JP5236589B2

JP5236589B2 - Date stamp with lock

Info

Publication number: JP5236589B2
Application number: JP2009171082A
Authority: JP
Inventors: 公嗣立花
Original assignee: サンビー株式会社
Priority date: 2009-07-22
Filing date: 2009-07-22
Publication date: 2013-07-17
Anticipated expiration: 2029-07-22
Also published as: JP2011025440A

Description

本発明は、複数本の印字ベルトを備えた印字ユニットが本体ケース内に収容してある日付印に関する。本体ケースには、日付の変更を防ぐための錠構造が組み込んである。 The present invention relates to a date stamp in which a printing unit including a plurality of printing belts is housed in a main body case. The main body case incorporates a lock structure for preventing date changes.

本発明の日付印の基本構造は特許文献１に公知である。そこでは、年、月、日を印字するための複数本の印字ベルトを備えた印字ユニットと、印字ユニットを収容する本体ケースと、本体ケースの下端面に配置される固定印字体などで日付印を構成している。印字ユニットは、金属製のフレームと、同フレームに設けた支軸で回転自在に支持される調整ダイヤルと、フレーム下端に配置されるブリッジと、調整ダイヤルおよびブリッジに巻き掛けられる印字ベルトなどで構成してある。本体ケースは、主ケースと、主ケースの外面を覆うカバー筒とで構成してあり、カバー筒を開放することにより、調整ダイヤルを主ケースの調整窓から露出させて、印字ユニットの日付を変更できる。カバー筒が不用意に開放するのを防ぐために、本体ケースにはカバー筒の開放を規制するロック構造が設けてある。 The basic structure of the date stamp of the present invention is known from Patent Document 1. There, a date stamp is printed on a printing unit having a plurality of printing belts for printing the year, month, and day, a main body case that accommodates the printing unit, and a fixed printing body arranged on the lower end surface of the main body case. Is configured. The printing unit is composed of a metal frame, an adjustment dial that is rotatably supported by a spindle provided on the frame, a bridge disposed at the lower end of the frame, a printing belt that is wound around the adjustment dial and the bridge, and the like. It is. The main body case is composed of a main case and a cover cylinder that covers the outer surface of the main case. By opening the cover cylinder, the adjustment dial is exposed from the adjustment window of the main case, and the date of the printing unit is changed. it can. In order to prevent the cover cylinder from being inadvertently opened, the main body case is provided with a lock structure for restricting the opening of the cover cylinder.

例えば銀行などの金融機関においては、捺印日付の間違いや不正を防ぐために、特許文献２のような差込印を使用することが多い。差込印は、印判本体の下面にゴム印字体を備えており、ゴム印字体の中央部分に差換えコマを装填するための装着凹部が形成してある。年数字、月数字、日数字を印字する差換えコマは、捺印日付の変更を防ぐために、金庫などに保管して厳重に管理されており、始業時に管理責任者が差換えコマを差し換えたうえで、差込印を窓口の捺印担当者に渡している。 For example, a financial institution such as a bank often uses an insertion stamp as in Patent Document 2 in order to prevent an error or fraud in the stamp date. The insertion stamp includes a rubber printing body on the lower surface of the stamp body, and a mounting recess for loading a replacement frame is formed in the central portion of the rubber printing body. Replacement frames that print year numbers, month numbers, and day numbers are strictly managed by storing them in a safe, etc., in order to prevent changes in the stamping date. I give the plug seal to the person in charge of the seal at the counter.

本発明の日付印においては、本体ケースに日付の変更を防ぐ錠構造を組み込むが、錠構造を備えた印鑑は例えば特許文献３に公知である。そこでは、本体ケースの内部にダイヤル錠を設け、さらに、印面より突出する丸筒状の捺印阻止体を本体ケースに設けている。不使用状態においては、捺印阻止体をダイヤル錠でロックして、その突端面を印面より突出させて捺印を防止する。また、ダイヤル錠によるロックを解除して捺印阻止体をスライド操作すると、印面を開放して自由に捺印できる。 In the date stamp of the present invention, a lock structure that prevents the date from being changed is incorporated in the main body case. However, a seal stamp provided with a lock structure is known, for example, in Patent Document 3. In this case, a dial lock is provided inside the main body case, and further, a round cylindrical printing blocking body protruding from the marking surface is provided in the main body case. In a non-use state, the marking blocker is locked with a dial lock, and the protruding end surface protrudes from the marking surface to prevent the marking. Further, when the lock by the dial lock is released and the stamp blocker is slid, the stamp face can be opened and the stamp can be freely made.

特許文献４には、印鑑を専用のスタンドに起立姿勢で収容し、スタンドに設けた錠で印鑑を取り出し不能にロックできるようにした印鑑スタンドが開示してある。因みに、この印鑑スタンドは、特許文献３の印鑑と同様に、第三者による印鑑の不正捺印を防ぐことを目的としており、捺印日付の変更を防ぐものではない。 Patent Document 4 discloses a seal stand in which a seal is housed in a dedicated stand in an upright position and can be locked so that the seal cannot be taken out with a lock provided on the stand. Incidentally, the stamp stand is intended to prevent unauthorized stamping of a stamp by a third party, as with the stamp of Patent Document 3, and does not prevent the stamp date from being changed.

実公平０３−０５６３７２号公報（第３頁左欄４〜３９行、第２図）Japanese Utility Model Publication No. 03-056372 (page 3, left column, lines 4 to 39, FIG. 2) 特開２００７−００８１３６号公報（段落番号００２４〜００２５、図４）Japanese Patent Laying-Open No. 2007-008136 (paragraph numbers 0024 to 0025, FIG. 4) 特開２００６−０３５８３８号公報（段落番号００３２、図７）JP 2006-035838 A (paragraph number 0032, FIG. 7) 登録実用新案第３０６３４８２号公報（段落番号０００３、図２）Registered Utility Model No. 3063482 (paragraph number 0003, FIG. 2)

差換印は、捺印日付の間違いや不正を防ぐのに有効であるが、始業時の差換えコマの差し換え作業や、差換えコマの金庫からの出し入れなどに多くの手間が掛かり、管理が煩わしい。また、差換えコマの外形が小さいため紛失しやすく、さらに破損しやすい点に問題がある。 The replacement stamp is effective in preventing mistakes and frauds in the stamping date, but it takes a lot of time and labor to replace the replacement frame at the start of work and to put in and out the replacement frame from the safe. Moreover, since the outer shape of the replacement frame is small, there is a problem in that it is easily lost and easily damaged.

上記のような差換印の管理の煩わしさや、差換えコマの紛失などを解消するために、本発明者は印字ベルト式の日付印を、差換印の代わりに使用することを考えた。また、窓口の捺印担当者によって日付が意図的に変更されるのを防ぐために、本体ケースに組み込んだ錠構造を常に施錠状態にして、日付の変更を阻止することを考えた。 In order to solve the troublesome management of the replacement mark and the loss of the replacement frame as described above, the present inventor considered using a print belt type date stamp instead of the replacement mark. In addition, in order to prevent the date from being changed intentionally by the person in charge of stamping at the counter, the lock structure incorporated in the main body case was always locked to prevent the date from being changed.

因みに、特許文献３の錠構造は、本体ケースの内部空間の殆どをダイヤル錠が占めている。そのため、印字ベルト式の日付印において、本体ケースの内部に特許文献３のような錠構造を収容することは難しく、仮に本体ケース内に錠構造を収容できたとしても、日付印の外形が異常に大きくなり実用性に欠ける。 Incidentally, in the lock structure of Patent Document 3, the dial lock occupies most of the internal space of the main body case. For this reason, it is difficult to accommodate the lock structure as in Patent Document 3 in the main body case in the print belt type date stamp. Even if the lock structure can be accommodated in the main body case, the outer shape of the date stamp is abnormal. It becomes large and lacks practicality.

本発明の目的は、日付の変更を阻止する錠構造（ロック）が組み込んであって、錠構造を解錠しない限りは調整ダイヤルを回転操作して日付を変更できないロック付日付印を提供することにある。本発明の目的は、差換印に比べて保管および管理の手間を大幅に軽減でき、しかも差換えコマなどの印字要素の紛失などを一掃できるロック付日付印を提供することにある。 An object of the present invention is to provide a date stamp with a lock that incorporates a lock structure (lock) that prevents the date from being changed and cannot be changed by rotating the adjustment dial unless the lock structure is unlocked. It is in. An object of the present invention is to provide a date stamp with a lock that can greatly reduce the labor of storage and management as compared with a replacement stamp, and that can eliminate the loss of printing elements such as replacement frames.

本発明に係るロック付日付印は、複数本の印字ベルト２４と調整ダイヤル２２を備えた印字ユニット２が本体ケース１に収容してある。本体ケース１は、印字ユニット２を収容する主ケース４と、主ケース４の外面を覆うカバー筒５とで構成する。カバー筒５は、主ケース４の外面を覆う閉じ姿勢と、主ケース４の外面を開放する開放姿勢とに姿勢変更できるよう構成してあり、カバー筒５を開放姿勢にした状態において、調整ダイヤル２２を操作して印字ユニット２の日付を変更できる。カバー筒５が開放姿勢に切り換わるのを規制する錠構造を本体ケース１に設ける。 In the date stamp with lock according to the present invention, a printing unit 2 including a plurality of printing belts 24 and an adjustment dial 22 is accommodated in the main body case 1. The main body case 1 includes a main case 4 that accommodates the printing unit 2 and a cover cylinder 5 that covers the outer surface of the main case 4. The cover cylinder 5 is configured to be changeable between a closed attitude that covers the outer surface of the main case 4 and an open attitude that opens the outer surface of the main case 4. The date of the printing unit 2 can be changed by operating 22. The main body case 1 is provided with a lock structure that restricts the cover cylinder 5 from switching to the open position.

