JP4084739B2 - Fire - Google Patents

Description

本発明は、木材等からなる軸組架構の補強材として利用される鋼製の火打ちに関する。   The present invention relates to a steel fire strut that is used as a reinforcing material for a frame structure made of wood or the like.

従来から、火打ちには木製の角材などが使用され、水平構面の入隅部における２部材間を斜めに結んで隅を固め、地震や風などの水平荷重による変形を防いでいる。このような火打ちは、現場にて火打ち材の端部を４５°の角度に切断する作業が必要であり、施工に手間がかかる。   Conventionally, wooden squares and the like have been used for firing, and the two members at the corners of the horizontal construction surface are diagonally connected to solidify the corners to prevent deformation due to horizontal loads such as earthquakes and winds. Such fire-firing requires work to cut the end of the fire-fired material at an angle of 45 ° at the site, which takes time and effort.

そこで、鋼製の火打ち材も製品化され、日本住宅木材技術センターが規定するＺマーク表示の火打ち金物も多用されている。この火打ち金物には、構造材の側面とほぼ平行となる取付面が形成されている。そして、施工にあたっては、入隅部を形成する構造材の側面に、あらかじめ墨付けしてボルト挿通孔を切削する作業を行い、火打ち金物の両端を構造材にボルトで緊結する。   Therefore, steel flint materials have also been commercialized, and Z-marked flints defined by the Japan Residential Wood Technology Center are also frequently used. An attachment surface that is substantially parallel to the side surface of the structural material is formed on the fired metal object. In construction, the side of the structural material that forms the corner is painted in advance to cut the bolt insertion hole, and both ends of the fired metal object are fastened to the structural material with bolts.

このほか、例えば特許文献１では、木製の火打ち材を金属板からなる取付金具を使用して構造材に取り付ける技術が開示されている。この取付金具は、ボルト挿通孔と取付孔とが穿設された取付プレートに、縦壁及び支持壁とを備えて形成され、構造材に固定される。そして、この取付金具に火打ち材の端部を納め、構造材と火打ち材とをボルトで締結する構成となっている。   In addition to this, for example, Patent Document 1 discloses a technique for attaching a wooden fired material to a structural material using an attachment fitting made of a metal plate. The mounting bracket is formed on a mounting plate in which a bolt insertion hole and a mounting hole are formed, and includes a vertical wall and a support wall, and is fixed to a structural material. And it has the structure which puts the edge part of a burning material in this attachment metal fitting, and fastens a structural material and a burning material with a volt | bolt.

また、特許文献２に示されるような鋼製の火打ちも提案され、火打ち材とは別体の係止金具を構造材の側面上部に取り付け、係止金具に設けられたボルト穴を介して、係止金具と火打ち材とがボルト緊結される構成となっている。
特開平１０−１１５００５号公報 特開２０００−２４８６１９号公報 In addition, steel firing as shown in Patent Document 2 has also been proposed, attaching a locking bracket separate from the fired material to the upper side of the structural material, and through a bolt hole provided in the locking bracket, The locking metal fitting and the fired material are configured to be bolted together.
Japanese Patent Laid-Open No. 10-111005 JP 2000-248619 A

前記従来の火打ちでは、構造材に対する火打ちの取付位置を、入隅部の角から両材に対して等距離で、かつ水平となる位置に正確に墨付けして、ボルト挿通孔を切削する必要があった。この作業は非常に面倒であり、墨付けの精度が悪いと火打ちの端部が構造材の側面に合わなくなって、火打ちの取付精度が低下し、所定の強度が発現されないという問題があった。   In the above-mentioned conventional firing, it is necessary to cut the bolt insertion hole by accurately marking the mounting position of the firing with respect to the structural material at an equal distance from the corner of the entrance corner to the both materials and at a horizontal position. was there. This work is very troublesome, and if the accuracy of marking is poor, the end of the fire is not aligned with the side surface of the structural material, and there is a problem that the mounting accuracy of the fire is lowered and the predetermined strength is not expressed.

また、火打ちは、柱、梁、胴差し等によって軸組が形成された後に取り付けられるので、床組等の作業足場となるものが十分ではない。このため、作業者は脚立等を使用して不安定な状態で作業することが多いため、作業者一人では足りず、複数人が必要となることもあった。   In addition, since the firework is attached after the shaft assembly is formed by pillars, beams, torso, etc., a work scaffold such as a floor assembly is not sufficient. For this reason, since the worker often works in an unstable state using a stepladder or the like, one worker is not enough, and a plurality of people may be required.

