JP7345295B2 - Strut device and handrail device - Google Patents

Strut device and handrail device Download PDF

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JP7345295B2
JP7345295B2 JP2019123494A JP2019123494A JP7345295B2 JP 7345295 B2 JP7345295 B2 JP 7345295B2 JP 2019123494 A JP2019123494 A JP 2019123494A JP 2019123494 A JP2019123494 A JP 2019123494A JP 7345295 B2 JP7345295 B2 JP 7345295B2
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辰雄 小野
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特許法第30条第2項適用 Uprising NISSO 2018 ハワイ記念大会 NISSO NEW ENGINEERING展示会、平成30年7月26日から平成30年7月28日までArticle 30, Paragraph 2 of the Patent Act applies Uprising NISSO 2018 Hawaii Memorial Convention NISSO NEW ENGINEERING Exhibition, from July 26, 2018 to July 28, 2018

本発明は、支柱装置及び手摺装置の改良に関する。 The present invention relates to improvements in strut devices and handrail devices.

一般に、ビルディング等の建築物の建築現場、又は橋梁等の構築物の構築現場では、作業者が作業をしたり通行したりするための床、梁、通路等(以下、「通路等」という)の端、又はその近くに作業者の安全を守るための手摺装置が設けられている。 Generally, at the construction site of a building or other structure, or the construction site of a bridge or other structure, there are floors, beams, passages, etc. (hereinafter referred to as "passages, etc.") for workers to work on or pass through. A handrail device is provided at or near the end to protect worker safety.

その手摺装置は、通路等の端に沿うように横方向に並ぶ複数の支柱装置と、隣り合う支柱装置の間に架け渡されるロープ、パイプ、又は棒等(以下、「ロープ等」という)とを備えており、各支柱装置は、ロープ等が連結される支柱と、その取付対象であるH鋼に支柱を固定する固定具とを有する。そして、その固定具がH鋼のフランジを厚さ方向の両側から挟み込む固定挟持片及び可動挟持片と、可動挟持片を固定挟持片に遠近させる駆動部とを有している(例えば、特許文献1)。 The handrail device consists of a plurality of support devices lined up horizontally along the edge of a passageway, etc., and ropes, pipes, rods, etc. (hereinafter referred to as "ropes, etc.") spanned between the adjacent support devices. Each strut device has a strut to which a rope or the like is connected, and a fixture for fixing the strut to the H steel to which it is attached. The fixture has a fixed clamping piece and a movable clamping piece that clamp the flange of H steel from both sides in the thickness direction, and a drive unit that moves the movable clamping piece closer to the fixed clamping piece (for example, Patent Document 1).

固定挟持片は、可動挟持片を挟んで固定挟持片と向かい合い、上記駆動部が取り付けられる支持部と、固定挟持片の一端とこれに対向する支持部の一端とを連結する連結部と一体的に設けられ、固定挟持片、支持部、及び連結部を有して固定具の本体部が構成されている。そして、その本体部に支柱が溶接等で固定される。 The fixed clamping piece faces the fixed clamping piece with the movable clamping piece in between, and is integral with a support part to which the driving part is attached, and a connecting part that connects one end of the fixed clamping piece and one end of the supporting part opposite thereto. The main body of the fixture includes a fixed clamping piece, a supporting part, and a connecting part. Then, a support column is fixed to the main body portion by welding or the like.

その一方、可動挟持片は、駆動部の操作によって固定挟持片と支持部との間を移動するとともに、鉢状でH鋼側へ開口し、その外周縁部がH鋼に当接可能な皿と、この皿の外周縁部がH鋼に当接した状態で皿内にH鋼で圧縮されつつ収容されるばねとを有する。これにより、固定挟持片と可動挟持片とでH鋼のフランジを強固に挟持できる。 On the other hand, the movable clamping piece moves between the fixed clamping piece and the support part by operating the drive unit, and is shaped like a pot and opens toward the H steel, and its outer peripheral edge is a plate that can come into contact with the H steel. and a spring which is housed in the dish while being compressed by the H steel with the outer peripheral edge of the dish in contact with the H steel. This allows the fixed clamping piece and the movable clamping piece to firmly clamp the H steel flange.

特開2018-087450号公報JP2018-087450A

ここで、隣り合う支柱間に架け渡されるロープ等には、命綱が取り付けられている。そして、そのロープ等が左右に延びるように手摺装置の内側(通路等側)から手摺装置を見たとき、作業者が通路等から落下すると、ロープ等に下向きと横向き(左右方向)の荷重が同時に加わり、支柱に左回転又は右回転のモーメントが作用する。安全ため、支柱装置は、ロープ等に所定の荷重が作用して上記モーメントの作用により支柱が左右に傾いたり曲がったりしても、支柱の変形量が所定の範囲に収まるように設計されている。 Here, a lifeline is attached to a rope or the like that is spanned between adjacent pillars. When the handrail device is viewed from inside the handrail device (pathway side) so that the rope, etc. extends from side to side, if a worker falls from the path, etc., the rope, etc. will be subject to downward and lateral (left/right) loads. At the same time, a counterclockwise or clockwise rotation moment acts on the column. For safety reasons, the prop device is designed so that even if a predetermined load is applied to the rope, etc., and the prop tilts or bends to the left or right due to the above moment, the amount of deformation of the prop remains within a predetermined range. There is.

とはいえ、従来の支柱装置では、支柱間に架け渡される部材がロープであってそのロープにより大きな横向きの荷重が加わり、支柱に作用する左回転又は右回転のモーメントが大きくなった場合には、可動挟持片の皿が変形して支柱の傾きが大きくなってしまう。このため、より大きなモーメントに対する支柱の傾きを抑制するには、可動挟持片の皿の厚みを増して皿の変形を抑制する必要がある。しかし、従来の支柱装置では、皿の内側にばねが収容されており、皿の内側がそのばねの収容スペースとなっているので、その収容スペースを確保しつつ皿の厚みを増すと固定具が大型化してしまう。 However, in conventional support systems, if the member spanned between the supports is a rope, and a large lateral load is applied to the rope, and the moment of left or right rotation acting on the support becomes large, , the plate of the movable clamping piece is deformed and the inclination of the support column becomes large. Therefore, in order to suppress the inclination of the support column in response to a larger moment, it is necessary to increase the thickness of the plate of the movable clamping piece to suppress deformation of the plate. However, in conventional prop devices, the spring is housed inside the plate, and the inside of the plate serves as the storage space for the spring, so if you increase the thickness of the plate while securing the storage space, the fixing device becomes It becomes large.

そこで、本発明は、支柱に大きなモーメントが作用しても、支柱の傾きを抑制できるとともに固定具の大型化を防止できる支柱装置及び手摺装置の提供を目的とする。 SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a prop device and a handrail device that can suppress the inclination of the column even if a large moment acts on the column, and can also prevent the fixture from increasing in size.

上記課題を解決する支柱装置は、支柱を取付対象に固定する固定具が、所定の間隔をあけて向かい合わせに配置される支持部及び固定挟持片と、これらの一端を連結する連結部とを含んで支柱が固定される本体部と、支持部と固定挟持片との間に配置されて固定挟持片との間に取付対象を挟持可能な可動挟持片と、先端に可動挟持片が連結される筒状の可動軸と、可動軸の一端に固定されて外筒内に摺動可能に挿入されるナットと、ナットに螺合されるボルトとを有するとともに、可動軸を外筒に出入りさせて可動挟持片を固定挟持片に遠近させる駆動部とを具備し、可動挟持片における可動軸の延長上にある部分が一枚板状であって、取付対象に当接可能とされており、外筒の内周形状とナットの外周形状は真円以外の形状となっており、ナットで可動軸の外筒に対する回り止めがなされている。上記構成によれば、可動軸は外筒に回り止めされつつ挿入されているので、ボルトを回転操作すれば送り螺子によって可動軸が外筒に出入りする。このため、上記構成によれば、可動軸を外筒に出入りさせるための構成を簡易にできる。また、ナットの外筒に対する摺動性を良好にするのは容易であるので、上記構成のように、ナットで可動軸の外筒に対する回り止めをすると、可動軸の外筒への出入りを円滑にできる。 In the support device that solves the above problems, the fixture for fixing the support to the object to be mounted includes a support portion and a fixed clamping piece that are arranged facing each other at a predetermined interval, and a connecting portion that connects one end of these parts. A movable clamping piece that is arranged between the supporting part and the fixed clamping piece and can clamp the object to be mounted between the fixed clamping piece, and a movable clamping piece connected to the tip thereof. It has a cylindrical movable shaft, a nut fixed to one end of the movable shaft and slidably inserted into the outer cylinder, and a bolt screwed into the nut, and the movable shaft can be moved in and out of the outer cylinder . The movable clamping piece is provided with a drive unit that moves the movable clamping piece toward and away from the fixed clamping piece, and a portion of the movable clamping piece that is an extension of the movable shaft is shaped like a single plate and can come into contact with the object to be mounted. The inner peripheral shape of the outer cylinder and the outer peripheral shape of the nut are shapes other than perfect circles, and the nut prevents the movable shaft from rotating relative to the outer cylinder. According to the above configuration, the movable shaft is inserted into the outer cylinder while being prevented from rotating, so when the bolt is rotated, the movable shaft moves in and out of the outer cylinder by the feed screw. Therefore, according to the above configuration, the configuration for moving the movable shaft into and out of the outer cylinder can be simplified. In addition, it is easy to improve the slidability of the nut against the outer cylinder, so if the nut prevents the movable shaft from rotating relative to the outer cylinder as in the above configuration, the movable shaft can smoothly move in and out of the outer cylinder. Can be done.

