JP2021008713A - Support structure for temporary handrail - Google Patents

Support structure for temporary handrail Download PDF

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JP2021008713A
JP2021008713A JP2019121650A JP2019121650A JP2021008713A JP 2021008713 A JP2021008713 A JP 2021008713A JP 2019121650 A JP2019121650 A JP 2019121650A JP 2019121650 A JP2019121650 A JP 2019121650A JP 2021008713 A JP2021008713 A JP 2021008713A
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plate
shaft
support column
upper plate
temporary handrail
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JP7349677B2 (en
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毅 柳
Takeshi Yanagi
毅 柳
智裕 片山
Tomohiro Katayama
智裕 片山
公彦 藤本
Kimihiko Fujimoto
公彦 藤本
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Sekisui House Ltd
Fujimoto Kogyo KK
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Sekisui House Ltd
Fujimoto Kogyo KK
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Abstract

To provide a support structure for a temporary handrail capable of eliminating the need for replacing the whole handrail support when a shaft is deformed, facilitating the installation of a baseboard, and arranging a handrail pipe without interfering with other members.SOLUTION: A support structure 1 of a temporary handrail comprises: a shaft 6 with a male thread 6a formed in the upper part and an insertion part 6b formed in the lower part to be inserted into a beam through-hole 2a formed in a beam 2; a joint part 7 where an insertion hole 73 is formed to insert the male threaded part 6a of the shaft 6; a pair of pinching nuts 12a, 12b which screw onto the male thread 6a of the shaft 6 and pinch a part of the joint part 7; and a support body 8 whose lower end is fixed to the joint part 7.SELECTED DRAWING: Figure 1

Description

本発明は、主として多層階建築物の建築現場において、建物外周部周辺、階段施工部や吹き抜け施工部等の開口部周辺、その他の墜転落危険部位周辺に設置する仮設手摺に関する。 The present invention mainly relates to a temporary handrail to be installed around the outer periphery of a building, around an opening such as a staircase construction part or a stairwell construction part, or around another fall risk part at a construction site of a multi-story building.

従来より、２階建て以上の多層階建築物において、作業員の転墜落を防止する為に建物の周縁となる部分に仮設手摺が設けられる。このような仮設手摺の施工性や安全性を向上させる為に、Ｈ形鋼の梁に着脱可能に立設される手摺支柱と、手摺支柱の間に差し渡される手摺パイプとを備えた仮設手摺であって、手摺支柱の下端部に梁のフランジに取り付けるための取付体が一体に形成されており、取付体は、梁上に載置されるプレートと、このプレートから下方に向かって突出して梁の上下のフランジに形成された梁穴に跨って挿脱可能に差し込まれる差し込みシャフトと、を備えた構成が開示されている（特許文献１参照）。 Conventionally, in a multi-story building having two or more floors, a temporary handrail is provided on the peripheral portion of the building in order to prevent the worker from falling. In order to improve the workability and safety of such temporary handrails, temporary handrails provided with handrail columns that are detachably erected on H-shaped steel beams and handrail pipes that are passed between the handrail columns. A mounting body for mounting on the flange of the beam is integrally formed at the lower end of the handrail column, and the mounting body is a plate mounted on the beam and projects downward from this plate. A configuration is disclosed that includes an insertion shaft that is removably inserted across a beam hole formed in the upper and lower flanges of the beam (see Patent Document 1).

特開２０１０−１８５１８５号公報Japanese Unexamined Patent Publication No. 2010-185185

ところで、上述のような手摺支柱の下端に形成されたシャフトを梁穴に差し込むことで手摺支柱を立設させる構成においては、作業員が仮設手摺に当るなどして手摺支柱に加わわった荷重が、梁穴を支点としてシャフトに大きな荷重として作用する。そのため手摺支柱の下端に形成されているシャフトが特に変形しやすいが、手摺支柱の本体とシャフトとは一体にに形成されているので、シャフトが変形した場合には、手摺支柱の全体を交換する必要があった。また、手摺支柱の下端には幅木を設置する必要があるが、幅木を設置するための金具を取り付ける必要があるなど、作業が煩わしかった。また、手摺パイプが梁の上に配置されることとなり、梁上に設置される他の部材と干渉して、手摺パイプを取り付けることが困難となる場合があった。 By the way, in the configuration in which the handrail support is erected by inserting the shaft formed at the lower end of the handrail support into the beam hole as described above, the load applied to the handrail support by the worker hitting the temporary handrail is applied. , Acts as a large load on the shaft with the beam hole as the fulcrum. Therefore, the shaft formed at the lower end of the handrail strut is particularly easily deformed, but since the main body of the handrail strut and the shaft are integrally formed, if the shaft is deformed, the entire handrail strut is replaced. I needed it. In addition, although it is necessary to install a skirting board at the lower end of the handrail column, the work is troublesome because it is necessary to attach metal fittings for installing the skirting board. In addition, the handrail pipe is arranged on the beam, which may interfere with other members installed on the beam, making it difficult to attach the handrail pipe.

そこで、本発明は、シャフトが変形した場合に手摺支柱全体を交換する必要がなく、また、幅木の設置が容易であり、手摺パイプを他の部材と干渉することなく配置することができる仮設手摺の支柱構造を提供することを目的とする。 Therefore, in the present invention, it is not necessary to replace the entire handrail column when the shaft is deformed, the skirting board can be easily installed, and the handrail pipe can be arranged without interfering with other members. It is an object of the present invention to provide a pillar structure of a handrail.

本発明の仮設手摺の支柱構造は、上部に雄ネジ部が形成され、下部に梁に形成された梁貫通孔に挿入される挿入部が形成されるシャフトと、前記シャフトの前記雄ネジ部が挿入される挿入孔が形成される接合部と、前記シャフトの前記雄ネジ部に螺合し、前記接合部の一部を挟持する一対の挟持ナットと、前記接合部に下端が固定される支柱本体と、を備えることを特徴としている。 In the support column structure of the temporary handrail of the present invention, a shaft having a male screw portion formed at the upper portion and an insertion portion inserted into a beam through hole formed in the beam at the lower portion and the male screw portion of the shaft are formed. A joint on which an insertion hole to be inserted is formed, a pair of holding nuts that are screwed into the male screw portion of the shaft and hold a part of the joint, and a strut whose lower end is fixed to the joint. It is characterized by having a main body.

