JPH0734657A - Concrete formwork - Google Patents
Concrete formworkInfo
- Publication number
- JPH0734657A JPH0734657A JP17939093A JP17939093A JPH0734657A JP H0734657 A JPH0734657 A JP H0734657A JP 17939093 A JP17939093 A JP 17939093A JP 17939093 A JP17939093 A JP 17939093A JP H0734657 A JPH0734657 A JP H0734657A
- Authority
- JP
- Japan
- Prior art keywords
- forming
- concrete
- plate
- groove
- molding
- 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
Landscapes
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は例えば布基礎コンクリ
ートを打設するためのコンクリート型枠に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete formwork for placing cloth foundation concrete, for example.
【０００２】[0002]
【従来の技術】一般に、例えば布基礎コンクリートを打
設する際には、コンクリート型枠が複数個横方向に組み
合わされる。各コンクリート型枠にはそれぞれ成形板が
設けられ、その左右両側部は直角に折り曲げられ、一対
の側板が形成されるとともに、成形板の上下両端部も直
角に折り曲げられ、一対の水平補強板が形成されてい
る。この成形板を直角に折り曲げる加工方法として、従
来、図７に示すように、成形板１を直角のＶ字成形溝２
ａを有する第１成形型２と、直角のＶ字成形部３ａを有
する第２成形型３との間に介在して、両成形型２，３を
接近させて、成形板１を直角に折り曲げるようになって
いる。2. Description of the Related Art Generally, for example, when placing a cloth foundation concrete, a plurality of concrete forms are combined in the lateral direction. Forming plates are provided on each concrete formwork, and the left and right side parts are bent at right angles to form a pair of side plates, and the upper and lower end parts of the forming plate are also bent at right angles to form a pair of horizontal reinforcing plates. Has been formed. As a processing method for bending this forming plate at a right angle, conventionally, as shown in FIG. 7, a forming plate 1 is formed into a right angle V-shaped forming groove 2.
The forming plate 1 is bent at a right angle by interposing the first forming mold 2 having a and the second forming mold 3 having the right-angled V-shaped forming portion 3a to bring the forming molds 2 and 3 close to each other. It is like this.
【０００３】[0003]
【発明が解決しようとする課題】ところが、上記従来の
成形板１の折り曲げ加工方法においては、Ｖ字成形溝２
ａとＶ字成形部３ａとにより成形板１の折曲部Ｃの外側
角部に成型板１の厚さに応じて大きい曲面Ｍが形成され
る。このため、成形板１を使用したコンクリート型枠を
図６に示すように、互いに接合した状態で、曲面Ｍ，Ｍ
間に溝Ｋができる。従って、コンクリートを打設した
後、コンクリートの成形面に前記溝Ｋにより継ぎ目の筋
が成形されるという問題があった。なお、コンクリート
の成形面に上塗りをする場合には継ぎ目の筋は美観上問
題はないが、上塗りをしない場合には問題となる。However, in the conventional method for bending the forming plate 1, the V-shaped forming groove 2 is used.
By the a and the V-shaped molding portion 3a, a large curved surface M is formed at the outer corner of the bent portion C of the molding plate 1 according to the thickness of the molding plate 1. Therefore, as shown in FIG. 6, the concrete formwork using the forming plate 1 is joined to each other in the curved surfaces M, M.
A groove K is formed between them. Therefore, there is a problem that after the concrete is cast, the groove K forms a joint line on the molding surface of the concrete. It should be noted that when the top surface of the concrete is top-coated, the streak of the seam has no aesthetic problem, but it is a problem when the top-coat is not applied.
【０００４】この発明の目的はコンクリート打設時に複
数の型枠の接合部に形成される溝を無くしてコンクリー
トの成形面に継ぎ目の筋ができるのを防止することがで
きるコンクリート型枠を提供することにある。An object of the present invention is to provide a concrete formwork capable of preventing the formation of a seam streak on the concrete forming surface by eliminating the groove formed at the joint portion of a plurality of formwork when pouring concrete. Especially.
【０００５】[0005]
【課題を解決するための手段】この発明は上記目的を達
成するため、成形板の外周部を直角に折り曲げて側板を
形成したコンクリート型枠において、前記成形板の折曲
部の内側角部に凹状溝をプレス成形して折曲部の外側角
部の曲面を小さくするという手段をとっている。In order to achieve the above-mentioned object, the present invention provides a concrete formwork in which a side plate is formed by bending an outer peripheral portion of a forming plate at a right angle, and at a corner portion inside the bending portion of the forming plate. The concave groove is press-molded to reduce the curved surface at the outer corner of the bent portion.
