JPH08116644A - Side pressure unit for miniature motor - Google Patents
Side pressure unit for miniature motorInfo
- Publication number
- JPH08116644A JPH08116644A JP25187794A JP25187794A JPH08116644A JP H08116644 A JPH08116644 A JP H08116644A JP 25187794 A JP25187794 A JP 25187794A JP 25187794 A JP25187794 A JP 25187794A JP H08116644 A JPH08116644 A JP H08116644A
- Authority
- JP
- Japan
- Prior art keywords
- side pressure
- motor
- lateral pressure
- metal
- output shaft
- 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.)
- Pending
Links
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ＣＤやＭＤなどのディ
スク回転伝達に用いる小型モータの側圧装置に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a side pressure device for a small motor used for transmitting rotation of a disc such as a CD or MD.
【０００２】[0002]
【従来の技術】近年、ＣＤやＭＤなどの機器は低コス
ト，高信頼性の要望が多くなり、それに使用されるモー
タも軸受に安価な含油メタルを用いたブラシレスモータ
が採用されつつある。2. Description of the Related Art In recent years, there have been increasing demands for low cost and high reliability of devices such as CDs and MDs, and brushless motors using inexpensive oil-impregnated metal for bearings are being adopted as motors used therefor.
【０００３】以下に、従来の小型モータを用いたディス
ク回転伝達機構の一例について図面を参照しながら説明
する。An example of a conventional disk rotation transmitting mechanism using a small motor will be described below with reference to the drawings.
【０００４】図４は従来の小型モータを用いたディスク
回転伝達機構の断面図を示すものである。図４におい
て、１は回転伝達を行う出力軸、２は出力軸を支える含
油メタル、３はモータを取付けるための取付板またはシ
ャーシである。出力軸１にはディスク５を装着するため
のターンテーブル４が圧入または接着で固定されてい
る。また、ディスク５がスリップしないようにマグネッ
トまたはバネを有したクランパー６で固定されている。FIG. 4 is a sectional view of a disk rotation transmission mechanism using a conventional small motor. In FIG. 4, 1 is an output shaft for transmitting rotation, 2 is an oil-containing metal that supports the output shaft, and 3 is a mounting plate or chassis for mounting a motor. A turntable 4 for mounting a disk 5 is fixed to the output shaft 1 by press fitting or adhesion. Further, the disk 5 is fixed by a clamper 6 having a magnet or a spring so as not to slip.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら上記従来
の構成では、ディスク５のアンバランスや振れにより含
油メタル２の内径と出力軸１との隙間（以下クリアラン
スと称す）分、軸ガタが発生しディスク信号の読み取り
が困難となりＲＥＡＤエラーが発生するという問題点を
有していた。However, in the above-mentioned conventional structure, due to the imbalance and the wobbling of the disk 5, a shaft play is generated by a gap between the inner diameter of the oil-impregnated metal 2 and the output shaft 1 (hereinafter referred to as a clearance). There is a problem that it becomes difficult to read the signal and a READ error occurs.
【０００６】本発明は上記従来の問題点を解決するもの
で、軸ガタを容易に抑制でき、容易に自動組立が可能で
かつ安価な小型モータの側圧装置を提供することを目的
とする。An object of the present invention is to solve the above-mentioned conventional problems, and it is an object of the present invention to provide a side pressure device for a small motor which can easily suppress shaft backlash, can be easily automatically assembled, and is inexpensive.
【０００７】[0007]
【課題を解決するための手段】この目的を達成するため
に本発明の小型モータの側圧装置は、側圧メタルと側圧
バネを用いた構成となっている。In order to achieve this object, the side pressure device for a small-sized motor of the present invention has a structure using a side pressure metal and a side pressure spring.
【０００８】[0008]
【作用】この構成によって、側圧バネの弾性を利用し側
圧メタルを介して出力軸に側圧をかけ、含油メタル内径
に出力軸を一定の力で押し当て軸ガタをなくすことがで
きる。With this structure, the elasticity of the lateral pressure spring is utilized to apply lateral pressure to the output shaft through the lateral pressure metal, and the output shaft is pressed against the oil-impregnated metal inner diameter with a constant force to eliminate the axial play.
