JP2006028932A

JP2006028932A - Foundation mounting structure by anchor bolt

Info

Publication number: JP2006028932A
Application number: JP2004210636A
Authority: JP
Inventors: Masao Nakanishi; 政夫中西
Original assignee: Sumitomo Forestry Co Ltd
Current assignee: Sumitomo Forestry Co Ltd
Priority date: 2004-07-16
Filing date: 2004-07-16
Publication date: 2006-02-02
Anticipated expiration: 2024-07-16
Also published as: JP4562444B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a foundation mounting structure by an anchor bolt capable of adjusting the height of a foundation to an upper way and a lower way even if a floor panel has been mounted by simple operation from under floor. <P>SOLUTION: The foundation mounting structure comprises a main anchor bolt 15 buried fixedly in a concrete foundation 11 in a state to place an upper end male screw section 15a in an opening recess section 14 formed in an upper surface 11a, an auxiliary anchor bolt 17 fixing the lower end part thereof to a plate member 16 placed to the lower surface of a foundation 12 in a state a lower end male screw section 17a is projected below, at the same time, fixing an upper end section to an upper surface section 12a of the foundation 12 by passing through the foundation 12 and a sleeve-like nut member 18 equipped with an upward female screw 18a and a downward female screw 18b used as reverse screws and screwing the upper end male screw section 15a of the main anchor bolt 15 and the lower end male screw section 17a of the auxiliary anchor bolt 17 to each other. The height of the foundation 12 can be adjusted by rotating the sleeve-like nut member 18 in a space section 13. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、アンカーボルトによる土台取付け構造に関し、特にコンクリート基礎の天端面との間にスペース部を間欠的に設けて当該天端面の上方に取り付けられる土台を、上下に高さ調整可能に設置するためのアンカーボルトによる土台取付け構造に関する。 TECHNICAL FIELD The present invention relates to a base mounting structure using anchor bolts, and in particular, a base that is intermittently provided between the top end surface of a concrete foundation and is mounted above the top end surface is installed so that the height can be adjusted up and down. The present invention relates to a base mounting structure using anchor bolts.

例えば木造住宅建築物の土台は、地盤面に支持させて設けられた布基礎等のコンクリート基礎の天端面に水平に設置され、これの上方に、根太、床パネル、下地合板パネル、敷居、床仕上材等が取り付けられることになる。 For example, the foundation of a wooden house building is installed horizontally on the top edge of a concrete foundation such as a cloth foundation that is supported by the ground surface, and above this is a joist, floor panel, base plywood panel, sill, floor Finishing materials will be attached.

また、コンクリート基礎の天端面に設置される土台は、単に天端面に載置しただけでは、精度良く水平に設置することが難しい。これの対処方法として、例えば楔状の土台スペーサを天端面と土台との間に打ち込んで土台を上昇させることにより、高さ調整を行うことが考えられるが、周囲の部分で土台が浮きやすくなって土台の支持力が低下すると共に、一旦上昇させた土台を再度下降させて高さ調整を行うことが困難だった。このようなことから、土台の高さ調整を容易に行えるようにする技術が開発されている（例えば、特許文献１参照）。 Moreover, it is difficult to install the foundation installed on the top end surface of the concrete foundation with high precision and accuracy simply by placing it on the top end surface. As a countermeasure for this, for example, it is conceivable to adjust the height by driving a wedge-shaped base spacer between the top end surface and the base to raise the base, but the base tends to float in the surrounding area. As the support capacity of the foundation declined, it was difficult to adjust the height by lowering the once raised foundation. For this reason, a technique has been developed that makes it easy to adjust the height of the base (see, for example, Patent Document 1).

特許文献１に記載の土台の支持構造によれば、図６に示すように、コンクリート基礎６０の天端面６１から上方に突出するアンカーボルト６２の先端雄ネジ部に、中心部分に雌ネジ部を有する土台受けプレート６３を螺合装着すると共に、この土台受けプレート６３の上方に、アンカーボルト６２を貫通させつつ土台６４を載置する。そして、土台受けプレート６３をアンカーボルト６２の先端雄ネジ部に沿って回転させることにより、土台６４を上下に移動して高さ調整を行った後、土台受けプレート６３の下方から緩み止めナット６５で締め付けると共に、先端雄ネジ部の上端を締め付けナット６６を介して土台６４の上端面に締着して、土台６４を固定するものである。
特許第３４６６８５９号公報 According to the base support structure described in Patent Document 1, as shown in FIG. 6, a female screw portion is provided at the center of the tip male screw portion of the anchor bolt 62 protruding upward from the top end surface 61 of the concrete foundation 60. The base receiving plate 63 is screwed and mounted, and the base 64 is placed above the base receiving plate 63 while penetrating the anchor bolts 62. Then, by rotating the base receiving plate 63 along the male screw portion of the anchor bolt 62, the base 64 is moved up and down to adjust the height, and then a locking nut 65 is secured from below the base receiving plate 63. At the same time, the upper end of the male screw portion is fastened to the upper end surface of the base 64 via a tightening nut 66 to fix the base 64.
Japanese Patent No. 34665959

