JPS63209083A - Manufacturing of disk cartridge - Google Patents
Manufacturing of disk cartridgeInfo
- Publication number
- JPS63209083A JPS63209083A JP62043532A JP4353287A JPS63209083A JP S63209083 A JPS63209083 A JP S63209083A JP 62043532 A JP62043532 A JP 62043532A JP 4353287 A JP4353287 A JP 4353287A JP S63209083 A JPS63209083 A JP S63209083A
- Authority
- JP
- Japan
- Prior art keywords
- disk
- hub
- adhesive
- lower hub
- hardened
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 239000000853 adhesive Substances 0.000 claims abstract description 49
- 230000001070 adhesive effect Effects 0.000 claims abstract description 49
- 238000003466 welding Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 abstract description 8
- 238000010438 heat treatment Methods 0.000 abstract description 5
- -1 polyethylene terephthalate Polymers 0.000 abstract description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 abstract 1
- 239000005020 polyethylene terephthalate Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 5
- 239000012790 adhesive layer Substances 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 244000242323 Anchusa officinalis Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920005570 flexible polymer Polymers 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
- B29C66/474—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially non-flat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2017/00—Carriers for sound or information
- B29L2017/001—Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
- B29L2017/003—Records or discs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
この発明は、円盤磁気シート状の情報記録再生媒体（以
下ディスクと称する）をハブを介して回転自在に配設し
てなるディスクカートリッジの製造方法に関する。[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to the manufacture of a disk cartridge in which a disc magnetic sheet-shaped information recording/reproducing medium (hereinafter referred to as a disk) is rotatably disposed via a hub. Regarding the method.
［発明の概要］
この発明は、ディスクカートリッジの製造方法において
、
ディスクを保持する例えば一対のハブのうちの一方のハ
ブに接着剤を塗布して硬化させ、次に、前記一方のハブ
の硬化した接着剤の上に前記ディスクを載せて該接着剤
を加熱することにより該一方のハブとディスクとを溶着
すると共に、前記一方のハブに他方のハブを前記ディス
クを挾持するように嵌合させて溶着し、その後前記ディ
スクを前記一対のハブを介してケース本体内に回転自在
に収容せしめることことにより、
前記ハブとディスクとを溶着する工程における位置決め
作業を容易かつ確実にし、また、前記ハブの接着剤塗布
面よりディスクの記録エリアへの接着剤の飛散、流出等
のはみ出しを防止して接着剤の層のコントロールを容易
にし、記録、再生時にエラーが発生しないようにしたも
のである。[Summary of the Invention] The present invention provides a method for manufacturing a disk cartridge, including applying an adhesive to one hub of a pair of hubs holding a disk and curing the adhesive, and then applying an adhesive to the hardened one hub. The one hub and the disk are welded by placing the disk on an adhesive and heating the adhesive, and the other hub is fitted to the one hub so as to sandwich the disk. By welding and then rotatably housing the disc within the case body via the pair of hubs, positioning work in the process of welding the hub and the disc is facilitated and reliable, and the hub is This prevents the adhesive from scattering or leaking from the adhesive-applied surface to the recording area of the disc, making it easier to control the adhesive layer and preventing errors from occurring during recording and playback.
［従来の技術］
従来、ディスクとハブを接着剤で固着したり、ディスク
を一対のハブの嵌合により挟持することにより、ディス
クカートリッジを製造していた。[Prior Art] Conventionally, disk cartridges have been manufactured by fixing a disk and a hub with adhesive or by sandwiching the disk by fitting a pair of hubs together.
