JP7425671B2

JP7425671B2 - fittings

Info

Publication number: JP7425671B2
Application number: JP2020089290A
Authority: JP
Inventors: 康生脇谷; 綾一高見; 淳央福井; 憲宏若代
Original assignee: YKK AP Inc
Current assignee: YKK AP Inc
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2024-01-31
Anticipated expiration: 2040-05-22
Also published as: JP2021183777A

Description

本発明は、下枠の排水経路を介して排水する建具に関する。 The present invention relates to fittings that drain water through a drainage path in a lower frame.

建具の室内側では、結露等により、水が下枠の室内側の表面に付着して、下枠の上面に水が溜まることがある。そこで、従来、室内側に位置する樹脂下枠の凹部、及び、室外側に位置する金属下枠の排水路を介して、下枠の室内側から室外側に向かって排水する複合窓の排水構造が知られている（特許文献１参照）。 On the indoor side of the fittings, water may adhere to the indoor side surface of the lower frame due to dew condensation or the like, and water may accumulate on the upper surface of the lower frame. Therefore, in conventional composite window drainage structures, water is drained from the indoor side of the lower frame toward the outdoor side through a recess in the resin lower frame located on the indoor side and a drainage channel in the metal lower frame located on the outdoor side. is known (see Patent Document 1).

特許文献１に記載された従来の複合窓の排水構造において、樹脂下枠の凹部は、結露水を受け入れる排水溝（水受け溝）であり、底部に、排水ガイドが装着された開口を有している。結露水は、樹脂下枠の凹部に流れ込み、排水ガイドにより、金属下枠に向かって排水される。ところが、従来の複合窓の排水構造では、樹脂下枠の室内側で、凹部及び排水ガイドが露出しており、ごみが凹部及び排水ガイドに溜まり易く、ごみの清掃が行い難くなる虞がある。また、凹部から円滑に排水するために、凹部及び排水ガイドの頻繁な清掃が必要なこともある。樹脂下枠の凹部及び排水ガイドの露出に伴い、下枠の意匠性に影響が生じることも懸念される。 In the conventional composite window drainage structure described in Patent Document 1, the recess in the resin lower frame is a drainage groove (water receiving groove) that receives condensed water, and has an opening at the bottom to which a drainage guide is attached. ing. The condensed water flows into the recessed portion of the resin lower frame and is drained toward the metal lower frame by the drainage guide. However, in the conventional drainage structure of a composite window, the recess and the drainage guide are exposed on the indoor side of the resin lower frame, and dirt tends to accumulate in the recess and the drainage guide, making it difficult to clean the trash. Additionally, frequent cleaning of the recess and drainage guide may be necessary to ensure smooth drainage from the recess. There is also a concern that the design of the bottom frame may be affected due to the exposure of the recessed portion of the resin bottom frame and the drainage guide.

特許第３２５７９７３号公報Patent No. 3257973

本発明は、前記従来の問題に鑑みなされたもので、その目的は、建具の下枠の室内側から室外側に向かって効率的に排水するとともに、下枠の室内側で水受け溝の露出を抑制して、下枠の意匠性を向上させることである。 The present invention was made in view of the above-mentioned conventional problems, and its purpose is to efficiently drain water from the indoor side of the lower frame of the fittings toward the outdoor side, and to expose the water receiving groove on the indoor side of the lower frame. The objective is to improve the design of the lower frame by suppressing the

本発明は、障子を囲む枠体の下枠に、前記障子の下側及び室内側に位置する第１枠部と、前記障子の室内側に配置されて前記第１枠部の室内側で前記第１枠部に連結される第２枠部と、を有する建具であって、
前記第１枠部は、前記第２枠部の下側で前記第２枠部に沿って配置される溝部と、前記溝部から前記下枠の室外側まで連通する排水経路と、を有し、
前記第２枠部は、前記下枠の室内側で水を受ける水受け溝と、前記水受け溝から前記溝部に向かって排水する排水部と、前記水受け溝を覆う覆い部と、前記覆い部の上側から前記水受け溝に水を流入させる流入部と、室内側に突出するアングル部と、前記アングル部に取り付けられて前記アングル部を覆うカバー材と、を有し、
前記覆い部は、前記カバー材に形成され、
前記水受け溝は、前記アングル部に形成されて、前記覆い部との間に中空部を形成する建具である。 The present invention includes a first frame portion located on a lower side and an indoor side of the shoji in a lower frame of a frame surrounding the shoji , and a first frame portion located on the indoor side of the shoji and on the indoor side of the first frame portion. A fitting having a second frame connected to the first frame,
The first frame has a groove disposed below the second frame and along the second frame, and a drainage path communicating from the groove to the outdoor side of the lower frame,
The second frame portion includes a water receiving groove that receives water on the indoor side of the lower frame, a drainage portion that drains water from the water receiving groove toward the groove portion, a cover portion that covers the water receiving groove, and the cover. an inflow part that allows water to flow into the water receiving groove from the upper side of the part, an angle part that protrudes toward the indoor side, and a cover material that is attached to the angle part and covers the angle part ,
The cover portion is formed on the cover material,
The water receiving groove is a fitting that is formed in the angle part and forms a hollow part between it and the cover part .

本発明によれば、建具の下枠の室内側から室外側に向かって効率的に排水できるとともに、下枠の室内側で水受け溝の露出を抑制して、下枠の意匠性を向上させることができる。 According to the present invention, water can be efficiently drained from the indoor side of the lower frame of the fitting toward the outdoor side, and the exposure of the water receiving groove on the indoor side of the lower frame is suppressed, thereby improving the design of the lower frame. be able to.

本実施形態の建具の正面図である。It is a front view of fittings of this embodiment. 図１のＸ１－Ｘ１線で切断した本実施形態の建具の縦断面図である。FIG. 2 is a longitudinal cross-sectional view of the fitting of the present embodiment taken along the line X1-X1 in FIG. 1. FIG. 図１のＸ２－Ｘ２線で切断した本実施形態の建具の縦断面図である。FIG. 2 is a longitudinal cross-sectional view of the fitting of the present embodiment taken along the line X2-X2 in FIG. 1. FIG.

本発明の建具の一実施形態について、図面を参照して説明する。
本実施形態の建具は、建物の開口部に取り付けられて、建物の室内（屋内）と室外（屋外）の間に設置される。以下では、窓用の建具であるサッシ窓を例にとり、本実施形態の建具について説明する。 An embodiment of the fitting of the present invention will be described with reference to the drawings.
The fittings of this embodiment are attached to an opening of a building and installed between the indoors (indoors) and the outdoors (outdoors) of the building. In the following, the fittings of this embodiment will be explained by taking a sash window, which is a fitting for windows, as an example.

図１は、本実施形態の建具１の正面図であり、室外側からみた建具１の概略構成を示している。
図示のように、建具１は、開閉窓であり、開閉可能な障子２と、障子２を囲む枠体３を備えている。障子２は、パネル状の可動障子（パネル体）であり、枠体３の開口部３Ａに配置されている。障子２が室内外方向に開閉（移動）して、障子２により、枠体３の開口部３Ａが開閉される。 FIG. 1 is a front view of a fitting 1 according to the present embodiment, and shows a schematic configuration of the fitting 1 viewed from the outside of the room.
As illustrated, the fitting 1 is an opening/closing window, and includes a shoji 2 that can be opened and closed, and a frame 3 surrounding the shoji 2. The shoji 2 is a panel-shaped movable shoji (panel body), and is arranged in the opening 3A of the frame 3. The shoji 2 opens and closes (moves) indoors and outdoors, and the opening 3A of the frame 3 is opened and closed by the shoji 2.

