JP2957644B2 - Culvert block manufacturing method - Google Patents
Culvert block manufacturing methodInfo
- Publication number
- JP2957644B2 JP2957644B2 JP16497090A JP16497090A JP2957644B2 JP 2957644 B2 JP2957644 B2 JP 2957644B2 JP 16497090 A JP16497090 A JP 16497090A JP 16497090 A JP16497090 A JP 16497090A JP 2957644 B2 JP2957644 B2 JP 2957644B2
- Authority
- JP
- Japan
- Prior art keywords
- core
- culvert
- formwork
- hole forming
- manufacturing
- 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
Landscapes
- Moulds, Cores, Or Mandrels (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
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二次製品製造工場における、上
面に雨水流入孔を設けた暗渠ブロックの製造方法に関す
る。Description: TECHNICAL FIELD The present invention relates to a method for manufacturing a culvert block provided with a rainwater inflow hole on an upper surface in a concrete secondary product manufacturing plant.
(従来技術) 順不同であるが、従来技術の暗渠ブロック製造法を第
7図を用いて説明する。a図は、脱型前の図で型枠内に
養生の終った暗渠ブロックB(以下暗渠Bと称す)が入
った状態を示し、脱型するためには、先ず前方妻板20を
開いた後、左右の側板30,30を開き、b図の、後方妻板2
0′と下部中子50′間のロックを開放し、上部中子50の
幅を縮小し摺動させて引き抜き、次にc図のように下部
中子50′の幅を縮小して引き抜き、暗渠Bをd図の矢印
方向へ吊り上げて製造ライン外へ取り出し脱型工程を終
了する。また、コンクリート打設時には、下部中子50′
を後部妻板20′に取り付けてロックし、次に上部中子50
を下部中子50′上に摺動させて取り付け、両中子を規定
寸法に拡幅して、前方から中子に鉄筋金網を被せ、孔成
型ピンを型枠に取付けた後、両側板30,30と妻板20を閉
じて、型枠上面の開放部からコンクリートを打設する。
U字溝ブロック製造(中子が型枠底面部に固着、上面か
ら打設し、上面方向へ脱型する。)に比較すると、作業
が煩雑で多数の作業員と所要時間を要し、著しく生産効
率が悪かった。(Prior Art) A method of manufacturing a culvert block according to the prior art will be described with reference to FIG. Fig. a shows a state before curing, in which a cured culvert block B (hereinafter referred to as culvert B) is contained in a form. In order to remove the mold, first open the front end plate 20. , Open the left and right side plates 30 and 30 and
The lock between the 0 'and the lower core 50' is released, the width of the upper core 50 is reduced, the sliding is performed, and then the lower core 50 'is reduced as shown in FIG. The culvert B is lifted up in the direction of the arrow in Fig. D, taken out of the production line, and the demolding process is completed. When casting concrete, lower core 50 '
Is attached to the rear end plate 20 'and locked, and then the upper core 50
Is mounted on the lower core 50 'by sliding it, the cores are widened to the specified dimensions, the core is covered with a reinforcing wire mesh from the front, and the hole forming pins are attached to the formwork. 30 and the slab 20 are closed, and concrete is poured from the open part on the top of the formwork.
Compared with the production of U-shaped groove block (the core is fixed to the bottom of the formwork, it is driven from the top, and the mold is removed in the direction of the top.) Production efficiency was poor.
(発明が解決しようとする問題点) 本発明は従来技術の欠点を排除し、上面に雨水流入孔
を設けた暗渠の生産効率を、一般U字溝ブロック並に改
善する暗渠ブロック製造法を提供し、産業の発展に寄与
することを目的とする。(Problems to be Solved by the Invention) The present invention eliminates the drawbacks of the prior art and provides a method of manufacturing a culvert block in which the production efficiency of a culvert having a rainwater inflow hole on the upper surface is improved to the level of a general U-shaped groove block. And contribute to industrial development.
