JP2004178544A - Antitheft function means - Google Patents

Antitheft function means Download PDF

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JP2004178544A
JP2004178544A JP2003035816A JP2003035816A JP2004178544A JP 2004178544 A JP2004178544 A JP 2004178544A JP 2003035816 A JP2003035816 A JP 2003035816A JP 2003035816 A JP2003035816 A JP 2003035816A JP 2004178544 A JP2004178544 A JP 2004178544A
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Prior art keywords
detection
resonance
theft
circuit
tag
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JP2003035816A
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Japanese (ja)
Inventor
Masahiro Tanaka
正浩 田中
Hideki Orimoto
秀樹 折本
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Sigma Inc
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Sigma Inc
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an antitheft function means allowing the turning on/off of a switch of a detection resonance circuit or a detection circuit to be executed by using a guide plate of an antitheft means, thereby turning off the switch when the antitheft means is removed at a checkout counter in, for instance, a rental shop of CDs and DVDs and allowing the CD(s) or DVD(s) to be handed over to customers as it is, capable of improving work efficiency, allowing the customers to freely enter and exit because they are not detected in passing a gate (having a form with a reception/transmission antenna incorporated) installed at a door, capable of improving detection capability of a resonance tag, and of changing the detection capability by a shape for superimposing a resonance tag of an antenna wire, and usable according to a purpose. <P>SOLUTION: This antitheft function means is equipped with: the detection resonance circuit provided with the switch in a storing case with optical recording media such as CDs or DVDs or the like stored; and the detachable antitheft means. The switch of the detection resonance circuit is turned on/off by inserting and extracting the antitheft means. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、主にCDやDVD等の光学式記録媒体等を収納する収納ケースに設けた検出共振回路あるいは検出回路を、盗難防止具の案内板等にてON・OFFする盗難防止機能具に関するものである。
【0002】
【従来の技術】
従来の技術としては、送信アンテナを内蔵した一方のゲートと受信アンテナを内蔵した他方のゲート間を、CD等の記録媒体を収納した収納ケース、又はこの収納ケースを覆う保護ケースに備えた共振回路が通過することによって電波吸収の有無を検知することができる盗難防止システムにおいて、前記収納ケースの記録媒体厚み方向両側のうち少なくとも一側面の外周縁に位置して電波を検出可能な検出回路と、前記収納ケースの一側面と交差する特定の一側面に位置し、且つ、前記検出回路と近接位置する、又は検出回路と接続された前記共振回路とから、盗難防止用タグを構成したことを特徴としているものがある。(特許文献1参照)
【0003】
【特許文献1】
特開平11−126283号公報(請求項1、図3、図4)
【0004】
【発明が解決しようとする課題】
しかし、上記のような形態では、収納ケース内に共振回路と検出回路を常にONした状態で形成しているため、レジにて収納ケース内のCD等を一旦出して袋等に入れ、お客様に渡しているため、非常に手間であり、そのまま収納ケース(商品入り)を渡す形態のものが望まれていた。
