JP5358042B2

JP5358042B2 - Hidden hinge

Info

Publication number: JP5358042B2
Application number: JP2008109860A
Authority: JP
Inventors: 均西谷
Original assignee: 均西谷
Priority date: 2008-04-21
Filing date: 2008-04-21
Publication date: 2013-12-04
Anticipated expiration: 2028-04-21
Also published as: JP2009257034A

Abstract

<P>PROBLEM TO BE SOLVED: To provide a secret hinge having a configuration taking out a door while largely avoiding a vertical-frame this-side corner, capable of rotating and operating the door, and capable of being adapted to wide-width accommodation. <P>SOLUTION: A blade having a first axial center and a second axial center at both ends, a rotary cam having projecting sections at both ends, a vertical-frame side case fitting a frame-side guide member with a frame-side deformed groove and a first axial-center inserting hole and a door-side case fitting a door-side guide member with a door-side deformed groove and a second axial-center inserting hole are mounted. The door-side case and the vertical-frame side case are connected by the blade in a state that one projecting section of the rotary cam is engaged with the frame-side deformed groove and the other projecting section is engaged with the door-side deformed groove. The position of the blade is defined at all times to each angular position of the door by an operation slowly moving the projecting sections of the rotary cam in both the deformed grooves, and a peculiar open-close locus opened while simultaneously controlling the door and the blade is obtained. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は隠し丁番に関するものである。 The present invention relates to a hidden hinge.

従来から丁番は縦枠３０に扉２９を吊り込んで回転自在に保持するためのものであり、図９に示すように２枚の板状の羽根３の端部を軸挿入部として巻き込み、軸心を軸挿入部に通して両者を回転自在に連結して構成され、扉２９と縦枠３０に両方の羽根３を別々に固定することにより、縦枠３０に対して扉２９を開閉可能にしている。この丁番の縦枠３０と扉２９に対する取り付け状態は、軸挿入部が扉面から持ち出されて突出していることが特徴とされ、この軸挿入部を持ち出したことにより扉２９を１８０度回転させることが可能になる。 Conventionally, the hinge is for hanging the door 29 on the vertical frame 30 and holding it freely, and as shown in FIG. 9, the ends of the two plate-like blades 3 are wound as shaft insertion portions, The shaft center is passed through the shaft insertion part, and both are rotatably connected. By separately fixing both blades 3 to the door 29 and the vertical frame 30, the door 29 can be opened and closed with respect to the vertical frame 30. I have to. The hinge attached to the vertical frame 30 and the door 29 is characterized in that the shaft insertion portion is taken out from the door surface and protrudes, and the door 29 is rotated 180 degrees by taking out the shaft insertion portion. It becomes possible.

ところが、軸挿入部が持ち出されていることにより比較的平坦な面で構成されている扉面から突出した状態になり、この軸挿入部の出っ張りはデザイン面において非常に好ましく無い。さらに、丁番は通常扉の上下２カ所に配置されるため、下部の丁番の軸挿入部位置がどうしても幼児等の頭部くらいの高さに配置されてしまい、よちよち歩きの際に頭部をぶつけてしまう危険性も有している。したがって軸挿入部が扉面から突出することの無い丁番が望まれている。 However, since the shaft insertion portion is taken out, the shaft insertion portion protrudes from the door surface that is configured with a relatively flat surface, and the protrusion of the shaft insertion portion is very undesirable in terms of design. Furthermore, the hinges are usually placed at two locations above and below the door, so the shaft insertion part position of the lower hinges is inevitably placed at the height of the head of an infant, etc. There is also a risk of hitting. Therefore, there is a demand for a hinge in which the shaft insertion portion does not protrude from the door surface.

そこで従来から縦枠内面２３と扉２９の戸尻面２６の両方に掘り込んだ状態で配置し、軸挿入部を持ち出さずに扉２９を１８０度にまで開放することができる隠し丁番があり、複数の略三角形状の連結板を重ね合わせて複数のピンで組み付け、ピンを所定の溝に沿ってスライドさせながら折りたたむ構成になっている。この基本構成を有する隠し丁番は既に公知とされており、その改良品が特開平０６−１８５２５２や特開平０６−２８８１３９や特開２００２−１２１９５５等に多数開示されている。しかしこれらは連結板のスライド移動にて扉２９を持ち出しながら回転させる基本構成を有しているため、大きく持ち出そうとするとどうしても長い連結板が必要になり、扉２９の掘り込みを非常に深いものにする必要が生じる。ところが縦枠３０や扉２９の厚みにはある程度の制限があるため１８０度開いた状態での縦枠前面と扉面との隙間が接近する欠点が解消されず、縦枠前面と扉面の段差がある納まり等には対応しにくい。 Therefore, there is a hidden hinge that can be arranged in a state where it is dug in both the inner surface 23 of the vertical frame 23 and the door bottom surface 26 of the door 29 and can open the door 29 up to 180 degrees without taking out the shaft insertion portion. A plurality of substantially triangular connecting plates are stacked and assembled with a plurality of pins, and the pins are folded while being slid along a predetermined groove. Hidden hinges having this basic structure are already known, and many improvements are disclosed in Japanese Patent Laid-Open Nos. 06-185252, 06-288139, 2002-121955, and the like. However, these have the basic structure of rotating while taking out the door 29 by the sliding movement of the connecting plate, so if you try to take it out greatly, a long connecting plate is inevitably required, and the digging of the door 29 becomes very deep. Need to be done. However, since the thickness of the vertical frame 30 and the door 29 is limited to some extent, the disadvantage that the gap between the front surface of the vertical frame and the door surface in the 180 degrees open state is not solved, and the step between the front surface of the vertical frame and the door surface is not solved. It is hard to cope with a certain amount of payment.

さらには複数の移動軸が溝を同時にスライドする独特の動作自体に特徴があるため、簡素化することが非常に困難な構成になっている。また多数の部品を複数位置で連結しており、扉の垂れ下がりを無くそうと組立公差を小さくすると各連結部分に摩擦が発生して開閉動作がどうしても重くなり、逆に組立公差を大きくするとがたつきが生じて開閉動作に支障をきたすことが問題とされている。また扉の厚み部分に掘り込んだ状態で内蔵しなければならないため、どうしても個々の部品を小さくする必要が生じ、強度を確保しにくいことも解決しきれない問題点として以前残っている。 Furthermore, since the unique movement itself in which the plurality of moving shafts slide simultaneously in the groove is characteristic, it is very difficult to simplify. In addition, many parts are connected at multiple positions, and if the assembly tolerance is reduced so as to eliminate the drooping of the door, friction is generated at each connecting part, and the opening / closing operation becomes inevitably heavy, and conversely the assembly tolerance is increased. It has been a problem that a sticking occurs and hinders the opening and closing operation. In addition, since it must be built in a state where it is dug into the thickness portion of the door, it is necessary to make individual parts inevitably small, and it remains difficult to solve the problem that it is difficult to secure the strength.

また他の構成としては、複数の軸心にて複数の丁番の羽根を回動自在にあらかじめ連結しておき、複数の軸心のどれかが規則を持って交代しながら回転の中心となるものもあり、特開平０７−１５０８５０や特開平１１−８１７８４に開示されている。ここで回転の中心となる軸心を複数有する構成では、各軸心に対して羽根が不規則に回転してしまうと誤作動になり、その中でも最も顕著に現れる閉鎖時の逆折れ現象を防止することが重要である。そこで開閉時の動作に規則性を与える必要が生じるのであるが、その規則性を与える手段が困難であり、上記の構成等は規則性を与える機構自体が非常に複雑で部品点数もかなり多く、サイズ的にも比較的大きなものになり、コスト面においても割高になると考えられる。 As another configuration, a plurality of hinge blades are pivotally connected in advance by a plurality of shaft centers, and any one of the plurality of shaft centers becomes a center of rotation while changing in a regular manner. Some are disclosed in Japanese Patent Laid-Open Nos. 07-150850 and 11-81784. Here, in the configuration having a plurality of shaft centers as the center of rotation, if the blades rotate irregularly with respect to each shaft center, it malfunctions, and among them, the most noticeable reverse folding phenomenon at the time of closing is prevented. It is important to. Therefore, it is necessary to give regularity to the operation at the time of opening and closing, but the means to give the regularity is difficult, the above configuration etc. has a very complicated mechanism giving regularity and the number of parts is quite large, It will be relatively large in terms of size and will be expensive in terms of cost.

