JP2022177426A - Temporary handrail and method of installing the same - Google Patents

Temporary handrail and method of installing the same Download PDF

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JP2022177426A
JP2022177426A JP2021083668A JP2021083668A JP2022177426A JP 2022177426 A JP2022177426 A JP 2022177426A JP 2021083668 A JP2021083668 A JP 2021083668A JP 2021083668 A JP2021083668 A JP 2021083668A JP 2022177426 A JP2022177426 A JP 2022177426A
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handrail
temporary
scaffolding
bracket
support
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JP6990946B1 (en
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亮祐 川久
Ryosuke Kawahisa
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Sugiko Group Holdings Co Ltd
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Abstract

To appropriately disperse the weight of handrail material itself and external loads acting on handrail bars to upper and lower horizontal support members of a temporary handrail bracket, and enlarge an allowed variable setting range of the overhang dimension of the temporary handrail bracket.SOLUTION: A temporary handrail bracket (1) comprises: a standard attachment unit (4) attached to a standard (P) of a temporary scaffold (S); a handrail receiving unit (2) to support or bear handrail bars (7, 8, 9); and horizontal support units (3) having a telescopic structure. The handrail receiving unit has a structure in which upper and lower supports (21) connected to the handrail bars are integrally connected by a vertical pipe (22). Each of the horizontal support units has a fixed pipe (31) fixed to the standard attachment unit, and an expansion rod (32) connected to a support of the handrail receiving unit. A handrail bar side end of the expansion rod is connected to the support in an intra-channel space (25) of the support having a channel section. Both ends (33, 34) of the fixed pipe are open to allow insertion of the expansion rod.SELECTED DRAWING: Figure 8

Description

本発明は、仮設手摺及びその設置方法に関するものであり、より詳細には、建設工事中又は補修・改修工事中の建築物又は構造物等の開口部又は開放領域に設置され、恒久的な本設手摺が開口部又は開放領域において新設又は復旧されるまでの工事期間中に開口部又は開放領域の手摺として過渡的に機能する仮設手摺及びその設置方法に関するものである。 TECHNICAL FIELD The present invention relates to a temporary handrail and its installation method, and more particularly to a temporary handrail that is installed in an opening or open area of a building or structure during construction or repair/renovation work to provide a permanent handrail. The present invention relates to a temporary handrail that transitionally functions as a handrail for an opening or an open area during a construction period until the handrail is newly installed or restored in the opening or the open area, and a method for installing the same.

建築物、土木構造物、プラント設備等(以下、「建築物又は構造物」という。)の建設工事(新築工事、増設工事、補修・改修工事を含む)において使用される仮設足場として、枠組足場、楔(くさび)緊結式足場及び単管足場等の各種形式の足場が知られている(「日本建築学会 建築工事標準仕様書・同解説 JASS2 仮設工事」(非特許文献1))。なお、楔緊結式足場は、楔足場、楔結合式足場等の名称でも呼ばれている。 Frame scaffolding as temporary scaffolding used in construction work (including new construction, expansion work, repair and renovation work) for buildings, civil engineering structures, plant facilities, etc. (hereinafter referred to as "buildings or structures") , wedge binding type scaffolding and single pipe scaffolding are known (“Architectural Institute of Japan Standard Specifications for Architectural Construction and Commentary JASS2 Temporary Construction” (Non-Patent Document 1)). The wedge binding type scaffolding is also called a wedge scaffolding, a wedge binding type scaffolding, and the like.

枠組足場は、建枠を建込み、床付き布枠を作業用足場板として建枠の各層に架設することにより建設予定又は建設中の建築物又は構造物の外側に構築され、建設工事の進捗に相応して建枠を上層に順次建込むことによって上層に延長され、建設工事の完了直前の適切な時期に解体される。建枠の脚柱(支柱部分)は、一般に、外径42.7mmの鋼管である(「JIS A 8951 鋼管足場」(非特許文献2))。 Framed scaffolding is constructed outside a building or structure scheduled to be constructed or under construction by erecting a building frame and erecting cloth frames with floors on each layer of the building frame as scaffolding boards for work. It will be extended to the upper floors by successive erection of the building frames to the upper floors in accordance with the above, and will be demolished at an appropriate time immediately prior to the completion of the construction work. The pedestal (pillar portion) of the frame is generally a steel pipe with an outer diameter of 42.7 mm (“JIS A 8951 steel pipe scaffolding” (Non-Patent Document 2)).

楔緊結式足場は、フランジ部(又は鍔部)又は支柱ポケット部(ボックス部又は函形部)等の緊結部を所定間隔に配設した楔緊結式足場用の支柱を建込み、布材、腕木材、床付き布枠、頭つなぎ材、根がらみ材、ブレース等の足場構成部材を楔結合等によって支柱の緊結部に順次連結することにより、枠組足場と同様に建設予定又は建設中の建築物又は構造物の外側に構築され、建設工事の進捗に相応して建枠を上層に順次建込むことによって上層に延長され、建設工事の完了直前の適切な時期に解体される。楔緊結式足場の支柱本体は、一般に、外径42.7mm~48.6mmの鋼管である。 Wedge-tied scaffolding is a wedge-tied scaffolding strut that has fastening parts such as flanges (or collars) or strut pocket parts (box parts or box-shaped parts) arranged at predetermined intervals. By sequentially connecting scaffolding constituent members such as arm timbers, cloth frames with floors, head joint materials, root entanglement materials, and braces to the binding parts of the columns by wedge joints, etc., construction planned or under construction in the same way as frame scaffolding It is built on the outside of an object or structure, extended to the upper floors by successively erecting building frames on the upper floors in accordance with the progress of the construction work, and demolished at an appropriate time immediately before the completion of the construction work. The strut bodies of wedge-tied scaffolds are generally steel pipes with an outside diameter of 42.7 mm to 48.6 mm.

単管足場(「鋼製単管足場」とも呼ばれる。)は、地盤面の敷板上に固定型ベース金具を所定間隔に配置し、単管(「単管パイプ」の略称。「単管足場用鋼管」(JIS A 8951)と同義。)を建地として建込むとともに、根がらみ、腕木、布、中桟、手摺及び筋交い等を構成する単管を緊結金具(一般に「クランプ」又は「クランプ金具」等の名称で呼ばれている。)によって緊結し、足場板等を腕木上に敷設することにより組立てられる。単管足場も又、枠組足場及び楔緊結式足場と同様、建設工事の進捗に相応して単管を上層に順次建込む形式の仮設足場であり、建設予定又は建設中の建築物又は構造物の外側に構築され、建設工事の完了直前の適切な時期に解体される。なお、非特許文献1等の多くの文献に記載されたとおり、単管は、外径48.6mmの鋼管である(「JIS A 8951 鋼管足場」(非特許文献2))。 Single-tube scaffolding (also called “steel single-tube scaffolding”) consists of fixed base metal fittings placed at predetermined intervals on the sole plate of the ground surface, Steel pipes (synonymous with JIS A 8951) are erected as a building site, and single pipes that make up roots, brackets, cloth, crosspieces, handrails, braces, etc. ), and scaffolding boards, etc., are laid on the brackets to assemble them. Single-tube scaffolding is also a form of temporary scaffolding in which single-tube scaffolding is erected in sequence in accordance with the progress of construction work, similar to frame scaffolding and wedge binding scaffolding. constructed outside the building and dismantled at an appropriate time immediately prior to the completion of the construction work. As described in many documents such as Non-Patent Document 1, the single pipe is a steel pipe with an outer diameter of 48.6 mm (“JIS A 8951 Steel Pipe Scaffolding” (Non-Patent Document 2)).

一般に、建築物の新築工事において、躯体工事直後(外装仕上工事前)の建築物等のベランダ、バルコニー、マシンハッチ、機材等搬入・搬出口等の開口部又は開放領域は、墜落防止用の恒久的な手摺(建築物の一部を構成する本設手摺)や扉等を設置する前の状態である。また、補修・改修工事中の建築物等においては、補修・改修部分の開口部又は開放領域の手摺は、過渡的に撤去されることがある。このような状況においては、仮設手摺を建築物等の開口部又は開放領域に過渡的に設置し、本設手摺の設置又はその復旧の直前に仮設手摺を撤去する必要が生じる。なお、本明細書において、「開口部」又は「開放領域」は、床が存在しない屋内領域、或いは、屋外空間に開放し、安全性確保のために手摺等の設置を要する建築部分等を意味する。 In general, in new building construction, openings or open areas such as balconies, balconies, machine hatches, entrances for loading and unloading equipment, etc., of buildings immediately after frame work (before exterior finishing work) should be covered with a permanent protective cover for fall prevention. This is the state before the installation of traditional handrails (permanent handrails that constitute part of the building) and doors. In addition, in buildings that are undergoing repair/renovation work, handrails in openings or open areas of repair/renovation parts may be temporarily removed. Under such circumstances, it becomes necessary to temporarily install a temporary handrail in an opening or open area of a building or the like, and to remove the temporary handrail immediately before installing or restoring a permanent handrail. In this specification, "opening" or "open area" means an indoor area where there is no floor, or a building part that opens to an outdoor space and requires the installation of a handrail or the like to ensure safety. do.

図23(A)には、建設工事中の建築物Aの屋外側に建築工事用の仮設足場Sを設置した状態が例示されている。建築物Aは、例えば、鉄筋コンクリート構造の集合住宅であり、仮設足場Sは、例えば、枠組足場である。図24には、建設工事完了後(但し、仮設足場撤去前)の建築物Aが示されており、建築物AのベランダBには、本設の金属製手摺D及び境界壁E等が設置される。しかし、図23(A)に示す建設工事中のベランダBには、手摺D及び境界壁E等は、未だ設置されておらず、各層(各階)の床構造体Fの間の領域は外界に略完全に開放した状態である。即ち、建設工事中の建築物Aにおいては、ベランダBの開口部又は開放領域等には、金属製の手摺(本設手摺)D等が設置されるが、建築物Aの建設工事中においては、本設手摺Dが未だ設置されず、或いは、過渡的に撤去された状態の時期又は期間があり、このような工事期間中には、建築物等の外面(外壁面等)と仮設足場Sとの間に形成される寸法200~300mm程度の隙間Gに作業従事者等が足を踏み外すことが懸念される。このような事態を未然に防止し、作業の安全性を確保すべく、仮設手摺Jを工事期間中に開口部又は開放領域に設置する必要が生じる。この種の仮設手摺Jを設置するための資材又は機材として、例えば、手摺受M及び手摺材Nとから構成される仮設手摺Jが知られている(ホリー株式会社の総合カタログ 1995年版 第115頁(非特許文献3))。この仮設手摺Jの手摺受Mは、図23(B)に示す如く、外径35mm程度の鋼管Tの基端部(足場側端部)に同心状に取付けたクランプCを仮設足場の各支柱又は各建地Pに緊結し、これにより、手摺受Mを仮設足場Sの各支柱又は各建地Pから建物側に向けて水平に突設するとともに、鋼管Tの先端部に取付けられた上向きロックピンRに対して手摺材Nの端部係止手段を係止し、これにより、隣り合う手摺受Mの間に手摺材Nを水平に架設するように構成されていた。なお、手摺桟Nは、外径25mm程度の鋼管の両端部をロックピン係止用に偏平化し且つ貫通孔を穿設した公知の汎用的仮設資材である。 FIG. 23(A) illustrates a state in which a temporary scaffolding S for construction work is installed on the outdoor side of a building A under construction. The building A is, for example, an apartment building with a reinforced concrete structure, and the temporary scaffolding S is, for example, a framework scaffolding. Fig. 24 shows Building A after construction work is completed (but before temporary scaffolding is removed). On veranda B of Building A, permanent metal handrail D and boundary wall E are installed. be done. However, on the veranda B under construction shown in FIG. It is almost completely open. That is, in the building A under construction, metal handrails (permanent handrails) D and the like are installed in the openings or open areas of the veranda B, but during the construction work of the building A , there is a period or period in which the permanent handrail D has not yet been installed or has been temporarily removed. There is a concern that a worker or the like may miss a step in the gap G of about 200 to 300 mm in size formed between and. In order to prevent such a situation and ensure the safety of the work, it becomes necessary to install a temporary handrail J at the opening or open area during the construction period. As materials or equipment for installing this kind of temporary handrail J, for example, a temporary handrail J composed of a handrail receiver M and a handrail material N is known (General Catalog of Holly Co., Ltd., 1995 edition, p. 115). (Non-Patent Document 3)). As shown in Fig. 23(B), the handrail receiver M of this temporary handrail J is a steel pipe T having an outer diameter of about 35mm. Alternatively, it is tied to each construction site P, thereby horizontally projecting the handrail M from each post of the temporary scaffold S or each construction site P toward the building side, and attached to the tip of the steel pipe T An end locking means of the handrail material N is locked to the lock pin R, and thereby the handrail material N is constructed horizontally between the adjacent handrail receivers M. As shown in FIG. The handrail bar N is a known general-purpose temporary material in which both ends of a steel pipe having an outer diameter of about 25 mm are flattened for engaging lock pins and through holes are bored.

この種の仮設手摺として、このような手摺受を上下一対の単管によって形成した仮設手摺用ブラケットが、特許文献1~3に記載されている。このブラケットは、鉛直な連結管によって上下一対の水平単管を相互連結するとともに、各単管の基端部(足場側端部)に同心状に取付けたクランプを仮設足場の各支柱又は各建地に緊結した構造を有する。ブラケットを構成する上下の単管の各先端部には、上向きロックピン又はクランプが取付けられる。ロックピン係止部を両端に備えた上記手摺材、或いは、単管からなる手摺材が、ロックピン又はクランプによってブラケットに係止又は緊結される。所望により、ブラケットを構成する上下の管材は、張り出し長を調節するための伸縮構造を有し、仮設足場の支柱又建地とブラケットの先端部との間の距離(即ち、ブラケットの突出寸法又は張り出し寸法)は、管材の伸縮構造により調節される。 As a temporary handrail of this kind, Patent Documents 1 to 3 describe temporary handrail brackets in which such handrail receivers are formed by a pair of upper and lower single pipes. This bracket interconnects a pair of upper and lower horizontal single pipes with a vertical connecting pipe, and a clamp attached concentrically to the base end of each single pipe (end on the scaffold side) It has a structure tightly bound to the ground. An upward lock pin or clamp is attached to each tip of the upper and lower single tubes that constitute the bracket. The handrail material provided with lock pin locking portions at both ends or the handrail material made of a single tube is locked or tightened to the bracket by a lock pin or a clamp. If desired, the upper and lower pipe members that make up the bracket have a telescopic structure for adjusting the overhang length, and the distance between the support of the temporary scaffold or the construction site and the tip of the bracket (i.e., the projection dimension of the bracket or overhang dimension) is adjusted by the telescoping structure of the tube.

実用新案登録第3186625号掲載公報Publication of Utility Model Registration No. 3186625 特許第6616633号掲載公報Publication of Japanese Patent No. 6616633 特許第6782382号掲載公報Publication of Japanese Patent No. 6782382

日本建築学会・建築工事標準仕様書・同解説 JASS2 仮設工事、第79~106頁Architectural Institute of Japan, Architectural Standard Specifications and Commentary, JASS2 Temporary Construction, pp.79-106 JIS A 8951 鋼管足場、第1~9頁JIS A 8951 Steel pipe scaffolding, pages 1-9 ホリー株式会社の総合カタログ 1995年版、 第115頁General catalog of Holly Co., Ltd. 1995 edition, page 115

しかしながら、このような従来の仮設手摺では、手摺材に作用する外部荷重及び手摺材の自重は、手摺受又はブラケットを構成する各鋼管又は各単管の先端部に直に作用するので、特許文献1~3に記載された如く上下の単管を鉛直な連結管によって相互連結したとしても、外部荷重及び手摺材自重を上下の鋼管又は単管に均一に分散し難く、従って、この種の仮設手摺おいては、外部荷重及び手摺材自重に対して上下の鋼管又は単管が潜在的に保有する耐力又は支持力を有効に活用し難い。 However, in such a conventional temporary handrail, the external load acting on the handrail material and the self weight of the handrail material act directly on the tip of each steel pipe or each single pipe that constitutes the handrail receiver or bracket. Even if the upper and lower single pipes are interconnected by vertical connecting pipes as described in 1 to 3, it is difficult to uniformly distribute the external load and the weight of the handrail material to the upper and lower steel pipes or single pipes. In handrails, it is difficult to effectively utilize the potential strength or bearing capacity of the upper and lower steel pipes or single pipes against the external load and the weight of the handrail material.