カバー筒５の開放を規制するロックリング３０を設ける。ロックリング３０は、ロック位置とロック解除位置とに変位できるよう本体ケース１で支持する。本体ケース１とロックリング３０との間に、ロックリング３０がロック解除状態に切り換わるのを防ぐ錠構造を設ける。 A lock ring 30 for restricting the opening of the cover cylinder 5 is provided. The lock ring 30 is supported by the main body case 1 so that it can be displaced between a lock position and an unlock position. A lock structure is provided between the main body case 1 and the lock ring 30 to prevent the lock ring 30 from switching to the unlocked state.

ロックリング３０の周囲に収容部３３を設ける。錠構造は、収容部３３の内部に収容されて、ロック位置におけるロックリング３０の切り換え操作を規制する錠止片３５と、錠止片３５を錠止位置へ向かって移動付勢する錠止ばね３６と、収容部３３に臨む本体ケース１の周面に設けられる解錠ガイド３８とを含む。錠止片３５は、解錠ガイド３８で係合案内される錠体４０を備えていて、収容部３３で錠止位置と解錠位置とに変位可能に案内してある。錠止片３５を鍵体４５で解錠位置へ変位させた状態において、錠体４０が解錠ガイド３８と係合可能な状態になって、ロックリング３０をロック解除位置へ変位操作できるようにする。 An accommodating portion 33 is provided around the lock ring 30. The lock structure is housed inside the housing portion 33, and a lock piece 35 that restricts the switching operation of the lock ring 30 at the lock position, and a lock spring that moves and urges the lock piece 35 toward the lock position. 36 and an unlocking guide 38 provided on the peripheral surface of the main body case 1 facing the housing portion 33. The locking piece 35 includes a lock body 40 that is engaged and guided by an unlocking guide 38, and is guided by the housing portion 33 so as to be displaceable between a locking position and an unlocking position. In a state in which the locking piece 35 is displaced to the unlocking position by the key body 45, the locking body 40 is brought into an engageable state with the unlocking guide 38 so that the lock ring 30 can be displaced to the unlocking position. To do.

ロックリング３０の周囲複数箇所に収容部３３を設けて、各収容部３３に錠構造を配置する。各収容部３３に臨む解錠溝３８の形成高さ位置を異ならせる。鍵体４５は、鍵本体４６と、鍵本体４６の端面に突設される複数個の鍵片４７とを備えている。鍵片４７の突出寸法を、各収容部３３に臨む解錠溝３８の形成高さ位置の違いに応じて大小に異ならせる。 The housing portions 33 are provided at a plurality of locations around the lock ring 30, and a lock structure is disposed in each housing portion 33. The formation height position of the unlocking groove 38 facing each storage portion 33 is varied. The key body 45 includes a key body 46 and a plurality of key pieces 47 protruding from the end surface of the key body 46. The protruding dimension of the key piece 47 is made different depending on the difference in the height position of the unlocking groove 38 facing each storage portion 33.

錠止片３５の下面に、鍵片４７と係合する鍵穴５０を形成し、各錠止片３５における鍵穴５０の形状と穴深さとの少なくともいずれか一方を異ならせる。 A key hole 50 that engages with the key piece 47 is formed on the lower surface of the locking piece 35, and at least one of the shape and the hole depth of the key hole 50 in each locking piece 35 is made different.

錠止ばね３６をつづら折り状に形成する。錠止片３５と錠止ばね３６とは、プラスチック材を素材にして一体に成形する。 The lock spring 36 is formed in a folded shape. The locking piece 35 and the locking spring 36 are integrally formed of a plastic material.

錠構造は、鍵穴がカバー筒５の外面に露出する状態で、カバー筒５に組み付けられる錠ユニット５１と、錠ユニット錠５１の出力軸５４に固定される錠止体５２と、錠止体５２が係脱するロックピース５３とを含んで構成することができる。ロックピース５３は、錠ユニット５１に臨む主ケース４の上部に設ける。錠止体５２をロックピース５３に係合させて、カバー筒５が開放姿勢に切り換わるのを規制する。 The lock structure includes a lock unit 51 assembled to the cover cylinder 5 with the keyhole exposed on the outer surface of the cover cylinder 5, a lock body 52 fixed to the output shaft 54 of the lock unit lock 51, and a lock body 52. And a lock piece 53 that engages and disengages. The lock piece 53 is provided on the upper part of the main case 4 facing the lock unit 51. The locking body 52 is engaged with the lock piece 53 to restrict the cover cylinder 5 from being switched to the open posture.

錠構造は、以下のように構成することができる。カバー筒５の周壁の一部を構成する窓板６０を、カバー筒５で揺動開閉可能に支持する。窓板６０の内面に、下方の解錠位置と上方の錠止位置とにスライド変位して、錠止位置において主ケース４の調整窓７の上開口縁に下方から係合する錠止片６２を設ける。窓板６０の外面に、錠止片６２をスライド操作する操作つまみ６３と、錠止片６２の解錠スライド動作を規制する錠ユニット６５とを設ける。錠止片６２の解錠スライド動作を錠ユニット６５で規制して、カバー筒５が開放姿勢に切り換わるのを規制する。 The lock structure can be configured as follows. A window plate 60 constituting a part of the peripheral wall of the cover cylinder 5 is supported by the cover cylinder 5 so as to be swingable and openable. A locking piece 62 is slidably displaced on the inner surface of the window plate 60 to a lower unlocking position and an upper locking position, and engages with the upper opening edge of the adjustment window 7 of the main case 4 from below at the locking position. Is provided. On the outer surface of the window plate 60, an operation knob 63 for sliding the locking piece 62 and a lock unit 65 for restricting the unlocking / sliding operation of the locking piece 62 are provided. The unlocking slide operation of the locking piece 62 is restricted by the locking unit 65, and the cover cylinder 5 is restricted from switching to the open posture.

本発明においては、複数本の印字ベルト２４を備えた印字ユニット２が本体ケース１内に収容してある日付印において、錠構造を本体ケース１に設けて、カバー筒５が開放姿勢に切り換わるのを規制できるようにした。このように、カバー筒５が開放姿勢に切り換えられるのを錠構造で規制すると、錠構造を鍵体４５で解錠しない限りはカバー筒５を開放できないので、調整ダイヤル２２を回転操作して日付を変更することができない。 In the present invention, the lock structure is provided in the main body case 1 and the cover cylinder 5 is switched to the open position at the date stamp that the printing unit 2 including the plurality of print belts 24 is accommodated in the main body case 1. I was able to regulate. In this way, if the cover cylinder 5 is restricted from being switched to the open position by the lock structure, the cover cylinder 5 cannot be opened unless the lock structure is unlocked by the key body 45. Can not be changed.

したがって、本発明のロック付日付印によれば、印字ベルト２４を印字要素とする日付印であるにもかかわらず、管理責任者ではない使用者が日付を変更するのを確実に防止できる。管理責任者は、鍵体４５のみを管理すればよいので、従来の差換印に比べて保管および管理の手間を大幅に軽減できる。また、調整ダイヤル２２を回転して日付の変更を行なえるので、従来の差換印において不可欠であった差換えコマなどの印字要素を取り扱う必要がなく、日付の変更をより少ない手間で簡便に行なえる。さらに、差換えコマの紛失などを一掃できる。 Therefore, according to the date stamp with a lock of the present invention, it is possible to reliably prevent a user who is not a manager from changing the date even though the date stamp has the print belt 24 as a printing element. Since the person in charge of management only has to manage the key body 45, the labor of storage and management can be greatly reduced compared to the conventional replacement seal. Further, since the date can be changed by rotating the adjustment dial 22, there is no need to handle a printing element such as a replacement frame, which is indispensable in the conventional replacement stamp, and the date can be easily changed with less effort. The In addition, lost replacement frames can be cleared.

ロックリング３０と本体ケース１との間に錠構造を設けるロック付日付印によれば、ロックリング３０のロック機能を利用してカバー筒５の開放を規制できるので、ロックリング３０が回転するか否かによって、錠構造が施錠状態にあるか否かを確認できる。これにより、捺印日付を変更したのち錠構造が施錠されていることを確認したうえで、ロック付日付印を捺印担当者に手渡すことができるので、勘違いによるロック付日付印の管理ミスを避けることができる。また、錠構造は、ロックリング３０の回転を阻止できる構造であればよいので、他の部位に設ける場合に比べて錠構造を簡素化できる利点もある。 According to the date stamp with a lock that provides a lock structure between the lock ring 30 and the main body case 1, it is possible to regulate the opening of the cover cylinder 5 using the lock function of the lock ring 30, so that the lock ring 30 rotates. Whether or not the lock structure is in a locked state can be confirmed depending on whether or not. As a result, after confirming that the lock structure is locked after changing the seal date, the lock date stamp can be handed over to the person in charge of the seal, so avoid mismanagement of the date stamp with lock. Can do. Moreover, since the lock structure should just be a structure which can prevent rotation of the lock ring 30, there also exists an advantage which can simplify a lock structure compared with the case where it provides in another site | part.

