JP3560323B2

JP3560323B2 - Door locking device

Info

Publication number: JP3560323B2
Application number: JP2000043805A
Authority: JP
Inventors: 忠芳中村
Original assignee: Nitto Kogyo Corp
Current assignee: Nitto Kogyo Corp
Priority date: 2000-02-22
Filing date: 2000-02-22
Publication date: 2004-09-02
Anticipated expiration: 2020-02-22
Also published as: JP2001234658A

Description

【０００１】
【発明の属する技術分野】
本発明は、電気収納箱の扉に取り付けられる扉の鎖錠装置に関するものである。
【０００２】
【従来の技術】
従来の扉の鎖錠装置としては、図８に示す平面ハンドルのように本体５１に回動自在に軸支した軸５２の基端に取り付けた引掛けベロ５３を軸５２の先端に起伏自在に取り付けたハンドル５４を引き起こしたうえ回動操作をして、該引掛けベロ５３を箱本体５５に設けた係止部５５ａに係止させるものであった。
【０００３】
【発明が解決しようとする課題】
ところが、箱本体５５と扉５６との間に高い気密性を要求する場合には、箱本体５５と扉５６との間に介在させたパッキン５７は弾発力の強い発泡度の低い硬めのものを使用するとともに圧縮割合を多くして締めつけるものである。そのため、前記のような引掛けベロ５３を箱本体５５に設けた係止部５５ａに軸５２を中心に回動させて係止させるものにあっては引掛けベロ５３がパッキン５７の弾発力に押圧されている係止部５５ａに擦りながら回動するためハンドルの操作が困難であった。
【０００４】
【課題を解決するための手段】
前記の課題を解決するためになされた本発明の扉の鎖錠装置は、基端部を本体の後面に貫通させた取手を該本体の前面に前後方向に回動可能に軸支して設けるとともに、本体の後面にフックを前後方向に軸支し、該フックを前記取手の基端部とを第１の枢着ピンをもって一端を枢着したリンクプレートの他端とを第２の枢着ピンをもって枢着して該取手の起倒作用によりフックが連動して鎖錠位置と解錠位置をとる鎖錠装置であって、取手が伏倒した状態にあっては第１の枢着ピンが、前記取手の本体への枢軸部と第２の枢着ピンとの中立点より本体の前面側に位置する構造とするとともにフックが箱本体の受け金具に係合する鎖錠位置をとる場合にフックの係合顎部が本体の先端と対向する位置となる構造とし、さらに、フックの係合顎部の基端と取手のリンク片の下端延長部にロッド棒の枢着部を設け、この枢着部にロッド棒の基端を枢支して、該ロッド棒の先端に側方に設けた係止用のスライダーを箱本体に取り付けた受金具に係脱させて鎖錠、解錠を行うことを特徴とするものである。また、取手の伏倒状態と引き起し状態を保持する反転バネを設けることが好ましい。
【０００５】
【発明の実施の形態】
次に、本発明の好ましい実施の形態を図面に基づき説明する。
１は箱本体５５の開口部を開閉する扉５６に固定する本体、２は取手であり、該取手２は基端部２ａを本体１の後面に貫通させ該本体１の前面に前後方向に回動可能に軸支して設けてある。すなわち、本体１の前面から後面に亘って透設した角孔部３に基端部２ａを貫通させたうえ軸孔２ｂに軸ピン４をもって本体１への枢軸部として前後方向に回動可能に軸支されて設けられている。また、該本体１の後面即ち角孔部３の後面上部に設けた軸受凹部６に前後方向に回動可能にフック５が軸支されている。このフック５は基端に軸孔５ａを設けた軸受板部５ｂの先端上方に向けて係合顎部５ｃを連設した鉤状のものであり、軸孔５ａに軸ピン７を挿通したうえ前記軸受凹部６に軸支されている。
【０００６】
さらに、該フック５の係止顎部５ｃの基端を前記取手２の基端部２ａとを第１の枢着ピン８ａをもって一端を枢着したリンクプレート８の他端とを第２の枢着ピン８ｂをもって枢着して該取手２の起倒作用によりフック５が連動して鎖錠位置と解錠位置をとるものとされている。そして、取手２が伏倒した状態にあっては第１の枢着ピン８ａが、前記取手２の本体１への枢軸部である軸ピン４と第２の枢着ピン８ｂとの中立点すなわち直線位置より本体１の前面側に位置する構造とするとともにフック５が係止顎部５ｃを箱本体５５の受け金具５５ａに係合する鎖錠位置をとる場合にフック (5) の係合顎部 (5C) が本体 (1) の先端と対向する位置となる構造とするものである。
【０００７】
すなわち、図１に示すように取手２が本体１の前面に当接した伏倒した状態にあっては第１の枢着ピン８ａが軸ピン４と第２の枢着ピン８ｂとの中立点即ち直線位置より本体１の前面側に位置する状態では、フック５側から係合解除方向の力が加わってもリンクプレート８が第１の枢着ピン８ａを本体１の前面側に向けた作用のみとなり第１の枢着ピン８ａに枢支した取手２の基端部２ａを前面側に附勢して取手２を軸ピン４を起点に本体１の前面を押圧して解錠することがないものである。
【０００８】
また、図２に示すように取手２を本体１から引き起こせば、軸ピン４を起点に取手２の基端部２ａが下向きに回動してリンクプレート８の一端を下方に引き寄せてリンクプレート８の他端に枢着したフック５を軸ピン７を起点に下方に向けて回動してフック５の係合顎部５ｃが箱本体５５の受け金具５５ａから離脱して解錠位置をとることとなる。
【０００９】
