JP2010120595A - Seal structure in duct connection part - Google Patents

Seal structure in duct connection part Download PDF

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JP2010120595A
JP2010120595A JP2008298333A JP2008298333A JP2010120595A JP 2010120595 A JP2010120595 A JP 2010120595A JP 2008298333 A JP2008298333 A JP 2008298333A JP 2008298333 A JP2008298333 A JP 2008298333A JP 2010120595 A JP2010120595 A JP 2010120595A
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lip
bag
frame
main body
duct
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Kazuhiko Yamashita
和彦 山下
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Kasai Kogyo Co Ltd
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Kasai Kogyo Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To maintain sufficient sealing performance even by use for a long period of time in a seal structure in a connection part of a duct for communicating the ducts with each other when mutually contacting/separating parts built-in with the duct are approached to each other. <P>SOLUTION: The seal member 30 provided on the connection part of the duct is constituted by a frame-like body 31 fixed to an opening 15 of a door trim 11; and a bag-like lip 32 continuously contacted with an outer peripheral edge of the frame-like body 31 and elastically deformed by being compressed at opening/closing of a door. In deformation of the bag-like lip 32, a drawing pattern 35 is applied to at least any one side of a lip opposed surface of the frame-like body 31 and an inner surface 32a of the bag-like lip 32 such that no pseudo vacuum state occurs even if the lip opposed surface of the frame-like body 31 and the inner surface 32a of the bag-like lip are closely adhered to each other and the sealing performance is not reduced. Thereby, the pseudo vacuum state is effectively avoided. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

この発明は、デフロスタダクトを内蔵するドアトリムとインストルメントパネルのように、ダクトを内蔵して接離可能に隣接する部品間でのダクト接続部におけるシール構造に関する。   The present invention relates to a seal structure in a duct connecting portion between adjacent parts that are detachable and have a built-in duct, such as a door trim and an instrument panel that incorporate a defroster duct.

通常、図9に示すように、車両のドアパネル1の室内面側には、ドアトリム2が内装されている。そして、ドアトリム2には、サイドウインドウガラス1aの曇り止めを行なうデフロスタダクト3が内蔵されており、図10に示すように、ドアを閉鎖した際、ドアトリム2のデフロスタダクト3とドアトリム2と隣接するインストルメントパネル4のデフロスタダクト5とが接続するようになっている。   Normally, as shown in FIG. 9, a door trim 2 is provided on the interior side of the door panel 1 of the vehicle. The door trim 2 incorporates a defroster duct 3 for preventing the side window glass 1a from being fogged. As shown in FIG. 10, the door trim 2 is adjacent to the defroster duct 3 and the door trim 2 when the door is closed. The defroster duct 5 of the instrument panel 4 is connected.

更に、ドアトリム2及びインストルメントパネル4に内蔵するデフロスタダクト3,5の開口3a,5a同士を連通させる接続部には、シール部材6が取り付けられている。すなわち、ドアトリム2のインストルメントパネル4に対する合わせ面2aに開口2bが開設され、この開口2bに枠状のシール部材6が装着されている。このシール部材6は、図11、図12に示すように、EPDM(エチレン−プロピレン−ジエン系ゴム材)等の合成ゴム系材料を使用し、射出成形等の成形工法を採用することで所要形状に成形されており、ドアトリム2のインストルメントパネル4に対する合わせ面2aに開設されている開口2bに嵌め込み固着するための枠状本体6aと、この枠状本体6aの外周縁に沿って連接形成される袋状リップ6bとから構成されている。そして、枠状本体6aの係止溝6cをドアトリム2の開口2bの縁部に係着するとともに、脚片6dをドアトリム2の図示しない取付孔内に強制圧入することで、ドアトリム2の開口2bの縁部を覆うようにシール部材6が強固に取り付けられている。   Furthermore, a seal member 6 is attached to a connection portion that connects the openings 3a and 5a of the defroster ducts 3 and 5 built in the door trim 2 and the instrument panel 4. That is, an opening 2b is formed in the mating surface 2a of the door trim 2 with respect to the instrument panel 4, and a frame-like seal member 6 is attached to the opening 2b. As shown in FIGS. 11 and 12, the seal member 6 uses a synthetic rubber material such as EPDM (ethylene-propylene-diene rubber material) and adopts a molding method such as injection molding to have a required shape. A frame-shaped main body 6a for fitting into and fixing to the opening 2b provided in the mating surface 2a of the door trim 2 with respect to the instrument panel 4, and a frame-shaped main body 6a connected to the outer periphery of the frame-shaped main body 6a. And a bag-like lip 6b. Then, the engaging groove 6c of the frame-shaped main body 6a is engaged with the edge of the opening 2b of the door trim 2, and the leg piece 6d is forcibly press-fitted into a mounting hole (not shown) of the door trim 2, thereby opening the opening 2b of the door trim 2. The seal member 6 is firmly attached so as to cover the edge of the.

そして、ドアの開閉操作に伴ないドアトリム2はインストルメントパネル4と接離するが、ドアの開放状態では、図12中実線で示す位置に袋状リップ6bが位置するとともに、ドアを閉鎖した時は袋状リップ6bが圧縮状態となり、図12中点線で示すように弾性変形することで、良好なシール性能を果たしている。尚、ドアトリム2とインストルメントパネル4との間のデフロスタダクト3,5の接続部分にシール部材6を介挿する従来構造としては、特許文献1に詳細に示されている。   When the door is opened and closed, the door trim 2 contacts and separates from the instrument panel 4, but when the door is open, the bag-like lip 6b is positioned at the position indicated by the solid line in FIG. 12, and the door is closed. The bag-like lip 6b is in a compressed state and is elastically deformed as shown by the dotted line in FIG. A conventional structure in which the seal member 6 is inserted in the connecting portion of the defroster ducts 3 and 5 between the door trim 2 and the instrument panel 4 is shown in detail in Patent Document 1.

