JPH0820961A - Hanger type work scaffolding plate - Google Patents
Hanger type work scaffolding plateInfo
- Publication number
- JPH0820961A JPH0820961A JP6154466A JP15446694A JPH0820961A JP H0820961 A JPH0820961 A JP H0820961A JP 6154466 A JP6154466 A JP 6154466A JP 15446694 A JP15446694 A JP 15446694A JP H0820961 A JPH0820961 A JP H0820961A
- Authority
- JP
- Japan
- Prior art keywords
- hanger
- plate
- scaffolding plate
- type work
- work
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、マンホール内のステッ
プ金具に着脱自在な新規なハンガー式作業足場板に関す
る。特に、マンホール内において作業足場を簡便に構成
するのに好適な発明である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel hanger type work scaffolding plate which can be attached to and detached from a step fitting in a manhole. In particular, the present invention is suitable for easily constructing a work scaffold in a manhole.
【0002】[0002]
【従来の技術】従来、マンホール内における作業は、マ
ーホール設置時及び設置後の、マンホール管に当初から
所定間隔で形成されているコ字形のステップ金具に足の
載せて行っていた。2. Description of the Related Art Conventionally, work in a manhole has been performed by placing feet on U-shaped step metal fittings which are formed at a predetermined interval from the beginning of a manhole pipe at the time of installing the marhole and after installation.
【0003】例えば、設置後の、マンホール11の底部
付近での溝流路13のコンクリート塗り作業は、図1に
示すように、作業者Mが、一方の足を最下段のステップ
金具15に載せるとともに他方の足をマンホール11の
内壁面17に当て、一方の手で上方のステップ金具15
を把持しながら、明いた手でコンクリート塗りを行う必
要がある。For example, as shown in FIG. 1, the worker M puts one foot on the step metal fitting 15 at the lowermost stage in the concrete painting work of the groove flow path 13 near the bottom of the manhole 11 after the installation. At the same time, the other foot is brought into contact with the inner wall surface 17 of the manhole 11, and the upper step fitting 15 is held with one hand.
It is necessary to apply concrete with a clear hand while grasping.
【0004】さらに、高所でマンホールの壁面にドリル
等で流入主管用の穴明けするような場合は、命綱で作業
者の身体を縛って、やはり双方の足をステップ金具に載
せて行っていた。Further, in the case of making a hole for the main inlet pipe with a drill or the like on the wall of the manhole at a high place, the body of the worker is bound with a lifeline, and both feet are placed on the step metal fittings. .
【0005】[0005]
【発明が解決しようとする課題】しかし、上記底部及び
上・中部位のいずれにおいても、作業姿勢が不自然とな
り、作業効率が悪いとともに、安全性にも問題がある。However, the work posture becomes unnatural at both the bottom portion and the upper and middle portions, resulting in poor work efficiency and safety problems.
【0006】このため、下記構成の踊り場付き直壁管の
製造方法が提案されている(特公平1−46657号公
報参照)。For this reason, a method of manufacturing a straight wall tube with a landing having the following structure has been proposed (see Japanese Patent Publication No. 1-46657).
【0007】「1個の直壁コンクリート管を水平に2分
割して夫々上下管とすると共に内周璧上縁部にリング状
凹欠段部を形成し、かつ昇降孔を側部に持った円板状踊
り場板の外周側面に前記下管の凹欠段部に挿入し得る凸
条を突設し、該凸条を凹欠段部に嵌入すると共にその凸
条の上面を上管の下端縁によって押圧支持し、更に前記
凸条及び凹欠段部の周りをモルタル等を充填することに
よって水密状とすることと共に前記上管及び下管の外周
壁面に締結プレートを取り付けて上管、下管及び踊り場
板の三者を一体的に構成したことを特徴とした踊り場付
き直壁管の製造方法。」 しかし、上記踊り場は、固定方式で取り付け位置が限定
され、所定部位での作業にしか適さなかった。"One straight wall concrete pipe is horizontally divided into two pipes to form upper and lower pipes, respectively, and a ring-shaped recessed step portion is formed on the upper edge of the inner peripheral wall, and an elevating hole is provided on the side portion. On the outer peripheral side surface of the disk-shaped landing plate, a projecting ridge that can be inserted into the recessed stepped portion of the lower tube is projected, and the projecting ridge is fitted into the recessed stepped portion, and the upper surface of the ridge is the lower end of the upper pipe. It is pressed and supported by an edge, and is made watertight by filling the surroundings of the convex stripes and the concave stepped portions with mortar etc., and at the same time, the fastening plates are attached to the outer peripheral wall surfaces of the upper pipe and the lower pipe to attach the upper pipe and the lower pipe. A method of manufacturing a straight-walled pipe with a landing, characterized in that the pipe and the landing board are integrally configured. ”However, the landing is fixed and the mounting position is limited. It wasn't suitable.