なお、建物に設けた建具１を正面からみたときに、上下となる方向が上下方向であり、左右となる方向が左右方向である。図１では、上下方向は鉛直方向であり、左右方向は水平方向である。室内外方向は、建物に設けた建具１における室内外方向（屋内外方向）である。このように、建具１に関する方向は、建物に設けた状態での方向で特定する。また、建具１に関して室内側、室外側とは、建物に設けた状態での室内側、室外側である。 In addition, when the fittings 1 provided in a building are viewed from the front, the up-down direction is the up-down direction, and the left-right direction is the left-right direction. In FIG. 1, the up-down direction is the vertical direction, and the left-right direction is the horizontal direction. The indoor-outdoor direction is the indoor-outdoor direction (indoor-outdoor direction) of the fittings 1 provided in the building. In this way, the direction of the fitting 1 is specified based on the direction in which it is installed in a building. Further, the indoor side and the outdoor side of the fittings 1 refer to the indoor side and the outdoor side when installed in a building.

障子２は、方形状の框体１０と、框体１０内に配置されたパネル１１を有している。框体１０は、互いに組み合わされた４つの框１２～１５（上框１２、下框１３、一対の縦框１４、１５）を有している。框１２～１５は、框体１０を構成する框材であり、例えば、押出成形により形成された形材からなる。上框１２と下框１３は、框体１０の上下の横框であり、框体１０の上部と下部で左右方向（横方向）に沿って延びる。一対の縦框１４、１５は、框体１０の左右の側部で上下方向（縦方向）に沿って延びる。上框１２、下框１３、及び、左右の縦框１４、１５が枠組みされて、框１２～１５の端部同士が接続されている。パネル１１は、例えば、複数のガラス板を有する複層ガラスであり、框体１０に嵌め込まれている。 The shoji 2 has a rectangular frame body 10 and a panel 11 arranged within the frame body 10. The frame body 10 has four frames 12 to 15 (an upper frame 12, a lower frame 13, and a pair of vertical frames 14 and 15) that are combined with each other. The frames 12 to 15 are frame materials that constitute the frame body 10, and are made of, for example, extruded shapes. The upper stile 12 and the lower stile 13 are the upper and lower horizontal stile of the frame 10, and extend along the left-right direction (lateral direction) at the upper and lower parts of the frame 10. The pair of vertical frames 14 and 15 extend along the vertical direction (vertical direction) at the left and right sides of the frame body 10. The upper stile 12, the lower stile 13, and the left and right vertical stiles 14 and 15 are framed, and the ends of the stile 12 to 15 are connected to each other. The panel 11 is, for example, double-glazed glass having a plurality of glass plates, and is fitted into the frame 10.

枠体３は、方形状の開口枠（窓枠）であり、建物の開口部に設置される。また、枠体３は、互いに組み合わされた４つの枠２０～２３（上枠２０、下枠２１、一対の縦枠２２、２３）を有し、４つの枠２０～２３により、方形状の開口部３Ａを形成する。枠２０～２３は、枠体３を構成する枠材であり、例えば、押出成形により形成された形材からなる。上枠２０と下枠２１は、枠体３の上下の横枠であり、枠体３の上部と下部で左右方向に沿って延びる。一対の縦枠２２、２３は、枠体３の左右の側部で上下方向に沿って延びる。上枠２０、下枠２１、及び、左右の縦枠２２、２３が枠組みされて、枠２０～２３の端部同士が接続されている。 The frame body 3 is a rectangular opening frame (window frame), and is installed in an opening of a building. Further, the frame body 3 has four frames 20 to 23 (an upper frame 20, a lower frame 21, a pair of vertical frames 22, 23) combined with each other, and the four frames 20 to 23 form a rectangular opening. A portion 3A is formed. The frames 20 to 23 are frame members constituting the frame body 3, and are made of, for example, extruded shapes. The upper frame 20 and the lower frame 21 are upper and lower horizontal frames of the frame 3, and extend along the left-right direction at the upper and lower parts of the frame 3. The pair of vertical frames 22 and 23 extend along the vertical direction on the left and right sides of the frame 3. The upper frame 20, the lower frame 21, and the left and right vertical frames 22 and 23 are framed, and the ends of the frames 20 to 23 are connected to each other.

図２は、図１のＸ１－Ｘ１線で切断した本実施形態の建具１の縦断面図である。図２では、枠体３の下枠２１を実線で示し、下框１３を含む障子２の下側部分を二点鎖線で示している。
図示のように、下枠２１は、下枠２１のベース部である第１枠部３０と、第１枠部３０の室内側で第１枠部３０に連結される第２枠部４０を有している。第１枠部３０は、下枠２１の室外側枠部であり、建物の下額縁４よりも室外側に配置される。下額縁４は、建物の開口部の下縁部に設けられる額縁であり、左右方向に延びる。第２枠部４０は、下枠２１の室内側枠部であり、障子２の室内側及び下額縁４の上側に配置される。 FIG. 2 is a longitudinal sectional view of the fitting 1 of this embodiment taken along the line X1-X1 in FIG. In FIG. 2, the lower frame 21 of the frame body 3 is shown by a solid line, and the lower part of the shoji 2 including the lower stile 13 is shown by a two-dot chain line.
As illustrated, the lower frame 21 includes a first frame portion 30 that is a base portion of the lower frame 21, and a second frame portion 40 that is connected to the first frame portion 30 on the indoor side of the first frame portion 30. are doing. The first frame portion 30 is an outdoor frame portion of the lower frame 21, and is arranged on the outdoor side of the building than the lower frame 4 of the building. The lower frame 4 is a frame provided at the lower edge of the opening of the building, and extends in the left-right direction. The second frame portion 40 is an indoor frame portion of the lower frame 21 and is arranged on the indoor side of the shoji 2 and above the lower frame 4.

第１枠部３０は、建物の躯体に固定される下枠本体であり、障子２の下側及び室内側に位置している。第２枠部４０は、第１枠部３０の室内側において第１枠部３０に装着される装着枠部であり、第１枠部３０の室内側の露出部分を覆う。障子２の室内側及び下枠２１の室内側では、第１枠部３０が第２枠部４０により遮蔽されて、下枠２１の第２枠部４０が露出する。ここでは、第１枠部３０は、金属（例えば、アルミニウム合金）からなる金属枠部であり、第２枠部４０は、合成樹脂からなる樹脂枠部である。従って、建具１は、複合サッシ窓であり、複合枠である枠体３の下枠２１に、金属製の第１枠部３０と合成樹脂製の第２枠部４０を有している。 The first frame part 30 is a lower frame main body fixed to the building frame, and is located below the shoji 2 and on the indoor side. The second frame portion 40 is a mounting frame portion that is attached to the first frame portion 30 on the indoor side of the first frame portion 30, and covers the exposed portion of the first frame portion 30 on the indoor side. On the indoor side of the shoji 2 and the indoor side of the lower frame 21, the first frame part 30 is shielded by the second frame part 40, and the second frame part 40 of the lower frame 21 is exposed. Here, the first frame part 30 is a metal frame part made of metal (eg, aluminum alloy), and the second frame part 40 is a resin frame part made of synthetic resin. Therefore, the fitting 1 is a composite sash window, and has a first frame part 30 made of metal and a second frame part 40 made of synthetic resin in the lower frame 21 of the frame body 3, which is a composite frame.

