KR900003274Y1 - Balance device of headdrum - Google Patents
Balance device of headdrum Download PDFInfo
- Publication number
- KR900003274Y1 KR900003274Y1 KR2019860010962U KR860010962U KR900003274Y1 KR 900003274 Y1 KR900003274 Y1 KR 900003274Y1 KR 2019860010962 U KR2019860010962 U KR 2019860010962U KR 860010962 U KR860010962 U KR 860010962U KR 900003274 Y1 KR900003274 Y1 KR 900003274Y1
- Authority
- KR
- South Korea
- Prior art keywords
- drum
- balance
- head drum
- motor
- bowl
- Prior art date
Links
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
-
- 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
- G11B15/60—Guiding record carrier
- G11B15/61—Guiding record carrier on drum, e.g. drum containing rotating heads
Landscapes
- Facsimile Scanning Arrangements (AREA)
Abstract
내용 없음.No content.
Description
제1도는 종래의 헤드드럼의 구성을 보인 단면도.1 is a cross-sectional view showing the configuration of a conventional head drum.
제2도는 종래의 밸런싱 작업을 설명하기 위한 각부품도로서, a도는 상부드럼부의 저면도, b도는 플랜지부의 종단면도, c도는 모우터 회전자의 저면도.FIG. 2 is a part view for explaining a conventional balancing operation, in which a is a bottom view of an upper drum portion, b is a longitudinal cross-sectional view of a flange portion, and c is a bottom view of a motor rotor.
제3도는 본 고안이 설치된 헤드드럼의 단면도.3 is a cross-sectional view of the head drum in which the present invention is installed.
제4도는 본 고안의 결합된 상태의 저면도.Figure 4 is a bottom view of the combined state of the present invention.
제5도는 본 고안 조절판의 리브에 형성된 걸림요홈에 보올이 끼워진 상태를 설명하기 위한 확대도.Figure 5 is an enlarged view for explaining a state in which the bowl is fitted into the recess groove formed in the rib of the subject innovation control plate.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 상부드럼부 11 : 하부드럼부10: upper drum portion 11: lower drum portion
12 : 플랜지부 13 : 모우터부12: flange portion 13: motor portion
13a : 회전자 14, 14' : 리브13a: rotor 14, 14 ': rib
14a, 14'a : 걸림요홈 15 : 조절판14a, 14'a: hanging groove 15: throttle
18 : 보올18: bowl
본 고안은 브이씨알의 데크내부에 설치되는 헤드드럼의 밸런스장치에 관한 것으로, 특히 헤드드럼의 회전시 중량 편차로 인하여 발생되는 회전불균일 및 진동현상을 방지하여 화상의 안정된 재생 및 기록을 가능하게 한 밸런스 장치에 관한 것이다.The present invention relates to a balancing device of the head drum installed inside the deck of V-Cal, and in particular to prevent the rotation unevenness and vibration caused by the weight variation during the rotation of the head drum to enable a stable playback and recording of the image It relates to a balance device.
일반적으로 사용되는 브이씨알의 헤드드럼은 그 전형적인 일예를 제1도에 도시한 바와 같이 모우터(1)의 회전축(2)상부에 플랜지(3)가 고정되어 그 상측 외주면에는 하면에 헤드(4)가 부착되는 상부드럼(5)이 고정되고, 상부드럼(5)의 하측에는 상기 회전축(2)에 베어링(6)(6')의 개재하에 하부드럼(7)이 축착되어진다.In general, the head drum of V-Cal is used, as shown in FIG. 1, a flange 3 is fixed to the upper part of the rotating shaft 2 of the motor 1, and the head 4 is disposed on the lower surface of the upper outer circumferential surface thereof. The upper drum (5) to which is attached is fixed, and the lower drum (7) is condensed on the lower side of the upper drum (5) under the interposition of the bearings (6) and 6 '.
이와 같은 구조를 가지는 종래의 헤드드럼은 제2도에 도시한 바와 같이 크게 상부드럼부(가), 플랜지부(나), 모우터부(다)등으로 나뉘어져서 점선으로 도시한 바와 같이 일정부위에 드릴 가공한 밸런스 조절홈을 각각 형성하여 각부위의 밸런스를 맞춘 다음 이들을 조립하여 왔는바, 이러한 방법은 밸런싱작업이 까다롭고 복잡할 뿐만 아니라 일단 밸런스 조절이 된 상태의 각 부품들도 실제로는 어느 정도의 공차를 갖게 되므로 이들을 조립하게 되면 그 공차에 의하여 전체적인 밸런스가 맞지 않게 된다.The conventional head drum having such a structure is divided into the upper drum part (A), the flange part (B), the motor part (C), and the like, as shown in FIG. Each of the balance adjustment grooves are drilled to balance each part, and then assembled. This method is not only difficult and complicated to balance, but also to the extent that each part of the balance adjustment state actually has some degree. Since they have a tolerance of assembling them, the overall balance is not met by the tolerance.
