JPH11226971A - Hollow room intercepting structure of hollow structure - Google Patents
Hollow room intercepting structure of hollow structureInfo
- Publication number
- JPH11226971A JPH11226971A JP10029898A JP2989898A JPH11226971A JP H11226971 A JPH11226971 A JP H11226971A JP 10029898 A JP10029898 A JP 10029898A JP 2989898 A JP2989898 A JP 2989898A JP H11226971 A JPH11226971 A JP H11226971A
- Authority
- JP
- Japan
- Prior art keywords
- base material
- hollow structure
- hollow
- foamable base
- holder body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Body Structure For Vehicles (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、中空構造物の中
空室遮断構造に関する。例えば、複数枚のパネルによっ
て中空の箱形閉じ断面に構成された車両ボディの中空パ
ネル（ピラー、ローカパネル、ルーフサイドパネル等）
のような中空構造物において、その中空室に対し、ホル
ダ体によって装着された発泡性基材が外部加熱によって
発泡し発泡体となることで中空室を遮断し、これによっ
て、中空構造物の制振、防音等を高めるようにした中空
構造物の中空室遮断構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hollow structure blocking structure for a hollow structure. For example, a hollow panel (pillar, local panel, roof side panel, etc.) of a vehicle body composed of a hollow box-shaped closed cross section by a plurality of panels
In such a hollow structure, the foamable base material attached by the holder body is foamed by external heating to the hollow chamber to form a foam, thereby shutting off the hollow chamber, thereby controlling the hollow structure. The present invention relates to a hollow chamber cutoff structure of a hollow structure having enhanced vibration and soundproofing.
【０００２】[0002]
【従来の技術】この種の中空構造物の中空室遮断構造に
おいて、例えば、特開平２−２７６８３６号公報に開示
されている。これにおいては、中空構造物の中空室に突
入されたボルトのねじ部に発泡性基材を差込んで支持し
ている。そして、外部からの加熱によって発泡性基材が
発泡する際、その発泡性基材の発泡方向が制限されるこ
となく、同発泡性基材は、中空室の長手方向にも必要以
上に発泡して発泡体となる。このため、発泡性基材の発
泡が完了した時点において、その発泡体によって中空室
の遮断を確実化するためには、多量の発泡性基材が必要
となり、コスト高となった。2. Description of the Related Art Japanese Patent Laid-Open Publication No. 2-27636 discloses a hollow chamber shut-off structure of this kind. In this case, a foamable base material is inserted into and supported by a screw portion of a bolt protruding into a hollow chamber of a hollow structure. When the foamable base material is foamed by heating from the outside, the foamable base material is unnecessarily foamed in the longitudinal direction of the hollow chamber without being restricted in the foaming direction of the foamable base material. Into a foam. For this reason, when the foaming of the foamable base material is completed, a large amount of the foamable base material is required in order to ensure the blockage of the hollow chamber by the foam, resulting in an increase in cost.
【０００３】中空構造物の中空室に対し、略環状に形成
された少量の発泡性基材によって中空構造物の中空室を
効率よく遮断するために、例えば、特開平８−２５８０
４７号公報に開示された構造のものが知られている。こ
れにおいては、図７に示すように、中空構造物の中空室
に対し、略環状に形成された発泡性基材１１０がホルダ
体１３０によって装着されている。前記ホルダ体１３０
は、プレート本体１３２、周壁部１３３、第１制限フラ
ンジ１３４、第２制限フランジ１３５及び固定フランジ
１３６を一体に備えている。すなわち、プレート本体１
３２の周囲には同プレート本体１３２と同一面をなして
張出された第１制限フランジ１３４と、略環状の発泡性
基材１１０の内周面に沿いかつプレート本体１３２に対
し直角状に折曲された周壁部１３３とが交互に形成され
ている。[0003] In order to efficiently block the hollow chamber of the hollow structure with a small amount of a foamable base material formed in a substantially annular shape, the hollow chamber of the hollow structure is disclosed, for example, in Japanese Patent Application Laid-Open No. Hei 8-2580.
A structure disclosed in Japanese Patent Publication No. 47-47 is known. In this case, as shown in FIG. 7, a substantially annular foamable base material 110 is attached to a hollow chamber of a hollow structure by a holder body 130. The holder body 130
Has a plate main body 132, a peripheral wall portion 133, a first restriction flange 134, a second restriction flange 135, and a fixed flange 136. That is, the plate body 1
Around the periphery of the plate body 132, a first restricting flange 134 extending on the same plane as the plate body 132, is bent along the inner peripheral surface of the substantially annular foamable base material 110 and at right angles to the plate body 132. The curved peripheral wall portions 133 are alternately formed.
【０００４】また、前記周壁部１３３の先端には、第１
制限フランジ１３４と平行して張出す第２制限フランジ
１３５が折曲げ形成されている。前記プレート本体１３
２の上部に張出された第１制限フランジ１３４の張出端
には、中空構造物の内周壁面にスポット溶接によって固
定される固定片１３６が直角状に折曲形成されている。
一方、発泡性基材１１０は中空構造物の内周壁面に沿っ
て略環状に形成された発泡性基材１１０は、ホルダ体１
３０に対する組付け性を考慮して、その一部が切り離さ
れて開口部１１０ａが設けられている。そして、発泡性
基材１１０は、その開口部１１０ａを拡開しながらプレ
ート本体１３２の周壁部１３３の外周部に組み付けられ
るようになっている。A first end of the peripheral wall portion 133 has
A second limiting flange 135 extending parallel to the limiting flange 134 is formed by bending. The plate body 13
A fixing piece 136 fixed to the inner peripheral wall surface of the hollow structure by spot welding is bent at a right angle at the protruding end of the first restriction flange 134 protruding at the upper part of the second member 2.
