical sensor or the like incorporated in the back of the seat back 3 of the front seat 1 or the like can be used.
前記前部シート１のシートバック３は、第１図に示す
如く、垂直線Ｙに対して後方に約25゜傾斜する直線θに
沿って配設され、通常の着座状態ではθを中心に前後方
向に約10゜傾斜した直線L1及びL2で示す範囲で用いられ
る。またシートバック３の傾斜角度に対するエアバッグ
装置11の作動の許容範囲としては垂直線Ｙより後方の角
度αの直線L3の範囲が好ましい。As shown in FIG. 1, the seat back 3 of the front seat 1 is arranged along a straight line θ inclined rearward by about 25 ° with respect to the vertical line Y, and in a normal seated state, the seat back 3 is arranged around θ. It is used in the range indicated by straight lines L 1 and L 2 inclined by about 10 ° in the direction. Further, as the allowable range of operation of the airbag device 11 with respect to the inclination angle of the seat back 3, a range of a straight line L 3 having an angle α behind the vertical line Y is preferable.
垂直線Ｙより前方にシートバック３が前傾している場
合には後部シート21の乗員の顔面側にエアバッグ本体14
が膨出し、また直線L3よりシートバック３が後傾してい
る場合には後部シート21の乗員の足元側にエアバッグ本
体14が膨出し、エアバッグ装置11の乗員拘束性能を十分
に発揮し得ないものである。垂直線Ｙと直線L3との角度
αは15゜〜45゜の範囲が好ましい。When the seat back 3 is tilted forward in front of the vertical line Y, the airbag body 14 is attached to the passenger's face side of the rear seat 21.
When the seat back 3 inclines rearward from the straight line L 3 , the airbag body 14 bulges toward the occupant's feet side of the rear seat 21 and the occupant restraint performance of the airbag device 11 is sufficiently exerted. It cannot be done. The angle α between the vertical line Y and the straight line L 3 is preferably in the range of 15 ° to 45 °.
前記シートバック３の傾斜角度が所定の許容範囲の角
度範囲内であることを検出するシートバック３の傾斜角
度検出装置26が設けられ、この傾斜角度検出装置26は回
動軸支部８に設けたロータリーエンコーダ等から形成さ
れ、この傾斜角度検出装置26によりシートバック３の傾
斜角度が所定の角度範囲内であるときオン状態となるシ
ートポジションスイッチ28が設けられている。An inclination angle detecting device 26 for the seat back 3 is provided for detecting that the inclination angle of the seat back 3 is within a predetermined allowable range. The inclination angle detecting device 26 is provided on the rotary shaft support 8. A seat position switch 28 which is formed of a rotary encoder or the like and is turned on when the tilt angle of the seat back 3 is within a predetermined angle range by the tilt angle detection device 26 is provided.
第３図に示す如く、前記エアバッグ装置11のガス発生
器13には車体側に設けられた衝撃感知センサ30を介して
電源31が接続され、このガス発生器13と衝撃感知センサ
30間に直列にシートポジションスイッチ28と、前記着座
センサ24の着座信号によりオン状態となる着座スイッチ
25とが接続されている。尚、前記衝撃感知センサ30は複
数設けられ、これらが直列状態で接続されている。また
シートポジションスイッチ28と衝撃感知センサ30の配設
位置は適宜変更することができる。As shown in FIG. 3, a power source 31 is connected to the gas generator 13 of the airbag device 11 via an impact sensor 30 provided on the vehicle body side, and the gas generator 13 and the impact sensor are connected to each other.
Seat position switch 28 in series between 30 and a seating switch that is turned on by a seating signal of the seating sensor 24
25 and are connected. A plurality of the impact detection sensors 30 are provided, and these are connected in series. Further, the positions of the seat position switch 28 and the impact detection sensor 30 can be changed appropriately.
斯る構成に依れば、エアバッグの電源系統に着座スイ
ッチ25,衝撃感知センサ30が設けられているので、エア
バッグ装着座席の後部側座席に着座者が存在しない場合
には衝撃感知センサ30が衝撃を感知してもこの感知信号
がガス発生器13に伝達されず、またエアバッグ装着座席
としての前部シート１のシートバック３が所定の許容範
囲の角度範囲内でない場合には乗員拘束性能が悪く、エ
アバッグ装置11の作動が乗員に危険をもたらす虞れを有
するのでガス発生器13が作動しない。According to such a configuration, since the seating switch 25 and the impact sensor 30 are provided in the power supply system of the airbag, the impact sensor 30 is installed when no seated person is present in the rear seat of the airbag-equipped seat. Even if the passenger senses an impact, this sensing signal is not transmitted to the gas generator 13, and if the seat back 3 of the front seat 1 as the airbag-equipped seat is not within the predetermined allowable angle range, the occupant is restrained. The gas generator 13 does not operate because the performance is poor and the operation of the airbag device 11 may pose a danger to an occupant.
