JP5117923B2

JP5117923B2 - Refractory zone

Info

Publication number: JP5117923B2
Application number: JP2008124545A
Authority: JP
Inventors: 常浩永田
Original assignee: 株式会社エービーシー商会
Priority date: 2008-05-12
Filing date: 2008-05-12
Publication date: 2013-01-16
Anticipated expiration: 2028-05-12
Also published as: JP2009275345A

Description

本発明は、床面及び壁面に連なる間隙内に装着した耐火帯に関する。 The present invention relates to a refractory belt mounted in a gap continuous with a floor surface and a wall surface.

隣接する建物の躯体間隙を被閉するためにエキスパンションジョイントカバーを設置し、その裏方に防火或いは遮炎の目的で耐火帯を設置することがある。
従来の耐火帯は、例えば、一端を一方の躯体に固定し、他端を他方の躯体に固定し、耐火帯の幅を間隙幅よりも幅広にして間隙内に大きく弛ませ、躯体の変動を吸収できるようにしていた。このような耐火帯は、間隙の幅が狭まる或いは広がる変動に対しては対応できるが、躯体が長手方向にずれる変動に対しては耐火帯がねじれる方向に力がかかるので対応しにくく、耐火帯がねじれて破損してしまうことがあった。 In some cases, an expansion joint cover is installed to close the gap between adjacent buildings, and a fireproof zone is installed behind the expansion joint cover for the purpose of fire prevention or flame shielding.
For example, a conventional refractory belt has one end fixed to one casing and the other end fixed to the other casing, and the width of the refractory band is wider than the gap width so as to be loosened in the gap, thereby causing fluctuations in the casing. I was able to absorb it. Such a refractory zone can cope with fluctuations in which the width of the gap is narrowed or widened, but it is difficult to cope with fluctuations in which the casing is displaced in the longitudinal direction because a force is applied in the direction in which the refractory zone is twisted. Sometimes twisted and damaged.

そこで、下記特許文献１には、左右に二分割し、それぞれの一端部を左右の躯体にそれぞれ固定し、他端部を所定量重なり合うように配し、間隙内に設けた耐火帯支持部材で支持するようにした耐火壁が示され、下記特許文献２には、図４に示すように、一端側に、躯体にスライド可能に掛止可能な掛止部１１を設けた耐火帯１０が示されており、躯体が長手方向にずれる変動をしても対応できるようにしてある。 Therefore, in Patent Document 1 described below, a fireproof support member provided in the gap is divided into left and right parts, each one end is fixed to the left and right housings, and the other end is arranged to overlap by a predetermined amount. A fireproof wall that is supported is shown, and in Patent Document 2 shown below, as shown in FIG. 4, a fireproof zone 10 having a latching portion 11 that can be slidably latched on a housing is shown on one end side. Therefore, it is possible to cope with fluctuations that the casing is displaced in the longitudinal direction.

特開平１０−１８４７３号公報Japanese Patent Laid-Open No. 10-18473 特開２００２−５４２５１号公報Japanese Patent Laid-Open No. 2002-54251

しかし、上記特許文献１に記載の耐火壁は、左右の耐火帯を重ね合わせただけの構成としてあるため、大きな変動が起きた場合は、耐火帯が捲れ上がって空隙ができ、防火及び遮炎機能を果たさなくなるおそれがあった。 However, since the fire wall described in Patent Document 1 has a configuration in which the left and right fire zones are simply overlapped, when a large fluctuation occurs, the fire zone is swollen to create a gap, and fire and flame insulation. There was a risk that it would fail to function.

