JP6021604B2 - Temporary scaffolding and its assembly method - Google Patents

Description

本発明は、狭小地に隣家と接近して建てられた建物の建築やメンテナンスの作業を室外側から行う際に用いられる仮設足場及びその組み立て方法に関する。   The present invention relates to a temporary scaffold used when building or maintaining a building built close to a neighboring house in a narrow area, and an assembling method thereof.

住宅等の建物の建築時や、建築後のメンテナンス時において、室外側から作業をおこなうために、建築足場が仮設される。
このような建築足場は、一般に、所定の間隔で立設された単管支柱と梁部材とを縦横に組み合わせ、梁部材に踏み板を仮設して構築している。
例えば、建物に近い内側位置に所定間隔で複数の支柱からなる第１の支柱列を立設配置し、建物から遠い外側位置に所定間隔で複数の支柱からなる第２の支柱列を立設配置し、２つの支柱列を建物の周りに平行に周回させ、内側と外側の支柱の間に梁部材を仮設し、更に隣接する梁部材に踏み板を仮設するようにし、直線状に連接された踏み板列をコーナー部で直交させるように配置するものが提案されている（例えば特許文献１）。 In order to perform work from outside the room during construction of a building such as a house or maintenance after construction, a construction scaffolding is temporarily installed.
Such building scaffolds are generally constructed by combining single pipe columns and beam members that are erected at predetermined intervals in the vertical and horizontal directions, and temporarily installing a footboard on the beam members.
For example, a first column of columns composed of a plurality of columns is arranged upright at an inner position close to the building, and a second column of columns arranged at a predetermined interval is arranged upright at an outer position far from the building. The two struts circulate in parallel around the building, a beam member is temporarily installed between the inner and outer struts, and a tread is temporarily installed on the adjacent beam member, and the treads connected in a straight line An arrangement has been proposed in which the rows are arranged so as to be orthogonal at the corners (for example, Patent Document 1).

特開２００５−１８８０２３号公報Japanese Patent Laid-Open No. 2005-188023

しかし、隣家との距離が例えば３０〜５０ｃｍ程度しかないような狭小地に、隣家と接近して建築された建物のメンテナンス等を行う際には、十分なスペースが確保できず、特許文献１の発明のような従来の建築足場を仮設することができなかった。   However, when performing maintenance etc. on a building built close to the neighbor in a narrow area where the distance to the neighbor is only about 30 to 50 cm, for example, a sufficient space cannot be secured. A conventional construction scaffold such as the invention could not be temporarily set up.

本発明は、上記の課題に鑑みてなされたものであり、本発明の目的は、隣家と接近して建築された建物の作業を室外側から行うときに用いる狭小地用の仮設足場及びその組み立て方法を提供することにある。   The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a temporary scaffold for a narrow land used when a building constructed close to a neighbor's house is operated from the outdoor side, and its assembly. It is to provide a method.

前記課題は、請求項１によれば、建物と該建物に隣接する建物との間に設置され、前記建物の作業を行うために用いる仮設足場であって、間隔を置いて配置された一対の支柱と、該一対の支柱にそれぞれ両端側が連結される梁枠体と、該梁枠体上に固定される足場板と、を備え、前記梁枠体は、該梁枠体が長手方向に複数に分割された分割梁枠が、相互に連結されてなること、により解決される。   According to claim 1, the subject is a temporary scaffold that is installed between a building and a building adjacent to the building, and is used to perform the work of the building, and is a pair of spaced-apart And a scaffolding plate fixed on the beam frame. The beam frame includes a plurality of beam frames in the longitudinal direction. This is solved by connecting the divided beam frames divided to each other to each other.

このように、梁枠体は、梁枠体が長手方向に複数に分割された分割梁枠が、相互に連結されてなるため、梁枠体を分割梁枠毎に、仮設足場の設置場所に持ち込むことができ、仮設足場の設置場所に持ち込む個々の部材の長さを短くすることができる。従って、建物と隣接する建物とが接近しており、仮設足場を設置するスペースが狭い場合であっても、仮設足場の設置が可能となる。特に、仮設足場を設置するスペースが狭いだけでなく、メンテナンス等の作業の対象となる建物の前の道路が狭い場合であっても、設置場所への仮設足場の搬入を容易に行うことができる。   In this way, the beam frame is formed by connecting the divided beam frames obtained by dividing the beam frame into a plurality of longitudinal directions, so that the beam frames are provided for each of the divided beam frames as the temporary scaffolding installation location. The length of each member that can be brought into the temporary scaffolding can be reduced. Therefore, even if the building and the adjacent building are close to each other and the space for installing the temporary scaffolding is narrow, the temporary scaffolding can be installed. In particular, not only is the space for installing the temporary scaffolding narrow, but even when the road in front of the building to be subjected to maintenance work is narrow, the temporary scaffolding can be easily carried into the installation site. .

このとき、前記梁枠体は、梁材が、水平方向において一列のみ配置されてなると好適である。
このように構成しているため、梁材を水平方向に二列備えた一般的な梁枠体よりも、幅の狭い梁枠体を実現できる。従って、一般的な仮設足場では、設置することができないような幅の狭い狭小地にも、仮設足場を設置することができる。 In this case, it is preferable that the beam frame is formed by arranging only one row of beam members in the horizontal direction.
Since it is configured in this way, a beam frame having a narrower width than a general beam frame including two rows of beam members in the horizontal direction can be realized. Therefore, a temporary scaffold can be installed even in a narrow narrow area that cannot be installed with a general temporary scaffold.

