KR940002828Y1 - Head drum for tape recorder - Google Patents

Head drum for tape recorder Download PDF

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Publication number
KR940002828Y1
KR940002828Y1 KR2019910011084U KR910011084U KR940002828Y1 KR 940002828 Y1 KR940002828 Y1 KR 940002828Y1 KR 2019910011084 U KR2019910011084 U KR 2019910011084U KR 910011084 U KR910011084 U KR 910011084U KR 940002828 Y1 KR940002828 Y1 KR 940002828Y1
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KR
South Korea
Prior art keywords
drum
tape recorder
magnetic recording
head
lower drum
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KR2019910011084U
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Korean (ko)
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KR930003392U (en
Inventor
최진승
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삼성전자 주식회사
강진구
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Priority to KR2019910011084U priority Critical patent/KR940002828Y1/en
Publication of KR930003392U publication Critical patent/KR930003392U/en
Application granted granted Critical
Publication of KR940002828Y1 publication Critical patent/KR940002828Y1/en

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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
    • 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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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mounting Of Bearings Or Others (AREA)

Abstract

내용 없음.No content.

Description

테이프레코더의 자기기록 / 재생용 헤드드럼Head drum for magnetic recording and playback of tape recorders

제 1 도는 종래 테이프레코더의 자기기록/재생용 헤드드럼용 도시한 단면도.1 is a sectional view showing a head drum for magnetic recording / reproducing of a conventional tape recorder.

제 2 도는 본 고안에 따른 테이프레코더의 자기기록/재생용 헤드드럼을 도시한 단면도.2 is a cross-sectional view showing a head drum for magnetic recording / reproducing of a tape recorder according to the present invention.

제 3a, b 도는 본 고안에 따른 테이프레코더의 자기기록/재생용 헤드드럼에 있어 하부드럼과 이에 결합고정된 베어링을 발췌하여 도시한 단면도 및 평면도.Figure 3a, b is a cross-sectional view and a plan view showing an extract of the lower drum and the bearing fixed to it in the magnetic recording / playback head drum of the tape recorder according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

20 : 회전축 30 : 상부드럼20: axis of rotation 30: upper drum

30a : 헤드 40, 40' : 상, 하부베어링30a: Head 40, 40 ': Upper, lower bearing

50 : 하부드럼 60 : 세트 스크류50: lower drum 60: set screw

50a : 중공부 60a : 나사구멍50a: hollow portion 60a: screw hole

본 고안은 테이프레코더의 자기기록/재생용 헤드드럼에 관한 것이다.The present invention relates to a head drum for magnetic recording / playback of a tape recorder.

일반적으로 종래 테이프레코더의 자기기록/재생용 헤드드럼은 제 1 도에 도시된 바와 같이 회전축(2)에 의해 지지되며 그저면에 헤드(3a)가 설치된 상부드럼(3)과, 상기 상부드럼(3)의 회전(2)결합되는 상, 하부베어링(4), (4')이 설치되도록 중공부(5a)를 갖는 하부드럼(5)과, 상기 하부드럼(5) 저면에 설치되며 상기 상부드럼(3)의 회전축(2)을 구동시키는 드럼모터(M)를 구비하여 구성된다.In general, a magnetic recording / reproducing head drum of a conventional tape recorder is supported by a rotating shaft (2) as shown in FIG. 1 and has an upper drum (3) provided with a head (3a) at its bottom, and the upper drum ( 3) the lower drum (5) having a hollow portion (5a) and the lower drum (5) is installed so that the upper, lower bearings (4) and (4 ') coupled to the rotation (2) are installed and And a drum motor (M) for driving the rotating shaft (2) of the drum (3).

