JPH01141145A - Plastic knee protector and manufacture thereof - Google Patents
Plastic knee protector and manufacture thereofInfo
- Publication number
- JPH01141145A JPH01141145A JP62298194A JP29819487A JPH01141145A JP H01141145 A JPH01141145 A JP H01141145A JP 62298194 A JP62298194 A JP 62298194A JP 29819487 A JP29819487 A JP 29819487A JP H01141145 A JPH01141145 A JP H01141145A
- Authority
- JP
- Japan
- Prior art keywords
- core
- resin
- core material
- knee protector
- reinforcing material
- 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
- 210000003127 knee Anatomy 0.000 title claims abstract description 49
- 230000001012 protector Effects 0.000 title claims abstract description 46
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 239000011347 resin Substances 0.000 claims abstract description 57
- 229920005989 resin Polymers 0.000 claims abstract description 57
- 239000012779 reinforcing material Substances 0.000 claims abstract description 28
- 239000000835 fiber Substances 0.000 claims abstract description 22
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 20
- 238000000465 moulding Methods 0.000 claims abstract description 6
- 239000011162 core material Substances 0.000 claims description 46
- 239000004620 low density foam Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000005187 foaming Methods 0.000 abstract 2
- 230000003014 reinforcing effect Effects 0.000 description 7
- 239000004744 fabric Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 239000006260 foam Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010097 foam moulding Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- -1 polyesterol Chemical compound 0.000 description 1
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
- B60R21/04—Padded linings for the vehicle interior ; Energy absorbing structures associated with padded or non-padded linings
- B60R21/045—Padded linings for the vehicle interior ; Energy absorbing structures associated with padded or non-padded linings associated with the instrument panel or dashboard
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、自動車用装備品としての樹脂製ニープロテク
タ−およびその製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a resin knee protector as an automobile accessory and a method for manufacturing the same.
（従来の技術）
従来、自動車においては、前部座席の前方にニープロテ
クタ−がインストルメントパネル等に組付けて装備され
るようになっている。このニープロテクタ−は、通常、
ウレタンやポリエステロール等の熱硬化性樹脂によって
形成されているが、自動車の衝突時に乗員の膝が当たっ
たときでもその衝撃に対して充分に抗し得る剛性が必要
である。(Prior Art) Conventionally, in automobiles, a knee protector has been installed in front of the front seat by being attached to an instrument panel or the like. This knee protector is usually
Although it is made of a thermosetting resin such as urethane or polyesterol, it needs to have enough rigidity to withstand the impact even when a passenger's knee hits it during a car crash.
このため、樹脂製ニープロテクタ−の肉厚を厚くしたり
、あるいはニープロテクタ−の裏面側に金属製の補強材
を設けて補強するようになされている。For this reason, the thickness of the resin knee protector is increased, or a metal reinforcing material is provided on the back side of the knee protector for reinforcement.
（発明が解決しようとする問題点）
ところが、上記従来の樹脂製ニープロテクタ−は、その
構成自体によって重量がかなり大きいという欠点があり
、車体の軽量化を図るために、充分な剛性を確保しつつ
ニープロテクタ−の重量を可及的に小さくしたいという
要請がある。(Problems to be Solved by the Invention) However, the above-mentioned conventional resin knee protector has the drawback of being quite heavy due to its structure, and in order to reduce the weight of the vehicle body, it is necessary to ensure sufficient rigidity. At the same time, there is a desire to reduce the weight of the knee protector as much as possible.
一方、−船釣な樹脂製品において、その剛性を高めるた
めに、例えば特開昭６０−４８３１５号公報に開示され
るように、繊維布状補強材を設けてなるものは知られて
いる。しかし、樹脂製ニープロテクタ−において、樹脂
材の肉厚を厚くすることなく、単にこの繊維布状補強材
を設けただけのものでは、ニープロテクタ−としての充
分な剛性を確保することはできない。On the other hand, in order to increase the rigidity of resin products for fishing boats, it is known that a fiber cloth-like reinforcing material is provided, as disclosed in, for example, Japanese Patent Application Laid-Open No. 60-48315. However, in a resin knee protector, if the fiber cloth-like reinforcing material is simply provided without increasing the thickness of the resin material, sufficient rigidity as a knee protector cannot be ensured.
