JPH11254571A - Hollow chamber interceptor in hollow structure and manufacture thereof - Google Patents
Hollow chamber interceptor in hollow structure and manufacture thereofInfo
- Publication number
- JPH11254571A JPH11254571A JP10063333A JP6333398A JPH11254571A JP H11254571 A JPH11254571 A JP H11254571A JP 10063333 A JP10063333 A JP 10063333A JP 6333398 A JP6333398 A JP 6333398A JP H11254571 A JPH11254571 A JP H11254571A
- Authority
- JP
- Japan
- Prior art keywords
- hollow
- support plate
- base material
- hollow chamber
- foamable base
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/18—Filling preformed cavities
- B29C44/188—Sealing off parts of the cavities
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、中空構造物にお
ける中空室遮断具とその製造方法に関し、主として複数
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
両の中空パネル（ボディのピラー、ロッカーパネル、ル
ーフサイドパネル等）の制振、防音等を高めるために、
その中空室を遮断する中空構造物における中空室遮断具
とその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hollow chamber blocking device for a hollow structure and a method for manufacturing the same, and more particularly to a hollow panel (body pillar, Rocker panels, roof side panels, etc.)
The present invention relates to a hollow-chamber blocking device for a hollow structure that blocks the hollow chamber and a method of manufacturing the same.
【０００２】[0002]
【従来の技術】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−
２７４４８号に開示されている中空構造物における中空
室遮断具がある。このような中空構造物における中空室
遮断具１１０においては、図１３と図１４に示すよう
に、中空構造物としての車両の中空パネル１０１の中空
室１０７に取り付けられる一対の支持プレート１２１
と、これら一対の支持プレート１２１の間に差し込まれ
る発泡性基材１１１と、を備えている。前記一対の支持
プレート１２１は、中空パネル１０１の中空室１０７の
長手方向に直交する平板状をなしかつナイロン等の合成
樹脂材より一体成形されている。さらに、一対の支持プ
レート１２１の間には、これら一対の支持プレート１２
１を所定の間隔を隔てて一体に連結する所要数の連結片
１２３と、中空パネル１０１の取付孔１０６に差し込ま
れて弾性的に係合する係止クリップ１３０とがそれぞれ
一体成形されている。そして、一対の支持プレート１２
１の間に発泡性基材１１１が差し込まれた後、前記一対
の支持プレート１２１は、その係止クリップ１３０にお
いて中空パネル１０１の中空室１０７に装着される。そ
の後、外部加熱によって発泡性基材１１１が発泡して発
泡体１１５となることで、図１４に示すように、中空室
１０７が効率よく遮断されるようになっている。2. Description of the Related Art In order to efficiently block a hollow chamber of a hollow structure with a small amount of a foamable base material, for example, Japanese Patent Application Laid-Open No. Hei 8-
There is a hollow chamber blocking device in a hollow structure disclosed in Japanese Patent No. 27448. As shown in FIGS. 13 and 14, in the hollow chamber blocking device 110 of such a hollow structure, a pair of support plates 121 attached to the hollow chamber 107 of the hollow panel 101 of the vehicle as the hollow structure are used.
And a foamable base material 111 inserted between the pair of support plates 121. The pair of support plates 121 have a flat plate shape perpendicular to the longitudinal direction of the hollow chamber 107 of the hollow panel 101 and are integrally formed of a synthetic resin material such as nylon. Further, between the pair of support plates 121, the pair of support plates 12
A required number of connecting pieces 123 for integrally connecting the first and second members 1 at predetermined intervals and a locking clip 130 which is inserted into the mounting hole 106 of the hollow panel 101 and elastically engages with each other are integrally formed. And a pair of support plates 12
After the foamable base material 111 is inserted between the support plates 121, the pair of support plates 121 are attached to the hollow chamber 107 of the hollow panel 101 at the locking clips 130. Thereafter, the foamable base material 111 is foamed by the external heating to form a foam 115, so that the hollow chamber 107 is efficiently shut off as shown in FIG.
【０００３】[0003]
【発明が解決しようとする課題】前記したように構成さ
れた中空構造物における中空室遮断具１１０において、
合成樹脂製の一対の支持プレート１２１は、その表面が
平坦面に形成されているため、中空パネル１０１の中空
室１０７内の音波が一対の支持プレート１２１の表面に
衝突すると、その音波は殆ど減衰されることなく反射さ
れ、残音として残る不具合があった。SUMMARY OF THE INVENTION In the hollow chamber blocking device 110 of the hollow structure configured as described above,
Since the surfaces of the pair of support plates 121 made of synthetic resin are formed as flat surfaces, when the sound waves in the hollow chamber 107 of the hollow panel 101 collide with the surfaces of the pair of support plates 121, the sound waves are almost attenuated. There was a problem that the sound was reflected without being heard and remained as a residual sound.
【０００４】この発明の目的は、前記問題点に鑑み、構
造を複雑化することなく中空パネルの中空室内の音波を
減衰させ、音波の反射による残音を軽減することができ
る中空構造物における中空室遮断具を提供することであ
る。SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a hollow structure in a hollow structure capable of attenuating sound waves in a hollow chamber of a hollow panel without complicating the structure and reducing residual sound due to sound wave reflection. It is to provide a room shutoff.
