JP2937883B2 - Long magnetic screw - Google Patents
Long magnetic screwInfo
- Publication number
- JP2937883B2 JP2937883B2 JP23619496A JP23619496A JP2937883B2 JP 2937883 B2 JP2937883 B2 JP 2937883B2 JP 23619496 A JP23619496 A JP 23619496A JP 23619496 A JP23619496 A JP 23619496A JP 2937883 B2 JP2937883 B2 JP 2937883B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic screw
- male
- screw
- long
- magnetic
- 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
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- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、自動ドアやＯＡ機
器等に使用される雄磁気ネジが長尺に形成された長尺磁
気ネジに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a long magnetic screw having a long male magnetic screw used for automatic doors, office automation equipment, and the like.
【０００２】[0002]
【従来の技術】磁気ネジは、雄磁気ネジと雌磁気ネジと
の間の磁極による磁力作用によって駆動伝達が行われ
る。そのため、摩耗による環境汚染や騒音など従来から
使用されているネジ部が直接接触するために生じる送り
ネジの問題を回避することが可能であり、近年ＯＡ機器
等での実施が期待されている。ところで、磁気ネジは、
雄磁気ネジと雌磁気ネジの磁力による吸引力を利用して
いるため、両者が常に同心状に配置し接触しないよう全
周にわたって隙間を確保する必要がある。局部的にしろ
両者が接触していると、接触部分の磁気力が弱くなった
り、雄磁気ネジの回転が雌磁気ネジに伝達されない状態
が起こり得るためである。しかし、所定の隙間を確保す
るため、特に機器の小型化が進んでいる現状では磁気ネ
ジ自体も小型化され隙間も微少となったため、磁気ネジ
の製造には非常に高い加工精度が要求され、コストアッ
プ等の弊害が生じている。2. Description of the Related Art A magnetic screw is driven and transmitted by a magnetic force generated by magnetic poles between a male magnetic screw and a female magnetic screw. For this reason, it is possible to avoid the problem of the feed screw, which is caused by the direct contact of the conventionally used screw portion, such as environmental pollution and noise due to wear, and is expected to be implemented in OA equipment and the like in recent years. By the way, the magnetic screw
Since the magnetic attraction force of the male magnetic screw and the female magnetic screw is used, it is necessary to always arrange them concentrically and to secure a gap over the entire circumference so that they do not come into contact with each other. This is because if the two are in contact with each other locally, the magnetic force at the contact portion may be weakened, or the rotation of the male magnetic screw may not be transmitted to the female magnetic screw. However, in order to secure a predetermined gap, especially in the current situation where the size of the device has been reduced, the magnetic screw itself has been reduced in size and the gap has become very small, so that extremely high processing accuracy is required for the manufacture of the magnetic screw, There are problems such as an increase in cost.
【０００３】かかる問題点を解消すべく特開平７−２８
００６１号公報に簡単な構造で雄磁気ネジと雌時期ネジ
との両者を微少間隔に保持できるよう、雄磁気ネジを有
する軸を雌磁気ネジを有する筒体に対して略同心状に保
持し、摺動自在に案内するガイドリングを筒体の両側に
設けた磁気ネジが開示されている。以下、当該公報の磁
気ネジについて具体的に説明する。図３は、磁気ネジを
示した一部切欠正面図であり、図４は、その一部拡大断
面図である。To solve such a problem, Japanese Patent Application Laid-Open No. 7-28
No. 0061, a shaft having a male magnetic screw is held substantially concentrically with respect to a cylinder having a female magnetic screw so that both the male magnetic screw and the female timing screw can be held at minute intervals with a simple structure, A magnetic screw in which guide rings for slidably guiding are provided on both sides of a cylindrical body is disclosed. Hereinafter, the magnetic screw of the publication will be specifically described. FIG. 3 is a partially cutaway front view showing the magnetic screw, and FIG. 4 is a partially enlarged sectional view thereof.
