JP2010023723A - Vehicular interior part - Google Patents

Vehicular interior part Download PDF

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Publication number
JP2010023723A
JP2010023723A JP2008189011A JP2008189011A JP2010023723A JP 2010023723 A JP2010023723 A JP 2010023723A JP 2008189011 A JP2008189011 A JP 2008189011A JP 2008189011 A JP2008189011 A JP 2008189011A JP 2010023723 A JP2010023723 A JP 2010023723A
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interior part
airbag
vehicle
interior
end side
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JP2008189011A
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JP5088744B2 (en
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Toshihisa Kaneda
敏久 金田
Saori Aoyama
さおり 青山
Jiro Watanabe
次郎 渡辺
Daisuke Tabata
大輔 田畑
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Kasai Kogyo Co Ltd
Nissan Motor Co Ltd
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Kasai Kogyo Co Ltd
Nissan Motor Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular interior part capable of ensuring the consistent development performance of airbags. <P>SOLUTION: The vehicular interior part includes an interior part body fitted to a cabin side of a vehicle body panel, an airbag installed in a space between the vehicle body panel and the interior part body; a development unit which is demarcated in a part of area of an interior part body material, and turned to open an opening, through which the airbag is developed into the cabin; and a plurality of tiers formed on a boundary line demarcating the development unit in the interior part body for allowing the turn of the development unit by the expansion pressure of the airbag. The tiers reach an end ridge at an end side of the interior part body to form a starting point of the cleavage of the boundary line. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、エアバッグを内蔵した車両用内装部品に関する。   The present invention relates to a vehicle interior part incorporating an airbag.

車両用エアバッグは、車両が障害物や他の車両などに衝突した際に、車両の構造体と乗員の間に膨張展開し、乗員が慣性力によって車両構造体に直接衝突することを防ぎ、安全を確保することを目的とするものである。したがって、エアバッグ装置は、乗員が車両構造体に衝突する間の短い時間内に、衝突を感知し、エアバッグの展開膨張を確実に完了させる機能を有する必要がある。   The vehicle airbag is inflated and deployed between the vehicle structure and the occupant when the vehicle collides with an obstacle or another vehicle, preventing the occupant from directly colliding with the vehicle structure due to inertial force, The purpose is to ensure safety. Therefore, the airbag device needs to have a function of detecting the collision and reliably completing the deployment and inflation of the airbag within a short time while the occupant collides with the vehicle structure.

特許文献１には、車両のサイドドア内に設置されたエアバッグ装置において、車両の側面衝突時に、エアバッグが、サイドドアのドアトリム上部から車室内に確実に膨出できる技術が開示されている。   Patent Document 1 discloses a technique in which an airbag can be reliably inflated from an upper portion of a door trim of a side door into a vehicle interior in a side collision of the vehicle in an airbag device installed in a side door of the vehicle. .

上記の従来技術では、エアバッグが展開膨張する場合に、ドアトリムの芯材を薄肉に加工した溝により画設された展開部が、上方に回動して押し開かれる構成となっている。この際に、薄肉の溝の一部が破断し、一部は繋がった状態でヒンジとして作用することにより、エアバッグの展開膨張が確実に行われる効果が得られる。   In the above-described conventional technology, when the airbag is deployed and inflated, the deployed portion provided by the groove formed by thinning the door trim core is rotated upward and pushed open. At this time, a part of the thin-walled groove is broken, and a part of the groove is connected to act as a hinge, so that an effect of surely deploying and inflating the airbag is obtained.

特開２００６-８８７３１号公報JP 2006-88731 A

本発明が解決しようとする課題について、車両用内装部品の一つであるドアトリムを例に、図を用いて説明する。   The problem to be solved by the present invention will be described with reference to the drawings, taking as an example a door trim which is one of vehicle interior parts.

