KR920002428Y1 - For vtr tape tension control device - Google Patents
For vtr tape tension control deviceInfo
- Publication number
- KR920002428Y1 KR920002428Y1 KR2019880010960U KR880010960U KR920002428Y1 KR 920002428 Y1 KR920002428 Y1 KR 920002428Y1 KR 2019880010960 U KR2019880010960 U KR 2019880010960U KR 880010960 U KR880010960 U KR 880010960U KR 920002428 Y1 KR920002428 Y1 KR 920002428Y1
- Authority
- KR
- South Korea
- Prior art keywords
- tension
- tape
- control device
- substrate
- reel table
- 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
- G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
- G11B15/43—Control or regulation of mechanical tension of record carrier, e.g. 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
- G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
- G11B15/26—Driving record carriers by members acting directly or indirectly thereon
- G11B15/32—Driving record carriers by members acting directly or indirectly thereon through the reels or cores on to which the record carrier is wound
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/90—Tape-like record carriers
Landscapes
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
- Handling Of Continuous Sheets Of Paper (AREA)
Abstract
내용 없음.No content.
Description
제 1 도는 본 고안의 전체분해 사시도.1 is an exploded perspective view of the present invention.
제 2 도는 본 고안의 조립평면도.2 is a plan view of the assembly of the present invention.
제 3 도는 본 고안의 요부 확대 평면도.3 is an enlarged plan view of the main portion of the present invention.
제 4 도는 본 고안의 작동상태 예시 평면도.4 is a plan view illustrating an operating state of the present invention.
제 5 도는 본 고안의 동작원리 개략도.5 is a schematic view of the operation principle of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
2 : 릴테이블 3 : 기판상2: reel table 3: on substrate
4 : 텐션포스트 5 : 텐션암4: tension post 5: tension arm
6 : 축핀 7 : 스프링6: shaft pin 7: spring
8 : 고정대 9 : 램프8: holder 9: lamp
A : 모아레무늬주척 B : 모아레무늬단척A: Moire Pattern Short B: Moire Pattern Short
C : 감지기 D : 프리앰프C: Detector D: Preamp
E : 모아레무늬E: Moire Pattern
본 고안은 비디오 테이프 레코더의 테이프 텐션조절 장치에 관한 것으로서, 특히 모아레(Mohre), 무늬 엔코더(Encoder)를 이용하여 테이프 텐션을 미세하게 조절할 수 있게 한 비디오 테이프레코더의 테이프 텐션조절 장치에 관한 것이다.The present invention relates to a tape tension control device of a video tape recorder, and more particularly, to a tape tension control device of a video tape recorder that enables fine adjustment of tape tension by using a moire and a pattern encoder.
종래의 통상적인 테이프 텐션조절 장치를 보면 모두가 스프링과 텐션밴드 및 전달간등의 조합으로 구성되어 테이프의 텐션장력에 따라 텐션암이 동작되어 스프링과 전달간을 당기거나 밀어주어 릴테이블의 회동력을 제어하게 하여 테이프의 텐션을 조절할 수 있게 한 것이 있었으나, 이와 같은 종래의 방법들은 모두가 구조적인 운동에 의해서 테이프의 텐션을 조절하게 되어 있으므로, 미세하게 조절이 불가능하고, 릴테이블의 회동력의 제어도 정확히 할 수 없었던 것이다.In the conventional tape tension adjusting device, all are composed of a combination of a spring, a tension band, and a transmission, and a tension arm is operated according to the tension tension of the tape to pull or push the spring and the transmission to rotate the reel table. There was a thing that can control the tension of the tape by controlling the, but the conventional methods such as all are to adjust the tension of the tape by the structural movement, fine adjustment is impossible, and the rotational force of the reel table You couldn't control it exactly.
본 고안은 상기와 같은 종래의 문제점을 보완하고져, 축핀을 중심으로 회전하는 텐션암과 기판상에 형성된 모아레무늬의 주척과 단척이 겹쳐 생기는 모아레무늬의 변화량에 따른 엔코더를 이용하여, 자동으로 릴테이블을 제어해주어 테이프 텐션을 조절할 수 있게 된 것으로서, 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.The present invention compensates for the above-mentioned conventional problems, and automatically uses a tension table that rotates around an axis pin and an encoder according to the amount of change of the moire pattern formed by overlapping the main moire and the short moire pattern formed on the substrate. By controlling the tape tension can be adjusted, described in detail by the accompanying drawings as follows.
기판상(3)의 릴테이블(2)측면에 텐션포스트(4)가 돌출형성된 텐션암(5)을 축핀(6)으로 회동가능케 축설하여 테이프의 텐션을 조절할 수 있게 된 것에 있어서, 텐션암(5)의 끝단과 스프링(7)으로 연결되어 측면에 고정된 고정대(8)의 선단하면에 램프(9)를 설치하고, 이 램프(9)의 하측 위치로 텐션암(5)에는 투명으로 된 모아레무늬주척(A)을 형성시켰고, 이 하측 기판상(3)에는 모아레무늬단척(B)을 약간 경사지게 형성하여, 이들과 직선상으로 일치되게 기판(3)의 하부면에는 감지기(C)를 설치하여, 프리앰프(D)를 통해서 릴테이블(2)과 연결 구성시켜된 것이다.The tension arm 5 having the tension post 4 protruding from the reel table 2 on the substrate 3 can be pivoted with the shaft pin 6 to adjust the tension of the tape. The lamp 9 is installed at the distal end of the fixing stand 8 which is connected to the end of 5) and the spring 7 and is fixed to the side, and the lower side of the lamp 9 is transparent to the tension arm 5. Moiré pattern casting (A) was formed, and the moiré pattern shorting (B) was slightly inclined on the lower substrate (3), and the sensor (C) was placed on the lower surface of the substrate (3) so as to be linearly aligned with them. It is provided and connected to the reel table 2 via the preamp D.
