JP5189059B2

JP5189059B2 - Door hinge

Info

Publication number: JP5189059B2
Application number: JP2009244941A
Authority: JP
Inventors: 哲也白田; 正美今野; 秀幸清野; 隆之来栖
Original assignee: Nitto Kohki Co Ltd
Current assignee: Nitto Kohki Co Ltd
Priority date: 2009-10-23
Filing date: 2009-10-23
Publication date: 2013-04-24
Anticipated expiration: 2029-10-23
Also published as: JP2011089349A

Description

本発明はドア及びドア枠の一方に取り付けられてドア及びドア枠の他方に設けられたピボット孔に嵌合されるピボット軸を備えるドアヒンジドアヒンジに関する。 The present invention relates to a door hinge door hinge including a pivot shaft attached to one of a door and a door frame and fitted into a pivot hole provided in the other of the door and the door frame.

この種のドアヒンジでは、ドアのドア枠への取付作業を容易且つ安全に行うことができるようにするために、ドアの上端部に取り付けられたドアヒンジのピボット軸を一旦ドア内に引き込んでおき、ピボット軸とドア枠に設けられたピボット孔との位置を整合させた後に、バネの付勢力を利用してピボット軸を突出させてピボット孔に挿入するようにしたものがある（特許文献１及び２参照）。 In this type of door hinge, in order to be able to easily and safely attach the door to the door frame, the pivot shaft of the door hinge attached to the upper end of the door is once pulled into the door, After aligning the position of the pivot shaft and the pivot hole provided in the door frame, there is one in which the pivot shaft is projected using the biasing force of a spring and inserted into the pivot hole (Patent Documents 1 and 2). 2).

実公平６−１００６６号Reality 6-10066 特開２００７−１４６３６２号JP 2007-146362 A

上記のようなドアヒンジにおいては、ピボット軸を受け入れるピボット孔の直径が、ピボット軸の直径と略同じとされ、ドアの回動の際にガタツキが生じないようにしている。このため、ピボット軸とピボット孔との整合が正確でないと、バネの付勢力によって突出されたピボット軸がピボット孔の縁に係合してしまい、該ピボット孔内に適正に挿入されないことが生じうる。この場合、突出したピボット軸はピボット孔の設けられているドア上部枠に係合されることになるために、作業者がピボット軸の不完全な装着をすぐには気づかない場合があり、このため、その後で、ドアが倒れて作業者が怪我をしたりする虞がある。 In the door hinge as described above, the diameter of the pivot hole that receives the pivot shaft is substantially the same as the diameter of the pivot shaft, so that no rattling occurs when the door rotates. For this reason, if the alignment between the pivot shaft and the pivot hole is not accurate, the pivot shaft protruded by the biasing force of the spring engages with the edge of the pivot hole and is not properly inserted into the pivot hole. sell. In this case, since the protruding pivot shaft is engaged with the door upper frame provided with the pivot hole, the operator may not immediately notice the incomplete mounting of the pivot shaft. Therefore, after that, there is a possibility that the door may fall and the worker may be injured.

本発明はこのような点に鑑み、ピボット軸を確実且つ適正にピボット孔内に挿入できるようにするドアヒンジを提供することを目的とする。 In view of the above, an object of the present invention is to provide a door hinge that allows a pivot shaft to be reliably and properly inserted into a pivot hole.

本発明は、ドア及びドア枠の一方に取り付けられてドア及びドア枠の他方に設けられたピボット孔に嵌合されるピボット軸を備えるドアヒンジにおいて、ピボット軸が
ピボット孔内に嵌合される大径軸部と、
該大径軸部と同軸状とされ該大径ピボット部よりも小径とされた小径軸部と、
を備え、引き込み位置と、該引き込み位置から突出してピボット孔内に嵌合される突出位置との間で変位可能とされており、ピボット孔に嵌合されるときに、該小径軸部が該大径軸部より先に嵌合可能とされていることを特徴とするドアヒンジを提供する。 The present invention relates to a door hinge including a pivot shaft that is attached to one of a door and a door frame and is fitted to a pivot hole provided in the other of the door and the door frame, and the pivot shaft is fitted into the pivot hole. A diameter shaft,
A small-diameter shaft portion that is coaxial with the large-diameter shaft portion and has a smaller diameter than the large-diameter pivot portion;
And is displaceable between a retracted position and a projecting position protruding from the retracted position and fitted into the pivot hole, and when the small diameter shaft portion is fitted into the pivot hole, Provided is a door hinge that can be fitted before a large-diameter shaft portion.

このドアヒンジでは、はじめにピボット軸の小径軸部がピボット孔に挿入されるようにしているために、ピボット軸とピボット孔との軸線方向での整合が完全でなくとも、小径軸部がピボット孔内に確実に嵌合するのを可能とする。これに続いて行われる大径軸部のピボット孔内への嵌合が適正でない場合でも、小径軸部がピボット孔内に嵌合しているために、ドアが倒れてしまうといった虞がない。また、小径軸部だけの嵌合がなされている場合には、ドアを回動した場合にその動きにガタツキが生じるために、ピボット軸のピボット孔への嵌合が適正でないことが分かり、その時点で大径軸部をピボット孔内へ嵌合させて当該ピボット軸のピボット孔への適正な嵌合を行うことができる。 In this door hinge, since the small-diameter shaft portion of the pivot shaft is first inserted into the pivot hole, even if the pivot shaft and the pivot hole are not perfectly aligned in the axial direction, the small-diameter shaft portion is in the pivot hole. It is possible to securely fit. Even if the subsequent large-diameter shaft portion is not properly fitted into the pivot hole, the door does not fall down because the small-diameter shaft portion is fitted into the pivot hole. In addition, when only the small-diameter shaft portion is fitted, it is found that when the door is rotated, the movement is unstable, so that the fitting of the pivot shaft to the pivot hole is not appropriate. At this time, the large-diameter shaft portion can be fitted into the pivot hole, and the pivot shaft can be properly fitted into the pivot hole.