特開平11−42923号公報JP-A-11-42923

このように、従来では、ドアトリム2のデフロスタダクト3とインストルメントパネル4のデフロスタダクト5との間の接続部の構造としては、ドアトリム2の開口2bに枠状のシール部材6が取り付けられており、ドアを開放した状態では、図12中実線で示すように、枠状本体6aと袋状リップ6bとで有効な内部スペースが確保されているが、ドアを閉鎖した状態では、図12中点線で示す部位まで袋状リップ6bが圧縮変形する。この時、枠状本体6aと袋状リップ6bとが広範囲で密着し、外部とは連通しない閉空間a(図12中斜線で示す)を形成するとともに、一気に内部のエアが外部に排出されるため、袋状リップ6b内部は、一時的に真空に近い状態(以下、擬似真空状態という)となることから、ゴム同士が密着したままの状態となり、ドアを開放した際に袋状リップ6bの形状が基に戻らず、再度ドアを閉鎖した時、良好なシール性能を達成することができないという不具合が指摘されている。   Thus, conventionally, as a structure of the connection portion between the defroster duct 3 of the door trim 2 and the defroster duct 5 of the instrument panel 4, the frame-shaped sealing member 6 is attached to the opening 2 b of the door trim 2. When the door is opened, an effective internal space is secured by the frame-like main body 6a and the bag-like lip 6b as shown by the solid line in FIG. 12, but when the door is closed, the dotted line in FIG. The bag-like lip 6b is compressed and deformed up to the portion indicated by. At this time, the frame-like main body 6a and the bag-like lip 6b are in close contact with each other to form a closed space a (indicated by a slanted line in FIG. 12) that does not communicate with the outside, and the internal air is discharged to the outside at once. Therefore, since the inside of the bag-like lip 6b is temporarily in a vacuum-like state (hereinafter referred to as a pseudo-vacuum state), the rubber remains in close contact with each other, and the bag-like lip 6b is opened when the door is opened. It has been pointed out that when the shape is not restored and the door is closed again, good sealing performance cannot be achieved.

また、枠状のシール部材6は、枠状本体6aの内面と袋状リップ6bの内面とがドアの開閉時に相互に密着、離反するが、その際、密着した状態から袋状リップ6bが離反するために「ペチャ ペチャ」という粘着音が生じ、乗員に不快感を及ぼすことも欠点として指摘されている。更に、従来では、シール部材6における枠状本体6aの内面か、あるいは袋状リップ6bの内面の少なくともいずれか一面にシリコーンオイル等の離型剤を塗布することで対策しているが、細かな部位であるため、離型剤の塗布作業が非常に面倒であり、生産性の低下を招く要因となっている。   Further, the frame-shaped sealing member 6 has the inner surface of the frame-shaped main body 6a and the inner surface of the bag-shaped lip 6b in close contact with each other when the door is opened and closed. It has been pointed out as a drawback that a sticky sound of “pecha-pecha” is generated to cause discomfort to the passengers. Further, conventionally, a countermeasure has been taken by applying a release agent such as silicone oil to at least one of the inner surface of the frame-shaped main body 6a or the inner surface of the bag-like lip 6b in the seal member 6. Since it is a part, the application | coating operation | movement of a mold release agent is very troublesome, and causes the fall of productivity.

この発明は、このような事情に鑑みてなされたもので、デフロスタダクトをそれぞれ内蔵するドアトリムとインストルメントパネルのように、ダクトを内蔵し、接離可能に隣接する部品を近接した時に、ダクトの開口同士がシール部材を介して突き合わされるダクト接続部におけるシール構造であって、長期使用によってもシール部材の初期形状を良好に維持でき、シール性能を長期に亘り精度良く維持できるとともに、ダクトの接離時に粘着音が生じることがないダクト接続部におけるシール構造を提供することを目的としている。   The present invention has been made in view of such circumstances, and when a duct is incorporated and adjacent components are brought close to each other, such as a door trim and an instrument panel each incorporating a defroster duct, It is a seal structure in a duct connection part where openings are abutted via a seal member, and the initial shape of the seal member can be maintained well even with long-term use, and the sealing performance can be maintained with accuracy over a long period of time. It is an object of the present invention to provide a seal structure in a duct connection portion that does not generate an adhesive sound during contact and separation.

上記課題を解決するために、本発明者は鋭意研究の結果、枠状本体と枠状本体の外周縁に連接し、シール部材の厚み方向に膨出するように袋状に形成された袋状リップとからなるシール部材の形状に工夫を施し、特に、袋状リップが圧縮されて弾性変形する際、袋状リップと枠状本体内面との接地面積を低減することで、袋状リップ内の擬似真空状態を解消できることに着目し、本発明を完成するに至った。   In order to solve the above-mentioned problems, the present inventor, as a result of earnest research, connected to the outer periphery of the frame-shaped main body and the frame-shaped main body, and formed into a bag shape so as to bulge in the thickness direction of the seal member. The shape of the sealing member made of the lip is devised, and in particular, when the bag-like lip is compressed and elastically deformed, by reducing the ground contact area between the bag-like lip and the inner surface of the frame-like body, Focusing on the fact that the pseudo vacuum state can be eliminated, the present invention has been completed.