このとき、前記梁枠体の前記両端側には、前記梁枠体を前記支柱に連結するための連結部が設けられ、前記支柱は、地面上に立設されると共に、前記梁枠体を前記支柱に連結するための被連結部を、前記支柱の延長方向に沿って複数備えていると好適である。
このように、支柱が、地面上に立設されるため、支柱を建物に固定する必要がない。従って、建物に支柱を固定する場所を探す必要がないので、建物のメンテナンス時にも、場所を選ばず、便利である。
また、支柱は、梁枠体を支柱に連結するための被連結部を、支柱の延長方向に沿って複数備えているため、作業をする高さに応じて足場板を設置できる。また、上下に足場板を複数並列して設置することも可能となる。 At this time, a connecting portion for connecting the beam frame body to the support column is provided on both end sides of the beam frame body, the support column is erected on the ground, and the beam frame body is It is preferable that a plurality of connected portions for connecting to the support columns are provided along the extending direction of the support columns.
In this way, since the column is erected on the ground, it is not necessary to fix the column to the building. Therefore, there is no need to find a place for fixing the column to the building, so it is convenient for the maintenance of the building regardless of the location.
Moreover, since the support | pillar is equipped with the to-be-connected part for connecting a beam frame to a support | pillar along the extension direction of a support | pillar, a scaffold board can be installed according to the height which works. It is also possible to install a plurality of scaffold plates in parallel on the top and bottom.

このとき、前記分割梁枠には、該分割梁枠が他の前記分割梁枠と連結される端部に、前記梁材に対して角度を持った板体が固定され、該板体は、前記分割梁枠と前記他の分割梁枠とを連結するボルト孔を備えていると好適である。
このように構成しているため、隣接する分割梁枠を、ボルト締めにより相互に連結できるので、狭小地での仮設足場の組み立てを簡単に行うことができると同時に、分割梁枠同士の連結強度を十分保つことができる。 At this time, a plate body having an angle with respect to the beam material is fixed to the divided beam frame at an end where the divided beam frame is connected to the other divided beam frame. It is preferable that a bolt hole for connecting the divided beam frame and the other divided beam frame is provided.
Since it is configured in this way, the adjacent split beam frames can be connected to each other by bolting, so that the temporary scaffolding can be easily assembled in a narrow area, and at the same time the connection strength between the split beam frames Can keep enough.

このとき、前記分割梁枠はそれぞれ、前記足場板を固定するための固定部材を少なくとも一対備え、前記足場板は、前記分割梁枠毎に設けられ、前記板体の上方には、前記足場板が配置されていると好適である。
このように構成しているため、個々の足場板を短いものとすることができ、仮設足場の設置場所に持ち込む個々の部材の長さを短くすることができる。その結果、仮設足場の狭小地への設置が容易になる。
また、板体の上方には、足場板が配置されているため、隣接する分割梁枠を連結する板体が、作業員側に露出されることがなく、誤って板体が作業員に踏まれて連結剛性が低下することを防止できる。 At this time, each of the divided beam frames includes at least a pair of fixing members for fixing the scaffold plate, and the scaffold plate is provided for each of the divided beam frames, and the scaffold plate is disposed above the plate body. Is preferably arranged.
Since it comprises in this way, each scaffold board can be made short, and the length of each member brought into the installation place of a temporary scaffold can be shortened. As a result, the temporary scaffold can be easily installed in a narrow area.
In addition, since the scaffolding plate is disposed above the plate, the plate connecting the adjacent divided beam frames is not exposed to the worker side, and the plate is accidentally stepped on by the worker. It is possible to prevent the connection rigidity from being lowered.

このとき、前記足場板は、幅が５０ｃｍ以下であると好適である。
このように構成しているため、作業対象となる建物と隣接する建物との間のスペースが狭い狭小地でも、仮設足場の設置が可能となる。
このとき、前記分割梁枠は、上方の前記梁材と、該上方の梁材に対向して下方に設けられた下方の前記梁材と、該下方の梁材と前記上方の梁材とを橋渡す架橋部材と、が一体に形成されてなると好適である。
このように構成しているため、梁枠体を、鉛直方向に広がりを持った枠状に構成でき、梁枠体の剛性を向上できる。また、分割梁枠が使用中に回転することを防止できる。 At this time, it is preferable that the scaffold plate has a width of 50 cm or less.
Since it is configured in this way, it is possible to install a temporary scaffold even in a narrow area where the space between the building to be worked and the adjacent building is narrow.
At this time, the divided beam frame includes the upper beam member, the lower beam member provided below and opposed to the upper beam member, the lower beam member, and the upper beam member. It is preferable that the bridging member for bridging is integrally formed.
Since it comprises in this way, a beam frame can be comprised in the frame shape which spreads in the perpendicular direction, and the rigidity of a beam frame can be improved. In addition, the split beam frame can be prevented from rotating during use.

前記課題は、請求項８によれば、建物と該建物に隣接する建物との間に、前記建物の作業を行うために用いる仮設足場を設置する仮設足場の組み立て方法であって、一対の支柱を、相互に間隔を置いて地面上に設置する工程と、前記一対の支柱に、長手方向に複数に分割された分割梁枠が、相互に連結されてなる梁枠体の両端側を連結する連結工程と、前記梁枠体上に足場板を固定する足場板固定工程と、を備えること、により解決される。   According to claim 8, the subject is an assembly method of a temporary scaffold for installing a temporary scaffold used for performing the work of the building between a building and a building adjacent to the building, the pair of struts Are installed on the ground with a space between each other, and a pair of beam frames divided into a plurality of lengths in the pair of columns are connected to both ends of the beam frame body. This is solved by including a connecting step and a scaffold plate fixing step of fixing the scaffold plate on the beam frame.

