- 专利标题： Developer accommodating device with screw including screw blade as rotator, developing device, process cartridge, and image forming apparatus
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申请号： US17751673申请日： 2022-05-24
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公开(公告)号： US11835887B2公开(公告)日： 2023-12-05
- 发明人: Yuuki Tsuchiya , Yoshihiro Fujiwara , Tomohiro Kubota , Shuntaroh Tamaki , Ryusuke Mase
- 申请人： Yuuki Tsuchiya , Yoshihiro Fujiwara , Tomohiro Kubota , Shuntaroh Tamaki , Ryusuke Mase
- 申请人地址： JP Kanagawa
- 专利权人： RICOH COMPANY, LTD.
- 当前专利权人： RICOH COMPANY, LTD.
- 当前专利权人地址： JP Tokyo
- 代理机构： XSENSUS LLP
- 优先权： JP 21097116 2021.06.10
- 主分类号： G03G15/08
- IPC分类号： G03G15/08
摘要：
A developer accommodating device includes a rotator including a rotation shaft, a collar that rotates together with the rotation shaft, and a bearing rotatably supporting the rotation shaft via the collar. The rotation shaft includes a resin material, and collar including a metal material. The collar includes a collar main portion to be in sliding contact with the bearing, and a flange portion closer to a center of the rotator in an axial direction of the rotator than the collar main portion. The collar main portion has a first outer diameter, and the flange portion has a second outer diameter greater than the first outer diameter of the collar main portion.
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