KR910009022B1 - Bearing device for recorder drum - Google Patents

Bearing device for recorder drum Download PDF

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Publication number
KR910009022B1
KR910009022B1 KR1019880017594A KR880017594A KR910009022B1 KR 910009022 B1 KR910009022 B1 KR 910009022B1 KR 1019880017594 A KR1019880017594 A KR 1019880017594A KR 880017594 A KR880017594 A KR 880017594A KR 910009022 B1 KR910009022 B1 KR 910009022B1
Authority
KR
South Korea
Prior art keywords
drum
bearing
spring
boss
bearings
Prior art date
Application number
KR1019880017594A
Other languages
Korean (ko)
Other versions
KR900010654A (en
Inventor
이현우
Original Assignee
삼성전자 주식회사
안시환
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 삼성전자 주식회사, 안시환 filed Critical 삼성전자 주식회사
Priority to KR1019880017594A priority Critical patent/KR910009022B1/en
Priority to JP1218737A priority patent/JPH06101103B2/en
Priority to DE3931232A priority patent/DE3931232C2/en
Publication of KR900010654A publication Critical patent/KR900010654A/en
Application granted granted Critical
Publication of KR910009022B1 publication Critical patent/KR910009022B1/en

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    • 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
    • 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

Abstract

The device used for video tape recorder or digital audio tape recorder, performs the stabilized and smoth rotation of the head drum and prevents the chattering or vibration of the head drum. The device comprises a prestressed boss (4), upper and lower bushing rings (8)(9), spring (10) at the center of drum (1) of drum shaft (1); each bearings (6)(7) forcedly inserted to the lower boss (4) or the upper ring (9); bushing (12) mounted on the bearing (7).

Description

레코더 드럼의 베어링장치Bearing device of recorder drum

제1도 및 제2도는 종래의 베어링 설치상태 단면도.1 and 2 are cross-sectional views of a conventional bearing installation state.

제3도는 본 발명의 조립상태 단면도.3 is a cross-sectional view of the assembled state of the present invention.

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

1 : 드럼 4 : 예압보스1: Drum 4: Preload Boss

6,7 : 베어링 8,9 : 부시링체6,7 Bearing 8,9 Bushing Body

10 : 스프링 11 : 드럼축10: spring 11: drum shaft

12 : 부시12: bush

본 발명은 비데오 테이프 레코더(VTR) 및 디지틀 오디오 테이프 레코더(DAT)등에 있어서, 이들의 헤드드럼의 회전을 안정적이고 원활하게 하며, 헤드드럼의 흔들림이나 진동을 방지할 수 있도록 한 레코더 드럼의 베어링장치에 관한 것이다.The present invention provides a video tape recorder (VTR), a digital audio tape recorder (DAT), and the like, wherein the head drum is rotated stably and smoothly, and the device for bearing the drum of the recorder drum can be prevented from shaking or vibration. It is about.

종래의 레코더 드럼에는 제1도 및 제2도에서와 같이 드럼(1)의 상, 하에 내, 외륜(102)(103)으로된 베어링(101)을 압입설치하거나, 축(201)과 직접 접하는 상,하의 베어링(202)(203)사이에 스프링(204)을 내재하고 있었으며 상기 전자의 것은 베어링의 한쪽에 예압을 주어 베어링의 간격을 줄이고 있지만 이는 회전시 마찰이 심하여 베어링의 마모율이 높게 되었고 따라서 축이나 베어링의 흔들림과 진동이 발생되어 정밀회전하는 드럼의 회전을불량하게 하는 문제점이 있었으며, 또한 후자의 것은 상,하 베어링 사이의 스프링으로서 베어링간의 압력을 질정하게 하도록 되어 있었지만 하부의 베어링에 스프링의 탄발력만큼의 하중이 부가되고 따라서 하부 베어링에 집중하중이 발생되며 이곳의 집중하중으로 베어링의 피로도가 높게되어 베어링의 수명이 짧게되고 드럼의 흔들림등이 원천적으로 해소되지 못하게 되는 점등의 문제점이 있었다.In the conventional recorder drum, as shown in FIG. 1 and FIG. 2, the bearing 101 made of the outer ring 102, 103 is press-fitted or directly contacted with the shaft 201 as shown in FIGS. The spring 204 is embedded between the upper and lower bearings 202 and 203. The former has a preload on one side of the bearing to reduce the gap between the bearings. Shake and vibration of the shaft and bearings cause the drum to rotate in a poorly rotating position. The latter is a spring between the upper and lower bearings, which is used to squeeze the pressure between the bearings. The load is added as much as the elastic force of, so the concentrated load is generated in the lower bearing, and the bearing fatigue is high due to the concentrated load, which shortens the life of the bearing. There was a problem of the lighting that the shake of the drum is not fundamentally eliminated.

