JP2005016089A

JP2005016089A - Curtain wall

Info

Publication number: JP2005016089A
Application number: JP2003180497A
Authority: JP
Inventors: Hiromitsu Kaminaga; 裕光神永; Hiroki Ono; 浩樹大野
Original assignee: YKK AP Inc
Current assignee: YKK AP Inc
Priority date: 2003-06-25
Filing date: 2003-06-25
Publication date: 2005-01-20
Anticipated expiration: 2023-06-25
Also published as: JP4039568B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a curtain wall capable of preventing the sill from being curvedly deformed downward due to the weight of glass with avoiding action of the glass weight on the sill. <P>SOLUTION: The curtain wall has a window section 3 having a glass 5 put on a frame 4, a glass supporting member 18 is provided to the sill 7 of the frame 4, the glass supporting member 18 is fixed to a mounting member 2 mounted to a skeleton 1, and the glass weight is supported by the skeleton 1 through the glass supporting member 18 and mounting member 2 to avoid its action on the sill 4. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、ユニット式や方立式などの枠にガラスを装着した窓部を備えたカーテンウオールに関する。
【０００２】
【従来の技術】
特許文献１、特許文献２に、枠にガラスを装着した窓部を備えたカーテンウオールが開示されている。
特許文献１に開示されたカーテンウオールは、枠を形成する下枠（無目の上部）の室内側部にガラス支持部材を設け、このガラス支持部材でガラスを支持し、その下枠の室内側部を建物躯体に取付けるようにしてある。
特許文献２に開示されたカーテンウオールは、枠を形成する下枠（無目の上部）の室外側部に支持体を室外側に突出して取付け、この支持体でガラスを支持し、その下枠の室内側部を建物躯体に取付けるようにしてある。
【０００３】
【特許文献１】
実開昭６０−８４６８９号公報
【特許文献２】
特開平８−２７９３０号公報
【０００４】
【発明が解決しようとする課題】
前述の各カーテンウオールによれば、ガラスの重量を、ガラス支持部材、支持体で下枠の室内側部で支持しているから、下枠の室外側部にはガラス重量が作用せず、下枠を、室内側部と室外側部を断熱材で連結した断熱形材とした場合に好適である。
しかしながら、ガラス重量は下枠の室内側部で支持するので、その下枠の剛性を高くしなければ、下枠が下向きに湾曲変形するから、下枠の見付け寸法を大きくして剛性を高くし、下枠が下向きに湾曲変形しないようにする必要がある。
【０００５】
本発明は、前述の課題に鑑みなされたもので、その目的は、ガラスの重量が下枠に作用しないようにして下枠がガラス重量で下向きに湾曲変形しないようにしたカーテンウオールを提供することである。
【０００６】
【課題を解決するための手段】
第１の発明は、躯体に取付用部材を設け、この取付用部材に枠を設け、その枠にガラスを装着した窓部を備えたカーテンウオールにおいて、
前記枠を形成する下枠に、ガラス重量を支持するガラス支持部材を、当該下枠とは別体で設け、このガラス支持部材はガラス下端部を支持するとともに室内側において前記取付用部材に固着したことを特徴とするカーテンウオールである。
【０００７】
第２の発明は、第１の発明において下枠は、室外側ガラス装着部と室内側中空部を有し、かつ、その室内側中空部は、室外側ガラス装着部に向けて開口した開口部を有し、