本発明はかかる点に鑑みてなされたものであり、その第
１の目的とするところは、上記の繊維布状補強材の利用
と共に樹脂材の断面係数が高くなる構造を用いることに
より、軽量でかつ剛性の高い樹脂製ニープロテクタ−を
提供せんとするものである。The present invention has been made in view of these points, and its first objective is to achieve lightweight construction by utilizing the above-mentioned fiber cloth-like reinforcing material and using a structure in which the section modulus of the resin material is high. It is also an object of the present invention to provide a resin knee protector with high rigidity.
また、本発明の第２の目的は、この樹脂製ニープロテク
タ−を製造するに当たって、繊維布状補強材がその補強
効果を有効に発揮し得るよう最適な製造方法を提供する
ものである。A second object of the present invention is to provide an optimal manufacturing method for manufacturing this resin knee protector so that the fibrous cloth-like reinforcing material can effectively exhibit its reinforcing effect.
（問題点を解決するための手段）
上記目的を達成するため、本発明の解決手段は、樹脂製
ニープロテクタ−として、低密度発泡体よりなる芯材と
、該芯材の表面に設けられた繊維布状補強材と、該繊維
布状補強材を介在して上記芯材を覆うように該芯材と一
体成形された熱硬化性樹脂とによって構成するものであ
る。(Means for solving the problem) In order to achieve the above object, the solving means of the present invention is a resin knee protector that includes a core material made of a low-density foam and a core material provided on the surface of the core material. It is composed of a fiber cloth-like reinforcing material and a thermosetting resin integrally molded with the core material so as to cover the core material with the fiber cloth-like reinforcing material interposed therebetween.
また、樹脂製ニープロテクタ−の製造方法としては、低
密度発泡体よりなる芯材の表面に繊維布状補強材を貼り
付けた後、この芯材を型内にセットし、続いて、型内の
芯材周りに熱硬化性樹脂を注入充填して成形する構成と
するものである。In addition, the method for manufacturing resin knee protectors is to attach a fiber cloth-like reinforcing material to the surface of a core material made of low-density foam, then set this core material in a mold, and then The structure is such that thermosetting resin is injected and molded around the core material.
（作用）
上記の構成により、本発明の樹脂製ニープロテクタ−で
は、熱硬化性樹脂は、芯材を覆って設けられていて断面
的に見て厚み方向に芯材の厚み分厚くなっているので、
その断面係数はかなり高いものとなる。このため、熱硬
化性樹脂と芯材との間に介在された繊維布状補強材によ
る補強効果と相俟って、ニープロテクタ−としての十分
な剛性が確保される。しかも、上記芯材は低密度発泡体
という重量の軽いものであるため、この芯材の付加によ
ってニープロテクタ−の重量が増加することはほとんど
なく、その軽量化を図ることができる。(Function) With the above configuration, in the resin knee protector of the present invention, the thermosetting resin is provided to cover the core material, and the thickness of the core material becomes thicker in the thickness direction when viewed in cross section. ,
Its section modulus is quite high. Therefore, together with the reinforcing effect of the fibrous cloth-like reinforcing material interposed between the thermosetting resin and the core material, sufficient rigidity as a knee protector is ensured. Moreover, since the core material is a low-density foam that is light in weight, the addition of the core material hardly increases the weight of the knee protector, and the weight of the knee protector can be reduced.
また、本発明の樹脂製ニープロテクタ−の製造方法では
、型内の芯材周りに熱硬化性樹脂を注入充填する際、繊
維布状補強材は予め芯材の表面に貼り付けられているの
で、この繊維布状補強材が樹脂によって芯材の表面上に
偏りたりすることはない。このため、繊維布状補強材が
芯材と樹脂との間に所定通りに介在され、その補強効果
を効果的に発揮できることになる。Furthermore, in the method for manufacturing a resin knee protector of the present invention, when injecting and filling the thermosetting resin around the core material in the mold, the fiber cloth-like reinforcing material is pasted on the surface of the core material in advance. This fibrous cloth-like reinforcing material will not be biased on the surface of the core material by the resin. Therefore, the fiber cloth-like reinforcing material is interposed between the core material and the resin in a predetermined manner, and its reinforcing effect can be effectively exhibited.
（実施例） 以下、本発明の実施例を図面に基づいて説明する。(Example) Embodiments of the present invention will be described below based on the drawings.
第１図ないし第４図は本発明の一実施例に係わる樹脂製
ニープロテクタ−Ａ、Ｂを示し、このニープロテクタ−
Ａ、Ｂは、インストルメントパネルＣの下部表面の一部
分を構成するものとして運転席又は助手席に対応して該
インストルメントパネルＣに組み付けられている。尚、
二つのニープロテクタ−Ａ、Ｂは、形状を異にするもの
の、構造的には全く同じであり、以下のニープロテクタ
−の構造の説明においては、運転席に対応する側のニー
プロテクタ−Ａについてのみ説明する。1 to 4 show resin knee protectors A and B according to an embodiment of the present invention.