본 발명은 상기의 제반 문제점을 감안하여 안출한 것으로 이를 이하에서 상세히 설명하면 다음과 같다.The present invention has been made in view of the above-mentioned problems and will be described in detail below.

본 발명은 통상의 드럼 상, 하에 베어링을 설치하고 이들 사이에 예입보스와 상,하의 부시링체 및 스프링을 내재시키며 베어링 상부에 부시를 설치시켜서 구성된다.The present invention is constructed by installing a bearing on a top of a drum and a bushing body and a spring, and a bushing body and a spring of the upper and lower portions therebetween, and installing a bush on the bearing.

이와같은 본 발명을 제3도에 의거하여 상세히 설명하면 다음과 같다.The present invention will be described in detail with reference to FIG. 3 as follows.

즉, 로터 및 스테이터 트랜스(2)(3)를 가진 드럼(1)의 중앙하방에 예압보스(4)를 스크류(5)로 체결고정하고 이의 하방에 하부 베어링(6)을 압입시키며, 상기 예압보스(4)상부에 부시링체(8)와 스프링(10) 및 부시링체(9)를 설치하며 이의 상부에 상부 베어링(7)을 압입설치한다. 상기 상,하 베어링(6)(7)에는 이들을 관통하는 드럼축(11)을 설치하고 드럼(1)의 상부에 부시(12)를 설치토록 구성된 것이다.In other words, the preload boss 4 is fastened to the center of the drum 1 having the rotor and the stator transformer 2 and the screw 3 with the screw 5, and the lower bearing 6 is press-fitted under the preload boss 4. The bushing body 8, the spring 10, and the bushing body 9 are installed on the boss 4, and the upper bearing 7 is press-fitted on the upper part thereof. The upper and lower bearings 6 and 7 are provided such that a drum shaft 11 penetrating them is installed and a bush 12 is installed on the drum 1.

이와같은 본 발명은 예압보스(4) 상부의 부시링체(8)(9)와 스프링(10)으로서 상, 하 베어링(6)(7)에 항상 일정한 압력을 유지시킬 수 있고 또 예압을 베어링이 아닌 예압보스(4)에 인가하므로서 베어링의 마모율을낮출 수 있으며 또 드럼(1)의 외측이나 드럼축(11)에 의하여 전달되는 충격이나 진동을 부시링체(8)(9)에 1차 완충시키고 이를 다시 스프링(10)으로서 완충시키므로 상기의 충격이나 진동이 직접 베어링(6)(7)에 가해지는 일이 없으며 드럼(1) 상부의 부시(12)는 드럼축(11)의 압입시 이의 직각도를 유지시키기 위하여 설치된 것이다.The present invention can maintain a constant pressure on the upper and lower bearings 6 and 7 as the bushing bodies 8 and 9 and the spring 10 on the upper part of the preload boss 4, and the preload bearing It is possible to lower the wear rate of the bearing by applying it to the preload boss 4, and to firstly cushion the bushing body 8 and 9 with the shock or vibration transmitted by the outside of the drum 1 or the drum shaft 11. Since it is buffered again as a spring 10, the above shock or vibration is not directly applied to the bearings 6 and 7, and the bush 12 of the upper part of the drum 1 is perpendicular to its right angle when the drum shaft 11 is press-fitted. It is installed to maintain the degree.