(問題点を解決するための手段) 上記目的を達成するため、本発明は、底面部周辺に前
後の妻板左右の側板を開閉自在に蝶着し、該後方妻板に
突設した中子支持梁で断面寸法伸縮可能な中子を支持
し、前記底面部に引込機構を介在させた孔成型ピンを設
けた型枠の、上面開口部からコンクリートを打設し、養
生後前記前方妻板左右側板を開き、前記孔成型ピンを底
面部に引込めると共に、前記中子断面を縮小し、該中子
を型枠内に残したまま、暗渠ブロックを前方へ抜き取り
脱型する、ことを特徴とする暗渠ブロック製造法であ
る。(Means for Solving the Problems) In order to achieve the above object, the present invention relates to a core supporting beam which is hinged around a bottom portion so as to be freely openable and closable on left and right side plates of front and rear end plates and protrudes from the rear end plate. Support the core that can expand and contract in cross-sectional dimensions, cast concrete from the top opening of the formwork provided with a hole forming pin with a drawing mechanism interposed on the bottom part, and after curing, the front side plate left and right side plates Opening, retracting the hole forming pin to the bottom portion, reducing the core section, extracting the culvert block forward and removing the culvert while leaving the core in the formwork, and removing the culvert. It is a block manufacturing method.
(作用) 本発明の暗渠ブロック製造法によれば、上面に雨水流
入孔を設けた暗渠の製造時、毎回脱型(型枠から製品を
取出す)の度に、分割した2個の中子を型枠から抜き取
って運搬する工程と、打設(コンクリートを打込む)の
度に2個の中子を運搬し型枠に組み付ける煩雑な工程が
不要になり、中子自体を型枠内側に残したまま、暗渠を
前方へ脱型できる作用があり、鉄筋金網の装着後に孔成
型ピンを上昇させ、脱型時には孔成型ピンが底面部に引
込み(下降)可能なため、生産効率を飛躍的に向上させ
る作用がある。(Operation) According to the culvert block manufacturing method of the present invention, when manufacturing a culvert having a rainwater inflow hole on the upper surface, the divided two cores are removed each time the culvert is removed (product is taken out from the formwork). The process of extracting and transporting from the formwork and the complicated process of transporting and assembling two cores to the formwork every time the concrete is poured in is eliminated, leaving the core itself inside the formwork. It has the function of removing the culvert to the front, leaving the hole forming pin raised after the reinforcing wire mesh is attached, and the hole forming pin can be pulled down (down) to the bottom part when removing the mold, dramatically increasing production efficiency. Has the effect of improving.
(実施例) 第1図は、本発明の暗渠ブロック製造法の概略を示す
斜視図である。a図は構成の一部である型枠Kの斜視図
であり、前方妻板20、左右側板30は開いて示している。
台枠5に張着した底面部10周辺に前後の妻板20,20′と
左右の側板30を開閉目在に蝶着し、該後方妻板30′に突
設した中子支持梁40(図中破線で示す)で断面寸法伸縮
可能な中子50を支持している。b図は打設工程を示す斜
視図であり、型枠Kの上面開口部K′からコンクリート
Cを打設する、図中のMは中子の外周に装着した鉄筋金
網である。c図は暗渠Bの脱型工程を示す斜視図であ
り、コンクリートの養生後前記前方妻板20左右側板30を
開き前記中子50断面を伸縮機構100で縮小し、該中子50
を型枠K内に残したまま、脱型機のバキュームパットに
より吸着し、前方へ脱型搬出する暗渠ブロック製造法を
示している。なお、図中の型枠の一部構成として本出願
人の平成2年実用新案登録願第17032号(暗渠ブロック
製造用型枠)の中子と伸縮機構を用い、型枠底面部には
引込機構付きの孔成型ピンを設けている。(Embodiment) FIG. 1 is a perspective view schematically showing a method of manufacturing a culvert block according to the present invention. FIG. 1A is a perspective view of a formwork K which is a part of the configuration, in which a front end plate 20 and left and right side plates 30 are shown open.
