JP3928386B2

JP3928386B2 - Door lock device

Info

Publication number: JP3928386B2
Application number: JP2001253914A
Authority: JP
Inventors: 篤志中本; 雄二平井
Original assignee: Matsushita Electric Works Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 2001-08-24
Filing date: 2001-08-24
Publication date: 2007-06-13
Anticipated expiration: 2021-08-24
Also published as: JP2003064923A

Description

【０００１】
【発明が属する技術分野】
本発明は、扉鎖錠装置に関する。具体的には、左右両開き用に対応した扉鎖錠装置に関する。
【０００２】
【従来の技術】
分電盤や制御盤等を収納する箱体に扉が開閉自在に取着された収納箱には、蝶番が扉の右側に設けられる所謂左開き扉と、蝶番が扉の左側に備えられるいわゆる右開き扉とがある。これらの収納箱に取り付けられる扉鎖錠装置においては、左開き扉にも右開き扉にでも対応できるよう種々の工夫が施される。
【０００３】
その一方で、鎖錠板が解錠位置から回転し過ぎることを防ぐため、鎖錠板の回転角度が規制された扉鎖錠装置が用いられる。鎖錠板の回転角度を規制するため、例えば、特開平１０−１３１５７０号公報や特開平１０−１３１５７１号公報に開示された扉鎖錠装置には、扉鎖錠装置を構成する本体ケースの裏面に備えられた回転角度規制溝と、当該回転角度規制溝に挿入され扉裏面側において鎖錠板に取着される回転角度規制ピンとが備えられている。
【０００４】
このようなハンドルの回転角度が規制された扉鎖錠装置においては、左開き扉にも右開き扉にも対応するためには、従来、鎖錠板そのものを左開き扉用、右開き扉用として別部品にするか、上記特開平１０−１３１５７０号公報や特開平１０−１３１５７１号公報に開示されたように、回転角度規制ピンと鎖錠板とを別体に構成して、鎖錠板をハンドルの回転軸回りに回転させて、回転角度規制ピンの取着位置を組み替えることによって対応していた。
【０００５】
【発明が解決しようとする課題】
しかしながら、鎖錠板を別部品にすれば鎖錠板の品種が増え、部品管理が煩わしく、製造コストの増大にもつながっていた。また、回転角度規制ピンを組み替えることにすれば、鎖錠板の付け替えのみならず回転角度規制ピンの付け替えという手間が必要となるだけでなく、部品点数の増大にもつながり、しかも、回転角度規制ピンを紛失する可能性もあった。
【０００６】
本発明は上記従来技術の問題点を解決すべくなされたものであって、鎖錠板を表裏反転させて付け替えるという簡単な組み替えにより、別部品とすることなく左開き扉、右開き扉のいずれにも対応できる、手間のかからない扉鎖錠装置を提供することにある。
【０００７】
【課題を解決するための手段】
本願第１の発明に係る扉鎖錠装置は、貫通孔を有して扉に取着される本体ケースと、当該本体ケースの貫通孔に表面側から貫通する連結軸を有し、連結軸の軸回りに回動自在なハンドルと、前記本体ケースの裏面側で前記貫通孔から貫通した連結軸に連結され、ハンドルの所定回動範囲内で扉の側面に配設される箱体の開口縁部に係合又は非係合状態となって施錠したり解錠したりする鎖錠板とを備え、前記本体ケースの裏面に形成した回転角度規制溝と、回転角度規制溝に挿入され、前記鎖錠板に備えられた回転角度規制ピンとによって、鎖錠板の回動範囲が制限された扉鎖錠装置において、前記鎖錠板のいずれか一方の面に第１の回転角度規制ピンを鎖錠板と一体に設けると共に当該第１の回転角度規制ピンが挿入される回転角度規制溝を備え、当該鎖錠板を表裏反転させ鎖錠板が本体ケースから突出する向きを反転させるようにした場合に、前記回転角度規制溝に挿入される第２の回転角度規制ピンを前記鎖錠板の残る一方の面に鎖錠板と一体に設けたことを特徴としている。
【０００８】
また、本願第２の発明に係る扉鎖錠装置は、貫通孔を有して扉に取着される本体ケースと、当該本体ケースの貫通孔に表面側から貫通する連結軸を有し、連結軸の軸回りに回動自在なハンドルと、前記本体ケースの裏面側で前記貫通孔から貫通した連結軸に連結され、ハンドルの所定回動範囲内で扉の側面に配設される箱体の開口縁部に係合又は非係合状態となって施錠したり解錠したりする鎖錠板とを備え、前記本体ケースの裏面に形成した回転角度規制溝と、回転角度規制溝に挿入され、前記鎖錠板に備えられた回転角度規制ピンとによって、鎖錠板の回動範囲が制限された扉鎖錠装置において、前記鎖錠板のいずれか一方の面に第１の回転角度規制ピンを、残る一方の面に第２の回転角度規制ピンをそれぞれ鎖錠板と一体に設けると共に、前記第１の回転角度規制ピンが挿入される第１の回転角度規制溝と、当該鎖錠板を表裏反転させ鎖錠板が本体ケースから突出する向きを反転させるようにした場合に、前記第２の回転角度規制ピンが挿入される第２の回転角度規制溝とを設けたことを特徴としている。
【０００９】
さらに、本願第３の発明に係る扉鎖錠装置は、貫通孔を有して扉に取着される本体ケースと、当該本体ケースの貫通孔に表面側から貫通する連結軸を有し、連結軸の軸回りに回動自在なハンドルと、前記本体ケースの裏面側で前記貫通孔から貫通した連結軸に連結され、ハンドルの所定回動範囲内で扉の側面に配設される箱体の開口縁部に係合又は非係合状態となって施錠したり解錠したりする鎖錠板とを備え、前記鎖錠板に形成した回転角度規制溝と、回転角度規制溝に挿入され、前記本体ケースの裏面に備えられた回転角度規制ピンとによって、鎖錠板の回動範囲が制限された扉鎖錠装置において、前記鎖錠板に前記回転角度規制ピンが挿入される第１の回転角度規制溝と、当該鎖錠板を表裏反転させて鎖錠板が本体ケースから突出する向きを反転させるようにした場合に、前記回転角度規制ピンが挿入される第２の回転角度規制溝とを設けたことを特徴としている。
【００１０】