상기와 같이 구성된 종래 테이프레코더의 자기기록/재생용헤드드럼(1)은, 하부드럼(5) 저면에 설치된 드럼모터(M)의 구동에 의해 회전축(2)을 회전시킴으로써 상기 회전축(2)에 의해 지지된 상부드럼(3)이 회전되어 그 저면에 설치된 헤드(3a)에 의해 헤드드럼(1)이 자기기록 및 재생작용을 하는 것이다. 이때 상기 회전축(2)의 회전이 원할하도록 하부드럼(5) 중공부(5a) 중공부(5s)의 상, 하부 베어링(4), (4')이 설치되어 있는데, 특히 하부드럼(5)의 하부에 하부베어링(4') 설치함에 있어서, 상기 하부드럼(5)의 중공부 (5a)에 하부 베어링(4') 설치하기 위해서는 상기 중공부(5a)의 직경이 하부베어링(4')의 직경보다 다소크게 형성되어야 했다.The magnetic recording / reproducing head drum 1 of the conventional tape recorder configured as described above is rotated on the rotating shaft 2 by rotating the rotating shaft 2 by the driving of the drum motor M provided on the bottom surface of the lower drum 5. The upper drum 3 supported by the rotation is rotated so that the head drum 1 performs the magnetic recording and reproducing function by the head 3a provided on the bottom surface thereof. At this time, the upper and lower bearings 4 and 4 'of the lower drum 5, the hollow part 5a, the hollow part 5s are installed so that the rotation of the rotary shaft 2 is smooth, and in particular, the lower drum 5 In the installation of the lower bearing 4 'in the lower portion, in order to install the lower bearing 4' in the hollow portion 5a of the lower drum 5, the diameter of the hollow portion 5a is lower in the lower bearing 4 '. It should be formed somewhat larger than the diameter of.

이로 인해서는 상기 하부드럼(5)이 회전축(2)에 대해 심한 흔들림이 발생되었고, 이에 따라서 양질의 자기기록 및 재생작용을 할 수 없다는 문제점이 있었다.Due to this, the lower drum 5 was severely shaken about the rotational shaft 2, and thus there was a problem in that it was not possible to perform high-quality magnetic recording and reproduction.

바람직하게는 하부드럼(5)의 중공부(5a) 직경과 하부베어링(4')의 직경이 동일하면 상기와 같은 문제점을 해결할 수 있는 것이지만, 하부드럼(5)의 회전축(2)에 대한 흔들림은 수미크론(㎛) 정도로 규제되어야만 했기 때문에 그 가공공정상 매우 어려운 일이며 특히 규격화된 베어링을 사용하기 때문에 하부드럼(5)의 중공부(5a)를 허용공차 이상 가공하게 될 경우 하부드럼(5) 자체를 폐기할 수 밖에 없다는 문제점이 있었다.Preferably, if the diameter of the hollow portion 5a of the lower drum 5 and the diameter of the lower bearing 4 'are the same, the above problems can be solved, but the shaking about the rotation axis 2 of the lower drum 5 Is very difficult in the processing process because it had to be regulated to a few microns (µm), and in particular, when the hollow part 5a of the lower drum 5 is processed beyond the tolerance, the lower drum 5 ) There was a problem that you have to discard itself.

본 고안은 상기와 같은 테이프레코더의 자기기록/재생용 헤드드럼의 문제점을 감안하여 안출된 것으로서, 하부드럼의 중공부 가공공차를 크게할 수 있어 그 가공공수 및 가공시간을 단축할 수 있음을 물론이고 회전축과 하부드럼간의 흔들림을 정확하게 규제할 수 있는 테이프레코더의 자기기록/재생용 헤드드럼을 제공함에 그 목적이 있다.The present invention was devised in view of the above problems of the magnetic recording / reproducing head drum of the tape recorder, and it is possible to shorten the processing time and processing time of the hollow part of the lower drum. It is an object of the present invention to provide a head drum for magnetic recording / playback of a tape recorder capable of precisely regulating the swing between the rotating shaft and the lower drum.

상기 목적을 달성하기 위하여 본 고안에 따른 테이프레코더의 자기기록/재생용 헤드드럼은, 하부드럼과, 하부드럼의 상, 하부베어링에 의해 그 회전축이 지지되는 상부드럼과, 상기 하부드럼의 저면에 설치되는 드럼모터를 구비하여된 테이프레코더의 자기기록/재생용 헤드드럼에 있어서, 상기 하부베어링과 대면하는 하부드럼 하단부에, 세트스코류가 체결되는 적어도 3개 이상의 나사구멍과, 상기 나사구멍에 체결되는 세트스크류의 풀림을 방지하기 위한 접착제 투입구멍이 형성되어 된 것을 그 특징으로 한다.In order to achieve the above object, the magnetic drum for magnetic recording / reproducing of the tape recorder according to the present invention includes a lower drum, an upper drum on which a rotating shaft is supported by upper and lower bearings of the lower drum, and a bottom surface of the lower drum. A head drum for magnetic recording / playback of a tape recorder provided with a drum motor, comprising: at least three screw holes for fastening a set screw to a lower end of a lower drum facing the lower bearing, and to the screw hole. It is characterized in that the adhesive injection hole is formed to prevent loosening of the set screw to be fastened.

