JP3904209B2

JP3904209B2 - Lock handle device for drawer rotation operation type door

Info

Publication number: JP3904209B2
Application number: JP2003043346A
Authority: JP
Inventors: 篤朗杉村
Original assignee: Takigen Manufacturing Co Ltd
Current assignee: Takigen Manufacturing Co Ltd
Priority date: 2003-02-20
Filing date: 2003-02-20
Publication date: 2007-04-11
Anticipated expiration: 2023-02-20
Also published as: CN1523185A; JP2004251030A; TWI232260B; TW200416336A; KR20040075674A; KR100528846B1; CN100535371C

Description

【０００１】
【発明の属する技術分野】
本発明は、各種機器類の収納ボックスなどの扉の施錠と開閉操作に使用される引き出し回転操作型の扉用ロックハンドル装置に関するものである。
【０００２】
【従来の技術】
扉に固着される固定ケースの端部背面側に軸受筒部を突設し、軸受筒部に主軸を回転可能かつ前後方向に移動不能に嵌め入れ、主軸の後端部に固定枠体側の受金部に係脱する錠止板を連結し、主軸の前端部に接合ボス部を突設し、扉と平行な横断枢軸によって接合ボス部に操作ハンドルの基端部を枢着して、操作ハンドルを固定ケースに引き出し回転可能に収納した引き出し回転操作型の扉用ロックハンドル装置は、既に知られている（例えば特許文献１参照）。
【０００３】
この従来装置では、操作ハンドルを固定ケースに没入した状態、操作ハンドルを固定ケースから引き出した状態、操作ハンドルを解錠位置へ回転させた状態に保持するために、中央透孔にてバネ受け板を接合ボス部に相対回転不能に嵌め合わせ、バネ受け板の背面側に設けた空洞部にバネ受け板を前方に移動付勢する圧縮コイルバネを収容し、バネ受け板の前面側に形成した十文字状のクリック用凸部と操作ハンドルの基端部背面側に形成したＴ字状凹部を操作ハンドルの占める位置に応じて係脱させている。
【０００４】
しかしながら、このような保持機構では、圧縮コイルバネとバネ受け板は必須不可欠の構成部品であり、いずれを省略することも許されない。また、軸受筒部内には比較的板厚の厚いバネ受け板と一定の長さ寸法を有する圧縮コイルバネが収容される空洞部を確保しなければならないため、軸受筒部の奥行き寸法がそれだけ長くなってしまい、コンパクトな設計の障害となっている。
【０００５】
操作ハンドルの握り部に操作ハンドルを固定ケースに対して錠止する錠前ユニットを格納し、錠前ユニットの施錠軸に連動装備したラッチ体を固定ケースの内面に形成した受溝に係脱することによって、操作ハンドルが正当権限を有しない者によって無断で引出し回転操作されないようにした引き出し回転操作型扉用ロックハンドル装置も既に知られている（例えば特許文献２参照）。
【０００６】
しかしながら、この扉用ロックハンドル装置を屋外で使用する場合には、錠前ユニットの鍵孔を通って雨水や砂塵粒子が固定ケース内部に侵入して、可動部品間に目詰まりしたり、部品同士の遊隙内部で固結現象を起したりして各部品の作動不良を招くことがあった。また、雨水が錠前ユニット内に滞留するときには、酸化腐食に危険にも曝されている。雨水や砂塵粒子の侵入は主軸と軸受筒部の遊隙からも行われている。海岸近くの施設に使用される場合には、錠前ユニットのラッチ体が錆付いて動かなくなったり、主軸と軸受筒部間のブッシュが腐蝕して主軸が回らなくなる等の事例も報告されている。
【０００７】
【特許文献１】
特許第２５０４７１４号公報
【特許文献２】
特許第２９６９１１８号公報
【０００８】
【発明が解決しようとする課題】
したがって本発明の目的は、操作ハンドルを所定位置に保持する機構の部品点数を極限まで省略することができ、軸受筒部の短縮によってコンパクトな設計が可能となる、引き出し回転操作型の扉用ロックハンドル装置を提供することである。
本発明の他の目的は、雨水や砂塵粒子の侵入に対して的確に防護され、海岸近くの施設に使用されても耐久性が高い引き出し回転操作型の扉用ロックハンドル装置を提供することである。
【０００９】
【課題を解決するための手段】
以下、添付図面中の参照符号を用いて説明すると、請求項１の発明の引き出し回転操作型扉用ロックハンドル装置では、扉８に固着される固定ケース１の端部背面側に軸受筒部２を突設し、軸受筒部２に主軸３を回転可能かつ前後方向に移動不能に嵌め入れ装着し、主軸３の後端部に固定枠体４側の受金部５に係脱する錠止板６を連結し、主軸３の前端面中央部に接合ボス部７を突設し、前記接合ボス部７にその左右側面を貫通して扉８と平行な軸孔５１を形成し、操作ハンドル１０の基端部の背面に前面側に向かって凹み形成された凹部を設け、左右壁板部の中心部に軸受孔５０を横断方向に形成してある弾性支点部材１１を操作ハンドル１０の前記凹部内に嵌め合わせ、弾性支点部材１１の前記左右壁板部の間に形成された中央溝部１２内に接合ボス部７を嵌め合わせ、操作ハンドル１０の前記凹部の左右壁部を通り、弾性支点部材１１の軸受孔５０と接合ボス部７の軸孔５１を通る横断枢軸９によって、弾性支点部材１１を操作ハンドル１０の前記基端部に固定するとともに、接合ボス部７に操作ハンドル１０の前記基端部を枢着し、弾性支点部材１１の前記左右側壁板部の背面側に形成された鈍角断面の係止突起１４の頂点部１４ａを、接合ボス部７の左右両側に形成された主軸３の前端座面１３に当接させ、握り部１５を含めた操作ハンドル１０の主体部分が固定ケース１内に収納されているとき、係止突起１４の頂点部１４ａが、横断枢軸９を通る扉面と直角な基準直線３２に関して操作ハンドル１０の握り部１５の反対側に位置する一方、操作ハンドル１０が固定ケース１から引き出されたとき、係止突起１４の頂点部１４ａが基準直線３２を反対側に越えた位置に来るように係止突起１４を形成し、弾性変形する係止突起１４によって操作ハンドル１０を収納位置または引出し位置に保持する。
【００１０】
請求項２の発明の扉用ロックハンドル装置では、請求項１の発明の前記構成に加えて、
