US2124000A - Knitting machine for plaiting and reverse plaiting - Google Patents
Knitting machine for plaiting and reverse plaiting Download PDFInfo
- Publication number
- US2124000A US2124000A US79742A US7974236A US2124000A US 2124000 A US2124000 A US 2124000A US 79742 A US79742 A US 79742A US 7974236 A US7974236 A US 7974236A US 2124000 A US2124000 A US 2124000A
- Authority
- US
- United States
- Prior art keywords
- yarn
- plaiting
- yarns
- hook
- guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/38—Devices for supplying, feeding, or guiding threads to needles
- D04B15/54—Thread guides
- D04B15/58—Thread guides for circular knitting machines; Thread-changing devices
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B9/00—Circular knitting machines with independently-movable needles
- D04B9/26—Circular knitting machines with independently-movable needles for producing patterned fabrics
- D04B9/28—Circular knitting machines with independently-movable needles for producing patterned fabrics with colour patterns
- D04B9/34—Circular knitting machines with independently-movable needles for producing patterned fabrics with colour patterns by plating
Definitions
- This case concerns an invention in knitting machines of a type adapted to knit ornamental fabric by plaiting and reverse plaitingr.
- Theimprovement involves mechanism for positively 5 controlling the plaiting and reverse plaiting yarns in such a manner that the relative positions of the two or moreyarns as they lie in the fabric will be more precisely determined and that changes from one plaiting yarn to another will 10 be made more positively thus producing fabric with ornamental areas which are sharply defined and in which the plaiting yarn will'unfailingly cover the other yarn or yarns over which it lies to produce areas of a definite color as desired.
- Fig. 2 is a plan showing as much of thema- 20 chine as is necessary to indicate generally the construction and manner of applying the invention, to a hosiery machine;
- Fig. 3 is a section taken on line 3-3, Fig. 2, showing a fragment of the latch ring, a few 25 needles at the mouthpiece, yarn guides and a part of the device for controlling the position of yarns;
- Fig. 4 is a section taken on'the line 4-4, Fig. 3;
- Fig. 5 is a detail of the yarn engaging hook;
- Fig. 6 is an elevation of part oi the hosiery 30 machine indicating the controlling mechanism for the plaiting and reverse plaiting yarn separating means;
- Fig. '7 is a section taken through the machine frame and illustrating that mechanism which has 5 been shown in Fig. '6 as it appears from above;
- Figs. 8 and 9 are a section and plan, respectively, showing the yarn separating hook about to engage one of a pair of feeding yarns;
- Figs. 10 and 11 are similar views showing the hook in a position wherein it has engaged and is :aintaining one of the yarns in separated posi-
- Figs. 12 and 13 are similar views showing one of the yarns after being released upon a change 45 to separate plaiting-yams.
- Fig. 14 is a view showing a fragment of-the machine at the mouthpiece, the yarn engaging hook being shown about to engage and separate one oi' 'a new set of feeding yarns.
- Fig. 1 is an elevation showing the improved certain yarns such as some of the yams formed of artificially produced filaments, these yarns being very smooth and being particularly hard to .control when plaiting or reverse plaiting, as is well known.
- the general principle upon which the invention is based is that of maintaining two feeding yarns, one being knitted as a plaiting yarn, in as widely separated relationship as possible.
- a knitting machine has been illustrated with a frame I, needle cylinder 2, sinker assembly 3' and a so-called circular base -5 4.
- a latch ring 5 is pivoted for swinging upwardly at .the usual latch ring post (not shown) and this latch ring has the usual extension 6 for pivotally mounting a series of yarn guides herein shown as five in number, although more or less may be employed, these guides to be more specifically referred to as this description prograsses.
- the usual knitting cams would be employed, these not being illustrated although the front needle raise cam 1 is shown mounted on cam plate 8 and the bracket 9 carrying the instep' cams is also attached to this cam plate. Part of the main cam shaft I0 is seen in the lower.
- this shaft carrying the usualdrum II with suitable cams thereon for controlling the yarn guides through a series of fingers generally indicated at I! and which are connected in the usualway to levers l3 at the upper end oi bracket ll, all in a manner known-and described with respect to knitting machines of the Banner type.
- the invention may be employed with two colors, that is, with one yarn guide such as guide l5, Figs. 2 and 3, having therein two openings through which a plaiting yarn and a backing yarn are to be fed.