A and B constitute a part of the lower surface of the instrument panel C and are assembled to the instrument panel C in correspondence with the driver's seat or the passenger's seat. still,
Although the two knee protectors A and B have different shapes, they are structurally exactly the same, and in the explanation of the structure of the knee protector below, we will focus on the knee protector A on the side corresponding to the driver's seat. I will only explain.
上記ニープロテクタ−Ａは、第１図および第２図に示す
ように、芯材１と、該芯材１の表面に設けられた繊維布
状補強材２と、該繊維布状補強材２を介在して芯材１を
覆って該芯材１と一体成形された熱硬化性樹脂３によっ
て構成されている。As shown in FIGS. 1 and 2, the above-mentioned knee protector A includes a core material 1, a fiber cloth-like reinforcing material 2 provided on the surface of the core material 1, and a fiber cloth-like reinforcing material 2 provided on the surface of the core material 1. It is composed of a thermosetting resin 3 that is interposed and integrally molded with the core material 1 so as to cover the core material 1 .
上記芯材１は、低密度発泡体（例えば硬質ウレタンフオ
ーム、ＰＰ５ＰＥ等のビーズ発泡フオーム等）よりなり
、軽量でかつある程度の剛性を有するものである。また
、上記繊維布状補強材２は、具体的にはガラス繊維等よ
りなり、上記熱硬化性樹脂３はＲＩＭウレタン、ポリエ
ステロール、イソシアヌレート等よりなる。The core material 1 is made of a low-density foam (for example, hard urethane foam, bead foam such as PP5PE, etc.), and is lightweight and has a certain degree of rigidity. Further, the fiber cloth reinforcing material 2 is specifically made of glass fiber or the like, and the thermosetting resin 3 is made of RIM urethane, polyesterol, isocyanurate, or the like.
尚、上記芯材１は、適宜箇所に貫通孔４，４゜・・・を
冑しており、その貫通孔４，４．・・・にも熱硬化性樹
脂３が充填成形されてリブ５，５．・・・を構成してい
る。また、６はニープロテクタ−Ａの裏面側に植設され
たニープロテクタ−取付は用のボスであって、該ボス６
は、熱硬化性樹脂３に比べてネジ切り加工等が容易な靭
性に優れたＰＰ、ＡＢＳ等の軟質性樹脂により形成され
ている。The core material 1 has through holes 4, 4°, etc. formed at appropriate locations, and the through holes 4, 4. The thermosetting resin 3 is also filled and molded to form the ribs 5, 5. It consists of... Further, 6 is a boss for attaching the knee protector, which is implanted on the back side of the knee protector A.
is made of a soft resin such as PP, ABS, etc., which has excellent toughness and is easier to thread, etc. than the thermosetting resin 3.
次に、上記樹脂製ニープロテクタ−Ａの製造方法を、第
５図を参照しつつ説明する。Next, a method for manufacturing the resin knee protector A will be explained with reference to FIG. 5.
先ず、発泡成形法によって低密度発泡体よりなる芯材１
を、第５図（ａ）に示すように所定の形状に形成する。First, a core material 1 made of a low-density foam is formed using a foam molding method.
is formed into a predetermined shape as shown in FIG. 5(a).
続いて、この芯材１の表面に、第５図（ｂ）に示すよう
に、繊維布状補強材２をタッカ−や接着剤等により貼り
付ける。Subsequently, as shown in FIG. 5(b), a fibrous cloth-like reinforcing material 2 is attached to the surface of the core material 1 using a tacker, adhesive, or the like.
しかる後、上記芯材１を、第５図（ｃ）に示すような樹
脂成形型りの上型ｄ１および下型ｄ２のいずれか一方に
その型面から所定寸法歪した状態で取付はビン等により
固定してセットするとともに、上記上型ｄ１の所定位置
に樹脂製ニープロテクタ−取付は用ボス５，５．・・・
を係合してセットする。次いで、上記樹脂成形型りの型
締めをした後、その型内（上型ｄ１と下型ｄ２との間の
キャビティー内）の芯材１周りに高圧注入機Ｅから熱硬
化性樹脂３を注入充填して成形する。この際、繊維布状
補強材２は、芯材１の表面に予め貼り付けられているの
で、注入される樹脂３によって芯材１表面上に偏ったり
、剥がれたりすることはない。Thereafter, the core material 1 is mounted on either the upper mold d1 or the lower mold d2 of a resin molding mold as shown in FIG. 5(c) with a predetermined amount of distortion from the mold surface. At the same time, the resin knee protector is fixed and set at the predetermined position of the upper mold d1 using the bosses 5, 5. ...