錠止片３５と、錠止ばね３６と、解錠ガイド３８などで錠構造を構成したロック付日付印においては、錠止片３５を鍵体４５で操作して、錠体４０と解錠ガイド３８とが係合可能な状態にならない限りは、ロックリング３０をロック解除できない。また、錠止片３５は収容部３３に配置されていて、解錠ガイド３８と錠止片３５との位置関係を外部から確認することは極めて困難である。したがって、正規の鍵体４５を使用しない限りはロックリング３０をロック解除できず、不正な鍵や工具等による錠構造の解錠の試みを困難化して、ロック付日付印の防犯上の信頼性を向上できる。また、ロックリング３０を利用して、その周囲に設けた収容部３３に錠止片３５と錠止ばね３６を配置するので、錠構造を付加しているにもかかわらず、ロック付日付印が大形化するのを避けてコンパクト化できる。 In the date stamp with a lock having a locking structure constituted by the locking piece 35, the locking spring 36, the unlocking guide 38, etc., the locking piece 35 is operated by the key body 45, so that the locking body 40 and the unlocking guide are provided. The lock ring 30 cannot be unlocked unless it can be engaged with 38. Further, the locking piece 35 is disposed in the accommodating portion 33, and it is extremely difficult to confirm the positional relationship between the unlocking guide 38 and the locking piece 35 from the outside. Therefore, unless the regular key body 45 is used, the lock ring 30 cannot be unlocked, making it difficult to unlock the lock structure with an unauthorized key, tool, etc. Can be improved. In addition, since the locking piece 35 and the locking spring 36 are arranged in the housing portion 33 provided around the lock ring 30 using the lock ring 30, the date stamp with the lock is displayed even though the lock structure is added. It can be made compact by avoiding upsizing.

ロックリング３０の周囲複数箇所に収容部３３を設けて、各収容部３３に錠構造を配置する日付印によれば、各収容部３３に臨む解錠溝３８の形成高さ位置を異ならせておくことにより、鍵体４５の鍵違い数を増加できる。したがって、１個の鍵体４５で複数の日付印の錠構造が開錠されるのを防いで、捺印日付が不正に変更されるのをさらに確実に防止できる。鍵体４５の鍵違い数が多い分だけ、錠止片３５の不正解錠を困難化できる。 According to the date stamp which provides the accommodating part 33 in multiple places around the lock ring 30 and arranges the lock structure in each accommodating part 33, the formation height position of the unlocking groove 38 facing each accommodating part 33 is varied. Thus, the number of key differences of the key body 45 can be increased. Therefore, the lock structure of a plurality of date stamps can be prevented from being unlocked by one key body 45, and the improper change of the stamp date can be further reliably prevented. Unauthorized unlocking of the locking piece 35 can be made difficult as much as the number of key differences of the key body 45 is large.

錠止片３５の下面に鍵片４７と係合する鍵穴５０を形成し、その形状と穴深さとの少なくともいずれか一方を異ならせる日付印によれば、上記の鍵違いに加えて、さらに多くの鍵違い数を実現して、不正な鍵の使用や、不正な解錠の試みを困難化できる。したがって、ロック付日付印の防犯性を向上して、捺印日付の信頼性をさらに向上できる。 According to the date stamp which forms the key hole 50 which engages with the key piece 47 in the lower surface of the locking piece 35 and changes at least one of the shape and the hole depth, in addition to the above key difference, more By realizing the number of key differences, it is possible to make it difficult to use an unauthorized key or to attempt unauthorized unlocking. Therefore, the security of the date stamp with lock can be improved, and the reliability of the stamp date can be further improved.

錠止ばね３６をつづら折り状に形成すると、ロックリング３０の収容部３３の膨出寸法を小さくできる、したがって、錠止ばね３６がコイルばねで形成してある場合に比べて、ロック付日付印の外形寸法をより小さなものにしてコンパクト化でき、その保管スペースを小さくできる。また、突出寸法が小さい分だけ収容部３３が捺印の邪魔になるのを軽減して、ロック付日付印の扱いやすさを向上できる。 When the lock spring 36 is formed in a zigzag shape, the bulging dimension of the accommodating portion 33 of the lock ring 30 can be reduced. Therefore, compared with the case where the lock spring 36 is formed of a coil spring, The external dimensions can be made smaller and compact, and the storage space can be reduced. In addition, it is possible to improve the ease of handling of the date stamp with lock by reducing the amount of the protrusion 33 from becoming a hindrance to the seal by the small projection size.

つづら折り状に形成した錠止ばね３６を錠止片３５と一体に成形すると、錠構造の構成部品点数を減すことができ、さらに組立の手間を省いて、ロック付日付印の製造に要するコストを削減できる。 When the lock spring 36 formed in a zigzag fold shape is formed integrally with the lock piece 35, the number of components of the lock structure can be reduced, and the cost of manufacturing a date stamp with a lock can be reduced by eliminating the assembly work. Can be reduced.

錠ユニット５１と、錠止体５２と、ロックピース５３などで構成した錠構造によれば、錠ユニット５１を施錠し、あるいは解錠するだけで、カバー筒５の不正な開放を阻止し、あるいは開放できるので、捺印日付の変更をより少ない手間で迅速に行なえる。また、ロックリング３０を備えていない日付印であっても、カバー筒５が開放操作されるのを錠構造で確実に阻止できる。施錠状態においては、錠止体５２を主ケース４に固定したロックピース５３に係合して、カバー筒５が開放姿勢に切り換わるのを規制するので、錠構造を付加することに伴なう日付印の構造変更が僅かで済み、より多くの既存部品を利用してロック付日付印を低コストで製造できる。 According to the lock structure composed of the lock unit 51, the lock body 52, the lock piece 53 and the like, the lock cylinder 51 can be locked or unlocked to prevent unauthorized opening of the cover cylinder 5, or Since it can be opened, the stamp date can be changed quickly with less effort. Further, even when the date mark is not provided with the lock ring 30, the cover cylinder 5 can be reliably prevented from being opened by the lock structure. In the locked state, the lock body 52 is engaged with the lock piece 53 fixed to the main case 4 to restrict the cover cylinder 5 from being switched to the open position, which is accompanied by the addition of the lock structure. The structure of the date stamp can be changed little, and the date stamp with lock can be manufactured at a low cost by using more existing parts.

揺動開閉可能な窓板６０に錠止片６２と操作つまみ６３と錠ユニット６５を組み付けた錠構造によれば、錠ユニット６５を施錠し、あるいは解錠するだけで、カバー筒５の不正な開放を阻止し、あるいは開放できるので、捺印日付の変更をより少ない手間で迅速に行なえる。また、上記の錠構造と同様に、ロックリング３０を備えていない日付印であっても、カバー筒５が開放操作されるのを錠構造で確実に阻止できる。さらに、窓板６０に錠構造の全ての構成部品を組み付け、錠止片６２を主ケース４の調整窓７の上開口縁に係合してカバー筒５の不正開放を規制するので、ロック付日付印の構造変更をカバー筒５のみに限定できる利点もある。 According to the lock structure in which the lock piece 62, the operation knob 63, and the lock unit 65 are assembled to the swingable window plate 60, the cover cylinder 5 can be illegally locked simply by locking or unlocking the lock unit 65. Since the opening can be prevented or released, the stamping date can be changed quickly with less effort. Similarly to the above-described lock structure, even when the date mark is not provided with the lock ring 30, the lock structure can surely prevent the cover cylinder 5 from being opened. Further, all the components of the lock structure are assembled to the window plate 60, and the locking piece 62 is engaged with the upper opening edge of the adjustment window 7 of the main case 4 to restrict unauthorized opening of the cover cylinder 5. There is also an advantage that the structure of the date stamp can be limited to the cover cylinder 5 only.

錠構造を鍵体で開錠した状態の日付印の縦断面図である。It is a longitudinal cross-sectional view of the date stamp of the state which unlocked the lock structure with the key body. 日付印の縦断側面図である。It is a vertical side view of a date stamp. 日付印の縦断正面図である。It is a vertical front view of a date stamp. カバー筒を開放した状態の日付印の正面図である。It is a front view of a date stamp in a state where a cover tube is opened. 図３におけるＡ−Ａ線断面図である。It is the sectional view on the AA line in FIG. ロックリングをロック解除した状態の横断平面図である。It is a cross-sectional top view of the state which unlocked the lock ring. 日付印および鍵体の斜視図である。It is a perspective view of a date stamp and a key body. 図５におけるＢ−Ｂ線断面図である。It is the BB sectional view taken on the line in FIG. 受凹部および解錠溝の構造を示す斜視図である。It is a perspective view which shows the structure of a receiving recessed part and an unlocking groove | channel. 錠止片の別の実施例を示す要部の断面図である。It is sectional drawing of the principal part which shows another Example of a locking piece. 錠止片のさらに別の実施例を示す要部のみの縦断面図である。It is a longitudinal cross-sectional view of only the principal part which shows another Example of a locking piece. 錠構造の別の実施例を示す縦断側面図である。It is a vertical side view which shows another Example of a lock | rock structure. 図１２におけるＣ−Ｃ線矢示図である。It is a CC arrow directional view in FIG. 錠構造のさらに別の実施例を示す縦断側面図である。It is a vertical side view which shows another Example of a lock | rock structure. 錠構造のさらに別の実施例を示す概念図である。It is a conceptual diagram which shows another Example of a lock | rock structure.

