WO2023286356A1 - Door hole seal structure - Google Patents

Door hole seal structure Download PDF

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Publication number
WO2023286356A1
WO2023286356A1 PCT/JP2022/011755 JP2022011755W WO2023286356A1 WO 2023286356 A1 WO2023286356 A1 WO 2023286356A1 JP 2022011755 W JP2022011755 W JP 2022011755W WO 2023286356 A1 WO2023286356 A1 WO 2023286356A1
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WO
WIPO (PCT)
Prior art keywords
inner panel
outer peripheral
hole seal
opening
peripheral lip
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PCT/JP2022/011755
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French (fr)
Japanese (ja)
Inventor
高山克海
中島孝敏
神宮直樹
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三恵技研工業株式会社
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Publication of WO2023286356A1 publication Critical patent/WO2023286356A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J5/00—Doors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation

Definitions

  • the present invention relates to a door hole seal structure for sealing an opening of an inner panel of an automobile door.
  • the hole seal material is composed of a sheet-shaped seal body made of a foam material and a synthetic resin film laminated and fixed to the seal body, and the opening of the inner panel.
  • the peripheral edge of the synthetic resin film is adhered to the peripheral edge of the hole with a butyl sealant, and the opening is closed with the hole sealant.
  • the present invention is proposed in view of the above problems, and provides a door hole seal structure capable of preventing abnormal noise caused by the hole seal material, improving manufacturing efficiency, and reducing manufacturing costs. intended to provide
  • the door hole seal structure of the present invention has a hole seal material which is the same molding material as a foamed main body portion made of foamed resin and an outer peripheral lip portion made of unfoamed resin, and the hole seal material is used for automobiles.
  • the foam main body is mechanically fixed to the inner panel, and the distal end of the outer peripheral lip portion is arranged at a position corresponding to the peripheral edge of the hole seal material. and the distal end portion of the outer peripheral lip portion is elastically biased against the outer peripheral portion of the opening of the inner panel to maintain a contact state.
  • “mechanically fixed” means fixing by mechanical action such as hook fixing, bolting, screwing, caulking fixing, press-fitting fixing, etc., and chemical fixing such as adhesion is included. Absent.
  • the end portion of the outer peripheral lip portion of the hole seal material is elastically pressed against the outer peripheral portion of the opening of the inner panel, so that a surface pressure is constantly applied without creating a gap, and external pressure is applied.
  • the vibration can be suppressed, thereby preventing the occurrence of abnormal noise (chattering noise) or looseness caused by the external force.
  • the synthetic resin film adhered around the opening of the inner panel does not vibrate and generate abnormal noise, thus preventing the occurrence of abnormal noise caused by the hole seal material.
  • the outer periphery of the hole seal material and the outer periphery of the inner panel opening are kept in contact with each other by pressing the tip of the outer periphery lip portion against the outer periphery of the opening of the inner panel with elastic bias. Sealability and waterproofness between the outer peripheral portion of the hole seal material and the outer peripheral portion of the opening of the inner panel can be ensured without bonding.
  • the door hole seal structure of the present invention is characterized in that the tip portion of the outer peripheral lip portion is formed in a bead shape. According to this, by making the front end portion of the outer peripheral lip portion bead-shaped, the strength of the front end portion of the outer peripheral lip portion can be increased and breakage can be prevented. Furthermore, the contact area between the tip of the outer peripheral lip portion and the outer peripheral portion of the opening of the inner panel can be increased, and the increased contact area increases the pressing force of the tip of the outer peripheral lip portion. , the occurrence of abnormal noise or rattling can be more reliably prevented. In addition, due to this increase in contact area, it is possible to further improve the sealing performance and waterproofness between the outer peripheral portion of the hole seal material and the outer peripheral portion of the opening of the inner panel.
  • an unfoamed standing wall portion made of unfoamed resin is formed on the outer periphery of the foamed main body portion, and the outer peripheral lip portion extends in the thickness direction of the foamed main body portion;
  • the strength of the outer peripheral lip portion or the outer peripheral portion of the hole seal material can be increased by the substantially H-shaped cross section composed of the unfoamed standing wall portion, the standing wall, and the bridging portion, which are made of unfoamed resin. .
  • the substantially H-shaped cross section enhances the elasticity of the outer peripheral lip portion, and further enhances the elastic force and surface pressure with which the tip of the outer peripheral lip portion is elastically pressed against the outer peripheral portion of the opening of the inner panel. be able to. Therefore, it is possible to more reliably obtain the effects of preventing the occurrence of abnormal noise and ensuring sealing performance and waterproofness.
  • the doorhole seal structure of the present invention is characterized in that the bridging portion is formed at a position closer to the inner panel side than the center of the unfoamed standing wall portion in the thickness direction of the foamed body portion. According to this, by forming the bridging portion at a position closer to the inner panel side than the center of the non-foamed standing wall portion, the elasticity of the outer peripheral lip portion is further enhanced, and the tip portion of the outer peripheral lip portion is attached to the inner panel. It is possible to further increase the elastic force and the surface pressure that are pressed against the outer peripheral portion of the opening by elastic biasing.
  • the foam body is hooked and fixed to the periphery of the opening of the inner panel so that a force is applied to draw the foam body toward the opening of the inner panel.
  • the hole seal material can be easily fixed to the inner panel by hooking and fixing the foam main body to the peripheral edge of the inner panel. Further, by hooking and fixing the foamed main body portion so as to apply a force to draw it toward the opening of the inner panel, the tip of the outer peripheral lip portion is elastically biased against the outer peripheral portion of the opening of the inner panel. Elastic force and surface pressure can be further increased.
  • the door hole seal structure of the present invention it is possible to prevent the occurrence of noise caused by the hole seal material and the occurrence of noise caused by an external force, improve manufacturing efficiency, and reduce manufacturing costs. can be done.
  • FIG. 1 is a front view of an automobile door having a door hole seal structure according to an embodiment of the present invention
  • (a) is an enlarged view of the A portion of FIG. 2
  • (b) is an enlarged view of the B portion of FIG.
  • (a) is a perspective explanatory view explaining the latching fixation by a latching engagement hole and a latching implement
  • (b) is a perspective explanatory view explaining the latching fixation by a latching hook.
  • 4(a) to 4(c) are process explanatory diagrams for explaining the manufacturing process of the hole seal material in the door hole seal structure of the embodiment.
  • the door hole seal structure of the embodiment according to the present invention is provided in an inner panel 4 arranged between an outer panel 2 and a door trim 3 in an automobile door 1. It is composed of a hole seal material 5 which is the same molding material as the foamed body portion 6 made of foamed resin and the outer peripheral lip portion 7 made of unfoamed resin.
  • the foam body portion 6 of the hole seal material 5 is composed of a foam core layer 61 and a skin layer 62 formed outside the foam core layer 61 .
  • a standing wall portion 63 is formed on the outer periphery of the foamed main body portion 6, and an unfoamed standing wall portion 631 made of unfoamed resin is formed on the outer side of the standing wall portion 63. As shown in FIG.
  • the standing wall portion 63 is provided around the outer side of the core-back trace groove 64 which is a circumferential groove.
