JP2004076448A

JP2004076448A - Double window structure for vehicle

Info

Publication number: JP2004076448A
Application number: JP2002239474A
Authority: JP
Inventors: Shigeki Matsuoka; 松岡　茂樹; Katsushige Sakuragi; 桜木　勝茂; Tomoaki Kito; 鬼頭　知彰; Hiroyuki Saito; 斎藤　裕之; Tomokazu Kamashika; 鎌鹿　智教; Yoshihiko Sato; 佐藤　仁彦; Osamu Komaki; 小牧　修; Koichi Matsumoto; 松本　晃一
Original assignee: SAPPORO SHEET FRAME KK; Kawasaki Heavy Industries Ltd; Tokyu Car Corp; Hokkaido Railway Co
Current assignee: SAPPORO SHEET FRAME KK; Kawasaki Heavy Industries Ltd; Tokyu Car Corp; Hokkaido Railway Co
Priority date: 2002-08-20
Filing date: 2002-08-20
Publication date: 2004-03-11
Anticipated expiration: 2022-08-20
Also published as: JP3645874B2

Abstract

PROBLEM TO BE SOLVED: To provide a double window structure for a vehicle which efficiently constitutes a high-quality double window. SOLUTION: According to the structure, an outer window plate 2 and an inner window plate 3 are mounted to a window frame 1 in a unit beforehand, and therefore the double window is efficiently constructed only by fixing the window frame W1 to a side pole W1, a window head, and a window sill which form a window opening for a railway vehicle at the assembling site of the railway vehicle. Further, unitizing work, i.e. the mounting of the outer window plate 2 and the inner window plate 3 of the window frame 1 is carried out in a clean working environment, and therefore an air layer 12 between the outer window plate 2 and the inner window plate 3 is prevented from the infiltration of moisture and dust. At the time of maintenance, the whole of the window frame 1 with the outer window plate 2 and the inner window plate 3 mounted thereto is exchangeable, or only the outer window plate 2 or the inner window plate 3 is exchangeable. COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、鉄道車両等の二重窓構造に関し、詳しくは、窓枠、外側窓板および内側窓板が予め一体にユニット化された車両用二重窓構造に関するものである。
【０００２】
【従来の技術】