【０００５】[0005]
【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における中空室遮
断具は、中空構造物の中空室に取り付けられる支持プレ
ートと、その支持プレートに支持されかつ外部加熱によ
って発泡し発泡体となることで前記中空室を遮断する発
泡性基材と、を備えた中空構造物における中空室遮断具
であって、前記支持プレートは前記中空室の長手方向に
直交する平板状に形成されるとともに、その板面には所
要数の連結孔が貫設される一方、前記発泡性基材は、前
記支持プレートの両面を覆うようにして設けられた両壁
部を備えるとともに、その両壁部は前記支持プレートの
所要数の連結孔によって連結されている。According to one aspect of the present invention, there is provided a hollow structure blocking device for a hollow structure according to the first aspect of the present invention, comprising: a support plate attached to a hollow chamber of the hollow structure; And a foamable base material which is foamed by external heating to form a foam to shut off the hollow chamber, and a hollow chamber shutoff device in a hollow structure comprising: Along with being formed in a flat plate shape orthogonal to the longitudinal direction, a required number of connection holes are formed through the plate surface, while the foamable base material is provided so as to cover both surfaces of the support plate. It has both walls, and both walls are connected by a required number of connection holes of the support plate.
【０００６】したがって、支持プレートとともに発泡性
基材が中空構造物の中空室に取り付けられ、外部加熱に
よって発泡性基材が発泡する際、発泡性基材の両壁部は
支持プレートに接して保持されることで、前記中空室の
長手方向に対しては発泡性基材の発泡が制限され、中空
室の長手方向に直交する方向に対しては発泡性基材の発
泡が効果的に促進される。また、発泡性基材の両壁部
は、支持プレートの所要数の連結孔によって連結されて
いるため、発泡性基材が発泡する際に、その発泡性基材
の両壁部が支持プレートの表面から剥離して垂れ落ちる
という不具合が防止される。このため、発泡性基材は、
支持プレートの全表面を覆った状態で発泡し発泡体とな
り、その発泡体の周縁部が中空室の内周壁面に確実に密
着する。これによって、少量の発泡性基材の発泡に基づ
く発泡体によって、中空室が確実に遮断される。前記し
たように、支持プレートの全表面を覆った状態で発泡性
基材が発泡し発泡体となり、中空室が遮断されるため、
中空室内の音波は、支持プレートに直接衝突することな
く発泡体において受け止められて遮断される。前記発泡
体の表面は、発泡によって凹凸面をなすため、発泡体の
表面の凹凸面に当たった音波は、その発泡体の凹凸面に
おいて良好に減衰される。Therefore, when the foamable base material is attached to the hollow chamber of the hollow structure together with the support plate, and the foamable base material is foamed by external heating, both walls of the foamable base material are held in contact with the support plate. By doing so, foaming of the foamable base material is restricted in the longitudinal direction of the hollow chamber, and foaming of the foamable base material is effectively promoted in a direction perpendicular to the longitudinal direction of the hollow chamber. You. Further, since both walls of the foamable base material are connected by the required number of connection holes of the support plate, when the foamable base material foams, both walls of the foamable base material are connected to the support plate. The problem of peeling from the surface and dripping is prevented. For this reason, the foamable base material is
The foam is formed into a foam while covering the entire surface of the support plate, and the peripheral portion of the foam securely adheres to the inner peripheral wall surface of the hollow chamber. This ensures that the hollow space is shut off by the foam based on the foaming of the foamable base material in a small amount. As described above, since the foamable base material foams into a foam while covering the entire surface of the support plate, and the hollow chamber is shut off,
Sound waves within the cavity are received and blocked in the foam without directly impacting the support plate. Since the surface of the foam has an uneven surface due to foaming, sound waves hitting the uneven surface of the foam are well attenuated on the uneven surface of the foam.
【０００７】また、請求項２に記載の中空構造物におけ
る中空室遮断具は、請求項１に記載の中空構造物におけ
る中空室遮断具において、支持プレートの上部には発泡
性基材が発泡する際の垂れ落ちを防止するための垂落防
止用受縁が張り出されている。したがって、支持プレー
トの上部の垂落防止用受縁においても発泡性基材の上部
における発泡体の一部が受け止められて垂れ落ちが防止
される。According to a second aspect of the present invention, there is provided a hollow structure blocking device for a hollow structure according to the first aspect, wherein the foamable base material is foamed on an upper portion of the support plate. A dripping prevention receiving edge for preventing dripping at the time is protruding. Therefore, a part of the foam at the upper portion of the foamable base material is also received at the drop-prevention receiving edge at the upper portion of the support plate, and the dripping is prevented.
【０００８】請求項３の発明に係る中空構造物における
中空室遮断具の製造方法は、請求項１に記載の中空構造
物における中空室遮断具を製造する方法であって、中空
構造物の中空室の長手方向に直交する平板状をなしその
板面に所要数の連結孔が貫設された支持プレートを形成
する工程と、発泡性基材に対応するキャビティを有する
成形型内に前記支持プレートをセットした後、前記キャ
ビティに発泡性材料を射出することで前記支持プレート
の両面を覆う両壁部を備えた発泡性基材を成形すると同
時に、前記支持プレートの所要数の連結孔にも前記発泡
性材料を充填して連結部を成形する成形工程と、を備え
ている。したがって、支持プレートと発泡性基材を備え
た中空室遮断具が容易に製造され、安価に提供すること
ができる。According to a third aspect of the present invention, there is provided a method for manufacturing a hollow chamber shutoff device for a hollow structure according to the first aspect, wherein the hollow structure shutoff device for a hollow structure is provided. Forming a support plate having a flat plate shape perpendicular to the longitudinal direction of the chamber and having a required number of connection holes formed in the plate surface thereof; and forming the support plate in a mold having a cavity corresponding to the foamable base material. After setting, a foamable base material having both walls covering both surfaces of the support plate is formed by injecting a foamable material into the cavity, and the required number of connection holes of the support plate are also formed at the same time. And a molding step of filling the foamable material to form the connection portion. Therefore, the hollow-chamber blocking device including the support plate and the foamable base material can be easily manufactured and provided at low cost.
