JPH0516706Y2 - - Google Patents
Info
- Publication number
- JPH0516706Y2 JPH0516706Y2 JP1985026151U JP2615185U JPH0516706Y2 JP H0516706 Y2 JPH0516706 Y2 JP H0516706Y2 JP 1985026151 U JP1985026151 U JP 1985026151U JP 2615185 U JP2615185 U JP 2615185U JP H0516706 Y2 JPH0516706 Y2 JP H0516706Y2
- Authority
- JP
- Japan
- Prior art keywords
- disk
- lower halves
- cartridge
- screws
- opening
- 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.)
- Expired - Lifetime
Links
- 230000002093 peripheral effect Effects 0.000 claims description 31
- 210000000078 claw Anatomy 0.000 claims description 8
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 239000000057 synthetic resin Substances 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 description 9
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 229920005668 polycarbonate resin Polymers 0.000 description 3
- 239000004431 polycarbonate resin Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、書込み自在のデイスク（Writable
Disc）と称される光デイスクや光磁気デイスク
の如き記録（書込み）及び再生（読取り）の両方
が可能なデイスクを用いるのに最適なデイスクカ
ートリツジに関するものである。[Detailed explanation of the invention] [Industrial application field] The invention is a writable disk.
The present invention relates to a disk cartridge that is optimal for use with disks capable of both recording (writing) and reproducing (reading) such as optical disks and magneto-optical disks called "discs".
本考案は、記録媒体であるデイスクを合成樹脂
にて成形されたほゞ四角形状をなす上下ハーフか
らなるカートリツジ内に収納させ、上下ハーフは
周辺部を複数のビスによつてビス止めしてあるデ
イスクカートリツジにおいて、上記上下ハーフの
四つの周壁のうち上記デイスクの外周部が最も近
接された少なくとも一つの周壁の長さ方向のほゞ
中央部をこれらに一体に成形した係止爪とその係
合部とによつて上下から係止させることにより、
デイスクの直径に対するカートリツジの外形寸法
を極力小さく抑えながら、上下ハーフの平面精度
を確保し、かつビスの使用本数を減らすことがで
きるようにしたものである。
In this invention, a disk, which is a recording medium, is housed in a cartridge made of synthetic resin and consisting of upper and lower halves in a substantially rectangular shape, and the upper and lower halves are secured around the periphery with multiple screws. In the disk cartridge, at least one of the four circumferential walls of the upper and lower halves to which the outer circumference of the disk is closest has a locking pawl formed integrally with the substantially central portion of the circumferential wall in the length direction thereof, and a locking pawl therefor. By locking from above and below with the joint,
While keeping the external dimensions of the cartridge relative to the diameter of the disk as small as possible, the planar accuracy of the upper and lower halves can be ensured, and the number of screws used can be reduced.
周知の如く、光デイスクや光磁気デイスクの如
き書込み自在のデイスクは、指紋（油）やゴミ等
の付着があると、記録、再生にエラーを発生し易
いので、従来から専用カートリツジ内に収納して
いる。
As is well known, writable disks such as optical disks and magneto-optical disks are prone to recording and playback errors if they have fingerprints (oil) or dirt on them, so they have traditionally been stored in special cartridges. ing.
