JP2581872Y2 - Disk cartridge - Google Patents
Disk cartridgeInfo
- Publication number
- JP2581872Y2 JP2581872Y2 JP1063492U JP1063492U JP2581872Y2 JP 2581872 Y2 JP2581872 Y2 JP 2581872Y2 JP 1063492 U JP1063492 U JP 1063492U JP 1063492 U JP1063492 U JP 1063492U JP 2581872 Y2 JP2581872 Y2 JP 2581872Y2
- Authority
- JP
- Japan
- Prior art keywords
- hole
- lid
- main body
- boss
- position reference
- 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 - Fee Related
Links
Description
【0001】[0001]
【産業上の利用分野】本考案は、小型のディスクカート
リッジ(ミニディスク等)に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small disk cartridge (such as a mini disk).
【0002】[0002]
【従来の技術】図2は、小型のディスクカートリッジ
(例えばミニディスクなど)の斜視図で、本体1と蓋2
とで構成されている。本体1には位置基準孔であるRE
FERENCE HOLE3a、3bが有り、記録再生
装置にディスクカートリッジをローディングした場合、
機械的な位置を決定する基準ガイドとなる。このため、
孔3aは直径3mmで公差が0から+0.01まで、ま
た楕円である孔3bは長径4.2mmで公差が0から+
0.2まで、短径3mmで公差が0から+0.07とい
う厳しい公差となっている。なお、これらのREFER
ENCE HOLE3a、3bを構成するディスクカー
トリッジの本体1側は貫通孔であり、蓋2側では未貫通
孔である。 2. Description of the Related Art FIG . 2 shows a small disk cartridge.
(For example, a mini-disc) in a perspective view.
It is composed of The body 1 has a position reference hole RE
FERENCE HOLE 3a, 3b available, record and playback
When loading a disk cartridge into the device,
It serves as a reference guide for determining the mechanical position. For this reason,
The hole 3a has a diameter of 3 mm and a tolerance of 0 to +0.01.
The elliptical hole 3b has a major axis of 4.2 mm and a tolerance of 0 to +
Up to 0.2, with a minor diameter of 3 mm and a tolerance of 0 to +0.07
It is a tight tolerance. In addition, these REFER
Disk cars that make up ENCE HOLE 3a, 3b
The main body 1 side of the cartridge is a through hole, and the lid 2 side is not penetrated.
Hole.
【0003】[0003]
【考案が解決しようとする課題】従来プラスチックの成
形で、本体1と蓋2とを組み合わせて一体のカートリッ
ジを構成する場合の孔の構造を図4(a),(b),
(c)に示す。例えば、図4(a)に示す様に、合わせ
目を5とした時、貫通孔側の孔径D1 と未貫通孔の孔径
D3 とは同一寸法である。この場合D1=D3である為、
金型加工精度、プラスチック成形時の誤差、組立時のバ
ラツキにより、D3−D1<0(D1−D3<0)となる欠
点がある。FIGS. 4 (a), 4 (b), and 4 (b) show the structure of a hole in the case where an integrated cartridge is formed by combining a main body 1 and a lid 2 with conventional plastic molding.
It is shown in (c). For example, as shown in FIG. 4A, when the seam is 5, the diameter D1 of the through hole and the diameter D3 of the non-through hole are the same. In this case, since D1 = D3,
There is a defect that D3−D1 <0 (D1−D3 <0) due to mold processing accuracy, errors during plastic molding, and variations during assembly.
【0004】また、図4(b)に示す様に、貫通孔側6
のボス8の外周9と未貫通孔側7のボス10の内周11
とがはめ合う構造の場合、貫通孔側6又は未貫通孔側7
のどちらかのボス8,10の先端は、ディスクカートリ
ッジの合わせ目12より突出する事になる。プラスチッ
ク成形の金型で、合わせ目12より突出する事は金型の
加工が複雑になる欠点がある。[0004] Further, as shown in FIG.
Of the boss 8 and the inner periphery 11 of the boss 10 on the non-through hole side 7
In the case of a structure that fits in, the through-hole side 6 or the non-through-hole side 7
The tip of either boss 8, 10 protrudes from the joint 12 of the disk cartridge. In a plastic molding die, protruding from the joint 12 has a drawback that the processing of the die becomes complicated.
【0005】さらに図4(c)に示す様に貫通孔側6に
ボス8を設け、未貫通孔側7にはボスを設けない例があ
る。この場合一般にボス8の長さは、金型の加工が複雑
になる為、厚さ方向の合わせ目12までである。この為
ディスクカートリッジ内部に寸法aの隙間が生じる欠点
がある。Further, as shown in FIG. 4C, there is an example in which a boss 8 is provided on the through-hole side 6 and no boss is provided on the non-through-hole side 7. In this case, the length of the boss 8 is generally up to the seam 12 in the thickness direction because the processing of the mold becomes complicated. Therefore, there is a disadvantage that a gap having a dimension a is generated inside the disk cartridge.