操作ハンドル１０の握り部１５に操作ハンドル１０を固定ケース１に対して錠止する錠前ユニット１６の格納部１７を形成し、格納部１７の前面側に錠前ユニット１６の前面部を取り囲むリング状隆起部１８を形成し、握り部１５に沿って配置される弾性キャップ板１９の中間部背面側に、リング状隆起部１８に嵌め合わされるリング状突起部２０を形成し、弾性キャップ板１９の上端部背面側に、操作ハンドル１０の中間部の横長スロット２１に嵌め込まれる断面矩形の取付け脚板部２２を突出形成し、取付け脚板部２２の先端側面に横長スロット２１の背面側縁面に係合する抜け止めフック部２３を形成し、弾性キャップ板１９の下端部背面側に、操作ハンドル１０の下端部の受孔２４に嵌め込まれる引留め脚板部２５を突出形成し、引留め脚板部２５の側面に受孔２４の背面側縁面に係合するフック部２６を形成する。
【００１１】
請求項３の発明の扉用ロックハンドル装置では、請求項１または請求項２の発明の前記構成に加えて、錠前ユニット１６の格納部１７の下側壁部に内外に貫通した排出孔２７を形成し、操作ハンドル１０の下端部背面側に排出孔２７に連通する排出溝２８を形成する。
【００１２】
請求項４の発明の扉用ロックハンドル装置では、請求項１ないし請求項３のいずれかの発明の前記構成に加えて、固定ケース１の背面側に閉曲線を描く環状リブ２９を扉８の取付孔３０の外側位置に配置されるように連続させて形成し、固定ケース１と扉８の間に挿入したパッキング部材３１を環状リブ２９によって突き押す。
【００１３】
請求項５の発明の扉用ロックハンドル装置では、請求項１ないし請求項４のいずれかの発明の前記構成に加えて、主軸３の外周面に環状溝３２を複数個形成し、環状溝３２嵌め入れたＯ−リング３３を軸受筒部２の内周面に密着させる。
【００１４】
請求項６の発明の扉用ロックハンドル装置では、請求項１ないし請求項５のいずれかの発明の前記構成に加えて、主軸３の外周面段差部３４と軸受筒部２の内周面段差部３５の間に樹脂製ブッシュ３６を挿入し、固定ケース１の内面受溝３７に錠前ユニット１６の樹脂製ラッチ体３８を係脱させる。
【００１５】
【発明の作用】
このように構成されている請求項１の発明の扉用ロックハンドル装置では、操作ハンドル１０の主体部分が固定ケース１内に収納されているときには、弾性支点部材１１の係止突起１４の頂点部１４ａは、横断枢軸９を通る扉面と直角な基準直線３２に関して操作ハンドル１０の握り部１５の反対側に位置している。そのため、弾性支点部材１１の弾性反発力による操作ハンドル１０に対する回転モーメントは、横断枢軸９を中心として図７において反時計回り方向に働いており、操作ハンドル１０の握り部１５を固定ケース１の内底面に押し付けるように作用している。
これによって、操作ハンドル１０は固定ケース１内に収納された状態に保持される。
【００１６】
所定の操作によって操作ハンドル１０が固定ケース１から引き出される途中において前記係止突起１４の頂点部１４ａが前記基準直線３２を固定ケース１の握り部１５の収納部分側に越えたとき、弾性支点部材１１の弾性反発力による回転モーメントの作用方向が時計回り方向へと逆転し、操作ハンドル１０が所定角度まで固定ケース１から突出した段階では、係止突起１４の握り部１５とは反対側の斜面部１４ｂが主軸３の前端座面１３に当接する。これによって操作ハンドル１０は引出し状態に保持される。
【００１７】
固定ケース１の前方空間に斜めに引出された操作ハンドル１０を握り、軸受筒部２に支持されている主軸３を中心に回転させると、錠止板６が固定枠体４側の受金部５から離脱し、固定枠体４に対する扉８の錠止が解除され、扉８は操作ハンドル１０を手前に引くことによって開放される。
このように操作ハンドル１０が解錠位置へと回転するとき、係止突起１４の前記斜面部１４ｂは主軸３の前端座面１３に摺接しており、弾性支点部材１１の弾性反発力による回転モーメントは、操作ハンドル１０を引出し状態に保持させる方向に依然として作用している。
【００１８】
請求項２の発明の扉用ロックハンドル装置では、操作ハンドル１０には錠前ユニット１６が装着され、錠前ユニット１６の前面部を隠蔽する弾性キャップ板１９が操作ハンドル１０の握り部１５に取り付けられている。
鍵４０を錠前ユニット１６の施錠軸４１の鍵孔３９に挿入するには、引留め脚板部２５を操作ハンドル１０の受孔２４から引き抜き、図３に示したように弾性キャップ板１９を取付け脚板部２２を中心として真上方向に引き上げる。
この引き上げ操作の過程で弾性キャップ板１９側のリング状突起部２０が操作ハンドル１０側のリング状隆起部１８から外され、鍵孔３９が現われる。
鍵４０を挿入して錠前ユニット１６の施錠軸４１を所定方向に回すと、ラッチ体３８がロック溝３７から引出され、固定ケース１に対する操作ハンドル１０の錠止が解かれる。以降の操作は請求項１の発明と同じである。
【００１９】
【発明の実施の形態】
図示の実施例では、主軸３は中間部の外周面段差部３４が軸受筒部２の内周面段差部３５に当ることによって固定ケース１の背面方向への移動を阻止される一方、主軸３の後端角軸部に嵌めた回転角度規制盤４８が軸受筒部２の背面に当接することによって、固定ケース１の前面方向への移動を阻止されている。外周面段差部３４と内周面段差部３５の間には樹脂製の鍔付きブッシュが挿入されている。回転角度規制盤４８と錠止板６は中央部の角孔にて後端角軸部に相対回転不能に嵌められ、ボルト４７によって主軸３に固定されている。主軸３の接合ボス部７は断面角形に形成され、その左右側面を貫通して軸孔５１が形成されている。樹脂製の弾性支点部材１１には、中央溝部１２を挟む左右側壁板部に係止突起１４が一対に張り出し形成されている。前記左右側壁板部には横断枢軸９が嵌挿される軸受孔５０を中心部に形成してある。
【００２０】
主軸３の中間部外周面には前後２個の環状受溝３２が平行に形成されており、これら環状受溝３２には防水用Ｏ−リング３３を嵌め入れてある。
操作ハンドル１０の握り部１５の先端部には錠前ユニット１６の格納部１７が背面側に突出形成されている。所定の鍵４０によって錠前ユニット１６の施錠軸４１を回したとき、該施錠軸４１に連動装備した樹脂製のラッチ体３８が固定ケース１側のロック溝３７に係合することによって、操作ハンドル１０を収納位置に錠止するようになっている。施錠軸４１の内端面には偏心カム突起４３が形成され、偏心カム突起４３はラッチ体３７の基端部の受動スロット４３に挿入されている。操作ハンドル１０の軸孔５１は横断方向に貫通して形成されている。
【００２１】
固定ケース１は縦長となるように配置され、固定ケース１の背面側から当て付けられる取付用座金板４５とビス４６によって扉８に締付け固着されている。
錠前ユニット１６の格納部１７の下側壁部に形成された排出孔２７は前後方向に長いスロット状のものである。操作ハンドル１０の下端部背面側に形成された排出溝２８は、操作ハンドル１０の下端面まで貫通しており、その上部は排出孔２７に連通している。排出溝２４には弾性キャップ板１９の引留め脚板部２５が入り込んでいる。
固定ケース１の背面側に形成された環状リブ２９は、固定ケース１を扉８に取り付けたとき、扉８の取付孔３０の外側位置に来るように配置されている。
弾性支点部材１１は錆付きや腐蝕に対する耐久性を考慮して樹脂で作成するのが望ましい。
【００２２】
【発明の効果】
以上のように本発明の引き出し回転操作型扉用ロックハンドル装置では、操作ハンドル１０を収納位置あるいは引出し位置に保持する機構は弾性支点部材１１のみによって構成され、構成部品数は極限まで減少しているので、製造コストの節減が可能である。
また、従来装置のように圧縮コイルバネの収容用空洞部を軸受筒部内に確保する必要が無く、弾性支点部材１１は操作ハンドル１０の基端部の前記凹部内に一体的に嵌合固定されているので、軸受筒部を短縮化することができ、コンパクトな設計が可能となる。
【００２３】
請求項２の発明では、操作ハンドル１０に錠前ユニット１６の前面部を取り囲むリング状隆起部１８を形成し、弾性キャップ板１９の中間部背面側にリング状隆起部１８に嵌められるリング状突起部２０を形成し、弾性キャップ板１９の上端部背面側に操作ハンドル１０の横長スロット２１に嵌め込まれる取付け脚板部２２を形成し、弾性キャップ板１９の下端部背面側に操作ハンドル１０の受孔２４に嵌め込まれる引留め脚板部２５を形成したので、弾性キャップ板１９は錠前ユニット１６の前面部を隠蔽した位置に的確に装着保持される。
そのため、錠前ユニット１６の鍵孔３９や施錠軸外面と格納部内面間の遊隙などに対する雨水や砂塵粒子の侵入は確実に抑止され、各可動部品は固結現象を起したり錆付くことなく安定に作動する。
【００２４】
また、弾性キャップ板１９の取付け脚板部２２は断面矩形に形成されており、この取付け脚板部２２が操作ハンドル１０の横長スロット２１に嵌められているため、弾性キャップ板１９は操作ハンドル１０の前面に沿って取付け脚板部２２を中心に回転することはできない。弾性キャップ板１９は取付け脚板部２２で折り返すようにして真上方向に引き上げられるだけであるから、弾性キャップ板１９から指を離したときには、弾性キャップ板１９はその自重及び弾性反発力によって、直ちに垂直に垂れた位置に復帰し、錠前ユニット１６の前面部を隠蔽することになる。そのため、即座にリング状隆起部１８にリング状突起部２０を嵌めなくても、一定の防水・防塵効果が期待される。
【００２５】
請求項３の発明では、格納部１７の下側壁部に排出孔２７を形成し、操作ハンドル１０の下端部背面側に排出溝２８を形成してあるため、仮に弾性キャップ板１９を外している間に雨水等が侵入しても、排出孔２７と排出溝２８を経由して外部に直ちに排除されるため、機構部品の腐蝕の原因となることがない。
【００２６】
請求項４の発明では、固定ケース１の背面側に環状リブ２９を連続させて形成し、固定ケース１と扉８の間に挿入したパッキング部材３１を環状リブ２９で突押したとき、パッキング部材３１の被突押し部が前記取付孔３０を取り囲んで閉曲線を描くようになっているため、取付孔３０を経由した雨水等の侵入が的確に抑止される。
【００２７】
請求項５の発明では、主軸３の外周面に環状溝３２を複数個形成し、環状溝３２嵌め入れたＯ−リング３３を軸受筒部２の内周面に密着させたので、主軸３廻りからの雨水等の侵入がより確実に抑止される。
請求項６の発明では、主軸３の外周面段差部３４と軸受筒部２の内周面段差部３５の間に樹脂製ブッシュ３６を挿入し、固定ケース１の内面受溝３７に錠前ユニット１６の樹脂製ラッチ体３８を係脱させたので、錆付きや腐蝕に対して強化されて円滑に作動し、海岸近くの施設などで使用しても充分な耐久性を有するものとなる。
【図面の簡単な説明】
【図１】本発明の一実施例に係る引き出し回転操作型扉用ロックハンドル装置の正面図であり、扉は施錠状態にある。
【図２】図１の扉用ロックハンドル装置の左側面図である。
【図３】図１の扉用ロックハンドル装置の作動状態を鎖線で示した左側面図である。
【図４】図１の扉用ロックハンドル装置の背面図である。
【図５】図１の扉用ロックハンドル装置の平面図である。
【図６】図１の扉用ロックハンドル装置の底面図である。
【図７】図１のＡ−Ａ線断面図である。
【図８】図１の扉用ロックハンドル装置の座金板を鎖線で示した背面図である。
【図９】図１の扉用ロックハンドル装置が取り付けられる扉の正面図である。
【図１０】図１の扉用ロックハンドル装置に使用した固定ケースの横断面図である。
【図１１】図１の扉用ロックハンドル装置に使用した弾性キャップ板の背面図である。
【図１２】図１１の弾性キャップ板の底面図である。
【図１３】図１１のＢ−Ｂ線断面図である。
【図１４】図１の扉用ロックハンドル装置に使用した操作ハンドルの縦断面図である。
【図１５】図１４の操作ハンドルの背面図である。
【図１６】図１の扉用ロックハンドル装置に使用した弾性支点部材の右側面図である。
【図１７】図１６の弾性支点部材の背面図である。
【図１８】図１の扉用ロックハンドル装置に使用した樹脂製ブッシュの背面図である。
【符号の説明】
１固定ケース
２軸受筒部
３主軸
４固定枠体
５受金部
６錠止板
７接合ボス部
８扉
９横断枢軸
１０操作ハンドル
１１弾性支点部材
１２中央溝部
１３主軸の前端座面
１４弾性支点部材の係止突起
１５握り部
１６錠前ユニット
１７格納部
１８リング状隆起部
１９弾性キャップ板
２０リング状突起部
２１横長スロット
２２取付け脚板部
２３抜け止めフック部
２４受孔
２５引留め脚板部
２６フック部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a drawer rotation operation type door lock handle device used for locking and opening / closing doors of storage boxes of various devices.
[0002]
[Prior art]