加えて、近年では建物の耐風強度を確保するために柱スパンが狭められる傾向にあり、納まりよくするために、かかる柱スパンに合わせた狭い間隔で土台、床梁、小屋梁、軒桁等の構造材が配置されることもある。さらに、このような構造材で形成された略コ字形の水平構面に、火打ちを２本〜３本配置して必要強度を確保しなければならない場合もあり、従来の火打ちではサイズが合わず、このような水平構面の短辺側の両隅部に配置することができない。このような場合、新たなつなぎ梁を水平構面に配設して所定の強度を得るようにするなどの対応が必要となる。そのため部材点数が増え、コスト高となるだけでなく、施工工数も増加するといった問題点があった。   In addition, in recent years, there is a tendency for column spans to be narrowed to ensure the wind resistance of buildings, and in order to ensure good fit, foundations, floor beams, shed beams, eaves girders, etc. are closely spaced according to the column span. Structural materials may be placed. Furthermore, there are cases where it is necessary to ensure the required strength by arranging two to three fire-fires on a substantially U-shaped horizontal surface formed of such a structural material. It is impossible to dispose at both corners on the short side of such a horizontal surface. In such a case, it is necessary to take measures such as arranging a new connecting beam on the horizontal surface to obtain a predetermined strength. For this reason, there is a problem that not only the number of members is increased and the cost is increased, but also the number of construction steps is increased.

このような現状に対し、軸組架構の施工工程では、所定の耐震及び耐風強度を確保しつつも施工時間を短縮することが求められており、確実かつ迅速な火打ちの取付作業が課題となっている。   In response to the current situation, in the construction process of the frame frame structure, it is required to shorten the construction time while ensuring the predetermined earthquake resistance and wind resistance strength, and reliable and quick mounting work is an issue. ing.

本発明は以上のような事情にかんがみてなされたものであり、土台、床梁、小屋梁、軒桁等の構造材によって狭いスパンで形成された水平構面においても、確実かつ迅速に取り付けて施工時間を短縮することができ、所定の耐震及び耐風強度を確保することのできる火打ちを提供し、またかかる火打ちによって強固な床組構造の実現に寄与することを目的としている。   The present invention has been made in view of the above circumstances, and can be reliably and quickly mounted even on a horizontal construction surface formed with a narrow span by a structural material such as a base, a floor beam, a shed beam, and an eaves girder. An object of the present invention is to provide a fire stake that can shorten the construction time and ensure a predetermined earthquake resistance and wind proof strength, and to contribute to the realization of a strong floor structure by such a fire stake.

前記の課題を解決するために、本願発明は第１の構造材に対して第２、第３の構造材が同方向に直交接合された略コ字形の構面を補強するための火打ちであって、一定長さの中空の丸棒体の両端にボルト状の軸部を延設して形成された２本の火打ち本体と、各火打ち本体の一端を第２又は第３の構造材にそれぞれ掛止固定する第１固定具と、２本の火打ち本体の他端をともに掛止して第１の構造材に固定する第２固定具とを備え、前記火打ち本体の軸部には、あらかじめ２組のナットと平座金とが平座金同士の間に間隔を設けて対面した状態で螺合されており、第２固定具は、第１の構造材の内側面に当接して固定される取付面と、この取付面の両端縁からそれぞれ内方向に４５°の角度をなすように延設されて２本の火打ち本体の軸部をそれぞれ保持する二面の保持面とを備えて形成され、前記取付面は略中央にボルト穴を備えるとともに、複数のビス穴が均等配置され、前記保持面は当該保持面の端部に開口されて火打ち本体の軸部を挿入して保持しうる長溝状の掛止部が設けられるとともに、内側に屈曲させたリップ部が端部に設けられており、第２及び第３の構造材にそれぞれ固定される第１固定具に火打ち本体の一端が掛止されるとともに、第１の構造材の長さ方向中央部にボルト穴を介してボルト固定される第２固定具を共有して前記２本の火打ち本体の他端が各保持面の掛止部にそれぞれ挿入掛止され、第１固定具および第２固定具の各保持面の表裏両面からナット締結されることで２本の火打ち本体と第１固定具および第２固定具とが緊結されて、２本の火打ち本体が略Ｖ字状に連結されることを特徴としている。 In order to solve the above problems, the present invention is a fire for reinforcing a substantially U-shaped structure in which the second and third structural members are orthogonally bonded in the same direction to the first structural member. And two fire-fired main bodies formed by extending bolt-shaped shafts at both ends of a hollow rod having a predetermined length, and one end of each fire-fired main body as the second or third structural member, respectively. a first fastener for engaging a fixed, and a second fastener for fixing the other end of the two angle brace body together first structural member by hooking, the shaft of the angle brace body in advance Two sets of nuts and plain washers are screwed together in a state of facing each other with a space between the plain washers, and the second fixture is fixed in contact with the inner surface of the first structural member. The mounting surface and the shaft portions of the two fire-fired main bodies are extended from the both end edges of the mounting surface so as to form an angle of 45 ° inward. The mounting surface is provided with a bolt hole substantially at the center, and a plurality of screw holes are evenly arranged, and the holding surface opens at an end of the holding surface. In addition, a long groove-like latching portion that can be inserted and held by the shaft portion of the fire-burning main body is provided, and a lip portion bent inward is provided at the end portion, and the second and third structural materials One end of the fire-fired main body is hooked to each of the first fixtures to be fixed, and the second fixture that is bolted to the first structural member in the longitudinal direction through the bolt hole is shared. The other ends of the two fire-fired main bodies are inserted and latched in the retaining portions of the respective holding surfaces, and are fastened with nuts from both the front and back surfaces of the respective holding surfaces of the first fixture and the second fixture. The main body and the first fixing tool and the second fixing tool are tightly coupled to each other, and two fire-fighting main bodies Are connected in a substantially V shape.