【０００９】[0009]
【実施例】以下、本発明の一実施例について図面を参照
しながら説明する。An embodiment of the present invention will be described below with reference to the drawings.
【００１０】図１に本発明の一実施例における小型モー
タの側圧装置の断面図を示す。図１において、１は回転
伝達を行う出力軸、２は出力軸を支える含油メタル、３
はモータを取付けるための取付板またはシャーシであ
る。出力軸１にはディスク５を装着するためのターンテ
ーブル４が圧入または接着で固定されている。また、デ
ィスク５がスリップしないようにマグネットまたはバネ
でスラスト方向の力をかけるクランパー６で固定されて
いる。７は側圧を出力軸に与えるための側圧メタルであ
り、その外周部には０．１mm〜１．０mmの深さの溝が加
工されている。８はφ０．３mmの弾性を有する棒状の側
圧バネである。FIG. 1 is a sectional view of a lateral pressure device for a small motor according to an embodiment of the present invention. In FIG. 1, 1 is an output shaft that transmits rotation, 2 is an oil-impregnated metal that supports the output shaft, and 3
Is a mounting plate or chassis for mounting the motor. A turntable 4 for mounting a disk 5 is fixed to the output shaft 1 by press fitting or adhesion. The disk 5 is fixed by a clamper 6 that applies a force in the thrust direction with a magnet or a spring so that the disk 5 does not slip. Reference numeral 7 denotes a lateral pressure metal for applying a lateral pressure to the output shaft, and a groove having a depth of 0.1 mm to 1.0 mm is machined on the outer peripheral portion thereof. Reference numeral 8 is a rod-shaped side pressure spring having elasticity of φ0.3 mm.
【００１１】以上のように構成された小型モータの側圧
装置について、図２，図３を用いてその動作を説明す
る。まず、図２はモータを取付板に取付ける前の状態を
示した立体図であり、３は取付板、８はφ０．３mmの弾
性を有する棒状の側圧バネである。９はモータ挿入方向
に対しほぼ直角に配置した長方形の穴であり、側圧バネ
８の片端が移動自在に挿入されて、もう一方の端は側圧
バネの径より若干大きめの穴部１０に挿入固定されてい
る。モータの出力軸にはすでに側圧メタル７が回転自在
に挿入されており、モータ挿入方向１１より小型モータ
１２を挿入すると図３に示す位置で側圧バネの弾性力が
側圧メタルに働き、長方形穴に挿入された側圧メタルの
片端がスライドし、出力軸に安定したＰ方向の側圧が加
わることになる。The operation of the lateral pressure device for a small motor configured as described above will be described with reference to FIGS. First, FIG. 2 is a three-dimensional view showing a state before the motor is mounted on the mounting plate, 3 is the mounting plate, and 8 is a rod-shaped side pressure spring having elasticity of φ0.3 mm. Reference numeral 9 is a rectangular hole arranged almost at right angles to the motor insertion direction. One end of the side pressure spring 8 is movably inserted, and the other end is inserted and fixed in a hole 10 slightly larger than the diameter of the side pressure spring. Has been done. The lateral pressure metal 7 is already rotatably inserted into the output shaft of the motor. When the small motor 12 is inserted from the motor insertion direction 11, the elastic force of the lateral pressure spring acts on the lateral pressure metal at the position shown in FIG. One end of the inserted lateral pressure metal slides, and a stable lateral pressure in the P direction is applied to the output shaft.
【００１２】[0012]
【発明の効果】以上のように本発明は、側圧メタルと側
圧バネを用い、さらに取付板にモータ挿入方向とほぼ直
角に配置した長方形穴を有し、側圧バネの片端が前記長
方形穴を移動自在に配設することにより安定した側圧を
出力軸に加えることができ、安価でかつ自動化が容易に
できる小型モータの側圧装置が実現できるものである。As described above, according to the present invention, the side pressure metal and the side pressure spring are used, and further, the mounting plate has the rectangular hole arranged substantially perpendicular to the motor insertion direction, and one end of the side pressure spring moves in the rectangular hole. By arranging it freely, a stable lateral pressure can be applied to the output shaft, and it is possible to realize a lateral pressure device for a small motor that is inexpensive and can be easily automated.
