JPH0376226U - - Google Patents
Info
- Publication number
- JPH0376226U JPH0376226U JP13474489U JP13474489U JPH0376226U JP H0376226 U JPH0376226 U JP H0376226U JP 13474489 U JP13474489 U JP 13474489U JP 13474489 U JP13474489 U JP 13474489U JP H0376226 U JPH0376226 U JP H0376226U
- Authority
- JP
- Japan
- Prior art keywords
- demagnetizing
- cassette
- power supply
- supply circuit
- coil
- 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
- 230000005347 demagnetization Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 1
Landscapes
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Description
図面は本考案による脱磁用カセツトの１実施例
を示し、第１図は脱磁用カセツトが装着さた磁気
記録再生装置の概略平面図、第２図及び第３図は
回転リール台と固定リール台との関係を示す分解
斜視図及び切断正面図、第４図ａ及びｂは脱磁用
コイルの切断正面図及び切断側面図、第５図は固
定リール台の平面図、第６図は電極の斜視図、第
７図は接続ピンの側面図、第８図は交流脱磁の原
理を説明するための磁化曲線の特性図、第９図は
交流脱磁回路の出力電流の波形図である。
１……磁気記録再生装置、２……シリンダ、３
……ポスト、４……キヤプスタン軸、６……脱磁
用カセツト、７……カセツトケース、９……脱磁
用コイル、１０……電源回路、１１……交流脱磁
回路。
The drawings show one embodiment of the demagnetizing cassette according to the present invention, FIG. 1 is a schematic plan view of a magnetic recording and reproducing apparatus in which the demagnetizing cassette is installed, and FIGS. An exploded perspective view and a cutaway front view showing the relationship with the reel stand, FIGS. 4a and 4b are a cutaway front view and a cutaway side view of the demagnetizing coil, FIG. 5 is a plan view of the fixed reel stand, and FIG. Figure 7 is a perspective view of the electrode, Figure 7 is a side view of the connecting pin, Figure 8 is a characteristic diagram of the magnetization curve to explain the principle of AC demagnetization, and Figure 9 is a waveform diagram of the output current of the AC demagnetization circuit. be. 1...Magnetic recording/reproducing device, 2...Cylinder, 3
... Post, 4 ... Capstan shaft, 6 ... Demagnetizing cassette, 7 ... Cassette case, 9 ... Demagnetizing coil, 10 ... Power supply circuit, 11 ... AC demagnetizing circuit.
Claims (1)
着される脱磁用カセツトであつて、 カセツトケースに、テープローデイング時に引
出されてシリンダ及びポスト等に対接するテープ
状の脱磁用コイルと、電源回路と、該電源回路に
より駆動され前記コイルに交流電流を供給する交
流脱磁回路とを内蔵してなる脱磁用カセツト。[Scope of Claim for Utility Model Registration] A demagnetizing cassette installed in a helical scan type magnetic recording/reproducing device, the cassette case having a tape-shaped demagnetizer that is pulled out during tape loading and comes into contact with a cylinder, a post, etc. A demagnetizing cassette comprising a magnetizing coil, a power supply circuit, and an AC demagnetizing circuit driven by the power supply circuit and supplying alternating current to the coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13474489U JPH0376226U (en) | 1989-11-20 | 1989-11-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13474489U JPH0376226U (en) | 1989-11-20 | 1989-11-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0376226U true JPH0376226U (en) | 1991-07-31 |
Family
ID=31682061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13474489U Pending JPH0376226U (en) | 1989-11-20 | 1989-11-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0376226U (en) |
-
1989
- 1989-11-20 JP JP13474489U patent/JPH0376226U/ja active Pending
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