MAGNETIC ATTRACTION DEVICE

WIPO Patent Application WO/2023/162279

A1

The present disclosure addresses the problem of providing a magnetic attraction device with which it is possible to obtain, with a simple configuration, sufficient magnetic force even if the device is compact, and which has favorable rotational operability and is easy to use without magnetic flux leakage from the surface opposite to an attraction part.　To solve the problem, a permanent magnet rotor (5) is rotated at a center angle by a prescribed angle less than 90 degrees by a rotation operation of a handle part (6) to switch between: a first position at which a plurality of magnetic circuits (M1), (M2) that cause magnetic flux to leak to outside of separators (2c), (2d) from an attraction part (2e) of a device main body (2) are formed, and a base part (4) is attracted onto a magnetic member (8) facing the attraction part (2e); and a second position at which a plurality of magnetic closed circuits (M1'), (M2') separated by the separators (2c), (2d) are respectively formed between the device main body (2) and the permanent magnet rotor (5) and the base part (4) releases the attraction of the magnetic member (8) facing the attraction part (2e).

JPS605537	[Title of the device] Magnetic body roll
WO/2019/145253	MAGNETIC COUPLING ELEMENT WITH A MAGNETIC BEARING FUNCTION
WO/2013/114993	MAGNETIC CIRCUIT

TAKIZAWA SUGURU (JP)
YAMAMOTO YASUMASA (JP)

PCT/JP2022/014800

August 31, 2023

March 28, 2022

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KANETEC KK (JP)

H01F7/02

JPH0817624A	1996-01-19
JPH0510326Y2	1993-03-15
JP2005019551A	2005-01-20
JP2021138518A	2021-09-16

WATANUKI PATENT SERVICE BUREAU (JP)

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