JP3211466U - Assembly ladder - Google Patents

Assembly ladder Download PDF

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JP3211466U
JP3211466U JP2017001981U JP2017001981U JP3211466U JP 3211466 U JP3211466 U JP 3211466U JP 2017001981 U JP2017001981 U JP 2017001981U JP 2017001981 U JP2017001981 U JP 2017001981U JP 3211466 U JP3211466 U JP 3211466U
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ladder
plate
column
bar
connection
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三千男 伊藤
三千男 伊藤
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城東産業株式会社
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Abstract

【課題】梯子自体を組立式に構成でき、踏み桟、梯子支柱等が破損したときにはその交換が容易であり、複数連で接続する場合にも確実に接続固定できる組立梯子を提供する。【解決手段】左右に配した対状の梯子支柱2の相互間に、所定間隔毎に踏み桟5を着脱自在に横架固定して成る。踏み桟5は、断面で円形を呈する中空筒材製で、端部それぞれには、梯子支柱2の内側面に固着する矩形状の固着プレート7を固定し、この固着プレート7には、踏み桟5自体の空洞部に対応したプレート貫挿孔8を開口形成し、隅部にはプレート取付孔9を開穿する。梯子支柱2は、踏み桟5の横架固定位置に、踏み桟5の空洞部に連通する支柱貫挿孔3を開口形成し、プレート取付孔9に対応する支柱取付孔4を開穿する。プレート取付孔9、支柱取付孔4それぞれを対応合致させて梯子支柱2相互間に踏み桟5を着脱自在に固定する取付手段10を備える。【選択図】図1Provided is an assembly ladder in which the ladder itself can be constructed in an assembling manner, and can be easily replaced when a stepping bar, a ladder post, or the like is damaged, and can be securely connected and fixed even when a plurality of stations are connected. A tread bar 5 is detachably mounted horizontally at predetermined intervals between paired ladder posts 2 arranged on the left and right. The step bar 5 is made of a hollow cylindrical material having a circular cross section, and a rectangular fixing plate 7 fixed to the inner surface of the ladder support 2 is fixed to each end portion. A plate insertion hole 8 corresponding to the hollow portion of 5 itself is opened and a plate mounting hole 9 is opened in the corner. The ladder column 2 is formed with a column insertion hole 3 communicating with the cavity of the column 5 at the horizontal fixing position of the column 5, and the column mounting hole 4 corresponding to the plate mounting hole 9 is opened. The plate mounting hole 9 and the column mounting hole 4 are matched to each other, and mounting means 10 for detachably fixing the step bar 5 between the ladder columns 2 is provided. [Selection] Figure 1

Description

この考案は、例えば建築・作業現場において、比較的に高い場所で作業を行うときに使用される梯子に係り、特に組立あるいは分解が可能で、破損した踏み桟や梯子支柱の着脱交換が容易となるようにした組立梯子に関する。   This device relates to a ladder used when working in a relatively high place, for example, at a construction / working site, and can be assembled or disassembled in particular, and it is easy to attach and detach a damaged stepping rail or ladder column. It is related with the assembly ladder made to become.

従来から、比較的に高い場所での各種の作業に際し梯子によって高所にのぼり、作業を行っている。そのための梯子は、例えば両側に配した左右の支柱相互間に所定間隔毎に踏み桟を横架固定して成り、持ち運び、作業現場での移動その他を考慮して所定の荷重に耐え得るようにした例えばアルミニウム材、ステンレス材等を素材して軽量化が図られている。また、現場において簡単に使用できるように、更には必要な高さに設定できるように組立式とした梯子も提案されている。   Conventionally, a variety of work at relatively high places has been done by climbing up to high places with a ladder. For this purpose, the ladder is formed by, for example, horizontally fixing a step bar between right and left support columns arranged on both sides so that it can be carried and withstands a predetermined load in consideration of movement and other factors at the work site. For example, aluminum materials, stainless materials, etc. are used to reduce the weight. In addition, an assembling-type ladder has also been proposed so that it can be easily used on site and can be set to a required height.

