JP2004150040A - Foaming material filling structure of wall panel - Google Patents

Foaming material filling structure of wall panel Download PDF

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Publication number
JP2004150040A
JP2004150040A JP2002313412A JP2002313412A JP2004150040A JP 2004150040 A JP2004150040 A JP 2004150040A JP 2002313412 A JP2002313412 A JP 2002313412A JP 2002313412 A JP2002313412 A JP 2002313412A JP 2004150040 A JP2004150040 A JP 2004150040A
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JP
Japan
Prior art keywords
baffle plate
back sheet
sheet material
side frame
frame
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.)
Withdrawn
Application number
JP2002313412A
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Japanese (ja)
Inventor
Shigeaki Shitsu
成章 四津
Toshihiro Miyazaki
敏博 宮崎
Toshinao Tsutsui
利尚 筒井
Masahiro Asaji
正博 浅地
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP2002313412A priority Critical patent/JP2004150040A/en
Publication of JP2004150040A publication Critical patent/JP2004150040A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To respectively prevent leakage of a foaming material from a back side frame material and unfilling of the foaming material even if a usual soft urethane is not stuck on the back side frame material, prevent the occurrence of creases of a back sheet material and, at the same time, to facilitate trimming of the back sheet material. <P>SOLUTION: The back sheet material is mounted on the back of a panel frame 3 for forming four rounds of a face plate 2 in a wall panel 1, and an inside space 5 surrounded by the face plate 2, the panel frame 3 and the back sheet material is filled with the foaming material to foamingly harden. A foaming material injection hole 6 is perforated through a front side frame material 3a in a pair of before and after frame materials 3a and 3b opposed to each other of the panel frame 3, and the height of the back side frame material 3b opposed to the front side frame material 3a is lower than the front side frame material 3a to form a vent hole between the back side frame material 3b and the back sheet material. A baffle board 8 is located at this side F of the back side frame material 3b and, at the same time, clearance between the baffle board 8 and the back sheet material is set larger than the vent hole. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、壁パネルの発泡材充填構造に関するものである。
【0002】
【従来の技術】
従来、建物の壁パネルを製造するにあたって、方形のパネルの4周を形成する剛性の枠材からなるパネル枠の相対する一対の枠材間に桟材を取り付け、各桟材間のそれぞれの空間に発泡材を充填する方法が知られている(例えば、特許文献1参照)。
【0003】
【特許文献1】
特開平10−252214号公報
