JP4059550B2

JP4059550B2 - Column connection bracket

Info

Publication number: JP4059550B2
Application number: JP27759297A
Authority: JP
Inventors: 一幸西潟
Original assignee: 株式会社西幸
Priority date: 1997-10-09
Filing date: 1997-10-09
Publication date: 2008-03-12
Anticipated expiration: 2017-10-09
Also published as: JPH11108028A

Description

【０００１】
【発明の属する技術分野】
本発明は、例えば柱と梁とを連結固定する柱材連結金具（羽子板ボルト）に関するものである。
【０００２】
【従来の技術及び発明が解決しようとする課題】
従来の羽子板ボルトは、図４に示すように止着面に当接するボルト挿通孔２を有する羽子板部１と、連結部材側に貫通する連結ボルト部３とから成るものである。
【０００３】
例えば、梁の側面に直接若しくは梁の側面に当てがった添え木の側面に、この羽子板ボルトの羽子板部を当てがって、この梁を貫通した止着ボルトを羽子板部のボルト挿通孔を通してナットなどでボルト止めし（ナットを螺着して締め付け）、羽子板部から突設された連結ボルト部を柱に貫通させてナットなどでボルト止めし、柱と梁とを連結固定する。
【０００４】
しかしながら、止着ボルトを羽子板部のボルト挿通孔を通してナットなどでボルト止め（ナットを螺着して締め付け）する場合、羽子板部のボルト挿通孔の表面に係止する止着ボルトの頭部若しくは止着ボルトに螺着するナットなどが空回りしてしまい、止着ボルトを羽子板部のボルト挿通孔に容易に確実に素早く締め付け固定することが難しいという問題がある。
【０００５】
本発明は、このような問題を解決し、羽子板部と止着ボルトとの連結を素早く確実にしかも容易にでき、実用性に秀れた画期的な柱材連結金具を提供することを目的としている。
【０００６】
【課題を解決するための手段】
添付図面を参照して本発明の要旨を説明する。
【０００７】
止着ボルト４を挿通するボルト挿通孔２を設けた羽子板部１に連結ボルト部３を突設した柱材連結金具において、前記羽子板部１のボルト挿通孔２の表面周囲に、このボルト挿通孔２に挿通した止着ボルト４の角形ボルト頭部５若しくはこの止着ボルト４に螺着する角形ナット９の角形外周辺に当接若しくは近接対向する回り止め用凸辺部８を設け、この回り止め用凸辺部８は、前記羽子板部１の裏側より表側に向かってプレス成形により羽子板部１の板縁より連設状態に膨出形成した膨出部の内側の立ち上がり段側面をこの回り止め用凸辺部８として構成すると共に、前記ボルト挿通孔２に挿通した止着ボルト４の角形ボルト頭部５若しくはこの止着ボルト４に螺着する角形ナット９の外周六辺面のうちの一方側の三辺面に当接若しくは近接対向する三辺形の一方側回り止め用凸辺部８Ａを羽子板部１の板縁より連設状態に膨出形成し、この一方側回り止め凸辺部８Ａと反対側に対向状態に三辺形の反対側回り止め用凸辺部８Ｂを羽子板部１の板縁より連設状態に膨出形成し、この一方側回り止め凸辺部８Ａと反対側回り止め凸辺部８Ｂとにより前記六辺面を把持する形状に前記回り止め用凸辺部８を構成したことを特徴とする柱材連結金具に係るものである。
【０００８】
【発明の実施の形態】
好適と考える本発明の実施の形態（発明をどのように実施するか）を、図面に基づいてその作用効果を示して簡単に説明する。
【０００９】