  • the outer peripheral lip portion 7 includes an upright wall 71 extending in the thickness direction of the foamed body portion 6 , a lip edge 72 inclined outward from the upright wall 71 toward the inner panel 4 , and an unfoamed upright wall portion 631 . It is composed of a cross-linking portion 73 made of unfoamed resin that connects the standing wall 71 so as to form a substantially H-shaped cross section.
  • the lip edge 72 in the illustrated example is formed so as to curve and incline in a substantially arc shape from the end of the standing wall 71 , and the tip portion 721 is disposed at a position that serves as the peripheral edge of the hole seal material 5 . It is shaped like an edge.
  • the bridging portion 73 in the illustrated example is formed at a position closer to the inner panel 4 than the center of the unfoamed standing wall portion 631 in the thickness direction of the foamed body portion 6 , so that the unfoamed standing wall portion 631 and the standing wall 71 are formed. is erected on
  • a hook engaging hole 65 configured by a portion protruding in a substantially U shape and a hook formed with a hook facing outward are provided. Stop hooks 66 are provided at a plurality of predetermined locations, respectively, and are integrally formed as part of the skin layer 62 of the foam body portion 6 . A separate fastener 8 is inserted into and engaged with the fastener engaging hole 65 .
  • the hole seal material 5 is arranged so as to block the opening 41 of the inner panel 4 , and the foam main body 6 is mechanically fixed to the inner panel 4 .
  • the hanging hook 66 is hooked inside the peripheral edge 42 of the opening 41 of the inner panel 4
  • the tip hook 81 of the fastener 8 engaged with the fastener engaging hole 65 is attached to the inner panel 4 . 2 to 4). That is, the foam main body 6 is hooked and fixed to the peripheral edge 42 of the opening 41 of the inner panel 4 so that a force is applied to draw the foam main body 6 toward the opening 41 of the inner panel 4 .
  • the tip portion 721 of the outer peripheral lip portion 7 of the hole seal material 5 mechanically fixed to the inner panel 4 by hook fixing is elastically pressed against the outer peripheral portion 43 of the opening 41 of the inner panel 4, and is brought into contact. contact is maintained.
  • a bead-shaped outer peripheral portion 43 of an opening 41 of the inner panel 4 is formed so as to be curved in a substantially arc-like shape outwardly toward the passenger compartment from a peripheral edge 42 extending in a substantially vertical direction.
  • the tip portion 721 is elastically biased to maintain the contact state.
  • Fixed molds 91 and 92 and a movable mold 93 partition and form a cavity 90 having a shape corresponding to a substrate whose thickness is thinner than the height of the standing wall portion 63 .
  • the movable mold 93 is retracted in the direction of the thick two-dot chain line arrow in the drawing.
  • a fixed mold 92 is arranged, and a side surface of a movable mold 93 is arranged on the inner side surface of the cavity having the shape of the standing wall portion 63 .
  • the foamable molten resin MR is injected into the cavity 90 from an injection path for the foamable molten resin (not shown) to fill the cavity.
  • Any appropriate material applicable to the hole sealing material 5 of the automobile door 1 can be used as the foamable molten resin.
  • Amorphous resins such as butadiene/styrene copolymers, mixed resins of PC (polycarbonate) and ABS, thermoplastic elastomers such as olefins, EPDM (ethylene propylene diene rubber), SBR (styrene butadiene rubber) , CR (chloroprene rubber), NBR (nitrile rubber) and other synthetic rubbers are preferably used.
  • the fixed mold 91 is provided with a gap 911 corresponding to the shape of the substantially U-shaped portion forming the hook engaging hole 65 and a gap 912 corresponding to the shape of the hook 66.
  • the gaps 911 and 912 are also filled with the foamable molten resin MR.
  • a metal rod is installed which can move forward and backward within the fixed mold 91 or can be externally attached to and detached from the fixed mold 91, and the foamable molten resin MR is injected and filled. It is sometimes closed with a metal bar so that a shape corresponding to the fastener engaging hole 65 is formed.
  • the movable mold 93 is core-backed in the direction of the thick arrow shown in the figure to foam the foamable molten resin MR, thereby forming the foamed main body portion 6 and the peripheral lip portion 7.
  • a hole seal material 5 is formed.
  • the formed hole seal material 5 is also formed with a substantially U-shaped portion constituting the fastener engaging hole 65 and the retaining hook 66 .
  • the distal end portion 721 of the outer peripheral lip portion 7 of the hole seal material 5 is elastically pressed against the outer peripheral portion 43 of the opening 41 of the inner panel 4, and the outer peripheral portion 43 and the front end portion 721 of the inner panel 4, the front end portion 721 of the outer peripheral lip portion 7 is pressed against the outer peripheral portion 43 of the inner panel 4 by a pressure exceeding the excitation force of the vibration from the outside. It is possible to suppress the vibration by pressing and prevent the occurrence of abnormal noise (chattering noise) or rattling due to external force. Furthermore, the synthetic resin film adhered around the opening 41 of the inner panel 4 does not vibrate and generate abnormal noise, and the generation of abnormal noise caused by the hole seal material 5 can be prevented. . In addition, it is possible to exert a soundproof effect and a sound insulation effect on both the high frequency range and the low frequency range such as road noise.
  • the door hole seal structure of this embodiment does not require the work of applying a butyl sealant to an easily deformable synthetic resin film and adhering it to the inner panel, which improves manufacturing efficiency and reduces manufacturing costs. reduction can be achieved.
  • the tip portion 721 of the outer peripheral lip portion 7 is elastically biased against the outer peripheral portion 43 of the opening 41 of the inner panel 4 to maintain the abutting state. Sealability and waterproofness between the outer peripheral portion of the hole seal material 5 and the outer peripheral portion 43 of the opening 41 of the inner panel 4 can be ensured without bonding to the outer peripheral portion 43 of the opening 41 of the inner panel 4 .
  • the strength of the tip portion 721 of the outer peripheral lip portion 7 can be increased and breakage can be prevented. Furthermore, the contact area due to contact between the tip portion 721 of the outer peripheral lip portion 7 and the outer peripheral portion 43 of the opening 41 of the inner panel 4 can be increased. By increasing the pressing force of 721, it is possible to more reliably prevent the occurrence of abnormal noise or rattling. Moreover, due to this increase in contact area, the sealability and waterproofness between the outer peripheral portion of the hole seal material 5 and the outer peripheral portion 43 of the opening 41 of the inner panel 4 can be further enhanced.
  • the strength of the outer peripheral portion of the outer peripheral lip portion 7 or the hole seal member 5 is increased by the substantially H-shaped cross section composed of the unfoamed standing wall portion 631, the standing wall 71, and the bridging portion 73, which are made of unfoamed resin. can be done.
  • the substantially H shape in cross section enhances the elasticity of the outer peripheral lip portion 7, and the elastic force of the tip portion 721 of the outer peripheral lip portion 7 being elastically pressed against the outer peripheral portion 43 of the opening 41 of the inner panel 4. , the surface pressure can be further increased. Therefore, it is possible to more reliably obtain the effects of preventing the occurrence of abnormal noise and ensuring sealing performance and waterproofness.
