JPH08310321A - Interior trim equipment for vehicle - Google Patents
Interior trim equipment for vehicleInfo
- Publication number
- JPH08310321A JPH08310321A JP7144053A JP14405395A JPH08310321A JP H08310321 A JPH08310321 A JP H08310321A JP 7144053 A JP7144053 A JP 7144053A JP 14405395 A JP14405395 A JP 14405395A JP H08310321 A JPH08310321 A JP H08310321A
- Authority
- JP
- Japan
- Prior art keywords
- hollow shell
- lattice
- shaped body
- cushioning member
- vehicle interior
- 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
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、アームレストやドアト
リムなどの車両用内装品に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to vehicle interior parts such as armrests and door trims.
【０００２】[0002]
【従来の技術】近年、自動車等の車両では、正面からの
衝突のみならず、側方からの衝突（以下、「側突」とい
う。）についても高い安全性が求められるようになって
きた。自動車等の側突事故時には、側突荷重がアームレ
スト等の内装品を変形，破壊する。内装品は衝撃を弱め
ながらもその荷重を受け止めて二次的な発生荷重を生
み、この発生荷重が大きいと乗員に危害を及ぼす確率も
高くなるとされている。こうしたことから、乗員を守
り、安全性を高める対策がこれまでいくつか講じられて
きた。具体的には、アームレストのような内装品の内側
にウレタン発泡体，発泡ビーズ等の緩衝部材を配設する
ものである（特開平４−２９３６４０号，特開平５−５
１４号公報等）。ところが、この種の緩衝部材は製造コ
ストが高く、また、組付けに手間がかかり生産性に劣っ
ていた。そこで、本発明者は、車両用内装品に組込む緩
衝部材として生産性に優れる格子状体を採用し、これに
側突荷重を吸収させ、コスト低減を図る技術を検討して
きた。2. Description of the Related Art In recent years, vehicles such as automobiles are required to have high safety not only in frontal collisions but also in side collisions (hereinafter referred to as "side collisions"). In the event of a side impact accident such as a car, the side impact load deforms and destroys interior parts such as armrests. It is said that the interior parts receive the load while weakening the impact and generate a secondary generated load, and if this generated load is large, the probability that the occupant will be injured becomes high. For these reasons, some measures have been taken so far to protect the occupants and enhance their safety. Specifically, a cushioning member such as urethane foam or foam beads is arranged inside an interior product such as an armrest (Japanese Patent Laid-Open Nos. 4-293640 and 5-5).
No. 14, etc.). However, this type of cushioning member has a high manufacturing cost, requires a lot of time to assemble, and is inferior in productivity. Therefore, the inventor of the present invention has studied a technique for reducing the cost by adopting a lattice-shaped body having excellent productivity as a cushioning member to be incorporated in a vehicle interior product and absorbing a side impact load in the lattice-shaped body.
【０００３】[0003]
【発明が解決しようとする課題】しかるに、図１１
（イ）のように、格子状体９１を単に緩衝部材９として
中空殻状体の内側に配設するだけだと、側突衝撃Ｇによ
って緩衝部材の変形が進むに伴ない発生荷重Ｆが増加
し、乗員に対する負荷を大きくする場合があった（図１
２（ロ））。乗員の安全確保には、緩衝部材９に衝撃吸
収機能をもたせるのが重要であり、そして、緩衝部材９
の変形量の増加と共に右上がりカーブとなる発生荷重Ｆ
を低い値にとどまらせることが特に重要であるとされて
いる（図１２）。緩衝部材９の変形量が大きな地点で、
発生荷重Ｆの増加割合を抑制するのがポイントであり、
格子状体９１を緩衝部材９として使用しただけでは、十
分な成果が得られなかった。However, as shown in FIG.
If the lattice-shaped body 91 is simply disposed inside the hollow shell-shaped body as the cushioning member 9 as in (a), the load F generated increases as the cushioning member deforms due to the side impact shock G. However, the load on the occupant may be increased (Fig. 1
2 (b)). In order to ensure the safety of the occupant, it is important that the shock absorbing member 9 has a shock absorbing function.
Load F which becomes a curve rising to the right as the amount of deformation of F increases
Is believed to be particularly important (FIG. 12). At the point where the amount of deformation of the cushioning member 9 is large,
The point is to suppress the increase rate of the generated load F,
A sufficient result was not obtained only by using the lattice-shaped body 91 as the buffer member 9.
【０００４】本発明は、上記問題点を解決するもので、
低コストで生産性に富み、側突事故等の衝撃を吸収する
と同時に、吸収しきれない二次的な発生荷重を極力抑え
て、事故発生時の乗員の身体保護を図り安全性確保を実
現した車両用内装品を提供することを目的とする。The present invention solves the above-mentioned problems.
It is low cost, highly productive, absorbs the impact of a side impact accident, and at the same time suppresses the secondary load that cannot be absorbed as much as possible to protect the occupant's body in the event of an accident and ensure safety. It is intended to provide a vehicle interior accessory.
