JP3463285B2 - Anti-vibration bracket for wooden frame structural reinforcement, and wooden frame structure using the same - Google Patents

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の目的】この発明は、我が国固有の木造軸組構
造、特に２階建て、３階建てといった多層階木造軸組構
造における柱の引っ張り耐力を増強するために採用する
補強材に係わるそれ用の振れ止め金具と、それを使用し
た木造軸組構造とに関するものであり、木造軸組構造の
柱に対する補強材の組み合わせ構造を改良する新規な振
れ止め金具と、その金具を使用した木造軸組構造とを提
供しようとするものである。OBJECT OF THE INVENTION The present invention relates to a reinforcing material used to enhance the tensile strength of columns in a wooden frame structure unique to Japan, particularly in a multi-story wooden frame structure such as a two-story or three-story structure. The present invention relates to a steady rest and a wooden frame structure using the same, and a new steady rest for improving the combination structure of a reinforcing material for a column of the wooden framework structure, and a wooden framework using the bracket. It is intended to provide structure and.

【０００２】[0002]

【従来技術】建築基準法の改正によって３階建て木造軸
組建造物が普通に建築可能となる等、それまでの木造軸
組構造に対する構造上の規制が大巾に緩和されることと
なった。その結果、木造軸組構造にも様々な可能性が生
まれ、今後一層の展開、普及が期待されている。このよ
うな流れを受け、既に本願出願人においては、特願平３
−８６２６５号発明に代表される、横架材とその上方適
当間隔の作業空間を確保して補助横架材を並置するよう
にした全く新たな木造軸組構造を完成し、従前までの木
造軸組構造では対応しきれなかった部材の規格化や切り
出し加工の簡略化、ひいては仕口部の構造強度の増強化
までを可能とすることにより、改正された建築基準法に
則って、より堅牢で且つ経済的な木造建築物を提供する
ことに成功した後、それら既に開発済みの技術的思想を
更に発展させる狙いで、木造軸組構造で最も弱点となっ
ている柱部材の浮き上がり現象の防止（柱の引っ張り耐
力の付与、増強）に有効な、特願平４−１３５８６９号
発明に代表される木造軸組構造を開発、完成させた。2. Description of the Related Art The revision of the Building Standards Law has made it possible to construct a three-story wooden frame structure normally, and the structural restrictions on the wooden frame structure up to that time have been greatly relaxed. . As a result, there are various possibilities for the wooden frame structure, and further expansion and spread are expected in the future. In response to such a flow, the applicant of the present application has already filed Japanese Patent Application No.
-86265 The invention has completed a completely new wooden frame structure in which a horizontal crossing material and an auxiliary horizontal crossing material are juxtaposed by securing a working space above the horizontal crossing material. By making it possible to standardize members that could not be dealt with in the assembled structure, simplify cutting process, and even strengthen the structural strength of the joint part, it is more robust according to the revised Building Standards Law. And after succeeding in providing an economical wooden building, with the aim of further developing the already developed technical ideas, prevention of the lifting phenomenon of the pillar member, which is the weakest point in the wooden frame structure ( We have developed and completed a wooden frame structure represented by the invention of Japanese Patent Application No. 4-135869, which is effective for imparting and increasing the tensile strength of a column.

【０００３】この特願平４−１３５８６９号発明の木造
軸組構造では、それまで、法律で使用が義務付けられて
きた通し柱をそのまま採用する構造や、今般の法改正で
緩和された、横架材を挾んで上下に配された柱の根元、
横架材、柱頭の三者を短冊状の平鋼板でボルト締めして
連結するようにした構造に頼らず、独自に開発した横架
材の上下に分断されて配された柱を、基礎上から最上位
の横架材上端まで実質的に１本の補強材で連結一体化し
てしまう新規な木造軸組構造を提案するものであった。
この発明は、上記発明の木造軸組構造を実施化する過程
で見出された新たな知見に基づく補強材と柱との係わり
に関する金具と、その金具を使用した木造軸組構造であ
って、以下にその詳細を説示するものである。In the wooden frame structure of the invention of Japanese Patent Application No. 4-135869, a structure in which through columns, which have been obliged to use by law up to that point, is adopted as it is, and a horizontal member which has been relaxed by the recent revision of the law. At the base of the pillars arranged above and below,
Instead of relying on the structure in which the horizontal member and the stigma are connected by bolting them with strip-shaped flat steel plates, the pillars that are divided into upper and lower parts of the independently developed horizontal member are placed on the foundation. It was to propose a new wooden frame structure in which from one end to the upper end of the uppermost horizontal member is connected and integrated by substantially one reinforcing member.
The present invention is a metal fitting relating to the relationship between a reinforcing member and a pillar based on the new finding found in the process of implementing the above-mentioned wooden construction structure, and a wooden construction structure using the fitting, The details will be given below.

【０００４】[0004]

【発明の構成】図面に示されている代表的な実施例から
も明確に理解されるように、この発明の木造軸組構補強
材用振れ止め金具は、基本的に次のような構成から成る
ものである。即ち、木造軸組構造における土台、梁、桁
等横架材あるいは補助横架材を含む横架材を貫通し、且
つ横架材あるいは補助横架材を含む横架材間に立設され
る柱に対しては、各柱断面内に食込み状に設けた縦溝に
嵌合するか、もしくは各柱軸芯を貫通する小孔に挿通さ
れて各横架材と各柱とを上下に一体化してしまう補強材
を、略密着状に一定方向から挿通可能とする中空部を有
し、該中空部から外側所定位置には、柱に形成された縦
溝もしくは小孔の内壁に当接する嵌着部を有し、それら
中空部から嵌着部までの間を弾性素材からなる吸振部に
形成してなる木造軸組構造補強材用振れ止め金具とする
ものである。As can be clearly understood from the typical embodiment shown in the drawings, the steady rest metal fitting for a wooden frame structure reinforcing material of the present invention basically has the following construction. It consists of That is, the foundation, beams, girders, etc. in the wooden frame structure penetrate through the horizontal members including the horizontal members or the auxiliary horizontal members, and are erected between the horizontal members or the horizontal members including the auxiliary horizontal members. For columns, either fit into vertical grooves provided in the cross section of each column, or insert into small holes that penetrate the axis of each column so that each horizontal member and each column are integrated vertically. The reinforcing member that has become solid has a hollow portion through which it can be inserted in a fixed direction from a certain direction, and at a predetermined position outside the hollow portion, a fitting that abuts an inner wall of a vertical groove or a small hole formed in a pillar. A steady rest metal fitting for a wooden frame structure reinforcing member having a fitting portion, and a vibration absorbing portion made of an elastic material is formed between the hollow portion and the fitting portion.

