JPH02178466A - Inner formwork for concrete - Google Patents
Inner formwork for concreteInfo
- Publication number
- JPH02178466A JPH02178466A JP33237788A JP33237788A JPH02178466A JP H02178466 A JPH02178466 A JP H02178466A JP 33237788 A JP33237788 A JP 33237788A JP 33237788 A JP33237788 A JP 33237788A JP H02178466 A JPH02178466 A JP H02178466A
- Authority
- JP
- Japan
- Prior art keywords
- panel
- formwork
- concrete
- inner formwork
- panels
- 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.)
- Granted
Links
- 238000009415 formwork Methods 0.000 title claims abstract description 47
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本考案は、筒形コンクリート製品を成形するに好適なコ
ンクリート用内型枠に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an inner formwork for concrete suitable for forming cylindrical concrete products.
（従来の技術）
筒形の内型枠を外型枠で囲み、これの内型枠と外型枠と
の間の隙間へコンクリートを打ち込み、コンクリートが
固化した後に内・外型枠を取り除いて筒形のコンクリー
ト製品を得る技術は良く知られている。(Conventional technology) A cylindrical inner formwork is surrounded by an outer formwork, concrete is poured into the gap between the inner formwork and the outer formwork, and after the concrete has hardened, the inner and outer formworks are removed. The technology for obtaining cylindrical concrete products is well known.
これら内・外型枠は取り外しを考慮して適当に分割され
、組立時にボルト締結するものが普通である。These inner and outer formworks are usually divided into sections to allow for removal, and are bolted together during assembly.
外型枠は筒形コンクリート製品の外側に位置している為
、作業員が楽に寄り付けるので型ばらしは容易である。Since the outer formwork is located on the outside of the cylindrical concrete product, workers can approach it easily, making it easy to disassemble the form.
一方、内型枠はコンクリート製品の内側に位置している
為、作業員が寄り付き難く、型ばらしに時間がかかる。On the other hand, since the inner formwork is located inside the concrete product, it is difficult for workers to access it and it takes time to break it out.
（発明が解決しようとする課題）
ココ／クリート製品を複数個数成形する場合には、前記
内型枠の組立・分解が難しい為に作業性が悪化し、作業
時間が増加する不具合がある。(Problems to be Solved by the Invention) When molding a plurality of coco/crete products, there is a problem that the inner formwork is difficult to assemble and disassemble, resulting in poor workability and increased working time.
よりて、外型枠と同等以上に取扱い良く、作業性の良い
内型枠が求められている。Therefore, there is a need for an inner formwork that is as easy to handle and work as the outer formwork.
（課題を解決するための手段）
上記要求に応えるべく本発明は、内型枠をくさび作用を
為す駆動パネルと従動パネルとで構成し、駆動パネルと
従動パネルの一方には他方のパネルのテーパ壁裏面に当
接するガイドローラを設けたことを特徴とする。(Means for Solving the Problems) In order to meet the above requirements, the present invention comprises an inner formwork consisting of a driving panel and a driven panel that act as a wedge, and one of the driving panel and the driven panel has a taper of the other panel. It is characterized by the provision of a guide roller that comes into contact with the back surface of the wall.
（作用）
駆動パネルを移動して従動パネルを引き寄せる。引き寄
せられた壁パネルは始めの内型枠より小断面若しくは小
径になり、コンクリート内面から外れる。(Function) Move the driving panel and pull the driven panel closer. The drawn wall panels have a smaller cross-section or diameter than the original inner formwork and are removed from the inner surface of the concrete.
移動した駆動パネルを元に戻すと、駆動パネルは従動パ
ネルを押し出して、始めの内型枠に復元する。When the moved driving panel is returned to its original position, the driving panel pushes out the driven panel and restores the original inner form.
よって、内型枠はボルト・ナツトの締結・分離を必要と
せず且つパネル同士をバラバラにする必要も無い。Therefore, the inner formwork does not require fastening or separating bolts and nuts, and there is no need to separate the panels.
（実施例） 本発明の実施例を添付図面に基づいて以下に説明する。(Example) Embodiments of the present invention will be described below based on the accompanying drawings.
第１図は本発明に係るコンクリート用型枠平面図である
。FIG. 1 is a plan view of a concrete form according to the present invention.
