JPH07153220A - Cartridge shutter - Google Patents

Cartridge shutter

Info

Publication number
JPH07153220A
JPH07153220A JP32090293A JP32090293A JPH07153220A JP H07153220 A JPH07153220 A JP H07153220A JP 32090293 A JP32090293 A JP 32090293A JP 32090293 A JP32090293 A JP 32090293A JP H07153220 A JPH07153220 A JP H07153220A
Authority
JP
Japan
Prior art keywords
shutter
opening
closing
case
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP32090293A
Other languages
Japanese (ja)
Inventor
Masaru Ikebe
優 池辺
Yukio Miyazaki
幸夫 宮崎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TDK Corp
Original Assignee
TDK Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TDK Corp filed Critical TDK Corp
Priority to JP32090293A priority Critical patent/JPH07153220A/en
Publication of JPH07153220A publication Critical patent/JPH07153220A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To smoothen the opening and closing of a shutter in a cartridge and to prevent a shutter opening and closing lever from being chipped or damaged even when the shutter lever is made of resin. CONSTITUTION:The shutter 4 having a continuous U-shaped cross section consisting of a shutter upper plate 41, a shutter lower plate 42 and a back surface plate 43, convering an opening part 3 of a case 1 and opening and closing the part 3 is freely slidably provided on the case 1. This cartridge shutter is provided with a shutter opening and closing operation opening on the shutter back surface plate 43, fall-off preventing claw pieces 5 to be fitted into guide grooves provided on an outer surface of the case 1, a lock lever engagement piece 8 formed to be bent on the outer end side of the shutter 4 on its closing side, and a fall-off preventing claw piece to be fitted into a guide groove provided in the case on an extension part of the shutter lower plate. Since an extension part 9 provided with the shutter back surface part 43 and an end peripheral part of the shutter upper plate 41 extendedly to the vicinity of the lock lever engagement piece 8 is provided, a shutter back surface plate part has no notch, so that the shutter opening and closing lever is never entered into the notch to eliminate a catching or a defective opening and closing operation, thus the movement of the shutter is smoothened to remarkably enhance the reliability.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、フレキシブルディス
ク、ハードディスク、特に光ディスクなどをケース内に
回転可能に収納したディスクカートリッジ或いはテープ
状媒体を収納したオーディオ若しくはビデオカセット、
デジタルコンパクトカセットのカートリッジにおけるシ
ャッタに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible disk, a hard disk, in particular, an audio or video cassette having a disk cartridge or a tape medium in which an optical disk or the like is rotatably housed in a case.
The present invention relates to a shutter in a cartridge of a digital compact cassette.

【０００２】[0002]

【従来の技術】一般に、情報媒体、例えば磁気ディス
ク、光ディスク或いは光磁気ディスク或いはテープなど
は、ケースに収納されたカートリッジとして記録・再生
機器にセッティングされて用いられる。従来の、この種
の媒体は、取扱上ゴミやほこりがつきやすく、殊に傷つ
きやすいばかりか、温度変化による影響が大きいため
に、ケースに設けたヘッド挿入孔や駆動軸挿入孔などの
開口をディスク使用・不使用時に開閉するシャッタを備
えることが知られている。2. Description of the Related Art Generally, an information medium such as a magnetic disk, an optical disk, a magneto-optical disk or a tape is set in a recording / reproducing apparatus as a cartridge housed in a case and used. Conventional media of this kind are liable to be dusty or dusty during handling, and are especially vulnerable to damage.In addition, they are greatly affected by temperature changes.Therefore, openings such as the head insertion hole and drive shaft insertion hole provided in the case It is known to include a shutter that opens and closes when a disc is used or not used.

【０００３】[0003]

