JP3079159U - Cylindrical safety fence for construction holes - Google Patents
Cylindrical safety fence for construction holesInfo
- Publication number
- JP3079159U JP3079159U JP2001000276U JP2001000276U JP3079159U JP 3079159 U JP3079159 U JP 3079159U JP 2001000276 U JP2001000276 U JP 2001000276U JP 2001000276 U JP2001000276 U JP 2001000276U JP 3079159 U JP3079159 U JP 3079159U
- Authority
- JP
- Japan
- Prior art keywords
- safety fence
- segment
- segments
- construction hole
- cylindrical
- 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.)
- Expired - Lifetime
Links
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
(57)【要約】
【課題】 設置、撤去、運搬の容易な折畳式の円筒形安
全柵を提供する。
【解決手段】 安全柵を上から見て４つの部分（セグメ
ント）１５に分割し、これらをピン１９で連結して円筒
形に構成する。第１のセグメント１５ａと第４のセグメ
ント１５ｄの連結部は、連結ピン１９を抜き取ることが
でき、この部分で切り離すことができる。この安全柵
は、トップレール５に設けたアイピース３３にスリング
を掛けてクレーンで吊り上げ、工事穴３５の上に設置す
る。安全柵下部の基枠１には、本体部より径の小さな挿
入部１１があって、これが仮設ケーシング３７の中には
まり込み、ずれないようになる。安全柵を輸送または保
管するときは、第１と第４のセグメント１５ａ、１５ｄ
の間を切り離し、第１のセグメント１５ａを中心にして
これを巻き込むように順次折り畳む。
(57) [Summary] [Problem] To provide a foldable cylindrical safety fence that is easy to install, remove, and transport. SOLUTION: A safety fence is divided into four parts (segments) 15 when viewed from above, and these are connected by pins 19 to form a cylindrical shape. The connecting portion between the first segment 15a and the fourth segment 15d can be pulled out of the connecting pin 19 and can be separated at this portion. This safety fence is installed on a construction hole 35 by hanging a sling on an eyepiece 33 provided on the top rail 5 and lifting it with a crane. In the base frame 1 below the safety fence, there is an insertion part 11 having a smaller diameter than the main body part, which fits into the temporary casing 37 and does not shift. When transporting or storing the safety fence, the first and fourth segments 15a, 15d
Are separated, and the first segment 15a is sequentially folded so as to be wound around the first segment 15a.
Description
【０００１】[0001]
この考案は、工事穴の上に載置する円筒形の安全柵に関する。 The present invention relates to a cylindrical safety fence to be placed on a construction hole.
【０００２】[0002]
下水道などの工事では、地表にあいた工事穴は、落下防止のため周りに安全柵 を巡らすことが必要であり、従来、ユニット化された複数の柵を、工事穴の周り を取り囲むように配置して互いに連結するものが広く使われている。しかしこの 種のものでは、組立や分解に多くの手間がかかる欠点がある。 In sewerage and other construction work, it is necessary to lay a safety fence around the construction hole on the ground surface to prevent it from falling.Conventionally, multiple unitized fences have been arranged so as to surround the construction hole. What is connected to each other is widely used. However, this type has a drawback that the assembly and disassembly require much labor.
【０００３】[0003]
この考案は、設置、撤去、運搬の容易な折畳式の円筒形安全柵を提供する。 This invention provides a foldable cylindrical safety fence that is easy to install, remove, and transport.
【０００４】[0004]
この考案の工事穴用筒形安全柵は、工事穴の上に載置する筒形の安全柵であっ て、上から見て３つ以上のセグメントに分割され、隣接するセグメント同士は、 １箇所で切り離し自在に連結され、それ以外の個所は、内側にのみ回動できるよ う枢支されている（請求項１）。 The cylindrical safety fence for construction holes of this invention is a cylindrical safety fence that is mounted on the construction hole and is divided into three or more segments when viewed from above. The other parts are pivotally supported so that they can be turned only inward (claim 1).
【０００５】 このように構成したので、使用しないときは、一箇所を切り離し、セグメント を順に中に巻き込むように折り畳んでかさばらないような格好にすることができ 、運搬、保管に便利である。[0005] With such a configuration, when not in use, one part can be cut off, and the segments can be folded so as to be rolled up in order, so that they are not bulky, which is convenient for transportation and storage.