また、収納ケースの一側面と交差する特定の一側面に共振回路を位置してなるもので、共振回路の位置を限定しているため、本発明のような共振タグ(ペーパー状で、裏面に検出回路を設けると共に、貼着部を設けてなるもの)を所要位置に着脱自在に貼り付けて使用することができず、必然的に仕様が限定されるものであり、汎用性がない。
本発明は、上記の問題点に鑑みなされたもので、検出共振回路あるいは検出回路のスイッチのON・OFFを盗難防止具の案内板等で行うことにより、例えばCD・DVD等のレンタルショップにおいて、レジにて盗難防止具を取り外した時点で、スイッチがOFFとなり、そのままお客様にお渡しすることができ、作業効率を向上させると共に、出入口に設置されたゲート(送受信アンテナを内蔵した形態のもの)を通過した時、検知しないため、お客様は自由に出入りすることができ、共振タグの検出能力を向上させると共に、アンテナ線の共振タグを重合させる形状により検出能力を変更することができ、目的に応じた使用ができる盗難防止機能具を提供することを目的とする。
【0005】
【課題を解決するための手段】
課題を解決するための手段として、CDやDVD等の光学式記録媒体等を収納した収納ケースにスイッチを設けた検出共振回路を設けると共に、着脱自在な盗難防止具を設け、該盗難防止具の出し入れ(例えば案内板等)にて検出共振回路のスイッチをON・OFFすること。また、検出共振回路が、検出用コイルによる検出回路と、共振用コイルとコンデンサからなる共振回路により構成してなること。さらに、検出用コイルによる検出回路の1/2以上を収納ケースの外周付近に設けてなること。さらにまた、盗難防止具に、共振タグを設けてなること。その上、CDやDVD等の光学式記録媒体等を収納した収納ケースに検出用コイルによる検出回路を設けると共に、着脱自在な共振タグを付設した盗難防止具を設けてなることを特徴とする。
CDやDVD等の光学式記録媒体等を収納したケース内に着脱自在に取り付ける盗難防止機能具であって、支持体の少なくとも2側面の外周に沿うと共に、少なくとも一角に内側凸状の共振タグ貼付部を形成してなるコイルのみからなる検出回路を少なくとも1回巻きにして設けてなり、共振タグを上記共振タグ貼付部に着脱自在に貼り付けてなること。CDやDVD等の光学式記録媒体等を収納したケース内に着脱自在に取り付ける盗難防止機能具であって、支持体の少なくとも2側面の外周に沿うと共に、少なくとも一辺に内側凸状の共振タグ貼付部を形成してなるコイルのみからなる検出回路を少なくとも1回巻きにして設けてなり、共振タグを上記共振タグ貼付部に着脱自在に貼り付けてなること。また、少なくとも1回巻きの検出回路において、端部が電気的に導通しており、少なくとも2回巻き以上の場合、接合部が絶縁されてなること。さらに、共振タグが、ペーパー状で裏面に検出共振回路を設けると共に、貼着部を設けてなること。その上、基板に指が入る大きさの孔を設けてなることを特徴とする
【0006】
【発明の実施の形態】
盗難防止機能具1は、主にCDやDVD等の光学式記録媒体等を収納する収納ケース2に、スイッチ3を設けた検出用コイルによる検出回路4と、共振用コイル5aとコンデンサ5bとからなる共振回路5を設けてなる検出共振回路6を形成すると共に、着脱自在な盗難防止具7を設け、該盗難防止具7の先端に設けた案内板8cにて上記検出共振回路6のスイッチ3をON・OFFしてなるものである。
【0007】
上記収納ケース2は、下部に空間部2aを、上部にCDやDVD等を収納する収納部2bを設けると共に、空間部2aの上板2a1と下板2a2に板バネの先端部を係止する係止孔2a11・2a21を設けてなる。
【0008】
上記検出回路4は、上記収納ケース2の収納部2bの外周内側にループ状に1回巻きしてなる(収納ケース2内に一体形成するか、内面に接着する等)と共に、下部にスイッチ3を設けてある。
【0009】
上記共振回路5は、上記検出回路4の上部に設けてなるもので、共振コイル5aの巻き数及びコンデンサ5bの容量を各々変更し、組み合せすることにより共振周波数を変更できるものとする。
【0010】
上記盗難防止具7は、上記収納ケース2の下部の空間部2a内に設けてなるもので、空間部2aに出し入れ自在な箱形のケース本体8aの上面及び下面に孔8a1、8a2を設けると共に、背面に板バネ8dを取り付けるための板バネ取付部8b1を設けてなり、先端部に案内板8cを突設してなるロック部ケース本体8と、ロック部ケース本体8内に設ける、水平方向にスライドする後端部に圧縮スプリング9aを受ける受部9bを、該受部9bの側方に上記板バネ取付部8b1を突出させる切欠孔9b1を、中央部付近の上部及び下部に、上記板バネ8dを内側に移動させるための突片9c・9cを、先端部に磁石により引っ張られる鉄部9dを、それぞれ設けてなる平板状のスライド板9と、上記ロック部ケース本体8の上面に突設した共振タグ(図示せず)等を取り付ける平板による取付部7aを設けてなる構成である。
なお、取付部7aは必要に応じて設ければよい。
【0011】
上記盗難防止機能具1について、下記に使用例を説明する。
通常、盗難防止機能具1は店内に陳列されている時は、収納ケース2内に盗難防止具7を収納し、万一盗まれても出入口のゲート(図示せず)で検出共振回路6(共振タグ)が反応し、盗難をチェックできると共に、容易に盗難防止具7を取り外すことができず、セキュリティ効果が高い。
【0012】
つまり、盗難防止具7の案内板8cにより共振回路5のスイッチ3を常時ONしており、検出共振回路6が作動する状態になっている。
【0013】
つぎに、検出共振回路6を解除する場合を説明する。
お客様が購入された商品(盗難防止機能付ケース1)をレジにて、特殊磁石G(一般に市販されていない、例えば15000ガウス以上のもの)を、収納ケース2の空間部2aの右側に位置させることにより、鉄部9dが特殊磁石Gに引っ張られ、スライド板9が右側に移動し、圧縮スプリング9aが圧縮されると同時に突片9c・9cが板バネ8dを内側に移動させることにより、板バネ8dの先端部が係止孔2a11・2a21より外れ、盗難防止具7を収納ケース2より取り外すことができ、この状態でお客様にお渡しするものである。
【0014】
この時、盗難防止具7の案内板8cは共振回路5のスイッチ3より離れ、OFFになる。
