JP6278667B2 - Bonding hardware for structural members - Google Patents

Bonding hardware for structural members Download PDF

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JP6278667B2
JP6278667B2 JP2013241029A JP2013241029A JP6278667B2 JP 6278667 B2 JP6278667 B2 JP 6278667B2 JP 2013241029 A JP2013241029 A JP 2013241029A JP 2013241029 A JP2013241029 A JP 2013241029A JP 6278667 B2 JP6278667 B2 JP 6278667B2
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wall
side wall
washer
upper wall
lower wall
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JP2015101834A (en
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敬一郎 渋田
敬一郎 渋田
永田　誠
誠 永田
幸夫 北田
幸夫 北田
信博 甲斐
信博 甲斐
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Hinode Ltd
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Description

本発明は、構造部材の接合金物に関し、特に、薄板軽量形鋼によって形成される構造枠材に、構造用合板、石膏ボード、セラミック系面材などの構造面材を貼り付けた構造部材（壁パネル、床パネル、屋根パネル等）を使用したスチールハウス（枠組壁工法住宅）等の建築物における、上下階の構造部材（壁パネル、床パネル）同士を接合する際に使用する接合金物に関する。   BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal fitting for a structural member. The present invention relates to a joint metal used when joining structural members (wall panels, floor panels) on upper and lower floors in a building such as a steel house (framed wall construction house) using panels, floor panels, roof panels, and the like.

複数階建の家屋などに採用される薄板軽量形鋼によって形成される構造枠材と、構造用合板、石膏ボード、セラミック系面材などの構造面材を貼り付けた構造部材を使用した枠組壁工法住宅等の建築物において、上下階の構造部材を接合する際に使用する接合金物としては、例えば特許文献１の図６に開示されるように、上階の上壁パネルの縦枠に複数のビスで接続されたホールダウン金物と、その階下である下階の下壁パネルの縦枠に複数のビスで接続されたホールダウン金物とを、突き通しのボルトおよびナットにて接続する円筒体状の接合金物が知られている。   A frame using a structural frame material made of thin lightweight steel used in multi-storey houses, etc., and a structural member on which structural surface materials such as structural plywood, gypsum board, and ceramic face materials are attached. In a building such as a construction method house, as the joint hardware used when joining the structural members on the upper and lower floors, as disclosed in, for example, FIG. A cylindrical body that connects a hole-down hardware connected with a screw and a hole-down hardware connected with a plurality of screws to the vertical frame of the lower wall panel, which is the lower floor, with a piercing bolt and nut. Shaped joint hardware is known.

特開平１０−３１１１１０号公報Japanese Patent Laid-Open No. 10-311110

しかしながら、上記の接合金物は、円筒体状に形成したボルト挿通部の上下端部にそれぞれフランジを水平に固着し、かつ上下フランジにボルト挿通孔を穿設し、突き通しのボルトをボルト挿通孔に挿通して、下階と上階の構造部材を緊結固定するものである。したがって、下階において１人の作業員が、座金および突き通しのボルトが下方に脱落しないように、また、突き通しのボルトおよびナットが供回りしないように、スパナ等でボルトおよびナットを押える一方、上階において別の作業員がナットを締結する必要がある。   However, the above-mentioned joint hardware has a flange that is horizontally fixed to the upper and lower ends of the bolt insertion portion formed in a cylindrical shape, and a bolt insertion hole is formed in the upper and lower flanges, and the pierced bolt is inserted into the bolt insertion hole. And the structural members on the lower floor and the upper floor are tightly fixed. Therefore, on the lower floor, one worker presses the bolt and nut with a spanner or the like so that the washer and the piercing bolt are not dropped downward and the piercing bolt and nut are not rotated. On the upper floor, another worker needs to fasten the nut.

このように、上下階の構造部材同士の接合作業では、複数の作業員がボルトおよびナットの固定作業と締結作業とを同時に行わなければならないため、作業効率の悪化を招いていた。
また、上記の接合金物は、円筒体状に形成したボルト挿通部の上下端部にそれぞれフランジを水平に固着し、かつ上下フランジにボルト挿通孔を穿設しただけのものであり、接合金物の強度および剛性を確保しながら、接合金物の重量を軽減することについては、依然として課題が残されている。 As described above, in the joining work between the structural members on the upper and lower floors, a plurality of workers must perform the fixing work and the fastening work of the bolts and nuts at the same time.
In addition, the above-mentioned joint metal fitting is one in which the flange is fixed horizontally to the upper and lower ends of the bolt insertion portion formed in a cylindrical shape, and the bolt insertion hole is formed in the upper and lower flanges. There remains a problem with reducing the weight of the joint hardware while ensuring strength and rigidity.

本発明はこのような課題に鑑みてなされたものであり、その目的とするところは、座金の脱落防止と、ボルトまたはナットの供回り防止を図りながら、構造部材同士の接合作業の作業効率を向上させるとともに、接合金物の強度および剛性を確保しながら、接合金物の重量を軽減することができる、構造部材の接合金物を提供することにある。   The present invention has been made in view of such problems, and the object of the present invention is to improve the work efficiency of joining work between structural members while preventing the washer from falling off and preventing the bolt or nut from rotating. An object of the present invention is to provide a joint metal for a structural member that can improve the weight and reduce the weight of the joint metal while ensuring the strength and rigidity of the joint metal.

