JP4718038B2

JP4718038B2 - hinge

Info

Publication number: JP4718038B2
Application number: JP2001135484A
Authority: JP
Inventors: 競高木
Original assignee: 河村電器産業株式会社
Priority date: 2001-05-02
Filing date: 2001-05-02
Publication date: 2011-07-06
Anticipated expiration: 2021-05-02
Also published as: JP2002327569A

Description

【０００１】
【発明の属する技術分野】
本発明は、扉等を開閉自在に軸着する蝶番に関する。
【０００２】
【従来の技術】
例えば、分電盤や配電盤等の電気機器収納箱の蓋板を開閉自在に箱本体に軸着している蝶番は図７に示すような形状となっていた。図７において、３１は本体側蝶番筒、３２は蓋板側蝶番筒、３３は芯棒であり、双方の筒の中心軸を一致させて芯棒３３を挿通した後、抜け止め具としてＥリング３４を芯棒の先端部に設けた細頸部３３ａに装着して、芯棒の脱落を防止していた。
【０００３】
【発明が解決しようとする課題】
分電盤や配電盤は機器の収納や保守点検の際に蓋板を取り外して行うことが多く、そのような場合、上記構成ではＥリング３４を外して芯棒３３を抜き取る操作をしなければならない。しかし、上記構成の場合Ｅリング３４の取り外しは専用工具を必要とするため面倒であったし、取り外したＥリング３４は小さいので紛失し易かった。また、抜き取った芯棒３３も保管場所が用意されている訳ではないので、転がり落ちて不明になったりすることがあり、取り外した部材の保管に気を遣い厄介な作業となっていた。
【０００４】
また、抜け止め具の着脱操作を、専用工具を必要とせず容易に行うことができるように抜け止め具の形状を工夫した蝶番が実開平５−４７２７７号公報に開示されている。これは、図８に示すようにＥリングに代わる抜け止め具３５として芯棒３３に係止するリング部に取手部３５ａを形成し、専用工具を必要とせずに取手部３５ａを挟持して着脱操作をすることを可能としている。しかし、装着後任意の位置に回転してしまい、装着時の位置に戻さなければ外すことができないし、外した抜け止め具３５は相変わらず小さいため、やはり紛失しやすかった。
そこで、本発明は上記問題点に鑑み、蝶番の分解操作を容易に行うことができると共に、分解後の抜け止め具等の紛失の虞がない蝶番を提供することを課題とする。
【０００５】
【課題を解決するための手段】
上記課題を解決する為に、請求項１の発明は、本体側蝶番筒と蓋板側蝶番筒の双方に共通の芯棒を挿通すると共に、該芯棒に設けた細頸部に抜け止め具を装着することで芯棒の抜けを防止する蝶番において、前記抜け止め具は、前記本体側蝶番筒或いは蓋板側蝶番筒の少なくとも一方に固定され、前記芯棒は拡径された頭部を後端に有して、先端から蝶番筒へ挿通操作することで芯棒の細頸部に抜け止め具が係合して固定され、蝶番筒軸方向左右端部に、本体側或いは蓋板側の何れか一方の蝶番筒を配置してその内側に他方の蝶番筒を夫々配置して更に中央に空間を設け、２本の前記芯棒を該中央の空間から夫々左右の蝶番筒に挿通して成り、加えて左右端部に配置した一方の蝶番筒同士を連結する連結板から前記中央の空間へ突出させた突起体を有し、前記突起体は抜き取り操作した前記芯棒の先端が外側の蝶番筒から抜けた位置で芯棒頭部が当接するよう配置され、それ以上の抜けを阻止して芯棒の抜け落ちを防止することを特徴とする。
【０００６】
請求項２の発明は、請求項１の発明において、抜け止め具を芯棒挿入側の蝶番筒に固定し、芯棒は、本体側蝶番筒と蓋板側蝶番筒の双方に挿通完了した際に抜け止め具が係合する第１細頸部と、双方の蝶番筒を分離可能に芯棒挿入側蝶番筒のみに挿入した状態で抜け止め具が係合する第２細頸部とを有することを特徴とする。
【０００７】
請求項３の発明は、請求項１の発明において、抜け止め具を芯棒挿入側の蝶番筒と挿通した芯棒の先端側蝶番筒との双方に固定すると共に、芯棒は、本体側蝶番筒と蓋板側蝶番筒の双方に挿通完了した際に抜け止め具が係合する部位で且つ芯棒挿入側蝶番筒のみに挿通して双方の蝶番筒を分離可能とした状態で抜け止め具が係合する部位の１個所に細頸部を有することを特徴とする。
【０００９】
請求項４の発明は、請求項１乃至３の何れかに記載の発明において、抜け止め具が芯棒を挿通可能なリング体であって、該リング体の挿通孔内にリング体中心に向けて弾性突起を設ける一方、蝶番筒に蝶番筒の筒軸に直交する切り欠きを形成し、前記リング体と蝶番筒の双方の中心軸が一致するようにリング体を切り欠きに挿入して挟持保持させると共に、前記弾性突起が芯棒細頸部に係合して芯棒を保持することを特徴とする。