一対のハブの嵌合により製造されんディスクカートリッ
ジとしては、特開昭５７−２１２６２５号公報記載のも
のが有る。これを、第７．８図に示すと、符号■は°デ
ィスクカートリッジの円盤磁気シート状のディスクであ
り、このディスクｌの中央に形成されたセンタ一孔１ａ
には、該センタ一孔１ａと嵌り合う円筒部２ａを有する
下ハブ２と、該円筒部２ａと嵌り合う孔３ａを有する上
ハブ３を取り付けである。即ち、前記下ハブ２と上ハブ
３でディスク１のセンタ一孔１ａの周辺部分を挾むよう
に上下両ハブ２．３を嵌合し、これら下ハブ２と上ハブ
３の相対向する面の少なくとも一方に一体的に設けたビ
ン状の凸部４を、ディスク１のセンタ一孔１ａの近傍に
設けられた係合孔１ｂに挿入することにより、ディスク
ｌが一対の下ハブ２と上ハブ３間で挾持されるようにな
っている。As a disk cartridge manufactured by fitting a pair of hubs, there is one described in Japanese Patent Application Laid-Open No. 57-212625. This is shown in Fig. 7.8. The symbol ■ is a disk in the form of a disk magnetic sheet of the disk cartridge, and the center hole 1a formed in the center of this disk L is
A lower hub 2 having a cylindrical portion 2a that fits into the center hole 1a and an upper hub 3 having a hole 3a that fits into the cylindrical portion 2a are attached to the hub. That is, the upper and lower hubs 2.3 are fitted so that the lower hub 2 and the upper hub 3 sandwich the peripheral portion of the center hole 1a of the disk 1, and at least the opposing surfaces of the lower hub 2 and the upper hub 3 are fitted. By inserting the bottle-shaped convex portion 4 integrally provided on one side into the engagement hole 1b provided near the center hole 1a of the disk 1, the disk 1 is connected to the pair of lower hub 2 and upper hub 3. It is now being held in between.
しかし、前述のディスクｉとハブの取り付は製造方法で
は、下ハブ２に上ハブ３を嵌合させて、両ハブ２．３間
にディスクｌを挾持することにより、該ディスクｌを下
ハブ２と上ハブ３間の摩擦力のみでこれら下ハブ３とデ
ィスクｌとの回転（周）方向、径方向等の位置ずれを防
止しているため、ハブの凸部４の外径及びディスク１の
係合孔ｌｂの相互の寸法バラツキにより、ディスク１と
ハブとの間に相対的なずれが発生し易く、また、ディス
クｌやハブに例えばディスクカートリッツの落下衝撃等
の負荷がかかると、下ハブ２と上ハブ３との嵌合が緩み
、ディスク１がハブに対してずれてしまい、記録、再生
時にエラーが発生し易いという問題点があった。However, the manufacturing method for attaching the disk i and the hub described above involves fitting the upper hub 3 to the lower hub 2 and sandwiching the disk l between the two hubs 2 and 3, thereby attaching the disk l to the lower hub. 2 and the upper hub 3 prevents the lower hub 3 and the disk 1 from misaligning in the rotational (circumferential) direction, radial direction, etc. Due to mutual dimensional variations in the engagement holes lb, relative misalignment is likely to occur between the disc 1 and the hub, and when a load is applied to the disc 1 or the hub, such as from a falling impact of a disc cartridge, There has been a problem in that the fitting between the lower hub 2 and the upper hub 3 becomes loose, causing the disk 1 to shift relative to the hub, and errors are likely to occur during recording and reproduction.
この問題点に対処するに、下ハブの上面に液状の接着剤
を塗布し、接着剤が硬化ずろ前にディスクを位置決めし
て接着剤を介して下ハブの上面に固着した後、さらに、
下ハブに上ハブを嵌合することにより、ディスクを一対
の下ハブと上ハブ間で確実に挟持するようにした製造方
法が一般に広く採用されている。To deal with this problem, a liquid adhesive is applied to the upper surface of the lower hub, the disk is positioned before the adhesive hardens, and the disk is fixed to the upper surface of the lower hub via the adhesive, and then,
Generally, a manufacturing method is widely adopted in which the disk is reliably held between a pair of lower hub and upper hub by fitting the upper hub to the lower hub.
［発明が解決しようとする問題点］
しかし、このような従来の接着剤によりディスクを下ハ
ブに固着するディスクカートリッジの製造方法では、前
記下ハブの上面に液状の接着剤を均一に塗布する作業に
熟練を要し、その接着剤の層のコントロール゛が難しく
、かつ前記下ハブに塗布された接着剤が硬化する前にデ
ィスクを接着するため、下ハブの上面よりディスクの記
録エリア。[Problems to be Solved by the Invention] However, in the conventional method of manufacturing a disk cartridge in which the disk is fixed to the lower hub with adhesive, a process of uniformly applying liquid adhesive to the upper surface of the lower hub is required. The recording area of the disc is removed from the upper surface of the lower hub because it requires skill and difficult to control the adhesive layer, and because the disc is bonded before the adhesive applied to the lower hub hardens.
へ接着剤が飛散したり、流出等したりしてはみ出し易く
、ディスクとハブの位置決め作業が煩雑となり、出来上
がったディスクカートリッジの記録再生時にエラーが発
生し易いという問題点があった。There have been problems in that the adhesive tends to scatter or leak out, making the positioning work of the disk and hub complicated, and errors are likely to occur when recording and reproducing the finished disk cartridge.