  • the bridging portion 73 at a position closer to the inner panel 4 than the center of the unfoamed standing wall portion 631, the elasticity of the outer peripheral lip portion 7 is further enhanced, and the distal end portion 721 of the outer peripheral lip portion 7 is It is possible to further increase the elastic force and the surface pressure of the outer peripheral portion 43 of the opening 41 of the inner panel 4 that is elastically biased.
  • the hole seal material 5 can be easily fixed to the inner panel 4 . Further, by hooking and fixing the foam main body 6 so as to apply a force to pull the foam main body 6 toward the opening 41 of the inner panel 4 , the tip 721 of the outer peripheral lip portion 7 is attached to the outer peripheral portion 43 of the opening 41 of the inner panel 4 . It is possible to further increase the elastic force and the surface pressure that are pressed by elastic biasing.
  • the foam body portion 6 is fixed to the inner panel 4 by hanging.
  • Appropriate arrangements for mechanical fixation to the inner panel are included.
  • mechanically fixed means fixing by mechanical action such as hook fixing, bolting, screwing, caulking fixing, and press-fitting fixing, and does not include chemical fixing such as adhesion.
  • the present invention also includes a configuration in which the shape of the tip portion of the outer peripheral lip portion is in a shape other than a bead shape.
  • the shape of the outer peripheral lip portion in the present invention is also appropriate within the scope of the present invention, and is not limited to the substantially H shape in cross-sectional view of the above embodiment.
  • the present invention can be used when closing the opening of the inner panel of an automobile door.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Seal Device For Vehicle (AREA)

Abstract

This door hole seal structure comprises: a foam body 6 composed of foamed resin; and a hole seal material 5 formed of the same molding material as an outer peripheral lip 7 composed of an unfoamed resin. The hole seal material 5 is disposed so as to block up an opening 41 in an inner panel 4. The foam body 6 is mechanically fixed to the inner panel 4. A leading end 721 of the outer peripheral lip 7 is disposed at a location that becomes a rim of the hole seal material 5. The leading end 721 of the outer peripheral lip 7 is pressed against an outer perimeter 43 of the inner panel 4 by an elastic biasing force so as to keep an abutted state therebetween. This configuration makes it possible to prevent generation of abnormal noise arising from a hole seal material, improve manufacturing efficiency, and reduce manufacturing cost.

Description

ドアホールシール構造Door hole seal structure
　本発明は、自動車用ドアのインナーパネルの開口部をシールするドアホールシール構造に関する。 The present invention relates to a door hole seal structure for sealing an opening of an inner panel of an automobile door.
　自動車用ドアのインナーパネルとアウターパネルとの間の空間には、スピーカ装置やドアロック装置等の各種部品が設けられ、これらの各種部品の取り付け作業用にインナーパネルには開口部が形成されている。そして、この開口部は、特許文献１、２のようなドアホールシール構造で閉塞される。 Various parts such as a speaker device and a door lock device are provided in the space between the inner panel and the outer panel of an automobile door, and openings are formed in the inner panel for mounting these various parts. there is Then, this opening is closed with a door hole seal structure as disclosed in Patent Documents 1 and 2.
　特許文献１、２のドアホールシール構造では、発泡材で形成されたシート状のシール本体と、シール本体に積層して固着された合成樹脂フィルムでホールシール材が構成され、インナーパネルの開口部の周縁部に合成樹脂フィルムの周縁部をブチルシール剤で接着して、ホールシール材で開口部を閉塞するようになっている。 In the door hole seal structures of Patent Documents 1 and 2, the hole seal material is composed of a sheet-shaped seal body made of a foam material and a synthetic resin film laminated and fixed to the seal body, and the opening of the inner panel. The peripheral edge of the synthetic resin film is adhered to the peripheral edge of the hole with a butyl sealant, and the opening is closed with the hole sealant.
特開２０１８－２０９４号公報Japanese Unexamined Patent Application Publication No. 2018-2094 特開２０１８－５８４０２号公報Japanese Patent Application Laid-Open No. 2018-58402
　ところで、上述のような発泡材のシート状のシール本体と、シール本体に積層して固着された合成樹脂フィルムで構成されるホールシール材をインナーパネルの開口部の周縁部に接着する構造では、開口部の周辺において合成樹脂フィルムが振動することにより、異音（ビビリ音）が発生するという問題がある。更に、この構造では、ブチルシール剤を容易に変形する合成樹脂フィルムに塗布して接着する作業を行う必要があるため、製造効率に劣り、製造コストが高くなるという問題もある。 By the way, in a structure in which a hole seal material composed of a sheet-shaped seal body made of a foam material and a synthetic resin film laminated and fixed to the seal body as described above is adhered to the peripheral edge of the opening of the inner panel, There is a problem that an abnormal noise (chattering noise) is generated due to the vibration of the synthetic resin film around the opening. Furthermore, in this structure, since it is necessary to apply the butyl sealant to the easily deformable synthetic resin film and adhere it, there is also the problem that the manufacturing efficiency is inferior and the manufacturing cost is high.
　本発明は上記課題に鑑み提案するものであって、ホールシール材に起因する異音の発生を防止することができると共に、製造効率の向上、製造コストの低減を図ることができるドアホールシール構造を提供することを目的とする。 SUMMARY OF THE INVENTION The present invention is proposed in view of the above problems, and provides a door hole seal structure capable of preventing abnormal noise caused by the hole seal material, improving manufacturing efficiency, and reducing manufacturing costs. intended to provide
　本発明のドアホールシール構造は、発泡樹脂から構成される発泡本体部と、未発泡樹脂で構成される外周リップ部との同一成形材であるホールシール材を有し、前記ホールシール材が自動車用ドアのインナーパネルの開口部を閉塞するように配置され、前記発泡本体部が前記インナーパネルに機械的に固定され、前記外周リップ部の先端部が前記ホールシール材の周縁となる位置に配設され、前記外周リップ部の前記先端部が前記インナーパネルの前記開口部の外周部に弾性付勢で押し当てられて当接状態が維持されていることを特徴とする。尚、ここで「機械的に固定」とは、例えば掛止固定、ボルト締め、ねじ止め、カシメ固定、圧入固定等の力学的作用による固定を意味し、接着のような化学的固定は含まれない。
　これによれば、インナーパネルの開口部の外周部にはホールシール材の外周リップ部の先端部が弾性付勢で押し当てられ、隙間を生ずることなく常に面圧がかかる状態となり、外部からの振動の加振力を超える圧力で外周リップ部の先端部をインナーパネルの外周部に押し付けて振動を抑え込み、外力に起因する異音（ビビリ音）或いはがたつきの発生を防止することができる。更に、インナーパネルの開口部の周辺において接着された合成樹脂フィルムが振動して異音が発生するようなことが無く、ホールシール材に起因する異音の発生を防止することができる。そして、高音域とロードノイズ等の低音域の双方に対して防音効果、遮音効果を発揮することができる。また、ブチルシール剤を容易に変形する合成樹脂フィルムに塗布して接着するような作業が不要であることから、製造効率の向上、製造コストの低減を図ることができる。また、外周リップ部の先端部をインナーパネルの開口部の外周部に弾性付勢で押し当てて当接状態を維持することにより、ホールシール材の外周部とインナーパネルの開口部の外周部との接着をせずとも、ホールシール材の外周部とインナーパネルの開口部の外周部とのシール性、防水性を確保することができる。 The door hole seal structure of the present invention has a hole seal material which is the same molding material as a foamed main body portion made of foamed resin and an outer peripheral lip portion made of unfoamed resin, and the hole seal material is used for automobiles. The foam main body is mechanically fixed to the inner panel, and the distal end of the outer peripheral lip portion is arranged at a position corresponding to the peripheral edge of the hole seal material. and the distal end portion of the outer peripheral lip portion is elastically biased against the outer peripheral portion of the opening of the inner panel to maintain a contact state. Here, "mechanically fixed" means fixing by mechanical action such as hook fixing, bolting, screwing, caulking fixing, press-fitting fixing, etc., and chemical fixing such as adhesion is included. Absent.
