Cam mechanism for circular knitting machine
AssigneeOkuma Machinery Works Ltd.
InventorYosiharu Nakajima
Life of this patent
Estimating the term…
Abstract
A cam mechanism for a circular knitting machine includes stitch cams each of which is provided with main cam wall sections adapted to control the position of each descending needle after its operating butt has come into contact on its upper side with the one of the main cam wall sections. The stitch cam is also formed with auxiliary cam wall sections of substantially the same contours as the main ones for guiding the needle on the underside of either the same or another operating butt to permit smooth movement of the needle while the operating butt is being controlled by the main cam wall sections. The two cam wall sections cooperate to guide the needles without irregular motion of their butts or needle points.
Claims4
A cam mechanism for a circular knitting machine including stitch cams and double butt needles wherein each of said stitch cams is disposed inside or between a pair of fixed operating butts of each double-butt needle and is provided with main cam wall sections on its under side adapted to control the position of each double-butt needle while causing descending motion thereof after one of its operating butts has come into contact on its upper side with one of said main cam wall sections so that knitting operation is effected thereby, and each of said stitch cams is also provided with auxiliary cam wall sections on its upper side of substantially the same contours as said main cam wall sections for guiding the needle on the under side of the other operating butt to permit smooth movement of said each needle while said one operating butt is being controlled by said main cam wall sections, whereby said main cam wall sections and said auxiliary cam wall sections are brought into contact with the inner sides of the respective operating butts to minimize irregular motion of said each needle during knitting operation.
A cam mechanism for a circular knitting machine including stitch cams and double butt needles wherein each of said stitch cams is disposed outside a pair of fixed operating butts of each double-butt needle and is provided with main cam wall sections on its upper inner side adapted to control the position of each double-butt needle while causing descending motion thereof after one of its operating butts has come into contact on its upper side with one of said main cam wall sections so that knitting operation is effected thereby, and each of said stitch cams is also provided with auxiliary cam wall sections on its under inner side of substantially the same contours as said main cam wall sections for guiding the needle on the under side of the other operating butt to permit smooth movement of said each needle while said one operating butt is being controlled by said main cam wall sections, whereby said main cam wall sections and said auxiliary cam wall sections are brought into contact with the outer sides of the respective operating butts to minimize irregular motion of said each needle during knitting operation.
Dependencies are inferred from the claim text.