【発明が解決しようとする課題】従来のカートリッジで
は、ケースの開口部を開閉するシャッタＳは、図８及び
図９に示すようにケース組付上、シャッタ両端部にロッ
ク部ａや爪部ｂ，ガイド部ｃがあって、このシャッタＳ
の背面板部をシャッタ開閉レバーが摺動するのに、ロッ
ク部ａやガイド部ｃのある背面側の摺動部には切欠き部
が形成されてしまうので、シャッタ開閉レバーが背面板
を摺動したり切欠きでできた空間に入ったりして、シャ
ッタ開閉レバーが引掛かりやすくなって、スムーズにシ
ャッタを開閉操作できないし、金属シャッタを合成樹脂
製のシャッタ開閉レバーで操作する場合には、レバーを
削ってしまい削粉発生による悪結果となったり、レバー
としての機能が喪失してしまうなどの不具合が生じ、耐
久性並びに信頼性の上で問題があった。本発明は、これ
ら従来の欠点を排除しようとするもので、シャッタの摺
動操作を軽快にし、シャッタ開閉レバーがシャッタに引
っ掛かったり、樹脂レバーを削ったりすることなく摺動
性を良くしてスムーズに操作でき、動作不良となること
もなく、安全性を高めて信頼性の向上と、製作も容易で
安価なカートリッジのシャッタとしようとするものであ
る。In the conventional cartridge, the shutter S that opens and closes the opening of the case is mounted on the case as shown in FIGS. 8 and 9, and the lock portion a and the claw portion b are provided at both ends of the shutter. , There is a guide part c, and this shutter S
Although the shutter opening / closing lever slides on the back plate of the device, a notch is formed in the sliding part on the back side including the lock part a and the guide part c. Therefore, the shutter opening / closing lever slides the back plate. If the shutter opening / closing lever cannot be operated smoothly because the shutter opening / closing lever is easily caught due to movement or entering into a space created by a notch, when operating the metal shutter with the synthetic resin shutter opening / closing lever. However, there were problems in terms of durability and reliability, such as scraping the lever, resulting in bad results due to generation of shavings, and loss of the function as the lever. The present invention is intended to eliminate these drawbacks of the prior art, and makes the sliding operation of the shutter light, and improves the slidability without causing the shutter opening / closing lever to be caught in the shutter or scraping the resin lever. The present invention aims to provide a shutter for a cartridge which can be operated at a low cost and which does not cause a malfunction, which enhances safety, improves reliability, and is easy to manufacture and inexpensive.

【０００４】[0004]

【課題を解決するための手段】本発明は、記録再生用ヘ
ッドや駆動部などを挿入しうる開口部を有するケースの
内部に媒体を収納し、該開口部を覆って開閉するシャッ
タ上板とシャッタ下板とを背面板で連続した断面コ字状
のシャッタをケースに摺動自在に備え、該背面板にシャ
ッタ開閉操作用開口とシャッタのロックレバー係合片と
を備え、シャッタ下板の延長部に、ケースに設けた案内
溝に嵌入する抜止め爪片を備えたカートリッジのシャッ
タにおいて、少なくともシャッタの閉じる側の前記シャ
ッタ背面板およびシャッタ上板の端縁部を前記ロックレ
バー係合片の近傍まで延設した延長部を備えたものであ
る。According to the present invention, there is provided a shutter upper plate for accommodating a medium in a case having an opening into which a recording / reproducing head, a driving unit and the like can be inserted, and opening and closing the opening by covering the medium. The shutter lower plate is provided with a shutter having a U-shaped cross section continuous with a back plate slidably on the case, and the back plate is provided with a shutter opening / closing operation opening and a lock lever engaging piece of the shutter. In a shutter of a cartridge having an extension portion with a retaining claw piece that fits in a guide groove provided in a case, at least the edge portions of the shutter back plate and the shutter upper plate on the shutter closing side are provided with the lock lever engaging piece. Is provided with an extension portion extending to the vicinity of.

【０００５】[0005]

【作用】シャッタ背面板にシャッタ開閉操作用開口とシ
ャッタのロックレバー係合片とを備え、シャッタ下板の
延長部にケースに設けた案内溝に嵌入する抜止め爪片を
備えたカートリッジのシャッタで、シャッタの閉じる側
の前記シャッタ背面板およびシャッタ上板の端縁部を前
記ロックレバー係合片の近傍まで延設した延長部を備え
たことで、シャッタ背面板部に切欠きがなくなり、シャ
ッタ開閉レバーがシャッタ背面板部を摺動する際に引掛
かり現象がなくなって、シャッタ開閉操作をスムーズに
すると共に、シャッタ開閉レバーが合成樹脂レバーであ
っても削れ現象の発生もなくて信頼性を著しく高められ
て用いられる。A cartridge shutter having a shutter rear opening and closing opening and a shutter lock lever engaging piece on the shutter rear plate, and a retaining claw piece that fits into a guide groove provided on the case at an extension of the shutter lower plate. Thus, the shutter back plate and the shutter upper plate on the side where the shutter is closed are provided with an extended portion that extends to the vicinity of the lock lever engaging piece, so that there is no notch in the shutter back plate. There is no catching phenomenon when the shutter open / close lever slides on the rear plate of the shutter, which makes the shutter open / close operation smooth, and even if the shutter open / close lever is a synthetic resin lever, no scraping phenomenon occurs and reliability is improved. Is used after being significantly increased.