上記構成によれば、可動挟持片における可動軸の延長上にある部分が一枚板状で、その部分が取付対象に当接可能となっており、その可動挟持片には従来のようなばね等の収容スペースがない。このため、強度確保のため可動挟持片における可動軸の延長上にある部分の板厚を厚くしたとしても、従来の収容スペースの分を可動挟持片の厚みにできるので、固定具の大型化を防止できる。そして、固定具を大型化させることなく可動挟持片の板厚を充分に厚くしてその強度を高められるので、支柱に大きなモーメントが作用しても、可動挟持片が大きく変形して支柱の傾きが大きくなるのを防止できる。 According to the above structure, the part of the movable clamping piece that is on the extension of the movable shaft is plate-shaped and can come into contact with the object to be mounted, and the movable clamping piece is equipped with a conventional spring. There is no space to accommodate such items. Therefore, even if the thickness of the part of the movable clamping piece that is on the extension of the movable shaft is made thicker to ensure strength, the thickness of the movable clamping piece can be made equal to the conventional accommodation space, so it is not necessary to increase the size of the fixture. It can be prevented. In addition, the strength of the movable clamping piece can be increased by making the thickness of the movable clamping piece sufficiently thick without increasing the size of the fixture, so even if a large moment is applied to the column, the movable clamping piece will deform greatly and the tilt of the column will be increased. can be prevented from increasing.

また、上記支柱装置では、支持部の他端と固定挟持片の他端とが手前側に上下に並ぶように見た状態で、可動軸が可動挟持片の左右中央で、且つ、前後中央から前方へずれた位置に連結されていてもよい。このようにすると、可動挟持片が可動軸から左右均等に突出するので、左右何れの回転方向のモーメントが支柱に作用した場合であっても、その支柱の左右の傾きを略同等に抑制できる。さらに、可動挟持片が可動軸から後方へ大きく突出するので、作業者が通路等から落下した際に、本体部が回転して可動挟持片の前端が浮き上がるように変形したとしても、その際に生じる弾性力によって可動挟持片が本体部の回転を妨げて、固定具が取付対象から外れるのを防止できる。 In addition, in the above-mentioned strut device, when the other end of the support part and the other end of the fixed clamping piece are viewed so as to be vertically aligned toward the front side, the movable axis is located at the left and right center of the movable clamping piece, and from the front and rear center. It may be connected in a position shifted forward. In this way, the movable clamping pieces protrude equally on the left and right from the movable shaft, so that even if a moment in either the left or right rotational direction is applied to the column, the left and right inclination of the column can be suppressed approximately equally. Furthermore, since the movable clamping piece protrudes rearward from the movable shaft, even if the main body rotates and the front end of the movable clamping piece lifts up when a worker falls from a passage, etc. The generated elastic force causes the movable clamping piece to prevent rotation of the main body, thereby preventing the fixture from coming off the attachment target.

また、上記支柱装置が横方向に並べて複数配置されるとともに、その複数の支柱装置と、隣り合う支柱装置の支柱間に展張されるロープとを備えて手摺装置が構成されていて、その支柱装置が、手摺の内側から見て支柱の手前側面と固定具との間に架設される補強板を備えていていもよい。このようにすると、支柱に左回転又は右回転のモーメントが作用した際に、支柱が左右に傾くのを補強板で抑制できるとともに、支柱が根元から折損するのを防止できる。 Further, a handrail device is configured by arranging a plurality of the above-mentioned prop devices side by side in a horizontal direction, and a rope stretched between the plurality of prop devices and the columns of adjacent prop devices, and the prop device However, a reinforcing plate may be provided between the front side surface of the column and the fixture when viewed from the inside of the handrail. In this way, when a counterclockwise or clockwise rotation moment is applied to the column, the reinforcing plate can prevent the column from tilting to the left or right, and can also prevent the column from breaking from the base.

本発明に係る支柱装置及び手摺装置によれば、支柱に大きなモーメントが作用しても、支柱の傾きを抑制できるとともに、固定具の大型化を防止できる。 According to the strut device and the handrail device according to the present invention, even if a large moment acts on the strut, the inclination of the strut can be suppressed, and the fixture can be prevented from increasing in size.

本発明の一実施の形態に係る支柱装置を備える手摺装置の取付状態を示した斜視図である。FIG. 1 is a perspective view showing an attached state of a handrail device including a support device according to an embodiment of the present invention. (a)は本発明の一実施の形態に係る支柱装置の正面図、(b)は(a)の支柱装置の右側面図である。(a) is a front view of a prop device according to an embodiment of the present invention, and (b) is a right side view of the prop device in (a). 本発明の一実施の形態に係る支柱装置における固定具の縦断面図である。FIG. 2 is a longitudinal cross-sectional view of a fixture in a support strut device according to an embodiment of the present invention. 本発明の一実施の形態に係る支柱装置における固定具の斜視図である。FIG. 2 is a perspective view of a fixture in a support column device according to an embodiment of the present invention. 本発明の一実施の形態に係る支柱装置における固定具の分解斜視図である。FIG. 2 is an exploded perspective view of a fixture in a support column device according to an embodiment of the present invention. (a)は、本発明の一実施の形態に係る支柱装置におけるナットの固定された可動軸の底面図、(b)は(a)に示す可動軸の斜視図である。(a) is a bottom view of a movable shaft to which a nut is fixed in a prop device according to an embodiment of the present invention, and (b) is a perspective view of the movable shaft shown in (a). 支柱に後回転のモーメントが作用して本体部が傾いた状態を説明する説明図である。FIG. 6 is an explanatory diagram illustrating a state in which the main body is tilted due to a backward rotation moment acting on the support column. 本発明の一実施の形態に係る支柱装置における可動挟持片の第一の変形例を示し、その可動挟持片を含む固定具の縦断面図である。FIG. 7 is a longitudinal cross-sectional view of a fixture including the movable clamping piece, showing a first modification of the movable clamping piece in the strut device according to the embodiment of the present invention. 本発明の一実施の形態に係る支柱装置における可動挟持片の第二の変形例を示し、その可動挟持片を含む固定具の縦断面図である。FIG. 7 is a longitudinal cross-sectional view of a fixture including the movable clamping piece, showing a second modification of the movable clamping piece in the strut device according to the embodiment of the present invention. 本発明の一実施の形態に係る支柱装置における支柱の第一の変形例を示した右側面図である。FIG. 7 is a right side view showing a first modified example of the support in the support support device according to the embodiment of the present invention. (a)は、従来の支柱装置におけるナットの固定された可動軸の底面図、(b)は(a)に示す可動軸の斜視図である。(a) is a bottom view of a movable shaft to which a nut is fixed in a conventional prop device, and (b) is a perspective view of the movable shaft shown in (a).

以下に本発明の実施の形態に係る支柱装置について、図面を参照しながら説明する。いくつかの図面を通して付された同じ符号は、同じ部品(部分)か対応する部品(部分)を示す。実施の形態の支柱装置は、ビルディング等の建築物の建築現場、又は橋梁等の構築物の構築現場において、作業者が作業をしたり通行したりするための通路等の端、又はその近くに設置される手摺装置に利用されている。 DESCRIPTION OF THE PREFERRED EMBODIMENTS A strut device according to an embodiment of the present invention will be described below with reference to the drawings. The same reference numerals throughout the several drawings indicate the same or corresponding parts. The support device of the embodiment can be installed at or near the end of a passage for workers to work or pass at a construction site of a building or other structure, or a construction site of a bridge or other structure. It is used for handrail devices.

図1に示すように、本発明の一実施の形態に係る支柱装置Pが利用される手摺装置Hは、通路等の端に沿うように並ぶ複数の支柱1と、通路等の端又はその近くに配置されるH鋼Sに支柱1をそれぞれ固定する固定具2と、隣り合う支柱1,1の間に展張されるロープ(親綱)Rと、支柱1と固定具2とをつなぐ補強板3とを備える。そして、一本の支柱1と、それをH鋼Sに固定する固定具2と、その支柱1と固定具2との間に架設される補強板3とを有して一つの支柱装置Pが構成されており、手摺装置Hは、横方向に並ぶ複数の支柱装置Pと、隣り合う支柱装置P,Pの支柱1,1間に展張されるロープRとを備えて構成されているともいえる。 As shown in FIG. 1, a handrail device H in which a prop device P according to an embodiment of the present invention is used includes a plurality of columns 1 arranged along the edge of a passage, etc., and a plurality of props 1 arranged at or near the edge of the passage, etc. A fixing device 2 that fixes each of the columns 1 to the H steel S placed in the 2nd column, a rope (main rope) R stretched between the adjacent columns 1 and 1, and a reinforcing plate that connects the column 1 and the fixing device 2. 3. One support device P includes one support 1, a fixture 2 for fixing it to the H steel S, and a reinforcing plate 3 installed between the support 1 and the fixture 2. It can be said that the handrail device H is composed of a plurality of support devices P arranged in the horizontal direction, and a rope R stretched between the support devices 1 and 1 of the adjacent support devices P and P. .

以下、説明の便宜上、特別な説明がない限り、手摺装置Hの内側(通路等側)からロープRが左右に延びるように手摺装置H、支柱装置P、及びこれらが固定されるH鋼Sを見たときの前後左右上下を、単に「前(手前)」「後」「左」「右」「上」「下」という。図2に示すように、支柱1は、H鋼Sから後方(手摺装置Hの外側)へ斜めに起立している。これにより、通路等の幅が狭い場合にも作業者が歩行しやすい。 For convenience of explanation, unless otherwise specified, the handrail device H, the strut device P, and the H steel S to which these are fixed will be described below so that the rope R extends from the inside of the handrail device H (pathway side, etc.) to the left and right. The front, back, left, right, top and bottom when viewed are simply called ``front (front)'', ``rear'', ``left'', ``right'', ``top'', and ``bottom''. As shown in FIG. 2, the support column 1 stands obliquely rearward (outside the handrail device H) from the H steel S. This makes it easy for workers to walk even when the width of the passage is narrow.

また、支柱1の上端には、ロープRを接続するための取付部10が設けられている。図1に示すように、その取付部10の左右には、それぞれシャックル11が装着されている。その一方、ロープRの両端には、それぞれシンブルCが設けられている。そして、そのシンブルCをシャックル11に引っ掛けることでロープRが支柱1に接続される。図示しないが、そのロープRには、命綱が取り付けられている。 Furthermore, a mounting portion 10 for connecting a rope R is provided at the upper end of the support column 1. As shown in FIG. 1, shackles 11 are attached to the left and right sides of the mounting portion 10, respectively. On the other hand, a thimble C is provided at each end of the rope R. Then, by hooking the thimble C onto the shackle 11, the rope R is connected to the support 1. Although not shown, a lifeline is attached to the rope R.

