JP2020045642A

JP2020045642A - Renovating fitting

Info

Publication number: JP2020045642A
Application number: JP2018172985A
Authority: JP
Inventors: 龍大佐野; Ryusuke Sano
Original assignee: Sankyo Tateyama Inc
Current assignee: Sankyo Tateyama Inc
Priority date: 2018-09-14
Filing date: 2018-09-14
Publication date: 2020-03-26
Anticipated expiration: 2038-09-14
Also published as: JP7082018B2

Abstract

To impart high fire prevention performance to a renovating fitting.SOLUTION: A renovating fitting comprises new frames including a new upper frame, a new lower frame, and right and left new vertical frames, and attached to an existing frame remaining in a skeleton opening through attachment auxiliary members. The respective new frames are provided at end positions in a depth direction, with heating foaming members continuously in four peripheries over the entire length in a longitudinal direction. The heating foaming members arranged in the respective new frames continuously form a fire prevention line when foamed in a fire.SELECTED DRAWING: Figure 12

Description

本発明は、建物開口部に残存する既設枠の内周に配置される改修建具に関する。 TECHNICAL FIELD The present invention relates to a renovation fitting arranged on an inner periphery of an existing frame remaining in a building opening.

建物開口部に残存する既設枠の内周に配置される改修建具が公知となっている。 Refurbishment fittings arranged on the inner periphery of an existing frame remaining in a building opening are known.

特開２００７−１２０２４５号公報JP 2007-120245 A

上記特許文献１に記載された改修建具は、既設の下枠を残存させたまま建具の改修を行うことができるので、施工性が高く、効率的に建具の改修をすることができる。
近年、建具において、防火性能の向上が求められており、改修サッシにおいても、同様に高い防火性能が求められている。 The refurbished fitting described in Patent Document 1 can be renovated with the existing lower frame remaining, so that the renovation of the fitting can be efficiently performed with high workability.
In recent years, improvements in fire prevention performance have been demanded for fittings, and similarly high fire prevention performance has been demanded for renovation sashes.

本発明は、改修建具において、高い防火性能を付与することを目的とする。 An object of the present invention is to provide a renovated fitting with high fire prevention performance.

本発明の一実施形態は、躯体開口部に残存する既設枠に取付補助材を介して新設上枠、新設下枠及び左右の新設竪枠からなる新設枠を取り付けてなり、各新設枠は、見込方向の端部位置に長さ方向全長に亘って加熱発泡材を四周に連続するように設けてあり、各新設枠に配置した加熱発泡材は、火災時に発泡した際に連続して防火ラインを形成する改修建具である。 In one embodiment of the present invention, a new frame consisting of a new upper frame, a new lower frame, and left and right new vertical frames is attached to an existing frame remaining in the opening of the skeleton via an attachment auxiliary material, and each new frame is The heating foam material is provided at the end position in the anticipation direction so as to be continuous around the entire length in the lengthwise direction, and the heating foam material arranged in each new frame is continuously connected to the fire protection line when foaming occurs in a fire. It is a renovation fitting that forms

本実施形態の改修建具の構成により、高い防火性能を付与することができる。 With the configuration of the renovated fitting of the present embodiment, high fire protection performance can be provided.

本発明の第１の実施形態に係る改修建具の竪断面図である。It is a longitudinal section of a renovation fitting concerning a 1st embodiment of the present invention. 本発明の第１の実施形態に係る改修建具の横断面図である。It is a cross-sectional view of the renovation fitting according to the first embodiment of the present invention. 本発明の第２の実施形態に係る改修建具の竪断面図である。It is a longitudinal section of the renovation fitting concerning a 2nd embodiment of the present invention. 本発明の第２の実施形態に係る改修建具の横断面図である。It is a cross-sectional view of the renovation fitting according to the second embodiment of the present invention. 本発明の実施形態に係る改修建具の補助部材の様子を示す正面図である。It is a front view showing the situation of the auxiliary member of the renovation fitting concerning the embodiment of the present invention. 本発明の第１の実施形態に係る改修建具の上枠部分の竪断面図である。It is a longitudinal section of the upper frame part of the renovation fitting which concerns on 1st Embodiment of this invention. 本発明の第１の実施形態に係る改修建具の下枠部分の竪断面図である。It is a longitudinal section of the lower frame part of the renovation fittings concerning a 1st embodiment of the present invention. 本発明の第1の実施形態に係る改修建具の竪枠部分の竪断面図である。FIG. 2 is a vertical sectional view of a vertical frame portion of the renovation fitting according to the first embodiment of the present invention. 本発明の第２の実施形態に係る改修建具の上枠部分の竪断面図である。It is a longitudinal section of the upper frame part of renovation fittings concerning a 2nd embodiment of the present invention. 本発明の第２の実施形態に係る改修建具の下枠部分の竪断面図である。It is a longitudinal section of a lower frame part of a renovation fitting concerning a 2nd embodiment of the present invention. 本発明の第２の実施形態に係る改修建具の竪枠部分の竪断面図である。It is a vertical sectional view of the vertical frame part of the renovation fitting which concerns on 2nd Embodiment of this invention. 本発明の実施形態に係る改修建具の上枠と竪枠との連結部分の斜視図である。It is a perspective view of the connection part of the upper frame of the renovation fitting and the vertical frame which concern on embodiment of this invention. 本発明の実施形態に係る改修建具の下枠と竪枠との連結部分の斜視図である。It is a perspective view of the connection part of the lower frame and the vertical frame of the renovation fitting which concern on embodiment of this invention.

本発明の第１の実施形態の改修建具として、図１及び図２に示すように、既設の引違い建具の既設枠１の内周に、新設枠２を装着してなる改修建具を用いて説明する。 As shown in FIG. 1 and FIG. 2, as a modified fitting according to the first embodiment of the present invention, a modified fitting obtained by mounting a new frame 2 on the inner periphery of an existing frame 1 of an existing sliding fitting is used. explain.

−第１の実施形態−
（全体の構成）
本実施形態の改修建具は、図１，図２に示すように、既設上枠１１，既設下枠１２，既設竪枠１３，１３からなる既設枠１を除去せずに、既設枠１の内周に新設上枠２１，新設下枠２２，新設竪枠２３，２３からなる新設枠２が配置されている。
なお、本実施形態の改修建具は、左右の竪枠部分についてその主たる構成がほとんど同様であるので、竪枠部分についての説明は右竪枠を用いて行う。 -1st Embodiment-
(Overall configuration)
As shown in FIGS. 1 and 2, the renovation fitting of the present embodiment does not remove the existing frame 1 including the existing upper frame 11, the existing lower frame 12, and the existing vertical frames 13, without removing the existing frame 1. A new frame 2 composed of a new upper frame 21, a new lower frame 22, and new vertical frames 23, 23 is arranged around the periphery.
In addition, since the main structure of the renovation fitting of this embodiment is almost the same about the right and left vertical frame parts, description about a vertical frame part is performed using a right vertical frame.

既設枠１を構成する既設上枠１１，既設下枠１２，既設竪枠１３のそれぞれには上取付補助材３１、下取付補助材３２及び竪取付補助材３３が固定されており、新設枠２は各取付補助材を介して既設枠１に装着されている。
なお、既設枠１は、その全ての部分が除去されずに残存させた状態で取付補助材及び新設枠を装着しても良いが、例えば図１に示す既設下枠１２の室外側下レールが切除されているように、必要に応じて新設枠２を配置するに際して邪魔となる部位が除去されていてもよい。 An upper mounting auxiliary member 31, a lower mounting auxiliary member 32, and a vertical mounting auxiliary member 33 are fixed to each of the existing upper frame 11, the existing lower frame 12, and the existing vertical frame 13 constituting the existing frame 1, and the new installation frame 2 is provided. Are mounted on the existing frame 1 via each mounting auxiliary material.
In addition, the existing frame 1 may be fitted with a mounting auxiliary material and a new frame in a state where all parts thereof are not removed, but for example, the outdoor lower rail of the existing lower frame 12 shown in FIG. As if it were cut off, a part that hinders the placement of the new frame 2 as necessary may be removed.

