JP5640501B2 - Showcase door - Google Patents

Showcase door Download PDF

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JP5640501B2
JP5640501B2 JP2010149773A JP2010149773A JP5640501B2 JP 5640501 B2 JP5640501 B2 JP 5640501B2 JP 2010149773 A JP2010149773 A JP 2010149773A JP 2010149773 A JP2010149773 A JP 2010149773A JP 5640501 B2 JP5640501 B2 JP 5640501B2
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frame
heater
conductive film
glass
dew
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JP2012013304A (en
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謙次 村林
謙次 村林
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Fuji Electric Co Ltd
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Fuji Electric Co Ltd
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Description

本発明は、冷蔵ショーケースの前面開口を閉塞するショーケース用扉体に関する。   The present invention relates to a door for a showcase that closes a front opening of a refrigerated showcase.

冷蔵ショーケースの前面開口を閉塞するショーケース用扉体は、防露ヒータとして機能する透明導電膜を全面に被着した透明ガラス板と、透明ガラス板の両側縁に沿って配設され、電源に接続して透明導電膜に通電する一対の外部接続電極とを備えている(たとえば、特許文献1参照)。   The door for the showcase that closes the front opening of the refrigerated showcase is arranged along the transparent glass plate with a transparent conductive film that covers the entire surface, which functions as a dew-proof heater, and on both sides of the transparent glass plate. And a pair of external connection electrodes that are electrically connected to the transparent conductive film (see, for example, Patent Document 1).

特開平6−294573号公報JP-A-6-294573

しかしながら、上述したショーケース用扉体において、外部接続電極は透明ガラス板の表面に露出しているため、外部接続電極とフレームとに囲まれた領域では透明ガラス板の表面で結露する。   However, in the door for a showcase described above, the external connection electrode is exposed on the surface of the transparent glass plate, and therefore, condensation occurs on the surface of the transparent glass plate in a region surrounded by the external connection electrode and the frame.

本発明は、上記に鑑みてなされたものであって、透明ガラス板の表面における結露を防止できるショーケース用扉体を提供することを目的とする。   This invention is made | formed in view of the above, Comprising: It aims at providing the door body for showcases which can prevent the dew condensation on the surface of a transparent glass plate.

上述した課題を解決し、目的を達成するために、本発明は、防露ヒータとして機能する透明導電膜を全面に被着した透明ガラス板と、前記透明ガラス板の上縁と下縁とに沿って配設され、電源に接続して前記透明導電膜に通電する一対の外部接続電極と、前記外部接続電極を被覆する態様で透明ガラス板を保持する上下一対となる横枠及び前記横枠の幅に比して狭い幅で形成され前記透明ガラス板を保持する左右一対の縦枠とからなるフレームとを備えたことを特徴とする。 In order to solve the above-described problems and achieve the object, the present invention provides a transparent glass plate with a transparent conductive film functioning as a dew-proof heater, and an upper edge and a lower edge of the transparent glass plate. A pair of external connection electrodes disposed along the power supply and energizing the transparent conductive film, and a pair of upper and lower horizontal frames that hold the transparent glass plate in a mode of covering the external connection electrodes, and the horizontal frame And a frame composed of a pair of left and right vertical frames that hold the transparent glass plate and are narrower than the width .

また、本発明は、上述したショーケース用扉体において、前記透明導電膜によって構成された導電膜ガラスヒータと前記フレームに設けられたガラス枠防露ヒータとを直列に接続したことを特徴とする。   Further, the present invention is characterized in that, in the above-described showcase door body, the conductive film glass heater constituted by the transparent conductive film and the glass frame dew-proof heater provided in the frame are connected in series. .

本発明にかかるショーケース用扉体は、外部接続電極を被覆する態様で透明ガラス板を保持する上下一対となるフレームを備えたので、外部接続電極とフレームとに囲まれた領域が露出しなくなり、透明ガラス板の表面における結露を防止できる。   Since the door for a showcase according to the present invention includes a pair of upper and lower frames that hold the transparent glass plate so as to cover the external connection electrode, the region surrounded by the external connection electrode and the frame is not exposed. It is possible to prevent condensation on the surface of the transparent glass plate.