以上が本発明に係る後席用エアバッグ装置の一実施例
の構成であるが、斯る構成に依れば、シートバックの傾
斜角度が所定の許容範囲の角度範囲内であることを検出
するシートバックの傾斜角度検出装置のシートポジショ
ンスイッチと、後部側座席の着座者を検出する着座セン
サの着座スイッチとが前記エアバッグ装置の電源系統に
直列に介挿されているので、エアバッグ装着座席の後席
に着座者が存在しない場合及びエアバッグ装着座席のシ
ートバッグが所定の許容範囲の角度範囲内でない場合に
はシートポジションスイッチ及び着座スイッチとがオン
状態とならず、衝撃感知センサが衝撃を感知した状態で
あっても後席用エアバッグ装置のガス発生器が作動せ
ず、無駄に後席用エアバッグ装置を作動させることがな
く不必要な車室内圧の上昇を防止でき、また所定の条件
で後席の着座者を確実に拘束保護することができ、安全
性及び経済性に優れた後席用エアバック装置を得ること
ができる。The above is the configuration of the embodiment of the rear seat airbag device according to the present invention. According to such a configuration, it is detected that the inclination angle of the seat back is within a predetermined allowable range. The seat position switch of the seat back tilt angle detection device and the seating switch of the seating sensor for detecting the seated person in the rear seat are inserted in series in the power supply system of the airbag device, so that the airbag-equipped seat is seated. When there is no seated person in the rear seat or when the seat bag of the airbag-equipped seat is not within the angle range of the predetermined permissible range, the seat position switch and the seating switch are not turned on, and the shock sensor detects a shock. The gas generator of the rear seat air bag system does not operate even when the vehicle is detected Can prevent a temperature and a seated person rear seat can be reliably restrained and protected in a predetermined condition, it is possible to obtain an air bag device for a rear seat which is excellent in safety and economy.
第１図乃至第３図は本発明に係る後席用エアバッグ装置
の一実施例の概略を夫々示すもので、第１図は要部の構
成のみを示す側面図、第２図はエアバッグ装置を示す断
面図、第３図は配線図である。 図中、１……車両用前部シート、２……シートクッショ
ン、３……シートバック、６……リクライニング機構、
6a……電動モータ、11……エアバッグ装置、12……ベー
スプレート、13……ガス発生器、14……エアバック本
体、21……車両用後部シート、24……着座センサ、25…
…着座スイッチ、26……傾斜角度検出装置、28……シー
トポジションスイッチ、30……衝撃感知センサ、31……
電源。1 to 3 respectively show an outline of an embodiment of an airbag device for a rear seat according to the present invention. FIG. 1 is a side view showing only the structure of a main part, and FIG. 2 is an airbag. FIG. 3 is a cross-sectional view showing the device, and FIG. 3 is a wiring diagram. In the figure, 1 ... front seat for vehicle, 2 ... seat cushion, 3 ... seat back, 6 ... reclining mechanism,
6a ... Electric motor, 11 ... Airbag device, 12 ... Base plate, 13 ... Gas generator, 14 ... Airbag body, 21 ... Vehicle rear seat, 24 ... Seating sensor, 25 ...
… Seat switch, 26 …… Inclination angle detector, 28 …… Seat position switch, 30 …… Impact sensor, 31 ……
Power supply.
Claims (1)
席用エアバッグ装置において、前記エアバッグ装着座席
のシートバックの傾斜角度が所定の許容範囲の角度範囲
内であることを検出するシートバックの傾斜角度検出装
置と、前記エアバッグ装着座席の後部側座席の着座者を
検出する着座センサとを備え、前記シートバックの傾斜
角度検出装置によりシートバックの傾斜角度が所定の許
容範囲の角度範囲内でオン状態となるシートポジション
スイッチと、前記着座センサの着座信号によりオン状態
となる着座スイッチとが前記エアバッグ装置の電源系統
に直列に介挿されていることを特徴とする後席用エアバ
ッグ装置。1. A rear seat airbag device mounted on the back side of a front seat back detects that the inclination angle of the seat back of the seat equipped with the airbag is within a predetermined allowable range. A seat back inclination angle detection device and a seating sensor for detecting a seated person in the rear seat of the airbag-equipped seat are provided, and the seat back inclination angle detection device detects the seat back inclination angle within a predetermined allowable range. A seat position switch that is turned on within an angular range and a seating switch that is turned on by a seating signal of the seating sensor are inserted in series in a power supply system of the airbag device. Airbag device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2293190A JP2547121B2 (en) | 1990-10-30 | 1990-10-30 | Rear seat airbag device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2293190A JP2547121B2 (en) | 1990-10-30 | 1990-10-30 | Rear seat airbag device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04166456A JPH04166456A (en) | 1992-06-12 |
| JP2547121B2 true JP2547121B2 (en) | 1996-10-23 |
Family
ID=17791589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2293190A Expired - Lifetime JP2547121B2 (en) | 1990-10-30 | 1990-10-30 | Rear seat airbag device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2547121B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3494769B2 (en) * | 1994-12-20 | 2004-02-09 | 株式会社東海理化電機製作所 | Airbag device for passenger or rear seat |
| KR101646349B1 (en) * | 2014-10-07 | 2016-08-08 | 현대자동차주식회사 | Rear seat air-bag apparatus and controlling method thereof for vehicle |
-
1990
- 1990-10-30 JP JP2293190A patent/JP2547121B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04166456A (en) | 1992-06-12 |
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