JPS5476101A - Tone arm - Google Patents

Tone arm

Info

Publication number
JPS5476101A
JPS5476101A JP14272677A JP14272677A JPS5476101A JP S5476101 A JPS5476101 A JP S5476101A JP 14272677 A JP14272677 A JP 14272677A JP 14272677 A JP14272677 A JP 14272677A JP S5476101 A JPS5476101 A JP S5476101A
Authority
JP
Japan
Prior art keywords
counter weight
chuck
weight
adjusting
restrictions
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
JP14272677A
Other languages
Japanese (ja)
Other versions
JPS611802B2 (en
Inventor
Masayuki Inoue
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 Ltd
Original Assignee
Hitachi Ltd
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 Ltd filed Critical Hitachi Ltd
Priority to JP14272677A priority Critical patent/JPS5476101A/en
Publication of JPS5476101A publication Critical patent/JPS5476101A/en
Publication of JPS611802B2 publication Critical patent/JPS611802B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To reduce the movement of the centroid position of a counter weight and eliminate the restrictions of player case by forming the moving mechanism of counter weight and the adjusting mechanism of resonance frequency of a dynamic absorber in a telescopic structure.
CONSTITUTION: The counter weight consisting of a housing 14, adjusting screw 15, adjusting guide pin 16, chuck 10, spring 11, weight 12, viscous material 13 moves in its axial direction as a moving screw 6 is turned. Turning of the adjusting screw 15 causes the chuck 10 to be moved in the axial direction by way of the adjusting guide pin 16, by which the free length of the spring between the chuck 10 and weight 12 is changed and the resonance frequency (f) of a dynamic absorber is changed by the formula 1. In this case, the distance between a bearing 2 and the rear end of the counter weight does not change at all and the movement of the centroid position of the counter weight is small. Hence, the restrictions of the player case mounting the tone arm may be eliminated.
COPYRIGHT: (C)1979,JPO&Japio
JP14272677A 1977-11-30 1977-11-30 Tone arm Granted JPS5476101A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14272677A JPS5476101A (en) 1977-11-30 1977-11-30 Tone arm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14272677A JPS5476101A (en) 1977-11-30 1977-11-30 Tone arm

Publications (2)

Publication Number Publication Date
JPS5476101A true JPS5476101A (en) 1979-06-18
JPS611802B2 JPS611802B2 (en) 1986-01-20

Family

ID=15322148

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14272677A Granted JPS5476101A (en) 1977-11-30 1977-11-30 Tone arm

Country Status (1)

Country Link
JP (1) JPS5476101A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6312104A (en) * 1986-07-02 1988-01-19 株式会社村田製作所 Electronic parts
JPS6329904A (en) * 1986-07-23 1988-02-08 株式会社村田製作所 Electronic parts

Also Published As

Publication number Publication date
JPS611802B2 (en) 1986-01-20

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