JPS6134454Y2 - - Google Patents

Description

【考案の詳細な説明】 本考案は構築物の高所工事・作業に使用する工
事用仮設足場に関し、殊に施工現場での運搬移設
の容易な足場に関する。[Detailed Description of the Invention] The present invention relates to a temporary construction scaffold used for high-altitude construction work on structures, and particularly to a scaffold that can be easily transported and relocated at a construction site.

最近構築物の高層化に伴い地上又は水上から数
十メートルの高さの構築物上に設置した手摺の改
修、保修、塗装等の工事・作業を容易に又安全に
行なうことのできる工事用仮設足場が要求される
ようになつた。 In recent years, with the rise in the height of buildings, temporary scaffolding for construction work can be easily and safely carried out such as repairing, maintaining, and painting handrails installed on structures tens of meters above the ground or water. It has become required.

従来から使用されている固定式の仮設足場は地
上より足場用枠組を順次上方に組立てて積上げて
ゆく方式が普通であるが、足場が地上より構築物
の高所上に達するには多大の工期と工費を要し、
足場基部の地上領域が工事中通行止めになる等の
不便があつた。又構築物が水上にある場合は水上
に足場を組むことができないので上記の工法に依
ることが不可能である等の欠点があつた。さらに
構築物上の作業領域が横に長い場合は上記のよう
に構成した高い足場を横に延長せねばならず益々
工期を伸ばし工費を高める結果となつていた。 The conventional method of fixed temporary scaffolding is to sequentially assemble and stack the scaffolding frames upwards from the ground, but it takes a lot of time and effort to get the scaffolding from the ground to the top of the structure. Requires construction costs,
There were inconveniences such as the ground area at the base of the scaffold being closed to traffic during construction. Furthermore, if the structure is located on water, scaffolding cannot be erected on the water, so the above-mentioned construction method cannot be used. Furthermore, if the work area on the structure is long horizontally, the high scaffolding constructed as described above must be extended horizontally, resulting in further lengthening the construction period and increasing construction costs.

本考案は上記を考慮して、構築物上面に設けた
足場支持体より突出した継手部材を介して、構築
物上縁外側に工事用仮設足場を支持し、かつ上記
仮設足場を移設可能構造に形成して構築物上縁外
側に沿つて横の移設を可能ならしめ、従来の仮設
足場の欠点解消を計つたものである。 In consideration of the above, the present invention supports a temporary construction scaffold on the outside of the upper edge of the structure via a joint member protruding from a scaffold support provided on the top surface of the structure, and forms the temporary scaffold into a removable structure. This allows for horizontal relocation along the outside of the upper edge of the structure, and is intended to eliminate the drawbacks of conventional temporary scaffolding.

実際例として高層構築物上の既設のコンクリー
ト製手摺を解体して金属製手摺を同位置に新設す
る場合を挙げると次の諸点を考慮しなければなら
ない。 As a practical example, when an existing concrete handrail on a high-rise building is demolished and a new metal handrail is installed in the same location, the following points must be considered.

(1) 既設手摺のパラペツトより上部の部分につい
て改修するため仮設足場の部材が既設パラペツ
トに接触しないこと。(1) Since the part above the parapet of the existing handrail will be repaired, the members of the temporary scaffolding will not come into contact with the existing parapet.

(2) 破砕したコンクリートの破片が地上に落下し
ないこと。(2) Fragments of crushed concrete shall not fall to the ground.

(3) 仮設足場は構築物外側より作業ができるもの
であつて、又作業中に揺れがあつてはならな
い。(3) Temporary scaffolding must be able to be accessed from the outside of the structure, and must not be subject to shaking during work.

(4) 構築物上には仮設足場を支持する既設の支持
物がないこと、又構築物上にアンカー等を打つ
ことは許されない。(4) There are no existing supports on the structure to support the temporary scaffolding, and anchors etc. are not permitted on the structure.