羽子板部１のボルト挿通孔２の表面周囲に、このボルト挿通孔２に挿通した止着ボルト４の角形ボルト頭部５若しくはこの止着ボルト４に螺着する角形ナット９の角形外周辺面のうちの少なくとも二組以上の対向辺面に当接若しくは近接対向する回り止め用凸辺部８を膨出形成したから、ボルト挿通孔２に挿通した止着ボルト４の角形ボルト頭部５若しくはこの止着ボルト４に螺着する角形ナット９の角形外周辺面が、羽子板部１のボルト挿通孔２の表面周囲に膨出形成した回り止め用凸辺部８に係止され、止着ボルト４の角形ボルト頭部５若しくは止着ボルト４に螺着する角形ナット９が羽子板部１の表面で回動したりすることが防止され、止着ボルト４を羽子板部１のボルト挿通孔２に容易に確実に素早く締め付け固定することができ、例えば柱６と梁７とを確実にしかも素早く連結固定でき、従来に比べて柱６と梁７との連結強度を向上させることができる。
【００１０】
また、止着ボルト４の六角形ボルト頭部５若しくは止着ボルト４に螺着する六角形ナット９の外周六辺面のうちの一方側の三辺面に当接若しくは近接対向する三辺形の一方側回り止め用凸辺部８Ａを羽子板部１の表面の一方側に膨出形成し、この一方側回り止め用凸辺部８Ａの反対側に対向状態に三辺形の反対側回り止め用凸辺部８Ｂを膨出形成し、一方側回り止め用凸辺部８Ａと回り止め用凸辺部８Ｂとにより前記六辺面を握持する状態にして回り止め用凸辺部８を構成したから、六角形ボルト頭部５若しくは六角形ナット９の外周六辺面のうちの一方側の三辺面が一方側回り止め用凸辺部８Ａに確実に係止されると共に、他方側の三辺面が反対側回り止め用凸辺部８Ｂに確実に係止され、六角形ボルト頭部５若しくは六角形ナット９が羽子板部１の表面で空回りするようなことが確実に防止され、六角形ボルト頭部５若しくは六角形ナット９の外周六辺面が一方側回り止め用凸辺部８Ａと反対側回り止め用凸辺部８Ｂとに確実に係止され、止着ボルト４を羽子板部１のボルト挿通孔２により確実に締め付け固定することができる。
【００１１】
また、羽子板部１の裏側より表側に向かって膨出し、且つ羽子板部１の板縁より連結状態に膨出して、この膨出部の内側の立ち上がり段側面を回り止め用凸辺部８としたから、羽子板部１の表面に回り止め用凸部材を設けたりする場合に比べ、回り止め用凸辺部８を羽子板部１と一体にプレス成形するから、回り止め用凸辺部８の形成が簡易にできると共に、回り止め用凸辺部８が変形したり外れたりするようなことなく止着ボルト４を羽子板部１のボルト挿通孔２に確実に締め付け固定することができる。
【００１２】
さらに、羽子板部１の板縁より連結状態に膨出して、この膨出部の内側の立ち上がり段側面を回り止め用凸辺部８としたから、この立ち上がり段側面に角形ボルト頭部５若しくは角形ナット９が安定した状態で確実に係止され、角形ボルト頭部５若しくは角形ナット９が羽子板部１の表面で回動するようなことが確実に防止され、止着ボルト４を羽子板部１のボルト挿通孔２に確実に締め付け固定することができる。
【００１３】
【実施例】
本発明の一実施例に係る柱材連結金具に関して以下図面に基づき説明する。
【００１４】
本実施例は、図１〜図３に図示したように、止着ボルト４を挿通するボルト挿通孔２を設けた羽子板部１に連結ボルト部３を突設した柱材連結金具において、前記羽子板部１のボルト挿通孔２の表面周囲に、このボルト挿通孔２に挿通した止着ボルト４の角形ボルト頭部５若しくはこの止着ボルト４に螺着する角形ナット９の角形外周辺面の対向辺面に当接若しくは近接対向する回り止め用凸辺部８を膨出形成したものであり、前記羽子板部１の表面の一方側に、前記ボルト挿通孔２に挿通した止着ボルト４の六角形ボルト頭部５若しくはこの止着ボルト４に螺着する六角形ナット９の外周六辺面のうちの一方側の三辺面に当接若しくは近接対向する三辺形の一方側回り止め用凸辺部８Ａを膨出形成し、この一方側回り止め用凸辺部８Ａの反対側に対向状態に三辺形の反対側回り止め用凸辺部８Ｂを膨出形成し、この一方側回り止め用凸辺部８Ａと反対側回り止め用凸辺部８Ｂとにより前記六辺面を把持する状態にして前記回り止め用凸辺部８を構成したものであり、前記羽子板部１の裏側より表側に向かって膨出し、且つ羽子板部１の板縁より連設状態に膨出して、この膨出部の内側の立ち上がり段側面を前記回り止め用凸辺部８としたものである。
