MAGNETIC SPRING VIBRATING MECHANISM WITH NEGATIVE DAMPING CHARACTERISTIC

Japanese Patent JP3924596

B2

PROBLEM TO BE SOLVED: To compensate insufficiency of resiliency of a magnetic spring by rotating a rotor by external force through a ratchet mechanism so as to change the opposed area of a plurality of permanent magnets with like magnetic poles opposed to each other and to make output side repulsion larger than input side repulsion from the balanced positions of the permanent magnets.
SOLUTION: A magnetic spring structure body M has a base 5, a lateral pair of X-links 6, 6 and a top plate 7, and a ratchet wheel is rotatably fitted to a fixed disc fitted to the center of the base 5. Twenty-four teeth, for instance, are formed at the outer peripheral surface of the ratchet wheel, and twelve permanent magnets 58 are disposed circumferentially at specified spaces on the upper face of the ratchet wheel on the inside of the teeth. A disc is fixed to the lower face center of the top plate 7 through a fixed block 44, and twelve permanent magnets 70 are disposed circumferentially at specified spaces at the lower face of the disc so as to be opposed to the permanent magnets 58 with like magnetic poles. These permanent magnets 58, 70 generate maximum repulsion in the closest state.

Etsunori Fujita
Yutaka Sakamoto
Seiji Kawasaki

JP2766897A

June 06, 2007

February 12, 1997

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Delta Touring Co., Ltd.

B60N2/50; F16F15/03; F16F6/00; (IPC1-7): F16F15/03; B60N2/50; F16F6/00

JP5168222A
JP1210632A
JP9329184A
JP47020567A
JP48090221U

Aoyama Aoi

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