The front and rear end plates 20, 20 'and the left and right side plates 30 are hinged around the bottom portion 10 attached to the underframe 5 in an open / closed manner, and a core support beam 40 projecting from the rear end plate 30' (see FIG. The core 50, which can be expanded and contracted in cross section, is supported by a broken line (shown by a broken line). Fig. b is a perspective view showing a casting process, in which concrete C is cast from the upper surface opening K 'of the formwork K. In the drawing, M is a reinforcing wire mesh attached to the outer periphery of the core. FIG. 3C is a perspective view showing a step of removing the culvert B. After curing of the concrete, the front end plate 20 and the left and right side plates 30 are opened, and the cross section of the core 50 is reduced by an expansion mechanism 100.
Shows a method of manufacturing a culvert block in which a vacuum pad of a demolding machine adsorbs while leaving in a formwork K, and is demolded and carried forward. In addition, as a part of the form in the figure, the core of the present applicant's utility model registration application No. 17032 (former for manufacturing a culvert block) and a telescopic mechanism are used. A hole forming pin with a mechanism is provided.
第2図は、本発明の中子50と伸縮機構100の構成を示
す斜視図(中子断面縮小時)であり、一部を切欠き示し
ている。前記後方の妻板20′に突設して設けた中子支持
梁40によって、内側上面から支持された中子50は、C型
断面の鋼板等弾性体で作り、右側長手方向に段差なく合
致する上下接合部を設け、左側は補強リブ55等を配設し
て剛性を高め右側は弾性範囲内の弾性を残し、該接合部
の上側接合部55,下側接合部56の内側に上側連結金具5
5′,下側連結金具56′を設ける。該中子左側には複数
の軸受105を設け、左ねじL・右ねじRを螺刻した2組
のスクリュー軸110に各ナット111,112を螺嵌させ、前後
のスクリュー軸を直列に接続して前記軸受105で支承
し、4個の各ナットの上下に8枚の各リンク130の一端
の孔部を軸着し、他端の孔部は交差ジョイント140の上
下に集合させて軸着し、該交差ジョイントの水平軸部14
5にはベルクランク150の左端孔部を軸着し、該ベルクラ
ンクの中央孔部を前記下側連結金具56′に、上端孔部15
5を前記上側連結金具55′にそれぞれ連結する。また、
C型断面の中子50は発明の思想を逸脱しない範囲で、一
部に耐熱性の高分子樹脂・ゴム等を使用することも可能
である。FIG. 2 is a perspective view (when the cross section of the core is reduced) showing the configuration of the core 50 and the extension mechanism 100 of the present invention, and a part thereof is cut away. The core 50 supported from the inner upper surface by the core supporting beam 40 protrudingly provided on the rear end plate 20 'is made of an elastic body such as a steel plate having a C-shaped cross section and conforms to the right longitudinal direction without a step. Upper and lower joints are provided, reinforcing ribs 55 etc. are provided on the left side to increase rigidity and the right side retains elasticity within the elastic range, and upper connecting metal fittings are provided inside the upper joint 55 and lower joint 56 of the joints. Five
5 ', lower connection fitting 56' is provided. A plurality of bearings 105 are provided on the left side of the core, nuts 111 and 112 are screwed into two sets of screw shafts 110 in which a left screw L and a right screw R are threaded, and the front and rear screw shafts are connected in series. The bearings 105 are supported, and the holes at one end of each of the eight links 130 are axially mounted on the upper and lower sides of each of the four nuts, and the holes at the other end are assembled at the upper and lower sides of the cross joint 140 and axially mounted. Horizontal axis of cross joint 14
5, the left end hole of the bell crank 150 is axially mounted, and the center hole of the bell crank is attached to the lower connection fitting 56 'and the upper end hole 15
5 are respectively connected to the upper connection fittings 55 '. Also,
As the core 50 of the C-shaped cross section, a heat-resistant polymer resin, rubber, or the like can be partially used without departing from the spirit of the invention.