図１は、ドアトリム１を車室側から見た概略図である。ドアトリム1は車体パネルに取り付けられ、ドアトリム上部の内側の空瞭には、エアバッグユニット１０が設置される（図２（ａ）参照）。エアバッグ８は、車両衝突時に発生する高圧ガスにより膨張し、ドアトリム１の上部の一部領域、所謂ウエスト部に画設された展開部３を開いて車室内に膨張展開する。展開部３をウエスト部の他の部分と画す境界上には、複数のティア２が加工されている。ティア２は、複数個が並んで切り取り線のように境界線を形作る幅の狭い長孔であり、展開部３がエアバッグの膨張圧で押し上げられた時にドアトリム１の芯材を開裂させ、展開部３が回動して開口を開くことを可能とするために形成される。   FIG. 1 is a schematic view of the door trim 1 as viewed from the passenger compartment side. The door trim 1 is attached to a vehicle body panel, and an air bag unit 10 is installed in a clear space inside the upper portion of the door trim (see FIG. 2A). The airbag 8 is inflated by the high-pressure gas generated at the time of a vehicle collision, and opens and expands in the vehicle interior by opening the deployment portion 3 provided in a partial region of the upper portion of the door trim 1, a so-called waist portion. A plurality of tiers 2 are processed on the boundary that defines the development part 3 with the other part of the waist part. The tier 2 is a narrow long hole that forms a boundary line like a cut line by lining up a plurality of tiers 2. When the deployment part 3 is pushed up by the inflation pressure of the airbag, the core material of the door trim 1 is cleaved and deployed. Formed to allow the part 3 to pivot and open the opening.

図２（ａ）は、図１中に示したＡ-Ａにおける断面の模式図を示している。ドアトリム１の内面（以下、ドアトリム１の車室側の面を外面として説明する。）にケース９を取付け、ケース９とドアトリム１の間にエアバッグユニット１０が設置されている。図に示したドアトリム１の部分は、展開部３とヒンジ２ａを有する。展開部３は、エアバッグ８の膨張圧によりヒンジ２ａを軸として上方に回動して開口を開き、エアバッグ８が車室内に膨張展開することを可能にする。ヒンジ２ａは、展開部３の境界の一部であって、開裂しないで残る部分である（図２（ｂ）参照）。   FIG. 2A shows a schematic diagram of a cross section taken along line AA shown in FIG. A case 9 is attached to the inner surface of the door trim 1 (hereinafter, the surface of the door trim 1 on the passenger compartment side will be described as an outer surface), and the airbag unit 10 is installed between the case 9 and the door trim 1. The portion of the door trim 1 shown in the figure has a deployment part 3 and a hinge 2a. The deployment portion 3 is rotated upward about the hinge 2a by the inflation pressure of the airbag 8 to open the opening, thereby enabling the airbag 8 to be inflated and deployed in the vehicle interior. The hinge 2a is a part of the boundary of the development part 3 and remains without being cleaved (see FIG. 2B).

図２（ｂ）は、展開部３がエアバッグ８の膨張圧により押し上げられて開く状態を示した説明図である。展開部３の側辺２ｂは、膨張圧によってドアトリム１の他の部分から開裂して分離し、ドアトリム１との結合を保持した部分２ａはヒンジとして作用し、図中に矢印で示すように展開部３が上方へ回動する際の回動軸となる。   FIG. 2B is an explanatory view showing a state in which the deploying portion 3 is pushed up and opened by the inflation pressure of the airbag 8. The side 2b of the development part 3 is cleaved and separated from the other part of the door trim 1 by the expansion pressure, and the part 2a that holds the connection with the door trim 1 acts as a hinge, and is developed as indicated by an arrow in the figure. It becomes a rotation axis when the part 3 rotates upward.

エアバッグは、展開部３がヒンジ２ａを軸として回動して開いた開口から車室内に展開する。したがって、エアバッグが膨張展開を瞬時に完了して、その機能を果たすためには、展開部３の側辺２ｂが抵抗なく開裂して、展開部３がスムーズに回動することが重要である。   The airbag is deployed into the passenger compartment through an opening that is opened by the deployment portion 3 being pivoted about the hinge 2a. Therefore, in order for the airbag to complete the inflation and deployment instantaneously and perform its function, it is important that the side 2b of the deployment part 3 is cleaved without resistance and the deployment part 3 rotates smoothly. .

しかしながら、従来の車両用内装部品には、展開部３の回動を妨げる、以下の問題があった。   However, the conventional interior parts for vehicles have the following problems that hinder the rotation of the expanding portion 3.

図３は、ドアトリム１上部の芯材の部分を模式的に示した図である。展開部３を画する境界の一部であって、開裂して展開部３の側辺２ｂとなる部分にティア２が加工されている。ドアトリム１の端辺に対応する芯材端辺５の内側に複数のティア２が間隔を置いて加工されている。   FIG. 3 is a diagram schematically showing the core material portion at the top of the door trim 1. The tier 2 is processed in a part of the boundary that defines the development part 3 and that is cleaved to become the side 2b of the development part 3. A plurality of tiers 2 are machined at intervals inside the core material edge 5 corresponding to the edge of the door trim 1.

