Magnetic roller conveyor
AssigneeBunri Kogyo Kabushiki Kaisha
InventorIwao Nazuka
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Abstract
A magnetic roller conveyor wherein a plurality of magnetic rollers are arranged in a row, each of which includes an outer drum and an inner drum disposed in the outer drum and having magnets mounted thereon. The outer drum is rotated while the inner drum is fixed, whereby objects are conveyed by making use of magnetic forces of the magnets. Each roller includes a dampingly magnetized segment mounted past the vertex of the roller, the force of the segment decreasing in the direction of travel to facilitate transfer to the adjacent roller.
Claims13
A magnetic roller conveyor for transporting objects, comprising a plurality of magnetic rollers arranged in a row in the transport direction of the roller conveyor, each of said magnetic rollers including:
- a rotatable conveying roller,
- a fixed inner barrel disposed within said rotatable conveying roller, and
- magnet means on the outer periphery of said fixed inner barrel and extending over substantially half of the circumference of said fixed inner inner barrel and extending over the vertex of said fixed inner barrel,
- a last part of said magnet means which is past the vertex of said fixed inner barrel in the direction of rotation of said conveying roller comprising a dampingly magnetized portion whose magnetic force decreases, relative to the magnetic force of the remaining portion of said magnet means, gradually in said direction of rotation of said conveying roller, said last part of said magnet means being adjacent a strong magnetic force portion of the magnet means of the next successive one of said plurality of magnetic rollers which has a stronger magnetic force than that of said dampingly magnetized portion.
Dependencies are inferred from the claim text.