JP5485074B2 - Interlayer adhesion hardware for wooden multi-layer buildings - Google Patents
Interlayer adhesion hardware for wooden multi-layer buildings Download PDFInfo
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- JP5485074B2 JP5485074B2 JP2010184855A JP2010184855A JP5485074B2 JP 5485074 B2 JP5485074 B2 JP 5485074B2 JP 2010184855 A JP2010184855 A JP 2010184855A JP 2010184855 A JP2010184855 A JP 2010184855A JP 5485074 B2 JP5485074 B2 JP 5485074B2
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- 239000011229 interlayer Substances 0.000 title claims description 45
- 239000010410 layer Substances 0.000 title description 7
- 239000002184 metal Substances 0.000 claims description 15
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 description 15
- 230000001070 adhesive effect Effects 0.000 description 15
- 238000010276 construction Methods 0.000 description 13
- 239000000463 material Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 6
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000011120 plywood Substances 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Description
本発明は、木造多層建築物用層間密着金物に関し、より詳細にはツーバイフォー工法による多層建築物への使用に好適な木造多層建築物用層間密着金物に関する。 The present invention relates to an interlayer adhesive hardware for a wooden multilayer building, and more particularly to an interlayer adhesive hardware suitable for use in a multilayer building by a two-by-four method.
木造枠組壁工法は、建築構造の木構造の工法の一種であり、一般にツーバイフォー工法として知られている。この工法は、規格化された木材をフレーム状に組み、構造用合板を打ち付けた壁や床で支えることにより、耐力壁と剛床とを一体化するものである。ツーバイフォー工法による建築物は、耐震性、耐火性、断熱性、気密性、防音性等に優れ、鉄筋コンクリート構造（ＲＣ造）や鉄骨構造（Ｓ造）と比べて安価かつ短期間で竣工可能な点でも有利である。この工法は、主に欧米で標準的な工法であるが、日本でも１９７４年頃から建築されるようになった。 The wooden frame wall construction method is a kind of construction method of a wooden structure of an architectural structure, and is generally known as a two-by-four construction method. This construction method integrates the load-bearing wall and the rigid floor by assembling standardized wood in a frame shape and supporting it with a wall or floor on which structural plywood is struck. Buildings based on the two-by-four method are excellent in earthquake resistance, fire resistance, heat insulation, airtightness, soundproofing, etc., and can be completed in a short period of time compared to reinforced concrete structures (RC structures) and steel structures (S structures). But it is advantageous. This construction method is a standard construction method mainly in Europe and the United States, but it has been built in Japan since about 1974.
都市計画で防火地域に指定される地域では、耐火建築物以外の建築が制限されている。耐火建築物とは、主要構造部が耐火構造であるか、火災が終了するまで耐えられることが耐火性能検証法等により確認されたものであって、外壁の開口部で延焼のおそれのある部分には防火戸等を有する建築物をいう。ツーバイフォー工法の建築物には、従来、耐火構造が認められておらず、１００ｍ２以下の小規模な木造建築物でしか建てられなかったが、２００４年にツーバイフォー工法における主要構造部が耐火構造として認定された。その結果、４階建までのツーバイフォー耐火建築物は、建物の種類や面積に関係なく、鉄筋コンクリート等の耐火建築物と同等の設計が可能となった。今後、個人住宅、共同住宅、店舗、ショッピングモール、ホテル、病院、介護施設等において、ツーバイフォー工法による４階建の中層建築物の市場が多いに期待される。 Buildings other than fireproof buildings are restricted in areas designated as fireproof areas in city planning. Fireproof building is a part where the main structural part is fireproof structure or has been confirmed by the fireproof performance verification method etc. that it can withstand until the end of the fire, and there is a possibility of spreading fire at the opening of the outer wall Refers to buildings with fire doors. The building of two-by-four construction method, conventional, not fireproof structure was observed, it was not built only in the 100m 2 following a small wooden building, as the main structure is fireproof structure in the two-by-four construction method in 2004 Certified. As a result, two-by-four refractory buildings up to 4 stories can be designed in the same way as refractory buildings such as reinforced concrete, regardless of the type and area of the building. In the future, it is expected that there will be many markets for four-story middle-rise buildings using the two-by-four method in private houses, apartment houses, stores, shopping malls, hotels, hospitals, nursing care facilities, and the like.