すなわち、本発明は、接離可能に隣接する部品同士を近接した際、上記部品に内蔵したダクトの開口がシール部材を介して突き合わされるダクト接続部におけるシール構造であって、上記シール部材は、一方側の部品の開口縁部に装着される枠状本体と、この枠状本体の外周縁に連接され、上記シール部材の厚み方向に膨出する袋状リップとから構成され、上記部品の近接時には、袋状リップが枠状本体に向けて圧縮変形することでシール機能を発揮するダクト接続部におけるシール構造において、前記シール部材は、枠状本体のリップ対向面と、袋状リップの内面の少なくともいずれか一方側に絞模様が施されていることにより、部品の近接時には、袋状リップが枠状本体側に押圧され、枠状本体のリップ対向面と袋状リップの内面とが当接する際、上記絞模様により両者の接地面積が低減され、両者間に空気通路が形成されることにより、袋状リップ内の擬似真空状態を回避できるようにしたことを特徴とする。   That is, the present invention is a seal structure in a duct connecting portion where an opening of a duct built in the component is abutted via a seal member when adjacent components that are detachable are brought close to each other. The frame-shaped main body mounted on the opening edge of the one-side component, and the bag-shaped lip that is connected to the outer peripheral edge of the frame-shaped main body and bulges in the thickness direction of the seal member. In the seal structure in the duct connecting portion that exhibits a sealing function by compressing and deforming the bag-shaped lip toward the frame-shaped main body when close to each other, the seal member includes the lip facing surface of the frame-shaped main body and the inner surface of the bag-shaped lip. When the parts are close to each other, the bag-like lip is pressed against the frame-like main body side so that the lip facing surface of the frame-like main body and the inner surface of the bag-like lip are in contact with each other. To time, the grounded area of both the grain pattern reduces, by the air passage is formed therebetween, characterized in that to be able to avoid a pseudo vacuum in the bag-shaped lip.

ここで、ダクトを内蔵し、相互に接離可能に隣接する部品の一例としては、デフロスタダクトを内蔵するドアトリムと、デフロスタダクトを内蔵するインストルメントパネルがある。   Here, as an example of components that have a built-in duct and are adjacent to each other so as to be close to and away from each other, there are a door trim having a built-in defroster duct and an instrument panel having a built-in defroster duct.

更に、本発明に係るシール構造に使用する枠状のシール部材は、EPDM(エチレン−プロピレン−ジエン系ゴム材)等の合成ゴム系材料を使用し、射出成形等の成形工法を採用することで所要形状に成形されており、このシール部材は、一方側の部品に開設した開口の縁部に嵌め込み固着する枠状本体と、枠状本体の外周縁に連接する袋状リップとから構成されている。また、枠状本体は、一方側の部品に開設した開口の縁部に枠状本体に設けた係止用溝部を嵌め込み固着するとともに、枠状本体にストッパ付き脚片を複数個付設し、開口のやや外側に沿って複数箇所に設けた取付孔内にストッパ付き脚片を挿入し、先端を引っ張ることで取付孔内に強制圧入して、ストッパが抜け止め片として機能することでシール部材を部品の開口縁部に確実に取り付けることができる。   Furthermore, the frame-like seal member used in the seal structure according to the present invention uses a synthetic rubber material such as EPDM (ethylene-propylene-diene rubber material) and adopts a molding method such as injection molding. The seal member is formed into a required shape, and is composed of a frame-like main body that fits and is fixed to the edge of the opening formed in the part on one side, and a bag-like lip connected to the outer peripheral edge of the frame-like main body. Yes. In addition, the frame-shaped main body is fitted with a locking groove provided in the frame-shaped main body at the edge of the opening opened in the part on one side and fixed, and a plurality of leg pieces with stoppers are attached to the frame-shaped main body. Insert the leg pieces with stoppers into the mounting holes provided at multiple locations along the slightly outer side, and force-press into the mounting holes by pulling the tip, so that the stopper functions as a retaining piece and the sealing member It can be securely attached to the opening edge of the part.

そして、上述したように、本発明に使用するシール部材は、部品の開口縁に取り付ける枠状本体と、部品同士を近接してダクトを突き合わせる際に弾性変形してシール機能を発揮する袋状リップとから構成されているが、シール部材における枠状本体のリップ対向面か、あるいは袋状リップの内面の少なくともいずれか一方側に絞模様が施されていることが特徴である。この絞模様としては、皮革模様、梨地模様、あるいは幾何学模様等、絞模様の形状は特に限定するものではない。更に、絞模様を形成する部位としては、枠状本体のリップ対向面と袋状リップの内面との双方に設けても良く、また、枠状本体のリップ対向面のみ、または袋状リップの内面のみのように限定的に設けることも可能であるが、袋状リップの内面だけに絞模様を施した場合には、袋状リップの圧縮変形時に絞模様が伸ばされ、平滑面に近い状態となる恐れがあるため、実際的には枠状本体のリップ対向面のみか、枠状本体のリップ対向面と袋状リップの内面の双方に設けるのが好ましい。   And as mentioned above, the sealing member used in the present invention is a bag-like body that attaches to the opening edge of the component and a bag shape that elastically deforms when the components are brought close to each other and a duct is abutted to exert a sealing function. The lip is characterized in that a drawn pattern is applied to at least one of the lip-facing surface of the frame-like main body and the inner surface of the bag-like lip in the seal member. The shape of the drawn pattern is not particularly limited, such as a leather pattern, a satin pattern, or a geometric pattern. Furthermore, as a part for forming the drawn pattern, it may be provided on both the lip facing surface of the frame-shaped main body and the inner surface of the bag-shaped lip, or only the lip facing surface of the frame-shaped main body, or the inner surface of the bag-shaped lip. However, when the squeezed pattern is applied only to the inner surface of the bag-like lip, the squeezed pattern is stretched during compression deformation of the bag-like lip, and the state is close to a smooth surface. Therefore, in practice, it is preferable to provide only on the lip facing surface of the frame-shaped main body or on both the lip facing surface of the frame-shaped main body and the inner surface of the bag-shaped lip.