第４図は上記書込み自在のデイスクを用いた従
来のデイスクカートリツジを示したものであつ
て、ポリカーボネート樹脂等にて成形されたデイ
スク１がポリカーボネート樹脂等にて成形された
ほゞ四角形状をなす上下ハーフ２，３からなるカ
ートリツジ４内に収納されている。なお上下ハー
フ２，３はデイスク１の外周部１ａから外れた外
周部２ａ，３ａでセルフタツピング用の複数のビ
ス５によつて上下からビス止めされている。そし
て上下ハーフ２，３の中央部には円形のターンテ
ーブル挿入孔６が設けられ、これらの一側部で中
央部から外周部２ａ，３ａにかけて長方形の光学
ヘツド挿入孔７が設けられている。なおこれら光
学ヘツド挿入孔７はステンレス板等にてプレス加
工された断面ほゞコ形をなすシヤツター８によつ
て開閉されるように構成されている。そしてこの
デイスクカートリツジがデイスクプレーヤーに装
着されると、ターンテーブル挿入孔６内に挿入さ
れたターンテーブル上にデイスク１が装着され
て、このデイスク１が上下ハーフ２，３の上下
ほゞ中間位置に浮かされて上下ハーフ２，３に対
して非接触状態となると共に、シヤツター８が開
蓋されて光学ヘツド挿入孔７内に挿入された光学
ヘツドがデイスク１に近接される。そしてターン
テーブルによつてデイスク１を高速回転しながら
光学ヘツドによつてデイスク１を半径方向に走査
して所望の記録、再生が行われる。 FIG. 4 shows a conventional disk cartridge using the above-mentioned writable disk, in which the disk 1 is made of polycarbonate resin or the like and has a substantially rectangular shape made of polycarbonate resin or the like. It is housed in a cartridge 4 consisting of upper and lower halves 2 and 3. Note that the upper and lower halves 2 and 3 are screwed from above and below by a plurality of self-tapping screws 5 at outer circumferential portions 2a and 3a that are separated from the outer circumferential portion 1a of the disk 1. A circular turntable insertion hole 6 is provided at the center of the upper and lower halves 2, 3, and a rectangular optical head insertion hole 7 is provided at one side of these from the center to the outer peripheral portions 2a, 3a. These optical head insertion holes 7 are configured to be opened and closed by shutters 8 which are pressed from a stainless steel plate or the like and have a substantially rectangular cross section. When this disc cartridge is installed in the disc player, the disc 1 is installed on the turntable inserted into the turntable insertion hole 6, and the disc 1 is placed at a position approximately midway between the upper and lower halves 2 and 3. At the same time, the shutter 8 is opened and the optical head inserted into the optical head insertion hole 7 is brought close to the disk 1. Then, while the disk 1 is rotated at high speed by the turntable, the optical head scans the disk 1 in the radial direction to perform desired recording and reproduction.
この種従来のデイスクカートリツジで、特に、
直径が30cmの大型のデイスク１を用いるもので
は、次のような問題点があつた。
In this kind of conventional disk cartridge, especially,
In the case of using a large disk 1 having a diameter of 30 cm, the following problems occurred.
即ち、デイスクカートリツジをオートチエンジ
ヤー等におけるストツカー内に多数収納する際の
省スペース化を考慮すると、デイスクに対するカ
ートリツジ４の外形寸法Ａ，Ｂを極力小さくする
ことが望まれる。 That is, in consideration of space saving when storing a large number of disk cartridges in a stocker of an autochanger or the like, it is desirable to make the external dimensions A and B of the cartridge 4 relative to the disk as small as possible.
一方、ほゞ四角形状をなす上下ハーフ２，３の
四つの周壁２ｂ〜２ｅ，３ｂ〜３ｅの夫々の長さ
方向のほゞ中央部Ｐ１〜Ｐ４には内部に収納され
たデイスク１の外周部１ａが夫々近接される箇所
である。そしてこれら夫々の中央部Ｐ１〜Ｐ４を
ビス止めしようとすれば、夫々の周壁２ｂ〜２
ｅ，３ｂ〜３ｅとデイスク１の外周部１ａとの間
にビス止めのための余分な大きなスペースをとら
なければならず、カートリツジ４の外形寸法Ａ，
Ｂが拡大されてしまうので好ましくない。 On the other hand, the outer circumferential portion of the disk 1 housed inside is located approximately at the central portions P1 to P4 in the longitudinal direction of the four circumferential walls 2b to 2e, 3b to 3e of the upper and lower half halves 2 and 3, each having a substantially rectangular shape. 1a are the points that are approached respectively. If you try to screw these respective center parts P1 to P4, the respective peripheral walls 2b to 2
e, 3b to 3e and the outer periphery 1a of the disk 1, an extra large space must be provided for the screw fixing, and the outer dimensions of the cartridge 4, A,
This is not preferable because B will be enlarged.
