JPS5838034Y2 - Manhole step body - Google Patents
Manhole step bodyInfo
- Publication number
- JPS5838034Y2 JPS5838034Y2 JP14440878U JP14440878U JPS5838034Y2 JP S5838034 Y2 JPS5838034 Y2 JP S5838034Y2 JP 14440878 U JP14440878 U JP 14440878U JP 14440878 U JP14440878 U JP 14440878U JP S5838034 Y2 JPS5838034 Y2 JP S5838034Y2
- Authority
- JP
- Japan
- Prior art keywords
- step body
- manhole
- support rod
- present
- nut
- 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設置する昇降用のステップに関
するものである。[Detailed Description of the Invention] The present invention relates to a step for lifting and lowering installed in a manhole.
マンホール本体の内壁に突設された支持棒に対して第６
図に示すように、ステップ本体ａの両端部に設けた嵌合
孔すをはめこんで固定するようにしたマンホール用ステ
ップ本体は、鋳造やダイキャスト等の成形特に中子など
を使用して嵌合孔をあけておくとか、中子を使用せず成
形後に孔あけ加工を施して嵌合孔を設けなければならな
いため、製作工数がふえるとともに、コストアップの原
因となっていた。The sixth support rod protrudes from the inner wall of the manhole body.
As shown in the figure, the manhole step body, which is fixed by fitting the fitting holes provided at both ends of the step body a, is made by molding such as casting or die casting, especially by using a core. Since it is necessary to drill a mating hole or to provide a mating hole by drilling after molding without using a core, the number of manufacturing steps increases and costs increase.
さらに、第６図のようなステップ本体をマンホール本体
に突設された支持棒に取り付は固定する場合とか、設置
後腐蝕したステップ本体を取り替える場合には、ナツト
を支持棒から完全にはずさなければ取り付は取りはすし
ができないという不便があった。Furthermore, when fixing the step body to a support rod protruding from the manhole body as shown in Figure 6, or when replacing a step body that has become corroded after installation, the nut must be completely removed from the support rod. However, there was an inconvenience in that it was not possible to make sushi with the attachment.
本考案はこのような欠点を解決するために考案したもの
で、ステップ本体の製造を容易にすると共に、ステップ
本体のステップ支持棒に対する着脱も簡単にできるよう
にすることを目的とするものである。The present invention has been devised to solve these drawbacks, and aims to facilitate the manufacture of the step body and also to easily attach and detach the step body from the step support rod. .
以下第１図〜第５図について本考案の実施例を説明する
。Embodiments of the present invention will be described below with reference to FIGS. 1 to 5.
図中１はマンホール本体、２はこのマンホール本体１の
内壁の所定位置にそれぞれ埋設したナツト、３はこのナ
ツト２に螺合して植設されるステップ支持棒、３ａはそ
の先端部に設けたねじ部、４はこのねじ部３ａの奥にわ
じこんだストッパ用ナツトである。In the figure, 1 is the manhole body, 2 is a nut buried at a predetermined position on the inner wall of the manhole body 1, 3 is a step support rod that is screwed into the nut 2, and 3a is a step support rod installed at its tip. The threaded portion 4 is a stopper nut inserted deep into the threaded portion 3a.
本考案においては、ステップ支持棒３間にかけ渡すこと
ができるステップ本体５の両端部にそれぞれステップ支
持棒３を下方より嵌入し得る嵌入溝５ａを設けると共に
、ステップ支持棒３のねじ部３ａと螺合するナツト６の
締付座５ｂを凹陥し、ステップ本体５の上面にすべり止
め用溝５Ｃを設けると共に、両側端部にすべり止め用突
起５ｄを設け、さらにステップ本体５の下面に補強用の
リブ５ｅを突設したものを鋳造または射出成形等によっ
て一体に成形する。In the present invention, fitting grooves 5a into which the step supporting rods 3 can be inserted from below are provided at both ends of the step body 5 that can be spanned between the step supporting rods 3, and the threaded portions 3a of the step supporting rods 3 and screws are provided. The tightening seat 5b of the matching nut 6 is recessed, and an anti-slip groove 5C is provided on the top surface of the step body 5, anti-slip protrusions 5d are provided on both ends, and reinforcing grooves are provided on the bottom surface of the step body 5. The protruding rib 5e is integrally molded by casting, injection molding, or the like.
上述のように形成した本考案のステップ本体５は嵌入溝
５ａをステップ支持棒３のねじ部３ａに嵌合し、座金７
を介してねじ部３ａと螺合するナツト６を締付けて固定
する。The step body 5 of the present invention formed as described above has the fitting groove 5a fitted into the threaded portion 3a of the step support rod 3, and the washer 7
Tighten and fix the nut 6 which is screwed into the threaded portion 3a through the screw.
本考案のステップ本体５は上述のように形成したから、
たとえば第２図のＢ−Ｂ線を境にして上型および下型を
形成すれば、中子等は一切使用せずに、一度の成形作業
によって完成したステップ本体を得ることができ、孔あ
け加工等は一切不要となる。Since the step body 5 of the present invention is formed as described above,
For example, if the upper and lower molds are formed along the line B-B in Figure 2, the completed step body can be obtained in one molding operation without using any cores, and the holes are drilled. No processing is required.