第１枠部３０は、板状の見込み部３１と、見込み部３１の下側に位置する下側部（室外側壁部３２、水切り部３３、室外側中空部３４）と、見込み部３１の上側に位置する上側部（立ち上がり部３５、上片部３６、室内側中空部３７）と、見込み部３１の室内側に位置する室内側部（溝部３８）と、排水経路５０を有している。見込み部３１は、下枠２１の見込み方向（室内外方向）に沿って形成されて、障子２の下側に配置される。室外側壁部３２、水切り部３３、及び、室外側中空部３４は、障子２の下側に配置され、立ち上がり部３５、上片部３６、室内側中空部３７、及び、溝部３８は、障子２の室内側に配置される。 The first frame part 30 includes a plate-shaped prospective part 31 , a lower part (outdoor side wall part 32 , draining part 33 , outdoor hollow part 34 ) located below the prospective part 31 , and an upper side of the prospective part 31 . It has an upper part (rising part 35, upper piece part 36, indoor hollow part 37) located on the inside, an indoor part (groove part 38) located on the indoor side of the prospective part 31, and a drainage path 50. The projected portion 31 is formed along the projected direction (indoor/outdoor direction) of the lower frame 21 and is disposed on the lower side of the shoji 2. The outdoor side wall part 32, the draining part 33, and the outdoor hollow part 34 are arranged on the lower side of the shoji 2, and the rising part 35, the upper piece part 36, the indoor hollow part 37, and the groove part 38 are arranged on the lower side of the shoji 2. It is placed on the indoor side of the room.

室外側壁部３２は、第１枠部３０及び下枠２１の室外側の見付け部であり、見込み部３１の室外側の端部から下側に突出して、下枠２１の見付け方向（上下方向）に沿って形成されている。水切り部３３は、室外側壁部３２の下側に位置し、室外側に向かって突出している。室外側壁部３２と水切り部３３は、下枠２１の室外側において露出している。室外側中空部３４は、室外側壁部３２の室内側に位置するとともに、室内側中空部３７よりも室外側に形成されている。室外側中空部３４は、中空状に形成された凸部であり、見込み部３１及び室外側壁部３２により区画されて、見込み部３１の室外側（室外側壁部３２側）の部分から下側に突出している。 The outdoor side wall part 32 is a finding part on the outdoor side of the first frame part 30 and the lower frame 21, and protrudes downward from the end of the expected part 31 on the outdoor side, and is arranged in the finding direction (vertical direction) of the lower frame 21. is formed along. The draining portion 33 is located below the outdoor side wall portion 32 and protrudes toward the outdoor side. The outdoor side wall part 32 and the draining part 33 are exposed on the outdoor side of the lower frame 21. The outdoor hollow portion 34 is located on the indoor side of the outdoor wall portion 32 and is formed on the outdoor side of the indoor hollow portion 37 . The outdoor side hollow part 34 is a convex part formed in a hollow shape, and is partitioned by the expected part 31 and the outdoor side wall part 32, and extends downward from the outdoor side (outdoor side wall part 32 side) of the expected part 31. It stands out.

立ち上がり部３５は、第１枠部３０の室内側の壁部であり、枠体３の開口部３Ａの内方側（上側）に向かって立ち上がる。また、立ち上がり部３５は、見込み部３１の室内側の端部から上側に突出して、下枠２１の見付け方向に沿って形成されている。上片部３６は、立ち上がり部３５に接続する突片であり、立ち上がり部３５の上端部から室外側（障子２側）に突出して、室内側中空部３７の上側に位置している。上片部３６が室内側中空部３７から上側に離隔して、上片部３６と室内側中空部３７の間に空所が設けられている。 The rising portion 35 is a wall portion of the first frame portion 30 on the indoor side, and rises toward the inner side (upper side) of the opening portion 3A of the frame body 3. Further, the rising portion 35 is formed to protrude upward from the indoor end of the prospecting portion 31 and along the finding direction of the lower frame 21. The upper piece part 36 is a projecting piece connected to the rising part 35, protrudes from the upper end of the rising part 35 to the outdoor side (the shoji 2 side), and is located above the indoor hollow part 37. The upper piece part 36 is separated upward from the indoor hollow part 37, and a space is provided between the upper piece part 36 and the indoor hollow part 37.

室内側中空部３７は、立ち上がり部３５の室外側に位置するとともに、室外側中空部３４よりも室内側に形成されている。室内側中空部３７は、中空状に形成された凸部であり、立ち上がり部３５及び見込み部３１により区画されて、見込み部３１の室内側（立ち上がり部３５側）の部分から上側に突出している。立ち上がり部３５の一部は、室内側中空部３７の室内側の第１区画壁部３７Ａであり、室内側中空部３７の室外側の第２区画壁部３７Ｂと室内外方向において対向している。第１区画壁部３７Ａは、室内側中空部３７の室内側の部分を区画し、第２区画壁部３７Ｂは、室内側中空部３７の室外側の部分を区画している。 The indoor hollow portion 37 is located on the outdoor side of the rising portion 35 and is formed closer to the indoor side than the outdoor hollow portion 34 . The indoor hollow part 37 is a convex part formed in a hollow shape, is partitioned by the rising part 35 and the expected part 31, and protrudes upward from the part of the expected part 31 on the indoor side (rising part 35 side). . A part of the rising portion 35 is a first partition wall 37A on the indoor side of the indoor hollow part 37, and faces a second partition wall 37B on the outdoor side of the indoor hollow part 37 in the indoor-outdoor direction. . The first partition wall 37A partitions the indoor side part of the indoor hollow part 37, and the second partition wall part 37B partitions the outdoor part of the indoor hollow part 37.

溝部３８は、下側に向かって窪む凹部であり、立ち上がり部３５の室内側に位置して、上側に向かって開放されている。また、溝部３８は、立ち上がり部３５から室内側に突出して、下額縁４に当接し、第１枠部３０、下枠２１、及び、下額縁４の長手方向（左右方向）に延びる。溝部３８は、第２枠部４０の下側で、第２枠部４０に沿って配置される。溝部３８は、室内外方向に沿って形成された溝底部３８Ａと、溝底部３８Ａから上側に突出する一対の溝壁部３８Ｂ、３８Ｃ（第１溝壁部３８Ｂ、第２溝壁部３８Ｃ）を有している。 The groove portion 38 is a concave portion that is depressed toward the lower side, and is located on the indoor side of the rising portion 35 and is open toward the upper side. Further, the groove portion 38 protrudes toward the indoor side from the rising portion 35, contacts the lower frame 4, and extends in the longitudinal direction (horizontal direction) of the first frame portion 30, the lower frame 21, and the lower frame 4. The groove portion 38 is arranged below the second frame portion 40 and along the second frame portion 40 . The groove portion 38 includes a groove bottom portion 38A formed along the indoor-outdoor direction, and a pair of groove wall portions 38B and 38C (a first groove wall portion 38B and a second groove wall portion 38C) that protrude upward from the groove bottom portion 38A. have.

溝底部３８Ａは、立ち上がり部３５から室内側に突出している。溝部３８及び溝底部３８Ａは、見込み部３１よりも上側に位置するとともに、下額縁４の上面よりも下側に位置している。第１溝壁部３８Ｂは、溝底部３８Ａの室外側の端部に接続する室外側溝壁部であり、第２溝壁部３８Ｃは、溝底部３８Ａの室内側の端部に接続する室内側溝壁部である。ここでは、第１溝壁部３８Ｂは、立ち上がり部３５の一部であり、第２溝壁部３８Ｃは、下額縁４に当接する当接部である。 The groove bottom portion 38A projects toward the indoor side from the rising portion 35. The groove portion 38 and the groove bottom portion 38A are located above the prospective portion 31 and below the upper surface of the lower frame 4. The first groove wall 38B is an outdoor groove wall that connects to the outdoor end of the groove bottom 38A, and the second groove wall 38C is an indoor groove wall that connects to the indoor end of the groove bottom 38A. Department. Here, the first groove wall portion 38B is a part of the rising portion 35, and the second groove wall portion 38C is a contact portion that comes into contact with the lower frame 4.

