JP6340499B2 - Horizontal member having tapered joint, pre-cut method thereof, processing machine and program for processing the horizontal member - Google Patents

Horizontal member having tapered joint, pre-cut method thereof, processing machine and program for processing the horizontal member Download PDF

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JP6340499B2
JP6340499B2 JP2013184235A JP2013184235A JP6340499B2 JP 6340499 B2 JP6340499 B2 JP 6340499B2 JP 2013184235 A JP2013184235 A JP 2013184235A JP 2013184235 A JP2013184235 A JP 2013184235A JP 6340499 B2 JP6340499 B2 JP 6340499B2
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永井 智
智 永井
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兵庫県
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本発明は、木造軸組工法住宅に使用される横架材であって、その仕口の強度を飛躍的に向上せしめた横架材に関する。特に、横架材として広く使用されているマツ類よりも柔らかい材種であるスギ材などを使用した場合でも、接合部分である仕口の耐圧強度を向上することができる横架材に関する。また、このような横架材の大量加工を可能とするプレカット工場ラインでのプレカット方法に関する。   The present invention relates to a horizontal member used in a wooden frame construction method house, and the horizontal member has dramatically improved the strength of the joint. In particular, the present invention relates to a horizontal member that can improve the pressure-resistant strength of a joint as a joint portion even when a cedar material that is softer than pines widely used as a horizontal member is used. The present invention also relates to a precut method in a precut factory line that enables mass processing of such horizontal members.
わが国では、木材資源に関しては人工林の成熟による国産木材、特に国産スギの増産が見込まれる一方で、木材需要に関しては人口の減少や住宅建築戸数の減少により需要が縮小してゆく傾向がみられる。この国産木材の需給ギャップを埋めるべく国産木材の有効活用が課題となっている。その対策の一つとして、木造家屋一戸あたりの国産木材の使用量を増やし、木造家屋向けにより多くの良質な国産木材を供給して行くことが国産木材の利用拡大につながる。   In Japan, the production of domestic timber, especially domestic cedar, is expected due to the maturation of artificial forests, while the demand for timber tends to shrink due to a decrease in population and the number of residential buildings. . The effective utilization of domestic timber has become an issue to close the gap between supply and demand for domestic timber. As one of the countermeasures, increasing the amount of domestic timber used per wooden house and supplying more high-quality domestic timber to wooden houses will lead to expanded use of domestic timber.
国産木材を生産する素材・製材業界及び利用する加工・建築業界では,林業・木材産業の活性化に向けたスギ材の利用技術開拓へのニーズが高まっている。
ここで、スギが活用されていない木造家屋の部材として横架材が挙げられる。一般の木造軸組工法住宅において、梁や桁などの横架材に使用される木材量は木造家屋全体の3〜4割を占めている。
横架材には強度が求められることから伝統的にマツ類が多用されてきた。現状はその9割以上にベイマツやスプルース集成材等の外国産木材が用いられている。この横架材として外国産木材に代替して国産木材を使用することができれば、国産木材の消費量が増加する。
In the materials / lumber industry that produces domestic timber and the processing / architecture industry that uses it, there is a growing need to develop technology for using cedar wood to revitalize the forestry and timber industries.
Here, a horizontal member is mentioned as a member of a wooden house where cedar is not utilized. In general wooden framed houses, the amount of timber used for horizontal members such as beams and girders accounts for 30-40% of the total wooden houses.
Traditionally, pine has been used extensively because of the strength required for horizontal members. At present, more than 90% of them use foreign timber such as pine and spruce laminated timber. If domestic timber can be used instead of foreign timber as the horizontal member, the consumption of domestic timber will increase.
図19は、従来の横架材の仕口の接合部の作りを簡単に示した図である。
図19に示すように、従来の大入れ11の形状は側面16が略垂直で底面17が平たいいわゆる矩形となっている。また、従来の蟻12は大入れ11の前面に設けられ、その形状は、やはり、側面18が略垂直で底面19が平たくいわゆる矩形となっている。
この従来の大入れ11および蟻12を備えた仕口は、機械的なプレカット工法により製作された場合でも、両者とも基本形状は矩形であった。なお、機械的なプレカット工法の場合、角部分の加工が容易なため、角の無いいわゆるU字形状の大入れ11も見られる(実開昭61−76003号公報、特開平09−60119号公報など)。
FIG. 19 is a diagram simply showing the creation of a joint portion of a conventional horizontal member.
As shown in FIG. 19, the shape of the conventional case 11 is a so-called rectangle in which the side surface 16 is substantially vertical and the bottom surface 17 is flat. Further, the conventional ant 12 is provided on the front surface of the case 11, and the shape of the ant 12 is a so-called rectangle with the side surface 18 being substantially vertical and the bottom surface 19 being flat.
Even when the conventional spigot 11 and the dovetail 12 are manufactured by a mechanical pre-cut method, the basic shape of both is rectangular. In the case of the mechanical precut method, since the corner portion is easily processed, a so-called U-shaped large insertion 11 having no corners is also seen (Japanese Utility Model Laid-Open No. 61-76003, Japanese Patent Laid-Open No. 09-60119). Such).
実開昭61−76003号公報Japanese Utility Model Publication No. 61-76003 特開平09−60119号公報JP 09-60119 A
上記したように、木造家屋の横架材として外国産木材に代替して国産木材、特に、国産スギ材を使用することができれば、国産木材の消費量が増加する。
ここで、従来のプレカット工法で製作された仕口について様々な材種を用いて仕口耐力を調べてみた。図19に示した形状の大入れおよび蟻の形状に加工された試験体を様々な材種にて製作し、それらの仕口耐力試験を行った。
実験の結果、図19に示すように、従来のプレカット工法で製作された仕口形状では大入れ11の側面16が垂直であるため、接合部分の仕口耐力を実質的に負担しているのは大入れ11の底部17であり、大入れ11の側面16は仕口耐力に関してはあまり寄与していないことが分かった。
つまり、従来の仕口形状では仕口耐力が大入れ11の底部17に集中するので、材種の硬さやめり込み強度によって仕口耐力が決まることが分かった。
As described above, if domestic timber, in particular, domestic cedar, can be used instead of foreign timber as a horizontal member for a wooden house, the consumption of domestic timber will increase.
Here, the joint proof strength was examined using various grades of joints manufactured by the conventional pre-cut method. Test pieces processed into large inserts and ant shapes as shown in FIG. 19 were produced with various grades, and their joint strength tests were performed.
As a result of the experiment, as shown in FIG. 19, in the joint shape manufactured by the conventional pre-cut method, the side face 16 of the large case 11 is vertical, so the joint yield strength of the joint portion is substantially borne. Is the bottom portion 17 of the case 11, and it has been found that the side surface 16 of the case 11 does not contribute much in terms of joint strength.
That is, in the conventional joint shape, the joint yield strength is concentrated on the bottom portion 17 of the large case 11, and it has been found that the joint yield strength is determined by the hardness and penetration strength of the material type.
スギ材は、比較的密度が小さくて柔らかく、めり込み強度も小さいために、横架材としてスギ材を用いると十分な仕口耐力を発揮することが難しいことが確認できた。
一方、マツ材やベイマツやスプルース等の外国材は、比較的密度が大きくて硬く、めり込み強度が大きいために、横架材としてマツ材や外国材を用いると十分な仕口耐力が発揮できることが確認できた。
Since the cedar material has a relatively small density and is soft and has a low penetration strength, it has been confirmed that it is difficult to exhibit sufficient joint strength when using a cedar material as a horizontal member.
On the other hand, foreign materials such as pine wood, bay pine, and spruce are relatively large in density and hard, and have high penetration strength. It could be confirmed.
この実験結果は、横架材の素材としてマツ材が適しておりスギ材は適しないという先人からの言い伝えまたは経験則と合致しており、大多数の建築関係者には、横架材の材種としてスギは不向きとされ、利用することに躊躇することが多かった。   The results of this experiment are consistent with the preacher's legend or empirical rule that pine is suitable as the material of the horizontal material and cedar is not suitable. As a grade, cedar was not suitable and was often hesitant to use it.
しかし、上記に説明したように、木造家屋の横架材に使用される木材量は、木造家屋全体の木材使用量に占める割合が大きいため、国産木材の消費量を向上せしめるためには、国産スギ材の特性である比較的柔らかくめり込み強度が小さいという問題点を克服せしめ、国産スギ材を横架材として使用してその消費量を向上させることが重要である。   However, as explained above, the amount of timber used for horizontal members of wooden houses accounts for a large percentage of the total timber usage of wooden houses, so in order to improve the consumption of domestic timber, It is important to overcome the problem of cedar wood, which is relatively soft and has a low indentation strength, and to improve the consumption by using domestic cedar wood as a horizontal member.
そこで、本発明は、比較的柔らかくめり込み強度が小さい国産スギ材であっても十分に横架材の仕口耐力を発揮することができる構造を備えた横架材、並びにそれらを大量生産するためのプレカット方法を提供することを目的とする。   Accordingly, the present invention provides a horizontal member having a structure that can sufficiently exert the joint strength of the horizontal member even if it is a domestic cedar material that is relatively soft and has a low indentation strength, and for mass-producing them. An object of the present invention is to provide a precut method.
上記目的を達成するため、本発明のテーパーを備えた横架材は、接合箇所となる仕口凸部において大入れと蟻が形成され、仕口凹部において大入れ蟻掛けが形成されている横架材であって、前記仕口凸部の前記大入れの左右の側面部の少なくとも一部において、底面に向かうほど相互の対向距離が小さくなるようにテーパーが設けられており、前記仕口凹部の前記大入れ蟻掛けの少なくとも一部に前記大入れのテーパーに対応するテーパーが設けられていることを特徴とするものである。   In order to achieve the above object, the horizontal member having a taper according to the present invention has a horizontal insert in which a large dovetail and an ant are formed in a joint convex portion to be a joint point, and a large dovetail is formed in a joint concave portion. A taper is provided on at least a part of the left and right side surface portions of the insertion convex portion so as to decrease the mutual facing distance toward the bottom surface, A taper corresponding to the taper of the large insertion is provided on at least a part of the large insertion dovetail.
また、大入れの側面部の下端同士をつなぐ底面部の加圧面に関しては、水平にすることもできれば、アーチ状の曲面として水平面を形成しないようにすることもできる。なお、大入れ蟻掛けの支圧面は大入れの底面の加圧面に対応する形状とすれば良い。大入れの加圧面がアーチ状の曲面であれば大入れ蟻掛けの支圧面は対応するアーチ状の曲面とすれば良い。   Moreover, regarding the pressurizing surface of the bottom surface portion that connects the lower ends of the large side surface portions, it can be horizontal, or it can be prevented from forming a horizontal plane as an arch-shaped curved surface. Note that the pressure bearing surface of the large dovetail may have a shape corresponding to the pressure surface of the bottom surface of the large insertion. If the pressure surface of the large insertion is an arch-shaped curved surface, the pressure bearing surface of the large insertion dovetail may be a corresponding arch-shaped curved surface.
ここで、大入れの側面部のテーパーの角度の構成例については、仕口耐力を計算すると、従来型のテーパーがない場合の大入れの仕口耐力に比べて、大きな仕口耐力が発揮できる大入れの側面部のテーパー角度の範囲として、横架材の幅や高さに応じて0度より大きく40度までの角度に調整せしめることが好ましい。より好ましくは、テーパー角度の範囲が6度から24度であれば仕口耐力が効果的に大きく向上できる。   Here, with regard to the configuration example of the taper angle of the side wall portion of the large insertion, when the joint proof stress is calculated, the large joint proof strength can be exhibited as compared with the large joint proof strength in the case where there is no conventional taper. It is preferable that the range of the taper angle of the side wall portion is adjusted to an angle greater than 0 degree and up to 40 degrees according to the width and height of the horizontal member. More preferably, if the range of the taper angle is 6 degrees to 24 degrees, the joint yield strength can be improved greatly.
発明者らは、従来の横架材の大入れが矩形状またはU字型に設けられ、側面部が略垂直にしか設けられていなかったところ、大入れの側面部において効果的なテーパーを設けることにより仕口耐力が向上することを発見した。発明者らは鉛直方向の負荷に対する仕口耐力は、実質的には前記仕口凹部のテーパー面から横架材の長さ方向へと水平成分として伝達せしめる負荷を増大せしめ、前記仕口凹部の鉛直方向へと垂直成分として伝達する負荷を低減せしめることによって大きくなることについて実験を通じて知見を得た。そのため、従来の横架材であれば、仕口耐力は実質的には垂直成分を受ける底面部のみが発揮し、前記仕口凹部の側面部は横架材の長さ方向へと水平成分を伝達せしめておらず、耐力を発揮していないことが分かった。そこで、本発明の横架材では、前記仕口凹部のアーチ状の曲面により実質的に鉛直方向の負荷を横架材の長さ方向へと水平成分として伝達せしめた底面部に加え、テーパーを持った側面部も実質的に鉛直方向の負荷を横架材の長さ方向へと水平成分として伝達せしめており仕口耐力を発揮することができる。そのため仕口耐力を従来の横架材に比べて大きく確保することができる。   The inventors have provided an effective taper in the side wall portion of the large wall, where the conventional horizontal wall space is provided in a rectangular shape or a U-shape and the side surface portion is provided only substantially vertically. It was discovered that the joint strength is improved. The inventors have increased the load that can be transmitted as a horizontal component from the tapered surface of the joint recess to the length direction of the horizontal member, substantially by increasing the load resistance against the load in the vertical direction. Through experiments, we have gained knowledge about increasing the load by reducing the load transmitted as a vertical component in the vertical direction. Therefore, in the case of a conventional horizontal member, the joint yield strength is substantially exhibited only by the bottom surface portion that receives the vertical component, and the side surface portion of the joint recess has a horizontal component in the length direction of the horizontal member. It was found that they were not transmitted and did not demonstrate their strength. Therefore, in the horizontal member of the present invention, a taper is applied to the bottom surface part in which a load in the vertical direction is substantially transmitted as a horizontal component in the length direction of the horizontal member by the arch-shaped curved surface of the joint recess. The side portion with which it is held also transmits a load in the vertical direction substantially as a horizontal component in the length direction of the horizontal member, so that it is possible to exhibit joint strength. For this reason, it is possible to ensure a high joint strength as compared with the conventional horizontal member.
なお、大入れの側面部の構成に関しては、テーパーが設けられていない部分とテーパーが設けられている部分を備えたものとすることができる。大入れの側面をすべてテーパー面とすると大入れの断面積が過度に小さくなってしまい仕口耐力の低下を招いてしまうことがあるため、ある程度大入れの断面積を確保したいところである。この場合、大入れの側面の上部を垂直にしておき、大入れの側面途中付近からテーパー付けを開始すれば、大入れの断面積が過度に小さくなるという問題を回避することができる。
また、大入れの側面の上部の少なくとも一部を垂直にしておけば、施工時において仕口凸部を仕口凹部へと嵌合させる際に垂直部が道案内となり、円滑かつ高精度な施工が可能になる。
In addition, about the structure of the large side surface part, it can be provided with the part in which the taper is not provided, and the part in which the taper is provided. If the side surfaces of the large pockets are all tapered, the cross sectional area of the large pockets may become excessively small, leading to a decrease in joint yield strength. Therefore, it is desired to secure a large cross sectional area to some extent. In this case, the problem that the cross-sectional area of the large pocket becomes excessively small can be avoided by keeping the upper portion of the large pocket side face vertical and starting the tapering from the middle of the large pocket side surface.
In addition, if at least a part of the upper part of the side of the large wall is made vertical, the vertical part will become a road guide when fitting the joint convex part into the joint concave part during construction, and smooth and highly accurate construction Is possible.
次に、蟻に関しても、矩形とすることもできれば、大入れと同様、蟻の左右の側面部の少なくとも一部において、底面に向かうほど相互の対向距離が小さくなるようにテーパーを設けることも好ましい。   Next, regarding the ant, if it can be rectangular, it is also preferable to provide a taper so that the opposing distance becomes smaller toward the bottom surface in at least a part of the left and right side surfaces of the ant, as in the case of large insertion. .
また、大入れと同様、蟻の側面部の下端同士をつなぐ底面の加圧面に関しては、水平にすることもできれば、アーチ状の曲面とすることもできる。
また、大入れと同様、蟻の側面部におけるテーパーの垂直に対する角度の範囲として、横架材の幅や高さに応じて0度より大きく40度までの角度に調整せしめることが好ましい。より好ましくは、テーパー角度の範囲が4度から14度であれば仕口耐力が効果的に大きく向上できる。
Further, as in the case of the large insertion, the pressure surface on the bottom surface connecting the lower ends of the side surfaces of the ants can be horizontal or can be an arch-shaped curved surface.
Further, as in the case of large insertion, it is preferable that the angle range of the taper on the side surface portion of the ant is adjusted to an angle greater than 0 degree and up to 40 degrees according to the width and height of the horizontal member. More preferably, when the range of the taper angle is 4 degrees to 14 degrees, the joint yield strength can be effectively improved.
上記に示したように、本発明の横架材では、大入れのみならず、蟻にもテーパーを設ける構成とすることがあり得るが、両者のテーパーの垂直に対する角度のバランスについて調整することも可能である。例えば、大入れの側面部におけるテーパーの垂直に対する角度と、蟻の側面部におけるテーパーの垂直に対する角度を異なるものとし、大入れの側面部におけるテーパーの垂直に対する角度の方が蟻の側面部におけるテーパーの垂直に対する角度より大きいものとすることができる。   As shown above, in the horizontal member of the present invention, it is possible to have not only a large insertion but also a configuration in which a taper is provided on the ant, but it is also possible to adjust the balance of the angles of both tapers with respect to the vertical. Is possible. For example, the angle of the taper on the side surface of the fold is different from the angle of the taper on the side surface of the ant, and the angle of the taper on the side surface of the fold is different from the taper on the side surface of the ant. Can be greater than the angle to the vertical.
このように、大入れの側面部におけるテーパーの垂直に対する角度の方が蟻の側面部におけるテーパーの垂直に対する角度より大きいものとすることにより、過度に蟻にテンションがかかることを回避し、仕口耐力の大きな大入れの方により大きな負荷を担わせ、蟻の方に担わせる負荷を相対的に小さく抑えることができる。   In this way, the angle of the taper at the side of the large insertion portion with respect to the perpendicular of the taper is greater than the angle of the taper at the side of the ant is greater than the angle of the taper at the side of the ant, thereby avoiding excessive tension on the ant. A large load can be applied to the large proof load, and the load applied to the ant can be kept relatively small.
なお、仕口凹部における受け残り部の距離は50mm以上確保せしめることが好ましい。ある程度仕口凹部における受け残り部の長さが確保されれば、大入れを受ける仕口凹部の底面部に割れが生じにくくなり、仕口耐力が向上するというメリットが得られるだけでなく、仕口凹部を備えた横架材の断面欠損が少なくなり、曲げ耐力が向上するというメリットも得られる。   In addition, it is preferable to ensure the distance of the receiving remaining part in a joint recessed part 50 mm or more. If the length of the receiving remaining portion in the recess is secured to a certain extent, not only is the bottom surface of the recess receiving a large insertion difficult to crack, and not only can the merit of improving the yield strength be obtained, The cross-sectional defect | deletion of the horizontal member provided with the opening | mouth recessed part decreases, and the merit that bending strength improves is also acquired.
次に、横架材の丸太からの採取部位に関しては、蟻の底面の加圧面が木材の髄付近の部位となるように横架材を切削して形成せしめることが好ましい。
スギ材の髄付近はめり込み強度が比較的に大きいが、この木材の髄付近を加圧面、支圧面となるように木材を切削加工して形成すれば仕口耐力を向上せしめることができる。
Next, it is preferable to form the horizontal member by cutting the horizontal member so that the pressure surface of the bottom surface of the ant becomes a region near the pith of the wood.
The penetration strength of the cedar wood is relatively high, but if the wood is formed by cutting the wood so that it becomes a pressure surface and a bearing surface, the joint strength can be improved.
次に、仕口凸部を持つ横架材の高さの方が仕口凹部を持つ横架材の高さよりも高い場合の工夫について述べる。このように横架材の高さが合わないことは現実の建築設計では起こり得るが、その際にも本発明のテーパー加工された仕口を備えた横架材の適用を可能とするものである。   Next, the device when the height of the horizontal member having the joint convex part is higher than the height of the horizontal member having the joint concave part will be described. In this way, the height of the horizontal member does not match, but it can occur in actual building design, but also at that time, it is possible to apply the horizontal member with the tapered joint of the present invention. is there.
第1の構造は、柱材を利用した柱持たせ構造である。
仕口凹部の直下に柱材を建てた構造とし、前記柱材の上部において、前記仕口凸部の下部を受け入れる柱持たせ仕口凹部を備え、前記仕口凹部を持つ前記横架材と前記柱材の前記柱持たせ仕口凹部により構成される合成凹部に対して、前記仕口凸部を組み合わせることを特徴とするものである。
The first structure is a structure having a pillar using a pillar material.
A structure in which a pillar material is built immediately below a joint recess, and a column member is provided in the upper part of the pillar material to receive a lower portion of the joint projection, and the horizontal member having the joint recess is provided. The above-mentioned projection convex part is combined with the synthetic concave part constituted by the above-mentioned pillar holding concave part of the column material.
第2の構造は、仕口凹部を持つ横架材の下方に補助となる合わせ横架材を併設した構造である。
仕口凹部を持つ横架材の下方に補助となる合わせ横架材を併設し、前記合わせ横架材の上部において、前記仕口凸部の下部を受け入れる合わせ仕口凹部を備え、前記仕口凹部を持つ前記横架材と前記合わせ横架材の前記合わせ仕口凹部により構成される合成凹部に対して、前記仕口凸部を組み合わせることを特徴とするものである。
これらの構造により、仕口凸部を持つ横架材の高さの方が仕口凹部を持つ横架材の高さよりも高い場合であっても、柱材や合わせ横架材を組み合わせて仕口凹部を持つ横架材の高さを確保せしめ、それら柱材や合わせ横架材側にも仕口凹部の一部を作り込むことで、全体として仕口凸部を受け入れて支持するものである。
The second structure is a structure in which an auxiliary horizontal member is provided below the horizontal member having a recess.