鉄道車両の窓構造に関しては、実開平７−６０２３号公報に記載のものが従来一般に知られている。この窓構造は、窓枠に複層ガラスが予め装着された窓ユニットを車両外板の窓取付用開口部に取り付けるようにしたものである。しかしながら、この窓構造は、単に結露防止用の複層ガラスを窓板として有するのみで、二重窓を構成するものではない。このため、風雪に晒されることのある鉄道車両の窓構造に適用した場合、複層ガラスが破損する虞もあり、強度面での不安が残る。
【０００３】
そこで、風雪に晒されることのある鉄道車両の窓構造としては、複層ガラス等の窓板を保護する他の窓板を備えた二重窓構造が適切である。
【０００４】
【発明が解決しようとする課題】
ところで、従来の車両艤装技術により車両の窓を二重窓構造とする場合、車両の組立現場で車両の窓用開口の周縁部に窓枠を組み付け、この窓枠に対して内側窓板および外側窓板をそれぞれ組み付けることとなる。しかしながら、車両の組立現場は、通常、クリーンルームのような清浄な作業環境にないため、内側窓板と外側窓板との間の空気層に湿気や塵埃が混入し、二重窓の品質が著しく低下する虞がある。
【０００５】
また、車両の組立現場で窓枠、内側窓板、外側窓板の他、スペーサ、止ネジ、弾性材、シーリング材等の多数の部品を組み付けるため、工期が長く掛かり、コスト高を招くという問題もある。
【０００６】
そこで、本発明は、高品質な二重窓を効率的に構成することができる車両用二重窓構造を提供することを課題とする。
【０００７】
【課題を解決するための手段】
本発明に係る車両用二重窓構造は、車両の窓用開口部に着脱自在に固定される窓枠と、この窓枠の外面側に予め着脱自在に装着された外側窓板材と、前記窓枠の内面側に予め着脱自在に装着された内側窓板材とを備えて構成されていることを特徴とする。
【０００８】
本発明に係る車両用二重窓構造では、外側窓板および内側窓板が予め窓枠に装着されてユニット化されているため、車両の組立現場では、車両の窓用開口部に窓枠を固定するだけで、効率的に二重窓が構成される。また、窓枠に外側窓板および内側窓板を装着するユニット化作業を清浄な作業環境のもとで行うことにより、外側窓板と内側窓板との間の空気層に湿気や塵埃が混入するのが防止される。さらに、保守点検作業に際しては、外側窓板および内側窓板が装着された窓枠ごとの交換、外側窓板または内側窓板のみの交換が可能となる。
【０００９】
本発明の車両用二重窓構造において、外側窓板または内側窓板の一方は透明樹脂板で構成し、他方は複層ガラスで構成することができる。この場合、内側窓板を複層ガラスで構成し、外側窓板を透明樹脂板で構成すれば、風雪に晒されることのある鉄道車両の二重窓に適用した場合においても、複層ガラスは透明樹脂板に保護されてその破損が防止される。
【００１０】
また、本発明の車両用二重窓構造において、外側窓板の周縁部が窓枠とその外面側に着脱自在に固定される外枠との間に弾性材を介して挟持され、内側窓板の周縁部が窓枠とその内面側に着脱自在に固定される内枠との間に弾性材を介して挟持されており、外側窓板と窓枠と外枠との相互間および内側窓板と窓枠と内枠との相互間がシーリング材（コーキング材）により気密にシールされていると、外側窓板と内側窓板との間の空気層が気密にシールされ、結露防止機能が向上するので好ましい。
【００１１】
【発明の実施の形態】
以下、図面を参照して本発明に係る車両用二重窓構造の実施の形態を説明する。参照する図面において、図１は本発明の一実施形態に係る車両用二重窓構造を備えた鉄道車両の側面図、図２は図１に示した側窓の右側周縁部の断面図、図３は図１に示した側窓の上下周縁部の断面図、図４は図２に示した側窓の二重窓構造を拡大して示す断面図である。
【００１２】
本発明の一実施形態に係る車両用二重窓構造は、例えば図１に示す鉄道車両Ｔの側窓Ｗに適用される。この鉄道車両Ｔは、二重窓構造の側窓Ｗが装着される窓用開口部として、図２に示す側柱Ｗ１と、図３に示す幕帯Ｗ２および腰帯Ｗ３によって囲まれる開口部を有している。
【００１３】
図２および図３に示すように、一実施形態の車両用二重窓構造は、窓用開口部を構成する左右の側柱Ｗ１、幕帯Ｗ２および腰帯Ｗ３にそれぞれ着脱自在に固定される窓枠１と、この窓枠１の外面側（鉄道車両Ｔの車室外側）に予め着脱自在に装着された外側窓板２と、窓枠１の内面側（鉄道車両Ｔの車室内側）に予め着脱自在に装着された内側窓板３とを備えて構成されている。
【００１４】