第１枠部３０は、立ち上がり部３５（第１溝壁部３８Ｂ、第１区画壁部３７Ａ）、第２区画壁部３７Ｂ、見込み部３１の室外側中空部３４を区画する部分、及び、室外側壁部３２のそれぞれに形成された排水孔５１～５４を有している。排水孔５１～５４は、第１枠部３０の排水経路５０に位置している。室外側壁部３２の排水孔５４には、排水弁５５が取り付けられている。排水経路５０は、排水孔５１～５４、溝部３８、室内側中空部３７、見込み部３１、及び、室外側中空部３４により構成されており、室内側から室外側に向かって次第に低くなるように第１枠部３０に設けられている。排水経路５０は、溝部３８から第１枠部３０及び下枠２１の室外側まで連通して、水を溝部３８から下枠２１の室外側に向かって排水する。 The first frame portion 30 includes a rising portion 35 (first groove wall portion 38B, first partition wall portion 37A), a second partition wall portion 37B, a portion of the prospective portion 31 that partitions the outdoor hollow portion 34, and an outdoor portion. Each side wall portion 32 has drainage holes 51 to 54 formed therein. The drainage holes 51 to 54 are located in the drainage path 50 of the first frame portion 30. A drain valve 55 is attached to the drain hole 54 of the outdoor wall portion 32. The drainage path 50 is composed of drainage holes 51 to 54, a groove 38, an indoor hollow section 37, an expected section 31, and an outdoor hollow section 34, and is arranged so that it gradually becomes lower from the indoor side toward the outdoor side. It is provided in the first frame portion 30. The drainage path 50 communicates from the groove 38 to the outdoor side of the first frame 30 and the lower frame 21, and drains water from the groove 38 toward the outdoor side of the lower frame 21.

下枠２１の室内側で溝部３８内に水が流入したときには、水は、溝部３８から排水経路５０を通って下枠２１の室外側に排水される。その際、水は、溝部３８から立ち上がり部３５の排水孔５１を通って室内側中空部３７に排水されて、室内側中空部３７内に流入する。また、水は、室内側中空部３７から第２区画壁部３７Ｂの排水孔５２を通って排水されて、見込み部３１の上面を室外側に向かって流れる。続いて、水は、見込み部３１の排水孔５３を通って室外側中空部３４内に流入し、室外側中空部３４から室外側壁部３２の排水孔５４（排水弁５５）を通って下枠２１の室外側に排水される。 When water flows into the groove 38 on the indoor side of the lower frame 21, the water is drained from the groove 38 to the outdoor side of the lower frame 21 through the drainage path 50. At this time, water is drained from the groove portion 38 into the indoor hollow portion 37 through the drain hole 51 of the rising portion 35 and flows into the indoor hollow portion 37. Further, water is drained from the indoor hollow part 37 through the drainage hole 52 of the second partition wall part 37B, and flows on the upper surface of the prospective part 31 toward the outdoor side. Subsequently, water flows into the outdoor hollow part 34 through the drainage hole 53 of the prospective part 31, and from the outdoor hollow part 34, passes through the drainage hole 54 (drain valve 55) of the outdoor wall part 32 and reaches the lower frame. The water is drained to the outdoor side of 21.

第２枠部４０は、第１枠部３０に装着される装着材４１と、装着材４１の室内側の部分を覆うカバー材６０を有している。第２枠部４０の装着材４１は、第１枠部３０の第２溝壁部３８Ｃ及び上片部３６の室外側の先端部に係合して、第１枠部３０に装着される。第１枠部３０の立ち上がり部３５、上片部３６、及び、溝部３８は、第１枠部３０の室内側の露出部分であり、第２枠部４０は、装着材４１により、第１枠部３０の室内側の露出部分（立ち上がり部３５、上片部３６、溝部３８）を覆う。第１枠部３０の溝部３８は、下枠２１の内側に位置する内溝部であり、下枠２１の室内側で第２枠部４０の装着材４１により遮蔽されて、下枠２１の外部には露出しない。 The second frame section 40 includes a mounting material 41 that is attached to the first frame section 30 and a cover material 60 that covers the indoor side portion of the mounting material 41. The mounting material 41 of the second frame portion 40 is attached to the first frame portion 30 by engaging with the second groove wall portion 38C of the first frame portion 30 and the tip portion on the outdoor side of the upper piece portion 36. The rising part 35, the upper piece part 36, and the groove part 38 of the first frame part 30 are exposed parts on the indoor side of the first frame part 30, and the second frame part 40 is attached to the first frame by the mounting material 41. The exposed portions of the section 30 on the indoor side (rising section 35, upper piece section 36, groove section 38) are covered. The groove part 38 of the first frame part 30 is an inner groove part located inside the lower frame 21, and is shielded by the mounting material 41 of the second frame part 40 on the indoor side of the lower frame 21, and is connected to the outside of the lower frame 21. is not exposed.

第２枠部４０は、装着材４１に形成された室内側壁部４２、上片部４３、凸部４４、アングル部４５、水受け溝４６、及び、排水部４７を有するとともに、カバー材６０に形成された上面部６１、覆い部６２、突片６３、及び、複数の当接片６４～６６（第１当接片６４、第２当接片６５、第３当接片６６）を有している。室内側壁部４２は、下枠２１の室内側の見付け部であり、下枠２１の見付け方向に沿って形成されて、第１枠部３０の溝部３８の上側に位置している。また、室内側壁部４２は、第１枠部３０の立ち上がり部３５から室内側に離隔して配置されて、室内外方向において立ち上がり部３５と対向している。 The second frame portion 40 has an indoor side wall portion 42 , an upper piece portion 43 , a convex portion 44 , an angle portion 45 , a water receiving groove 46 , and a drainage portion 47 formed on the mounting material 41 . It has an upper surface portion 61, a cover portion 62, a projecting piece 63, and a plurality of abutting pieces 64 to 66 (a first abutting piece 64, a second abutting piece 65, and a third abutting piece 66). ing. The indoor side wall part 42 is a finding part on the indoor side of the lower frame 21, is formed along the finding direction of the lower frame 21, and is located above the groove part 38 of the first frame part 30. Moreover, the indoor side wall part 42 is spaced apart from the rising part 35 of the first frame part 30 toward the indoor side, and faces the rising part 35 in the indoor-outdoor direction.

室内側壁部４２と立ち上がり部３５の間には、内側空間４８が形成されるとともに、凸部４４が配置されている。内側空間４８は、下枠２１の内側（第１枠部３０と第２枠部４０の間）に形成されて、障子２の室内側、及び、溝部３８の上側に位置している。第２枠部４０の上片部４３は、室内側壁部４２に接続する突片であり、室内側壁部４２の上端部から室外側（障子２側）に突出している。第２枠部４０の上片部４３は、第１枠部３０の立ち上がり部３５と上片部３６の上側に位置して、第１枠部３０の上片部３６に載置されている。凸部４４は、中空状に形成された装着材４１の中空部であり、内側空間４８に配置されている。凸部４４は、室内側壁部４２から室外側に突出して、立ち上がり部３５に当接する。 An inner space 48 is formed between the indoor wall portion 42 and the rising portion 35, and a convex portion 44 is arranged. The inner space 48 is formed inside the lower frame 21 (between the first frame part 30 and the second frame part 40), and is located on the indoor side of the shoji 2 and above the groove part 38. The upper piece part 43 of the second frame part 40 is a projecting piece connected to the indoor side wall part 42, and protrudes from the upper end of the indoor side wall part 42 to the outdoor side (shoji 2 side). The upper piece part 43 of the second frame part 40 is located above the rising part 35 and the upper piece part 36 of the first frame part 30, and is placed on the upper piece part 36 of the first frame part 30. The convex portion 44 is a hollow portion of the mounting material 41 formed in a hollow shape, and is arranged in the inner space 48 . The convex portion 44 protrudes from the indoor wall portion 42 toward the outdoor side and comes into contact with the rising portion 35 .

