KR20050106762A - Bulge apparatus for a head drum - Google Patents

Bulge apparatus for a head drum Download PDF

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Publication number
KR20050106762A
KR20050106762A KR1020040031791A KR20040031791A KR20050106762A KR 20050106762 A KR20050106762 A KR 20050106762A KR 1020040031791 A KR1020040031791 A KR 1020040031791A KR 20040031791 A KR20040031791 A KR 20040031791A KR 20050106762 A KR20050106762 A KR 20050106762A
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KR
South Korea
Prior art keywords
bulge
drum
lower drum
head drum
tape
Prior art date
Application number
KR1020040031791A
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Korean (ko)
Inventor
조부현
Original Assignee
주식회사 대우일렉트로닉스
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Priority to KR1020040031791A priority Critical patent/KR20050106762A/en
Publication of KR20050106762A publication Critical patent/KR20050106762A/en

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Classifications

    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07FCOIN-FREED OR LIKE APPARATUS
    • G07F19/00Complete banking systems; Coded card-freed arrangements adapted for dispensing or receiving monies or the like and posting such transactions to existing accounts, e.g. automatic teller machines
    • G07F19/20Automatic teller machines [ATMs]
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/12Delivering or advancing articles from machines; Advancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands or rollers
    • B65H29/14Delivering or advancing articles from machines; Advancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands or rollers and introducing into a pile
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00Feeding articles separated from piles; Feeding articles to machines
    • B65H5/06Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers
    • B65H5/066Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers the articles resting on rollers or balls
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S902/00Electronic funds transfer
    • Y10S902/08Terminal* with means permitting deposit or withdrawal, e.g. ATM

Abstract

본 발명은 헤드드럼(head drum)의 벌지(bulge)장치에 관한 것이다.The present invention relates to a bulge device of a head drum.

본 발명은, 벌지공이 일체로 형성되는 하부드럼 및 상기 벌지공에 끼워져 돌출되는 벌지돌기를 외주면상에 일체로 구비하고 상기 하부드럼의 내측에 끼워져 조립되는 링부재를 포함한다.The present invention includes a lower drum in which a bulge hole is integrally formed and a ring member integrally provided on the outer circumferential surface of the lower drum and fitted into the inner side of the lower drum.

따라서, 하부드럼의 벌지구조를 생산성이 높으면서 저렴한 비용으로 제조할 수 있는 효과가 있다.Therefore, there is an effect that the bulge structure of the lower drum can be manufactured at a low cost while having high productivity.

Description

헤드드럼의 벌지장치{BULGE APPARATUS FOR A HEAD DRUM}BULGE APPARATUS FOR A HEAD DRUM}

본 발명은 헤드드럼의 벌지장치에 관한 것으로서, 더욱 상세하게는 장시간 소요되는 선반 등의 기계가공이 아닌 조립에 의해 단시간내에 제조될 수 있어 생산성이 높고 제조비용이 저렴한 헤드드럼의 벌지장치에 관한 것이다.The present invention relates to a bulging device for a head drum, and more particularly, to a bulging device for a head drum, which can be manufactured in a short time by assembly rather than a machining such as a lathe that takes a long time, and thus has high productivity and low manufacturing cost. .

일반적으로, VCR(Video Cassette Recorder)은 카세트 테이프에 녹화된 내용을 재생하거나 외부로부터 들어오는 신호를 자기헤드를 통해 자기신호로 변환하여 카세트 테이프에 기록하는 기기로서, 주로 TV에 연결되어 병행 사용된다.In general, a VCR (Video Cassette Recorder) is a device for reproducing contents recorded on a cassette tape or converting a signal from an external source into a magnetic signal through a magnetic head and recording the cassette on a cassette tape, which is mainly connected to a TV and used in parallel.

이러한 VCR의 주요 구동 메커니즘에는 주행하는 테이프와 직접 접촉하여 신호를 재생하거나 기록하는 부분으로 헤드드럼(head drum)이 있다.The main driving mechanism of such a VCR includes a head drum as a part for directly reproducing or recording a signal in direct contact with a running tape.

