Patent ID: 6223578
Filing Date: 2001-05-01
Classification: B21D,B65H,Y10T

Abstract:
A method of manufacturing a sheet pressing wheel for controlling a sheet feed direction in a sheet feed mechanism by plastic working of a metal plate comprising:a first forming step of performing a punching operation for roughly forming at least a part of an outline shape of said wheel from said metal plate;a second forming step of effecting a face-pressing operation on an outline edge portion of said wheel formed by said first forming step to thereby thin said outline edge portion; anda third forming step of shaping the now thinned roughly formed outline edge portion by a punching operation;wherein said wheel has a protrusive portion in said outline edge portion; said first forming step and said third forming step forming a plane surface shape of said protrusive portion out of said metal plate; and said second forming step forming a sectional shape of said protrusive portion out of said metal plate so that said wheel is formed with a shape having an array of teeth as said protrusive portion.