また、上記特許文献２に記載の耐火帯１０を、床面及び壁面に連なる間隙に装着する場合、図５に示すように、床側間隙に耐火帯１０を設置し、壁側間隙に両端を固定した耐火帯１２を設置し、床側の耐火帯１０の長手方向の一端を、耐火パテ１３などで壁側の耐火帯１２に固定することがある。このような場合、掛止部１１が長手方向にスライドしやすいように、床側の耐火帯１０の掛止部１１側は耐火パテ１３で固定しないため、躯体が長手方向にずれる変動をした場合、この固定しない箇所が捲くれ、空隙ができ、防火及び遮炎機能を果たさなくなるおそれがあった。 In addition, when the refractory belt 10 described in the above-mentioned Patent Document 2 is mounted in a gap continuous with the floor surface and the wall surface, as shown in FIG. A fixed fireproof zone 12 may be installed, and one end in the longitudinal direction of the floor side fireproof zone 10 may be fixed to the wall side fireproof zone 12 with a fireproof putty 13 or the like. In such a case, since the hooking part 11 side of the floor side fireproof belt 10 is not fixed by the fireproof putty 13 so that the hooking part 11 can be easily slid in the longitudinal direction, the case where the casing is shifted in the longitudinal direction is changed. This non-fixed portion is blistered and a void is formed, which may prevent fire prevention and flame shielding functions.

そこで、本発明の目的は、床面及び壁面に連なる間隙に装着する耐火帯において、空隙が発生しにくい耐火帯を提供するものである。 Accordingly, an object of the present invention is to provide a refractory zone in which a void is unlikely to be generated in a refractory zone attached to a gap connected to a floor surface and a wall surface.

本発明の耐火帯は、壁面及び床面に連なる間隙内に装着した耐火帯であって、壁側間隙内に装着した壁側耐火帯と床側間隙内に装着した床側耐火帯とは一体的に形成してあり、床側耐火帯は、幅方向中央付近を重ね合わせて長手方向にスライド可能なスライド部材で連結した左右の耐火帯からなる構成を有することを特徴とする。 The refractory belt of the present invention is a refractory belt mounted in a gap connected to the wall surface and the floor surface, and the wall-side refractory belt mounted in the wall-side gap and the floor-side refractory belt mounted in the floor-side gap are integrated. The floor side fireproof belt is characterized by having a structure composed of left and right fireproof belts connected by a slide member that is slidable in the longitudinal direction with overlapping the vicinity of the center in the width direction.

このように、床側耐火帯を左右に二分割し、幅方向中央付近を重ね合わせて長手方向にスライド可能なスライド部材で連結することにより、重ね合わせた箇所はスライド部材で連結してあるので捲れ上がることがない。さらに、スライド部材が重しになり床側耐火帯に張力が働くため、床側耐火帯が間隙内でＵ乃至Ｖ字状を維持して耐火帯が捲れにくくなり、大きな変動に対しても空隙ができるのを防止することができる。 In this way, the floor side refractory zone is divided into right and left parts, and the overlapped portions are connected by the slide member by overlapping the vicinity of the center in the width direction and connecting by the slide member that can slide in the longitudinal direction. I don't get drowned. Furthermore, since the slide member becomes heavy and tension acts on the floor side fireproof zone, the floor side fireproof zone maintains a U or V shape in the gap, making it difficult for the fireproof zone to be drowned. Can be prevented.

以下、本発明の耐火帯の好適な一実施形態を説明する。 Hereinafter, a preferred embodiment of the refractory zone of the present invention will be described.

本発明の一実施形態の耐火帯１は、図１又は２に示すように、床側の間隙２に設けた床側耐火帯３と、壁側の間隙４に設けた壁側耐火帯５とを備えたものである。 As shown in FIG. 1 or 2, a fire-resistant zone 1 according to an embodiment of the present invention includes a floor-side fire-resistant zone 3 provided in a floor-side gap 2, and a wall-side fire-resistant zone 5 provided in a wall-side gap 4. It is equipped with.