一方、土台は木製の部材であることから、精度良く高さを調整して一旦取り付けた後に、乾燥収縮や湿気等の影響を受けて、土台にむくりや反り等を生じることにより、上下に高さの狂いが生じる場合がある。しかしながら、上記特許文献１の土台の支持構造によれば、土台受けプレート６３は、土台６４の上面側から締め付けナット６６によって押さえ付けられていることにより、上方への移動が規制され、また土台受けプレート６３を下方へ移動しても、これに伴って土台６４を下方に引き寄せることができない。したがって、根太や床パネルを取り付けた後の土台の高さ調整は、これらの根太や床パネル等を再度取り外して行う必要があり、例えば床下からの操作のみで高さ調整を行うことは困難だった。また、特に、土台６４の上方に敷居６７が設けられている場合には、乾燥収縮等による土台７４の高さの狂いの影響を受け易く、建具の開閉に支障を来すことになる。 On the other hand, since the base is a wooden member, after the height is adjusted and attached once, it is affected by drying shrinkage, moisture, etc., and the base is peeled off and warped. In some cases, it may cause an error. However, according to the base support structure of Patent Document 1, the base receiving plate 63 is pressed from the upper surface side of the base 64 by the tightening nut 66 so that the upward movement is restricted, and the base receiving plate 63 is also supported. Even if the plate 63 is moved downward, the base 64 cannot be pulled downward accordingly. Therefore, it is necessary to remove the joists and floor panels again after adjusting the joists and floor panels. For example, it is difficult to adjust the height only by operating from under the floor. It was. In particular, when the sill 67 is provided above the base 64, the base 74 is easily affected by a deviation in the height of the base 74 due to drying shrinkage or the like, and hinders the opening and closing of the joinery.

本発明は、このような従来の課題に着目してなされたものであり、例えば床下からの簡単な操作によって、床パネルや下地合板パネル等が取り付けられた後であっても、上方のみならず下方への土台の高さ調整を容易に行うことのできるアンカーボルトによる土台取付け構造を提供することを目的とする。 The present invention has been made paying attention to such a conventional problem. For example, even after a floor panel or a base plywood panel is attached by a simple operation from under the floor, the present invention is not limited to the above. An object of the present invention is to provide a base mounting structure using anchor bolts that can easily adjust the height of the base downward.

本発明は、コンクリート基礎の天端面との間にスペース部を間欠的に設けて当該天端面の上方に取り付けられる土台を、上下に高さ調整可能に設置するためのアンカーボルトによる土台取付け構造であって、前記スペース部において前記天端面に形成された開口凹部に上端雄ネジ部を配設した状態で、前記コンクリート基礎に埋設固定される主アンカーボルトと、前記土台の下面に配置されるプレート部材から下端雄ネジ部を下方に突出させた状態で当該プレート部材に下端部分が固定されると共に、前記土台を上下に貫通して上端部が前記土台の上面部に固定される副アンカーボルトと、逆ネジとなった上方雌ネジ及び下方雌ネジを備え、前記主アンカーボルトの上端雄ネジ部と前記副アンカーボルトの下端雄ネジ部とが同時に螺合されるスリーブ状ナット部材とからなり、前記スペース部における前記天端面と前記土台との間の隙間には、前記スリーブ状ナット部材の上端部分が前記開口凹部から突出して配置され、該上端部分の回転係止部に回転部材を係止して前記スリーブ状ナット部材を回転操作することにより、前記土台の上下の高さ調整を行うアンカーボルトによる土台取付け構造を提供することにより、上記目的を達成したものである。 The present invention is a foundation mounting structure with anchor bolts for installing a base that is intermittently provided between the top end face of a concrete foundation and mounted above the top end face so that the height can be adjusted up and down. A main anchor bolt embedded in and fixed to the concrete foundation in a state where an upper end male screw portion is disposed in an opening recess formed in the top end surface in the space portion, and a plate disposed on the lower surface of the foundation A sub-anchor bolt with a lower end portion fixed to the plate member in a state in which a lower end male screw portion protrudes downward from the member, and an upper end portion penetrating up and down through the base and being fixed to an upper surface portion of the base. An upper female screw and a lower female screw which are reverse screws, and the upper male screw portion of the main anchor bolt and the lower male screw portion of the sub-anchor bolt are screwed together. A sleeve-like nut member, and an upper end portion of the sleeve-like nut member projects from the opening concave portion in a gap between the top end surface and the base in the space portion, and the rotation portion of the upper end portion is The above object is achieved by providing a base mounting structure with anchor bolts that adjust the vertical height of the base by rotating the sleeve-like nut member while locking the rotary member to the stopper. It is.

