JPH051472A - Interval holding tool for concrete formwork - Google Patents

Abstract

PURPOSE:To lock and hold an interval holding tool against a concrete formwork simply and surely, and easily fit it. CONSTITUTION:In a concrete formwork interval holding tool 1 of which outside regulating pieces 3,3' are provided by upward bending both end parts of a narrow tablet like plate and inside regulating pieces 4 are provided so as to be spaced from a pair of the outside regulating pieces 3,3' by a prescribed space corresponding to the thickness of a formwork, a bendable part 7a of narrow width to easily bend on the inside regulating piece side is provided against the outside regulating piece 3. At pressing the upper part of the bendable part 7a with a finger, a wide finger support part 7b is provided for bending operation of the bendable part. A locking piece 7 to lock and hold an interval holding tool 1 to the formwork is constituted of the wide finger support part 7b and the bendable part 7a of narrow width.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】この発明はコンクリート型枠間隔
保持具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 form spacing tool.

【０００２】[0002]

【従来の技術】従来のコンクリート型枠間隔保持具は、
短冊状の板材の両端部を上方へ折り曲げてそれぞれ外側
規制片を設け、一対の外側規制片から型枠の厚さに相当
する一定間隔をおいて内側規制片を設けていた。2. Description of the Related Art A conventional concrete formwork space holder is
Both ends of the strip-shaped plate material are bent upward to provide outer regulating pieces, respectively, and the inner regulating pieces are provided at a constant distance from the pair of outer regulating pieces corresponding to the thickness of the mold.

【０００３】[0003]

【発明が解決しようとする課題】ところが、上記従来の
コンクリート型枠間隔保持具は、コンクリート型枠と間
隔保持具が単に嵌合されるのみであるため、コンクリー
ト型枠が正規の位置にない場合には、コンクリート型枠
から間隔保持具が離脱してしまい、本来の機能が発揮で
きないという問題があった。However, in the above-mentioned conventional concrete formwork space holder, since the concrete formwork and the space holder are simply fitted together, when the concrete formwork is not in the proper position. Had a problem that the space holder was removed from the concrete form, and the original function could not be exerted.

【０００４】[0004]

【課題を解決するための手段】この発明は、前記問題点
を解消するため、短冊状の板材の両端部を上方へ折り曲
げてそれぞれ外側規制片を設け、一対の外側規制片から
型枠の厚さに相当する一定間隔をおいて内側規制片を設
けたコンクリート型枠間隔保持具において、前記外側規
制片に対し、容易に内側規制片側へ折れ曲がる幅狭の可
曲折部と、その上部に設けられ、かつ指で押圧したとき
前記可曲折部を折り曲げ操作できる幅広の指当部とから
なる係止片を設けるという手段を採っている。According to the present invention, in order to solve the above-mentioned problems, both ends of a strip-shaped plate member are bent upward to provide outer restriction pieces. In a concrete form space retainer provided with inner regulating pieces at a constant interval corresponding to the height, a narrow bendable portion that is easily bent to the inner regulating piece side with respect to the outer regulating piece, and is provided on the upper part thereof. In addition, a means is provided in which a locking piece composed of a wide finger contact portion capable of bending the bendable portion when pressed with a finger is provided.

【０００５】[0005]

【作用】この発明は前記手段を採ったので、係止片をコ
ンクリート型枠の下端部に折り曲げて係止することによ
り、コンクリート型枠に対し間隔保持具が正規の位置に
確実に保持される。又、前記係止片が幅狭の可曲折部と
その上部の幅広の指当部とにより構成されているので、
前記指当部に指を係止して同係止片を指で容易に折り曲
げることができる。Since the present invention employs the above-mentioned means, the gap holder is surely held at the proper position with respect to the concrete form by bending and engaging the engaging piece with the lower end of the concrete form. .. Further, since the locking piece is composed of the narrow bendable portion and the wide finger holding portion above it,
The finger can be locked to the finger rest and the locking piece can be easily bent with the finger.