【0004】
【発明が解決しようとする課題】
ところが特許文献1に見られる従来例では、発泡成形する際に発生するガスを抜くことができず、発泡材の未充填が発生したり、高い発泡圧が枠材にかかって発泡材が漏出してバリが発生したりするという問題を有している。
【0005】
そこで本出願人は、ガス抜きを行なう方法として、パネル枠の相対する前後一対の枠材のうちの前側枠材に発泡材注入孔を穿設し、前側枠材と相対する奥側枠材の高さを前側枠材よりも低くして奥側枠材とバックシート材との間にガス抜き用隙間を形成する方法を既に特願2002−73933号において出願している。この出願においては、奥側枠材に軟質ウレタンを貼り付け、ガスは抜けるようにし、発泡材は抜けないようにしている。
【0006】
ところが上記特願2002−73933号においては、奥側枠材軟質ウレタンを貼り付けているため、いわゆるクローズド注入方法で発泡材を注入する際に、発泡過程において発生したガスおよび内部空間内の残留空気が軟質ウレタンを介して外部へ噴出するが、このときの発泡圧によって軟質ウレタンが外側にはみ出す場合があり、この場合、バックシート材をトリミングするときに、はみ出した軟質ウレタンによってトリミングするのが困難になるという課題がある。
【0007】
本発明は、上記の従来例の問題点に鑑みて発明したものであって、その目的とするところは、従来のように奥側枠材に軟質ウレタンを貼り付けなくても、奥側枠材からの発泡材の漏れ及び発泡材の未充填をそれぞれ防止でき、しかもバックシート材の皺の発生を防止できると共にバックシート材のトリミングを行ないやすくした壁パネルの発泡材充填構造を提供することにある。
【0008】
【課題を解決するための手段】
上記課題を解決するために本発明にあっては、面板2の4周を形成するパネル枠3の背面にバックシート材4を取り付け、面板2とパネル枠3とバックシート材4とで囲まれた内部空間5に発泡材を注入して発泡固化させてなる壁パネル1において、パネル枠3の相対する前後一対の枠材3a,3bのうち、前側枠材3aに発泡材注入孔6を穿設し、前側枠材3aと相対する奥側枠材3bの高さH2を前側枠材3aよりも低くして奥側枠材3bとバックシート材4との間にガス抜き用隙間7を形成し、奥側枠材3bの手前側Fに邪魔板8を設けると共に邪魔板8とバックシート材4間のクリアランスSをガス抜き用隙間7よりも大きく設定したことを特徴としており、このように構成することで、発泡時には邪魔板8が発泡材9の流動抵抗となって、奥側枠材3bにかかる発泡圧が邪魔板8で低減されるため、奥側枠材3bに高い発泡圧がかかるのを防いで発泡材9の漏れ防止を図ることができる。しかも、邪魔板8とバックシート材4との間のクリアランスSをガス抜き用隙間7よりも大きく設定しているため、注入時における邪魔板8から奥側枠材3bに至る発泡材9の流通を阻害しないようにでき、これにより邪魔板8と奥側枠材3b間の奥部空間5b内においても発泡材9の未充填が発生することがなくなる。さらに邪魔板8とバックシート材4との間にクリアランスSが確保され、且つ奥側枠材3bとバックシート材4との間にはガス抜き用隙間7が確保されるため、発泡成形するときに発泡材9がバックシート材4の内面をスムーズに滑って動き易くなり、バックシート材4の皺の発生を抑えることができると共に、従来のような軟質ウレタンを奥側枠材3bに貼着する必要がなくなるので、軟質ウレタンのはみ出しもなくなり、バックシート材4のトリミングが行ないやすくなる。
【0009】
また上記邪魔板8の高さH3が中央部8aよりも両端部8b,8bが低くなるように高さを変化させるのが好ましく、発泡圧が最も高くなる邪魔板8の中央部8aを高くし、発泡圧が最も低くなる邪魔板8の両端部8b,8bを中央部8aよりも低くすることによって、邪魔板8の各部位の発泡圧をほぼ均一にできるので、発泡材9を内部空間5全体にわたってより均一に充填できるようになる。
【0010】
また上記邪魔板8とバックシート材4間のクリアランスSを1.0mm〜4.5mmとし、且つ邪魔板8と奥側枠材3b間の距離Dを邪魔板8の高さH3の2〜5倍とするのが好ましく、この場合、邪魔板8と奥側枠材3bとの間の奥部空間5bにおいて発泡材9の未充填を防止できると共に、邪魔板8による流動抵抗としての機能が十分に得られ、さらに奥側枠材3bに高い発泡圧がかかるのを防止できるようになる。
【0011】
【発明の実施の形態】
以下、本発明を添付図面に示す実施形態に基づいて説明する。
【0012】
本実施形態の壁パネル1は、図1〜図5に示すように、面板2と、面板2の4周を形成する剛性の枠材3a〜3cからなるパネル枠3と、パネル枠3内に設けられる邪魔板8と、パネル枠3の背面に貼着されるバックシート材4と、面板2とパネル枠3とバックシート材4とで囲まれた内部空間5に注入されて発泡固化する発泡材9とで構成されている。また図2に示すように、壁パネル1は縦長の長方形状に形成され、その長手方向を鉛直に向けて、上端が天井部となり、下端が床部となるように施工されるものである。
【0013】
面板2とパネル枠3は、例えばFRP(ガラス繊維強化プラスチック)で一体成形されている。バックシート材4は、弾力性を有する材料が好ましく、本例では不織布が用いられる。もちろん、面板2、バックシート材4、パネル枠3の材質はこれに限定されるものではない。
【0014】
パネル枠3は、前側枠材3aと、前側枠材3aと相対する奥側枠材3bと、両サイドに配置される一対の両側枠材3c,3cとで構成される。奥側枠材3bを除く他の3つの枠材(前側枠材3a、両側枠材3c)はそれぞれ同じ高さ寸法とされ、バックシート材4に対して気密に固着される。これにより壁パネル1の内部空間5の高さは、前側枠材3a及び両側枠材3cの高さ寸法で定められる。
【0015】
前側枠材3aの中央部8aには、図1に示すように、発泡材9を内部空間5に注入するための発泡材注入孔6が穿設されている。発泡材9としては、発泡ウレタン、発泡スチロ−ルなど適当な発泡材が用いられるが、好ましくは断熱性のあるものが使用される。