このように、梁枠体は、梁枠体が長手方向に複数に分割された分割梁枠が、相互に連結されてなるため、梁枠体を分割梁枠毎に、仮設足場の設置場所に持ち込むことができ、仮設足場の設置場所に持ち込む個々の部材の長さを短くすることができる。従って、建物と隣接する建物とが接近しており、仮設足場を設置するスペースが狭い場合であっても、仮設足場の設置が可能となる。特に、仮設足場を設置するスペースが狭いだけでなく、メンテナンス等の作業の対象となる建物の前の道路が狭い場合であっても、設置場所への仮設足場の搬入を容易に行うことができる。   In this way, the beam frame is formed by connecting the divided beam frames obtained by dividing the beam frame into a plurality of longitudinal directions, so that the beam frames are provided for each of the divided beam frames as the temporary scaffolding installation location. The length of each member that can be brought into the temporary scaffolding can be reduced. Therefore, even if the building and the adjacent building are close to each other and the space for installing the temporary scaffolding is narrow, the temporary scaffolding can be installed. In particular, not only is the space for installing the temporary scaffolding narrow, but even when the road in front of the building to be subjected to maintenance work is narrow, the temporary scaffolding can be easily carried into the installation site. .

このとき、前記連結工程では、一方の前記支柱に、前記分割梁枠のうち、最初の前記分割梁枠を連結する工程と、前記支柱に既に連結された前記分割梁枠に、次の前記分割梁枠を順次連結する工程と、他方の前記支柱に、最後の前記分割梁枠を連結する工程と、を行い、前記足場板固定工程では、前記分割梁枠毎に、前記足場板を固定すると好適である。   At this time, in the connecting step, the step of connecting the first divided beam frame among the divided beam frames to one of the columns, and the next division to the divided beam frame already connected to the column. A step of sequentially connecting beam frames and a step of connecting the last divided beam frame to the other support column are performed, and in the scaffold plate fixing step, the scaffold plate is fixed for each of the divided beam frames. Is preferred.

本発明によれば、梁枠体は、梁枠体が長手方向に複数に分割された分割梁枠が、相互に連結されてなるため、梁枠体を分割梁枠毎に、仮設足場の設置場所に持ち込むことができ、仮設足場の設置場所に持ち込む個々の部材の長さを短くすることができる。従って、建物と隣接する建物とが接近しており、仮設足場を設置するスペースが狭い場合であっても、仮設足場の設置が可能となる。特に、仮設足場を設置するスペースが狭いだけでなく、メンテナンス等の作業の対象となる建物の前の道路が狭い場合であっても、設置場所への仮設足場の搬入を容易に行うことができる。   According to the present invention, since the beam frame is formed by connecting the divided beam frames obtained by dividing the beam frame into a plurality of longitudinal directions, the beam frames are installed for each divided beam frame. It can be brought into the place, and the length of each member brought into the temporary scaffolding place can be shortened. Therefore, even if the building and the adjacent building are close to each other and the space for installing the temporary scaffolding is narrow, the temporary scaffolding can be installed. In particular, not only is the space for installing the temporary scaffolding narrow, but even when the road in front of the building to be subjected to maintenance work is narrow, the temporary scaffolding can be easily carried into the installation site. .

本発明の一実施形態に係る仮設足場を示す前面図である。It is a front view which shows the temporary scaffold which concerns on one Embodiment of this invention. 本発明の一実施形態に係る端部梁枠の前面図である。It is a front view of the end beam frame concerning one embodiment of the present invention. 本発明の一実施形態に係る中央梁枠と端部梁枠との連結状態を示す斜視説明図である。It is an isometric view explanatory drawing which shows the connection state of the center beam frame and end part beam frame which concern on one Embodiment of this invention. 本発明の一実施形態に係る中央梁枠の前面図である。It is a front view of the center beam frame which concerns on one Embodiment of this invention. 本発明の他の実施形態に係る仮設足場を示す前面図である。It is a front view which shows the temporary scaffold which concerns on other embodiment of this invention.

以下、本発明の一実施形態に係る仮設足場及びその組み立て方法について、図１〜図５を参照しながら説明する。
図１は、本発明の一実施形態に係る仮設足場を示す前面図である。図２は、本発明の一実施形態に係る端部梁枠の前面図である。図３は、本発明の一実施形態に係る中央梁枠と端部梁枠との連結状態を示す斜視説明図である。図４は、本発明の一実施形態に係る中央梁枠の前面図である。図５は、本発明の他の実施形態に係る仮設足場を示す前面図である。 Hereinafter, a temporary scaffold and an assembly method thereof according to an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a front view showing a temporary scaffold according to an embodiment of the present invention. FIG. 2 is a front view of an end beam frame according to an embodiment of the present invention. FIG. 3 is a perspective explanatory view showing a connection state between the central beam frame and the end beam frame according to the embodiment of the present invention. FIG. 4 is a front view of the central beam frame according to the embodiment of the present invention. FIG. 5 is a front view showing a temporary scaffold according to another embodiment of the present invention.

（仮設足場）
本実施の形態に係る仮設足場１は、隣家との距離が例えば３０〜５０ｃｍ程度しかないような狭小地に、隣家と接近して建築される建物において、建築作業やメンテナンス作業を室外側から行うときに用いられる狭小地用の仮設足場１である。
本実施形態の仮設足場１は、図１に示すように、一対の支柱２と、一対の支柱２に両端が連結される梁枠体３と、梁枠体３上に固定される足場板６と、を備えている。
支柱２は、図１に示すように、３階建て戸建て住宅の屋根に達する長さを備えた鋼製の丸パイプ状体からなり、メンテナンス対象の建物と、隣接する建物との隙間の地面の２カ所に固定される。支柱２には、梁枠体３の端部に形成された係止片４５が係止される略筒状の係止ホルダー２１が、支柱２の長さ方向に所定間隔を置いて複数設けられている。
係止ホルダー２１は、図１に示すように、支柱２の水平方向の断面の周に沿って、９０°ずつずらして４つずつ設けられており、支柱２のほぼ同じ高さに、相互に垂直になるように、４つの梁枠体３を連結可能に構成されている。 (Temporary scaffolding)
The temporary scaffold 1 according to the present embodiment performs a building work and a maintenance work from the outdoor side in a building that is built close to a neighboring house in a narrow area whose distance from the neighboring house is only about 30 to 50 cm, for example. It is a temporary scaffold 1 for a narrow land sometimes used.
As shown in FIG. 1, the temporary scaffold 1 according to this embodiment includes a pair of support columns 2, a beam frame body 3 that is connected to the pair of support columns 2 at both ends, and a scaffold plate 6 that is fixed on the beam frame body 3. And.
As shown in FIG. 1, the column 2 is made of a steel round pipe having a length that reaches the roof of a three-story detached house, and the ground between the building to be maintained and the adjacent building. Fixed in two places. The support column 2 is provided with a plurality of substantially cylindrical locking holders 21 for locking the locking pieces 45 formed at the ends of the beam frame 3 at predetermined intervals in the length direction of the support column 2. ing.
As shown in FIG. 1, four locking holders 21 are provided by shifting by 90 ° along the circumference of the horizontal cross section of the support column 2, and the support holders 21 are arranged at substantially the same height of the support column 2. The four beam frame bodies 3 are configured to be connectable so as to be vertical.