An auxiliary mating horizontal member is provided below the horizontal member having a joint recess, and an upper part of the horizontal member is provided with a mating recess for receiving the lower part of the joint convex part. The joint projection is combined with the synthetic recess formed by the horizontal member having a recess and the mating joint recess of the mating horizontal member.
With these structures, even when the height of the horizontal member with the joint convex part is higher than the height of the horizontal member with the joint concave part, it can be finished by combining the column material and the matching horizontal member. By securing the height of the horizontal member with the mouth recess, and by making a part of the joint recess also on the side of the pillar material and the combined horizontal member, it accepts and supports the joint protrusion as a whole. is there.
次に、本発明の横架材を製作する方法は、接合箇所となる仕口凸部において大入れと蟻が形成され、仕口凹部において大入れ蟻掛けが形成されている横架材を製作する方法であって、前記仕口凸部における前記大入れを切削する刃の進行軌跡が、前記横架材の端面の左右一方から内部に進行させ、前記大入れの左右一方の側面を切削した後、再び前記横架材の端面の左右他方に向けて進行させ、前記大入れの左右他方の側面を切削して前記横架材の端面の左右他方へ至る軌跡であり、前記仕口凸部における前記蟻を切削する刃の進行軌跡が、前記横架材の端面の左右一方から内部に進行させ、前記蟻の左右一方の側面を切削した後、再び前記横架材の端面の左右他方に向けて進行させ、前記蟻の左右他方の側面を切削して前記横架材の端面の左右他方へ至る軌跡であり、前記仕口凸部における前記大入れを切削する刃の進行軌跡が、前記大入れがテーパーを持つように切削する軌跡であり、前記大入れの左右の側面部の少なくとも一部において、底面に向かうほど相互の対向距離が小さくなるように前記テーパーを付けるものであることを特徴とする。
つまり、いわゆるV字のような軌跡を描かせることによりテーパーを取るものである。
蟻に関しては、いわゆる矩形のものとすることもできる。また、大入れと同じく蟻についてもV字型の軌跡を描かせることによりテーパーを取ることができる。
Next, the method of manufacturing the horizontal member of the present invention is to manufacture a horizontal member in which a large insert and an ant are formed at the joint convex portion to be a joint, and a large dovetail is formed at the joint concave portion. And a trajectory of a blade that cuts the large insert at the joint convex portion is advanced from the left or right side of the end face of the horizontal member to the inside, and the left and right side surfaces of the large insert are cut. Then, it is a trajectory that advances again toward the left and right other side of the end surface of the horizontal member, cuts the other side of the left and right sides of the insert, and reaches the left and right other of the end surface of the horizontal member, The trajectory of the blade that cuts the ants in this state advances from the left and right sides of the end surface of the horizontal member to the inside, cuts the left and right sides of the ant, and then again moves to the other left and right side of the end surface of the horizontal member. And cut the other side of the right and left sides of the ant A trajectory leading to the other right side, a progress trajectory of the blade that cuts the large insertion at the joint convex portion is a trajectory cutting so that the large insertion has a taper, and left and right side portions of the insertion At least in part, the taper is provided so that the facing distance becomes smaller toward the bottom surface.
That is, a taper is taken by drawing a locus like a so-called V-shape.
Regarding the ants, so-called rectangular ones can also be used. In addition, the ant can be tapered by drawing a V-shaped locus as in the case of the large insertion.
なお、大入れを切削する刃と蟻を切削する刃の動きの制御における工夫について述べる。   In addition, the device in control of the movement of the blade which cuts a large insert and the blade which cuts an ant is described.
第1の工夫は、仕口凸部における大入れを切削する刃の進行と蟻を切削する刃の進行を逐次進行とする工夫である。蟻を切削する刃の進行が終了してから大入れを切削する刃の進行が開始する。いわゆる2ストロークで切削する方法である。   The first contrivance is a contrivance in which the progress of the blade that cuts the large insertion at the joint convex portion and the progress of the blade that cuts the ant are sequentially advanced. After the progress of the blade for cutting the ant is finished, the progress of the blade for cutting the large insert is started. This is a so-called two-stroke cutting method.
第2の工夫は、仕口凸部における大入れを切削する刃の進行と蟻を切削する刃の進行を時間差進行とする工夫である。つまり、蟻を切削する刃の進行が開始された後かつ終了するまでに、大入れを切削する刃の進行を開始する。従来のプレカット工法では、大入れを切削する刃の進行と蟻を切削する刃の進行に時間差を持たせて切削する技術は知られていない。時間差を持たせることにより、2ストロークよりも切削加工時間を短縮することができる一方、大入れを切削する刃の進行軌跡と蟻を切削する刃の進行軌跡が干渉し合う場合でも、時間差を設けて運行するため、両者が衝突するような不具合がなくなる。   The second contrivance is a contrivance in which the progression of the blade that cuts the large insertion in the convex portion of the joint and the progression of the blade that cuts the ant are time difference progression. In other words, after the start of the blade that cuts the ant starts and ends, the progress of the blade that cuts the large insert starts. In the conventional precut method, there is no known technique for cutting with a time difference between the progress of the blade for cutting the large insert and the progress of the blade for cutting the ant. By giving a time difference, the cutting time can be shortened by more than two strokes. On the other hand, even when the progress trajectory of the blade for cutting a large insert interferes with the progress trajectory of a blade for cutting an ant, a time difference is provided. The problem of collision between the two is eliminated.
第3の工夫は、仕口凸部における大入れを切削する刃の進行と蟻を切削する刃の進行を同時進行とする工夫である。つまり、蟻を切削する刃の進行が開始されると大入れを切削する刃の進行も同時に開始する。いわゆる1ストロークで複雑な仕口を製作するものである。従来のプレカット工法では、大入れを切削する刃の進行と蟻を切削する刃の進行に時間差を持たせて切削する技術は知られていない。特に、大入れの形状がテーパーを備え、蟻が矩形である組み合わせにおいては、大入れを切削する刃の進行軌跡と蟻を切削する刃の進行軌跡は相互に独立したものであり、2つの独立した軌跡を持つ切削刃を同時に稼働する考え方は従来技術にはなかった。また、時間としても1ストロークで切削加工が完了するので短縮することができる。   The third device is a device in which the progress of the blade that cuts the large insertion at the joint convex portion and the progress of the blade that cuts the ant are simultaneously advanced. That is, when the progress of the blade for cutting ants is started, the progress of the blade for cutting the large insert is also started at the same time. A complicated joint is produced with a so-called one stroke. In the conventional precut method, there is no known technique for cutting with a time difference between the progress of the blade for cutting the large insert and the progress of the blade for cutting the ant. In particular, in the combination in which the shape of the large insert has a taper and the ant is rectangular, the traveling locus of the blade that cuts the large insert and the traveling locus of the blade that cuts the ant are independent of each other. There was no idea in the prior art to simultaneously operate cutting blades with the same trajectory. Also, the time can be shortened because the cutting process is completed in one stroke.
次に、本発明の横架材を受ける受け材の製作方法は、接合箇所となる仕口凸部において大入れと蟻が形成され、仕口凹部において大入れ蟻掛けが形成されている横架材を製作する方法であって、前記仕口凹部における前記大入れ蟻掛けのうち前記大入れを受ける凹部を切削する刃の進行軌跡が、前記横架材の端面から内部に進行させ、前記大入れを受ける凹部の左右一方の側面を切削した後、再び前記端面に向けて進行させ、前記大入れを受ける凹部の左右他方の側面を切削して前記端面へ至る軌跡であり、前記仕口凹部における前記大入れ蟻掛けのうち前記蟻を受け入れる凹部を切削する刃の進行軌跡が、前記端面から内部に進行させ、前記蟻を受ける凹部の左右一方の側面を切削した後、再び前記端面に向けて進行させ、前記蟻を受ける凹部の左右他方の側面を切削して前記横架材の前記端面へ至る軌跡であり、前記仕口凹部における前記大入れを受ける凹部を切削する刃の進行軌跡が、テーパーを持つように前記大入れを受ける凹部を切削する軌跡であり、前記大入れを受ける凹部の左右の側面部の少なくとも一部において、底面に向かうほど相互の対向距離が小さくなるように前記テーパーを付けるものであることを特徴とするテーパーを備えた横架材のプレカット方法である。
なお、上記のプレカット工法において、前記テーパーを持つように前記大入れを受ける凹部を切削する軌跡において削り残った中央側の未切削部分を、後続の前記蟻を受け入れる凹部を切削する刃の進行軌跡において、同時に切削してしまうことが好ましい。そうすれば、横架材のプレカットの加工時間が短くなり、量産化に向けて有利になる。
Next, the manufacturing method of the receiving material which receives the horizontal member of the present invention is a horizontal method in which a large dovetail and an ant are formed at a joint convex part which is a joint location, and a large dovetail hook is formed at a joint concave part. In the method of manufacturing a material, a traveling trajectory of a blade that cuts a recess that receives the large insertion of the large dovetail in the joint recess advances from an end surface of the horizontal member to the inside, and the large The left and right side surfaces of the recess receiving the recess are cut and then moved again toward the end surface, and the left and right side surfaces of the recess receiving the large insertion are cut to reach the end surface. In the large dovetail, the trajectory of the blade that cuts the recess for receiving the ant is advanced from the end surface to the inside, and after cutting one of the left and right side surfaces of the recess to receive the ant, it is directed to the end surface again. And proceed with the ant A trajectory leading to the end face of the horizontal member by cutting the left and right side surfaces of the part, and the traveling trajectory of the blade that cuts the recess receiving the large insertion in the joint recess has a taper. It is a trajectory for cutting a recess that receives insertion, and at least a part of the left and right side surface portions of the recess that receives insertion, the taper is applied so that the opposing distance decreases toward the bottom surface. It is the precut method of the horizontal member provided with the taper characterized.
In the above pre-cut method, the trajectory of the blade that cuts the uncut portion on the central side left uncut in the trajectory for cutting the concave portion receiving the large insertion so as to have the taper, and the concave portion for receiving the subsequent dovetail. It is preferable to cut at the same time. If it does so, the processing time of the precut of a horizontal member will become short, and it will become advantageous toward mass production.
蟻を受ける凹部に関しては、蟻に合わせていわゆる矩形のものを組み合わせることができる。矩形の蟻を受ける凹部を形成する場合は、前記蟻を受け入れる凹部を切削する刃の前記横架材の端面から内部に進行させる軌跡が略垂直であり、再び前記横架材の端面へ進行させる軌跡も略垂直とすれば良い。   As for the recess for receiving the ant, a so-called rectangular object can be combined with the ant. When forming a concave portion that receives a rectangular ant, the trajectory of the blade that cuts the concave portion that receives the ant from the end surface of the horizontal member to the inside is substantially vertical, and again advances to the end surface of the horizontal member. The trajectory may be substantially vertical.
蟻を受ける凹部に関しても、大入れを受ける凹部と同様、その刃の進行軌跡をV字型にすることができる。その場合、蟻を受ける凹部を切削する刃の進行軌跡が、テーパーを持つように蟻を受ける凹部を切削する軌跡であり、蟻を受ける凹部の左右の側面部の少なくとも一部において、底面に向かうほど相互の対向距離が小さくなるようにテーパーを付けるものとすれば良い。   As for the concave portion that receives the ant, the traveling trajectory of the blade can be made V-shaped in the same manner as the concave portion that receives the large insertion. In that case, the progress trajectory of the blade that cuts the recess receiving the ant is the trajectory that cuts the recess receiving the ant so as to have a taper, and at least part of the left and right side portions of the recess receiving the ant is directed to the bottom surface. It suffices to taper so that the mutual facing distance becomes smaller.
なお、大入れを受ける凹部を切削する刃と蟻を受ける凹部を切削する刃の動きの制御における工夫について述べる。   In addition, the device in control of the motion of the blade which cuts the recessed part which receives a large insertion, and the blade which cuts the recessed part which receives an ant is described.
第1の工夫は、前記仕口凹部における大入れを受ける凹部を切削する刃の進行と前記蟻を受ける凹部を切削する刃の進行が逐次進行とするものである。いわゆる2ストロークで切削する工夫である。つまり、前記大入れを受ける凹部を切削する刃の進行が終了してから前記蟻を受ける凹部を切削する刃の進行を開始する。   In the first device, the progress of the blade that cuts the recess receiving the large insertion in the recess of the joint and the progress of the blade cutting the recess receiving the dovetail are sequentially advanced. It is a device that cuts in two strokes. That is, after the progress of the blade that cuts the recess receiving the large insertion is finished, the blade starting the cutting of the recess receiving the dovetail is started.
第2の工夫は、前記仕口凹部における大入れを受ける凹部を切削する刃の進行と蟻を受ける凹部を切削する刃の進行を時間差進行とするものである。つまり、前記大入れを受ける凹部を切削する刃の進行が開始された後かつ終了するまでに、前記蟻を受ける凹部を切削する刃の進行を開始する。従来のプレカット工法では、前記大入れを受ける凹部を切削する刃の進行と前記蟻を受ける凹部を切削する刃の進行に時間差を持たせて切削する技術は知られていない。時間差を持たせることにより、2ストロークよりも切削加工時間を短縮することができる一方、大入れを受ける凹部を切削する刃の進行軌跡と蟻を受ける凹部を切削する刃の進行軌跡が干渉し合う場合でも、時間差を設けて運行するため、両者が衝突するような不具合がなくなる。   In the second device, the progress of the blade that cuts the concave portion that receives the large insertion in the concave portion of the joint and the progress of the blade that cuts the concave portion that receives the dovetail are set as time difference progression. In other words, the progress of the blade for cutting the recess receiving the ant is started after the start of the progress of the blade for cutting the recess receiving the large insertion is completed. In the conventional precut method, there is no known technique for cutting with a time difference between the progress of the blade that cuts the recess receiving the large insertion and the progress of the blade that cuts the recess receiving the dovetail. By giving a time difference, the cutting time can be shortened more than two strokes, while the progress trajectory of the blade that cuts the recess receiving the large insertion and the progress trajectory of the blade cutting the recess receiving the dove interfere with each other. Even in this case, since the operation is performed with a time difference, there is no problem that the two collide.
第3の工夫は、前記仕口凹部における前記大入れを受ける凹部を切削する刃の進行と前記蟻を受ける凹部を切削する刃の進行が同時進行とするものである。つまり、前記大入れを受ける凹部を切削する刃の進行が開始されると、前記蟻を受ける凹部を切削する刃の進行も同時に開始する。いわゆる1ストロークで複雑な受け材を製作するものである。従来のプレカット工法では、大入れを受ける凹部を切削する刃の進行と蟻を受ける凹部を切削する刃の進行に時間差を持たせて切削する技術は知られていない。特に、大入れを受ける凹部の形状がテーパーを備え、蟻を受ける凹部が矩形である組み合わせにおいては、大入れを受ける凹部を切削する刃の進行軌跡と蟻を受ける凹部を切削する刃の進行軌跡は相互に独立したものであり、2つの独立した軌跡を持つ切削刃を同時に稼働する考え方は従来技術にはなかった。また、時間としても1ストロークで切削加工が完了するので短縮することができる。   In the third device, the progress of the blade that cuts the concave portion that receives the large insertion in the concave portion of the joint and the progress of the blade that cuts the concave portion that receives the ant are simultaneously advanced. That is, when the progress of the blade for cutting the recess receiving the large insertion is started, the progress of the blade for cutting the recess receiving the dove starts simultaneously. A complicated receiving material is manufactured in one stroke. In the conventional precut method, there is no known technique for cutting with a time difference between the progress of the blade that cuts the recess receiving the large insertion and the progress of the blade cutting the recess receiving the dovetail. In particular, in a combination in which the shape of the recess receiving the dovetail is tapered and the recess receiving the dove is rectangular, the trajectory of the blade cutting the recess receiving the dovetail and the progress trajectory of the blade cutting the recess receiving the dovetail Are independent of each other, and the prior art has no idea of simultaneously operating two cutting blades having independent trajectories. Also, the time can be shortened because the cutting process is completed in one stroke.
本発明のテーパー加工された仕口を備えた横架材によれば、横架材において前記仕口凹部のアーチ状の曲面により実質的に鉛直方向の負荷を横架材の長さ方向へと水平成分として伝達せしめた底面部に加え、テーパーを持った側面部も実質的に鉛直方向の負荷を横架材の長さ方向へと水平成分として伝達せしめる負荷を増大せしめ、前記仕口凹部の鉛直方向へと垂直成分として伝達する負荷を低減せしめており、仕口耐力を従来の横架材に比べて大きく確保することができる。
本発明の横架材の製作方法によれば、大入れにテーパーを持った側面部を作り込む切削において、大入れを切削する刃の進行軌跡にテーパーを付けることにより大入れにテーパーを持たせることができる。なお、切削加工の制御において、大入れを切削する刃の進行と蟻を切削する刃の進行を逐次進行とする工夫、大入れを切削する刃の進行と蟻を切削する刃の進行を時間差進行とする工夫、大入れを切削する刃の進行と蟻を切削する刃の進行を同時進行とする工夫などがあり、大入れを切削する刃の進行軌跡と蟻を切削する刃の進行軌跡が干渉し合わないように調整することができる。
According to the horizontal member having a tapered joint according to the present invention, a load in the vertical direction is substantially extended in the length direction of the horizontal member by the arch-shaped curved surface of the joint recess in the horizontal member. In addition to the bottom surface transmitted as the horizontal component, the tapered side surface also increases the load that transmits the vertical load as the horizontal component in the length direction of the horizontal member. The load transmitted as a vertical component in the vertical direction is reduced, and the joint strength can be ensured larger than that of the conventional horizontal member.
According to the manufacturing method of the horizontal member of the present invention, in cutting to make a side portion having a taper in the large insert, the taper is given to the large insert by tapering the trajectory of the blade that cuts the large insert. be able to. In addition, in cutting control, a device that sequentially advances the progress of the blade for cutting the large insert and the progress of the blade for cutting the ant, the time progression of the progress of the blade for cutting the large insert and the progress of the blade for cutting the ant There is also a contrivance such as the progress of the blade that cuts the large insert and the progress of the blade that cuts the ant at the same time, and the progress locus of the blade that cuts the large insert interferes with the progress locus of the blade that cuts the ant It can be adjusted so that it does not fit.
以下、図面を参照しつつ、本発明のテーパー加工された仕口を備えた横架材、並びに、その横架材を加工するプレカット方法の実施例を説明する。ただし、本発明の範囲は以下の実施例に示した具体的な用途、形状、個数などには限定されないことは言うまでもない。   Hereinafter, embodiments of a horizontal member provided with a tapered joint according to the present invention and a precut method for processing the horizontal member will be described with reference to the drawings. However, it goes without saying that the scope of the present invention is not limited to the specific application, shape, number, etc. shown in the following examples.
図1は、本実施例1に示す横架材100の構成を模式的に示した構成図である。
本実施例1に示す横架材100は、仕口凸部110、仕口凸部の大入れ120、仕口凸部の蟻130、仕口凹部140、仕口凹部の大入れ蟻掛け(150、160)、受け残り部170を備えた構成となっている。
FIG. 1 is a configuration diagram schematically showing the configuration of the horizontal member 100 shown in the first embodiment.
The horizontal member 100 shown in the first embodiment includes a joint convex part 110, a joint convex part insertion 120, a joint convex part ant 130, a joint concave part 140, a joint concave part large dovetail (150 160), and the remaining portion 170 is provided.
仕口凸部110は、横架材100における接合箇所となる凸形状部分であり、後述する仕口凹部140と嵌合し合うことにより横架材100同士が接合するものとなっている。図1に示すように、仕口凸部110には、大入れ120と蟻130が設けられている。   The joint convex part 110 is a convex-shaped part used as the joining location in the horizontal member 100, and the horizontal members 100 are joined by fitting with the joint concave part 140 mentioned later. As shown in FIG. 1, the fitting convex portion 110 is provided with a large case 120 and an ant 130.
仕口凸部の大入れ120は、後述する仕口凹部140の大入れ蟻掛けの一部の窪み150と嵌合して接合する部分であり、上下方向に嵌合することにより、主に上下方向の荷重を支える役割を果たす部分である。大入れ120には、左右の側面部121と底面部122がある。   The fitting convex portion 120 is a portion that is fitted and joined to a recess 150 of a large dovetail of the fitting concave portion 140, which will be described later. It is the part that plays the role of supporting the load in the direction. The closet 120 has left and right side surfaces 121 and a bottom surface 122.
本発明の横架材100では、大入れ120の左右の側面部121の少なくとも一部において、底面に向かうほど相互の対向距離が小さくなるようにテーパーが設けられている点が大きな特徴である。図1に示した構成例は、大入れ120の左右の側面部121全体が一様なテーパーとなっている例である。この大入れ120の左右の側面部121にテーパーを持たせる効果は詳しくは後述するが、大入れ120の側面部分にテーパーを持たせることにより横架材100の仕口耐力を向上させることができる。
横架材において仕口凸部を下から見上げた時の嵌合面を見付け面というが、通常の矩形型の大入れであれば水平な底面部分のみが見付け面となるが、本発明の横架材100では大入れの底面部122のみならず側面部121もテーパーを持つことにより、鉛直方向の負荷を担っているため、側面部121と底面部122とも見付け面となる。
The horizontal member 100 according to the present invention is characterized in that at least a part of the left and right side surface portions 121 of the large case 120 is tapered so that the opposing distance decreases toward the bottom surface. The configuration example shown in FIG. 1 is an example in which the entire left and right side surfaces 121 of the large case 120 are uniformly tapered. The effect of tapering the left and right side surfaces 121 of the large case 120 will be described in detail later. However, by providing the side surface portion of the large case 120 with a taper, the joint strength of the horizontal member 100 can be improved. .
In the horizontal frame, the fitting surface when the joint convex portion is looked up from the bottom is called the finding surface.If the normal rectangular type is inserted, only the horizontal bottom surface portion becomes the finding surface. In the base material 100, not only the large bottom surface portion 122 but also the side surface portion 121 has a taper, and thus bears a load in the vertical direction. Therefore, both the side surface portion 121 and the bottom surface portion 122 are found.