また、本発明のアンカーボルトによる土台取付け構造によれば、前記開口凹部には、これの内周面に沿って保護スリーブが装着されていることが好ましい。 Moreover, according to the base mounting structure using the anchor bolt of the present invention, it is preferable that a protective sleeve is attached to the opening recess along the inner peripheral surface thereof.

さらに、本発明のアンカーボルトによる土台取付け構造によれば、前記土台の直上に敷居が設けられることが好ましい。 Furthermore, according to the base mounting structure using anchor bolts of the present invention, it is preferable that a sill is provided immediately above the base.

さらにまた、本発明のアンカーボルトによる土台取付け構造によれば、前記副アンカーボルトの上端部は、前記土台の上面部に形成された締着凹部において固定されることにより、当該上面部から上方に突出することなく設けられていることが好ましい。 Furthermore, according to the base mounting structure using the anchor bolt of the present invention, the upper end portion of the sub-anchor bolt is fixed in a fastening recess formed in the upper surface portion of the base, so that the upper end portion is upward from the upper surface portion. It is preferable that it is provided without protruding.

本発明のアンカーボルトによる土台取付け構造によれば、例えば床下からの簡単な操作によって、床パネルや下地合板パネル等が取り付けられた後であっても、上方のみならず下方への土台の高さ調整を容易に行うことができる。 According to the foundation mounting structure using the anchor bolt of the present invention, the height of the foundation not only above but also below is attached even after the floor panel or the base plywood panel is attached, for example, by a simple operation from under the floor. Adjustment can be performed easily.

図１に示す本発明の好ましい一実施形態に係るアンカーボルトによる土台取付け構造１０は、例えば木造住宅建築物において、地盤面に支持させて設けられた布基礎等のコンクリート基礎１１の上方に設置される木製の部材である土台１２に対して、当該土台１２が乾燥収縮や湿気等の影響を受けてむくりや反り等を生じることにより、上下に高さの狂いが生じた場合でも、高さの調整を容易にやり直すことができるようにするために採用されたものである。ここで、本実施形態によれば、木造住宅建築物は、例えば床下換気が可能な構造を備えており、床下に空気を導入したり床下から空気を排出できるように、コンクリート基礎１１の天端面１１ａに間隔をおいて複数配置した、例えば２０ｍｍ程度の厚さのスペーサ（図示せず）を介在させて、コンクリート基礎１１の上方に土台１２が設置されるようになっている。これによって、コンクリート基礎の天端面１１ａと土台１２との間には、例えば２０ｍｍ程度の高さのスペース部１３が間欠的に設けられることになり、これらのスペース部１３を介して床下換気が行われることになる。 A base mounting structure 10 using anchor bolts according to a preferred embodiment of the present invention shown in FIG. 1 is installed above a concrete foundation 11 such as a cloth foundation supported on a ground surface in a wooden house building, for example. Even if the base 12 that is a wooden member is affected by drying shrinkage, moisture, or the like, and is subject to peeling or warping, the height of the base 12 It was adopted so that the adjustment can be easily performed again. Here, according to the present embodiment, the wooden house building has a structure capable of underfloor ventilation, for example, and the top end surface of the concrete foundation 11 so that air can be introduced into or discharged from under the floor. A base 12 is placed above the concrete foundation 11 with a plurality of spacers (not shown) having a thickness of, for example, about 20 mm arranged at a distance from 11a. As a result, a space portion 13 having a height of about 20 mm, for example, is intermittently provided between the top end surface 11a of the concrete foundation and the base 12, and underfloor ventilation is performed through these space portions 13. It will be.

