JP2011089274A - Lock device for mailbox - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a padlock easily locked to/unlocked from a movable pivot. <P>SOLUTION: This lock device for the mailbox includes an outer cylindrical body which is fixed to a free end of a door of the mailbox, a latch mechanism which is provided via a supporting body at the back end of the outer cylindrical body and equipped with a latch plate for being engaged with/disengaged from a stopper piece of the mailbox, a latch regulating piece which is directly or indirectly provided in the outer cylindrical body to be capable of regulating the latch plate, and the movable pivot which is provided in the outer cylindrical body and which has a lock hole for a lock arm of the lock. The movable pivot is rotatably engaged with the outer cylindrical body so that the lock hole can be constantly exposed from a front surface of the outer cylindrical body. When an outer end of its knob is pinched and rotatively operated, the lock hole is positionally displaced in a circumferential direction as-is in a position to be engaged with the outer cylindrical body. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、マンションや一戸建て住宅の玄関先などに設置される郵便受け箱の錠装置に関する。   The present invention relates to a mail box box locking device installed at an entrance of a condominium or a detached house.

特許文献１や特許文献２には、「郵便受け箱の扉の自由端部に固定された外筒体と、この外筒体の後端部に支持体を介して設けられかつ郵便受け箱内のストッパー片と係脱するラッチ板を備えたラッチ機構と、前記ラッチ板を規制することができるように前記外筒体に直接又は間接的に設けられたラッチ規制片と、前記外筒体に設けられかつ南京錠のロックアーム用のロック孔を有する可動中軸或いは可動摘み部材とから成る郵便受け箱の錠装置」が記載されている。   Patent Document 1 and Patent Document 2 describe that “an outer cylinder fixed to the free end of the door of the mailbox and a stopper provided in the rear end of the outer cylinder via a support and in the mailbox. A latch mechanism having a latch plate that engages with and disengages from the piece, a latch restricting piece provided directly or indirectly on the outer cylinder so as to be able to regulate the latch plate, and provided on the outer cylinder. In addition, there is described a "box lock device comprising a movable center shaft or a movable knob member having a lock hole for a lock arm of a padlock".

上記特許文献１の錠装置の問題点は、可動中軸（１４）をバネ部材（１７）のバネ力に抗して摘み回動部材（８）から引き出した状態で南京錠（２０）のロックアーム（２１）を可動中軸（１４）の施錠孔（１５）に通さなければならないので、本施錠状態にするのが容易でない。また、可動中軸（１４）は回転しないので、南京錠を簡単に取付け又は取り外すことができない。さらに、仮施錠状態にするために、外筒体（１）や可動中軸（１４）とは別個に摘み回動部材（８）を設けているので、部品点数が多くなる（符号は公報のものを援用）。   The problem with the locking device of Patent Document 1 is that the lock center (14) of the padlock (20) in a state where the movable central shaft (14) is pulled out of the rotary member (8) against the spring force of the spring member (17). 21) must pass through the locking hole (15) of the movable middle shaft (14), so it is not easy to make this locked state. Further, since the movable middle shaft (14) does not rotate, the padlock cannot be easily attached or removed. Furthermore, in order to obtain a temporary locking state, the knob turning member (8) is provided separately from the outer cylindrical body (1) and the movable middle shaft (14), so that the number of parts increases (reference numerals are those of the publication) ).

また、上記特許文献２の錠装置の問題点は、外筒体内にロッ孔が常に位置しているので、外筒体に前記ロッ孔と連通可能な貫通孔を形成しなければならない。ロッ孔が前記貫通孔と連通状態となる上下方向に位置した状態でのみ貫通孔およびロッ孔に南京錠のロックアームを通さなければならないので、南京錠のロック及び南京錠の取付け又は取り外しが面倒である（周知のように南京錠の鍵穴は全て下向き）。また、特許文献２の錠装置は、特許文献１の錠装置と同様に扉を閉めた仮施錠状態に於いて、南京錠を用いて本施錠状態にすることを目的としているので、錠装置の構成が複雑になる。   Further, the problem with the locking device of Patent Document 2 is that the lock hole is always located in the outer cylinder, and therefore, a through hole that can communicate with the lock hole must be formed in the outer cylinder. Since it is necessary to pass the lock arm of the padlock through the through hole and the lock hole only when the lock hole is positioned in the up-and-down direction communicating with the through hole, it is troublesome to attach or remove the padlock and the padlock ( As is well known, all padlock keyholes face down. Moreover, since the locking device of patent document 2 aims at making this locked state using a padlock in the temporary locking state which closed the door similarly to the locking device of patent document 1, it is the structure of a locking device. Becomes complicated.

