Rotor bearing member, photoconductor unit including the same, and image forming apparatus

Patent metadata

Field	Value
Publication number	US-9335705-B1
Application number	US-201514721660-A
Country	US
Kind code	B1
Filing date	May 26, 2015
Priority date	Nov 26, 2014
Publication date	May 10, 2016
Grant date	May 10, 2016

Abstract

A rotor bearing member is attached to a support body. The support body includes a guide section that supports a first member and a second member such that the first member and the second member are movable toward a rotor. The first member includes a rotary shaft and rotates about the rotary shaft thereof while being in contact with the rotor. The second member includes a rotary shaft extending along the rotary shaft of the first member and cleans a surface of the first member while rotating in contact with the first member. The rotor bearing member includes a first bearing member and a second bearing member that rotatably support the rotary shaft of the second member and the rotary shaft of the first member, respectively, while the first bearing member and the second bearing member abut each other.

First claim

What is claimed is:

1. A rotor bearing member that is attached to a support body, wherein the support body includes a guide section that supports a first member and a second member such that the first member and the second member are movable toward a rotor, the first member including a rotary shaft and rotating about the rotary shaft thereof while being in contact with the rotor, the second member including a rotary shaft which extends along the rotary shaft of the first member and cleaning a surface of the first member while rotating in contact with the first member, the rotor bearing member comprising:
a first bearing member that rotatably supports the rotary shaft of the second member; and
a second bearing member that rotatably supports the rotary shaft of the first member;
wherein the first bearing member and the second bearing member support the rotary shaft of the second member and the rotary shaft of the first member, respectively, while the first bearing member and the second bearing member about each other,
wherein the first bearing member has an open portion to which the second member is attached, and an inclined surface is formed at each of corners of the open portion.

2. The rotor bearing member according to claim 1 ,
wherein a protrusion is formed on either one of a surface of the first bearing member and a surface of the second bearing member that abut each other.

3. The rotor bearing member according to claim 1 , wherein the first bearing member has a groove formed in a direction of movement toward the rotor and sliding on the support body, and a projection is formed on a bottom of the groove.

4. The rotor bearing member according to claim 3 , wherein side walls extend upright from the bottom of the groove, and an inclined surface is formed at each of corners of the side walls on a side to be inserted into the guide section of the support body.

5. The rotor bearing member according to claim 1 , wherein the second bearing member includes a recess that receives a peripheral surface of the rotary shaft of the first member, the recess being open at one end thereof and having a bottom at another end thereof, and a protrusion is formed on an outer surface of the bottom facing the rotary shaft of the second member.

6. The rotor bearing member according to claim 1 , wherein the guide section has an open portion to which the first bearing member and the second bearing member are attached, and a protrusion protruding toward the first bearing member and the second bearing member is formed at each of corners of the open portion.

7. A photoconductor unit comprising:
an image carrier as a rotor;
a charging member as a first member;
a cleaning member as a second member; and
the rotor bearing member of claim 1 .

8. An image forming apparatus comprising:
the photoconductor unit of claim 7 ;
a latent image forming unit that forms a latent image by exposing the image carrier which is charged by the charging member;
a developing device that develops the latent image formed by the latent image forming unit;
a transfer unit that transfers an image obtained through development by the developing device onto a recording medium; and
a fixing unit that fixes the image transferred onto the recording medium by the transfer unit.

Assignees

• Fuji Xerox Co Ltd

Inventors

• Fukuzawa Tsuneo
• Hoshino Hirohisa
• Fukai Takeo
• Fukumuro Koji
• Suzuki Kenji
• Ichihara Hirokazu
• Nishimura Akihito

Classifications

• G03G21/1647

  Mechanical connection means · CPC title

• F16C13/02

  Bearings · CPC title

• G03G2221/1654

  Locks and means for positioning or alignment · CPC title

• F16C23/04

  self-adjusting · CPC title

• G03G15/75 Primary

  Details relating to xerographic drum, band or plate, e.g. replacing, testing (electrographic recording members per se G03G5/00) · CPC title