On the other hand, the foamable base material 110, which is formed in a substantially annular shape along the inner peripheral wall surface of the hollow structure, includes the holder body 1
In consideration of the assemblability with respect to 30, an opening 110a is provided with a part thereof cut off. The foamable base material 110 is attached to the outer peripheral portion of the peripheral wall portion 133 of the plate main body 132 while expanding the opening 110a.
【０００５】[0005]
【発明が解決しようとする課題】ところで、図７に示す
従来の中空構造物の中空室遮断構造において、発泡性基
材１１０は、ホルダ体１３０に対する組付け性を考慮し
て、その一部が切り離されて開口されている。このた
め、発泡性基材１１０が発泡して発泡体となったときに
は、発泡性基材１１０の切り離された開口部１１０ａに
対応する部分において、発泡体に隙間が生じ、その隙間
によって中空構造物の中空室の遮断不良が発生するとい
う問題点があった。このようなことから、特開平８−２
８２３９６号公報に開示された構造の中空構造物の中空
室遮断構造が知られている。これにおいては、図８に示
すように、発泡性基材１１０の切り離された開口部にお
いて、その一方の開口面には係止突起１１６が突設さ
れ、他方の開口面には係止突起１１６に係脱可能に係合
して前記開口部を閉じる係合凹部１１７が形成されてい
る。しかしながら、図８に示す中空構造物の中空室遮断
構造にあっても、発泡性基材１１０が発泡する際、係止
突起１１６と係合凹部１１７との係合が不測に外れ場合
がある。そして、発泡性基材１１０の開口部に対応する
部分において、発泡体に隙間が生じ、その隙間によって
中空構造物の中空室の遮断不良が発生する場合がある。By the way, in the conventional hollow structure blocking structure of the hollow structure shown in FIG. 7, the foamable base material 110 is partially formed in consideration of the assembling property to the holder body 130. It is separated and opened. For this reason, when the foamable base material 110 foams into a foam, a gap is formed in the foam at a portion corresponding to the separated opening 110a of the foamable base material 110, and the gap causes the hollow structure to have a hollow structure. However, there is a problem in that a poor insulation of the hollow chamber occurs. For this reason, Japanese Patent Application Laid-Open No. 8-2
There is known a hollow chamber blocking structure for a hollow structure having a structure disclosed in Japanese Patent Application Laid-Open No. 82396. In this case, as shown in FIG. 8, in the cut-off opening of the foamable base material 110, a locking projection 116 is provided on one opening surface, and the locking projection 116 is formed on the other opening surface. An engagement recess 117 is formed so as to removably engage with and close the opening. However, even in the hollow structure blocking structure of the hollow structure shown in FIG. 8, when the foamable base material 110 foams, the engagement between the locking projection 116 and the engaging recess 117 may be unexpectedly disengaged. Then, a gap is formed in the foam at a portion corresponding to the opening of the foamable base material 110, and the gap may cause a failure in blocking the hollow chamber of the hollow structure.
【０００６】この発明の目的は、前記問題点に鑑み、無
端環状に形成された少量の発泡性基材によって中空構造
物の中空室を効率よく遮断することができるとともに、
発泡性基材の切り離された開口部が原因となる遮断不良
を解消することができる中空構造物の中空室遮断構造を
提供することである。SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to efficiently block a hollow chamber of a hollow structure with a small amount of an endlessly formed foamable base material.
An object of the present invention is to provide a hollow-chamber shut-off structure of a hollow structure capable of eliminating a poor shut-off caused by a cut-off opening of a foamable base material.
【０００７】[0007]
【課題を解決するための手段】前記目的を達成するため
に、請求項１の発明に係る中空構造物の中空室遮断構造
は、中空構造物の中空室に対し、ホルダ体によって装着
された発泡性基材が外部加熱によって発泡し発泡体とな
ることで前記中空室を遮断する中空構造物の中空室遮断
構造であって、前記発泡性基材は、前記中空室の内周壁
面に沿って無端環状に形成され、前記ホルダ体は、取付
手段によって前記中空構造物の内壁面に取り付けられる
とともに、前記発泡性基材の両側をそれぞれ支持して同
発泡性基材の発泡方向を規制するための発泡制限用の第
１支持板と第２支持板によって分割構成され、前記第１
・第２の両支持板の間には、前記発泡性基材を間に挟ん
でこれら第１・第２の両支持板を結合する結合手段が設
けられ、さらに、前記第１・第２の両支持板のうち、一
方の支持板には、前記発泡性基材の内孔に嵌挿される周
壁部を有する凸部が突設されている。According to a first aspect of the present invention, there is provided a hollow structure shut-off structure for a hollow structure, wherein the hollow structure of the hollow structure is attached to a hollow chamber of the hollow structure by a holder body. The hollow base is a hollow structure of a hollow structure that blocks the hollow by being foamed by external heating to form a foam by external heating, wherein the expandable base is along an inner peripheral wall surface of the hollow. The holder body is formed in an endless annular shape, and the holder body is attached to the inner wall surface of the hollow structure by attaching means, and also supports both sides of the foamable base material to regulate the foaming direction of the foamable base material. Is divided by a first support plate and a second support plate for restricting foaming,
A connecting means for connecting the first and second support plates with the foamable base material interposed therebetween is provided between the second support plates, and the first and second support plates are further provided. One of the plates has a projecting portion having a peripheral wall that is inserted into the inner hole of the foamable base material.
