JPH0332778U - - Google Patents
Info
- Publication number
- JPH0332778U JPH0332778U JP9251689U JP9251689U JPH0332778U JP H0332778 U JPH0332778 U JP H0332778U JP 9251689 U JP9251689 U JP 9251689U JP 9251689 U JP9251689 U JP 9251689U JP H0332778 U JPH0332778 U JP H0332778U
- Authority
- JP
- Japan
- Prior art keywords
- case
- liner sheet
- disk cartridge
- lifter
- magnetic disk
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000002093 peripheral effect Effects 0.000 claims 3
- 230000037303 wrinkles Effects 0.000 claims 1
- 238000005452 bending Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Description
第１図は本考案の実施例の平面図、第２図は分
離状態の斜面図、第３図Ａ，Ｂは上ケース及び下
ケースの内部を示す平面図、第４図は第１図にお
ける−線の拡大断面図、第５図は第３図Ａ，
Ｂの変形例を示す平面図、第６図は従来例の下ケ
ースの平面図である。
１……デイスク、２……ケース、３……リフタ
ー、３１……ボス、４……ライナーシート、５…
…たわみ部、６，６１……溶着部、７……シヤツ
タ、８……センターコア。
Fig. 1 is a plan view of the embodiment of the present invention, Fig. 2 is a perspective view of the separated state, Fig. 3 A and B are plan views showing the inside of the upper case and lower case, and Fig. 4 is the same as Fig. 1. - An enlarged sectional view of the line, Figure 5 is Figure 3A,
FIG. 6 is a plan view showing a modified example of B, and FIG. 6 is a plan view of the lower case of the conventional example. 1... Disk, 2... Case, 3... Lifter, 3 1 ... Boss, 4... Liner sheet, 5...
...Bending part, 6,6 1 ...Welding part, 7...Shutter, 8...Center core.
Claims (1)
内面に弾力性を付与したリフター３を設け、該リ
フター３でライナーシート４を前記デイスク１の
面上に接触するようにケース内面に貼着配備した
デイスクカートリツジにおいて、前記ライナーシ
ート４の少なくとも前記リフター３に対応する周
辺区域にしわ立ちを生じうるたわみ部５を一対の
溶着部６，６で形成して備えたことを特徴とする
磁気デイスクカートリツジ。 ２ 前記溶着部６が同心円的中心部透孔形のライ
ナーシート４の外周縁部と内周縁部とに所定間隔
をおいて設けた点溶着部である請求項１記載の磁
気デイスクカートリツジ。 ３ 前記ケース２が上ケースと下ケースとから成
り、ライナーシート４の溶着部６１で形成される
タツキングパターンを異なつたパターンに形成し
た請求項１又は２記載の磁気デイスクカートリツ
ジ。[Claims for Utility Model Registration] 1. A lifter 3 having elasticity is provided on the inner surface of a case 2 that rotatably houses the disk 1, and the lifter 3 is used to bring the liner sheet 4 into contact with the surface of the disk 1. In the disk cartridge attached to the inner surface of the case, a flexible portion 5 that can cause wrinkles at least in the peripheral area corresponding to the lifter 3 of the liner sheet 4 is formed by a pair of welded portions 6, 6. A magnetic disk cartridge characterized by: 2. The magnetic disk cartridge according to claim 1, wherein the welded portion 6 is a point welded portion provided at a predetermined interval between an outer peripheral edge and an inner peripheral edge of the liner sheet 4 having a concentric central hole. 3. A magnetic disk cartridge according to claim 1 or 2, wherein said case 2 comprises an upper case and a lower case, and the tacking patterns formed by the welded portions 61 of the liner sheet 4 are formed in different patterns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9251689U JPH0332778U (en) | 1989-08-08 | 1989-08-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9251689U JPH0332778U (en) | 1989-08-08 | 1989-08-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0332778U true JPH0332778U (en) | 1991-03-29 |
Family
ID=31641938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9251689U Pending JPH0332778U (en) | 1989-08-08 | 1989-08-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0332778U (en) |
-
1989
- 1989-08-08 JP JP9251689U patent/JPH0332778U/ja active Pending