【０００９】[0009]
【発明の実施の形態】（実施の形態１）この発明の実施
の形態１を図１〜図８にしたがって説明する。図１と図
２において、中空構造物としての車両のピラー、ロッカ
パネル、ルーフパネル等の中空パネル１は、インナパネ
ル２とアウタパネル４とが、これらインナパネル２とア
ウタパネル４との相互のフランジ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、支持プレー
ト２１を回り止めして取り付けるための長円形、楕円
形、四角形等の非円形の取付孔６が貫設されている。(Embodiment 1) Embodiment 1 of the present invention will be described with reference to FIGS. 1 and 2, a hollow panel 1 such as a pillar, a rocker panel, or a roof panel of a vehicle as a hollow structure includes an inner panel 2 and an outer panel 4, and a mutual flange 3 between the inner panel 2 and the outer panel 4. 5 and 5 are spot-welded to form a hollow box-shaped closed cross section. 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 provided to stop and mount the support plate 21.
【００１０】前記中空パネル１の中空室７を遮断する中
空室遮断具１０は、支持プレート２１と発泡性基材１１
とを備えている。図２と図４に示すように、前記支持プ
レート２１は、耐熱性合成樹脂材によって成形されると
ともに、中空室７の長手方向に直交する平板状をなして
いる。前記支持プレート２１の板面には所要数の連結孔
２２が貫設されている。この実施の形態１において、支
持プレート２１の板面には多数の小孔状の連結孔２２が
適宜間隔で配列されている。さらに、支持プレート２１
の上部には発泡性基材１１が発泡する際の垂れ落ちを防
止するための垂落防止用受縁２３が略水平状に張り出さ
れている。The hollow chamber blocking device 10 for blocking the hollow chamber 7 of the hollow panel 1 includes a support plate 21 and a foamable base material 11.
And As shown in FIGS. 2 and 4, the support plate 21 is formed of a heat-resistant synthetic resin material and has a flat plate shape orthogonal to the longitudinal direction of the hollow chamber 7. A required number of connection holes 22 are formed through the plate surface of the support plate 21. In the first embodiment, a large number of small connection holes 22 are arranged at appropriate intervals on the plate surface of the support plate 21. Further, the support plate 21
On the upper part of the upper part, a dripping prevention receiving edge 23 for preventing dripping when the foamable base material 11 foams is protruded substantially horizontally.
【００１１】また、支持プレート２１の下部中央部に
は、インナパネル２の取付孔６に差し込まれて弾性的に
係合する係止クリップ３０が一体に形成されている。前
記係止クリップ３０は、支持プレート２１の下面中央部
に張り出された台座部３１と、その台座部３１から突出
されて取付孔６に差し込まれる脚部３２と、その脚部３
２の先端から延出され取付孔６に弾性的に係合する弾性
係止片３３とを備えている。A locking clip 30 which is inserted into the mounting hole 6 of the inner panel 2 and elastically engages with the lower central portion of the support plate 21 is integrally formed. The locking clip 30 includes a pedestal portion 31 projecting from the center of the lower surface of the support plate 21, a leg portion 32 protruding from the pedestal portion 31 and inserted into the mounting hole 6, and a leg portion 3.
2 and a resilient locking piece 33 that extends from the front end of the mounting hole 2 and resiliently engages with the mounting hole 6.
【００１２】発泡性基材１１は、前記支持プレート２１
の両面及び周縁部の略全表面を覆うようにして設けられ
ている。前記発泡性基材１１は、１１０℃〜１９０℃前
後の温度で発泡、硬化され、独立気泡の発泡体１５とな
って金属面や塗装面に密着する発泡剤混合の合成樹脂材
を主成分とする発泡性材料よりなる。さらに、支持プレ
ート２１を境とする発泡性基材１１の両壁部は、支持プ
レート２１の多数の連結孔２２にそれぞれ充填された連
結部１２によって結合されている。これら連結部１２に
おいても発泡性材料によって構成されている。The foamable base material 11 is provided on the support plate 21.
Are provided so as to cover almost both surfaces and substantially the entire surface of the peripheral portion. The foamable base material 11 is mainly composed of a synthetic resin material mixed with a foaming agent, which is foamed and cured at a temperature of about 110 ° C. to 190 ° C., becomes a closed-cell foam 15, and adheres to a metal surface or a painted surface. Made of a foamable material. Further, both walls of the foamable base material 11 bounded by the support plate 21 are connected by the connection portions 12 filled in a large number of connection holes 22 of the support plate 21. These connecting portions 12 are also made of a foamable material.
【００１３】この実施の形態１の中空室遮断具１０は上
述したように構成される。したがって、図１と図２に示
すように、中空室遮断具１０は、その係止クリップ３０
と取付孔６によって、車両の中空パネル１の中空室７に
取り付けられた後、外部加熱によって発泡性基材１１が
発泡して発泡体１５となることで中空室７が遮断され
る。すなわち、前記中空パネル１を構成するインナパネ
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る前に、インナパネル２の取
付孔６に中空室遮断具１０が、その係止クリップ３０に
よって回り止めされて取り付けられる。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、前記中空パネル１を有する車両ボディ全
体が焼き付け塗装される際の外部加熱によって、図５と
図６に示すように、発泡性基材１１が発泡して発泡体１
５となる。The hollow chamber blocking device 10 according to the first embodiment is configured as described above. Therefore, as shown in FIG. 1 and FIG.