【0016】
一方、前側枠材3aと相対する奥側枠材3bの高さH2は、前側枠材3aの高さH1(図5(b))よりも低く形成されており、これにより奥側枠材3bとバックシート材4との間にはガス抜き用隙間7(図4)が形成されている。このガス抜き用隙間7は例えば1mm〜5mm程度とされる。
【0017】
さらに、奥側枠材3bの手前側Fには邪魔板8が設けられている。この邪魔板8は、図3に示すように、奥側枠材3bと平行に且つ奥側枠材3bの幅方向全長に亘って延びている。本例では、邪魔板8の高さH3(図4)はその全長にわたって同じ高さ寸法とされている。邪魔板8は、発泡時の発泡材9の流動を一旦止めるための流動抵抗部として機能し、奥側枠材3bに高い発泡圧がかかるのを防止する働きをする。また邪魔板8の高さH3は、図4に示すように、奥側枠材3bの高さH2よりも低く設定されており、邪魔板8とバックシート材4間のクリアランスSはガス抜き用隙間7よりも大きくなっている。これにより前側枠材3aと邪魔板8間の前部空間5aに供給される発泡材9が、邪魔板8とバックシート材4間の間を通って邪魔板8と奥側枠材3b間の奥部空間5bに流入できる構造となっている。
【0018】
ここで図4の例では、邪魔板8とバックシート材4間のクリアランスSを1.0mm〜4.5mmとし、邪魔板8と奥側枠材3bとの距離Dを邪魔板8の高さH3の2〜5倍(例えば100mm)としている。ちなみに、邪魔板8とバックシート材4間のクリアランスSが1.0mm未満の場合は、クリアランスSが小さすぎて邪魔板8の奥部空間5bにおいて発泡材9の未充填が発生しやすくなる。またクリアランスSが4.5mmを越えると、クリアランスSが大きすぎて、邪魔板8による流動抵抗としての機能が得られなくなる。さらに邪魔板8と奥側枠材3b間の距離Dが邪魔板8の高さH3の2倍よりも短い場合は、奥側枠材3bに高い発泡圧がかかり、発泡材9が漏れやすくなる。そこでクリアランスS及び距離Dを上記数値内に設定することで、奥側枠材3bからの発泡材9の漏れ及び発泡材9の未充填を防止できる構造となる。なお邪魔板8は面板2と一体成形される場合に限らず、面板2と別体として接着等で固定することも可能である。
【0019】
さらに、奥側枠材3bの下側には、奥側枠材3bよりも高さの低い床載置部10aが設けられており、奥側枠材3bから漏れた発泡材9を奥側枠材3bと床載置部10aとの間に受け入れる構造となっている。なお、前側枠材3aの上側には壁パネル1の上端を天井部に固定するためのフランジ部10b(図5(b))が突設され、両側枠材3c,3cの外側にはそれぞれ、隣接する壁パネル同士を連結するための連結部10c(図5(a))が突設されている。
【0020】
次に、壁パネル1の内部空間5に発泡材9を充填するにあたっては、先ず図5(a)に示すように、上プレス盤11と下プレス盤12との間に面板2を下にし、バックシート材4を上にして、プレスした状態で、パネル枠3の適当な位置に設けられた発泡材注入孔6から発泡材注入ノズル(図示せず)を挿入して液状の発泡材9を内部空間5の中央部に向けて供給する(図5(b)の状態)。この液状の発泡材9は化学反応により白濁してクリーム状となった後に細かい気泡が発生して発泡を開始し、所定時間(ライジングタイム)後に内部空間5内に充満して硬化することで発泡が完了する。その際、ガス抜き用隙間7によって発泡過程において発生したガスおよび内部空間5内の残留空気が外部に放出されるので、発泡材9の未充填をなくすことができる。
【0021】
ここで、奥側枠材3bの手前側Fには奥側枠材3bよりも低い邪魔板8が設けられているので、発泡時には邪魔板8が発泡材9の流動抵抗となって、奥側枠材3bにかかる発泡圧が邪魔板8で低減されるため、奥側枠材3bに高い発泡圧がかかるのを防止でき、奥側枠材3bのガス抜き用隙間7から発泡材9が漏出するのを防止できるようになる。しかも、邪魔板8の高さH3を奥側枠材3bよりも低くして邪魔板8とバックシート材4との間のクリアランスSをガス抜き用隙間7よりも大きくしたので、注入時における邪魔板8から奥側枠材3bに至る発泡材9の流通を阻害しないようにでき、これにより邪魔板8の奥部空間5b内においても発泡材9の未充填が発生することがなくなり、結果、奥部空間5bを含む内部空間5の全体に行き渡るように発泡材9を充填できることとなり、所望とされる良質な発泡成形品を得ることができる。
【0022】
しかも、奥側枠材3bの手前側Fに邪魔板8を突設させるだけでよいので、面板2の形状が複雑とならず、そのうえ邪魔板8は壁パネル1内部を補強し、歪みが生じるのを防ぐ役割をも果すので、発泡充填時の圧力及び組立後の使用時の荷重に耐えることができる優れた強度を有するものとすることができる。
【0023】
そのうえ、邪魔板8とバックシート材4との間にはクリアランスSが確保され、且つ奥側枠材3bとバックシート材4との間にはガス抜き用隙間7が確保されているため、発泡成形するときに発泡材9がバックシート材4の内面をスムーズに滑って動き易くなり、弾力性のあるバックシート材4の皺の発生を抑えることができる。またバリ防止に加えて、従来のような軟質ウレタンを奥側枠材3bに貼着する必要がなくなるので、軟質ウレタンのはみ出しもなくなり、従来と比較してバックシート材4のトリミングが行ないやすくなるという利点もある。
【0024】