例えば特許文献1に示される簡易梯子であり、特許文献2に示されるシステムステンレス製梯子である。特許文献1の簡易梯子は、中空状の梯子本体に、梯子本体の一側壁から他側壁に踏み桟を梯子本体の高さ方向に沿って左右交互に貫通保持して成る。特許文献2のシステムステンレス製梯子は、左右に配したサイドバー相互間に所定間隔毎にステップ部材をボルト・ナットによって固定することで横架固定して成る。   For example, it is a simple ladder shown in Patent Document 1 and a system stainless steel ladder shown in Patent Document 2. The simple ladder disclosed in Patent Document 1 is formed by alternately holding a step bar from one side wall of the ladder body to the other side wall in a hollow ladder main body and penetrating left and right along the height direction of the ladder main body. The system stainless steel ladder disclosed in Patent Document 2 is configured to be horizontally fixed by fixing step members with bolts and nuts at predetermined intervals between side bars arranged on the left and right.

特開平8−13966号公報JP-A-8-13966 特開2002−235490号公報JP 2002-235490 A

ところが特許文献1の簡易梯子によると、梯子本体が上り下り面の中央に配置されることになるから、建築物構築用の仮設足場での上り下りや梯子自体に止まっての作業では邪魔になり、迅速な各種作業は望めない。また特許文献2のシステムステンレス製梯子によると、そのステップ部材がコ字状平板によって形成されていると、耐荷重性は大きくはないから歪形したり、大きな荷重が付加されたときには破断されたりする危険性がある。   However, according to the simple ladder of Patent Document 1, the ladder main body is arranged at the center of the up / down surface, so that it becomes an obstacle in the work of climbing up and down in the temporary scaffold for building construction or stopping on the ladder itself. I can't expect a lot of quick work. Moreover, according to the system stainless steel ladder of Patent Document 2, if the step member is formed of a U-shaped flat plate, the load resistance is not large, so it is distorted or broken when a large load is applied. There is a risk of doing.

そこでこの考案は叙上のような従来存した諸事情に鑑み案出されたもので、その目的は梯子自体を組立式に構成でき、特にその踏み桟や梯子支柱等が破損したときにはその交換が容易であり、また複数連で接続する場合にも確実に連結固定できるようにもした組立梯子を提供することにある。   Therefore, this device was devised in view of various circumstances that existed in the past, and its purpose is to construct the ladder itself as an assembly type, especially when the step rails or ladder posts are damaged. It is an object of the present invention to provide an assembly ladder which is easy and can be securely coupled and fixed even when connected in a plurality of series.