新設枠２は、左右の新設竪枠２３，２３の上下端部の内周面に新設上枠２１及び新設下枠２２の両端部を突き合わせて組まれており、左右の新設竪枠２３，２３は、新設上枠２１及び新設下枠２２の当接部分において、内周に突出する部材が必要に応じて切欠かれている。 The new frame 2 is formed by abutting the inner peripheral surfaces of the upper and lower ends of the left and right new vertical frames 23, 23 with both ends of the new upper frame 21 and the new lower frame 22. In a portion where the new upper frame 21 and the new lower frame 22 are in contact with each other, a member projecting to the inner periphery is cut off as necessary.

（上枠部分の構成）
既設上枠１１に固定される上取付補助材３１は、見込寸法が既設上枠１１の見込寸法とほぼ同程度の見込寸法を有し、図５に示すように、見付寸法が新設上枠２１の長手方向の長さとほぼ同じ長さ寸法の長尺部材からなる。上取付補助材３１は、新設上枠２１を装着する際の基準となる見込壁部３１ａと、見込壁部３１ａの室内外両端付近より外周方向に延設される室内側固定部３１ｂ及び室外側固定部３１ｃを有している。 (Configuration of upper frame part)
The upper attachment auxiliary member 31 fixed to the existing upper frame 11 has an estimated size that is substantially the same as the expected size of the existing upper frame 11, and as shown in FIG. 21 is made of a long member having substantially the same length as the length in the longitudinal direction. The upper mounting auxiliary member 31 includes a prospect wall portion 31a serving as a reference when the new upper frame 21 is mounted, an indoor-side fixing portion 31b extending in the outer peripheral direction from near both ends of the prospect wall portion 31a inside and outside, and an outdoor side. It has a fixing portion 31c.

そして、見込壁部３１ａが水平となるように見込壁部３１ａの外周側面を既設上枠１１の室内側壁部１１ａ、室外側壁部１１ｂの下端に当接させた状態で、室内側固定部３１ｂ及び室外側固定部３１ｃが既設上枠１１の室内側壁部１１ａの室外側と室外側壁部１１ｂの室内側との間に挿入され、室内側固定部３１ｂが室内側壁部１１ａにビス等の固定手段ｂにより固定され、室外側固定部３１ｃが室外側壁部１１ｂにビス等の固定手段ｂにより固定されている。 Then, in a state where the outer peripheral side surface of the estimation wall portion 31a is in contact with the lower end of the indoor side wall portion 11a of the existing upper frame 11 and the lower end of the outdoor side wall portion 11b so that the estimation wall portion 31a is horizontal, the indoor side fixing portion 31b and The outdoor-side fixing portion 31c is inserted between the outdoor side of the indoor side wall portion 11a of the existing upper frame 11 and the indoor side of the outdoor side wall portion 11b, and the indoor side fixing portion 31b is fixed to the indoor side wall portion 11a by screws or the like. And the outdoor fixing portion 31c is fixed to the outdoor wall portion 11b by fixing means b such as a screw.

新設上枠２１は、既設上枠１１よりも見込寸法が大きく形成されており、見込み方向室内側上面に加熱により膨張する加熱発泡材ｆ１が配置されるとともに、見込み方向の略中央付近において、スペーサー６１を介してビス等の固定手段ｂにより上取付補助材３１の見込壁部３１ａに固定されている。新設上枠２１の室内側下面には、後述する上内部カバー７１を取り付けるための挿入部２１ａを有している。 The new upper frame 21 is formed to have a larger expected size than the existing upper frame 11, and a heated foam material f <b> 1 that expands by heating is arranged on the upper surface of the interior in the expected direction, and a spacer is provided near the approximate center of the estimated direction. It is fixed to the projection wall 31a of the upper attachment auxiliary member 31 by fixing means b such as screws via 61. On the lower surface on the indoor side of the new upper frame 21, an insertion portion 21a for attaching an upper inner cover 71 described later is provided.

新設上枠２１は、室外側外周に気密材ｓを有しており、上取付補助材３１を介して既設上枠１１に固定された新設上枠２１の気密材ｓが既設上枠１１の室外側内周に当接して、既設上枠１１と新設上枠２１との室外側における気密を行っている。 The new upper frame 21 has an airtight material s on the outer periphery of the outdoor side, and the airtight material s of the new upper frame 21 fixed to the existing upper frame 11 via the upper mounting auxiliary material 31 is a chamber of the existing upper frame 11. By contacting the inner periphery of the outside, airtightness between the existing upper frame 11 and the new upper frame 21 on the outdoor side is performed.

新設上枠２１の室内側から既設上枠１１の室内側を覆うように、防水シート８１が設けられるとともに、防水シート８１の室内側には、金属製の上遮炎板９１が配置されている。 A waterproof sheet 81 is provided so as to cover the indoor side of the new upper frame 21 from the indoor side of the existing upper frame 11, and a metal upper flame shield 91 is disposed on the indoor side of the waterproof sheet 81. .

上遮炎板９１は、図６（ａ）に示すように、見込み方向に延びる当接部９１ａと、当接部９１ａの室外側端部から見付け方向（下方）に延びる遮炎部９１ｂと、遮炎部９１ｂの下端から室外方向に延設される開き防止部９１ｃと、を有する断面略カギ状の金属製の長尺部材からなる。 As shown in FIG. 6A, the upper flame shield plate 91 includes a contact portion 91 a extending in the expected direction, a flame shield portion 91 b extending in the finding direction (downward) from the outdoor end of the contact portion 91 a, It is a long metal member having a substantially key shape in cross section and having an opening preventing portion 91c extending from the lower end of the flame shielding portion 91b in the outdoor direction.

そして、上遮炎板９１は、当接部９１ａを躯体開口部の内周面に当接させるとともに遮炎部９１ｂを新設上枠２１の室内側面と既設上枠１１の室内側面に当接させることで、新設上枠２１と既設上枠１１との間の間隙を閉塞するように配置されている。
さらに、上遮炎板９１は、遮炎部９１ｂの下端から室外方向に延設された開き防止部９１ｃが新設上枠２１に室内側面の下端に続く内周面に当接されており、遮炎部９１ｂの上方部分において、既設上枠１１の室内側壁部１１ａと上取付補助材３１の室内側固定部３１ｂを固定する固定手段ｂにより共締め固定されている。 The upper flame shield plate 91 causes the contact portion 91a to contact the inner peripheral surface of the skeleton opening and causes the flame shield portion 91b to contact the indoor side surface of the new upper frame 21 and the indoor side surface of the existing upper frame 11. Thereby, it is arranged so as to close the gap between the new upper frame 21 and the existing upper frame 11.
Further, the upper flame-shielding plate 91 has an opening prevention portion 91c extending from the lower end of the flame-shielding portion 91b in the outdoor direction to abut on the inner peripheral surface following the lower end of the indoor side surface to the newly-installed upper frame 21. In the upper part of the flame part 91b, it is fastened and fixed together by a fixing means b for fixing the indoor side wall part 11a of the existing upper frame 11 and the indoor side fixing part 31b of the upper attachment auxiliary material 31.

