JPS5028705U - Cantilever for pickup cartridges - Google Patents

Cantilever for pickup cartridges

Info

Publication number
JPS5028705U
JPS5028705U JP8138473U JP8138473U JPS5028705U JP S5028705 U JPS5028705 U JP S5028705U JP 8138473 U JP8138473 U JP 8138473U JP 8138473 U JP8138473 U JP 8138473U JP S5028705 U JPS5028705 U JP S5028705U
Authority
JP
Japan
Prior art keywords
cantilever
invented
aluminium
magnet
stylus
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
JP8138473U
Other languages
Japanese (ja)
Other versions
JPS563774Y2 (en
Inventor
H Nakijima
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 JP8138473U priority Critical patent/JPS5028705U/en
Priority to AU70751/74A priority patent/AU493577B2/en
Priority to US485375A priority patent/US3918723A/en
Priority to NLAANVRAGE7409021,A priority patent/NL182515C/en
Priority to GB3015274A priority patent/GB1477006A/en
Priority to CA204,320A priority patent/CA1034049A/en
Priority to FR747423844A priority patent/FR2237261B1/fr
Priority to DE2432975A priority patent/DE2432975C2/en
Priority to IT2498574A priority patent/IT1022059B/en
Publication of JPS5028705U publication Critical patent/JPS5028705U/en
Application granted granted Critical
Publication of JPS563774Y2 publication Critical patent/JPS563774Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Laminated Bodies (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

Method of making cantilever by laminating carbon fibres on aluminium pipe. Aluminium cantilever vertical elastic ratio E 7000kg/mm2 is small while density 2.7 is rather big. Hence the frequency responses of conventional cartridges with aluminium cantilevers has sags in the middle to high frequency range. Carbon fibre cantilever with high rigidity (can be made very light as cantilever, extending the high resonance frequency). Fig.1: Conventional stylus with aluminium pipe cantilever. Fig.2: Section of cartridge having invented cantilever. Fig.3: Section of invented cantilever. Fig.4: Frequency responses of conventional and invented cantilever with 1 conventional aluminium cantilever, 2 tip, 3 magnet, 11 invented carbon fibre cantilever, 11a aluminium pipe, 11b layer of carbon fibres, 12 stylus, 13 magnet, 14 pole pieces, 15 coils, 16 damper, 17 sag with conventional cantilever, 18 improved response by using invented cantilever, 19 separation with conventional cantilever, 20 separation available with invented cantilever.
JP8138473U 1973-07-09 1973-07-09 Cantilever for pickup cartridges Granted JPS5028705U (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
JP8138473U JPS5028705U (en) 1973-07-09 1973-07-09 Cantilever for pickup cartridges
AU70751/74A AU493577B2 (en) 1974-07-02 Cantilever for use witha pickup cartridge
NLAANVRAGE7409021,A NL182515C (en) 1973-07-09 1974-07-03 NEEDLE CARRIER FOR A GROOVE TABLE.
US485375A US3918723A (en) 1973-07-09 1974-07-03 Cantilever for use with pickup cartridge
GB3015274A GB1477006A (en) 1973-07-09 1974-07-08 Cantilevers for use with gramophone record player pick-
CA204,320A CA1034049A (en) 1973-07-09 1974-07-08 Carbonaceous fiber cantilever for pickup cartridges
FR747423844A FR2237261B1 (en) 1973-07-09 1974-07-09
DE2432975A DE2432975C2 (en) 1973-07-09 1974-07-09 Cantilever for pickups and process for their manufacture
IT2498574A IT1022059B (en) 1973-07-09 1974-07-09 Pickup arm for record player with increased modulus of elasticity - has freely supported carbon fibre tubular section tapering towards one end with bent axis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8138473U JPS5028705U (en) 1973-07-09 1973-07-09 Cantilever for pickup cartridges

Publications (2)

Publication Number Publication Date
JPS5028705U true JPS5028705U (en) 1975-04-02
JPS563774Y2 JPS563774Y2 (en) 1981-01-28

Family

ID=13744793

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8138473U Granted JPS5028705U (en) 1973-07-09 1973-07-09 Cantilever for pickup cartridges

Country Status (2)

Country Link
JP (1) JPS5028705U (en)
IT (1) IT1022059B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49107884U (en) * 1972-12-29 1974-09-13
JPS55110627A (en) * 1979-02-17 1980-08-26 Tokai Rika Co Ltd Lever switch device for automobile
JPS5613329U (en) * 1979-07-12 1981-02-04

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49107884U (en) * 1972-12-29 1974-09-13
JPS55110627A (en) * 1979-02-17 1980-08-26 Tokai Rika Co Ltd Lever switch device for automobile
JPS5613329U (en) * 1979-07-12 1981-02-04

Also Published As

Publication number Publication date
JPS563774Y2 (en) 1981-01-28
IT1022059B (en) 1978-03-20

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