【０００６】[0006]

【実施例】本発明の実施例を図１乃至図５のディスクカ
ートリッジの例で説明すると、ケース１の内部に情報媒
体のディスク状媒体２を収納し、ヘッド挿入孔などの開
口部３を覆って開閉するシャッタ上板４1 とシャッタ下
板４2 とを背面板４3 で連続した断面コ字状のシャッタ
４をケース１に摺動自在に備え、該シャッタ４のシャッ
タ下板４2 の両端に延設したガイド板７に、ケース１の
外面に設けた案内溝に嵌入する抜止め爪片５を設け、か
つシャッタ摺動部のケース側面より内部方向に挿入保持
するガイド片６をシャッタが開く側の端部にガイド板７
を介して設け、また、シャッタ４の閉じる側の一方の前
記ガイド板７の外端側に折曲形成されたロックレバー係
合片８とを備えたカートリッジのシャッタであって、前
記シャッタ背面板４3 およびシャッタ上板４1 の端縁部
を前記ロックレバー係合片８の近傍まで延設した折曲片
９1 つきの延長部９を備えてある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the example of the disk cartridge shown in FIGS. 1 to 5. A disk-shaped medium 2 as an information medium is housed in a case 1 and an opening 3 such as a head insertion hole is covered. the shutter upper 4 1 and a U-shaped shutter 4 consecutive a shutter lower plate 4 2 in the back plate 4 3 to open and close slidably provided on the case 1 Te, of the shutter lower plate 4 2 of the shutter 4 The guide plates 7 extending at both ends are provided with retaining claw pieces 5 that fit into guide grooves provided on the outer surface of the case 1, and a guide piece 6 that is inserted and held inward from the side surface of the shutter sliding portion is shuttered. Guide plate 7 at the end of the open side
And a lock lever engaging piece 8 bent and formed on the outer end side of one of the guide plates 7 on the closing side of the shutter 4, and the shutter back plate 4 3 and an upper edge portion of the shutter upper plate 4 1 are provided with an extending portion 9 with a bending piece 9 1 extending to the vicinity of the lock lever engaging piece 8.

【０００７】この場合、前記シャッタ４の抜止め爪片５
及びガイド片６の部分に対応するシャッタ背面板部のう
ち少なくともシャッタ開閉レバー（図示せず）が接触摺
動する部分には、切欠きや開口を設けないように配慮さ
れ、シャッタ開閉をスムーズにすると共に、たとえシャ
ッタ開閉レバーが合成樹脂であってもレバーの損傷を最
小限に抑えるようにしてある。また、前記延長部９は、
少なくともシャッタ４の閉じる側の一方端縁、即ちシャ
ッタ背面板４3 とシャッタ上板４1 との両端縁とを延長
してロックレバー係合片８の近傍位置で抜止め爪片５に
対向して備えられている。In this case, the retaining claw piece 5 of the shutter 4
Also, it is considered not to provide a notch or an opening at least in a portion of the shutter back plate portion corresponding to the guide piece 6 where the shutter opening / closing lever (not shown) comes into contact with and slides, so that the shutter opening / closing can be smoothly performed. In addition, even if the shutter opening / closing lever is made of synthetic resin, damage to the lever is minimized. Also, the extension 9 is
At least one end edge of the shutter 4 on the closing side, that is, both end edges of the shutter rear plate 4 3 and the shutter upper plate 4 1 are extended to face the retaining claw piece 5 in the vicinity of the lock lever engaging piece 8. It is equipped with.

