METALLIC CARD WIRE

摘要

The metallic card wire (100) includes a rib portion (110) and a plurality of teeth (115). The teeth have a tip segment (117), a front portion (120), a back portion (130), two sides (141, 142) and an interconnection section connecting the back portion of a tooth to the front portion of the previous tooth. The teeth lean in the card wire longitudinal direction. The teeth's front portion leans towards the longitudinal direction. The front portion includes an undercut segment where the included angles of the tangents to the front portion with the longitudinal direction of the card wire are smaller than the included angles of the tangents to the front portion with the longitudinal direction of the card wire between the undercut segment and the tip segment. At least one side of the teeth includes at least a first structural element for increasing the frictional force of fibers relative to the side of the teeth and positioned closer to the tip segment compared to the undercut segment's position.

主权项

1. Metallic card wire comprising:
a rib portion and a plurality of teeth; wherein individual ones of the plurality of teeth have a tip segment, a front portion, a back portion, two sides and an interconnection section; wherein the interconnection section connects the back portion of a tooth of the plurality of teeth to the front portion of a previous tooth of the plurality of teeth; wherein the tip segment is where the front portion and the back portion merge; wherein the teeth are leaning in a longitudinal direction of the card wire; wherein the front portion is where the teeth are leaning towards the longitudinal direction of the teeth, wherein the front portion comprises an undercut segment; wherein the undercut segment is a segment of the front portion of the card wire, wherein in the undercut segment included angles of tangents to the front portion with the longitudinal direction of the card wire are smaller than included angles of tangents to the front portion of the card wire with the longitudinal direction of the card wire in a zone between the undercut segment and the tip segment; wherein at least one side of the teeth comprises at least a first structural element configured to increase a frictional force of fibers relative to the at least one side of the teeth, wherein the at least a first structural element is positioned closer to the tip segment compared to the undercut segment.