【０００８】したがって、ホルダ体の発泡制限用の第１
支持板と第２支持板とが無端環状をなす発泡性基材を間
に挟んで結合手段によって結合されることで、無端環状
をなす発泡性基材がホルダ体に容易に組み込まれる。こ
の際、発泡性基材の内孔は一方の支持板の凸部の周壁部
に嵌挿される。前記発泡体に組み込まれた発泡性基材が
外部加熱によって発泡する際、発泡性基材はその両側部
が発泡制限用の第１・第２の両支持板に支持されている
ため、中空構造物の中空室の長手方向に対する発泡性基
材の発泡が第１・第２の両支持板によって制限される。Therefore, the first member for restricting foaming of the holder body is provided.
Since the support plate and the second support plate are joined by the joining means with the endless annular foam base material interposed therebetween, the endless annular foam base material is easily incorporated into the holder body. At this time, the inner hole of the foamable base material is inserted into the peripheral wall of the convex portion of one support plate. When the foamable base material incorporated in the foam is foamed by external heating, both sides of the foamable base material are supported by the first and second support plates for restricting foaming. Foaming of the foamable base material in the longitudinal direction of the hollow space of the object is limited by the first and second support plates.
【０００９】さらに、発泡性基材は、その内孔の全周面
が一方の支持板の凸部の周壁部に嵌合して支持されるた
め、前記中空室の内周壁面に向かう方向に対して発泡性
基材の発泡が効果的に促進される。前記発泡性基材は切
り離し部分がなく無端環状をなしている。このため、そ
の発泡性基材の発泡に基づく発泡体の周縁部が途切れる
ことなく中空室の内周壁面に確実かつ良好に密着する。
また、発泡体の内周側においても、一方の支持板の凸部
の周壁部に隙間なく確実に密着する。前記したように発
泡性基材が発泡して発泡体となることで、その発泡体と
ホルダ体によって中空室が遮断される。Further, since the foamable base material is supported by fitting the entire peripheral surface of the inner hole into the peripheral wall portion of the convex portion of one of the support plates, the foamable base material extends in the direction toward the internal peripheral wall surface of the hollow chamber. On the other hand, foaming of the foamable base material is effectively promoted. The foamable substrate has an endless annular shape without a cut-off portion. For this reason, the peripheral portion of the foam based on the foaming of the foamable base material is securely and satisfactorily adhered to the inner peripheral wall surface of the hollow chamber without interruption.
Further, also on the inner peripheral side of the foam, it is securely adhered to the peripheral wall of the convex portion of one of the support plates without any gap. As described above, when the foamable base material is foamed into a foam, the hollow chamber is blocked by the foam and the holder.
【００１０】また、請求項２の発明に係る中空構造物の
中空室遮断構造は、請求項１に記載の中空構造物の中空
室遮断構造において、ホルダ体の第１・第２の両支持板
のうち、他方の支持板には、一方の支持板の突設された
凸部に嵌合する嵌合孔が形成されている。したがって、
第１・第２の両支持板が相互に位置ずれすることなく確
実に結合されるとともに、他方の支持板の嵌合孔に相当
する分だけ材料費の節減や重量軽減が図られる。According to a second aspect of the present invention, there is provided a hollow structure shielding structure for a hollow structure according to the first aspect, wherein the first and second support plates of the holder body are provided. Of these, the other support plate has a fitting hole that fits into the protruding convex portion of the one support plate. Therefore,
The first and second support plates are securely connected without being displaced from each other, and material cost and weight are reduced by an amount corresponding to the fitting hole of the other support plate.
【００１１】請求項３の発明に係る中空構造物の中空室
遮断構造は、請求項１に記載の中空構造物の中空室遮断
構造において、結合手段は、ホルダ体の第１・第２の両
支持板のうち、一方の支持板に形成された結合用弾性ク
リップと、他方の支持板に形成された結合孔とを備え、
前記結合用弾性クリップが前記結合孔に差し込まれて弾
性的に係合することで、前記第１・第２の両支持板が発
泡性基材を間に挟んで結合される構成にしてある。した
がって、結合用弾性クリップを結合孔に差し込むという
きわめて簡単な操作によって、第１・第２の両支持板が
発泡性基材を間に挟んで確実に結合される。According to a third aspect of the present invention, there is provided a hollow structure shut-off structure for a hollow structure according to the first aspect, wherein the coupling means comprises a first and a second holder. Among the support plates, a coupling elastic clip formed on one of the support plates, and a coupling hole formed on the other support plate,
The first and second support plates are connected to each other with a foamable base material interposed therebetween by inserting the connecting elastic clip into the connecting hole and elastically engaging the connecting elastic clip. Therefore, by the extremely simple operation of inserting the elastic clip for coupling into the coupling hole, the first and second support plates are securely coupled with the foamable base material interposed therebetween.
【００１２】請求項４の発明に係る中空構造物の中空室
遮断構造は、請求項３に記載の中空構造物の中空室遮断
構造において、ホルダ体の第１・第２の両支持板のう
ち、少なくとも一方の支持板は、耐熱性の合成樹脂材に
よって成形されている。According to a fourth aspect of the present invention, there is provided a hollow structure shut-off structure for a hollow structure according to the third aspect, wherein the first and second support plates of the holder body are provided. At least one support plate is formed of a heat-resistant synthetic resin material.
