Title:
GEAR PUMP AND IMAGE RECORDING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2015/129256
Kind Code:
A1
Abstract:
To reduce frictional heat generated between a rotation shaft and a bearing portion in a gear pump in which the rotation shaft having a gear mounted thereon is received by the bearing portion and an image recording apparatus having the gear pump. Provided is a gear pump which has a rotation shaft, a bearing portion which receives the rotation shaft, and a gear which is mounted on the rotation shaft and rotates with the rotation shaft, in such a manner that the gear feeds liquid. Furthermore, at least either a concave portion or a convex portion is provided in at least either the rotation shaft or the bearing portion.
Inventors:
MITSUO NORITAKA (JP)
ANDO MASAAKI (JP)
ANDO MASAAKI (JP)
Application Number:
PCT/JP2015/000935
Publication Date:
September 03, 2015
Filing Date:
February 24, 2015
Export Citation:
Assignee:
SEIKO EPSON CORP (JP)
International Classes:
F04C2/18; B41J2/175; F04C15/00
Foreign References:
| JP2012021516A | 2012-02-02 | |||
| JP2005354895A | 2005-12-22 | |||
| JPH09280181A | 1997-10-28 | |||
| JPH04100339A | 1992-04-02 |
Attorney, Agent or Firm:
WATANABE, Kazuaki et al. (80 Harashinden, Hirooka, Shiojiri-sh, Nagano 85, JP)
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