以上の構成から明らかなように、シール部材における枠状本体のリップ対向面か、あるいは袋状リップの内面の少なくともいずれか一方側には、絞模様が施されているため、部品を近接して、ダクトの開口同士を突き合わせる際、袋状リップが枠状本体のリップ対向面に対してかなりの力で押圧され、枠状本体のリップ対向面と袋状リップ内面とが密着しても、絞模様により両者の接地面積が低減されているため、袋状リップ内には空気通路が形成されて、擬似真空状態とはならないことから、袋状リップに加わる外力が解除されれば、袋状リップは即座に基形状に戻り、部品同士の接離動作を繰り返し行なっても、ダクト接続部において良好なシール性能を維持することができるとともに、接離動作の度に袋状リップが変形する際に生じる不快な粘着音も抑えることができる。また面倒な離型剤の塗布作業を廃止できる。   As is clear from the above configuration, a drawing pattern is provided on at least one of the lip-facing surface of the frame-shaped main body and the inner surface of the bag-like lip in the seal member, When the openings of the duct are butted together, the bag-like lip is pressed with a considerable force against the lip facing surface of the frame-shaped main body, and even if the lip facing surface of the frame-shaped main body and the bag-shaped lip inner surface are in close contact, Since the contact area between the two is reduced by the squeezed pattern, an air passage is formed in the bag-like lip, and a pseudo vacuum state is not created, so if the external force applied to the bag-like lip is released, the bag-like lip The lip immediately returns to the basic shape, and even when the parts are repeatedly contacted and separated, good sealing performance can be maintained at the duct connection, and the bag-like lip is deformed each time the parts are contacted and separated. Arise in Free Do adhesive sound can also be suppressed. Moreover, the troublesome application of the release agent can be abolished.

以上説明した通り、本発明に係るダクト接続部におけるシール構造によれば、接離可能に隣接する部品同士を近接した際、部品に内蔵されたダクトの開口が合わさり、その接続部に使用されるシール部材は、一方側の部品の開口縁に取り付けられる枠状本体と、弾性変形可能な袋状リップとからなり、枠状本体のリップ対向面と、袋状リップの内面の少なくともいずれか一方側に絞模様を施すという構成が採用されている。   As described above, according to the seal structure in the duct connecting portion according to the present invention, when adjacent components are brought close to each other so as to be able to come in contact with each other, the openings of the ducts built in the components are combined and used for the connecting portion. The seal member includes a frame-like main body attached to the opening edge of the component on one side and an elastically deformable bag-like lip, and at least one side of the lip-facing surface of the frame-like main body and the inner surface of the bag-like lip A configuration is used in which a squeezed pattern is applied.

従って、部品同士を近接して、ダクトの開口を連通させた際、袋状リップは枠状本体側に押圧されて弾性変形はするものの、枠状本体のリップ対向面と袋状リップの内面とが密着する際、絞模様が施されているため、両者の接地面積が低減され、空気通路が形成されることから、枠状本体のリップ対向面と袋状リップの内面との間は擬似真空状態にならない。その結果、袋状リップに加わる外力が解除されれば、袋状リップは基形状に戻り、繰り返し使用によっても初期形状を良好に維持でき、シール性能を長期に亘り良好に保つことができるとともに、袋状リップが弾性変形する際に生じる不快な粘着音の発生を抑えることができ、しかも従来必要とした離型剤の塗布作業を廃止でき、生産性を向上させることができるという効果を有する。   Therefore, when the parts are brought close to each other and the opening of the duct is communicated, the bag-shaped lip is pressed toward the frame-shaped main body and elastically deforms, but the lip-facing surface of the frame-shaped main body and the inner surface of the bag-shaped lip Since the squeezed pattern is applied when the two come into close contact with each other, the ground contact area between the two is reduced and an air passage is formed. Therefore, a pseudo-vacuum is formed between the lip facing surface of the frame-shaped body and the inner surface of the bag-shaped lip. It will not be in a state. As a result, if the external force applied to the bag-like lip is released, the bag-like lip returns to the basic shape, the initial shape can be maintained well even after repeated use, and the sealing performance can be kept good for a long time, It is possible to suppress the generation of unpleasant adhesive sound that occurs when the bag-like lip is elastically deformed. In addition, it is possible to abolish the conventionally required release agent application operation and to improve productivity.

以下、本発明に係るダクト接続部におけるシール構造の好ましい実施例について、添付図面を参照しながら詳細に説明する。尚、念のため付言すれば、本発明の要旨は特許請求の範囲に記載した通りであり、以下に説明する実施例の内容は、本発明の一例を単に示すものに過ぎない。   Hereinafter, a preferred embodiment of a seal structure in a duct connecting portion according to the present invention will be described in detail with reference to the accompanying drawings. Note that the gist of the present invention is as described in the scope of claims, and the contents of the embodiments described below are merely examples of the present invention.