ガラス支持部材は、前記室外側ガラス装着部に設けられる室外側部材と前記室内側中空部に嵌合して取付けられる室内側部材を備え、その室外側部材の室内側部分が前記開口部を通して室内側部材に連結されており、
前記室内側部材が取付用部材に固着されているカーテンウオールである。
【０００８】
【作用】
第１の発明によれば、ガラス重量はガラス支持部材、取付用部材を介して躯体で支持され、そのガラス重量は下枠に作用しないので、下枠がガラス重量で下向きに湾曲変形することがない。
よって、ガラス重量が大きくとも下枠の見付け寸法を小さくできる。
【０００９】
第２の発明によれば、下枠の室内側中空部に室内側部材を嵌合して取付け、この後に室外側部材を開口部から室内側部材に連結してガラス支持部材とすることができるので、室内側中空部を有する下枠にガラス支持部材を取付けてガラス重量が下枠に作用しないようにできる。
【００１０】
【発明の実施の形態】
図１、図２、図３に示すように、躯体１に固着した取付用部材２に、複数の窓部３を取付けてカーテンウオールを形成している。
前記窓部３は、枠４にガラス５を装着したもので、この実施の形態では上枠６と下枠７と左右の縦枠８を方形枠状に連結して枠４としてあり、ユニット式のカーテンウオールである。
これに限ることはなく、左右の方立間に無目（上枠、下枠）を連結して枠を形成した方立式のカーテンウオールであっても良い。
この実施の形態では、図２、図３に示すように枠４よりも室外側に縦化粧材９、横化粧材１０が取付けてある。なお、図１には、この縦化粧材９、横化粧材１０が図示を省略してある。
【００１１】
この実施の形態では下の階の床スラブ１１を支持する鉄骨１２と上の階の床スラブ１３を支持する鉄骨１４で躯体１を形成し、その上下の鉄骨１２，１４に亘って取付縦材１５、例えばスチール縦材が面内方向に間隔を置いて複数取付けてあり、この隣接した取付縦材１５間に亘って取付横材１６と横つなぎ材１７が連結され、これによって取付用部材２としてある。
前記取付横材１６に枠４を形成する上枠６、下枠７が取付けてある。
これは、図示の部分が吹き抜けとなって下の階の床スラブ１１と上の階の床スラブ１３の高さが２階分に相当する高さであるから、取付縦材１５を取付けると共に、取付横材１６を連結して補強したものであって、通常の一階相当の高さの場合には取付縦材１５、取付横材１６は不要で、各鉄骨１２，１４に取付用部材、例えば複数のファスナーをそれぞれ固着し、この取付用部材に上枠６、下枠７又は縦枠８の上下部分を連結すれば良い。
つまり、枠４は取付用部材（前述の取付縦材１５，取付横材１６、又はファスナー）によって鉄骨１２，１４（つまり、躯体１）に取付ければ良い。
【００１２】
図４に示すように、下枠７はガラス支持部材１８を備え、このガラス支持部材１８は前述の取付用部材２、例えば取付横材１６に固着されている。このガラス支持部材１８は取付横材１６、取付縦材１５がない場合には前述のファスナーに固着すれば良い。
つまり、ガラス支持部材１８を、躯体１に設けた取付用部材２に固着し、そのガラス支持部材１８に作用するガラス重量を建物躯体１で直接支持して下枠７にガラス重量が作用しないようにすれば良い。
好ましくは、ガラス支持部材１８の室外側部でガラス５を支持し、その室内側部を取付用部材２を介して建物躯体１に固着する。
【００１３】
このようにすることで、下枠７がガラス重量で下向きに湾曲変形することがないので、ガラス重量が大であっても、その下枠７の見付け寸法を大きくする必要がない。
【００１４】
次に、各部材の具体形状の一例を説明する。
図４と図５に示すように、取付縦材１５は矩形断面の長尺材で、その室外側寄りに取付横材１６が固着され、室内側寄りに横つなぎ材１７が連結してある。
前記取付横材１６は縦板２０と横板２１で断面Ｔ字形状の長尺材で、その横板２１が固着手段で取付縦材１５に固着してある。
例えば、横板２１の上下面にブラケット２２をボルト、ナット２３でそれぞれ固着し、この各ブラケット２２を取付縦板１５にボルト、ナット２４で固着してある。
この実施の形態では、取付縦板１５の両面にブラケット２２がそれぞれボルト・ナット２４で固着してあると共に、その各ブラケット２２は固着した後に溶接してある。
前記取付横材１６はカバー材２５で被覆され、前述のブラケット２２、取付横材１６が室内側から見えないようにしてある。
【００１５】
前記上枠６は、取付横材１６の縦板２０下部に固着される。例えば、縦板２０の下部に形成した下部大径孔２６を挿通したボルト２７、ナット２８で熱伸び対応できるように固着してある。
この実施の形態では、上枠６は室外側ガラス装着部６ａと室内側中空部６ｂと室内側面６ｃに開口したあり溝６ｄを有し、そのあり溝６ｄにボルト２７が装着してある。