そこで本発明者は特開２００７−２１１５７７にて、閉状態から所定角度位置までとそれ以降とで、回転の中心となる軸心を変更させることにより、誤作動の無い規則に従った開閉動作を得る構成を報告した。しかしこの構成での扉の軌跡は、扉の１８０度の回転軌跡を約半分に分割し、最初は縦枠側の第一軸心を中心に回転し、その後切り替え動作により第二軸心を中心に回転する動作になるため、縦枠前面が扉面より大きく手前に出ているような納まりにおいては、前半の回転軌跡にて扉と縦枠が接触してしまうことになり、どうしても建具自体の納まりにおいて限定されることになる。つまり通常の丁番を使用する設定での枠体や扉に掘り込みだけを施してそのまま隠し丁番を使用したい場合においても対応しにくく、隠し丁番専用の建具が必要になる。そこで納まり条件においてさらに幅広く適応できるものが望まれる。
特開平０６−１８５２５２特開平０６−２８８１３９特開平０７−１５０８５０特開平１１−８１７８４特開２００２−１２１９５５特開２００７−２１１５７７ In view of this, the present inventor disclosed in Japanese Patent Application Laid-Open No. 2007-211577 has an opening / closing operation in accordance with a rule that does not cause a malfunction by changing the center of rotation from the closed state to a predetermined angular position and thereafter. Reported composition to get. However, the door trajectory in this configuration divides the 180-degree rotation trajectory of the door into about half, and first rotates around the first axis on the vertical frame side, and then centers on the second axis by switching operation. Therefore, in the case where the front of the vertical frame is larger than the door surface, the door and the vertical frame will come in contact with each other in the first half of the rotation trajectory. Limited in fit. In other words, even if you want to use the hidden hinge as it is after digging into the frame or door in the setting that uses a normal hinge, it is difficult to respond, and a dedicated fixture for the hidden hinge is required. Therefore, what can be applied more widely in the accommodation conditions is desired.
JP 06-185252 A JP 06-288139 A JP 07-150850 A JP-A-11-81784 JP 2002-121955 A JP2007-211577

本発明は上記問題点を解決するためになされたものであり、比較的安価に製作できることを前提条件とし、規則性を有した開閉動作を少ない部品点数での単純な構成で得、扉が閉じた状態では軸心を含む丁番全体が全く外部に突出せず、１８０度まで開放可能であり、扉重量に応じた十分な強度を保有する２軸タイプの隠し丁番で、縦枠手前コーナーを大きく回避しながら扉を回転動作させることができる軌跡を有し、幅広い納まりに対応できる構成の隠し丁番を提供することを目的とする。 The present invention has been made in order to solve the above-mentioned problems, and is based on the premise that it can be manufactured at a relatively low cost. A regular opening / closing operation is obtained with a simple configuration with a small number of parts, and the door is closed. In this state, the entire hinge, including the shaft center, does not protrude at all and can be opened up to 180 degrees. It is a 2-axis type hidden hinge that has sufficient strength according to the door weight. An object of the present invention is to provide a hidden hinge that has a trajectory that allows the door to be rotated while avoiding the above-mentioned problem and that can accommodate a wide range of accommodation.

本発明では上記問題点を解決するために次の技術手段を設けた。まず略箱型の縦枠側ケースと扉側ケースを設ける。丁番の羽根は上面視略コの字形状か若しくは湾曲形状で、両端部を軸挿入部として巻き込んでおくか若しくは両端部の上下方向を曲げ込んでその面上に軸心挿入孔を設けておく。そして両先端に突起部分を有し中央付近に支点軸を有した回動カムを設け、支点軸を挟んだ両方の先端部に突起部分を形成し、羽根の上下位置に水平方向に回動可能な状態で装着する。 In the present invention, the following technical means are provided to solve the above problems. First, a substantially box-shaped vertical frame side case and a door side case are provided. The hinge blade is generally U-shaped or curved when viewed from above, and either end is wound as an axial insertion part, or the vertical direction of both ends is bent to provide an axial insertion hole on the surface. deep. A rotating cam with protrusions on both ends and a fulcrum shaft near the center is provided, and protrusions are formed on both ends sandwiching the fulcrum shaft so that it can be rotated horizontally at the vertical position of the blade. Wear in proper condition.

縦枠側ケースは略箱型で上下内面に枠側案内部材を装着しておく。そして枠側案内部材には枠側異型溝と第一軸心を挿入するための軸心挿入孔を設け、縦枠の掘り込み部分の手前側の深い位置に軸心挿入孔が配置されるようにしておく。扉側ケースも同様に略箱型で上下内面に扉側案内部材を装着しておく。そして扉側案内部材には扉側異型溝と第二軸心を挿入するための軸心挿入孔を設け、扉の掘り込み部分の手前側の深い位置に軸心挿入孔が配置されるようにしておく。このとき枠側異型溝は直線部分と軸心挿入孔から一定距離離れた位置を中心とした円弧部分とそれに連続した屈曲部分とから形成し、扉側異型溝は直線部分と円弧部分とからなる略への字形状にて形成しておく。 The vertical frame side case is substantially box-shaped, and frame side guide members are mounted on the upper and lower inner surfaces. The frame side guide member is provided with a frame side atypical groove and a shaft center insertion hole for inserting the first shaft center, and the shaft center insertion hole is arranged at a deep position on the near side of the digging portion of the vertical frame. Keep it. Similarly, the door-side case is substantially box-shaped, and door-side guide members are mounted on the upper and lower inner surfaces. The door-side guide member is provided with a door-side irregular groove and a shaft center insertion hole for inserting the second shaft center, and the shaft center insertion hole is arranged at a deep position on the near side of the door digging portion. Keep it. At this time, the frame-side irregular groove is formed of a linear portion, an arc portion centered at a position away from the axial insertion hole, and a bent portion continuous therewith, and the door-side irregular groove is composed of the linear portion and the arc portion. It is formed in a substantially square shape.

そしてコの字形状の羽根の両端を両ケース内に差し込むように配置して第一軸心にて羽根と縦枠側ケースを、第二軸心にて羽根と扉側ケースを連結する。このとき回動カムの枠側の突起部分が枠側異型溝に入り込み、同時に扉側の突起部分が扉側異型溝に入り込むように設定しておく。そして縦枠内面と扉の戸尻面の掘り込み部分に両ケースを内蔵させて共に固定する。また扉が閉鎖した状態では枠側の突起部分が枠側異型溝の屈曲部に配置され、扉側の突起部分が扉側異型溝の略への字形状の片端部に配置されるように設定しておく。 Then, both ends of the U-shaped blade are arranged so as to be inserted into both cases, and the blade and the vertical frame side case are connected by the first axis, and the blade and the door side case are connected by the second axis. At this time, it is set so that the protruding portion on the frame side of the rotating cam enters the frame-side irregular groove, and at the same time, the protruding portion on the door side enters the door-side irregular groove. Then, both cases are built in the inner side of the vertical frame and the door bottom surface of the door and fixed together. In addition, when the door is closed, the projection on the frame side is arranged at the bent part of the irregular groove on the frame side, and the projection on the door side is arranged at one end of the approximate U shape of the irregular groove on the door side Keep it.

次に上記の構成からの扉の開閉に基づく動作を説明する。まず扉の閉鎖状態から扉を開放すると、当然第一軸心と第二軸心の両方を中心に回転しようとすることになる。ところが第一軸心を中心に回転する動作においては、回動カムの枠側の突起部分が枠側異型溝の屈曲部に位置しており、この屈曲部の傾斜角度が第一軸心を中心とする円周線とは大きな角度を有する状態で交差しているため、羽根の回転動作がほとんど阻止される状態になっている。したがって閉鎖状態からすぐには大きく第一軸心に対して羽根が回転することはない。ところが扉側の突起部分は扉側異型溝の端部に位置しており、この位置からの扉側異型溝の傾斜が第二軸心を中心とした円周線に比較的近い角度に設定してあるため、扉は第二軸心に対しては回転可能状態になり、最初の回転動作は主に第二軸心を中心に開始することになる。 Next, an operation based on opening and closing of the door from the above configuration will be described. First, when the door is opened from the closed state of the door, it will naturally rotate around both the first axis and the second axis. However, in the operation of rotating around the first axis, the protrusion on the frame side of the rotating cam is located at the bent part of the frame-side irregular groove, and the inclination angle of this bent part is centered on the first axis. Since it intersects with the circumferential line having a large angle, the rotational movement of the blades is almost prevented. Therefore, immediately after the closed state, the blade does not rotate with respect to the first axis. However, the protrusion on the door side is located at the end of the door-side irregular groove, and the inclination of the door-side irregular groove from this position is set at an angle relatively close to the circumferential line around the second axis. Therefore, the door becomes rotatable with respect to the second axis, and the first rotation operation starts mainly around the second axis.

