JP2654020B2 - Linear motor - Google Patents
Linear motorInfo
- Publication number
- JP2654020B2 JP2654020B2 JP62164264A JP16426487A JP2654020B2 JP 2654020 B2 JP2654020 B2 JP 2654020B2 JP 62164264 A JP62164264 A JP 62164264A JP 16426487 A JP16426487 A JP 16426487A JP 2654020 B2 JP2654020 B2 JP 2654020B2
- Authority
- JP
- Japan
- Prior art keywords
- mover
- base
- linear motor
- rolling member
- stator
- 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.)
- Expired - Fee Related
Links
Landscapes
- Linear Motors (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明はリニアモータの構造に関する。The present invention relates to a structure of a linear motor.
従来、例えばフロッピィディスク装置の磁気ヘッド駆
動機構に用いられるリニアモータには、可動子の最大移
動位置あるいは、移動量を制限する構造を有していなか
った。Conventionally, for example, a linear motor used for a magnetic head drive mechanism of a floppy disk drive has not been provided with a structure for limiting the maximum movement position or the movement amount of the mover.
上述した従来のリニアモータには、可動子の最大移動
位置あるいは移動量を制限する構造にはなっていなかっ
たため、フロッピーディスク装置の磁気ヘッド駆動用に
使用する場合などは、リニアモータ本体外部に可動子の
移動を制限する制限壁を設けなければならなかった。従
って、可動子と制限壁との相対位置関係を正確に決定す
ることが困難であり、制限壁は磁気ヘッドの相対位置に
合うように調整して固定しなければならないという欠点
があった。The conventional linear motor described above does not have a structure that limits the maximum movement position or the movement amount of the mover, so when it is used for driving a magnetic head of a floppy disk drive, it is movable outside the linear motor body. Restriction walls had to be provided to limit the movement of the child. Therefore, it is difficult to accurately determine the relative positional relationship between the mover and the limiting wall, and the limiting wall must be adjusted and fixed so as to match the relative position of the magnetic head.
本発明のリニアモータは、１次鉄心，駆動巻線，永久
磁石を基台上に一体的に成形し、基台の一部に可動子移
動制限部を設けた固定子と、この制限部に当接する当接
部を有する可動子とを有している。A linear motor according to the present invention includes a stator in which a primary iron core, a drive winding, and a permanent magnet are integrally formed on a base, and a stator provided with a mover movement restriction part in a part of the base. And a mover having an abutting portion that abuts.
次に、本発明について図面を参照して説明する。 Next, the present invention will be described with reference to the drawings.
第１図および第２図は、本発明の一実施例の平面図お
よび側面図である。固定子１は１次鉄心2,駆動巻線3,永
久磁石4,制限部５により構成される。可動子６は当接部
６−a,当接部６−b,1次鉄心磁極歯２−ａに対向する面
に設けられた２次鉄心磁極歯６−ｃとを有する。転動部
材７は１次鉄心２と２次鉄心磁極歯６−ｃとの空隙長を
保って可動子６に円滑な直線運動を行なわせる。1 and 2 are a plan view and a side view of an embodiment of the present invention. The stator 1 includes a primary iron core 2, a driving winding 3, a permanent magnet 4, and a limiting part 5. The mover 6 has a contact portion 6-a, a contact portion 6-b, and a secondary core magnetic pole tooth 6-c provided on a surface facing the primary core magnetic pole tooth 2-a. The rolling member 7 keeps the gap length between the primary iron core 2 and the secondary iron core magnetic pole teeth 6-c to make the mover 6 perform a smooth linear motion.
可動子６は駆動巻線３に流される駆動電流と永久磁石
4,1次鉄心磁極歯２−a,2次鉄心磁極歯６−ｃとの相互作
用によって＋Ｙあるいは−Ｙの方向にステップ駆動され
る。＋Ｙ方向の移動制限は、第３図に示すように当接部
６−ｂによって規制され、−Ｙ方向の移動制限は第１図
に示すように当接部６−ａが制限部５に当接することに
よって規制される。The mover 6 is composed of a drive current flowing through the drive winding 3 and a permanent magnet.