アングル部４５は、下額縁４に載置される載置部であり、室内側壁部４２から室内側に突出して、下額縁４の上面に当接する。アングル部４５は、上側に向かって突出する２つの突起４５Ａ、４５Ｂ（第１突起４５Ａ、第２突起４５Ｂ）を有している。室外側の第１突起４５Ａは、アングル部４５の室内外方向の中間部に形成され、室内側の第２突起４５Ｂは、アングル部４５の室内側の端部（先端部）に形成されている。 The angle portion 45 is a mounting portion placed on the lower frame 4, protrudes toward the indoor side from the indoor wall portion 42, and comes into contact with the upper surface of the lower frame 4. The angle portion 45 has two protrusions 45A and 45B (a first protrusion 45A and a second protrusion 45B) that protrude upward. The first protrusion 45A on the outdoor side is formed at the middle part of the angle part 45 in the indoor/outdoor direction, and the second protrusion 45B on the indoor side is formed at the end (tip part) of the angle part 45 on the indoor side. .

水受け溝４６は、下側に向かって窪む凹部であり、上側に向かって開放されている。また、水受け溝４６は、室内側壁部４２の室内側に位置して、下枠２１の室内側で水を受ける。水受け溝４６は、アングル部４５に形成された溝部であり、アングル部４５の室外側の部分において第１突起４５Ａと室内側壁部４２の間に形成されている。従って、第１突起４５Ａは、水受け溝４６の室内側の溝壁部であり、室内側壁部４２の一部（下側部）は、水受け溝４６の室外側の溝壁部である。水受け溝４６は、室内側壁部４２から室内側に突出して、下額縁４の上側に配置され、第２枠部４０、下枠２１、及び、下額縁４の長手方向に延びる。 The water receiving groove 46 is a concave portion that is depressed toward the bottom and is open toward the top. Further, the water receiving groove 46 is located on the indoor side of the indoor wall portion 42 and receives water on the indoor side of the lower frame 21. The water receiving groove 46 is a groove formed in the angle portion 45, and is formed between the first protrusion 45A and the indoor wall portion 42 on the outdoor side portion of the angle portion 45. Therefore, the first protrusion 45A is a groove wall portion on the indoor side of the water receiving groove 46, and a part (lower side portion) of the indoor side wall portion 42 is a groove wall portion on the outdoor side of the water receiving groove 46. The water receiving groove 46 protrudes toward the indoor side from the indoor side wall portion 42, is arranged above the lower frame 4, and extends in the longitudinal direction of the second frame portion 40, the lower frame 21, and the lower frame 4.

第１枠部３０の溝部３８は、水受け溝４６の下側に配置されて、水受け溝４６に沿って配置されている。溝部３８の第２溝壁部３８Ｃは、水受け溝４６の溝底部及びアングル部４５に当接する。水受け溝４６及びアングル部４５（ここでは、水受け溝４６の室外側の部分及びアングル部４５の室外側の端部）は、溝部３８の上側に位置し、溝部３８に沿って配置されている。水受け溝４６と溝部３８は、上下方向に隣り合い、互いに並列して配置されている。 The groove portion 38 of the first frame portion 30 is arranged below the water receiving groove 46 and along the water receiving groove 46 . The second groove wall portion 38C of the groove portion 38 contacts the groove bottom portion of the water receiving groove 46 and the angle portion 45. The water receiving groove 46 and the angle portion 45 (here, the outdoor side portion of the water receiving groove 46 and the outdoor side end of the angle portion 45) are located above the groove portion 38 and are arranged along the groove portion 38. There is. The water receiving groove 46 and the groove part 38 are arranged adjacent to each other in the vertical direction and parallel to each other.

排水部４７は、水受け溝４６に形成された貫通孔（排水孔）であり、水受け溝４６を区画する溝壁部又は溝底部に形成されている。ここでは、排水部４７は、水受け溝４６の室外側の溝壁部（室内側壁部４２）に形成され、水受け溝４６の内側及び溝部３８の上側に向かって開口している。水受け溝４６と溝部３８は、排水部４７により、互いに連通している。水受け溝４６内の水は、排水部４７により、水受け溝４６から第１枠部３０の溝部３８に向かって排水される。溝部３８は、水受け溝４６から流入する水を受ける。 The drainage portion 47 is a through hole (drainage hole) formed in the water receiving groove 46, and is formed in a groove wall portion or a groove bottom portion that partitions the water receiving groove 46. Here, the drainage portion 47 is formed on the outdoor groove wall portion (indoor side wall portion 42) of the water receiving groove 46, and opens toward the inside of the water receiving groove 46 and the upper side of the groove portion 38. The water receiving groove 46 and the groove part 38 communicate with each other through a drainage part 47. The water in the water receiving groove 46 is drained from the water receiving groove 46 toward the groove portion 38 of the first frame portion 30 by the drainage portion 47 . The groove portion 38 receives water flowing in from the water receiving groove 46.

カバー材６０は、アングル部４５に取り付けられて、アングル部４５の上側で、上面部６１及び突片６３により、アングル部４５を覆う。カバー材６０の覆い部６２は、上面部６１の一部（室外側部）であり、覆い部６２を含む上面部６１は、アングル部４５の上側に配置されている。上面部６１は、室内外方向に沿って配置される板状部であり、アングル部４５から上側に離隔して、上下方向において、アングル部４５と対向して配置されている。突片６３は、上面部６１の室内側の端部から下側に突出して、アングル部４５の室内側に配置されている。 The cover material 60 is attached to the angle portion 45 and covers the angle portion 45 above the angle portion 45 with the upper surface portion 61 and the protruding piece 63. The cover portion 62 of the cover material 60 is a part of the upper surface portion 61 (outdoor side portion), and the upper surface portion 61 including the cover portion 62 is arranged above the angle portion 45 . The upper surface part 61 is a plate-shaped part arranged along the indoor/outdoor direction, and is spaced upward from the angle part 45 and arranged to face the angle part 45 in the vertical direction. The projecting piece 63 protrudes downward from the indoor end of the upper surface portion 61 and is disposed on the indoor side of the angle portion 45.

当接片６４～６６は、上面部６１から下側に突出して、アングル部４５に当接する。室内外方向に離隔する３つの当接片６４～６６のうち、室内側の第１当接片６４と第２当接片６５がアングル部４５の突起４５Ａ、４５Ｂに係合して、カバー材６０がアングル部４５に着脱可能に取り付けられる。３つの当接片６４～６６のうち、最も室外側に位置する第３当接片６６は、覆い部６２から下側に突出して、水受け溝４６内に配置され、水受け溝４６の溝底部に当接する。 The contact pieces 64 to 66 protrude downward from the upper surface portion 61 and contact the angle portion 45. Of the three abutting pieces 64 to 66 separated in the indoor/outdoor direction, the first abutting piece 64 and the second abutting piece 65 on the indoor side engage with the protrusions 45A and 45B of the angle part 45, and the cover material 60 is detachably attached to the angle portion 45. Among the three abutting pieces 64 to 66, the third abutting piece 66 located on the most outdoor side protrudes downward from the cover part 62 and is disposed within the water receiving groove 46, so that the third abutting piece 66 is positioned on the most outdoor side. It touches the bottom.