第3図は、中子の伸縮機構の伸張時・縮小時を断面で
示した説明図である。前記の構成によりa図のスクリュ
ー軸110を左回転すれば螺合した各ナットの問隔は開
き、各ナットに軸着した各リンクは交差ジョイント140
を左方向に移動させ、ベルクランク150は上側連結部5
5′の軸着部を支点として左回転し始め下側連結部56′
は引き寄せられ、次第に図中矢印方向へ上昇しながら中
子右下側を変形縮小させ、次に前記ベルクランク150の
上側接続部(上側接合部)を引き寄せ、最後は、b図の
ように中子の下側接合部は上側接合部の内側に上昇して
高さ・幅を縮小する。なお、b図中の二点鎖線は縮小前
の中子寸法(形成された暗渠の中空部輪郭線)であり空
隙ができるため容易に脱型でき、上側接合部が下側接合
部に被さる状態になるため、脱型時にコンクリートの微
粉等が中子内部に入らず、伸縮機構部・接合部等のメン
テナンス容易・耐久性向上等に有利である。型枠組付時
には、スクリュー軸を右回転すれば、中子は元の正規寸
法(a図)に復元する。FIG. 3 is an explanatory diagram showing a cross section of the core when the telescopic mechanism is extended and contracted. By rotating the screw shaft 110 of FIG. 1A counterclockwise by the above-described configuration, the gap between the screwed nuts is opened, and the links that are axially attached to the nuts are cross joints 140.
To the left, and the bell crank 150
Starting to rotate counterclockwise with the 5 'shaft attachment point as the fulcrum, the lower connection part 56'
Is gradually pulled up and deformed and reduced at the lower right side of the core while ascending in the direction of the arrow in the figure, and then the upper connecting portion (upper joint) of the bell crank 150 is drawn. Finally, as shown in FIG. The lower joint of the child rises inside the upper joint to reduce the height and width. The two-dot chain line in Fig. B is the core size (contour line of the formed culvert) before reduction, and it can be easily removed from the mold because there is a gap, and the upper joint covers the lower joint. Therefore, fine powder and the like of concrete do not enter the core at the time of demolding, which is advantageous for easy maintenance and improvement of durability of the expansion and contraction mechanism and the joint. At the time of assembling the formwork, if the screw shaft is rotated clockwise, the core is restored to its original regular size (FIG. A).
第4図は、本発明の孔成型ピンの引込機構200の概略
を示す斜視図である。前記底面部10には任意形状・任意
数の貫通孔h(雨水孔に対応する。)を設け、該貫通孔
に合致する孔成型ピンを設け、左ねじL、右ねじRを螺
刻した2組のスクリュー軸210を直列に連結し、台枠5
の軸受部5bで支承した該スクリュー軸210の各左ねじ部
・右ねじ部に螺嵌させた各ナット211,212側面部に、各
リンク240の下孔部を軸着し上孔部は集合させて、前記
孔成型ピン220(硬質ゴム・合成樹脂または金属製等)
を立設した取付部材260の側面部に軸着する。上記の構
成により、スクリュー軸210を回動すれば、螺合した各
ナットの間隔は伸縮し、軸着した各リンクを介して取付
部材に固着した各孔成型ピン220は、前記底面部の貫通
孔を挿通して平行に昇降する。なお、Gは取付部材の昇
降ガイドである。FIG. 4 is a perspective view showing the outline of the hole forming pin retraction mechanism 200 of the present invention. The bottom portion 10 is provided with an arbitrary shape and an arbitrary number of through holes h (corresponding to rainwater holes), provided with hole forming pins corresponding to the through holes, and threaded a left screw L and a right screw R. A pair of screw shafts 210 are connected in series,
The lower hole of each link 240 is axially attached to the side surface of each nut 211, 212 screwed to each of the left and right threaded portions of the screw shaft 210 supported by the bearing portion 5b, and the upper hole is assembled. , The hole forming pin 220 (made of hard rubber, synthetic resin or metal, etc.)