コンクリート用型枠１は、地面上に置かれる枠台２と、
この枠台２上に載置される外型枠３並びに内型枠１０と
からなる。The concrete formwork 1 includes a frame stand 2 placed on the ground,
It consists of an outer formwork 3 and an inner formwork 10 placed on this frame stand 2.
外型枠３は広幅な外パネル４，４とやや狭幅な内パネル
５．５とからなる４枚のパネルを立設して角筒を構成す
るもので、第１図のへ方向から見た外型枠の斜視図であ
る第２図に基づいて外型枠３の構造を詳述する。The outer formwork 3 constitutes a rectangular tube by erecting four panels consisting of wide outer panels 4, 4 and slightly narrower inner panels 5.5. The structure of the outer formwork 3 will be explained in detail based on FIG. 2, which is a perspective view of the outer formwork.
外パネル４は、矩形平板４ａに枠４ｂで縁取りし、リブ
４ｃで補強した枠体である。The outer panel 4 is a frame body in which a rectangular flat plate 4a is edged with a frame 4b and reinforced with ribs 4c.
内パネル５も同様に、平板５ａと枠５ｂとリブ５Ｃとか
らなる枠体である。Similarly, the inner panel 5 is a frame body consisting of a flat plate 5a, a frame 5b, and ribs 5C.
これら外パネル４，４及び内パネル５，５は第２図中想
像線Ｄ１に示した位置から矢印方向へ建てかけ、互いの
コーナを合せ、クランパ６・・・で連結する。These outer panels 4, 4 and inner panels 5, 5 are erected in the direction of the arrow from the position shown by the imaginary line D1 in FIG. 2, their corners aligned, and connected by clampers 6...
第３図は第２図のＢ断面図であり、クランパ６は外パネ
ル４側に設けた偏心軸６ａと、この偏心軸６ａに軸支さ
れて揺動する型材６ｂと、偏心軸６ａを人手にて回転さ
せる為のレバー６ｃと、内パネル５側に設けたピン６ｄ
とから成る。FIG. 3 is a cross-sectional view of FIG. a lever 6c for rotating it and a pin 6d provided on the inner panel 5 side.
It consists of
レバー６ｃを想像線Ｄ２に示す位置にして、人手にて型
材６ｂをビン６ｄに掛け、次いでレバー６ｃを矢印方向
に回転させると偏心軸６ａが偏心して型材６ｂを図面下
方へ移動せしめる。When the lever 6c is placed in the position shown by the imaginary line D2 and the molded material 6b is manually hung on the bin 6d, then the lever 6c is rotated in the direction of the arrow, the eccentric shaft 6a is eccentrically moved to move the molded material 6b downward in the drawing.
型材６ｂは強くビン６ｄに係合して強固な外型枠３を構
成する。The mold material 6b is strongly engaged with the bin 6d to form a strong outer mold frame 3.
一方、内型枠１０は第１図に示す通り、比較的小さな駆
動パネルｔｔ、ｔｉとこれより大きな従動パネル１２．
１２とからなり、これらは矩形筒を構成する。On the other hand, as shown in FIG. 1, the inner formwork 10 consists of relatively small drive panels tt, ti and larger driven panels 12.
12, and these constitute a rectangular cylinder.
第４図は第１図のＣ矢視図であって内型枠の部分斜視図
であり、図示する如く駆動パネル１１は下方へ拡がった
テーパ形状の平板１１ａ、１１ａと、これら平板を直角
に突合せ接合した後の左右端に上下方向に延設したテー
パ壁１１ｂ、ｌｌｂと、これらテーパ壁並びに前記平板
１１ａ。FIG. 4 is a partial perspective view of the inner formwork, which is a view taken along arrow C in FIG. Taper walls 11b and 11b extend vertically at the left and right ends after butt-joining, and these tapered walls and the flat plate 11a.
１１ａを補強するリブｌｌｃ・・・とからなる。It consists of ribs llc... which reinforce 11a.
テーパ形でくさび作用を為す駆動パネル１１の下部に、
回転軸１３ａとレバー１３ｂと連結棒１３ｃとピン１３
ｄ、１３ｄとからなる駆動パネル用移動機構１３が取付
けられている。前記回転軸１３ａは枠台２に軸支されて
いる。At the bottom of the drive panel 11, which has a tapered shape and acts as a wedge,
Rotating shaft 13a, lever 13b, connecting rod 13c and pin 13
A drive panel moving mechanism 13 consisting of d and 13d is attached. The rotating shaft 13a is pivotally supported by the frame 2.
