JPS58125867U - Capstan shaft rotation detection device - Google Patents
Capstan shaft rotation detection deviceInfo
- Publication number
- JPS58125867U JPS58125867U JP2174082U JP2174082U JPS58125867U JP S58125867 U JPS58125867 U JP S58125867U JP 2174082 U JP2174082 U JP 2174082U JP 2174082 U JP2174082 U JP 2174082U JP S58125867 U JPS58125867 U JP S58125867U
- Authority
- JP
- Japan
- Prior art keywords
- capstan shaft
- tooth surface
- magnetic path
- rotation
- magnetic flux
- 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
- Transmission And Conversion Of Sensor Element Output (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図は従来のキャプスタン駆動装置の縦断面図、第２
図は本考案の一実施例による回転検出装置を備えるキャ
プスタン駆動装置の縦断面図である。
なお図面に用いられた符号において、１・・・・・・キ
ャプスタン軸、２・・・・・・フライホイル、１１・・
四周波数発電機、１４・・・・・・内歯部材、１５・・
・・・・外歯部材、１７・・・・・・検出コイル、１８
・・・・・・バイアスマグネット、１９・・・・・・ヨ
ークである。Figure 1 is a vertical cross-sectional view of a conventional capstan drive device;
FIG. 1 is a longitudinal sectional view of a capstan driving device equipped with a rotation detection device according to an embodiment of the present invention. In addition, in the symbols used in the drawings, 1... Capstan shaft, 2... Flywheel, 11...
Four-frequency generator, 14... Internal gear member, 15...
...External tooth member, 17...Detection coil, 18
...Bias magnet, 19...Yoke.
Claims (1)
ライホイル部材を回転駆動すると共に、上記フライホイ
ル部材に形成された凹所内に回転側の歯面と固定側の歯
面とを上記キャプスタン軸と直交する方向に近接対向さ
せて配置し、この歯面対向部分を閉ループ磁路の一部と
する磁束発生部を画定側に設け、この磁路と鎖交する固
定側のコイルでもって回転検出信号を得るようにしたキ
ャプスタン軸の回転検出装置において、上記閉ループ磁
路の一部を構成する円板状の磁路材が、上記フライホイ
ル部材の凹所の内周面に対して上記キャプスタン軸と直
交する方向に近接対向するように上記磁束発生部に設け
られ、磁束がこの近接対向部分を通過するようにしたこ
とを特徴とするキャプスタン軸の回転検出装置。The flywheel member of the capstan shaft is rotationally driven by the drive means via the power transmission means, and the tooth surface on the rotation side and the tooth surface on the stationary side are inserted into the recess formed in the flywheel member on the capstan shaft. A magnetic flux generating section is provided on the defining side, which is arranged close to and facing each other in a direction orthogonal to the tooth surface, and the part facing the tooth surface becomes part of a closed loop magnetic path, and rotation is detected by a coil on the stationary side that intersects with this magnetic path. In the capstan shaft rotation detecting device configured to obtain a signal, a disc-shaped magnetic path material constituting a part of the closed loop magnetic path is arranged so that the capstan shaft rotates against the inner circumferential surface of the recess of the flywheel member. A rotation detection device for a capstan shaft, characterized in that the capstan shaft rotation detecting device is provided in the magnetic flux generation section so as to closely face each other in a direction perpendicular to the stan shaft, and the magnetic flux passes through this closely opposed portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2174082U JPS58125867U (en) | 1982-02-18 | 1982-02-18 | Capstan shaft rotation detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2174082U JPS58125867U (en) | 1982-02-18 | 1982-02-18 | Capstan shaft rotation detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58125867U true JPS58125867U (en) | 1983-08-26 |
Family
ID=30033858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2174082U Pending JPS58125867U (en) | 1982-02-18 | 1982-02-18 | Capstan shaft rotation detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58125867U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5657955A (en) * | 1979-10-16 | 1981-05-20 | Matsushita Electric Ind Co Ltd | Revolution detector |
| JPS5657957A (en) * | 1979-10-16 | 1981-05-20 | Matsushita Electric Ind Co Ltd | Revolution detector |
-
1982
- 1982-02-18 JP JP2174082U patent/JPS58125867U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5657955A (en) * | 1979-10-16 | 1981-05-20 | Matsushita Electric Ind Co Ltd | Revolution detector |
| JPS5657957A (en) * | 1979-10-16 | 1981-05-20 | Matsushita Electric Ind Co Ltd | Revolution detector |
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