取付部10には、シャックル11の他に楔12が装着されている。この楔12は、ロープRに替えてパイプ又は棒等の鋼材(図示せず)を支柱1,1間に架け渡す際に、取付部10に鋼材を固定するのに利用される。つまり、隣り合う支柱装置P,Pの支柱1,1間に架け渡される手摺は、ワイヤロープ等のロープRであっても、パイプ状又は棒状の鋼材であってもよく、図1に示す手摺装置Hは、その両者の利用に適している。 In addition to the shackle 11, a wedge 12 is attached to the mounting portion 10. The wedge 12 is used for fixing a steel material (not shown) such as a pipe or a rod to the mounting portion 10 when the rope R is replaced with a steel material (not shown) between the supports 1 and 1. In other words, the handrail spanned between the supports 1, 1 of the adjacent support devices P, P may be a rope R such as a wire rope, or may be a pipe-shaped or bar-shaped steel material, and the handrail shown in FIG. Device H is suitable for both uses.

なお、ロープR又は鋼材と支柱1とを強固に連結できる限り、取付部10の形状及び構成は適宜変更できる。また、ロープR又は鋼材と支柱1との接続に利用されるシャックル11、楔12、及びシンブルC等の接続用の部材も適宜変更できる。さらに、例えば、支柱1,1間に架け渡される部材がロープR又は鋼材の一方のみである場合には、楔12又はシャックル11の一方を省略してもよいのは勿論である。 Note that the shape and configuration of the attachment portion 10 can be changed as appropriate as long as the rope R or steel material and the support 1 can be firmly connected. Further, connecting members such as the shackle 11, wedge 12, and thimble C used to connect the rope R or steel material to the support 1 can be changed as appropriate. Furthermore, for example, if the member spanned between the supports 1 and 1 is only one of the rope R or a steel material, it goes without saying that one of the wedge 12 and the shackle 11 may be omitted.

つづいて、支柱1と固定具2とをつなぐ補強板3は、部分的に折り曲げて形成される縦長の金属板からなり、その上端が支柱1の手前側面の上下中央付近に溶接等で結合される。その一方、補強板3の下端は、固定具2の後述する外筒7の蓋部70に溶接等で結合されている。図2に示すように、補強板3において、支柱1に溶接される上端部分を第一の結合部30とすると、この第一の結合部30と下端との間に支柱1の手前側面に溶接される第二の結合部31が設けられている。 Next, the reinforcing plate 3 that connects the column 1 and the fixture 2 is made of a vertically long metal plate that is partially bent. Ru. On the other hand, the lower end of the reinforcing plate 3 is coupled to a lid portion 70 of the outer cylinder 7 of the fixture 2, which will be described later, by welding or the like. As shown in FIG. 2, in the reinforcing plate 3, if the upper end portion welded to the column 1 is the first joint 30, welding will be made to the front side of the column 1 between the first joint 30 and the lower end. A second coupling portion 31 is provided.

第一、第二の結合部30,31は、上下に所定の間隔をあけて設けられており、第一の結合部30と第二の結合部31の間の部分が取っ手部32となっている。この取っ手部32は、支柱1から手前側へ浮き上がるように設けられ、支柱1と取っ手部32との間に、作業者が手を挿し込むことが可能な隙間が形成されている。これにより、作業者が支柱装置Pを持ち運ぶ際に、取っ手部32を掴めるので便利である。 The first and second joint portions 30 and 31 are vertically provided with a predetermined interval, and the portion between the first joint portion 30 and the second joint portion 31 serves as a handle portion 32. There is. The handle portion 32 is provided so as to float toward the front side from the column 1, and a gap is formed between the column 1 and the handle portion 32 into which the operator can insert his or her hand. This is convenient because the operator can grip the handle portion 32 when carrying the support device P.

また、補強板3は、板状の部材であって、板厚方向に直交する方向へは変形し難い。そして、本実施の形態では、補強板3の板厚方向の延長上に支柱1が位置し、補強板3と支柱1が前後に並ぶ。前述のように、ロープRには命綱が取り付けられている。このため、作業者が通路等から落下してロープRに下向きと横向き(左右方向)の荷重が同時にかかると、支柱1に左回転又は右回転のモーメントが作用して支柱1がその根本(支柱1と固定具2との接合部)を支点に左又は右に傾こうとするが、それを補強板3で抑制し、支柱1が根元から折損するのを防止できる。 Further, the reinforcing plate 3 is a plate-shaped member and is difficult to deform in a direction perpendicular to the thickness direction. In this embodiment, the support 1 is located on the extension of the reinforcing plate 3 in the thickness direction, and the reinforcing plate 3 and the support 1 are lined up one after the other. As mentioned above, a lifeline is attached to the rope R. Therefore, when a worker falls from a walkway or the like and a downward and lateral (horizontal) load is applied to the rope R at the same time, a counterclockwise or clockwise rotation moment acts on the column 1, causing the column 1 to rotate at its base (prop 1 and the fixture 2) as a fulcrum, but this can be suppressed by the reinforcing plate 3 and the support 1 can be prevented from breaking from the base.

つづいて、固定具2は、支柱1の取付対象であるH鋼Sにおけるフランジの端部をその板厚方向の両側から挟み込むことでH鋼Sに固定される。より詳しくは、図1に示すように、H鋼Sは、矩形板状のウェブs1と、そのウェブs1の長手側の両端からウェブs1の板厚方向の両側へ突出する一対のフランジs2,s3とを含む。本実施の形態では、H鋼Sは一対のフランジs2,s3が上下に並ぶように配置されており、固定具2が上側のフランジs2の後端部をその後方から上下に挟むようにして取り付けられる。 Subsequently, the fixture 2 is fixed to the H steel S by sandwiching the ends of the flanges of the H steel S to which the support column 1 is attached from both sides in the thickness direction. More specifically, as shown in FIG. 1, the H steel S includes a rectangular plate-shaped web s1 and a pair of flanges s2 and s3 protruding from both longitudinal ends of the web s1 to both sides in the thickness direction of the web s1. including. In this embodiment, the H steel S is arranged such that a pair of flanges s2 and s3 are arranged vertically, and the fixture 2 is attached so as to vertically sandwich the rear end of the upper flange s2 from behind.

図3-5に示すように、その固定具2は、隙間をあけて上下に相対向して配置される支持部4a及び固定挟持片4bと、支持部4aの後端とこれに対向する固定挟持片4bの後端とを連結する連結部4cとを含む本体部4と、支持部4aと固定挟持片4bとの間に上下動可能に配置される可動挟持片5と、支持部4aに取り付けられて可動挟持片5を駆動する駆動部6とを有する。図3-5には、支柱装置Pにおける固定具2のみが示されており、支柱1及び補強板3は省略されている。 As shown in FIG. 3-5, the fixture 2 includes a support part 4a and a fixed clamping piece 4b which are arranged vertically opposite to each other with a gap, and a rear end of the support part 4a and a fixed part opposite thereto. A main body part 4 including a connecting part 4c that connects the rear end of the clamping piece 4b, a movable clamping piece 5 arranged vertically movably between the support part 4a and the fixed clamping piece 4b, and It has a drive unit 6 that is attached and drives the movable clamping piece 5. In FIG. 3-5, only the fixing device 2 in the strut device P is shown, and the strut 1 and reinforcing plate 3 are omitted.

本体部4は、金属製であって鍛造等で形成されており、支持部4a、固定挟持片4b、及び連結部4cが継ぎ目なく一体化されて側面視において前方へ開口するU字状となっている。その本体部4には、補強用のリブ4dが複数設けられている。なお、本体部4の材質及び成形方法、並びに、リブ4dの位置、数、及び形状は適宜変更できる。また、支持部4a、固定挟持片4b、及び連結部4cは、その一部が別体形成されて、他の部分と溶接等で固定的に接合されて本体部4として一体化されていてもよい。 The main body part 4 is made of metal and formed by forging or the like, and has a supporting part 4a, a fixed clamping piece 4b, and a connecting part 4c seamlessly integrated to form a U-shape that opens forward in side view. ing. The main body portion 4 is provided with a plurality of reinforcing ribs 4d. Note that the material and molding method of the main body portion 4, as well as the position, number, and shape of the ribs 4d can be changed as appropriate. Further, the supporting part 4a, the fixed clamping piece 4b, and the connecting part 4c may be partially formed separately and fixedly joined to other parts by welding or the like to be integrated as the main body part 4. good.

また、本体部4の支持部4aと固定挟持片4bには、駆動部6を取り付けるための取付孔4eと挿通孔4fが形成されている。さらに、支持部4aにおける取付孔4eの後方に、孔4gが形成されていて、この孔4gの縁部分に支柱1の下端が溶接等で固定的に接合される。これにより、支柱1が支持部4a上に起立する。 Further, the support portion 4a and the fixed clamping piece 4b of the main body portion 4 are formed with an attachment hole 4e and an insertion hole 4f for attaching the drive portion 6. Further, a hole 4g is formed behind the attachment hole 4e in the support portion 4a, and the lower end of the support column 1 is fixedly joined to the edge of the hole 4g by welding or the like. As a result, the support column 1 stands up on the support portion 4a.

