JP4600261B2 - Metal foam removal frame - Google Patents

Metal foam removal frame Download PDF

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Publication number
JP4600261B2
JP4600261B2 JP2005346529A JP2005346529A JP4600261B2 JP 4600261 B2 JP4600261 B2 JP 4600261B2 JP 2005346529 A JP2005346529 A JP 2005346529A JP 2005346529 A JP2005346529 A JP 2005346529A JP 4600261 B2 JP4600261 B2 JP 4600261B2
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Prior art keywords
metal foam
metal
center
fulcrum column
rod
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JP2005346529A
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JP2007154414A (en
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勝重 真鍋
義則 住友
崇史 小島
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Sekisui House Ltd
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Sekisui House Ltd
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Description

この発明は、建物の基礎などを構築する際に使用するコンクリート基礎用の金属製の型枠であるメタルフォームをコンクリート硬化後に脱枠する時に使用するメタルフォーム脱枠棒に関する。   The present invention relates to a metal foam removing rod used when removing a metal foam, which is a metal formwork for a concrete foundation, used when constructing a foundation of a building, etc., after hardening the concrete.

メタルフォームの脱枠の仕方として、従来からは次のような手段が用いられている。その第1の手段は、図5に示すように、メタルフォーム11の頂部の横桟10をハンマー15などで叩いて脱枠する手段である。これによって、硬化したコンクリートである基礎躯体14に付着している板材のコンクリート側面がその上方から順に基礎躯体14から剥されて脱枠される。第2の手段は、図6に示すように、メタルフォーム11の裏側にあらかじめ取付けられているUピン16に長棒17を引掛けて長棒17の下端を地面で支え長棒17の上方を手でメタルフォーム11と反対側へ倒すようにしてテコの要領で脱枠する手段である。これによって、メタルフォーム11のコンクリート側面が基礎躯体14からほぼ同時に剥されて脱枠される。第3の手段は、特許文献1に示されるように、型枠の裏側にあらかじめ型枠解体用梃棒を内蔵させておいて、これを用いて型枠をコンクリートから取外す手段である。   Conventionally, the following means have been used as a method for removing the metal foam. The first means is means for removing the frame by hitting the cross rail 10 at the top of the metal foam 11 with a hammer 15 or the like, as shown in FIG. Thereby, the concrete side surface of the plate material adhering to the foundation casing 14 which is hardened concrete is peeled off from the foundation casing 14 in order from the upper side and deframed. As shown in FIG. 6, the second means is that a long rod 17 is hooked on a U pin 16 attached in advance to the back side of the metal foam 11 to support the lower end of the long rod 17 on the ground and above the long rod 17. It is a means to remove the frame in the manner of a lever by tilting it to the opposite side to the metal form 11 by hand. As a result, the concrete side surface of the metal foam 11 is peeled off from the foundation housing 14 almost simultaneously and removed. As shown in Patent Document 1, the third means is a means for incorporating a mold form demolition stick in advance on the back side of the formwork and using this to remove the formwork from the concrete.

特開2003−41773号公報JP 2003-41773 A

しかしながら、前記第1の手段によるメタルフォーム11の脱枠の仕方では、ハンマー15で強く横桟10等を叩くために、メタルフォーム11の変形が生じたり、ハンマー15の打ち損じにより基礎躯体14を損傷する可能性も生じる問題点がある。又、前記第2の手段によるメタルフォーム11の脱枠の仕方では、長棒17によるテコの要領でUピン16に強力な力が作用することから、メタルフォーム11が変形したり、破損するなど、メタルフォーム11の使用寿命が短くなる問題点があると共に、メタルフォーム11のUピン16部分から剥すことになるので、外れにくいという問題点がある。更に、前記第3の手段によるメタルフォーム11の脱枠の仕方では、メタルフォーム11の裏側にあらかじめ型枠解体用梃棒を内蔵させておかなければならないので、製作費が高くなるという問題点がある。又、この型枠解体用梃棒を使用する場合でも、メタルフォームの変形や破損が生じて使用寿命が短くなるという問題点がある。
この発明は上記のような種々の課題を解決することを目的としてなされたものである。
However, in the method of removing the frame of the metal foam 11 by the first means, since the hammer 15 strongly hits the cross rail 10 or the like, the metal foam 11 is deformed or the foundation frame 14 is removed by the hammer 15 being damaged. There is also a problem that can cause damage. Further, in the method of removing the metal foam 11 by the second means, since a strong force acts on the U pin 16 in the manner of the lever 17 by the long bar 17, the metal foam 11 is deformed or damaged. There are problems that the service life of the metal foam 11 is shortened and that the metal foam 11 is peeled off from the U pin 16 portion of the metal foam 11, so that it is difficult to come off. Further, in the method of removing the metal form 11 by the third means, the mold demolition club must be built in the back side of the metal form 11 in advance, so that the production cost becomes high. is there. Further, even when this formwork dismantling scissors is used, there is a problem that the metal foam is deformed or broken and the service life is shortened.
The present invention has been made for the purpose of solving various problems as described above.

