KR900003674Y1 - Pinch roller driving apparatus of vtr - Google Patents
Pinch roller driving apparatus of vtr Download PDFInfo
- Publication number
- KR900003674Y1 KR900003674Y1 KR2019870007510U KR870007510U KR900003674Y1 KR 900003674 Y1 KR900003674 Y1 KR 900003674Y1 KR 2019870007510 U KR2019870007510 U KR 2019870007510U KR 870007510 U KR870007510 U KR 870007510U KR 900003674 Y1 KR900003674 Y1 KR 900003674Y1
- Authority
- KR
- South Korea
- Prior art keywords
- pinch roller
- cam
- pinch
- arm
- pin
- Prior art date
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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
- G11B15/26—Driving record carriers by members acting directly or indirectly thereon
- G11B15/28—Driving record carriers by members acting directly or indirectly thereon through rollers driving by frictional contact with the record carrier, e.g. capstan; Multiple arrangements of capstans or drums coupled to means for controlling the speed of the drive; Multiple capstan systems alternately engageable with record carrier to provide reversal
- G11B15/29—Driving record carriers by members acting directly or indirectly thereon through rollers driving by frictional contact with the record carrier, e.g. capstan; Multiple arrangements of capstans or drums coupled to means for controlling the speed of the drive; Multiple capstan systems alternately engageable with record carrier to provide reversal through pinch-rollers or tape rolls
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- Transmission Devices (AREA)
Abstract
내용 없음.No content.
Description
제1도는 핀치로울러가 캡스턴축에 밀착되기 직전의 본 고안 평면도.1 is a plan view of the present invention just before the pinch roller is in close contact with the capstan shaft.
제2도는 핀치로울러가 캡스턴축에 밀착된 상태의 본 고안 평면도.2 is a plan view of the present invention with the pinch roller is in close contact with the capstan shaft.
제3도는 핀치로울러가 원위치로 이동된 상태의 본 고안 평면도.3 is a plan view of the present invention with the pinch roller moved to its original position.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 구동기어 2 : 캠1: Drive Gear 2: Cam
2' : 캠곡면부 4 : 링크2 ': cam curved portion 4: link
4a : 누름부 5 : 로울러4a: pressing part 5: roller
7 : 인장스프링 8 : 핀치아암7: tension spring 8: pinch arm
9 : 누름핀 11 : 작동핀9: push pin 11: operation pin
13 : 핀치로울러 14, 14' : 가이드로울러13: Pinch Roller 14, 14 ': Guide Roller
10 : 비틀림스프링10: torsion spring
본 고안은 브이티알(VTR) 또는 개수방식레코오더(DAT)등과 같은 자기기록 재생기에 있어서, 핀치로울러를 캡스턴축에 말착시켜 테이프를 눌러주도록 하는 핀치로울러 구동장치에 대한 것이다.The present invention relates to a pinch roller driving device for pressing a tape by attaching a pinch roller to a capstan shaft in a magnetic recording player such as a VTR or a modified recorder (DAT).
종래의 브이티알에서는 핀치로울러를 동작시켜주는 캠이 핀치로울러의 정 반대편에 위치하고 있기 때문에 이들 사이의 거리가 멀어 캠의 구동력을 핀치로울러에 전달시켜 주기 위해서는 다수의 링크와 스프링 등이 필요하게되어 부품 및 공수가 증가되므로 원가가 상승되고, 또 기구적으로 복잡하게 되어 신뢰성도 저하되는 등의 결점이 있었다.In the conventional VTIAL, the cam for operating the pinch roller is located on the opposite side of the pinch roller, so the distance between them is large, so that a large number of links and springs are needed to transmit the driving force of the cam to the pinch roller. And the increase of the man-hours, the cost increases, and mechanically complicated, the reliability also falls.
본 고안은 이러한 점들을 해결하기 위해 캠구동기구를 캡스턴축에 근접되게 착설하고 슬라이드판에 의해 회동하는 핀치아암은 비틀림 스프링으로 탄력설치하여 원위치로 복귀될 수 있게 하며, 캠에 의해 되는 링크는 인장스프링으로 일측이 당겨지게하여 이 인장스프링의 수축력에 의해 핀치로울러를 캡스턴축에 밀착되도록 고안한 것으로 첨부 도면에 의거 상술하면 다음과 같다.In order to solve these problems, the present invention installs the cam drive mechanism close to the capstan shaft, and the pinch arm pivoted by the slide plate is elastically installed with a torsion spring so that it can be returned to its original position. One side is pulled by a spring and the pinch roller is designed to be in close contact with the capstan shaft by the contracting force of the tension spring.
