EP2161359B1 - Stripe pattern knitting device in feed changer, and method therefor - Google Patents
Stripe pattern knitting device in feed changer, and method therefor Download PDFInfo
- Publication number
- EP2161359B1 EP2161359B1 EP08751639.9A EP08751639A EP2161359B1 EP 2161359 B1 EP2161359 B1 EP 2161359B1 EP 08751639 A EP08751639 A EP 08751639A EP 2161359 B1 EP2161359 B1 EP 2161359B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- yarn
- knitting
- changer
- yarn feed
- feeder
- 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.)
- Not-in-force
Links
Images
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
- D04B15/60—Thread guides for circular knitting machines; Thread-changing devices with thread-clamping or -severing devices
- D04B15/61—Thread guides for circular knitting machines; Thread-changing devices with thread-clamping or -severing devices arranged within needle circle
-
- 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
- D04B15/60—Thread guides for circular knitting machines; Thread-changing devices with thread-clamping or -severing devices
Definitions
- the present invention relates to a circular knitting machine and a method for knitting stripe patterns using that circular knitting machine equipped with yarn feed changers capable of knitting stripe patterns.
- Patent Document 1 in order to knit a stripe pattern using a circular knitting machine, yarns that are selectively fed by a yarn feed changer installed on the circular knitting machine are fed to knitting needles and formed into a fabric.
- the invention according to Patent Document 1 below is not capable of changing a number of yarns exceeding the number of fingers arranged in a yarn feed changer, whereas the invention according to Patent Document 2 is capable of doing that.
- Patent Document 2 JP-A-2006-16747
- Patent Document 2 describes a circular knitting machine in which a engaging member 81 equipped with a clamping organ 81 a that automatically tightens yarn is allocated to a stripe patterning attachment, and an opening organ 85 is fastened on the back of a yarn guide.
- These components 81 a and 85 are made of spring wire.
- protrusions such as the aforementioned made of wire can cause an injury to the operator at work.
- Other objects of the present invention are to feed a knitting yarn to a yarn carrier without fail when changing yarns, thereby preventing malfunction of the knitting machine when knitting a fabric, and to ensure the safety of the operator by eliminating protrusions.
- the present invention is a mechanism for knitting stripe patterns in a yarn feed changer in a circular knitting machine having yarn feed changers that change at least two knitting yarns, comprising: a first yarn feed changer established in a first feeder and having a plurality of yarn feed fingers that are selectively moved; a second yarn feed changer established in a second feeder and having a plurality of yarn feed fingers that are selectively moved; a yarn cutter and a yarn catcher for retaining and cutting an old knitting yarn that ceases to be fed after a new knitting yarn is fed to a knitting needle from the first and second yarn feed changers and formed into a loop; a yarn carrier that is established opposite the second feeder and feeds a yarn to a knitting needle; and a trapper that moves in the circumferential direction along with the rotation of the knitting machine and catches the yarn that is at the feed position and feeds the same to the knitting needle; characterized in that when any of the yarn feed fingers of the first yarn feed changer moves to the yarn feed position for newly feeding a yarn to the knitting needle, the newly fed yarn
- the present invention is also a method for knitting stripe patterns in a circular knitting machine having yarn feed changers that change at least two knitting yarns, in which a first feeder having a first yarn feed changer and a second feeder having a second yarn feed changer are used to knit one course, comprising: a step in which welt needle selection is performed by the first feeder; a step in which, when a knitting yarn is newly fed to a knitting needle from the first yarn feed changer, the knitting yarn caught by a trapper stably retains the angle at which it enters the yarn carrier; and a step in which, after new knitting yarns are fed to the knitting needles from the first and second yarn feed changers and formed into loops, old knitting yarns that cease to be fed are retained and cut at approximately the same position.
- the present invention when the manufacture of fabrics using a number of knitting yarns (color yarns) that exceeds the number of yarn feed fingers arranged in a yarn feed changer is desired using a circular knitting machine equipped with such a yarn feed changer, it is possible to manufacture stripe pattern fabrics by using two or more yarn feed changers and changing the multiple color knitting yarns. Moreover, when changing the yarns, it is possible to feed the knitting yarn to the yarn carrier without fail, thereby preventing malfunction of the knitting machine during the knitting process. According to the present invention it is also possible to ensure the safety of the operator by eliminating protrusions.
- the present invention can be achieved, while using a circular knitting machine equipped with a conventional yarn feed changer, by simply modifying a part of the yarn feed changer. There is no need to newly install a special device.
