JP2004320871A - Sliding device - Google Patents

Sliding device Download PDF

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Publication number
JP2004320871A
JP2004320871A JP2003109824A JP2003109824A JP2004320871A JP 2004320871 A JP2004320871 A JP 2004320871A JP 2003109824 A JP2003109824 A JP 2003109824A JP 2003109824 A JP2003109824 A JP 2003109824A JP 2004320871 A JP2004320871 A JP 2004320871A
Authority
JP
Japan
Prior art keywords
sliding
shaft
housing
sliding device
coil
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
Application number
JP2003109824A
Other languages
Japanese (ja)
Inventor
Mitsuru Yamazaki
充 山崎
Tadashi Saji
匡 佐治
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Bearing Co Ltd
Original Assignee
Nippon Bearing Co Ltd
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 Nippon Bearing Co Ltd filed Critical Nippon Bearing Co Ltd
Priority to JP2003109824A priority Critical patent/JP2004320871A/en
Publication of JP2004320871A publication Critical patent/JP2004320871A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
    • F16C29/063—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body, e.g. a carriage or part thereof, provided between the legs of a U-shaped guide rail or track
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
    • H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
    • 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
    • F16C2322/00—Apparatus used in shaping articles
    • F16C2322/39—General build up of machine tools, e.g. spindles, slides, actuators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sliding device simple in structure, reduced in cost, compact in size, and superior in strength. <P>SOLUTION: The sliding device is composed of a sliding body 2 with a shaft engaging part formed therein 4, and a shaft 1 that is inserted in the shaft engaging part 4 of the sliding body 2 and installed to a housing 3. The sliding body 2 and the housing 3 are provided with a sliding mechanism that slides the sliding body 2 to the housing 3. Either the shaft 1 or the shaft engaging part 4 is provided with a magnet and the other with a coil 7, and the sliding device is constituted so that the sliding body 2 linearly slides relative to the shaft 1 by electromagnetic inductions by the magnet and the coil 7. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、摺動装置に関するものである。
【０００２】
【従来の技術及び発明が解決しようとする課題】
一般的なアクチュエータは、摺動体とこの摺動体が嵌合される断面視Ｕ字状のハウジングとから成り、この摺動体とハウジングとには摺動機構が設けられ、この摺動体は適宜な駆動手段により往復摺動されるものである。
【０００３】
