JP3673204B2

JP3673204B2 - Column base hardware

Info

Publication number: JP3673204B2
Application number: JP2001308550A
Authority: JP
Inventors: 藤原恭史
Original assignee: 株式会社トーア
Priority date: 2001-10-04
Filing date: 2001-10-04
Publication date: 2005-07-20
Anticipated expiration: 2021-10-04
Also published as: JP2003113647A

Description

【０００１】
【産業上の利用分野】
本発明は、木造建物の柱を基礎コンクリートに直接（土台を介しないで）固定するために用いる柱脚金物に関するものである。
【０００２】
【従来の技術】
例えば、ＺマークやＣマークの表示金物の一つとして挙げられているものがあり、それは基礎コンクリートに埋入させるアンカー部の上端に柱の下部を嵌合して止着するＵ字形の組付け部を設けた構造のものとなっている。
【０００３】
【発明が解決しようとする課題】
前記従来例は、玄関の独立柱やバルコニーの受柱を基礎コンクリート（独立基礎）上に立設するために用いることを前提としたものであるため、通し柱や管柱を基礎コンクリートに直接固定するには土台との取合いや基礎コンクリートの構築上不都合があるため、前記通し柱等に適用でき、固定強度の要求を満足させる、斬新な構造の柱脚金物が望まれている。
【０００４】
本発明は、この要求に答えるものの一つとして提案するものである。
【０００５】
【課題を解決するための手段】
アンカーボルトとこれに螺合するナットによって基礎コンクリートに締付ける基盤と、該基盤の相対する両側に立設した一対の脚部片を備えた脚材の前記脚部片に、該脚部片間において互いに一致する透孔を横設すると共に、柱に止着手段によって止着する組付け材の、前記柱の下面に重合して脚材の前記脚部片上に載置する組付け基板に、前記脚部片間に介在させる緊締受を設け、該緊締受に、前記透孔を通じて前記脚部片間に架設する緊締杆がそれぞれ圧接する一対の傾斜受縁を上方方向に漸次互いに近接させて設けた構成とするのである。
【０００６】
【作用】
基礎コンクリートに立設したアンカーボルトとこれに螺合するナットによって脚材を基盤において基礎コンクリートに締付け固定する一方、柱に止着手段によって止着した組付け材の柱の下面に重合した組付け基板を、脚材の脚部片上に載置して該脚部片間に緊締受を介在させるようにして柱を前記脚材を介して基礎コンクリート上に起立させ、脚部片に設けた透孔を通じて緊締杆を打込むと、該緊締杆は前記緊締受に備えた傾斜受縁に圧接し、傾斜受縁のテーパ形状によって柱を伴って組付け材を引き寄せつつ脚部片間に架設され、柱は基礎コンクリートに立設状態で固定される。
【０００７】
【実施例】
図面は本発明に係る柱脚金物の一実施例を示し、図１は使用状態の縦断面図、図２は図１の縦断面図、図３は分解斜視図である。
【０００８】
実施例の柱脚金物は、脚材Ａと組付材Ｂを互いに組付けるようにして柱ｐを基礎コンクリートｃ上に立設固定するものであって、脚材Ａは、基盤１の両側に脚部片２，２を相対して立設し、脚部片２の上端に前記基盤１の直上に位置する上部片３を連設して上部片３，３間に細隙４を設けた平面視方形立方体で構成したもので、脚部片２の上部側には、該脚部片２，２間においては互いに一致する一対一組とする透孔５，５を二組設け、基盤１の中央部位には窓孔６を設けたものである。
【０００９】
細隙４の中央部は大径部４ａと成し、該大径部４ａを通じて工具を脚材Ａ内に挿入して窓孔６より突出するアンカーボルト７に螺合した締付けナット８の締付け操作を行えるようにしてある。
【００１０】
また、脚材Ａは、基礎コンクリートｃにアンカー部を埋入させて立設したアンカーボルト７の先端側の螺子部（上端）７´を窓孔６に貫通させて組合わせるようにして基礎コンクリートｃに載置し、前記螺子部７´に前記締付けナット８を座金１９を介して螺合して締付け基礎コンクリートｃに基盤１において固定して用いるのである。
【００１１】
なお、窓孔６は、アンカーボルト７の螺子部７´を貫通できる大きさの径であれば充分ではあるが、適宜の形状に、また、適宜の大きさの径にすることによりアンカーボルト７の施工誤差を吸収することができる。
【００１２】
前記組付け材Ｂは、脚材Ａの平面視方形（柱の断面方形）状と一致する組付け基板１０の上面中央に嵌挿杆１１を立設し、下面に前記一対二組の透孔５，５、５，５の各組に対応するようにして一対の緊締受１２，１２を設けて構成する。
【００１３】
嵌挿杆１１は中間部の適所に前記柱ｐに設けた貫通孔１３と一致するようにして透孔１４を設けたもので、また、緊締受１２は組付け基板１０側の基部を細径部１２ａ、先端側を大径部１２ｂと成し、これら細径部１２ａと大径部１２ｂとの間に、前記組付け基板１０方向すなわち上方方向に漸次互いに近接する傾斜受縁１６，１６´を設け、傾斜受縁１６，１６´は、前記細径部１２ａと大径部１２ｂ間に介在させた円錐台部の一部で構成したものである。
【００１４】
また、実施例の緊締受１２は、頭部に隣接する根部をボルト先端方向に漸次縮径する円錐台形状としたボルトの中間部を切断して頭部側を前記組付け基板１０に熔接して構成したもので、実施例の形状に限定する必要はないし、単一なものでも良い（従って、透孔１４は一対のみとなる）。
【００１５】
前記組付け材Ｂは、柱ｐの下端面を開口して設けた嵌合穴１７に嵌挿杆１１を嵌挿して組付け基板１０を柱ｐの下端面に重ね合わせ、嵌合穴１７に連通させて柱ｐに設けた前記貫通孔１３を通じて透孔１４にドリフトピン１８を嵌挿、打込むことにより柱ｐに組付けられ、この組付けた状態のまま、緊締受１２の細径部１２ａを細隙４に横方向から係合するようにして緊締受１２を脚材Ａの脚部片２，２間に介在させ、脚部片２の透孔５を通じて緊締杆９を脚材Ａ内に打込むと、緊締杆９は緊締受１２に備えた傾斜受縁１６，１６´に圧接し、該傾斜受縁１６，１６´のテーパ形状によって柱ｐを伴う組付け材Ｂを引き寄せつつ、脚部片２，２間に架設され、柱ｐを基礎コンクリートｃ上に立設状態で固定することになる。
【００１６】
なお、細隙４部は、緊締受１２の細径部１２ａの径とその隙間幅が一致していることが望ましく、脚材Ａの上部片３の細隙４側の縁部が細径部１２ａに接することにより緊締受１２すなわち柱ｐの緊締杆９の長手方向に沿う移動が尚一層規制できる。もっとも、緊締杆９を脚部片２，２杆に架設する際に、該緊締杆９が傾斜受縁１６，１６´に圧接する位置関係にしてあるから、脚材Ａと組付け材Ｂは互いに確実に固定することができ、細隙４すなわち上部片３は省略しても不都合はない。
【００１７】
緊締杆９と傾斜受縁１６の圧接関係による脚材Ａと組付け材Ｂとの固定関係が維持されるのであれば、実施例の符号１６´で示す傾斜受け縁に接する緊締杆９は省略しても良い。
【００１８】
図示２１は、基礎パッキン（スペーサ）で、このパッキンを土台ｍと基礎コンクリートｃとの間に介在させることにより、該パッキン２１の介在していないところでは土台ｍと基礎コンクリートｃとの間で隙間が生じて床下と屋外との通気路が形成される。実施例では、柱ｐ直下にもこのパッキン２１を配してあるが、省略しても良いことはもちろんである。
【００１９】
組付け基板１０、脚材Ａ及び柱ｐは、互いに同じ大きさの方形にしたのは、壁や床面の施工が円滑に行えるからで、脚材Ａの側面を開口してあるのは、締付けナット８の必要に応じた増締めを行うためである。
【００２０】
【発明の効果】
本発明は、前記の通りの構成であるから、柱を基礎コンクリートに直接固定することのできる柱脚金物を提供でき、該柱脚金物は、基礎コンクリート側と柱側のそれぞれに予め取付けておくものの２部材より成り、該２部材を組付けて基礎コンクリートに柱を立設する状態を得るものであるから、管柱や通し柱の柱脚金物として施工作業上能率的な製品を提供できる。
【図面の簡単な説明】
【図１】使用状態の縦断面図。
【図２】図１の縦断面図。
【図３】分解斜視図。
【符号の説明】
Ａ脚材
Ｂ組付け材
１基盤
２脚部片
５透孔
７アンカーボルト
８ナット
９緊締杆
１２緊締受
１６傾斜受縁[0001]
[Industrial application fields]