防水シート８１及び上遮炎板９１を覆うように樹脂製の上内部カバー７１が配置されている。
樹脂製の上内部カバー７１は、見込み方向に延びる固定部７１ａと、固定部７１ａの室外側端から見付方向（下方）に延設されるとともに下端が室外側に屈曲して室外方向に延設されてなるカバー部７１ｂと、カバー部７１ｂの見込方向に延びる部位の上面から上方に突設された脚部７１ｃと、を有している。
そして、上内部カバー７１は、脚部７１ｃを新設上枠２１の挿入部２１ａに挿入して、固定部７１ａを躯体開口部の内周面に当接させた状態で、固定部７１ａをビス等の固定手段ｂにより固定することで躯体開口部に取り付けられている。 An upper cover 71 made of resin is arranged to cover the waterproof sheet 81 and the upper flame shield 91.
The resin upper inner cover 71 is provided with a fixing portion 71a extending in the expected direction, and extends in the finding direction (downward) from the outdoor end of the fixing portion 71a, and has a lower end bent outward and extends in the outdoor direction. It has a cover 71b provided, and a leg 71c projecting upward from an upper surface of a portion of the cover 71b extending in the viewing direction.
Then, the upper inner cover 71 inserts the leg portion 71c into the insertion portion 21a of the new upper frame 21, and fixes the fixing portion 71a to a screw or the like in a state where the fixing portion 71a is in contact with the inner peripheral surface of the skeleton opening. Is fixed to the opening of the skeleton by the fixing means b.

（下枠部分の構成）
既設下枠１２に固定される下取付補助材３２は、室内側取付補助材３２１と室外側取付補助材３２２の二つの部材からなる。
室内側取付補助材３２１は、アルミニウム合金等の金属材料からなり、新設下枠２２の室内側の荷重を支持する支持部３２１ａと、支持部３２１ａの室内側に連続する取付壁３２１ｂを有し、取付壁３２１ｂが既設下枠１２の室内側の壁面にビス等の固定手段ｂにより固定されている。また、室内側取付補助材３２１の支持部３２１ａは、既設下枠１２の室内側下レールに固定された荷重支持部材３２３にスペーサー６２を介して支持されている。 (Configuration of lower frame)
The lower mounting auxiliary member 32 fixed to the existing lower frame 12 is composed of two members, an indoor mounting auxiliary member 321 and an outdoor mounting auxiliary member 322.
The indoor-side mounting auxiliary member 321 is made of a metal material such as an aluminum alloy, and has a support portion 321a that supports a load on the indoor side of the newly installed lower frame 22, and a mounting wall 321b that is continuous with the support portion 321a on the indoor side, The mounting wall 321b is fixed to the indoor wall surface of the existing lower frame 12 by fixing means b such as a screw. The support portion 321 a of the indoor-side auxiliary mounting member 321 is supported via a spacer 62 by a load support member 323 fixed to the indoor lower rail of the existing lower frame 12.

室外側取付補助材３２２は、新設下枠２２の室外側の荷重を支持する支持部３２２ａ及び新設下枠２２の室外側端部の浮き上がりを防止する浮き上がり防止部３２２ｂを有し、支持部３２２ａがスペーサー６３を介して既設下枠１２に載置された状態で見付け方向の複数位置において、既設下枠１２の前壁部にビス等の固定手段ｂにより固定されている。 The outdoor installation auxiliary member 322 has a support portion 322a for supporting the outdoor load of the newly installed lower frame 22 and a lift prevention portion 322b for preventing the outdoor end of the newly installed lower frame 22 from being lifted. It is fixed to the front wall of the existing lower frame 12 by a fixing means b such as a screw at a plurality of positions in the finding direction while being placed on the existing lower frame 12 via the spacer 63.

新設下枠２２は、既設下枠１２よりも見込寸法が大きく形成されており、室内側見込壁を構成する室内側底壁部２２ａと、室外側見込壁を構成する室外側底壁部２２ｂと、室内側底壁部２２ａの室内側から立ち上がる室内側壁部２２ｃと、室内側壁部２２ｃの上端よりもやや下方位置の室内側面から室内側に延設される室内側上壁部２２ｄと、室内側底壁部２２ａと室外側底壁部２２ｂとを連続する立壁部２２ｅと、室外側底壁部２２ｂの室外側端から下方に向かって延設される前壁部２２ｆと、前壁部２２ｆの下端から室内側に屈曲して延設される浮き上がり防止片２２ｇと、室内側底壁部２２ａの室外側上面に立設される室内下レール２２ｈと、室外側底壁部２２ｂの上面に立設される室外下レール２２ｉと、室内側底壁部２２ａの室外側に延設される気密材保持片２２ｊを有している。 The new lower frame 22 is formed to have a larger expected size than the existing lower frame 12, and has an indoor bottom wall portion 22a forming an indoor expected wall, and an outdoor bottom wall portion 22b forming an outdoor expected wall. An indoor side wall portion 22c rising from the indoor side of the indoor side bottom wall portion 22a, an indoor side upper wall portion 22d extending from the indoor side surface slightly lower than the upper end of the indoor side wall portion 22c to the indoor side, An upright wall portion 22e connecting the bottom wall portion 22a and the outdoor bottom wall portion 22b, a front wall portion 22f extending downward from the outdoor end of the outdoor bottom wall portion 22b, and a front wall portion 22f. A lifting prevention piece 22g bent and extended from the lower end to the indoor side, an indoor lower rail 22h installed on the outdoor upper surface of the indoor bottom wall 22a, and an upper surface of the outdoor bottom wall 22b. Outdoor lower rail 22i and the indoor side bottom wall 22a And a gas-tight material holding piece 22j that extends to.

また、新設下枠２２は、室内側壁部２２ｃの室内側上壁部２２ｄよりも上方部位に後述する下内部カバー７２の室外側を係合する被係合部２２ｋが形成されており、室内側上壁部２２ｄの上面には、下内部カバー７２のカバー部７２ｂを支持するリブが長手方向に沿って形成されている。 Further, the new lower frame 22 is formed with an engaged portion 22k that engages an outdoor side of a lower inner cover 72, which will be described later, at a position above the indoor side upper wall portion 22d of the indoor side wall portion 22c. On the upper surface of the upper wall portion 22d, a rib for supporting the cover portion 72b of the lower inner cover 72 is formed along the longitudinal direction.

そして、新設下枠２２は、室内側底壁部２２ａの下面の内外２か所に形成された脚部を室内側取付補助材３２１の支持部３２１ａに載置した状態で、ビス等の固定手段ｂにより室内側取付補助材３２１に固定され、既設下枠１２に装着されている。
このとき、新設下枠２２の室外側は、必要に応じて室外側取付補助材３２２の支持部３２２ａの上面に支持されており、新設下枠２２の浮き上がり防止片２２ｇが室外側取付補助材３２２の浮き上がり防止部３２２ｂの下方に位置している。 The new lower frame 22 is provided with fixing means such as screws in a state where legs formed at two locations inside and outside of the lower surface of the indoor bottom wall portion 22a are placed on the support portion 321a of the indoor mounting auxiliary member 321. b, it is fixed to the indoor side auxiliary mounting member 321 and is attached to the existing lower frame 12.
At this time, the outdoor side of the newly-installed lower frame 22 is supported on the upper surface of the support portion 322a of the outdoor-side installation auxiliary member 322 as necessary, and the lifting prevention piece 22g of the newly-installed lower frame 22 is attached to the outdoor-side installation auxiliary member 322. Is located below the lifting prevention part 322b.

新設下枠２２の室内側壁部２２ｃの室内側面には、加熱により発泡する加熱発泡材ｆ２が配置されている。
また、新設下枠２２の室内側壁部２２ｃの室外側面、及び、立壁部２２ｅの室外側面には、それぞれホルダーによって加熱により発泡する加熱発泡材ｆが配置されている。 On the indoor side surface of the indoor side wall portion 22c of the new lower frame 22, a heated foam material f2 that foams by heating is arranged.
On the outdoor side surface of the indoor side wall portion 22c of the newly-installed lower frame 22, and on the outdoor side surface of the upright wall portion 22e, a heated foam material f that is foamed by heating by the holder is disposed.

