JPS55123020A - Rotary device - Google Patents

Rotary device

Info

Publication number
JPS55123020A
JPS55123020A JP3034379A JP3034379A JPS55123020A JP S55123020 A JPS55123020 A JP S55123020A JP 3034379 A JP3034379 A JP 3034379A JP 3034379 A JP3034379 A JP 3034379A JP S55123020 A JPS55123020 A JP S55123020A
Authority
JP
Japan
Prior art keywords
magnet
armature
fluid bearing
small
projection
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
JP3034379A
Other languages
Japanese (ja)
Other versions
JPS5858527B2 (en
Inventor
Teruo Maruyama
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 JP54030343A priority Critical patent/JPS5858527B2/en
Priority to US06/109,491 priority patent/US4332428A/en
Priority to GB8000501A priority patent/GB2043182B/en
Priority to FR8000568A priority patent/FR2446953A1/en
Priority to CA343,739A priority patent/CA1132170A/en
Priority to DE3001432A priority patent/DE3001432C2/en
Publication of JPS55123020A publication Critical patent/JPS55123020A/en
Publication of JPS5858527B2 publication Critical patent/JPS5858527B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Sliding-Contact Bearings (AREA)
  • Sealing Of Bearings (AREA)

Abstract

PURPOSE: To attain a high-accuracy rotating function and prevent the wear of a bearing part in a rotary device supported by a fluid bearing, by making the diameter of the fluid bearing very small so that the pressure of oil film on the fluid bearing is balanced to the attractive force of a magnet.
CONSTITUTION: An end face 8 of a fixed shaft 1 secured on a base 6 and rotatably engaged in a housing 3 is made flat. A projection 8a of very small diameter is provided in the center of the end face 8a. A spiral groove 7 is provided on the surface of the projection 8a and is a very small groove. A magnet casing 11 is fitted with a bushing 12 on the sleeve part 13 of the housing 3. An armature magnet 9 is housed in the casing 11. The magnet faces an armature which comprises a core 15 and an armature coil 14 in a fixed plate 16 secured on the base 6. A position rotor 17 is attached to the bottom of the sleeve part 13 so that the rotor faces a position stator 10.
COPYRIGHT: (C)1980,JPO&Japio
JP54030343A 1979-01-16 1979-03-14 rotating device Expired JPS5858527B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP54030343A JPS5858527B2 (en) 1979-03-14 1979-03-14 rotating device
US06/109,491 US4332428A (en) 1979-01-16 1980-01-04 Rotary mechanism with axial bearings
GB8000501A GB2043182B (en) 1979-01-16 1980-01-08 Bearing assemblies
FR8000568A FR2446953A1 (en) 1979-01-16 1980-01-11 ROTATING MECHANISM PROVIDED WITH AXIAL LOADED BEARINGS
CA343,739A CA1132170A (en) 1979-01-16 1980-01-15 Rotary mechanism with axial bearings
DE3001432A DE3001432C2 (en) 1979-01-16 1980-01-16 Rotary mechanism with a fluid-lubricated axial bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54030343A JPS5858527B2 (en) 1979-03-14 1979-03-14 rotating device

Publications (2)

Publication Number Publication Date
JPS55123020A true JPS55123020A (en) 1980-09-22
JPS5858527B2 JPS5858527B2 (en) 1983-12-26

Family

ID=12301181

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54030343A Expired JPS5858527B2 (en) 1979-01-16 1979-03-14 rotating device

Country Status (1)

Country Link
JP (1) JPS5858527B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57171117A (en) * 1981-04-15 1982-10-21 Fuji Xerox Co Ltd Device for preventing moving body from floating up
JPS585518A (en) * 1981-07-01 1983-01-12 Nippon Seiko Kk Dynamic pressure spindle apparatus
JPS5854223A (en) * 1981-09-25 1983-03-31 Nippon Seiko Kk Spindle device of dynamic pressure type
JPS63176815A (en) * 1988-01-06 1988-07-21 Nippon Seiko Kk Dynamic pressure fluid bearing device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5982317U (en) * 1982-11-25 1984-06-04 三洋電機株式会社 Tape recorder muting circuit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57171117A (en) * 1981-04-15 1982-10-21 Fuji Xerox Co Ltd Device for preventing moving body from floating up
JPS585518A (en) * 1981-07-01 1983-01-12 Nippon Seiko Kk Dynamic pressure spindle apparatus
JPS5854223A (en) * 1981-09-25 1983-03-31 Nippon Seiko Kk Spindle device of dynamic pressure type
JPH033805B2 (en) * 1981-09-25 1991-01-21 Nippon Seiko Kk
JPS63176815A (en) * 1988-01-06 1988-07-21 Nippon Seiko Kk Dynamic pressure fluid bearing device

Also Published As

Publication number Publication date
JPS5858527B2 (en) 1983-12-26

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