【０００４】当該公報の磁気ネジは、筒体５１の左右両
側にガイドリング５２，５３がネジ等で脱着自在に装着
され、その筒体５１に磁性体による雌ネジ構造が形成さ
れるとともに、丸棒状の平滑な軸５４表面にＮ極５５と
Ｓ極５６の各磁極が着磁されて雄磁気ネジが形成された
ものである。具体的には、雄磁気ネジには、軸５４表面
に貼着された磁石材料にＮ極５５とＳ極５６との螺旋帯
状が着磁され、両側にガイドリング５２，５３が装着さ
れた筒体５１には、その内周に例えば図４に示すような
ネジ山６１とネジ溝６２が形成されている。ネジ山６１
は、各磁極５５，５６と同一リード角、同一ピッチであ
る。このような構成の磁気ネジは、軸５４のＳ極５６の
磁力が筒体５１のネジ山６１に作用し、軸５４が軸方向
に拘束された状態となるため、軸５４の回転運動を筒体
５１の直線運動に変換することができる。In the magnetic screw disclosed in this publication, guide rings 52 and 53 are detachably mounted on the left and right sides of a cylindrical body 51 with screws or the like, and a female screw structure is formed on the cylindrical body 51 by a magnetic material. The magnetic poles of the N pole 55 and the S pole 56 are magnetized on the surface of the rod-shaped smooth shaft 54 to form a male magnetic screw. Specifically, the male magnetic screw is formed by magnetizing a spiral band of the N pole 55 and the S pole 56 on a magnet material attached to the surface of the shaft 54, and having a guide ring 52, 53 attached to both sides. The body 51 has a thread 61 and a thread groove 62 as shown in FIG. Thread 61
Has the same lead angle and the same pitch as the magnetic poles 55 and 56. In the magnetic screw having such a configuration, the magnetic force of the S pole 56 of the shaft 54 acts on the thread 61 of the cylindrical body 51, and the shaft 54 is constrained in the axial direction. This can be converted into a linear motion of the body 51.
【０００５】[0005]
【発明が解決しようとする課題】しかし、このような従
来の磁気ネジでは、筒体５１の両側にガイドリング５
２，５３を設けたことによって、ネジ山６１の形成され
た筒体５１の内周面と各磁極５５，５６が着磁された軸
５４の外周面との非接触状態が保たれるが、軸を長尺に
したいわゆる長尺磁気ネジに対応させてみた場合には次
の問題があった。即ち、軸５４の外周表面に貼着し、Ｎ
極５５及びＳ極５６の螺旋状の着磁帯を形成する磁石材
料は、現在では３００ｍｍ程度の長さまでで長尺なもの
しかできないのが実状である。従って、長尺な磁気ネジ
を作成しようとすると短尺な磁石材料を軸５４表面に継
ぎ足して作成する必要があるため、棒材に磁石材料を取
り付ける場合に棒材と磁石材料のクリアランス分の偏心
がおこり、その連結部に凹凸が生じることとなる。この
ような凹凸部分をガイドリングを摺動させることはスム
ーズな運動を不可能とするため非現実的である一方、凹
凸をなくした精度の高い加工を行うことはコストアップ
につながるため賢明な方法ではない。However, in such a conventional magnetic screw, the guide ring 5 is provided on both sides of the cylindrical body 51.
By providing the two and 53, the non-contact state between the inner peripheral surface of the cylindrical body 51 in which the thread 61 is formed and the outer peripheral surface of the shaft 54 on which the magnetic poles 55 and 56 are magnetized is maintained. The following problems have been encountered when trying to use a so-called long magnetic screw having a long shaft. That is, it is adhered to the outer peripheral surface of the shaft 54, and N
At present, the magnet material that forms the helical magnetized band of the pole 55 and the S pole 56 can only be as long as about 300 mm in length. Therefore, in order to create a long magnetic screw, it is necessary to add a short magnet material to the surface of the shaft 54, so that when attaching the magnet material to the bar, the eccentricity of the clearance between the bar and the magnet material is reduced. As a result, irregularities are generated at the connection portion. It is impractical to slide the guide ring on such an uneven part because it makes smooth movement impossible, while performing high-precision processing without unevenness leads to an increase in cost. is not.