【００１０】
請求項５の発明は、請求１乃至４の何れかに記載の発明において、芯棒に形成した細頸部が、断面Ｖ字状の環状溝から成ることを特徴とする。
【００１１】
【発明の実施の形態】
以下、本発明を具体化した実施の形態を、図面に基づいて詳細に説明する。図１は本発明の蝶番の第１の実施形態を示し、（ａ）は側面図、（ｂ）はＡ−Ａ線断面を示している。図において、１は本体側蝶番筒、２は蓋板側蝶番筒、３は芯棒、４は抜け止め具であり、図示するように２本の芯棒３，３が背中合わせに配置され、左右対称な形状となっている。尚、１ａは収納箱等の本体、２ａは蓋板を示している。
【００１２】
本体側蝶番筒１は蝶番筒軸方向左右両端部に設けられ、その内側に隣接するように蓋板側蝶番筒２が左右に配置形成されている。双方の本体側蝶番筒１，１は連結板５にて連結され、連結板５の中央、即ち蝶番の中央には蝶番筒の中心軸Ｍに向けて突起体６が形成されている。また、蓋板側蝶番筒２，２は双方とも途中に蝶番筒の中心軸Ｍに直交する方向に切り欠き７がスリット状に形成され、抜け止め具４が挿入され挟持固定されている。
【００１３】
抜け止め具４は図２に示す形状を成し、（ａ）は側面図、（ｂ）は正面図、（ｃ）はＢ−Ｂ断面を示している。図示するように、抜け止め具４は中央に芯棒３を挿通する挿通孔９を有する略リング形状を成し、挿通孔壁面にはリング中心に向けて舌片１０が全周に渡り６ヶ所に形成されている。この舌片１０を含み抜け止め具４はゴムにより形成され、全体が弾性を有すると共に、挿通孔９の径は蝶番筒の内径より僅かに大きく形成されている。
一方、切り欠き７の幅は筒中心に向けて狭くなるよう壁面にテーパを設けて形成されていると共に、切り欠き７の幅は抜け止め具４の厚みより僅かに狭く形成されている。こうすることで、抜け止め具４を切り欠き７に挿入した際に、切り欠き壁面の内側端部のテーパ状突出部が、挿入された抜け止め具４の挿通孔９に係止し、抜け止め具４が切り欠き７に挟持保持される。
【００１４】
このように、抜け止め具は蝶番筒の切り欠きに係止保持されるので、弾性突起である舌片により芯棒を蝶番筒に挿入操作するだけで抜け止め具は芯棒に係合させることができる。従って、別途抜け止め具の装着操作を必要としないし専用工具も必要がない。また、抜け止め具は蝶番筒に挟持固定されているので、芯棒を抜いた状態でも紛失する虞がないし、簡易な構造で抜け止め具を保持できる。
【００１５】
芯棒３は、一様な径の円柱状棒体の基部に拡径した頭部３ａを設けてなり、先端は端部が丸められて挿入操作し易く形成され、棒体の途中２ヶ所には円周方向にＶ字状の環状溝を設けて縮径した細頸部１２ａ，１２ｂが形成されている。そのうち頭部側に設けられた第１細頸部１２ａは、頭部３ａから第１細頸部１２ａまでの距離と、蓋板側蝶番筒２の芯棒挿入側端部から切り欠き７までの距離が略同一となるよう形成され、芯棒挿入完了時に第１細頸部１２ａと切り欠き７が合致、即ち抜け止め具４が第１細頸部１２ａに係合するように形成されている。
一方、先端側に設けられた第２細頸部１２ｂは、図３に示すように芯棒先端部が本体側蝶番筒１から完全に外れ、且つ蓋板側蝶番筒２にまだ挿入された状態で抜け止め具４が係合するように設けられている。
【００１６】
また、連結板５に形成された突起体６は、この状態まで芯棒３が引き出された位置で頭部３ａが当接する位置に設けられ、これ以上の芯棒３の引き出しを阻止している。尚、芯棒３の完全な抜き取り操作は、頭部３ａが突起体６に当接する状態まで芯棒３の移動をした後、本体側蝶番筒１を分離すれば突起体６が芯棒係止位置から無くなるので、容易に行うことができる。また、最初の芯棒挿入操作は、本体側蝶番筒１と蓋板側蝶番筒２を分離した状態で蓋板側蝶番２に芯棒３を挿入し、第２細頸部に抜け止め具４を係合させた状態で蓋板側蝶番筒１を芯棒３を挿入可能に組み付ければ良い。
【００１７】
このように、細頸部を２ヶ所に設けたので、１個の抜け止め具を設けるだけで、芯棒を挿通完了した状態で芯棒は保持されるし、芯棒を本体側蝶番筒と蓋板側蝶番筒を分離可能な状態になるよう移動しても、蓋板側蝶番筒に挿入された状態で保持されるので、蝶番を分離して蓋板を外す際に芯棒を抜き取り別途保管しておく必要がない。
また、突起体が芯棒の抜けを確実に阻止するので、蝶番分離操作の際に芯棒が抜け落ちることがなく、安心して作業できる。更に、細頸部をＶ字状の環状溝とすることで、転造加工で容易に加工できるし、壁面が傾斜しているので抜け止め具が係合状態にあっても、芯棒の抜き取り操作を容易にできる。
【００１８】
次に、本発明の蝶番の第２の実施形態を図４、図５を基に説明する。図４（ａ）は正面図、図４（ｂ）は側面図、図５は芯棒を移動して蝶番を分離した状態の正面図である。図において１４は本体側蝶番筒、１５は蓋板側蝶番筒、１６は芯棒であり、抜け止め具４は挿入側蝶番筒である一方の本体側蝶番筒１４に装着されている。図示するように蝶番は前後両端に本体側蝶番筒１４，１４を配置して中央に蓋板側蝶番筒１５を配置し、１本の芯棒１６を挿通した構成となっている。