【０００８】図中、１０はシャッタエリアで断面コ字状
のシャッタ４を摺動させるためのもので、凹面でケース
外面に形成される。１１はディスク用ハブ、１２はハブ
嵌合孔、１３は消去防止用プラグ、１４はシャッタロッ
ク、１５は媒体収納部、１６はラベルアリア、１７は可
視部、１８はシャッタ開閉操作用の開口でシャッタ背面
板に設けられる。なお、前記ケース１は、フロッピーデ
ィスク、コンパクトディスクやビデオディスク、光ディ
スクなどのディスク状媒体またはオーディオやビデオ或
いはデジタルコンパクトカッセトなどのテープ状媒体を
収納した各種のカートリッジ形態のシェルに選んで構成
される。In the figure, 10 is a shutter area for sliding the shutter 4 having a U-shaped cross section, which is a concave surface formed on the outer surface of the case. Reference numeral 11 is a disk hub, 12 is a hub fitting hole, 13 is an erasure prevention plug, 14 is a shutter lock, 15 is a medium storage section, 16 is a label area, 17 is a visible section, and 18 is an opening for opening and closing the shutter. It is provided on the shutter back plate. Incidentally, the case 1 is selected and configured as various cartridge-shaped shells for accommodating a disk-shaped medium such as a floppy disk, a compact disk, a video disk, an optical disk or a tape-shaped medium such as an audio, video or a digital compact cassette. .

【０００９】なお、前記シャッタ４は、金属製或いは合
成樹脂シャッタであって、ケース前側面より内部に入る
方向に突設した摺動用ガイド片６の根元部位をケース側
に形成した面取部或いは凹部に対応または嵌合する補強
部を備え、シャッタの強度を高め信頼性を向上させ、ま
たシャッタエリア１０に連続する凹部１０1 をケース１
に形成し、該凹面１０1 に折曲片９1 が嵌装されること
が考慮されている。The shutter 4 is a metal or synthetic resin shutter and has a chamfered portion formed on the case side with a root portion of a sliding guide piece 6 projecting inward from the front side surface of the case. The case 1 is provided with a reinforcing portion that corresponds to or fits into the concave portion to increase the strength and reliability of the shutter and also to form the concave portion 10 1 continuous with the shutter area 10 into the case 1.
It is considered that the bent piece 9 1 is fitted on the concave surface 10 1 .

【００１０】図６及び図７の実施例では、前記シャッタ
４の延長部９が、シャッタの閉じる側と開く側とに設け
られ、即ち前記シャッタ上板４に沿った折曲片９1 のあ
る延長部９で前記シャッタ背面板４3 の両端に備えられ
ていて、抜止め爪片５とでケース１を挟むように構成し
てある。[0010] In the embodiment of FIGS. 6 and 7, the extension 9 of the shutter 4 is provided in the side opening and the side closing of the shutter, i.e. a said shutter upper 4 bent piece 9 1 along the an extension portion 9 are provided at both ends of the shutter rear plate 4 3, and are configured to sandwich the case 1 and the retaining claw piece 5.

【００１１】[0011]

【発明の効果】本発明は、シャッタ背面板にシャッタ開
閉操作用開口とシャッタのロックレバー係合片とを備
え、シャッタ下板の延長部にケースに設けた案内溝に嵌
入する抜止め爪片を備えたカートリッジのシャッタであ
って、少なくともシャッタの閉じる側の前記シャッタ背
面板およびシャッタ上板の端縁部を、前記ロックレバー
係合片の近傍まで延設した延長部を備えたことにより、
シャッタ開閉レバーが摺動されるシャッタ背面板部分に
切欠きや開口がなくなり、シャッタ開閉レバーが引っ掛
かったり、無理な摺動をすることがなく、シャッタをス
ムーズに開閉操作でき、しかもシャッタ開閉レバーを合
成樹脂としても金属シャッタの開閉操作に支障なく用い
られ、シャッタ作動不良となることなく安全に開閉操作
でき、しかもシャッタ開閉時のレバーに対するこすれ、
或いは削れなど損傷や削れ粉の発生現象が少ないので、
レバーとして機能を喪失することなくドロップアウトな
どの記録・再生に支障を来すこともなく信頼性を著しく
高めることができるし、品質向上並びに耐久性向上など
がはかられ、製作も容易・安価であるなどの実用上の効
果がある。According to the present invention, the shutter back plate is provided with the shutter opening / closing operation opening and the shutter lock lever engaging piece, and the retaining claw piece fitted in the guide groove provided in the case at the extension of the shutter lower plate. A shutter of a cartridge provided with, at least the edge of the shutter back plate and the shutter upper plate on the closing side of the shutter is provided with an extension portion extending to the vicinity of the lock lever engaging piece,
The shutter back plate on which the shutter open / close lever slides has no notches or openings, so the shutter open / close lever can be smoothly opened / closed without the shutter open / close lever being caught or forced to slide. As a synthetic resin, it can be used to open and close metal shutters without any problems, and can be opened and closed safely without causing shutter malfunction.
Or, since there are few damages such as shaving and the generation of shavings powder,
The reliability can be remarkably improved without losing the function as a lever, the recording / reproduction such as dropout is not hindered, the quality and the durability are improved, and the manufacturing is easy and inexpensive. There are practical effects such as

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の実施例の分離状態の斜視図である。FIG. 1 is a perspective view of an embodiment of the present invention in a separated state.