仕口凸部の蟻130は、後述する仕口凹部140の大入れ蟻掛けの一部の窪み160と嵌合して接合する部分であり、上下方向のみならず、水平方向に楔のように噛み合っており、上方に造作される建築構造物の荷重を支える役割を果たすとともに、横架材100同士が水平方向に離反しないように両者を密着させる役割も果たす部分である。仕口凸部の蟻130には、左右の側面部131と底面部132がある。   The boss 130 of the projection convex part is a part that fits and joins with a dent 160 that is a part of the large dovetail of the joint recess 140, which will be described later, like a wedge in the horizontal direction as well as the vertical direction. It is a portion that meshes and plays a role of supporting the load of the building structure that is made upward, and also plays a role of bringing the horizontal members 100 into close contact with each other so as not to separate in the horizontal direction. The ant 130 of the convex protrusion has left and right side portions 131 and a bottom portion 132.
なお、仕口凸部の蟻130についても、その左右の側面部131の少なくとも一部において、底面に向かうほど相互の対向距離が小さくなるようにテーパーを設けることができるが、その構成例は、実施例2で述べることとする。本実施例1では、図1に示すように、仕口凸部の蟻130の断面形状は矩形となっている例とする。   In addition, for the ant 130 of the projection convex portion, at least a part of the left and right side surface portions 131 can be provided with a taper so that the mutual facing distance becomes smaller toward the bottom surface. It will be described in the second embodiment. In the first embodiment, as shown in FIG. 1, the cross-sectional shape of the ant 130 of the projection convex portion is a rectangle.
ここで、仕口凸部110の蟻130は水平方向(奥行き方向)には、仕口凹部140の大入れ蟻掛けの窪み160に対して楔のように入り込むため、図1に示すように、水平方向(奥行き方向)には楔状にテーパーが設けられている。   Here, since the ant 130 of the joint convex part 110 enters in the horizontal direction (depth direction) like a wedge into the large dovetail recess 160 of the joint concave part 140, as shown in FIG. In the horizontal direction (depth direction), a tapered taper is provided.
次に、仕口凸部110をとる木材の部位について述べておく。
仕口凸部110は、以上のように大入れ120と蟻130を備えた構造となっているが、木材の丸太からの採取部位において、蟻130の底面の加圧面が木材の髄付近の部位となるように仕口凸部110をとるように切削して横架材100を形成することが好ましい。このように木材の部位において仕口凸部110をとれば、蟻130の底面の加圧面がちょうど木材の髄付近の部位により形成されることとなる。
Next, the part of the wood which takes the joint convex part 110 is described.
The projection 110 has a structure including the large case 120 and the ant 130 as described above, but in the sampling part from the log of the wood, the pressure surface on the bottom surface of the ant 130 is the part near the pith of the wood. It is preferable that the horizontal member 100 is formed by cutting so as to take the joint protrusion 110. Thus, if the joint convex part 110 is taken in the site | part of a timber, the pressurization surface of the bottom face of the ant 130 will be formed just by the site | part of the medullary vicinity of a timber.
その理由は次の通りである。木材は部位によって構造的強度が異なる。スギ材の髄付近はもっとも密度が大きく、めり込み強度が大きい。スギ材は髄から周囲へ向かうほど密度が徐々に低下してゆきめり込み強度が小さくなる性質がある。横架材100の仕口凸部110において圧力がかかる部位は見付け面である。本構成例の横架材の仕口凸部110の見付け面は、大入れ120の側面部121、大入れ120の底面部122、蟻130の底面部132である。ここで、木材の太さを考慮すると、木材の髄が大入れ120の底面部122となるように木材を加工するためには、少なくとも大入れ120の高さが十分取れる半径を持つ丸太を使用しなければならない。太く大きな木材は調達が容易ではなく価格も高くなってしまう。ここで、木材の髄が蟻130の底面部132となるように木材を加工するためには、少なくとも大入れ120上面から蟻130の底面までの高さが十分取れる半径を持つ丸太でまかなうことができる。比較的に細い木材を使用できるため調達が比較的容易で価格も比較的安く済ませることが可能となる。   The reason is as follows. Wood has different structural strength depending on the part. The density near the pith of cedar is the highest, and the penetration strength is high. The cedar wood has the property that the density gradually decreases from the spinal cord to the periphery, and the strength decreases. The part to which pressure is applied in the joint projection 110 of the horizontal member 100 is a finding surface. The finding surfaces of the joint projection 110 of the horizontal member of this configuration example are the side surface portion 121 of the large case 120, the bottom surface portion 122 of the large case 120, and the bottom surface portion 132 of the ant 130. Here, in consideration of the thickness of the wood, in order to process the wood so that the pith of the wood becomes the bottom surface portion 122 of the large case 120, a log having a radius at which the height of the large case 120 can be sufficiently taken is used. Must. Thicker and large timber is not easy to procure and is expensive. Here, in order to process the wood so that the pith of the wood becomes the bottom surface portion 132 of the ant 130, it is possible to cover at least a log having a radius that allows a sufficient height from the top surface of the large insert 120 to the bottom surface of the ant 130. it can. Since relatively thin wood can be used, procurement is relatively easy and the price can be relatively low.
次に、仕口凹部140は、横架材100における接合箇所となる凹形状部分であり、前述した仕口凸部110と嵌合し合って接合するものとなっている。仕口凹部140には、仕口凸部110の大入れ120および蟻130それぞれの形状に対応するように、仕口凹部の大入れ蟻掛け(窪み150、窪み160)が設けられている。   Next, the joint recess 140 is a concave portion that becomes a joint in the horizontal member 100, and is fitted and joined to the joint convex 110 described above. The fitting recess 140 is provided with a dovetail insertion dovetail (depression 150, depression 160) corresponding to the shapes of the insertion slot 120 and ant 130 of the projection protrusion 110, respectively.
仕口凹部140の大入れ蟻掛けには、仕口凸部110の大入れ120に対応する窪み150および蟻130に対応する窪み160を備えたものとなっている。   The large dovetail of the joint recess 140 includes a recess 150 corresponding to the insert 120 of the joint protrusion 110 and a recess 160 corresponding to the ant 130.
窪み150は、仕口凸部110の大入れ120を受け入れる窪みであり、仕口凸部110の大入れ120に対応した形状となっている。仕口凸部110の大入れ120の側面部121に対応する側面部151があり、仕口凸部110の大入れ120の底面部122に対応して底面部152が設けられている。図1に示すように、この構成例では窪み150の側面部151にはテーパーが設けられている点が大きな特徴である。つまり、窪み150の側面部分151にはテーパーが設けられて、鉛直方向の負荷を横架材の長さ方向へと水平成分として分散させ、垂直成分として伝達する負荷を低減させ、仕口耐力の増大に貢献している。この仕口凸部110の大入れ120と仕口凹部140の窪み150の嵌合により鉛直方向の荷重を支える効果が得られる。   The recess 150 is a recess that receives the insertion 120 of the joint protrusion 110, and has a shape corresponding to the insertion 120 of the connection protrusion 110. There is a side surface portion 151 corresponding to the side surface portion 121 of the large slot 120 of the joint convex portion 110, and a bottom surface portion 152 is provided corresponding to the bottom surface portion 122 of the large slot 120 of the joint convex portion 110. As shown in FIG. 1, this configuration example is characterized in that a taper is provided on the side surface portion 151 of the recess 150. In other words, the side surface portion 151 of the recess 150 is tapered so that the load in the vertical direction is distributed as a horizontal component in the length direction of the horizontal member, and the load transmitted as the vertical component is reduced. Contributing to the increase. The effect of supporting the load in the vertical direction is obtained by fitting the large slot 120 of the joint protrusion 110 and the recess 150 of the joint recess 140.
窪み160は、仕口凸部110の蟻130を受け入れる窪みであり、仕口凸部110の蟻130に対応した形状となっている。側面部161と底面部162を備えている。図1に示した構成例では、蟻130を垂直方向にとった断面形状は矩形であるので、窪み160を垂直方向にとった断面は矩形となっており、また、蟻130を水平方向(奥行き方向)にとった断面は楔形となっているので、窪み160を水平方向(奥行き方向)にとった断面は楔形を受け入れるほぞ形状となっている。
この仕口凸部110の蟻130と仕口凹部140の窪み160の嵌合により横架材100同士が水平方向(奥行き方向)に固定される効果が得られるとともに鉛直方向にも荷重を支える効果が得られる。
The depression 160 is a depression that receives the ant 130 of the joint convex portion 110, and has a shape corresponding to the ant 130 of the joint convex portion 110. A side surface portion 161 and a bottom surface portion 162 are provided. In the configuration example shown in FIG. 1, since the cross-sectional shape of the ant 130 taken in the vertical direction is a rectangle, the cross-section taken in the vertical direction of the depression 160 is rectangular, and the ant 130 is placed in the horizontal direction (depth Since the cross section taken in the direction) is wedge-shaped, the cross-section taken in the horizontal direction (depth direction) is the tenon shape that accepts the wedge shape.
By fitting the ant 130 of the joint convex part 110 and the recess 160 of the joint concave part 140, the effect of fixing the horizontal members 100 in the horizontal direction (depth direction) is obtained and the effect of supporting the load also in the vertical direction. Is obtained.
なお、仕口凹部140において仕口耐力を発揮する部分を支圧面と呼ぶが、従来の仕口凹部の大入れ蟻掛けは矩形をしており底面部のみが支圧面となるが、本発明の大入れ蟻掛けの窪み150にはテーパーが設けられているため、側面部151および底面部152ともに支圧面となる。また、窪み160の底面部162も支圧面となっている。窪み160の側面部にもテーパーを設ける構成例は実施例2において説明する。   The portion of the joint recess 140 that exhibits the joint yield strength is referred to as a bearing surface. However, the conventional dovetail of the joint recess has a rectangular shape and only the bottom portion serves as the bearing surface. Since the large dovetail recess 150 has a taper, both the side surface portion 151 and the bottom surface portion 152 serve as bearing surfaces. Further, the bottom portion 162 of the recess 160 is also a bearing surface. A configuration example in which a taper is also provided on the side surface of the depression 160 will be described in the second embodiment.
受け残り部170は、大入れ蟻掛けの支圧面から横架材の底面までの間の部分である。受け残り部170に余裕がなくなれば横架材100の構造強度が小さくなり仕口耐力が弱くなることからある程度の高さが必要となる。なお、本発明の横架材では大入れ120の側面部121、大入れ蟻掛けの窪み150の側面部151においてテーパーが設けられており、このテーパーの垂直に対する角度と、大入れ蟻掛けの窪み150の幅と、横架材100のもともとの高さによって受け残り部170の高さが変わるため、後述するように、側面部151においてテーパー付けを開始する高さを工夫するなどの余地がある。   The remaining portion 170 is a portion between the bearing surface of the large dovetail and the bottom surface of the horizontal member. If there is no room in the remaining portion 170, the structural strength of the horizontal member 100 is reduced and the joint strength is weakened, so that a certain height is required. In the horizontal member of the present invention, a taper is provided on the side surface portion 121 of the large case 120 and the side surface portion 151 of the large dovetail recess 150, and the angle of the taper with respect to the vertical and the large dovetail recess. Since the height of the remaining portion 170 changes depending on the width of 150 and the original height of the horizontal member 100, there is room for devising the height at which the side surface portion 151 starts tapering as described later. .
次に、上記構成を備えた本発明の横架材100の仕口凸部110と仕口凹部140を組み合わせた場合において、荷重に対する仕口耐力が向上する点について説明する。
上記したように、本発明の横架材100では、大入れ120の左右の側面部121の少なくとも一部と大入れ蟻掛けの窪み150の側面部151の少なくとも一部において、底面に向かうほど相互の対向距離が小さくなるようにテーパーを設けることにより仕口耐力を向上させている点が特徴である。
Next, a description will be given of the point that the joint yield strength with respect to the load is improved when the joint convex portion 110 and the joint concave portion 140 of the horizontal member 100 of the present invention having the above-described configuration are combined.
As described above, in the horizontal member 100 of the present invention, at least a part of the left and right side parts 121 of the case 120 and at least a part of the side part 151 of the dovetail recess 150 are closer to the bottom. It is characterized in that the joint yield strength is improved by providing a taper so that the facing distance of the nozzle becomes smaller.
図2および図3は、大入れ120の左右の側面部121と大入れ蟻掛けの窪み150の左右の側面部151のテーパーの効果を説明する図である。比較として、従来型の横架材の仕口凸部と仕口凹部の組み合わせとした場合における仕口耐力を併せて説明し、本発明の実施例1に係る横架材100の仕口凸部と仕口凹部の組み合わせとした場合における仕口耐力の向上について説明する。   2 and 3 are views for explaining the effect of the taper of the left and right side surface portions 121 of the large case 120 and the right and left side surface portions 151 of the large dovetail-shaped recess 150. As a comparison, the joint proof strength in the case of using a combination of the joint convex part and the joint concave part of the conventional horizontal member will be described together, and the joint convex part of the horizontal member 100 according to Example 1 of the present invention will be described. The improvement of the yield strength in the case of the combination of the joint recess and the joint recess will be described.
まず、図2(a)は、従来型の横架材の仕口凸部における矩形型の大入れの垂直断面をハッチングにて簡単に示したものとなっている。従来型の仕口凸部の大入れ120の垂直断面は矩形であるため、側面部は垂直となっており、底面部は水平となっている。図2(b)は、従来型の横架材の仕口凹部140における大入れ蟻掛けのうち大入れ120を受ける窪み150の垂直断面をハッチングにて簡単に示したものとなっている。
図2(c)は従来型の横架材の仕口凸部の大入れと、従来型の仕口凹部における大入れ蟻掛けのうち大入れを受ける窪みとの仕口耐力試験の結果を示すグラフである。
First, FIG. 2 (a) is a simplified hatching showing a rectangular large vertical cross section at a joint convex portion of a conventional horizontal member. Since the vertical cross section of the conventional fitting convex portion 120 is rectangular, the side surface is vertical and the bottom surface is horizontal. FIG. 2 (b) simply shows a vertical cross section of a recess 150 that receives a large insert 120 in a large dovetail in a joint recess 140 of a conventional horizontal member by hatching.
FIG. 2 (c) shows the results of a joint yield test of a large insertion of a conventional convex part of a horizontal member and a hollow that receives a large insertion of a large dovetail in a conventional joint concave part. It is a graph.
次に、図3(a)は、本発明の実施例1に係る横架材100の仕口凸部110の大入れ120の垂直断面をハッチングにて簡単に示したものとなっている。図3(a)に示すように、本発明の実施例1に係る横架材100の仕口凸部110の大入れ120の垂直断面は、側面部121においてテーパーが設けられており、底面部122はアーチ状の曲面となっている。また、図3(b)は、本発明の実施例1に係る横架材100の仕口凹部140における大入れ蟻掛けのうち大入れ120を受ける窪み150の垂直断面をハッチングにて簡単に示したものとなっている。図3(c)は本発明の実施例1に係る横架材100の仕口凸部110の大入れ120と、仕口凹部140における大入れ蟻掛けのうち大入れ120を受ける窪み150との仕口耐力試験の結果を示すグラフである。   Next, Fig.3 (a) has shown simply the vertical cross section of the case 120 of the joint convex part 110 of the horizontal member 100 which concerns on Example 1 of this invention by hatching. As shown in FIG. 3 (a), the vertical cross section of the case 120 of the joint convex portion 110 of the horizontal member 100 according to the first embodiment of the present invention is tapered at the side surface portion 121, and the bottom surface portion. 122 is an arch-shaped curved surface. Moreover, FIG.3 (b) shows simply the vertical cross section of the hollow 150 which receives the large insertion 120 among the large insertion dovetails in the joint recessed part 140 of the horizontal member 100 which concerns on Example 1 of this invention by hatching. It has become. FIG. 3 (c) shows the insertion 120 of the joint protrusion 110 of the horizontal member 100 according to the first embodiment of the present invention and the recess 150 that receives the insertion 120 of the insertion dovetails in the connection recess 140. It is a graph which shows the result of a joint proof stress test.
図2(c)および図3(c)に示す仕口耐力試験の結果を示すグラフが示すように、明らかに本発明の横架材において仕口凸部110と仕口凹部140との仕口耐力が向上していることが分かった。ここで、発明者らは、図2に示す従来型の横架材との比較において、図3に示す本発明の横架材において仕口凸部110、仕口凹部140において荷重を支える仕口耐力を発揮している箇所をさまざま検証した結果、大入れ120、窪み150において、実質的に窪み150の左右の側面部151のテーパー面から横架材の長さ方向へと水平成分として伝達せしめる負荷を増大せしめ、窪み150の底面部152が垂直成分として受ける負荷を低減せしめることにより仕口耐力が発揮されることが検証できた。つまり、本発明の横架材において、底面部122および底面部152よりも、テーパーを備えている側面部121および側面部151の方が仕口耐力に大きく寄与していることが検証できた。   As shown in the graphs showing the results of the joint yield strength test shown in FIGS. 2 (c) and 3 (c), the joints of the joint convex part 110 and the joint concave part 140 are clearly formed in the horizontal member of the present invention. It was found that the yield strength was improved. Here, in comparison with the conventional horizontal member shown in FIG. 2, the inventors of the horizontal member of the invention shown in FIG. As a result of various verifications of the places where the proof stress is exhibited, in the large case 120 and the depression 150, the horizontal component is transmitted from the tapered surfaces of the left and right side surfaces 151 of the depression 150 to the length direction of the horizontal member. It was verified that the joint proof strength was exhibited by increasing the load and reducing the load received by the bottom surface portion 152 of the recess 150 as a vertical component. That is, in the horizontal member of the present invention, it was verified that the side surface portion 121 and the side surface portion 151 having a taper contributed more to the joint strength than the bottom surface portion 122 and the bottom surface portion 152.
この理由は、端的に言えば、窪み150の側面部151のテーパー面が、仕口の鉛直方向にかかる荷重の多くを、その直交成分、つまり仕口凹部140の長さ方向への水平成分として支えるからである。   In short, the taper surface of the side surface portion 151 of the recess 150 has a lot of load applied in the vertical direction of the joint as its orthogonal component, that is, the horizontal component in the length direction of the joint recess 140. Because it supports.
ここで、図2と図3において、横架材の仕口耐力を発揮する窪み150が水平成分を担う部分を比較してみる。図2(b)の支圧面L(0)は完全に水平面となっており、仕口の鉛直方向にかかる荷重をすべて垂直成分として受けている。これに対し、図3(b)ではアーチ状の底面の最底点を除き、支圧面L(1)に水平面は存在せず、仕口の鉛直方向にかかる荷重の多くを横架材の長さ方向への水平成分として伝達させることができる。図2(a)の垂直断面のせん断耐力、図3(a)の垂直断面のせん断耐力、図2(b)の支圧面L(0)の支圧耐力、そして図3(b)の支圧面L(1)の支圧耐力を比較すると、図2(b)の支圧面L(0)の支圧耐力が最も小さいため、本発明の仕口凸部110と仕口凹部140の組み合わせとした場合における仕口耐力の方が、従来型の横架材の仕口凸部と仕口凹部の組み合わせとした場合における仕口耐力よりも大きくなる。   Here, in FIG. 2 and FIG. 3, the part which the hollow 150 which exhibits the joint strength of a horizontal member bears a horizontal component will be compared. The bearing surface L (0) in FIG. 2 (b) is a completely horizontal surface and receives all the load applied in the vertical direction of the joint as a vertical component. On the other hand, in FIG. 3B, except for the lowest point of the arch-shaped bottom surface, there is no horizontal surface on the bearing surface L (1), and much of the load applied in the vertical direction of the joint is increased by the length of the horizontal member. It can be transmitted as a horizontal component in the vertical direction. The shear strength of the vertical section of FIG. 2 (a), the shear strength of the vertical section of FIG. 3 (a), the bearing strength of the bearing surface L (0) of FIG. 2 (b), and the bearing surface of FIG. 3 (b). When the bearing strength of L (1) is compared, the bearing strength of the bearing surface L (0) in FIG. 2 (b) is the smallest, so the joint convex portion 110 and the joint concave portion 140 of the present invention are combined. The joint yield strength in this case is larger than the joint yield strength in the case of using a combination of the joint convex portion and the joint concave portion of the conventional horizontal member.
上記したように、横架材の大入れ120の側面部121にテーパーを設けることによって仕口耐力が向上することが分かったが、側面部121のテーパーの設け方により、仕口耐力がどのように向上するか様々な観点について調べた。   As described above, it has been found that providing the taper on the side surface 121 of the horizontal wall case 120 improves the joint yield strength. However, depending on how the side surface 121 is provided with a taper, how the joint yield strength is improved. We investigated various viewpoints.
以下、テーパーの垂直に対する角度、大入れ120および受け残り部170の高さ、テーパー付けの開始位置、大入れ120の底面部122の加圧面の形状、大入れ蟻掛けの窪み150の底面部152の支圧面の形状などについて検討した。   Hereinafter, the angle of the taper with respect to the vertical, the height of the case 120 and the remaining portion 170, the start position of the taper, the shape of the pressure surface of the bottom surface 122 of the case 120, the bottom 152 of the recess 150 of the dovetail dovetail The shape of the bearing surface was examined.
まず、大入れ120の側面部121のテーパー角度および窪み150の側面部151のテーパー角度について述べる。   First, the taper angle of the side surface portion 121 of the large case 120 and the taper angle of the side surface portion 151 of the recess 150 will be described.
図4は、大入れ120および窪み150を中心とした荷重のかかり方を分析した図である。
仕口凸部110から大入れ120を経て仕口凹部140の窪み150へと伝わる鉛直荷重をPとし、その鉛直方向に対するテーパー角度をθ1とし、大入れ120の側面部121のテーパー面に直行する力をPNとし、大入れ120の底面部122にかかる力をPVとした場合、図4に示すように、大入れ蟻掛けの窪み150の側面部151のテーパー面に直交する抗力がRN、大入れ蟻掛けの窪み150の底面部152にかかる力がRVとなる。この耐力RNについて水平成分、垂直成分に分けてみると、下記[数1]、[数2]のように計算できる。
[数1]
水平成分RH=RNcosθ1
[数2]
垂直成分RC=RNsinθ1
FIG. 4 is an analysis of how the load is applied around the large case 120 and the depression 150.