この発明の手段とするところは、所定角度で折曲している折曲杆の折曲部の下方に固定した支点柱と、前記折曲杆の一端の下方に固定した差込みピンと、前記折曲杆の他端に前記支点柱の中心と差込みピンの中心間の距離よりも前記支点柱の中心からその先端までの距離が長い手握部を固定したメタルフォーム脱枠棒としたことにある。   The means of the present invention includes a fulcrum column fixed below a bent portion of a folding rod that is bent at a predetermined angle, an insertion pin fixed below one end of the folding rod, and the bending The metal foam unframed rod is fixed to the other end of the heel with a grip portion having a distance from the center of the fulcrum column to the tip thereof longer than the distance between the center of the fulcrum column and the center of the insertion pin.

上記手段によるこのメタルフォーム脱枠棒によると、隣接している2つのメタルフォームの一方のメタルフォームの作業用にあけられている小穴に差込みピンを挿入し、支点柱を他方のメタルフォームの横桟又は縦桟に当ててから手握部を作業者が手で持って支点柱を中心にして折曲杆の一端がメタルフォームから離れる方向に回転させるだけでよい。これによって、差込みピンを差込んでいる一方のメタルフォームが硬化したコンクリートである基礎躯体から剥れる。このとき、差込みピンの中心と支点柱の中心との距離が、支点柱の中心と握持部の先端との距離よりも小さいので、手握部の先端を手で握って回転させると、テコの原理によって少ない力で容易に差込みピンを差込んでいるメタルフォームを基礎躯体から剥すことができる。又、メタルフォームを叩いたり、引張ったりしないので、メタルフォームが変形や破損することもない。加えて、基礎躯体が損傷することも生じない。   According to this metal form removing frame rod by the above means, an insertion pin is inserted into a small hole opened for working one metal foam of two adjacent metal foams, and the fulcrum column is placed next to the other metal foam. It is only necessary that the operator holds the hand grip part by hand after touching the cross or the vertical cross and rotates one end of the folding rod away from the metal foam around the fulcrum column. As a result, one metal foam into which the insertion pin is inserted is peeled off from the foundation frame which is the hardened concrete. At this time, the distance between the center of the insertion pin and the center of the fulcrum column is smaller than the distance between the center of the fulcrum column and the tip of the gripping part. With this principle, the metal foam in which the insertion pin is inserted can be easily peeled off from the basic casing with a small force. Further, since the metal foam is not hit or pulled, the metal foam is not deformed or damaged. In addition, the foundation enclosure is not damaged.

この発明のメタルフォーム脱枠棒の最良の実施形態について以下図に基づいて説明する。図1に示すように、この実施例のメタルフォーム脱枠棒1は、折曲杆2の折曲部3の下方に固定した支点柱4と、前記折曲杆2の一端側の下方に固定した差込みピン5と、前記折曲杆2の他端に前記支点柱4の中心と差込みピン5の中心間距離Aよりも前記支点柱4の中心からその先端までの距離Bの方が長い棒状の手握部6を固定したものである。   BEST MODE FOR CARRYING OUT THE INVENTION The best mode for carrying out the metal foam removing bar according to the present invention will be described below with reference to the drawings. As shown in FIG. 1, the metal foam unframed rod 1 of this embodiment is fixed to a fulcrum column 4 fixed below a folding part 3 of a folding rod 2 and below one end side of the folding rod 2. The distance between the center of the fulcrum column 4 and the center B of the fulcrum column 4 and the tip thereof is longer than the distance A between the center of the fulcrum column 4 and the center of the insertion pin 5 at the other end of the bending rod 2. The hand grip 6 is fixed.