前記上枠６の上面６ｅには室外側シール材２９、例えばレインバリアと室内側シール材３０、例えばウインドバリアがそれぞれ上向きに装着してある。
【００１６】
前記下枠７は室外側ガラス装着部７ａと室内側中空部７ｂを有し、後述するように前記縦板２０の上部に固着される。
前記下枠７の下面７ｃには室外側シール材３１、例えばレインバリアと室内側シール材３２、例えばウインドバリアがそれぞれ下向きに装着してある。
この室外側シール材３１、室内側シール材３２は上記上枠６の室外側シール材２９、室内側シール材３０にそれぞれ圧接し、各シール材と上枠６の上面６ｅと下枠７の下面７ｃとの間に空間部３３を形成している。
この空間部３３は下枠７の室内側中空部７ｂを通して大気に開口して大気と等圧としてある。
例えば、下枠７の下面７ｃにおける室外側ガラス装着部７ａに形成した第１孔３４、室内側中空部７ｂを形成する室外側縦壁７ｄに形成した第２孔３５、下面７ｃにおける室内側中空部７ｂに形成した第３孔３６で大気に開口している。
【００１７】
このように、空間部３３を下枠７の室内側中空部７ｂを通して大気に開口したので、各室外側シール材２９，３１の圧接部に隙間を形成する必要がなく、シール性が向上する。
なお、図４においては下枠７の室外側寄りにレインバリア３７が装着してあり、このレインバリア３７が上枠６の上面６ｅに圧接しているが、このレインバリア３７は左右の下枠７で不連続となっているので、第１孔３４が大気に開口する。
図４において、第１・第２・第３孔３４，３５，３６は面内方向に同一位置となるように図示してあるが、これに限ることはなく、面内方向に位置がずれていることが好ましい。
【００１８】
前記縦枠８は図５に示すように、室外側シール材３８と室内側シール材３９が装着され、左右に隣接した枠４の縦枠８相互の室外側シール材３８、室内側シール材３９相互が圧接する。
前記縦化粧材９は、縦枠８の室外側ガラス装着部８ａを形成する押縁８ｂに一体的に設けてある。
前記横化粧材１０は図４に示すように上枠６にブラケット１０ａで取付けてある。
【００１９】
前記カバー材２５は上横板２５ａと縦板２５ｂと下横板２５ｃで断面コ字形状の長尺材で、その上横板２５ｃが下枠７の室内側面７ｅから室内側に突出した突片４０にビス４１で固着してある。
前記縦板２０の下部に係止片４２がビス４３で固着され、この係止片４２に下横板２５ｃの係止片４４が係止している。
【００２０】
前記ガラス支持部材１８は図１に示すように下枠７の左右両側寄りにそれぞれ取付けてある。このガラス支持部材１８は下枠７の全長に亘って取付けても良いし、三ヶ所以上の位置に取付けるようにしても良い。
前記ガラス支持部材１８は、図６、図７、図８に示すように、室外側部材５０と室内側部材６０を備えている。
前記室外側部材５０は、ガラス５の重量を支持し、前記室内側部材６０は下枠７の室内側中空部７ｂに嵌合して取付けられる。前記室外側部材５０の室内側部分が下枠７の室外側縦壁７ｄに形成した開口部１９から室内側中空部７ｂ内に突出し、かつ室内側部材６０の室外側部分に連結される。前記開口部１９は室内側中空部７ｂを室外側ガラス装着部７ａに向けて開口している。
【００２１】
具体的には、前記室外側部材５０は、下枠７の室外側ガラス装着部７ａに接するガラス支持部５１と、このガラス支持部５１の室内側に一体的に設けた連結部５２と、前記ガラス支持部５１に設けたセッティングロック５３を備え、その連結部５２が前記開口部１９から下枠７の室内側中空部７ｂ内に突出するようにしてある。
この連結部５２にはボルト５４が挿通する室内外側方向に貫通した透孔５５が形成してある。
【００２２】
前記室内側部材６０は、下枠７の室内側中空部７ｂに長手方向からスライドして嵌合される断面形状で、室外側連結部、例えば室外側面６０ａに開口した連結用凹部６１と、左右両端面６０ｂに開口した孔６２と、室内側面６０ｃから孔６２に開口した透孔６３を有する。
前記孔６２にはナット部材６４が挿入され、このナット部材６４のねじ孔６５にボルト６６を透孔６３から螺合するようにしてある。
前記連結用凹部６１に前記連結部５２が室外側から嵌合され、その底部にはねじ孔６７が形成され、このねじ孔６７に前記ボルト５４が螺合する。
前記室内側面６０ｃには透孔６３を囲むリング形状のシール材装着溝６８が形成され、このシール材装着溝６８にシール材６９が装着される。
【００２３】
前記ボルト６６は、取付横材１６の縦板２０の上部に形成した透孔７０、下枠７の室内側縦板に形成した室内側中空部７ｂに開口した透孔７１、室内側部材６０の透孔６３を挿通してナット部材６４のねじ孔６５に螺合され、室内側部材６０を下枠７とともに取付横材１６（つまり、取付用部材２）に固定する。