駆動部6は、支柱1の手前側に支持部4aに起立した状態で固定される四角筒状の外筒7と、この外筒7内に軸方向へ移動可能に挿入される円筒状の可動軸8と、外筒7の上端を塞ぐ蓋部70と、可動軸8の上端に固定されるナット80と、蓋部70を貫通して外筒7内へ挿入されてナット80に螺合されるボルト9と、蓋部70とナット80との間に位置してボルト9に固定される抜止リング90とを有する。支持部4aに形成された取付孔4eは、外筒7の外周形状と符合する形状となっており、外筒7の下端部が取付孔4eに挿通されて、その上下の縁と外筒7の外周とが溶接される(図3)。 The drive unit 6 includes a square cylindrical outer cylinder 7 that is fixed in an upright position on the support part 4a on the near side of the column 1, and a cylindrical movable cylinder that is inserted into the outer cylinder 7 so as to be movable in the axial direction. A shaft 8, a lid 70 that closes the upper end of the outer cylinder 7, a nut 80 fixed to the upper end of the movable shaft 8, and a shaft 8 that is inserted into the outer cylinder 7 through the lid 70 and screwed into the nut 80. A retaining ring 90 is located between the cover portion 70 and the nut 80 and is fixed to the bolt 9. The attachment hole 4e formed in the support portion 4a has a shape that matches the outer peripheral shape of the outer tube 7, and the lower end of the outer tube 7 is inserted into the attachment hole 4e, and the upper and lower edges of the outer tube 7 are connected to each other. (Figure 3).

蓋部70は、外筒7の上端に溶接されている。また、蓋部70の中央には、その肉厚を貫通する挿通孔70aが形成されており、その挿通孔70aにボルト9の螺子軸9aが挿通可能となっている。ボルト9は、その螺子軸9aと、この螺子軸9aの先端に位置して外径が螺子軸9aの外径より大きいボルトヘッド9bとを含む。挿通孔70aの径は、ボルトヘッド9bの外径より小さい。このため、ボルト9の螺子軸9aを蓋部70の上から外筒7内へ挿し込むと、ボルトヘッド9bが蓋部70に引っ掛かり、螺子軸9aのみが外筒7内へ挿入される。 The lid portion 70 is welded to the upper end of the outer cylinder 7. Further, an insertion hole 70a is formed in the center of the lid part 70, passing through its thickness, and the screw shaft 9a of the bolt 9 can be inserted into the insertion hole 70a. The bolt 9 includes a threaded shaft 9a and a bolt head 9b located at the tip of the threaded shaft 9a and having an outer diameter larger than the outer diameter of the threaded shaft 9a. The diameter of the insertion hole 70a is smaller than the outer diameter of the bolt head 9b. Therefore, when the threaded shaft 9a of the bolt 9 is inserted into the outer cylinder 7 from above the lid 70, the bolt head 9b is caught on the lid 70, and only the threaded shaft 9a is inserted into the outer cylinder 7.

外筒7内へ挿入された螺子軸9aの外周であって蓋部70の近傍に、抜止リング90が溶接される。この抜止リング90の外径は、挿通孔70aの径より大きく、且つ、外筒7内で自由に回転できる径となっている。さらに、抜止リング90からボルトヘッド9bまでの距離は、蓋部70の板厚よりも若干長い。これにより、ボルト9の外筒7に対する周方向の回転が許容されるとともに軸方向の移動が規制され、ボルト9が外筒7から抜け出るのを防止できる。 A retaining ring 90 is welded to the outer periphery of the screw shaft 9 a inserted into the outer cylinder 7 and near the lid 70 . The outer diameter of this retaining ring 90 is larger than the diameter of the insertion hole 70a, and has a diameter that allows it to rotate freely within the outer cylinder 7. Furthermore, the distance from the retaining ring 90 to the bolt head 9b is slightly longer than the plate thickness of the lid portion 70. As a result, rotation of the bolt 9 in the circumferential direction relative to the outer cylinder 7 is allowed, and movement in the axial direction is restricted, so that the bolt 9 can be prevented from slipping out of the outer cylinder 7.

本実施の形態では、抜止リング90は、その内周に螺子溝が形成されたナットとなっていて、ボルト9の螺子軸9aに螺合される。また、外筒7における蓋部70の直下には、前方へ開口する開口窓7aが形成されている。これにより、作業者は、その開口窓7aから外筒7内へ抜止リング90を挿入し、蓋部70の上方から外筒7内へ挿し込んだ螺子軸9aの外周に抜止リング90を螺合できる。そして、抜止リング90を螺子軸9aの軸方向の任意の位置まで移動させ、抜止リング90を螺子軸9aに溶接する。 In this embodiment, the retaining ring 90 is a nut having a threaded groove formed on its inner periphery, and is screwed onto the threaded shaft 9a of the bolt 9. Furthermore, an opening window 7a that opens forward is formed in the outer cylinder 7 directly below the lid part 70. Thereby, the operator inserts the retaining ring 90 into the outer cylinder 7 through the opening window 7a, and screws the retaining ring 90 onto the outer periphery of the screw shaft 9a inserted into the outer cylinder 7 from above the lid part 70. can. Then, the retaining ring 90 is moved to an arbitrary position in the axial direction of the screw shaft 9a, and the retaining ring 90 is welded to the screw shaft 9a.

このように、抜止リング90をナットとすることで、抜止リング90をボルト9の螺子軸9aの任意の位置で仮止めした状態で溶接できるので、抜止リング90をボルト9に固定しやすい。しかし、抜止リング90は、内周に螺子溝の無い単なるリングであってもよい。さらに、抜止リング90に替えて、ピン等をボルト9の螺子軸9aに直交するように挿し込んでボルト9の抜止としてもよく、ボルト9が外筒7から抜けるのを防ぐ抜止部材の構成は、適宜変更できる。 In this way, by using the retaining ring 90 as a nut, the retaining ring 90 can be welded while being temporarily fixed at any position on the threaded shaft 9a of the bolt 9, making it easy to fix the retaining ring 90 to the bolt 9. However, the retaining ring 90 may be a simple ring without a threaded groove on the inner periphery. Further, instead of the retaining ring 90, a pin or the like may be inserted perpendicularly to the threaded shaft 9a of the bolt 9 to prevent the bolt 9 from coming off. , can be changed as appropriate.

また、外筒7内へ挿入された螺子軸9aの外周であって抜止リング90より下側には、ナット80が螺合される。そのナット80の下端には、可動軸8の上端が溶接されており、可動軸8とナット80が一体となって動く。図6に示すように、ナット80の外周形状は、角を丸めた四角柱状で、四つの側面80a,80b,80c,80dが四角筒状の外筒7の内周面に摺接する。さらに、円筒状の可動軸8の外径は、ナット80の一辺の長さ(相対向する側面80a,80c間、側面80b,80d間の距離)と等しく、可動軸8の周方向の四か所が外筒7の内周面に摺接する。これにより、外筒7内を摺動する可動軸8が外筒7内で傾くのを防止できる。 Further, a nut 80 is screwed onto the outer periphery of the screw shaft 9a inserted into the outer cylinder 7 and below the retaining ring 90. The upper end of the movable shaft 8 is welded to the lower end of the nut 80, and the movable shaft 8 and the nut 80 move together. As shown in FIG. 6, the outer circumferential shape of the nut 80 is a rectangular prism shape with rounded corners, and four side surfaces 80a, 80b, 80c, and 80d are in sliding contact with the inner circumferential surface of the rectangular outer cylinder 7. Further, the outer diameter of the cylindrical movable shaft 8 is equal to the length of one side of the nut 80 (distance between the opposing sides 80a and 80c, and the distance between the opposing sides 80b and 80d), and is in sliding contact with the inner circumferential surface of the outer cylinder 7. Thereby, the movable shaft 8 sliding within the outer cylinder 7 can be prevented from tilting within the outer cylinder 7.

図6中に示す平行斜線は溶接部を示しており、その溶接部は、可動軸8から外周側へ張り出すナット80の角部に位置する。これにより、溶接部が可動軸8の円滑な摺動の妨げにならない。さらに、互いに摺接する外筒7の内周形状とナット80の外周形状が共に非真円形状である。このため、可動軸8は、そのナット80によって外筒7に対する周方向の回転が阻止(回り止め)される。 Parallel diagonal lines shown in FIG. 6 indicate welded portions, and the welded portions are located at corners of the nut 80 that protrudes from the movable shaft 8 toward the outer circumference. Thereby, the welded portion does not interfere with smooth sliding of the movable shaft 8. Further, both the inner peripheral shape of the outer cylinder 7 and the outer peripheral shape of the nut 80, which are in sliding contact with each other, are non-perfect circular shapes. Therefore, the movable shaft 8 is prevented from rotating in the circumferential direction relative to the outer cylinder 7 by the nut 80.

また、図3-5に示すように、可動軸8は、外筒7の下端開口から外筒7内へ挿入されて、下端を外筒7から下方へ突出させている。固定挟持片4bに形成された挿通孔4fは、可動軸8の挿通を許容可能な大きさであり、駆動部6を本体部4に組み付ける際に挿通孔4fを通じて可動軸8を外筒7内へ挿入できる。これにより、可動軸8の軸方向長さが支持部4aと固定挟持片4bとの間隔より長くても、支持部4aに固定された外筒7内へ可動軸8を挿通できる。また、外筒7外へ突出する可動軸8の下端には、可動挟持片5が溶接される。 Further, as shown in FIGS. 3-5, the movable shaft 8 is inserted into the outer cylinder 7 from the lower end opening of the outer cylinder 7, and has its lower end protruding downward from the outer cylinder 7. The insertion hole 4f formed in the fixed clamping piece 4b has a size that allows the movable shaft 8 to be inserted therethrough. Can be inserted into. Thereby, even if the axial length of the movable shaft 8 is longer than the distance between the support portion 4a and the fixed clamping piece 4b, the movable shaft 8 can be inserted into the outer cylinder 7 fixed to the support portion 4a. Furthermore, a movable clamping piece 5 is welded to the lower end of the movable shaft 8 that protrudes outside the outer cylinder 7.