本実施形態では、梁枠体３は、長さ方向に３つに分割されており、一対の端部梁枠４と、一対の端部梁枠４に挟まれる中央梁枠５と、を備えている。端部梁枠４及び中央梁枠５が、特許請求の範囲の分割梁枠に該当する。
端部梁枠４は、図２に示すように、端部梁枠体４１を主要構成要素としている。
端部梁枠体４１は、鋼製の丸パイプ状の上梁材４２と、上梁材４２の下方で上梁材４２に平行に延びる鋼製の丸パイプ状の下梁材４３と、上梁材４２と下梁材４３とを架橋して連結する架橋部材４４とが、溶接により一体に形成されてなる。
端部梁枠体４１では、上梁材４２及び下梁材４３が、水平方向において一列のみ配置されている。
上梁材４２及び下梁材４３の長手方向の一端には、端部梁枠４を中央梁枠５に連結するための板体４６が一体に溶接固定されている。板体４６は、上梁材４２及び下梁材４３に対して垂直な略矩形の板体である。板体４６には、矩形の４つの頂点よりも中央よりの４か所に、不図示のボルト孔が穿孔されている。この不図示のボルト孔に挿入された不図示の両切りボルトとナット４６ａにより、板体５６に固定される。
上梁材４２の他端には、端部梁枠４を支柱２に連結するための係止片４５が、上梁材４２に一体に設けられている。係止片４５は、端部が下方を向いており、係止片４５の端部側を支柱２の係止ホルダー２１に挿入することにより、係止ホルダー２１に係止される。 In the present embodiment, the beam frame 3 is divided into three in the length direction, and includes a pair of end beam frames 4 and a central beam frame 5 sandwiched between the pair of end beam frames 4. ing. The end beam frame 4 and the central beam frame 5 correspond to the divided beam frames in the claims.
As shown in FIG. 2, the end beam frame 4 includes an end beam frame body 41 as a main component.
The end beam frame 41 includes a steel round pipe-like upper beam member 42, a steel round pipe-like lower beam member 43 extending in parallel to the upper beam member 42 below the upper beam member 42, and an upper A bridge member 44 that bridges and connects the beam member 42 and the lower beam member 43 is integrally formed by welding.
In the end beam frame body 41, the upper beam member 42 and the lower beam member 43 are arranged in only one row in the horizontal direction.
A plate 46 for connecting the end beam frame 4 to the central beam frame 5 is integrally welded and fixed to one end in the longitudinal direction of the upper beam material 42 and the lower beam material 43. The plate 46 is a substantially rectangular plate perpendicular to the upper beam member 42 and the lower beam member 43. Bolt holes (not shown) are drilled in the plate 46 at four locations from the center of the four rectangular vertices. It is fixed to the plate body 56 by a not-shown double-sided bolt and a nut 46a inserted into this not-shown bolt hole.
At the other end of the upper beam member 42, a locking piece 45 for connecting the end beam frame 4 to the column 2 is provided integrally with the upper beam member 42. The locking piece 45 has an end facing downward, and is locked to the locking holder 21 by inserting the end side of the locking piece 45 into the locking holder 21 of the support column 2.

上梁材４２の上面であって、係止片４５よりも長手方向中央寄りの位置と、板体４６よりも長手方向中央寄りの位置の２カ所には、図２に示すように、足場板６を固定するための足場板ホルダー３６が不図示のボルトにより固定されている。
足場板ホルダー３６は、図３に示すように、平板部３６ａ及び平板部３６ａの両端が屈曲された一対の壁部３６ｂを備えたコの字状部材３６ｃと、コの字状部材３６ｃの平板部３６ａと一対の壁部３６ｂとに囲まれた領域に溶接固定された角パイプ３６ｄとから形成されている。
一対の壁部３６ｂは、上端側が、他方の壁部３６ｂに近づくように若干傾斜して、平板部３６ａから立設されている。また、一対の壁部３６ｂの間の距離は、足場板６の幅と同じ長さに形成されている。これにより、足場板６を足場板ホルダー３６に載せたときに、足場板ホルダー３６上に固定可能になっている。
足場板ホルダー３６は、角パイプ３６ｄの上面が水平になるよう、上梁材４２上面にボルト締めされている。
なお、本実施形態では、足場板６を上梁材４２，５２に固定するための部材として、図２に示す足場板ホルダー３６を備えているが、足場板ホルダー３６は、足場板６を上梁材４２，５２に固定するための部材の一例であって、適宜、他の構成からなる部材を採用してもよい。 As shown in FIG. 2, a scaffold plate is provided at two positions on the upper surface of the upper beam member 42, a position closer to the center in the longitudinal direction than the locking piece 45 and a position closer to the center in the longitudinal direction than the plate body 46. A scaffold plate holder 36 for fixing 6 is fixed by a bolt (not shown).
As shown in FIG. 3, the scaffold plate holder 36 includes a U-shaped member 36c having a flat plate portion 36a and a pair of wall portions 36b in which both ends of the flat plate portion 36a are bent, and a flat plate of the U-shaped member 36c. It is formed of a square pipe 36d fixed by welding in a region surrounded by the portion 36a and the pair of wall portions 36b.
The pair of wall portions 36b are erected from the flat plate portion 36a so that the upper end side thereof is slightly inclined so as to approach the other wall portion 36b. Further, the distance between the pair of wall portions 36b is formed to have the same length as the width of the scaffold plate 6. Thereby, when the scaffold board 6 is mounted on the scaffold board holder 36, it can be fixed on the scaffold board holder 36.
The scaffold plate holder 36 is bolted to the upper surface of the upper beam member 42 so that the upper surface of the square pipe 36d is horizontal.
In this embodiment, the scaffold board holder 36 shown in FIG. 2 is provided as a member for fixing the scaffold board 6 to the upper beam members 42 and 52. However, the scaffold board holder 36 has the scaffold board 6 up. It is an example of the member for fixing to the beam members 42 and 52, Comprising: You may employ | adopt the member which consists of another structure suitably.