A bearing cylinder is projected on the back side of the end of the fixed case fixed to the door, and the spindle is fitted in the bearing cylinder so as to be rotatable and immovable in the front-rear direction. A lock plate that engages and disengages from the metal part, a joint boss part projects from the front end part of the main shaft, and the base end part of the operation handle is pivotally attached to the joint boss part by a transverse pivot parallel to the door. A drawer rotation operation type door lock handle device in which a handle is housed in a fixed case so as to be pulled out and rotated is already known (see, for example, Patent Document 1).
[0003]
In this conventional apparatus, in order to hold the operation handle immersed in the fixed case, the operation handle pulled out from the fixed case, and the operation handle rotated to the unlocked position, a spring receiving plate is provided at the central through hole. Is formed on the front side of the spring receiving plate by fitting a compression coil spring that fits the joint boss portion in a non-rotatable manner and accommodates a compression coil spring that urges the spring receiving plate to move forward in a cavity provided on the back side of the spring receiving plate. The click-shaped convex portion and the T-shaped concave portion formed on the back side of the base end portion of the operation handle are engaged and disengaged according to the position occupied by the operation handle.
[0004]
However, in such a holding mechanism, the compression coil spring and the spring receiving plate are indispensable components, and neither of them can be omitted. In addition, since a hollow portion that accommodates a relatively thick spring receiving plate and a compression coil spring having a certain length must be secured in the bearing tube, the depth of the bearing tube is increased accordingly. This is an obstacle to compact design.
[0005]
By storing the lock unit that locks the operation handle against the fixed case in the grip part of the operation handle, and by engaging and disengaging the latch body interlocking with the lock shaft of the lock unit in the receiving groove formed on the inner surface of the fixed case A drawer rotation operation type door lock handle device is also known in which the operation handle is not pulled out and rotated without permission by a person who does not have the proper authority (see, for example, Patent Document 2).
[0006]
However, when this door lock handle device is used outdoors, rainwater and dust particles enter the inside of the fixed case through the keyhole of the lock unit, clogging between moving parts, In some cases, a caking phenomenon occurs inside the play space, resulting in malfunction of each part. Also, when rainwater stays in the lock unit, it is also at risk for oxidative corrosion. Rain water and dust particles intrude through the play between the main shaft and the bearing cylinder. When used in a facility near the coast, cases have been reported in which the lock body of the lock unit rusts and does not move, or the bush between the main shaft and the bearing tube part corrodes and the main shaft does not rotate.
