KR950008515Y1 - Head drum earth device of tape recorder - Google Patents
Head drum earth device of tape recorder Download PDFInfo
- Publication number
- KR950008515Y1 KR950008515Y1 KR2019930016474U KR930016474U KR950008515Y1 KR 950008515 Y1 KR950008515 Y1 KR 950008515Y1 KR 2019930016474 U KR2019930016474 U KR 2019930016474U KR 930016474 U KR930016474 U KR 930016474U KR 950008515 Y1 KR950008515 Y1 KR 950008515Y1
- Authority
- KR
- South Korea
- Prior art keywords
- head drum
- tape recorder
- flexible pcb
- grounding device
- tape
- 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
- G11B5/53—Disposition or mounting of heads on rotating support
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
-
- 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
- G11B5/10—Structure or manufacture of housings or shields for heads
- G11B5/11—Shielding of head against electric or magnetic fields
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
내용 없음.No content.
Description
제1도는 종래 헤드드럼 접지장치의 일예를 개략적으로 도시한 평면도.1 is a plan view schematically showing an example of a conventional head drum grounding device.
제2도는 본 고안에 따른 헤드드럼 접지장치를 개략적으로 도시한 측면도.Figure 2 is a side view schematically showing a head drum grounding device according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
11 : 인쇄회로기판 12 : 플렉시블 PCB11: printed circuit board 12: flexible PCB
13 : 접속팁 14 : 카본막13: connection tip 14: carbon film
HD : 헤드드럼 S : (헤드드럼의) 회전축HD: Head Drum S: Rotating Axis
본 고안은 테이프 레코더(tape recorder)에 관한 것으로, 더 상세하게는 헤드드럼(head drum)을 접지(earth)시키는 헤드드럼 접지장치에 관한 것이다.The present invention relates to a tape recorder, and more particularly, to a head drum grounding device for grounding a head drum.
비디오 테이프레코더(VTR), 디지탈오디오테이프(DAT)레코더, 캠코더(camcorder) 등의 테이프레코더는 미세한 피치(pitch)의 신호트랙을 가지는 테이프(tape) 등의 기록매체를 소정의 주행경로 상으로 이송시키면서 테이프에 영상 및 음성정보를 기록 및/또는 재생하는 기록재생장치이다.Tape recorders such as video tape recorders (VTRs), digital audio tape (DAT) recorders, and camcorders transfer recording media such as tapes having a fine pitch signal track over a predetermined driving path. Recording and / or reproducing video and audio information on a tape.
이러한 테이프레코더는 테이프에 정보를 기록, 재생하는 복수의 헤드(head)를 구비하여 구성되는데, 이 헤드는 테이프 주행경로상에 테이프와 접촉되도록 설치된 드럼(drum)의 외주면에 설치되어 고속으로 회전됨으로써 테이프에 정보를 기록, 재생하게 된다.The tape recorder includes a plurality of heads for recording and reproducing information on the tape. The head is installed on the outer circumferential surface of a drum installed in contact with the tape on the tape traveling path, and is rotated at high speed. Information is recorded and played back on the tape.
이에 따라 정보의 기록, 재생시 헤드드럼에는 고속접촉에 의해 정전기가 발생되는 바, 이 정전기는 기록, 재생시 노이즈(noise)를 야기시키는 등 화질을 저하시키는 요인이 되므로 양호한 기록, 재생을 위해서는 헤드드럼의 정전기를 완전히 제거하지 않으면 안된다.As a result, static electricity is generated in the head drum during high-speed contact during recording and reproducing information. This static electricity causes deterioration of image quality such as noise during recording and reproduction. The static electricity on the drum must be completely removed.
제1도에는 이를 위한 종래 헤드드럼 접지장치의 일예를 개략적으로 도시하였다. 이것은 선단에 탄성판(2)을 가지는 지지브라켓(support bracket; 1)이 데크(deck; D)에 세트 스크류(set screw; 5) 등에 의해 고정되어 있고, 탄성판(2)에는 이에 의해 헤드드럼(HD)의 회전축(S) 상단에 탄성적으로 접촉되는 도전성 고무(rubber; 3)가 설치되어 있으며, 이 도전성 고무(3)에는 회전축(S)과의 접촉에 의한 고무(3)의 마모를 방지하기 위해 흑연팁(carbon tip; 4)이 부착되어 있다.Figure 1 schematically shows an example of a conventional head drum grounding device for this purpose. This is because a support bracket (1) having an elastic plate (2) at its tip is fixed to a deck (D) by a set screw (5) or the like, and the elastic plate (2) thereby has a head drum. A conductive rubber (rubber) 3 which is elastically in contact with the upper end of the rotating shaft S of the HD is provided, and the conductive rubber 3 is provided with abrasion of the rubber 3 due to contact with the rotating shaft S. To prevent this, a carbon tip 4 is attached.