According to this, the end portion of the outer peripheral lip portion of the hole seal material is elastically pressed against the outer peripheral portion of the opening of the inner panel, so that a surface pressure is constantly applied without creating a gap, and external pressure is applied. By pressing the tip of the outer peripheral lip portion against the outer peripheral portion of the inner panel with a pressure exceeding the excitation force of the vibration, the vibration can be suppressed, thereby preventing the occurrence of abnormal noise (chattering noise) or looseness caused by the external force. Furthermore, the synthetic resin film adhered around the opening of the inner panel does not vibrate and generate abnormal noise, thus preventing the occurrence of abnormal noise caused by the hole seal material. In addition, it is possible to exert a soundproofing effect and a sound insulation effect on both high-pitched sounds and low-pitched sounds such as road noise. In addition, since it is not necessary to apply the butyl sealant to the easily deformable synthetic resin film and adhere it, the manufacturing efficiency can be improved and the manufacturing cost can be reduced. In addition, the outer periphery of the hole seal material and the outer periphery of the inner panel opening are kept in contact with each other by pressing the tip of the outer periphery lip portion against the outer periphery of the opening of the inner panel with elastic bias. Sealability and waterproofness between the outer peripheral portion of the hole seal material and the outer peripheral portion of the opening of the inner panel can be ensured without bonding.
　本発明のドアホールシール構造は、前記外周リップ部の先端部が玉縁状に形成されていることを特徴とする。
　これによれば、外周リップ部の先端部を玉縁状とすることにより、外周リップ部の先端部の強度を高め、破損を防止することができる。更に、外周リップ部の先端部とインナーパネルの開口部の外周部との当接による接触面積を増加させることができ、この接触面積の増加により、外周リップ部の先端部の押付力を増加させ、異音或いはがたつきの発生をより確実に防止することができる。また、この接触面積の増加により、ホールシール材の外周部とインナーパネルの開口部の外周部とのシール性、防水性をより一層高めることができる。 The door hole seal structure of the present invention is characterized in that the tip portion of the outer peripheral lip portion is formed in a bead shape.
According to this, by making the front end portion of the outer peripheral lip portion bead-shaped, the strength of the front end portion of the outer peripheral lip portion can be increased and breakage can be prevented. Furthermore, the contact area between the tip of the outer peripheral lip portion and the outer peripheral portion of the opening of the inner panel can be increased, and the increased contact area increases the pressing force of the tip of the outer peripheral lip portion. , the occurrence of abnormal noise or rattling can be more reliably prevented. In addition, due to this increase in contact area, it is possible to further improve the sealing performance and waterproofness between the outer peripheral portion of the hole seal material and the outer peripheral portion of the opening of the inner panel.
　本発明のドアホールシール構造は、前記発泡本体部の外周に未発泡樹脂で構成される未発泡立壁部が形成され、前記外周リップ部が、前記発泡本体部の厚み方向に延びる起立壁と、前記起立壁から前記インナーパネル側に向かって外側に傾斜して形成されたリップ縁と、前記未発泡立壁部と前記起立壁とを断面視略Ｈ形状となるように連結する未発泡樹脂で構成された架橋部とから構成されていることを特徴とする。
　これによれば、未発泡樹脂で構成される未発泡立壁部と起立壁と架橋部で構成される断面視略Ｈ形状により、外周リップ部或いはホールシール材の外周部の強度を高めることができる。更に、この断面視略Ｈ形状により、外周リップ部の弾力性を高め、外周リップ部の先端部がインナーパネルの開口部の外周部に弾性付勢で押し当てられる弾性力、面圧をより高めることができる。従って、より確実に異音の発生防止、シール性や防水性の確保の効果を得ることができる。 In the door hole seal structure of the present invention, an unfoamed standing wall portion made of unfoamed resin is formed on the outer periphery of the foamed main body portion, and the outer peripheral lip portion extends in the thickness direction of the foamed main body portion; A lip rim inclined outward from the upright wall toward the inner panel, and an unfoamed resin connecting the unfoamed upright wall portion and the upright wall so as to form a substantially H shape in cross section. and a bridging portion.
According to this, the strength of the outer peripheral lip portion or the outer peripheral portion of the hole seal material can be increased by the substantially H-shaped cross section composed of the unfoamed standing wall portion, the standing wall, and the bridging portion, which are made of unfoamed resin. . Furthermore, the substantially H-shaped cross section enhances the elasticity of the outer peripheral lip portion, and further enhances the elastic force and surface pressure with which the tip of the outer peripheral lip portion is elastically pressed against the outer peripheral portion of the opening of the inner panel. be able to. Therefore, it is possible to more reliably obtain the effects of preventing the occurrence of abnormal noise and ensuring sealing performance and waterproofness.
　本発明のドアホールシール構造は、前記架橋部が、前記発泡本体部の厚み方向における前記未発泡立壁部の中央よりも前記インナーパネル側に寄った位置に形成されていることを特徴とする。
　これによれば、架橋部を未発泡立壁部の中央よりもインナーパネル側に寄った位置に形成することにより、外周リップ部の弾力性をより一層高め、外周リップ部の先端部がインナーパネルの開口部の外周部に弾性付勢で押し当てられる弾性力、面圧をより一層高めることができる。 The doorhole seal structure of the present invention is characterized in that the bridging portion is formed at a position closer to the inner panel side than the center of the unfoamed standing wall portion in the thickness direction of the foamed body portion.
According to this, by forming the bridging portion at a position closer to the inner panel side than the center of the non-foamed standing wall portion, the elasticity of the outer peripheral lip portion is further enhanced, and the tip portion of the outer peripheral lip portion is attached to the inner panel. It is possible to further increase the elastic force and the surface pressure that are pressed against the outer peripheral portion of the opening by elastic biasing.