実公平６−８２２１号No. 6-8221 特開２００９−９１７２８号JP 2009-91728 A

本発明の所期の目的は、可動中軸に対する錠のロック及び錠の取り外しが容易であることである。第２の目的は、仮施錠状態を無くし、直ちに本施錠状態にすることができることである。付言すると、錠装置の構成をシンプルにすることである。第３の目的は、可動中軸に複数の機能を持たせることにより、各部品を短時間に組み合わせることができることである。   The intended object of the present invention is that it is easy to lock and remove the lock from the movable shaft. The second purpose is to eliminate the temporary locking state and immediately enter the locked state. In other words, the configuration of the lock device is simplified. The third object is that the parts can be combined in a short time by providing the movable middle shaft with a plurality of functions.

本発明の郵便受け箱の錠装置は、郵便受け箱の扉の自由端部に固定された外筒体と、この外筒体の後端部に支持体を介して設けられかつ郵便受け箱のストッパー片と係脱するラッチ板を備えたラッチ機構と、ラッチ板を規制することができるように外筒体に直接又は間接的に設けられたラッチ規制片と、外筒体に設けられかつ錠のロックアーム用のロック孔を有する可動中軸とから成る郵便受け箱の錠装置に於いて、前記ラッチ規制片は、前記可動中軸の内端部と前記支持体の先端部に軸方向に移動可能に内装され、また、前記可動中軸は、前記ロック孔が前記外筒体の前面から常に露出するように該外筒体に回転自在に係合し、その摘み外端部を摘んで回転操作すると、前記ロック孔は、外筒体に係合する位置にてそのまま周方向に位置変位する。   The lock device for the mailbox according to the present invention includes an outer cylinder fixed to the free end of the door of the mailbox, and a stopper piece of the mailbox that is provided at the rear end of the outer cylinder via a support. A latch mechanism having a latch plate to be engaged and disengaged, a latch restricting piece provided directly or indirectly on the outer cylinder so as to be able to regulate the latch plate, and a lock arm of the lock provided on the outer cylinder In the mailbox receiving box locking device comprising a movable center shaft having a lock hole for the latch, the latch restricting piece is mounted on the inner end portion of the movable middle shaft and the front end portion of the support body so as to be movable in the axial direction. Further, when the movable middle shaft is rotatably engaged with the outer cylinder so that the lock hole is always exposed from the front surface of the outer cylinder, the outer end of the knob is picked and rotated, Is changed in the circumferential direction at the position where it engages with the outer cylinder. To.

上記構成に於いて、可動中軸は、外筒体に形成された係合孔に係合する内端軸部と、この内端軸部に連設する摘み外端部と、この摘み外端部と前記内端軸部との間に形成された半径方向のロック孔と、このロック孔に対して連通するように前記内端軸部の内端面から軸方向に形成され、かつ、ラッチ規制片のロック孔方向へと移動を許容する案内孔とを有することを特徴とする。また、錠のロックアームを可動中軸のロック孔に通してロックすると、錠装置は、扉を閉めた非仮施錠状態から直ちに本施錠状態になることを特徴とする。   In the above configuration, the movable middle shaft includes an inner end shaft portion that engages with an engagement hole formed in the outer cylindrical body, a knob outer end portion that is connected to the inner end shaft portion, and the knob outer end portion. A lock hole in the radial direction formed between the inner end shaft portion and the inner end shaft portion, and is formed in the axial direction from the inner end surface of the inner end shaft portion so as to communicate with the lock hole, and the latch restricting piece And a guide hole that allows movement in the direction of the lock hole. In addition, when the lock arm of the lock is locked through the lock hole of the movable middle shaft, the lock device immediately changes from the non-temporary lock state with the door closed to the present lock state.

