JP2017020281A - Sash anchor - Google Patents

Sash anchor Download PDF

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JP2017020281A
JP2017020281A JP2015139909A JP2015139909A JP2017020281A JP 2017020281 A JP2017020281 A JP 2017020281A JP 2015139909 A JP2015139909 A JP 2015139909A JP 2015139909 A JP2015139909 A JP 2015139909A JP 2017020281 A JP2017020281 A JP 2017020281A
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nail
sash
anchor
mounting bracket
mold
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JP6533898B2 (en
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亮介 乾
Ryosuke Inui
亮介 乾
義昭 村里
Yoshiaki Murasato
義昭 村里
隆史 海野
Takashi Unno
隆史 海野
裕司 園部
Yuji Sonobe
裕司 園部
貴博 新井
Takahiro Arai
貴博 新井
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INUI SANGYO KK
Okabe Co Ltd
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INUI SANGYO KK
Okabe Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a sash anchor which is attached by nailing to a mold form for forming a concrete wall having an opening for installing a sash frame and which can remove the nail easily when the mold form is dismantled.SOLUTION: In a sash anchor comprising a metal fitting 1 in which a swollen part 1b is formed on a base plate 1a and an anchor 2 having one end fixed in the swollen part 1b of the metal fitting 1 and the other end projected from the swollen part 1b to the outside, a plurality of slits 4a are carved radially with a part where a nail 12 is driven as the center, on the swollen part 1b of the metal fitting 1, thereby forming a V-shaped split piece 4b between neighboring slits 4a and 4a. By driving the nail 12, the split pieces 4b are bent and deformed in a direction of driving so that the nail 12 can be removed and are spread in a petal shape so as to enable a nail head to pass easily.SELECTED DRAWING: Figure 9

Description

本発明は、コンクリート造りの建物の開口部に窓、ドア等のサッシ枠を取り付けるためのサッシアンカーに関する。   The present invention relates to a sash anchor for attaching a sash frame such as a window or a door to an opening of a concrete building.

従来から、建物の開口部に窓やドア等のサッシ枠を取り付けるには、予め、建物の開口部を形成するための型枠に複数個のサッシアンカーをサッシ枠に対向するように取り付けておき、この型枠のサッシアンカーを取り付けている面側にコンクリートを打設し、コンクリートの固化後、型枠を解体することによって形成された開口部にサッシアンカーを露出させ、これらのサッシアンカーに連結片の一端部を溶接すると共に該連結片の他端部をサッシ枠の外周面に溶接することによってサッシ枠を開口部内に固定し、開口部とサッシ枠との間の空間部にモルタルを打設することによってサッシ枠を開口部に取り付けることが行われている。   Conventionally, in order to attach a sash frame such as a window or a door to an opening of a building, a plurality of sash anchors are previously attached to a mold for forming the opening of the building so as to face the sash frame. The concrete is placed on the side of the formwork where the sash anchors are attached, and after solidifying the concrete, the sash anchors are exposed in the openings formed by dismantling the formwork and connected to these sash anchors. The sash frame is fixed in the opening by welding one end of the piece and the other end of the connecting piece to the outer peripheral surface of the sash frame, and mortar is applied to the space between the opening and the sash frame. By attaching, attaching a sash frame to an opening part is performed.

開口部に対するサッシ枠の取り付けに使用される上記サッシアンカーとしては、従来から、例えば、特許文献１や特許文献２に記載されているように、基板の中央部にプレス加工によって断面台形状の膨出部を形成してなる取付金具と、短い金属製の小径棒材をＳ字状に屈曲してなるアンカーとからなり、このアンカーの一端部を上記取付金具の膨出部内に固定して膨出部の開口端から外部に露呈させることにより、上記連結片に溶接によって連結させるようにしていると共に、他端部を膨出部を貫通して外部に突出させることによって打設コンクリート内に埋設させるように構成したサッシアンカーが知られている。   As the sash anchor used for attaching the sash frame to the opening, conventionally, as described in, for example, Patent Document 1 and Patent Document 2, a sash anchor has a trapezoidal cross-sectional shape by pressing at the center of the substrate. A mounting bracket formed with a protruding portion and an anchor formed by bending a short metal small-diameter bar in an S-shape. One end of the anchor is fixed in the bulging portion of the mounting bracket and is expanded. By exposing to the outside from the opening end of the protruding part, it is connected to the connecting piece by welding, and the other end part is embedded in the casting concrete by protruding outside through the bulging part A sash anchor configured so as to be made is known.