종래의 헤드드럼을 도 1 내지 도 3을 참조로 설명하면, 헤드드럼(1)은 일정한 기울기로 경사지게 고정 설치되는 원통형의 하부드럼(3)과, 하부드럼(3)의 상부에 축을 중심으로 회전가능하도록 설치되며 그 저면에 복수개의 자기헤드(6a, 6b)가 외측으로 미세 돌출되도록 설치되는 상부드럼(2)으로 크게 구성된다.Referring to the conventional head drum with reference to Figs. 1 to 3, the head drum 1 is rotated about an axis on the lower drum 3 and the cylindrical lower drum 3 is installed to be fixed inclined at a constant inclination; It is largely composed of an upper drum (2) which is installed to be possible and installed on the bottom thereof so that the plurality of magnetic heads (6a, 6b) are finely projected outward.

테이프(T)는 헤드드럼(1)의 양측으로 각각 배치되는 가이드폴(4, 5)에 안내되어 헤드드럼(1)의 외주면을 소정의 각도범위에 걸쳐서 접촉하면서 X 화살표 방향으로 주행한다.The tape T is guided to the guide poles 4 and 5 respectively disposed on both sides of the head drum 1 to travel in the direction of the X arrow while contacting the outer circumferential surface of the head drum 1 over a predetermined angle range.

통상적인 헬리컬 스캔 방식(helical scan type)에 의한 VCR에 있어서는 테이프(T)가 헤드드럼(1)의 외주면인 가이드면에 나선형으로 감기어서 주행하며, 이를 위해 하부드럼(3)의 외주면상에는 테이프(T)의 하단부를 가이드하도록 안내턱인 리드라인(3a)이 경사지게 형성되어 있다. 이에 따라, 테이프(T)는 헤드드럼(1)의 입구부분에서는 폭방향의 대부분이 상부드럼(2)측에 위치하며, 출구부분에서는 반대로 폭방향의 대부분이 하부드럼(3)측에 위치하도록 주행한다. In the VCR according to the conventional helical scan type, the tape T is spirally wound around the guide surface, which is the outer circumferential surface of the head drum 1, and for this purpose, the tape T is formed on the outer circumferential surface of the lower drum 3. The guideline lead line 3a is formed to be inclined to guide the lower end of T). Accordingly, in the inlet portion of the head drum 1, the tape T is positioned at the upper drum 2 side in the width direction, and at the outlet portion in the width direction at the lower drum 3 side. Drive.

이때, 상부드럼(2)의 저면에 설치된 자기헤드(6a, 6b)가 Y 화살표 방향으로 고속으로 회전하면서 테이프(T)를 길이방향에 대하여 입구측에서 출구측까지 경사지게 스캔(scann)하여 신호를 기록 또는 재생한다.At this time, the magnetic heads 6a and 6b provided on the bottom surface of the upper drum 2 rotate at a high speed in the direction of the Y arrow, and the tape T is inclinedly scanned from the inlet side to the outlet side with respect to the longitudinal direction to signal it. Record or play back.

여기서, 입구측이란 테이프(T)가 헤드드럼(1)과 접촉하기 시작하여 인입되는 지점 부분을, 출구측은 접촉이 끝나 이탈되는 지점 부분을 말한다.Here, the inlet side refers to the point portion where the tape T starts to contact the head drum 1 and is drawn in, and the outlet side refers to the point portion where the contact ends and is released.

나아가, 테이프(T)는 소정의 텐션으로 가이드면에 밀착되어 주행하므로 돌출된 자기헤드(6a, 6b)가 테이프 스캔을 마치고 이탈되어 빠져 나갈 때, 출구측에서 테이프(T)의 텐션변화가 발생하게 되며, 이로 인한 테이프(T)의 진동현상에 의해 화면에 노이즈가 발생하게 된다.Furthermore, since the tape T travels in close contact with the guide surface with a predetermined tension, when the protruding magnetic heads 6a and 6b are separated from the tape scan and exit, the tension change of the tape T occurs at the exit side. As a result, noise is generated on the screen due to the vibration phenomenon of the tape T.

따라서, 하부드럼(3)의 출구측 상단에 벌지(bulge)(3b)를 가이드면으로부터 미세하게 돌출되도록 일체로 형성하여, 자기헤드(6a, 6b)가 출구측으로 빠져 나갈 때 발생하는 테이프(T)의 텐션변화를 방지하도록 하고 있다.Therefore, the tape T generated when the magnetic heads 6a and 6b exit to the exit side by integrally forming a bulge 3b at the upper end of the exit side of the lower drum 3 so as to protrude finely from the guide surface. ) To prevent tension changes.