- the yarn feed changer of the present invention the one that is described in JP-A-2005-42260 can be used.
- This yarn feed changer can be used in either a double knit circular knitting machine or a single knit circular knitting machine.
- a first feeder and a second feeder are used to knit one course. So for example, if a yarn feed changer equipped with three yarn feed fingers is used (for each feeder), it is possible to knit a multiple color stripe pattern with six color knitting yarns.
- the first feeder performs welt needle selection. For this reason, this part of yarn carrier is removed.
- a yarn guide is provided between the first yarn feed changer established in the first feeder and the second yarn feed changer established in the second feeder.
- the yarn guide is preferably provided with a guide plane and a retaining part
- the guide plane helps the knitting yarn caught by the trapper that moves in sync with the rotation of the knitting machine to go up.
- the retaining part stably retains the angle at which this knitting yarn enters the yarn carrier.
- said trapper has a protrusion at its lower end.
- the device of the present invention is equipped with sets of yarn cutters and a yarn catcher that retain and cut old yarns that cease to be fed after new knitting yarns are fed to the knitting needles from the first and second yarn feed changers and formed into loops.
- Switch cams for opening and closing these have protrusions at different positions in the first yarn feed changer and the second yarn feed changer.
- Two kinds of cutter cams are provided, one for the first yarn feed changer and the other for the second yarn feed changer, each corresponding to the respective protrusion positions of the switch cams.
- the positions of the first cutter cam for the first yarn feed changer and the second cutter cam for the second yarn feed changer are set so that after new knitting yarns are fed to the knitting needles from the first and second yarn feed changers and formed into loops, old knitting yarns that cease to be fed are retained and cut at the same position.
- the distance between the first cutter cam and the second cutter cam equals the distance between each feeder, and the lower surfaces of the cutter cams have angles that correspond to the inclinations of the switch cams.
- knitting yarns are not knit at the first feeder that is in welt needle selection. For this reason, the knitting yarn fed from the first yarn feed changer of the first feeder is fed to the knitting needle that is in knit needle selection or tuck needle selection in the second feeder. Therefore, the position of the first cutter cam is shifted so that the (old) knitting yarn that was being fed from the first yarn feed changer is retained by the yarn catcher for the yarn feed fingers of the yarn feed changer and cut by a moving blade after a new knitting yarn passes the stitch point of the second feeder and overlaps the old knitting yarn at the yarn changing part of the fabric.
- FIG. 1 is a cross section of the core part of a knitting head of a double knit knitting machine, in which the knitting head 31 is established above a bed 30 supported by a plurality of legs (not shown).
- code 33 refers to a needle cylinder.
- a vertically slidable cylinder needle (not shown) is housed in the upper part of a needle groove (not shown) formed in the periphery of the needle cylinder 33.
- the cylinder needle is activated by a cam (not shown) housed in a cam holder 34 and moves up and down.
- the machine shown in FIG. 1 is a double knit circular knitting machine, it is further equipped with a needle dial 35 and a dial cam holder 36.
- a needle dial 35 Along needle grooves formed on the upper surface of the needle dial 35, dial needles (not shown) are slidably housed in the horizontal direction.
- the dial needles are activated by cams (not shown) housed in the dial cam holder 36 and move back and forth horizontally.
- a yarn carrier 37 is installed on the dial cam holder 36, and this yarn carrier 37 feeds yarn to the knitting needles.
- the driving gear 38 rotates at the same speed as the needle cylinder 33 when driven by the driving source installed in the knitting machine.
- a yarn feed changer 40 is installed above the dial cam holder 36.
- the yarn feed changer 40 is provided with a plurality of yarn feed fingers for guiding a plurality of individual knitting yarns.
- the yarn feed fingers operate in two steps: first moving downwards, then retreating upwards. Moving selectively between the low position, i.e., the yarn changing position, and the high position, i.e., the normal position, the yarn feed fingers feed the knitting yarns to the knitting needles.
- the actuator 1 rotating at the same speed as the knitting machine is established.
- the actuator 1 has a peg 1-1 using a piezoelectric element having a number of steps equaling the total of the number of steps corresponding to the number of yarns used for one yarn feed outlet and one special step for putting all yarns into a non yarn feeding condition.
- the selector unit 21 is made up of a select lever 21-1, a rocking bar 21-2, a slider 21-3, a switch plate 21-4 and a switch cam 21-5.
- the select lever 21-1 is engaged and pushed in when the peg 1-1 moves in response to the signal for either yarn feeding or non yarn feeding.
