KR970000150B1 - Earth structure of rotary head drum - Google Patents
Earth structure of rotary head drum Download PDFInfo
- Publication number
- KR970000150B1 KR970000150B1 KR1019930019487A KR930019487A KR970000150B1 KR 970000150 B1 KR970000150 B1 KR 970000150B1 KR 1019930019487 A KR1019930019487 A KR 1019930019487A KR 930019487 A KR930019487 A KR 930019487A KR 970000150 B1 KR970000150 B1 KR 970000150B1
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- KR
- South Korea
- Prior art keywords
- drum
- brush
- insertion hole
- rotating head
- head drum
- 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
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/52—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with simultaneous movement of head and record carrier, e.g. rotation of head
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- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
Description
제1도는 종래 VCR의 회전헤드드럼을 나타낸 반종단면도.1 is a half longitudinal sectional view showing a rotating head drum of a conventional VCR.
제2도는 본 발명에 따른 회전헤드드럼을 나타낸 반종단면도.Figure 2 is a half longitudinal cross-sectional view showing a rotating head drum according to the present invention.
제3도는 제2도의 A 부분확도.3 is the partial A accuracy of FIG.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 드럼모터 2 : 드럼축1: Drum Motor 2: Drum Shaft
3 : 링칼라 4 : 삽입공3: ring collar 4: insertion hole
5 : 하부드럼 6 : 베어링5: lower drum 6: bearing
7 : 상부드럼 8 : 비디오헤드7: upper drum 8: video head
9 : 비디오테이프 10 : 브러쉬9: videotape 10: brush
11 : 탄성부재 12 : 플랜지11 elastic member 12 flange
13 : 드럼베이스13: drum bass
본 발명의 회전헤드드럼의 어드(Earth) 구조에 관한 것으로서, 더욱 상세하게는 VCR의 회전헤드드럼에 설치된 비디오헤드와 비디오테이프의 접촉에 의해 발생되는 정전기를 효율적으로 방출시킬 수 있도록 한 것이다.The present invention relates to an earth structure of the rotating head drum of the present invention, and more particularly, to efficiently discharge static electricity generated by contact between the video head and the video tape installed on the rotating head drum of the VCR.
종래 VCR의 데크부에 설치된 회전헤드드럼은 제1도에 나타낸 바와같이, 상부드럼(7)의 일단 하부에 부착된 비디오헤드(8)와 비디오테이프(9)의 회전접촉에 의해 정전기가 발생하게 되면, 상기 상부드럼(7)과 상부드럼(7) 중앙의 드럼축(2)에 압입되어 있는 플랜지(12) 및 드럼축(2) 상단에 접속된 브러쉬(10a)와 브러쉬(10a)가 부착된 브러쉬홀더(14)를 통해서 정전기를 외부로 방출시키게 된다.As shown in FIG. 1, the rotating head drum installed in the deck portion of the conventional VCR causes static electricity to be generated by the rotational contact between the video head 8 and the video tape 9 attached to the lower end of the upper drum 7. When the upper drum (7) and the upper drum (7) in the center of the drum shaft (2) is pressed in the flange 12 and the drum shaft (2) attached to the brush (10a) and the brush (10a) is attached The discharged static electricity to the outside through the brush holder (14).
그러나, 이와같은 종래의 회전헤드드럼은 브러쉬(10a) 및 브러쉬홀더(14)가 외부에 부착되어 있으므로 인해 외부에서 가해지는 힘 또는 충격에 의해서 탄성의 변화가 발생하여 상기 브러쉬(10a)가 드럼축(2)과 불균일한 접속으로 소음이 발생하게 될뿐만 아니라, 항상 일정한 접속상태가 유지되지 않게 되어 정전기 방출을 위한 어스역할을 효과적으로 수행하지 못하게 되는 등의 문제점이 있었다.However, in the conventional rotating head drum, since the brush 10a and the brush holder 14 are attached to the outside, a change in elasticity occurs due to an external force or impact, so that the brush 10a has a drum shaft. In addition to the non-uniform connection with (2), not only noise is generated, but there is also a problem that the constant connection state is not always maintained and the earth role for electrostatic discharge cannot be effectively performed.