그러나, 하부드럼(3)에 벌지(3b)를 일체로 형성함에 있어서, 먼저 원통형의 하부드럼(3)을 다이캐스팅을 통해 제조한 후 그 외주면을 선반 등으로 기계가공하여 벌지(3b)를 돌출되게 형성하므로, 이에 따라 그 가공에 상당한 작업시간과 비용이 소요되고 있다.However, in integrally forming the bulge 3b on the lower drum 3, first, the cylindrical lower drum 3 is manufactured through die casting, and then the outer peripheral surface thereof is machined by a lathe or the like to protrude the bulge 3b. As a result, it requires a considerable working time and cost for the processing.

본 발명은 상기와 같은 제반 문제점을 해결하기 위하여 창안된 것으로서, 하부드럼의 벌지형성위치에 벌지공을 일체로 형성하고, 이 벌지공에 삽입되어 돌출되는 벌지돌기를 외주면에 구비하는 링부재를 하부드럼의 내측에 조립하는 방식으로 제조될 수 있어, 그 제조시간 및 비용을 저감할 수 있는 헤드드럼의 벌지장치를 제공하는데 그 목적이 있다.The present invention has been made to solve the above problems, the ring member having a bulge hole integrally formed at the bulge forming position of the lower drum, the bulge protrusion is inserted into the bulge hole protruding on the outer peripheral surface It is an object of the present invention to provide a bulging device for a head drum that can be manufactured by assembling the inside of a drum, thereby reducing its manufacturing time and cost.

상술한 목적을 달성하기 위한 본 발명은, 벌지공이 일체로 형성되는 하부드럼 및 상기 벌지공에 끼워져 돌출되는 벌지돌기를 외주면상에 일체로 구비하고 상기 하부드럼의 내측에 끼워져 조립되는 링부재를 포함하는 헤드드럼의 벌지장치를 제공한다.The present invention for achieving the above object comprises a lower drum integrally formed with a bulge ball and a ring member integrally provided on the outer circumferential surface of the bulge projection protruding into the bulge hole and fitted into the inner side of the lower drum. It provides a bulging device of the head drum.

바람직하게, 상기 하부드럼의 내주면상에는 조립되는 상기 링부재의 하단부를 지지하는 지지턱이 일체로 형성될 수 있다.Preferably, the support jaw for supporting the lower end of the ring member to be assembled may be integrally formed on the inner peripheral surface of the lower drum.

본 발명의 상기 목적과 여러가지 장점은 이 기술분야에 숙련된 사람들에 의해 첨부된 도면을 참조하여 아래에 기술되는 발명의 바람직한 실시예로부터 더욱 명확하게 될 것이다.The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings by those skilled in the art.

이하, 첨부된 도면을 참조로 본 발명의 바람직한 실시예를 상세히 설명하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 4는 본 발명에 따른 헤드드럼의 벌지장치를 설명하는 분리사시도이고, 도 5는 그 벌지구조를 나타내는 요부단면도이다.Figure 4 is an exploded perspective view illustrating the bulging device of the head drum according to the present invention, Figure 5 is a sectional view of the main part showing the bulge structure.

본 발명에 따르면, 하부드럼(3)의 테이프 출구측인 벌지형성위치에 벌지공(3b')이 일체로 형성되도록 하며, 이것은 한번의 다이캐스팅으로 제조가능하다.According to the present invention, the bulge hole 3b 'is integrally formed at the bulge forming position at the tape outlet side of the lower drum 3, which can be manufactured by one die casting.

한편, 소정높이로 돌출되는 벌지돌기(30b')를 외주면상에 일체로 구비하고 하부드럼(3)의 상단측 내주면과 밀착되는 외경을 갖는 링부재(30)가 별도로 제조되며, 그 제조는 프레스가공에 의해 이루어질 수 있다.On the other hand, the ring member 30 having an outer diameter in close contact with the inner peripheral surface of the upper end of the lower drum 3 is integrally provided with the bulge protrusion 30b 'protruding at a predetermined height and manufactured separately. By processing.

이러한 링부재는 하부드럼(3)의 상부 내측으로 끼워져 조립되며, 이때 링부재(30)의 벌지돌기(30b')가 하부드럼(3)의 벌지공(3b')으로 끼워져 외측으로 돌출되게 된다.The ring member is fitted into the upper inside of the lower drum (3), the bulge projection (30b ') of the ring member 30 is fitted into the bulge hole (3b') of the lower drum (3) to protrude outward. .

여기서, 벌지돌기(30b')의 선단은 테이프(T)와의 마찰을 고려하여 라운드진 형태를 가질 수 있으며, 하부드럼(3)의 내주면상에는 장착되는 링부재(30)의 하단부를 지지하는 지지턱(3c)이 일체로 형성될 수 있다.Here, the tip of the bulge protrusion (30b ') may have a rounded shape in consideration of the friction with the tape (T), the support jaw for supporting the lower end of the ring member 30 is mounted on the inner peripheral surface of the lower drum (3) 3c can be formed integrally.

따라서, 본 발명에 따르면, 장시간 소요되는 선반 등의 기계가공이 아닌 조립방식을 통해 벌지구조를 형성할 수 있어, 그 생산성이 향상되고 제조비용을 절감할 수 있게 되는 것이다.Therefore, according to the present invention, it is possible to form a bulge structure through an assembly method rather than a machining such as a shelf that takes a long time, it is possible to improve the productivity and reduce the manufacturing cost.

이상, 상기 내용은 본 발명의 바람직한 일 실시예를 단지 예시한 것으로 본 발명의 당업자는 본 발명의 요지를 변경시킴이 없이 본 발명에 대한 수정과 변경을 가할 수 있음을 인지해야 한다.In the foregoing description, it should be understood that those skilled in the art can make modifications and changes to the present invention without changing the gist of the present invention as merely illustrative of a preferred embodiment of the present invention.

본 발명에 따르면, 하부드럼의 벌지구조를 생산성이 높으면서 저렴한 비용으로 제조할 수 있는 효과가 달성될 수 있다.According to the present invention, the effect of being able to manufacture the bulge structure of the lower drum at a low cost with high productivity can be achieved.

도 1은 통상적인 VCR의 테이프주행계를 개략적으로 나타내는 평면도,1 is a plan view schematically showing a tape running system of a conventional VCR;

도 2는 종래의 헤드드럼의 벌지를 보여주는 정면도,Figure 2 is a front view showing the bulge of the conventional head drum,

도 3은 종래의 벌지구조를 나타내는 요부단면도,3 is a sectional view of a main portion showing a conventional bulge structure;

도 4는 본 발명에 따른 헤드드럼의 벌지장치를 설명하는 분리사시도,4 is an exploded perspective view illustrating a bulging device of a head drum according to the present invention;

도 5는 본 발명에 따른 벌지구조를 나타내는 요부단면도이다.5 is a sectional view showing the main parts of the bulge structure according to the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

1 : 헤드드럼 2 : 상부드럼1: Head drum 2: Upper drum

3 : 하부드럼 3a : 리드라인3: lower drum 3a: lead line

3b : 벌지(bulge) 3b' : 벌지공3b: Bulge 3b ': Bulge Ball

3c : 지지턱 4, 5 : 가이드폴3c: support jaw 4, 5: guide pole

6a, 6b : 자기헤드 30 : 링부재6a, 6b: magnetic head 30: ring member

30b' : 벌지돌기 T : 테이프30b ': Bulge bump T: Tape

Claims (2)

벌지공이 일체로 형성되는 하부드럼 및Lower drum is formed integrally with the bulge ball and 상기 벌지공에 끼워져 돌출되는 벌지돌기를 외주면상에 일체로 구비하고 상기 하부드럼의 내측에 끼워져 조립되는 링부재를 포함하는 헤드드럼의 벌지장치.The bulging device of the head drum including a ring member which is integrally provided on the outer circumferential surface and fitted into the bulging hole protruding into the bulging hole and assembled to the inner side of the lower drum. 제 1 항에 있어서,The method of claim 1, 상기 하부드럼의 내주면상에는 조립되는 상기 링부재의 하단부를 지지하는 지지턱이 일체로 형성되는 것을 특징으로 하는 헤드드럼의 벌지장치.The bulging device of the head drum, characterized in that the supporting jaw is integrally formed on the inner peripheral surface of the lower drum to support the lower end of the ring member to be assembled.
KR1020040031791A 2004-05-06 2004-05-06 Bulge apparatus for a head drum KR20050106762A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020040031791A KR20050106762A (en) 2004-05-06 2004-05-06 Bulge apparatus for a head drum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020040031791A KR20050106762A (en) 2004-05-06 2004-05-06 Bulge apparatus for a head drum

Publications (1)

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KR20050106762A true KR20050106762A (en) 2005-11-11

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Family Applications (1)

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KR1020040031791A KR20050106762A (en) 2004-05-06 2004-05-06 Bulge apparatus for a head drum

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KR (1) KR20050106762A (en)

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