本発明の仮設手摺の支柱構造は、前記シャフトの前記雄ネジ部に螺合する下ナットを更に備え、前記接合部は、水平な上板と、前記上板に平行で前記梁の上面に当接する下板と、当該上板及び当該下板を連結する鉛直板と、を有し、前記上板及び前記下板の上方から見て重なる位置に前記挿入孔が形成され、前記雄ネジ部に螺合する前記一対の挟持ナットが前記上板を挟持するとともに、前記下ナットが前記下板の上面に圧接することを特徴としている。 The strut structure of the temporary handrail of the present invention further includes a lower nut screwed into the male screw portion of the shaft, and the joint portion is in contact with the horizontal upper plate and the upper surface of the beam parallel to the upper plate. It has a lower plate in contact with the upper plate and a vertical plate connecting the upper plate and the lower plate, and the insertion hole is formed at a position where the upper plate and the lower plate overlap each other when viewed from above, and the male screw portion is formed. The pair of sandwiching nuts to be screwed sandwich the upper plate, and the lower nut presses against the upper surface of the lower plate.

本発明の仮設手摺の支柱構造は、前記鉛直板は前記梁の幅方向の中央よりも屋外側に形成されるものであり、前記下板は前記鉛直板の下端から屋外側に延びるとともに、前記上板は前記鉛直板の上端の屋内側及び屋外側に延びて形成されており、前記梁と前記上板との間の距離は、前記梁上に配置される床版の厚さ以上であり、前記上板の前記鉛直板よりも屋内側の位置に前記支柱本体が固定されることを特徴としている。 In the support column structure of the temporary handrail of the present invention, the vertical plate is formed on the outdoor side of the center in the width direction of the beam, and the lower plate extends from the lower end of the vertical plate to the outdoor side and is described as described above. The upper plate is formed so as to extend to the indoor side and the outdoor side of the upper end of the vertical plate, and the distance between the beam and the upper plate is equal to or larger than the thickness of the floor slab arranged on the beam. The pillar body is fixed at a position indoors of the vertical plate of the upper plate.

本発明の仮設手摺の支柱構造は、前記支柱本体の下端は前記上板の上面に固定されるとともに、前記上板の一端が上方に折れ曲がって立ち上がり部を形成し、前記支柱本体と前記立ち上がり部との間に幅木が挿入されるものであって、前記立ち上がり部に固定されて、前記支柱本体に圧接する弾性体が設けられることを特徴としている。 In the support column structure of the temporary handrail of the present invention, the lower end of the support column body is fixed to the upper surface of the upper plate, and one end of the upper plate is bent upward to form a rising portion, and the support column body and the rising portion are formed. A skirting board is inserted between the skirting board and the skirting board, and an elastic body is provided which is fixed to the rising portion and press-contacts the support column body.

本発明の仮設手摺の支柱構造は、前記支柱本体は、水平材を保持するクランプを有し、前記支柱本体は、上方から見て前記梁に重なる位置に立設されるとともに、前記クランプは、上方から見て前記梁に重ならないように前記支柱本体から突出することを特徴としている。 In the support column structure of the temporary handrail of the present invention, the support column body has a clamp for holding a horizontal member, the support column body is erected at a position overlapping the beam when viewed from above, and the clamp is It is characterized in that it protrudes from the support column body so as not to overlap the beam when viewed from above.

本発明の仮設手摺の支柱構造によると、支柱本体の下端が固定される接合部を挟持ナットが挟持することによって、シャフトが接合部に固定される構成であるので、挟持ナットを緩めることで接合部からシャフトを取り外すことができ、シャフトを支柱本体に対して着脱自在とすることができる。したがって、仮設手摺の手摺パイプや支柱本体に作業者や作業治具が当って、支柱本体に荷重が加わり、梁の梁貫通孔に挿入されているシャフトが変形した場合でも、接合部からシャフトを取り外してシャフトのみ交換することができ、支柱本体全体を交換する必要がない。 According to the column structure of the temporary handrail of the present invention, the shaft is fixed to the joint by sandwiching the joint where the lower end of the column body is fixed by the sandwiching nut. Therefore, the shaft is fixed to the joint by loosening the sandwiching nut. The shaft can be removed from the portion, and the shaft can be detached from the support column body. Therefore, even if a worker or a work jig hits the handrail pipe or the column body of the temporary handrail and a load is applied to the column body and the shaft inserted in the beam through hole of the beam is deformed, the shaft can be removed from the joint. It can be removed and only the shaft can be replaced, eliminating the need to replace the entire strut body.

本発明の仮設手摺の支柱構造によると、接合部が水平な上板と下板とを鉛直板で連結して形成されており、上板及び下板の上方から見て重なる位置に形成された挿入孔にシャフトの雄ネジ部が差し込まれて、雄ネジ部に螺合する挟持ナットが上板を挟持するとともに、下ナットが下板の上面に圧接するので、シャフトを接合部に安定的に接合することができ、支柱本体を強固に立設させることができる。 According to the support column structure of the temporary handrail of the present invention, the joint portion is formed by connecting the horizontal upper plate and the lower plate with a vertical plate, and is formed at a position where the upper plate and the lower plate overlap each other when viewed from above. The male screw part of the shaft is inserted into the insertion hole, and the holding nut screwed into the male screw part holds the upper plate and the lower nut presses against the upper surface of the lower plate, so that the shaft is stably attached to the joint. It can be joined, and the pillar body can be erected firmly.