具体的には、
ドア及びドア枠の上記一方に固定され、ピボット軸をその軸線方向で変位可能に収納するガイド部材と、
該ピボット軸を、該ガイド部材内の該引き込み位置から該ガイド部材の外側に突出した該突出位置に駆動する駆動装置を備えるようにすることができる。 In particular,
A guide member fixed to the one of the door and the door frame and storing the pivot shaft so as to be displaceable in the axial direction;
The pivot shaft may be provided with a driving device that drives the pivot shaft from the retracted position in the guide member to the projecting position that projects outward from the guide member.

より具体的には、
該大径軸部と該小径軸部とが相対的に軸線方向で変位可能とされて該ガイド部材内に収納され、該駆動装置が、該小径軸部を該突出位置に駆動する第１駆動部材と、該大径軸部を該突出位置に駆動する第２駆動部材とを有するようにすることができる。 More specifically,
The large-diameter shaft portion and the small-diameter shaft portion are relatively displaceable in the axial direction and housed in the guide member, and the driving device drives the small-diameter shaft portion to the protruding position. A member and a second driving member that drives the large-diameter shaft portion to the protruding position can be provided.

要するに、小径軸部と大径軸部とを別部材とし、はじめに小径軸部を駆動してピボット孔に嵌合させ、次に大径軸部を駆動してピボット孔内に嵌合させるようにするものである。 In short, the small-diameter shaft portion and the large-diameter shaft portion are separate members, and the small-diameter shaft portion is first driven to fit into the pivot hole, and then the large-diameter shaft portion is driven to fit into the pivot hole. To do.

この場合、該大径軸部がその軸線方向で延びる筒状部分を有し、該小径軸部が該筒状部分内に収納され、該第１駆動部材が、該筒状部分内に設定されて該小径軸部を該突出位置に向けて付勢する第１バネ部材とされ、該第２駆動部材が、該大径軸部を該突出位置に向けて付勢する第２バネ部材とされ、当該ドアヒンジが、更に、該小径軸部及び該大径軸部を該第１及び第２バネ部材の付勢力に抗して該引き込み位置に開放可能に保持する第１及び第２保持部材とを有するようにすることができる。 In this case, the large-diameter shaft portion has a cylindrical portion extending in the axial direction, the small-diameter shaft portion is accommodated in the cylindrical portion, and the first drive member is set in the cylindrical portion. The first spring member that biases the small-diameter shaft portion toward the protruding position, and the second drive member is a second spring member that biases the large-diameter shaft portion toward the protruding position. The door hinge further includes first and second holding members that releasably hold the small-diameter shaft portion and the large-diameter shaft portion in the retracted position against the urging force of the first and second spring members; It can be made to have.

このドアヒンジでは、ピボット軸をピボット孔内に嵌合するときには、先ず、第１保持部材を操作して第１バネ部材を解放し、小径軸部が突出位置となるようにし、次に第２保持部材を操作して第２バネ部材を解放し、大径軸部が突出位置となるようにする。 In this door hinge, when the pivot shaft is fitted into the pivot hole, first, the first holding member is operated to release the first spring member so that the small-diameter shaft portion is in the protruding position, and then the second holding is performed. The member is operated to release the second spring member so that the large-diameter shaft portion is in the protruding position.

具体的には、該第１保持部材は、ガイド部の外側側部に設定され、該大径軸部の該筒状部分の側面に設けられた開口を通して、該小径軸部に係合し該小径軸部を該筒状部内に保持する保持位置と、該保持位置から半径方向外側に変位して該小径軸部が該突出位置に変位するのを許容する解放位置との間で変位可能とすることができる。 Specifically, the first holding member is set on the outer side portion of the guide portion, and is engaged with the small diameter shaft portion through an opening provided on a side surface of the cylindrical portion of the large diameter shaft portion. Displaceable between a holding position for holding the small-diameter shaft portion in the cylindrical portion and a release position that allows the small-diameter shaft portion to be displaced to the protruding position by being displaced radially outward from the holding position. can do.

より具体的には、該第１保持部材が、該保持位置と該解放位置との間を枢動可能とされており、該第２保持部材が、該大径軸部の外側側部位置に枢動可能に設定され、先端が該大径軸部に連接されており、該第１保持部材は、該保持位置から該解放位置に変位する枢動される間は、該第１保持部材が該第２保持部材に係合して、該大径軸部が該第２バネ部材の付勢力によって該突出位置に変位するのを阻止し、該第１保持部材が更に枢動されると、該第２保持部材から外れて、該大径軸部が該第２バネ部材の付勢力によって該突出位置に変位するのを許容するようにすることができる。 More specifically, the first holding member is pivotable between the holding position and the release position, and the second holding member is located at the outer side portion position of the large-diameter shaft portion. The first holding member is set so as to be pivotable, the tip is connected to the large-diameter shaft portion, and the first holding member is pivoted while being displaced from the holding position to the release position. Engaging with the second holding member to prevent the large diameter shaft portion from being displaced to the protruding position by the biasing force of the second spring member, and when the first holding member is further pivoted, It is possible to allow the large-diameter shaft portion to be displaced to the projecting position by the urging force of the second spring member by detaching from the second holding member.

このようにすることにより最初に小径軸部が突出位置となり、次に大径軸部が突出位置となるのを確実に行うようにしている。 By doing so, it is ensured that the small-diameter shaft portion first becomes the protruding position and then the large-diameter shaft portion becomes the protruding position.

更に、該ピボット軸の側部外側に位置し、該ガイド部材に固定された取付部材を備え、該取付部材に該第１及び第２保持部材が枢動可能に取り付けられるようにすることができる。 Furthermore, the mounting member is provided outside the side portion of the pivot shaft and fixed to the guide member, and the first and second holding members can be pivotally attached to the mounting member. .

このようにすることにより、ドアヒンジの主要な全ての部材をガイド部材を中心に１つのユニットとすることができ、当該ドアヒンジの取り付けが容易になる。 By doing in this way, all the main members of a door hinge can be made into one unit centering on a guide member, and attachment of the door hinge becomes easy.

