KR940001213Y1 - Tape tension control device for vcr - Google Patents
Tape tension control device for vcr Download PDFInfo
- Publication number
- KR940001213Y1 KR940001213Y1 KR2019880019344U KR880019344U KR940001213Y1 KR 940001213 Y1 KR940001213 Y1 KR 940001213Y1 KR 2019880019344 U KR2019880019344 U KR 2019880019344U KR 880019344 U KR880019344 U KR 880019344U KR 940001213 Y1 KR940001213 Y1 KR 940001213Y1
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- KR
- South Korea
- Prior art keywords
- tension
- tape
- supply reel
- control device
- felt
- Prior art date
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Classifications
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- 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)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
Abstract
내용 없음.No content.
Description
제1도는 일반적인 브이씨알의 테이프 주행계를 보인 평면도.1 is a plan view showing a typical V-Tal running system.
제2도는 종래 브이씨알의 테이프텐션 조절장치 구성을 보인 평면도.2 is a plan view showing a conventional configuration of the tape tension adjustment device of V-AL.
제3도의 (a)는 종래 장치의 구성을 보인 부분 종단면도.Figure 3 (a) is a partial longitudinal cross-sectional view showing the configuration of a conventional device.
(b)는 종래 장치이 작용을 보인 확대 종단면도.(b) is an enlarged longitudinal sectional view in which the conventional apparatus is shown.
제4도는 본 고안의 브이씨알의 테이프텐션장치 구성을 보인 분해사시도.Figure 4 is an exploded perspective view showing the configuration of the tape tension device of the VR of the present invention.
제5도의 (a)는 본 고안 장치의 요부 구성을 보인 부분 종단면도.(A) of FIG. 5 is a partial longitudinal cross-sectional view which shows the principal part structure of this apparatus.
(b)는 본 고안 장치의 다른 실시형태를 보인 종단면도.(b) is a longitudinal cross-sectional view which shows another embodiment of this invention device.
제6도는 본 고안 장치의 적용을 보인 확대 종단면도.Figure 6 is an enlarged longitudinal cross-sectional view showing the application of the subject innovation device.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
33 : 공급릴 35 : 텐션암33: supply reel 35: tension arm
36 : 텐션스프링 37 : 펠트36: tension spring 37: felt
38 : 텐션밴드 37a , 37a' : 경사면, 만곡면38: Tension band 37a, 37a ': slope, curved surface
42, 43 : 요입부 42a, 43a' : 경사면, 만곡면42, 43: recessed part 42a, 43a ': inclined surface, curved surface
본 고안은 브이씨알의 테이프텐션 조절장치에 관한 것으로, 특히 텐션밴드에 의한 공급릴의 제동력을 증대시킴으로써 텐션스프링의 하중을 작게하여 제품의 소형화 및 경량화에 기여하는 동시에 테이프텐션의 조절능력을 향상시킬 수 있게한 브이씨알의 테이프텐션 조절장치에 관한 것이다.The present invention relates to a tape tension adjusting device of V-Cal. In particular, by increasing the braking force of the supply reel by the tension band, the load of the tension spring is reduced, contributing to the miniaturization and lightening of the product, and at the same time improving the ability of adjusting the tape tension. It relates to a tape tension control device of V-CAL.
제1도는 일반적인 브이씨알의 테이프 주행계를 보이고 있다.1 shows a typical V-Tal running system.
도면중 1은 카세트, 2, 2'는 공급릴 및 권취릴, 3은 텐션포스트, 4는 전폭소거헤드, 5는 임피던스로울러, 6은 입구측가이드로울러, 7은 입구측경사포트, 8은 헤드드럼, 9는 출구측경사포스트, 10은 출구축가이드로 울러, 11은 A/C헤드, 12은 테이프가이드, 13은 핀치로울러, 14는 캡스턴 샤프트, 15는 테이크업가이드, 16은 테이프를 각각 보인 것이다.1 is a cassette, 2 and 2 'are supply and reel reel, 3 is tension post, 4 is full width erase head, 5 is impedance roller, 6 is entrance guide roller, 7 is entrance slope port, 8 is head Drum, 9 for exit side slope post, 10 for exit shaft guide, 11 for A / C head, 12 for tape guide, 13 for pinch roller, 14 for capstan shaft, 15 for take-up guide, 16 for tape It is seen.