A vertical load transmitted from the joint convex portion 110 to the recess 150 of the joint concave portion 140 through the large slot 120 is defined as P, and a taper angle with respect to the vertical direction is defined as θ1, and goes straight to the tapered surface of the side surface portion 121 of the large pocket 120. When the force is PN and the force applied to the bottom surface portion 122 of the large case 120 is PV, the resistance perpendicular to the tapered surface of the side surface 151 of the large dovetail recess 150 is RN, as shown in FIG. The force applied to the bottom surface portion 152 of the dovetail recess 150 is RV. When this proof stress RN is divided into a horizontal component and a vertical component, it can be calculated as in the following [Equation 1] and [Equation 2].
[Equation 1]
Horizontal component RH = RNcos θ1
[Equation 2]
Vertical component RC = RNsin θ1
ここで、RCは大入れ蟻掛けの窪み150のテーパー面(1面)の支圧耐力、RVは大入れ蟻掛けの窪み150の底面部152の支圧耐力とみなせるため、大入れ蟻掛けの窪み150による支圧耐力ΣRは、下記[数3]のようになる。
[数3]
ΣR=2RC+RV
Here, RC can be regarded as the bearing strength of the tapered surface (one surface) of the large dovetail recess 150, and RV can be regarded as the bearing strength of the bottom portion 152 of the large dovetail recess 150. The bearing strength ΣR by the depression 150 is expressed by the following [Equation 3].
[Equation 3]
ΣR = 2RC + RV
一方、仕口凸部110の大入れ120の垂直断面(A1)のせん断耐力QA1は、下記[数4]のように計算される。
[数4]
QA1=Fs・A1・α (ここで、Fsはせん断の基準強度、A1は断面積、αは形状係数)
On the other hand, the shear strength QA1 of the vertical cross section (A1) of the case 120 of the joint convex portion 110 is calculated as shown in the following [Equation 4].
[Equation 4]
QA1 = Fs · A1 · α (where Fs is the reference shear strength, A1 is the cross-sectional area, and α is the shape factor)
ここで、仕口凸部110にかかる鉛直荷重Pは、大入れ120の垂直断面のせん断耐力QA1か、大入れ120を経て仕口凹部140の窪み150が受ける支圧耐力ΣRのいずれかまでしか負荷することができないため、横架材接合部の仕口耐力Roは、下記[数5]のようになる。
[数5]
Ro=min(ΣR、QA1)
Here, the vertical load P applied to the joint convex portion 110 is only up to either the shear strength QA1 of the vertical section of the pocket 120 or the bearing strength ΣR received by the recess 150 of the joint recess 140 through the pocket 120. Since it cannot be loaded, the joint proof stress Ro of the horizontal member joint is as shown in the following [Equation 5].
[Equation 5]
Ro = min (ΣR, QA1)
これら横架材接合部の仕口耐力Ro、大入れ蟻掛けの窪み150の側面部151のテーパー面(2面分)の支圧耐力2RC、大入れ蟻掛けの窪み150の底面部152の支圧耐力RV、大入れ120の垂直断面(A1)のせん断耐力QA1の4つの値が、仕口形状の違いによってどのように変化するかをグラフに示す。   The joint strength Ro of the horizontal member joint portion, the bearing strength 2RC of the tapered surface (two portions) of the side surface 151 of the large dovetail recess 150, and the support of the bottom portion 152 of the large dovetail recess 150 The graph shows how the four values of the proof stress RV and the shear strength QA1 of the vertical cross section (A1) of the case 120 change depending on the shape of the joint.
図5は、横軸に大入れ120および窪み150の高さ(mm)をとり、縦軸に力(kN)をとり、横架材接合部の仕口耐力Ro、さらに、2RC、RV、QA1をプロットした図である。図5は大入れ120および窪み150の上端の幅が120mm、大入れ120の底面部122および窪み150の底面部152の幅が120mm、横架材100の高さが240mm、受け残り部170の高さが90mmの場合における、従来の矩形状の大入れのせん断面積A1を基準として検討したものである。すなわち、大入れ120の底面部122の幅および窪み150の底面部152の幅を減少させた時、大入れのせん断面積A1が一定となるように大入れ120および窪み150の高さを増加させて試算している。なお、図5の横軸の左端“従来”には、テーパーが設けられていない従来の大入れ形状の横架材接合部について掲載している。   In FIG. 5, the horizontal axis indicates the height (mm) of the large insert 120 and the recess 150, the vertical axis indicates the force (kN), the joint strength Ro of the horizontal member joint, and 2RC, RV, QA1 FIG. In FIG. 5, the width of the upper ends of the container 120 and the recess 150 is 120 mm, the width of the bottom surface portion 122 of the container 120 and the bottom surface 152 of the recess 150 is 120 mm, the height of the horizontal member 100 is 240 mm, This is based on the conventional rectangular large shear area A1 when the height is 90 mm. That is, when the width of the bottom surface part 122 of the large container 120 and the width of the bottom surface part 152 of the hollow 150 are decreased, the height of the large wall 120 and the hollow 150 is increased so that the large shear area A1 is constant. To estimate. In addition, the left end “conventional” of the horizontal axis in FIG. 5 describes a conventional large-fitting horizontal member joint portion that is not provided with a taper.
図5に示すように、A1すなわちQA1が一定のもとでは大入れ120および窪み150の高さが高くなるにつれて、窪み150の底面部152の幅が小さくなるためRVは徐々に小さくなってゆくが、窪み150の側面部151のテーパー角度θ1の増大およびテーパー長の増加とともに2RCが大きくなってゆく効果の方が大きいため、仕口耐力Roは増大傾向となる。
このことは、窪み150の底面部152の幅を確保することよりも側面部151のテーパー角度θ1およびテーパーの長さを確保することの方が仕口の耐力向上には効果的であることを現している。この場合、窪み150を切削する回転刃の直径を小さくするほど側面部151のテーパー角度θ1およびテーパーの長さを確保しやすくなるうえ、底面部152の幅を狭くすることができる。
As shown in FIG. 5, when A1 or QA1 is constant, the width of the bottom surface 152 of the depression 150 becomes smaller as the height of the large pocket 120 and the depression 150 becomes higher, so that RV gradually becomes smaller. However, since the effect of increasing 2RC as the taper angle θ1 of the side surface 151 of the recess 150 increases and the taper length increases, the joint proof stress Ro tends to increase.
This means that securing the taper angle θ1 and the taper length of the side surface portion 151 is more effective for improving the yield strength of the joint than securing the width of the bottom surface portion 152 of the recess 150. It appears. In this case, as the diameter of the rotary blade that cuts the recess 150 is reduced, the taper angle θ1 of the side surface portion 151 and the length of the taper are easily secured, and the width of the bottom surface portion 152 can be reduced.
しかし、窪み150を切削する回転刃の直径を小さくしすぎると、窪み150の加工時間が長くなり、非効率となる。逆に、窪み150を短時間で切削することが可能な比較的大径の回転刃を用いて側面部151のテーパーの長さを確保しようとすると、仕口凹部140の受け残り部170の高さが低くなるとともに、窪み150の底面部152の負荷が大きくなり、底面部152からの割れの可能性が大きくなる。さらに、テーパーの長さが長くなるほど仕口凹部を備えた横架材の断面欠損が大きくなり、曲げ耐力が低下する可能性が大きくなる。つまり、窪み150を切削する回転刃の直径は小さすぎず大きすぎないことが望ましく、仕口凹部140の受け残り部170の高さは低すぎないことが望ましいといえる。   However, if the diameter of the rotary blade that cuts the recess 150 is made too small, the processing time of the recess 150 becomes long and inefficient. Conversely, if it is attempted to secure the taper length of the side surface portion 151 using a relatively large diameter rotary blade capable of cutting the recess 150 in a short time, the height of the remaining portion 170 of the joint recess 140 is increased. In addition, the load on the bottom surface portion 152 of the recess 150 increases and the possibility of cracking from the bottom surface portion 152 increases. Furthermore, as the length of the taper increases, the cross-sectional defect of the horizontal member provided with the joint recess increases, and the possibility that the bending strength decreases is increased. That is, it is desirable that the diameter of the rotary blade that cuts the recess 150 is not too small and not too large, and that the height of the remaining portion 170 of the joint recess 140 is not too low.
図6は、横軸に大入れ120および窪み150の高さ(mm)をとり、縦軸に力(kN)をとり、横架材接合部の仕口耐力Ro、さらに、2RC、RV、QA1をプロットした図である。図6は大入れ120および窪み150の上端の幅が120mm、大入れ120の底面部122および窪み150の底面部152の幅が40mm、横架材100の高さが240mmの場合である。   In FIG. 6, the horizontal axis indicates the height (mm) of the large insert 120 and the recess 150, the vertical axis indicates the force (kN), the joint strength Ro of the horizontal member joint, and 2RC, RV, QA1 FIG. FIG. 6 shows the case where the width of the upper ends of the large case 120 and the depression 150 is 120 mm, the width of the bottom surface portion 122 of the large case 120 and the bottom surface portion 152 of the depression 150 is 40 mm, and the height of the horizontal member 100 is 240 mm.
なお、図6の横軸の左端にある“従来”は、テーパーが設けられていない従来の矩形状の大入れ形状の横架材接合部の仕口耐力を示したものである。一例として、テーパーを設けずに受け残り部170の高さを90mmとした場合の矩形状の大入れ形状の横架材接合部の仕口耐力の試算結果を掲載している。   Note that “conventional” at the left end of the horizontal axis in FIG. 6 indicates the joint strength of a conventional rectangular large-wall-shaped horizontal member joint without a taper. As an example, the trial calculation result of the joint strength of the horizontal insertion member of the rectangular large insertion shape when the height of the receiving portion 170 is 90 mm without providing a taper is shown.
図6に示すように、大入れ120の底面部122および窪み150の底面部152の幅を一定として、大入れ120および窪み150の高さを変化させた時、広範囲の高さで従来の大入れ形状の横架材接合部の仕口耐力Roを上回っていることが分かる。なお、図6によれば、大入れ120および窪み150の高さが160mmから220mmへと高くなる時、つまりテーパー角度θ1が小さくなりながらテーパーの長さが長くなる時、Ro、実質的には2RCはわずかずつ大きくなっているに過ぎない。このことから、例えば窪み150を切削する回転刃の直径が同一の場合は、窪み150の高さを高くし、テーパーの長さを長くしても、テーパー角度θ1が少しずつ小さくなる結果、2RC+RVの値は図5のように大きくは向上しないことが分かる。   As shown in FIG. 6, when the height of the bottom portion 122 of the large case 120 and the bottom surface portion 152 of the hollow 150 is constant and the height of the large wall 120 and the hollow 150 is changed, the conventional large size can be obtained over a wide range of heights. It can be seen that it exceeds the joint strength Ro of the container-shaped horizontal member joint. According to FIG. 6, when the height of the pocket 120 and the recess 150 is increased from 160 mm to 220 mm, that is, when the taper angle θ1 is reduced and the taper length is increased, Ro, substantially 2RC is only getting bigger. From this, for example, when the diameter of the rotary blade for cutting the recess 150 is the same, the taper angle θ1 gradually decreases even if the height of the recess 150 is increased and the length of the taper is increased. As a result, 2RC + RV It can be seen that the value of does not improve greatly as shown in FIG.
図7は、横軸にテーパー角度θ1をとり、縦軸に力(kN)をとり、横架材接合部の仕口耐力Ro、さらに、2RC、RV、QA1をプロットした図である。図7も図5および図6と同じく、大入れ120および窪み150の幅が120mm、横架材100の高さが240mm、受け残り部170の高さが90mmの場合を基準としている。   FIG. 7 is a diagram in which the taper angle θ1 is taken on the horizontal axis, the force (kN) is taken on the vertical axis, and the joint strength Ro of the horizontal member joint portion, and further 2RC, RV, and QA1 are plotted. 7 and FIG. 6 are based on the case where the width of the large case 120 and the recess 150 is 120 mm, the height of the horizontal member 100 is 240 mm, and the height of the remaining portion 170 is 90 mm.
まず、図7に示すように、テーパー角度θ1=0の場合、つまり、テーパーが設けられていない場合、つまり、従来の大入れ形状の横架材接合部の仕口耐力Roに比べて、テーパー角度θ1を設けることにより横架材100の接合部の仕口耐力Roの方が大きくなっている範囲が存在することが分かる。このことより、大入れ120の側面部121および大入れ蟻掛けの窪み150の側面部151にテーパーが設けられておれば仕口耐力Roが向上するという効果が確認できる。さらに注目すべき点は、大入れ120および窪み150の高さを変更することなく、受け残り部170の高さを変更することなく、テーパー角度θ1を設けることにより、大入れ120の垂直断面のせん断面積A1が小さくなっていっても、従来の大入れ形状の横架材接合部の仕口耐力Roよりも横架材100の接合部の仕口耐力Roの方が大きくなっている範囲が存在することである。従来、横架材接合部の仕口耐力Roは大入れの垂直断面積A1に比例すると考えられてきたが、大入れ120の側面部121および大入れ蟻掛けの窪み150の側面部151にテーパーが設けられておれば、大入れの垂直断面積A1と仕口耐力Roの間に比例関係は認められず、大入れ120および窪み150の高さを大きくすることなく、受け残り部170の高さを小さくすることなく、つまり仕口凹部を備えた横架材の断面欠損を大きくすることなく、仕口耐力Roを大きく向上させることができることが分かる。   First, as shown in FIG. 7, when the taper angle θ1 = 0, that is, when the taper is not provided, that is, when compared with the joint strength Ro of the conventional large-wall-shaped horizontal member joint, It can be seen that there is a range in which the joint strength Ro of the joint portion of the horizontal member 100 is larger by providing the angle θ1. From this, it can be confirmed that if the side surface portion 121 of the large case 120 and the side surface portion 151 of the large dovetail dent 150 are tapered, the joint resistance Ro is improved. Further, it should be noted that the vertical cross section of the container 120 can be obtained by providing the taper angle θ1 without changing the height of the container 120 and the recess 150, and without changing the height of the receiving portion 170. Even if the shear area A1 is small, there is a range in which the joint yield strength Ro of the joint portion of the horizontal member 100 is larger than the joint yield strength Ro of the conventional large-wall-shaped horizontal member joint portion. It exists. Conventionally, it has been considered that the joint strength Ro of the horizontal member joint portion is proportional to the vertical cross-sectional area A1 of the large insert, but is tapered to the side portion 121 of the large insert 120 and the side portion 151 of the hollow 150 of the large dovetail. , The proportional relationship is not recognized between the large vertical sectional area A1 and the joint proof stress Ro, and the height of the remaining portion 170 is not increased without increasing the height of the large pocket 120 and the depression 150. It can be seen that the joint yield strength Ro can be greatly improved without reducing the height, that is, without increasing the cross-sectional defect of the horizontal member provided with the joint recess.
なお、テーパー角度θ1=0では仕口耐力Roは約11kNであるが、テーパー角度θ1の角度が大きくなるに従って横架材100の接合部の仕口耐力Roの方が徐々に大きくなってゆき、テーパー角度θ1が14度付近で仕口耐力Roが約22kNとなりピークを迎え、ピークを越えれば低下してゆき、テーパー角度θ1=20度付近で仕口耐力Roは約18kNまで戻っている。なお、図7において仕口耐力Roがピークを示したテーパー角度θ1が14度のとき、窪み150の底面部152の幅は45mmと試算された。   In addition, when the taper angle θ1 = 0, the joint yield strength Ro is about 11 kN, but as the taper angle θ1 increases, the joint yield strength Ro of the joint portion of the horizontal member 100 gradually increases. When the taper angle θ1 is around 14 degrees, the joint proof stress Ro reaches about 22 kN, reaches a peak, and decreases when the peak is exceeded, and when the taper angle θ1 is around 20 degrees, the joint proof strength Ro returns to about 18 kN. In FIG. 7, when the taper angle θ <b> 1 at which the joint yield strength Ro showed a peak was 14 degrees, the width of the bottom surface portion 152 of the recess 150 was estimated to be 45 mm.
なお、テーパー角度θ1が大きくなりすぎると、大入れ120の垂直断面のせん断耐力QA1が小さくなりすぎ、かえって仕口耐力Roが低下することも分かる。また、大入れ120の上面の横幅は梁の幅により制限があるため、テーパー角度θ1が大きくなると底面部122がゼロとなり、大入れ120の垂直断面が底面のないV型になり、それ以上テーパー角度θ1を大きくしても大入れの垂直断面が減少して大入れのせん断耐力が減少する一方となる。   It can also be seen that if the taper angle θ1 becomes too large, the shear strength QA1 of the vertical cross section of the case 120 becomes too small, and the joint strength Ro decreases instead. Further, since the lateral width of the top surface of the case 120 is limited by the width of the beam, the bottom surface portion 122 becomes zero when the taper angle θ1 is increased, the vertical cross section of the case 120 becomes a V shape without a bottom surface, and the taper is further tapered. Even if the angle θ1 is increased, the vertical cross section of the large pocket decreases and the shear strength of the large pocket decreases.
以上を考察すると、本発明の横架材100の大入れ120の側面部121のテーパー付けにより仕口耐力の向上という効果を発揮するために有効なテーパー角度θ1には範囲があることが分かる。   Considering the above, it can be seen that there is a range in the taper angle θ1 that is effective in order to exert the effect of improving the joint yield strength by tapering the side surface portion 121 of the large case 120 of the horizontal member 100 of the present invention.
次に、図8は、大入れ120および窪み150においてテーパー付けを開始する高さ(mm)を横軸にとり、縦軸に力(kN)をとり、横架材接合部の仕口耐力Ro、さらに、2RC、RV、QA1をプロットした図である。図8は大入れ120および窪み150の上端の幅が120mm、大入れ120の底面部122および窪み150の底面部152の幅が40mm、横架材100の高さが240mm、受け残り部170の高さが90mm、の場合である。   Next, in FIG. 8, the horizontal axis indicates the height (mm) at which tapering starts at the large insert 120 and the recess 150, the vertical axis indicates the force (kN), and the joint strength Ro of the horizontal member joint portion, Furthermore, it is the figure which plotted 2RC, RV, and QA1. FIG. 8 shows that the width of the upper ends of the large case 120 and the recess 150 is 120 mm, the width of the bottom surface portion 122 of the large case 120 and the bottom surface portion 152 of the depression 150 is 40 mm, the height of the horizontal member 100 is 240 mm, In this case, the height is 90 mm.
なお、図8の横軸の右端にある“従来”は、テーパーが設けられていない従来の矩形状の大入れ形状の横架材接合部の仕口耐力を示したものである。一例として、テーパーを設けずに受け残り部170の高さが90mmの場合の矩形状の大入れ形状の横架材接合部の仕口耐力の試算結果を掲載している。   Note that “conventional” at the right end of the horizontal axis in FIG. 8 indicates the joint strength of a conventional rectangular large-walled horizontal joint member that is not provided with a taper. As an example, a trial calculation result of the joint strength of a horizontal insertion member having a rectangular large insertion shape when the height of the remaining portion 170 is 90 mm without providing a taper is shown.
図8に示すように、テーパーが設けられていない従来の大入れ形状の横架材接合部の仕口耐力Roに比べて、テーパー角度θ1が設けられている場合は、テーパー付けを開始する高さの高低に関わらず、大入れ120および窪み150の仕口耐力Roが向上するという効果が確認できる。   As shown in FIG. 8, when the taper angle θ1 is provided as compared with the joint proof stress Ro of the conventional large-wall-shaped horizontal member joint portion that is not provided with a taper, the taper starts to be tapered. Regardless of the height, it is possible to confirm the effect that the joint strength Ro of the large slot 120 and the recess 150 is improved.
なお、従来の大入れ形状の横架材接合部の仕口耐力Roは約11kNであるが、テーパー付けを開始する高さが小さくなるに従って、大入れ120および窪み150の仕口耐力Roが徐々に大きくなってゆき、テーパー付けを開始する高さが10mm付近でピークの22kNとなり、テーパー付けを開始する高さが0mmでは、つまり大入れ120の上端および窪み150の上端からテーパー付けを開始する場合では、仕口耐力Roはわずかに低下している。これは、大入れ120の垂直断面が小さくなり、せん断耐力QA1が窪み150の支圧耐力2RC+RVを下回ったためである。以上のことから、本発明の横架材100の大入れ120の側面部121のテーパー付けを開始する高さを工夫することにより、仕口耐力Roがさらに向上しうることが分かる。   Note that the joint strength Ro of the conventional large-shaped horizontal member joint portion is about 11 kN, but the joint strength Ro of the large case 120 and the recess 150 gradually increases as the height at which the taper starts is reduced. When the height at which taper starts is about 10 mm, the peak is 22 kN, and when the height at which taper is started is 0 mm, the taper is started from the upper end of the pocket 120 and the upper end of the recess 150. In some cases, the joint proof stress Ro is slightly decreased. This is because the vertical cross section of the large case 120 becomes smaller and the shear strength QA1 is lower than the bearing strength 2RC + RV of the recess 150. From the above, it can be seen that the yield strength Ro can be further improved by devising the height at which the side surface portion 121 of the large case 120 of the horizontal member 100 of the present invention is tapered.
また、次に、注目すべき点は、図6、図7、図8に示すように、横架材接合部の仕口耐力Roにはピークが存在することが分かる。このピーク時のテーパー角度θ1は、大入れ120の幅、大入れ120の高さ、受け残り部170の高さによっても変化する。図5、図6、図7、図8および前記[数1]から[数5]をもとに、実際に市場に流通している横架材の幅および高さの組み合わせ、すなわち40種以上の各断面寸法ごとにピーク時のテーパー角度θ1を検討した結果、有効なテーパー角度θ1の範囲は、0度より大きく、かつ、概ね40度程度までと言える。
[数6]
0<θ1≦40
Next, as to be noted, as shown in FIGS. 6, 7, and 8, it can be seen that there is a peak in the joint strength Ro of the horizontal member joint. The taper angle θ1 at the peak also varies depending on the width of the large case 120, the height of the large case 120, and the height of the remaining receiving portion 170. Based on FIG. 5, FIG. 6, FIG. 7, FIG. 8 and [Formula 1] to [Formula 5], combinations of width and height of horizontal members actually distributed in the market, that is, 40 types or more As a result of examining the taper angle θ1 at the peak for each of the cross-sectional dimensions, it can be said that the range of the effective taper angle θ1 is larger than 0 degree and up to about 40 degrees.