上述した課題を解決するため、この考案にあっては、左右に配した対状の梯子支柱2の相互間に、所定間隔毎に踏み桟5が着脱自在に横架固定されて成る組立梯子において、踏み桟5は、断面で円形を呈する中空筒材製で、端部それぞれには、梯子支柱2の内側面に固着する矩形状の固着プレート7が固定されていて、この固着プレート7には、踏み桟5自体の空洞部に対応したプレート貫挿孔8が中心に開口形成され、固着プレート7自体の隅部にはプレート取付孔9が開穿されており、梯子支柱2は、踏み桟5の横架固定位置に、踏み桟5の空洞部に連通する支柱貫挿孔3が開口形成され、固着プレート7のプレート取付孔9に対応する支柱取付孔4が開穿されており、プレート取付孔9、支柱取付孔4それぞれを対応合致させて梯子支柱2相互間で、梯子支柱2と踏み桟5とが着脱自在に固定される取付手段10を備えて成ることを特徴とする。
梯子支柱2は、帯板状の主材と、この主材の両側縁に主材自体の片面にほぼ直交させることで張り出し状に一体に設けた張り出し材とから成る断面でほぼH字形を呈し、主材の片面が相対向するようにして左右に配されることで構成することができる。
また、組立梯子(1)を複数連で接続する接続手段20を備えており、この接続手段20は、相互に接続される梯子1相互の重ね合わせ部分で、接続されるそれぞれの梯子1における踏み桟5の空洞部、プレート貫挿孔8、支柱貫挿孔3に貫挿され、梯子支柱2の外側方に端部が突出する接続バー21と、接続されるそれぞれの梯子1の踏み桟5に貫挿されたそれぞれの接続バー21の端部を貫挿させる複数の接続孔23が開穿されていて、接続バー21相互間に架け渡されて連結させる接続プレート22と、この接続プレート22の外側方に突出された接続バー21の突出部に貫挿固定されるピン状のストッパー24とから成る。
In order to solve the above-described problems, in the present invention, in an assembly ladder in which a step bar 5 is detachably fixed horizontally at predetermined intervals between paired ladder posts 2 arranged on the left and right. The tread bar 5 is made of a hollow cylindrical material having a circular cross section, and a rectangular fixing plate 7 fixed to the inner surface of the ladder support 2 is fixed to each end portion. A plate insertion hole 8 corresponding to the hollow portion of the tread bar 5 itself is formed at the center, and a plate mounting hole 9 is opened at a corner of the fixing plate 7 itself. 5 is formed with a column insertion hole 3 communicating with the cavity of the tread bar 5, and a column mounting hole 4 corresponding to the plate mounting hole 9 of the fixing plate 7 is opened. Ladder support by matching each of the mounting hole 9 and the column mounting hole 4 Between 2 mutually, characterized in that it comprises an attachment means 10 and the crosspiece 5 depressing the ladder post 2 is detachably fixed.
The ladder support 2 has a substantially H-shaped cross section including a strip-shaped main material and a projecting material integrally provided in a projecting manner by being substantially orthogonal to one side of the main material itself on both side edges of the main material. The main material may be arranged on the left and right so that one side of the main material faces each other.
Further, a connecting means 20 for connecting a plurality of assembly ladders (1) in series is provided. The connecting means 20 is an overlapping portion of the ladders 1 connected to each other, and the step in each connected ladder 1 is provided. A connecting bar 21 that is inserted into the hollow portion of the crosspiece 5, the plate insertion hole 8, and the post insertion hole 3, and has an end projecting outward from the ladder post 2, and the stepping crosspiece 5 of each connected ladder 1. A plurality of connection holes 23 for penetrating the end portions of the respective connection bars 21 inserted through the connection bars 21 are opened, and the connection plates 22 are connected between the connection bars 21 and connected to each other. And a pin-like stopper 24 that is inserted into and fixed to the protruding portion of the connection bar 21 that protrudes outward.

以上のように構成されたこの考案に係る組立梯子にあって、左右の梯子支柱2相互間で着脱自在にした踏み桟5が横架固定されていることで、梯子支柱2、踏み桟5相互による組立、分解を可能にさせ、特に例えば破損した踏み桟5や梯子支柱2を交換させ得る。
踏み桟5は、断面で円形を呈する中空筒材製であることで、耐荷重性を増大させる。
また、接続手段20において、互いに合致する踏み桟5の空洞部、固着プレート7のプレート貫挿孔8、梯子支柱2の支柱貫挿孔3は、複数の梯子1を接続するときの接続バー21を貫挿させ、接続するそれぞれの梯子支柱2の踏み桟5に貫挿した接続バー21相互に掛け渡した接続プレート22、ストッパー24は、梯子1を複数連で接続させる。
In the assembly ladder according to the present invention configured as described above, the step post 5 that is detachable between the left and right ladder posts 2 is fixed horizontally so that the ladder post 2 and the step cross 5 are mutually connected. Can be assembled and disassembled, and in particular, for example, a damaged step bar 5 or ladder post 2 can be replaced.
The step bar 5 is made of a hollow cylinder having a circular cross section, thereby increasing load resistance.
Further, in the connection means 20, the hollow portion of the stepped bar 5 that matches each other, the plate insertion hole 8 of the fixing plate 7, and the column insertion hole 3 of the ladder column 2 are connected to the connection bar 21 when connecting the plurality of ladders 1. A connecting plate 22 and a stopper 24 that span each other between the connection bars 21 that are inserted into the step bars 5 of the ladder struts 2 to be connected are connected in a plurality of series.

