JPH0342834U - - Google Patents
Info
- Publication number
- JPH0342834U JPH0342834U JP10358789U JP10358789U JPH0342834U JP H0342834 U JPH0342834 U JP H0342834U JP 10358789 U JP10358789 U JP 10358789U JP 10358789 U JP10358789 U JP 10358789U JP H0342834 U JPH0342834 U JP H0342834U
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- flange
- manhole
- vertical rods
- supported
- 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
- 230000001681 protective effect Effects 0.000 claims 1
Landscapes
- Ladders (AREA)
Description
第１図は本考案に係る補助梯子を備えた枠体の
斜視図、第２図は枠体と補助梯子との取付部分の
拡大図である。
Ａ……マンホール枠体（枠体）、ａ……補助梯
子、１……開口部、２……筒壁、３……フランジ
、８ａ，８ｂ……軸部、１０ａ，１０ｂ……縦杆
、１１……横杆、１２……フツク部。
FIG. 1 is a perspective view of a frame body equipped with an auxiliary ladder according to the present invention, and FIG. 2 is an enlarged view of the attachment portion between the frame body and the auxiliary ladder. A... Manhole frame (frame body), a... Auxiliary ladder, 1... Opening, 2... Cylindrical wall, 3... Flange, 8a, 8b... Shaft, 10a, 10b... Vertical rod, 11...Horizontal rod, 12...Hook section.
Claims (1)
軸部と、 この軸部と対向するマンホール枠体のフランジ
との間に渡設される長さを有し、かつ対向して設
けられた一対の縦杆と、 前記縦杆間に設けられた複数の横杆とからなり
、 前記縦杆は一端部にフツク部を有し、 前記フツク部を前記軸部に支持させるとともに
、そのフツク部の背面を前記フランジに、前記縦
杆をマンホール枠体の筒壁にそれぞれ当接させる
ことにより起立させて補助梯子とし、前記フツク
部を前記軸部に支持させるとともに、前記縦杆の
他端を前記フランジに載置させて防護枠とするこ
とを特徴とするマンホール用補助梯子。[Scope of Claim for Utility Model Registration] Having a length extending between a shaft provided at one end of the opening of the manhole frame and a flange of the manhole frame facing this shaft, and a pair of vertical rods provided facing each other, and a plurality of horizontal rods provided between the vertical rods, each of the vertical rods having a hook portion at one end, and the hook portion being attached to the shaft portion. The hook part is supported by the flange, and the vertical rod is brought into contact with the cylindrical wall of the manhole frame to make it stand up as an auxiliary ladder, and the hook part is supported by the shaft part, An auxiliary ladder for a manhole, characterized in that the other end of the vertical rod is placed on the flange to serve as a protective frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989103587U JPH086113Y2 (en) | 1989-09-04 | 1989-09-04 | Auxiliary ladder for manhole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989103587U JPH086113Y2 (en) | 1989-09-04 | 1989-09-04 | Auxiliary ladder for manhole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0342834U true JPH0342834U (en) | 1991-04-23 |
| JPH086113Y2 JPH086113Y2 (en) | 1996-02-21 |
Family
ID=31652415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989103587U Expired - Lifetime JPH086113Y2 (en) | 1989-09-04 | 1989-09-04 | Auxiliary ladder for manhole |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH086113Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57205631A (en) * | 1981-06-11 | 1982-12-16 | Hinode Suido Kiki Kk | Cover for underground structure with falling preventive mechanism |
| JPS58185636U (en) * | 1982-05-31 | 1983-12-09 | 長島鋳物株式会社 | Manhole with auxiliary ladder |
-
1989
- 1989-09-04 JP JP1989103587U patent/JPH086113Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57205631A (en) * | 1981-06-11 | 1982-12-16 | Hinode Suido Kiki Kk | Cover for underground structure with falling preventive mechanism |
| JPS58185636U (en) * | 1982-05-31 | 1983-12-09 | 長島鋳物株式会社 | Manhole with auxiliary ladder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH086113Y2 (en) | 1996-02-21 |