JP4948992B2 - Staircase - Google Patents

Staircase Download PDF

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JP4948992B2
JP4948992B2 JP2006324450A JP2006324450A JP4948992B2 JP 4948992 B2 JP4948992 B2 JP 4948992B2 JP 2006324450 A JP2006324450 A JP 2006324450A JP 2006324450 A JP2006324450 A JP 2006324450A JP 4948992 B2 JP4948992 B2 JP 4948992B2
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horizontal frame
frame
staircase
notch
connecting member
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JP2008138413A (en
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勝広 栗本
英昭 松本
健 上田
耐 西本
克彦 相楽
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Sekisui Chemical Co Ltd
Lixil Corp
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Sekisui Chemical Co Ltd
Lixil Corp
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Description

本発明は建物の下階と上階との間に設置された階段に関する。   The present invention relates to a staircase installed between a lower floor and an upper floor of a building.

一般に、建物内部の一階と二階との間に踊り場を有する階段を設置する場合、複数の踏板が取り付けられた上側と下側の階段フレームと、踊り場とはそれぞれ別体である(特許文献1参照)から、踊り場を固定し、さらに踊り場に下側階段の上端と上側階段の下端を固定し、踊り場を適宜手段によって固定することが行なわれている。   In general, when installing a staircase having a landing between the first floor and the second floor inside a building, the upper and lower stair frames to which a plurality of treads are attached and the landing are separate bodies (Patent Document 1). (See reference), the landing is fixed, the upper end of the lower stairs and the lower end of the upper stairs are fixed to the landing, and the landing is fixed by appropriate means.

ところが、踊り場をどのように固定するかについては、踊り場を下階に設けた支柱の上に支持させる方式や、踊り場を支柱ではなく、下階に固定した左右両側板の上に支持させる方式などが知られている。ところが、踊り場が普通の子供の背丈を越えるような高さになった場合、支柱は踊り場の下方空間を制限し、物を置くときの障害になったり、人の動線の邪魔になったりするという問題がある。   However, with regard to how to fix the landing, there is a method of supporting the landing on a support provided on the lower floor, a method of supporting the landing on the left and right side plates fixed on the lower floor, not a support, etc. It has been known. However, when the landing reaches a height that exceeds the height of a normal child, the support post restricts the space below the landing, which can be an obstacle when placing objects or obstruct people's traffic lines. There is a problem.

そこで、踊り場を建物躯体と上下部の階段フレームとによって支持することが考えられる。上下部の階段フレームの各下端部と上端部とから水平のフレームを延設し、このフレームを直接に建物の躯体に固定すれば、水平フレーム上に踊り場を構成することができる。水平フレームを建物の躯体に固定する場合、躯体側には水平フレームを受ける受け部材が必要となる。すなわち、躯体側から突設された受け部材に水平フレームを構成を採用すればよい。具体的には、締結時には受け部材が外部に露出しないように、水平フレームの中空部の内部に建物の躯体から室内側に突設された受金具を挿入し、水平フレームと受け部材とをボルトで締結すればよい。これにより、踊り場を躯体と階段フレームとによって支持することができるので、踊り場の下方の空間を広くとることができる。
実用新案登録第3115604号公報 特開2005−240321号公報
Therefore, it is conceivable to support the landing with the building frame and the upper and lower staircase frames. If a horizontal frame is extended from the lower end and upper end of the upper and lower staircase frames and this frame is directly fixed to the building frame, a landing can be constructed on the horizontal frame. When the horizontal frame is fixed to the building frame, a receiving member for receiving the horizontal frame is required on the frame side. In other words, the horizontal frame may be adopted for the receiving member protruding from the housing side. Specifically, in order to prevent the receiving member from being exposed to the outside at the time of fastening, a receiving metal fitting protruding inward from the housing of the building is inserted into the hollow portion of the horizontal frame, and the horizontal frame and the receiving member are bolted. You can conclude with. Thereby, since a landing can be supported by a housing and a staircase frame, the space below a landing can be taken widely.
Utility Model Registration No. 3115604 Japanese Patent Laid-Open No. 2005-240321