窓枠１は、アルミニウム合金の異形押出型材を四隅で溶接して枠状に形成したものであり、その断面形状は、図４に拡大して示すような中空の異形に形成されている。すなわち、窓枠１の断面形状は、車室外に向く外壁部１Ａが直線状をなし、車室内に向く内壁部１Ｂが山形に屈曲し、窓用開口部に向く外周壁部１Ｃが直線状をなし、外側窓板２および内側窓板３に向く内周壁部１Ｄがクランク状に屈曲すると共に、外側窓板２および内側窓板３を挟持するための挟持片１Ｅが内周壁部１Ｄの屈曲部から外壁部１Ａと平行に突出し、窓用開口部への取付片１Ｆが外周壁部１Ｃの内壁部１Ｂ側から突出する異形の断面形状とされている。
【００１５】
この窓枠１は、取付片１Ｆに形成されたネジ挿通孔１Ｇに挿通される止ネジ４により、窓用開口部を構成する側柱Ｗ１、幕帯Ｗ２および腰帯Ｗ３に着脱自在に固定される（図２および図３参照）。
【００１６】
外側窓板２は、例えば表面がシリコンハードコートで被覆されたポリカーボネート板などの厚さ８ｍｍ程度の透明樹脂板により構成されている。この外側窓板２は、窓枠１の挟持片１Ｅと、窓枠１の外壁部１Ａに着脱自在に固定される外枠５の挟持片５Ａとの間に弾性材６を介して周縁部が挟持されることで、窓枠１の外面側に予め着脱自在に装着される。
【００１７】
外枠５は、アルミニウム合金などの金属材からなり、止ネジ７を介して窓枠１の外壁部１Ａに着脱自在に固定される。この外枠５には、窓枠１の挟持片１Ｅに対し所定間隔を開けて平行に突出する挟持片５Ａと、外壁部１Ａとの間において止ネジ７の周囲にシール用空間を形成する座ぐり穴５Ｂとが一体に形成されている。なお、この座ぐり穴５Ｂは、長溝に変更することができる。
【００１８】
弾性材６は、例えば不燃性のＣＲゴムからなり、外側窓板２の周縁部に嵌合する装着溝６Ａが一体に形成されたＵ字状の断面形状を呈する。
【００１９】
内側窓板３は、２枚のガラス板３Ａの間に断熱空気層３Ｂを形成した複層ガラスで構成されている。この内側窓板３は、窓枠１の挟持片１Ｅと、窓枠１の内壁部１Ｂに着脱自在に固定される内枠８の挟持片８Ａとの間に弾性材９を介して周縁部が挟持されることで、窓枠１の内面側に予め着脱自在に装着される。
【００２０】
内枠８は、アルミニウム合金などの金属材からなり、止ネジ１０を介して窓枠１の内壁部１Ｂに着脱自在に固定される。この内枠８は、窓枠１の挟持片１Ｅに対し所定間隔を開けて平行に突出する挟持片８Ａと、内壁部１Ｂに止ネジ１０を介して固定される接合片８Ｂとが一体に形成されたクランク状の断面形状を呈する。
【００２１】
弾性材９は、例えば不燃性のＣＲゴムからなり、内側窓板３の周縁部に嵌合する装着溝９Ａが一体に形成されたＵ字状の断面形状を呈する。
【００２２】
外側窓板２と内側窓板３との間には、その周縁部に沿ってスペーサ１１が介設されている。このスペーサ１１は、外側窓板２と内側窓板３との間に形成された空気層１２内の湿気を吸収する乾燥剤がその全周に亘って充填されたものであり、表面に予め付着された接着剤により外側窓板２および内側窓板３の内面に接着される。
【００２３】
ここで、外側窓板２と窓枠１と外枠５との相互間および内側窓板３と窓枠１と内枠８との相互間は、予めシーリング材（コーキング材）Ｃ１〜Ｃ７により気密にシールされている。なお、シーリング材Ｃ１，Ｃ３は、外側窓板２を構成するポリカーボネート板に接触する関係から、ポリカーボネート板に悪影響のないシリコン系脱アルコールタイプのものが好適に使用され、その他シーリング材Ｃ２，Ｃ４〜Ｃ７は、チオコール系２液型のものが使用されている。
【００２４】
シーリング材Ｃ１は、外側窓板２の外面側において、外枠５の挟持片５Ａの先端縁部と外側窓板２との間をシールしている。シーリング材Ｃ２は、弾性材６の背面側において、外枠５と窓枠１との間をシールしている。シーリング材Ｃ３は、スペーサ１１の背面側において、窓枠１の挟持片１Ｅの先端縁部と外側窓板２と内側窓板３との間をシールしている。
【００２５】
シーリング材Ｃ４は、内側窓板３の内面側において、内枠８の挟持片８Ａの先端縁部と内側窓板３との間をシールしている。シーリング材Ｃ５は、内枠８の接合片８Ｂと窓枠１の内壁部１Ｂとの間をシールしている。
【００２６】
シーリング材Ｃ６は、外枠５の座ぐり穴５Ｂに充填されて外枠５と止ネジ７と窓枠１の外壁部１Ａとの間をシールしている。シーリング材Ｃ７は、止ネジ７の頭部と外枠５との間をシールしている。
【００２７】
なお、鉄道車両Ｔの窓枠開口部を構成する側柱Ｗ１、幕帯Ｗ２および腰帯Ｗ３にパッキン１３およびシール止１４を介して窓枠１の取付片１Ｆが止ネジ４により固定された後において、窓枠１の外壁部１Ａと外枠５とシール止１４との間の隙間がシーリング材Ｃ８によりシールされる。また、内枠８の接合片８Ｂから窓枠１の内壁部１Ｂおよび取付片１Ｆに亘る部分の表面がＣＲスポンジの塗布によるコーティング層１５により覆われる。