上記目的を達成するため、本発明の構造部材の接合金物は、ボルトが挿通される貫通孔を穿設し、対向して配される上部壁および下部壁を形成するとともに、上部壁および下部壁間に亘って延び、一方に開口を有する側壁を形成し、側壁の内面には、上部壁および下部壁の近傍にそれぞれ、座金を保持する座金保持部と、ボルトまたはナットの回動を阻止する回動阻止部とを備え、座金保持部は、当該座金保持部が側壁の内面に設けられた状態で、座金が開口から水平方向に挿入可能となるように形成された部分を有し、回動阻止部は、当該回動阻止部が側壁の内面に設けられた状態で、ボルトの頭部またはナットが開口から上方向または下方向に挿入可能となるように形成された部分を有することを特徴とする。 In order to achieve the above-described object, the metal fitting of the structural member of the present invention has a through-hole through which a bolt is inserted, and forms an upper wall and a lower wall arranged opposite to each other, and an upper wall and a lower wall. A side wall having an opening on one side is formed, and a washer holding portion for holding a washer and a bolt or a nut are prevented from rotating on the inner surface of the side wall in the vicinity of the upper wall and the lower wall, respectively. The washer holding portion has a portion formed so that the washer can be inserted horizontally from the opening in a state where the washer holding portion is provided on the inner surface of the side wall. The movement preventing portion has a portion formed such that the head portion or nut of the bolt can be inserted upward or downward from the opening in a state where the rotation preventing portion is provided on the inner surface of the side wall. Features.

好ましくは、側壁は、断面溝形形状をなし、側壁の外面には、周方向に亘って形成された周方向リブと、上部壁および下壁部に至るまで周方向リブと直交するように形成された縦リブとを備えている。
好ましくは、上部壁、下部壁、側壁、座金保持部および回動阻止部は、一体に鋳造成形されている。
好ましくは、座金保持部および回動阻止部は、側壁の内面に形成された凸部である。
好ましくは、側壁は、上部壁および下部壁間の方向の中央において最も肉薄であり、上部壁および下部壁に近づくにつれて次第に肉厚となる。 Preferably, the side wall has a groove shape in cross section , and is formed on the outer surface of the side wall so as to be orthogonal to the circumferential rib formed over the circumferential direction and the upper and lower walls. Vertical ribs .
Preferably, the upper wall, the lower wall, the side wall, the washer holding part, and the rotation preventing part are integrally cast.
Preferably, the washer holding portion and the rotation preventing portion are convex portions formed on the inner surface of the side wall.
Preferably, the side wall is thinnest in the center in the direction between the upper wall and the lower wall, and gradually becomes thicker as it approaches the upper wall and the lower wall.

本発明の構造部材の接合金物によれば、座金の脱落防止と、ボルトまたはナットの供回り防止を図りながら、構造部材同士の接合作業の作業効率を向上させるとともに、接合金物の強度および剛性を確保しながら、接合金物の重量を軽減することができる。   According to the joining member of the structural member of the present invention, while preventing the washer from falling off and preventing the rotation of the bolt or the nut, the work efficiency of joining work between the structural members is improved, and the strength and rigidity of the joining member are improved. The weight of the joint hardware can be reduced while ensuring.

上下壁パネルを床パネルの内方に配置された本発明の一実施形態に係る接合金物に接合した建築物の一部を示す斜視図である。It is a perspective view which shows a part of building which joined the upper and lower wall panel to the joint metal fitting which concerns on one Embodiment of this invention arrange | positioned inside the floor panel. 図１の接合金物を図１中のＡ方向から見た斜視図である。It is the perspective view which looked at the metal joint of FIG. 1 from the A direction in FIG. 図１の接合金物を図１中のＢ方向から見た図である。It is the figure which looked at the metal joint of FIG. 1 from the B direction in FIG. 図１の接合金物を上方向から見た透視上面図である。It is the see-through | perspective top view which looked at the metal joint of FIG. 1 from the upper direction. 図１の建築物の一部を図１中のＢ方向から拡大して示した図である。It is the figure which expanded and showed a part of building of FIG. 1 from the B direction in FIG. 図１の建築物の一部を図１中のＣ方向から拡大して示した図である。It is the figure which expanded and showed a part of building of FIG. 1 from the C direction in FIG.

