JPH0451105U - - Google Patents
Info
- Publication number
- JPH0451105U JPH0451105U JP9368590U JP9368590U JPH0451105U JP H0451105 U JPH0451105 U JP H0451105U JP 9368590 U JP9368590 U JP 9368590U JP 9368590 U JP9368590 U JP 9368590U JP H0451105 U JPH0451105 U JP H0451105U
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- shaft
- magnet roll
- magnetic pole
- roll
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005347 demagnetization Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 claims 1
- 230000004907 flux Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
Description
第１図及び第２図はそれぞれ従来のマグネツト
ロールを示す概要図、第３図は従来のマグネツト
ロールの磁気パターンの概念図、第４図乃至第６
図は本考案マグネツトロールの実施態様を示す概
要図とそれぞれの磁気パターンの概念図である。
１……シヤフト、２……マグネツト、２ａ，２
ｂ……マグネツトの両端部、１１……シヤフト、
１２，１２ａ〜１２ｄ……マグネツト。
Figures 1 and 2 are schematic diagrams showing conventional magnet rolls, Figure 3 is a conceptual diagram of the magnetic pattern of a conventional magnet roll, and Figures 4 to 6 are schematic diagrams showing conventional magnet rolls.
The figure is a schematic diagram showing an embodiment of the magnet roll of the present invention and a conceptual diagram of each magnetic pattern. 1...Shaft, 2...Magnet, 2a, 2
b... Both ends of the magnet, 11... Shaft,
12, 12a to 12d... Magnet.
Claims (1)
ら構成された多極マグネツトロールにおいて、少
なくともドクターブレードに対向する磁極のマグ
ネツトの両端近傍部を該マグネツトロールの要部
外径よりも小さくするか、又は減磁するかにより
、前記磁極の両端部におけるエツジ効果による表
面磁束密度の増大を抑制したことを特徴とするマ
グネツトロール。 In a multi-polar magnet roll composed of a shaft and a magnet disposed around the shaft, at least the portions near both ends of the magnet of the magnetic pole facing the doctor blade are made smaller than the outer diameter of the main part of the magnet roll, or Alternatively, a magnet roll is characterized in that an increase in surface magnetic flux density due to an edge effect at both ends of the magnetic pole is suppressed by demagnetization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9368590U JPH0451105U (en) | 1990-09-05 | 1990-09-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9368590U JPH0451105U (en) | 1990-09-05 | 1990-09-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0451105U true JPH0451105U (en) | 1992-04-30 |
Family
ID=31831091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9368590U Pending JPH0451105U (en) | 1990-09-05 | 1990-09-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0451105U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003229321A (en) * | 2002-02-04 | 2003-08-15 | Suzuka Fuji Xerox Co Ltd | Method of manufacturing magnet roll |
| JP2005217168A (en) * | 2004-01-29 | 2005-08-11 | Tdk Corp | Magnet roll and developing apparatus |
| JP2021012163A (en) * | 2019-07-09 | 2021-02-04 | 日亜化学工業株式会社 | Magnetic sensor device |
-
1990
- 1990-09-05 JP JP9368590U patent/JPH0451105U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003229321A (en) * | 2002-02-04 | 2003-08-15 | Suzuka Fuji Xerox Co Ltd | Method of manufacturing magnet roll |
| JP2005217168A (en) * | 2004-01-29 | 2005-08-11 | Tdk Corp | Magnet roll and developing apparatus |
| JP2021012163A (en) * | 2019-07-09 | 2021-02-04 | 日亜化学工業株式会社 | Magnetic sensor device |