따라서 이와 같이 정확히 밸런싱이 이루어지지 않은 상태의 헤드드럼은 회전이 불균일하게 되고 이에 따른 진동이 발생하여 화질의 저하 즉, 화면굴곡 및 유동현상을 유발하게 되는 문제점을 안게된다.Therefore, the head drum in a state in which the balance is not precisely performed is unevenly rotated, and thus vibrations are generated, thereby causing a problem of deterioration of image quality, that is, screen distortion and flow phenomenon.
본 고안에 있어서는 종래의 각 구성부품별로 밸런싱함에 따른 문제점을 배제하여 이들이 조립된 상태에서 밸런싱을 하게 함으로써 헤드드럼의 전체적인 밸런스를 정확하게 유지할 수 있게함과 동시에 그 작업공정도 아울러 단축시킬 수 있도록 한 것인바, 이와 같은 본 고안을 첨부 도면에 의하여 상세히 설명하면 다음과 같다.In the present invention, it is possible to eliminate the problems caused by balancing each conventional component so that they can be balanced in the assembled state so that the overall balance of the head drum can be accurately maintained and the work process can be shortened as well. Inba, the present invention as described in detail by the accompanying drawings as follows.
제3도 내지 제5도에 도시한 바와 같이 상부드럼부(10), 하부드럼부(11), 플랜지부(12), 모우터부(13)로 구성되는 헤드드럼에 있어서, 환상의 리브(14)(14')가 상호대향되게 하향돌설되어 그 내측에는 걸림요홈(14a)(14'a)이 형성되는 원판상의 조절판(15)을 형성하고, 그 조절판(15)은 일정부위에 천공된 통공(15a)(15a')에 고정나사(16)(16')를 삽입하여 상기 모우터부(13)의 회전자(13a)가 고정되는 칼라(17)에 고정하여 회전자(13a)의 화면에 결합되게하는 한편, 조절판(15)의 걸림요홈(14a)(14'a)에는 금속제의 보올(18)이 끼워질 수 있게 한 것이다.As shown in FIGS. 3 to 5, in the head drum including the upper drum portion 10, the lower drum portion 11, the flange portion 12, and the motor portion 13, the annular ribs 14 are provided. 14 'are projected downwards to face each other to form a disk-shaped adjusting plate 15 in which a locking groove 14a, 14'a is formed, and the adjusting plate 15 has a perforated hole at a predetermined position. The fixing screws 16 and 16 'are inserted into the 15a and 15a' to fix the collar 17 to which the rotor 13a of the motor unit 13 is fixed to the screen of the rotor 13a. On the other hand, it is to allow the metal bowl 18 to be fitted into the engaging groove (14a) (14 'a) of the adjustment plate (15).
이와 같은 구성을 가지는 본 고안은 상부드럼(10), 하부드럼부(11), 플랜지부(12) 그리고 모우터부(13)등의 헤드드럼을 구성하는 전부분이 결합된 상태에서 모우터부(13)의 호전자(13a)하면에 조절판(15)을 결합하여 밸런싱작업을 하게되므로 전체적인 밸런스를 용이하게 유지시켜줄 수가 있게 된다 .The present invention having the configuration as described above, the motor portion 13 in the state in which all parts constituting the head drum, such as the upper drum 10, lower drum portion 11, flange portion 12 and the motor portion 13 is coupled Since the balancing operation is performed by combining the control plate 15 on the lower surface of the arc 13a, the overall balance can be easily maintained.
즉, 밸런싱작업중에 부정확한 부위를 체크하여 조절판(15)의 하면에 돌설된 양 리브(14)(14')사이에 보올(18)을 끼워주게되면 리브(14)(14')는 제5도의 가상선으로 도시된 바와 같이 탄성적으로 벌어지면서 보올(18)이 걸림요홈(14a)(14'a)에 삽입되는 순간 다시 탄성복원력에 의하여 원상으로 복원되어 보올(18)을 압착하게 되므로 일단 삽입된 위치에서 임의로 이탈할 수 없게 된다.That is, when the inaccurate portion is checked during the balancing operation and the bowl 18 is inserted between the two ribs 14 and 14 'protruding from the lower surface of the adjusting plate 15, the ribs 14 and 14' are fifth. As shown in the phantom line of the figure, the elastic 18 is elastically opened and is restored to its original shape by elastic restoring force at the moment when the bowl 18 is inserted into the locking grooves 14a and 14'a, thereby compressing the bowl 18 once. Arbitrary escape from the inserted position will not be possible.