　本発明のドアホールシール構造は、前記発泡本体部を前記インナーパネルの前記開口部側に引き寄せる力が加わるようにして、前記発泡本体部が前記インナーパネルの前記開口部の周縁に掛止固定されていることを特徴とする。
　これによれば、発泡本体部をインナーパネルの周縁に掛止固定することにより、ホールシール材をインナーパネルに簡単に固定することができる。また、発泡本体部をインナーパネルの開口部側に引き寄せる力が加わるようにして掛止固定することにより、外周リップ部の先端部がインナーパネルの開口部の外周部に弾性付勢で押し当てられる弾性力、面圧をより高めることができる。 In the door hole seal structure of the present invention, the foam body is hooked and fixed to the periphery of the opening of the inner panel so that a force is applied to draw the foam body toward the opening of the inner panel. It is characterized by
According to this, the hole seal material can be easily fixed to the inner panel by hooking and fixing the foam main body to the peripheral edge of the inner panel. Further, by hooking and fixing the foamed main body portion so as to apply a force to draw it toward the opening of the inner panel, the tip of the outer peripheral lip portion is elastically biased against the outer peripheral portion of the opening of the inner panel. Elastic force and surface pressure can be further increased.
　本発明のドアホールシール構造によれば、ホールシール材に起因する異音の発生や外力に起因する異音の発生を防止することができると共に、製造効率の向上、製造コストの低減を図ることができる。 According to the door hole seal structure of the present invention, it is possible to prevent the occurrence of noise caused by the hole seal material and the occurrence of noise caused by an external force, improve manufacturing efficiency, and reduce manufacturing costs. can be done.
本発明による実施形態のドアホールシール構造を有する自動車用ドアの正面図。1 is a front view of an automobile door having a door hole seal structure according to an embodiment of the present invention; FIG. 本発明による実施形態のドアホールシール構造の断面図。BRIEF DESCRIPTION OF THE DRAWINGS Sectional drawing of the door hole seal structure of embodiment by this invention. （ａ）は図２のＡ部拡大図、（ｂ）は図２のＢ部拡大図。(a) is an enlarged view of the A portion of FIG. 2, and (b) is an enlarged view of the B portion of FIG. （ａ）は掛止具係合穴と掛止具による掛止固定を説明する斜視説明図、（ｂ）は掛止フックによる掛止固定を説明する斜視説明図。(a) is a perspective explanatory view explaining the latching fixation by a latching engagement hole and a latching implement, (b) is a perspective explanatory view explaining the latching fixation by a latching hook. （ａ）～（ｃ）は実施形態のドアホールシール構造におけるホールシール材の製造工程を説明する工程説明図。4(a) to 4(c) are process explanatory diagrams for explaining the manufacturing process of the hole seal material in the door hole seal structure of the embodiment. FIG.
　〔実施形態のドアホールシール構造〕
　本発明による実施形態のドアホールシール構造は、図１～図３に示すように、自動車用ドア１でアウターパネル２とドアトリム３との間に配置されるインナーパネル４に設けられるものであり、発泡樹脂から構成される発泡本体部６と、未発泡樹脂で構成される外周リップ部７との同一成形材であるホールシール材５から構成される。 [Door hole seal structure of the embodiment]
As shown in FIGS. 1 to 3, the door hole seal structure of the embodiment according to the present invention is provided in an inner panel 4 arranged between an outer panel 2 and a door trim 3 in an automobile door 1. It is composed of a hole seal material 5 which is the same molding material as the foamed body portion 6 made of foamed resin and the outer peripheral lip portion 7 made of unfoamed resin.
　ホールシール材５の発泡本体部６は、発泡コア層６１と、発泡コア層６１の外側に形成されたスキン層６２とで構成される。また、発泡本体部６の外周には、立壁部６３が形成され、立壁部６３の外寄りは未発泡樹脂で構成される未発泡立壁部６３１になっている。立壁部６３は、周溝になっているコアバック痕溝６４の外側に周設されている。 The foam body portion 6 of the hole seal material 5 is composed of a foam core layer 61 and a skin layer 62 formed outside the foam core layer 61 . A standing wall portion 63 is formed on the outer periphery of the foamed main body portion 6, and an unfoamed standing wall portion 631 made of unfoamed resin is formed on the outer side of the standing wall portion 63. As shown in FIG. The standing wall portion 63 is provided around the outer side of the core-back trace groove 64 which is a circumferential groove.
　外周リップ部７は、発泡本体部６の厚み方向に延びる起立壁７１と、起立壁７１からインナーパネル４側に向かって外側に傾斜して形成されたリップ縁７２と、未発泡立壁部６３１と起立壁７１とを断面視略Ｈ形状となるように連結する未発泡樹脂で構成された架橋部７３とから構成されている。図示例のリップ縁７２は、起立壁７１の端部から略弧状に湾曲して傾斜するように形成されており、その先端部７２１はホールシール材５の周縁となる位置に配設され、玉縁状に形成されている。また、図示例の架橋部７３は、発泡本体部６の厚み方向における未発泡立壁部６３１の中央よりもインナーパネル４側に寄った位置に形成されて、未発泡立壁部６３１と起立壁７１とに架設されている。 The outer peripheral lip portion 7 includes an upright wall 71 extending in the thickness direction of the foamed body portion 6 , a lip edge 72 inclined outward from the upright wall 71 toward the inner panel 4 , and an unfoamed upright wall portion 631 . It is composed of a cross-linking portion 73 made of unfoamed resin that connects the standing wall 71 so as to form a substantially H-shaped cross section. The lip edge 72 in the illustrated example is formed so as to curve and incline in a substantially arc shape from the end of the standing wall 71 , and the tip portion 721 is disposed at a position that serves as the peripheral edge of the hole seal material 5 . It is shaped like an edge. In addition, the bridging portion 73 in the illustrated example is formed at a position closer to the inner panel 4 than the center of the unfoamed standing wall portion 631 in the thickness direction of the foamed body portion 6 , so that the unfoamed standing wall portion 631 and the standing wall 71 are formed. is erected on
　本実施形態における発泡本体部６のインナーパネル４側の面には、略Ｕ字形状に突出する部分で構成される掛止具係合穴６５と、外側に爪を向けて形成されている掛止フック６６がそれぞれ所定の複数個所に設けられ、発泡本体部６のスキン層６２の一部として一体形成されている。掛止具係合穴６５には別部材の掛止具８が挿入されて係着される。 On the inner panel 4 side surface of the foamed main body 6 in this embodiment, a hook engaging hole 65 configured by a portion protruding in a substantially U shape and a hook formed with a hook facing outward are provided. Stop hooks 66 are provided at a plurality of predetermined locations, respectively, and are integrally formed as part of the skin layer 62 of the foam body portion 6 . A separate fastener 8 is inserted into and engaged with the fastener engaging hole 65 .
　そして、ホールシール材５は、インナーパネル４の開口部４１を閉塞するように配置され、発泡本体部６がインナーパネル４に機械的に固定される。本実施形態では、掛止フック６６がインナーパネル４の開口部４１の周縁４２の内側に引っ掛けられ、掛止具係合穴６５に係着される掛止具８の先端フック８１がインナーパネル４の開口部４１の周縁４２の内側に引っ掛けられて掛止固定されている（図２～図４参照）。即ち、発泡本体部６をインナーパネル４の開口部４１側に引き寄せる力が加わるようにして、発泡本体部６がインナーパネル４の開口部４１の周縁４２に掛止固定されている。 The hole seal material 5 is arranged so as to block the opening 41 of the inner panel 4 , and the foam main body 6 is mechanically fixed to the inner panel 4 . In this embodiment, the hanging hook 66 is hooked inside the peripheral edge 42 of the opening 41 of the inner panel 4 , and the tip hook 81 of the fastener 8 engaged with the fastener engaging hole 65 is attached to the inner panel 4 . 2 to 4). That is, the foam main body 6 is hooked and fixed to the peripheral edge 42 of the opening 41 of the inner panel 4 so that a force is applied to draw the foam main body 6 toward the opening 41 of the inner panel 4 .
