Anti-vibration technique
AssigneeCanon Kabushiki Kaisha
InventorNobushige Korenaga
Life of this patent
Estimating the term…
Abstract
An anti-vibration apparatus includes a first magnet unit arranged on a support target and including a first permanent magnet, and a second magnet unit including a pair of second permanent magnets. The pair of second permanent magnets are arranged to interpose the first permanent magnet in noncontact with the first permanent magnet such that same magnetic poles of the first and second permanent magnet oppose each other. Sizes of the first and second magnet units are set such that a force acting between the first and second magnet units in a direction perpendicular to a direction in which the first magnet unit supports the support target is zero in a relative position range between the first and second magnet units.
Claims12
An anti-vibration apparatus comprising:
- a first magnet unit arranged on a support target and including a first permanent magnet;
- and
- a second magnet unit including a pair of second permanent magnets, said pair of second permanent magnets being arranged to interpose said first permanent magnet in noncontact with said first permanent magnet such that same magnetic poles of said first and second permanent magnet oppose each other,
- wherein sizes of said first and second magnet units are set such that no force acts between said first and second magnet units in a relative position range between said first and second magnet units in a direction perpendicular to a direction in which said first magnet unit supports the support target.
Dependencies are inferred from the claim text.