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JPS5619521A - Rotating head assembly - Google Patents

Rotating head assembly

Info

Publication number
JPS5619521A
JPS5619521A JP9537879A JP9537879A JPS5619521A JP S5619521 A JPS5619521 A JP S5619521A JP 9537879 A JP9537879 A JP 9537879A JP 9537879 A JP9537879 A JP 9537879A JP S5619521 A JPS5619521 A JP S5619521A
Authority
JP
Japan
Prior art keywords
cylinder
shaft
high accuracy
motor
oil film
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
JP9537879A
Other languages
Japanese (ja)
Other versions
JPS613006B2 (en
Inventor
Teruo Maruyama
Toshitoki Inoue
Masato Morimoto
Minoru Koda
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP9537879A priority Critical patent/JPS5619521A/en
Publication of JPS5619521A publication Critical patent/JPS5619521A/en
Publication of JPS613006B2 publication Critical patent/JPS613006B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Sliding-Contact Bearings (AREA)

Abstract

PURPOSE: To enable the assembling of high accuracy, by constituting that the sleeve can relatively be movable toward the shaft direction with the shaft in fixed state at sealing of lubrication oil.
CONSTITUTION: The construction of cylinder by fluid bearing is that the rotating sleeve 23 rotationably coupled with the center shaft 30 the one end of which is fixed to the lower housing 20 via lubrication oil film is rotated with the motor, and the function of revolution with high accuracy featured with fluid lubrication is succeeded. Further, fluid bearing is formed at the location placed inside the upper and lower cylinders 17, 19, rotor 28 of motor and stator 27, allowig to achieve sufficiently greater oil film rigidity against radial weight and compact constitution. At the upper end of the rotating sleeve 23, the upper cylinder 17 is provided, enabling the dismounting of the upper cylinder 17 simply from the upper part at the replacement of the head 2.
COPYRIGHT: (C)1981,JPO&Japio
JP9537879A 1979-07-26 1979-07-26 Rotating head assembly Granted JPS5619521A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9537879A JPS5619521A (en) 1979-07-26 1979-07-26 Rotating head assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9537879A JPS5619521A (en) 1979-07-26 1979-07-26 Rotating head assembly

Publications (2)

Publication Number Publication Date
JPS5619521A true JPS5619521A (en) 1981-02-24
JPS613006B2 JPS613006B2 (en) 1986-01-29

Family

ID=14135973

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9537879A Granted JPS5619521A (en) 1979-07-26 1979-07-26 Rotating head assembly

Country Status (1)

Country Link
JP (1) JPS5619521A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58109715A (en) * 1981-12-21 1983-06-30 Matsushita Electric Ind Co Ltd Fluid bearing device
JPS58180829A (en) * 1982-04-15 1983-10-22 Matsushita Electric Ind Co Ltd Hydraulic bearing device
JPS58172115U (en) * 1982-05-14 1983-11-17 日本精工株式会社 Dynamic pressure type gas bearing device
US4706143A (en) * 1982-09-30 1987-11-10 Matsushita Electric Industrial Co., Ltd. Rotary head cylinder device with fluid bearing

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58109715A (en) * 1981-12-21 1983-06-30 Matsushita Electric Ind Co Ltd Fluid bearing device
JPS6157489B2 (en) * 1981-12-21 1986-12-06 Matsushita Electric Ind Co Ltd
JPS58180829A (en) * 1982-04-15 1983-10-22 Matsushita Electric Ind Co Ltd Hydraulic bearing device
JPS58172115U (en) * 1982-05-14 1983-11-17 日本精工株式会社 Dynamic pressure type gas bearing device
JPS631053Y2 (en) * 1982-05-14 1988-01-12
US4706143A (en) * 1982-09-30 1987-11-10 Matsushita Electric Industrial Co., Ltd. Rotary head cylinder device with fluid bearing

Also Published As

Publication number Publication date
JPS613006B2 (en) 1986-01-29

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