上記ドアヒンジにおいては、更に、該大径軸部及び該小径軸部を連接する引き込みリンクであって、該引き込み位置にある大径軸部に対し該小径軸部が該突出位置に変位するのを許容すると共に、該突出位置にある大径軸部を該引き込み位置に戻すのに伴って該突出位置にある該小径軸部を該引き込み位置に戻すように構成された引き込みリンクを備えるようにすることができる。 The door hinge further includes a pull-in link connecting the large-diameter shaft portion and the small-diameter shaft portion, wherein the small-diameter shaft portion is displaced to the protruding position with respect to the large-diameter shaft portion at the retracted position. And a retracting link configured to return the small-diameter shaft portion at the projecting position to the retracted position as the large-diameter shaft portion at the projecting position is returned to the retracted position. be able to.

このようにすることにより大径軸部を引き込み位置に戻すだけで、小径軸部も引き込み位置に戻すことができ、ドア枠からドアを外すのを容易とすることができる。 In this way, the small diameter shaft portion can be returned to the retracted position by simply returning the large diameter shaft portion to the retracted position, and the door can be easily removed from the door frame.

また別の形式としては、該第１保持部材が、該小径軸部の側面に取り付けられて該大径軸部の該筒状部分の側壁に係止して当該小径軸部が該突出位置に変位するのを阻止する板バネ部材と、ガイド部の外側側部に設定され、該大径軸部の該筒状部分の側面に設けられた開口を通して該板バネ部材に係合する爪部材とからなり、該爪部材が該開口を通して該大径軸部の筒状部分の外側に変位可能で、外側に変位するときに該板バネ部材を該小径軸部の側面側に押圧して該板バネ部材の該大径軸部との係止を解除し、該小径軸部が該突出位置に変位するのを許容するようにすることもできる。 As another form, the first holding member is attached to a side surface of the small-diameter shaft portion and is engaged with a side wall of the cylindrical portion of the large-diameter shaft portion so that the small-diameter shaft portion is in the protruding position. A leaf spring member that prevents displacement, and a claw member that is set on the outer side portion of the guide portion and engages with the leaf spring member through an opening provided on a side surface of the cylindrical portion of the large-diameter shaft portion; The claw member is displaceable to the outside of the cylindrical portion of the large-diameter shaft portion through the opening, and the plate spring member is pressed against the side surface of the small-diameter shaft portion when displaced outward. It is also possible to release the locking of the spring member with the large-diameter shaft portion and allow the small-diameter shaft portion to be displaced to the protruding position.

具体的には、該板バネ部材は、該小径軸部に対する固定端から自由端に向けて該小径軸部の側面に沿って突出位置方向に軸線方向に延び、該固定端から自由端の間に該小径軸部の側面から半径方向外側に離れるようにされた凸部を有するようになされ、該小径軸部が該引き込み位置にあるときに当該板バネ部材が該大径軸部の該開口内を延びて該凸部が該大径軸部の該開口の縁に係止し、該自由端が該開口から該小径軸部及び該大径軸部との間の隙間に入るような状態とされ、該爪部材が該凸部を押圧することにより、該凸部の該開口の縁との係止を解除し、該板バネが該大径軸部と該小径軸部との間に入り込むことが可能な状態とし、該小径軸部が該第１バネ部材によって該突出位置に変位されるようにすることができる。 Specifically, the leaf spring member extends in the axial direction in the protruding position direction along the side surface of the small-diameter shaft portion from the fixed end to the free end with respect to the small-diameter shaft portion, and between the fixed end and the free end. The leaf spring member is formed in the opening of the large-diameter shaft portion when the small-diameter shaft portion is in the retracted position. A state in which the convex portion is engaged with the edge of the opening of the large-diameter shaft portion and the free end enters a gap between the small-diameter shaft portion and the large-diameter shaft portion from the opening. When the claw member presses the convex portion, the engagement of the convex portion with the edge of the opening is released, and the leaf spring is interposed between the large-diameter shaft portion and the small-diameter shaft portion. The small diameter shaft portion can be displaced to the protruding position by the first spring member.

また、本発明のドアヒンジの別の形態としては、該小径軸部が該大径軸部から該突出方向に突出するようにして該大径軸部に一体的に取り付けられ、該ピボット軸が該引き込み位置から該突出位置に変位するときに、該小径軸部が最初に該ピボット孔内に嵌合され、次いで、該大径軸部が該ピボット孔内に嵌合されるようにすることができる。 As another form of the door hinge of the present invention, the small-diameter shaft portion is integrally attached to the large-diameter shaft portion so as to protrude from the large-diameter shaft portion in the projecting direction, and the pivot shaft is When displacing from the retracted position to the protruding position, the small diameter shaft portion is first fitted into the pivot hole, and then the large diameter shaft portion is fitted into the pivot hole. it can.

以下、添付図面に基づき本発明に係るドアヒンジの実施形態につき説明する。 Hereinafter, embodiments of a door hinge according to the present invention will be described with reference to the accompanying drawings.

本発明の第１の実施形態に係るドアヒンジの正面図であり、ピボット軸がピボットピンに嵌合される突出位置にある状態を示す。It is a front view of the door hinge which concerns on the 1st Embodiment of this invention, and shows the state in which the pivot axis | shaft exists in the protrusion position fitted to a pivot pin. 図１のドアヒンジの側面図である。It is a side view of the door hinge of FIG. 図１と同様の図であり、ピボット軸が引き込み位置にあるドアヒンジを示す。FIG. 2 is a view similar to FIG. 1, showing the door hinge with the pivot shaft in the retracted position. 図３のドアヒンジの側面図である。It is a side view of the door hinge of FIG. 図１のドアヒンジの縦断正面図であり、ピボット軸が引き込み位置にある状態を示す。It is a vertical front view of the door hinge of FIG. 1, and shows a state where the pivot shaft is in the retracted position. 図５と同様の図であるが、ピボット軸の小径軸部が突出位置とされた状態を示す。FIG. 6 is a view similar to FIG. 5 but showing a state in which the small-diameter shaft portion of the pivot shaft is in the protruding position. ピボット軸の小径軸部及び大径軸部が突出位置とされた状態を示す。The small-diameter shaft part and large-diameter shaft part of the pivot shaft are shown in a protruding position. 本発明の第２実施形態に係るドアヒンジの縦断正面図であり、ピボット軸が引き込み位置にある状態を示す。It is a vertical front view of the door hinge which concerns on 2nd Embodiment of this invention, and shows the state which has a pivot axis | shaft in a retracted position. 図８のドアヒンジにおいて、ピボット軸の小径軸部が突出位置とされた状態を示す。In the door hinge of FIG. 8, the small-diameter shaft part of the pivot shaft is in a protruding position. 図８のドアヒンジにおいて、ピボット軸の小径軸部及び大径軸部が突出位置とされた状態を示す。In the door hinge of FIG. 8, the small-diameter shaft part and large-diameter shaft part of the pivot shaft are in a protruding position.