覆い部６２は、室外側に突出するヒレ状の突部であり、アングル部４５の一部である水受け溝４６の上側に張り出す。カバー材６０がアングル部４５に取り付けられた状態で、覆い部６２は、水受け溝４６の上側に配置されて、水受け溝４６を上側から覆う。また、覆い部６２は、水受け溝４６から上側に離隔して、上下方向において、水受け溝４６と対向して配置されている。上面部６１及び覆い部６２の上面は、凹凸のない平坦面に形成されており、室内外方向に沿って配置されて、下枠２１の室内側で露出している。 The cover portion 62 is a fin-like protrusion that protrudes toward the outdoor side, and protrudes above the water receiving groove 46 that is a part of the angle portion 45 . With the cover member 60 attached to the angle portion 45, the cover portion 62 is disposed above the water receiving groove 46 and covers the water receiving groove 46 from above. Further, the cover portion 62 is disposed upwardly away from the water receiving groove 46 and facing the water receiving groove 46 in the vertical direction. The upper surfaces of the upper surface part 61 and the cover part 62 are formed as flat surfaces without unevenness, are arranged along the indoor-outdoor direction, and are exposed on the indoor side of the lower frame 21.

第２枠部４０は、覆い部６２を含むカバー材６０により覆われた中空部７０～７２（第１中空部７０、第２中空部７１、第３中空部７２）を有している。中空部７０～７２は、カバー材６０の上面部６１（覆い部６２）とアングル部４５の間に形成されて、第２枠部４０の長手方向に延び、下額縁４の上側に配置される。複数の中空部７０～７２は、カバー材６０の当接片６５、６６により室内外方向に仕切られて、室内外方向に並べて形成される。中空部７０～７２のうち、最も室外側に位置する第３中空部７２は、覆い部６２と水受け溝４６の間に形成されて、水受け溝４６の内側の箇所を含む。 The second frame portion 40 has hollow portions 70 to 72 (a first hollow portion 70, a second hollow portion 71, and a third hollow portion 72) covered with a cover material 60 including a cover portion 62. The hollow parts 70 to 72 are formed between the upper surface part 61 (cover part 62) of the cover material 60 and the angle part 45, extend in the longitudinal direction of the second frame part 40, and are arranged above the lower frame 4. . The plurality of hollow parts 70 to 72 are partitioned in the indoor-outdoor direction by the contact pieces 65 and 66 of the cover material 60, and are formed side by side in the indoor-outdoor direction. Among the hollow parts 70 to 72, the third hollow part 72 located furthest outside the room is formed between the cover part 62 and the water receiving groove 46, and includes a portion inside the water receiving groove 46.

第２枠部４０は、覆い部６２の上側から水受け溝４６に水を流入させる流入部７３を有している。流入部７３は、水受け溝４６に向かって水を通過させる流入口であり、水受け溝４６の上側に位置して、覆い部６２の上側から水受け溝４６の内側（覆い部６２の下側）に向かって開口している。ここでは、流入部７３は、覆い部６２と室内側壁部４２の間に設けられた隙間であり、覆い部６２の室外側の先端部及び室内側壁部４２（水受け溝４６の室外側の溝壁部）に沿って延びる。覆い部６２は、室内側壁部４２から室内側に離隔して配置されて、室内側壁部４２との間に隙間（流入部７３）を形成する。覆い部６２は、水受け溝４６における流入部７３の下側に位置する箇所を除いて、水受け溝４６を覆う。 The second frame portion 40 has an inflow portion 73 that allows water to flow into the water receiving groove 46 from above the cover portion 62 . The inflow part 73 is an inlet that allows water to pass toward the water receiving groove 46, and is located above the water receiving groove 46, and is located above the water receiving groove 46 and from the inside of the water receiving groove 46 (under the covering part 62). It opens towards the side). Here, the inflow part 73 is a gap provided between the cover part 62 and the indoor wall part 42, and includes the tip part on the outdoor side of the cover part 62 and the indoor wall part 42 (the groove on the outdoor side of the water receiving groove 46). wall). The cover portion 62 is arranged to be spaced apart from the indoor wall portion 42 toward the indoor side, and forms a gap (inflow portion 73) between the cover portion 62 and the indoor wall portion 42 . The cover portion 62 covers the water receiving groove 46 except for a portion of the water receiving groove 46 located below the inflow portion 73 .

例えば、第２枠部４０の室内側の表面に結露が生じたときには、結露水は、室内側壁部４２に沿って下側に流れる。このような結露水を含む水は、下枠２１の室内側で、覆い部６２の上側から流入部７３を通って水受け溝４６内に流入する。水受け溝４６内に流入した水は、水受け溝４６の排水部４７、第１枠部３０の溝部３８、及び、排水経路５０を介して、下枠２１の室外側に排水される。その際、水は、水受け溝４６から排水部４７を通って溝部３８に向かって排水されて、水受け溝４６から溝部３８内に流入する。続いて、水は、溝部３８から排水経路５０を通って下枠２１の室外側に排水される。 For example, when dew condensation occurs on the indoor side surface of the second frame section 40, the condensed water flows downward along the indoor side wall section 42. Water containing such dew condensation flows from above the cover part 62 into the water receiving groove 46 through the inflow part 73 on the indoor side of the lower frame 21 . The water flowing into the water receiving groove 46 is drained to the outdoor side of the lower frame 21 via the drainage part 47 of the water receiving groove 46, the groove part 38 of the first frame part 30, and the drainage path 50. At this time, water is drained from the water receiving groove 46 through the drainage part 47 toward the groove part 38, and flows into the groove part 38 from the water receiving groove 46. Subsequently, the water is drained from the groove 38 to the outdoor side of the lower frame 21 through the drainage path 50.

図３は、図１のＸ２－Ｘ２線で切断した本実施形態の建具１の縦断面図であり、図２と同様に、下枠２１と障子２の下側部分を示している。また、図３では、下枠２１の長手方向の端部における断面を示している。
図示のように、第２枠部４０は、水受け溝４６の長手方向（左右方向）の両側の端部に配置された止水材７４を有している。水受け溝４６の端部は、第２枠部４０の長手方向の端部に位置している。 FIG. 3 is a longitudinal cross-sectional view of the fittings 1 of this embodiment taken along the line X2-X2 in FIG. 1, showing the lower frame 21 and the lower part of the shoji 2, similarly to FIG. 2. Moreover, FIG. 3 shows a cross section at the end of the lower frame 21 in the longitudinal direction.
As shown in the figure, the second frame portion 40 has water stop materials 74 disposed at both ends of the water receiving groove 46 in the longitudinal direction (left and right direction). The end of the water receiving groove 46 is located at the end of the second frame 40 in the longitudinal direction.

止水材７４は、ブロック状に形成されたシール材であり、水受け溝４６の両側の端部のそれぞれで、第３中空部７２に収容されている。また、止水材７４は、覆い部６２と水受け溝４６の溝底部の間に挟まれて、覆い部６２、水受け溝４６の溝底部、及び、第３当接片６６に密着する。止水材７４は、水受け溝４６の端部に収容されて、水受け溝４６の端部から水受け溝４６の長手方向の外側に水が流出するのを規制する。これにより、下枠２１の端部と縦枠２２、２３の端部の接続箇所から水が漏れるのが規制されて、水が建物の躯体まで到達するのが防止される。 The water stopping material 74 is a sealing material formed in a block shape, and is accommodated in the third hollow portion 72 at each of both ends of the water receiving groove 46 . Further, the water stop material 74 is sandwiched between the cover portion 62 and the groove bottom of the water receiving groove 46 and is in close contact with the cover portion 62, the groove bottom of the water receiving groove 46, and the third contact piece 66. The water stop material 74 is housed in the end of the water receiving groove 46 and prevents water from flowing out from the end of the water receiving groove 46 to the outside of the water receiving groove 46 in the longitudinal direction. This restricts water from leaking from the connection points between the ends of the lower frame 21 and the vertical frames 22 and 23, and prevents water from reaching the building frame.