- the invention is not limited to only two yarns, and would be employed with four yarns, thus giving the knitter a choice of four colors for ornamentation of the .fabric, and of course, more guides and thus more colors may be added up to a number which may be reasonably handled within the ordinary knitting machine.
- the guide l5 has been shown feeding two yarns while the adjacent guide I6 is shown feeding two more yarns, and the description of the device will be given with respect to the knitting of these four colors in a fabric, this description being made with a purpose of disclosing one workable form of the invention which will be easily understood by those skilled in the art.
- the latch ring 5 has a bracket ll attached thereto by suitable connecting means, this bracket having a downwardly projecting part l8 and an upwardly projecting portion IS.
- the part which projects downwardly is slotted. as illustrated in Figs. 2 and 4 and guides a hook 20 to be moved transversely of the yarn feeding levers,
- latch ring is also slotted in continuation of the slot in the part of the bracket l8 so that the hook 20 is guided throughout practically its entire length, the inner end of this hook being reduced in height and terminating in a hooked end 2
- Two means for controlling this yarn separating hook are necessary.
- One means for controlling the hook for removing the same from active engagement with any yarns will be essential when knitting the heel and toe of the stocking,- and in fact, for all parts of the stocking which are not to be ornamented.
- Another control is found necessary for engaging the hook with and releasing yams during the knitting of patterned fabric, this control being worked from some part of the machine whereby frequent changes may be made so that diflerent colors may be forced to appear at the face of the fabric in rapid succession.
- upon shifting of the clutch, lever 3
- a spring 50 is connected to the rod 41 at 5
- Cam shaft III has a drum 53 fixed thereto to which has been attached a cam 54 for actuating the hook at the start ofknitting in the leg, that is, right after knitting the ring top; another cam 55 has been fixed to this drum to control the hook at the start in the foot-right after knitting the heel.
- cams 54 and 55 function upon a follower 55 projecting from the lever 4
- the timing of the cam shaft H) is such that a movement thereof at the start of the leg mat the start of the foot after the heel, imparts a sufllcient movement to the drum 53'for either cam 54 or 55 to raise lever 4
- the hook will be projected in to catch the plaiting yarn just afterits yarn guide has been lowered to feeding position.
- the striperdrumshaft 51 which is-- located at the back of the machine also carries a drum 58 having a plurality of double stepped cams 59 40 the follower 4
- the reason for constructing these earns 59 with double steps will be given with respect to the control of the yarn guides themselves.
- each of the wires 63 is controlled 4 by the usual levers I! which contact cams on drum H as previously described. This addifront of the fabric.
- Yarn guide l6 has just been moved to a feeding position, the other guide l5. being shown in raised or non-feeding pos'tion.
- the 'two yarns feeding through guide l5 are held in a suitable yarn binder while those yarns fed by guide l6 have already been taken by the needles and are fed through the mouthpiece.
- the plaiting yarn is indicated by numeral 65 while the backing yarn is indicated at 66.
- the relative position ofthese yarns will be reversed in the fabric upon the action of any reverse plaitingmechanism such as the sinker reverse plaiting characteristic of certain Banner machines.
- Fig. 9 the normal separation or 'divergence of the yarn is shown. With such separation of the yarns it would.
- the yarns 65 and 66 will be separated to a much greater extent and yarn 65 will be fed very close to the needle circle.
- yarn 65 has been shown just after it has snapped out of the hook prior to guide l5 being moved to feeding position, the guide being moved to thatposition in these views.
- the yarn 65 will be drawn back by the take-up and will'go into the binder along with yarn 66 as guide I6 is moved to inactive position as the follower 63 is raised on to the top of one of the cams 59.
- guide I6 is shown in extreme upper position, be taken into the binder and cut.
- Guide I5 is in lowermost position and the hook 26 has been projected inwardly to engage yarn 65', the new plaiting yarn, to separate it from yarn 66'.
- More guides might be employed to feed a greater number of yarns thus increasing the number of colors available; This description is merely given as one example of the invention as it applies to a machine feeding four colors, two ,at a time, any two of the yarns fed by one guide being subject to reverse plaiting.
- a yarn guide for feeding a plaiting" yarn and a backing yarn said yarn guide being constructed to feed one of the yarns closer to the circle of needles than the other and at a definiteangle thereto,'and means functioning independently of the guide guides were em-.
- means for feed- I ing a plaiting and backing yarn said means bethan that provided by said feeding means alone.