【０００５】金具の中空部は、後述の補強材に対し、略
密着状に一定方向から挿通可能とする部分であって、補
強材材径よりやや小さくした間隙部分、即ちそれは周囲
が全て閉じられた、所謂通孔であってもよく、あるいは
幾つかの小片相互で囲まれた部分、あるいはまた一つの
小片と他の部材、即ち下記する嵌着部との間に形成され
る間隙部分等によって形成され、補強材所定箇所の外周
全体あるいは外周に部分的に当接し、補強材の動き、即
ち補強材の振れを後述の吸振部に直接伝達する機能を果
たすものである。The hollow portion of the metal fitting is a portion that can be inserted into a reinforcing material, which will be described later, in a substantially close contact manner from a certain direction, and is a gap portion slightly smaller than the diameter of the reinforcing material, that is, the entire periphery is closed. Also, it may be a so-called through hole, or a portion surrounded by several small pieces, or by a gap portion formed between one small piece and another member, that is, a fitting portion described below. The reinforcing material is formed and abuts on the entire outer circumference or a part of the outer circumference of the predetermined portion of the reinforcing material, and has a function of directly transmitting the movement of the reinforcing material, that is, the vibration of the reinforcing material to the vibration absorbing portion described later.

【０００６】同嵌着部は、上記中空部の外側に位置させ
て形成される部分であって、柱に形成された縦溝もしく
は小孔の内壁に当接することにより、同所に仮着状に固
定されると共に、上記した中空部を実現する部材を受支
する機能を果たすこととなる。同吸振部は、上記中空部
と嵌着部との間、即ち中空部を実現する部材によって形
成されるものであり、ゴム板やプラスチックス製発泡
体、あるいは鋼板製弾性板等の採用が可能であり、上記
のとおり、中空部を構成する側と反対側が、嵌着部に一
体成形あるいは接着、熔着等の手段で一体化され、嵌着
部に受支された構造となり、中空部に嵌合した補強材の
振れを吸収し、補強材が、柱に形成された縦溝もしくは
小孔の内壁に直接接触して不快音を発生させることがな
いよう機能するものである。The fitting portion is a portion formed on the outside of the hollow portion, and abutting on the inner wall of the vertical groove or the small hole formed in the column, the fitting portion is temporarily attached to the hollow portion. It also serves to receive and support the member that realizes the above-mentioned hollow portion. The vibration absorbing part is formed between the hollow part and the fitting part, that is, a member that realizes the hollow part, and a rubber plate, a plastic foam, or a steel plate elastic plate can be adopted. As described above, the side opposite to the side forming the hollow portion is integrated with the fitting portion by means such as integral molding, adhesion, or welding, and has a structure supported by the fitting portion, and The function of absorbing the vibration of the fitted reinforcing material and preventing the reinforcing material from directly contacting the inner wall of the vertical groove or small hole formed in the pillar and generating unpleasant noise.

【０００７】補強材は、現状において所要引張り強度お
よび経済性、取扱性等の点からして鋼棒が最も相応しい
素材と言えるが、それらの点で十分代替できる性状の素
材が開発されれば、当然それらもこの対象となり得るこ
とは言うまでもない。この補強材は、形成する作業空間
相互間に達する長さの所要強度断面を有するものとし、
両端にはネジ切り加工その他、公知の鋼棒緊結手段に見
合った加工が予め施され、鋼棒相互および鋼棒とアンカ
ーボルトとが、作業空間において簡単に緊結可能となる
ようにする。なお、最も上方にくる鋼棒の上端は、その
位置に配された横架材上面を支持部として固定されなけ
ればならないため、横架材上面への食い込みを防止する
適宜手段、例えば横架材上面に載置する適宜厚さと大き
さとを有する平鋼板（鋼棒上端を挿通する通孔が所定位
置に形成された平鋼板）との組み合わせその他が採用可
能なものに計画されていなければならない。At present, it can be said that the steel rod is the most suitable material for the reinforcing material in view of the required tensile strength, economical efficiency, handleability, etc. However, if a material having properties that can be sufficiently replaced in these points is developed, Of course, it goes without saying that they can also be subject to this. This reinforcing material shall have a required strength cross section of a length that reaches between the working spaces to be formed,
Both ends are preliminarily subjected to threading and other processing corresponding to known steel rod fastening means so that the steel rods and the steel rod and the anchor bolt can be easily fastened in the working space. The upper end of the uppermost steel rod must be fixed with the upper surface of the horizontal member arranged at that position as a supporting portion, so an appropriate means for preventing bite into the upper surface of the horizontal member, such as horizontal member A combination with a flat steel plate (a flat steel plate having a through hole for inserting the upper end of the steel rod formed at a predetermined position) having an appropriate thickness and size to be placed on the upper surface and the like should be planned so that it can be adopted.

【０００８】上記補強材によって上下方向に強化、一体
化される柱および横架材は、２階建、３階建等建造物の
規模や種類等といった各種要因に従って一般的に算出さ
れる部材断面の角材が採用されるものであり、また、そ
れらの仕口構造も、従前から採用されてきている公知の
ものの外、既に本願出願人において開発済みの特願平３
−１１９４８２号発明等に見られるような特殊な仕口構
造の採用も可能である。また、それらの材質も、木材の
無垢材に限定されるものではなく、集成材や合せ材によ
って形成されているものも当然包含される。そして、柱
については、後述する鋼棒との組合せ構造をどのように
するかにより、例えば側面に予め縦溝を形成したものと
したり、あるいは、柱芯に上下に貫通する通孔を穿設し
たものとすることになる。The pillars and horizontal members which are reinforced and integrated in the vertical direction by the above-mentioned reinforcing members are member cross sections which are generally calculated according to various factors such as scale and type of building such as two-story and three-story. In addition to the publicly known ones that have been adopted from the past, Japanese Patent Application No.
It is also possible to employ a special joint structure as found in the invention of No. 119482. Further, the materials thereof are not limited to the solid wood materials, and naturally include materials formed of laminated wood or laminated wood. Then, for the pillar, depending on how the combined structure with a steel rod to be described later is made, for example, a vertical groove may be formed in advance on the side surface, or a through hole penetrating vertically is formed in the pillar core. Will be done.

