JPS61199721U - - Google Patents
Info
- Publication number
- JPS61199721U JPS61199721U JP8353385U JP8353385U JPS61199721U JP S61199721 U JPS61199721 U JP S61199721U JP 8353385 U JP8353385 U JP 8353385U JP 8353385 U JP8353385 U JP 8353385U JP S61199721 U JPS61199721 U JP S61199721U
- Authority
- JP
- Japan
- Prior art keywords
- rotating
- magnetic
- magnetic tape
- electromagnet
- fixed drum
- 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
- 230000005291 magnetic effect Effects 0.000 claims description 20
- 239000003302 ferromagnetic material Substances 0.000 claims description 4
- 239000000696 magnetic material Substances 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 1
Description
第１図〜第３図はこの考案の回転ヘツド形磁気
記録再生装置の実施例を示すもので、第１図はそ
の概略側面図、第２図は回転する磁気ヘツドおよ
び永久磁石または強磁性体と電磁石と磁気テープ
との関係を示す図、第３図は電磁石およびその励
磁回路と回転する永久磁石または強磁性体との関
係を示す図、第４図は従来の回転ヘツド形磁気記
録再生装置における磁気ヘツドと走行する磁気テ
ープとの位置関係を示す概略側面図、第５図は第
４図における磁気テープの早送または巻戻し時に
磁気テープを磁気ヘツドから離す機構を示す平面
図である。
１……磁気テープ、２……固定ドラム、３……
回転ドラム、４……回転軸、５……モータ、７ａ
，７ｂ……磁気ヘツド、８……アーム、８ａ……
長孔、８ｂ……ピン、９……ローデイングポール
、１０……カム、１０ａ……支軸、１０ｂ……カ
ム溝、１１……ホルダー、１２……永久磁石また
は強磁性体、１３……電磁石、１４……アーム、
１５……励磁回路、１６……電源スイツチ。
1 to 3 show an embodiment of the rotating head type magnetic recording/reproducing device of this invention, FIG. 1 is a schematic side view thereof, and FIG. 2 is a rotating magnetic head and a permanent magnet or ferromagnetic material. Figure 3 is a diagram showing the relationship between an electromagnet and an electromagnet and a magnetic tape, Figure 3 is a diagram showing the relationship between an electromagnet, its excitation circuit, and a rotating permanent magnet or ferromagnetic body, and Figure 4 is a conventional rotating head type magnetic recording/reproducing device. 5 is a schematic side view showing the positional relationship between the magnetic head and the running magnetic tape, and FIG. 5 is a plan view showing a mechanism for separating the magnetic tape from the magnetic head during fast forwarding or rewinding of the magnetic tape in FIG. 4. 1...Magnetic tape, 2...Fixed drum, 3...
Rotating drum, 4... Rotating shaft, 5... Motor, 7a
, 7b...magnetic head, 8... arm, 8a...
Elongated hole, 8b...Pin, 9...Loading pole, 10...Cam, 10a...Spindle, 10b...Cam groove, 11...Holder, 12...Permanent magnet or ferromagnetic material, 13... Electromagnet, 14...arm,
15...excitation circuit, 16...power switch.
Claims (1)
ドラムと、この固定ドラムに対し所定間隙を置い
て配設され周面部に少なくとも１個の磁気ヘツド
を取付けたモータによつて回転する回転体とを備
え、この回転体と共に回転する磁気ヘツドによつ
て前記固定ドラムに摺接して走行する磁気テープ
に対して記録・再生を行なう回転ヘツド形磁気記
録再生装置において、前記回転体と一体に回転す
る少なくとも１個の永久磁石または強磁性体と、
この永久磁石または強磁性体に所定の間隙をもつ
て対向してこれを吸引し得る電磁石と、磁気テー
プの早送または巻戻しの際の高速走行時に前記電
磁石を作動させる手段とよりなり、この電磁石の
配設位置は、モータへの通電停止により前記回転
体が惰走回転し、この回転体に取付けた磁気ヘツ
ドが、前記磁気テープに接触しない位置に停止さ
れるよう前記永久磁石または強磁性体を吸引し停
止させる位置としたことを特徴とする回転ヘツド
形磁気記録再生装置。 A fixed drum on which a magnetic tape is wound and slid at a predetermined angle, and a rotary body that is rotated by a motor that is arranged at a predetermined distance from the fixed drum and has at least one magnetic head attached to its peripheral surface. In a rotating head type magnetic recording/reproducing device, the magnetic head rotating together with the rotating body performs recording/playback on a magnetic tape running in sliding contact with the fixed drum. at least one permanent magnet or ferromagnetic material,
It consists of an electromagnet that faces this permanent magnet or ferromagnetic material with a predetermined gap and can attract it, and a means for activating the electromagnet when the magnetic tape is running at high speed during fast forwarding or rewinding. The position of the electromagnet is such that when the motor is de-energized, the rotating body coasts and the magnetic head attached to the rotating body is stopped at a position where it does not come into contact with the magnetic tape. A rotating head type magnetic recording and reproducing device characterized by having a position where the body is attracted and stopped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8353385U JPS61199721U (en) | 1985-06-03 | 1985-06-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8353385U JPS61199721U (en) | 1985-06-03 | 1985-06-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61199721U true JPS61199721U (en) | 1986-12-13 |
Family
ID=30632248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8353385U Pending JPS61199721U (en) | 1985-06-03 | 1985-06-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61199721U (en) |
-
1985
- 1985-06-03 JP JP8353385U patent/JPS61199721U/ja active Pending
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