【００１５】
尚、膨出部の内側の立ち上がり段側面は、ボルト挿通孔２の表面側の両側に立ち上がり段側面を各々三面づつ形成し、これらの立ち上がり段側面で止着ボルト４の六角形ボルト頭部５若しくは六角形ナット９の外周六辺面を確実に安定した状態で係止できるようにしている。
【００１６】
本実施例の柱材連結金具（羽子板ボルト）を用いて、柱６と梁７とを連結固定する方法について図３に基づき説明する。
【００１７】
柱６には予め連結ボルト部３を挿通できる孔12を設け、この柱６に連結固定する梁７には予め本実施例の柱材連結金具に設けた止着ボルト４を挿通するためのボルト挿通孔８に止着ボルト４を挿通できるように、止着ボルト４を挿通できる孔を適宜設ける。
【００１８】
柱６と梁７との連結固定部において、柱６に設けた孔12に本実施例の柱材連結金具の連結ボルト部３を梁７との連結側より挿入し、連結ボルト部３の螺着部10を柱６の反対側に突出させ、ボルト挿通孔２を梁７に設けた孔の位置に当接し、梁７に設けた孔に柱材連結金具の当接面と反対側から止着ボルト４を挿入して止着ボルト４の螺着部11をボルト挿通孔２に突出させ、ボルト挿通孔２から突出した止着ボルト４の螺着部11に角形ナット９（六角ナット）を螺着する。
【００１９】
止着ボルト４の螺着部11に角形ナット９を螺着する際には、角形ナット９は柱材連結金具の羽子板部１に形成した回り止め用凸辺部８に係止されるから、止着ボルト４の角形ボルト頭部５（六角形ボルト頭部）を回動して柱材連結金具を梁７に連結固定する際に角形ナット９が羽子板部１の表面で空回りするようなことなく確実にしかも容易に止着ボルト４を締め付け固定することができる。
【００２０】
尚、止着ボルト４は羽子板部１の表面側からボルト挿通孔２を介して梁７に設けた孔に挿入し、梁７の反対側に止着ボルト４の螺着部11を突出させ、梁７の孔から突出した止着ボルト４の螺着部11にワッシャを介して角形ナット９を螺着してもよい。
【００２１】
この場合には、止着ボルト４の角形ボルト頭部５が羽子板部１に形成した回り止め用凸辺部８に係止されるから、止着ボルト４の螺着部11に螺着する角形ナット９を回動して柱材連結金具を梁７に連結固定する際に角形ボルト頭部５が羽子板部１の表面で空回りするようなことなく確実にしかも容易に止着ボルト４を締め付け固定することができる。
【００２２】
また、柱６の反対側に突出させた連結ボルト部３の螺着部10にはワッシャ13を介してナット14を回動して螺着固定する。
【００２３】
以上のように、柱材連結金具の連結ボルト部３を柱６に連結固定し、止着ボルト４で梁７と柱材連結金具とを連結固定することにより、柱６と梁７とを柱材連結金具を介して非常に強固にしかも素早く確実に連結固定することができる。
【００２４】
図中符号15は根太、符号16は根太枠、符号17は床板である。
【００２５】
【発明の効果】
本発明は上述のように構成したから、羽子板部のボルト挿通孔の表面周囲に、このボルト挿通孔に挿通した止着ボルトの角形ボルト頭部若しくはこの止着ボルトに螺着する角形ナットの角形外周辺面の対向辺面に当接若しくは近接対向する回り止め用凸辺部を膨出形成したから、ボルト挿通孔に挿通した止着ボルトの角形ボルト頭部若しくはこの止着ボルトに螺着する角形ナットの角形外周辺面が、羽子板部のボルト挿通孔の表面周囲に膨出形成した回り止め用凸辺部に係止され、止着ボルトの角形ボルト頭部若しくは止着ボルトに螺着する角形ナットが羽子板部の表面で回動したりすることが防止され、止着ボルトを羽子板部のボルト挿通孔に容易に確実に素早く締め付け固定することができ、例えば柱と梁とを確実にしかも素早く連結固定でき、従来に比べて柱と梁との連結強度を向上させることができる。