입측면에 캠곡면부(2')가 형성된 캠(2)를 구동기어(1)와 동축(3)으로 회전하게 착설하고, 이 캠(2)의 외주면과 접촉되는 핀(5)을 일 끝에 부착한 링크(4)를 축(6)으로 회동되게 고정하여 일끝에 걸어준 인장스프링(7)의 수축력에 의해 핀(5)이 캠(2)의 원호면(2a)에 밀착되게 하여주고, 링크(4)의 다른 끝 누름부(4a)는, 축(6a)으로 회동되게 착설한 핀치아암(8)의 일측에 부착한 눌림편(9)을 눌러줄 수 있도록 하며 축(6a)에는 비틀림스프링(10)을 끼워 그 일끝을 핀치아암(8)에 걸어주고, 그 측방에는 작동핀(11)을 부착하여 슬라이드판(12)의 일측에 다단으로 형성된 가이드면(12')과 접촉하게 하며, 또 핀치아암(8)의 일끝에는 핀치로울러(13)를, 다른 끝에는 가이드 로울러(14)(14')를 각각 착설하여서된 것이다.The cam 2 with the cam curved surface portion 2 'formed on the mouth side is rotatably mounted in coaxial with the drive gear 1, and the pin 5 contacting the outer circumferential surface of the cam 2 is at one end. The attached link 4 is pivotally fixed to the shaft 6 so that the pin 5 is brought into close contact with the circular arc surface 2a of the cam 2 by the contracting force of the tension spring 7 which is hung at one end thereof. The other end pressing portion 4a of the link 4 allows the pressing piece 9 attached to one side of the pinch arm 8, which is installed to be rotated by the shaft 6a, to be pressed, and to the shaft 6a. Insert one end of the spring (10) to the pinch arm (8), attaching the operation pin (11) on its side to contact the guide surface 12 'formed in multiple stages on one side of the slide plate (12) In addition, the pinch roller 13 is installed at one end of the pinch arm 8, and the guide rollers 14 and 14 'are installed at the other end.
미설명 부호 ＂15＂는 캡스턴축이다.Unexplained code | symbol 15 is a capstan shaft.
이와 같이된 본 고안의 작동상태를 설명하면 다음과 같다.Referring to the operating state of the present invention as described above is as follows.
제3도는 테이프가 언로오딩, 또는 로오딩되기전 상태에서의 본 고안 평면도로서 이때 슬라이드판(12)은 좌측으로 이동되어 그 좌측끝 부분과 핀치아암(8)에 부착된 작동핀(11)은 떨어져 있게되고, 또 핀치아암(8)은 비틀림스프링(10)의 반발력에 의해 반시계방향으로 회동되어 있으며, 링크(4)의 일끝에 착설된 핀(5)은 캠(2)의 원호면(2a)에 접촉된 상태로 있게 된다.3 is a plan view of the present invention in the state before the tape is unloaded or unloaded, wherein the slide plate 12 is moved to the left side so that the left end portion and the operation pin 11 attached to the pinch arm 8 are The pinch arm 8 is rotated counterclockwise by the repulsive force of the torsion spring 10, and the pin 5 mounted at one end of the link 4 is an arc surface of the cam 2 ( It remains in contact with 2a).
이와 같은 상태에서 테이프가 로오딩되기 시작하면 슬라이드판(12)은 우측으로 이동되므로 작동핀(11)이 가이드면(12')에 의해 밀리게되어 핀치아암(8)이 축(6a)을 중심으로 하여 시계방향으로 회동되기 때문에 핀치로울러(13)와 그 양측의 가이드로울러(14)(14')가 동시에 제13도에서 보는 바와 같이 캡스턴축(15) 축으로 이동하게되고, 핀(5)은 캠(2)의 원호면(2a)에서 캠곡면부(2')축으로 이동하는 위치에 도달하게되며, 이때 레버(4)의 누름부(4a)는 눌림편(9)에 근접하게된다.In this state, when the tape starts to be loaded, the slide plate 12 is moved to the right, so that the operation pin 11 is pushed by the guide surface 12 'so that the pinch arm 8 is centered on the shaft 6a. Since the pinch roller 13 and the guide rollers 14 and 14 'on both sides move simultaneously to the capstan shaft 15 axis as shown in FIG. 13, the pin 5 Reaches a position moving from the circular arc surface 2a of the cam 2 to the cam curved surface portion 2 'axis, where the pressing portion 4a of the lever 4 is brought close to the pressing piece 9. .
이와 같은 작동이 계속되어 테이프의 로오딩이 완료되면 제2도에서 보는 바와 같이 핀치로울러(13)는 캡스턴축(15)에 접촉되는데, 이때 링크(4)에 착설된 핀(5)은 구동기어(1)와 함께 회전되는 캠(2)의 회전에 따라 그 원호면(2a)을 지나 캠곡면부(2')에 위치하게 되는데 이렇게 되면 캠곡면부(2')의 반경이 원호면(2a)보다 짧기 때문에 핀(5)이 원호면(2a)을 지나서 캠곡면부(2')에 도달하게되면 인장스프링(7)의 수축력에 의해 링크(4)가 축(6)을 중심으로 반시계방향으로 회동하게되어 그 타측끝 누름부(4a)는 핀치아암(8)에 부착된 눌림편(9)에 접촉되어 링크(4)가 더 이상 회전되지 못하게 되고 이에 따라 핀(5)은 캠곡면부(2')에 밀착되지 않고 일정간격(t) 만큼 떨어져 있게되므로 인장스프링(7)의 수축력은 핀(5)을 간격(t)만큼 더 당겨주고져 하기 때문에 이 수축력에 따른 텐션이 링크(4)의 누름부(4a)를 통해 눌림핀(9)에 전달되므로 핀치로울러(13)를 캡스턴축(15)에 더욱 탄력성있게 밀착시켜주게되는 것이다.When this operation is continued and the loading of the tape is completed, as shown in FIG. 2, the pinch roller 13 contacts the capstan shaft 15, wherein the pin 5 installed on the link 4 is the driving gear. In accordance with the rotation of the cam 2 rotated together with (1), it is positioned on the cam curved surface portion 2 'past the circular arc surface 2a. In this case, the radius of the cam curved surface portion 2' becomes the circular arc surface 2a. When the pin 5 reaches the cam curved portion 2 'past the arc surface 2a, the link 4 is counterclockwise about the axis 6 due to the contracting force of the tension spring 7. The other end pressing portion 4a is in contact with the pressing piece 9 attached to the pinch arm 8 so that the link 4 can no longer be rotated, and thus the pin 5 is cam-curved. Since the contracting force of the tension spring 7 is pulled further by the distance t, the contracting force of the tension spring 7 is not attached to the part 2 'and is separated by a predetermined distance t. Another is that the tension link is dropped to (4) enables a more resilient pinch roller 13, they are passed to push down the pin (9) through the pressing part (4a) to the capstan shaft 15 in close contact.
이러한 작용에 의해 핀치로울러를 캡스턴축에 탄력성 있게 밀착시켜주게되며, 테이프가 언로딩될 때에는 모든 작용이 반대로 진행되어 제3도와 같은 상태가 되는 본 고안은 핀치로울러를 동작시켜 주기 위한 캠구동기구를 핀치아암의 근접 위치에 설치하였기 때문에 핀치아암을 동작시켜주기위한 부품과 공수가 대폭 감소되고, 또 이에 따라 원가가 절감됨은 물론 특히 캠과 인장스프링의 수축력에 의해 핀치로울러의 누르는 힘을 향상시켜주었으며, 기구적으로 단순화되어 동작시의 신뢰성도 향상되는 등 매우 효과적인 고안이다.By this action, the pinch roller is brought into close contact with the capstan shaft elastically, and when the tape is unloaded, all the operations are reversed, and the present invention is in the state as shown in FIG. 3. The cam drive mechanism for operating the pinch roller is provided. Since the pinch arm is installed close to the pinch arm, the number of parts and maneuver for operating the pinch arm is greatly reduced, and the cost is reduced, and in particular, the force of the pinch roller is improved by the contraction force of the cam and the tension spring. It is a very effective design, which is simplified mechanically and improves reliability during operation.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019870007510U KR900003674Y1 (en) | 1987-05-15 | 1987-05-15 | Pinch roller driving apparatus of vtr |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019870007510U KR900003674Y1 (en) | 1987-05-15 | 1987-05-15 | Pinch roller driving apparatus of vtr |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR880022578U KR880022578U (en) | 1988-12-26 |
| KR900003674Y1 true KR900003674Y1 (en) | 1990-04-30 |
Family
ID=19262938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019870007510U KR900003674Y1 (en) | 1987-05-15 | 1987-05-15 | Pinch roller driving apparatus of vtr |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR900003674Y1 (en) |
-
1987
- 1987-05-15 KR KR2019870007510U patent/KR900003674Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR880022578U (en) | 1988-12-26 |
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