図6は邪魔板8の他の実施形態であり、邪魔板8の高さH3を中央部8aよりも両端部8b,8bが低くなるように高さを変化させた場合を示している。他の構成は前記実施形態と同様である。ちなみに、発泡材9は内部空間5の中央部から発泡していくため、邪魔板8の高さH3を中央部8aと両端部8b,8bとで同じ高さにした場合、邪魔板8の中央部8aでの発泡圧が最も大きく、且つ両端部8b,8bの発泡圧は最も小さくなり、このため邪魔板8の各部位を通過する発泡材9の量にバラツキが発生して、邪魔板8の奥部空間5b内において発泡材9の未充填が生じる可能性がある。そこで、本例では、発泡圧が最も高くなる邪魔板8の中央部8aの高さH3を最も高くし、発泡圧が最も低くなる邪魔板8の両端部8b,8bの高さH4を中央部8aよりも低くしたことによって、中央部クリアランスS1が端部クリアランスS2よりも小さくなって、邪魔板8の各部位の発泡圧をほぼ均一にでき、これにより、邪魔板8の各部位を通過する発泡材9の量をほぼ均一にできるので、邪魔板8の奥部空間5b内において発泡材9の未充填を確実に防止でき、結果、発泡材9を内部空間5全体にわたってより均一に充填できるものである。
【0025】
なお前記実施形態では、壁パネル1は長方形状に形成されているが、場合によっては正方形であってもよい。また、図1の例では、奥側枠材3bの手前に1つの邪魔板8を設けているが、この邪魔板8の更に手前に別の邪魔板(図示せず)を設けて、複数の邪魔板8を備えた構造とすることも可能である。
【0026】
【発明の効果】
上述のように請求項1記載の発明にあっては、面板の4周を形成するパネル枠の背面にバックシート材を取り付け、面板とパネル枠とバックシート材とで囲まれた内部空間に発泡材を注入して発泡固化させてなる壁パネルにおいて、パネル枠の相対する前後一対の枠材のうち、前側枠材に発泡材注入孔を穿設し、前側枠材と相対する奥側枠材の高さを前側枠材よりも低くして奥側枠材とバックシート材との間にガス抜き用隙間を形成し、奥側枠材の手前側に邪魔板を設けると共に邪魔板とバックシート材間のクリアランスをガス抜き用隙間よりも大きく設定したので、発泡時には邪魔板が発泡材の流動抵抗となって、奥側枠材にかかる発泡圧が邪魔板で低減されるため、奥側枠材に高い発泡圧がかかるのを防いで発泡材の漏れ防止を図ることができる。しかも、邪魔板とバックシート材との間のクリアランスをガス抜き用隙間よりも大きくしているため、邪魔板の高さが奥側枠材よりも低くなり、注入時における邪魔板から奥側枠材に至る発泡材の流通を阻害しないようにでき、これにより邪魔板と奥側枠材間の奥部空間内においても発泡材の未充填が発生することがなくなり、結果、奥部空間を含む内部空間の全体に行き渡るように発泡材を充填できることとなり、所望とされる良質な発泡成形品を得ることができる。また、奥側枠材の手前に邪魔板を突設させるだけでよいので、面板の形状が複雑とならず、そのうえ邪魔板は壁パネル内部を補強し、歪み防止に役立ち、さらに邪魔板とバックシート材との間にクリアランスが確保され、且つ奥側枠材とバックシート材との間にはガス抜き用隙間が確保されるため、発泡成形するときに発泡材がバックシート材の内面をスムーズに滑って動き易くなり、バックシート材の皺の発生を抑えることができると共に、従来のような軟質ウレタンを奥側枠材に貼着する必要がなくなるので、軟質ウレタンのはみ出しもなくなり、バックシート材のトリミングが容易となるものである。
【0027】
また請求項2記載の発明は、請求項1記載の効果に加えて、邪魔板の高さが中央部よりも両端部が低くなるように高さを変化させたので、つまり、発泡圧が最も高くなる邪魔板の中央部を高くし、発泡圧が最も低くなる邪魔板の両端部を中央部よりも低くすることで、邪魔板の各部位の発泡圧をほぼ均一にでき、これにより、邪魔板の各部位を通過する発泡材の量をほぼ均一にできるので、邪魔板と奥側枠材間の奥部空間内において発泡材の未充填を確実に防止でき、結果、発泡材を内部空間全体にわたってより均一に充填できるものである。
【0028】
また請求項3記載の発明は、請求項1又は請求項2記載の効果に加えて、邪魔板とバックシート材間のクリアランスを1.0mm〜4.5mmとし、且つ邪魔板と奥側枠材間の距離を邪魔板の高さの2〜5倍としたので、邪魔板と奥側枠材との間の奥部空間において発泡材の未充填を防止できると共に、邪魔板による流動抵抗としての機能が十分に得られ、さらに奥側枠材に高い発泡圧がかかるのを防止できるものである。
【図面の簡単な説明】
【図1】本発明の実施形態の一例を示す面板及びパネル枠の正面図である。
【図2】同上の壁パネルの正面図である。
【図3】同上の邪魔板付近の斜視図である。
【図4】図2のA−A線断面図である。
【図5】(a)は発泡材注入前の説明図、(b)は発泡材注入後の説明図である。
【図6】本発明の他の実施形態の断面図である。
【符号の説明】
1 壁パネル
2 面板
3 パネル枠
3a 前側枠材
3b 奥側枠材
4 バックシート材
5 内部空間
5b 奥部空間
6 発泡材注入孔
7 ガス抜き用隙間
8 邪魔板
8a 中央部
8b 両端部
D 邪魔板と奥側枠材間の距離
H1 前側枠材の高さ
H2 奥側枠材の高さ
H3 邪魔板の高さ
S 邪魔板のクリアランス
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a foam filling structure for wall panels.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in manufacturing a wall panel of a building, crosspieces are attached between a pair of opposite frame materials of a panel frame made of a rigid frame material that forms four rounds of a rectangular panel, and each space between the crosspieces is provided. There is known a method of filling a foam with a foam material (for example, see Patent Document 1).