図１ないし図９は本発明に係るロック付日付印の実施例を示す。図２および図３においてロック付日付印は、本体ケース１と、本体ケース１の内部に収容される印字ユニット２と、本体ケース１の下端面に配置される固定印字体３と、図示していない印面キャップなどで構成する。 1 to 9 show an embodiment of a date stamp with a lock according to the present invention. 2 and 3, the date stamp with a lock is illustrated with a main body case 1, a printing unit 2 accommodated in the main body case 1, and a fixed printing body 3 disposed on the lower end surface of the main body case 1. Consists of no stamp cap etc.

本体ケース１は、印字ユニット２を収容する主ケース４と、主ケース４の外面を覆うカバー筒５とで構成してある。主ケース４は、有底筒状のプラスチック成形品からなり、その筒壁の上下中途部に、印字ユニット２の調整ダイヤル２２を露出させるための一対の調整窓７が開口され、両調整窓７の間の筒壁外面に、カバー筒５を開閉案内する平坦なガイド部８が設けてある。ガイド部８には断面Ｔ字状のガイドリブ９が一体に形成してある。また、主ケース４の底壁には、印字ベルト２４を、固定印字体３から出し入れするための出退口１０が開口してある。調整窓７より下側には、後述するロックリング３０を組み付けるためのベース筒１１と、印面キャップを圧嵌係合するための連結筒１２とが設けてある。 The main body case 1 includes a main case 4 that accommodates the printing unit 2 and a cover cylinder 5 that covers the outer surface of the main case 4. The main case 4 is formed of a bottomed cylindrical plastic molded product, and a pair of adjustment windows 7 for exposing the adjustment dial 22 of the printing unit 2 are opened in the middle of the cylinder wall. A flat guide portion 8 for opening and closing the cover cylinder 5 is provided on the outer surface of the cylinder wall between the two. The guide portion 8 is integrally formed with a guide rib 9 having a T-shaped cross section. The bottom wall of the main case 4 is provided with an exit / retreat port 10 for taking the print belt 24 in and out of the fixed print body 3. Below the adjustment window 7, there are provided a base cylinder 11 for assembling a lock ring 30 to be described later, and a connecting cylinder 12 for press-fitting engagement with the stamp cap.

カバー筒５は、下向きに開口する有底筒状のプラスチック成形品からなり、その筒壁の前後に先のガイドリブ９で案内されるスライド溝１４が筒下端から上向きに形成され、スライド溝１４の下端両側にロック爪１５が形成してある。カバー筒５の上端壁には、印字ユニット２の印面高さを調整する調整ねじ１６がねじ込んである。 The cover cylinder 5 is formed of a bottomed cylindrical plastic molded product that opens downward, and slide grooves 14 guided by the previous guide ribs 9 are formed on the front and rear of the cylinder wall upward from the bottom end of the cylinder. Lock claws 15 are formed on both sides of the lower end. An adjustment screw 16 for adjusting the height of the printing surface of the printing unit 2 is screwed into the upper end wall of the cover cylinder 5.

カバー筒５を主ケース４に外嵌して、そのスライド溝１４をガイドリブ９でスライド案内することにより、カバー筒５は、主ケース４の外面を覆う閉じ姿勢（図２に示す状態）と、主ケース４の調整窓７の外面を開放する開放姿勢（図４に示す状態）とに姿勢変更できる。カバー筒５を開放姿勢にした状態においては、印字ユニット２の調整ダイヤル２２を調整窓７から露出させることができ、この状態で印字ベルト２４を回転操作することにより印字ユニット２の日付を変更できる。 The cover cylinder 5 is externally fitted to the main case 4, and the slide groove 14 is slid and guided by the guide ribs 9, so that the cover cylinder 5 has a closed posture (the state shown in FIG. 2) covering the outer surface of the main case 4. The posture can be changed to an open posture (a state shown in FIG. 4) in which the outer surface of the adjustment window 7 of the main case 4 is opened. When the cover cylinder 5 is in the open position, the adjustment dial 22 of the printing unit 2 can be exposed from the adjustment window 7, and the date of the printing unit 2 can be changed by rotating the printing belt 24 in this state. .

印字ユニット２は、門形のフレーム２０と、その対向壁で支持したダイヤル軸２１と、ダイヤル軸２１で支持した６個の調整ダイヤル２２と、フレーム２０の下端に装着されるブリッジ２３と、調整ダイヤル２２およびブリッジ２３に巻き掛けられる６個の無端状の印字ベルト２４などで構成する。印字ユニット２は、主ケース４とブリッジ２３との間に配置したばね２５で押し上げ付勢してあり、カバー筒５を開放姿勢にすると、全体がばね２５で押し上げられて調整ダイヤル２２を調整窓７から露出させることができる。印字ベルト２４には、年号数字と、月数字と、日数字を印字する字母ブロックが一定間隔おきに設けてある。固定印字体３は、印面ホルダー２６と、印面ホルダー２６に接着固定したゴム印字体２７とで構成してあり、その中央に印字ベルト２４の字母ブロックを出し入れするための印字窓２８が開口してある。 The printing unit 2 includes a gate-shaped frame 20, a dial shaft 21 supported by its opposing wall, six adjustment dials 22 supported by the dial shaft 21, a bridge 23 attached to the lower end of the frame 20, and adjustment It is composed of six endless print belts 24 wound around the dial 22 and the bridge 23. The printing unit 2 is pushed up and biased by a spring 25 disposed between the main case 4 and the bridge 23. When the cover cylinder 5 is brought into an open position, the whole is pushed up by the spring 25 and the adjustment dial 22 is moved to the adjustment window. 7 can be exposed. The printing belt 24 is provided with letter blocks for printing year numbers, month numbers, and day numbers at regular intervals. The fixed print body 3 is composed of a stamp face holder 26 and a rubber print body 27 adhered and fixed to the mark face holder 26, and a print window 28 for opening and removing the letter block of the print belt 24 is opened at the center thereof. .

カバー筒５を下方の閉じ姿勢においてロック保持するために、ベース筒１１の外面にロックリング３０を組み付けて、カバー筒５の開放操作を規制している。ロックリング３０は、上下面が開口する円形のリングからなり、その内面の対向位置に一対のリング支持爪３１と、ロック爪１５と係合する一対のロック片３２が形成してある（図６参照）。また、ロックリング３０の周面の対向位置に下向きに開口する収容部３３が膨出形成してある。ロックリング３０をベース筒１１の下面側から装着し、そのリング支持爪３１をベース筒１１の外面に設けた支持溝３４に係合することにより、ロックリング３０の全体が、ロック位置とロック解除位置との間を回転できるように主ケース４で支持される。 In order to lock and hold the cover cylinder 5 in the downward closed position, a lock ring 30 is assembled to the outer surface of the base cylinder 11 to restrict the opening operation of the cover cylinder 5. The lock ring 30 is formed of a circular ring whose upper and lower surfaces are open, and a pair of ring support claws 31 and a pair of lock pieces 32 that engage with the lock claws 15 are formed at opposing positions on the inner surface (FIG. 6). reference). In addition, an accommodating portion 33 that opens downward is formed at a position facing the peripheral surface of the lock ring 30 so as to bulge out. The lock ring 30 is mounted from the lower surface side of the base cylinder 11, and the ring support claw 31 is engaged with the support groove 34 provided on the outer surface of the base cylinder 11, so that the entire lock ring 30 is locked and unlocked. It is supported by the main case 4 so that it can rotate between positions.

図５に示すように、ロックリング３０をロック位置に位置させた状態では、ロック片３２がカバー筒５のロック爪１５の上面を受け止めている。そのため、カバー筒５を開放姿勢にスライド操作することはできず、閉じ姿勢に位置保持できる。また、図６に示すように、ロックリング３０を想像線で示すロック位置から、実線で示すロック解除位置へ回転操作すると、ロック片３２がカバー筒５のロック爪１５の上面から周方向へ離脱するので、カバー筒５を上方へスライド操作して開放姿勢に変位することができる。カバー筒５を閉じ姿勢に戻したのち、ロックリング３０をロック位置へ戻すと、再びカバー筒５を開放不能にロック保持できる。 As shown in FIG. 5, in a state where the lock ring 30 is positioned at the lock position, the lock piece 32 receives the upper surface of the lock claw 15 of the cover cylinder 5. Therefore, the cover cylinder 5 cannot be slid to the open position and can be held in the closed position. Further, as shown in FIG. 6, when the lock ring 30 is rotated from the locked position indicated by the imaginary line to the unlocked position indicated by the solid line, the lock piece 32 is detached from the upper surface of the lock claw 15 of the cover cylinder 5 in the circumferential direction. Therefore, the cover cylinder 5 can be slid upward to be displaced to the open posture. When the cover cylinder 5 is returned to the closed position and then the lock ring 30 is returned to the locked position, the cover cylinder 5 can be locked and held again so that it cannot be opened.