さらに、サッシアンカーを型枠に装着する手段としては、特許文献１には、取付金具における膨出部の外面にこの取付金具を型枠に固定するための釘打ち用の凹部を形成している一方、特許文献２には、取付金具の基板の両端部にインサートボスを突設し、このインサートボス内にインサートピースを嵌着し、このインサートピースの中心部に穿設しているネイルホールに取付金具を型枠に固定するための釘の下半部を型枠に打ち込み可能に挿入、保持させていると共にこの釘の軸部にはその頭部からインサートピースの取付金具からの突出長よりもやや長めの位置に軸を分断するための切り込み溝を設けている型枠に対する取付構造が記載されている。   Furthermore, as means for attaching the sash anchor to the mold, Japanese Patent Application Laid-Open No. H10-228707 forms a nail driving recess for fixing the mounting bracket to the mold on the outer surface of the bulging portion of the mounting bracket. On the other hand, in Patent Document 2, insert bosses are provided at both ends of the substrate of the mounting bracket, insert pieces are fitted into the insert bosses, and nail holes formed in the center of the insert pieces are provided. The lower half of the nail for fixing the mounting bracket to the formwork is inserted and held so that it can be driven into the formwork, and the shaft of this nail has a protruding length from the insert piece mounting bracket from the head. A mounting structure for a mold having a cut groove for dividing the shaft at a slightly longer position is described.

実公平２−１８２３４号公報Japanese Utility Model Publication No. 2-18234 実公平４−４９３４４号公報Japanese Utility Model Publication No. 4-49344

しかしながら、上記特許文献１に記載のサッシアンカーによれば、型枠にサッシアンカーを釘着する際に、釘の尖鋭な下端によって取付金具の膨出部の適所に孔をあけながら膨出部内を通じて型枠に打ち付けなければならないために、金属製の膨出部を貫通させる際の抵抗力によって釘着作業が容易に且つ正確に行えない事態が発生する虞れがある。さらに、型枠内に打設したコンクリートの固化後に型枠を解体すると、コンクリート壁面から釘の先端部が突出した状態となり、サッシ枠の取付作業等を行う際に危険である。このため、突出している釘の軸部をハンマーによって折り曲げて膨出部内に納めているが、その作業が煩わしいといった問題点がある。   However, according to the sash anchor described in the above-mentioned Patent Document 1, when the sash anchor is nailed to the formwork, the sash anchor is passed through the bulging portion while making a hole at an appropriate position of the bulging portion of the mounting bracket by the sharp lower end of the nail. Since it has to be struck to the mold, there is a possibility that a situation where the nailing operation cannot be performed easily and accurately due to a resistance force when penetrating the metal bulge portion may occur. Furthermore, if the mold is disassembled after the concrete placed in the mold is solidified, the tip of the nail protrudes from the concrete wall surface, which is dangerous when performing a sash frame mounting operation or the like. For this reason, the protruding nail shaft is bent by a hammer and stored in the bulging portion, but there is a problem that the operation is troublesome.

一方、上記特許文献２に記載のサッシアンカーによれば、釘がインサートボス内に嵌着しているインサートピースのネイルホールに案内されながら型枠に直接且つ簡単に打ち込むことができるが、釘頭がインサートボスの端面に係止しているため、脱型時には釘が取付金具側に残存することになる。そうすると、上記同様に釘の先端部がコンクリート壁面から突出して作業員等に危険を及ぼす虞れがあるので、この特許文献２に記載のサッシアンカーにおいては、釘の軸部における長さ方向の中間部に切り込み溝を設けておき、脱型時に軸部をこの切り込み溝から破断させて型枠に打ち込んでいる軸部の下半部を型枠側に内に残留させるように構成している。   On the other hand, according to the sash anchor described in Patent Document 2, the nail can be directly and easily driven into the formwork while being guided by the nail hole of the insert piece fitted in the insert boss. Is locked to the end face of the insert boss, so that the nail remains on the mounting bracket side when demolding. Then, as described above, the tip of the nail protrudes from the concrete wall surface, and there is a risk of danger to workers and the like. Therefore, in the sash anchor described in Patent Document 2, the nail shaft portion is in the middle in the length direction. A notch groove is provided in the part, and the shaft part is broken from the notch groove at the time of demolding, and the lower half part of the shaft part driven into the mold frame is left in the mold frame side.

しかしながら、型枠の解体時に釘の軸部の下半部を釘頭側に対して破断させて型枠側に残存させるようにするには、釘頭からインサートピースの取付金具からの突出長よりもやや長めの位置の軸部に切り込み溝を設けている特殊な釘を採用しなければならず、通常の釘やねじ釘ではその軸部を破断させるにはカッターによって行わなければならない。   However, in order to break the lower half of the nail shaft with respect to the nail head side when the mold is dismantled and to remain on the mold frame side, the length of protrusion from the insert piece mounting bracket from the nail head A special nail provided with a notch groove in the shaft portion at a slightly longer position must be adopted, and in a normal nail or screw nail, the shaft portion must be broken by a cutter.

さらに、切り込み溝を釘頭からインサートピースの取付金具からの突出長よりもやや長めの位置の軸部に設けているので、取付金具側に残存する釘等側の軸部の破断面がコンクリート壁面から僅かに突出した状態となって作業員等に損傷させる虞れがある一方、型枠内には破断した軸部の下半部が没入した状態で残存するので、この軸部の除去が極めて困難になる等の問題点がある。   Furthermore, since the cut groove is provided in the shaft part at a position slightly longer than the protruding length of the insert piece from the mounting bracket from the nail head, the fracture surface of the shaft part on the nail side remaining on the mounting bracket side is a concrete wall surface. However, the lower half of the broken shaft portion remains immersed in the mold, so that the removal of the shaft portion is extremely difficult. There are problems such as difficulty.

