KR960025339A - Headdrum assembly - Google Patents

Headdrum assembly Download PDF

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Publication number
KR960025339A
KR960025339A KR1019940037244A KR19940037244A KR960025339A KR 960025339 A KR960025339 A KR 960025339A KR 1019940037244 A KR1019940037244 A KR 1019940037244A KR 19940037244 A KR19940037244 A KR 19940037244A KR 960025339 A KR960025339 A KR 960025339A
Authority
KR
South Korea
Prior art keywords
drum
bearing
piezo
support boss
stator
Prior art date
Application number
KR1019940037244A
Other languages
Korean (ko)
Other versions
KR100213271B1 (en
Inventor
김금모
Original Assignee
배순훈
대우전자 주식회사
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 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019940037244A priority Critical patent/KR100213271B1/en
Priority to US08/578,364 priority patent/US5719723A/en
Priority to CN95121167A priority patent/CN1074568C/en
Priority to JP7351968A priority patent/JP2859842B2/en
Publication of KR960025339A publication Critical patent/KR960025339A/en
Application granted granted Critical
Publication of KR100213271B1 publication Critical patent/KR100213271B1/en

Links

Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0603—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion
    • F16C32/0614—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic bearings
    • 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
    • G11B15/66—Threading; Loading; Automatic self-loading
    • G11B15/665—Threading; Loading; Automatic self-loading by extracting loop of record carrier from container
    • G11B15/6653—Threading; Loading; Automatic self-loading by extracting loop of record carrier from container to pull the record carrier against drum

Abstract

본 발명은 헤드드럼 조립체를 개시한다.The present invention discloses a headdrum assembly.

본 발명은, 상단부에 드럼모터의 고정자가 고정된 고정축과; 고정축에 압입되며, 지지보스가 돌출 설치된 하부드럼과; 회전축에 회전 가능하게 설치되고, 상부에 드럼모터의 회전자가 고정 설치되며, 하부면에는 하부드럼의 지지보스와 대응되는 지지보스가 돌출 설치된 상부드럼과; 고정자 하면과, 상부드럼의 상면 사이에 개재되는 제1피에조 베어링과; 상부드럼의 내주면에 마련되는 제2피에조 베어링과; 지지보스중 어느 일측면에 선택적으로 마련되는 제3피에조 베어링;을 포함하는 것으로서, 기존 헤드드럼에 사용하는 구름 베어링이나 기름등을 사용하지 않음으로써, 진동 및 오염을 방지하여 화질의 열화를 방지할 수 있으며, 특히 베어링면의 마찰이 거의 발생되지 않아 모터의 과부하를 방지할 수 있는등 많은 효과가 있다. 따라서 이를 채용한 테이프 레코더의 신뢰성을 향상시킬 수 있는 잇점이 있다.The present invention, the fixed shaft and the stator of the drum motor is fixed to the upper end; A lower drum press-fitted to the fixed shaft and provided with a support boss; An upper drum rotatably installed on a rotating shaft, and a rotor of the drum motor fixedly installed on an upper side thereof, and an upper drum on which a support boss corresponding to the support boss of the lower drum is protruded; A first piezo bearing interposed between the lower surface of the stator and the upper surface of the upper drum; A second piezo bearing provided on an inner circumferential surface of the upper drum; The third piezo bearing selectively provided on any one side of the support boss; by not using the rolling bearing or oil used in the existing head drum, to prevent vibration and contamination to prevent deterioration of image quality In particular, since the friction of the bearing surface is hardly generated, it is possible to prevent the overload of the motor. Therefore, there is an advantage that can improve the reliability of the tape recorder employing this.

Description

헤드드럼 조립체Headdrum assembly

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제3도는 본 발명에 따른 헤드드럼 조립체의 단면도, 제4도는 피에조 베어링에 의해 생성되는 공기막을 통한 하중의 지지능력을 보인 분포도.3 is a cross-sectional view of a head drum assembly according to the present invention, and FIG. 4 is a distribution diagram showing a load carrying capacity through an air film produced by a piezo bearing.

Claims (1)

그 상단부에 드럼모터의 고정자가 고정 설치된 고정축과; 상기 고정축의 하단부에 압입되며, 그 중심내면에는 지지보스가 돌출 설치된 하부드럼과; 상기 회전축의 상부에 회전 가능하게 설치되고, 그 상부에 드럼모터의 회전자가 고정 설치되며, 그 하부 중심면에는 상기 하부드럼의 지지보스와 대응되는 지지보스가 돌출설치된 상부드럼과; 상기 드럼모터의 고정자 하면과, 상기 상부드럼의 상면 사이에 개재되는 제1피에조 베어링과; 상기 회전축과 접촉되는 상부드럼의 내주면에 마련되는 제2 피에조 베어링과; 상기 상·하부드럼의 지지보스 중 어느 일측면에 선택적으로 마련되는 제3피에조 베어링; 을 포함하는 것을 특징으로 하는 헤드드럼 조립체.A fixed shaft having the stator of the drum motor fixed to the upper end thereof; A lower drum press-fitted to the lower end of the fixed shaft, and a support boss protruding from the center inner surface thereof; An upper drum rotatably installed at an upper portion of the rotating shaft, and a rotor of the drum motor fixedly installed at an upper portion thereof, and an upper drum having a support boss corresponding to the support boss of the lower drum at a lower center surface thereof; A first piezo bearing interposed between the lower surface of the stator of the drum motor and the upper surface of the upper drum; A second piezo bearing provided on an inner circumferential surface of the upper drum in contact with the rotating shaft; A third piezo bearing selectively provided on any one side of the support bosses of the upper and lower drums; Head drum assembly comprising a. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940037244A 1994-12-27 1994-12-27 Head drum assembly KR100213271B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1019940037244A KR100213271B1 (en) 1994-12-27 1994-12-27 Head drum assembly
US08/578,364 US5719723A (en) 1994-12-27 1995-12-26 Head drum assembly for rotating a rotary drum by generating a load bearing air layer
CN95121167A CN1074568C (en) 1994-12-27 1995-12-27 Head drum assembly incorporating therein parts coated with piezoelectric thin film layer
JP7351968A JP2859842B2 (en) 1994-12-27 1995-12-27 Head drum assembly using piezoelectric material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940037244A KR100213271B1 (en) 1994-12-27 1994-12-27 Head drum assembly

Publications (2)

Publication Number Publication Date
KR960025339A true KR960025339A (en) 1996-07-20
KR100213271B1 KR100213271B1 (en) 1999-08-02

Family

ID=19403824

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940037244A KR100213271B1 (en) 1994-12-27 1994-12-27 Head drum assembly

Country Status (1)

Country Link
KR (1) KR100213271B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100830633B1 (en) * 2007-02-07 2008-05-20 세메스 주식회사 Apparatus for processing glass substrate and operating method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100830633B1 (en) * 2007-02-07 2008-05-20 세메스 주식회사 Apparatus for processing glass substrate and operating method thereof

Also Published As

Publication number Publication date
KR100213271B1 (en) 1999-08-02

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