JP2002166809A - Vehicle interior material with weakened line for airbag deployment - Google Patents
Vehicle interior material with weakened line for airbag deploymentInfo
- Publication number
- JP2002166809A JP2002166809A JP2000362893A JP2000362893A JP2002166809A JP 2002166809 A JP2002166809 A JP 2002166809A JP 2000362893 A JP2000362893 A JP 2000362893A JP 2000362893 A JP2000362893 A JP 2000362893A JP 2002166809 A JP2002166809 A JP 2002166809A
- Authority
- JP
- Japan
- Prior art keywords
- interior material
- weakened line
- line portion
- mark
- 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.)
- Granted
Links
Landscapes
- Air Bags (AREA)
- Instrument Panels (AREA)
Abstract
(57)【要約】
【課題】樹脂成形された内装材１に、後加工で、エアバ
ッグ展開用の弱化線部３を形成するものにおいて、弱化
線部３が適正な位置に形成されているか否かを計測器具
を用いずに簡単に確認できるようにする。
【解決手段】内装材１の裏面に、弱化線部３の形成位置
の許容範囲を目視確認可能な目印部９を内装材１の樹脂
成形時に形成する。
(57) [Problem] To form a weakened line portion 3 for deploying an airbag in a resin-molded interior material 1 by post-processing, if the weakened line portion 3 is formed at an appropriate position. Whether or not it can be easily confirmed without using a measuring instrument. A mark portion (9) on the back surface of an interior material (1), which allows the user to visually confirm the allowable range of the formation position of the weakened line portion (3), is formed at the time of resin molding of the interior material (1).
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、裏側にエアバッグ
装置を装着するステアリングハンドルカバーやインスト
ルメントパネルといった樹脂製の車両用内装材に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin interior material for a vehicle such as a steering handle cover or an instrument panel on which an airbag device is mounted on the back side.
【０００２】[0002]
【従来の技術】この種の内装材には、エアバッグ展開時
に破断するエアバッグ展開用弱化線部が形成されてい
る。ここで、弱化線部を内装材の樹脂成形工程で形成す
ると、内装材の表面側にひび割れを生じ易く体裁を損な
う。そのため、従来、内装材の樹脂成形後に、加熱刃や
レーザにより後加工で弱化線部を形成するものが知られ
ている（特開平４−１５１３４５号公報、特開平８−２
８２４２０号公報、特開２０００−３３８４４号公報等
参照）。2. Description of the Related Art An interior material of this type is formed with an airbag deployment weakening line which breaks when the airbag is deployed. Here, if the weakened line portion is formed in the resin molding process of the interior material, cracks are easily generated on the surface side of the interior material, and the appearance is impaired. For this reason, it has been conventionally known to form a weakened line portion by post-processing using a heating blade or a laser after resin molding of an interior material (Japanese Patent Application Laid-Open Nos. 4-151345 and 8-2).
No. 82420, JP-A-2000-33844, etc.).
【０００３】[0003]
【発明が解決しようとする課題】弱化線部はエアバッグ
装置の装着位置に合わせた適正な位置に形成する必要が
あり、上記の如く後加工で弱化線部を形成する場合に
は、品質管理上、弱化線部が適正な位置に形成されてい
るか否かの確認が要求される。そのため、高価な計測器
具を用いて、弱化線部の位置計測を行っており、コスト
アップや工数アップを招いていた。The weakened line portion must be formed at an appropriate position in accordance with the mounting position of the airbag device, and when forming the weakened line portion by post-processing as described above, quality control is required. In addition, it is required to confirm whether the weakened line portion is formed at an appropriate position. For this reason, the position of the weakened line portion is measured using an expensive measuring instrument, resulting in an increase in cost and man-hour.
【０００４】本発明は、以上の点に鑑み、弱化線部が適
正な位置に形成されているか否かを計測器具を用いずに
簡単に確認し得るようにした車両用内装材を提供するこ
とを課題としている。The present invention has been made in view of the above circumstances, and provides an interior material for a vehicle which can easily confirm whether or not a weakened line portion is formed at an appropriate position without using a measuring instrument. Is an issue.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決すべく、
本発明は、樹脂で成形される車両用内装材であって、樹
脂成形後に後加工で形成した、エアバッグ展開時に破断
する弱化線部を有するものにおいて、内装材の裏面に、
弱化線部の形成位置の許容範囲を目視確認可能な、樹脂
成形時に形成した目印部を備えている。Means for Solving the Problems In order to solve the above problems,
The present invention is a vehicle interior material formed of resin, which is formed by post-processing after resin molding, and has a weakened line portion that breaks when an airbag is deployed, on the back surface of the interior material,
A mark portion formed at the time of resin molding is provided so that the allowable range of the formation position of the weakened line portion can be visually confirmed.