【0008】本発明は、上記にかんがみて、所定高さの
ステップ金具に脱着が容易で、マンホール内での各種作
業に対応できるハンガー式作業足場板を提供することを
目的とする。[0008] In view of the above, it is an object of the present invention to provide a hanger type work scaffolding plate which can be easily attached to and detached from a step fitting having a predetermined height and can be used for various works in a manhole.
【0009】[0009]
【課題を解決するための手段】本発明に係るハンガー式
作業足場板は、上記課題を、下記構成により解決するも
のである。A hanger type work scaffolding board according to the present invention solves the above problems by the following constitution.
【0010】マンホール内のステップ金具に着脱自在な
ハンガー式作業足場板であって、足場板本体と、該足場
板本体の上面前端両側から上方へ突出する一対のハンガ
ー板部とからなり、該ハンガー板部は、足場板本体前端
と前端が面一に形成された壁面当接部と、該壁面当接部
の上端から後方に伸びるアーム部と、該アーム部の上端
に形成され、ステップ金具の横桟部に係合する鉤部とか
らなる、ことを特徴とする。A hanger-type work scaffolding plate which is detachably mountable to a step fitting in a manhole, and which comprises a scaffolding plate main body and a pair of hanger plate portions projecting upward from both front ends of the upper surface of the scaffolding plate main body. The plate portion is formed on the wall surface contact portion whose front end and front end are flush with each other, the arm portion that extends rearward from the upper end of the wall surface contact portion, and the upper end of the arm portion. And a hook portion that engages with the horizontal rail portion.
【0011】[0011]
【実施例】以下、本発明の一実施例を、図例に基づいて
説明するが、本発明は、これに限られるものではない。
また、既述と同一部分については、同一図符号を付す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings, but the present invention is not limited to this.
The same parts as those described above are designated by the same reference numerals.
【0012】(1) 本実施例のハンガー式作業足場板は、
足場板本体21と、該足場板本体21の上面前端両側か
ら上方へ突出する一対のハンガー板部23とからなる
(図2〜3参照)。(1) The hanger type work scaffolding board of this embodiment is
The scaffolding plate body 21 and a pair of hanger plate portions 23 projecting upward from both sides of the front end of the scaffolding plate body 21 (see FIGS. 2 to 3).
【0013】そして、ハンガー板部23は、足場板本体
21前端と前端が面一に形成された壁面当接部25と、
該壁面当接部25の上端から後方に伸びるアーム部27
と、該アーム部27の上端に形成され、ステップ金具1
5の横桟部15aに係合する鉤部29とからなる.必然
的ではないが、図例では、ハンガー板部23の壁面当接
部25間には補強板31が介在している。The hanger plate portion 23 includes a wall surface abutting portion 25 having a front end flush with the front end of the scaffolding plate body 21,
An arm portion 27 extending rearward from the upper end of the wall surface abutting portion 25
And the step fitting 1 formed on the upper end of the arm portion 27.
5 and the hook portion 29 that engages with the horizontal rail portion 15a. Although not inevitable, a reinforcing plate 31 is interposed between the wall surface abutting portions 25 of the hanger plate portion 23 in the illustrated example.
【0014】また、ハンガー板部23のアーム部27の
前端面27aがステップ金具15の導入面とされてい
る。ハンガー板部23の鉤部29を、ステップ金具15
に係合させる際の作業を円滑に行うためである。Further, the front end surface 27a of the arm portion 27 of the hanger plate portion 23 serves as an introduction surface for the step fitting 15. Attach the hook 29 of the hanger plate 23 to the step fitting 15
This is for smoothly performing the work for engaging with.
【0015】更に、ハンガー板部23の鉤部29の内側
面が、アーム部27のステップ金具導入面27aを接線
としアーム部上端対向位置で終了する略半円である。こ
の構成も鉤部29をステップ金具15に係合させる際の
作業を円滑に行うためのものである。Further, the inner side surface of the hook portion 29 of the hanger plate portion 23 is a substantially semicircle which ends at the position facing the upper end of the arm portion with the step fitting introduction surface 27a of the arm portion 27 as a tangent line. This structure is also for smoothly performing the work for engaging the hook portion 29 with the step fitting 15.