　インナーパネル４に掛止固定で機械的に固定されたホールシール材５の外周リップ部７の先端部７２１は、インナーパネル４の開口部４１の外周部４３に弾性付勢で押し当てられ、当接状態が維持される。図示例では、略垂直方向に延びる周縁４２から外側に向かって車室側に略弧状に湾曲するように傾斜して形成されたインナーパネル４の開口部４１の外周部４３に、玉縁状の先端部７２１が弾性付勢で押し当てられて当接状態が維持されている。 The tip portion 721 of the outer peripheral lip portion 7 of the hole seal material 5 mechanically fixed to the inner panel 4 by hook fixing is elastically pressed against the outer peripheral portion 43 of the opening 41 of the inner panel 4, and is brought into contact. contact is maintained. In the illustrated example, a bead-shaped outer peripheral portion 43 of an opening 41 of the inner panel 4 is formed so as to be curved in a substantially arc-like shape outwardly toward the passenger compartment from a peripheral edge 42 extending in a substantially vertical direction. The tip portion 721 is elastically biased to maintain the contact state.
　本実施形態ドアホールシール構造で用いられるホールシール材５を製造する際には、例えば図５（ａ）に示すように、外周リップ部７と、立壁部６３と、立壁部６３で囲まれ且つ立壁部６３の高さより厚みが薄い基板に対応する形状の空洞で構成されるキャビティ９０を、固定金型９１、９２と可動金型９３とで区画して形成する。発泡性溶融樹脂の成形時には可動金型９３は図示の太線二点鎖線矢印の方向に後退するようになっており、立壁部６３の形状の空洞における可動金型９３の後退する側の面には固定金型９２が配置され、立壁部６３の形状の空洞の内側面には可動金型９３の側面が配置される。 When manufacturing the hole seal material 5 used in the door hole seal structure of the present embodiment, for example, as shown in FIG. Fixed molds 91 and 92 and a movable mold 93 partition and form a cavity 90 having a shape corresponding to a substrate whose thickness is thinner than the height of the standing wall portion 63 . At the time of molding the foamable molten resin, the movable mold 93 is retracted in the direction of the thick two-dot chain line arrow in the drawing. A fixed mold 92 is arranged, and a side surface of a movable mold 93 is arranged on the inner side surface of the cavity having the shape of the standing wall portion 63 .
　次いで、図５（ｂ）に示すように、図示省略する発泡性溶融樹脂の注入路からキャビティ９０に発泡性溶融樹脂ＭＲを注入し、充填する。この発泡性溶融樹脂には自動車用ドア１のホールシール材５に適用可能な適宜の材料を用いることが可能であり、例えばＰＰ（ポリプロピレン）やＰＥ（ポリエチレン）等のオレフィン系樹脂、ＡＢＳ（アクリロニトリル・ブタジエン・スチレン共重合体）やＰＣ（ポリカーボネート）とＡＢＳとの混合樹脂など非晶質樹脂、オレフィン系等の熱可塑エラストマーや、又はＥＰＤＭ（エチレンプロピエンジエンゴム）、ＳＢＲ（スチレンブタジエンゴム）、ＣＲ（クロロプレンゴム）、ＮＢＲ（ニトリルゴム）等の合成ゴム等を用いると良好である。尚、本実施形態では、掛止具係合穴６５を構成する略Ｕ字形部分の形状に対応する隙間９１１と、掛止フック６６の形状に対応する隙間９１２が固定金型９１に設けられており、隙間９１１、９１２にも発泡性溶融樹脂ＭＲが充填される。掛止具係合穴６５に相当する部位には、固定金型９１内で進退自在或いは固定金型９１に外付けで着脱自在な金属棒材が設置され、発泡性溶融樹脂ＭＲの注入、充填時には金属棒材で塞がれて、掛止具係合穴６５に対応する形状が形成されるようになっている。 Next, as shown in FIG. 5(b), the foamable molten resin MR is injected into the cavity 90 from an injection path for the foamable molten resin (not shown) to fill the cavity. Any appropriate material applicable to the hole sealing material 5 of the automobile door 1 can be used as the foamable molten resin.・Amorphous resins such as butadiene/styrene copolymers, mixed resins of PC (polycarbonate) and ABS, thermoplastic elastomers such as olefins, EPDM (ethylene propylene diene rubber), SBR (styrene butadiene rubber) , CR (chloroprene rubber), NBR (nitrile rubber) and other synthetic rubbers are preferably used. In this embodiment, the fixed mold 91 is provided with a gap 911 corresponding to the shape of the substantially U-shaped portion forming the hook engaging hole 65 and a gap 912 corresponding to the shape of the hook 66. The gaps 911 and 912 are also filled with the foamable molten resin MR. At a portion corresponding to the hook engaging hole 65, a metal rod is installed which can move forward and backward within the fixed mold 91 or can be externally attached to and detached from the fixed mold 91, and the foamable molten resin MR is injected and filled. It is sometimes closed with a metal bar so that a shape corresponding to the fastener engaging hole 65 is formed.
　その後、図５（ｃ）に示すように、図示の太線矢印の方向に可動金型９３をコアバックして発泡性溶融樹脂ＭＲを発泡させ、発泡本体部６と外周リップ部７から構成されるホールシール材５が形成される。この際、本実施形態では、形成されたホールシール材５に、掛止具係合穴６５を構成する略Ｕ字形部分と、掛止フック６６も併せて形成される。 Thereafter, as shown in FIG. 5(c), the movable mold 93 is core-backed in the direction of the thick arrow shown in the figure to foam the foamable molten resin MR, thereby forming the foamed main body portion 6 and the peripheral lip portion 7. A hole seal material 5 is formed. At this time, in the present embodiment, the formed hole seal material 5 is also formed with a substantially U-shaped portion constituting the fastener engaging hole 65 and the retaining hook 66 .