この発明によれば、２本の火打ち本体を一つの固定具を共有させて略コ字形の構面の隅部にＶ字状に架設することができ、部品点数を減らすことができるとともに施工工数も低減でき、狭いスパンで形成された水平構面においても複数本の火打ちを配置して所定の強度を確保することが可能となる。   According to the present invention, two hot-fired main bodies can be installed in a V shape at the corners of the substantially U-shaped construction surface by sharing one fixing tool, and the number of parts can be reduced and the number of construction steps can be reduced. It is also possible to secure a predetermined strength by arranging a plurality of fires even on a horizontal surface formed with a narrow span.

また本発明は、前記の構成を有する火打ちにおいて、前記第１固定具は、第２又は第３の構造材の内側面にそれぞれ当接して固定される取付面と、この取付面に対して４５°の角度をなすように延設された保持面を備え、これらの取付面と保持面の側縁部が外面板で両側から挟まれて結合した略箱形状に形成され、前記取付面はビス穴及びボルト穴を備えるとともに、前記構造材の内側面に食い込む爪部が端部に設けられ、前記保持面は当該保持面の端部に開口されて火打ち本体の軸部を挿入して保持しうる長溝状の掛止部が設けられるとともに、端部が内側に屈曲されて、ナット締結された火打ち本体の軸部を抜け止めするリップ部が設けられており、第２及び第３の構造材の内側面にそれぞれ第１固定具を位置決めして爪部を食い込ませ、第１固定具の取付面がボルト穴を介して前記各構造材にボルト固定されることを特徴としている。各固定具の保持面には、火打ち本体の軸部が挿入されて保持面の表裏両面からナット締結することで火打ち本体と固定具とを緊結する掛止部が設けられ、各保持面で互いに同一の高さ位置となるように設けられている。 Further, according to the present invention, in the firing having the above-described configuration, the first fixture is attached to an inner surface of the second or third structural member and fixed to each other, and 45 to the attachment surface. A holding surface extending so as to form an angle of °, and the mounting surface and the side edges of the holding surface are formed in a substantially box shape that is sandwiched and joined from both sides by an outer surface plate. A claw portion that includes a hole and a bolt hole and is provided at an end portion that bites into the inner surface of the structural material, and the holding surface is opened at the end portion of the holding surface to insert and hold the shaft portion of the fire-fitting body. A long groove-shaped latching portion, an end portion is bent inward, and a lip portion is provided to prevent the shaft portion of the fire-fighting main body, which is fastened with a nut, from being provided. Position the first fixing tool on the inner surface of each and bite the claw The mounting surface of the first fastener is characterized in that it is bolted to the respective structural member through the bolt holes. The holding surface of each fixing tool is provided with a hook portion for inserting the shaft portion of the fire-fighting main body and fastening the nut from both the front and back surfaces of the holding surface to tightly connect the fire-fitting main body and the fixing tool. It is provided so that it may become the same height position.