【００１３】請求項５の発明に係る中空構造物の中空室
遮断構造は、請求項４に記載の中空構造物の中空室遮断
構造において、ホルダ体の第１・第２の両支持板のう
ち、耐熱性の合成樹脂材によって成形された一方の支持
板には、結合用弾性クリップが一体成形されている。し
たがって、一方の支持板と結合用弾性クリップとをそれ
ぞれ別個に製作して組み付ける手間が省け、その分だけ
コスト低減が図られる。According to a fifth aspect of the present invention, there is provided a hollow structure shut-off structure for a hollow structure according to the fourth aspect, wherein the first and second support plates of the holder body are provided. An elastic clip for connection is integrally formed on one support plate formed of a heat-resistant synthetic resin material. Therefore, it is possible to save the labor of separately manufacturing and assembling one of the support plates and the coupling elastic clip, thereby reducing the cost.
【００１４】請求項６の発明に係る中空構造物の中空室
遮断構造は、請求項４に記載の中空構造物の中空室遮断
構造において、ホルダ体の第１・第２の両支持板のう
ち、耐熱性の合成樹脂材によって成形された一方の支持
板には、取付用弾性クリップが一体成形され、その取付
用弾性クリップによって中空構造物の内壁面に前記ホル
ダ体を取り付けるための取付手段が構成されている。し
たがって、一方の支持板と取付用弾性クリップとをそれ
ぞれ別個に製作して組み付ける手間が省け、その分だけ
コスト低減が図られる。According to a sixth aspect of the present invention, there is provided a hollow-structure blocking structure for a hollow structure according to the fourth aspect, wherein the first and second support plates of the holder body are provided. An elastic clip for attachment is integrally formed on one of the support plates molded of a heat-resistant synthetic resin material, and the attaching means for attaching the holder body to the inner wall surface of the hollow structure by the elastic clip for attachment. It is configured. Therefore, it is possible to eliminate the need to separately manufacture and assemble the one support plate and the mounting elastic clip, thereby reducing the cost.
【００１５】[0015]
【発明の実施の形態】この発明の実施の形態を図１〜図
６にしたがって説明する。図３と図４において、中空構
造物としての車両ボディの中空パネル（例えば、ピラ
ー、ローカパネル、ルーフサイドパネル等）１は、イン
ナパネル２とアウタパネル４とが、これら両パネル２、
４のフランジ３、５においてスポット溶接されること
で、中空の箱形閉じ断面に形成されている。前記インナ
パネル２の所定位置には、後述する取付手段４０をなす
取付用弾性クリップ４１が回止めされて嵌込まれる長円
形、楕円形、四角形等の非円形の取付孔６が貫設されて
いる。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 3 and 4, a hollow panel (for example, a pillar, a local panel, a roof side panel, etc.) 1 of a vehicle body as a hollow structure has an inner panel 2 and an outer panel 4, which are both panels 2,
By spot welding at the flanges 3 and 5 of 4, a hollow box-shaped closed cross section is formed. At a predetermined position of the inner panel 2, a non-circular mounting hole 6 such as an ellipse, an ellipse, or a square is formed through which a mounting elastic clip 41 forming a mounting means 40 described later is locked and fitted. I have.
【００１６】前記中空パネル１の中空室７に対しホルダ
体２０によって装着された発泡性基材１０は、図５と図
６に示すように、外部加熱によって発泡し、発泡体１５
となることで前記中空室７を遮断するようになってい
る。前記発泡性基材１０は、中空室７の内周壁面に沿っ
て無端環状に形成されている。すなわち、発泡性基材１
０は、中空パネル１の中空室７の横断面形状よりも適宜
に小さい外形をなすとともに、その中央部には内孔１１
が形成されて無端環状の平板状に形成されている。さら
に、図１に示すように、発泡性基材１０には、その板面
の周縁部寄りにおいて後述する結合用弾性クリップ３１
が挿通される所要数（図では４つ）の挿通孔１２が形成
されている。この実施の形態において、発泡基材１０
は、１１０℃〜１９０℃前後の温度（車両ボディの焼付
塗装時の熱）によって発泡しかつ金属面に対して接着性
に優れた発泡性材料（発泡剤混入の合成樹脂材料）より
形成されている。このような特性をもつ発泡性材料に
は、例えば、特開平２−２７６８３６号公報に開示され
ている配合をもつ発泡性材料が知られている。The foamable base material 10 attached to the hollow chamber 7 of the hollow panel 1 by the holder body 20 is foamed by external heating as shown in FIGS.
As a result, the hollow chamber 7 is shut off. The foamable base material 10 is formed in an endless annular shape along the inner peripheral wall surface of the hollow chamber 7. That is, the foamable base material 1
0 has an outer shape appropriately smaller than the cross-sectional shape of the hollow chamber 7 of the hollow panel 1 and has an inner hole 11 at the center thereof.
Are formed to form an endless annular flat plate. Further, as shown in FIG. 1, the foamable base material 10 has a bonding elastic clip 31 to be described later near the periphery of the plate surface.
A required number (four in the figure) of insertion holes 12 through which the holes are inserted are formed. In this embodiment, the foam substrate 10
Is formed of a foaming material (synthetic resin material mixed with a foaming agent) which foams at a temperature of about 110 ° C. to 190 ° C. (heat during baking painting of a vehicle body) and has excellent adhesiveness to a metal surface. I have. As a foamable material having such characteristics, for example, a foamable material having a composition disclosed in Japanese Patent Application Laid-Open No. 2-27636 is known.