【０００６】[0006]
【作用】この発明は成形板の折曲部の内側縁に凹状溝が
プレス形成されているので、折曲部の外側角部の曲面が
非常に小さくなる。このため複数の型枠を互いに接合し
た状態でその接合部に形成される溝が非常に小さくなる
ので、コンクリートの成形面の継ぎ目の筋は無視し得る
程度になり、美観上問題はなくなる。According to the present invention, since the concave groove is press-formed on the inner edge of the bent portion of the forming plate, the curved surface at the outer corner of the bent portion becomes very small. For this reason, the grooves formed in the joints of the plurality of molds in a state where they are joined to each other are extremely small, so that the streak of the joint on the molding surface of concrete becomes negligible and there is no aesthetic problem.
【０００７】[0007]
【実施例】以下、この発明を具体化した一実施例を図１
〜図５に基づいて説明する。先ず、最初にコンクリート
型枠に使用される成形板１の折曲加工方法について、述
べると、この実施例においては、図３，４に示すように
第１成形型２の上面には直角よりも若干小さい形成角α
のＶ字成形溝２ａが形成されている。さらに、前記Ｖ字
成形溝２ａと対応する位置には、第２成形型３が上下方
向の往復動可能に装設されている。この第２成形型３の
下部には直角よりも若干小さい形成角βのＶ字成形部３
ａが形成されている。このＶ字成形部３ａの下端部には
後述するように前記成形板１の折曲部Ｃの内側角部に凹
状溝１ａを形成するための凹状溝成形突条３ｂが一体に
形成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment embodying the present invention will now be described with reference to FIG.
~ It demonstrates based on FIG. First, the bending method of the forming plate 1 used for the concrete formwork will be described. In this embodiment, as shown in FIGS. Forming angle α
V shaped groove 2a is formed. Further, a second molding die 3 is mounted at a position corresponding to the V-shaped molding groove 2a so as to be vertically reciprocable. In the lower part of the second molding die 3, a V-shaped molding portion 3 having a forming angle β slightly smaller than a right angle is formed.
a is formed. A concave groove forming protrusion 3b for forming a concave groove 1a at an inner corner of the bent portion C of the forming plate 1 is integrally formed at the lower end of the V-shaped forming portion 3a, as will be described later. .
【０００８】上記両成形型２，３を使用して成形板１を
直角に折り曲げ加工するには、図４に示すように、第１
成形型２の上面に成形板１を水平に載置するとともに、
第２成形型３をＶ字成形溝２ａに対応させる。この状態
で第２成形型３を下方へ移動すると、図５に示すよう
に、成形板１は直角状に折り曲げられる。この時、成形
板１の折曲部Ｃの内側角部には凹状溝成形突条３ｂによ
って凹状溝１ａが形成される。又、Ｖ字成形部３ａは成
形板１の上面に押圧されるが、この押圧状態で凹状溝成
形突条３ｂとＶ字成形溝２ａとの間には、所定の隙間が
形成される。この結果、成形板１の折曲部Ｃの外側角部
には、薄肉部１ｂが形成される。従って、凹状溝１ａの
底部が薄肉部１ｂとなっているので、成形板１の折曲部
Ｃの外側角部はこの厚さに応じた曲率の非常に小さい曲
面Ｍに成形される。In order to bend the forming plate 1 at a right angle using both of the forming dies 2 and 3, as shown in FIG.
While placing the molding plate 1 horizontally on the upper surface of the molding die 2,
The second molding die 3 is made to correspond to the V-shaped molding groove 2a. When the second molding die 3 is moved downward in this state, the molding plate 1 is bent at a right angle as shown in FIG. At this time, the concave groove 1a is formed at the inner corner of the bent portion C of the forming plate 1 by the concave groove forming projection 3b. Further, the V-shaped forming portion 3a is pressed against the upper surface of the forming plate 1, and in this pressed state, a predetermined gap is formed between the concave groove forming protrusion 3b and the V-shaped forming groove 2a. As a result, the thin portion 1b is formed at the outer corner of the bent portion C of the forming plate 1. Therefore, since the bottom of the recessed groove 1a is the thin portion 1b, the outer corner of the bent portion C of the forming plate 1 is formed into a curved surface M having a very small curvature according to this thickness.
【０００９】前記Ｖ字成形溝２ａの形成角α及びＶ字成
形部３ａの形成角βを９０°よりも少し小さい形成角に
したのは、成形板１の成形終了直後に成形板１と側板１
ｃ（１ｄ）が弾性変形した状態で丁度９０°になるよう
にするためである。The forming angle α of the V-shaped forming groove 2a and the forming angle β of the V-shaped forming portion 3a are set to be slightly smaller than 90 ° because the forming plate 1 and the side plate are formed immediately after the forming of the forming plate 1 is completed. 1
This is to ensure that c (1d) is exactly 90 ° in the elastically deformed state.
【００１０】このようにして成形された成形板１は図２
に示すように例えば布基礎コンクリートを打設するため
のコンクリート成形型枠５として使用される。この型枠
５は、成形板１の左右及び上下を共に直角に湾曲して、
左右の補強側板１ｃ，１ｄと、上下の補強側板１ｅ，１
ｆとを形成している。前記成形板１と補強側板１ｃ，１
ｄとの折曲部Ｃには凹状溝１ａが形成されている。The molding plate 1 molded in this way is shown in FIG.
As shown in FIG. 5, it is used as a concrete forming frame 5 for pouring cloth foundation concrete, for example. This formwork 5 is curved at right angles to both the left and right sides of the molding plate 1, and
Left and right reinforcing side plates 1c, 1d and upper and lower reinforcing side plates 1e, 1
and f. The forming plate 1 and the reinforcing side plates 1c, 1
A concave groove 1a is formed at a bent portion C with respect to d.
【００１１】又、コンクリート型枠５には該型枠５同士
を互いに接合するため、取付金具６を成形板１の裏面に
溶接固定し、該取付板６に透設した案内孔６ａと前記側
板１ｃに透設した案内孔１ｇとにガイド棒７を左右方向
に往復動可能に貫通支持している。さらに、このガイド
棒７の途中には両型枠５，５の互いに接合される側板１
ｃ，１ｄを挟着するためのＵ字金具８が連結されてい
る。前記成形板１の裏面には複数の補強部材９が縦方向
に溶接固定されている。Further, in order to join the molds 5 to each other in the concrete form 5, a fitting 6 is welded and fixed to the back surface of the molding plate 1, and the guide hole 6a penetrating the mounting plate 6 and the side plate. A guide rod 7 is penetratingly supported in a guide hole 1g that is provided in 1c so as to reciprocate in the left-right direction. Further, in the middle of the guide rod 7, the side plates 1 of the two molds 5 and 5 to be joined to each other are provided.
U-shaped metal fittings 8 for sandwiching c and 1d are connected. A plurality of reinforcing members 9 are welded and fixed to the back surface of the molding plate 1 in the vertical direction.
【００１２】以上のように構成された型枠５，５の接合
部は、図１に示すように折曲部Ｃの外側角部の曲面Ｍが
非常に小さいので、接合部に形成される溝Ｋも極めて小
さい。このため布基礎コンクリートを打設した場合に、
コンクリートの成形面に目立つような継ぎ目の筋が形成
されることはなく、綺麗に仕上げられる。In the joint portion of the molds 5 and 5 constructed as described above, since the curved surface M of the outer corner of the bent portion C is very small as shown in FIG. 1, the groove formed in the joint portion. K is also extremely small. For this reason, when placing a cloth foundation concrete,
No noticeable seam streaks are formed on the concrete molding surface, and it is finished neatly.
【００１３】なお、この発明は前記実施例に限定される
ものではなく、次のように具体化することも可能であ
る。 （１）前記凹状溝成形突条３ｂを焼き入れして剛性をあ
げたり、別部材として第２成形型３のＶ字成形部３ａに
嵌合固定したりすること。The present invention is not limited to the above embodiment, but can be embodied as follows. (1) Hardening the concave groove forming projections 3b to increase rigidity, or fitting and fixing the concave groove forming protrusions 3b to the V-shaped forming portion 3a of the second forming die 3 as a separate member.
【００１４】（２）前記凹状溝成形突条３ｂの先端部の
形成角γは直角が望ましいが、この部分を鋭角あるいは
鈍角にすることもできる。 （３）前記凹状溝１ａの深さを成形板１の厚さに応じて
適宜に変更すること。(2) The forming angle γ of the tip portion of the concave groove forming projection 3b is preferably a right angle, but this portion can be an acute angle or an obtuse angle. (3) The depth of the recessed groove 1a is appropriately changed according to the thickness of the forming plate 1.
【００１５】（４）コンクリート型枠の四辺にそれぞれ
他のコンクリート型枠を接合する場合には、前記凹状溝
１ａを各辺に設けること。(4) When each of the four sides of the concrete formwork is joined to another concrete formwork, the concave groove 1a is provided on each side.
【００１６】[0016]
【発明の効果】以上詳述したように、この発明は複数の
コンクリート型枠の成形板の接合部に溝ができるのを防
止でき、この結果コンクリートの成形面に継ぎ目の筋が
形成されるのを防止することができる効果がある。As described above in detail, according to the present invention, it is possible to prevent a groove from being formed in the joint portion of the molding plates of a plurality of concrete molds, and as a result, the streak of the seam is formed on the molding surface of the concrete. There is an effect that can be prevented.