芯材の開裂を容易とするために、長孔であるティア２を加工した展開部３の境界周辺は、必然的に剛性を失っており、ドアトリム１を取り扱う際、例えば、車体パネル２２に取り付ける過程で、ガーニッシュに嵌め込む際に加わる力により割れて開裂するおそれがある。このため、芯材端辺５に隣接するティア２の端から芯材端辺までの間の端末部残し代６を広く設定し、取り扱いの際に開裂しない程度の強度を確保する必要がある。   In order to facilitate the tearing of the core material, the vicinity of the boundary of the developed part 3 in which the tier 2 which is a long hole is processed inevitably loses rigidity, and when the door trim 1 is handled, for example, it is attached to the vehicle body panel 22 In the process, there is a risk of cracking and splitting due to the force applied when fitting into the garnish. For this reason, it is necessary to widen the terminal portion leaving allowance 6 between the end of the tier 2 adjacent to the core material edge 5 and the core material edge to ensure a strength that does not cause tearing during handling.

一方、ティア２の加工は、ドアトリム１の芯材を成型加工した後、芯材をレーザー加工機にセットして行う。この際、ティア２が連続して加工される部分は、芯材をセットした加工ステージの送り精度、またはレーザー装置の送り精度等の機械精度で決まり、ティア２および連続部残し代７に必要な加工精度が確保されるのに対し、芯材端辺５とティア２の端部の間隔である端末残り代６の幅は、芯材を加工ステージ上の冶具にセットする際のバラツキを含んでしまうことになる。   On the other hand, the processing of the tier 2 is performed by molding the core material of the door trim 1 and then setting the core material on a laser processing machine. At this time, the portion where the tier 2 is continuously processed is determined by the mechanical accuracy such as the feeding accuracy of the processing stage on which the core material is set or the feeding accuracy of the laser device, and is necessary for the tier 2 and the remaining portion 7 of the continuous portion. While the processing accuracy is ensured, the width of the terminal remaining allowance 6, which is the distance between the end 5 of the core material 5 and the end of the tier 2, includes variations when the core material is set on the jig on the processing stage. Will end up.

前述のとおり、端末残り代６の強度は、展開部３が回動する際に容易に開裂し、ドアトリム１の取り扱い時に割れて開裂することがない強度範囲にあることが必要である。加工時のセット位置のバラツキを含んで、端末残り代６の強度が区々となった場合には、前記の強度範囲を越えてしまう可能性がある。すなわち、端末残り代６が設定より広くなって強度が高くなり、開裂時の抵抗が大きくなると、展開部３の回動が遅れてエアバッグ８が瞬時に膨張展開できず、その機能を果たせない可能性がある。   As described above, the strength of the terminal remaining allowance 6 needs to be within a strength range in which the unfolded portion 3 is easily cleaved when the unfolded portion 3 is rotated and is not broken and broken when the door trim 1 is handled. If the strength of the remaining terminal allowance 6 varies, including variations in the set position during processing, the strength range may be exceeded. That is, if the terminal remaining allowance 6 becomes wider than the setting and the strength is increased and the resistance at the time of tearing is increased, the rotation of the deploying portion 3 is delayed, and the airbag 8 cannot be inflated and deployed instantaneously and cannot perform its function. there is a possibility.

そこで、本発明は、上記問題点を鑑みてなされたもので、エアバッグの安定した展開性能を確保できる車両用内装部品を提供することを目的とする。   Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicle interior part that can ensure stable deployment performance of an airbag.

上記課題を解決するために、本発明に係る車両用内装部品は、車体パネルの車室側に取り付けられる内装部品本体と、車体パネルと内装部品本体の間の空隙に設置されるエアバッグと、内装部品本体の一部領域に画設され、エアバッグが車室内へ展開する開口を開くために回動する展開部と、エアバッグの膨張圧による展開部の回動を可能とするために、内装部品本体において、展開部を画する境界線上に加工された複数のティアと、を備え、内装部品本体の端辺において、ティアが端辺に達し、境界線の開裂の起点となることを特徴とする。   In order to solve the above-described problems, an interior part for a vehicle according to the present invention includes an interior part body attached to a vehicle compartment side of a vehicle body panel, an air bag installed in a gap between the body panel and the interior part body, In order to enable rotation of the deployment portion that is provided in a partial region of the interior part main body and rotates to open an opening in which the airbag is deployed into the vehicle interior, and the deployment portion due to the inflation pressure of the airbag, The interior part body has a plurality of tiers processed on the boundary line defining the development part, and the tier reaches the edge side at the end side of the interior part body, and becomes a starting point of the boundary line cleavage. And