【０００６】そこで、本発明は、長尺な磁気ネジにおい
ける上記問題を解決すべく、安価な長尺磁気ネジを提供
することを目的とする。Therefore, an object of the present invention is to provide an inexpensive long magnetic screw in order to solve the above-mentioned problem in a long magnetic screw.
【０００７】[0007]
【課題を解決するための手段】本発明の長尺磁気ネジ
は、回転可能に保持された長尺な回転軸の外周面に連設
された複数の円筒磁石に対しＳ極とＮ極とが交互に螺旋
帯状に着磁された雄磁気ネジと、ホルダの貫通孔内周面
に設けられた円筒磁石に対しＳ極とＮ極とが交互に螺旋
帯状に着磁された雌磁気ネジとを有し、その雄磁気ネジ
と雌磁気ネジとが非接触状態となるよう所定間隔の隙間
を設けて構成されたものであって、前記雄磁気ネジの外
周に装着された非磁性体からなるパイプと、前記雌磁気
ネジの両端部に、前記雌磁気ネジと前記雄磁気ネジとの
間に所定間隔の隙間をあける前記パイプと摺接するガイ
ドリングが取り付けられたものであることを特徴とす
る。The long magnetic screw of the present invention has an S pole and an N pole with respect to a plurality of cylindrical magnets connected to the outer peripheral surface of a long rotating shaft rotatably held. A male magnetic screw that is alternately magnetized in a spiral band shape, and a female magnetic screw in which S and N poles are alternately magnetized in a spiral band shape with respect to a cylindrical magnet provided on the inner peripheral surface of the through hole of the holder. A pipe made of a non-magnetic material attached to the outer circumference of the male magnetic screw, wherein the male magnetic screw and the female magnetic screw are provided with a predetermined gap so as to be in a non-contact state. And a guide ring that is in sliding contact with the pipe that has a predetermined gap between the female magnetic screw and the male magnetic screw is attached to both ends of the female magnetic screw.
【０００８】また、本発明の長尺磁気ネジは、前記ガイ
ドリングが、テフロン系の樹脂によって形成されたもの
であることが望ましい。また、本発明の長尺磁気ネジ
は、前記雄磁気ネジが形成された回転軸と前記パイプと
の間であって、前記回転軸に回転出力を与える駆動シャ
フトに対して前記パイプを同心状に装着するための心出
しカラーを雄磁気ネジ両端に設けたものであることが望
ましい。Further, in the long magnetic screw of the present invention, it is preferable that the guide ring is formed of a Teflon-based resin. Further, the long magnetic screw of the present invention is arranged between the rotary shaft on which the male magnetic screw is formed and the pipe, and concentrically aligns the pipe with a drive shaft that provides a rotational output to the rotary shaft. It is desirable that the centering collar for mounting is provided at both ends of the male magnetic screw.
【０００９】このような構成による本発明の長尺磁気ネ
ジは、雄磁気ネジに対して回転力が伝達されると、雄磁
気ネジと雌磁気ネジとの間で作用する磁力によって吸引
力が働き、雄磁気ネジの回転運動が雌磁気ネジの直進運
動に変換されることとなるが、その際雌磁気ネジの両端
部のガイドリングが雄磁気ネジの外周に装着された非磁
性体パイプに対し摺動するめ、雄磁気ネジ表面に生じる
凹凸を非磁性体パイプが吸収し、雄磁気ネジと雌磁気ネ
ジとの非接触状態を保ち、表面形状に影響されることな
いスムーズな運動が可能な長尺磁気ネジを安価に提供す
る。In the long magnetic screw of the present invention having such a structure, when a rotational force is transmitted to the male magnetic screw, an attractive force is exerted by the magnetic force acting between the male magnetic screw and the female magnetic screw. However, the rotational movement of the male magnetic screw is converted to the linear movement of the female magnetic screw. At this time, the guide rings at both ends of the female magnetic screw are attached to the non-magnetic pipe attached to the outer periphery of the male magnetic screw. The non-magnetic pipe absorbs the irregularities generated on the surface of the male magnetic screw when it slides, keeping the male magnetic screw and female magnetic screw in non-contact state, allowing smooth movement without being affected by the surface shape. Providing low cost magnetic screws.