図１に示すように、本発明の第１の実施形態に係るドアヒンジ１０はドアＤに取り付けられて、そのピボット軸２０が、プレート部材５０によってドア上部枠Ｆに取り付けられる筒状のピボット受け４０のピボット孔４０ａに嵌合されるようになっている。ピボット軸２０は、以下に述べるように、ピボット孔４０ａの内径(図示の例では、図５乃至図７に示すように、ピボット孔４０ａの内壁面を形成する筒状のライナー４０ｂの内径)と略同じ直径とされて該ピボット孔４０ａ内に嵌合される大径軸部２０ａと、該大径軸部と同軸状とされ該大径軸部よりも小径とされた小径軸部２０ｂとからなり、全体として、ピボット孔４０ａに嵌合した突出位置(図１、図７)と、該突出位置から下方に引き込められた引き込み位置（図３乃至図５）との間で変位可能とされている。 As shown in FIG. 1, the door hinge 10 according to the first embodiment of the present invention is attached to the door D, and the pivot shaft 20 is attached to the door upper frame F by the plate member 50. Is fitted into the pivot hole 40a. As described below, the pivot shaft 20 has an inner diameter of the pivot hole 40a (in the illustrated example, an inner diameter of a cylindrical liner 40b forming an inner wall surface of the pivot hole 40a as shown in FIGS. 5 to 7) and A large-diameter shaft portion 20a that has substantially the same diameter and is fitted in the pivot hole 40a, and a small-diameter shaft portion 20b that is coaxial with the large-diameter shaft portion and has a smaller diameter than the large-diameter shaft portion. As a whole, it can be displaced between the protruding position (FIGS. 1 and 7) fitted in the pivot hole 40a and the retracted position (FIGS. 3 to 5) retracted downward from the protruding position. ing.

ドアヒンジ１０は、図１〜図７に示すように、当該ドアヒンジ１０をドアＤに固定するためのプレート部材６０と、該プレート部材６０に固定され、ピボット軸２０を摺動可能に収納する筒状のガイド部材７０とを有する。 As shown in FIGS. 1 to 7, the door hinge 10 has a plate member 60 for fixing the door hinge 10 to the door D, and a cylindrical shape that is fixed to the plate member 60 and slidably accommodates the pivot shaft 20. Guide member 70.

ピボット軸２０の大径軸部２０ａはその軸線方向で延びる筒状部分２０ｃを有し、小径軸部２０ｂはこの筒状部分２０ｃ内に軸線方向で摺動可能に収納されており、それぞれ、以下に述べる駆動装置８０によって軸線方向で駆動されるようになっている。 The large-diameter shaft portion 20a of the pivot shaft 20 has a cylindrical portion 20c extending in the axial direction, and the small-diameter shaft portion 20b is accommodated in the cylindrical portion 20c so as to be slidable in the axial direction. It is driven in the axial direction by the driving device 80 described in (1).

この駆動装置８０は、小径軸部２０ｂ及び大径軸部２０ａを上方の突出位置に向けて付勢する第１バネ部材８０ａ及び第２バネ部材８０ｂと、小径軸部２０ｂ及び大径軸部２０ａをそれぞれ第１バネ部材８０ａ及び第２バネ部材８０ｂに抗して引き込み位置(図５)に保持する第１保持部材８０ｃ及び第２保持部材８０ｄとを有する。 The driving device 80 includes a first spring member 80a and a second spring member 80b that urge the small-diameter shaft portion 20b and the large-diameter shaft portion 20a toward the upper protruding position, and the small-diameter shaft portion 20b and the large-diameter shaft portion 20a. Are held in the retracted position (FIG. 5) against the first spring member 80a and the second spring member 80b, respectively.

具体的には、第１バネ部材８０ａは、大径軸部２０ａの筒状部分２０ｃ内に設定された圧縮コイルバネとされ、第２バネ部材８０ｂは、プレート部材６０に固定されて下方に延びる取付部材８０ｅに取り付けられたねじりバネとされ、第１保持部材８０ｃは、取付部材８０ｅに取り付けられた第１枢軸部材８０ｆに固定された爪部材とされ、第２保持部材８０ｄは第１枢軸部材８０ｆの下方位置の設けられた第２枢軸部材８０ｇに固定されて先端が大径軸部２０ａの下端に連接されたリンクとされている。第２バネ部材８０ｂは、第２枢軸部材８０ｇの周りに巻かれて、その一端が大径軸部２０ａの下端に係合され、該大径軸部２０ａを上方に付勢するようになっている。図示の例では、第２バネ部材８０ｂの他端は、第２枢軸部材８０ｇに巻かれるように延びており、先端が第１保持部材８０ｃとしての爪部材に係止され、該爪部材を反時計方向に付勢している。 Specifically, the first spring member 80a is a compression coil spring set in the cylindrical portion 20c of the large-diameter shaft portion 20a, and the second spring member 80b is fixed to the plate member 60 and extends downward. The torsion spring is attached to the member 80e, the first holding member 80c is a claw member fixed to the first pivot member 80f attached to the attachment member 80e, and the second holding member 80d is the first pivot member 80f. The link is fixed to the second pivot member 80g provided at the lower position of the shaft and the tip is connected to the lower end of the large-diameter shaft portion 20a. The second spring member 80b is wound around the second pivot member 80g, and one end of the second spring member 80b is engaged with the lower end of the large-diameter shaft portion 20a to urge the large-diameter shaft portion 20a upward. Yes. In the illustrated example, the other end of the second spring member 80b extends so as to be wound around the second pivot member 80g, and the tip is locked by a claw member serving as the first holding member 80c. It is energized clockwise.