以上説明した建具１では、下枠２１の室内側から室外側に向かって効率的に排水できるとともに、下枠２１の室内側で、第２枠部４０の覆い部６２により、水受け溝４６の露出を抑制して、下枠２１の意匠性を向上させることができる。また、覆い部６２により、水受け溝４６及び水受け溝４６に溜まった水を隠すことができる。水受け溝４６にごみも溜まり難くなるため、下枠２１の室内側の箇所を容易に清掃することができる。覆い部６２がカバー材６０に形成されており、カバー材６０をアングル部４５から取り外すことで、水受け溝４６を容易に清掃することができる。 In the fittings 1 described above, water can be efficiently drained from the indoor side of the lower frame 21 toward the outdoor side, and the water receiving groove 46 is formed on the indoor side of the lower frame 21 by the covering part 62 of the second frame part 40. Exposure can be suppressed and the design of the lower frame 21 can be improved. Further, the cover portion 62 can hide the water receiving groove 46 and the water accumulated in the water receiving groove 46 . Since dirt is less likely to accumulate in the water receiving groove 46, the indoor side portion of the lower frame 21 can be easily cleaned. A cover portion 62 is formed on the cover material 60, and by removing the cover material 60 from the angle portion 45, the water receiving groove 46 can be easily cleaned.

カバー材６０により、第２枠部４０に中空部７０～７２を容易に形成することができる。また、中空部７０～７２が第２枠部４０の断熱層となり、下枠２１の断熱性を向上させることができる。止水材７４により、水受け溝４６の長手方向の端部から水が流出するのを抑制することができる。これにより、水受け溝４６から溝部３８に確実に排水できるとともに、下枠２１の端部と縦枠２２、２３の端部の接続箇所から建物の躯体側に水が浸入するのを防止することができる。覆い部６２の上面が平坦面に形成されており、覆い部６２の上面を容易に清掃することができる。覆い部６２の上面に水が溜まるのを抑制して、流入部７３から水受け溝４６に水を円滑に流入させることもできる。 The cover material 60 allows the hollow parts 70 to 72 to be easily formed in the second frame part 40. Further, the hollow portions 70 to 72 serve as a heat insulating layer of the second frame portion 40, and the heat insulating properties of the lower frame 21 can be improved. The water stop material 74 can prevent water from flowing out from the longitudinal ends of the water receiving groove 46 . As a result, water can be reliably drained from the water receiving groove 46 to the groove part 38, and water can be prevented from entering the building frame from the connection point between the end of the lower frame 21 and the ends of the vertical frames 22 and 23. Can be done. The upper surface of the cover part 62 is formed as a flat surface, and the upper surface of the cover part 62 can be easily cleaned. It is also possible to prevent water from accumulating on the upper surface of the cover part 62 and to allow water to flow smoothly into the water receiving groove 46 from the inflow part 73.

なお、覆い部６２（上面部６１）の上面は、水平方向に沿った水平面であってもよく、水平方向に対して傾斜した傾斜面であってもよい。覆い部６２の上面に、室内側から室外側（流入部７３側）に向かって次第に低くなる勾配を設けるようにしてもよい。このように、覆い部６２の上面に、流入部７３に向かって次第に低くなる勾配を設けることで、覆い部６２の上面に水が滞留するのを抑制することができる。また、覆い部６２の上面から流入部７３に水を流して、流入部７３を通して水受け溝４６に水を円滑に流入させることができる。 Note that the upper surface of the cover portion 62 (upper surface portion 61) may be a horizontal surface along the horizontal direction, or may be an inclined surface inclined with respect to the horizontal direction. The upper surface of the cover part 62 may be provided with a slope that gradually decreases from the indoor side to the outdoor side (inflow part 73 side). In this way, by providing the top surface of the cover part 62 with a slope that gradually decreases toward the inflow part 73, it is possible to suppress water from staying on the top surface of the cover part 62. Moreover, water can flow from the upper surface of the cover part 62 to the inflow part 73, and the water can smoothly flow into the water receiving groove 46 through the inflow part 73.

覆い部６２は、カバー材６０に形成せずに、第２枠部４０のカバー材６０以外の部分（例えば、装着材４１）に形成してもよい。この場合には、カバー材６０を第２枠部４０に設けないようにしてもよい。水受け溝４６は、アングル部４５に形成せずに、第２枠部４０のアングル部４５以外の部分（例えば、装着材４１の室内側壁部４２とアングル部４５の間の部分）に形成してもよい。 The cover portion 62 may not be formed on the cover material 60 but may be formed on a portion of the second frame portion 40 other than the cover material 60 (for example, the mounting material 41). In this case, the cover material 60 may not be provided on the second frame portion 40. The water receiving groove 46 is not formed in the angle portion 45 but in a portion of the second frame portion 40 other than the angle portion 45 (for example, a portion between the indoor side wall portion 42 of the mounting material 41 and the angle portion 45). It's okay.

排水部４７は、水受け溝４６に形成された貫通孔に限定されず、例えば、水受け溝４６に形成された切欠き、又は、スリットであってもよい。また、排水部４７は、水受け溝４６から溝部３８に排水可能な部分であればよく、水受け溝４６と溝部３８を連通すれば、その形状は限定されない。 The drainage portion 47 is not limited to a through hole formed in the water receiving groove 46, but may be a notch or a slit formed in the water receiving groove 46, for example. Moreover, the drainage part 47 may be any part as long as it can drain water from the water receiving groove 46 to the groove part 38, and its shape is not limited as long as the water receiving groove 46 and the groove part 38 are communicated with each other.

流入部７３は、覆い部６２と室内側壁部４２の間の隙間に限定されず、例えば、覆い部６２に形成された孔、又は、スリットであってもよい。また、流入部７３は、覆い部６２の上側から水受け溝４６に水を流入可能な部分であればよく、第２枠部４０の覆い部６２以外の箇所に設けるようにしてもよい。そのため、覆い部６２により、流入部７３の箇所を除いた水受け溝４６を覆ってもよく、水受け溝４６の全体を覆ってもよい。本発明は、種々の開閉窓（例えば、縦すべり出し窓、引き違い窓、倒し窓）に適用することができ、開閉窓以外の建具（例えば、固定窓）に適用することもできる。 The inflow portion 73 is not limited to the gap between the cover portion 62 and the indoor wall portion 42, and may be, for example, a hole formed in the cover portion 62 or a slit. Further, the inflow portion 73 may be any portion that can allow water to flow into the water receiving groove 46 from above the cover portion 62, and may be provided at a location other than the cover portion 62 of the second frame portion 40. Therefore, the cover portion 62 may cover the water receiving groove 46 except for the inflow portion 73, or may cover the entire water receiving groove 46. The present invention can be applied to various opening/closing windows (for example, vertical sliding windows, sliding windows, folding windows), and can also be applied to fittings other than opening/closing windows (for example, fixed windows).