【００１７】図１と図２に示すように、前記ホルダ体２
０は、発泡性基材１０の両側を支持してその発泡性基材
１０の発泡方向を規制するための発泡制限用の第１支持
板２１と第２支持板２５とを備えて分割構成されてい
る。さらに、ホルダ体２０は取付手段４０によって中空
パネル１の取付孔６に回止めされて取り付けられる。前
記第１・第２の両支持板２１、２５は、耐熱性の硬質合
成樹脂材の射出成形によって平板状にそれぞれ成形され
かつ発泡性基材１０と略同じ大きさの外形を有してい
る。また、第１・第２の両支持板２１、２５の間には、
発泡性基材１０を間に挟んでこれら第１・第２の両支持
板２１、２５を結合する結合手段３０が設けられてい
る。As shown in FIGS. 1 and 2, the holder 2
Numeral 0 is divided and provided with a first support plate 21 and a second support plate 25 for foaming restriction for supporting both sides of the foamable base material 10 and regulating the foaming direction of the foamable base material 10. ing. Further, the holder body 20 is attached to the mounting hole 6 of the hollow panel 1 by being stopped by the mounting means 40. The first and second support plates 21 and 25 are each formed into a flat plate by injection molding of a heat-resistant hard synthetic resin material, and have an outer shape substantially the same size as the foamable base material 10. . Further, between the first and second support plates 21 and 25,
A connecting means 30 for connecting the first and second support plates 21 and 25 with the foamable base material 10 interposed therebetween is provided.
【００１８】この実施の形態において、第２支持板２５
には、その中央部において発泡性基材１０の内孔１１と
略同じ大きさの内孔２６が形成されている。さらに、第
２支持板２５には、その板面の周縁部寄りにおいて後述
する結合用弾性クリップ３１に対応する所要数（図１で
は４つ）の角穴状の結合孔２７が形成されている。これ
に対し、第１支持板２１の内面（第２支持板２５に対面
する側）の中央部には、発泡性基材１０の内孔１１及び
第２支持板２５の内孔２６にそれぞれ嵌挿される周壁部
２３を有する凸部２２が突設されている。In this embodiment, the second support plate 25
Is formed with an inner hole 26 having substantially the same size as the inner hole 11 of the foamable base material 10 at the center thereof. Further, the second support plate 25 has a required number (four in FIG. 1) of square hole-shaped coupling holes 27 corresponding to a coupling elastic clip 31 to be described later formed near the periphery of the plate surface. . On the other hand, the center of the inner surface of the first support plate 21 (the side facing the second support plate 25) is fitted into the inner hole 11 of the foamable base material 10 and the inner hole 26 of the second support plate 25, respectively. A protruding portion 22 having a peripheral wall portion 23 to be inserted protrudes.
【００１９】また、第１支持板２１には、その外周縁の
所定位置に取付手段４０を構成する所要数（図１では２
つ）の取付用弾性クリップ４１が第１支持板２１の射出
成形と同時に一体成形されている。図１と図３に示すよ
うに、前記取付用弾性クリップ４１は、中空パネル１の
取付孔６に差し込まれて弾性的に係着するもので、第１
支持板２１の外周縁に張り出された台座部４２と、その
台座部４２の台座面から突設された脚部４３と、その脚
部４３の先端部の両側から折返し状に延出されかつ取付
孔６に差し込まれて弾性的に係合する一対の係止片４４
とを備えている。The first support plate 21 has a required number of mounting means 40 at predetermined positions on the outer peripheral edge thereof (two in FIG. 1).
The mounting elastic clips 41 are integrally formed simultaneously with the injection molding of the first support plate 21. As shown in FIGS. 1 and 3, the mounting elastic clip 41 is inserted into the mounting hole 6 of the hollow panel 1 and elastically engages.
A pedestal portion 42 protruding from the outer peripheral edge of the support plate 21, a leg portion 43 protruding from the pedestal surface of the pedestal portion 42, and a folded portion extending from both sides of a tip end portion of the leg portion 43 and A pair of locking pieces 44 which are inserted into the mounting holes 6 and elastically engage with each other.
And
【００２０】また、第１支持板２１の内面には、その周
縁部寄りに結合手段３０を構成する所要数（図１では４
つ）の結合用弾性クリップ３１が第１支持板２１の射出
成形と同時に一体成形されている。図１と図４に示すよ
うに、前記結合用弾性クリップ３１は、第１支持板２１
の内面に突設された脚部３２と、その脚部３２の先端部
の両側から折返し状に延出されかつ第２支持板２５の結
合孔２７に差し込まれて弾性的に係合する一対の係止片
３３とを備えている。On the inner surface of the first support plate 21, a required number of connecting means 30 (4 in FIG. 1) is formed near the periphery thereof.
) Are integrally formed at the same time as the injection molding of the first support plate 21. As shown in FIGS. 1 and 4, the coupling elastic clip 31 is attached to the first support plate 21.
And a pair of legs 32 protruding from the inner surface of the leg 32 and extending in a folded manner from both sides of the distal end of the leg 32 and inserted into the coupling holes 27 of the second support plate 25 to elastically engage therewith. And a locking piece 33.