また、前述のとおり、本設手摺の設置前又は復旧前に仮設手摺を撤去する必要があるが、このような場合、特許文献1~3に記載された仮設手摺では、仮設手摺用ブラケットの伸縮構造を利用してブラケットの突出寸法又は張り出し寸法を短縮し、所望により、平面視においてブラケットを全体的に仮設足場側に傾斜させて実質的なブラケットの突出寸法又は張り出し寸法を更に短縮し、これにより、仮設手摺を仮設足場側に効果的に退避させることができる。かくして仮設手摺を本設手摺の設置又は復旧作業の前に仮設足場の側に退避させることにより、仮設手摺を解体・撤去することなく、本設手摺を設置又は復旧することができ、この結果、仮設手摺を仮設足場本体の解体・撤去時に一緒に解体・撤去する工法を採用し、仮設工事の作業効率を向上することが可能となる。しかしながら、特許文献1~3に記載された仮設手摺用ブラケットにおいては、単管の先端部又は中間部に配設されたロックピン、クランプ又は連結管や、単管の基端部に同心状に設けられたクランプ等の存在又は干渉によってブラケットの短縮寸法が制限されるので、ブラケットの突出寸法又は張り出し寸法を所望の如く短縮し難い。 In addition, as mentioned above, it is necessary to remove the temporary handrail before installing or restoring the permanent handrail. The structure is used to reduce the projection or overhang of the brackets, and if desired, the brackets are entirely inclined toward the temporary scaffold in plan view to further reduce the substantial projection or overhang of the brackets. Thus, the temporary handrail can be effectively retracted to the temporary scaffold side. Thus, by retracting the temporary handrail to the side of the temporary scaffold before installing or restoring the permanent handrail, the permanent handrail can be installed or restored without dismantling or removing the temporary handrail. By adopting a method of dismantling/removing the temporary handrail together with dismantling/removing the main body of the temporary scaffolding, it is possible to improve the working efficiency of the temporary construction work. However, in the temporary handrail brackets described in Patent Documents 1 to 3, a lock pin, a clamp, or a connecting pipe disposed at the tip or intermediate portion of the single pipe, or concentrically at the base end of the single pipe Since the shortened dimension of the bracket is limited by the presence or interference of the provided clamp or the like, it is difficult to shorten the projecting dimension or projecting dimension of the bracket as desired.

更には、ロックピンによって手摺材を支持する構造の仮設手摺(特許文献2、3及び非特許文献3)の場合、手摺桟の強度又は耐力を所望の如く向上し難く、他方、クランプによって手摺桟の単管を支持する構造の仮設手摺(特許文献1~3)の場合には、仮設手摺用ブラケットの間隔(スパン)と単管の全長とが必ずしも適合し難く、仮設工事の作業効率を所望の如く向上し難いという課題がある。加えて、このような従来の仮設手摺を楔緊結式足場に設置する場合、異種構造の仮設足場の部品又は部材を要するので、部品又は部材の品種や、部材数又は部品点数が増大し、資材管理が煩雑化するという問題が生じる。 Furthermore, in the case of temporary handrails (Patent Documents 2 and 3 and Non-Patent Document 3) having a structure in which a handrail material is supported by lock pins, it is difficult to improve the strength or resistance of the handrail bars as desired, and on the other hand, clamps are used to hold the handrail bars. In the case of temporary handrails (Patent Documents 1 to 3) having a structure that supports a single pipe, it is difficult to match the interval (span) of the temporary handrail bracket with the total length of the single pipe, and work efficiency in temporary construction is desired. There is a problem that it is difficult to improve like In addition, when installing such a conventional temporary handrail on a wedge binding type scaffold, parts or members of the temporary scaffold with different structures are required, so the variety of parts or members, the number of members, or the number of parts increases. A problem arises that the management becomes complicated.

本発明は、このような事情又は課題に鑑みてなされたものであり、その目的とするところは、建設工事中又は補修・改修工事中等(以下、「施工中」という。)の建築物又は構造物の開口部又は開放領域に過渡的に手摺を設置すべく、仮設足場から建築物又は構造物に向かって張り出して設置される仮設手摺において、手摺桟に作用する外部荷重及び手摺材の自重を仮設手摺用ブラケットの上下の水平支持部材に実質的に均等に分散し、或いは、上下の水平支持部材の剛性に相応して適当に分散させることができる仮設手摺及びその設置方法を提供することにある。 The present invention has been made in view of such circumstances or problems, and its purpose is to provide a building or structure that is under construction or repair/renovation work (hereinafter referred to as "under construction"). In temporary handrails that are installed overhanging from temporary scaffolds toward buildings or structures in order to temporarily install handrails in openings or open areas, external loads acting on handrail bars and self-weight of handrail materials To provide a temporary handrail and a method for installing the temporary handrail which can be distributed substantially evenly to the upper and lower horizontal support members of a temporary handrail bracket or can be appropriately distributed according to the rigidity of the upper and lower horizontal support members. be.

本発明は又、施工中の建築物又は構造物の開口部又は開放領域に過渡的に手摺を設置すべく、仮設足場から建築物又は構造物に向かって張り出して設置される仮設手摺において、可変設定可能な仮設手摺用ブラケットの張り出し寸法の範囲を拡大することができる仮設手摺及びその設置方法を提供することを目的とする。 The present invention also relates to a temporary handrail installed overhanging a building or structure from a temporary scaffold to temporarily install the handrail in an opening or open area of a building or structure under construction. To provide a temporary handrail and a method for installing the temporary handrail capable of expanding the range of settable overhang dimensions of a temporary handrail bracket.

本発明は更に、施工中の建築物又は構造物の開口部又は開放領域に過渡的に手摺を設置すべく、仮設足場から建築物又は構造物に向かって張り出して設置される仮設手摺において、手摺桟の強度又は耐力を向上するとともに、殊に仮設手摺を楔緊結式足場に設置する場合に、仮設手摺設置作業の作業効率を向上し且つ資材管理を簡素化することができる仮設手摺及びその設置方法を提供することを目的とする。 The present invention further provides a temporary handrail that is installed overhanging from a temporary scaffolding toward a building or structure to temporarily install the handrail in an opening or open area of a building or structure under construction. A temporary handrail and its installation that can improve the strength or bearing force of crosspieces, improve the work efficiency of temporary handrail installation work and simplify material management, especially when installing temporary handrails on wedge-tied scaffolds. The purpose is to provide a method.

上記目的を達成すべく、本発明は、施工中の建築物又は構造物(A)の開口部又は開放領域に過渡的に手摺を設置するために仮設足場(S)から張り出して設置される仮設手摺用ブラケット(1)と、隣り合う仮設手摺用ブラケットの先端部の間に架設される手摺桟(7,8,9)とから構成される仮設手摺(10)において、
前記仮設手摺用ブラケットは、手摺桟を支持又は支承する手摺受けユニット(2)と、入れ子式伸縮構造を有する上下の水平支持ユニット(3)と、仮設足場の建地(P)に取付け可能な建地取付けユニット(4)とから構成され、
該建地取付けユニットは、仮設足場の建地に着脱可能に連結される上下の金属製連結具(41)を備え、
前記手摺受けユニットは、手摺桟が連結される上下の金属製支持具(21)と、該支持具を一体的に相互連結する金属製の縦管(22)とを備え、
前記水平支持ユニットは、実質的に水平に延びる固定管(31)及び伸縮ロッド(32)を有し、前記伸縮ロッドの足場側部分は、前記固定管の管内領域に延入し、前記伸縮ロッドの手摺桟側端部は前記支持具に連結されていることを特徴とする仮設手摺(請求項1)を提供する。
In order to achieve the above object, the present invention provides a temporary scaffold (S) overhanging from a temporary scaffold (S) to temporarily install a handrail in an opening or open area of a building or structure (A) under construction. In a temporary handrail (10) composed of a handrail bracket (1) and handrail bars (7, 8, 9) installed between the tips of adjacent temporary handrail brackets,
The temporary handrail bracket includes a handrail receiving unit (2) that supports or bears the handrail bar, upper and lower horizontal support units (3) that have a telescoping structure, and can be attached to the construction site (P) of the temporary scaffolding. It consists of a construction site installation unit (4),
The construction site attachment unit includes upper and lower metal connectors (41) that are detachably connected to the construction site of the temporary scaffold,
The handrail receiving unit comprises upper and lower metal supports (21) to which handrail bars are connected, and metal vertical pipes (22) that integrally interconnect the supports,
The horizontal support unit has a substantially horizontally extending fixed tube (31) and a telescopic rod (32), the scaffolding side portion of the telescopic rod extends into the intra-tube region of the fixed tube, and the telescopic rod A temporary handrail (Claim 1) is provided, characterized in that the end of the handrail bar is connected to the support.

好ましくは、上記伸縮ロッドの手摺桟側端部は上記支持具に一体的に連結され、上記固定管の足場側端部は上記連結具に一体的に連結される。好適には、上記連結具は、仮設工事用クランプ(5)によって仮設足場の建地に緊結される。所望により、上記支持具は、係止部付き手摺材の係止孔に挿入可能なピン形係止具(23)と、単管を緊結可能な仮設工事用クランプ(28)とを有し、仮設手摺用ブラケットの上下反転等によって、係止部付き手摺材(7)又は単管(8)を手摺桟として選択的に支承又は支持し得るように構成される。好適には、上下の固定管同士、或いは、上下の連結具同士が金属製の縦管(42)等によって直接又は間接的に相互連結され、上下の水平支持ユニットは、伸縮ロッドの部分を除き、互いに一体化される。 Preferably, the end of the extensible rod on the handrail side is integrally connected to the support, and the end of the fixed tube on the scaffold side is integrally connected to the connection. Preferably, the couplings are fastened to the construction site of the temporary scaffolding by means of temporary construction clamps (5). If desired, the support tool has a pin-shaped locking tool (23) that can be inserted into the locking hole of the handrail material with a locking part, and a temporary construction clamp (28) that can tighten a single pipe, The temporary handrail bracket is turned upside down or the like so that the handrail material (7) with locking portion or the single pipe (8) can be selectively supported or supported as a handrail crosspiece. Preferably, the upper and lower fixed pipes or the upper and lower connectors are directly or indirectly connected to each other by metal vertical pipes (42) or the like, and the upper and lower horizontal support units except for the telescopic rod portion , are integrated with each other.

本発明の上記構成によれば、手摺桟に作用する外部荷重及び手摺材の自重は、支持具及び縦管を一体化した手摺受けユニットを介して上下の伸縮ロッドに伝達する。このため、伸縮ロッドの先端部に作用する荷重は、上下の水平支持ユニットの剛性が同一である場合には均等に分散し、上下の水平支持ユニットの剛性が相違する場合には、各水平支持ユニットの剛性に相応して分散する。例えば、上側の手摺桟のみに外部荷重が作用した場合であっても、上側の水平支持ユニットのみに応力が作用するのではなく、上下の水平支持ユニットの各剛性に相応した応力が上下の水平支持ユニットに夫々作用する。従って、上下の水平支持ユニットが適切に協働して外部荷重を支持するように仮設手摺用ブラケットの各部構造を設計することにより、構成部材又は構成部品の潜在的な強度を有効に活用することができるので、仮設手摺用ブラケットの部材断面の縮小や軽量化を図ることが可能となる。また、伸縮ロッドの先端部を手摺受けユニットによって相互連結することにより、上下の伸縮ロッドの中間部分を相互連結することなく、ブラケットの剛性を確保し得るので、上下の伸縮ロッドの中間部を相互連結又は連繋する連繋管又は連結管等を省略することが可能となる。これは、水平支持ユニットの伸縮可能寸法の寸法範囲拡大を可能するとともに、ブラケットの設計自由度の向上を可能にするので、実務的に有利である。 According to the above configuration of the present invention, the external load acting on the handrail bar and the weight of the handrail material are transmitted to the upper and lower extensible rods via the handrail receiving unit that integrates the support member and the vertical pipe. Therefore, the load acting on the tip of the telescopic rod is evenly distributed when the rigidity of the upper and lower horizontal support units is the same. distributed according to the stiffness of the unit. For example, even if an external load acts only on the upper handrail bar, the stress does not act only on the upper horizontal support unit, but rather the stress corresponding to each rigidity of the upper and lower horizontal support units. Each acts on a support unit. Therefore, by designing the structure of each part of the temporary handrail bracket so that the upper and lower horizontal support units cooperate appropriately to support the external load, the potential strength of the component member or parts should be effectively utilized. Therefore, it is possible to reduce the cross section of the member of the temporary handrail bracket and reduce the weight. Further, by connecting the tips of the telescopic rods to each other by the handrail receiving unit, the rigidity of the bracket can be ensured without connecting the intermediate portions of the upper and lower telescopic rods. It is possible to omit a connecting pipe or a connecting pipe or the like to be connected or connected. This is practically advantageous because it enables an expansion of the dimension range of the extendable dimensions of the horizontal support unit and an improvement in the degree of freedom in designing the bracket.

本発明は又、施工中の建築物又は構造物(A)の開口部又は開放領域に過渡的に手摺を設置するために仮設足場(S)から張り出して設置される仮設手摺用ブラケット(1)と、隣り合う仮設手摺用ブラケットの先端部の間に架設される手摺桟(7,8,9)とから構成される仮設手摺(10)において、
前記仮設手摺用ブラケットは、手摺桟を支持又は支承する手摺受けユニット(2)と、入れ子式伸縮構造を有する上下の水平支持ユニット(3)と、仮設足場の建地(P)に取付け可能な建地取付けユニット(4)とから構成され、
前記建地取付けユニットは、仮設足場の建地(P)に着脱可能に連結される上下の金属製連結具(41)を備え、上側の前記連結具は、上方に向かって開口した断面溝形、断面L形又はボックス形の金具からなり、下側の前記連結具は、下方に向かって開口した断面溝形、断面L形又はボックス形の金具からなり、
前記手摺受けユニットは、手摺桟が連結される上下の金属製支持具(21)と、該支持具を一体的に相互連結する金属製の縦管(22)とを備え、前記支持具は夫々、仮設足場に向かって開口した断面溝形、断面L形又はボックス形の金具からなり、
前記水平支持ユニットは、実質的に水平に延びる固定管(31)及び伸縮ロッド(32)を有し、該固定管の足場側端部は、前記連結具に連結され、前記伸縮ロッドの全長は、前記固定管の全長よりも長く、前記伸縮ロッドの足場側部分は、前記固定管の管内領域に延入し且つ水平支持ユニットの最短縮時に固定管の足場側端部の開口(33)から足場側に突出し、前記伸縮ロッドの手摺桟側の端部は、前記支持具の溝内空間又は内側空間(25)に延入して該支持具に連結され、前記固定管の手摺桟側の端部は、水平支持ユニットの最短縮時に前記支持具の溝内空間又は内側空間に延入することを特徴とする仮設手摺(請求項2)を提供する。
The present invention also provides a temporary handrail bracket (1) overhanging a temporary scaffolding (S) to temporarily install a handrail in an opening or open area of a building or structure (A) under construction. and handrail bars (7, 8, 9) constructed between the tips of adjacent temporary handrail brackets,
The temporary handrail bracket includes a handrail receiving unit (2) that supports or bears the handrail bar, upper and lower horizontal support units (3) that have a telescoping structure, and can be attached to the construction site (P) of the temporary scaffolding. It consists of a construction site installation unit (4),
The building site attachment unit includes upper and lower metal connectors (41) that are detachably connected to the building site (P) of the temporary scaffolding, and the upper connector has a groove-shaped cross section that is open upward. , L-shaped cross section or box-shaped metal fittings, and the lower connecting tool consists of a groove-shaped cross-sectional metal fitting opening downward, L-shaped cross section or box-shaped metal fittings,
The handrail receiving unit comprises upper and lower metal supports (21) to which the handrail bars are connected, and vertical metal pipes (22) that integrally interconnect the supports. , consisting of metal fittings with a groove-shaped cross section, an L-shaped cross section, or a box-shaped cross section that opens toward the temporary scaffolding,
The horizontal support unit has a substantially horizontally extending fixed tube (31) and a telescopic rod (32), the scaffolding end of the fixed tube is connected to the connector, and the total length of the telescopic rod is , the scaffolding-side portion of the telescopic rod extends into the intra-tube region of the fixed tube and extends from an opening (33) in the scaffold-side end of the fixed tube when the horizontal support unit is at its shortest. The extensible rod protrudes toward the scaffolding side, and the end of the extensible rod on the side of the handrail extends into the space in the groove or the inner space (25) of the support and is connected to the support, and the end of the railing on the side of the fixed pipe extends into the space (25). A temporary handrail (Claim 2) is provided, characterized in that the ends extend into the grooved or inner space of the support when the horizontal support unit is most shortened.

なお、本願の明細書及び特許請求の範囲において、「溝形」は、特に明記しない限り、コの字形、C形、U形又は凹形等を包含する形態を意味する用語として記載したものであり、また、上記支持具及び連結具の各「断面」は、伸縮ロッドの中心軸線を含む鉛直面において切断した支持具及び連結具の断面を意味する。 In the specification and claims of the present application, unless otherwise specified, the term "groove" is used as a term that means a form including a U-shape, a C-shape, a U-shape, a concave shape, and the like. There is, and each "cross section" of the support and the connecting device means a cross section of the supporting device and the connecting device cut along a vertical plane including the central axis of the telescopic rod.

好ましくは、上記伸縮ロッドの手摺桟側端部は、上記支持具に一体的に連結され、上記固定管の足場側端部は、上記連結具に一体的に連結され、上下の連結具同士、或いは、上下の固定管同士が、金属製の縦管(42)によって一体的に相互連結される。好適には、上記水平支持ユニットは、固定管に対する伸縮ロッドの相対位置を固定する金属ボルト等の締付け具(35)を有する。更に好ましくは、固定管の足場側端部の管壁外周面には、連結具の側壁部分が一体的に連結される。好適には、伸縮ロッドの手摺桟側の端部は、支持具の鉛直端壁に一体的に連結される。 Preferably, the end of the extensible rod on the side of the handrail is integrally connected to the support, and the end of the fixed pipe on the side of the scaffold is integrally connected to the connector, so that the upper and lower connectors, Alternatively, the upper and lower fixed tubes are integrally interconnected by a metal vertical tube (42). Preferably, the horizontal support unit has fasteners (35), such as metal bolts, to fix the relative position of the telescopic rod to the fixed tube. More preferably, the side wall portion of the connector is integrally connected to the outer peripheral surface of the pipe wall of the fixed pipe at the scaffold side end. Preferably, the balustrade-side end of the telescopic rod is integrally connected to the vertical end wall of the support.