本発明の仮設手摺の支柱構造によると、鉛直板が梁の幅方向の中央よりも屋外側に形成されており、下板は鉛直板の下端から屋外側に延びるとともに、上板は鉛直板の上端の屋内側及び屋外側に延びて形成されており、梁と上板との間の距離は、梁上に配置される床版の厚さ以上であり、上板の鉛直板よりも屋内側の位置に支柱本体が固定されるので、梁の幅方向の中央よりも屋内側には床版の端縁部を載置するスペースが形成されることとなり、支柱の下端が床版に干渉することなく、床版の上に支柱を立設させることができる。 According to the support column structure of the temporary handrail of the present invention, the vertical plate is formed on the outdoor side of the center in the width direction of the beam, the lower plate extends from the lower end of the vertical plate to the outdoor side, and the upper plate is the vertical plate. It is formed so as to extend to the indoor side and the outdoor side of the upper end, and the distance between the beam and the upper plate is equal to or greater than the thickness of the floor slab placed on the beam, and is on the indoor side of the vertical plate of the upper plate. Since the main body of the support is fixed at the position of, a space for placing the edge of the floor slab is formed on the indoor side of the center in the width direction of the beam, and the lower end of the support interferes with the floor slab. The columns can be erected on the floor slab without any need.

本発明の仮設手摺の支柱構造によると、支柱本体の下端は上板の上面に固定されており、上板の一端が上方に折れ曲がって立ち上がり部を形成し、支柱本体と立ち上がり部との間に幅木が挿入されるものであって、立ち上がり部に固定されて、支柱本体に圧接する弾性体が設けられるので、幅木を簡単にがたつき無く固定することができる。また、上板から折れ曲がる立ち上がり部と支柱本体とで幅木を挿入する間隙が形成されているので、別途幅木を固定するための部材を取り付ける必要がなく、施工性を高めることができる。 According to the support column structure of the temporary handrail of the present invention, the lower end of the support column main body is fixed to the upper surface of the upper plate, and one end of the upper plate is bent upward to form a rising portion, and between the support column main body and the rising portion. Since the skirting board is inserted and fixed to the rising portion and an elastic body that press-contacts the support column body is provided, the skirting board can be easily fixed without rattling. Further, since a gap for inserting the skirting board is formed between the rising portion bent from the upper plate and the main body of the support column, it is not necessary to separately attach a member for fixing the skirting board, and the workability can be improved.

本発明の仮設手摺の支柱構造によると、支柱本体には、水平材を保持するクランプが設けられており、支柱本体は、上方から見て梁に重なる位置に立設されるとともに、クランプは、上方から見て梁に重ならないように支柱本体から突出して形成されているので、水平材が梁とは重ならないように配置されることとなり、梁上に設置される柱などの他の部材と水平材とが干渉することなく、単純な構成で水平材を配置することができ、部品点数の削減や施工省力化を図ることができる。 According to the support structure of the temporary handrail of the present invention, the support body is provided with a clamp for holding the horizontal member, the support body is erected at a position overlapping the beam when viewed from above, and the clamp is Since it is formed so as to protrude from the column body so that it does not overlap the beam when viewed from above, the horizontal member is arranged so that it does not overlap the beam, and with other members such as columns installed on the beam. The horizontal members can be arranged in a simple configuration without interfering with the horizontal members, and the number of parts can be reduced and the construction labor can be saved.

仮設手摺の支柱構造の全体構成を示す側面図。The side view which shows the whole structure of the support column structure of a temporary handrail. 仮設手摺の支柱構造の全体構成を示す斜視図。The perspective view which shows the whole structure of the support column structure of a temporary handrail. 仮設手摺の支柱構造のクランプ、接合部、及びシャフトの構成を説明する拡大図。The enlarged view explaining the structure of the clamp, the joint part, and the shaft of the support structure of a temporary handrail. 仮設手摺の支柱構造の接合部からシャフトを取り外した状態を説明する側面図。The side view explaining the state which the shaft is removed from the joint part of the support structure of a temporary handrail. 仮設手摺の支柱構造の接合部からシャフトを取り外した状態を説明する拡大図。An enlarged view illustrating a state in which the shaft is removed from the joint of the column structure of the temporary handrail. 仮設手摺の支柱構造のシャフトを梁に設けられた梁貫通孔に挿入する状態を説明する斜視図。The perspective view explaining the state which inserts the shaft of the support | support structure of a temporary handrail into a beam through hole provided in a beam. 仮設手摺の支柱構造を梁に固定した状態を説明する側面図。The side view explaining the state which fixed the support column structure of a temporary handrail to a beam. 仮設手摺の支柱構造を梁に固定した状態を説明する斜視図。The perspective view explaining the state which fixed the support column structure of a temporary handrail to a beam. 仮設手摺の支柱構造に幅木を取り付ける状態を説明する図。The figure explaining the state which attaches the skirting board to the support structure of a temporary handrail. 支柱本体のクランプに水平材を固定して仮設手摺を完成させた状態を説明する斜視図。The perspective view explaining the state which fixed the horizontal member to the clamp of the support main body, and completed the temporary handrail.

以下、本発明の仮設手摺の支柱構造１の実施形態について、各図を参照しつつ説明する。本実施形態の仮設手摺の支柱構造１は、たとえば住宅などの多層階建築物の建築現場において、建物外周部周辺、階段施工部や吹き抜け施工部等の開口部周辺、その他の墜転落危険部位に架設されている梁２の上に設置される仮設手摺３に用いられる支柱構造である。仮設手摺３が設置される梁２は、図６に示すように、フランジ４ａ，４ｂを上下に水平に配置し、長手方向に沿った中央部同士をウエブ５で連結したＨ形鋼からなる。梁２の上下のフランジ４ａ，４ｂにはウエブ５を挟んで両側に長手方向に沿って間隔をあけた複数の梁貫通孔２ａが形成されている。上側のフランジ４ａの梁貫通孔２ａと下側のフランジ４ｂの梁貫通孔２ａとは、上方から見て重なる位置にそれぞれ形成されている。 Hereinafter, an embodiment of the support column structure 1 of the temporary handrail of the present invention will be described with reference to each figure. The column structure 1 of the temporary handrail of the present embodiment is used, for example, at the construction site of a multi-story building such as a house, in the vicinity of the outer periphery of the building, around the openings such as the staircase construction part and the atrium construction part, and other fall risk parts. It is a strut structure used for a temporary handrail 3 installed on an erected beam 2. As shown in FIG. 6, the beam 2 on which the temporary handrail 3 is installed is made of H-shaped steel in which flanges 4a and 4b are arranged vertically and horizontally, and the central portions along the longitudinal direction are connected by a web 5. The upper and lower flanges 4a and 4b of the beam 2 are formed with a plurality of beam through holes 2a spaced apart from each other in the longitudinal direction on both sides of the web 5. The beam through hole 2a of the upper flange 4a and the beam through hole 2a of the lower flange 4b are formed at overlapping positions when viewed from above.

仮設手摺の支柱構造１は、図１及び図２に示すように、フランジ４ａ，４ｂの梁貫通孔２ａに挿入されるシャフト６と、シャフト６の上部に固定される接合部７と、接合部７に下端が固定されて接合部７から上方に立設される支柱本体８とを備えている。また、仮設手摺の支柱構造１は、支柱本体８の下端に沿って幅木９を挿入して固定する幅木挿入部１０が設けられている。 As shown in FIGS. 1 and 2, the support column structure 1 of the temporary handrail includes a shaft 6 inserted into the beam through hole 2a of the flanges 4a and 4b, a joint portion 7 fixed to the upper portion of the shaft 6, and a joint portion. It is provided with a support main body 8 whose lower end is fixed to 7 and which is erected above the joint portion 7. Further, the support column structure 1 of the temporary handrail is provided with a skirting board insertion portion 10 for inserting and fixing the skirting board 9 along the lower end of the support column main body 8.

シャフト６は、図３から図５に示すように、上部に雄ネジ部６ａが形成され、下部に梁２に形成された梁貫通孔２ａに挿入される挿入部６ｂが形成された円柱形状の金属製丸棒材である。シャフト６の挿入部６ｂは梁２の上下のフランジ４ａ，４ｂの間の距離よりも長く形成されており、挿入部６ｂを上下のフランジ４ａ，４ｂに形成された梁貫通孔２ａに差し込んだときに、当該挿入部６ｂの下端が下側のフランジ４ｂよりも下方へ突出する。 As shown in FIGS. 3 to 5, the shaft 6 has a cylindrical shape in which a male screw portion 6a is formed in the upper portion and an insertion portion 6b inserted into the beam through hole 2a formed in the beam 2 is formed in the lower portion. It is a metal round bar material. The insertion portion 6b of the shaft 6 is formed longer than the distance between the upper and lower flanges 4a and 4b of the beam 2, and when the insertion portion 6b is inserted into the beam through holes 2a formed in the upper and lower flanges 4a and 4b. In addition, the lower end of the insertion portion 6b projects downward from the lower flange 4b.

接合部７は、水平な上板７０と、前記上板７０に平行で梁２の上側のフランジ４ａに当接する下板７１と、当該上板７０及び下板７１を連結する鉛直板７２と、を有している。鉛直板７２は梁２上に固定される際に、梁２の幅方向の中央よりも屋外側に配置される平板状であり、この鉛直板７２の下端から屋外側に向かって下板７１が延びている。また、鉛直板７２の上端には、上板７０が屋内側及び屋外側に延びて形成されている。梁２の上側のフランジ４ａと上板７０との間の距離は梁２に載置される床版１１の厚さよりも長く、梁２の上側のフランジ４ａの屋内側の部分に床版１１を設置したときに、上板７０が床版１１に干渉することがない。上板７０及び下板７１の上方から見て重なる位置にはそれぞれ挿入孔７３が形成され、シャフト６の雄ネジ部６ａが挿入可能となっている。 The joint portion 7 includes a horizontal upper plate 70, a lower plate 71 that is parallel to the upper plate 70 and abuts on the upper flange 4a of the beam 2, and a vertical plate 72 that connects the upper plate 70 and the lower plate 71. have. When the vertical plate 72 is fixed on the beam 2, it has a flat plate shape that is arranged on the outdoor side of the center in the width direction of the beam 2, and the lower plate 71 extends from the lower end of the vertical plate 72 toward the outdoor side. It is extending. Further, an upper plate 70 is formed at the upper end of the vertical plate 72 extending to the indoor side and the outdoor side. The distance between the upper flange 4a of the beam 2 and the upper plate 70 is longer than the thickness of the floor slab 11 placed on the beam 2, and the floor slab 11 is placed on the indoor side portion of the upper flange 4a of the beam 2. When installed, the upper plate 70 does not interfere with the floor slab 11. Insertion holes 73 are formed at positions where the upper plate 70 and the lower plate 71 overlap each other when viewed from above, and the male screw portion 6a of the shaft 6 can be inserted.

