JPS6088351U

JPS6088351U - developing roller

Info

Publication number: JPS6088351U
Application number: JP17975183U
Authority: JP
Inventors: 積利佐藤; 高橋　道男
Original assignee: 株式会社リコー
Priority date: 1983-11-21
Filing date: 1983-11-21
Publication date: 1985-06-17

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は電子写真複写機の一例を示す構成図、第２図は
従来の現像ローラを示す一部切断図、第３図および第４
図は本考案の実施例を示す一部破截側断面図および正断
面図、第５図は本考案の別の実施例を示す一部破截側断
面図、第６図ないし第８図はそれぞれ磁石および磁石支
持体の変形例を示す正断面図、第９図はスリーブの変形
例を示す一部正断面図である。３０・・・スリーブ、３１・・・ジャーナル部、３１ａ
・・・第１端軸、３４・・・脱着手段たるねじ、３５，
３８・・・ベアリング、３６・・・磁石支持体、３６ａ
・・・第２端部、３７・・・磁石、３９・・・端板。FIG. 1 is a configuration diagram showing an example of an electrophotographic copying machine, FIG. 2 is a partially cutaway diagram showing a conventional developing roller, and FIGS.
The figures are a partially cut-away side sectional view and a front sectional view showing an embodiment of the present invention, FIG. 5 is a partially cut-away side sectional view showing another embodiment of the present invention, and FIGS. 6 to 8 are FIG. 9 is a front sectional view showing a modified example of the magnet and the magnet support, respectively, and FIG. 9 is a partially front sectional view showing a modified example of the sleeve. 30...Sleeve, 31...Journal portion, 31a
...first end shaft, 34...screw serving as attachment/detachment means, 35,
38... Bearing, 36... Magnet support, 36a
. . . second end portion, 37 . . . magnet, 39 . . . end plate.

Claims

[Scope of utility model registration request]

a journal part that is fixed to one end of a sleeve made of a non-magnetic material and has a first end shaft protruding coaxially with the sleeve; and a journal part that supports a magnet and rotates the one end through a bearing in the journal part. a magnet support extending within the sleeve while being freely and axially fixably supported;
attachment/detachment means for attaching and detaching the magnet support to and from the journal portion; and an inner peripheral portion fixed to the other end of the magnet support via a bearing to a second end shaft protruding coaxially with the magnet support. an end plate having an outer peripheral portion removably fitted to the other end of the sleeve, and rotatably supported by the first end shaft and the second end shaft;