以下、添付図面を参照しながら実施例につき詳
述する。第１図及び第２図に示すように足場本体
１は内外側主縦骨２ａ，２ｂと上下主横骨３ａ，
３ｂで開放状の角形枠組を形成し、これを複数組
並列して上主横骨３ａ上部を相互に横梁４で連結
し、横梁の上面に複数個の吊下げ用係止部材５を
設ける。さらに並列した外側主縦骨２ｂを上下方
向に適宜間隔をおいた複数個の横骨６で連結し、
又、足場本体１の長手方向に外側主縦骨２ｂの外
側に取付けた各横骨６の両端部に上横骨７ａ、中
横骨７ｂ、下横骨７ｃ、内側縦骨８ａ及び外側縦
骨８ｂからなる端部枠体を結合し又上下の横骨６
相互間を適宜間隔をおいた縦骨８で連結し上記の
各部材で箱状の枠組からなる足場本体１を形成す
る。尚、足場本体１の構築物側には横骨６を取付
けない。足場本体１にはまたそのほぼ中位に内外
側主縦骨２ａ，２ｂの側面に継手部材９が固設さ
れ、継手部材９は足場本体を取付けるべき構築物
Ｂ側に向つて第２図の右方に水平に延び、端部に
ボルト結合するための継合面部９ａが設けられて
いる。内側主縦骨２ａの下部を延長し、上下方向
に亘つて構築物Ｂの外側に当接する上下２列の当
接緩衝部材１０ａ，１０ｂを設ける。各当接緩衝
部材はチヤンネル形芯材の自由端部が構築物Ｂ外
側に直接当接しないようにゴム等の弾性材料１１
で被覆する（第３図参照）。さらに下横骨７ｃに
亘つて作業用踏板１２を載置し、横骨６，６の外
側に外側囲い板１３を、又上中下横骨７ａ，７
ｂ，７ｃの側面に端部囲い板１４を取付ける。 Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. As shown in FIGS. 1 and 2, the scaffold body 1 includes medial and lateral main vertical bones 2a, 2b, upper and lower main transverse bones 3a,
3b forms an open rectangular framework, a plurality of sets are arranged in parallel, and the upper parts of the upper main transverse ribs 3a are mutually connected by a transverse beam 4, and a plurality of suspension locking members 5 are provided on the upper surface of the transverse beam. Furthermore, the parallel outer main vertical bones 2b are connected by a plurality of horizontal bones 6 at appropriate intervals in the vertical direction,
Further, upper transverse bones 7a, middle transverse bones 7b, lower transverse bones 7c, inner longitudinal bones 8a, and outer longitudinal bones are attached to both ends of each transverse bone 6 attached to the outside of the outer main longitudinal bone 2b in the longitudinal direction of the scaffold main body 1. The end frame body consisting of 8b is connected and the upper and lower transverse bones 6
Each of the above-mentioned members forms a scaffold main body 1 consisting of a box-shaped framework, which is connected to each other by vertical ribs 8 at appropriate intervals. Note that the horizontal ribs 6 are not attached to the construction side of the scaffold body 1. A joint member 9 is also fixed to the sides of the medial and lateral main vertical bones 2a and 2b at approximately the middle of the scaffold body 1, and the joint member 9 is attached to the right side in FIG. 2 toward the side of the structure B to which the scaffold body is attached. A joint surface portion 9a for bolt connection is provided at the end. Two rows of upper and lower abutting buffer members 10a and 10b are provided extending from the lower part of the inner main vertical bone 2a and abutting the outside of the construct B in the up-down direction. Each contact buffer member is made of an elastic material 11 such as rubber so that the free end of the channel-shaped core material does not directly contact the outside of the structure B.
(See Figure 3). Furthermore, a work step board 12 is placed over the lower transverse bones 7c, an outer side surrounding plate 13 is placed on the outside of the transverse bones 6, 6, and an outer side enclosing plate 13 is placed on the outer side of the upper, middle, and lower transverse bones 7a, 7.
Attach the end shroud 14 to the sides of b and 7c.