以上のとおり、建具は、下枠に、第１枠部と、前記第１枠部の室内側で前記第１枠部に連結される第２枠部と、を有する建具であって、
前記第１枠部は、前記第２枠部に沿って配置される溝部と、前記溝部から前記下枠の室外側まで連通する排水経路と、を有し、
前記第２枠部は、前記下枠の室内側で水を受ける水受け溝と、前記水受け溝から前記溝部に向かって排水する排水部と、前記水受け溝を覆う覆い部と、前記覆い部の上側から前記水受け溝に水を流入させる流入部と、を有する建具である。
従って、建具の下枠の室内側から室外側に向かって効率的に排水できるとともに、下枠の室内側で水受け溝の露出を抑制して、下枠の意匠性を向上させることができる。 As described above, the fitting has a first frame part in the lower frame, and a second frame part connected to the first frame part on the indoor side of the first frame part,
The first frame has a groove disposed along the second frame, and a drainage path communicating from the groove to the outdoor side of the lower frame,
The second frame portion includes a water receiving groove that receives water on the indoor side of the lower frame, a drainage portion that drains water from the water receiving groove toward the groove portion, a cover portion that covers the water receiving groove, and the cover. The fitting has an inflow part that allows water to flow into the water receiving groove from above the part.
Therefore, water can be efficiently drained from the indoor side of the lower frame of the fitting toward the outdoor side, and the exposure of the water receiving groove on the indoor side of the lower frame can be suppressed, thereby improving the design of the lower frame.

前記第２枠部は、室内側に突出するアングル部と、前記アングル部に取り付けられて前記アングル部を覆うカバー材と、を有し、
前記覆い部は、前記カバー材に形成される。
カバー材をアングル部から取り外すことで、水受け溝を容易に清掃することができる。 The second frame portion has an angle portion that projects toward the indoor side, and a cover material that is attached to the angle portion and covers the angle portion,
The cover portion is formed on the cover material.
By removing the cover material from the angle part, the water receiving groove can be easily cleaned.

前記第２枠部は、前記カバー材により覆われた中空部を有する。
カバー材により、第２枠部に中空部を容易に形成することができる。また、中空部が第２枠部の断熱層となり、下枠の断熱性を向上させることができる。 The second frame portion has a hollow portion covered with the cover material.
The cover material allows a hollow portion to be easily formed in the second frame portion. Further, the hollow portion becomes a heat insulating layer of the second frame, and the heat insulating properties of the lower frame can be improved.

前記第２枠部は、前記水受け溝の長手方向の端部に配置された止水材を有する。
止水材により、水受け溝の長手方向の端部から水が流出するのを抑制することができる。これにより、水受け溝から溝部に確実に排水できるとともに、水が下枠の端部と縦枠の端部の接続箇所から建物の躯体側に浸入するのを防止することができる。 The second frame portion has a water stop material disposed at a longitudinal end of the water receiving groove.
The water stop material can prevent water from flowing out from the longitudinal ends of the water receiving groove. As a result, water can be reliably drained from the water receiving groove to the groove, and water can be prevented from entering the building frame through the connection between the end of the lower frame and the end of the vertical frame.

前記覆い部の上面は、平坦面に形成されている。
そのため、覆い部の上面を容易に清掃することができる。覆い部の上面に水が溜まるのを抑制して、流入部から水受け溝に水を円滑に流入させることもできる。 The upper surface of the cover portion is formed into a flat surface.
Therefore, the upper surface of the cover can be easily cleaned. It is also possible to prevent water from accumulating on the upper surface of the cover and to allow water to flow smoothly from the inlet to the water receiving groove.

１・・・建具、２・・・障子、３・・・枠体、３Ａ・・・開口部、４・・・下額縁、１０・・・框体、１１・・・パネル、１２・・・上框、１３・・・下框、１４・・・縦框、１５・・・縦框、２０・・・上枠、２１・・・下枠、２２・・・縦枠、２３・・・縦枠、３０・・・第１枠部、３１・・・見込み部、３２・・・室外側壁部、３３・・・水切り部、３４・・・室外側中空部、３５・・・立ち上がり部、３６・・・上片部、３７・・・室内側中空部、３７Ａ・・・第１区画壁部、３７Ｂ・・・第２区画壁部、３８・・・溝部、３８Ａ・・・溝底部、３８Ｂ・・・第１溝壁部、３８Ｃ・・・第２溝壁部、４０・・・第２枠部、４１・・・装着材、４２・・・室内側壁部、４３・・・上片部、４４・・・凸部、４５・・・アングル部、４５Ａ・・・第１突起、４５Ｂ・・・第２突起、４６・・・水受け溝、４７・・・排水部、４８・・・内側空間、５０・・・排水経路、５１・・・排水孔、５２・・・排水孔、５３・・・排水孔、５４・・・排水孔、５５・・・排水弁、６０・・・カバー材、６１・・・上面部、６２・・・覆い部、６３・・・突片、６４・・・第１当接片、６５・・・第２当接片、６６・・・第３当接片、７０・・・第１中空部、７１・・・第２中空部、７２・・・第３中空部、７３・・・流入部、７４・・・止水材。 DESCRIPTION OF SYMBOLS 1... Fittings, 2... Shoji, 3... Frame, 3A... Opening, 4... Lower frame, 10... Frame, 11... Panel, 12... Upper stile, 13...lower stile, 14...vertical stile, 15...vertical stile, 20...upper frame, 21...lower frame, 22...vertical frame, 23...vertical Frame, 30... First frame part, 31... Expected part, 32... Outdoor side wall part, 33... Draining part, 34... Outdoor side hollow part, 35... Rising part, 36 ...Top piece part, 37...Indoor hollow part, 37A...First partition wall part, 37B...Second partition wall part, 38...Groove part, 38A...Groove bottom part, 38B ...First groove wall part, 38C... Second groove wall part, 40... Second frame part, 41... Fitting material, 42... Indoor side wall part, 43... Upper piece part , 44...Convex portion, 45...Angle portion, 45A...First protrusion, 45B...Second protrusion, 46...Water receiving groove, 47...Drainage portion, 48... Inner space, 50... Drain route, 51... Drain hole, 52... Drain hole, 53... Drain hole, 54... Drain hole, 55... Drain valve, 60... Cover material, 61...Top surface part, 62...Cover part, 63...Protruding piece, 64...First abutting piece, 65...Second abutting piece, 66...Third abutting piece Contact piece, 70...first hollow part, 71...second hollow part, 72...third hollow part, 73...inflow part, 74...waterstop material.

Claims

A first frame part located on the lower side and the indoor side of the shoji , and a first frame part arranged on the indoor side of the shoji and on the indoor side of the first frame part, on the lower frame of the frame surrounding the shoji. A fitting having a second frame portion connected to the second frame portion,
The first frame has a groove disposed below the second frame and along the second frame, and a drainage path communicating from the groove to the outdoor side of the lower frame,
The second frame portion includes a water receiving groove that receives water on the indoor side of the lower frame, a drainage portion that drains water from the water receiving groove toward the groove portion, a cover portion that covers the water receiving groove, and the cover. an inflow part that allows water to flow into the water receiving groove from the upper side of the part, an angle part that protrudes toward the indoor side, and a cover material that is attached to the angle part and covers the angle part ,
The cover portion is formed on the cover material,
The water receiving groove is formed in the angle part and forms a hollow part between the water receiving groove and the cover part .

In the fittings described in claim 1 ,
The second frame portion is a fitting having a hollow portion covered with the cover material.

In the fittings described in claim 1 or 2 ,
The second frame portion is a fitting having a water stop material disposed at a longitudinal end of the water receiving groove.

The fittings according to any one of claims 1 to 3 ,
The upper surface of the cover part is formed into a flat surface.