この駆動手段として一般的に用いられるものは、ハウジングにボールネジが架設され、摺動体には該ボールネジと螺合する螺子孔が設けられた所謂ボールネジ機構である。
【０００４】
しかし、このボールネジ機構には、ボールネジと螺合孔との螺合による摩耗やボールネジの円滑な回転のために用いられる潤滑油の飛散という問題がある。
【０００５】
そこで、前記駆動手段として、機械的な回転及び接触によらずに摺動体を摺動移動させるリニアモータ機構を採用したアクチュエータが注目されている。
【０００６】
このリニアモータ機構を使用したアクチュエータは、例えば図１に図示したように、底部材２１ａの両側に側部材２１ｂ・２１ｃを立設した断面視略Ｕ字状のハウジング２１の該側部材２１ｂ・２１ｃの夫々の上面に摺動軸２２が設けられ、更に、側部材２１ｂ・２１ｃの間にして該側部材２１ｂ・２１ｃの長さ方向には磁石で構成される軸２５（固定子）が設けられ、一方、下面に前記摺動軸２２に被嵌される摺動体２３を付設したテーブル体２４が設けられ、このテーブル体２４は摺動体２３が前記摺動軸２２に被嵌された状態でハウジング２１の上方に位置せしめられており、摺動軸２２と摺動体２３との間には複数の転動体２６を配設した摺動機構が設けられ、テーブル体２４の下面にして前記摺動体２３間には前記軸２５が少許の間隙を介して貫挿されコイル２７が内装された可動子２８が設けられた構成であり、固定子と可動子２８との電磁誘導により前記テーブル体２４が往復摺動するものである。
【０００７】
しかし、この図１に図示したアクチュエータは、固定子及び可動子２８の他に摺動軸２２及び摺動体２３が設けられており、その分、部品の点数が多く、それだけコスト高となり、更に、強度の低下及び大型化は避けられないという問題がある。
【０００８】
本発明は、上述のような現状に鑑みて成されたもので、リニアモータ機構と摺動機構とを一部材にまとめて設けて一体化し、よって、簡易構造にしてコンパクトで且つ強度に秀れる実用性秀れた摺動装置を提供するものである。
【０００９】
【課題を解決するための手段】
添付図面を参照して本発明の要旨を説明する。
【００１０】
軸嵌合部４が形成された摺動体２と、該摺動体２の前記軸嵌合部４に貫挿されハウジング３に設けられる軸１とから成り、摺動体２とハウジング３とには該摺動体２をハウジング３に対して摺動させる摺動機構が設けられた摺動装置であって、軸１及び軸嵌合部４のうち、いずれか一方には磁石が、また、他方にはコイル７が設けられ、該磁石とコイル７とによる電磁誘導により摺動体２が軸１に対して直線摺動するように構成されていることを特徴とする摺動装置に係るものである。
【００１１】
また、請求項１記載の摺動装置において、軸１に磁石が設けられ、軸嵌合部４にコイル７が設けられていることを特徴とする摺動装置に係るものである。
【００１２】
また、請求項１，２いずれか１項に記載の摺動装置において、軸１が磁石であることを特徴とする摺動装置に係るものである。
【００１３】
また、請求項１〜３いずれか１項に記載の摺動装置において、軸嵌合部４の表面にコイル７が設けられていることを特徴とする摺動装置に係るものである。
【００１４】
また、請求項１〜４いずれか１項に記載の摺動装置において、ハウジング３は、底部材３ａの両側に側部材３ｂ・３ｃが設けられた断面視Ｕ字状の構成であり、摺動体２はこの側部材３ｂ・３ｃ間に位置するように構成されていることを特徴とする摺動装置に係るものである。
【００１５】
また、請求項１〜５いずれか１項に記載の摺動装置において、摺動機構として、ハウジング３と摺動体２との間に負荷路５が設けられ、摺動体２には無負荷路６と、該無負荷路６と前記負荷路５を連通するリターン路とが設けられ、更に、負荷路５と無負荷路６とリターン路とで構成される無限循環部には転動体９が配設され、摺動体２がハウジング３に対して摺動移動する際、前記転動体９が該無限循環部を転動移動するように構成されている摺動機構が採用されていることを特徴とする摺動装置に係るものである。
【００１６】
【発明の作用及び効果】
磁石とコイル７とから成るリニアモータ機構と摺動機構とを摺動体２にまとめて設けることで一体化した構成であるから、摺動装置を構成する部品点数を少なくでき、構成をより簡略化してコンパクトで且つ強度に秀れたものとすることができる。
【００１７】
従って、本発明は、簡易な構造にしてコスト安で且つコンパクトで強度に秀れる摺動装置となる。
【００１８】
【発明の実施の形態】
図２，３は本発明の一実施例を図示したものであり、以下に説明する。
【００１９】
本実施例は、軸嵌合部４を有する摺動体２と、該摺動体２の前記軸嵌合部４に貫挿されハウジング３に設けられる軸１とから成り、摺動体２とハウジング３とには該摺動体２をハウジング３に対して摺動させる摺動機構が設けられた摺動装置である。
【００２０】
摺動機構は、ハウジング３と摺動体２との間に負荷路５が設けられ、摺動体２には無負荷路６と、該無負荷路６と前記負荷路５を連通するリターン路とが設けられ、更に、負荷路５と無負荷路６とリターン路とで構成される無限循環部には転動体９が配設され、摺動体２がハウジング３に対して摺動移動する際、前記転動体９が該無限循環部を転動移動するように構成された摺動機構である。
【００２１】
また、摺動体２の駆動手段は、公知のリニアモータ機構であって、具体的には、軸１は磁石で構成され、また、摺動体２の軸嵌合部４（軸孔）の表面（周面）には筒状のコイル７が設けられ、磁石である前記軸１と前記摺動体２のコイル７とによる電磁誘導により摺動体２が軸１に対して直線摺動するように構成されている。
【００２２】
前記無限循環部は、具体的には、前記摺動体２側面とハウジング３の側部材３ｂ・３ｃの内側面とに夫々形成された上下二段の負荷溝及び負荷溝５’により形成される負荷路５と、前記摺動体２内面に穿設された穿設孔により形成される無負荷路６と、この負荷路５と無負荷路６とを半円弧状のリターン路で連結して構成されている。