【００１９】
また、芯棒１６に形成された第１及び第２の細頸部１７ａ，１７ｂは、は上記第１の実施形態と同様の位置、即ち頭部側に設けられた第１細頸部１７ａは、芯棒頭部から第１細頸部１７ａまでの距離と、蓋板側蝶番筒１５の芯棒挿入側端部から切り欠き７までの距離が略同一となるよう形成され、芯棒挿入完了時に第１細頸部１７ａと切り欠き７が合致、即ち抜け止め具４が第１細頸部１７ａに係合するように形成されている。そして、先端側に設けられた第２細頸部１７ｂは、芯棒先端部が本体側蝶番筒１４から完全に外れ、且つ蓋板側蝶番筒１５に挿入された状態で抜け止め具４が係合するように設けられている。
【００２０】
このように、芯棒を１本で構成しても、芯棒挿入完了時に抜け止め具は芯棒に係合して抜けを防止できるし、抜き取り操作の途中で本体側蝶番筒が取り外し可能となった状態で抜け止め具が芯棒に係合するので、蝶番を分離した状態でも、芯棒を取り外して別途保管しておく手間を必要としない。
尚、対象位置に設けた係止溝７ａは蝶番を反転した際に抜け止め具４を装着するためのものであり、このように形成することで蓋板開閉方向の左右反転操作が容易となる。また、この係止溝７ａにも抜け止め具を設けて、２個の抜け止め具で芯棒１６を保持操作しても良い。
【００２１】
図６は本発明の第３の実施形態を示している。この実施形態は、本体側と蓋板側の蝶番筒２０，２１の配置が図１の構成と同様であり、２本の芯棒２２，２２を用いた構成となっている。但し、抜け止め具４と芯棒２２の関係が異なり、この形態では本体側蝶番筒２０と蓋板側蝶番筒２１の双方に切り欠きを７形成して双方に抜け止め具４（４ａ、４ｂ）を装着すると共に、芯棒２２は蝶番筒に挿通完了した状態で、先端側抜け止め具４ｂに合致する位置の１ヶ所のみに細頸部２２ａを設けてある。そして、挿入側抜け止め具４ａは、蝶番筒を分離可能とするために芯棒２２を移動して、挿入側蝶番筒のみに挿入された状態で細頸部２２ａに係合する位置に設けたれている。
このように、抜け止め具を２個設けて細頸部を１ヶ所としても、芯棒を挿通完了した状態と蝶番を分離可能とした状態とで芯棒は保持固定されるので、抜け落ちることがなく、蝶番を分離する際に完全に抜き取る必要がない。
【００２２】
尚、上記実施の形態においては、何れも蓋板側蝶番筒と本体側蝶番筒を逆に配置しても良い。また、抜け止め具は、全体をゴム或いは軟質樹脂等の弾性体で形成するのが好ましいが、少なくとも舌片が弾性を有していれば良く、リング部は硬質樹脂や金属で形成しても良い。
【００２３】
【発明の効果】
以上詳述したように、請求項１の発明によれば、芯棒の挿通操作により抜け止め具が芯棒に装着されるので、挿通後抜け止め具の装着操作を必要としないし装着のための専用工具も必要ない。また、抜け止め具は蝶番筒に固定されているので、芯棒を抜いた状態でも紛失する虞がない。
更に、芯棒を抜き取る際に、本体側蝶番筒と蓋板側蝶番筒を分離可能な状態となった位置で突起体が芯棒の抜けを阻止するので、芯棒抜き取り操作の際に抜け落ちることがなく、安心して作業できる。
また、請求項２，３の発明によれば、請求項１の発明の効果に加えて、本体側蝶番筒と蓋板側蝶番筒を分離可能な状態としても、芯棒は抜け止め具に保持されるので、蓋板を取り外す際に芯棒を抜き取り別途保管しておく必要がない。
【００２５】
請求項４の発明によれば、請求項１乃至３の何れかの効果に加えて、簡易な構造で抜け止め具を蝶番筒に保持できる。
また、請求項５の発明によれば、請求項１乃至４の何れかの効果に加えて転造加工により細頸部を容易に加工できるし、細頸部の壁面が傾斜しているので抜け止め具が係合状態にあっても、芯棒の抜き取り操作が容易である。
【図面の簡単な説明】
【図１】本発明に係る蝶番の第１の実施形態を示し、（ａ）は側面図、（ｂ）はＡ−Ａ線断面図である。
【図２】図１の抜け止め具を示し、（ａ）は側面図、（ｂ）は正面図、（ｃ）はＢ−Ｂ線断面図である。
【図３】図１の分解説明図を示し、芯棒の第２細頸部に抜け止め具が係止し、蝶番を分離可能とした状態を示す拡大正面図である。
【図４】本発明に係る蝶番の第２の実施形態を示し、（ａ）は正面図、（ｂ）は側面図である。
【図５】図４の分解説明図を示し、芯棒を移動して蝶番を分離可能とした状態を示す正面図である。
【図６】本発明の第３の実施形態を示す蝶番の正面図である。
【図７】従来の蝶番の斜視図である。
【図８】従来の蝶番の斜視図である。
【符号の説明】