床側耐火帯３は、幅方向中間付近を所定量重ね合わせ、スライド部材６で連結した左右の耐火帯３ａ，３ｂからなり、間隙２内にＵ乃至Ｖ字状に弛ませて設けてある。
左側の耐火帯３ａは、一端側を略Ｌ型の固定部材７ａを介して間隙２の一方の間隙面２ａに固定してあり、他端側の表面側に、端部から適宜間隔をおいて長手方向に伸びるスライド凹部６ａが設けてある。
右側の耐火帯３ｂは、一端側を略Ｌ型の固定部材７ｂを介して間隙２の他方の間隙面２ｂに固定してあり、他端側の裏面側に、端部から適宜間隔をおいて長手方向に伸びるスライド凸部６ｂが設けてある。 The floor-side refractory zone 3 is composed of left and right refractory zones 3 a and 3 b that are overlapped by a predetermined amount in the middle in the width direction and connected by a slide member 6.
The left refractory zone 3a has one end fixed to one gap surface 2a of the gap 2 via a substantially L-shaped fixing member 7a, and is appropriately spaced from the end on the other surface side. A slide recess 6a extending in the longitudinal direction is provided.
The right refractory belt 3b has one end fixed to the other gap surface 2b of the gap 2 via a substantially L-shaped fixing member 7b, and is appropriately spaced from the end on the back side of the other end. A slide protrusion 6b extending in the longitudinal direction is provided.

スライド部材６は、図３に示すように、スライド凹部６ａとスライド凸部６ｂとからなり、スライド凹部６ａは、長手方向の伸びるリップ溝型の嵌合凹部６ｃを２つ並行に配し、ねじなどの締結部材８ａで耐火帯３ａに固定してある。スライド凸部６ｂは、並行して長手方向に伸び、先端が外向きに張出した突条部６ｄを有する嵌合凸部６ｅを２つ並行に配し、ねじなどの締結部材８ｂで耐火帯３ｂに固定してあり、嵌合凸部６ｅは、嵌合凹部６ｃに嵌合して長手方向にスライド可能としてある。なお、スライド部材６は、壁側耐火帯５側の端部から所定の間隔（図１のＸ）をおいて配し、左右の耐火帯３ａ，３ｂがずれながら長手方向にスライドできるようにしてある。 As shown in FIG. 3, the slide member 6 includes a slide concave portion 6a and a slide convex portion 6b. The slide concave portion 6a includes two lip groove-type fitting concave portions 6c extending in the longitudinal direction in parallel. It is fixed to the refractory zone 3a with a fastening member 8a. The slide convex portion 6b is provided with two fitting convex portions 6e each having a protruding portion 6d extending in the longitudinal direction in parallel and extending outwardly at the tip, and the fireproof belt 3b by a fastening member 8b such as a screw. The fitting convex portion 6e is fitted in the fitting concave portion 6c and is slidable in the longitudinal direction. The slide member 6 is arranged at a predetermined interval (X in FIG. 1) from the end on the wall side fireproof zone 5 side so that the left and right fireproof zones 3a and 3b can slide in the longitudinal direction while being displaced. is there.

壁側耐火帯５は、一枚の耐火帯からなり、間隙４内にＵ字状に弛ませて設けてあり、一端側を略Ｌ型の固定部材７ｃを介して間隙４の一方の間隙面４ａに固定してあり、他端側を略Ｌ型の固定部材７ｄを介して間隙４の他方の間隙面４ｂに固定してあり、壁側耐火帯５の表面側に、床側耐火帯３の一端側を耐火パテ９などにより固定し、床側耐火帯３と一体的に形成してある。 The wall-side refractory zone 5 is formed of a single refractory zone, and is provided in a slacked U shape in the gap 4. One end face of the gap 4 is disposed on one end side through a substantially L-shaped fixing member 7 c. 4 a, the other end is fixed to the other gap surface 4 b of the gap 4 via a substantially L-shaped fixing member 7 d, and the floor side refractory zone 3 is placed on the surface side of the wall side refractory zone 5. Is fixed integrally with a fire-resistant putty 9 or the like, and is formed integrally with the floor-side fire-resistant zone 3.