The present invention relates to a column base used for fixing a pillar of a wooden building directly to a foundation concrete (without a foundation).
[0002]
[Prior art]
For example, there are some that are listed as one of the Z mark and C mark display hardware, which is a U-shaped assembly that fits and fixes the lower part of the column to the upper end of the anchor part embedded in the foundation concrete It has a structure with a portion.
[0003]
[Problems to be solved by the invention]
The conventional example is based on the premise that the independent pillar of the entrance and the supporting pillar of the balcony are used for standing on the foundation concrete (independent foundation), so the through pillar and the pipe pillar are directly fixed to the foundation concrete. Since there is a problem in the construction with the foundation and the foundation concrete, there is a demand for a column base metal with a novel structure that can be applied to the through-columns and the like, and that satisfies the requirement of fixed strength.
[0004]
The present invention is proposed as one of answers to this demand.
[0005]
[Means for Solving the Problems]
Between the leg pieces, the base piece to be fastened to the foundation concrete by an anchor bolt and a nut screwed to the anchor bolt, and the leg piece of the leg member provided with a pair of leg pieces standing on opposite sides of the base. The assembly board that is horizontally disposed with the corresponding through holes and that is assembled to the bottom surface of the column of the assembly material that is secured to the column by the fastening means and is placed on the leg piece of the leg material, Provided with a clamp receiver interposed between the leg pieces, and provided with a pair of inclined receiving edges to which the clamps laid between the leg pieces through the through-holes are in pressure contact with each other in the upward direction. The configuration is as follows.
[0006]
[Action]
The anchor bolts standing on the foundation concrete and the nuts screwed to the anchor bolts fasten and fix the legs to the foundation concrete on the foundation, while the assembly is superposed on the lower surface of the pillar of the assembly material secured to the pillar by fastening means The substrate is placed on the leg piece of the leg member, and the column is erected on the foundation concrete via the leg member so that the clamp is interposed between the leg piece pieces, and the transparent piece provided on the leg piece is provided. When the tightening rod is driven through the hole, the tightening rod is pressed against the inclined receiving edge provided in the tightening support, and is constructed between the leg pieces while pulling the assembly material with the column by the tapered shape of the inclined receiving edge. The pillar is fixed to the foundation concrete in a standing state.
[0007]
【Example】
The drawings show one embodiment of the column base metal object according to the present invention, FIG. 1 is a longitudinal sectional view in use, FIG. 2 is a longitudinal sectional view of FIG. 1, and FIG.
[0008]
The column base hardware of the embodiment is to fix the column p upright on the foundation concrete c so that the leg A and the assembly B are assembled to each other. The leg pieces 2 and 2 are erected relative to each other, and an upper piece 3 positioned immediately above the base 1 is connected to the upper end of the leg piece 2 to provide a slit 4 between the upper pieces 3 and 3. It is composed of a rectangular cube in a plan view. On the upper side of the leg piece 2, two pairs of through-holes 5, 5 are provided in the leg portion 2, 2 that are in a pair, and the base 1 A window hole 6 is provided in the central portion of the.