本発明によれば、ティア加工時の内装部品本体をセットする際のバラツキが、内装部品本体の端辺に達するティアの長さに吸収されるので、ティアとティアの間の残り代の再現性を確保することができる。これにより、残り代部分の強度が一定となり、さらに端辺のティアが開裂の基点となり、安定した展開部の回動が可能となる。その結果、エアバッグの膨張展開を安定して行うことができる。   According to the present invention, the variation in setting the interior part body during tiering is absorbed by the length of the tier reaching the end of the interior part body, so the reproducibility of the remaining margin between tiers Can be secured. As a result, the strength of the remaining margin becomes constant, and the tear at the end side becomes the base point for cleavage, and the rotation of the deployed portion can be stably performed. As a result, the airbag can be stably inflated and deployed.

また、本発明に係る車両用内装部品は、複数ティアは、所定の間隔をもって加工され、内装部品本体の端辺近傍におけるティアとティアの間隔が、他の部分より広いことを特徴とする。   In the interior component for a vehicle according to the present invention, the plurality of tiers are processed with a predetermined interval, and the interval between the tiers in the vicinity of the end side of the interior component main body is wider than other portions.

これにより、内装部品を取り扱う際に、端辺から開裂が生じないように、端辺に隣接する残り代の強度を増やすことができる。   Thereby, when handling interior parts, the intensity | strength of the remaining margin adjacent to an edge can be increased so that a tear may not arise from an edge.

さらに、本発明に係る車両用内装部品は、展開部の端辺と、端辺に達するテイアとの交点における展開部の端辺とティアの間の内角が鈍角であることにより、展開部が回動した後の展開部の両端における形状が鋭角を有しないことを特徴とする。 Furthermore, in the interior part for a vehicle according to the present invention, since the inner angle between the end side of the developed part and the tier at the intersection of the end side of the developed part and the tear reaching the end side is an obtuse angle, the developed part is rotated. The shape at both ends of the developed part after moving does not have an acute angle.

これにより、エアバッグが車室内に膨張展開する際に、展開部が回動して車室内に端辺を向けた状態となったとしても、両端部が鋭角でないので乗員が衝突して負傷する恐れを無くすことができる。 As a result, when the airbag is inflated and deployed in the vehicle interior, even if the deployment portion rotates and the end side is directed toward the vehicle interior, the occupants collide and are injured because both ends are not acute angles. You can eliminate fear.

本発明に係る車両用内装部品によれば、ティアとティアの間の残り代の再現性を確保することにより、エアバッグの安定した展開性能を確保することができる。   According to the vehicle interior part of the present invention, it is possible to ensure stable deployment performance of the airbag by ensuring the reproducibility of the remaining margin between the tiers.

以下、本発明を実施するための最良の形態について詳細に説明する。   Hereinafter, the best mode for carrying out the present invention will be described in detail.

本発明に係る車両用内装部品を、図１に示すドアトリム１を例として説明する。ドアトリム１は、車両ドアに取付けられる車体パネル２２の車室側に装着して使用される。ドアトリム１本体の上部に位置する一部領域には、展開部３が画設されている。   An interior part for a vehicle according to the present invention will be described using a door trim 1 shown in FIG. 1 as an example. The door trim 1 is used by being mounted on the vehicle compartment side of the vehicle body panel 22 attached to the vehicle door. An unfolding portion 3 is provided in a partial region located in the upper portion of the door trim 1 main body.

ドアトリム１に画設された展開部３は、境界の一部であるヒンジ２ａを軸として上方に回動し、エアバッグ８が車室内に膨張展開するための開口を開く（図２（ａ）参照）。ドアトリム１の内面には、ケース９に保持される状態で、エアバッグユニット１０が設置される（図２（ａ）参照）。ドアトリム１が車体パネル２２に装着された状態においては、ケース９は車体パネル２２に隣接した位置に固定され、エアバッグユニット１０は、車体パネル２２とドアトリム１の間に設置される。   The deployment portion 3 provided in the door trim 1 rotates upward about the hinge 2a that is a part of the boundary, and opens an opening for the airbag 8 to be inflated and deployed in the vehicle interior (FIG. 2A). reference). An airbag unit 10 is installed on the inner surface of the door trim 1 while being held by the case 9 (see FIG. 2A). When the door trim 1 is mounted on the vehicle body panel 22, the case 9 is fixed at a position adjacent to the vehicle body panel 22, and the airbag unit 10 is installed between the vehicle body panel 22 and the door trim 1.