【０００９】これに対し、補助横架材は、本来の横架
材、即ち土台や梁、桁、胴差し、敷き桁、陸梁等の上
に、介在片を介した分だけの間隔を置いて並置される部
材であり、これらの部材断面は、本来の横架材断面に合
算されて一つの必要横架材断面強度が実現されるように
するものであり、したがって、所定の横架材、例えば梁
であれば、対象となる建造物の梁として構造強度上必要
となる断面を予め設定し、それから採用する補助横架材
断面を差し引いた部材断面が、本来の横架材に相当する
この発明の横架材の部材断面となるようにすればよい。
通常、この補助横架材の部材断面は、建て込む柱断面と
同寸の角材が採用されれば十分である。なお、これら横
架材、補助横架材に取り付く大引きや火打土台、根太掛
け等との仕口構造、および、建て込まれる柱下端との仕
口構造、更には、各横架材相互、補助横架材相互の継ぎ
手構造等については特に限定はなく、従前までの公知の
構造を含め、適宜構造の採用が可能である。On the other hand, the auxiliary horizontal member is provided on the original horizontal member, that is, a base, a beam, a girder, a girder, a floor girder, a land beam, or the like, with an interval corresponding to the intervening piece. The members are arranged side by side, and the cross sections of these members are added to the original cross section of the horizontal cross member so that one required cross cross member strength is realized. For example, in the case of a beam, the cross section required for structural strength as the beam of the target building is set in advance, and the member cross section obtained by subtracting the cross section of the auxiliary horizontal cross member to be adopted corresponds to the original horizontal cross member. It suffices that the horizontal cross-section of the present invention has a member cross section.
Generally, it is sufficient for the member cross section of this auxiliary horizontal member to be a square bar having the same size as the column cross section to be built. In addition, these horizontal members, a joint structure with a large pull or a sill foundation attached to the auxiliary horizontal member, a joist, etc., and a joint structure with the bottom end of the pillar to be built, further, each horizontal member, There is no particular limitation on the joint structure or the like between the auxiliary horizontal members, and an appropriate structure can be adopted, including the conventionally known structure.

【００１０】[0010]

【関連する他の発明】上記したこの発明の木造軸組構造
補強材用振れ止め金具を使用した木造軸組構造は、基本
的に次のような構成を基本としている。即ち、各階柱の
脚部を、土台、梁、桁等横架材に対して介在片を介して
所定間隔上方に浮かせて並置してなる直下の補助横架材
上に接続することにより、各階柱の脚部と土台、梁、桁
等、その直下に位置する横架材との間に作業空間を形成
する一方、この作業空間を接続部とし得る長さに形成さ
れた鋼棒製補強材を、各柱断面内に食込み状に設けら
れ、要所要所に振れ止め金具の配された縦溝、もしくは
各柱軸芯を貫通し、要所要所に振れ止め金具の配された
小孔の、各振れ止め金具に嵌合もしくは挿通させて縦設
し、それら鋼棒相互間、および鋼棒と基礎から立ち上げ
たアンカーボルト間を、夫々の位置する作業空間におい
て適宜手段で緊結、一体化することにより、分断されて
上下に配されている柱に引っ張り耐力を付与してなる木
造軸組構造とするものである。Other Related Invention A wooden frame structure using the above-described steady rest metal fitting for the wooden frame structure of the present invention is basically based on the following constitution. That is, by connecting the legs of each floor pillar to an auxiliary horizontal bridge material that is directly below and is placed side by side with respect to a horizontal bridge material such as a base, a beam, and a girder by interposing an intervening piece so as to float above the predetermined distance. A work space is formed between the leg of the column and the horizontal member directly below it, such as the base, beam, girder, etc., while the steel rod reinforcement material is formed to a length that allows the work space to serve as a connection part. Is provided in the cross section of each pillar in a biting manner and penetrates the vertical groove where the steady rest fitting is arranged at the required place, or the axis of each pillar, and the small hole where the steady rest fitting is placed at the required place. , Vertically installed by fitting or inserting into each steady rest, the steel rods, and the steel rods and the anchor bolts that are raised from the foundation are tightly connected and integrated by appropriate means in the work spaces where they are located. By doing so, the wooden shaft is obtained by adding tensile strength to the pillars that are divided and arranged vertically. It is an structure.

【００１１】横架材および補助横架材については記述の
とおりの構成から形成され、それらに組み合わされる介
在片は、本来の横架材に相当する横架材、即ち土台や
梁、桁、胴差し、敷き桁、陸梁等と上記した補助横架材
との間に介在されて作業空間を構成すると共に、垂直荷
重を順次下方の横架材、あるいは基礎に伝える上で支障
を来すことのないよう、その材質や大きさ、介在個数等
が吟味されて採用されなければならない。また、これら
介在片の介在位置、特に柱を建て込む辺りに位置するこ
ととなる介在片の介在位置に関しては、基礎と土台との
間に配される介在片（場合によっては採用されないこと
もある）、および横架材と補助横架材との間に配される
介在片とも、後述の鋼棒の組み込み具合を考慮し、基礎
から立ち上がるアンカーボルトとの緊結、あるいは鋼棒
相互の緊結に必要となる作業空間の形性上支障がなく、
且つ、垂直荷重の伝達に不都合を生じさせない最適な配
置を選択するようにしなければならない。また、介在片
の巾は、横架材および補助横架材の巾寸法より所定寸法
だけ大きめのものを採用し、横架材と補助横架材の間に
介在、固定された段階で、この介在片が、横架材および
補助横架材側面より突出状となるようなものとすること
もでき、その場合、その突出部分を利用して、床パネル
その他水平部材を載置、支持する機能をも兼用し得るよ
うなものとすることもできる。The horizontal member and the auxiliary horizontal member are formed as described above, and the interposing piece combined with them is a horizontal member corresponding to the original horizontal member, that is, a base, a beam, a girder, a body. The work space is formed by interposing the above-mentioned auxiliary horizontal members with the feeders, floor girders, land beams, etc., and it interferes in transmitting vertical load to the lower horizontal members or the foundation in sequence. Therefore, the material, size, number of intervening materials, etc. must be carefully examined and adopted. In addition, regarding the intervening position of these intervening pieces, particularly the intervening position of the intervening pieces that are to be positioned around the pillars to be built, the intervening pieces arranged between the foundation and the base (may not be adopted depending on the case). ), And the intervening piece placed between the horizontal member and the auxiliary horizontal member are necessary for the connection with the anchor bolts rising from the foundation or for the connection between the steel rods in consideration of the assembling condition of the steel rod described later. There is no problem in the shape of the working space,
In addition, it is necessary to select an optimal arrangement that does not cause a problem in transmission of vertical load. In addition, the width of the intervening piece is larger than the width of the horizontal and auxiliary horizontal members by a predetermined dimension, and when it is interposed and fixed between the horizontal and auxiliary horizontal members, The intervening piece may be formed to project from the side surface of the horizontal member and the side surface of the auxiliary horizontal member, and in that case, the function of mounting and supporting the floor panel and other horizontal members by utilizing the protruding portion. Can also be used.