【０００５】[0005]
【課題を解決するための手段】本第一発明の要旨は、取
付面側が開口した中空殻状体の内側に緩衝部材を配設し
てなる車両用内装品において、前記緩衝部材は、複数の
板状体が互いに交差する合成樹脂製の格子状体からなる
と共に、前記交差部の一端に凹状切欠部を有し、該凹状
切欠部が前記中空殻状体の内面に対向するように配設さ
れていることを特徴とする車両用内装品にある。ここ
で、「凹状切欠部」は格子状体の交差部の全てで設けら
れる必要はない。凹状切欠部は交差部全てに設けられる
ことが望ましいが、一部分でも足りる。本第二発明の車
両用内装品は、第一発明で、中空殻状体の内面に対向す
る格子状体の一側に、交差部の凹状切欠部を除き、板状
体を一体に連接する底板が設けられていることを特徴と
する。本第三発明の車両用内装品は、第一発明又は第二
発明で、板状体が、底板と連接する基端部から他端に向
かって徐々に肉厚が薄くされていることを特徴とする。
本第四発明の車両用内装品は、第一発明〜第三発明で、
中空殻状体をアームレスト又はドアトリムの外形殻とし
たことを特徴とする。SUMMARY OF THE INVENTION The gist of the first aspect of the present invention is a vehicle interior component in which a cushioning member is provided inside a hollow shell having an opening on the mounting surface side, wherein the cushioning member is a plurality of members. The plate-shaped body is made of a synthetic resin lattice-shaped body intersecting each other, and has a recessed notch at one end of the intersection, and the recessed notch is disposed so as to face the inner surface of the hollow shell-shaped body. It is in the interior parts for vehicles characterized by being. Here, the "concave cutouts" do not have to be provided at all of the intersections of the grid. It is preferable that the recessed notch is provided at all the intersections, but a part thereof is sufficient. The vehicle interior part of the second invention is the first invention, in which the plate-shaped body is integrally connected to one side of the lattice-shaped body facing the inner surface of the hollow shell-shaped body, except for the concave cutout portions at the intersections. It is characterized in that a bottom plate is provided. A vehicle interior part of a third aspect of the present invention is the vehicle interior component according to the first aspect or the second aspect, wherein the plate-shaped body is gradually thinned from a base end portion connected to the bottom plate toward the other end. And
The vehicle interior article of the fourth invention is the first invention to the third invention,
The hollow shell-shaped body is used as an outer shell of an armrest or a door trim.
【０００６】[0006]
【作用】本発明の車両用内装品のように、緩衝部材が、
合成樹脂製の格子状体からなり、交差部の一端に凹状切
欠部を有して該凹状切欠部が前記中空殻状体の内面に対
向するように配設されていると、製造，組付けが簡単に
なり、生産性が高まる。そして、格子状体の剛性が一番
高いとされる箇所は、格子状体が互いに交差する交差部
にあたるが、斯る部分が切り欠かれていると、剛性は低
下し、低荷重で座屈変形が進行していく。また、本第二
発明のように、中空殻状体の内面に対向する格子状の一
側に、交差部の凹状切欠部を除き、板状体を一体に連接
する底板が設けると、格子状体の外周面を確保でき、取
扱い，組付けが容易になる。加えて、底板の厚み，凹状
切欠部の大きさ，形状等の設定可能なファクターが広が
ることで、より適切な衝撃吸収性能を選択できるように
なる。更に、本第三発明によれば、格子状体が先端に向
かうにつれその肉厚を薄くしているために、衝撃荷重が
加わった際、格子状体の弱い先端から徐々に座屈変形が
進行していき衝撃吸収を都合よく行なえる。As in the vehicle interior component of the present invention, the cushioning member is
When a lattice-shaped body made of a synthetic resin is provided, and a concave notch is provided at one end of the intersecting portion and the concave notch is arranged so as to face the inner surface of the hollow shell-like body, manufacturing and assembly are performed. Will be easier and more productive. The location where the rigidity of the lattice-like body is highest corresponds to the intersection where the lattice-like bodies intersect with each other. However, if such a portion is cut out, the rigidity decreases and the lattice buckles under a low load. Deformation progresses. Further, as in the second aspect of the present invention, if a bottom plate that integrally connects the plate-shaped bodies is provided on one side of the grid-shaped side facing the inner surface of the hollow shell-shaped body, except for the concave cutouts at the intersection, The outer peripheral surface of the body can be secured, making it easy to handle and assemble. In addition, by expanding the settable factors such as the thickness of the bottom plate, the size and shape of the recessed notch, it becomes possible to select a more appropriate shock absorbing performance. Further, according to the third aspect of the present invention, since the thickness of the lattice-like body is made thinner toward the tip, when the impact load is applied, the buckling deformation gradually progresses from the weak tip of the lattice-like body. You can do shock absorption conveniently.
