JPS55138601A - Detector for breadth and breadthwise displacement of sheet blank - Google Patents
Detector for breadth and breadthwise displacement of sheet blankInfo
- Publication number
- JPS55138601A JPS55138601A JP4562679A JP4562679A JPS55138601A JP S55138601 A JPS55138601 A JP S55138601A JP 4562679 A JP4562679 A JP 4562679A JP 4562679 A JP4562679 A JP 4562679A JP S55138601 A JPS55138601 A JP S55138601A
- Authority
- JP
- Japan
- Prior art keywords
- detecting
- coil
- sheet blank
- displacement
- space
- 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
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
PURPOSE: To enable accurate detection regardless of surrounding environments and object of detection, by opposedly providing displacement detecting parts having magnetic sensors at both sides of a sheet blank between opposedly provided magnetic field generating parts, and detecting the displacement by means of the deviation output.
CONSTITUTION: Excitation coils 1, 2 and a detecting coil 5 are housed in outer cases 7, 8, which are integrated by means of a joining member 9. The space between the excitation coil 1 and the detecting coil 5 should be a vacant area for feeding sheet blanks. That is, while sheet blank not illustrated is not supplied in the detecting space, the magnetic fields generated between the excitation coils 1, 2 are balanced, and the output of the detecting coil 5 is zero. When the sheet blank enters the detecting space, the magnetic flux generated from the excitation coil 1 is cut off. Since the magnetic fields are alternating magnetic fields, an output appears in the detecting coil 5. As a result, accurate detection is possible regardless of the environments and other conditions.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4562679A JPS55138601A (en) | 1979-04-14 | 1979-04-14 | Detector for breadth and breadthwise displacement of sheet blank |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4562679A JPS55138601A (en) | 1979-04-14 | 1979-04-14 | Detector for breadth and breadthwise displacement of sheet blank |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55138601A true JPS55138601A (en) | 1980-10-29 |
Family
ID=12724572
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4562679A Pending JPS55138601A (en) | 1979-04-14 | 1979-04-14 | Detector for breadth and breadthwise displacement of sheet blank |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55138601A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63139503U (en) * | 1987-03-05 | 1988-09-14 | ||
WO2021009825A1 (en) * | 2019-07-16 | 2021-01-21 | 株式会社ニレコ | Sensor component, sensor, and edge detection device |
-
1979
- 1979-04-14 JP JP4562679A patent/JPS55138601A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63139503U (en) * | 1987-03-05 | 1988-09-14 | ||
WO2021009825A1 (en) * | 2019-07-16 | 2021-01-21 | 株式会社ニレコ | Sensor component, sensor, and edge detection device |
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