Patent ID: 6288623
Filing Date: 2001-09-11
Classification: B66C,H01F

Abstract:
A holding apparatus for the transport of conveyable articles, particularly for the lifting, transportation and stacking of ferromagnetic conveying articles, said apparatus comprising:at least two permanent magnets for generating a permanent magnetic field, wherein the permanent magnets are arranged in the web in each case at the bottom, top or in a position in between;at least two electric magnet coils, capable of being acted upon independently of one another either alternately or in the same direction, for generating a temporary magnetic field and for compensating for or intensifying the permanent magnetic field, anda magnetically conductive housing having two webs extending from a base plate, wherein, in each web at least one permanent magnet is capable of being screwed on, wherein the permanent magnets in each case are arranged:in a magnetizing direction (M), at the rear, wherein on pole (N, S)on the housing forms a magnetic return, andat the front, with the other pole (S, N) in the direction of a working gap (AS) relative to the conveyable articles;wherein the extension of the webs coincide with the respective magnetizing direction (M) of the permanent magnets; andwherein the magnetic coils are arranged, in cross section, in the direction of the web extension, with their windings, one behind the other or one above the other, in at least one web interspace, so as to rise on the base plate; andhaving a combined overall height which corresponds essentially to the length (L) of the webs; andwherein there are (2n+1) or (n+1) webs (6), where n=1, 2, 3, permanent magnets in each case, wherein the webs are arranged in cross section lying respectively opposite one another in pairs in comparison with a central middle web.