【０００７】[0007]
【実施例】以下、本発明に係る車両用内装品（以下、単
に「内装品」という。）を実施例に基づいて詳述する。 （１）内装品の構成 図１〜図７は本発明の内装品の一実施例を示し、自動車
ドアのインナーパネル（被取付部）の車室内側に取り付
けられるアームレストに適用したものである。図１は内
装品を取付けたドアの一例を示す斜視図、図２は図１の
IV−IV線断面図、図３は図２の部分拡大図、図４は緩衝
部材の斜視図、図５は緩衝部材の部分拡大断面図、図６
は凹状切欠部周りの拡大斜視図、図７は緩衝部材の側突
時における衝撃変形の経時変化を示す説明断面図、図８
は別態様の凹状切欠部形状の斜視図を示す。EXAMPLES The interior parts for a vehicle according to the present invention (hereinafter simply referred to as "interior parts") will be described in detail below based on examples. (1) Structure of Interior Parts FIG. 1 to FIG. 7 show an embodiment of the interior parts of the present invention, which is applied to an armrest attached to the vehicle interior side of an inner panel (attached portion) of an automobile door. FIG. 1 is a perspective view showing an example of a door to which interior parts are attached, and FIG.
IV-IV line sectional view, FIG. 3 is a partially enlarged view of FIG. 2, FIG. 4 is a perspective view of the cushioning member, FIG. 5 is a partially enlarged cross-sectional view of the cushioning member, and FIG.
8 is an enlarged perspective view around the concave cutout portion, FIG. 7 is an explanatory cross-sectional view showing changes over time in impact deformation at the time of a side impact of the cushioning member, FIG.
Shows a perspective view of another form of concave cutout.
【０００８】アームレストたる内装品Ａは、中空殻状体
１と、衝撃吸収材としての緩衝部材２とを主構成要素と
する。この内装品ＡはドアＺの車室側に設置される（図
１）。尚、図中、符号Ｒはドアトリムを示す。中空殻状
体１は、インナーパネル３に取付けられるが、その取付
け面側が開口した半円ドーム形になっている（図３，図
４）。そして、中空殻状体１の上面を肘当て部分にすべ
くフラットにして、アームレストの外形を形づくる。中
空殻状体１は、ポリプロピレンを主成分とする結晶性の
ある熱可塑性樹脂（ＰＰ）や、アクリロニトリル，ブタ
ジエン，スチレンの３成分からなる非結晶性の熱可塑性
樹脂（ＡＢＳ樹脂）等により射出成形で所定形状に成形
されたものである。上記中空殻状体１の内側底板にはボ
ス１１を立設し、これに緩衝部材２が固着される。The interior component A, which is an armrest, has a hollow shell 1 and a shock absorbing member 2 as a shock absorbing material as main constituent elements. This interior accessory A is installed on the passenger compartment side of the door Z (FIG. 1). In the figure, reference symbol R indicates a door trim. The hollow shell 1 is attached to the inner panel 3, and has a semicircular dome shape with an opening on the attachment surface side (FIGS. 3 and 4). Then, the upper surface of the hollow shell 1 is made flat so as to serve as an elbow rest, and the outer shape of the armrest is formed. The hollow shell 1 is injection-molded with a crystalline thermoplastic resin (PP) containing polypropylene as a main component, an amorphous thermoplastic resin (ABS resin) containing three components of acrylonitrile, butadiene, and styrene. Is molded into a predetermined shape. A boss 11 is provided upright on the inner bottom plate of the hollow shell-shaped body 1, and the cushioning member 2 is fixed thereto.
【０００９】緩衝部材２は、格子状体２１と底板２２と
フランジ部２３と側板２４とからなり、格子状体２１が
中空殻状体１内部を埋め尽くすようにして、中空殻状体
１の内側に配設される。格子状体２１は、合成樹脂製
で、複数の板状体が互いに交差し、中空殻状体１の内面
から取付面６に向けて縦横の格子状となるように形成し
ている（図２，図４）。斯る格子状体２１については、
側突時に加わる強い外力により容易に座屈，変形できる
ようにし、その衝撃が吸収できる緩衝機能を発揮させ
る。具体的には、格子状体２１の基部における肉厚ｔ1
に対し、取付面６に最も近づく先端部分２１ａで肉厚ｔ
2（ｔ2＜ｔ1 ）に設定し、先端に向かうにつれ格子状体
の肉厚を徐々に薄くしている（図５，図６）。側突荷重
が加わった際に、格子状体２１の機械的強度が弱い先端
部分２１ａから徐々に座屈変形を進行させていき、衝撃
圧をうまく吸収できるようにするためである。側突衝撃
Ｇを効果的に吸収し二次的な発生荷重Ｆを極力抑制する
には、肉厚ｔ1 の好適範囲として１.０ｍｍ〜２.５ｍ
ｍ、肉厚ｔ2 の好適範囲として０.５ｍｍ〜１.０ｍｍで
ある。The cushioning member 2 is composed of a lattice-like body 21, a bottom plate 22, a flange portion 23 and a side plate 24. The lattice-like body 21 fills the inside of the hollow shell-like body 1 so that the hollow shell-like body 1 is filled with the cushioning member 2. It is arranged inside. The lattice-shaped body 21 is made of synthetic resin, and is formed so that a plurality of plate-shaped bodies intersect each other and form a vertical and horizontal lattice-shape from the inner surface of the hollow shell-shaped body 1 toward the mounting surface 6 (FIG. 2). , Fig. 4). Regarding the grid-like body 21,
It can be easily buckled and deformed by a strong external force applied at the time of a side impact, and exerts a cushioning function that can absorb the impact. Specifically, the wall thickness t 1 at the base of the grid-like body 21
On the other hand, the thickness t at the tip portion 21a closest to the mounting surface 6 is t
It is set to 2 (t 2 <t 1 ), and the thickness of the lattice-like body is gradually reduced toward the tip (FIGS. 5 and 6). This is because, when a side impact load is applied, buckling deformation gradually progresses from the tip portion 21a of the lattice-like body 21 where the mechanical strength is weak, so that the impact pressure can be absorbed well. In order to effectively absorb the side impact G and suppress the secondary generated load F as much as possible, the preferable range of the wall thickness t 1 is 1.0 mm to 2.5 m.
