JPH035952A - System for controlling both 5.25" and 8" floppy disks - Google Patents

System for controlling both 5.25" and 8" floppy disks

Info

Publication number
JPH035952A
JPH035952A JP1140344A JP14034489A JPH035952A JP H035952 A JPH035952 A JP H035952A JP 1140344 A JP1140344 A JP 1140344A JP 14034489 A JP14034489 A JP 14034489A JP H035952 A JPH035952 A JP H035952A
Authority
JP
Japan
Prior art keywords
floppy disk
floppy
spindle hub
moved
head
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
Application number
JP1140344A
Other languages
Japanese (ja)
Inventor
Shuichi Moriyama
森山 秀一
Tokuaki Kanbayashi
神林 徳昭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Niigata Fuji Xerox Manufacturing Co Ltd
Original Assignee
NEC Corp
Niigata Fuji Xerox Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp, Niigata Fuji Xerox Manufacturing Co Ltd filed Critical NEC Corp
Priority to JP1140344A priority Critical patent/JPH035952A/en
Publication of JPH035952A publication Critical patent/JPH035952A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To access both a 5.25'' floppy disk and an 8'' floppy disk by one floppy disk device by switching the moving amount of a head according to the size of the floppy disk. CONSTITUTION:A spindle hub 1 is provided to clamp both 5.25'' and 8'' floppy disks 2 and 3 and the switching mechanism of the head moving amount is provided. When the floppy disk 2 is used, the spindle hub 1 is moved to an A position and when the floppy disk 3 is used, the spindle hub 1 is moved to a B position. On the other hand, for the switching mechanism of the head moving amount, when the floppy disks 2 and 3 are the same type of recording capacity, the track density of the 5.25'' floppy disk 2 is 96tpi (track pitch inch) and the track density of the 8'' floppy disk 3 is 48tpi. Accordingly, when the 8'' floppy disk 3 is accessed, the head is moved for two tracks in the case of the 5.25'' floppy disk 2. Thus, even the track on the 8'' floppy disk exactly is positioned and accessed.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 と8″フロツピイデイスク装置は、使用可能なフロッピ
ィディスクの大きさが決まっているので、1 ″ 5− フロッピィディスクは8″フロッピィデイビイデ
ィスク装置で使用できないという欠点がある。
[Detailed Description of the Invention] [Industrial Application Field] Since the size of usable floppy disks is fixed for 8" floppy disk devices, 1" 5-floppy disks are 8" floppy disks. The disadvantage is that it cannot be used with disk devices.

〔課題を解決するための手段〕[Means to solve the problem]

1″ 本発明の5−8”両用フロッピィディスク装置は、フロ
ッピィディスクを固定するスピンドル・ハブと、該スピ
ンドル・ハブを移動させる移動機構と、フロッピィディ
スクのサ移動させる移動量を切替える切替機構とを有し
ている。
1'' The 5-8'' dual-use floppy disk device of the present invention comprises a spindle hub for fixing a floppy disk, a moving mechanism for moving the spindle hub, and a switching mechanism for switching the amount of movement of the floppy disk. have.

〔実施例〕〔Example〕

次に本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.

第1図は本発明の一実施例を示す側面図であフロッピィ
ディスク2と8″フロツピイデイスク3の両方のタイ1
がクランプ可能である。フロフロッピィディスクの両方
をクランプするスピンドル・ハブ1とヘッド移動量を切
替える切替機構とを有している。このスピンドル・ハフ
1には1 ″ 5− フロッピィディスクを使用する時はAの位置、8
″フロツピイデイスクを使用する時はBの位置に移動す
る移動機構(図示せず)に取付けられている。一方、ヘ
ッド移動量を切替える切替機ィディスクは96 tpi
(track per 1nch) 、 8フロツピイ
デイスクは48 jpiのトラック密度であるので、8
″フロツピイデイスクをアクセスする場1“ 合は5− フロッピィディスクの場合の2トラッり分ヘ
ッドを移動させるようにしたものである。
FIG. 1 is a side view showing one embodiment of the present invention.
can be clamped. It has a spindle hub 1 that clamps both floppy disks and a switching mechanism that switches the amount of head movement. This spindle huff 1 has 1" 5- position A when using a floppy disk, 8
``When using a floppy disk, it is attached to a moving mechanism (not shown) that moves it to position B.On the other hand, the switching device that changes the amount of head movement is 96 tpi.
(track per 1nch), since an 8 floppy disk has a track density of 48 jpi,
When accessing a floppy disk (1), the head is moved by 2 tracks compared to the case of a 5-floppy disk.

これにより、本実施例は8″フロツピイデイスク上のト
ラックも正確に位置決めすることができ、アクセス可能
となる。
As a result, in this embodiment, even tracks on an 8'' floppy disk can be accurately positioned and accessed.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明は、フロッピィディスクをク
ランプするスピンドル・ハブを移動させることと、フロ
ッピィディスクのサイズによりヘッドの移動量を切替え
ることにより、1台のフりと8″フロツピイデイスクの
両方をアクセスできるという効果がある。
As explained above, the present invention has the advantage of moving the spindle hub that clamps the floppy disk and changing the amount of head movement depending on the size of the floppy disk. The effect is that you can access both.

【図面の簡単な説明】[Brief explanation of drawings]

弓 フロッピィディスク装置を示す側面図、第2図は第1図
の正面を示す図である。 1・・・スピンドル・ハブ、2・・・5 ″フロッピィ
ディスク、3・・・8″フロツピイデイスク、4・・・
フロッピィディスク装置。
FIG. 2 is a side view showing the bow floppy disk device, and FIG. 2 is a front view of FIG. 1...Spindle hub, 2...5'' floppy disk, 3...8'' floppy disk, 4...
Floppy disk device.

Claims (1)

【特許請求の範囲】[Claims] 5(1/4)″フロッピィディスクと8″フロッピィデ
ィスクの両方のフロッピィディスクをクランプするスピ
ンドル・ハブと、該スピンドル・ハブを移動させる移動
機構と、フロッピィディスクのサイズによるヘッド移動
量を切替える切替機構とを有し、1台のフロッピーディ
スク装置でアクセス可能にすることを特徴とする5(1
/4)″、8″両用フロッピィディスク制御方式。
A spindle hub that clamps both 5 (1/4)" and 8" floppy disks, a moving mechanism that moves the spindle hub, and a switching mechanism that switches the amount of head movement depending on the size of the floppy disk. 5 (1) characterized in that it has a
/4) Floppy disk control system for both `` and 8''.
JP1140344A 1989-06-01 1989-06-01 System for controlling both 5.25" and 8" floppy disks Pending JPH035952A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1140344A JPH035952A (en) 1989-06-01 1989-06-01 System for controlling both 5.25" and 8" floppy disks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1140344A JPH035952A (en) 1989-06-01 1989-06-01 System for controlling both 5.25" and 8" floppy disks

Publications (1)

Publication Number Publication Date
JPH035952A true JPH035952A (en) 1991-01-11

Family

ID=15266648

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1140344A Pending JPH035952A (en) 1989-06-01 1989-06-01 System for controlling both 5.25" and 8" floppy disks

Country Status (1)

Country Link
JP (1) JPH035952A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995025498A1 (en) * 1994-03-22 1995-09-28 Sanyo Electric Co., Ltd. Charta for folding drug thereinto
US5735183A (en) * 1995-01-31 1998-04-07 Hitachi Koki Co., Ltd. Power screwdriver and clutch mechanism used therein
JP2014092221A (en) * 2012-11-02 2014-05-19 Shin Nippon Wheel Industries Co Ltd Power transmission device and vehicle for farm work
US8944181B2 (en) 2007-10-02 2015-02-03 Hitachi Koki Co., Ltd. Power tool with a torque clutch

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995025498A1 (en) * 1994-03-22 1995-09-28 Sanyo Electric Co., Ltd. Charta for folding drug thereinto
US5735183A (en) * 1995-01-31 1998-04-07 Hitachi Koki Co., Ltd. Power screwdriver and clutch mechanism used therein
US8944181B2 (en) 2007-10-02 2015-02-03 Hitachi Koki Co., Ltd. Power tool with a torque clutch
JP2014092221A (en) * 2012-11-02 2014-05-19 Shin Nippon Wheel Industries Co Ltd Power transmission device and vehicle for farm work

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