図1乃至図8は本発明の一実施例を示すもので、図1は本発明に係るシール構造を車両のデフロスタダクトの接続部におけるシール構造に適用した実施例を示す説明図、図2は同デフロスタダクトの接続部の構成を示す断面図、図3乃至図5は本発明に係るシール構造に使用するシール部材を示す平面図並びに断面図、図6,図7は同シール部材の作用を示す各説明図、図8は本発明に係るシール構造に使用するシール部材の変形例を示す断面図である。   1 to 8 show an embodiment of the present invention. FIG. 1 is an explanatory view showing an embodiment in which the seal structure according to the present invention is applied to a seal structure at a connecting portion of a vehicle defroster duct, and FIG. FIG. 3 to FIG. 5 are plan views and sectional views showing a seal member used in the seal structure according to the present invention, and FIGS. 6 and 7 show the operation of the seal member. Each explanatory drawing shown, FIG. 8 is sectional drawing which shows the modification of the sealing member used for the sealing structure based on this invention.

図1において、車両のドアパネル10の室内面側にドアトリム11が内装されている。そして、このドアトリム11の上縁には、ドアパネル10のサイドウインドウガラス12の曇り止めを行なうサイドデフロスタグリル13が取り付けられており、このサイドデフロスタグリル13にエアを供給するデフロスタダクト14がドアトリム11に内蔵されている。このデフロスタダクト14の一方端はサイドデフロスタグリル13に開口しているが、他方端の開口14aは、ドアトリム11におけるインストルメントパネル20に対する合わせ面11aに開設した開口15を通して外部に臨み、インストルメントパネル20側に対向している。また、インストルメントパネル20においても、ドアトリム11に内蔵するデフロスタダクト14にエアを供給するためのデフロスタダクト21が内蔵されており、このデフロスタダクト21の開口21aを外部に臨ませ、ドアトリム11側のデフロスタダクト14の開口14aと対向できるように、インストルメントパネル20についても開口22が設けられている。   In FIG. 1, a door trim 11 is provided on the interior surface side of a door panel 10 of a vehicle. A side defroster grill 13 for preventing fogging of the side window glass 12 of the door panel 10 is attached to the upper edge of the door trim 11, and a defroster duct 14 for supplying air to the side defroster grill 13 is attached to the door trim 11. Built in. One end of the defroster duct 14 opens to the side defroster grill 13, but the opening 14 a at the other end faces the outside through an opening 15 formed in the mating surface 11 a of the door trim 11 with respect to the instrument panel 20. It faces the 20 side. The instrument panel 20 also includes a defroster duct 21 for supplying air to the defroster duct 14 built in the door trim 11. The opening 21 a of the defroster duct 21 is exposed to the outside, and the door trim 11 side is provided. An opening 22 is also provided in the instrument panel 20 so as to face the opening 14a of the defroster duct 14.

ところで、本発明は、ドアトリム11側のデフロスタダクト14とインストルメントパネル20側のデフロスタダクト21との接続部におけるシール構造に特徴がある。すなわち、ドアトリム11の開口15に枠状のシール部材30が装着されており、このシール部材30の形状に工夫が施されている。上記シール部材30は、図2に示すように、ドアを閉鎖した状態ではドアトリム11に内蔵するデフロスタダクト14の開口14aとインストルメントパネル20内に内蔵されているデフロスタダクト21の開口21aを外部にエア漏れすることがなく連通するように、シール部材30がドアトリム11における開口15に強固に固着されている。   By the way, this invention has the characteristics in the seal structure in the connection part of the defroster duct 14 by the side of the door trim 11 and the defroster duct 21 by the side of the instrument panel 20. That is, a frame-like seal member 30 is attached to the opening 15 of the door trim 11, and the shape of the seal member 30 is devised. As shown in FIG. 2, when the door is closed, the sealing member 30 opens the opening 14a of the defroster duct 14 built in the door trim 11 and the opening 21a of the defroster duct 21 built in the instrument panel 20 to the outside. The seal member 30 is firmly fixed to the opening 15 in the door trim 11 so as to communicate without causing air leakage.

次いで、シール部材30の構成について、図3乃至図5に基づいて詳細に説明する。このシール部材30は、ドアトリム11の開口15とほぼ同一形状をなす枠状に形状設定がなされており、ドアトリム11の開口15縁部に取り付けられる枠状本体31と、この枠状本体31の外周縁に連接して、シール部材30の厚み方向に膨出するように袋状に形成された袋状リップ32とから構成されている。そして、この袋状リップ32がドアの開閉時に弾性変形することで良好なシール性能が得られるように、シール部材30に使用する素材としては、EPDM(エチレン−プロピレン−ジエン系ゴム材)で代表される合成ゴム系材料等の軟質材料を使用し、射出成形等の成形工法を採用することで図3乃至図5に示す形状に成形されている。   Next, the configuration of the seal member 30 will be described in detail with reference to FIGS. 3 to 5. The seal member 30 is set in a frame shape that has substantially the same shape as the opening 15 of the door trim 11, a frame-shaped main body 31 that is attached to the edge of the opening 15 of the door trim 11, and an outer side of the frame-shaped main body 31. It is comprised from the bag-like lip 32 formed in the bag shape so that it may be connected to the periphery and swell in the thickness direction of the sealing member 30. The material used for the seal member 30 is typically represented by EPDM (ethylene-propylene-diene rubber material) so that the bag-like lip 32 is elastically deformed when the door is opened and closed to obtain a good sealing performance. It is molded into the shape shown in FIGS. 3 to 5 by using a soft material such as a synthetic rubber material and adopting a molding method such as injection molding.