この開放初期段階の扉の第二軸心を中心とした動作で回動カムの扉側の突起部分が扉側異型溝を徐々に移動するように略への字の形状の傾斜を設定し、さらにこの移動により回動カムを少しずつ回転させるように構成しておく。すると扉側の突起部分が扉側異型溝の略への字の交差位置に近づいた付近で枠側の突起部分が枠側異型溝の屈曲部分から円弧部分に移動するように設定しておく。そしてこの枠側異型溝の円弧部分は第一軸心から比較的少ない距離のみ離れた位置を中心とした円周線上に設定しておく。すると扉が所定角度位置にまで開いた段階で今度は主に羽根が第一軸心を中心に回転することになり、さらに大きく扉は開放する。この動作中においても扉は第二軸心を中心に少しずつ回転を続けており、その後枠側の突起部分は枠側異型溝の円弧部分から直線部分に移動し、同時に扉側の突起部分は扉側異型溝の略への字のコーナー部分を通過して逆の直線部分に移動しながら扉を１８０度にまで開放することが可能になる。 Set the inclination of the substantially U shape so that the protrusion on the door side of the rotating cam gradually moves in the door-side irregular groove by the operation around the second axis of the door in the initial stage of opening, Further, the rotation cam is rotated little by little by this movement. Then, it is set so that the frame-side protruding portion moves from the bent portion of the frame-side atypical groove to the arc portion in the vicinity of the door-side protruding portion approaching the intersection of the substantially odd-shaped shape of the door-side atypical groove. The arc portion of the frame-side atypical groove is set on a circumferential line centered on a position away from the first axis by a relatively small distance. Then, at the stage where the door is opened to a predetermined angular position, the blades are mainly rotated around the first axis, and the door is further opened. Even during this operation, the door continues to rotate little by little around the second axis, after which the projection on the frame side moves from the arc part of the frame-side profile groove to the straight part, and at the same time the projection on the door side It is possible to open the door up to 180 degrees while moving to the opposite straight line portion through the corner portion of the substantially U-shaped groove on the door side atypical groove.

つまり、扉の各々の角度位置に対して常に羽根の位置が確定されるように前記両異型溝の形状を設定するとよく、扉の開閉動作により回動カム両端の突起部分が両異型溝内を徐々に無段階移動をする動作で持って羽根の回転動作を規制することができる。その結果、扉の閉状態から所定角度位置までの初期段階では羽根はあまり回転せずに第二軸心を中心に扉のみが回転し、その後連続して扉も少しづつ回転移動しながら今度は羽根が大きく回動する動作を得、引き続き扉と羽根が同時に所定量ずつ回転することで縦枠手前コーナーを大きく迂回しながら１８０度まで開放可能とする扉の固有の開閉軌跡を得ることができる。したがって縦枠前面が大きく出た、通常の丁番を使用する納まり等にも十分対応させることが可能になる。 In other words, the shape of the both-shaped grooves should be set so that the position of the blades is always fixed with respect to each angular position of the door, and the protrusions at both ends of the rotating cam are moved in the both-shaped grooves by opening and closing the door. It is possible to regulate the rotational movement of the blade by gradually moving in a stepless manner. As a result, in the initial stage from the closed state of the door to the predetermined angle position, the blade does not rotate so much, only the door rotates around the second axis, and then the door continuously rotates and moves little by little. The blade can be pivoted, and the door and blade can be rotated simultaneously by a predetermined amount to obtain a unique opening / closing locus of the door that can be opened up to 180 degrees while largely bypassing the front corner of the vertical frame. . Accordingly, it is possible to sufficiently cope with a storage using a normal hinge with a large front face of the vertical frame.

また回動カムの突起部分の形状に関しては円滑に異型溝内を移動できる構成であれば特に制限されるものではないが、突起部分の形状が回動カムの面に対して垂直方向に円柱状のピンを突出させて異型溝の内側面をピンの外周が接触した状態で移動する構成の場合は、異型溝の内側面を樹脂等のすべりの良い材質で被覆しておくと良い。さらには垂直方向のピンに対して転がり動作するローラーを嵌め、異型溝内面にローラー外面が接触して転動しながら移動する構成が磨耗に関してはより優れていると想定される。 Further, the shape of the protruding portion of the rotating cam is not particularly limited as long as it can smoothly move in the irregular groove, but the shape of the protruding portion is cylindrical in the direction perpendicular to the surface of the rotating cam. In the case where the inner surface of the modified groove is moved in a state in which the outer periphery of the pin is in contact with the outer surface of the pin, the inner surface of the modified groove is preferably covered with a material having good slippage such as a resin. Furthermore, it is assumed that a configuration in which a roller that rolls against a vertical pin is fitted and the roller outer surface is in contact with the inner surface of the modified groove and moves while rolling is superior in terms of wear.

さらに隠し丁番としては枠体に対する扉の位置を施工後に建付け調整する機構も必要であり、調整の方向は通常上下左右前後の３次元とされている。そこで本発明の隠し丁番に建付け調整を装備させるにおいては、扉側ケース若しくは縦枠側ケースを外ケースと内ケースの二重重ね若しくはさらに中間ケースを有した３重重ねにて構成し、外ケースを扉や枠縦の掘り込み部分に固定し、外ケースに対して中間ケースや内ケースが、中間ケースに対して内ケースが各方向に調整できるように構成する手段が優れている。 Furthermore, as a hidden hinge, a mechanism for installing and adjusting the position of the door with respect to the frame after construction is necessary, and the direction of adjustment is usually three-dimensional in the vertical and horizontal directions. Therefore, in order to equip the hidden hinge of the present invention with the installation adjustment, the door side case or the vertical frame side case is constituted by a double overlap of the outer case and the inner case or a triple overlap having an intermediate case, There is excellent means for fixing the outer case to a door or a vertical digging portion of the frame so that the intermediate case and the inner case can be adjusted in each direction with respect to the outer case and the inner case with respect to the intermediate case.

これら調整の手段は多数考えられるが、前後調整の一例としては外ケースと内ケース間に偏心カムを組み付けておき、内外ケースの固定手段を解除後に偏心カムを回して前後位置調整する機構がよい。また左右調整は外ケースに対して複数のねじを用いて内ケースを左右方向に浮かせた状態で固定できるようにし、内外両ケースの隙間をねじにより調整することで左右位置調整する機構がよい。また上下調整は傾斜面を有する傾斜部材を２個上下方向に面対させ、上下調整ねじにて片方の傾斜部材を左右に移動させる動作により他方の傾斜部材を上下動作させる機構を外ケースに組み込んでおき、外ケースに対して内ケースの上下位置を調整する構成が優れている。 A number of these adjustment means can be considered, but as an example of the longitudinal adjustment, an eccentric cam is assembled between the outer case and the inner case, and a mechanism for adjusting the longitudinal position by turning the eccentric cam after releasing the fixing means of the inner and outer cases is good. . In addition, a mechanism for adjusting the left and right positions by using a plurality of screws to fix the inner case so that the inner case is floated in the left and right directions and adjusting the gap between the inner and outer cases with the screws is preferable. For vertical adjustment, two inclined members with inclined surfaces are faced in the vertical direction, and a mechanism for moving the other inclined member up and down with the vertical adjustment screw is installed in the outer case. In addition, the configuration for adjusting the vertical position of the inner case with respect to the outer case is excellent.

また上記での羽根の軌跡においては、扉を約９０度開放した状態で羽根の角度が約４５度前後回転した位置になり、その結果扉側ケースや縦枠側ケースの奥の面が見える状態になる。したがって前述の前後調整のための偏心カムや固定ねじ、または左右調整のための調整ねじをこの奥面部分に配置することができる。このことは比較的上下に長い形状になりがちな隠し丁番の中央付近を移動させる動作で建付け調整できることになり、調整ねじの数量も非常に少なくてよく効果的である。 In the blade trajectory described above, the blade angle is about 45 degrees when the door is opened about 90 degrees, and as a result, the back surface of the door side case and the vertical frame side case can be seen. become. Therefore, the eccentric cam and the fixing screw for the above-described front-rear adjustment, or the adjustment screw for the left-right adjustment can be disposed on the back surface portion. This means that the installation can be adjusted by moving the center of the hidden hinge, which tends to be relatively long in the vertical direction, and the number of adjusting screws is very small and effective.