前記折曲杆2は金属製の板材を折曲部3を中心に角度を持たせて形成したものである。この折曲の角度は特に限定されるものではないが、100°〜160°の範囲内が好適である。形成の方法は金属製の板材を打ち抜いてもよいし、削って加工したものであってもよい。前記支点柱4はこのような折曲杆2の折曲部3に柱穴7をあけてこの柱穴7に支点柱4を差込んで折曲部3の下方へ突出すようにして溶接等によって固定したものである。折曲部3の上方への支点柱4の突出は特に必要ではないが、突出させておくと溶接が行い易いので確固に固着できる利点がある。又、折曲杆2の一端にもピン穴8があけられており、このピン穴8に上方から差込みピン5が挿入されて固定されている。これら支点柱4及び差込ピン5の折曲杆2の下方からの突出長さは特に限定されるものではないが、最小限横桟10の肉厚よりは長くするほうが好ましい。   The bending rod 2 is formed by forming a metal plate material with an angle around the bending portion 3. The angle of this bending is not particularly limited, but is preferably in the range of 100 ° to 160 °. The forming method may be punching out a metal plate material, or may be cut and processed. The fulcrum column 4 is welded by forming a column hole 7 in the bent part 3 of such a folding rod 2 and inserting the fulcrum column 4 into the column hole 7 so as to protrude below the bent part 3. It is fixed by. The protrusion of the fulcrum column 4 above the bent portion 3 is not particularly necessary, but if it is made to protrude, there is an advantage that it can be firmly fixed because welding is easy. Further, a pin hole 8 is also formed at one end of the bending rod 2, and an insertion pin 5 is inserted into the pin hole 8 from above and fixed. The protruding lengths of the fulcrum column 4 and the insertion pin 5 from the lower side of the folding rod 2 are not particularly limited, but it is preferable to make them longer than the minimum thickness of the cross rail 10.

前記折曲杆2の他端には、手握部6が固定されている。この手握部6は木製などで手に握り易い棒状の材質のものが好ましいが、他の部材であっても良く特に限定されることはない。この手握部6の長さは、前記支点柱4の中心と差込みピン5の中心との距離Aよりも、前記支点柱4の中心と手握部6の先端との距離Bの方が長くなるようになっている。これによって、支点柱4をメタルフォーム11に当接した状態でこの当接点を中心にメタルフォーム脱枠棒1を回転させる時に、テコの原理によって、少ない力で脱枠できるようにしてある。   A handgrip 6 is fixed to the other end of the bent hook 2. The hand grip 6 is preferably made of a rod-like material that is easy to grip with a hand such as wooden, but may be other members and is not particularly limited. The length of the grip portion 6 is longer in the distance B between the center of the fulcrum column 4 and the tip of the grip portion 6 than the distance A between the center of the fulcrum column 4 and the center of the insertion pin 5. It is supposed to be. As a result, when the metal foam removing rod 1 is rotated around the contact point while the fulcrum column 4 is in contact with the metal foam 11, the frame can be removed with a small force by the lever principle.

上記構成からなるこのメタルフォーム脱枠棒1を用いて脱枠する手順について説明すると、図2に示すように、隣接している2つのメタルフォーム11のうちの一方のメタルフォーム11の横桟10に種々の作業用にあらかじめ形成されている小穴12に差込みピン5を挿入し、他方のメタルフォーム11の横桟10又は縦桟13に支点柱4を当接させてから、図3の矢印Aに示すように、手握部6を手で持って他方のメタルフォーム11方向へ移動させるだけでよい。これによって、支点柱4と他方のメタルフォーム11との当接点を中心に差込みピン5が一方のメタルフォーム11から離反する方向へ移動するので、これに伴って一方のメタルフォーム11も同方向へ移動して、硬化しているコンクリートである基礎躯体14から剥れることとなる。この時、前述したように、支点柱4の中心と差込みピン5の中心との距離Aが、支点柱4の中心と手握部6の先端との距離Bよりも小さいので、テコの原理によって少ない力で脱枠できる。メタルフォーム11の上方がこのようにして硬化したコンクリートである基礎全躯体14から剥れれば、残る部分はメタルフォーム11の剥れた上方部分を手で持って引張ること等によって全体を容易に剥して脱枠できる。このような作業を隣接するメタルフォーム11間で次々と繰り返し行うことによって、全てのメタルフォーム11を基礎躯体14から脱枠できるのである。   The procedure for removing the frame using the metal form removing frame rod 1 having the above configuration will be described. As shown in FIG. 2, the cross rail 10 of one of the two adjacent metal forms 11 is used. The insertion pin 5 is inserted into a small hole 12 formed in advance for various operations, and the fulcrum column 4 is brought into contact with the horizontal beam 10 or the vertical beam 13 of the other metal form 11, and then the arrow A in FIG. As shown in FIG. 5, it is only necessary to hold the hand grip 6 and move it toward the other metal foam 11. As a result, the insertion pin 5 moves in the direction away from the one metal form 11 around the contact point between the fulcrum column 4 and the other metal form 11, so that the one metal form 11 also moves in the same direction. It will move and will peel off from the foundation housing 14 which is the hardened concrete. At this time, as described above, since the distance A between the center of the fulcrum column 4 and the center of the insertion pin 5 is smaller than the distance B between the center of the fulcrum column 4 and the tip of the hand grip 6, the lever principle is used. The frame can be removed with less force. If the upper part of the metal foam 11 is peeled off from the foundation whole casing 14 which is the concrete thus hardened, the remaining part can be easily peeled off by holding and pulling the upper part of the metal foam 11 which is peeled off by hand. Can be removed. By repeating such operations one after another between the adjacent metal foams 11, all the metal foams 11 can be removed from the foundation housing 14.