本発明の上記構成によれば、伸縮ロッドの先端部(手摺桟側の端部)を手摺受けユニットによって相互連結することにより、上下の伸縮ロッドの中間部を相互連結又は連繋する連結管又は連繋管等を省略することができる。また、伸縮ロッドの足場側部分は、水平支持ユニットの最短縮時に固定管の足場側端部の開口から足場側に突出し、しかも、固定管の手摺桟側の端部は、水平支持ユニットの最短縮時に支持具の溝内空間又は内側空間に延入するので、手摺桟は、水平支持ユニットの最短縮時に大きく足場側に移動することができる。このような構造のブラケットによれば、可変設定可能なブラケットの張り出し寸法の寸法範囲を比較的大きく拡大することが可能となる。 According to the above configuration of the present invention, by interconnecting the ends of the extensible rods (ends on the side of the handrail) by the handrail receiving unit, the intermediate portions of the upper and lower extensible rods are interconnected or connected. A pipe or the like can be omitted. When the horizontal support unit is shortened, the scaffold side portion of the telescopic rod protrudes toward the scaffold side from the opening at the scaffold side end of the fixed pipe. Since it extends into the space inside the groove or the inner space of the support when shortened, the handrail bar can move greatly toward the scaffold when the horizontal support unit is shortened to the minimum. According to the bracket having such a structure, it is possible to relatively greatly expand the dimension range of the variably settable overhang dimension of the bracket.

本発明は更に、施工中の建築物又は構造物(A)の開口部又は開放領域に過渡的に手摺を設置するために仮設足場(S)から張り出して設置される仮設手摺用ブラケット(1)と、隣り合う仮設手摺用ブラケットの先端部の間に架設される手摺桟(7,8,9)とから構成される仮設手摺(10)において、
前記仮設手摺用ブラケットは、手摺桟を支持又は支承する手摺受けユニット(2)と、入れ子式伸縮構造を有する上下の水平支持ユニット(3)と、仮設足場の建地(P)に取付け可能な建地取付けユニット(4)とから構成され、
前記手摺受けユニットは、上下の前記水平支持ユニットの伸縮ロッドの足場側端部に夫々連結された上下の金属製支持具(21)と、該支持具を一体的に相互連結する金属製の縦管(22)と、前記支持具の上面に一体的且つ上向きに突設された円形断面の金属製短柱(11)と、該短柱が貫通し又は挿入され、前記支持具の上面および前記短柱の外周面によって支持又は支承された円筒形の楔緊結式短管(12)とを有し、
前記手摺桟(9)は、楔緊結式の係合手段(92,93)を両端部に有する金属製の管材(91)からなり、該管材の係合手段を前記短管の緊結部(16,17)に楔結合又は楔緊結することにより、隣り合う前記ブラケットの間に架設されることを特徴とする仮設手摺(請求項3)を提供する。
The present invention further provides a temporary handrail bracket (1) overhanging a temporary scaffolding (S) to temporarily install a handrail in an opening or open area of a building or structure (A) under construction. and handrail bars (7, 8, 9) constructed between the tips of adjacent temporary handrail brackets,
The temporary handrail bracket includes a handrail receiving unit (2) that supports or bears the handrail bar, upper and lower horizontal support units (3) that have a telescoping structure, and can be attached to the construction site (P) of the temporary scaffolding. It consists of a construction site installation unit (4),
The handrail receiving unit consists of upper and lower metal supports (21) respectively connected to the ends of the telescopic rods of the upper and lower horizontal support units on the scaffold side, and a metal vertical support that integrally interconnects the supports. A pipe (22), a metal stub (11) with a circular cross section integrally protruding upward from the upper surface of the support, and the short pillar penetrates or is inserted into the upper surface of the support and the a cylindrical wedge-clamped short pipe (12) supported or supported by the outer peripheral surface of the short pillar;
The handrail bar (9) is composed of a metal pipe member (91) having wedge binding type engagement means (92, 93) at both ends, and the engagement means of the pipe member is the binding portion (16) of the short pipe. , 17) to be wedged or wedged to provide a temporary handrail (Claim 3) that is erected between the adjacent brackets.

本発明の上記構成によれば、手摺桟は、その楔緊結式係合手段を短管の楔緊結式緊結部に楔結合することにより、隣り合うブラケットの先端部の間に架設される。楔結合により支持具に堅固又は強固に連結された手摺桟の強度、耐力、構造上の安定性等は、手摺材の係止部をブラケットのロックピンに係止するにすぎない従来の手摺桟の強度等に比べ、大きく増大又は向上する。また、上記構成の仮設手摺によれば、隣り合うブラケットの間隔(スパン)と手摺桟の全長とが適合することから、ブラケット間のスパン領域ごとに手摺桟を設置又は撤去すれば良いので、クランプによって手摺桟の単管を支持する構造の仮設手摺に比べ、手摺桟設置作業の作業効率が比較的大きく向上する。殊に、仮設手摺を楔緊結式足場に設置する場合には、汎用的な楔緊結式足場用の緊結部付布材、楔結合式布材等を手摺桟として好適に使用し得るので、部品又は部材の品種や、部材数又は部品点数の増大に伴う資材管理の煩雑化等を効果的に防止することができる。 According to the above configuration of the present invention, the handrail bar is constructed between the tips of the adjacent brackets by wedging the wedge-tying engagement means to the wedge-tying type fastening portion of the short pipe. The strength, resistance, structural stability, etc. of a handrail that is rigidly or firmly connected to a support by a wedge connection is superior to that of a conventional handrail that simply locks the locking portion of the handrail to the lock pin of the bracket. Compared to the strength, etc., it is greatly increased or improved. In addition, according to the temporary handrail with the above configuration, since the interval (span) between the adjacent brackets and the overall length of the handrail rail match, it is sufficient to install or remove the handrail rail for each span region between the brackets. Compared with temporary handrails having a structure that supports single pipes of handrail bars, the work efficiency of handrail bar installation work is relatively greatly improved. In particular, when a temporary handrail is installed on a wedge-tied scaffolding, general-purpose wedge-tied scaffolding cloth materials with binding portions, wedge-tied cloth materials, etc. can be suitably used as handrail crosspieces. Alternatively, it is possible to effectively prevent complication of material management due to an increase in the types of members, the number of members, or the number of parts.

好ましくは、上記手摺桟は、楔緊結式係合部を両端に有する楔緊結式足場用の楔緊結式布材からなり、上記楔緊結式短管は、支持具の上面および短柱の外周面によって回転可能に支持又は支承される。このような構成の仮設手摺では、手摺桟と短管とは、楔結合により堅固に一体化するが、短管は短柱に対して回転するので、平面視においてブラケットを全体的に仮設足場側に傾倒させて仮設手摺を仮設足場側に退避させる作業工程についても、比較的容易に実施することができる。上記短管の全長(高さ)は、35mm~100mmの範囲内の寸法に好ましく設定し得る。好適には、上記手摺受けユニットは、上記短柱を挿通可能又は挿入可能な円筒形の鞘管(13)を更に有し、この鞘管は、上記短管の上端面及び上記短柱の外周面によって支持又は支承される。鞘管は、直交クランプ又は自在クランプ等の仮設工事用クランプ(18)を緊結可能な外周面を有し、手摺桟を構成する単管をこのクランプによって鞘管に一体的に連結することができる。鞘管の全長(高さ)は、40mm~100mmの範囲内の寸法に好ましく設定し得る。このような鞘管を備えた仮設手摺用ブラケットによれば、単管足場組立用の単管を手摺桟として使用することも可能となるので、仮設手摺を単管足場に設置する場合においても、部品又は部材の品種や、部材数又は部品点数の増大等を回避し得る。所望により、鞘管を楔緊結用の短管の上端面および短柱の外周面によって回転可能に支持又は支承しても良い。 Preferably, the handrail bar is made of a wedge-tying cloth material for a wedge-tying scaffolding having wedge-tying engaging portions at both ends, and the wedge-tying short pipe is provided on the upper surface of the support and the outer peripheral surface of the short pillar. is rotatably supported or supported by In the temporary handrail with such a structure, the handrail bar and the short pipe are firmly integrated by the wedge connection, but since the short pipe rotates with respect to the short pillar, the bracket is positioned on the side of the temporary scaffold as a whole when viewed from above. The work process of tilting the temporary handrail to the side of the temporary scaffold can also be carried out relatively easily. The overall length (height) of the short tube can be preferably set within the range of 35 mm to 100 mm. Preferably, the handrail receiving unit further has a cylindrical sheath tube (13) through which the short pillar can be inserted or inserted, and the sheath tube extends from the upper end surface of the short tube and the outer circumference of the short pillar. Supported or supported by a surface. The sheath pipe has an outer peripheral surface that can be tightened with a temporary construction clamp (18) such as an orthogonal clamp or a universal clamp, and the single pipe constituting the handrail can be integrally connected to the sheath pipe by this clamp. . The overall length (height) of the sheath tube can be preferably set within the range of 40 mm to 100 mm. According to a temporary handrail bracket having such a sheath pipe, it is possible to use a single pipe for assembling a single pipe scaffold as a handrail crosspiece. It is possible to avoid an increase in the types of parts or members, the number of members or the number of parts, and the like. If desired, the sleeve tube may be rotatably supported or supported by the upper end surface of the short tube for wedging and the outer peripheral surface of the short column.

他の観点より、本発明は、 上記構成の仮設手摺を前記建築物又は構造物(A)の開口部又は開放領域に設置する仮設手摺の設置方法において、
前記水平支持ユニット(3)の伸縮構造による該水平支持ユニットの全長(L1)の短縮、及び/又は、前記建地(P)に対する前記建地取付けユニット(4)の過渡的な緊結力解放状態又は係合離脱状態を利用した前記仮設手摺用ブラケットの張り出し方向の転向又は変更により、前記手摺桟(7,8,9)を足場側に退避させ、前記開口部又は開放領域に対する本設手摺の設置(新設又は復旧)を可能にすることを特徴とする仮設手摺の設置方法を提供する。
From another point of view, the present invention provides a temporary handrail installation method for installing a temporary handrail having the above configuration in an opening or an open area of the building or structure (A),
Shortening of the overall length (L1) of the horizontal support unit (3) due to the expansion and contraction structure of the horizontal support unit (3) and/or a transitional binding force releasing state of the building site attachment unit (4) with respect to the building site (P) Alternatively, by turning or changing the overhanging direction of the temporary handrail bracket using the disengaged state, the handrail bars (7, 8, 9) are retracted toward the scaffold, and the permanent handrail relative to the opening or open area is removed. To provide a temporary handrail installation method characterized by enabling installation (new installation or restoration).

更に他の観点より、本発明は、上記短柱、短管及び鞘管を備えた仮設手摺を前記建築物又は構造物(A)の開口部又は開放領域に設置する仮設手摺の設置方法において、
楔緊結式足場に該仮設手摺を設置するとき、該楔緊結式足場の支柱を相互連結する楔緊結式又は楔結合式の布材と同じ布材を前記手摺桟(9)として前記仮設手摺用ブラケットの間に架設し、
単管足場に前記仮設手摺を設置するとき、前記鞘管に取付けられた前記クランプ(18)によって単管を前記手摺桟(8)として前記仮設手摺用ブラケットの間に架設することを特徴とする仮設手摺の設置方法を提供する。
From still another aspect, the present invention provides a temporary handrail installation method for installing a temporary handrail having the short pillars, short pipes and sheath pipes in an opening or open area of the building or structure (A),
When the temporary handrail is installed on a wedge-tied scaffold, the same cloth material as the wedge-tied or wedge-tied type cloth material that interconnects the posts of the wedge-tied scaffold is used as the handrail bar (9) for the temporary handrail. Installed between brackets,
When the temporary handrail is installed on a single pipe scaffold, the clamp (18) attached to the sheath pipe is used to construct the single pipe as the handrail crosspiece (8) between the temporary handrail brackets. To provide a method for installing a temporary handrail.

好ましくは、上記手摺桟(8,9)は、上記水平支持ユニットの伸縮構造による該水平支持ユニットの全長の短縮、及び/又は、前記建地(P)に対する前記建地取付けユニットの過渡的な緊結力解放状態又は係合離脱状態を利用した仮設手摺用ブラケットの張り出し方向の転向又は変更により、足場側に退避し、しかる後、本設手摺が上記開口部又は開放領域に設置される。 Preferably, the handrail bars (8, 9) shorten the overall length of the horizontal support unit due to the expansion and contraction structure of the horizontal support unit and/or the transitional movement of the building site attachment unit to the building site (P). By turning or changing the projecting direction of the temporary handrail bracket using the binding force released state or disengaged state, the temporary handrail bracket is retracted to the scaffold side, and then the permanent handrail is installed in the opening or open area.

好適には、上記仮設手摺用ブラケットを上記仮設足場(S)の腕木方向又は梁間方向に配向した仮設手摺の設置状態において、水平支持ユニットの最伸長時における仮設手摺の張り出し寸法XLmaxと、該水平支持ユニットの最短縮時における仮設手摺の張り出し寸法XLminとの比として定義される寸法比XLmin/XLmaxが、0.55~0.7の範囲内の値、更に好適には、0.65以下の値に設定される。好ましくは、水平支持ユニットの最伸長時における張り出し寸法XLmaxは、40cm~60cmの範囲内の値、更に好ましくは、45~55cmの範囲内の値に設定され、水平支持ユニットの最短縮時における仮設手摺の張り出し寸法XLminは、22cm~40cmの範囲内の値、更に好ましくは、25cm~35cmの範囲内の値に設定される。 Preferably, in the installation state of the temporary handrail in which the bracket for the temporary handrail is oriented in the direction of the arm of the temporary scaffold (S) or the direction between the beams, the overhang dimension XLmax of the temporary handrail when the horizontal support unit is fully extended and the horizontal The dimensional ratio XLmin/XLmax, which is defined as the ratio of the overhang dimension XLmin of the temporary handrail when the support unit is at its shortest, is a value within the range of 0.55 to 0.7, more preferably 0.65 or less. set to the value Preferably, the overhang dimension XLmax when the horizontal support unit is fully extended is set to a value within the range of 40 cm to 60 cm, and more preferably to a value within the range of 45 to 55 cm. The overhang dimension XLmin of the handrail is set to a value within the range of 22 cm to 40 cm, more preferably to a value within the range of 25 cm to 35 cm.

なお、市場に流通する汎用の仮設足場用資材(単管、楔緊結式布材等)を上記手摺桟として適宜使用しても良く、このような観点より、本発明を仮設手摺用ブラケットの発明として把握しても良い(請求項16~18)。 General-purpose temporary scaffolding materials (single pipes, wedge binding type cloth materials, etc.) available in the market may be used as appropriate for the above-mentioned handrail bars. (claims 16 to 18).

手摺桟に作用する外部荷重及び手摺材の自重が支持具及び縦管を一体化した手摺受けユニットを介して上下の伸縮ロッドに伝達するように構成された本発明の仮設手摺(請求項1)及びその設置方法によれば、手摺桟に作用する外部荷重及び手摺材の自重を仮設手摺用ブラケットの上下の水平支持部材に実質的に均等に分散し、或いは、上下の水平支持部材の剛性に相応して適当に分散させることができる。 The temporary handrail of the present invention, which is constructed so that the external load acting on the handrail bar and the self weight of the handrail material are transmitted to the upper and lower extensible rods through the handrail receiving unit in which the support members and the vertical pipe are integrated (claim 1) and its installation method, the external load acting on the handrail bar and the self weight of the handrail material are distributed substantially evenly to the upper and lower horizontal support members of the temporary handrail bracket, or the rigidity of the upper and lower horizontal support members is adjusted. It can be appropriately distributed accordingly.

伸縮ロッドの先端部を手摺受けユニットによって相互連結して、上下の伸縮ロッドの中間部を相互連結又は連繋する連結管又は連繋管等を省略するとともに、水平支持ユニットの最短縮時に伸縮ロッドの足場側部分を固定管の足場側端部の開口から足場側に突出させ、水平支持ユニットの最短縮時に固定管の手摺桟側の端部を支持具の溝内空間又は内側空間に延入させるように構成された本発明の仮設手摺(請求項2)及びその設置方法によれば、可変設定可能な仮設手摺用ブラケットの張り出し寸法の範囲を拡大することができる。 The ends of the telescopic rods are interconnected by the handrail receiving unit, and the connecting pipes or connecting pipes for interconnecting or linking the intermediate portions of the upper and lower telescopic rods are omitted, and the scaffolding of the telescopic rods when the horizontal support unit is shortened to the minimum. The side portion protrudes toward the scaffold from the opening of the end of the fixed pipe on the side of the scaffold, and when the horizontal support unit is shortened to the minimum, the end of the fixed pipe on the side of the handrail is extended into the space inside the groove of the support or the space inside the support. According to the temporary handrail (claim 2) of the present invention and the installation method thereof, the range of overhang dimension of the temporary handrail bracket that can be variably set can be expanded.