【００１２】アンカーボルトは、その上端ネジ切り部が
横架材である土台の上に確保されている作業空間に確実
に突出状となるのに十分な基礎上からの突出長さを有す
るよう規制して形成されなければならず、特に、基礎と
土台との間にも介在片を介在する構造を採用する場合、
従前までのものに比較し、基礎上端からの突出長は、介
在片を介在させる分だけ長めのものに予め設定して採用
することになる。基礎は、所謂従前からの現場打ちによ
る布基礎で十分であり、しかも、特に基礎と土台との間
にも介在片を介在する構造を採用する場合、その天端の
均し具合は、少なくともアンカーボルトの植設されてい
る辺りと、その間数箇所、即ち介在片を介在させる位置
の部分とだけが、所定の基準レベルに合致するように納
められていればよく、したがって、水糸を基準にして実
施する天端均し作業も、極端には上記指定箇所だけに限
って済ますことも可能である。The anchor bolt is regulated so that its upper end threaded portion has a projecting length from the foundation sufficient to surely project into a working space secured on a base which is a horizontal member. In particular, when adopting a structure in which an intervening piece is also interposed between the foundation and the base,
Compared with the conventional one, the protrusion length from the upper end of the foundation is set to be longer by the amount of interposing the intervening piece and used. A so-called conventional cast-in-place foundation is sufficient as the foundation, and especially when a structure in which an intervening piece is interposed between the foundation and the base is adopted, the leveling of the top is at least the anchor. Only the area where the bolts are planted and a few places between them, that is, the position where the intervening piece is interposed, need only be accommodated so as to meet the predetermined reference level. It is also possible to extremely perform the crown leveling work to be performed only at the above designated locations.

【００１３】鋼棒は、形成する作業空間相互間に達する
長さの所要強度断面を有するものとし、両端にはネジ切
り加工その他、公知の鋼棒緊結手段に見合った加工が予
め施され、鋼棒相互および鋼棒とアンカーボルトとが、
作業空間において簡単に緊結可能となるようにする。な
お、最も上方にくる鋼棒の上端は、その位置に配された
横架材上面を支持部として固定されなければならないた
め、横架材上面への食い込みを防止する適宜手段、例え
ば横架材上面に載置する適宜厚さと大きさとを有する平
鋼板（鋼棒上端を挿通する通孔が所定位置に形成された
平鋼板）との組み合わせその他が採用可能なものに計画
されていなければならない。以下では、図面に示されて
いるこの発明を代表する幾つかの実施例に基づいて、よ
り具体的にこの発明の木造軸組補強材用振れ止め金具を
説示することとする。The steel rod has a required strength cross section of a length reaching between the working spaces to be formed, and both ends thereof are preliminarily subjected to threading and other processing corresponding to known steel rod fastening means. Mutual rods and steel rods and anchor bolts
Make it easy to tighten the work space. The upper end of the uppermost steel rod must be fixed with the upper surface of the horizontal member arranged at that position as a supporting portion, so an appropriate means for preventing bite into the upper surface of the horizontal member, such as horizontal member A combination with a flat steel plate (a flat steel plate having a through hole for inserting the upper end of the steel rod formed at a predetermined position) having an appropriate thickness and size to be placed on the upper surface and the like should be planned so that it can be adopted. In the following, the steady rest fitting for a wooden frame reinforcing material of the present invention will be explained more concretely based on some embodiments representative of the present invention shown in the drawings.

【００１４】[0014]

【実施例１】図１の全体斜視図、図２の柱５を中央で縦
割り状とした上、中間部を大巾に省略し、補強材４を挿
通、支持した状態で柱５の軸芯に設けた小孔５１に組み
合わせた状態を示す斜視図からも理解されるように、こ
の実施例に示された木造軸組補強材用振れ止め金具は、
嵌着部１が、木製柱５の軸芯に形成された四角断面の小
孔５１にやや強制的に嵌合する四角断面の短角筒状のも
のに形成され、４面各面の同一方向端縁から、先端側を
やや外側に反らせた形状の短冊状弾性片を突出形成する
と共に、各短冊状弾性片の先端側を夫々内側方向に寄
せ、嵌着部１よりも内側に収まった構造の吸振部２，
２，……に形成し、それら各吸振部２，２，……である
短冊状弾性片の先端側で囲まれた中空部３が、採用され
る補強材４の材径より小さく形成されている結果、この
中空部３に挿通された補強材４は、これら各吸振部２，
２，……に弾性保持され、嵌着部１の内側に収まる状態
（したがって、図３の軸線に沿う方向の中央縦断面図に
示されているとおり、嵌着部１を嵌着する細溝あるいは
小孔５１に触れない状態）を実現することになる。[Embodiment 1] Overall perspective view of FIG. 1, the pillar 5 of FIG. 2 is vertically split in the center, the middle part is omitted to a large extent, and the shaft of the pillar 5 is inserted and supported by the reinforcing member 4. As can be understood from the perspective view showing the state of being combined with the small holes 51 provided in the core, the steady rest fitting for the wooden frame reinforcing member shown in this embodiment is
The fitting portion 1 is formed in a rectangular prism shape having a square cross section that is forcibly fitted into a small hole 51 having a square cross section formed in the axial center of the wooden column 5, and the four faces are in the same direction. A structure in which a strip-shaped elastic piece having a shape in which the tip side is slightly outwardly warped is formed to project from the end edge, and the tip side of each strip-shaped elastic piece is moved inward to fit inside the fitting portion 1 Vibration absorption part 2,
2, ..., and the hollow portion 3 surrounded by the tip end side of the strip-shaped elastic piece which is each of the vibration absorbing portions 2, 2 ,. As a result, the reinforcing member 4 inserted in the hollow portion 3 is
2, elastically held in the fitting part 1 (therefore, as shown in the central longitudinal sectional view in the direction of the axis of FIG. 3, the narrow groove into which the fitting part 1 is fitted). Alternatively, the state where the small holes 51 are not touched) is realized.