つまり、持ち出しOKの状態となる。
このように、盗難防止機能具1は、盗難防止具7を取り外すことにより、自動的に検出共振回路6を解除できるものである。
【0015】
なお、取付部7a(必要に応じて設けるもの)には必ずしも共振タグ(通称:ペーパータグ)を貼り付けることなく使用できるが、よりセキュリティ効果を高める場合、例えば共振タグを8.2MHzとし、検出共振回路を10.5MHzとした場合、同一店舗内にゲートを2種類設けることによりダブルチェックできるものである。
【0016】
つぎに、他の実施例として、盗難防止機能具21は、盗難防止具27の取付部27aに共振タグT(ペーパー状で表面にバーコード等を印刷してあるもの)を貼り付けると共に、検出用コイルによる検出回路24を収納部22bの外周内側にループ状に1回巻きしてなるものである。
なお、必要に応じて1回巻きではなく、2回・3回巻きでもよい。
【0017】
この盗難防止機能具21は、検出回路24の増幅機能(アンテナ機能)により、共振タグTの感知能力をアップさせることができるもので、セキュリティ効果を向上させてなるものである。
なお、盗難防止具27を取り外す場合は前記と同様に特殊磁石により行うもので、盗難防止具27を取り外すことで共振タグTは収納ケース内から無くなり、収納ケース内には検出回路24が残るが、ゲートを通っても反応しない。
【0018】
CDやDVD等の光学式記録媒体等を収納した収納ケースKS内に着脱自在に取り付ける盗難防止機能具31は、フィルム状で方形状の中央付近に指が入る大きさの孔32aを設けた支持体32の4側面の外周に沿わせると共に、右の角K

Figure 2004178544
出回路33を設けてなり、共振タグT(ペーパー状で、表面にバーコードを表示すると共に、裏面に渦巻き状の共振回路T1及び貼着部を設けてある)の2側部Ta・Tbを共振タグ貼付部33aに重合して貼り付けてなるものである。(図4参照)
【0019】
盗難防止機能具31の使用例としては、ケースKS内に入れ、その後に商品(図示せず)を中に入れ、店内に陳列する。(図5参照)
その後、お客様がレジにて購入する時、商品を取り出し、お客様に渡し、ケースKSと盗難防止機能具31は店内にて再利用するものである。
なお、盗難防止機能具31を必要に応じて差し替えればよく、その場合、孔32aに指(図示せず)を入れ盗難防止機能具31を取り出すことができるものである。
【0020】
盗難防止機能具41は、支持体42の4側面の外周に沿わせると共に、底辺中央に下向きコの字形の内側凸状の共振タグ貼付部43aを形成してなる検出回路43を設けてなるもので、共振タグT1の3側面T1a・T1b・T1cを共振タグ貼付部43aに重合して貼り付けてなるものである。(図6参照)
【0021】
盗難防止機能具51は、支持体52の4側面の外周に沿わせると共に、左の角K1にロの字形の内側凸状の共振タグ貼付部53aを形成してなる検出回路53を設けてなるもので、共振タグT2の4側面T2a・T2b・T2c・T2dを共振タグ貼付部53aに重合して貼り付けてなるものである。(図7参照)
なお、接合部53bは絶縁されてなるものである。
【0022】
つづいて、上記盗難防止機能具31、盗難防止機能具41、盗難防止機能具51の測定値について下記に説明する。
まず、測定方法について説明する。
ゲートG(電波方式・周波数帯8.2MHz)を1500mmの幅Wで立設し、その中央に各共振タグ用増幅回路を置き、オシロスコープにて波形の変化を測定した。(図8参照)
【0023】
【表1】
Figure 2004178544
【0024】
上記表1は、共振タグのみを測定したものである。
【0025】
【表2】
Figure 2004178544
【0026】
上記表2は、盗難防止機能具31を測定したもので、共振タグのみの波形と比較し、約1.5倍になり、約1.5倍の感度アップが確認できた。
【0027】
【表3】
Figure 2004178544
【0028】
上記表3は、盗難防止機能具41を測定したもので、共振タグのみの波形と比較して、約2.2倍になり、約2.2倍の感度アップが確認できた。
【0029】
【表4】
Figure 2004178544
【0030】
上記表4は、盗難防止機能具51を測定したもので、共振タグのみの波形と比較して、約3倍になり、約3倍の感度アップが確認できた。
【0031】
以上のように、感度アップが実験にて実証されたが、基本的に1回巻きのデータであり、2・3回巻きにすることにより、より感度アップさせることは可能である。
また、共振タグ(通称:ペーパータグ)の周波数帯は、8.2MHzに限定するものでなく、他の周波数帯でもよい。
【0032】
上記実施例において、盗難防止具の形態は、特に限定するものではなく、同様な機能を有するものであれば他の形態でもよい。
また、スイッチの形態も、特に限定することなく、一般に使用されているものでよい。
さらに、収納ケースに入れる商材は、CDやDVDのみならず、他の商品に応用できるものである。
さらにまた、スイッチのON・OFFは案内板以外にも、ケース本体で行うのも一考である。
【0033】
【発明の効果】
1)、検出共振回路のスイッチのON・OFFを盗難防止具の出し入れにより、簡単に制御できるもので、いちいち収納ケースより商品(CD等)を取り出すことなく使用できるためレジ等での作業効率を向上させてなる。
2)、案内板等にて検出共振回路のスイッチをON・OFFするため、形状がシンプルになり、故障が少ない。
3)、検出共振回路を収納ケースの外周内側に設けることにより、感度を上げることができる。
4)、検出共振回路と共振タグの組み合せにより、2つの周波数帯を設定でき、より高いセキュリティ効果を提供できる。
5)、検出回路と共振タグの組み合せにより、共振タグの感知能力(感度)を上げることができる。
6)、検出回路に共振タグを着脱自在に取り付けられるため、目的に応じた共振タグを付けかえることができ、使用範囲が広がる。
7)、検出回路の一部をL字形にし、共振タグを重合させることにより、約1.5倍の感度アップとなった。
8)、検出回路の一部をコの字形にし、共振タグを重合させることにより、約2.2倍の感度アップとなった。