【０００６】本発明によれば、内装材の裏面の目印部を
基準にして、弱化線部が許容範囲内、即ち、適正な位置
に形成されているか否かを目視確認でき、計測器具を用
いての弱化線部の位置計測工程が不要になる。また、内
装材の樹脂成形時に目印部を形成するため、成形後にプ
リント等で目印部を形成するものと異なり、弱化線部の
形成位置の許容範囲に対する目印部の位置ずれを生ずる
おそれがなく、目印部の位置ずれによる誤判断を防止で
きる。According to the present invention, it is possible to visually confirm whether or not the weakened line portion is formed within an allowable range, that is, at an appropriate position with reference to the mark portion on the back surface of the interior material. This eliminates the need for the step of measuring the position of all weakened lines. Also, since the mark portion is formed at the time of resin molding of the interior material, unlike the case where the mark portion is formed by printing or the like after molding, there is no possibility that a displacement of the mark portion with respect to the allowable range of the formation position of the weakened line portion occurs, It is possible to prevent erroneous determination due to displacement of the mark portion.
【０００７】また、前記許容範囲内の部分とそれ以外の
部分とで肉厚差を付けて前記目印部を構成すれば、レー
ザで弱化線部を加工する場合、弱化線部が許容範囲から
逸脱すると、肉厚差により加工時間が変わるため、弱化
線部が許容範囲内に形成されたか否かを加工時間によっ
ても判別することができる。Further, if the mark portion is formed by providing a thickness difference between the portion within the allowable range and the other portion, when the weakened line portion is processed with a laser, the weakened line portion deviates from the allowable range. Then, since the processing time changes depending on the thickness difference, it is possible to determine whether or not the weakened line portion is formed within the allowable range based on the processing time.
【０００８】尚、内装材が表皮を有しないものである場
合、肉厚差を付けると、肉厚差に起因するひけが内装材
の表面に現れ、外観不良を生ずる。そのため、このよう
な表皮レスの内装材では、内装材の裏面の前記許容範囲
内の部分にそれ以外の部分とは異なる地模様を付して前
記目印部を構成することが望ましい。In the case where the interior material has no skin, if a difference in wall thickness is applied, sink marks due to the difference in wall thickness appear on the surface of the interior material, resulting in poor appearance. Therefore, in such a skinless interior material, it is desirable to form the mark portion by attaching a ground pattern different from that of the other portion to the portion within the allowable range on the back surface of the interior material.
【０００９】[0009]
【発明の実施の形態】図１を参照して、１はインストル
メントパネルから成る車両用内装材を示す。内装材１に
は、その裏側に装着したエアバッグ装置２に正対する領
域の輪郭及び該領域を２分する中心線に沿う弱化線部３
が形成されており、エアバッグ展開時に弱化線部３が破
断し、弱化線部３で囲われる部分が１対のリッド４，４
となって開放されるようにしている。また、内装材１の
裏面に、各リッド４をその外側の内装材１の部分に連結
するヒンジプレート５を取付け、エアバッグ展開時にリ
ッド４が飛散することを防止している。尚、内装材１に
は、エアバッグ装置２に正対する領域を囲うようにして
第１固定プレート６と、該領域の中心線の両側に位置さ
せて１対の第２固定プレート７，７とが埋設されてお
り、これら各固定プレート６，７に内装材１の裏面に突
出するボルト６ａ，７ａを植設し、第１固定プレート６
に植設したボルト６ａによりエアバッグ装置２と各ヒン
ジプレート５の外側縁部とを内装材１に固定し、各第２
固定プレート７に植設したボルト７ａにより各ヒンジプ
レート５の内側縁部を各リッド４に固定している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, reference numeral 1 denotes an interior material for a vehicle comprising an instrument panel. The interior material 1 has a contour of a region facing the airbag device 2 mounted on the back side thereof and a weakened line portion 3 along a center line that divides the region into two.
