JP2005320833A - Catch spacer for wall reinforcement and width stop used in common - Google Patents
Catch spacer for wall reinforcement and width stop used in common Download PDFInfo
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- JP2005320833A JP2005320833A JP2004163818A JP2004163818A JP2005320833A JP 2005320833 A JP2005320833 A JP 2005320833A JP 2004163818 A JP2004163818 A JP 2004163818A JP 2004163818 A JP2004163818 A JP 2004163818A JP 2005320833 A JP2005320833 A JP 2005320833A
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- steel wire
- spacer
- wall reinforcement
- synthetic resin
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Abstract
Description
本発明は、鉄筋コンクリート造の建築物に関する。かかる建築物における壁の施工に際して使用する鉄筋は、コンクリート外面より所定の深さに埋設されていければならない。
この深さの数値を「かぶり」と称し、「かぶり」を確保することを目的として鉄筋に設置する金物類をスペーサーと称する。本発明は、このスペーサーに関する。The present invention relates to a reinforced concrete building. Reinforcing bars used for the construction of walls in such buildings must be buried at a predetermined depth from the outer surface of the concrete.
The numerical value of this depth is referred to as “cover”, and the hardware installed on the reinforcing bar for the purpose of ensuring “cover” is referred to as a spacer. The present invention relates to this spacer.
従来、壁用のスペーサーとしては鋼線をプレス加工したもの、ピアノ線をホーミング加工したもの、モルタルにホーミング加工を施したピアノ線を固定したもの、プラスチック製でドーナッツ状をしたものなど種々多彩であるが、例えば鋼線を使用したスペーサーは形状が複雑な割に鉄筋に対する定着性が不十分なため、鉄筋に取り付けた後の作業中にしばしば転落する。
ピアノ線をホーミング加工したものも同様の理由でしばしば鉄筋から転落する。またプラスチック製のものは主として形状的な理由で強度が充分でないためしばしば変形し、所定のかぶりが得られない。このようにそれぞれのスペーサーが多少の問題をかかえており改良すべき点がある。Conventionally, there are various types of spacers for walls, such as steel wire pressed, piano wire homing, mortar homing piano wire fixed, plastic donut shape However, for example, a spacer using a steel wire has a complicated shape and is not sufficiently fixed to the reinforcing bar, so it often falls during work after being attached to the reinforcing bar.
The piano wire homing machine often falls from the reinforcing bars for the same reason. Also, plastic ones are often deformed because of insufficient strength mainly due to their shape, and a predetermined fog cannot be obtained. As described above, each spacer has some problems, and there is a point to be improved.
製造原価を低減しより安価な商品としてのスペーサーを市場に提供する。また一度鉄筋に取り付けたら堅固に定着し、転落することなくかつ充分な強度を有する壁用スペーサーを提供供する。 Providing the market with spacers as a cheaper product that reduces manufacturing costs. Moreover, once attached to a reinforcing bar, the wall spacer is firmly fixed and does not fall down and has a sufficient strength.
本発明者は鋭意研究した結果、鉄筋に堅固に定着し尚且つ正確なかぶりと複式鉄筋の所定の間隔を確保することのできる鋼線スペーサーを安価で造ることに成功した。
このスペーサーは、一本の直鋼線と複式鉄筋の間隔を確定するようにプレス加工が施されたもう一本の鋼線で鉄筋を挟み込み、その両端を合成樹脂製のキャップで固定することで完成した。As a result of diligent research, the present inventor has succeeded in producing a steel wire spacer that can be firmly fixed to the reinforcing bar and that can secure an accurate cover and a predetermined interval between the double reinforcing bars at low cost.
This spacer is made by sandwiching the reinforcing bar with another steel wire that has been pressed to determine the distance between one straight steel wire and the duplex reinforcing bar, and fixing both ends with a cap made of synthetic resin. completed.
以下、本発明を図に従い、詳しく説明する。
図1は本発明による金物を壁の複式鉄筋に取り付けたときのイメージ図である。
ここで符号1は複式鉄筋の間隔を確定するようにプレス加工が施された鋼線、符号2は鉄筋を挟み込むための直鋼線、符号3はこれら二本の鋼線の一端を固定するため予め鋼線が差し込まれている側の合成樹脂製のキャップ、符号4は二本の鋼線の他端を固定するための合成樹脂製のキャップであり、これには符号1の鋼線だけが予め差し込まれていて符号2の直鋼線は本発明による金物を当該壁鉄筋に載せた後でこのキャップの下側のくびれ形状を有する割れ目に押し込められて固定され、その結果本発明による金物全体が確実に鉄筋に固定される。
図2は符号3の合成樹脂製のキャップの詳細なイメージ図であり、(a)又は(b)のごときの形状を有する。ここで(a)及び(b)の符号5は鋼線が差し込まれる孔、(b)の符号6は本金物の鋼線でまだ固定されてない側を開いて鉄筋に載せる際に開き易くするための切り込みである。
図3は符号4の合成樹脂製のキャップの詳細なイメージ図であり、符号7はここに押し込まれた符号2の直鋼線が簡単には外れないようにするためのくびれ部である。Hereinafter, the present invention will be described in detail with reference to the drawings.
