JPS6233779Y2 - - Google Patents
Info
- Publication number
- JPS6233779Y2 JPS6233779Y2 JP1983193052U JP19305283U JPS6233779Y2 JP S6233779 Y2 JPS6233779 Y2 JP S6233779Y2 JP 1983193052 U JP1983193052 U JP 1983193052U JP 19305283 U JP19305283 U JP 19305283U JP S6233779 Y2 JPS6233779 Y2 JP S6233779Y2
- Authority
- JP
- Japan
- Prior art keywords
- fall prevention
- prevention frame
- frame
- holes
- manhole
- 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
Links
- 230000002265 prevention Effects 0.000 claims description 23
- 230000000630 rising effect Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は地下構造物、例えば下水道用マンホ
ールや防火貯水槽への昇降口に設けられるマンホ
ール蓋受枠に関するものである。[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a manhole cover frame provided at an entrance to an underground structure, such as a sewer manhole or a fire protection water storage tank.
最近、地下構造物、特に危険で深い場所の下水
道のマンホールに転落防止枠を設けたものが市販
されるようになつたが、構造的に使い勝手が悪い
ことと、集中豪雨時にこれが溢水により跳ね上げ
られて、衝突事故の原因を作る虞がでて来てい
る。
Recently, underground structures, especially those installed with fall prevention frames for manholes in dangerous and deep sewers, have become commercially available. There is a danger that this could cause a collision.
そこで、この考案は、構造簡単で使い勝手が良
く、しかも衝突事故の原因になる虞のないものを
提供しようとするものである。 Therefore, this invention aims to provide a device that has a simple structure, is easy to use, and is not likely to cause a collision.
即ち、この考案はマンホール蓋受枠の口縁の一
側に手掛け兼用のステツプと枢着部を設け、且つ
反対側口縁に受部を設けると共に、前記枢着部に
立上り梯子兼用の転落防止枠を起伏自在に設け、
且つこの転落防止枠の両脚を挿入する孔を設ける
と共に、前記受部側には転落防止枠の止ピンを各
設けたものである。
That is, this invention provides a step and a pivoting part that can be used as a handhold on one side of the mouth edge of the manhole cover receiving frame, a receiving part on the opposite mouth edge, and a fall prevention frame that can also be used as a rising ladder in the pivoting part. are set up and down freely,
In addition, holes are provided for inserting both legs of the fall prevention frame, and retaining pins of the fall prevention frame are provided on the receiving portion side.
以下、この考案の実施例を図面に基づき説明す
れば次の通りである。
Hereinafter, embodiments of this invention will be described based on the drawings.
第１図はこの考案の実施例の平面図、第２図は
その一部を切除した側面図で、１は口縁２の一側
に設けた手掛け兼用のステツプ、３，３はその反
対側口縁に設けた受部、４は前記ステツプ１の両
側に設けた枢着部５，５に起伏自在に設けた井桁
状の梯子兼用の転落防止枠である。 Figure 1 is a plan view of an embodiment of this invention, and Figure 2 is a side view with a portion thereof cut away, where 1 is a step provided on one side of the mouth rim 2 and serves as a handle, and 3 and 3 are on the opposite side. The receiving part 4 provided on the edge of the mouth is a fall prevention frame which can be raised and lowered freely on the pivot parts 5, 5 provided on both sides of the step 1, and is also used as a ladder.
この転落防止枠４の両脚４ａ，４ａには第２図
に示すように長孔６が設けてあつて、これを貫通
するボルト７とナツト８によつて、ステツプ１の
両側に設けた枢着部５，５に枢着されており、ま
た枢着部５，５には転落防止枠４の両脚４ａ，４
ａが入る孔９，９が設けられている。 Both legs 4a, 4a of this fall prevention frame 4 are provided with long holes 6 as shown in FIG. The legs 4a, 4 of the fall prevention frame 4 are pivoted to the pivot parts 5, 5.
Holes 9, 9 into which a is inserted are provided.
また前記受部３，３には前記転落防止枠４の屈
曲部４ｂ，４ｂと嵌合する孔１０，１０と、着脱
自在の転落防止枠４の止ピン１１，１１が設けら
れている。 Further, the receiving parts 3, 3 are provided with holes 10, 10 that fit into the bent parts 4b, 4b of the fall prevention frame 4, and removable stop pins 11, 11 of the fall prevention frame 4.
以上のように構成されているので、集中豪雨時
の溢水によつてマンホール蓋が吹き上げられて開
披しても転落防止枠４は止ピン１１，１１により
固定されているのでマンホールへの転落を防止す
ることができる。 With the structure described above, even if the manhole cover is blown up and opened due to overflow during a localized heavy rain, the fall prevention frame 4 is fixed by the stop pins 11, 11, so falling into the manhole will be prevented. It can be prevented.
