KR890003592Y1 - Reel speed-changing arrangement - Google Patents

Reel speed-changing arrangement Download PDF

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Publication number
KR890003592Y1
KR890003592Y1 KR2019860000377U KR860000377U KR890003592Y1 KR 890003592 Y1 KR890003592 Y1 KR 890003592Y1 KR 2019860000377 U KR2019860000377 U KR 2019860000377U KR 860000377 U KR860000377 U KR 860000377U KR 890003592 Y1 KR890003592 Y1 KR 890003592Y1
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KR
South Korea
Prior art keywords
pulley
compression spring
disc clutch
shaft
lever
Prior art date
Application number
KR2019860000377U
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Korean (ko)
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KR870012698U (en
Inventor
박종성
지정범
Original Assignee
대우전자주식회사
김용원
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Priority to KR2019860000377U priority Critical patent/KR890003592Y1/en
Publication of KR870012698U publication Critical patent/KR870012698U/en
Application granted granted Critical
Publication of KR890003592Y1 publication Critical patent/KR890003592Y1/en

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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
    • G11B15/44—Speed-changing arrangements; Reversing arrangements; Drive transfer means therefor
    • 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
    • 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
    • G11B15/46—Controlling, regulating, or indicating speed
    • G11B15/50—Controlling, regulating, or indicating speed by mechanical linkage, e.g. clutch

Abstract

내용 없음.No content.

Description

비디오 테이프 레코오더의 릴 회전축 가변전동장치Reel Spindle Variable Motor for Video Tape Recorder

제1도는 본 고안의 분해 사시도.1 is an exploded perspective view of the present invention.

제2도는 본 고안의 결합상태 일부 절취 단면도.Figure 2 is a cross-sectional view of part of the coupling state of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 풀리축 2 : 보스1: pulley shaft 2: boss

3 : 브라켓트 4 : 메인베이스3: bracket 4: main base

5 : 와셔 6 : 풀리5: washer 6: pulley

7 : 펠트 8 : 원판클러치7: felt 8: disc clutch

9 : 와셔 10. 12 : 압축스프링 보호대9: washer 10. 12: compression spring guard

11 : 압축스프링 13 : 벨트풀리11: compression spring 13: belt pulley

14 : 축 15 : 레버14 axis 15 lever

15a : 선단부 15b : 후단부15a: front end 15b: rear end

15c : 돌기부 16 : 와셔15c: protrusion 16: washer

17 : 벨트 18 : 캠17: belt 18: cam

19 : 커넥터 플레이트 20 : 아이들러 휘일19: connector plate 20: idler wheel

21 : E링21: E ring

본 고안은 비디오 테이프 레코오더 (이하 VTR 이라 약칭)의 릴 회전축을 구동시키기 위한 장치에 관한 것으로서, 특히 압축스프링과 원판 클러치를 이용한 가변전동 장치에 관한 것이다.The present invention relates to a device for driving a reel rotating shaft of a video tape recorder (hereinafter abbreviated as VTR), and more particularly to a variable transmission device using a compression spring and a disc clutch.

종래의 벨트 드리이브식 릴 회전축 구동장치에서는 벨트 풀리로부터 아이들러 휘일까지 각 모드에서 요구되는 동력을 전달하기 위하여 각 모드 전용의 기어 및 레버들을 따로 설치 함으로서 VTR 의 소형화 및 간소화에 장애요소가 되어 작업능률 및 생산원가에 많은 영향을 미치게 되었다.In the conventional belt-driven reel rotating shaft drive device, gears and levers dedicated to each mode are separately installed to transfer power required from each belt to the idler wheel, which is an obstacle to miniaturization and simplification of the VTR. It has a lot of influence on production cost.

따라서 본 고안은 이러한 상기 문제점들을 해결하기 하기위하여 풀리축에 아이들러 휘일을 구동시키는 풀리와 펠트가 부착된 원판클러치를 설치하고 기존의 커넥터 플레이트에 설치된 캠면과 연동하는 레버의 상, 하운동을 이용하여 원판 클러치를 받치고 있는 압축 스프링의 압축력을 가변시킴으로서 벨트 풀리로부터 풀리로의 전동력을 가변시킬수 있는 장치를 제공하는 것으로서, 이하 첨부 도면에 따라 상세히 설명하면 다음과 같다.Therefore, the present invention uses the up and down movement of the lever interlocking with the cam surface installed on the existing connector plate and the disc clutch attached to the pulley and the felt to drive the idler wheel on the pulley shaft to solve the above problems. The present invention provides a device capable of varying the electric force from the belt pulley to the pulley by varying the compression force of the compression spring supporting the disc clutch, which will be described below in detail with reference to the accompanying drawings.