そこで、この発明は、前述の問題点を解消したディスク
カートリッジの製造方法を提供するものである。SUMMARY OF THE INVENTION Therefore, the present invention provides a method for manufacturing a disk cartridge that solves the above-mentioned problems.
［問題点を解決するための手段］
この発明は、ディスクを保持するハブに接着剤を塗布し
て硬化させ、次に、前記ハブの硬化した接着剤の上に前
記ディスクを載せて該接着剤を加熱することにより前記
ハブとディスクとを溶若し、その後、前記ディスクを前
記ハブを介してケース本体内に回転自在に収容せしめる
ことを、その構成としている。[Means for Solving the Problems] This invention applies an adhesive to a hub that holds a disk and cures it, then places the disk on the hardened adhesive of the hub and cures the adhesive. The hub and disk are melted by heating, and then the disk is rotatably accommodated in the case body via the hub.
［作用コ
ディスクは、ハブの硬化した接着剤上に載せられて該接
着剤を加熱することによりハブに容易に位置決めされて
溶着される。このようにディスクカートリッジの製造工
程において硬化した接着剤を用いるため、従来のように
、硬化する前の液状又はゲル状（半硬化状）の接着剤を
用いろ場合に比較して、接着剤の層のコントロールが容
易であり、かつディスクの記録エリアへの接着剤のはみ
出しも阻止される。[The working codisk is easily positioned and welded to the hub by resting on the hardened adhesive of the hub and heating the adhesive. Because a hardened adhesive is used in the manufacturing process of the disk cartridge, the adhesive is less expensive than the conventional method, which uses a liquid or gel (semi-hardened) adhesive before it hardens. The layers can be easily controlled, and the adhesive is prevented from extruding into the recording area of the disc.
［実施例コ
以下、この発明に係るディスクカートリッジの製造方法
を図面に示す実施例に基づいて説明する。[Example 7] Hereinafter, a method for manufacturing a disk cartridge according to the present invention will be explained based on an example shown in the drawings.
この実施例にあっては、先ず、ディスクカートリッジの
ディスク１０を挟持（保持）ずろ一対の下ハブ２０及び
上ハブ３０のうち、下ハブ２０の上面（ディスク１０を
挾む面）２０ａに例えばポリエチレンテレフタレート（
ＰＥＴ）系の接着剤Ａを均一に塗布し、この接着剤Ａを
所定の乾燥機により乾燥させて硬化させる。詳述すると
、前記下ハブ２０は例えば合成樹脂製で略円盤状に形成
してあり、第１．２図に示すように、その上面２Ｏａ側
の中央に円筒部２１を一体成形しである。また、この下
ハブ２０の円筒部２１より偏した位置に前記ディスクカ
ートリッジのドライブ装置の駆動ピン（いずれら図示し
ない）が挿入される駆動用孔２２を形成しであると共に
、この駆動用孔２２と１８０°対称の位置に円筒状大径
のハブ位置決め突起２３を突出形成しである。さらに、
下ハブ２０の上面２０ａには９０°間隔毎に放射状に４
本のピン状のハブ位置決め凸部２４をそれぞれ突出形成
しである。而して、前記下ハブ２０の上面２０ａの円筒
部２１側の突出部２０８′に、第３図に示すように、前
述の方法により接着剤Ａが均一に塗布されて硬化しであ
る。In this embodiment, first, of a pair of lower hubs 20 and upper hubs 30 that hold (hold) the disk 10 of the disk cartridge, the upper surface 20a of the lower hub 20 (the surface that sandwiches the disk 10) is made of polyethylene, for example. Terephthalate (
PET) based adhesive A is applied uniformly, and this adhesive A is dried and hardened using a predetermined dryer. More specifically, the lower hub 20 is made of, for example, synthetic resin and is formed into a substantially disk shape, and has a cylindrical portion 21 integrally molded at the center of the upper surface 2Oa side, as shown in FIG. 1.2. Further, a drive hole 22 into which a drive pin (not shown) of the disk cartridge drive device is inserted is formed at a position offset from the cylindrical portion 21 of the lower hub 20. A cylindrical large-diameter hub positioning protrusion 23 is formed protrudingly at a position 180° symmetrical to the above. moreover,
On the upper surface 20a of the lower hub 20, there are four radial lines arranged at intervals of 90°.