9)、検出回路の一部をロの字形にし、共振タグを重合させることにより、約3倍の感度アップとなった。
10)、基板に孔を設けることにより取り付け、取り外しが容易となる。
【図面の簡単な説明】
【図1】本発明の第1実施例を示す盗難防止機能具の陳列時の状態の一部縦断正面図。
【図2】本発明の第1実施例を示す盗難防止機能具の盗難防止具を解除した状態の一部縦断正面図。
【図3】本発明の第2実施例を示す盗難防止機能具の陳列時の状態の一部縦断正面図。
【図4】本発明の第3実施例を示す盗難防止機能具の正面図。
【図5】本発明の第3実施例を示す盗難防止機能具の使用状態の正面図。
【図6】本発明の第4実施例を示す盗難防止機能具の正面図。
【図7】本発明の第5実施例を示す盗難防止機能具の正面図。
【図8】本発明の第3、第4、第5実施例の盗難防止機能具の測定装置の正面図。
【符号の説明】
1−−−盗難防止機能具
2−−−収納ケース
3−−−スイッチ
4−−−検出回路
5−−−共振回路
6−−−検出共振回路
7−−−盗難防止具
8−−−ロック部ケース本体
9−−−スライド板[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an anti-theft function device for turning ON / OFF a detection resonance circuit or a detection circuit provided in a storage case mainly for storing an optical recording medium such as a CD or DVD with a guide plate of the anti-theft device. Things.
[0002]
[Prior art]
As a conventional technique, a resonance circuit provided in a storage case for storing a recording medium such as a CD or a protective case covering this storage case is provided between one gate having a built-in transmission antenna and the other gate having a built-in reception antenna. In the anti-theft system capable of detecting the presence or absence of radio wave absorption by passing through, a detection circuit capable of detecting radio waves located on the outer peripheral edge of at least one side surface of both sides of the storage case in the thickness direction of the recording medium, The anti-theft tag is constituted by the resonance circuit which is located on one specific side surface which intersects with one side surface of the storage case and is located close to the detection circuit or connected to the detection circuit. There is something that says. (See Patent Document 1)
[0003]
[Patent Document 1]
JP-A-11-126283 (Claims 1, 3 and 4)
[0004]
[Problems to be solved by the invention]
However, in the above-described embodiment, since the resonance circuit and the detection circuit are formed in the storage case in a state where the resonance circuit and the detection circuit are always on, the CD or the like in the storage case is once taken out at the cash register and put in a bag or the like. Since it is handed over, it is very troublesome, and a form in which a storage case (containing a product) is handed over as it is has been desired.
In addition, the resonance circuit is located on one specific side surface that intersects one side surface of the storage case. Since the position of the resonance circuit is limited, the resonance tag (paper-like, It is not possible to detachably attach a detection circuit and a sticking portion to each other at a required position for use, and the specifications are necessarily limited, and there is no versatility.
