588332 A7 _B7_ 五、發明説明（j 【技術領域】 (請先閱讀背面之注意事項再填寫本頁) 本發明是關於碟片匣爲了可用來旋轉收納光碟等的碟 片狀記錄媒體。 【背景技術】 這種碟片匣，例如在日本特開2000 - 90626號公報所揭 示，在上一半及下一半之間形成旋轉自如地用以收納光 碟，在其前面，形成有切口部該切口部是將碟片匣安裝在 驅動器時使組裝拾音部等的記錄再生機構可進入，進而， 在下側面是形成有開口部及驅動用開口部該兩部是從該切 口部連接在碟片半徑方向。 又，前述前面切口部及連接於該切口部的開口部、驅 動用開口部，是在未安裝於驅動器的狀態下利用內裝擋板 被密閉。該內裝擋板，是沿著下一半的上側面形成被引 導。 經濟部智慧財產局員工消費合作社印製 前述內裝擋板，是由第1擋板構件及第2擋板構件2 個構件所構成，當兩者相互接近並擋接時，是用來閉塞前 述開口部及驅動用開口部，當搖動於相反方向並分開時， 形成能打開開口部及驅動用開口部。 又，在前述第1擋板構件，是具有：關閉前述開口部 及驅動用開口部約一半的葉片部分；及從該葉片部分的外周 端立起呈垂直，且在外側延伸呈圓弧狀的帶狀構件；而該帶 狀構件，是形成能開閉前述前面切口部。 前述第1擋板構件中的帶狀構件的端部，是突出於碟 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） -4 _ 588332 Α7 Β7 五、發明説明（2 (請先閲讀背面之注意事項再填寫本頁) 片匣的側面，當碟片匣插入到驅動器時，該驅動器側構件 拉上帶狀構件的端部形成能打開第1擋板構件。又，第2 擋板構件，是當第1擋板構件驅動呈開方向時，藉此形成 能被推開。 進而，在閉塞方向，第1擋板構件，是前述帶狀構件 與前述在反方向藉由推入被關閉，而第2擋板構件是利用 彈簧，彈力地擋接在前述關閉的第1擋板構件。 如上述，第2擋板構件是利用彈簧（擋板彈簧）被彈 推，所以將前述第1及第2擋板構件配置在預定位置， 且，將彈簧裝入，則這些第1及第2擋板構件因爲無壓入 構件，所以在作業中會有使前述彈簧脫落的問題。 又，通常當碟片厘插入到驅動器時，從驅動器側使基 準銷進入爲了進行定位基準銷是設在碟片匣側。 這種情況下，基準孔是與碟片匣形成在一體軸的中 心，並維持剛性是一般的情形，但是爲了這種基準孔而設 置軸使構造形成複雜化，會有確保各構件的空間，或由基 準孔使灰塵進入的問題。 經濟部智慧財產局員工消費合作社印製 進而，如上述，第2擋板構件是利用彈簧被彈推於閉 塞方向，但是該第2擋板構件，儘可能使用既輕又薄的樹 脂等所構成爲佳，這種情況下，藉由彈簧及擋板構件的擋 接，會使該第2擋板構件容易變形，由於變形會容易產生 動作不良的問題。 即，將第2擋板構件藉由彈推於呈閉方向的彈簧的彈 力，及將第2擋板構件從作用於呈開方向的第1擋板件的 本紙張尺度適用中國國家標準（CNS ) A4規格（2Ί0Χ297公釐) ' -5- 588332 A7 _ B7 五、發明説明（j (請先閱讀背面之注意事項再填寫本頁) 力量，在第2擋板構件的不同位置爲了作用於不同方向 所以第2擋板構件的根部部分（形成如縱彎曲的狀態）有 浮出的傾向。 進而，前述第1擋板構件及第2擋板構件，皆滑動於 下殻，但習知技術，不管擋板構件，或下殼皆因爲光澤面 形成面接觸所以接觸抵抗很大，會產生擋板構件不能圓滑 滑動情況的問題。 進而又，爲了彈推第2擋板構件的彈簧，是屬扭轉螺 旋彈簧，而其前端爲自由端，所以隨著擋板構件的搖動， 與此滑動接觸的構件會有切削的問題。 又，當閉塞第1擋板構件時，與下殼等擋接的範圍很 窄，因爲使負荷集中，所以該第1擋板構件會有容易破損 的問題。 進而，前述第1擋板構件及第2擋板構件，因爲可呈 開閉動作，將下殻等，在與厚度方向兩側的至少其中一方 之間設有預定的排屑孔，但這是，因爲在前述開口部的位 置打開，所以會有容易侵入灰塵的問題。 經濟部智慧財產局員工消費合作社印製 本發明是有鑑於上述先前問題而創作，其目的是提供 一種碟片匣，該碟片匣是容易組合，爲了彈推第2擋板構 件組裝彈簧時，不要使彈簧脫落。 又，當載置到驅動器時，爲了嵌合從驅動器側進入而 來基準銷的基準孔，藉由設置於第2擋板構件的搖動軸， 將結構做爲簡單，用來確保空間，並且從基準孔可防止灰 塵進入。 本紙張尺度適用中.國國家標準（CNS ) A4規格（210X297公釐） -6 - 588332 A7 _B7 五、發明説明（j (請先閱讀背面之注意事項再填寫本頁) 進而，提供一種碟片匣，其目的在於：將第2擋板構 件’藉由彈簧及第1擋板構件的擋接用來抑制變形，並防 止其動作不良。 進而又，提供一種碟片匣，其目的在於：使第1擋板 構件、第2擋板構件及下殻等構件減低滑動抵抗，可獲得 圓滑地開閉動作。 本發明是經由一而再的精心硏究，將爲了彈推第2擋 板構件的第2擋板彈簧，組裝第1及第2擋板構件到下殼 並壓入到中框之後可固定，可達成上述目的。 又，將第2擋板構件的搖動軸兼用基準孔可達成上述 目的。 即，藉由如下的本發明可解決上述課題。 經濟部智慧財產局員工消費合作社印製 (1)•一種碟片匣，其特徵爲：將上殻、中心框及下 殻重疊於厚度方向並進行結合所構成，在前述上殼及中心 框之間的碟片收納空間將碟片狀記錄媒體收納成可旋轉， 並在前述中心框及下殼，將前述收容後的碟片狀記錄媒體 的信號記錄領域的一部分，在碟片半徑方向跨越內外周使 露出的記錄及/或再生用的中心框開口部及下殻開口部以略 呈同一形狀形成於疊合位置，並在前述中心框及下殼之 間，使開閉前述中心框開口部及下殻開口部的第1擋板構 件及第2擋板構件，沿著該中心框及下殼的對置的平面設 置呈搖動自如，而前述第1擋板構件，是具備略呈扇形的 擋板葉片部用來開閉前述中心框開口部及下殻開口部的外 側略呈一半，而前述第2擋板構件，是利用前述第1擋板 本紙張尺度適用中.國國家標準（CNS ) A4規格（210X29*7公釐） 588332 A7 B7 五、發明説明（g» (請先閱讀背面之注意事項存填寫本頁) 構件將開閉的前述中心框開口部及下殼開口部的剩餘的略 呈一半，與前述擋板葉片部在反方向進行搖動並開閉的葉 片構件，在前述碟片收容空間的外側位置利用設於下殼的 搖動軸樞支呈搖動自如，並且對於前述第1擋板構件的擋 板葉片部利用第1擋板彈簧形成彈推於呈閉方向，而前述 第1擋板彈簧，是使其中一方的作用點，在前述第2擋板 構件中的呈閉方向前端，且，在前述搖動軸近傍，使另一 方的作用點在該第2擋板構件的搖動範圍外的領域中的前 述下殼及中心框的其中一方，分別被設定，而前述中心 框，是對於前述其中一方的作用點鄰接於厚度方向的範 圍，形成孔或切口使該其中一方的作用點露出。 (2 ) · ( 1 )的碟片匣，其特徵爲：使前述一方的作 用點露出的孔或切口，是在前述碟片收容空間的外側，使 前述一方的作用點進行搖動並形成在來到的範圍。 經濟部智慧財產局員工消费合作社印製 (3 ) —種碟片匣，其特徵爲：將上殻、中心框及下殼 重疊於厚度方向並進行結合所構成，在前述上殼及中心框 之間的碟片收納空間將碟片狀記錄媒體收納成可旋轉，並 在前述中心框及下殼，將前述收容後的碟片狀記錄媒體的 信號記錄領域的一部分，在碟片半徑方向跨越內外周，使 露出的記錄及/或再生用的中心框開口部及下殻開口部以略 呈同一形狀形成於疊合位置，並在前述中心框及下殼之 間，使開閉前述中心框開口部及下殻開口部的第丨擋板構 件及第2擋板構件，沿著該中心框及下殼的對置的平面設 置呈搖動自如，而前述第1擋板構件，是具備略呈扇形的 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -8- 588332 A7 _B7 _ 五、發明説明（d (請先閱讀背面之注意事項再填寫本頁) 擋板葉片部用來開閉前述中心框開口部及下殻開口部的外 側略呈一半，且，前述第2擋板構件，是利用前述第1擋 板構件將被開閉的前述中心框開口部及下殻開口部的剩餘 的略呈一半，與前述擋板葉片部在反方向進行搖動並開閉 的葉片構件，在前述碟片收容空間的外側位置利用設於下 殼的搖動軸樞支呈搖動自如，而前述搖動軸，是在記錄及/ 或再生時，將插入驅動側的定位用基準銷的基準孔具備在 同軸上。 (4) . (3)的碟片匣，其特徵爲：前述搖動軸是從 前述下殻到上殻爲止利用連續地立起的周壁所構成，而前 述基準孔是形成在前述周壁的內側，前述上殼，是用來構 成該基準孔的底面。 (5) . (3)的碟片匣，其特徵爲：前述搖動軸是從 前述下殼到上殼方向利用連續地立起的周壁所構成，而前 述基準孔，是形成在前述周壁的內側，且，在該周壁的立 起方向前端及途中的其中一方，設有底面堵塞前述基準 經濟部智慈財產局員工消費合作杜印製 (6) · (4)或（5)的碟片匣，其特徵爲：前述第2 擋板構件，是對前述第1擋板構件的擋板葉片部利用第1 擋板彈簧彈推於呈閉方向。 (7) —種碟片匣，其特徵爲：將上殼、中心框及下殼 重疊於厚度方向並進行結合所構成’在前述上殼及中心框 之間的碟片收納空間將碟片狀記錄媒體收納成可旋轉，並 在前述中心框及下殼’將則述收谷後的碟片狀目己錄媒體的 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -9 - 588332 A7 _____B7588332 A7 _B7_ V. Description of the invention (j [Technical Field] (Please read the precautions on the back before filling out this page) The present invention relates to a disc magazine that can be used to rotate and store disc-shaped recording media such as optical discs. [Background Technology] Such a disc cartridge is disclosed in, for example, Japanese Patent Laid-Open No. 2000-90626, and a disc is rotatably formed between the upper half and the lower half to accommodate the optical disc. A cutout portion is formed on the front face of the disc cartridge. When the disc cartridge is mounted on the drive, a recording / reproducing mechanism such as an assembly pickup section can be accessed. Further, an opening portion and a driving opening portion are formed on the lower side, and the two portions are connected to the disc radial direction from the cutout portion. The front cutout portion, the opening portion connected to the cutout portion, and the driving opening portion are sealed by a built-in baffle in a state where it is not attached to the driver. The built-in baffle is formed along the upper half of the lower half. The side formation is guided. The Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs prints the above-mentioned built-in baffle, which is composed of two members, the first baffle member and the second baffle member. When approaching and blocking, it is used to close the opening and the driving opening, and when it is shaken in the opposite direction and separated, the opening and the driving opening are formed. The first baffle member is It has a blade portion that closes approximately half of the opening portion and the driving opening portion; and a band-shaped member that is vertical from the outer peripheral end of the blade portion and extends in an arc shape on the outside; and the band-shaped member is The front cutout portion can be opened and closed. The end portion of the band-shaped member in the first baffle member is protruded from the paper size of the disc and applies the Chinese National Standard (CNS) A4 specification (210X 297 mm) -4 _ 588332 Α7 Β7 V. Description of the invention (2 (Please read the precautions on the back before filling in this page) The side of the cassette. When the disc cassette is inserted into the drive, the drive side member pulls the end of the band-shaped member to open the first section. 1 baffle member. The second baffle member can be pushed open when the first baffle member is driven in the opening direction. Further, in the closing direction, the first baffle member has the aforementioned band shape. Building and Front The second baffle member is closed by pushing in in the opposite direction, and the second baffle member is elastically blocked by the previously closed first baffle member. As described above, the second baffle member is a spring (baffle spring). Being pushed, the first and second baffle members are arranged at predetermined positions, and when the spring is installed, these first and second baffle members are not press-fitted, so they will be used during operation. The aforementioned spring comes off. Also, when the disc is inserted into the drive, the reference pin is usually inserted from the drive side to locate the reference pin on the magazine side. In this case, the reference hole is connected to the magazine. It is common to form the center of an integrated shaft and maintain rigidity. However, providing a shaft for such a reference hole complicates the structure, and there is a problem that space for each member is secured, or dust enters through the reference hole. Printed by the Employees ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. As described above, the second baffle member is elastically pushed in the closing direction by a spring. However, the second baffle member is made of light and thin resin. Preferably, in this case, the second baffle member is easily deformed by the blocking of the spring and the baffle member, and the problem of poor operation is likely to occur due to the deformation. That is, the paper size of the second baffle member that is pushed in the closing direction by the spring, and the second baffle member that acts on the first baffle in the open direction are in accordance with the Chinese national standard (CNS). ) A4 size (2Ί0 × 297mm) '-5- 588332 A7 _ B7 V. Description of the invention (j (please read the precautions on the back before filling this page) strength, in order to act differently at different positions of the second baffle member Therefore, the root portion of the second baffle member (formed in a state of being bent vertically) tends to float out. Furthermore, the first baffle member and the second baffle member both slide on the lower case, but conventional techniques, Regardless of the baffle member or the lower case, since the glossy surface forms surface contact, the contact resistance is very large, which may cause the baffle member not to slide smoothly. Furthermore, the spring of the second baffle member is