手摺受けユニットの支持具の上面に一体的且つ上向きに突設された短柱と、短柱及び支持具上面によって支持又は支承された楔緊結式短管とを設け、手摺桟の楔緊結式係合手段を短管の楔緊結式緊結部に楔結合するように構成された本発明の仮設手摺(請求項3)及びその設置方法によれば、手摺桟の強度又は耐力を向上するとともに、殊に仮設手摺を楔緊結式足場に設置する場合に、仮設手摺設置作業の作業効率を向上するとともに、資材管理を簡素化することができる。 A short pillar projecting upward integrally with the upper surface of the support of the handrail receiving unit and a wedge connection type short pipe supported or supported by the short pillar and the upper surface of the support are provided, and the wedge connection type engagement of the handrail bar is provided. According to the temporary handrail of the present invention (Claim 3), which is configured to wedge-connect the connecting means to the wedge-connecting type tightening portion of the short pipe, and the installation method thereof, the strength or proof stress of the handrail bar is improved, and in particular, When a temporary handrail is installed on a wedge-tied scaffold, the work efficiency of the temporary handrail installation work can be improved and material management can be simplified.

図1は、本発明に係る仮設手摺の第1実施例を示す手摺支持ブラケットの側面図、正面図及び底面図である。FIG. 1 is a side view, a front view and a bottom view of a handrail support bracket showing a first embodiment of a temporary handrail according to the present invention. 図2は、手摺桟を手摺支持ブラケットによって支承又は支持した状態を示す仮設手摺の部分正面図及び部分平面図である。FIG. 2 is a partial front view and a partial plan view of the temporary handrail showing a state in which the handrail bars are supported or supported by the handrail support brackets. 図3は、手摺支持ブラケットの分解側面図である。FIG. 3 is an exploded side view of the handrail support bracket. 図4は、仮設手摺を仮設足場から施工中の建築物の側に張り出して建築物の屋外開放又は開口領域に設置した状態を示す仮設手摺の側面図である。FIG. 4 is a side view of a temporary handrail showing a state in which the temporary handrail is projected from the temporary scaffolding to the side of the building under construction and installed in an open area or an open area of the building. 図5は、図4に示す仮設手摺の部分平面図である。5 is a partial plan view of the temporary handrail shown in FIG. 4. FIG. 図6は、手摺支持ブラケットの張り出し寸法を短縮して仮設手摺を仮設足場側に退避させた状態を示す仮設手摺の側面図である。FIG. 6 is a side view of the temporary handrail showing a state in which the handrail support bracket is shortened and the temporary handrail is retracted toward the temporary scaffold. 図7は、図6に示す仮設手摺に関し、他の退避手段として、手摺支持ブラケットの取付け方向の変更によって足場側に退避させる態様を示す仮設手摺の部分平面図である。FIG. 7 is a partial plan view of the temporary handrail shown in FIG. 6, showing a mode of retracting to the scaffolding side by changing the mounting direction of the handrail support bracket as another retracting means. 図8は、本発明に係る仮設手摺の第2実施例を示す手摺支持ブラケットの側面図、正面図及び平面図である。FIG. 8 is a side view, a front view and a plan view of a handrail support bracket showing a second embodiment of a temporary handrail according to the present invention. 図9は、図8に示す手摺支持ブラケットの斜視図である。9 is a perspective view of the handrail support bracket shown in FIG. 8. FIG. 図10は、図8に示す手摺支持ブラケットの分解側面図である。10 is an exploded side view of the handrail support bracket shown in FIG. 8. FIG. 図11は、全長を短縮した状態で示す手摺支持ブラケットの側面図及び平面図である。FIG. 11 is a side view and a plan view of the handrail support bracket shown in a shortened state. 図12は、楔緊結式の手摺桟を手摺支持ブラケットの手摺受けユニットに連結する態様を示す仮設手摺の部分拡大平面図及び部分拡大正面図である。FIG. 12 is a partially enlarged plan view and a partially enlarged front view of the temporary handrail, showing a manner in which the wedge tie-type handrail bar is connected to the handrail receiving unit of the handrail support bracket. 図13は、楔緊結式の手摺桟を手摺支持ブラケットの手摺受けユニットに連結した状態を示す仮設手摺の部分平面図及び部分正面図である。FIG. 13 is a partial plan view and a partial front view of a temporary handrail showing a state in which a wedged-type handrail bar is connected to a handrail receiving unit of a handrail support bracket. 図14は、図13に示す仮設手摺を楔緊結式の仮設足場から施工中の建築物のバルコニーに張り出して設置した状態を示す仮設足場の側面図である。FIG. 14 is a side view of a temporary scaffolding showing a state in which the temporary handrail shown in FIG. 図15は、図14に示す仮設手摺を手摺支持ブラケットの張り出し寸法の短縮により仮設足場側に退避させた後、本設手摺を建築物のバルコニーに設置した状態を示す仮設足場の側面図である。15 is a side view of the temporary scaffolding showing a state in which the permanent handrail is installed on the balcony of the building after the temporary handrail shown in FIG. . 図16は、図14に示す仮設手摺を手摺支持ブラケットの取付け方向の変更によって足場側に退避させる態様を示す仮設足場の部分平面図である。FIG. 16 is a partial plan view of the temporary scaffold showing how the temporary handrail shown in FIG. 14 is retracted toward the scaffold by changing the mounting direction of the handrail support bracket. 図17は、単管からなる手摺桟を手摺支持ブラケットの手摺受けユニットに取付けた状態を示す仮設手摺の側面図である。FIG. 17 is a side view of a temporary handrail showing a state in which handrail bars made of single pipes are attached to handrail receiving units of handrail support brackets. 図17に示す仮設手摺の部分平面図及び部分正面図である。18 is a partial plan view and a partial front view of the temporary handrail shown in FIG. 17; FIG. 図19は、図13に示す仮設手摺を単管足場から施工中の建築物のバルコニーに張り出して設置した状態を示す仮設足場の側面図である。FIG. 19 is a side view of the temporary scaffolding showing a state in which the temporary handrail shown in FIG. 13 is installed over the balcony of the building under construction from the single pipe scaffolding. 図20は、図19に示す仮設手摺を手摺支持ブラケットの張り出し寸法の短縮により仮設足場側に退避させた状態を示す仮設足場の部分側面図である。20 is a partial side view of the temporary scaffold showing a state in which the temporary handrail shown in FIG. 19 is retracted toward the temporary scaffold by shortening the overhang dimension of the handrail support bracket. 図21は、図13に示す仮設手摺を枠組足場から施工中の建築物のバルコニーに張り出して設置した状態を示す仮設足場の部分側面図である。FIG. 21 is a partial side view of the temporary scaffolding showing a state in which the temporary handrail shown in FIG. 13 is installed over the balcony of the building under construction from the framed scaffolding. 図22は、図21に示す仮設手摺を手摺支持ブラケットの張り出し寸法の短縮により仮設足場側に退避させた状態を示す仮設足場の部分側面図である。22 is a partial side view of the temporary scaffold showing a state in which the temporary handrail shown in FIG. 21 is retracted toward the temporary scaffold by shortening the overhang dimension of the handrail support bracket. 図23(A)は、従来の仮設手摺を施工中の建築物のバルコニーに設置した状態を示す仮設足場の部分側面図であり、図23(B)は、従来の仮設手摺を構成する手摺受の構成を示す手摺受の側面図である。Fig. 23(A) is a partial side view of a temporary scaffold showing a state in which a conventional temporary handrail is installed on a balcony of a building under construction, and Fig. 23(B) is a handrail receiver constituting a conventional temporary handrail. It is a side view of a handrail receiver showing the configuration of. 図24は、建設工事の外装工事において本設の手摺を建築物のバルコニーに設置した状態を示す仮設足場の部分側面図である。FIG. 24 is a partial side view of a temporary scaffolding showing a state in which permanent handrails are installed on a balcony of a building in exterior work of construction work.

以下、添付図面を参照して、本発明の好適な実施例について詳細に説明する。 Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

図1は、本発明に係る仮設手摺の第1実施例を示す側面図、正面図及び底面図である。図1には、本例の仮設手摺を構成する手摺支持ブラケットの構成が示されている。図2は、手摺桟を手摺支持ブラケットによって支承又は支持した状態を示す仮設手摺の部分立面図及び部分平面図である。図3は、手摺支持ブラケットの分解側面図である。図1(A)~図1(C)、図2(A)及び図2(B)には、ピン形係止具を上方に向け、係止部付き手摺材を手摺桟として支承するように仮設足場に設置される第1位置の手摺支持ブラケットが示されており、図1(D)及び図2(C)には、上下反転してクランプを上方に向け、単管をクランプによって手摺桟として支持するように仮設足場に設置される第2位置の手摺支持ブラケットが示されている。図4~図7は、手摺支持ブラケット及び手摺桟から構成される仮設手摺を仮設足場から建築工事中又は補修・改修工事中(即ち、施工中)の建築物の側に張り出して設置した状態を示す仮設手摺の側面図及び部分平面図である。図4及び図5には、施工中の建築物のベランダに仮設手摺を形成した状態が示されており、図6には、手摺支持ブラケットの張り出し長を短縮して仮設手摺を仮設足場側に退避させ、本設手摺(仮想線で示す)を建築物AのベランダBに設置した建築物Aの施工完了直前(仮設足場解体前)の状態が示されている。図7(A)には、他の仮設手摺退避手段として、手摺桟の位置を仮設足場側に接近した位置に変更すべく、仮設足場の建地に対して手摺支持ブラケットを平面視傾斜方向に設置し直した状態が示されており、図7(B)には、手摺支持ブラケットを平面視傾斜方向に設置し直すとともに、手摺支持ブラケットの張り出し長を短縮した状態が示されている。 FIG. 1 is a side view, a front view and a bottom view showing a first embodiment of a temporary handrail according to the present invention. FIG. 1 shows the construction of a handrail support bracket that constitutes the temporary handrail of this example. FIG. 2 is a partial elevation view and a partial plan view of a temporary handrail showing a state in which the handrail bars are supported or supported by handrail support brackets. FIG. 3 is an exploded side view of the handrail support bracket. In FIGS. 1(A) to 1(C), 2(A) and 2(B), the pin-shaped locking device is directed upward, and the handrail material with the locking portion is supported as a handrail crosspiece. 1(D) and 2(C) show the handrail support bracket in the first position installed on the temporary scaffolding, and shown in FIGS. A handrail support bracket in a second position is shown installed on the temporary scaffold to support as a. Figures 4 to 7 show a state in which a temporary handrail consisting of a handrail support bracket and a handrail bar is protruding from the temporary scaffolding to the side of the building during construction or repair/renovation work (that is, under construction). It is the side view and partial top view of a temporary handrail shown. Figures 4 and 5 show a state in which a temporary handrail is formed on the veranda of a building under construction. The state immediately before the completion of the construction of the building A (before dismantling the temporary scaffolding), in which the permanent handrail (indicated by the phantom line) is installed on the veranda B of the building A, is shown. In FIG. 7(A), as another temporary handrail retracting means, the handrail support bracket is inclined in plan view with respect to the construction site of the temporary scaffold in order to change the position of the handrail bar to a position closer to the temporary scaffold. The re-installed state is shown, and FIG. 7B shows a state where the handrail support bracket is re-installed in the inclined direction in plan view and the overhang length of the handrail support bracket is shortened.

図1に示す如く、仮設手摺を構成する手摺支持ブラケット1(以下、「ブラケット1」という。)は、上下の手摺桟7、8(図2)を支持又は支承する手摺受けユニット2と、手摺受けユニット2に連結された上下一対の水平支持ユニット3と、水平支持ユニット3の基端部(足場側端部)に一体的に連結された建地取付けユニット4とから構成される。 As shown in FIG. 1, a handrail support bracket 1 (hereinafter referred to as "bracket 1") constituting a temporary handrail includes a handrail receiving unit 2 for supporting or supporting upper and lower handrail bars 7 and 8 (FIG. 2), and a handrail. It consists of a pair of upper and lower horizontal support units 3 connected to a receiving unit 2, and a building site attachment unit 4 integrally connected to the base end (scaffold side end) of the horizontal support unit 3. As shown in FIG.

手摺受けユニット2は、手摺桟7、8を支持又は支承する上下一対の金属製(例えば、鋼製)支持具21と、上下の支持具21を一体的に相互連結する金属製(例えば、鋼製)の縦管22とを備える。各支持具21は、仮設足場の側に向かって開口した断面溝形の金属製部品(例えば、鋼製部品)である。グラビティロック又はロックピン等の名称で知られたスプリング式又は先折れ式のピン形係止具23が、ブラケット1の第1位置(図1(A)~図1(C))において各支持具21の上面から鉛直に突出するように各支持具21に一体的に立設されるとともに、単クランプ28が、第2位置(図1(D))において各支持具21の上面に位置するように各支持具21に取付けられる。縦管22は、単クランプ28との物理的干渉を回避するように屈曲する。縦管22は、例えば、外径約22mmの鋼管の曲げ加工品からなる。縦管22は、支持具21の底壁下面又は頂壁上面に対し、溶接等の固着手段によって一体的に連結され、上下の支持具21及び縦管22は互いに一体化する。各係止具23には、ブラケット1の第1位置(図2(A)及び図2(B))において、係止部付き手摺桟7の係止部71が係止する。手摺桟7は、係止部71を両端部に形成した金属製(例えば、鋼製)管材の加工品からなり、管部分は、25~35mm程度の外径を有する。手摺桟7は、係止部71に穿設された係止孔に係止具23を挿通することにより、係止具23の係止機構によって支持具21上に係留される。他方、各支持具21は、ブラケット1の第2位置(図2(C))において、単管を単クランプ28によって実質的に水平且つ一体的に支持することができる。締付け力(クランプ力)下に各単クランプ28に緊結された単管は、隣り合うブラケット1の支持具21によって手摺桟8としてブラケット1の間に水平に架設される。後述する如く、ブラケット1は、仮設足場Sの腕木方向又は梁間方向に配向され、各建地P(仮想線で示す)から施工中の建築物Aの側に張り出して設置される。手摺桟7、8は、隣り合うブラケット1の先端部の間に架設され、本設手摺の設置前又は復旧前の期間(即ち、建設工事の工期中)、建築物Aの開口部又は開放領域において過渡的な安全手摺として機能する。 The handrail receiving unit 2 includes a pair of upper and lower metal (e.g., steel) support members 21 that support or support the handrail bars 7 and 8, and a metal (e.g., steel) support member that integrally interconnects the upper and lower support members 21. (manufactured) and a vertical tube 22. Each support 21 is a metal component (for example, a steel component) having a channel-shaped cross-section and opening toward the side of the temporary scaffold. A spring-loaded or tipped pin-type locking device 23, known as a gravity lock or locking pin, etc., is attached to each support in a first position (FIGS. 1A-1C) of the bracket 1. A single clamp 28 is integrally erected on each support 21 so as to protrude vertically from the upper surface of the support 21, and a single clamp 28 is positioned on the upper surface of each support 21 at the second position (FIG. 1(D)). to each support 21. Longitudinal tube 22 bends to avoid physical interference with single clamp 28 . The vertical pipe 22 is made of, for example, a bent steel pipe having an outer diameter of about 22 mm. The vertical pipe 22 is integrally connected to the lower surface of the bottom wall or the upper surface of the top wall of the support 21 by fixing means such as welding, and the upper and lower supports 21 and vertical pipes 22 are integrated with each other. At the first position (FIGS. 2(A) and 2(B)) of the bracket 1, the engaging portion 71 of the handrail crosspiece 7 with engaging portion is engaged with each engaging member 23. As shown in FIG. The handrail bar 7 is made of a metal (for example, steel) pipe processed product with locking portions 71 formed at both ends, and the pipe portion has an outer diameter of about 25 to 35 mm. The handrail bar 7 is anchored on the support 21 by the locking mechanism of the locking tool 23 by inserting the locking tool 23 into the locking hole formed in the locking part 71 . On the other hand, each support 21 can substantially horizontally and integrally support a single tube with a single clamp 28 in the second position (FIG. 2(C)) of the bracket 1 . A single pipe tightened to each single clamp 28 under a tightening force (clamping force) is horizontally constructed between the brackets 1 as a handrail crosspiece 8 by the supporting members 21 of the adjacent brackets 1 . As will be described later, the brackets 1 are oriented in the direction of the arms of the temporary scaffolding S or in the direction between the beams, and are installed so as to protrude from each building site P (indicated by phantom lines) toward the building A under construction. The handrail bars 7 and 8 are constructed between the tips of the adjacent brackets 1, and during the period before the permanent handrail is installed or restored (that is, during the construction period), the opening or open area of the building A is used. Acts as a transitional safety railing in

手摺受けユニット2の自重及び手摺受けユニット2に作用する荷重(外力)は、水平支持ユニット3及び建地取付けユニット4を介して仮設足場Sの建地Pに伝達し、仮設足場Sによって支持される。各水平支持ユニット3は、仮設足場Sの建地Pに対するブラケット1の張り出し長XL(図1(A))を調節するための入れ子式伸縮構造を有する。なお、張り出し長XLは、ブラケット1を構成する支持具21の外端部(外端面の最遠部)と建地Pの中心軸線CLとの水平離間距離(腕木方向又は梁間方向の距離)である。 The own weight of the handrail receiving unit 2 and the load (external force) acting on the handrail receiving unit 2 are transmitted to the construction site P of the temporary scaffolding S via the horizontal support unit 3 and the construction site attachment unit 4, and are supported by the temporary scaffolding S. be. Each horizontal support unit 3 has a telescoping structure for adjusting the overhang length XL (FIG. 1(A)) of the bracket 1 with respect to the building site P of the temporary scaffold S. The overhang length XL is the horizontal separation distance (distance in the direction of the bracket or the direction between the beams) between the outer end portion (the farthest portion of the outer end surface) of the support 21 that constitutes the bracket 1 and the center axis CL of the building site P. be.