[0003]
[Patent Document 1]
JP-A-10-252214
[Problems to be solved by the invention]
However, in the conventional example shown in Patent Literature 1, gas generated during foam molding cannot be removed, and unfilled foam material occurs, or foaming material leaks due to high foaming pressure applied to the frame material. Burrs may occur.
[0005]
Therefore, as a method of degassing, the present applicant drills a foam material injection hole in the front frame material of the pair of front and rear frame materials facing the panel frame, and forms a back frame material opposed to the front frame material. Japanese Patent Application No. 2002-73933 has already filed a method of forming a degassing gap between the back frame material and the back frame material by making the height lower than the front frame material. In this application, soft urethane is stuck to the back side frame material so that gas escapes and foam material does not escape.
[0006]
However, in the above-mentioned Japanese Patent Application No. 2002-73933, since the back side frame material soft urethane is adhered, when the foaming material is injected by a so-called closed injection method, gas generated in the foaming process and residual air in the internal space are generated. Is ejected to the outside through the soft urethane, but the soft urethane may protrude outside due to the foaming pressure at this time, and in this case, when trimming the back sheet material, it is difficult to trim by the protruding soft urethane. There is a problem that becomes.
[0007]
The present invention has been made in view of the problems of the above-described conventional example, and an object of the present invention is to provide a back frame material without attaching a soft urethane to a back frame material as in the related art. To provide a foam material filling structure for a wall panel, which can prevent leakage of foam material from the air and unfilling of the foam material, and can also prevent generation of wrinkles in the back sheet material and facilitate trimming of the back sheet material. is there.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, in the present invention, a back sheet material 4 is attached to the back of a panel frame 3 forming four circumferences of the face plate 2, and is surrounded by the face plate 2, the panel frame 3 and the back sheet material 4. In the wall panel 1 formed by injecting a foam material into the inner space 5 and solidifying the foam, a foam material injection hole 6 is formed in the front frame material 3a of the pair of front and rear frame materials 3a and 3b opposed to the panel frame 3. The height H2 of the rear frame member 3b opposed to the front frame member 3a is set lower than the front frame member 3a to form a degassing gap 7 between the rear frame member 3b and the back sheet member 4. Further, the baffle plate 8 is provided on the front side F of the back side frame member 3b, and the clearance S between the baffle plate 8 and the back sheet member 4 is set to be larger than the gas release gap 7. With this configuration, the baffle plate 8 is capable of reducing the flow resistance of the foam material 9 during foaming. It, since the foaming pressure exerted in the back side frame member 3b is reduced by baffle plates 8, it is possible to prevent leaked prevent foaming material 9 with high foaming pressure on the back side frame member 3b from being applied. Moreover, since the clearance S between the baffle plate 8 and the back sheet material 4 is set to be larger than the degassing gap 7, the flow of the foam material 9 from the baffle plate 8 to the back side frame member 3b during injection is performed. Can be prevented from being hindered, whereby the unfilled foam material 9 does not occur even in the inner space 5b between the baffle plate 8 and the inner frame member 3b. Further, a clearance S is secured between the baffle plate 8 and the back sheet material 4, and a gas venting gap 7 is secured between the back side frame material 3b and the back sheet material 4. In addition, the foam material 9 smoothly slides on the inner surface of the back sheet material 4 to be easily moved, thereby suppressing wrinkles of the back sheet material 4 and sticking a conventional soft urethane to the back side frame material 3b. Since there is no need to perform this, the protrusion of the soft urethane is also eliminated, and the trimming of the back sheet material 4 is facilitated.
[0009]
Preferably, the height H3 of the baffle plate 8 is changed so that both ends 8b, 8b are lower than the center portion 8a, and the height of the center portion 8a of the baffle plate 8 at which the foaming pressure is highest is increased. Since the bubbling pressure at each part of the baffle plate 8 can be made substantially uniform by making the both end portions 8b, 8b of the baffle plate 8 having the lowest foaming pressure lower than the central portion 8a, the foam material 9 can be removed from the internal space 5a. More uniform filling throughout.
[0010]
The clearance S between the baffle plate 8 and the back sheet material 4 is set to 1.0 mm to 4.5 mm, and the distance D between the baffle plate 8 and the back side frame member 3b is set to 2 to 5 times the height H3 of the baffle plate 8. In this case, it is possible to prevent the foam material 9 from being unfilled in the deep space 5b between the baffle plate 8 and the back side frame member 3b, and the function of the baffle plate 8 as a flow resistance is sufficient. And a high foaming pressure can be prevented from being applied to the back side frame member 3b.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.
[0012]
As shown in FIGS. 1 to 5, the wall panel 1 of the present embodiment includes a face plate 2, a panel frame 3 including rigid frame members 3 a to 3 c forming four circumferences of the face plate 2, and a panel frame 3. A foam which is injected into an internal space 5 surrounded by the baffle plate 8 provided, the back sheet material 4 stuck on the back surface of the panel frame 3, the face plate 2, the panel frame 3 and the back sheet material 4, and foams and solidifies. And material 9. As shown in FIG. 2, the wall panel 1 is formed in a vertically long rectangular shape, and the longitudinal direction thereof is directed vertically, and the upper end is a ceiling and the lower end is a floor.