torsion in order to spring. The coil spring has a free end, so the sliding contact member may have a cutting problem as the baffle member is shaken. When the first baffle member is closed, the range of contact with the lower case and the like is blocked. Very narrow because making negative Since the load is concentrated, the first baffle member may be easily broken. Furthermore, the first baffle member and the second baffle member may be opened and closed, and the lower case and the At least one of them is provided with a predetermined chip discharge hole, but this is because it is opened at the position of the aforementioned opening, so there is a problem that dust can easily penetrate. The Ministry of Economic Affairs, Intellectual Property Bureau, Employee Consumer Cooperative, printed this invention in view of the fact that The above problem was created in order to provide a disc cartridge that is easy to assemble, so as not to detach the spring when the second baffle member is pushed to assemble the spring. In addition, when mounted on the driver, The reference hole from which the reference pin enters from the driver side is fitted, and the swing shaft provided on the second baffle member has a simple structure to ensure space and prevent dust from entering through the reference hole. Applicable Chinese National Standard (CNS) A4 specification (210X297mm) -6-588332 A7 _B7 V. Description of invention (j (please read the precautions on the back before filling this page) A disc cartridge whose purpose is to use a second baffle member 'through a spring and a stopper of the first baffle member to suppress deformation and prevent malfunction thereof. Furthermore, a disc cartridge is provided for the purpose The purpose is to reduce the sliding resistance of the first baffle member, the second baffle member, and the lower case to obtain a smooth opening and closing action. The present invention is to carefully push the second baffle to push the second baffle The second baffle spring of the member can be fixed by assembling the first and second baffle members to the lower case and press-fitted to the middle frame, and the above purpose can be achieved. It is also possible to use the rocking shaft of the second baffle member as a reference hole. The above-mentioned object is achieved. That is, the above-mentioned problems can be solved by the following invention. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs (1) A disc cartridge characterized by overlapping the upper case, the center frame and the lower case Composed in the thickness direction, the disc-shaped recording medium is rotatably stored in the disc storage space between the upper case and the center frame, and the accommodated discs are stored in the center frame and the lower case. Recording media A part of the signal recording area is formed in the overlapping position of the center frame opening and the lower case opening for recording and / or reproduction that are exposed across the inner and outer peripheries in the radial direction of the disc. Between the lower case, the first baffle member and the second baffle member that open and close the center frame opening portion and the lower case opening portion are arranged to swing freely along the plane opposite to the center frame and the lower case. The first baffle member is provided with a slightly fan-shaped baffle blade portion for opening and closing the outside of the center frame opening portion and the lower case opening portion, and the second baffle member uses the first baffle. This paper size is applicable. National National Standard (CNS) A4 specification (210X29 * 7mm) 588332 A7 B7 V. Description of the invention (g »(Please read the notes on the back first and fill in this page) The aforementioned center where the components will open and close The remaining half of the frame opening portion and the lower case opening portion is a blade member that swings and opens and closes with the baffle blade portion in the opposite direction, and uses a swing shaft pivot provided in the lower case at an outer position of the disc storage space. The support is free to swing, and the baffle blade portion of the first baffle member is pushed in the closing direction by a first baffle spring forming spring. The first baffle spring is one of the action points of the first baffle spring. The second baffle member has a front end in a closed direction and one of the lower case and the center frame in a region outside the swing range of the second baffle member near the rocking shaft. Are set respectively, and the center frame is a range in which one of the action points is adjacent to the thickness direction, and a hole or a cut is formed to expose the one action point. (2) · (1) The disc cartridge is characterized in that the hole or cutout for exposing the aforementioned one point of action is outside the disc accommodation space, and the aforementioned one point of action is shaken and formed To the range. Printed by the Employees' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs (3) — a kind of disc cartridge, which is characterized by overlapping and combining the upper case, the center frame and the lower case in the thickness direction. The disc-shaped recording medium is rotatably accommodated in the disc storage space, and a part of the signal recording area of the accommodated disc-shaped recording medium spans the inside and outside of the disc in the center frame and the lower case. The central frame opening and the lower case opening for recording and / or reproduction are formed in a superposed position at substantially the same shape, and the central frame opening is opened and closed between the central frame and the lower case. The first and second baffle members and the second baffle member that are connected to the opening of the lower case are freely arranged along the plane opposite to the center frame and the lower case, and the first baffle member is provided with a slightly fan shape. This paper size applies to Chinese National Standard (CNS) A4 specification (210X297 mm) -8- 588332 A7 _B7 _ V. Description of the invention (d (Please read the precautions on the back before filling this page) The baffle blade part is used to open and close before The outsides of the center frame opening portion and the lower case opening portion are slightly half, and the second baffle member is a remaining outline of the center frame opening portion and the lower case opening portion to be opened and closed by the first baffle member. The blade member that is half-way and swings in the opposite direction with the baffle blade portion is opened and closed at the outer position of the disc storage space by a swing shaft provided in the lower case, and the swing member is free to swing. During recording and / or reproduction, the reference hole inserted into the positioning reference pin on the drive side is provided on the coaxial. (4). (3) The disc cartridge is characterized in that the swing shaft is from the lower case to the upper part. The shell is made up of a continuous peripheral wall, and the reference hole is formed on the inner side of the peripheral wall, and the upper case is used to form the bottom surface of the reference hole. (5). (3) Disc magazine, It is characterized in that the rocking shaft is formed by a peripheral wall continuously rising from the lower shell to the upper shell, and the reference hole is formed inside the peripheral wall, and at the front end of the peripheral wall in the rising direction and On the way A disc cartridge (6) · (4) or (5) printed by the consumer cooperation of the Intellectual Property Office of the Ministry of Economic Affairs on the bottom side is provided. The feature is that the second baffle member The baffle blade portion of the first baffle member is pushed in the closing direction by the first baffle spring. (7) A disc cartridge characterized in that the upper case, the center frame, and the lower case are overlapped in the thickness direction and The combination constitutes 'the disc storage space between the aforementioned upper case and the center frame stores the disc-shaped recording medium to be rotatable, and the aforementioned central frame and the lower case' will describe the disc-shaped items after harvesting. The paper size of recorded media is applicable to China National Standard (CNS) A4 (210X297 mm) -9-588332 A7 _____B7