【００２３】
本実施例においては、この無限循環部を図３に図示したように、前記摺動体２の一側面に二カ所ずつ、計四カ所に形成している。尚、この無限循環部はどのように形成しても良く、前記摺動体２の一側面に一カ所ずつ形成しても良いし、更に多数形成しても良い。
【００２４】
各部を具体的に説明する。
【００２５】
軸１は、永久磁石で形成された軸１が採用されている。
【００２６】
軸１全体を磁石とする構成でなく、コイル７との電磁誘導作用により十分な推力を得られるのであれば一部に磁石を配したものを採用しても良い。
【００２７】
摺動体２は、断面視略長方形状の金属製のものが採用されている。この摺動体２は、全体を同一の金属で構成しても良いし、例えば、前記負荷路５を構成する負荷溝が形成される部分のみを強度に秀れたステンレス製とし、他の部分を軽量なアルミニウム製としても良い。
【００２８】
この摺動体２の略中央部には軸１を貫挿する軸孔が穿設され、この軸孔が軸嵌合部４に設定されている。
【００２９】
また、この軸孔の表面（周面）には筒状のコイル７が配設される。尚、一部にコイル７を設けた筒体を配設しても良い。
【００３０】
軸孔の径は、この軸孔面にコイル７を配置した際、前記軸１の径よりやや径大となるように設定されている。即ち、前記軸１をこの軸孔に貫挿した際、軸１とコイル７とが接触しない状態となるように少許の間隙が形成されている。
【００３１】
また、本実施例においては、軸孔を軸嵌合部４としているが、軸嵌合部４は、上部を開口する溝状とする等、他の構成でも良い。
【００３２】
ハウジング３は、断面視Ｕ字状の金属製のものが採用されている。具体的には、底部材３ａの両側に側部材３ｂ・３ｃが設けられた構成であり、摺動体２がこの側部材３ｂ・３ｃ間の凹部に略嵌合状態で配設されるように構成されている。このように断面視Ｕ字状とすることでハウジング３の剛性が向上する。
【００３３】
また、ハウジング３の底部材３ａと、摺動体２の底面とは接触しないように構成している。即ち、摺動体２の摺動移動が阻害されることがなく、良好な摺動移動を達成できるように構成されている。
【００３４】
尚、本実施例においては、前記軸１を磁石とし、軸嵌合部４にコイル７を設けた構成としているが、逆に軸１にコイル７を設け、軸嵌合部４に磁石を設けた構成としても良い。
【００３５】
本実施例は上述のように、磁石とコイル７とから成るリニアモータ機構と摺動機構とを摺動体２にまとめて設けることで一体化した構成であるから、摺動装置を構成する部品点数を少なくでき、構成をより簡略化してコンパクトで且つ強度に秀れたものとすることができる。
【００３６】
また、無限循環部（負荷路５）を摺動体２の一側面に複数設けているから、摺動体２が一層良好に摺動移動できることになる。
【００３７】
しかも、リニアモータ機構を構成する軸１とコイル７とが接触しない構成であるから、従来のように接触部が摩耗したり、潤滑油を飛散したりすることがない。
【００３８】
従って、本実施例は、簡易な構造にしてコスト安で且つコンパクトで強度に秀れる実用性に秀れた摺動装置となる。
【図面の簡単な説明】
【図１】従来例の概略説明断面図である。
【図２】本実施例の概略説明斜視図である。
【図３】本実施例の概略説明断面図である。
【符号の説明】
１ 軸
２ 摺動体
３ ハウジング
３ａ 底部材
３ｂ・３ｃ 側部材
４ 軸嵌合部
５ 負荷路
６ 無負荷路
７ コイル
９ 転動体[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a sliding device.
[0002]
Problems to be solved by the prior art and the invention
A general actuator includes a sliding body and a housing having a U-shaped cross section in which the sliding body is fitted. The sliding body and the housing are provided with a sliding mechanism. It is slid back and forth by the means.
[0003]
What is generally used as this driving means is a so-called ball screw mechanism in which a ball screw is provided on a housing and a screw hole for screwing with the ball screw is provided on a sliding body.
[0004]
However, this ball screw mechanism has problems such as wear due to screwing of the ball screw and the screw hole, and scattering of lubricating oil used for smooth rotation of the ball screw.
[0005]
Accordingly, an actuator employing a linear motor mechanism for slidingly moving a sliding body without relying on mechanical rotation and contact has attracted attention as the driving means.
[0006]
An actuator using this linear motor mechanism is, for example, as shown in FIG. 1, the side members 21b and 21c of a housing 21 having a substantially U-shaped cross section when side members 21b and 21c are erected on both sides of a bottom member 21a. A slide shaft 22 is provided on each of the upper surfaces, and a shaft 25 (stator) composed of a magnet is provided between the side members 21b and 21c in the longitudinal direction of the side members 21b and 21c. On the other hand, a table body 24 provided with a sliding body 23 fitted on the sliding shaft 22 on the lower surface is provided. The table body 24 is mounted on the housing with the sliding body 23 fitted on the sliding shaft 22. A sliding mechanism having a plurality of rolling elements 26 disposed between the sliding shaft 22 and the sliding body 23 is provided between the sliding shaft 22 and the sliding body 23. Between the shaft 25 A configuration in which the movable element 28 the coil 27 is furnished is inserted through through gap is provided, the table body 24 by electromagnetic induction between the stator and the mover 28 is intended to slide reciprocally.
[0007]
However, the actuator shown in FIG. 1 is provided with the sliding shaft 22 and the sliding body 23 in addition to the stator and the mover 28, and accordingly, the number of parts is increased, and the cost is increased. There is a problem that a decrease in strength and an increase in size are inevitable.
[0008]
SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned situation, and has a linear motor mechanism and a sliding mechanism provided as a single member and integrated, thereby having a simple structure and excellent compactness and strength. It is intended to provide a sliding device excellent in practicality.
[0009]
[Means for Solving the Problems]
The gist of the present invention will be described with reference to the accompanying drawings.
[0010]
A sliding body 2 having a shaft fitting portion 4 formed thereon, and a shaft 1 which is inserted through the shaft fitting portion 4 of the sliding body 2 and is provided in a housing 3. A sliding device provided with a sliding mechanism for sliding a sliding body 2 with respect to a housing 3, wherein one of a shaft 1 and a shaft fitting portion 4 has a magnet, and the other has a magnet. The present invention relates to a sliding device, wherein a coil 7 is provided, and the sliding body 2 is configured to slide linearly with respect to the shaft 1 by electromagnetic induction by the magnet and the coil 7.
[0011]
Further, in the sliding device according to the first aspect, a magnet is provided on the shaft 1 and a coil 7 is provided on the shaft fitting portion 4.
[0012]
Further, in the sliding device according to any one of claims 1 and 2, the shaft 1 is a magnet, wherein the shaft 1 is a magnet.
[0013]
The sliding device according to any one of claims 1 to 3, wherein the coil 7 is provided on a surface of the shaft fitting portion 4.
[0014]
Further, in the sliding device according to any one of claims 1 to 4, the housing 3 has a U-shaped cross-sectional configuration in which side members 3b and 3c are provided on both sides of a bottom member 3a. Reference numeral 2 relates to a sliding device characterized in that it is configured to be located between the side members 3b and 3c.
[0015]
Further, in the sliding device according to any one of claims 1 to 5, a load path 5 is provided between the housing 3 and the sliding body 2 as a sliding mechanism, and the sliding body 2 has an unloaded path 6. And a return path that connects the no-load path 6 and the load path 5. Further, a rolling element 9 is disposed in an infinite circulation section including the load path 5, the no-load path 6, and the return path. A sliding mechanism is provided, wherein the rolling element 9 is configured to roll on the endless circulating portion when the sliding element 2 slides with respect to the housing 3. The present invention relates to a sliding device.
[0016]
Function and effect of the present invention
Since the linear motor mechanism including the magnet and the coil 7 and the sliding mechanism are integrally provided by providing the sliding body 2 collectively, the number of components constituting the sliding device can be reduced, and the configuration is further simplified. Compact and excellent in strength.
[0017]
Therefore, the present invention provides a sliding device that has a simple structure, is inexpensive, is compact, and has excellent strength.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
2 and 3 show one embodiment of the present invention, which will be described below.
[0019]
This embodiment comprises a sliding body 2 having a shaft fitting portion 4 and a shaft 1 which is inserted into the shaft fitting portion 4 of the sliding body 2 and is provided on a housing 3. Is a sliding device provided with a sliding mechanism for sliding the sliding body 2 with respect to the housing 3.