以下、図面に基づき本発明の一実施形態について説明する。
図１は、複数階建のスチールハウスである建築物１の構造部材同士の接合箇所の一部を示している。建築物１では、溝形、リップ溝形、或いは角パイプ形等の薄板軽量形鋼を縦枠８および横枠９として組み合わせ、溶接等で接合した構造枠材が形成されている。これら構造枠材の表面には、図示を省略した合板、石膏ボード、或いはセラミック系面材等の構造面材が貼り付けられ、例えば図１中に一部を示す、床パネル２、上階の上壁パネル４、下階の下壁パネル６や、図示しない屋根パネル等の建築物１の構造部材が形成され、これら構造部材同士をボルト締結等で接合することにより建築物１が形成される。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a part of a joint portion between structural members of a building 1 which is a multi-storey steel house. In the building 1, a structural frame material is formed by combining thin and light steel shapes such as a groove shape, a lip groove shape, or a square pipe shape as a vertical frame 8 and a horizontal frame 9, and joined by welding or the like. A structural surface material such as plywood, gypsum board, or ceramic surface material (not shown) is affixed to the surface of these structural frame materials. For example, a part of the floor panel 2 and upper floor shown in FIG. Structural members of the building 1 such as the upper wall panel 4, the lower wall panel 6 of the lower floor, and a roof panel (not shown) are formed, and the building 1 is formed by joining these structural members together by bolt fastening or the like. .

上壁パネル４は、その壁下地として縦枠８および横枠９を有し、縦枠８の下端側にはホールダウン金物１０が複数のビス１２で締結固定されている。下壁パネル６は、その壁下地として縦枠１４および横枠１５を有し、縦枠１４の上端側にはホールダウン金物１０と同様のホールダウン金物１６が複数のビス１２でホールダウン金物１０とは上下逆の向きに締結固定されている。   The upper wall panel 4 has a vertical frame 8 and a horizontal frame 9 as a wall base, and a hole down hardware 10 is fastened and fixed to the lower end side of the vertical frame 8 by a plurality of screws 12. The lower wall panel 6 has a vertical frame 14 and a horizontal frame 15 as a wall base, and a hole down hardware 16 similar to the hole down hardware 10 is formed on the upper end side of the vertical frame 14 with a plurality of screws 12. It is fastened and fixed in the upside down direction.

各ホールダウン金物１０，１６は、構造部材を引き寄せて接合するための、いわゆる引き寄せ金物であり、長板形状の縦枠取付部１８と、縦枠取付部１８の長手方向一端から突設された横枠取付部２０とを有する縦断面Ｌ字形状に形成されている。縦枠取付部１８および横枠取付部２０の両側面の間に亘っては、それぞれ三角板形状の補強部２２が形成されている。   Each of the hole-down hardware 10 and 16 is a so-called attracting metal for attracting and joining the structural members, and is provided so as to project from a longitudinal plate mounting portion 18 having a long plate shape and one longitudinal end of the vertical frame mounting portion 18. It is formed in a vertical cross-sectional L shape having a horizontal frame attachment portion 20. Reinforcing portions 22 each having a triangular plate shape are formed between both side surfaces of the vertical frame mounting portion 18 and the horizontal frame mounting portion 20.

各ホールダウン金物１０，１６の縦枠取付部１８には、ビス１２が挿通されるビス孔が穿設され、ビス孔にビス１２を挿通して縦枠取付部１８を縦枠８，１４にそれぞれ締結することにより、上下壁パネル４，６にそれぞれホールダウン金物１０，１６が固定される。このとき、上壁パネル４の横枠９にはホールダウン金物１０の横枠取付部２０が当接され、また、下壁パネル６の横枠１５にはホールダウン金物１６の横枠取付部２０が当接されている。   A screw hole through which the screw 12 is inserted is formed in the vertical frame attaching portion 18 of each hole down hardware 10, 16, and the screw 12 is inserted into the screw hole so that the vertical frame attaching portion 18 is connected to the vertical frames 8, 14. By respectively fastening, the hole down hardware 10 and 16 is fixed to the upper and lower wall panels 4 and 6, respectively. At this time, the horizontal frame mounting portion 20 of the hole-down hardware 10 is brought into contact with the horizontal frame 9 of the upper wall panel 4, and the horizontal frame mounting portion 20 of the hole-down hardware 16 is contacted with the horizontal frame 15 of the lower wall panel 6. Are in contact.

上壁パネル４と下壁パネル６とは、上壁パネル４に締結固定されているホールダウン金物１０と下壁パネル６に締結固定されているホールダウン金物１６とを、床パネル２の内方に配置された接合金物３４に座金を挿通させたボルトおよびナットにて締結することにより接合される。
接合金物３４は、球状黒鉛鋳鉄（ＦＣＤ）材で一体に鋳造成形され、対向して配される上部壁３６および下部壁３８、ならびに上部壁３６および下部壁３８間に亘って延びる側壁４０を備えている。 The upper wall panel 4 and the lower wall panel 6 include a hole down hardware 10 fastened and fixed to the upper wall panel 4 and a hole down hardware 16 fastened and fixed to the lower wall panel 6. Are joined by fastening them with bolts and nuts through which washers are inserted.
The metal joint 34 is integrally cast with spheroidal graphite cast iron (FCD) material, and includes an upper wall 36 and a lower wall 38 disposed opposite to each other, and a side wall 40 extending between the upper wall 36 and the lower wall 38. ing.

