JPS61155439U - - Google Patents
Info
- Publication number
- JPS61155439U JPS61155439U JP4051985U JP4051985U JPS61155439U JP S61155439 U JPS61155439 U JP S61155439U JP 4051985 U JP4051985 U JP 4051985U JP 4051985 U JP4051985 U JP 4051985U JP S61155439 U JPS61155439 U JP S61155439U
- Authority
- JP
- Japan
- Prior art keywords
- auxiliary ladder
- support
- guide hole
- manhole
- support part
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Ladders (AREA)
Description
第１図は本考案の一実施例を示す平面図、第２
図は本考案の補助梯子取付部の一例を示す斜視図
、第３図は受部の一例を示す斜視図、第４図イは
本考案の補助梯子を倒した状態の縦断説明図、第
４図ロは補助梯子を立てた状態の縦断説明図、第
５図イ〜ハは案内孔の各種例を示す説明図、第６
図は従来の補助梯子取付部の斜視図、第７図は同
じく従来の補助梯子取付部の説明図であり、同図
イは梯子を起こした状態の縦断側面図、同図ロは
梯子を倒した状態の縦断側面図である。
１は受枠、１ａは周壁、２は補助梯子、３は支
持部、４は支軸、５は案内孔、６は横杆、７は支
持溝、８は上面。
Figure 1 is a plan view showing one embodiment of the present invention;
The figure is a perspective view showing an example of the attachment part of the auxiliary ladder of the present invention, FIG. 3 is a perspective view showing an example of the receiving part, FIG. Figure B is a vertical cross-sectional view of the auxiliary ladder in the erected state, Figures 5 A to C are explanatory views showing various examples of guide holes, and Figure 6
The figure is a perspective view of a conventional auxiliary ladder attachment part, and Figure 7 is an explanatory diagram of the conventional auxiliary ladder attachment part. FIG. 1 is a receiving frame, 1a is a peripheral wall, 2 is an auxiliary ladder, 3 is a support portion, 4 is a support shaft, 5 is a guide hole, 6 is a horizontal rod, 7 is a support groove, and 8 is an upper surface.
Claims (1)
持する支持部が突設され、その支持部に支軸を回
動自在に連通する縦長の案内孔が貫通され、支持
部の上部に補助梯子の横杆を支持する支持溝が支
持部の上面に開口するよう縦方向に形成されてな
るマンホール補助梯子取付部。 (2) 案内孔が直線上状であるか又は上部と下部
の双方またはいずれか一方が外側または内側に屈
曲されている実用新案登録請求の範囲第(1)項記
載のマンホールの補助梯子取付部。 (3) 支持溝の底が案内孔の底より受枠の外側に
形成されている実用新案登録請求の範囲第(1)項
または第(2)項記載のマンホールの補助梯子取付
部。[Scope of Claim for Utility Model Registration] (1) A support part for supporting the lower part of the auxiliary ladder is protruded inward from the peripheral wall of the receiving frame, and a vertically long guide hole through which the support shaft is rotatably communicated is passed through the support part. A manhole auxiliary ladder attachment part, wherein a support groove for supporting a horizontal rod of an auxiliary ladder is formed in the upper part of the support part in the vertical direction so as to open on the upper surface of the support part. (2) The auxiliary ladder attachment part of the manhole described in claim (1) of the utility model registration claim, in which the guide hole is straight or both or either of the upper and lower parts are bent outward or inward. . (3) The auxiliary ladder mounting portion of a manhole according to claim 1 or 2, wherein the bottom of the support groove is formed on the outside of the receiving frame from the bottom of the guide hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4051985U JPH03428Y2 (en) | 1985-03-20 | 1985-03-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4051985U JPH03428Y2 (en) | 1985-03-20 | 1985-03-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61155439U true JPS61155439U (en) | 1986-09-26 |
| JPH03428Y2 JPH03428Y2 (en) | 1991-01-09 |
Family
ID=30549479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4051985U Expired JPH03428Y2 (en) | 1985-03-20 | 1985-03-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03428Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6376046U (en) * | 1986-11-06 | 1988-05-20 |
-
1985
- 1985-03-20 JP JP4051985U patent/JPH03428Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6376046U (en) * | 1986-11-06 | 1988-05-20 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03428Y2 (en) | 1991-01-09 |
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