雄ネジ部６ａには一対の挟持ナット１２ａ，１２ｂと下ナット１２ｃとが螺合している。一対の挟持ナット１２ａ，１２ｂは、接合部７の雄ネジ部６ａに螺着されて上板７０に上下から挟着して、上板７０とシャフト６とを接合している。また、下ナット１２ｃは雄ネジ部６ａに螺着されて下板７１の上面に圧接している。このように、一対の挟持ナット１２ａ，１２ｂ及び下ナット１２ｃによって雄ネジ部６ａが上板７０及び下板７１の挿入孔７３に挿入された状態で固定されることで、シャフト６と接合部７とを強固に接合することができ、支柱本体８をガタツキ無く安全に固定することができる。そして、挟持ナット１２ａ，１２ｂ及び下ナット１２ｃによってネジ固定されているので、挟持ナット１２ａ，１２ｂ及び下ナット１２ｃを緩めることで、シャフト６と接合部７との接合を解除し、接合部７からシャフト６を取り外すことができる。したがって、仮設手摺３の手摺や中桟などの水平材１３や支柱本体８に作業者や作業治具が当って、支柱本体８に荷重が加わり、梁２の梁貫通孔２ａに挿入されているシャフト６が変形した場合でも、接合部７からシャフト６を取り外してシャフト６のみ交換することができ、支柱本体８全体を交換する必要がない。 A pair of holding nuts 12a and 12b and a lower nut 12c are screwed into the male screw portion 6a. The pair of holding nuts 12a and 12b are screwed to the male screw portion 6a of the joint portion 7 and sandwiched from above and below to the upper plate 70 to join the upper plate 70 and the shaft 6. Further, the lower nut 12c is screwed to the male screw portion 6a and is pressed against the upper surface of the lower plate 71. In this way, the male screw portion 6a is fixed in the state of being inserted into the insertion holes 73 of the upper plate 70 and the lower plate 71 by the pair of holding nuts 12a and 12b and the lower nut 12c, whereby the shaft 6 and the joint portion 7 are fixed. Can be firmly joined, and the support column main body 8 can be safely fixed without rattling. Then, since they are screwed by the holding nuts 12a and 12b and the lower nut 12c, the joint between the shaft 6 and the joint portion 7 is released by loosening the holding nuts 12a and 12b and the lower nut 12c, and the joint portion 7 is released from the joint portion 7. The shaft 6 can be removed. Therefore, a worker or a work jig hits the horizontal member 13 such as the handrail or the center rail of the temporary handrail 3 or the support column body 8, and a load is applied to the support column body 8 to be inserted into the beam through hole 2a of the beam 2. Even if the shaft 6 is deformed, the shaft 6 can be removed from the joint portion 7 and only the shaft 6 can be replaced, and it is not necessary to replace the entire support column body 8.

支柱本体８は、本実施形態においては、金属製丸パイプで形成された長尺な鉛直材である。なお、支柱本体８の形状は丸パイプに限定されるものではなく、例えば角パイプであっても良い。また、本実施形態においては支柱本体８は１本の丸パイプで形成したが、一方が他方に挿入可能な２本の長尺な筒材として、一方の筒材を出し入れすることで支柱本体８を伸縮させる構成としてもよい。支柱本体８は、接合部７の上板７０の鉛直板７２よりも屋内側の位置に下端が溶接によって固定されて立設されている。支柱本体８の屋外側で上板７０の上面には平板状の補強プレート１４が溶接されており、支柱本体８と接合部７との間の接合を補強している。 In the present embodiment, the support column main body 8 is a long vertical material formed of a metal round pipe. The shape of the support column 8 is not limited to the round pipe, and may be, for example, a square pipe. Further, in the present embodiment, the support column body 8 is formed of one round pipe, but the support column body 8 is formed by inserting and removing one tube material as two long tube members in which one can be inserted into the other. May be configured to expand and contract. The support column main body 8 is erected with its lower end fixed by welding at a position on the indoor side of the vertical plate 72 of the upper plate 70 of the joint portion 7. A flat plate-shaped reinforcing plate 14 is welded to the upper surface of the upper plate 70 on the outdoor side of the column main body 8 to reinforce the joint between the column main body 8 and the joint portion 7.

支柱本体８は、図１及び図２に示すように、高さ方向の中間位置と、高さ方向の上端部とにそれぞれクランプ１５を有する。クランプ１５は図３に示すように、支柱本体８の丸パイプに固定され半円形の受け部１５ｄを有する基材１５ａと、基材１５ａに下端がヒンジを介して開閉自在に固定されたＣ型の固定片１５ｂと、固定片１５ｂの上端と基材１５ａとを連結する着脱可能なボルト１５ｃとを有しており、ボルト１５ｃを締めて固定片１５ｂの上端を基材１５ａに固定したときに受け部１５ｄと固定片１５ｂとで円形孔１５ｅが形成される。支柱本体８は、図６に示すように、上下方向に梁２に重なる位置における接合部７の上板７０に立設されており、クランプ１５は梁２の屋内側に突出している。円形孔１５ｅには、図１０に示すように、円筒状の水平材１３が挿入されて固定され、上下２本の水平材１３で手摺及び中桟を形成している。クランプ１５が上下方向に梁２に重なることが無く梁２の屋内側に突出していることで、梁２の上に設置される図示しない柱や外壁パネルを梁２にとめ付ける外壁ファスナーなどの部材が水平材１３と干渉することがなく、水平材１３を単純な構成の円筒状に形成することができ、部品点数の削減や施工省力化を図ることができる。 As shown in FIGS. 1 and 2, the support column main body 8 has clamps 15 at an intermediate position in the height direction and an upper end portion in the height direction, respectively. As shown in FIG. 3, the clamp 15 has a base material 15a fixed to a round pipe of a support column body 8 and having a semicircular receiving portion 15d, and a C-type having a lower end fixed to the base material 15a so as to be openable and closable via a hinge. When the fixing piece 15b of the above and the detachable bolt 15c for connecting the upper end of the fixing piece 15b and the base material 15a are provided and the upper end of the fixing piece 15b is fixed to the base material 15a by tightening the bolt 15c. A circular hole 15e is formed by the receiving portion 15d and the fixing piece 15b. As shown in FIG. 6, the support column main body 8 is erected on the upper plate 70 of the joint portion 7 at a position overlapping the beam 2 in the vertical direction, and the clamp 15 projects toward the indoor side of the beam 2. As shown in FIG. 10, a cylindrical horizontal member 13 is inserted into and fixed to the circular hole 15e, and the upper and lower horizontal members 13 form a handrail and a center rail. Since the clamp 15 does not overlap the beam 2 in the vertical direction and protrudes to the indoor side of the beam 2, a member such as an outer wall fastener that fastens a pillar or an outer wall panel (not shown) installed on the beam 2 to the beam 2. The horizontal member 13 does not interfere with the horizontal member 13, and the horizontal member 13 can be formed into a cylindrical shape having a simple structure, so that the number of parts can be reduced and the construction labor can be saved.