4. Step driving is performed in the + Y or -Y direction by the interaction with the primary iron core magnetic pole teeth 2-a and the secondary iron core magnetic pole teeth 6-c. The movement restriction in the + Y direction is restricted by the contact portion 6-b as shown in FIG. 3, and the movement restriction in the −Y direction is such that the contact portion 6-a contacts the restriction portion 5 as shown in FIG. It is regulated by contact.
以上説明したように、本発明は固定子の基台の一部に
可動子の移動を制限する制限部を設けることにより、リ
ニアモータ自体で可動子の最大移動位置あるいは移動量
を設定できるため、フロッピーディスク装置の磁気ヘッ
ド駆動用に使用した場合、磁気ヘッドの媒体最外周位置
あるいは最内周位置の設定を極めて高い精度で設定でき
るという効果がある。As described above, the present invention provides a limiter that restricts the movement of the mover on a part of the stator base, so that the linear motor itself can set the maximum movement position or movement amount of the mover, When used for driving a magnetic head of a floppy disk drive, there is an effect that the outermost or innermost position of the magnetic head can be set with extremely high accuracy.
第１図および第２図は本発明の一実施例のリニアモータ
の平面図および側面図、第３図は可動子が＋Ｙ方向に最
大移動した状態を示す図である。 １……固定子、１−ａ……基台、２……１次鉄心、２−
ａ……１次鉄心磁極歯、３……駆動巻線、４……永久磁
石、５……制限部、６……可動子、６−ａ……当接部、
６−ｂ……当接部、６−ｃ……２次鉄心磁極歯、７……
転動部材。1 and 2 are a plan view and a side view of a linear motor according to an embodiment of the present invention, and FIG. 3 is a view showing a state in which a movable element has moved to a maximum in a + Y direction. 1 ... stator, 1-a ... base, 2 ... primary iron core, 2-
a: primary iron core magnetic pole teeth, 3: drive winding, 4: permanent magnet, 5: limiting part, 6: mover, 6-a ... contact part,
6-b abutting portion, 6-c secondary magnetic pole teeth 7, 7
Rolling member.
Claims (1)
上に一体的に成形した固定子と、前記基台上に設けられ
た転動部材と、前記転動部材を介して前記基台上に直線
運動可能に設けられ前記１次鉄心に対向する２次鉄心磁
極歯を有する可動子とを具備するリニアモータにおい
て、前記固定子の基台の一部に前記可動子の移動を制限
する制限部を設け、前記可動子に前記制限部に当接して
前記、可動子の最大移動位置を制限する当接部を設けた
ことを特徴とするリニアモータ。A stator integrally formed on a base with a primary iron core, a drive winding and a permanent magnet; a rolling member provided on the base; and a rolling member provided on the base via the rolling member. A mover provided on the base so as to be capable of linear movement and having a magnetic pole tooth of a secondary core facing the primary core, wherein the mover is moved to a part of the base of the stator. A linear motor, further comprising a restricting portion for restricting, and a contact portion for restricting a maximum movement position of the mover by contacting the mover with the restricting portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62164264A JP2654020B2 (en) | 1987-06-30 | 1987-06-30 | Linear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62164264A JP2654020B2 (en) | 1987-06-30 | 1987-06-30 | Linear motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS648863A JPS648863A (en) | 1989-01-12 |
| JP2654020B2 true JP2654020B2 (en) | 1997-09-17 |
Family
ID=15789784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62164264A Expired - Fee Related JP2654020B2 (en) | 1987-06-30 | 1987-06-30 | Linear motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2654020B2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61224856A (en) * | 1985-03-29 | 1986-10-06 | Shinko Electric Co Ltd | Guiding device for moving unit |
| JPS61295857A (en) * | 1985-06-22 | 1986-12-26 | Shinko Electric Co Ltd | Linear pulse motor |
| JPS6212368A (en) * | 1985-07-05 | 1987-01-21 | Shinko Electric Co Ltd | Initially setting method for linear pulse motor |
-
1987
- 1987-06-30 JP JP62164264A patent/JP2654020B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS648863A (en) | 1989-01-12 |
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