【0006】[0006]
【課題を解決するための手段】そのため本考案では、内
部に突出させたボスに位置基準孔を設けた本体と、該本
体の位置基準孔と対向配置して突出するボスに凹部を設
けた蓋とを有し、前記本体と前記蓋とを嵌合して構成す
るディスクカートリッジにおいて、前記本体と前記蓋そ
れそれから突出するボスの先端面は前記本体と前記蓋と
の嵌合時に当接もしくは微少間隙を有して対向し、前記
凹部の孔径は前記位置基準孔の孔径より大きく、前記凹
部の孔径は前記位置基準孔を有するボスの外径より小さ
いことを特徴とするものである。According to the present invention, there is provided a body having a position reference hole formed in a boss protruding therein, and a lid having a recess formed in a boss protruding opposite to the position reference hole of the body. Wherein the tip surface of the boss projecting from the main body and the lid and the boss protruding from the main body and the lid are abutted or minute when the main body and the lid are fitted. The recess has a hole diameter larger than the position reference hole, and the hole diameter of the recess is smaller than the outer diameter of the boss having the position reference hole .
【0007】[0007]
【作用】したがって、ディスクカートリッジの本体と蓋
との嵌合時に発生するREFERENCE HOLEの
寸法のバラツキを防ぐことができる。Therefore, it is possible to prevent variations in the dimensions of the REFERENCE HOLE that occur when the main body of the disk cartridge and the lid are fitted.
【0008】[0008]
【実施例】本考案の実施例を図面に従って説明する。図
1は本考案の一実施例で、図2に示すディスクカートリ
ッジのREFERENCE HOLE3a,3bの断面
を示したものである。本体1(貫通孔側)は、REFE
RENCE HOLE3a,3bの孔径D1を構成する
為のボス8がある。蓋2(未貫通孔側)は孔径D2を構
成する為のボス10を設ける。そして孔径D2は孔径D1
に対して本体1と蓋2を嵌合させたとき、バラツキで発
生する集積誤差を吸収できる程度に大きな孔径になって
いる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows an embodiment of the present invention, and shows a cross section of REFERENCE HOLE 3a, 3b of the disk cartridge shown in FIG. Body 1 (through hole side) is REFE
There is a boss 8 for defining the hole diameter D1 of the RENCE HOLES 3a, 3b. The cover 2 (on the non-through hole side) is provided with a boss 10 for defining the hole diameter D2. And the hole diameter D2 is the hole diameter D1
When the main body 1 and the lid 2 are fitted to each other, the hole diameter is large enough to absorb the accumulation error generated due to the variation.
【0009】また、ボス8の突出した先端面4と、ボス
10の突出した先端面13は、本体1と蓋2とを嵌合さ
せた時、合わせ目12に隙間が出来ない程度に接するよ
うに形成している。そのため、本体1と蓋2の嵌合によ
って構成されるREFERENCE HOLEは、嵌合
時のバラツキによる孔径のバラツキを防ぐことができ
る。そして、ボス8やボス10の先端面4,13までの
高さは、本体1や蓋2の厚み方向で他の部分より突出す
ることなく、嵌合したときの外周面に形成される合わせ
目12までの高さと等しくなっている。The protruding front end face 4 of the boss 8 and the protruding front end face 13 of the boss 10 are in contact with each other so that no gap is formed in the joint 12 when the main body 1 and the lid 2 are fitted. Is formed. Therefore, the REFERENCE HOLE constituted by the fitting of the main body 1 and the lid 2 can prevent variation in the hole diameter due to variation at the time of fitting. The heights of the bosses 8 and the bosses 10 to the tip end surfaces 4 and 13 do not protrude from other portions in the thickness direction of the main body 1 or the lid 2, and the joints formed on the outer peripheral surface when fitted are formed. It is equal to the height up to 12.
【0010】また他の実施例として図3の断面図に示す
ように、ボス8の先端面4と、ボス10の先端面13と
は本体1と蓋2とを嵌合させたときに、加工精度や組立
上の誤差を補う為に、微少の間隙を有して対向配置させ
てもよい。この場合でも先端面4,13までの高さは、
本体1や蓋2の厚み方向で他の部分より突出することは
ない。As another embodiment, as shown in the cross-sectional view of FIG. 3, the tip surface 4 of the boss 8 and the tip surface 13 of the boss 10 are processed when the main body 1 and the lid 2 are fitted. In order to compensate for errors in accuracy and assembly, they may be opposed to each other with a small gap. Even in this case, the height up to the tip surfaces 4 and 13 is
It does not protrude from other parts in the thickness direction of the main body 1 or the lid 2.
【0011】[0011]
【考案の効果】以上本考案によれば、小型ディスクカー
トリッジの金型加工を簡略にする事が出来る。また、組
立を容易にして不良の低減が出来る。[Effects of the Invention] According to the present invention, it is possible to simplify the die machining of a small disk cartridge. In addition, assembly can be facilitated and defects can be reduced.
【図1】本考案の一実施例を示す小型ディスクカートリ
ッジのREFERENCE HOLEの断面図。FIG. 1 is a sectional view of a REFERENCE HOLE of a small disk cartridge showing an embodiment of the present invention.
【図2】小型ディスクカートリッジの斜視図。FIG. 2 is a perspective view of a small disk cartridge.
【図3】本考案の他の実施例を示すREFERENCE
HOLEの断面図。FIG. 3 is a REFERENCE showing another embodiment of the present invention.
Sectional drawing of HOLE.
【図4】(a),(b),(c)は従来のREFERENCE
HOLEの構成を示す断面図。FIG. 4 (a), (b) and (c) show conventional REFERENCE.
Sectional drawing which shows the structure of HOLE.
1 本体 2 蓋 3a,3b REFERENCE HOLE 4,13 先端面 5,12 合わせ目 6 貫通孔 7 未貫通孔 8,10 ボス 9 ボスの外周 11 ボスの内周 DESCRIPTION OF SYMBOLS 1 Main body 2 Lid 3a, 3b REFERENCE HOLE 4,13 Tip surface 5,12 Seam 6 Through hole 7 Non-through hole 8,10 Boss 9 Outer periphery of boss 11 Inner periphery of boss
Claims (2)
けた本体と、 該本体の位置基準孔と対向配置して突出するボスに凹部
を設けた蓋とを有し、 前記本体と前記蓋とを嵌合して構成するディスクカート
リッジにおいて、 前記本体と前記蓋それそれから突出するボスの先端面は
前記本体と前記蓋との嵌合時に当接し、前記凹部の孔径
は前記位置基準孔の孔径より大きく、前記凹部の孔径は
前記位置基準孔を有するボスの外径より小さいことを特
徴とするディスクカートリッジ。A main body having a position reference hole formed in a boss protruding therein; and a lid having a concave portion provided in a boss protruding in a position opposed to the position reference hole of the main body. In a disc cartridge configured by fitting a lid, the tip surface of the main body and the lid and a boss protruding from the lid abut when the main body and the lid are fitted, and the hole diameter of the concave portion is smaller than that of the position reference hole . A disc cartridge characterized by being larger than a hole diameter and a hole diameter of the concave portion being smaller than an outer diameter of a boss having the position reference hole .
けた本体と、 該本体の位置基準孔と対向配置して突出するボスに凹部
を設けた蓋とを有し、 前記本体と前記蓋とを嵌合して構成するディスクカート
リッジにおいて、 前記本体と前記蓋それそれから突出するボスの先端面は
前記本体と前記蓋との嵌合時に微少間隙を有して対向
し、前記凹部の孔径は前記位置基準孔の孔径より大き
く、前記凹部の孔径は前記位置基準孔を有するボスの外
径より小さいことを特徴とするディスクカートリッジ。2. A main body having a position reference hole formed in a boss protruding therein, and a lid having a concave portion formed in a boss protruding opposite to the position reference hole of the main body. In the disk cartridge configured by fitting the lid, the tip surface of the main body, the lid, and the boss projecting from the lid face each other with a minute gap when the main body and the lid are fitted, and the hole diameter of the concave portion is formed. Is larger than the hole diameter of the position reference hole, and the hole diameter of the concave portion is outside the boss having the position reference hole.
A disk cartridge having a smaller diameter .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1063492U JP2581872Y2 (en) | 1992-02-03 | 1992-02-03 | Disk cartridge |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1063492U JP2581872Y2 (en) | 1992-02-03 | 1992-02-03 | Disk cartridge |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0567961U JPH0567961U (en) | 1993-09-10 |
JP2581872Y2 true JP2581872Y2 (en) | 1998-09-24 |
Family
ID=11755648
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1063492U Expired - Fee Related JP2581872Y2 (en) | 1992-02-03 | 1992-02-03 | Disk cartridge |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2581872Y2 (en) |
-
1992
- 1992-02-03 JP JP1063492U patent/JP2581872Y2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0567961U (en) | 1993-09-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19980602 |
|
LAPS | Cancellation because of no payment of annual fees |