新設下枠２２の室内側上壁部２２ｄの上面から躯体開口部にかけて、防水シート８２が配置されていると共に、室内側上壁部２２ｄの上面から躯体開口部にかけて、金属製の下遮炎板９２が配置されている。 A waterproof sheet 82 is arranged from the upper surface of the indoor upper wall portion 22d of the new lower frame 22 to the skeleton opening, and a metal lower flame shield plate is formed from the upper surface of the indoor upper wall portion 22d to the skeleton opening. 92 are arranged.

下遮炎板９２は、図７（ａ）に示すように、見込み方向に延びる当接部９２ａと、当接部９２ａの室外側から見付け方向（上方）に延びる遮炎部９２ｂと、遮炎部９２ｂの上端から室外側に延びる開き防止部９２ｃを有する断面略カギ状の金属製の長尺部材からなる。 As shown in FIG. 7A, the lower flame shield plate 92 includes a contact portion 92a extending in the expected direction, a flame shield portion 92b extending from the outside of the contact portion 92a in the finding direction (upward), and a flame shield. It is a long member made of metal having a substantially key shape in cross section and having an opening prevention portion 92c extending from the upper end of the portion 92b to the outside of the room.

そして、下遮炎板９２は、当接部９２ａを躯体開口部の内周面に当接させるとともに遮炎部９２ｂを室内側上壁部２２ｄの室内側端部に当接させることで、新設下枠２２と既設下枠１２との間、もしくは新設下枠２２と躯体開口部との間の間隙を閉塞するように配置されている。
さらに、下遮炎板９２は、遮炎部９２ｂの上端に室外方向に延設した開き防止部９２ｃが、新設下枠２２の室内側上壁部２２ｄの上面に当接されており、当接部９２ａにおいて、躯体開口部に対してネジ等の固定手段ｂにより固定されている。 The lower flame shield plate 92 is newly provided by bringing the contact portion 92a into contact with the inner peripheral surface of the skeleton opening and the flame shield portion 92b with the indoor end of the indoor upper wall 22d. It is arranged so as to close a gap between the lower frame 22 and the existing lower frame 12 or a gap between the new lower frame 22 and the frame opening.
Further, in the lower flame shield plate 92, an opening prevention part 92 c extending in the outdoor direction at the upper end of the flame shield part 92 b is in contact with the upper surface of the indoor-side upper wall part 22 d of the new lower frame 22. The portion 92a is fixed to the opening of the skeleton by fixing means b such as a screw.

下遮炎板９２を覆うように樹脂製の下内部カバー７２が配置されている。
樹脂製の下内部カバー７２は、新設下枠２２の室内側上壁部２２ｄの上面から室内側に延びてその後下方に屈曲して延設されるカバー部７２ｂと、カバー部７２ｂの室外側端部の下面に形成された係合凸部７２ｃと、カバー部７２ａの下面から下方に延設された係合爪７２ｅ，７２ｅと、を有する長尺部材からなる。 A lower inner cover 72 made of resin is arranged to cover the lower flame shield plate 92.
The lower inner cover 72 made of resin includes a cover portion 72b extending from the upper surface of the indoor upper wall portion 22d of the newly-installed lower frame 22 to the indoor side, and then bent downward to extend, and an outdoor end of the cover portion 72b. It is formed of a long member having an engaging projection 72c formed on the lower surface of the portion, and engaging claws 72e, 72e extending downward from the lower surface of the cover 72a.

そして、下内部カバー７２は、室外側に形成された係合凸部７２ｃを新設下枠２２の室内側壁部２２ｃに形成された被係合部２２ｋに係合した状態で、係合爪７２ｅ，７２ｅを下遮炎板９２に係合することで、躯体開口部に固定されている。 Then, the lower inner cover 72 engages with the engaging claws 72e, 72c in a state where the engaging convex portion 72c formed on the outdoor side is engaged with the engaged portion 22k formed on the indoor side wall portion 22c of the new lower frame 22. By engaging 72 e with the lower flame shield 92, it is fixed to the opening of the skeleton.

（竪枠部分の構成）
既設竪枠１３に固定される竪取付補助材３３は、見込寸法が既設竪枠１３の見込寸法とほぼ同程度の見込寸法を有し、図５に示すように、見付寸法が新設竪枠２３の長手方向の長さとほぼ同じ長さ寸法の長尺部材からなる。竪取付補助材３３は、新設竪枠２３を装着する際の基準となる見込壁部３３ａと、見込壁部３３ａの室内外両端付近より外周方向に延設される室内側固定部３３ｂ及び室外側固定部３３ｃを有している。 (Configuration of vertical frame part)
The vertical mounting auxiliary member 33 fixed to the existing vertical frame 13 has an estimated size that is substantially the same as the expected size of the existing vertical frame 13, and as shown in FIG. 23 is made of a long member having a length substantially the same as the length in the longitudinal direction. The vertical mounting auxiliary member 33 includes a prospect wall portion 33a serving as a reference when the newly installed vertical frame 23 is mounted, an indoor-side fixing portion 33b extending from the vicinity of both ends of the prospect wall portion 33a inside and outside the room, and an outdoor side. It has a fixing portion 33c.

そして、竪取付補助材３３は、室内側固定部３３ｂ及び室外側固定部３３ｃが既設竪枠１３の室内側壁部１３ａの室外側と室外側壁部１３ｂの室内側との間に挿入されることで、見込壁部３３ａが内周に向く垂直面となるように配置され、室内側固定部３３ｂが室内側壁部１３ａにビス等の固定手段ｂにより固定され、室外側固定部３３ｃが室外側壁部１３ｂにビス等の固定手段ｂにより固定されている。 Then, the vertical mounting auxiliary member 33 is inserted between the indoor side of the indoor side wall portion 13a of the existing vertical frame 13 and the indoor side of the outdoor side wall portion 13b with the indoor side fixing portion 33b and the outdoor side fixing portion 33c. The interior wall fixing portion 33b is fixed to the interior side wall portion 13a by a fixing means b such as a screw, and the outdoor side fixing portion 33c is fixed to the outdoor side wall portion 13b. Are fixed by fixing means b such as screws.

新設竪枠２３は、既設竪枠１３よりも見込寸法が大きく形成されており、見込み方向室内側外周面に加熱により発泡する加熱発泡材ｆ３が配置されるとともに、見込み方向の略中央付近において、スペーサー６４を介してビス等の固定手段ｂにより竪取付補助材３３の見込壁部３３ａに固定されている。新設竪枠２３の室内側内周面には、後述する竪内部カバー７３を取り付けるための挿入部２３ａを有している。 The new vertical frame 23 is formed to have a larger expected dimension than the existing vertical frame 13, and a heated foam material f <b> 3 foamed by heating is arranged on the outer peripheral surface on the indoor side in the expected direction. It is fixed to the projection wall 33a of the vertical mounting auxiliary member 33 by fixing means b such as screws via a spacer 64. The inner vertical surface of the new vertical frame 23 has an insertion portion 23a for attaching a vertical inner cover 73 described later.

新設竪枠２３は、室外側外周に気密材ｓを有しており、竪取付補助材３３を介して既設竪枠１３に固定された新設竪枠２３の気密材ｓが既設竪枠１３の室外側内周に当接して、既設竪枠１３と新設竪枠２３との室外側における気密を行っている。 The new vertical frame 23 has an airtight material s on the outer periphery of the outdoor side, and the airtight material s of the new vertical frame 23 fixed to the existing vertical frame 13 via the vertical mounting auxiliary material 33 is a chamber of the existing vertical frame 13. The airtightness of the existing vertical frame 13 and the new vertical frame 23 on the outdoor side is performed by contacting the outer inner periphery.