이하 본 고안에 따른 테이프레코더의 자기기록/재생용 헤드드럼의 바람직한 일실시예를 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, a preferred embodiment of a magnetic recording / playback head drum of the tape recorder according to the present invention will be described in detail.

제 2 도 내지 제 3 도에는 본 고안에 따른 테이프레코더의 자기기록/재생용 헤드드럼이 도시되어 있는바, 회전축(20)에 의해 지지되며 그 저면에 헤드(30a)가 설치된 상부드럼(30)과, 상기 상부드럼(30)의 회전축(20)에 결합되는 상, 하부베어링(40) (40')이 설치되도록 중공부(50a)를 갖는 하부드럼(50)과, 상기 하부베어링(40')과 대면하는 상기 하부드럼(50)의 하단부에 설치되어 상기 하부베어링(40')과 하부드럼(50) 상호간의 위치고정하기 위한 고정수단과, 상기 하부드럼(50)의 저면에 설치되어 회전축(20)을 구동하는 드럼모터(M)를 구비하여 구성된다.2 to 3 shows a head drum for magnetic recording / playback of a tape recorder according to the present invention, which is supported by a rotating shaft 20 and has an upper drum 30 having a head 30a installed on its bottom. And a lower drum 50 having a hollow portion 50a so that the upper and lower bearings 40 and 40 'coupled to the rotation shaft 20 of the upper drum 30 are installed, and the lower bearing 40'. ) Is installed at the lower end of the lower drum 50 to face the fixing means for fixing the position between the lower bearing 40 'and the lower drum 50, and is installed on the bottom surface of the lower drum 50 and the rotating shaft It comprises a drum motor (M) for driving the (20).

상기 하부베어링(40')과 하부드럼(50) 상호간의 고정수단은, 상기 하부베어링 (40')과 대면하는 하부드럼(50)의 하단부에 형성되는 적어도 3개 이상의 세트스크류 (60) 체결용 나사구멍(60a)과, 상기 나사구멍(60a)에 체결된 세트스크류(60)의 풀림을 방지하기 위한 접착제 투입구멍(70)을 구비하여 된 것이다.Fixing means between the lower bearing 40 'and the lower drum 50 is for fastening at least three or more set screws 60 formed at the lower end of the lower drum 50 facing the lower bearing 40'. The screw hole 60a and the adhesive inserting hole 70 for preventing the set screw 60 fastened to the screw hole 60a are provided.

상기와 같이 구성된 본 고안에 따른 테이프레코드의 자기기록/재생용 헤드드럼 (10)에 의하면, 베어링(40')을 하부드럼(50)에 고정수단에 의해 고정하는 방법은 제 3 도에 도시된 바와 같이, 먼저 센터게이지(80)을 사용하여 회전축(20)을 정확하게 지지시킨다. 그리고 하부드럼(50)이 회전축(20)에 대한 흔들림을 측정하기 위하여 상기 하부드럼 (50) 저면에는 다이얼게이지(90)를 설치한다.According to the head drum 10 for magnetic recording / playback of a tape record according to the present invention configured as described above, a method of fixing the bearing 40 'to the lower drum 50 by means of fixing means is shown in FIG. As shown, first, the center gauge 80 is used to accurately support the rotation shaft 20. And the lower drum 50 is installed on the bottom surface of the lower drum 50 in order to measure the shaking with respect to the rotating shaft 20, the dial gauge 90 is installed.

이와 같은 상태에서 회전축(20)을 회전시키면서 다이알게이지(90)로써 하부드럼 (50)의 흔들림을 측정한다. 이때 흔들림이 규제치 이상일때는 상기 하부드럼(50)의 하단부에 설치된 나사구멍(60a)을 통하여 세트스크류(60)를 체결시키면서 하부베어링(40')의 위치를 조절한다. 상기와 같이 조절하여 그 흔들림이 규제치를 벗어나지 않게 되면 접착제 투입구멍(70)을 통하여 접착제 (예를 들면 본드 등)를 투입하여 세트스크류(60)가 하부베어링(40)을 하부드럼(50)에 정확히 고정시킨 상태에서 풀리지 않게 한다. 이때 접착제는 하부베어링(40')과 하부드럼(50) 사이의 공간에 충진되어 고착됨으로써 좀더 확실히 하부베어링(40')과 하부드럼(50)을 고정시킬 수 있는 것이다.The rotation of the lower drum 50 is measured by the dial gauge 90 while rotating the rotary shaft 20 in such a state. At this time, when the shaking is greater than or equal to the regulation value, the position of the lower bearing 40 'is adjusted while fastening the set screw 60 through the screw hole 60a provided at the lower end of the lower drum 50. When the shaking does not deviate from the regulation value as described above, the adhesive (for example, bond, etc.) is introduced through the adhesive inserting hole 70 so that the set screw 60 moves the lower bearing 40 to the lower drum 50. Do not loosen it in a fixed state. In this case, the adhesive may be more securely fixed to the lower bearing 40 'and the lower drum 50 by being filled and fixed in the space between the lower bearing 40' and the lower drum 50.

상기와 같이 하부베어링(40')을 하부드럼(50)에 정확히 위치고정시킨 상태에서 상기 하부드럼(50) 저면에 위치한 드럼모터(M)를 구동시켜 회전축(20)을 회전시키면 상기 회전축(20)에 대하여 상기 하부드럼(50)의 흔들림은 거의 발생되지 않는 것이다. 따라서 양질의 자기기록/재생을 얻을 수 있는 것이다.In the state where the lower bearing 40 'is accurately fixed to the lower drum 50 as described above, when the rotating shaft 20 is rotated by driving the drum motor M located on the lower surface of the lower drum 50, the rotating shaft 20 is rotated. The vibration of the lower drum 50 is hardly generated. Therefore, high quality magnetic recording / reproduction can be obtained.

상술한 바와 같이 본 고안에 의하면, 하부베어링에 대하여 하부드럼의 흔들림의 거의 발생되지 않는 것이며, 상기 하부베어링을 개재하기 위해 하부드럼에 중공부를 가공함에 있어서도 그 가공공차를 크게할 수 있는 것이어서 가공시간단축을 도모할 수 있는 것이다.As described above, according to the present invention, the shaking of the lower drum is hardly generated with respect to the lower bearing, and the processing tolerance can be increased even when the hollow part is processed in the lower drum to interpose the lower bearing. It can shorten.

Claims (1)

하부드럼과, 하부드럼의 상, 하부베어링에 의해 그 회전축이 지지되는 상부드럼과, 상기 하부드럼의 저면에 설치되는 드럼모터를 구비하여된 테이프레코더의 자기기록/재생용 헤드드럼에 있어서, 상기 하부베어링(40')과 대면하는 하부드럼(50) 하단부에, 세트스크류(60)가 체결되는 적어도 3개 이상의 나사구멍(60a)과, 상기 나사구멍(60a)에 체결되는 세트스크류(60)의 풀림을 방지하기 위한 접착제 투입구멍(70)이 형성되어 된 것을 특징으로 하는 테이프레코더의 자기기록/재생용 헤드드럼.In the head drum for magnetic recording / playback of a tape recorder comprising a lower drum, an upper drum on which a rotating shaft is supported by upper and lower bearings of the lower drum, and a drum motor provided on the bottom of the lower drum. At least three or more screw holes 60a to which the set screws 60 are fastened to the lower end of the lower drum 50 facing the lower bearing 40 'and set screws 60 to be fastened to the screw holes 60a. Self-recording / playback head drum for a tape recorder, characterized in that an adhesive inserting hole (70) is formed to prevent loosening of the tape.
KR2019910011084U 1991-07-16 1991-07-16 Head drum for tape recorder KR940002828Y1 (en)

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Application Number Priority Date Filing Date Title
KR2019910011084U KR940002828Y1 (en) 1991-07-16 1991-07-16 Head drum for tape recorder

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Application Number Priority Date Filing Date Title
KR2019910011084U KR940002828Y1 (en) 1991-07-16 1991-07-16 Head drum for tape recorder

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KR930003392U KR930003392U (en) 1993-02-26
KR940002828Y1 true KR940002828Y1 (en) 1994-04-23

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