KR920000440Y1 - Pinch roller operating apparatus - Google Patents
Pinch roller operating apparatus Download PDFInfo
- Publication number
- KR920000440Y1 KR920000440Y1 KR2019880013666U KR880013666U KR920000440Y1 KR 920000440 Y1 KR920000440 Y1 KR 920000440Y1 KR 2019880013666 U KR2019880013666 U KR 2019880013666U KR 880013666 U KR880013666 U KR 880013666U KR 920000440 Y1 KR920000440 Y1 KR 920000440Y1
- Authority
- KR
- South Korea
- Prior art keywords
- cam plate
- ring gear
- cam
- pinch roller
- 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 본 고안의 사용상태 사시도.1 is a perspective view of the state of use of the present invention.
제2도는 본 고안의 결합상태 측단면도.Figure 2 is a side cross-sectional view of the coupling state of the present invention.
제3도(a)는 본 고안에 따른 작동에서 정지 모드시의 평면도, (b)는 본 고안에 따른 작동에서 플레이 모드시의 평면도.Figure 3 (a) is a plan view in the stop mode in the operation according to the present invention, (b) is a plan view in the play mode in the operation according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for the main parts of the drawings
1 : 캠플레이트 1a : 캠홈“A”1: Cam plate 1a: Cam groove "A"
1b : 캠홈“B” 1d : 스터드1b: Cam groove “B” 1d: Stud
2 : 링기어 2a : 핀“A”2: Ring gear 2a: Pin "A"
2b : 핀“B” 3 : 작동레버2b: Pin “B” 3: Operation lever
3a : 장공 3b : 스프링걸림돌기3a: Long hole 3b: Spring catching protrusion
4 : 스프링 5 : 힌지축4: spring 5: hinge shaft
6 : 하부핀치아암 7 : 하부핀치아암6: lower pinch arm 7: lower pinch arm
8 : 핀치아암부시 9 : 핀치로울러8: pinch arm bush 9: pinch roller
9a : 핀치아암핀 10 : 캡스탄축9a: pin tooth arm pin 10: capstan shaft
11 : 데크 12 : 스톱퍼11: deck 12: stopper
본 고안은 VHS-C 또는 VHS-Full 방식의 캠코더(CAM-CORDER)의 데크메카니즘 중 테이프주행계에 있어서 캡스탄축에 테이프를 압착시켜 이송하는 핀치로울러 (Pinch Roller)의 구동장치에 관한 것이다.The present invention relates to a drive device of a pinch roller that presses and feeds a tape to a capstan shaft in a tape driving system of a deck driving mechanism of a VHS-C or VHS-Full type camcorder (CAM-CORDER).
일반적으로 핀치로울러는 테이프주행 시스템에 의해 카세트로 부터 인출된 테이프 헤드드럼의 원주상에 밀착됨과 돈시에 플레이모드시 테이프를 캡스탄축에 압착시켜 테이프에 일정한 장력을 주어 테이프를 이송시키는 것으로 종래 핀치 로울러의 구동장치는 로오딩모우터의 동력을 받아 회전하는 캠기어에 형성된 캠홈의 곡율 반경 변화에 따라서 캠홈에 일단의 가이드핀이 삽입된 슬라이더를 구동시켜 핀치로울러에 압착력을 부여함으로써 덱크의 테이프 주행계가 복잡해져 부피가 커지는 단점이 있었다.In general, the pinch roller is fixed to the circumference of the tape head drum drawn out from the cassette by the tape driving system and the tape is fed to the capstan shaft in play mode to transfer the tape by giving a constant tension to the tape. The roller drive system drives the slider with the guide pin inserted in the cam groove according to the change in the radius of curvature of the cam groove formed on the rotating cam gear by the power of the rolling motor, thereby applying a pressing force to the pinch roller. The system was complicated and bulky.
본 고안은 이러한 문제점을 해결하기 위하여 링기어에 의하여 로딩되는 테이프 주행계에서 링기어 일측 저면에 핀을 가공하고 상기 링기어의 회전구동에 의하여 캠운동하면서 핀치로울러에 구동력을 부여하는 캠플레이트와 상기 캠플레이트에 결합되어 직선운동하면서 링기어의 회전력을 하부 핀치아암에 전달하여 핀치로울러를 캡스탄축에 압착시켜주는 작동레버를 구비하므로써 데크의 부피를 줄여 캠코더의 소형화를 기하고자 하는데 목적이 있다.In order to solve this problem, the present invention processes a pin on the bottom surface of one side of a ring gear in a tape traveling system loaded by a ring gear, and a cam plate for imparting a driving force to the pinch roller while cam motioning by rotation of the ring gear. It is aimed at miniaturizing the camcorder by reducing the deck volume by providing an actuating lever that is coupled to the cam plate and transmits the rotational force of the ring gear to the lower pinch arm while pressing the pinch roller to the capstan shaft.
이하 첨부된 도면에 의하여 본 고안의 실시예를 상세히 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
제1도에 도시된 바와 같이 테이프를 로오딩 시키는 링기어(2) 저면 일측에 핀“A”“B”(2a)(2b)을 고착하고 상기 링기어의 회전시 핀 “A”“B”와 맞물려 회전구동이 될 수 있도록 캠홈“A”“B”(1a)(1b)가 형성된 캠플레이트(1)를 데크(11 )상에 캠플레이트핀(1c)으로 고정한다.As shown in FIG. 1, pins “A” “B” (2a) (2b) are fixed to one side of the bottom surface of the ring gear 2 for loading the tape, and the pins “A” “B” when the ring gear is rotated. The cam plate 1 on which the cam groove “A” “B” (1a) 1b is formed is fixed on the deck 11 with the cam plate pin 1c so as to be rotated in engagement with the.
또한 캠플레이트의 편심위치에 캠플레이트스터드(1d)를 조립하여 여기에 작동레버(3)를 결합한다.In addition, the cam plate stud 1d is assembled in the eccentric position of the cam plate, and the operation lever 3 is coupled thereto.
그리고, 데크(11)일정 지점에 고정시킨 핀치 아암부시(8)에는 상부핀치아암 (7)과 하부핀치아암(6)이회전되지 않게 견고하게 결합한 후 하부 핀치아암(6)의 일단을 작동레버(3)의 일측 끝에 형성된 장공(3a)에서 힌지축(5)으로 결합하여 상기 작동레버(3)가 움직이면서 캠플레이트(1)의 회전에 따라 하부핀치아암(6)을 연동할 수 있도록 하는데 이때 작동레버(3)의 일정부위에서 하향돌설된 스프링걸림돌기(3b)에 스프링(4)을 걸고 스프링의 한쪽은 작동레버(3)의 장공(3a) 내에 힌지축(5)에 결합하여 작동레버와 하부핀치아암(6)이 탄력적으로 연동되도록 한다.Then, the upper pinch arm 7 and the lower pinch arm 6 are firmly coupled to the pinch arm bush 8 fixed at a predetermined point of the deck 11 so that one end of the lower pinch arm 6 is operated. In the long hole (3a) formed at one end of the (3) is coupled to the hinge shaft (5) to move the operating lever (3) to move the lower pinch arm (6) in accordance with the rotation of the cam plate (1) Engage the spring (4) to the spring engaging projection (3b) protruding downward from a certain portion of the operating lever (3) and one side of the spring is coupled to the hinge shaft (5) in the long hole (3a) of the operating lever (3) And the lower pinch arm 6 to elastically interlock.
또 상부핀치아암(7)의 일측 끝단에는 핀치아암핀(9a)을 고정시키고 여기에 핀치로울러(9)가 회전할 수 있도록 조립하며 덱크상의 캠플레이트(1)의 회전반경내에 캠플레이트(1)가 어느 정도 회전한 후 더 이상 회전되지 못하도록 하는 스톱퍼(12)를 설치한다.In addition, the pinch arm pin 9a is fixed to one end of the upper pinch arm 7 and assembled so that the pinch roller 9 can rotate therein, and the cam plate 1 within the rotation radius of the cam plate 1 on the deck. After the rotation to some extent install a stopper 12 to prevent the rotation anymore.
이와같은 구성을 갖는 본 고안의 작용은 정지모드와 플레이모드에 따라 설명하면 먼저 제3도에 (a)와 같이 정지모드에서는 스톱퍼(12)에 의하여 캠플레이트(1)가 고정된 상태에서 캡스탄(10)과 핀치로울러(9)가 상호 이격되어 있고 링기어(2)의 정지에 따라 핀“A”(2a)가 캠플레이트(1)의 캠홈“A”(1a)끼워져 있는 상태를 유지하며 작동레버(3)의 일측 장공(3a) 앞쪽으로 힌지축(5)이 스프링(4)에 의해 당겨져 위치한다.The operation of the present invention having such a configuration will be described in accordance with the stop mode and the play mode. First, as shown in FIG. 3A, in the stop mode, the cam plate 1 is fixed by the stopper 12 in the capstan state. (10) and the pinch roller (9) are spaced apart from each other, and the pin "A" (2a) is held in the cam groove "A" (1a) of the cam plate (1) as the ring gear (2) stops. The hinge shaft 5 is pulled and positioned by the spring 4 toward one side of the long hole 3a of the operating lever 3.
이와같은 정지모드에서 플레이모드 전환은 링기어(2)의 회전구동에 의하여 이루어지는데 제3도(b)에 도시된 바와 같이 링기어(2)가 시계반대 방향으로 회전하면 정지모드시에 캠플레이트(1)의 캠홈“A”(1a)에 끼워져 있던 링기어의 핀“A”(2a)가 점차 이탈되며서 링기어의 화살표 회전방향을 따라 핀“B”(2b)가 캠플레이트의 캠홈“B”(1b)과 맞물리면서 캠홈벽을 밀게됨에 따라 캠플레이트(1) 자체가 시계방향으로 회전하게 되는데 이때 핀“A”(2a)가 캠홈“A”(1a)로부터 이탈됨과 동시에 핀“B” (2b)가 캠홈“B”(1b)로 슬라이드 되면서 핀“A”에서와 같은 방식으로 동작되므로 캠플레이트는 시계방향으로 충분한 회전이 이루어진다.In this stop mode, the play mode is switched by rotation of the ring gear 2. As shown in FIG. 3 (b), when the ring gear 2 rotates counterclockwise, the cam plate is stopped in the stop mode. The pin “A” (2a) of the ring gear inserted into the cam groove “A” (1a) of (1) is gradually released, and the pin “B” (2b) moves along the direction of rotation of the ring gear. As the cam groove wall is pushed while being engaged with B ”(1b), the cam plate 1 itself rotates clockwise. At this time, the pin“ A ”(2a) is released from the cam groove“ A ”(1a) and the pin“ B ” Since (2b) slides into the cam groove "B" (1b) and operates in the same manner as in the pin "A", the cam plate is sufficiently rotated clockwise.
이와같이 캠플레이트(1)가 회전됨에 따라 캠플레이트(1)에 편심되게 연결된 작동레버(3) 역시 캠플레이트 회전량만큼 당겨주게 되는데 작동레버의 장공내에 위치한 힌지축(5)을 작동레버 아래측에 탄설된 스프링(4)이 신장됨과 동시에 힌지축(5) 연결된 하부핀치아암(6)을 당겨줌으로써 하부핀치아암(6)이 핀치아암부시(8)를 중심으로 시계반대방향으로 회전함에 따라 상부핀치 아암(7)에 결합된 핀치로울러(9)가 스프링 (4)함에 의해 캡스탄축(10)에 압착되어 테이프에 장력을 부여하면서 테이프를 이송시키게 되는 것이다.As the cam plate 1 is rotated as described above, the actuating lever 3 eccentrically connected to the cam plate 1 is also pulled by the cam plate rotation amount, and the hinge shaft 5 located in the long hole of the actuating lever is positioned below the actuating lever. The upper pinch as the lower pinch arm 6 rotates counterclockwise around the pinch arm bush 8 by pulling the lower pinch arm 6 connected to the hinge shaft 5 at the same time as the coalesced spring 4 is extended. The pinch roller 9 coupled to the arm 7 is pressed against the capstan shaft 10 by the spring 4 to convey the tape while applying tension to the tape.
이상과 같이 본 고안은 종래 복잡한 캠기어, 슬라이더 등의 주행메카니즘을 삭제하여 간소화된 구조로서 데크의 부피를 줄일 수 있어 캠코더의 소형화에 유효한 것이다.As described above, the present invention can reduce the volume of the deck as a simplified structure by eliminating driving mechanisms such as a conventional cam gear and a slider, which is effective for miniaturizing a camcorder.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019880013666U KR920000440Y1 (en) | 1988-08-22 | 1988-08-22 | Pinch roller operating apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019880013666U KR920000440Y1 (en) | 1988-08-22 | 1988-08-22 | Pinch roller operating apparatus |
Publications (2)
Publication Number | Publication Date |
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KR900005548U KR900005548U (en) | 1990-03-09 |
KR920000440Y1 true KR920000440Y1 (en) | 1992-01-15 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR2019880013666U KR920000440Y1 (en) | 1988-08-22 | 1988-08-22 | Pinch roller operating apparatus |
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KR (1) | KR920000440Y1 (en) |
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1988
- 1988-08-22 KR KR2019880013666U patent/KR920000440Y1/en not_active IP Right Cessation
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KR900005548U (en) | 1990-03-09 |
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