KR890006620Y1 - Back tension control device of video tape recorder - Google Patents
Back tension control device of video tape recorder Download PDFInfo
- Publication number
- KR890006620Y1 KR890006620Y1 KR2019860009591U KR860009591U KR890006620Y1 KR 890006620 Y1 KR890006620 Y1 KR 890006620Y1 KR 2019860009591 U KR2019860009591 U KR 2019860009591U KR 860009591 U KR860009591 U KR 860009591U KR 890006620 Y1 KR890006620 Y1 KR 890006620Y1
- Authority
- KR
- South Korea
- Prior art keywords
- tension
- gear
- tape
- reel
- disk
- 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
- G11B15/22—Stopping means
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D2065/026—Braking members; Mounting thereof characterised by a particular outline shape of the braking member, e.g. footprint of friction lining
Landscapes
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
Abstract
내용 없음.No content.
Description
제1도는 본 고안의 동력전달 체계도.1 is a power transmission system diagram of the present invention.
제2도는 본 고안 디스크 기어의 종단면도.Figure 2 is a longitudinal cross-sectional view of the disk gear of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 텐션포스트 2 : 스프링1: tension post 2: spring
3 : 텐션암 4 : 텐션바3: tension arm 4: tension bar
4-2 : 기어 6 : 디스크기어4-2: Gear 6: Disc Gear
7 : 디스크 지지스프링 8 : 데크 플레이트7: disc support spring 8: deck plate
8-1 : 디스크 지지기어 9 : 마찰팰트8-1: Disk support gear 9: Friction felt
본 고안은 VTR에 있어서 텐션 포스트에 접촉되어 주행하는 테이프의 늘어지는 정도에 따라 스프링의 작용으로 텐션암이 회전하고 텐션바가 이를 직선 운동을 바꾸면서 텐션바의 기어가 디스크 기어를 상, 하로 이동시키도록 하여 테이프의 텐션을 적절하게 유지해주도록 한 VTR의 디스크 브레이크 장치 및 백 텐션 조정장치에 관한 것이다.According to the present invention, the tension arm rotates by the action of the spring and the tension bar changes the linear motion according to the degree of the tape running in contact with the tension post in the VTR so that the gear of the tension bar moves the disk gear up and down. The disc brake device and the back tension control device of the VTR to properly maintain the tension of the tape.
종래에는 VTR을 사용하면서 테이프를 주행시키거나 리와인드나 셔치를 동작시킬 때에는 테이프의 주행중에 발생되는 테이프의 늘어짐을 방지하기 위하여 주행하는 테이프를 텐션 포스트에 접촉하도록 하고 텐션암에 연결된 텐션밴드를 사용하여 릴의 구동을 제어하도록 하였으나 텐션 포스트에서 감지하는 테이프의 늘어지는 정도가 텐션암에 정확하게 전달되지 않는 경우가 있으므로 텐션밴드를 이용한 릴의 구동제어가 정확히 작동되지 않는 등 불편이 있었다.Conventionally, when driving a tape or operating a rewind or a watch while using a VTR, the running tape is brought into contact with the tension post and the tension band connected to the tension arm is used to prevent the tape from sagging while the tape is running. Although the driving of the reel was controlled, the degree of slack of the tape sensed by the tension post may not be accurately transmitted to the tension arm, which is inconvenient, such as driving control of the reel using the tension band does not operate correctly.
이와 같은 단점을 보완하기 위한 본 고안은 주행하는 테이프의 늘어지는 정도를 감지하는 텐션 포스트의 상태에 따라 스프링의 탄성으로 회전하는 텐션암의 일측에 텐션바를 연결하여 회전운동을 직선운동으로 바꾸고 텐션바의 기어와 치차가 맞물린 디스크 기어가 상하로 이동하면서 상측의 마찰팰트가 릴에 부착되며 구동을 제안하도록 함으로써 테이프의 주행 상태에 따라 릴의 구동을 정확히 제어할 수 있도록 한 것으로 이를 첨부된 도면에 의해 상세히 설명하면 다음과 같다.The present invention to compensate for the above disadvantages by connecting the tension bar to one side of the tension arm that rotates elastically of the spring according to the state of the tension post to detect the extent of the running tape to change the rotational movement to linear movement and tension bar Of the gear and the gear mesh engaged with the gear moves up and down, and the upper friction felt is attached to the reel and suggests driving so that the driving of the reel can be accurately controlled according to the driving state of the tape. It will be described in detail as follows.