これとともに、前記シール材６９が下枠７の室内側中空部７ｂにおける室内側内面７ｆに圧着し、室内側部材６０の室内側面６０ｃと下枠７の前述の室内側内面７ｆとの間から、室内側中空部７ｂ内の空気が透孔７１，７０に流通しないように気密している。
【００２４】
前記室内側部材６０の孔６２よりもナット部材６４が短く、この孔６２にナット部材６４を挿入した後に、その孔６２の両端部をシール材７２でそれぞれ閉塞し、室内側中空部７ｂ内の空気が孔６２内に流入しないようにしてある。
このようであるから、下枠７の室内側中空部７ｂ内の空気が、孔６２、透孔６３、透孔７１，７０を通って流通することがない。
よって、上枠６と下枠７との間の空間部３３を、下枠７の室内側中空部７ｂを通して大気に開口した場合に、その室内側中空部７ｂに流入した大気がボルト６６を挿通するための透孔６３，７０，７１を通して室内側に流れることがない。
【００２５】
次に、ガラス支持部材１８の取付けの仕方を説明する。
まず、室内側部材６０の孔６２にナット部材６４を挿入し、両端部にシール材７２を設ける。
枠組みする以前に、前述の室内側部材６０を下枠７の室内側中空部７ｂ内に挿入して所定位置（開口部１９と連結用凹部６１が対向する位置）とする。
室外側部材５０を室外側ガラス装着部７ａに位置させると共に、連結部５２を開口部１９から室内側部材６０の連結用凹部６１に係合連結し、ボルト５４を螺合して室外側部材５０と室内側部材６０を締付け固定する。
前記開口部１９と連結部５２との間にシール材７３を装着して気密、水密する。
室外側部材５０のガラス支持部５１にセッティングブロック５３を介在してガラス５を載置して取付け、ガラス下端部を支持する。
【００２６】
前記室外側部材５０と室内側部材６０は一体としても良い。この場合には下枠７の室内側中空部７ｂの室内側縦壁にも開口部を形成し、下枠７の室内側から挿入して取付ける。
また、下枠７は室内側中空部７ｂを備えていない形状としても良い。
【００２７】
【発明の効果】
請求項１に係る発明によれば、ガラス重量はガラス支持部材、取付用部材を介して躯体で支持され、そのガラス重量は下枠に作用しないので、下枠がガラス重量で下向きに湾曲変形することがない。
よって、ガラス重量が大きくとも下枠の見付け寸法を小さくできる。
【００２８】
請求項２に係る発明によれば、下枠の室内側中空部に室内側部材を嵌合して取付け、この後に室外側部材を開口部から室内側部材に連結してガラス支持部材とすることができるので、室内側中空部を有する下枠にガラス支持部材を取付けてガラス重量が下枠に作用しないようにできる。
【図面の簡単な説明】
【図１】本発明の実施の形態を示すカーテンウオールの一部正面図である。
【図２】図１の縦断面図である。
【図３】図１の横断面図である。
【図４】図１のＡ−Ａ拡大詳細断面図である。
【図５】図１のＢ−Ｂ拡大詳細断面図である。
【図６】図１のＣ−Ｃ拡大詳細断面図である。
【図７】図６のＤ−Ｄ断面図である。
【図８】ガラス支持部材の分解斜視図である。
【符号の説明】
１…躯体、２…取付用部材、３…窓部、４…枠、５…ガラス、６…上枠、７…下枠、７ａ…室外側ガラス装着部、７ｂ…室内側中空部、１８…ガラス支持部材、１９…開口部、５０…室外側部材、６０…室内側部材。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a curtain wall including a window portion in which glass is mounted on a frame such as a unit type or a vertical type.
[0002]
[Prior art]
Patent Documents 1 and 2 disclose a curtain wall provided with a window portion in which glass is mounted on a frame.
The curtain wall disclosed in Patent Document 1 is provided with a glass support member on the indoor side portion of the lower frame (eyeless upper portion) forming the frame, and supports the glass with this glass support member. The part is attached to the building frame.