만약, 헤드드럼의 여러부분에서 밸런스도차가 발견되면 전기와 동일한 방법으로 수개의 보올(18)을 삽입하게 되면 간편하게 조정할 수 있을 것이다.If the balance difference is found in various parts of the head drum, inserting several bowls 18 in the same manner as before will be easy to adjust.
이상에서 상술한 바와 같은 본 고안은 모우터의 회전자 하면에 간단한 구조의 조절판을 부착하여 밸런싱작업시 밸런스오차가 발견되는 그 위치를 체크하여 양 리브사이의 걸림요홈에 보올을 끼워서 밸런스를 조절할 수 있게 되므로 밸런싱작업의 공정이 현저하게 단축됨은 물론 그 작업 또한 간편하게 되며, 또한 각 부품이 전부 결합된 상태에서 밸런싱작업을 할 수 있게 됨에 따라 정확한 밸런스유지가 용이하여 헤드드럼의 균일한 회전이 가능하게되므로 깨끗한 화상의 재생 및 기록을 할 수 있게 되는 효과를 제공해 준다.The present invention as described above, by attaching a control plate of a simple structure on the bottom of the rotor of the motor to check the position where the balance error is found in the balancing operation by adjusting the balance by inserting a bowl in the locking groove between the two ribs As a result, the process of balancing work is significantly shortened, and the work becomes simpler. Also, the balancing work can be carried out with all parts combined, so that the correct balance can be easily maintained, enabling even rotation of the head drum. This provides the effect of being able to reproduce and record clean images.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019860010962U KR900003274Y1 (en) | 1986-07-25 | 1986-07-25 | Balance device of headdrum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019860010962U KR900003274Y1 (en) | 1986-07-25 | 1986-07-25 | Balance device of headdrum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR880003182U KR880003182U (en) | 1988-04-11 |
| KR900003274Y1 true KR900003274Y1 (en) | 1990-04-20 |
Family
ID=19254159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019860010962U KR900003274Y1 (en) | 1986-07-25 | 1986-07-25 | Balance device of headdrum |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR900003274Y1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3136572B2 (en) * | 1992-05-19 | 2001-02-19 | ソニー株式会社 | Rotating head drum device |
-
1986
- 1986-07-25 KR KR2019860010962U patent/KR900003274Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR880003182U (en) | 1988-04-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH10131962A (en) | Bearing device | |
| JP3136572B2 (en) | Rotating head drum device | |
| KR900003274Y1 (en) | Balance device of headdrum | |
| JPH0427630B2 (en) | ||
| GB1567387A (en) | Head assembly for disc recorders | |
| US4890177A (en) | Guide drum assembly with built-in motor having floating rotor | |
| GB2273810A (en) | Rotary head drum assembly | |
| US5677816A (en) | Head drum assembly for use in a video cassette recorder | |
| JPH0318239A (en) | Vibration preventive structure for disc motor | |
| KR900004786Y1 (en) | Rotation balancing device according to the weight of head drum assembly of vtr | |
| KR920000851Y1 (en) | Rotary trans core fixing device for head drum | |
| KR930005597Y1 (en) | Trans gap regulating device for head drum | |
| JPS5910980A (en) | Electrophotographic device | |
| KR100189934B1 (en) | Head drum | |
| KR940001058Y1 (en) | Damper device for head drum assembly | |
| KR910009302Y1 (en) | Tape recorder drum device | |
| KR950000655Y1 (en) | Double damper device for head drum assembly | |
| KR920007313Y1 (en) | Head drum device for vcr | |
| KR940002828Y1 (en) | Head drum for tape recorder | |
| JPS61224116A (en) | Dynamic damper device | |
| KR0173359B1 (en) | Head height adjusting apparatus of head drum assembly | |
| KR0155094B1 (en) | Anti-resonating structure of head drum assembly | |
| KR930006029Y1 (en) | Frame for deck | |
| KR930003679Y1 (en) | Magnetic recording/reproducing head drum | |
| KR950001265Y1 (en) | Head drum assembly fixing device for vcr |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E701 | Decision to grant or registration of patent right | ||
| REGI | Registration of establishment | ||
| FPAY | Annual fee payment |
Payment date: 19971229 Year of fee payment: 9 |
|
| LAPS | Lapse due to unpaid annual fee |