【００２１】この実施の形態の中空構造物の中空室遮断
構造は上述したように構成される。したがって、まず、
図２に示すように、第１支持板２１の結合用弾性クリッ
プ３１が発泡性基材１０の挿通孔１２を通して第２支持
板２５の結合孔２７に差し込まれる。これによって、結
合用弾性クリップ３１の係止片３３が結合孔２７に弾性
的に係合する。そして、係止片３３と結合孔２７との係
合力によって第１支持板２１と第２支持板２５とが発泡
性基材１０を間に挟んで結合される。この際、第１支持
板２１の凸部２２の周壁部２３が発泡性基材１０の内孔
１１及び第２支持板２５の内孔２６にそれぞれ嵌合す
る。The hollow structure blocking structure of the hollow structure according to this embodiment is configured as described above. Therefore, first,
As shown in FIG. 2, the coupling elastic clip 31 of the first support plate 21 is inserted into the coupling hole 27 of the second support plate 25 through the insertion hole 12 of the foamable base material 10. Thereby, the locking piece 33 of the coupling elastic clip 31 elastically engages with the coupling hole 27. Then, the first support plate 21 and the second support plate 25 are coupled to each other with the foamable base material 10 interposed therebetween by the engagement force between the locking pieces 33 and the coupling holes 27. At this time, the peripheral wall portion 23 of the convex portion 22 of the first support plate 21 fits into the inner hole 11 of the foamable base material 10 and the inner hole 26 of the second support plate 25, respectively.
【００２２】前記したように発泡性基材１０を保持した
ホルダ体２０は、図３に示すように、その第１支持板２
１に設けられた取付用弾性クリップ４１においてインナ
パネル２の取付孔６に差し込まれる。これによって、取
付用弾性クリップ４１の係止片４４が取付孔６に弾性的
に係合する。そして、係止片４４と取付孔６との係合力
によってホルダ体２０がインナパネル２に取り付けられ
る。その後、インナパネル２とアウタパネル４とがその
相互のフランジ３、５においてスポット溶接され、中空
の箱形閉じ断面をなす中空パネル１が構成される。ここ
で、外部からの加熱、例えば、車両ボディの焼付塗装の
際の外部加熱によって前記発泡性基材１０が図５と図６
に示すように発泡し、発泡体１５となる。As shown in FIG. 3, the holder body 20 holding the foamable base material 10 has the first support plate 2 as shown in FIG.
1 is inserted into the mounting hole 6 of the inner panel 2 at the mounting elastic clip 41 provided on the inner panel 2. Thereby, the locking piece 44 of the mounting elastic clip 41 is elastically engaged with the mounting hole 6. Then, the holder body 20 is attached to the inner panel 2 by the engaging force between the locking pieces 44 and the attachment holes 6. Thereafter, the inner panel 2 and the outer panel 4 are spot-welded at their mutual flanges 3 and 5 to form the hollow panel 1 having a hollow box-shaped closed cross section. Here, the foamable base material 10 is heated by external heating, for example, by external heating at the time of baking of the vehicle body, as shown in FIGS.
As shown in FIG.
【００２３】前記発泡性基材１０が発泡する際、発泡性
基材１０はその両側部が発泡制限用の第１・第２の両支
持板２１、２５に支持されている。このため、中空パネ
ル１の中空室７の長手方向に対する発泡性基材１０の発
泡が第１・第２の両支持板２１、２５によって制限され
る。さらに、発泡性基材１０は、その内孔１１の全周面
が第１支持板２１の凸部２２の周壁部２３に嵌合して支
持される。このため、中空パネル１の中空室７の内周壁
面に向かう方向に対して発泡性基材１０の発泡が効果的
に促進される。When the foamable base material 10 foams, both sides of the foamable base material 10 are supported by first and second support plates 21 and 25 for restricting foaming. For this reason, the foaming of the foamable base material 10 in the longitudinal direction of the hollow chamber 7 of the hollow panel 1 is restricted by the first and second support plates 21 and 25. Further, the foamable base material 10 is supported by fitting the entire peripheral surface of the inner hole 11 into the peripheral wall portion 23 of the convex portion 22 of the first support plate 21. Therefore, the foaming of the foamable base material 10 is effectively promoted in the direction toward the inner peripheral wall surface of the hollow chamber 7 of the hollow panel 1.
【００２４】特に、未発泡の発泡性基材１０は切り離し
部分がなく、無端環状をなしている。このため、発泡性
基材１０は無端環状をなして発泡し、その発泡に基づく
発泡体１５の周縁部が途切れることなく中空室５の内周
壁面に確実かつ良好に密着する。また、発泡体１５の内
周側においても、第１支持板２１の凸部２２の周壁部２
３に隙間なく確実に密着する。前記したように発泡性基
材１０が発泡して発泡体１５となることで、その発泡体
１５とホルダ体２０によって中空室５が遮断される。こ
の結果、きわめて少ない量の発泡性基材１０の発泡に基
づく発泡体１５とホルダ体２０によって中空室５が効率
よくかつ遮断不良なく確実に遮断される。In particular, the unfoamed foamable base material 10 has no cut-off portion and has an endless annular shape. For this reason, the foamable base material 10 foams in an endless annular shape, and the peripheral portion of the foam 15 based on the foaming is securely and satisfactorily adhered to the inner peripheral wall surface of the hollow chamber 5 without interruption. Also, on the inner peripheral side of the foam 15, the peripheral wall 2 of the convex portion 22 of the first support plate 21 is formed.
3. Make sure that it adheres tightly to gaps 3. As described above, when the foamable base material 10 foams to form the foam 15, the hollow chamber 5 is blocked by the foam 15 and the holder body 20. As a result, the hollow chamber 5 is efficiently and reliably shut off by the very small amount of the foam 15 and the holder body 20 based on the foaming of the expandable base material 10 without any poor shut-off.