[0013]
The face plate 2 and the panel frame 3 are integrally formed of, for example, FRP (glass fiber reinforced plastic). The back sheet material 4 is preferably a material having elasticity, and in this example, a nonwoven fabric is used. Of course, the materials of the face plate 2, the back sheet material 4, and the panel frame 3 are not limited to these.
[0014]
The panel frame 3 includes a front frame member 3a, a rear frame member 3b opposed to the front frame member 3a, and a pair of both side frame members 3c arranged on both sides. The other three frame members (the front frame member 3a and both side frame members 3c) except for the rear frame member 3b have the same height dimensions, and are air-tightly fixed to the back sheet member 4. Thereby, the height of the internal space 5 of the wall panel 1 is determined by the height dimensions of the front frame member 3a and both side frame members 3c.
[0015]
As shown in FIG. 1, a foam material injection hole 6 for injecting a foam material 9 into the internal space 5 is formed in a central portion 8a of the front frame member 3a. As the foaming material 9, a suitable foaming material such as urethane foam or styrol foam is used, but preferably a material having heat insulation properties is used.
[0016]
On the other hand, the height H2 of the rear side frame member 3b facing the front side frame member 3a is formed lower than the height H1 of the front side frame member 3a (FIG. 5B). A degassing gap 7 (FIG. 4) is formed between the back sheet material 4 and the back sheet material 4. The degassing gap 7 is, for example, about 1 mm to 5 mm.
[0017]
Further, a baffle plate 8 is provided on the front side F of the back side frame member 3b. As shown in FIG. 3, the baffle plate 8 extends in parallel with the back frame member 3b and over the entire length of the back frame member 3b in the width direction. In this example, the height H3 (FIG. 4) of the baffle plate 8 has the same height dimension over its entire length. The baffle plate 8 functions as a flow resistance portion for temporarily stopping the flow of the foaming material 9 during foaming, and functions to prevent a high foaming pressure from being applied to the rear frame member 3b. As shown in FIG. 4, the height H3 of the baffle plate 8 is set lower than the height H2 of the back frame member 3b, and the clearance S between the baffle plate 8 and the back sheet material 4 is used for gas release. It is larger than the gap 7. As a result, the foam material 9 supplied to the front space 5a between the front frame member 3a and the baffle plate 8 passes between the baffle plate 8 and the back sheet material 4 and between the baffle plate 8 and the back frame member 3b. The structure is such that it can flow into the back space 5b.
[0018]
Here, in the example of FIG. 4, the clearance S between the baffle plate 8 and the back sheet material 4 is set to 1.0 mm to 4.5 mm, and the distance D between the baffle plate 8 and the back side frame material 3 b is set to the height of the baffle plate 8. H3 is set to 2 to 5 times (for example, 100 mm). Incidentally, when the clearance S between the baffle plate 8 and the back sheet material 4 is less than 1.0 mm, the clearance S is too small, and the unfilled foam material 9 in the deep space 5b of the baffle plate 8 tends to occur. On the other hand, if the clearance S exceeds 4.5 mm, the clearance S is too large, and the function of the baffle plate 8 as flow resistance cannot be obtained. Further, when the distance D between the baffle plate 8 and the back side frame member 3b is shorter than twice the height H3 of the baffle plate 8, a high foaming pressure is applied to the back side frame member 3b, and the foam material 9 easily leaks. . Therefore, by setting the clearance S and the distance D within the above numerical values, a structure that can prevent leakage of the foam material 9 from the back side frame member 3b and unfilling of the foam material 9 can be prevented. The baffle plate 8 is not limited to being integrally formed with the face plate 2, but may be fixed separately from the face plate 2 by bonding or the like.
[0019]
Further, a floor mounting portion 10a having a lower height than the rear frame member 3b is provided below the rear frame member 3b, and the foam material 9 leaking from the rear frame member 3b is removed. It is structured to be received between the material 3b and the floor mounting portion 10a. A flange portion 10b (FIG. 5B) for fixing the upper end of the wall panel 1 to the ceiling is projected above the front frame member 3a, and outside the both frame members 3c, 3c, respectively. A connecting portion 10c (FIG. 5A) for connecting adjacent wall panels is protruded.
[0020]
Next, when filling the inner space 5 of the wall panel 1 with the foam material 9, first, as shown in FIG. 5A, the face plate 2 is placed between the upper press platen 11 and the lower press platen 12, With the back sheet material 4 facing upward, in a pressed state, a foam material injection nozzle (not shown) is inserted through a foam material injection hole 6 provided at an appropriate position of the panel frame 3 to remove the liquid foam material 9. It is supplied toward the center of the internal space 5 (the state shown in FIG. 5B). The liquid foaming material 9 becomes cloudy due to a chemical reaction and becomes creamy, and then fine bubbles are generated to start foaming. After a predetermined time (rising time), the inside of the internal space 5 is filled and cured to foam. Is completed. At this time, the gas generated in the foaming process and the residual air in the internal space 5 are released to the outside by the degassing gap 7, so that the unfilled foam material 9 can be eliminated.