Are formed, and when the airbag is deployed, the weakened line portion 3 is broken, and the portion surrounded by the weakened line portion 3 is a pair of lids 4 and 4.
So that it is open. In addition, a hinge plate 5 that connects each lid 4 to a portion of the interior material 1 on the outside thereof is attached to the back surface of the interior material 1 to prevent the lid 4 from scattering when the airbag is deployed. The interior material 1 includes a first fixing plate 6 surrounding a region facing the airbag device 2 and a pair of second fixing plates 7 and 7 positioned on both sides of a center line of the region. Are embedded. Bolts 6a, 7a protruding from the back surface of the interior material 1 are implanted in these fixing plates 6, 7, and the first fixing plate 6,
The airbag device 2 and the outer edge of each hinge plate 5 are fixed to the interior material 1 by bolts 6a planted in
The inner edge of each hinge plate 5 is fixed to each lid 4 by bolts 7 a planted in the fixing plate 7.
【００１０】内装材１は、裏面側の樹脂製基材１ａと、
中間の発泡層１ｂと、樹脂製表皮１ｃとの３層構造にな
っいてる。内装材１の製造に際しては、基材１ａと表皮
１ｃとを夫々樹脂成形した後、図２（Ａ）に示す如く、
樹脂成形工程で基材１ａに形成したボルト孔８にボルト
６ａ，７ａを挿通して第１と第２の固定プレート６，７
を基材１ａにセットし、この状態で表皮１ｃと基材１ａ
とを型内にセットし、表皮１ｃと基材１ａとの間に発泡
樹脂を注入して発泡させることにより発泡層１ｂを形成
する。このようにして内装材１の成形を完了した後、図
２（Ｂ）に示す如く内装材１に弱化線部３をその途中に
未加工部分３ａを残して形成し、最後に、内装材１の裏
面にボルト６ａ，７ａを用いて図２（Ｃ）に示す如く１
対のヒンジプレート５，５とエアバッグ装置２とを取付
ける。The interior material 1 includes a resin base material 1a on the back side,
It has a three-layer structure of an intermediate foam layer 1b and a resin skin 1c. At the time of manufacturing the interior material 1, after the base material 1a and the skin 1c are each resin-molded, as shown in FIG.
Bolts 6a, 7a are inserted into bolt holes 8 formed in the base material 1a in the resin molding step, and the first and second fixing plates 6, 7 are inserted.
Is set on the base material 1a, and the skin 1c and the base material 1a are set in this state.
Is set in a mold, and a foamed resin is injected between the skin 1c and the base material 1a to foam the foamed layer 1b. After the completion of the molding of the interior material 1 in this manner, as shown in FIG. 2B, the weakened line portion 3 is formed on the interior material 1 while leaving the unprocessed portion 3a in the middle. As shown in FIG. 2 (C), bolts 6a and 7a
The pair of hinge plates 5 and 5 and the airbag device 2 are mounted.
【００１１】図３は弱化線部３の加工設備を示してい
る。この加工設備は、内装材１を保持するハンドリング
ロボット１００と、ＣＯ2 レーザ発振器１０１と、レー
ザ発振器１０１からのレーザをミラー１０２を介して入
射する固定式レーザ照射ヘッド１０３とを備えており、
内装材１をその裏面にレーザ照射ヘッド１０３からのレ
ーザが照射されるように保持し、この状態でレーザ照射
ヘッド１０３が内装材１に対し弱化線部３を形成すべき
所定の軌跡に沿って一定速度で移動するようにハンドリ
ングロボット１００で内装材１をレーザ照射ヘッド１０
３に対し相対移動させる。図中１０４はメインコントロ
ーラであり、ハンドリングロボット１００のロボットコ
ントローラ１０５からメインコントローラ１０４に起動
信号が入力された後、メインコントローラ１０４から図
４に示す如く一定時間間隔でトリガパルスを発生させ、
トリガパルスによりフリップフロップ１０６とレーザコ
ントローラ１０７とを介してレーザ発振器１０１を作動
させる。FIG. 3 shows processing equipment for the weakened line portion 3. This processing equipment includes a handling robot 100 that holds the interior material 1, a CO 2 laser oscillator 101, and a fixed laser irradiation head 103 that receives a laser from the laser oscillator 101 via a mirror 102.