Is axially mounted on the side surface of the mounting member 260 having the upright. With the above configuration, if the screw shaft 210 is rotated, the interval between the screwed nuts expands and contracts, and each hole forming pin 220 fixed to the mounting member via each shaft-attached link passes through the bottom portion. It goes up and down in parallel through the hole. G is a lifting guide for the mounting member.
第5図は、雨水流入孔H付きの暗渠Bの使用時の(製
造後反転させる)斜視図である。FIG. 5 is a perspective view of the culvert B having the rainwater inflow hole H when the culvert B is used (turned over after manufacturing).
第6図は、本発明の工程説明図である。a図は打設工
程を示す図で、正規寸法に伸張した中子50の外周に鉄筋
金網Mを装着し、引込機構200を右回転して孔成型ピン2
20を上昇し、左右側板30と前方妻板20を閉じ、既知の締
付けボルト25を締付けて型枠全体を緊締し、上面開口部
からコンクリートを投入した後、コンクリートの硬化
(水和反応)を促進するため、蒸気等による養生を行な
う。b図は養生後の脱型工程を示す図で、前記既知の締
付けボルトを緩め前方妻板20と左右側板30を20〜30゜開
き、引込機構200を左回転して孔成型ピン220を引込み、
中子の伸縮機構100を左回転させて中子50の断面を縮小
させて、暗渠の上面(使用時の底面)を脱型機Vのバキ
ュームパット等で吸着し、暗渠をわずかに上昇させ前方
へ取り出す脱型工程を示している。FIG. 6 is a process explanatory view of the present invention. Fig. a shows a casting process, in which a reinforcing wire mesh M is attached to the outer periphery of a core 50 stretched to a regular size, and the drawing mechanism 200 is rotated clockwise to form a hole forming pin 2.
Ascends 20 and closes the left and right side plates 30 and the front end plate 20, tightens the known tightening bolts 25 to tighten the entire formwork, pours concrete through the upper opening, and accelerates the hardening (hydration reaction) of the concrete In order to do this, cure with steam or the like. Fig. b is a view showing a demolding process after curing, loosening the known fastening bolt, opening the front end plate 20 and the left and right side plates 30 by 20 to 30 °, rotating the retraction mechanism 200 counterclockwise to retract the hole forming pin 220,
Rotating the telescopic mechanism 100 of the core counterclockwise to reduce the cross section of the core 50, the upper surface of the culvert (the bottom surface during use) is sucked by the vacuum pad of the demolding machine V, etc. 4 shows a demolding step for removing the mold.
(発明の効果) 以上詳述したように、本発明によれば、雨水流入孔付
きの暗渠製造に際し一番手間と時間のかかる、中子及び
孔成型ピンの脱着工程そのものが不要になり、型枠を自
動化ライン上セットしたまま、暗渠の製造が行なえるた
め、中子の運搬通路・中子置場も不要となり、作業の安
全性・生産効率が向上し、最近の作業員不足も解消さ
れ、U字溝の自動化ライン(約3〜4分毎に打設・脱型
のワンサイクル、当社)に混在させて短時間で製造でき
る等、産業の発展に寄与する大きな効果がある。(Effects of the Invention) As described in detail above, according to the present invention, the process of attaching and detaching the core and the hole forming pin itself, which is the most troublesome and time-consuming in manufacturing a culvert with a rainwater inflow hole, becomes unnecessary, and Since the culvert can be manufactured while the frame is set on the automation line, the transport path of the core and the core storage area are not required, work safety and production efficiency are improved, and the recent shortage of workers is eliminated, It has a great effect of contributing to industrial development, such as being able to be manufactured in a short time by being mixed with an automated line for U-shaped grooves (one cycle of casting and demolding every 3-4 minutes, our company).