水平支持ユニット3は、実質的に水平に延びる固定管31及び伸縮ロッド32を有する。伸縮ロッド32の手摺桟側の端部(先端部)は、支持具21の溝内空間25内に延入し、支持具21の鉛直端壁26に一体的に連結される。固定管31は、両端が開口した円形断面の金属管(例えば、鋼管)からなる。伸縮ロッド32は、断面が概ね三日月形、半円形、ひょうたん形、I形又はH形等に変形した金属製(例えば、鋼製)の異形中空部材であり、伸縮ロッド32の断面最大寸法(高さ寸法)は、固定管31の内径よりも小さい値に設定される。例えば、固定管31は、外径34mmの鋼管(内径約2~4mm)からなり、伸縮ロッド32は、外径20~28mm程度の鋼管をプレス加工した金属プレス成形品からなる。伸縮ロッド32の基端部(足場側端部)は、固定管31の先端側円形開口34から固定管31の管内領域に延入する。水平支持ユニット3の全長L1を短縮すべく、固定管31内に伸縮ロッド32をスライド式に引き込むと、固定管31の先端部が支持具21の溝内空間25内に相対移動して支持具21の鉛直端壁26に当接又は衝合する。伸縮ロッド32の全長L3は、固定管31の全長L2よりも大きく、このため、固定管31の先端が鉛直端壁26に当接又は衝合するまで伸縮ロッド32を固定管31内に完全に引き込むと、伸縮ロッド32の基端部は、固定管31の足場側(基端側)円形開口33から足場側に突出する。この状態が図6に示されており、ブラケット1の張り出し長XLは、大きく短縮する(図6の記載については後述する。)。水平支持ユニット3は、固定管31に対する伸縮ロッド32の相対位置を固定する金属ボルト等の締付け具35を更に有する。締付け具35を締付けることにより、締付け具35の先端部と伸縮ロッド32とを任意の伸縮位置において一体的に係合せしめ、これにより、固定管31に対する伸縮ロッド32の伸長寸法ΔL(=L1-L2)を固定し、水平支持ユニット3の全長L1を所望の如く設定することができる。例えば、張り出し長XLは、最大約500mm、最小約300mmの範囲内の任意の値に可変設定することができる。本例において、水平支持ユニット3の最伸長時における仮設手摺10の張り出し寸法XLmax(約500mm)と、水平支持ユニット3の最短縮時における仮設手摺10の張り出し寸法XLmin(約300mm)との比、即ち、寸法比XLmin/XLmaxは、約0.6に設定されている。 The horizontal support unit 3 has a fixed tube 31 and a telescopic rod 32 extending substantially horizontally. The end (tip) of the telescopic rod 32 on the side of the handrail extends into the space 25 in the groove of the support 21 and is integrally connected to the vertical end wall 26 of the support 21 . The fixed pipe 31 is made of a metal pipe (for example, a steel pipe) having a circular cross section with both ends open. The telescopic rod 32 is a deformed hollow member made of metal (for example, made of steel) whose cross section is deformed into a crescent shape, a semicircular shape, a gourd shape, an I shape, an H shape, or the like. length) is set to a value smaller than the inner diameter of the fixed tube 31 . For example, the fixed tube 31 is made of a steel tube with an outer diameter of 34 mm (with an inner diameter of about 2 to 4 mm), and the telescopic rod 32 is made of a press-molded metal product obtained by pressing a steel tube with an outer diameter of about 20 to 28 mm. The proximal end (scaffold side end) of the telescopic rod 32 extends from the distal circular opening 34 of the fixed tube 31 into the intra-pipe region of the fixed tube 31 . When the telescopic rod 32 is slidably pulled into the fixed tube 31 in order to shorten the overall length L1 of the horizontal support unit 3, the distal end of the fixed tube 31 relatively moves into the space 25 in the groove of the support 21, thereby moving the support. abuts or abuts the vertical end wall 26 of 21; The total length L3 of the telescopic rod 32 is greater than the total length L2 of the fixed tube 31, so that the telescopic rod 32 can be fully inserted into the fixed tube 31 until the tip of the fixed tube 31 abuts or abuts the vertical end wall 26. When retracted, the proximal end portion of the telescopic rod 32 protrudes from the scaffold side (base end side) circular opening 33 of the fixed tube 31 toward the scaffold side. This state is shown in FIG. 6, and the overhang length XL of the bracket 1 is greatly shortened (description of FIG. 6 will be described later). The horizontal support unit 3 further comprises fasteners 35 such as metal bolts that fix the relative position of the telescopic rod 32 to the fixed tube 31 . By tightening the fastener 35, the distal end portion of the fastener 35 and the telescopic rod 32 are integrally engaged at an arbitrary telescopic position, whereby the extension dimension ΔL (=L1- L2) can be fixed and the total length L1 of the horizontal support unit 3 can be set as desired. For example, the overhang length XL can be variably set to any value within the range of about 500 mm maximum and about 300 mm minimum. In this example, the ratio of the extension dimension XLmax (approximately 500 mm) of the temporary handrail 10 when the horizontal support unit 3 is fully extended to the extension dimension XLmin (approximately 300 mm) of the temporary handrail 10 when the horizontal support unit 3 is minimized, That is, the dimensional ratio XLmin/XLmax is set to approximately 0.6.

建地取付けユニット4は、上下一対の金属製(例えば、鋼製)連結具41を有する。各連結具41には、単クランプ5が取付けられる。単クランプ5は、仮設足場の建地Pをクランプし、締付け力下に建地Pに一体的且つ取外し可能に緊結される。建地取付けユニット4は、上下の連結具41を一体的に相互連結する金属製(例えば、鋼製)の縦管42を更に有する。上側の連結具41は、鉛直上方に向かって開口した溝形断面を有し、下側の連結具41は、鉛直下方に向かって開口した溝形断面を有する。連結具41の手摺桟側の側壁上縁又は側壁下縁が、固定管31の基端部の上側半部又は下側半部の外周面に対し、溶接等の固着手段によって一体的に連接し、連結具41及び固定管31は一体的に連結される。縦管42は、例えば、外径約22mmの鋼管を所定長に切断してなる直管である。縦管42は、連結具41の底壁下面又は頂壁上面に対し、溶接等の固着手段によって一体的に連結され、上下の連結具41及び固定管31は互いに一体化する。 The construction site attachment unit 4 has a pair of upper and lower metal (for example, steel) couplings 41 . A single clamp 5 is attached to each connector 41 . A single clamp 5 clamps the building site P of the temporary scaffolding and is integrally and detachably fastened to the building site P under a clamping force. The building-floor mounting unit 4 further comprises a metal (eg, steel) vertical tube 42 integrally interconnecting the upper and lower connectors 41 . The upper connector 41 has a channel-shaped cross section that opens vertically upward, and the lower connector 41 has a channel-shaped cross section that opens vertically downward. The side wall upper edge or side wall lower edge of the connecting member 41 on the side of the handrail is integrally connected to the outer peripheral surface of the upper half or lower half of the base end of the fixed pipe 31 by fixing means such as welding. , the connector 41 and the fixed tube 31 are integrally connected. The vertical pipe 42 is, for example, a straight pipe made by cutting a steel pipe having an outer diameter of about 22 mm to a predetermined length. The vertical pipe 42 is integrally connected to the lower surface of the bottom wall or the upper surface of the top wall of the connector 41 by fixing means such as welding, and the upper and lower connectors 41 and the fixed pipe 31 are integrated with each other.

図4~図7には、ブラケット1及び手摺桟7から構成される仮設手摺10を仮設足場Sの建地Pから施工中の建築物AのベランダBの側に張り出して設置した状態が示されている。図4に示す仮設足場Sは、鋼管等の加工品からなる支柱及び横架材等を楔緊結式連結構造により一体的に組付け、鋼製踏板等の仮設床材(図示せず)を横架材等によって支持する構造を有する楔緊結式の仮設足場である。 4 to 7 show a state in which a temporary handrail 10 composed of a bracket 1 and a handrail bar 7 is installed so as to protrude from the construction site P of the temporary scaffolding S to the veranda B side of the building A under construction. ing. The temporary scaffolding S shown in Fig. 4 is constructed by integrally assembling pillars, horizontal members, etc. made of processed products such as steel pipes, etc. by a wedge connection type connection structure, and installing temporary floor materials (not shown) such as steel treads. It is a wedge binding type temporary scaffold that has a structure supported by cross members.

図4には、楔緊結式フランジ部Qを等間隔に備えた金属製(鋼製)支柱からなる建地Pと、仮設足場Sの先行手摺Uとが図示されている。図4において、ブラケット1は、係止具23を上方に向けた第1位置の状態で平面視腕木方向又は梁間方向に配向される。ブラケット1は、建地取付けユニット4の単クランプ5を建地Pに緊結することにより、建地PからベランドBの側に突設される。係止部付き手摺桟7の係止部71が係止具23に係止され、支持具21上に係留される。手摺桟7は、図2及び図5に示す如く、隣り合うブラケット1の支持具21の間に水平に架設される。ブラケット1及び手摺桟7より構成される仮設手摺10は、本設手摺の新設又は復旧までの期間、建築物Aの開口部又は開放領域において過渡的な安全手摺として機能する。 FIG. 4 shows a construction site P consisting of metal (steel) pillars having wedge fastening type flange portions Q at regular intervals, and a leading handrail U of a temporary scaffolding S. As shown in FIG. In FIG. 4, the bracket 1 is oriented in the direction of the bracket or the direction between the beams in a plan view in the first position with the locking tool 23 directed upward. The bracket 1 is projected from the building site P toward the verand B side by tightening the single clamp 5 of the building site mounting unit 4 to the building site P. As shown in FIG. The locking part 71 of the handrail bar 7 with locking part is locked by the locking tool 23 and is moored on the supporting tool 21 . As shown in FIGS. 2 and 5, the handrail bars 7 are horizontally installed between the supports 21 of the brackets 1 adjacent to each other. A temporary handrail 10 composed of a bracket 1 and a handrail bar 7 functions as a transitional safety handrail at an opening or open area of the building A until the permanent handrail is newly installed or restored.

締付け具35の締付け力を解放して伸縮ロッド32を固定管31内に完全に引き込み、伸縮ロッド32の基端部を固定管31の足場側(基端側)円形開口33から足場側に突出せしめ、締付け具35を締付けて伸縮ロッド32の位置を再び固定した状態が図6に示されている。前述のとおり、この状態においては、ブラケット1の張り出しXLは大きく短縮し、手摺桟7は、ベランダBの床構造体F(以下、「床F」という。)の直上領域から足場側に退避した位置に移動する。かくして手摺桟7を足場側に退避させた後、建築物Aの本設手摺Dが床Fの先端部に恒久的に設置される。手摺桟7及びブラケット1は、この状態で放置され、仮設足場Sの解体・撤去時に仮設足場Sと一緒に解体・撤去される。即ち、ブラケット1の張り出しXLをこのように大きく短縮して手摺桟7及びブラケット1を足場側に大きく退避させることにより、本設手摺Dを床Fの先端部に設置することができるので、手摺桟7及びブラケット1を本設手摺Dの設置前に解体・撤去する工程を省略することが可能となる。 The tightening force of the fastener 35 is released, the telescopic rod 32 is completely drawn into the fixed tube 31, and the proximal end of the telescopic rod 32 protrudes from the circular opening 33 of the fixed tube 31 on the scaffold side (base end side) to the scaffold side. 6, the position of the telescoping rod 32 is fixed again by tightening the fastener 35. As shown in FIG. As described above, in this state, the overhang XL of the bracket 1 is greatly shortened, and the handrail beam 7 is retracted from the area directly above the floor structure F (hereinafter referred to as "floor F") of the veranda B to the scaffold side. Move to position. After the handrail bars 7 are retracted to the scaffold side in this way, the permanent handrail D of the building A is permanently installed at the tip of the floor F. The handrail beam 7 and the bracket 1 are left in this state, and are dismantled/removed together with the temporary scaffold S when the temporary scaffold S is dismantled/removed. That is, by greatly shortening the overhang XL of the bracket 1 and retracting the handrail crosspiece 7 and the bracket 1 greatly toward the scaffolding side, the permanent handrail D can be installed at the tip of the floor F. It becomes possible to omit the process of dismantling and removing the crosspiece 7 and the bracket 1 before the permanent handrail D is installed.

図7には、仮設手摺10の他の退避手段が示されている。仮設手摺10は、図7(A)に示す如く、建地Pに対するブラケット1の方向を変更し、ブラケット1を平面視傾斜方向に設置し直すことによって足場側に退避させても良い。この再設置の作業は、単クランプ5の締付け力を解放して建地取付けユニット4を過渡的に建地Pから解放し、ブラケット1の角度を平面視傾斜方向に転向した後、単クランプ5を締付けて建地取付けユニット4を建地Pに再び固定することにより実施し得る。所望により、ブラケット1を平面視傾斜方向に転向するとともに、上記の如く伸縮ロッド32を固定管31内に引き込んでブラケット1の張り出し長XLを短縮しても良い。ブラケット1の取付け角度の変更とブラケット1の短縮とによって仮設手摺10を大きく足場側に退避させた状態が図7(B)に示されている。 FIG. 7 shows another retraction means for the temporary handrail 10. As shown in FIG. As shown in FIG. 7A, the temporary handrail 10 may be retracted to the scaffolding side by changing the direction of the bracket 1 with respect to the construction site P and re-installing the bracket 1 in the inclined direction in plan view. In this re-installation work, the tightening force of the single clamp 5 is released to temporarily release the unit 4 attached to the building site from the building site P, and after the angle of the bracket 1 is turned in the inclined direction in plan view, can be implemented by tightening to fix the building site mounting unit 4 to the building site P again. If desired, the extension length XL of the bracket 1 may be shortened by turning the bracket 1 in the inclined direction in a plan view and retracting the telescopic rod 32 into the fixed pipe 31 as described above. FIG. 7B shows a state in which the temporary handrail 10 is greatly retracted toward the scaffold by changing the mounting angle of the bracket 1 and shortening the bracket 1 .

次に、図8~図21を参照して、本発明の第2実施例について説明する。 Next, a second embodiment of the present invention will be described with reference to FIGS. 8 to 21. FIG.

図8は、本発明に係る仮設手摺の第2実施例を示す側面図、正面図及び平面図である。図8には、楔緊結式足場において好適に使用し得る手摺支持ブラケットの構成が示されている。図9及び図10は、図8に示す手摺支持ブラケットの斜視図及び分解側面図であり、図11は、手摺支持ブラケットの全長を短縮した状態で示す手摺支持ブラケットの側面図及び平面図である。図12は、楔緊結式の手摺桟を手摺支持ブラケットの手摺受けユニットに取付ける態様を示す手摺受けユニットの部分平面図及び部分正面図である。図13は、楔緊結式の手摺桟を手摺支持ブラケットの手摺受けユニットに取付けた状態を示す仮設手摺の部分平面図及び部分正面図である。図14~図22は、図8~図13に示す手摺支持ブラケット及び手摺桟の各種使用形態を例示する仮設足場の部分側面図、部分平面図、部分正面図等の図である。本実施例において、前述の第1実施例の各構成要素又は構成部材と実質的に同一又は同等の構成要素又は構成部材には、同一の参照符号が付されている。 FIG. 8 is a side view, a front view and a plan view showing a second embodiment of a temporary handrail according to the present invention. FIG. 8 shows a handrail support bracket configuration suitable for use in a wedge-tied scaffold. 9 and 10 are a perspective view and an exploded side view of the handrail support bracket shown in FIG. 8, and FIG. 11 is a side view and a plan view of the handrail support bracket showing a state in which the entire length of the handrail support bracket is shortened. . FIG. 12 is a partial plan view and a partial front view of the handrail receiving unit showing how the wedge tie type handrail bar is attached to the handrail receiving unit of the handrail support bracket. FIG. 13 is a partial plan view and a partial front view of a temporary handrail showing a state in which a wedge-type handrail bar is attached to a handrail receiving unit of a handrail support bracket. 14 to 22 are partial side views, partial plan views, partial front views, etc. of the temporary scaffolding illustrating various modes of use of the handrail support brackets and handrail bars shown in FIGS. 8 to 13. FIG. In this embodiment, the same reference numerals are given to components or components that are substantially the same as or equivalent to each component or component of the first embodiment described above.

前述の第1実施例と同様、仮設手摺10を構成する手摺支持ブラケット1(以下、「ブラケット1」という。)は、上下の手摺桟8、9(図13~20)を支持又は支承する手摺受けユニット2と、手摺受けユニット2に連結された上下一対の水平支持ユニット3と、水平支持ユニット3の基端部(足場側端部)に一体的に連結された建地取付けユニット4とから構成される。水平支持ユニット3及び建地取付けユニット4の構成及び構造は、第1実施例において既に説明した構成及び構造と実質的に同一であるので、第1実施例に関する上記説明を援用することにより、重複する説明を省略し、以下、手摺受けユニット2及び手摺桟8、9の構成及び構造について説明する。 As in the first embodiment described above, the handrail support bracket 1 (hereinafter referred to as "bracket 1") constituting the temporary handrail 10 supports or bears the upper and lower handrail bars 8, 9 (Figs. 13 to 20). From a receiving unit 2, a pair of upper and lower horizontal support units 3 connected to the handrail receiving unit 2, and a construction site attachment unit 4 integrally connected to the base end (scaffold side end) of the horizontal support unit 3 Configured. The configurations and structures of the horizontal support unit 3 and the construction site attachment unit 4 are substantially the same as the configurations and structures already described in the first embodiment. A detailed description will be omitted, and the configurations and structures of the handrail receiving unit 2 and the handrail bars 8 and 9 will be described below.