【００２８】
以上のように構成された一実施形態の車両用二重窓構造においては、予め清浄な作業環境のもとで、窓枠１に外枠５を固定して外側窓板２を装着し、窓枠１に内枠８を固定して内側窓板３を装着する。そして、外側窓板２と窓枠１と外枠５との相互間および内側窓板３と窓枠１と内枠８との相互間をシーリング材Ｃ１〜Ｃ７により気密にシールしてユニット化しておく。このようなユニット化作業により、外側窓板２と内側窓板３との間の空気層１２に湿気や塵埃が混入するのを防止することができる。
【００２９】
ユニット化により外側窓板２および内側窓板３が予め装着された窓枠１は、鉄道車両Ｔの組立現場において、鉄道車両Ｔの窓用開口部を構成する側柱Ｗ１、幕帯Ｗ２および腰帯Ｗ３にパッキン１３およびシール止１４を介して窓枠１の取付片１Ｆを止ネジ４で固定する。そして、窓枠１の外壁部１Ａと外枠５とシール止１４との間の隙間をシーリング材Ｃ８によりシールし、内枠８の接合片８Ｂから窓枠１の内壁部１Ｂおよび取付片１Ｆに亘る部分の表面をＣＲスポンジの塗布によるコーティング層１５で覆う。このような簡単な作業により、鉄道車両Ｔには、一実施形態の車両用二重窓構造を有する側窓Ｗが効率的に短期間で構成される。
【００３０】
この側窓Ｗは、ポリカーボネート板などの透明樹脂板により構成され外側窓板２と、複層ガラスで構成された内側窓板３との間に空気層１２を有し、この空気層１２が気密にシールされているため、優れた結露防止機能を発揮する。また、内側窓板３が複層ガラスで構成され、外側窓板２が透明樹脂板で構成されているため、風雪に晒されるた場合においても、複層ガラスは透明樹脂板に保護されてその破損が防止される。
【００３１】
従って、一実施形態の車両用二重窓構造によれば、高品質な二重窓を効率的に構成することができ、品質向上、工期短縮、コスト削減を達成することができる。
【００３２】
また、保守点検作業に際しては、外側窓板２および内側窓板３が装着された窓枠１ごとの交換、外側窓板２または内側窓板３みの交換が可能であり、保守性に優れる。
【００３３】
本発明に係る車両用二重窓構造は、前述した一実施形態に限定されるものではない。例えば、一実施形態においては、外側窓板２を透明樹脂板で構成し、内側窓板３を複層ガラスで構成したが、反対に外側窓板２を複層ガラスで構成し、内側窓板３を透明樹脂板で構成してもよい。また、外側窓板２および内側窓板３の両方を複層ガラスまたは透明樹脂板で構成してもよい。
【００３４】
【発明の効果】
以上説明したように、本発明に係る車両用二重窓構造によれば、外側窓板および内側窓板が予め窓枠に装着されてユニット化されているため、車両の組立現場では、車両の窓用開口部に窓枠を固定するだけで、効率的に二重窓を構成することができる。また、窓枠に外側窓板および内側窓板を装着するユニット化作業を清浄な作業環境のもとで行うことにより、外側窓板と内側窓板との間の空気層に湿気や塵埃が混入するのを防止できる。従って、本発明によれば、高品質な二重窓を効率的に構成することができ、品質向上、工期短縮、コスト削減を達成することができる。
【００３５】
また、保守点検作業に際しては、外側窓板および内側窓板が装着された窓枠ごとの交換、外側窓板または内側窓板のみの交換が可能であり、保守性に優れる。
【図面の簡単な説明】
【図１】本発明の一実施形態に係る車両用二重窓構造を備えた鉄道車両の側面図である。
【図２】図１に示した側窓の右側周縁部の断面図である。
【図３】図１に示した側窓の上下周縁部の断面図である。
【図４】図２に示した側窓の二重窓構造を拡大して示す断面図である。
【符号の説明】
１…窓枠、２…外側窓板、３…内側窓板、４…止ネジ、５…外枠、６…弾性材、７…止ネジ、８…内枠、９…弾性材、１０…止ネジ、１１…スペーサ、１２…空気層、１３…パッキン、１４…シール止、１５…コーティング層、Ｃ１〜Ｃ８…シーリング材（コーキング材）、Ｔ…鉄道車両、Ｗ…側窓。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a double window structure for a railway vehicle or the like, and more particularly to a double window structure for a vehicle in which a window frame, an outer window plate, and an inner window plate are unitized in advance.