新設竪枠２３の室内側から既設竪枠１３の室内側を覆うように、防水シート８３が設けられており、防水シート８３の室内側には、金属製の竪遮炎板９３が配置されている。 A waterproof sheet 83 is provided so as to cover the indoor side of the existing vertical frame 13 from the indoor side of the new vertical frame 23, and a metal vertical flame shield plate 93 is disposed on the indoor side of the waterproof sheet 83. I have.

竪遮炎板９３は、図８（ａ）に示すように、見込み方向に延びる当接部９３ａと、当接部９３ａの室外側端部から見付け方向（内周方向）に延びる遮炎部９３ｂと、遮炎部９３ｂの内周端から室外方向に延設される開き防止部９３ｃと、を有する断面略カギ状の金属製の長尺部材からなる。 As shown in FIG. 8A, the vertical flame shield plate 93 has a contact portion 93a extending in the expected direction and a flame shield portion 93b extending in the finding direction (inner circumferential direction) from the outdoor end of the contact portion 93a. And an opening preventing portion 93c extending in the outdoor direction from the inner peripheral end of the flame shielding portion 93b.

そして、竪遮炎板９３は、当接部９３ａを躯体開口部の内周面に当接させるとともに遮炎部９３ｂを新設竪枠２３の室内側面と既設竪枠１３の室内側面に当接させることで、新設竪枠２３と既設竪枠１３との間の間隙を閉塞するように配置されている。 Then, the vertical flame shield plate 93 causes the contact portion 93a to contact the inner peripheral surface of the skeleton opening and the flame shield portion 93b to contact the indoor side surface of the new vertical frame 23 and the indoor side surface of the existing vertical frame 13. Thereby, it is arranged so as to close the gap between the new vertical frame 23 and the existing vertical frame 13.

さらに、竪遮炎板９３は、遮炎部９３ｂの内周端から室外方向に延設された開き防止部９３ｃが、新設竪枠２３の室内側面に続く内周面に当接されており、遮炎部９３ｂの外周側部位において、既設竪枠１３の室内側壁部１３ａと竪取付補助材３３の室内側固定部３３ｂを固定する固定手段ｂにより共締め固定されている。 Further, in the vertical flame shield plate 93, an opening prevention portion 93c extending in the outdoor direction from the inner peripheral end of the flame shield portion 93b is in contact with an inner peripheral surface following the indoor side surface of the new vertical frame 23, At the outer peripheral side portion of the flame shielding portion 93b, they are fixed together by fixing means b for fixing the indoor side wall portion 13a of the existing vertical frame 13 and the indoor side fixing portion 33b of the vertical mounting auxiliary member 33.

防水シート８３及び竪遮炎板９３を覆うように樹脂製の竪内部カバー７３が配置されている。
樹脂製の竪内部カバー７３は、見込み方向に延びる固定部７３ａと、固定部７３ａの室外側端から見付方向（内周方向）に延設されるとともに内周端が室外側に屈曲して室外方向に延設されてなるカバー部７３ｂと、カバー部７３ｂの見込方向に延びる部位の外周面から外周方向に突設された脚部７３ｃと、を有している。 A vertical inner cover 73 made of resin is disposed so as to cover the waterproof sheet 83 and the vertical flame shield 93.
The vertical inner cover 73 made of resin is provided with a fixing portion 73a extending in the expected direction, and extends in the finding direction (inner circumferential direction) from the outdoor end of the fixing portion 73a, and the inner peripheral end is bent outward. It has a cover 73b extending in the outdoor direction, and a leg 73c protruding in the outer peripheral direction from the outer peripheral surface of a portion of the cover 73b extending in the viewing direction.

そして、竪内部カバー７３は、脚部７３ｃを新設竪枠２３の挿入部２３ａに挿入して、固定部７３ａを躯体開口部の内周面に当接させた状態で、固定部７３ａをビス等の固定手段ｂにより固定することで躯体開口部に取り付けられている。
なお、竪遮炎板９３は、例えば図２（ｂ）に示すように、新設竪枠２３と既設竪枠１３との間の間隙を閉塞するように配置されるものであれば、アルミ形材からなる長尺部材によって形成されてもよい。 Then, the vertical inner cover 73 inserts the leg portion 73c into the insertion portion 23a of the new vertical frame 23, and fixes the fixing portion 73a to a screw or the like in a state where the fixing portion 73a is in contact with the inner peripheral surface of the frame opening. Is fixed to the opening of the skeleton by the fixing means b.
In addition, as shown in FIG. 2B, for example, as shown in FIG. 2 (b), the vertical flame shield plate 93 may be formed of an aluminum material if it is disposed so as to close the gap between the new vertical frame 23 and the existing vertical frame 13. May be formed by a long member made of

以上の第１の実施形態の遮炎板によれば、躯体開口部の内周面に対向する当接部を備えているので、遮炎板を取り付ける際に当接部を躯体内周面にあてて既設枠の方向に滑らせることで、見込み方向及び見付け方法の位置決めを簡単に行うことができる。
また、本実施形態の遮炎板によれば、見付け方向に延びる遮炎部と見込み方向に延びる当接部とのどちらの部分においてもネジ止め固定ができ、異なる２方向からの固定が可能であるので、施工性が良好であるとともに、見付方向に延びる遮炎部を既設枠に固定することによって、老朽化した既設枠を補強することができる。 According to the flame shield plate of the first embodiment described above, since the contact portion facing the inner peripheral surface of the skeleton opening is provided, the contact portion is attached to the peripheral surface of the skeleton when the flame shield plate is attached. By sliding in the direction of the applied frame, positioning of the expected direction and the finding method can be easily performed.
Further, according to the flame shield plate of the present embodiment, screw fixing can be performed on both the flame shield part extending in the finding direction and the contact part extending in the prospective direction, and fixing from two different directions is possible. Therefore, the workability is good, and the deteriorated existing frame can be reinforced by fixing the flame-shielding portion extending in the finding direction to the existing frame.

−第２の実施形態―
次に、本発明の第２の実施形態の改修建具について、図３，図４を参考にして説明する。なお、第２の実施形態の改修建具は、内部カバーがアルミニウム合金等の金属により形成されている点で、第１の実施形態の改修建具と異なっている。以下の説明においては、主に、第１の実施形態と異なる点について説明し、同様の構成については説明を省略する。 -Second embodiment-
Next, a modified fitting according to a second embodiment of the present invention will be described with reference to FIGS. The modified fitting of the second embodiment differs from the modified fitting of the first embodiment in that the inner cover is formed of a metal such as an aluminum alloy. In the following description, points different from the first embodiment will be mainly described, and description of the same configuration will be omitted.

（上枠部分の構成）
本実施形態の改修建具においては、図３に示すように、新設上枠２１の室内側から既設上枠１１の室内側を覆うように防水シート８１が設けられるとともに、防水シート８１を覆うようにアルミニウム合金等の金属製の上内部カバー（上遮炎板）７１が配置されている。 (Configuration of upper frame part)
In the renovation fitting of the present embodiment, as shown in FIG. 3, the waterproof sheet 81 is provided so as to cover the indoor side of the existing upper frame 11 from the indoor side of the new upper frame 21, and to cover the waterproof sheet 81. An upper inner cover (upper flame shield) 71 made of metal such as an aluminum alloy is provided.