また枠体に扉を吊り込むときの施工性も重要である。特に本発明の隠し丁番においては９０度開放位置における扉の戸尻面位置が上枠前面を完全に超えるぐらいまで持ち出されていないため、扉を大きく持ち上げてから枠体に引っ掛けるような手段が用いにくい。そこで縦枠側ケース若しくは扉側ケースのどちらか片方を外ケースと内ケースに分割し、片方に弾性爪を有する凸部分を設け、他方に弾性爪が挿入される凹部分を設けておく。そして両者を水平方向からはめ込む操作で一旦保持し、その後固定手段を用いて内ケースと外ケースを完全に組み付けるような、横方向での吊り込み動作を用いる構成が適している。 In addition, workability when the door is suspended from the frame is also important. In particular, in the hidden hinge of the present invention, the door bottom surface position of the door in the 90 degree open position is not taken out to the extent that it completely exceeds the front surface of the upper frame. It is difficult to use. Therefore, either the vertical frame side case or the door side case is divided into an outer case and an inner case, and a convex portion having an elastic claw is provided on one side, and a concave portion into which the elastic claw is inserted is provided on the other side. A configuration using a horizontal suspending operation in which both are temporarily held by an operation of fitting them in the horizontal direction and then the inner case and the outer case are completely assembled using the fixing means is suitable.

軸心を含む丁番全体を縦枠と扉に内蔵したためデザイン性を向上することができ、同時に扉面から出っ張った突起状の軸心をも排除できることになり、安全性をも高めることが可能になる。また単純な形状の２個のケースと、回動カムを装着した両端に軸挿入部を有した略コの字形状の羽根を２本の軸心で連結するだけでよく、部品点数も少なく非常に簡単な構成であり、組み付けも容易で非常に安価に製作することが可能である。 The entire hinge, including the shaft center, is built into the vertical frame and the door, improving design, and at the same time eliminating the protruding shaft center that protrudes from the door surface, improving safety. become. In addition, it is only necessary to connect two simple-shaped cases and a substantially U-shaped blade having a shaft insertion part at both ends to which a rotating cam is attached, with two shaft centers, and the number of parts is very small. Therefore, it is easy to assemble and can be manufactured at a very low cost.

扉の各々の角度位置に対して羽根の位置が確定されるように両異型溝の形状を設定し、扉の開閉に従って回転カムの突起部分が両異型溝内を徐々に移動する動作により、扉と羽根の互いの角度位置を任意に設定することができる。その結果扉の閉状態から所定角度位置までの初期段階では羽根はほとんど回転せずに第二軸心を中心に扉のみが回転し、その後連続して扉が回転移動しながら羽根も同時に回動する理想的な動作が可能になり、縦枠手前コーナーを大きく迂回しながら１８０度まで開放可能とする扉の固有の開閉軌跡が得られる。したがって縦枠前面が大きく出た納まり等にも十分対応させることが可能になる。また異型溝の形状を適宜変更することで扉の開閉軌跡を調整することも可能である。 The shape of both atypical grooves is set so that the position of the blades is determined for each angular position of the door, and the protrusion of the rotating cam gradually moves in both the atypical grooves as the door is opened and closed. And the mutual angular position of the blades can be arbitrarily set. As a result, in the initial stage from the closed state of the door to the predetermined angle position, the blade hardly rotates, only the door rotates around the second axis, and then the blade rotates simultaneously while the door continuously rotates. An ideal opening / closing locus of the door that can be opened up to 180 degrees while largely bypassing the front corner of the vertical frame is obtained. Accordingly, it is possible to sufficiently cope with a case where the front surface of the vertical frame is large. It is also possible to adjust the opening / closing locus of the door by appropriately changing the shape of the atypical groove.

回動カムの突起部分の形状においては、突起部分が回動カムの面に対して垂直方向に円柱状のピンを突出させて異型溝内をピンが接触した状態で移動する構成の場合は、異型溝の内側面を樹脂等のすべりの良い材質で被覆しておくと良く、コスト面で優位である。また垂直方向のピンに対してさらに転がり動作するローラーを嵌め、異型溝内面にローラー外面が接触して転動しながら移動する構成は磨耗に対してより優れていると想定され、耐久性において効果的である。 In the shape of the protruding portion of the rotating cam, the protruding portion projects a cylindrical pin in a direction perpendicular to the surface of the rotating cam and moves in a state where the pin is in contact with the atypical groove. It is better to cover the inner surface of the irregular groove with a material having good sliding properties such as resin, which is advantageous in terms of cost. In addition, it is assumed that the configuration in which a roller that rolls further on the vertical pin is fitted and the outer surface of the roller contacts the inner surface of the atypical groove and moves while rolling is assumed to be superior to wear, and is effective in durability. Is.

従来の丁番と同様に板状の羽根で荷重を受けるため強度を確保し易く、羽根の板厚を増すか、若しくは羽根の上下方向の長さを伸ばすことでさらに強度を上げることが簡単であり、さらには羽根自体が箱形状に曲がっているため捻じれ等の荷重に対しても強い構成になっている。 As with conventional hinges, it is easy to ensure strength because it receives loads with plate-like blades, and it is easy to increase the strength by increasing the blade thickness or increasing the vertical length of the blades. Furthermore, since the blades themselves are bent in a box shape, the structure is strong against loads such as twisting.

縦枠側ケース若しくは扉側ケースを外ケースと内ケースとからなる２重構造にし、外ケースに対して内ケースが前後方向、左右方向、上下方向に移動可能な調整機構を設けることで、施工後に枠体に対して扉を適正な位置に建付け調整することが可能になる。また扉を約９０度開放した状態で羽根の角度が約４５度前後回転した位置になり、その結果前後や左右の調整ねじをこの奥面部分に配置することができる。このことは比較的上下に長い形状になりがちな隠し丁番の中央付近を移動させる動作でバランスの良い建付け調整が可能になり、調整ねじの数量も非常に少なくてよく効果的である。 The vertical frame side case or door side case has a double structure consisting of an outer case and an inner case, and the inner case is provided with an adjustment mechanism that allows the inner case to move in the front-rear direction, left-right direction, and up-down direction. Later, the door can be installed and adjusted at an appropriate position with respect to the frame. Further, the blade angle is about 45 degrees when the door is opened about 90 degrees, and as a result, the front and rear and left and right adjustment screws can be arranged on this back surface portion. This makes it possible to perform a well-balanced installation adjustment by moving the vicinity of the center of the hidden hinge, which tends to be relatively long in the vertical direction, and the number of adjusting screws is very small and effective.

以下図面に基づいて本発明の隠し丁番に関する実施の形態を説明する。図１〜図８は本発明の実施形態を示しており、図１は本発明の隠し丁番の分解斜視図である。図２は枠側案内部材５を取り付けた状態の縦枠側ケース１の上面図で、図３は扉側案内部材６を取り付けた状態の扉側ケース２の上面図である。図４は羽根３の上面図であり、図５は回動カム４の斜視図である。図１に示すように縦枠側ケース１は略箱型で上下に取り付け孔２０を備えたつば面２１を有しており、扉２９が開く方向を手前側、逆の戸当たり２７のある方向を奥側とし、掘り込みの深さ方向を深い浅いにて表記すると、枠側異型溝７と第一軸心挿入孔９を有する枠側案内部材５を、第一軸心挿入孔９が縦枠側ケース１の上下内面の手前側の深い位置になるように装着しておく。 Embodiments relating to the hidden hinge of the present invention will be described below with reference to the drawings. 1 to 8 show an embodiment of the present invention, and FIG. 1 is an exploded perspective view of a hidden hinge of the present invention. 2 is a top view of the vertical frame side case 1 with the frame side guide member 5 attached thereto, and FIG. 3 is a top view of the door side case 2 with the door side guide member 6 attached thereto. FIG. 4 is a top view of the blade 3, and FIG. 5 is a perspective view of the rotating cam 4. As shown in FIG. 1, the vertical frame side case 1 is substantially box-shaped and has a flange surface 21 provided with mounting holes 20 at the top and bottom. The direction in which the door 29 opens is the front side, and the direction with the reverse door stop 27 is present. Is the rear side, and the depth direction of digging is expressed as deep shallow, the frame side guide member 5 having the frame side atypical groove 7 and the first axis insertion hole 9 is the first axis insertion hole 9 in the vertical direction. The frame side case 1 is mounted so as to be in a deep position on the near side of the upper and lower inner surfaces.

枠側案内部材５は板状で第一軸心挿入孔９と、屈曲部分１２と円弧部分１１と直線部分１３から形成された枠側異型溝７を有している。そして枠側異型溝７の円弧部分１１は第一軸心挿入孔９から一定距離離れた位置を中心とした偏心した円弧形状になっており、屈曲部分１２と直線部分１３に繋がっている。そして図１に示すように縦枠側ケース１の箱形状の上下内面に各々同じ向きに枠側案内部材５を装着する。 The frame-side guide member 5 is plate-shaped and has a first axial insertion hole 9 and a frame-side irregular groove 7 formed from a bent portion 12, an arc portion 11, and a straight portion 13. The arc-shaped portion 11 of the frame-side modified groove 7 has an eccentric arc shape centered at a position away from the first axial insertion hole 9 and is connected to the bent portion 12 and the straight portion 13. And as shown in FIG. 1, the frame side guide member 5 is each attached to the box-shaped upper and lower inner surfaces of the vertical frame side case 1 in the same direction.

