KR200198115Y1 - Grounding structure for head drum - Google Patents
Grounding structure for head drum Download PDFInfo
- Publication number
- KR200198115Y1 KR200198115Y1 KR2019970042172U KR19970042172U KR200198115Y1 KR 200198115 Y1 KR200198115 Y1 KR 200198115Y1 KR 2019970042172 U KR2019970042172 U KR 2019970042172U KR 19970042172 U KR19970042172 U KR 19970042172U KR 200198115 Y1 KR200198115 Y1 KR 200198115Y1
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- KR
- South Korea
- Prior art keywords
- drum
- base
- grounding
- main chassis
- fixed
- 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
- G11B5/10—Structure or manufacture of housings or shields for heads
- G11B5/11—Shielding of head against electric or magnetic fields
- G11B5/112—Manufacture of shielding device
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- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/1272—Assembling or shaping of elements
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- 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
- G11B5/531—Disposition of more than one recording or reproducing head on support rotating cyclically around an axis
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- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
개시된 헤드드럼의 접지구조체는, 접지를 위한 어스브러쉬가 메인샤시에 체결되어서, 일측이 고정드럼을 드럼베이스에 체결하는 체결부재에 접촉되고, 타측이 회전드럼의 회전축을 이루는 회전샤프트의 단부와 접촉되도록 된 것을 특징으로 한다. 이와 같은 구성의 접지구조체는, 헤드드럼을 구성하는 고정드럼 및 회전드럼을 드럼베이스를 경유하지 않고 직접 메인샤시에 접지시키기 때문에, 드럼베이스가 비전도성의 모울드물인 경우에도 적합하게 채용될 수 있다. 따라서 드럼베이스를 저가(低價)인 모울드물로 대체하여도 접지에 아무 문제가 없게 된다.The ground structure of the disclosed head drum is connected to the fastening member for fastening the grounding drum to the main chassis so that one side contacts the fastening member for fastening the fixed drum to the drum base, and the other side contacts the end portion of the rotating shaft which forms the rotation axis of the rotating drum. Characterized as possible. Such a grounding structure can be suitably employed even when the drum base is a non-conductive mold, since the fixed drum and the rotating drum constituting the head drum are directly grounded to the main chassis without passing through the drum base. Therefore, there is no problem in grounding even if the drum base is replaced with low-cost mold water.
Description
본 고안은 헤드드럼의 접지구조체에 관한 것으로서, 특히 헤드드럼이 안착되는 드럼베이스가 비전도성 재질인 경우에 적합한 헤드드럼의 접지구조체에 관한 것이다.The present invention relates to a grounding structure of a head drum, and more particularly to a grounding structure of a head drum suitable when the drum base on which the head drum is seated is a non-conductive material.
예컨대 캠코더(camcorder)와 같이 헤드드럼을 사용하는 자기기록/재생장치에는, 그 헤드드럼으로부터 정전기를 제거하여 노이즈신호의 혼입을 막기 위한 접지구조체가 마련되어 있다.For example, a magnetic recording / reproducing apparatus using a head drum such as a camcorder is provided with a grounding structure for removing static electricity from the head drum to prevent the mixing of noise signals.
도 1 및 도 2는 종래의 접지구조체가 채용된 헤드드럼을 도시하고 있다. 도시된 바와 같이, 먼저 헤드드럼(10)은, 제1,2,3스크류(S1)(S2)(S3)에 의해 드럼베이스(13)에 고정되는 고정드럼(12)과, 그 고정드럼(12) 위에 회전가능하게 설치되는 회전드럼(11)으로 구성되며, 상기 드럼베이스(13)는 제4,5,6스크류(S4)(S5)(S6)에 의해 메인샤시(15)상에 고정된다. 여기서 상기 드럼베이스(13)는 예컨대 알루미늄과 같은 도전성 재질로 이루져 있다. 그리고 상기 드럼베이스(13)의 하면에는 상기한 접지구조체로서, 일단(14a)이 상기 제1스크류(S1)에 의해 드럼베이스(13)에 체결되고, 타단은 상기 회전드럼(11)의 회전샤프트(11a) 하단과 접촉되는 어스브러쉬(earth brush;14)가 설치되어 있다.1 and 2 show a head drum employing a conventional grounding structure. As shown, first, the head drum 10 includes a fixed drum 12 fixed to the drum base 13 by first, second, and third screws S1, S2, and S3, and a fixed drum thereof. 12) is composed of a rotating drum (11) rotatably installed on the drum base 13 is fixed on the main chassis (15) by the fourth, fifth, sixth screw (S4) (S5) (S6). do. Here, the drum base 13 is made of a conductive material such as aluminum. The lower surface of the drum base 13 is the ground structure described above, and one end 14a is fastened to the drum base 13 by the first screw S1, and the other end thereof is a rotary shaft of the rotary drum 11. (11a) An earth brush 14 in contact with the lower end is provided.