【００２６】
即ち、止着ボルトの六角形ボルト頭部若しくは止着ボルトに螺着する六角形ナットの外周六辺面のうちの一方側の三辺面に当接若しくは近接対向する三辺形の一方側回り止め用凸辺部を羽子板部の表面の一方側に膨出形成し、この一方側回り止め用凸辺部の反対側に対向状態に三辺形の反対側回り止め用凸辺部を膨出形成し、回り止め用凸辺部と回り止め用凸辺部とにより前記六辺面を把持する状態にして回り止め用凸辺部を構成したから、六角形ボルト頭部若しくは六角形ナットの外周六辺面のうちの一方側の三辺面が回り止め用凸辺部に確実に係止されると共に、他方側の三辺面が反対側回り止め用凸辺部に確実に係止され、六角形ボルト頭部若しくは六角形ナットが羽子板部の表面で空回りするようなことが確実に防止され、六角形ボルト頭部若しくは六角形ナットの外周六辺面が回り止め用凸辺部と反対側回り止め用凸辺部とに確実に係止され、止着ボルトを羽子板部のボルト挿通孔により確実に締め付け固定することができる。
【００２７】
また、羽子板部の裏側より表側に向かって膨出し、且つ羽子板部の板縁より連結状態に膨出して、この膨出部の内側の立ち上がり段側面を回り止め用凸辺部としたから、羽子板部の表面に回り止め用凸部材を設けたりする場合に比べ、回り止め用凸辺部を羽子板部と一体にプレス成形するから、回り止め用凸辺部の形成が簡易にできると共に、回り止め用凸辺部が変形したり外れたりするようなことなく止着ボルトを羽子板部のボルト挿通孔に確実に締め付け固定することができる。
【００２８】
さらに、羽子板部の板縁より連結状態に膨出して、この膨出部の内側の立ち上がり段側面を回り止め用凸辺部としたから、この立ち上がり段側面に角形ボルト頭部若しくは角形ナットが安定した状態で確実に係止され、角形ボルト頭部若しくは角形ナットが羽子板部の表面で回動するようなことが確実に防止され、止着ボルトを羽子板部のボルト挿通孔に確実に締め付け固定することができる。
【図面の簡単な説明】
【図１】本発明の一実施例に係る柱材連結金具及び止着ボルトを示す斜視図である。
【図２】本発明の一実施例に係る柱材連結金具と止着ボルトとの連結状態を示す斜視図である。
【図３】本発明の一実施例に係る柱材連結金具の使用状態を示す説明図である。
【図４】従来の柱材連結金具を示す斜視図である。
【符号の説明】
１羽子板部
２ボルト挿通孔
３連結ボルト部
４止着ボルト
５角形ボルト頭部，六角形ボルト頭部
８回り止め用凸辺部
８Ａ一方側回り止め用凸辺部
８Ｂ反対側回り止め用凸辺部
９角形ナット，六角形ナット[0001]
BACKGROUND OF THE INVENTION
The present invention relates to, for example, a column member coupling fitting (baddle plate bolt) for coupling and fixing a column and a beam.
[0002]
[Prior art and problems to be solved by the invention]
As shown in FIG. 4, the conventional battledore bolt includes a battledore part 1 having a bolt insertion hole 2 that comes into contact with a fastening surface, and a connecting bolt part 3 that penetrates to the connecting member side.