従動パネル１２は、駆動パネル１１と同様に平板１２ａ
とテーパｊ７１２ｂと、リブ１２ｃ・・・とからなる。The driven panel 12, like the drive panel 11, has a flat plate 12a.
, a taper j712b, and a rib 12c.
なお、図中１２ｅ・・・はストッパ部材であり、コンク
リートの圧力で駆動パネル１１が内側へ突出するのを防
ぐ作用を為す。In the figure, reference numerals 12e, . . . are stopper members, which serve to prevent the drive panel 11 from protruding inward due to the pressure of the concrete.
また、従動パネル１２．１２の平板１２ａ。Also, the flat plate 12a of the driven panel 12.12.
１２ａを駆動パネル１１へ若干張り出し、これら張り出
しで駆動パネル１１の外方へのせり出しを防ぐようにし
ている。12a is slightly overhanging toward the drive panel 11, and these overhangs prevent the drive panel 11 from protruding outward.
駆動パネルのテーパ壁１１ｂとこれに対向する従動パネ
ルのテーパ壁１２ｂとは互いにテーパ壁前面１１ｄ、１
２ｄ（第５図参照）で当接するとともに、これらテーパ
壁ｆｉｂ、１２ｂを跨ぐようにしてガイド部材１４・・
・が配設されている。The tapered wall 11b of the drive panel and the tapered wall 12b of the driven panel opposing thereto are mutually connected to the tapered wall front surfaces 11d, 1.
2d (see FIG. 5) and straddles these tapered walls fib and 12b.
・is provided.
これらガイド部材１４・・・は、第４図のＤ−Ｄ断面図
である第５図に示すように、例えばプラケット１４ａを
従動パネル１２に溶接止めし、このブラケット１４ａヘ
ボルト長孔１４ｂを備えたローラ支持板１４ｃをボルト
止めし、このローラ支持板に段付き軸１４ｄを介して回
転自在にガイドローラ１５を取付けてなる。As shown in FIG. 5, which is a cross-sectional view taken along the line DD in FIG. 4, these guide members 14... have, for example, a bracket 14a welded to the driven panel 12, and a long bolt hole 14b in the bracket 14a. A roller support plate 14c is bolted, and a guide roller 15 is rotatably attached to the roller support plate via a stepped shaft 14d.
ガイドローラ１５は駆動パネルのテーパ壁裏面ｌｉｅを
回転しながら移動する。The guide roller 15 moves while rotating on the back surface of the tapered wall of the drive panel.
以上の構成からなるコンクリート用型枠の作用を次に説
明する。The operation of the concrete formwork constructed as described above will be explained next.
先ず地上に置いた枠台２に内型枠１０を第４図に示すよ
うにセットする。即ち、移動機構１３の回転軸１３ａを
図示せぬ油圧ジヤツキ、機械式ジヤツキ、モータもしく
は人力にた回転せしめ、レバー１３ｂと連結棒１３ｃを
介してテーパ状の駆動パネル１１を上昇せしめる。First, the inner formwork 10 is set on the frame stand 2 placed on the ground as shown in FIG. That is, the rotating shaft 13a of the moving mechanism 13 is rotated by a hydraulic jack, mechanical jack, motor, or human power (not shown), and the tapered drive panel 11 is raised via the lever 13b and the connecting rod 13c.
駆動パネルのテーパ壁ｔｔｂ、ｔｔｂは対向する従動パ
ネルのテーパ壁１２ｂ、１２ｂに摺接しながら上動し、
従動パネル１２．１２を押し出す所謂くさび作用を為す
。駆動パネルｉｔ、ｉｔが所定の高さに達したら停止し
、駆動パネル１１゜１１が下らぬように処置する。The tapered walls ttb, ttb of the drive panel move upward while slidingly contacting the tapered walls 12b, 12b of the opposing driven panel,
It has a so-called wedge effect that pushes out the driven panel 12.12. When the drive panels it, it reach a predetermined height, they are stopped and measures are taken to prevent the drive panels 11.degree. 11 from falling.
