JPS6361109U

JPS6361109U -

Info

Publication number: JPS6361109U
Application number: JP15557586U
Authority: JP
Priority date: 1986-10-09
Filing date: 1986-10-09
Publication date: 1988-04-22

Description

[Brief explanation of drawings]

第１図は本考案の脱磁装置の一実施例を示す縦
断面図、第２図は第１図の２−２線に沿つて得た
断面図、第３図は本考案の脱磁装置の他の実施例
を示す縦断面図、第４図は第３図の４−４線に沿
つて得た断面である。１０，６０：脱磁装置、１２，６２：脱磁器、
１４，６４：保持器、１８：電磁石、３６：作用
空間、４６：磁気的吸着面、１４ａ，１４ｂ，６
４ａ，６４ｂ：磁石機構、４０：磁気回路ブロツ
ク、４２：永久磁石、４４：ノブ、６６：磁極片
、７０，７２：永久磁石。 Fig. 1 is a longitudinal sectional view showing an embodiment of the demagnetizing device of the present invention, Fig. 2 is a sectional view taken along line 2-2 in Fig. 1, and Fig. 3 is a demagnetizing device of the present invention. FIG. 4 is a longitudinal sectional view showing another embodiment of the present invention, and is a cross section taken along line 4--4 in FIG. 10, 60: demagnetizer, 12, 62: demagnetizer,
14, 64: Holder, 18: Electromagnet, 36: Working space, 46: Magnetic attraction surface, 14a, 14b, 6
4a, 64b: magnet mechanism, 40: magnetic circuit block, 42: permanent magnet, 44: knob, 66: magnetic pole piece, 70, 72: permanent magnet.

Claims

[Claims for Utility Model Registration] (1) Demagnetizing means that defines a working space for demagnetization and generates an alternating magnetic field for demagnetizing in the working space, and a holding means attached at a separated location and having a magnetic adsorption surface for removably attaching the demagnetizing means to a magnetic body. (2) The demagnetizing device according to claim 1, wherein the holding means has a mechanism for selectively switching the magnetic attraction surface between an energized state and a de-energized state. (3) The holding means includes a magnetic circuit block having an inner cavity with a circular cross-sectional shape, a rod-shaped permanent magnet arranged in the inner cavity so as to be rotatable around the axis of the inner cavity, and the permanent magnet. The demagnetizing device according to claim 1, comprising at least one magnet mechanism having a knob for rotating the magnet around the axis of the inner cavity. (4) The holding means includes a plurality of magnetic pole pieces arranged in parallel to each other, and a first permanent magnet fixedly arranged between the magnetic pole pieces and magnetized in the arrangement direction of the magnetic pole pieces. Claim 1 of the Utility Model Registration Claim, comprising at least one magnet mechanism having a second permanent magnet arranged removably between the magnetic pole pieces and magnetized in the arrangement direction of the magnetic pole pieces. Demagnetizing device. (5) The demagnetizing device according to claim 1, wherein the demagnetizing means includes an air-core AC electromagnet. (6) The demagnetizing device according to claim 1, wherein the demagnetizing means includes a cylindrical iron core and a coil wound around the iron core.