以上の実施例においては、差込みピン5と支点柱4が折曲杆2の下方へ突出している場合について説明したので、メタルフォーム11の脱枠は一方向側から他方向側に向かっての一方向の作業しかできないが、図4に示すように、折曲杆2の上下両方に突出するようにしておけば、隣接して多数個並んでいるメタルフォーム11の両方向のいずれの方向からでも作業を始めることができる利点がある。又、この実施例においては折曲杆2に手握部6を固定した場合について説明したが、折曲杆2の一方を長尺に形成することによって、この手握部6と同じ役割を果たすことができるので、折曲杆2の一方を長尺に形成した場合及び、支点柱4をローラーとすることにより脱枠性が向上するが、この場合もこの発明の範囲に含まれるものである。   In the above embodiment, the case where the insertion pin 5 and the fulcrum column 4 protrude downward from the bending rod 2 has been described. Therefore, the metal frame 11 is unframed from the one direction side toward the other direction side. Although the work can only be performed in the direction, as shown in FIG. 4, as long as it protrudes both above and below the folding cage 2, the work can be performed from either direction of both directions of the metal foam 11 arranged in a row. There are benefits that you can start with. Further, in this embodiment, the case where the hand grip portion 6 is fixed to the bent hook 2 has been described. However, by forming one of the bent hooks 2 to be long, the same function as the hand grip portion 6 is achieved. Therefore, when one of the folding rods 2 is formed long, and by using the fulcrum column 4 as a roller, the unframeability is improved, but this case is also included in the scope of the present invention. .

メタルフォーム脱枠棒の実施例の全体斜視図Overall perspective view of an embodiment of a metal foam unframed bar メタルフォーム脱枠棒のメタルフォームへの取付け状態斜視図Perspective view of the metal foam unframed rod attached to the metal foam メタルフォーム脱枠棒による脱枠状態斜視図The perspective view of the unframed state with the metal foam unframed bar メタルフォーム脱枠棒の他の実施例の全体斜視図Whole perspective view of another embodiment of metal foam unframed bar 従来の脱枠説明図Conventional unframed illustration 従来の他の脱枠説明図Other conventional unframed illustrations

符号の説明Explanation of symbols

1 メタルフレーム脱枠棒
2 折曲杆
3 折曲部
4 支点柱
5 差込みピン
6 手握部
11 メタルフォーム
DESCRIPTION OF SYMBOLS 1 Metal frame removal frame 2 Folding fold 3 Bending part 4 Supporting pillar 5 Insertion pin 6 Hand grip part 11 Metal foam

Claims (1)

所定角度で折曲している折曲杆の折曲部の下方に固定した支点柱と、前記折曲杆の一端の下方に固定した差込みピンと、前記折曲杆の他端に前記支点柱の中心と差込みピンの中心間の距離よりも前記支点柱の中心からその先端までの距離が長い手握部を固定したことを特徴とするメタルフォーム脱枠棒。 A fulcrum column fixed below the bent portion of the folding fold bent at a predetermined angle, an insertion pin fixed below one end of the folding fold, and the fulcrum column fixed to the other end of the folding fold. A metal foam unframed rod characterized by fixing a grip portion whose distance from the center of the fulcrum column to the tip thereof is longer than the distance between the center and the center of the insertion pin.
JP2005346529A 2005-11-30 2005-11-30 Metal foam removal frame Expired - Fee Related JP4600261B2 (en)

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JP2007154414A JP2007154414A (en) 2007-06-21
JP4600261B2 true JP4600261B2 (en) 2010-12-15

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110803664B (en) * 2019-11-11 2021-01-15 南昌航空大学 Aluminum template dismounting device and method capable of reducing deformation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0194542U (en) * 1987-12-16 1989-06-22
JPH08135189A (en) * 1994-11-09 1996-05-28 Takashima:Kk Form dismantiling metal fitting
JP2006118125A (en) * 2004-10-19 2006-05-11 Asahi Kasei Homes Kk Form removing tool and removing method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0194542U (en) * 1987-12-16 1989-06-22
JPH08135189A (en) * 1994-11-09 1996-05-28 Takashima:Kk Form dismantiling metal fitting
JP2006118125A (en) * 2004-10-19 2006-05-11 Asahi Kasei Homes Kk Form removing tool and removing method

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