JP5342276B2

JP5342276B2 - Leading handrail

Info

Publication number: JP5342276B2
Application number: JP2009044156A
Authority: JP
Inventors: 辰雄小野
Original assignee: 辰雄小野
Priority date: 2009-02-26
Filing date: 2009-02-26
Publication date: 2013-11-13
Anticipated expiration: 2029-02-26
Also published as: JP2010196403A

Abstract

<P>PROBLEM TO BE SOLVED: To provide a preceding handrail which is installable on a framework scaffold and does not cause problem even if used as a master rope after the installation. <P>SOLUTION: This preceding handrail includes handrail frames 10 each formed integrally of a pair of right and left vertical members 11 and a handrail for joining the upper ends of the right and left vertical members 11. The handrail frame 10 is joined to adjacent right and left erected frames 1 with a locking device 20 to be disconnected from each other. The preceding handrail is separably connected with fixing devices 30 and connecting devices 40. The locking device 20 has a hook part 21 which extends from the base end thereof welded to the vertical member 11 and is engaged with the lateral rod 3 of the erected frame 1 from above. The fixing device 30 has a holding part 31 which extends from the base end thereof welded to the vertical member 11, is positioned adjacent to the pier stud 2 of the erected frame 1 from the side, and holds the pier stud 2 in a wedge structure. The connecting device 40 has a joining part 42 which extends from the base end 41 thereof held by the vertical member 11, is joined to the pier stud 2 of a newly connected upper erected frame 1 from the side, and is joined to the pier stud 2 in a fixed structure. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

この発明は、先行手摺に関し、特に、枠組足場に設けられる先行手摺の改良に関する。 The present invention relates to a leading handrail, and more particularly to an improvement of a leading handrail provided in a frame scaffold.

建築物を建築するための作業現場、すなわち、建築現場には、多くの場合に、仮設施設たる作業用の足場、つまり、作業足場が設けられるが、この作業足場が枠組足場からなる場合に、この枠組足場に立ち入る、たとえば、作業員の安全を確保するための手摺が設けられる。 A work site for building a building, i.e., a building site, is often provided with a scaffold for work as a temporary facility, i.e., a work scaffold. For example, a handrail is provided for entering the framework scaffold, for example, for ensuring the safety of workers.

この枠組足場に設けられる手摺は、その機能するところを鑑みると、作業員がその手摺を設ける階たる上方階に立ち入る前に、何にも況して、上方階に設けられる、すなわち、先行して設けられる、つまり、先行手摺とされることに意義がある。 In view of its function, the handrails provided in this framework scaffold are provided on the upper floor before the worker enters the upper floor, which is the floor on which the handrail is provided, that is, provided in advance. It is meaningful to be a leading handrail.

そして、この先行手摺については、これまでに種々の提案があるが、その中で、たとえば、特許文献１には、作業足場を構成する枠組足場に組み付けられる先行手摺の提案が開示されている。 There have been various proposals for the preceding handrail so far. Among them, for example, Patent Document 1 discloses a proposal for a preceding handrail to be assembled to a frame scaffold that constitutes a work scaffold.

ちなみに、枠組足場は、特許文献１にも開示されているように、概ね門型に形成された建枠を建築物の外壁に沿うように左右に連続して下方階を形成すると共に、この下方階の上方に新たに建枠を建て込んで、すなわち、組み上げて、上方階を形成し、言わば立体的に組み上げられる。 Incidentally, as disclosed in Patent Document 1, the frame scaffold forms a lower floor continuously on the left and right along the outer wall of the building, and the lower floor is formed along the outer wall of the building. A new building frame is built above the floor, that is, it is assembled to form an upper floor, which is a three-dimensional assembly.

そして、先行手摺は、建枠における脚柱、つまり、左右の脚柱に並行する左右の縦材と、この左右の縦材の上端を繋ぐ手摺と、この手摺の下方にあってこの手摺に並行しながら左右の縦材における上下方向の中間部に連結される中桟とを有して一体に形成される手摺枠を有してなる。 The leading handrail is a pedestal in the building frame, that is, left and right vertical members parallel to the left and right pedestals, a handrail connecting the upper ends of the left and right vertical members, and below this handrail and parallel to this handrail. On the other hand, it has a handrail frame formed integrally with an intermediate rail connected to an intermediate portion in the vertical direction of the left and right vertical members.

そして、この手摺枠は、建枠における脚柱の上端部寄りに連結される取付金具を縦材の下端部に有すると共に、建枠における横杆に連繋する位置決め金具を縦材の上下方向の中間部であってやや下端部寄りに有し、縦材の上端側部たる手摺の下方部分には、爾後に上方階に新たに建て込まれる建枠における脚柱の下端側部に連結される上部固定金具を有している。 And this handrail frame has a mounting bracket connected to the lower end portion of the vertical member at the lower end portion of the vertical member in the building frame, and a positioning bracket connected to the reed in the building frame in the middle in the vertical direction of the vertical member. The upper part connected to the lower end side part of the pedestal in the building frame newly built on the upper floor in the lower part of the handrail which is a part and slightly closer to the lower end part and is the upper end side part of the vertical member It has a fixture.

それゆえ、この特許文献１に開示の提案にあっては、作業員は、自己が立ち入っている階から、未だ新たな建枠が建て込まれていない上方階に向けて、手摺枠を持ち上げ、この状態下に、位置決め金具を横杆に連繋して手摺枠を建枠に言わば一旦預け、この状態から、取付金具を脚柱に連結することで、手摺枠を枠組足場に連結して先行手摺とし得る。 Therefore, in the proposal disclosed in Patent Document 1, the worker lifts the handrail frame from the floor where he / she enters to the upper floor where a new building frame is not yet built, Under this condition, the positioning brackets are linked to the side and the handrail frame is temporarily stored in the building frame. From this state, the mounting bracket is connected to the pedestal so that the handrail frame is connected to the frame scaffolding and the preceding handrail is connected. It can be.

そして、上方階を形成すべく新たに建て込まれる建枠における脚柱の下端側部に手摺枠における上部固定金具が連結されて、最終的に先行手摺が枠組足場における上方階に設けられる。 Then, the lower end side of pedestal in Kenwaku that Tatekoma newly to form an upper floor are connected the upper fixing fitting in the handrail frame, eventually leading handrail is provided above floor definitive framework scaffold.

特許第２５９４５３０号公報(請求項１,図１,図２,図３参照)Japanese Patent No. 2594530 (refer to claims 1, 1, 2, and 3)

しかしながら、上記した特許文献１に開示の提案にあっては、作業足場を形成する枠組足場において、下方階から上方階に向けて先行手摺を設け得る点で基本的に問題がある訳ではないが、その先行手摺が利用される実際を勘案すると、更なる要望がある。 However, in the proposal disclosed in Patent Document 1 described above, in the framework scaffold forming the work scaffold, there is basically no problem in that a leading handrail can be provided from the lower floor to the upper floor. Considering the fact that the handrail is used, there is a further demand.

すなわち、凡そこの種の先行手摺にあっては、これが適正に上方階に設けられる場合には、爾後の作業員による諸作業の際に、この先行手摺における手摺が命綱の親綱、すなわち、命綱の引っ掛け先代わりとされるのは経験側が示す通りである。 In other words, in the case of an ordinary handrail of the kind, if this is properly provided on the upper floor, the handrail in the preceding handrail becomes a lifeline parent line , that is, a lifeline, when performing various operations by a post-worker. As the experience point shows, it is used as a substitute for the hook .

つまり、建築現場などで高所作業をする作業員は、命綱を利用するが、このとき、作業員の腰などに基端が連結されている命綱の先端は、適宜に設けられた親綱に、すなわち、作業足場にあっては、先行手摺における手摺に繋がれる。 In other words, workers who work at heights at construction sites use lifelines, but at this time, the tip of the lifeline whose proximal end is connected to the waist of the worker, etc. is attached to the master rope provided appropriately. , i.e., in the work scaffolding, it is coupled to the definitive the preceding handrail handrail.

このことからすると、先行手摺は、下方階の作業足場を形成する建枠に対してはもちろんのこと、爾後に下方階の建枠に新たに建て込まれて上方階の作業足場を形成する建枠に対しても言わば強固に連結されるのが好ましい。 Based on this, not only the building frame that forms the work platform on the lower floor, but also the building that forms the work platform on the upper floor after being newly built in the building frame on the lower floor. It is preferable that the frame is firmly connected to the frame.

この発明は、上記した事情を鑑みて創案されたものであって、その目的とするところは、枠組足場への設置を可能にするのはもちろんのこと、爾後に親綱代わりとされても、問題を発生しない先行手摺を提供することである。 This invention was invented in view of the above circumstances, and its purpose is not only to enable installation on a frame scaffold, It is to provide a handrail that does not cause problems.