[0007]
[Patent Document 1]
Japanese Patent No. 2504714 [Patent Document 2]
Japanese Patent No. 2969118
[Problems to be solved by the invention]
Accordingly, an object of the present invention is to provide a drawer rotation operation type door lock that can omit the number of parts of the mechanism that holds the operation handle in a predetermined position to the maximum, and can be compactly designed by shortening the bearing tube portion. A handle device is provided.
Another object of the present invention is to provide a drawer rotation operation type door lock handle device that is accurately protected against intrusion of rainwater and dust particles and has high durability even when used in facilities near the coast. is there.
[0009]
[Means for Solving the Problems]
Hereinafter, a description will be given using reference numerals in the accompanying drawings. In the drawer rotation operation type door lock handle device according to the first aspect of the present invention, the bearing tube portion 2 is provided on the rear side of the end portion of the fixed case 1 fixed to the door 8. The main shaft 3 is fitted into the bearing tube portion 2 so as to be rotatable and immovable in the front-rear direction, and is attached to the rear end portion of the main shaft 3 to be engaged with and disengaged from the metal receiving portion 5 on the fixed frame body 4 side. The plate 6 is connected , a joint boss 7 is projected at the center of the front end surface of the main shaft 3, and a shaft hole 51 parallel to the door 8 is formed through the right and left side surfaces of the joint boss 7. 10 is provided with a recess formed in the back of the base end portion toward the front surface side, and the elastic fulcrum member 11 having a bearing hole 50 formed in the transverse direction at the center of the left and right wall plate portions is provided on the operation handle 10. A center groove 12 formed between the left and right wall plates of the elastic fulcrum member 11 by fitting in the recess. The elastic fulcrum member 11 is fitted by the transverse pivot 9 passing through the left and right walls of the recess of the operation handle 10 and passing through the bearing hole 50 of the elastic fulcrum member 11 and the shaft hole 51 of the bonding boss 7. Is fixed to the base end portion of the operation handle 10, the base end portion of the operation handle 10 is pivotally attached to the joint boss portion 7, and an obtuse angle formed on the back side of the left and right side wall plate portions of the elastic fulcrum member 11. The apex portion 14a of the locking projection 14 in the cross section is brought into contact with the front end seat surface 13 of the main shaft 3 formed on the left and right sides of the joint boss portion 7, and the main portion of the operation handle 10 including the grip portion 15 is a fixed case. 1, the apex portion 14 a of the locking projection 14 is located on the opposite side of the grip portion 15 of the operating handle 10 with respect to a reference straight line 32 perpendicular to the door surface passing through the transverse pivot 9, whereas the operating handle 10 is fixed When the locking projection 14 is pulled out from the screw 1, the locking projection 14 is formed so that the apex portion 14 a of the locking projection 14 extends beyond the reference straight line 32. Is held in the storage position or the drawer position.
[0010]
In the door lock handle device according to the invention of claim 2, in addition to the configuration of the invention of claim 1,
A storage portion 17 of a lock unit 16 that locks the operation handle 10 with respect to the fixed case 1 is formed in the grip portion 15 of the operation handle 10, and a ring-shaped ridge surrounding the front portion of the lock unit 16 on the front side of the storage portion 17. A ring-shaped protrusion 20 fitted to the ring-shaped raised portion 18 is formed on the back side of the intermediate portion of the elastic cap plate 19 disposed along the grip portion 15, and the upper end of the elastic cap plate 19 is formed. A mounting leg plate portion 22 having a rectangular cross-section to be fitted into the laterally long slot 21 in the middle portion of the operation handle 10 is formed on the rear surface side of the operation handle 10 so as to protrude and engage with the rear side edge surface of the laterally long slot 21 on the tip side surface of the mounting leg plate portion 22. A retaining hook portion 23 is formed, and a retaining leg plate portion 25 is formed on the back side of the lower end portion of the elastic cap plate 19 so as to be fitted into the receiving hole 24 at the lower end portion of the operation handle 10. The side surface of the fit leg plate portion 25 forming a hook 26 for engaging the rear side edge surface of the receiving hole 24.
[0011]
In the door lock handle device according to the invention of claim 3, in addition to the structure of the invention of claim 1 or claim 2, a discharge hole 27 penetrating inward and outward is formed in the lower side wall portion of the storage portion 17 of the lock unit 16. Then, a discharge groove 28 communicating with the discharge hole 27 is formed on the back side of the lower end of the operation handle 10.
[0012]
In the door lock handle device according to a fourth aspect of the present invention, in addition to the above-described structure according to any one of the first to third aspects, an annular rib 29 that draws a closed curve on the back side of the fixed case 1 is attached to the door 8. The packing member 31 formed continuously so as to be disposed outside the hole 30 and inserted between the fixed case 1 and the door 8 is pushed by the annular rib 29.
[0013]
In the door lock handle device according to the fifth aspect of the invention, in addition to the structure of any of the first to fourth aspects of the invention, a plurality of annular grooves 32 are formed on the outer peripheral surface of the main shaft 3. The inserted O-ring 33 is brought into close contact with the inner peripheral surface of the bearing tube portion 2.
[0014]
In the door lock handle device according to the sixth aspect of the present invention, in addition to the configuration of any one of the first to fifth aspects of the invention, the outer peripheral surface step portion 34 of the main shaft 3 and the inner peripheral surface step portion of the bearing tube portion 2 are provided. A resin bush 36 is inserted between the portions 35, and the resin latch body 38 of the lock unit 16 is engaged with and disengaged from the inner surface receiving groove 37 of the fixed case 1.