木造建築物では、建物の浮き上がりを防ぐために、上下階の柱相互の緊結や土台・基礎と柱の緊結を担うホールダウン金物が各階の建物出隅等に設置される。しかし、多階層からなるツーバイフォー建築物では、地震等による浮き上がり力が増し、通常のホールダウン金物ではその対応が困難となる。 In wooden buildings, in order to prevent the building from being lifted, hole-down hardware that connects the upper and lower floors to each other and the foundation, foundation, and pillars is installed at the corner of the building on each floor. However, two-by-four buildings consisting of multiple floors increase the lifting force due to earthquakes and the like, and it is difficult to deal with ordinary hole-down hardware.
そこで、上記ホールダウン金物に代えて、木造建築物の各階層の天端レベルから下部の床レベルの間を長尺のタイロッドで緊締する方式が考えられる。長尺のタイロッドは、図６に示すように各階層でタイロッドを支持する座金１０とナット３１を設置することが望ましい。その際、建築後に各階層の木材の収縮によって座金１０とナット３１との間に生じる隙間を無くする配慮が必要である。 Therefore, instead of the hole-down hardware, a method of tightening with a long tie rod between the top level of each level of the wooden building and the lower floor level can be considered. As shown in FIG. 6, the long tie rod is preferably provided with a washer 10 and a nut 31 that support the tie rod at each level. At that time, it is necessary to consider the elimination of a gap generated between the washer 10 and the nut 31 due to contraction of wood in each layer after construction.
ボルトやナットを一定の締め付けトルクで締め付けるネジ締付装置が、開発されている。例えば、特許文献１には、巻き弾性を有するゼンマイバネと、ゼンマイバネを巻き弾性を有する状態で係止した係止手段とを備え、ゼンマイバネにおける径内側の先端側が、ボルトやナット等の被締付部材に係合され、ゼンマイバネにおける径外側の後端側が被締付部材を装着した被装着材に固定され、係止手段が、係止解除可能なものからなることを特徴とするネジ締め付け具が開示される。特許文献２には、締付対象物に締付けられる被締付材を締付方向へ付勢する付勢部材の一端部に被締付材に係合する係合部が一体的に形成され、付勢部材に被締付材に対する付勢力の拘束，動作を切換える切換部材を連係させた締付装置において、切換部材は付勢部材の係合部と他端部側とを挟持して付勢力を拘束し付勢部材の係合部と他端部側とから離脱されて付勢力を動作させるものであることを特徴とする締付装置が開示される。 Screw tightening devices that tighten bolts and nuts with a constant tightening torque have been developed. For example, Patent Document 1 includes a spring spring having winding elasticity and a locking means that locks the spring in a state having winding elasticity, and a distal end side on the inner diameter side of the spring spring is a tightening member such as a bolt or a nut. A screw fastening tool is disclosed in which the rear end side of the outer diameter of the mainspring is fixed to a material to which a member to be tightened is attached, and the locking means is capable of releasing the locking. Is done. In Patent Document 2, an engagement portion that is engaged with the tightening material is integrally formed at one end portion of the biasing member that biases the tightening material to be tightened on the tightening target in the tightening direction. In a clamping device in which a biasing member is linked with a switching member that switches the restraint and operation of the biasing force against the material to be clamped, the switching member holds the engaging portion of the biasing member and the other end side so as to hold the biasing force. A tightening device is disclosed in which the urging force is operated by separating the urging member from the engaging portion and the other end side of the urging member.
しかし、上記従来のネジ締付装置は、上下方向に延在する長尺のタイロッドが存在する場でのナットの締め付け、装置の設置し易さ、加工し易さ、機能性などの面で向いていない。 However, the above-described conventional screw tightening device is suitable for tightening a nut in a place where a long tie rod extending in the vertical direction exists, ease of installation of the device, ease of processing, functionality, and the like. Not.
そこで、本発明は、長尺タイロッドが存在する多層木造建築物用に適した層間密着金物を提供することにある。 Then, this invention is providing the interlayer adhesion metal fitting suitable for multi-layered wooden buildings in which a long tie rod exists.
