JP3193768U

JP3193768U - Anchor bolt centering jig

Info

Publication number: JP3193768U
Application number: JP2014003796U
Authority: JP
Inventors: 美宗太田
Original assignee: 有限会社太田鉄建工業
Priority date: 2014-06-30
Filing date: 2014-06-30
Publication date: 2014-10-23
Anticipated expiration: 2024-06-30

Abstract

【課題】保管・管理及び取り扱いを簡素化し且つ軽量化した、建築物の柱脚部材を基礎コンクリート上に屹立固設する際に使用する芯出し治具を提供する。【解決手段】芯出し治具は、少なくとも治具本体１にテーパー内径面６と、このテーパー内径面６に連接して締付ナットの座面５を削成することにより、治具本体１の上部に陥凹部を形成したことを特徴とする。【選択図】図２Provided is a centering jig used when a column base member of a building is erected and fixed on foundation concrete, which is simplified and lightened in storage, management and handling. A centering jig includes a taper inner surface 6 at least on a jig body 1 and a seating surface 5 of a tightening nut connected to the taper inner surface 6 to cut the jig body 1. A recess is formed in the upper part. [Selection] Figure 2

Description

この考案は建築物の柱脚部材を基礎コンクリート上に載置固定する際に該柱脚部材が傾斜して取り付けられるのを防止するために採用されるアンカーボルト芯出し治具の改良に関するものである。 This invention relates to an improvement of an anchor bolt centering jig employed to prevent the column base member from being inclined and mounted when the column base member of a building is placed and fixed on the foundation concrete. is there.

上述した芯出し治具とその取り扱い方については、本件出願人が先に出願した特願平８−８８７４５号公報で既に明示している。即ち、図１に示す如く基礎コンクリートＡに埋設された数本のアンカーボルトＢに対し、柱脚部材Ｃに設けたベースプレートＤの各取付穴Ｅを臨ませ、締付ナットＦを螺合して柱脚部材Ｃを基礎コンクリートＡ上に固設するにあたり、ナットＦで固定する前に、予め少なく共２個以上の芯出し治具本体Ｇを所定のアンカーボルトＢに挿通させておき、これをナットＦで徐々に締付してゆく。かくして治具本体Ｇの外径テーパー面Ｇ１がベースプレートＤの取付穴Ｅに圧接しながら嵌入してゆくので、テーパー面の求心作用により各アンカーボルトＢはベースプレートＤの取付穴Ｅに大略均等な隙間をもって挿通し、芯出し調整が行われて、柱脚部材Ｃは直立状態に維持され、同時に治具本体Ｇを介して柱脚部材Ｃは仮止めされる。そして、仮止め後は、残りのアンカーボルトＢに直接ナットＦを螺合して締付け、次いで上記治具本体Ｇを取り外して、これにナットＦを螺合固設すれば、柱脚部材Ｃは基礎コンクリートＡ上に屹立固定されるものである。 The above-mentioned centering jig and how to handle it have already been specified in Japanese Patent Application No. 8-88745 filed earlier by the present applicant. That is, as shown in FIG. 1, several anchor bolts B embedded in the foundation concrete A face each mounting hole E of the base plate D provided in the column base member C, and the fastening nut F is screwed together. Before fixing the column base member C on the basic concrete A, before fixing with the nut F, at least two or more centering jig bodies G are inserted into the predetermined anchor bolts B in advance. Tighten gradually with nut F. Thus, the outer diameter tapered surface G1 of the jig body G is fitted into the mounting hole E of the base plate D while being pressed into contact with the mounting hole E of the base plate D. Therefore, the anchor bolts B are substantially spaced apart from the mounting holes E of the base plate D by the centripetal action of the tapered surface. The column base member C is maintained in an upright state, and at the same time, the column base member C is temporarily fixed via the jig body G. After the temporary fixing, the nut F is directly screwed to the remaining anchor bolt B and tightened, and then the jig body G is removed, and the nut F is screwed and fixed thereto. It is fixed upright on the foundation concrete A.