そこで従来は、デイスク１の外周部１ａが最も
近接される三つの周壁２ｂ〜２ｄ，３ｂ〜３ｄ
（なお残りの周壁２ｅ，３ｅはシヤツター８が取
付けられる関係でデイスク１の外周部１ａをあま
り近接させることができない。）部分では、夫々
中央部Ｐ１〜Ｐ３を挾んでその両側にビス５を配
置するようにして、カートリツジ４の外形寸法
Ａ，Ｂの縮小化を図つている。 Therefore, conventionally, the outer circumferential portion 1a of the disk 1 is placed on the three circumferential walls 2b to 2d, 3b to 3d that are closest to each other.
(In addition, since the shutter 8 is attached to the remaining peripheral walls 2e and 3e, the outer peripheral part 1a of the disk 1 cannot be brought very close to the outer peripheral part 1a of the disk 1.) At these parts, screws 5 are placed on both sides of the central parts P1 to P3, respectively. In this way, the outer dimensions A and B of the cartridge 4 are reduced.
しかしながら、直径が30cmの大型のデイスク１
を用いる大型のデイスクカートリツジでは、夫々
の中央部Ｐ１〜Ｐ３を挾んでその両側に配置され
るビス５のスパンｌ１，ｌ２が大きくなるため
に、上下ハーフ２，３の平面精度が失われる。こ
の結果、特に三つの周壁２ｂ〜２ｄ，３ｂ〜３ｄ
の中央部Ｐ１〜Ｐ３が上下に彎曲して開き、これ
らの中央部Ｐ１〜Ｐ３に図に示すような隙間ｇが
でき易かつた。 However, a large disk 1 with a diameter of 30 cm
In the case of a large disk cartridge using the above, since the spans l1 and l2 of the screws 5 arranged on both sides of the respective central parts P1 to P3 become large, the planar accuracy of the upper and lower halves 2 and 3 is lost. As a result, especially the three peripheral walls 2b to 2d, 3b to 3d
The central portions P1 to P3 of the disk were curved upward and downward to open, and gaps g as shown in the figure were likely to be formed in these central portions P1 to P3.
また従来は、直径が30cmの大型のデイスク１を
用いる大型のデイスクカートリツジでは12〜14本
もの非常に多数のビス５を用いて上下ハーフ２，
３をビス止めしており、部品点数及び組立工数が
多く、組立性が悪い上に著しくコスト高について
いる。 In addition, conventionally, in a large disk cartridge using a large disk 1 with a diameter of 30 cm, a very large number of screws 5 of 12 to 14 were used to connect the upper and lower halves 2,
3 are fixed with screws, which requires a large number of parts and a large number of assembly steps, resulting in poor assembly efficiency and a significant increase in cost.
本考案は、デイスクの外周部が略近接された上
下ハーフの少なくとも一辺の周壁の位置に係止手
段を設け、この係止手段がビスに比べて小スペー
スである係合爪及び係合部を備え、しかも上下ハ
ーフに一体に各々設けられたこれら係合爪及び係
合部によつて係止するようにしたものである。 The present invention provides a locking means at a position on at least one side of the peripheral wall of the upper and lower halves where the outer periphery of the disk is substantially close to each other, and this locking means has an engaging pawl and an engaging portion that take up a smaller space than screws. Moreover, it is configured to be locked by these engaging pawls and engaging portions that are integrally provided on the upper and lower halves, respectively.
本考案は、少なくとも一方に開口を有し、その
内部にデイスクを回転自在に収納して組立てられ
る合成樹脂製のほぼ四角形状の上下ハーフと、組
立後の上記上下ハーフの一辺に沿つて摺動可能に
設けられて、上記開口を開閉する断面コ字状のシ
ヤツターとを備えたデイスクカートリツジにおい
て、上記上下ハーフの他の三辺の内、一方のハー
フの周壁の内面側に係合爪を、他方のハーフの周
壁の内面側に係合部を、上記三辺の少なくとも一
辺の周壁が上記デイスクの外周部と略近接する位
置に一体的に各々設け、上記係合爪及び上記係合
部が設けられた位置より離間された四隅の近傍に
おいて、上記上下ハーフがビス止めされたもので
ある。
The present invention consists of approximately square-shaped upper and lower halves made of synthetic resin that have an opening on at least one side and can be assembled by rotatably storing a disk inside the opening, and two halves that slide along one side of the upper and lower halves after assembly. In the disk cartridge cartridge, which is provided with a shutter having a U-shaped cross section for opening and closing the opening, an engaging claw is provided on the inner surface of the peripheral wall of one of the other three sides of the upper and lower halves. , an engaging portion is integrally provided on the inner surface side of the peripheral wall of the other half at a position where the peripheral wall on at least one of the three sides is substantially close to the outer peripheral portion of the disk, the engaging claw and the engaging portion The upper and lower halves are screwed in the vicinity of the four corners spaced apart from the positions where the upper and lower halves are provided.