本例の仮設手摺10は、楔緊結式足場用の布材を手摺桟9として使用する使用形態と、単管を手摺桟8として使用する使用形態とを選択的に実施し得る構成を有する。殊に、本例の仮設手摺10を楔緊結式足場に設置する場合には、手摺桟9として、楔緊結式足場用の布材を使用することが可能であり、従って、本例の仮設手摺10は、部品又は部材の品種や、部材数又は部品点数の増大に伴う資材管理の煩雑化等を防止し、資材管理を簡素化する上で極めて有利である。 The temporary handrail 10 of this example has a configuration in which it is possible to selectively implement a mode of use in which cloth material for wedge-tied scaffolding is used as the handrail bar 9 and a mode of use in which a single pipe is used as the handrail bar 8 . In particular, when the temporary handrail 10 of this example is installed on a wedge-tied scaffold, it is possible to use the cloth material for the wedge-tied scaffold as the handrail bar 9. Therefore, the temporary handrail of this example 10 is extremely advantageous in simplifying material management by preventing complication of material management due to an increase in the types of parts or members, the number of parts, or the number of parts.

図8~図10に示す如く、本例の手摺受けユニット2は、第1実施例と同様、手摺桟8、9を支持又は支承するための上下一対の金属製(例えば、鋼製)支持具21と、上下の支持具21を一体的に相互連結する金属製(例えば、鋼製)の縦管22とを備える。各支持具21は、仮設足場の側に向かって開口した断面溝形の金属製部品(例えば、鋼製部品)である。このような手摺受けユニット2の基本構成においては、本例の手摺受けユニット2は、第1実施例と類似する。しかしながら、本例の手摺受けユニット2においては、支持具21は、第1実施例のピン形係止具23に換えて、支持具21の上面に一体的且つ上向きに突設された円形断面且つ中空の短柱11と、短柱11に外装した円筒形の楔緊結式短管12と、短管12の上側において短柱11に外装した円筒形のクランプ緊結用短管13と、短管13及び短柱11を実質的に水平に貫通して短管13を短柱11に対して固定するピン形固定具14とを備える。短管12は、支持具21の上面および短柱11の外周面によって支持又は支承された円筒形の楔緊結式短管を構成する。短管13は、短柱11を挿通可能又は挿入可能な円筒形の鞘管を構成し、短管12の上端面及び短柱11の外周面によって支持又は支承される。例えば、短柱11及び短管13は、金属製(例えば、鋼製)管材の加工品であり、短管12の管体部分15も又、金属製(例えば、鋼製)管材の加工品である。ピン形固定具14は、例えば、金属製の薄平リベット(M10)である。本例において、短柱11の外径は40mmに設定され、短管12、13の外径及び内径は、48.6mm及び43.8mmに夫々設定される。本例において、短柱11及び短管12、13の高さ寸法は夫々、115mm、50mm及び55mmに設定される。なお、支持具21には、図9に示す如く、補強用の金属製(例えば、鋼製)スチフナ29を適宜配設しても良い。スチフナ29は、例えば、図8(A)及び図8(B)に破線で示す如く、支持具21の両側の縁部に配設される。所望により、伸縮ロッド32の引き込み時に生じ得る締付け具35との干渉を回避するための凹所29aがスチフナ29に形成される。 As shown in FIGS. 8 to 10, the handrail receiving unit 2 of this embodiment includes a pair of upper and lower metal (for example, steel) supports for supporting or supporting the handrail bars 8, 9, as in the first embodiment. 21 and a metal (for example, steel) vertical tube 22 integrally interconnecting the upper and lower supports 21 . Each support 21 is a metal component (for example, a steel component) having a channel-shaped cross-section and opening toward the side of the temporary scaffold. In the basic configuration of the handrail receiving unit 2, the handrail receiving unit 2 of this embodiment is similar to that of the first embodiment. However, in the handrail receiving unit 2 of the present embodiment, the support 21 has a circular cross-section and an upwardly protruding portion integrally formed on the upper surface of the support 21 instead of the pin-shaped locking member 23 of the first embodiment. A hollow short post 11, a cylindrical wedge-clamping type short pipe 12 fitted on the short post 11, a cylindrical short pipe 13 for clamp tightening fitted on the short post 11 on the upper side of the short pipe 12, and a short pipe 13. and a pin-shaped fixture 14 extending substantially horizontally through the short post 11 to fix the short tube 13 to the short post 11 . The short pipe 12 constitutes a cylindrical wedge-clamping short pipe supported or supported by the upper surface of the support 21 and the outer peripheral surface of the short post 11 . The short pipe 13 constitutes a cylindrical sheath pipe through which the short pillar 11 can be inserted or inserted, and is supported or supported by the upper end surface of the short pipe 12 and the outer peripheral surface of the short pillar 11 . For example, the short column 11 and the short pipe 13 are metal (for example, steel) pipe work pieces, and the pipe body portion 15 of the short pipe 12 is also a metal (for example, steel) pipe work product. be. The pin-shaped fixture 14 is, for example, a flat metal rivet (M10). In this example, the outer diameter of the short post 11 is set to 40 mm, and the outer and inner diameters of the short tubes 12, 13 are set to 48.6 mm and 43.8 mm, respectively. In this example, the height dimensions of the short column 11 and short pipes 12, 13 are set to 115 mm, 50 mm and 55 mm, respectively. In addition, as shown in FIG. 9, the supporting member 21 may be appropriately provided with a stiffener 29 made of metal (for example, made of steel) for reinforcement. The stiffeners 29 are provided, for example, at the edges of both sides of the support 21 as indicated by broken lines in FIGS. 8(A) and 8(B). If desired, the stiffener 29 is formed with a recess 29a to avoid interference with the fastener 35 that may occur when the telescoping rod 32 is retracted.

短管12は、短管13及び支持具21の間において上下動を拘束される一方、短柱11の外周において自由回転又は遊動回転する。短管12は、楔緊結式の緊結部を構成する楔緊結式フランジ部16を有する。フランジ部16は、一般に楔緊結式足場の支柱に等間隔に配設される金属製(例えば、鋼製)の楔緊結式フランジを部分的に切除してなる金属加工品であり、汎用の楔緊結式足場用布材を楔結合可能な一対の楔孔又は楔開口17(以下、「楔孔17」という。)を有する。楔孔17は、短柱11の中心線に対して線対称の形態及び位置に形成される。楔孔17は、フランジ部16とともに楔結合式の緊結部を構成する。第1実施例と同様、水平支持ユニット3の全長L1は、可変設定することができ、ブラケット1の張り出し長XLは、例えば、最大500mm(XLmax)、最小300mm (XLmin)の範囲内の任意の寸法に可変設定することができる。図11には、張り出し長XLを最小寸法XLminに設定したブラケット1の状態が示されている。 The short pipe 12 is restrained in vertical movement between the short pipe 13 and the support 21 and rotates freely or loosely around the outer periphery of the short pillar 11 . The short pipe 12 has a wedge-clamping flange portion 16 forming a wedge-clamping unit. The flange portion 16 is a metal processed product obtained by partially removing a metal (for example, steel) wedge-tying flange that is generally arranged at equal intervals on the support of a wedge-tying scaffold, and is a general-purpose wedge. It has a pair of wedge holes or wedge openings 17 (hereinafter referred to as "wedge holes 17") that can be wedged with the binding type scaffolding cloth material. The wedge hole 17 is formed in a line-symmetrical shape and position with respect to the center line of the short column 11 . The wedge hole 17 constitutes a wedge coupling type binding portion together with the flange portion 16 . As in the first embodiment, the total length L1 of the horizontal support unit 3 can be variably set, and the overhang length XL of the bracket 1 can be set within a range of, for example, a maximum of 500 mm (XLmax) and a minimum of 300 mm (XLmin). Dimensions can be variably set. FIG. 11 shows the state of the bracket 1 with the overhang length XL set to the minimum dimension XLmin.

図12に示す如く、手摺桟9は、楔緊結式足場用の布材からなり、楔緊結式係合部92を両端部に有する金属製(例えば、鋼製)の管材91と、フランジ部16の楔孔17に圧入可能な楔部材93とから構成される。楔部材93は、楔孔17に整合した状態で工具(図示せず)によって打撃され、工具の打撃力VFにより楔孔17に圧入してフランジ部16に楔結合する。図13及び図14には、上下二段の手摺桟9の各係合部92を上下の支持具21の各フランジ部16に夫々楔結合し、手摺桟9をブラケット1の各スパン間領域に上下二段に架設した状態が示されている。第1実施例と同様、ブラケット1及び手摺桟9からなる仮設手摺10は、本設手摺の設置又は復旧までの工期中、建築物Aの開口部又は開放領域において過渡的な安全手摺として機能する。 As shown in FIG. 12 , the handrail bar 9 is made of a cloth material for wedge-tying scaffolding, and includes a metal (for example, steel) pipe member 91 having wedge-tying engagement portions 92 at both ends, and a flange portion 16 . and a wedge member 93 that can be press-fitted into the wedge hole 17 of. The wedge member 93 is hit by a tool (not shown) while aligned with the wedge hole 17 , and is press-fitted into the wedge hole 17 by the impact force VF of the tool to be wedged with the flange portion 16 . 13 and 14, the engaging portions 92 of the upper and lower handrail bars 9 are wedge-connected to the flange portions 16 of the upper and lower support members 21, respectively, and the handrail bars 9 are connected to the span-to-span regions of the bracket 1. A state in which it is installed in two stages, upper and lower, is shown. As in the first embodiment, the temporary handrail 10 consisting of the bracket 1 and the handrail bars 9 functions as a temporary safety handrail at the opening or open area of the building A during the construction period until the permanent handrail is installed or restored. .

第1実施例と同様、締付け具35の締付け力を解放して伸縮ロッド32を固定管31内に完全に引き込み、ブラケット1の張り出しXLを大きく短縮させた状態が図15に示されている。手摺桟8は、ベランダBの床Fの直上領域から足場側に退避し、この状態において、建築物Aの本設手摺Dが床Fの先端部に恒久的に設置される。手摺桟8及びブラケット1は、仮設足場Sの解体・撤去時に仮設足場Sと一緒に解体・撤去される。 As in the first embodiment, FIG. 15 shows a state in which the tightening force of the fastener 35 is released, the telescopic rod 32 is completely retracted into the fixed tube 31, and the overhang XL of the bracket 1 is greatly shortened. The handrail bar 8 is retracted from the area directly above the floor F of the veranda B to the scaffold side, and in this state, the permanent handrail D of the building A is permanently installed at the tip of the floor F. The handrail crosspiece 8 and the bracket 1 are dismantled/removed together with the temporary scaffold S when the temporary scaffold S is dismantled/removed.

第1実施例と同様、仮設手摺10の他の退避手段として、図16(A)に示す如く、建地Pに対するブラケット1の取付け方向を変更し、ブラケット1を平面視傾斜方向に設置し直し、これにより、仮設手摺10を足場側に退避させても良い。所望により、ブラケット1を平面視傾斜方向に転向するとともに、上記の如く伸縮ロッド32を固定管31内に引き込んでブラケット1を短縮させても良い。ブラケット1の取付け角度の変更と、ブラケット1の短縮とによって仮設手摺10を大きく足場側に退避させた状態が図16(B)に示されている。 As in the first embodiment, as another retracting means for the temporary handrail 10, as shown in FIG. Therefore, the temporary handrail 10 may be retracted toward the scaffold. If desired, the bracket 1 may be tilted in plan view and the telescopic rod 32 may be retracted into the fixed tube 31 as described above to shorten the bracket 1 . FIG. 16(B) shows a state in which the temporary handrail 10 is greatly retracted toward the scaffolding by changing the mounting angle of the bracket 1 and shortening the bracket 1 .

図17~図20には、単管足場からなる仮設足場Sにブラケット1を取付けた状態が示されている。この使用例においては、単管足場において使用される管材、即ち、単管を手摺桟8として好適に使用し得る。直交クランプ18が上下の支持具21の各短管13に夫々緊結され、単管からなる手摺桟8が各直交クランプ18に緊結される。手摺桟8は、ブラケット1の各スパン間領域に上下二段に架設される。図18及び図19に示す如く、ブラケット1及び手摺桟8からなる仮設手摺10は、本設手摺の新設又は復旧までの工期中、建築物Aの開口部又は開放領域において過渡的な安全手摺として機能する。ブラケット1の張り出し長XLを短縮して仮設手摺10を足場側に退避させた後、建築物Aの本設手摺Dを床Fの先端部に恒久的に設置した状態が図20に示されている。手摺桟8及びブラケット1は、仮設足場Sの解体・撤去時に仮設足場Sと一緒に解体・撤去される。なお、仮設手摺10の他の退避手段として、クランプ5、18の締付け力を過渡的に解放して、建地Pに対するブラケット1の取付け方向を変更しても良い。所望により、短柱11の上端部に鍔又はカラーを一体的に配設し、短管13を短柱11に対して自由回転可能又は遊動回転可能に外装し、水平支持ユニット3と手摺桟8とを平面視において角度変更可能に連結しても良い。 FIGS. 17 to 20 show a state in which the bracket 1 is attached to the temporary scaffolding S made of a single pipe scaffolding. In this usage example, a pipe material used in a single pipe scaffolding, that is, a single pipe can be suitably used as the handrail crosspiece 8 . Orthogonal clamps 18 are tightly connected to the short pipes 13 of the upper and lower supports 21, respectively, and the handrail bars 8 made of single pipes are tightly connected to the orthogonal clamps 18, respectively. The handrail crosspieces 8 are constructed in two stages, upper and lower, in each span-to-span region of the bracket 1 . As shown in Figures 18 and 19, a temporary handrail 10 consisting of a bracket 1 and a handrail bar 8 is used as a temporary safety handrail at an opening or open area of building A during the construction period until the permanent handrail is newly installed or restored. Function. FIG. 20 shows a state in which the permanent handrail D of the building A is permanently installed at the tip of the floor F after the temporary handrail 10 is retracted to the scaffold side by shortening the overhang length XL of the bracket 1. there is The handrail crosspiece 8 and the bracket 1 are dismantled/removed together with the temporary scaffold S when the temporary scaffold S is dismantled/removed. As another retracting means for the temporary handrail 10, the clamping force of the clamps 5 and 18 may be temporarily released to change the mounting direction of the bracket 1 with respect to the construction site P. If desired, a flange or a collar is integrally disposed on the upper end of the short pillar 11, and the short pipe 13 is mounted on the short pillar 11 so as to be freely rotatable or freely rotatable. may be connected so that the angle can be changed in plan view.

図21には、枠組足場からなる仮設足場Sに対して本例のブラケット1を取付けた状態が示されている。この使用例においては、楔緊結式足場用の布材が手摺桟9として使用され、或いは、単管が手摺桟8として使用される。図21には、楔緊結式足場用の布材からなる手摺桟9をブラケット1の各スパン間領域に上下二段に架設した状態が示されている。図22には、ブラケット1の張り出し長XLを短縮させ、仮設手摺10を足場側に退避させた後、建築物Aの本設手摺Dを床Fの先端部に恒久的に設置した状態が示されている。手摺桟8及びブラケット1は、仮設足場Sの解体・撤去時に仮設足場Sと一緒に解体・撤去される。 FIG. 21 shows a state in which the bracket 1 of this example is attached to a temporary scaffolding S made of a framework scaffolding. In this example of use, cloth material for wedge binding scaffolding is used as the handrail bar 9 or a single pipe is used as the handrail bar 8 . FIG. 21 shows a state in which handrail bars 9 made of cloth material for wedge binding type scaffolding are installed in two upper and lower stages in each span region of the bracket 1 . FIG. 22 shows a state in which the permanent handrail D of the building A is permanently installed at the tip of the floor F after the overhang length XL of the bracket 1 is shortened and the temporary handrail 10 is retracted to the scaffold side. It is The handrail crosspiece 8 and the bracket 1 are dismantled/removed together with the temporary scaffold S when the temporary scaffold S is dismantled/removed.

以上、本発明の好適な実施例について詳細に説明したが、本発明は上記実施例に限定されるものではなく、特許請求の範囲に記載された本発明の範囲内で種々の変形又は変更が可能である。 Although the preferred embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments, and various modifications and changes can be made within the scope of the present invention described in the claims. It is possible.

例えば、上記実施例の手摺支持ブラケットにおいては、手摺受けユニットの支持具及び建地取付けユニットの連結具は、溝形断面の金属部材であるが、支持具及び/又は連結具を足場側又は上下方向に開口した断面L形又はボックス形の金属部材によって形成しても良い。所望により、スチフナ、補強リブ等の補強手段によって支持具及び/又は連結具を適宜補強しても良い。 For example, in the handrail support bracket of the above embodiment, the support of the handrail receiving unit and the connector of the construction site installation unit are metal members having a grooved cross section, but the support and/or the connector are mounted on the scaffold side or above and below the scaffold. It may be formed by a metal member having an L-shaped or box-shaped cross section that is open in the direction. If desired, the support and/or connector may be appropriately reinforced with reinforcing means such as stiffeners, reinforcing ribs, or the like.