A pin-shaped hub positioning convex portion 24 is formed in a protruding manner. Then, as shown in FIG. 3, the adhesive A is uniformly applied to the protruding portion 208' of the upper surface 20a of the lower hub 20 on the side of the cylindrical portion 21 and cured.
前記ディスク１０はフレキシブルな高分子素材によって
円盤シート状に形成しである。そして、その両側面には
磁気記録面を設けであると共に、中央部には面記下ハブ
２０の円筒部２１に嵌め合イつされる中央孔１１を形成
しである。また、ディスクＩＯの中央孔１１の周縁部分
には、面記下ハブ２０の駆動用孔２２．突起２３．凸部
２４に対応する大小の番孔！ ２，１３．１４をそれぞ
れ形成しである。The disk 10 is made of a flexible polymer material and is formed into a disk sheet shape. A magnetic recording surface is provided on both sides thereof, and a central hole 11 is formed in the center to fit into the cylindrical portion 21 of the lower hub 20. Further, a driving hole 22 of the lower hub 20 is provided at the peripheral edge of the central hole 11 of the disk IO. Protrusion 23. Large and small holes corresponding to the convex part 24! 2, 13 and 14, respectively.
面記上ハブ３０は例えば合成樹脂製で略円盤状に形成し
てあり、その中央に前記下ハブ２ｏの円筒部２１に嵌め
合わされる嵌合孔３１を有している。而して、上ハブ３
０は、その下面３０ａ側の下ハブ２０の駆動用孔２２．
突起２３．凸部２４にそれぞれ対応する位置に駆動用孔
３２．大径穴３３、小径穴３４をそれぞれ形成しである
。The surface upper hub 30 is made of synthetic resin, for example, and is formed into a substantially disk shape, and has a fitting hole 31 in the center thereof into which the cylindrical portion 21 of the lower hub 2o is fitted. Therefore, upper hub 3
0 is the driving hole 22.0 of the lower hub 20 on the lower surface 30a side.
Protrusion 23. Driving holes 32. are provided at positions corresponding to the convex portions 24. A large diameter hole 33 and a small diameter hole 34 are formed respectively.
次に、前記下ハブ２０の硬化した接着剤Ａ」二にディス
ク１０を該下ハブ２０の突起２３及び凸部２４で位置決
めして載置した後で、超音波溶着機等でディスクＩＯ側
から前記硬化した接着剤Ａを超音波溶着ホーン４０によ
り加熱して溶かすことにより、ディスク１０を下ハブ２
０の上面２０ａの突出部２０ａ′に溶着する。この時に
、硬化した接着剤Ａ上にディスクｌＯを載せるので、接
着剤を使用しない場合と同様に前記ディスク１ｏと下ハ
ブ２０との位置決め容易に行うことができろ。Next, after positioning and placing the disk 10 on the hardened adhesive A'' of the lower hub 20 using the protrusions 23 and convex portions 24 of the lower hub 20, the disk 10 is placed on the disk IO side using an ultrasonic welding machine or the like. By heating and melting the cured adhesive A with an ultrasonic welding horn 40, the disk 10 is attached to the lower hub 2.
0 to the protruding portion 20a' of the upper surface 20a. At this time, since the disk 10 is placed on the hardened adhesive A, the positioning of the disk 10 and the lower hub 20 can be easily performed in the same way as when no adhesive is used.
また、硬化した均一層の接着剤Ａを用いるため、従来の
ように、硬化する前の液状又はゲル状（半硬化状）の接
着剤を用いる場合に比較して、接着剤層のコントロール
が容易であり、かつディスク１０の記録エリアへの飛散
、流出等による接着剤のはみ出しも阻止される。In addition, since a uniform layer of adhesive A is used, it is easier to control the adhesive layer than when using a liquid or gel (semi-cured) adhesive that has not yet been cured. Moreover, the adhesive is prevented from spilling out into the recording area of the disk 10 due to scattering or leakage.
次に、第４図に示すように、前記ディスクｌ。Next, as shown in FIG. 4, the disk l.
を溶着した下ハブ２０に上ハブ３０を嵌め合わせて両ハ
ブ２０．３０を超音波溶着して、ディスク１０を一対の
下ハブ２０と上ハブ３０間で挾持する。The upper hub 30 is fitted onto the lower hub 20 which has been welded, and both hubs 20 and 30 are ultrasonically welded, and the disk 10 is held between the pair of lower hub 20 and upper hub 30.