The preferable range of m and wall thickness t 2 is 0.5 mm to 1.0 mm.
【００１０】底板２２は板状体で、格子状体２１の一側
に、交差部ｘの凹状切欠部４を除き、板状体を一体に連
接するように設けられる。すなわち、上記格子状体２１
の基端面２１１を覆うように一体成形で設けられてい
る。前記格子状体２１の交差部ｘが底板２２と接する箇
所では、底板２２と一緒に格子状体２１の基端部２１２
が緩衝部材２の成形で切り欠かれ、凹状切欠部４を形成
するようにしている。緩衝部材２のなかで剛性が一番大
きくなる基端部２１２の領域を取除いた跡が凹状切欠部
４であり、凹状切欠部４の切り欠き形状は円錐台模様に
なっている。この凹状切欠部４の形成によって、凹状切
欠部の底に位置する格子状体２１の肉厚ｔ3 はｔ2＜ｔ3
＜ｔ1 となる。斯る緩衝部材２は、凹状切欠部４が前記
中空殻状体１の内面に対向するように配設される。この
ように構成することで、側方から加わる初期の衝撃Ｇ
（図７（イ））に対しては、まず格子状体２１の先端部
分２１ａが座屈変形する（図７（ロ））。この時点で
は、凹状切欠部４周りは未だ原形の状態を保つ。更に、
継続する衝撃荷重Ｇに対しては、図７（ハ）のように凹
状切欠部４周りも座屈変形するが、格子状体２１の基端
部２１２が切り欠かれているため、格子状体２１の剛性
が弱くその変形量は大きくなる。かくして、凹状切欠部
４があることで、格子状体の変形に伴う衝撃吸収がスム
ーズに行なわれ、発生荷重Ｆの上昇が抑えられる。凹状
切欠部４の内径Ｄ，深さＬは、格子状体２１の厚み等と
合わせて適切な衝撃吸収性能が得られるような値が選定
される（図５）。尚、凹状切欠部４の形状はこれに限定
されるものでなく、例えば、図８の（イ）に示す四角錐
や（ロ）のような円錐等の形状にすることも可能であ
る。The bottom plate 22 is a plate-like member, and is provided on one side of the grid-like member 21 so as to integrally connect the plate-like members except for the concave cutout 4 at the intersection x. That is, the grid-like body 21
It is integrally formed so as to cover the base end surface 211 of the. At the position where the intersection x of the lattice-like body 21 contacts the bottom plate 22, the base end portion 212 of the lattice-like body 21 together with the bottom plate 22.
Are cut out by forming the cushioning member 2 to form the concave cutout portion 4. The trace of the cushioning member 2 from which the region of the base end portion 212 having the highest rigidity is removed is the concave cutout portion 4, and the cutout shape of the concave cutout portion 4 is a truncated cone shape. Due to the formation of the concave cutouts 4, the thickness t 3 of the grid-like body 21 located at the bottom of the concave cutouts is t 2 <t 3
<T 1 . The cushioning member 2 is arranged so that the concave notch 4 faces the inner surface of the hollow shell 1. With this configuration, the initial impact G applied from the side
With respect to (FIG. 7A), first, the tip end portion 21a of the lattice-like body 21 is buckled and deformed (FIG. 7B). At this point, the original shape is still maintained around the concave notch 4. Furthermore,
With respect to the continuous impact load G, the periphery of the concave notch 4 is also buckled and deformed as shown in FIG. 7C, but since the base end 212 of the lattice 21 is notched, the lattice The rigidity of 21 is weak and its deformation amount becomes large. Thus, the presence of the concave cutouts 4 allows the shock absorption due to the deformation of the lattice-like body to be smoothly performed, and the increase in the generated load F to be suppressed. The inner diameter D and the depth L of the recessed notch 4 are selected so as to obtain an appropriate shock absorbing performance in combination with the thickness of the lattice-like body 21 (FIG. 5). The shape of the concave cutout portion 4 is not limited to this, and may be, for example, a shape such as a quadrangular pyramid shown in (a) of FIG. 8 or a cone like (b).