この実施例では、本体ケース１とロックリング３０との間に、ロックリング３０がロック解除位置に切り換えられるのを防ぐ錠構造を設けて、印字ユニット２の日付が管理者以外の使用者によって変更されるのを防止できるようにした。図８において錠構造は、ロックリング３０の収容部３３に収容される錠止片３５、および錠止片３５を押し下げ付勢する錠止ばね３６と、収容部３３と対向するベース筒１１に凹み形成される受凹部３７、および受凹部３７に連続して周方向へ延びる解錠溝（解錠ガイド）３８などで構成する。錠止ばね３６は、ばね線材で形成した圧縮コイルばねからなる。各収容部３３の外面には固有の合マーク３９ａ・３９ｂが凹み形成してある（図７参照）。 In this embodiment, a lock structure is provided between the main body case 1 and the lock ring 30 to prevent the lock ring 30 from being switched to the unlock position, and the date of the printing unit 2 is changed by a user other than the administrator. It was made possible to prevent it from being done. In FIG. 8, the lock structure is recessed in the lock piece 35 accommodated in the accommodation portion 33 of the lock ring 30, the lock spring 36 that pushes and urges the lock piece 35, and the base cylinder 11 facing the accommodation portion 33. The receiving recess 37 is formed, and an unlocking groove (unlocking guide) 38 extending continuously in the circumferential direction is formed. The lock spring 36 is composed of a compression coil spring formed of a spring wire. Unique alignment marks 39a and 39b are formed in the outer surface of each housing portion 33 (see FIG. 7).

錠止片３５は内外周面が部分円弧状に湾曲する四辺形のプラスチック成形品からなり、その内側面に先の解錠溝３８で移行案内される湾曲リブ状の錠突起（錠体）４０を有し、上面に錠止ばね３６用のばね受ボス４１が形成してある。錠止片３５は収容部３３の内面で案内されて、下方の錠止位置（図８に示す状態）と、上方の解錠位置（図１に示す状態）との間を変位でき、常態においては、錠止ばね３６で錠止位置に押し下げ付勢されて収容部３３の底壁４２で受け止められている。この状態でロックリング３０を回転操作すると、錠止片３５がロックリング３０に同行して移動しようとするが、すぐに錠突起４０の周方向側端が収容部３３の内側面で受け止められるので、ロックリング３０を回転操作することはできない。先の底壁４２の中央には、後述する鍵片４６の出し入れを許す鍵開口４３が形成してある。 The locking piece 35 is formed of a quadrilateral plastic molded product whose inner and outer peripheral surfaces are curved in a partial arc shape, and a curved rib-shaped locking projection (locking body) 40 that is guided to move by the previous unlocking groove 38 on the inner surface thereof. And a spring receiving boss 41 for the lock spring 36 is formed on the upper surface. The locking piece 35 is guided by the inner surface of the accommodating portion 33 and can be displaced between a lower locking position (state shown in FIG. 8) and an upper unlocking position (state shown in FIG. 1). Is pushed down to the locking position by the locking spring 36 and received by the bottom wall 42 of the accommodating portion 33. When the lock ring 30 is rotated in this state, the locking piece 35 tries to move along with the lock ring 30, but the circumferential side end of the locking projection 40 is immediately received by the inner surface of the housing portion 33. The lock ring 30 cannot be rotated. A key opening 43 is formed in the center of the bottom wall 42 to allow a key piece 46 to be described later.

図９に示すように、受凹部３７は、錠止片３５の周方向の幅寸法より僅かに広幅に形成してあり、その凹部上壁より下側に解錠溝３８が形成してある。各収容部３３における解錠溝３８の高さ位置はそれぞれ異ならせてある。具体的には、図８に向かって左側の解錠溝３８は、受凹部３７の上端近くに形成し、図８に向かって右側の解錠溝３８は、受凹部３７の中途部に形成してある。このように、各解錠溝３８の形成位置を上下にずらすことにより、鍵体４５の鍵違い数をより多くすることができる。 As shown in FIG. 9, the receiving recess 37 is formed to be slightly wider than the circumferential width of the locking piece 35, and an unlocking groove 38 is formed below the upper wall of the recess. The height position of the unlocking groove 38 in each accommodating portion 33 is different. Specifically, the unlocking groove 38 on the left side in FIG. 8 is formed near the upper end of the receiving recess 37, and the unlocking groove 38 on the right side in FIG. 8 is formed in the middle of the receiving recess 37. It is. In this way, the number of key differences of the key body 45 can be increased by shifting the formation position of each unlocking groove 38 up and down.

一対の錠止片３５を同時に開錠操作するために鍵体４５が設けてある。図７に示すように、鍵体４５は、ベース筒１１の下方の連結筒１２に外嵌できるリング状の鍵本体４６と、鍵本体４６の上面（端面）に突設される２個の鍵片４７とで構成してある。鍵本体４６は金属性のリングで構成する。鍵片４７は金属製の矩形軸からなり、鍵本体４６の上面の装着穴に鍵片４７の下面の軸部４９を打ち込んで鍵本体４６と一体化してある。このように、鍵片４７を鍵本体４６とは別体に形成すると、複数種の鍵片４７を用意しておき、その組み合わせを変更することにより、容易に鍵違いを構成できる。 A key body 45 is provided to simultaneously unlock the pair of locking pieces 35. As shown in FIG. 7, the key body 45 includes a ring-shaped key body 46 that can be externally fitted to the connecting cylinder 12 below the base cylinder 11, and two keys that protrude from the upper surface (end surface) of the key body 46. It consists of a piece 47. The key body 46 is composed of a metallic ring. The key piece 47 is made of a metal rectangular shaft, and is integrated with the key body 46 by driving a shaft portion 49 on the lower surface of the key piece 47 into a mounting hole on the upper surface of the key body 46. As described above, when the key piece 47 is formed separately from the key body 46, a plurality of types of key pieces 47 are prepared, and the combination can be changed to easily configure a key difference.

鍵片４７の周方向の配置位置は、錠止片３５の周方向の配置位置に合致させてあり、鍵本体４６の上面から各鍵片４７の突端までの高さ（突出寸法）は、各解錠溝３８の高さに対応させてある。鍵本体４６の周面には、先の合マーク３９ａ・３９ｂに対応する合マーク４８ａ・４８ｂが形成してある。 The circumferential arrangement position of the key piece 47 is matched with the circumferential arrangement position of the locking piece 35, and the height (projection dimension) from the upper surface of the key body 46 to the protruding end of each key piece 47 is It corresponds to the height of the unlocking groove 38. Alignment marks 48 a and 48 b corresponding to the previous alignment marks 39 a and 39 b are formed on the peripheral surface of the key body 46.

鍵体４５は、管理責任者が所定の場所に保管して、その使用状況を管理する。始業時には、定置した鍵体４５のリング内面に日付印の下端の連結筒１２を差し込み、ロックリング３０の合マーク４８ａ・４８ｂと日付印側の合マーク３９ａ・３９ｂとが一致する状態で、日付印の全体を錠止ばね３６の付勢力に逆らって押し下げ操作する。あるいは、鍵体４５を押し上げ操作する。この状態では、鍵片４７が鍵開口４３から収容部３３内に入り込んで、各錠止片３５を受け止めている。そのため、図１に示すように、本体ケース１と各錠止片３５とは、互いに相対スライド変位して、収容部３３の底壁４２が鍵本体４６の上端で受け止められる。その結果、各錠止片３５の錠突起４０の高さが各解錠溝３８の高さに一致して、各解錠溝３８に対して出し入れ可能となる。 The key body 45 is stored in a predetermined place by the person in charge of management and manages the usage status. At the start of work, the connecting cylinder 12 at the lower end of the date stamp is inserted into the inner surface of the ring of the stationary key body 45, and the date mark side alignment marks 39a and 39b are aligned with the date mark side alignment marks 39a and 39b. The entire mark is pushed down against the urging force of the lock spring 36. Alternatively, the key body 45 is pushed up. In this state, the key piece 47 enters the accommodating portion 33 from the key opening 43 and receives each locking piece 35. Therefore, as shown in FIG. 1, the main body case 1 and each locking piece 35 are displaced relative to each other so that the bottom wall 42 of the accommodating portion 33 is received by the upper end of the key main body 46. As a result, the height of the locking projection 40 of each locking piece 35 matches the height of each unlocking groove 38, and can be inserted into and removed from each unlocking groove 38.

上記の状態を保持した状態のままで、カバー筒５および主ケース４を反時計回転方向へ回転操作することにより、図５に示すように、ロック片３２とロック爪１５との係合を解除して、ロックリング３０をロック解除状態に切り換えることができる。なお、カバー筒５および主ケース４を固定した状態で鍵体４５を時計回転方向へ回転操作する場合にも、同様にロックリング３０をロック解除状態に切り換えることができる。以後は、鍵体４５を日付印から分離することができ、鍵体４５を分離しても錠止片３５が錠止位置へ戻ることはない。 While maintaining the above state, the cover cylinder 5 and the main case 4 are rotated counterclockwise to release the engagement between the lock piece 32 and the lock claw 15 as shown in FIG. Thus, the lock ring 30 can be switched to the unlocked state. Even when the key body 45 is rotated in the clockwise direction while the cover cylinder 5 and the main case 4 are fixed, the lock ring 30 can be similarly switched to the unlocked state. Thereafter, the key body 45 can be separated from the date stamp, and even if the key body 45 is separated, the locking piece 35 does not return to the locking position.