따라서 상기 고정드럼(12)은 상기 제1,2,3스크류(S1)(S2)(S3)에 의해 도전성의 드럼베이스(13)에 접지되어 있고, 상기 회전드럼(11)은 상기 회전샤프트(11a)와 상기 어스브러쉬(14)의 타단(14b)을 통해 역시 드럼베이스(13)에 접지된다. 그리고 이 드럼베이스(13)는 상술한 바와 같이 제4,5,6스크류(S4)(S5)(S6)에 의해 메인샤시(15)에 결합되어 있기 때문에, 결국 고정드럼(12) 및 회전드럼(11)은 모두 상기 드럼베이스(13)를 경유하여 메인샤시(15)에 접지되는 것이다.Accordingly, the fixed drum 12 is grounded to the conductive drum base 13 by the first, second, and third screws S1, S2, and S3, and the rotating drum 11 is rotated by the rotary shaft ( 11a) and the other end 14b of the earth brush 14 are also grounded to the drum base 13. Since the drum base 13 is coupled to the main chassis 15 by the fourth, fifth and sixth screws S4, S5 and S6 as described above, the fixed drum 12 and the rotating drum All of 11 is grounded to the main chassis 15 via the drum base 13.
그런데, 최근의 추세는 제품의 단가를 절감하기 위한 노력의 일환으로서, 상기 드럼베이스(13)를 고가의 알루미늄 다이캐스팅 대신에 모울드물로 제조하고자 하는 방향으로 진행되고 있다. 그러나 모울드물은 비전도성 재질이기 때문에, 드럼베이스(13)를 모울드물로 제조할 경우에는, 상기한 구조의 접지구조체는 사용할 수가 없게 된다. 즉, 상기한 종래의 접지구조체는, 회전드럼(11) 및 고정드럼(12) 모두가 드럼베이스(13)를 경유하여 메인샤시(15)에 접지되도록 구성되어 있어서, 이 접지구조체로는 드럼베이스(13)를 모울드물로 대체할 수가 없는 것이다.By the way, the recent trend is progressing in a direction to manufacture the drum base 13 as a mold instead of expensive aluminum die casting as part of efforts to reduce the unit cost of the product. However, since the mold material is a non-conductive material, when the drum base 13 is made of the mold material, the ground structure of the above structure cannot be used. That is, the above-described conventional grounding structure is configured such that both the rotating drum 11 and the fixed drum 12 are grounded to the main chassis 15 via the drum base 13, and this grounding structure is a drum base. (13) cannot be replaced with mold water.
따라서 드럼베이스가 비전도성인 경우에도 사용할 수 있는 다른 형태의 접지구조체가 요망되고 있다.Accordingly, there is a need for another type of grounding structure that can be used even when the drum base is non-conductive.
본 고안은 상기의 점을 감안하여 안출된 것으로서, 헤드드럼이 안착되는 드럼베이스가 비전도성 재질인 경우에도 사용될 수 있는 헤드드럼의 접지구조체를 제공하는데 그 목적이 있다.The present invention has been made in view of the above point, the object is to provide a grounding structure of the head drum that can be used even when the drum base on which the head drum is mounted is a non-conductive material.
도 1은 종래 헤드드럼의 접지구조체를 보인 분리사시도,1 is an exploded perspective view showing a grounding structure of a conventional head drum,
도 2는 도 1에 도시된 접지구조체의 개략적인 측면도,FIG. 2 is a schematic side view of the grounding structure shown in FIG. 1;
도 3은 본 고안에 따른 헤드드럼의 접지구조체를 보인 분리사시도.Figure 3 is an exploded perspective view showing a ground structure of the head drum according to the present invention.