The interior material 1 is held on its back surface so that the laser from the laser irradiation head 103 is irradiated. In this state, the laser irradiation head 103 moves along the predetermined trajectory to form the weakened line portion 3 with respect to the interior material 1. The interior material 1 is moved by the laser irradiation head 10 by the handling robot 100 so as to move at a constant speed.
3 relative movement. In the figure, reference numeral 104 denotes a main controller. After a start signal is input from the robot controller 105 of the handling robot 100 to the main controller 104, the main controller 104 generates a trigger pulse at regular time intervals as shown in FIG.
The laser oscillator 101 is operated via the flip-flop 106 and the laser controller 107 by the trigger pulse.
【００１２】また、レーザ照射ヘッド１０３に対し内装
材１を挟んで対向する受光センサ１０８を設け、受光セ
ンサ１０８の出力信号を比較器１０９に入力して、受光
センサ１０８の出力信号が所定レベルに上昇したとき、
比較器１０９から中断信号たるハイレベルの信号が発生
され、この信号でフリップフロップ１０６の出力信号を
反転させ、レーザコントローラ１０７によりレーザ発振
器１０１の作動を停止させる。かくて、トリガパルスに
同期してレーザ照射ヘッド１０３から内装材１にレーザ
が照射され、内装材１の材料が裏側から焼失して最終的
に表皮１ｃに孔が明き、受光センサ１０８にこの孔を通
してレーザが到達して、該センサ１０８の出力信号が所
定レベルに上昇したところで次のトリガバルスが発生さ
れるまでレーザ照射が中断される。そのため、内装材１
に、図５に示すように、深さが周期的に変化する弱化線
部３が形成される。尚、受光センサ１０８の出力信号が
所定レベルに上昇した時点からレーザ照射が停止される
までには若干の応答遅れがあり、その間に表皮１ｃの孔
が大きくなるが、前記所定レベルはミクロンオーダの孔
が明いたときのレベルに設定されており、応答遅れで孔
径が大きくなっても目視できる程の大きさにはならず、
内装材１の外観を損うことはない。また、レーザコント
ローラ１０７は、トリガパルスによりフリップフロップ
１０６からハイレベルの駆動信号が入力されたとき、当
初はレーザ出力を大きくしその後レーザ出力を下げるよ
うに機能し、上記応答遅れで表皮１ｃに大きな孔が明く
ことを防止している。また、ハンドリングロボット１０
０の動作途中でトリガパルスの発生が一定期間停止され
るようになっており、この期間に対応する部分が未加工
部分３ａとして残される。A light receiving sensor 108 is provided to face the laser irradiation head 103 with the interior material 1 interposed therebetween, and an output signal of the light receiving sensor 108 is input to a comparator 109 so that the output signal of the light receiving sensor 108 is set to a predetermined level. When it rises,
The comparator 109 generates a high-level signal as an interruption signal, inverts the output signal of the flip-flop 106 with this signal, and causes the laser controller 107 to stop the operation of the laser oscillator 101. Thus, the laser is irradiated from the laser irradiation head 103 to the interior material 1 in synchronization with the trigger pulse, the material of the interior material 1 is burned from the back side, and finally a hole is made in the skin 1c. When the laser reaches through the hole and the output signal of the sensor 108 rises to a predetermined level, the laser irradiation is interrupted until the next trigger pulse is generated. Therefore, interior material 1
Then, as shown in FIG. 5, a weakened line portion 3 whose depth changes periodically is formed. Note that there is a slight response delay from when the output signal of the light receiving sensor 108 rises to a predetermined level to when the laser irradiation is stopped, during which the hole in the skin 1c becomes larger. It is set to the level when the hole is clear, and it does not become visible enough even if the hole diameter increases due to response delay,
The appearance of the interior material 1 is not impaired. Further, when a high-level drive signal is input from the flip-flop 106 by a trigger pulse, the laser controller 107 functions to increase the laser output at first and then reduce the laser output. Prevents holes from opening. The handling robot 10
The generation of the trigger pulse is stopped for a certain period during the operation of 0, and a portion corresponding to this period is left as an unprocessed portion 3a.