また、透明導電膜によって構成された導電膜ガラスヒータとフレームに設けられたガラス枠防露ヒータとを直列に接続したので、透明導電膜の抵抗値の変動による消費電力の変動を導電ガラスヒータとガラス枠防露ヒータとを並列に接続する場合よりも小さくできる。   In addition, since the conductive glass heater formed of the transparent conductive film and the glass frame dew-proof heater provided on the frame are connected in series, the fluctuation of the power consumption due to the fluctuation of the resistance value of the transparent conductive film is reduced with the conductive glass heater. This can be made smaller than when the glass frame dew-proof heater is connected in parallel.

図1は、本発明の実施の形態であるショーケース用扉体で前面開口を閉塞したショーケースの正面図である。FIG. 1 is a front view of a showcase in which a front opening is closed with a showcase door body according to an embodiment of the present invention. 図2は、本発明の実施の形態であるショーケース用扉体を示す斜視図である。FIG. 2 is a perspective view showing a door for a showcase that is an embodiment of the present invention. 図3−1は、図2に示したショーケース用扉体を示す正面図である。FIG. 3A is a front view showing the door for the showcase shown in FIG. 図3−2は、図3−1に示したショーケース用扉体の要部を示す拡大図である。3-2 is an enlarged view showing a main part of the door for a showcase shown in FIG. 3-1. 図4は、導電膜ガラスヒータとガラス枠防露ヒータの接続を示す回路図である。FIG. 4 is a circuit diagram showing the connection between the conductive glass heater and the glass frame dew-proof heater.

以下に、本発明にかかるショーケース用扉体の実施の形態を図面に基づいて詳細に説明する。なお、この実施の形態によりこの発明が限定されるものではない。   Hereinafter, embodiments of a door for a showcase according to the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

図1は、本発明の実施の形態であるショーケース用扉体で前面開口を閉塞したショーケースの正面図であり、図2は、本発明の実施の形態であるショーケース用扉体を示す斜視図である。また、図3−1は、図2に示したショーケース用扉体を示す正面図であり、図3−2は、図3−1に示したショーケース用扉体の要部を示す拡大図である。   FIG. 1 is a front view of a showcase in which a front opening is closed by a showcase door body according to an embodiment of the present invention, and FIG. 2 shows the showcase door body according to an embodiment of the present invention. It is a perspective view. FIG. 3A is a front view showing the door for the showcase shown in FIG. 2, and FIG. 3-2 is an enlarged view showing the main part of the door for the showcase shown in FIG. It is.

ここで例示するショーケースは、コンビニエンスストア、スーパーマーケットなどの店舗に設置され、冷蔵商品、冷凍商品などの商品を冷蔵状態または冷凍状態に保持するもので、前面開口が本発明の実施の形態であるショーケース用扉体1(以下、扉体と称する)により閉塞され、ショーケースから商品を取り出す場合、ショーケースに商品を補充する場合に扉体1が開閉される。   The showcase illustrated here is installed in a store such as a convenience store or a supermarket, and holds products such as refrigerated products and frozen products in a refrigerated state or a frozen state, and the front opening is an embodiment of the present invention. When the product is taken out from the showcase by being closed by the showcase door 1 (hereinafter referred to as a door), the door 1 is opened and closed when the product is replenished to the showcase.

図1に示すように、本発明の実施の形態である扉体1は、ショーケースの前面開口を閉塞した状態で、ショーケースに収容した商品を外部から視認可能とするもので、透明ガラス板11を備えている。   As shown in FIG. 1, a door body 1 according to an embodiment of the present invention enables a product housed in a showcase to be visually recognized from the outside while the front opening of the showcase is closed. 11 is provided.

図2に示すように、透明ガラス板11は、矩形のガラス板であり、前面となる一方の面に防露ヒータとして機能する透明導電膜12が被着してある。透明導電膜12は、歩留まりを考慮して製造管理され、透明導電膜12の抵抗値は±20%の変動が許容されている。したがって、たとえば、透明導電膜12が構成する導電膜ガラスヒータ2が125Wの容量を必要とする場合には、透明導電膜12の抵抗値が48Ω〜80Ωの範囲に属するものを採用することになる。   As shown in FIG. 2, the transparent glass plate 11 is a rectangular glass plate, and a transparent conductive film 12 that functions as a dew-proof heater is attached to one surface serving as a front surface. The transparent conductive film 12 is manufactured and managed in consideration of the yield, and the resistance value of the transparent conductive film 12 is allowed to vary ± 20%. Therefore, for example, when the conductive film glass heater 2 formed by the transparent conductive film 12 requires a capacity of 125 W, the transparent conductive film 12 having a resistance value in the range of 48Ω to 80Ω is employed. .