本発明者は、上記課題を鋭意検討した結果、以下の発明により解決できることを見いだした。すなわち、本発明は、木造建築物の多層階にわたって垂直に延在させるタイロッドが貫通する孔１２を有する座金１０、前記座金１０に載置され、前記タイロッドに螺合するナット３１、前記タイロッドを囲むように立設され、かつ前記ナット３１を一体化した側壁３２を有する回転体３０、前記座金１０の上面に前記回転体３０を囲むように載置された側壁４１を有するケーシング４０、一端部が前記回転体の側壁３２の上方部分に固定され、そして他端部が前記ケーシングの側壁４１に固定され、前記ナット３１を下向きに回転させる力を付与する板バネ３５、及び前記回転体３０の外側方から脱着可能に当接して前記板バネ３５の動きを固定するための板バネ固定手段５０を備える木造多層建築物用層間密着金物であって、前記側壁３２の下方部分と前記ナット３１とを、脱着可能な結合手段３８により一体化したことを特徴とする、前記層間密着金物（以下、「層間密着金物」という）を提供する。 As a result of intensive studies on the above problems, the present inventor has found that the following problems can be solved. That is, the present invention surrounds a washer 10 having a hole 12 through which a tie rod extending vertically across a multi-layer floor of a wooden building passes, a nut 31 mounted on the washer 10 and screwed into the tie rod, and the tie rod. And a casing 40 having a side wall 41 placed so as to surround the rotary body 30 on the upper surface of the washer 10, and one end portion of which is A leaf spring 35 fixed to the upper part of the side wall 32 of the rotating body and having the other end fixed to the side wall 41 of the casing and applying a force for rotating the nut 31 downward, and the outside of the rotating body 30 An inter-layer metal fitting for a wooden multi-layered building provided with a leaf spring fixing means 50 for removably coming into contact with the side and fixing the movement of the leaf spring 35, wherein the side wall 3 The lower portion of the said nut 31, characterized by being integrated by removable coupling means 38, the interlayer adhesion hardware (hereinafter, referred to as "interlayer adhesion hardware") provides.
木造多層建築物用層間密着金物は、前記ケーシング４０の水平方向の外形の大きさは一辺が８０〜８５ｍｍ又は１３０〜１３５ｍｍであることが好ましい。 It is preferable that the horizontal dimension of the said casing 40 is 80-85 mm or 130-135 mm in one side as for the size of the horizontal direction of the said casing 40 in the interlayer adhesion metal fittings for wooden multilayer buildings.
前記側壁３２と前記ナット３１とをビス等の脱着可能な結合手段により一体化させることが好ましい。 The side wall 32 and the nut 31 are preferably integrated by a detachable coupling means such as a screw.
前記板バネ３５は、渦巻きバネからなることが好ましい。 The leaf spring 35 is preferably a spiral spring.
請求項１の木造多層建築物用層間密着金物は、木造多層建築物の各階へ設置するときに、各階層の床材間とナット３１の隙間補正に有効である。図４に示すように、基礎から天井までカプラ２１で繋がれたタイロッド２０の各階層の床梁材７１上に設置された座金１０を押さえるためのナット３１がタイロッド２０にねじ込まれている。木材の乾燥収縮や建物の自重により生じるナット３１と座金１０との隙間が生じようとした時に、本発明の層間密着金物１に内蔵される板バネ３５の復元力によりナット３１が下方に回転して、その隙間を無くする。こうして、柱材、座金、ナット及びタイロッドの一体性が維持され、タイロッドの機能が担保される。 When the interlayer metal fitting for a wooden multi-layered building is installed on each floor of the wooden multi-layered building, it is effective for correcting the gap between the floor material of each layer and the nut 31. As shown in FIG. 4, a nut 31 for pressing the washer 10 installed on the floor beam material 71 of each level of the tie rod 20 connected by the coupler 21 from the foundation to the ceiling is screwed into the tie rod 20. When a gap between the nut 31 and the washer 10 caused by drying shrinkage of the wood or the weight of the building is about to occur, the nut 31 is rotated downward by the restoring force of the leaf spring 35 built in the interlayer adhesive fitting 1 of the present invention. And eliminate the gap. Thus, the integrity of the column member, washer, nut and tie rod is maintained, and the function of the tie rod is secured.
