Title:
流体動圧軸受装置、回転駆動装置、及び、画像形成装置
Document Type and Number:
Japanese Patent JP6869485
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a fluid dynamic pressure bearing device, a rotary driving device and an image formation apparatus that hardly cause trouble such that a sealing member for sealing an opening part comes out to cause a lubricant to leak out of a device and trouble such as foreign matter enters a bearing to cause a function of the bearing to deteriorates.SOLUTION: A fluid dynamic pressure bearing device is provided with a bearing 3 which bears a shaft member 8 not in contact with a lubricant interposed with the shaft member 8 rotating in a predetermined direction, a housing 2 which retains the bearing 3, and a thrust bush 1 (sealing member) which seals an opening part formed on the housing 2. Then thrust bush 1 is retained by the housing 2 with a male screw part 1a (or a female screw part 1b), formed on an outer peripheral surface (or an inner peripheral surface) thereof, threadably engaged with a female screw part 2a (or a male screw part 2b) formed on an inner peripheral surface (or an outer peripheral surface) of the housing 2.SELECTED DRAWING: Figure 6
Inventors:
Yugo Sasaki
Takeshi Tanaka
Takeshi Tanaka
Application Number:
JP2017092183A
Publication Date:
May 12, 2021
Filing Date:
May 08, 2017
Export Citation:
Assignee:
株式会社リコー
International Classes:
F16C17/10; F16C33/74; F16J13/12
Domestic Patent References:
| JP2015084646A | ||||
| JP2005195180A | ||||
| JP63106419A |
Attorney, Agent or Firm:
Yuji Kitajima