After being attached to the hollow chamber 7 of the hollow panel 1 of the vehicle via the mounting holes 6, the foamable base material 11 is foamed by external heating to form a foam 15, so that the hollow chamber 7 is shut off. That is, the inner panel 2 and the outer panel 4 constituting the hollow panel 1 are connected to each other by the flanges 3, 5 thereof.
Before the spot welding is performed, the hollow chamber blocking device 10 is attached to the mounting hole 6 of the inner panel 2 while being prevented from rotating by the retaining clip 30. 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, due to external heating, for example, external heating when the entire vehicle body having the hollow panel 1 is baked and painted, as shown in FIGS. Body 1
It becomes 5.
【００１４】前記発泡性基材１１が発泡する際、その発
泡性基材１１の両壁部は支持プレート２１に接して保持
されることで、前記中空室７の長手方向に対しては発泡
性基材１１の発泡が制限され、中空室７の長手方向に直
交する方向に対しては発泡性基材１１の発泡が効果的に
促進される。また、発泡性基材１１の両壁部は、支持プ
レート２１の多数の連結孔２２に充填されている連結部
１２によって結合されているため、発泡性基材１１が発
泡する際に、その発泡性基材１１の両壁部が支持プレー
ト２１の表面から剥離して垂れ落ちるという不具合が防
止される。When the foamable base material 11 is foamed, both walls of the foamable base material 11 are held in contact with the support plate 21 so that the foamable base material 11 is foamable with respect to the longitudinal direction of the hollow chamber 7. Foaming of the base material 11 is restricted, and foaming of the foamable base material 11 is effectively promoted in a direction perpendicular to the longitudinal direction of the hollow chamber 7. In addition, since both walls of the foamable base material 11 are joined by the connecting portions 12 filled in the plurality of connection holes 22 of the support plate 21, when the foamable base material 11 A problem that both walls of the conductive base material 11 are separated from the surface of the support plate 21 and fall down is prevented.
【００１５】さらに、支持プレート２１の上部の垂落防
止用受縁２３においても発泡性基材１１の上部における
発泡体１５の一部が受け止められて垂れ落ちが防止され
る。このため、前記発泡性基材１１は、支持プレート２
１の全表面を覆った状態で発泡し発泡体１５となり、そ
の発泡体１５の周縁部が中空パネル１の中空室７の内周
壁面に確実に密着する。これによって、少量の発泡性基
材１１の発泡に基づく発泡体１５によって、中空パネル
１の中空室７が確実に遮断される。Further, a part of the foam 15 at the upper portion of the foamable base material 11 is also received at the drop-preventing receiving edge 23 at the upper portion of the support plate 21 to prevent dripping. For this reason, the foamable base material 11 is
The foam 15 is foamed in a state of covering the entire surface of the foam panel 1, and the peripheral portion of the foam 15 securely adheres to the inner peripheral wall surface of the hollow chamber 7 of the hollow panel 1. Thereby, the hollow chamber 7 of the hollow panel 1 is reliably shut off by the foam 15 based on the foaming of the foamable base material 11 in a small amount.
【００１６】前記したように、支持プレート２１の全表
面を覆った状態で発泡性基材１１が発泡し発泡体１５と
なり、中空パネル１の中空室７が遮断される。このた
め、中空パネル１の中空室７内の音波は、中空室遮断具
１０の支持プレート２１に直接衝突することなく発泡体
１５において受け止められて遮断される。前記発泡体１
５の表面は、発泡によって凹凸面をなす。このため、発
泡体の表面の凹凸面に当たった音波は、その発泡体１５
の凹凸面において良好に減衰され、反射音による残音が
軽減される。特に、この実施の形態１において、前記発
泡体１５の表面は連結孔２２に充填された連結部１２が
発泡することによって、当該部分が他の部分よりも大き
く突出して凹凸面をなす。このため、発泡体１５の表面
の凹凸面に当たった音波は、その発泡体１５の凹凸面に
おいてより一層良好に減衰され、反射音による残音がよ
り一層軽減される。As described above, the foamable base material 11 foams to cover the entire surface of the support plate 21 to form a foam 15, and the hollow chamber 7 of the hollow panel 1 is shut off. For this reason, the sound wave in the hollow chamber 7 of the hollow panel 1 is received and blocked by the foam 15 without directly colliding with the support plate 21 of the hollow chamber blocking device 10. The foam 1
The surface of No. 5 forms an uneven surface by foaming. For this reason, the sound wave which hits the uneven surface of the surface of the foam
Satisfactorily attenuated on the concave and convex surfaces, and the residual sound due to the reflected sound is reduced. In particular, in the first embodiment, the surface of the foamed body 15 forms a concave-convex surface by protruding the connection portion 12 filled in the connection hole 22 more greatly than other portions. For this reason, the sound waves that have hit the uneven surface of the foam 15 are more favorably attenuated on the uneven surface of the foam 15, and the residual sound due to the reflected sound is further reduced.
【００１７】次に、前記実施の形態１の中空室遮断具１
０を製造する方法を工程順に説明する。まず、支持プレ
ート２１を成形する工程において、図４に示すように、
耐熱性合成樹脂材の射出成形によって支持プレート２１
が成形される。前記支持プレート２１の成形と同時に、
その支持プレート２１の板面には所要数の連結孔２２が
貫設されるとともに、支持プレート２１の板面には多数
の小孔状の連結孔２２が適宜間隔で配列されて成形され
る。さらに、支持プレート２１の上部には垂落防止用受
縁２３が略水平状に張り出され、支持プレート２１の下
部中央部には、係止クリップ３０が一体成形される。Next, the hollow chamber blocking device 1 of the first embodiment will be described.