The present invention has been made in view of the above-mentioned problems, and by performing ON / OFF of a detection resonance circuit or a switch of a detection circuit with a guide plate of an anti-theft device, for example, in a rental shop such as a CD / DVD, When the anti-theft device is removed at the cash register, the switch turns off and can be handed over to the customer as it is, improving work efficiency and installing a gate installed at the entrance (with a built-in transmitting and receiving antenna) Since it does not detect when passing through, customers can freely enter and exit, improve the detection ability of the resonance tag, and can change the detection ability by the shape of overlapping the resonance tag of the antenna wire, It is an object of the present invention to provide an anti-theft function device that can be used according to the purpose.
[0005]
[Means for Solving the Problems]
As means for solving the problems, a detection resonance circuit provided with a switch is provided in a storage case storing an optical recording medium such as a CD or a DVD, and a detachable anti-theft device is provided. Turn on / off the switch of the detection resonance circuit by taking in and out (for example, a guide plate). Further, the detection resonance circuit includes a detection circuit using a detection coil and a resonance circuit including a resonance coil and a capacitor. Further, at least half of the detection circuit using the detection coil is provided near the outer periphery of the storage case. Furthermore, the anti-theft device must be provided with a resonance tag. In addition, a detection circuit using a detection coil is provided in a storage case that stores an optical recording medium such as a CD or DVD, and an anti-theft device provided with a detachable resonance tag is provided.
An anti-theft device that is removably attached to a case containing an optical recording medium such as a CD or DVD, and is attached along at least two sides of an outer periphery of the support and at least one corner inwardly protruding resonance tag. A detection circuit consisting of only a coil forming the portion is provided by winding at least once, and a resonance tag is detachably attached to the resonance tag attachment portion. An anti-theft device that is removably mounted in a case containing an optical recording medium such as a CD or DVD, and has an inner convex resonance tag attached to at least one side along the outer circumference of at least two side surfaces of the support. A detection circuit consisting of only a coil forming the portion is provided by winding at least once, and a resonance tag is detachably attached to the resonance tag attachment portion. Further, in the detection circuit having at least one turn, the end portion is electrically connected, and in the case of at least two turns, the junction is insulated. Further, the resonance tag is provided in the form of a paper with a detection resonance circuit provided on the back surface and an attachment portion. In addition, the substrate is provided with a hole large enough to receive a finger.
BEST MODE FOR CARRYING OUT THE INVENTION
The anti-theft function device 1 mainly includes a storage case 2 for storing an optical recording medium such as a CD or a DVD, a detection circuit 4 including a detection coil provided with a switch 3, a resonance coil 5a and a capacitor 5b. And a detachable anti-theft device 7, and a guide plate 8c provided at the end of the anti-theft device 7 for the switch 3 of the detection resonance circuit 6. Are turned ON / OFF.
[0007]
The storage case 2 is provided with a space 2a at a lower part and a storage part 2b at a top for storing a CD, a DVD, or the like, and a distal end of a leaf spring is locked to an upper plate 2a1 and a lower plate 2a2 of the space 2a. The locking holes 2a11 and 2a21 are provided.
[0008]
The detection circuit 4 is wound once around the outer periphery of the storage portion 2b of the storage case 2 (integrally formed in the storage case 2 or adhered to the inner surface), and the switch 3 is provided at the lower portion. Is provided.
[0009]
The resonance circuit 5 is provided above the detection circuit 4. The resonance frequency can be changed by changing and combining the number of turns of the resonance coil 5a and the capacitance of the capacitor 5b.
[0010]
The anti-theft device 7 is provided in the space 2a at the lower part of the storage case 2, and is provided with holes 8a1 and 8a2 on the upper surface and the lower surface of a box-shaped case main body 8a which can be freely inserted into and removed from the space 2a. A locking portion case body 8 having a leaf spring mounting portion 8b1 for mounting a leaf spring 8d on the back surface thereof, and a guide plate 8c protruding at a distal end portion; A receiving portion 9b for receiving the compression spring 9a is provided at a rear end thereof which slides, a notch hole 9b1 for protruding the leaf spring mounting portion 8b1 is provided on a side of the receiving portion 9b, and the plate is provided at an upper portion and a lower portion near a central portion. A protruding piece 9c for moving the spring 8d inward, a flat slide plate 9 provided with an iron portion 9d which is pulled by a magnet at the tip thereof, and a protruding piece 9c Set up It is provided comprising constituting a mounting portion 7a by flat attaching the resonant tag (not shown) or the like.
Note that the mounting portion 7a may be provided as needed.
[0011]
A usage example of the anti-theft function device 1 will be described below.