In the curtain wall disclosed in Patent Document 2, a support body is attached to the outdoor side of the lower frame (the upper part of the eye) forming a frame so as to project outside, and the glass is supported by this support body. The indoor side of is attached to the building frame.
[0003]
[Patent Document 1]
Japanese Utility Model Publication No. 60-8489 [Patent Document 2]
JP-A-8-27930 [0004]
[Problems to be solved by the invention]
According to each of the curtain walls described above, the glass weight is supported by the glass support member and the support on the indoor side of the lower frame, so that the glass weight does not act on the outdoor side of the lower frame. It is suitable when the frame is a heat insulating shape member in which the indoor side portion and the outdoor side portion are connected by a heat insulating material.
However, since the glass weight is supported by the indoor side of the lower frame, unless the rigidity of the lower frame is increased, the lower frame will be bent and deformed downward. It is necessary to prevent the lower frame from being bent and deformed downward.
[0005]
The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a curtain wall in which the weight of the glass does not act on the lower frame so that the lower frame is not curved and deformed downward by the glass weight. It is.
[0006]
[Means for Solving the Problems]
The first invention provides a mounting member on the housing, a frame is provided on the mounting member, and a curtain wall having a window portion on which glass is attached to the frame,
A glass support member for supporting the weight of the glass is provided separately from the lower frame on the lower frame forming the frame, and the glass support member supports the lower end of the glass and is fixed to the mounting member on the indoor side. A curtain wall characterized by
[0007]
According to a second invention, in the first invention, the lower frame has an outdoor glass mounting portion and an indoor hollow portion, and the indoor hollow portion opens toward the outdoor glass mounting portion. Have
The glass support member includes an outdoor member provided in the outdoor glass mounting portion and an indoor member fitted and attached to the indoor hollow portion, and the indoor portion of the outdoor member is passed through the opening. Connected to the inner member,
The indoor wall member is a curtain wall fixed to a mounting member.
[0008]
[Operation]
According to the first invention, the glass weight is supported by the housing via the glass support member and the mounting member, and the glass weight does not act on the lower frame, so that the lower frame can be bent and deformed downward by the glass weight. Absent.
Therefore, even if the glass weight is large, the size of the bottom frame can be reduced.
[0009]
According to the second invention, the indoor side member can be fitted and attached to the indoor side hollow portion of the lower frame, and thereafter, the outdoor side member can be connected to the indoor side member from the opening to form the glass support member. Therefore, the glass support member can be attached to the lower frame having the indoor side hollow portion so that the glass weight does not act on the lower frame.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIGS. 1, 2, and 3, a plurality of window portions 3 are attached to an attachment member 2 fixed to a housing 1 to form a curtain wall.
The window portion 3 is obtained by mounting a glass 5 on a frame 4. In this embodiment, the upper frame 6, the lower frame 7, and the left and right vertical frames 8 are connected in a rectangular frame shape to form a frame 4. Curtain wall.
The present invention is not limited to this, and it may be a vertical curtain wall in which a frame is formed by connecting an invisible eye (upper frame, lower frame) between left and right verticals.
In this embodiment, as shown in FIGS. 2 and 3, the vertical decorative material 9 and the horizontal decorative material 10 are attached to the outdoor side of the frame 4. In FIG. 1, the vertical decorative material 9 and the horizontal decorative material 10 are not shown.
[0011]
In this embodiment, a frame 1 is formed by a steel frame 12 that supports a floor slab 11 of a lower floor and a steel frame 14 that supports a floor slab 13 of an upper floor, and a mounting longitudinal member is formed across the upper and lower steel frames 12, 14. 15. For example, a plurality of steel vertical members are attached at intervals in the in-plane direction, and the attachment cross member 16 and the horizontal connecting member 17 are connected between the adjacent attachment vertical members 15, thereby the attachment member 2. It is as.
An upper frame 6 and a lower frame 7 that form the frame 4 are attached to the mounting cross member 16.
Since the height of the floor slab 11 on the lower floor and the floor slab 13 on the upper floor is the height corresponding to the second floor, the part shown in the figure is the atrium, The mounting cross member 16 is connected and reinforced, and in the case of a normal height equivalent to the first floor, the mounting vertical member 15 and the mounting cross member 16 are not necessary, and each steel frame 12, 14 has a mounting member, For example, a plurality of fasteners may be fixed to each other, and the upper and lower portions of the upper frame 6, the lower frame 7, or the vertical frame 8 may be connected to the mounting member.