本考案の、上下ハーフに一体に成形された係止
爪とその係合部とからなる係止手段は、ビスに比
べて小スペースであるので、この係止手段によつ
て上下ハーフの周壁の長さ方向のほゞ中央部を上
下から係止しても、デイスクに対するカートリツ
ジの外形寸法が大きくなることがない。そして上
下ハーフの周壁の長さ方向のほゞ中央部を上下か
ら確実に係止することができるので、上下ハーフ
の平面精度を確保しながら、上下ハーフをビス止
めするビスの使用本数を大巾に減らすことができ
る。
The locking means of the present invention, which consists of a locking pawl integrally formed on the upper and lower halves and its engaging portion, takes up a smaller space than a screw, so this locking means can be used to secure the peripheral wall of the upper and lower halves. Even if the substantially central portion in the longitudinal direction is locked from above and below, the external dimensions of the cartridge relative to the disk will not increase. Since the longitudinal center of the peripheral wall of the upper and lower halves can be securely locked from above and below, the number of screws used to secure the upper and lower halves can be greatly reduced while ensuring the flatness of the upper and lower halves. can be reduced to
以下、本考案を光デイスクや光磁気デイスク等
の書込み自在のデイスクを用いたデイスクカート
リツジに適用した一実施例を第１図〜第３図によ
つて説明する。なお第４図に示した従来例と同一
構造部には同一の符号を付してその説明を省略し
た。またこの実施例では第４図に示した従来例と
同様に直径が30cmの大型のデイスク１を用いた大
型のデイスクカートリツジを示している。
An embodiment in which the present invention is applied to a disk cartridge using a writable disk such as an optical disk or a magneto-optical disk will be described below with reference to FIGS. 1 to 3. Note that the same reference numerals are given to the same structural parts as in the conventional example shown in FIG. 4, and the explanation thereof is omitted. Further, this embodiment shows a large disk cartridge using a large disk 1 having a diameter of 30 cm, similar to the conventional example shown in FIG.
本考案は、第２図に示す如く、上下ハーフ２，
３の四つの周壁２ｂ〜２ｅ，３ｂ〜３ｅのうち、
シヤツター８が取付けられている一辺の周壁２
ｅ，３ｅを除いて、デイスク１の外周部１ａが最
も近接される三辺の周壁２ｂ〜２ｄ，３ｂ〜３ｄ
の長さ方向のほゞ中央部Ｐ１〜Ｐ３を、夫々上下
ハーフ２，３に一体に成形された係止手段１０に
よつて上下から確実に係止したものである。 As shown in FIG.
Among the four peripheral walls 2b to 2e, 3b to 3e of No. 3,
Peripheral wall 2 on one side where shutter 8 is attached
The peripheral walls 2b to 2d, 3b to 3d on the three sides to which the outer peripheral part 1a of the disk 1 is closest, except for e and 3e.
Approximately central portions P1 to P3 in the length direction are securely locked from above and below by locking means 10 integrally formed in the upper and lower halves 2 and 3, respectively.
そして、これら各係止手段１０は、第１図に示
す如く、ポリカーボネート樹脂等により射出成形
された上下ハーフ２，３の周壁２ｂ〜２ｄ，３ｂ
〜３ｄのうち何れか一方に一体に成形された係止
爪１１を他方に成形された凹部からなる係合部１
２に係合させる構造によつて構成している。 As shown in FIG. 1, each of these locking means 10 is made of peripheral walls 2b to 2d, 3b of the upper and lower halves 2 and 3, which are injection molded from polycarbonate resin or the like.
