JPS5556449A - Video head motor - Google Patents

Video head motor

Info

Publication number
JPS5556449A
JPS5556449A JP12780378A JP12780378A JPS5556449A JP S5556449 A JPS5556449 A JP S5556449A JP 12780378 A JP12780378 A JP 12780378A JP 12780378 A JP12780378 A JP 12780378A JP S5556449 A JPS5556449 A JP S5556449A
Authority
JP
Japan
Prior art keywords
wheel
rotary shaft
head motor
video head
shaft
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
Application number
JP12780378A
Other languages
Japanese (ja)
Other versions
JPS6213724B2 (en
Inventor
Yukio Shinoda
Kan Tominaga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Denshi KK
Original Assignee
Hitachi Denshi KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP12780378A priority Critical patent/JPS5556449A/en
Publication of JPS5556449A publication Critical patent/JPS5556449A/en
Publication of JPS6213724B2 publication Critical patent/JPS6213724B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To facilitate ready assembling and alignment of a video head motor by inserting a cylindrical member having a slit on the wheel end surface at the end of a rotary shaft into recess slot of a holder having a light emission element and a photodetector disposed oppositely to thereby detect the rotating angle.
CONSTITUTION: A stator 1 and pneumatic bearings 16, 17 are integrated by a frame 4, a rotor permanent magnet 6 engaged with a rotary shaft 5 is installed in the frame 4, a head drum 7 is at one end of the shaft 7, and a wheel 18 is provided at the other end of the shaft 7. A cylindrical member 18 is coaxially provided with the rotary shaft 5 at the end of the wheel 18 and with a slit 18b. A holder 19 having a light emission element 20a and a photodetector 20b are disposed oppositely is inserted into the annular recess slot oppositely to the member 18a to thereby detect the angle and speed of the rotor. Thus, it can readily execute the fine adjustment of an angle detector 21 as well as disassembly and assembly of the video head motor.
COPYRIGHT: (C)1980,JPO&Japio
JP12780378A 1978-10-19 1978-10-19 Video head motor Granted JPS5556449A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12780378A JPS5556449A (en) 1978-10-19 1978-10-19 Video head motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12780378A JPS5556449A (en) 1978-10-19 1978-10-19 Video head motor

Publications (2)

Publication Number Publication Date
JPS5556449A true JPS5556449A (en) 1980-04-25
JPS6213724B2 JPS6213724B2 (en) 1987-03-28

Family

ID=14969054

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12780378A Granted JPS5556449A (en) 1978-10-19 1978-10-19 Video head motor

Country Status (1)

Country Link
JP (1) JPS5556449A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984000647A1 (en) * 1982-07-27 1984-02-16 Fanuc Ltd Device for coupling servo motor to rotary detector

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01124459U (en) * 1988-02-18 1989-08-24

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984000647A1 (en) * 1982-07-27 1984-02-16 Fanuc Ltd Device for coupling servo motor to rotary detector

Also Published As

Publication number Publication date
JPS6213724B2 (en) 1987-03-28

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