そして、本実施形態のアンカーボルトによる土台取付け構造１０は、コンクリート基礎１１の天端面１１ａとの間にスペース部１３を間欠的に設けて当該天端面１１ａの上方に取り付けられる土台１２を、上下に高さ調整可能に設置するための取付け構造であって、スペース部１３において天端面１１ａに形成された開口凹部１４に上端雄ネジ部１５ａを配設した状態で、コンクリート基礎１１に埋設固定される主アンカーボルト１５と、土台１２の下面に配置されるプレート部材１６から下端雄ネジ部１７ａを下方に突出させた状態で当該プレート部材１６に下端部分が固定されると共に、土台１２を上下に貫通して上端部１７ｂが土台１２の上面部１２ａに固定される副アンカーボルト１７と、逆ネジとなった上方雌ネジ１８ａ及び下方雌ネジ１８ｂを備え（図２参照）、主アンカーボルト１５の上端雄ネジ部１５ａと副アンカーボルト１７の下端雄ネジ部１７ａとが同時に螺合されるスリーブ状ナット部材１８とによって構成される。そして、スペース部１３におけるコンクリート基礎１１の天端面１１ａと土台１２との間の隙間には、スリーブ状ナット部材１８の上端部分が開口凹部１４から突出して配置され、この上端部分の回転係止部１８ｃに回転部材１９を係止してスリーブ状ナット部材１８を回転操作することにより、土台１２の上下の高さ調整を行うことができるようになっている。 And the base attachment structure 10 by the anchor bolt of this embodiment is provided with the base part 12 which installs the space part 13 intermittently between the top end surface 11a of the concrete foundation 11, and is attached above the said top end surface 11a up and down. It is a mounting structure for installation so that the height can be adjusted, and is embedded and fixed to the concrete foundation 11 in a state where the upper end male screw portion 15a is disposed in the opening concave portion 14 formed in the top end surface 11a in the space portion 13. While the lower end male screw portion 17a protrudes downward from the main anchor bolt 15 and the plate member 16 disposed on the lower surface of the base 12, the lower end portion is fixed to the plate member 16 and penetrates the base 12 up and down. Then, the secondary anchor bolt 17 whose upper end portion 17b is fixed to the upper surface portion 12a of the base 12, the upper female screw 18a which is a reverse screw, and the lower portion With a screw 18b (see FIG. 2), the upper end male screw portion 15a of the main anchor bolt 15 and the lower externally threaded portion 17a of the sub-anchor bolt 17 is constituted by a sleeve-shaped nut member 18 screwed simultaneously. The upper end portion of the sleeve-like nut member 18 is disposed so as to protrude from the opening recess 14 in the space between the top end surface 11a of the concrete foundation 11 and the base 12 in the space portion 13, and the rotation locking portion of this upper end portion The top and bottom height of the base 12 can be adjusted by engaging the rotating member 19 with 18 c and rotating the sleeve-shaped nut member 18.

本実施形態の土台取付け構造１０を構成する主アンカーボルト１５は、公知の各種のアンカーボルトと同様の構成を備えるものであり、図２にも示すように、その上端部分を除く下方部分をコンクリート基礎１１中に埋設固定して、強固なアンカー支持力を発揮できるようになっている。また上端雄ネジ部１５ａが形成された主アンカーボルト１５の上端部分は、コンクリート基礎１１の天端面１１ａに開口形成された開口凹部１４に、天端面１１ａから上方に突出することなくこれの中央部分に収容配置されることになる。 The main anchor bolt 15 constituting the base mounting structure 10 of the present embodiment has the same configuration as various known anchor bolts, and as shown in FIG. The anchor 11 is embedded and fixed in the foundation 11 so that a strong anchor supporting force can be exhibited. The upper end portion of the main anchor bolt 15 in which the upper end male screw portion 15a is formed is the central portion of the upper recessed portion 14 formed in the top end surface 11a of the concrete foundation 11 without protruding upward from the top end surface 11a. Will be housed and arranged.

ここで、開口凹部１４は、円形断面を有する垂直穴であって、後述するスリーブ状ナット部材１８を上下動可能に遊嵌できる程度の大きさの内径を備えている。また開口凹部１４には、これの内周面を覆うようにして円筒形状の保護スリーブ２０が装着されており、これによって当該内周面が強固に防護されることになる。また、コンクリート基礎１１を形成するためのコンクリートを打設する際に、主アンカーボルト１５の配設位置を囲む型枠内の所定の位置に、この保護スリーブ２０を取り付けておくことにより、当該保護スリーブ２０を型枠代わりとして、開口凹部１４をコンクリート基礎１１の天端面１１ａに容易に形成することが可能になる。 Here, the opening recess 14 is a vertical hole having a circular cross section, and has an inner diameter large enough to allow a sleeve-like nut member 18 to be described later to be freely fitted up and down. In addition, a cylindrical protective sleeve 20 is attached to the opening recess 14 so as to cover the inner peripheral surface thereof, and thus the inner peripheral surface is firmly protected. Further, when placing concrete for forming the concrete foundation 11, the protection sleeve 20 is attached to a predetermined position in a mold surrounding the position where the main anchor bolt 15 is disposed, thereby protecting the concrete. The opening recess 14 can be easily formed on the top end surface 11a of the concrete foundation 11 by using the sleeve 20 as a substitute for the formwork.