上記構成によれば、ボルト9を一方向へ回転すると、送り螺子によって可動軸8がナット80とともに送り出されて外筒7から退出し、可動挟持片5が固定挟持片4bに接近する。また、ボルト9を逆方向へ回転すると、可動軸8がナット80とともに引き戻されて外筒7内へ侵入し、可動挟持片5が固定挟持片4bから離間する。このように、本実施の形態では、駆動部6は、送り螺子機構により可動軸8を外筒7に出入りさせて、可動挟持片5を固定挟持片4bに遠近させられる。 According to the above configuration, when the bolt 9 is rotated in one direction, the movable shaft 8 is sent out together with the nut 80 by the feed screw and exits the outer cylinder 7, and the movable clamping piece 5 approaches the fixed clamping piece 4b. Further, when the bolt 9 is rotated in the opposite direction, the movable shaft 8 is pulled back together with the nut 80 and enters the outer cylinder 7, and the movable clamping piece 5 is separated from the fixed clamping piece 4b. In this manner, in this embodiment, the drive unit 6 moves the movable shaft 8 into and out of the outer cylinder 7 using the feed screw mechanism, and moves the movable clamping piece 5 closer to and closer to the fixed clamping piece 4b.

つづいて、上記駆動部6の組立手順の一例ついて説明する。 Next, an example of an assembly procedure for the drive section 6 will be described.

先ず、支持部4aの取付孔4eに外筒7の下端を挿入してこれらを溶接する。次に、ボルト9の螺子軸9aを外筒7の上端に溶接された蓋部70の上側から外筒7内へと挿し込むとともに、抜止リング90を開口窓7aから外筒7内へと挿入し、ボルト9の螺子軸9aを抜止リング90に捻じ込む。そして、抜止リング90を螺子軸9aの任意の位置まで移動させ、抜止リング90を螺子軸9aに溶接する。 First, the lower end of the outer tube 7 is inserted into the attachment hole 4e of the support portion 4a and welded together. Next, the threaded shaft 9a of the bolt 9 is inserted into the outer cylinder 7 from above the lid part 70 welded to the upper end of the outer cylinder 7, and the retaining ring 90 is inserted into the outer cylinder 7 through the opening window 7a. Then, screw the threaded shaft 9a of the bolt 9 into the retaining ring 90. Then, the retaining ring 90 is moved to an arbitrary position on the screw shaft 9a, and the retaining ring 90 is welded to the screw shaft 9a.

次に、ナット80が溶接された可動軸8を外筒7の下端からその内側へと挿入するとともに、ボルト9を回転して螺子軸9aをナット80に螺合する。最後に、可動挟持片5を支持部4aと固定挟持片4bとの間に挿し込んで、その可動挟持片5の上端に外筒7から下方へ突出させた可動軸8の下端を溶接する。 Next, the movable shaft 8 to which the nut 80 is welded is inserted into the inner side of the outer cylinder 7 from the lower end thereof, and the bolt 9 is rotated to screw the threaded shaft 9a into the nut 80. Finally, the movable clamping piece 5 is inserted between the support portion 4a and the fixed clamping piece 4b, and the lower end of the movable shaft 8 projecting downward from the outer cylinder 7 is welded to the upper end of the movable clamping piece 5.

なお、抜止リング90とボルト9の溶接は、ボルト9をナット80に螺合した後にしてもよい。また、本実施の形態では、駆動部6における支持部4aと外筒7、外筒7と蓋部70、可動軸8とナット80、ボルト9と抜止リング90が、それぞれ溶接により固定的に接合されている。しかし、これらの接合方法は、接着、圧入、加締め等、溶接以外の方法であってもよい。 Note that the retaining ring 90 and the bolt 9 may be welded after the bolt 9 is screwed into the nut 80. Further, in this embodiment, the support part 4a and the outer cylinder 7, the outer cylinder 7 and the lid part 70, the movable shaft 8 and the nut 80, and the bolt 9 and the retaining ring 90 in the drive part 6 are fixedly connected by welding. has been done. However, these joining methods may be methods other than welding, such as adhesion, press-fitting, and caulking.

つづいて、可動挟持片5は、一枚のステンレス鋼の矩形平板で形成されている。そして、可動挟持片5の左右の中央で、且つ、前後の中心から前方へずれた位置に可動軸8が溶接される。これにより、可動挟持片5の可動軸8から左右方向への突出量は均等になるが、可動軸8から後方への突出量は前方への突出量と比較して大きくなる。このように、可動挟持片5は、可動軸8から後方へ大きく突出するように可動軸8に溶接される。 Next, the movable clamping piece 5 is formed of a rectangular flat plate made of stainless steel. Then, the movable shaft 8 is welded at the center of the left and right sides of the movable holding piece 5 and at a position shifted forward from the center of the front and back. As a result, the amount of protrusion of the movable clamping piece 5 from the movable shaft 8 in the left-right direction becomes equal, but the amount of protrusion backward from the movable shaft 8 is larger than the amount of protrusion forward. In this way, the movable clamping piece 5 is welded to the movable shaft 8 so as to largely protrude rearward from the movable shaft 8.

上記構成によれば、支柱装置Pをその取付対象であるH鋼Sのフランジs2に取り付けた際、可動挟持片5の下面全体がフランジs2の上面に当接する。このため、可動挟持片5とフランジs2との接触面積が大きく、フランジs2が可動挟持片5と固定挟持片4bとで強固に挟持される。さらに、可動挟持片5に連結される可動軸8が外筒7に回り止めされていて、ボルト9の回転操作時に可動挟持片5を回転させずに済むので、ボルト9の回転操作が容易である。 According to the above configuration, when the strut device P is attached to the flange s2 of the H steel S to which it is attached, the entire lower surface of the movable clamping piece 5 comes into contact with the upper surface of the flange s2. Therefore, the contact area between the movable clamping piece 5 and the flange s2 is large, and the flange s2 is firmly clamped between the movable clamping piece 5 and the fixed clamping piece 4b. Furthermore, since the movable shaft 8 connected to the movable clamping piece 5 is prevented from rotating by the outer cylinder 7, there is no need to rotate the movable clamping piece 5 when rotating the bolt 9, so the rotation operation of the bolt 9 is easy. be.

ここで、従来の支柱装置では、可動挟持片が下向きに開口する鉢状の皿を有し、その内側にばね等を収容している。このため、その収容スペースを確保しつつ強度確保のため皿を厚くしたのでは、固定具が大型化してしまう。これに対して、本実施の形態の支柱装置Pでは、可動挟持片5が一枚の平板からなり、下面が平らで可動挟持片5の下側には従来のようなばね等の収容スペースが設けられていない。このため、その収容スペースの分を可動挟持片5の厚みにできるので、可動挟持片5の板厚を厚くしても固定具2の大型化を防止できる。そして、本実施の形態では、可動挟持片5の板厚が、従来の可動挟持片の皿の板厚よりも厚く、強度(剛性)が高い。 Here, in the conventional support device, the movable clamping piece has a bowl-shaped plate that opens downward, and a spring or the like is housed inside the pot-shaped plate. For this reason, if the plate is made thicker to ensure strength while securing storage space, the fixture will become larger. On the other hand, in the support device P of this embodiment, the movable clamping piece 5 is made of a single flat plate, the lower surface is flat, and the lower side of the movable clamping piece 5 has a space for accommodating a spring or the like like the conventional one. Not provided. Therefore, the thickness of the movable clamping piece 5 can be made equal to the accommodation space, so that even if the thickness of the movable clamping piece 5 is increased, it is possible to prevent the fixture 2 from increasing in size. In the present embodiment, the thickness of the movable clamping piece 5 is thicker than the plate thickness of the conventional movable clamping piece, and has high strength (rigidity).

これにより、作業者が通路等から落下して支柱1に左回転又は右回転のモーメントが作用した場合、固定具2が支柱1とともに左又は右へ傾こうとして、可動挟持片5に曲げ力が負荷されるが、その負荷によって可動挟持片5が大きく変形するのが防止され、支柱1の傾きが抑制される。さらに、前述のように、可動挟持片5は可動軸8から左右均等に突出しているので、左右何れの回転方向のモーメントが支柱1に作用した場合であっても、支柱1の傾きが略同等に抑制される。 As a result, when a worker falls from a passage or the like and a counterclockwise or clockwise rotation moment is applied to the column 1, the fixture 2 tends to tilt to the left or right together with the column 1, and bending force is applied to the movable clamping piece 5. Although the load is applied, the movable clamping piece 5 is prevented from being significantly deformed by the load, and the inclination of the support column 1 is suppressed. Furthermore, as mentioned above, since the movable clamping pieces 5 protrude equally from the left and right sides of the movable shaft 8, the inclination of the column 1 is approximately the same even when a moment in either the left or right rotational direction is applied to the column 1. is suppressed.

また、作業者が通路等から落下した場合、支柱1には前述のような左回転又は右回転のモーメントが作用する他、後回転のモーメントも作用する。そして、図7に示すように、そのモーメントによって固定挟持片4bの前端とフランジs2との当接部を支点に本体部4が矢印Y方向へ回転し、可動挟持片5の前端が浮き上がるように変形したとしても、その際に生じる弾性力によって可動挟持片5が元の形状に戻ろうとする。このため、本体部4の矢印Y方向の回転が妨げられて、固定具2がH鋼Sから外れるのが防止される。図7には、理解を容易にするため、可動挟持片5が弾性変形した状態を誇張して記載している。 Further, when a worker falls from a passage or the like, in addition to the above-mentioned counterclockwise or clockwise rotation moment acting on the support column 1, a backward rotation moment also acts on the support column 1. Then, as shown in FIG. 7, the moment causes the main body 4 to rotate in the direction of arrow Y using the abutment between the front end of the fixed clamping piece 4b and the flange s2 as a fulcrum, so that the front end of the movable clamping piece 5 is lifted up. Even if it is deformed, the movable clamping piece 5 tends to return to its original shape due to the elastic force generated at that time. Therefore, rotation of the main body portion 4 in the direction of the arrow Y is hindered, and the fixture 2 is prevented from coming off the H steel S. In FIG. 7, in order to facilitate understanding, the state in which the movable clamping piece 5 is elastically deformed is exaggerated.

以下、本発明の一実施の形態に係る支柱装置Pの作用効果について説明する。 Hereinafter, the effects of the strut device P according to an embodiment of the present invention will be explained.