これによれば、火打ち本体の取付作業は、軸部を掛止部に挿入してナット締結するだけでよいので、作業工数は減少し、正確かつ迅速に施工することが可能となる。また、ナットの締結位置によって火打ち本体の実質的な長さを微調整することもできる。したがって、施工現場における墨付け精度に左右されることなく、火打ちを取り付けることができる。   According to this, the mounting operation of the fire-fighting main body only needs to insert the shaft portion into the latching portion and fasten with the nut, so that the number of work steps can be reduced and the work can be performed accurately and quickly. Further, the substantial length of the fire-burning body can be finely adjusted according to the fastening position of the nut. Therefore, it is possible to attach a fire without depending on the marking accuracy at the construction site.

また、本発明の火打ちにおいて、固定具は、取付面にビス穴及びボルト穴を備え、ビス及びボルトにより構造材に取り付け可能とされたことを特徴とする。これによれば、火打ち本体の軸部と別体の固定具を、工場などであらかじめ構造材の所定位置に取り付けておくことができ、施工現場での作業をより簡単にすることができる。   In addition, in the firing of the present invention, the fixture is provided with a screw hole and a bolt hole on the mounting surface, and can be attached to the structural material with the screw and the bolt. According to this, the fixing tool separate from the shaft portion of the fire-burning main body can be attached in advance at a predetermined position of the structural material at a factory or the like, and the work at the construction site can be further simplified.

さらに、本発明は、固定具の保持面の端部に、ナット締結された軸部を抜け止めするリップ部を有することを特徴としている。これにより、ナット締結された軸部が、掛止部から抜け落ちることを防止できる。   Furthermore, the present invention is characterized in that a lip portion for preventing a shaft portion fastened with a nut from coming off is provided at an end portion of the holding surface of the fixture. Thereby, the shaft part fastened with the nut can be prevented from falling off from the latching part.

発明に係る火打ちは、火打ち本体と固定具とが別体で形成され、保持面を二面有する固定具が、略コ字形の構面の第１の構造材の長さ方向中央部に取り付けられ、この固定具を共有して２本の火打ち本体の一端が連結されるので、狭いスパンで形成された水平構面においても、火打ちを構造材の両隅部に架設して略Ｖ字状に配置することができ、所定の強度を確保することが可能となる。また、２本の火打ち本体は、この保持面を二面有する固定具を共有しているので部品点数が減少し、施工工数も低減することができる。   In the firing according to the invention, the firing body and the fixture are formed separately, and the fixture having two holding surfaces is attached to the central portion in the longitudinal direction of the first structural member having the substantially U-shaped construction surface. Since one end of the two fire-fired main bodies are connected by sharing this fixture, the fire-fire is constructed at both corners of the structural material even in a horizontal construction surface formed with a narrow span so as to be substantially V-shaped. It can arrange | position and it becomes possible to ensure predetermined intensity | strength. In addition, since the two hot-fired main bodies share a fixture having two holding surfaces, the number of parts can be reduced and the number of construction steps can be reduced.

また、固定具には火打ち本体の軸部を挿入させる掛止部が設けられているので、この掛止部に火打ち本体の軸部を挿入するとともに、保持面の表裏両面からナット締結することで、火打ち本体と固定具との連結が完了する。したがって、火打ち本体の軸部におけるナット締結の位置によって、火打ち本体の実質的な長さを微調整することができる。この結果、施工現場における墨付け精度に左右されることなく、火打ちを構造材に取り付けることが可能となる。また、火打ち本体の取付作業は、軸部を掛止部に挿入してナット締結するだけでよいので、作業工数は減少し、正確かつ迅速に施工することができる。   In addition, since the fixing part is provided with a hooking part for inserting the shaft part of the fire-fitting main body, the shaft part of the fire-fitting main body is inserted into this hooking part, and the nut is fastened from both the front and back sides of the holding surface. Then, the connection between the main body and the fixture is completed. Therefore, the substantial length of the flame-fired main body can be finely adjusted by the position of the nut fastening in the shaft portion of the flame-fired main body. As a result, it is possible to attach the fire to the structural material without being affected by the marking accuracy at the construction site. In addition, since the mounting operation of the fire-fighting main body only needs to be inserted into the retaining portion and fastened with the nut, the work man-hours can be reduced and the work can be performed accurately and quickly.

以下、本発明に係る火打ちの実施の形態について、図面を参照しつつ説明する。   DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the firing according to the present invention will be described with reference to the drawings.