接合部７の上板７０の屋内側の端部は、図３に示すように、上方に折れ曲がって立ち上がり部１６を形成している。立ち上がり部１６には弾性体１７が固定されており、当該弾性体１７は支柱本体８に圧接している。弾性体１７はトーションバネであり、立ち上がり部１６から支柱本体８に向かって斜め下方に延びて形成されている。この支柱本体８と立ち上がり部１６との間隙が平板状の幅木９を挿入する幅木挿入部１０となっている。幅木挿入部１０に挿入される幅木９は、図９及び図１０に示すように、弾性体１７によって支柱本体８側に押し付けられることとなり、挿入するだけでがたつき無く簡単に固定することができ、例えば図示しない建材や施工冶具の落下を防止することができる。なお、幅木挿入部１０は、支柱本体８の屋内側であり、梁２よりも屋内側に配置されており、幅木挿入部１０に挿入された幅木９が、梁２の上に設置される図示しない柱や外壁パネルを梁２にとめ付ける外壁ファスナーなどの部材と干渉することがなく、幅木９を単純な平板状に形成しても簡単にとめ付けることができ、部品点数の削減や施工省力化を図ることができる。また、幅木挿入部１０が上板７０の立ち上がり部１６と支柱本体８とで形成されているので、別途、幅木９を固定するための部材を支柱や梁２に固定する必要がなく、施工性に優れる。 As shown in FIG. 3, the indoor end of the upper plate 70 of the joint portion 7 is bent upward to form a rising portion 16. An elastic body 17 is fixed to the rising portion 16, and the elastic body 17 is in pressure contact with the support column main body 8. The elastic body 17 is a torsion spring, and is formed so as to extend diagonally downward from the rising portion 16 toward the support column main body 8. The gap between the support column main body 8 and the rising portion 16 is a skirting board insertion portion 10 into which a flat plate-shaped skirting board 9 is inserted. As shown in FIGS. 9 and 10, the skirting board 9 to be inserted into the skirting board insertion portion 10 is pressed against the support column main body 8 side by the elastic body 17, and is easily fixed without rattling just by inserting it. For example, it is possible to prevent the building materials and construction jigs (not shown) from falling. The skirting board insertion portion 10 is on the indoor side of the column main body 8 and is arranged on the indoor side of the beam 2, and the skirting board 9 inserted into the skirting board insertion portion 10 is installed on the beam 2. It does not interfere with members such as outer wall fasteners that fasten columns and outer wall panels (not shown) to the beam 2, and even if the skirting board 9 is formed into a simple flat plate, it can be easily fastened, and the number of parts is increased. It is possible to reduce the amount of labor and save labor in construction. Further, since the skirting board insertion portion 10 is formed by the rising portion 16 of the upper plate 70 and the support column main body 8, it is not necessary to separately fix a member for fixing the skirting board 9 to the support column or the beam 2. Excellent workability.

以上のような仮設手摺の支柱構造１を施工する際には、図１及び図２に示すように、予め接合部７の上板７０及び下板７１の挿入孔７３にシャフト６の雄ネジ部６ａを挿入して挟持ナット１２ａ，１２ｂ及び下ナット１２ｃで固定しておく。そして、図６に示すように、Ｈ形鋼の梁２の上下のフランジ４ａ，４ｂに形成されている梁貫通孔２ａにシャフト６の挿入部６ｂを挿入し、図７及び図８に示すように、接合部７の下板７１を梁２の上側のフランジ４ａの上面に載置させる。シャフト６の挿入部６ｂの下端は下側のフランジ４ｂよりも下方に突出し、上下の梁貫通孔２ａに挿入されるので、シャフト６に接合された接合部７の上に立設されている支柱本体８ががたつき無く立設される。 When constructing the column structure 1 of the temporary handrail as described above, as shown in FIGS. 1 and 2, the male screw portion of the shaft 6 is previously inserted into the insertion holes 73 of the upper plate 70 and the lower plate 71 of the joint portion 7. 6a is inserted and fixed with the holding nuts 12a and 12b and the lower nut 12c. Then, as shown in FIG. 6, the insertion portion 6b of the shaft 6 is inserted into the beam through holes 2a formed in the upper and lower flanges 4a and 4b of the H-shaped steel beam 2, and as shown in FIGS. 7 and 8. The lower plate 71 of the joint portion 7 is placed on the upper surface of the flange 4a on the upper side of the beam 2. Since the lower end of the insertion portion 6b of the shaft 6 protrudes below the lower flange 4b and is inserted into the upper and lower beam through holes 2a, the support column is erected on the joint portion 7 joined to the shaft 6. The main body 8 is erected without rattling.