五、發明説明（P (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 信號記錄領域的一部分，在碟片半徑方向跨越內外周，且 在碟片厚度方向是在前述下殻的外側，分別使露出的記錄 及/或再生用的中心框開口部及下殻開口部以略呈同一形狀 形成於疊合位置，並在前述中心框及下殻之間，使開閉前 述切口部及前述中心框開口部及下殻開口部的第1擋板構 件及第2擋板構件，沿著該中心框及下殻的對置的平面設 置呈搖動自如，而前述第1擋板構件，是具備略呈扇形的 擋板葉片部用來開閉前述中心框開口部及下殼開口部的外 側略呈一半，且，前述第2擋板構件，是利用前述第1擋 板構件將開閉的前述中心框開口部及下殼開口部的剩餘的 略呈一半，與前述擋板葉片部在反方向進行搖動並開閉的 葉片構件，在前述碟片收容空間的外側位置利用設於下殼 的搖動軸樞支呈搖動自如，並且對前述第1擋板構件的擋 板葉片部利用第1擋板彈簧形成彈推於呈閉方向，前述第2 擋板構件的搖動範圍之中，在前述搖動軸的近傍的前述下 殼的內側面，中心框的下側面，前述第2擋板構件的兩面 或單面之中至少1處突出於厚度方向，形成引導凸部用來 抑制前述第2擋板構件厚度方向的變形。 (8 ) · ( 1 ) 、（ 2 ) 、（ 6 )或（7 )的碟片匣，其特 徵爲：前述第1擋板彈簧是扭轉螺旋彈簧，而其螺旋部是 被裝架在前述搖動軸。 (9) . ( 1 )至（7 )中任何一項的碟片匣，其特徵 爲：前述中心框，是連接於前述中心框開口部並設有形成 於前述碟片收容空間外周的中心框切口部’而前述第1擋 本紙張尺度適用中國國家標準（CNS ) Λ4規格（21〇 x297公釐） -10- 588332 A7 B7 五、發明説明（g> (請先閱讀背面之注意事項再填寫本頁) 板構件，是從前述擋板葉片部的圓弧形狀外周端形成連續 地立起，並形成具備立起滑動部用來開閉前述中心框切口 部，在前述呈開閉時，與前述圓弧形狀外周端移動在同心 的中心周圍。 (10) · (1)至（9)中任何一項的碟片匣，其特徵 爲：前述第1擋板構件及第2擋板構件，是形成可組裝在 前述下殼的內側面，且，前述中心框及下殼，是在前述第1 及第2擋板構件組裝後，相互形成可連結。 (11) . ( 1 )至（10 )中任何一項的碟片匣，其特徵 爲：將前述第1擋板構件、第2擋板構件、中心框及下殼 至少一個構件與其他構件的滑接面形成縐紋加工面。 (1 2 ) · ( 1 )至（11 )中任何一項的碟片匣，其特徵 經濟部智慧財產局員工消費合作社印製 爲：卡止前述第1擋板彈簧一端的第2擋板構件的作用 點，是形成在該第2擋板構件的中心框側表面的彈簧掛鉤 部，並在該第2擋板構件的表面，是在前述鉤部的根部形 成凹部，在該凹部的底面及前述彈簧掛鉤部的背面之間使 前述第1擋板彈簧的一端通過前述凹部進入形成卡止在前 述彈簧掛鉤部的背面。 (13) . ( 1 )至（12 )中任何一項的碟片匣，其特徵 爲：在前述下殼及中心框至少其中一方，在擋接於呈閉塞 狀態的SU述第1檔板構件的閉塞方向端部的位置，設有由 衝擊吸收材料所構成的肋。 (14 ) · ( 1 )至（1 3 )中任何一項的碟片匣，其特徵 爲：前述下殻及中心框至少其中一方中的前述第1擋板構 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -11 - 588332 A7 B7 五、發明説明（j (請先閲讀背面之注意事項再填寫本頁) 件及第2擋板構件的對置面之中，將對應於該至少其中一 方的前述中心框開口部及下殼開口部至少其中一方周邊部 的壁厚，形成比其他部分更厚。 【圖面的簡單說明】 第1圖是顯示有關本發明實施形態例的碟片匣分解斜 視圖。 第2圖是顯示將同碟片匣的下殼及中心框呈重疊狀態 的平面圖。 第3圖是沿著第2圖的I I I - I I I線放大剖面圖。 第4圖是沿著第2圖的I V _ I V線放大剖面圖。 第5圖是顯示同碟片匣中的擋板閉塞狀態的平面圖。 第6圖是顯示同碟片匣的放大剖面圖。 第7圖是同碟片匣的放大剖.面圖。 第8圖是顯示同碟片匣中的第1擋板彈簧的卡止構造 斜視圖。 經濟部智慈財產局員工消費合作社印製 第9圖是顯示第5圖的I X- I X線相當部分的各態樣 放大剖面圖。 第10圖是沿著第2圖的X- X線放大剖面圖。 第11圖是沿著第2圖的X I - X I線放大剖面圖。 第1 2圖是顯示放大同碟片匣中的基準孔其他態樣剖面 圖。 【圖號說明】 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -12- 588332 A7 __B7 五、發明説明（4 10…碟片厘’ 12…上成’ 13 A〜13 D ···承受輪穀， 14…中心框， 14A…肋， 15A〜15D ···插通輪轂， (請先閱讀背面之注意事項再填寫本頁) 16…下殼， 17A〜17D…輪轂， 18…碟片狀記錄媒體， 20…中心框開口部’ 20A、22A…驅動部用開口部， 21、23…厚壁部’ 22…下殼開口部， 23…長孔， 24…補強構件， 24A、26A…底面， 26…下殼補強 構件， 28…周壁部， 28A…碟片收納空間， 3〇… 導槽’ .31…導溝’ 32…擋板， 32A…滑動銷， 33A…滑塊’ 33B…鉤部， 34…第1擋板構件， 34A…擋板葉片部，35A、37A…直線狀端緣，36…第 2擋板構件，36A…搖動軸，36B…補強滑動接觸部， 36E…滑動接觸部， 37B擋接凹部， 37C···引導凹部， 38…滑溝， 39…基準孔， 40…功絲螺釘， 42··•下殻 外壁， 4 4… 上殻外壁， 46…擋板桿 ， 46A···彈簧， 46B…外端， 48…碟片制動機構， 50…彈簧掛鉤部， 50A···凹部， 52…擋板彈簧卡止用 孔 ， 52A…空刀凹 部， 53…銷 ， 54…引導凸部， 56 …衝擊防止用肋， 60…扭轉螺旋彈簧（第1擋板彈簧） 60A…螺旋部， 6 0 B · · · — 端， 60C…另一端， 62…圓筒狀肋， 64…扭轉螺旋彈簧（第2擋板彈簧）。 經濟部智慧財產局員工消費合作社印製 【發明的最佳實施形態】 以下對於本發明的實施形態例參考圖面詳細加以說 明。 本紙張^度適用中國國家標準（CNS ) A4規格（210X297公釐） ^一· ---- 588332 A7 B7_____V. Description of the invention (P (Please read the notes on the back before filling out this page) Part of the field of signal recording printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs spans the inner and outer perimeters of the disc radius and the disc thickness direction The exposed central frame opening and the lower casing opening for recording and / or reproduction are formed at overlapping positions on the outer side of the lower case, respectively, between the central frame and the lower case. The first baffle member and the second baffle member that open and close the cutout portion, the center frame opening portion, and the lower case opening portion are arranged to swing freely along the plane where the center frame and the lower case oppose, and the first 1 The baffle member is provided with a slightly fan-shaped baffle blade portion for opening and closing the outside of the center frame opening portion and the lower case opening portion to be approximately half, and the second baffle member uses the first baffle. The blade member that opens and closes the opening of the center frame opening portion and the lower case opening portion is slightly half, and the blade member that swings in the opposite direction with the baffle blade portion and opens and closes. The side position is pivoted freely by a pivot shaft provided on a lower casing, and the baffle blade portion of the first baffle member is elastically pushed in the closing direction by a first baffle spring. In the swinging range, at least one of the inner side surface of the lower case, the lower side surface of the center frame, and the two or single surfaces of the second baffle member protrudes in the thickness direction from the vicinity of the rocking shaft to form a guide protrusion. (8) · (1), (2), (6) or (7) A disc cartridge for suppressing deformation in the thickness direction of the second baffle member, wherein the first baffle spring is twisted. A coil spring, and a coil portion of the coil spring is mounted on the aforementioned swing shaft. (9). (1) to (7) The disc cartridge of any one of the features, wherein the center frame is connected to the center frame. The opening part is also provided with a cut-out part of the central frame formed on the outer periphery of the aforementioned disc storage space, and the aforementioned first paper size applies the Chinese National Standard (CNS) Λ4 specification (21 × 297 mm) -10- 588332 A7 B7 5 2. Description of the invention (g > (Please read the precautions on the back before (Write this page) The plate member is continuously raised from the arc-shaped outer peripheral end of the baffle blade portion, and has a raised sliding portion for opening and closing the center frame cutout portion. The arc-shaped outer peripheral end moves around the concentric center. (10) · (1) to (9) The disc cartridge according to any one of the above features, wherein the first and second baffle members are: It can be assembled on the inner side of the lower case, and the center frame and the lower case can be connected to each other after the first and second baffle members are assembled. (11). (1) to (10) The disc cartridge of any one of the above features, wherein the sliding contact surface between at least one of the first baffle member, the second baffle member, the center frame, and the lower case and the other members forms a crepe processing surface. (1 2) · The disc cartridge of any one of (1) to (11) is characterized in that it is printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs as: a second baffle member that locks one end of the first baffle spring The point of action is a spring hook portion formed on the side surface of the center frame of the second baffle member, and a recess is formed on the surface of the second baffle member at the root of the hook portion. One end of the first baffle spring is inserted between the back surfaces of the spring hook portions through the recesses to form a lock on the back surfaces of the spring hook portions. (13). The disc cartridge of any one of (1) to (12), characterized in that at least one of the aforementioned lower case and the center frame is blocked by the first baffle member of SU described in a closed state. The position of the end in the closing direction is provided with a rib made of an impact absorbing material. (14) · The disc cartridge of any one of (1) to (1 3), characterized in that the paper size of the aforementioned first baffle structure in at least one of the aforementioned lower case and center frame is applicable to the Chinese national standard ( CNS) A4 specification (210X297 mm) -11-588332 A7 B7 V. Description of the invention (j (please read the precautions on the back before filling this page) and the opposite side of the second baffle member will correspond to The wall thickness of at least one of the central frame opening portion and the lower case opening portion of the at least one of the peripheral frame portions is thicker than the other portions. [Brief Description of the Drawings] FIG. 1 shows an embodiment of the present invention. An exploded perspective view of the disc cartridge. Fig. 2 is a plan view showing a state where the lower case and the center frame of the same disc cartridge are overlapped. Fig. 3 is an enlarged cross-sectional view taken along line III-III of Fig. 2 The figure is an enlarged cross-sectional view taken along the line IV_IV in FIG. 2. FIG. 5 is a plan view showing the closed state of the shutter in the same disc cartridge. FIG. 6 is an enlarged cross-sectional view showing the same disc cartridge. The figure is an enlarged sectional view of the same disc cartridge. Figure 8 shows the same disc cartridge The oblique view of the locking structure of the first baffle spring in the print. Printed by the Employee Consumer Cooperative of the Intellectual Property Office of the Ministry of Economic Affairs. Figure 9 is an enlarged cross-sectional view showing various parts of the line I X-IX in Figure 5. Fig. 10 is an enlarged cross-sectional view taken along the line X-X in Fig. 2. Fig. 11 is an enlarged cross-sectional view taken along the line XI-XI in Fig. 2. Fig. 12 is an enlarged view of a reference hole in the same disc magazine. Sectional drawing of other patterns. [Illustration of drawing number] This paper size is applicable to Chinese National Standard (CNS) A4 specification (210X297mm) -12- 588332 A7 __B7 V. Description of the invention (4 10 ... disc centimeters' 12 ... Shangcheng '13 A ~ 13 D ··· Ring Valley, 14 ... Central frame, 14A ... Rib, 15A ~ 15D ··· Plug in the hub, (Please read the precautions on the back before filling this page) 16 ... Lower case, 17A ~ 17D ... Hub, 18 ... Disc-shaped recording medium, 20 ... Center frame openings '20A, 22A ... Drive openings, 21, 23 ... Thick wall portion' 22 ... Lower case openings, 23 ... Long holes , 24 ... reinforcing members, 24A, 26A ... bottom surface, 26 ... lower shell reinforcing members, 28 ... peripheral walls, 28A ... disc storage space, 3〇 ... Guide groove '.31 ... Guide groove' 32 ... Baffle, 32A ... Sliding pin, 33A ... Slider '33B ... Hook, 34 ... First baffle member, 34A ... Baffle blade portion, 35A, 37A ... straight end, 36 ... second baffle member, 36A ... shaft shaft, 36B ... reinforcing sliding contact portion, 36E ... sliding contact portion, 37B receiving recess, 37C ... guide groove, 38 ... chute, 39 … Reference hole, 40… work screw, 42 ·· outer wall of the lower case, 4 4… outer wall of the upper case, 46 ... baffle lever, 46A ·· spring, 46B ... outer end, 48 ... disc brake mechanism, 50 … Spring hooks, 50A ·· recesses, 52… baffle spring locking holes, 52A… empty knife recesses, 53… pins, 54… guide projections, 56… impact prevention ribs, 60… torsion coil springs ( 1st baffle spring) 60A ... helical part, 60 B · · · — end, 60C ... the other end, 62 ... cylindrical rib, 64 ... torsion coil spring (second baffle spring). Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs [Best Embodiment of the Invention] The following describes the embodiment of the present invention in detail with reference to the drawings. The paper ^ degree applies to the Chinese National Standard (CNS) A4 specification (210X297 mm) ^ I · ---- 588332 A7 B7_____
五、發明説明（A (請先閱讀背面之注意事項再填寫本頁) 如第1圖所示，有關本實施形態例的碟片匣1 〇 ’是將 上殻12、中心框14、及下殼16重疊在厚度方向並進行連 結所構成，並在前述上殼1 2及中心框1 4之間將碟片狀記 錄媒體1 8收納成可旋轉所構成° 在前述中心框14及下殼1 6，是將前述收納後的碟片狀 記錄媒體1 8的信號記錄領域的一部分在碟片半徑方向跨越 內外周，且，在碟片厚度方向，使第1圖中露出下側面的 記錄及/或再生的中心框開口部20及下殻開口部22以略呈 同一形狀形成於疊合位置（參考第2圖）。在前述中心框 1 4，是設有補強構件24將前述中心框開口部20連結在其 外側端位置的兩側。 又，在下殻16，也設有下殼補強構件26在該前述下殼 開口部22的外周端位置用來連結兩側。 在前述中心框14，是具有圓弧形狀的周壁部28在第1 圖中的上面立起在厚度方向，並在其內側形成有碟片收納 空間28A用來收納前述碟片狀記錄媒體18。又，前述補強 構件24，是呈圓弧形狀與前述周壁部28進行連接。 經濟部智慧財產局員工消費合作社印製 前述圓弧形狀的周壁部28，是到前述中心框開口部20 的外周端位置爲止，但將其間使前述補強構件24 —體地連 接，而做爲全體呈圓環狀。 前述補強構件24，是如第3圖所示，具有底面24A該 底面是比收納後的碟片狀記錄媒體18的下側面分開於更上 方，將碟片匣10裝入到驅動器（省略圖示）時，驅動器側 的拾音部等形成不會干擾記錄再生機構（省略圖示）。 I紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐) ' "' -14 - 588332 A7 B7 五、發明説明（4 又’上面24B，是比第丨圖中前述周壁部28的上端形成稍 高。 (請先閱讀背面之注意事項存填寫本買〕 進而’前述補強構件24，是如第1、2圖所示，延長於 前述中心框開口部20的寬度方向兩側，而該延長部分，是 如第4圖放大所示，與前述周壁部28 —起，開口在下殼16 方向’並在內部構成具有導溝3 1的反U字形狀的導槽30。 補強構件24，是將反U字形狀的導槽30，在中心框開 口部20的範圍內將其下側呈切口的形狀，如第3圖放大所 示，比前述導槽30形成更低的反U字形狀剖面。 前述導槽30的導溝31，是如第4圖所示，其寬度，是 重疊前述下殼補強構件26及擋板32的立起滑動部33 ( — 起詳細後述）的狀態下形成可嵌合成可滑動的程度。 前述下殼1 6的下殼補強構件26，是在設置前述導槽 30的範圍內，呈圓弧形狀可嵌合於導溝31，並延長在下殼 開口部22的兩側所設置，在全體，用來構成圓弧形狀的下 殻導壁。 經濟部智慧財產局員工消費合作社印製 又，前述下殼補強構件26，是在前述下殻開口部22的 寬度方向範圍內，與補強構件24同樣在圖中使下側切口， 並與補強構件24的底面24A形成面一致的底面26A，在全 體，用來構成圓弧形狀的下殼導壁。 因此，當碟片匣10裝入在驅動器側時，補強構件24 及下殻補強構件26的底面24 A、26A是比前述記錄再生機 構，在第1圖中更上方，與此可避開干擾。 前述中心框開口部20及下殻開口部22的最深部是呈 本紙張尺度適用中國國家標準（CNS ) A4規格（210 X 297公釐） -15- 588332 A7 B7 五、發明説明（& 半圓弧形狀，.做爲驅動用開口部20A、22A，在此嵌裝於碟 片狀記錄媒體1 8的中心並爲了將此加以驅動使主軸（省略 圖示）可進入。 前述中心框開口部20及下殻開口部22，是相似形狀， 如第2圖所示，當疊合上殼12、中心框14、下殼16時， 使中心框開口部20的寬度僅比下殼開口部22的寬度稍 大。 前述擋板32，是如第1、2、5、6圖所示，由第1擋板 構件34及第2擋板構件36所構成。 前述第1擋板構件34，其構造具備有：略呈扇形的擋 板葉片部34A、及從其扇形的圓弧形狀的外周端立起呈垂直 的前述立起滑動部33。 前述立起滑動部33，是比前述導槽30稍長，沿著導槽 30及下殻補強構件26並與此延長成平行。又，該立起滑動 部33，在前述下殻開口部22的相反側的端部，是安裝有滑 塊33A。該滑塊33A，是如第2、7圖所示，使組合狀態的 碟片匣10的側面，突出於滑溝3 8內，並沿著該滑溝3 8支 承成可滑動。該滑溝3 8，是朝碟片匣10的驅動器形成於出 入方向。 進而，在前述立起滑動部33，是在其上端，形成複數 飽部3 3 B滑動自如地掛在則述下殼補強構件2 6的上端，藉 此，第1擋板構件34，是將前述導槽30的導溝31內，夾 持在補強構件2 4及下殼補強構件2 6的狀態下形成可滑動 呈圓弧狀。 本紙張尺度適用中國國家標準（CNS ) Α4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本I)V. Description of the invention (A (Please read the precautions on the back before filling in this page) As shown in Figure 1, the disc cartridge 1 0 ′ of this embodiment is the upper case 12, the center frame 14, and the lower The case 16 is formed by overlapping and connecting in the thickness direction, and the disc-shaped recording medium 18 is housed so as to be rotatable between the upper case 12 and the central frame 14. The central frame 14 and the lower case 1 6 is a recording of a part of the signal recording area of the disc-shaped recording medium 18 that has been housed in the above, which spans the inner and outer peripheries in the radius direction of the disc, and in the thickness direction of the disc, the bottom side of the first figure is exposed and / The regenerated center frame opening 20 and the lower case opening 22 are formed at the overlapping position in a substantially same shape (refer to FIG. 2). The center frame 14 is provided with a reinforcing member 24 to open the center frame. 20 is connected to both sides of its outer end position. The lower case 16 is also provided with a lower case reinforcing member 26 at the outer peripheral end position of the lower case opening 22 for connecting the two sides. The central frame 14 is The peripheral wall portion 28 having a circular arc shape stands on the upper surface in FIG. 1. In the thickness direction, a disc storage space 28A is formed on the inner side of the disc-shaped recording medium 18. The reinforcing member 24 is connected in an arc shape to the peripheral wall portion 28. Ministry of Economic Affairs Intellectual Property The bureau employee consumer cooperative printed the arc-shaped peripheral wall portion 28 to the position of the outer peripheral end of the center frame opening portion 20, but connected the reinforcing member 24 in a body in the meantime, and the whole was formed into a ring shape. The reinforcing member 24 has a bottom surface 24A, as shown in FIG. 3, which is separated from the lower side of the disc-shaped recording medium 18 after being stored, and the disc cartridge 10 is inserted into the drive (omitted) (Shown), the pickup section on the drive side will not interfere with the recording and reproduction mechanism (not shown). I Paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) '"' -14-588332 A7 B7 V. Description of the invention (4 and 'the upper 24B is slightly higher than the upper end of the aforementioned peripheral wall portion 28 in the figure 丨 (please read the precautions on the back and fill in this purchase first) and then' the aforementioned reinforcing member 24, As shown in FIGS. 1 and 2, it is extended on both sides in the width direction of the center frame opening portion 20, and the extension portion is enlarged as shown in FIG. 4 and opens with the peripheral wall portion 28 and is opened in the lower case 16. Direction 'and an inward U-shaped guide groove 30 having a guide groove 31 is formed inside. The reinforcing member 24 is an inverse U-shaped guide groove 30, and the lower side of the inverse U-shaped guide groove 30 is formed within the range of the center frame opening portion 20. The shape of the cutout, as shown in the enlarged view in FIG. 3, forms a lower inverted U-shaped cross section than the guide groove 30. The guide groove 31 of the guide groove 30 is shown in FIG. 4, and its width overlaps the foregoing. The lower case reinforcing member 26 and the upright sliding portion 33 (to be described in detail later) of the baffle 32 are formed to be capable of being fitted so as to be slidable. The lower case reinforcing member 26 of the lower case 16 is provided in a circular arc shape within the range where the guide groove 30 is provided, and can be fitted into the guide groove 31, and is extended on both sides of the lower case opening 22, and is provided in the entirety. , Used to form the arc-shaped lower shell guide wall. Printed by the Employees ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The lower shell reinforcing member 26 is cut in the lower side of the lower shell opening 22 in the width direction of the lower shell opening 22 as shown in the figure. The bottom surface 24A of 24 forms a bottom surface 26A with a uniform surface, and is used to form an arc-shaped lower case guide wall as a whole. Therefore, when the disc cartridge 10 is installed on the drive side, the bottom surfaces 24 A and 26A of the reinforcing member 24 and the lower case reinforcing member 26 are higher than the aforementioned recording and reproducing mechanism in FIG. 1, which can avoid interference. . The deepest part of the central frame opening part 20 and the lower case opening part 22 is the paper size applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -15- 588332 A7 B7 5. & Description of the invention The arcuate shape is used as the drive openings 20A and 22A, and is inserted into the center of the disc-shaped recording medium 18 so as to drive the spindle (not shown) into the center. 20 and the lower case opening portion 22 are similar in shape. As shown in FIG. 2, when the upper case 12, the center frame 14, and the lower case 16 are stacked, the width of the center frame opening portion 20 is only larger than that of the lower case opening portion 22. The width of the baffle 32 is slightly larger. As shown in Figs. 1, 2, 5, and 6, the baffle 32 is composed of a first baffle member 34 and a second baffle member 36. The first baffle member 34 is The structure is provided with a slightly fan-shaped baffle blade portion 34A, and the upright sliding portion 33 standing upright from an outer peripheral end of the fan-shaped arc shape. The upright sliding portion 33 is larger than the guide groove 30. It is slightly longer and extends parallel to this along the guide groove 30 and the lower shell reinforcing member 26. The rising sliding portion 33 A slider 33A is attached to the end of the lower case opening 22 on the opposite side. This slider 33A is shown in Figs. The groove 38 is slidably supported in the groove 38 along the groove 38. The groove 38 is formed in the direction of the drive of the disc cartridge 10. In addition, the upright sliding portion 33 is formed thereon. At the upper end, a plurality of saturated portions 3 3 B are formed to be slidably hung on the upper end of the lower shell reinforcing member 26, whereby the first baffle member 34 is held in the guide groove 31 of the guide groove 30, The reinforcing member 2 4 and the lower shell reinforcing member 2 6 form a slidable arc shape in the state. This paper size applies the Chinese National Standard (CNS) Α4 specification (210 X 297 mm) (Please read the precautions on the back first Fill out this I)