その後、前述のようにして一対の下ハブ２０と上ハブ３
０を取り付けたディスクＩＯを、一対のライナー４１．
４１を介して上シェル４１Ａと下シェル４１Ｂとからな
るケース本体４１に回転可能に収容し、面記両シェル４
１Ａ、４１Ｂの周縁を溶着した後で、ンヤッタ４２およ
び該シャッタ４２を開閉付勢する一対のスプリング４３
．４３をケース本体４１内に挿入して該シャッタ４２に
係止させることにより、第６図に示すようなディスクカ
ートリッジが出来上がる。Thereafter, the pair of lower hubs 20 and upper hubs 3 are assembled as described above.
0 attached to the disk IO with a pair of liners 41.
41, and is rotatably housed in a case body 41 consisting of an upper shell 41A and a lower shell 41B.
After welding the peripheral edges of 1A and 41B, a pair of springs 43 that bias the shutter 42 and the shutter 42 to open and close are removed.
．． 43 into the case body 41 and locked by the shutter 42, a disk cartridge as shown in FIG. 6 is completed.
このようにして製造されたディスクカートリッジは、デ
ィスク１０と一対の下ハブ２０および上ハブ３０を突起
２３．凸部２４および接着剤Ａ等により確実に位置決め
されて固着されているので、ハブとディスク１０の相互
間の回転方向と径方向及び軸方向のずれを確実に阻止す
ることができろ。The disk cartridge manufactured in this manner has a disk 10 and a pair of lower hub 20 and upper hub 30 with protrusions 23. Since they are reliably positioned and fixed by the convex portion 24 and the adhesive A, it is possible to reliably prevent the hub and the disk 10 from shifting in the rotational direction, radial direction, and axial direction.
これにより、落下等によりディスクカートリッジに衝撃
がかかっても、両ハブ２０．３０の嵌合関係に緩みを生
じてディスク１０が両ハブ２０．３０間からずれること
はなく、記録、再生時にエラーが発生することはない。As a result, even if a shock is applied to the disk cartridge due to a drop or the like, the fitting relationship between the two hubs 20 and 30 will not loosen and the disk 10 will not be displaced from between the two hubs 20 and 30, thereby preventing errors during recording and playback. It will never occur.
このように長期に渡ってハブ２０．３０およびディスク
１０の厚み方向の管理が容易であり、高い精度を有した
ディスクカートリッジを提供することができる。In this way, the thickness direction of the hub 20, 30 and the disk 10 can be easily controlled over a long period of time, and a highly accurate disk cartridge can be provided.
以上、実施例について説明したが、この他に各種の設計
変更が可能であり、例えば上記実施例にあっては、下ハ
ブ２０とディスク１０とを硬化した接着剤Ａを介して超
音波溶着した後で該下ハブ２０に上ハブ３０を嵌合して
超音波溶着を２回に渡って行ったが、下ハブ２０とディ
スク１０とを超音波溶着する前に、下ハブ２０にディス
ク１０を挾持するように上ハブ３０を嵌め合せた後で、
下ハブ２０とディスクｌＯ及び下ハブ２０と上ハブＩＯ
とを同時に超音波溶着して、溶着工程を一工程減らすよ
うにしてもよい。Although the embodiment has been described above, various other design changes are possible. For example, in the above embodiment, the lower hub 20 and the disk 10 are ultrasonically welded via hardened adhesive A. Later, the upper hub 30 was fitted to the lower hub 20 and ultrasonic welding was performed twice, but before ultrasonically welding the lower hub 20 and the disk 10, the disk 10 was attached to the lower hub 20. After fitting the upper hub 30 in a pinching manner,
Lower hub 20 and disk IO and lower hub 20 and upper hub IO
They may be ultrasonically welded at the same time to reduce the number of welding steps by one.
［発明の効果］
以上の説明から明らかなように、この発明に係るディス
クカートリッジの製造方法゛よれば、ディスクとハブの
溶着工程において硬化した接着剤を用いるため、従来の
ように、硬化する前の液状又はゲル状（半硬化状）の接
着剤を用いる場合に比較して、ディスクとハブの位置決
め作業を容易かつ確実に行うことができる。また、接着
剤の層のコントロールが容易となり、ディスクの記録エ
リアへの接着剤のはみ出しを阻止することができる。[Effects of the Invention] As is clear from the above description, according to the disk cartridge manufacturing method according to the present invention, since a hardened adhesive is used in the process of welding the disk and the hub, the adhesive is Compared to the case of using liquid or gel (semi-cured) adhesive, the positioning work of the disk and hub can be performed more easily and reliably. Furthermore, the adhesive layer can be easily controlled, and the adhesive can be prevented from spilling out into the recording area of the disc.