- the rocking lever 21-2 is positioned in the same space as the select lever 21-1 and is pushed in by the select lever 21-1 to rock around an engaging part 21-2b.
- the slider 21-3 is positioned in the same space as the rocking bar 21-2, engages with the rocking bar 21-2 at said engaging part 21-2b, and moves together with the rocking bar 21-2.
- the slider 21-3 is provided with a long hole 21-3a. Inside the long hole, a pin 21-3b is fastened, so that the slider 21-3 can move horizontally over the distance of this long hole.
- the switch plate 21-4 is positioned in the same space as the slider 21-3, engages with the slider 21-3 via a joint 21-4a, and moves together with the slider 21-3.
- a first cam 2 and a second cam 3 engage with a butt 21-2a and a butt 21-2b, which are at the left end and the right end of the rocking bar 21-2 respectively, and move the rocking bar 21-2 to the yarn feed position or the non yarn feed position.
- a third cam 4 (hereinafter referred to as "cutter cam 4") pushes in the switch cam 21-5 that is raised.
- a fourth cam 22 pushes down the butt 21-2a, which is at the left end of the rocking bar 21-2.
- Pushed down by the cutter cam 4 ("third cam") via the switch cam 21-5 and the switch plate 21-4 are a switch lever cam 5, a first link plate 6 that is linked to the switch lever cam 5, and a second link plate 7 that is linked to the first link plate 6.
- a switch lever 8 is linked to the first link plate 6 and the second link plate 7.
- a third link plate 9 is linked to the switch lever 8. Because the switch lever 8 is rotatable around a fulcrum 8-1, the third link plate 9 moves in the opposite direction from the second link plate 7.
- a long hole 24-1 provided in a housing plate 24 functions as the rotation guide.
- Code 10 is a spring for returning the components moved by the cutter cam 4 ("third cam") to their original positions.
- a fourth link plate 11 is positioned in the same space as the slider 21-3, engages with the slider 21-3 via a joint 11-1, and swings together with the slider 21-3.
- the fourth link plate 11 is rotatable around a fulcrum 11-2.
- a fifth link plate 12, which engages with the fourth link plate 11 via a joint 11-3 and swings, and a sixth link plate 13, which engages with the fifth link plate 12 via a joint 12-2 and swings, are provided respectively.
- the fifth link plate 12 is rotatable around a fulcrum 12-1.
- the finger unit 14 is made up of a fixed blade 14-1 for cutting the yarn that has been fed, a yarn catcher 14-3 for retaining the end of the yarn, a moving blade 14-2 for cutting the yarn that is retained in contact with the fixed blade 14-1, and a case 14-4 for retaining the yarn catcher 14-3 and the moving blade 14-2 while at the same time opening and closing them repeatedly.
- a first pin 19 Connected to the tip of the second link plate 7 is a first pin 19, which pushes down a protrusion 14-4a of the case 14-4 and closes the yarn catcher 14-3 and the moving blade 14-2 together with the case 14-4, thereby retaining and cutting the yarn.
- a second pin 20 Connected to the tip of the third link plate 9 is a second pin 20, which pulls up a protrusion 14-4b of the case 14-4 and opens the yarn catcher 14-3 and the moving blade 14-2 together with the case 14-4, thereby releasing the retained yarn.
- Other components include a trapper 15 and a yarn guide 16 such as those shown in FIG. 5 .
- a protrusion 15-1 it is preferable to provide a protrusion 15-1 at the tip of the trapper.
- the trapper 15 moves in the circumferential direction along with the rotation of the knitting machine, catches the yarn at the yarn feed position, and feeds the yarn to the knitting needle without fail.
- the yarn guide 16 separates a plurality of yarns and stabilizes their positions.
- the yarn guide 16 used in this example is a long and narrow plate provided with an indentation and a protrusion on the side facing the outside of the knitting machine.
- the indentation and protrusion includes a guide plane 16-1 made up of an upward slope and an elevated part, and a retaining part 16-2, which is an indentation provided above said guide plane.
- FIG 6 (b) shows how yarns are changed in a conventional changing method.
- yarn feed changers 40 each having three yarn feed fingers 14 are installed on a first feeder F1 and a second feeder F2 respectively.
- FIG. 6 (a) shows how yarns are changed using the changing method of the present invention.
- yarn feed changers 40-1 and 40-2 are installed on a first feeder F1 and a second feeder F2 respectively.
- a yarn guide 16 Between the first yarn feed changer 40-1 and the second yarn feed changer 40-2, however, is a yarn guide 16, while the yarn carrier for the first feeder is removed to allow welt needle selection, making this method different from that of the prior art.