[0009]
The central portion of the slit 4 is a large-diameter portion 4a, and a tightening operation of a tightening nut 8 is inserted through the large-diameter portion 4a into a leg member A and screwed into an anchor bolt 7 protruding from the window hole 6. Can be done.
[0010]
Further, the leg material A is a foundation concrete in which the screw portion (upper end) 7 ′ on the tip side of the anchor bolt 7 erected by burying the anchor portion in the foundation concrete c is passed through the window hole 6 and combined. It is placed on c, and the fastening nut 8 is screwed onto the screw portion 7 'via a washer 19 and fixed to the fastening foundation concrete c on the base 1.
[0011]
The window hole 6 is sufficient if it has a diameter that can penetrate the screw portion 7 ′ of the anchor bolt 7, but the anchor bolt 7 can be formed into an appropriate shape and an appropriate size. The construction error can be absorbed.
[0012]
In the assembly material B, an insertion rod 11 is erected in the center of the upper surface of the assembly substrate 10 that coincides with the shape of the leg material A in a plan view (a square cross section of the column), and the pair of through holes on the lower surface. A pair of tightening receivers 12 and 12 are provided so as to correspond to the respective groups of 5, 5, 5, and 5.
[0013]
The insertion rod 11 is provided with a through hole 14 at an appropriate position in the middle so as to coincide with the through hole 13 provided in the column p, and the tightening support 12 has a small diameter at the base on the assembly board 10 side. The portion 12a has a large-diameter portion 12b on the tip side, and the inclined receiving edges 16, 16 'gradually approaching each other in the direction of the assembly substrate 10, that is, in the upward direction, between the small-diameter portion 12a and the large-diameter portion 12b. The inclined receiving edges 16 and 16 'are constituted by a part of a truncated cone part interposed between the small diameter part 12a and the large diameter part 12b.
[0014]
Further, the tightening receiver 12 of the embodiment cuts an intermediate portion of a bolt having a truncated cone shape in which a root portion adjacent to the head portion is gradually reduced in the bolt tip direction and welds the head portion side to the assembly substrate 10. It is not necessary to limit to the shape of an Example, and a single thing may be sufficient (thus, the through-hole 14 becomes only one pair).
[0015]
The assembly material B is inserted into the fitting hole 17 provided by opening the lower end surface of the column p, and the assembly board 10 is overlaid on the lower end surface of the column p by inserting the insertion rod 11 into the fitting hole 17. The drift pin 18 is inserted into the through-hole 14 through the through-hole 13 provided in the column p so as to communicate with the column p, and the drift pin 18 is assembled to the column p. The fastening receiver 12 is interposed between the leg pieces 2 and 2 of the leg material A so as to engage the slit 4 with the slit 4 from the lateral direction, and the fastening rod 9 is inserted into the leg material A through the through hole 5 of the leg piece 2. When driven in, the tightening rod 9 comes into pressure contact with the inclined receiving edges 16 and 16 'provided in the tightening receiver 12, and the assembly material B with the column p is drawn by the tapered shape of the inclined receiving edges 16 and 16'. It is constructed between the leg pieces 2 and 2, and the column p is fixed on the foundation concrete c in a standing state.