[0015]
[Effects of the Invention]
In the door lock handle device according to the first aspect of the present invention configured as above, when the main portion of the operation handle 10 is housed in the fixed case 1, the apex portion of the locking projection 14 of the elastic fulcrum member 11 is obtained. 14 a is located on the opposite side of the grip portion 15 of the operation handle 10 with respect to a reference straight line 32 perpendicular to the door surface passing through the transverse pivot axis 9. Therefore, the rotational moment with respect to the operation handle 10 due to the elastic repulsive force of the elastic fulcrum member 11 works counterclockwise in FIG. 7 about the transverse pivot 9, and the grip portion 15 of the operation handle 10 is moved inside the fixed case 1. It acts to press against the bottom.
As a result, the operation handle 10 is held in a state of being housed in the fixed case 1.
[0016]
When the operation handle 10 is pulled out from the fixed case 1 by a predetermined operation, when the apex portion 14a of the locking projection 14 exceeds the reference straight line 32 toward the storage portion side of the grip portion 15 of the fixed case 1, the elastic fulcrum member 11, when the operating handle 10 protrudes from the fixed case 1 up to a predetermined angle, the slope of the locking projection 14 opposite to the grip portion 15 is reversed. The portion 14b contacts the front end seating surface 13 of the main shaft 3. As a result, the operation handle 10 is held in the pulled out state.
[0017]
When the operation handle 10 pulled obliquely in the front space of the fixed case 1 is gripped and rotated about the main shaft 3 supported by the bearing tube portion 2, the lock plate 6 is received by the fixed frame 4 side. 5 is released, the lock of the door 8 with respect to the fixed frame 4 is released, and the door 8 is opened by pulling the operation handle 10 forward.
Thus, when the operation handle 10 rotates to the unlocked position, the inclined surface portion 14b of the locking projection 14 is in sliding contact with the front end seat surface 13 of the main shaft 3, and the rotational moment due to the elastic repulsive force of the elastic fulcrum member 11 Still acts in the direction of holding the operating handle 10 in the pulled out state.
[0018]
In the door lock handle device according to the second aspect of the present invention, the lock unit 16 is attached to the operation handle 10, and an elastic cap plate 19 that conceals the front surface of the lock unit 16 is attached to the grip portion 15 of the operation handle 10. Yes.
In order to insert the key 40 into the key hole 39 of the locking shaft 41 of the lock unit 16, the retaining leg plate portion 25 is pulled out from the receiving hole 24 of the operation handle 10, and the elastic cap plate 19 is attached to the mounting leg plate as shown in FIG. The part 22 is pulled upwards around the center.
During the pulling operation, the ring-shaped protrusion 20 on the elastic cap plate 19 side is removed from the ring-shaped protruding portion 18 on the operation handle 10 side, and the keyhole 39 appears.
When the key 40 is inserted and the lock shaft 41 of the lock unit 16 is rotated in a predetermined direction, the latch body 38 is pulled out from the lock groove 37, and the operation handle 10 is unlocked with respect to the fixed case 1. The subsequent operation is the same as that of the first aspect of the invention.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
In the illustrated embodiment, the main shaft 3 is prevented from moving in the back direction of the fixed case 1 when the outer peripheral surface step portion 34 of the intermediate portion hits the inner peripheral surface step portion 35 of the bearing tube portion 2. The rotation angle restricting plate 48 fitted to the rear end angle shaft portion abuts on the back surface of the bearing tube portion 2, thereby preventing the fixed case 1 from moving in the front surface direction. Between the outer peripheral surface stepped portion 34 and the inner peripheral surface stepped portion 35, a resin flanged bush is inserted. The rotation angle restricting plate 48 and the locking plate 6 are fitted to the rear end angular shaft portion through a central angular hole so as not to be relatively rotatable, and are fixed to the main shaft 3 by bolts 47. The joint boss portion 7 of the main shaft 3 is formed in a square cross section, and a shaft hole 51 is formed through the left and right side surfaces thereof. On the elastic fulcrum member 11 made of resin, a pair of locking projections 14 are formed on the left and right side wall plate portions sandwiching the central groove portion 12. A bearing hole 50 into which the transverse pivot shaft 9 is inserted is formed in the central portion of the left and right side wall plate portions.
[0020]
Two annular receiving grooves 32 are formed in parallel on the outer peripheral surface of the intermediate portion of the main shaft 3, and a waterproof O-ring 33 is fitted in these annular receiving grooves 32.
A storage portion 17 of the lock unit 16 is formed at the front end portion of the grip portion 15 of the operation handle 10 so as to protrude rearward. When the locking shaft 41 of the lock unit 16 is rotated by a predetermined key 40, the resin latch body 38 interlocked with the locking shaft 41 engages with the lock groove 37 on the fixed case 1 side, whereby the operation handle 10 Is locked in the storage position. An eccentric cam projection 43 is formed on the inner end surface of the locking shaft 41, and the eccentric cam projection 43 is inserted into the passive slot 43 at the base end portion of the latch body 37. The shaft hole 51 of the operation handle 10 is formed to penetrate in the transverse direction.
[0021]
The fixed case 1 is disposed so as to be vertically long, and is fixed to the door 8 by a mounting washer plate 45 and a screw 46 applied from the back side of the fixed case 1.
Discharge hole formed in the lower wall of the storage portion 17 of the lock unit 16 27 is of elongated slot-shaped in the longitudinal direction. A discharge groove 28 formed on the back side of the lower end portion of the operation handle 10 penetrates to the lower end surface of the operation handle 10, and an upper portion thereof communicates with the discharge hole 27. A retaining leg plate portion 25 of the elastic cap plate 19 enters the discharge groove 24.