しかしながら、上述の階段構造によれば、施工にあたっては、階段フレームをクレーン等により水平フレームの先端を躯体の受け部材の位置まで吊り上げ、さらに水平方向に移動させて水平フレームの先端を受け部材に挿入するという作業を要することになる。このような作業は非常に困難であり、現実的ではない。挿上には床材等を張るので問題はないが、踊り場の下には階段フレームとその水平部分だけでなく、水平住むの端部と受け金具のボルト部分も露出する。特にボルトの締結部分は屋内から直接に見えるので見栄えがよくない。   However, according to the above-described staircase structure, when constructing, the staircase frame is lifted up to the position of the receiving member of the frame by a crane or the like, and further moved horizontally to be inserted into the receiving member of the horizontal frame. It will take work to do. Such work is very difficult and impractical. There is no problem because the flooring etc. is stretched on the insertion, but not only the staircase frame and its horizontal part but also the end part of the horizontal dwelling and the bolt part of the receiving bracket are exposed under the landing. In particular, the fastening part of the bolt is visible from the inside, so it does not look good.

本発明は上記問題点を解消し、階段フレームの取付け作業が容易であるとともに、ボルトなどの締結部分が踊り場の下方に露出せず、見栄えもよい階段を提供することをその課題とする。   An object of the present invention is to solve the above-described problems, and to provide a staircase that is easy to mount a staircase frame and that has a good appearance without a fastening portion such as a bolt being exposed below a landing.

前記課題を解決するため、請求項1に係る発明は、建物の下階と上階との間に設置された階段において、複数の踏板が取り付けられた階段フレームと、その上側又は下側から延長された水平フレームで構成される踊り場とを備え、上記水平フレームの先端部上面には切欠き部を形成し、上記建物の躯体から室内側に突設された受金具を、上記切欠き部を通じて上記水平フレームの断面内に案内し、上記受金具と水平フレームとを上記水平フレームの断面内で連結材によって連結したことを特徴とする。 In order to solve the above-mentioned problem, the invention according to claim 1 is a staircase installed between a lower floor and an upper floor of a building, and a staircase frame to which a plurality of treads are attached, and extends from the upper side or the lower side. And a landing plate composed of a horizontal frame, a notch is formed on the upper surface of the front end of the horizontal frame, and a metal fitting projecting from the housing of the building to the indoor side is passed through the notch. It guides in the cross section of the said horizontal frame, The said metal fitting and the horizontal frame were connected with the connection material in the cross section of the said horizontal frame .

請求項2に係る発明は、請求項1において、上記連結材を上記受金具の上に重合し、該連結材を上記水平フレームと上記受金具に締結したことを特徴とする。   The invention according to claim 2 is characterized in that, in claim 1, the connecting material is superposed on the receiving bracket, and the connecting material is fastened to the horizontal frame and the receiving bracket.

請求項3に係る発明は、請求項1又はにおいて、上記連結材は予め上記水平フレームの断面内で、上記切欠き部から露出する位置に設けられたことを特徴とする。   The invention according to claim 3 is characterized in that, in claim 1 or 2, the connecting member is provided in advance in a cross section of the horizontal frame at a position exposed from the notch.

請求項4に係る発明は、請求項1又は2において、上記連結材は予め上記水平フレームの断面内で、上記切欠き部から露出する位置にスライド可能に設けられたことを特徴とする。   According to a fourth aspect of the present invention, in the first or second aspect, the connecting member is slidably provided in advance in a cross section of the horizontal frame at a position exposed from the notch.