第１保持部材８０ｃとしての爪部材は、その一端が大径軸部２０ａの筒状部分２０ｃの側壁に形成された開口２０ｄを通して筒状部分２０ｃ内に延び、小径軸部２０ｂの周面に形成された環状の係止凹部２０ｅに係合することにより、小径軸部２０ｂを引き込み位置に保持するようになっている。爪部材すなわち第１保持部材８０ｃの他端は下方に延び、第２枢軸部材８０ｇに固定された扇状係止部材８０ｉの端部に係合して、該第２枢軸部材８０ｇの時計方向での回転を止め、第２保持部材８０ｄを介して、大径軸部２０ａが上方に変位するのを阻止している。 One end of the claw member as the first holding member 80c extends into the cylindrical portion 20c through an opening 20d formed in the side wall of the cylindrical portion 20c of the large-diameter shaft portion 20a, and is formed on the peripheral surface of the small-diameter shaft portion 20b. The small-diameter shaft portion 20b is held in the retracted position by engaging with the annular locking recess 20e. The other end of the claw member, that is, the first holding member 80c extends downward, engages with the end of a fan-shaped locking member 80i fixed to the second pivot member 80g, and the second pivot member 80g in the clockwise direction. The rotation is stopped and the large-diameter shaft portion 20a is prevented from being displaced upward via the second holding member 80d.

より具体的には、取付部材８０ｅは、図２で見て逆Ｕ字状とされて、その中央部分がプレート部材６０に固定されており、該中央部分の両端から一対の脚部８０ｊが下方に延び、上記第１及び第２枢軸部材８０ｆ、８０ｇは、これら脚部８０ｊ間に架設されている。第１及び第２枢軸部材８０ｆ、８０ｇは、図１に示すように、その端面に十字形のドライバ先端係合溝８０ｋ，８０ｌが設けられており、脚部８０ｊに設けられた開口を通してドライバ先端を該ドライバ先端係合溝に係合させ、回転することができるようにされている。 More specifically, the attachment member 80e has an inverted U shape as viewed in FIG. 2, and a central portion thereof is fixed to the plate member 60, and a pair of leg portions 80j extends downward from both ends of the central portion. The first and second pivot members 80f, 80g extend between the legs 80j. As shown in FIG. 1, the first and second pivot members 80f and 80g are provided with cross-shaped driver tip engagement grooves 80k and 80l on their end faces, and through the openings provided in the leg portions 80j, the driver tip ends. Is engaged with the driver tip engagement groove so that it can be rotated.

第２保持部材すなわちリンク８０ｄの先端は、大径軸部２０ａの下端を横断するように延びる連接ピン８０ｍを遊びをもって受け入れる開口８０ｒが設けられており、大径軸部２０ａが上下動するときに、リンク８０ｅとの間に無理が掛からないようにされている。図示の例では、開口８０ｒがL字形とされており、図１０に示すようにピボット軸２０が突出位置とされた状態で、当該ピボット軸に下方への力が加わっても、リンク８０ｄがその下方への動きを阻止するようにされている。すなわち、図１０の状態でピボット軸２０、従って、連接ピン８０ｍが下がろうとすると、それによって連接ピン８０ｍは第２枢軸部材８０ｇを中心に回動しようとし、従って、連接ピン８０ｍと開口８０ｒの縁との接触点において、連接ピンの接触点は垂直下方に、開口８０ｒの縁の接触点は垂直下方に対しそれを横断する方向に変位しようとすることになり、相互の動きが阻止されることになるのである。一方、図１０の状態で、作業者が第２枢軸部材を時計方向に廻し、リンク８０ｄを反時計方向に回動すると、L字形の開口８０rにおける連接ピン８０ｍを収納している部分は該連接ピン８０ｍに相対的に動き、L字形の曲り部分から第２枢軸部材に向けて延びる縁で連接ピン８０ｍに係合するようになり、該連接ピンが該縁に対して摺動しながら下方に押し下げられるようになり、ピボット軸２０が図８の引き込み位置まで戻されることになる。 The second holding member, that is, the end of the link 80d is provided with an opening 80r that accepts a connecting pin 80m extending so as to cross the lower end of the large-diameter shaft portion 20a, and when the large-diameter shaft portion 20a moves up and down. The link 80e is not forced. In the example shown in the figure, the opening 80r is L-shaped, and even if a downward force is applied to the pivot shaft 20 with the pivot shaft 20 in the protruding position as shown in FIG. It is designed to prevent downward movement. That is, when the pivot shaft 20, and thus the connecting pin 80m, is lowered in the state of FIG. At the contact point with the edge, the contact point of the connecting pin will be displaced vertically downward, and the contact point of the edge of the opening 80r will be displaced in a direction transverse to the vertical downward direction, thereby preventing mutual movement. It will be. On the other hand, when the operator turns the second pivot member clockwise in the state shown in FIG. 10 and rotates the link 80d counterclockwise, the portion of the L-shaped opening 80r that houses the connection pin 80m is connected to the link 80d. It moves relative to the pin 80m, and engages with the connecting pin 80m at an edge extending from the L-shaped bent portion toward the second pivot member, and the connecting pin slides downward with respect to the edge. Then, the pivot shaft 20 is returned to the retracted position shown in FIG.

図１及び図２に示すように、大径軸部２０ａの両側には引き込みリンク８０ｎが設けられている。該引き込みリンクは小径軸部２０ｂの両側から突出し、大径軸部２０ａに軸線方向に延びるように形成された長孔２０ｇを通して延びる連接ピン２０ｆを受け入れる上下方向に延びる長孔８０ｐが設けられており、また、その下方位置には、連接ピン８０ｍを受け入れる長孔８０ｑが設けられている。これら引き込みリンクの長孔８０ｐ、８０ｑは、大径軸部２０ａが図１に示す突出位置に上昇したときに、連接ピン２０ｆ、８０ｍがそれぞれの上端に係合するようにされている。 As shown in FIG.1 and FIG.2, the drawing link 80n is provided in the both sides of the large diameter shaft part 20a. The pull-in link protrudes from both sides of the small-diameter shaft portion 20b, and is provided with a long hole 80p extending in the vertical direction for receiving the connecting pin 20f extending through the long hole 20g formed in the large-diameter shaft portion 20a so as to extend in the axial direction. In addition, a long hole 80q for receiving the connecting pin 80m is provided at the lower position. The long holes 80p and 80q of these retracting links are configured so that the connecting pins 20f and 80m engage with the respective upper ends when the large-diameter shaft portion 20a rises to the protruding position shown in FIG.