[Equation 6]
0 <θ1 ≦ 40
さらに、木造軸組工法住宅において多用されている横架材の断面寸法、例えば梁幅が105mmおよび120mm、梁高さが210mm、240mm、270mm、300mm、330mm、そして360mmの範囲にある12種の断面寸法におけるテーパー角度θ1として好ましい範囲は、多少の幅を考慮すると下記[数7]のように示すことができる。
[数7]
6≦θ1≦24
Furthermore, cross-sectional dimensions of horizontal members frequently used in wooden frame construction methods, such as beam widths of 105 mm and 120 mm, beam heights of 210 mm, 240 mm, 270 mm, 300 mm, 330 mm, and 360 mm A preferable range for the taper angle θ1 in the cross-sectional dimension can be expressed as in the following [Equation 7] in consideration of a certain width.
[Equation 7]
6 ≦ θ1 ≦ 24
図9は、仕口凹部140の窪み150において、テーパー付けを開始する高さを調整した様子を比較する図である。図9(a)は窪み150の側面部151において上面からテーパー付けを開始している構成例、図9(b)は上面からやや下付近からテーパー付けを開始している構成例、図9(c)は図9(b)よりもさらに下方からテーパー付けを開始している構成例である。図9に示すように、仕口凹部140の窪み150の側面部151におけるテーパー付けを開始する高さを調整すれば、横架材100全体の幅や高さによって、好ましいせん断耐力QA1、好ましいテーパー角度θ1およびテーパーの長さ、そして好ましい受け残り部170の高さをより細かく検討、調整することができる。   FIG. 9 is a diagram for comparing a state in which the height at which tapering is started is adjusted in the recess 150 of the joint recess 140. FIG. 9A shows a configuration example in which tapering is started from the upper surface in the side surface portion 151 of the recess 150, FIG. 9B shows a configuration example in which tapering is started from slightly below the upper surface, and FIG. FIG. 9C is a configuration example in which tapering is started from the lower side than in FIG. As shown in FIG. 9, if the height at which the side surface portion 151 of the recess 150 of the joint recess 140 is tapered is adjusted, the preferred shear strength QA1, the preferred taper, depending on the overall width and height of the horizontal member 100. The angle θ1 and the length of the taper, and the preferable height of the receiving portion 170 can be examined and adjusted in more detail.
次に、大入れ120の底面部122の加圧面の形状、および、大入れ蟻掛けの窪み150の底面部152の支圧面の形状の工夫について述べる。
上記のように、本発明の横架材では、大入れ120の側面部121にテーパーを設けるが、底面部122にも工夫の余地がある。一例として、底面部122を水平面ではなく下に凸型のいわゆるアーチ型に湾曲させる工夫がある。また、逆に底面部122を水平面ではなく上に凸型のいわゆるアーチ型に湾曲させる工夫もあり得る。このようにアーチ型にすれば底面部122が水平面の場合よりも鉛直方向の耐力が向上することが期待できる。
Next, the shape of the pressure surface of the bottom surface portion 122 of the large case 120 and the idea of the shape of the pressure bearing surface of the bottom surface portion 152 of the recess 150 of the large dovetail will be described.
As described above, in the horizontal member of the present invention, the side surface portion 121 of the large case 120 is tapered, but the bottom surface portion 122 has room for improvement. As an example, there is a device for bending the bottom surface portion 122 into a so-called arch shape that is convex downward instead of a horizontal plane. On the contrary, there may be a device for bending the bottom surface portion 122 into a so-called arch shape that is convex upward rather than a horizontal plane. In this way, it can be expected that the proof strength in the vertical direction is improved as compared with the case where the bottom surface portion 122 is a horizontal plane.
実施例2は、蟻130についても側面部にテーパーを設け、蟻130にも仕口耐力を持たせた構成例である。
図10は、本実施例2に示す横架材100aの構成を模式的に示した構成図である。
本実施例2に示す横架材100aは、仕口凸部110a、仕口凸部の大入れ120、仕口凸部の蟻130a、仕口凹部140a、仕口凹部の大入れ蟻掛け(150、160a)、受け残り部170を備えた構成となっている。
The second embodiment is a configuration example in which the ant 130 is also provided with a taper on the side surface portion, and the ant 130 is also provided with joint resistance.
FIG. 10 is a configuration diagram schematically showing the configuration of the horizontal member 100a shown in the second embodiment.
The horizontal member 100a shown in the second embodiment includes a joint convex part 110a, a joint convex part insertion 120, a joint convex part ant 130a, a joint concave part 140a, a joint concave part large dovetail (150 160a), and a receiving portion 170 is provided.
実施例1の構成例に比べ、仕口凸部110aの蟻130aの側面部131aの少なくとも一部においてテーパーが設けられている点が特徴である。また、仕口凹部140aの大入れ蟻掛けの窪み160aにも蟻130aのテーパーに対応するテーパーが設けられている点も特徴である。
このように、大入れ120の側面部121のみならず蟻130aの側面部131aにもテーパーが設けられておれば、実施例1と同様の理由で仕口耐力が向上する。
Compared to the configuration example of the first embodiment, the taper is provided in at least a part of the side surface portion 131a of the ant 130a of the joint convex portion 110a. Another feature is that a taper corresponding to the taper of the ant 130a is also provided in the hollow 160a of the large dovetail of the joint recess 140a.
Thus, if the side surface part 121a of the dovetail 130a is provided with a taper as well as the side surface part 121 of the large case 120, the joint yield strength is improved for the same reason as in the first embodiment.
なお、蟻130aの側面部131aに設けるテーパーの角度θ2についても、実施例1で示したように、[数6]が成立し、0<θ2≦40であれば良い。
さらに、木造軸組工法住宅において多用されている横架材の断面寸法、例えば梁幅が105mmおよび120mm、梁高さが210mm、240mm、270mm、300mm、330mm、そして360mmの範囲にある12種の断面寸法におけるテーパー角度θ2として好ましい範囲は、多少の幅を考慮すると下記[数8]のように示すことができる。
[数8]
4≦θ2≦14
As for the taper angle θ2 provided on the side surface portion 131a of the ant 130a, as shown in the first embodiment, [Equation 6] is satisfied and 0 <θ2 ≦ 40 may be satisfied.
Furthermore, cross-sectional dimensions of horizontal members frequently used in wooden frame construction methods, such as beam widths of 105 mm and 120 mm, beam heights of 210 mm, 240 mm, 270 mm, 300 mm, 330 mm, and 360 mm A preferable range for the taper angle θ2 in the cross-sectional dimension can be expressed as in the following [Equation 8] in consideration of a certain width.
[Equation 8]
4 ≦ θ2 ≦ 14
ここで、本発明では、大入れ120の側面部121においてもテーパー角度θ1が設けられているので、大入れ120の側面部121のテーパー角度θ1と、蟻130aの側面部131aのテーパー角度θ2との関係について検討しておく。   Here, in the present invention, since the taper angle θ1 is also provided in the side surface portion 121 of the large case 120, the taper angle θ1 of the side surface portion 121 of the large case 120 and the taper angle θ2 of the side surface portion 131a of the ant 130a are Consider the relationship.
大入れ120の側面部121のテーパー角度θ1と、蟻130aの側面部131aのテーパー角度θ2は同一であっても良いが、異なるものであっても良い。
θ1=θ2であれば、大入れ120の側面部121と蟻130aの側面部131aとは同じ条件で荷重がかかり、加圧面積に応じて負荷が分担されるものと考えられる。ここで、大入れ120の側面部121のテーパー角度θ1よりも蟻130aの側面部131aのテーパー角度θ2を大きくした場合、仕口耐力は蟻130aの支圧耐力に強く依存することとなってしまう。大入れ120の垂直断面に対して、蟻130aの垂直断面は小さいため、大入れ120の側面部121におけるテーパー角度θ1の方を蟻130aの側面部131aにおけるテーパー角度θ2より大きいものとすることが好ましい。
[数9]
θ2≦θ1
The taper angle θ1 of the side surface portion 121 of the large case 120 and the taper angle θ2 of the side surface portion 131a of the dovetail 130a may be the same or different.
If θ1 = θ2, the load is applied to the side surface portion 121 of the large case 120 and the side surface portion 131a of the dovetail 130a under the same conditions, and it is considered that the load is shared according to the pressing area. Here, when the taper angle θ2 of the side surface portion 131a of the ant 130a is made larger than the taper angle θ1 of the side surface portion 121 of the large insert 120, the joint proof strength strongly depends on the bearing strength of the ant 130a. . Since the vertical cross section of the ant 130a is smaller than the vertical cross section of the large case 120, the taper angle θ1 of the side surface portion 121 of the large case 120 may be larger than the taper angle θ2 of the side surface portion 131a of the ant 130a. preferable.
[Equation 9]
θ2 ≦ θ1
次に、蟻130の底面部132の加圧面の形状、および、大入れ蟻掛けの窪み160の底面部162の支圧面の形状の工夫について述べる。
実施例1に示した大入れ120の底面部122と同様、一例として、底面部132を水平面ではなく下に凸型のいわゆるアーチ型に湾曲させる工夫がある。また、逆に底面部132を水平面ではなく上に凸型のいわゆるアーチ型に湾曲させる工夫もあり得る。このようにアーチ型にすれば底面部132が水平面の場合よりも鉛直方向の耐力が向上することが期待できる。
Next, an idea of the shape of the pressure surface of the bottom surface portion 132 of the ant 130 and the shape of the pressure bearing surface of the bottom surface portion 162 of the recess 160 for the large dovetail will be described.
Similar to the bottom surface portion 122 of the large case 120 shown in the first embodiment, as an example, there is a device that curves the bottom surface portion 132 into a so-called arch shape that is convex downward instead of a horizontal surface. On the contrary, there may be a device for bending the bottom surface portion 132 into a so-called arch shape that is convex upward rather than a horizontal plane. In this way, it can be expected that the proof strength in the vertical direction is improved as compared with the case where the bottom surface portion 132 is a horizontal plane.
図11は、大入れ120の左右の側面部121と大入れ蟻掛けの窪み150の左右の側面部151のテーパーの効果、および蟻130aの左右の側面部131aと大入れ蟻掛けの窪み160aの左右の側面部161aのテーパーの効果を説明する図である。比較として、従来型の横架材の仕口凸部と仕口凹部の組み合わせとした場合における仕口耐力を併せて説明し、本発明の実施例2に係る横架材100aの仕口凸部と仕口凹部の組み合わせとした場合における仕口耐力の向上について説明する。   FIG. 11 shows the effects of the taper of the left and right side surfaces 121 of the case 120 and the left and right side portions 151 of the dovetail recess 150, and the right and left side portions 131a of the ant 130a and the dovetail recess 160a. It is a figure explaining the effect of the taper of the side part 161a on either side. For comparison, the joint proof strength in the case of a combination of the joint convex portion and the joint concave portion of the conventional horizontal member is also described, and the joint convex portion of the horizontal member 100a according to the second embodiment of the present invention is described. The improvement of the yield strength in the case of the combination of the joint recess and the joint recess will be described.
まず、図11中の(a)は図10の横架材100aの仕口凸部110aと仕口凹部140aとの仕口耐力試験の結果を示すグラフであり、図11中の(b)は図19に示す従来型の横架材の仕口凸部と仕口凹部との仕口耐力試験の結果を示すグラフである。図11のすべての試験体において、横架材の幅は120mm、横架材の高さは240mmに統一されている。図11中の(a)のグラフが示すように、明らかに本発明の横架材100aにおいて、仕口凸部110aと仕口凹部140aとの仕口耐力が向上していることが分かる。なお、図3(c)と図11中の(b)の縦軸の耐力を比べることにより、本発明の実施例1に係る横架材100の仕口凸部110の大入れ120と仕口凹部140における大入れ蟻掛けのうち大入れ120を受ける窪み150との仕口耐力が、すなわち蟻を持たない大入れ120と窪み150の仕口耐力が、従来型の横架材の大入れおよび蟻を持つ仕口凸部と仕口凹部との仕口耐力と同等以上の耐力を備えていることが分かる。さらに、図3(c)と図11中の(a)の縦軸の耐力を比べることにより、本発明の大入れ120と窪み150に本発明の蟻130aと窪み160aを加えることで仕口耐力がさらに大きく向上していることも分かる。   First, (a) in FIG. 11 is a graph showing the result of the joint yield test of the joint convex part 110a and the joint concave part 140a of the horizontal member 100a in FIG. 10, and (b) in FIG. It is a graph which shows the result of the joint yield strength test of the joint convex part and joint concave part of the conventional horizontal material shown in FIG. In all the test bodies of FIG. 11, the width of the horizontal member is unified to 120 mm, and the height of the horizontal member is unified to 240 mm. As can be seen from the graph (a) in FIG. 11, it is apparent that the joint proof strength of the joint projection 110 a and the joint recess 140 a is improved in the horizontal member 100 a of the present invention. 3C and FIG. 11B, by comparing the proof stress of the vertical axis of FIG. 11, the large insertion 120 and the joint of the joint convex portion 110 of the horizontal member 100 according to the first embodiment of the present invention. Of the large dovetails in the recess 140, the joint strength of the recess 150 that receives the large insert 120, that is, the joint strength of the large insert 120 without the ants and the recess 150, It can be seen that the joint has a proof strength equal to or greater than the joint proof strength of the joint convex portion having the ant and the joint concave portion. Further, by comparing the proof strength of the vertical axis of FIG. 3 (c) and FIG. 11 (a), the proof strength is obtained by adding the ant 130a and the dent 160a of the present invention to the large case 120 and the dent 150 of the present invention. It can also be seen that is greatly improved.
図12は、各種断面寸法を持つ横架材のうち、梁幅が105mm、120mm、135mm、150mmの4種で、梁高さが180mmから30mm間隔で450mmまでの10種、合計40種類の断面寸法のスギ材について、従来の矩形状の大入れおよび蟻を持つ仕口凸部と仕口凹部からなる横架材の仕口耐力と、本発明の仕口凸部110aと仕口凹部140aからなる横架材100aの仕口耐力を比較した図である。   Fig. 12 shows four types of cross-beams with various cross-sectional dimensions: beam widths of 105 mm, 120 mm, 135 mm, and 150 mm, and beam heights of 10 types ranging from 180 mm to 450 mm at intervals of 30 mm. About the cedar material of the dimensions, from the conventional joint of the rectangular shape, the joint proof strength of the horizontal member composed of the joint convex part having the ant and the joint concave part, the joint convex part 110a and the joint concave part 140a of the present invention It is the figure which compared the joint strength of the horizontal member 100a which becomes.
図12には、40種類の断面寸法のそれぞれについて、従来の仕口凸部と仕口凹部からなる横架材における仕口耐力を1とした時の、本発明の仕口凸部110aと仕口凹部140aからなる横架材100aにおける仕口耐力の比率をグラフに示している。ここでは、従来の矩形状の大入れと大入れを受ける窪みの高さ並びに本発明の大入れ120と窪み150の高さを横架材100aの高さの70%に統一し、従来の仕口凸部と仕口凹部からなる横架材の受け残り部並びに本発明の横架材100aの受け残り部170の高さを横架材100aの高さの30%に統一している。また、蟻の高さについては、従来の矩形状の蟻と蟻を受ける窪みの高さを本発明の横架材100aの高さの44%から50%の範囲とし、本発明の蟻130aと窪み160aの高さを本発明の横架材100aの高さの40%から44%の範囲として試算している。なお、40断面寸法のすべてにおいて、本発明の大入れ120および窪み150ではテーパーを開始する高さを30mmから50mmの範囲で設定しており、蟻130aおよび窪み160aではテーパーを開始する高さを0mmとしている。なお、図12を試算、作成するにあたっては、仕口加工に際しての実務的な合理性や効率性に配慮しつつ、大入れ120および窪み150のテーパー角度θ1、蟻130aおよび窪み160aのテーパー角度θ2、大入れ120および窪み150の幅、蟻130aおよび窪み160aの幅などについて検討している。したがって、実務的な合理性や効率性に配慮することなく個々の断面寸法について最適な大入れ幅やテーパー角度などを追求すれば、図12の縦軸の耐力比率は個々の断面寸法ごとにさらに向上させることができる。   FIG. 12 shows the joint convex portion 110a and the finish of the present invention when the joint proof stress of a horizontal member composed of a conventional joint convex portion and a joint concave portion is set to 1 for each of 40 types of cross-sectional dimensions. The ratio of the yield strength in the horizontal member 100a composed of the mouth recess 140a is shown in the graph. Here, the height of the conventional rectangular box and the height of the recess receiving the box, and the height of the wall 120 and the recess 150 of the present invention are unified to 70% of the height of the horizontal member 100a. The height of the receiving portion of the horizontal member made up of the mouth convex portion and the joint concave portion and the height of the receiving portion 170 of the horizontal member 100a of the present invention are unified to 30% of the height of the horizontal member 100a. Regarding the height of the ants, the height of the conventional rectangular ants and the depressions that receive the ants is in the range of 44% to 50% of the height of the horizontal member 100a of the present invention. The height of the depression 160a is estimated as a range of 40% to 44% of the height of the horizontal member 100a of the present invention. In all the 40 cross-sectional dimensions, the height at which the taper starts in the large insert 120 and the recess 150 of the present invention is set in the range of 30 mm to 50 mm, and the height at which the taper starts at the ant 130a and the recess 160a. 0 mm. In calculating and creating FIG. 12, the taper angle θ1 of the large insert 120 and the depression 150 and the taper angle θ2 of the dovetail 130a and the depression 160a are taken into consideration in consideration of practical rationality and efficiency in the joint processing. The widths of the large case 120 and the depression 150, the widths of the ants 130a and the depression 160a, and the like are examined. Accordingly, if the optimum insertion width and taper angle are pursued for each cross-sectional dimension without considering practical rationality and efficiency, the yield strength ratio on the vertical axis in FIG. 12 is further increased for each cross-sectional dimension. Can be improved.
図12に示したとおり、本発明の大入れ120の側面部121と窪み150の側面部151並びに蟻130aの側面部131aと窪み160aの側面部161aにおけるテーパーの効果は、梁高さの低い横架材でも認められる一方、梁高さが高くなるにしたがって飛躍的に現れてくることが分かる。従来の仕口凸部と仕口凹部からなる横架材では、大入れを受ける窪みおよび蟻を受ける窪みの底面部のみが鉛直荷重を負担しているため、梁高さが高くなり、大入れのせん断面積並びにせん断耐力が増えても、大入れを受ける窪みの底面部の支圧面積並びに支圧耐力が増えないため、仕口耐力は向上しない。これに対し、本発明の仕口凸部110a並びに仕口凹部140aからなる横架材では、梁高さおよび大入れ120の高さが高くなるに従って窪み150の側面部151のテーパーの長さも長くなってゆき、側面部151の支圧面積が増えるとともに支圧耐力が向上してゆく。以上のことから、本発明の仕口凸部110a並びに仕口凹部140aからなる横架材100aの効力は、梁高さが高くなるほど、つまり仕口耐力の増加の必要性が増すほど、つまり仕口凸部の大入れのせん断面積の増大並びにせん断耐力の増加に伴い仕口凹部の窪みの支圧耐力向上の必要性が増すほど、明確に現れてくる。   As shown in FIG. 12, the taper effect on the side surface portion 121 of the case 120 and the side surface portion 151 of the depression 150 and the side surface portion 131a of the ant 130a and the side surface portion 161a of the depression 160a is the lateral effect of the low beam height. While it is also recognized for the frame, it can be seen that it appears dramatically as the beam height increases. In conventional horizontal members composed of convex joints and concave joints, only the bottom of the depression receiving the large insert and the depression receiving the ant bears the vertical load, so the beam height increases and the large insertion Even if the shear area and the shear strength of the steel sheet increase, the bearing area and the bearing strength of the bottom surface portion of the recess receiving the large insertion do not increase, so that the joint strength is not improved. On the other hand, in the horizontal member composed of the joint convex portion 110a and the joint concave portion 140a according to the present invention, the length of the taper of the side surface portion 151 of the recess 150 increases as the beam height and the height of the pocket 120 increase. As a result, the bearing area of the side surface portion 151 increases and the bearing capacity is improved. From the above, the effectiveness of the horizontal member 100a comprising the joint convex portion 110a and the joint concave portion 140a of the present invention increases as the beam height increases, that is, the necessity of increasing the joint proof stress increases. The greater the necessity of improving the bearing strength of the recess in the joint recess with the increase in the shear area and the increase in the shear strength of the convex portion of the mouth, the more clearly appears.
次に、仕口凸部を持つ横架材の高さの方が仕口凹部を持つ横架材の高さよりも高い場合の工夫について述べる。このように横架材の高さが合わないことは現実の建築設計では起こり得るが、その際にも本発明のテーパー加工された仕口を備えた横架材の適用を可能とするものである。ここでは、柱持たせの構造を応用した例と、合わせ梁(重ね梁)の構造を応用した例を説明する。   Next, the device when the height of the horizontal member having the joint convex part is higher than the height of the horizontal member having the joint concave part will be described. In this way, the height of the horizontal member does not match, but it can occur in actual building design, but also at that time, it is possible to apply the horizontal member with the tapered joint of the present invention. is there. Here, an example in which a structure with a column is applied and an example in which a structure of laminated beams (overlapping beams) is applied will be described.
まず、柱持たせの構造を応用した例を説明する。
図13は、本発明の仕口凸部110a並びに仕口凹部140aに関して、いわゆる“柱持たせ”の工夫を適用した例を説明する図である。
First, an example in which a structure with pillars is applied will be described.
FIG. 13 is a diagram illustrating an example in which a so-called “holding a pillar” device is applied to the joint convex portion 110a and the joint concave portion 140a of the present invention.
“柱持たせ”とは、従来の木造軸組工法住宅の仕口凸部と仕口凹部において認められる組み合わせの一つである。一般に柱持たせとは、仕口凸部を持つ横架材の高さの方が仕口凹部を持つ横架材の高さよりも高い場合に、仕口凹部の直下に柱材をたて、柱材の上方の左右一端から左右他端に至る切り欠きの上に仕口凸部を持つ横架材の端部を載せることにより、鉛直荷重の多くを柱材で支える構造である。   “Holding a pillar” is one of the combinations recognized in the joint convex part and the joint concave part of the conventional wooden frame construction method house. In general, with pillars, when the height of the horizontal member with the joint convex part is higher than the height of the horizontal member with the joint concave part, the column material is placed directly under the joint concave part, It is a structure that supports most of the vertical load with the column material by placing the end of the horizontal member having the joint convex portion on the notch extending from the left and right ends to the left and right other ends above the column material.