【０００６】 なおセグメントの一つに扉を設ければ、作業員の通行が容易になる（請求項２ ）。安全柵の下部に、安全柵本体部より小さな直径の挿入部を設け、設置の際、 この挿入部を工事穴に挿入すれば、安全柵が工事穴からずれるおそれがなく安全 である（請求項３）。また、安全柵の下部を土留めの板で取り囲むことにより、 安全柵を通り抜けて土砂が工事穴に落ちるのを防止できる（請求項４）。[0006] If a door is provided in one of the segments, the passage of workers becomes easy (claim 2). If an insertion part with a smaller diameter than the main part of the safety fence is provided at the lower part of the safety fence, and this insertion part is inserted into the construction hole during installation, the safety fence will not be displaced from the construction hole and it is safe. 3). Also, by surrounding the lower part of the safety fence with a retaining plate, it is possible to prevent earth and sand from passing through the safety fence and falling into the construction hole (claim 4).
【０００７】[0007]
この安全柵は図１および図２に示すように円筒かご形であり、円形の基枠１の 上に支柱３が立ち、それら支柱の間にトップレール（手摺り）５と中間レール７ が渡してある。基枠１は、図３に示すように断面が逆Ｌ字形をしており、逆Ｌの 字の横棒が鍔９を、縦棒が挿入部１１を形成している。また、基枠の鍔９の上に は土留めの板１３が巡らしてある。 As shown in FIGS. 1 and 2, the safety fence has a cylindrical cage shape, and a column 3 stands on a circular base frame 1, and a top rail (handrail) 5 and an intermediate rail 7 pass between the columns. It is. As shown in FIG. 3, the base frame 1 has an inverted L-shaped cross section, and a horizontal bar of the inverted L shape forms the flange 9, and a vertical bar forms the insertion portion 11. An earth retaining plate 13 is provided on the base frame flange 9.
【０００８】 安全柵は折り畳めるよう、図２に示すように、上から見ると４つの部分（セグ メント）１５に分割されており、これらを連結して円筒形に構成される。前記支 柱３は、いずれも各セグメント１５の両側に配置されており、各支柱には、内側 に突出する格好で耳１７が溶接してあり、隣同士の支柱は、これら耳と耳を重ね 合わせ、連結ピン１９を挿入することで互いに連結されている。第１のセグメン ト１５ａと第４のセグメント１５ｄの連結部は、連結ピン１９を抜き取ることが でき、図２に鎖線で示すように、この部分で切り離すことができる。As shown in FIG. 2, the safety fence is divided into four parts (segments) 15 as viewed from above so as to be foldable, and these are connected to each other to form a cylindrical shape. Each of the columns 3 is disposed on both sides of each segment 15, and each column is provided with an ear 17 welded in a protruding inward direction, and the adjacent columns are overlapped with these ears. They are connected to each other by fitting and inserting the connecting pins 19. The connecting portion between the first segment 15a and the fourth segment 15d can be pulled out of the connecting pin 19, and can be separated at this portion as shown by a chain line in FIG.
【０００９】 第２のセグメント１５ｂには作業員が通行するための扉２１がある。すなわち 、当該セグメントのほぼ中央において、基枠１を除いてトップレール５、中間レ ール７および土留め板１３を切り欠き、切り欠き部の両側に補助柱２３を設け、 これら補助柱の間に扉２１を開閉自在に枢支する。符号２５は扉の蝶番、符号２ ７は扉の留め金である。扉を通行する者の安全を確保するため、図４に示すよう に、補助柱２３の内側にはハンドグリップ２９、基枠１の内側にはステップ３１ を設ける。[0009] The second segment 15b has a door 21 through which a worker passes. That is, the top rail 5, the intermediate rail 7, and the retaining plate 13 are cut out at substantially the center of the segment except for the base frame 1, and the auxiliary pillars 23 are provided on both sides of the cutout. The door 21 is pivotally opened and closed freely. Reference numeral 25 denotes a hinge of the door, and reference numeral 27 denotes a clasp of the door. As shown in FIG. 4, a hand grip 29 is provided inside the auxiliary pillar 23 and a step 31 is provided inside the base frame 1 to secure the safety of a person passing through the door.
【００１０】 この安全柵は、トップレール５に設けたアイピース３３にスリングを掛けてク レーンで吊り上げ、図３に示すように、工事穴３５の上に設置する。符号３７は 下水管用マンホールの設置工事における仮設ケーシングであり、基枠１の挿入部 １１はその中にはまり込み、ずれないようになる。安全柵はそこそこの重量があ るので、それ以上の固定手段は必要ない。This safety fence is hung by a crane with a sling hung on an eyepiece 33 provided on the top rail 5, and installed on a construction hole 35 as shown in FIG. Reference numeral 37 denotes a temporary casing in the installation work of the sewer manhole, and the insertion portion 11 of the base frame 1 fits therein and does not shift. Since the safety fence is reasonably heavy, no further securing measures are required.