【図２】図１の例のシャッタの拡大平面図である。FIG. 2 is an enlarged plan view of the shutter of the example of FIG.

【図３】図２の例のシャッタの正面図である。FIG. 3 is a front view of the shutter of the example of FIG.

【図４】図２の例のシャッタの背面図である。FIG. 4 is a rear view of the shutter of the example of FIG.

【図５】図２の例のシャッタの側面図である。5 is a side view of the shutter of the example of FIG.

【図６】本発明の他の実施例のシャッタの拡大平面図で
ある。FIG. 6 is an enlarged plan view of a shutter according to another embodiment of the present invention.

【図７】図６の例のシャッタの背面図である。FIG. 7 is a rear view of the shutter of the example of FIG.

【図８】従来の例のシャッタの拡大平面図である。FIG. 8 is an enlarged plan view of a conventional shutter.

【図９】図８の例の背面図である。9 is a rear view of the example of FIG.

【符号の説明】[Explanation of symbols]

１ ケース ２ ディスク状媒体 ３ 開口 ４ シャッタ ４1 シャッタ上板 ４2 シャッタ下板 ４3 シャッタ背面板 ５ 抜止め爪片 ６ ガイド片 ７ ガイド板 ８ ロックレバー係合片 ９ 延長部 ９1 折曲片 １０ シャッタエリア １０1 凹面部 １８ シャッタ開閉操作用開口1 Case 2 Disk Medium 3 Opening 4 Shutter 4 1 Shutter Upper Plate 4 2 Shutter Lower Plate 4 3 Shutter Back Plate 5 Detachment Claw Piece 6 Guide Piece 7 Guide Plate 8 Lock Lever Engaging Piece 9 Extending Section 9 1 Bending Piece 10 Shutter area 10 1 Concave part 18 Opening / closing of shutter

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 記録再生用ヘッドや駆動部などを挿入し
うる開口部を有するケースの内部に媒体を収納し、該開
口部を覆って開閉するシャッタ上板とシャッタ下板とを
背面板で連続した断面コ字状のシャッタをケースに摺動
自在に備え、該背面板にシャッタ開閉操作用開口とシャ
ッタのロックレバー係合片とを備え、シャッタ下板の延
長部に、ケースに設けた案内溝に嵌入する抜止め爪片を
備えたカートリッジのシャッタにおいて、少なくともシ
ャッタの閉じる側の前記シャッタ背面板およびシャッタ
上板の端縁部を前記ロックレバー係合片の近傍まで延設
した延長部を備えたことを特徴とするカートリッジのシ
ャッタ。1. A back plate includes a shutter upper plate and a shutter lower plate for accommodating a medium inside a case having an opening into which a recording / reproducing head, a driving unit and the like can be inserted, and covering and opening the medium. A continuous shutter having a U-shaped cross section is slidably provided in the case, a shutter opening / closing operation opening and a shutter lock lever engaging piece are provided in the rear plate, and the shutter is provided in the case at an extension of the lower plate of the shutter. In a shutter of a cartridge provided with a retaining claw that fits in a guide groove, an extension portion in which at least end edges of the shutter back plate and the shutter upper plate on the shutter closing side are extended to the vicinity of the lock lever engaging piece. A cartridge shutter, comprising:
JP32090293A 1993-11-29 1993-11-29 Cartridge shutter Pending JPH07153220A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP32090293A JPH07153220A (en) 1993-11-29 1993-11-29 Cartridge shutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32090293A JPH07153220A (en) 1993-11-29 1993-11-29 Cartridge shutter

Publications (1)

Publication Number Publication Date
JPH07153220A true JPH07153220A (en) 1995-06-16

Family

ID=18126549

Family Applications (1)

Application Number Title Priority Date Filing Date
JP32090293A Pending JPH07153220A (en) 1993-11-29 1993-11-29 Cartridge shutter

Country Status (1)

Country Link
JP (1) JPH07153220A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6542459B2 (en) 1998-05-28 2003-04-01 Tdk Corporation Cartridge and manufacturing method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6542459B2 (en) 1998-05-28 2003-04-01 Tdk Corporation Cartridge and manufacturing method thereof

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