【００２５】なお、前記実施の形態において、ホルダ体
２０を分割構成している第１支持板２１と、第２支持板
２５とが耐熱性の硬質合成樹脂材によってそれぞれ成形
される場合を例示したが、これに限定するものではな
い。例えば、第１・第２の両支持板２１、２５を金属板
によってそれぞれ形成してもよい。さらに、第１支持板
２１を耐熱性の合成樹脂材によって成形し、第２支持板
２５を金属板によって形成してもよい。In the above-described embodiment, the case where the first support plate 21 and the second support plate 25 which divide the holder body 20 are formed of a heat-resistant hard synthetic resin material is exemplified. However, it is not limited to this. For example, the first and second support plates 21 and 25 may be formed of metal plates, respectively. Further, the first support plate 21 may be formed of a heat-resistant synthetic resin material, and the second support plate 25 may be formed of a metal plate.
【００２６】[0026]
【発明の効果】以上述べたように、この発明によれば、
無端環状に形成された少量の発泡性基材によって中空構
造物の中空室を効率よく遮断することができるととも
に、発泡性基材の切り離された開口部が原因となる遮断
不良を解消することができ、制振・防音等を良好に図る
ことができる。As described above, according to the present invention,
It is possible to efficiently shut off the hollow chamber of the hollow structure with a small amount of the foamable base material formed in an endless annular shape, and to eliminate a poor blocking caused by the separated opening of the foamable base material. As a result, vibration suppression, soundproofing, etc. can be satisfactorily achieved.
【図１】この発明の実施の形態のホルダ体を分割構成し
ている第１支持板と第２支持板が発泡性基材を間に挟ん
で分離された状態を示す斜視図である。FIG. 1 is a perspective view showing a state in which a first support plate and a second support plate, which divide a holder body according to an embodiment of the present invention, are separated with a foamable base material interposed therebetween.
【図２】同じく第１支持板と第２支持板とが結合されて
ホルダ体に発泡性基材が組み付けられた状態を示す斜視
図である。FIG. 2 is a perspective view showing a state in which a first support plate and a second support plate are connected to each other and a foamable base material is attached to a holder body.
【図３】同じく中空構造物としての中空パネルの中空室
に対しホルダ体が取付けられた状態を示す中空パネルの
横断面図である。FIG. 3 is a cross-sectional view of the hollow panel showing a state where a holder body is attached to a hollow chamber of the hollow panel as a hollow structure.
【図４】同じく図３のＩＶ−ＩＶ線に基づく中空パネル
の縦断面図である。4 is a longitudinal sectional view of the hollow panel based on the line IV-IV of FIG. 3;
【図５】同じく発泡性基材が発泡して発泡体となった状
態を示す中空パネルの横断面図である。FIG. 5 is a cross-sectional view of a hollow panel showing a state in which a foamable base material is foamed to form a foam.
【図６】同じく図５のＶＩ−ＶＩ線に基づく中空パネル
の縦断面図である。FIG. 6 is a longitudinal sectional view of the hollow panel based on the line VI-VI of FIG. 5;
【図７】従来の中空室遮断構造をなすホルダープレート
と発泡性基材とを分離して示す斜視図である。FIG. 7 is a perspective view showing a holder plate and a foamable base material forming a conventional hollow chamber blocking structure separately.
【図８】他の従来の中空室遮断構造に用いられる発泡性
基材を示す斜視図である。FIG. 8 is a perspective view showing a foamable base material used in another conventional hollow chamber blocking structure.
１ 中空パネル（中空構造物） ６ 取付孔 ７ 中空室 １０ 発泡性基材 １１ 内孔 １５ 発泡体 ２０ ホルダ体 ２１ 第１支持板 ２２ 凸部 ２３ 周壁部 ２５ 第２支持板 ２６ 内孔 ２７ 結合孔 ３０ 結合手段 ３１ 結合用弾性クリップ ４０ 取付手段 ４１ 取付用弾性クリップ DESCRIPTION OF SYMBOLS 1 Hollow panel (hollow structure) 6 Mounting hole 7 Hollow chamber 10 Foamable base material 11 Inner hole 15 Foam 20 Holder body 21 First support plate 22 Convex part 23 Peripheral wall part 25 Second support plate 26 Inner hole 27 Connection hole DESCRIPTION OF SYMBOLS 30 Coupling means 31 Coupling elastic clip 40 Mounting means 41 Mounting elastic clip
Claims (6)
よって装着された発泡性基材が外部加熱によって発泡し
発泡体となることで前記中空室を遮断する中空構造物の
中空室遮断構造であって、 前記発泡性基材は、前記中空室の内周壁面に沿って無端
環状に形成され、 前記ホルダ体は、取付手段によって前記中空構造物の内
壁面に取り付けられるとともに、前記発泡性基材の両側
をそれぞれ支持して同発泡性基材の発泡方向を規制する
ための発泡制限用の第１支持板と第２支持板によって分
割構成され、 前記第１・第２の両支持板の間には、前記発泡性基材を
間に挟んでこれら第１・第２の両支持板を結合する結合
手段が設けられ、 さらに、前記第１・第２の両支持板のうち、一方の支持
板には、前記発泡性基材の内孔に嵌挿される周壁部を有
する凸部が突設されている中空構造物の中空室遮断構
造。1. A hollow chamber blocking structure of a hollow structure in which a foamable base material mounted by a holder body is foamed by external heating to form a foam with respect to the hollow chamber of the hollow structure, thereby blocking the hollow chamber. The foamable base material is formed in an endless annular shape along an inner peripheral wall surface of the hollow chamber, and the holder body is attached to an inner wall surface of the hollow structure by attaching means, A first support plate and a second support plate for restricting foaming for supporting the both sides of the base material and regulating the foaming direction of the foamable base material; and a divided structure between the first and second support plates. Is provided with connecting means for connecting the first and second support plates with the foamable base material interposed therebetween. Further, one of the first and second support plates is supported. The plate has a peripheral wall portion inserted into the inner hole of the foamable base material. Cavity blocking structure of the hollow structure protruding portion is protruded to have.