また、上記実施例に係る仮設手摺は、建築物のベランダに設置したものとして説明したが、本発明の仮設手摺は、施工中の建築物のバルコニー、マシンハッチ、機材等搬入・搬出口等の開口部又は開放領域に適宜設置し、或いは、作業の安全性を確保すべく仮設手摺を要する施工中の土木構造物やプラント設備等の開口部又は開放領域などに適宜設置することができる。 In addition, the temporary handrails according to the above embodiments were explained as being installed on the veranda of the building, but the temporary handrails of the present invention can be installed on the balcony of the building under construction, machine hatches, loading/unloading exits for equipment, etc. It can be appropriately installed in an opening or open area, or it can be appropriately installed in an opening or open area of a civil engineering structure or plant facility under construction that requires a temporary handrail to ensure the safety of work.

更に、上記実施例では、手摺支持ブラケットは、主として鋼製部品又は部材を組み付けた構成を有するが、手摺支持ブラケットは、アルミ製部品、アルミ成形部材等の比較的軽量な金属部品又は部材の組立体として製作しても良い。 Furthermore, in the above-described embodiment, the handrail support bracket mainly has a structure in which steel parts or members are assembled, but the handrail support bracket is a combination of relatively lightweight metal parts or members such as aluminum parts and aluminum molded members. You may manufacture it as a solid.

また、上記第2実施例に係る仮設手摺は、短柱の楔緊結式緊結部としてフランジ部(鍔部)を用いた構成のものであるが、支柱ポケット部(ボックス部)等の他の形式の緊結部を短柱の緊結部として採用しても良く、手摺桟側の楔緊結式係合具についても、上記第2実施例の構造に限定されるものではなく、他の形式の楔緊結式係合部を備えた楔緊結式足場の布材等を手摺桟として採用しても良い。 In addition, the temporary handrail according to the second embodiment has a structure using a flange portion (brim portion) as a wedge-type binding portion of the short pillar. may be employed as the binding portion of the short pillar, and the wedge binding type engaging device on the handrail side is not limited to the structure of the second embodiment, and other types of wedge binding may be employed. A cloth material of a wedge binding type scaffold having a type engaging portion may be adopted as the handrail bar.

更には、上記実施例の建地取付けユニットは、単クランプによって仮設足場の建地(支柱又は脚柱等)に連結されるが、他の形式のクランプ又は緊結手段(楔緊結構造等)によって仮設足場の建地等に建地取付けユニットを連結することも可能である。 Furthermore, the building-mounted units of the above embodiments are connected to the temporary scaffold building site (posts or pedestals, etc.) by simple clamps, but are temporarily attached by other types of clamps or fastening means (wedge fastening structures, etc.). It is also possible to connect the building site mounting unit to the building site of the scaffolding or the like.

更に又、上記実施例では、上下の連結具同士を縦管によって一体的に相互連結しているが、変形例として、上下の固定管同士を縦管等によって一体的に相互連結しても良く、また、他の変形例として、上側の連結具と下側の固定管とを一体的に連結し、或いは、上側の固定管と下側の連結具とを一体的に連結しても良い。 Furthermore, in the above embodiment, the upper and lower connectors are integrally interconnected by vertical pipes, but as a modification, the upper and lower fixed pipes may be integrally interconnected by vertical pipes or the like. Also, as another modified example, the upper connecting tool and the lower fixing tube may be integrally connected, or the upper fixing tube and the lower connecting tool may be integrally connected.

本発明に係る仮設手摺は、建築物又は構造物の建設工事において使用される枠組足場、楔緊結式足場及び単管足場等の仮設足場において好適に使用し得る。本発明は殊に、施工中の建築物又は構造物の開口部又は開放領域に過渡的に手摺を設置すべく、仮設足場から建築物又は構造物に向かって張り出して設置される仮設手摺及びその設置方法に好ましく適用し得る。本発明によれば、手摺桟に作用する外部荷重や手摺材の自重等を手摺支持ブラケットの上下の水平支持部材に適切に分散し、仮設手摺用ブラケットの張り出し寸法の可変設定範囲を拡大し、手摺桟の強度又は耐力を向上し、或いは、仮設資材の資材管理を簡素化することが可能となるので、その実用的効果は、顕著である。 INDUSTRIAL APPLICABILITY The temporary handrail according to the present invention can be suitably used in temporary scaffolds such as framework scaffolds, wedge-tie scaffolds and single-pipe scaffolds used in construction work of buildings or structures. In particular, the present invention relates to a temporary handrail overhanging a building or structure from a temporary scaffold, and a temporary handrail installed over an opening or open area of a building or structure under construction. It can be preferably applied to the installation method. According to the present invention, the external load acting on the handrail bar, the weight of the handrail material, etc. are appropriately distributed to the upper and lower horizontal support members of the handrail support bracket, and the variable setting range of the overhang dimension of the temporary handrail bracket is expanded. The practical effect is remarkable because it is possible to improve the strength or yield strength of the handrail crosspiece or to simplify the material management of temporary construction materials.

1 手摺支持ブラケット(仮設手摺用ブラケット)
2 手摺受けユニット
3 水平支持ユニット
4 建地取付けユニット
5 単クランプ(仮設工事用クランプ)
7、8、9 手摺桟
10 仮設手摺
11 短柱
12 楔緊結式短管
13 クランプ緊結用短管(鞘管)
14 ピン形固定具
16 楔緊結式フランジ部(緊結部)
17 楔孔又は楔開口(緊結部)
18 直交クランプ(仮設工事用クランプ)
21 支持具
22 縦管
23 ピン形係止具
25 溝内空間
26 鉛直端壁
28 単クランプ(仮設工事用クランプ)
29 スチフナ
31 固定管
32 伸縮ロッド
33、34 円形開口
35 締付け具
41 連結具
42 縦管
71 係止部
91 管材
92 楔緊結式係合部
93 楔部材
A 建築物
B ベランダ
D 本設手摺
F ベランダの床構造体
P 建地
S 仮設足場
XL 張り出し長
L1、L2、L3 全長
ΔL 伸長寸法
1 Handrail support bracket (temporary handrail bracket)
2 Handrail receiving unit 3 Horizontal support unit 4 Construction site installation unit 5 Single clamp (clamp for temporary construction work)
7, 8, 9 Handrail crosspiece 10 Temporary handrail
11 Short column 12 Wedge connection type short pipe 13 Clamp connection short pipe (sheath pipe)
14 Pin type fixture 16 Wedge fastening type flange part (fastening part)
17 wedge hole or wedge opening (fastening part)
18 Orthogonal clamp (clamp for temporary construction)
21 support tool 22 vertical tube 23 pin type locking tool 25 space in groove 26 vertical end wall 28 single clamp (clamp for temporary work)
29 Stiffener 31 Fixed pipe 32 Telescopic rods 33, 34 Circular opening 35 Fastener 41 Connector 42 Vertical pipe 71 Locking portion 91 Pipe material 92 Wedge tightening type engaging portion 93 Wedge member A Building B Veranda D Permanent handrail F Veranda Floor structure P Construction site S Temporary scaffolding XL Overhang length L1, L2, L3 Total length ΔL Extension dimension

本発明は更に、施工中の建築物又は構造物(A)の開口部又は開放領域に過渡的に手摺を設置するために仮設足場(S)から張り出して設置される仮設手摺用ブラケット(1)と、隣り合う仮設手摺用ブラケットの先端部の間に架設される手摺桟(7,8,9)とから構成される仮設手摺(10)において、
前記仮設手摺用ブラケットは、手摺桟を支持又は支承する手摺受けユニット(2)と、入れ子式伸縮構造を有する上下の水平支持ユニット(3)と、仮設足場の建地(P)に取付け可能な建地取付けユニット(4)とから構成され、
前記手摺受けユニットは、上下の前記水平支持ユニットの伸縮ロッドの手摺桟側端部に夫々連結された上下の金属製支持具(21)と、該支持具を一体的に相互連結する金属製の縦管(22)と、前記支持具の上面に一体的且つ上向きに突設された円形断面の金属製短柱(11)と、該短柱が貫通し又は挿入され、前記支持具の上面および前記短柱の外周面によって支持又は支承された円筒形の楔緊結式短管(12)とを有し、
前記手摺桟(9)は、楔緊結式の係合手段(92,93)を両端部に有する金属製の管材(91)からなり、該管材の係合手段を前記短管の緊結部(16,17)に楔結合又は楔緊結することにより、隣り合う前記ブラケットの間に架設されることを特徴とする仮設手摺(請求項3)を提供する。
The present invention further provides a temporary handrail bracket (1) overhanging a temporary scaffolding (S) to temporarily install a handrail in an opening or open area of a building or structure (A) under construction. and handrail bars (7, 8, 9) constructed between the tips of adjacent temporary handrail brackets,
The temporary handrail bracket includes a handrail receiving unit (2) that supports or bears the handrail bar, upper and lower horizontal support units (3) that have a telescoping structure, and can be attached to the construction site (P) of the temporary scaffolding. It consists of a construction site installation unit (4),
The handrail receiving unit comprises upper and lower metal supports (21) respectively connected to the ends of the extensible rods of the upper and lower horizontal support units on the side of the handrail , and metal supports integrally interconnecting the supports. A vertical pipe (22), a metal short post (11) with a circular cross section integrally protruding upward from the upper surface of the support, and the short post penetrates or is inserted into the upper surface of the support and a cylindrical wedge-connected short pipe (12) supported or supported by the outer peripheral surface of the short column;
The handrail bar (9) is composed of a metal pipe member (91) having wedge binding type engagement means (92, 93) at both ends, and the engagement means of the pipe member is the binding portion (16) of the short pipe. , 17) to be wedged or wedged to provide a temporary handrail (Claim 3) that is erected between the adjacent brackets.

Claims (18)