図13の例は、この“柱持たせ”の構造に本発明の仕口凸部110a並びに仕口凹部140aを応用した例である。本発明においても、仕口凸部110aを持つ横架材の高さの方が仕口凹部140aを持つ横架材の高さよりも高い場合には、仕口凹部140aの直下に柱材をたて、柱材の上部付近に仕口凸部110aの下部を受け入れる柱持たせ仕口凹部を備えた構造とし、前記仕口凹部を持つ前記横架材と前記柱材の前記柱持たせ仕口凹部により構成される合成凹部に対して、前記仕口凸部を組み合わせるように横架材の端部を載せるものである。
この柱持たせの構造を取り入れることにより横架材の高さが十分でない場合も本発明のテーパー加工された仕口を備えた横架材とすることができる。
The example of FIG. 13 is an example in which the joint convex portion 110a and the joint concave portion 140a according to the present invention are applied to this “pillar holding” structure. Also in the present invention, when the height of the horizontal member having the joint convex portion 110a is higher than the height of the horizontal member having the joint concave portion 140a, the column material is placed directly below the joint concave portion 140a. In addition, a structure is provided with a column recess that receives the lower portion of the joint projection 110a in the vicinity of the upper portion of the column member, and the horizontal member having the joint recess and the column of the column member are provided. The end of the horizontal member is placed so as to combine the joint convex portion with the synthetic concave portion constituted by the concave portion.
Even when the height of the horizontal member is not sufficient by adopting the structure having the pillars, the horizontal member with the tapered joint according to the present invention can be obtained.
ここで意匠面の改良について述べる。
従来の柱持たせには、柱材の上方に設けた切り欠きと仕口凸部の端部との接合部が施工後に露出してしまうことが意匠上の問題点とされていた。また、仮に柱材の上方の左右一端から左右他端に至る切り欠きを設けないようにするために、仕口凸部の大入れの幅を狭くし、柱材の上面をほぞ状に加工して接合した場合、意匠上問題となる切り欠きはなくなる一方、仕口凸部の狭くなった大入れの端面に蟻をある程度の幅で確保することが難しくなると言う問題があった。
Here, the improvement of the design surface will be described.
In order to have a conventional column, it has been a problem in design that a joint portion between a notch provided above a column member and an end portion of a joint convex portion is exposed after construction. Also, in order not to provide notches extending from the left and right ends above the column material to the other end of the column material, the width of the insertion convex portion is narrowed and the top surface of the column material is processed into a tenon shape. However, there is a problem that it becomes difficult to secure a dovetail with a certain width on the end face of the large insertion with the narrowed convex portion of the joint, while the notch that causes a design problem is eliminated.
しかし、図13の構成例では、従来の柱持たせの意匠上の問題点が改良されている。図13に示すように、大入れ120の側面部121および窪み150の側面部151に設けたテーパーで鉛直荷重の多くを仕口凹部を持つ横架材に負担させるとともに、側面部121に設けたテーパーの下端からさらに下方へと垂直にのばした矩形状の大入れを受けるように柱材にも矩形状の窪みを設けることによって鉛直荷重の一部を柱材の矩形状の窪みの底面部から柱材に負担させる構造となっている。このような加工形状を施すことにより、柱材の上方に左右一端から左右他端に至る切り欠きを設ける必要がなくなるとともに、仕口凸部110aの端部に問題なく蟻130aが加工でき、施工後には仕口凸部を持つ横架材、仕口凹部を持つ横架材、そして柱材の接合部が露出せず、従来の柱持たせに見られた意匠上の問題点が改善される。   However, in the configuration example of FIG. 13, the conventional design problem of holding a pillar is improved. As shown in FIG. 13, the taper provided on the side surface portion 121 of the large case 120 and the side surface portion 151 of the recess 150 causes a large amount of vertical load to be borne by the horizontal member having the joint recess, and is provided on the side surface portion 121. By providing a rectangular recess in the column material so that it can receive a rectangular insert extending vertically downward from the lower end of the taper, a part of the vertical load is removed from the bottom surface of the rectangular recess of the column material. It has a structure that makes the column material burden. By applying such a processed shape, it becomes unnecessary to provide notches extending from the left and right ends to the left and right other ends above the pillar material, and the ants 130a can be processed without problems at the end of the joint convex portion 110a. Later, the horizontal member with the convex part, the horizontal part with the concave part, and the joint part of the pillar material are not exposed, and the design problems seen with conventional pillars are improved. .
次に、合わせ梁(重ね梁)の構造を応用した例を説明する。
図14は、本発明の仕口凸部110a並びに仕口凹部140aに関して、いわゆる“合わせ梁”あるいは“重ね梁”の工夫を適用した例を説明する図である。
“合わせ梁”あるいは“重ね梁”と呼ばれるものは、従来の木造軸組工法住宅の仕口凸部と仕口凹部において認められる組み合わせの一つであり、仕口凸部を持つ横架材の高さの方が仕口凹部を持つ横架材の高さよりも高い場合に、仕口凹部を持つ横架材の下方に補助となる横架材を併設し、下方の補助となる横架材で仕口凸部の大入れの底面部分を支える構造である。なお、従来の矩形状の大入れを合わせ梁と接合する場合、接合部すなわち底面部は合わせ梁における上方あるいは下方のどちらか一方の梁にしか設置することができない。しかし、すでに述べているように、仕口凹部の底面部の支圧耐力は明らかに小さいため、上下片方の梁の底面部のみに鉛直荷重を負担させることは合理的でない。
Next, an example in which the structure of the laminated beams (lap beams) is applied will be described.
FIG. 14 is a diagram illustrating an example in which a so-called “matching beam” or “overlapping beam” is applied to the joint convex portion 110a and the joint concave portion 140a of the present invention.
The so-called “matching beam” or “overlapping beam” is one of the combinations recognized in the joint convex part and joint concave part of the conventional wooden framed construction method house. When the height is higher than the height of the horizontal member with the joint recess, an auxiliary horizontal member is provided below the horizontal member with the joint recess, and the lower auxiliary member It is a structure that supports the bottom part of the insertion convex part. In addition, when joining the conventional rectangular large insertion with a mating beam, a junction part, ie, a bottom face part, can be installed only in either the upper or lower beam in a mating beam. However, as already described, since the bearing strength of the bottom surface of the joint recess is obviously small, it is not reasonable to bear a vertical load only on the bottom surface of the upper and lower beams.
一方、本発明にかかる図14の構成例では、従来の合わせ梁の問題点が改良されている。図14に示すように、本発明の仕口凸部110a並びに仕口凹部140aに対して合わせ梁の考え方を応用し、仕口凹部を持つ横架材の下方に補助となる合わせ横架材を併設し、合わせ横架材の上部において、仕口凸部の下部を受け入れる“合わせ仕口凹部”を備え、仕口凹部を持つ横架材と合わせ横架材の合わせ仕口凹部により構成される合成凹部に対して、仕口凸部を組み合わせることを特徴とするものである。ここで、上下両方の梁にわたって大入れ120の側面部121および窪み150の側面部151にテーパーを設けることにより、仕口凸部110aにかかる鉛直荷重を上下の合わせ梁に負担させる構造となっている。本発明の横架材にも合わせ梁の考え方を取り入れた加工形状を施すことにより、比較的梁高さの高い仕口凸部の大入れ、すなわちせん断耐力の大きな大入れを受ける窪みの支圧耐力が、従来の矩形状の仕口凹部と比べて大きく改善できる。   On the other hand, in the configuration example of FIG. 14 according to the present invention, the problems of the conventional laminated beam are improved. As shown in FIG. 14, the concept of the mating beam is applied to the joint convex portion 110a and the joint concave portion 140a of the present invention, and an auxiliary mating horizontal member is provided below the horizontal member having the joint concave portion. It is also provided with a “mating joint recess” that accepts the lower part of the joint projection at the top of the mating horizontal member, and is composed of a horizontal member with a joint recess and a mating recess in the matching horizontal member. It is characterized in that a joint convex portion is combined with the synthetic concave portion. Here, by providing a taper on the side surface portion 121 of the large insert 120 and the side surface portion 151 of the recess 150 over both the upper and lower beams, the vertical load applied to the joint convex portion 110a is borne by the upper and lower mating beams. Yes. By applying a processing shape that incorporates the concept of a beam to the horizontal member of the present invention, it is possible to insert a convex portion with a relatively high beam height, that is, to support a hollow that receives a large insertion with a large shear strength. Yield strength can be greatly improved as compared with a conventional rectangular recess.
実施例3は、本発明の横架材のプレカット方法を用いて横架材を加工・形成する例を示したものである。プレカットとは建築現場ではなく、木材を建築現場に持ち込む前にあらかじめ木材の加工所において横架材の仕口凸部や仕口凹部を加工することをいうが、このプレカット方法において本発明独自の加工を施すものである。   Example 3 shows an example of processing and forming a horizontal member using the horizontal member pre-cutting method of the present invention. Precut is not a construction site, but means that the lugs and recesses of horizontal members are processed in advance at a wood processing plant before bringing wood into the building site. This precut method is unique to the present invention. It is to be processed.
なお、以下において、横架材のプレカットの姿勢については、木材を加工機に据え置いて天地逆に切削することも可能であり、以下の説明における天地とは逆の天地にて切削加工することも可能である。   In the following, regarding the pre-cut posture of the horizontal member, it is possible to place the wood on a processing machine and cut it upside down, or cut it upside down on the top and bottom in the following description. Is possible.
本発明の横架材のプレカット方法は、接合箇所となる大入れ120と蟻130を持つ仕口凸部110を形成する仕口凸部の加工手順と、接合箇所となる大入れ蟻掛けの窪み150、窪み160を持つ仕口凹部140を形成する仕口凹部の加工手順がある。
仕口凸部110の加工手順について述べる。仕口凸部110の加工は、さらに、大入れ120の加工手順と蟻130の加工手順の2つの手順に分かれる。
仕口凸部110の加工手順では、最初に蟻130の加工手順を行い、次に、大入れ120の加工手順を行う。
The pre-cutting method of the horizontal member of the present invention includes a processing procedure for the joint convex portion that forms the joint convex portion 110 having the large insert 120 and the dovetail 130 to be joined, and a recess for the large dovetail to be the joint location. There is a processing procedure for a joint recess for forming a joint recess 140 having 150 and a recess 160.
A processing procedure of the joint projection 110 will be described. The processing of the joint projection 110 is further divided into two procedures: a processing procedure for the large pocket 120 and a processing procedure for the dovetail 130.
In the processing procedure of the joint convex portion 110, the processing procedure of the ant 130 is first performed, and then the processing procedure of the large case 120 is performed.
まず、仕口凸部110における蟻130の加工手順を述べる。
仕口凸部110における蟻130を切削する刃の進行軌跡は、横架材の端面の左右一方から内部に進行させ、蟻130の左右一方の側面を切削した後、再び端面の左右他方に向けて進行させ、蟻130の左右他方の側面を切削して横架材100の端面の左右他方へ至る軌跡となっている。
First, the processing procedure of the ant 130 in the joint convex part 110 is described.
The trajectory of the blade that cuts the ant 130 in the projection 110 is made to advance from the left and right sides of the end face of the horizontal member to the inside, and after cutting one of the left and right sides of the ant 130, the direction is again directed to the left and right sides of the end face. And the left and right side surfaces of the ant 130 are cut to form a trajectory that reaches the left and right other end surfaces of the horizontal member 100.
ここで、実施例1に示したタイプの横架材100を加工する場合であれば、仕口凸部110における蟻130を切削する刃の進行軌跡が、略矩形の蟻130を切削する軌跡であり、蟻130の一方の側面部131を切削するために垂直方向に内部に刃が進み、蟻130の底面部132を切削するために略水平方向に刃が進み、蟻130の他方の側面部131を切削するために垂直方向に内部に刃が返ってくるという軌跡となっている。   Here, if the horizontal member 100 of the type shown in the first embodiment is to be machined, the trajectory of the blade for cutting the ant 130 in the joint projection 110 is the locus for cutting the substantially rectangular ant 130. The blade advances vertically in order to cut one side portion 131 of the ant 130, and the blade advances substantially horizontally to cut the bottom surface portion 132 of the ant 130, and the other side portion of the ant 130 In order to cut 131, the blade returns to the inside in the vertical direction.
図15(a)は、実施例1に示した矩形状の蟻130を形成するような進行軌跡にて、横架材100を切削する様子を簡単に示す図である。図15(a)において円形は回転刃の回転軌跡を示しており、矢印線は回転刃の進行により形成される回転刃による切削軌跡を示している。図15(a)に示すように、回転刃による切削軌跡はいわゆるU字状となり、蟻130が矩形状の断面を持つように形成される。
なお、蟻130は上方から見れば、水平方向において楔形になっているため、楔形が切削できるよう、回転刃は円錐台状の刃となっているものとする。
FIG. 15A is a diagram simply showing a state in which the horizontal member 100 is cut along a traveling locus that forms the rectangular ant 130 shown in the first embodiment. In FIG. 15A, the circle indicates the rotation locus of the rotary blade, and the arrow line indicates the cutting locus by the rotary blade formed by the advancement of the rotary blade. As shown in FIG. 15A, the cutting locus by the rotary blade is a so-called U-shape, and the ant 130 is formed to have a rectangular cross section.
Since the ant 130 has a wedge shape in the horizontal direction when viewed from above, it is assumed that the rotary blade has a truncated cone shape so that the wedge shape can be cut.
一方、実施例2に示したタイプの横架材100aを加工する場合であれば、仕口凸部110aにおける蟻130aを切削する刃の進行軌跡が、蟻130aがテーパーを持つように切削する軌跡であり、蟻130aの一方の側面部131aにテーパーを付けて切削するために斜め方向に内部に刃が進み、蟻130aの底面部132を切削するためにアーチ状に刃が進み、蟻130aの他方の側面部131aにテーパーを付けて切削するために斜め方向に刃が返ってくるという軌跡となっている。   On the other hand, in the case of processing the horizontal member 100a of the type shown in the second embodiment, the trajectory of the blade that cuts the ant 130a in the joint convex portion 110a is the locus that the ant 130a has a taper. In order to cut one side portion 131a of the ant 130a with a taper, the blade advances in an oblique direction, and the blade advances in an arch shape to cut the bottom surface portion 132 of the ant 130a. In order to cut the other side surface portion 131a with a taper, the blade returns in an oblique direction.
図15(b)は、実施例2に示したいわゆるV字状の蟻130aを形成するような進行軌跡にて、横架材100aを切削する様子を簡単に示す図である。図15(b)において円形は回転刃の回転軌跡を示しており、V字状の矢印線は回転刃の斜め方向の進行により形成される回転刃による切削軌跡を示している。図15(b)に示すように、回転刃による切削軌跡はいわゆるV字状となり、蟻130aの側面部131aにおいてテーパーが付けられる。
なお、蟻130aが水平方向において楔形に切削できるよう、回転刃を円錐台状の刃とする点は上記と同様である。
FIG. 15B is a diagram simply showing a state in which the horizontal member 100a is cut along a traveling locus that forms the so-called V-shaped ant 130a shown in the second embodiment. In FIG. 15B, the circle indicates the rotation locus of the rotary blade, and the V-shaped arrow line indicates the cutting locus by the rotary blade formed by the progress of the rotary blade in the oblique direction. As shown in FIG. 15B, the cutting locus by the rotary blade is a so-called V-shape, and is tapered at the side surface portion 131a of the ant 130a.
In addition, the point which makes a rotary blade a frustoconical blade so that the ant 130a can cut in a wedge shape in a horizontal direction is the same as the above.
次に、大入れ120の加工手順を述べる。
本発明の横架材のプレカット方法では、仕口凸部110の大入れ120の加工においていわゆるV字に刃の進行軌跡を取ることが特徴である。
大入れ120の加工手順は、図16に示すように、仕口凸部110における大入れ120を切削する刃の進行軌跡として、蟻130を加工後の横架材100の端面の左右一方から内部に進行させ、大入れ120の左右一方の側面を切削した後、再び端面の左右他方に向けて進行させ、大入れ120の左右他方の側面を切削して横架材の端面の左右他方へ至る軌跡において、この大入れ120の側面を切削する刃の進行軌跡がテーパーを持つように斜めに切削する軌跡であることが特徴である。ここでテーパーは、実施例1、実施例2で示したようなテーパーであり、大入れ120の側面部121の少なくとも一部において、底面に向かうほど相互の対向距離が小さくなるようなV字型のテーパーを付ける軌跡である。
Next, the processing procedure of the large case 120 will be described.
The pre-cutting method for a horizontal member according to the present invention is characterized in that the traveling locus of the blade is taken in a so-called V shape in the processing of the large insertion 120 of the joint convex portion 110.
As shown in FIG. 16, the processing procedure of the large insertion 120 is as follows: the ant 130 is moved from the left or right side of the end surface of the horizontal member 100 after the processing as the trajectory of the blade that cuts the large insertion 120 in the joint convex portion 110. After cutting the left and right side surfaces of the large case 120, it is advanced again toward the other left and right side of the end surface, and the left and right other side surfaces of the large case 120 are cut to reach the left and right other side of the end surface of the horizontal member. The trajectory is characterized in that the trajectory of the blade that cuts the side surface of the large slot 120 is a trajectory that is cut obliquely so as to have a taper. Here, the taper is a taper as shown in the first and second embodiments, and at least a part of the side surface portion 121 of the large case 120 has a V-shaped shape such that the opposing distance decreases toward the bottom surface. It is a locus to taper.
このV字カットの進行軌跡は、従来の刃の進行軌跡とはまったく異なるものである。従来の刃の進行軌跡は、大入れの一方の側面部を切削するために垂直方向に内部に刃が進み、大入れ120の底面部122を切削するために略水平方向に刃が進み、大入れ120の他方の側面部121を切削するために垂直方向に内部に刃が返ってくるという軌跡となっているが、本発明の横架材のプレカット方法では、大入れ120の側面を切削する刃の進行軌跡がテーパーを持つように斜めに切削する軌跡である。このように刃の進行軌跡がテーパーを持つように斜めとすることで実施例1に示したような横架材100または実施例2に示した横架材100aを短時間に正確に切削することが可能となる。   The progress locus of this V-shaped cut is completely different from that of a conventional blade. In the conventional blade trajectory, the blade advances in the vertical direction in order to cut one side portion of the large insert, and the blade advances in a substantially horizontal direction in order to cut the bottom surface portion 122 of the large insert 120. It is a trajectory that the blade returns to the inside in the vertical direction in order to cut the other side surface portion 121 of the case 120, but in the pre-cutting method of the horizontal member of the present invention, the side surface of the large case 120 is cut. This is a trajectory that is cut obliquely so that the trajectory of the blade has a taper. Thus, the horizontal member 100 as shown in the first embodiment or the horizontal member 100a shown in the second embodiment can be accurately cut in a short time by making the blade travel locus slant so as to have a taper. Is possible.
図16は、大入れ120の側面部121においてテーパーを設けるようにV字カットの進行軌跡にて切削する様子を簡単に示す図である。図16において円形は回転刃の回転軌跡を示しており、V字状の矢印線は回転刃の斜め方向の進行により形成される回転刃による切削軌跡を示している。図16に示すように、回転刃による切削軌跡はいわゆるV字状となり、大入れ120の側面部121においてテーパーが付けられる。   FIG. 16 is a diagram simply showing a state of cutting along the traveling locus of the V-shaped cut so as to provide a taper in the side surface portion 121 of the large case 120. In FIG. 16, the circle indicates the rotation locus of the rotary blade, and the V-shaped arrow line indicates the cutting locus by the rotary blade formed by the advancement of the rotary blade in the oblique direction. As shown in FIG. 16, the cutting trajectory by the rotary blade has a so-called V shape, and is tapered on the side surface portion 121 of the large case 120.
上記のように、本発明の横架材のプレカット方法における仕口凸部110の加工手順には、大入れ120の加工手順と、蟻130の加工手順の2つの手順があるが、この2つの加工手順の開始タイミングの工夫について述べる。   As described above, there are two procedures in the processing procedure of the joint projection 110 in the pre-cutting method of the horizontal member of the present invention, that is, the processing procedure of the large case 120 and the processing procedure of the ant 130. The device for starting the processing procedure will be described.
第1のタイミング制御は、仕口凸部110における蟻130を切削する刃の進行と大入れ120を切削する刃の進行とを逐次進行とする制御である。この場合、両手順を完全にシリアルに行うものであり、蟻130を切削する刃の進行が終了してから大入れ120を切削する刃の進行が開始することとする。つまり、図15(a)または図15(b)に示した蟻130または蟻130aを切削する加工が終了してから、図16に示す大入れ120を切削する加工を開始し、図1に示した横架材100または図10に示した横架材100aを得るものである。   The first timing control is a control in which the progress of the blade that cuts the ant 130 and the progress of the blade that cuts the large insert 120 in the joint projection 110 are sequentially advanced. In this case, both procedures are performed completely serially, and the progress of the blade for cutting the large insert 120 is started after the progress of the blade for cutting the ant 130 is completed. That is, after the process of cutting the ant 130 or the ant 130a shown in FIG. 15 (a) or 15 (b) is completed, the process of cutting the large insert 120 shown in FIG. 16 is started and shown in FIG. The horizontal member 100 or the horizontal member 100a shown in FIG. 10 is obtained.