The annular rib 29 formed on the back side of the fixed case 1 is disposed so as to come to an outer position of the mounting hole 30 of the door 8 when the fixed case 1 is attached to the door 8.
The elastic fulcrum member 11 is preferably made of a resin in consideration of durability against rust and corrosion.
[0022]
【The invention's effect】
As described above, in the drawer rotation operation type door lock handle device according to the present invention, the mechanism for holding the operation handle 10 in the storage position or the drawer position is constituted by only the elastic fulcrum member 11, and the number of components is reduced to the limit. Therefore, manufacturing costs can be reduced.
Further, unlike the conventional device, there is no need to secure a hollow portion for accommodating the compression coil spring in the bearing tube portion, and the elastic fulcrum member 11 is integrally fitted and fixed in the recess at the base end portion of the operation handle 10. Therefore, the bearing tube portion can be shortened and a compact design can be achieved.
[0023]
According to the second aspect of the present invention, the ring-shaped protruding portion 18 is formed on the operation handle 10 so as to form the ring-shaped protruding portion 18 surrounding the front surface portion of the lock unit 16 and is fitted to the ring-shaped protruding portion 18 on the back side of the intermediate portion of the elastic cap plate 19. 20, an attachment leg plate portion 22 fitted into the horizontally long slot 21 of the operation handle 10 is formed on the back surface side of the upper end portion of the elastic cap plate 19, and a receiving hole 24 of the operation handle 10 is formed on the back surface side of the lower end portion of the elastic cap plate 19. Since the retaining leg plate portion 25 to be fitted in is formed, the elastic cap plate 19 is accurately mounted and held at a position where the front surface portion of the lock unit 16 is concealed.
Therefore, the intrusion of rainwater and dust particles into the keyhole 39 of the lock unit 16 and the clearance between the outer surface of the lock shaft and the inner surface of the storage portion is reliably suppressed, and each movable part does not cause a caking phenomenon or rust. Operates stably.
[0024]
Further, the mounting leg plate portion 22 of the elastic cap plate 19 is formed in a rectangular shape in section, and the mounting leg plate portion 22 is fitted in the horizontally long slot 21 of the operation handle 10. It cannot be rotated around the attachment leg plate portion 22 along the axis. Since the elastic cap plate 19 is merely pulled up in the upward direction so as to be folded back by the mounting leg plate portion 22, when the finger is released from the elastic cap plate 19, the elastic cap plate 19 is immediately caused by its own weight and elastic repulsive force. It returns to the position where it drooped vertically, and the front part of the lock unit 16 is concealed. Therefore, even if the ring-shaped protrusion 20 is not immediately fitted into the ring-shaped protruding portion 18, a certain waterproof / dustproof effect is expected.
[0025]
According to the third aspect of the present invention, the discharge hole 27 is formed in the lower side wall portion of the storage portion 17 and the discharge groove 28 is formed on the back side of the lower end portion of the operation handle 10, so that the elastic cap plate 19 is temporarily removed. Even if rainwater or the like enters between them, it is immediately removed to the outside via the discharge hole 27 and the discharge groove 28, so that it does not cause corrosion of the mechanical parts.
[0026]
In the invention of claim 4, when the annular rib 29 is formed continuously on the back side of the fixed case 1 and the packing member 31 inserted between the fixed case 1 and the door 8 is pushed by the annular rib 29, the packing member Since the 31 pressed portions surround the mounting hole 30 and draw a closed curve, intrusion of rainwater or the like via the mounting hole 30 is accurately suppressed.
[0027]
In the fifth aspect of the present invention, a plurality of annular grooves 32 are formed on the outer peripheral surface of the main shaft 3, and the O-ring 33 fitted with the annular groove 32 is brought into close contact with the inner peripheral surface of the bearing tube portion 2. Invasion of rainwater, etc. from is more reliably prevented.
In the invention of claim 6, a resin bush 36 is inserted between the outer peripheral surface step portion 34 of the main shaft 3 and the inner peripheral surface step portion 35 of the bearing tube portion 2, and the lock unit 16 is inserted into the inner surface receiving groove 37 of the fixed case 1. Since the resin latch body 38 is engaged and disengaged, it is strengthened against rust and corrosion and operates smoothly, and has sufficient durability even when used in facilities near the coast.
[Brief description of the drawings]
FIG. 1 is a front view of a lock handle device for a drawer rotation operation type door according to an embodiment of the present invention, and the door is in a locked state.
FIG. 2 is a left side view of the door lock handle device of FIG. 1;
FIG. 3 is a left side view showing the operating state of the door lock handle device of FIG.
4 is a rear view of the door lock handle device of FIG. 1; FIG.
5 is a plan view of the door lock handle device of FIG. 1; FIG.
6 is a bottom view of the door lock handle device of FIG. 1; FIG.
7 is a cross-sectional view taken along line AA in FIG.
8 is a rear view of the washer plate of the door lock handle device of FIG.
FIG. 9 is a front view of a door to which the door lock handle device of FIG. 1 is attached.
10 is a cross-sectional view of a fixed case used in the door lock handle device of FIG. 1; FIG.
11 is a rear view of an elastic cap plate used in the door lock handle device of FIG. 1; FIG.
12 is a bottom view of the elastic cap plate of FIG. 11. FIG.
13 is a sectional view taken along line BB in FIG.
14 is a longitudinal sectional view of an operation handle used in the door lock handle device of FIG. 1; FIG.
FIG. 15 is a rear view of the operation handle of FIG. 14;
16 is a right side view of an elastic fulcrum member used in the door lock handle device of FIG. 1. FIG.