本発明はこのような問題点に鑑みてなされたもので、その目的とするところは型枠に対する釘着による取付けが容易に且つ正確に行えるのは勿論、型枠の解体時には釘を型枠或いは取付金具から簡単に除去することができて、作業員等が釘の残存により損傷を受ける危険性をなくすることができると共に、釘の再利用も可能にしたサッシアンカーを提供するにある。   The present invention has been made in view of such problems, and the object of the present invention is that it can be easily and accurately attached to the mold by nailing, and when the mold is disassembled, the nail is removed from the mold. It is an object of the present invention to provide a sash anchor that can be easily removed from a mounting bracket, eliminates the risk that an operator or the like will be damaged by the remaining of the nail, and also enables the reuse of the nail.

上記目的を達成するために、本発明のサッシアンカーは、請求項１に記載したように、基板の中央部に断面台形状の膨出部を形成してなる取付金具と、一端部をこの取付金具における上記膨出部内に固定し、他端部を上記膨出部を貫通して外部に突出させているアンカーとからなるサッシアンカーにおいて、上記取付金具の膨出部に、取付金具を型枠に固定するための釘の先端を当てがう部分を中心としてこの中心から複数条のスリットを放射状に形成することにより、膨出部における釘打ち込み部分を、スリットを介して複数分割されたＶ字状の分割片に形成していることを特徴とする。   In order to achieve the above object, a sash anchor according to the present invention comprises, as described in claim 1, an attachment fitting formed with a bulging portion having a trapezoidal cross section at the center portion of a substrate, and one end portion thereof attached to the sash anchor. In a sash anchor comprising an anchor that is fixed in the bulging portion of the metal fitting and has the other end protruding through the bulging portion and projecting to the outside, the fitting is attached to the bulging portion of the fitting. By forming a plurality of slits radially from the center of the portion where the tip of the nail for fixing to the center is applied, the nail driving portion in the bulging portion is divided into a plurality of V shapes through the slit. It is characterized in that it is formed into a segmented piece.

このように構成したサッシアンカーにおいて、請求項２に係る発明は、取付金具の膨出部における釘打ち込み部分に形成した複数のＶ字状の分割片における両側のスリットの長さを釘頭の半径よりも長い長さに形成していることを特徴とする。   In the sash anchor configured as described above, the invention according to claim 2 is characterized in that the length of the slits on both sides of the plurality of V-shaped divided pieces formed in the nail driving portion in the bulging portion of the mounting bracket is determined by the radius of the nail head. It is characterized by being formed in a longer length.

請求項３に係る発明は、スリットが交差している釘の打ち込み部分の中心に凹部を形成していることを特徴とする。   The invention according to claim 3 is characterized in that a recess is formed in the center of the nail driving portion where the slits intersect.

請求項１に係る発明によれば、アンカーを取付けている取付金具の膨出部の頂面に、釘打ち時における釘の先端を当てがう部分を中心としてこの中心から複数条のスリットを放射状に形成することによって膨出部における釘打ち込み部分を、スリットを介して複数分割されたＶ字状の分割片に形成しているので、このサッシアンカーを型枠に釘着により取付ける際に、釘の先端を上記複数状のスリットが交差している中心部に当てがって打ち込むと、その打ち込み力によって上記全ての分割片をスリットから分断させながら取付金具の膨出部内に向かって花びら状に押し拡げて釘の打ち込み方向に屈曲変形させることができ、従って、釘を取付金具の膨出部に容易に貫通させることができると共に、これらの分割片の先端部が膨出部内において釘の軸部の周囲に圧接した状態になって釘の軸部がこれらの分割片によって保持されながら型枠に正確に且つ円滑に打ち込むことができ、型枠に対するサッシアンカーの釘着作業が容易に且つ正確に行うことができる。   According to the first aspect of the present invention, a plurality of slits are radially formed from the center on the top surface of the bulging portion of the mounting bracket to which the anchor is attached, centering on the portion where the tip of the nail is applied when nailing. Since the nail driving portion in the bulging portion is formed into a plurality of V-shaped divided pieces through the slits, when the sash anchor is attached to the mold frame by nail attachment, the nail When the tip of the lens is driven into the center where the plurality of slits intersect, it is petal-shaped toward the inside of the bulging portion of the mounting bracket while cutting all the divided pieces from the slit by the driving force. The nail can be bent and deformed in the driving direction of the nail, so that the nail can be easily penetrated through the bulging portion of the mounting bracket, and the tip ends of these divided pieces are placed in the bulging portion. The nail shaft can be driven into the mold accurately and smoothly while being pressed against the periphery of the nail shaft, and the nail shaft can be driven into the mold accurately and easily. And accurately.