【０００６】[0006]

【実施例】以下、この発明を具体化した一実施例を第１
図から第３図に基づいて説明する。図面中１はこの発明
の間隔保持具全体を示し、短冊状の鉄板の中央部を長手
方向に沿って上方へプレスにより押出成形して補強突部
２を形成するとともに、両端部を上方へ折り曲げて外側
規制片３，３とし、一方の外側規制片３をさらに内方へ
直角に折り曲げてほぼコの字状の外側規制片３′として
いる。又、前記外側規制片３，３′から内側へ一定間隔
をおいた位置を基準にして前記補強突部２にほぼＵ字状
の切り込みを入れ、上方へ曲げ起こして内側規制片４，
４とし、前記外側規制片３，３′と、この内側規制片
４，４との間隔を型枠嵌合部５，５とし、その距離を型
枠６，６の厚さａにそれぞれ等しくしている。なお、内
側規制片４，４を曲げ起こしたあとの透孔は上部間隔保
持具として使用するときにはコンクリートの打設状況の
確認窓となる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The first embodiment of the present invention will be described below.
It will be described with reference to FIGS. In the drawings, reference numeral 1 denotes the entire spacing holder of the present invention, in which the central portion of a strip-shaped iron plate is extruded upward along the longitudinal direction by press to form a reinforcing projection 2, and both end portions are bent upward. The outer restriction pieces 3 and 3 are formed as outer restriction pieces 3 and 3, and one of the outer restriction pieces 3 is further bent inward at a right angle to form a substantially U-shaped outer restriction piece 3 '. Also, a substantially U-shaped cut is made in the reinforcing projection 2 with reference to the position spaced inward from the outer restriction pieces 3, 3 ′, and the inner restriction pieces 4, 4 are bent and bent upward.
4, the outer regulating pieces 3, 3 ′ and the inner regulating pieces 4, 4 are spaced from each other by forming form fitting portions 5, 5, and the distance is made equal to the thickness a of the forming forms 6, 6, respectively. ing. It should be noted that the through holes after the inner regulating pieces 4 and 4 are bent and bent serve as confirmation windows for confirming the concrete pouring condition when used as an upper gap holder.

【０００７】７は外側規制片３の内側面中央部（左側又
は右側でもよい）下部に溶着８して上方へ立設した薄い
（０．４〜０．６ｍｍ）短冊状の鉄板、ステンレス板等
よりなる可撓性を有する係止片であって、型枠６下端部
外側に上方へ折り曲げ形成した補強リブ９の上縁に対し
指で折り曲げて係止し型枠６の下面に間隔保持具１を係
止し得るようにしている。この係止片７は下部に位置
し、容易に内側規制片４側へ折れ曲がる幅狭の可曲折部
７ａと、その上部に一体に設けられ、かつ指で押圧した
とき前記可曲折部７ａを折り曲げ操作できる幅広の指当
部７ｂとから構成されている。Reference numeral 7 is a thin (0.4 to 0.6 mm) strip-shaped iron plate, stainless plate or the like which is welded to the lower portion of the central portion (may be left side or right side) of the outer side regulating piece 3 and is erected upward. Is a flexible locking piece made of the following, and is bent and locked by finger with respect to the upper edge of the reinforcing rib 9 which is formed by bending upward on the lower end of the mold 6, and the space holder is provided on the lower surface of the mold 6. 1 can be locked. This locking piece 7 is located in the lower part, and is provided with a narrow bendable portion 7a that easily bends toward the inner regulating piece 4 side, and is integrally provided on the upper portion thereof, and bends the bendable portion 7a when pressed by a finger. It is composed of a wide finger rest 7b that can be operated.

