KR900009755Y1 - Fixing apparatus of photo transistor for fdd - Google Patents

Fixing apparatus of photo transistor for fdd Download PDF

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Publication number
KR900009755Y1
KR900009755Y1 KR2019870013556U KR870013556U KR900009755Y1 KR 900009755 Y1 KR900009755 Y1 KR 900009755Y1 KR 2019870013556 U KR2019870013556 U KR 2019870013556U KR 870013556 U KR870013556 U KR 870013556U KR 900009755 Y1 KR900009755 Y1 KR 900009755Y1
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South Korea
Prior art keywords
phototransistor
fdd
support
insertion groove
fixing apparatus
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KR2019870013556U
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Korean (ko)
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KR890005604U (en
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가의섭
정중기
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금성통신 주식회사
임종염 · 하인츠 디터 케루트
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Priority to KR2019870013556U priority Critical patent/KR900009755Y1/en
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    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127Structure or manufacture of heads, e.g. inductive
    • G11B5/1272Assembling or shaping of elements
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/012Recording on, or reproducing or erasing from, magnetic disks

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Light Receiving Elements (AREA)

Abstract

내용 없음.No content.

Description

에프디디의 포토트랜지스터 고정장치FDDI's Phototransistor Fixture

제1도는 본 고안이 설치된 에프디디의 평면도.Figure 1 is a plan view of the FDDI installed the present invention.

제2도는 본 고안 장치의 구성을 보인 분해 사시도.Figure 2 is an exploded perspective view showing the configuration of the device of the present invention.

제3도는 본 고안 장치의 요부 구성을 보인 확대단면도.Figure 3 is an enlarged cross-sectional view showing the main configuration of the device.

제4도는 본 고안 장치의 부품을 지지체의 부분 평면도.4 is a partial plan view of the support of the component of the present invention device.

제5도는 본 고안 장치의 에프디디의 메인프레임에 디스크압착콘이 선단부.5 is a disk pressing cone tip of the FD main frame of the device of the present invention.

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

1 : 메인프레임 3 : 레시버1: mainframe 3: receiver

3a : 요입부 4 : 지지체3a: concave portion 4: support

4b : 삽입홈 4c : 주벽4b: insertion groove 4c: main wall

4d : 절결부 4e : 압착돌기4d: notch 4e: crimp protrusion

6 : 포토트랜지터6: phototransistor

본 고안은 에프디디(FDD : floppy disk drive)의 포토트랜지스터 고정장치에 관한 것으로, 특히 포토트랜지스터 지지체의 형상을 개선하여 포토트랜지스터의 고정작업을 간단용이하게 하고 불량율을 감소화한 포토트랜지스터 고정장치 관한 것이다.The present invention relates to a phototransistor fixing device for a floppy disk drive (FDD), and more particularly, to a phototransistor fixing device which simplifies the fixing operation of the phototransistor by reducing the shape of the phototransistor supporter and reduces the defective rate. will be.

에프디디에서 사용되는 디스크는 데이터가 원주상에 기록되며 기록되었거나 기록되어질 데이터는 그 시작점이 있어야 한다. 이러한 시작점을 형성하는 방법은 소프트웨어로서 하는 방법과 하드웨어로 하는 방법이 있는데 전자의 방법은 소프트웨어가 차지하는 영역이 많이 소요되므로 실제 사용자가 쓸 수 있는 메모리 영역이 적어지는 단점이 있어서 주로 하드웨어로 시작점을 정하게 된다. 즉, 디스케트의 원주상에 홀을 형성하고 발광소자와 수광소자를 적절히 배설하여 발생된 신호를 사용하므로서 그 목적을 달성하게 되며 이는 일명 인덱스(INDEX)검출이라고 부른다.For discs used in FDD, data is recorded on the circumference and the data to be recorded or to be recorded must have a starting point. The method of forming such a starting point is a method of using software and a method of hardware. The former method takes a lot of area occupied by the software, so there is a disadvantage in that the memory area that can be used by the actual user is small. do. That is, the object is achieved by forming a hole on the circumference of the desket and using a signal generated by appropriately disposing a light emitting element and a light receiving element, which is called index detection.

또한 에프디디에서는 한번 기록된 데이터가 지워지지 않도록 하는 기능이 필요한바, 이러한 기능은 디스케이트의 외피 일측에 ㄷ자형 노치부를 형성하고 발광소자와 수광소자의 작용에 의하여 노치의 개폐여부를 판별하게 함으로써 달성되며 일명 WRT, PRT라고 부른다.In addition, FDD requires a function to prevent the data recorded once being erased. This function is achieved by forming a c-shaped notch on one side of the outer surface of the display and determining whether the notch is opened or closed by the action of the light emitting device and the light receiving device. It is called WRT, PRT.