[0003]
For example, apply the wing plate part of this wing plate bolt directly to the side surface of the beam or to the side surface of the splint applied to the side surface of the beam, and tighten the fastening bolt that penetrates this beam through the bolt insertion hole of the wing plate portion. The bolts are fastened with screws (screwed and tightened with nuts), and the connecting bolts protruding from the battledore are passed through the pillars and bolted with nuts to connect and fix the pillars and beams.
[0004]
However, when the fastening bolt is bolted with a nut or the like through the bolt insertion hole of the battledore part (screwed and tightened), the head of the fastening bolt that is locked to the surface of the bolt insertion hole of the battledore part or the fastening bolt There is a problem that it is difficult to quickly and securely fasten and fix the fastening bolt to the bolt insertion hole of the battledore part because a nut or the like that is screwed onto the fastening bolt is idle.
[0005]
An object of the present invention is to solve such a problem, and to provide an innovative column material coupling metal fitting that can quickly and surely and easily connect a battledore part and a fastening bolt, and has excellent practicality. It is said.
[0006]
[Means for Solving the Problems]
The gist of the present invention will be described with reference to the accompanying drawings.
[0007]
In a columnar connecting bracket in which a connecting bolt part 3 is projected from a battledore part 1 provided with a bolt insertion hole 2 through which a fastening bolt 4 is inserted, the bolt insertion hole is formed around the surface of the bolt insertion hole 2 of the battledore part 1. the rotation stopper Totsuhen unit 8 abut or closely opposed to rectangular outer peripheral sides of the square nut 9 screwed to the square bolt head 5 or the fastening bolts 4 fastening bolts 4 inserted through the 2 provided, the rotation The stop convex side 8 is formed by pressing the rising step side surface inside the bulging portion formed by bulging from the plate edge of the wing plate portion 1 by press molding from the back side of the wing plate portion 1 to the front side. Among the outer peripheral hexagonal surfaces of the square bolt head 5 of the fastening bolt 4 inserted into the bolt insertion hole 2 or the square nut 9 screwed to the fastening bolt 4 while being configured as the convex side 8 for fitting Abut or close to the three sides of one side An opposing trigonal one-side anti-rotation convex side 8A is formed to bulge in a continuous state from the edge of the battledore 1 and is opposite to the one-side anti-rotation convex side 8A. Convex side 8B on the opposite side of the shape bulges out from the edge of the battledore portion 1 in a continuous manner, and the above-mentioned six sides are formed by the one side detent convex side 8A and the opposite side detent convex side 8B. The anti-rotation convex side portion 8 is formed in a shape that grips the side surface .
[0008]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention (how to carry out the invention) considered to be suitable will be briefly described with reference to the drawings, showing its effects.
[0009]
Around the surface of the bolt insertion hole 2 of the battledore 1, the square bolt head 5 of the fastening bolt 4 inserted into the bolt insertion hole 2 or the rectangular outer peripheral surface of the square nut 9 screwed to the fastening bolt 4. Since the rotation-preventing convex side portion 8 that abuts or closely faces at least two pairs of the opposite side surfaces is bulged, the rectangular bolt head 5 of the fastening bolt 4 inserted through the bolt insertion hole 2 or the A rectangular outer peripheral surface of a square nut 9 that is screwed to the fastening bolt 4 is locked to a convex side portion 8 that is formed to bulge around the surface of the bolt insertion hole 2 of the battledore portion 1. The square bolt head 5 or the square nut 9 screwed to the fastening bolt 4 is prevented from rotating on the surface of the battledore 1 and the fastening bolt 4 can be easily inserted into the bolt insertion hole 2 of the battledore 1. Can be fastened and fastened securely, A Ebahashira 6 and the beam 7 can reliably and quickly connected and fixed, it is possible to improve the coupling strength between the pillar 6 and the beams 7 as compared with the prior art.