これらいずれの扉鎖錠装置においても、前記鎖錠板の先端部に保護キャップを備え、当該保護キャップの両側面に、箱体の開口縁部に鎖錠板を係止容易にするガイド部及び開口縁部に当接する弾性部とを備えるのが好ましい。
【００１１】
【発明の実施の形態】
以下、本発明について各図に従って詳細に説明する。まず、本願第１の発明に係る扉鎖錠装置について説明する。図１〜図７は当該発明の一実施形態に係る扉鎖錠装置に関するものであって、図１はその一実施形態を示す分解斜視図、図２は右開き扉用としての扉鎖錠装置を示す背面図であって、解錠状態を示す図、図３はその施錠状態を示す図、図４は図３に示すＡ−Ａ線断面図、図５は左開き扉用としての扉鎖錠装置を示す背面図であって、解錠状態を示す図、図６はその施錠状態を示す図、図７は図６に示すＢ−Ｂ線断面図、図８は鎖錠板に取り付けられる保護キャップを示す図である。
【００１２】
当該扉鎖錠装置は、図１に示すように、扉Ａ（図４又は図７参照）に取着される本体ケース１とこの本体ケース１の表面側に回動自在に取着されるハンドル２と本体ケース１の裏面側でハンドル２に連結される鎖錠板３とにて構成される。この扉鎖錠装置は、基本的には特開平１０−１３１５７１号公報あるいは特開平１０−１３１５７０号公報に示す構成と同一であり、異なる点は本体ケース１の裏面側と鎖錠板３であるので、これらの点を中心に説明する。
【００１３】
本体ケース１は、図１に示すように、表面側から裏面側にかけて貫通する貫通孔４が穿孔してあり、この貫通孔４に後述するハンドル２の連結軸５が挿通されてハンドル２を連結軸５の軸回りに回動自在に支持する。本体ケース１の裏面側で貫通孔４周囲の連結軸５の軸回りには、鎖錠板３の回動範囲をそれぞれ約９０度の範囲で規制する回転角度規制溝１１が一つ形成されている。
【００１４】
ハンドル２は、本体ケース１の表面側に装着されるものであって、本体ケース１の貫通孔４から本体ケース１の裏面側に貫通する角軸状の連結軸５を有し、ハンドル２を連結軸５の軸回りに回動操作することでハンドル２と一緒に連結軸５が回動するようになっている。
【００１５】
鎖錠板３は、本体ケース１の裏面側で貫通孔４から貫通したハンドル２の連結軸５に連結されて箱体Ｂの開口縁部１５若しくは扉裏面側に係合又は非係合状態となって扉Ａを施錠を施錠したり解錠したりするものであって、本体ケース１の裏面側でハンドル２に対して直交する方向で連結軸５に連結される。この鎖錠板３の基端側には、本体ケース１裏面側の貫通孔４近傍に位置させた状態で角軸状の連結軸５に嵌合する角孔状の連結孔６が形成されており、連結孔６を連結軸５に嵌合させた状態で取着ネジ７を連結軸５に螺合させることによりハンドル２と鎖錠板３とが連結される。
【００１６】
この鎖錠板３の一方の面には、上記回転角度規制溝１１に挿入されて当該溝１１との間で鎖錠板３の回動角度を規制する第１の回転角度規制ピン１２ａが鎖錠板３と一体に設けられている。この第１の回転角度規制ピン１２ａは、例えば右開き扉用に備えられており、図２及び図３に示す如く、解錠状態と鎖錠状態との間で、鎖錠板３の回動角度が略９０度に規制される。
【００１７】
また、鎖錠板３の残る面にも、上記回転角度規制溝１１に挿入されて当該溝１１との間で鎖錠板３の回動角度を規制する第２の回転角度規制ピン１２ｂが鎖錠板３と一体に設けられている。第１の回転角度規制ピン１２ａが右開き扉用であるのに対し、この第２の回転角度規制ピン１２ｂは、図５及び図６に示す如く、左開き扉用に備えられており、解錠状態と鎖錠状態との間で、鎖錠板３の回動角度が略９０度に規制される。
【００１８】
具体的に言えば、第２の回転角度規制ピン１２ｂは、第１の回転角度規制ピン１２ａに対し、鎖錠板３の裏面側で連結軸５の軸回りに１８０度回転させた位置に備えられ、鎖錠板３を表裏反転させて鎖錠板３が本体ケース１から突出する向きを略１８０度反転させた場合に、本体ケース１裏面の回転角度規制溝１１に挿入可能になっている。
【００１９】
鎖錠板３の先端には、図８に示すような保護キャップ８が取着されている。当該保護キャップ８は、箱体Ｂの開口縁部に鎖錠板３を係止容易にするガイド部１３を備えている。このガイド部１３は、その両側面においてその中央部分から上下方向に掛けて薄くなるように傾斜状に形成されると共に鎖錠板１３の先端から基端部方向に掛けて厚みを増すように傾斜状に形成される。この結果、右開き扉用あるいは左開き扉用のいずれに取着したとしても、鎖錠板３の回転に併せて、鎖錠板３が箱体Ｂの開口縁部１５に係合しやすくなっている。また、保護キャップ８の両側面中央には、箱体Ｂの開口縁部１５に当接する断面略半円状の弾性部１４を備えており、開口縁部１５に点接触する形となって扉Ａのがたつきを最小限に抑えることができるようになっている。
【００２０】
しかして、この扉鎖錠装置において、図１及び図２、図３、図４に示す如く、第１の回転角度規制ピン１２ａを回転角度規制溝１１に挿入するように鎖錠板３を取着した場合には、当該回転角度規制溝１１内で第１の回転角度規制ピン１２ａの移動が制限され、ハンドル２を回動操作することにより鎖錠板３が箱体Ｂの開口縁部１５に係合又は非係合状態となって扉Ａを施錠したり解錠したりすることができる。また、図５及び図６、図７に示す如く、鎖錠板３を表裏反転させて、第２の回転角度規制ピン１２ｂを回転角度規制溝１１に挿入するように鎖錠板３を取着した場合には、当該回転角度規制溝１１内で第２の回転角度規制ピン１２ｂの移動が制限され、ハンドル２を回動操作することにより鎖錠板３が箱体Ｂの裏面側に係合又は非係合状態となって扉Ａを施錠したり解錠したりすることができる。このように、鎖錠板３を表裏反転させて鎖錠板３が本体ケース１から突出する向きを略１８０度反転させることによって、右開き用の扉と左開き用の扉とのどちらでも取着することができる。
【００２１】
また、保護キャップ８によって、図２（又は図５）に示すハンドル２が突出した状態から図３（又は図６）に示す位置にハンドル２を回動させると、保護キャップ８のガイド部１３によって鎖錠板３がスムーズに開口縁部１５に係合され、また、弾性部１４が箱体Ｂの開口縁部１５に当接して、扉Ａのがたつきが防止される。
【００２２】
なお、回転角度規制ピン１２は鎖錠板３に一体に形成されればよく、例えば鎖錠板３と一体に成形加工したり、溶接や接着によって鎖錠板３に取着してもよい。また、螺合手段等によって鎖錠板３に螺合させてもよい。