그런데 이러한 종래의 헤드드럼 접지장치는 많은 구성부품을 가짐에 의해 구조가 복잡할 뿐 아니라 헤드드럼(HD)의 회전시 떨림에 의한 소음이 심하게 발생되는 문제가 있었다. 또한 헤드드럼(HD)의 정전기가 각 구성부품을 일일이 거쳐 데크(D)에 접지되는 것이므로 충분한 접지가 이루어지지 않아 즉, 신속한 정전기의 제거가 이루어지지 않아 헤드드럼(HD) 베어링(bearing)의 유막에 아아크(arc)가 발생되어 수명이 단축될 뿐 아니라 초기 접지시간이 길어 화질이 열화되는 등 완성된 제품의 신뢰성을 떨어뜨리는 문제도 있었다.However, such a conventional head drum grounding device has a problem in that the structure is complicated by having many components, and noise caused by shaking during the rotation of the head drum HD is severely generated. In addition, since the static electricity of the head drum (HD) is grounded to the deck (D) through each component one by one, there is not enough grounding, that is, the rapid removal of static electricity does not occur, the oil film of the head drum (HD) bearing (bearing) In addition to shortening the life due to arcing, there was also a problem of deteriorating the reliability of the finished product, such as deterioration of image quality due to long initial grounding time.
본 고안의 목적은 이러한 종래의 제반문제를 감안하여 안출된 것으로서 간단한 구성으로 기록, 재생시 발생되는 헤드드럼의 정전기를 신속하고 완전하게 접지시킬 수 있는 테이프레코더의 헤드드럼 접지장치를 제공하는데 있다.An object of the present invention is to provide a head drum grounding device of a tape recorder that can be grounded quickly and completely the static electricity of the head drum generated during recording and playback with a simple configuration, which was devised in view of such a conventional problem.
이와같은 목적을 달성하기 위해 본 고안 테이프레코더의 헤드드럼 접지장치는 소정의 탄성을 가지며 인쇄회로기판의 접지단자에 접속되는 프렉시블 PCB와, 이 플렉시블 PCB에 접합되어 헤드드럼의 회전축에 탄성적으로 접촉되는 도전성의 접속팁을, 구비하여 구성되는 것을 특징으로 한다.In order to achieve the above object, the head drum grounding device of the tape recorder of the present invention has a predetermined elasticity and a flexible PCB connected to the ground terminal of the printed circuit board, and the flexible PCB is elastic to the rotation axis of the head drum. It is characterized by comprising a conductive connection tip in contact with.
이러한 본 고안의 바람직한 특징에 의하면, 접촉에 의한 접속팁의 마모가 방지되도록 이에 카본막이 코팅되어 구성된다.According to this preferred feature of the present invention, the carbon film is coated on it so as to prevent abrasion of the contact tip due to contact.
이에 따라 본 고안은, 기록, 재생시 헤드드럼의 정전기를 신속하고 완전하게 접지시킬 수 있게 되므로 아아크 방지에 의한 헤드드럼의 수명을 연장시킬 수 있을 뿐 아니라 선명한 화질을 구현할 수 있어 완성된 제품의 신뢰성 향상에 큰 효과를 발휘하게 된다.As a result, the present invention can quickly and completely ground the static electricity of the head drum during recording and playback, thereby extending the life of the head drum by preventing arcing and realizing clear image quality. It will have a great effect on improvement.
이와같은 본 고안의 구체적 특징과 다른 이점들은 첨부된 도면을 참조한 이하의 설명에서 더욱 명확해질 것이다.Specific features and other advantages of the present invention will become more apparent from the following description with reference to the accompanying drawings.
제2도에서, 본 고안에 의한 헤드드럼 접지장치는 인쇄회로기판(PCB;11)의 접지단자(도시안됨)에 소정의 탄성을 가지는 대략 "Ω"형 플렉시블(flexible) PCB(12)의 양단이 땜납(15) 등에 의해 접합된다.In FIG. 2, the head drum grounding device according to the present invention has both ends of a substantially "? &Quot; type flexible PCB 12 having a predetermined elasticity at a ground terminal (not shown) of a printed circuit board (PCB) 11. It is joined by this solder 15 or the like.