【００１５】[0015]

【実施例２】図４の斜視図には、この金具の別の実施例
が示されている。この例のものも、嵌着部１が、木製柱
５の軸芯に形成された四角断面の小孔５１にやや強制的
に嵌合する四角断面の短角筒状のものに形成され、吸振
部２が上記実施例と異なり、中央をやや補強材４の材形
よりも小径の中空部３としてなる弾性素材、例えばゴム
材やウレタンフォーム製のものとして形成され、該吸振
部２を短角筒状の嵌着部１の内側に接着、一体化して実
現される木造軸組補強材用振れ止め金具である。Second Embodiment Another embodiment of this metal fitting is shown in the perspective view of FIG. Also in this example, the fitting portion 1 is formed into a small rectangular tubular shape having a square cross section that is forcibly fitted into the small hole 51 having a square cross section formed in the axial center of the wooden column 5 to reduce vibration. Different from the above embodiment, the portion 2 is formed of an elastic material having a hollow portion 3 having a diameter slightly smaller than the shape of the reinforcing material 4 at the center, for example, made of rubber material or urethane foam, and the vibration absorbing portion 2 has a short angle. It is a steady rest metal fitting for a wooden frame reinforcing material which is realized by being bonded and integrated inside the tubular fitting portion 1.

【００１６】なお、各実施例とも、木製柱５の小孔５１
が四角断面で、それに嵌合する嵌着部１も略相似形の四
角断面のものとしているが、これらは、共に四角断面に
限定される訳ではなく、例えば小孔５１を四角断面、嵌
着部１を円形断面のものとして組み合わせたり、あるい
は両方とも相似形の円形、楕円形、菱形その他の断面の
ものとする等は適宜変更可能であり、それらによって特
にこの発明の作用効果に格別の差異を生じさせるもので
なく、したがって、全てこの発明の技術的思想の範囲に
包含されている。In each embodiment, the small hole 51 of the wooden pillar 5 is used.
Has a square cross-section, and the fitting portion 1 to be fitted thereto has a substantially similar square cross-section, but these are not limited to the square cross-section, and for example, the small hole 51 may be fitted into the square cross-section. The parts 1 may be combined in a circular cross-section, or both may be similar circles, ellipses, rhombuses or other cross-sections, etc., which can be changed as appropriate, and the effects of the present invention are particularly different. Therefore, all are included in the scope of the technical idea of the present invention.

【００１７】[0017]

【実施例３】図５の柱５中間部および２階の横架材７中
途より上方を大巾に省略し、それ以下の横架材、即ち、
土台６を中心とした組み合わせ構造で示す要部縦断面図
からも理解されるように、この実施例によって実現され
るこの発明の木造軸組補強材用振れ止め金具を補強材４
に組み合わせ、使用して成る代表的な木造軸組構造は、
以下に示すとおりのものである。[Third Embodiment] The middle portion of the pillar 5 and the horizontal member 7 on the second floor of FIG.
As can be understood from the longitudinal cross-sectional view of the main part showing the combined structure centering on the base 6, the steady rest metal fitting for the wooden frame reinforcing material of the present invention realized by this embodiment is provided with the reinforcing material 4.
A typical wooden frame structure that is combined and used in
It is as shown below.

【００１８】適宜天端均しの施された現場打ち布基礎Ｂ
には、所定の突出長さを有する如くしたアンカーボルト
が多数植設され、その中の所定のアンカーボルトＢ１，
Ｂ１，……だけは、立設すべき基準階の柱５根元に近接
した所定位置、即ち、小孔５１に挿通される鋼棒製の補
強材４の配設される位置に規制されて形成されるように
する。On-site ply cloth foundation B with appropriate crowning
A large number of anchor bolts having a predetermined projecting length are planted in this, and the predetermined anchor bolts B1,
Only B1, ... Are regulated and formed at a predetermined position close to the base of the pillar 5 of the standard floor to be erected, that is, a position where the reinforcing member 4 made of a steel rod inserted into the small hole 51 is arranged. To be done.

【００１９】柱５の根元辺りに規制されて配されたアン
カーボルトＢ１，Ｂ１，……を除くその他のアンカーボ
ルト（図中省略）には、土台二つ割り程度の厚さで、土
台巾より大きくして土台側面より突出した部分を規制床
パネル載置部に兼用可能としたサイズの介在片を嵌合す
る一方、先の柱５根元辺りに配されたアンカーボルトＢ
１，Ｂ１には、近接させて同一厚の介在片８，８，……
を介在した上、それを支持部として土台６を横たえ、該
土台６から突出したアンカーボルトの中、図からは省略
されているが、柱５位置に対応させて配したアンカーボ
ルトＢ１，Ｂ１以外のアンカーボルトの上端ネジ切り部
に座金を被せ、ナット締めすることにより、先ず最下部
の横架材である土台６を布基礎Ｂ上に強固に一体化す
る。その際、必要があれば、介在片８，８，……と土台
６あるいは布基礎Ｂの何れかもしくは双方の間に接着剤
やジベル等を採用するようにすれば、それら介在片８，
８，……の定着がより確実なものとなる。The other anchor bolts (not shown in the figure) except the anchor bolts B1, B1, ... which are arranged around the base of the pillar 5 are thicker than the base and are thicker than the base width. An interlocking piece of a size that allows the portion protruding from the side surface of the base to be used also as the regulated floor panel mounting portion is fitted, while the anchor bolt B is arranged near the base of the previous pillar 5
1, B1 are placed close to each other, and the intervening pieces 8, 8 have the same thickness.
In addition to the anchor bolts B1 and B1 arranged corresponding to the position of the pillar 5, among the anchor bolts protruding from the base 6, the base 6 is laid on top of the anchor bolts. By covering the upper threaded portion of the anchor bolt with a washer and tightening the nut, first, the base 6 which is the lowermost cross member is firmly integrated on the cloth foundation B. At that time, if necessary, by using an adhesive agent, a dowel, or the like between the intervening pieces 8, 8, ... And either the base 6 or the cloth foundation B or both, the intervening pieces 8, 8 ,.
The fixation of 8, ... becomes more reliable.