扉側ケース２も図１に示すように略箱型で上下に取り付け孔２０を備えたつば面２１を有している。図３は扉側ケース２に扉側案内部材６を組み付けた状態の上面図であり、略への字形状の扉側異型溝８と第二軸心挿入孔１０を有した板状の扉側案内部材６を箱型部分の上下内面に第二軸心挿入孔１０が手前側の深い位置になるように各々同じ向きに装着しておく。このときの扉側異型溝８の配置は、略への字形状の凹んだ方が第二軸心挿入孔１０の方に向いている状態に形成しておく。図３では扉側異型溝８を２本の直線部分１３と円弧部分１１で形成しているが、大きく湾曲した形状や１本の直線部分１３と円弧部分１１を有する略への字形状であっても良い。 As shown in FIG. 1, the door-side case 2 is also substantially box-shaped and has a flange surface 21 with upper and lower mounting holes 20. FIG. 3 is a top view of the door-side case 2 with the door-side guide member 6 assembled thereto, and a plate-like door side having a substantially U-shaped door-side modified groove 8 and a second axial insertion hole 10. The guide members 6 are mounted in the same direction on the upper and lower inner surfaces of the box-shaped portion so that the second axial insertion hole 10 is at a deep position on the near side. In this case, the door-side atypical groove 8 is arranged such that the substantially concave shape of the letter-shape is directed toward the second axial insertion hole 10. In FIG. 3, the door-side irregular groove 8 is formed by two straight portions 13 and an arc portion 11, but has a substantially curved shape or a substantially square shape having one straight portion 13 and the arc portion 11. May be.

羽根３は図１及び図４に示すように略箱形状で、上下面を水平に曲げ込んで第一軸心挿入孔９と第二軸心挿入孔１０を設けておく。さらに両側面も上面視略コの字形状若しくは湾曲形状にしておき全体として一方向のみ開いた箱形状にて形成する。また図示はしないが両端部を巻き込んで丁番のように両軸心挿入孔を形成しておく形状であっても良い。そして上下水平面の中央部分に回動カム４の回転の支点となる回動カム用軸挿入孔１４を設けておく。本発明では羽根３を金属の板材を曲げ込んで形成しており、羽根３の厚みや上下方向の長さは任意であり、厚みを増すか、もしくは上下方向の長さを変えることで羽根３及び丁番全体の強度を任意に設定することができる。 As shown in FIGS. 1 and 4, the blade 3 has a substantially box shape, and is provided with a first axial insertion hole 9 and a second axial insertion hole 10 by bending the upper and lower surfaces horizontally. Further, both side surfaces are formed in a substantially U-shaped or curved shape in a top view, and are formed in a box shape opened as a whole only in one direction. Moreover, although not shown in figure, the shape which winds up both ends and forms both axial center insertion holes like a hinge may be sufficient. Then, a rotation cam shaft insertion hole 14 serving as a fulcrum of rotation of the rotation cam 4 is provided in the central portion of the upper and lower horizontal planes. In the present invention, the blade 3 is formed by bending a metal plate. The thickness of the blade 3 and the length in the vertical direction are arbitrary, and the blade 3 is increased by increasing the thickness or changing the length in the vertical direction. And the intensity | strength of the whole hinge can be set arbitrarily.

また図１及び図５に示すように回動カム４は板状で、回転動作の支点となる回動カム用軸挿入孔１４を挟んで両側に突起部分１５を有している。そして回動カム４を羽根３の回動カム用軸心挿入孔１４に被せるように配置して回動カム用軸心１６にて装着する。したがって回動カム４は羽根３に対して水平方向に回転動作できることになる。ここで扉２９の開閉の際には、突起部分１５の側辺が両異型溝の内側面に接触しながら移動する動作になる。そこで突起部分１５の形状に制限は無いが、図５(ａ)では突起部分１５として円柱状のピンを回動カム４の面に垂直に立てたのみの構成を示しており、この構成では異型溝の内側面に樹脂等のすべりの良いもので被覆しておくと良い。また図１と図５(ｂ)ではさらにピン状の突起部分１５に対して転がり動作するローラー１９を嵌めた構成を示しており、ローラー１９の外面が異型溝内面に接触して転動しながら移動する動作になり、磨耗や耐久性に優れていると想定される。そして図１に示すように第一軸心１７と第二軸心１８を羽根３の上下に配置された第一軸心挿入孔９と第二軸心挿入孔１０に貫通させた状態で挿入しておく。 As shown in FIGS. 1 and 5, the rotating cam 4 is plate-shaped and has projecting portions 15 on both sides of a rotating cam shaft insertion hole 14 that serves as a fulcrum for rotating operation. Then, the rotating cam 4 is disposed so as to cover the rotating cam shaft insertion hole 14 of the blade 3 and is mounted by the rotating cam shaft 16. Therefore, the rotating cam 4 can rotate in the horizontal direction with respect to the blade 3. Here, when the door 29 is opened and closed, the side of the protruding portion 15 moves while contacting the inner side surfaces of the two different shaped grooves. Therefore, the shape of the protruding portion 15 is not limited, but FIG. 5A shows a configuration in which a cylindrical pin is merely set up as the protruding portion 15 perpendicularly to the surface of the rotating cam 4. It is preferable to cover the inner surface of the groove with a resin or the like having good sliding properties. 1 and 5 (b) show a configuration in which a roller 19 that performs a rolling operation is further fitted to the pin-like protruding portion 15, and the outer surface of the roller 19 is in contact with the inner surface of the irregular groove while rolling. It is assumed that it is moving and has excellent wear and durability. Then, as shown in FIG. 1, the first shaft center 17 and the second shaft center 18 are inserted through the first shaft center insertion hole 9 and the second shaft center insertion hole 10 arranged above and below the blade 3. Keep it.

次に羽根３の両端を扉側ケース２内と縦枠側ケース１内に挿入し、回動カム４の両突起部分１５が扉側異型溝８と枠側異型溝７に挿入した状態で第一軸心１７にて縦枠側ケース１と羽根３を、第二軸心１８にて扉側ケース２と羽根３を回動自在に装着する。この際に羽根３と両ケース間に図１に示すような耐摩耗性のよい樹脂等のワッシャ２２を挟みこんでおくと良い。また各部材の組みつけ方法においては特に限定されるものではなく、どのような順序にて実施しても問題ない。ここで板状の枠側案内部材５や扉側案内部材６を用いずに、縦枠側ケース１と扉側ケース２の箱形状の上下面に直接軸心挿入孔や異型溝を形成する方法も可能であるが、組み立て易さや縦枠側ケース１及び扉側ケース２自体の強度の確保等を考慮すると、扉側案内部材６と枠側案内部材５を用いる構成の方が確実性において優位と想定される。 Next, both ends of the blade 3 are inserted into the door-side case 2 and the vertical frame-side case 1, and both projecting portions 15 of the rotating cam 4 are inserted into the door-side modified groove 8 and the frame-side modified groove 7. The vertical frame side case 1 and the blades 3 are rotatably mounted on the single axis 17, and the door side case 2 and the blades 3 are rotatably mounted on the second axis 18. At this time, a washer 22 such as a resin having good wear resistance as shown in FIG. 1 is preferably sandwiched between the blade 3 and both cases. The method for assembling each member is not particularly limited, and there is no problem even if it is carried out in any order. Here, without using the plate-like frame-side guide member 5 and the door-side guide member 6, a method for forming the axial insertion hole and the irregular groove directly on the box-shaped upper and lower surfaces of the vertical frame-side case 1 and the door-side case 2. However, considering the ease of assembly and ensuring the strength of the vertical frame side case 1 and the door side case 2 itself, the configuration using the door side guide member 6 and the frame side guide member 5 is superior in reliability. It is assumed.