１・・本体側蝶番筒、２・・蓋板側蝶番筒、３・・芯棒、４，４ａ，４ｂ・・抜け止め具、５・・連結板、６・・突起体、７・・切り欠き、９・・挿通孔、１０・・舌片、１２，１２ａ，１２ｂ・・細頸部、１４・・本体側蝶番、１５・・蓋板側蝶番、１６・・芯棒、１７，１７ａ，１７ｂ・・細頸部、２０・・本体側蝶番、２１・・蓋板側蝶番、２２・・芯棒、２２ａ・・細頸部。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hinge for pivotally attaching a door or the like so as to be freely opened and closed.
[0002]
[Prior art]
For example, a hinge that pivotally attaches a lid plate of an electrical equipment storage box such as a distribution board or a distribution board to the box body so as to be freely opened and closed has a shape as shown in FIG. In FIG. 7, 31 is a main body side hinge tube, 32 is a cover plate side hinge tube, and 33 is a core rod. After inserting the core rod 33 with the center axes of both tubes aligned, an E-ring is used as a retainer. 34 was attached to a narrow neck portion 33a provided at the tip of the core rod to prevent the core rod from falling off.
[0003]
[Problems to be solved by the invention]
Distribution boards and switchboards are often removed by removing cover plates when storing and maintaining equipment. In such a case, in the above configuration, the E-ring 34 must be removed and the core rod 33 must be removed. . However, in the case of the above configuration, the removal of the E-ring 34 is troublesome because it requires a dedicated tool, and the removed E-ring 34 is small and easily lost. Also, since the core rod 33 that has been removed is not necessarily provided with a storage place, it may roll off and become unclear, and care has been taken in storing the removed member, which is a troublesome task.
[0004]
Japanese Utility Model Laid-Open No. 5-47277 discloses a hinge in which the shape of the retainer is devised so that the retainer can be easily attached and detached without requiring a dedicated tool. As shown in FIG. 8, a handle 35a is formed on the ring portion that is locked to the core rod 33 as a retaining member 35 in place of the E-ring, and the handle 35a is sandwiched and attached without requiring a special tool. It is possible to operate. However, it is rotated to an arbitrary position after mounting, and cannot be removed unless it is returned to the mounting position, and the removed stopper 35 is still small, so it was easily lost.
