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US 4,510,775 AGranted
Flat knitting machine capable of changing stitch density
AssigneeShima Idea Center Co., Ltd.
InventorMasahiro Shima
Life of this patent
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AssigneeShima Idea Center Co., Ltd.
InventorMasahiro Shima
Estimating the term…
The present invention relates to a flat knitting machine capable of changing the stitch size of an optional wale in every course, and this flat knitting machine comprises a selector actuator for selecting needles to be raised to a knitting or tucking position, select jack pressers for locating at lower butt positions butts of select jacks for operating needles or corresponding jacks raised to a knitting or tucking position, and a pair of upper and lower piled knitting cams, the upper knitting cam being a knitting cam for higher butts, which is brought into butting contact with higher butts, and the lower knitting cam being a knitting cam for lower butts, which is brought into butting contact with lower butts, wherein the stitch size can appropriately be changed by changing the position to which the needles are brought down by said knitting cams.
A flat knitting machine including a needle bed having a plurality of needle grooves therein, needles in the needle grooves, a carriage positioned over the needle bed for movement thereacross and engagement with selected needles on the needle bed to effect knitting of different size stitches and means for changing stitch size comprising selector means positioned on the needle bed for selecting predetermined needles in the needle grooves for movement to an upper and a lower position, means carried by the carriage and engageable with the selected needles for moving the selected needles to the upper or lower position, cam means engageable with the selected needles in the upper or lower position to effect knitting different size stiches therewith and means for adjusting the cam means to vary the size of the stitches effected by the selected needles engaged with the cam means.
A flat knitting machine including at least one needle bed having a plurality of needle grooves therein a needle positioned in at least one of the needle grooves a jack within the needle groove in engagement with the needle for moving the needle longitudinally of the groove a select jack within the needle groove over the jack, pins retaining the select jack within the needle groove, resilient means urging the select jack out of the needle groove, one end of said select jack being in contact with the jack for deforming the jack inwardly of the needle groove to variably position a jack butt in a high or low position, a selector positioned within the needle groove, means engageable with the selector for moving the selector axially of the needle groove to move the select jack axially of the needle groove, a carriage movable over the needle bed including cam means for raising one end of the selector, selector actuating means for engaging butts on the selector to variably position the selector for selective engagement by a selector cam on the carriage whereby the selector is variably positioned axially of the needle groove on movement of the carriage past the needle groove to axially position the select jack in a high and low position in the needle groove and select jack pressers on the carriage for selectively engaging a select jack butt to selectively deform the jack to position the jack butt in high and low positions, a raise cam on the carriage and a guard cam for engaging the jack butt and moving the jack in a selected path to move the needle longitudinally in the needle groove and cam means on each side of the cam guard for guiding the jack butt including upper and lower cam members for engaging the jack butt to provide different size stitches including means for biasing the cams in a direction to increase the size of the stitches and means for limiting the movement of the upper and lower cams in the direction to increase the size of the stitches including a pivoted lever arm in engagement with each of the upper and lower cam means at one end and in engagement with an adjustable post at the other end and means for adjusting the position of the adjustable posts at the other ends of the arms including rotatable cams in engagement with the posts at the other ends of the arms for restricting movement of the posts in accordance with the angular position of the rotatable cams and means for angularly adjusting the positions of the rotatable cams comprising a stop plate having an arcuate recess on one side thereof engaged with one of the adjustable posts in a neutral position of the stop plate, a slide bar including stop means for stopping the stop plate in movement in either direction from its neutral position in which the adjustable posts are moved out of contact with the rotatable cam means and for limiting movement of the knitting cams on one side of the adjustable posts and motor means for selectively rotating each of the rotatable cams independently while it is out of engagement with the adjustable posts to adjust the stitch sizes.
Dependencies are inferred from the claim text.