図3に示すように、透明ガラス板11の前面上縁部と前面下縁部とには、電源(図示せず)に接続して、透明導電膜12に通電する一対の外部接続電極13が配設してある。   As shown in FIG. 3, a pair of external connection electrodes 13 that are connected to a power source (not shown) and energize the transparent conductive film 12 are connected to the front upper edge and the front lower edge of the transparent glass plate 11. It is arranged.

また、扉体1は、透明ガラス板11の前面上縁部に配設した外部接続電極13を被覆する態様で透明ガラス板11の上縁を保持する上枠31と、透明ガラス板11の前面下縁部に配設した外部接続電極13を被覆する態様で透明ガラス板11の下縁を保持する下枠32とを備えており、これら上枠31と下枠32とは、上下一対となる横枠(フレーム30)を構成する。   Further, the door body 1 includes an upper frame 31 that holds the upper edge of the transparent glass plate 11 in a mode of covering the external connection electrode 13 disposed on the upper edge of the front surface of the transparent glass plate 11, and the front surface of the transparent glass plate 11. A lower frame 32 that holds the lower edge of the transparent glass plate 11 so as to cover the external connection electrode 13 disposed on the lower edge portion. The upper frame 31 and the lower frame 32 are a pair of upper and lower sides. A horizontal frame (frame 30) is formed.

また、扉体1は、透明ガラス板11の左縁を保持する左枠33と、透明ガラス板11の右縁を保持する右枠34とを備えており、これら左枠33と右枠34とは、左右一対となる縦枠(フレーム30)を構成する。なお、縦枠(左枠33,右枠34)は、外部接続電極を被覆する必要がないので、横枠(上枠31,下枠32)に較べて幅を狭くするとともに厚みを薄くすることができ、扉体1の透視可能面積が拡大し、視認性が向上する。   The door 1 includes a left frame 33 that holds the left edge of the transparent glass plate 11 and a right frame 34 that holds the right edge of the transparent glass plate 11. Constitutes a pair of left and right vertical frames (frame 30). Note that the vertical frame (left frame 33, right frame 34) does not need to cover the external connection electrodes, so the width and the thickness of the vertical frame (the upper frame 31, the lower frame 32) are reduced compared to the horizontal frame (upper frame 31, lower frame 32). This increases the see-through area of the door 1 and improves the visibility.

上述した横枠(上枠31,下枠32)と縦枠(左枠33,右枠34)とは、金属製、樹脂製、または金属と樹脂とを複合したものであり、図2に示すように、内部にガラス枠防露ヒータ4が設けてある。ガラス枠防露ヒータ4は、横枠(上枠31,下枠32)と縦枠(左枠33,右枠34)の外表面に結露する事態を防止するためのもので、電源に接続して、ガラス枠防露ヒータ4に通電すると横枠(上枠31,下枠32)と縦枠(33,34)が温められる。   The horizontal frame (upper frame 31, lower frame 32) and vertical frame (left frame 33, right frame 34) described above are made of metal, resin, or a composite of metal and resin, as shown in FIG. Thus, the glass frame dew-proof heater 4 is provided inside. The glass frame dew-proof heater 4 is for preventing condensation on the outer surface of the horizontal frame (upper frame 31, lower frame 32) and vertical frame (left frame 33, right frame 34), and is connected to a power source. When the glass frame dew-proof heater 4 is energized, the horizontal frame (upper frame 31, lower frame 32) and vertical frame (33, 34) are heated.

図4は、導電膜ガラスヒータとガラス枠防露ヒータの接続を示す回路図である。図4に示すように、透明導電膜12が構成する導電膜ガラスヒータ2と、ガラス枠防露ヒータ4とは、直列に接続してある。   FIG. 4 is a circuit diagram showing the connection between the conductive glass heater and the glass frame dew-proof heater. As shown in FIG. 4, the conductive film glass heater 2 formed by the transparent conductive film 12 and the glass frame dew-proof heater 4 are connected in series.