【００１１】本実施例では、底板２２のみならず格子状
体２１の側面も板状の側板２４が一体成形で格子状体２
１を取囲み、その外周面を覆う。緩衝部材２の取扱い，
組付けを容易にさせる他、緩衝部材２にフランジ部２３
の一体成形を行ない易くするためである。ここでは、緩
衝部材２の構成材料として、前記中空殻状体１と同様、
ポリプロピレンを主成分とする結晶性のある熱可塑性樹
脂（ＰＰ）を使用している。緩衝部材２の材質は、合成
樹脂製であれば特に限定されないが、衝撃吸収性能に適
合する座屈，変形し易いものが好ましいとされる。フラ
ンジ部２３は格子状体２１を取囲んだ側板２４に一体成
形された板片で、このフランジ部２３によって緩衝部材
２が中空殻状体１に熱カシメ等で溶着固定される。緩衝
部材２を中空殻状体１内に配設して内装品Ａを形成し、
斯る内装品Ａが被取付部たるインナーパネル３に組付け
られると、インナーパネル３と格子状体２１の先端との
間に僅かのクリアランスＣがとれるように設定している
（図３）。クリアランスＣが設けられることで、大きな
衝撃に対しても、緩衝部材２がその衝撃を有効に吸収で
きる衝撃吸収特性をもつからである。In this embodiment, not only the bottom plate 22 but also the side faces 24 of the grid-like body 21 are integrally molded to form the grid-like body 2.
1 is surrounded and the outer peripheral surface is covered. Handling of cushioning member 2,
Besides facilitating the assembling, the cushion member 2 has a flange portion 23.
This is for facilitating the integral molding of. Here, as the constituent material of the cushioning member 2, as in the case of the hollow shell 1,
A crystalline thermoplastic resin (PP) containing polypropylene as a main component is used. The material of the cushioning member 2 is not particularly limited as long as it is made of synthetic resin, but it is preferable that the cushioning member 2 that is easy to buckle and deform in conformity with the shock absorbing performance is preferable. The flange portion 23 is a plate piece integrally formed with the side plate 24 surrounding the lattice-like body 21, and the cushioning member 2 is welded and fixed to the hollow shell-like body 1 by the flange portion 23 by heat caulking or the like. The cushioning member 2 is disposed in the hollow shell 1 to form the interior article A,
When such an interior component A is assembled to the inner panel 3 which is the attached portion, a slight clearance C is set between the inner panel 3 and the tip of the lattice-like body 21 (FIG. 3). This is because the provision of the clearance C allows the cushioning member 2 to have a shock absorbing characteristic that can effectively absorb the large shock even if the shock is large.
【００１２】（２）衝撃吸収特性試験 次に、上記緩衝部材２に係る凹状切欠部４の内径Ｄ，深
さＬを種々変えて、それらの変形量に対する発生荷重を
調べてみた。 試験１ サンプル内装品Ａとしてアームレストを採用し、凹状切
欠部４の内径Ｄ＝１０ｍｍφ，深さＬ＝１０ｍｍとした
本発明に係る試験品１と、凹状切欠部を設けていない比
較品１との対比試験を行なった。ここでは、緩衝部材２
の基本的構造を図４のごとくの形状とするが、凹状切欠
部４は円柱形状に切り欠かれている。凹状切欠部４は格
子状体同士のすべての交差部ｘの基端部２１２に設けら
れる。試験品１と比較品１に関係する他の構成部分は同
一で、例えば、格子状体２１（格子間隔：約３０ｍｍ）
は先端に向かうに従い肉厚を徐々に薄くし、その肉厚を
ｔ1 ＝０．８ｍｍ，ｔ3 ＝１．５ｍｍとしている。ま
た、どちらも底板２２，側板２４が設けられている。こ
れら試験品１，比較品１に対して、衝撃荷重が２０．６
ｋｇ，衝撃速度が５．８８ｍ／ｓとして比較試験を実施
した。そして、変形量に対する発生荷重の変化を調べ、
図９に示す結果を得た。 試験２ 試験２では、凹状切欠部４の内径Ｄ＝１０ｍｍφ，深さ
Ｌ＝１０ｍｍとした本発明に係る試験品２と、凹状切欠
部４の内径Ｄ＝１５ｍｍφ，深さＬ＝１５ｍｍとした本
発明に係る試験品３と、凹状切欠部４の内径Ｄ＝２０ｍ
ｍφ，深さＬ＝２０ｍｍとした本発明に係る試験品４
と、凹状切欠部を全く設けていない比較品２との対比試
験を行なった。試験品２〜４と比較品２の他の構成部分
は同一で、また、それらの形状及び寸法は実施例１と同
じである。斯る試験品２〜４，比較品２に対して、衝撃
荷重が２０．６ｋｇ，衝撃速度が５．８８ｍ／ｓとして
比較試験を実施した。その結果を図１０に示す。(2) Shock Absorption Characteristic Test Next, various changes were made to the inner diameter D and the depth L of the recessed notch 4 relating to the cushioning member 2, and the generated load with respect to the amount of deformation was examined. Test 1 A test product 1 according to the present invention in which an armrest was adopted as the sample interior product A, the concave cutout 4 had an inner diameter D = 10 mmφ, and a depth L = 10 mm, and a comparative product 1 having no concave cutout. A contrast test was conducted. Here, the cushioning member 2
4 has a basic structure as shown in FIG. 4, but the concave notch 4 is notched in a cylindrical shape. The concave cutouts 4 are provided at the base end portions 212 of all intersections x between the lattice-shaped bodies. Other components related to the test product 1 and the comparative product 1 are the same, for example, the grid-like body 21 (grid spacing: about 30 mm).