上記した目的を達成するため、この発明による先行手摺の構成を、左右で一対となる縦材と、この左右の縦材の上端を繋ぐ手摺と有して一体に形成される手摺枠を有すると共に、この手摺枠が左右となって近隣する建枠に係止具で分離可能に連繋されると共に固定具および連結具で分離可能に連結されてなる先行手摺にあって、上記係止具が上記縦材における上下方向の中間部であってやや下端部寄りに連結されながら上記建枠における横杆に連繋され、上記固定具が上記縦材における下端部に連結されながら上記建枠における脚柱の上端部寄りに連結され、上記連結具が上記縦材における上端側部に保持されながら上記脚柱に新たに連結される上方の脚柱における下端側部に連結されると共に、上記係止具が上記縦材に溶接される基端から延びて上記建枠における横杆に上方から係合するフック部を有し、上記固定具が上記縦材に溶接される基端から延びて上記建枠における脚柱に横方向から近隣すると共にこの脚柱を楔構造下に包持する包持部を有し、上記連結具が上記縦材に保持される基端部から延びて上記新たに連結される上方の建枠における脚柱に横方向から近隣すると共にこの脚柱に固定構造下に連繋する連繋部を有し、この連繋部が先端側円弧部と後端側円弧部とを有して平面視でＣ字状あるいは半円弧状の基本形状を有すると共に、上記先端側円弧部および後端側円弧部で形成される円弧の中間部に上記先端側円弧部の上記後端側円弧部に対する折り畳みを可能にすると共に上記先端側円弧部の上記後端側円弧部に対する回動を阻止する枢着部を有してなるとする。 In order to achieve the above-described object, the structure of the preceding handrail according to the present invention has a handrail frame formed integrally with a pair of vertical members on the left and right and a handrail connecting the upper ends of the left and right vertical members. , in the prior handrail this handrail frame is formed by detachably connected by fasteners and coupling with the separably interlocking with the locking member close to Kenwaku become right, the locking member is the while being connected to the slightly lower end toward an intermediate portion of the vertical direction of the longitudinal member are interlocking in the horizontal rod in the Kenwaku, said fixture is pedestal in the Kenwaku while being connected to the lower end of the longitudinal member It is connected to an upper end portion closer together with the connector is connected to the lower end side portion above the pedestal to be newly connected to the pedestal while being held on the upper end side in the longitudinal member, the locking member is from the base end to be welded to the longitudinal member It has a hook portion which engages from above the horizontal rod in the Activity above Kenwaku, this together with the fixture to close the laterally pedestal in the Kenwaku extending from a proximal end to be welded to the longitudinal member have embraced portion to embracing the pillar under the wedge structure, laterally pedestal above the Kenwaku which the connector is the newly consolidated extends from the proximal end to be held in the longitudinal member And a connecting portion connected to the pedestal under a fixed structure, and the connecting portion has a front end side arc portion and a rear end side arc portion, and is C-shaped or semi-arc shaped in plan view. The front end side arc part has a basic shape and enables folding of the front end side arc part with respect to the rear end side arc part at an intermediate part of the arc formed by the front end side arc part and the rear end side arc part. to become a pivot point to prevent rotation relative to the rear side arc portion

それゆえ、この発明の先行手摺を枠組足場に設けるの際に、作業員は、自己が立ち入っている階から、未だ新たな建枠が建て込まれていない上方階に向けて、手摺枠を持ち上げ、この状態下に、係止具を建枠における横杆に係合させ得る。 Therefore, when the preceding handrail of the present invention is provided on the frame scaffolding, the worker lifts the handrail frame from the floor where he / she enters to the upper floor where a new building frame has not yet been built. Under this condition, the locking tool can be engaged with the reed on the building frame.

したがって、これによって、手摺枠が建枠に言わば一旦預けられることになり、後述する爾後の作業員による固定具の連結作業を容易ならしめるが、このとき、係止具が建枠における横杆に係合するから、一対の縦材と手摺とで形成される面に沿う方向に、すなわち、枠組足場における建枠が連続する左右方向たる横方向への移動が阻止されて、言わば確実な設置状態の具現を可能にする。
このとき、係止具は、建枠における横杆に上方から係合するから、建枠における横杆に、たとえば、下方向から係合する場合に比較して、手摺枠を枠組足場に連結する作業を容易にする。 Therefore, Thus, the handrail frame will be used so to speak temporarily deposited in Kenwaku, but makes it easier to coupling operation of the fastener by workers subsequent to be described later, this time, the locking member is next rod in Kenwaku Since it is engaged, movement in the lateral direction, which is the horizontal direction in which the building frame in the frame scaffolding is continuous, is prevented in a direction along the plane formed by the pair of vertical members and handrails, so to say, a reliable installation state Can be realized.
At this time, since the locking tool engages with the recumbent in the building frame from above, the handrail frame is connected to the frame scaffolding as compared with the case where it engages with the recumbent in the building frame, for example, from below. Make work easier.

そして、この手摺枠を建枠に言わば一旦預けた状態下に固定具を建枠における脚柱に包持部を楔構造下に包持させるから、縦材が一対の脚柱と横杆とで形成される面、すなわち、建枠の面に沿う方向たる建築物の壁面に対して遠近する方向への移動および手摺枠の面に沿う方向たる横方向の移動が阻止されて、同じく確実な設置状態の具現を可能にする。 Then, when this handrail frame is put into the building frame, the fixing member is held by the pedestal in the building frame under the wedge structure under the condition that the handrail frame is once deposited. Similarly, the installation is prevented by preventing movement in the direction far from the wall surface of the building, which is the direction along the surface of the building frame, and lateral movement along the surface of the handrail frame. Enables the realization of the state.

そしてまた、上方階を形成すべく下方階を形成する建枠の上端に新たに建て込まれる建枠における脚柱の下端側部に連結具が連結されることで、先行手摺が枠組足場に確実に設けられる。 In addition , a connecting tool is connected to the lower side of the pedestal in the building frame that is newly built at the upper end of the building frame that forms the upper floor to form the upper floor, so that the leading handrail can be securely attached to the frame scaffolding. Is provided.

このとき、連結具は、縦材に保持される基端部から延びて新たに連結される上方の脚柱に近隣する連繋部を有すると共に、この連繋部が固定構造に形成されるから、手摺枠の面に沿う方向たる横方向の移動が阻止され、最終的に先行手摺を枠組足場に強固に設けることを可能にし、たとえば、作業員に基端が連結される命綱の先端を手摺枠における手摺を親綱代わりにして連結しても、安全性が保障される。 At this time, the connecting tool has a connecting portion adjacent to the upper pedestal that extends from the base end portion held by the vertical member and is newly connected, and the connecting portion is formed in a fixed structure. Lateral movement along the plane of the frame is prevented, and it is finally possible to firmly provide a leading handrail on the frame scaffolding. For example, the tip of a lifeline to which the base end is connected to the worker is attached to the handrail frame. Even if the handrail is connected instead of the parent rope, safety is guaranteed.

この発明による先行手摺が設けられた状態の枠組足場を示す概略斜視図である。It is a schematic perspective view which shows the frame scaffold in the state in which the prior handrail by this invention was provided. この発明による先行手摺を構成する手摺枠を係止具，固定具および連結具を介して枠組足場に連結した状態を示す正面図である。It is a front view which shows the state which connected the handrail frame which comprises the prior | preceding handrail by this invention to the frame scaffold through the latching tool, the fixing tool, and the connection tool. 係止具，固定具および連結具の手摺枠における配置状態を示す部分斜視図である。It is a fragmentary perspective view which shows the arrangement | positioning state in the handrail frame of a locking tool, a fixing tool, and a connection tool. 係止具を示す拡大部分斜視図である。It is an expansion partial perspective view which shows a locking tool. 固定具を示す拡大部分斜視図ある。It is an expansion partial perspective view which shows a fixing tool. 連結具を示す拡大部分斜視図ある。It is an expansion partial perspective view which shows a coupling tool.

以下に、図示した実施形態に基づいて、この発明を説明するが、この発明による先行手摺は、建築物を建築するための作業現場、すなわち、建築現場に設けられる仮設施設たる作業用の足場、つまり、作業員などが立ち入る作業足場を形成する枠組足場に設けられる。 Hereinafter, the present invention will be described on the basis of the illustrated embodiment. The preceding handrail according to the present invention is a work site for constructing a building, that is, a scaffold for work as a temporary facility provided at the building site, That is, it is provided in a framework scaffold that forms a work scaffold for workers to enter.