図１〜図３は本発明に係る火打ちの一実施例を示し、図１は火打ちの全体構成を示す上面図、図２は火打ちの第２固定具を示す上面図、図３は火打ち本体の部分断面図である。   1 to 3 show an embodiment of the fire-fitting according to the present invention, FIG. 1 is a top view showing the overall structure of the fire-fitting, FIG. 2 is a top view showing a second fixture for fire-fitting, and FIG. It is a fragmentary sectional view.

本発明の火打ち１は、第１の構造材５１に対して第２、第３の構造材５２，５３が同方向に直交接合された略コ字形の水平構面を補強するために、各構造材５１〜５３に対して約４５°の角度で水平構面と平行に配置されるものである。   In order to reinforce the substantially U-shaped horizontal construction surface in which the second and third structural members 52 and 53 are orthogonally joined to the first structural member 51 in the same direction, It is arranged in parallel to the horizontal surface at an angle of about 45 ° with respect to the materials 51-53.

火打ち１は、一定長さの２本の火打ち本体２と、これらの火打ち本体２の端部に取り付けられる固定具３とを備えた構成とされている。   The fire-fired 1 is configured to include two fire-fired main bodies 2 having a predetermined length and a fixture 3 attached to the ends of these fire-fired main bodies 2.

火打ち本体２は、図３に示すように、構造用圧延鋼材等により形成された中空の丸棒体により形成されている。そして、この火打ち本体２の両端には、ボルト状の軸部２１が設けられている。軸部２１は、火打ち本体２の両端に溶接されて、その軸芯上に延設されている。   As shown in FIG. 3, the hot-fired main body 2 is formed of a hollow round bar formed of a structural rolled steel material or the like. And the bolt-shaped axial part 21 is provided in the both ends of this burning body 2. The shaft portion 21 is welded to both ends of the flame-fired main body 2 and extends on the shaft core.

固定具３は、火打ち本体２と同様、構造用圧延鋼材等により形成されている。固定具３には、構造材５１〜５３の内側面に当接して固定される取付面３１と、火打ち本体２の軸部２１を保持する保持面３２とが設けられている。例示の形態では、固定具３には、保持面を一面有する第１固定具３ａと、保持面を二面有する第２固定具３ｂとがあり、いずれも保持面３２が取付面３１に対して４５°の角度をなすように設けられている。   The fixing tool 3 is formed of a structural rolled steel material or the like, like the fired main body 2. The fixture 3 is provided with a mounting surface 31 that is fixed in contact with the inner surfaces of the structural members 51 to 53, and a holding surface 32 that holds the shaft portion 21 of the fire-fired main body 2. In the illustrated embodiment, the fixture 3 includes a first fixture 3 a having one holding surface and a second fixture 3 b having two holding surfaces, both of which have a holding surface 32 with respect to the mounting surface 31. It is provided to form an angle of 45 °.

このうち、第２固定具３ｂは、保持面３２が取付面３１の両端縁からそれぞれ内方向に延設されている。各保持面３２には、火打ち本体２の軸部２１を挿入させる掛止部３２１が設けられている。掛止部３２１は、保持面３２の一部を切り欠いて端部に開口する長溝状に形成されている。この保持面３２の端部には、内側に屈曲したリップ部３２２が形成されている。   Among these, as for the 2nd fixing tool 3b, the holding surface 32 is each extended inward from the both-ends edge of the attachment surface 31. As shown in FIG. Each holding surface 32 is provided with a latching portion 321 for inserting the shaft portion 21 of the fire-burning main body 2. The latching portion 321 is formed in a long groove shape that is cut out at a part of the holding surface 32 and opens at an end portion. A lip portion 322 bent inward is formed at the end of the holding surface 32.

また、この第２固定具３ｂの取付面３１には、ビス穴及びボルト穴が設けられている。ビス穴は、取付面３１の２箇所に均等に配置されて、ボルト穴３１２が取付面３１の略中央に設けられている。そして、第２固定具３ｂは、この取付面３１を介して第１の構造材５１の長さ方向中央部に取り付けられる。   The mounting surface 31 of the second fixture 3b is provided with a screw hole and a bolt hole. The screw holes are evenly arranged at two places on the mounting surface 31, and the bolt hole 312 is provided at the approximate center of the mounting surface 31. And the 2nd fixing tool 3b is attached to the longitudinal direction center part of the 1st structural material 51 via this attachment surface 31. As shown in FIG.