請求項1に係る発明によれば、階段フレームを吊り上げ、水平フレームの先端を躯体に設けた受金具の下に移動させ、さらに上に移動させることにより、水平フレームの先端上部の切欠き部を通じて上記水平フレームの断面内に案内することができるので、水平フレームの取付作業を容易かつ確実に行なうことができる。また、受金具と水平フレームとを連結材によって連結したので、連結材が水平フレームを補強する機能を有することになり、受金具と水平フレームとを強固に連結することができる。   According to the first aspect of the present invention, the staircase frame is lifted, the front end of the horizontal frame is moved under the metal fitting provided on the housing, and further moved upward, thereby passing through the notch at the upper end of the front end of the horizontal frame. Since the guide can be guided in the cross section of the horizontal frame, the horizontal frame can be easily and reliably attached. In addition, since the metal fitting and the horizontal frame are connected by the connecting material, the connecting material has a function of reinforcing the horizontal frame, and the metal fitting and the horizontal frame can be firmly connected.

また、受け金具は水平フレームの断面内に案内され、連結部材はその上部に重合しているので、連結部分も切欠きも踊り場の下から見ることはできない。したがって見栄えがよく、また下側に切欠き部を隠すための化粧材を設ける必要もない。   Further, since the receiving metal is guided in the cross section of the horizontal frame and the connecting member is superposed on the upper part thereof, neither the connecting part nor the notch can be seen from under the landing. Therefore, it looks good and there is no need to provide a decorative material for hiding the notch on the lower side.

請求項2に係る発明によれば、上記連結材を上記受金具の上に重合し、該連結材を上記水平フレームと上記受金具に締結する構成であるから、水平フレームの上面の切欠き部を利用してその上から締結作業をすることができ、水平フレームの取付作業を容易に行なうことができる。   According to the second aspect of the invention, since the connecting material is superposed on the receiving bracket and the connecting material is fastened to the horizontal frame and the receiving bracket, the cutout portion on the upper surface of the horizontal frame is provided. It is possible to perform a fastening operation from above by using and to easily perform the mounting operation of the horizontal frame.

請求項3に係る発明によれば、連結材は予め上記水平フレームの断面内で、上記切欠き部から露出する位置に設けられているので、上記受金具の上に連結材を重合した後、水平フレームの上面の切欠き部を利用してすぐに連結作業をすることができる。   According to the invention of claim 3, since the connecting material is provided in advance in the cross section of the horizontal frame, at a position exposed from the notch, after superposing the connecting material on the metal fitting, The connecting work can be immediately performed using the notch on the upper surface of the horizontal frame.

請求項4に係る発明によれば、連結材は予め上記水平フレームの断面内で、上記切欠き部から露出する位置にスライド可能に設けられているから、階段フレームを移動操作する場合には連結材を切欠き部から退避させておくことにより、上記切欠き部をフルに利用して受金具を水平フレームの断面内に案内することができる。案内後は、連結材をスライドして上記切欠き部から露出させ、切欠き部を利用してすぐに連結作業をすることができる。   According to the invention of claim 4, since the connecting member is slidably provided in advance in the cross section of the horizontal frame at a position exposed from the notch, the connecting member is connected when moving the staircase frame. By retracting the material from the cutout portion, the metal fitting can be guided into the cross section of the horizontal frame by making full use of the cutout portion. After the guidance, the connecting member can be slid to be exposed from the notch, and can be immediately connected using the notch.

図1は本発明を建物の内部に設置された折り返し階段において実施した場合の形態を示す側面図であり、図2はその平面図である。この折り返し階段は、建物の下階1と上階2との間に金属製の下側の階段フレーム3と上側の階段フレーム4とを折り返しにして連続させて設置したもので、上下の階段フレーム4、3には間隔をおいて踏板受け5を介して踏板6が取り付けられている。なお、7は壁躯体を示す。   FIG. 1 is a side view showing a form in which the present invention is implemented in a folded staircase installed inside a building, and FIG. 2 is a plan view thereof. This folded staircase is a metal lower staircase frame 3 and upper staircase frame 4 that are placed between the lower floor 1 and the upper floor 2 of the building in a continuous manner. 4 and 3 are attached with treads 6 through tread board receivers 5 at intervals. Reference numeral 7 denotes a wall frame.