（ａ）可動中軸に対する錠のロック及び錠の取り外しが容易である。図９は南京錠Ｚをロックする一例を示すが、南京錠Ｚを可動中軸２１に取り付ける場合には、図８で示すように、可動中軸２１を自由に回転させて、一番好きな方向から南京錠Ｚのロックアーム３１を可動中軸２１のロック孔２４に通すことができる。また、図１０は南京錠Ｚのロックを解除する一例を示すが、可動中軸２１を任意の位置へと回転し、しかる後に南京錠Ｚの底部の鍵穴を見ながら、該鍵穴に合鍵Ｋを差し込むことができる。
（ｂ）請求項２及び請求項３記載の発明は、仮施錠状態を無くし、直ちに本施錠状態にすることができる。したがって、錠装置の構成をシンプルにすることができる。
（ｃ）また請求項２に記載の発明は、可動中軸に複数の機能を持たせることにより、各部品を短時間に組み合わせることができる。 (A) It is easy to lock and remove the lock from the movable shaft. FIG. 9 shows an example of locking the padlock Z. When the padlock Z is attached to the movable middle shaft 21, as shown in FIG. 8, the movable middle shaft 21 is freely rotated, and the padlock Z is viewed from the most preferred direction. The lock arm 31 can be passed through the lock hole 24 of the movable middle shaft 21. FIG. 10 shows an example of releasing the lock of the padlock Z. However, the movable shaft 21 can be rotated to an arbitrary position, and then the key K can be inserted into the keyhole while looking at the keyhole at the bottom of the padlock Z. it can.
(B) The invention according to claim 2 and claim 3 can eliminate the temporary lock state and immediately enter the lock state. Therefore, the configuration of the lock device can be simplified.
(C) In the invention according to claim 2, the parts can be combined in a short time by providing the movable middle shaft with a plurality of functions.

図１乃至図１０は本発明の一例を示す各説明図。
実施環境を示す概略断面説明図（扉を閉めた非仮施錠状態）。 図１の扉を閉めた非仮施錠状態に於いて、南京錠のロックアームを可動中軸のロック孔に通してロックした本施錠状態の説明図。 扉を閉める時に於いて、ラッチ板とラッチ規制片の作動を示す概略説明図。 扉を開ける時に於いて、ラッチ板とラッチ規制片の作動を示す概略説明図。 本施錠状態を示す概略斜視図。 構成部材の分解斜視図。 構成部材の説明図。 可動中軸が回転することにより、そのロック孔が自在に位置変位する説明図。 南京錠をロックする一例を示す概略説明図。 南京錠を外す一例を示す概略説明図。 1 to 10 are explanatory views showing an example of the present invention.
Schematic cross-sectional explanatory drawing showing the implementation environment (non-temporary locked state with the door closed). FIG. 3 is an explanatory view of the locked state in which the lock arm of the padlock is locked through the lock hole of the movable middle shaft in the non-temporary locked state with the door of FIG. 1 closed. Schematic explanatory drawing which shows the action | operation of a latch plate and a latch control piece when closing a door. The schematic explanatory drawing which shows the action | operation of a latch plate and a latch control piece when opening a door. The schematic perspective view which shows this locked state. The disassembled perspective view of a structural member. Explanatory drawing of a structural member. Explanatory drawing that the position of the lock hole freely displaces when the movable middle shaft rotates. Schematic explanatory drawing which shows an example which locks a padlock. Schematic explanatory drawing which shows an example which removes a padlock.

以下、図面に示す実施例により本発明を詳細に説明する。図１は扉を閉めた非仮施錠状態である。扉を閉めた状態に於いて、図２で示すように、例えば錠の一例としての南京錠Ｚのロックアーム３１を可動中軸２１のロック孔２４に通して、該ロックアーム３１を南京錠Ｚの係合穴にロックすると、錠装置Ｘは直ちに本施錠状態と成る。   Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings. FIG. 1 shows a non-temporary locked state with the door closed. When the door is closed, as shown in FIG. 2, for example, a lock arm 31 of a padlock Z as an example of a lock is passed through a lock hole 24 of the movable center shaft 21, and the lock arm 31 is engaged with the padlock Z. When locked in the hole, the locking device X immediately enters the locked state.