　本実施形態のドアホールシール構造によれば、インナーパネル４の開口部４１の外周部４３にはホールシール材５の外周リップ部７の先端部７２１が弾性付勢で押し当てられ、外周部４３と先端部７２１との間に隙間を生ずることなく常に面圧がかかる状態となり、外部からの振動の加振力を超える圧力で外周リップ部７の先端部７２１をインナーパネル４の外周部４３に押し付けて振動を抑え込み、外力に起因する異音（ビビリ音）或いはがたつきの発生を防止することができる。更に、インナーパネル４の開口部４１の周辺において接着された合成樹脂フィルムが振動して異音が発生するようなことが無く、ホールシール材５に起因する異音の発生を防止することもできる。そして、高音域とロードノイズ等の低音域の双方に対して防音効果、遮音効果を発揮することができる。 According to the door hole seal structure of this embodiment, the distal end portion 721 of the outer peripheral lip portion 7 of the hole seal material 5 is elastically pressed against the outer peripheral portion 43 of the opening 41 of the inner panel 4, and the outer peripheral portion 43 and the front end portion 721 of the inner panel 4, the front end portion 721 of the outer peripheral lip portion 7 is pressed against the outer peripheral portion 43 of the inner panel 4 by a pressure exceeding the excitation force of the vibration from the outside. It is possible to suppress the vibration by pressing and prevent the occurrence of abnormal noise (chattering noise) or rattling due to external force. Furthermore, the synthetic resin film adhered around the opening 41 of the inner panel 4 does not vibrate and generate abnormal noise, and the generation of abnormal noise caused by the hole seal material 5 can be prevented. . In addition, it is possible to exert a soundproof effect and a sound insulation effect on both the high frequency range and the low frequency range such as road noise.
　また、本実施形態のドアホールシール構造では、ブチルシール剤を容易に変形する合成樹脂フィルムに塗布してインナーパネルに接着するような作業が不要であることから、製造効率の向上、製造コストの低減を図ることができる。また、外周リップ部７の先端部７２１をインナーパネル４の開口部４１の外周部４３に弾性付勢で押し当てて当接状態を維持することにより、ホールシール材５の外周部とインナーパネル４の開口部４１の外周部４３との接着をせずとも、ホールシール材５の外周部とインナーパネル４の開口部４１の外周部４３とのシール性、防水性を確保することができる。 In addition, the door hole seal structure of this embodiment does not require the work of applying a butyl sealant to an easily deformable synthetic resin film and adhering it to the inner panel, which improves manufacturing efficiency and reduces manufacturing costs. reduction can be achieved. In addition, the tip portion 721 of the outer peripheral lip portion 7 is elastically biased against the outer peripheral portion 43 of the opening 41 of the inner panel 4 to maintain the abutting state. Sealability and waterproofness between the outer peripheral portion of the hole seal material 5 and the outer peripheral portion 43 of the opening 41 of the inner panel 4 can be ensured without bonding to the outer peripheral portion 43 of the opening 41 of the inner panel 4 .
　また、外周リップ部７の先端部７２１を玉縁状とすることにより、外周リップ部７の先端部７２１の強度を高め、破損を防止することができる。更に、外周リップ部７の先端部７２１とインナーパネル４の開口部４１の外周部４３との当接による接触面積を増加させることができ、この接触面積の増加により、外周リップ部７の先端部７２１の押付力を増加させ、異音或いはがたつきの発生をより確実に防止することができる。また、この接触面積の増加により、ホールシール材５の外周部とインナーパネル４の開口部４１の外周部４３とのシール性、防水性をより一層高めることができる。 Further, by forming the tip portion 721 of the outer peripheral lip portion 7 into a bead shape, the strength of the tip portion 721 of the outer peripheral lip portion 7 can be increased and breakage can be prevented. Furthermore, the contact area due to contact between the tip portion 721 of the outer peripheral lip portion 7 and the outer peripheral portion 43 of the opening 41 of the inner panel 4 can be increased. By increasing the pressing force of 721, it is possible to more reliably prevent the occurrence of abnormal noise or rattling. Moreover, due to this increase in contact area, the sealability and waterproofness between the outer peripheral portion of the hole seal material 5 and the outer peripheral portion 43 of the opening 41 of the inner panel 4 can be further enhanced.
　また、未発泡樹脂で構成される未発泡立壁部６３１と起立壁７１と架橋部７３で構成される断面視略Ｈ形状により、外周リップ部７或いはホールシール材５の外周部の強度を高めることができる。更に、この断面視略Ｈ形状により、外周リップ部７の弾力性を高め、外周リップ部７の先端部７２１がインナーパネル４の開口部４１の外周部４３に弾性付勢で押し当てられる弾性力、面圧をより高めることができる。従って、より確実に異音の発生防止、シール性や防水性の確保の効果を得ることができる。 In addition, the strength of the outer peripheral portion of the outer peripheral lip portion 7 or the hole seal member 5 is increased by the substantially H-shaped cross section composed of the unfoamed standing wall portion 631, the standing wall 71, and the bridging portion 73, which are made of unfoamed resin. can be done. Furthermore, the substantially H shape in cross section enhances the elasticity of the outer peripheral lip portion 7, and the elastic force of the tip portion 721 of the outer peripheral lip portion 7 being elastically pressed against the outer peripheral portion 43 of the opening 41 of the inner panel 4. , the surface pressure can be further increased. Therefore, it is possible to more reliably obtain the effects of preventing the occurrence of abnormal noise and ensuring sealing performance and waterproofness.
　また、架橋部７３を未発泡立壁部６３１の中央よりもインナーパネル４側に寄った位置に形成することにより、外周リップ部７の弾力性をより一層高め、外周リップ部７の先端部７２１がインナーパネル４の開口部４１の外周部４３に弾性付勢で押し当てられる弾性力、面圧をより一層高めることができる。 In addition, by forming the bridging portion 73 at a position closer to the inner panel 4 than the center of the unfoamed standing wall portion 631, the elasticity of the outer peripheral lip portion 7 is further enhanced, and the distal end portion 721 of the outer peripheral lip portion 7 is It is possible to further increase the elastic force and the surface pressure of the outer peripheral portion 43 of the opening 41 of the inner panel 4 that is elastically biased.
　また、発泡本体部６をインナーパネル４の周縁４２に掛止固定することにより、ホールシール材５をインナーパネル４に簡単に固定することができる。また、発泡本体部６をインナーパネル４の開口部４１側に引き寄せる力が加わるようにして掛止固定することにより、外周リップ部７の先端部７２１がインナーパネル４の開口部４１の外周部４３に弾性付勢で押し当てられる弾性力、面圧をより高めることができる。 Further, by hooking and fixing the foamed main body portion 6 to the peripheral edge 42 of the inner panel 4 , the hole seal material 5 can be easily fixed to the inner panel 4 . Further, by hooking and fixing the foam main body 6 so as to apply a force to pull the foam main body 6 toward the opening 41 of the inner panel 4 , the tip 721 of the outer peripheral lip portion 7 is attached to the outer peripheral portion 43 of the opening 41 of the inner panel 4 . It is possible to further increase the elastic force and the surface pressure that are pressed by elastic biasing.
　〔本明細書開示発明の包含範囲〕
　本明細書開示の発明は、発明として列記した各発明、実施形態の他に、適用可能な範囲で、これらの部分的な内容を本明細書開示の他の内容に変更して特定したもの、或いはこれらの内容に本明細書開示の他の内容を付加して特定したもの、或いはこれらの部分的な内容を部分的な作用効果が得られる限度で削除して上位概念化して特定したものを包含する。そして、本明細書開示の発明には下記変形例や追記した内容も含まれる。 [Scope of invention disclosed in this specification]
In addition to each invention and embodiment listed as an invention, the invention disclosed in this specification is specified by changing these partial contents to other contents disclosed in this specification within the applicable range, Alternatively, what is specified by adding other contents disclosed in this specification to these contents, or what is specified by deleting these partial contents to the extent that partial effects can be obtained and making them a broader concept contain. The invention disclosed in this specification also includes the following modifications and additional content.