【００１３】ところで、ハンドリングロボット１００の
誤動作や、ハンドリングロボット１００に対する内装材
１の位置ずれ等により、弱化線部３が適正な位置からず
れて形成されたり、未加工部分３ａの位置がずれること
がある。そのため、品質管理上、弱化線部３や未加工部
分３ａが適正な位置に形成されているか否かを確認する
ことが必要になる。By the way, due to malfunction of the handling robot 100, misalignment of the interior material 1 with respect to the handling robot 100, etc., the weakened line portion 3 is formed to be shifted from an appropriate position, or the position of the unprocessed portion 3a is shifted. is there. Therefore, in quality control, it is necessary to confirm whether the weakened line portion 3 and the unprocessed portion 3a are formed at appropriate positions.
【００１４】そこで、本実施形態では、内装材１の裏
面、即ち、基材１ａの裏面に、弱化線部３の形成位置の
許容範囲を目視確認可能な第１の目印部９と、未加工部
分３ａの位置の許容範囲を目視確認可能な第２の目印部
１０とを基材１ａの樹脂成形時に形成している。これを
図６（Ａ）（Ｂ）を参照して詳述するに、弱化線部３の
形成位置の許容範囲内の部分の肉厚をそれ以外の部分の
肉厚より薄くして、溝状の第１の目印部９を形成し、ま
た、未加工部分３ａとして残すべき弱化線部３の長手方
向の各位置に、目印部９の幅方向両側に位置させて、突
起から成る各１対の第２目印部１０，１０を形成してい
る。かくて、弱化線部３の加工後、第１と第２の目印部
９，１０を基準にして、弱化線部３と未加工部分３ａと
が夫々許容範囲内に形成されているか否かを目視で簡単
に確認することができる。Therefore, in the present embodiment, a first mark portion 9 on the back surface of the interior material 1, that is, the back surface of the base material 1a, for visually confirming the allowable range of the formation position of the weakened line portion 3, and an unprocessed portion. The second mark portion 10 for visually confirming the allowable range of the position of the portion 3a is formed at the time of resin molding of the base material 1a. This will be described in detail with reference to FIGS. 6 (A) and 6 (B). The thickness of the portion within the allowable range of the formation position of the weakened line portion 3 is made thinner than the thickness of the other portions, and the groove-shaped portion is formed. The first mark 9 is formed, and each pair of protrusions is located at each position in the longitudinal direction of the weakened line portion 3 to be left as the unprocessed portion 3a on both sides in the width direction of the mark 9. Are formed. Thus, after the processing of the weakened line portion 3, it is determined whether or not the weakened line portion 3 and the unprocessed portion 3a are each formed within the allowable range with reference to the first and second mark portions 9 and 10. It can be easily confirmed visually.
【００１５】また、第１目印部９を本実施形態の如く他
部より薄肉の溝状に形成すれば、弱化線部３の形成位置
が第１目印部９から外れたとき、肉厚が増すため、トリ
ガパルスの発生時点から受光センサ１０８の出力信号が
所定レベルに達して比較器１０９の信号がハイレベルの
中断信号に切り換わるまでの時間ｔが長くなる。そのた
め、メインコントローラ１０４に比較器１０９からの信
号を入力し、トリガパルスの発生時点から比較器１０９
から中断信号が発生されるまでにかかった加工時間ｔを
計測すれば、加工時間ｔに基づいて弱化線部３が第１目
印部９、即ち、許容範囲から逸脱したか否かを判別でき
る。図７はそのための制御プログラムを示しており、先
ず、Ｓ１のステップで加工時間ｔを計測し、次に、Ｓ２
のステップで加工時間ｔが第１目印部９の肉厚に合わせ
て設定した所定の上限値ｔmax を上回ったか否かを判別
し、ｔ＞ｔmax のときは、Ｓ３のステップで不良と診断
して以後の加工を中止する。ｔ≦ｔmax であれば、Ｓ４
のステップで弱化線部３の加工が完了したか否かを判別
し、完了していなければ、Ｓ１のステップに戻って上記
の処理を繰り返し、１回もｔ＞ｔmax とならずに加工を
完了したとき、Ｓ５のステップで合格と診断する。If the first mark portion 9 is formed in a groove shape thinner than the other portions as in this embodiment, the wall thickness increases when the formation position of the weakened line portion 3 deviates from the first mark portion 9. Therefore, the time t from when the trigger pulse is generated to when the output signal of the light receiving sensor 108 reaches a predetermined level and the signal of the comparator 109 switches to the high-level interruption signal becomes longer. Therefore, the signal from the comparator 109 is input to the main controller 104, and the comparator 109 is input from the time when the trigger pulse is generated.