以上説明したように、本発明の実施の形態であるショーケース用扉体1は、外部接続電極13を被覆する態様で透明ガラス板11を保持する上下一対となる上枠31と下枠32(横枠)を備えたので、外部接続電極13とフレーム30とに囲まれた領域が露出することがなくなり、透明ガラス板11の表面における結露を防止できる。   As described above, the showcase door body 1 according to the embodiment of the present invention includes the upper frame 31 and the lower frame 32 (a pair of upper and lower sides that hold the transparent glass plate 11 in a mode of covering the external connection electrode 13 ( A horizontal frame), the region surrounded by the external connection electrode 13 and the frame 30 is not exposed, and condensation on the surface of the transparent glass plate 11 can be prevented.

また、縦枠(左枠33,右枠34)が外部接続電極13を被覆する必要がないので、縦枠(左枠33,右枠34)の幅を狭くするとともに厚みを薄くすることができ、扉体1の透視可能面積が拡大し、視認性が向上する。さらに、外部接続電極13が露出しないので、扉体1の見栄えが良くなる。   In addition, since it is not necessary for the vertical frame (left frame 33, right frame 34) to cover the external connection electrode 13, the width of the vertical frame (left frame 33, right frame 34) can be reduced and the thickness can be reduced. The see-through area of the door body 1 is enlarged and the visibility is improved. Furthermore, since the external connection electrode 13 is not exposed, the appearance of the door body 1 is improved.

つぎに、導電膜ガラスヒータ2とガラス枠防露ヒータ4とを並列に接続するのと直列に接続するのとどちらが有利であるか検証する。ここでは、本発明の実施の形態である導電膜ガラスヒータ2の必要容量を125W、ガラス枠防露ヒータ4の必要容量を60Wとし、導電膜ガラスヒータ2の抵抗値は、透明導電膜の膜厚により±20%変動するものとする。   Next, it is verified which is more advantageous to connect the conductive film glass heater 2 and the glass frame dew-proof heater 4 in parallel or in series. Here, the required capacity of the conductive film glass heater 2 according to the embodiment of the present invention is 125 W, the required capacity of the glass frame dew-proof heater 4 is 60 W, and the resistance value of the conductive film glass heater 2 is the film of the transparent conductive film. It shall vary ± 20% depending on the thickness.

まず、導電膜ガラスヒータ2とガラス枠防露ヒータ4とを並列に接続した場合について検証する。
(1)導電膜ガラスヒータ2の抵抗は、80Ωである。
R=E/P(R:抵抗,E:電圧,P:電力)より
R=100/125=80(Ω)
(2)導電膜ガラスヒータ2の消費電力は、125W〜208Wの間で変動する。
P=E/Rより
Pmin=100/80=125(W)
Pmax=100/(80×0.6)=208(W)
(3)導電膜ガラスヒータ2に流れる電流は、1.25A〜2.08Aの間で変動する。
I=E/Rより
Imin=100/80=1.25(A)
Imax=100/(80×0.6)=2.08(A)
(4)ガラス枠防露ヒータ4の抵抗は、166Ωである。
R=E/Pより
R=100/60=166(Ω)
なお、ガラス枠防露ヒータ4の容量は導電膜ガラスヒータ2と異なり変動しない。
(5)ガラス枠防露ヒータ4に流れる電流は、0.6Aである。
I=E/Rより
I=100/166=0.6(A)
(6)導電膜ガラスヒータ2とガラス枠防露ヒータ4とを並列に接続した場合に流れる電流は、最大2.68Aである。
Imax=2.08+0.6=2.68(A)
First, it verifies about the case where the electrically conductive film glass heater 2 and the glass frame dew-proof heater 4 are connected in parallel.
(1) The resistance of the conductive glass heater 2 is 80Ω.
R = E 2 / P (R : resistance, E: Voltage, P: power) than R = 100 2/125 = 80 (Ω)
(2) The power consumption of the conductive glass heater 2 varies between 125W and 208W.
P = E 2 / R than Pmin = 100 2/80 = 125 (W)
Pmax = 100 2 /(80×0.6)=208 (W)
(3) The current flowing through the conductive glass heater 2 varies between 1.25A and 2.08A.
From I = E / R Imin = 100/80 = 1.25 (A)
Imax = 100 / (80 × 0.6) = 2.08 (A)
(4) The resistance of the glass frame dew-proof heater 4 is 166Ω.
R = E 2 / P from R = 100 2/60 = 166 (Ω)
The capacity of the glass frame dew-proof heater 4 does not vary unlike the conductive film glass heater 2.
(5) The current flowing through the glass frame dew-proof heater 4 is 0.6A.
From I = E / R I = 100/166 = 0.6 (A)
(6) The maximum current that flows when the conductive film glass heater 2 and the glass frame dew-proof heater 4 are connected in parallel is 2.68 A.
Imax = 2.08 + 0.6 = 2.68 (A)