図４(ａ)は、ドアトリム１上部の芯材であって、展開部３が画設された一部を模式的に示した説明図である。展開部３が画された境界に沿って、複数のティアが加工されている。   FIG. 4A is an explanatory diagram schematically showing a part of the core material of the upper portion of the door trim 1 where the development portion 3 is provided. A plurality of tiers are processed along the boundary where the development part 3 is drawn.

図４（ｂ）は、図４（ａ）中のＢに示した芯材端辺５の一部分を模式的に示した説明図である。芯材端辺５近傍における展開部３の境界においては、端辺に達するティアである捨てティア１２が加工されている。捨てティア１２に続くテイア２との間には開裂基点部残し代１３が設けられ、さらに連続部残し代７の間隔を取って複数のティア２が、境界上に連続して加工されている。   FIG. 4B is an explanatory view schematically showing a part of the core material edge 5 shown by B in FIG. At the boundary of the expanded portion 3 in the vicinity of the core material edge 5, a discard tier 12 that is a tier that reaches the edge is processed. A cleavage base portion leaving allowance 13 is provided between the tear tier 12 and the tier 2, and a plurality of tiers 2 are continuously processed on the boundary with an interval of a continuous portion leaving allowance 7.

ドアトリム１をレーザー加工装置にセットする際に生じる位置ずれは、捨てティア１２の長さのバラツキとして吸収され、開裂基点部残し代１３の幅は、加工装置の機械精度で決まる誤差範囲に収めることが可能となる。一般に使用される加工装置では、ミクロンオーダーの機械精度が実現されるので、展開部３が回動する際に容易に開裂し、ドアトリム１の取り扱い時に割れて開裂することがない強度を、再現性良く確保することができる。   The misalignment that occurs when the door trim 1 is set in the laser processing apparatus is absorbed as a variation in the length of the discard tier 12, and the width of the remaining margin 13 of the cleavage base portion is within an error range determined by the machine accuracy of the processing apparatus. Is possible. Generally used machining equipment achieves micron-order mechanical accuracy, so that the strength is such that it easily breaks when the unfolding portion 3 rotates and does not break when the door trim 1 is handled. It can be secured well.

さらに、エアバッグ８が膨張展開して展開部３が押し上げられる際には、捨てティア１２から開裂が開始し、開裂基点部残し代１３に力が集中するので、境界部２ｂ（図２（ｂ）参照）の破断が容易となり、展開部３がスムーズに回動して、エアバッグの安定した展開性能を確保することができる。   Further, when the airbag 8 is inflated and deployed and the deploying portion 3 is pushed up, the tearing starts from the discard tier 12 and the force concentrates on the split base point remaining allowance 13, so that the boundary portion 2b (FIG. 2 (b )) Is easy to break, and the deployment portion 3 can smoothly rotate to ensure stable deployment performance of the airbag.

ドアトリム１の上部を車体パネルに取り付ける過程において、展開部３の境界が開裂しないようにするためには、開裂基点残し代１３の幅を連続部残し代７より広くすれば良い。   In the process of attaching the upper portion of the door trim 1 to the vehicle body panel, the width of the split base point leaving allowance 13 may be made wider than the continuous portion leaving allowance 7 in order to prevent the boundary of the developed portion 3 from being cleaved.

図５は、本発明の実施例を示す説明図である。本実施例においては、開裂基点部残し代１３を５ｍｍとして、連続部残し代７を１．５ｍｍとしている。これらは、ミクロンオーダーの加工精度を持つレーザー加工装置により、容易に実施することができる。開裂基点部残し代１３を５ｍｍとすることにより、取り扱い時に展開部３の開裂が生じない強度が確保される。また、捨てティア１２を２ｍｍとしているので、ドアトリムを加工装置にセットする際のバラツキが１ｍｍあるとしても、長さ１ｍｍから２ｍｍの捨てティア１２が確実に加工される。   FIG. 5 is an explanatory view showing an embodiment of the present invention. In the present embodiment, the cleavage base portion leaving allowance 13 is 5 mm, and the continuous portion leaving allowance 7 is 1.5 mm. These can be easily performed by a laser processing apparatus having a processing accuracy of micron order. By setting the cleavage base point remaining allowance 13 to 5 mm, the strength at which the developed portion 3 is not cleaved during handling is ensured. Further, since the discard tier 12 is set to 2 mm, the discard tier 12 having a length of 1 mm to 2 mm is reliably processed even if there is a variation of 1 mm when the door trim is set in the processing apparatus.