상기한 텐션포스트(3)는 테이프(16)에 적당한 텐션을 가하게 되는 바, 종래의 테이프텐션 조절장치의 일예를 첨부된 도면에 의하여 설명하면 다음과 같다.The tension post 3 is applied to the appropriate tension on the tape 16 bar, an example of a conventional tape tension control device will be described with reference to the accompanying drawings as follows.
제2도 및 제3도에 도시한 바와같이, 메인베이스의 일축에 회전가능하게 설치된 공급릴(2)의 외주면에는 수직면(17a)을 갖는 요입부(17)가 형성되고, 상기 공급릴(2)의 일측에는 상기한 텐션포스트(3)를 구비한 텐션암(18)이 힌지축(19)을 중심으로 회동가능하게 설치되어 인장력을 가진 텐션스프링(20)을 탄력지지되며, 상기 텐션암(18)의 상면 중간부에는 펠트(21)를 갖는 텐션밴드(22)의 일측단부에 고정된 고정편(23)이 축핀(24)으로 축착되고, 상기 텐션밴드(22)는 공급릴(2)의 요입부(17)에 감겨져 그 타측단부에 고정된 고정편(25)이 메인 베이스에 나사(26)로 고정되는 구조로 되어 있다.As shown in Figs. 2 and 3, the outer circumferential surface of the supply reel 2, which is rotatably installed on one axis of the main base, has a concave inlet portion 17 having a vertical surface 17a, and the supply reel 2 At one side of the tension) is provided with a tension arm (18) having the tension post (3) is rotatably installed around the hinge axis (19) to elastically support the tension spring (20) having a tension force, the tension arm ( A fixing piece 23 fixed to one end of the tension band 22 having the felt 21 is fixed to the middle of the upper surface of the upper surface 18 by the shaft pin 24, and the tension band 22 is supplied to the supply reel 2. The fixing piece 25 wound around the concave inlet portion 17 and fixed to the other end thereof is fixed to the main base with a screw 26.
상기한 바와같은 종래의 테이프텐션 조절장치는 녹화 및 재생시 테이프(16)의 장력과 텐션밴드(22)에 부착된 펠트(21)를 통해 공급릴(2)로 가해지는 제동력이 평형상태를 이루어 테이프(16)의 텐션을 일정하게 유지하게 된다.In the conventional tape tension control device as described above, the tension of the tape 16 and the braking force applied to the supply reel 2 through the felt 21 attached to the tension band 22 during recording and playback are in an equilibrium state. The tension of the tape 16 is kept constant.
이때 테이프(16)의 텐션이 증가되면, 텐션포스트(3)를 통하여 텐션암(18)에 가해지는 모우멘트가 증대되므로 텐션암(18)은 시계방향으로 회전되고, 따라서 텐션밴드(22)가 느슨해지므로 공급릴(2)에 가해지는 제동력이 작아지게 된다. 그러므로 테이프(16)의 텐션이 감소하여 다시 평형상태로 되돌아가게 된다.At this time, when the tension of the tape 16 is increased, the moment applied to the tension arm 18 through the tension post 3 is increased, so that the tension arm 18 is rotated clockwise, so that the tension band 22 is rotated. Since it becomes loose, the braking force applied to the supply reel 2 becomes small. Therefore, the tension of the tape 16 is reduced to return to equilibrium again.
또한 테이프(16)의 텐션이 작아지는 경우에는, 상기한 동작의 역으로 진행되어 테이프(16)의 장력과 공급릴(2)에 가해지는 제동력이 편형을 이루게 된다.In addition, when the tension of the tape 16 decreases, the above operation is reversed, and the tension of the tape 16 and the braking force applied to the supply reel 2 are unbalanced.