つぎに、導電膜ガラスヒータ2とガラス枠防露ヒータ4とを直列に接続した場合について検証する。
(1)導電膜ガラスヒータ2とガラス枠防露ヒータ4の消費電力は、185Wである。
P=P+P
(P:導電膜ガラスヒータのヒータ容量,P:ガラス枠防露ヒータのヒータ容量)
P=125+60=185(W)
(2)導電膜ガラスヒータ2とガラス枠防露ヒータ4に流れる電流は、1.85Aである。
I=P/Eより
I=185/100=1.85(A)
(3)導電膜ガラスヒータ2の抵抗は、36.52〜21.91Ωの間で変動する。
R=P/Iより
max=125/1.85=36.52(Ω)
min=36.52×0.6=21.91(Ω)
(4)ガラス枠防露ヒータ4の抵抗は、17.53である。
R=P/Iより
=60/1.85=17.53(Ω)
なお、ガラス枠防露ヒータ4の抵抗は導電膜ガラスヒータ2と異なり変動しない。
(5)導電膜ガラスヒータ2とガラス枠防露ヒータ4を直列に接続した場合の抵抗は、39.44Ωである。
R=R+Rより
R=21.91+17.53=39.44(Ω)
(6)導電膜ガラスヒータ2とガラス枠防露ヒータ4とを直列に接続した場合に流れる電流は、最大2.53Aである。
I=E/Rより
Imax=100/39.44=2.53(A)
Next, it verifies about the case where the electrically conductive film glass heater 2 and the glass frame dew-proof heater 4 are connected in series.
(1) The power consumption of the conductive film glass heater 2 and the glass frame dew-proof heater 4 is 185 W.
P = P 1 + P 2
(P 1 : heater capacity of conductive film glass heater, P 2 : heater capacity of glass frame dew-proof heater)
P = 125 + 60 = 185 (W)
(2) The electric current which flows into the electrically conductive film glass heater 2 and the glass frame dew-proof heater 4 is 1.85A.
From I = P / E I = 185/100 = 1.85 (A)
(3) The resistance of the conductive film glass heater 2 varies between 36.52 and 21.91Ω.
From R = P / I 2 R 1 max = 125 / 1.85 2 = 36.52 (Ω)
R 1 min = 36.52 × 0.6 = 21.91 (Ω)
(4) The resistance of the glass frame dew-proof heater 4 is 17.53.
From R = P / I 2 R 2 = 60 / 1.85 2 = 17.53 (Ω)
The resistance of the glass frame dew-proof heater 4 does not vary unlike the conductive film glass heater 2.
(5) The resistance when the conductive film glass heater 2 and the glass frame dew-proof heater 4 are connected in series is 39.44Ω.
From R = R 1 + R 2 R = 21.91 + 17.53 = 39.44 (Ω)
(6) The current that flows when the conductive glass heater 2 and the glass frame dew-proof heater 4 are connected in series is 2.53 A at maximum.
From I = E / R Imax = 100 / 39.44 = 2.53 (A)

したがって、導電膜ガラスヒータ2とガラス枠防露ヒータ4とを並列に接続した場合に流れる電流と直列に接続した場合に流れる電流とでは、0.15Aの差がある。
I=2.68−2.53=0.15(A)
Therefore, there is a difference of 0.15 A between the current flowing when the conductive film glass heater 2 and the glass frame dew-proof heater 4 are connected in parallel and the current flowing when connected in series.
I = 2.68−2.53 = 0.15 (A)

導電膜ガラスヒータ2とガラス枠防露ヒータ4とを並列に接続した場合に較べて直列に接続した場合は6%の消費電力を抑制できることを意味する。また、ヒータ容量も6%抑制できることも意味するので、ヒータが過熱する事態も防止できる。   When the conductive film glass heater 2 and the glass frame dew-proof heater 4 are connected in series, it means that 6% power consumption can be suppressed. Moreover, since it also means that the heater capacity can be suppressed by 6%, it is possible to prevent the heater from overheating.