[0021]
Here, since the baffle plate 8 lower than the back side frame member 3b is provided on the front side F of the back side frame member 3b, the baffle plate 8 becomes the flow resistance of the foam material 9 at the time of foaming, and Since the foaming pressure applied to the frame member 3b is reduced by the baffle plate 8, it is possible to prevent a high foaming pressure from being applied to the rear frame member 3b, and the foam material 9 leaks from the gas release gap 7 of the rear frame member 3b. Can be prevented. Moreover, since the height H3 of the baffle plate 8 is lower than the depth of the back frame member 3b and the clearance S between the baffle plate 8 and the back sheet material 4 is larger than the clearance 7 for degassing, the baffle during injection is prevented. The flow of the foam material 9 from the plate 8 to the rear frame member 3b can be prevented from being obstructed, whereby the unfilled foam material 9 does not occur even in the deep space 5b of the baffle plate 8, and as a result, The foam material 9 can be filled so as to cover the entire inner space 5 including the inner space 5b, and a desired high-quality foam molded product can be obtained.
[0022]
Moreover, since it is only necessary to project the baffle plate 8 on the front side F of the back side frame member 3b, the shape of the face plate 2 is not complicated, and further, the baffle plate 8 reinforces the inside of the wall panel 1 and distortion occurs. Therefore, it can have excellent strength to withstand the pressure during foam filling and the load during use after assembly.
[0023]
In addition, a clearance S is secured between the baffle plate 8 and the back sheet material 4, and a degassing gap 7 is secured between the back frame material 3 b and the back sheet material 4. When molding, the foam material 9 smoothly slides on the inner surface of the back sheet material 4 and easily moves, so that generation of wrinkles of the elastic back sheet material 4 can be suppressed. Further, in addition to the prevention of burrs, it is not necessary to stick the soft urethane to the back side frame member 3b as in the related art, so that the soft urethane does not protrude, and the trimming of the back sheet material 4 becomes easier than in the related art. There is also an advantage.
[0024]
FIG. 6 shows another embodiment of the baffle plate 8, in which the height H3 of the baffle plate 8 is changed so that both ends 8b, 8b are lower than the central portion 8a. Other configurations are the same as those of the above embodiment. Incidentally, since the foaming material 9 foams from the central portion of the internal space 5, when the height H3 of the baffle plate 8 is the same at the central portion 8a and at both ends 8b, 8b, the center of the baffle plate 8 The foaming pressure at the portion 8a is the largest, and the foaming pressure at both ends 8b, 8b is the smallest. Therefore, the amount of the foam material 9 passing through each part of the baffle plate 8 varies, and the baffle plate 8 May not be filled with the foam material 9 in the inner space 5b. Therefore, in this example, the height H3 of the central portion 8a of the baffle plate 8 at which the foaming pressure is highest is the highest, and the height H4 of both ends 8b, 8b of the baffle plate 8 at which the foaming pressure is the lowest is the central portion. 8a, the center clearance S1 becomes smaller than the end clearance S2, and the foaming pressure of each part of the baffle plate 8 can be made substantially uniform, thereby passing through each part of the baffle plate 8. Since the amount of the foam material 9 can be made substantially uniform, unfilling of the foam material 9 in the inner space 5b of the baffle plate 8 can be reliably prevented. As a result, the foam material 9 can be more uniformly filled over the entire internal space 5. Things.
[0025]
In the above embodiment, the wall panel 1 is formed in a rectangular shape, but may be square in some cases. In the example of FIG. 1, one baffle plate 8 is provided in front of the back side frame member 3b. However, another baffle plate (not shown) is provided further in front of this baffle plate 8 to provide a plurality of baffle plates. It is also possible to adopt a structure having the baffle plate 8.
[0026]
【The invention's effect】
As described above, according to the first aspect of the present invention, the back sheet material is attached to the back surface of the panel frame forming the four circumferences of the face plate, and the foam is formed in the internal space surrounded by the face plate, the panel frame, and the back sheet material. In a wall panel formed by injecting and solidifying a foam material, a foam material injection hole is formed in a front frame material of a pair of front and rear frame materials facing the panel frame, and a rear frame material facing the front frame material. The height of the lower frame material is lower than the front frame material to form a gas vent gap between the rear frame material and the back sheet material, and a baffle plate is provided on the near side of the rear frame material, and the baffle plate and the back sheet are provided. Since the clearance between the materials is set to be larger than the degassing gap, the baffle plate becomes the flow resistance of the foam material during foaming, and the foaming pressure applied to the back side frame material is reduced by the baffle plate, so the back side frame To prevent foam material from leaking by preventing high foaming pressure from being applied to the material It can be. In addition, since the clearance between the baffle plate and the back sheet material is made larger than the clearance for degassing, the height of the baffle plate is lower than that of the back frame material, and the height of the baffle plate from the back frame material during injection is reduced. The flow of the foam material to the material can be prevented from being hindered, whereby the unfilled foam material does not occur even in the deep space between the baffle plate and the deep frame material, and as a result, the deep space is included. The foam material can be filled so as to cover the entire internal space, and a desired high-quality foam molded product can be obtained. Also, since it is only necessary to project the baffle plate in front of the back frame material, the shape of the face plate does not become complicated, and the baffle plate reinforces the inside of the wall panel, helps prevent distortion, and furthermore, the baffle plate and back Clearance is ensured between the sheet material and a clearance for venting between the back frame material and the back sheet material, so that the foam material smooths the inner surface of the back sheet material during foam molding. The back sheet material can be easily slid and moved, suppressing the occurrence of wrinkles in the back sheet material, and eliminating the need to stick soft urethane to the back side frame material as in the past, so that the soft urethane does not protrude, and the back sheet This makes it easier to trim the material.