The method of manufacturing the “0” will be described in the order of steps. First, in the step of forming the support plate 21, as shown in FIG.
The support plate 21 is formed by injection molding of a heat-resistant synthetic resin material.
Is molded. Simultaneously with the formation of the support plate 21,
A required number of connection holes 22 are formed through the plate surface of the support plate 21, and a large number of small hole-shaped connection holes 22 are formed at appropriate intervals on the plate surface of the support plate 21. Further, a drop-preventing receiving edge 23 extends substantially horizontally above the upper portion of the support plate 21, and a locking clip 30 is formed integrally with a lower central portion of the support plate 21.
【００１８】次に、発泡性基材１１を成形する工程にお
いて、図７に示すように、発泡性基材１１に対応するキ
ャビティ５３を備えた対の成形型５０、５１内に前記支
持プレート２１がセットされる。その後、成形型５０、
５１のキャビティ５３に発泡性材料が射出されること
で、発泡性基材１１が成形される。この発泡性基材１１
の成形と同時に、支持プレート２１の多数の連結孔２２
にも発泡性材料が充填され連結部１２が成形され、これ
によって、中空室遮断具１０が容易に製造される。Next, in the step of molding the foamable base material 11, as shown in FIG. 7, the support plate 21 is placed in a pair of molds 50 and 51 having a cavity 53 corresponding to the foamable base material 11. Is set. Then, the mold 50,
The foamable base material 11 is formed by injecting the foamable material into the cavity 53 of the 51. This foamable base material 11
At the same time as the molding of the
Also, the foaming material is filled in, and the connecting portion 12 is formed, thereby easily manufacturing the hollow chamber blocking device 10.
【００１９】（実施の形態２）次に、この発明の実施の
形態２の中空室遮断具１０を図９と図１０にしたがって
説明する。この実施の形態２の中空室遮断具１０におい
て、支持プレート２１の上部には垂落防止用受縁が設け
られることなく所要形状の平板状に形成され、その下部
には係止クリップ３０が一体に形成されている。また、
支持プレート２１の板面には、実施の形態１と略同様に
して多数の連結孔２２が貫設されている。発泡性基材１
１は、支持プレート２１の両面を覆うようにして設けら
れ、支持プレート２１の周縁部には設けられていない。
さらに、発泡性基材１１の両壁部は、支持プレート２１
の多数の連結孔２２にそれぞれ充填された連結部１２に
よって結合されている。これら連結部１２においても発
泡性材料によって構成されている。(Embodiment 2) Next, a hollow-chamber blocking device 10 according to Embodiment 2 of the present invention will be described with reference to FIGS. In the hollow-chamber blocking device 10 of the second embodiment, the supporting plate 21 is formed in a flat plate of a required shape without a drop-preventing receiving edge at an upper portion thereof, and a locking clip 30 is integrally formed at a lower portion thereof. Is formed. Also,
A large number of connection holes 22 are formed through the plate surface of the support plate 21 in substantially the same manner as in the first embodiment. Foamable substrate 1
1 is provided so as to cover both surfaces of the support plate 21, and is not provided on the periphery of the support plate 21.
Further, both walls of the foamable base material 11 are
Are connected by the connecting portions 12 filled in the plurality of connecting holes 22 respectively. These connecting portions 12 are also made of a foamable material.
【００２０】したがって、この実施の形態２の中空室遮
断具１０においても、実施の形態１と略同様の作用効果
を奏する。すなわち、発泡性基材１１が発泡する際に、
その発泡性基材１１の両壁部が支持プレート２１の表面
から剥離して垂れ落ちるという不具合が防止される。こ
のため、発泡性基材１１は、図１０に示すように、支持
プレート２１の全表面を覆った状態で発泡し発泡体１５
となり、その発泡体１５の周縁部が中空パネル１の中空
室７の内周壁面に確実に密着し、これによって中空パネ
ル１の中空室７が遮断される。Therefore, the hollow-chamber blocking device 10 according to the second embodiment also provides substantially the same operation and effect as the first embodiment. That is, when the foamable base material 11 foams,
The problem that both walls of the foamable base material 11 are separated from the surface of the support plate 21 and fall down is prevented. For this reason, as shown in FIG. 10, the foamable base material 11 foams while covering the entire surface of the support plate 21 to form a foam 15.
The peripheral edge of the foam 15 is securely adhered to the inner peripheral wall surface of the hollow chamber 7 of the hollow panel 1, whereby the hollow chamber 7 of the hollow panel 1 is shut off.
【００２１】また、前記発泡体１５の表面は、実施の形
態１と同様にして連結孔２２に充填された連結部１２が
発泡することによって、当該部分が他の部分よりも大き
く突出して凹凸面をなす。このため、中空パネル１の中
空室７内の音波は、中空室遮断具１０の支持プレート２
１に直接衝突することなく発泡体１５表面の凹凸面にお
いて受け止められて減衰され、反射音による残音が軽減
される。また、この実施の形態２の中空室遮断具１０に
おいても、前記実施の形態１の中空室遮断具１０と同様
にして、支持プレート２１を成形する工程と、発泡性基
材１１を成形する工程の順によって容易に製造される。Further, the surface of the foam 15 is formed such that the connecting portion 12 filled in the connecting hole 22 foams in the same manner as in the first embodiment, so that the portion protrudes larger than the other portions and has an uneven surface. Make For this reason, the sound wave in the hollow chamber 7 of the hollow panel 1 is transmitted to the support plate 2 of the hollow chamber blocking device 10.