By measuring the processing time t required until the interruption signal is generated from, it is possible to determine whether or not the weakened line portion 3 has deviated from the first mark portion 9, ie, the allowable range, based on the processing time t. FIG. 7 shows a control program for this purpose. First, the machining time t is measured in step S1, and
It is determined whether or not the processing time t has exceeded a predetermined upper limit value tmax set in accordance with the thickness of the first mark portion 9 in the step (2). Subsequent processing is stopped. If t ≦ tmax, S4
It is determined whether or not the processing of the weakened line portion 3 has been completed in step S. If it has not been completed, the processing returns to step S1, and the above processing is repeated. Then, it is diagnosed as pass in step S5.
【００１６】尚、弱化線部３の形成位置の許容範囲内の
部分の肉厚をそれ以外の部分の肉厚より厚くして、第１
目印部９を凸状に形成することも可能であり、この場合
は、加工時間ｔが所定の下限値を下回ったときに不良と
診断する。The thickness of the portion within the permissible range of the formation position of the weakened line portion 3 is made thicker than the thickness of the other portions, so that the first
It is also possible to form the mark portion 9 in a convex shape. In this case, when the processing time t falls below a predetermined lower limit value, it is diagnosed as defective.
【００１７】また、上記実施形態では、第２目印部１０
を半球状の突起で構成したが、図８（Ａ）（Ｂ）に示す
如く、リブ状の突起で第２目印部１０を構成しても良
い。また、このものでは、弱化線部３の形成位置の許容
範囲の幅方向両側に小突起を列設し、これら小突起で第
１目印部９を構成している。In the above embodiment, the second mark 10
Are constituted by hemispherical projections, but as shown in FIGS. 8A and 8B, the second mark portion 10 may be constituted by rib-shaped projections. In this case, small projections are arranged in a row on both sides in the width direction of the allowable range of the formation position of the weakened line portion 3, and these small projections constitute the first mark portion 9.
【００１８】ところで、内装材１には、発泡層１ｂ及び
表皮１ｃを省略した単層構造のものもあり、このような
内装材１では、肉厚差を付けて第１や第２の目印部９，
１０を形成すると、肉厚差に起因するひけが内装材１の
表面に現れ、外観不良を生ずる。そのため、単層構造の
内装材１では、その裏面の弱化線部の形成許容範囲内の
部分と、未加工部分の許容範囲の幅方向両側の部分と
に、夫々、それ以外の部分とは異なる地模様、例えば、
図９に示すような梨地模様を付し、第１と第２の各目印
部９，１０を構成することが望ましい。The interior material 1 may have a single-layer structure in which the foam layer 1b and the skin 1c are omitted. In such an interior material 1, the first and second mark portions are provided with a thickness difference. 9,
When 10 is formed, sink marks due to the difference in wall thickness appear on the surface of the interior material 1, resulting in poor appearance. Therefore, in the interior material 1 having the single-layer structure, the portion within the allowable range of the weakened line portion on the back surface and the portions on both sides in the width direction of the allowable range of the unprocessed portion are respectively different from other portions. Ground pattern, for example,
It is desirable to form the first and second mark portions 9 and 10 with a satin pattern as shown in FIG.
【００１９】以上、インストルメントパネルから成る内
装材１に本発明を適用した実施形態について説明した
が、ステアリングハンドルカバーといった他の車両用内
装材にも同様に本発明を適用できる。Although the embodiment in which the present invention is applied to the interior material 1 composed of the instrument panel has been described above, the present invention can be similarly applied to other vehicle interior materials such as a steering handle cover.
【００２０】[0020]
【発明の効果】以上の説明から明らかなように、本発明
によれば、弱化線部が適正な位置に形成されているか否
かを目視で簡単に確認でき、計測器具を用いての位置計
測工程が不要となり、コストダウンを図れる。As is apparent from the above description, according to the present invention, whether or not the weakened line portion is formed at an appropriate position can be easily visually confirmed, and the position can be measured using a measuring instrument. The process becomes unnecessary, and the cost can be reduced.