- a yarn guide having spaced guiding apertures through which a plaiting yarn and a backingyarn are threaded, the construction being such that the plaiting -yarn and the backing yarn are.
- a yarn guide for feeding two yarns, one yarn being fed closer to the needles than the other whereby they approach the knitting point at a convergent angle
- a hook movable substantially at rightangles to the yarn feeding guide for catching one of the yarns and for pulling it closer to the circle of needles whereby it will be fed at; an angle more widely spaced from the backing yarn than provided by the yarn feeding guide itself.
- a knitting machine for knitting one yarn in plaiting relation to another including yarn guides for feeding a plurality of yarns in such a manner that a plaiting yarn is fed to the needles at an angle to the direction in which the other yarn is fed to the needles and closer to the needles than the other yarn, automatically controlled means for withdrawing and projecting said yarn feeding guides to feeding position in accordance with a predetermined pattern, a hook for. catching the plaiting yarn and holding it in a position wherein it will feed to the needles at;a greater angle with respect to the other yarn than provided by the yarn feeding guide itself and pattern controlled meansfor moving this hook to and from yarn catching position as the yarn feeding guides are moved to and from their inactive position.
- a yarn feeding guide y' having two apertures through which yarns are fed, one of the said apertures feeding its yarn closer to a circle of needles than the other, means automatically actuated for. catching one of the yarns and moving it to a position closer to the circle of needles whereby it will be fed to the needles at as great an angle as possible with respect to the other yarn fed by the same feeding means.
- a yarn feeding and controlling means for knitting machines adapted to knit one yarn in plaiting relation to another yarn guides constructed to feed two yarns separately and at an angle to one another, said angle being insuflicient to cause one yarn to plait over the other without applying excessive tension thereto, a hook movable across the path of the feeding yarns adapted to catch the plaiting yarn and draw it away from the other yarn to increase the angle at which they feed whereby plaiting may be effected without resort to difference in tension.
- a latch ring In a knitting machine, a latch ring, a bracket attached to said ring and having a slot therein, a slot in the ring in continuation of that in the bracket, a hook comprising a shank and a yarn engaging point slidable within the slot and means functioning on the bracket for moving the hook in either direction.
- said means for moving the hook in either direction comprises a spring for moving it in one direction and pattern controlled elements functioning from timed parts of the knitting machine feeding a plaiting and backing yarn, said feeding means being constructed to feed said yarns to knitting instrumentalities at a definite angle and other means functioning independently of the feeding means for selectively engaging one of the yarns and moving it to a position so that the said plaiting andbacking yarns will then be fed at an angle considerably greater than originally provided by the feeding means itself.
- a knitting machine for knitting one yarn in plaiting relation to another including knitting instrumentalities and yarn feeding means for feeding a plurality of yarns, one of which may be a backing yarn and others of which may be knitted selectively as plaiting yarns, means for engaging one of the plaiting yarns and for moving it away from the backing yarn thereby to increase the angle at which the plaiting and backing yarn feed to the instrumentalities, and pattern controlled means functioning upon said yarn engaging means and functioning in timed relation to the plaiting yarn feeding means for disengaging the said means from one plaiting yarn and engaging it with another.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US79742A US2124000A (en) | 1936-05-14 | 1936-05-14 | Knitting machine for plaiting and reverse plaiting |
| FR820536D FR820536A (fr) | 1936-05-14 | 1937-04-12 | Perfectionnements aux métiers à tricoter les bas |
| GB13209/37A GB494846A (en) | 1936-05-14 | 1937-05-08 | Improvements in or relating to knitting machines for producing plated fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US79742A US2124000A (en) | 1936-05-14 | 1936-05-14 | Knitting machine for plaiting and reverse plaiting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2124000A true US2124000A (en) | 1938-07-19 |
Family
ID=22152511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US79742A Expired - Lifetime US2124000A (en) | 1936-05-14 | 1936-05-14 | Knitting machine for plaiting and reverse plaiting |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2124000A (fr) |
| FR (1) | FR820536A (fr) |
| GB (1) | GB494846A (fr) |
-
1936
- 1936-05-14 US US79742A patent/US2124000A/en not_active Expired - Lifetime
-
1937
- 1937-04-12 FR FR820536D patent/FR820536A/fr not_active Expired
- 1937-05-08 GB GB13209/37A patent/GB494846A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR820536A (fr) | 1937-11-13 |
| GB494846A (en) | 1938-11-02 |
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