【0016】そして、この作業足場板は、取扱性の見地
から、足場板本体21とハンガー板部27が実質的にア
ルミニウム製であることが望ましい。このとき、ハニカ
ム板等とすると更に、軽量化されて取扱性が更に良好と
なる。なお、鉄製であると、重量が増大し、取扱性に問
題が発生しやすくなる。また、アルミニウム製の代わり
に、強度的に問題がなければ、強化プラスック製(例え
ば、金属補強材でインサート成形する)等であってもよ
い。From the standpoint of handleability, it is desirable that the scaffolding plate body 21 and the hanger plate portion 27 of this work scaffolding plate be substantially made of aluminum. At this time, if a honeycomb plate or the like is used, the weight is further reduced and the handleability is further improved. In addition, when it is made of iron, the weight is increased, and a problem in handleability easily occurs. Further, instead of aluminum, if there is no problem in strength, it may be made of reinforced plastic (for example, insert-molded with a metal reinforcing material).
【0017】また、足場板本体は、チェッカープレート
(縞板)等、または、表面をゴム板貼着して滑り止め処
理されたものを使用することが望ましい。The scaffolding plate body is preferably a checker plate (striped plate) or the like, or one whose surface is adhered with a rubber plate to prevent slipping.
【0018】上記足場板本体21の大きさは、例えば、
幅30cm×長さ60cm、ハンガー板部の高さは、30c
m、鉤部29の内径:25R、外径:55Rとする。ま
た、アーム部27の前端面27aの傾斜角度は、50°
前後とする。The size of the scaffold plate body 21 is, for example,
Width 30 cm x length 60 cm, the height of the hanger plate is 30 c
m, the inner diameter of the hook portion 29: 25R, the outer diameter: 55R. The inclination angle of the front end surface 27a of the arm portion 27 is 50 °.
Before and after.
【0019】(2) 次に、上記ハンガー式作業足場板の使
用態様を説明する。(2) Next, a usage mode of the hanger type work scaffolding plate will be described.
【0020】図3に示す如く、略水平に本作業足場板S
を、ステップ金具15に対して、ハンガー板部23の壁
面当接部25またはアーム部27の前端面(ステップ金
具導入面)27aを当接しながら、下方へ移動させれ
ば、ステップ金具導入面27aを介して、ステップ金具
15の横桟15aが、ハンガー板部23の鉤部29と嵌
着するとともに、ハンガー板部23の壁面当接部25が
マンホール11の壁面に当接する。こうして、上方へ引
き上げなければ、ステップ金具からはずれるおそれがな
く、作業者Mが載っている限り、安定した状態を維持す
る(図4〜6参照)。As shown in FIG. 3, the main work scaffold S is substantially horizontal.
Is moved downward while contacting the wall surface contact portion 25 of the hanger plate portion 23 or the front end surface (step metal fitting introduction surface) 27a of the arm portion 27 with the step metal fitting 15, the step metal fitting introduction surface 27a The horizontal rail 15a of the step fitting 15 is fitted into the hook portion 29 of the hanger plate portion 23, and the wall surface abutting portion 25 of the hanger plate portion 23 abuts on the wall surface of the manhole 11. In this way, unless it is pulled up, there is no risk of it coming off the step fitting, and as long as the worker M is on it, a stable state is maintained (see FIGS. 4 to 6).
【0021】例えば、前述のマンホール11の底部付近
での溝流路13のコンクリート塗り作業を、下方部のス
テップ金具15に本作業足場板Sを取りつければ、図4
に示す如く、安定した姿勢で行うことが可能となる。For example, the concrete painting work of the groove flow path 13 near the bottom of the manhole 11 described above can be performed by attaching the working scaffold plate S to the step fitting 15 at the lower part as shown in FIG.
As shown in, it becomes possible to perform the operation in a stable posture.
【0022】また、図5に示す如く、マンホールの組み
立て作業や、図6に示す如く、マンホール組み立て後
の、マンホールの主管用孔明け作業も、安定した姿勢で
行うことが可能となる。Further, the manhole assembling work as shown in FIG. 5 and the manhole main pipe drilling work after assembling the manhole as shown in FIG. 6 can be carried out in a stable posture.