[0027]
According to the second aspect of the present invention, in addition to the effect of the first aspect, the height of the baffle plate is changed so that both end portions are lower than the center portion. By increasing the height of the center of the baffle to be higher and lowering both ends of the baffle at the lowest foaming pressure than the center, the foaming pressure of each part of the baffle can be made almost uniform, Since the amount of foam material passing through each part of the plate can be made substantially uniform, it is possible to reliably prevent the foam material from being unfilled in the deep space between the baffle plate and the back frame material. It can be more uniformly filled throughout.
[0028]
According to a third aspect of the present invention, in addition to the effect of the first or second aspect, the clearance between the baffle plate and the back sheet material is set to 1.0 mm to 4.5 mm, and the baffle plate and the back frame material are provided. Since the distance between the baffle plates is 2 to 5 times the height of the baffle plates, it is possible to prevent the foam material from being unfilled in the deep space between the baffle plates and the back side frame material, and to reduce the flow resistance due to the baffle plates. A sufficient function can be obtained, and a high foaming pressure can be prevented from being applied to the rear frame material.
[Brief description of the drawings]
FIG. 1 is a front view of a face plate and a panel frame showing an example of an embodiment of the present invention.
FIG. 2 is a front view of the wall panel.
FIG. 3 is a perspective view of the vicinity of the baffle plate according to the first embodiment.
FIG. 4 is a sectional view taken along line AA of FIG. 2;
FIG. 5A is an explanatory diagram before injection of a foaming material, and FIG. 5B is an explanatory diagram after injection of a foaming material.
FIG. 6 is a sectional view of another embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Wall panel 2 Face plate 3 Panel frame 3a Front frame material 3b Back frame material 4 Back sheet material 5 Internal space 5b Back space 6 Foam injection hole 7 Gas vent gap 8 Baffle plate 8a Central part 8b Both ends D Baffle plate H1 Height of front frame H2 Height of back frame H3 Height of baffle S Clearance of baffle

Claims (3)

面板の4周を形成するパネル枠の背面にバックシート材を取り付け、面板とパネル枠とバックシート材とで囲まれた内部空間に発泡材を注入して発泡固化させてなる壁パネルにおいて、パネル枠の相対する前後一対の枠材のうち、前側枠材に発泡材注入孔を穿設し、前側枠材と相対する奥側枠材の高さを前側枠材よりも低くして奥側枠材とバックシート材との間にガス抜き用隙間を形成し、奥側枠材の手前側に邪魔板を設けると共に邪魔板とバックシート材間のクリアランスをガス抜き用隙間よりも大きく設定したことを特徴とする壁パネルの発泡材充填構造。A wall panel in which a back sheet material is attached to the back surface of a panel frame forming four circumferences of the face plate, and a foam material is injected into an internal space surrounded by the face plate, the panel frame, and the back sheet material and solidified by foaming, Of the pair of front and rear frame members facing each other, a foam material injection hole is formed in the front frame member, and the height of the rear frame member facing the front frame member is made lower than that of the front frame member. A gap for gas release is formed between the material and the back sheet material, a baffle plate is provided on the front side of the back frame material, and the clearance between the baffle plate and the back sheet material is set to be larger than the clearance for gas release. A foam material filling structure for a wall panel. 邪魔板の高さが中央部よりも両端部が低くなるように高さを変化させたことを特徴とする請求項1記載の壁パネルの発泡材充填構造。2. The foam material filling structure for a wall panel according to claim 1, wherein the height of the baffle plate is changed so that both end portions are lower than the center portion. 邪魔板とバックシート材間のクリアランスを1.0mm〜4.5mmとし、且つ邪魔板と奥側枠材間の距離を邪魔板の高さの2〜5倍としたことを特徴とする請求項1又は請求項2記載の壁パネルの発泡材充填構造。The clearance between the baffle plate and the back sheet material is 1.0 mm to 4.5 mm, and the distance between the baffle plate and the back frame material is 2 to 5 times the height of the baffle plate. 3. The foam material filling structure for a wall panel according to claim 1.
JP2002313412A 2002-10-28 2002-10-28 Foaming material filling structure of wall panel Withdrawn JP2004150040A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106885433A (en) * 2017-04-26 2017-06-23 合肥美菱股份有限公司 A kind of transparent refrigerator door body with touch screen structure
CN106918188A (en) * 2017-04-26 2017-07-04 合肥美菱股份有限公司 A kind of refrigerator transparent doors door foaming structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106885433A (en) * 2017-04-26 2017-06-23 合肥美菱股份有限公司 A kind of transparent refrigerator door body with touch screen structure
CN106918188A (en) * 2017-04-26 2017-07-04 合肥美菱股份有限公司 A kind of refrigerator transparent doors door foaming structure

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