Rack and shelving system, and method and apparatus for...

B - Operations – Transporting – 23 – K

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B23K 11/06 (2006.01) A47B 55/02 (2006.01) A47F 5/01 (2006.01) A47F 5/08 (2006.01) A47G 25/06 (2006.01) B21F 27/10 (2006.01) B23K 11/00 (2006.01) B23K 11/10 (2006.01) B23K 11/36 (2006.01) F16B 12/30 (2006.01) F16B 12/32 (2006.01)

Patent

CA 2210719

A method and apparatus for producing single plane ladder-type rack strip material (67) in which wire cross bar (52) are Tee-welded to the inside surface portions of opposed, parallel side elements (33, 34) formed of similar wire material. During welding, the cross bar element (52) is contacted at its center by an electrode (54) of a first polarity and placed between the side elements (33, 34), which are contacted on their outer surfaces by two electrodes (44, 45) of a second polarity. The welding current flows in substantially equal amounts from the first electrode (54) through the weld interfaces to the second electrodes (44, 45). The planar rack strip material (67) is formed into a variety of modular components to be used in rack (100, 110) and shelving structures (86) utilizing mounting blocks (83, 104) and connecting blocks (139).

Il est question d'une méthode et d'un appareil de fabrication de matériel de montage en bandes à plan simple et en forme d'échelle (67). Des fils de traverse (52) sont soudés à l'aide de tés à la surface intérieure d'éléments latéraux opposés (33, 34), disposés parallèlement et composés de fil semblable. Pendant le soudage, le fil de traverse (52) est relié au centre à une électrode (54) d'une première polarité et placé entre les deux éléments latéraux (33, 34), dont la surface extérieure est reliée à deux électrodes (44, 45) d'une deuxième polarité. Le courant de soudage circule de façon relativement uniforme de la première électrode (54) aux deuxièmes électrodes (44, 45) grâce aux interfaces de soudure. Le matériel de montage en bandes planes (67) est façonné en divers composants modulaires qui servent à fabriquer des présentoirs (100, 110) et des étagères (86) utilisant des blocs d'assemblage (83, 104) et des blocs de raccordement (139).

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