【００１０】[0010]
【発明の実施の形態】以下、本発明の長尺磁気ネジの一
実施の形態を図面に基づいて詳細に説明する。図１は、
本実施の形態の長尺磁気ネジを一部切り欠いた側部断面
図であり、図２は長尺磁気ネジの端部を示した拡大断面
図である。本実施の形態の長尺磁気ネジ１は、水平に配
設されたロッド２の外周面に形成された雄磁気ネジ３
と、このような雄磁気ネジ３からなる駆動軸に対してス
ライド可能に設けられたスライドホルダ４の貫通孔４ａ
内周面に形成された雌磁気ネジ５とから構成されてい
る。ロッド２は、その両端部が駆動用シャフト６，６に
よって軸支され、回転可能なようその駆動用シャフト
６，６にネジ止めされている。ロッド２には、強磁性材
料（例えば鉄、酸化鉄、ニッケル、コバルト若しくはこ
れらを主成分とする合金その他の化合物等）が使用され
る。これは、磁力線の発生密度を増加させるためであ
る。そして、このロッド２の外周面に複数の円筒磁石３
ａ…が軸方向に連接され、その複数の円筒磁石３ａ…間
を連続する帯状のＮ極着磁帯３N とＳ極着磁帯３S とが
着磁され雄磁気ネジ３が形成される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a long magnetic screw of the present invention will be described below in detail with reference to the drawings. FIG.
FIG. 2 is a side sectional view of the long magnetic screw of the present embodiment with a part cut away, and FIG. 2 is an enlarged sectional view showing an end of the long magnetic screw. The long magnetic screw 1 of the present embodiment is a male magnetic screw 3 formed on the outer peripheral surface of a rod 2 disposed horizontally.
And a through hole 4a of a slide holder 4 provided slidably with respect to a drive shaft including the male magnetic screw 3.
And a female magnetic screw 5 formed on the inner peripheral surface. The rod 2 is supported at both ends by drive shafts 6 and 6 and is screwed to the drive shafts 6 and 6 so as to be rotatable. The rod 2 is made of a ferromagnetic material (for example, iron, iron oxide, nickel, cobalt or an alloy or other compound containing these as a main component). This is to increase the density of lines of magnetic force. A plurality of cylindrical magnets 3 are provided on the outer peripheral surface of the rod 2.
a are connected in the axial direction, and a belt-shaped N-pole magnetized band 3N and an S-pole magnetized band 3S continuous between the plurality of cylindrical magnets 3a are magnetized to form the male magnetic screw 3.
【００１１】一方、スライドホルダ４には、ブロックに
貫通孔４ａが形成され、その内周面に複数の円筒磁石５
ａ…が軸方向に連設され、雄磁気ネジ３と同様に円筒磁
石５ａ…間を連続する帯状のＮ極着磁帯５N とＳ極着磁
帯５S とが交互に着磁されて雌磁気ネジ５が形成されて
いる。そして、スライドホルダ４は、ロッド２と平行な
回り止め用の不図示の案内軸に貫通され、回転すること
なく、常に水平な状態を維持しながら移動することとな
る。雄磁気ネジ３及び雌磁気ネジ５の極着磁帯３N ，３
S ，５N ，５S は、同一の傾斜角度及びリードピッチで
平行螺旋状に着磁されている。On the other hand, a through hole 4a is formed in the block of the slide holder 4, and a plurality of cylindrical magnets 5 are formed on the inner peripheral surface thereof.
are continuously arranged in the axial direction, and like the male magnetic screw 3, the N-shaped magnetized bands 5N and S-shaped magnetized bands 5S, which are continuous between the cylindrical magnets 5a, are alternately magnetized to form a female magnet. A screw 5 is formed. The slide holder 4 is penetrated by a non-illustrated guide shaft parallel to the rod 2 for non-rotation, and moves while always maintaining a horizontal state without rotating. Polar magnetized bands 3N, 3 of the male magnetic screw 3 and the female magnetic screw 5
S, 5N, and 5S are magnetized in a parallel spiral manner at the same inclination angle and lead pitch.