また、コンクリートの打設、固化後において型枠を解体すると、サッシアンカーの取付金具が型枠に対向させていたその内面をコンクリート壁面から外部に露出させた状態にしてコンクリート壁内に埋設されるが，型枠をコンクリート壁面から脱型させると、軸部を型枠に打ち付けている釘にサッシアンカーの取付金具に対して引き抜き力が発生して釘の頭部を受止している取付金具の上記膨出部における釘打ち込み部分に形成した複数の分割片がこの頭部によってさらに大きく押し拡げられ、型枠に対する釘の固着力が大きい場合には、型枠と共に釘がサッシアンカーの取付金具の膨出部における釘打ち込み部分から容易に引き抜かれ、サッシアンカー側から簡単に除去することができると共に、型枠と一体的に取り外された釘は、型枠に打ち込まれている先端部以外の軸部が型枠から大きく突出しているので、型枠からの抜き取りによる除去も簡単に行うことができる。   Also, when the formwork is disassembled after placing and solidifying the concrete, the sash anchor mounting bracket is embedded in the concrete wall with its inner surface facing the formwork exposed to the outside from the concrete wall surface. However, when the mold is removed from the concrete wall, a pulling force is generated against the sash anchor mounting bracket on the nail whose shaft is driven against the mold, and the mounting bracket receives the head of the nail. When the plurality of divided pieces formed in the nail driving portion of the bulging portion are further expanded by the head and the fixing force of the nail to the mold is large, the nail is attached to the sash anchor mounting bracket together with the mold The nail that is easily pulled out from the nail driving portion in the bulging portion of the sash and can be easily removed from the sash anchor side, and the nail removed integrally with the mold is attached to the mold Since the shaft portion other than the distal end portion which is incorporated Chi protrudes largely from the mold it can be carried out removal by extraction from the mold easily.

一方、型枠に対する釘の固着力が膨出部の釘打ち込み部分に形成している上記複数の分割片による保持力よりも小さい場合には、型枠の解体撤去後、サッシアンカー側に残存したこの釘の先端部をペンチ等によって掴持して引き抜き力を付与すると、釘頭を係止状態に受止している上記複数の分割片が釘頭によって大きく押し拡げられて釘頭が花びら状に拡開した分割片を通過し、膨出部から簡単に抜き取ることができる。   On the other hand, when the fixing force of the nail to the formwork is smaller than the holding force by the plurality of divided pieces formed in the nail driving part of the bulging part, it remains on the sash anchor side after dismantling the formwork When the tip of the nail is gripped with pliers or the like and a pulling force is applied, the plurality of divided pieces receiving the nail head in a locked state are greatly expanded by the nail head, and the nail head has a petal shape. Can be easily extracted from the bulge.

いずれにしても、型枠にサッシアンカーを固定した釘を型枠から或いはコンクリート壁に埋設しているサッシアンカー側の膨出部から簡単に除去することができ、作業員等が釘の残存により損傷を受ける危険性をなくすることができるばかりでなく、釘の再利用を可能にすることができる。   In any case, the nail with the sash anchor fixed to the formwork can be easily removed from the formwork or from the bulge on the sash anchor side embedded in the concrete wall. Not only can the risk of damage be eliminated, but the nail can be reused.

請求項２に係る発明によれば、取付金具の膨出部における釘打ち込み部分に形成した複数のＶ字状の分割片における両側のスリットの長さを釘頭の半径よりも長い長さに形成しているので、上記膨出部に設けている釘打ち込み部分から釘を除去する際に、比較的小さな引き抜き力によって分割片を釘頭で釘の抜き取り方向に押し拡げながら膨出部の釘打ち込み部分を通過させて簡単に膨出部から取り除くことができる。   According to the second aspect of the present invention, the slits on both sides of the plurality of V-shaped divided pieces formed in the nail driving portion in the bulging portion of the mounting bracket are formed to be longer than the radius of the nail head. Therefore, when removing the nail from the nail driving portion provided in the bulging portion, the nail is driven into the bulging portion while expanding the divided piece with the nail head in the nail extraction direction with a relatively small pulling force. It can be easily removed from the bulge by passing through the part.

請求項３に係る発明によれば、スリットが交差している釘の打ち込み部分の中心に凹部を形成しているので、釘によってサッシアンカーを型枠に取り付ける際に、釘の先端をこの凹部内に係合させることによって釘の打ち込み位置を正確に位置に簡単に位置決めすることができ、その状態から釘のズレを生じさせることなく正確な方向に打ち込むことができて型枠に対するサッシアンカーの取付作業が能率よく且つ正確に行うことができる。   According to the invention of claim 3, since the recess is formed at the center of the nail driving portion where the slits intersect, when the sash anchor is attached to the formwork by the nail, the tip of the nail is placed in the recess. The nail driving position can be easily and accurately positioned by engaging with the sash, and it can be driven in the correct direction without causing the nail displacement, and the sash anchor can be attached to the formwork. Work can be performed efficiently and accurately.

