JPS60140260U - Floppy disk drive index signal detection device - Google Patents
Floppy disk drive index signal detection deviceInfo
- Publication number
- JPS60140260U JPS60140260U JP16416683U JP16416683U JPS60140260U JP S60140260 U JPS60140260 U JP S60140260U JP 16416683 U JP16416683 U JP 16416683U JP 16416683 U JP16416683 U JP 16416683U JP S60140260 U JPS60140260 U JP S60140260U
- Authority
- JP
- Japan
- Prior art keywords
- floppy disk
- index signal
- detection device
- spindle motor
- signal detection
- 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
Landscapes
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
- Rotational Drive Of Disk (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案に係るインデックス信号検出装置の好適
な実施例を示す要部平面図、第２図は第 １図の■−
■断面図、第３図Ａ、 Ｂは本実施例における光センサ
のインデックス信号検出作用を示す説明図、第４図は従
来め検出特性図、第５図は本考案に係る検出特性図であ
る。
１０・・・ドライブ基板、１２・・・スピンドルモータ
軸、１６−・・フロッピディスクカートリッジ、１８・
・・ロータヨーク、２２・・・ステータヨーク、２６・
・・インデックスマーク、２８・・・光センサ−３０・
・・回路基板。FIG. 1 is a plan view of main parts showing a preferred embodiment of the index signal detection device according to the present invention, and FIG.
■Cross-sectional view, Figures 3A and 3B are explanatory diagrams showing the index signal detection action of the optical sensor in this embodiment, Figure 4 is a conventional detection characteristic diagram, and Figure 5 is a detection characteristic diagram according to the present invention. . DESCRIPTION OF SYMBOLS 10... Drive board, 12... Spindle motor shaft, 16-... Floppy disk cartridge, 18...
...Rotor yoke, 22...Stator yoke, 26.
... Index mark, 28... Optical sensor -30.
...Circuit board.
Claims (2)
転駆動し前記フロッピディスクドライブの１回転中の所
定位置をスピンドルモータからインデックス信号として
検出する検出装置において、スピンドルモータの回転面
に山型形状のイ、 ンデツ、クスマークを設けると
ともに前記スピンドルモータ回転面と近接したドライブ
側に光センサを設け、インデックスマーク山型の反射面
によってインデックスマークを高精度で検出することを
特徴とするフロッピディスク、ドライブのインデックス
信号検出装置。(1) In a detection device that rotationally drives a floppy disk by a spindle motor and detects a predetermined position during one rotation of the floppy disk drive as an index signal from the spindle motor, a chevron-shaped indentation is formed on the rotating surface of the spindle motor. An index signal detection device for a floppy disk or drive, characterized in that a cross mark is provided and an optical sensor is provided on the drive side close to the rotating surface of the spindle motor, and the index mark is detected with high precision by a reflective surface in the shape of an index mark mountain. .
５：一二−二＝Ａニシニ＝ はドライブに対してその固定位置が微調整可能であり、
インデックス信号の検出位相を回路基板の移動によって
微調整できることを特徴とするフロッピディスクドライ
ブのインデックス信号検出装置。(2) In the device according to claim (1), the fixing position of 5:12-2=Anishini= can be finely adjusted with respect to the drive,
An index signal detection device for a floppy disk drive, characterized in that the detection phase of the index signal can be finely adjusted by moving a circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16416683U JPS60140260U (en) | 1983-10-24 | 1983-10-24 | Floppy disk drive index signal detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16416683U JPS60140260U (en) | 1983-10-24 | 1983-10-24 | Floppy disk drive index signal detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60140260U true JPS60140260U (en) | 1985-09-17 |
Family
ID=30722030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16416683U Pending JPS60140260U (en) | 1983-10-24 | 1983-10-24 | Floppy disk drive index signal detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60140260U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007168948A (en) * | 2005-12-20 | 2007-07-05 | Kyocera Mita Corp | Paper residual amount detecting device and image forming device to which this device is applied |
-
1983
- 1983-10-24 JP JP16416683U patent/JPS60140260U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007168948A (en) * | 2005-12-20 | 2007-07-05 | Kyocera Mita Corp | Paper residual amount detecting device and image forming device to which this device is applied |
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