Therefore, in view of the above problems, an object of the present invention is to provide a hinge that can be easily disassembled and can be prevented from being lost after being disassembled.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the invention of claim 1 is characterized in that a common core rod is inserted into both the main body side hinge tube and the cover plate side hinge tube, and the retainer is attached to the narrow neck portion provided on the core rod. In the hinge that prevents the core rod from falling off, the retainer is fixed to at least one of the main body side hinge tube or the cover plate side hinge tube, and the core rod has an enlarged head. At the rear end, the stopper is engaged and fixed to the narrow neck part of the core rod by inserting it into the hinge cylinder from the tip , and the main body side or lid plate side at the left and right ends in the axial direction of the hinge cylinder One of the hinge cylinders is arranged, the other hinge cylinder is arranged inside thereof, a space is further provided in the center, and the two core rods are inserted into the left and right hinge cylinders from the central space, respectively. In addition, a protrusion that protrudes from the connecting plate that connects the hinge tubes arranged at the left and right ends to the central space. And the protrusion is arranged such that the core rod head abuts at a position where the tip of the extracted core rod is removed from the outer hinge tube and prevents the core rod from falling out further. It is characterized by preventing .
[0006]
The invention of claim 2 is the invention of claim 1, wherein the retainer is fixed to the hinge tube on the core rod insertion side, and the core rod is completely inserted into both the main body side hinge tube and the cover plate side hinge tube. And a second narrow neck portion with which the retainer is engaged in a state in which both hinge tubes are inserted only into the core rod insertion side hinge tube so as to be separable. It is characterized by that.
[0007]
According to a third aspect of the present invention, in the first aspect of the invention, the retainer is fixed to both the hinge tube on the core rod insertion side and the distal end side hinge tube of the inserted core rod, and the core rod is a hinge on the main body side. Retaining tool in a state where the retaining tool engages when insertion into both the cylinder and the cover plate side hinge cylinder is completed, and only the hinge cylinder on the core rod insertion side is inserted so that both hinge cylinders can be separated. It has a narrow neck part in one part of the site | part which engages.
[0009]
According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the retaining member is a ring body through which the core rod can be inserted, and is directed toward the center of the ring body in the insertion hole of the ring body. In addition to providing elastic projections, the hinge cylinder is formed with a notch perpendicular to the cylinder axis of the hinge cylinder, and the ring body is inserted into the notch so that the center axes of the ring body and the hinge cylinder coincide with each other. While being held, the elastic protrusion is engaged with the narrow rod portion of the core rod to hold the core rod.
[0010]
According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the narrow neck formed on the core rod is formed of an annular groove having a V-shaped cross section.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, embodiments of the invention will be described in detail with reference to the drawings. FIG. 1: shows 1st Embodiment of the hinge of this invention, (a) is a side view, (b) has shown the AA sectional view. In the figure, 1 is a main body side hinge tube, 2 is a cover plate side hinge tube, 3 is a core rod, 4 is a retainer, and two core rods 3 and 3 are arranged back to back as shown in the figure. It has a symmetrical shape. Reference numeral 1a denotes a main body such as a storage box, and 2a denotes a cover plate.
[0012]
The main body side hinge cylinder 1 is provided at both left and right ends of the hinge cylinder axis direction, and the lid plate side hinge cylinder 2 is arranged on the left and right so as to be adjacent to the inside thereof. Both main body side hinge cylinders 1, 1 are connected by a connecting plate 5, and a projection 6 is formed at the center of the connecting plate 5, that is, at the center of the hinge, toward the central axis M of the hinge tube. Further, the cover plate side hinge cylinders 2 and 2 are both formed with slits 7 in the direction perpendicular to the central axis M of the hinge cylinder in the middle, and the stoppers 4 are inserted and fixed.
[0013]
The stopper 4 has the shape shown in FIG. 2, (a) is a side view, (b) is a front view, and (c) is a BB cross section. As shown in the figure, the retainer 4 has a substantially ring shape having an insertion hole 9 through which the core rod 3 is inserted in the center. Tongue pieces 10 are provided on the wall surface of the insertion hole toward the center of the ring over the entire circumference. Is formed. The retaining member 4 including the tongue piece 10 is made of rubber, and the whole has elasticity, and the diameter of the insertion hole 9 is slightly larger than the inner diameter of the hinge tube.
On the other hand, the wall of the notch 7 is tapered so that the width of the notch 7 becomes narrower toward the center of the cylinder, and the width of the notch 7 is slightly narrower than the thickness of the retainer 4. In this way, when the retainer 4 is inserted into the notch 7, the taper-like protruding portion of the inner end of the notch wall surface engages with the insertion hole 9 of the inserted retainer 4, The stopper 4 is held by the notch 7.