[0002]
[Prior art]
With respect to the window structure of a railway vehicle, the structure described in Japanese Utility Model Laid-Open No. 7-6023 is generally known. In this window structure, a window unit having a double glazing mounted on a window frame in advance is mounted on a window mounting opening of a vehicle outer panel. However, this window structure merely has a double-glazing for preventing condensation as a window plate, and does not constitute a double window. For this reason, when applied to the window structure of a railway vehicle which may be exposed to the wind and snow, the double-glazed glass may be damaged, and there is a concern about strength.
[0003]
Therefore, as a window structure of a railway vehicle that may be exposed to the wind and snow, a double window structure including another window plate for protecting a window plate such as a double-glazed glass is appropriate.
[0004]
[Problems to be solved by the invention]
By the way, when a vehicle window has a double-window structure according to the conventional vehicle outfitting technology, a window frame is assembled around the periphery of a window opening of a vehicle at a vehicle assembly site, and an inner window plate and an outer window plate are attached to the window frame. The window boards will be assembled respectively. However, since the vehicle assembly site is not usually in a clean working environment such as a clean room, moisture and dust are mixed in the air layer between the inner window plate and the outer window plate, and the quality of the double window is remarkably high. There is a risk of lowering.
[0005]
In addition, since a large number of parts such as spacers, set screws, elastic materials, sealing materials, and the like, as well as window frames, inner window plates, and outer window plates are assembled at a vehicle assembly site, the construction period is long, resulting in an increase in cost. There is also.
[0006]
Then, an object of the present invention is to provide a double window structure for vehicles which can efficiently constitute a high quality double window.
[0007]
[Means for Solving the Problems]
The double window structure for a vehicle according to the present invention includes a window frame detachably fixed to a window opening of a vehicle, an outer window plate material detachably mounted on an outer surface side of the window frame, and the window. It is characterized by comprising an inner window plate material detachably mounted in advance on the inner surface side of the frame.
[0008]
In the double window structure for a vehicle according to the present invention, since the outer window plate and the inner window plate are mounted on the window frame in advance and unitized, at the vehicle assembly site, the window frame is provided at the window opening of the vehicle. By simply fixing, a double window is constructed efficiently. In addition, moisture and dust are mixed in the air layer between the outer window plate and the inner window plate by performing the unitization work of attaching the outer window plate and the inner window plate to the window frame in a clean working environment. Is prevented. Further, in maintenance and inspection work, replacement of each window frame on which the outer window plate and the inner window plate are mounted, and replacement of only the outer window plate or the inner window plate can be performed.
[0009]
In the double window structure for a vehicle according to the present invention, one of the outer window plate and the inner window plate may be formed of a transparent resin plate, and the other may be formed of a multi-layer glass. In this case, if the inner window plate is formed of a double-glazed glass and the outer window plate is formed of a transparent resin plate, even when applied to a double window of a railway car that may be exposed to the wind and snow, the double-glazed glass is It is protected by the transparent resin plate and its breakage is prevented.
[0010]
Further, in the vehicle double window structure of the present invention, the peripheral portion of the outer window plate is sandwiched between the window frame and the outer frame detachably fixed to the outer surface side thereof via an elastic material, and the inner window plate is provided. Is sandwiched between a window frame and an inner frame detachably fixed to the inner surface side thereof via an elastic material, and is provided between the outer window plate, the window frame and the outer frame, and the inner window plate. When the gap between the window frame and the inner frame is air-tightly sealed with a sealing material (caulking material), the air layer between the outer window plate and the inner window plate is air-tightly sealed, and the dew condensation prevention function is improved. Is preferred.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of a vehicle double window structure according to the present invention will be described with reference to the drawings. In the drawings to be referred to, FIG. 1 is a side view of a railway vehicle having a double window structure for a vehicle according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of a right peripheral portion of a side window shown in FIG. 3 is a cross-sectional view of the upper and lower peripheral portions of the side window shown in FIG. 1, and FIG. 4 is an enlarged cross-sectional view of the double window structure of the side window shown in FIG.
