CN1195841A - 磁带录像机用磁头鼓组件 - Google Patents
磁带录像机用磁头鼓组件 Download PDFInfo
- Publication number
- CN1195841A CN1195841A CN98106054A CN98106054A CN1195841A CN 1195841 A CN1195841 A CN 1195841A CN 98106054 A CN98106054 A CN 98106054A CN 98106054 A CN98106054 A CN 98106054A CN 1195841 A CN1195841 A CN 1195841A
- Authority
- CN
- China
- Prior art keywords
- tape
- drum
- head assembly
- absorbing element
- video head
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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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
- G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
- G11B15/43—Control or regulation of mechanical tension of record carrier, e.g. tape tension
-
- 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
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/02—Cabinets; Cases; Stands; Disposition of apparatus therein or thereon
- G11B33/08—Insulation or absorption of undesired vibrations or sounds
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/90—Tape-like record carriers
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
提供一种磁带录像机用磁头鼓组件。该磁头鼓组件利用吸振元件可吸收振动,该吸振元件被弹簧弹性偏压,朝着定鼓的外圆周表面凸出,该弹簧安装在定鼓与磁带相接触部位的开口内。该吸振元件与行进中磁带相接触,根据磁带的行进状况对其产生适当的张力。
Description
本发明涉及磁带录像机用磁头鼓组件,更具体地说,涉及一种以高速旋转的磁头鼓组件,用于通过磁带录像机如盒式磁带录像机(VCR)中的磁头,向磁带记录信息和从磁带重放信息。
参照图1和2,传统的磁头鼓组件包括:转鼓120,由转轴110旋转支承;定鼓130,安装在转鼓120下部固定在底板(未示出)上;定子铁心140,安装在定鼓130下部且其上绕有线圈141;以及转子150,其内圆周表面装有面对定子铁心140的磁铁151。
磁头121安装在转鼓120中。并且,转轴110由轴承111旋转支承在定鼓130上。
借助一对导杆底座11将磁带10从带盒(未示出)中拉出,且以使磁带10与磁头鼓接触的方式走带。磁带10在行进时其底端受阶跃式导槽131引导,该导槽成形于定鼓130的外圆周表面。
并且当转鼓120以高速旋转时,将信息记录到行进的磁带10上和从其上重放出来。
当磁带录像机工作时会产生振动,这是由转鼓120的高速旋转和磁带10与磁头121的接触所造成的。这种振动会在磁带录像机中导致诸如屏幕闪烁、噪声、磁头磨损等等问题。
为解决上述问题,本发明的一个目的是提供一种旋转磁头鼓组件,该组件具有用于在扫描磁带过程中吸收磁带振动的装置。
为实现本发明的上述目的,现提供一种磁带录像机用磁头鼓组件,其包含:定鼓,固定在底板上;转鼓,与转轴合在一起旋转支承在定鼓上;磁头,安装在转鼓中,用于扫描行进中的磁带,其特征在于:该磁头鼓组件含有安装在定鼓中的吸振单元,用于通过与行进的磁带保持接触来吸振。
在此,吸振单元包含有:弹性体,安装在成形于定鼓中的开口内;吸振元件,沿定鼓径向向外方向受到弹性体的弹性偏压,且与行进的磁带保持接触。
优选地,吸振元件与磁带的接触表面为弯圆的。
并且,吸振元件为橡胶或合成树脂。
通过对优选实施例的详细说明并参照附图,将使本发明的上述目的和优点变得更加清楚,附图中:
图1为传统磁带录像机用磁头鼓组件的透视简图;
图2为图1所示磁头鼓细件的横断面简图;
图3为根据本发明的磁带录像机用磁头鼓组件的透视简图;
图4为图3所示磁头鼓组件的横断面简图;
图5为沿图4中V-V线的局部剖视图。
下面将参照图3至5对本发明的优选实施例进行详细说明。在所有图中,相同的附图标记代表相同元件。磁头121安装在由转轴110旋转支承的转鼓120中。定鼓130被安装成在转鼓120的下部固定在底板(未示出)上。
根据本发明,定鼓130中安装有与磁带10保持接触的吸振单元200,用于吸收磁带的振动。
吸振单元200包括:弹性体,例如螺旋弹簧210,安装在成形于定鼓130中的开口132内;以及吸振元件220,沿定鼓130径向向外方向受到螺旋弹簧210的弹性偏压,与行进的磁带10保持接触。
优选地,吸振元件220由橡胶或合成树脂制成。并且,吸振元件220与磁带10的接触表面为弯圆的,以具有预定的曲率。该曲率可根据吸振元件220的特性而有所不同。
螺旋弹簧210的弹力小于磁带10的张力。于是,当磁带10与吸振元件220接触时,优选的是:吸振元件220从其初始位置被磁带10的张力轻微向内推压。
在根据本发明的具有上述构造的磁头鼓组件工作过程中,磁带10借助一对导杆底座11从带盒(未示出)中拉出,并以使磁带与转鼓120和定鼓130相接触的方式走带。磁带10的行进受到阶跃式导槽131的引导,该导槽成形于定鼓130的外圆周表面。
由于吸振元件220沿定鼓130径向向外方向受到螺旋弹簧210的弹性偏压,它对行进中的磁带10通过相互接触而产生适当的张力,从而吸收由于转鼓120高速旋转和磁带10与磁头121相接触所产生的振动。
因此提高了磁头的信号拾取精度,使得屏幕闪烁与噪声受到抑制,从而提高了磁带录像机的工作特性。
Claims (6)
1.一种磁带录像机用磁头鼓组件,其包含:定鼓,固定在底板上;转鼓,与转轴合在一起旋转支承在定鼓上;以及磁头,安装在转鼓中,用于扫描行进中的磁带,其特征在于:该磁头鼓组件具有安装在定鼓中的吸振单元,用于通过与行进中的磁带保持接触来吸振。
2.如权利要求1所述的磁头鼓组件,其特征在于,吸振单元包含有:
弹性体,安装在成形于定鼓中的开口内;以及
吸振元件,沿定鼓径向向外方向受到弹性体的弹性偏压,且与行进中的磁带保持接触。
3.如权利要求2所述的磁头鼓组件,其特征在于:吸振元件与磁带的接触表面为弯圆的。
4.如权利要求2所述的磁头鼓组件,其特征在于:吸振元件为橡胶或合成树脂。
5.如权利要求2所述的磁头鼓组件,其特征在于:弹性体为螺旋弹簧。
6.如权利要求5所述的磁头鼓组件,其特征在于:螺旋弹簧的弹力小于磁带的张力。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR7827/97 | 1997-03-08 | ||
KR1019970007827A KR19980072856A (ko) | 1997-03-08 | 1997-03-08 | 테이프 레코더의 회전 헤드드럼 조립체 |