その後、図９に示すように、平板状に形成された幅木９を支柱本体８と立ち上がり部１６との間に形成された幅木挿入部１０に挿入することで、弾性体１７によって幅木９が支柱本体８側に押し付けられて固定される。幅木挿入部１０は梁２よりも屋内側に配置されており、幅木９が梁２の上に固定される他の部材を干渉することがない。そして、クランプ１５の固定片１５ｂを開放させて水平材１３を受け部１５ｄに挿入し、固定片１５ｂをボルト１５ｃを締めて閉塞させて水平材１３をクランプ１５の円形孔に挿入する。図示していないが、梁２の上には所定の間隔で仮設手摺の支柱構造１が複数設けられており、水平材１３を複数の支柱本体８のクランプ１５に架設させて仮設手摺３を完成させる。図７及び図９に示すように、クランプ１５は梁２よりも屋内側に配置されているので、水平材１３が梁２の上に固定される他の部材を干渉することがなく、水平材１３を直線的に配置することができ、部品点数の削減や施工省力化を図ることができる。 After that, as shown in FIG. 9, the skirting board 9 formed in a flat plate shape is inserted into the skirting board insertion portion 10 formed between the support column main body 8 and the rising portion 16, and the skirting board is formed by the elastic body 17. 9 is pressed against the support main body 8 side and fixed. The skirting board insertion portion 10 is arranged on the indoor side of the beam 2, so that the skirting board 9 does not interfere with other members fixed on the beam 2. Then, the fixing piece 15b of the clamp 15 is opened and inserted into the receiving portion 15d of the horizontal member 13, the fixing piece 15b is closed by tightening the bolt 15c, and the horizontal member 13 is inserted into the circular hole of the clamp 15. Although not shown, a plurality of pillar structures 1 of temporary handrails are provided on the beam 2 at predetermined intervals, and the horizontal members 13 are erected on the clamps 15 of the plurality of pillar main bodies 8 to complete the temporary handrail 3. Let me. As shown in FIGS. 7 and 9, since the clamp 15 is arranged indoors with respect to the beam 2, the horizontal member 13 does not interfere with other members fixed on the beam 2 and is a horizontal member. The 13 can be arranged linearly, and the number of parts can be reduced and the construction labor can be saved.

図９及び図１０に示すように、梁２の上側のフランジ４ａと接合部７の上板７０との鉛直方向の距離は、梁２の上に載置される床版１１の厚さよりも長く形成されており、梁２の上側のフランジ４ａ上に床版１１が載置される。床版１１の上には接合部７の上板７０が延びており、支柱本体８は床版１１と干渉することなく当該床版１１の上に立設される。 As shown in FIGS. 9 and 10, the vertical distance between the flange 4a on the upper side of the beam 2 and the upper plate 70 of the joint 7 is longer than the thickness of the floor slab 11 placed on the beam 2. It is formed, and the floor slab 11 is placed on the flange 4a on the upper side of the beam 2. The upper plate 70 of the joint portion 7 extends above the floor slab 11, and the support column main body 8 is erected on the floor slab 11 without interfering with the floor slab 11.

仮設手摺３は建築現場において、図示しない作業員、建材、及び施工冶具が手摺や中桟などの水平材１３や支柱本体８に当った場合に、作業員の転落や建材及び施工冶具の落下を防止するためのものであり、梁２との接続箇所であるシャフト６に大きな加重が加わって、シャフト６が湾曲し又は損傷することがある。 The temporary handrail 3 prevents the worker from falling or the building material and construction tool from falling when a worker, building material, and construction tool (not shown) hit a horizontal member 13 such as a handrail or a center rail or a support main body 8 at a construction site. This is for prevention, and a large load may be applied to the shaft 6 which is a connection point with the beam 2, and the shaft 6 may be curved or damaged.

このような場合には、図４及び図５に示すように、上側の挟持ナット１２ａをシャフト６の雄ネジ部６ａから緩めて外すとともに、下側の挟持ナット１２ｂ及び下ナット１２ｃを緩めて外しつつ、シャフト６を接合部７の上板７０及び下板７１に形成された挿入孔７３から抜き取る。そして、新たなシャフト６の雄ネジ部６ａを接合部７の下板７１に形成された挿入孔７３に挿入し、上板７０と下板７１との間で雄ネジ部６ａに下ナット１２ｃ及び下側の挟持ナット１２ｂを螺合させる。そして、雄ネジ部６ａを上板７０に形成された挿入孔７３に挿入して上側の挟持ナット１２ａを雄ネジ部６ａに螺合させて、挟持ナット１２ａ，１２ｂを接合部７の上板７０を挟持するように締め付けるとともに、下ナット１２ｃを接合部７の下板７１に圧接するように締め付けて、シャフト６の交換作業を完了する。このように、シャフト６が変形した場合でも、接合部７からシャフト６を取り外してシャフト６のみ交換することができ、容易に交換することができる。 In such a case, as shown in FIGS. 4 and 5, the upper holding nut 12a is loosened and removed from the male screw portion 6a of the shaft 6, and the lower holding nut 12b and the lower nut 12c are loosened and removed. At the same time, the shaft 6 is pulled out from the insertion holes 73 formed in the upper plate 70 and the lower plate 71 of the joint portion 7. Then, the male screw portion 6a of the new shaft 6 is inserted into the insertion hole 73 formed in the lower plate 71 of the joint portion 7, and the lower nut 12c and the lower nut 12c are inserted into the male screw portion 6a between the upper plate 70 and the lower plate 71. Screw the lower holding nut 12b. Then, the male screw portion 6a is inserted into the insertion hole 73 formed in the upper plate 70, the upper holding nut 12a is screwed into the male screw portion 6a, and the holding nuts 12a and 12b are inserted into the upper plate 70 of the joint portion 7. The lower nut 12c is tightened so as to press-contact the lower plate 71 of the joint portion 7, and the replacement work of the shaft 6 is completed. In this way, even if the shaft 6 is deformed, the shaft 6 can be removed from the joint portion 7 and only the shaft 6 can be replaced, so that the shaft 6 can be easily replaced.

本発明の実施の形態は上述の形態に限ることなく、本発明の思想の範囲を逸脱しない範囲で適宜変更することができることは云うまでもない。 It goes without saying that the embodiments of the present invention are not limited to the above-described embodiments, and can be appropriately changed without departing from the scope of the idea of the present invention.

本発明に係る仮設手摺の支柱構造１は、多層階建築物の建築現場において転落を防止する仮設手摺の支柱構造１として好適である。 The column structure 1 of the temporary handrail according to the present invention is suitable as the column structure 1 of the temporary handrail to prevent falling at the construction site of a multi-story building.