[0012]
The double window structure for a vehicle according to an embodiment of the present invention is applied to, for example, a side window W of a railway vehicle T shown in FIG. This railcar T has a window opening in which a side window W having a double window structure is attached, and an opening surrounded by a side pillar W1 shown in FIG. 2 and a curtain band W2 and a waist band W3 shown in FIG. are doing.
[0013]
As shown in FIGS. 2 and 3, the double window structure for a vehicle according to one embodiment includes windows that are detachably fixed to left and right side pillars W 1, curtain bands W 2, and waistbands W 3 constituting a window opening. A frame 1, an outer window plate 2 which is detachably mounted in advance on an outer surface side of the window frame 1 (outside the passenger compartment of the railway vehicle T), and an inner surface side of the window frame 1 (inside the passenger compartment of the railway vehicle T). And an inner window plate 3 which is detachably mounted in advance.
[0014]
The window frame 1 is formed by welding an extruded aluminum alloy material at four corners to form a frame, and the cross-sectional shape is formed in a hollow shape as shown in an enlarged manner in FIG. That is, the cross-sectional shape of the window frame 1 is such that the outer wall portion 1A facing the outside of the vehicle compartment is linear, the inner wall portion 1B facing the vehicle compartment is bent in a mountain shape, and the outer peripheral wall portion 1C facing the window opening is linear. None, the inner peripheral wall portion 1D facing the outer window plate 2 and the inner window plate 3 is bent in a crank shape, and the holding pieces 1E for holding the outer window plate 2 and the inner window plate 3 are bent portions of the inner peripheral wall portion 1D. From the inner wall 1B of the outer peripheral wall 1C so as to project from the inner wall 1B of the outer peripheral wall 1C.
[0015]
The window frame 1 is detachably fixed to the side pillar W1, the curtain band W2, and the waist band W3 constituting the window opening by a set screw 4 inserted into a screw insertion hole 1G formed in the mounting piece 1F. (See FIGS. 2 and 3).
[0016]
The outer window plate 2 is made of, for example, a transparent resin plate having a thickness of about 8 mm such as a polycarbonate plate whose surface is covered with a silicon hard coat. The outer window plate 2 has a peripheral portion via an elastic member 6 between a holding piece 1E of the window frame 1 and a holding piece 5A of an outer frame 5 detachably fixed to an outer wall 1A of the window frame 1. By being sandwiched, the window frame 1 is detachably mounted on the outer surface side of the window frame 1 in advance.
[0017]
The outer frame 5 is made of a metal material such as an aluminum alloy, and is detachably fixed to the outer wall portion 1A of the window frame 1 via a set screw 7. The outer frame 5 has a holding piece 5A projecting in parallel with the holding piece 1E of the window frame 1 at a predetermined interval, and a seat for forming a sealing space around the set screw 7 between the outer wall 1A. The counterbore 5B is formed integrally. The counterbore hole 5B can be changed to a long groove.
[0018]
The elastic member 6 is made of, for example, noncombustible CR rubber, and has a U-shaped cross-sectional shape in which a mounting groove 6A that fits into the peripheral edge of the outer window plate 2 is integrally formed.
[0019]
The inner window plate 3 is made of a double glazing in which a heat insulating air layer 3B is formed between two glass plates 3A. The inner window plate 3 has a peripheral portion via an elastic member 9 between a holding piece 1E of the window frame 1 and a holding piece 8A of an inner frame 8 detachably fixed to the inner wall portion 1B of the window frame 1. By being pinched, it is detachably mounted on the inner surface side of the window frame 1 in advance.