FIG. 1 is an image view when a hardware according to the present invention is attached to a double bar of a wall.
Here, reference numeral 1 is a steel wire that has been pressed to determine the interval between the duplex bars, reference numeral 2 is a straight steel wire for sandwiching the reinforcing bars, and
FIG. 2 is a detailed image diagram of the cap made of synthetic resin denoted by
FIG. 3 is a detailed image view of the cap made of synthetic resin of reference numeral 4, and
上述のような構成からなる本発明品たる壁筋用スペーサーは鉄筋に堅固に定着し、従来のスペーサーのようにコンクリート打設時の振動等によって鉄筋から転落したり位置がずれたりすることが全くない。その結果、鉄筋工事において最も重要な鉄筋と鉄筋の間隔や「かぶり」が確実に保証されることになる。また施工に際してこの種のスペーサーが受ける圧縮力に対する強さも250Kgf以上を有し、合成樹脂製のスペーサーの約5倍の強度がある。
さらに、比較的安価で仕入れることのできる原材料の利用と生産性の良い形状のために大幅なコストダウンが達成され、従来の同等品の約半分の価格で市場に提供できる。加えて本発明品は、従来のスペーサーのように壁の両面に夫々別個に取り付ける必要がなく1個で壁の両面の「かぶり」を確保できるのでこの点でも使用者に多大な利益をもたらす。The spacer for wall reinforcing bars according to the present invention having the above-described structure is firmly fixed to the reinforcing bars, and like a conventional spacer, it may fall down from the reinforcing bars or be displaced due to vibrations at the time of placing concrete. Absent. As a result, the most important rebar-to-rebar spacing and “covering” is assured in the rebar construction. Moreover, the strength against the compressive force received by this type of spacer during construction is 250 kgf or more, which is about five times as strong as a synthetic resin spacer.
Furthermore, due to the use of raw materials that can be purchased at a relatively low cost and a highly productive shape, a significant cost reduction can be achieved, which can be provided to the market at about half the price of a conventional equivalent. In addition, the product of the present invention does not need to be separately attached to both sides of the wall as in the case of the conventional spacer, and it is possible to secure “fogging” on both sides of the wall by one, so that this also brings great benefits to the user.
主筋(D13の縦筋)及び配力筋(D13の横筋)のピッチがともに150mm、躯体の壁厚180mmかぶり50mm、配力筋の水平方向の間隔60mmという配筋状況からなる建築現場において本発明品たるスペーサーを水平方向に2mピッチで5個、また鉛直方向にも2mピッチで2個、合計10個取り付けて実験を行なった。その結果、コンクリートの打設終了までに鉄筋からはずれたり、転落したりするものは皆無であった。 The present invention is used in a construction site where the pitch of the main bars (vertical bars of D13) and the reinforcing bars (horizontal bars of D13) is 150 mm, the wall thickness of the frame is 180 mm, the cover is 50 mm, and the horizontal spacing of the reinforcing bars is 60 mm. An experiment was conducted with five spacers in total, 2 at a pitch of 2 m in the horizontal direction and 2 at a pitch of 2 m in the vertical direction. As a result, there was nothing that fell off the steel bar or dropped by the end of concrete placement.
1,プレス加工された鋼線
2,直鋼線
3,合成樹脂製のキャップ
4,合成樹脂製のキャップ
5,鋼線が差し込まれる孔
6,切り込み
7,くびれ部1, pressed steel wire 2,
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2004163818A JP2005320833A (en) | 2004-05-06 | 2004-05-06 | Catch spacer for wall reinforcement and width stop used in common |
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JP2004163818A JP2005320833A (en) | 2004-05-06 | 2004-05-06 | Catch spacer for wall reinforcement and width stop used in common |
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JP2005320833A true JP2005320833A (en) | 2005-11-17 |
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JP2004163818A Pending JP2005320833A (en) | 2004-05-06 | 2004-05-06 | Catch spacer for wall reinforcement and width stop used in common |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9956602B2 (en) | 2012-09-28 | 2018-05-01 | Antonios Anagnostopoulos | Products, systems, and methods for placement of covers on metallic spacers of concrete reinforcement |
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2004
- 2004-05-06 JP JP2004163818A patent/JP2005320833A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9956602B2 (en) | 2012-09-28 | 2018-05-01 | Antonios Anagnostopoulos | Products, systems, and methods for placement of covers on metallic spacers of concrete reinforcement |
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