第1図は、本発明の暗渠ブロック製造法の概略を示す斜
視図。第2図は、本発明構成の一部である中子と伸縮機
構の構成を示す一部切欠斜視図。第3図は、中子の伸張
時・伸縮時を断面で示した説明図。第4図は、本発明の
孔成型ピンの引込機構の構成を示す一部切欠斜視図。第
5図は、雨水流入孔付暗渠の斜視図。第6図は、本明の
暗渠ブロック製造法の各工程説明図。第7図は、従来技
術の各工程説明図である。 B……暗渠ブロック、K……型枠、V……脱型機、10…
…底面部、20……前方妻板、20′……後方妻板、40……
中子支持梁、50……中子、100……伸縮機構、200……引
込機構、220……孔成型ピン。FIG. 1 is a perspective view schematically showing a method of manufacturing a culvert block according to the present invention. FIG. 2 is a partially cutaway perspective view showing a configuration of a core and a telescopic mechanism which are a part of the configuration of the present invention. FIG. 3 is an explanatory view showing a cross section of the core at the time of expansion and contraction. FIG. 4 is a partially cutaway perspective view showing a configuration of a retraction mechanism for a hole forming pin of the present invention. FIG. 5 is a perspective view of a culvert with a rainwater inflow hole. FIG. 6 is an explanatory view of each step of the method of manufacturing a culvert block according to the present invention. FIG. 7 is an explanatory view of each step of the prior art. B ... Culvert block, K ... Form, V ... Demolder, 10 ...
… Bottom part, 20… Front wife, 20 ′ …… Back wife, 40…
Core support beam, 50 ... Core, 100 ... Expansion mechanism, 200 ... Retraction mechanism, 220 ... Hole forming pin.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 FI E01F 5/00 E01F 5/00 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code FI E01F 5/00 E01F 5/00
Claims (1)
自在に蝶着し、該後方妻板に突設した中子支持梁で断面
寸法伸縮可能な中子を支持し、前記底面部に引込機構を
介在させた孔成型ピンを設けた型枠の、上面開口部から
コンクリートを打設し、養生後前記前方妻板左右側板を
開き、前記孔成型ピンを底面部に引込めると共に、前記
中子断面を縮小し、該中子を型枠内に残したまま、暗渠
ブロックを前方へ抜き取り脱型する、ことを特徴とする
暗渠ブロック製造法。A left and right side plate on the front and rear end plates is hinged around the bottom surface so as to be openable and closable, and a core supporting beam projecting from the rear end plate supports a core whose cross-sectional dimension can be expanded and contracted. Concrete is poured from the upper surface opening of the formwork provided with the hole forming pin with the retraction mechanism interposed, and after curing, the front side plate left and right side plates are opened, and the hole forming pin is retracted into the bottom portion, and A method of manufacturing an underdrain block, comprising reducing a cross section of the underdrain, removing the underdrain block forward while leaving the core in the formwork, and removing the undermold.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16497090A JP2957644B2 (en) | 1990-06-22 | 1990-06-22 | Culvert block manufacturing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16497090A JP2957644B2 (en) | 1990-06-22 | 1990-06-22 | Culvert block manufacturing method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0453706A JPH0453706A (en) | 1992-02-21 |
JP2957644B2 true JP2957644B2 (en) | 1999-10-06 |
Family
ID=15803342
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16497090A Expired - Lifetime JP2957644B2 (en) | 1990-06-22 | 1990-06-22 | Culvert block manufacturing method |
Country Status (1)
Country | Link |
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JP (1) | JP2957644B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011088342A (en) * | 2009-10-22 | 2011-05-06 | Fortec:Kk | Form apparatus for molding concrete product |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4623514B2 (en) * | 2005-11-28 | 2011-02-02 | 後藤コンクリート工業株式会社 | Side groove mold apparatus and side groove block formed by the mold apparatus |
CN111906921B (en) * | 2019-05-08 | 2023-02-28 | 姚井祥 | One-step pouring forming device for tubular members for buildings |
-
1990
- 1990-06-22 JP JP16497090A patent/JP2957644B2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011088342A (en) * | 2009-10-22 | 2011-05-06 | Fortec:Kk | Form apparatus for molding concrete product |
Also Published As
Publication number | Publication date |
---|---|
JPH0453706A (en) | 1992-02-21 |
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