KR7827/1997 | 1997-03-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1195841A true CN1195841A (zh) | 1998-10-14 |
CN1131510C CN1131510C (zh) | 2003-12-17 |
Family
ID=19499171
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN98106054A Expired - Fee Related CN1131510C (zh) | 1997-03-08 | 1998-03-06 | 磁带录像机用磁头鼓组件 |
Country Status (4)
Country | Link |
---|---|
US (1) | US5999381A (zh) |
JP (1) | JP2930571B2 (zh) |
KR (1) | KR19980072856A (zh) |
CN (1) | CN1131510C (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022104517A1 (zh) * | 2020-11-17 | 2022-05-27 | 杭州育锦科技有限公司 | 一种减速防止振动摩擦损坏节能环保的硬盘加固装置 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2336935B (en) * | 1998-04-30 | 2002-03-27 | Daewoo Electronics Co Ltd | Connecting device for use in a head drum assembly |
KR100737798B1 (ko) * | 2001-07-13 | 2007-07-10 | 주식회사 포스코 | 서지호퍼의 괴광 제거장치 |
US8089726B2 (en) * | 2008-03-25 | 2012-01-03 | Oracle America, Inc. | Method for counteracting longitudinal oscillations of magnetic tape in a tape drive system |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2281607A1 (fr) * | 1974-08-05 | 1976-03-05 | Staar Sa | Dispositif de positionnement d'une bande magnetique dans un appareil d'enregistrement et/ou de reproduction a tete rotative |
JPS586547A (ja) * | 1981-07-03 | 1983-01-14 | Sony Corp | 回転磁気ヘツドドラム |
US5502607A (en) * | 1987-11-02 | 1996-03-26 | Canon Kabushiki Kaisha | Recording or reproducing apparatus |
JPH02203459A (ja) * | 1989-02-01 | 1990-08-13 | Mitsubishi Electric Corp | 回転磁気ヘッド装置 |
US5220475A (en) * | 1989-08-04 | 1993-06-15 | Canon Kabushiki Kaisha | Rotary head drum unit with grooves or protrusions on a stationary drum for lessening tape contact during rewinding |
KR940009170B1 (ko) * | 1990-12-29 | 1994-10-01 | 삼성전자 주식회사 | 로터리 헤드드럼 |
JPH04252412A (ja) * | 1991-01-28 | 1992-09-08 | Matsushita Electric Ind Co Ltd | 回転ドラム装置 |
JP3025032B2 (ja) * | 1991-01-28 | 2000-03-27 | 松下電器産業株式会社 | 回転ヘッド装置 |
JPH0541000A (ja) * | 1991-08-07 | 1993-02-19 | Matsushita Electric Ind Co Ltd | 回転ヘツドシリンダ |
JPH0620350A (ja) * | 1992-07-03 | 1994-01-28 | Matsushita Electric Ind Co Ltd | 回転ヘッド装置 |
US5452169A (en) * | 1993-03-19 | 1995-09-19 | Goldstar Co., Ltd. | Variable bulge device for rotatable head drum |
JPH0765333A (ja) * | 1993-08-24 | 1995-03-10 | Canon Inc | 記録再生装置のドラム装置 |
-
1997
- 1997-03-08 KR KR1019970007827A patent/KR19980072856A/ko not_active Application Discontinuation
-
1998
- 1998-02-27 JP JP10047926A patent/JP2930571B2/ja not_active Expired - Fee Related
- 1998-02-27 US US09/032,570 patent/US5999381A/en not_active Expired - Fee Related
- 1998-03-06 CN CN98106054A patent/CN1131510C/zh not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022104517A1 (zh) * | 2020-11-17 | 2022-05-27 | 杭州育锦科技有限公司 | 一种减速防止振动摩擦损坏节能环保的硬盘加固装置 |
Also Published As
Publication number | Publication date |
---|---|
CN1131510C (zh) | 2003-12-17 |
US5999381A (en) | 1999-12-07 |
KR19980072856A (ko) | 1998-11-05 |
JPH10320730A (ja) | 1998-12-04 |
JP2930571B2 (ja) | 1999-08-03 |
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C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C06 | Publication | ||
PB01 | Publication | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031217 Termination date: 20100306 |