[0014]
In this way, the retainer is locked and held in the notch of the hinge tube, so that the retainer can be engaged with the core rod only by inserting the core rod into the hinge tube by the tongue piece which is an elastic protrusion. Can do. Therefore, it is not necessary to separately attach the retainer and no special tool is required. Further, since the retainer is clamped and fixed to the hinge tube, there is no risk of losing it even when the core rod is pulled out, and the retainer can be held with a simple structure.
[0015]
The core rod 3 is provided with a head portion 3a having an enlarged diameter at the base portion of a cylindrical rod body having a uniform diameter, and the tip is rounded at the end portion so that it can be easily inserted. Are provided with V-shaped annular grooves in the circumferential direction to form narrow neck portions 12a and 12b having a reduced diameter. Among them, the first narrow neck 12a provided on the head side is a distance from the head 3a to the first narrow neck 12a and from the core rod insertion side end of the cover plate side hinge tube 2 to the notch 7. The distance between the first narrow neck portion 12a and the notch 7 coincides with each other, that is, the stopper 4 is formed to engage with the first narrow neck portion 12a. .
On the other hand, as shown in FIG. 3, the second narrow neck portion 12b provided on the distal end side is in a state where the core rod distal end portion is completely detached from the main body side hinge tube 1 and is still inserted into the lid plate side hinge tube 2. The stopper 4 is provided so as to be engaged.
[0016]
Further, the protrusion 6 formed on the connecting plate 5 is provided at a position where the head 3a abuts at the position where the core rod 3 has been pulled out to this state, and prevents further withdrawal of the core rod 3. . The complete removal operation of the core rod 3 is performed by moving the core rod 3 until the head 3a contacts the projection body 6 and then separating the main body side hinge cylinder 1 so that the projection body 6 is engaged with the core rod. Since it disappears from a position, it can carry out easily. In addition, the first core rod insertion operation is performed by inserting the core rod 3 into the cover plate side hinge 2 in a state where the main body side hinge tube 1 and the cover plate side hinge tube 2 are separated, and the retaining tool 4 on the second narrow neck portion. The lid plate side hinge cylinder 1 may be assembled in such a manner that the core rod 3 can be inserted in a state in which is engaged.
[0017]
As described above, since the narrow neck portion is provided in two places, the core rod is held in a state where the core rod is completely inserted by providing only one retainer, and the core rod is connected to the main body side hinge tube. Even if the cover plate side hinge tube is moved so that it can be separated, it is held in the state that it is inserted into the cover plate side hinge tube. There is no need to keep it.
In addition, since the protrusions reliably prevent the core rod from coming off, the core rod does not fall off during the hinge separation operation, so that the work can be performed with peace of mind. Furthermore, by making the narrow neck part into a V-shaped annular groove, it can be easily processed by rolling, and the wall surface is inclined so that the core rod can be removed even if the retainer is engaged. Easy operation.
[0018]
Next, a second embodiment of the hinge of the present invention will be described with reference to FIGS. 4A is a front view, FIG. 4B is a side view, and FIG. 5 is a front view showing a state in which the hinge is separated by moving the core rod. In the figure, 14 is a main body side hinge tube, 15 is a cover plate side hinge tube, 16 is a core rod, and the retainer 4 is attached to one main body side hinge tube 14 which is an insertion side hinge tube. As shown in the figure, the hinge has a configuration in which main body side hinge cylinders 14 and 14 are arranged at both front and rear ends, a lid plate side hinge cylinder 15 is arranged in the center, and one core rod 16 is inserted.
[0019]
In addition, the first and second narrow neck portions 17a and 17b formed on the core rod 16 are the same positions as in the first embodiment, that is, the first narrow neck portion 17a provided on the head side is The distance from the core rod head to the first narrow neck portion 17a and the distance from the core rod insertion side end of the cover plate side hinge cylinder 15 to the cutout 7 are substantially the same, and the core rod insertion is completed. The first narrow neck portion 17a and the notch 7 are sometimes coincident, that is, the stopper 4 is formed to engage with the first narrow neck portion 17a. The second narrow neck portion 17b provided on the distal end side is engaged with the stopper 4 in a state where the distal end portion of the core rod is completely detached from the main body side hinge tube 14 and inserted into the lid plate side hinge tube 15. It is provided to match.
[0020]
In this way, even if the core rod is constituted by one piece, the stopper can be engaged with the core rod when the insertion of the core rod is completed to prevent the core rod from being detached, and the main body side hinge tube can be removed during the extraction operation. Since the retainer is engaged with the core rod in this state, there is no need to remove the core rod and store it separately even when the hinge is separated.
The locking groove 7a provided at the target position is for attaching the retainer 4 when the hinge is reversed, and by forming in this way, the left-right reversing operation in the lid opening / closing direction is facilitated. . Further, a stopper may be provided also in the locking groove 7a, and the core rod 16 may be held and operated by two stoppers.