【００２３】
このように、当該扉鎖錠装置においては、回転角度規制ピン１２を付け替えたりすることなく、右開き扉用の扉鎖錠装置として、あるいは左開き扉用の扉鎖錠装置とすることができる。また、一の回転角度規制溝１１を設けるのみで、右開き用扉、左開き用扉のいずれにでも対応できる。
【００２４】
次に、本願第２の発明について説明する。図９〜図１５は当該発明の一実施形態に係る扉鎖錠装置に関するものであって、図９はその一実施形態を示す分解斜視図、図１０は右開き扉用としての扉鎖錠装置を示す背面図であって、解錠状態を示す図、図１１はその施錠状態を示す図、図１２は図１１に示すＡ−Ａ線断面図、図１３は左開き扉用としての扉鎖錠装置を示す背面図であって、解錠状態を示す図、図１４はその施錠状態を示す図、図１５は図１４に示すＢ−Ｂ線断面図である。
【００２５】
当該扉鎖錠装置は、図９に示すように、扉Ａ（図１２又は図１５参照）に取着される本体ケース１とこの本体ケース１の表面側に回動自在に取着されるハンドル２と本体ケース１の裏面側でハンドル２に連結される鎖錠板３とにて構成される点では同様であるが、本体ケース１の裏面側には、２つの回転角度規制溝１１ａ，１１ｂが備えられ、鎖錠板３に設けられる第１の回転角度規制ピン１２ａ及び第２の回転角度規定ピン１２ｂの相対位置が違う点で異なるのみである。
【００２６】
第１の回転角度規制溝１１ａ及び第２の回転角度規制溝１１ｂは、本体ケース１の裏面側で貫通孔４の回りに１８０度回転した位置に備えられる。この鎖錠板３の一方の面には、上記いずれか一方の回転角度規制溝（第１の回転角度規制溝１１ａ）に挿入されて当該第１の回転角度規制溝１１ａとの間で鎖錠板３の回動角度を規制する第１の回転角度規制ピン１２ａが鎖錠板３と一体に設けられている。これら第１の回転角度規制ピン１２ａ及び第１の回転角度規制溝１１ａは、例えば右開き扉用に備えられており、図１０及び図１１に示す如く、解錠状態と鎖錠状態との間で、鎖錠板３の回動角度が略９０度に規制される。
【００２７】
また、鎖錠板３の残る面にも、残る一方の回転角度規制溝（第２の回転角度規制溝１１ｂ）に挿入されて当該第２の回転角度規制溝１１ｂとの間で鎖錠板３の回動角度を規制する第２の回転角度規制ピン１２ｂが鎖錠板３と一体に設けられている。第１の回転角度規制ピン１２ａが右開き扉用であるのに対し、この第２の回転角度規制ピン１２ｂは、図１３及び図１４に示す如く、左開き扉用に備えられており、解錠状態と鎖錠状態との間で、鎖錠板３の回動角度が略９０度に規制される。
【００２８】
具体的に言えば、第１の回転角度規制ピン１２ａと第２の回転角度規制ピン１２ｂは、鎖錠板３の表裏面側でほぼ同じ位置に備えられ、鎖錠板３を表裏反転させて鎖錠板３が本体ケース１から突出する向きを略１８０度反転させた場合に、鎖錠板３の一方の面に備えられた第１の回転角度規制ピン１２ａ（又は第２の回転角度規制ピン１２ｂ）が本体ケース１裏面の第１の回転角度規制溝１１ａ（又は第２の回転角度規制溝１１ｂ）に挿入可能になっている。なお、この第１の回転角度規制ピン１２ａと第２の回転角度規制ピン１２ｂは、上記の如くそれぞれ鎖錠板３と一体に設けることができればよく、一の軸棒を鎖錠板３に挿通させて設けることもできる。
【００２９】
しかして、この扉鎖錠装置において、図９及び図１０、図１１、図１２に示す如く、第１の回転角度規制ピン１２ａを第１の回転角度規制溝１１ａに挿入するように鎖錠板３を取着した場合には、溝内で第１の回転角度規制ピン１２ａの移動が制限され、ハンドル２を回動操作することにより鎖錠板３が箱体Ｂの開口縁部１５に係合又は非係合状態となって扉Ａを施錠したり解錠したりすることができる。また、図１３及び図１４、図１５に示す如く、鎖錠板３を表裏反転させて、第２の回転角度規制ピン１２ｂを回転角度規制溝１１に挿入するように鎖錠板３を取着した場合には、溝内で第２の回転角度規制ピン１２ｂの移動が制限され、ハンドル２を回動操作することにより鎖錠板３が箱体Ｂの開口縁部１５に係合又は非係合状態となって扉Ａを施錠したり解錠したりすることができる。このように、鎖錠板３を表裏反転させて、鎖錠板３が本体ケース１から突出する向きを略１８０度反転させることによって、右開き用の扉と左開き用の扉とのどちらでも取着することができるようになっている。
【００３０】
この扉鎖錠装置においても、回転角度規制ピン１２ａ，１２ｂを付け替えることなく、右開き扉用、左開き扉用のいずれにでも対応することができる。
【００３１】
次いで、本願第３の発明について説明する。図１６〜図２２は当該発明の一実施形態に係る扉鎖錠装置に関するものであって、図１６はその一実施形態を示す分解斜視図、図１７は右開き扉用としての扉鎖錠装置を示す背面図であって、解錠状態を示す図、図１８はその施錠状態を示す図、図１９は図１８に示すＡ−Ａ線断面図、図２０は左開き扉用としての扉鎖錠装置を示す背面図であって、解錠状態を示す図、図２１はその施錠状態を示す図、図２２は図２１に示すＢ−Ｂ線断面図である。
【００３２】
当該扉鎖錠装置は、図１６に示すように、扉Ａ（図１９又は２２参照）に取着される本体ケース１とこの本体ケース１の表面側に回動自在に取着されるハンドル２と本体ケース１の裏面側でハンドル２に連結される鎖錠板３とにて構成される点では同様であるが、本体ケース１の裏面側に一つの回転角度規制ピン１２が備えられ、鎖錠板３に前記回転角度規制ピン１２を挿入する２つの回転角度規制溝１１ａ，１１ｂが備えられている点で異なっている。
【００３３】
この鎖錠板３には、上記回転角度規制ピン１２が挿入されて当該回転角度規制ピン１２との間で鎖錠板３の回動角度を規制する第１の回転角度規制溝１１ａと第２の回転角度規制溝１１ｂが設けられている。第１の回転角度規制溝１１ａは、右開き扉用に備えられており、図１７及び図１８に示す如く、解錠状態と鎖錠状態との間で、鎖錠板３の回動角度が略９０度に規制される。また、鎖錠板３には、上記回転角度規制ピン１２が挿入されて当該回転角度規制ピン１２との間で鎖錠板３の回動角度を規制する第２の回転角度規制溝１１ｂが設けられている。第１の回転角度規制溝１１ａが右開き扉用であるのに対し、この第２の回転角度規制溝１１ｂは、図２０及び図２１に示す如く、左開き扉用に備えられており、解錠状態と鎖錠状態との間で、鎖錠板３の回動角度が略９０度に規制される。