本実施形態の土台取付け構造１０を構成する副アンカーボルト１７は、例えば両端部に雄ネジ部を備える両ネジボルトからなり、その一方の雄ネジ部を下端雄ネジ部１７ａとして、プレート部材１６の中央から下方に突出させつつ、これよりも上方部分を垂直に立設させた状態で、当該プレート部材１６に溶接等によって一体として接合されている。これによって、プレート部材１６を土台１２の下面側に装着した際に、土台１２を上下に貫通して設けたボルト孔２１に副アンカーボルト１７が挿通され、その上端部１７ｂの雄ネジ部が、ナット２２を介して土台１２の上面部１２ａに固定されることになる。 The sub-anchor bolt 17 constituting the base mounting structure 10 of the present embodiment is composed of, for example, both screw bolts having male screw portions at both ends, and one male screw portion is used as the lower end male screw portion 17a, and the center of the plate member 16 is formed. The plate member 16 is integrally joined to the plate member 16 by welding or the like in a state where the upper portion thereof is vertically erected while projecting downward from the plate. Thus, when the plate member 16 is mounted on the lower surface side of the base 12, the sub-anchor bolt 17 is inserted into the bolt hole 21 provided through the base 12 up and down, and the male thread portion of the upper end portion 17b is It is fixed to the upper surface portion 12 a of the base 12 through the nut 22.

ここで、本実施形態によれば、副アンカーボルト１７の下端雄ネジ部１７ａよりも上方の部分の長さは、土台１２の高さを超えない長さとなっており、土台１２の上面部１２ａには、ボルト孔２１を囲んで締着凹部２３が形成されていている。副アンカーボルト１７の上端部１７ｂは、この土台１２の上面部１２ａに形成された締着凹部２３において締着固定されることにより、上面部１２ａから上方に突出することなく設けられる。これによって、土台１２の上方に下地合板パネル２４、敷居２５、床仕上材２６等を設置してゆく際に、副アンカーボルト１７の上端部１７ｂが邪魔になるのを回避することが可能になる。 Here, according to the present embodiment, the length of the portion above the lower end male screw portion 17a of the sub-anchor bolt 17 is a length that does not exceed the height of the base 12, and the upper surface portion 12a of the base 12 A fastening recess 23 is formed surrounding the bolt hole 21. The upper end portion 17b of the sub-anchor bolt 17 is provided without protruding upward from the upper surface portion 12a by being fastened and fixed in a fastening recess 23 formed in the upper surface portion 12a of the base 12. This makes it possible to avoid the upper end portion 17b of the sub-anchor bolt 17 from getting in the way when the base plywood panel 24, the sill 25, the floor finishing material 26, etc. are installed above the base 12. .

また、副アンカーボルト１７が接合されるプレート部材１６は、土台１２の底面の幅と略同様の幅を有する矩形平面形状の本体部１６ａと、本体部１６ａの一方の対向する側縁部から折れ曲がって立設する一対の幅止め部１６ｂとからなるコの字断面形状を有しており、土台１２の底面部分に沿って填め込むようにして装着される。また本体部１６ａの中央に設けたボルト固定孔１６ｃに副アンカーボルト１７を挿通させた状態で、当該副アンカーボルト１７がボルト固定孔１６ｃに接合固定されることになる。なお、本実施形態によれば、副アンカーボルト１７は、ボルト固定孔１６ｃの周縁部に溶接等によって接合固定されているが、例えばボルト固定孔１６ｃに合致させてナット部材をプレート部材１６の下面側に固定しておき、このナット部材を介して副アンカーボルト１７を、その突出長さを調整可能に固定することもできる。 The plate member 16 to which the sub-anchor bolts 17 are joined is bent from a rectangular planar main body portion 16a having a width substantially the same as the width of the bottom surface of the base 12, and one opposing side edge portion of the main body portion 16a. It has a U-shaped cross section consisting of a pair of width stop portions 16b standing upright, and is mounted so as to be fitted along the bottom surface portion of the base 12. Further, the secondary anchor bolt 17 is joined and fixed to the bolt fixing hole 16c in a state where the secondary anchor bolt 17 is inserted into the bolt fixing hole 16c provided in the center of the main body portion 16a. According to the present embodiment, the secondary anchor bolt 17 is joined and fixed to the peripheral portion of the bolt fixing hole 16c by welding or the like. For example, the nut member is matched with the bolt fixing hole 16c and the nut member is attached to the lower surface of the plate member 16. It is also possible to fix the auxiliary anchor bolt 17 via the nut member so that its protruding length can be adjusted.

