Patent ID: 7112904

Claim:
An axial-type magnet rotation transmitting device, comprising: a driving rotation body having one or plural magnetic line(s) in which plural first magnets ( 10 A) are disposed in a circumferential direction on a first disk ( 11 A) at almost equal intervals; a drive source rotationally driving a drive shaft of said driving rotation body; and a driven rotation body having one or plural magnet line(s) in which second magnets ( 20 A) of the same number as the first magnets ( 10 A) are disposed in the circumferential direction on a second disk ( 21 A) at almost equal intervals, symmetrically disposed to, and magnetically coupled with said driving rotation body with a magnetic coupling gap, which utilizes a magnetic operation and which allows said driven rotation body to rotate by rotationally driving the drive shaft by means of said drive source, and wherein the first magnet ( 10 A) has a N-magnetic pole portion and a S-magnetic pole portion, and an extended surface of a boundary surface between the N-magnetic pole portion and the S-magnetic pole portion approximately overlaps with a driving center line as being a rotation center line of said driving rotation body; wherein the second magnet ( 20 A) has the N-magnetic pole portion and the S-magnetic pole portion, and the extended surface of the boundary surface between the N-magnetic pole portion and the S-magnetic pole portion approximately overlaps with a driven center line as being the rotation center line of said driven rotation body; wherein adjacent and facing surfaces of the first magnets ( 10 A) adjacent to each other on the first disk ( 11 A) are disposed so that magnetic pole faces having the same polarity make pairs, and wherein adjacent and facing surfaces of the second magnets ( 20 A) adjacent to each other on the second disk ( 21 A) are disposed so that the magnetic pole faces having the same polarity make pairs.