JPS5728308A - Engaging tool - Google Patents
Engaging toolInfo
- Publication number
- JPS5728308A JPS5728308A JP10290980A JP10290980A JPS5728308A JP S5728308 A JPS5728308 A JP S5728308A JP 10290980 A JP10290980 A JP 10290980A JP 10290980 A JP10290980 A JP 10290980A JP S5728308 A JPS5728308 A JP S5728308A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- magnetic
- engaging hole
- ferromagnetic
- prevents
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H01F7/0231—Magnetic circuits with PM for power or force generation
- H01F7/0252—PM holding devices
- H01F7/0263—Closures, bags, bands, engagement devices with male and female parts
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
Abstract
PURPOSE:To prevent decrease of magnetic force from the effect of magnetic interference, by equipping a nonmagnetic case around a magnetic shield-plate on a permanent magnet having an engaging hole. CONSTITUTION:A magnetic shield-plate 3 is provided on a permanent magnet 1 having an engaging hole 1a. The plate 3, the magnet 1 and a ferromagnet plate 2 are combined by both ends 4a and 4b of a nonmagnetic case 4. On the other hand, a ferromagnetic lever 9a, projected from a ferromagnetic plate, is inserted through an engaging hole 1a and fixed in touch with a ferromagnetic lever 2a of the plate 2. At the same time, the plate 9 is engaged within an edge 4a of a case 4. Therefore, an edge 4a prevents the plate 3 from touching magnetic record cards, so that magnetic interference would never happen. This prevents magnetic interference without decreasing magnetic contact force.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10290980A JPS6031086B2 (en) | 1980-07-26 | 1980-07-26 | Engagement tool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10290980A JPS6031086B2 (en) | 1980-07-26 | 1980-07-26 | Engagement tool |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9950583A Division JPS5972106A (en) | 1983-06-06 | 1983-06-06 | Engaging device |
JP9950483A Division JPS5972105A (en) | 1983-06-06 | 1983-06-06 | Engaging device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5728308A true JPS5728308A (en) | 1982-02-16 |
JPS6031086B2 JPS6031086B2 (en) | 1985-07-20 |
Family
ID=14339974
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10290980A Expired JPS6031086B2 (en) | 1980-07-26 | 1980-07-26 | Engagement tool |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6031086B2 (en) |
-
1980
- 1980-07-26 JP JP10290980A patent/JPS6031086B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6031086B2 (en) | 1985-07-20 |
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