９は取手の伏倒状態と引き起し状態を保持する押しバネよりなる反転バネであり、該反転バネ９は本体１の角孔部３の下方側に設けた受段部１０と取手２の基端部２ａの後面に突設した伏倒保持押圧面１１ａと引き起し保持押圧面１１ｂを形成した楔状の押圧部１１との間に介在させて、取手２が本体１の前面に当接した伏倒した状態において伏倒保持押圧面１１ａを押圧して軸ピン４を起点に取手２が本体１の前面側に附勢して振動などにより取手２が浮き上がるのを防止する。また、解錠時において取手２が引き起こし状態となる場合は押圧部１１が本体１の前面側に回動して伏倒保持押圧面１１ａが反転バネ９から離脱して引き起し保持押圧面１１ｂが反転バネ９の臨む位置に移動して該引き起し保持押圧面１１ｂが反転バネ９に押圧されて取手２の引き起こし状態を保持するものである。
【００１０】
１２は悪戯等により取手２を引き起こして解錠されるのを防止するため、取手２を本体１の前面にロックするためのキーである。また、図 1 、図２に示すようにフック５の係合顎部５ｃの基端と取手２のリンク片の下端延長部２ｃにロッド棒の枢着部５ｄ、２ｄを設けている。図６及び図７（箱本体５５と扉５６を図示せず）に示す１３、１４は前記取手２の起伏動作により上下動するフック５の係合顎部５ｃの基端に設けた枢着部５ｄと取手２のリンク片の下端延長部２ｃに設けた枢着部２ｄに基端を枢支したロッド棒であり、該ロッド棒１３、１４は先端に側方に設けた係止用のスライダー１５を箱本体５５に取り付けた受金具５５ｂに係脱させて鎖錠、解錠を行うものである。１６はロッド棒１３、１４の上下動を案内するための案内金具である。
【００１１】
このように本発明の扉の鎖錠装置は、取手２を起伏させることによりリンクプレート８を介してフック５を前後方向に回動させて該フック５の係合顎部５ｃを箱体５５の受け金具５５ａの後面側から係脱させて鎖錠・解錠を行うものであるから、気密性を高めるため箱本体５５と扉５６との間に介在させたパッキン５７の圧縮割合を多くして締めつけても取手２の操作は容易なものである。また、フック５を前後方向に回動させる構成としているので、幅方向のスペースが狭くてすむので、図３に示すように箱本体５５の水切り部５５ｃの外側に設けた受け金具５５ａに対応して取り付けできるので箱内の有効面積を広くすることもできるものである。
【００１２】
また、取手２が本体１の前面に当接した伏倒した状態にあっては、第１の枢着ピン８ａが軸ピン４と第２の枢着ピン８ｂとの中立点即ち直線位置より本体１の前面側に位置する構造とするとともにフック５の係合顎部５ｃが箱体５５の受け金具５５ａに係合する鎖錠位置をとる構造としているので、風、振動等で扉５５に開く方向の力が加わってこれによりフック５に係合解除方向の力が加わってもリンクプレート８の第１の枢着ピン８ａ側を本体１の前面側に向けた作用のみとなり第１の枢着ピン８ａに枢着した取手２の基端部２ａを前面側に附勢して取手２を軸ピン４を起点に本体１の前面を押圧して解錠することがないものであるから、解錠を防止するための取手２の伏倒状態を保持するための係止手段を不要とするものである。
【００１３】
【発明の効果】
以上に説明したように、本発明の扉の鎖錠装置は、取手の操作による鎖錠・解錠作業が容易であるうえ鎖錠時にフック側から力が加わってもフックが解錠することがなく確実な鎖錠状態を保持できるものである。
従って、従来の扉の鎖錠装置の問題点を解決したものとして業界にもたらす益大なものである。
【図面の簡単な説明】
【図１】本発明の実施の形態を鎖錠状態で示す一部切側面図である。
【図２】本発明の実施の形態を解錠状態で示す一部切側面図である。
【図３】本発明の実施の形態を鎖錠状態で示す平面図である。
【図４】本発明の実施の形態を示す斜視図である。
【図５】本発明の実施の形態を分解して示す斜視図である。
【図６】本発明の実施の形態を鎖錠状態で示す斜視図である。
【図７】本発明の実施の形態を解錠状態で示す斜視図である。
【図８】従来例を示す斜視図である。
【符号の説明】
１本体
２取手
２ａ基端部
３角孔部
５フック
５ｃ係合顎部
６軸受凹部
８リンクプレート
８ａ第１の枢着ピン
８ｂ第２の枢着ピン[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a door locking device attached to a door of an electric storage box.
[0002]
[Prior art]
As a conventional door locking device, a hooking tongue 53 attached to a base end of a shaft 52 rotatably supported on a main body 51 like a flat handle shown in FIG. The handle 54 attached thereto is raised and rotated to lock the hooked tongue 53 on a locking portion 55 a provided on the box body 55.
[0003]
[Problems to be solved by the invention]