前述のとおり、捨てティア１２があることにより開裂の基点が定まり、開裂基点部残し代１３に捩じ切る力が集中するため開裂が容易に進み、展開部３がスムーズに回動して、エアバッグ８が車室内に膨張展開するための開口を開くことが可能となる。 As described above, the base point of the cleavage is determined by the presence of the discard tier 12, and the force to twist is concentrated on the remaining base 13 of the cleavage base portion, so that the cleavage proceeds easily, the unfolding portion 3 rotates smoothly, and the air It is possible to open an opening for the bag 8 to expand and deploy in the vehicle interior.

上記の実施例において、展開部３の境界上に加工されるティア２は、レーザー加工で形成される幅の狭い長孔であるが、本発明の実施においては、これに限られるものではなく、例えば、薄肉に加工された脆弱部としても、同様な作用効果を発揮することが可能である。   In the above-described embodiment, the tier 2 processed on the boundary of the development part 3 is a narrow long hole formed by laser processing, but is not limited to this in the practice of the present invention. For example, even a weak portion processed into a thin wall can exhibit the same effect.

図６（ａ）は、本発明の別の実施態様を示す模式図である。上記の実施態様と同様に、展開部３と、ドアトリム１本体との境界上には、複数のティア２が形成され、また、芯材端辺５に達する捨てティア１２ａが形成されている。捨てティア１２ａとティア２の間の開裂基点部残し代１３は、ティア２の連続部残し代より広く設定されている。   Fig.6 (a) is a schematic diagram which shows another embodiment of this invention. Similar to the above embodiment, a plurality of tiers 2 are formed on the boundary between the developing portion 3 and the door trim 1 main body, and a discarded tier 12 a reaching the core edge 5 is formed. The cleavage base portion remaining allowance 13 between the discarded tier 12a and the tier 2 is set wider than the continuous portion remaining allowance of the tier 2.

本実施例では、捨てティア１２ａが芯材端辺５と交わる点において、展開部３の芯材端辺５と捨てティア１２ａの間の内角が鈍角となるように、捨てティア１２ａの形状を加工している。これにより、図６（ｂ）に示すように、エアバッグの膨張展開の際に、展開部３がヒンジ２ａを軸として回動したとしても、展開部３における芯材端辺５の端部１２ｂは鋭角とならないので、乗員が触れて負傷する危険性を無くすことができる。   In the present embodiment, the shape of the discarded tier 12a is processed so that the interior angle between the core material end side 5 of the developed portion 3 and the discarded tier 12a becomes an obtuse angle at the point where the discarded tier 12a intersects the core material end side 5. is doing. As a result, as shown in FIG. 6B, even when the deploying portion 3 is rotated about the hinge 2a during the inflation and deployment of the airbag, the end portion 12b of the core edge 5 in the deploying portion 3 is used. Since it does not become an acute angle, the risk of injury from the passengers can be eliminated.

以上、本発明の好ましい実施例について詳述したが、本発明は上述した実施例に限定されるものではなく、特許請求の範囲に記載された本発明の要旨の範囲内において、種々の変形、変更が可能である。   The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above-described embodiments, and various modifications may be made within the scope of the gist of the present invention described in the claims. It can be changed.

本発明に係る車両用内装部品を説明するための概略図である。It is the schematic for demonstrating the vehicle interior component which concerns on this invention. （ａ）従来技術に係る車両用内装部品のＡ−Ａ断面図である。（ｂ）従来技術に係る展開部の説明図である。(A) It is AA sectional drawing of the interior component for vehicles which concerns on a prior art. (B) It is explanatory drawing of the expansion | deployment part which concerns on a prior art. 従来技術に係る車両用内装部品の説明図である。It is explanatory drawing of the vehicle interior component which concerns on a prior art. 本発明に係る車両用内装部品の概略図である。It is the schematic of the interior component for vehicles which concerns on this invention. 本発明に係る車両用内装部品の概略図である。It is the schematic of the interior component for vehicles which concerns on this invention. 本発明の第２の実施例に係る車両用内装部品の概略図である。It is the schematic of the vehicle interior component which concerns on the 2nd Example of this invention.