本実施形態の土台取付け構造１０を構成するスリーブ状ナット部材１８は、図３に拡大して示すように、六角形断面の外周形状を有しており、その全体がスパナ等の回転部材１９（図２参照）を係止可能な回転係止部１８ｃを構成していると共に、その最大の外径が、開口凹部１４に装着される保護スリーブ２０に遊嵌可能な大きさとなっている。またスリーブ状ナット部材１８の内周面に形成された雌ネジは、例えば上方雌ネジ１８ａが左ネジ、下方雌ネジ１８ｂが右ネジとなった逆ネジ構造となっている。そして、土台取付け構造１０を設ける際には、プレート部材１６に固定された副アンカーボルト１７の下端雄ネジ部１７ａが上方雌ネジ１８ａに螺合されると共に、主アンカーボルト１５の上端雄ネジ部１５ａが下方雌ネジ１８ｂに螺合され、且つスリーブ状ナット部材１８は、上端部分の回転係止部１８ｃをスペース部１３における天端面１１ａと土台１２との間の隙間に突出配置した状態で、内周面が保護スリーブ２０によって覆われた開口凹部１４の内側に配設されることになる（図１参照）。 As shown in an enlarged view in FIG. 3, the sleeve-shaped nut member 18 constituting the base mounting structure 10 of the present embodiment has a hexagonal cross-sectional outer peripheral shape, and the whole is a rotating member 19 such as a spanner ( 2), and the maximum outer diameter of the rotation locking portion 18c can be loosely fitted to the protective sleeve 20 attached to the opening recess 14. The female screw formed on the inner peripheral surface of the sleeve-shaped nut member 18 has a reverse screw structure in which, for example, the upper female screw 18a is a left screw and the lower female screw 18b is a right screw. When the base mounting structure 10 is provided, the lower end male screw portion 17a of the sub-anchor bolt 17 fixed to the plate member 16 is screwed into the upper female screw 18a, and the upper end male screw portion of the main anchor bolt 15 is provided. 15a is screwed into the lower female screw 18b, and the sleeve-like nut member 18 is in a state in which the rotation locking portion 18c at the upper end portion protrudes into the gap between the top end surface 11a and the base 12 in the space portion 13, The inner peripheral surface is disposed inside the opening recess 14 covered with the protective sleeve 20 (see FIG. 1).

また、プレート部材１６の上面には、副アンカーボルト１７をボルト孔２１に挿通しつつ土台１２が取り付けられると共に、副アンカーボルト１７の上端部１７ｂは、締着凹部２３において土台１２の上面部１２ａに締着固定され、これによって本実施形態の土台取付け構造１０が形成されることになる。さらに、本実施形態によれば、土台１２の上方には、当該土台１２に支持させて、床部材である下地合板パネル２４、敷居２５、床仕上材２６等が設置されることになる。 Further, the base 12 is attached to the upper surface of the plate member 16 while inserting the sub anchor bolt 17 through the bolt hole 21, and the upper end portion 17 b of the sub anchor bolt 17 is connected to the upper surface portion 12 a of the base 12 in the fastening recess 23. Thus, the base mounting structure 10 of this embodiment is formed. Furthermore, according to the present embodiment, the base plywood panel 24, the sill 25, the floor finishing material 26, and the like, which are floor members, are installed above the base 12 and supported by the base 12.

そして、上述の構成を有する本実施形態のアンカーボルトによる土台取付け構造１０によれば、スペース部１３におけるコンクリート基礎１１の天端面１１ａと土台１２との間の例えば２０ｍｍ程度の高さの隙間に突出配置された、スリーブ状ナット部材１８の六角形断面の回転係止部１８ｃに対して、スパナ等の回転部材１９を係止してスリーブ状ナット部材１８を回転操作することにより、土台１２の上下の高さ調整を行うことになるが、本実施形態によれば、床下からの簡単な操作によって、下地合板パネル２４等の床部材が取り付けられた後であっても、上方のみならず下方への土台１２の高さ調整を容易に行うことができる。 And according to the base mounting structure 10 by the anchor bolt of this embodiment which has the above-mentioned structure, it protrudes in the clearance gap of the height of about 20 mm between the top end surface 11a of the concrete foundation 11 and the base 12 in the space part 13, for example. By rotating the sleeve-shaped nut member 18 by engaging the rotating member 19 such as a spanner with respect to the rotation-rotating locking portion 18c having a hexagonal cross section of the sleeve-shaped nut member 18 disposed, However, according to the present embodiment, even after the floor member such as the base plywood panel 24 is attached by a simple operation from below the floor, it is not only upward but also downward. The height of the base 12 can be easily adjusted.