[0021]
FIG. 6 shows a third embodiment of the present invention. In this embodiment, the arrangement of the hinge cylinders 20 and 21 on the main body side and the cover plate side is the same as that in the configuration of FIG. 1, and a configuration using two core rods 22 and 22 is used. However, the relationship between the retainer 4 and the core rod 22 is different. In this embodiment, both the main body side hinge tube 20 and the lid plate side hinge tube 21 are formed with notches 7 so that both the retainer 4 (4a, 4b) are formed. ) And the core rod 22 is provided with a narrow neck portion 22a only at one position corresponding to the distal end side stopper 4b in a state in which the core rod 22 is completely inserted into the hinge tube. The insertion-side retainer 4a is provided at a position where the core rod 22 is moved so that the hinge tube can be separated and engaged with the narrow neck portion 22a while being inserted only into the insertion-side hinge tube. ing.
In this way, even if two stoppers are provided and the narrow neck portion is provided in one place, the core rod is held and fixed in a state where the core rod is completely inserted and in a state where the hinge is separable, so that the core rod may come off. And it is not necessary to remove the hinge completely when separating the hinges.
[0022]
In any of the above embodiments, the cover plate side hinge tube and the main body side hinge tube may be arranged in reverse. The stopper is preferably formed entirely of an elastic body such as rubber or soft resin, but at least the tongue piece only needs to have elasticity, and the ring portion may be formed of hard resin or metal. good.
[0023]
【The invention's effect】
As described above in detail, according to the first aspect of the present invention, since the retainer is attached to the core rod by the insertion operation of the core rod, the attachment operation of the retainer device is not required after the insertion, and for mounting. No special tools are required. Moreover, since the retainer is fixed to the hinge tube, there is no possibility of losing it even when the core rod is pulled out.
Furthermore, when the core rod is pulled out, the protrusion prevents the core rod from being pulled out at a position where the main body side hinge tube and the cover plate side hinge tube can be separated. There is no, you can work with confidence.
According to the second and third aspects of the invention, in addition to the effect of the first aspect of the invention, the core bar is held by the retainer even when the main body side hinge cylinder and the cover plate side hinge cylinder are separable. Therefore, when removing the cover plate, there is no need to remove the core rod and store it separately.
[0025]
According to the invention of claim 4 , in addition to the effect of any one of claims 1 to 3 , the retainer can be held on the hinge tube with a simple structure.
Further, according to the invention of claim 5 , in addition to the effect of any one of claims 1 to 4 , the narrow neck can be easily processed by rolling, and the wall of the narrow neck is inclined so that it falls out. Even if the stopper is in the engaged state, the core rod can be easily pulled out.
[Brief description of the drawings]
1A and 1B show a first embodiment of a hinge according to the present invention, in which FIG. 1A is a side view and FIG.
2 shows the retainer of FIG. 1, in which (a) is a side view, (b) is a front view, and (c) is a cross-sectional view taken along the line BB.
FIG. 3 is an enlarged front view showing the exploded explanatory view of FIG. 1 and showing a state in which a retaining device is locked to the second narrow neck portion of the core rod so that the hinge can be separated.
4A and 4B show a second embodiment of a hinge according to the present invention, wherein FIG. 4A is a front view, and FIG. 4B is a side view.
5 is an exploded explanatory view of FIG. 4, and is a front view showing a state in which a hinge can be separated by moving a core rod. FIG.
FIG. 6 is a front view of a hinge showing a third embodiment of the present invention.
FIG. 7 is a perspective view of a conventional hinge.
FIG. 8 is a perspective view of a conventional hinge.
[Explanation of symbols]
1 .. Hinge tube on the main body side 2... Hinge tube on the cover plate side 3... Core rod, 4, 4 a, 4 b. Notch, 9 ·· Through hole, 10 ·· Long piece, 12, 12a, 12b ·· Narrow neck, 14 ·· Hinges on the body side, 15 ·· Hinges on the cover plate, 16 ·· Core rods, 17 and 17a, 17b ·· Neck, 20 ··· Hinge on the body side, 21 ··· Hinge on the lid plate, 22 · · Core rod, 22a · · · Neck.