１５は構築物Ｂ上面に定置され、枠形の支持基
礎部材１６と該支持基礎部材上に水平に固設した
継手部材１７とよりなる足場支持体で、この場合
継手部材１７は構築物側より外方に向けて突出し
継手部材の端面に継合面部１７ａを備える。通常
の旋工においては、第２図の左側に示すボルト１
６Ａを利用して、構築物Ｂのパラペツト部分を足
場本体の当接緩衝部材と足場支持体間で強固に挾
持して足場を構築物上に固定する。第２図に示す
ように構築物上に排水溝等がある場合支持基礎部
材１６を構築物上の排水溝１８内に嵌設し、排水
溝の内壁に当てた木板１９，１９を支持基礎部材
１６に設けた左右のボルト１６Ａで押圧すること
により固定する。尚支持基礎部材をより安定させ
るために第２図に一点鎖線で示す重錘Ｗにより構
築物側に重量をかけてもよい。 Reference numeral 15 denotes a scaffolding support body fixed on the upper surface of the structure B and consisting of a frame-shaped support foundation member 16 and a joint member 17 fixed horizontally on the support foundation member. A joint surface portion 17a is provided on the end surface of the joint member that protrudes toward. In normal turning, the bolt 1 shown on the left side of Fig.
6A, the parapet portion of construct B is firmly clamped between the abutting buffer member of the scaffold body and the scaffold support to fix the scaffold onto the construct. As shown in FIG. 2, if there is a drainage ditch etc. on the structure, the support foundation member 16 is fitted into the drainage ditch 18 on the structure, and the wooden boards 19, 19 placed against the inner wall of the drainage ditch are attached to the support foundation member 16. It is fixed by pressing with the provided left and right bolts 16A. In order to further stabilize the supporting foundation member, weight may be applied to the structure using a weight W shown by a chain line in FIG.

第４Ａ図ないし第４Ｃ図は両継手部材９，１７
の又別の結合態様を示す。第４Ａ図では、中実段
部２０を該段部に外嵌する孔２１を有する軸２２
に嵌合し、段部と軸を共通状に貫通した孔を介し
てピン２３を挿入する。第４Ｂ図は、互に嵌合可
能なチヤンネル形に形成した両継手部材２４，２
５を両者を共通に貫通する孔を介してピン２３を
挿入結合したもので、又第４Ｃ図は第４Ｂ図と同
様に嵌合させたチヤンネル形継手部材２４，２５
をボルト２６で結合したものである。足場本体及
び支持部材は工事の進行につれてクレーン等で吊
下げて構築物上を移動させる。 Figures 4A to 4C show both joint members 9 and 17.
This shows another bonding mode. FIG. 4A shows a shaft 22 having a hole 21 for fitting a solid step 20 therein.
The pin 23 is inserted through a hole that passes through the stepped portion and the shaft in common. FIG. 4B shows both joint members 24, 2 formed in a channel shape that can be fitted into each other.
Figure 4C shows channel type joint members 24 and 25 fitted in the same manner as in Figure 4B.
are connected with bolts 26. As construction progresses, the scaffolding body and supporting members are suspended by a crane or the like and moved over the structure.

第５図は可動式の足場支持体の別の実施態様を
示す図で、足場支持体２７は図示せぬ駆動装置を
有する走行用車輪２９を備えて横方向に積極的に
移動可能で、継手部材９，１７で結合支持した足
場本体は足場支持体２７に固着した油圧装置３０
の油圧を継手部材９，１７の軸線方向に働かせる
ことにより内外方向に移動可能であり、又足場支
持体２７に固着した油圧装置２８とそのピストン
シヤフトの自由端に取付けた車輪２９間の距離を
該油圧装置２８で伸縮することにより足場支持体
２７を上下させ、これによつて足場本体を上下方
向に移動させることができる。 FIG. 5 shows a further embodiment of a movable scaffolding support 27, which can be actively moved in the lateral direction by means of running wheels 29 with a drive (not shown), and which has joints. The scaffold body connected and supported by members 9 and 17 has a hydraulic system 30 fixed to the scaffold support 27.
By applying hydraulic pressure in the axial direction of the joint members 9 and 17, the joint members 9 and 17 can be moved inward and outward directions, and the distance between the hydraulic device 28 fixed to the scaffold support 27 and the wheel 29 attached to the free end of its piston shaft can be adjusted. The scaffold support 27 is moved up and down by expanding and contracting with the hydraulic device 28, thereby making it possible to move the scaffold body in the up and down direction.