中央梁枠５は、図４に示すように、中央梁枠体５１を主要構成要素としている。
中央梁枠体５１は、鋼製の丸パイプ状の上梁材５２と、上梁材５２の下方で上梁材５２に平行に延びる鋼製の丸パイプ状の下梁材５３と、上梁材５２と下梁材５３とを架橋して連結する架橋部材５４とが、溶接により一体に形成されてなる。
中央梁枠体５１では、上梁材５２及び下梁材５３が、水平方向において一列のみ配置されている。
上梁材５２及び下梁材５３の長手方向の両端には、中央梁枠５を端部梁枠４に連結するための板体５６が一体に溶接固定されている。板体５６は、上梁材５２及び下梁材５３に対して垂直な略矩形の板体である。板体５６は、板体４６と同様の構成であるため、説明を省略する。 As shown in FIG. 4, the central beam frame 5 includes a central beam frame 51 as a main component.
The central beam frame 51 includes a steel round pipe-shaped upper beam member 52, a steel round pipe-shaped lower beam member 53 extending in parallel to the upper beam member 52 below the upper beam member 52, and an upper beam. A bridge member 54 that bridges and connects the material 52 and the lower beam material 53 is integrally formed by welding.
In the central beam frame 51, the upper beam member 52 and the lower beam member 53 are arranged in only one row in the horizontal direction.
A plate 56 for connecting the central beam frame 5 to the end beam frame 4 is integrally welded to both ends of the upper beam member 52 and the lower beam member 53 in the longitudinal direction. The plate 56 is a substantially rectangular plate perpendicular to the upper beam member 52 and the lower beam member 53. Since the plate body 56 has the same configuration as the plate body 46, the description thereof is omitted.

上梁材５２の上面であって、板体５６よりも長手方向中央寄りの位置の２カ所には、図４に示すように、足場板６を固定するための足場板ホルダー３６が不図示のボルトにより固定されている。
足場板ホルダー３６は、角パイプ３６ｄの上面が水平になるよう、上梁材５２上面にボルト締めされている。
梁枠体３は、中央梁枠５の両端に一対の端部梁枠４が固定されることにより構成される。中央梁枠５と一対の端部梁枠４との間の固定は、板体４６と板体５６とが、不図示の両切りボルトと一対のナット４６ａ，５６ａにより締結されることで、行われる。
図１に示すように、仮設足場１の組み立て時、板体４６と板体５６の連結部の上方には、足場板６の端部付近が配置されている。
このように構成することにより、板体４６と板体５６との連結部が、上方に直接露出しないため、作業員に踏まれて連結剛性が低下することを防止できる。 As shown in FIG. 4, a scaffold plate holder 36 for fixing the scaffold plate 6 is not shown at two positions on the upper surface of the upper beam member 52 and closer to the center in the longitudinal direction than the plate body 56. It is fixed with bolts.
The scaffold plate holder 36 is bolted to the upper surface of the upper beam member 52 so that the upper surface of the square pipe 36d is horizontal.
The beam frame 3 is configured by fixing a pair of end beam frames 4 to both ends of the central beam frame 5. The fixing between the central beam frame 5 and the pair of end beam frames 4 is performed by fastening the plate body 46 and the plate body 56 by a not-shown double-sided bolt and a pair of nuts 46a and 56a. .
As shown in FIG. 1, when the temporary scaffold 1 is assembled, the vicinity of the end portion of the scaffold plate 6 is disposed above the connecting portion of the plate body 46 and the plate body 56.
By comprising in this way, since the connection part of the board 46 and the board 56 is not directly exposed upwards, it can prevent that an operator steps on and a connection rigidity falls.

足場板６は、幅約３０ｃｍからなり、公知の仮設足場で用いられる足場板と同様の構成からなる。なお、足場板６の幅は、本実施形態の仮設足場１が用いられる建物と隣接する建物との間の隙間に応じて、適宜選択可能である。
本実施形態の足場板６は、図１に示すように、長手方向の長さが、端部梁枠４及び中央梁枠５の長手方向の長さに近い長さとされ、端部梁枠４及び中央梁枠５それぞれの上方に一つずつ設置されている。
このように構成することにより、端部梁枠４，中央梁枠５及び足場板６の長さが概略統一され、搬送用のトラックに仮設足場１を載せる際の作業性が向上する。 The scaffold plate 6 has a width of about 30 cm and has the same configuration as the scaffold plate used in a known temporary scaffold. In addition, the width | variety of the scaffold board 6 can be suitably selected according to the clearance gap between the building where the temporary scaffold 1 of this embodiment is used, and an adjacent building.
As shown in FIG. 1, the scaffold plate 6 of the present embodiment has a length in the longitudinal direction that is close to the length in the longitudinal direction of the end beam frame 4 and the central beam frame 5. And one is installed above each of the central beam frames 5.
By configuring in this way, the lengths of the end beam frame 4, the central beam frame 5 and the scaffold plate 6 are approximately unified, and the workability when placing the temporary scaffold 1 on the transport truck is improved.