ロックリング３０をロック解除操作したのち、図４に示すようにカバー筒５を開放位置へスライド操作すると、印字ユニット２の調整ダイヤル２２を調整窓７に臨ませることができる。この状態で、調整ダイヤル２２を回転操作して、日付に適合した印字ベルト２４の字母ブロックを選定する。カバー筒５を閉じ姿勢に戻して、ロックリング３０をロック位置へ戻すと、ロック片３２がロック爪１５と係合して、再びカバー筒５の開放移動を阻止する。 After the lock ring 30 is unlocked and the cover cylinder 5 is slid to the open position as shown in FIG. 4, the adjustment dial 22 of the printing unit 2 can face the adjustment window 7. In this state, the adjustment dial 22 is rotated to select the character block of the print belt 24 that matches the date. When the cover cylinder 5 is returned to the closed position and the lock ring 30 is returned to the lock position, the lock piece 32 engages with the lock claw 15 and again prevents the cover cylinder 5 from opening.

ロックリング３０がロック位置へ戻るのに同行して、錠止片３５が解錠溝３８から受凹部３７へと変位操作される。さらに、錠止片３５が受凹部３７の内部に入り込むのと同時に、錠止ばね３６の付勢力によって錠止片３５が押し下げられ、下方の錠止位置へと復帰する。以後、鍵体４５を使用して錠止片３５を開錠しない限りは、ロックリング３０をロック解除位置へ回転することはできない。 Accompanying the return of the lock ring 30 to the locked position, the locking piece 35 is displaced from the unlocking groove 38 to the receiving recess 37. Further, at the same time when the locking piece 35 enters the receiving recess 37, the locking piece 35 is pushed down by the urging force of the locking spring 36 and returns to the lower locking position. Thereafter, the lock ring 30 cannot be rotated to the unlocked position unless the locking piece 35 is unlocked using the key body 45.

一連の日付変更作業は管理責任者が行なってもよく、管理責任者が立ち会う状況下で捺印担当者が行なってもよい。因みに、鍵体４５が正規の鍵体でない場合には、錠止片３５と解錠溝３８の高さを一致させることができないので、ロックリング３０をロック解除位置へ回転することはできない。また、錠止片３５をドライバーなどで錠止ばね３６の付勢力に抗して単に押し込んだだけでは、錠止片３５が受凹部３７の上壁に受け止められるので、その場合にも錠止片３５と解錠溝３８の高さは一致せず、ロックリング３０をロック解除位置へ回転することはできない。このように、錠止片３５が解錠位置へ不正に操作されるのを防ぐために、解錠溝３８を受凹部３７の上壁より下方に位置させている。 A series of date changing operations may be performed by the manager in charge, or may be performed by the person in charge of stamping in a situation where the manager is present. Incidentally, when the key body 45 is not a regular key body, the height of the locking piece 35 and the unlocking groove 38 cannot be matched, and therefore the lock ring 30 cannot be rotated to the unlocked position. Further, when the locking piece 35 is simply pushed against the urging force of the locking spring 36 with a screwdriver or the like, the locking piece 35 can be received on the upper wall of the receiving recess 37, and in that case also the locking piece 35 35 and the height of the unlocking groove 38 do not match, and the lock ring 30 cannot be rotated to the unlocked position. Thus, the unlocking groove 38 is positioned below the upper wall of the receiving recess 37 in order to prevent the locking piece 35 from being illegally operated to the unlocked position.

以上のように本発明の日付印によれば、錠止片３５を正規の鍵体４５で解錠操作しない限りは、ロックリング３０をロック解除操作してカバー筒５を開放操作できないので、印字ベルト式の日付印であるにもかかわらず、管理責任者ではない使用者が日付印の日付を変更するのを確実に防止できる。また、印字ベルト２４の字母ブロックを選定することで日付の変更を行なえるので、従来の差換印に比べて、日付の変更をより少ない手間で簡便に行なえる。さらに、管理責任者は鍵体４５のみを管理すればよいので、差換えコマを管理する必要があった差換印に比べて、管理の手間を大幅に省くことができる。印字要素を紛失したり、破損するおそれもない。 As described above, according to the date stamp of the present invention, unless the locking piece 35 is unlocked with the regular key body 45, the lock ring 30 cannot be unlocked and the cover cylinder 5 cannot be opened. Despite the belt-type date stamp, it is possible to reliably prevent a user who is not a manager from changing the date stamp date. In addition, since the date can be changed by selecting the character block of the print belt 24, the date can be changed more easily and with less effort than the conventional replacement seal. Furthermore, since the person in charge of management only needs to manage the key body 45, the labor of management can be greatly reduced as compared with the replacement seal that required to manage the replacement frame. There is no risk of losing or damaging the print element.

図１０は、錠止体３５の別の実施例を示す。そこでは、錠止ばね３６をつづら折り状の板ばねで形成した。さらに、錠止ばね３６を錠止片３５と一体に成形して、錠構造の部品点数を減らすようにした。このように、錠止ばね３６をつづら折り状の樹脂ばねで形成すると、錠止ばねを圧縮コイルばねで構成する場合に比べて、錠止ばね３６が占めるスペース、とくにロックリング３０の径方向の占有スペースを小さくできる。これに伴ない、収容部３３の径方向の張り出し量を小さくして、その分だけロック付日付印の外形寸法を小さくしてコンパクト化できる。また、錠止ばね３６を錠止片３５と一体に形成することにより、組立の手間を省くことができるので、部品点数を削減することと相俟って、ロック付日付印の製造コストを削減できる。なお、上記以外の構造は先の実施例と同じであるので、同じ部材に同じ符号を付してその説明を省略する。以下の実施例においても同じとする。 FIG. 10 shows another embodiment of the locking body 35. In this case, the lock spring 36 is formed of a folded plate spring. Further, the lock spring 36 is formed integrally with the lock piece 35 to reduce the number of parts of the lock structure. In this way, when the lock spring 36 is formed of a zigzag-shaped resin spring, the space occupied by the lock spring 36, especially the radial occupancy of the lock ring 30, compared to the case where the lock spring is constituted by a compression coil spring. Space can be reduced. Along with this, the amount of overhang in the radial direction of the accommodating portion 33 can be reduced, and the external dimension of the date stamp with lock can be reduced by that amount, thereby making it compact. In addition, since the lock spring 36 is formed integrally with the lock piece 35, the assembling work can be saved, so that the manufacturing cost of the date stamp with the lock is reduced in combination with the reduction of the number of parts. it can. Since the structure other than the above is the same as that of the previous embodiment, the same reference numerals are assigned to the same members and the description thereof is omitted. The same applies to the following embodiments.

図１１は、錠止片３５の別の実施例を示す。そこでは、錠止片３５の下面に、鍵片４７と係合する鍵穴５０を形成する点が、先に説明した錠止片３５と異なる。この場合には、鍵片４７の断面形と鍵穴５０の断面形が一致し、さらに、鍵片４７の突出寸法が鍵穴５０の深さに適合した場合に限って、錠止片３５の錠突起４０の位置を解錠溝３８の形成位置に一致させることができる。したがって、個々の錠止片３５における鍵穴５０の断面形状と穴深さとの、少なくともいずれか一方を異ならせておくと、先に説明した鍵違い構造に加えて、さらに多様な鍵違い数を実現できる。なお、鍵穴５０の断面形状としては、円形、多角形、楕円形、Ｄ字形、鍵穴形など自由に選定できる。 FIG. 11 shows another embodiment of the locking piece 35. There, it differs from the locking piece 35 described above in that a key hole 50 that engages with the key piece 47 is formed on the lower surface of the locking piece 35. In this case, only when the cross-sectional shape of the key piece 47 and the cross-sectional shape of the key hole 50 match, and the protruding dimension of the key piece 47 matches the depth of the key hole 50, the lock protrusion of the lock piece 35 The position of 40 can be made coincident with the formation position of the unlocking groove 38. Therefore, if at least one of the cross-sectional shape and the hole depth of the key hole 50 in each locking piece 35 is made different, in addition to the key difference structure described above, a wider variety of key difference numbers can be realized. it can. In addition, as a cross-sectional shape of the keyhole 50, a circular shape, a polygonal shape, an elliptical shape, a D-shape, a keyhole shape, or the like can be freely selected.