サッシアンカーの斜視図。The perspective view of a sash anchor. そのＡ−Ａ線における縦断側面図。The longitudinal side view in the AA line. Ｂ−Ｂ線における縦断正面図。The longitudinal section front view in the BB line. サッシアンカーの変形例を示す斜視図。The perspective view which shows the modification of a sash anchor. サッシアンカーを型枠上に配置した状態の縦断側面図。The vertical side view of the state which has arrange | positioned the sash anchor on the formwork. サッシアンカーを釘によって型枠に固定している状態の縦断側面図。The vertical side view of the state which has fixed the sash anchor to the formwork with the nail. その釘打ち込み部分の拡大縦断側面図。The enlarged vertical side view of the nail driving part. コンクリートを打設した状態のサッシアンカー部分の縦断側面図。The vertical side view of the sash anchor part of the state which laid concrete. コンクリート壁面から型枠を取り外した状態の縦断側面図。The vertical side view of the state which removed the formwork from the concrete wall surface. そのサッシアンカーの釘打ち込み部分の拡大縦断側面図。The enlarged vertical side view of the nail driving part of the sash anchor. コンクリート壁の開口部にサッシ枠を取付けた状態の縦断面図。The longitudinal cross-sectional view of the state which attached the sash frame to the opening part of a concrete wall. その一部の拡大縦断面図。The enlarged vertical sectional view of the one part.

本発明の具体的な実施例を図面について説明すると、図１〜図３において、サッシアンカーは、薄鋼板製の取付金具１とこの取付金具に一体に固着されている短い小径の金属棒材からなるアンカー２とからなる。   Referring to the drawings, specific embodiments of the present invention will be described. In FIGS. 1 to 3, a sash anchor is made up of a mounting member 1 made of a thin steel plate and a short small-diameter metal bar integrally fixed to the mounting bracket. The anchor 2 which becomes.

上記取付金具１は矩形状に形成された基板1aの中央部にプレス加工によって断面台形状の膨出部1bを形成している一方、上記アンカー２はこの膨出部1bの高さ寸法よりも小径の短尺の金属棒材の長さ方向の両端部2a、2bを中間部2cに対して互いに相反する前後方向に略直角に屈折させてＳ字状に形成されてあり、その一端部2aを上記取付金具１の膨出部1b内に配設して膨出部1bの頂部における内面に溶接によって一体に固着し、膨出部1bの開口端から外部に向かって露呈させている。さらに、このアンカー２の他端部2bは中間部2cと共に膨出部1bの頂部に設けている通孔３を貫通させて外部に突出させている。   While the mounting bracket 1 has a bulged portion 1b having a trapezoidal cross section formed by pressing at the center of a substrate 1a formed in a rectangular shape, the anchor 2 is larger than the height of the bulged portion 1b. Both ends 2a and 2b in the length direction of a small metal rod having a small diameter are refracted at right angles in the front-rear direction opposite to each other with respect to the intermediate portion 2c, and are formed in an S shape. It is disposed in the bulging portion 1b of the mounting bracket 1 and is integrally fixed to the inner surface of the top portion of the bulging portion 1b by welding, and is exposed from the opening end of the bulging portion 1b to the outside. Further, the other end portion 2b of the anchor 2 penetrates the through hole 3 provided at the top of the bulging portion 1b together with the intermediate portion 2c and protrudes to the outside.

このように取付金具１とアンカー２とを備えてなるサッシアンカーにおいて、取付金具１に、このサッシアンカーを型枠11に釘着によって固定するための釘打ち込み部分４を設けている。この釘打ち込み部分４は、取付金具１の膨出部1bの頂部において、膨出部1b内に固定されている上記アンカー２の一端部2aと重複しない部分の外面（頂面）における一側部に、取付金具１を型枠11に固定するための釘12の尖鋭な先端を当てがう部分を中心とし、この中心から所定長さと深さを有する複数条の真っ直ぐなスリット4aを放射状に刻設することによって各隣接するスリット4a、4a間に膨出部1b内の空間部に向かって屈曲可能なＶ字状の分割片4bを形成してなるものである。   Thus, in the sash anchor comprising the mounting bracket 1 and the anchor 2, the mounting bracket 1 is provided with a nail driving portion 4 for fixing the sash anchor to the mold 11 by nailing. This nail driving portion 4 is one side portion on the outer surface (top surface) of the portion that does not overlap with one end portion 2a of the anchor 2 fixed in the bulging portion 1b at the top portion of the bulging portion 1b of the mounting bracket 1. In addition, a plurality of straight slits 4a having a predetermined length and depth are radially engraved from the center where the sharp tip of the nail 12 for fixing the mounting bracket 1 to the mold 11 is applied. Thus, a V-shaped divided piece 4b that can be bent toward the space in the bulging portion 1b is formed between the adjacent slits 4a and 4a.

なお、図１においては、上記スリット4aの２倍の長さを有するスリットを十字状に交差させてその交差点を中心として互いに直角方向に放射状に設けることにより、釘打ち込み部分４をスリット4aを介して４分割されたＶ字状の分割片4bによって形成しているが、中心から放射状に設けられるスリット4aの数を上記以上、例えば、図４に示すように中心から８本のスリット4aを放射状に設けて、釘打ち込み部分４に８片のＶ字状の分割片4bを形成しておいてもよい。   In FIG. 1, slits having a length twice that of the slit 4a are crossed in a cross shape and provided radially at right angles to each other around the crossing point so that the nail driving portion 4 is inserted through the slit 4a. The number of slits 4a provided radially from the center is more than the above, for example, eight slits 4a from the center as shown in FIG. 8 pieces of V-shaped divided pieces 4b may be formed in the nail driving portion 4.