【００１２】そして、雄磁気ネジ３が構成された駆動軸
が雌磁気ネジ５の構成されたスライドホルダ４を貫いて
配設された際、雄磁気ネジ３と雌磁気ネジ５とが互いに
接触しないよう、両者の間には微少な隙間ａが設けられ
ている。しかし、本実施の形態の長尺磁気ネジ１は、前
述したように円筒磁石３ａを連接して軸方向の寸法の長
い雄磁気ネジ３を構成しているため、ロッド２にたわみ
が生じてしまい局部的に雌磁気ネジ５が雄磁気ネジ３に
接触し得る。そのため、本実施の形態では、雄磁気ネジ
３を包むように一本の非磁性体のパイプ１１を覆装し、
常に隙間ａを一定に保つためにスライドホルダ４の両端
にパイプ１１を摺動するガイドリング１２，１２が固定
されている。この非磁性体のパイプ１１には、ステンレ
ス等で形成された０．１〜０．３ｍｍ程度の薄肉のパイ
プを使用し、ガイドリング１２には、摩擦係数の小さい
テフロン系の樹脂を使用するのが好ましい。When the drive shaft on which the male magnetic screw 3 is formed is arranged so as to pass through the slide holder 4 on which the female magnetic screw 5 is formed, the male magnetic screw 3 and the female magnetic screw 5 do not come into contact with each other. Thus, a small gap a is provided between the two. However, since the long magnetic screw 1 of this embodiment forms the male magnetic screw 3 having a long axial dimension by connecting the cylindrical magnets 3a as described above, the rod 2 is bent. The female magnetic screw 5 can contact the male magnetic screw 3 locally. Therefore, in the present embodiment, one non-magnetic pipe 11 is covered so as to enclose the male magnetic screw 3,
Guide rings 12, 12 that slide on the pipe 11 are fixed to both ends of the slide holder 4 in order to always keep the gap a constant. As the nonmagnetic pipe 11, a thin pipe of about 0.1 to 0.3 mm made of stainless steel or the like is used, and as the guide ring 12, a Teflon-based resin having a small friction coefficient is used. Is preferred.
【００１３】ところで、磁気ネジを形成する円筒磁石
は、一般に成形されるものであって内径及び外径のバラ
ツキが大きい。そのため、連設した円筒磁石３ａ…に対
しパイプ１１をそのまま装着したのでは、ロッド２と円
筒磁石３ａ…との間のクリアランス分の偏心が生じ、パ
イプ１１も駆動用シャフト６，６に対して偏心すること
になる。そうした場合、パイプ１１の偏心に対してもス
ライドホルダ４がスムーズに移動できるようにするに
は、ガイドリング１２とパイプ１１との距離を大きくと
る必要がある。その一方、磁石間の磁力作用によって移
動する磁気ネジでは、雄磁気ネジ３と雌磁気ネジ５との
距離をできるだけ小さくすることが好ましい。そこで、
本実施の形態の長尺磁気ネジ１では、パイプ１１の偏心
を防止するため、図２に示すように雄磁気ネジ３の両端
に心出しカラー１３，１３を設けた。By the way, the cylindrical magnet forming the magnetic screw is generally formed and has a large variation in the inner diameter and the outer diameter. Therefore, if the pipe 11 is directly attached to the continuously provided cylindrical magnets 3a, eccentricity corresponding to the clearance between the rod 2 and the cylindrical magnets 3a occurs, and the pipe 11 also moves with respect to the drive shafts 6, 6. You will be eccentric. In such a case, it is necessary to increase the distance between the guide ring 12 and the pipe 11 so that the slide holder 4 can move smoothly even with respect to the eccentricity of the pipe 11. On the other hand, in the case of a magnetic screw that moves by a magnetic force between magnets, it is preferable that the distance between the male magnetic screw 3 and the female magnetic screw 5 be as small as possible. Therefore,
In the long magnetic screw 1 of the present embodiment, centering collars 13 are provided at both ends of the male magnetic screw 3 as shown in FIG.