That is, the frame 4 may be attached to the steel frames 12 and 14 (that is, the casing 1) by means of an attachment member (the above-described attachment vertical member 15, attachment transverse member 16, or fastener).
[0012]
As shown in FIG. 4, the lower frame 7 includes a glass support member 18, and the glass support member 18 is fixed to the mounting member 2, for example, the mounting cross member 16. This glass support member 18 may be fixed to the above-described fastener when the mounting cross member 16 and the mounting vertical member 15 are not provided.
That is, the glass support member 18 is fixed to the mounting member 2 provided in the housing 1, and the glass weight acting on the glass support member 18 is directly supported by the building housing 1 so that the glass weight does not act on the lower frame 7. You can do it.
Preferably, the glass 5 is supported by the outdoor portion of the glass support member 18, and the indoor side portion is fixed to the building housing 1 via the mounting member 2.
[0013]
By doing in this way, since the lower frame 7 does not bend and deform downward by the glass weight, it is not necessary to increase the size of the lower frame 7 even if the glass weight is large.
[0014]
Next, an example of the specific shape of each member will be described.
As shown in FIGS. 4 and 5, the attachment vertical member 15 is a long material having a rectangular cross section, and an attachment cross member 16 is fixed to the outside of the room and a horizontal connecting member 17 is connected to the inside of the room.
The mounting cross member 16 is a long plate having a T-shaped cross section composed of a vertical plate 20 and a horizontal plate 21, and the horizontal plate 21 is fixed to the mounting vertical member 15 by fixing means.
For example, the bracket 22 is fixed to the upper and lower surfaces of the horizontal plate 21 with bolts and nuts 23, and each bracket 22 is fixed to the mounting vertical plate 15 with bolts and nuts 24.
In this embodiment, the brackets 22 are fixed to both surfaces of the mounting vertical plate 15 by bolts and nuts 24, and the brackets 22 are welded after being fixed.
The mounting cross member 16 is covered with a cover member 25 so that the bracket 22 and the mounting cross member 16 are not visible from the indoor side.
[0015]
The upper frame 6 is fixed to the lower part of the vertical plate 20 of the mounting cross member 16. For example, the bolts 27 and nuts 28 inserted through the lower large-diameter holes 26 formed in the lower part of the vertical plate 20 are fixed so as to be able to cope with the thermal expansion.
In this embodiment, the upper frame 6 has a dovetail groove 6d opened in the outdoor side glass mounting portion 6a, the indoor side hollow portion 6b, and the indoor side surface 6c, and a bolt 27 is mounted in the dovetail groove 6d.
On the upper surface 6e of the upper frame 6, an outdoor side sealing material 29, for example, a rain barrier and an indoor side sealing material 30, for example, a wind barrier are respectively mounted upward.
[0016]
The lower frame 7 has an outdoor glass mounting portion 7a and an indoor hollow portion 7b, and is fixed to the upper portion of the vertical plate 20 as will be described later.
On the lower surface 7c of the lower frame 7, an outdoor sealing material 31, for example, a rain barrier and an indoor sealing material 32, for example, a wind barrier are mounted downward.
The outdoor-side sealing material 31 and the indoor-side sealing material 32 are in pressure contact with the outdoor-side sealing material 29 and the indoor-side sealing material 30 of the upper frame 6, respectively, and each sealing material and the upper surface 6 e of the upper frame 6 and the lower surface of the lower frame 7. The space part 33 is formed between 7c.
This space portion 33 is opened to the atmosphere through the indoor side hollow portion 7b of the lower frame 7 and has the same pressure as the atmosphere.
For example, the 1st hole 34 formed in the outdoor side glass mounting part 7a in the lower surface 7c of the lower frame 7, the 2nd hole 35 formed in the outdoor side vertical wall 7d which forms the indoor side hollow part 7b, the indoor side hollow in the lower surface 7c A third hole 36 formed in the portion 7b opens to the atmosphere.
[0017]
Thus, since the space portion 33 is opened to the atmosphere through the indoor side hollow portion 7 b of the lower frame 7, it is not necessary to form a gap in the pressure contact portions of the outdoor side sealing materials 29 and 31, and the sealing performance is improved.
In FIG. 4, a rain barrier 37 is mounted on the outer side of the lower frame 7, and this rain barrier 37 is in pressure contact with the upper surface 6 e of the upper frame 6. 7, the first hole 34 opens to the atmosphere.