また本案品を防火貯水槽に使用する場合、この
転落防止枠４は本来の目的だけではなく、仕切枠
の働きをなし、２本以上のホースの出し入れを楽
にすると共に、注水時に注水ホースがマンホール
から抜け出すことを防止させる機能を持つ特徴が
ある。 In addition, when this product is used in a fire prevention water storage tank, this fall prevention frame 4 not only serves its original purpose, but also functions as a partition frame, making it easier to put in and take out two or more hoses, and also allow the water injection hose to pass through the manhole when pouring water. It has a feature that prevents it from slipping out.
また、前記止ピン１１，１１を抜き、転落防止
枠４を引き起して両脚４ａ，４ａを孔９，９に落
すと、転落防止枠４は孔９，９に植設され、これ
がマンホール昇降時の手掛になり、マンホールの
昇降を助ける実益がある。 Further, when the stop pins 11, 11 are removed, the fall prevention frame 4 is pulled up, and both legs 4a, 4a are dropped into the holes 9, 9, the fall prevention frame 4 is planted in the holes 9, 9, and this is used to raise and lower the manhole. It serves as a clue in time and has the practical benefit of helping the manhole go up and down.
そして更に、この考案では転落防止枠４を孔
９，９に植設した場合、ガタ付きのない手掛け兼
用のステツプ１が転落防止枠４の下に位置するた
め梯子状となつた転落防止枠４の第１ステツプの
役目を果し昇降を楽にする効果がある。 Furthermore, in this invention, when the fall prevention frame 4 is installed in the holes 9, 9, the step 1, which also serves as a hand grip and does not have play, is located under the fall prevention frame 4, so that the fall prevention frame 4 becomes ladder-like. It serves as the first step in the process and has the effect of making going up and down easier.
なおこの実施例では転落防止枠４をボルト７と
ナツト８で枢着部５，５に取付けてあるので、浅
いマンホールに使用する場合などにおいて、転落
防止枠４が不要の場合は取り外すことができ、そ
の場合は手掛け兼用のステツプ付受枠となり一つ
の型で場所用途に応じて使い分けることが出来る
ので、合理的で経済性に優れたマンホール蓋受枠
である。 In this embodiment, the fall prevention frame 4 is attached to the pivot parts 5, 5 with bolts 7 and nuts 8, so it can be removed if the fall prevention frame 4 is not needed, such as when used in a shallow manhole. In that case, the manhole cover frame is a rational and economical manhole cover frame because it becomes a frame with a step that can also be used as a handle, and can be used depending on the location and purpose with one type.
第１図はこの考案の実施例の平面図、第２図は
一部を切除した側面図である。
１……手掛け兼用ステツプ、２……口縁、３…
…受部、４……転落防止枠、５……枢着部、６…
…長孔、７……ボルト、８……ナツト、９及び１
０……孔、１１……止ピン。
FIG. 1 is a plan view of an embodiment of this invention, and FIG. 2 is a partially cut away side view. 1... Step that also serves as a handle, 2... Mouth rim, 3...
...Receiving part, 4... Fall prevention frame, 5... Pivot part, 6...
...Long hole, 7...Bolt, 8...Nut, 9 and 1
0...hole, 11...stop pin.
Claims (1)
部５，５を設け、且つ反対側口縁に受部３を設け
ると共に、前記枢着部５，５に立上り梯子兼用の
転落防止枠４を起伏自在に設け、且つこの転落防
止枠４の両脚４ａ，４ａを挿入する孔９，９を設
けると共に、前記受部３，３には転落防止枠４の
止ピン１１，１１を各設けたことを特徴とするマ
ンホール蓋受枠。 A step 1 and pivot parts 5, 5 which can be used as a handle are provided on one side of the lip 2, and a receiving part 3 is provided on the opposite lip, and a fall prevention frame which can also be used as a rising ladder is provided. 4 to be freely raised and lowered, and holes 9, 9 are provided for inserting the legs 4a, 4a of this fall prevention frame 4, and retaining pins 11, 11 of the fall prevention frame 4 are provided in the receiving parts 3, 3, respectively. A manhole cover frame characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19305283U JPS60104451U (en) | 1983-12-16 | 1983-12-16 | Manhole cover frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19305283U JPS60104451U (en) | 1983-12-16 | 1983-12-16 | Manhole cover frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60104451U JPS60104451U (en) | 1985-07-16 |
| JPS6233779Y2 true JPS6233779Y2 (en) | 1987-08-29 |
Family
ID=30415305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19305283U Granted JPS60104451U (en) | 1983-12-16 | 1983-12-16 | Manhole cover frame |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60104451U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0417633Y2 (en) * | 1986-04-07 | 1992-04-20 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6033162Y2 (en) * | 1982-05-31 | 1985-10-03 | 長島鋳物株式会社 | Manhole with auxiliary ladder |
-
1983
- 1983-12-16 JP JP19305283U patent/JPS60104451U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60104451U (en) | 1985-07-16 |
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