JPS5877005A - Cutting system for power supply of magnetic tape device - Google Patents
Cutting system for power supply of magnetic tape deviceInfo
- Publication number
- JPS5877005A JPS5877005A JP56174030A JP17403081A JPS5877005A JP S5877005 A JPS5877005 A JP S5877005A JP 56174030 A JP56174030 A JP 56174030A JP 17403081 A JP17403081 A JP 17403081A JP S5877005 A JPS5877005 A JP S5877005A
- Authority
- JP
- Japan
- Prior art keywords
- door
- power supply
- magnetic tape
- closed
- tape device
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
Abstract
Description
【発明の詳細な説明】
（１） 発明の技術分野
この発明は、電源の切断方式に係抄、特に磁気テープ装
置において扉が閉状態にあることを条件（２）発明の背
景
磁気テープ装置は、供給側に読取・書込用のリ一μを１
巻取側に空り−μを装着して奔速回転しなから、磁気テ
ープに対する情報の書込あるいは読取を行うものである
。かかるリール駆動部は当然のことながら磁気ヘッドを
有しているが、この磁気ヘッドは塵埃に対し“て非常に
敏感であり、大剣中に漂う微少な塵埃が磁気ヘッドの磁
気テープ接触面に付着しても、情報の読取・書込が誤動
作する。そのため駆動部を密封するための扉が設けられ
ており、この扉はり“−ｐの駆動部に対する装着時には
開放し、リール駆動部は閉鎖される。またリールの取説
時にも開放して取外し後に閉鎖する。Detailed Description of the Invention (1) Technical Field of the Invention The present invention is concerned with the method of turning off the power, particularly on the condition that the door of a magnetic tape device is in a closed state. (2) Background of the Invention The magnetic tape device is , 1 μ for reading and writing on the supply side.
This is to write or read information on a magnetic tape by attaching an air-μ to the winding side and rotating it at a rapid speed. Such a reel drive unit naturally has a magnetic head, but this magnetic head is extremely sensitive to dust, and minute dust floating around in the large sword can come into contact with the magnetic tape contact surface of the magnetic head. Even if it adheres, reading and writing information will malfunction.For this reason, a door is provided to seal the drive unit, and this door opens when the “-P” is attached to the drive unit, and the reel drive unit closes. be done. It is also opened when the reel is being operated and closed after removal.
邸）従来技術と問題点
このように、扉の開閉操作はり−μの装脱時に伴なうも
のであるため、装着時には自動的に解放し、リール回転
に先立って自動的に閉鎖し、書込・読取後はリール取外
しのため再度自動的に開放・閉鎖を行う磁気テープ装置
は提案されているが、磁気テープ装置への電源供給を停
止する際は扉の開閉状態は全く考慮されていなかった。Conventional technology and problems As described above, the door opening/closing beam is associated with loading and unloading the μ, so it automatically releases when installed, closes automatically before the reel rotates, and closes the door. A magnetic tape device has been proposed that automatically opens and closes again to remove the reel after loading and reading, but the open/closed state of the door is not considered at all when stopping power supply to the magnetic tape device. Ta.
したがって、扉が開放している間圧電源断とされた場合
。Therefore, if the voltage source is cut off while the door is open.
電源断中、駆動部は外部からの塵埃の影響を受けること
となる。While the power is off, the drive unit is affected by dust from the outside.
（４）発明の目的
この発明はかかる従来の不都合を除去するものであり、
電源切断に際しては扉が閉状態にあることを条件とし、
もって電源供給停止中は常に扉を開状態とし、外部の塵
埃の影響を受けない磁気テープ装置を提供するものであ
る。(4) Purpose of the invention This invention eliminates such conventional disadvantages,
When turning off the power, the door must be closed.
This provides a magnetic tape device whose door is always open while the power supply is stopped, and which is not affected by external dust.
（５）発明の構成
この目的のため本発明は扉の開閉状態を識別する状態識
別部を有し、磁気テープ装置の電源部に対する電源切断
命令により前記扉の状態を識別し。(5) Structure of the Invention For this purpose, the present invention has a state identification unit that identifies the open/closed state of the door, and identifies the state of the door by a power cut command to the power supply unit of the magnetic tape device.
扉が開状態におるときは閉状態にされたことを識別して
前記電源を切断することを特徴とするものである、
（６）発明の実施例
図は本発明による電源の切断方式の一実施例を示すフロ
ーチャートである。When the door is in the open state, the power source is cut off by identifying that the door is in the closed state. It is a flow chart showing an example.
与えられる、電Ｊｌｌ’ｒ指令ψ丈１有′の場合は磁気
れは例えば扉を光学的に検出するホトセンサにより扉が
閉状態あることを検出し、該ホトセンサによって扉が検
出された場合は閉状態とし、それ以外を開状態とする。If the electric Jll'r command ψ length 1 is given, the magnetic field will detect that the door is closed, for example, using a photo sensor that optically detects the door, and if the door is detected by the photo sensor, it will be closed. state, and other states are set to open state.
扉が開状態にあると識別された場合は扉の閉操作指令を
出力する。扉の閉操作を手動にて行わせる場合にはラン
プ表示、コンソールディスプレイにメツセージを出力し
、閉操作にオペレータを介在させたい場合は扉駆動部を
駆動して自動的に行う。If the door is identified as being open, a door closing command is output. When the door is to be closed manually, a message is output to the lamp display and the console display, and when the operator needs to be involved in the closing operation, the door drive section is driven to automatically close the door.
扉が閉状態にされると、あるいは閉状態にあるときには
電源を切断しても扉が閉状態を維持するように閉状態で
扉をロックする。これは電磁石機構等圧より機械的に係
止する。ロック作業が終了すると、初めて磁気テープ装
置に対する電源の供給が停止される。When the door is in the closed state, or when the door is in the closed state, the door is locked in the closed state so that the door remains in the closed state even if the power is cut off. This is mechanically locked using an electromagnetic mechanism. When the locking operation is completed, power supply to the magnetic tape device is stopped for the first time.
（７）発明の効果
このように、本発明によれば電源切断指令に際して、扉
が開状態にある場合性閉状態にされたことを識別して初
第て電源を切断したものであるから、電源切断中は必ず
扉が閉状態にあり、磁気ヘッド等が外部の塵埃に対して
悪影響をｉけることがないう(7) Effects of the Invention As described above, according to the present invention, when receiving a power cut command, if the door is in the open state, it is recognized that the door is in the closed state and the power is cut off first. The door is always closed while the power is turned off, so that the magnetic head etc. will not be adversely affected by external dust.
図は本発明による電源切断方式の一実施例を示すフロー
チャートである、The figure is a flowchart showing an embodiment of the power cutoff method according to the present invention.
Claims (1)
磁気テープ装置において、前記扉の開閉状態を識別する
状態識別部を有し、磁気テープ装々 置の電源部に対する電源切断命冷により前記扉の状態を
識別し、扉が開状態にあるときは閉状轢にされたことを
識別して前記電源を切断することを特徴とする電源の切
断方式。[Claims] Magnetically easy to open and close the door! The magnetic tape device has a state identification unit that identifies the open/closed state of the door, and identifies the state of the door by turning off the power to the power supply unit of the magnetic tape device, and detects the state of the door. A power supply cutoff method characterized in that when the power supply is in an open state, the power supply is cut off by identifying that the road is in a closed state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56174030A JPS5877005A (en) | 1981-10-29 | 1981-10-29 | Cutting system for power supply of magnetic tape device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56174030A JPS5877005A (en) | 1981-10-29 | 1981-10-29 | Cutting system for power supply of magnetic tape device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5877005A true JPS5877005A (en) | 1983-05-10 |
| JPH0312379B2 JPH0312379B2 (en) | 1991-02-20 |
Family
ID=15971400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56174030A Granted JPS5877005A (en) | 1981-10-29 | 1981-10-29 | Cutting system for power supply of magnetic tape device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5877005A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6344391A (en) * | 1986-08-12 | 1988-02-25 | Pioneer Electronic Corp | Power source switch device for acoustic equipment |
-
1981
- 1981-10-29 JP JP56174030A patent/JPS5877005A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6344391A (en) * | 1986-08-12 | 1988-02-25 | Pioneer Electronic Corp | Power source switch device for acoustic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0312379B2 (en) | 1991-02-20 |
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