図１２および図１３は錠構造の別の実施例を示す。そこでは、錠構造を小形のシリンダー錠（錠ユニット）５１と、錠止体５２と、ロックピース５３などで構成して、カバー筒５が開放姿勢に切り換えられるのを防止できるようにした。シリンダー錠５１は市販品からなり、そのケース部分をカバー筒５の上部に水平に固定して、鍵穴をカバー筒５の外面に露出させるようにした。錠止体５２はＬ字状の金具からなり、シリンダー錠５１の出力軸５４に対して同行回転可能に固定してある。ロックピース５３はプラスチック成形品からなり、主ケース４の上端の筒壁５５に固定してある。なお、この実施例における錠構造の鍵違いはシリンダー錠に依存する。 12 and 13 show another embodiment of the lock structure. In this case, the lock structure is composed of a small cylinder lock (lock unit) 51, a lock body 52, a lock piece 53, and the like, so that the cover cylinder 5 can be prevented from being switched to the open position. The cylinder lock 51 is a commercially available product, and its case portion is horizontally fixed to the upper portion of the cover cylinder 5 so that the keyhole is exposed to the outer surface of the cover cylinder 5. The locking body 52 is made of an L-shaped metal fitting, and is fixed to the output shaft 54 of the cylinder lock 51 so as to be able to rotate together. The lock piece 53 is made of a plastic molded product and is fixed to a cylindrical wall 55 at the upper end of the main case 4. The key difference in the lock structure in this embodiment depends on the cylinder lock.

シリンダー錠５１の鍵穴に差し込んだ鍵体４５を施錠位置へ回転すると、図１２に示すように、錠止体５２の係合片５６がロックピース５３の係合腕５７の下面に係合して、閉じ姿勢にしたカバー筒５の開放移動を阻止できる。また、鍵体４５を解錠位置へ回転すると、図１３に想像線で示すように、錠止体５２の係合片５６がロックピース５３の係合腕５７から分離するので、カバー筒５を閉じ姿勢から開放姿勢へ上方スライドできる。この状態で調整ダイヤル２２を操作して日付を変更する。このように、本発明に係る錠構造は、カバー筒５の開放を直接防止する形態を採用することができ、とくに、図１２および図１３で説明した錠構造は、ロックリング３０を備えていない日付印においてカバー筒５の開放を確実に規制できる。 When the key body 45 inserted into the key hole of the cylinder lock 51 is rotated to the locking position, the engagement piece 56 of the lock body 52 is engaged with the lower surface of the engagement arm 57 of the lock piece 53 as shown in FIG. The opening movement of the cover cylinder 5 in the closed position can be prevented. Further, when the key body 45 is rotated to the unlocked position, the engagement piece 56 of the lock body 52 is separated from the engagement arm 57 of the lock piece 53 as shown by an imaginary line in FIG. Slide upward from the closed position to the open position. In this state, the date is changed by operating the adjustment dial 22. Thus, the lock structure according to the present invention can adopt a form that directly prevents the cover cylinder 5 from being opened. In particular, the lock structure described with reference to FIGS. 12 and 13 does not include the lock ring 30. The opening of the cover cylinder 5 can be reliably regulated at the date stamp.

図１４は錠構造のさらに別の実施例を示す。そこでは、カバー筒５の周壁の一部に窓板６０を設け、窓板６０を軸６１の周りに揺動開閉可能にカバー筒５で支持した。窓板６０の内面上部には上下にスライドする錠止片６２を設け、これを窓板６０の外面に設けた操作つまみ６３で、下方の解錠位置と上方の錠止位置とにスライド操作できるようにした。窓板６０の外面にはケース６４が固定してあり、ケース６４で操作つまみ６３を上下スライド自在に案内支持している。ケース６４には、操作つまみ６３を介して錠止片６２の解錠スライド動作を規制する市販品の尾錠（錠ユニット）６５が設けてある。尾錠６５には、同錠の施錠動作および解錠動作に連動して部分回動する規制腕６６が設けてある。 FIG. 14 shows still another embodiment of the lock structure. In this case, a window plate 60 is provided on a part of the peripheral wall of the cover tube 5, and the window plate 60 is supported by the cover tube 5 so as to be swingable around a shaft 61. A locking piece 62 that slides up and down is provided on the upper inner surface of the window plate 60, and can be slid to a lower unlocking position and an upper locking position by an operation knob 63 provided on the outer surface of the window plate 60. I did it. A case 64 is fixed to the outer surface of the window plate 60, and the operation knob 63 is guided and supported by the case 64 so as to be slidable up and down. The case 64 is provided with a commercially available buckle (lock unit) 65 that regulates the unlocking and sliding operation of the locking piece 62 via the operation knob 63. The buckle 65 is provided with a restricting arm 66 that partially rotates in conjunction with the locking and unlocking operations of the lock.

尾錠６５を施錠した状態においては規制腕６６の上端で操作つまみ６３の下面を受け止めて、錠止片６２の下方へのスライド（解錠スライド動作）を規制できる。また、尾錠６５を解錠した状態においては、規制腕６６の上部が操作つまみ６３の下方スライド領域から退避するので、操作つまみ６３および錠止片６２を自由に下方スライドできる。 In a state where the buckle 65 is locked, the lower surface of the operation knob 63 is received by the upper end of the restricting arm 66, and the downward sliding (unlocking sliding operation) of the locking piece 62 can be restricted. In addition, when the buckle 65 is unlocked, the upper portion of the restricting arm 66 is retracted from the lower slide area of the operation knob 63, so that the operation knob 63 and the locking piece 62 can be freely slid downward.

窓板６０を閉じ姿勢にし、さらに操作つまみ６３で錠止片６２を錠止位置へスライド操作すると、錠止片６２の上端に設けた係合爪６７が、主ケース４の調整窓７の上開口縁７ａの内面に下方から係合して、カバー筒５の開放方向への移動を阻止できる。この状態で鍵体４５を尾錠６５の鍵穴に差し込んで施錠位置に回転することにより、規制腕６６が操作つまみ６３の下面を受け止めるので、錠止片６２の下方へのスライドを規制できる。また、鍵体４５を解錠位置へ回転操作すると、規制腕６６が尾錠６５に連動して部分回動し、操作つまみ６３の下方スライド領域から退避する。 When the window plate 60 is closed, and the locking piece 62 is slid to the locking position with the operation knob 63, the engaging claw 67 provided at the upper end of the locking piece 62 is located above the adjustment window 7 of the main case 4. The cover cylinder 5 can be prevented from moving in the opening direction by engaging with the inner surface of the opening edge 7a from below. In this state, by inserting the key body 45 into the key hole of the buckle 65 and rotating it to the locking position, the restricting arm 66 receives the lower surface of the operation knob 63, so that the downward sliding of the locking piece 62 can be restricted. When the key body 45 is rotated to the unlocking position, the restricting arm 66 partially rotates in conjunction with the buckle 65 and retracts from the lower slide area of the operation knob 63.

したがって、操作つまみ６３および錠止片６２を下方へスライドして、係合爪６７と筒壁５５との係合を解除でき、さらに窓板６０を開放操作することにより、カバー筒５を閉じ姿勢から開放姿勢に切り換えることができる。この状態で調整ダイヤル２２を操作して日付を変更する。この実施例における錠構造も、ロックリング３０を備えていない日付印においてカバー筒５の開放を確実に規制できる。 Accordingly, the operation knob 63 and the locking piece 62 can be slid downward to disengage the engagement claw 67 from the cylinder wall 55, and the cover cylinder 5 is closed by opening the window plate 60. Can be switched to an open position. In this state, the date is changed by operating the adjustment dial 22. The lock structure in this embodiment can also reliably restrict the opening of the cover cylinder 5 at the date stamp that does not include the lock ring 30.

上記の各実施例では、錠構造をロックリング３０と主ケース４との間、あるいはカバー筒５と主ケース４との間に設けたが、その必要はなく、図１５に示すようにカバー筒５とロックリング３０との間に錠構造を設けることができる。そこでは、カバー筒５の外面に錠室７０を設け、その内部に市販品の尾錠（錠ユニット）７１と、ロックピン（錠体）７２と、尾錠７１の部分回転動作を上下動作に変換してロックピン７２に伝動する第１アーム７３および第２アーム７４を収容した。また、ロックリング３０の上面にはロック穴（解錠ガイド）７５を設け、このロック穴７５にロックピン７２を係脱できるようにした。 In each of the above embodiments, the lock structure is provided between the lock ring 30 and the main case 4 or between the cover cylinder 5 and the main case 4, but this is not necessary, and as shown in FIG. A lock structure can be provided between 5 and the lock ring 30. In this case, a lock chamber 70 is provided on the outer surface of the cover cylinder 5, and a commercially available buckle (lock unit) 71, lock pin (lock body) 72, and partial rotation operation of the buckle 71 are converted into vertical movements. The first arm 73 and the second arm 74 that are transmitted to the lock pin 72 are accommodated. In addition, a lock hole (unlock guide) 75 is provided on the upper surface of the lock ring 30 so that the lock pin 72 can be engaged and disengaged from the lock hole 75.

尾錠７１を施錠した状態においては、ロックピン７２がロック穴７５に係合して、ロックリング３０がロック解除方向へ回転操作されるのを阻止する。また、尾錠７１を解錠した状態においては、ロックピン７２がロック穴７５から離脱するので、ロックリング３０をロック解除操作してカバー筒５を開放姿勢にスライドできる。 When the buckle 71 is locked, the lock pin 72 engages with the lock hole 75 to prevent the lock ring 30 from being rotated in the unlocking direction. Further, when the buckle 71 is unlocked, the lock pin 72 is detached from the lock hole 75, so that the lock cylinder 30 can be unlocked and the cover cylinder 5 can be slid to the open position.

