JPS5766567A - Structure of vertical driver of tone arm - Google Patents

Structure of vertical driver of tone arm

Info

Publication number
JPS5766567A
JPS5766567A JP14242280A JP14242280A JPS5766567A JP S5766567 A JPS5766567 A JP S5766567A JP 14242280 A JP14242280 A JP 14242280A JP 14242280 A JP14242280 A JP 14242280A JP S5766567 A JPS5766567 A JP S5766567A
Authority
JP
Japan
Prior art keywords
magnet
frame
couple
pole
fixed
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
Application number
JP14242280A
Other languages
Japanese (ja)
Inventor
Manabu Harada
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP14242280A priority Critical patent/JPS5766567A/en
Publication of JPS5766567A publication Critical patent/JPS5766567A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/02—Arrangements of heads
    • G11B3/08—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers
    • G11B3/085—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers using automatic means

Abstract

PURPOSE:To obtain large torque with a small-sized constitution by providing a couple of coils in a gap between a yoke and a magnet so that it swivels freely, and coupling those coils with an arm frame. CONSTITUTION:A frame 2 is rectangular and at its lower end, a fixed plate 3 is provided as a fixed side. In the inside cavity part 2a of the frame 2, a semicircular magnet 4, a couple of yokes 5a and 5b, and a couple of fan-shaped vertical driving coils 6a and 6b are arranged. The lower part of the magnet 4 is fixed to the fixed plate 3 and divided into, for example, an upper and a lower halfs; while one surface 4a is magnetized with the upper half to the S pole and the lower half to the N pole, the other surface 4b is also magnetized with the upper half to the N pole and the lower half to the S pole. Then, a couple of yokes 5a and 5b are provided at proper intervals from both the surfaces 4a and 4b of the magnet 4. The magnet 4 is fixed vertically to the fixed plate 3 forming the fixed side and its fixation position is nearly in the center of the cavity part of the frame 2 while the magnet is in parallel to the side walls 2b and 2c of the frame 2.
JP14242280A 1980-10-14 1980-10-14 Structure of vertical driver of tone arm Pending JPS5766567A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14242280A JPS5766567A (en) 1980-10-14 1980-10-14 Structure of vertical driver of tone arm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14242280A JPS5766567A (en) 1980-10-14 1980-10-14 Structure of vertical driver of tone arm

Publications (1)

Publication Number Publication Date
JPS5766567A true JPS5766567A (en) 1982-04-22

Family

ID=15314955

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14242280A Pending JPS5766567A (en) 1980-10-14 1980-10-14 Structure of vertical driver of tone arm

Country Status (1)

Country Link
JP (1) JPS5766567A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58183542A (en) * 1982-04-20 1983-10-26 Tamura Electric Works Ltd Card transport path of card reader

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58183542A (en) * 1982-04-20 1983-10-26 Tamura Electric Works Ltd Card transport path of card reader
JPS6221696B2 (en) * 1982-04-20 1987-05-14 Tamura Denki Seisakusho Kk

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