この考案は以上説明したように構成されているため、左右に配した梯子支柱2相互間に踏み桟5を着脱自在に横架固定してあることで、梯子1自体を組立式に構成でき、また、踏み桟5や梯子支柱2が破損した場合にはその交換も容易である。中空状の踏み桟5と、この踏み桟5の横架固定位置の梯子支柱2に開口形成した支柱貫挿孔3とを利用して、梯子1自体の重ね合わせ部分同士を接続手段20によって順次に複数連にして接続でき、所定の高さ、長さの梯子1とすることができる。   Since the present invention is configured as described above, the ladder 1 itself can be constructed in an assembly-type by detachably mounting the step bar 5 between the ladder columns 2 arranged on the left and right. Further, when the step bar 5 or the ladder support 2 is damaged, it is easy to replace it. Using the hollow step bar 5 and the column insertion hole 3 formed in the ladder column 2 at the horizontal fixing position of the step beam 5, the overlapping portions of the ladder 1 itself are sequentially connected by the connecting means 20. A ladder 1 having a predetermined height and length can be obtained.

すなわち、これはこの考案において、左右に配した梯子支柱2の相互間に踏み桟5を着脱自在に横架固定して成り、踏み桟5は、中空筒材製で、端部に固着した固着プレート7には、踏み桟5自体の空洞部に対応したプレート貫挿孔8が開口形成され、隅部にプレート取付孔9が開穿されており、梯子支柱2は、踏み桟5の横架固定位置に、踏み桟5の空洞部に連通する支柱貫挿孔3が開口形成され、プレート取付孔9に対応する支柱取付孔4が開穿されており、梯子支柱2相互間で踏み桟5が着脱自在に固定される取付手段10を備えて成るからである。これによって、梯子支柱2と踏み桟5との取付手段10による組立・分解、踏み桟5、梯子支柱2等の交換、更には接続手段20による複数連の接続等を可能にする。   That is, in this device, the step bar 5 is detachably mounted horizontally between the ladder struts 2 arranged on the left and right sides, and the step bar 5 is made of a hollow cylindrical material and fixed to the end. The plate 7 is formed with a plate insertion hole 8 corresponding to the hollow portion of the step bar 5 itself, and a plate mounting hole 9 is opened in a corner portion. A column insertion hole 3 communicating with the hollow portion of the step bar 5 is formed at a fixed position, and a column attachment hole 4 corresponding to the plate attachment hole 9 is opened. This is because it is provided with attachment means 10 that is detachably fixed. As a result, assembly / disassembly of the ladder post 2 and the step post 5 by the attachment means 10, replacement of the step post 5, the ladder post 2, etc., and a plurality of connections by the connection means 20 are possible.

また、踏み桟5自体は、断面円形の中空筒材にて形成されているから、作業者の上り下り時における荷重その他を十分に支持できる耐荷重性があり、もし、仮に破損することがあっても踏み桟5が着脱自在であることで簡単に交換ができ、長期にわたる使用を可能にする。   Moreover, since the crosspiece 5 itself is formed of a hollow cylindrical material having a circular cross section, it has a load resistance capable of sufficiently supporting the load and the like when the worker ascends and descends, and may be temporarily damaged. Even if the treadle 5 is detachable, it can be easily replaced, allowing long-term use.

接続手段20において、重ね合わせた部分における踏み桟5、プレート貫挿孔8、支柱貫挿孔3を貫挿させた接続バー21それぞれに掛け渡した接続プレート22によって梯子1の重ね合わせ部分をしっかり接合でき、また、接続バー21はこの接続バー21の突出部に貫挿固定したストッパー23によって接続バー21から接続プレート22が外れることはなく、接続状態を維持でき、作業の安全性を確保できる。   In the connecting means 20, the overlapping portion of the ladder 1 is firmly secured by the connecting plate 22 that spans the step bar 5, the plate insertion hole 8, and the connection bar 21 through which the column insertion hole 3 is inserted. The connecting bar 21 can be maintained in the connected state without the connecting plate 22 being detached from the connecting bar 21 by the stopper 23 inserted and fixed to the projecting portion of the connecting bar 21, and the safety of the work can be secured. .

