Card wire with improved tooth shape

摘要

A card wire comprises an elongated rib portion and teeth. The teeth have a front portion and a back portion. The teeth hang over towards their front portion. The front portion and back portion merge at the tip of the tooth. The front portion comprises at least three sections: a first section extends from the tip of the tooth in the direction of the rib portion, a second section extends below the first section in the direction of the rib portion and a third section extends from the end of the second section in the direction of the rib portion. The second section comprises a straight part and a curved segment, wherein the straight part has a minimum length of 0.10 mm and the straight part has an angle between 10 and 30 degrees relative to the length direction of the card wire.

主权项

1. A card wire comprising an elongated rib portion and teeth
said teeth are having a front portion and a back portion, said teeth are hanging over towards their front portion, said front portion and said back portion are merging at the tip of the tooth, said front portion comprises at least three sections, a first section extends from the tip of the tooth in the direction of the rib portion, a second section extends below the first section in the direction of the rib portion, said second section comprises a straight part and a curved segment, said straight part is having a minimum length of 0.10 mm and said straight part is having an angle between 10 and 30 degrees relative to the length direction of the card wire, and said straight part is followed in the direction of the rib portion by said curved segment wherein said curved segment is having a radius of at least 0.18 mm, and said front portion comprises a third section from the end of said second section in the direction of the rib portion.