【図１】本発明の一実施例における小型モータの側圧装
置の断面図FIG. 1 is a sectional view of a lateral pressure device for a small motor according to an embodiment of the present invention.
【図２】同実施例における小型モータの側圧装置の動作
説明のための立体図FIG. 2 is a three-dimensional view for explaining the operation of the side pressure device for a small motor in the same embodiment.
【図３】同実施例における小型モータの側圧装置で出力
軸に側圧がかかった状態を示す立体図FIG. 3 is a three-dimensional view showing a state in which lateral pressure is applied to the output shaft in the lateral pressure device for the small motor in the embodiment.
【図４】従来の小型モータを用いたディスク回転伝達機
構の断面図FIG. 4 is a sectional view of a disk rotation transmission mechanism using a conventional small motor.
【符号の説明】 １ 出力軸 ２ 含油メタル ３ モータ取付板またはシャーシ ４ ターンテーブル ５ ディスク ６ クランパー ７ 側圧メタル ８ 側圧バネ ９ 取付板またはシャーシ上に設けた長方形穴 １０ 側圧バネ固定穴 １１ モータ挿入方向 １２ 小型モータ[Explanation of symbols] 1 Output shaft 2 Oil-impregnated metal 3 Motor mounting plate or chassis 4 Turntable 5 Disc 6 Clamper 7 Side pressure metal 8 Side pressure spring 9 Rectangular hole provided on the mounting plate or chassis 10 Side pressure spring fixing hole 11 Motor insertion direction 12 Small motor
Claims (2)
って、この出力軸に側圧メタルが挿入してあり、前記側
圧メタルの外周側面には０．１mmから１．０mmの深さの
溝部が加工されていて、この溝部にφ０．２〜０．９mm
の弾性を有する棒状の側圧バネが接触し、前記側圧バネ
の弾性により前記側圧メタルを介して前記出力軸を押圧
したことを特徴とした小型モータの側圧装置。1. A small motor having an oil-impregnated metal in a bearing, wherein a lateral pressure metal is inserted into the output shaft, and a groove portion having a depth of 0.1 mm to 1.0 mm is formed on an outer peripheral side surface of the lateral pressure metal. Has been processed, and this groove has a diameter of 0.2 to 0.9 mm.
A lateral pressure device for a small motor, characterized in that a rod-shaped lateral pressure spring having elasticity is contacted and the elasticity of the lateral pressure spring presses the output shaft via the lateral pressure metal.
取付け部にはモータ挿入方向とほぼ直角に長方形の穴ま
たは長穴があり、前記側圧バネの片端が長方形穴または
長穴に移動自在な状態で挿入されたことを特徴とした請
求項１記載の小型モータの側圧装置。2. A side pressure spring exists near the motor mounting portion,
2. The mounting portion has a rectangular hole or an elongated hole substantially at right angles to the motor insertion direction, and one end of the side pressure spring is inserted into the rectangular hole or the elongated hole in a freely movable state. Side pressure device for small motors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25187794A JPH08116644A (en) | 1994-10-18 | 1994-10-18 | Side pressure unit for miniature motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25187794A JPH08116644A (en) | 1994-10-18 | 1994-10-18 | Side pressure unit for miniature motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08116644A true JPH08116644A (en) | 1996-05-07 |
Family
ID=17229270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25187794A Pending JPH08116644A (en) | 1994-10-18 | 1994-10-18 | Side pressure unit for miniature motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08116644A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010086626A (en) * | 2008-10-01 | 2010-04-15 | Kenwood Corp | Mechanism for biasing rotation axis of motor and disc reproducing apparatus |
| KR20190021919A (en) * | 2017-08-24 | 2019-03-06 | 황요섭 | Fixing device for BLDC motor |
-
1994
- 1994-10-18 JP JP25187794A patent/JPH08116644A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010086626A (en) * | 2008-10-01 | 2010-04-15 | Kenwood Corp | Mechanism for biasing rotation axis of motor and disc reproducing apparatus |
| KR20190021919A (en) * | 2017-08-24 | 2019-03-06 | 황요섭 | Fixing device for BLDC motor |
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