尚、上記の課題を解決するための手段、考案の効果の項それぞれにおいて付記した符号は、図面中に記載した構成各部を示す部分との参照を容易にするために付した。この考案は、これらの記載、図面中の符号等によって示された構造・形状等に限定されない。   In addition, the code | symbol attached | subjected in each of the means for solving said subject, and the item of the effect of an invention was attached | subjected in order to make easy reference with the part which shows each structure part described in drawing. The present invention is not limited to the structure and shape shown by these descriptions and reference numerals in the drawings.

この考案を実施するための一形態を示す要部の一部切欠分解斜視図である。It is a partially cutaway exploded perspective view of a main part showing an embodiment for carrying out the invention. 同じく組立後の一例における斜視図である。It is a perspective view in an example after assembly similarly. 同じく要部の断面図である。It is a sectional view of the principal part similarly. 同じく相互に接続固定する場合の接続における分解斜視図である。It is a disassembled perspective view in the connection in the case of connecting and fixing similarly.

以下、図面を参照してこの考案を実施するための一形態を説明すると、図において示される符号1はこの考案に係る組立梯子であり、左右に配した対状の梯子支柱2の相互間に、所定間隔毎に踏み桟5が着脱自在に横架固定されて成り、軽量化のため例えばアルミニウム材を素材として構成されている。   Hereinafter, an embodiment for carrying out the present invention will be described with reference to the drawings. Reference numeral 1 shown in the figure is an assembly ladder according to the present invention, and a pair of ladder struts 2 arranged on the left and right sides are arranged between each other. The tread bar 5 is detachably mounted horizontally at predetermined intervals, and is made of, for example, an aluminum material for weight reduction.

梯子支柱2は、帯板状の主材と、この主材の両側縁に主材自体の片面にほぼ直交させることで張り出し状に一体に設けた張り出し材とから成る断面でほぼH字形を呈しており、軽量性と耐荷重性とが得られようにしている。この梯子支柱2は、主材の片面が相対向するようにして左右に配されることで、相互間に踏み桟5が横架固定されるようになっている。また作業現場における高さに対応するよう全体長さが例えば4メートル、5メートル、6メートル等の長さに設定されている。   The ladder support 2 has a substantially H-shaped cross section including a strip-shaped main material and a projecting material integrally provided in a projecting manner by being substantially orthogonal to one side of the main material itself on both side edges of the main material. Therefore, light weight and load resistance can be obtained. The ladder struts 2 are arranged on the left and right sides so that one side of the main material is opposed to each other, so that the step bars 5 are horizontally fixed between each other. Further, the overall length is set to 4 meters, 5 meters, 6 meters, or the like so as to correspond to the height at the work site.

踏み桟5は、断面で円形を呈する中空筒材によって梯子1の幅員に対応した長さに設定されていて、踏み桟5の端部それぞれには、梯子支柱2の内側面に固着する固着プレート7が固定されている。この固着プレート7は、図に示すように、梯子支柱2の主材の幅員に比し広くはない幅員で適宜肉厚を有するほぼ正方形状に形成されており、踏み桟5の端部の周囲に溝状に屈曲形成した固着部6に噛み合うように連結することで固定されている。そして、この固着プレート7には、踏み桟5自体の空洞部に対応したプレート貫挿孔8が中心に開口形成されていて、固着プレート7自体の隅部、例えば四隅にはプレート取付孔9が開穿されている。   The step bar 5 is set to a length corresponding to the width of the ladder 1 by a hollow cylindrical material having a circular cross section, and a fixing plate that is fixed to the inner side surface of the ladder column 2 at each end of the step bar 5 7 is fixed. As shown in the figure, the fixing plate 7 is formed in a substantially square shape having a width that is not wider than the width of the main material of the ladder support 2 and having an appropriate thickness. It is being fixed by connecting so that it may mesh with the adhering portion 6 bent into a groove shape. The fixing plate 7 is formed with a plate insertion hole 8 corresponding to the cavity of the tread bar 5 itself. The plate mounting holes 9 are formed at the corners of the fixing plate 7 itself, for example, at the four corners. Opened.