종래에는 이러한 발광소자와 수광소자중 통상 발광부로 포토트랜지스터를 설치하면서 수지물인 지지체에 포토트랜지스터가 삽입될 수 있는 삽입홈을 형성한 후, 그 삽입홈에 포토트랜지스터를 삽입하고 접착제를 사용하여 고정하였다.Conventionally, while installing a phototransistor as a light emitting unit of such a light emitting device and a light receiving device, an insertion groove into which a phototransistor can be inserted is formed in a resin support, and then a phototransistor is inserted into the insertion groove and fixed using an adhesive. .

그러나, 종래의 고정장치는 접착제가 과다할 경우 포토 트랜지스터의 발광되는 부분이 접착제로 막히게 되어 불량율이 높았으며, 필요에 따라 분리되는 경우에 일단 접착제가 도포된 포토트랜지스터는 재사용이 불가능하게 되었다.However, the conventional fixing device has a high defect rate because the light emitting part of the photo transistor is blocked by the adhesive when the adhesive is excessive, and the phototransistor to which the adhesive is once applied is not reusable when separated.

그리고, 접착제 비용도 무시할 수 없을 뿐아니라 고정작업이 번거롭게 되어 제품의 생산성이 저하되는 결함도 있었다.In addition, the adhesive cost can not be ignored, and the fixing work is cumbersome, and there is a defect that the productivity of the product is lowered.

본 고안은 이와 같은 종래의 결함을 해소하기 위하여 안출한 것으로 이러한 본 고안의 적절한 일실시예를 첨부한 도면에 의하여 상세히 설명하면 다음과 같다.The present invention has been devised to solve such a conventional deficiency and will be described in detail with reference to the accompanying drawings.

제1도 내지 제5도에 도시한 바와 같이, 에프디디의 메인프레임(1)에 디스크압착콘(2)이 선단부에 유착된 리시버(3)가 설치되고 그 리시버의 요입부(3a) 일측에 형성된 나사공(3b)에는 수지물 지지체(4)가 조절장공(4a)에 끼워지는 나사(5)로 고정되고 그 지지체(4)의 삽입홈(4b)에는 포토트랜지스터(6)가 고정되는 것에 있어서, 상기 지지체(4)의 주벽(4c) 일측부를 길이방향으로 절결하여 절결부(4d)를 형성하고, 그 주벽(4c)의 내주면에는 수개의 압착돌기(4e)를 일정간격을 두고 길이방향으로 일체로 형성하여,이와같이 된 지지체(4)의 삽입홈(4b)에 포토트랜지스터(6)를 압입 고정한 것이다.As shown in Figs. 1 to 5, the receiver 3, in which the disk pressing cone 2 is adhered to the distal end, is installed in the main frame 1 of the FDD and on one side of the recess 3a of the receiver. The resin support 4 is fixed to the formed screw hole 3b by a screw 5 fitted into the adjustment hole 4a, and the phototransistor 6 is fixed to the insertion groove 4b of the support 4. In this case, one side of the circumferential wall 4c of the support body 4 is cut in the longitudinal direction to form a cutout portion 4d, and several crimping projections 4e are provided on the inner circumferential surface of the circumferential wall 4c at regular intervals in the longitudinal direction The phototransistor 6 is press-fitted to the insertion groove 4b of the support body 4 thus formed as a single body.

여기서, 상기 지지체(4)의 주벽(4c)에 형성되는 압착돌기(4e)는 그들의 내측부가 이루는 가상원의 직경(d)이 포토트랜지스터(6)의 외경보다 작게 되도록 형성하며, 상기 주벽(4c)에 형성되는 절결부(4d)는 주벽(4c)의 상단부에서 저면(4f)까지 절결형성하는 것이나, 주벽(4c)의 상단부에서 하단부까지 전체적으로 절결형성하여도 무방하다.Here, the crimping projections 4e formed on the main wall 4c of the support 4 are formed such that the diameter d of the virtual circle formed at their inner side is smaller than the outer diameter of the phototransistor 6, and the main wall 4c The cutout portion 4d formed at) may be cut out from the upper end of the circumferential wall 4c to the bottom face 4f, or may be cut out from the upper end to the lower end of the circumferential wall 4c as a whole.

