Title:
駆動装置、画像形成装置及びグリース組成物
Document Type and Number:
Japanese Patent JP6527720
Kind Code:
B2
Abstract:
A drive device includes a gear having a hole; a shaft that passes through the hole; and a grease composition that is held in a clearance between the shaft and an inner peripheral surface of the hole. The gear rotates on a peripheral surface of the shaft. At least one of the gear and the shaft is made of a resin. The clearance is in a range of 10 to 110 µm. The grease composition contains a hydrocarbon base oil and lithium soap serving as a thickener. A weight ratio of the hydrocarbon base oil to the lithium soap is in a range of 94.5:5.5 to 96.0:4.0. A consistency of the grease composition is in a range of 360 to 400.
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Inventors:
Toshiyuki Kahata
Kumiko Seo
Masahiro Ishida
Naoki Matsuda
Teruyoshi Tanaka
Kumiko Seo
Masahiro Ishida
Naoki Matsuda
Teruyoshi Tanaka
Application Number:
JP2015045785A
Publication Date:
June 05, 2019
Filing Date:
March 09, 2015
Export Citation:
Assignee:
株式会社リコー
東レ・ダウコーニング株式会社
東レ・ダウコーニング株式会社
International Classes:
G03G21/16; C10M101/02; C10M105/04; C10M107/02; C10M117/02; C10M143/00; C10M169/02; G03G21/18
Domestic Patent References:
| JP55092800A | ||||
| JP2013103966A | ||||
| JP2005015556A | ||||
| JP2001089778A | ||||
| JP2011148908A | ||||
| JP2002371290A | ||||
| JP2008083361A | ||||
| JP2008191384A |
Foreign References:
| US5015401 | ||||
| WO2005090529A1 |
Attorney, Agent or Firm:
Toshi Kuroda