Is gradually thinned toward the tip, and the thicknesses are t1 = 0.8 mm and t3 = 1.5 mm. Further, both have a bottom plate 22 and a side plate 24. Impact load is 20.6 for these test products 1 and comparative product 1.
A comparative test was conducted under the conditions of kg and impact velocity of 5.88 m / s. Then, check the change in the generated load with respect to the amount of deformation,
The results shown in FIG. 9 were obtained. Test 2 In Test 2, a test product 2 according to the present invention in which the concave cutout 4 had an inner diameter D = 10 mmφ and a depth L = 10 mm, and a book in which the concave cutout 4 had an inner diameter D = 15 mmφ and a depth L = 15 mm Inner diameter D = 20 m of the test piece 3 according to the invention and the concave cutout 4
Test product 4 according to the present invention, in which mφ and depth L = 20 mm
And a comparative product 2 having no concave cutout portion were subjected to a comparison test. The other constituent parts of the test products 2 to 4 and the comparative product 2 are the same, and their shapes and dimensions are the same as those of the first embodiment. Comparative tests were carried out on the test products 2 to 4 and the comparative product 2 with an impact load of 20.6 kg and an impact velocity of 5.88 m / s. The result is shown in FIG.
【００１３】（３）実施例の効果 本実施例に係る内装品Ａによれば、緩衝部材２の主要部
が単純構造の格子状体２１で形成されるので、製造，組
付けが簡単になる。加えて、その格子状体２１は先端に
向かうにつれ肉厚が薄くなっているので、これが抜き勾
配をつけたことにもなり安く速く大量に緩衝部材２を製
造できるようになる。そして、格子状体２１について、
その先端に向かうにつれ肉厚を薄くしたことで、側突時
に衝撃荷重が加わった際、格子状体の弱い先端から徐々
に座屈変形が進行していくことになり（図７（イ）〜
（ハ））、衝撃をうまく吸収できるようになる。従っ
て、二次的な発生荷重Ｆを極力抑えることが可能にな
る。特に、格子状体２１を採用にあたって、最も剛性が
大きいとされる基端部を切り欠いているので、側突に対
し最後まで低荷重で座屈変形が進行させることができ、
好適な内装品となる。これらは既述の衝撃吸収特性試験
１，２によっても明らかである（図９，図１０）。更
に、底板２２の厚み、凹状切欠部４の大きさ，形状等の
設定可能なファクターが広がり、車体パネルの強度と併
せてより適切な衝撃吸収性能を得るようになる。かくし
て、乗員の安全が保障される。(3) Effect of Embodiment According to the interior component A according to this embodiment, since the main part of the cushioning member 2 is formed of the lattice-like body 21 having a simple structure, manufacturing and assembling are simplified. . In addition, since the thickness of the lattice-like body 21 becomes thinner toward the tip, this also gives a draft, which makes it possible to manufacture the cushioning member 2 cheaply and quickly in large quantities. Then, regarding the grid-like body 21,
By reducing the wall thickness toward the tip, when an impact load is applied at the time of a side impact, the buckling deformation gradually progresses from the weak tip of the lattice-like body (Fig. 7 (a)-
(C)) You can absorb the shock well. Therefore, the secondary generated load F can be suppressed as much as possible. In particular, when the lattice-shaped body 21 is adopted, the base end portion which is said to have the highest rigidity is cut out, so that the buckling deformation can be advanced to the end with a low load to the end,
It becomes a suitable interior item. These are also apparent from the impact absorption characteristic tests 1 and 2 described above (FIGS. 9 and 10). Further, the settable factors such as the thickness of the bottom plate 22 and the size and shape of the recessed notch 4 are widened, and more appropriate shock absorbing performance can be obtained together with the strength of the vehicle body panel. Thus, the safety of passengers is guaranteed.