金属製の上内部カバー７１は、見込み方向に延びる固定部（当接部）７１ａと、固定部７１ａの室外側端から見付方向（下方）に延設されるとともに下端が室外側に屈曲して見込方向（室外方向）に延設されてなるカバー部（遮炎部）７１ｂと、カバー部７１ｂの見込方向に延びる部位の上面から上方に突設された脚部（開き防止部）７１ｃと、を有している。 The metal upper inner cover 71 is provided with a fixing portion (abutting portion) 71a extending in the expected direction, and extending in the finding direction (downward) from the outdoor end of the fixing portion 71a, and has a lower end bent outward. A cover portion (flame shielding portion) 71b extending in the viewing direction (outdoor direction); and a leg portion (opening prevention portion) 71c projecting upward from the upper surface of a portion of the cover portion 71b extending in the viewing direction. ,have.

そして、上内部カバー７１は、固定部（当接部）７１ａを躯体開口部の内周面に当接させるとともに、カバー部（遮炎部）７１ｂの見込方向に延びる部位の室外側端を新設上枠２１の室内側面に当接させることで、新設上枠２１と既設上枠１１との間の間隙を閉塞するように配置されている。
さらに、上内部カバー７１は、カバー部７１ｂの見込方向に延びる部位に延設した脚部（開き防止部）７１ｃが新設上枠２１の挿入部２１ａに挿入された状態で、固定部（当接部）７１ａにおいて、ビス等の固定手段ｂにより躯体開口部に固定されている。 The upper inner cover 71 makes the fixing portion (contact portion) 71a contact the inner peripheral surface of the opening of the skeleton, and also newly establishes an outdoor end of a portion extending in the viewing direction of the cover portion (flame shielding portion) 71b. The upper frame 21 is arranged so as to close the gap between the new upper frame 21 and the existing upper frame 11 by making contact with the indoor side surface.
Further, the upper inner cover 71 has a fixing portion (abutting portion) with a leg portion (opening prevention portion) 71c extending to a portion extending in the viewing direction of the cover portion 71b being inserted into the insertion portion 21a of the new upper frame 21. (A) 71a, is fixed to the opening of the skeleton by fixing means b such as a screw.

（下枠部分の構成）
本実施形態の改修建具においては、図３に示すように、新設下枠２２の室内側上壁部２２ｄの上面から躯体開口部にかけて、防水シート８２が配置されていると共に、室内側上壁部２２ｄの上面から躯体開口部にかけて、防水シート８２を覆うように金属製の下内部カバー（下遮炎板）７２が配置されている。 (Configuration of lower frame)
In the renovated fitting according to the present embodiment, as shown in FIG. 3, the waterproof sheet 82 is arranged from the upper surface of the indoor upper wall 22 d of the newly installed lower frame 22 to the skeleton opening, and the indoor upper wall is A lower inner cover (lower flame shield) 72 made of metal is arranged so as to cover the waterproof sheet 82 from the upper surface of 22d to the opening of the skeleton.

金属製の下内部カバー７２は、新設下枠２２の室内側上壁部２２ｄの上面から室内側に延びてその後下方に屈曲して形成されるカバー部（遮炎部）７２ｂと、カバー部７２ｂの室外側端部の下面に形成された係合凸部（開き防止部）７２ｃと、カバー部７２ｂの下面から下方に延設された複数のリブ状部（当接部）７２ｄ，７２ｄと、を有する長尺部材からなる。 The metal lower inner cover 72 extends from the upper surface of the indoor upper wall portion 22d of the new lower frame 22 to the indoor side and is bent downward thereafter, and a cover portion (flame shielding portion) 72b and a cover portion 72b An engagement convex portion (opening prevention portion) 72c formed on the lower surface of the outdoor end of the vehicle, and a plurality of rib-like portions (contact portions) 72d, 72d extending downward from the lower surface of the cover portion 72b; It consists of a long member which has.

そして、下内部カバー７２は、カバー部７２ｂの室外側端を新設下枠２２の室内側壁部２２ｃに当接させ係合凸部７２ｃを新設下枠２２の被係合部２２ｋに係合させるとともに、カバー部７２ｂの下面を室内側上壁部２２ｄの上面に形成されたリブによって支持し、カバー部７２ｂの室内側下端部（当接部）７２ａもしくはリブ状部（当接部）７２ｄ，７２ｄの少なくともいずれかを躯体開口部の内周面に当接させることによって、新設下枠２２と既設下枠１２との間もしくは新設下枠２２と躯体開口部との間の間隙を閉塞するように配置され、躯体開口部に対してネジ等の固定手段ｂにより固定されている。 The lower inner cover 72 causes the outdoor end of the cover portion 72b to abut on the indoor side wall portion 22c of the new lower frame 22, and engages the engaging projection 72c with the engaged portion 22k of the new lower frame 22. The lower surface of the cover portion 72b is supported by a rib formed on the upper surface of the indoor upper wall portion 22d, and the indoor lower end portion (contact portion) 72a or the rib-shaped portions (contact portions) 72d, 72d of the cover portion 72b. At least one of which abuts the inner peripheral surface of the skeleton opening so as to close the gap between the new lower frame 22 and the existing lower frame 12 or between the new lower frame 22 and the skeleton opening. It is arranged and fixed to the frame opening by fixing means b such as a screw.

（竪枠部分の構成）
本実施形態の改修建具においては、図４に示すように、新設竪枠２３の室内側及び既設竪枠１３の室内側を覆うように防水シート８３が設けられており、防水シート８３を覆うようにアルミニウム合金等の金属製の竪内部カバー７３が配置されている。 (Configuration of vertical frame part)
In the renovation fitting of the present embodiment, as shown in FIG. 4, a waterproof sheet 83 is provided so as to cover the indoor side of the new vertical frame 23 and the indoor side of the existing vertical frame 13, and covers the waterproof sheet 83. A vertical inner cover 73 made of a metal such as an aluminum alloy is disposed at the bottom.

金属製の竪内部カバー７３は、見込み方向に延びる固定部（当接部）７３ａと、固定部７３ａの室外側端から見付方向（内周方向）に延設されるとともに内周端が室外側に屈曲して見込方向（室外方向）に延設されて形成されるカバー部（遮炎部）７３ｂと、カバー部７３ｂの見込方向に延びる部位の外周面から外周方向に突設された脚部（開き防止部）７３ｃと、を有している。
そして、竪内部カバー７３は、固定部（当接部）７３ａを躯体開口部の内周面に当接させるとともに、カバー部（遮炎部）７３ｂの見込方向に延びる部位の室外側端を新設竪枠２３の室内側面に当接させることで、新設竪枠２３と既設竪枠１３との間の間隙を閉塞するように配置されている。
さらに、竪内部カバー７３は、カバー部７３ｂの見込方向に延びる部位に延設した脚部（開き防止部）７３ｃが新設竪枠２３の挿入部２３ａに挿入された状態で、固定部（当接部）７３ａにおいて、ビス等の固定手段ｂにより躯体開口部に固定されている。 The metal vertical inner cover 73 is provided with a fixing portion (abutting portion) 73a extending in the expected direction, and extending in the finding direction (inner circumferential direction) from the outdoor end of the fixing portion 73a, and has an inner peripheral end formed in the chamber. A cover portion (flame shielding portion) 73b formed to bend outward and extend in the viewing direction (outdoor direction), and legs projecting from the outer circumferential surface of a portion of the cover portion 73b extending in the viewing direction. (Opening prevention part) 73c.
The vertical inner cover 73 allows the fixing portion (contact portion) 73a to abut on the inner peripheral surface of the skeleton opening, and also newly establishes an outdoor end of a portion extending in the viewing direction of the cover portion (flame shielding portion) 73b. It is arranged so as to close the gap between the new vertical frame 23 and the existing vertical frame 13 by making contact with the indoor side surface of the vertical frame 23.
Further, the vertical inner cover 73 has a fixing portion (abutting portion) with a leg portion (opening prevention portion) 73c extended to a portion extending in the viewing direction of the cover portion 73b inserted into the insertion portion 23a of the new vertical frame 23. (Part) 73a is fixed to the opening of the skeleton by fixing means b such as a screw.