本実施の形態に係る支柱装置Pは、支柱1と、この支柱1をH鋼Sのフランジ(取付対象)s2に固定する固定具2とを備える。さらに、その固定具2は、所定の間隔をあけて向かい合わせに配置される支持部4a及び固定挟持片4bと、これらの後端(一端)を連結する連結部4cを含んで支柱1が固定される本体部4と、支持部4aと固定挟持片4bとの間に配置されて固定挟持片4bとの間にフランジ(取付対象)s1を挟持可能な可動挟持片5と、支持部4aに取り付けられて可動挟持片5を固定挟持片4bに遠近させる駆動部6とを有する。 The strut device P according to the present embodiment includes a strut 1 and a fixture 2 for fixing the strut 1 to a flange (attachment target) s2 of the H steel S. Furthermore, the fixture 2 includes a supporting part 4a and a fixed clamping piece 4b that are arranged facing each other at a predetermined interval, and a connecting part 4c that connects the rear end (one end) of these parts. a movable clamping piece 5 which is arranged between the support part 4a and the fixed clamping piece 4b and can clamp the flange (attachment target) s1 between the fixed clamping piece 4b, and the support part 4a. It has a drive unit 6 that is attached to move the movable clamping piece 5 toward and away from the fixed clamping piece 4b.

そして、駆動部6は、支持部4aに固定される外筒7と、その外筒7内に軸方向へ移動可能に挿入されて先端に可動挟持片5が連結される可動軸8とを有し、その可動軸8を外筒7に回り止めしつつ出入りさせることで可動挟持片5を駆動する。また、可動挟持片5の可動軸8の延長上にある部分が一枚板状であって、フランジ(取付対象)s2に当接可能とされている。可動挟持片5において、可動軸8の延長上にある部分とは、可動軸8を軸方向へ延長したと仮定したとき、その可動軸8と重なり合う部分をいう。 The drive unit 6 has an outer cylinder 7 fixed to the support part 4a, and a movable shaft 8 that is inserted into the outer cylinder 7 so as to be movable in the axial direction and to which the movable clamping piece 5 is connected to the tip. The movable clamping piece 5 is driven by moving the movable shaft 8 in and out of the outer cylinder 7 while being prevented from rotating. Further, a portion of the movable clamping piece 5 extending from the movable shaft 8 is shaped like a single plate, and is capable of abutting against the flange (attachment target) s2. In the movable clamping piece 5, the portion on the extension of the movable shaft 8 refers to a portion that overlaps with the movable shaft 8, assuming that the movable shaft 8 is extended in the axial direction.

上記構成によれば、可動軸8が外筒7に回り止めされていて、可動挟持片5が固定挟持片4bに対して回転しない。このため、例えば、本実施の形態のようにボルト9の回転操作で可動挟持片5を駆動する場合、ボルト9とともに可動挟持片5を回転せずに済み、ボルト9の回転操作を良好にできる。つまり、上記構成によれば、可動挟持片5の駆動時に可動挟持片5が回転しないので、可動挟持片5の駆動を容易にできる。 According to the above configuration, the movable shaft 8 is prevented from rotating by the outer cylinder 7, and the movable clamping piece 5 does not rotate relative to the fixed clamping piece 4b. Therefore, for example, when the movable clamping piece 5 is driven by the rotation operation of the bolt 9 as in the present embodiment, the movable clamping piece 5 does not need to be rotated together with the bolt 9, and the rotation operation of the bolt 9 can be improved. . That is, according to the above configuration, since the movable clamping piece 5 does not rotate when the movable clamping piece 5 is driven, the movable clamping piece 5 can be easily driven.

また、前述のように、従来の支柱装置では、可動挟持片が下方へ開口する鉢状の皿を有し、その皿の内側がばね等の収容スペースになっていたので、可動挟持片における可動軸の延長上にその収容スペースが位置していた。これに対して、本実施の形態の支柱装置Pでは、可動挟持片5における可動軸8の延長上にある部分が一枚板状で、その部分がフランジ(取付対象)s2に当接可能となっており、ばね等の収容スペースが設けられていない。 In addition, as mentioned above, in the conventional support device, the movable clamping piece has a bowl-shaped plate that opens downward, and the inside of the tray serves as a storage space for springs, etc. Its accommodation space was located on the extension of the axis. In contrast, in the strut device P of this embodiment, the portion of the movable clamping piece 5 that is on the extension of the movable shaft 8 is plate-like, and that portion can come into contact with the flange (attachment target) s2. There is no space for housing springs, etc.

このため、上記支柱装置Pでは強度確保のため可動挟持片5における可動軸8の延長上にある部分の板厚を厚くしたとしても、従来の収容スペースの分を可動挟持片5の厚みに利用できるので、固定具2の大型化を防止できる。そして、本実施の形態の支柱装置Pによれば、固定具2を大型化させることなく可動挟持片5の板厚を充分に厚くしてその強度を高められるので、支柱1に大きなモーメントが作用しても、可動挟持片5が大きく変形して支柱1の傾きが大きくなるのを防止できる。つまり、本実施の形態の支柱装置Pによれば、支柱1に大きなモーメントが作用しても、支柱1の傾きを抑制できるとともに、固定具2の大型化を防止できる。 For this reason, in the above-mentioned support device P, even if the plate thickness of the movable clamping piece 5 is increased in the portion on the extension of the movable shaft 8 in order to ensure strength, the conventional accommodation space is used for the thickness of the movable clamping piece 5. Therefore, it is possible to prevent the fixture 2 from increasing in size. According to the strut device P of this embodiment, the plate thickness of the movable clamping piece 5 can be made sufficiently thick to increase its strength without increasing the size of the fixture 2, so that a large moment acts on the strut 1. Even if the movable clamping piece 5 is deformed greatly, the inclination of the support column 1 can be prevented from becoming large. In other words, according to the strut device P of this embodiment, even if a large moment acts on the strut 1, the inclination of the strut 1 can be suppressed, and the fixture 2 can be prevented from increasing in size.

また、上記支柱装置Pでは、可動挟持片5において可動軸8の延長上にある一枚板状の部分がフランジ(取付対象)s2に当接可能となっている。そして、可動挟持片5が本体部4に干渉しない限りにおいて、可動挟持片5を可動軸8の延長上にある部分から外周側へ大きくできる。つまり、上記構成によれば、可動挟持片5とフランジ(取付対象)s2との接触面積を大きくできるので、固定挟持片4bと可動挟持片5とで取付対象を強固に挟持できる。 Further, in the above-mentioned strut device P, a monolithic plate-shaped portion of the movable clamping piece 5 located on an extension of the movable shaft 8 can come into contact with the flange (attachment target) s2. As long as the movable clamping piece 5 does not interfere with the main body 4, the movable clamping piece 5 can be enlarged from the portion extending from the movable shaft 8 toward the outer circumference. That is, according to the above configuration, the contact area between the movable clamping piece 5 and the flange (attachment target) s2 can be increased, so that the fixed clamping piece 4b and the movable clamping piece 5 can firmly clamp the attachment target.

さらに、上記支柱装置Pでは、可動挟持片5が可動軸8に溶接されている。このため、可動挟持片5における可動軸8の延長上にある部分をフランジ(取付対象)s2に当接させるのが容易である。しかし、可動挟持片5と可動軸8は、接着等の溶接以外の方法で固定的に接合されていてもよい。 Furthermore, in the above-mentioned strut device P, the movable clamping piece 5 is welded to the movable shaft 8. Therefore, it is easy to bring the portion of the movable clamping piece 5 on the extension of the movable shaft 8 into contact with the flange (attachment target) s2. However, the movable clamping piece 5 and the movable shaft 8 may be fixedly joined by a method other than welding such as adhesion.

また、本実施の形態に係る支柱装置Pでは、支持部4aの前端(他端)と固定挟持片4bの前端(他端)とが手前側に上下に並ぶように見た状態で、可動軸8が可動挟持片5の左右中央で、且つ、前後中央から前方へずれた位置に連結されている。これにより、可動挟持片5が可動軸8から左右均等に突出するので、左右何れの回転方向のモーメントが支柱1に作用した場合であっても、その支柱1の左右の傾きを略同等に抑制できる。 In addition, in the strut device P according to the present embodiment, the movable shaft is 8 is connected at the left and right center of the movable holding piece 5 and at a position shifted forward from the front and rear center. As a result, the movable clamping piece 5 protrudes equally from the movable shaft 8 on the left and right sides, so that even if a moment in either the left or right rotational direction is applied to the column 1, the left and right inclination of the column 1 is suppressed approximately equally. can.

さらに、可動挟持片5が可動軸8から後方へ大きく突出するので、作業者が通路等から落下した際に、本体部4が図7中矢印Y方向へ回転して可動挟持片5の前端が浮き上がるように変形したとしても、その際に生じる弾性力によって可動挟持片5が本体部4の回転を妨げて、固定具2がフランジ(取付対象)s2から外れるのを防止できる。その一方、可動挟持片5の可動軸8から前方への突出量は小さくできるので、可動挟持片5が本体部4から突出するのを防止できる。これにより、固定具2が前後に嵩張らず、複数の支柱装置Pをまとめて運搬しやすい。 Furthermore, since the movable clamping piece 5 largely protrudes rearward from the movable shaft 8, when a worker falls from a passage, etc., the main body 4 rotates in the direction of arrow Y in FIG. Even if it deforms so that it floats up, the movable clamping piece 5 prevents the rotation of the main body part 4 due to the elastic force generated at that time, and can prevent the fixture 2 from coming off the flange (attachment target) s2. On the other hand, since the amount of forward protrusion of the movable clamping piece 5 from the movable shaft 8 can be reduced, it is possible to prevent the movable clamping piece 5 from protruding from the main body part 4. Thereby, the fixture 2 does not take up much space in the front and back, making it easy to transport the plurality of support devices P all at once.