　例えば上記実施形態のドアホールシール構造では、発泡本体部６をインナーパネル４に掛止固定する構成としたが、本発明のドアホールシール構造には、掛止固定以外にも、発泡本体部をインナーパネルに機械的に固定する適宜の構成が含まれる。ここで「機械的に固定」とは、例えば掛止固定、ボルト締め、ねじ止め、カシメ固定、圧入固定等の力学的作用による固定を意味し、接着のような化学的固定は含まれない。 For example, in the door hole seal structure of the above-described embodiment, the foam body portion 6 is fixed to the inner panel 4 by hanging. Appropriate arrangements for mechanical fixation to the inner panel are included. Here, "mechanically fixed" means fixing by mechanical action such as hook fixing, bolting, screwing, caulking fixing, and press-fitting fixing, and does not include chemical fixing such as adhesion.
　また、上記実施形態における外周リップ部７の先端部７２１の形状は玉縁状に形成したが、外周リップ部の先端部の形状を玉縁状以外の形状にしたものも本発明に含まれる。また、本発明における外周リップ部の形状も本発明の趣旨の範囲内で適宜であり、上記実施形態の断面視略Ｈ形状に限定されない。 In addition, although the shape of the tip portion 721 of the outer peripheral lip portion 7 in the above embodiment is formed in a bead shape, the present invention also includes a configuration in which the shape of the tip portion of the outer peripheral lip portion is in a shape other than a bead shape. Further, the shape of the outer peripheral lip portion in the present invention is also appropriate within the scope of the present invention, and is not limited to the substantially H shape in cross-sectional view of the above embodiment.
　本発明は、自動車用ドアのインナーパネルの開口部を閉塞する際に利用することができる。 The present invention can be used when closing the opening of the inner panel of an automobile door.
１…自動車用ドア　２…アウターパネル　３…ドアトリム　４…インナーパネル　４１…開口部　４２…周縁　４３…外周部　５…ホールシール材　６…発泡本体部　６１…発泡コア層　６２…スキン層　６３…立壁部　６３１…未発泡立壁部　６４…コアバック痕溝　６５…掛止具係合穴　６６…掛止フック　７…外周リップ部　７１…起立壁　７２…リップ縁　７２１…先端部　７３…架橋部　８…掛止具　８１…先端フック　９０…キャビティ　９１…固定金型　９１１、９１２…隙間　９２…固定金型　９３…可動金型　ＭＲ…発泡性溶融樹脂 1...Automobile door 2...Outer panel 3...Door trim 4...Inner panel 41...Opening part 42...Peripheral edge 43...Peripheral part 5...Hole sealing material 6...Foam body part 61...Foam core layer 62...Skin layer 63...Standing wall part 631...Unfoamed standing wall portion 64...Core back trace groove 65...Hanging tool engagement hole 66...Hanging hook 7...Outer peripheral lip portion 71...Upright wall 72...Lip edge 721...Tip 73...Bridging portion 8...Hatching Tool 81...tip hook 90...cavity 91...fixed mold 911, 912...gap 92...fixed mold 93...movable mold MR...foamable molten resin

Claims (5)

  1. 　発泡樹脂から構成される発泡本体部と、未発泡樹脂で構成される外周リップ部との同一成形材であるホールシール材を有し、
    　前記ホールシール材が自動車用ドアのインナーパネルの開口部を閉塞するように配置され、
    　前記発泡本体部が前記インナーパネルに機械的に固定され、
    　前記外周リップ部の先端部が前記ホールシール材の周縁となる位置に配設され、
    　前記外周リップ部の前記先端部が前記インナーパネルの前記開口部の外周部に弾性付勢で押し当てられて当接状態が維持されていることを特徴とするドアホールシール構造。     Having a hole seal material which is the same molding material as the foamed main body portion made of foamed resin and the outer peripheral lip portion made of unfoamed resin,
    The hole seal material is arranged to block the opening of the inner panel of the automobile door,
    the foam body is mechanically secured to the inner panel;
    a tip portion of the outer peripheral lip portion is arranged at a position corresponding to a peripheral edge of the hole seal material,
    A door hole seal structure, wherein the tip portion of the outer peripheral lip portion is elastically biased against the outer peripheral portion of the opening of the inner panel to maintain a contact state.
  2. 　前記外周リップ部の先端部が玉縁状に形成されていることを特徴とする請求項１記載のドアホールシール構造。 The door hole seal structure according to claim 1, characterized in that the tip portion of the outer peripheral lip portion is formed in a bead shape.
  3. 　前記発泡本体部の外周に未発泡樹脂で構成される未発泡立壁部が形成され、
    　前記外周リップ部が、前記発泡本体部の厚み方向に延びる起立壁と、前記起立壁から前記インナーパネル側に向かって外側に傾斜して形成されたリップ縁と、前記未発泡立壁部と前記起立壁とを断面視略Ｈ形状となるように連結する未発泡樹脂で構成された架橋部とから構成されていることを特徴とする請求項１又は２記載のドアホールシール構造。     An unfoamed standing wall portion made of unfoamed resin is formed on the outer periphery of the foamed main body,
    The outer peripheral lip portion includes an upright wall extending in the thickness direction of the foamed main body portion, a lip edge formed so as to be inclined outward from the upright wall toward the inner panel, the non-foamed upright wall portion, and the upright wall portion. 3. The door hole seal structure according to claim 1, further comprising a cross-linking portion made of unfoamed resin connecting the wall with the wall so as to form a substantially H-shaped cross section.
  4. 　前記架橋部が、前記発泡本体部の厚み方向における前記未発泡立壁部の中央よりも前記インナーパネル側に寄った位置に形成されていることを特徴とする請求項１～３の何れかに記載のドアホールシール構造。 4. The bridge according to any one of claims 1 to 3, wherein the bridging portion is formed at a position closer to the inner panel side than the center of the non-foamed standing wall portion in the thickness direction of the foamed body portion. door hole seal structure.
  5. 　前記発泡本体部を前記インナーパネルの前記開口部側に引き寄せる力が加わるようにして、前記発泡本体部が前記インナーパネルの前記開口部の周縁に掛止固定されていることを特徴とする請求項１～４の何れかに記載のドアホールシール構造。 3. The foam body is hooked and fixed to the periphery of the opening of the inner panel so that a force is applied to pull the foam body toward the opening of the inner panel. 5. The door hole seal structure according to any one of 1 to 4.
PCT/JP2022/011755 2021-07-14 2022-03-15 Door hole seal structure WO2023286356A1 (en)

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JP2005014714A (en) * 2003-06-25 2005-01-20 Gp Daikyo Corp Door structure of automobile
JP2013256183A (en) * 2012-06-12 2013-12-26 Ts Tech Co Ltd Panel hole seal structure
JP2013256184A (en) * 2012-06-12 2013-12-26 Ts Tech Co Ltd Door hole seal structure
JP2014144727A (en) * 2013-01-30 2014-08-14 Jsp Corp Service hole cover
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