Normally, when the anti-theft function device 1 is displayed in the store, the anti-theft device 7 is stored in the storage case 2 so that even if the anti-theft device 1 is stolen, the detection resonance circuit 6 (not shown) is provided at the entrance gate (not shown). The resonance tag) reacts and the theft can be checked, and the anti-theft device 7 cannot be easily removed, so that the security effect is high.
[0012]
That is, the switch 3 of the resonance circuit 5 is always turned on by the guide plate 8c of the antitheft device 7, and the detection resonance circuit 6 is in a state of operation.
[0013]
Next, a case where the detection resonance circuit 6 is released will be described.
The customer purchases the product (case 1 with anti-theft function) at a cash register and places a special magnet G (not generally available, for example, 15,000 gauss or more) on the right side of the space 2a of the storage case 2. As a result, the iron portion 9d is pulled by the special magnet G, the slide plate 9 moves to the right, the compression spring 9a is compressed, and at the same time, the protruding pieces 9c move the plate spring 8d inward. The tip of the spring 8d is disengaged from the locking holes 2a11 and 2a21, and the antitheft device 7 can be removed from the storage case 2 and handed to the customer in this state.
[0014]
At this time, the guide plate 8c of the antitheft device 7 is separated from the switch 3 of the resonance circuit 5 and turned off.
That is, it is in the state of taking out OK.
As described above, the antitheft function device 1 can automatically release the detection resonance circuit 6 by removing the antitheft device 7.
[0015]
It should be noted that a resonance tag (commonly called a paper tag) can be used without being attached to the mounting portion 7a (provided as necessary). However, in order to further enhance the security effect, for example, the resonance tag is set to 8.2 MHz and the detection is performed. When the resonance circuit is 10.5 MHz, double checking can be performed by providing two types of gates in the same store.
[0016]
Next, as another embodiment, the anti-theft function device 21 affixes a resonance tag T (a paper-shaped bar code or the like is printed on the surface) to the mounting portion 27a of the anti-theft device 27 and detects the tag. The detection circuit 24 is formed by winding the detection circuit 24 by a coil around the inside of the outer periphery of the storage portion 22b once in a loop shape.
In addition, two or three turns may be used instead of one turn as necessary.
[0017]
The anti-theft function device 21 can increase the sensing ability of the resonance tag T by the amplifying function (antenna function) of the detection circuit 24, and improves the security effect.
The anti-theft device 27 is removed by using a special magnet in the same manner as described above. By removing the anti-theft device 27, the resonance tag T disappears from the storage case, and the detection circuit 24 remains in the storage case. Does not react when passing through the gate.
[0018]
The anti-theft function device 31 which is detachably mounted in a storage case KS which stores an optical recording medium such as a CD or a DVD is provided with a hole 32a in the vicinity of the center of a rectangular film-like shape. Along the outer periphery of the four side surfaces of the body 32, the right corner K
Figure 2004178544
An output circuit 33 is provided, and two side portions Ta and Tb of a resonance tag T (paper-like, a barcode is displayed on the front surface, and a spiral resonance circuit T1 and a sticking portion are provided on the back surface). It is formed by superimposing and attaching to the resonance tag attaching portion 33a. (See Fig. 4)
[0019]
As an example of use of the anti-theft function device 31, the anti-theft function device 31 is put in a case KS, and thereafter, a product (not shown) is put inside and displayed in a store. (See Fig. 5)
Thereafter, when the customer purchases at the cash register, the customer takes out the product, passes it to the customer, and reuses the case KS and the anti-theft function device 31 in the store.
The anti-theft function device 31 may be replaced as needed. In this case, a finger (not shown) can be inserted into the hole 32a to take out the anti-theft function device 31.
[0020]
The anti-theft function tool 41 is provided with a detection circuit 43 that is formed along the outer periphery of the four side surfaces of the support body 42 and that has a downwardly U-shaped inwardly convex resonance tag attaching portion 43a formed in the center of the bottom side. Thus, the three side surfaces T1a, T1b, and T1c of the resonance tag T1 are superimposed and attached to the resonance tag attachment portion 43a. (See Fig. 6)
[0021]
The anti-theft function tool 51 is provided with a detection circuit 53 formed along the outer periphery of the four side surfaces of the support body 52 and formed with a rectangular-shaped inwardly convex resonance tag attaching portion 53a in the left corner K1. The resonance tag T2 has four side surfaces T2a, T2b, T2c, and T2d superposed on and attached to the resonance tag attaching portion 53a. (See Fig. 7)
Note that the joint 53b is insulated.
[0022]
Next, measured values of the anti-theft function device 31, the anti-theft function device 41, and the anti-theft function device 51 will be described below.
First, the measurement method will be described.