【００１４】このような構成による本実施の形態の長尺
磁気ネジ１は、ロッド２の回転によって雄磁気ネジ３が
回転すれば、雌磁気ネジ５の着磁帯５S ，５N が、同一
のピッチで形成された雄磁気ネジ３の着磁帯３N ，３S
との間に働く磁力作用によって吸引されるため、スライ
ドホルダ４が軸方向に移動することとなる。In the long magnetic screw 1 according to the present embodiment having such a configuration, when the male magnetic screw 3 is rotated by the rotation of the rod 2, the magnetized bands 5S and 5N of the female magnetic screw 5 have the same pitch. Magnetization zones 3N and 3S of the male magnetic screw 3 formed by
The slide holder 4 is moved in the axial direction because the magnetic force is attracted by the magnetic force acting between them.
【００１５】そこで、スライドホルダ４に固定されたガ
イドリング１２，１２がパイプ１１を摺動するため、ロ
ッド２のたわみ部分の通過に際しても、雌磁気ネジ４が
雄磁気ネジ３に接することなく隙間ａを一定に保つこと
ができる。また、雄磁気ネジ３を構成する円筒磁石の連
設部分の通過に際しても、パイプ１１がその部分に生じ
る凹凸を吸収するため、ガイドリング１２，１２が抵抗
を受けずにスムーズに摺動することがき、スライドホル
ダ４の安定した移動及び耐摩耗性の向上を図ることがで
きた。また、複数の円筒磁石を連設して形成する必要の
ある長尺磁気ネジであっても、その雄磁気ネジ３にパイ
プ１１を覆装するという簡易な構成によって、隙間ａを
保つガイドリング１２，１２のスムーズな摺動を可能と
し、そのような長尺磁気ネジを非常に安価に提供するこ
とが可能となった。更に、パイプ１１を設けたことによ
り、雄磁気ネジ３を構成する円筒磁石３ａ…の錆が防止
できた。また、心出しカラー１３，１３によってパイプ
１１の偏心を少なくすることができた。Therefore, since the guide rings 12, 12 fixed to the slide holder 4 slide on the pipe 11, the female magnetic screw 4 does not come into contact with the male magnetic screw 3 even when the rod 2 passes through the bent portion. a can be kept constant. Also, when the cylindrical magnet constituting the male magnetic screw 3 passes through the continuous portion, the pipe 11 absorbs the irregularities generated at that portion, so that the guide rings 12, 12 slide smoothly without receiving resistance. As a result, stable movement of the slide holder 4 and improvement of abrasion resistance were achieved. Further, even for a long magnetic screw which needs to be formed by connecting a plurality of cylindrical magnets, the guide ring 12 for maintaining the gap a can be easily formed by covering the male magnetic screw 3 with the pipe 11. , 12 can be smoothly slid, and such a long magnetic screw can be provided at very low cost. Further, the provision of the pipe 11 prevented the cylindrical magnets 3a of the male magnetic screw 3 from rusting. Further, the eccentricity of the pipe 11 could be reduced by the centering collars 13, 13.
【００１６】なお、本発明は、上記実施の形態に限定さ
れるわけではなく、その趣旨を逸脱しない範囲で様々な
変更が可能である。例えば、上記実施の形態では、単一
のスライドホルダ、即ち一組の磁気ネジについて説明し
たが、雄磁気ネジを構成する螺旋着磁帯をクロスした二
重着磁によって形成し、この一本の雄磁気ネジに対して
二つのホルダにそれぞれ形成した雌磁気ネジを有するも
のなど、より長尺な雄磁気ネジが要求されるような磁気
ネジにも使用できる。It should be noted that the present invention is not limited to the above embodiment, and various changes can be made without departing from the gist of the present invention. For example, in the above-described embodiment, a single slide holder, that is, a set of magnetic screws has been described. However, a spiral magnetized band forming a male magnetic screw is formed by crossed double magnetization, and this single screw is formed. It can also be used for magnetic screws that require longer male magnetic screws, such as those having female magnetic screws formed in two holders for male magnetic screws, respectively.