詳しくは図２および図３に示すように、上部壁３６は、上面視長方形状をなして形成され、ボルト４２（図５参照）を挿通するための貫通孔４６が穿設されている。一方、下部壁３８は、上部壁３６と上下方向に対向して配置され、上部壁２６と同様に上面視長方形状をなして形成され、ボルト４８（図５参照）を挿通するための貫通孔５２が穿設されている。これら上部壁３６および下部壁３８において、上壁パネル４のホールダウン金物１０と下壁パネル６のホールダウン金物１６とがボルト４２，４８で接続され、上壁パネル４と下壁パネル６とが床パネル２の内方に配置された接合金物３４に接合される。   Specifically, as shown in FIGS. 2 and 3, the upper wall 36 is formed in a rectangular shape when viewed from above, and has a through hole 46 through which a bolt 42 (see FIG. 5) is inserted. On the other hand, the lower wall 38 is disposed so as to face the upper wall 36 in the vertical direction, is formed in a rectangular shape in a top view like the upper wall 26, and is a through hole for inserting a bolt 48 (see FIG. 5). 52 is formed. In the upper wall 36 and the lower wall 38, the hole-down hardware 10 of the upper wall panel 4 and the hole-down hardware 16 of the lower wall panel 6 are connected by bolts 42 and 48, and the upper wall panel 4 and the lower wall panel 6 are connected. It joins to the joining metal fitting 34 arrange | positioned inside the floor panel 2. As shown in FIG.

接合金物３４の側壁４０は、上部壁３６と下部壁３８との間に亘って、これら上部壁３６および下部壁３８に連なって上下方向に延設されている。
図４に示すように、側壁４０は、一対の平坦部５６ａと、平坦部５６ａに連なる湾曲部５６ｂとを備え、一方を開口したＵ字形状の横断面溝形形状をなして形成されている。
また、図３に示すように、側壁４０は、高さ方向、換言すると上部壁３６と下部壁３８との間の方向の中央において、最も肉薄となる肉薄部６８を有して形成されており、肉薄部６８から上部壁３６および下部壁３８に近づくにつれ次第に肉厚に形成されている。 The side wall 40 of the metal joint 34 extends between the upper wall 36 and the lower wall 38 and extends in the vertical direction so as to continue to the upper wall 36 and the lower wall 38.
As shown in FIG. 4, the side wall 40 includes a pair of flat portions 56 a and a curved portion 56 b that continues to the flat portion 56 a, and is formed to have a U-shaped cross-sectional groove shape that opens one side. .
Further, as shown in FIG. 3, the side wall 40 is formed with a thinned portion 68 that is thinnest in the height direction, in other words, in the center between the upper wall 36 and the lower wall 38. The thickness gradually increases from the thin portion 68 toward the upper wall 36 and the lower wall 38.

接続金物３４を使用する条件下でのＦＥＭ解析を行った結果、上部壁３６および下部壁３８近傍の応力が最もが大きいことが判明しており、このような接続金物３４に発生する応力集中を考慮することにより、接続金物３４の強度および剛性を確保しながら、その重量を大幅に軽減することができる。
側壁４０の内面５６ｃには、上部壁３６近傍に、直方体形状をなす一対の凸部６０，６０が形成されている。凸部６０，６０は、貫通孔４６を間に挟むようにして形成されている。また、凸部６０，６０には、凸部６０，６０間を拡幅する段差部（座金保持部）６２，６２を凹設している。 As a result of the FEM analysis under the condition using the connection hardware 34, it has been found that the stress in the vicinity of the upper wall 36 and the lower wall 38 is the largest, and the stress concentration generated in the connection hardware 34 is reduced. By taking into consideration, the weight and weight of the connection hardware 34 can be greatly reduced while ensuring the strength and rigidity of the connection hardware 34.
On the inner surface 56 c of the side wall 40, a pair of convex portions 60, 60 having a rectangular parallelepiped shape are formed in the vicinity of the upper wall 36. The convex portions 60 are formed so as to sandwich the through hole 46 therebetween. Further, the convex portions 60 and 60 are provided with stepped portions (washer holding portions) 62 and 62 that widen the space between the convex portions 60 and 60.

下部壁３８近傍にも、貫通孔５２を間に挟むようにして、一対の凸部６４，６４が形成され、凸部６４，６４にも凸部６４，６４間を拡幅する段差部（座金保持部）６６，６６を凹設している。
図２に示すように、側壁４０の外面５６ｄには、高さ方向中央において周方向に亘って周方向リブ７０が形成されるとともに、高さ方向全域に亘って縦リブ７２が形成されている。縦リブ７２は周方向リブ７０と直交するようにして上部壁３６および下壁部３８に至るまで形成されている。 A pair of convex portions 64 and 64 are also formed in the vicinity of the lower wall 38 so as to sandwich the through hole 52 therebetween, and the convex portions 64 and 64 also have a stepped portion (a washer holding portion) that widens between the convex portions 64 and 64. 66 and 66 are recessed.
2, on the outer surface 56d of the side wall 40, a circumferential rib 70 is formed in the circumferential direction at the center in the height direction, and a vertical rib 72 is formed in the entire height direction. . The vertical rib 72 is formed to reach the upper wall 36 and the lower wall portion 38 so as to be orthogonal to the circumferential rib 70.