、1T 經濟部智慧財產局工消費合作社印製 -16 - 588332 A7 __ B7____ 五、發明説明（彳)4 (請先閱讀背面之注意事項再填寫本頁} 前述第1擋板構件34中的扇形狀的擋板葉片部34A， 是在前端（扇的要部）位置，安裝有突起形狀的滑動銷 (滑動接觸突起部）32A突出於該擋板葉片部34A的厚度 方向兩側，該滑動銷32A，是對於前述驅動用開口部22A 呈同心圓弧形狀進入到形成於下殼的長孔23內與下殼16 不會干擾形成可移動，而前述第1擋板構件34是當引導導 溝31內呈圓弧狀時，如第5圖〜第6圖所示，從該長孔23 的一端到他端爲止可進行移動。 前述第1擋板構件34，是當立起滑動部33在第2圖中 的反時鐘方向形成衝程終端時，關閉前述中心框開口部20 及下殼開口部22約一半並且使立起滑動部33關閉補強構 件24的下側的切口部，又，在順時鐘方向形成衝程終端 時，如第2圖中二點鎖線所示，前述擋板葉片部34A，是與 中心框開口部20及下殼開口部22退避於不重疊的位置， 而立起滑動部33是形成能打開補強構件24的下側（參考 第6圖）。 經濟部智慧財產局a(工消費合作社印製 其中一方，前述第2擋板構件36，是在前述滑溝38近 傍，將比前述周壁部28在更外側位置的搖動軸36A做爲中 心支承呈搖動自如，並在圖中順時鐘方向進行搖動時，如 第5圖所示，在直線狀端緣37，關閉前述中心框開口部20 及下殼開口部22約一半並在前述擋板葉片部34A的直線狀 端緣35擋接成平行，且，在該狀態下，形成能關閉前述中 心框開口部20及下殼開口部22約剩餘的一半。Printed by 1T Industrial and Consumer Cooperatives, Bureau of Intellectual Property, Ministry of Economic Affairs-16-588332 A7 __ B7____ V. Invention Description (发明) 4 (Please read the precautions on the back before filling this page} The fan in the first baffle member 34 above The shape of the baffle blade portion 34A is at the front end (the main part of the fan), and a protruding pin (sliding contact projection) 32A is attached to the baffle blade portion 34A at both sides in the thickness direction. 32A is a concentric arc shape for the driving opening 22A to enter the long hole 23 formed in the lower case and the lower case 16 does not interfere with the formation of the movable portion. The first baffle member 34 is used as a guide groove. When the inside of 31 is arc-shaped, as shown in Figs. 5 to 6, it is possible to move from one end of the long hole 23 to the other end. The first baffle member 34 is formed when the standing sliding portion 33 When the stroke end is formed in the counterclockwise direction in FIG. 2, the central frame opening portion 20 and the lower case opening portion 22 are closed by about half, and the standing slide portion 33 is closed to the undercut portion of the reinforcing member 24. When the stroke direction forms the stroke end, as shown at two points in Figure 2 As shown by the line, the baffle blade portion 34A is retracted from the center frame opening portion 20 and the lower case opening portion 22 at positions that do not overlap with each other, and the standing slide portion 33 is formed to open the lower side of the reinforcing member 24 (refer to No. 6). Figure): Intellectual Property Bureau a, Ministry of Economic Affairs (one of which is printed by the Industrial and Consumer Cooperatives, the second baffle member 36 is located near the chute 38, and the swing shaft 36A is positioned outside the peripheral wall portion 28 as the swing shaft 36A. When the center support is free to swing and shakes clockwise in the figure, as shown in Fig. 5, at the linear end edge 37, close the half of the center frame opening portion 20 and the lower case opening portion 22 and close the half of the stopper. The linear end edge 35 of the plate blade portion 34A is blocked in parallel, and in this state, the remaining half of the center frame opening portion 20 and the lower case opening portion 22 can be closed.
又，如第6圖所示，第2擋板構件36是將搖動軸36A 本紙^^^適用中國國家標準了⑶“从規格“⑴以”公釐） ' -17- 588332 A7 _ B7 _ 五、發明説明（彳)5 做爲中心在反時鐘方向進行搖動時，形成可退避於前述中 心框開口部20、下殼開口部22不重疊的位置。 (請先閱讀背面之注意事項再填寫本頁) 於此，前述第1擋板構件34的前述滑動銷32A，是前 述第2擋板構件36，擋接在與第1擋板構件34擋接側的前 述直線狀端緣37，且，與此形成可滑動。 前述第2擋板構件36中的直線狀端緣37，是與前述滑 動銷32A在接觸部，一體地安裝有補強滑動接觸部（滑動 接觸緣部）36B爲了滑動圓滑進行。該補強滑動接觸部 36B，是使滑動銷32A滑動自如地進入並具備有滑動接觸溝 36E卡合於厚度方向。 如上述，前述擋板葉片部34A及第2擋板構件36，至 少在前述中心框開口部20及下殼開口部22的領域內使各 自對置的前述直線狀端緣3 5、3 7，擋接呈密著狀態下，而 前述第2擋板構件36中的直線狀端緣37，是通過該第2擋 板構件36的搖動中心軸也就是搖動軸36A及前述直線狀端 緣37的外端比假想線37A形成在前述擋板葉片部34A更外 經濟部智慧財產局員工消費合作社印製 前述第2擋板構件36，也如第7圖所示在前述搖動軸 36A，利用其螺旋部60A中被嵌裝的扭轉螺旋彈簧（第1擋 板彈簧）60，彈推於擋接在前述第1擋板構件34的方向。 於此，前述搖動軸36A，是立設在下殻16，但如第7 圖所示形成周壁構造，在其內側，從下殼16的下側（外 側）起在同軸，被穿設基準孔39，並當該碟片匣10載裝在 驅動器時，從該驅動器側使基準銷（圖示省略）進入到前 本&張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） -18- 588332 A7 B7 五、發明説明（4 (請先閱讀背面之注意事項再填寫本頁) 述基準孔3 9，形成可定位於碟片匣1 〇的各部及驅動器側。 前述搖動軸36A，是使其前端，嵌合在形成於上殼12的內 側面的圓筒狀肋62。 又，前述中心框14，如第1圖所示，從前述周壁部28 及導槽3 0連續地一體在外側形成有平板狀的肋14 A，並在 前述搖動軸36A近傍的肋14A，是如第8圖所示當組合 時，爲了不干擾設於前述下殼16的內側面的搖動軸36 A及 銷53形成孔兼用彈簧卡止用孔52。 經濟部智慧財產局員工消費合作社印製 該擋板彈簧卡止用孔52,是形成有使前述第2擋板構 件36的彈簧掛鉤部50露出。在前述彈簧掛鉤部50的根部 是形成凹部50A，在彈簧掛鉤部50的背側，形成有間隙使 扭轉螺旋彈簧60的一端60B進入，而前述扭轉螺旋彈簧60 的一端60B，是在組合前述中心框14後，通過前述擋板彈 簧卡止用孔52從露出的前述凹部50A進入到前述彈簧掛鉤 部50的下側並卡止於此，扭轉螺旋彈簧60的另一端60C 是卡止在下殻1 6側的銷53。尙有，擋板彈簧卡止用孔是使 用切口也可。第2、5、6圖的編號52 A是顯示與前述凹部 50A的底面爲了回避干擾形成於下殼16的內側面的空刀凹 部。 進而，前述第2擋板構件36的搖動範圍內，在前述搖 動軸36A的近傍中的下殼16內側面，是如第1、2、5、6 圖、第9圖（A )所示，沿著前述搖動軸36A爲中心的圓弧 形成有帶狀的引導凸部54。該引導凸部54是利用第2擋板 構件36及下殼16之間的狹窄排屑孔，可抑制該第2擋板 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -19- 588332 A7 _ B7 _______In addition, as shown in FIG. 6, the second baffle member 36 is a paper with a swing shaft 36A ^^^ Applicable to the Chinese national standard ("From the specification" ⑴ to mm ") '-17- 588332 A7 _ B7 _ 5 2. Description of the invention (彳) 5 When the center is shaken in the counterclockwise direction, it is formed in a position that can be avoided from overlapping the center frame opening 20 and the lower case opening 22. (Please read the precautions on the back before filling in this (Page) Here, the sliding pin 32A of the first baffle member 34 is the second baffle member 36 and is blocked by the linear end edge 37 on the side that is in contact with the first baffle member 34. The linear end edge 37 of the second baffle member 36 is integrally provided with a reinforcing sliding contact portion (sliding contact edge portion) 36B in a contact portion with the sliding pin 32A in order to slide smoothly. The reinforcing sliding contact portion 36B is configured to allow the sliding pin 32A to slide in and is provided with a sliding contact groove 36E to engage in the thickness direction. As described above, the baffle blade portion 34A and the second baffle member 36 are at least as described above. In the area of the center frame opening 20 and the lower case opening 22 The linear end edges 3 5 and 37 facing each other are in a tight contact state, and the linear end edge 37 of the second baffle member 36 is moved by the second baffle member 36. The central axis, that is, the swing axis 36A and the outer end of the linear end edge 37 are formed on the baffle blade portion 34A more than the imaginary line 37A. As shown in FIG. 7, the torsion shaft 36A is urged in a direction to be blocked by the first baffle member 34 by a torsion coil spring (first baffle spring) 60 fitted in the coil portion 60A. Here, the rocking shaft 36A is erected on the lower case 16, but a peripheral wall structure is formed as shown in FIG. 7. On the inner side thereof, it is coaxial from the lower side (outer side) of the lower case 16 and is provided with a reference hole 39. And when the disc cartridge 10 is mounted on the drive, the reference pin (not shown) from the side of the drive is entered into the previous & Zhang dimensions to the Chinese National Standard (CNS) A4 specification (210X 297 mm)- 18- 588332 A7 B7 V. Description of the invention (4 (Please read the notes on the back before filling (This page) The reference holes 39 are formed to form the parts that can be positioned on the disc cartridge 10 and the driver side. The rocking shaft 36A is a front end that fits into a cylindrical rib formed on the inner side of the upper case 12. 62. In the center frame 14, as shown in FIG. 1, a flat rib 14A is continuously formed on the outside from the peripheral wall portion 28 and the guide groove 30, and a rib 14A near the rocking shaft 36A is formed. When combined, as shown in FIG. 8, the hole 52 and the spring locking hole 52 are formed so as not to interfere with the swing shaft 36 A and the pin 53 provided on the inner side surface of the lower case 16. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The baffle spring locking hole 52 is formed so that the spring hook portion 50 of the second baffle member 36 is exposed. A recessed portion 50A is formed at the root of the spring hook portion 50. A gap is formed on the back side of the spring hook portion 50 to allow one end 60B of the torsion coil spring 60 to enter, and one end 60B of the torsion coil spring 60 is combined at the center. After the frame 14, it enters from the exposed recessed portion 50A to the lower side of the spring hook portion 50 through the shutter spring locking hole 52 and locks there. The other end 60C of the torsion coil spring 60 is locked in the lower case 1. 6 lateral pins 53. If yes, a cutout can be used for the hole for locking the spring of the bezel. Reference numeral 52A in Figs. 2, 5, and 6 shows a hollow recess formed on the inner side surface of the lower case 16 to avoid interference with the bottom surface of the recess 50A. Furthermore, in the swing range of the second baffle member 36, the inner surface of the lower case 16 in the vicinity of the swing shaft 36A is as shown in Figs. 1, 2, 5, 6 and 9 (A), A band-shaped guide protrusion 54 is formed along an arc with the swing axis 36A as a center. The guide protrusion 54 is a narrow chip discharge hole between the second baffle member 36 and the lower case 16, which can restrain the second baffle from being applied to the Chinese National Standard (CNS) A4 specification (210X297 mm). 19- 588332 A7 _ B7 _______
五、發明説明（A 構件36的變形。 (請先閲讀背面之注意事項再填寫本頁) 又，前述第1及第2擋板構件34、36，中心框14，下 殼1 6的相互之間的滑動接觸面，是形成所謂縐紋加工面， 形成微小突起，相互形成點接觸，藉由接觸抵抗的降低形 成可圓滑的滑動。 進而，中心框14及下殻16的對置面中，前述中心框 開口部20及下殼開口部22的緣部，是如第10圖放大所 示，比對置面的其他部分在相互的接近方向形成更壁厚的 厚壁部21、23。因此，爲了前述第1及第2擋板構件34、 36滑動的排屑孔，是在前述厚壁部21、23變窄，使灰塵等 難以侵入到第1及第2擋板構件34、36的滑動空間，又， 在前述其他部分具有充分的排屑孔，可確保第1及第2擋 板構件34、36的圓滑滑動。前述厚壁部21、23，是僅設於 中心框14、下殻16的其中一方也可。 經濟部智慧財產局B工消費合作社印製 又，前述第1擋板構件34中的擋板葉片部34A，當開 口部閉塞時在擋接閉塞側端部的位置，是設有衝擊防止用 肋56在下殼16(或中心框14).由橡膠等的衝擊吸收材料 所構成。 在前述第2擋板構件36的直線狀端緣37的外端（自 由端），S受有擋接凸部37B在厚度方向形成折曲，並當擋 板閉塞時與擋板葉片部34A的直線狀端緣35形成擋接。 進而，如圖示，在下殼16的內側面，是滑動嵌合著前 述擋接凸部37B，並被引導，在該擋接凸部37B的搖動範 圍內設有圓弧形狀的引導凹部37C。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） •20- 588332 A7 _ B7_ 五、發明説明（士 (請先閲讀背面之注意事項再填寫本頁) 又，在前述第1擋板構件34及第2擋板構件36之 間，是安裝有扭轉螺旋彈簧（第2擋板彈簧）64，並一直 彈推於分開兩者間的方向。 從以上的結構，當碟片匣10裝入在驅動器使滑塊33A 拉到第2圖中的左方時，並沿著滑溝38進行固定量移動 時，第1擋板構件34是沿著導溝31呈圓弧狀，並搖動於 圖中的順時鐘方向，此時，滑動銷32A是在長孔23內，同 樣移動於順時鐘方向。此外，藉由裝置，當滑塊33A拉到 如上述狀態時，能關閉擋板也可。 利用該滑動銷32A的順時鐘方向的滑動，前述第2擋 板構件36，是反抗於扭轉螺旋彈簧60的彈力，在搖動軸 36A周圍搖動成反時鐘方向，藉此，使前述中心框開口部 20及下殼開口部22形成打開。 又，將碟片匣10從驅動器取出的狀態下，是利用前述 扭轉螺旋彈簧60，使第1擋板構件34、及第2擋板構件 36，返回到圖中的實線位置，形成關閉中心框開口部20、 下殼開口部22。 經濟部智恶財產局員工消費合作社印製 第1、2、5、6圖的編號46是顯示前述第2擋板構件 36及通過第2擋板構件爲了將第1擋板構件34維持呈閉狀 態的擋板鎖定桿。該擋板桿46，是當碟片匣10未裝入在驅 動器時，利用彈簧46A，將呈閉狀態的前述第2擋板構件 36的端面壓在其前端，使第1及第2擋板構件34、36不能 打開，又，當碟片匣10裝入在驅動器時，從碟片匣10的 側面當突出的擋板桿46的外端46B裝入時利用驅動器側構 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） -21 - 588332 A7 B7 五、發明説明（4 件（圖不省略）被推壓，搖動於圖中的反時鐘方向，並朝 第2擋板構件36的呈開方向形成可搖動。 (請先閲讀背面之注意事項再填寫本頁) 此外，擋板桿46，若具有如上述功能的鎖定構件即 可，桿形狀並不限定。 其次，對於前述上殼12、中心框14、及下殼16的夾 緊固定構造加以說明。 如第1圖所示，在前述下殼16的內側面（第1圖中上 面），在4角立設有輪轂17人、173、17(：、及170，並在前 述中心框1 4中的前述肋1 4 A，分別設有嵌合插通前述輪殼 17A〜17D的插通輪轂15A、15B、15C、15D，如第6圖所 示，將中心框1 4由下殻1 6的上方，將插通輪殼1 5 A〜1 5 D， 嵌入到對應的輪殻17A〜17D藉由插通對於下殼16形成可定 位。 經濟部智慧財產局員工消費合作社印製 其中一方，在前述上殻12側，是將中心框14加以插 通，使突出於第1圖中上方的前述輪殻17A〜17D嵌合於內 側並使承受輪殼13A、13B、13C、13D形成突出於第1圖中 的朝下。此時，前述插通輪殼15 A〜15D在第11圖中的上端 形成擋接在上轂12的內側面。 則述輪穀17A〜17D是將插通輪殼15A〜15D加以插通’ 並嵌合於承受輪轂13A〜13D的狀態下，前述輪轂17A〜17D 的下側，即從下殼1 6的外側利用功絲螺釘40將此等輪轂 17A〜17D鎖緊在承受輪轂13A〜13D，則在兩者間使插通輪 殼15A〜15D被鎖緊固定，藉此使下殻16、中心框14及上轂 12形成一體地被鎖緊固定（參考第4圖）° 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -22- 588332 A7 ____ _ B7______ 五、發明説明（土 (請先閱讀背面之注意事項再填寫本頁) 該鎖緊狀態下，如前述，下殼補強構件26是裝入在中 心框14的圖中朝下的導槽30內，並在其內側面及導槽30 的導溝3 1中的朝外面之間將前述第1擋板構件的立起滑動 @ 33形成保持呈滑動自如。 又，如上述的上轂12、中心框14、下殼16的鎖緊構 造中，中心框14的外周端，是形成嵌合於前述下殻16的 下殻外壁42的內側的大小及形狀，其中一方，在上轂12 側，是具備上轂外壁44與前述下殻16的下殻外壁42的圖 中上端對接，如第11圖所示，當利用功絲螺釘40 —體地 鎖緊固定時，此等下殼外壁42及上轂外壁44是進行壓接 所構成。 又，如前述，中心框14中的周壁部28及補強構件24 的上端面，是當上轂12及下殻16被鎖緊固定時，形成壓 接在上轂12的背側面（內側面）。 經濟部智慧財產局員工消費合作社印製 前述各部的尺寸，是利用功絲螺釘40，將上轂1 2及下 殻16鎖緊下去，則首先使中心框14的周壁部28及上轂12 的內側面，其次，使上轂外壁44及下殼外壁42，最後使插 通輪殻15A〜15D及上轂12的內側面，依順序分別進行擋接 所設定。 因此，利用功絲螺釘40，將上轂12及下殼16緊緊地 鎖緊，但其鎖緊力是分散於前述下殻外壁42及上轂外壁44 的擋接部及中心框14的周壁部28、補強構件24及上轂12 的背面，所以在功絲螺釘40的位置不會產生集中負荷，因 此可防止上轂1 2、下殻1 6的變形。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐) ~ -23- 588332 A7 _______B7_ 五、發明説明（4 (請先閲讀背面之注意事項再填寫本頁) 構成前述碟片匣10的上轂12，是例如添加玻璃纖維等 的補強材料的PC (聚碳酸酯）或ABS等的樹脂或鎂合金 等，由高耐熱性及剛性的材料所構成，相對地，下殼1 6， 是由樹脂等，耐熱性及剛性是不及上轂1 2，由低滑動摩擦 抵抗的材料所構成。 這是’根據如下的理由。首先，將碟片匣10全體保持 薄化’且爲了用來內裝擋板等構件，配合於內裝構件的載 置部分和滑動範圍使下殻1 6和中心框14的厚度部分性地 變化且將碟片匣1 0的外表面必須形成大致平坦。 結果必須用來形成極端地薄壁厚部分，所以下殻1 6.和 中心框14是不管材料如何會使剛性下降。 又’添加玻璃纖維等的補強材料的樹脂材料是使薄壁 部的成形性惡化，並使成形品的表面性惡化，會加強增大 摩擦抵抗的傾向，所以使用於下殼1 6和中心框14有所困 難。 經濟部智慧財產局員工消費合作社印製 進而，比起樹脂材料也可使用高剛性和耐熱性的鎂合 金和鋁等材料，但此等材料在如上述的形狀點當使用於受 限制的碟片匣的下殼和中心框時，則一般而言在成形性和 費用的觀點劣於樹脂材料，並且高的摩擦係數和表面硬度 所以與內裝零件的滑動是不適合。 特別，對於中心框是直接接觸在碟片狀記錄媒體，所 以在中心框使用金屬材料，且，在碟片狀記錄媒體使用樹 脂材料，則在碟片狀記錄媒體會有擦傷之虞所以非較佳。 另一方，上殻是從碟片匣10全體來看至少在該部分不 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） -24- 588332 A7 B7 五、發明説明（么 使用具有高剛性且耐熱性的材料，則不能維持全體的剛 (請先閱讀背面之注意事項再填寫本頁) 又，上殼12，是無擋板機構以單純的構造，且，在碟 片制動機構48 (後述）的外側因爲具有空間等，所以比較 於中心框14和下殼1 6形狀自由性較高，可加厚其主面的 厚度，或在內側設有補強肋可提高剛性。 第1圖的編號48是顯示將碟片上的記錄媒體1 8，從驅 動器卸下碟片匣10時，爲了用以防止旋轉的碟片制動機 構。 有關本實施形態例的碟片匣1 0，是當第1及第2擋板 構件3 4、3 6組裝在下殻1 6時，將此等藉由將中心框14組 合在下殻壓入放著。 經濟部智慧財產局員工消費合作社印製 其次，將第1擋板彈簧（扭轉螺旋彈簧）60的螺旋部 3 6E從中心框14的上側嵌裝在前述搖動軸36A，並將該第1 擋板彈簧60的一端60B從形成於前述中心框14的擋板彈 簧卡止用孔52，經由形成在第2擋板構件36的凹部50A壓 入到彈簧掛鉤部50的根部，可卡止在彈簧掛鉤部50。因 此’在第1擋板彈簧（扭轉螺旋彈簧）60的組裝中不會使 第1擋板彈簧脫落。 又’將一端60B卡止在彈簧掛鉤部50的作業時，該一 端60B ’是除了扭轉螺旋彈簧60的其他部分之外，與其他 部分是不接觸，所以形成作業圓滑，又容易。 此外’第1擋板彈簧是不限定於扭轉螺旋彈簧60，其 他彈簧’例如波狀線彈簧，扁平拉伸螺旋彈簧等其他形狀 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐) -25- 588332 A7 B7 五、發明説明（4 (請先閱讀背面之注意事項再填寫本頁) 的彈簧也可。.又，第1擋板彈簧，並不限定於嵌裝在搖動 軸36A的情形，若有安裝在下殼16或中心框14的結構即 可〇 進而，嵌裝前述第1擋板彈簧60的螺旋部60A的搖動 軸36A，是在其中心進入驅動器側的基準銷（圖示省略）的 基準孔39形成在同軸，所以與基準孔39在不同的位置設 置搖動軸的情況下做比較使構造形成簡單，又搖動軸36A 是內包基準孔39所以軸徑粗，可用以穩定裝架第1擋板彈 簧60的螺旋部60A。 又’基準孔39，是使其前端嵌合在上殼1 2側的圓筒狀 肋62，所以呈密閉狀態下被閉塞，從外部可防止灰塵等侵 入，並且可使剛性增大。 此外，基準孔39是如第7圖所示，將上殼12的內側 做爲底面39A，藉此被閉塞，但本發明並不限定於此，例如 第12圖（A)所不，用以閉塞搖動軸36A的前端構成底面 39B，或如第12圖（B)所示，在基準孔39的途中構成底 面39C也可。 經濟部智慧財產局員工消費合作社印製 進而，在前述第2擋板構件36的搖動軸36A近傍，在 該第2擋板構件36的搖動範圍內形成有引導凸部54 ,所以 利用裝架在搖動軸36A的前述第1擋板彈簧60的彈力及由 第1擋板構件3 4的力量使第2擋板構件3 6即使承受浮 力，但也藉由引導凸部54被抑制，使該第2擋板構件36 的開閉動作不會形成困難。 此外，前述引導凸部54是形成在下殼1 6，但本發明並 本紙張尺度適用中.國國家標準（CNS ) A4規格（210X297公釐) 一 -26- 588332 A7 B7 五、發明説明（3)4 (請先閲讀背面之注意事項再填寫本頁) 不限定於此，如第9圖（B )所示，在中心框41側，設置 引導凸部54A，或如第9圖（C )所示，在第2擋板構件36 側設置引導凸部54B也可。又，設在第2擋板構件36的兩 面，第2擋板構件及下殻16或中心框14的兩方也可。 進而又，卡止前述第1擋板彈簧60的一端60B的前述 第2擋板構件36的作用點，是如前述，該第1擋板彈簧60 的一端是進入到下側做爲彈簧掛鉤部50，所以該第1擋板 彈簧60是從第2擋板構件36突出到上方，與中心框14進 行滑動接觸，而不會將此切削。 又，前述第1擋板構件34、第2擋板構件36、下殻 1 6、中心框14，是相互的滑動對置面做爲縐紋加工面，所 以使接觸狀態藉由微小突起狀的連接形成點接觸，與光澤 面彼此之間的面接觸做比較可大幅度減低接觸抵抗，可獲 得圓滑的擋板開閉動作。 經濟部智慈財產局員工消费合作社印製 又，前述第1擋板構件34中的擋板葉片部34A，是在 開口部閉塞時使閉塞側的端部擋接於設在下殼1 6或中心框 14的衝擊防止用肋56，所以不會產生集中負荷，可抑制由 於集中負荷使第1擋板構件34的破損。 進而又，前述中心框開口部20及下殼開口部22至少 其中一方中的緣部，是該中心框14及下殻16中，與第1 及第2擋板構件34、36的滑動面比其他部分做爲更厚的厚 壁部21、23，所以從中心框開口部20，下殼開口部22的端 部可抑制灰麈進入到擋板構件方向。此時，開口部近傍以 外是中心框14及/或下框16的壁厚變薄，所以第1擋板構 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -27- 588332 A 7 B7 五、發明説明（4 件34及第2.擋板構件36的滑動的排屑孔足夠被確保，並 使其開閉動作不被限制。 【產業上的利用可能性】 本發明是構成如上述，所以當第1擋板彈簧的組裝時 使該第1擋板彈簧不會脫落，進而，使驅動器側的基準銷 進入而來將基準孔設於第2擋板構件的搖動軸，所以將構 造單純化，且具有可確保空間的優異效果。 進而，第2擋板構件的搖動軸近傍中，用來抑制該第2 擋板構件的厚度方向的變形，所以可順暢確保擋板開閉動 作。 (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -28-V. Description of the invention (deformation of A member 36. (Please read the precautions on the back before filling out this page) Also, the first and second baffle members 34, 36, the center frame 14, and the lower case 16 are mutually related. The sliding contact surface between them forms a so-called crepe-finished surface, which forms micro-protrusions and forms point contact with each other, so that smooth sliding can be formed by reducing the contact resistance. Furthermore, among the opposing surfaces of the center frame 14 and the lower case 16, The edge portions of the center frame opening portion 20 and the lower case opening portion 22 are enlarged as shown in FIG. 10, and the thick portions 21 and 23 are formed with a greater thickness in the approaching direction than the other portions of the facing surface. The chip discharge holes for the first and second baffle members 34 and 36 to slide are narrowed in the thick-walled portions 21 and 23 to make it difficult for dust and the like to enter the first and second baffle members 34 and 36. The sliding space also has sufficient chip removal holes in the other parts to ensure smooth sliding of the first and second baffle members 34 and 36. The thick-walled portions 21 and 23 are provided only on the center frame 14 and below. One of the shells 16 is also possible. The baffle blade portion 34A of the first baffle member 34 is provided with an impact prevention rib 56 in the lower case 16 (or the center frame 14) at the position of the blocking