메인베이스(4)에 고정되어 있는 브라켓트(3)상에 보스(2)에 고정압입 되어 있는 풀리축(1)을 고정하고 그 풀리축(1)에 와셔(5), 풀리(6), 펠트(7)가 부착되어 있는 원판 클러치(8)를 설치하고 원판클러치(8) 하단에는 와셔(9), 요철형상의 상, 하 압축스프링 보호대(10) (12) 사이에 압축스프링(11)을 삽입하여 원판클러치(8)의 육각홈(8a) 내에는 상부측선단이 육각형(13a)으로 되어 있는 벨트풀리(13)가 삽입되고 벨트풀리(13)가 이탈되지않도록 와셔(16)로 지지되어 있다.The pulley shaft 1 fixed to the boss 2 is fixed on the bracket 3 fixed to the main base 4, and the washer 5, pulley 6, and felt are attached to the pulley shaft 1. (7) is attached to the disc clutch (8) is attached to the lower end of the disc clutch (8) between the washer (9), uneven upper and lower compression spring guards (10, 12) between the compression spring (11) Inserted into the hexagonal groove 8a of the disc clutch 8, the belt pulley 13 having the upper side tip of the hexagon 13a is inserted and supported by the washer 16 so that the belt pulley 13 is not detached. have.

한편, 브라켓트(3)에는 E링(21)으로 지지할 수 있는 축(14)과 축(14)을 중심으로 회전 가능토록 되어 있는 레버(15)를 설치하여 레버(15)의 "Y"자형 선단(15a)의 돌기부(15b)는 압축스링보호대(12)를 받치고 다른 후단(15b)은 기존의 커넥터 플레이트(19)에 설치되어 있는 캠(18)의 다단식 캠면(18a) (18b) (18c) (18d)에 접촉하도록 하여 커넥터 플레이드(19)의 A, B방향의 수평이동에 대하여 레버(15)가 축(14)을 회전 중심으로 하여 C, D방향으로 상, 하회동하게 함으로서 압축스프링(11)을 압축 또는 이완시킬수 있는 구조로 되어 있다.On the other hand, the bracket 3 is provided with a shaft 14 that can be supported by the E-ring 21 and a lever 15 which is rotatable about the shaft 14 to form a “Y” shape of the lever 15. The protruding portion 15b of the front end 15a supports the compression spring guard 12 and the other rear end 15b of the multistage cam surface 18a, 18b, 18c of the cam 18 provided on the existing connector plate 19. The lever 15 moves up and down in the C and D directions with respect to the horizontal movement in the A and B directions of the connector plate 19 so as to be in contact with (18d). The spring 11 is configured to compress or relax.

이와 같이 된 본 고안의 작동상태를 설명하면 다음과 같다.Referring to the operating state of the present invention as described above is as follows.

작동버튼(도시되지 않음)을 누르면 커넥터 플레이트(19)는 해당 동작모드의 위치까지 수평이동을 하고 레버(15)의 후단(15b)이 커넥터 플레이트(19)상에 설치된 해당 동작모드의 캠면(18a) (18b) (18c) (18d)에 접촉 하게 되며 이에따라 레버(15)의 선단(15a)은 축(14)을 회전중심으로 압축스프링(11)을 압축시켜 원판 클러치(8)에 힘을 가하게 된다. 이때 모터(도시되지 않음)로 부터 벨트(17)를 거쳐 동력을 전달 받은 벨트풀리(13)가 회전하게 되고 이 회전력은 원판 클러치(8)로 전달되며 원판클러치(8)는 압축스프링(11)의 압축력에 비례하는 회전력을 펠트(7)를 거쳐 풀리(6)로 전달하며 이풀리(6)로 전달된 동력에 의해 아이들러휘일(20)이 벨트풀리(13)의 회전방향에 따라 공급측 또는 감이측 릴 회전축(도시되지 않음)을 구동시키게 된다.When the operation button (not shown) is pressed, the connector plate 19 moves horizontally to the position of the operation mode, and the cam surface 18a of the operation mode in which the rear end 15b of the lever 15 is installed on the connector plate 19 is provided. (18b) (18c) and (18d), and thus the tip (15a) of the lever (15) compresses the compression spring (11) around the shaft (14) to force the disc clutch (8). do. At this time, the belt pulley 13 which receives power from the motor (not shown) via the belt 17 is rotated, and this rotational force is transmitted to the disc clutch 8, and the disc clutch 8 is a compression spring 11. The rotational force proportional to the compressive force of the transfer to the pulley (6) via the felt (7) and the idler wheel 20 by the power transmitted to the pulley (6) according to the rotation direction of the belt pulley (13) This drives the reel rotating shaft (not shown).