【図１】エアバッグ装置を装着した状態の内装材の断面
図。FIG. 1 is a cross-sectional view of an interior material in a state where an airbag device is mounted.
【図２】（Ａ）内装材の基材に対する固定プレートの組
付工程を示す斜視図、（Ｂ）弱化線部の加工工程を示す
斜視図、（Ｃ）エアバッグ装置とヒンジプレートの組付
工程を示す斜視図。2A is a perspective view showing a process of assembling a fixing plate to a base material of an interior material, FIG. 2B is a perspective view showing a process of processing a weakened line portion, and FIG. 2C is an assembly of an airbag device and a hinge plate. The perspective view which shows a process.
【図３】弱化線部の加工設備の概略側面図。FIG. 3 is a schematic side view of processing equipment for a weakened line portion.
【図４】弱化線部の加工工程における各種信号の変化を
示すタイムチャート。FIG. 4 is a time chart showing changes in various signals in a processing step of a weakened line portion.
【図５】弱化線部の長手方向に沿った拡大断面図。FIG. 5 is an enlarged sectional view along a longitudinal direction of a weakened line portion.
【図６】（Ａ）第１実施形態の内装材の裏面図、（Ｂ）
図６（Ａ）のVIＢ−VIＢ線拡大断面図。FIG. 6A is a rear view of the interior material according to the first embodiment, and FIG.
FIG. 7 is an enlarged sectional view taken along line VIB-VIB of FIG.
【図７】弱化線部の位置ずれを判別するための制御プロ
グラムを示すフローチャート。FIG. 7 is a flowchart showing a control program for determining a displacement of a weakened line portion.
【図８】（Ａ）第２実施形態の内装材の裏面図、（Ｂ）
図８（Ａ）のVIIIＢ−VIIIＢ線拡大裁断面図。FIG. 8A is a rear view of the interior material according to the second embodiment, and FIG.
The VIIIB-VIIIB line enlarged sectional view of FIG. 8 (A).
【図９】第３実施形態の内装材の裏面図。FIG. 9 is a back view of the interior material of the third embodiment.
１…内装材 ２…エアバッグ装置 ３…弱化線部 ９…目印部 DESCRIPTION OF SYMBOLS 1 ... Interior material 2 ... Airbag device 3 ... Weak line part 9 ... Mark part
───────────────────────────────────────────────────── フロントページの続き (72)発明者 竹熊 秀史 埼玉県狭山市新狭山１丁目10番地１ ホン ダエンジニアリング株式会社内 (72)発明者 伊賀上 光隆 埼玉県狭山市新狭山１丁目10番地１ ホン ダエンジニアリング株式会社内 (72)発明者 磯貝 一雄 埼玉県狭山市新狭山１丁目10番地１ ホン ダエンジニアリング株式会社内 Ｆターム(参考） 3D044 BA07 BA11 BA12 BB01 BC03 BC13 BC15 3D054 AA13 AA14 BB01 BB08 BB23 FF17 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hidefumi Takekuma 1-10-1 Shinsayama, Sayama City, Saitama Prefecture Honda Engineering Co., Ltd. (72) Inventor Mitsutaka Igagami 1-10-1 Shinsayama, Sayama City, Saitama Prefecture Honda Engineering Co., Ltd. (72) Inventor Kazuo Isogai 1-10-1, Shinsayama, Sayama City, Saitama Prefecture Honda Engineering Co., Ltd. F term (reference) 3D044 BA07 BA11 BA12 BB01 BC03 BC13 BC15 3D054 AA13 AA14 BB01 BB08 BB23 FF17
Claims (3)
て、樹脂成形後に後加工で形成した、エアバッグ展開時
に破断する弱化線部を有するものにおいて、 内装材の裏面に、弱化線部の形成位置の許容範囲を目視
確認可能な、樹脂成形時に形成した目印部を備えること
を特徴とするエアバッグ展開用弱化線部を有する車両用
内装材。1. An interior material for a vehicle, which is formed of resin and has a weakened line portion formed by post-processing after resin molding and breaking when an airbag is deployed, wherein a weakened line portion is provided on a back surface of the interior material. An interior material for a vehicle having a weakened line portion for deploying an airbag, comprising a mark portion formed at the time of resin molding, which allows visually confirming an allowable range of a formation position of the airbag.
