Patent ID: 6203460
Filing Date: 2001-03-20
Classification: F16G

Abstract:
A power transmission chain, comprising:a first chain portion having a plurality of interlaced rows of links with each row having a plurality of transversely arranged links,pivot members joining said interlaced rows of links to form a chain assembly,said rows of links including inner links, said inner links each having a pair of apertures for receiving said pivot members and a pair of toes extending downward from each link to define a passageway,alternate rows of said links include asymmetrical guide links on the outer ends of said rows of links, said guide links having a pair of apertures for receiving said pivot members, said pivot members being fit securely within said apertures of said guide links,said guide links having a lower edge portion at a first end and an outwardly extending portion at a second end, said lower edge portion and said outwardly extending portion being asymmetrical about a vertical centerline between the apertures of said links,a plurality of struts, said struts having top portions positioned in said passageway of said toes of said links of said first chain portion;a second chain portion having a plurality of interlaced rows of links with each row having a plurality of transversely arranged links,pivot members joining said interlaced rows of links to form a chain assembly,said rows of links including inner links, said inner links each having a pair of apertures for receiving said pivot members and a pair of toes extending downward from each link to define a passageway,alternate rows of said links include asymmetrical guide links on the outer ends of said rows of links, said guide links having a pair of apertures for receiving said pivot members, said pivot members being fit securely within said apertures of said guide links,said guide links having a lower edge portion at a first end and an outwardly extending portion at a second end, said lower edge portion and said outwardly extending portion being asymmetrical about a vertical centerline between the apertures of said links,a plurality of struts, said struts having top portions positioned in said passageway of said toes of said links of said second chain portion; andsaid first chain portion and said second chain portion being placed in side-by-side relation and offset by one-half pitch length of said chain, said struts positioned within said first portion being interleaved with said struts positioned within said second portion.