An engaging portion 1 consisting of a locking pawl 11 integrally formed on one of ~3d and a recess formed on the other.
2.
また、三辺の周壁２ｂ〜２ｄ，３ｂ〜３ｄの
ほゞ中央部Ｐ１〜Ｐ３を除いて、上下ハーフ２，
３は第４図に示した従来例と同様にデイスク１の
外周部１ａから外れた外周部２ａ，３ａでセルフ
タツピング用の複数のビス５によつて上下からビ
ス止めされているが、上記三辺の周壁２ｂ〜２
ｄ，３ｂ〜３ｄのほゞ中央部Ｐ１〜Ｐ３を係止手
段１０によつて夫々上下から係止したことによつ
て、ビス５の使用本数は従来の12〜14本から10〜
12本に減少されている。 In addition, except for the substantially central portions P1 to P3 of the three peripheral walls 2b to 2d and 3b to 3d, the upper and lower halves 2,
3 is screwed from above and below by a plurality of screws 5 for self-tapping at outer peripheral parts 2a and 3a which are separated from the outer peripheral part 1a of the disk 1, as in the conventional example shown in FIG. Peripheral walls 2b to 2 on three sides
By locking the approximately central portions P1 to P3 of d and 3b to 3d from above and below using the locking means 10, the number of screws 5 used has been reduced from the conventional 12 to 14 to 10 to 3.
It has been reduced to 12 pieces.
ところで、上下ハーフ２，３に一体に成形した
係止爪１１と係合部１２とからなる係止手段１０
は、第１図に示す如くビス５に比べて小スペース
Ｓであるので、この係止手段１０によつて三辺の
周壁２ｂ〜２ｄ，３ｂ〜３ｄのほゞ中央部Ｐ１〜
Ｐ３を上下から係止しても、第１図及び第２図に
示す如く三辺の周壁２ｂ〜２ｄ，３ｂ〜３ｄの
ほゞ中央部Ｐ１〜Ｐ３にデイスク１の外周部１ａ
を非常に小さな距離ｌ３に近接させることができ
るので、デイスク１に対するカートリツジ４の外
形寸法Ａ，Ｂが大きくなることがなく、この外形
寸法Ａ，Ｂを極力小さく抑えることができる。ま
た三辺の周壁２ｂ〜２ｄ，３ｂ〜３ｄのほゞ中央
部Ｐ１〜Ｐ３が夫々係止手段１０によつて上下か
ら係止されているので、第１図に示す如くこれら
夫々の中央部Ｐ１〜Ｐ３を挾んでその両側に配置
されるビス５のスパンｌ４，ｌ５が大きくても、
上下ハーフ２，３の平面精度を確保することがで
きる。この結果、三辺の周壁２ｂ〜２ｄ，３ｂ〜
３ｄの中央部Ｐ１〜Ｐ３が上下に彎曲して開くよ
うなことがなく、これらの中央部Ｐ１〜Ｐ３に第
４図で示したような隙間ｇができることがない。 By the way, the locking means 10 consists of a locking pawl 11 and an engaging portion 12 integrally formed on the upper and lower halves 2 and 3.
As shown in FIG. 1, since the space S is smaller than that of the screw 5, the locking means 10 locks the substantially central portions P1 to P1 of the three peripheral walls 2b to 2d, 3b to 3d.
Even if P3 is locked from above and below, as shown in FIGS.
can be brought close to each other by a very small distance l3, so that the external dimensions A and B of the cartridge 4 with respect to the disk 1 do not become large, and these external dimensions A and B can be kept as small as possible. Further, since the substantially central portions P1 to P3 of the three peripheral walls 2b to 2d and 3b to 3d are respectively locked from above and below by the locking means 10, as shown in FIG. ~ Even if the spans l4 and l5 of the screws 5 placed on both sides of P3 are large,
The planar accuracy of the upper and lower halves 2 and 3 can be ensured. As a result, the peripheral walls 2b to 2d, 3b to
The central portions P1 to P3 of 3d do not curve upward or downward and open, and gaps g as shown in FIG. 4 are not formed in these central portions P1 to P3.