A gate G (radio wave system, frequency band 8.2 MHz) was erected with a width W of 1500 mm, and each resonance tag amplifier circuit was placed at the center thereof, and a change in waveform was measured with an oscilloscope. (See Fig. 8)
[0023]
[Table 1]
Figure 2004178544
[0024]
Table 1 above shows measurements of only the resonance tag.
[0025]
[Table 2]
Figure 2004178544
[0026]
In Table 2 above, the anti-theft function device 31 was measured, and as compared with the waveform of the resonance tag alone, the sensitivity was about 1.5 times, and the sensitivity was increased about 1.5 times.
[0027]
[Table 3]
Figure 2004178544
[0028]
In Table 3 above, the anti-theft function device 41 was measured. The waveform was about 2.2 times that of the waveform of the resonance tag alone, and the sensitivity was increased about 2.2 times.
[0029]
[Table 4]
Figure 2004178544
[0030]
In Table 4 above, the anti-theft function device 51 was measured, and the waveform was about three times as large as that of the waveform of the resonance tag alone, and the sensitivity was increased about three times.
[0031]
As described above, the increase in sensitivity has been proved in the experiment, but it is basically data of one turn, and it is possible to further increase the sensitivity by making two or three turns.
Further, the frequency band of the resonance tag (commonly called paper tag) is not limited to 8.2 MHz, but may be another frequency band.
[0032]
In the above embodiment, the form of the anti-theft device is not particularly limited, and other forms may be used as long as they have the same function.
Also, the form of the switch is not particularly limited, and a commonly used switch may be used.
Further, the merchandise to be put in the storage case can be applied to not only CDs and DVDs but also other products.
Furthermore, it is also conceivable that the ON / OFF of the switch is performed by the case body in addition to the guide plate.
[0033]
【The invention's effect】
1) The ON / OFF of the switch of the detection resonance circuit can be easily controlled by putting in and out the anti-theft device, and it can be used without taking out the product (CD etc.) from the storage case each time, so that the work efficiency at the cash register etc. is improved. It will be improved.
2) Since the switch of the detection resonance circuit is turned ON / OFF by the guide plate or the like, the shape is simplified, and the number of failures is small.
3) By providing the detection resonance circuit inside the outer periphery of the storage case, the sensitivity can be increased.
4) By combining the detection resonance circuit and the resonance tag, two frequency bands can be set, and a higher security effect can be provided.
5) By combining the detection circuit and the resonance tag, the sensing ability (sensitivity) of the resonance tag can be improved.
6) Since the resonance tag can be detachably attached to the detection circuit, the resonance tag can be changed according to the purpose, and the range of use can be expanded.
7) The sensitivity is increased by about 1.5 times by making a part of the detection circuit L-shaped and superimposing the resonance tag.
8) By making a part of the detection circuit a U-shape and superimposing the resonance tag, the sensitivity is increased about 2.2 times.
9) The sensitivity is increased about three times by making a part of the detection circuit into a square shape and superimposing the resonance tag.
10), mounting and dismounting are facilitated by providing holes in the substrate.
[Brief description of the drawings]
FIG. 1 is a partially longitudinal front view showing a state in which an anti-theft function device according to a first embodiment of the present invention is displayed.
FIG. 2 is a partially longitudinal front view of the anti-theft function device according to the first embodiment of the present invention in a state where the anti-theft device is released.
FIG. 3 is a partially longitudinal front view showing a state in which an anti-theft function device according to a second embodiment of the present invention is displayed.
FIG. 4 is a front view of the anti-theft function device according to a third embodiment of the present invention.
FIG. 5 is a front view of the anti-theft function device according to a third embodiment of the present invention in a used state.
FIG. 6 is a front view of the anti-theft function device according to a fourth embodiment of the present invention.
FIG. 7 is a front view of a theft prevention function device according to a fifth embodiment of the present invention.
FIG. 8 is a front view of a measuring device for an anti-theft function device according to the third, fourth, and fifth embodiments of the present invention.