第2のタイミング制御は、蟻130を切削する刃の進行と大入れ120を切削する刃の進行とを時間差進行とするものである。この場合、両手順の開始タイミングがずれているものの、シリアル制御ではなく、あくまで時間差制御にて、蟻130を切削する刃の進行が開始された後、終了するまでに、大入れ120を切削する刃の進行を開始する制御とする。つまり、図15(a)または図15(b)に示す蟻130または蟻130aを切削する加工が開始された後、終了するまでに、図16に示した大入れ120の加工を開始することにより、図1に示した横架材100または図10に示した横架材100aを得るものである。このように、時間差制御を行うことにより、第1のタイミング制御にかかる仕口凸部110および仕口凸部110aの加工手順よりも加工時間を短縮することができる。   In the second timing control, the progress of the blade that cuts the ant 130 and the progress of the blade that cuts the large insert 120 are set to progress in a time difference. In this case, although the start timings of both procedures are deviated, the large insert 120 is cut by the time difference control to the end after the start of the blade cutting the ant 130 is started not by serial control but by time control. The control is to start the blade. That is, by starting the processing of the large slot 120 shown in FIG. 16 after the processing for cutting the ant 130 or the ant 130a shown in FIG. 15A or FIG. The horizontal member 100 shown in FIG. 1 or the horizontal member 100a shown in FIG. 10 is obtained. As described above, by performing the time difference control, the processing time can be shortened compared to the processing procedure of the joint convex portion 110 and the joint convex portion 110a according to the first timing control.
第3のタイミング制御は、蟻130を切削する刃の進行と大入れ120を切削する刃の進行とを同時進行とする制御である。この場合、両手順を開始からパラレルに行うものであり、蟻130を切削する刃の進行が開始されると、大入れ120を切削する刃の進行も開始する。このように、パラレル制御を行うことにより、第1のタイミング制御にかかる仕口凸部110および仕口凸部110aの加工手順や、第2のタイミング制御にかかる仕口凸部110および仕口凸部110aの加工手順よりもさらに加工時間を短縮することができる。   The third timing control is a control in which the progress of the blade for cutting the ant 130 and the progress of the blade for cutting the large insert 120 are simultaneously advanced. In this case, both procedures are performed in parallel from the start, and when the blade that cuts the ant 130 is started, the blade that cuts the large insert 120 also starts. In this way, by performing parallel control, the processing procedure of the joint convex part 110 and the joint convex part 110a related to the first timing control, and the joint convex part 110 and the joint convex part related to the second timing control are performed. The processing time can be further reduced as compared with the processing procedure of the portion 110a.
次に、仕口凹部140に対する加工手順について述べる。仕口凹部140の加工は、さらに、大入れ蟻掛けの窪み150の加工手順と窪み160の加工手順の2つの手順に分かれる。
仕口凹部140の加工手順では、最初に大入れ120を受ける窪み150の加工手順を行い、次に、蟻130を受ける窪み160の加工手順を行う。
Next, a processing procedure for the joint recess 140 will be described. Processing of the recess 140 is further divided into two procedures: a processing procedure for the large dovetail recess 150 and a processing procedure for the recess 160.
In the processing procedure for the recess 140, the processing procedure for the recess 150 that receives the large slot 120 is first performed, and then the processing procedure for the recess 160 that receives the dovetail 130 is performed.
本発明の横架材のプレカット方法では、仕口凹部140の窪み150の加工においていわゆるV字に刃の進行軌跡を取ることが特徴である。
図17は、仕口凹部140の窪み150の加工手順を説明する図である。なお、この図17の加工例は天地を逆にして切削する例となっており、図1に示した横架材100および図10に示した横架材100aの仕口凹部140とは天地が逆になっている。
The pre-cutting method for a horizontal member according to the present invention is characterized in that the traveling locus of the blade is taken in a so-called V shape in the processing of the recess 150 of the joint recess 140.
FIG. 17 is a diagram illustrating a processing procedure for the recess 150 of the joint recess 140. The example of machining in FIG. 17 is an example of cutting with the top and bottom reversed, and the top and bottom of the horizontal member 100 shown in FIG. 1 and the joint recess 140 of the horizontal member 100a shown in FIG. It is reversed.
図17に示すように、仕口凹部140における窪み150を切削する刃の進行軌跡として、横架材100の端面(この例では下面)から内部に進行させ、大入れ120を受ける窪み150の左右一方の側面部151を切削した後、再び横架材100の端面に向けて進行させ、大入れ120を受ける窪み150の左右他方の側面部151を切削して横架材の端面へ至る軌跡において、この窪み150の側面を切削する刃の進行軌跡がテーパーを持つように斜めに切削する軌跡であることが特徴である。ここでテーパーは、実施例1、実施例2で示したようなテーパーであり、窪み150の側面部151の少なくとも一部において、底面に向かうほど相互の対向距離が小さくなるようなV字型のテーパーを付ける軌跡となっている。   As shown in FIG. 17, as the trajectory of the blade that cuts the recess 150 in the joint recess 140, the left and right sides of the recess 150 that is advanced from the end surface (the lower surface in this example) to the inside of the horizontal member 100 and receives the pocket 120. After cutting one side surface 151, it is advanced again toward the end surface of the horizontal member 100, and in the trajectory leading to the end surface of the horizontal member by cutting the left and right other side surface 151 of the recess 150 that receives the pocket 120. The traveling trajectory of the blade that cuts the side surface of the depression 150 is a trajectory that is cut obliquely so as to have a taper. Here, the taper is a taper as shown in the first and second embodiments, and has a V-shaped configuration such that at least a part of the side surface portion 151 of the recess 150 has a smaller opposing distance toward the bottom surface. It is a locus to taper.
このV字カットの進行軌跡は、従来の刃の進行軌跡とはまったく異なるものである。従来の刃の進行軌跡は、大入れが入る窪みの一方の側面部を切削するために垂直方向に内部に刃が進み、底面部を切削するために水平方向に刃が進み、大入れが入る窪みの他方の側面部を切削するために垂直方向に内部に刃が返ってくるという軌跡となっているが、本発明の横架材のプレカット方法では、窪み150の左右一方の側面151を切削する刃の進行軌跡がテーパーを持つように斜めに進み、底面部では刃を水平方向に移動させることなくV字状に折り返し、窪み150の左右他方の側面151を切削する軌跡である。このように刃の進行軌跡がテーパーを持つように斜めとすることで実施例1に示したような横架材100または実施例2に示した横架材100aを短時間に正確に切削することが可能となる。   The progress locus of this V-shaped cut is completely different from that of a conventional blade. The conventional blade has a trajectory in which the blade advances vertically in order to cut one side surface of the recess where the large insert enters, and the blade advances horizontally in order to cut the bottom surface portion, and the large insert enters. In order to cut the other side surface portion of the recess, the trajectory is that the blade returns to the inside in the vertical direction. However, in the pre-cut method of the horizontal member of the present invention, the left and right side surfaces 151 of the recess 150 are cut. This is a trajectory in which the traveling trajectory of the cutting blade advances obliquely so as to have a taper, is folded back in a V shape without moving the blade in the horizontal direction at the bottom portion, and the left and right side surfaces 151 of the recess 150 are cut. Thus, the horizontal member 100 as shown in the first embodiment or the horizontal member 100a shown in the second embodiment can be accurately cut in a short time by making the blade travel locus slant so as to have a taper. Is possible.
図17は、窪み150の側面部151においてテーパーを設けるようにV字カットの進行軌跡にて切削する様子を簡単に示す図である。図17において円形は回転刃の回転軌跡を示しており、V字状の矢印線は回転刃の斜め方向の進行により形成される回転刃による切削軌跡を示している。図17に示すように、回転刃による切削軌跡はいわゆるV字となり、窪み150の側面部151においてテーパーが付けられる。   FIG. 17 is a diagram simply showing a state of cutting along a V-shaped cut trajectory so as to provide a taper in the side surface portion 151 of the recess 150. In FIG. 17, the circle indicates the rotation locus of the rotary blade, and the V-shaped arrow line indicates the cutting locus by the rotary blade formed by the progress of the rotary blade in the oblique direction. As shown in FIG. 17, the cutting locus by the rotary blade is a so-called V-shape, and the side surface portion 151 of the recess 150 is tapered.
次に、仕口凹部140における窪み160の加工手順を述べる。
図18に示すように、仕口凹部140における窪み160を切削する刃の進行軌跡は、窪み150の加工後の横架材の端面(ここでは下面)から内部に進行させ、蟻130を受ける窪み160の左右一方の側面部161を切削した後、再び横架材の端面に向けて進行させ、蟻130を受ける窪み160の左右他方の側面部161を切削して横架材の端面へ至る軌跡となっている。
Next, a processing procedure for the recess 160 in the joint recess 140 will be described.
As shown in FIG. 18, the travel trajectory of the blade that cuts the recess 160 in the joint recess 140 advances from the end surface (here, the lower surface) of the horizontal member after the recess 150 is processed into the recess that receives the ant 130. After cutting one of the left and right side surfaces 161 of 160, it is advanced again toward the end surface of the horizontal member, and the left and right side surface portions 161 of the recess 160 receiving the ant 130 are cut to reach the end surface of the horizontal member. It has become.
ここで、実施例1に示したタイプの横架材100の仕口凹部140を加工する場合であれば、仕口凹部140における窪み160を切削する刃の進行軌跡が、略矩形の窪み160を切削する軌跡であり、窪み160の一方の側面部161を切削するために垂直方向に内部に刃が進み、窪み160の底面部162を切削するために水平方向に刃が進み、窪み160の他方の側面部161を切削するために垂直方向に内部に刃が返ってくるという軌跡となっている。   Here, in the case of processing the joint recess 140 of the horizontal member 100 of the type shown in the first embodiment, the traveling trajectory of the blade for cutting the recess 160 in the joint recess 140 has a substantially rectangular recess 160. This is a trajectory for cutting, and the blade advances in the vertical direction in order to cut one side surface portion 161 of the recess 160, and the blade advances in the horizontal direction in order to cut the bottom surface portion 162 of the recess 160. In order to cut the side surface portion 161, the blade returns to the inside in the vertical direction.
図18(a)は、実施例1に示した矩形状の窪み160を形成するような進行軌跡にて、窪み150加工後の横架材100を切削する様子を簡単に示す図である。図18(a)において円形は回転刃の回転軌跡を示しており、矢印線は回転刃の垂直方向の進行により形成される回転刃による切削軌跡を示している。図18(a)に示すように、回転刃による切削軌跡はいわゆる垂直となり、窪み160が矩形状の断面を持つように形成される。
なお、窪み160は上方から見れば、水平方向において楔形を受けるほぞ形状になっているため、ほぞ形状が切削できるよう、回転刃は円錐台状の刃となっているものとする。
FIG. 18A is a diagram simply showing a state of cutting the horizontal member 100 after the recess 150 is processed in a traveling locus that forms the rectangular recess 160 shown in the first embodiment. In FIG. 18A, the circle indicates the rotation locus of the rotary blade, and the arrow line indicates the cutting locus by the rotary blade formed by the vertical movement of the rotary blade. As shown in FIG. 18A, the cutting locus by the rotary blade is so-called vertical, and the recess 160 is formed to have a rectangular cross section.
Note that since the depression 160 has a tenon shape that receives a wedge shape in the horizontal direction when viewed from above, the rotary blade is assumed to be a truncated cone-like blade so that the tenon shape can be cut.
一方、実施例2に示したタイプの横架材100aの窪み160aを加工する場合であれば、仕口凹部140aにおける窪み160aを切削する刃の進行軌跡が、窪み160aがテーパーを持つように切削する軌跡であり、窪み160aの一方の側面部161aにテーパーを付けて切削するために斜め方向に内部に刃が進み、窪み160aの底面部162では刃を水平方向に移動させることなくV字状に折り返し、窪み160aの他方の側面部161aにテーパーを付けて切削するために斜め方向に刃が返ってくるという軌跡となっている。   On the other hand, if the recess 160a of the horizontal member 100a of the type shown in the second embodiment is to be machined, the trajectory of the blade that cuts the recess 160a in the joint recess 140a is cut so that the recess 160a has a taper. In order to cut one side surface portion 161a of the depression 160a with a taper, the blade advances inward in an oblique direction, and the bottom portion 162 of the depression 160a has a V shape without moving the blade in the horizontal direction. In order to cut the other side surface portion 161a of the recess 160a with a taper, the blade returns in an oblique direction.
図18(b)は、実施例2に示したいわゆるV字状の窪み160aを形成するような進行軌跡にて、窪み150加工後の横架材100aを切削する様子を簡単に示す図である。図18(b)において円形は回転刃の回転軌跡を示しており、V字状の矢印線は回転刃の斜め方向の進行により形成される回転刃による切削軌跡を示している。図18(b)に示すように、回転刃による切削軌跡はいわゆるV字状となり、窪み160aの側面部161aにおいてテーパーが付けられる。
なお、窪み160aが水平方向において楔形を受け入れるほぞ形状に切削できるよう、回転刃を円錐台状の刃とする点は上記と同様である。
FIG. 18B is a diagram simply showing a state in which the horizontal member 100a after the recess 150 is processed is cut along a traveling locus that forms the so-called V-shaped recess 160a shown in the second embodiment. . In FIG. 18B, the circle indicates the rotation trajectory of the rotary blade, and the V-shaped arrow line indicates the cutting trajectory by the rotary blade formed by the progress of the rotary blade in the oblique direction. As shown in FIG. 18B, the cutting locus by the rotary blade is a so-called V shape, and is tapered at the side surface portion 161a of the recess 160a.
In addition, the point which makes a rotary blade a frustum-shaped blade so that the hollow 160a can cut in the tenon shape which accepts a wedge shape in a horizontal direction is the same as the above.
上記のように、本発明の横架材のプレカット方法における仕口凹部140の加工手順には、大入れ120に対応する窪み150の加工手順と、蟻130に対応する窪み160の加工手順の2つの手順があるが、この2つの加工手順の開始タイミングの工夫について述べる。   As described above, in the processing procedure of the joint recess 140 in the precut method of the horizontal member of the present invention, there are two processing procedures: a processing procedure for the recess 150 corresponding to the large slot 120 and a processing procedure for the recess 160 corresponding to the ant 130. There are two procedures, but the device for the start timing of these two processing procedures will be described.
第1のタイミング制御は、仕口凹部140における窪み150を切削する刃の進行と窪み160を切削する刃の進行を逐次進行とする制御である。この場合、両手順を完全にシリアルに行うものであり、窪み150を切削する刃の進行が終了してから窪み160を切削する刃の進行が開始することとする。つまり、図17に示した窪み150を切削する加工が終了してから、図18(a)または図18(b)に示す窪み160または窪み160aの加工を行い、図1に示した横架材100の仕口凹部140または図10に示した横架材100aの仕口凹部140aを得るものである。   The first timing control is a control in which the progress of the blade that cuts the recess 150 in the joint recess 140 and the progress of the blade that cuts the recess 160 are sequentially advanced. In this case, both procedures are performed completely serially, and the progress of the blade for cutting the recess 160 is started after the progress of the blade for cutting the recess 150 is completed. That is, after the process of cutting the recess 150 shown in FIG. 17 is completed, the recess 160 or the recess 160a shown in FIG. 18A or 18B is processed, and the horizontal member shown in FIG. 100 joint recesses 140 or the joint recesses 140a of the horizontal member 100a shown in FIG. 10 are obtained.
第2のタイミング制御は、窪み150を切削する刃の進行と窪み160を切削する刃の進行が時間差進行とするものである。この場合、両手順の開始タイミングがずれているものの、シリアル制御ではなく、あくまで時間差制御にて、窪み150を切削する刃の進行が開始された後、終了するまでに、窪み160を切削する刃の進行を開始する制御とする。つまり、図17に示した窪み150を切削する加工が開始された後、終了するまでに、図18(a)または図18(b)に示す窪み160または窪み160aの加工を開始することにより、図1に示した横架材100の仕口凹部140または図10に示した横架材100aの仕口凹部140aを得るものである。このように、時間差制御を行うことにより、第1のタイミング制御にかかる仕口凹部の加工手順よりも加工時間を短縮することができる。   In the second timing control, the progress of the blade that cuts the recess 150 and the progress of the blade that cuts the recess 160 are time difference progress. In this case, although the start timings of both procedures are deviated, the blade that cuts the dent 160 before the end of the progress of the blade that cuts the dent 150 is started by time difference control instead of serial control. Control to start the progress of That is, by starting the processing of the dent 160 or the dent 160a shown in FIG. 18 (a) or FIG. 18 (b) after the process of cutting the dent 150 shown in FIG. The joint recess 140 of the horizontal member 100 shown in FIG. 1 or the joint recess 140a of the horizontal member 100a shown in FIG. 10 is obtained. In this way, by performing the time difference control, the processing time can be shortened compared to the processing procedure of the joint recess according to the first timing control.
第3のタイミング制御は、窪み150を切削する刃の進行と窪み160を切削する刃の進行を同時進行とする制御である。この場合、両手順を開始からパラレルに行うものであり、窪み150を切削する刃の進行が開始されると、窪み160を切削する刃の進行も開始する。このように、パラレル制御を行うことにより、第1のタイミング制御にかかる仕口凹部の加工手順や、第2のタイミング制御にかかる仕口凹部の加工手順よりもさらに加工時間を短縮することができる。   The third timing control is control in which the progress of the blade that cuts the recess 150 and the progress of the blade that cuts the recess 160 are simultaneously advanced. In this case, both procedures are performed in parallel from the start, and when the progress of the blade for cutting the recess 150 is started, the progress of the blade for cutting the recess 160 is also started. As described above, by performing parallel control, the processing time can be further shortened than the processing procedure of the joint recess according to the first timing control and the processing procedure of the joint recess according to the second timing control. .
以上に説明した本発明の横架材のプレカット方法を用いて横架材を加工・形成する加工処理ステップを、コンピュータにより読み取り・実行可能なコンピュータプログラムとして提供することが可能である。
そして、そのコンピュータプログラムをインストールして動作可能とした、本発明の横架材のプレカット方法を用いて横架材を加工・形成するプレカット加工機として提供することも可能である。
The processing steps for processing and forming the horizontal member using the horizontal member pre-cutting method of the present invention described above can be provided as a computer program that can be read and executed by a computer.
It is also possible to provide a precut processing machine for processing and forming a horizontal member using the horizontal member precut method of the present invention, which is operable by installing the computer program.
以上、本発明の好ましい実施形態を図示して説明してきたが、本発明は、建築資材の横架材の仕口凸部、横架材の仕口凹部として広く適用することができる。
本発明の技術的範囲を逸脱することなく種々の変更が可能であることは理解されるであろう。従って本発明の技術的範囲は添付された特許請求の範囲の記載によってのみ限定されるものである。
As mentioned above, although preferred embodiment of this invention was illustrated and demonstrated, this invention can be widely applied as a joint convex part of the horizontal member of a building material, and a joint concave part of a horizontal member.
It will be understood that various modifications can be made without departing from the scope of the invention. Therefore, the technical scope of the present invention is limited only by the description of the appended claims.
本実施例1に示す横架材の大入れおよび蟻100の構成を模式的に示した構成図である。FIG. 2 is a configuration diagram schematically showing the configuration of a horizontal insertion member and an ant 100 shown in the first embodiment. 従来型の横架材の仕口凸部の大入れと仕口凹部の大入れを受ける窪みとの組み合わせとした場合における仕口耐力を説明する図である。It is a figure explaining the joint yield strength at the time of setting it as the combination of the large insertion of the joint convex part of a conventional horizontal frame material, and the hollow which receives the large insertion of a joint concave part. 本発明の横架材の仕口凸部110の大入れ120と仕口凹部140の窪み150との組み合わせとした場合における仕口耐力を説明する図である。It is a figure explaining the joint yield strength in the case of setting it as the combination of the large insertion 120 of the joint convex part 110 and the hollow 150 of the joint concave part 140 of the horizontal member of this invention. 大入れ120および窪み150を中心とした荷重のかかり方を分析した図である。It is the figure which analyzed how to apply the load centering on the large case 120 and the hollow 150. FIG. 横架材接合部の仕口耐力Ro、2RC、RV、QA1をプロットした図(大入れのせん断面積A1を一定として大入れの高さを変化させた場合)である。It is the figure (when changing the height of the large insertion with the large insertion shear area A1 constant) plotting the joint strength Ro, 2RC, RV, and QA1 of the horizontal member joint. 横架材接合部の仕口耐力Ro、2RC、RV、QA1をプロットした図(大入れの底面部の幅を一定として大入れの高さを変化させた場合)である。It is the figure (when changing the height of a large insertion with the width | variety of the bottom of a large insertion made constant) which plotted the joint yield strength Ro, 2RC, RV, and QA1 of a horizontal member joining part. 横架材接合部の仕口耐力Ro、2RC、RV、QA1をプロットした図(大入れの高さを一定としてテーパー角度を変化させた場合)である。It is the figure (when changing a taper angle by making the height of a large insertion constant) which plotted joint proof stress Ro, 2RC, RV, and QA1 of a horizontal member joined part. 横架材接合部の仕口耐力Ro、2RC、RV、QA1をプロットした図(大入れの高さおよび底面部の幅を一定としてテーパー付けを開始する高さを変化させた場合)である。It is the figure (when changing the height which starts tapering with the height of a large insertion and the width | variety of a bottom face part made constant) plotting the joint yield strength Ro, 2RC, RV, and QA1 of a horizontal member joining part. 仕口凹部140の窪み150において、テーパー付けを開始する高さを調整した様子を比較する図である。It is a figure which compares a mode that the height which starts tapering in the hollow 150 of the mouth opening recessed part 140 was adjusted. 本実施例2に示す横架材100aの構成を模式的に示した構成図である。It is the block diagram which showed typically the structure of the horizontal member 100a shown in the present Example 2. FIG. 従来型の横架材の仕口凸部と仕口凹部の組み合わせとした場合における仕口耐力、並びに本発明の横架材の仕口凸部110aと仕口凹部140aの組み合わせとした場合における仕口耐力を説明する図である。Finishing strength in the case of the combination of the joint convex part and the joint concave part of the conventional horizontal member, and the finish in the case of the combination of the joint convex part 110a and the joint concave part 140a of the horizontal member of the present invention. It is a figure explaining mouth strength. 従来型の横架材の仕口凸部と仕口凹部の組み合わせとした場合における仕口耐力に対する本発明の横架材の仕口凸部110aと仕口凹部140aの組み合わせとした場合における仕口耐力の比率を横架材の断面寸法ごとに説明する図である。The joint in the case of the combination of the joint convex portion 110a and the joint recess 140a of the horizontal member of the present invention with respect to the joint yield strength in the case of the combination of the joint convex portion and the joint concave portion of the conventional horizontal member It is a figure explaining the ratio of yield strength for every cross-sectional dimension of a horizontal member. 従来の木造軸組工法住宅の仕口凸部と仕口凹部において認められる形状(柱持たせ)を本発明の仕口凸部110a並びに仕口凹部140aを応用することにより改良することについて説明する図である。A description will be given of improvement of the shape (providing a column) recognized in the joint convex part and the joint concave part of a conventional wooden frame construction method house by applying the joint convex part 110a and the joint concave part 140a of the present invention. FIG. 従来の木造軸組工法住宅の仕口凸部と仕口凹部(合わせ梁)において認められる形状を本発明の仕口凸部110a並びに仕口凹部140aを応用することにより改良することについて説明する図である。The figure explaining improving the shape recognized in the joint convex part and the joint concave part (matching beam) of the conventional wooden frame construction method house by applying the joint convex part 110a and the joint concave part 140a of this invention. It is. 実施例1に示した矩形状の蟻130または実施例2に示したテーパー状の蟻130aを形成する進行軌跡にて仕口凸部110または仕口凸部110aを切削する様子を示す図である。It is a figure which shows a mode that the joint convex part 110 or the joint convex part 110a is cut in the advancing locus which forms the rectangular-shaped ant 130 shown in Example 1, or the taper-shaped ant 130a shown in Example 2. FIG. . 大入れ120の側面部121においてテーパーを設けるようにV字カットの進行軌跡にて切削する様子を簡単に示す図である。It is a figure which shows simply a mode that it cuts with the advancing locus | trajectory of a V-shaped cut so that a taper may be provided in the side part 121 of the case 120. FIG. 仕口凹部140の窪み150の加工手順を説明する図である。It is a figure explaining the process sequence of the hollow 150 of the mouth opening recessed part 140. FIG. 実施例1に示した矩形状の窪み160または実施例2に示したテーパー状の窪み160aを形成する進行軌跡にて窪み150加工後の仕口凹部140または仕口凹部140aを切削する様子を示す図である。A state in which the joint recess 140 or the joint recess 140a after the recess 150 is processed is cut by a traveling locus that forms the rectangular recess 160 shown in the first embodiment or the tapered recess 160a shown in the second embodiment. FIG. 実開昭61−76003号公報に開示された従来技術における横架材を示す図である。It is a figure which shows the horizontal member in the prior art disclosed by Japanese Utility Model Laid-Open No. 61-76003.