一方、第１固定具３ａは、取付面３１及び保持面３２の側縁部を外面板３３で両側から挟み込むように結合して略箱形状に形成されている。第２固定具３ｂと同様に、保持面３２には火打ち本体２の軸部２１を挿入させる掛止部３２１が設けられ、端部にはリップ部３２２が形成されている。第１固定具３ａの取付面３１には、ビス穴及びボルト穴が設けられているほか、端部には構造材５２，５３の内側面に食い込む爪部３１３が備えられている。   On the other hand, the 1st fixing tool 3a is formed so that the side edge part of the attachment surface 31 and the holding surface 32 may be pinched | interposed from both sides with the outer surface board 33, and is formed in the substantially box shape. Similar to the second fixture 3b, the holding surface 32 is provided with a hooking portion 321 for inserting the shaft portion 21 of the fire-burning main body 2, and a lip portion 322 is formed at the end portion. A screw hole and a bolt hole are provided on the mounting surface 31 of the first fixture 3a, and a claw portion 313 that bites into the inner surface of the structural members 52 and 53 is provided at the end.

このように構成される火打ち本体２と固定具３ａ，３ｂとは、構造材５１〜５３に対して次のように施工して、火打ち１を架設することが好ましい。   It is preferable that the fire-fired main body 2 and the fixtures 3a and 3b constructed as described above are constructed on the structural members 51 to 53 as follows, and the fire-fired body 1 is installed.

まず、第１の構造材５１の内側面の長さ方向中央部に第２固定具３ｂを位置決めして、構造材５１に形成しておいたボルト挿通孔にボルト３５を挿通して、取付面３１を緊結する。同様に、第２、第３の構造材５２，５３の内側面の所定位置に固定具３ａをそれぞれ位置決めし、爪部３１３を構造材５２，５３の内側面に食い込ませつつ、ボルト３５により取付面３１と構造材５２，５３を緊結する。   First, the second fixing tool 3b is positioned at the center in the length direction of the inner surface of the first structural member 51, the bolt 35 is inserted into the bolt insertion hole formed in the structural member 51, and the mounting surface Tight 31. Similarly, the fixing tool 3a is positioned at predetermined positions on the inner side surfaces of the second and third structural members 52 and 53, and the claws 313 are attached to the inner side surfaces of the structural members 52 and 53 with the bolts 35. The surface 31 and the structural members 52 and 53 are fastened.

続いて、取付面３１を緊結したボルト３５の側部において、ビス３４を用いて各固定具３ａ，３ｂをビス止めし、構造材５１に固定する。これにより、構造材５１〜５３への固定具３ａ，３ｂの取付作業が完了する。ここで、固定具３と火打ち本体２とは別体で構成されているので、かかる固定具３の取付作業を施工現場で直接行うだけでなく、あらかじめ工場等で行うこともできる。   Subsequently, at the side of the bolt 35 to which the mounting surface 31 is fastened, the fixing tools 3 a and 3 b are screwed using screws 34 and fixed to the structural member 51. Thereby, the attachment operation | work of the fixing tools 3a and 3b to the structural materials 51-53 is completed. Here, since the fixing tool 3 and the fire-fighting body 2 are configured separately, the fixing work of the fixing tool 3 can be performed not only directly at the construction site but also in advance at a factory or the like.

つぎに、各固定具３ａ、３ｂに火打ち本体２を連結していく。火打ち本体２の両端の軸部２１には、図３に示すように、あらかじめ２組の六角ナット２２と平座金２３とを対面した状態で螺合させておく。   Next, the main body 2 is connected to the fixtures 3a and 3b. As shown in FIG. 3, two sets of hexagon nuts 22 and plain washers 23 are screwed into the shaft portions 21 at both ends of the flame-fired main body 2 in advance.

このとき、平座金２３間に適当な間隔をおいて設置しておくことが好ましい。具体的には、各平座金２３の相互間には、固定具３の保持面３２の厚さ分に加えてリップ部３２２の突出長さ分程度の間隔があればよい。そして、このように用意された両端の軸部２１を、各構造材５１〜５３に固定されている固定具３ａ，３ｂの各掛止部３２１に水平方向にそれぞれ挿入する。   At this time, it is preferable that the plain washer 23 be installed with an appropriate interval. Specifically, there may be an interval between the flat washers 23 as much as the protrusion length of the lip 322 in addition to the thickness of the holding surface 32 of the fixture 3. And the axial part 21 of the both ends prepared in this way is each inserted in the horizontal direction to each latching part 321 of the fixing tools 3a and 3b currently fixed to each structural material 51-53.