In FIG. 4, the first, second, and third holes 34, 35, and 36 are illustrated so as to be in the same position in the in-plane direction, but the present invention is not limited to this, and the positions are shifted in the in-plane direction. Preferably it is.
[0018]
As shown in FIG. 5, the vertical frame 8 is provided with an outdoor sealing material 38 and an indoor sealing material 39, and the outdoor sealing material 38 and the indoor sealing material 39 of the vertical frames 8 of the frames 4 adjacent to each other on the left and right. The two are in pressure contact.
The vertical decorative material 9 is integrally provided on the pressing edge 8b forming the outdoor glass mounting portion 8a of the vertical frame 8.
The transverse decorative material 10 is attached to the upper frame 6 with a bracket 10a as shown in FIG.
[0019]
The cover member 25 is a long material having a U-shaped cross section with an upper horizontal plate 25a, a vertical plate 25b, and a lower horizontal plate 25c, and the upper horizontal plate 25c protrudes from the indoor side surface 7e of the lower frame 7 to the indoor side. 40 is fixed with screws 41.
A locking piece 42 is fixed to the lower portion of the vertical plate 20 with a screw 43, and a locking piece 44 of the lower horizontal plate 25c is locked to the locking piece 42.
[0020]
The glass support members 18 are attached to the left and right sides of the lower frame 7 as shown in FIG. The glass support member 18 may be attached over the entire length of the lower frame 7 or may be attached at three or more positions.
As shown in FIGS. 6, 7, and 8, the glass support member 18 includes an outdoor member 50 and an indoor member 60.
The outdoor member 50 supports the weight of the glass 5, and the indoor member 60 is fitted and attached to the indoor hollow portion 7 b of the lower frame 7. The indoor side portion of the outdoor member 50 projects into the indoor hollow portion 7b from the opening 19 formed in the outdoor vertical wall 7d of the lower frame 7 and is connected to the outdoor portion of the indoor member 60. The opening 19 opens the indoor hollow portion 7b toward the outdoor glass mounting portion 7a.
[0021]
Specifically, the outdoor member 50 includes a glass support 51 in contact with the outdoor glass mounting portion 7a of the lower frame 7, a connecting portion 52 provided integrally on the indoor side of the glass support 51, A setting lock 53 provided on the glass support portion 51 is provided, and the connecting portion 52 projects from the opening portion 19 into the indoor hollow portion 7b of the lower frame 7.
The connecting portion 52 is formed with a through-hole 55 penetrating in the indoor outside direction through which the bolt 54 is inserted.
[0022]
The indoor side member 60 has a cross-sectional shape that is slid and fitted into the indoor side hollow portion 7b of the lower frame 7 from the longitudinal direction. The indoor side member 60 includes a connection concave portion 61 that opens to the outdoor side surface 60a, for example, It has a hole 62 opened to both end surfaces 60b and a through-hole 63 opened to the hole 62 from the indoor side surface 60c.
A nut member 64 is inserted into the hole 62, and a bolt 66 is screwed into the screw hole 65 of the nut member 64 from the through hole 63.
The connecting portion 52 is fitted into the connecting recess 61 from the outdoor side, and a screw hole 67 is formed at the bottom thereof, and the bolt 54 is screwed into the screw hole 67.
A ring-shaped sealing material mounting groove 68 surrounding the through hole 63 is formed in the indoor side surface 60c, and a sealing material 69 is mounted in the sealing material mounting groove 68.
[0023]
The bolt 66 includes a through hole 70 formed in the upper part of the vertical plate 20 of the mounting cross member 16, a through hole 71 opened in the indoor side hollow portion 7 b formed in the indoor side vertical plate of the lower frame 7, and the indoor side member 60. The through-hole 63 is inserted and screwed into the screw hole 65 of the nut member 64 to fix the indoor side member 60 together with the lower frame 7 to the mounting cross member 16 (that is, the mounting member 2).
At the same time, the sealing material 69 is crimped to the indoor side inner surface 7f of the indoor side hollow portion 7b of the lower frame 7, and from between the indoor side surface 60c of the indoor side member 60 and the above-described indoor side inner surface 7f of the lower frame 7, The air in the indoor hollow portion 7 b is airtight so as not to flow through the through holes 71 and 70.