一方、前記梯子支柱2には、踏み桟5を横架固定する位置に、踏み桟5の空洞部に対応してこの空洞部に連通する支柱貫挿孔3が開口形成されており、また、梯子支柱2と踏み桟5との相互間の組立のために、梯子支柱2に固着プレート7が当接されたときのプレート取付孔9に対応する支柱取付孔4が開穿されている。   On the other hand, in the ladder column 2, a column insertion hole 3 communicating with the hollow portion corresponding to the hollow portion of the step beam 5 is formed at the position where the step beam 5 is fixed horizontally. In order to assemble the ladder column 2 and the step bar 5 between each other, a column mounting hole 4 corresponding to the plate mounting hole 9 when the fixing plate 7 is brought into contact with the ladder column 2 is opened.

梯子支柱2相互間に横架された踏み桟5の固着プレート7が梯子支柱2の内側面に当接され、プレート取付孔9、支柱取付孔4それぞれが対応合致した状態でこれらに貫挿されるボルト、及びナットによる取付手段10を介して梯子支柱2相互間に踏み桟5が固定されるようにしてある。なお、図示例にあって、プレート取付孔9、支柱取付孔4はそれぞれが4ヶ所となるように開穿配列されているも、図示を省略したがこれらを3ヶ所とすることもできる。   The fixing plate 7 of the step rail 5 laid horizontally between the ladder columns 2 is brought into contact with the inner side surface of the ladder column 2, and the plate mounting holes 9 and the column mounting holes 4 are inserted into these in a state of corresponding correspondence. The tread bar 5 is fixed between the ladder struts 2 via mounting means 10 using bolts and nuts. In the illustrated example, the plate mounting holes 9 and the column mounting holes 4 are arranged in four holes so that each has four positions, but although not illustrated, these may be three.

図示例において、梯子支柱2の下端には、梯子1自体を支持面で支えるための支持台座15が揺動自在に設けられている。   In the illustrated example, a support base 15 for supporting the ladder 1 itself with a support surface is swingably provided at the lower end of the ladder support 2.

また、梯子1を複数連で連結する接続手段20が用意されている。この接続手段20は、図4に示すように、相互に接続される梯子1相互の重ね合わせ部分で、接続されるそれぞれの梯子1における踏み桟5の空洞部、プレート貫挿孔8、支柱貫挿孔3に貫挿され、梯子支柱2の外側方に端部が突出する接続バー21と、接続されるそれぞれの梯子1に貫挿されたそれぞれの接続バー21を貫挿させる複数の接続孔23が開穿されていて、接続バー21相互間に架け渡されて連結させる接続プレート22と、この接続プレート22の外側方に突出された接続バー21の突出部に貫挿固定されるピン状のストッパー24とから成る。   Further, connection means 20 for connecting the ladder 1 in a plurality of series is prepared. As shown in FIG. 4, the connecting means 20 is an overlapping portion of the ladders 1 connected to each other, and the cavity of the step bar 5 in each of the ladders 1 to be connected, the plate insertion hole 8, the column penetration. A connection bar 21 that is inserted through the insertion hole 3 and has an end projecting outwardly from the ladder support 2 and a plurality of connection holes through which each connection bar 21 is inserted through each connected ladder 1. 23 is opened, and a connecting plate 22 is connected between the connecting bars 21 to be connected, and a pin shape is inserted and fixed to the protruding portion of the connecting bar 21 protruding outward of the connecting plate 22. Stopper 24.