【００３４】
具体的に言えば、第２の回転角度規制溝１１ｂは、第１の回転角度規制溝１１ａに対し、貫通孔４の回りに１８０度回転させた位置に備えられ、鎖錠板３を表裏反転させて鎖錠板３が本体ケース１から突出する向きを略１８０度反転させた場合に、本体ケース１裏面の回転角度規制ピン１２を挿入可能になっている。
【００３５】
しかして、この扉鎖錠装置において、図１６及び図１７、図１８、図１９に示す如く、回転角度規制ピン１２を第１の回転角度規制溝１１ａに挿入するように鎖錠板３を取着した場合には、第１の回転角度規制溝１１ａ内で回転角度規制ピン１２の移動が制限され、ハンドル２を回動操作することにより鎖錠板３が箱体Ｂの開口縁部１５に係合又は非係合状態となって扉Ａを施錠したり解錠したりすることができる。また、図２０及び図２１、図２２に示す如く、鎖錠板３を表裏反転させて回転角度規制ピン１２を第２の回転角度規制溝１１ｂに挿入するように鎖錠板３を取着した場合には、第２の回転角度規制溝１１ｂ内で回転角度規制ピン１２の移動が制限され、ハンドル２を回動操作することにより鎖錠板３が箱体Ｂの開口縁部１５に係合又は非係合状態となって扉Ａを施錠したり解錠したりすることができる。このように、鎖錠板３を表裏反転させて、鎖錠板３が本体ケース１から突出する向きを略１８０度反転させることによって、右開き用の扉と左開き用の扉のどちらでも取着することができるようになっている。
【００３６】
このように、この扉鎖錠装置においても、回転角度規制ピン１２を付け替えることなく、右開き扉用、左開き扉用のいずれにでも対応することができる。
【００３７】
【発明の効果】
本願発明に係る扉鎖錠装置のいずれにおいても、回転角度規制ピンが鎖錠板と一体に備えられ、鎖錠板を表裏反転させ鎖錠板が本体ケースから突出する向きを反転させるようにした場合に、鎖錠板若しくは本体ケースに備えられた回転角度規制ピンが、本体ケース若しくは鎖錠板に設けられた回転角度規制溝に挿入されるようになっている。この結果、鎖錠板を表裏反転させ鎖錠板の取着方向を変えることにより、回転角度規制ピンを付け替えることなく、右開き扉、左開き扉のいずれにでも対応することができる。
【図面の簡単な説明】
【図１】本願第１の発明の一実施形態に係る扉鎖錠装置の分解斜視図である。
【図２】同上の右開き扉用としての扉鎖錠装置を示す背面図であって、解錠状態を示す図である。
【図３】同上の右開き扉用としての扉鎖錠装置を示す背面図であって、施錠状態を示す図である。
【図４】図３に示すＡ−Ａ線断面図である。
【図５】同上の左開き扉用としての扉鎖錠装置を示す背面図であって、解錠状態を示す図である。
【図６】同上の左開き扉用としての扉鎖錠装置を示す背面図であって、施錠状態を示す図である。
【図７】図６に示すＡ−Ａ線断面図である。
【図８】鎖錠板に取り付けられる保護キャップを示す図であって、同図（ａ）はその左側面図、同図（ｂ）はその正面図、同図（ｃ）はその右側面図、同図（ｄ）はその上面図である。
【図９】本願第２の発明の一実施形態に係る扉鎖錠装置の分解斜視図である。
【図１０】同上の右開き扉用としての扉鎖錠装置を示す背面図であって、解錠状態を示す図である。
【図１１】同上の右開き扉用としての扉鎖錠装置を示す背面図であって、施錠状態を示す図である。
【図１２】図１１に示すＡ−Ａ線断面図である。
【図１３】同上の左開き扉用としての扉鎖錠装置を示す背面図であって、解錠状態を示す図である。
【図１４】同上の左開き扉用としての扉鎖錠装置を示す背面図であって、施錠状態を示す図である。
【図１５】図１４に示すＢ−Ｂ線断面図である。
【図１６】本願第３の発明の一実施形態に係る扉鎖錠装置の分解斜視図である。
【図１７】同上の右開き扉用としての扉鎖錠装置を示す背面図であって、解錠状態を示す図である。
【図１８】同上の右開き扉用としての扉鎖錠装置を示す背面図であって、施錠状態を示す図である。
【図１９】図１８に示すＡ−Ａ線断面図である。
【図２０】同上の左開き扉用としての扉鎖錠装置を示す背面図であって、解錠状態を示す図である。
【図２１】同上の左開き扉用としての扉鎖錠装置を示す背面図であって、施錠状態を示す図である。
【図２２】図２１に示すＢ−Ｂ線断面図である。
【符号の説明】
１本体ケース
２ハンドル
３鎖錠板
４貫通孔
５連結軸
８保護キャップ
１１，１１ａ，１１ｂ回転角度規制溝
１２，１２ａ，１２ｂ回転角度規制ピン
１３ガイド部
１４弾性部
１５開口縁部
Ａ扉
Ｂ箱体[0001]
[Technical field to which the invention belongs]
The present invention relates to a door lock device. More specifically, the present invention relates to a door locking device that supports both left and right opening.
[0002]
[Prior art]
In a storage box in which a door is detachably attached to a box for storing a distribution board, a control panel, etc., a so-called left-opening door in which a hinge is provided on the right side of the door, and a so-called hinge on the left side of the door are provided. There is a right door. In the door lock apparatus attached to these storage boxes, various devices are provided so as to cope with both the left door and the right door.