17 is a rear view of the elastic fulcrum member of FIG. 16. FIG.
18 is a rear view of a resin bush used in the door lock handle device of FIG. 1. FIG.
[Explanation of symbols]
1 Fixed case
2 Bearing cylinder
3 Spindle
4 Fixed frame
5 receiving part
6 Locking plate
7 Joint boss
8 doors
DESCRIPTION OF SYMBOLS 9 Transverse pivot 10 Operation handle 11 Elastic fulcrum member 12 Central groove part 13 Front end seat surface of main shaft 14 Locking protrusion of elastic fulcrum member 15 Grip part 16 Locking unit 17 Storage part 18 Ring-like protruding part 19 Elastic cap plate 20 Ring-like protrusion part 21 Horizontal slot 22 Mounting leg plate part 23 Retaining hook part 24 Receiving hole 25 Retaining leg board part 26 Hook part

Claims

A bearing tube portion 2 is provided on the rear side of the end of the fixed case 1 fixed to the door 8, and the main shaft 3 is fitted into the bearing tube portion 2 so as to be rotatable and immovable in the front-rear direction. connecting the locking plate 6 engages and disengages the socket member 5 of the stationary frame element 4 side end portion, projecting the joint boss 7 on the front end face a central portion of the main shaft 3, the left and right to the joint boss 7 A shaft hole 51 penetrating the side surface and parallel to the door 8 is formed, a recess formed in a recess toward the front side is provided on the back surface of the base end portion of the operation handle 10, and a bearing hole is formed in the center portion of the left and right wall plate portions. The elastic fulcrum member 11 formed in the transverse direction 50 is fitted in the concave portion of the operation handle 10, and the joint boss portion 7 is inserted into the central groove portion 12 formed between the left and right wall plate portions of the elastic fulcrum member 11. Are fitted to the bearing hole 50 of the elastic fulcrum member 11 through the left and right walls of the recess of the operation handle 10. The elastic fulcrum member 11 is fixed to the base end portion of the operation handle 10 by the transverse pivot 9 passing through the shaft hole 51 of the support portion 7, and the base end portion of the operation handle 10 is pivotally attached to the joint boss portion 7. The apex portions 14a of the engaging projections 14 having an obtuse cross section formed on the back side of the left and right side wall plate portions of the elastic fulcrum member 11 are brought into contact with the front end seating surfaces 13 of the main shaft 3 formed on the left and right sides of the joining boss portion 7. When the main portion of the operation handle 10 including the grip portion 15 is accommodated in the fixed case 1, the apex portion 14 a of the locking projection 14 has a reference straight line 32 perpendicular to the door surface passing through the transverse pivot 9. Is located on the opposite side of the grip portion 15 of the operation handle 10, and when the operation handle 10 is pulled out from the fixed case 1, the apex portion 14 a of the locking projection 14 comes to a position beyond the reference straight line 32. So that the locking projection 4 is formed, the drawer rotatively-operated door locking handle assembly which is adapted to hold the operating handle 10 at the storage position or the extended position by the locking projection 14 to be elastically deformed.

A storage portion 17 of a lock unit 16 that locks the operation handle 10 with respect to the fixed case 1 is formed in the grip portion 15 of the operation handle 10, and a ring-shaped ridge surrounding the front portion of the lock unit 16 on the front side of the storage portion 17. A ring-shaped protrusion 20 fitted to the ring-shaped raised portion 18 is formed on the back side of the intermediate portion of the elastic cap plate 19 disposed along the grip portion 15, and the upper end of the elastic cap plate 19 is formed. A mounting leg plate portion 22 having a rectangular cross-section to be fitted into the laterally long slot 21 in the middle portion of the operation handle 10 is formed on the rear surface side of the operation handle 10 so as to protrude and engage with the rear side edge surface of the laterally long slot 21 on the front end side surface of the mounting leg plate portion 22. A retaining hook portion 23 is formed, and a retaining leg plate portion 25 is formed on the back side of the lower end portion of the elastic cap plate 19 so as to be fitted into the receiving hole 24 at the lower end portion of the operation handle 10. Drawer rotatively-operated door lock handle device according to claim 1, characterized in that the formation of the hook portion 26 which engages with the rear edge surface of the receiving hole 24 on the side surface of the fit leg plate section 25.

A discharge hole 27 penetrating inward and outward is formed in the lower side wall portion of the storage portion 17 of the lock unit 16, and a discharge groove 28 communicating with the discharge hole 27 is formed on the back side of the lower end portion of the operation handle 10. The drawer rotation operation type door lock handle device according to claim 1 or 2.

An annular rib 29 that draws a closed curve on the back side of the fixed case 1 is continuously formed so as to be disposed outside the mounting hole 30 of the door 8, and a packing member 31 inserted between the fixed case 1 and the door 8 is formed. 4. The drawer rotation operation type door lock handle device according to any one of claims 1 to 3, wherein the lock handle device is driven by an annular rib 29.

A plurality of annular grooves (32) are formed on the outer peripheral surface of the main shaft (3), and an O-ring (33) fitted with the annular groove (32) is brought into close contact with the inner peripheral surface of the bearing tube portion (2). A lock handle device for a drawer rotation operation type door according to any one of the above.

A resin bush 36 is inserted between the outer peripheral surface step portion 34 of the main shaft 3 and the inner peripheral surface step portion 35 of the bearing tube portion 2, and the resin latch body 38 of the lock unit 16 is inserted into the inner surface receiving groove 37 of the fixed case 1. 6. The drawer / rotation operation type door lock handle device according to claim 1, wherein the lock handle device is engaged and disengaged.