【００２０】続いて、上記の如くして固定された土台６
上に、次の介在片９，９，……が、土台６を貫通、突出
しているアンカーボルトＢ１に所定間隔を置いて配さ
れ、それら全ての介在片９，９，……を支持部として補
助横架材６１を載置した後、アンカーボルトＢ１付近の
介在片９，９を除いた、図示にはされていない同レベル
の他の介在片９，９，……位置において、補助横架材６
１、介在片９、土台６の、予め上下方向に合致させてあ
る通孔に緊結ボルト（図示せず）を貫通させ、その上下
端に座金を介してナット止めすることにより、最終的に
この補助横架材６１も介在片９、土台６、その下の介在
片８を介して布基礎Ｂ上に固定された構造を実現する。
この際の、緊結ボルトによる補助横架材６１、介在片
８，９、土台６の締結作業は、布基礎Ｂ上端と土台６と
の間に介在片８，８，……を介して作業空間Ｓが確保さ
れていることから実現可能となるものである。Subsequently, the base 6 fixed as described above
The following intervening pieces 9, 9, ... Are arranged at predetermined intervals on the anchor bolt B1 penetrating and protruding through the base 6, and all of the intervening pieces 9, 9, .. After the auxiliary horizontal members 61 are placed, the auxiliary horizontal members 9 and 9 of the same level (not shown) are removed at positions other than the intermediate members 9 and 9 near the anchor bolt B1. Material 6
Finally, a fastening bolt (not shown) is passed through the through holes of the interposing piece 9, the base 6 and the base 6, which are aligned in the vertical direction in advance, and nuts are fixed to the upper and lower ends thereof via washers to finally obtain this. The auxiliary horizontal member 61 also realizes a structure fixed on the cloth foundation B via the interposition piece 9, the base 6, and the interposition piece 8 below the base piece.
At this time, the work of fastening the auxiliary horizontal member 61, the interposition pieces 8 and 9, and the base 6 with the tightening bolts is performed between the upper end of the cloth foundation B and the base 6 through the interposition pieces 8, 8 ,. This is feasible because S is secured.

【００２１】こうして、土台６から突出状となっている
アンカーボルト１の周りには、図に示されているよう
に、作業空間Ｓが確保された構造となる。In this way, a work space S is secured around the anchor bolt 1 projecting from the base 6, as shown in the figure.

【００２２】柱５，５，……は、予め工場加工段階で軸
芯部分に小孔５１が形成され、その全長に応じて２〜３
個の前記したこの発明の振れ止め金具が配され、現場に
搬入後、夫々各階の床を構成する補助横架材７１（図示
せず），６１，……の上に夫々柱脚を載置して立設され
るものであって、それら柱５，５，……は、土台６から
突出状となっているアンカーボルトＢ１，Ｂ１の軸線を
そのまま上方に垂直に延ばした線上に相当する部分が、
水平断面において柱５，５，……の軸芯に形成された小
孔５１に合致するよう、規制して組み立てられる。The pillars 5, 5, ... Preliminarily have small holes 51 formed in the shaft core portion at the stage of factory processing, and have a few holes depending on their total length.
Each of the above-mentioned steady rests of the present invention is arranged, and after being carried into the site, the column bases are respectively placed on the auxiliary horizontal members 71 (not shown), 61, ... Which respectively constitute the floors of the respective floors. , And the pillars 5, 5, ... are portions corresponding to the lines of the anchor bolts B1, B1 projecting from the base 6 that extend vertically upward as they are. But,
It is regulated and assembled so as to match the small holes 51 formed in the axial centers of the columns 5, 5, ... In the horizontal cross section.

【００２３】こうして布基礎Ｂ上に組み立てられた軸組
構造の、１階床の作業空間Ｓと２階床の作業空間Ｓ（図
中省略）、２階床の作業空間Ｓ（図中省略）と３階床の
作業空間Ｓ（図中省略）、および３階床の作業空間Ｓ
（図中省略）と小屋組部分の横架材上面空間との間に相
当する長さで、両端がネジ切り部に形成された鋼棒製の
補強材４，４，４を、夫々毎にその上下端ネジ切り部か
ら横架材７，６および補助横架材７１（図中省略），６
１に形成してある通孔７ｈ，６ｈ，７１ｈ（図中省
略），６１ｈに差し込み、各補強材４の端部ネジ切り部
が、作業空間Ｓ，Ｓ，……において相対向状となるよう
にした後、緊結用のコネクタ４１，４１，……で上下に
螺合、緊結する。The working space S of the first floor and the working space S of the second floor (not shown in the figure) and the working space S of the second floor (not shown in the figure) of the framework structure assembled on the cloth foundation B in this manner. And the working space S on the third floor (not shown) and the working space S on the third floor
Reinforcing materials 4, 4 and 4 made of steel rods, each of which has a length corresponding to a space between the upper part of the horizontal frame of the roof part (not shown) and threaded portions at both ends, are respectively provided. From the upper and lower end threaded parts to the horizontal members 7, 6 and auxiliary horizontal members 71 (not shown in the figure), 6
1 is inserted into through holes 7h, 6h, 71h (not shown in the figure), 61h so that the end threaded portions of each reinforcing member 4 face each other in the work spaces S, S, .... After that, the connectors 41, 41, ... for tight connection are screwed up and down to be tightly connected.