上述した従来の芯出し治具においては、芯出し機能自体に何ら問題点は見当たらないものの、保管上、取り扱い上および重量面でマイナス面があった。 In the above-described conventional centering jig, no problems are found in the centering function itself, but there are negative aspects in terms of storage, handling and weight.

即ち、具体的には上記芯出し治具本体Ｇにあっては、各作業現場毎に繰り返し使用されるものであることと、アンカーボルトのねじサイズ毎（５〜６種類）によって多種にわたり多数準備する必要があること等が相まって大小の治具本体が入り混じってしまい、著しく使い勝手が悪いばかりでなく工事現場での保管・管理に煩わしさを伴っている。又、数が増すと重量面でもその持ち運びに不便を被っていた。 Specifically, in the centering jig body G, a large number of preparations are prepared depending on the fact that it is repeatedly used for each work site and for each screw size (5 to 6 types) of anchor bolts. This requires a large and small jig body to be mixed together, which is not only extremely inconvenient but also troublesome to store and manage at the construction site. Also, as the number increased, it was inconvenient to carry in terms of weight.

本考案は上記芯出し治具を改良して、上述した不具合を解消せんとしたもので、建築物の基礎コンクリート上に柱脚部材を立設する際に用いられる芯出し治具において、図２に示す如く該芯出し治具本体１の外径部分は、テーパー部２と、このテーパー部２に連接する大径の真円頭部３により構成し、内径部分にはアンカーボルトの外径が適宜遊嵌するサイズに穿設した真円部４と、この真円部に続きアンカーボルトに螺合するナットの密着座面５とこの座面５に連接して末広がりの内径テーパー面６を持つ陥凹部を形成した芯出し治具本体１を提供するものである。 The present invention is an improvement of the above-mentioned centering jig to eliminate the above-mentioned problems. In the centering jig used when standing a column base member on the foundation concrete of a building, FIG. As shown in FIG. 2, the outer diameter portion of the centering jig main body 1 is composed of a tapered portion 2 and a large-diameter round head 3 connected to the tapered portion 2, and the outer diameter of the anchor bolt is on the inner diameter portion. A perfect circle portion 4 drilled to a size that fits appropriately, a close-contact seat surface 5 of a nut that is screwed to an anchor bolt following the perfect circle portion, and an inner diameter tapered surface 6 that is connected to the seat surface 5 and widens toward the end. A centering jig main body 1 in which a recessed portion is formed is provided.

上述した本考案に係る芯出し治具によれば、例えばアンカーボルトのサイズがＭ３０の場合、治具本体１の各部の寸法関係を次の如く構成して作製する。先ず、外径テーパー部２の長さＬ１と内径真円部４の長さｌ１を約１２ｍｍ程度で同じ長さとし、全長Ｌ２をｌ１、Ｌ１の約倍の２２〜２４ｍｍ程度の長さとし、且つ真円頭部３の直径ｄ１を５５ｍｍ、真円内径４の直径ｄ２を３５ｍｍに削成すると共に座面５の外縁部直径ｄ３を４６ｍｍ程度に形成する。 According to the above-described centering jig according to the present invention, for example, when the size of the anchor bolt is M30, the dimensional relationship of each part of the jig body 1 is configured as follows. First, the length L1 of the outer diameter taper portion 2 and the length l1 of the inner diameter perfect circle portion 4 are about 12 mm and the same length, the total length L2 is about 22 to 24 mm, which is about twice as long as l1 and L1, and is true. The diameter d1 of the circular head 3 is cut to 55 mm, the diameter d2 of the perfect circle inner diameter 4 is cut to 35 mm, and the outer edge diameter d3 of the seating surface 5 is formed to about 46 mm.