以下、本発明の耐火帯１の作動を説明する。
躯体が間隙２及び間隙４の幅方向に狭まる変動した場合は、床側耐火帯３及び壁側耐火帯５は、奥方にさらに大きく弛み込むことにより変動を吸収し、広がる変動した場合は、床側耐火帯３及び壁側耐火帯５は、伸張することにより変動を吸収することができる。なお、この際、床側耐火帯３は、スライド部材６が重しとなりＵ字状乃至Ｖ字状を維持するように張力が働いているため、変動により捲れにくくなり、空隙ができにくいものである。 Hereinafter, the operation of the refractory zone 1 of the present invention will be described.
When the frame is changed to narrow in the width direction of the gap 2 and the gap 4, the floor side fireproof zone 3 and the wall side fireproof zone 5 absorb the change by further sagging deeper in the back, and when the change spreads, The side fireproof zone 3 and the wall side fireproof zone 5 can absorb fluctuations by stretching. At this time, the floor side refractory zone 3 has a sliding member 6 that is overlapped and tension is applied so as to maintain a U-shape or V-shape. is there.

躯体が間隙２の長手方向にずれる変動をした場合は、床側耐火帯３は、スライド部材６により左右の耐火帯３ａ，３ｂが長手方向にずれる動きをして変動を吸収し、壁側耐火帯５は、弛みにより両端部がずれる動きをして変動を吸収することができる。なお、この際も、床側耐火帯３は、スライド部材６が重しとなりＵ字状乃至Ｖ字状を維持するように張力が働いているため、変動により捲れにくくなり、空隙ができにくいものである。 When the frame has changed in the longitudinal direction of the gap 2, the floor side fireproof zone 3 is moved by the slide member 6 so that the left and right fireproof zones 3 a and 3 b move in the longitudinal direction to absorb the change, and the wall side fireproof zone 3 The band 5 can absorb fluctuations by moving its both end portions due to slack. In this case as well, the floor side refractory zone 3 is difficult to drown due to fluctuations because the slide member 6 is overlapped and tension is applied so as to maintain the U-shape or V-shape, and it is difficult to form a gap. It is.

このように本発明の耐火帯は、躯体の変動を吸収できるとともに、捲れにくくいため空隙ができにくく、耐火機能を確実に果たすことができるものである。 Thus, the refractory zone of the present invention can absorb fluctuations of the casing and is difficult to squeeze, so that it is difficult to form voids and can reliably perform the refractory function.

なお、図１〜３は、本発明の耐火帯を説明しやすくするために、間隙２及び間隙４を被覆するエキスパンションジョイントカバーを省略して記載してある。 1 to 3 omit the expansion joint cover that covers the gap 2 and the gap 4 in order to facilitate the explanation of the refractory zone of the present invention.

本発明の一実施形態の耐火帯を間隙に装着した状態を示した図である。It is the figure which showed the state which mounted | wore the gap with the refractory belt of one Embodiment of this invention. 図１の床側耐火帯の横断面図である。It is a cross-sectional view of the floor side refractory zone of FIG. 図１の床側耐火帯の構成部品であるスライド部材を示した側面図であり、（Ａ）はスライド凸部、（Ｂ）はスライド凹部を示した図である。It is the side view which showed the slide member which is a component of the floor side fireproof zone of FIG. 1, (A) is a slide convex part, (B) is the figure which showed the slide concave part. 従来の耐火帯の一例を示した横断面図である。It is the cross-sectional view which showed an example of the conventional fireproof zone. 従来の壁側耐火帯と床側耐火帯との連結部分を示した斜視図である。It is the perspective view which showed the connection part of the conventional wall side fireproof zone and a floor side fireproof zone.

Explanation of symbols

１耐火帯２間隙３床側耐火帯４間隙５壁側耐火帯６スライド部材 1 fireproof zone 2 gap 3 floor side fireproof zone 4 gap 5 wall side fireproof zone 6 slide member

Claims

It is a fireproof zone installed in the gap that is connected to the wall surface and the floor surface, the wall side fire zone installed in the wall side gap and the floor side fire zone installed in the floor side gap are formed integrally, The floor side fire-resistant zone is a fire-resistant zone composed of left and right fire-resistant zones that are connected by a slide member that is slidable in the longitudinal direction by overlapping the vicinity of the center in the width direction.