Patent ID: 9624080
Date: 2017-04-18
CPC Classifications: B23K,B66F

Claim:
1. A fork arm for load-carrying devices, comprising: a fork blade comprising a longitudinally horizontally extending portion; a fork bend comprising a front surface, a rear surface, an upper surface, and a lower surface; a fork back comprising a longitudinal vertically extending portion; the longitudinally horizontally extending portion of the fork blade having an upper surface, a lower surface, first and second sides, and a distal end opposing the fork bend, said fork blade comprising a plurality of lamellas arranged to form a stack of lamellas, the stack of lamellas comprising at least a top lamella and a bottom lamella, wherein each lamella of the plurality of lamellas includes a first side, a second side, an upper planar surface, a lower planer surface, and a length corresponding with the longitudinally horizontally extending portion of the fork blade measured from the fork bend to the distal end of the fork blade, wherein the length of each individual lamella decreases from said top lamella to said bottom lamella; the stack of lamellas comprising at least a first lamella and a second lamella, the second lamella being located adjacent to the first lamella in the stack of lamellas, wherein the first lamella is connected to the second lamella by a weld that penetrates the upper planar surface of the first lamella and the lower planar surface of the second lamella to depths of at least 15 mm, the weld having been formed by electron beam welding; the longitudinally vertically extending portion of the fork back further comprising an inner surface, an outer surface, and a distal end opposing the fork bend, the fork arm further comprising an upper connection element affixed to the distal end of the fork back for attaching the fork arm to a conveying device, a lower connection element affixed to the rear surface of the fork bend for attaching the fork arm to the conveying device, and a wear plate affixed to the lower surface of the fork bend.