[0003]
On the other hand, in order to prevent the locking plate from rotating too much from the unlocking position, a door locking device in which the rotation angle of the locking plate is regulated is used. In order to regulate the rotation angle of the locking plate, for example, the door locking device disclosed in Japanese Patent Application Laid-Open No. 10-131570 and Japanese Patent Application Laid-Open No. 10-131571 includes a back surface of a main body case constituting the door locking device. And a rotation angle restriction pin that is inserted into the rotation angle restriction groove and is attached to the lock plate on the back side of the door.
[0004]
In such a door locking device in which the rotation angle of the handle is regulated, conventionally, the locking plate itself is used for the left opening door and the right opening door in order to cope with the left opening door and the right opening door. Or as disclosed in JP-A-10-131570 and JP-A-10-131571, the rotation angle regulating pin and the locking plate are configured separately, and the locking plate is This was done by rotating around the rotation axis of the handle and rearranging the mounting position of the rotation angle regulating pin.
[0005]
[Problems to be solved by the invention]
However, if the lock plate is a separate part, the variety of the lock plate is increased, the parts management is troublesome, and the manufacturing cost is increased. In addition, if the rotation angle restriction pin is changed, not only is it necessary to replace the locking plate but also the change of the rotation angle restriction pin, it also leads to an increase in the number of parts and the rotation angle restriction. There was also the possibility of losing the pin.
[0006]
The present invention has been made to solve the above-mentioned problems of the prior art, and by simply changing the lock plate by reversing the front and back, either the left opening door or the right opening door can be used without separate parts. Another object of the present invention is to provide a hassle-free door lock device that can cope with the above.
[0007]
[Means for Solving the Problems]
The door locking device according to the first invention of the present application has a main body case that has a through hole and is attached to the door, and a connecting shaft that penetrates the through hole of the main body case from the surface side. An opening edge of a box that is connected to a handle that is rotatable about an axis and a connecting shaft that penetrates from the through hole on the back side of the main body case, and that is disposed on a side surface of the door within a predetermined rotation range of the handle. A locking plate that is locked or unlocked in an engaged or disengaged state with the part, and is inserted into a rotation angle restriction groove formed on the back surface of the main body case, and the rotation angle restriction groove, In the door lock device in which the rotation range of the lock plate is limited by the rotation angle restriction pin provided on the lock plate, the first rotation angle restriction pin is chained to one surface of the lock plate. Rotation angle restriction groove provided integrally with the lock plate and into which the first rotation angle restriction pin is inserted A second rotation angle restricting pin inserted into the rotation angle restricting groove when the lock plate is reversed so that the direction in which the lock plate protrudes from the main body case is reversed. It is characterized in that it is provided integrally with the lock plate on the other surface.
[0008]
Further, the door locking device according to the second invention of the present application has a main body case that has a through hole and is attached to the door, and a connecting shaft that penetrates from the surface side to the through hole of the main body case. A handle that is rotatable about an axis of a shaft, and a box that is connected to a connecting shaft that penetrates from the through hole on the back side of the main body case, and is disposed on a side surface of the door within a predetermined rotation range of the handle. A locking plate that is locked or unlocked in an engaged or disengaged state at the opening edge, and is inserted into a rotation angle restriction groove formed on the back surface of the main body case, and the rotation angle restriction groove In the door lock device in which the rotation range of the lock plate is limited by the rotation angle restriction pin provided on the lock plate, the first rotation angle restriction pin on one surface of the lock plate If the second rotation angle restricting pin is provided integrally with the locking plate on the other surface, , When the first rotation angle restriction groove into which the first rotation angle restriction pin is inserted, and when the lock plate is reversed so that the direction in which the lock plate protrudes from the main body case is reversed, A second rotation angle restriction groove into which the second rotation angle restriction pin is inserted is provided.
[0009]
Furthermore, the door locking device according to the third invention of the present application has a main body case that has a through-hole and is attached to the door, and a connecting shaft that penetrates the through-hole of the main body case from the surface side. A handle that is rotatable about an axis of a shaft, and a box that is connected to a connecting shaft that penetrates from the through hole on the back side of the main body case, and is disposed on a side surface of the door within a predetermined rotation range of the handle. A locking plate that is locked or unlocked in an engaged or non-engaged state at the opening edge, and is inserted into the rotation angle regulating groove formed in the locking plate, In the door lock device in which the rotation range of the lock plate is limited by the rotation angle restriction pin provided on the back surface of the main body case, the first rotation in which the rotation angle restriction pin is inserted into the lock plate The angle control groove and the lock plate are turned upside down, and the lock plate protrudes from the body case When to invert the can, and wherein the rotation angle restricting pin is provided and a second rotational angle restricting groove to be inserted.
[0010]
In any of these door locking devices, a protective cap is provided at the tip of the locking plate, and a guide portion that makes it easy to lock the locking plate to the opening edge of the box on both side surfaces of the protective cap; It is preferable to provide an elastic portion that comes into contact with the opening edge.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings. First, the door locking device according to the first invention of the present application will be described. 1 to 7 relate to a door locking device according to an embodiment of the present invention, FIG. 1 is an exploded perspective view showing the embodiment, and FIG. 2 is a door locking device for a right opening door. FIG. 3 is a rear view showing the unlocked state, FIG. 3 is a diagram showing the locked state, FIG. 4 is a cross-sectional view taken along the line AA in FIG. 3, and FIG. It is a rear view which shows a locking device, A figure which shows an unlocking state, FIG. 6 is a figure which shows the locking state, FIG. 7 is a BB sectional drawing shown in FIG. 6, FIG. It is a figure which shows a protective cap.
[0012]
As shown in FIG. 1, the door locking device includes a main body case 1 attached to a door A (see FIG. 4 or 7) and a handle attached to the surface side of the main body case 1 so as to be rotatable. 2 and a locking plate 3 connected to the handle 2 on the back side of the main body case 1. This door locking device is basically the same as the configuration shown in Japanese Patent Application Laid-Open No. 10-131571 or Japanese Patent Application Laid-Open No. 10-131570, and the difference is the back side of the main body case 1 and the lock plate 3. Therefore, these points will be mainly described.
[0013]
As shown in FIG. 1, the main body case 1 has a through hole 4 penetrating from the front surface side to the back surface side, and a connecting shaft 5 of the handle 2 described later is inserted into the through hole 4 to connect the handle 2. The shaft 5 is supported so as to be rotatable about the axis. Around the axis of the connecting shaft 5 around the through hole 4 on the back side of the main body case 1, there is formed one rotation angle restriction groove 11 for restricting the rotation range of the locking plate 3 within a range of about 90 degrees. Yes.