従って、出来上がったディスクカートリッジの記録、再
生時のエラの発生を確実に防止することができる。Therefore, it is possible to reliably prevent errors from occurring during recording and reproduction of the completed disc cartridge.
第１図はこの発明に係るディスクカートリッジの製造方
法を適用した一実施例を示す要部の斜視図、第２図は下
ハブの平面図、第３図は第２図中１−Ｉ［１線に沿う断
面図、第４図はディスクを溶着した下ハブに上ハブを取
付ける状態を示す断面図、第５図はディスクカートリッ
ジの分解斜視図、第６図はディスクカートリッジの平面
図、第７図は従来例の分解断面図、第８図は従来例の組
立てられた状態を示す断面図である。
１０・・・ディスク、２０・・・ハブ、４１・・・ケー
ス本体、Ａ・・・硬化した接着剤。
下ハブの平面図
第２図
第２閉中ｍ−ｍ濠輩訪面図
第３図
第４図
丑
舌スク〃−Ｆ１ツバ／シの平面図
第６図FIG. 1 is a perspective view of essential parts showing an embodiment to which the disk cartridge manufacturing method according to the present invention is applied, FIG. 2 is a plan view of the lower hub, and FIG. 3 is a 1-I [1 4 is a sectional view showing how the upper hub is attached to the lower hub to which the disk is welded. FIG. 5 is an exploded perspective view of the disk cartridge. FIG. 6 is a plan view of the disk cartridge. The figure is an exploded cross-sectional view of the conventional example, and FIG. 8 is a cross-sectional view showing the conventional example in an assembled state. DESCRIPTION OF SYMBOLS 10...Disc, 20...Hub, 41...Case body, A...Hardened adhesive. Plan view of the lower hub Fig. 2 Fig. 2 Closed view of the m-m moat Fig. 4 Fig. 4 Plan view of the ox tongue ski-F1 brim Fig. 6
Claims (1)
載せて該接着剤を加熱することにより前記ハブとディス
クとを溶着し、 その後、前記ディスクを前記ハブを介してケース本体内
に回転自在に収容せしめることを特徴とするディスクカ
ートリッジの製造方法。[Scope of Claims] An adhesive is applied to a hub that holds a disk and cured, and then the disk is placed on the hardened adhesive of the hub and the adhesive is heated, thereby attaching the hub to the hub. 1. A method of manufacturing a disk cartridge, comprising: welding the disk to the disk; and then rotatably housing the disk within a case body via the hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62043532A JP2545832B2 (en) | 1987-02-26 | 1987-02-26 | Method for producing disc cartridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62043532A JP2545832B2 (en) | 1987-02-26 | 1987-02-26 | Method for producing disc cartridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63209083A true JPS63209083A (en) | 1988-08-30 |
| JP2545832B2 JP2545832B2 (en) | 1996-10-23 |
Family
ID=12666353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62043532A Expired - Fee Related JP2545832B2 (en) | 1987-02-26 | 1987-02-26 | Method for producing disc cartridge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2545832B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02189776A (en) * | 1989-01-18 | 1990-07-25 | Kyocera Corp | Optical disk and its manufacture |
| US7562374B2 (en) | 2004-11-17 | 2009-07-14 | Electronics And Telecommunications Research Institute | Form factor disk |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60186565U (en) * | 1984-05-18 | 1985-12-10 | ソニー株式会社 | magnetic disk |
| JPS6198278U (en) * | 1984-11-28 | 1986-06-24 |
-
1987
- 1987-02-26 JP JP62043532A patent/JP2545832B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60186565U (en) * | 1984-05-18 | 1985-12-10 | ソニー株式会社 | magnetic disk |
| JPS6198278U (en) * | 1984-11-28 | 1986-06-24 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02189776A (en) * | 1989-01-18 | 1990-07-25 | Kyocera Corp | Optical disk and its manufacture |
| US7562374B2 (en) | 2004-11-17 | 2009-07-14 | Electronics And Telecommunications Research Institute | Form factor disk |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2545832B2 (en) | 1996-10-23 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |