JPH0698617B2 - Method for manufacturing concrete aperture plate - Google Patents
Method for manufacturing concrete aperture plateInfo
- Publication number
- JPH0698617B2 JPH0698617B2 JP9938686A JP9938686A JPH0698617B2 JP H0698617 B2 JPH0698617 B2 JP H0698617B2 JP 9938686 A JP9938686 A JP 9938686A JP 9938686 A JP9938686 A JP 9938686A JP H0698617 B2 JPH0698617 B2 JP H0698617B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- side frame
- frame
- inner mold
- mortar
- 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 - Lifetime
Links
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、コンクリート製開口版の製造方法に関する。TECHNICAL FIELD The present invention relates to a method for manufacturing an opening slab made of concrete.
（従来の技術） 従来、コンクリート製開口版の製造方法として本発明者
によつて提案した特開昭60-248322号公報に記載された
方法がある。この方法は、第３図に示すように組立てら
れた側枠２と内型枠３とより囲まれた空間部16へモルタ
ルスラリーを充填する。該モルタルスラリーが凝固後、
第４図に示す如く、内型枠３の底板５への押圧を解除
し、保持枠4,4の係止部11を内型枠３の係止孔７に係止
させて内型枠３を保持枠4,4に固定し、ついで、固定具
６′による側枠２の保持枠4,4の固定を解除したのち、
保持枠4,4の各フツク10にシリンダーを掛けて保持枠4,4
と内型枠３を吊り上げることで内型枠３の脱型を行う。
その後、第４図の想像線で示すように側枠２（2a,2b）
を矢印方向に倒して開口版９を取り出す方法である。(Prior Art) Conventionally, there is a method described in Japanese Patent Application Laid-Open No. 60-248322 proposed by the present inventor as a method for manufacturing a concrete opening slab. In this method, the mortar slurry is filled in the space 16 surrounded by the side frame 2 and the inner mold 3 assembled as shown in FIG. After the mortar slurry has solidified,
As shown in FIG. 4, the pressure applied to the bottom plate 5 of the inner mold 3 is released, and the locking portions 11 of the holding frames 4 and 4 are locked in the locking holes 7 of the inner mold 3 to cause the inner mold 3 to move. After fixing the holding frames 4, 4 to the holding frames 4, 4 and then releasing the holding frames 4, 4 of the side frame 2 by the fixing tool 6 ',
Cylinder is applied to each hook 10 of the holding frames 4, 4 to hold the holding frames 4, 4
The inner mold 3 is demolded by lifting the inner mold 3.
After that, as shown by the imaginary line in FIG. 4, side frames 2 (2a, 2b)
Is tilted in the direction of the arrow to take out the aperture plate 9.
（発明が解決しようとする問題点） しかし、この方法は、内型枠３と側枠２との脱型を別々
に実施している。また、側枠２の側面板2aと端面板2bを
別々に脱型するため生産性がよくない。また、保持枠４
を吊り上げた時、内型枠の左右への振れが発生し易く、
コンクリートの欠損部の発生原因となる等の問題があ
る。(Problems to be Solved by the Invention) However, in this method, the inner mold 3 and the side frame 2 are separately demolded. Further, the side plate 2a and the end plate 2b of the side frame 2 are separately released from the mold, so that the productivity is not good. Also, the holding frame 4
When hoisting, it is easy for the inner formwork to swing to the left and right,
There are problems such as the occurrence of concrete defects.
本発明は、上記の如き状況にあるコンクリート製開口版
の製造方法に関して種々検討を行つた結果、内型枠と側
枠との脱型を同時に行うことにより、上記問題点のない
良品質のコンクリート製開口版を生産性よく製造できる
ことを見出し、本発明を完成した。The present invention, as a result of various studies on a method for manufacturing a concrete opening slab in the above situation, by simultaneously performing the demolding of the inner mold and the side frame, good quality concrete without the above problems The present invention has been completed by finding that an aperture plate can be produced with high productivity.
（問題点を解決するための手段） 即ち、本発明は、開口部形成用内型枠、側枠、底板及び
保持枠より構成された型枠を用い、モルタルの該型枠へ
の注入及び該モルタルの半硬化後の脱型を行うことによ
り、コンクリート製開口版の製造に際し、内型枠と側枠
の脱型を同時に行うコンクリート製開口部の製造方法で
ある。(Means for Solving Problems) That is, according to the present invention, a mold composed of an inner mold for forming an opening, a side frame, a bottom plate and a holding frame is used, and injection and mortar injection into the mold are performed. It is a method for manufacturing a concrete opening in which the inner mold and the side frame are simultaneously demolded when the concrete opening slab is manufactured by demolding the mortar after semi-curing.
以下、第１図及び第２図により本発明を説明する。The present invention will be described below with reference to FIGS. 1 and 2.
第１図は、本発明に用いる型枠の一実施態様の斜視図、
第２図は、半硬化モルタルブロックから側枠と内型枠を
同時に脱型した直後の斜視図であり、該第1,2図におい
て、１は型枠、２は側枠、３は内型枠、４は保持枠、５
は底板、８は支持部、９はコンクリート製開口版を示
す。FIG. 1 is a perspective view of an embodiment of a mold used in the present invention,
FIG. 2 is a perspective view immediately after the side frame and the inner mold are simultaneously removed from the semi-cured mortar block. In FIGS. 1 and 2, 1 is a mold, 2 is a side frame, and 3 is an inner mold. Frame 4, reference frame 5
Is a bottom plate, 8 is a support part, and 9 is an opening slab made of concrete.
第１図に示す如く型枠を組立てた後、内型枠３の外側、
側枠２の内側及び底板５の上面に離型剤の塗布と、所定
の鉄筋の配置を行う。その後、内型枠３と側枠２とに囲
まれた空間部16にモルタル（例えば水とセメント等の固
形物の混合比が70:100）を注入し、モルタルが半硬化し
た時点で、側面板2aにワイヤー付フツク21を取りつけ、
これをクレーン（図示せず）で引き上げることにより第
２図に示す如く内型枠３と側枠２を同時に引上げて脱型
を行う。この際、側枠２に設けられたガイドを棒状案内
物19に沿わせて脱型を行うと、内型枠３と側枠２がより
容易に振れを生ずることなく脱型できる。また、本発明
において、内型枠及び側枠は、引き抜きを容易にするた
めの１〜５°の抜きテーパーが設けられたものが好まし
く、１〜３°の抜きテーパーが設けられたものがより好
ましい。After assembling the formwork as shown in FIG. 1, outside the inner formwork 3,
A mold release agent is applied to the inner side of the side frame 2 and the upper surface of the bottom plate 5, and a predetermined reinforcing bar is arranged. After that, mortar (for example, the mixing ratio of water and solids such as cement is 70: 100) is injected into the space 16 surrounded by the inner mold 3 and the side frame 2, and when the mortar is semi-cured, the side Attach the hook with wire 21 to the face plate 2a,
By pulling this up with a crane (not shown), the inner mold 3 and the side frame 2 are simultaneously lifted as shown in FIG. At this time, if the guide provided on the side frame 2 is demolded along the rod-shaped guide article 19, the inner frame 3 and the side frame 2 can be demolded more easily without swinging. Further, in the present invention, it is preferable that the inner frame and the side frame are provided with a draft taper of 1 to 5 ° for facilitating the pulling out, and more preferably a draft taper of 1 to 3 ° is provided. preferable.
（発明の効果） 本発明によれば、内型枠と側枠の分離及び組立てが、開
口版１枚の製造毎に実施する必要もなく、底板への配置
も容易となり、生産性の優れたプロセスであり、また、
欠損等のない良品質の開口版を得ることができる。(Effects of the Invention) According to the present invention, it is not necessary to separate and assemble the inner formwork and the side frame for each production of one opening stencil, and the arrangement on the bottom plate is easy, resulting in excellent productivity. Process, and also
It is possible to obtain an opening plate of good quality without defects.
（実施例） 以下、実施例により本発明を詳述する。(Examples) Hereinafter, the present invention will be described in detail with reference to Examples.
側枠として、内法寸法が4.0m長さ×1.8m巾×0.2m深さ、
内型枠として外法寸法が2.0m長さ×1.2m巾×0.2m深さの
ものを用い、第１図に示す如く組立てゝ型枠とした。つ
いで、この型枠の底板５上を掃除したのち、鉱物油を主
体として離型剤を内型枠、側枠及び底板に塗布し、さら
に、鉄筋を主体とし防錆処理が施されたモチ網状の鉄筋
カゴを、底板５上に置いた。その後、ポルトランドセメ
ント30重量部、生石灰の微粉末８重量部、硅石の微粉末
44重量部、回収屑18重量部及び水70重量部からなる混合
物にアルミ微粉末0.07重量部を加えて得られたモルタル
を型枠に注入し、発泡、半硬化させた。As a side frame, the inner dimensions are 4.0m length x 1.8m width x 0.2m depth,
As the inner form, the outer form of which is 2.0 m length × 1.2 m width × 0.2 m depth was used, and the form was assembled as shown in FIG. Then, after cleaning the bottom plate 5 of this formwork, a release agent composed mainly of mineral oil was applied to the inner formwork, side frames and the bottom plate, and further, rust-prevented mochi-like mesh mainly composed of reinforcing bars. The reinforced steel basket of the above was placed on the bottom plate 5. After that, 30 parts by weight of Portland cement, 8 parts by weight of quicklime fine powder, fine silica powder
Mortar obtained by adding 0.07 part by weight of fine aluminum powder to a mixture of 44 parts by weight, 18 parts by weight of collected waste and 70 parts by weight of water was poured into a mold, and foamed and semi-cured.
つぎに、第２図に示す如く側面板2aにワイヤー付フツク
21を取り付け、これをクレーン（図示せず）で引き上げ
ることにより、台または台車に取りつけられた棒状案内
物に沿つて、内型枠、側枠及び保持枠を引き上げ、同時
に脱型を行つた。その後、製造された開口版の欠損の有
無を確認したが、欠損を見出すことができなかつた。Next, hooks with wires are attached to the side plate 2a as shown in FIG.
By attaching 21 and pulling it up with a crane (not shown), the inner formwork, the side frame and the holding frame were pulled up along the rod-shaped guide attached to the platform or the platform, and at the same time, the mold was removed. Then, the presence or absence of a defect in the manufactured stencil was checked, but no defect could be found.
第１図は、本発明に用いられる型枠の一実施態様の斜視
図、第２図は、本発明における内型枠と側枠の同時脱型
状態の斜視図、第３図は、従来方法に用いられている型
枠の斜視図、第４図は従来方法の脱型を示す第３図A-A
線での断面図である。 １……型枠、２……側枠、2a……側面板、2b……端面
板、３……内型枠、3a……側面枠、3b……端面枠、４…
…保持枠、５……底板、6,6′……固定具、７……係止
孔、８……支持部、９……コンクリート開口版、10……
フツク、11……係止部、12……固定部、13……操作部、
14……レール、15……係止爪、16……空間部、17……ボ
ルト、18……台または台車、19……棒状案内物、20……
ガイド、21……ワイヤー付フツクを示す。FIG. 1 is a perspective view of an embodiment of a mold used in the present invention, FIG. 2 is a perspective view of the inner mold and side frames of the present invention at the same time when they are demolded, and FIG. 3 is a conventional method. Fig. 4 is a perspective view of the mold used in Fig. 4, and Fig. 4 shows the demolding of the conventional method.
It is sectional drawing in a line. 1 ... form frame, 2 ... side frame, 2a ... side plate, 2b ... end plate, 3 ... inner form, 3a ... side frame, 3b ... end frame, 4 ...
... Holding frame, 5 ... Bottom plate, 6,6 '... Fixing device, 7 ... Locking hole, 8 ... Supporting part, 9 ... Concrete opening plate, 10 ...
Hook, 11 …… Locking part, 12 …… Fixing part, 13 …… Operating part,
14 …… rail, 15 …… locking claw, 16 …… space, 17 …… bolt, 18 …… stand or truck, 19 …… bar-shaped guide, 20 ……
Guide, 21 …… Shows a hook with a wire.
Claims (1)
枠より構成された型枠を用い、モルタルの該型枠への注
入及び該モルタルの半硬化後の脱型を行うことによりコ
ンクリート製開口版の製造に際し、内型枠と側枠の脱型
を同時に行うことを特徴とするコンクリート製開口版の
製造方法1. A mold comprising an inner mold for forming an opening, a side frame, a bottom plate and a holding frame is used to perform injection of mortar into the mold and demolding of the mortar after semi-curing. A method for manufacturing a concrete opening slab, characterized in that the inner mold and the side frame are demolded at the same time when the concrete opening slab is manufactured by
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9938686A JPH0698617B2 (en) | 1986-05-01 | 1986-05-01 | Method for manufacturing concrete aperture plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9938686A JPH0698617B2 (en) | 1986-05-01 | 1986-05-01 | Method for manufacturing concrete aperture plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62256611A JPS62256611A (en) | 1987-11-09 |
| JPH0698617B2 true JPH0698617B2 (en) | 1994-12-07 |
Family
ID=14246069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9938686A Expired - Lifetime JPH0698617B2 (en) | 1986-05-01 | 1986-05-01 | Method for manufacturing concrete aperture plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0698617B2 (en) |
-
1986
- 1986-05-01 JP JP9938686A patent/JPH0698617B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62256611A (en) | 1987-11-09 |
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