[0014]
The handle 2 is attached to the front surface side of the main body case 1, and has a square shaft-like connecting shaft 5 that penetrates from the through hole 4 of the main body case 1 to the back surface side of the main body case 1. The connecting shaft 5 is rotated together with the handle 2 by rotating around the connecting shaft 5.
[0015]
The locking plate 3 is connected to the connecting shaft 5 of the handle 2 penetrating from the through hole 4 on the back side of the main body case 1 and is engaged or disengaged with the opening edge 15 of the box B or the back side of the door. Thus, the door A is locked or unlocked, and is connected to the connecting shaft 5 in the direction orthogonal to the handle 2 on the back side of the main body case 1. On the base end side of the locking plate 3, a rectangular hole-shaped connecting hole 6 is formed that fits into the rectangular shaft-shaped connecting shaft 5 while being positioned in the vicinity of the through-hole 4 on the back side of the body case 1. The handle 2 and the locking plate 3 are connected by screwing the attachment screw 7 to the connecting shaft 5 with the connecting hole 6 fitted to the connecting shaft 5.
[0016]
A first rotation angle restriction pin 12 a that is inserted into the rotation angle restriction groove 11 and restricts the rotation angle of the lock plate 3 with the groove 11 is chained on one surface of the lock plate 3. It is provided integrally with the lock plate 3. The first rotation angle regulating pin 12a is provided, for example, for a right opening door, and as shown in FIGS. 2 and 3, the locking plate 3 is rotated between the unlocked state and the locked state. The angle is regulated to approximately 90 degrees.
[0017]
Further, a second rotation angle restriction pin 12 b that is inserted into the rotation angle restriction groove 11 and restricts the rotation angle of the lock plate 3 with the groove 11 is also provided on the remaining surface of the lock plate 3. It is provided integrally with the lock plate 3. Whereas the first rotation angle regulating pin 12a is for a right opening door, the second rotation angle regulating pin 12b is provided for a left opening door as shown in FIGS. The rotation angle of the locking plate 3 is restricted to approximately 90 degrees between the locked state and the locked state.
[0018]
Specifically, the second rotation angle restriction pin 12b is provided at a position rotated 180 degrees around the axis of the connecting shaft 5 on the back surface side of the locking plate 3 with respect to the first rotation angle restriction pin 12a. When the locking plate 3 is reversed upside down so that the direction in which the locking plate 3 protrudes from the main body case 1 is reversed by approximately 180 degrees, the locking plate 3 can be inserted into the rotation angle regulating groove 11 on the back surface of the main body case 1. .
[0019]
A protective cap 8 as shown in FIG. 8 is attached to the tip of the locking plate 3. The protective cap 8 includes a guide portion 13 that facilitates locking the locking plate 3 at the opening edge of the box B. The guide portion 13 is formed in an inclined shape so as to be thinned in the vertical direction from the center portion on both side surfaces thereof, and is inclined so as to increase in thickness from the distal end of the locking plate 13 toward the proximal end portion. It is formed in a shape. As a result, the locking plate 3 is easily engaged with the opening edge 15 of the box B in accordance with the rotation of the locking plate 3 regardless of whether it is attached to the right opening door or the left opening door. ing. Further, at the center of both side surfaces of the protective cap 8, there is provided an elastic portion 14 having a substantially semicircular cross section that comes into contact with the opening edge 15 of the box B. The play of A can be minimized.
[0020]
Thus, in this door lock device, the lock plate 3 is removed so that the first rotation angle restricting pin 12a is inserted into the rotation angle restricting groove 11 as shown in FIG. 1, FIG. 2, FIG. 3, and FIG. When worn, the movement of the first rotation angle restricting pin 12a is restricted in the rotation angle restricting groove 11, and the lock plate 3 is moved to the opening edge 15 of the box B by rotating the handle 2. The door A can be locked or unlocked when engaged or disengaged. Further, as shown in FIGS. 5, 6, and 7, the locking plate 3 is reversed so that the second rotation angle restriction pin 12 b is inserted into the rotation angle restriction groove 11. In this case, the movement of the second rotation angle restriction pin 12b is restricted in the rotation angle restriction groove 11, and the lock plate 3 is engaged with the back side of the box B by rotating the handle 2. Alternatively, the door A can be locked or unlocked in an unengaged state. In this manner, the locking plate 3 is reversed upside down and the direction in which the locking plate 3 protrudes from the main body case 1 is reversed by approximately 180 degrees, so that either the right opening door or the left opening door can be removed. Can be worn.
[0021]
When the handle 2 is rotated from the state in which the handle 2 shown in FIG. 2 (or FIG. 5) is projected by the protective cap 8 to the position shown in FIG. 3 (or FIG. 6), the guide 13 of the protective cap 8 The locking plate 3 is smoothly engaged with the opening edge 15, and the elastic portion 14 is brought into contact with the opening edge 15 of the box B to prevent the door A from rattling.
[0022]
The rotation angle restricting pin 12 may be formed integrally with the locking plate 3, and may be formed integrally with the locking plate 3, or may be attached to the locking plate 3 by welding or adhesion. Further, the locking plate 3 may be screwed by a screwing means or the like.
[0023]
Thus, in the said door lock apparatus, it can be set as the door lock apparatus for right opening doors, or it can be set as the door lock apparatus for left opening doors, without changing the rotation angle control pin 12. FIG. . Moreover, it is possible to cope with either a right-opening door or a left-opening door only by providing one rotation angle regulating groove 11.
[0024]
Next, the second invention of the present application will be described. 9 to 15 relate to a door locking device according to an embodiment of the present invention, FIG. 9 is an exploded perspective view showing the embodiment, and FIG. 10 is a door locking device for a right opening door. Fig. 11 is a rear view showing the unlocked state, Fig. 11 is a diagram showing the locked state, Fig. 12 is a cross-sectional view taken along the line A-A shown in Fig. 11, and Fig. 13 is a door chain for a left opening door. It is a rear view which shows a locking device, Comprising: The figure which shows an unlocking state, FIG. 14 is the figure which shows the locking state, FIG. 15 is the BB sectional drawing shown in FIG.
[0025]
As shown in FIG. 9, the door locking device includes a main body case 1 attached to a door A (see FIG. 12 or 15) and a handle attached to the surface side of the main body case 1 so as to be rotatable. 2 and the locking plate 3 connected to the handle 2 on the back side of the main body case 1 are the same, but on the back side of the main body case 1 there are two rotation angle regulating grooves 11a and 11b. Is provided, and the only difference is that the relative positions of the first rotation angle regulating pin 12a and the second rotation angle regulating pin 12b provided on the locking plate 3 are different.