すなわち、本実施形態によれば、主アンカーボルト１５の上端雄ネジ部１５ａ及び副アンカーボルト１７の下端雄ネジ部１７ａが同時に螺合される、スリーブ状ナット部材１８の上方雌ネジ１８ａと下方雌ネジ雌ネジ１８ｂは、逆ネジとなっており、且つスリーブ状ナット部材１８の上端部分の回転係止部１８ｃが、スペース部１３におけるコンクリート基礎１１の天端面１１ａと土台１２との間の隙間に配置されているので、この隙間に例えば床下空間から回転部材１９を挿入して回転係止部１８ｃに係止し、右方向又は左方向に回転操作すれば、スリーブ状ナット部材１８が回転して、これに螺合された主アンカーボルト１５の上端雄ネジ部１５ａと副アンカーボルト１７の下端雄ネジ部１７ａが、離れる方向或いは近づく方向に移動する。これによって、下地合板パネル２４等を特に取り外すことなく、乾燥収縮や湿気等の影響を受けて、土台１２にむくりや反り等を生じることにより上下に高さの狂いが生じた場合でも、上方のみならず下方への土台１２の高さ調整を容易にやり直すことが可能になる。 That is, according to the present embodiment, the upper female thread 18a of the sleeve-like nut member 18 and the lower female thread, in which the upper male thread part 15a of the main anchor bolt 15 and the lower male thread part 17a of the sub-anchor bolt 17 are screwed simultaneously. The screw female screw 18 b is a reverse screw, and the rotation locking portion 18 c at the upper end portion of the sleeve-like nut member 18 is in the gap between the top end surface 11 a of the concrete foundation 11 and the base 12 in the space portion 13. Since the rotating member 19 is inserted into the gap from, for example, the underfloor space and locked to the rotation locking portion 18c and is rotated to the right or left, the sleeve-shaped nut member 18 rotates. The upper end male threaded portion 15a of the main anchor bolt 15 and the lower end male threaded portion 17a of the sub-anchor bolt 17 that are screwed to the main anchor bolt 15 are moved away from or in the approaching direction. . Thus, without removing the base plywood panel 24 or the like in particular, only the upper part is affected even if the height is up and down due to peeling or warping of the base 12 due to the influence of drying shrinkage or moisture. Instead, it becomes possible to easily redo the height adjustment of the base 12 downward.

また、本実施形態によれば、土台１２の直上には敷居２５が設けられており、敷居２５及びこれの下方の土台１２に高さの狂いが生じると、この高さの狂いの影響を受けて、敷居２５に取り付けられる建具のスライド移動に障害を及ぼすことになりがちであるが、本実施形態によれば、上述のように、土台１２や敷居２５に乾燥収縮等による高さの狂いが生じた場合でも、高さの調整を容易にやり直すことが可能なので、建具が敷居２５に沿ってスライド移動しやすいように容易に修正することが可能になる。 Further, according to the present embodiment, the sill 25 is provided immediately above the base 12, and if a height deviation occurs in the sill 25 and the base 12 below the sill 25, it is affected by this height deviation. However, according to the present embodiment, as described above, the base 12 and the sill 25 may be out of height due to drying shrinkage or the like. Even if it occurs, the height can be easily adjusted again, so that the joinery can be easily corrected so that it can be easily slid along the sill 25.

なお、本発明は上記実施形態に限定されることなく種々の変更が可能である。例えば、開口凹部の内周面に沿って保護スリーブを装着する必要は必ずしもなく、副アンカーボルトの上端部を土台の上面部に形成された締着凹部において固定する必要は必ずしもない。また、本発明の土台取付け構造は、直上に敷居が設けられる土台に限定されることなく、その他の部分に配置される土台の取付け構造として採用することもできる。さらに、スリーブ状ナット部材の上端部分の回転係止部として、図４に示すように、スリーブ状ナット部材１８の断面形状よりも一回り大きな張出しナット部２７を一体接合し、この張出しナット部２７の大きな外径によって、スリーブ状ナット部材１８の回転操作をよりスムーズに行えるようにすることもできる。さらにまた、図５（ａ），（ｂ）に示すように、周面に凹凸刃２８ａが設けられた円盤プレート２８をスリーブ状ナット部材１８の上端部分に回転係止部として一体接合しておき、この円盤プレート２８をスペース部１３におけるコンクリート基礎１１の天端面１１ａと土台１２との間の隙間に配置し、例えばドライバ−２９の先端を凹凸刃２８ａに係止しつつ、スリーブ状ナット部材１８を回転操作するようにして良い。 The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, it is not always necessary to attach the protective sleeve along the inner peripheral surface of the opening recess, and it is not always necessary to fix the upper end portion of the sub-anchor bolt in the fastening recess formed in the upper surface portion of the base. Moreover, the base mounting structure of the present invention is not limited to a base on which a sill is provided directly above, but can also be employed as a base mounting structure disposed in other portions. Further, as shown in FIG. 4, an overhanging nut portion 27 that is slightly larger than the cross-sectional shape of the sleeve-like nut member 18 is integrally joined as a rotation locking portion of the upper end portion of the sleeve-like nut member. With the large outer diameter, the sleeve-like nut member 18 can be rotated more smoothly. Furthermore, as shown in FIGS. 5 (a) and 5 (b), a disk plate 28 having a concavo-convex blade 28a on its peripheral surface is integrally joined to the upper end portion of the sleeve-like nut member 18 as a rotation locking portion. The disk plate 28 is disposed in the space between the top end surface 11a of the concrete foundation 11 and the base 12 in the space 13 and, for example, the sleeve-like nut member 18 is engaged while the tip of the driver 29 is locked to the concavo-convex blade 28a. You may make it rotate.