第１図ないし第３図の実施例について本考案の
仮設足場の操作を説明する。構築物上に改修すべ
き手摺部材、足場本体１、足場支持体１５及び小
型クレーンを、ブームクレーンを用いて地上から
構築物上に吊上げ移送する。足場支持体を構築物
上に定置し、小型クレーンを用い吊下げ用係止部
材５を介して足場本体を構築物上縁外側に添装さ
せ足場本体の継手部材９と足場支持体の継手部材
１７をボルト結合する。この時足場本体の当接緩
衝部材１０ａ，１０ｂは構築物の外側に当接して
いる。この状態で作業員は足場本体の作業踏台１
２上で安全に既設の手摺撤去及び新設の手摺設置
作を行うことができる。作業現場の地域を移設さ
せるには結合ボルトを外して小型クレーンで足場
本体を横に移設し、一方、足場支持体を手動等で
移設させ新しい作業地域で再び足場本体と足場支
持体を結合する。尚、第５図の足場支持体２７を
使用する場合は、第６図に示す如く新設の手摺の
支柱のみを立設して、足場本体１を積極的に上・
下移動と横方向移動させれば両者をその都度分
離・結合する必要がなく支柱設置が終つたところ
へ、支柱間に格子体を取付ければ良い。第６図に
は手前に新設された手摺、次に改修工事状況、遠
方には未改修の既設手摺を示している。 The operation of the temporary scaffolding of the present invention will be explained with reference to the embodiments shown in FIGS. 1 to 3. A handrail member to be repaired on a structure, a scaffold body 1, a scaffold support 15, and a small crane are lifted and transferred from the ground to the structure using a boom crane. The scaffold support is placed on the structure, and the scaffold body is attached to the outside of the upper edge of the structure via the suspension locking member 5 using a small crane, and the joint member 9 of the scaffold body and the joint member 17 of the scaffold support are connected. bolted together. At this time, the contact buffer members 10a, 10b of the scaffold body are in contact with the outside of the structure. In this state, the worker is on the work platform 1 of the scaffolding body.
2. Existing handrails can be safely removed and new handrails installed. To relocate the work site area, remove the connecting bolts and move the scaffold body to the side using a small crane, while manually relocating the scaffold support and connect the scaffold body and scaffold support again in the new work area. . In addition, when using the scaffold support 27 shown in FIG. 5, as shown in FIG.
By moving downward and laterally, there is no need to separate and connect the two each time, and the lattice body can be installed between the pillars at the place where the pillars have been installed. Figure 6 shows the newly installed handrail in the foreground, the repair work in progress, and the existing, unrenovated handrail in the distance.

本考案は以上のように構成したので、大掛りな
足場が不要で工期を短縮し又工費を低減すること
が可能で、作業領域を横方向に容易に移設するこ
とができる。又足場本体が構築物外側にあるので
既設パラペツトに接触することがなく、囲われた
広い作業踏板があるので破砕したコンクリート片
が地上に落下せず、構築物外側よりの作業が可能
で又足場本体が当接緩衝部材を介して構築物外側
にしつかりと静止されるので足場が動揺すること
がなく、さらに足場支持体が固定する場合に構築
物上に別の支持部材を必要としないし、積極可動
式の場合は足場本体を速やかに移設することがで
きる。 Since the present invention is configured as described above, it is possible to shorten the construction period and reduce construction costs without requiring large-scale scaffolding, and the work area can be easily moved laterally. In addition, since the scaffold itself is located outside the structure, it does not come into contact with the existing parapet, and since there is a wide enclosed work tread, crushed concrete pieces will not fall to the ground, making it possible to work from outside the structure. Since the scaffold is firmly stationary on the outside of the structure via the abutting buffer member, the scaffold does not move.Furthermore, when the scaffold support is fixed, there is no need for another support member on the structure, and the structure is actively movable. In such cases, the scaffold itself can be quickly relocated.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案にかかる仮設足場本体の正面
図、第２図は第１図の−線についての側面断
面図で足場本体を構築物上に定置した足場支持体
に結合した状態を示し、第３図は足場本体の要部
を示す拡大図、第４Ａ図ないし第４Ｃ図は継手部
材の別の実施例を示す図、第５図は可動式の足場
支持体の別の実施例を示す図で、第６図は手摺の
改修工事の作業態様の１例を示す説明図である。 １……足場本体、５……吊下げ用係止部材、９
……足場本体の継手部材、１０ａ，１０ｂ……当
接緩衝部材、１２……作業用踏板、１３……外側
面囲い板、１４……端面囲い板、１５……足場支
持体、１６……支持基礎部材、１７……足場支持
体の継手部材、２３……ピン、２６……ボルト、
Ｂ……構築物。 FIG. 1 is a front view of the temporary scaffold main body according to the present invention, and FIG. 2 is a side sectional view taken along the - line in FIG. FIG. 3 is an enlarged view showing the main parts of the scaffold body, FIGS. 4A to 4C are views showing another embodiment of the joint member, and FIG. 5 is a view showing another embodiment of the movable scaffold support. FIG. 6 is an explanatory diagram showing an example of the work mode of the handrail repair work. 1... Scaffolding main body, 5... Hanging locking member, 9
. . . Joint members of the scaffold body, 10a, 10b . . . Contact buffer members, 12 . . . Working tread, 13 . Support foundation member, 17... Joint member of scaffold support, 23... Pin, 26... Bolt,
B...Construction.