また、周方向リブ７０および縦リブ７２の外縁は、上部壁３６および下部壁３８の対向する外縁同士を結んだ仮想線上に位置付けられている。
これにより、図５に示すように、周方向リブ７０の側面７０ａは、床パネル２の根太９０に当接され、根太９０とビス９２で締結固定されている。また、図６に示すように、縦リブ７２は根太２４の縦枠部３０に当接している。すなわち、周方向リブ７０および縦リブ７２は、接続金物３４を根太２４，９０に接合する際の接合位置に合致する位置に形成される。 Further, the outer edges of the circumferential rib 70 and the vertical rib 72 are positioned on an imaginary line connecting the opposing outer edges of the upper wall 36 and the lower wall 38.
Accordingly, as shown in FIG. 5, the side surface 70 a of the circumferential rib 70 is brought into contact with the joist 90 of the floor panel 2 and is fastened and fixed by the joist 90 and the screw 92. Further, as shown in FIG. 6, the vertical rib 72 is in contact with the vertical frame portion 30 of the joist 24. That is, the circumferential rib 70 and the vertical rib 72 are formed at positions that coincide with the joining positions when joining the connection hardware 34 to the joists 24 and 90.

このような周方向リブ７０および縦リブ７２は、上述した肉薄部６８の形成による減肉によって、接続金物３４の重量を軽減しながら、接続金物３４の上下方向および水平方向における剛性をより一層向上させることができ、さらには周方向リブ７０をビス締結部として利用することもできる。
次に上壁パネル４、下壁パネル６および床パネル２の接合について説明する。
図５および図６に示すように、上部壁３６は床パネル２の横開口溝形状（コ字形状）をなす根太２４の上枠部２６に当接され、下部壁３８は床パネル２の根太２４の下枠部２８に当接されている。 Such circumferential ribs 70 and vertical ribs 72 further improve the rigidity in the vertical and horizontal directions of the connection hardware 34 while reducing the weight of the connection hardware 34 by reducing the thickness by forming the thin portion 68 described above. Further, the circumferential rib 70 can be used as a screw fastening portion.
Next, joining of the upper wall panel 4, the lower wall panel 6, and the floor panel 2 will be described.
As shown in FIGS. 5 and 6, the upper wall 36 is brought into contact with the upper frame portion 26 of the joist 24 having a lateral opening groove shape (U-shape) of the floor panel 2, and the lower wall 38 is made of the joist of the floor panel 2. 24 is in contact with the lower frame portion 28.

根太２４の上枠部２６、前記上枠部２６に貼り付けられる合板等の床構造面材３２、上壁パネル４の横枠９およびホールダウン金物１０の横枠取付部２０には、接合金物３４の上部壁３６の貫通孔４６と連通するボルト４２の挿通孔７４が穿設されている。また、根太２４の下枠部２８、下壁パネル６の横枠１５およびホールダウン金物１６の横枠取付部２０にも、接合金物３４の下部壁３８の貫通孔５２と連通するボルト４８の挿通孔７６が穿設されている。   The upper frame portion 26 of the joist 24, the floor structure surface material 32 such as a plywood attached to the upper frame portion 26, the horizontal frame 9 of the upper wall panel 4 and the horizontal frame attachment portion 20 of the hole-down hardware 10 are joined to the metal fittings. An insertion hole 74 for the bolt 42 communicating with the through hole 46 of the upper wall 36 of 34 is formed. Further, the bolt 48 communicating with the through hole 52 of the lower wall 38 of the joint metal 34 is also inserted into the lower frame portion 28 of the joist 24, the horizontal frame 15 of the lower wall panel 6, and the horizontal frame attachment portion 20 of the hole down hardware 16. A hole 76 is formed.

上部壁３６側において、凸部６０，６０の段差部（座金保持部）６２，６２の間には座金４４が配置されている。段差部（座金保持部）６２，６２間の距離は座金４４の外径よりも若干大きく形成されており、座金４４が脱落しないように段差部（座金保持部）６２，６２で保持されている。作業員は、座金４４を側壁４０の開口から段差部（座金保持部）６２，６２間に水平方向に挿入して容易に配置することができる。   On the upper wall 36 side, a washer 44 is disposed between the step portions (washer holding portions) 62 and 62 of the convex portions 60 and 60. The distance between the step portions (washer holding portions) 62 and 62 is slightly larger than the outer diameter of the washer 44, and is held by the step portions (washer holding portions) 62 and 62 so that the washer 44 does not fall off. . An operator can easily place the washer 44 by inserting it horizontally between the stepped portions (washer holding portions) 62 and 62 from the opening of the side wall 40.