なお、図５の足場板６´のように、一組の仮設足場１´に含まれる足場板６´の数と端部梁枠４及び中央梁枠５の合計数とを異なる数とし、隣接する足場板６´間の隙間と、端部梁枠４と中央梁枠５とを連結する板体４６，５６との位置を対応させないようにしてもよい。このとき、隣接する足場板６´間の隙間から、端部梁枠４と中央梁枠５とを連結する板体４６，５６が見えなくなる。
図５の例では、足場板６´は４つ設けられ、端部梁枠４と中央梁枠５の合計数が３つであるため、足場板６´の隙間と端部梁枠４と中央梁枠の連結位置とが、互い違いとなっている。
このように構成することにより、端部梁枠４と中央梁枠５の連結位置付近の上方には、足場板６´が長く延びて、隙間に露出しなくなる。端部梁枠４と中央梁枠５の連結位置付近の上方に足場板６´間の隙間が配置される場合よりも、剛性が高められる。 As in the case of the scaffolding plate 6 'in FIG. 5, the number of the scaffolding plates 6' included in the set of temporary scaffolding 1 'is different from the total number of the end beam frame 4 and the central beam frame 5, and adjacent to each other. The positions of the gaps between the scaffolding plates 6 ′ and the plate bodies 46, 56 connecting the end beam frame 4 and the central beam frame 5 may not be made to correspond to each other. At this time, the plates 46 and 56 that connect the end beam frame 4 and the central beam frame 5 cannot be seen from the gap between the adjacent scaffold plates 6 ′.
In the example of FIG. 5, four scaffold plates 6 ′ are provided, and the total number of the end beam frames 4 and the central beam frames 5 is three. Therefore, the clearance between the scaffold plate 6 ′, the end beam frames 4, and the center The connection positions of the beam frames are staggered.
By comprising in this way, scaffolding board 6 'extends long above the vicinity of the connection position of the end beam frame 4 and the center beam frame 5, and is not exposed to a clearance. Rigidity is enhanced as compared with the case where the gap between the scaffolding plates 6 ′ is arranged above the vicinity of the connection position between the end beam frame 4 and the central beam frame 5.

（仮設足場の組み立て方法）
次に、仮設足場１を組み立てる方法について説明する。
隣家と接近して建築された建物のメンテナンスを室外側から行うときには、まず、一対の支柱２を、メンテナンス対象の建物と、隣接する建物との間の隙間のうち、奥側と道路側の地面２カ所に固定する。
次いで、端部梁枠４を、隣接する建物との隙間の奥側の支柱２に隣接した位置に持ち込む。端部梁枠４の係止片４５を、梁枠体３を設置したい高さに対応した係止ホルダー２１に係止させる。
次いで、中央梁枠５を、隣接する建物との隙間に持ち込む。端部梁枠４の板体４６の不図示のボルト孔に通してあった不図示の両切りボルトを、中央梁枠５の板体５６の不図示のボルト孔に差し込み、ナット４６ａ，５６ａで締める。これにより、奥側の支柱２に、奥側の端部梁枠４と中央梁枠５が連結された状態となる。 (Assembling method of temporary scaffold)
Next, a method for assembling the temporary scaffold 1 will be described.
When performing maintenance on a building constructed close to a neighboring house from the outdoor side, first, the pair of support columns 2 are placed on the ground on the back side and the road side in the gap between the building to be maintained and the adjacent building. Fix in two places.
Next, the end beam frame 4 is brought into a position adjacent to the column 2 at the back of the gap with the adjacent building. The locking piece 45 of the end beam frame 4 is locked to the locking holder 21 corresponding to the height at which the beam frame 3 is desired to be installed.
Next, the central beam frame 5 is brought into a gap with an adjacent building. A not-shown double-ended bolt that has been passed through a bolt hole (not shown) of the plate body 46 of the end beam frame 4 is inserted into a bolt hole (not shown) of the plate body 56 of the central beam frame 5 and tightened with nuts 46a and 56a. . Thereby, the end beam frame 4 and the central beam frame 5 are connected to the back column 2.

次いで、もう一つの端部梁枠４を、隣接する建物との隙間を通して、中央梁枠５に隣接した位置に持ち込む。中央梁枠５の板体５６の不図示のボルト孔に通してあった不図示の両切りボルトを、端部梁枠４の板体４６の不図示のボルト孔に差し込み、ナット４６ａ，５６ａで締める。また、端部梁枠４の係止片４５を、奥側の支柱２の係止高さに対応した手前側の支柱２の係止ホルダー２１に係止させる。
これにより、一対の支柱２に、端部梁枠４，中央梁枠５，端部梁枠４が順次連結された状態となる。
次いで、端部梁枠４，中央梁枠５，端部梁枠４のそれぞれに固定された足場板ホルダー３６に、足場板６を載せて、仮設足場１の組み立てを完了する。 Next, the other end beam frame 4 is brought into a position adjacent to the central beam frame 5 through a gap with an adjacent building. A not-shown double-ended bolt that has been passed through a bolt hole (not shown) of the plate 56 of the central beam frame 5 is inserted into a bolt hole (not shown) of the plate 46 of the end beam frame 4 and tightened with nuts 46a and 56a. . Further, the locking piece 45 of the end beam frame 4 is locked to the locking holder 21 of the front column 2 corresponding to the locking height of the back column 2.
Thereby, the end beam frame 4, the central beam frame 5, and the end beam frame 4 are sequentially connected to the pair of support columns 2.
Next, the scaffolding plate 6 is placed on the scaffolding plate holder 36 fixed to each of the end beam frame 4, the central beam frame 5, and the end beam frame 4 to complete the assembly of the temporary scaffold 1.