図６は扉側案内部材６を取り付けた扉側ケース２と枠側案内部材５を取り付けた縦枠側ケース１と回動カム４を装着した羽根３を組付け、扉２９と縦枠３０の掘り込み部分２８に装着した状態の上面図であり、扉側ケース２と縦枠側ケース１のつば面２１が近接して向かい合った扉２９が閉鎖している納まり状態を示している。図６に示すように扉２９が閉じた状態での羽根３は、縦枠側ケース１の第一軸心１７から縦枠側ケース１の背面に沿って戸当たり２７方向に伸び、次に扉２９の戸尻面２６側に曲げるか若しくは湾曲させ、さらに扉側ケース２の背面に沿って再度曲げ込んで第二軸心１８に至るコの字形状になる。そしてこの閉鎖状態で片方の回動カム４の突起部分１５が枠側異型溝７の屈曲部分１２端部に配置され、他方の突起部分１５がへの字形状の扉側異型溝８の端部に配置されている。 FIG. 6 shows the door side case 2 to which the door side guide member 6 is attached, the vertical frame side case 1 to which the frame side guide member 5 is attached, and the blade 3 to which the rotating cam 4 is attached. It is a top view of the state mounted to the digging portion 28, and shows a stored state in which the door 29 where the flange surface 21 of the door side case 2 and the vertical frame side case 1 are close to each other and facing each other is closed. As shown in FIG. 6, the blade 3 in a state in which the door 29 is closed extends from the first axis 17 of the vertical frame side case 1 along the back surface of the vertical frame side case 1 in the door stop 27 direction, and then the door. 29 is bent or curved toward the door bottom surface 26, and is bent again along the back surface of the door-side case 2 to form a U-shape that reaches the second axis 18. In this closed state, the protruding portion 15 of one of the rotating cams 4 is arranged at the end of the bent portion 12 of the frame-side profile groove 7, and the other protruding portion 15 is the end of the U-shaped door-side profile groove 8. Is arranged.

図７は図６に示す扉２９の閉鎖状態からの開閉の軌跡を示しており、図７(ａ)は図６と同じ閉鎖状態を示している。この閉鎖状態から扉２９を開くと、当然第一軸心１７と第二軸心１８の両方若しくはどちらかを中心に回転しようとする。しかし枠側の突起部分１５が第一軸心１７を中心とする円周線に対して大きな傾斜角度を有する屈曲部分１２に入り込んでいるため、羽根３が先に第一軸心１７を中心に回転することはない。ところが扉側の突起部分１５が挿入されている扉側異型溝８の片側の直線部分１３の傾斜は比較的第二軸心１８を中心とする円周線に近いため突起部分１５が扉側異型溝８を滑り、回動カム４を少しずつ移動させながら扉２９が第二軸心１８を中心に先に回転する図７(ｂ)に示す動作になる。 FIG. 7 shows the locus of opening and closing from the closed state of the door 29 shown in FIG. 6, and FIG. 7 (a) shows the same closed state as FIG. When the door 29 is opened from this closed state, it naturally tries to rotate around both or either of the first axis 17 and the second axis 18. However, since the projecting portion 15 on the frame side enters the bent portion 12 having a large inclination angle with respect to the circumferential line centering on the first axis 17, the blade 3 is first centered on the first axis 17. It does not rotate. However, since the inclination of the linear portion 13 on one side of the door-side modified groove 8 into which the door-side protruding portion 15 is inserted is relatively close to the circumferential line centering on the second axis 18, the protruding portion 15 is the door-side modified shape. The operation shown in FIG. 7B is performed in which the door 29 rotates first around the second axis 18 while sliding the groove 8 and moving the rotating cam 4 little by little.

そして引き続き扉２９の回転動作でさらに扉側の突起部分１５が扉側異型溝８内を移動する。すると図７(ｃ)に示すように枠側の突起部分１５が枠側異型溝７の円弧部分１１付近にまで移動した状態になり、この枠側異型溝７の円弧部分１１は比較的第一軸心１７の円周線と近い形状を有しているため、今度は枠側の突起部分１５が円弧部分１１内を滑りながら図７(ｄ)に示すように羽根３が大きく第一軸心１７を中心に回転することになる。同時に扉２９も僅かに第二軸心１８を中心に回転する動作は継続されており、図７(ｅ)に示す約９０度まで開放する。つまり、閉鎖状態からの初期段階は主として扉２９のみが第二軸心１８を中心に約４５度程度まで開放し、その後主として羽根３が第一軸心１７を中心に回転して約９０度にまで開放する動作が得られる。 Then, the door-side protruding portion 15 further moves in the door-side irregular groove 8 by the rotation operation of the door 29. Then, as shown in FIG. 7C, the frame-side protruding portion 15 is moved to the vicinity of the arc portion 11 of the frame-side modified groove 7, and the arc-shaped portion 11 of the frame-side modified groove 7 is relatively first. Since it has a shape close to the circumferential line of the shaft center 17, the blade 3 has a large first shaft center as shown in FIG. It will rotate around 17. At the same time, the operation of rotating the door 29 slightly around the second axis 18 is continued and opens to about 90 degrees as shown in FIG. That is, in the initial stage from the closed state, only the door 29 mainly opens about 45 degrees around the second axis 18, and then the blade 3 rotates mainly about the first axis 17 to about 90 degrees. The operation of opening up to is obtained.

そしてさらに連続して図７(ｆ)までは比較的羽根３が主に回転し、この位置付近にて扉２９が縦枠手前コーナー２４に接近する。ところが図７(ｆ)位置にて扉側の突起部分１５が扉側異型溝８のへの字形状の交差部分に配置されており、逆の直線部分１３がより第二軸心を中心とした円周線に近い傾斜になるため、図７(ｇ)付近までにおいては第二軸心１８を中心とした扉２９の回転動作も大きくなり、その結果縦枠手前コーナー２４を大きく迂回するような動作が得られる。そして図７(ｇ)で枠側の突起部分１５が枠側異型溝７の直線部分１３に移動してきているため、最終段階である１８０度までは第一軸心１７と第二軸心１８両方を中心としたほぼ均等な回転動作を得ることができる。 Further, the blades 3 mainly rotate relatively continuously until FIG. 7F, and the door 29 approaches the front corner 24 of the vertical frame near this position. However, at the position shown in FIG. 7 (f), the door-side protruding portion 15 is arranged at the intersection of the U-shaped groove of the door-side modified groove 8, and the reverse straight portion 13 is more centered on the second axis. Since the inclination is close to the circumferential line, the rotational movement of the door 29 around the second axis 18 is increased until the vicinity of FIG. 7 (g), and as a result, the front corner 24 of the vertical frame is largely bypassed. Operation is obtained. 7 (g), since the frame-side protruding portion 15 has moved to the linear portion 13 of the frame-side modified groove 7, both the first axis 17 and the second axis 18 are up to 180 degrees as the final stage. A substantially uniform rotational movement around the center can be obtained.

この一連の軌跡の中で比較的重要視されるのは、まず初期開放段階での図７(ｃ)までの動作である。たとえば先に第一軸心１７を中心に回転しながら同時に第二軸心１８に対しても回転してしまうと、扉手前コーナー２５が縦枠内面２３に当接してしまうことになる。したがって扉手前コーナー２５が縦枠内面２３に接近する位置を越えた図７(ｃ)まで先に第二軸心１８を中心に扉２９を回転させることが必要になる。そして図７(ｃ)から図７(ｅ)で羽根３が大きく回転することにより扉２９を手前方向に持ち出し、その後次に重要な軌跡である図７(ｆ)から図７(ｇ)で、扉２９が第二軸心１８を中心に回転させることで縦枠手前コーナー２４を大きく回りこませる動作が得られ、縦枠３０と扉２９が干渉することなく１８０度にまで開放することが可能になる。また突起部分１５は両異型溝に挿入されて移動するため１８０度開放状態からの閉鎖動作においても全く同じ軌跡を戻る動作が得られることになる。 In this series of trajectories, the operation up to FIG. 7C at the initial opening stage is first regarded as relatively important. For example, if the first axis 17 is rotated about the first axis 17 and simultaneously the second axis 18 is also rotated, the door front corner 25 comes into contact with the inner surface 23 of the vertical frame. Therefore, it is necessary to first rotate the door 29 around the second axis 18 until the front corner 25 of the door passes the position where the corner 25 approaches the inner surface 23 of the vertical frame. 7 (c) to 7 (e), the blades 3 are greatly rotated to bring the door 29 forward, and then the next important locus in FIGS. 7 (f) to 7 (g). By rotating the door 29 about the second axis 18, an operation of greatly turning the front corner 24 of the vertical frame can be obtained, and the vertical frame 30 and the door 29 can be opened to 180 degrees without interfering with each other. become. Further, since the projecting portion 15 is inserted into both the different type grooves and moves, an operation of returning the same trajectory can be obtained even in the closing operation from the 180 degree open state.