以上の第２の実施形態の遮炎板（内部カバー）によれば、躯体開口部の内周面に対向する当接部を備えているので、遮炎板を取り付ける際に当接部を躯体内周面にあてることで、位置決めを容易に行うことができる。
また、遮炎板には、遮炎部の見込み方向への移動を防止する開き防止部を備えているので、火災時に遮炎板の反り等の変形を抑えることができ、新設枠と遮炎板との間に隙間が生じるのを抑制することができる。 According to the flame shield plate (inner cover) of the second embodiment described above, since the contact portion facing the inner peripheral surface of the frame opening is provided, the contact portion is attached to the frame when the flame shield plate is attached. Positioning can be easily performed by contacting the inner peripheral surface.
In addition, since the flame shield plate has an opening prevention part that prevents the flame shield part from moving in the expected direction, deformation such as warpage of the flame shield plate during a fire can be suppressed, and the new frame and the flame shield The formation of a gap between the plate and the plate can be suppressed.

次に、本実施形態の改修建具における防火構造について、さらに詳細に説明する。
本実施形態の改修建具の新設上枠２１は、図６（ａ），図９（ａ）に示すように、見込み方向の室内側端部位置において、外周面に長手方向全長にわたってホルダー２１ｂが形成されており、ホルダー２１ｂには、加熱発泡材ｆ１が保持されている。 Next, the fire prevention structure in the renovated fitting of the present embodiment will be described in more detail.
As shown in FIGS. 6 (a) and 9 (a), the new upper frame 21 of the renovated fitting according to the present embodiment has a holder 21b formed on the outer peripheral surface at the indoor side end position in the expected direction over the entire length in the longitudinal direction. The holder 21b holds a heated foam material f1.

ホルダー２１ｂに保持された加熱発泡材ｆ１は、図５に示すように、新設上枠２１の長手方向全長と同程度の寸法を有し、既設上枠１１に固定された上取付補助材３１の見込壁部３１ａに対して、スペーサー６１をはさんでほぼ全長にわたって対向している。 As shown in FIG. 5, the heated foam material f <b> 1 held by the holder 21 b has the same size as the entire length in the longitudinal direction of the new upper frame 21, and the upper foam auxiliary material 31 fixed to the existing upper frame 11. It faces almost the entire length of the prospect wall 31a with the spacer 61 interposed therebetween.

したがって、火災時には、図６（ｂ），図９（ｂ）に示すように、新設上枠２１の室内側上面に配置された加熱発泡材ｆ１が発泡し、新設上枠２１と上取付補助材３１の見込壁部３１ａとの間で長手方向全長に亘って均一に充満するので、上枠部における室内外の連通を確実に防止することができる。 Therefore, in the event of a fire, as shown in FIGS. 6 (b) and 9 (b), the heating foam material f1 arranged on the upper surface of the new upper frame 21 on the indoor side foams, and the new upper frame 21 and the upper mounting auxiliary material are formed. Since the space between the inside and outside of the space 31 is uniformly filled over the entire length in the longitudinal direction, communication between the upper frame portion and the interior and exterior of the room can be reliably prevented.

この時、図６に示す第１の実施形態においては、上遮炎板９１の遮炎部９１ｂが発泡した加熱発泡材ｆ１が新設上枠２１の室内側部と既設上枠１１の室内側部との間から漏れ出すことを防止するので、新設上枠２１の室内側端部位置において加熱発泡材ｆ１を密に充満させることができる。 At this time, in the first embodiment shown in FIG. 6, the heated foaming material f1 in which the flame shielding portion 91b of the upper flame shielding plate 91 has foamed the indoor side of the new upper frame 21 and the indoor side of the existing upper frame 11. , The heated foam f1 can be densely filled at the indoor side end position of the new upper frame 21.

本実施形態の改修建具の新設下枠２２は、図７（ａ），図１０（ａ）に示すように、室内側壁部２２ｃの室内側面に長手方向全長にわたってホルダー２２ｍが形成されており、ホルダー２２ｍには加熱発泡材ｆ２が保持されている。 As shown in FIGS. 7 (a) and 10 (a), the newly installed lower frame 22 of the renovated fitting according to the present embodiment has a holder 22m formed over the entire length in the longitudinal direction on the indoor side surface of the indoor side wall 22c. The heated foam material f2 is held at 22 m.

ホルダー２２ｍに保持された加熱発泡材ｆ２は、図５に示すように、新設下枠２２の長手方向全長にわたって配置されており、室内側上壁部２２ｄの下方において既設下枠１２の室内側の垂直部位に対向している。
したがって、火災時には、図７（ｂ），図１０（ｂ）に示すように、新設下枠２２の室内側壁部２２ｃの室内側面に配置された加熱発泡材ｆ２が発泡し、新設下枠２２の室内側壁部２２ｃ及び室内側上壁部２２ｄと既設下枠１２とで形成される空間において迅速に充満し、下枠部における室内外の連通を確実に防止することができる。 As shown in FIG. 5, the heated foam material f2 held by the holder 22m is disposed over the entire length of the newly provided lower frame 22 in the longitudinal direction, and is located below the indoor upper wall portion 22d on the indoor side of the existing lower frame 12. It faces the vertical part.
Therefore, in the event of a fire, as shown in FIGS. 7 (b) and 10 (b), the heated foam material f2 arranged on the indoor side surface of the indoor side wall portion 22c of the new lower frame 22 foams, and the new lower frame 22 The space formed by the indoor side wall portion 22c, the indoor side upper wall portion 22d, and the existing lower frame 12 is quickly filled, and communication between the lower frame portion and the room can be reliably prevented.

この時、図７に示す第１の実施形態においては、下遮炎板９２の遮炎部９２ｂが、発泡した加熱発泡材ｆ２が新設下枠２２の室内側上壁部２２ｄと躯体開口部及び既設下枠１２との間から室内側に漏れ出すことを防止して、新設下枠２２の室内側端部位置において加熱発泡材ｆ２を密に充満させることができる。 At this time, in the first embodiment shown in FIG. 7, the flame-insulating portion 92b of the lower flame-insulating plate 92 is formed by heating the foamed heated foam material f2 with the indoor-side upper wall 22d of the newly-installed lower frame 22, the frame opening, and Leakage from the space between the existing lower frame 12 and the indoor side is prevented, and the heated foam material f2 can be densely filled at the indoor side end position of the new lower frame 22.

本実施形態の改修建具の新設竪枠２３は、図８（ａ），図１１（ａ）に示すように、見込み方向の室内側端部位置において、外周面に長手方向全長にわたってホルダー２３ｂが形成されており、ホルダー２３ｂには加熱発泡材ｆ３が保持されている。 As shown in FIGS. 8 (a) and 11 (a), the new vertical frame 23 of the renovated fitting of the present embodiment has a holder 23b formed on the outer peripheral surface at the indoor end position in the expected direction over the entire length in the longitudinal direction. The heated foam f3 is held in the holder 23b.

ホルダー２３ｂに保持された加熱発泡材ｆ３は、図５に示すように、新設竪枠２３の長手方向全長にわたって配置されており、既設竪枠１３に固定された竪取付補助材３３の見込壁部３３ａに対して、スペーサー６４をはさんでほぼ全長にわたって対向している。 As shown in FIG. 5, the heated foam material f <b> 3 held by the holder 23 b is disposed over the entire length of the new vertical frame 23 in the longitudinal direction, and the expected wall portion of the vertical mounting auxiliary member 33 fixed to the existing vertical frame 13. The spacer 33 is opposed to almost the entire length with the spacer 64 interposed therebetween.

