JPS5534359A - Self travelling type record player - Google Patents
Self travelling type record playerInfo
- Publication number
- JPS5534359A JPS5534359A JP10732978A JP10732978A JPS5534359A JP S5534359 A JPS5534359 A JP S5534359A JP 10732978 A JP10732978 A JP 10732978A JP 10732978 A JP10732978 A JP 10732978A JP S5534359 A JPS5534359 A JP S5534359A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- car body
- disc
- magnet
- motor
- 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
Abstract
PURPOSE: To apply servo to the motor and control the speed with high performance by providing the travelling member with the magnetic flux detecting means such as magnet and coil and the signal obtained by disposing a plurality of slits radially on the magnetic plate.
CONSTITUTION: While the car body 2 travels on the record disc 1 and gradually moves inward, the magnetic flux of the magnet 8 reaches the mgnetic disc 27 through the record disc 1. The magnet 8 passes the respective slits 29 of the disc 27 and the upper portion between the respective slits alternatingly, so that the magnetic resistance in the magnetic circuit changes alternatively. Accordingly, there is obtained a signal having frequency proportional to the speed of the car body 2 from the coil 24. This signal is added to the speed control circuit of the motor and the speed of the motor 4 is controlled. Therefore, the reproducing needle 26 constantly traces the speed of the car body 2 at a predetermined angular speed. The speed of the car body is controlled.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10732978A JPS5534359A (en) | 1978-09-01 | 1978-09-01 | Self travelling type record player |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10732978A JPS5534359A (en) | 1978-09-01 | 1978-09-01 | Self travelling type record player |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5534359A true JPS5534359A (en) | 1980-03-10 |
Family
ID=14456285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10732978A Pending JPS5534359A (en) | 1978-09-01 | 1978-09-01 | Self travelling type record player |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5534359A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61110898A (en) * | 1984-11-05 | 1986-05-29 | Yayoi Eng:Kk | Washing device of heat exchanger |
| JPS6237699A (en) * | 1985-08-12 | 1987-02-18 | Kawasaki Steel Corp | Washing of plate type heat exchanger |
| JPH0492187U (en) * | 1990-12-20 | 1992-08-11 | ||
| JPH0579793A (en) * | 1991-09-20 | 1993-03-30 | Reitou Gijutsu Kogyosho:Kk | Cleaning device for heat exchanger |
| JPH0640689U (en) * | 1993-08-13 | 1994-05-31 | 株式会社弥生エンヂニアリング | Cleaning device for heat exchanger |
| US10304479B2 (en) * | 2017-07-24 | 2019-05-28 | Logan Riley | System, device, and method for wireless audio transmission |
| US10553246B2 (en) | 2017-07-24 | 2020-02-04 | Logan Riley | Systems and methods for reading phonographic record data |
-
1978
- 1978-09-01 JP JP10732978A patent/JPS5534359A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61110898A (en) * | 1984-11-05 | 1986-05-29 | Yayoi Eng:Kk | Washing device of heat exchanger |
| JPS6237699A (en) * | 1985-08-12 | 1987-02-18 | Kawasaki Steel Corp | Washing of plate type heat exchanger |
| JPH0492187U (en) * | 1990-12-20 | 1992-08-11 | ||
| JPH0579793A (en) * | 1991-09-20 | 1993-03-30 | Reitou Gijutsu Kogyosho:Kk | Cleaning device for heat exchanger |
| JPH0640689U (en) * | 1993-08-13 | 1994-05-31 | 株式会社弥生エンヂニアリング | Cleaning device for heat exchanger |
| US10304479B2 (en) * | 2017-07-24 | 2019-05-28 | Logan Riley | System, device, and method for wireless audio transmission |
| US10553246B2 (en) | 2017-07-24 | 2020-02-04 | Logan Riley | Systems and methods for reading phonographic record data |
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