また、外型枠３を既述した手順で組合せてコンクリート
用型枠１の組立を完了する。Further, the outer formwork 3 is assembled in accordance with the procedure described above to complete the assembly of the concrete formwork 1.
外型枠３と内型枠１０との間の隙間にコンクリートを打
込み、コンクリートの固化を待つ。Concrete is poured into the gap between the outer formwork 3 and the inner formwork 10, and the concrete is waited for to solidify.
コンクリートが固化した後、クランパ６・・・を外して
外型枠の外パネル４．４及び内パネル５．５を外方へ倒
して、外型枠３を外す。After the concrete has hardened, the clampers 6 are removed, the outer panel 4.4 and the inner panel 5.5 of the outer form are pushed outward, and the outer form 3 is removed.
一方、内型枠１０の駆動パネル１１を移動機構１３にて
引き下げる。On the other hand, the drive panel 11 of the inner formwork 10 is pulled down by the moving mechanism 13.
駆動パネル１１が下降すると、駆動パネルのテーパ壁ｆ
ｌｂは対向する従動パネルのテーパ壁１２ｂから離れよ
うとする。しかし、第５図に示す駆動パネルのテーパ壁
ｔｉｂ、ｚｂが図示＋Ｘ又は＋Ｙ力方向移動しようとす
ると、これらの裏面ｌｉｅ、ｌｉｅはガイドローラ１５
．１５を押し、ガイドローラ１５．１５は従動パネル１
２．１２に連結しているので、従動パネル１２．１２を
＋Ｙ又は＋Ｘ方向へ引き寄せることになる。When the drive panel 11 is lowered, the tapered wall f of the drive panel
lb tends to separate from the tapered wall 12b of the opposing driven panel. However, when the tapered walls tib and zb of the drive panel shown in FIG.
．． 15, and the guide roller 15.15 is the driven panel 1.
2.12, it will pull the driven panel 12.12 in the +Y or +X direction.
この結果、内型枠１０は小さな矩形になり、コンクリー
トから外れる。As a result, the inner formwork 10 becomes a small rectangle and detaches from the concrete.
このコンクリート製品を適当な吊上げ手段で吊上げれば
型ぬきを容易に完了する。By lifting this concrete product using a suitable lifting means, mold cutting can be easily completed.
そして、ガイドローラ１５を採用しているので駆動パネ
ル１１の移動に必要な作用力は小さく、以って移動機構
１３の小型化を図れる。Further, since the guide roller 15 is employed, the acting force required to move the drive panel 11 is small, so that the moving mechanism 13 can be made smaller.
尚、本実施例は矩形な内型枠について説明したが、これ
に限るものでは無く、円形、楕円形など筒形であれば多
様な内型枠に本考案を適用して良い。Although the present embodiment has been described with respect to a rectangular inner form, the present invention is not limited to this, and the present invention may be applied to various inner forms as long as they have a cylindrical shape such as a circle or an ellipse.
また、駆動パネル１１は上に拡がったテーパ形や左右一
方のテーパ壁のみを傾斜させた所謂片テーパ形でも良い
。Further, the drive panel 11 may have a tapered shape that expands upward, or a so-called single-tapered shape where only one of the left and right tapered walls is inclined.
更に、ガイドローラ１５・・・を駆動パネル１１に連結
して設けても良い。Furthermore, the guide rollers 15 may be connected to the drive panel 11.
（発明の効果）
以上に述べたように本発明によれば、内型枠はボルト・
ナツトの締結・分離を必要とせず且つパネル同士をバラ
バラにする必要がなく、容易に且つ短時間でコンクリー
ト製品から外れ、更に復元も極めて容易になり、作業性
の効率化並びに作業時間の短縮化を図れ、特に量産工程
に著しい効果を奏する。(Effect of the invention) As described above, according to the present invention, the inner formwork is
There is no need to tighten or separate nuts, and there is no need to separate the panels, so they can be easily removed from the concrete product in a short time, and restoration is also extremely easy, improving work efficiency and shortening work time. This is particularly effective in mass production processes.