上記層間密着金物は、構造が簡単で、部品数が少ないため、安価に作ることが可能である。さらに、側壁とナットとをビスのような脱着可能な結合手段により一体化させたので、ナットの大きさの許容範囲が広がり、その結果、一種類の層間密着金物で、低層から高層までのあらゆる多層木造建築物に使用されるタイロッドのあらゆる材質や太さに対応できる。例えば、低層建築物ではタイロッドの径が細くてよいのでナットの径を小さくでき、一方、高層建築物で太いタイロッドを使用する場合は大きなナットに代えることができる。 The interlayer adhesive hardware can be manufactured at low cost because of its simple structure and a small number of parts. Furthermore, since the side wall and the nut are integrated by a detachable coupling means such as a screw, the allowable range of the size of the nut is widened. As a result, with one kind of inter-layer adhesive hardware, all types from low to high It can be used for all materials and thickness of tie rods used in multi-layered wooden buildings. For example, the diameter of a tie rod may be small in a low-rise building, so the diameter of the nut can be reduced. On the other hand, when a thick tie rod is used in a high-rise building, it can be replaced with a large nut.
しかも、ナットと側壁とを脱着可能に一体化したことは、層間密着金物の設置の面でも有利である。すなわち、層間密着金物を設置する際に、タイロッドにナットを据え付けてから回転体を載せ、その側壁をナットにビス等で固定するという非常に設置しやすい手順が実現可能となる。 In addition, the integration of the nut and the side wall so as to be detachable is also advantageous in terms of installation of the interlayer adhesive hardware. That is, when installing the interlayer adhesion hardware, it is possible to realize a procedure that is very easy to install, in which a nut is mounted on a tie rod and then a rotating body is mounted and its side wall is fixed to the nut with a screw or the like.
上記木造多層建築物用層間密着金物は、タイロッドやナットの強度に何ら関係せず、回転体を含む密着金物自体に法的な認定を取る必要がない点でも、従来の密着金物よりも有利である。 The interlaminar metal fittings for wooden multi-layered buildings have advantages over conventional adhesive hardware in that they have nothing to do with the strength of tie rods and nuts, and it is not necessary to obtain legal certification for the adhesive hardware itself including the rotating body. is there.
請求項２の発明によれば、層間密着金物のケーシングの水平方向の外形の大きさを一辺が８０〜８５ｍｍ又は１３０〜１３５ｍｍとしたので、ツーバイフォー工法で建てられる木造建築物へは、その構造上有する一片８５ｍｍ又は１３５ｍｍの空間へ層間密着金物を嵌合することができ、よって、層間密着金物に固定手段を付加する必要がなくなる。これは、従来技術のネジ締付装置にない本発明特有の効果である。 According to the invention of claim 2, since the horizontal dimension of the casing of the interlayer adhesion hardware is 80 to 85 mm or 130 to 135 mm on one side, the wooden building built by the two-by-four method is structurally The interlayer adhesive hardware can be fitted into the space of 85 mm or 135 mm having one piece, and thus it is not necessary to add a fixing means to the interlayer adhesive hardware. This is an effect unique to the present invention which is not found in the prior art screw fastening device.
請求項３の発明によれば、限られたスペースでエネルギーを多く蓄え、少量ずつ取り出し可能である。特にツーバイフォー工法の木造建築物では、設置スペースが狭いので、渦巻きバネの利用が特に有利である。 According to invention of Claim 3, much energy can be stored in the limited space and it can take out little by little. In particular, in a two-by-four method wooden building, the installation space is narrow, so the use of a spiral spring is particularly advantageous.
本発明の層間密着金物を木造建築物に設置することで、都市部防火地域でのツーバイフォー耐火建築物への普及（例えば高齢者向け施設、幼稚園、保育所、ホテル、ショッピングセンター、レストランなど）に大いに寄与する。 By installing the interlayer adhesion hardware of the present invention in a wooden building, it can be widely used for two-by-four fireproof buildings in urban fire prevention areas (for example, facilities for the elderly, kindergartens, nurseries, hotels, shopping centers, restaurants, etc.) Greatly contribute.