이와같은 본 발명은 드럼의 축 방향 위치결정을 비교적 자유롭게 할 수 있고 또 드럼축의 삽입직경도 스프링과 부시링체의 삽입경 정도로 충분하므로서 이들의 간격을 적게할 수 있으며 이 정도로서도 드럼축의 직각도를 충분히 얻을 수 있고 베어링에 집중하중이 가해지지 않으므로 베어링의 피로도를 감소시킬 수 있으며, 이의 수명을 종래보다 길게할 수 있고 동작을 원활하게 할 수 있는 점등의 특징을 지닌 것이다.In the present invention, the axial positioning of the drum can be made relatively free, and the insertion diameter of the drum shaft is also sufficient as the insertion diameter of the spring and the bushing body, so that the gap thereof can be reduced. It is possible to reduce the fatigue of the bearing because it can be obtained and the concentrated load is not applied to the bearing, and its life can be longer than before and it has the characteristic of lighting that can make the operation smooth.

Claims (1)

드럼축(1)이 설치되는 드럼(1)의 중앙에 예압보스(4)와 상, 하 부시링체(8)(9) 및 스프링(10)을 설치하고 예압보스(4)의 하부와 부시링체(9)의 상부에 각각의 베어링(6)(7)을 압입시키며 베어링(7)의 상부에 부시(12)를 설치토록 하여서됨을 특징으로 하는 레코더 드럼의 베어링장치.The preload boss 4 and the upper and lower bushing bodies 8 and 9 and the spring 10 are installed in the center of the drum 1 where the drum shaft 1 is installed, and the lower part and the bushing body of the preload boss 4 are installed. The bearing device of the recorder drum, characterized in that the bearing (6) (7) is pressed in the upper part of the (9) and the bush (12) is installed in the upper part of the bearing (7).
KR1019880017594A 1988-12-27 1988-12-27 Bearing device for recorder drum KR910009022B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019880017594A KR910009022B1 (en) 1988-12-27 1988-12-27 Bearing device for recorder drum
JP1218737A JPH06101103B2 (en) 1988-12-27 1989-08-28 Recorder drum device
DE3931232A DE3931232C2 (en) 1988-12-27 1989-09-19 Bearing arrangement for the head drum of a magnetic tape device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019880017594A KR910009022B1 (en) 1988-12-27 1988-12-27 Bearing device for recorder drum

Publications (2)

Publication Number Publication Date
KR900010654A KR900010654A (en) 1990-07-09
KR910009022B1 true KR910009022B1 (en) 1991-10-28

Family

ID=19280738

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880017594A KR910009022B1 (en) 1988-12-27 1988-12-27 Bearing device for recorder drum

Country Status (3)

Country Link
JP (1) JPH06101103B2 (en)
KR (1) KR910009022B1 (en)
DE (1) DE3931232C2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0550826A1 (en) * 1991-12-20 1993-07-14 Datatape Incorporated A scanner mount for a rotary head scanner
CN1497538A (en) * 2002-10-07 2004-05-19 三星电子株式会社 Head drum assembly of tape recorder

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57197755U (en) * 1981-06-10 1982-12-15
GB2179407B (en) * 1985-07-22 1990-01-04 Alps Electric Co Ltd Rotary head mechanism

Also Published As

Publication number Publication date
DE3931232A1 (en) 1990-06-28
JPH06101103B2 (en) 1994-12-12
KR900010654A (en) 1990-07-09
DE3931232C2 (en) 1996-04-18
JPH02179960A (en) 1990-07-12

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