また、凸部６０，６０の段差部（座金保持部）６２，６２以外の部位である回動阻止部７８，７８の間には、ボルト４２の頭部４２ａが配置されている。回動阻止部７８，７８間の距離はボルト４２の頭部４２ａの二面幅寸法よりも若干大きく形成されており、回動阻止部７８，７８によって頭部４２ａの回動が阻止されている。作業員はボルト４２を側壁４０の開口から回動阻止部７８，７８間に下方向から挿入して配置することができる。   Further, the head portion 42 a of the bolt 42 is disposed between the rotation blocking portions 78 and 78 that are portions other than the step portions (washer holding portions) 62 and 62 of the convex portions 60 and 60. The distance between the rotation blocking portions 78 and 78 is formed to be slightly larger than the width across flats of the head portion 42a of the bolt 42, and the rotation blocking portions 78 and 78 prevent the rotation of the head portion 42a. . The operator can insert the bolt 42 from the opening of the side wall 40 between the rotation blocking portions 78 and 78 from below and arrange the bolt 42.

上部壁３６の貫通孔４６および前記挿通孔７４を通過してホールダウン金物１０の横枠取付部２０から突出したボルト４２のねじ部４２ｂには、座金８０が挿通され、座金８０の上からナット８２が螺合されている。
一方、下部壁３８側において、凸部６４，６４の段差部（座金保持部）６６，６６の間には座金５０が配置されている。段差部（座金保持部）６６，６６間の距離は座金５０の外径よりも若干大きく形成されており、座金５０が移動しないように段差部（座金保持部）６６，６６で保持されている。作業員は、座金５０を側壁４０の開口から段差部（座金保持部）６６，６６間に水平方向に挿入して容易に配置することができる。 A washer 80 is inserted through the threaded portion 42b of the bolt 42 that passes through the through hole 46 of the upper wall 36 and the insertion hole 74 and protrudes from the horizontal frame mounting portion 20 of the hole-down hardware 10, and a nut from above the washer 80. 82 is screwed together.
On the other hand, on the lower wall 38 side, a washer 50 is disposed between the step portions (washer holding portions) 66 and 66 of the convex portions 64 and 64. The distance between the step portions (washer holding portions) 66 and 66 is formed to be slightly larger than the outer diameter of the washer 50, and is held by the step portions (washer holding portions) 66 and 66 so that the washer 50 does not move. . An operator can easily place the washer 50 by inserting it in the horizontal direction between the step portions (washer holding portions) 66 and 66 from the opening of the side wall 40.

また、凸部６４，６４の段差部（座金保持部）６６，６６以外の部位である回動阻止部８４，８４の間には、ボルト４８の頭部４８ａが配置されている。回動阻止部８４，８４間の距離はボルト４８の頭部４８ａの二面幅寸法よりも若干大きく形成されており、回動阻止部８４，８４によって頭部４８ａの回動が阻止されている。作業員はボルト４８を側壁４０の開口から回動阻止部８４，８４間に上方向から挿入して配置することができる。   Further, a head portion 48 a of the bolt 48 is disposed between the rotation blocking portions 84 and 84 which are portions other than the step portions (washer holding portions) 66 and 66 of the convex portions 64 and 64. The distance between the rotation preventing portions 84 and 84 is formed to be slightly larger than the width across flats of the head portion 48a of the bolt 48, and the rotation preventing portions 84 and 84 prevent the rotation of the head portion 48a. . The operator can insert and arrange the bolt 48 from the opening of the side wall 40 between the rotation blocking portions 84 and 84 from above.

下部壁３８の貫通孔５２および前記挿通孔７６を通過してホールダウン金物１６の横枠取付部２０から突出したボルト４８のねじ部４８ｂには、座金８６が挿通され、ナット８８が螺合されている。
このように、一対の対向する凸部６０，６０および凸部６４，６４は、それぞれ段差部（座金保持部）６２，６２および段差部（座金保持部）６６，６６によって、高さ方向、換言すると上部壁３６および下部壁３８間の方向における座金４４，５０の移動を規制して保持するとともに、回動阻止部７８，７８および回動阻止部８４，８４によって、ボルト４２，４８の回動を阻止する機能を有している。 A washer 86 is inserted through the threaded portion 48b of the bolt 48 that passes through the through hole 52 of the lower wall 38 and the insertion hole 76 and protrudes from the horizontal frame mounting portion 20 of the hole-down hardware 16, and a nut 88 is screwed together. ing.
In this way, the pair of opposing convex portions 60, 60 and convex portions 64, 64 are formed in the height direction, in other words, by the step portions (washer holding portions) 62, 62 and the step portions (washer holding portions) 66, 66, respectively. Then, the movement of the washers 44 and 50 in the direction between the upper wall 36 and the lower wall 38 is regulated and held, and the bolts 42 and 48 are rotated by the rotation blocking portions 78 and 78 and the rotation blocking portions 84 and 84. It has a function to prevent.