本発明の一実施態様を図１〜５を用いて説明する。層間密着金物１は、図４に示すように、建築物の各階層の天端レベルから床レベルまでの間に垂直に延在するタイロッド２０の周りに取り付けられる。タイロッド２０は、各階層の床レベルに向かって垂直に延在する棒体であり、その長さは、通常、各階層の高さにほぼ等しい。各タイロッドは、通常、カプラ等でできたタイロッド接続手段２１で最上階から基礎まで連結される。タイロッド２０は、後述するナット３１と螺合するようにネジが切られている。 One embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 4, the interlayer adhesive hardware 1 is attached around a tie rod 20 that extends vertically between the top level and the floor level of each level of the building. The tie rod 20 is a rod body that extends vertically toward the floor level of each layer, and its length is generally approximately equal to the height of each layer. Each tie rod is usually connected from the top floor to the foundation by a tie rod connecting means 21 made of a coupler or the like. The tie rod 20 is threaded so as to be screwed with a nut 31 described later.
層間密着金物１の座金１０は、梁の上に位置して、タイロッド２０を鉛直に貫通させるための中心孔１２を有する。座金１０の形状は、梁や柱材の変化が座金１０とさらにナット３１に伝わる構造であればよく、図１では平板である。 The washer 10 of the interlayer adhesion hardware 1 is located on the beam and has a center hole 12 for vertically penetrating the tie rod 20. The shape of the washer 10 may be a structure in which changes in beams and column materials are transmitted to the washer 10 and further to the nut 31, and is a flat plate in FIG.
座金１０の上に、タイロッド２０に螺合するナット３１が位置する。そして、ナット３１上に回転体３０が位置する。この回転体３０は、後述する板バネ３５の復元力によって回転し、そして、回転体の側壁と一体化したナットも追随して回転する。 On the washer 10, a nut 31 that is screwed into the tie rod 20 is located. The rotating body 30 is positioned on the nut 31. The rotating body 30 is rotated by a restoring force of a leaf spring 35 to be described later, and the nut integrated with the side wall of the rotating body also follows and rotates.
回転体３０は、前記タイロッドを囲むように立設された側壁３２を有する。側壁３２は、中間に設けた内径がタイロッド２０の径より若干大きく、外径が側壁の下方部分よりも若干大きいリング３７を境界として、上方のバネ巻き芯として機能する部分と、下方のナットを袴のようにカバーする部分とに分かれる。 The rotating body 30 has a side wall 32 erected so as to surround the tie rod. The side wall 32 has a portion that functions as an upper spring winding core, and a lower nut, with a ring 37 having an inner diameter provided in the middle slightly larger than the diameter of the tie rod 20 and an outer diameter slightly larger than the lower portion of the side wall. It is divided into parts that cover like a kite.
側壁３２の上方部分は、後述する板バネ３５の一端を固定するためのスリット３３を有する。板バネに渦巻きバネを使用する場合は、図２のように、渦巻きバネがこのスリットを起点として側壁３２の上方部分に巻回される。 The upper part of the side wall 32 has a slit 33 for fixing one end of a leaf spring 35 described later. When a spiral spring is used as the leaf spring, the spiral spring is wound around the upper portion of the side wall 32 with this slit as a starting point, as shown in FIG.
側壁３２の下方部分は、結合手段３８（図１では複数のビス）でナット３１の側面と脱着可能に一体化される。従来のほとんどのネジ締付装置はボルトと回転体とが嵌合する形状を採用するため、ボルトの大きさに応じてそれに適合するネジ締付装置を区々用意する必要があった。それに対して、本発明の層間密着金物では、ナットと回転体との形状を合わせるような必要がなく、その結果、一種類の層間密着金物を用意すれば、ほとんどすべての多層木造建築物に対応可能となる。さらに、層間密着金物を設置する時の利便性も格段に向上する。 The lower portion of the side wall 32 is detachably integrated with the side surface of the nut 31 by a coupling means 38 (a plurality of screws in FIG. 1). Since most of the conventional screw tightening devices adopt a shape in which the bolt and the rotating body are fitted, it is necessary to prepare various screw tightening devices suitable for the size of the bolt. On the other hand, with the interlayer adhesive hardware of the present invention, it is not necessary to match the shape of the nut and the rotating body. As a result, if one kind of interlayer adhesive hardware is prepared, it can be applied to almost all multilayer wooden buildings. It becomes possible. Furthermore, the convenience when installing the interlayer adhesive hardware is also greatly improved.