Claims

本体側蝶番筒と蓋板側蝶番筒の双方に共通の芯棒を挿通すると共に、該芯棒に設けた細頸部に抜け止め具を装着することで芯棒の抜けを防止する蝶番において、
前記抜け止め具は、前記本体側蝶番筒或いは蓋板側蝶番筒の少なくとも一方に固定され、前記芯棒は拡径された頭部を後端に有して、先端から蝶番筒へ挿通操作することで芯棒の細頸部に抜け止め具が係合して固定され、
蝶番筒軸方向左右端部に、本体側或いは蓋板側の何れか一方の蝶番筒を配置してその内側に他方の蝶番筒を夫々配置して更に中央に空間を設け、２本の前記芯棒を該中央の空間から夫々左右の蝶番筒に挿通して成り、
加えて左右端部に配置した一方の蝶番筒同士を連結する連結板から前記中央の空間へ突出させた突起体を有し、前記突起体は抜き取り操作した前記芯棒の先端が外側の蝶番筒から抜けた位置で芯棒頭部が当接するよう配置され、それ以上の抜けを阻止して芯棒の抜け落ちを防止することを特徴とする蝶番。In the hinge that prevents the core rod from coming off by inserting a common core rod into both the main body side hinge tube and the cover plate side hinge tube and attaching a stopper to the narrow neck portion provided on the core rod,
The retainer is fixed to at least one of the main body side hinge tube or the cover plate side hinge tube, and the core rod has an enlarged head at the rear end, and is inserted into the hinge tube from the front end. The stopper is engaged and fixed to the narrow neck of the core rod ,
Either the main body side or the cover plate side hinge cylinder is arranged at the left and right ends in the hinge cylinder axial direction, the other hinge cylinder is arranged inside thereof, and a space is provided in the center, and the two cores The rod is inserted through the central space into the left and right hinge tubes, respectively.
In addition, it has a protrusion that protrudes from the connecting plate that connects one of the hinge tubes arranged at the left and right ends to the central space, and the protrusion is pulled out and the tip of the core rod is the outer hinge tube A hinge characterized by being arranged so that the core rod head abuts at a position where the core rod is removed, and preventing further removal of the core rod to prevent the core rod from falling off .

抜け止め具を芯棒挿入側の蝶番筒に固定し、芯棒は、本体側蝶番筒と蓋板側蝶番筒の双方に挿通完了した際に抜け止め具が係合する第１細頸部と、双方の蝶番筒を分離可能に芯棒挿入側蝶番筒のみに挿入した状態で抜け止め具が係合する第２細頸部とを有する請求項１記載の蝶番。The retaining member is fixed to the hinge tube on the core rod insertion side, and the core rod is engaged with the first narrow neck portion that the retaining device engages when the insertion is completed in both the main body side hinge tube and the lid plate side hinge tube. The hinge according to claim 1, further comprising a second narrow neck portion with which the retaining member engages in a state in which both hinge tubes are inserted only into the core rod insertion side hinge tube so as to be separable.

抜け止め具を芯棒挿入側の蝶番筒と挿通した芯棒の先端側蝶番筒との双方に固定すると共に、芯棒は、本体側蝶番筒と蓋板側蝶番筒の双方に挿通完了した際に抜け止め具が係合する部位で且つ芯棒挿入側蝶番筒のみに挿通して双方の蝶番筒を分離可能とした状態で抜け止め具が係合する部位の１個所に細頸部を有する請求項１記載の蝶番。When the stopper is fixed to both the hinge tube on the core rod insertion side and the hinge tube on the tip of the inserted core rod, and the core rod is completely inserted into both the main body side hinge tube and the cover plate side hinge tube A narrow neck portion is provided at one portion of the portion where the retainer is engaged in a state where the retainer is engaged with the hinge member and only the hinge tube on the core rod insertion side is inserted and the both hinge tubes are separable. The hinge according to claim 1.

抜け止め具が芯棒を挿通可能なリング体であって、該リング体の挿通孔内にリング体中心に向けて弾性突起を設ける一方、蝶番筒に蝶番筒の筒軸に直交する切り欠きを形成し、前記リング体と蝶番筒の双方の中心軸が一致するようにリング体を切り欠きに挿入して挟持保持させると共に、前記弾性突起が芯棒細頸部に係合して芯棒を保持する請求項１乃至３の何れかに記載の蝶番。The retainer is a ring body through which the core rod can be inserted, and an elastic protrusion is provided in the insertion hole of the ring body toward the center of the ring body, while the hinge cylinder is provided with a notch perpendicular to the cylinder axis of the hinge cylinder. The ring body is inserted into the notch so that the center axes of both the ring body and the hinge tube coincide with each other and are held and held. The hinge according to any one of claims 1 to 3 , wherein the hinge is held.

芯棒に形成した細頸部が、断面Ｖ字状の環状溝から成る請求項１乃至４の何れかに記載の蝶番。The hinge according to any one of claims 1 to 4 , wherein the narrow neck formed on the core rod is formed of an annular groove having a V-shaped cross section.