Claims (1)

【実用新案登録請求の範囲】 １ 構築物上縁外側に添装仮設させて高所工事作
業を行うための足場であつて、足場本体１を内
外側面と上下面よりなる箱状の枠組に形成し、
足場本体上のほぼ中位に構築物Ｂ側に向つて水
平に突出した少くとも２個の継手部材９を設
け、構築物外側に対向した足場本体の内側面下
部に水平方向に沿つて構築物外側に当接する少
くとも１列の当接緩衝部材１０ａ，１０ｂを設
け、又足場本体底部上に作業用踏板１２を設
け、さらに構築物上面に上記継手部材９と夫々
結合する継手部材１７と支持基礎部材１６とを
備えた足場支持体１５を設けてなる工事用仮設
足場。 ２ 足場本体を形成する箱状枠組の外側面及び両
端側面に囲い板１３，１４を備えた実用新案登
録請求の範囲第１項記載の工事用仮設足場。 ３ 両継手部材９，１７の軸に直角方向に通した
ピン２３或はボルト２６により上記両部材を結
合した実用新案登録請求の範囲第１項記載の工
事用仮設足場。 ４ 足場本体と足場支持体間で構築物の外側上縁
部を挾持した実用新案登録請求の範囲第１項記
載の工事用仮設足場。 ５ 足場支持体の継手部材１７が足場支持体２７
の油圧装置３０及び２８によつて内外方向及び
上下方向に移動可能な実用新案登録請求の範囲
第１項記載の工事用仮設足場。 ６ 足場支持体２７自身が走行用車輪２９によつ
て移動可能である実用新案登録請求の範囲第１
項記載の工事用仮設足場。[Scope of Claim for Utility Model Registration] 1. A scaffold that is temporarily installed outside the upper edge of a structure to perform construction work at high places, with the scaffold body 1 formed into a box-shaped framework consisting of inside and outside sides and top and bottom surfaces. ,
At least two joint members 9 are provided approximately in the middle of the scaffold body and protrude horizontally toward the structure B side, and are attached to the outside of the structure along the lower part of the inner surface of the scaffold body facing the outside of the structure. At least one row of abutting buffer members 10a, 10b are provided in contact with each other, and a working step board 12 is provided on the bottom of the scaffold body, and a joint member 17 and a supporting foundation member 16 are provided on the upper surface of the structure to respectively connect with the joint member 9. A temporary scaffold for construction work comprising a scaffold support 15 equipped with. 2. A temporary scaffold for construction work according to claim 1, which is a registered utility model and is provided with shrouding plates 13 and 14 on the outer surface and both end surfaces of a box-like framework forming the scaffold body. 3. The temporary construction scaffolding according to claim 1, which is a registered utility model, in which both the joint members 9, 17 are connected by pins 23 or bolts 26 passed perpendicularly to the axes of the joint members 9, 17. 4. A temporary scaffold for construction work according to claim 1 of the utility model registration claim, in which the outer upper edge of the structure is sandwiched between the scaffold body and the scaffold support. 5 The joint member 17 of the scaffold support is connected to the scaffold support 27
A temporary scaffolding for construction work according to claim 1, which is movable in an inward/outward direction and in an up/down direction by means of hydraulic devices 30 and 28. 6 Utility model registration claim 1 in which the scaffold support 27 itself is movable by the traveling wheels 29
Temporary scaffolding for construction as described in section.