更に詳しくは、シール部材30における枠状本体31は、ドアトリム11の開口15縁部に嵌め込み固着できるように係止用溝33が外方に向けて開口するように形成されており、図3,図4に示すように、ドアトリム11の開口15のやや外側に沿って所定間隔で開設されている複数の取付孔16に対して挿通固定するストッパ付き脚片34が枠状本体31の下面に所定ピッチ間隔で設けられている。従って、シール部材30をドアトリム11の開口15に取り付けるには、上述したように、枠状本体31における係止用溝33をドアトリム11の開口15縁部に図4中矢印で示すように嵌め込むと同時に、開口15周りの取付孔16内にストッパ付き脚片34を取付孔16内に挿入し、ドアトリム11の裏面側からストッパ付き脚片34の先端を内方に向けて引き込み、ストッパ34aを取付孔16を乗り超えさせ、取付孔16の裏側に位置するまで引き込めば、シール部材30の取付後はストッパ34aが有効に機能し、シール部材30の取付強度を強化することができる。   More specifically, the frame-shaped main body 31 of the seal member 30 is formed so that the locking groove 33 is opened outward so that it can be fitted and fixed to the edge of the opening 15 of the door trim 11. As shown in FIG. 4, a leg piece 34 with a stopper that is inserted and fixed to a plurality of mounting holes 16 that are opened at a predetermined interval along the slightly outer side of the opening 15 of the door trim 11 is provided on the lower surface of the frame-shaped main body 31. It is provided at pitch intervals. Therefore, in order to attach the seal member 30 to the opening 15 of the door trim 11, as described above, the locking groove 33 in the frame-shaped main body 31 is fitted into the edge of the opening 15 of the door trim 11 as shown by the arrow in FIG. At the same time, the stopper-attached leg piece 34 is inserted into the attachment hole 16 around the opening 15, and the tip of the stopper-attached leg piece 34 is drawn inward from the back side of the door trim 11, and the stopper 34 a is inserted. If the mounting hole 16 is moved over and retracted until it is located on the back side of the mounting hole 16, the stopper 34a functions effectively after the sealing member 30 is mounted, and the mounting strength of the sealing member 30 can be enhanced.

更に、本発明に使用するシール部材30は、繰り返し使用によっても初期形状を忠実に復元でき、良好なシール機能を発揮するように、この実施例では、枠状本体31のリップ対向面31a及び袋状リップ32の内面32aの双方の面に絞模様35が絞加工されている。このように、本実施例におけるシール部材30は、枠状本体31のリップ対向面31aと、袋状リップ32の内面32aの双方の面に絞模様35が施されていることが構成上の特徴であるが、その作用効果について図6,図7を基に説明する。尚、図6はドアを開放した状態で袋状リップ32には外力が加わっておらず、袋状リップ32の基形状はシール部材30の厚み方向に沿って膨出状に設定されている。また、図7はドアを閉鎖した状態を示しており、袋状リップ32は、インストルメントパネル20側からの押圧力により、枠状本体31側に向けて密着する方向に付勢されている。そして、図6に示すドアの開放状態においては、袋状リップ32に外力が加わっていないため、袋状リップ32は枠状本体31のリップ対向面31aとの間に有効なスペースを確保した袋状となっている。   Furthermore, in this embodiment, the sealing member 30 used in the present invention can faithfully restore the initial shape even after repeated use, and exhibits a good sealing function. In this embodiment, the lip facing surface 31a and the bag of the frame-shaped main body 31 are used. The drawn pattern 35 is drawn on both surfaces of the inner surface 32 a of the lip 32. As described above, the sealing member 30 according to the present embodiment is characterized in that the drawing pattern 35 is provided on both the lip facing surface 31a of the frame-shaped main body 31 and the inner surface 32a of the bag-like lip 32. However, the function and effect will be described with reference to FIGS. In FIG. 6, no external force is applied to the bag-like lip 32 with the door opened, and the base shape of the bag-like lip 32 is set to bulge out along the thickness direction of the seal member 30. Moreover, FIG. 7 has shown the state which closed the door, and the bag-like lip 32 is urged | biased in the direction closely_contact | adhered toward the frame-shaped main body 31 side with the pressing force from the instrument panel 20 side. 6, since no external force is applied to the bag-shaped lip 32, the bag-shaped lip 32 is a bag in which an effective space is secured between the lip-facing surface 31a of the frame-shaped main body 31. It has become a shape.

そして、ドアを閉鎖すれば、図6中矢印方向にインストルメントパネル20からの押圧力が加わり、図7に示すように、袋状リップ32が枠状本体31側に向けて圧縮されて弾性変形する。この時、枠状本体31のリップ対向面31aと、袋状リップ32の内面32aとが当接するが、双方の面には絞模様35が施されているため、両者の接地面積が低減され、両者間に空気通路Aが形成され、擬似真空状態になることがなく、袋状リップ32が枠状本体31のリップ対向面31aに密着したままで基形状に復帰しないという不具合がなくなり、袋状リップ32は即座に基形状に復帰することから、シール部材30のシール性能を良好に保つことができる。   When the door is closed, a pressing force from the instrument panel 20 is applied in the direction of the arrow in FIG. 6, and the bag-like lip 32 is compressed toward the frame-shaped main body 31 as shown in FIG. To do. At this time, the lip facing surface 31a of the frame-shaped main body 31 and the inner surface 32a of the bag-shaped lip 32 abut, but since both sides are provided with a squeezed pattern 35, the ground contact area of both is reduced, The air passage A is formed between the two, so that there is no pseudo-vacuum state, and the bag-like lip 32 remains in close contact with the lip-facing surface 31a of the frame-like main body 31 and does not return to the basic shape. Since the lip 32 immediately returns to the base shape, the sealing performance of the sealing member 30 can be kept good.

