JPS6019153Y2 - Auxiliary ladder for manhole - Google Patents
Auxiliary ladder for manholeInfo
- Publication number
- JPS6019153Y2 JPS6019153Y2 JP8262582U JP8262582U JPS6019153Y2 JP S6019153 Y2 JPS6019153 Y2 JP S6019153Y2 JP 8262582 U JP8262582 U JP 8262582U JP 8262582 U JP8262582 U JP 8262582U JP S6019153 Y2 JPS6019153 Y2 JP S6019153Y2
- Authority
- JP
- Japan
- Prior art keywords
- ladder
- elastic band
- manhole
- lid
- turnbuckle
- 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
Landscapes
- Ladders (AREA)
Description
【考案の詳細な説明】
本考案は、マンホール内に出入する場合に利用する補助
梯子に関するものである。[Detailed Description of the Invention] The present invention relates to an auxiliary ladder used when entering and exiting a manhole.
本考案の目的はマンホールの内周面に着脱可能に装着さ
れ、簡便に用いられる補助梯子を提供することにある。An object of the present invention is to provide an auxiliary ladder that is detachably attached to the inner peripheral surface of a manhole and is easily used.
しかして本考案は蓋枠１の内周面に形成した蓋受突部２
に載架する掛止金具３が所要量隔置取付けられている弾
性バンド４と、該弾性バンド４を拡開、収縮させるため
のターンバックル等の伸縮調節部材５と、弾性バンド４
に取付ける梯子６とから戒り、梯子６の左右両側杆６ａ
、６ｂは弾性バンド４にピン７で枢着したことを特徴と
するマンホール用補助梯子である。Therefore, the present invention has a lid receiving protrusion 2 formed on the inner peripheral surface of the lid frame 1.
An elastic band 4 on which the hanging metal fittings 3 mounted on the elastic band 4 are attached at required intervals, an elastic adjustment member 5 such as a turnbuckle for expanding and contracting the elastic band 4, and an elastic band 4.
From the ladder 6 installed on the left and right side bars 6a of the ladder 6
, 6b is an auxiliary manhole ladder characterized by being pivotally connected to an elastic band 4 with a pin 7.
尚図示実施例の蓋受突部２は全周にわたり一定間隔を存
して複数突設したものを示したが全周に連続して段状に
設けられるＪＩＳ規格のものにも使用することができる
。Although the illustrated embodiment shows a case in which a plurality of lid receiving protrusions 2 are protruded at regular intervals over the entire circumference, it can also be used as a JIS standard type that is provided continuously in steps around the entire circumference. can.
又、梯子６の側杆６ａ、６ｂ下端にコ形の軸受片８ａ、
８ｂを突設し、８ａに弾性バンド４の一端を枢着し、８
ｂは弾性バンド４に接続したターンバックル５に枢着し
たものである。Further, U-shaped bearing pieces 8a are provided at the lower ends of the side bars 6a and 6b of the ladder 6.
8b is provided protrudingly, and one end of the elastic band 4 is pivotally connected to 8a.
b is pivotally connected to a turnbuckle 5 connected to the elastic band 4.
更に掛止金具３′は梯子６に一体に形成され、梯子６を
起立したとき蓋受突部２に載架して梯子６を安定させる
。Further, the latch 3' is integrally formed with the ladder 6, and rests on the lid receiving protrusion 2 to stabilize the ladder 6 when the ladder 6 is erected.
本考案によればマンホール蓋枠の内周に確実かつ容易に
取付けられる。According to the present invention, it can be reliably and easily attached to the inner periphery of the manhole cover frame.
即ちターンバックル５を緊張させることにより弾性バン
ド４は広がり、掛止金具３は蓋受突部２に係止し、第４
図ａに示すように梯子６はピン７を支点に起立し、側杆
６ａｔ６ｂは同図矢印Ｘ方向に押され掛止金具３′は突
部２に接し梯子は起立した状態で安定するのである。That is, by tensioning the turnbuckle 5, the elastic band 4 expands, the latch 3 locks on the lid holder protrusion 2, and the fourth
As shown in Figure A, the ladder 6 stands up with the pin 7 as a fulcrum, the side rods 6at6b are pushed in the direction of the arrow X in the figure, the latch 3' touches the protrusion 2, and the ladder is stabilized in the upright state. .
従って特に梯子を止めて置く手段を必要としない特徴が
ある二叉同図すのようにターンバックル５をゆるめ、梯
子６を倒せば取外し操作は簡単で携帯に便利である。Therefore, it is easy to remove the ladder by loosening the turnbuckle 5 and knocking down the ladder 6 as shown in the figure, which is characterized in that it does not require any means for securing the ladder.
それに加え、ＪＩＳ型の枠にも利用でき利用範囲は大き
い。In addition, it can be used for JIS type frames, and has a wide range of uses.
図面は本考案に係るマンホール補助梯子の一実施例を示
したもので、第１図は斜視図、第２図は縦断側面図、第
３図は平面図、第４図は梯子の倒立状態を示す側面図で
ある。
１・・・・・・蓋枠、２・・・・・・蓋受突部、３・・
・・・・掛止金具、４・・・・・・弾性バンド、５・・
・・・・伸縮調節部材 ６・・・・・・梯子、６ａ、６
ｂ・・・・・・側杆、７・・・・・ピン。The drawings show one embodiment of the manhole auxiliary ladder according to the present invention, in which Fig. 1 is a perspective view, Fig. 2 is a longitudinal side view, Fig. 3 is a plan view, and Fig. 4 shows the ladder in an inverted state. FIG. 1... Lid frame, 2... Lid holder protrusion, 3...
...Latching bracket, 4...Elastic band, 5...
...Extensible adjustment member 6...Ladder, 6a, 6
b...Side rod, 7...Pin.
Claims (1)
具３が所要量隔置取付けられている弾性バンド４と、該
弾性バンド４を拡開、収縮させるためのターンバックル
等の伸縮調節部材５と、弾性バンド４に取付ける梯子６
の左右両側杆６ａ。 ６ｂは弾性バンド４にピン７で枢着したことを特徴とす
るマンホール用補助梯子。[Scope of Claim for Utility Model Registration] An elastic band 4 on which latches 3 are mounted at required distances from each other and mounted on a lid receiving protrusion 2 formed on the inner circumferential surface of a lid frame 1; A telescopic adjustment member 5 such as a turnbuckle for expansion and contraction, and a ladder 6 attached to the elastic band 4
The left and right side rods 6a. 6b is an auxiliary manhole ladder characterized by being pivotally connected to an elastic band 4 with a pin 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8262582U JPS6019153Y2 (en) | 1982-06-03 | 1982-06-03 | Auxiliary ladder for manhole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8262582U JPS6019153Y2 (en) | 1982-06-03 | 1982-06-03 | Auxiliary ladder for manhole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58185637U JPS58185637U (en) | 1983-12-09 |
| JPS6019153Y2 true JPS6019153Y2 (en) | 1985-06-10 |
Family
ID=30091682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8262582U Expired JPS6019153Y2 (en) | 1982-06-03 | 1982-06-03 | Auxiliary ladder for manhole |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6019153Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4516672B2 (en) * | 2000-06-19 | 2010-08-04 | 日之出水道機器株式会社 | Manhole ladder and fall prevention device |
-
1982
- 1982-06-03 JP JP8262582U patent/JPS6019153Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58185637U (en) | 1983-12-09 |
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