さて、Ｘはマンションや一戸建て住宅の玄関先などに設置される郵便箱Ｙの扉ａに取付けられる錠装置である。この錠装置Ｘも、特許文献１や特許文献２と同様に、郵便受け箱Ｙの扉ａの自由端部に固定された外筒体１と、この外筒体の後端部に支持体５を介して設けられかつ郵便受け箱Ｙのストッパー片ｅと係脱するラッチ板６を備えたラッチ機構４と、前記ラッチ板６を規制することができるように前記外筒体１に直接又は間接的に設けられたラッチ規制片１１と、前記外筒体１に設けられかつ南京錠Ｚのロックアーム３１用のロック孔２４を有する可動中軸２１とから成る。   Now, X is a lock device attached to the door a of the mail box Y installed in the entrance of a condominium or a detached house. Similarly to Patent Document 1 and Patent Document 2, this locking device X also has an outer cylindrical body 1 fixed to the free end of the door a of the mail box Y, and a support 5 at the rear end of the outer cylindrical body. And a latch mechanism 4 provided with a latch plate 6 that engages and disengages with a stopper piece e of the mail box Y, and the outer cylinder 1 directly or indirectly so that the latch plate 6 can be regulated. The latch restricting piece 11 is provided, and a movable central shaft 21 provided in the outer cylinder 1 and having a lock hole 24 for the lock arm 31 of the padlock Z.

まず、１は郵便箱Ｙの扉ａの開放側端部にネジなどの固着具ｂで固着される外筒体で、この外筒体１はフランジ状先端部１ａに係合孔２が形成されていると共に、該先端部１ａに連設する後端部側には前記扉ａに形成された取付孔を貫通する外筒部１ｂが形成されている。そして、前記先端部１ａには、その裏側から先端面に向かって固着具ｂ用のネジ穴ｃが複数個形成されている。また前記係合孔２は、断面段差状の軸孔であり、この軸孔の機能を有する係合孔２には、後述する可動中軸２１の内端部２２が係止状態に係合する。さらに、前記外筒部１ｂには、前記係合孔２よりも大径の嵌合孔３が連通形成され、この嵌合孔３には後述の支持体５の角型先端部５ｂが嵌入する。   First, reference numeral 1 denotes an outer cylinder that is fixed to the open end of the door a of the mailbox Y with a fixing tool b such as a screw. The outer cylinder 1 has an engagement hole 2 formed in a flange-shaped tip 1a. In addition, an outer cylinder portion 1b penetrating through an attachment hole formed in the door a is formed on the rear end portion side continuous with the tip portion 1a. A plurality of screw holes c for the fasteners b are formed in the distal end portion 1a from the back side toward the distal end surface. The engagement hole 2 is a shaft hole having a stepped cross section, and an inner end 22 of a movable middle shaft 21 described later is engaged with the engagement hole 2 having the function of the shaft hole in a locked state. Further, a fitting hole 3 having a diameter larger than that of the engagement hole 2 is formed in communication with the outer cylindrical portion 1b, and a square tip portion 5b of a support body 5 to be described later is fitted into the fitting hole 3. .

次に、４は外筒体１の外筒部１ｂに一体的に設けられた支持体５を介して取り付けられたラッチ機構で、このラッチ機構４は、郵便箱Ｙの箱体ｄの内側壁に固定的に突設されたストッパー片ｅと係脱する弧状第１係合部６ａを有する鎌形状ラッチ板６を備えている。このラッチ板６は、その垂直板状基部の略中央部が、枢支ピン（横軸）７にて回動可能に軸支されている。ラッチ板６は、垂直板状基部の端部に後述のラッチ規制片１１の後端部１１ａに係合する第２係合部６ｂを有する。また、垂直板状基部の略中央部には枢支ピン用軸孔６ｃが形成されている。さらに、弧状第１係合部６ａの弧状外周面は、図３で示すように、箱体ｄのストッパー片ｅの端部と摺接するが、該弧状外周面の反対側に相当する弧状内周面には、ラッチバネ８の一端部を支持するバネ端支持突起６ｄが形成されている。   Next, reference numeral 4 denotes a latch mechanism attached via a support body 5 provided integrally with the outer cylinder portion 1b of the outer cylinder body 1. The latch mechanism 4 is an inner wall of the box body d of the mail box Y. A sickle-shaped latch plate 6 having an arcuate first engaging portion 6a that engages and disengages with a stopper piece e that is fixedly protruded from the stopper plate e. The latch plate 6 is pivotally supported by a pivot pin (horizontal axis) 7 at a substantially central portion of the vertical plate-like base portion. The latch plate 6 has a second engagement portion 6b that engages with a rear end portion 11a of a later-described latch restricting piece 11 at an end portion of the vertical plate-like base portion. Further, a pivot pin shaft hole 6c is formed at a substantially central portion of the vertical plate-like base. Further, as shown in FIG. 3, the arc-shaped outer peripheral surface of the arc-shaped first engaging portion 6a is in sliding contact with the end of the stopper piece e of the box d, but the arc-shaped inner peripheral surface corresponding to the opposite side of the arc-shaped outer peripheral surface. A spring end support projection 6d that supports one end of the latch spring 8 is formed on the surface.