作業者は、手前側の支柱２近くに配置した脚立等を用いて、手前側の端部梁枠４から足場板６上に上り、室外側から建物のメンテナンス作業を行う。
なお、本実施形態では、図１，図３のように、仮設足場１に、梁枠体３及び足場板６を一組のみ設置した例を示したが、各支柱２の複数の係止ホルダー２１に梁枠体３を係止することにより、複数組の梁枠体３及び足場板６を上下に設置してもよい。例えば、建物の異なる階層に対応する係止ホルダー２１に梁枠体３をそれぞれ設置することにより、各階での作業を円滑に行うことができる。
このように、梁枠体３及び足場板６を上下に複数組設置した場合、異なる高さの足場板６に移動するときには、一旦手前側の支柱２まで戻ってから、異なる高さの足場板６に上るか、一旦建物内に入って、建物内の階段等で昇降し、建物から異なる高さの足場板６に移る。
本実施形態の仮設足場１は、メンテナンス対象の建物と、隣接する建物との隙間に設置されるため、足場板６から直接地面に下りたり、異なる高さの足場板６に直接上り下りしたりするためのスペースが、足場板６と建物の間にないためである。 Using a stepladder or the like disposed near the support column 2 on the near side, the worker goes up on the scaffolding plate 6 from the end beam frame 4 on the near side, and performs maintenance work on the building from the outdoor side.
In the present embodiment, as shown in FIGS. 1 and 3, an example in which only one set of the beam frame 3 and the scaffold plate 6 is installed on the temporary scaffold 1 is shown. A plurality of sets of beam frames 3 and scaffolding plates 6 may be installed up and down by locking the beam frame 3 to 21. For example, the work on each floor can be smoothly performed by installing the beam frames 3 on the locking holders 21 corresponding to different levels of the building.
As described above, when a plurality of sets of the beam frame 3 and the scaffolding plate 6 are installed vertically, when moving to the scaffolding plate 6 having a different height, the scaffolding plate having a different height is once returned to the support column 2 on the near side. Go up to 6 or go inside the building and go up and down on the stairs in the building and move from the building to the scaffolding plate 6 of different height.
Since the temporary scaffold 1 of this embodiment is installed in a gap between a building to be maintained and an adjacent building, the temporary scaffold 1 can be directly descended from the scaffold board 6 to the ground, or can be directly climbed to the scaffold board 6 having a different height. This is because there is no space between the scaffold board 6 and the building.

また、本実施の形態の仮設足場１は、狭小地のメンテナンス対象の建物及び隣接する建物と、足場板６との間に、数ｃｍ〜２０ｃｍ程度までの隙間を持たせて設置される。従って、足場板６と建物の間に、作業員が足場板６から抜け落ちるだけのスペースがないため、仮設足場１は、手摺を備える必要がない。
また、本実施形態では、梁枠体３が、長さ方向に３分割されているが、分割の数はこれに限定されるものではなく、２分割，４分割等、梁枠体３全体の長さと、メンテナンス対象の建物の大きさに応じて、適宜選択可能である。 In addition, the temporary scaffold 1 of the present embodiment is installed with a gap of about several centimeters to 20 cm between a building to be maintained in a narrow area and an adjacent building and the scaffold board 6. Therefore, since there is not enough space between the scaffold board 6 and the building for the operator to fall off the scaffold board 6, the temporary scaffold 1 does not need to be provided with a handrail.
In this embodiment, the beam frame 3 is divided into three in the length direction. However, the number of divisions is not limited to this, and the entire beam frame 3 such as two divisions or four divisions. It can be selected as appropriate according to the length and the size of the building to be maintained.

更に、支柱２を、一直線上に載るように３本以上設置し、その間に梁枠体３をそれぞれ設置してもよい。この構成は、中央に設置した支柱２の両側の係止ホルダー２１に、梁枠体３をそれぞれ連結することにより達成できる。このように構成すると、図１の梁枠体３が、間に支柱２を介して直線上に並ぶため、建物間の隙間が長い場合にも適用できる。
また、３本の支柱２を、直角三角形の頂点に位置するように配置し、直角三角形の直角を挟む２辺を構成するように、二つの梁枠体３を支柱２に取付けてもよい。この構成は、直角三角形の直角の頂点に位置する支柱２に互いに直角に設けられた係止ホルダー２１に、梁枠体３をそれぞれ連結することにより達成できる。このように構成すると、図１の梁枠体３が、支柱２を中心にして垂直に曲がるため、建物間の隙間が垂直に曲がる場合にも適用できる。 Further, three or more support columns 2 may be installed so as to be placed on a straight line, and the beam frame 3 may be installed between them. This configuration can be achieved by connecting the beam frame 3 to the locking holders 21 on both sides of the support column 2 installed in the center. If comprised in this way, since the beam frame 3 of FIG. 1 is located in a straight line via the support | pillar 2 between, it can apply also when the clearance gap between buildings is long.
In addition, the three columns 2 may be arranged so as to be positioned at the apex of the right triangle, and the two beam frame bodies 3 may be attached to the column 2 so as to form two sides sandwiching the right angle of the right triangle. This configuration can be achieved by connecting the beam frames 3 to the locking holders 21 provided at right angles to the columns 2 positioned at the right corners of the right triangle. If comprised in this way, since the beam frame 3 of FIG. 1 will bend | curve vertically centering on the support | pillar 2, it can be applied also when the clearance gap between buildings bends | bents perpendicularly.