すなわち、先ず、枠組足場は、図１に示すように、概ね門型に形成された建枠１、すなわち、柱たる脚柱２と梁たる横杆３とで門型に形成の建枠１を筋交４さらには要する場合に足場板５（図２参照）の利用下に連結して爾後に建築されるあるいは既存の建築物Ａの外壁に沿うように左右に連続して下方階を形成すると共に、この図１中には図示しないが、下方階を形成する建枠１の上方に新たに建枠１を建て込んで、すなわち、組み上げて、同じく筋交４さらには足場板５を利用して上方階を形成し、言わば立体的に組み上げられる。 That is, first, as shown in FIG. 1, the frame scaffold has a building frame 1 generally formed in a gate shape, that is, a building frame 1 formed in a gate shape with a pillar 2 as a column and a horizontal beam 3 as a beam. Bracing 4 Furthermore, if necessary, it is connected under the use of the scaffolding plate 5 (see FIG. 2) and is constructed after the heeling, or the lower floor is formed continuously from side to side so as to follow the outer wall of the existing building A In addition, although not shown in FIG. 1, the building frame 1 is newly built above the building frame 1 forming the lower floor, that is, assembled, and the bracing 4 and the scaffold board 5 are also used. The upper floor is formed, so to speak, it is assembled in three dimensions.

ところで、作業足場は、上記の枠組足場以外に図示しない単管足場によっても形成されるが、この単管足場にあっては、柱材が縦パイプで形成されるから、この縦パイプを建枠１における脚柱２に見立てれば、また、梁材が横パイプで形成されるから、この横パイプを建枠１における横杆３に見立てれば、この発明による先行手摺を設けることが可能になる、つまり、この発明の先行手摺は、例示する枠組足場だけでなく、単管足場でも利用可能である。 By the way, the work scaffold is also formed by a single pipe scaffold (not shown) other than the above-mentioned frame scaffold, but in this single pipe scaffold, the column material is formed by a vertical pipe. If it is considered to be the pedestal 2 in 1, and the beam material is formed by a horizontal pipe, if this horizontal pipe is considered to be the horizontal fence 3 in the building frame 1, it is possible to provide the leading handrail according to the present invention. That is, the preceding handrail of the present invention can be used not only for the frame scaffold illustrated but also for the single pipe scaffold.

ちなみに、枠組足場にあって、言わば左右となる建枠１に筋交４および足場板５を連結することで、整列する一対の建枠１，１間における建枠１の整列方向への、すなわち、建築物Ａの外壁に沿う方向たる左右となる横方向への倒れが阻止される。 Incidentally, in the framework scaffolding, so to speak by the Kenwaku 1 comprising left and right connecting braces 4 and anchorage plate 5, in the direction of alignment Kenwaku 1 between a pair of Kenwaku 1,1 aligned, i.e. The fall to the horizontal direction which becomes the right and left which is the direction along the outer wall of the building A is prevented.

なお、枠組足場における筋交４の配設は、枠組足場の成立の上で重要な要素になるが、この発明の先行手摺が枠組足場に設けられる実際を鑑みると、後述するが、この先行手摺が上記の筋交４と同等の機能を果すとも言え、その限りにおいて、枠組足場において、この先行手摺を有する面からの筋交４の撤去を可能にし得る利点がある。 Note that the disposed the braces 4 in the framework scaffolding, becomes an important factor in the establishment of the framework scaffolding, in view of the actual leading handrail of the invention is provided in the framework scaffolding, as will be described later, this prior handrail Can be said to perform the same function as the bracing 4 described above, and in that case, there is an advantage that the bracing 4 can be removed from the surface having the preceding handrail in the frame scaffold.

また、図示する枠組足場にあっては、下方階が地面（符示せず）に直接立設されるから、各建枠１は、地面上に敷設される基礎たる敷桁Ｂ上に基準高さの高低調整を可能にするジャッキベースＪの介在下に立設され、また、左右方向に整列する各建枠１における下端部は、根絡みパイプＰで一体的に連結されて、いわゆる左右方向への位置ずれが阻止されている。 Moreover, in the frame scaffold shown in the figure, the lower floor is directly erected on the ground (not shown), so that each building frame 1 has a reference height above the foundation span girder B laid on the ground. The lower end portions of the building frames 1 that are erected under the jack base J that enables the height adjustment of the building frame and that are aligned in the left-right direction are integrally connected by a root tangle pipe P, so-called left - right direction. positional deviation of is prevented.

つぎに、図２は、この発明による先行手摺が枠組足場に設けられた、すなわち、連結された状態を示すが、図示するところは、枠組足場からなる作業足場の外から建築物Ａの外壁を見る視線となる先行手摺の正面図を示し、したがって、建枠１における横杆３は、図中で、建枠１における脚柱２の裏に隠れる。 Next, FIG. 2 shows a state in which the leading handrail according to the present invention is provided on the frame scaffold, that is, in a connected state. However, the illustration shows the outer wall of the building A from the outside of the work scaffold composed of the frame scaffold. The front view of the preceding handrail used as a line of sight to be seen is shown, and therefore the horizontal fence 3 in the building frame 1 is hidden behind the pedestal 2 in the building frame 1 in the drawing.

そこで、この図２に基づいて、この先行手摺について説明すると、この先行手摺は、手摺枠１０が左右となって近隣する建枠１，１に係止具２０，２０で分離可能に連繋されると共に固定具３０，３０および連結具４０，４０で分離可能に連結されて、上記の枠組足場に設けられる。 Accordingly, the preceding handrail will be described with reference to FIG. 2. The preceding handrail is connected to the adjacent building frames 1 and 1 with the handrail frame 10 on the left and right sides so as to be separable by the locking tools 20 and 20. At the same time, it is connected to the fixing scaffolds 30 and 30 and the couplers 40 and 40 so as to be separable, and is provided in the frame scaffold.

すなわち、手摺枠１０は、左右で一対となる縦材１１，１１と、この左右の縦材１１，１１の上端を繋ぐ手摺１２と、この手摺１２の下方にあってこの手摺１２に並行しながら左右の縦杆１１，１１における上下方向の中間部に連結される中桟１３とを一体に有して形成され、作業員Ｍ（図１参照）が手摺１２を把持して吊持することを可能にし、また、作業員Ｍが縦杆１１の下端部を把持して持ち上げることを可能にしている（図１参照）。 That is, the handrail frame 10 includes a pair of vertical members 11, 11 on the left and right sides, a handrail 12 that connects the upper ends of the left and right vertical members 11, 11, and a lower side of the handrail 12, in parallel with the handrail 12. It is formed integrally with an intermediate rail 13 connected to an intermediate portion in the vertical direction of the left and right vertical shafts 11, 11, and a worker M (see FIG. 1) holds and holds the handrail 12. In addition, the worker M can grasp and lift the lower end portion of the downarm 11 (see FIG. 1).

ちなみに、この手摺枠１０を形成する縦材１１，手摺１２および中桟１３については、図示するところでは、たとえば、アルミ材の丸パイプからなるが、この発明が意図するところからすれば、アルミ材の角パイプからなるとしても良く、さらに、アルミ材に代えて、鉄材からなることを妨げないのはもちろんである。 Incidentally, the vertical member 11, the handrail 12 and the intermediate rail 13 which form the handrail frame 10 are made of, for example, a round pipe made of an aluminum material. However, according to the intention of the present invention, an aluminum material is used. Of course, it may be made of a square pipe, and it is of course not disturbed to be made of iron instead of aluminum.

そして、図示する手摺枠１０において、縦材１１における下端部に上記の中桟１３に並行するように連結される桟部材、つまり、下桟１４を有し、また、中桟１３と下桟１４とを繋ぐ繋ぎ材１５，１５を有してなるが、この下桟１４および繋ぎ材１５の配設については、これが省略されても良い。 The handrail frame 10 shown in the figure has a crosspiece member, that is, a lower crosspiece 14 connected to the lower end portion of the vertical member 11 so as to be parallel to the above-described middle crosspiece 13. However, the arrangement of the lower rail 14 and the connecting material 15 may be omitted.

ただ、この下桟１４および繋ぎ材１５を有する場合には、手摺枠１０における機械的強度を大きくするのはもちろんだが、作業員Ｍがこの手摺枠１０の下端部を把持して持ち上げるようにする際のいわゆる把持部を増やし、作業性を良くする利点がある。 However, when the lower rail 14 and the connecting material 15 are provided, not only the mechanical strength of the handrail frame 10 is increased, but also the worker M grips and lifts the lower end portion of the handrail frame 10. There is an advantage that the so-called gripping portion is increased and workability is improved.

また、図示する手摺枠１０にあっては、爪先板１６を有するが、凡そこの種の枠組足場からなる作業足場にあっては、足場板５を左右の建枠１における横杆３に架設して、作業員Ｍのいわゆる足場を形成すると共に、この足場から工具などが下方に落下しないようにする爪先板１６が設けられるのが常態である。 In addition, the handrail frame 10 shown in the figure has a toe plate 16, but in a work scaffold composed of a frame scaffold of the kind, the scaffold plate 5 is installed on the horizontal fence 3 in the left and right building frames 1. In addition, a so-called scaffold for the worker M is formed, and a toe plate 16 that prevents a tool or the like from dropping downward from the scaffold is normally provided.