支持体５の内部構成は、公知事項（例えば特許文献１の柱体）なので簡単に説明する。例えば後端部５ａの内部空間には、前記ラッチバネ８の他端部を支持する断面凹所状のバネ端支持部９が形成されている。また、後端部５ａに連設する角型先端部５ｂには、前記内部空間と連通する案内空間部１０が形成され、この案内空間部１０には、ピストル形状のラッチ規制片１１が進退動自在に組み込まれている。なお、本実施例の案内空間部１０はラッチ板６の第２係合部６ｂが入り込むことができるラッチ板逃し用切欠部でもある。   Since the internal structure of the support 5 is a well-known matter (for example, the column of Patent Document 1), it will be briefly described. For example, in the internal space of the rear end portion 5a, a spring end support portion 9 having a recessed shape in cross section for supporting the other end portion of the latch spring 8 is formed. Further, a guide space portion 10 that communicates with the internal space is formed in the square front end portion 5b that is connected to the rear end portion 5a, and a pistol-shaped latch restricting piece 11 moves forward and backward in the guide space portion 10. Built in freely. In addition, the guide space part 10 of a present Example is also a notch part for latch plate escape which the 2nd engaging part 6b of the latch plate 6 can enter.

次に、本発明の特徴事項の一つである可動中軸２１について説明する。可動中軸２１は、外筒体１に形成されたフランジ状先端部１ａの段差状係合孔２に係合する内端軸部２２と、この内端軸部に軸方向に連設する摘み外端部２３と、この摘み外端部２３と前記内端軸部２２との間に形成された半径方向のロック孔２４と、このロック孔２４に対して連通するように前記内端軸部２２の内端面２２ａから軸外方向に形成され、かつ、ラッチ規制片１１を前記ロック孔２４の方向へと移動を許容する案内孔２５とを有する。この可動中軸２１は、前記ロック孔２４が前記外筒体１の前面から常に露出するように該外筒体１の段差状係合孔２に内端軸部２２を介して係止された状態で回転自在に係合し、その摘み外端部２３を指で摘んで回転操作すると、前記ロック孔２４は、外筒体１に係合する位置にてそのまま周方向に位置変位する。   Next, the movable middle shaft 21 which is one of the features of the present invention will be described. The movable middle shaft 21 includes an inner end shaft portion 22 that engages with the stepped engagement hole 2 of the flange-shaped tip portion 1 a formed in the outer cylindrical body 1, and a knob outer portion that is continuous with the inner end shaft portion in the axial direction. An end portion 23, a radial lock hole 24 formed between the knob outer end portion 23 and the inner end shaft portion 22, and the inner end shaft portion 22 so as to communicate with the lock hole 24. And a guide hole 25 that is formed in an off-axis direction from the inner end face 22 a and allows the latch restricting piece 11 to move in the direction of the lock hole 24. The movable middle shaft 21 is locked to the stepped engagement hole 2 of the outer cylindrical body 1 via the inner end shaft portion 22 so that the lock hole 24 is always exposed from the front surface of the outer cylindrical body 1. When the outer end 23 of the knob is pinched with a finger and rotated, the lock hole 24 is displaced in the circumferential direction at the position where it engages with the outer cylinder 1.