側壁３２の下方部分よりはみ出たリング３７のツバ部は、ケーシング４０の内壁に突設したツバ受け突起４９によって担持される。 The flange portion of the ring 37 that protrudes from the lower portion of the side wall 32 is supported by a flange receiving projection 49 that protrudes from the inner wall of the casing 40.
座金１０の上面には、回転体３０を囲むように載置された側壁４１を有するケーシング４０を備える。ケーシング４０は、図１に示すような高さ調整機構４３を備えてもよい。これにより、ナット３１の高さを自由に変更することができる。 On the upper surface of the washer 10, a casing 40 having a side wall 41 placed so as to surround the rotating body 30 is provided. The casing 40 may include a height adjustment mechanism 43 as shown in FIG. Thereby, the height of the nut 31 can be changed freely.
ケーシング４０の上面は、タイロッド２０の断面よりも大きい径を有してタイロッドが遊貫できる上孔４６を有する蓋４２を備える。蓋によって層間金物内への落下物の侵入を防止する。 The upper surface of the casing 40 includes a lid 42 having a diameter larger than the cross section of the tie rod 20 and having an upper hole 46 through which the tie rod can freely pass. The lid prevents the fallen object from entering the interlayer hardware.
ケーシング４０の下面は、側壁３２の下端が延出できる程度の径を有する下孔４４が開いている。下孔４４の輪が側壁３２の下端付近をガイドすることで、回転体３０の芯ずれや傾斜を防止する。 The lower surface of the casing 40 has a lower hole 44 having a diameter that allows the lower end of the side wall 32 to extend. The ring of the lower hole 44 guides the vicinity of the lower end of the side wall 32, thereby preventing misalignment and inclination of the rotating body 30.
板バネ３５の復元力をナット３１に伝えるためには、層間密着金物を建物に固定する必要がある。一方、ツーバイフォー工法で建てられる建築物は、その構造上、一片９０ｍｍ又は１４０ｍｍという定型の空間が常に存在する。そこで、層間密着金物の水平方向の外形の大きさを一辺が８０〜８５ｍｍ又は１３０〜１３５ｍｍとして上記空間に層間密着金物を嵌合させると、層間密着金物自体に固定手段を設けなくても層間密着金物の固定が可能になる。これも、従来技術のネジ締付装置にない本発明特有の特徴である。 In order to transmit the restoring force of the leaf spring 35 to the nut 31, it is necessary to fix the interlayer adhesion hardware to the building. On the other hand, a building built by the two-by-four method always has a fixed space of 90 mm or 140 mm per piece due to its structure. Therefore, when the size of the outer dimension of the interlayer adhesion hardware is 80 to 85 mm or 130 to 135 mm on one side and the interlayer adhesion hardware is fitted into the above space, the interlayer adhesion is not required even if the interlayer adhesion hardware itself is not provided with a fixing means. Hardware can be fixed. This is also a feature unique to the present invention that is not present in the conventional screw fastening apparatus.
本発明のケーシング４０は、後述する板バネ３５の一端（図２の渦巻きバネの外端）を固定するためのスリット４１を有する。 The casing 40 of the present invention has a slit 41 for fixing one end of a leaf spring 35 (the outer end of the spiral spring in FIG. 2) described later.
層間密着金物は、ナット３１を下向きに回転させる力を付与する板バネ３５を備え、ナット３１と座金１０との間で、木材の収縮や荷重による建物の沈み込みが原因で発生する緩みを防止する。そのために、板バネ３５の一端部が回転体の側壁３２のスリット３３に固定され、そして他端部がケーシングの側壁４１のスリット４５に固定される。 The inter-layer adhesive hardware includes a leaf spring 35 that applies a force to rotate the nut 31 downward, and prevents loosening caused by contraction of the wood or sinking of the building due to load between the nut 31 and the washer 10. To do. For this purpose, one end of the leaf spring 35 is fixed to the slit 33 of the side wall 32 of the rotating body, and the other end is fixed to the slit 45 of the side wall 41 of the casing.
板バネ３５として図１のような渦巻きバネを採用すると、限られたスペースでエネルギーを多く蓄え、少量ずつ取り出し可能である。 If a spiral spring as shown in FIG. 1 is adopted as the leaf spring 35, a large amount of energy can be stored in a limited space and can be taken out little by little.