断構造において、ホルダ体の第１・第２の両支持板のう
ち、他方の支持板には、一方の支持板の突設された凸部
に嵌合する嵌合孔が形成されている中空構造物の中空室
遮断構造。2. The hollow structure blocking structure for a hollow structure according to claim 1, wherein one of the first and second support plates of the holder body has one support plate projecting therefrom. Hollow structure of a hollow structure having a fitting hole formed to fit into the formed convex portion.
断構造において、結合手段は、ホルダ体の第１・第２の
両支持板のうち、一方の支持板に形成された結合用弾性
クリップと、他方の支持板に形成された結合孔とを備
え、前記結合用弾性クリップが前記結合孔に差し込まれ
て弾性的に係合することで、前記第１・第２の両支持板
が発泡性基材を間に挟んで結合される構成にしてある中
空構造物の中空室遮断構造。3. The coupling structure according to claim 1, wherein the coupling means is formed on one of the first and second support plates of the holder body. An elastic clip, and a coupling hole formed in the other support plate, wherein the coupling elastic clip is inserted into the coupling hole and elastically engaged with the first and second support plates. Is a structure in which a hollow structure is connected with a foamable base material interposed therebetween.
断構造において、ホルダ体の第１・第２の両支持板のう
ち、少なくとも一方の支持板は、耐熱性の合成樹脂材に
よって成形されている中空構造物の中空室遮断構造。4. The hollow structure of a hollow structure according to claim 3, wherein at least one of the first and second support plates of the holder body is made of a heat-resistant synthetic resin material. Hollow chamber blocking structure of a hollow structure that is being molded.
断構造において、ホルダ体の第１・第２の両支持板のう
ち、耐熱性の合成樹脂材によって成形された一方の支持
板には、結合用弾性クリップが一体成形されている中空
構造物の中空室遮断構造。5. The hollow structure of a hollow structure according to claim 4, wherein one of the first and second support plates of the holder body is formed of a heat-resistant synthetic resin material. , A hollow structure blocking structure of a hollow structure in which a coupling elastic clip is integrally formed.
断構造において、ホルダ体の第１・第２の両支持板のう
ち、耐熱性の合成樹脂材によって成形された一方の支持
板には、取付用弾性クリップが一体成形され、その取付
用弾性クリップによって中空構造物の内壁面に前記ホル
ダ体を取り付けるための取付手段が構成されている中空
構造物の中空室遮断構造。6. The hollow structure of a hollow structure according to claim 4, wherein one of the first and second support plates of the holder body is formed of a heat-resistant synthetic resin material. , An elastic clip for mounting is integrally formed, and a mounting means for mounting the holder body on an inner wall surface of the hollow structure is formed by the elastic clip for mounting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02989898A JP3819139B2 (en) | 1998-02-12 | 1998-02-12 | Hollow chamber blocking structure for hollow structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02989898A JP3819139B2 (en) | 1998-02-12 | 1998-02-12 | Hollow chamber blocking structure for hollow structures |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11226971A true JPH11226971A (en) | 1999-08-24 |
| JP3819139B2 JP3819139B2 (en) | 2006-09-06 |
Family
ID=12288806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02989898A Expired - Fee Related JP3819139B2 (en) | 1998-02-12 | 1998-02-12 | Hollow chamber blocking structure for hollow structures |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3819139B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006001472A (en) * | 2004-06-18 | 2006-01-05 | Iida Sangyo Kk | Clearance filling unit |
| US8087916B2 (en) | 2005-12-15 | 2012-01-03 | Cemedine Henkel Co., Ltd. | Holding jig for a foamable material |
| EP3063053B1 (en) | 2013-10-31 | 2020-02-12 | Sika Technology AG | Baffle or reinforcement element for sealing and/or reinforcing a cavity and method for producing such a baffle or reinforcement element |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7169261B2 (en) * | 2019-12-25 | 2022-11-10 | 本田技研工業株式会社 | hollow chamber blocker |
-
1998
- 1998-02-12 JP JP02989898A patent/JP3819139B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006001472A (en) * | 2004-06-18 | 2006-01-05 | Iida Sangyo Kk | Clearance filling unit |
| US8087916B2 (en) | 2005-12-15 | 2012-01-03 | Cemedine Henkel Co., Ltd. | Holding jig for a foamable material |
| US9096005B2 (en) | 2005-12-15 | 2015-08-04 | Cemedine Henkel Co., Ltd. | Holding jig for a foamable material |
| EP3063053B1 (en) | 2013-10-31 | 2020-02-12 | Sika Technology AG | Baffle or reinforcement element for sealing and/or reinforcing a cavity and method for producing such a baffle or reinforcement element |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3819139B2 (en) | 2006-09-06 |
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