【０００８】なお、この間隔保持具１の中央部寄りに
は、同保持具をベースコンクリートの所定位置に配置し
得るようにくぎ孔１０が透設されている。前記ベースコ
ンクリート及び布基礎コンクリート成形用型枠６，６に
対する間隔保持具１の取付はつぎのようにして行われ
る。すなわち、まずコンクリート型枠６，６を第２図に
示すように支持枠１１上に一定間隔をおいて架設する。
その後間隔保持具１を型枠６，６下方を通して遠くに位
置する型枠６の補強リブ９に対し、コの字状の外側規制
片３′を掛止してから第２図矢印方向へ回動して第３図
に示すように嵌合凹部５，５に型枠６，６の下端が嵌合
されるようにし、さらに、係止片７の指当部７ｂに指を
当てて可折曲折部７ａを補強リブ９側へ同図二点鎖線で
示すように折り曲げて係止する。A nail hole 10 is provided near the center of the gap holder 1 so that the holder can be placed at a predetermined position of the base concrete. The space holder 1 is attached to the base concrete and the cloth foundation concrete forming frames 6 and 6 as follows. That is, first, concrete molds 6 and 6 are erected at a constant interval on a support frame 11 as shown in FIG.
After that, the space holder 1 is passed under the molds 6 and 6, and the U-shaped outer restricting piece 3'is hooked on the reinforcing rib 9 of the mold 6 located far away and then turned in the direction of the arrow in FIG. As shown in FIG. 3, the lower ends of the molds 6 and 6 are fitted into the fitting recesses 5 and 5, and the finger rest 7b of the locking piece 7 is put on a finger to fold it. The bent portion 7a is bent and locked to the reinforcing rib 9 side as shown by the chain double-dashed line in FIG.

【０００９】場合によっては型枠６，６の上部にもこの
間隔保持具１を下向きに使用することが可能である。そ
して、コンクリートは両型枠６，６間に打設されるの
で、下部に使用した間隔保持具１，１はそのまま埋め殺
される消耗品となって、外側規制片３′を含む間隔保持
具１，１の両端部が露出するが、通常土中に埋設される
から何等差し支えない。又、上部に使用される間隔保持
具１は型枠６，６の取り外し時に一緒に取り外される。Depending on the case, it is possible to use the space holder 1 downward on the upper portions of the molds 6, 6. Since the concrete is placed between the molds 6 and 6, the space holders 1 and 1 used at the bottom are consumable items that are buried as they are, and the space holder 1 including the outer restriction piece 3 '. Both ends of No. 1 are exposed, but since they are usually buried in the soil, there is no problem. Further, the space holder 1 used at the upper part is removed together with the mold frames 6 and 6 when they are removed.

【００１０】さて、本発明実施例においては、前記外側
規制片３に対し、容易に内側規制片４側へ折れ曲がる幅
狭の可曲折部７ａと、その上部に設けられ、かつ指で押
圧したとき前記可曲折部７ａを折り曲げ操作できる幅広
の指当部７ｂとからなる係止片７を設けたので、コンク
リート型枠６，６に対し型枠間隔保持具１を確実に係止
保持することができるとともに、係止片７の折り曲げ操
作が指で簡単にしかも確実に行うことができ、このため
コンクリート型枠６，６に対する間隔保持具１の取付け
を容易に行うことができる。In the embodiment of the present invention, a narrow bendable portion 7a which easily bends toward the inner regulating piece 4 side with respect to the outer regulating piece 3, and a narrow bendable portion 7a provided on the upper portion and pressed by a finger. Since the locking piece 7 composed of the wide finger rest 7b capable of bending the bendable portion 7a is provided, the mold space holder 1 can be securely locked and held to the concrete molds 6 and 6. In addition, the bending operation of the locking piece 7 can be performed easily and surely with a finger, so that the space holder 1 can be easily attached to the concrete formwork 6, 6.