engage and set. Next, after the resin molding mold is clamped, a thermosetting resin 3 is injected from a high-pressure injection machine E around the core material 1 inside the mold (inside the cavity between the upper mold d1 and the lower mold d2). Injection filling and molding. At this time, since the fiber cloth-like reinforcing material 2 is pasted on the surface of the core material 1 in advance, it will not be biased on the surface of the core material 1 or peeled off by the injected resin 3.
続いて、上記樹脂成形型りの型開きをして成形されたニ
ープロテクタ−Ａを取出した後、該ニープロテクタ−Ａ
に対してパリ取り加工などを施す。Subsequently, after opening the resin molding mold and taking out the molded knee protector A, the knee protector A is removed.
A process such as deburring is applied to the surface.
以上によって、第１図ないし第３図に示すような樹脂製
ニープロテクタ−Ａが得られる。Through the above steps, a resin knee protector A as shown in FIGS. 1 to 3 is obtained.
そして、このように製造された樹脂製ニープロテクタ−
Ａにおいては、熱硬化性樹脂３が芯材１を覆って設けら
れていて厚み方向に芯材１の厚み分波がった状態にある
ので、その断面係数はかなり高いものとなる。このため
、熱硬化性樹脂３と芯材１との間に介在された繊維布状
補強材２による補強効果と相俟って、ニープロテクタ−
としての十分な剛性が確保される。しかも、上記繊維布
状補強材２は、樹脂成形型りに対する樹脂の注入の際に
芯材１の表面上に偏ったりするのが防止されるようにな
っているので、その補強効果を所定通りに充分発揮する
ことができ、ニープロテクタ−Ａの剛性を確実に高める
ことができる。And the resin knee protector manufactured in this way
In A, the thermosetting resin 3 is provided to cover the core material 1 and is curved in the thickness direction by the thickness of the core material 1, so its section modulus is quite high. Therefore, together with the reinforcing effect of the fiber cloth-like reinforcing material 2 interposed between the thermosetting resin 3 and the core material 1, the knee protector
Sufficient rigidity is ensured. Moreover, the fiber cloth-like reinforcing material 2 is prevented from being biased on the surface of the core material 1 when resin is injected into the resin mold, so that the reinforcing effect can be maintained as specified. The rigidity of the knee protector A can be improved reliably.
その上、上記芯材１は低密度発泡体という重量の軽いも
のであるため、この芯材１の付加によってニープロテク
タ−Ａの重量が増加することはほとんどなく、その軽量
化を図ることができる。Moreover, since the core material 1 is a light material made of low-density foam, the addition of the core material 1 hardly increases the weight of the knee protector-A, making it possible to reduce its weight. .
（発明の効果）
以上の如く、本発明の樹脂製ニープロテクタ−によれば
、熱硬化性樹脂は繊維布状補強材を介在して低密度発泡
体よりなる芯材を覆って設けられていて、その断面係数
が高くなっているので、繊維布状補強材による補強効果
と相俟って、ニープロテクタ−としての充分な剛性を確
保することができるとともに、その軽量化を図ることが
できるものである。(Effects of the Invention) As described above, according to the resin knee protector of the present invention, the thermosetting resin is provided to cover the core material made of low-density foam with the fiber cloth-like reinforcing material interposed therebetween. Since its section modulus is high, together with the reinforcing effect of the fiber cloth reinforcement, it is possible to ensure sufficient rigidity as a knee protector and also to reduce its weight. It is.
また、本発明の樹脂製ニープロテクタ−の製造方法によ
れば、型内の芯材周りに樹脂を注入する際繊維布状補強
材が予め芯材に貼り付けられていてその偏りが確実に防
止されるので、樹脂と芯材との間に介在される繊維布状
補強材の補強効果を有効に発揮することができ、る。In addition, according to the method for manufacturing a resin knee protector of the present invention, when resin is injected around the core material in the mold, the fiber cloth-like reinforcing material is attached to the core material in advance, thereby reliably preventing the unevenness of the reinforcing material. Therefore, the reinforcing effect of the fiber cloth reinforcing material interposed between the resin and the core material can be effectively exhibited.