本発明の一実施形態に係るアンカーボルトによる土台取付け構造の構成を説明する断面図である。It is sectional drawing explaining the structure of the base attachment structure by the anchor bolt which concerns on one Embodiment of this invention. 本発明の一実施形態に係るアンカーボルトによる土台取付け構造の構成を説明する分解断面図である。It is an exploded sectional view explaining the composition of the base attachment structure by the anchor bolt concerning one embodiment of the present invention. スリーブ状ナット部材の説明図である。It is explanatory drawing of a sleeve-shaped nut member. スリーブ状ナット部材の他の形態を例示する斜視図である。It is a perspective view which illustrates other forms of a sleeve-like nut member. スリーブ状ナット部材の他の形態を説明する、（ａ）は断面図、（ｂ）上面図である。The other form of a sleeve-shaped nut member is demonstrated, (a) is sectional drawing, (b) is a top view. 従来の土台取付け構造の構成を説明する断面図である。It is sectional drawing explaining the structure of the conventional base mounting structure.

Explanation of symbols

１０アンカーボルトによる土台取付け構造
１１コンクリート基礎
１１ａコンクリート基礎の天端面
１２土台
１３スペース部
１４開口凹部
１５主アンカーボルト
１５ａ主アンカーボルトの上端雄ネジ部
１６プレート部材
１７副アンカーボルト
１７ａ副アンカーボルトの下端雄ネジ部
１７ｂ副アンカーボルトの上端部
１８スリーブ状ナット部材
１８ａスリーブ状ナット部材の上方雌ネジ
１８ｂスリーブ状ナット部材の下方雌ネジ
１９回転部材（スパナ）
２０保護スリーブ
２１ボルト孔
２２ナット
２３締着凹部
２４下地合板パネル
２５敷居
２６床仕上材
DESCRIPTION OF SYMBOLS 10 Base mounting structure by anchor bolt 11 Concrete foundation 11a Top end surface 12 of concrete foundation 13 Base 13 Space part 14 Opening recessed part 15 Main anchor bolt 15a Upper end male thread part 16 of main anchor bolt Plate member 17 Sub anchor bolt 17a Lower end of sub anchor bolt Male thread portion 17b Upper end portion 18 of sub-anchor bolt Sleeve-shaped nut member 18a Upper female screw 18b of sleeve-shaped nut member Lower female screw 19 of sleeve-shaped nut member Rotating member (spanner)
20 Protective sleeve 21 Bolt hole 22 Nut 23 Fastening recess 24 Base plywood panel 25 Sill 26 Floor finish

Claims

A foundation mounting structure with anchor bolts for installing a base that is intermittently provided between the top end face of the concrete foundation and mounted above the top end face so that the height can be adjusted up and down,
A main anchor bolt embedded and fixed in the concrete foundation in a state where an upper end male screw portion is disposed in an opening recess formed in the top end surface in the space portion;
The lower end portion is fixed to the plate member in a state where the lower end male screw portion protrudes downward from the plate member disposed on the lower surface of the base, and the upper end passes through the base in the vertical direction and the upper end portion is the upper surface of the base. A secondary anchor bolt fixed to the part,
It comprises an upper female screw and a lower female screw that are reverse threads, and comprises a sleeve-like nut member in which the upper male screw part of the main anchor bolt and the lower male screw part of the sub-anchor bolt are screwed together,
In the space between the top end surface and the base in the space portion, an upper end portion of the sleeve-like nut member is disposed so as to protrude from the opening recessed portion, and the rotation member is locked to the rotation locking portion of the upper end portion. A base mounting structure using anchor bolts that adjusts the vertical height of the base by rotating the sleeve-like nut member.

2. A base mounting structure using an anchor bolt according to claim 1, wherein a protective sleeve is attached to the opening recess along an inner peripheral surface thereof.

The base mounting structure using anchor bolts according to claim 1 or 2, wherein a sill is provided immediately above the base.

The upper end portion of the sub-anchor bolt is fixed in a fastening recess formed in the upper surface portion of the base, and is provided without protruding upward from the upper surface portion. Mounting structure with anchor bolts.