본 발명은 상기한 제반 문제점을 해결하기 위한 것으로서, 본 발명의 VCR의 회전헤드드럼에 설치된 비디오헤드와 비디오테이프의 접촉에 의해 발생되는 정전기를 효율적으로 방출시킬 수 있을 뿐만 아니라, 외부의 힘이나 충격에 의한 변화를 방지하여 항상 일정한 어스역할을 수행할 수 있는 회전헤드드럼의 어스구조를 제공하는데 그 목적이 있다.SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is possible not only to efficiently discharge static electricity generated by the contact of the video tape and the video tape installed on the rotating head drum of the VCR of the present invention. The purpose of the present invention is to provide an earth structure of a rotating head drum which can always perform a constant earth role by preventing a change caused by
상기한 목적을 달성하기 위해 본 발명은 드럼모터의 드럼축에 압입되어 삽입공이 형성되는 링칼라와, 상기 삽입공에 삽입되며 하부드럼의 드럼축에 압입고정된 베어링과 접속되어 상부드럼에 부착된 비디오헤드와 비디오테이프의 회전접촉에 의해 발생되는 정전기를 방출시키는 브러쉬와, 상기 브러쉬와 드럼모터사이의 삽입공에 삽입되어 브러쉬에 탄성력을 부여하는 탄성부재로 구성된 회전헤드드럼의 어스구조이다.In order to achieve the above object, the present invention is a ring collar that is inserted into the drum shaft of the drum motor to form an insertion hole, and is inserted into the insertion hole and connected to the bearing fixed to the drum shaft of the lower drum is attached to the upper drum An earth structure of a rotating head drum comprising a brush for releasing static electricity generated by the rotational contact between the video head and the video tape, and an elastic member inserted into an insertion hole between the brush and the drum motor to impart an elastic force to the brush.
이하, 본 발명의 일실시예를 첨부도면 제2도에 제3도를 참조하여 상세히 설명하면 다음과 같다.Hereinafter, an embodiment of the present invention will be described in detail with reference to FIG. 3 to FIG. 2 as follows.
제2도는 본 발명에 따른 회전헤드드럼을 나타낸 반종단면도이고, 제3도는 제2도의 A 부분확대도로서, 회전헤드드럼의 드럼모터(1) 중앙에 설치된 드럼축(2)에 압입된 링칼라(3)의 일측에 삽입공(4)이 형성되고, 삽입공(4)의 상부에는 하부드럼(5)중앙의 드럼축(1)에 압입고정된 베어링(6)과 접속되어 상부드럼(7)의 일단하부에 부착된 비디오헤드(8)와 비디오테이프(9)의 회전접촉에 의해 발생되는 정전기를 방출시키는 브러쉬(10)가 삽입되며, 브러쉬(10)하부와 드럼모터(1) 사이의 상기 삽입공(4)에는 브러쉬(10)에 탄성력을 부여하는 탄성부재(11)가 삽입되어 구성된다.FIG. 2 is a half longitudinal cross-sectional view showing a rotating head drum according to the present invention, and FIG. 3 is a partially enlarged view of portion A of FIG. 2, which is a ring collar press-fitted to a drum shaft 2 installed at the center of the drum motor 1 of the rotating head drum. Insertion hole (4) is formed on one side of (3), the upper part of the insertion hole (4) is connected to the bearing (6) press-fit and fixed to the drum shaft (1) in the center of the lower drum (5) A brush 10 for dissipating static electricity generated by the rotational contact of the video head 8 and the video tape 9 attached to the lower end of the head) is inserted, and between the lower part of the brush 10 and the drum motor 1 The insertion hole 4 is configured by inserting an elastic member 11 to impart an elastic force to the brush (10).