符号の説明Explanation of symbols

１・・・ドアトリム
２・・・テイア
２ａ・・・ヒンジ
３・・・展開部
５・・・芯材端辺
６・・・端末部残し代
７・・・連続部残し代
８・・・エアバッグ
１２・・・捨てテイア
１３・・・開裂基点残し代
２０・・・車体パネル DESCRIPTION OF SYMBOLS 1 ... Door trim 2 ... Tier 2a ... Hinge 3 ... Deployment part
5 ... Core material edge 6 ... Terminal part leaving allowance 7 ... Continuous part leaving allowance 8 ... Airbag 12 ... Discarding tire 13 ... Cleavage base point leaving allowance 20 ... Car body panel

Claims (3)

車体パネルの車室側に取り付けられる内装部品本体と、
前記車体パネルと前記内装部品本体の間の空隙に設置されるエアバッグと、
前記内装部品本体の一部領域に画設され、前記エアバッグが前記車室内へ展開する開口を開くために回動する展開部と、
前記エアバッグの膨張圧による前記展開部の回動を可能とするために、前記内装部品本体において、前記展開部を画する境界線上に加工された複数のティアと、を備え、
前記内装部品本体の端辺において、前記ティアが前記端辺に達し、前記境界線の開裂の起点となることを特徴とする車両用内装部品。 An interior part body mounted on the vehicle body side of the vehicle body panel;
An airbag installed in a gap between the vehicle body panel and the interior component body;
A deployment part that is provided in a partial region of the interior part main body and rotates to open an opening through which the airbag is deployed into the vehicle interior;
In order to enable rotation of the deployment part due to the inflation pressure of the airbag, the interior part main body includes a plurality of tiers processed on a boundary line that defines the deployment part,
The interior part for a vehicle according to claim 1, wherein the tier reaches the end side at an end side of the interior part main body, and serves as a starting point of the boundary line. 前記複数ティアは、所定の間隔をもって加工され、前記内装部品本体の端辺近傍におけるティアとティアの間隔が、他の部分より広いことを特徴とする請求項１に記載の車両用内装部品。 2. The vehicle interior part according to claim 1, wherein the plurality of tiers are processed with a predetermined interval, and a distance between tiers and tiers in the vicinity of an end side of the interior part body is wider than other parts. 前記展開部の前記端辺と、前記端辺に達するテイアとの交点における前記展開部の端辺と前記ティアの間の内角が鈍角であることにより、前記展開部が回動した後の前記展開部の両端における形状が鋭角を有しないことを特徴とする請求項１ないし２に記載の車両用内装部品。
The unfolding after the unfolding portion has been rotated by the obtuse angle between the end side of the unfolding portion and the tier at the intersection of the end side of the unfolding portion and the tear reaching the end side. The interior part for a vehicle according to claim 1 or 2, wherein the shape at both ends of the part does not have an acute angle.
JP2008189011A 2008-07-22 2008-07-22 Interior parts for vehicles Active JP5088744B2 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0516756A (en) * 1991-07-09 1993-01-26 Toyoda Gosei Co Ltd Steering wheel pad for air bag
JPH11301368A (en) * 1998-04-15 1999-11-02 Toyota Motor Corp Front pillar garnish structure housing head protective air bag element
JP2006088731A (en) * 2004-09-21 2006-04-06 Mitsubishi Motors Corp Side door of vehicle
JP2007283865A (en) * 2006-04-14 2007-11-01 Toyota Motor Corp Panel member of vehicle, instrument panel of vehicle using the same, and manufacturing method for airbag door

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0516756A (en) * 1991-07-09 1993-01-26 Toyoda Gosei Co Ltd Steering wheel pad for air bag
JPH11301368A (en) * 1998-04-15 1999-11-02 Toyota Motor Corp Front pillar garnish structure housing head protective air bag element
JP2006088731A (en) * 2004-09-21 2006-04-06 Mitsubishi Motors Corp Side door of vehicle
JP2007283865A (en) * 2006-04-14 2007-11-01 Toyota Motor Corp Panel member of vehicle, instrument panel of vehicle using the same, and manufacturing method for airbag door

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