以上のように本実施形態では、座金４４，５０がそれぞれ段差部（座金保持部）６２，６２間および段差部（座金保持部）６６，６６間に保持される。また、ナット８２，８８を螺合する際のボルト４２，４８の供回りがそれぞれ回動阻止部７８，７８間および回動阻止部８４，８４間により阻止される。したがって、上壁パネル４、下壁パネル６の接合作業において、別の作業員がボルト４２，４８および座金４４，５０を押えておく必要がなくなり、上壁パネル４、下壁パネル６の接合作業を容易に行うことができる。   As described above, in this embodiment, the washers 44 and 50 are held between the step portions (washer holding portions) 62 and 62 and between the step portions (washer holding portions) 66 and 66, respectively. Further, the rotation of the bolts 42 and 48 when the nuts 82 and 88 are screwed together is blocked by the rotation blocking portions 78 and 78 and the rotation blocking portions 84 and 84, respectively. Accordingly, in the joining operation of the upper wall panel 4 and the lower wall panel 6, it is not necessary for another worker to hold the bolts 42 and 48 and the washers 44 and 50, and the joining operation of the upper wall panel 4 and the lower wall panel 6 is performed. Can be easily performed.

また、上部壁３６、下部壁３８、側壁４０、凸部６０，６０および凸部６４，６４などの複雑な形状を有する接合金物３４を鋳物として一体に鋳造成形することにより、溶接などで形成した場合に比して、接合金物３４の製作に係る作業負荷を大幅に軽減することができるとともに、接合金物３４をより安価に製造することができる。   Moreover, it formed by welding etc. by integrally casting the metal joint 34 which has complicated shapes, such as the upper wall 36, the lower wall 38, the side wall 40, the convex parts 60 and 60, and the convex parts 64 and 64 as a casting. Compared to the case, the work load related to the production of the metal joint 34 can be greatly reduced, and the metal joint 34 can be manufactured at a lower cost.

さらに、側壁４０は溝形の横断面を有し、上部壁３６および下部壁３８との間の方向の中央において最も肉薄となる肉薄部６８を形成し、肉薄部６８から上部壁３６および下部壁３８に近づくにつれ次第に肉厚とするなど、側壁４０を接合金物３４に作用する応力に応じた肉厚とすることが容易に可能であり、周方向リブ７０および縦リブ７２による接合金物３４の剛性向上も相俟って、接合金物３４の強度および剛性を確保しながら、従来に比して大幅な重量軽減を図ることができ、作業員の作業負荷を低減することもできる。   Further, the side wall 40 has a groove-shaped cross section, and forms a thinned portion 68 that is thinnest at the center in the direction between the upper wall 36 and the lower wall 38, and the upper wall 36 and the lower wall are formed from the thinned portion 68. It is possible to easily make the side wall 40 thick according to the stress acting on the metal joint 34, such as gradually increasing the thickness as it approaches 38, and the rigidity of the metal joint 34 by the circumferential rib 70 and the vertical rib 72. Combined with the improvement, while securing the strength and rigidity of the metal joint 34, the weight can be greatly reduced as compared with the conventional case, and the work load of the worker can also be reduced.

なお、本発明は上記実施形態に制約されるものではなく、種々の変形が可能である。
例えば、上記実施形態において接合金物３４は球状黒鉛鋳鉄（ＦＣＤ）材で一体に鋳造成形されるが、他種の鋳鉄や鋳鋼にて製造しても良いし、鋳造以外の方法で製造しても良い。
また、上記実施形態において接合金物３４は、側壁４０を断面Ｕ字形状としたが、断面略コ字形状や断面略Ｖ字形状等の一側面が開口する断面溝形形状としても良く、また、一対の平坦部５６aを備えた２つの側面が開口する形状としても良い。 In addition, this invention is not restrict | limited to the said embodiment, A various deformation | transformation is possible.
For example, in the above-described embodiment, the metal joint 34 is integrally cast with spheroidal graphite cast iron (FCD) material, but may be manufactured with other types of cast iron or cast steel, or may be manufactured by a method other than casting. good.
In the above embodiment, the metal joint 34 has the U-shaped side wall 40 in the side wall 40, but may have a cross-sectional groove shape in which one side surface such as a substantially U-shaped cross section or a substantially V-shaped cross section is opened. It is good also as a shape which two side surfaces provided with a pair of flat part 56a open.

また、上述した座金保持部および回動阻止部は、一対の部位である凸部６０，６０および凸部６４，６４に形成されるが、座金保持部および回動阻止部をそれぞれ別個の部位として形成しても良いし、一対ではなく１つの連なる部位として形成しても良い。
また、ボルト４２，４８の頭部４２ａ，４８ａの位置にナット８２，８８を配置するとともに、ナット８２，８８の位置にボルト４２，４８の頭部４２ａ，４８ａを配置する締結構造としても良い。この場合、凸部６０，６０および凸部６４，６４には、ナット８２，８８を保持するナット保持部（図示省略）を形成することが望ましい。これにより、ナット８２，８８が保持されて押えておく必要がないとともに回動阻止部によりナット８２，８８の供回りが阻止されるため、接合作業を容易に行うことができる。 Moreover, although the washer holding part and the rotation prevention part described above are formed on the convex parts 60 and 60 and the convex parts 64 and 64 which are a pair of parts, the washer holding part and the rotation prevention part are respectively separate parts. You may form, and you may form as one continuous site | part instead of a pair.
Moreover, it is good also as a fastening structure which arrange | positions the nuts 82 and 88 in the position of the heads 42a and 48a of the volt | bolts 42 and 48, and arrange | positions the heads 42a and 48a of the bolts 42 and 48 in the position of the nuts 82 and 88. In this case, it is desirable to form nut holding portions (not shown) for holding the nuts 82 and 88 on the convex portions 60 and 60 and the convex portions 64 and 64. Thereby, it is not necessary to hold and hold the nuts 82 and 88, and the rotation preventing portion prevents the nuts 82 and 88 from being rotated, so that the joining work can be easily performed.