以上説明したように、本発明の実施の形態であるショーケース用扉体1は、導電膜ガラスヒータ2とガラス枠防露ヒータ4を直列に接続したので、並列に接続する場合よりも消費電力を抑制でき、導電膜ガラスヒータ2とガラス枠防露ヒータ4とが過熱する事態も防止できる。   As described above, the showcase door 1 according to the embodiment of the present invention has the conductive film glass heater 2 and the glass frame dew-proof heater 4 connected in series, so that it consumes more power than when connected in parallel. It is possible to prevent the conductive film glass heater 2 and the glass frame dew-proof heater 4 from overheating.

1 扉体(ショーケース用扉体)
11 透明ガラス板
12 透明導電膜
13 外部接続電極
2 導電膜ガラスヒータ
30 フレーム
31 上枠(横枠)
32 下枠(横枠)
33 左枠(縦枠)
34 右枠(縦枠)
4 ガラス枠防露ヒータ
1 Door (Showcase door)
11 transparent glass plate 12 transparent conductive film 13 external connection electrode 2 conductive film glass heater 30 frame 31 upper frame (horizontal frame)
32 Bottom frame (horizontal frame)
33 Left frame (vertical frame)
34 Right frame (vertical frame)
4 Glass frame dew-proof heater

Claims (2)

防露ヒータとして機能する透明導電膜を全面に被着した透明ガラス板と、
前記透明ガラス板の上縁と下縁とに沿って配設され、電源に接続して前記透明導電膜に通電する一対の外部接続電極と、
前記外部接続電極を被覆する態様で透明ガラス板を保持する上下一対となる横枠及び前記横枠の幅に比して狭い幅で形成され前記透明ガラス板を保持する左右一対の縦枠とからなるフレーム
を備えたことを特徴とするショーケース用扉体。
A transparent glass plate with a transparent conductive film functioning as a dew-proof heater applied to the entire surface;
A pair of external connection electrodes disposed along the upper and lower edges of the transparent glass plate, connected to a power source and energized to the transparent conductive film,
A pair of upper and lower horizontal frames that hold the transparent glass plate in a manner covering the external connection electrodes, and a pair of left and right vertical frames that are formed with a narrower width than the width of the horizontal frame and hold the transparent glass plate A door for a showcase, characterized by comprising:
前記透明導電膜によって構成された導電膜ガラスヒータと前記フレームに設けられたガラス枠防露ヒータとを直列に接続したことを特徴とする請求項1に記載のショーケース用扉体。   2. The door for a showcase according to claim 1, wherein a conductive film glass heater constituted by the transparent conductive film and a glass frame dew-proof heater provided on the frame are connected in series.
JP2010149773A 2010-06-30 2010-06-30 Showcase door Active JP5640501B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2010149773A JP5640501B2 (en) 2010-06-30 2010-06-30 Showcase door

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Application Number Priority Date Filing Date Title
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JP5640501B2 true JP5640501B2 (en) 2014-12-17

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Publication number Priority date Publication date Assignee Title
JP6438503B2 (en) * 2017-02-03 2018-12-12 ファナック株式会社 Component supply apparatus and component supply robot including the same
JP7186549B2 (en) * 2018-08-28 2022-12-09 ホシザキ株式会社 refrigerated showcase
CN112336123A (en) * 2019-08-09 2021-02-09 开利公司 Glass assembly for refrigeration equipment

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH062088B2 (en) * 1985-06-26 1994-01-12 三洋電機株式会社 Low temperature case
US5111618A (en) * 1989-12-11 1992-05-12 Ardco, Inc. Refrigerator door assembly with stylized substantially all glass front
JP2645926B2 (en) * 1991-07-25 1997-08-25 三洋電機株式会社 Electric heating door
JPH07322944A (en) * 1995-04-10 1995-12-12 Sanyo Electric Co Ltd Penetrable board
DE69819247T2 (en) * 1997-07-31 2004-08-12 Saint-Gobain Glass France Isolierverglasungselement

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