그러나 상기한 바와같은 종래의 경우에는 제3도에 도시한 바와같이 공급릴(2)의 요입부(17)에 형성된 수직면(17a)에 텐션밴드(22)의 펠트(21)가 평면적으로 접촉을 하게 되므로 마찰토오크는 일정한계이상을 얻을 수 없게 되는 난점이 있었다. 따라서 필요한 제동력을 얻기 위하여는 텐션밴드(22)를 공급릴(2)에 큰 각도로 감거나, 텐션스프링(20)의 하중을 크게하여야 함으로써 제품의 소형화, 경량화에 기여할 수 없을 뿐만아니라, 특히 텐션스프링(20)의 하중이 클수록 스프링 상수가 증대되어 테이프의 텐션조절 특성이 저하되는 등의 여러 문제점이 있는 것이었다.However, in the conventional case as described above, the felt 21 of the tension band 22 is in planar contact with the vertical surface 17a formed in the recessed portion 17 of the supply reel 2, as shown in FIG. As a result, the friction torque has a difficulty in that it is impossible to obtain a certain level or more. Therefore, in order to obtain the necessary braking force, the tension band 22 must be wound around the supply reel 2 at a large angle, or the load of the tension spring 20 must be increased, thereby not only contributing to the miniaturization and weight reduction of the product, and especially the tension. As the load of the spring 20 increases, the spring constant increases, which causes various problems such as deterioration of the tension control characteristic of the tape.
본 고안은 상기한 바와같은 종래의 문제점을 해소하기 위하여 안출한 것으로, 공급릴 몸체의 외주면에 각 또는 만곡형상의 요입부를 형성하고, 펠트 및 텐션밴드도 상기 요입부에 맞도록 각(角)지게 또는 만곡지게 형성하여 공급릴의 제동력을 증대시킴으로써 텐션스프링의 하중을 작게하여 제품의 소형화 및 경량화에 기여하는 동시에 테이프텐션의 조절능력을 향상시킬 수 있게 한 브이씨알의 테이프텐션 조절장치를 제공하려는 것이다.The present invention is devised to solve the conventional problems as described above, to form a concave portion of the angle or curved shape on the outer peripheral surface of the supply reel body, the felt and the tension band to be angled to fit the concave portion Or it is to provide a VT tape tension control device that can be formed to be curved to increase the braking force of the supply reel to reduce the tension spring load to contribute to the miniaturization and light weight of the product and to improve the control of the tape tension .
이하, 본 고안을 첨부된 도면에 도시한 실시예에 따라서 상세히 설명한다.Hereinafter, the present invention will be described in detail according to an embodiment shown in the accompanying drawings.
제4도 및 제5도에 도시한 바와가이, 메인베이스(31)에 고정된 고정축(32)에 공급릴(33)이 회전가능하게 설치되고, 상기 공급릴(33)의 일측에는 텐션포스트(34)를 구비한 텐션암(35)이 힌지축(35a)을 중심으로 회동가능하게 설치되어 텐션스프링(36)으로 탄력지지되며, 상기 텐션암(35)의 상면 중간부에는 펠트(37)를 갖는 텐션밴드(38)의 일측단부에 고정된 고정편(39)이 축핀(40)으로 축착되고, 상기 텐션밴드(38)는 공급릴(33)의 요입부에 감겨져 그 타측단부에 고정된 고정편(41)이 메인베이스 나사(44)로 고정되는 브이씨알의 테이프 텐션 조절장치에 있어서, 상기 공급릴(33)의 외주면에는 경사면(42a) 또는 만곡면(43a)를 갖는 요입부(42)(43)를 형성하고, 상기 텐션밴드(38)의 펠트(37) 일측면에는 요입부(42)(43)의 형상을 맞도록 경사면(37a) 또는 만곡면(37a')를 형성하여 구성한 것이다.As shown in FIGS. 4 and 5, a supply reel 33 is rotatably installed on a fixed shaft 32 fixed to the main base 31, and a tension post is provided at one side of the supply reel 33. Tension arm (35) having a (34) is rotatably installed around the hinge axis (35a) is supported by the tension spring 36, the felt 37 in the middle of the upper surface of the tension arm (35) Fixing piece 39 fixed to one end of the tension band 38 having a shaft pin 40 is fixed, the tension band 38 is wound around the recessed portion of the supply reel 33 is fixed to the other end In the V-tension tape tension adjusting device in which the fixing piece 41 is fixed by the main base screw 44, the indentation portion 42 having an inclined surface 42a or a curved surface 43a is provided on the outer circumferential surface of the supply reel 33. ) 43, and the inclined surface 37a or curved surface 37a 'is formed on one side of the felt 37 of the tension band 38 so as to match the shape of the concave portions 42 and 43. Will.