【００１１】なお、本発明は次のように具体化すること
も可能である。第４図に示すように、内側規制片４，４
に対し、ほぼＵ字状の切り込みを入れて、突起１６を曲
げ起こしている。この実施例の作用及び効果も前記実施
例を同様である。また、前記実施例では、薄い鉄板等よ
りなる係止片７を外側規制片３に対して溶着する構成と
しているが、外側規制片３に対してスリットを入れるこ
とにより、幅狭の可曲折部７ａと幅広の指当部７ｂとか
らなる係止片７を外側規制片３に一体形成する構成とし
てもよい。この場合には、部品点数が削減され構造が簡
素化されるので、さらに製品コストの低減を図ることが
できる。The present invention can also be embodied as follows. As shown in FIG. 4, the inner regulating pieces 4, 4
On the other hand, the protrusion 16 is bent and bent by making a notch having a substantially U shape. The operation and effect of this embodiment are similar to those of the above embodiment. Further, in the above-described embodiment, the locking piece 7 made of a thin iron plate or the like is welded to the outer restriction piece 3, but by forming a slit in the outer restriction piece 3, a narrow bendable portion. The locking piece 7 composed of the wide contact portion 7b and the finger holding portion 7b may be integrally formed with the outer restriction piece 3. In this case, the number of parts is reduced and the structure is simplified, so that the product cost can be further reduced.

【００１２】[0012]

【発明の効果】以上詳述したように、この発明によれ
ば、係止片の上端部に幅広の指当部があるので、コンク
リート型枠６，６に対し型枠間隔保持具１を確実に係止
保持することができるとともに、指に当たる面積が大き
くなって力が入り易く係止片を指で簡単に折り曲げ操作
することができ、型枠間隔保持具のコンクリート型枠へ
の取付を容易に行うことができる効果がある。As described above in detail, according to the present invention, since the upper end of the locking piece has the wide finger-holding portion, the mold space holder 1 can be securely attached to the concrete molds 6 and 6. In addition to being able to lock and hold, the area that hits the finger is large and force can be easily applied, and the locking pieces can be easily bent with fingers, making it easy to attach the form spacing holder to the concrete form There is an effect that can be done.

【図面の簡単な説明】[Brief description of drawings]

【図１】 間隔保持具を具体化した一実施例を示す斜視
図FIG. 1 is a perspective view showing an embodiment in which a space holder is embodied.

【図２】 取付方法を示す断面図FIG. 2 is a sectional view showing a mounting method.

【図３】 取付状態を示す断面図FIG. 3 is a sectional view showing a mounted state.

【図４】 突起を設けた別例を示す斜視図FIG. 4 is a perspective view showing another example in which a protrusion is provided.

【符号の説明】[Explanation of symbols]

１ 間隔保持具、３，３′ 外側規制片、４ 内側規制
片、７ 係止片、７ａ可曲折部、７ｂ 指当部。1 spacing holder, 3, 3'outer side regulation piece, 4 inner side regulation piece, 7 locking piece, 7a bendable portion, 7b finger rest portion.

Claims (1)

【特許請求の範囲】 【請求項１】 短冊状の板材の両端部を上方へ折り曲げ
てそれぞれ外側規制片を設け、一対の外側規制片から型
枠の厚さに相当する一定間隔をおいて内側規制片を設け
たコンクリート型枠間隔保持具において、前記外側規制
片に対し、容易に内側規制片側へ折れ曲がる幅狭の可曲
折部と、その上部に設けられ、かつ指で押圧したとき前
記可曲折部を折り曲げ操作できる幅広の指当部とからな
る係止片を設けたことを特徴とするコンクリート型枠間
隔保持具。Claim: What is claimed is: 1. A strip-shaped plate member is bent upward at both ends thereof to provide outer restriction pieces, respectively, and a pair of outer restriction pieces are provided inside at a constant interval corresponding to the thickness of the mold. In the concrete form space retainer provided with the regulation piece, the outer regulation piece is provided with a narrow bendable portion that easily bends toward the inner regulation piece side, and the bendable portion provided on the upper portion and pressed by a finger. A concrete formwork space holding tool, characterized in that a locking piece made up of a wide finger hold part capable of bending the part is provided.