JPH0457536U - - Google Patents
Info
- Publication number
- JPH0457536U JPH0457536U JP9758290U JP9758290U JPH0457536U JP H0457536 U JPH0457536 U JP H0457536U JP 9758290 U JP9758290 U JP 9758290U JP 9758290 U JP9758290 U JP 9758290U JP H0457536 U JPH0457536 U JP H0457536U
- Authority
- JP
- Japan
- Prior art keywords
- frames
- folding screen
- manhole
- screen according
- manhole folding
- 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
Description
第１図は本考案のマンホール用屏風の一実施例
を示す一部切欠いた斜視図、第２図Ａはその繋ぎ
フレームの構成を示す説明図、第２図Ｂは繋ぎフ
レームの折り畳み作用説明図、第３図は全体の折
り畳み状態を示す説明図である。
１，２……円形フレーム、３……繋ぎフレーム
、３ａ……ヒンジ部、３ｂ……ロツク環、４……
カバー、４ａ……止着片、４ｂ……出入口、４ｃ
……蓋。
Fig. 1 is a partially cutaway perspective view showing an embodiment of the manhole folding screen of the present invention, Fig. 2A is an explanatory view showing the structure of the connecting frame, and Fig. 2B is an explanatory view of the folding action of the connecting frame. , FIG. 3 is an explanatory view showing the entire folded state. 1, 2... Circular frame, 3... Connecting frame, 3a... Hinge part, 3b... Lock ring, 4...
Cover, 4a...Fixing piece, 4b...Entrance/exit, 4c
……lid.
Claims (1)
に折り畳み自在に設けられた複数の繋ぎフレーム
と、上記上下の円形フレーム間に筒状に張装され
たシートから構成されていることを特徴とするマ
ンホール用屏風。 ２ 上部の円形フレームが傾斜するように構成さ
れていることを特徴とする請求項１に記載のマン
ホール用屏風。 ３ 上記シートに蓋付き出入り口を設けたことを
特徴とする請求項１または２に記載のマンホール
用屏風。[Claims for Utility Model Registration] 1. Consisting of upper and lower circular frames, a plurality of connecting frames that are foldably provided between these frames, and a sheet stretched in a cylindrical shape between the upper and lower circular frames. A manhole folding screen that is characterized by: 2. The manhole folding screen according to claim 1, wherein the upper circular frame is configured to be inclined. 3. The manhole folding screen according to claim 1 or 2, wherein the sheet is provided with an entrance/exit with a lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990097582U JP2538570Y2 (en) | 1990-09-19 | 1990-09-19 | Manhole folding screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990097582U JP2538570Y2 (en) | 1990-09-19 | 1990-09-19 | Manhole folding screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0457536U true JPH0457536U (en) | 1992-05-18 |
| JP2538570Y2 JP2538570Y2 (en) | 1997-06-18 |
Family
ID=31838072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990097582U Expired - Lifetime JP2538570Y2 (en) | 1990-09-19 | 1990-09-19 | Manhole folding screen |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2538570Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017218726A (en) * | 2016-06-03 | 2017-12-14 | 前田建設工業株式会社 | Manhole opening cover means |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3046515U (en) * | 1997-07-07 | 1998-03-10 | 富士通エフ・アイ・ピー株式会社 | Seismic system rack |
-
1990
- 1990-09-19 JP JP1990097582U patent/JP2538570Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3046515U (en) * | 1997-07-07 | 1998-03-10 | 富士通エフ・アイ・ピー株式会社 | Seismic system rack |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017218726A (en) * | 2016-06-03 | 2017-12-14 | 前田建設工業株式会社 | Manhole opening cover means |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2538570Y2 (en) | 1997-06-18 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |