JPS57141508A - Detector for turning position - Google Patents
Detector for turning positionInfo
- Publication number
- JPS57141508A JPS57141508A JP2717081A JP2717081A JPS57141508A JP S57141508 A JPS57141508 A JP S57141508A JP 2717081 A JP2717081 A JP 2717081A JP 2717081 A JP2717081 A JP 2717081A JP S57141508 A JPS57141508 A JP S57141508A
- Authority
- JP
- Japan
- Prior art keywords
- wheels
- turning
- positions
- switches
- operated
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
Abstract
PURPOSE:To detect the turning position of a turning member in an easy and accurate way, by providing plural cams which are turned by the rotation of the turning member plus the switches which are operated by the displacement of the circumference surface of the cam. CONSTITUTION:For a VTR loading device, the worm wheels 42 and 43 are rotated counterclockwise and clockwise respectively when a motor 39 is rotated by an operation for reproduction. As a result, the loading arms 31 and 32 are rotated counterclockwise and clockwise respectively. Thus a tape is led out of a cassette to be wound around a head drum. The turning positions of the wheels 42 and 43 are detected via the switches 78 and 79 which are operated by the arms 70 and 71 having the rollers 76 and 77 which are allowed to press-contact via the springs 74 and 75 with the cams 46 and 47 provided to the wheels 42 and 43 concentrically in one body. The motor 39 is stopped in accordance with the positions of the wheels 42 and 43. Thus the positions of the turning members 42 and 43 are detected in an easy and accurate way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2717081A JPS57141508A (en) | 1981-02-26 | 1981-02-26 | Detector for turning position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2717081A JPS57141508A (en) | 1981-02-26 | 1981-02-26 | Detector for turning position |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56022131A Division JPS57135476A (en) | 1981-02-16 | 1981-02-16 | Loading device of vtr |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57141508A true JPS57141508A (en) | 1982-09-01 |
Family
ID=12213580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2717081A Pending JPS57141508A (en) | 1981-02-26 | 1981-02-26 | Detector for turning position |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57141508A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111721251A (en) * | 2020-06-16 | 2020-09-29 | 无锡踏达机电科技有限公司 | Building engineering construction is with straightness detection device that hangs down |
-
1981
- 1981-02-26 JP JP2717081A patent/JPS57141508A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111721251A (en) * | 2020-06-16 | 2020-09-29 | 无锡踏达机电科技有限公司 | Building engineering construction is with straightness detection device that hangs down |
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