上記下側の階段フレーム3と上側の階段フレーム4とは踊り場10を介して接続されている。踊り場10は次に示すように構成されている。   The lower staircase frame 3 and the upper staircase frame 4 are connected via a landing 10. The landing 10 is configured as follows.

まず、図3に示すように、下側の階段フレーム3の上端には水平フレーム3aが一体に延長形成されている。そして、水平フレーム3aの先端上面には切欠き部11が形成されている。   First, as shown in FIG. 3, a horizontal frame 3 a is integrally formed at the upper end of the lower staircase frame 3. And the notch part 11 is formed in the front-end | tip upper surface of the horizontal frame 3a.

また、図4に示すように、水平フレーム3aは中空で、上部両側にはそれぞれ断面逆L字形の縁12が形成され、また上面部には少し片寄り位置に凹溝13が長手方向に沿って形成されている。凹溝13の先端側の溝底には受け板14が配置されている。   Further, as shown in FIG. 4, the horizontal frame 3a is hollow, and edges 12 having an inverted L-shaped cross section are formed on both sides of the upper part, and a concave groove 13 is provided along the longitudinal direction at a slightly offset position on the upper surface part. Is formed. A receiving plate 14 is disposed on the groove bottom on the tip side of the recessed groove 13.

さらに、水平フレーム3aの先端部には連結材15が配置されている。連結材15は図5に示すように逆L字形の板材15aの上に厚板15bを溶接固定してなる部材で、図4のように上記受け板14から上記凹溝13を貫通した固定ネジ(図7(b)参照)によって受け板14ととともに水平フレーム3aに締結固定されている。連結材15の先端にはボルト挿通孔16が形成されている。   Further, a connecting member 15 is disposed at the tip of the horizontal frame 3a. The connecting member 15 is a member formed by welding and fixing a thick plate 15b on an inverted L-shaped plate member 15a as shown in FIG. 5, and a fixing screw penetrating the concave groove 13 from the receiving plate 14 as shown in FIG. (See FIG. 7B) and fastened to the horizontal frame 3a together with the receiving plate 14. A bolt insertion hole 16 is formed at the tip of the connecting member 15.

これに対し、壁躯体には踊り場10に対応する位置に受金具17(図6参照)が突設されている。これらの受金具17は下向きに開口する断面コ字形の部材で、壁躯体7を構成する構造材(図示せず)などに一体に固定されている。   On the other hand, a receiving bracket 17 (see FIG. 6) is projected from the wall frame at a position corresponding to the landing 10. These brackets 17 are U-shaped members that open downward, and are integrally fixed to a structural material (not shown) constituting the wall housing 7.

上記階段フレーム3の水平フレーム3aを壁躯体の受金具17に固定するときは、まず図6に示すように、階段フレーム3をロープ20で吊り、水平フレーム3aの先端を受金具17に接近させ、図7(a)(b)のように、水平フレーム3aを受金具17の下の方から上側にすくうように移動させて切欠き部11から水平フレーム3aの断面内に案内する。そして、受金具17の上に上記連結材15を係合させてボルト21を連結材15のボルト挿通孔16から受金具17のボルト孔18に螺着して締結固定すればよい。これにより、連結材15を介して受金具17と水平フレーム3aとが連結される。   When the horizontal frame 3a of the staircase frame 3 is fixed to the wall housing bracket 17, first, as shown in FIG. 6, the staircase frame 3 is suspended by the rope 20, and the tip of the horizontal frame 3a is brought close to the bracket 17. 7 (a) and 7 (b), the horizontal frame 3a is moved so as to scoop upward from the lower side of the receiving bracket 17 and guided from the notch 11 into the cross section of the horizontal frame 3a. Then, the connecting member 15 may be engaged with the receiving member 17 and the bolt 21 may be screwed from the bolt insertion hole 16 of the connecting member 15 to the bolt hole 18 of the receiving member 17 to be fastened and fixed. As a result, the bracket 17 and the horizontal frame 3 a are connected via the connecting member 15.