図面は本発明の実施例を示すもので、第１図は第３図の
Ｘ−Ｘ線における拡大断面図、第２図はインストルメン
トパネルに対する樹脂製ニープロテクタ−の取付は部分
における第１図相当図、第３図はニープロテクタ−の斜
視図、第４図はインストルメントパネルに対して樹脂製
ニープロテクタ−を組付けた状態を示す斜視図であり、
第５図は樹脂製ニープロテクタ−の製造方法を説明する
ための製造工程図である。
Ａ、 Ｂ・・・樹脂側ニープロテクタ−１１・・・芯
材、２・・・繊維布状補強材、３・・・熱硬化性樹脂。
特 許 出 願 人 西川化成株式会社代 理
人 前 １） 弘第１図 第２図
第４図
第３図The drawings show an embodiment of the present invention, and FIG. 1 is an enlarged cross-sectional view taken along the line X-X of FIG. 3, and FIG. 2 shows a portion of FIG. FIG. 3 is a perspective view of the knee protector, and FIG. 4 is a perspective view showing the resin knee protector assembled to the instrument panel.
FIG. 5 is a manufacturing process diagram for explaining a method of manufacturing a resin knee protector. A, B...Resin side knee protector-11... Core material, 2... Fiber cloth reinforcement material, 3... Thermosetting resin. Patent applicant Agent: Nishikawa Kasei Co., Ltd.
In front of people 1) Hiroshi Figure 1 Figure 2 Figure 4 Figure 3
Claims (2)
けられた繊維布状補強材と、該繊維布状補強材を介在し
て上記芯材を覆うように該芯材と一体成形された熱硬化
性樹脂とからなることを特徴とする樹脂製ニープロテク
ター。(1) A core material made of a low-density foam; a fibrous cloth-like reinforcing material provided on the surface of the core material; A resin knee protector characterized by being made of integrally molded thermosetting resin.
材を貼り付けた後、この芯材を型内にセットし、続いて
、型内の芯材周りに熱硬化性樹脂を注入充填して成形す
ることを特徴とする樹脂製ニープロテクターの製造方法
。(2) After pasting a fiber cloth-like reinforcing material on the surface of a core material made of low-density foam, this core material is set in a mold, and then a thermosetting resin is applied around the core material in the mold. A method for manufacturing a resin knee protector, characterized by injection filling and molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62298194A JPH01141145A (en) | 1987-11-26 | 1987-11-26 | Plastic knee protector and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62298194A JPH01141145A (en) | 1987-11-26 | 1987-11-26 | Plastic knee protector and manufacture thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01141145A true JPH01141145A (en) | 1989-06-02 |
| JPH0411086B2 JPH0411086B2 (en) | 1992-02-27 |
Family
ID=17856434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62298194A Granted JPH01141145A (en) | 1987-11-26 | 1987-11-26 | Plastic knee protector and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01141145A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1046548A1 (en) * | 1999-04-22 | 2000-10-25 | TRW Occupant Restraint Systems GmbH & Co. KG | Knee protection device in a vehicle |
| US6431600B1 (en) | 1999-04-22 | 2002-08-13 | Trw Occupant Restraint Systems Gmbh & Co. Kg | Knee restraint device for vehicles |
| US6988971B2 (en) * | 2002-09-25 | 2006-01-24 | Tsubakimoto Chain Co. | Tensioner lever |
| JP2007245367A (en) * | 2006-03-13 | 2007-09-27 | Matsushita Denko Bath & Life Kk | Resin molded product and its manufacturing method |
| CN106314346A (en) * | 2015-07-01 | 2017-01-11 | 现代自动车株式会社 | Knee protection structure for vehicle |
-
1987
- 1987-11-26 JP JP62298194A patent/JPH01141145A/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1046548A1 (en) * | 1999-04-22 | 2000-10-25 | TRW Occupant Restraint Systems GmbH & Co. KG | Knee protection device in a vehicle |
| US6431600B1 (en) | 1999-04-22 | 2002-08-13 | Trw Occupant Restraint Systems Gmbh & Co. Kg | Knee restraint device for vehicles |
| US6988971B2 (en) * | 2002-09-25 | 2006-01-24 | Tsubakimoto Chain Co. | Tensioner lever |
| JP2007245367A (en) * | 2006-03-13 | 2007-09-27 | Matsushita Denko Bath & Life Kk | Resin molded product and its manufacturing method |
| CN106314346A (en) * | 2015-07-01 | 2017-01-11 | 现代自动车株式会社 | Knee protection structure for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0411086B2 (en) | 1992-02-27 |
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