However, when high airtightness is required between the box main body 55 and the door 56, the packing 57 interposed between the box main body 55 and the door 56 has a high elasticity and a low foaming degree. And tightening by increasing the compression ratio. For this reason, in the case where the hooking tongue 53 is rotated around the shaft 52 and locked to the locking portion 55 a provided on the box body 55 as described above, the hooking tongue 53 is formed by the elastic force of the packing 57. The operation of the handle was difficult because the rotation was performed while rubbing the locking portion 55a pressed by the handle.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the door locking device of the present invention is provided with a handle having a base end portion penetrating through the rear surface of the main body and pivotally supported on the front surface of the main body so as to be rotatable in the front-rear direction. At the same time, a hook is pivotally supported on the rear surface of the main body in the front-rear direction, and the hook is connected to the base end of the handle with the other end of a link plate having one end pivoted with a first pivot pin. A locking device that pivotally connects with a pin and takes up a locking position and an unlocking position in conjunction with a hook by the raising and lowering action of the handle, wherein a first pivoting pin is provided when the handle is in a prone position. Has a structure in which the handle is located on the front side of the main body from the neutral point of the pivot portion to the main body and the second pivot pin, and when the hook is in the locked position where it engages with the metal fitting of the box main body. The hook engaging jaw is located at a position facing the tip of the main body, and further, the hook engaging jaw is A pivot portion of the rod is provided at the extension of the base end and the lower end portion of the link piece of the handle, and the proximal end of the rod is pivotally supported at the pivot portion, and a locking portion is provided laterally at the tip of the rod. The locking and unlocking is performed by engaging and disengaging a slider for use with a metal fitting attached to the box body . Further, it is preferable to provide a reversing spring for holding the handle in a folded state and a raised state.
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, a preferred embodiment of the present invention will be described with reference to the drawings.