１ 仮設足場
２ 支柱
３ 梁枠体
４ 端部梁枠
５ 中央梁枠
６ 足場板
２１ 係止ホルダー
３６ 足場板ホルダー
３６ａ 平板部
３６ｂ 壁部
３６ｃ コの字状部材
３６ｄ 角パイプ
４１ 端部梁枠体
４２，５２ 上梁材
４３，５３ 下梁材
４４，５４ 架橋部材
４５ 係止片
４６，５６ 板体
４６ａ，５６ａ ナット
５１ 中央梁枠体
DESCRIPTION OF SYMBOLS 1 Temporary scaffold 2 Strut 3 Beam frame 4 End beam frame 5 Center beam frame 6 Scaffold plate 21 Locking holder 36 Scaffold plate holder 36a Flat plate portion 36b Wall portion 36c U-shaped member 36d Square pipe 41 End beam frame body 42, 52 Upper beam member 43, 53 Lower beam member 44, 54 Bridge member 45 Locking piece 46, 56 Plate body 46a, 56a Nut 51 Center beam frame

Claims (9)

建物と該建物に隣接する建物との間に設置され、前記建物の作業を行うために用いる仮設足場であって、
間隔を置いて配置された一対の支柱と、該一対の支柱にそれぞれ両端側が連結される梁枠体と、該梁枠体上に固定される足場板と、を備え、
前記梁枠体は、該梁枠体が長手方向に複数に分割された分割梁枠が、相互に連結されてなることを特徴とする仮設足場。 A temporary scaffold that is installed between a building and a building adjacent to the building and used to perform the work of the building;
A pair of struts arranged at intervals, a beam frame body connected to both ends of the pair of struts, and a scaffolding plate fixed on the beam frame body,
The beam frame is a temporary scaffold formed by connecting divided beam frames obtained by dividing the beam frame into a plurality of longitudinal directions. 前記梁枠体は、梁材が、水平方向において一列のみ配置されてなることを特徴とする請求項１記載の仮設足場。   The temporary scaffold according to claim 1, wherein the beam frame is formed by arranging only one row of beam members in the horizontal direction. 前記梁枠体の前記両端側には、前記梁枠体を前記支柱に連結するための連結部が設けられ、
前記支柱は、地面上に立設されると共に、前記梁枠体を前記支柱に連結するための被連結部を、前記支柱の延長方向に沿って複数備えていることを特徴とする請求項１又は２記載の仮設足場。 A connecting portion for connecting the beam frame to the support column is provided on both ends of the beam frame,
The said support | pillar is erected on the ground, and is provided with multiple to-be-connected parts for connecting the said beam frame to the said support | pillar along the extension direction of the said support | pillar. Or the temporary scaffold of 2 description. 前記分割梁枠には、該分割梁枠が他の前記分割梁枠と連結される端部に、前記梁材に対して角度を持った板体が固定され、
該板体は、前記分割梁枠と前記他の分割梁枠とを連結するボルト孔を備えていることを特徴とする請求項２又は３記載の仮設足場。 In the split beam frame, a plate body having an angle with respect to the beam material is fixed to an end portion where the split beam frame is connected to the other split beam frame,
The temporary scaffold according to claim 2 or 3, wherein the plate body includes a bolt hole that connects the divided beam frame and the other divided beam frame. 前記分割梁枠はそれぞれ、前記足場板を固定するための固定部材を少なくとも一対備え、
前記足場板は、前記分割梁枠毎に設けられ、
前記板体の上方には、前記足場板が配置されていることを特徴とする請求項４記載の仮設足場。 Each of the divided beam frames includes at least a pair of fixing members for fixing the scaffold plate,
The scaffold plate is provided for each of the divided beam frames,
The temporary scaffold according to claim 4, wherein the scaffold plate is disposed above the plate body. 前記足場板は、幅が５０ｃｍ以下であることを特徴とする請求項１乃至５いずれか記載の仮設足場。   The temporary scaffold according to any one of claims 1 to 5, wherein the scaffold plate has a width of 50 cm or less. 前記分割梁枠は、上方の前記梁材と、該上方の梁材に対向して下方に設けられた下方の前記梁材と、該下方の梁材と前記上方の梁材とを橋渡す架橋部材と、が一体に形成されてなることを特徴とする請求項２乃至６いずれか記載の仮設足場。   The divided beam frame includes a bridge that bridges the upper beam member, the lower beam member provided below and opposed to the upper beam member, and the lower beam member and the upper beam member. The temporary scaffold according to any one of claims 2 to 6, wherein the member is integrally formed. 建物と該建物に隣接する建物との間に、前記建物の作業を行うために用いる仮設足場を設置する仮設足場の組み立て方法であって、
一対の支柱を、相互に間隔を置いて地面上に設置する工程と、
前記一対の支柱に、長手方向に複数に分割された分割梁枠が、相互に連結されてなる梁枠体の両端側を連結する連結工程と、
前記梁枠体上に足場板を固定する足場板固定工程と、を備えることを特徴とする仮設足場の組み立て方法。 A method for assembling a temporary scaffolding, wherein a temporary scaffolding used for performing work on the building is installed between a building and a building adjacent to the building,
Installing a pair of struts on the ground at a distance from each other;
A connecting step of connecting the beam ends that are divided into a plurality of divided beam frames in the longitudinal direction to the pair of support columns and connected to each other,
A method for assembling a temporary scaffold, comprising: a scaffold plate fixing step of fixing a scaffold plate on the beam frame. 前記連結工程では、
一方の前記支柱に、前記分割梁枠のうち、最初の前記分割梁枠を連結する工程と、
前記支柱に既に連結された前記分割梁枠に、次の前記分割梁枠を順次連結する工程と、
他方の前記支柱に、最後の前記分割梁枠を連結する工程と、を行い、
前記足場板固定工程では、前記分割梁枠毎に、前記足場板を固定することを特徴とする請求項８記載の仮設足場の組み立て方法。 In the connecting step,
Connecting the first split beam frame among the split beam frames to one of the columns;
Sequentially connecting the next divided beam frame to the divided beam frame already connected to the column;
Connecting the last split beam frame to the other support column, and
The said scaffold board fixing process WHEREIN: The said scaffold board is fixed for every said divided beam frame, The assembly method of the temporary scaffold of Claim 8 characterized by the above-mentioned.

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