さらに、スリット4a、4aが交差している中心から先端までのこれらのスリット4aの長さは釘12の釘頭12a の半径よりも長くなるように形成していると共に、スリット4a、4aが交差している中心には釘12の軸部12b の尖鋭な先端を受け入れるための凹部５を形成している。   Further, the length of the slits 4a from the center where the slits 4a, 4a intersect to the tip is formed to be longer than the radius of the nail head 12a of the nail 12, and the slits 4a, 4a intersect. A concave portion 5 for receiving a sharp tip of the shaft portion 12b of the nail 12 is formed at the center.

このように構成したサッシアンカーの使用態様を説明すると、図５に示すように、型枠11におけるコンクリートを打設する側の面（内面）に取付金具１の基板1aを当てがい、釘12の先端を取付金具１の膨出部1bの頂面に設けている釘打ち込み部分４における複数条のスリット4aが交差した中心部の凹部５内に係入させた状態にし、ハンマー等により釘12の頭部12a を叩打して釘12をスリット4aが交差している中心部に打ち込むと、図６、図７に示すように、その打ち込み力によって全ての分割片4bがスリット4aから分断されながらその先端部を釘12の打ち込み方向、即ち、膨出部1bの内部に向かって屈曲してこれらの分割片4bの先端部間が釘12の軸部12b を中心として互いに離間する方向に押し拡げられ、これらの先端部間に釘12の軸部12b を貫通させる貫通孔６が形成される。   The usage mode of the sash anchor constructed in this way will be described. As shown in FIG. 5, the base plate 1a of the mounting bracket 1 is applied to the surface (inner surface) of the mold 11 on which concrete is to be placed. The tip of the nail 12 is inserted into the recessed portion 5 at the center where the plurality of slits 4a in the nail driving portion 4 provided on the top surface of the bulging portion 1b of the mounting bracket 1 intersect. When the head 12a is struck and the nail 12 is driven into the center where the slit 4a intersects, as shown in FIGS. 6 and 7, all the split pieces 4b are separated from the slit 4a by the driving force. The leading end is bent in the driving direction of the nail 12, that is, the inner end of the bulging portion 1b is bent so that the leading end portions of these divided pieces 4b are separated from each other about the shaft portion 12b of the nail 12. Pierce the shaft portion 12b of the nail 12 between these tip portions. Hole 6 is formed.

釘12の先端部から軸部12b が釘打ち込み部分４の中心部を貫通すると、分割片4bの先端部が釘12の軸部12b の回りに圧接しながらこれらの分割片4bが打ち込み方向に大きく屈曲して花びら状に押し拡げられ、これらの分割片4bの先端部によって釘12の軸部11b が打ち込み方向に挟圧、保持されながら釘12の頭部12a の頂面が膨出部1bの頂面と面一状態となるまで型枠11に打ち込まれてサッシアンカーが型枠11に取り付けられる。   When the shaft portion 12b penetrates the center portion of the nail driving portion 4 from the tip portion of the nail 12, the tip portion of the divided piece 4b is pressed around the shaft portion 12b of the nail 12 and the divided pieces 4b are greatly increased in the driving direction. The nail 12 shaft 11b is clamped and held in the driving direction by the tips of these divided pieces 4b, and the top surface of the head 12a of the nail 12 is extended to the bulge 1b. The sash anchor is attached to the mold 11 by being driven into the mold 11 until it is flush with the top surface.

型枠11に対するサッシアンカーの取り付けは、型枠11におけるコンクリート打設面側にに所定間隔毎に複数個、取り付けられ、この型枠11を矩形状に組み合わせると共にこれらの型枠11と共にコンクリート壁13を形成するための型枠（図示せず）を組み立てたのち、型枠間にコンクリートを打設すると、図８に示すように、打設したコンクリートにサッシアンカーの取付金具１の外面と共にこの取付金具１の膨出部1bから突出したアンカー部2b、2cが埋設される。   A plurality of sash anchors are attached to the formwork 11 on the concrete placement surface side of the formwork 11 at predetermined intervals. The formwork 11 is combined in a rectangular shape and the concrete wall 13 together with the formwork 11 is combined. After assembling the formwork (not shown) to form the concrete, when concrete is placed between the formwork, as shown in FIG. 8, this attachment is performed together with the outer surface of the sash anchor mounting bracket 1 on the placed concrete. Anchor portions 2b and 2c protruding from the bulging portion 1b of the metal fitting 1 are embedded.

打設したコンクリートの固化後、型枠を解体すると、図11に示すように、コンクリート壁13に、上記矩形状に組み合わせている型枠11の撤去による開口部14が設けられ、この開口部14に面している四方のコンクリート壁面13a に、図９に示すように、上記サッシアンカーの取付金具１における基板1aの平坦な内面とこの取付金具１の中央部に設けている上記膨出部1bの開口端が露出する。   When the formwork is disassembled after the cast concrete is solidified, as shown in FIG. 11, the concrete wall 13 is provided with an opening 14 by removing the formwork 11 combined in the rectangular shape, and this opening 14 As shown in FIG. 9, the bulge portion 1 b provided on the flat inner surface of the substrate 1 a and the central portion of the mounting bracket 1 is formed on the four concrete wall surfaces 13 a facing each other. The open end of is exposed.