次に、上側の階段フレーム4の下部にも図3に示すように上記踊り場10を構成するための水平フレーム4aが延長して設けられている。この水平フレーム4aの断面形状も、図4に示す上記下側階段フレーム3の水平フレーム3aと同じで、水平フレーム4aの先端上面には切欠き部11が形成されている。また、水平フレーム4aの上部両側にはそれぞれ断面逆L字形の縁12が形成され、また上面部には少し片寄り位置に凹溝13が長手方向に沿って形成されている。なお、凹溝13の先端側の溝底13aにはスライド孔22(図9参照)が形成されているとともに、受け板14が配置されている。   Next, as shown in FIG. 3, a horizontal frame 4 a for constituting the landing 10 is extended and provided at the lower portion of the upper staircase frame 4. The cross-sectional shape of the horizontal frame 4a is the same as the horizontal frame 3a of the lower step frame 3 shown in FIG. 4, and a notch 11 is formed on the top surface of the front end of the horizontal frame 4a. In addition, an edge 12 having an inverted L-shaped cross section is formed on both sides of the upper portion of the horizontal frame 4a, and a concave groove 13 is formed along the longitudinal direction at a slightly offset position on the upper surface portion. A slide hole 22 (see FIG. 9) is formed in the groove bottom 13a on the distal end side of the concave groove 13, and a receiving plate 14 is disposed.

水平フレーム4aの先端部には、図8(a)、図9及び図10(a)に示されるように、上述のものと同じ構成の連結材15が上記スライド孔22の範囲内で水平フレーム4aの長手方向に沿ってスライド自在に取り付けられている。また、図9に示されるように、この連結材15は上記受け板14から上記スライド孔22を貫通したネジ23によって受け板14の先端から後退する位置で受け板14に仮止め固定されている。この状態で、受け板14には固定ネジ挿通孔25が、連結材15にはネジ孔26が互いに整合するように配置されている。凹溝13の溝底13aにも、上記受け板14と連結材15とが所定量スライドしたときのネジ挿通孔25とネジ孔26に整合する位置にネジ挿通孔27が形成されている。なお、このとき受け板14の先端は連結材15の先端よりも後退した位置に保持されている。また、連結材15の先端近傍にはスライド操作用のネジ28が取り付けられている。   As shown in FIG. 8A, FIG. 9 and FIG. 10A, a connecting member 15 having the same configuration as described above is disposed at the tip of the horizontal frame 4a within the range of the slide hole 22. It is slidably attached along the longitudinal direction of 4a. Further, as shown in FIG. 9, the connecting member 15 is temporarily fixed to the receiving plate 14 at a position where the connecting member 15 is retracted from the front end of the receiving plate 14 by a screw 23 that passes through the slide hole 22 from the receiving plate 14. . In this state, a fixing screw insertion hole 25 is arranged in the receiving plate 14 and a screw hole 26 is arranged in the connecting member 15 so as to be aligned with each other. A screw insertion hole 27 is also formed in the groove bottom 13a of the concave groove 13 at a position that aligns with the screw insertion hole 25 and the screw hole 26 when the receiving plate 14 and the connecting member 15 slide by a predetermined amount. At this time, the tip of the receiving plate 14 is held at a position retracted from the tip of the connecting member 15. In addition, a slide operation screw 28 is attached in the vicinity of the tip of the connecting member 15.

これに対し、壁躯体の踊り場10に対応する位置には、上述と同様の受金具17が突設されている。   On the other hand, a receiving bracket 17 similar to that described above protrudes at a position corresponding to the wall landing 10.