[0010]
Further, the three sides that are in contact with or close to one side of the hexagonal bolt head 5 of the fixing bolt 4 or the hexagonal nut 9 that is screwed to the fixing bolt 4 on one side of the six sides of the outer periphery. A convex side 8A for preventing rotation on one side of the shape is formed to bulge on one side of the surface of the battledore part 1, and on the opposite side of the triangle on the opposite side to the convex side 8A for locking on one side The protruding convex side portion 8B is formed in a bulging shape, and the hexagonal surface is gripped by the one side detent convex side portion 8A and the detented convex side portion 8B. Since it comprised, the three sides of one side of the hexagonal bolt head 5 or the hexagon nut 9 are securely locked to the convex side 8A for one-side rotation prevention, and the other The three sides on the side are securely locked to the opposite-side detent convex side 8B, and the hexagonal bolt head 5 or hexagonal nut 9 is winged. Thing is reliably prevented so that idle on the surface of the plate portion 1, outer peripheral hexagonal surface of the hexagonal bolt head 5 or hexagonal nut 9 and one side rotation stopper Totsuhen section 8A opposite detent The fastening bolt 4 can be securely locked to the convex side portion 8B, and can be securely fastened and fixed by the bolt insertion hole 2 of the battledore portion 1.
[0011]
Moreover, it bulges toward the front side from the back side of the battledore part 1 and bulges in a connected state from the plate edge of the battledore part 1, and the rising step side surface inside the bulge part is used as a convex side part 8 for preventing rotation. Therefore, as compared with the case where a rotation preventing convex member 8 is provided on the surface of the battledore portion 1, the rotation preventing convex side portion 8 is press-molded integrally with the battledore plate portion 1, so that the rotation preventing convex side portion 8 is formed. The fastening bolt 4 can be securely tightened and fixed to the bolt insertion hole 2 of the lasso plate portion 1 without being deformed or detached from the rotation-preventing convex side portion 8.
[0012]
Furthermore, since it bulges in a connected state from the plate edge of the battledore portion 1 and the rising step side surface inside the bulging portion is used as the non-rotating convex side portion 8, the square bolt head 5 or the square shape is formed on the rising step side surface. The nut 9 is securely locked in a stable state, and the square bolt head 5 or the square nut 9 is reliably prevented from rotating on the surface of the blade plate 1, and the fastening bolt 4 is attached to the blade plate 1. It can be securely fastened and fixed to the bolt insertion hole 2.
[0013]
【Example】
A column member fitting according to an embodiment of the present invention will be described below with reference to the drawings.
[0014]
As shown in FIGS. 1 to 3, the present embodiment is a column member connecting bracket in which a connecting bolt portion 3 is provided protruding from a hung plate portion 1 provided with a bolt insertion hole 2 through which a fastening bolt 4 is inserted. A pair of a rectangular outer peripheral surface of a square bolt head 5 of a fastening bolt 4 inserted into the bolt insertion hole 2 or a square nut 9 screwed to the fastening bolt 4 around the surface of the bolt insertion hole 2 of the portion 1 . An anti-rotation convex side portion 8 that abuts or closely faces the opposite side surface is bulged, and a fixing bolt 4 inserted into the bolt insertion hole 2 is formed on one side of the surface of the battledore portion 1. A hexagonal bolt head 5 or a hexagonal nut 9 that is screwed to the fixing bolt 4, a trigonal one-side detent that comes into contact with or faces the three sides of one of the six sides of the outer periphery of the hexagonal nut 9. The convex side 8A for bulging is formed to bulge, and the opposite side of the convex side 8A for preventing rotation on one side A convex side 8B for anti-rotation on the opposite side of the triangle is formed so as to be opposed to the side, and the hexagonal surface is formed by the convex side 8A for anti-rotation on one side and the convex side 8B for anti-rotation on the opposite side. Is formed in a state of gripping the anti-rotation convex side portion 8 and bulges from the back side to the front side of the battledore unit 1 and bulges in a continuous state from the plate edge of the battledore plate unit 1. The rising step side surface on the inner side of the bulging part is the convex side part 8 for preventing rotation.
[0015]
The rising step side surface inside the bulging portion is formed with three rising step side surfaces on both sides of the surface side of the bolt insertion hole 2, and the hexagonal bolt head 5 of the fastening bolt 4 is formed on these rising step side surfaces. Alternatively, the outer peripheral six sides of the hexagon nut 9 can be reliably locked in a stable state.