[0020]
In the sliding mechanism, a load path 5 is provided between the housing 3 and the slide body 2, and the slide body 2 includes a no-load path 6 and a return path connecting the no-load path 6 and the load path 5. Further, a rolling element 9 is disposed in an endless circulating portion composed of a load path 5, a no-load path 6, and a return path, and when the sliding body 2 slides with respect to the housing 3, This is a sliding mechanism configured so that the rolling element 9 rolls and moves in the endless circulation portion.
[0021]
The driving means of the sliding body 2 is a known linear motor mechanism. Specifically, the shaft 1 is formed of a magnet, and the surface of the shaft fitting portion 4 (shaft hole) of the sliding body 2 (shaft hole) is formed. A cylindrical coil 7 is provided on the (surrounding surface), and the sliding body 2 is configured to slide linearly with respect to the shaft 1 by electromagnetic induction by the shaft 1 as a magnet and the coil 7 of the sliding body 2. ing.
[0022]
Specifically, the endless circulating portion includes loads formed by upper and lower two-stage load grooves and load grooves 5 ′ formed respectively on the side surface of the slide body 2 and the inner surfaces of the side members 3 b and 3 c of the housing 3. A path 5, a no-load path 6 formed by a perforated hole formed in the inner surface of the sliding body 2, and a connection between the load path 5 and the no-load path 6 by a semi-arc return path. ing.
[0023]
In the present embodiment, as shown in FIG. 3, the infinite circulation portion is formed at two places on one side surface of the sliding body 2 at a total of four places. The infinite circulation portion may be formed in any manner, and may be formed on one side surface of the sliding member 2 one by one, or may be formed in a larger number.
[0024]
Each part will be specifically described.
[0025]
As the shaft 1, a shaft 1 formed of a permanent magnet is employed.
[0026]
Instead of using the entire shaft 1 as a magnet, if a sufficient thrust can be obtained by an electromagnetic induction action with the coil 7, a magnet partially provided may be used.
[0027]
The sliding member 2 is made of a metal having a substantially rectangular shape in cross section. This sliding body 2 may be entirely made of the same metal, or, for example, only the portion where the load groove forming the load path 5 is formed is made of stainless steel having excellent strength, and the other portions are made of stainless steel. It may be made of lightweight aluminum.
[0028]
A shaft hole that penetrates the shaft 1 is formed substantially in the center of the sliding body 2, and the shaft hole is set in the shaft fitting portion 4.
[0029]
A cylindrical coil 7 is provided on the surface (peripheral surface) of the shaft hole. In addition, you may arrange | position the cylindrical body which provided the coil 7 in one part.
[0030]
The diameter of the shaft hole is set to be slightly larger than the diameter of the shaft 1 when the coil 7 is arranged on the surface of the shaft hole. That is, a small gap is formed so that the shaft 1 and the coil 7 do not come into contact with each other when the shaft 1 is inserted through the shaft hole.
[0031]
Further, in this embodiment, the shaft hole is formed as the shaft fitting portion 4, but the shaft fitting portion 4 may have another configuration such as a groove shape having an open upper portion.
[0032]
The housing 3 is made of a metal having a U-shaped cross section. More specifically, side members 3b and 3c are provided on both sides of the bottom member 3a, and the sliding member 2 is disposed in a substantially fitted state in a concave portion between the side members 3b and 3c. Have been. The rigidity of the housing 3 is improved by forming a U-shape in cross section in this manner.
[0033]
Further, the bottom member 3a of the housing 3 and the bottom surface of the sliding body 2 are configured so as not to contact with each other. That is, the sliding movement of the sliding body 2 is not hindered, and a good sliding movement can be achieved.
[0034]
In the present embodiment, the shaft 1 is a magnet and the shaft 7 is provided with the coil 7 on the shaft fitting portion 4. On the contrary, the coil 1 is provided on the shaft 1 and the magnet is provided on the shaft fitting portion 4. It is good also as a configuration.
[0035]
As described above, the present embodiment has a structure in which the linear motor mechanism including the magnet and the coil 7 and the sliding mechanism are integrally provided by providing the sliding body 2 collectively. Can be reduced, the configuration can be simplified, and a compact and excellent strength can be achieved.
[0036]
In addition, since a plurality of infinite circulation portions (load paths 5) are provided on one side surface of the sliding body 2, the sliding body 2 can be slidably moved.