ドアＤに取り付けた本発明に係るドアヒンジ１０を、ドア上部枠Ｆに取り付けたピボット受け４０のピボット孔４０ａに取り付けるためには、先ず、当該ドアヒンジ１０のピボット軸２０を引き込み位置とし(図５)、該ピボット軸２０をピボット孔４０ａに軸線方向すなわち垂直方向で整合させる。次に、スクリュードライバなどを使って、第１枢軸部材８０ｆを図５で見て時計方向に回動し、該第１枢軸部材に固定されている第１保持部材８０ｃすなわち爪部材を時計方向に回動して、ピボット軸２０の小径軸部２０ｂの周面に形成された係止凹部２０ｅから外す。これにより、小径軸部２０ｂは、第１バネ部材８０ａによって図６に示す突出位置とされ、ピボット孔４０ａ内に挿入される。次に、第１枢軸部材８０ｆを更に時計方向に回動すると、第１保持部材８０ｃの下端が第２枢軸部材８０ｇに固定されている扇状係止部材８０ｉから外れ、それにより、第２枢軸部材８０ｇ及びそれに固定されている第２保持部材８０ｄすなわちリンクに対する回動方向での係止力がなくなり、これにより大径軸部２０ａが第２バネ部材８０ｂによって図７に示す突出位置にされ、ピボット孔４０ａ内に嵌合する。 In order to attach the door hinge 10 according to the present invention attached to the door D to the pivot hole 40a of the pivot receiver 40 attached to the door upper frame F, first, the pivot shaft 20 of the door hinge 10 is set to the retracted position (FIG. 5). The pivot shaft 20 is aligned with the pivot hole 40a in the axial direction, that is, in the vertical direction. Next, using a screw driver or the like, the first pivot member 80f is rotated clockwise as viewed in FIG. 5, and the first holding member 80c, that is, the claw member fixed to the first pivot member is rotated clockwise. It rotates and removes from the latching recessed part 20e formed in the surrounding surface of the small diameter shaft part 20b of the pivot shaft 20. Thereby, the small diameter shaft portion 20b is brought into the protruding position shown in FIG. 6 by the first spring member 80a, and is inserted into the pivot hole 40a. Next, when the first pivot member 80f is further rotated clockwise, the lower end of the first holding member 80c is disengaged from the fan-shaped locking member 80i fixed to the second pivot member 80g, whereby the second pivot member 80g and the second holding member 80d fixed thereto, that is, the locking force in the rotational direction with respect to the link is lost, whereby the large-diameter shaft portion 20a is brought into the protruding position shown in FIG. It fits in the hole 40a.

ピボット軸２０を図７に示す位置から図５に示す引き込み位置に戻す場合には、スクリュードライバなどにより第２枢軸部材８０ｇを反時計方向に回動する。これにより、第２保持部材８０ｄすなわちリンクは反時計方向に回動されピン８０ｍは長孔８０ｑ内を下方に変位する。ピン８０ｍが長孔８０ｑの下端に達すると、該ピンは引き込みリンク８０ｎをさらに引き下げて最終的には図５に示す位置まで戻す。この時点で、第２バネ部材８０ｂにより反時計方向に付勢されている第１保持部材８０ｃすなわち爪部材は、その下方端部が扇状係止部材８０ｉの円弧状部分との係合から外れて図５に示す状態に戻されており、第２枢軸部材８０ｇを反時計方向に駆動したスクリュードライバなどを該第２枢軸部材８０ｇから外せば、第２保持部材８０ｄであるリンクは第２バネ部材８０ｂにより図５に示す位置に戻され、ピボット軸２０全体を引き込み位置に保持する状態となる。 When the pivot shaft 20 is returned from the position shown in FIG. 7 to the retracted position shown in FIG. 5, the second pivot member 80g is rotated counterclockwise by a screw driver or the like. Accordingly, the second holding member 80d, that is, the link is rotated counterclockwise, and the pin 80m is displaced downward in the long hole 80q. When the pin 80m reaches the lower end of the long hole 80q, the pin further lowers the retracting link 80n to finally return to the position shown in FIG. At this time, the lower end of the first holding member 80c, that is, the claw member biased counterclockwise by the second spring member 80b is disengaged from the engagement with the arcuate portion of the fan-shaped locking member 80i. When the screw driver or the like that has returned to the state shown in FIG. 5 and has driven the second pivot member 80g in the counterclockwise direction is removed from the second pivot member 80g, the link that is the second holding member 80d becomes the second spring member. 80b returns to the position shown in FIG. 5, and the entire pivot shaft 20 is held in the retracted position.

図８乃至図１０に示す第２の実施形態に係るドアヒンジ１０は、上述の第１の実施形態に係るドアヒンジ１０と実質的には同じであり、同じ要素には同じ参照番号を付して示すが、大径軸部２０ａと小径軸部２０ｂとの係合関係が、以下に述べる如く異なる。 The door hinge 10 according to the second embodiment shown in FIGS. 8 to 10 is substantially the same as the door hinge 10 according to the first embodiment described above, and the same elements are denoted by the same reference numerals. However, the engagement relationship between the large-diameter shaft portion 20a and the small-diameter shaft portion 20b is different as described below.