付言すると、本発明の可動中軸２１は、例えば図１で示すように外筒体１のフランジ状先端部１ａの段差状係合孔２にその内端軸部２２が係合すると、該内端軸部２２は、段差状係合孔２に係止された状態となるので、操作する者の手前側に可動中軸２１を引き出すことができず、また、内端軸部２２の内端面２２ａは外筒体１の外筒部１ｂの嵌合孔３に嵌入した支持体５の角型先端部５ｂの先端面に当接するので、可動中軸２１を押し込むこともできず、その係合位置にて、かつ、ロック孔２４が外筒体１から常に露出した位置にて、その場で回転するだけである。この点、特許文献１の中軸と異なる。   In addition, when the inner end shaft portion 22 is engaged with the stepped engagement hole 2 of the flange-like distal end portion 1a of the outer cylindrical body 1, for example, as shown in FIG. Since the shaft portion 22 is locked in the stepped engagement hole 2, the movable middle shaft 21 cannot be pulled out to the front side of the operator, and the inner end surface 22a of the inner end shaft portion 22 is Since it contacts the tip surface of the square tip portion 5b of the support body 5 fitted in the fitting hole 3 of the outer cylinder portion 1b of the outer cylinder body 1, the movable middle shaft 21 cannot be pushed in, and the engagement position thereof is reached. In addition, the lock hole 24 simply rotates on the spot at a position where it is always exposed from the outer cylinder 1. This is different from the central axis of Patent Document 1.

次に、ラッチ規制片１１は、支持体５の先端部５ｂに可動中軸２１の軸方向に移動することができるように組み込まれ、かつ、該支持体５に内装した復帰バネ１２のバネ力により、その後端部１１ａが支持体５に軸支されたラッチ板６の他端部（第２係合部）６ｂに常時当接している。   Next, the latch restricting piece 11 is incorporated in the distal end portion 5 b of the support 5 so as to be movable in the axial direction of the movable middle shaft 21, and by the spring force of the return spring 12 built in the support 5. The rear end portion 11 a is always in contact with the other end portion (second engaging portion) 6 b of the latch plate 6 that is pivotally supported by the support body 5.

付言すると、ラッチ規制片１１は、復帰バネ１２のバネ力により、常にラッチ規制片１１の方向に付勢されているので、後端部１１ａに連設する棒状先端部１１ｂは可動中軸２１のロック孔２４に臨むように可動中軸２１の案内孔２５にスライド自在に嵌入している。本実施例では、ラッチ規制片１１は、全体として「ピストル形状」に形成され、その後端部１１ａがラッチ板６の他端部６ｂに当接するので、例えば閉扉時、ラッチ板６は、図１で示すように垂直状態となる。   In other words, the latch restricting piece 11 is always urged in the direction of the latch restricting piece 11 by the spring force of the return spring 12, so that the rod-like tip end portion 11 b provided continuously with the rear end portion 11 a is locked to the movable center shaft 21. It is slidably fitted into the guide hole 25 of the movable middle shaft 21 so as to face the hole 24. In this embodiment, the latch restricting piece 11 is formed in a “pistol shape” as a whole, and its rear end portion 11a abuts against the other end portion 6b of the latch plate 6, so that, for example, when the door is closed, the latch plate 6 is shown in FIG. As shown in FIG.

ここで、図１乃至図４を参照にして、本発明の錠装置Ｘが、南京錠Ｚのロックアーム３１でロックしない限り常に非仮施錠状態であること、また、南京錠Ｚを可動中軸２１に取り付けると直ちに本施錠状態となることを説明する。   Here, referring to FIGS. 1 to 4, the locking device X of the present invention is always in a non-temporarily locked state unless locked by the lock arm 31 of the padlock Z, and the padlock Z is attached to the movable shaft 21. Explain that the locked state is immediately entered.

図１は扉を閉めた非仮施錠状態である。本発明の錠装置Ｘは、特許文献１及び特許文献２に記載のように「仮施錠状態」にする機構を備えていないので、図２で示すように、扉ａを閉めた非仮施錠状態（図１）に於いて、南京錠Ｚのロックアーム３１を可動中軸２１のロック孔２４に通してロックすると、直ちに本施錠状態となる。   FIG. 1 shows a non-temporary locked state with the door closed. Since the locking device X of the present invention does not include a mechanism for making the “temporary locking state” as described in Patent Document 1 and Patent Document 2, as shown in FIG. 2, the non-temporary locking state in which the door a is closed. In FIG. 1, when the lock arm 31 of the padlock Z is locked through the lock hole 24 of the movable middle shaft 21, the locked state is immediately entered.

