JPS5518075A - Magnet for attraction - Google Patents
Magnet for attractionInfo
- Publication number
- JPS5518075A JPS5518075A JP9171178A JP9171178A JPS5518075A JP S5518075 A JPS5518075 A JP S5518075A JP 9171178 A JP9171178 A JP 9171178A JP 9171178 A JP9171178 A JP 9171178A JP S5518075 A JPS5518075 A JP S5518075A
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- faces
- attractive
- spacer
- magnetic flux
- 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.)
- Granted
Links
Abstract
PURPOSE: To dispense with cobalt and nickel 2nd reduce the cost of a permanent magnet, by utilizing ferrite of high coercive force at a low magnetic flux density to make the magnet.
CONSTITUTION: The cylindrical permanent magnet 8 made of the ferrite magnetized in the axial or circumferential direction of a columnar iron core 7 is arranged thereon. A spacer 11 made of a magnet of high coercive force is provided on the iron core 7. A bottomed cylindrical casing 9 is fitted on the permanent magnet 8 and the spacer 11. The end faces of the magnet 8 and the core 7 open at the mouth of the casing 9 are used as attractive faces 12. When a piece 15 is brought into contact with the attractive faces 12, a magnetic flux of high density are produced through the faces to strongly attract the piece 15. If the area of the spacer 11 is contact with the core 7 is four times larger than that of the magnet 8 and the residual flux density of the magnet 8 is 4000 gauss, the magnetic flux density on the attractive faces 12 is 4000×4=16000 gauss. The attractive force per unit area is thus heightened.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9171178A JPS5518075A (en) | 1978-07-27 | 1978-07-27 | Magnet for attraction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9171178A JPS5518075A (en) | 1978-07-27 | 1978-07-27 | Magnet for attraction |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5518075A true JPS5518075A (en) | 1980-02-07 |
JPS6110965B2 JPS6110965B2 (en) | 1986-04-01 |
Family
ID=14034089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9171178A Granted JPS5518075A (en) | 1978-07-27 | 1978-07-27 | Magnet for attraction |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5518075A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6317599A (en) * | 1986-07-09 | 1988-01-25 | 三菱電線工業株式会社 | Insulating substrate |
JPS63110795A (en) * | 1986-10-29 | 1988-05-16 | 三井東圧化学株式会社 | Wiring board |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5186607B1 (en) * | 2012-07-10 | 2013-04-17 | 東和パーツ株式会社 | Magnet holder, magnetic holding device using the same, and injection mold |
-
1978
- 1978-07-27 JP JP9171178A patent/JPS5518075A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6317599A (en) * | 1986-07-09 | 1988-01-25 | 三菱電線工業株式会社 | Insulating substrate |
JPS63110795A (en) * | 1986-10-29 | 1988-05-16 | 三井東圧化学株式会社 | Wiring board |
Also Published As
Publication number | Publication date |
---|---|
JPS6110965B2 (en) | 1986-04-01 |
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