The first sound is received and attenuated on the uneven surface of the foam 15 without directly colliding with 1, and the residual sound due to the reflected sound is reduced. Also, in the hollow chamber blocking device 10 according to the second embodiment, similarly to the hollow chamber blocking device 10 according to the first embodiment, a process of forming the support plate 21 and a process of forming the foamable base material 11. It is easily manufactured by the following order.
【００２２】（実施の形態３）次に、この発明の実施の
形態３の中空室遮断具１０を図１１と図１２にしたがっ
て説明する。この実施の形態３の中空室遮断具１０にお
いて、支持プレート２１の上部には垂落防止用受縁が設
けられることなく所要形状の平板状に形成され、その下
部には係止クリップ３０が一体に形成されている。ま
た、支持プレート２１の板面には、所要数の連結孔２２
が貫設されている。発泡性基材１１は、支持プレート２
１の両面を覆うようにして設けられた両壁部１１ａ、１
１ｂによって構成されている。(Embodiment 3) Next, a hollow-chamber blocking device 10 according to a third embodiment of the present invention will be described with reference to FIGS. In the hollow-chamber blocking device 10 according to the third embodiment, the supporting plate 21 is formed in a flat plate of a required shape without a drop-preventing receiving edge, and a locking clip 30 is integrally formed below the supporting plate 21. Is formed. Further, a required number of connection holes 22 are provided on the plate surface of the support plate 21.
Is pierced. The foamable base material 11 includes a support plate 2
1. Both wall portions 11a, 1 provided so as to cover both surfaces of 1
1b.
【００２３】発泡性基材１１の両壁部１１ａ、１１ｂの
うち、一方の壁部１１ａには支持プレート２１の所要数
の連結孔２２に対応する係止孔１４が貫設されている。
また、他方の壁部１１ｂには連結孔２２から係止孔１４
にわたって挿通される連結突起１３が突設され、その連
結突起１３の先端部には割溝によって弾性的に縮開され
て係止孔１４に係合する弾性係止部１３ａが形成されて
いる。すなわち、この実施の形態３においては、発泡性
基材１１の両壁部１１ａ、１１ｂはそれぞれ個別に成形
される。この際、一方の壁部１１ａには所要数の係止孔
１４が貫設され、他方の他方の壁部１１ｂには、発泡性
材料よりなる連結突起１３が一体に突設される。そし
て、発泡性基材１１の両壁部１１ａ、１１ｂがそれぞれ
個別に成形された後、支持プレート２１の両面に組み付
けられる。A locking hole 14 corresponding to a required number of connection holes 22 of the support plate 21 is formed through one of the two walls 11a and 11b of the foamable base material 11.
Further, the other wall portion 11b is formed with the connecting hole 22 through the locking hole 14.
The protrusion 13 is provided with an elastic engaging portion 13a which is elastically contracted by a split groove and engages with the engaging hole 14 at the tip of the connecting protrusion 13. That is, in the third embodiment, both the wall portions 11a and 11b of the foamable base material 11 are individually formed. At this time, a required number of locking holes 14 are provided through one wall 11a, and connecting projections 13 made of a foamable material are integrally provided on the other wall 11b. Then, after both the wall portions 11 a and 11 b of the foamable base material 11 are individually formed, they are assembled on both surfaces of the support plate 21.
【００２４】したがって、この実施の形態３の中空室遮
断具１０においても、実施の形態１及び２と略同様の作
用効果を奏する。すなわち、発泡性基材１１の両壁部１
１ａ、１１ｂが発泡する際に、その発泡性基材１１の両
壁部１１ａ、１１ｂが支持プレート２１の表面から剥離
して垂れ落ちるという不具合が防止される。このため、
発泡性基材１１の両壁部１１ａ、１１ｂは、図１２に示
すように、支持プレート２１の全表面を覆った状態で発
泡し発泡体１５となり、その発泡体１５の周縁部が中空
パネル１の中空室７の内周壁面に確実に密着し、これに
よって中空パネル１の中空室７が遮断される。Therefore, the hollow-chamber shutoff device 10 of the third embodiment also has substantially the same operation and effects as those of the first and second embodiments. That is, both wall portions 1 of the foamable base material 11
When the foams 1a and 11b are foamed, the problem that both walls 11a and 11b of the foamable base material 11 are separated from the surface of the support plate 21 and fall down is prevented. For this reason,
As shown in FIG. 12, both walls 11 a and 11 b of the foamable base material 11 are foamed while covering the entire surface of the support plate 21 to form a foam 15, and the periphery of the foam 15 is a hollow panel 1. The hollow chamber 7 of the hollow panel 1 is shut off without fail in close contact with the inner peripheral wall surface of the hollow chamber 7.
【００２５】また、前記発泡体１５の表面は、連結孔２
２に差し込まれた連結突起１３が発泡することによっ
て、当該部分が他の部分よりも大きく突出して凹凸面を
なす。このため、中空パネル１の中空室７内の音波は、
中空室遮断具１０の支持プレート２１に直接衝突するこ
となく発泡体１５表面の凹凸面において受け止められて
減衰され、反射音による残音が軽減される。The surface of the foam 15 is provided with a connecting hole 2
Due to the foaming of the connection protrusion 13 inserted in 2, the portion protrudes more than the other portions to form an uneven surface. For this reason, the sound wave in the hollow chamber 7 of the hollow panel 1 is
Without directly colliding with the support plate 21 of the hollow chamber blocker 10, it is received and attenuated on the uneven surface of the foam 15, and the residual sound due to the reflected sound is reduced.