すなわち、小径軸部２０ｂにはネジ９０によって板バネ９２が取り付けられている。この板バネ９２は、小径軸部２０ｂの周面に沿って、突出位置側にある自由端に向けて上方に延び、全体として山形とされた凸部９２ａを有しており、図５に対応する図８に示すピボット軸２０が全体として引き込み位置にあるときには、該板バネ９２は大径軸部２０ａの筒状部２０ｃに形成された軸線方向に延びる細長い開口２０ｄ内に入り、該凸部９２ａがその上端縁に係合し、自由端が小径軸部２０ｂと大径軸部２０ａとの間の隙間に入るようにされている。これにより小径軸部２０ｂは、大径軸部２０ａに対して相対的に上方に変位することができず、当該ピボット２０は、図８に示す引き込み位置に保持される。 That is, the leaf spring 92 is attached to the small diameter shaft portion 20b by the screw 90. The leaf spring 92 has a convex portion 92a that extends upward along the peripheral surface of the small-diameter shaft portion 20b toward the free end on the protruding position side, and has a mountain shape as a whole, corresponding to FIG. When the pivot shaft 20 shown in FIG. 8 is in the retracted position as a whole, the leaf spring 92 enters the elongated opening 20d extending in the axial direction formed in the cylindrical portion 20c of the large-diameter shaft portion 20a, and the convex portion 92a engages with the upper end edge thereof, and the free end enters the gap between the small diameter shaft portion 20b and the large diameter shaft portion 20a. As a result, the small-diameter shaft portion 20b cannot be displaced upward relative to the large-diameter shaft portion 20a, and the pivot 20 is held in the retracted position shown in FIG.

第１枢軸部材８０ｆをスクリュードライバ８０ｆなどで時計方向に回動し始めると、板バネ９２の凸部９２ａに係合している第１保持部材８０ｃとしての爪部材の第１爪状端部１８０ｃが凸部９２ａを潰すように動き、このため、該凸部９２ａの大径軸部２０ａの開口２０ｄ上端縁に対する係合が外され、第１バネ部材８０ａの付勢力により、小径軸部２０ｂが大径軸部２０ａ内を上方に変位し図９に示す突出位置となる。第１枢軸部材８０ｆを更に時計方向に回動すると、第１保持部材８０ｃとしての爪部材の第２爪状端部１８０ｄが第２枢軸部材８０ｇに固定されている扇状係止部材８０ｉの端部から外れ、第２バネ部材８０ｂの付勢力により、大径軸部２０ａが小径軸部２０ｂに対して相対的に上方に変位して突出位置となり図１０に示す如き状態となる。 When the first pivot member 80f starts to rotate clockwise with a screw driver 80f or the like, the first claw-shaped end portion 180c of the claw member as the first holding member 80c engaged with the convex portion 92a of the leaf spring 92 is obtained. Therefore, the engagement of the projection 92a with the upper end edge of the opening 20d of the large-diameter shaft portion 20a is released, and the biasing force of the first spring member 80a causes the small-diameter shaft portion 20b to move. The inside of the large-diameter shaft portion 20a is displaced upward to become the protruding position shown in FIG. When the first pivot member 80f is further rotated in the clockwise direction, the end portion of the fan-shaped locking member 80i in which the second claw-shaped end portion 180d of the claw member as the first holding member 80c is fixed to the second pivot member 80g. The large-diameter shaft portion 20a is displaced upward relative to the small-diameter shaft portion 20b by the urging force of the second spring member 80b and becomes a protruding position, as shown in FIG.

ピボット軸２０を、図１０に示す突出位置から図８に示す引き込み位置に戻すためには、第２枢軸部材８０ｇをスクリュードライバなどで反時計方向に回転する。これにより大径軸部２０ａは下方に変位し、それに伴い、板バネ９２の凸部９２ａを介して小径軸部２０ｂが下方に変位し図８に示す位置まで戻される。図８乃至図１０において参照番号９４はガイド部材７０に取り付けられたガイドピンであり、９６、９８は大径軸部２０ａ及び小径軸部２０ｂに形成され該ガイドピン９４と摺動係合されるようにした長孔及び溝を示す。 In order to return the pivot shaft 20 from the protruding position shown in FIG. 10 to the retracted position shown in FIG. 8, the second pivot member 80g is rotated counterclockwise by a screw driver or the like. As a result, the large-diameter shaft portion 20a is displaced downward, and accordingly, the small-diameter shaft portion 20b is displaced downward via the convex portion 92a of the leaf spring 92 and returned to the position shown in FIG. 8 to 10, reference numeral 94 is a guide pin attached to the guide member 70, and 96 and 98 are formed on the large diameter shaft portion 20 a and the small diameter shaft portion 20 b and are slidably engaged with the guide pin 94. The long hole and groove which were made are shown.

以上、本発明に係るドアヒンジをドアに取り付けるようにした実施形態につき説明したが、このドアヒンジをドア枠に取り付けて、そのピボット軸をドアの方に設けたピボット軸に嵌合するようにすることができることは自明であろう。また、本発明に係るドアヒンジは種々の変形が可能であり、例えば、小径軸部が大径軸部から突出方向に突出するようにして大径軸部に一体的に取り付けられ、大径軸部に対して相対的変位が生じないようなものとすることができる。この場合には、ピボットを上方に変位させると小径軸部がピボット孔内に確実に入り、その後で大径軸部がピボット孔内に入ることになる。従って、大径軸部がピボット孔内に入らないことがあっても、ドアが倒れてしまうことはない。 As described above, the embodiment in which the door hinge according to the present invention is attached to the door has been described. However, the door hinge is attached to the door frame, and the pivot shaft is fitted to the pivot shaft provided toward the door. It will be obvious that you can. The door hinge according to the present invention can be variously modified. For example, the door hinge is integrally attached to the large diameter shaft portion so that the small diameter shaft portion protrudes from the large diameter shaft portion in the protruding direction. The relative displacement may not occur. In this case, when the pivot is displaced upward, the small diameter shaft portion surely enters the pivot hole, and then the large diameter shaft portion enters the pivot hole. Therefore, even if the large-diameter shaft portion does not enter the pivot hole, the door does not fall down.