and blocking side end portion when the opening portion is closed. The rubber It is composed of an impact absorbing material. At the outer end (free end) of the linear end edge 37 of the second baffle member 36, S is bent by the receiving convex portion 37B in the thickness direction, and is blocked when the baffle is closed. At this time, a blocking contact is formed with the linear end edge 35 of the baffle blade portion 34A. Further, as shown in the figure, the above-mentioned blocking projection 37B is slidably fitted on the inner side surface of the lower case 16 and is guided to the blocking. An arc-shaped guide recess 37C is provided within the swing range of the convex portion 37B. This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) • 20- 588332 A7 _ B7_ V. Description of the invention (Just (please first Read the cautions on the back and fill in this page again.) Also, a torsion coil spring (second baffle spring) 64 is installed between the first baffle member 34 and the second baffle member 36, and it is constantly pushed against Separate the direction between the two. From the above structure, when the disc cartridge 10 is loaded in the drive When the slider 33A is pulled to the left in FIG. 2 and moved a fixed amount along the chute 38, the first baffle member 34 is arc-shaped along the guide groove 31 and shakes in the figure At this time, the slide pin 32A is in the long hole 23 and moves in the clockwise direction. In addition, by the device, when the slider 33A is pulled to the above state, the shutter can be closed. When the sliding pin 32A slides in the clockwise direction, the second baffle member 36 is deflecting against the elastic force of the torsion coil spring 60 and swings around the swinging shaft 36A in the counterclockwise direction, thereby making the center frame opening 20 And the lower case opening 22 are opened. In the state where the disc cartridge 10 is taken out from the drive, the first and second shutter members 34 and 36 are returned to the solid line positions in the figure by using the torsion coil spring 60 to form a closed center. The frame opening portion 20 and the lower case opening portion 22. Number 46 of Figures 1, 2, 5, and 6 printed by the Employees ’Cooperatives of the Intellectual Property Office of the Ministry of Economic Affairs shows the second baffle member 36 and the second baffle member 34 to keep the first baffle member 34 closed. Status bezel lock lever. The shutter lever 46 presses the end face of the second shutter member 36 in a closed state against the front end of the disc shutter 10 with the spring 46A when the disc cartridge 10 is not installed in the drive, so that the first and second shutters The members 34 and 36 cannot be opened, and when the disc cartridge 10 is installed in the drive, the side of the disc cartridge 10 is used when the outer end 46B of the protruding baffle lever 46 is installed. National Standard (CNS) A4 specification (210X 297 mm) -21-588332 A7 B7 V. Description of the invention (4 pieces (not shown) are pushed, shaken in the direction of the counter clock in the figure, and toward the second baffle The opening direction of the member 36 can be shaken. (Please read the precautions on the back before filling in this page.) In addition, the baffle lever 46 is not limited to the shape of the lever if it has a locking member with the function described above. Second, for the The clamping and fixing structure of the upper case 12, the center frame 14, and the lower case 16 will be described. As shown in FIG. 1, the inner side of the lower case 16 (the upper side in FIG. 1) is provided at four corners. Wheels 17 persons, 173, 17 (:, and 170), and the aforementioned ribs 1 4 A in the aforementioned central frame 14, The plug-in hubs 15A, 15B, 15C, and 15D that fit through the aforementioned wheel housings 17A to 17D are provided separately. As shown in FIG. 6, the center frame 14 is inserted from the upper part of the lower housing 16 into the wheel housing. 1 5 A ~ 1 5 D, which are embedded in the corresponding wheel shells 17A ~ 17D and can be positioned for the lower shell 16 by plugging in. One of them is printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, on the 12 side of the upper shell. The center frame 14 is inserted, and the aforementioned wheel shells 17A to 17D protruding above the first figure are fitted to the inside, and the receiving wheel shells 13A, 13B, 13C, and 13D are formed downwardly protruding from the first figure. At this time, the upper ends of the inserting wheel shells 15 A to 15D are formed on the inner side of the upper hub 12 at the upper end of FIG. 11. Then the wheel valleys 17A to 17D are inserted through the inserting wheel shells 15A to 15D. And fitted to the receiving hubs 13A to 13D, the lower sides of the aforementioned hubs 17A to 17D, that is, from the outside of the lower case 16 are locked with the hubs 17A to 17D to the receiving hubs 13A to 13D , The plug-in wheel shells 15A to 15D are locked and fixed between the two, thereby the lower shell 16, the center frame 14 and the upper hub 12 are integrally locked and fastened. (Refer to Figure 4) ° This paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) -22- 588332 A7 ____ _ B7______ 5. Description of the invention (soil (please read the precautions on the back before filling this page) ) In this locked state, as described above, the lower shell reinforcing member 26 is installed in the guide groove 30 facing downward in the figure of the center frame 14, and faces the inner side surface and the guide groove 31 of the guide groove 30. The upright sliding @ 33 of the aforementioned first baffle member is formed to slide freely between the outer surfaces. In addition, as in the above-mentioned locking structure of the upper hub 12, the center frame 14, and the lower case 16, the outer peripheral end of the center frame 14 is formed in a size and shape that fits inside the lower case outer wall 42 of the lower case 16, One of them, on the upper hub 12 side, is provided with an upper hub outer wall 44 and an upper end of the lower shell outer wall 42 of the lower shell 16 as shown in FIG. 11. As shown in FIG. In this case, the lower case outer wall 42 and the upper hub outer wall 44 are formed by crimping. As described above, the peripheral wall portion 28 and the upper end face of the reinforcing member 24 in the center frame 14 are crimped to the back side (inner side) of the upper hub 12 when the upper hub 12 and the lower shell 16 are locked and tightened. . The dimensions of the aforementioned departments are printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, and the upper hub 12 and the lower shell 16 are locked by using the power screw 40. Then, the peripheral wall portion 28 and the upper hub 12 of the center frame 14 are first locked. The inner side is followed by the upper hub outer wall 44 and the lower shell outer wall 42, and finally, the wheel housings 15A to 15D and the inner side of the upper hub 12 are respectively inserted and set in order. Therefore, the upper hub 12 and the lower shell 16 are tightly locked by using the work wire screw 40, but the locking force is dispersed in the abutment portion of the lower shell outer wall 42 and the upper hub outer wall 44 and the peripheral wall of the center frame 14. Since the back of the portion 28, the reinforcing member 24, and the upper hub 12 does not generate a concentrated load at the position of the work wire screw 40, deformation of the upper hub 12 and the lower shell 16 can be prevented. This paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) ~ -23- 588332 A7 _______B7_ V. Description of the invention (4 (Please read the precautions on the back before filling this page) The upper hub 12 is made of a resin (such as PC (polycarbonate)) or ABS with a reinforcing material such as glass fiber or a magnesium alloy, and is made of a material having high heat resistance and rigidity. On the other hand, the lower case 16 is It is made of resin, etc., and has lower heat resistance and rigidity than the upper hub 12 and is made of a material with low sliding friction resistance. This is 'for the following reasons. First, keep the entire disc cartridge 10 thin' and use it internally. Components such as a baffle plate, the mounting portion and the sliding range that fit the internal components partially change the thickness of the lower case 16 and the center frame 14 and the outer surface of the disc cartridge 10 must be formed substantially flat. It is used to form extremely thin and thick parts, so the lower case 16 and the central frame 14 reduce rigidity regardless of the material. The resin material added with a reinforcing material such as glass fiber deteriorates the formability of the thin portion, and Make Deterioration of the shape of the product will increase the tendency to increase friction resistance, so it is difficult to use it for the lower case 