[0024]
The nut member 64 is shorter than the hole 62 of the indoor side member 60, and after inserting the nut member 64 into the hole 62, both ends of the hole 62 are respectively closed by the sealing material 72, and the inside of the indoor side hollow part 7b is closed. Air is prevented from flowing into the hole 62.
Thus, the air in the indoor hollow portion 7 b of the lower frame 7 does not flow through the hole 62, the through hole 63, and the through holes 71 and 70.
Therefore, when the space portion 33 between the upper frame 6 and the lower frame 7 is opened to the atmosphere through the indoor hollow portion 7b of the lower frame 7, the air flowing into the indoor hollow portion 7b inserts the bolt 66. Therefore, the air does not flow into the room through the through holes 63, 70, 71.
[0025]
Next, how to attach the glass support member 18 will be described.
First, the nut member 64 is inserted into the hole 62 of the indoor side member 60, and the sealing material 72 is provided at both ends.
Before the frame is formed, the above-described indoor side member 60 is inserted into the indoor side hollow portion 7b of the lower frame 7 to obtain a predetermined position (a position where the opening 19 and the coupling recess 61 face each other).
The outdoor member 50 is positioned on the outdoor glass mounting portion 7a, and the connecting portion 52 is engaged and connected from the opening 19 to the connecting recess 61 of the indoor member 60, and the bolt 54 is screwed to engage the outdoor member 50. And the indoor side member 60 is fastened and fixed.
A sealing material 73 is mounted between the opening 19 and the connecting portion 52 to make it airtight and watertight.
The glass 5 is placed and attached to the glass support 51 of the outdoor member 50 with a setting block 53 interposed therebetween, and the lower end of the glass is supported.
[0026]
The outdoor side member 50 and the indoor side member 60 may be integrated. In this case, an opening is also formed in the indoor vertical wall of the indoor hollow portion 7b of the lower frame 7, and it is inserted and attached from the indoor side of the lower frame 7.
Moreover, the lower frame 7 is good also as a shape which is not provided with the indoor side hollow part 7b.
[0027]
【The invention's effect】
According to the first aspect of the present invention, the glass weight is supported by the housing via the glass support member and the mounting member, and the glass weight does not act on the lower frame, so the lower frame is bent and deformed downward by the glass weight. There is nothing.
Therefore, even if the glass weight is large, the size of the bottom frame can be reduced.
[0028]
According to the second aspect of the present invention, the indoor side member is fitted and attached to the indoor side hollow portion of the lower frame, and thereafter, the outdoor side member is connected to the indoor side member from the opening to form the glass support member. Therefore, it is possible to prevent the glass weight from acting on the lower frame by attaching the glass support member to the lower frame having the indoor hollow portion.
[Brief description of the drawings]
FIG. 1 is a partial front view of a curtain wall showing an embodiment of the present invention.
FIG. 2 is a longitudinal sectional view of FIG.
FIG. 3 is a cross-sectional view of FIG.
4 is an AA enlarged detailed cross-sectional view of FIG. 1; FIG.
FIG. 5 is an enlarged detailed cross-sectional view taken along the line BB of FIG.
6 is a detailed enlarged cross-sectional view taken along the line CC of FIG. 1;
7 is a cross-sectional view taken along the line DD of FIG.
FIG. 8 is an exploded perspective view of a glass support member.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Housing, 2 ... Mounting member, 3 ... Window part, 4 ... Frame, 5 ... Glass, 6 ... Upper frame, 7 ... Lower frame, 7a ... Outdoor glass mounting part, 7b ... Indoor side hollow part, 18 ... Glass supporting member, 19 ... opening, 50 ... outdoor side member, 60 ... indoor side member.

Claims

In a curtain wall provided with a mounting member on the housing, provided with a frame on the mounting member, and provided with a window portion mounted with glass on the frame,
A glass support member for supporting the weight of the glass is provided separately from the lower frame on the lower frame forming the frame, and the glass support member supports the lower end of the glass and is fixed to the mounting member on the indoor side. Curtain wall that is characterized by.

The lower frame has an outdoor glass mounting portion and an indoor hollow portion, and the indoor hollow portion has an opening that opens toward the outdoor glass mounting portion.
The glass support member includes an outdoor member provided in the outdoor glass mounting portion and an indoor member fitted and attached to the indoor hollow portion, and the indoor portion of the outdoor member is passed through the opening. Connected to the inner member,
The curtain wall according to claim 1, wherein the indoor side member is fixed to a mounting member.