[0020]
The inner frame 8 is made of a metal material such as an aluminum alloy, and is detachably fixed to the inner wall portion 1B of the window frame 1 via a set screw 10. The inner frame 8 is integrally formed with a holding piece 8A projecting in parallel with the holding piece 1E of the window frame 1 at a predetermined interval and a joining piece 8B fixed to the inner wall portion 1B via a set screw 10. It has a shaped crank-shaped cross section.
[0021]
The elastic material 9 is made of, for example, non-combustible CR rubber, and has a U-shaped cross-sectional shape in which a mounting groove 9 A that fits into the peripheral portion of the inner window plate 3 is integrally formed.
[0022]
A spacer 11 is interposed between the outer window plate 2 and the inner window plate 3 along the peripheral edge thereof. The spacer 11 is filled with a desiccant that absorbs moisture in the air layer 12 formed between the outer window plate 2 and the inner window plate 3 over its entire circumference, and is attached to the surface in advance. The bonded adhesive is adhered to the inner surfaces of the outer window plate 2 and the inner window plate 3.
[0023]
Here, the space between the outer window plate 2 and the window frame 1 and the outer frame 5 and the space between the inner window plate 3 and the window frame 1 and the inner frame 8 are airtight with sealing materials (caulking materials) C1 to C7 in advance. Sealed. As the sealing materials C1 and C3, a silicon-based dealcohol-type material that does not adversely affect the polycarbonate plate is preferably used because of contact with the polycarbonate plate constituting the outer window plate 2, and other sealing materials C2 and C4 to As C7, a thiochol two-pack type is used.
[0024]
The sealing material C 1 seals between the outer edge of the outer window 5 and the outer edge of the holding piece 5 A on the outer surface of the outer window 2. The sealing material C 2 seals between the outer frame 5 and the window frame 1 on the back side of the elastic material 6. The sealing material C 3 seals between the outer edge of the holding piece 1 E of the window frame 1, the outer window plate 2, and the inner window plate 3 on the back side of the spacer 11.
[0025]
The sealing material C 4 seals between the front edge of the holding piece 8 A of the inner frame 8 and the inner window plate 3 on the inner surface side of the inner window plate 3. The sealing material C5 seals between the joining piece 8B of the inner frame 8 and the inner wall 1B of the window frame 1.
[0026]
The sealing material C6 is filled in the counterbore 5B of the outer frame 5 to seal between the outer frame 5, the set screw 7 and the outer wall 1A of the window frame 1. The sealing material C7 seals between the head of the set screw 7 and the outer frame 5.
[0027]
After the mounting piece 1F of the window frame 1 is fixed to the side pillar W1, the curtain band W2, and the waist band W3 forming the window frame opening of the railway vehicle T via the packing 13 and the seal stopper 14, by the set screw 4. The gap between the outer wall portion 1A of the window frame 1, the outer frame 5, and the seal stopper 14 is sealed by the sealing material C8. In addition, the surface of the portion from the joining piece 8B of the inner frame 8 to the inner wall portion 1B and the mounting piece 1F of the window frame 1 is covered with the coating layer 15 formed by applying a CR sponge.
[0028]
In the double window structure for a vehicle according to the embodiment configured as described above, the outer frame 5 is fixed to the window frame 1 and the outer window plate 2 is attached to the window frame 1 in a clean working environment. The inner frame 8 is fixed to the frame 1 and the inner window plate 3 is mounted. Then, the space between the outer window plate 2, the window frame 1, and the outer frame 5 and the space between the inner window plate 3, the window frame 1, and the inner frame 8 are hermetically sealed with sealing materials C1 to C7 to form a unit. deep. By such a unitization work, it is possible to prevent moisture and dust from being mixed into the air layer 12 between the outer window plate 2 and the inner window plate 3.
[0029]
The window frame 1 on which the outer window plate 2 and the inner window plate 3 are mounted in advance by unitization is used at the assembly site of the railway vehicle T to form a side pillar W1, a curtain band W2, and a waist band constituting a window opening of the railway vehicle T. The mounting piece 1F of the window frame 1 is fixed to W3 via the packing 13 and the seal stopper 14 with the set screw 4. Then, the gap between the outer wall portion 1A of the window frame 1, the outer frame 5, and the sealing stopper 14 is sealed with a sealing material C8, and from the joining piece 8B of the inner frame 8 to the inner wall portion 1B of the window frame 1 and the mounting piece 1F. The surface of the bridging portion is covered with a coating layer 15 formed by applying a CR sponge. By such a simple operation, the side window W having the double window structure for the vehicle according to the embodiment is efficiently configured in the railway vehicle T in a short period of time.