そして、上記スパンｌ４，ｌ５を大きくとるこ
とが可能であることに起因して、ビス５の使用本
数を減らすことが可能になつた。 Since it is possible to increase the spans l4 and l5, it has become possible to reduce the number of screws 5 used.
なお、各係止爪１１の上下長さをできるだけ長
くしてその各係止爪１１に適度な弾性を付与させ
れば、上下ハーフ２，３を上下から平行に嵌合さ
せることによつて三つの係止爪１１を三つの係合
部１２に容易かつ簡単に係合させることができ
る。しかし各弾性爪１１の弾性があまりなくて
も、第３図に示す如く、各弾性爪１１を各係合部
１２に矢印ａで示すように潜り込ませるようにし
て上下ハーフ２，３を上下から嵌合することがで
きる。但しこの方法で上下ハーフ２，３を組立て
ようとした場合には、中央部Ｐ２とＰ３とのうち
何れか一方の係止爪１１には削除するのが好まし
い。 Note that if the vertical length of each locking pawl 11 is made as long as possible to impart appropriate elasticity to each locking pawl 11, it is possible to fit the upper and lower halves 2 and 3 in parallel from above and below. The three locking claws 11 can be easily and easily engaged with the three engaging portions 12. However, even if each elastic claw 11 does not have much elasticity, as shown in FIG. Can be fitted. However, when attempting to assemble the upper and lower halves 2 and 3 using this method, it is preferable to remove the locking pawl 11 from one of the central portions P2 and P3.
以上、本考案の一実施例に付き述べたが、本考
案は実施例に限定されることなく、本考案の技術
的思想に基づいて各種の有効な変更が可能であ
る。 Although one embodiment of the present invention has been described above, the present invention is not limited to the embodiment, and various effective changes can be made based on the technical idea of the present invention.
例えば、本考案に用いるデイスクは両面記録の
デイスクでなくても、片面記録のデイスクであつ
ても良い。 For example, the disc used in the present invention does not have to be a double-sided recording disc, but may be a single-sided recording disc.
また実施例では、上下ハーフ２，３の三辺の周
壁２ｂ〜２ｄ，３ｂ〜３ｄのほゞ中央部Ｐ１〜Ｐ
３に夫々１個の係止爪１１と係合部１２とを設け
たが、特に、三辺の周壁２ｂ〜２ｄ，３ｂ〜３ｄ
の中央部Ｐ１〜Ｐ３の少なくとも一つに係止爪１
１と係合部１２とを設けたものであれば良い。ま
た中央部Ｐ１〜Ｐ４に設ける係止爪１１と係合部
１２との数は各々１個宛である必要はなく、各々
複数宛設けても良い。 In addition, in the embodiment, the substantially central portions P1 to P of the three peripheral walls 2b to 2d, 3b to 3d of the upper and lower halves 2 and 3
3 is provided with one locking pawl 11 and one engaging portion 12, but in particular, the peripheral walls 2b to 2d, 3b to 3d on three sides
A locking pawl 1 is attached to at least one of the central portions P1 to P3 of the
1 and an engaging portion 12 may be used. Further, the number of locking claws 11 and engaging portions 12 provided in the central portions P1 to P4 does not need to be one each, and may be provided in plural numbers.
また、本考案で言う係止爪１１が係合される係
合部１２は凹部に限られるものではなく、係止爪
１１と同様の係止爪の如き各種の係合構造を採用
できる。 Further, the engaging portion 12 with which the locking pawl 11 is engaged in the present invention is not limited to a recessed portion, and various types of engagement structures such as a locking pawl similar to the locking pawl 11 can be adopted.
また本考案は、光デイスクや光磁気デイスクの
如き書込み自在のデイスクを用いるものに限定さ
れることなく、各種の記録及び／又は再生用のデ
イスクを用いる各種のデイスクカートリツジに適
用可能である。 Furthermore, the present invention is not limited to those using writable disks such as optical disks and magneto-optical disks, but can be applied to various disk cartridges using various recording and/or reproducing disks.