上記上側の階段フレーム4の水平フレーム3a4aを壁躯体の受金具17に固定するときは、まず水平フレーム4aの受け板14に連結材15を仮止めするネジ23を緩めておき、図9(a)(b)のように階段フレーム4をロープ20で吊り、水平フレーム4aの先端を受金具17に接近させ、図10(a)(b)に示されるように、水平フレーム4aを受金具17の下の方から上側に移動させて切欠き部11から水平フレーム4aの断面内に案内する。そこで、上記連結材15の操作用ネジ28(図8(b)参照)に指を掛けて引き出し、図8(b)及び図10(c)に示すように、切欠き部11から露出する所定位置までスライドさせて上記受金具17の上に重合させる。このとき、受け板14も同時に同じ量だけスライド移動する。そして、上記操作用ネジ28を外し、図12(a)(b)に示されるように、切欠き部11の上から連結材15と受金具17とをボルト21で締結するとともに、水平フレーム4aの受け板14と凹溝13の溝底に形成されたのネジ挿通孔25、27(図9参照)から挿通した固定ネジ30を連結材15のネジ孔26に締結して固定すればよい。これにより、連結材15を介して受金具17と水平フレーム4aとが連結される。   When the horizontal frame 3a4a of the upper staircase frame 4 is fixed to the wall bracket receiving bracket 17, first, the screw 23 for temporarily fixing the connecting member 15 to the receiving plate 14 of the horizontal frame 4a is loosened, and FIG. As shown in FIGS. 10 (a) and 10 (b), the stair frame 4 is hung by the rope 20 as shown in FIG. It is moved from the lower side to the upper side and guided from the notch 11 into the cross section of the horizontal frame 4a. Therefore, the operation screw 28 (see FIG. 8B) of the connecting member 15 is pulled out with a finger, and is exposed from the notch 11 as shown in FIGS. 8B and 10C. It is slid to a position and superposed on the receiving bracket 17. At this time, the receiving plate 14 also slides by the same amount at the same time. Then, the operation screw 28 is removed, and as shown in FIGS. 12 (a) and 12 (b), the connecting member 15 and the receiving bracket 17 are fastened with bolts 21 from above the notch 11, and the horizontal frame 4a. The fixing screw 30 inserted through the screw insertion holes 25 and 27 (see FIG. 9) formed in the groove bottom of the receiving plate 14 and the concave groove 13 may be fastened and fixed to the screw hole 26 of the connecting member 15. As a result, the bracket 17 and the horizontal frame 4 a are connected via the connecting member 15.

なお、上記下側の階段フレーム3と上側の階段フレーム4の水平フレーム3a、4aにより踊り場10用のフレームが形成されるから、その上に床パネルを張り、さらにその上からフローリング施工等を行なえばよい。さらに、階段フレームに続く手摺用支柱を立設し、その上に手摺を支持させ、さらに手摺の下方にはパネルを配設すればよい。   Since the frame for the landing 10 is formed by the horizontal frames 3a and 4a of the lower stair frame 3 and the upper stair frame 4, the floor panel can be stretched thereon and flooring can be performed from there. That's fine. Further, a handrail post following the staircase frame is erected, the handrail is supported thereon, and a panel is disposed below the handrail.

上記構成によれば、階段フレーム3、4を吊り上げ、水平フレーム3a、4aの先端を躯体に設けた受金具17の下に移動させ、さらに上に移動させることにより、水平フレーム3a、4aの先端上部の切欠き部11を通じて上記水平フレーム3a、4aの断面内に案内することができるので、水平フレーム3a、4aの取付作業を容易かつ確実に行なうことができる。また、受金具17と水平フレーム3a、4aとを連結材15によって連結したので、連結材15が水平フレーム3a、4aを補強する機能を有することになり、受金具17と水平フレーム3a、4aとを強固に連結することができる。   According to the above configuration, the stair frames 3 and 4 are lifted, and the front ends of the horizontal frames 3a and 4a are moved by moving the front ends of the horizontal frames 3a and 4a below the receiving bracket 17 provided on the housing. Since it can guide in the cross section of the said horizontal frames 3a and 4a through the notch part 11 of an upper part, the attachment operation | work of the horizontal frames 3a and 4a can be performed easily and reliably. Further, since the bracket 17 and the horizontal frames 3a and 4a are coupled by the coupling member 15, the coupling member 15 has a function of reinforcing the horizontal frames 3a and 4a. Can be firmly connected.