Reference numeral 1 denotes a main body that is fixed to a door 56 that opens and closes the opening of the box main body 55. Reference numeral 2 denotes a handle. The handle 2 allows the base end portion 2a to pass through the rear surface of the main body 1 and turns around the front surface of the main body 1. It is movably supported by a shaft. That is, the base end portion 2a is penetrated through the square hole portion 3 penetrated from the front surface to the rear surface of the main body 1, and the shaft hole 2b is rotatable in the front-rear direction as a pivot portion to the main body 1 with the shaft pin 4 being provided. It is provided to be pivotally supported. A hook 5 is pivotally supported in a bearing recess 6 provided on the rear surface of the main body 1, that is, in the upper portion of the rear surface of the square hole 3, so as to be able to rotate in the front-rear direction. The hook 5 has a hook-like shape in which an engaging jaw 5c is continuously provided toward the upper end of a bearing plate portion 5b having a shaft hole 5a at a base end. The shaft pin 7 is inserted through the shaft hole 5a. It is supported by the bearing recess 6.
[0006]
Further, the base end of the locking jaw 5c of the hook 5 is connected to the base end 2a of the handle 2 with the other end of the link plate 8 having one end pivotally connected with a first pivot pin 8a. The hook 5 is pivotally attached with the attachment pin 8b, and the hook 5 is linked to take the locked position and the unlocked position by the raising / lowering action of the handle 2. When the handle 2 is in the down position, the first pivot pin 8a is a neutral point between the shaft pin 4 and the second pivot pin 8b, which are pivot portions of the handle 2 to the main body 1, that is, When the hook 5 is in the locked position where the hook 5 engages with the receiving fitting 55a of the box body 55 , the hook 5 is engaged with the hook 5. The structure is such that the portion (5C) faces the tip of the main body (1) .
[0007]
That is, as shown in FIG. 1, when the handle 2 is in a prone position in contact with the front surface of the main body 1, the first pivot pin 8a is at the neutral point between the shaft pin 4 and the second pivot pin 8b. That is, in a state where the link plate 8 is located on the front side of the main body 1 from the linear position, the link plate 8 causes the first pivot pin 8a to face the front side of the main body 1 even when a force in the disengagement direction is applied from the hook 5 side. Only the base 2a of the handle 2 pivotally supported by the first pivot pin 8a is urged toward the front side, and the handle 2 is pressed from the shaft pin 4 as a starting point to unlock the main body 1. Not something.
[0008]
When the handle 2 is raised from the main body 1 as shown in FIG. 2, the base end portion 2a of the handle 2 rotates downward starting from the shaft pin 4 to pull one end of the link plate 8 downward to link the link plate. The hook 5 pivotally attached to the other end of the hook 8 is pivoted downward starting from the shaft pin 7 so that the engaging jaw 5c of the hook 5 is disengaged from the receiving bracket 55a of the box body 55 to take the unlocked position. It will be.
[0009]
Reference numeral 9 denotes a reversing spring composed of a push spring for holding the handle in a lying state and a raised state. The reversing spring 9 is provided between a receiving portion 10 provided below the square hole 3 of the main body 1 and the handle 2. The handle 2 comes into contact with the front surface of the main body 1 by being interposed between the holding / pressing surface 11a protruding from the rear surface of the base end 2a and the wedge-shaped pressing portion 11 forming the holding / pressing surface 11b. In the folded state, the handle 2 is pressed against the front side of the main body 1 with the shaft pin 4 as a starting point, and the handle 2 is prevented from floating due to vibration or the like. When the handle 2 is in a raised state during unlocking, the pressing portion 11 rotates to the front side of the main body 1, and the holding / pressing surface 11 a separates from the reversing spring 9 and is raised to hold the pressing / pressing surface 11 b. Moves to the position where the reversing spring 9 faces, and the raised holding pressing surface 11b is pressed by the reversing spring 9 to hold the handle 2 in the raised state.
[0010]
Reference numeral 12 denotes a key for locking the handle 2 to the front of the main body 1 to prevent the handle 2 from being unlocked due to mischief or the like. Also, as shown in FIGS . 1 and 2, the base end of the engaging jaw 5c of the hook 5 and the lower end extension 2c of the link piece of the handle 2 are provided with pivotal connecting portions 5d and 2d of the rod . 13 and 14 shown in FIGS. 6 and 7 (the box main body 55 and the door 56 are not shown) are pivot portions provided at the base end of the engaging jaw 5c of the hook 5 which moves up and down by the raising and lowering operation of the handle 2. 5d is a rod rod whose base end is pivotally supported on a pivotal attachment portion 2d provided at the lower end extension 2c of the link piece of the handle 2, and the rod rods 13, 14 are locking sliders provided at the tip end sideways. 15 is engaged and disengaged from a metal fitting 55b attached to the box main body 55 to perform locking and unlocking. Reference numeral 16 denotes a guide fitting for guiding the rod bars 13 and 14 to move up and down.