２ 床パネル（構造部材）
４ 上壁パネル（構造部材）
６ 下壁パネル（構造部材）
３４ 接合金物
３６ 上部壁
３８ 下部壁
４０ 側壁
４２ ボルト
４４ 座金
４６ 貫通孔
４８ ボルト
５０ 座金
５２ 貫通孔
５６ｃ 内面
６０ 凸部
６２ 段差部（座金保持部）
６４ 凸部
６６ 段差部（座金保持部）
７８ 回動阻止部
８２ ナット
８４ 回動阻止部
８８ ナット 2 Floor panels (structural members)
4 Upper wall panel (structural member)
6 Lower wall panel (structural member)
34 Joint metal 36 Upper wall 38 Lower wall 40 Side wall 42 Bolt 44 Washer 46 Through hole 48 Bolt 50 Washer 52 Through hole 56c Inner surface 60 Convex part 62 Step part (washer holding part)
64 Convex part 66 Step part (Washer holding part)
78 Rotation prevention part 82 Nut 84 Rotation prevention part 88 Nut

Claims (5)

ボルトが挿通される貫通孔を穿設し、対向して配される上部壁および下部壁を形成するとともに、
前記上部壁および下部壁間に亘って延び、一方に開口を有する側壁を形成し、
前記側壁の内面には、前記上部壁および下部壁の近傍にそれぞれ、座金を保持する座金保持部と、前記ボルトまたはナットの回動を阻止する回動阻止部と
を備え、
前記座金保持部は、当該座金保持部が前記側壁の内面に設けられた状態で、前記座金が前記開口から水平方向に挿入可能となるように形成された部分を有し、
前記回動阻止部は、当該回動阻止部が前記側壁の内面に設けられた状態で、前記ボルトの頭部または前記ナットが前記開口から上方向または下方向に挿入可能となるように形成された部分を有する、構造部材の接合金物。 Drilling a through hole through which the bolt is inserted, forming an upper wall and a lower wall arranged opposite to each other,
Extending between the upper and lower walls, forming a side wall with an opening on one side;
The inner surface of the side wall includes a washer holding portion for holding a washer in the vicinity of the upper wall and the lower wall, and a rotation blocking portion for preventing rotation of the bolt or nut ,
The washer holding portion has a portion formed so that the washer can be inserted in the horizontal direction from the opening in a state where the washer holding portion is provided on the inner surface of the side wall,
The rotation preventing portion is formed such that the bolt head or the nut can be inserted upward or downward from the opening in a state where the rotation preventing portion is provided on the inner surface of the side wall. A metal fitting for a structural member having an open portion. 前記側壁は、断面溝形形状をなし、
前記側壁の外面には、周方向に亘って形成された周方向リブと、前記上部壁および下壁部に至るまで前記周方向リブと直交するように形成された縦リブとを備えている、請求項１に記載の構造部材の接合金物。 The side wall has a groove shape in cross section ,
The outer surface of the side wall includes a circumferential rib formed in the circumferential direction, and a vertical rib formed to be orthogonal to the circumferential rib until reaching the upper wall and the lower wall portion . A metal fitting for the structural member according to claim 1. 前記上部壁、前記下部壁、前記側壁、前記座金保持部および前記回動阻止部は、一体に鋳造成形されている、請求項１または２の何れかに記載の構造部材の接合金物。   The said upper wall, the said lower wall, the said side wall, the said washer holding | maintenance part, and the said rotation prevention part are the metal fittings of the structural member in any one of Claim 1 or 2 currently integrally cast-molded. 前記座金保持部および前記回動阻止部は、前記側壁の内面に形成された凸部である、請求項１乃至３の何れかに記載の構造部材の接合金物。   The said washer holding | maintenance part and the said rotation prevention part are the joining metal objects of the structural member in any one of the Claims 1 thru | or 3 which are the convex parts formed in the inner surface of the said side wall. 前記側壁は、前記上部壁および下部壁間の方向の中央において最も肉薄であり、前記上部壁および下部壁に近づくにつれ次第に肉厚となる、請求項１乃至４の何れかに記載の構造部材の接合金物。   5. The structural member according to claim 1, wherein the side wall is thinnest at a center in a direction between the upper wall and the lower wall, and gradually becomes thicker as the upper wall and the lower wall are approached. Bonded hardware.
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