また、本実施の形態では、可動挟持片5がステンレス鋼で形成されていて曲げに対する強度が高い。このため、可動挟持片5に曲げ力が作用しても、可動挟持片5が破損するのを防止できる。しかし、可動挟持片5の曲げに対する強度が確保されていれば、可動挟持片5の材質はステンレス鋼に限らず適宜変更できる。さらに、固定具2が取付対象から外れなければ、可動軸8は可動挟持片5の中央に連結されていてもよい。 Furthermore, in this embodiment, the movable clamping piece 5 is made of stainless steel and has high strength against bending. Therefore, even if a bending force is applied to the movable clamping piece 5, the movable clamping piece 5 can be prevented from being damaged. However, the material of the movable clamping piece 5 is not limited to stainless steel and can be changed as appropriate as long as the strength against bending of the movable clamping piece 5 is ensured. Furthermore, the movable shaft 8 may be connected to the center of the movable clamping piece 5 as long as the fixture 2 is not removed from the attachment target.

また、本実施の形態では、可動挟持片5が一枚の平板からなる。このため、可動挟持片5の構成が簡易で固定具2のコストを低減できる。しかし、可動挟持片5における可動軸8の延長上にある部分が一枚板状で取付対象に当接可能であれば、可動挟持片5の下端面は必ずしも平面でなくてもよい。例えば、図8に示すように、可動挟持片5の下端に複数の細かい溝5a又は突起5bが形成されていてもよい。 Furthermore, in this embodiment, the movable clamping piece 5 is made of one flat plate. Therefore, the structure of the movable clamping piece 5 is simple and the cost of the fixture 2 can be reduced. However, the lower end surface of the movable clamping piece 5 does not necessarily have to be flat, as long as the portion of the movable clamping piece 5 that is on the extension of the movable shaft 8 is plate-like and can come into contact with the object to be attached. For example, as shown in FIG. 8, a plurality of fine grooves 5a or protrusions 5b may be formed at the lower end of the movable clamping piece 5.

また、可動挟持片5における可動軸8の延長上にある部分が一枚板状で取付対象に当接可能であれば、それ以外の部分形状は必ずしも平板状でなくてもよい。例えば、図9に示すように、可動挟持片5の外周縁部が上方へ折り曲げられていてもよい。さらに、本実施の形態では、可動挟持片5の形状が平面視で矩形であるが、円形、楕円形、四角以外の多角形、又はそれ以外の形状であってもよい。 Furthermore, as long as the portion of the movable clamping piece 5 that is on the extension of the movable shaft 8 is plate-shaped and can come into contact with the object to be attached, the shape of the other portions does not necessarily have to be flat. For example, as shown in FIG. 9, the outer peripheral edge of the movable clamping piece 5 may be bent upward. Further, in the present embodiment, the shape of the movable clamping piece 5 is rectangular in plan view, but it may be circular, oval, polygonal other than square, or any other shape.

また、本実施の形態に係る支柱装置Pでは、筒状の可動軸8の上端(軸方向の一端)にナット80が固定され、そのナット80にボルト9が螺合されている。前述のように、可動軸8は外筒7内に回り止めされつつ挿入されているので、上記構成によれば、ボルト9を回転操作することにより送り螺子によって可動軸8が外筒7に出入りする。このように、本実施の形態では駆動部6が送り螺子機構を有しているので、可動軸8を外筒7に出入りさせるための構成を簡易にできる。 Furthermore, in the strut device P according to the present embodiment, a nut 80 is fixed to the upper end (one end in the axial direction) of the cylindrical movable shaft 8, and the bolt 9 is screwed into the nut 80. As mentioned above, the movable shaft 8 is inserted into the outer cylinder 7 while being prevented from rotating, so according to the above structure, by rotating the bolt 9, the movable shaft 8 can be moved in and out of the outer cylinder 7 by the feed screw. do. In this way, in this embodiment, since the drive section 6 has the feed screw mechanism, the configuration for moving the movable shaft 8 in and out of the outer cylinder 7 can be simplified.

さらに、上記構成によれば、曲げ等の外力がボルト9に作用しないので、一つの支柱装置Pにおけるボルト9の数を一本にできる。このため、一本のボルト9を回転操作して可動挟持片5を駆動し、この可動挟持片5と固定挟持片4bとでフランジs2を挟めば一つの支柱装置Pの固定作業が完了する。よって、本実施の形態の支柱装置Pによれば、取付対象への固定作業を容易にできる。 Furthermore, according to the above configuration, since external forces such as bending do not act on the bolts 9, the number of bolts 9 in one support device P can be reduced to one. Therefore, by rotating one bolt 9 to drive the movable clamping piece 5 and sandwiching the flange s2 between the movable clamping piece 5 and the fixed clamping piece 4b, the work of fixing one support device P is completed. Therefore, according to the strut device P of this embodiment, the work of fixing it to the object to be attached can be facilitated.

また、本実施の形態では、外筒7の内周形状とナット80の外周形状が四角状になっていて、ナット80が外筒7内に摺動可能に挿入されている。このように、外筒7の内周形状とナット80の外周形状を真円以外の形状とすることで、ナット80の外筒7に対する周方向の回転が阻止されて、可動軸8の外筒7に対する回り止めができる。さらには、ナット80の外周形状を真円以外の形状にして、このナット80で可動軸8の外筒7に対する回り止めをしているので、可動軸8の外筒7への出入りを円滑にできる。 Further, in the present embodiment, the inner peripheral shape of the outer cylinder 7 and the outer peripheral shape of the nut 80 are square, and the nut 80 is slidably inserted into the outer cylinder 7. In this way, by making the inner peripheral shape of the outer cylinder 7 and the outer peripheral shape of the nut 80 into shapes other than perfect circles, rotation of the nut 80 in the circumferential direction with respect to the outer cylinder 7 is prevented, and the outer cylinder of the movable shaft 8 is prevented from rotating in the circumferential direction. 7 can be prevented from rotating. Furthermore, the outer circumferential shape of the nut 80 is made into a shape other than a perfect circle, and the nut 80 prevents the movable shaft 8 from rotating relative to the outer cylinder 7, so that the movable shaft 8 can smoothly move in and out of the outer cylinder 7. can.

より詳しくは、例えば、従来の特開2018-087450号公報に記載の支柱装置では、図11に示すように、可動軸800が四角筒状でその四つの側面が外筒の内周に摺接しており、可動軸800自体が外筒に対して回り止めされる。このような場合、規格品の角鋼管(角パイプ)を利用して外筒と可動軸800の両方を形成できれば容易であるが、規格品の角鋼管のサイズ展開の関係でそのようにはできない場合がある。 More specifically, for example, in the conventional prop device described in JP-A No. 2018-087450, as shown in FIG. The movable shaft 800 itself is prevented from rotating relative to the outer cylinder. In such a case, it would be easier if both the outer cylinder and the movable shaft 800 could be formed using a standard square steel pipe, but this is not possible due to the size development of the standard square steel pipe. There are cases.

そこで、上記公報に記載の支柱装置では、外筒については規格品の角鋼管を利用して形成し、可動軸800については板材の両端を向い合せに折り曲げた二つのフレーム801,801を組み合わせて形成している。より具体的には、図11中に示す平行斜線は、溶接部を示しており、二つのフレーム801,801の上端をナット810の外周に溶接するとともに、下端を可動挟持片に溶接することで、二つのフレーム801,801を可動軸800として一体化している。しかし、これでは可動軸800の外周寸法のバラツキが大きくなって、可動軸800が外筒に出入りする際の動きが悪い(渋い)、又はガタツク等の不具合が起こる可能性がある。 Therefore, in the support device described in the above-mentioned publication, the outer cylinder is formed using a standard square steel pipe, and the movable shaft 800 is formed by combining two frames 801, 801, which are made by bending both ends of plate materials facing each other. is forming. More specifically, the parallel diagonal lines shown in FIG. 11 indicate welded parts, and the upper ends of the two frames 801, 801 are welded to the outer periphery of the nut 810, and the lower ends are welded to the movable clamping piece. , two frames 801, 801 are integrated as a movable shaft 800. However, this increases the variation in the outer circumferential dimension of the movable shaft 800, and there is a possibility that problems such as movement of the movable shaft 800 in and out of the outer cylinder may be slow (strained) or rattling may occur.

これに対して、本実施の形態では、ナット80を利用して可動軸8の外筒7に対する回り止めをしている。ナット80は、規格品でサイズがなくても、鋼板、棒鋼等を所定サイズに切り出してタップ加工(雌螺子加工)をすれば容易に形成できるとともに、寸法公差を少なくできる。つまり、ナット80の外筒7に対する摺動性を良好にするのが容易であるので、可動軸8の外筒7への出入りを円滑にできる。さらに、本実施の形態では、可動軸8が円筒状で外筒7の内周に摺接可能となっているので、可動軸8が外筒7内で傾くのを防止できる。 In contrast, in this embodiment, the nut 80 is used to prevent the movable shaft 8 from rotating relative to the outer cylinder 7. Even if the nut 80 is a standard product and does not have a certain size, it can be easily formed by cutting a steel plate, steel bar, etc. to a predetermined size and performing tapping (female screw processing), and the dimensional tolerance can be reduced. In other words, it is easy to improve the slidability of the nut 80 with respect to the outer cylinder 7, so that the movable shaft 8 can move in and out of the outer cylinder 7 smoothly. Furthermore, in this embodiment, the movable shaft 8 is cylindrical and can slide on the inner circumference of the outer cylinder 7, so that the movable shaft 8 can be prevented from tilting within the outer cylinder 7.

しかし、可動軸8は外筒7の内周に摺接していなくてもよく、可動軸8の外周がナット80の外周からはみ出していなければ、可動軸8の形状は自由に変更できる。また、可動軸8を外筒7に回り止めするための構成も適宜変更できる。例えば、本実施の形態では、外筒7の内周形状とナット80の外周形状を真円以外の形状にして回り止めしているが、その回り止めにピンと溝を利用してもよい。さらには、送り螺子機構以外の構成で可動軸8を外筒7に出入りさせてもよく、このような場合には、可動軸8が中実であってもよい。 However, the movable shaft 8 does not need to be in sliding contact with the inner periphery of the outer cylinder 7, and the shape of the movable shaft 8 can be freely changed as long as the outer periphery of the movable shaft 8 does not protrude from the outer periphery of the nut 80. Further, the configuration for preventing rotation of the movable shaft 8 to the outer tube 7 can be changed as appropriate. For example, in the present embodiment, the inner peripheral shape of the outer cylinder 7 and the outer peripheral shape of the nut 80 are made into shapes other than perfect circles to prevent rotation, but pins and grooves may be used to prevent rotation. Furthermore, the movable shaft 8 may be moved in and out of the outer cylinder 7 using a structure other than the feed screw mechanism, and in such a case, the movable shaft 8 may be solid.