[0016]
The slit 4 portion preferably has the same diameter as the narrow diameter portion 12a of the tightening receiver 12 and the gap width, and the edge of the upper piece 3 of the leg A on the slit 4 side is the small diameter portion. By contact with 12a, the movement of the tightening receiver 12, that is, the column p along the longitudinal direction of the tightening rod 9, can be further restricted. However, when the tightening rod 9 is installed on the leg pieces 2 and 2, the tightening rod 9 is in a positional relationship where it is pressed against the inclined receiving edges 16, 16 ′. They can be securely fixed to each other, and there is no inconvenience even if the slit 4, that is, the upper piece 3 is omitted.
[0017]
If the fixed relationship between the leg material A and the assembly material B by the pressure contact relationship between the tightening bar 9 and the inclined receiving edge 16 is maintained, the tightening bar 9 in contact with the inclined receiving edge indicated by reference numeral 16 'in the embodiment is omitted. You may do it.
[0018]
21 is a foundation packing (spacer). By interposing this packing between the foundation m and the foundation concrete c, there is a gap between the foundation m and the foundation concrete c where the packing 21 is not present. Occurs to form an air passage between the floor and the outdoors. In the embodiment, this packing 21 is also arranged directly under the pillar p, but it is needless to say that it may be omitted.
[0019]
The reason why the assembly board 10, the leg material A, and the pillar p are squares of the same size is that the wall and floor surface can be smoothly constructed. This is because the tightening nut 8 is tightened as necessary.
[0020]
【The invention's effect】
Since the present invention is configured as described above, it is possible to provide a column base metal that can directly fix the column to the foundation concrete, and the column base metal is attached in advance to each of the foundation concrete side and the column side. Since the two members are assembled and the two members are assembled to obtain a state in which a column is erected on the foundation concrete, an efficient product in terms of construction work can be provided as a column base or a column base for a through column.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a use state.
FIG. 2 is a longitudinal sectional view of FIG.
FIG. 3 is an exploded perspective view.
[Explanation of symbols]
A Leg material B Assembly material 1 Base 2 Leg piece 5 Through hole 7 Anchor bolt 8 Nut 9 Tightening rod 12 Tightening receiver 16 Inclined edge

Claims

アンカーボルトとこれに螺合するナットによって基礎コンクリートに締付ける基盤と、該基盤の相対する両側に立設した一対の脚部片を備えた脚材の前記脚部片に、該脚部片間において互いに一致する透孔を横設すると共に、柱に止着手段によって止着する組付け材の、前記柱の下面に重合して脚材の前記脚部片上に載置する組付け基板に、前記脚部片間に介在させる緊締受を設け、該緊締受に、前記透孔を通じて前記脚部片間に架設する緊締杆がそれぞれ圧接する一対の傾斜受縁を上方方向に漸次互いに近接させて設けた、柱脚金物。Between the leg pieces, the base piece to be fastened to the foundation concrete by an anchor bolt and a nut screwed to the anchor bolt, and the leg piece of the leg member provided with a pair of leg pieces standing on opposite sides of the base. The assembly board that is horizontally disposed with the corresponding through holes and that is assembled to the bottom surface of the column of the assembly material that is secured to the column by the fastening means and is placed on the leg piece of the leg material, Provided with a clamp receiver interposed between the leg pieces, and provided with a pair of inclined receiving edges to which the clamps laid between the leg pieces through the through-holes are in pressure contact with each other in the upward direction. The column base hardware.