層間密着金物は、回転体３０の外側方から脱着可能に当接して板バネを固定する手段としてのボルト５０を備える。当接する場所は、回転体３０の側壁３２又は板バネ３５のいずれでもよい。図１では、ボルト５０がケーシング４０の側面に空けた板バネ固定手段挿通孔４８を通って渦巻きバネ３５に当接している。板バネを巻き締めた状態でボルトを締め込み、この状態で層間密着金物を設置後、ボルト５０を取り除くことで、渦巻きバネ３５の復元力を働かせる。 The interlayer adhesion hardware includes a bolt 50 as means for fixing the leaf spring by coming into contact with the outer side of the rotating body 30 so as to be detachable. The place of contact may be either the side wall 32 of the rotating body 30 or the leaf spring 35. In FIG. 1, the bolt 50 is in contact with the spiral spring 35 through the leaf spring fixing means insertion hole 48 opened in the side surface of the casing 40. The bolts are tightened in a state where the leaf springs are tightened, and after the interlayer metal fittings are installed in this state, the bolts 50 are removed to exert the restoring force of the spiral spring 35.
図３は、板バネ固定手段５０の設置場所の変更例である。図３において、ボルト５０がケーシング４０の側面に開けた板バネ固定手段挿通孔４８を通って、側壁３２の下方部分に固着したボルト受け用ナット３６に当接する。渦巻きバネ３５を手動等で巻き締めた状態でボルト５０をナット３６に当接することにより、巻き締め状態を維持する。 FIG. 3 is an example of changing the installation location of the leaf spring fixing means 50. In FIG. 3, the bolt 50 passes through the leaf spring fixing means insertion hole 48 opened in the side surface of the casing 40 and abuts against the bolt receiving nut 36 fixed to the lower portion of the side wall 32. The bolt 50 is brought into contact with the nut 36 in a state where the spiral spring 35 is manually tightened, so that the tightened state is maintained.
以下に、上記実施態様の層間密着金物の使用方法を説明する。まず、本発明の層間密着金物の渦巻きバネ３５を手動等の適宜の手段で巻き締めて、ナット３１を下向きに回転させる力を蓄える。巻き締めた渦巻きバネ３５に板バネ固定手段としてのボルト５０を締め込み、挿通孔４８を通して渦巻きバネ３５に当接させて、渦巻きバネ３５の巻締め状態を保持する。 Below, the usage method of the interlayer adhesion metal fitting of the said embodiment is demonstrated. First, the spiral spring 35 of the interlayer metal fitting of the present invention is tightened by an appropriate means such as manual operation, and a force for rotating the nut 31 downward is stored. A bolt 50 as a plate spring fixing means is fastened to the spiral spring 35 that has been tightened, and is brought into contact with the spiral spring 35 through the insertion hole 48 to maintain the tightened state of the spiral spring 35.
建築中又は建築後の梁材の金物の設置場所にタイロッド２０を設置する。次いで、梁材７１の上に座金１０を載せ、ナット３１を締め込む。次いで、ナット３１の上に、バネが緊締状態の回転体３０を載せて、ナット３１と側壁３２とをビスで固定する。回転体３０の上にケーシング４０を載せ、適宜、高さ調整機構４３でケーシング４０の高さを調整する。ボルト５０の渦巻きばね３５への当接を開放する。これにより、渦巻きバネ３５の復元力がナット３１を下方向へ回転させる力がナット３１に作用する。適宜、図５の矢印で示すように、層間密着金物を合板又はボード７２で遮蔽する。こうして、建築後の一定期間に生じる柱材や床梁材の収縮によって生まれる柱材と座金１０との隙間を未然に防止する。各階に取り付けた本発明の層間密着金物の効果が総合して、木造多層建築物の一体性が、建築時のまま保持される。 The tie rod 20 is installed at the installation location of the hardware of the beam material during or after construction. Next, the washer 10 is placed on the beam member 71 and the nut 31 is tightened. Next, the rotating body 30 with the spring tightened is placed on the nut 31, and the nut 31 and the side wall 32 are fixed with screws. The casing 40 is placed on the rotating body 30, and the height of the casing 40 is adjusted by the height adjusting mechanism 43 as appropriate. The contact of the bolt 50 with the spiral spring 35 is released. Thereby, the restoring force of the spiral spring 35 acts on the nut 31 to rotate the nut 31 downward. As appropriate, as shown by the arrow in FIG. In this way, the gap between the column member and the washer 10 generated by the contraction of the column member and floor beam member that occurs in a certain period after construction is prevented in advance. The effects of the interlayer adhesion hardware of the present invention attached to each floor are combined, and the integrity of the wooden multi-layered building is maintained as it is during construction.