とで肉厚差を付けて前記目印部を構成することを特徴と
する請求項１に記載のエアバッグ展開用弱化線部を有す
る車両用内装材。2. The airbag deployment weakening line portion according to claim 1, wherein the mark portion is formed by providing a thickness difference between a portion within the allowable range and another portion. Interior materials for vehicles.
それ以外の部分とは異なる地模様を付して前記目印部を
構成することを特徴とする請求項１に記載のエアバッグ
展開用弱化線部を有する車両用内装材。3. The airbag deployment according to claim 1, wherein a portion of the back surface of the interior material within the allowable range is provided with a ground pattern different from other portions to form the mark portion. Interior materials for vehicles that have a weakening line for the vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000362893A JP4173626B2 (en) | 2000-11-29 | 2000-11-29 | Method for forming weakened wire portion for airbag deployment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000362893A JP4173626B2 (en) | 2000-11-29 | 2000-11-29 | Method for forming weakened wire portion for airbag deployment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002166809A true JP2002166809A (en) | 2002-06-11 |
| JP4173626B2 JP4173626B2 (en) | 2008-10-29 |
Family
ID=18834092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000362893A Expired - Fee Related JP4173626B2 (en) | 2000-11-29 | 2000-11-29 | Method for forming weakened wire portion for airbag deployment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4173626B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006095699A1 (en) * | 2005-03-07 | 2006-09-14 | Honda Motor Co., Ltd. | Interior material and laser beam processing method for the same |
| JP2006240567A (en) * | 2005-03-07 | 2006-09-14 | Honda Motor Co Ltd | Interior material and laser beam processing method thereof |
| JP2006239763A (en) * | 2005-03-07 | 2006-09-14 | Honda Motor Co Ltd | Laser beam processing method for interior materials |
| JP2006239765A (en) * | 2005-03-07 | 2006-09-14 | Honda Motor Co Ltd | Laser processing method for interior materials |
| DE102006003684A1 (en) * | 2006-01-24 | 2007-07-26 | Jenoptik Automatisierungstechnik Gmbh | A method of creating a frangible line in a multilayer airbag cover using a laser |
| CN113561453A (en) * | 2021-06-30 | 2021-10-29 | 东风延锋汽车饰件系统有限公司 | Automatic detection error-proofing device for instrument panel female die skin weakening line and using method thereof |
-
2000
- 2000-11-29 JP JP2000362893A patent/JP4173626B2/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006095699A1 (en) * | 2005-03-07 | 2006-09-14 | Honda Motor Co., Ltd. | Interior material and laser beam processing method for the same |
| JP2006240567A (en) * | 2005-03-07 | 2006-09-14 | Honda Motor Co Ltd | Interior material and laser beam processing method thereof |
| JP2006239763A (en) * | 2005-03-07 | 2006-09-14 | Honda Motor Co Ltd | Laser beam processing method for interior materials |
| JP2006239765A (en) * | 2005-03-07 | 2006-09-14 | Honda Motor Co Ltd | Laser processing method for interior materials |
| GB2438562A (en) * | 2005-03-07 | 2007-11-28 | Honda Motor Co Ltd | Interior material and laser beam processing method for the same |
| US7770916B2 (en) | 2005-03-07 | 2010-08-10 | Honda Motor Co., Ltd. | Interior material and laser beam processing method for the same |
| GB2438562B (en) * | 2005-03-07 | 2010-08-18 | Honda Motor Co Ltd | Interior material and laser beam processing method for the same |
| DE102006003684A1 (en) * | 2006-01-24 | 2007-07-26 | Jenoptik Automatisierungstechnik Gmbh | A method of creating a frangible line in a multilayer airbag cover using a laser |
| CN113561453A (en) * | 2021-06-30 | 2021-10-29 | 东风延锋汽车饰件系统有限公司 | Automatic detection error-proofing device for instrument panel female die skin weakening line and using method thereof |
| CN113561453B (en) * | 2021-06-30 | 2023-04-25 | 东风延锋汽车饰件系统有限公司 | Automatic detection and error prevention device for the skin weakening line of the female mold of the instrument panel and its application method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4173626B2 (en) | 2008-10-29 |
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