[0016]
A method of connecting and fixing the column 6 and the beam 7 by using the column member connecting bracket (wing plate bolt) of this embodiment will be described with reference to FIG.
[0017]
A hole 12 through which the connecting bolt portion 3 can be inserted is provided in the column 6 in advance, and a bolt 7 into which a fastening bolt 4 provided in advance in the column material connecting bracket of this embodiment is inserted in the beam 7 connected and fixed to the column 6. A hole through which the fixing bolt 4 can be inserted is provided as appropriate so that the fixing bolt 4 can be inserted into the insertion hole 8.
[0018]
In the connecting and fixing portion between the column 6 and the beam 7, the connecting bolt portion 3 of the column member connecting bracket of this embodiment is inserted into the hole 12 provided in the column 6 from the connecting side with the beam 7, and the connecting bolt portion 3 is screwed. The fitting part 10 is projected to the opposite side of the column 6, the bolt insertion hole 2 is brought into contact with the position of the hole provided in the beam 7, and the hole provided in the beam 7 is stopped from the side opposite to the contact surface of the column member coupling metal fitting. The fixing bolt 4 is inserted so that the threaded portion 11 of the fixing bolt 4 protrudes into the bolt insertion hole 2, and a square nut 9 (hexagonal nut) is attached to the screwing portion 11 of the fixing bolt 4 protruding from the bolt insertion hole 2. Screw it on.
[0019]
When the square nut 9 is screwed to the threaded portion 11 of the fastening bolt 4, the square nut 9 is locked to the rotation-preventing convex side portion 8 formed on the battledore portion 1 of the column member connecting bracket. When the square bolt head 5 (hexagonal bolt head) of the fastening bolt 4 is rotated to connect and fix the column member coupling bracket to the beam 7, the square nut 9 is idled on the surface of the battledore portion 1. The fastening bolt 4 can be tightened and fixed reliably and easily.
[0020]
The fastening bolt 4 is inserted into the hole provided in the beam 7 from the surface side of the battledore portion 1 through the bolt insertion hole 2, and the screwing portion 11 of the fastening bolt 4 is projected to the opposite side of the beam 7. A square nut 9 may be screwed to the screwed portion 11 of the fastening bolt 4 protruding from the hole of the beam 7 via a washer.
[0021]
In this case, since the square bolt head 5 of the fastening bolt 4 is locked to the convex side 8 for rotation prevention formed in the battledore 1, the square that is screwed to the screwed portion 11 of the fastening bolt 4. When the nut 9 is rotated to connect and fix the column member connecting bracket to the beam 7, the fixing bolt 4 can be securely fastened securely and easily without the square bolt head 5 spinning around on the surface of the battledore 1. can do.
[0022]
Further, a nut 14 is rotated and fixed by screwing to a screwed portion 10 of the connecting bolt portion 3 protruding to the opposite side of the column 6 through a washer 13.
[0023]
As described above, by connecting and fixing the connecting bolt portion 3 of the column member connecting bracket to the column 6 and connecting and fixing the beam 7 and the column member connecting bracket with the fastening bolt 4, the column 6 and the beam 7 are connected to the column. It is possible to connect and fix very firmly and quickly through the material connecting metal fittings.
[0024]
In the figure, reference numeral 15 denotes a joist, reference numeral 16 denotes a joist frame, and reference numeral 17 denotes a floor board.
[0025]
【The invention's effect】
Since the present invention is configured as described above, the square bolt head of the fastening bolt inserted into the bolt insertion hole or the square shape of the square nut screwed to the fastening bolt is provided around the surface of the bolt insertion hole of the battledore part. screwed detent projection side portions abut or closely opposed pair toward the side surface of the outer peripheral surface because the bulge formed, the square bolt head or the fastening bolt fastening bolt inserted through the bolt insertion hole The outer peripheral surface of the square nut that is to be engaged is locked to the convex side for rotation prevention that bulges around the surface of the bolt insertion hole of the battledore part, and is screwed to the square bolt head of the fastening bolt or the fastening bolt The square nut is prevented from rotating on the surface of the battledore part, and the fastening bolt can be easily and quickly fastened and fixed to the bolt insertion hole of the battledore part. Moreover, it can be connected quickly Can, it is possible to improve the coupling strength between the columns and beams as compared with the prior art.