また、受金具17は水平フレーム3a、4aの断面内に案内され、連結材15はその上部に重合しているので、連結部分は踊り場10の下から見ることはできない。したがって見栄えがよい。   In addition, the receiving bracket 17 is guided in the cross section of the horizontal frames 3a and 4a, and the connecting member 15 is superposed on the upper portion thereof, so that the connecting portion cannot be seen from under the landing 10. Therefore, it looks good.

さらに、上記連結材15を上記受金具17の上に重合し、該連結材15を上記水平フレーム3a、4aと上記受金具17に締結する構成であるから、水平フレーム3a、4aの上面の切欠き部11を利用してその上から締結作業をすることができる。このため、水平フレーム3a、4aの取付作業を容易に行なうことができる。   Further, since the connecting member 15 is superposed on the receiving bracket 17 and the connecting member 15 is fastened to the horizontal frames 3a and 4a and the receiving bracket 17, the upper surfaces of the horizontal frames 3a and 4a are cut off. Fastening work can be performed from above using the notch 11. For this reason, the horizontal frame 3a, 4a can be easily attached.

加えて、下側の階段フレーム3の水平フレーム3aを取り付けるにあたり、連結材15は予め上記水平フレーム3aの断面内で、上記切欠き部11から露出する位置に設けられているので、上記受金具17の上に連結材15を重合した後、水平フレーム3aの上面の切欠き部11を利用してすぐに連結作業をすることができる。   In addition, when attaching the horizontal frame 3a of the lower staircase frame 3, the connecting member 15 is provided in advance in the cross section of the horizontal frame 3a at a position exposed from the notch 11, so After the connecting material 15 is superposed on 17, the connecting work can be immediately performed using the notch 11 on the upper surface of the horizontal frame 3 a.

また、上側の階段フレーム4の水平フレーム4aを取り付けるにあたり、連結材15は予め上記水平フレーム4aの断面内で、上記切欠き部11から露出する位置にスライド可能に設けられているから、階段フレームを移動操作する場合には連結材15を切欠き部11から退避させておくことにより、上記切欠き部11をフルに利用して受金具17を水平フレーム4aの断面内に案内することができる。案内後は、連結材15をスライドして上記切欠き部11から露出させ、切欠き部11を利用してすぐに連結作業をすることができる。   Further, when attaching the horizontal frame 4a of the upper staircase frame 4, the connecting member 15 is provided in advance in the cross section of the horizontal frame 4a so as to be slidable at a position exposed from the notch 11, so that the staircase frame When the moving member is moved, the connecting member 15 is retracted from the cutout portion 11, so that the cutout portion 11 can be fully utilized to guide the bracket 17 into the cross section of the horizontal frame 4a. . After the guidance, the connecting member 15 can be slid to be exposed from the notch 11, and the connecting work can be immediately performed using the notch 11.

なお、上述の実施形態では、躯体の受金具17に下側階段フレーム3の水平フレーム3aと上側階段フレーム4の水平フレーム4aを連結するにあたり、連結材15を一方の水平フレーム3aに対しては予め固定しておき、他方の水平フレーム4aにはスライド可能にした場合の取付態様につき示したが、これに限定されない。連結材を両方の水平フレームに対して予め固定しておいてもよく、あるいは両方の水平フレームに対して予めスライド可能としておいてもよい。   In the above-described embodiment, when connecting the horizontal frame 3a of the lower staircase frame 3 and the horizontal frame 4a of the upper staircase frame 4 to the housing bracket 17, the connecting member 15 is attached to one horizontal frame 3a. Although the attachment mode in the case where it is fixed in advance and slidable on the other horizontal frame 4a is shown, it is not limited to this. The connecting member may be fixed in advance with respect to both horizontal frames, or may be slidable in advance with respect to both horizontal frames.