続いて、軸部２１に螺合させた六角ナット２２をそれぞれ締めて、固定具３の保持面３２の表裏両側から締結する。保持面３２にはリップ部３２２が設けられているので、ナット締結された軸部２１は掛止部３２１から抜け落ちることはない。   Subsequently, the hexagon nuts 22 screwed into the shaft portion 21 are respectively tightened and fastened from both the front and back sides of the holding surface 32 of the fixture 3. Since the holding surface 32 is provided with the lip portion 322, the shaft portion 21 that is nut-fastened does not fall out of the hook portion 321.

ここで、火打ち本体２の軸部２１に螺合させた六角ナット２２の位置を調整することによって、火打ち本体２の実質的な長さを微調整することが可能になる。また、固定具３の掛止部３２１において、軸部２１の締結位置を前後に調整することで、火打ち本体２の水平方向の取付位置も微調整することができる。したがって、火打ち１の取付位置の墨付け精度が多少悪い場合でも、かかる調整によって火打ち本体２を確実に取り付けることができ、十分な強度が発現される。また、構造材５３の表裏両面に火打ち１を取り付ける場合には、一つの構造材５３の両側面に固定具３ａをそれぞれ取り付て、１本のボルト３５でこれらの固定具３ａ同士を緊結することもできる。   Here, by adjusting the position of the hexagon nut 22 screwed into the shaft portion 21 of the flame-fired main body 2, the substantial length of the flame-fired main body 2 can be finely adjusted. Moreover, in the latching | locking part 321 of the fixing tool 3, the attachment position of the horizontal direction of the flame-fired main body 2 can also be finely adjusted by adjusting the fastening position of the axial part 21 back and forth. Therefore, even when the marking accuracy of the mounting position of the fire-fired 1 is somewhat poor, the fire-fired main body 2 can be reliably attached by this adjustment, and sufficient strength is expressed. In addition, when attaching the fire hitting 1 to both the front and back surfaces of the structural material 53, the fixtures 3 a are respectively attached to both side surfaces of the single structural material 53, and these fixtures 3 a are fastened together with a single bolt 35. You can also

以上の作業により、２本の火打ち本体２が第１固定具３ａおよび第２固定具３ｂに連結され、火打ち１の施工が完了する。これにより、各火打ち本体２の一端は、一つの第２固定具３ｂを共有して略Ｖ字状に連結されて、第１の構造材５１の両端隅部に火打ち１を架設することができる。   With the above operation, the two firework main bodies 2 are connected to the first fixture 3a and the second fixture 3b, and the construction of the firework 1 is completed. As a result, one end of each fire-fired main body 2 is connected in a substantially V shape while sharing one second fixing tool 3 b, and the fire-fired 1 can be installed at both end corners of the first structural member 51. .

本発明に係る火打ちの全体構成を示す上面図である。It is a top view which shows the whole structure of the burning according to the present invention. 本発明に係る火打ちにおける第２固定具を示す部分断面図である。It is a fragmentary sectional view which shows the 2nd fixing tool in the burning according to the present invention. 本発明に係る火打ちの火打ち本体の部分断面図である。FIG. 3 is a partial cross-sectional view of a fire-ignition body according to the present invention.

符号の説明Explanation of symbols

１ 火打ち
２ 火打ち本体
２１ 軸部
３ 固定具
３ａ 第１固定具
３ｂ 第２固定具
３１ 取付面
３２ 保持面
３２１ 掛止部
３２２ リップ部
５１ 第１の構造材
５２ 第２の構造材
５３ 第３の構造材 DESCRIPTION OF SYMBOLS 1 Burning 2 Burning main body 21 Shaft part 3 Fixing tool 3a 1st fixing tool 3b 2nd fixing tool 31 Mounting surface 32 Holding surface 321 Latching part 322 Lip part 51 1st structural material 52 2nd structural material 53 3rd Structural material

Claims (2)