[0026]
The first rotation angle restriction groove 11 a and the second rotation angle restriction groove 11 b are provided at a position rotated 180 degrees around the through hole 4 on the back surface side of the main body case 1. One surface of the locking plate 3 is inserted into one of the rotation angle restriction grooves (first rotation angle restriction groove 11a) and locked between the first rotation angle restriction groove 11a. A first rotation angle regulating pin 12 a that regulates the rotation angle of the plate 3 is provided integrally with the locking plate 3. The first rotation angle restriction pin 12a and the first rotation angle restriction groove 11a are provided, for example, for a right-open door, and as shown in FIG. 10 and FIG. 11, between the unlocked state and the locked state. Thus, the rotation angle of the locking plate 3 is restricted to approximately 90 degrees.
[0027]
The locking plate 3 is also inserted into the remaining rotation angle restriction groove (second rotation angle restriction groove 11b) on the remaining surface of the lock plate 3 and between the second rotation angle restriction groove 11b. A second rotation angle restricting pin 12b for restricting the rotation angle is provided integrally with the lock plate 3. The first rotation angle regulating pin 12a is for a right opening door, whereas the second rotation angle regulating pin 12b is provided for a left opening door as shown in FIGS. The rotation angle of the locking plate 3 is restricted to approximately 90 degrees between the locked state and the locked state.
[0028]
More specifically, the first rotation angle restriction pin 12a and the second rotation angle restriction pin 12b are provided at substantially the same position on the front and back sides of the lock plate 3, and the lock plate 3 is turned upside down. When the direction in which the locking plate 3 protrudes from the main body case 1 is reversed by approximately 180 degrees, the first rotation angle restriction pin 12a (or the second rotation angle restriction) provided on one surface of the locking plate 3 is reversed. The pin 12b) can be inserted into the first rotation angle restriction groove 11a (or the second rotation angle restriction groove 11b) on the back surface of the main body case 1. The first rotation angle restriction pin 12a and the second rotation angle restriction pin 12b may be provided integrally with the locking plate 3 as described above, and one shaft rod is inserted into the locking plate 3. It can also be provided.
[0029]
Thus, in this door locking device, as shown in FIGS. 9, 10, 11, and 12, the locking plate is inserted so that the first rotation angle restriction pin 12a is inserted into the first rotation angle restriction groove 11a. 3 is attached, the movement of the first rotation angle regulating pin 12a is restricted in the groove, and the locking plate 3 is engaged with the opening edge 15 of the box B by rotating the handle 2. The door A can be locked or unlocked in a combined or non-engaged state. Further, as shown in FIGS. 13, 14, and 15, the lock plate 3 is reversed so that the second rotation angle restriction pin 12 b is inserted into the rotation angle restriction groove 11. In this case, the movement of the second rotation angle restricting pin 12b is limited in the groove, and the lock plate 3 is engaged or disengaged with the opening edge 15 of the box B by rotating the handle 2. The door A can be locked or unlocked in a combined state. Thus, by reversing the lock plate 3 upside down and reversing the direction in which the lock plate 3 protrudes from the main body case 1 by approximately 180 degrees, either the right opening door or the left opening door can be used. It can be attached.
[0030]
In this door lock device, it is possible to cope with either the right opening door or the left opening door without changing the rotation angle regulating pins 12a and 12b.
[0031]
Next, the third invention of the present application will be described. 16 to 22 relate to a door locking device according to an embodiment of the present invention. FIG. 16 is an exploded perspective view showing the embodiment, and FIG. 17 is a door locking device for a right opening door. FIG. 18 is a rear view showing the unlocked state, FIG. 18 is a diagram showing the locked state, FIG. 19 is a cross-sectional view taken along line AA shown in FIG. 18, and FIG. It is a rear view which shows a locking device, The figure which shows an unlocked state, FIG. 21 is the figure which shows the locked state, FIG. 22 is the BB sectional drawing shown in FIG.
[0032]
As shown in FIG. 16, the door locking device includes a main body case 1 attached to a door A (see FIG. 19 or 22) and a handle 2 attached to the surface side of the main body case 1 so as to be rotatable. And the locking plate 3 connected to the handle 2 on the back side of the main body case 1 are the same, but one rotation angle regulating pin 12 is provided on the back side of the main body case 1 and the chain The difference is that two rotation angle restriction grooves 11 a and 11 b for inserting the rotation angle restriction pins 12 are provided in the lock plate 3.
[0033]
A first rotation angle restriction groove 11 a and a second rotation angle restriction pin 11 are inserted into the lock plate 3 to restrict the rotation angle of the lock plate 3 between the rotation angle restriction pin 12 and the rotation angle restriction pin 12. The rotation angle restricting groove 11b is provided. The first rotation angle regulating groove 11a is provided for a right opening door, and as shown in FIGS. 17 and 18, the rotation angle of the locking plate 3 is changed between the unlocked state and the locked state. It is regulated to approximately 90 degrees. The lock plate 3 is provided with a second rotation angle restriction groove 11b for inserting the rotation angle restriction pin 12 and restricting the rotation angle of the lock plate 3 with the rotation angle restriction pin 12. It has been. The first rotation angle restricting groove 11a is for the right opening door, whereas the second rotation angle restricting groove 11b is provided for the left opening door as shown in FIGS. The rotation angle of the locking plate 3 is restricted to approximately 90 degrees between the locked state and the locked state.
[0034]
Specifically, the second rotation angle restricting groove 11b is provided at a position rotated 180 degrees around the through hole 4 with respect to the first rotation angle restricting groove 11a, and the locking plate 3 is turned upside down. Thus, when the direction in which the locking plate 3 protrudes from the main body case 1 is reversed by approximately 180 degrees, the rotation angle regulating pin 12 on the back surface of the main body case 1 can be inserted.
[0035]
Therefore, in this door locking device, as shown in FIGS. 16, 17, 18, and 19, the locking plate 3 is removed so that the rotation angle restriction pin 12 is inserted into the first rotation angle restriction groove 11a. When worn, the movement of the rotation angle restriction pin 12 is restricted in the first rotation angle restriction groove 11a, and the lock plate 3 is moved to the opening edge 15 of the box B by rotating the handle 2. The door A can be locked or unlocked in an engaged or non-engaged state. 20, 21, and 22, the locking plate 3 is attached so that the locking plate 3 is reversed and the rotation angle restriction pin 12 is inserted into the second rotation angle restriction groove 11 b. In this case, the movement of the rotation angle restriction pin 12 is restricted in the second rotation angle restriction groove 11b, and the lock plate 3 is engaged with the opening edge 15 of the box B by rotating the handle 2. Alternatively, the door A can be locked or unlocked in an unengaged state. In this way, the locking plate 3 is reversed, and the direction in which the locking plate 3 protrudes from the main body case 1 is reversed by approximately 180 degrees, so that either the right opening door or the left opening door can be removed. You can wear it.