[0026]
That is , one side of a triangle that contacts or is close to one side of the hexagonal bolt head of the fixing bolt or one of the six sides of the outer periphery of the hexagonal nut that is screwed to the fixing bolt. An anti-rotation convex edge is formed to bulge on one side of the surface of the battledore part, and the opposite side anti-rotation convex edge of the triangle is swelled on the opposite side of the one-side anti-rotation convex edge. out form, because to constitute a stop for the projection side portions around and in a state of lifting bunch the hexagonal surface by the rotation stop protrusion side portions and the detent projections sides, hexagonal bolt head or hexagon nut The three sides on one side of the outer peripheral six sides are securely locked to the non-rotating convex side, and the other three sides are securely engaged to the opposite side non-rotating convex side. The hexagonal bolt head or hexagon nut is securely prevented from spinning around on the surface of the blade plate. The outer periphery of the hexagonal head or hexagonal nut is securely locked to the non-rotating convex side and the opposite anti-rotating convex side, and the fastening bolt is securely secured by the bolt insertion hole of the blade plate. It can be fastened and fixed.
[0027]
Also, since the bulges from the back side of the battledore part toward the front side and bulges in a connected state from the plate edge of the battledore part, the rising step side surface inside the bulge part is used as a non-rotating convex side part. Compared with the case where a non-rotating convex member is provided on the surface of the part, the non-rotating convex side part is press-molded integrally with the wing plate part, so that the non-rotating convex side part can be easily formed and the anti-rotation part The fastening bolt can be securely tightened and fixed to the bolt insertion hole of the battledore portion without the convex side portion being deformed or detached.
[0028]
In addition, it swells in a connected state from the edge of the battledore part, and the rising step side surface inside this bulging part is used as a convex side for rotation prevention, so the square bolt head or square nut is stable on this rising step side surface. The square bolt head or square nut is reliably prevented from rotating on the surface of the blade plate, and the fastening bolt is securely tightened and fixed to the bolt insertion hole of the blade plate. be able to.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a columnar connecting bracket and a fastening bolt according to an embodiment of the present invention.
FIG. 2 is a perspective view showing a connected state of a column member connecting bracket and a fastening bolt according to an embodiment of the present invention.
FIG. 3 is an explanatory view showing a usage state of a columnar member fitting according to an embodiment of the present invention.
FIG. 4 is a perspective view showing a conventional column member coupling metal fitting.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Ling board part 2 Bolt insertion hole 3 Connection bolt part 4 Fixing bolt 5 Square bolt head, hexagon bolt head 8 Rotation prevention convex side 8A One side rotation prevention convex side 8B Opposite side rotation prevention convex side Part 9 Square nut, hexagonal nut

Claims

In the column member connecting bracket in which a connecting bolt portion is provided protruding from a blade plate portion provided with a bolt insertion hole for inserting a fixing bolt, a fixing bolt inserted into the bolt insertion hole around the surface of the bolt insertion hole of the battle plate portion the prismatic bolt head or detent projection side portions abutting or closely opposed to rectangular outer peripheral side of the square nut is screwed to the fastening bolt is provided, the convex sides for this detent is the back side of the battledore portion The rising step side surface inside the bulging part formed by bulging from the edge of the feather plate part by press molding toward the front side is configured as a convex side part for rotation prevention and inserted into the bolt insertion hole. The one-side detent of the triangle that comes into contact with or is opposed to one of the three sides of the outer periphery of the square bolt that is screwed to the square bolt head of the fixed bolt For convex side The bulge is formed in a continuous state from the edge of the base plate part, and the opposite side non-rotating convex side part of the triangle is opposed to the one side anti-rotation convex side part from the edge of the battledore part. The anti-rotation convex side portion is formed in a shape in which the hexagonal surface is gripped by the one-side anti-rotation convex side portion and the opposite-side anti-rotation convex side portion. Column connecting bracket to be used.