[Explanation of symbols]
1 ---- Anti-theft function tool 2--Storage case 3--Switch 4--Detection circuit 5--Resonance circuit 6--Detection resonance circuit 7 ---- Anti-theft tool 8 ---- Lock Case body 9 ---- Slide plate

Claims (11)

CDやDVD等の光学式記録媒体等を収納した収納ケースにスイッチを設けた検出共振回路を設けると共に、着脱自在な盗難防止具を設け、該盗難防止具の出し入れにて検出共振回路のスイッチをON・OFFすることを特徴とする盗難防止機能具。A detection resonance circuit provided with a switch is provided in a storage case containing an optical recording medium such as a CD or a DVD, and a detachable anti-theft device is provided. A switch of the detection resonance circuit is provided by inserting and removing the anti-theft device. An anti-theft function tool that is turned ON / OFF. 盗難防止具の先端に設けた案内板により検出共振回路のスイッチをON・OFFすることを特徴とする請求項1記載の盗難防止機能具。2. The anti-theft function device according to claim 1, wherein a switch of the detection resonance circuit is turned on / off by a guide plate provided at a tip of the anti-theft device. 検出共振回路が、検出用コイルによる検出回路と、共振用コイルとコンデンサからなる共振回路により構成してなることを特徴とする請求項1又は2記載の盗難防止機能具。3. The anti-theft function device according to claim 1, wherein the detection resonance circuit includes a detection circuit including a detection coil and a resonance circuit including a resonance coil and a capacitor. 検出用コイルによる検出回路の1/2以上を収納ケースの外周付近に設けてなることを特徴とする請求項3記載の盗難防止機能具。4. The anti-theft device according to claim 3, wherein at least half of the detection circuit using the detection coil is provided near the outer periphery of the storage case. 盗難防止具に、共振タグを設けてなることを特徴とする請求項1、2、3又は4記載の盗難防止機能具。5. The anti-theft function device according to claim 1, wherein the anti-theft device is provided with a resonance tag. CDやDVD等の光学式記録媒体等を収納した収納ケースに検出用コイルによる検出回路を設けると共に、着脱自在な共振タグを付設した盗難防止具を設けてなることを特徴とする盗難防止機能具。An anti-theft device comprising: a storage case for storing an optical recording medium such as a CD and a DVD; a detection circuit using a detection coil; and an anti-theft device having a detachable resonance tag. . CDやDVD等の光学式記録媒体等を収納したケース内に着脱自在に取り付ける盗難防止機能具であって、支持体の少なくとも2側面の外周に沿うと共に、少なくとも一角に内側凸状の共振タグ貼付部を形成してなるコイルのみからなる検出回路を少なくとも1回巻きにして設けてなり、共振タグを上記共振タグ貼付部に着脱自在に貼り付けてなることを特徴とする盗難防止機能具。An anti-theft device that is removably attached to a case containing an optical recording medium such as a CD or DVD, and is attached to a resonance tag along the outer periphery of at least two sides of the support and at least one corner inwardly convex. An anti-theft function tool characterized by comprising a detection circuit consisting of only a coil having a part formed by winding at least one turn, and a resonance tag being removably attached to the resonance tag attachment part. CDやDVD等の光学式記録媒体等を収納したケース内に着脱自在に取り付ける盗難防止機能具であって、支持体の少なくとも2側面の外周に沿うと共に、少なくとも一辺に内側凸状の共振タグ貼付部を形成してなるコイルのみからなる検出回路を少なくとも1回巻きにして設けてなり、共振タグを上記共振タグ貼付部に着脱自在に貼り付けてなることを特徴とする盗難防止機能具。An anti-theft device that is removably mounted in a case containing an optical recording medium such as a CD or DVD, and has an inner convex resonance tag attached to at least one side along the outer circumference of at least two sides of the support. An anti-theft function tool characterized by comprising a detection circuit consisting of only a coil having a part formed by winding at least one turn, and a resonance tag being removably attached to the resonance tag attachment part. 少なくとも1回巻きの検出回路において、端部が電気的に導通しており、少なくとも2回巻き以上の場合、接合部が絶縁されてなることを特徴とする請求項6、7又は8記載の盗難防止機能具。9. The theft according to claim 6, 7 or 8, wherein the end portion of the detection circuit having at least one turn is electrically conductive, and the connection portion is insulated when the end portion has at least two turns. Prevention function device. 共振タグが、ペーパー状で裏面に検出共振回路を設けると共に、貼着部を設けてなることを特徴とする請求項6、7、8又は9記載の盗難防止機能具。10. The anti-theft function device according to claim 6, 7, 8 or 9, wherein the resonance tag is paper-shaped and has a detection resonance circuit provided on the back surface and an attachment portion. 基板に指が入る大きさの孔を設けてなることを特徴とする請求項7、8、9又は10記載の盗難防止機能具。11. The anti-theft device according to claim 7, wherein the substrate has a hole large enough to allow a finger to enter.
JP2003035816A 2002-10-01 2003-01-07 Antitheft function means Pending JP2004178544A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114023029A (en) * 2021-10-20 2022-02-08 思创医惠科技股份有限公司 Anti-theft monitoring device and method for commodities in box

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114023029A (en) * 2021-10-20 2022-02-08 思创医惠科技股份有限公司 Anti-theft monitoring device and method for commodities in box

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