[0011]
As described above, in the door locking device of the present invention, the hook 5 is rotated in the front-rear direction via the link plate 8 by raising and lowering the handle 2, and the engaging jaw 5 c of the hook 5 is Since the locking and unlocking is performed by disengaging from the rear side of the receiving bracket 55a, the compression ratio of the packing 57 interposed between the box body 55 and the door 56 is increased in order to increase airtightness. Even if it is tightened, the operation of the handle 2 is easy. In addition, since the hook 5 is configured to rotate in the front-rear direction, a space in the width direction can be narrowed. Therefore, as shown in FIG. Since it can be attached by mounting, the effective area in the box can be enlarged.
[0012]
Also, when the handle 2 is in the down position in contact with the front surface of the main body 1, the first pivot pin 8a is moved from the neutral point of the shaft pin 4 and the second pivot pin 8b, that is, from the linear position. 1 and a structure in which the engaging jaw 5c of the hook 5 is in a locked position in which the engaging jaw 5c of the box 55 is engaged with the receiving fitting 55a. When the force in the direction of disengagement is applied to the hook 5 and thus the force in the disengagement direction is applied to the hook 5, only the operation of the first pivot pin 8a side of the link plate 8 toward the front side of the main body 1 is performed and the first pivot attachment Since the base end 2a of the handle 2 pivotally attached to the pin 8a is urged toward the front side, the handle 2 is not unlocked by pressing the front surface of the main body 1 from the shaft pin 4 as a starting point. This eliminates the need for a locking means for maintaining the handle 2 in a lying position for preventing locking.
[0013]
【The invention's effect】
As described above, the door locking device of the present invention makes it easy to lock and unlock by the operation of the handle, and the hook can be unlocked even when force is applied from the hook side during locking. It can maintain a secure locked state without any problem.
Accordingly, the present invention is of great benefit to the industry as a solution to the problem of the conventional door lock device.
[Brief description of the drawings]
FIG. 1 is a partially cutaway side view showing an embodiment of the present invention in a locked state.
FIG. 2 is a partially cutaway side view showing the embodiment of the present invention in an unlocked state.
FIG. 3 is a plan view showing the embodiment of the present invention in a locked state.
FIG. 4 is a perspective view showing an embodiment of the present invention.
FIG. 5 is an exploded perspective view showing an embodiment of the present invention.
FIG. 6 is a perspective view showing the embodiment of the present invention in a locked state.
FIG. 7 is a perspective view showing an embodiment of the present invention in an unlocked state.
FIG. 8 is a perspective view showing a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body 2 Handle 2a Base end 3 Square hole 5 Hook 5c Engaging jaw 6 Bearing recess 8 Link plate 8a First pivot pin 8b Second pivot pin

Claims

A handle (2) having a base end (2a) penetrated through the rear surface of the main body (1) is provided on the front surface of the main body (1) so as to be pivotable in the front-rear direction, and the rear surface of the main body (1) is provided. A link plate having a hook (5) pivotally supported in the front-rear direction, and a hook (5) connected to the base end (2a) of the handle (2) at one end by a first pivot pin (8a). The other end of (8) is pivotally connected with a second pivot pin (8b), and the hook (5) interlocks with the chain (2) to take the locked position and the unlocked position by the raising and lowering action of the handle (2). In the lock device, when the handle (2) is in a prone position, the first pivot pin (8a) is connected to the pivot of the handle (2) to the main body (1) and the second pivot. when taking the locking position engaging the hook receiving metal (55a) of (5) is a box body (55) with a structure which is positioned on the front side of the main body (1) from the neutral point of the pin (8b) The hook (5) has a structure in which the engaging jaw (5C) faces the tip of the main body (1). At the base end of the engaging jaw (5C) of (5) and at the lower end extension (2C) of the link piece of the handle (2) , pivot portions ( 5d ) and (2d) of the rod are provided. (5d), (2d) rod (13), (14) pivotally supported proximal end of the rod bar (13), a slider for locking provided laterally at the distal end of (14) ( A lock device for a door, characterized in that the device ( 15) is engaged and disengaged with a metal fitting (55b) attached to a box body (55) to perform locking and unlocking .