さらに、上記型枠11の撤去時に、これらの型枠11をコンクリート壁面13から離脱させると、型枠11に打ち込まれている釘12の軸部12b に型枠11のコンクリート壁面13からの離間に伴って引き抜き力が発生し、釘12の頭部12a を受止している取付金具１の上記膨出部1bにおける釘打ち込み部４に形成した複数の分割片4bが上記引き抜き方向に移動するこの頭部12a によって図10に示すように大きく花びら状に押し拡げられる。   Further, when the mold 11 is removed from the concrete wall 13 when the mold 11 is removed, the shaft 11b of the nail 12 driven into the mold 11 is separated from the concrete wall 13 of the mold 11. Along with this, a pulling force is generated, and a plurality of divided pieces 4b formed in the nail driving portion 4 in the bulging portion 1b of the mounting bracket 1 receiving the head 12a of the nail 12 move in the pulling direction. As shown in FIG. 10, the head 12 a is greatly expanded into a petal shape.

この時、型枠11に対する釘12の軸部12b の固着力が釘12の頭部を受止する分割片4bの支持力よりも大きい場合には、釘12はその軸部12b を型枠11に固着させた状態で釘12の頭部12a により上記分割片4bを該頭部12a が通過可能なようにさらに大きく拡開する方向に屈曲変形させてこれらの分割片4bの先端部を釘12の軸部12b から外周方に変移させながら頭部12a の周囲に摺接させ、分割片4bで囲まれた貫通孔６を拡径させてこの貫通孔６内を頭部12a が通過し、サッシアンカーの膨出部1bにおける釘打ち込み部分４から引き抜かれる。こうしてサッシアンカー側から引き抜かれた釘12は、型枠11にその軸部12b を大きく突出させた状態で固着しているので、型枠11からの除去が簡単に行うことができる。   At this time, when the fixing force of the shaft portion 12b of the nail 12 to the mold 11 is larger than the supporting force of the divided piece 4b that receives the head of the nail 12, the nail 12 moves the shaft portion 12b to the mold 11 With the head 12a of the nail 12 fixed to the nail 12, the divided pieces 4b are bent and deformed in a direction that further expands so that the head 12a can pass through, and the tips of these divided pieces 4b are nail 12 Slidably contacting the periphery of the head 12a while changing from the shaft portion 12b to the outer periphery, the diameter of the through hole 6 surrounded by the divided piece 4b is increased, and the head 12a passes through the through hole 6 so that the sash It is pulled out from the nail driving portion 4 in the bulging portion 1b of the anchor. Since the nail 12 pulled out from the sash anchor side is fixed to the mold frame 11 with the shaft portion 12b protruding greatly, the nail 12 can be easily removed from the mold frame 11.

一方、型枠11に対する釘12の固着力が膨出部1bの釘打ち込み部分４に形成している上記複数の分割片4bによる保持力よりも小さい場合には、型枠11の撤去後、サッシアンカー側に残存しているこの釘12のコンクリート壁面13に向かって突出している軸部先端をペンチ等によって掴持して引き抜き力を付与すると、釘頭11a を係止状態に受止している上記複数の分割片が釘12の頭部12a の引き抜き方向の移動によって該頭部12a が通過可能なように大きく拡開する方向に屈曲変形し、上記同様に、これらの分割片4bの先端部が釘12の軸部12b から外周方に変移しながら頭部12a の周囲に摺接し、分割片4bで囲まれた貫通孔６が拡径してこの貫通孔６を釘12の頭部12a を通過させて取付金具１側から除去することができる。   On the other hand, when the fixing force of the nail 12 to the mold 11 is smaller than the holding force by the plurality of divided pieces 4b formed in the nail driving portion 4 of the bulging portion 1b, the sash is removed after the mold 11 is removed. The nail head 11a is received in the locked state when the shaft tip protruding toward the concrete wall surface 13 of the nail 12 remaining on the anchor side is gripped by pliers or the like and a pulling force is applied. The plurality of divided pieces are bent and deformed in a direction of widening so that the head 12a can pass through the movement of the head 12a of the nail 12 in the pulling direction. Slidably contacts the periphery of the head 12a while shifting from the shaft portion 12b of the nail 12 to the outer periphery, and the diameter of the through hole 6 surrounded by the divided piece 4b is increased. It can be removed and removed from the mounting bracket 1 side.