接続バー21は例えば中空パイプ製で、図示例の接続バー21は端部の突出部分がやや小径になっている段部構造としてあって、接続プレートの接続孔23の内径はこの突出部分の外径にほぼ対応している。そして、接続するように一部を重ね合わせた梯子1における重ね合わせ部位におけるそれぞれの踏み桟5それぞれに貫挿した接続バー21相互間に接続プレート22を掛け渡し、接続プレート22の外方に突出する接続バー21の突出部分に貫挿したストッパー24によって接続プレート22を介して接続バー21相互を固定的に連結する。このとき、ストッパー24は、接続プレート22の外側面位置とすることで接続プレート22のがたつきを防止し、接続される梯子1相互をしっかりと連結できるようにしてある。   The connection bar 21 is made of, for example, a hollow pipe, and the connection bar 21 in the illustrated example has a stepped structure in which the protruding portion of the end portion has a slightly small diameter, and the inner diameter of the connecting hole 23 of the connecting plate is outside the protruding portion. Almost corresponds to the diameter. Then, the connection plate 22 is extended between the connection bars 21 penetrating each of the step bars 5 in the overlapped portion of the ladder 1 that is partially overlapped so as to be connected, and protrudes outward of the connection plate 22. The connecting bars 21 are fixedly connected to each other via the connecting plate 22 by a stopper 24 inserted through the protruding portion of the connecting bar 21 to be connected. At this time, the stopper 24 is positioned at the outer surface of the connection plate 22 to prevent the connection plate 22 from rattling and to be able to firmly connect the connected ladders 1 to each other.

なお、図示を省略したが、この接続手段20を梯子1相互の重ね合わせ部分の複数箇所で使用することで、梯子1相互の接続を一層堅固にすることができる。   Although not shown in the figure, the connection between the ladders 1 can be further strengthened by using the connecting means 20 at a plurality of positions of the overlapping portions of the ladders 1.

次に梯子1の組立の一例を説明すると、左右に相対峙状に配した梯子支柱2相互間に踏み桟5を配置し、踏み桟5の空洞部を梯子支柱2の支柱貫挿孔3に対応合致させ、踏み桟5の固着プレート7を梯子支柱2の内側面に当接させて、プレート取付孔9、支柱取付孔4によって取付手段10を介して梯子支柱2に踏み桟5を固定し、梯子1とする。   Next, an example of the assembly of the ladder 1 will be described. A step beam 5 is disposed between ladder columns 2 arranged in a left and right relative to each other, and a hollow portion of the step beam 5 is formed in a column insertion hole 3 of the ladder column 2. Correspondingly matched, the fixing plate 7 of the step pole 5 is brought into contact with the inner surface of the ladder column 2, and the step frame 5 is fixed to the ladder column 2 via the attachment means 10 by the plate attachment hole 9 and the column attachment hole 4. Ladder 1 is assumed.

踏み桟5が破損した場合には、破損した踏み桟5の例えば上下の踏み桟5の取付手段10を若干緩めておいて、破損した踏み桟5を取り外し、新規の踏み桟5を再度横架固定すれば良い。あるいは、梯子支柱2が破損した場合には、踏み桟5から取り外し、新規の梯子支柱2によって再度組立構成すれば良い。   When the stepping bar 5 is damaged, the mounting means 10 of the damaged stepping bar 5 is loosened slightly, for example, the damaged stepping bar 5 is removed, and a new stepping bar 5 is mounted again. Fix it. Alternatively, when the ladder support 2 is damaged, the ladder support 2 may be detached from the step bar 5 and reassembled with the new ladder support 2.

また、梯子1を複数連で接続する場合には、梯子支柱2の端部それぞれを重ね合わせ、重ね合わせたそれぞれの梯子1における踏み桟5に貫挿した接続バー21を接続プレート22によって掛け渡し、ストッパー24にて固定すれば良い。   When the ladder 1 is connected in a plurality of series, the end portions of the ladder support 2 are overlapped, and the connection bar 21 penetrating the step bar 5 of each overlapped ladder 1 is spanned by the connection plate 22. The stopper 24 may be used for fixing.

