JPH0113760Y2 - - Google Patents
Info
- Publication number
- JPH0113760Y2 JPH0113760Y2 JP1982060939U JP6093982U JPH0113760Y2 JP H0113760 Y2 JPH0113760 Y2 JP H0113760Y2 JP 1982060939 U JP1982060939 U JP 1982060939U JP 6093982 U JP6093982 U JP 6093982U JP H0113760 Y2 JPH0113760 Y2 JP H0113760Y2
- Authority
- JP
- Japan
- Prior art keywords
- leg
- footrest
- manhole
- foothold
- present
- 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
- 238000009434 installation Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Description
【考案の詳細な説明】
本考案はマンホール等のコンクリート壁に埋設
して使用される足掛具に関するものである。[Detailed Description of the Invention] The present invention relates to a footrest that is used by being embedded in a concrete wall such as a manhole.
従来、マンホール等に取付けられる昇降用の足
掛具は、第１図、第２図に示す如く略コの字状の
ものが一搬である。この従来の足掛具Ａは、鉄筋
１に合成樹脂２を被覆し、マンホール側塊（図示
せず）に埋設される２本の脚部３，３の先端に突
起４，４を設けて形成されている。なお、図にお
いて、５は滑り止め用の突出した模様である。 BACKGROUND ART Conventionally, a footrest for lifting and lowering that is attached to a manhole or the like is generally U-shaped as shown in FIGS. 1 and 2. This conventional footrest A is formed by coating a reinforcing bar 1 with a synthetic resin 2 and providing protrusions 4, 4 at the tips of two legs 3, 3 which are buried in a manhole side block (not shown). has been done. In addition, in the figure, 5 is a protruding pattern for anti-slip.
この足掛具Ａは、工場施工若しくは現場施工に
てマンホール側塊に取付けられるが、この際、マ
ンホール側塊に２個の穴を明け、該穴に脚部３，
３を突起４，４と共に挿入し、その後モルタル等
で穴埋めを行なつて取付けている。しかし、この
取付作業は面倒なものであり、特に現場施行にお
いては、狭いマンホール内で行なうので、作業性
が悪いうえ、危険も伴なうという問題点があつ
た。 This footrest A is attached to the manhole side block by factory construction or on-site construction, but at this time, two holes are drilled in the manhole side block, and the legs 3,
3 is inserted together with the protrusions 4, 4, and then the holes are filled with mortar or the like for installation. However, this installation work is troublesome, and especially in on-site installations, since it is carried out inside a narrow manhole, there are problems in that work efficiency is poor and it is also dangerous.
本考案は上記した問題点に鑑みてなされたもの
であり、取付けの際の作業性の向上と、危険性の
軽減が図れるマンホール等用足掛具を提供するこ
とを目的とするものである。 The present invention has been made in view of the above-mentioned problems, and aims to provide a footrest for manholes, etc., which can improve workability during installation and reduce danger.
本考案は上記目的を達成するため、足掛部の一
端部にのみ脚部を連設して足掛部と１つの脚部と
によりＬ字状の主枠部を形成し、該脚部の先端部
を、該脚部の軸線に対して直交状に屈曲して回り
止め突部を形成したというものである。 In order to achieve the above object, the present invention has a leg connected to only one end of the footrest, and the footrest and one leg form an L-shaped main frame. The distal end portion is bent perpendicularly to the axis of the leg to form a rotation preventing protrusion.
以下本考案の実施例を図面を参照しながら説明
する。第３図および第４図に示すように、本考案
に係る足掛具は一本の鉄筋を折曲してＬ字状に形
成したもので、すなわち足掛部１０と、足掛部１
０の一端部から足掛具１０の軸線に対して直交状
にのびる脚部１１とからなり、この足掛部１０と
１つの脚部１１とは主枠部を形成している。脚部
１１の先端部は、脚部１１の軸線に対して折曲さ
れて回り止め突部１２を形成している。 Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 3 and 4, the footrest according to the present invention is formed by bending a single reinforcing bar into an L-shape.
The footrest 10 and one leg 11 form a main frame. The distal end portion of the leg portion 11 is bent with respect to the axis of the leg portion 11 to form a rotation preventing protrusion 12 .
しかし足掛具としては上記に限らず、たとえば
第５図に示すように足掛具１０の他端部を脚部１
１と平行状に折曲して補助杆部１３を形成しても
よい。この補助杆部１３は脚部１１よりも短く
し、マンホール側塊には埋設されない。補助杆部
１３は、工具の吊り下げあるいは昇降時における
補助用の把持部および足掛部としての役割を果た
す。 However, the footrest is not limited to the above-mentioned example, and for example, as shown in FIG.
The auxiliary rod portion 13 may be formed by bending the rod portion 1 parallel to the rod portion 1 . This auxiliary rod part 13 is made shorter than the leg part 11 and is not buried in the manhole side block. The auxiliary rod part 13 serves as an auxiliary grip part and a foothold part when suspending or raising/lowering a tool.
１４は鉄筋を被覆する合成樹脂で、脚部１１の
先端部を除いたすべての部分に被覆されている。 Numeral 14 is a synthetic resin that covers the reinforcing bars, and covers all parts of the legs 11 except for the tips.
上記いずれの場合においてもマンホール側塊に
埋設されるのは一本の脚部１１だけであり、した
がつて従来の足掛具に比べて強度が低下すること
になるが、この点は鉄筋の径を若干大きくするこ
とによつて補うことが可能である。 In any of the above cases, only one leg 11 is buried in the manhole side mass, and therefore the strength is lower than that of conventional footrests, but this point is different from the reinforcement This can be compensated for by slightly increasing the diameter.
１５は、従来品と同様の模様である。なお、１
６は指の間隔または僅に広い間隔に対応した間隔
で横方向に連設された凹部であり、本足掛具は、
マンホール昇降の際には手で把持されるものでも
あるから、この把持の際には該凹部１６が手に適
合するので、把持し易く、また、滑り止めの機能
も果すものである。 15 has the same pattern as the conventional product. In addition, 1
6 is a concave part which is connected in the horizontal direction at intervals corresponding to the interval between fingers or a slightly wider interval, and the main leg hanger is
Since it is held by hand when going up and down the manhole, the concave portion 16 fits the hand, making it easy to hold and also serves as a non-slip function.
以上述べた如き本考案によれば、足掛具をマン
ホールに取付ける際、埋設する脚部が１本のみで
あるので、作業性の向上と危険性の軽減が果せ、
また回り止め突部を備えているので、足掛具の取
り付け時に足掛具が、脚部を中心にして回動する
ことがなく、したがつて足掛具の取付け作業が容
易に行える。 According to the present invention as described above, only one leg is buried when attaching a foothold to a manhole, which improves work efficiency and reduces danger.
Further, since the anti-rotation protrusion is provided, the footrest does not rotate around the leg when the footrest is attached, and therefore the work of attaching the footrest can be easily performed.
第１図は従来のマンホール等用足掛具の平面
図、第２図は第１図の右側面図、第３図は本考案
に係る一実施例の平面図、第４図は第３図の右側
面図、第５図は本考案の他の実施を示す平面図で
ある。
１０……足掛部、１１……脚部、１２……回り
止め突部。
Fig. 1 is a plan view of a conventional footrest for manholes, etc., Fig. 2 is a right side view of Fig. 1, Fig. 3 is a plan view of an embodiment of the present invention, and Fig. 4 is Fig. 3. FIG. 5 is a plan view showing another implementation of the present invention. 10... Foothold portion, 11... Leg portion, 12... Rotation prevention protrusion.
Claims (1)
するマンホール昇降用の足掛具において、 前記足掛部の一端部にのみ脚部を連設して該足
掛部と１つの脚部とによりＬ字状の主枠部を形成
し、 該脚部の先端部を、該脚部の軸線に対して直交
状に屈曲して回り止め突部を形成したことを特徴
とするマンホール等用足掛具。[Scope of Claim for Utility Model Registration] A footrest for lifting up and down a manhole, which has a foothold portion and a leg portion embedded in the manhole wall, wherein the leg portion is connected only to one end portion of the foothold portion, and the leg portion is connected to one end portion of the foothold portion. An L-shaped main frame is formed by the hanging part and one leg, and the tip of the leg is bent orthogonally to the axis of the leg to form a detent protrusion. A footrest for manholes, etc., featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6093982U JPS58162999U (en) | 1982-04-26 | 1982-04-26 | Footrests for manholes, etc. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6093982U JPS58162999U (en) | 1982-04-26 | 1982-04-26 | Footrests for manholes, etc. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58162999U JPS58162999U (en) | 1983-10-29 |
| JPH0113760Y2 true JPH0113760Y2 (en) | 1989-04-21 |
Family
ID=30071167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6093982U Granted JPS58162999U (en) | 1982-04-26 | 1982-04-26 | Footrests for manholes, etc. |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58162999U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60148360U (en) * | 1984-03-08 | 1985-10-02 | 日之出水道機器株式会社 | Hand grip for underground structures |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5216110Y2 (en) * | 1974-04-25 | 1977-04-12 |
-
1982
- 1982-04-26 JP JP6093982U patent/JPS58162999U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58162999U (en) | 1983-10-29 |
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