更に、シール部材30における枠状本体31のリップ対向面31aと袋状リップ32の内面32aの双方の面に絞模様35を施すことで、袋状リップ32が圧縮変形する際に擬似真空状態とはならないため、粘着音が生じることがなく、乗員が不快な印象をもつことがないとともに、従来必要としたシリコーンオイル等の離型剤を塗布する作業を廃止できるため、工数を削減できる効果もある。   Further, by applying a drawing pattern 35 to both the lip facing surface 31a of the frame-shaped main body 31 and the inner surface 32a of the bag-like lip 32 in the seal member 30, a pseudo-vacuum state is obtained when the bag-like lip 32 is compressed and deformed. Because there is no sticky sound, the passenger does not have an unpleasant impression, and the work of applying a release agent such as silicone oil, which has been required in the past, can be abolished. is there.

上述した実施例は、シール部材30における枠状本体31のリップ対向面31aと、袋状リップ32の内面32aの双方の面に絞模様35を施したが、図8に示すように、枠状本体31のリップ対向面31aだけに絞模様35を施すことで、絞付加工を簡素化することができる。この図8に示す変形例においても、ドアを閉鎖した状態、すなわち、袋状リップ32が圧縮される際は、枠状本体31のリップ対向面31aに形成された絞模様35により枠状本体31のリップ対向面31aと袋状リップ32の内面32aとの接地面積は低減されており、擬似真空状態が解消されるため、良好なシール性能が維持できることは上述実施例と同一である。特に、袋状リップ32の内面32aに絞模様35を施しても、絞模様35が袋状リップ32の圧縮変形時に変形する恐れがあるため、袋状リップ32の内面32aに施す絞模様35を省略するのが現実的である。   In the embodiment described above, the squeezed pattern 35 is provided on both the lip facing surface 31a of the frame-like main body 31 and the inner surface 32a of the bag-like lip 32 in the seal member 30, but as shown in FIG. The drawing process can be simplified by applying the drawing pattern 35 only to the lip facing surface 31a of the main body 31. Also in the modified example shown in FIG. 8, when the door is closed, that is, when the bag-like lip 32 is compressed, the frame-like main body 31 is formed by the drawn pattern 35 formed on the lip-facing surface 31 a of the frame-like main body 31. The ground contact area between the lip facing surface 31a and the inner surface 32a of the bag-like lip 32 is reduced, and the pseudo vacuum state is eliminated, so that good sealing performance can be maintained as in the above embodiment. In particular, even if the squeezed pattern 35 is applied to the inner surface 32a of the bag-like lip 32, the squeezed pattern 35 may be deformed when the bag-like lip 32 is compressed and deformed. It is realistic to omit it.

以上説明した実施例は、ドアトリム11及びインストルメントパネル20にそれぞれ内蔵されるデフロスタダクト14,21における接続部のシール構造に本発明を適用したが、ダクトの種類や部品を限定するものではなく、ダクトを内蔵して、接離可能に隣接する部品におけるシール構造全般に適用することができる。更に、絞模様35のパターン形状、あるいはシール部材30の細かな形状や、ドアトリム11に対する取付構造を適宜変更することもできる。   In the embodiment described above, the present invention is applied to the sealing structure of the connecting portion in the defroster ducts 14 and 21 respectively incorporated in the door trim 11 and the instrument panel 20, but the type and parts of the duct are not limited. A duct is built in and can be applied to general sealing structures in adjacent parts that can be brought into contact with and separated from each other. Furthermore, the pattern shape of the stop pattern 35, the fine shape of the seal member 30, and the mounting structure for the door trim 11 can be changed as appropriate.

本発明に係るシール構造をドアトリム及びインストルメントパネルのデフロスタダクトの接続部に適用した実施例を示す説明図である。It is explanatory drawing which shows the Example which applied the seal structure which concerns on this invention to the connection part of the defroster duct of a door trim and an instrument panel. ドアトリム及びインストルメントパネルのデフロスタダクトの接続部におけるシール構造を示す断面図である。It is sectional drawing which shows the seal structure in the connection part of the defroster duct of a door trim and an instrument panel. 本発明に係るシール構造に使用するシール部材の一実施例を示す平面図である。It is a top view which shows one Example of the sealing member used for the sealing structure which concerns on this invention. 図3中IV−IV線断面図である。FIG. 4 is a sectional view taken along line IV-IV in FIG. 3. 図3中V −V 線断面図である。FIG. 5 is a sectional view taken along line V-V in FIG. 3. 図3に示すシール部材をドアトリムの開口に取り付けた状態を示す断面図である。It is sectional drawing which shows the state which attached the sealing member shown in FIG. 3 to opening of a door trim. 図3に示すシール部材の作用を示す断面図である。It is sectional drawing which shows the effect | action of the sealing member shown in FIG. 本発明に係るシール構造に使用するシール部材の変形例を示す説明図である。It is explanatory drawing which shows the modification of the sealing member used for the sealing structure which concerns on this invention. ドアトリムとインストルメントパネルに内蔵するデフロスタダクトの従来のシール構造を示す説明図である。It is explanatory drawing which shows the conventional seal structure of the defroster duct built in a door trim and an instrument panel. 従来のデフロスタダクトの接続部におけるシール構造を示す断面図である。It is sectional drawing which shows the seal structure in the connection part of the conventional defroster duct. 従来のシール構造に使用するシール部材を示す平面図である。It is a top view which shows the sealing member used for the conventional seal structure. 従来のシール構造に使用するシール部材の作用を示す説明図である。It is explanatory drawing which shows the effect | action of the sealing member used for the conventional seal structure.