型枠の解体によってコンクリート壁面13に形成された上記開口部14にサッシ枠15を取り付けるには、図11、図12に示すように、金属片からなる連結片16の一端部を開口部14に臨ませている各サッシアンカーの取付金具１の膨出部1bにおける内面に固定したアンカー２の一端部2aに溶接によって固着すると共に、この連結片16の他端部を上記開口部14内に配設したサッシ枠15の外周面に溶接によって固着したのち、サッシ枠15とコンクリート壁面13a 間にモルタル17を充填することによって行われる。   To attach the sash frame 15 to the opening 14 formed in the concrete wall 13 by dismantling the formwork, as shown in FIGS. 11 and 12, one end of the connecting piece 16 made of a metal piece is connected to the opening 14. Each of the sash anchors facing each other is fixed by welding to one end 2a of the anchor 2 fixed to the inner surface of the bulging portion 1b of the fitting 1, and the other end of the connecting piece 16 is disposed in the opening 14. After fixing to the outer peripheral surface of the provided sash frame 15 by welding, the mortar 17 is filled between the sash frame 15 and the concrete wall surface 13a.

なお、以上の実施例において、型枠11に打ち込んでサッシアンカーを型枠11に固定するための釘12としては、ネジ釘や軸部に複数のリング状凹凸部を形成している釘を使用してもよく、このようなネジ釘や軸部に複数のリング状凹凸部を形成している釘を型枠11に打ち込むと、型枠11に対する固着力が増大して、型枠11の解体時に、サッシアンカーの取付金具１の膨出部1bにおける釘打ち込み部分４からの釘12の引き抜き力が大きくなり、この釘打ち込み部分４を形成している分割片4bをその引き抜き力によってその引き抜き方向に大きく屈曲、変形させながら、全ての分割片4bを花びら状に大きく拡開させて釘12をサッシアンカー側から引き抜き除去することが可能となる。   In the above embodiment, as the nail 12 for driving into the mold 11 and fixing the sash anchor to the mold 11, a screw nail or a nail in which a plurality of ring-shaped irregularities are formed on the shaft is used. However, when such a screw nail or a nail having a plurality of ring-shaped irregularities on the shaft is driven into the mold 11, the fixing force to the mold 11 increases, and the mold 11 is disassembled. Sometimes, the pulling force of the nail 12 from the nail driving portion 4 in the bulging portion 1b of the mounting bracket 1 of the sash anchor increases, and the dividing piece 4b forming the nail driving portion 4 is pulled out by the pulling force. It is possible to pull out and remove the nail 12 from the sash anchor side by greatly expanding all of the divided pieces 4b in the shape of petals while greatly bending and deforming.

１ 取付金具
1a 基板
1b 膨出部
２ アンカー
３ 通孔
４ 釘打ち込み部分
4a スリット
4b 分割片
５ 凹部
11 型枠
12 釘
12a 頭部
12b 軸部
13 コンクリート壁面
14 開口部
15 サッシ枠
16 連結片 1 Mounting bracket
1a board
1b bulging part 2 anchor 3 through hole 4 nail driving part
4a Slit
4b Dividing piece 5 Recess
11 Formwork
12 nails
12a head
12b Shaft
13 Concrete wall
14 opening
15 Sash frame
16 Connecting piece

Claims (3)

基板の中央部に断面台形状の膨出部を形成してなる取付金具と、一端部をこの取付金具における上記膨出部内に固定し、他端部を上記膨出部を貫通して外部に突出させているアンカーとからなるサッシアンカーにおいて、上記取付金具の膨出部に、取付金具を型枠に固定するための釘の先端を当てがう部分を中心としてこの中心から複数条のスリットを放射状に形成することにより、膨出部における釘打ち込み部分を、スリットを介して複数分割されたＶ字状の分割片に形成していることを特徴とするサッシアンカー。   A mounting bracket formed with a bulged portion having a trapezoidal cross section at the center of the substrate, and one end fixed inside the bulged portion of the mounting bracket, and the other end penetrating the bulged portion to the outside In a sash anchor composed of a protruding anchor, a plurality of slits are formed from the center around the portion where the tip of the nail for fixing the mounting bracket to the mold is applied to the bulging portion of the mounting bracket. A sash anchor characterized in that a nail driving portion in a bulging portion is formed into a V-shaped divided piece that is divided into a plurality of portions through slits by forming radially. 取付金具の膨出部における釘打ち込み部分に形成した複数のＶ字状の分割片における両側のスリットの長さを釘頭の半径よりも長い長さに形成していることを特徴とする請求項１に記載のサッシアンカー。   The length of the slits on both sides of the plurality of V-shaped divided pieces formed in the nail driving portion in the bulging portion of the mounting bracket is formed to be longer than the radius of the nail head. The sash anchor according to 1. スリットが交差している釘の打ち込み部分の中心に凹部を形成していることを特徴とする請求項１に記載のサッシアンカー。   2. A sash anchor according to claim 1, wherein a recess is formed at the center of the nail driving portion where the slits intersect.
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JPS4868406U (en) * 1971-11-29 1973-08-30
JPS5224309U (en) * 1975-08-11 1977-02-21
JPS6269581U (en) * 1985-10-22 1987-05-01
JP2014148832A (en) * 2013-02-01 2014-08-21 Hideki Kawano Sash anchor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190060956A (en) * 2019-05-07 2019-06-04 세현산업 주식회사 Magnetic type embeded anchor and manufacturing method thereof
KR102002879B1 (en) 2019-05-07 2019-07-23 주식회사 브리오 Magnetic type embeded anchor and manufacturing method thereof

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