JPS61109653U - - Google Patents

Info

Publication number
JPS61109653U
JPS61109653U JP19370484U JP19370484U JPS61109653U JP S61109653 U JPS61109653 U JP S61109653U JP 19370484 U JP19370484 U JP 19370484U JP 19370484 U JP19370484 U JP 19370484U JP S61109653 U JPS61109653 U JP S61109653U
Authority
JP
Japan
Prior art keywords
magnet
magnetic pole
polarity
pole plate
permanent magnet
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
JP19370484U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP19370484U priority Critical patent/JPS61109653U/ja
Publication of JPS61109653U publication Critical patent/JPS61109653U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Jigs For Machine Tools (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例の縦断面図、第２図
はその一部破断平面図である。 １……磁極板、２……底板、３……分極板、５
ａ……極性固定磁石、６……コイル、７……空間
部。 FIG. 1 is a longitudinal sectional view of an embodiment of the present invention, and FIG. 2 is a partially cutaway plan view thereof. 1...Magnetic pole plate, 2...Bottom plate, 3...Polarization plate, 5
a... Fixed polarity magnet, 6... Coil, 7... Space part.

Claims (1)

【実用新案登録請求の範囲】 １ 上面に無端の分極板を同心状に複数埋設し、
該上面に同心状で無端の磁極片が複数現れるよう
にした磁極板と、 この磁極板との間に所定の空間部を形成するよ
うに、該磁極板の下部に取り付けられた磁性材か
らなる底板と、 保磁力の大きな永久磁石からなり磁極面が前記
底板および磁極板に接する極性固定磁石、および
保磁力の小さな永久磁石からなり磁極面が該底板
および磁極板に接する極性変換磁石を交互に連接
してなり、前記無端の磁極片に対応する無端形状
に形成されて前記空間部内に配設された磁石要素
と、 この磁石要素に巻回され、オン時には前記極性
変換磁石の磁化の方向を前記極性固定磁石と同方
向に変換して、隣接する磁石要素との間に磁気回
路を形成させ、オフ時には前記極性変換磁石の磁
化の方向を前記極性固定磁石と逆方向に変換して
、隣接するこれら極性変換磁石および極性固定磁
石の間に磁気回路を形成させるコイルとを備える
永久磁石チヤツク。 ２ 前記磁極板の平面形状は円盤形であり、前記
磁石要素は同心円状に配設されている実用新案登
録請求の範囲第１項記載の永久磁石チヤツク。 ３ 極性固定磁石はフエライト系磁石である実用
新案登録請求の範囲第１項もしくは第２項記載の
永久磁石チヤツク。 ４ 極性変換磁石はアルニコ系磁石である実用新
案登録請求の範囲第１項乃至第３項のいずれかに
記載の永久磁石チヤツク。[Claims for Utility Model Registration] 1. A plurality of endless polarization plates concentrically embedded in the upper surface,
A magnetic pole plate having a plurality of concentric and endless magnetic pole pieces appearing on its upper surface, and a magnetic material attached to the lower part of the magnetic pole plate so as to form a predetermined space between the magnetic pole plate. A bottom plate, a fixed polarity magnet made of a permanent magnet with a large coercive force and whose magnetic pole face touches the bottom plate and the magnetic pole plate, and a polarity changing magnet made of a permanent magnet with a small coercive force and whose magnetic pole face touches the bottom plate and the magnetic pole plate are alternately arranged. a magnet element which is connected to each other, has an endless shape corresponding to the endless magnetic pole piece, and is disposed within the space; The direction of magnetization of the polarity changing magnet is changed to the same direction as the fixed polarity magnet to form a magnetic circuit between adjacent magnet elements, and when off, the direction of magnetization of the polarity changing magnet is changed to the opposite direction of the fixed polarity magnet to form a magnetic circuit between adjacent magnet elements. A permanent magnet chuck comprising a polarity changing magnet and a coil forming a magnetic circuit between the polarity fixed magnet. 2. The permanent magnet chuck according to claim 1, wherein the magnetic pole plate has a disk shape in plan, and the magnet elements are arranged concentrically. 3. The permanent magnet chuck according to claim 1 or 2, wherein the fixed polarity magnet is a ferrite magnet. 4. The permanent magnet chuck according to any one of claims 1 to 3, wherein the polarity changing magnet is an alnico magnet.
JP19370484U 1984-12-21 1984-12-21 Pending JPS61109653U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19370484U JPS61109653U (en) 1984-12-21 1984-12-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19370484U JPS61109653U (en) 1984-12-21 1984-12-21

Publications (1)

Publication Number Publication Date
JPS61109653U true JPS61109653U (en) 1986-07-11

Family

ID=30751128

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19370484U Pending JPS61109653U (en) 1984-12-21 1984-12-21

Country Status (1)

Country Link
JP (1) JPS61109653U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017144525A (en) * 2016-02-18 2017-08-24 株式会社ナベヤ Magnetic attraction device
WO2021206074A1 (en) * 2020-04-10 2021-10-14 下西技研工業株式会社 Permanent electromagnetic holder and conveyance device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59146725A (en) * 1983-02-14 1984-08-22 Fuji Jikou Kk Permanent magnet chuck

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59146725A (en) * 1983-02-14 1984-08-22 Fuji Jikou Kk Permanent magnet chuck

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017144525A (en) * 2016-02-18 2017-08-24 株式会社ナベヤ Magnetic attraction device
WO2021206074A1 (en) * 2020-04-10 2021-10-14 下西技研工業株式会社 Permanent electromagnetic holder and conveyance device

Similar Documents

Publication Publication Date Title
JPS61109653U (en)
JPH0329079Y2 (en)
JPS61109654U (en)
JPS6127205U (en) permanent magnet chuck
JPH0229682Y2 (en)
JPS60191231U (en) movable bookshelf
JPS6127134Y2 (en)
JPS5978033U (en) Switchable permanent magnetic chuck
JPS6168749U (en)
JPS5884831U (en) electromagnetic chuck
JPS6161137U (en)
JPS6223405U (en)
JPS60183915U (en) Magnetic field orientation device
JPH01135488U (en)
JPS59128361U (en) magnetic adsorption device
JPS6078282U (en) surface plate
JPS61144929U (en)
JPS63189538U (en)
JPH0162280U (en)
JPS6017778U (en) Go practice machine
JPS616962U (en) floppy disk device
JPS61166506U (en)
JPS6155312U (en)
JPS5627362A (en) Wire dot type printing head
JPS5971975U (en) Non-contact ignition signal generator