[0037]
In addition, since the shaft 1 and the coil 7 constituting the linear motor mechanism are not in contact with each other, the contact portion is not worn or the lubricating oil is scattered as in the related art.
[0038]
Therefore, the present embodiment is a sliding device which has a simple structure, is inexpensive, is compact and has excellent strength, and is excellent in practicality.
[Brief description of the drawings]
FIG. 1 is a schematic explanatory sectional view of a conventional example.
FIG. 2 is a schematic explanatory perspective view of the present embodiment.
FIG. 3 is a schematic explanatory sectional view of the present embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Shaft 2 Sliding body 3 Housing 3a Bottom member 3b, 3c Side member 4 Shaft fitting part 5 Load path 6 No load path 7 Coil 9 Rolling element

Claims (6)

軸嵌合部が形成された摺動体と、該摺動体の前記軸嵌合部に貫挿されハウジングに設けられる軸とから成り、摺動体とハウジングとには該摺動体をハウジングに対して摺動させる摺動機構が設けられた摺動装置であって、軸及び軸嵌合部のうち、いずれか一方には磁石が、また、他方にはコイルが設けられ、該磁石とコイルとによる電磁誘導により摺動体が軸に対して直線摺動するように構成されていることを特徴とする摺動装置。A sliding body having a shaft fitting portion formed therein, and a shaft inserted through the shaft fitting portion of the sliding body and provided in the housing. A sliding device provided with a sliding mechanism for moving, wherein one of a shaft and a shaft fitting portion is provided with a magnet and the other is provided with a coil, and the electromagnetic force generated by the magnet and the coil is provided. A sliding device, wherein a sliding body is configured to slide linearly with respect to an axis by induction. 請求項１記載の摺動装置において、軸に磁石が設けられ、軸嵌合部にコイルが設けられていることを特徴とする摺動装置。The sliding device according to claim 1, wherein a magnet is provided on the shaft, and a coil is provided on the shaft fitting portion. 請求項１，２いずれか１項に記載の摺動装置において、軸が磁石であることを特徴とする摺動装置。The sliding device according to claim 1, wherein the shaft is a magnet. 請求項１〜３いずれか１項に記載の摺動装置において、軸嵌合部の表面にコイルが設けられていることを特徴とする摺動装置。The sliding device according to any one of claims 1 to 3, wherein a coil is provided on a surface of the shaft fitting portion. 請求項１〜４いずれか１項に記載の摺動装置において、ハウジングは、底部材の両側に側部材が設けられた断面視Ｕ字状の構成であり、摺動体はこの側部材間に位置するように構成されていることを特徴とする摺動装置。The sliding device according to any one of claims 1 to 4, wherein the housing has a U-shaped configuration in a sectional view in which side members are provided on both sides of a bottom member, and the sliding member is located between the side members. A sliding device characterized in that the sliding device is configured to: 請求項１〜５いずれか１項に記載の摺動装置において、摺動機構として、ハウジングと摺動体との間に負荷路が設けられ、摺動体には無負荷路と、該無負荷路と前記負荷路を連通するリターン路とが設けられ、更に、負荷路と無負荷路とリターン路とで構成される無限循環部には転動体が配設され、摺動体がハウジングに対して摺動移動する際、前記転動体が該無限循環部を転動移動するように構成されている摺動機構が採用されていることを特徴とする摺動装置。The sliding device according to any one of claims 1 to 5, wherein a load path is provided between the housing and the sliding body as a sliding mechanism. A return path communicating with the load path is provided. Further, a rolling element is disposed in an endless circulating portion composed of a load path, an unloaded path, and a return path, and the sliding body slides on the housing. A sliding device, comprising: a sliding mechanism configured so that the rolling element rolls on the endless circulating portion when moving.
JP2003109824A 2003-04-15 2003-04-15 Sliding device Pending JP2004320871A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005185077A (en) * 2003-12-24 2005-07-07 Seiko Instruments Inc Actuator, stage apparatus and shaft processing apparatus
WO2006106697A1 (en) * 2005-03-30 2006-10-12 Thk Co., Ltd. Linear motor actuator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005185077A (en) * 2003-12-24 2005-07-07 Seiko Instruments Inc Actuator, stage apparatus and shaft processing apparatus
WO2006106697A1 (en) * 2005-03-30 2006-10-12 Thk Co., Ltd. Linear motor actuator

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