VTR에 있어서 주행하는 테이프가 접촉하는 텐션 포스트(1)가 일측에 형성되고 타측에 연결된 스프링(2)의 탄성으로 축(3-1)을 중심으로 회전하는 텐션암(3)에 일측이 힌지(3-2)로 연결되어 장공(4-1)에 끼워진 스터드(5)에 의해 제한된 직선운동만 하는 텐션바(4)의 타측에 기어(4-2)를 일체로 형성하고, 텐션바(4)의 기어(4-2)와 외벽의 치차(6-1)가 맞물려 회전하는 디스크 기어(6)의 내벽에 헬리컬 나선(6-2)을 형성하여 데크 플레이트(8)에 고정형성된 디스크 가이드 기어(8-1)의 나선(8-2)을 따라 디스크 지지스프링의 탄성을 받으며 상, 하로 이동하면서 디스크기어(6)의 위쪽에 부착된 마찰팰트(9)가 구동하는 릴(10)과 접촉하도록 한 것이다.One side is hinged to the tension arm 3 which rotates about the shaft 3-1 by the elasticity of the spring 2 connected to the other side by the tension post 1 which the tape which travels in a VTR contacts. Gears 4-2 are integrally formed on the other side of the tension bar 4, which is connected by 3-2 and limited by linear movement limited by the studs 5 inserted into the long holes 4-1, and the tension bar 4 Disk guide gear fixed to the deck plate 8 by forming a helical spiral 6-2 on the inner wall of the disk gear 6, which is engaged with the gear 4-2 of the gear 4 and the gear 6-1 of the outer wall. The reel 10 is driven by the friction pallet 9 attached to the upper portion of the disc gear 6 while moving up and down while receiving the elasticity of the disc support spring along the helix 8-2 of (8-1). I did it.
미 설명부호 11은 베이스 가이드이다.Reference numeral 11 is a base guide.
이와 같은 본 고안은 VTR을 동작시켜 테이프가 주행할 때 테이프가 팽팽하지 않고 늘어진 경우에는 제1도에 도시된 바와 같이 테이프와 접촉하는 텐션포스트(1)에 접촉되는 정도에 따라 스프링(2)의 탄성으로 축(3-1)을 중심으로 화살표 회전하는 텐션암(3)의 회전운동을 이와 힌지(3-2)로 연결되고 장공(4-1)에 스터드(5)가 끼워져 왕복운동하는 텐션바(4)에 의해 직선운동으로 바꾸면서 텐션바(4)의 타측에 형성된 기어(4-2)와 외벽의 치차(6-1)가 맞물린 디스크 기어(6)를 화살표 방향으로 회전시킨다.This invention devises the spring 2 according to the degree of contact with the tension post 1 in contact with the tape, as shown in FIG. The tension of the tension arm 3, which is elastically rotated about the shaft 3-1, is connected to the hinge 3-3, and the stud 5 is inserted into the long hole 4-1. The disk gear 6, which is engaged with the gear 4-2 formed on the other side of the tension bar 4 and the gear 6-1 of the outer wall, is rotated in the direction of the arrow while changing to the linear motion by the bar 4.
그러면 데크 플레이트(8)에 고정 형성된 디스크 가이드 기어(8-1)의 외벽에 형성된 나선(8-2)을 따라 디스크 지지스프링(7)의 탄성을 받으면서 디스크 기어(6)의 내벽에 형성된 헬리컬 나선(6-2)이 위쪽으로 이동시켜 주므로 위쪽에 부착된 마찰팰트(9)가 릴(10)과 접촉하며 구동을 제어하며 속도가 늦춰지면서 테이프가 팽팽해진다.Then, the helical spiral formed on the inner wall of the disk gear 6 while receiving the elasticity of the disk support spring 7 along the spiral 8-2 formed on the outer wall of the disk guide gear 8-1 fixedly formed on the deck plate 8. Since (6-2) moves upwards, the friction pallet (9) attached to the upper side contacts the reel (10), controls the drive, and slows down the tape as the speed is slowed down.