第１の構造材に対して第２、第３の構造材が同方向に直交接合された略コ字形の構面を補強するための火打ちであって、一定長さの中空の丸棒体の両端にボルト状の軸部を延設して形成された２本の火打ち本体と、各火打ち本体の一端を第２又は第３の構造材にそれぞれ掛止固定する第１固定具と、２本の火打ち本体の他端をともに掛止して第１の構造材に固定する第２固定具とを備え、
前記火打ち本体の軸部には、あらかじめ２組のナットと平座金とが平座金同士の間に間隔を設けて対面した状態で螺合されており、
第２固定具は、第１の構造材の内側面に当接して固定される取付面と、この取付面の両端縁からそれぞれ内方向に４５°の角度をなすように延設されて２本の火打ち本体の軸部をそれぞれ保持する二面の保持面とを備えて形成され、
前記取付面は略中央にボルト穴を備えるとともに、複数のビス穴が均等配置され、前記保持面は当該保持面の端部に開口されて火打ち本体の軸部を挿入して保持しうる長溝状の掛止部が設けられるとともに、内側に屈曲させたリップ部が端部に設けられており、
第２及び第３の構造材にそれぞれ固定される第１固定具に火打ち本体の一端が掛止されるとともに、第１の構造材の長さ方向中央部にボルト穴を介してボルト固定される第２固定具を共有して前記２本の火打ち本体の他端が各保持面の掛止部にそれぞれ挿入掛止され、第１固定具および第２固定具の各保持面の表裏両面からナット締結されることで２本の火打ち本体と第１固定具および第２固定具とが緊結されて、２本の火打ち本体が略Ｖ字状に連結されることを特徴とする火打ち。 It is a fire for reinforcing the substantially U-shaped construction surface in which the second and third structural materials are orthogonally joined in the same direction with respect to the first structural material, and is a hollow round bar having a certain length. Two fired main bodies formed by extending bolt-shaped shaft portions at both ends, a first fixing tool for fixing one end of each fire-fired main body to the second or third structural member, and two And a second fixture for securing the other end of the fire-fired body together to the first structural member ,
Two sets of nuts and plain washers are screwed together in advance in a state where they face each other with a gap between the plain washers, to the shaft portion of the flame-fired main body,
The second fixing tool includes two mounting surfaces that are fixed in contact with the inner surface of the first structural member, and two ends extending from each end edge of the mounting surface so as to form an angle of 45 ° inward. Formed with two holding surfaces that respectively hold the shaft portion of the firing body of
The mounting surface is provided with a bolt hole substantially in the center, and a plurality of screw holes are equally arranged, and the holding surface is opened at the end of the holding surface and can be inserted and held by the shaft portion of the fired main body. And a lip part bent inward is provided at the end part.
One end of the fire-fighting body is hooked to the first fixture that is fixed to the second and third structural members, respectively, and is bolted to the central portion in the longitudinal direction of the first structural member via a bolt hole. Sharing the second fixture, the other ends of the two fired main bodies are inserted and latched into the latch portions of the respective holding surfaces, and nuts are formed from both the front and back surfaces of the respective holding surfaces of the first fixture and the second fixture. The two fire-fired main bodies, the first fixture and the second fixture are fastened by being fastened, and the two fire-fired main bodies are connected in a substantially V shape . 前記第１固定具は、第２又は第３の構造材の内側面にそれぞれ当接して固定される取付面と、この取付面に対して４５°の角度をなすように延設された保持面を備え、これらの取付面と保持面の側縁部が外面板で両側から挟まれて結合した略箱形状に形成され、
前記取付面はビス穴及びボルト穴を備えるとともに、前記構造材の内側面に食い込む爪部が端部に設けられ、前記保持面は当該保持面の端部に開口されて火打ち本体の軸部を挿入して保持しうる長溝状の掛止部が設けられるとともに、端部が内側に屈曲されて、ナット締結された火打ち本体の軸部を抜け止めするリップ部が設けられており、
第２及び第３の構造材の内側面にそれぞれ第１固定具を位置決めして爪部を食い込ませ、第１固定具の取付面がボルト穴を介して前記各構造材にボルト固定されることを特徴とする請求項１に記載の火打ち。 The first fixture includes a mounting surface that is fixed in contact with the inner surface of the second or third structural member, and a holding surface that extends at an angle of 45 ° to the mounting surface. The side edges of the mounting surface and the holding surface are formed in a substantially box shape that is sandwiched and joined from both sides by an outer surface plate ,
The mounting surface includes a screw hole and a bolt hole, and a claw portion that bites into the inner surface of the structural material is provided at an end portion, and the holding surface is opened at an end portion of the holding surface so that the shaft portion of the fired main body is formed. A long groove-shaped latching portion that can be inserted and held is provided, and an end portion is bent inward, and a lip portion that prevents a shaft portion of a fire-bonded main body that is fastened with a nut is provided,
The first fixture is positioned on the inner surface of each of the second and third structural members to bite the claw portion, and the mounting surface of the first fixture is bolted to each structural member via a bolt hole. The fire strike according to claim 1.

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