도면에서 미설명부호7은 리시버(3)를 작동시켜 압착콘(2)이 승강되게 하는 조작레버이고, 8은 헤드조립체이며, 9는 스핀들모터의 축(10)에 고정되어 헤드조립체(8)에 구동력을 부여하는 풀리이다.In the drawing, reference numeral 7 denotes an operation lever for operating the receiver 3 to raise and lower the pressing cone 2, 8 is a head assembly, and 9 is fixed to the shaft 10 of the spindle motor, so that the head assembly 8 It is a pulley to give a driving force to.

이와 같이 된 본 고안은 지지체(4)의 주벽(4c)에 절결부(4d)가 형성되고 내주면에 수개의 압착돌기(4e)가 형성되어 있으므로, 그 지지체(4)의 삽입홈(4b)에 포토트랜지스터(6)를 압입하면 지지체(4)의 주벽(4c)이 탄성에 의하여 확개되면서 삽입되며, 완전히 삽입되면, 주벽(4c)이 탄성에 의하여 오무라져 압착돌기(4e)가 포토트랜지스터(6)의 외주면을 압착하게 되므로 무단히 빠지는 일이 없이 안정되게 고정된다.According to the present invention, the cutout portion 4d is formed on the circumferential wall 4c of the support 4, and the several pressing projections 4e are formed on the inner circumferential surface thereof, so that the insertion groove 4b of the support 4 is formed. When the phototransistor 6 is press-fitted, the circumferential wall 4c of the support body 4 is inserted while being expanded by elasticity. When fully inserted, the circumferential wall 4c is collapsed by elasticity, and the crimping projection 4e is inserted into the phototransistor 6. Since the outer circumferential surface of) is squeezed, it is fixed stably without falling out.

상술한 바와 같이 본 고안 포토트랜지스터 고정장치는 지지체의 삽입홈에 포토트랜지스터를 간단히 끼워맞춤으로 고정하도록 되어 있으므로, 종래에 사용되었던 접착제가 불필요하게 되어 부자재 비용이 절감되고, 접착제로 인한 불량율이 배제되며, 포토트랜지스터의 조립공정이 한단계 줄어들어 조립성이 월등히 향상될 뿐아니라 해체 보수가 용이하며 재사용이 가능한 이점등이 있다.As described above, the phototransistor fixing device of the present invention is designed to simply fix the phototransistor to the insertion groove of the support by simply fitting it, so that the adhesive used in the past is unnecessary, and the cost of the subsidiary materials is reduced, and the defective rate due to the adhesive is excluded. As a result, the assembly process of the phototransistor is reduced by one step, which greatly improves the assemblability, as well as easy disassembly and repair and reuse.

Claims (1)

메인프레임(1)에 리시버(3)가 설치되고 그 리시버(3)의 요입부(3a)에 수지물 지지체(4)가 고정되며 그 지지체(4)의 삽입홈(4b)에 포토트랜지스터(6)가 고정되는 것에 있어서, 상기 지지체(4)의 주벽(4c)에 절결부(4d)를 형성하고 그 주벽(4c)의 내주면에는 수개의 압착돌기(4e)를 형성하여, 지지체(4)의 삽입홈(4b)에 포토트랜지스터(6)를 압입 고정하도록 구성한 것을 특징으로 하는 에프디디의 포토트랜지스터 고정장치.The receiver 3 is installed in the main frame 1, the resin support 4 is fixed to the recess 3a of the receiver 3, and the phototransistor 6 is inserted into the insertion groove 4b of the support 4. ) Is fixed, the notch 4d is formed in the main wall 4c of the said support body 4, and several crimping projections 4e are formed in the inner peripheral surface of the main wall 4c, and the FDDI phototransistor fixing device, characterized in that configured to press-fit the phototransistor (6) to the insertion groove (4b).
KR2019870013556U 1987-08-13 1987-08-13 Fixing apparatus of photo transistor for fdd KR900009755Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870013556U KR900009755Y1 (en) 1987-08-13 1987-08-13 Fixing apparatus of photo transistor for fdd

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Application Number Priority Date Filing Date Title
KR2019870013556U KR900009755Y1 (en) 1987-08-13 1987-08-13 Fixing apparatus of photo transistor for fdd

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KR890005604U KR890005604U (en) 1989-04-20
KR900009755Y1 true KR900009755Y1 (en) 1990-10-19

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KR2019870013556U KR900009755Y1 (en) 1987-08-13 1987-08-13 Fixing apparatus of photo transistor for fdd

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