【００２４】その結果、布基礎Ｂに定着され、土台６上
に突出しているアンカーボルトＢ１，Ｂ１，……の上端
から最上階に配された補強材４の上端、小屋組部分の横
架材上面に支持された部分までが、完全に１本化された
鋼棒製の補強材４，４，４となり、布基礎Ｂ上に組み上
げられた各横架材７，６、介在片８，８，９，９、補助
横架材７１（図中省略），６１、および柱５，５，……
が完全に一体化され、恰も、コンクリート構造物におけ
る鉄筋のように、この１本化された鋼棒製の補強材４，
４，４が機能し、横架材７，６によって分断された柱５
の、それらからの浮き上がり現象が確実に防止された木
造軸組構造を実現すると共に、水平外力その他で柱５，
５，……に振動を生じた場合にも、細溝あるいは小孔５
１，５１，……内に挿通している補強材４，４，……
が、振れ止め金具に弾性支持されていて、共鳴すること
もなければ、細溝あるいは小孔５１，５１，……に接触
して雑音を発生するようなこともない構造を実現する。As a result, from the upper ends of the anchor bolts B1, B1, ... Fixed to the cloth foundation B and projecting on the base 6, the upper ends of the reinforcing members 4 arranged on the uppermost floor, and the horizontal members of the roof frame part. Up to the part supported on the upper surface, the reinforcing members 4, 4 and 4 made of a completely integrated steel rod are provided, and the horizontal members 7 and 6 and the interposing pieces 8 and 8 assembled on the cloth foundation B are assembled. , 9, 9, auxiliary horizontal members 71 (not shown in the figure), 61, and columns 5, 5, ...
Are completely integrated, and like steel bars in concrete structures, this single reinforcing member made of steel rod 4,
Pillar 5 in which 4, 4 function and are divided by the horizontal members 7, 6.
In addition to realizing a wooden frame structure that reliably prevents the lifting phenomenon from those, the pillar 5,
Even when vibration occurs in 5, ..., the narrow groove or small hole 5
1, 51, ... Reinforcing material inserted inside 4, 4 ,.
However, it is elastically supported by the steady rest and realizes a structure which does not resonate and does not generate noise by contacting the narrow grooves or the small holes 51, 51, ....

【００２５】[0025]

【作用効果】以上のような構成からなるこの発明の木造
軸組補強材用振れ止め金具は、浮き上がり現象の確実に
阻止された木造軸組構造を実現するために柱５，５，…
…に組み合わされる補強材４，４，……を、嵌着部１に
支持された吸振部２で弾性支持する構造に形成されてい
て、木製柱５，５，……に形成されている細溝あるいは
小孔５１，５１……内において、それら補強材４，４，
……が共鳴あるいは接触して雑音を発してしまう不都合
を完全に防止し、補強された構造と共に快適な空間の形
成された木造軸組構造を実現することができるものであ
る。With the above-described construction, the steady rest fitting for the wooden frame reinforcing material of the present invention has columns 5, 5, ... To realize the wooden frame structure in which the lifting phenomenon is reliably prevented.
The reinforcing members 4, 4, ... Combined with ... Are elastically supported by the vibration absorbing portion 2 supported by the fitting portion 1, and are formed on the wooden columns 5, 5 ,. In the grooves or small holes 51, 51 ...
It is possible to completely prevent the inconvenience of causing noises due to resonance or contact, and to realize a wooden frame structure having a reinforced structure and a comfortable space.

【００２６】これら金具の木製柱５，５，……への組み
合わせ構造も、細溝あるいは小孔５１，５１，……に対
し、その全長の要所要所に２〜３個前後の適数個を嵌
合、組み合わせるだけで実現されるものであって、極め
て取り扱いが容易である上、その構造自体も簡潔なもの
で製造容易であり、しかも、補強材４，４，……の挿
通、組み合わせ操作についても、一方から差し込むだけ
の簡単な作業で確実に実現し得るものであることから、
補強構造全体のコスト計算上でも殆ど影響を出さない経
済的なものとして採用可能なものとすることができる。The combination structure of these metal fittings with the wooden pillars 5, 5, ... is also a suitable number of about 2 to 3 at the required points along the entire length with respect to the narrow grooves or small holes 51, 51 ,. It is realized only by fitting and combining, and it is extremely easy to handle, its structure itself is simple and easy to manufacture, and the reinforcements 4, 4, ... Are inserted and combined. As for the operation, it can be surely realized by a simple work of inserting from one side,
It can be adopted as an economical one having almost no effect on the cost calculation of the entire reinforcing structure.

【００２７】特に、実施例に示すこの発明を代表する構
造によるものの場合、既往の角パイプをそのまま加工形
成することが可能であり、しかも、工場形成段階の木製
柱５に対し、小孔５１形成加工段階で予めその小孔５１
内に嵌合、配置して組み込むことが可能であり、しか
も、その半裁状の木製柱５に溝加工して張り合わせ、完
成させる段階において、これら金具が芯合わせ金具とし
ての機能も発揮することとなって、精度の高い小孔５１
付き木製柱５の製造を可能にするという秀れた付加価値
も有するものとなり、その効果は更に一層高められるこ
とになる。In particular, in the case of the structure representative of the present invention shown in the embodiment, it is possible to process and form the existing square pipe as it is, and further, the small hole 51 is formed in the wooden pillar 5 at the factory forming stage. The small hole 51 in advance in the processing stage
It is possible to fit, arrange and assemble inside, and at the same time, these metal fittings also function as centering metal fittings at the stage of grooving and sticking to the half-cut wooden pillar 5 to complete it. And small hole 51 with high accuracy
It also has an excellent added value of being able to manufacture the attached wooden columns 5, and the effect is further enhanced.

【００２８】叙上の如く、この発明の木造軸組補強材用
振れ止め金具は、これまでの木造軸組構造では全く必要
とされていなかった新規な金具であって、補強された新
たな木造軸組構造を実現する上で欠くことができない秀
れた特徴を発揮できる上、それ自体が、その構造上から
取扱性、経済性に秀れていることから、強固で快適な空
間を実現する木造軸組構造からなる建造物を実現するた
めに大いにその威力を発揮するものといえる。また、そ
れを採用して実現される木造軸組構造は、特に柱の引っ
張り耐力が増強されて安全且つ住み心地の良いものとな
る上、構造の簡素化にも繋がり、我が国古来からの木造
軸組構造の規格化の推進にも役立つという秀れた特徴を
有するものである。As described above, the steady rest metal fitting for the wooden frame reinforcing material of the present invention is a new metal fitting that has never been required in the conventional wooden framework structure, and is a new reinforced wooden structure. It has excellent features that are indispensable for realizing a frame structure, and it is also excellent in handleability and economic efficiency due to its structure, thus realizing a strong and comfortable space. It can be said that it exerts great power to realize a structure having a wooden frame structure. In addition, the wooden frame structure realized by adopting it is particularly safe and comfortable to live because the tensile strength of the pillar is strengthened, and it also leads to simplification of the structure, and the wooden frame structure from ancient Japan It has the outstanding feature that it also helps promote the standardization of the assembly structure.

