Title:
BEARING DEVICE AND IMAGE FORMATION DEVICE
Document Type and Number:
Japanese Patent JP2019027486
Kind Code:
A
Abstract:
To provide a bearing device capable of precisely supporting a rotation axis by allowing the heat expansion.SOLUTION: On the outer peripheral surface 301b of a bearing 301, a positioning projection 301E provided with a contact surface 301Ea at the tip end, which contacts the inner wall surface 303a1 of a fitting hole 303a of a rear side plate 303; and a non-positioning part 301G not in contact with the inner wall surface 303a1 are provided, the positioning projection 301E and the non-positioning part 301G are alternately arranged in the circumferential direction of the bearing 301. On the inner peripheral surface 301a of the bearing 301, a bearing projection 301D having a sliding surface 301Da in contact with the outer peripheral surface 302a of the rotation shaft 302 at the tip end, and a non-sliding part 301F not in contact with the outer peripheral surface 302a of the rotation shaft 302, the bearing projection 301D and the non-sliding part 301F are alternately arranged in the circumferential direction of the bearing 301.SELECTED DRAWING: Figure 2
Inventors:
NARITA KAZUYUKI
ISHIKAWA HAYASHI
TAJIRI TAKESHI
YAMANA KENTARO
ISHIKAWA HAYASHI
TAJIRI TAKESHI
YAMANA KENTARO
Application Number:
JP2017146008A
Publication Date:
February 21, 2019
Filing Date:
July 28, 2017
Export Citation:
Assignee:
CANON KK
International Classes:
F16C35/067; F16C17/02
Attorney, Agent or Firm:
Nakagawa International Patent Office