【００１１】 従来の安全柵では、地表から土砂が工事穴の中に落ちやすいが、この安全柵で は、基枠１から土留めの板１３が立ち上がっており、これで土砂をブロックする ことができる。In the conventional safety fence, earth and sand are likely to fall into the construction hole from the ground surface. In this safety fence, the earth retaining plate 13 rises from the base frame 1, and it is possible to block the earth and sand with this. it can.
【００１２】 安全柵を輸送または保管するときは、図５のように第１のセグメント１５ａを 中心にしてこれを巻き込むように折り畳む。このため、セグメントの長さは、第 １のセグメント１５ａ、第２のセグメント１５ｂ、第３のセグメント１５ｃの順 で大きく構成されている。まず図２に鎖線で示すように、第１と第４のセグメン ト１５ａ、１５ｄの間の連結ピン１９を抜いて、第１のセグメント１５ａを内側 に折り畳む。同様にして、第２のセグメント１５ｂ、第３のセグメント１５ｃの 順で内側に折り畳む。こうして、円筒形の安全柵は図４に示すように、嵩ばらな いように平たく収納することができる。When transporting or storing the safety fence, as shown in FIG. 5, the first fence 15a is folded around the first segment 15a. For this reason, the length of the segment is configured to be larger in the order of the first segment 15a, the second segment 15b, and the third segment 15c. First, as shown by a chain line in FIG. 2, the connecting pin 19 between the first and fourth segments 15a and 15d is pulled out, and the first segment 15a is folded inward. Similarly, the second segment 15b and the third segment 15c are folded inward in this order. Thus, as shown in FIG. 4, the cylindrical safety fence can be stored flat without being bulky.
【図面の簡単な説明】[Brief description of the drawings]
【図１】 安全柵の斜視図であり、扉を少し開いて示
す。FIG. 1 is a perspective view of a safety fence, showing a door slightly opened.
【図２】 安全柵の平面図である。FIG. 2 is a plan view of a safety fence.
【図３】 図２のＡ−Ａ断面図である。FIG. 3 is a sectional view taken along line AA of FIG. 2;
【図４】 図２のＢ−Ｂ断面図であるFIG. 4 is a sectional view taken along line BB of FIG. 2;
【図５】 折り畳んだ状態の平面図である。FIG. 5 is a plan view in a folded state.
１ 基枠 ２ 支柱 １１ 挿入部 １３ 土留め板 １５ セグメント ２１ 扉 ３５ 工事穴 DESCRIPTION OF SYMBOLS 1 Base frame 2 Prop 11 Insert part 13 Earth retaining plate 15 Segment 21 Door 35 Construction hole
Claims (4)
って、上から見て３つ以上のセグメントに分割され、隣
接するセグメント同士は、１箇所で切り離し自在に連結
され、それ以外の個所は、内側に回動できるよう枢支さ
れている工事穴用筒形安全柵。1. A cylindrical safety fence to be placed on a construction hole, divided into three or more segments when viewed from above, and adjacent segments are detachably connected at one place. Other parts are cylindrical safety fences for construction holes that are pivotally supported inward.
１に記載の工事穴用筒形安全柵2. The cylindrical safety fence for a construction hole according to claim 1, wherein a door is provided in one of the segments.
めの、安全柵本体部より小さな直径の挿入部を設けた請
求項１に記載の工事穴用筒形安全柵。3. The cylindrical safety fence for a construction hole according to claim 1, wherein an insertion portion having a diameter smaller than that of the main body of the safety fence is provided at a lower portion of the safety fence to be inserted into the construction hole.
んだ請求項１に記載の工事穴用筒形安全柵。4. The tubular safety fence for a construction hole according to claim 1, wherein a lower portion of the safety fence is surrounded by a retaining plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001000276U JP3079159U (en) | 2001-01-25 | 2001-01-25 | Cylindrical safety fence for construction holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001000276U JP3079159U (en) | 2001-01-25 | 2001-01-25 | Cylindrical safety fence for construction holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3079159U true JP3079159U (en) | 2001-08-10 |
Family
ID=43212052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001000276U Expired - Lifetime JP3079159U (en) | 2001-01-25 | 2001-01-25 | Cylindrical safety fence for construction holes |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3079159U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102490298B1 (en) * | 2022-05-18 | 2023-01-18 | 김호균 | Apparatus for preventing falling into manhole |
-
2001
- 2001-01-25 JP JP2001000276U patent/JP3079159U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102490298B1 (en) * | 2022-05-18 | 2023-01-18 | 김호균 | Apparatus for preventing falling into manhole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |