JPH0128194Y2 - - Google Patents
Info
- Publication number
- JPH0128194Y2 JPH0128194Y2 JP1983141441U JP14144183U JPH0128194Y2 JP H0128194 Y2 JPH0128194 Y2 JP H0128194Y2 JP 1983141441 U JP1983141441 U JP 1983141441U JP 14144183 U JP14144183 U JP 14144183U JP H0128194 Y2 JPH0128194 Y2 JP H0128194Y2
- Authority
- JP
- Japan
- Prior art keywords
- void
- concrete
- lid
- protrusion
- pouring
- 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
- 239000011800 void material Substances 0.000 claims description 30
- 238000009415 formwork Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
Landscapes
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Description
【考案の詳細な説明】
本考案はコンクリートスラブ打設特に予めパイ
プ等の貫通用孔を形成するため型枠上に立設する
ボイド（紙製円筒）の蓋に係る。[Detailed Description of the Invention] The present invention relates to a lid for a void (paper cylinder) that is erected on a formwork for pouring a concrete slab, particularly for forming a through hole for a pipe or the like in advance.
コンクリート建造物においてコンクリートスラ
ブを打設するに際して、予めスラブにパイプその
他の貫通用孔を形成するために、第２図で示すよ
うに型枠Ａの上面にボイドａを立てて固定した状
態でコンクリートＢを打込むことが行はれる。こ
の場合コンクリートの打設後その表面を平滑面に
均す作業を容易にし、又スラブ工事を終つて型枠
Ａを除去した段階において直ちに貫通孔が形成さ
れると雨天時に該貫通孔から雨が進入して階下に
落下する幣害があるので、ボイドａはその高さを
コンクリートスラブＢの高さより低くし、打設に
よつてボイドａの上面を被覆するようにする。 When pouring a concrete slab in a concrete building, in order to form through holes for pipes and other objects in the slab in advance, a void a is erected and fixed on the top of formwork A as shown in Figure 2, and the concrete is placed in a fixed state. You can now type B. In this case, it will be easier to level the surface of the concrete after it is poured, and if the through holes are formed immediately after the slab work is completed and the formwork A is removed, rain will not come through the through holes during rainy days. Since there is a risk of damage caused by debris entering the concrete slab and falling downstairs, the height of the void a is made lower than the height of the concrete slab B, and the upper surface of the void a is covered by pouring.
従つて打設に際しコンクリートがボイドａ内に
充填されることのないように従来はボイドａの内
部に充填物を詰込み、或いはボイドａの上部を潰
して閉塞し、又は粘着テープを貼つて閉鎖するこ
とによりコンクリートの進入を防止していた。し
かし、この場合にもコンクリート打設前に内部に
充填した詰物が取出されたり、他の設備工事のた
め踏潰されて転倒し、或は粘着テープの破損によ
りコンクリートが進入する幣害を避けることがで
きず、又コンクリートの打設によつてボイドａは
全く隠蔽されるため外部からその位置を確認する
ことが不可能となり、このためスラブ上に足場を
作るとき台脚が偶然にボイドａの位置となつて上
面コンクリート層を破つて陥没して足場が崩れる
等の危険があり、更にコンクリート打設後にボイ
ドａが定姿勢で定位置に保持されているかどうか
の不安を有していた。 Therefore, in order to prevent concrete from being filled into the void a during pouring, conventional methods have been to fill the void a with filler, to close the void by crushing the upper part of the void a, or to close it by pasting adhesive tape. This prevented concrete from entering. However, even in this case, it is important to avoid damage caused by the filling filled inside being taken out before concrete pouring, by being crushed and falling due to other equipment work, or by concrete entering due to damage to the adhesive tape. In addition, void a is completely hidden by concrete pouring, making it impossible to confirm its position from the outside.For this reason, when constructing scaffolding on a slab, the pedestal may accidentally fall into void a. There was a danger that the concrete layer would collapse and the top concrete layer would collapse, causing the scaffold to collapse.Furthermore, there was uncertainty as to whether the void a would be maintained in a fixed position after the concrete was placed.
本考案はこれら従来の不便を排除し、コンクリ
ートの打設前にはボイドａを補強して形崩れを防
止して型枠Ａ上に安定させ、打設後にもボイドａ
の位置を確認し得るようにしたことを目的とし、
ボイドａの外径と略同形大の円形蓋体１の裏面
に、ボイドａの口部に内接する突部２を設けると
共に表面中心部に適宜長さの棒状弾性突片３を突
設したことを特徴とする。 The present invention eliminates these conventional inconveniences, and before pouring concrete, voids a are reinforced to prevent deformation and stabilized on formwork A, and even after concrete is poured, voids a are reinforced.
The purpose is to make it possible to confirm the location of
A protrusion 2 inscribed in the mouth of the void a is provided on the back surface of a circular lid 1 having approximately the same size as the outer diameter of the void a, and a rod-shaped elastic protrusion 3 of an appropriate length is protruded from the center of the surface. It is characterized by
本考案の実施例を図面について説明する。 Embodiments of the present invention will be described with reference to the drawings.
