KR840001328Y1 - Automatic stopping device - Google Patents
Automatic stopping device Download PDFInfo
- Publication number
- KR840001328Y1 KR840001328Y1 KR2019810006943U KR810006943U KR840001328Y1 KR 840001328 Y1 KR840001328 Y1 KR 840001328Y1 KR 2019810006943 U KR2019810006943 U KR 2019810006943U KR 810006943 U KR810006943 U KR 810006943U KR 840001328 Y1 KR840001328 Y1 KR 840001328Y1
- Authority
- KR
- South Korea
- Prior art keywords
- tape
- reel
- guide groove
- motor
- pinch roller
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
- G11B15/05—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container
- G11B15/093—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing driving condition of record carrier, e.g. travel, tape tension
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
- G11B15/05—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container
- G11B15/06—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing auxiliary features on record carriers or containers, e.g. to stop machine near the end of a tape
- G11B15/08—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing auxiliary features on record carriers or containers, e.g. to stop machine near the end of a tape by photoelectric sensing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
- G11B15/22—Stopping means
Landscapes
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
Abstract
내용 없음.No content.
Description
제1도는 본 고안의 검출장치.1 is a detection device of the present invention.
제2도는 종래의 검출장치.2 is a conventional detection apparatus.
제3도는 본 고안이 설치된 VTR의 테이프 주행도.3 is a tape running diagram of the VTR in which the present invention is installed.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 안내홈 2 : 포토트랜지스터1: guide home 2: phototransistor
3 : 발광소자 4' : 모우터측3: light emitting element 4 ': motor side
5 : 핀치로울러 11 : 카세트테이프5: pinch roller 11: cassette tape
본 고안은 테이프 이송중에 테이프가 회로적인 고장 또는 기구적인 고장으로 인하여 정상적으로 이송되지 않을 때 테이프가 늘어지면서 엉키어 회전축이나 로울러에 감기게 되는 것을 방지하기 위하여 포토 트랜지스터를 이용하여 테이프가 늘어지는 것을 즉시 감지하는 테이프 늘어짐 검출장치에 관한 것이다.The present invention immediately prevents the tape from stretching by using a phototransistor to prevent the tape from tangling and being caught on the rotating shaft or roller when the tape is not transferred normally due to a circuit failure or mechanical failure. It relates to a tape droop detection device for sensing.
종래에는 테이프가 늘어지는 것을 즉시 감지하지 못하여 늘어진 테이프가 엉키면서 회전하는 축이나 로울러(roller)에 감기게 되고 따라서 테이프 및 다른 부품들에도 손상을 끼치게 되는 결점이 있었던 것이다.Conventionally, there was a drawback that the tape was not immediately sensed to hang and the tape was tangled and wound onto a rotating shaft or roller, thus damaging the tape and other components.
이를 제2도에 의하여 종래의 동작을 설명하면 테이크업릴(Take up reel)(7)측에 마그네트(보통 8극이나 16극)가 내설되어 있고 그 하측에 검출소자가 설치되어 있어 어느 일정한 시간이상 마그네트가 회전을 중지하면 이를 감지하여 전원을 차단시켜서 테이프와 기타 부품들을 보호하도록 되어 있는 것이다.Referring to FIG. 2, a conventional operation is described. A magnet (usually 8 or 16 poles) is built in the take up reel 7 side, and a detection element is provided on the lower side thereof. When the magnet stops rotating, it detects and cuts off the power to protect the tape and other parts.
그러나 이와같은 방식은 검출소자를 작동시키는 마그네트등이 테이크업 릴(7)밑에 장착되어야 하며 또한 마그네트의 극수에 따라 감지시간이 결정되며 대체로 2초 이상이 경과한 후 감지되는 것이다.However, in this method, a magnet for operating the detection element should be mounted under the take-up reel 7, and the detection time is determined according to the number of poles of the magnet, which is generally detected after 2 seconds or more have elapsed.
따라서 그동안 늘어진 테이프가 서로 엉키면서 테이프뿐만 아니라 부품의 손실을 초래하게 되고 또한 마그네트 부품의 추가 부담 등의 결점이 있었다.Therefore, the tape has been tangled with each other, causing not only the tape but also the loss of parts, and the additional burden of magnet parts.
본 고안은 이러한 점을 감안하여 캡스탄 축과 핀치롤라 후방에 테이프 진행 속도를 고려하여 약 0.5초동안 감기지 못한 테이프가 모일수 있도록 안내홈을 설치하고 테이프가 모이면 빛이 차단되도록 안내홈 양측에 발광 소자와 포토트랜지스터를 설치하여 테이프가 늘어지면 즉시 감지할 수 있도록 하므로 종래의 결점을 제거하도록 안출한 것으로, 이를 첨부한 도면에 의하여 상세히 설명하면 다음과 같다.In consideration of this, the present invention installs guide grooves so that the tape which cannot be wound for about 0.5 seconds is collected in consideration of the tape traveling speed behind the capstan shaft and the pinch roller. The light emitting device and the phototransistor are installed in the device so that the tape can be immediately detected when the tape is stretched. Thus, the conventional drawback is eliminated.
제3도에 도시한 바와같이 써프라이릴(7')이 테이프가 테이크업 릴(7)에 감기도록 구성된 통상의 테이프 주행장치중의 핀치로울러(5)와 모우터측(4')후방에 이들의 사이를 통과하여 나오는 테이프가 늘어지면 모일수 있도록 안내홈(1)을 설치하고 안내홈(1)의 양측에 각각 발광소자(3)와 포토트랜지스터(2)를 연결시켜 테이프(8)가 늘어져서 안내홈(1)에 모이면 빛이 차단되어 포토 트랜지스터(2)가 OFF되도록 하고 제1도와 같이 발광소자(3)는 항상 발광되도록 전원을 연결하고 포토 트랜지스터(2)가 도통되면 전원이 연결되고 빛이 차단되면 전원이 차단되어 테이프 (8)가 이송을 중지하도록 구성한다.As shown in FIG. 3, the supply reel 7 'is placed behind the pinch roller 5 and the motor side 4' in a conventional tape traveling device configured to wind the tape to the take-up reel 7. Install the guide grooves (1) so as to gather when the tape is passed through the gap between the light emitting element (3) and the phototransistor (2) connected to each side of the guide groove (1), the tape (8) is stretched When the light is blocked in the guide groove 1, the light is cut off so that the photo transistor 2 is turned off. As shown in FIG. 1, the light emitting device 3 is connected to a power source so that the light is always emitted. When the light is cut off, the power is cut off and the tape 8 is configured to stop the transfer.
미성명부호 4는 모우터, 6은 테이프 가이드, 7'는 써프라이릴, 9는 구동풀리, 10은 고무벨트, 11은 테이프카세트, 12는 드럼, 13은 헤드이다.4 is a motor, 6 is a tape guide, 7 'is a primary reel, 9 is a driving pulley, 10 is a rubber belt, 11 is a tape cassette, 12 is a drum and 13 is a head.
이와같이 구성된 본 고안의 작용효과를 설명하면 다음과 같다.Referring to the effect of the present invention configured as described above are as follows.
최초에 동작 스위치를 ON하면 전원이 인가되어 테이프가 모우터축(4')과 핀치로울러(5)를 통하여 테이크업 릴(7)에 감기게 되는데 테이프의 주행중에 모우터 (4)의 고장이나 고물벨트(10)의 불량, 또는 회전물 사이에 이물질이 끼어 테이크업 릴(7)이 정상 회전속도로 테이프를 감아주지 못하게 되면 핀치로울러(5)와 모우터툭(4')사이를 통하면서 모우터축(4')이 회전력에 의하여 테이프가 이송되므로 로울러(5)근방에 테이프가 늘어지는 경우가 많으므로 핀치 로울러(5)후방에 테이프가 늘어지면 모이드록된 안내홈(1)에 늘어진 테이프가 모이게 되고 약 0.5초 정도의 시간동안 테이프가 늘어지면 안내홈(1)에 모인 테이프가 발광소자(3)로 부터의 빛을 차단하여 포토 트랜지스터(2)가 오프되는 것이다. 따라서 제1도에서 포토 트랜지스터(2)의 오프로 인하여 전원이 차단되고 모우터(4)가 회전을 중지하게 된다. 즉 테이프가 주행중에 기구적인 고장 또는 회로적인 고장등으로 인하여 테이크업 릴(7)이 제대로 테이프를 감아주지 못하여 내부에서 늘어지게 되면 제1도에 도시한 회로에 의하여 모우터축(4')을 돌리는 캡스턴 모터(도시생략함)를 정지시켜 테이프 이송을 즉시 중단시키므로 테이프 및 다른 부품들의 손상을 방지할 수가 있는 것이다.When the operation switch is first turned on, the power is applied and the tape is wound on the take-up reel 7 through the motor shaft 4 'and the pinch roller 5, and the motor 4 is broken or stuck while the tape is running. If the take-up reel 7 is unable to wind the tape at a normal rotational speed due to a defect of the belt 10 or a foreign matter stuck between the rotating parts, the motor shaft passes between the pinch roller 5 and the motor tuk 4 '. Since the tape is conveyed by the rotational force (4 '), the tape is often drawn near the roller (5), so when the tape is stretched behind the pinch roller (5), the tape is collected in the guide-locked guide groove (1). When the tape is stretched for about 0.5 seconds, the tape gathered in the guide groove 1 blocks the light from the light emitting element 3 so that the photo transistor 2 is turned off. Accordingly, in FIG. 1, the power is cut off due to the off of the photo transistor 2, and the motor 4 stops rotating. That is, if the take-up reel 7 fails to wind the tape properly due to a mechanical failure or a circuit failure while the tape is running, and the tape is stretched inside, the motor shaft 4 'is turned by the circuit shown in FIG. Stopping the capstan motor (not shown) stops the tape transfer immediately, preventing damage to the tape and other parts.
이와같이 본 고안은 테이프의 늘어짐을 즉시 감지하여 부품의 손상을 방지하도록 되어 있을 뿐만 아니라 검출 장치가 매우 간단하면서 원가면에서도 훨씬 절감되는 등의 효과가 있는 것이다.In this way, the present invention is not only to detect the sagging of the tape immediately to prevent damage to the parts, but also the effect of the detection device is very simple and much lower in cost.
특히 본 고안은 정밀도를 요하는 VTR 등에 사용하면 매우 적합한 고안인 것이다.In particular, the present invention is a very suitable design when used in VTR and the like requiring precision.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019810006943U KR840001328Y1 (en) | 1981-10-14 | 1981-10-14 | Automatic stopping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019810006943U KR840001328Y1 (en) | 1981-10-14 | 1981-10-14 | Automatic stopping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR840001328Y1 true KR840001328Y1 (en) | 1984-07-30 |
Family
ID=19223061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019810006943U KR840001328Y1 (en) | 1981-10-14 | 1981-10-14 | Automatic stopping device |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR840001328Y1 (en) |
-
1981
- 1981-10-14 KR KR2019810006943U patent/KR840001328Y1/en not_active IP Right Cessation
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