第１図は本発明に係るコンクリート用型枠平面図、第２
図は第１図のへ方自から見た斜視図、第３図は第２図の
Ｂ断面図、第４図は第１図のＣ矢視図、第５図は第４図
のＤ−Ｄ断面図である。
１・・・コンクリート用型枠 ３・・・外型枠１０・・
・内型枠 １１・・・駆動パネル１１ｂ・・
・同テーパ壁 ｌｉｅ・・・テーパ壁裏面１２・・
・従動パネル １２ｂ・・・同テーパ壁１５・・
・ガイドローラ
特 許 出 願 人 有限会社 皆川製作所代理人
弁理士 下 １） 容一部間 弁理士
大 橋 邦 度量 弁理士 小 山
有第４図FIG. 1 is a plan view of concrete formwork according to the present invention, and FIG.
The figure is a perspective view seen from the direction of Figure 1, Figure 3 is a cross-sectional view of B in Figure 2, Figure 4 is a view taken in the direction of arrow C in Figure 1, and Figure 5 is a view taken from D-- in Figure 4. It is a D sectional view. 1... Concrete formwork 3... Outer formwork 10...
・Inner formwork 11... Drive panel 11b...
・Same tapered wall lie... Tapered wall back side 12...
- Driven panel 12b... Tapered wall 15...
・Guide roller patent applicant Minagawa Seisakusho Co., Ltd. Agent
Patent Attorney Part 2 1) Part 1 Patent Attorney
Kuni Ohashi Patent Attorney Koyama
Figure 4
Claims (1)
の間の隙間にコンクリートを打ち込んでコンクリート製
品を成形製造するコンクリート用型枠において、 前記内型枠は、筒形から分割された駆動パネルと従動パ
ネルとから成り、これら駆動パネルと従動パネルとの対
向面はテーパ壁とするとともに、駆動パネルと従動パネ
ルの一方には他方のパネルのテーパ壁裏面に当接するガ
イドローラを設けたことを特徴とするコンクリート用内
型枠。[Scope of Claims] A formwork for concrete in which a cylindrical inner formwork is surrounded by an outer formwork, and concrete is poured into the gap between the inner formwork and the outer formwork to form and manufacture a concrete product, comprising: The inner formwork consists of a driving panel and a driven panel that are divided from a cylindrical shape.The facing surfaces of the driving panel and the driven panel are tapered walls, and one of the driving panel and the driven panel is provided with a wall of the other panel. An inner formwork for concrete characterized by being provided with a guide roller that comes into contact with the back surface of a tapered wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63332377A JPH0663351B2 (en) | 1988-12-28 | 1988-12-28 | Inner formwork for concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63332377A JPH0663351B2 (en) | 1988-12-28 | 1988-12-28 | Inner formwork for concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02178466A true JPH02178466A (en) | 1990-07-11 |
| JPH0663351B2 JPH0663351B2 (en) | 1994-08-22 |
Family
ID=18254286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63332377A Expired - Fee Related JPH0663351B2 (en) | 1988-12-28 | 1988-12-28 | Inner formwork for concrete |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0663351B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100641412B1 (en) * | 2005-04-22 | 2006-10-31 | 장창근 | The structure to construct inner mold of elevator housing |
| KR100800536B1 (en) * | 2006-04-06 | 2008-02-04 | 깨뱉시스템주식회사 | The large-sized form for removing easily, coupling structure of form-reinforcing bar and wall construction method using the same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100970432B1 (en) * | 2010-03-29 | 2010-07-15 | 주식회사 케이씨산업개발 | Mold for reverse taper shape hole in concrete |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5661553U (en) * | 1980-09-25 | 1981-05-25 | ||
| JPS5831707A (en) * | 1981-08-19 | 1983-02-24 | 北村 博 | Clamping device for formwork |
-
1988
- 1988-12-28 JP JP63332377A patent/JPH0663351B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5661553U (en) * | 1980-09-25 | 1981-05-25 | ||
| JPS5831707A (en) * | 1981-08-19 | 1983-02-24 | 北村 博 | Clamping device for formwork |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100641412B1 (en) * | 2005-04-22 | 2006-10-31 | 장창근 | The structure to construct inner mold of elevator housing |
| KR100800536B1 (en) * | 2006-04-06 | 2008-02-04 | 깨뱉시스템주식회사 | The large-sized form for removing easily, coupling structure of form-reinforcing bar and wall construction method using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0663351B2 (en) | 1994-08-22 |
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