100 横架材の大入れおよび蟻
110 仕口凸部
120 大入れ
121 側面部
122 底面部
130 蟻
131 側面部
132 底面部
140 仕口凹部
150 大入れ蟻掛けの窪み
151 側面部
152 底面部
160 大入れ蟻掛けの窪み
161 側面部
162 底面部
170 受け残り部
DESCRIPTION OF SYMBOLS 100 Large insertion of horizontal material and dovetail 110 Joint convex part 120 Large insert 121 Side part 122 Bottom part 130 Dove 131 Side part 132 Bottom part 140 Joint recess 150 Large dovetail recess 151 Side part 152 Bottom part 160 Large Dent of ant hang 161 Side part 162 Bottom part 170 Receiving remaining part

Claims (22)

  1. 接合箇所となる仕口凸部において大入れと蟻が形成され、仕口凹部において大入れ蟻掛けが形成されている横架材であって、
    前記仕口凸部の前記大入れの左右の側面部の少なくとも一部において、底面に向かうほど相互の対向距離が小さくなるようにテーパーが設けられており、前記仕口凹部の前記大入れ蟻掛けの少なくとも一部に前記大入れのテーパーに対応するテーパーが設けられ
    前記仕口凸部の前記蟻の左右の側面部の少なくとも一部において、底面に向かうほど相互の対向距離が小さくなるようにテーパーが設けられており、前記仕口凹部の前記大入れ蟻掛けの少なくとも一部に前記蟻のテーパーに対応するテーパーが設けられ、
    前記大入れの前記側面部における前記テーパーの角度と、前記蟻の前記側面部における前記テーパーの角度が異なるものであることを特徴とするテーパー加工された仕口を備えた横架材。
    A horizontal member in which a large insertion and an ant are formed in the joint convex part to be a joint location, and a large insertion ant hook is formed in the joint concave part,
    A taper is provided in at least a part of the left and right side surface portions of the insertion convex portion so that the opposing distance decreases toward the bottom surface. taper is provided corresponding to the taper of the large insertion in at least a part of,
    In at least a part of the right and left side surfaces of the ant of the joint convex portion, a taper is provided so that a mutual facing distance becomes smaller toward the bottom surface, A taper corresponding to the taper of the ant is provided at least in part,
    Horizontal member with the angle of the taper in the side face portion of the large insertion, the Joint angle of the taper which is tapered and wherein the different Der Rukoto in the side surface portion of the dovetail.
  2. 前記大入れの前記側面部における前記テーパーの角度の方が前記蟻の前記側面部における前記テーパーの角度より大きいものであることを特徴とする請求項に記載のテーパー加工された仕口を備えた横架材。 2. The tapered joint according to claim 1 , wherein an angle of the taper at the side surface portion of the large insertion is larger than an angle of the taper at the side surface portion of the ant. Horizontal frame.
  3. 前記大入れの前記側面部における前記テーパーの角度が、0度より大きく40度までの角度に調整されていることを特徴とする請求項1または2に記載のテーパー加工された仕口を備えた横架材。 3. The tapered joint according to claim 1, wherein an angle of the taper in the side portion of the large pocket is adjusted to an angle greater than 0 degree and up to 40 degrees. 4. Horizontal material.
  4. 前記大入れの前記側面部の下端同士をつなぐ底面部の加圧面の少なくとも一部をアーチ状の曲面とし、前記大入れ蟻掛けの支圧面の少なくとも一部において前記大入れの底面の加圧面に対応するアーチ状の曲面を設けたことを特徴とする請求項1から3のいずれかに記載のテーパー加工された仕口を備えた横架材。 At least a part of the pressure surface of the bottom surface part connecting the lower ends of the side surfaces of the large case is an arch-shaped curved surface, and at least a part of the pressure bearing surface of the large dovetail is connected to the pressure surface of the bottom surface of the large case horizontal member having a tapered processed Joint according to claim 1, characterized in that a corresponding arched curved surface 3.
  5. 前記蟻の前記側面部における前記テーパーの角度が、0度より大きく40度までの角度に調整されていることを特徴とする請求項1から4のいずれかに記載のテーパー加工された仕口を備えた横架材。 The tapered joint according to any one of claims 1 to 4, wherein an angle of the taper at the side surface portion of the ant is adjusted to an angle greater than 0 degree and up to 40 degrees. A horizontal member provided.
  6. 前記蟻の前記側面部の下端同士をつなぐ底面部の加圧面の少なくとも一部をアーチ状の曲面とし、前記大入れ蟻掛けの支圧面の少なくとも一部において前記蟻の底面の加圧面に対応するアーチ状の曲面を設けたことを特徴とする請求項1から5のいずれかに記載のテーパー加工された仕口を備えた横架材。 At least a part of the pressure surface of the bottom surface part connecting the lower ends of the side surfaces of the ants is an arch-shaped curved surface, and at least a part of the pressure bearing surface of the large dovetail corresponds to the pressure surface of the bottom surface of the ants. horizontal member having a tapered processed Joint according to any one of claims 1 to 5, characterized in that a arched curved surface.
  7. 前記大入れの前記側面部において、前記テーパーが設けられている部分以外に、前記テーパーが設けられていない部分を備えたものであることを特徴とする請求項1から6のいずれかに記載のテーパー加工された仕口を備えた横架材。 In the side portion of the large insertion, the portion other than the portion where the taper is provided, according to any of claims 1 to 6, characterized in that the taper is one that includes a portion not provided A horizontal member with a tapered finish.
  8. 前記大入れ蟻掛けの底面から前記仕口凹部の底面までの受け残り部の距離を50mm以上確保せしめたことを特徴とする請求項1から7のいずれかに記載のテーパー加工された仕口を備えた横架材。 The tapered mouthpiece according to any one of claims 1 to 7 , wherein a distance of a receiving remaining portion from a bottom surface of the large dovetail to a bottom surface of the mouth recess is secured by 50 mm or more. A horizontal member provided.
  9. 前記蟻の底面の前記加圧面が木材の髄付近の部位となるように横架材を切削して形成せしめたことを特徴とする請求項1から8のいずれかに記載のテーパー加工された仕口を備えた横架材。 The tapered finish according to any one of claims 1 to 8 , characterized in that a horizontal member is cut and formed so that the pressure surface of the bottom surface of the ant is a portion near the pith of wood. Horizontal member with a mouth.
  10. 前記仕口凸部を持つ前記横架材の高さの方が前記仕口凹部を持つ前記横架材の高さよりも高い場合に、前記仕口凹部の直下に柱材を建てた構造とし、
    前記柱材の上部において、前記仕口凸部の下部を受け入れる柱持たせ仕口凹部を備え、前記仕口凹部を持つ前記横架材と前記柱材の前記柱持たせ仕口凹部により構成される合成凹部に対して、前記仕口凸部を組み合わせることを特徴とする請求項1から9のいずれかに記載のテーパー加工された仕口を備えた横架材。
    When the height of the horizontal member having the joint convex portion is higher than the height of the horizontal member having the joint concave portion, a structure in which a pillar material is built immediately below the joint concave portion,
    In the upper part of the pillar material, a pillar holding recess is provided for receiving the lower part of the joint convex part, and is constituted by the horizontal member having the joint recess and the pillar holding joint recess of the pillar member. The horizontal member having a tapered mouthpiece according to any one of claims 1 to 9 , characterized in that the joint convex portion is combined with the synthetic concave portion.
  11. 前記仕口凸部を持つ前記横架材の高さの方が前記仕口凹部を持つ前記横架材の高さよりも高い場合に、前記仕口凹部を持つ前記横架材の下方に補助となる合わせ横架材を併設し、
    前記合わせ横架材の上部において、前記仕口凸部の下部を受け入れる合わせ仕口凹部を備え、前記仕口凹部を持つ前記横架材と前記合わせ横架材の前記合わせ仕口凹部により構成される合成凹部に対して、前記仕口凸部を組み合わせることを特徴とする請求項1から9のいずれかに記載のテーパー加工された仕口を備えた横架材。
    When the height of the horizontal member having the joint convex portion is higher than the height of the horizontal member having the joint concave portion, an auxiliary is provided below the horizontal member having the joint concave portion. With a matching horizontal frame,
    The upper part of the joint horizontal member is provided with a joint joint recess for receiving the lower part of the joint convex part, and is configured by the horizontal member having the joint concave part and the joint joint concave part of the joint horizontal member. The horizontal member having a tapered mouthpiece according to any one of claims 1 to 9 , characterized in that the joint convex portion is combined with the synthetic concave portion.
  12. 接合箇所となる仕口凸部において大入れと蟻が形成され、仕口凹部において大入れ蟻掛けが形成されている横架材を製作する方法であって、
    前記仕口凸部における前記大入れを切削する刃の進行軌跡が、前記横架材の端面の左右一方から内部に進行させ、前記大入れの左右一方の側面を切削した後、再び前記横架材の端面の左右他方に向けて進行させ、前記大入れの左右他方の側面を切削して前記横架材の端面の左右他方へ至る軌跡であり、
    前記仕口凸部における前記蟻を切削する刃の進行軌跡が、前記横架材の端面の左右一方から内部に進行させ、前記蟻の左右一方の側面を切削した後、再び前記横架材の端面の左右他方に向けて進行させ、前記蟻の左右他方の側面を切削して前記横架材の端面の左右他方へ至る軌跡であり、
    前記仕口凸部における前記大入れを切削する刃の進行軌跡が、前記大入れがテーパーを持つように切削する軌跡であり、前記大入れの左右の側面部の少なくとも一部において、底面に向かうほど相互の対向距離が小さくなるように前記テーパーを付けるものであり、
    前記仕口凸部における前記大入れを切削する刃の進行と前記蟻を切削する刃の進行が時間差進行であり、前記蟻を切削する刃の進行が開始された後、終了するまでに、前記大入れを切削する刃の進行が開始することを特徴とするテーパー加工された仕口を備えた横架材のプレカット方法。
    A method of manufacturing a horizontal member in which a large insertion and an ant are formed at a joint convex part to be a joint, and a large dovetail is formed at a joint concave part,
    The trajectory of the blade that cuts the large insert at the joint convex portion advances from the left or right side of the end surface of the horizontal member to the inside, cuts the left or right side of the large insert, and then the horizontal again It is a trajectory that advances toward the left and right other of the end face of the material, cuts the left and right other side surfaces of the large case, and reaches the other left and right of the end face of the horizontal member,
    The trajectory of the blade that cuts the ant at the joint convex portion advances from the left and right sides of the end surface of the horizontal member to the inside, and after cutting the left and right side surfaces of the ant, the horizontal member again It is a trajectory that advances toward the left and right other of the end surface, cuts the left and right other side of the ant, and reaches the other left and right of the end surface of the horizontal member,
    The travel trajectory of the blade that cuts the large insertion at the joint convex portion is a trajectory cutting so that the large insertion has a taper, and at least part of the left and right side surface portions of the large insertion is directed to the bottom surface. as all SANYO opposing distance each other give the taper to be smaller,
    The progression of the blade that cuts the large insert and the progression of the blade that cuts the ant at the joint convex portion is a time difference progression, and after the start of the progression of the blade that cuts the ant, A pre- cutting method for a horizontal member having a tapered finish, characterized in that the progress of a blade for cutting a large slot starts .
  13. 前記仕口凸部における前記蟻を切削する刃の進行軌跡が、略矩形の蟻を切削する軌跡である請求項12に記載のテーパー加工された仕口を備えた横架材のプレカット方法。 The method of precutting a horizontal member with a tapered mouth according to claim 12 , wherein a travel locus of a blade for cutting the ant at the joint convex portion is a locus for cutting a substantially rectangular ant.
  14. 前記仕口凸部における前記蟻を切削する刃の進行軌跡が、前記蟻がテーパーを持つように切削する軌跡であり、前記蟻の左右の側面部の少なくとも一部において、底面に向かうほど相互の対向距離が小さくなるように前記テーパーを付けるものであることを特徴とする請求項12に記載のテーパー加工された仕口を備えた横架材のプレカット方法。 The traveling trajectory of the blade for cutting the ant at the joint convex portion is a trajectory for cutting so that the ant has a taper, and at least part of the left and right side portions of the ant, The method of precutting a horizontal member with a tapered joint according to claim 12 , wherein the taper is applied so that the facing distance becomes small.
  15. 接合箇所となる仕口凸部において大入れと蟻が形成され、仕口凹部において大入れ蟻掛けが形成されている横架材を製作する方法であって、
    前記仕口凹部における前記大入れ蟻掛けのうち前記大入れを受ける凹部を切削する刃の進行軌跡が、前記横架材の端面から内部に進行させ、前記大入れを受ける凹部の左右一方の側面を切削した後、再び前記端面に向けて進行させ、前記大入れを受ける凹部の左右他方の側面を切削して前記端面へ至る軌跡であり、
    前記仕口凹部における前記大入れ蟻掛けのうち前記蟻を受け入れる凹部を切削する刃の進行軌跡が、前記端面から内部に進行させ、前記蟻を受ける凹部の左右一方の側面を切削した後、再び前記端面に向けて進行させ、前記蟻を受ける凹部の左右他方の側面を切削して前記端面へ至る軌跡であり、
    前記仕口凹部における前記大入れ蟻掛けのうち前記大入れを受ける凹部を切削する刃の進行軌跡が、テーパーを持つように前記大入れを受ける凹部を切削する軌跡であり、前記大入れを受ける凹部の左右の側面部の少なくとも一部において、底面に向かうほど相互の対向距離が小さくなるように前記テーパーを付けるものであり、
    前記仕口凹部における前記大入れ蟻掛けのうち前記大入れを受ける凹部を切削する刃の進行と前記蟻を受ける凹部を切削する刃の進行が時間差進行であり、前記大入れを受ける凹部を切削する刃の進行が開始された後、終了するまでに、前記蟻を受ける凹部を切削する刃の進行が開始することを特徴とするテーパー加工された仕口を備えた横架材のプレカット方法。
    A method of manufacturing a horizontal member in which a large insertion and an ant are formed at a joint convex part to be a joint, and a large dovetail is formed at a joint concave part,
    The trajectory of the blade that cuts the recess that receives the insertion of the insertion dovetail in the joint recess advances from the end surface of the horizontal member to the inside, and one side surface of the recess that receives the insertion Is a trajectory that advances toward the end surface again, cuts the left and right side surfaces of the recess that receives the large insertion, and reaches the end surface,
    The trajectory of the blade that cuts the recess that receives the ant among the large dovetail in the mouth recess is advanced from the end face to the inside, and after cutting the left and right side surfaces of the recess that receives the ant, again It is a trajectory that advances toward the end face, cuts the left and right side surfaces of the recess that receives the ants, and reaches the end face,
    The trajectory of the blade that cuts the concave portion that receives the large insertion in the large insertion dovetail in the joint recess is a locus that cuts the concave portion that receives the large insertion so as to have a taper, and receives the large insertion. in at least a part of the side surface portions of the left and right recesses state, and are not put the taper as opposed mutual distance becomes smaller as it goes to the bottom,
    The progression of the blade that cuts the recess receiving the dough out of the large dovetail hanging in the recessed portion of the mouth is a time difference between the progress of the blade that cuts the recess receiving the dovetail, and the recess receiving the insert is cut. A method for pre- cutting a horizontal member having a tapered joint , wherein the blade starts cutting the recess that receives the dovetail after the blade has been started and is finished .
  16. 前記テーパーを持つように前記大入れを受ける凹部を前記テーパーを持つように切削する軌跡において削り残った中央側の未切削部分を、後続の前記蟻を受け入れる凹部を切削する後続の刃の進行軌跡において併せて切削してしまうことを特徴とするテーパー加工された仕口を備えた請求項15に記載の横架材のプレカット方法。 Sharpener remaining uncut portion of the central side in the trajectory of cutting a recess for receiving the large insertion to have the taper to have the tapered, traveling locus of subsequent blade cutting a recess for receiving a subsequent said ants The pre-cutting method for a horizontal member according to claim 15 , further comprising: a tapered finish.
  17. 前記蟻を受ける凹部を切削する刃の進行軌跡が、略矩形の蟻受け部を切削する軌跡である請求項15または16に記載のテーパー加工された仕口を備えた横架材のプレカット方法。 The method of precutting a horizontal member with a tapered joint according to claim 15 or 16 , wherein the trajectory of a blade that cuts the recess receiving the dovetail is a trajectory of cutting a substantially rectangular dovetail receiving part.
  18. 前記蟻を受ける凹部を切削する刃の進行軌跡が、テーパーを持つように前記蟻を受ける凹部を切削する軌跡であり、前記蟻を受ける凹部の左右の側面部の少なくとも一部において、底面に向かうほど相互の対向距離が小さくなるように前記テーパーを付けるものであることを特徴とする請求項15または16に記載のテーパー加工された仕口を備えた横架材のプレカット方法。 The travel trajectory of the blade that cuts the recess receiving the ant is a trajectory that cuts the recess receiving the ant so as to have a taper, and at least part of the left and right side portions of the recess receiving the ant is directed to the bottom surface. The method of precutting a horizontal member with a tapered joint according to claim 15 or 16 , wherein the taper is applied so that the opposing distance becomes smaller.
  19. コンピュータプログラムにより加工処理の制御が可能な木材プレカット加工機であって、請求項1から11のいずれかに記載のテーパー加工された仕口を備えた横架材をプレカットできるようにプログラミングされた木材プレカット加工機。 A wood precut processing machine capable of controlling processing by a computer program, wherein the wood is programmed to precut a horizontal member having a tapered joint according to any one of claims 1 to 11. Pre-cut processing machine.
  20. コンピュータプログラムにより加工処理の制御が可能な木材プレカット加工機であって、請求項12から18のいずれかに記載のテーパー加工された仕口を備えた横架材をのプレカット方法の加工処理ができるようにプログラミングされた木材プレカット加工機。A wood precut processing machine capable of controlling processing by a computer program, wherein processing of the precut method for a horizontal member provided with a tapered joint according to any one of claims 12 to 18 can be performed. Programmed wood precut machine.
  21. 接合箇所となる仕口凸部において大入れと蟻が形成され、仕口凹部において大入れ蟻掛けが形成されている横架材をプレカットする木材プレカット加工機の動作を制御するコンピュータに読み取り可能なプログラムであって、A computer that controls the operation of a wood pre-cutting machine that pre-cuts a horizontal member in which a large insert and an ant are formed at the joint convex part to be joined and a large dovetail is formed in the joint concave part is readable by a computer A program,
    前記木材プレカット加工機において、請求項1から11のいずれかに記載のテーパー加工された仕口を備えた横架材をプレカットできる処理ステップが記述されたコンピュータプログラム。The computer program in which the said wood precut processing machine described the process step which can pre-cut the horizontal member provided with the tapered mouthpiece in any one of Claims 1-11 was described.
  22. 接合箇所となる仕口凸部において大入れと蟻が形成され、仕口凹部において大入れ蟻掛けが形成されている横架材をプレカットする木材プレカット加工機の動作を制御するコンピュータに読み取り可能なプログラムであって、
    前記木材プレカット加工機において、請求項12から18のいずれかに記載のテーパー加工された仕口を備えた横架材のプレカット方法の加工処理ができる処理ステップが記述されたコンピュータプログラム。
    A computer that controls the operation of a wood pre-cutting machine that pre-cuts a horizontal member in which a large insert and an ant are formed at the joint convex part to be joined and a large dovetail is formed in the joint concave part is readable by a computer A program,
    A computer program in which processing steps capable of performing the processing of the pre-cutting method for a horizontal member having a tapered joint according to any one of claims 12 to 18 in the wood pre-cut processing machine are described.
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JP2009091885A (en) * 2008-01-28 2009-04-30 Kanai:Kk Structure for joining horizontal laying member and another structural material together

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CN100479121C (en) * 2007-04-25 2009-04-15 中国科学院上海技术物理研究所 Silicon based substrate mercury cadmium telluride rheotaxial growth method

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