つまり本発明の軌跡動作では枠側異型溝７と扉側異型溝８内を回動カム４の両突起部分１５が規制されて動くことになり、その結果縦枠３０に対する羽根３の所定角度位置においては必ず羽根３に対する扉２９の角度位置も固有の配置として決定されることが最も重要な特徴である。したがって枠側異型溝７と扉側異型溝８の形状により様々な開放軌跡が設定できることになる。その設定作業において重要な点は、回動カム４の突起部分１５が接触する枠側異型溝７と扉側異型溝８の位置が両方同時に第一軸心１７と第二軸心１８の円周線上に近くなることを極力排除することであると想定される。 That is, in the trajectory operation of the present invention, both projecting portions 15 of the rotating cam 4 are regulated and moved in the frame-side profile groove 7 and the door-side profile groove 8, and as a result, the blade 3 has a predetermined angular position with respect to the vertical frame 30. It is the most important feature that the angular position of the door 29 with respect to the blade 3 is always determined as a unique arrangement. Therefore, various opening trajectories can be set according to the shapes of the frame-side modified groove 7 and the door-side modified groove 8. The important point in the setting operation is that the positions of the frame-side profile groove 7 and the door-side profile groove 8 with which the protruding portion 15 of the rotating cam 4 contacts are simultaneously the circumferences of the first axis 17 and the second axis 18. It is assumed that it is to eliminate as close to the line as possible.

つまり図７の軌跡は縦枠３０に対して扉２９をもっとも良い条件で開閉させるために設定した軌跡であり、扉面に対して縦枠前面がかなり手前に出ている納まりにおいても十分対応させることが可能になる。また全体に渡っての開閉動作においても扉側異型溝８と枠側異型溝７内を徐々に無段階的に突起部分１５が移動するため非常に滑らかな開閉動作が得られる。そして突起部分１５にローラー１９をかぶせて転がりを用いる図５(ｂ)に示す構成ではさらに高耐久のものにすることが可能である。 In other words, the trajectory in FIG. 7 is a trajectory set to open and close the door 29 with the best condition with respect to the vertical frame 30, and sufficiently accommodates even in a compartment where the front of the vertical frame is considerably in front of the door surface. It becomes possible. Further, even in the entire opening / closing operation, the protruding portion 15 gradually moves steplessly in the door-side modified groove 8 and the frame-side modified groove 7, so that a very smooth opening / closing operation can be obtained. The configuration shown in FIG. 5B in which the roller 19 is covered with the protruding portion 15 and rolling can be made more durable.

しかし実際の製品においては両軸心と両軸心挿入孔、回動カム用軸心１６と回動カム用軸心挿入孔１４、両異型溝と両突起部分１５等の嵌合部分で発生する作動に必要なクリアランスにより若干のガタツキが生じてしまうと想定される。そこで本発明の機構の特徴である扉側異型溝８と枠側異型溝７を任意の形状にて設定することにより様々な開閉軌跡を可能とすることを利用した、前述の僅かにではあるが残ってしまう丁番自体のガタツキに対する対処方法の一例を図８にて説明する。ここで通常でのドア用の丁番はドアの上下に２個装着するのが一般的であり、扉２９の重心は丁番位置から遥かに離れた扉２９の幅の中心付近位置になるため全体としてはモーメント荷重がかかる。したがって９０度開放した状態では上の丁番には手前に引っ張られる力が、下の丁番には奥方向に押すような力が掛かる。すると全く同じ軌跡を有する丁番を上下に装着すると、別々に荷重のかかるほうにガタツキ分ずつ引っ張られるため、扉２９の垂れ下がりが発生することも懸念される。 However, in an actual product, it is generated at the fitting portion of both shaft centers and both shaft insertion holes, the pivot cam shaft 16 and the pivot cam shaft insertion hole 14, both modified grooves and both projecting portions 15 and the like. It is assumed that a slight backlash occurs due to the clearance required for operation. In view of the above, the above-described slightly utilizing the fact that the door side profile groove 8 and the frame side profile groove 7 which are the features of the mechanism of the present invention can be set in various shapes to enable various opening and closing trajectories. An example of a method for dealing with the rattling of the remaining hinge itself will be described with reference to FIG. Here, it is common to install two hinges for doors at the top and bottom of the door, and the center of gravity of the door 29 is located near the center of the width of the door 29 far away from the hinge position. As a whole, moment load is applied. Therefore, in the state opened 90 degrees, a force that pulls forward is applied to the upper hinge, and a force that pushes in the rear direction is applied to the lower hinge. Then, if hinges having exactly the same trajectory are mounted on the top and bottom, the doors 29 may be drooped because the hinges are pulled apart by the backlash when the load is applied separately.

図８(ａ)に示す扉２９の９０度開放位置での戸当たり２７から戸尻面２６までの距離はAｍｍである。次に上下とも同じ軌跡の図８(ａ)に示す丁番にて扉２９を吊り込んで実際に発生するガタツキの寸法Lｍｍを測定する。そして図８(ｂ)に示すように９０度開閉した状態での戸当たり２７から戸尻面２６までの距離がA−Lｍｍになるような異型溝を有する丁番を設定する。そして上下の丁番をガタツキを相殺するような配置、つまり図８(ｂ)の丁番を上に、図８(ａ)の丁番を下に取り付けることで扉２９の垂れ下がりを吸収させることができる。この原理で開閉全域にわたってガタツキを補正するような両異型溝を設定するとよく、１枚のドアの上と下の隠し丁番の軌跡を変えることで扉２９をより水平に保持した状態で開閉させることも可能になる。 The distance from the door stop 27 to the door bottom surface 26 at the 90-degree open position of the door 29 shown in FIG. 8A is Amm. Next, the door L is suspended by the hinge shown in FIG. 8A having the same trajectory in both the upper and lower sides, and the size Lmm of the looseness actually generated is measured. Then, as shown in FIG. 8 (b), a hinge having an atypical groove is set such that the distance from the door stop 27 to the door bottom surface 26 in the state of opening and closing 90 degrees is A-Lmm. Then, the upper and lower hinges are arranged so as to cancel backlash, that is, the hinges of FIG. 8B are attached to the top and the hinges of FIG. it can. It is good to set both atypical grooves to correct rattling over the entire opening / closing area based on this principle. It is also possible to open / close the door 29 in a state where the door 29 is held more horizontally by changing the locus of the hidden hinge above and below one door. It becomes possible.

また、隠し丁番としては枠体に対する扉２９の位置を施工後に建付け調整する機構も必要であり、調整の方向は通常上下左右前後の３次元とされている。そこで本発明の隠し丁番に建付け調整を装備させる場合は、扉側ケース２若しくは縦枠側ケース１を外ケースと内ケースの二重重ね若しくはさらに中間ケースを有した３重重ねにて構成し、外ケースを扉２９や枠縦３０の掘り込み部分２８に固定し、外ケースに対して中間ケースや内ケースが、中間ケースに対して内ケースが各方向に調整できるように構成する手段が優れている。ここでドアの納まりにおいては、廊下等で見られる９０度程度しか扉２９を開放できない納まりも多く、したがって建付け調整の操作は扉２９を９０度程度開いた状態で実施できなければならない。しかし従来の隠し丁番においては９０度開放位置では縦枠側ケース１や扉側ケース２の内部ほぼ全体に羽根３が挿入されている場合が多く、その結果各ケースのつば面２１付近の位置にて建付け調整を実施しなければならないことになる。 Further, the hidden hinge requires a mechanism for adjusting the position of the door 29 with respect to the frame body after construction, and the direction of adjustment is usually three-dimensional in the vertical and horizontal directions. Therefore, in the case where the hidden hinge of the present invention is equipped with installation adjustment, the door side case 2 or the vertical frame side case 1 is composed of a double overlap of the outer case and the inner case or a triple overlap having an intermediate case. The outer case is fixed to the door 29 or the digging portion 28 of the frame longitudinal 30, and the intermediate case and the inner case can be adjusted in each direction with respect to the intermediate case and the intermediate case can be adjusted in each direction with respect to the intermediate case. Is excellent. Here, there are many cases where the door 29 can be opened only about 90 degrees as seen in a corridor or the like. Therefore, it is necessary to perform the installation adjustment operation with the door 29 opened about 90 degrees. However, in the conventional hidden hinge, the blade 3 is often inserted almost entirely inside the vertical frame side case 1 and the door side case 2 at the 90 ° open position, and as a result, the position near the flange surface 21 of each case. It will be necessary to carry out installation adjustments.