도 4는 도 3에 도시된 접지구조체의 결합 및 접촉관계를 설명하기 위해 그 요부를 개략적으로 도시한 도면.4 is a view schematically showing the main parts thereof to explain the coupling and contact relationship of the grounding structure shown in FIG.
< 도면의 주요부분에 대한 부호의 설명 ><Description of Symbols for Major Parts of Drawings>
100...헤드드럼 110...회전드럼100 ... Head drum 110 ... Rotating drum
111...회전샤프트 120...고정드럼111 Rotation shaft 120 Fixed drum
130...드럼베이스 140...어스브러쉬130 ... drum base 140 ... earth brush
150...메인샤시150 Main Chassis
상기의 목적을 달성하기 위한 본 고안은, 소정 체결부재에 의해 드럼베이스에 체결되는 고정드럼 및 그 고정드럼에 회전가능하게 결합되는 회전드럼을 각각 메인샤시에 접지시키기 위한 어스브러쉬를 구비하여 된 헤드드럼의 접지구조체에 있어서, 상기 어스브러쉬가, 상기 메인샤시에 체결되어서, 일측이 상기 체결부재에 접촉되고, 타측이 상기 회전드럼의 회전축을 이루는 회전샤프트의 단부와 접촉되도록 된 것을 특징으로 한다.The present invention for achieving the above object, the head provided with an earth brush for grounding the fixed drum fastened to the drum base by a predetermined fastening member and the rotating drum rotatably coupled to the fixed drum to the main chassis, respectively. In the ground structure of the drum, the earth brush is fastened to the main chassis, the one side is in contact with the fastening member, the other side is characterized in that the contact with the end of the rotary shaft forming the rotation axis of the rotating drum.
이하 첨부된 도면을 참조하면서 본 고안에 따른 바람직한 실시예를 상세히 설명하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 3 및 도 4는 본 고안에 따른 헤드드럼의 접지구조체를 나타낸다.3 and 4 show a grounding structure of the head drum according to the present invention.
우선 메인샤시(150)에 고정되는 드럼베이스(130)는 비전도성인 모울드물인 것으로 가정한다. 그리고 이 드럼베이스(130)에는 복수의 스크류(P1)(P2)(P3)에 의해 고정드럼(120)이 결합되고, 상기 고정드럼(120) 상에 회전드럼(110)이 회전가능하게 설치된다. 또한 이 회전드럼(110)의 회전축을 이루는 회전샤프트(111)는 상기 고정드럼(120)을 관통하여 하부로 돌출되어 있다. 그리고 상기 회전드럼(110) 및 고정드럼(120)을 메인샤시(150)에 접지시키기 위한 어스브러쉬(140)가 설치되는데, 이 어스브러쉬(140)는 도 4에 도시된 바와 같이 그 중앙부가 메인샤시(150)에 체결되고, 일측 단부(141)는 상기 고정드럼(120)을 드럼베이스(130)에 체결하는 복수의 스크류(P1)(P2)(P3) 중 어느 하나(P3)에 접촉되며, 타측 단부(142)는 상기 회전샤프트(111)의 돌출된 하단부에 접촉된다. 도면의 참조부호 P7은 상기 어스브러쉬(140)를 메인샤시(150)에 체결하는 스크류를 나타내며, 참조부호 151은 어스브러쉬(140)에 형성된 홀(143)을 통해 끼워지는 돌기부로서, 이는 어스브러쉬(140)를 메인샤시(150)에 체결할 때 체결위치를 가이드하여 그 양측 단부(141)(142)의 접촉 위치가 어긋나지 않도록 가이드해주는 역할을 한다.First, it is assumed that the drum base 130 fixed to the main chassis 150 is a non-conductive mold. A fixed drum 120 is coupled to the drum base 130 by a plurality of screws P1, P2, and P3, and a rotating drum 110 is rotatably installed on the fixed drum 120. . In addition, the rotary shaft 111 constituting the rotary shaft of the rotary drum 110 protrudes downward through the fixed drum 120. In addition, an earth brush 140 for grounding the rotating drum 110 and the fixed drum 120 to the main chassis 150 is installed, and the center of the earth brush 140 is shown in FIG. Is fastened to the chassis 150, one end 141 is in contact with any one (P3) of a plurality of screws (P1) (P2) (P3) for fastening the fixed drum 120 to the drum base 130 The other end 142 is in contact with the protruding lower end of the rotary shaft 111. In the drawing, reference numeral P7 denotes a screw for fastening the earth brush 140 to the main chassis 150, and reference numeral 151 denotes a protrusion fitted through the hole 143 formed in the earth brush 140, which is an earth brush. When fastening the 140 to the main chassis 150, the fastening position guides the fastening position so that the contact positions of the end portions 141 and 142 are not misaligned.