施工中の建築物又は構造物(A)の開口部又は開放領域に過渡的に手摺を設置するために仮設足場(S)から張り出して設置される仮設手摺用ブラケット(1)と、隣り合う仮設手摺用ブラケットの先端部の間に架設される手摺桟(7,8,9)とから構成される仮設手摺(10)において、
前記仮設手摺用ブラケットは、手摺桟を支持又は支承する手摺受けユニット(2)と、入れ子式伸縮構造を有する上下の水平支持ユニット(3)と、仮設足場の建地(P)に取付け可能な建地取付けユニット(4)とから構成され、
該建地取付けユニットは、仮設足場の建地に着脱可能に連結される上下の金属製連結具(41)を備え、
前記手摺受けユニットは、手摺桟が連結される上下の金属製支持具(21)と、該支持具を一体的に相互連結する金属製の縦管(22)とを備え、
前記水平支持ユニットは、実質的に水平に延びる固定管(31)及び伸縮ロッド(32)を有し、前記伸縮ロッドの足場側部分は、前記固定管の管内領域に延入し、前記伸縮ロッドの手摺桟側端部は前記支持具に連結されていることを特徴とする仮設手摺。
A temporary handrail bracket (1) overhanging a temporary scaffolding (S) to temporarily install a handrail in an opening or open area of a building or structure under construction (A) and an adjacent temporary A temporary handrail (10) comprising handrail bars (7, 8, 9) constructed between the ends of handrail brackets,
The temporary handrail bracket includes a handrail receiving unit (2) that supports or bears the handrail bar, upper and lower horizontal support units (3) that have a telescoping structure, and can be attached to the construction site (P) of the temporary scaffolding. It consists of a construction site installation unit (4),
The construction site attachment unit includes upper and lower metal connectors (41) that are detachably connected to the construction site of the temporary scaffold,
The handrail receiving unit comprises upper and lower metal supports (21) to which handrail bars are connected, and metal vertical pipes (22) that integrally interconnect the supports,
The horizontal support unit has a substantially horizontally extending fixed tube (31) and a telescopic rod (32), the scaffolding side portion of the telescopic rod extends into the intra-tube region of the fixed tube, and the telescopic rod A temporary handrail, characterized in that the handrail crosspiece side end of the handrail is connected to the support.
施工中の建築物又は構造物(A)の開口部又は開放領域に過渡的に手摺を設置するために仮設足場(S)から張り出して設置される仮設手摺用ブラケット(1)と、隣り合う仮設手摺用ブラケットの先端部の間に架設される手摺桟(7,8,9)とから構成される仮設手摺(10)において、
前記仮設手摺用ブラケットは、手摺桟を支持又は支承する手摺受けユニット(2)と、入れ子式伸縮構造を有する上下の水平支持ユニット(3)と、仮設足場の建地(P)に取付け可能な建地取付けユニット(4)とから構成され、
前記建地取付けユニットは、仮設足場の建地(P)に着脱可能に連結される上下の金属製連結具(41)を備え、上側の前記連結具は、上方に向かって開口した断面溝形、断面L形又はボックス形の金具からなり、下側の前記連結具は、下方に向かって開口した断面溝形、断面L形又はボックス形の金具からなり、
前記手摺受けユニットは、手摺桟が連結される上下の金属製支持具(21)と、該支持具を一体的に相互連結する金属製の縦管(22)とを備え、前記支持具は夫々、仮設足場に向かって開口した断面溝形、断面L形又はボックス形の金具からなり、
前記水平支持ユニットは、実質的に水平に延びる固定管(31)及び伸縮ロッド(32)を有し、該固定管の足場側端部は、前記連結具に連結され、前記伸縮ロッドの全長は、前記固定管の全長よりも長く、前記伸縮ロッドの足場側部分は、前記固定管の管内領域に延入し且つ水平支持ユニットの最短縮時に固定管の足場側端部の開口(33)から足場側に突出し、前記伸縮ロッドの手摺桟側の端部は、前記支持具の溝内空間又は内側空間(25)に延入して該支持具に連結されており、前記固定管の手摺桟側の端部は、水平支持ユニットの最短縮時に前記支持具の溝内空間又は内側空間に延入することを特徴とする仮設手摺。
A temporary handrail bracket (1) overhanging a temporary scaffolding (S) to temporarily install a handrail in an opening or open area of a building or structure under construction (A) and an adjacent temporary A temporary handrail (10) comprising handrail bars (7, 8, 9) constructed between the ends of handrail brackets,
The temporary handrail bracket includes a handrail receiving unit (2) that supports or bears the handrail bar, upper and lower horizontal support units (3) that have a telescoping structure, and can be attached to the construction site (P) of the temporary scaffolding. It consists of a construction site installation unit (4),
The building site attachment unit includes upper and lower metal connectors (41) that are detachably connected to the building site (P) of the temporary scaffolding, and the upper connector has a groove-shaped cross section that is open upward. , L-shaped cross section or box-shaped metal fittings, and the lower connecting tool consists of a groove-shaped cross-sectional metal fitting opening downward, L-shaped cross section or box-shaped metal fittings,
The handrail receiving unit comprises upper and lower metal supports (21) to which the handrail bars are connected, and vertical metal pipes (22) that integrally interconnect the supports. , consisting of metal fittings with a groove-shaped cross section, an L-shaped cross section, or a box-shaped cross section that opens toward the temporary scaffolding,
The horizontal support unit has a substantially horizontally extending fixed tube (31) and a telescopic rod (32), the scaffolding end of the fixed tube is connected to the connector, and the total length of the telescopic rod is , the scaffolding-side portion of the telescopic rod extends into the intra-tube region of the fixed tube and extends from an opening (33) in the scaffold-side end of the fixed tube when the horizontal support unit is at its shortest. The extensible rod protrudes toward the scaffold, and the end of the extensible rod on the side of the railing extends into the space inside the groove or the inner space (25) of the support and is connected to the support, and the handrail of the fixed pipe is connected to the support. A temporary handrail, characterized in that the side ends extend into the grooved or inner space of said support when the horizontal support unit is most shortened.
施工中の建築物又は構造物(A)の開口部又は開放領域に過渡的に手摺を設置するために仮設足場(S)から張り出して設置される仮設手摺用ブラケット(1)と、隣り合う仮設手摺用ブラケットの先端部の間に架設される手摺桟(7,8,9)とから構成される仮設手摺(10)において、
前記仮設手摺用ブラケットは、手摺桟を支持又は支承する手摺受けユニット(2)と、入れ子式伸縮構造を有する上下の水平支持ユニット(3)と、仮設足場の建地(P)に取付け可能な建地取付けユニット(4)とから構成され、
前記手摺受けユニットは、上下の前記水平支持ユニットの伸縮ロッドの足場側端部に夫々連結された上下の金属製支持具(21)と、該支持具を一体的に相互連結する金属製の縦管(22)と、前記支持具の上面に一体的且つ上向きに突設された円形断面の金属製短柱(11)と、該短柱が貫通し又は挿入され、前記支持具の上面および前記短柱の外周面によって支持又は支承された円筒形の楔緊結式短管(12)とを有し、
前記手摺桟(9)は、楔緊結式の係合手段(92,93)を両端部に有する金属製の管材(91)からなり、該管材の係合手段を前記短管の緊結部(16,17)に楔結合又は楔緊結することにより、隣り合う前記ブラケットの間に架設されることを特徴とする仮設手摺。
A temporary handrail bracket (1) overhanging a temporary scaffolding (S) to temporarily install a handrail in an opening or open area of a building or structure under construction (A) and an adjacent temporary A temporary handrail (10) comprising handrail bars (7, 8, 9) constructed between the ends of handrail brackets,
The temporary handrail bracket includes a handrail receiving unit (2) that supports or bears the handrail bar, upper and lower horizontal support units (3) that have a telescoping structure, and can be attached to the construction site (P) of the temporary scaffolding. It consists of a construction site installation unit (4),
The handrail receiving unit consists of upper and lower metal supports (21) respectively connected to the ends of the telescopic rods of the upper and lower horizontal support units on the scaffold side, and a metal vertical support that integrally interconnects the supports. A pipe (22), a metal stub (11) with a circular cross section integrally protruding upward from the upper surface of the support, and the short pillar penetrates or is inserted into the upper surface of the support and the a cylindrical wedge-clamped short pipe (12) supported or supported by the outer peripheral surface of the short pillar;
The handrail bar (9) is composed of a metal pipe member (91) having wedge binding type engagement means (92, 93) at both ends, and the engagement means of the pipe member is the binding portion (16) of the short pipe. , 17), the temporary handrail is erected between the adjacent brackets by wedging or wedging.
前記伸縮ロッドの手摺桟側端部を前記支持具に一体的に連結し、前記固定管の足場側端部を前記連結具に一体的に連結するとともに、上下の前記連結具同士、或いは、上下の前記固定管同士を金属製の縦管(42)によって一体的に相互連結することを特徴とする請求項1又は2に記載の仮設手摺。 The handrail side end of the extensible rod is integrally connected to the support, and the scaffold side end of the fixed pipe is integrally connected to the connector, and the upper and lower connectors are connected to each other, or the upper and lower connectors are connected to each other. 3. A temporary handrail according to claim 1 or 2, characterized in that said fixed pipes are integrally interconnected by means of vertical pipes (42) made of metal. 前記連結具は、仮設工事用クランプ(5)によって仮設足場の建地に緊結され、前記支持具は、係止部付き手摺材の係止孔に挿入可能なピン形係止具(23)と、単管を緊結可能な仮設工事用クランプ(28)とを有し、係止部付き手摺材(7)又は単管(8)を手摺桟として選択的に支承又は支持し得るように構成されることを特徴とする請求項1、2又は4に記載の仮設手摺。 The connecting device is fastened to the construction site of the temporary scaffolding by a temporary construction clamp (5), and the supporting device is a pin-shaped locking device (23) that can be inserted into the locking hole of the handrail material with locking portions. , and a temporary work clamp (28) capable of tightening a single pipe, and are configured to selectively support or support the handrail material (7) with locking portion or the single pipe (8) as a handrail crosspiece. The temporary handrail according to claim 1, 2 or 4, characterized in that: 前記水平支持ユニットは、前記固定管に対する前記伸縮ロッドの相対位置を固定する締付け具(35)を有することを特徴とする請求項1~5のいずれか1項に記載の仮設手摺。 A temporary handrail according to any one of claims 1 to 5, characterized in that said horizontal support unit comprises a fastener (35) for fixing the relative position of said telescopic rod with respect to said fixed tube. 前記固定管の足場側端部の管壁外周面には、前記連結具の側壁部分が一体的に連結され、前記伸縮ロッドの手摺桟側の端部は、前記支持具に一体的に連結されることを特徴とする請求項1~6のいずれか1項に記載の仮設手摺。 The side wall portion of the connector is integrally connected to the outer peripheral surface of the pipe wall at the end of the fixed pipe on the scaffold side, and the end of the extensible rod on the handrail side is integrally connected to the support. The temporary handrail according to any one of claims 1 to 6, characterized in that: 前記伸縮ロッドの手摺桟側の端部は、前記支持具の鉛直端壁に一体的に連結されることを特徴とする請求項1乃至7のいずれか1項に記載の仮設手摺。 8. The temporary handrail according to any one of claims 1 to 7, wherein the extensible rod has an end on the handrail bar side which is integrally connected to the vertical end wall of the support. 前記手摺桟は、楔緊結式係合部(92,93)を両端に備えた楔緊結式足場用の楔緊結式布材からなり、前記楔緊結式短管は、支持具の上面および短柱の外周面によって回転可能に支持又は支承されることを特徴とする請求項3に記載の仮設手摺。 The handrail bar is made of a wedge-tied cloth material for a wedge-tied scaffold having wedge-tied engaging portions (92, 93) at both ends, and the wedge-tied short pipes are attached to the upper surface of the support and the short pillars. 4. The temporary handrail according to claim 3, wherein the temporary handrail is rotatably supported or supported by the outer peripheral surface of the. 前記手摺受けユニットは、前記短柱を挿通可能又は挿入可能な円筒形の鞘管(13)を更に有し、該鞘管は、前記短管の上端面及び上記短柱の外周面によって支持又は支承されることを特徴とする請求項3又は9に記載の仮設手摺。 The handrail receiving unit further has a cylindrical sheath tube (13) through which the short pillar can be inserted or inserted, and the sheath tube is supported or supported by the upper end surface of the short tube and the outer peripheral surface of the short pillar. 10. A temporary handrail according to claim 3 or 9, characterized in that it is supported. 前記鞘管は、仮設工事用クランプ(18)を緊結可能な外周面を有し、手摺桟を構成する単管が前記クランプによって前記鞘管に一体的に連結されることを特徴とする請求項10に記載の仮設手摺。 The sheath pipe has an outer peripheral surface that can be tightened with a temporary construction clamp (18), and the single pipe constituting the handrail is integrally connected to the sheath pipe by the clamp. Temporary handrail according to 10. 請求項1乃至11のいずれか1項に記載された仮設手摺を前記建築物又は構造物(A)の開口部又は開放領域に設置する仮設手摺の設置方法において、
前記水平支持ユニット(3)の伸縮構造による該水平支持ユニットの全長(L1)の短縮、及び/又は、前記建地(P)に対する前記建地取付けユニット(4)の過渡的な緊結力解放状態又は係合離脱状態を利用した前記仮設手摺用ブラケットの張り出し方向の転向又は変更により、前記手摺桟(7,8,9)を足場側に退避させ、前記開口部又は開放領域に対する本設手摺の設置を可能にすることを特徴とする仮設手摺の設置方法。
A temporary handrail installation method for installing the temporary handrail according to any one of claims 1 to 11 in an opening or open area of the building or structure (A),
Shortening of the overall length (L1) of the horizontal support unit (3) due to the expansion and contraction structure of the horizontal support unit (3) and/or a transitional binding force releasing state of the building site attachment unit (4) with respect to the building site (P) Alternatively, by turning or changing the overhanging direction of the temporary handrail bracket using the disengaged state, the handrail bars (7, 8, 9) are retracted toward the scaffold, and the permanent handrail relative to the opening or open area is removed. A method for installing a temporary handrail characterized by enabling installation.
請求項11に記載された仮設手摺を前記建築物又は構造物(A)の開口部又は開放領域に設置する仮設手摺の設置方法において、
楔緊結式足場に該仮設手摺を設置するとき、該楔緊結式足場の支柱を相互連結する布材と同じ布材を前記手摺桟(9)として前記仮設手摺用ブラケットの間に架設し、
単管足場に前記仮設手摺を設置するとき、前記鞘管に取付けられた前記クランプ(18)によって単管を前記手摺桟(8)として前記仮設手摺用ブラケットの間に架設することを特徴とする仮設手摺の設置方法。
A temporary handrail installation method for installing the temporary handrail described in claim 11 in an opening or open area of the building or structure (A),
When the temporary handrail is installed on the wedge-tied scaffold, the same cloth material as the cloth material for interconnecting the posts of the wedge-tied scaffold is installed between the temporary handrail brackets as the handrail crosspiece (9),
When the temporary handrail is installed on a single pipe scaffold, the clamp (18) attached to the sheath pipe is used to construct the single pipe as the handrail crosspiece (8) between the temporary handrail brackets. How to install temporary handrails.
前記仮設手摺用ブラケットを前記仮設足場(S)の腕木方向又は梁間方向に配向した仮設手摺の設置状態において、前記水平支持ユニットの最伸長時における仮設手摺の張り出し寸法XLmaxと、該水平支持ユニットの最短縮時における仮設手摺の張り出し寸法XLminとの比として定義される寸法比XLmin/XLmaxが、0.55~0.7の範囲内の値に設定されることを特徴とする請求項12又は13に記載の設置方法。 In the installation state of the temporary handrail in which the temporary handrail bracket is oriented in the direction of the arm of the temporary scaffold (S) or the direction between the beams, the overhang dimension XLmax of the temporary handrail when the horizontal support unit is fully extended, and the horizontal support unit Claim 12 or 13, characterized in that a dimension ratio XLmin/XLmax defined as a ratio of the overhang dimension XLmin of the temporary handrail at the time of minimum shortening is set to a value within the range of 0.55 to 0.7. Installation method described in . 前記水平支持ユニットの最伸長時における前記張り出し寸法XLmaxは、40cm~60cmの範囲内の値に設定され、該水平支持ユニットの最短縮時における仮設手摺の張り出し寸法XLminは、22cm~40cmの範囲内の値に設定されることを特徴とする請求項14に記載の設置方法。 The overhang dimension XLmax when the horizontal support unit is fully extended is set to a value within the range of 40 cm to 60 cm, and the overhang dimension XLmin of the temporary handrail when the horizontal support unit is minimized is within the range of 22 cm to 40 cm. 15. The installation method according to claim 14, wherein the value of . 施工中の建築物又は構造物(A)の開口部又は開放領域に過渡的に手摺を設置すべく、仮設足場(S)から張り出して設置される仮設手摺用ブラケット(1)であって、仮設手摺(10)の手摺桟(7,8,9)をその先端部で支持又は支承する仮設手摺用ブラケットにおいて、
手摺桟を支持又は支承する手摺受けユニット(2)と、入れ子式伸縮構造を有する上下の水平支持ユニット(3)と、仮設足場の建地(P)に取付け可能な建地取付けユニット(4)とを有し、
該建地取付けユニットは、仮設足場の建地に着脱可能に連結される上下の金属製連結具(41)を備え、
前記手摺受けユニットは、手摺桟が連結される上下の金属製支持具(21)と、該支持具を一体的に相互連結する金属製の縦管(22)とを備え、
前記水平支持ユニットは、実質的に水平に延びる固定管(31)及び伸縮ロッド(32)を有し、該伸縮ロッドの足場側部分は、前記固定管の管内領域に延入し、前記伸縮ロッドの手摺桟側端部は前記支持具に連結されていることを特徴とする仮設手摺用ブラケット。
Temporary handrail bracket (1) installed overhanging temporary scaffolding (S) in order to temporarily install a handrail in an opening or open area of a building or structure (A) under construction. A temporary handrail bracket that supports or bears the handrail bars (7, 8, 9) of the handrail (10) at its tip,
A handrail receiving unit (2) that supports or supports a handrail bar, an upper and lower horizontal support unit (3) that has a telescoping structure, and a construction site attachment unit (4) that can be attached to the construction site (P) of temporary scaffolding. and
The construction site attachment unit includes upper and lower metal connectors (41) that are detachably connected to the construction site of the temporary scaffold,
The handrail receiving unit comprises upper and lower metal supports (21) to which handrail bars are connected, and metal vertical pipes (22) that integrally interconnect the supports,
Said horizontal support unit has a substantially horizontally extending fixed tube (31) and a telescopic rod (32), the scaffolding side portion of said telescopic rod extends into the tube inner region of said fixed tube, said telescopic rod A temporary handrail bracket, characterized in that the handrail bar side end portion of the temporary handrail bracket is connected to the support member.
施工中の建築物又は構造物(A)の開口部又は開放領域に過渡的に手摺を設置すべく、仮設足場(S)から張り出して設置される仮設手摺用ブラケット(1)であって、仮設手摺(10)の手摺桟(7,8,9)をその先端部で支持又は支承する仮設手摺用ブラケットにおいて、
手摺桟を支持又は支承する手摺受けユニット(2)と、入れ子式伸縮構造を有する上下の水平支持ユニット(3)と、仮設足場の建地(P)に取付け可能な建地取付けユニット(4)とを有し、
前記建地取付けユニットは、仮設足場の建地(P)に着脱可能に連結される上下の金属製連結具(41)を備え、上側の前記連結具は、上方に向かって開口した断面溝形、断面L形又はボックス形の金具からなり、下側の前記連結具は、下方に向かって開口した断面溝形、断面L形又はボックス形の金具からなり、
前記手摺受けユニットは、手摺桟が連結される上下の金属製支持具(21)と、該支持具を一体的に相互連結する金属製の縦管(22)とを備え、前記支持具は夫々、仮設足場に向かって開口した断面溝形、断面L形又はボックス形の金具からなり、
前記水平支持ユニットは、実質的に水平に延びる固定管(31)及び伸縮ロッド(32)を有し、該固定管の足場側端部は、前記連結具に連結され、前記伸縮ロッドの全長は、前記固定管の全長よりも長く、前記伸縮ロッドの足場側部分は、前記固定管の管内領域に延入し且つ水平支持ユニットの最短縮時に固定管の足場側端部の開口(33)から足場側に突出し、前記伸縮ロッドの手摺桟側の端部は、前記支持具の溝内空間又は内側空間(25)に延入して該支持具に連結されており、前記固定管の手摺桟側の端部は、水平支持ユニットの最短縮時に前記支持具の溝内空間又は内側空間に延入することを特徴とする仮設手摺用ブラケット。
Temporary handrail bracket (1) installed overhanging temporary scaffolding (S) in order to temporarily install a handrail in an opening or open area of a building or structure (A) under construction. A temporary handrail bracket that supports or bears the handrail bars (7, 8, 9) of the handrail (10) at its tip,
A handrail receiving unit (2) that supports or supports a handrail bar, an upper and lower horizontal support unit (3) that has a telescoping structure, and a construction site attachment unit (4) that can be attached to the construction site (P) of temporary scaffolding. and
The building site attachment unit includes upper and lower metal connectors (41) that are detachably connected to the building site (P) of the temporary scaffolding, and the upper connector has a groove-shaped cross section that is open upward. , L-shaped cross section or box-shaped metal fittings, and the lower connecting tool consists of a groove-shaped cross-sectional metal fitting opening downward, L-shaped cross section or box-shaped metal fittings,
The handrail receiving unit comprises upper and lower metal supports (21) to which the handrail bars are connected, and vertical metal pipes (22) that integrally interconnect the supports. , consisting of metal fittings with a groove-shaped cross section, an L-shaped cross section, or a box-shaped cross section that opens toward the temporary scaffolding,
The horizontal support unit has a substantially horizontally extending fixed tube (31) and a telescopic rod (32), the scaffolding end of the fixed tube is connected to the connector, and the total length of the telescopic rod is , the scaffolding-side portion of the telescopic rod extends into the intra-tube region of the fixed tube and extends from an opening (33) in the scaffold-side end of the fixed tube when the horizontal support unit is at its shortest. The extensible rod protrudes toward the scaffold, and the end of the extensible rod on the side of the railing extends into the space inside the groove or the inner space (25) of the support and is connected to the support, and the handrail of the fixed pipe is connected to the support. A temporary handrail bracket, characterized in that the side ends extend into the grooved or inner space of said support when the horizontal support unit is at its shortest.
施工中の建築物又は構造物(A)の開口部又は開放領域に過渡的に手摺を設置すべく、仮設足場(S)から張り出して設置される仮設手摺用ブラケット(1)であって、仮設手摺(10)の手摺桟(7,8,9)をその先端部で支持又は支承する仮設手摺用ブラケットにおいて、
前記仮設手摺用ブラケットは、手摺桟を支持又は支承する手摺受けユニット(2)と、入れ子式伸縮構造を有する上下の水平支持ユニット(3)と、仮設足場の建地(P)に取付け可能な建地取付けユニット(4)とから構成され、
前記手摺受けユニットは、上下の前記水平支持ユニットの伸縮ロッドの足場側端部に夫々連結された上下の金属製支持具(21)と、該支持具を一体的に相互連結する金属製の縦管(22)と、前記支持具の上面に一体的且つ上向きに突設された円形断面の金属製短柱(11)と、該短柱が貫通し又は挿入され、前記支持具の上面および前記短柱の外周面によって支持又は支承された円筒形の短管(12)とを有し、
該短管は、楔緊結式の係合手段(92,93)を両端部に有する前記手摺桟(9)を前記短管に楔結合又は楔緊結することにより、隣り合う前記ブラケットの間に前記手摺桟を架設すべく、前記手摺桟の係合手段に楔結合又は楔緊結可能な楔緊結式の緊結部(16,17)を有することを特徴とする仮設手摺用ブラケット。
Temporary handrail bracket (1) installed overhanging temporary scaffolding (S) in order to temporarily install a handrail in an opening or open area of a building or structure (A) under construction. A temporary handrail bracket that supports or bears the handrail bars (7, 8, 9) of the handrail (10) at its tip,
The temporary handrail bracket includes a handrail receiving unit (2) that supports or bears the handrail bar, upper and lower horizontal support units (3) that have a telescoping structure, and can be attached to the construction site (P) of the temporary scaffolding. It consists of a construction site installation unit (4),
The handrail receiving unit consists of upper and lower metal supports (21) respectively connected to the ends of the telescopic rods of the upper and lower horizontal support units on the scaffold side, and a metal vertical support that integrally interconnects the supports. A pipe (22), a metal stub (11) with a circular cross section integrally protruding upward from the upper surface of the support, and the short pillar penetrates or is inserted into the upper surface of the support and the a short cylindrical pipe (12) supported or supported by the outer circumference of the short post;
The short pipe is connected between the adjacent brackets by wedging or wedge-tying the handrail bar (9) having wedge-tying engagement means (92, 93) at both ends to the short pipe. A temporary handrail bracket, characterized in that it has a wedge connection or a wedge connection type binding part (16, 17) capable of wedge connection or wedge connection to the engaging means of the handrail bar so as to erect the handrail bar.
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