【００２６】なお、前記実施の形態１〜３においては、
支持プレート２１が耐熱性合成樹脂材によって成形され
た場合を例示したが、これに限定するものではなく、鉄
板等の金属板によって形成してもよい。また、前記実施
の形態１〜３においては、中空構造物が車両のピラー、
ロッカパネル、ルーフパネル等の中空パネル１である場
合を例示したが、これに限るものではなく、車両の中空
パネル以外であってもよい。In the first to third embodiments,
Although the case where the support plate 21 is formed of a heat-resistant synthetic resin material has been exemplified, the present invention is not limited to this, and the support plate 21 may be formed of a metal plate such as an iron plate. In the first to third embodiments, the hollow structure is a pillar of a vehicle,
Although the case of the hollow panel 1 such as a rocker panel or a roof panel has been described as an example, the present invention is not limited to this, and may be other than a hollow panel of a vehicle.
【００２７】[0027]
【発明の効果】以上述べたように、この発明によれば、
発泡性基材が支持プレートの全表面を覆った状態で発泡
し発泡体となることで、中空室を確実に遮断することが
できる。さらに、中空室内の音波は、支持プレートに直
接衝突することなく発泡体の凹凸面において減衰させる
ことができ、反射による残音を軽減することができる。As described above, according to the present invention,
When the foamable base material foams while covering the entire surface of the support plate to form a foam, the hollow chamber can be reliably shut off. Furthermore, the sound waves in the hollow chamber can be attenuated on the uneven surface of the foam without directly colliding with the support plate, and the residual sound due to reflection can be reduced.
【図１】この発明の実施の形態１において、車両の中空
パネルの中空室に中空室遮断具を取り付けた状態を示す
横断面図である。FIG. 1 is a cross-sectional view showing a state in which a hollow chamber blocking member is attached to a hollow chamber of a hollow panel of a vehicle according to Embodiment 1 of the present invention.
【図２】同じく図１のＩＩ−ＩＩ線に基づく縦断面図で
ある。FIG. 2 is a longitudinal sectional view based on the line II-II in FIG.
【図３】同じく中空室遮断具を示す正面図である。FIG. 3 is a front view showing the same hollow chamber blocking device.
【図４】同じく支持プレートを示す正面図である。FIG. 4 is a front view showing the support plate.
【図５】同じく発泡性基材が発泡して発泡体となった状
態を示す横断面図である。FIG. 5 is a cross-sectional view showing a state where the foamable base material is foamed to form a foam.
【図６】同じく図５のＶＩ−ＶＩ線に基づく縦断面図で
ある。FIG. 6 is a vertical sectional view based on the line VI-VI of FIG. 5;
【図７】この発明の実施の形態１の中空室遮断具の支持
プレートを成形型内にセットした状態を示す説明図であ
る。FIG. 7 is an explanatory view showing a state in which the support plate of the hollow-chamber blocking device according to Embodiment 1 of the present invention is set in a molding die.
【図８】同じく発泡性基材を射出成形する状態を示す説
明図である。FIG. 8 is an explanatory view showing a state in which a foamable base material is injection-molded.
【図９】この発明の実施の形態２の中空室遮断具が中空
パネルの中空室に取り付けられた状態を示す縦断面図で
ある。FIG. 9 is a longitudinal sectional view showing a state where the hollow-room blocking device according to Embodiment 2 of the present invention is attached to the hollow chamber of the hollow panel.
【図１０】同じく発泡性基材が発泡して発泡体となった
状態を示す縦断面図である。FIG. 10 is a longitudinal sectional view showing a state where the foamable base material is foamed to form a foam.
【図１１】この発明の実施の形態３の中空室遮断具が中
空パネルの中空室に取り付けられた状態を示す縦断面図
である。FIG. 11 is a longitudinal sectional view showing a state in which the hollow-chamber blocking device according to Embodiment 3 of the present invention is attached to a hollow chamber of a hollow panel.
【図１２】同じく発泡性基材が発泡して発泡体となった
状態を示す縦断面図である。FIG. 12 is a longitudinal sectional view showing a state where the foamable base material is foamed to form a foam.
【図１３】従来の中空室遮断具の一対の支持プレートと
発泡性基材とを分離した状態を示す斜示図である。FIG. 13 is a perspective view showing a state where a pair of support plates and a foamable base material of a conventional hollow chamber blocking device are separated.
【図１４】同じく車両の中空パネルの中空室に中空室遮
断具を取り付けて発泡性基材を発泡した状態を示す縦断
面図である。FIG. 14 is a longitudinal sectional view showing a state in which a hollow chamber blocking member is attached to a hollow chamber of a hollow panel of a vehicle to expand a foamable base material.