【0023】なお、本作業足場板Sをステップ金具15
から取り外すときは、略水平状態で上方へ移動させれば
簡単に取り外せる。具体的には、通常、上方のステップ
金具15に足を移して、一方の手でさらに上方のステッ
プ金具15を把持しながら、明いた手で作業足場板Sを
把持して上方へ移動させて行う。The work scaffolding plate S is attached to the step fitting 15
When removing from, you can easily remove it by moving it in a substantially horizontal state. Specifically, normally, the foot is transferred to the upper step metal fitting 15 and the work footing board S is grasped and moved upward while grasping the upper step metal fitting 15 with one hand while holding the work scaffolding board S with the open hand. To do.
【0024】[0024]
【発明の作用・効果】本発明のハンガー式作業足場板
は、上記の如く、足場板本体と、該足場板本体の上面前
端両側から上方へ突出する一対のハンガー板部とからな
り、ハンガー板部は、前記足場板本体前端と前端が面一
に形成された壁面当接部と、該壁面当接部の上端から後
方に伸びるアーム部と、該アーム部の上端に形成され、
前記ステップ金具の横桟部に係合する鉤部とからなる、
構成により、下記のような作用効果を奏するものであ
る。As described above, the hanger type work scaffolding plate of the present invention comprises the scaffolding plate body and the pair of hanger plate portions projecting upward from both sides of the upper front end of the scaffolding plate body. The portion is formed at the upper end of the arm portion, the wall surface abutting portion whose front end and the front end are formed flush with each other, the arm portion extending rearward from the upper end of the wall surface abutting portion,
Consisting of a hook portion that engages with the horizontal rail portion of the step fitting,
Depending on the configuration, the following operational effects are achieved.
【0025】本作業足場板Sを、ステップ金具15に対
して、ハンガー板部23の壁面当接部25またはアーム
部27の前端面(ステップ金具導入面)27aを当接さ
せながら、下方へ移動させれば、ステップ金具導入面2
7aを介して、ステップ金具15の横桟15aが、ハン
ガー板部23の鉤部29と嵌着するとともに、ハンガー
板部23の壁面当接部25がマンホール11の壁面に当
接する。また、ステップ金具15からの本作業足場板S
の取り外しも、略水平状態で上方へ移動させれば、簡単
に行うことができる。The working scaffolding plate S is moved downward while the wall surface contact portion 25 of the hanger plate portion 23 or the front end surface (step metal fitting introduction surface) 27a of the arm portion 27 is brought into contact with the step fitting 15. If so, the step fitting introduction surface 2
The horizontal rail 15a of the step fitting 15 is fitted to the hook portion 29 of the hanger plate portion 23 via the 7a, and the wall surface contact portion 25 of the hanger plate portion 23 contacts the wall surface of the manhole 11. Also, the main work scaffold S from the step fitting 15
It can be easily removed by moving it upward in a substantially horizontal state.
【0026】こうして、本作業足場板は、所定高さのス
テップ金具に、容易に脱着可能となる。従って、本発明
の作業足場板は、マンホール組み立て時、及び、組み立
て後の各種作業が、安定した姿勢で行うことが可能とな
り、作業効率及び作業安全性の向上に寄与する。In this way, the working scaffolding plate can be easily attached to and detached from the step fitting having a predetermined height. Therefore, the work scaffolding board of the present invention enables various operations during and after assembly of the manhole to be performed in a stable posture, which contributes to improvement of work efficiency and work safety.
【図1】従来のマンホール内における作業姿勢の一例を
示す断面図FIG. 1 is a sectional view showing an example of a conventional work posture in a manhole.
【図2】本発明のハンガー式作業足場板の一例を示す斜
視図FIG. 2 is a perspective view showing an example of a hanger type work scaffolding plate of the present invention.
【図3】図2の作業足場板の取り付け直前状態を示す断
面図FIG. 3 is a cross-sectional view showing a state immediately before attachment of the work scaffolding plate of FIG.
【図4】図2の作業足場板を使用してのマンホール内の
一作業態様を示す断面図FIG. 4 is a cross-sectional view showing one working mode in a manhole using the working scaffolding plate of FIG.
【図5】同じく他の作業態様を示す断面図FIG. 5 is a sectional view showing another working mode.