1…梯子
2…梯子支柱 3…支柱貫挿孔
4…支柱取付孔 5…踏み桟
6…固着部 7…固着プレート
8…プレート貫挿孔 9…プレート取付孔
10…取付手段 15…支持台座
20…接続手段 21…接続バー
22…接続プレート 23…接続孔
24…ストッパー
DESCRIPTION OF SYMBOLS 1 ... Ladder 2 ... Ladder support | pillar 3 ... Support | pillar penetration hole 4 ... Support | pillar attachment hole 5 ... Tread bar 6 ... Adhering part 7 ... Adhering plate 8 ... Plate penetration hole 9 ... Plate attachment hole 10 ... Mounting means 15 ... Supporting base 20 ... Connection means 21 ... Connection bar 22 ... Connection plate 23 ... Connection hole 24 ... Stopper

Claims (3)

左右に配した対状の梯子支柱の相互間に、所定間隔毎に踏み桟が着脱自在に横架固定されて成る組立梯子において、踏み桟は、断面で円形を呈する中空筒材製で、端部それぞれには、梯子支柱の内側面に固着する矩形状の固着プレート7固定されていて、この固着プレートには、踏み桟自体の空洞部に対応したプレート貫挿孔が中心に開口形成され、固着プレート自体の隅部にはプレート取付孔が開穿されており、梯子支柱は、踏み桟の横架固定位置に、踏み桟の空洞部に連通する支柱貫挿孔が開口形成され、固着プレートのプレート取付孔に対応する支柱取付孔が開穿されており、プレート取付孔、支柱取付孔それぞれを対応合致させて梯子支柱相互間で、梯子支柱と踏み桟とが着脱自在に固定される取付手段を備えて成ることを特徴とする組立梯子。   In an assembly ladder in which a step bar is detachably mounted horizontally at predetermined intervals between paired ladder posts arranged on the left and right, the step bar is made of a hollow cylindrical material having a circular shape in cross section. Each part is fixed with a rectangular fixing plate 7 that is fixed to the inner side surface of the ladder column, and this fixing plate is formed with a plate insertion hole corresponding to the hollow part of the treadle itself as an opening, A plate mounting hole is opened in the corner of the fixed plate itself. The ladder support post is formed with a post insertion hole communicating with the cavity of the step post at the horizontal fixing position of the step post. The column mounting holes corresponding to the plate mounting holes are opened, and the plate mounting holes and the column mounting holes are matched to each other so that the ladder columns and the treadle are detachably fixed between the ladder columns. Characterized by comprising means Assembled ladder. 梯子支柱は、帯板状の主材と、この主材の両側縁に主材自体の片面にほぼ直交させることで張り出し状に一体に設けた張り出し材とから成る断面でほぼH字形を呈し、主材の片面が相対向するようにして左右に配される請求項1に記載の組立梯子。   The ladder strut is substantially H-shaped in cross section consisting of a strip-like main material and a projecting material integrally provided in a projecting manner by being substantially perpendicular to one side of the main material itself on both side edges of the main material, The assembly ladder according to claim 1, wherein one side of the main material is arranged on the left and right sides so as to face each other. 組立梯子を複数連で接続する接続手段を備えており、この接続手段は、相互に接続される梯子相互の重ね合わせ部分で、接続されるそれぞれの梯子における踏み桟の空洞部、プレート貫挿孔、支柱貫挿孔に貫挿され、梯子支柱の外側方に端部が突出する接続バーと、接続されるそれぞれの梯子の踏み桟に貫挿されたそれぞれの接続バーの端部を貫挿させる複数の接続孔が開穿されていて、接続バー相互間に架け渡されて連結させる接続プレートと、この接続プレートの外側方に突出された接続バーの突出部に貫挿固定されるピン状のストッパーとから成る請求項1または2に記載の組立梯子。   It is provided with connecting means for connecting a plurality of assembly ladders in series, and this connecting means is an overlapping portion of the ladders connected to each other, the hollow portion of the step rail in each connected ladder, the plate insertion hole The connection bar that is inserted into the column insertion hole and protrudes outward from the ladder column, and the end of each connection bar that is inserted into the stepping bar of each connected ladder are inserted. A plurality of connection holes are opened, a connection plate that is bridged between the connection bars and connected, and a pin-like shape that is inserted and fixed to the protruding portion of the connection bar protruding outward of the connection plate The assembly ladder according to claim 1 or 2, comprising a stopper.
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