しかし本発明の隠し丁番での羽根３の軌跡は、図８に示すように扉２９を約９０度開放した状態で羽根３の角度が約４５度前後回転した位置になり、したがって扉側ケース２や縦枠側ケース１の奥の面が約半分ずつ程度ではあるが見える状態になる。したがって前後調整や左右調整に用いる調整ねじをこの奥面部分に配置することができる。このことは比較的上下に長い形状になりがちな隠し丁番の中央付近を移動させるバランスの良い動作で建付け調整できることになり、調整ねじの数量も非常に少なくてよく効果的である。 However, the trajectory of the blade 3 in the hidden hinge of the present invention is the position where the angle of the blade 3 is rotated about 45 degrees with the door 29 opened about 90 degrees as shown in FIG. 2 and the back surface of the vertical frame side case 1 can be seen though about half each. Therefore, an adjustment screw used for front-rear adjustment and left-right adjustment can be disposed on the rear surface portion. This means that the installation can be adjusted with a balanced operation of moving around the center of the hidden hinge, which tends to be relatively long in the vertical direction, and the number of adjustment screws is very small and effective.

また縦枠３０に扉２９を吊り込むときの施工性も重要である。通常上枠前面の位置は縦枠前面とほぼ同じ位置であるため、本発明の隠し丁番においては図８に示すように９０度開放した位置においても扉２９が上枠前面を完全に超えた位置にまで持ち出された状態にならない。したがって通常の丁番のように扉２９を大きく持ち上げてから落とし込む吊り込み手段では扉２９の戸尻面２６上部が上枠の下面に当たってしまうことになる。そこで図示はしないが縦枠側ケース１若しくは扉側ケース２のどちらか片方を外ケースと内ケースに分割し、片方に弾性爪を有する凸部分を設け、他方に弾性爪が挿入される凹部分を設けておく。そして両者を水平方向からはめ込んで一旦保持し、その後固定手段を用いて内ケースと外ケースを完全に組み付ける、横方向のはめ込み動作にて吊り込みを実施する構成を装備させると比較的簡単に施工することができると想定される。 The workability when the door 29 is suspended from the vertical frame 30 is also important. Normally, the position of the front face of the upper frame is almost the same position as the front face of the vertical frame. Therefore, in the hidden hinge of the present invention, the door 29 completely exceeds the front face of the upper frame even when it is opened 90 degrees as shown in FIG. It is not brought out to the position. Therefore, the upper part of the door bottom surface 26 of the door 29 hits the lower surface of the upper frame in the hanging means that lifts the door 29 after it is largely lifted like a normal hinge. Therefore, although not shown in the drawing, either the vertical frame side case 1 or the door side case 2 is divided into an outer case and an inner case, a convex portion having an elastic claw is provided on one side, and a concave portion into which the elastic claw is inserted on the other side. Is provided. Then, it is relatively easy to install it by installing it in the horizontal direction so that both the inner case and the outer case are completely assembled using the fixing means, and then the inner case and the outer case are completely assembled. It is assumed that you can.

本発明の隠し丁番の分解斜視図である。It is a disassembled perspective view of the hidden hinge of this invention. 本発明の隠し丁番の、縦枠側ケースに枠側案内部材を装着した状態の上面図である。It is a top view of the state which mounted | wore the vertical frame side case with the frame side guide member of the hidden hinge of this invention. 本発明の隠し丁番の、扉側ケースに扉側案内部材を装着した状態の上面図である。It is a top view of the state which attached the door side guide member to the door side case of the hidden hinge of this invention. 本発明の隠し丁番の、羽根の上面図である。It is a top view of the blade | wing of the hidden hinge of this invention. 本発明の隠し丁番の、回動カムの上面図である。It is a top view of the rotation cam of the hidden hinge of this invention. 本発明の隠し丁番の、扉の閉状態での納まり上面図である。It is the accommodation top view in the closed state of the door of the hidden hinge of this invention. 本発明の隠し丁番の、扉の開閉に基づく上面軌跡図である。It is an upper surface locus | trajectory figure based on opening and closing of a door of the hidden hinge of this invention. 本発明の隠し丁番の、別の異型溝を用いた軌跡での９０度位置を示す上面図である。It is a top view which shows the 90 degree position in the locus | trajectory using another atypical groove | channel of the hidden hinge of this invention. 従来の持ち出し吊りの丁番の開閉軌跡図である。It is an opening-and-closing locus | trajectory figure of the hinge of the conventional carrying-out hanging.

符号の説明Explanation of symbols

１縦枠側ケース
２扉側ケース
３羽根
４回動カム
５枠側案内部材
６扉側案内部材
７枠側異型溝
８扉側異型溝
９第一軸心挿入孔
１０第二軸心挿入孔
１１円弧部分
１２屈曲部分
１３直線部分
１４回動カム用軸心挿入孔
１５突起部分
１６回動カム用軸心
１７第一軸心
１８第二軸心
１９ローラー
２０取り付け孔
２１つば面
２２ワッシャ
２３縦枠内面
２４縦枠手前コーナー
２５扉手前コーナー
２６戸尻面
２７戸当たり
２８掘り込み部分
２９扉
３０縦枠 DESCRIPTION OF SYMBOLS 1 Vertical frame side case 2 Door side case 3 Blade | wing 4 Rotating cam 5 Frame side guide member 6 Door side guide member 7 Frame side irregular groove 8 Door side irregular groove 9 1st axis insertion hole 10 2nd axis insertion hole 11 Arc portion 12 Bent portion 13 Linear portion 14 Rotating cam shaft insertion hole 15 Projection portion 16 Rotating cam shaft 17 First shaft center 18 Second shaft center 19 Roller 20 Mounting hole 21 Collar surface 22 Washer 23 Vertical frame Inner surface 24 Vertical frame front corner 25 Door front corner 26 Door bottom surface 27 Door contact 28 Dimmed part 29 Door 30 Vertical frame

Claims

略コの字形状で両端に第一軸心と第二軸心を有した羽根と、両端に突起部分を有する回動カムと、第一軸心挿入孔を有した枠側案内部材を装着した縦枠側ケースと、第二軸心挿入孔を有した扉側案内部材を装着した扉側ケースを設け、水平方向に回転可能な状態で回動カムを羽根に組み付け、縦枠側ケースに第一軸心を配置し、扉側ケースに第二軸心を配置して扉側ケースと縦枠側ケースを羽根にて連結した構成の、規則性を持った開閉動作を有する丁番であって、枠側案内部材に屈曲部分と略円弧部分と直線部分とからなる連続した形状の枠側異型溝を設け、扉側案内部材に屈曲部分と略円弧部分と直線部分とからなる連続した形状の扉側異型溝を設け、回動カムの片方の突起部分を枠側異型溝に、かつ他方の突起部分を扉側異型溝に係合した状態で組み付け、扉の開閉動作で回転カムの両端の突起部分が両異型溝内を徐々に移動する動作を得、前記両異型溝の形状を扉の各々の角度位置に対して羽根が適した角度位置に確定されるように設定することで、扉の閉状態からの初期開放段階では主に第二軸心を中心に扉が回転して羽根は僅かにのみ回転する動作を得、その後９０度付近までは今度は主に羽根が第一軸心を中心に回転移動しながらも同時に扉も微量回転する動作を得、さらに羽根と扉が同時に所定量ずつ回転する動作を得ることにより、縦枠手前コーナーを大きく回避しながら１８０度まで開放可能とする扉の固有の開閉軌跡を得ることを特徴とする隠し丁番。
A substantially U-shaped blade having a first axis and a second axis at both ends, a rotating cam having projecting portions at both ends, and a frame side guide member having a first axis insertion hole were mounted. A vertical frame side case and a door side case equipped with a door side guide member having a second axis insertion hole are provided, and a rotating cam is assembled to the blade in a state of being rotatable in the horizontal direction. A hinge that has a regular opening and closing action, with a single axis, a second axis on the door case, and a door side case and vertical frame side case connected by blades. The frame-side guide member is provided with a continuous frame-shaped irregular groove composed of a bent portion, a substantially arc portion, and a straight portion, and the door-side guide member has a continuous shape composed of a bent portion, a substantially arc portion, and a straight portion. A door-side irregular groove is provided, and one protrusion of the rotating cam is engaged with the frame-side irregular groove and the other protrusion is engaged with the door-side irregular groove. Assembled in the state to obtain an operation protruding portion of both ends of the rotating cam in opening and closing operation of the door moves slowly in both atypical grooves, vanes suitable shapes of both cross-shaped groove for each angular position of the door In the initial opening stage from the closed state of the door, the door rotates mainly about the second axis and the blades rotate only slightly, Up to around 90 degrees, this time, mainly by obtaining the operation that the blades rotate around the first axis and the door also rotates a small amount at the same time, and further the operation that the blades and the door rotate simultaneously by a predetermined amount, A hidden hinge characterized by obtaining a unique opening and closing trajectory of the door that can be opened up to 180 degrees while largely avoiding the front corner of the vertical frame .