図面で１は本考案に係るボイドの蓋体を示し、
材料は適当な硬度を有する合成樹脂等が製作上便
利であるが、樹脂に限らず他の適当な材料を使用
し得られ、該蓋体１はボイドａの外径と略同径大
に製作して、その裏面にはボイドａの口部に内接
する突部２を形成する。図示例では該突部２をボ
イドの口部に内接する環状壁で形成したものを示
すが、複数の突部２を円周上に配置突設してもよ
い。蓋体１の表面中心部には適宜長さの棒状弾性
突片３を突設する。図示例では蓋体１と一体に合
成樹脂で形成してその材質による弾性を利用した
が、硬質材料製の蓋体１において、弾性材から成
る突片３を植設又は結着して形成してもよい。 In the drawings, 1 indicates a void lid according to the present invention,
As for the material, a synthetic resin having an appropriate hardness is convenient for manufacturing, but other suitable materials other than resin can also be used, and the lid body 1 is manufactured to have a diameter approximately equal to the outer diameter of the void a. A protrusion 2 inscribed in the mouth of the void a is formed on the back surface thereof. In the illustrated example, the protrusion 2 is formed of an annular wall inscribed in the mouth of the void, but a plurality of protrusions 2 may be arranged and provided protrudingly on the circumference. A rod-shaped elastic protrusion 3 of an appropriate length is provided protruding from the center of the surface of the lid 1. In the illustrated example, it is formed integrally with the lid 1 from synthetic resin to take advantage of the elasticity of that material. It's okay.
この蓋は第２図で示すように型枠Ａ上の定位置
に例えば釘ｃ等を打込んで立設したボイドａの口
部に突部２を嵌込んで被着しボイドａの口部を閉
塞するもので、コンクリートは蓋の棒状弾性突片
３の先端部が適当長さ露出する高さまでボイドａ
を埋込んで打設しスラブＢを形成する。本考案に
よる蓋は、これをボイドａの口部に施して閉塞す
るとき裏面の突部２はボイドａの口部に内接する
から歪形するボイドの口部を正常の形状に保持す
ると共にコンクリート打設によるもボイドａの形
状が崩れることなく保形され、且つ蓋体１はボイ
ドａの外径と略同形大としたのでボイドａの上面
を覆うスラブ層を除くことにより容易に蓋を取出
して貫通孔を露出させることができ、更にコンク
リートの打設後にも表面の棒状弾性突片３の先端
部がスラブＢの上面から露出するため、これを標
識としてボイドａの位置を外部から容易に確認す
ることができ、又該突片３は弾性を有するから踏
まれても折損ずることなく直ちに起立復元し、コ
ンクリートの打設後その表面を平滑に仕上げる鏝
作業においても自由に倒れた後起立するから支障
となることなく、必要により該突片３に色彩を施
しておけばボイドａによる用途別の貫通孔を識別
し得る等の優れた効果を有する。 As shown in Fig. 2, this lid is attached by fitting a protrusion 2 into the opening of a void a which is set upright by driving a nail c or the like into a fixed position on the formwork A. The concrete is used to close the void a to a height where the tip of the rod-shaped elastic protrusion 3 of the lid is exposed for an appropriate length.
embed and cast to form slab B. When the lid according to the present invention is applied to the mouth of the void a to close it, the protrusion 2 on the back side is inscribed in the mouth of the void a, so that the mouth of the void which is distorted can be maintained in its normal shape, and the lid can be made of concrete. The shape of the void a is maintained without collapsing even after pouring, and since the lid body 1 is approximately the same size as the outer diameter of the void a, the lid can be easily removed by removing the slab layer covering the top surface of the void a. The through hole can be exposed through the hole, and since the tip of the bar-shaped elastic protrusion 3 on the surface is exposed from the top surface of the slab B even after concrete is poured, the position of the void a can be easily determined from the outside using this as a marker. Furthermore, since the projecting piece 3 has elasticity, it immediately returns to its upright position without breaking even if it is stepped on, and even during troweling work to smoothen the surface of concrete after pouring, it falls freely and then stands up again. Therefore, if the projecting piece 3 is colored, if necessary, it will not cause any trouble, and it will have an excellent effect such as being able to identify the through-holes for different uses due to the voids a.
図面は本考案の実施例を示すもので、第１図は
蓋の斜視図、第２図は使用状態を示す截断側面図
である。
１……蓋体、２……裏面突部、３……棒状弾性
突片、ａ……ボイド。
The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view of the lid, and FIG. 2 is a cutaway side view showing the state of use. DESCRIPTION OF SYMBOLS 1...Lid body, 2...Back surface protrusion, 3...Bar-shaped elastic protrusion, a...Void.
Claims (1)
に、ボイドａの口部に内接する突部２を設けると
共に表面中心部に適宜長さの棒状弾性突片３を突
設して成るコンクリートスラブ打設用ボイドの
蓋。 A protrusion 2 inscribed in the mouth of the void a is provided on the back surface of a circular lid 1 having approximately the same size as the outer diameter of the void a, and a rod-shaped elastic protrusion 3 of an appropriate length is protruded from the center of the surface. A void cover for concrete slab pouring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14144183U JPS6051246U (en) | 1983-09-14 | 1983-09-14 | Void cover for concrete slab pouring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14144183U JPS6051246U (en) | 1983-09-14 | 1983-09-14 | Void cover for concrete slab pouring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6051246U JPS6051246U (en) | 1985-04-10 |
| JPH0128194Y2 true JPH0128194Y2 (en) | 1989-08-28 |
Family
ID=30316343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14144183U Granted JPS6051246U (en) | 1983-09-14 | 1983-09-14 | Void cover for concrete slab pouring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6051246U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7323110B2 (en) * | 2018-03-30 | 2023-08-08 | 博満 安徳 | Sleeve and installation method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5427226A (en) * | 1977-08-02 | 1979-03-01 | Kimikichi Nishimura | Method of opening pipe hole in concrete concrete floor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5648804Y2 (en) * | 1977-02-18 | 1981-11-14 |
-
1983
- 1983-09-14 JP JP14144183U patent/JPS6051246U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5427226A (en) * | 1977-08-02 | 1979-03-01 | Kimikichi Nishimura | Method of opening pipe hole in concrete concrete floor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6051246U (en) | 1985-04-10 |
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