また、受金具は躯体を構成するものであれば壁躯体に設ける形態に限定されない。柱に設ける構成であってもよい。   Moreover, if a metal fitting comprises a housing, it will not be limited to the form provided in a wall housing. The structure provided in a pillar may be sufficient.

本発明に係る延長床付き階段の側面図Side view of staircase with extension floor according to the present invention 上記階段の平面図Top view of the above stairs 階段フレームの斜視図Perspective view of staircase frame 水平フレームの断面図Cross section of horizontal frame 連結材の斜視図Perspective view of connecting material 下側階段の取付態様説明図Illustration of the installation of the lower stairs (a)(b)は下側階段の水平フレームの取付態様説明図(A) (b) is an explanatory view of the mounting mode of the horizontal frame of the lower stairs (a)(b)は上側階段の水平フレームと連結材の取付態様説明図(A) (b) is an explanatory view of the mounting manner of the horizontal frame and connecting material of the upper stairs. (a)(b)は上記上側の水平フレームの縦断面図(A) and (b) are longitudinal sectional views of the upper horizontal frame. (a)(b)(c)は上記水平フレームの取付態様説明図(A) (b) (c) is an explanatory view of the mounting mode of the horizontal frame. (a)(b)は上側階段フレームの取付態様説明図(A) (b) is an explanatory view of the mounting mode of the upper staircase frame. (a)(b)は上側階段の水平フレームの取付状態の側面図と断面図(A) (b) is a side view and a cross-sectional view of the mounting state of the horizontal frame of the upper stairs

1 下階
2 上階
3 下側の階段フレーム
4 上側の階段フレーム
3a 下側の水平フレーム
4a 上側の水平フレーム
10 踊り場
11 切欠き部
15 連結材
17 受金具材
DESCRIPTION OF SYMBOLS 1 Lower floor 2 Upper floor 3 Lower staircase frame 4 Upper staircase frame 3a Lower horizontal frame 4a Upper horizontal frame 10 Landing place 11 Notch 15 Connection material 17 Brace material

Claims (4)

建物の下階と上階との間に設置された階段において、複数の踏板が取り付けられた階段フレームと、その上側又は下側から延長された水平フレームで構成される踊り場とを備え、
上記水平フレームの先端部上面には切欠き部を形成し、上記建物の躯体から室内側に突設された受金具を、上記切欠き部を通じて上記水平フレームの断面内に案内し、上記受金具と水平フレームとを上記水平フレームの断面内で連結材によって連結したことを特徴とする階段。
In a staircase installed between the lower floor and upper floor of a building, it comprises a stair frame to which a plurality of treads are attached, and a landing composed of a horizontal frame extending from the upper side or the lower side thereof,
A notch is formed on the upper surface of the front end of the horizontal frame, and a receiving bracket projecting indoors from the housing of the building is guided into the cross section of the horizontal frame through the notch, and the receiving bracket is provided. And a horizontal frame connected by a connecting member within a cross section of the horizontal frame .
上記連結材を上記受金具の上に重合し、該連結材を上記水平フレームと上記受金具に締結したことを特徴とする、請求項1に記載の階段。   The staircase according to claim 1, wherein the connecting material is superposed on the receiving bracket, and the connecting material is fastened to the horizontal frame and the receiving bracket. 上記連結材は予め上記水平フレームの断面内で、上記切欠き部から露出する位置に設けられたことを特徴とする、請求項1又は2に記載の階段。   The staircase according to claim 1 or 2, wherein the connecting material is provided in advance in a cross section of the horizontal frame at a position exposed from the notch. 上記連結材は予め上記水平フレームの断面内で、上記切欠き部から露出する位置にスライド可能に設けられたことを特徴とする、請求項1又は2に記載の階段。   The staircase according to claim 1 or 2, wherein the connecting member is slidably provided in advance in a cross section of the horizontal frame at a position exposed from the notch.
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