Patent ID: 6397642
Filing Date: 2002-06-04
Classification: D04B

Abstract:
Automatic device for selection of needles in a circular knitting machine havingat least one needle bed with corresponding tricks arranged to accommodate needles and having at least one butt active with a first cam track of a cam section and capable of causing retraction of the needles to a stitch cam position, each of the needles being related to a first jack having a retractable butt that in an active position is moved by a second cam track that pushes said first jack thereby shifting the needle from a cancellation position to a loop position or a clearing position, and at least one second jack related to the first jack having selectable butts whereby manual selectors arranged in each knitting position cause movement of the retractable butt of the first jack and consequently select the needle so that said needle is kept in the cancellation position or cause movement of said needle to the loop position or to the clearing position, wherein said automatic needle selection device comprises an automatic cancellation selector which is movable between a first, active position and a second, retracted position; an automatic selection butt on the second jack that when activated causes movement of all the butts of the first jack and results in the cancellation of the needles independently of a programming arranged in a remainder of the selectors such as to permit the remainder of the selectors to select their corresponding selection butts whereby the needles knit according to the programming of the manual selectors.