풀리(6)에 규정 이상의 과부하가 걸리게 되면 풀리(6)와 원판클러치(8) 상단의 펠트(7) 사이에는 미끄럼이 발생하기 때문에 풀리(6)에는 항상 일정한 동력만이 전달되도록 되어 있다. 다른 동작 버튼(도시되지 않음)을 눌렀을때 그 동작 모드에 행당하는 캠면(18a) (18b) (18c) (18d)에 접촉하고 있는 레버(15)에 의해 각 동작모드에 요구되는 양만큼 압축스프링(11)을 원판클러치(8)에 압착시켜 풀리(6)로 전달되는 동력을 가변시킬수 있는 것이다.If the pulley 6 is overloaded with more than specified, sliding occurs between the pulley 6 and the felt 7 on the upper end of the disc clutch 8, so that only a constant power is always transmitted to the pulley 6. When the other operation button (not shown) is pressed, the compression spring is made by the lever 15 in contact with the cam surfaces 18a, 18b, 18c, and 18d corresponding to the operation mode. By pressing 11 on the disc clutch 8, the power transmitted to the pulley 6 can be varied.

또한 커넥터 플레이트(19)에는 최저 높이의 캠면(18a)이 설치되어 있어서 정지모드시 풀리(6)와 원판클러치(8)상의 펠트(7)를 분리시킴으로서 모타의 관성에 의해 릴 회전축이 회전하는 것을 극소화 할수 있도록 되어 있다.In addition, the cam plate 18a of the minimum height is provided in the connector plate 19, and the reel rotation shaft rotates by the inertia of the motor by separating the pulley 6 and the felt 7 on the disc clutch 8 in the stop mode. It is designed to be minimized.

이상의 설명에서와 같이 본 고안에 따른 가변 전동장치를 사용하면, 압축스프링(11)의 힘만으로서 풀리(6)에 전달되는 동력을 가변시킬수 있게 됨으로서 종래의 각 동작모드 마다 필요했던 전용기어들 및 레버, 브라켓트 등이 불필요하게 되어 VTR의 소형화 및 간소화를 도모할 수 있을 뿐만아니라 부품수의 감소에 따른 조립공정이 단순화, 불량율의 감소등 작업능률을 높일수 있고 생산원가도 절감할 수 있는등 매우 효과적인 고안인 것이다.By using the variable transmission according to the present invention as described above, it is possible to vary the power transmitted to the pulley 6 only by the force of the compression spring 11, the dedicated gears and levers required for each conventional operation mode It is not only possible to use brackets, etc., but also to reduce the size and simplification of the VTR, as well as simplify the assembly process due to the reduction of the number of parts, reduce the defective rate, increase the work efficiency, and reduce the production cost. It is

Claims (1)

메인베이스(4)에 고정된 브라켓트(3)에 풀리축(1)을 관통 설치하고 이에 풀리(6), 펠트(7)가 부착되어 있는 원판 클러치(8)를 설치하며, 원판클러치(8) 하단에는 압축스프링(11)을 삽입한 요철형상의 압축스프링 보호대(10) (12)를 설치하고, 원판클러치(8)의 육각홈(8a)내에는 한쪽 선단이 육각형(13a)으로 형성되어 있는 벨트풀리(13)가 삽입지지되고 블라켓트(3)의 일측 하단에는 레버(15)를 축(14)으로 회동 자재토록 설치하여 이의 선단(15a)의 돌기부(15c)는 상기의 압축스프링 보호대(12)를 받치고 후단(15b)은 커넥터 플레이트(19)에 형성한 다단식 캠면을 가진 캠(18)에 접촉하도록 설치하여 커넥터 플레이트(19)의 수평이동에 대하여 레버(15)가 축(14)을 중심으로 상, 하 회동하게 구성하여서된 비디오 테이프 레코오더의 릴 회전축 가변 전동장치.The pulley shaft 1 is installed through the bracket 3 fixed to the main base 4, and the disc clutch 8 to which the pulley 6 and the felt 7 are attached is installed, and the disc clutch 8 is provided. The lower end is provided with a concave-convex compression spring guard (10) (12) in which the compression spring (11) is inserted, and one end is formed into a hexagon (13a) in the hexagonal groove (8a) of the disc clutch (8). The belt pulley 13 is inserted and supported, and the lever 15 is pivotally installed at one lower end of the blanket 3 to the shaft 14 so that the protrusion 15c of the tip 15a thereof is the compression spring protector ( 12) and the rear end 15b is installed to contact the cam 18 having the multi-stage cam surface formed on the connector plate 19 so that the lever 15 moves the shaft 14 against the horizontal movement of the connector plate 19. A reel rotary shaft variable transmission device of a video tape recorder configured to rotate up and down around a center.
KR2019860000377U 1986-01-16 1986-01-16 Reel speed-changing arrangement KR890003592Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019860000377U KR890003592Y1 (en) 1986-01-16 1986-01-16 Reel speed-changing arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019860000377U KR890003592Y1 (en) 1986-01-16 1986-01-16 Reel speed-changing arrangement

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Publication Number Publication Date
KR870012698U KR870012698U (en) 1987-08-05
KR890003592Y1 true KR890003592Y1 (en) 1989-05-27

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KR2019860000377U KR890003592Y1 (en) 1986-01-16 1986-01-16 Reel speed-changing arrangement

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