１ 中空パネル（中空構造物） ２ インナパネル ４ アウタパネル ６ 取付孔 ７ 中空室 １０ 中空室遮断具 １１ 発泡性基材 １１ａ 両壁部 １２ 連結部 ２１ 支持プレート ２２ 連結孔 ２３ 垂落防止用受縁 ３０ 係止クリップ DESCRIPTION OF SYMBOLS 1 Hollow panel (hollow structure) 2 Inner panel 4 Outer panel 6 Mounting hole 7 Hollow chamber 10 Hollow chamber shut-off tool 11 Foamable base material 11a Both wall parts 12 Connecting part 21 Support plate 22 Connecting hole 23 Falling prevention receiving edge 30 Stop clip
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｇ１０Ｋ 11/16 Ｇ１０Ｋ 11/16 Ｆ ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code FI G10K 11/16 G10K 11/16 F
Claims (3)
持プレートと、その支持プレートに支持されかつ外部加
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
する発泡性基材と、を備えた中空構造物における中空室
遮断具であって、 前記支持プレートは前記中空室の長手方向に直交する平
板状に形成されるとともに、その板面には所要数の連結
孔が貫設される一方、 前記発泡性基材は、前記支持プレートの両面を覆うよう
にして設けられた両壁部を備えるとともに、その両壁部
は前記支持プレートの所要数の連結孔によって連結され
ている中空構造物における中空室遮断具。1. A support plate attached to a hollow chamber of a hollow structure, and a foamable base material supported by the support plate and foamed by external heating to form a foam to block the hollow chamber. A hollow chamber blocking member in the hollow structure, wherein the support plate is formed in a flat plate shape orthogonal to a longitudinal direction of the hollow chamber, and a required number of connection holes are formed through the plate surface. A hollow structure in which the foamable base material includes both walls provided so as to cover both surfaces of the support plate, and both walls are connected by a required number of connection holes of the support plate. In the hollow chamber.
空室遮断具において、支持プレートの上部には発泡性基
材が発泡する際の垂れ落ちを防止するための垂落防止用
受縁が張り出されている中空構造物における中空室遮断
具。2. The hanging member for a hollow structure in a hollow structure according to claim 1, wherein a supporting edge for preventing dripping when the foamable base material foams is attached to an upper portion of the support plate. Hollow chamber blocker in the hollow structure being exposed.
空室遮断具を製造する方法であって、中空構造物の中空
室の長手方向に直交する平板状をなしその板面に所要数
の連結孔が貫設された支持プレートを形成する工程と、 発泡性基材に対応するキャビティを有する成形型内に前
記支持プレートをセットした後、前記キャビティに発泡
性材料を射出することで前記支持プレートの両面を覆う
両壁部を備えた発泡性基材を成形すると同時に、前記支
持プレートの所要数の連結孔にも前記発泡性材料を充填
して連結部を成形する成形工程と、を備えている中空構
造物における中空室遮断具の製造方法。3. The method for producing a hollow-chamber shut-off device in a hollow structure according to claim 1, wherein the hollow structure of the hollow structure has a flat shape perpendicular to a longitudinal direction of the hollow space, and a required number of the flat surfaces are provided. Forming a support plate having connection holes formed therein, and setting the support plate in a mold having a cavity corresponding to a foamable base material, and then injecting a foamable material into the cavity to support the support plate. Forming a foamable base material having both walls covering both sides of the plate, and simultaneously forming a connection portion by filling the foamable material into the required number of connection holes of the support plate. Of manufacturing a hollow chamber shut-off device in a hollow structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06333398A JP3373424B2 (en) | 1998-03-13 | 1998-03-13 | Hollow blocker for hollow structure and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06333398A JP3373424B2 (en) | 1998-03-13 | 1998-03-13 | Hollow blocker for hollow structure and method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11254571A true JPH11254571A (en) | 1999-09-21 |
| JP3373424B2 JP3373424B2 (en) | 2003-02-04 |
Family
ID=13226225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06333398A Expired - Fee Related JP3373424B2 (en) | 1998-03-13 | 1998-03-13 | Hollow blocker for hollow structure and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3373424B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002362412A (en) * | 2001-06-01 | 2002-12-18 | Neoex Lab Inc | Reinforcement structure of hollow panel and reinforcement tool therefor |
| WO2005037608A1 (en) * | 2003-10-18 | 2005-04-28 | Sika Technology Ag | Acoustic baffle |
| WO2007103697A1 (en) * | 2006-03-09 | 2007-09-13 | Henkel Japan Ltd. | Fastenable member |
| US8087916B2 (en) | 2005-12-15 | 2012-01-03 | Cemedine Henkel Co., Ltd. | Holding jig for a foamable material |
| WO2014176477A1 (en) * | 2013-04-26 | 2014-10-30 | Zephyros, Inc. | Activatable material and carrier attachment |
| CN107690403A (en) * | 2015-06-09 | 2018-02-13 | 宝马股份公司 | Motor vehicle |
-
1998
- 1998-03-13 JP JP06333398A patent/JP3373424B2/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002362412A (en) * | 2001-06-01 | 2002-12-18 | Neoex Lab Inc | Reinforcement structure of hollow panel and reinforcement tool therefor |
| WO2005037608A1 (en) * | 2003-10-18 | 2005-04-28 | Sika Technology Ag | Acoustic baffle |
| 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 |
| WO2007103697A1 (en) * | 2006-03-09 | 2007-09-13 | Henkel Japan Ltd. | Fastenable member |
| WO2014176477A1 (en) * | 2013-04-26 | 2014-10-30 | Zephyros, Inc. | Activatable material and carrier attachment |
| CN105358301A (en) * | 2013-04-26 | 2016-02-24 | 泽费罗斯股份有限公司 | Activatable material and carrier attachment |
| CN105358301B (en) * | 2013-04-26 | 2017-05-03 | 泽费罗斯股份有限公司 | Activatable material and carrier attachment |
| CN107690403A (en) * | 2015-06-09 | 2018-02-13 | 宝马股份公司 | Motor vehicle |
| US10604193B2 (en) | 2015-06-09 | 2020-03-31 | Bayerische Motoren Werke Aktiengesellschaft | Motor vehicle |
| CN107690403B (en) * | 2015-06-09 | 2021-10-01 | 宝马股份公司 | Motor vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3373424B2 (en) | 2003-02-04 |
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