JPS625087Y2 - - Google Patents
Info
- Publication number
- JPS625087Y2 JPS625087Y2 JP16103483U JP16103483U JPS625087Y2 JP S625087 Y2 JPS625087 Y2 JP S625087Y2 JP 16103483 U JP16103483 U JP 16103483U JP 16103483 U JP16103483 U JP 16103483U JP S625087 Y2 JPS625087 Y2 JP S625087Y2
- Authority
- JP
- Japan
- Prior art keywords
- mounting
- ladder
- receiver
- inner edge
- attached
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000003197 gene knockdown Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
Landscapes
- Ladders (AREA)
Description
【考案の詳細な説明】
本考案はマンホール用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 for manholes.
本考案の目的はマンホール内への出入りを助け
る梯子であつて携帯に便利な形状、大きさを有し
かつその使用中にはずれるおそれがなくまた口内
への人等の落下を防止できるマンホール用補助梯
子を提供することにある。 The purpose of this invention is to provide a ladder for assisting in entering and exiting manholes, which has a shape and size that is convenient for carrying, does not have the risk of falling off during use, and is an aid for manholes that can prevent people from falling into the mouth. The purpose is to provide a ladder.
即ち本考案は蓋体１を受け支える受体２の口部
内縁３に一対の取付管４，４′を受体２の軸方向
と並行に取付け、一対の手摺５，５′を備えかつ
口部内縁３を略塞げる大きさを持つ梯子７の一端
に、前記取付管４，４′と嵌合する取付脚８，
８′を、その一方８は屈伸自在に軸支９して取付
けるとともに、この取付脚８に前記一方の取付管
４に設けた係合溝１０に挿通する抜止め突起１１
を設けたことを特徴とするマンホール用補助梯子
である。 That is, in the present invention, a pair of mounting pipes 4, 4' are attached to the inner edge 3 of the opening of the receiver 2 that supports the lid 1 in parallel with the axial direction of the receiver 2, and a pair of handrails 5, 5' are provided. A mounting leg 8 that fits into the mounting pipes 4, 4' is attached to one end of the ladder 7 having a size that can substantially close the inner edge 3 of the ladder.
8', one of which 8 is pivotably supported 9 in a bendable and extensible manner, and the mounting leg 8 is provided with a retaining protrusion 11 that is inserted into the engagement groove 10 provided in the one mounting pipe 4.
This is an auxiliary ladder for manholes, which is characterized by being provided with.
図示の実施例はマンホール鉄蓋等の蓋体１を受
け支える受枠としての受体２に本考案を実施した
もので、この受体２は口部内縁３に蓋体１の下端
を受け止め得る鍔１２を有し、その鍔１２の受持
駒１２ａに一対の取付管４，４′を軸方向、つま
り環状受体２の中心軸を通る方向、と並行に取付
けてある。 In the illustrated embodiment, the present invention is applied to a receiver 2 that serves as a receiving frame for supporting a cover 1 such as a manhole iron cover. 12, and a pair of attachment pipes 4, 4' are attached to the support piece 12a of the collar 12 in the axial direction, that is, parallel to the direction passing through the center axis of the annular receiver 2.
一方の取付管４は梯子７の一方の取付脚８を嵌
合し回動操作にするため円筒状とするが、他方の
取付管４′及び脚８′は唯嵌合させるだけであるか
ら角筒状でも良く、角筒状とすればより安定す
る。６は梯子７の手摺５，５′間に設けた横杆、
１３，１３′は梯子７とその取付脚８，８′との間
に設けたストツパーで取付管４，４′に接する。
而して一方の取付脚８はその取付管４及び他方の
取付脚８′をより長寸とし、嵌合時取付管４から
突出する下端に抜け止め突起１１を側方へ突設し
係合溝１０との係合後取付管４の嵌合溝１０から
下方へ脱するとともに、引き上げても他方の脚
８′が取付管４′から外れるまで取付管４の下端に
当らず従つて回動することができる（第１図鎖
線）。尚係合溝１０は取付管８，８′を各取付管
４，４′に嵌合した状態で抜け止め突起１１の向
きとずれるように設定される（第４図）。符号１
４，１４′は梯子７の先端部に取付けた側面逆Ｌ
字形の当て駒で口部内縁３に倒した時その口縁３
及び受持駒１２ａ上に当接する。 One of the mounting pipes 4 is cylindrical in order to fit one of the mounting legs 8 of the ladder 7 for rotational operation, but the other mounting pipe 4' and leg 8' are square because they are only fitted together. It may be cylindrical, but a rectangular cylindrical shape will be more stable. 6 is a horizontal beam installed between handrails 5 and 5' of ladder 7;
13, 13' contact the mounting pipes 4, 4' at stoppers provided between the ladder 7 and its mounting legs 8, 8'.
Therefore, one mounting leg 8 has a longer length than the mounting tube 4 and the other mounting leg 8', and a retaining protrusion 11 is provided laterally on the lower end protruding from the mounting tube 4 when engaged. After engaging with the groove 10, the mounting tube 4 comes out of the fitting groove 10 downward, and even if it is pulled up, it does not hit the lower end of the mounting tube 4 until the other leg 8' comes off from the mounting tube 4', so it rotates. It can be done (dashed line in Figure 1). The engagement groove 10 is set so as to be deviated from the direction of the retaining protrusion 11 when the attachment tubes 8, 8' are fitted into the respective attachment tubes 4, 4' (FIG. 4). code 1
4, 14' is a side inverted L attached to the tip of ladder 7.