図１から図９で説明した実施例では、錠止片３５が、下方の錠止位置と上方の解錠位置とに変位できるようにしたが、その必要はなく、錠止片３５は上方の錠止位置と下方の解錠位置とに変位するように錠構造を変更できる。その場合には、鍵体４５を収容部３３の上面側から日付印に外嵌して、錠止片３５の解錠操作を行なう。錠止ばね３６はつづら折り状に折り曲げた金属製の板ばね、あるいは線ばねで形成することができる。 In the embodiment described with reference to FIGS. 1 to 9, the locking piece 35 can be displaced between the lower locking position and the upper unlocking position. The lock structure can be changed so as to be displaced between the lock position and the lower unlock position. In that case, the key body 45 is externally fitted to the date stamp from the upper surface side of the accommodating portion 33, and the unlocking operation of the locking piece 35 is performed. The lock spring 36 can be formed of a metal leaf spring or wire spring bent in a zigzag manner.

べース筒１１の側に解錠溝３８に相当するガイドリブ（解錠ガイド）を設けておき、錠止片３５の内面に先のガイドリブでスライド案内される錠溝（錠体）を設けることができる。その場合には、錠止片３５を鍵体４５で押し上げて、錠溝とガイドリブの高さを一致させた状態においてのみ、ロックリング３０をロック解除できる。錠突起４０はピン状に形成することができる。錠構造は、カバー筒５と印字ユニット２との間に設けることができる。また、調整ダイヤルが本体ケースの外面に露出している日付印があるが、この種の日付印においては、四角柱状の金属製の本体ケースと調整ダイヤルとの間に錠構造を設け、調整ダイヤルの回転を錠構造で阻止して、日付の変更を規制することができる。 A guide rib (unlocking guide) corresponding to the unlocking groove 38 is provided on the base tube 11 side, and a locking groove (locking body) slidably guided by the previous guide rib is provided on the inner surface of the locking piece 35. Can do. In this case, the lock ring 30 can be unlocked only when the lock piece 35 is pushed up by the key body 45 and the height of the lock groove and the guide rib is matched. The lock protrusion 40 can be formed in a pin shape. The lock structure can be provided between the cover cylinder 5 and the printing unit 2. In addition, there is a date stamp that the adjustment dial is exposed on the outer surface of the main body case, but in this type of date stamp, a lock structure is provided between the square columnar metal main body case and the adjustment dial. Can be prevented by the lock structure to restrict the date change.

鍵体４５の鍵片４７は鍵本体４６と一体に形成することができる。鍵本体４６はリング状に形成する必要はなく、少なくとも鍵片４７を支持できるものであればよい。例えば、鍵本体４６をドーナツ円盤状に形成して、その片面に鍵片４７を固定して鍵体４５とすることができる。あるいは、Ｃ字状やコ字状の板状枠、あるいはＣ字状やコ字状に折り曲げた棒状体で鍵本体４６を形成し、その片面に鍵片４７を固定して鍵体４５とすることができる。鍵片４７はピン状に形成することができる。 The key piece 47 of the key body 45 can be formed integrally with the key body 46. The key body 46 does not need to be formed in a ring shape, and may be any one that can support at least the key piece 47. For example, the key body 46 can be formed in a donut disk shape, and the key piece 47 can be fixed on one side to form the key body 45. Alternatively, a key body 46 is formed of a C-shaped or U-shaped plate-shaped frame or a rod-shaped body bent into a C-shaped or U-shaped shape, and a key piece 47 is fixed to one side to form a key body 45. be able to. The key piece 47 can be formed in a pin shape.

１本体ケース
２印字ユニット
４主ケース
５カバー筒
７調整窓
２２調整ダイヤル
２４印字ベルト
３０ロックリング
３３収容部
３５錠止片
３６錠止ばね
３８解錠溝
４０錠突起
４５鍵体
４７鍵片 DESCRIPTION OF SYMBOLS 1 Main body case 2 Printing unit 4 Main case 5 Cover cylinder 7 Adjustment window 22 Adjustment dial 24 Printing belt 30 Lock ring 33 Housing part 35 Locking piece 36 Locking spring 38 Unlocking groove 40 Locking protrusion 45 Key body 47 Key piece

Claims

A printing unit (2) having a plurality of printing belts (24) and an adjustment dial (22) is accommodated in the main body case (1).
The main body case (1) includes a main case (4) that houses the printing unit (2), and a cover cylinder (5) that covers the outer surface of the main case (4).
The cover cylinder (5) is configured so that the posture can be changed between a closed posture that covers the outer surface of the main case (4) and an open posture that opens the outer surface of the main case (4).
A date mark that can change the date of the printing unit (2) by operating the adjustment dial (22) in a state in which the cover cylinder (5) is in an open position,
Tablets structure cover cylinder (5) to restrict the manipulated switched to the open posture, Ri Oh provided in the main body case (1),
A lock ring (30) for restricting the opening of the cover cylinder (5) is supported by the body case (1) so as to be switchable between a locked position and an unlocked position.
A lock structure is provided between the body case (1) and the lock ring (30) to prevent the lock ring (30) from being switched to the unlocked state.
An accommodating portion (33) is provided around the lock ring (30),
The lock structure is housed inside the housing portion (33), and the lock piece (35) for restricting the switching operation of the lock ring (30) in the lock position, and the lock piece (35) toward the lock position. A locking spring (36) that moves and urges, and an unlocking guide (38) provided on the peripheral surface of the main body case (1) facing the housing portion (33),
The locking piece (35) includes a lock body (40) that is engaged and guided by the unlocking guide (38), and is guided so as to be displaceable between a locking position and an unlocking position by the housing portion (33). Has been
When the locking piece (35) is displaced to the unlocking position by the key body (45), the locking body (40) becomes engageable with the unlocking guide (38), and the lock ring (30) the displacement operation the to the unlocked position can be locked with a date stamp that characterized the Rukoto.

The housing portions (33) are provided at a plurality of locations around the lock ring (30), and each housing portion (33) is provided with a lock structure.
The formation height position of the unlocking guide (38) facing each housing part (33) is different,
The key body (45) includes a key body (46) and a plurality of key pieces (47) protruding from the end face of the key body (46).
The date stamp with a lock according to claim 1 , wherein the protruding dimension of the key piece (47) is varied depending on the difference in the height position of each unlocking guide (38) .

A key hole (50) that engages with the key piece (47) is formed on the lower surface of the locking piece (35),
The date stamp with a lock according to claim 2, wherein at least one of the shape and the hole depth of the key hole (50) in each locking piece (35) is different .

The date stamp with a lock | rock as described in any one of Claim 1 to 3 in which the lock spring (36) is formed in the shape of a zigzag .

The date stamp with a lock according to claim 4, wherein the locking piece (35) and the locking spring (36) are integrally formed of a plastic material .

A printing unit (2) having a plurality of printing belts (24) and an adjustment dial (22) is accommodated in the main body case (1).
The main body case (1) includes a main case (4) that houses the printing unit (2), and a cover cylinder (5) that covers the outer surface of the main case (4).
The cover cylinder (5) is configured so that the posture can be changed between a closed posture that covers the outer surface of the main case (4) and an open posture that opens the outer surface of the main case (4).
A date mark that can change the date of the printing unit (2) by operating the adjustment dial (22) in a state in which the cover cylinder (5) is in an open position,
A lock structure for restricting the cover cylinder (5) from being switched to the open position is provided in the main body case (1),
With the keyhole exposed on the outer surface of the cover cylinder (5), the lock unit (51) assembled to the cover cylinder (5) and the lock body (52) fixed to the output shaft (54) of the lock unit (51) ) And a lock piece (53) with which the locking body (52) is engaged and disengaged, and the lock structure is configured,
A lock piece (53) is provided on the upper part of the main case (4) facing the lock unit (51),
The date stamp with a lock | rock characterized by restrict | limiting that a locking body (52) engages with a lock piece (53), and a cover cylinder (5) switches to an open position .

A printing unit (2) having a plurality of printing belts (24) and an adjustment dial (22) is accommodated in the main body case (1).
The main body case (1) includes a main case (4) that houses the printing unit (2), and a cover cylinder (5) that covers the outer surface of the main case (4).
The cover cylinder (5) is configured so that the posture can be changed between a closed posture that covers the outer surface of the main case (4) and an open posture that opens the outer surface of the main case (4).
A date mark that can change the date of the printing unit (2) by operating the adjustment dial (22) in a state in which the cover cylinder (5) is in an open position,
A lock structure for restricting the cover cylinder (5) from being switched to the open position is provided in the main body case (1),
A window plate (60) constituting a part of the peripheral wall of the cover tube (5) is supported by the cover tube (5) so as to be swingable and openable.
On the inner surface of the window plate (60), it slides and displaces to a lower unlocking position and an upper locking position, and from the lower side to the upper opening edge of the adjustment window (7) of the main case (4) in the locking position. An engaging locking piece (62) is provided,
On the outer surface of the window plate (60), there are provided an operation knob (63) for slidingly operating the locking piece (62) and a locking unit (65) for regulating the unlocking and sliding operation of the locking piece (62). And
A date stamp with a lock, characterized in that the unlocking slide operation of the locking piece (62) is regulated by the locking unit (65) to regulate the switching of the cover tube (5) to the open position .