【００１４】尚、本発明においては、前記実施例に示す
ものに限られず、目的，用途に応じて本発明の範囲で種
々変更できる。更に、アームレストに限らず、ドアトリ
ム，ダッシュボード，コンソールボックス，グローブボ
ックス，ニュープロテクター、その他の車両用内装品を
取付けるのに適用でき、斯る場合、内装品の機能，用
途，所要強度等に応じて各部の形状及び構成材料等を適
宜選択し得る。The present invention is not limited to those shown in the above embodiment, but can be variously modified within the scope of the present invention depending on the purpose and application. Further, it can be applied to not only armrests but also door trims, dashboards, console boxes, glove boxes, new protectors, and other vehicle interior parts. In such a case, depending on the function, application, required strength, etc. of the interior parts. The shape and constituent material of each part can be appropriately selected.
【００１５】[0015]
【発明の効果】以上のごとく、本発明に係る車両用内装
品は、衝撃吸収を行ない得る格子状体，凹状切欠部を備
えた緩衝部材を採用することで、生産性良好にして低コ
ストを実現でき、しかも、側突に対して吸収できない二
次的な発生荷重を低く抑えることが可能になるなど、乗
員の安全確保に優れた効果を発揮する。As described above, the vehicle interior component according to the present invention adopts the cushioning member having the lattice-like body and the concave cutout portion capable of absorbing the impact, thereby improving the productivity and reducing the cost. It is possible to realize it, and moreover, it is possible to suppress the secondary generated load that cannot be absorbed against the side collision to a low level.
【図１】本発明の車両用内装品を取付けたドアの一例を
示す斜視図の斜視図である。1 is a perspective view of a perspective view showing an example of a door to which a vehicle interior component of the present invention is attached.
【図２】図１のIV−IV線断面図である。FIG. 2 is a sectional view taken along line IV-IV in FIG.
【図３】図２の部分拡大図である。FIG. 3 is a partially enlarged view of FIG.
【図４】緩衝部材の斜視図である。FIG. 4 is a perspective view of a cushioning member.
【図５】緩衝部材の部分拡大断面図である。FIG. 5 is a partially enlarged sectional view of a cushioning member.
【図６】凹状切欠部周りの拡大斜視図である。FIG. 6 is an enlarged perspective view around a concave cutout portion.
【図７】実施例に係る車両用内装品の側突時における衝
撃変形の経時変化を示す説明断面図である。FIG. 7 is an explanatory cross-sectional view showing changes over time in impact deformation of a vehicle interior component according to an embodiment during a side impact.
【図８】別態様の凹状切欠部形状の斜視図である。FIG. 8 is a perspective view of another form of a concave cutout portion.
【図９】変形量に対する発生荷重の対比グラフである。FIG. 9 is a graph showing the relationship between the amount of deformation and the generated load.
【図１０】変形量に対する発生荷重の対比グラフであ
る。FIG. 10 is a graph showing the relationship between the amount of deformation and the generated load.
【図１１】単なる格子状体を使用した車両用内装品の側
突時の変形状態を示す縦断面図である。FIG. 11 is a vertical cross-sectional view showing a deformed state of a vehicle interior component using a simple lattice-shaped body at the time of a side collision.
【図１２】変形量に対する発生荷重の対比グラフであ
る。FIG. 12 is a comparison graph of generated load against deformation amount.
１ 中空殻状体 ２ 緩衝部材 ２１ 格子状体 ２１２ 基端部 ２２ 底板 ４ 凹状切欠部 Ａ 車両用内装品 ｘ 交差部 DESCRIPTION OF SYMBOLS 1 Hollow shell-shaped body 2 Cushioning member 21 Lattice-shaped body 212 Base end part 22 Bottom plate 4 Recessed notch part A Vehicle interior parts x Intersection part
Claims (4)
緩衝部材を配設してなる車両用内装品において、前記緩
衝部材は、複数の板状体が互いに交差する合成樹脂製の
格子状体からなると共に、前記交差部の一端に凹状切欠
部を有し、該凹状切欠部が前記中空殻状体の内面に対向
するように配設されていることを特徴とする車両用内装
品。1. A vehicular interior component in which a cushioning member is disposed inside a hollow shell-shaped body having an opening on an attachment surface side, wherein the cushioning member is a synthetic resin lattice in which a plurality of plate-shaped bodies intersect with each other. The vehicle interior product is formed of a cylindrical body and has a concave cutout portion at one end of the intersecting portion, and the concave cutout portion is arranged so as to face the inner surface of the hollow shell-shaped body. .
一側に、交差部の凹状切欠部を除き、板状体を一体に連
接する底板が設けられている請求項１記載の車両用内装
品。2. The bottom plate for integrally connecting the plate-shaped bodies is provided on one side of the lattice-shaped body facing the inner surface of the hollow shell-shaped body, except for the concave cutouts at the intersections. Interior parts for vehicles.
端に向かって徐々に肉厚が薄くされている請求項１又は
２記載の車両用内装品。3. The vehicle interior component according to claim 1, wherein the plate-shaped body has a thickness gradually reduced from a base end portion connected to the bottom plate toward the other end.
