US2469360A

US2469360A - Knitting machine

Info

Publication number: US2469360A
Application number: US506561A
Authority: US
Inventors: Roy C Amidon
Original assignee: VF Corp
Current assignee: VF Corp
Priority date: 1943-10-16
Filing date: 1943-10-16
Publication date: 1949-05-10
Anticipated expiration: 1966-05-10

Description

May 10, 1949. R. c. AMIDON Km'r'n'iw MACHINE l9 Sheets-Sheet 1 Filed Oct. 16, 1943 Roy C. fimzdow,

May 10, 1949. R. c. AMIDON KNITTING MACHINE Filed Oct. 16, 1943 19 Sheets-Sheet 2' Roy 6'. Amz'don,

y R. c. AMIDON 2,469,360

KNITTING MACHINE Filed Oct. 16, 1945 19 Sheets-Sheet 3 Roy aAmi/clon,

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KNITTING MACHINE Filed Oct. 16, 1943 19 Sheets-Sheet 5 Us. E.

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KNITTING MACHINE Filed Oct. 16, 1943 19 Sheets-Sheet 6 Hg; 0. Amidow,

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May 10, 1949. R. c. AMIDON KNITTING MACHINE 19 Sheets-Sheet 7 Filed Oct. 16, 1943 Roy CfAmiaon,

R. C. AMlDON KNITTING MACHINE May 10, 1949.

Filed Oct. 16, 1943 19 Sheets-Sheet 8 w /l A? l w/ l .1 M r 5& wy 7 1 g. l ml nm PM D 1 o l. 0 m i l o a H May 10, 1949. R. c. AMIDON 2,469,360

KNITTING MACHINE Fild Oct. 16, 1945 19 Sheets-Sheet 9 Ray C. Amidon,

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KNITTING MACHINE Filed Oct. 16, 1943 v 19 Sheets-Sheet 1O May 10, 1949.. R. c. AMlDON KNITTING MACHINE l9 Sheets-Sheet 11 Filed Oct. 16, 1943 awn/rm,

R. C. AMlDON l9 Sheets-Sheet 12 May 10, 1949.

' Filed Oct. 16, 1943 May 10, 1949. R. c. AMIDON 19 Sheets-Sheet 15 Filed Oct. 16, l943 R. C. AMIDON May 10, 1949.

Filed Oct. l6, l9

May 10, 1949. R. c. AMIDON KNITTING MACHINE l9 Sheets-Sheet l7 Fild Oct. 16, 1943 May 10, 1949. R. c. AMIDON KNITTING MACHINE l9 Sheets-Shee t 19 Filed Oct. 16, 1943 gvwq/Mom, idorv,

Patented May 10, 1949 KNITTING MACHINE Roy 0. Amidon, Reading, Pa., assignor to Vanity Fair Mills, Inc., Reading, Pa., a corporation of Pennsylvania Application October 16, 1943, Serial No. 506,5.61

48 Claims. 1

My present invention relates to the art of warp knitting known as tricot knitting and it particularly has for its object to provide a machine which permits fabrics to be produced at a much greater speed than has been found possible with warp knitting or tricot machines, heretofore known.

In some heretofore known tricot-type knitting machines bearded needles are used, the needles being set in line and attached to a bar called the needle bar. The needles are extended upward and in the knitting process are lifted to a position where the thread guides are made to pass between and in back of the needles, (the thread guides being attached to a bar called the guide bar) and are placed in line. When more than one guide bar is used, the guides are arranged on one bar in front of another. This makes it necessary, in passing the thread guides between and in back of the needles and returning the same to the starting position, for the guides to be set at a depth that allows the threads to be drawn between the needles and not hook the thread at the top of the guide hole as the threads are being drawn through the guides from one side to the other. Consequently the needles have to remain in a dwell until the one or more sets of guides have passed backwardly between the needles and made their respective changes in back of the needles and again passed between the needles to the front. The needles are then extended upward to a position where the threads which have passed between the needles will be drawn under the needle beards as the needle bar continues its downward movement. At the point where the needle beards enter the sinkers the needles again come to :a dwell and the beard pressers are advanced to a position where they have closed the needle beards. The sinkers are then moved to a position where the closed needle beards have passed through the previously made stitch and into the knock-over position of the sinkers. The needles are then moved to the knock-over position and the sinkers are advanced to their starting position or their longest dwell period whereupon the needles are ready for their upward movement.

Another kind of tricot machine employs needles whose movement up and down is continuous, i. e., without periods of dwell, the beard pressers closing the needle beards within the spaces between the nib portion of the sinkers and holding the needle beards closed until the beard ends have passed by the open portions of the sinkers between the nibs and the knock-over sections and through the previously made threadloops. The beard pressers then release the beards and return to their starting position.

In the above described machines, it will be seen that the needles must necessarily have long strokes in the up and down movements in order that the threads may be placed under the needle beards. Also a long dwell in the needle movement is usually necessaryv in order that the, one or more, guide formations may be passed between and in back of the needles and again pass between the needles to the guide-starting position.

Some heretofore known machines use a hook with a sliding tongue in place of a bearded needle. In these machines the same general procedure has been followed, with the tongue sliding in the needle groove to close the hook opening so that the threads which have been placed in the needle hook may be drawn through the previously made thread-loops.

In my Patent Number 2,336,455, issued December 14, 1943, still another type of tricot machine is disclosed.

In tricot machines heretofore known the movement of the thread guide bars to place the thread under the needle beard or within the hook of the needle is accomplished by having the guide bars actuated by an arm which receives its motion from a pattern cam and roller, the roller being held on the pattern cam by spring action, the guide bar being placed between the needles by steps upon the cam and actuated in one direction by the direct push of the arm in the 0pposite direction by the spring action holding the arm roller to the cam. The type of thread guide that is used is one where the guides are cast in blocks which blocks are attached to the guide bar, the thread extending in a direct line from the tension rod to the eye of the guide and in some cases between the slay joint.

It is therefore an object of my present invention to provide a machine which obviates the objectionable features of prior machines and enables much faster knitting to be done than heretofore been possible. To that end the pres-