16 and the center frame 14. It is printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs and can also be used than resin materials. Materials such as magnesium alloy and aluminum with high rigidity and heat resistance, but when these materials are used at the shape points as described above for the lower case and center frame of a limited disc cartridge, they are generally in terms of formability and cost. The viewpoint is inferior to the resin material, and the high friction coefficient and surface hardness are not suitable for sliding with the built-in parts. In particular, the center frame is in direct contact with the disc-shaped recording medium, so a metal material is used in the center frame. The disc-shaped recording medium uses a resin material, so it is not preferable because the disc-shaped recording medium may be scratched. On the other hand, the upper case is viewed from the entire disc cartridge 10 at least in this part. This paper is not suitable for China. National Standard (CNS) A4 specification (210X 297 mm) -24- 588332 A7 B7 V. Description of the invention (If you use materials with high rigidity and heat resistance, you cannot maintain the overall (Please read the precautions on the back before filling in this page.) The upper case 12 has a simple structure without a baffle mechanism, and it has a space on the outside of the disc brake mechanism 48 (to be described later). The center frame 14 and the lower case 16 have a high degree of freedom in shape, and can be thickened on the main surface or provided with reinforcing ribs on the inner side to improve rigidity. Number 48 in FIG. 1 shows the recording medium 1 on the disc. 8. In order to prevent the disc brake mechanism from rotating when the disc cartridge 10 is removed from the drive, the disc cartridge 10 of this embodiment is the first and second shutter members 3 4, 3 6 When assembling to the lower case 16, these are pressed and placed by assembling the center frame 14 to the lower case. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. Next, the spiral portion 3 6E of the first baffle spring (torsion coil spring) 60 is fitted into the swing shaft 36A from the upper side of the center frame 14 and the first baffle is mounted. One end 60B of the spring 60 is press-fitted into the root of the spring hook portion 50 from the baffle spring locking hole 52 formed in the center frame 14 through the recessed portion 50A formed in the second baffle member 36 to lock the spring hook. Department 50. Therefore, the first baffle spring (torsion coil spring) 60 does not come off during assembly of the first baffle spring (torsion coil spring) 60. Also, when the one end 60B is locked to the spring hook portion 50, the one end 60B is not in contact with the other parts except the torsion coil spring 60, so the operation is smooth and easy. In addition, 'the first baffle spring is not limited to the torsion coil spring 60, other springs', such as corrugated wire springs, flat stretch coil springs and other shapes. This paper applies the Chinese National Standard (CNS) A4 specification (210X297 mm). -25- 588332 A7 B7 5. The spring of the invention (4 (please read the precautions on the back before filling this page) is also available. Also, the first baffle spring is not limited to the one that is embedded in the swing shaft 36A. In some cases, the structure can be installed in the lower case 16 or the center frame 14. Furthermore, the swing shaft 36A in which the coil portion 60A of the first baffle spring 60 is fitted is a reference pin (shown in the figure) that enters the driver side at the center. Omitted) The reference hole 39 is formed coaxially, so the structure is simple compared with the case where the reference hole 39 is provided with a swing shaft at a different position, and the structure is simple. The swing shaft 36A contains the reference hole 39, so the diameter of the shaft is thick, which can be used for stability. The helical portion 60A of the first baffle spring 60 is mounted. The reference hole 39 is a cylindrical rib 62 whose front end is fitted to the upper case 12 side, so it is closed in a closed state and can be prevented from the outside. Dust, etc. The rigidity is increased. In addition, as shown in FIG. 7, the reference hole 39 is closed by using the inside of the upper case 12 as the bottom surface 39A, but the present invention is not limited to this. For example, as shown in FIG. 12 (A) No, the bottom surface 39B may be used to close the front end of the rocking shaft 36A, or as shown in Figure 12 (B), the bottom surface 39C may be formed in the middle of the reference hole 39. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs In the vicinity of the swinging shaft 36A of the second baffle member 36, a guide protrusion 54 is formed in the swinging range of the second baffle member 36. Therefore, the elastic force of the first baffle spring 60 mounted on the swinging shaft 36A is utilized. Moreover, even if the second baffle member 36 is subjected to buoyancy by the force of the first baffle member 34, the guide convex portion 54 is suppressed, so that the opening and closing operation of the second baffle member 36 does not become difficult. In addition, the aforementioned guide convex portion 54 is formed in the lower case 16, but the present invention is applicable to the paper size. National Standard (CNS) A4 Specification (210X297 mm) One -26-588332 A7 B7 V. Description of the Invention (3 ) 4 (Please read the notes on the back before filling this page) Not limited to this, such as As shown in FIG. 9 (B), a guide protrusion 54A may be provided on the center frame 41 side, or as shown in FIG. 9 (C), a guide protrusion 54B may be provided on the second baffle member 36 side. The second baffle member 36 may be provided on both sides of the second baffle member 36, and the second baffle member and either the lower case 16 or the center frame 14. The second baffle that locks one end 60B of the first baffle spring 60 may be used. The action point of the plate member 36 is as described above. One end of the first baffle spring 60 enters the lower side as the spring hook portion 50. Therefore, the first baffle spring 60 protrudes from the second baffle member 36 to Above, sliding contact is made with the center frame 14 without cutting this. In addition, since the first baffle member 34, the second baffle member 36, the lower case 16, and the center frame 14 are mutually facing sliding surfaces as a crepe-finished surface, the contact state is formed by micro-protrusions. The connection forms a point contact. Compared with the surface contact between the glossy surfaces, the contact resistance can be greatly reduced, and a smooth shutter opening and closing action can be obtained. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The baffle blade portion 34A in the first baffle member 34 is used to block the end on the blocking side from the lower case 16 or the center when the opening is closed. Since the impact prevention rib 56 of the frame 14 does not generate a concentrated load, it is possible to suppress damage to the first baffle member 34 due to the concentrated load. Furthermore, an edge portion of at least one of the center frame opening portion 20 and the lower case opening portion 22 is a sliding surface ratio of the center frame 14 and the lower case 16 to the first and second shutter members 34 and 36. The other portions are thicker and thicker portions 21 and 23, so from the central frame opening portion 20 and the end of the lower case opening portion 22, it is possible to suppress the ash from entering the direction of the baffle member. At this time, the wall thickness of the center frame 14 and / or the lower frame 16 becomes thinner near the opening portion, so the paper size of the first baffle structure applies the Chinese National Standard (CNS) A4 specification (210X297 mm) -27- 588332 A 7 B7 V. Description of the invention (4 pieces 34 and 2) The chip removal hole of the sliding of the baffle member 36 is sufficiently ensured, and the opening and closing operations are not restricted. [Industrial Applicability] The present invention is constituted As described above, when the first baffle spring is assembled, the first baffle spring is prevented from falling off, and the reference pin on the driver side is inserted to set the reference hole to the swing shaft of the second baffle member. The structure is simplistic and has an excellent effect of ensuring space. Furthermore, in the vicinity of the swing axis of the second baffle member, it is used to suppress the deformation in the thickness direction of the second baffle member, so that the baffle opening and closing operation can be smoothly ensured. (Please read the notes on the back before filling this page) The paper size printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs applies to the Chinese National Standard (CNS) A4 (210X297 mm) -28-