トリムの外形殻とした請求項１乃至３のいずれかに記載
の車両用内装品。4. The vehicle interior component according to claim 1, wherein the hollow shell-shaped body is an outer shell of an armrest or a door trim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7144053A JP2978083B2 (en) | 1995-05-17 | 1995-05-17 | Vehicle interior parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7144053A JP2978083B2 (en) | 1995-05-17 | 1995-05-17 | Vehicle interior parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08310321A true JPH08310321A (en) | 1996-11-26 |
| JP2978083B2 JP2978083B2 (en) | 1999-11-15 |
Family
ID=15353226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7144053A Expired - Fee Related JP2978083B2 (en) | 1995-05-17 | 1995-05-17 | Vehicle interior parts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2978083B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2812245A1 (en) * | 2000-07-26 | 2002-02-01 | Ecia Equip Composants Ind Auto | Automobile door with adjustable armrest fixed to fixing part on door interior vertical wall by complementary coupling parts having several relative positions |
| JP2007168648A (en) * | 2005-12-22 | 2007-07-05 | Kasai Kogyo Co Ltd | Interior part for automobile |
| DE10234927B4 (en) * | 2001-08-07 | 2007-10-31 | Honda Giken Kogyo K.K. | Shock absorber for a two-wheeler |
| KR100780247B1 (en) * | 2006-05-23 | 2007-11-27 | 한일이화주식회사 | Door trim of vehicle |
| DE10234928B4 (en) * | 2001-08-07 | 2008-10-23 | Honda Giken Kogyo K.K. | Shock absorber for a two-wheeler |
| CN108569235A (en) * | 2017-03-10 | 2018-09-25 | 丰田纺织株式会社 | Absorbing body |
-
1995
- 1995-05-17 JP JP7144053A patent/JP2978083B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2812245A1 (en) * | 2000-07-26 | 2002-02-01 | Ecia Equip Composants Ind Auto | Automobile door with adjustable armrest fixed to fixing part on door interior vertical wall by complementary coupling parts having several relative positions |
| DE10234927B4 (en) * | 2001-08-07 | 2007-10-31 | Honda Giken Kogyo K.K. | Shock absorber for a two-wheeler |
| DE10234928B4 (en) * | 2001-08-07 | 2008-10-23 | Honda Giken Kogyo K.K. | Shock absorber for a two-wheeler |
| JP2007168648A (en) * | 2005-12-22 | 2007-07-05 | Kasai Kogyo Co Ltd | Interior part for automobile |
| KR100780247B1 (en) * | 2006-05-23 | 2007-11-27 | 한일이화주식회사 | Door trim of vehicle |
| CN108569235A (en) * | 2017-03-10 | 2018-09-25 | 丰田纺织株式会社 | Absorbing body |
| US10457238B2 (en) | 2017-03-10 | 2019-10-29 | Toyota Boshoku Kabushiki Kaisha | Impact absorber |
| CN108569235B (en) * | 2017-03-10 | 2021-07-09 | 丰田纺织株式会社 | Shock absorber |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2978083B2 (en) | 1999-11-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7201434B1 (en) | Energy-absorbing bolster for an automotive instrument panel assembly | |
| JP3585566B2 (en) | Automotive instrument panel with knee rest | |
| JPH0866981A (en) | Interior member for vehicle | |
| JP2001253311A (en) | Air bag device for front passenger seat | |
| WO2005023599A1 (en) | Structural knee bolster | |
| JPH10297345A (en) | Footrest for automobile | |
| JP2018149844A (en) | Impact absorption member | |
| JPH08310321A (en) | Interior trim equipment for vehicle | |
| US20040070188A1 (en) | Passenger restraint | |
| JPH11129840A (en) | Impact absorbing member | |
| JP3328072B2 (en) | Automotive trim | |
| JPH0716867A (en) | Shock absorbing structure of interior member for automobile | |
| JPH02306846A (en) | Automobile air bag device | |
| JPH0948301A (en) | Interior trim material for vehicle | |
| JPH09226496A (en) | Air bag module for front passenger seat | |
| JPH11115488A (en) | Interior parts for automobile | |
| US20070138833A1 (en) | Energy absorption device | |
| JPH08164810A (en) | Interior member for vehicle and fitting structure thereof | |
| JP5610583B2 (en) | Automotive interior parts and their shock absorbers | |
| JP3202486B2 (en) | Automotive trim | |
| JP4048852B2 (en) | Automotive interior parts | |
| JPH0911829A (en) | Interior material for vehicle | |
| JP3121952B2 (en) | Shock absorbing structure on the side of the vehicle | |
| JP2008230552A (en) | Vehicular interior part | |
| JPH0885339A (en) | Interior part for automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20070910 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080910 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080910 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090910 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100910 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110910 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120910 Year of fee payment: 13 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130910 Year of fee payment: 14 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |