JPS54146608A - Tone-arm device - Google Patents

Tone-arm device

Info

Publication number
JPS54146608A
JPS54146608A JP5430578A JP5430578A JPS54146608A JP S54146608 A JPS54146608 A JP S54146608A JP 5430578 A JP5430578 A JP 5430578A JP 5430578 A JP5430578 A JP 5430578A JP S54146608 A JPS54146608 A JP S54146608A
Authority
JP
Japan
Prior art keywords
arm
records
horizontal
tone
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.)
Granted
Application number
JP5430578A
Other languages
Japanese (ja)
Other versions
JPS6315645B2 (en
Inventor
Satoru Kusaka
Kuninori Shino
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP5430578A priority Critical patent/JPS54146608A/en
Priority to AU46662/79A priority patent/AU524048B2/en
Priority to CA326,841A priority patent/CA1104940A/en
Priority to US06/036,992 priority patent/US4241926A/en
Priority to FR7911637A priority patent/FR2425691B1/en
Priority to NL7903611A priority patent/NL7903611A/en
Priority to GB7915759A priority patent/GB2020880B/en
Priority to DE19792918525 priority patent/DE2918525A1/en
Publication of JPS54146608A publication Critical patent/JPS54146608A/en
Publication of JPS6315645B2 publication Critical patent/JPS6315645B2/ja
Granted 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
    • G11B3/10—Arranging, supporting, or driving of heads or of transducers relatively to record carriers
    • G11B3/12—Supporting in balanced, counterbalanced or loaded operative position during transducing, e.g. loading in direction of traverse
    • G11B3/125—Supporting in balanced, counterbalanced or loaded operative position during transducing, e.g. loading in direction of traverse by using electric or magnetic means

Abstract

PURPOSE:To positively detect the ends of records by a simple structure, by mounting an electromagnetic means for turning in the horizontal direction, its control means and a positional detector so that they be used for a tone-arm. CONSTITUTION:When a tone-arm 1 traces slong a sound groove of a record and reaches the last sound groove location and a lead-out location, signals are each generated at each coil 22 and 23 for horizontal detection and horizontal drive. In this case, output signals corresponding to width in the moving direction of a window 35 set are generates from a luminous and light receiving element 37 because the wondow 35 of a shutter 34 moving in synchronous with a horizontal turning shaft 10 passes between luminous and light receiving each element 36 and 37 disposed in facing shapes. Thus, an AND 39 energized by the element 37 and the detecting signals of the coil 22 opens its gate, and supplies the output signals to a vertical drive coil 14. Consequently, the ends of records can positively be detected because the arm 1 parts from records and is stopped at a fixed location.
JP5430578A 1978-05-08 1978-05-08 Tone-arm device Granted JPS54146608A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP5430578A JPS54146608A (en) 1978-05-08 1978-05-08 Tone-arm device
AU46662/79A AU524048B2 (en) 1978-05-08 1979-05-02 Tone arm assembly
CA326,841A CA1104940A (en) 1978-05-08 1979-05-03 Tone arm assembly
US06/036,992 US4241926A (en) 1978-05-08 1979-05-08 Tone arm assembly
FR7911637A FR2425691B1 (en) 1978-05-08 1979-05-08 READING ARM ASSEMBLY
NL7903611A NL7903611A (en) 1978-05-08 1979-05-08 TONE LOWER UNIT.
GB7915759A GB2020880B (en) 1978-05-08 1979-05-08 Record player tone arm assembly damping vibrations
DE19792918525 DE2918525A1 (en) 1978-05-08 1979-05-08 TONE ARM SUPPORT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5430578A JPS54146608A (en) 1978-05-08 1978-05-08 Tone-arm device

Publications (2)

Publication Number Publication Date
JPS54146608A true JPS54146608A (en) 1979-11-16
JPS6315645B2 JPS6315645B2 (en) 1988-04-05

Family

ID=12966850

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5430578A Granted JPS54146608A (en) 1978-05-08 1978-05-08 Tone-arm device

Country Status (1)

Country Link
JP (1) JPS54146608A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6120047A (en) * 1984-07-09 1986-01-28 Canon Inc Photodetecting member

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6120047A (en) * 1984-07-09 1986-01-28 Canon Inc Photodetecting member

Also Published As

Publication number Publication date
JPS6315645B2 (en) 1988-04-05

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