또 반대로 테이프가 과도하게 팽팽할 경우에는 텐션 포스트(1)에 접촉되는 정도에 따라 텐션암(3)이 축(3-1)을 중심으로 화살표 반대방향으로 회전하고 이에 따라 힌지(3-2)로 연결된 텐션바(4)도 화살표 반대방향으로 직선운동을 하며 기어(4-2)와 치차(6-1)가 맞물린 디스크 기어(6)을 회전시킴에 따라 데크 플레이트(8)에 고정 형성된 디스크 가이드 기어(8-1)의 나선(8-2)에 내벽의 헬리컬 나선(6-2)이 맞물려 아래쪽으로 이동하며 릴(10)과 접촉된 마찰팰트(9)를 아래쪽으로 이동시켜 릴(10)의 구동이 빨라지면서 테이프의 텐션이 적절하게 유지되는 것이다.On the contrary, when the tape is excessively taut, the tension arm 3 rotates about the axis 3-1 in the direction opposite to the arrow depending on the degree of contact with the tension post 1, and accordingly the hinge 3-2. The tension bar (4) connected to the wheel also moves in a straight line in the direction opposite to the arrow, and the disk (6) is fixed to the deck plate (8) by rotating the disk gear (6) where the gear (4-2) and the gear (6-1) are engaged. The helical helix 6-2 of the inner wall engages with the helix 8-2 of the guide gear 8-1, and moves downward to move the friction pallet 9 in contact with the reel 10 to the reel 10 As the drive speeds up, the tension of the tape is maintained properly.
이와 같이 테이프의 팽팽하거나 늘어지는 정도를 접촉 감지하는 텐션포스트(1)의 결과에 따라 텐션암(3)이 스프링(2)의 탄성을 받으며 회전하고 이 회전 운동을 텐션바(4)가 직선운동으로 바꾸면서 타측에 형성된 기어(4-2)가 디스크 기어(6)를 회전시켜 데크 플레이트(8)에 고정 형성된 디스크 가이드 기어(8-1)의 나선(8-2)을 따라 디스크 기어(6)의 내벽에 형성된 헬리컬 나선(6-2)이 위아래로 이동하며 릴(10)의 구동을 제어하도록 함으로써 테이프의 늘어지는 정도가 정확히 감지되고 이의 상황에 따라 정확한 동력전달로 릴의 구동을 조절하면서 테이프의 늘어지는 정도를 조절하도록 한것이다.As a result of the tension post 1 which detects the degree of tension or sagging of the tape as described above, the tension arm 3 rotates under the elasticity of the spring 2, and the tension bar 4 moves linearly. The disk gear 6 along the helix 8-2 of the disk guide gear 8-1, which is formed on the other side by rotating the disk gear 6 and fixed to the deck plate 8, while changing to. The helical spiral (6-2) formed on the inner wall of the movement is moved up and down to control the drive of the reel 10, the degree of tape drop is accurately sensed, according to the situation of the tape while adjusting the drive of the reel with accurate power transmission This is to adjust the degree of drooping.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019860009591U KR890006620Y1 (en) | 1986-07-04 | 1986-07-04 | Back tension control device of video tape recorder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019860009591U KR890006620Y1 (en) | 1986-07-04 | 1986-07-04 | Back tension control device of video tape recorder |
Publications (2)
Publication Number | Publication Date |
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KR880003211U KR880003211U (en) | 1988-04-13 |
KR890006620Y1 true KR890006620Y1 (en) | 1989-09-30 |
Family
ID=19253361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019860009591U KR890006620Y1 (en) | 1986-07-04 | 1986-07-04 | Back tension control device of video tape recorder |
Country Status (1)
Country | Link |
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KR (1) | KR890006620Y1 (en) |
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1986
- 1986-07-04 KR KR2019860009591U patent/KR890006620Y1/en not_active IP Right Cessation
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Publication number | Publication date |
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KR880003211U (en) | 1988-04-13 |
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