本考案は、デイスクの直径に対するカートリツ
ジの外形寸法を極力小さく抑えながら、上下ハー
フの平面精度を確保し、かつビスの使用本数を減
らすことができるものであり、カートリツジの小
型化を図ると共に、部品点数及び組立工数の削減
による組立性の向上と低コスト化を図ることがで
きたものである。
This invention is capable of keeping the external dimensions of the cartridge relative to the disk diameter as small as possible, ensuring flatness accuracy of the upper and lower halves, and reducing the number of screws used. By reducing the number of parts and assembly man-hours, it is possible to improve assembly efficiency and reduce costs.
第１図〜第３図は本考案のデイスクカートリツ
ジの一実施例を示したものであつて、第１図は要
部を示した第２図−線断面図、第２図はデイ
スクカートリツジ全体の平面図、第３図は上下ハ
ーフの嵌合方法を示す断面図である。第４図は従
来のデイスクカートリツジ全体の平面図である。
図面に用いられた符号において、１……デイス
ク、１ａ……デイスクの外周部、２……上ハー
フ、３……下ハーフ、４……カートリツジ、５…
…ビス、１０……係止手段、１１……係止爪、１
２……係合部、である。
1 to 3 show an embodiment of the disk cartridge of the present invention, in which FIG. 1 is a sectional view taken along the line 2--FIG. 2 showing the main parts, and FIG. The overall plan view and FIG. 3 are cross-sectional views showing a method of fitting the upper and lower halves. FIG. 4 is a plan view of the entire conventional disk cartridge. In the symbols used in the drawings, 1... disk, 1a... outer periphery of disk, 2... upper half, 3... lower half, 4... cartridge, 5...
...screw, 10...locking means, 11...locking claw, 1
2...An engaging portion.
Claims (1)
スクを回転自在に収納して組立てられる合成樹脂
製のほぼ四角形状の上下ハーフと、組立後の上記
上下ハーフの一辺に沿つて摺動可能に設けられ
て、上記開口を開閉する断面コ字状のシヤツター
とを備えたデイスクカートリツジにおいて、 上記上下ハーフの他の三辺の内、一方のハーフ
の周壁の内面側に係合爪を、他方のハーフの周壁
の内面側に係合部を、上記三辺の少なくとも一辺
の周壁が上記デイスクの外周部と略近接する位置
に一体的に各々設け、 上記係合爪及び上記係合部が設けられた位置よ
り離間された四隅の近傍において、上記上下ハー
フがビス止めされていることを特徴とするデイス
クカートリツジ。[Claims for Utility Model Registration] Upper and lower halves made of synthetic resin that are assembled by having an opening on at least one side and rotatably storing a disk therein; and one side of the upper and lower halves after assembly. In a disc cartridge equipped with a shutter having a U-shaped cross section and slidable along the opening and opening and closing the opening, on the inner surface side of the peripheral wall of one of the other three sides of the upper and lower halves. An engaging claw is provided integrally with an engaging portion on the inner surface of the peripheral wall of the other half at a position where the peripheral wall on at least one of the three sides is substantially close to the outer peripheral portion of the disk, and the engaging claw and A disk cartridge characterized in that the upper and lower halves are fixed with screws in the vicinity of four corners spaced apart from the position where the engaging portion is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985026151U JPH0516706Y2 (en) | 1985-02-25 | 1985-02-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985026151U JPH0516706Y2 (en) | 1985-02-25 | 1985-02-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61145387U JPS61145387U (en) | 1986-09-08 |
| JPH0516706Y2 true JPH0516706Y2 (en) | 1993-05-06 |
Family
ID=30521892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985026151U Expired - Lifetime JPH0516706Y2 (en) | 1985-02-25 | 1985-02-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0516706Y2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5963877U (en) * | 1982-10-22 | 1984-04-26 | ソニー株式会社 | magnetic sheet jacket |
| JPS59157280U (en) * | 1983-04-05 | 1984-10-22 | ソニー株式会社 | magnetic sheet jacket |
| JPS59164979U (en) * | 1983-04-15 | 1984-11-05 | 松下電器産業株式会社 | Jacket for disk storage |
-
1985
- 1985-02-25 JP JP1985026151U patent/JPH0516706Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61145387U (en) | 1986-09-08 |
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