そこで、図示する実施形態にあっては、手摺枠１０が爪先板１６を有するとしたが、この発明の先行手摺の成立にあっては、この爪先板１６が構成要件にならないのはもちろんである。 Thus, in the illustrated embodiment, the handrail frame 10 has the toe plate 16. However, the toe plate 16 is not a constituent element in the formation of the preceding handrail of the present invention. .

ちなみに、爪先板１６の構造であるが、図示するところでは、左右部が手摺枠１０における左右の縦材１１に溶接されてなるが、その他の連結構造、たとえば、ブラケットを利用するなどによる分離可能な連結構造下に左右の縦材１１に、あるいは、建枠１における横杆３に架設されるとしても良い。 Incidentally, although the structure of the toe plate 16 is shown, the left and right portions are welded to the left and right vertical members 11 in the handrail frame 10, but can be separated by using other connection structures such as brackets. It may be constructed on the left and right vertical members 11 under a simple connecting structure, or on the horizontal fence 3 in the building frame 1.

そして、この爪先板１６は、図示しないが、言わば本体部たる板部の背面たる内側面に、ここで起伏する隙間塞ぎ板を有し、この隙間塞ぎ板を倒すことで、足場板５と爪先板１６との間に出現する隙間を塞ぎ、この隙間があるがゆえに、作業員が隙間に足を落すような事故の発生を未然に防ぎ、また、隙間からの物の落下を防ぐことが可能になり、言わば有効な保安対策あるいは安全対策となる。 The toe plate 16 has a gap closing plate that undulates on the inner surface, which is the back side of the plate portion, which is the main body, although not shown in the figure, and by defeating the gap closing plate, the scaffold plate 5 and the toe The gap that appears between the board 16 is closed, and this gap prevents the occurrence of accidents such as an operator dropping his / her foot into the gap, and also prevents objects from falling through the gap. It becomes effective security measures or safety measures .

一方、上記した手摺枠１０における手摺１２についてだが、この発明の先行手摺にあっては、これが枠組足場に固定的に設けられる場合には、前記したようにこの手摺１２が作業員Ｍに連結される命綱Ｒ（図１参照）の引掛け先となる親綱代わりとされるのは経験側が示す通りである。 On the other hand, it will handrail 12 in the handrail frame 10 described above but, in the preceding handrail of the present invention, this is when fixedly provided on the framework scaffolding, the handrail 12 is connected to the worker M as described above As shown by the experience side, the lifeline R (see FIG. 1) to be used as a substitute for the masterline is a substitute for the parent line.

この親綱代わりとされることからすると、手摺１２は、原理的には、縦材１１と中桟１３とで形成される面内に位置決められていても良いが、図１中に示すように、作業員Ｍに連結される命綱Ｒを連結させるスライダ１７が手摺１２に介装される場合には、このスライダ１７の自由な往復動、すなわち、隣設する手摺枠１０における手摺１２間をいわゆる渡り歩けるようにすることが望ましい。 As a substitute for this master rope, in principle, the handrail 12 may be positioned in a plane formed by the longitudinal member 11 and the intermediate rail 13, but as shown in FIG. When the slider 17 for connecting the lifeline R connected to the worker M is interposed in the handrail 12, the slider 17 freely reciprocates, that is, between the handrails 12 in the handrail frame 10 provided adjacently. It is desirable to be able to walk around.

このスライダ１７が隣設する手摺１２間を渡り歩くことを考慮すると、手摺１２については、これが縦材１１と中桟１３とで形成される面内に位置決められずして、縦材１１の上端部が作業足場内に向けて折り曲げられて、枠組足場からなる作業足場内に位置決められる、すなわち、図２に示すところでは、手前側に偏芯するように位置決められて、移動するスライダ１７が建枠１の脚柱２に干渉し得ないようにするのが良い。 Considering that the slider 17 walks between the adjacent handrails 12, the handrail 12 is not positioned in the plane formed by the longitudinal member 11 and the intermediate rail 13, and the upper end portion of the longitudinal member 11 Is bent into the work scaffold and positioned in the work scaffold composed of the frame scaffold, that is, in the position shown in FIG. It is preferable not to interfere with one pedestal 2.

上記したように、この手摺枠１０にあっては、手摺１２が命綱Ｒの引掛け先となる親綱代わりとされるが、この手摺１２を縦材１１の上端に連結するについて、上記したスライダ１７の介装および横方向への円滑な移動を可能にするように、手摺１２がいわゆる曲がりのない水平杆からなる。 As described above, in the handrail frame 10, the handrail 12 is used as a master rope to which the lifeline R is hooked. The slider described above is connected to the upper end of the vertical member 11. The handrail 12 is composed of a so-called bend-free horizontal ridge so as to enable 17 interposition and smooth movement in the lateral direction.

そして、この曲がりのない水平杆からなる手摺１２を縦材１１の上端に連結するについて、縦材１１の上端部を扁平に潰し整形して、すなわち、水平杆における外径より小さくなる薄肉に潰し整形して、スライダ１７が縦材１１の上端部の干渉を受けることなく横方向に、つまり、隣設する手摺枠１０における手摺１２に円滑に移行できるように配慮している。 And about connecting the handrail 12 which consists of this horizontal rod without the bending to the upper end of the vertical member 11, the upper end part of the vertical member 11 is flattened and shaped, that is, it is crushed into a thin wall smaller than the outer diameter of the horizontal rod. It is shaped so that the slider 17 can smoothly move to the handrail 12 in the lateral direction, that is, the handrail frame 10 provided adjacently without receiving the interference of the upper end portion of the vertical member 11.

そのため、手摺１２と縦材１１の扁平に潰し整形された上端部との接合部は、手摺１２にカラビナなどの環状連結具を連繋したときのいわゆるストッパ部になり、たとえば、パイプ体の折り曲げ成形で手摺と縦材が一連に形成されている手摺枠に比較して、上記のカラビナなどの環状連結具が縦材１１に沿って落下する不具合の招来を回避できる。 Therefore, the joint portion between the handrail 12 and the upper end portion of the vertical member 11 that is flattened into a flat shape becomes a so-called stopper portion when an annular coupler such as a carabiner is connected to the handrail 12, for example, a pipe body is bent. Thus, in comparison with a handrail frame in which handrails and vertical members are formed in series, it is possible to avoid the inconvenience of the annular coupler such as the carabiner falling along the vertical member 11.

つぎに、上記の手摺枠１０が有する係止具２０，固定具３０および連結具４０について、以下に説明するが、係止具２０の建枠１における横杆３への連繋状態、固定具３０および連結具４０の建枠１における脚柱２への連結状態は、作業足場の外から見ると、図３に示す外観になる。 Next, the locking tool 20, the fixing tool 30, and the connecting tool 40 included in the handrail frame 10 will be described below. However, the locking tool 20 is connected to the reed 3 in the building frame 1, and the fixing tool 30. And the connection state to the pedestal 2 in the building frame 1 of the connection tool 40 becomes the external appearance shown in FIG. 3 when viewed from outside the work scaffold.

すなわち、この図３に示すところからも解るように、係止具２０は、手摺枠１０における縦材１１の上下方向の中間部であってやや下端部寄りに一体に連結されながら建枠１における横杆３に分離可能に連繋される。 In other words, as can be seen from FIG. 3, the locking tool 20 is in the middle of the vertical member 11 of the handrail frame 10 in the vertical direction, and is connected to the lower end of the vertical frame 11 while being integrally connected. It is connected to the reed 3 in a separable manner.

そして、固定具３０は、手摺枠１０における縦材１１の下端部に一体に連結されながら建枠１における脚柱２の上端部寄りに分離可能に連結され、連結具４０は、手摺枠１０における縦材１１の上端側部に起伏可能に保持されながら言わば下方の脚柱２に新たに連結される言わば上方の脚柱２における下端側部に分離可能に連結される。 The fixing tool 30 is connected to the lower end portion of the vertical member 11 in the handrail frame 10 so as to be separable to the upper end portion of the pedestal 2 in the building frame 1, and the connecting tool 40 is connected to the handrail frame 10. The vertical member 11 is detachably connected to the lower end side portion of the upper pedestal 2 so as to be newly connected to the lower pedestal 2 while being held upright on the upper end side.

これによって、係止具２０は、言わば作業足場内に位置決められるが、固定具３０および連結具４０は、建枠１における脚柱２に沿うように位置決められ、基本的には、手摺枠１０が左右の脚柱１で形成される面内に位置決められる。 Thus, the locking tool 20 is positioned in the work scaffold, so that the fixing tool 30 and the connecting tool 40 are positioned along the pedestal 2 in the building frame 1. It is positioned in the plane formed by the left and right pedestals 1.

そしてまた、これによって、前記した手摺１２の臨在位置についてこれを度外視すると、手摺枠１０が作業足場内に突出するような不具合はなく、また、筋交４を手摺枠１０に沿わせる状態で配設することが可能になる。 In addition, by this, when the present position of the handrail 12 is externally viewed, there is no problem that the handrail frame 10 protrudes into the work scaffold, and the bracing 4 is arranged in a state along the handrail frame 10. It becomes possible to set.

以上のような前提の下に、先ず、係止具２０は、図４に示すように、手摺枠１０の縦材１１に溶接される基端から延びて建枠１の横杆３に上方から係合するいわゆる鉤状に形成のフック部２１を有し、このフック部２１が横杆３をほぼ半分以上を上方から包みこむようにして係合するから、このフック部２１、すなわち、係止具２０は、一対の縦材１１と手摺１２とで形成される手摺枠１０における面に沿う方向、すなわち、図中に矢印Ｘで示す横方向への移動が阻止される。 Under the premise as described above, first, as shown in FIG. 4, the locking tool 20 extends from the base end welded to the vertical member 11 of the handrail frame 10 and extends from above to the horizontal frame 3 of the building frame 1. The hook portion 21 has a hook-like shape that engages with the hook portion 21, and the hook portion 21 engages with the hook 3 so as to wrap almost half or more from above. Is prevented from moving in the direction along the plane of the handrail frame 10 formed by the pair of vertical members 11 and the handrail 12, that is, in the lateral direction indicated by the arrow X in the drawing.

この係止具２０が鉤状に形成されたフック部２１を有して横杆３に係合するがゆえに、この係止具２０を連設させる縦材１１が手摺枠１０における面に沿う方向に移動し得ないことについてだが、前記した特許文献１に開示されている位置決め金具（４）にあっては、上記のフック部２１のような言わば鉤状部を有していない。 Since the locking member 20 has a hook portion 21 formed in a hook shape and engages with the horizontal hook 3, the longitudinal member 11 for continuously connecting the locking member 20 is along the surface of the handrail frame 10. However, the positioning metal fitting (4) disclosed in Patent Document 1 does not have a so-called hook-like portion like the hook portion 21 described above.

それゆえ、上記の位置決め金具（４）にあっては、この発明における係止具２０と同等の作用効果は得られず、したがって、縦材の上記した矢印Ｘで示す方向たる手摺枠における面に沿う方向への移動を阻止できず、先行手摺を確固たる状態に枠組足場に連結できない。 Therefore, in the positioning metal fitting (4), the same effect as that of the locking tool 20 in the present invention cannot be obtained. Therefore, the vertical member has a surface in the handrail frame in the direction indicated by the arrow X. Movement along the direction cannot be prevented, and the leading handrail cannot be firmly connected to the frame scaffold.

それに対して、この発明の先行手摺にあっては、これを枠組足場に連結するとき、上記したように、係止具２０における鉤状に形成のフック部２１が建枠１における横杆３に上方から係合するから縦材１１が手摺枠１０における面に沿う方向たる横方向に移動することを阻止でき、先行手摺を確固たる状態に枠組足場に連結できる。 On the other hand, in the preceding handrail of the present invention, when this is connected to the frame scaffolding, as described above, the hook portion 21 formed in the hook shape in the locking tool 20 is formed on the horizontal fence 3 in the building frame 1. Since the vertical member 11 is engaged from above, the vertical member 11 can be prevented from moving in the lateral direction along the surface of the handrail frame 10, and the preceding handrail can be firmly connected to the frame scaffold.

なお、上記の係止具２０は、これが建枠１における横杆３に上方から係合するから、横杆３上でのいわゆる反対側の係止具２０との競合を回避するために、図示しないが、横方向にずれた状態で縦材１１に連設される。 In addition, since said latching tool 20 engages with the horizontal bar 3 in the building frame 1 from above, in order to avoid competition with the locking tool 20 on the opposite side on the horizontal bar 3 , Although not, it is connected to the vertical member 11 in a state shifted in the horizontal direction.

つぎに、固定具３０は、図５に示すように、縦材１１に溶接される基端から延びて建枠１における脚柱２に作業足場内から横方向に近隣する包持部３１を有し、この包持部３１が建枠１における脚柱２をほぼ半分以上を横方向から包み込む状態に包持する。 Next, as shown in FIG. 5, the fixture 30 has a holding portion 31 that extends from the base end welded to the longitudinal member 11 and is adjacent to the pedestal 2 in the building frame 1 in the lateral direction from the work scaffold. And this holding part 31 holds the pedestal 2 in the building frame 1 in a state of wrapping almost half or more from the lateral direction .

そして、この固定具３０にあっては、包持部３１の開口部（符示せず）に突出する楔３２を有し、この楔３２は、包持部３１が脚柱２を包持している状態のときに、上記の開口部に対向し、包持部３１から脚柱２が抜け出ること、すなわち、包持部３１が脚柱２から離れることを阻止する。 And, in this fixing member 30 has a wedge 32 which protrudes into the opening of the holder-part 31 (not Shimese marks), the wedge 32 is embraced portion 31 by embracing the pedestal 2 In the state of being, it opposes said opening part and prevents that the pedestal 2 pulls out from the holding part 31, ie, prevents the holding part 31 from separating from the pedestal 2 .

このとき、楔３２は、先端部（符示せず）が脚柱２の外周に密接すると共に、後端側が包持部３１に形成の楔孔３１ａを貫通して、楔孔３１ａの内側に密接して、脚柱２の包持部３１内でのガタツキを阻止する。 At this time, the front end portion (not shown) of the wedge 32 is in close contact with the outer periphery of the pedestal 2, and the rear end side penetrates the wedge hole 31 a formed in the holding portion 31 and closely contacts the inside of the wedge hole 31 a. Thus, rattling in the holding portion 31 of the pedestal 2 is prevented.

なお、楔３２は、その先端部に形成の折り曲げ部３２ａが上記の楔孔３１ａを通過し得ないので、これが固定具３０から分離されることはない。 Incidentally, the wedge 32, since the bent portions 32a of the forming at the tip portion can not pass through the aforementioned wedge hole 31a, which will not be separated from the fixture 30.

それゆえ、この固定具３０にあっては、これが建枠１における脚柱２に連結されるときに、いわゆる前後となる一対の脚柱２と横杆３とで形成される建枠１における面に沿う方向、すなわち、図中に矢印Ｙで示す建築物Ａの外壁に直角あるいはほぼ直角に遠近する方向への移動が阻止される。 Therefore, in this fixture 30, when this is connected to the pedestal 2 in the building frame 1, the surface in the building frame 1 formed by a pair of pedestal 2 and recumbent 3 that are so-called front and rear. , That is, movement in a direction perpendicular to or substantially perpendicular to the outer wall of the building A indicated by an arrow Y in the drawing is prevented.

この点に関して、前記した特許文献１に開示されている取付金具（３）にあっては、上記の楔３２を有しないから、この取付金具（３）が建枠における脚柱を横方向から包みこむ状態に包持するとしても、上記の矢印Ｙで示す方向への移動が完全には阻止されず、手摺枠と建枠との間にいわゆるガタが発生する。 In this regard, the mounting bracket (3) disclosed in Patent Document 1 does not have the wedge 32, so that the mounting bracket (3) wraps the pedestal in the building frame from the lateral direction. Even if it is held in a state where it is held in, the movement in the direction indicated by the arrow Y is not completely prevented, and so-called play occurs between the handrail frame and the building frame .

その結果、特許文献１に開示の取付金具（３）にあっては、手摺枠における縦材が建築物Ａの外壁に遠近する方向への移動を阻止できず、先行手摺を確固たる状態に枠組足場に連結できない。 Framework Consequently, in the mounting bracket disclosed in Patent Document 1 (3), it can not be prevented from moving in a direction in which the longitudinal member which definitive the handrail frame is perspective to the outer wall of the building A, the preceding handrail in solid state Cannot be linked to the scaffold.

それに対して、この発明の先行手摺にあっては、これを枠組足場に連結するとき、上記したように、固定具３０が建枠１における脚柱２を包持する包持部３１に対して楔３２を打ち込んで縦材１１が建築物Ａの外壁に遠近する方向に移動することを阻止でき、手摺枠１０、すなわち、先行手摺を確固たる状態に建枠１、すなわち、枠組足場に連結できる。 On the other hand, in the leading handrail of the present invention, when this is connected to the frame scaffolding, as described above, the fixture 30 is against the holding portion 31 that holds the pedestal 2 in the building frame 1. The wedge 32 can be driven to prevent the vertical member 11 from moving in the direction of approaching the outer wall of the building A, and the handrail frame 10, that is, the preceding handrail can be firmly connected to the building frame 1, that is, the frame scaffold.

なお、上記の固定具３０は、これが建枠１における脚柱２に連結するから、脚柱２にあっていわゆる反対側の固定具３０との競合を回避するために、上下方向にずれた状態で縦材１１に連設される。 In addition, since said fixing tool 30 connects with the pedestal 2 in the building frame 1, in order to avoid competition with the fixing tool 30 on the opposite side in the pedestal 2, the state shifted in the up-down direction Is connected to the vertical member 11.

さらに、連結具４０は、図６に示すように、縦材１１に枢着されて保持される基端部４１から延びて下方階を形成する建枠１に新たに連結される上方階のための建枠１における脚柱２に横方向から近隣してこの脚柱２に固定構造下の連繋を可能にする連繋部４２を有してなる。 Further, as shown in FIG. 6, the connector 40 is an upper floor that is newly connected to the building frame 1 that extends from the base end portion 41 that is pivotally held by the longitudinal member 11 and forms the lower floor. The building frame 1 includes a connecting portion 42 that is adjacent to the pedestal 2 from the lateral direction and enables the pedestal 2 to be connected under a fixed structure.

すなわち、この連繋部４２は、これを平面視で見るとＣ字状（あるいは、半円弧状）の基本形状を有しながら、円弧の中間部に枢着部４２ａを有して折り畳み可能に形成されている。 That is, the connecting portion 42 has a C-shaped (or semicircular arc) basic shape when seen in a plan view, and has a pivoting portion 42a at the middle portion of the arc so that it can be folded. Has been.

つまり、図６中に仮想線図で示すように、先端側円弧部４３が上記の枢着部４２ａを介して後端側円弧部４４に対して回動自在とされ、枢着部４２ａが固定部として機能するとき、先端側円弧部４３の回動が阻止される。 That is, as shown in a virtual diagram in FIG. 6 , the front end side arc portion 43 is rotatable with respect to the rear end side arc portion 44 via the above-described pivoting portion 42a, and the pivoting portion 42a is fixed. When functioning as a portion, rotation of the distal end side arc portion 43 is prevented.

このとき、枢着部４２ａは、結果として、先端側円弧部４３の回動の可不可を選択できるものであれば足りるが、この発明にあっては、詳しくは図示しないが、キー構造に構成されている。 At this time, it is sufficient that the pivoting portion 42a can select whether or not the tip side arc portion 43 can be rotated as a result. However , although not shown in detail in the present invention, it is configured in a key structure. Has been.

そして、このキー構造を構成する縦ピン（符示せず）が上方部の横断面形状を矩形にして回転止めを可能にすると共に、下方部が横断面形状を円形にして回転を許容する。 A vertical pin (not shown) constituting the key structure can prevent rotation by making the cross-sectional shape of the upper part rectangular and allow the rotation of the lower part by making the cross-sectional shape circular.

それゆえ、この縦ピンを有する枢着部４２ａにあっては、縦ピンを上昇させると、連繋部４２のいわゆる折り畳みが可能になり、縦ピンを図示するように下降状態に維持する場合には、連繋部４２を折り畳み状態に維持し、あるいは、いわゆる使用状態たる成形状態に維持することが可能になる。 Therefore, in the pivot portion 42a having the vertical pin, when the vertical pin is raised, the so-called folding of the connecting portion 42 becomes possible, and when the vertical pin is maintained in the lowered state as shown in the figure, The connecting portion 42 can be maintained in a folded state, or can be maintained in a molded state that is a so-called use state.

一方、基端部４１は、脚柱２を横方向から包持する二股ブラケット状に形成され、脚柱２を横方向に貫通するピン４５の利用で枢着されて、このピン４５を中心とする起伏を可能にしている。 On the other hand, the base end portion 41 is formed in a bifurcated bracket shape that holds the pedestal 2 from the lateral direction, and is pivotally attached by using a pin 45 penetrating the pedestal 2 in the lateral direction. Makes it possible to make ups and downs.

すなわち、この連結具４０は、この手摺枠１０を下方階の作業足場を形成する建枠１に連結するとき、すなわち、当初は不要であり、爾後に上方階の作業足場を形成する建枠１が下方の建枠１に建て込まれるまでは利用されないこと鑑みて、縦材１１に起立状態で保持されるように、基端部４１に突起からなるストッパ４１ａを有している。 That is, the connecting tool 40 is not necessary when the handrail frame 10 is connected to the building frame 1 that forms the work scaffold on the lower floor, that is, it is unnecessary at the beginning, and the building frame 1 that forms the work scaffold on the upper floor after dredging. In view of the fact that it is not used until it is built in the lower building frame 1, the base end portion 41 has a stopper 41 a made of a protrusion so as to be held upright by the vertical member 11.

ちなみに、この突起からなる一対のストッパ４１ａ間の距離は、縦材１１における外径と同一、あるいは、やや小さくなるように設定される。 Incidentally, the distance between the pair of stoppers 41a made of the protrusions is set to be the same as or slightly smaller than the outer diameter of the longitudinal member 11.

それゆえ、以上のように形成された連結具４０にあっては、連繋部４２が建枠１における脚柱２に横方向から近隣してこの脚柱２に固定構造下に連繋するから、縦材１１が縦材１１と手摺１２とで形成される手摺枠１０における面に沿う方向、すなわち、図中に矢印Ｘで示す方向への移動が阻止される。 Therefore, in the connecting tool 40 formed as described above, the connecting portion 42 is adjacent to the pedestal 2 in the building frame 1 from the lateral direction and is connected to the pedestal 2 under the fixed structure. The material 11 is prevented from moving in the direction along the plane of the handrail frame 10 formed by the vertical material 11 and the handrail 12, that is, in the direction indicated by the arrow X in the drawing.

それに対して、前記した特許文献１に開示されている上部固定金具（５）にあっては、この発明における連結具４０におけるように平面視でＣ字状（あるいは、半円弧状）の基本形状を有する連繋部４２を有しないから、この上部固定金具（５）が建枠における脚柱を横方向から包みこむ状態に包持し得ず、上記の矢印Ｘで示す方向への移動が完全には阻止されず、脚柱２と縦材１１との間、すなわち、手摺枠１０と建枠１との間にいわゆるガタが発生する。 On the other hand, in the upper fixing bracket (5) disclosed in Patent Document 1 described above, the basic shape of a C shape (or a semicircular arc shape) in a plan view as in the connector 40 according to the present invention. The upper fixing bracket (5) cannot embed the pedestal in the building frame from the lateral direction so that the movement in the direction indicated by the arrow X is complete. Is not blocked, and so-called play occurs between the pedestal 2 and the vertical member 11, that is, between the handrail frame 10 and the building frame 1 .

しかし、この発明における連結具４０にあっては、上記したように、平面視でＣ字状（あるいは、半円弧状）の基本形状を有する連繋部４２を有して、縦材１１が建築物Ａの壁面に沿う方向たる横方向に移動し得ないので、手摺枠１０、すなわち、先行手摺を確固たる状態に枠組足場に連結できる。 However, in the connector 40 according to the present invention, as described above, the vertical member 11 has the connecting portion 42 having a C-shaped (or semicircular arc) basic shape in plan view. Since it cannot move in the lateral direction along the wall surface of A, the handrail frame 10, that is, the preceding handrail can be firmly connected to the frame scaffold.

なお、上記した連結具４０にあっても、これが建枠１における脚柱２に連結するから、脚柱２にあっていわゆる反対側の連結具３０との競合を回避するために、上記した固定具３０と同様に、上下方向にずれた状態で縦材１１に連設される。 In addition, even if it exists in the above-mentioned connecting tool 40, since this connects with the pedestal 2 in the building frame 1, in order to avoid the competition with the connecting tool 30 of the so-called opposite side in the pedestal 2, it is fixed as described above. Similar to the tool 30, it is connected to the longitudinal member 11 in a state shifted in the vertical direction.

以上のように形成の手摺枠１０にあっては、先行手摺を枠組足場に設けるの際して、作業員Ｍがその立ち入っている言わば下方階から未だ新たな建枠が建て込まれていない言わば上方階に向けて、持ち上げることを可能にする。 In the handrail frame 10 of formed as described above, prior handrail on the occasion of providing the framework scaffolding, not Tatekoma are still new Kenwaku from it were lower floor worker M is intrusive that speak Allows to be lifted towards the upper floor.

このとき、多くの場合に、作業員Ｍは、図１にも示すように、手摺枠１０における縦材１１の下端部を把持するようにして持ち上げるが、図示する手摺枠１０にあっては、下桟１４や繋ぎ材１５さらには爪先板１６を有して言わば頑丈に形成されているから、この持ち上げ作業中に手摺枠１０がいたずらに撓むようなこともなく、作業性が低下されない。 At this time, in many cases, as shown in FIG. 1, the worker M lifts the handrail frame 10 so as to grasp the lower end portion of the vertical member 11, but the handrail frame 10 illustrated in FIG. Since the lower rail 14, the connecting material 15, and the toe plate 16 are formed so as to be sturdy, the handrail frame 10 is not bent unnecessarily during the lifting operation, and workability is not deteriorated.

そして、所定の高さ位置まで持ち上げられた手摺枠１０にあっては、係止具２０を建枠１における横杆３に係合させることで、これを建枠１に言わば一旦預けることが可能になり、爾後の作業性を良くする。 And in the handrail frame 10 lifted to a predetermined height position, it can be temporarily stored in the building frame 1 by engaging the latching tool 20 with the horizontal frame 3 in the building frame 1. And improve workability after dredging.

そして、手摺枠１０が一旦建枠１に預けられた状態では、作業員Ｍは、手摺枠１０から手を離さないまでも、自己の体勢を整えることが可能になり、安全を期して作業を続行できる。 When the handrail frame 10 is once deposited in the building frame 1, the worker M can prepare his / her posture without taking his / her hand off the handrail frame 10, and works for safety. You can continue.

そしてまた、この手摺枠１０を建枠１に言わば一旦預けた状態下に固定具３０を建枠１における脚柱２に連結できるから、この固定具３０の連結作業を確実に実行でき、また、この固定具３０による手摺枠１０の建枠１における脚柱２への連結が確実になる。 Moreover, since the handrail frame 10 can be connected to the pedestal 2 in the building frame 1 in a state where the handrail frame 10 is once deposited in the building frame 1, the connecting work of the fixing device 30 can be reliably executed, Connection of the handrail frame 10 to the pedestal 2 in the building frame 1 by the fixing tool 30 is ensured.

そして、上方階を形成すべく下方階を形成する建枠１の上端に新たに建て込まれる建枠１における脚柱２の下端側部に連結具４０が固定構造下に連結されることで、最終的に先行手摺が枠組足場に強固に設けられ、たとえば、作業員Ｍに基端が連結される命綱Ｒの先端を手摺枠１０における手摺１２を親綱代わりにして連結しても、安全性が保障される。 And by connecting the connecting tool 40 under the fixed structure to the lower end side part of the pillar 2 in the building frame 1 newly built at the upper end of the building frame 1 that forms the lower floor to form the upper floor, Finally, the preceding handrail is firmly provided on the frame scaffold. For example, even if the front end of the lifeline R whose base end is connected to the worker M is connected using the handrail 12 in the handrail frame 10 instead of the master rope, the safety is ensured. Is guaranteed.

ところで、この発明による先行手摺を枠組足場に設けるについて、図示する手摺枠１０にあっては、固定具３０の構造からして、枠組足場の内側となる作業足場内にいる作業者Ｍがその作業足場内からこの手摺枠１０を枠組足場に近隣させながら連結することを可能にする。 By the way, with respect to the provision of the handrail according to the present invention in the frame scaffolding, in the handrail frame 10 shown in the figure, the worker M who is in the work scaffolding inside the frame scaffolding according to the structure of the fixture 30 performs the work. It is possible to connect the handrail frame 10 from the scaffolding while making it close to the frame scaffolding.

すなわち、図示する実施形態の固定具３０における包持部３１は、前記したように、作業足場内で建枠１における脚柱２に横方向から接近してこれをほぼ半分以上を包み込むように連結される。 That is, as described above, the holding portion 31 in the fixing tool 30 of the illustrated embodiment is connected so that the pedestal 2 in the building frame 1 is approached from the side in the work scaffold so as to wrap almost half of it. Is done.

したがって、この包持部３１を有する上記の固定具３０を縦材１１に連設させる手摺枠１０にあっては、これを枠組足場の外から建枠１における脚柱２に接近させても、包持部３１が脚柱２を包み込むように包持し得ない、つまり、手摺枠１０における縦材１１を建枠１における脚柱２に連結し得ない。 Therefore, in the handrail frame 10 in which the fixing tool 30 having the holding portion 31 is connected to the vertical member 11, even if this is approached to the pedestal 2 in the building frame 1 from the outside of the frame scaffold, The holding part 31 cannot be held so as to wrap the pedestal 2, that is, the vertical member 11 in the handrail frame 10 cannot be connected to the pedestal 2 in the building frame 1.

このことは、この発明による先行手摺を枠組足場に設ける際に、手摺枠１０を一旦枠組足場の外に突き出すようにしてから枠組足場に接近させるようなことがないことを意味する。 This means that when the preceding handrail according to the present invention is provided in the frame scaffold, the handrail frame 10 is not protruded from the frame scaffold before being brought close to the frame scaffold.

つまり、先行手摺を枠組足場に設ける際に、手摺枠１０を一旦枠組足場の外に突き出すようにする場合には、この枠組足場の外に突き出された手摺枠１０が作業者Ｍの手から離れて落下する不具合の発生を回避すべく、落下防止用の綱類を手摺枠１０に連結することを要す。 That is, when the handrail frame 10 is once protruded outside the frame scaffold when the preceding handrail is provided on the frame scaffold, the handrail frame 10 protruding outside the frame scaffold is separated from the hand of the worker M. Therefore, it is necessary to connect the rope for preventing the fall to the handrail frame 10 in order to avoid the occurrence of the trouble of falling.

それゆえ、この落下防止用の綱類を手摺枠１０に連結する手間と、爾後にこの綱類を取り外す手間とを要す不具合があると共に、手摺枠１０の係止具２０を建枠１における横杆３に係合させて一旦預ける状態を現出するまでは、上記の綱類を手摺枠１０から外せず、作業性を悪くする危惧がある。 Therefore, there is a problem that it takes time and labor to connect the rope for preventing the fall to the handrail frame 10 and time and labor to remove the rope after dredging, and the locking tool 20 of the handrail frame 10 is attached to the building frame 1. There is a risk that the above-mentioned ropes cannot be removed from the handrail frame 10 and the workability is deteriorated until the state in which they are engaged with the recumbage 3 and once deposited is revealed.

このことからすれば、この発明の先行手摺にあっては、上記したように、枠組足場内たる作業足場内から手摺枠１０を枠組足場に接近できるから、上記したような綱類を手摺枠１０に連結する手間を要せず、作業性も低下されない。 Accordingly, in the preceding handrail of the present invention, as described above, the handrail frame 10 can approach the frame scaffold from the work scaffold as the frame scaffold. No work is required to connect to the cable, and workability is not reduced.

ちなみに、この発明における手摺枠１０にあっては、いわゆる裏表を逆にしても枠組足場への連結が可能になると言い得るが、その場合には、手摺枠１０を一旦枠組足場の外に出すようにしから、固定具３０を枠組足場の外から建枠１における脚柱２に接近させることになるから、上記した綱類の手摺枠１０への連結が必須とされる不利がある。 Incidentally, in the handrail frame 10 according to the present invention, it can be said that it can be connected to the frame scaffold even if the so-called reverse side is reversed. In addition, since the fixing tool 30 is made to approach the pedestal 2 in the building frame 1 from the outside of the frame scaffold, there is a disadvantage that the connection of the above-mentioned class to the handrail frame 10 is essential.

そして、前記したように、図示する手摺枠１０にあっては、手摺１２が中桟１３および下桟たる繋ぎ材１４とで形成される面から作業足場内に突き出るように偏芯される場合には、この手摺枠１０を裏表逆にして枠組足場に連結すると、手摺１２を親綱代わりに設定し得ない不具合が発生する。 As described above, in the illustrated handrail frame 10, when the handrail 12 is eccentric so as to protrude into the work scaffold from the surface formed by the middle rail 13 and the connecting material 14 as the lower rail. If the handrail frame 10 is turned upside down and connected to the frame scaffolding, there is a problem that the handrail 12 cannot be set in place of the master rope.

以上からすれば、この発明における先行手摺にあっては、手摺枠１０が作業足場内たる枠組足場内から枠組足場に連結されるのが最適となり、したがって、作業員Ｍをして、手摺枠１０の作業足場外への落下を危惧せずして作業性を向上させ得る利点がある。 In view of the above, in the preceding handrail according to the present invention, it is optimal that the handrail frame 10 is connected to the frame scaffold from within the framework scaffold as the work scaffold. There is an advantage that the workability can be improved without fear of falling off the work platform.

枠組足場に先行手摺を設けるのに際して、その作業性を善くするのに向く。 It is suitable for improving the workability when the handrail is provided on the frame scaffold.