이와 같은 구조에 있어서는, 상기 고정드럼(120)이 상기 스크류(P3) 및 어스브러쉬(140)의 일측 단부(141)를 통해 메인샤시(150)에 접지되고, 상기 회전드럼(110)은 상기 회전샤프트(111)와 어스브러쉬(140)의 타측 단부(142)를 통해 메인샤시(150)에 접지된다. 즉, 상기 회전드럼(110) 및 고정드럼(120)이 드럼베이스(130)를 경유하지 않고 상기 어스브러쉬(140)에 의해 직접 메인샤시(150)에 접지되도록 구성된 것이다.In this structure, the fixed drum 120 is grounded to the main chassis 150 through one end 141 of the screw (P3) and the earth brush 140, the rotating drum 110 is rotated It is grounded to the main chassis 150 through the other end 142 of the shaft 111 and the earth brush 140. That is, the rotating drum 110 and the fixed drum 120 are configured to be directly grounded to the main chassis 150 by the earth brush 140 without passing through the drum base 130.
따라서 드럼베이스(130)가 도전성 재질이든 비전도성 재질이든 상관없이, 헤드드럼(100)의 고정드럼(120) 및 회전드럼(110)을 각각 메인샤시(150)에 접지시킬 수 있게 된다.Therefore, regardless of whether the drum base 130 is a conductive material or a non-conductive material, the fixed drum 120 and the rotating drum 110 of the head drum 100 can be grounded to the main chassis 150, respectively.
상술한 바와 같이 본 고안에 따른 헤드드럼의 접지구조체는, 헤드드럼을 구성하는 고정드럼 및 회전드럼을 드럼베이스를 경유하지 않고 직접 메인샤시에 접지시키기 때문에, 상기 드럼베이스가 비전도성의 모울드물인 경우에도 적합하게 채용될 수 있다. 따라서 본 고안의 접지구조체를 채용하면, 상기 드럼베이스를 저가(低價)인 모울드물로 대체하여도 접지에 아무 문제가 없게 된다.As described above, since the grounding structure of the head drum according to the present invention grounds the fixed drum and the rotating drum constituting the head drum directly to the main chassis without passing through the drum base, the drum base is a non-conductive mold material. It can also be suitably employed. Therefore, if the grounding structure of the present invention is adopted, there is no problem in grounding even if the drum base is replaced with a low-cost mold material.
본 고안은 상기에 설명되고 도면에 예시된 것에 의해 한정되는 것은 아니며, 다음에 기재되는 청구의 범위 내에서 더 많은 변형 및 변용예가 가능한 것임은 물론이다.The present invention is not limited to the above described and illustrated in the drawings, of course, more variations and modifications are possible within the scope of the claims set out below.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019970042172U KR200198115Y1 (en) | 1997-12-29 | 1997-12-29 | Grounding structure for head drum |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019970042172U KR200198115Y1 (en) | 1997-12-29 | 1997-12-29 | Grounding structure for head drum |
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| KR19990029507U KR19990029507U (en) | 1999-07-26 |
| KR200198115Y1 true KR200198115Y1 (en) | 2000-10-02 |
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| KR101255345B1 (en) * | 2011-10-24 | 2013-04-16 | 도시바삼성스토리지테크놀러지코리아 주식회사 | Optical disc drive |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100437113B1 (en) * | 2001-12-26 | 2004-06-23 | 삼성전자주식회사 | head-drum assembly for magnetic recording/reading apparatus |
-
1997
- 1997-12-29 KR KR2019970042172U patent/KR200198115Y1/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101255345B1 (en) * | 2011-10-24 | 2013-04-16 | 도시바삼성스토리지테크놀러지코리아 주식회사 | Optical disc drive |
| US8752079B2 (en) | 2011-10-24 | 2014-06-10 | Toshiba Samsung Storage Technology Korea Cooperation | Optical disc drive including spindle motor assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| KR19990029507U (en) | 1999-07-26 |
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