すなわち、図２の本施錠状態で扉ａを開けようとしても、ラッチ規制片１１はロックアーム３１が存在するために、その棒状先端部１１ｂがロックアーム３１に衝突して軸外方向へ所要量スライドすることができず、その結果、ラッチ規制片１１の後端部１１ａによって規制されたラッチ板６は枢支ピン７を支点に回転することができない。   That is, even if it is attempted to open the door a in the locked state of FIG. 2, since the latch restricting piece 11 has the lock arm 31, the rod-shaped tip portion 11 b collides with the lock arm 31 and the required amount in the off-axis direction. As a result, the latch plate 6 restricted by the rear end portion 11a of the latch restricting piece 11 cannot rotate about the pivot pin 7 as a fulcrum.

これに対して、図１はラッチ規制片１１が自由に軸外方向（ロック孔２４）へとスライドすることができる非仮施錠状態なので、図３で示すように扉ａを閉めるときは、ラッチ規制片１１は、その後端部１１ａがラッチ板６の他端部（第２係合部）６ｂに押圧されてロック孔２４に突出する。この時、ラッチ板６は、枢支ピン７を支点にして、かつ、ラッチバネ８のバネ力に抗して矢印で示す反時計方向に回転するので、ラッチ規制片１１は軸外方向へと移動する。この理は、図４で示すように扉ａを開けるときも同様である。但し、図３と図４を対比すると明らかなように、郵便受け箱Ｙ内のストッパー片ｅに対するラッチ板６の係合箇所が異なる。   On the other hand, FIG. 1 shows a non-temporarily locked state in which the latch restricting piece 11 can freely slide in the off-axis direction (the lock hole 24). Therefore, when the door a is closed as shown in FIG. The restricting piece 11 protrudes into the lock hole 24 when the rear end portion 11 a is pressed by the other end portion (second engaging portion) 6 b of the latch plate 6. At this time, the latch plate 6 rotates about the pivot pin 7 as a fulcrum and counterclockwise as shown by the arrow against the spring force of the latch spring 8, so that the latch restricting piece 11 moves in the off-axis direction. To do. This is the same when the door a is opened as shown in FIG. However, as apparent from a comparison between FIG. 3 and FIG. 4, the engagement position of the latch plate 6 with respect to the stopper piece e in the mail box Y is different.

本実施例では、ラッチ規制片１１は、全体として「ピストル形状」に形成され、一方、ラッチ規制片１１の後端部１１ａに係合するラッチ板６は鎌形状に形成されているが、これらの形状は任意に設計変更可能である。例えばラッチ板６の前記後端部１１ａに対する他端部（第２係合部）６ｂの形状を変えると、当然にラッチ規制片１１の後端部１１ａの係合部分の形状も変わる。また、ラッチ板６の箱体ｄのストッパー片ｅに対する一端部（第１係合部）６ａの形状も、ストッパー片ｅの端部の形状に対応させて任意に変えることもできる。さらに、特に、図示しないが、可動中軸２１の摘み外端部２３に嵌脱自在なキャップを装着することもできる。   In this embodiment, the latch restricting piece 11 is formed in a “pistol shape” as a whole, while the latch plate 6 engaged with the rear end portion 11a of the latch restricting piece 11 is formed in a sickle shape. The shape of can be arbitrarily changed in design. For example, when the shape of the other end portion (second engagement portion) 6b with respect to the rear end portion 11a of the latch plate 6 is changed, the shape of the engagement portion of the rear end portion 11a of the latch restricting piece 11 is naturally changed. Further, the shape of one end (first engagement portion) 6a of the latch plate 6 with respect to the stopper piece e of the box d can also be arbitrarily changed according to the shape of the end of the stopper piece e. Furthermore, although not shown in particular, a cap that can be freely fitted and detached can be attached to the knob outer end 23 of the movable middle shaft 21.

なお、本実施例に於いて、錠の一例として南京錠を用いて説明したが、錠には、南京錠のほか、可変式文字合わせ錠、チェーン錠等のロックアーム又はこれに類似する物（鎖）も含まれる。   In this embodiment, a padlock is used as an example of the lock. However, the lock includes a padlock, a variable character alignment lock, a lock arm such as a chain lock, or the like (chain). Is also included.

本発明は、錠前や建具の分野で用いられる。   The present invention is used in the fields of locks and joinery.