【図面の簡単な説明】[Brief description of drawings]

図面は、この発明を代表する幾つかの実施例に基づくも
のである。The drawings are based on several exemplary embodiments of the invention.

【図 １】この発明の金具の全体斜視図である。FIG. 1 is an overall perspective view of a metal fitting of the present invention.

【図 ２】中間部を大巾に省略し、予め補強材との組み
合わせ状態も取り入れた、木製柱への組み込み過程にお
ける斜視図である。FIG. 2 is a perspective view in a process of assembling into a wooden column in which a middle portion is largely omitted and a state of combination with a reinforcing material is also taken in advance.

【図 ３】中間部を大巾に省略し、表現上の都合から横
倒し状態にして補強材との組み合わせ構造を示す中央縦
断面図である。FIG. 3 is a central vertical cross-sectional view showing a combined structure with a reinforcing member in a state of being laterally laid down for convenience of expression, with the middle portion largely omitted.

【図 ４】他の実施例によるこの発明の金具を示す全体
斜視図である。FIG. 4 is an overall perspective view showing a metal fitting of the present invention according to another embodiment.

【図 ５】この発明の金具を使用した木造軸組構造の要
部を示す縦断面図である。FIG. 5 is a longitudinal sectional view showing a main part of a wooden frame structure using the metal fitting of the present invention.

【符号の説明】[Explanation of symbols]

１ この発明の金具の嵌着部 ２ 同吸振部 ３ 同中空部 ４ 補強材 ４１ 同コネクタ ５ 木製柱 ５１ 同小孔 ６ 土台等の横架材 ６１ 同土台上に空間をおいて並置される補助横架材 ７ 針、桁等の横架材 ７１ 同横架材上に空間をおいて並置される補助横架
材 ８ 基礎上の介在片 ９ 横架材上の介在片 Ｂ 布基礎 Ｂ１ アンカーボルト Ｓ 作業空間1 Fitting part of the metal fitting of the present invention 2 Same vibration absorbing part 3 Same hollow part 4 Reinforcing member 41 Same connector 5 Wooden column 51 Same small hole 6 Horizontal material such as base 61 Auxiliary placed side by side on the same base Horizontal material 7 Horizontal material such as needles and girders 71 Auxiliary horizontal material 8 which is juxtaposed on the horizontal material with a space 8 Intervening piece 9 on the base Material B on the horizontal material B Cloth foundation B1 Anchor bolt S workspace

フロントページの続き (56)参考文献 特開 平５−302360（ＪＰ，Ａ) 特開 平１−190859（ＪＰ，Ａ) (58)調査した分野(Int.Cl.⁷，ＤＢ名) E04B 1/26 実用ファイル（ＰＡＴＯＬＩＳ) 特許ファイル（ＰＡＴＯＬＩＳ)Continuation of the front page (56) Reference JP-A-5-302360 (JP, A) JP-A-1-190859 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) E04B 1 / 26 Practical file (PATOLIS) Patent file (PATOLIS)

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】 木造軸組構造における土台、梁、桁等横
架材あるいは補助横架材を含む横架材を貫通し、且つ横
架材あるいは補助横架材を含む横架材間に立設される柱
に対しては、各柱断面内に食込み状に設けた縦溝に嵌合
するか、もしくは各柱軸芯を貫通する小孔に挿通されて
各横架材と各柱とを上下に一体化してしまう補強材を、
略密着状に一定方向から挿通可能とする中空部を有し、
該中空部から外側所定位置には、柱に形成された縦溝も
しくは小孔の内壁に当接する嵌着部を有し、それら中空
部から嵌着部までの間を弾性素材からなる吸振部に形成
してなる木造軸組構造補強材用振れ止め金具。1. A foundation, a beam, a girder or the like in a wooden frame structure that penetrates a horizontal member including a horizontal member or an auxiliary horizontal member, and stands between horizontal members or a horizontal member including an auxiliary horizontal member. For the pillars to be installed, each horizontal member and each pillar is fitted into a vertical groove provided in the cross section of each pillar or inserted into a small hole penetrating the core of each pillar. Reinforcement material that will be integrated vertically
It has a hollow part that can be inserted from a certain direction in a substantially contact shape,
At a predetermined position outside the hollow portion, there is a fitting portion that comes into contact with an inner wall of a vertical groove or small hole formed in a pillar, and a vibration absorbing portion made of an elastic material is provided between the hollow portion and the fitting portion. Steady metal fittings for the wooden frame structure reinforcing material formed. 【請求項２】 各階柱の脚部を、土台、梁、桁等横架材
に対して介在片を介して所定間隔上方に浮かせて並置し
てなる直下の補助横架材上に接続することにより、各階
柱の脚部と土台、梁、桁等、その直下に位置する横架材
との間に作業空間を形成する一方、この作業空間を接続
部とし得る長さに形成された鋼棒製の補強材を、各柱断
面内に食込み状に設けられ、要所要所に振れ止め金具の
配された縦溝、もしくは各柱軸芯を貫通し、要所要所に
振れ止め金具の配された小孔の、各振れ止め金具に嵌合
もしくは挿通させて縦設し、それら補強材相互間、およ
び補強材と基礎から立ち上げたアンカーボルト間を、夫
々の位置する作業空間において適宜手段で緊結、一体化
することにより、分断されて上下に配されている柱に引
っ張り耐力を付与してなる請求項１記載の木造軸組構造
補強材用振れ止め金具を使用した木造軸組構造。2. The leg portion of each floor pillar is connected to an auxiliary horizontal member directly below, which is placed side by side above a predetermined distance from a horizontal member such as a base, a beam, or a girder via an intervening piece. By this, a working space is formed between the leg of each floor and the horizontal members directly below it, such as the foundation, beams, girders, etc., while the steel bar is formed to a length that allows the working space to serve as a connecting part. Reinforcement made of steel is provided in the cross section of each pillar in a biting manner, penetrates the vertical groove where the steady rest fitting is arranged at the required place or the axis of each pillar, and the steady rest metal is placed at the required place. The small holes that are fitted or inserted through the steady rests are installed vertically, and the space between the reinforcements and between the reinforcements and the anchor bolts raised from the foundation can be adjusted by appropriate means in the working spaces where they are located. By tightly connecting and integrating, pulling resistance is given to the pillars that are divided and arranged above and below A wooden frame structure using the steady rest metal fitting for a wooden frame structure reinforcing material according to claim 1.