When you knock down the inner edge of the mouth 3 with a glyph shaped piece, the edge of the mouth 3
and abuts on the holding piece 12a.
上述の構成に於いて、補助梯子を使用するに
は、まず一方の取付脚８を取付管４に抜け止め突
起１１を係合溝１０に合わせて挿入し、次いで他
方の取付脚８′も同様にしてストツパー１３，１
３′を取付管４，４′の上端に当接させると軸支９
部分も取付管４内に収まるので梯子７を受体２上
に立設することができ（第１図）、マンホール口
内への出入りが容易になる。また取付脚８，８′
を少し引上げると軸支９部分が取付筒４の上に
出、かつ他方の取付脚８′が取付筒４′より外れる
ので梯子７を倒せば先端の当て駒１４，１４′を
口部内縁３に係合させて落下防止具として使用す
ることができる。 In the above configuration, to use the auxiliary ladder, first insert one of the mounting legs 8 into the mounting tube 4 by aligning the retaining protrusion 11 with the engagement groove 10, and then insert the other mounting leg 8' in the same manner. Stopper 13,1
When 3' is brought into contact with the upper end of the mounting pipes 4 and 4', the shaft support 9
Since the portion also fits within the mounting pipe 4, the ladder 7 can be erected on the receiver 2 (FIG. 1), making it easy to enter and exit the manhole opening. Also, mounting legs 8, 8'
When the ladder 7 is pulled up slightly, the shaft support 9 will come out above the mounting tube 4, and the other mounting leg 8' will come off the mounting tube 4'. 3 and can be used as a fall prevention tool.
本考案は以下のような内容を有しており、一対
の取付脚８，８′により梯子７を受体２上に立設
することができるとともに、受体２へは軸支９に
より屈伸自在に取付けられかつ口部内縁３を略塞
げる大きさを有するから落下防止具としても使用
でき、使用中抜け止め突起１０により引抜きがで
きないので安全であり、構造が簡潔で小型軽量の
ため携帯の邪魔にならず実用性が高い効果があ
る。 The present invention has the following contents, in which the ladder 7 can be erected on the receiver 2 by a pair of mounting legs 8, 8', and can be bent and extended to the receiver 2 by the pivot support 9. It can be attached to the device and has a size that can almost close the inner edge 3 of the mouth, so it can also be used as a fall prevention device.It is safe because it cannot be pulled out due to the retaining protrusion 10 during use, and the structure is simple, small and lightweight, making it portable. It does not get in the way and has a highly practical effect.
図は本考案に係るマンホール用補助梯子の一実
施例を示すもので第１図は断面図、第２図は上面
図、第３図は斜視図、第４図は要部平面図であ
る。
１……蓋体、２……受体、３……口部内縁、
４，４′……取付管、５，５′……手摺、７……梯
子、８，８′……取付脚、９……軸、１０……係
合溝、１１……抜け止め突起。
The drawings show an embodiment of the manhole auxiliary ladder according to the present invention; FIG. 1 is a sectional view, FIG. 2 is a top view, FIG. 3 is a perspective view, and FIG. 4 is a plan view of the main part. 1...Lid body, 2...Receptor, 3...Inner edge of mouth,
4, 4'... Mounting pipe, 5, 5'... Handrail, 7... Ladder, 8, 8'... Mounting leg, 9... Shaft, 10... Engaging groove, 11... Retaining protrusion.
Claims (1)
の取付管４，４′を受体２の軸方向と並行に取付
け、一対の手摺５，５′を備えかつ口部内縁３を
略塞げる大きさを持つ梯子７の一端に、前記取付
管４，４′と嵌合する取付脚８，８′を、その一方
８は屈伸自在に軸支９して取付けるとともに、こ
の取付脚８に前記一方の取付管４に設けた係合溝
１０に挿通する抜止め突起１１を設けたことを特
徴とするマンホール用補助梯子。 A pair of mounting pipes 4 and 4' are attached to the inner edge 3 of the opening of the receiver 2 that supports the lid 1 in parallel with the axial direction of the receiver 2, and a pair of handrails 5 and 5' are provided, and the inner edge 3 of the opening Mounting legs 8, 8' that fit with the mounting pipes 4, 4' are attached to one end of the ladder 7, which has a size that can be almost closed, and one of the legs 8 is pivotably supported 9 in a bendable and extensible manner. 8 is provided with a retaining protrusion 11 that is inserted into an engagement groove 10 provided in one of the mounting pipes 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16103483U JPS6070656U (en) | 1983-10-18 | 1983-10-18 | Auxiliary ladder for manhole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16103483U JPS6070656U (en) | 1983-10-18 | 1983-10-18 | Auxiliary ladder for manhole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6070656U JPS6070656U (en) | 1985-05-18 |
| JPS625087Y2 true JPS625087Y2 (en) | 1987-02-05 |
Family
ID=30354022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16103483U Granted JPS6070656U (en) | 1983-10-18 | 1983-10-18 | Auxiliary ladder for manhole |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6070656U (en) |
-
1983
- 1983-10-18 JP JP16103483U patent/JPS6070656U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6070656U (en) | 1985-05-18 |
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