이와 같이 구성된 본 발명은 제2도 및 제3도에 나타낸 바와같이 VCR의 데크부에 설치된 회전헤드드럼의 상부드럼(7) 일단하부에 부착된 비디오헤드(8)와 비디오테이프(9)의 회전접촉에 의해 정전기가 발생하게 되면, 상기 상부드럼(7)과 상부드럼(7)중앙의 드럼축(2)에 압입되어 있는 플렌지(12) 및 드럼축(2)을 통해서 순차적으로 드럼모터(1) 중앙의 드럼축(2)에 압입된 링칼라(3)와 링칼라(3)의 일측에 형성된 삽입공(4)에 삽입된 브러쉬(10) 및 탄성부재(11)를 거쳐서 상기 브러쉬(10)와 접촉되어 하부드럼(5) 중앙의 드럼축(2)에 압입고정된 베어링(6), 하부드럼(5)을 통해 하부드럼(5)이 장착된 드럼베이스(13)를 통로로하여 정전기를 외부로 효율적으로 방출시킬 수 있게 된다.The present invention configured as described above shows the rotation of the video head 8 and the video tape 9 attached to the lower end of the upper drum 7 of the rotating head drum provided in the deck portion of the VCR as shown in FIGS. 2 and 3. When static electricity is generated by the contact, the drum motor 1 is sequentially provided through the flange 12 and the drum shaft 2 that are pressed into the drum shaft 2 in the center of the upper drum 7 and the upper drum 7. The brush 10 through the ring collar 3 pressed into the drum drum 2 at the center and the brush 10 and the elastic member 11 inserted into the insertion hole 4 formed at one side of the ring collar 3. ), The bearing 6 fixed to the drum shaft 2 in the center of the lower drum 5, and the drum base 13 on which the lower drum 5 is mounted through the lower drum 5 are electrostatically It can be efficiently released to the outside.
또한, 회전헤드드럼의 내부에 회전헤드드럼과 일체로 어스부가 설치되어 외부의 힘이나 충격에 의한 어스부의 변화를 방지할 수 있으므로 인해 항상 일정한 상태로 어스역할을 수행할 수 있게 된다.In addition, since the earth portion is integrally installed with the rotating head drum inside the rotating head drum, it is possible to prevent the change of the earth portion due to external force or impact, so that the earth role can be always performed in a constant state.
이상에서와 같이, 본 발명은 회전헤드드럼 내부에 드럼모터(1) 중앙에 드럼축(2)에 압입된 링칼라(3) 일측의 삽입공(4)에 정전기를 방출시키는 어스역할을 수행하는 브러쉬(10)와 탄성부재(11)를 삽입시켜 회전헤드드럼과 일체화 시키므로써, 외부의 힘이나 충격에 의한 어스부의 변화를 방지하여 항상 일정한 상태로서 어스역할을 수행할 수 있으므로 인해 VCR의 효율성 및 신뢰성을 대폭 향상시킨 매우 유용한 발명이다.As described above, the present invention is to perform the role of the earth to discharge the static electricity in the insertion hole (4) on one side of the ring collar (3) pressed into the drum shaft (2) in the center of the drum motor (1) inside the rotating head drum By inserting the brush 10 and the elastic member 11 to integrate with the rotating head drum, it is possible to prevent the change of the earth portion due to external force or impact, so that it can always perform the earth role as a constant state, thereby improving the efficiency and efficiency of the VCR. It is a very useful invention which greatly improved the reliability.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019930019487A KR970000150B1 (en) | 1993-09-23 | 1993-09-23 | Earth structure of rotary head drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019930019487A KR970000150B1 (en) | 1993-09-23 | 1993-09-23 | Earth structure of rotary head drum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR950009550A KR950009550A (en) | 1995-04-24 |
| KR970000150B1 true KR970000150B1 (en) | 1997-01-04 |
Family
ID=19364407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019930019487A KR970000150B1 (en) | 1993-09-23 | 1993-09-23 | Earth structure of rotary head drum |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR970000150B1 (en) |
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1993
- 1993-09-23 KR KR1019930019487A patent/KR970000150B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR950009550A (en) | 1995-04-24 |
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