而して、本考案に係る治具本体１の重量は、在来品の半分近くで約１５０グラム（鋼製）前後に収められ、著しく軽量化したものとなる。又、本考案によれば、図３の如く治具本体１を１０個積み重ねても、長さ２００ｍｍ、太さ５７ｍｍ程度の軟質で半透明な樹脂製又は紙製の筒状収納ケース７に収納可能で、その保管・管理や持ち運びは至極便利となるばかりでなく紛失の恐れなく、実用的価値大なるものがある。 Thus, the weight of the jig body 1 according to the present invention is about 150 grams (made of steel) in the vicinity of half of the conventional product, and is significantly reduced in weight. In addition, according to the present invention, even when 10 jig bodies 1 are stacked as shown in FIG. It is possible to store, manage and carry it, which is not only convenient but also has a practical value without fear of loss.

従来の芯出し治具の使用態様を示す斜視図である。 It is a perspective view which shows the usage condition of the conventional centering jig. 本考案に係る芯出し治具を示す図で〈イ〉は斜視図、（ロ）は一部縦断正面図である。 It is a figure which shows the centering jig | tool which concerns on this invention. 本考案に係る芯出し治具の収納例を示す正面図である。 It is a front view which shows the example of accommodation of the centering jig which concerns on this invention.

本考案の実施形態は、前述した従来例と変わる事がないので、その説明は省略する。 Since the embodiment of the present invention is not different from the above-described conventional example, the description thereof is omitted.

上述例において、本考案に係る治具本体１のサイズをＭ３０用に限定して説明したが、他のサイズのアンカーボルトであっても要旨を逸脱することなく、寸法関係を任意適当に選定して製作すれば良い。又、治具本体１の材質はスチール製のものを例にとって説明したが、硬質樹脂製であっても良く、こうした樹脂製にすれば一段と軽量化が達成される。 In the above example, the size of the jig main body 1 according to the present invention is limited to that for M30. However, even for anchor bolts of other sizes, the dimensional relationship can be arbitrarily selected without departing from the gist. You can make it. The material of the jig body 1 has been described by taking steel as an example, but it may be made of hard resin, and if it is made of such resin, the weight can be further reduced.

本考案は芯出し治具本体の頭部に陥凹部を形成したことにより、その重量面、保管・管理面および取り扱い上従来に比し格段と有意義なものとなり、実用的価値大なるものがある。 In the present invention, by forming a recess in the head of the centering jig body, the weight, storage and management, and handling become significantly more significant than before, and there is a great practical value. .

１・・・・治具本体
２・・・・外径テーパー部
３・・・・真円頭部
４・・・・内径真円部
５・・・・座面
６・・・・内径テーパー面
７・・・・収納ケース
Ｌ１・・・外径テーパー部長さ
ｌ１・・・内径真円部長さ
Ｌ２・・・全長
ｄ１・・・真円頭部外径
ｄ２・・・真円頭部内径
ｄ３・・・座部外縁直径
Ａ・・・・基礎コンクリート
Ｂ・・・・アンカーボルト
Ｃ・・・・柱脚部材
Ｄ・・・・ベースプレート
Ｅ・・・・取付穴
Ｆ・・・・ナット
Ｇ・・・・従来の治具本体DESCRIPTION OF SYMBOLS 1 ... Jig body 2 ... Outer diameter taper part 3 ... Perfect circle head 4 ... Inner diameter perfect circle part 5 ... Seat surface 6 ... Inner diameter taper surface 7... Storage case L1... Outer diameter taper portion length l1... Inner diameter true circle length L2... Total length d1 true circle head outer diameter d2. ··· Seat outer edge diameter A ··· Foundation concrete B ··· Anchor bolt C ··· Column base member D ··· Base plate E · · · Mounting hole F · · · Nut G · · · ... Conventional jig body

Claims

In a centering jig used for fixing a column base member of a building on foundation concrete, at least a jig inner surface 1 has a tapered inner diameter surface 6 and a bearing surface of a tightening nut connected to the tapered inner diameter surface 6. An anchor bolt centering jig, wherein a recess is formed in the upper part of the jig body 1 by cutting 5.