したがって、火災時には、図８（ｂ），図１１（ｂ）に示すように、新設竪枠２３の室内側外周面に配置された加熱発泡材ｆ３が発泡し、対向する竪取付補助材３３の見込壁部３３ａと新設竪枠２３との間で長さ方向全長に亘って均一に充満するので、室内外の連通を確実に防止することができる。 Therefore, in the event of a fire, as shown in FIGS. 8 (b) and 11 (b), the heated foam material f3 arranged on the indoor side outer peripheral surface of the new vertical frame 23 foams, and the opposed vertical mounting auxiliary material 33 Since the space between the prospect wall portion 33a and the newly installed vertical frame 23 is uniformly filled over the entire length in the length direction, communication between the inside and outside of the room can be reliably prevented.

この時、図８に示す第１の実施形態においては、竪遮炎板９３の遮炎部９３ｂが既設竪枠１３の室内側と新設竪枠２３の室内側との間から発泡した加熱発泡材ｆ３が室内側に漏れ出すことを防止して、新設竪枠２３の室内側端部位置において加熱発泡材ｆ３を密に充満させることができる。 At this time, in the first embodiment shown in FIG. 8, the heated foam material in which the flame-shielding portion 93 b of the vertical flame-insulating plate 93 foams from between the indoor side of the existing vertical frame 13 and the indoor side of the new vertical frame 23. By preventing f3 from leaking into the room, the heated foam material f3 can be densely filled at the position of the new vertical frame 23 on the room side.

そして、以上説明した、新設上枠２１の外周面に長手方向全長に亘って配置された加熱発泡材ｆ１と、左右の新設竪枠２３の外周面に長手方向全長に亘って配置された加熱発泡材ｆ３，ｆ３は、見込み方向で同一位置に位置されており、図５に示すように、新設上枠２１と新設竪枠２３とのコーナー部においてほぼ連続している。 As described above, the heating foam material f1 arranged on the outer peripheral surface of the new upper frame 21 over the entire length in the longitudinal direction, and the heat foaming material f1 arranged on the outer peripheral surfaces of the left and right new vertical frames 23 over the entire length in the longitudinal direction. The members f3 and f3 are located at the same position in the expected direction, and are substantially continuous at the corners of the new upper frame 21 and the new vertical frame 23 as shown in FIG.

また、新設下枠２２の室内側壁部２２ｃの室内側面に長手方向全長に亘って配置された加熱発泡材ｆ２は、新設上枠２１と新設竪枠２３に配置される加熱発泡材ｆ１，ｆ３の室外側端部位置にあわせて配置されているので、各新設枠に配置される加熱発泡材ｆ１，ｆ２，ｆ３が、新設枠２の四周にわたって見込み方向の位置をあわせて連続して配置されている。
なお、ここでいう連続しているとは、加熱発泡材同士が必ずしも当接していなければならないものではなく、近接することなどによって機能上連続した状態にあればよい。 Further, the heating foam material f2 arranged on the indoor side surface of the indoor side wall portion 22c of the new lower frame 22 over the entire length in the longitudinal direction is the same as the heating foam materials f1 and f3 arranged on the new upper frame 21 and the new vertical frame 23. Since the heating foam materials f1, f2, and f3 arranged in the respective new frames are continuously arranged in the expected directions over the four circumferences of the new frame 2, since they are arranged in accordance with the outdoor end position. I have.
The term “continuous” as used herein does not necessarily mean that the heat-foamed materials are in contact with each other, but it is sufficient that the heat-foamed materials are functionally continuous by being close to each other.

そして、火災時には、各加熱発泡材ｆ１，ｆ２，ｆ３が、それぞれ新設枠２と既設枠１もしくは躯体開口部との間の空間に充満し、図１２，図１３に示すように、新設上枠２１と新設竪枠２３とのコーナー部及び新設下枠２２と新設竪枠２３とのコーナー部において密に連続することで、新設枠２と既設枠１もしくは補助部材３との間に四周に亘る防火ラインを形成する。 In the event of a fire, each of the foamed heating materials f1, f2, and f3 fills the space between the new frame 2 and the existing frame 1 or the opening of the skeleton, respectively, and as shown in FIGS. The corners between the new frame 21 and the new vertical frame 23 and the corners between the new lower frame 22 and the new vertical frame 23 are densely continuous, so that four rounds are provided between the new frame 2 and the existing frame 1 or the auxiliary member 3. Form a fire protection line.

以上のように、本実施形態の改修建具によれば、新設枠の見込み方向端部位置の外周に加熱発泡材を四周に連続するように配置して、火災時には、各加熱発泡材がつながって四周にわたって防火ラインを形成するので、改修建具の既設枠と新設枠との間が室内外に連通するのを防止して、高い防火性能を付与することができる。 As described above, according to the refurbished fitting of the present embodiment, the heated foam material is arranged on the outer periphery of the prospective end position of the new frame so as to be continuous four times, and in the event of a fire, each heated foam material is connected. Since the fire protection line is formed over four rounds, it is possible to prevent the communication between the existing frame and the new frame of the renovated fitting to communicate indoors and outdoors, and to provide high fire protection performance.

また、加熱発泡材を、見込み方向の端部位置に配置するとともに、取付補助材もしくは既設枠等の平面部分に対向するように配置することで、加熱発泡材の膨張が偏ることなく安定して、比較的少ない量の加熱発泡材によって新設枠との間隙に確実に充満させることができる。 Further, by disposing the heating foam material at the end position in the expected direction and arranging it so as to face a plane portion such as the mounting auxiliary material or the existing frame, the expansion of the heating foam material is stabilized without bias. The gap with the new frame can be reliably filled with a relatively small amount of the heated foam.

なお、以上の実施形態は，請求項に記載された発明を限定するものではなく，例示として取り扱われることは言うまでもない。
例えば、新設枠２に配置される加熱発泡材は、ホルダーによって保持するのではなく、接着剤やビス等によって固定してもよい。
また、加熱発泡材が配置される見込み方向端部は、室内側端部に限定されず、室外側端部でもよい。
さらに、改修される既設枠及び新設建具は、引違い建具に限定されるものではなく、開き建具やすべり出し建具等、建具の種類は何ら限定されるものではない。 It is needless to say that the above embodiments do not limit the invention described in the claims but are treated as examples.
For example, the heat-foaming material arranged in the new frame 2 may be fixed with an adhesive or a screw instead of being held by the holder.
Further, the end in the expected direction in which the heated foam material is disposed is not limited to the indoor end, and may be the outdoor end.
Furthermore, the existing frames and new fittings to be repaired are not limited to sliding fittings, and the types of fittings such as open fittings and extending fittings are not limited at all.

１：既設枠
１１：既設上枠
１２：既設下枠
１３：既設竪枠
２：新設枠
２１：新設上枠
２２：新設下枠
２３：新設竪枠
３：補助部材
３１：上取付補助材
３２：下取付補助材
３３：竪取付補助材
９１：上遮炎板
９２：下遮炎板
９３：竪遮炎板

1: Existing frame 11: Existing upper frame 12: Existing lower frame 13: Existing vertical frame 2: Newly installed frame 21: Newly installed upper frame 22: Newly installed lower frame 23: Newly installed vertical frame 3: Auxiliary member 31: Upper mounting auxiliary material 32: Lower mounting auxiliary material 33: Vertical mounting auxiliary material 91: Upper flame shield 92: Lower flame shield 93: Vertical flame shield

Claims

A new frame consisting of a new upper frame, a new lower frame, and left and right new vertical frames is attached to the existing frame remaining in the opening of the skeleton via mounting auxiliary materials,
Each new frame is provided at the end position in the anticipated direction so that the heated foam material is continuous around the entire length in the lengthwise direction,
The refurbished fittings that form the fire protection line continuously when the foamed material placed in each new frame foams in the event of a fire.