【図１】この発明を具体化した型枠を構成する成形板の
部分断面図である。FIG. 1 is a partial cross-sectional view of a molding plate that constitutes a mold embodying the present invention.
【図２】コンクリート型枠の斜視図である。FIG. 2 is a perspective view of a concrete formwork.
【図３】成形板の折り曲げ加工方法を示す斜視図であ
る。FIG. 3 is a perspective view showing a method of bending a forming plate.
【図４】成形板の折り曲げ加工方法を示す断面図であ
る。FIG. 4 is a cross-sectional view showing a method of bending a forming plate.
【図５】成形板の折り曲げ加工終了状態を示す断面図で
ある。FIG. 5 is a cross-sectional view showing a state where the shaping plate has been bent.
【図６】従来の加工方法により成形された成形板の接合
状態を示す断面図である。FIG. 6 is a cross-sectional view showing a joined state of a forming plate formed by a conventional processing method.
【図７】従来の成形板の折曲加工方法を示す断面図であ
る。FIG. 7 is a cross-sectional view showing a conventional method for bending a molded plate.
１…成形板、１ａ…Ｖ字溝、１ｂ…薄肉部、１ｃ，１ｄ
…側板、Ｃ…折曲部。1 ... Molded plate, 1a ... V-shaped groove, 1b ... Thin portion, 1c, 1d
… Side plate, C… Bent part.
Claims (1)
を形成したコンクリート型枠において、前記成形板の折
曲部の内側角部に凹状溝をプレス成形して折曲部の外側
角部の曲面を小さくしたことを特徴とするコンクリート
型枠。1. A concrete formwork in which a side plate is formed by bending an outer peripheral portion of a forming plate at a right angle, and a concave groove is press-formed in an inner corner portion of the bending portion of the forming plate to form an outer corner portion of the bending portion. Concrete formwork characterized by a smaller curved surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17939093A JP2920046B2 (en) | 1993-07-20 | 1993-07-20 | Concrete formwork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17939093A JP2920046B2 (en) | 1993-07-20 | 1993-07-20 | Concrete formwork |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0734657A true JPH0734657A (en) | 1995-02-03 |
| JP2920046B2 JP2920046B2 (en) | 1999-07-19 |
Family
ID=16065029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17939093A Expired - Lifetime JP2920046B2 (en) | 1993-07-20 | 1993-07-20 | Concrete formwork |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2920046B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100805192B1 (en) * | 2006-06-22 | 2008-02-21 | 임정순 | In-corner coupling implement for construction mold equipped with resisting member |
-
1993
- 1993-07-20 JP JP17939093A patent/JP2920046B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100805192B1 (en) * | 2006-06-22 | 2008-02-21 | 임정순 | In-corner coupling implement for construction mold equipped with resisting member |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2920046B2 (en) | 1999-07-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110107078A (en) | Beam column built from concrete pours framed and its installation method | |
| JPH0734657A (en) | Concrete formwork | |
| JPH0734658A (en) | Concrete formwork | |
| EP0838279A1 (en) | Press die formed of cement-based composition and method of manufacturing the same | |
| JPH0671379A (en) | Manufacture of metallic mold having complex curved surface | |
| JPH052410B2 (en) | ||
| JP3790985B2 (en) | Metal frame forming method and forming apparatus | |
| JP2546308B2 (en) | Press molding method | |
| JP2001026933A (en) | Extremely thin metal form panel, form using it and construction method of foundation | |
| JP2595018Y2 (en) | Lap joint type | |
| JPS5829259Y2 (en) | Connection structure of shape material | |
| JP2002346663A (en) | Method for manufacturing press die | |
| JPS6222629Y2 (en) | ||
| JPS6332293Y2 (en) | ||
| JPH09317173A (en) | Corner u-shaped side ditch adjustable form and side ditch cover adjustable form | |
| JPS6135613Y2 (en) | ||
| JPH0532250Y2 (en) | ||
| JPH0110195Y2 (en) | ||
| JPS6332292Y2 (en) | ||
| JPH0543967Y2 (en) | ||
| JPS6217580Y2 (en) | ||
| JPH034623Y2 (en) | ||
| JPS6021344Y2 (en) | bicycle frame | |
| JPH0593280U (en) | Furniture handles | |
| JPS6319423Y2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080423 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110423 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110423 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 15 Free format text: PAYMENT UNTIL: 20140423 |
|
| EXPY | Cancellation because of completion of term |