本発明の層間密着金物を使用するのに好適な建築物は、ツーバイフォー多層耐火建築物である。具体的には、住宅、学校、共同住宅、ホテル、病院、高齢者施設、保育所等のあらゆる木造建築に好適である。また、低層階をＲＣ造等とし、４階層までの上階層を枠組壁工法とした複合建築も可能である。 A suitable building for using the interlayer metal fittings of the present invention is a two-by-four multi-layer fireproof building. Specifically, it is suitable for all wooden buildings such as houses, schools, apartment houses, hotels, hospitals, elderly facilities, nurseries and the like. In addition, it is possible to construct a composite building in which the lower floors are RC structures, etc., and the upper floors up to four floors are framed wall construction methods.
１ 木造多層建築物用層間密着金物
１０ 座金
１２ 孔
２０ タイロッド
２１ タイロッド接続手段（カプラ）
３０ 回転体
３１ ナット
３２ 側壁
３３ スリット
３５ 板バネ（渦巻きバネ）
３６ ボルト受け用ナット
３７ リング
３８ 結合手段（ビス）
４０ ケーシング
４１ 側壁
４２ 蓋
４３ 高さ調整機構
４４ 下孔
４５ スリット
４６ 上孔
４８ バネ固定手段挿通孔
４９ ツバ受け突起
５０ 板バネ固定手段（ボルト）
７０ 柱材
７１ 床梁材
７２ 合板又はボード
DESCRIPTION OF SYMBOLS 1 Interlayer adhesion metal fittings for wooden multilayer buildings 10 Washer 12 Hole 20 Tie rod 21 Tie rod connection means (coupler)
30 Rotating body 31 Nut 32 Side wall 33 Slit 35 Leaf spring (spiral spring)
36 Bolt receiving nut 37 Ring 38 Coupling means (screw)
40 Casing 41 Side wall 42 Lid 43 Height adjusting mechanism 44 Lower hole 45 Slit 46 Upper hole 48 Spring fixing means insertion hole 49 Collar receiving projection 50 Plate spring fixing means (bolt)
70 Column material 71 Floor beam material 72 Plywood or board
Claims (3)
前記座金（１０）に載置され、前記タイロッドに螺合するナット（３１）、
前記タイロッドを囲むように立設され、かつ前記ナット（３１）を一体化した側壁（３２）を有する回転体（３０）、
前記座金（１０）の上面に前記回転体（３０）を囲むように載置された側壁（４１）を有するケーシング（４０）、
一端部が前記回転体の側壁（３２）の上方部分に固定され、そして他端部が前記ケーシングの側壁（４１）に固定され、前記ナット（３１）を下向きに回転させる力を付与する板バネ（３５）、及び
前記回転体（３０）の外側方から脱着可能に当接して前記板バネ（３５）の動きを固定するための板バネ固定手段（５０）を備える木造多層建築物用層間密着金物であって、
前記側壁（３２）の下方部分と前記ナット（３１）とを、脱着可能な結合手段（３８）により一体化したことを特徴とする、前記層間密着金物。 A washer (10) having a hole (12) through which a tie rod extends vertically across a multi-storey floor of a wooden building;
A nut (31) mounted on the washer (10) and screwed into the tie rod;
A rotating body (30) which has a side wall (32) which is erected so as to surround the tie rod and which integrates the nut (31);
A casing (40) having a side wall (41) placed on the upper surface of the washer (10) so as to surround the rotating body (30);
One end is fixed to the upper part of the side wall (32) of the rotating body, and the other end is fixed to the side wall (41) of the casing, and applies a force to rotate the nut (31) downward. (35), and interlayer adhesion for a wooden multi-layered building, comprising leaf spring fixing means (50) for removably contacting the outer side of the rotating body (30) to fix the movement of the leaf spring (35) Hardware,
The interlayer adhesion metal fitting characterized in that the lower part of the side wall (32) and the nut (31) are integrated by a detachable coupling means (38).
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