[0030]
The side window W has an air layer 12 between an outer window plate 2 made of a transparent resin plate such as a polycarbonate plate and an inner window plate 3 made of a multi-layer glass, and this air layer 12 is airtight. As it is sealed, it exhibits an excellent condensation prevention function. Further, since the inner window plate 3 is made of a double-layer glass and the outer window plate 2 is made of a transparent resin plate, the double-layer glass is protected by the transparent resin plate even when exposed to wind and snow. Damage is prevented.
[0031]
Therefore, according to the double window structure for a vehicle of one embodiment, a high quality double window can be efficiently configured, and quality improvement, shortening of construction period, and cost reduction can be achieved.
[0032]
Further, at the time of maintenance and inspection work, replacement of each window frame 1 on which the outer window plate 2 and the inner window plate 3 are mounted, and replacement of only the outer window plate 2 or the inner window plate 3 are possible, which is excellent in maintainability.
[0033]
The double window structure for a vehicle according to the present invention is not limited to the above-described embodiment. For example, in one embodiment, the outer window plate 2 is formed of a transparent resin plate, and the inner window plate 3 is formed of a double-layer glass. 3 may be composed of a transparent resin plate. Further, both the outer window plate 2 and the inner window plate 3 may be formed of a double-layer glass or a transparent resin plate.
[0034]
【The invention's effect】
As described above, according to the double window structure for a vehicle according to the present invention, the outer window plate and the inner window plate are mounted on the window frame in advance and are unitized, so that the vehicle assembly site By simply fixing the window frame to the window opening, a double window can be efficiently configured. In addition, moisture and dust are mixed in the air layer between the outer window plate and the inner window plate by performing the unitization work of attaching the outer window plate and the inner window plate to the window frame in a clean working environment. Can be prevented. Therefore, according to the present invention, a high-quality double window can be efficiently formed, and quality improvement, shortening of construction period, and cost reduction can be achieved.
[0035]
Further, at the time of maintenance and inspection work, it is possible to replace each window frame on which the outer window plate and the inner window plate are mounted, and to replace only the outer window plate or the inner window plate, which is excellent in maintainability.
[Brief description of the drawings]
FIG. 1 is a side view of a railway vehicle provided with a vehicle double window structure according to an embodiment of the present invention.
FIG. 2 is a sectional view of a right peripheral portion of the side window shown in FIG. 1;
FIG. 3 is a sectional view of the upper and lower peripheral edges of the side window shown in FIG.
FIG. 4 is an enlarged sectional view showing a double window structure of a side window shown in FIG. 2;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Window frame, 2 ... Outer window plate, 3 ... Inner window plate, 4 ... Set screw, 5 ... Outer frame, 6 ... Elastic material, 7 ... Set screw, 8 ... Inner frame, 9 ... Elastic material, 10 ... Stop Screws, 11: Spacer, 12: Air layer, 13: Packing, 14: Seal stop, 15: Coating layer, C1 to C8: Sealing material (caulking material), T: Railway vehicle, W: Side window.

Claims

A window frame detachably fixed to the window opening of the vehicle, an outer window plate detachably mounted on an outer surface side of the window frame in advance, and a detachably mounted inner window side of the window frame in advance. A double window structure for a vehicle, comprising: an inner window plate.

The one of the outer window plate and the inner window plate is formed of a transparent resin plate, the other is formed of double-glazed glass, and an air layer is formed between the two. Double window structure for vehicles.

A peripheral portion of the outer window plate is sandwiched between the window frame and an outer frame detachably fixed to an outer surface of the window frame via an elastic material, and a peripheral portion of the inner window plate is formed of the window frame and the inner surface thereof. Between the outer window plate, the window frame, and the outer frame, and between the outer window plate, the window frame, and the outer frame, and the inner window plate, the window frame, and the inner frame. The double window structure for a vehicle according to claim 1 or 2, wherein a space between the two windows is hermetically sealed by a sealing material.