【図6】同じくさらに他の作業態様を示す断面図FIG. 6 is a sectional view showing still another working mode.
11 マンホール 15 ステップ金具 15a ステップ金具の横桟部 21 足場板本体 23 ハンガー板部 27 アーム部 27a アーム部の前端面(ステップ金具導入面) 29 鉤部 S (ハンガー式)作業足場板 11 Manhole 15 Step metal fitting 15a Side rail of step metal fitting 21 Scaffold plate body 23 Hanger plate part 27 Arm part 27a Front end surface of arm part (step metal fitting introduction surface) 29 Hook part S (hanger type) work scaffolding board
Claims (4)
なハンガー式作業足場板であって、 足場板本体と、該足場板本体の上面前端両側から上方へ
突出する一対のハンガー板部とからなり、 該ハンガー板部は、前記足場板本体前端と前端が面一に
形成された壁面当接部と、該壁面当接部の上端から後方
に伸びるアーム部と、該アーム部の上端に形成され、前
記ステップ金具の横桟部に係合する鉤部とからなる、 ことを特徴とするハンガー式作業足場板。1. A hanger-type work scaffolding plate that is detachably attached to a step fitting in a manhole, comprising a scaffolding plate body and a pair of hanger plate portions projecting upward from both upper front ends of the scaffolding plate body. The hanger plate portion is formed on a wall surface contact portion whose front end and front end are flush with each other, an arm portion extending rearward from an upper end of the wall surface contact portion, and an upper end of the arm portion. A hanger type work scaffolding plate, comprising: a hook portion that engages with a cross rail portion of the step fitting.
アーム部の前端面がステップ金具の導入面とされている
ことを特徴とするハンガー式作業足場板。2. The hanger-type work scaffolding plate according to claim 1, wherein a front end surface of the arm portion of the hanger plate portion serves as an introduction surface of a step fitting.
鉤部の内側面が、前記アーム部のステップ金具導入面を
接線とし前記アーム部上端対向位置で終了する略半円で
あることを特徴とするハンガー式作業足場板。3. The inner surface of the hook portion of the hanger plate portion according to claim 1, wherein the inner surface of the hook portion is a substantially semicircle that is tangential to the step fitting introduction surface of the arm portion and ends at a position facing the upper end of the arm portion. Hanger type working scaffolding board.
ンガー板部が実質的にアルミニウム製であることを特徴
とするハンガー式作業足場板。4. The hanger-type work scaffolding plate according to claim 1, wherein the scaffolding plate body and the hanger plate portion are substantially made of aluminum.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6154466A JP2750564B2 (en) | 1994-07-06 | 1994-07-06 | Hanger type work scaffold |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6154466A JP2750564B2 (en) | 1994-07-06 | 1994-07-06 | Hanger type work scaffold |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0820961A true JPH0820961A (en) | 1996-01-23 |
JP2750564B2 JP2750564B2 (en) | 1998-05-13 |
Family
ID=15584866
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6154466A Expired - Fee Related JP2750564B2 (en) | 1994-07-06 | 1994-07-06 | Hanger type work scaffold |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2750564B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002339386A (en) * | 2001-05-15 | 2002-11-27 | Chuo Concrete Kogyo Kk | Portable step |
JP2011168969A (en) * | 2010-02-16 | 2011-09-01 | Chugoku Electric Power Co Inc:The | Scaffolding board fixing device for installing liner plate structure |
JP2015168182A (en) * | 2014-03-07 | 2015-09-28 | 日本ステップ工業株式会社 | Drilling device of step mounting hole |
CN111298325A (en) * | 2020-04-14 | 2020-06-19 | 西安科技大学 | Detection and rescue integrated deep well rescue device |
-
1994
- 1994-07-06 JP JP6154466A patent/JP2750564B2/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002339386A (en) * | 2001-05-15 | 2002-11-27 | Chuo Concrete Kogyo Kk | Portable step |
JP2011168969A (en) * | 2010-02-16 | 2011-09-01 | Chugoku Electric Power Co Inc:The | Scaffolding board fixing device for installing liner plate structure |
JP2015168182A (en) * | 2014-03-07 | 2015-09-28 | 日本ステップ工業株式会社 | Drilling device of step mounting hole |
CN111298325A (en) * | 2020-04-14 | 2020-06-19 | 西安科技大学 | Detection and rescue integrated deep well rescue device |
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JP2750564B2 (en) | 1998-05-13 |
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