１建枠
２脚柱
３横杆
４筋交
５足場板
１０手摺枠
１１縦材
１２手摺
１３中桟
１４下桟
１５繋ぎ材
１６爪先板
１７スライダ
２０係止具
２１フック部
３０固定具
４０連結具
Ａ建築物
Ｂ敷桁
Ｊジャッキベース
Ｍ作業員
Ｒ命綱 DESCRIPTION OF SYMBOLS 1 Building frame 2 Pillar 3 Recumbent 4 Bracing 5 Scaffolding board 10 Handrail frame 11 Vertical member 12 Handrail 13 Middle rail 14 Lower rail 15 Connecting material 16 Toe plate 17 Slider 20 Locking tool 21 Hook part 30 Fixing tool 40 Connecting tool A Building B Girder J Jack base M Worker R Lifeline

Claims

左右で一対となる縦材と、この左右の縦材の上端を繋ぐ手摺とを有して一体に形成される手摺枠を有すると共に、この手摺枠が左右となって近隣する建枠に係止具で分離可能に連繋されると共に固定具および連結具で分離可能に連結されてなる先行手摺にあって、
上記係止具が上記縦材における上下方向の中間部であってやや下端部寄りに連結されながら上記建枠における横杆に連繋され、上記固定具が上記縦材における下端部に連結されながら上記建枠における脚柱の上端部寄りに連結され、上記連結具が上記縦材における上端側部に保持されながら上記脚柱に新たに連結される上方の脚柱における下端側部に連結されると共に、
上記係止具が上記縦材に溶接される基端から延びて上記建枠における横杆に上方から係合するフック部を有し、上記固定具が上記縦材に溶接される基端から延びて上記建枠における脚柱に横方向から近隣すると共にこの脚柱を楔構造下に包持する包持部を有し、上記連結具が上記縦材に保持される基端部から延びて上記新たに連結される上方の建枠における脚柱に横方向から近隣すると共にこの脚柱に固定構造下に連繋する連繋部を有し、
この連繋部が先端側円弧部と後端側円弧部とを有して平面視でＣ字状あるいは半円弧状の基本形状を有すると共に、上記先端側円弧部および後端側円弧部で形成される円弧の中間部に上記先端側円弧部の上記後端側円弧部に対する折り畳みを可能にすると共に上記先端側円弧部の上記後端側円弧部に対する回動を阻止する枢着部を有してなることを特徴とする先行手摺。 It has a handrail frame that is integrally formed with a pair of vertical members on the left and right and a handrail that connects the upper ends of the left and right vertical members, and the handrail frame is left and right and locked to a neighboring building frame In the preceding handrail, which is connected in a separable manner with a tool and separably connected with a fixing tool and a connecting tool,
It said locking member is cooperative next rod in the Kenwaku while being connected to the slightly lower end toward an intermediate portion in the vertical direction in the side member, while said fixture is connected to the lower end of the vertical member above is connected to the upper end side of the pedestal in Kenwaku, together with the connector is connected to the lower end side portion above the pedestal to be newly connected to the pedestal while being held on the upper end side in the longitudinal members ,
Extends from the proximal end which the fastener is welded to the longitudinal member has a hook portion which engages from above the horizontal rod in the Kenwaku, extends from the proximal end of said fastener is welded to the longitudinal member have embraced portion to embracing the pillar under the wedge structure as well as close to the laterally pedestal in the Kenwaku Te, the extends from the proximal end of the connector is held in said longitudinal member It has a connecting part that is adjacent to the pedestal in the upper building frame to be newly connected from the lateral direction and is connected to this pedestal under the fixed structure ,
The connecting portion has a tip-side arc portion and a rear-end-side arc portion, and has a C-shaped or semi-arc-shaped basic shape in plan view, and is formed by the tip-side arc portion and the rear-end-side arc portion. A pivoting portion for enabling the front end side arc portion to be folded with respect to the rear end side arc portion and preventing the front end side arc portion from rotating with respect to the rear end side arc portion. A leading handrail characterized by

上記建枠が上記の縦材と上記横杆とで形成される面の軸線を建築物における外壁面に交差させる方向に位置決めながら建築物の外壁に沿う方向に複数整列されると共に、相隣する建枠同士が筋交の利用下に連結されて枠組足場を形成し、この枠組足場に上記手摺枠が連結されてなる請求項１に記載の先行手摺。 Together with the Kenwaku is more aligned in the direction along the outer wall of the building while positioned in a direction to intersect the outer wall surface of the axial line building surface formed by the longitudinal member and the transverse rod of the above and Neighboring Kenwaku each other are connected under the use of braces to form a framework scaffold, prior handrail of claim 1, wherein the handrail frame is coupled to the framework scaffolding.

上記手摺枠が上記手摺の下方にあってこの手摺に並行しながら上記左右の縦材における上下方向の中間部に連結される中桟を有してなる請求項１または請求項２に記載の先行手摺。 Preceding claim 1 or claim 2 comprising a Chu桟connected to an intermediate portion of the vertical direction of the left and right longitudinal member while the handrail frame parallel with the handrail In the below the handrail handrail.

上記手摺枠が上記手摺の下方にあってこの手摺に並行しながら上記左右の縦材における上下方向の中間部に連結される中桟と、この中桟の下方にあってこの中桟に並行配置されながら両端が上記縦材における下端部に連結される桟部材と、この桟部材と上記中桟とを連結する繋ぎ部材とを有してなる請求項１、請求項２または請求項３に記載の先行手摺。 And Chu桟which the handrail frame can be connected to an intermediate portion of the vertical direction of the longitudinal member of the left and right while parallel with the handrail and disposed below the handrail, in the lower side of the Chu桟juxtaposed in this Chu桟a beam member having both ends while is connected to the lower end of the longitudinal member is, claim 1 comprising and a connecting member for connecting the the crosspiece member and the in crosspiece, claim 2 or claim 3 The leading handrail.

上記手摺枠が上記左右の縦材に両端部が連設される爪先板を有してなる請求項１、請求項２、請求項３または請求項４に記載の先行手摺。 Prior handrail according to the handrail frame according to claim 1 comprising a toe board opposite ends in the longitudinal member of the left and right is continuously provided, according to claim 2, claim 3 or claim 4.

上記手摺枠が上記左右の縦材に両端部が連設される爪先板を有し、この爪先板が上記建枠における横杆に架設される足場板とこの手摺枠との間に出現する隙間を閉塞する隙間塞ぎ板を有し、この隙間塞ぎ板が上記爪先板に起伏可能に連結されてなる請求項１、請求項２、請求項３または請求項４に記載の先行手摺。 Gap the handrail frame at both ends in the longitudinal member of the left and right has a toe board that is continuously provided, the toe plate appears between the scaffolding board and the handrail frame which is laid laterally rod in the Kenwaku a gap closing plate that closes the claim 1, the gap closing plate is formed by undulations coupled to said toe board, according to claim 2, the preceding handrail according to claim 3 or claim 4.

上記手摺枠において上記手摺が基端を作業員に連結させる命綱の先端を移動可能に連結させ、あるいは、基端を作業員に連結させる命綱の先端を連結させるスライダを移動可能に介装させる請求項１、請求項２、請求項３、請求項４、請求項５または請求項６に記載の先行手摺。 Billing the handrail in the handrail frame is movably coupled to the distal end of the lifeline to be connected to the operator the base end, or that is interposed movably slider linking the tip of the umbilical linking the base end to the operator The preceding handrail according to claim 1 , claim 2, claim 3, claim 4, claim 5, or claim 6 .

上記手摺枠において上記手摺が水平杆からなると共にこの水平杆に連結される上記縦材における上端部がこの水平杆における外径より小さくなる薄肉に潰し整形されてなる請求項１、請求項２、請求項３、請求項４、請求項５、請求項６または請求項７に記載の先行手摺。 Claim 1 the upper end of the vertical member said handrail is coupled to the horizontal rod with consisting horizontal rod in the handrail frame is formed by shaping crushed into smaller becomes thinner than the outside diameter of the horizontal rod, according to claim 2, The preceding handrail according to claim 3, claim 4, claim 5, claim 6 or claim 7 .

上記係止具が上記縦材に溶接される基端から延びて上記建枠における横杆に上方から係合するフック部を有してなる請求項１、請求項２、請求項３、請求項４、請求項５、請求項６、請求項７または請求項８に記載の先行手摺。 The said latching tool has a hook part which extends from the base end welded to the said vertical member, and engages with the horizontal wall in the said building frame from upper direction , Claim 2, Claim 3, Claim 3 The preceding handrail according to claim 4, claim 5, claim 6, claim 7 or claim 8 .

上記固定具が上記縦材に溶接される基端から延びて上記建枠における脚柱に横方向に近隣する包持部を有してなる請求項１、請求項２、請求項３、請求項４、請求項５、請求項６、請求項７、請求項８または請求項９に記載の先行手摺。 The said fixture is extended from the base end welded to the said vertical member, and has a holding part which adjoins the pedestal in the said building frame in the horizontal direction , Claim 2, Claim 3, Claim 3 The preceding handrail according to claim 4, claim 5, claim 6, claim 7, claim 8 or claim 9 .

上記連結具が上記縦材に枢着されて保持される基端部から延びて上記建枠に新たに連結される建枠における脚柱に横方向から近隣して固定構造下に連繋する連繋部を有してなる請求項１、請求項２、請求項３、請求項４、請求項５、請求項６、請求項７、請求項８、請求項９または請求項１０に記載の先行手摺。 Interlocking portions where the connector are linked to the fixed structure under and close laterally in the pedestal in Kenwaku newly connected to the construction frame extends from the proximal end to be held by being pivotally attached to the longitudinal member The preceding handrail according to claim 1 , claim 2, claim 3, claim 4, claim 5, claim 6, claim 7, claim 8, claim 9, or claim 10 .