また、本実施の形態では、上記支柱装置Pが横方向に並べて複数配置されるとともに、その複数の支柱装置Pと、隣り合う支柱装置P,Pの支柱1,1間に展張されるロープRとを備えて手摺装置Hが構成されている。そして、支柱装置Pが手摺装置Hの内側から見て支柱1の手前側面と固定具2との間に架設される補強板3を備えている。これにより、作業者が通路等から落下して支柱1に左回転又は右回転のモーメントが作用した際、支柱1が左右に傾くのを補強板3で抑制し、支柱1がその根元から折損するのを防止できる。 In addition, in this embodiment, a plurality of the above-mentioned prop devices P are arranged side by side in the horizontal direction, and a rope R stretched between the plurality of prop devices P and the columns 1, 1 of the adjacent prop devices P, P. The handrail device H is comprised of the following. The strut device P includes a reinforcing plate 3 installed between the front side surface of the strut 1 and the fixture 2 when viewed from inside the handrail device H. As a result, when a worker falls from a passage or the like and a moment of left or right rotation is applied to the column 1, the reinforcement plate 3 prevents the column 1 from tilting to the left or right, and the column 1 breaks from its base. can be prevented.

また、本実施の形態の支柱装置Pでは、補強板3が支柱1の軸方向に間隔をあけて結合される第一、第二の結合部30,31と、これら結合部30,31の間に位置して支柱1から離間する取っ手部32とを含む。これにより、作業者が支柱装置Pを運搬する際にその取っ手部32を掴めるので便利である。さらに、本実施の形態では、補強板3の板厚方向の延長上に支柱1が位置し、また、補強板3が支柱1の軸方向の略中央部分に連結されているので、支柱1の倒れをより確実に抑制できる。 In addition, in the strut device P of the present embodiment, the reinforcing plate 3 is connected to the first and second connecting portions 30 and 31 that are connected at intervals in the axial direction of the strut 1, and between these connecting portions 30 and 31. and a handle portion 32 located at and spaced apart from the support column 1. This is convenient because the operator can grasp the handle portion 32 when transporting the prop device P. Furthermore, in this embodiment, the support column 1 is located on the extension of the reinforcement plate 3 in the plate thickness direction, and the reinforcement plate 3 is connected to the approximately central portion of the support column 1 in the axial direction. Falling down can be suppressed more reliably.

しかし、補強板3は、支柱1の手前側面と固定具2とを連結するようになっている限り、支柱1及び固定具2のどの位置をつないでいてもよい。例えば、本実施の形態では、補強板3の下端が外筒7の蓋部70に溶接されているが、外筒7の側面に溶接されていてもよい。さらに、補強板3と支柱1との結合部が一カ所で、取っ手部32を廃してもよい。また、図10に示すように、支柱1がH鋼Sから垂直方向へ起立する場合等、倒れに対して有利な構造となっている場合には、補強板3を廃し、取っ手33を支柱1の後側(背面)に取り付けてもよい。 However, the reinforcing plate 3 may connect any position of the column 1 and the fixture 2 as long as it connects the front side surface of the column 1 and the fixture 2. For example, in this embodiment, the lower end of the reinforcing plate 3 is welded to the lid portion 70 of the outer cylinder 7, but it may be welded to the side surface of the outer cylinder 7. Furthermore, the handle portion 32 may be eliminated since the reinforcing plate 3 and the support column 1 are connected at one place. In addition, as shown in FIG. 10, when the support 1 stands up vertically from the H steel S, etc., and has a structure that is advantageous against falling, the reinforcing plate 3 is eliminated and the handle 33 is attached to the support 1. It can also be attached to the rear side (rear side).

以上、本発明の好ましい実施の形態を詳細に説明したが、特許請求の範囲から逸脱しない限り、改造、変形、及び変更が可能である。 Although the preferred embodiments of the present invention have been described in detail above, modifications, variations, and changes can be made without departing from the scope of the claims.

H・・・手摺装置、P・・・支柱装置、R・・・ロープ、1・・・支柱、2・・・固定具、3・・・補強板、4・・・本体部、4a・・・支持部、4b・・・固定挟持片、4c・・・連結部、5・・・可動挟持片、6・・・駆動部、7・・・外筒、8・・・可動軸、9・・・ボルト、80・・・ナット
H... Handrail device, P... Support device, R... Rope, 1... Support, 2... Fixture, 3... Reinforcement plate, 4... Main body, 4a...・Support part, 4b... Fixed clamping piece, 4c... Connecting part, 5... Movable clamping piece, 6... Drive part, 7... Outer cylinder, 8... Movable shaft, 9.・・Bolt, 80・・Nut

Claims (3)

支柱と、前記支柱を取付対象に固定する固定具とを備える支柱装置であって、
前記固定具は、
所定の間隔をあけて向かい合わせに配置される支持部及び固定挟持片と、前記支持部の一端と前記固定挟持片の一端を連結する連結部とを含んで前記支柱が固定される本体部と、
前記支持部と前記固定挟持片の間に配置されて前記固定挟持片との間に前記取付対象を挟持可能な可動挟持片と、
前記支持部に固定される外筒と、前記外筒内に軸方向へ移動可能に挿入されて先端に前記可動挟持片が連結される筒状の可動軸と、前記可動軸の一端に固定されて前記外筒内に摺動可能に挿入されるナットと、前記ナットに螺合されるボルトとを有するとともに、前記可動軸を前記外筒に出入りさせることで前記可動挟持片を前記固定挟持片に遠近させる駆動部とを具備し
前記可動挟持片における前記可動軸の延長上にある部分が一枚板状であって、前記取付対象に当接可能とされており、
前記外筒の内周形状と前記ナットの外周形状は、真円以外の形状となっており、
前記ナットで前記可動軸の前記外筒に対する回り止めがなされている
ことを特徴とする支柱装置。
A strut device comprising a strut and a fixture for fixing the strut to an attachment target,
The fixture is
A main body part to which the support column is fixed, including a support part and a fixed clamping piece arranged facing each other at a predetermined interval, and a connecting part connecting one end of the support part and one end of the fixed clamping piece. ,
a movable clamping piece that is disposed between the support part and the fixed clamping piece and can clamp the attachment target between the fixed clamping piece;
an outer cylinder fixed to the support part ; a cylindrical movable shaft that is inserted movably in the axial direction into the outer cylinder and to which the movable clamping piece is connected to the tip; and fixed to one end of the movable shaft . and a nut that is slidably inserted into the outer cylinder and a bolt that is screwed into the nut, and the movable clamping piece is fixed by moving the movable shaft into and out of the outer cylinder. and a drive unit that moves the gripping piece closer to or closer to the gripping piece,
A portion of the movable clamping piece that is on an extension of the movable shaft is plate-shaped and can come into contact with the attachment target ,
The inner peripheral shape of the outer cylinder and the outer peripheral shape of the nut are shapes other than perfect circles,
The nut prevents the movable shaft from rotating relative to the outer cylinder.
A prop device characterized by:
前記支持部の他端と前記固定挟持片の他端とが手前側に上下に並ぶように見た状態で、前記可動軸は、前記可動挟持片の左右中央で、且つ、前後中央から前方へずれた位置に連結されている
ことを特徴とする請求項1に記載の支柱装置。
When the other end of the support portion and the other end of the fixed clamping piece are viewed as being lined up vertically toward the front, the movable shaft is located at the left and right center of the movable clamping piece, and extends forward from the front and rear center. The strut device according to claim 1, wherein the strut device is connected at a shifted position.
請求項1又は2に記載の支柱装置を備える手摺装置であって、
横方向に並べて配置される複数の前記支柱装置と、
隣り合う前記支柱装置の前記支柱間に展張されるロープとを備え、
前記支柱装置は、前記手摺装置の内側から見て前記支柱の手前側面と前記固定具との間に架設される補強板を備えている
ことを特徴とする手摺装置。
A handrail device comprising the support device according to claim 1 or 2 ,
a plurality of said support devices arranged side by side in the horizontal direction;
and a rope stretched between the supports of the adjacent support devices,
The handrail device is characterized in that the support support device includes a reinforcing plate installed between the front side surface of the support support and the fixture when viewed from inside the handrail device.
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JP3053816U (en) 1998-05-06 1998-11-17 城東産業株式会社 Parent rope support
JP3077741U (en) 2000-11-15 2001-05-29 大洋製器工業株式会社 Prop for main rope
JP2003339894A (en) 2002-05-29 2003-12-02 Kyowa Rope:Kk Inclination-adjustable main rope support
JP3161900U (en) 2010-06-02 2010-08-12 トヨタホーム株式会社 Post mounting hardware
JP2018087450A (en) 2016-11-29 2018-06-07 小野 辰雄 Support device

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JPH0738567Y2 (en) * 1991-12-24 1995-09-06 住友軽金属工業株式会社 Parent rope
JP2789517B2 (en) * 1995-03-30 1998-08-20 住友軽金属工業株式会社 Parent rope support

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Publication number Priority date Publication date Assignee Title
JP3053816U (en) 1998-05-06 1998-11-17 城東産業株式会社 Parent rope support
JP3077741U (en) 2000-11-15 2001-05-29 大洋製器工業株式会社 Prop for main rope
JP2003339894A (en) 2002-05-29 2003-12-02 Kyowa Rope:Kk Inclination-adjustable main rope support
JP3161900U (en) 2010-06-02 2010-08-12 トヨタホーム株式会社 Post mounting hardware
JP2018087450A (en) 2016-11-29 2018-06-07 小野 辰雄 Support device

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