이와 같이 조립구성된, 본 고안은 제 3 도에서 보는 바와 같이 텐션암(5)과 기판상(3)에 형성된 모아레무늬주척(A)과 단척(B)이 교차하면서 생기는 화살표 모양의 모아레무늬(E)가 형성되어지도록 구성된 것이다.As shown in FIG. 3, the present invention, assembled as described above, has an arrow-shaped moiré pattern (E) formed by the intersection of the moiré pattern caster (A) and the shorter portion (B) formed on the tension arm (5) and the substrate (3). ) Is configured to be formed.
이와 같이 구성된 본 고안의 작용효과를 상세히 설명하면 다음과 같다.Referring to the effect of the present invention configured in this way in detail as follows.
테이프(T)의 이송력이 캡스턴 모우터(M)의 회전력이 변화하는 등의 원인으로 인하여, 테이프(T)의 텐션이 증가하는 경우에는 텐션암(5)이 스프링(7)의 복원 탄성력을 이기고, 축핀(6)을 중심으로 시계방향으로 제 4 도에서 보는 바와 같이 회전함에 따라 움직이지 않는 기판상(3)의 모아레무늬 단척(B)과 유동하는 텐션암(5)에 형성된 모아레무늬 주척(A)이 교차되면서 상측에서는 램프(9)가 빛을 투과시켜 주게 되므로, 모아레무늬(E)가 하측으로 움직이면서 빛이 투과되는 것을 감지기(C)가 감지하여 제 5 도에서 보는 바와 같이 프리앰프(D)로 보내게 되면 여기서 릴테이블(2)의 공급측 릴을 제어하여 회전속도를 증가시켜 주면 이에 따라 테이프(T)의 텐션이 감소하여 일정한 텐션을 유지하게 된다.When the tension of the tape T increases due to a change in the rotational force of the capstan motor M due to the feed force of the tape T, the tension arm 5 may restore the restoring elastic force of the spring 7. Moiré pattern caster formed on the tension arm 5 and the moiré pattern short B on the substrate 3 which does not move as it rotates clockwise about the shaft pin 6 as shown in FIG. Since (A) is crossed, the lamp 9 transmits light from the upper side, so that the sensor C detects that the light is transmitted while the moire pattern E moves downward, and as shown in FIG. If it is sent to (D) to control the supply side reel of the reel table (2) to increase the rotation speed accordingly the tension of the tape (T) is reduced accordingly to maintain a constant tension.
반대로 주행중인 테이프(T)의 텐션이 감소하는 경우에는 텐션암(5)이 시계반대 방향으로 회전하게 되면서 모아레무늬주척(A)과 단척(B)이 교차되면서 모아레무늬(E)가 상측으로 움직이게 된다. 이때 투과되는 광량을 하측의 감지기(C)가 감지하여 전기한 방법과 같이 프리앰프(D)로 보내게 되면, 여기서 릴테이블(2)의 공급측릴의 회전력을 감소시켜 줌에 따라 테이프(T) 의 텐션이 증가하여 일정한 텐션을 유지하게 되는 것이다.On the contrary, when the tension of the running tape T decreases, the tension arm 5 rotates counterclockwise while the moire pattern caster A and the shorter B cross each other so that the moire pattern E moves upward. do. At this time, if the amount of light transmitted is sent to the preamplifier D by the sensor C on the lower side and electric method, the rotational force of the supply side reel of the reel table 2 is reduced, thereby reducing the tape T. Tension is increased to maintain a constant tension.
이상과 같이 본 고안은 테이프(T)의 텐션을 모아레무늬(E)의 변위량에 따라 투과하는 광량을 감지하여된 모아레무늬 엔코더를 이용하여 릴테이블(2)의 회전력을 제어하여 주행중인 테이프(T)의 텐션을 조절하여 주게 되므로, 종래의 구조적인 기능으로서, 조절하는 것보다 훨씬 미세하게 테이프의 텐션을 조절할 수 있을 뿐 아니라, 릴테이블의 회동력을 정확히 제어조절할 수 있는 효과를 얻게한 것이다.As described above, the present invention controls the rotational force of the reel table 2 by using the moiré pattern encoder which senses the amount of light transmitted through the tension of the tape T according to the displacement amount of the moire pattern E. By adjusting the tension of), as a conventional structural function, not only can adjust the tension of the tape much finer than adjusting, but also to obtain the effect of precisely controlling the rotational force of the reel table.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019880010960U KR920002428Y1 (en) | 1989-03-14 | 1989-03-14 | For vtr tape tension control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019880010960U KR920002428Y1 (en) | 1989-03-14 | 1989-03-14 | For vtr tape tension control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR900003594U KR900003594U (en) | 1990-02-08 |
| KR920002428Y1 true KR920002428Y1 (en) | 1992-04-13 |
Family
ID=19277198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019880010960U KR920002428Y1 (en) | 1989-03-14 | 1989-03-14 | For vtr tape tension control device |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR920002428Y1 (en) |
-
1989
- 1989-03-14 KR KR2019880010960U patent/KR920002428Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR900003594U (en) | 1990-02-08 |
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| Date | Code | Title | Description |
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| A201 | Request for examination | ||
| E701 | Decision to grant or registration of patent right | ||
| REGI | Registration of establishment | ||
| FPAY | Annual fee payment |
Payment date: 19990329 Year of fee payment: 8 |
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| LAPS | Lapse due to unpaid annual fee |