Ｘ…錠装置、Ｙ…郵便箱、Ｚ…南京錠、ａ…扉、ｄ…箱体、ｅ…ストッパー片、１…外筒体、１ａ…フランジ状先端部、１ｂ…外筒部、２…係合孔、３…嵌合孔、４…ラッチ機構、５…支持体、５ａ…後端部、５ｂ…先端部、６…ラッチ板、７…枢支ピン、８…ラッチバネ、１０…案内空間部、１１…ラッチ規制片、１２…復帰バネ、２１…可動中軸、２２…内端軸部、２３…摘み外端部、２４…ロック孔、２５…案内孔、３１…ロックアーム。 X: Locking device, Y: Mail box, Z: Padlock, a ... Door, d ... Box, e ... Stopper piece, 1 ... Outer cylinder, 1a ... Flange-shaped tip, 1b ... Outer cylinder, 2 ... Engagement Fitting hole, 3 ... fitting hole, 4 ... latch mechanism, 5 ... support, 5a ... rear end portion, 5b ... tip portion, 6 ... latch plate, 7 ... pivot pin, 8 ... latch spring, 10 ... guide space portion , 11 ... latch regulating piece, 12 ... return spring, 21 ... movable middle shaft, 22 ... inner end shaft part, 23 ... knob outer end part, 24 ... lock hole, 25 ... guide hole, 31 ... lock arm.

Claims (3)

郵便受け箱の扉の自由端部に固定された外筒体と、この外筒体の後端部に支持体を介して設けられかつ郵便受け箱のストッパー片と係脱するラッチ板を備えたラッチ機構と、ラッチ板を規制することができるように外筒体に直接又は間接的に設けられたラッチ規制片と、外筒体に設けられかつ錠のロックアーム用のロック孔を有する可動中軸とから成る郵便受け箱の錠装置に於いて、前記ラッチ規制片は、前記可動中軸の内端部と前記支持体の先端部に軸方向に移動可能に内装され、また、前記可動中軸は、前記ロック孔が前記外筒体の前面から常に露出するように該外筒体に回転自在に係合し、その摘み外端部を摘んで回転操作すると、前記ロック孔は、外筒体に係合する位置にてそのまま周方向に位置変位する郵便受け箱の錠装置。 Latch mechanism comprising an outer cylinder fixed to the free end of the door of the mailbox and a latch plate provided at the rear end of the outer cylinder via a support and engaged with and disengaged from the stopper piece of the mailbox A latch restricting piece provided directly or indirectly on the outer cylinder so as to restrict the latch plate, and a movable middle shaft provided on the outer cylinder and having a lock hole for a lock arm of the lock. In the mail box locking device, the latch restricting piece is mounted on the inner end portion of the movable middle shaft and the front end portion of the support body so as to be movable in the axial direction, and the movable middle shaft has the lock hole. Is engaged with the outer cylinder so as to be always exposed from the front surface of the outer cylinder, and when the outer end of the knob is picked and rotated, the lock hole is engaged with the outer cylinder. A mail box lock device that is displaced in the circumferential direction. 請求項１に於いて、可動中軸は、外筒体に形成された係合孔に係合する内端軸部と、この内端軸部に連設する摘み外端部と、この摘み外端部と前記内端軸部との間に形成された半径方向のロック孔と、このロック孔に対して連通するように前記内端軸部の内端面から軸外方向に形成され、かつ、ラッチ規制片のロック孔方向へと移動を許容する案内孔とを有することを特徴とする郵便受け箱の錠装置。 The movable middle shaft according to claim 1, wherein the movable middle shaft is engaged with an inner end shaft portion that engages with an engagement hole formed in the outer cylindrical body, a knob outer end portion that is connected to the inner end shaft portion, and the knob outer end. And a radial lock hole formed between the inner end shaft portion and the inner end shaft portion, and is formed in an off-axis direction from the inner end surface of the inner end shaft portion so as to communicate with the lock hole, and is latched A mail box box locking device having a guide hole that allows movement of the restricting piece toward the lock hole. 請求項１に於いて、錠のロックアームを可動中軸のロック孔に通してロックすると、錠装置は、扉を閉めた非仮施錠状態から直ちに本施錠状態になることを特徴とする郵便受け箱の錠装置。 3. The mail receiving box according to claim 1, wherein when the lock arm of the lock is locked through the lock hole of the movable middle shaft, the lock device immediately enters the locked state from the non-temporary locked state with the door closed. Locking device.

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