이와같이 구성된 본 고안의 테이프텐션 조절장치의 작용효과를 설명하면 다음과 같다.Referring to the effect of the tape tension control device of the present invention configured as described above are as follows.
본 고안은 테이프(16)텐션의 증감에 따라 텐션암(35)이 힌지축(35a)을 중심으로 시계 또는 반시계방향으로 회동되면서 텐션밴드(38)의 펠트(37)에 의하여 공급릴(33)에 가해지는 제동력을 감소 또는 증가시켜 테이프(16)의 텐션을 일정하게 하는 작용은 종래의 경우와 동일하다.The present invention is supplied by the felt 37 of the tension band 38 while the tension arm 35 is rotated clockwise or counterclockwise about the hinge axis 35a according to the increase and decrease of the tape 16 tension. The function of making the tension of the tape 16 constant by decreasing or increasing the braking force applied to the?
그 차이나는 점에 대하여만 설명하면, 제6도에 도시한 바와같이, 공급릴(33)의 외주면에 형성한 요입부(42)의 경사면(42a)에 텐션밴드(38)에 부착된 펠트(37)의 경사면(37a)이 압착된 상태에서는 경사진 각도 θ에 대하여 1/cosθ만큼 커진힘이 펠트(37)에 가해지게 되므로 그만큼 마찰력도 증가되어 공급릴(33)의 제동력이 커지게 되는 것이다. 따라서 동일한 텐션스프링(36)의 하중에 의하여 얻어지는 공급릴(33)에 가해지는 제동력이 증대됨으로써, 역으로 일정한 제동력을 얻기위한 텐션스프링(36)의 하중이 작아지게 된다.Only the difference will be explained. As shown in FIG. 6, the felt attached to the tension band 38 on the inclined surface 42a of the concave portion 42 formed on the outer circumferential surface of the supply reel 33 In the state in which the inclined surface 37a of the 37 is compressed, the force increased by 1 / cosθ with respect to the inclined angle θ is applied to the felt 37, so that the frictional force increases so that the braking force of the supply reel 33 is increased. . Therefore, the braking force applied to the supply reel 33 obtained by the load of the same tension spring 36 is increased, and conversely, the load of the tension spring 36 for obtaining a constant braking force is reduced.
그러므로 제품의 소형화 및 경량화에 기여할 수 있으며, 또한 텐션스프링(36)이 단위변위에 대한 필요한 하중의 크기인 스프링 상수를 적게할 수 있으므로 테이프(16)의 텐션조절기능이 향상되는 등의 효과가 있다.Therefore, it can contribute to the miniaturization and light weight of the product, and also the tension spring 36 can reduce the spring constant, which is the magnitude of the necessary load for the unit displacement, thereby improving the tension control function of the tape 16. .
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR2019880019344U KR940001213Y1 (en) | 1988-11-29 | 1988-11-29 | Tape tension control device for vcr |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR2019880019344U KR940001213Y1 (en) | 1988-11-29 | 1988-11-29 | Tape tension control device for vcr |
Publications (2)
Publication Number | Publication Date |
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KR900010664U KR900010664U (en) | 1990-06-04 |
KR940001213Y1 true KR940001213Y1 (en) | 1994-03-07 |
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KR2019880019344U KR940001213Y1 (en) | 1988-11-29 | 1988-11-29 | Tape tension control device for vcr |
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KR (1) | KR940001213Y1 (en) |
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- 1988-11-29 KR KR2019880019344U patent/KR940001213Y1/en not_active IP Right Cessation
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