[0036]
As described above, this door locking device can also cope with either the right opening door or the left opening door without changing the rotation angle regulating pin 12.
[0037]
【The invention's effect】
In any of the door lock devices according to the present invention, the rotation angle regulating pin is provided integrally with the lock plate, and the lock plate is reversed so that the direction in which the lock plate protrudes from the main body case is reversed. In this case, a rotation angle restriction pin provided in the locking plate or the main body case is inserted into a rotation angle restriction groove provided in the main body case or the locking plate. As a result, by turning the lock plate upside down and changing the attaching direction of the lock plate, it is possible to deal with either the right opening door or the left opening door without changing the rotation angle regulating pin.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a door lock device according to an embodiment of the first invention of the present application.
FIG. 2 is a rear view showing the door locking device for a right-opening door as described above, and is a view showing an unlocked state.
FIG. 3 is a rear view showing the door locking device for a right-opening door as described above, and is a view showing a locked state.
4 is a cross-sectional view taken along line AA shown in FIG.
FIG. 5 is a rear view showing the door locking device for the left opening door according to the embodiment, and showing the unlocked state.
FIG. 6 is a rear view showing the door locking device for the left opening door according to the above, and is a view showing a locked state.
7 is a cross-sectional view taken along line AA shown in FIG.
8A and 8B are diagrams showing a protective cap attached to the locking plate, wherein FIG. 8A is a left side view thereof, FIG. 8B is a front view thereof, and FIG. 8C is a right side view thereof. FIG. 4D is a top view thereof.
FIG. 9 is an exploded perspective view of a door lock device according to an embodiment of the second invention of the present application.
FIG. 10 is a rear view showing the door locking device for the right-opening door according to the above, and shows the unlocked state.
FIG. 11 is a rear view showing the door locking device for a right-opening door according to the above, and shows a locked state.
12 is a cross-sectional view taken along line AA shown in FIG.
FIG. 13 is a rear view showing the door locking device for the left opening door according to the embodiment, and showing the unlocked state.
FIG. 14 is a rear view showing the door locking device for the left opening door according to the embodiment, and showing a locked state.
15 is a cross-sectional view taken along line BB shown in FIG.
FIG. 16 is an exploded perspective view of a door lock device according to an embodiment of the third invention of the present application.
FIG. 17 is a rear view showing the door locking device for the right-opening door according to the above, and shows the unlocked state.
FIG. 18 is a rear view showing the door locking device for a right-opening door according to the above, and shows a locked state.
FIG. 19 is a cross-sectional view taken along line AA shown in FIG.
FIG. 20 is a rear view showing the door locking device for the left opening door according to the embodiment, and showing the unlocked state.
FIG. 21 is a rear view showing the door locking device for the left opening door according to the embodiment, and showing a locked state.
22 is a cross-sectional view taken along line BB shown in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body case 2 Handle 3 Locking plate 4 Through-hole 5 Connecting shaft 8 Protective cap 11, 11a, 11b Rotation angle regulation groove 12, 12a, 12b Rotation angle regulation pin 13 Guide part 14 Elastic part 15 Opening edge part A Door B Box body

Claims

A main body case attached to the door with a through hole; a connecting shaft that penetrates the through hole of the main body case from the surface side; and a rotatable handle about the axis of the connecting shaft; and the main body case The back side of the door is connected to a connecting shaft penetrating from the through hole, and is engaged or disengaged with the opening edge of the box disposed on the side surface of the door within a predetermined rotation range of the handle. And a locking plate that is unlocked or unlocked, a rotation angle restriction groove formed on the back surface of the main body case, and a rotation angle restriction pin that is inserted into the rotation angle restriction groove and provided in the lock plate, In the door lock device in which the rotation range of the lock plate is limited,
A first rotation angle restriction pin is provided on one surface of the lock plate integrally with the lock plate, and a rotation angle restriction groove into which the first rotation angle restriction pin is inserted is provided. The second rotation angle restriction pin inserted into the rotation angle restriction groove is attached to the other surface of the lock plate when the lock plate is reversed so that the direction in which the lock plate protrudes from the main body case is reversed. A door locking device characterized by being provided integrally with a locking plate.

A main body case attached to the door with a through hole; a connecting shaft that penetrates the through hole of the main body case from the surface side; and a rotatable handle about the axis of the connecting shaft; and the main body case The back side of the door is connected to a connecting shaft penetrating from the through hole, and is engaged or disengaged with the opening edge of the box disposed on the side surface of the door within a predetermined rotation range of the handle. And a locking plate that is unlocked or unlocked, a rotation angle restriction groove formed on the back surface of the main body case, and a rotation angle restriction pin that is inserted into the rotation angle restriction groove and provided in the lock plate, In the door lock device in which the rotation range of the lock plate is limited,
A first rotation angle restricting pin is provided on one surface of the locking plate and a second rotation angle restricting pin is provided integrally with the locking plate on the other surface, and the first rotation angle restricting pin is provided. When the first rotation angle restricting groove into which the pin is inserted and the lock plate is reversed so that the direction in which the lock plate protrudes from the main body case is reversed, the second rotation angle restricting pin is A door lock device comprising a second rotation angle regulating groove to be inserted.

A main body case attached to the door with a through hole; a connecting shaft that penetrates the through hole of the main body case from the surface side; and a rotatable handle about the axis of the connecting shaft; and the main body case The back side of the door is connected to a connecting shaft penetrating from the through hole, and is engaged or disengaged with the opening edge of the box disposed on the side surface of the door within a predetermined rotation range of the handle. A locking plate for locking or unlocking, a rotation angle restriction groove formed in the lock plate, and a rotation angle restriction pin inserted in the rotation angle restriction groove and provided on the back surface of the main body case, In the door lock device in which the rotation range of the lock plate is limited,
When the first rotation angle restriction groove into which the rotation angle restriction pin is inserted into the lock plate and the direction in which the lock plate protrudes from the main body case is reversed by inverting the lock plate. A door locking device comprising a second rotation angle restriction groove into which the rotation angle restriction pin is inserted.

A protective cap is provided at the front end of the locking plate, a guide portion that makes it easy to lock the locking plate to the opening edge of the box on both sides of the protective cap, and an elastic portion that contacts the opening edge. The door lock device according to claim 1, 2, or 3.