１ 仮設手摺の支持構造
２ 梁
２ａ 梁貫通孔
３ 仮設手摺
６ シャフト
６ａ 雄ネジ部
６ｂ 挿入部
７ 接合部
８ 支柱本体
９ 幅木
１１ 床版
１２ａ，１２ｂ 挟持ナット
１２ｃ 下ナット
１３ 水平材
１５ クランプ
１６ 立ち上がり部
１７ 弾性体
７０ 上板
７１ 下板
７２ 鉛直板 1 Temporary handrail support structure 2 Beam 2a Beam through hole 3 Temporary handrail 6 Shaft 6a Male screw part 6b Insertion part 7 Joint part 8 Strut body 9 Baseboard 11 Floor slab 12a, 12b Holding nut 12c Lower nut 13 Horizontal member 15 Clamp 16 Rising part 17 Elastic body 70 Upper plate 71 Lower plate 72 Vertical plate

Claims (5)

上部に雄ネジ部が形成され、下部に梁に形成された梁貫通孔に挿入される挿入部が形成されるシャフトと、
前記シャフトの前記雄ネジ部が挿入される挿入孔が形成される接合部と、
前記シャフトの前記雄ネジ部に螺合し、前記接合部の一部を挟持する一対の挟持ナットと、
前記接合部に下端が固定される支柱本体と、
を備えることを特徴とする仮設手摺の支柱構造。 A shaft in which a male screw part is formed in the upper part and an insertion part to be inserted into a beam through hole formed in the beam is formed in the lower part.
A joint in which an insertion hole into which the male screw portion of the shaft is inserted is formed,
A pair of holding nuts that are screwed into the male screw portion of the shaft and hold a part of the joint portion.
A strut body whose lower end is fixed to the joint and
The support structure of the temporary handrail, which is characterized by being provided with. 前記シャフトの前記雄ネジ部に螺合する下ナットを更に備え、
前記接合部は、水平な上板と、前記上板に平行で前記梁の上面に当接する下板と、当該上板及び当該下板を連結する鉛直板と、を有し、
前記上板及び前記下板の上方から見て重なる位置に前記挿入孔が形成され、
前記雄ネジ部に螺合する前記一対の挟持ナットが前記上板を挟持するとともに、前記下ナットが前記下板の上面に圧接することを特徴とする請求項１に記載の仮設手摺の支柱構造。 Further provided with a lower nut to be screwed into the male threaded portion of the shaft.
The joint has a horizontal upper plate, a lower plate parallel to the upper plate and abutting on the upper surface of the beam, and a vertical plate connecting the upper plate and the lower plate.
The insertion hole is formed at a position where the upper plate and the lower plate overlap each other when viewed from above.
The support column structure for a temporary handrail according to claim 1, wherein the pair of holding nuts screwed into the male screw portion hold the upper plate and the lower nut presses against the upper surface of the lower plate. .. 前記鉛直板は前記梁の幅方向の中央よりも屋外側に形成されるものであり、
前記下板は前記鉛直板の下端から屋外側に延びるとともに、前記上板は前記鉛直板の上端の屋内側及び屋外側に延びて形成されており、
前記梁と前記上板との間の距離は、前記梁上に配置される床版の厚さ以上であり、
前記上板の前記鉛直板よりも屋内側の位置に前記支柱本体が固定されることを特徴とする請求項２に記載の仮設手摺の支柱構造。 The vertical plate is formed on the outdoor side of the center in the width direction of the beam.
The lower plate extends from the lower end of the vertical plate to the outdoor side, and the upper plate extends to the indoor side and the outdoor side of the upper end of the vertical plate.
The distance between the beam and the top plate is greater than or equal to the thickness of the floor slab placed on the beam.
The support column structure for a temporary handrail according to claim 2, wherein the support column main body is fixed at a position indoors of the vertical plate of the upper plate. 前記支柱本体の下端は前記上板の上面に固定されるとともに、
前記上板の一端が上方に折れ曲がって立ち上がり部を形成し、
前記支柱本体と前記立ち上がり部との間に幅木が挿入されるものであって、
前記立ち上がり部に固定されて、前記支柱本体に圧接する弾性体が設けられることを特徴とする請求項２又は請求項３に記載の仮設手摺の支柱構造。 The lower end of the support column body is fixed to the upper surface of the upper plate, and
One end of the upper plate is bent upward to form a rising portion,
A skirting board is inserted between the support column body and the rising portion.
The support column structure for a temporary handrail according to claim 2 or 3, wherein an elastic body that is fixed to the rising portion and press-contacts the support column body is provided. 前記支柱本体は、水平材を保持するクランプを有し、
前記支柱本体は、上方から見て前記梁に重なる位置に立設されるとともに、前記クランプは、上方から見て前記梁に重ならないように前記支柱本体から突出することを特徴とする請求項１から請求項４のいずれかに記載の仮設手摺の支柱構造。 The strut body has a clamp that holds the horizontal member.
1. The strut body is erected at a position where it overlaps the beam when viewed from above, and the clamp projects from the strut body so as not to overlap the beam when viewed from above. The support structure of the temporary handrail according to any one of claims 4.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0410660U (en) * 1990-05-16 1992-01-29
JPH11229629A (en) * 1998-02-20 1999-08-24 Sekisui House Ltd Safety rope support device for construction
JP2010071042A (en) * 2008-09-22 2010-04-02 Sekisui House Ltd Temporary handrail
JP2010185185A (en) * 2009-02-10 2010-08-26 Sekisui House Ltd Temporary handrail and its construction method
JP2014101659A (en) * 2012-11-19 2014-06-05 Daiwa House Industry Co Ltd Temporary scaffold and method of assembling the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0410660U (en) * 1990-05-16 1992-01-29
JPH11229629A (en) * 1998-02-20 1999-08-24 Sekisui House Ltd Safety rope support device for construction
JP2010071042A (en) * 2008-09-22 2010-04-02 Sekisui House Ltd Temporary handrail
JP2010185185A (en) * 2009-02-10 2010-08-26 Sekisui House Ltd Temporary handrail and its construction method
JP2014101659A (en) * 2012-11-19 2014-06-05 Daiwa House Industry Co Ltd Temporary scaffold and method of assembling the same

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