WO2023286356A1 - ドアホールシール構造 - Google Patents

ドアホールシール構造 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
Authority
WO
WIPO (PCT)
Prior art keywords
inner panel
outer peripheral
hole seal
opening
peripheral lip
Prior art date
Application number
PCT/JP2022/011755
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
高山克海
中島孝敏
神宮直樹
Original Assignee
三恵技研工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三恵技研工業株式会社 filed Critical 三恵技研工業株式会社
Publication of WO2023286356A1 publication Critical patent/WO2023286356A1/ja

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Classifications

    • 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.

Landscapes

  • 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)
PCT/JP2022/011755 2021-07-14 2022-03-15 ドアホールシール構造 WO2023286356A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021-116773 2021-07-14
JP2021116773A JP7693260B2 (ja) 2021-07-14 2021-07-14 ドアホールシール構造

Publications (1)

Publication Number Publication Date
WO2023286356A1 true WO2023286356A1 (ja) 2023-01-19

Family

ID=84919938

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2022/011755 WO2023286356A1 (ja) 2021-07-14 2022-03-15 ドアホールシール構造

Country Status (2)

Country Link
JP (1) JP7693260B2 (enrdf_load_stackoverflow)
WO (1) WO2023286356A1 (enrdf_load_stackoverflow)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005014714A (ja) * 2003-06-25 2005-01-20 Gp Daikyo Corp 自動車のドア構造
JP2013256183A (ja) * 2012-06-12 2013-12-26 Ts Tech Co Ltd パネルホールシール構造
JP2013256184A (ja) * 2012-06-12 2013-12-26 Ts Tech Co Ltd ドアホールシール構造
JP2014144727A (ja) * 2013-01-30 2014-08-14 Jsp Corp サービスホールカバー
JP2017081495A (ja) * 2015-10-30 2017-05-18 西川ゴム工業株式会社 自動車用シート部材
JP2017202727A (ja) * 2016-05-10 2017-11-16 株式会社イノアックコーポレーション サービスホールカバー
JP2017210151A (ja) * 2016-05-26 2017-11-30 株式会社イノアックコーポレーション サービスホールカバーおよびその製造方法
JP2018079900A (ja) * 2016-11-18 2018-05-24 西川ゴム工業株式会社 ドアホールシール及びドアホールシール用合成樹脂シート
JP2019085045A (ja) * 2017-11-09 2019-06-06 西川ゴム工業株式会社 ドアホールシールの取付構造
JP2021195021A (ja) * 2020-06-15 2021-12-27 西川ゴム工業株式会社 ドアホールキャップの取付構造、ドアホールキャップおよびシール部材
JP2022055872A (ja) * 2020-09-29 2022-04-08 本田技研工業株式会社 ドア構造及び車両用ドアの組付方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007290668A (ja) 2006-04-27 2007-11-08 Three M Innovative Properties Co 車両用ドアホールシール及びその製造方法並びにその使用方法
JP6264435B2 (ja) 2015-11-30 2018-01-24 日立化成株式会社 金型及び発泡成形体の製造方法
JP6872924B2 (ja) 2017-02-14 2021-05-19 西川ゴム工業株式会社 防音材
JP7137975B2 (ja) 2018-07-03 2022-09-15 三恵技研工業株式会社 自動車用部材及びその製造方法

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005014714A (ja) * 2003-06-25 2005-01-20 Gp Daikyo Corp 自動車のドア構造
JP2013256183A (ja) * 2012-06-12 2013-12-26 Ts Tech Co Ltd パネルホールシール構造
JP2013256184A (ja) * 2012-06-12 2013-12-26 Ts Tech Co Ltd ドアホールシール構造
JP2014144727A (ja) * 2013-01-30 2014-08-14 Jsp Corp サービスホールカバー
JP2017081495A (ja) * 2015-10-30 2017-05-18 西川ゴム工業株式会社 自動車用シート部材
JP2017202727A (ja) * 2016-05-10 2017-11-16 株式会社イノアックコーポレーション サービスホールカバー
JP2017210151A (ja) * 2016-05-26 2017-11-30 株式会社イノアックコーポレーション サービスホールカバーおよびその製造方法
JP2018079900A (ja) * 2016-11-18 2018-05-24 西川ゴム工業株式会社 ドアホールシール及びドアホールシール用合成樹脂シート
JP2019085045A (ja) * 2017-11-09 2019-06-06 西川ゴム工業株式会社 ドアホールシールの取付構造
JP2021195021A (ja) * 2020-06-15 2021-12-27 西川ゴム工業株式会社 ドアホールキャップの取付構造、ドアホールキャップおよびシール部材
JP2022055872A (ja) * 2020-09-29 2022-04-08 本田技研工業株式会社 ドア構造及び車両用ドアの組付方法

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JP2023012967A (ja) 2023-01-26
JP7693260B2 (ja) 2025-06-17

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