したがって本考案はこの種ステップ本体の製造を容易に
してコストを低減できるという利点がある。Therefore, the present invention has the advantage of facilitating the manufacture of this type of step body and reducing costs.
また本考案のステップ本体を交換する場合には、ナトツ
６をゆるめるだけでステップ支持棒３に対してステップ
本体５を容易に着脱できるから作業が非常に簡単になる
効果がある。Further, when replacing the step body of the present invention, the step body 5 can be easily attached to and detached from the step support rod 3 by simply loosening the nut 6, which has the effect of greatly simplifying the work.
第１図は本考案の実施例を示すマンホール用ステップと
平面図、第２図は本考案のステップ本体の部分正面図、
第３図はその側面図、第４図は第２図のＡ−Ａ断面図、
第５図は第１図の下面図、第６図はステップ支持棒挿通
孔を有するステップ本体の部分正面図である。
１・・・・・・マンホール本体、２・・・・・・ナツト
、３・・・・・・ステップ支持棒、４・・・・・・スト
ッパ用ナツト、５・・・・・・ステップ本体、５ａ・・
・・・・ステップ支持棒嵌入溝、５ｂ・・・・・・締付
座、５Ｃ・・・・・・すべり止め用溝、５ｄ・・・・・
・すべり止め用突起、５ｅ・・・・・・リブ、６・・・
・・・ナツト。Figure 1 is a plan view of a manhole step showing an embodiment of the present invention, Figure 2 is a partial front view of the step body of the present invention,
Fig. 3 is a side view thereof, Fig. 4 is a sectional view taken along line A-A in Fig. 2,
FIG. 5 is a bottom view of FIG. 1, and FIG. 6 is a partial front view of the step body having a step support rod insertion hole. 1... Manhole body, 2... Nut, 3... Step support rod, 4... Stopper nut, 5... Step body , 5a...
...Step support rod fitting groove, 5b...Tightening seat, 5C...Slip prevention groove, 5d...
- Anti-slip protrusion, 5e...rib, 6...
...Natsuto.
Claims (1)
らステップ支持棒間にステップ本体をかけ渡して固定す
るようにしたものにおいて、ステップ本体の両端部にそ
れぞれステップ支持棒を下方より嵌入し得る嵌入溝を設
けたものを一体に成形してなるマンホール用ステップ本
体。In a structure in which step support rods are implanted in the inner wall of the manhole body and the step body is stretched between these step support rods to be fixed, there is a fitting in which the step support rods can be inserted into both ends of the step body from below. A manhole step body made by integrally molding a grooved piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14440878U JPS5838034Y2 (en) | 1978-10-20 | 1978-10-20 | Manhole step body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14440878U JPS5838034Y2 (en) | 1978-10-20 | 1978-10-20 | Manhole step body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5562653U JPS5562653U (en) | 1980-04-28 |
| JPS5838034Y2 true JPS5838034Y2 (en) | 1983-08-27 |
Family
ID=29122992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14440878U Expired JPS5838034Y2 (en) | 1978-10-20 | 1978-10-20 | Manhole step body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5838034Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756553A (en) * | 2016-05-11 | 2016-07-13 | 成都市东方电力线路构件厂 | Foot ladder structure favorable for improving climbing safety of climber |
-
1978
- 1978-10-20 JP JP14440878U patent/JPS5838034Y2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756553A (en) * | 2016-05-11 | 2016-07-13 | 成都市东方电力线路构件厂 | Foot ladder structure favorable for improving climbing safety of climber |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5562653U (en) | 1980-04-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5838034Y2 (en) | Manhole step body | |
| JPH0244106U (en) | ||
| JPS5838033Y2 (en) | Manhole steps | |
| JPH0137210Y2 (en) | ||
| JPS60102336U (en) | stair treads | |
| JPS6439180U (en) | ||
| JPS5927473Y2 (en) | handrail | |
| JPS638159Y2 (en) | ||
| JPH025199Y2 (en) | ||
| JPS5917223Y2 (en) | cooker lid | |
| JPS6130560Y2 (en) | ||
| JPS587766Y2 (en) | Conduit box | |
| JP2594015Y2 (en) | Concrete embedding fittings | |
| JPH0416805Y2 (en) | ||
| JPS616561U (en) | washing machine pan fixing device | |
| JPS6023548Y2 (en) | Extruded aluminum bis pocket | |
| JPS6232877U (en) | ||
| JPH07117771A (en) | Saddle installing device for bicycle | |
| JPS6212887Y2 (en) | ||
| JPH0133307Y2 (en) | ||
| JPH0418952Y2 (en) | ||
| JPS5823130Y2 (en) | lighting fixture shade | |
| JPS63247445A (en) | Insert nut embedding method | |
| JPS6137129Y2 (en) | ||
| JPH01148112U (en) |