이러한 형태의 플렉시블 PCB(12)를 구성하는 데에는 여러가지 방법이 사용될 수 있는데, 예를들어 일정 길이의 플렉시블 PCB(12) 양단을 그 길이보다 상대적으로 짧게하여 인쇄회로기판(11)에 접합함으로써 소정의 자체 탄성을 가지는 Ω형으로 구성할 수 있다.Various methods can be used to construct the flexible PCB 12 of this type. For example, both ends of the flexible PCB 12 having a predetermined length are relatively shorter than the length of the flexible PCB 12 and bonded to the printed circuit board 11. It can be configured as an Ω type having its own elasticity.
한편 플렉시블 PCB(12)의 일측면에는 이에 의해 헤드드럼(HD)의 회전축(S) 선단에 탄성적으로 접촉되는 도전성의 접속팁(13)이 접합되는데, 이 접속팁(13)은 구리등의 전도력이 우수한 재질로 형성되는 것이 바람직하다. 또한 이 접속팁(13)은 고속회전되는 헤드드럼(HD)의 회전축(S)에 탄성적으로 접촉되는 것이므로 충분한 내마모성을 가지는 것이 바람직한 바, 예를들어 카본막(14)에 의해 코팅(coating)된다.On the other hand, one side of the flexible PCB 12 is joined to the conductive connecting tip 13 which is elastically in contact with the tip of the rotation axis (S) of the head drum (HD), the connection tip 13 is made of copper, It is preferable to be formed of a material having excellent conductivity. In addition, since the connection tip 13 is elastically in contact with the rotating shaft S of the head drum HD which rotates at high speed, it is preferable to have sufficient abrasion resistance, for example, coating by the carbon film 14. do.
이와같이 구성된 본 고안에 따른 헤드드럼 접지장치는 기록, 재생시 헤드드럼(HD)에 발생되는 정전기가 그 회전축(S)에 접촉된 접속팁(13)을 통해 플렉시블 PCB(12)를 따라 인쇄회로기판(11)의 접지단자에 직접 접지되므로 매우 신속하고 완전하게 접지되게 된다. 이에 따라 헤드드럼(HD) 베어링의 유막에의 아아크 발생이 최대한 억제되어 헤드드럼(HD)의 수명이 종래에 비해 현저히 연장될 뿐 아니라 선명한 화질을 구현할 수 있게 된다. 또한 종래에 비해 구조가 훨씬 간단할 뿐 아니라 플렉시블 PCB(12)에 의해 떨림이 방지되어 소음발생이 근본적으로 방지되게 된다.The head drum grounding device according to the present invention configured as described above is a printed circuit board along the flexible PCB 12 through the connection tip 13 in which the static electricity generated in the head drum (HD) in contact with the rotating shaft (S) during recording and playback. Since it is grounded directly to the ground terminal of (11), it is grounded very quickly and completely. Accordingly, the generation of arc on the oil film of the head drum (HD) bearing is suppressed to the maximum, so that the life of the head drum (HD) is notably extended as compared with the conventional art, and clear image quality can be realized. In addition, the structure is much simpler than in the related art, and the vibration is prevented by the flexible PCB 12, thereby preventing the occurrence of noise.
이상과 같이 본 고안에 의하면 기록, 재생시 헤드드럼의 정전기를 신속하고 완전하게 제거할 수 있게 되므로 아아크 방지에 의한 헤드드럼의 수명을 연장시킬 수 있으며, 선명한 화질을 구현할 수 있다.As described above, according to the present invention, since the static electricity of the head drum can be quickly and completely removed during recording and playback, the life of the head drum can be extended by preventing arcing, and a clear image quality can be realized.
따라서 본 고안은 완성된 제품의 고품위화(高品位化) 및 신뢰성 향상에 큰 효과가 있다.Therefore, the present invention has a great effect on high quality of the finished product and improvement of reliability.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019930016474U KR950008515Y1 (en) | 1993-08-24 | 1993-08-24 | Head drum earth device of tape recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019930016474U KR950008515Y1 (en) | 1993-08-24 | 1993-08-24 | Head drum earth device of tape recorder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR950007157U KR950007157U (en) | 1995-03-21 |
| KR950008515Y1 true KR950008515Y1 (en) | 1995-10-11 |
Family
ID=19361849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019930016474U KR950008515Y1 (en) | 1993-08-24 | 1993-08-24 | Head drum earth device of tape recorder |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR950008515Y1 (en) |
-
1993
- 1993-08-24 KR KR2019930016474U patent/KR950008515Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR950007157U (en) | 1995-03-21 |
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