【００１７】[0017]
【発明の効果】本発明は、複数の円筒磁石に対しＳ極と
Ｎ極とが交互に螺旋帯状に着磁された雄磁気ネジの外周
に装着した非磁性体からなるパイプと、円筒磁石に対し
Ｓ極とＮ極とが交互に螺旋帯状に着磁された雌磁気ネジ
の両端部に、その雌磁気ネジと雄磁気ネジとの間に所定
間隔の隙間をあけるパイプと摺接するガイドリングを取
り付けたので、安価な長尺磁気ネジを提供することが可
能となった。The present invention provides a pipe made of a non-magnetic material attached to the outer periphery of a male magnetic screw in which S and N poles are alternately magnetized in a spiral band with respect to a plurality of cylindrical magnets, and a cylindrical magnet. On the other hand, at both ends of the female magnetic screw in which the S pole and the N pole are alternately magnetized in a helical band, a guide ring that is in sliding contact with a pipe that provides a predetermined gap between the female magnetic screw and the male magnetic screw is provided. Since it was attached, it became possible to provide an inexpensive long magnetic screw.
【図１】本発明にかかる長尺磁気ネジの一実施の形態の
一部切り欠いた側面図である。FIG. 1 is a partially cutaway side view of an embodiment of a long magnetic screw according to the present invention.
【図２】本発明にかかる長尺磁気ネジの一実施の形態の
端部を示した拡大断面図である。FIG. 2 is an enlarged sectional view showing an end of one embodiment of a long magnetic screw according to the present invention.
【図３】従来の磁気ネジを示した一部切欠正面図であ
る。FIG. 3 is a partially cutaway front view showing a conventional magnetic screw.
【図４】従来の磁気ネジを示した一部拡大断面図であ
る。FIG. 4 is a partially enlarged sectional view showing a conventional magnetic screw.
【符号の説明】 １ 磁気ネジ ２ ロッド ３ 雄磁気ネジ ３ａ，５ａ 円筒磁石 ４ スライドホルダ ５ 雌磁気ネジ ６ 駆動シャフト １１ パイプ １２ ガイドリング １３ 心出しカラー[Description of Signs] 1 Magnetic screw 2 Rod 3 Male magnetic screw 3a, 5a Cylindrical magnet 4 Slide holder 5 Female magnetic screw 6 Drive shaft 11 Pipe 12 Guide ring 13 Centering collar
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平７−280060（ＪＰ，Ａ) 特開 平６−201012（ＪＰ，Ａ) 特開 昭54−156959（ＪＰ，Ａ) 特開 昭63−52649（ＪＰ，Ａ) 実開 平６−56552（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) H02K 49/10 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-7-280060 (JP, A) JP-A-6-201012 (JP, A) JP-A-54-156959 (JP, A) JP-A-63-1988 52649 (JP, A) Japanese Utility Model Hei 6-56552 (JP, U) (58) Field surveyed (Int. Cl. 6 , DB name) H02K 49/10
Claims (3)
周面に連設された複数の円筒磁石に対しＳ極とＮ極とが
交互に螺旋帯状に着磁された雄磁気ネジと、ホルダの貫
通孔内周面に設けられた円筒磁石に対しＳ極とＮ極とが
交互に螺旋帯状に着磁された雌磁気ネジとを有し、その
雄磁気ネジと雌磁気ネジとが非接触状態となるよう所定
間隔の隙間を設けて構成された長尺磁気ネジにおいて、 前記雄磁気ネジの外周に装着された非磁性体からなるパ
イプと、 前記雌磁気ネジの両端部に、前記雌磁気ネジと前記雄磁
気ネジとの間に所定間隔の隙間をあける前記パイプと摺
接するガイドリングが取り付けられたものであることを
特徴とする長尺磁気ネジ。1. A male magnetic screw in which S and N poles are alternately magnetized in a helical band with respect to a plurality of cylindrical magnets continuously provided on the outer peripheral surface of a long rotating shaft held rotatably. A female magnetic screw in which S poles and N poles are alternately magnetized in a spiral band with respect to a cylindrical magnet provided on the inner peripheral surface of the through hole of the holder, and the male magnetic screw and the female magnetic screw In a long magnetic screw configured by providing a gap at a predetermined interval so as to be in a non-contact state, a pipe made of a non-magnetic material attached to an outer periphery of the male magnetic screw, and at both ends of the female magnetic screw, A long magnetic screw to which a guide ring which is in sliding contact with the pipe, which has a predetermined gap between the female magnetic screw and the male magnetic screw, is attached.
て、 前記ガイドリングが、テフロン系の樹脂によって形成さ
れたものであることを特徴とする長尺磁気ネジ。2. The long magnetic screw according to claim 1, wherein the guide ring is formed of a Teflon-based resin.
ネジにおいて、 前記雄磁気ネジが形成された回転軸と前記パイプとの間
であって、前記回転軸に回転出力を与える駆動シャフト
に対して前記パイプを同心状に装着するための心出しカ
ラーを雄磁気ネジ両端に設けたことを特徴とする長尺磁
気ネジ。3. The long magnetic screw according to claim 1, wherein a drive is provided between the rotary shaft on which the male magnetic screw is formed and the pipe, and providing a rotational output to the rotary shaft. A long magnetic screw, wherein centering collars for mounting the pipe concentrically on a shaft are provided at both ends of the male magnetic screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23619496A JP2937883B2 (en) | 1996-09-06 | 1996-09-06 | Long magnetic screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23619496A JP2937883B2 (en) | 1996-09-06 | 1996-09-06 | Long magnetic screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1080131A JPH1080131A (en) | 1998-03-24 |
| JP2937883B2 true JP2937883B2 (en) | 1999-08-23 |
Family
ID=16997178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23619496A Expired - Fee Related JP2937883B2 (en) | 1996-09-06 | 1996-09-06 | Long magnetic screw |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2937883B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017163420A1 (en) * | 2016-03-25 | 2017-09-28 | アズビル株式会社 | Conveyance device and storage device |
| WO2017163421A1 (en) * | 2016-03-25 | 2017-09-28 | アズビル株式会社 | Conveyance device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100814337B1 (en) | 2006-10-12 | 2008-03-18 | 한화테크엠주식회사 | Magnetic holder for conveyor |
| CN106341031B (en) * | 2016-09-13 | 2018-12-14 | 江苏大学 | A kind of magnetic-field modulation-type magnetic Screw |
-
1996
- 1996-09-06 JP JP23619496A patent/JP2937883B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017163420A1 (en) * | 2016-03-25 | 2017-09-28 | アズビル株式会社 | Conveyance device and storage device |
| WO2017163421A1 (en) * | 2016-03-25 | 2017-09-28 | アズビル株式会社 | Conveyance device |
| CN108883880A (en) * | 2016-03-25 | 2018-11-23 | 阿自倍尔株式会社 | conveying device |
| US10336560B2 (en) | 2016-03-25 | 2019-07-02 | Azbil Corporation | Transfer apparatus |
| EP3434629A4 (en) * | 2016-03-25 | 2019-11-13 | Azbil Corporation | Conveyance device |
| EP3434628A4 (en) * | 2016-03-25 | 2019-11-20 | Azbil Corporation | Conveyance device and storage device |
| US10625949B2 (en) | 2016-03-25 | 2020-04-21 | Azbil Corporation | Transfer apparatus and storage apparatus |
| CN108883880B (en) * | 2016-03-25 | 2021-02-09 | 阿自倍尔株式会社 | Conveying device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1080131A (en) | 1998-03-24 |
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