ドアＤ；ドア上部枠Ｆ；ドアヒンジ１０；ドアＤ；ピボット軸２０；大径軸部２０ａ；小径軸部２０ｂ；筒状部分２０ｃ；係止凹部２０ｅ；連接ピン２０ｆ；長孔２０ｇ；ピボット受け４０；ピボット孔４０ａ；ライナー４０ｂ；プレート部材５０；プレート部材６０；ガイド部材７０；駆動装置８０；第１バネ部材８０ａ；第２バネ部材８０ｂ；第１保持部材８０ｃ；第２保持部材８０ｄ；取付部材８０ｅ；第１枢軸部材８０ｆ；第２枢軸部材８０ｇ；扇状係止部材８０ｉ；脚部８０ｊ；ドライバ先端係合溝８０ｋ，８０ｌ；連接ピン８０ｍ；引き込みリンク８０ｎ；長孔８０ｐ、８０ｑ；開口８０ｒ；凸部９２ａ Door D; Door upper frame F; Door hinge 10; Door D; Pivot shaft 20; Large diameter shaft portion 20a; Small diameter shaft portion 20b; Cylindrical portion 20c; Pivot hole 40a; liner 40b; plate member 50; plate member 60; guide member 70; drive device 80; first spring member 80a; second spring member 80b; first holding member 80c; 80e; first pivot member 80f; second pivot member 80g; fan-shaped locking member 80i; leg 80j; driver tip engagement groove 80k, 80l; connecting pin 80m; retract link 80n; long holes 80p, 80q; Convex part 92a

Claims

A door hinge having a pivot shaft attached to one of the door and the door frame and fitted in a pivot hole provided in the other of the door and the door frame, wherein the pivot shaft is fitted into the pivot hole. When,
A small-diameter shaft portion coaxial with the large-diameter shaft portion and having a smaller diameter than the large-diameter shaft portion;
And is displaceable between a retracted position and a projecting position protruding from the retracted position and fitted into the pivot hole, and when the small diameter shaft portion is fitted into the pivot hole, A door hinge that can be fitted before the large-diameter shaft portion.

A guide member fixed to the one of the door and the door frame and storing the pivot shaft so as to be displaceable in the axial direction;
2. The door hinge according to claim 1, further comprising a drive device that drives the pivot shaft from the retracted position in the guide member to the projecting position that projects outward from the guide member.

The large-diameter shaft portion and the small-diameter shaft portion are relatively displaceable in the axial direction and housed in the guide member, and the driving device drives the small-diameter shaft portion to the protruding position. The door hinge according to claim 2, further comprising a member and a second drive member that drives the large-diameter shaft portion to the protruding position.

The large-diameter shaft portion has a cylindrical portion extending in the axial direction, the small-diameter shaft portion is accommodated in the cylindrical portion, and the first drive member is set in the cylindrical portion and the small-diameter A first spring member that biases the shaft portion toward the protruding position, and the second drive member is a second spring member that biases the large-diameter shaft portion toward the protruding position, and the drive The apparatus further includes first and second holding members that releasably hold the small-diameter shaft portion and the large-diameter shaft portion in the retracted position against the biasing force of the first and second spring members. The door hinge according to claim 3.

The first holding member is set on the outer side portion of the guide member , and engages with the small-diameter shaft portion through an opening provided on a side surface of the cylindrical portion of the large-diameter shaft portion so that the small-diameter shaft portion is It is possible to displace between a holding position that is held in the cylindrical portion and a release position that is displaced radially outward from the holding position to allow the small-diameter shaft portion to be displaced to the protruding position. The door hinge according to claim 4.

The first holding member is pivotable between the holding position and the release position, and the second holding member is set to be pivotable to an outer side portion position of the large-diameter shaft portion. The first holding member is engaged with the second holding member while the tip is connected to the large-diameter shaft portion, and the first holding member is pivoted from the holding position to the release position. Then, the large diameter shaft portion is prevented from being displaced to the protruding position by the biasing force of the second spring member, and when the first holding member is further pivoted, it is detached from the second holding member. 6. The door hinge according to claim 5, wherein the large-diameter shaft portion is allowed to be displaced to the protruding position by an urging force of the second spring member.

An attachment member is provided on the outer side of the pivot shaft and fixed to the guide member, and the first and second holding members are pivotally attached to the attachment member. Item 7. The door hinge according to Item 6.

A retracting link connecting the large diameter shaft portion and the small diameter shaft portion, wherein the small diameter shaft portion is allowed to be displaced to the protruding position with respect to the large diameter shaft portion at the retracted position, and the protruding position 8. A retraction link configured to return the small-diameter shaft portion at the protruding position to the retracted position as the large-diameter shaft portion at the retracted position returns to the retracted position. Door hinges.

The first holding member is attached to a side surface of the small-diameter shaft portion, and is a plate that is engaged with a side wall of the cylindrical portion of the large-diameter shaft portion and prevents the small-diameter shaft portion from being displaced to the protruding position. The claw member includes a spring member and a claw member that is set on the outer side portion of the guide member and engages with the leaf spring member through an opening provided on a side surface of the cylindrical portion of the large-diameter shaft portion. Can be displaced to the outside of the cylindrical portion of the large-diameter shaft portion through the opening, and when the plate is displaced outward, the leaf spring member is pressed toward the side surface of the small-diameter shaft portion to The door hinge according to claim 4, wherein the door hinge is released so as to allow the small-diameter shaft portion to be displaced to the protruding position.

The leaf spring member extends in the axial direction in the protruding position direction along the side surface of the small-diameter shaft portion from the fixed end to the free end with respect to the small-diameter shaft portion, and the small-diameter shaft portion between the fixed end and the free end The leaf spring member extends in the opening of the large-diameter shaft portion when the small-diameter shaft portion is in the retracted position. The protrusion is locked to the edge of the opening of the large-diameter shaft portion, and the free end enters a gap between the small-diameter shaft portion and the large-diameter shaft portion from the opening, and the claw When the member presses the convex portion, the convex portion is unlocked from the edge of the opening, and the leaf spring can enter between the large-diameter shaft portion and the small-diameter shaft portion. The door hinge according to claim 9, wherein the small-diameter shaft portion is displaced to the projecting portion by the first spring member.

The small-diameter shaft portion is integrally attached to the large-diameter shaft portion so as to project from the large-diameter shaft portion in the projecting direction, and the pivot shaft is displaced from the retracted position to the projecting position. 2. The door hinge according to claim 1, wherein the small-diameter shaft portion is first fitted in the pivot hole, and then the large-diameter shaft portion is fitted in the pivot hole.