符号の説明Explanation of symbols

10 ドアパネル
11 ドアトリム
14 デフロスタダクト
14a 開口
15 開口
16 取付孔
20 インストルメントパネル
21 デフロスタダクト
21a 開口
22 開口
30 シール部材
31 枠状本体
31a リップ対向面
32 袋状リップ
32a 内面
33 係止用溝
34 ストッパ付き脚片
35 絞模様
A 空気通路
DESCRIPTION OF SYMBOLS 10 Door panel 11 Door trim 14 Defroster duct 14a Opening 15 Opening 16 Mounting hole 20 Instrument panel 21 Defroster duct 21a Opening 22 Opening 30 Sealing member 31 Frame-shaped main body 31a Lip opposing surface 32 Bag-like lip 32a Inner surface 33 Locking groove 34 With stopper Leg piece 35 Drawing A A Air passage

Claims (1)

接離可能に隣接する部品(11,20)同士を近接した際、上記部品(11,20)に内蔵したダクト(14,21)の開口(14a,21a)がシール部材(30)を介して突き合わされるダクト接続部におけるシール構造であって、上記シール部材(30)は、一方側の部品(11)の開口(15)縁部に装着される枠状本体(31)と、この枠状本体(31)の外周縁に連接され、上記シール部材(30)の厚み方向に膨出する袋状リップ(32)とから構成され、上記部品(11,20)の近接時には、袋状リップ(32)が枠状本体(31)に向けて圧縮変形することでシール機能を発揮するダクト接続部におけるシール構造において、
前記シール部材(30)は、枠状本体(31)のリップ対向面(31a)と、袋状リップ(32)の内面(32a)の少なくともいずれか一方側に絞模様(35)が施されていることにより、部品(11,20)の近接時には、袋状リップ(32)が枠状本体(31)側に押圧され、枠状本体(31)のリップ対向面(31a)と袋状リップ(32)の内面(32a)とが当接する際、上記絞模様(35)により両者の接地面積が低減され、両者間に空気通路(A)が形成されることにより、袋状リップ(32)内の擬似真空状態を回避できるようにしたことを特徴とするダクト接続部におけるシール構造。
When the adjacent parts (11, 20) come close to each other, the openings (14a, 21a) of the ducts (14, 21) built in the parts (11, 20) are interposed via the seal member (30). It is a seal structure in a duct connection part to be faced, and the seal member (30) includes a frame-like main body (31) attached to the edge of the opening (15) of the part (11) on one side, and the frame-like shape. A bag-like lip (32) connected to the outer peripheral edge of the main body (31) and bulging in the thickness direction of the seal member (30). When the parts (11, 20) are close to each other, a bag-like lip ( 32) In the seal structure in the duct connecting portion that exerts a sealing function by being compressed and deformed toward the frame-shaped main body (31),
The sealing member (30) has a squeezed pattern (35) on at least one of the lip facing surface (31a) of the frame-shaped main body (31) and the inner surface (32a) of the bag-like lip (32). Therefore, when the parts (11, 20) are close to each other, the bag-like lip (32) is pressed toward the frame-like main body (31), and the lip-facing surface (31a) of the frame-like main body (31) and the bag-like lip ( When the inner surface (32a) of 32) comes into contact with the inner surface (32a), the ground contact area of the two is reduced by the throttle pattern (35), and an air passage (A) is formed between the two, so that the inside of the bag-like lip (32) A seal structure in a duct connection part characterized in that a pseudo-vacuum state can be avoided.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106255618A (en) * 2014-04-19 2016-12-21 戴姆勒股份公司 There is the motor vehicles of the rear-view mirror device without rearview mirror
JP2020090113A (en) * 2018-12-03 2020-06-11 トヨタ自動車株式会社 Air conditioner for vehicle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0589128U (en) * 1992-05-06 1993-12-03 日野自動車工業株式会社 Vehicle side defroster device
JP2005075168A (en) * 2003-09-01 2005-03-24 Honda Motor Co Ltd Weather strip

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0589128U (en) * 1992-05-06 1993-12-03 日野自動車工業株式会社 Vehicle side defroster device
JP2005075168A (en) * 2003-09-01 2005-03-24 Honda Motor Co Ltd Weather strip

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106255618A (en) * 2014-04-19 2016-12-21 戴姆勒股份公司 There is the motor vehicles of the rear-view mirror device without rearview mirror
JP2017515722A (en) * 2014-04-19 2017-06-15 ダイムラー・アクチェンゲゼルシャフトDaimler AG Automobile having side mirrorless rear view confirmation device
CN106255618B (en) * 2014-04-19 2019-01-15 戴姆勒股份公司 The motor vehicle of rear-view mirror device with no rearview mirror
US10252671B2 (en) 2014-04-19 2019-04-09 Daimler Ag Motor vehicle having a rear view device with no wing mirrors
JP2020090113A (en) * 2018-12-03 2020-06-11 トヨタ自動車株式会社 Air conditioner for vehicle
JP7139919B2 (en) 2018-12-03 2022-09-21 トヨタ自動車株式会社 vehicle air conditioner

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