- the knitting yarn that is fed from the first yarn feed changer 40-1 is fed to the second feeder F2 without being knit at the first feeder F1, which is in welt needle selection. For this reason, when a newly fed knitting yarn reaches position A, the yarn is not changed satisfactorily at the normal position at which the cutter operates because timing is too early. It should be arranged so that yarn change takes place when a newly fed knitting yarn reaches position B.
- the opening and closing motions of the yarn cutter 14-1, 14-2 and the yarn catcher 14-3 are effected by the actions of the switch cams 21-5 and the cutter cams 4.
- the positions of the protrusions of the switch cams 21-5 for opening and closing these are different in the first yarn feed changer 40-1 and the second yarn feed changer 40-2.
- the arrangement of the two kinds of switch cams, 21-5a and 21-5b, and two kinds of cutter cams, 4-1 and 4-2, is important.
- the first switch cam 21-5a and the second switch cam 21-5b are arranged in the upper parts of the first and second yarn feed changers 40-1 and 40-2.
- FIGs. 2 (d) and (e) are arrow views of FIGs. 2 (a) and (c) respectively, showing the arrangement of the cutter cams 4-1, 4-2 and the standard cutter cam 4.
- the arrows in FIGs. 2 (d) and (e) indicate the rotational directions of the circular knitting machine.
- the distance between the first cutter cam 4-1 and the second cutter cam 4-2 in FIG. 2 (a) is the distance between each feeder, which is the same as the distance between A and B in FIG. 6 (a) or the distance between X and X in FIG. 6 (b) .
- the first cutter cam 4-1 and the second cutter cam 4-2 are mounted on the knitting machine in such a way that the distance between them is adjustable.
- the lower surfaces of the cutter cams 4-1 and 4-2 have angles that correspond to the inclinations of the switch cams 21-5a and 21-5b.
- the knitting yarn that was fed from either of the first and second yarn feed changers 40-1 and 40-2, i.e., old yarn, is retained and cut at position B in FIG. 6 (a) .
- FIG. 5 (a) shows how a knitting yarn fed from the first yarn feed changer 40-1 to the yarn carrier 37 is changed.
- the end of the yarn held by the yarn catcher 14-3 is released as the yarn catcher 14-3 opens.
- the old yarn OY that was being knit is retained and cut, allowing the knitting yarn to enter the opening of the yarn catcher 14-3, and as shown in FIG. 2 , the cutter cams 4-1 and 4-2, moving at the same speed as the knitting machine in the circumferential direction, push down the switch cams 21-5a and 21-5b, thereby closing the yarn catcher 14-3 and the moving blade 14-2 via link parts 6, 7, 8 and 9.
- the present invention can be carried out in a conventional circular knitting machine by modifying part of it, and it is also possible to revert the machine of the present invention to a conventional machine.
- the standard cutter cam 4 (See FIG. 2 (c) ) is arranged so that it acts on the first switch cam 21-5a and the second switch cam 21-5b at the same timing when the knitting yarn reaches position X shown in FIG. 6 (b) .
- the standard cutter cam 4 is desirably designed wide enough so that it acts on the protrusions of both the first switch cam 21-5a and the second switch cam 21-5b.
- FIG. 2 (c) shows both the first switch cam 21-5a and the second switch cam 21-5b for convenience, in fact, the first switch cam 21-5a is built into the first yarn feed changer 40-1 and the second switch cam 21-5b is built into the second yarn feed changer 40-2.
- the stripe pattern knitting apparatus of the present invention can also be installed on a single knit machine.
- FIG. 4 is a cross section of the core part of a knitting head of a single knit machine, in which the knitting head 32A is established above a bed 31A supported by a plurality of legs (not shown).
- code 33A refers to a needle cylinder. Housed in a needle groove (not shown) formed in the periphery of the needle cylinder 33A is a vertically slidable cylinder needle (not shown).
- the machine shown in FIG. 4 is a single knit machine, it is further equipped with a sinker dial 41 and a sinker cap 42.
- a sinker 43 which cooperates with the cylinder needle (not shown), is provided so that it is radially slidable on the sinker dial 41, which is arranged horizontally.
- the sinker 43 is controlled by a sinker cam 44, which is attached to the sinker cap 42.
- the sinker cap 42 is supported by an annular sinker cap ring 45, which is supported by an intermediate ring 47 via a support 46.
- a yarn carrier holder 48 for mounting a yarn carrier 37A that feeds yarn to the knitting needle is established and attached to a yarn carrier ring 47.
- the driving gear 38A rotates at the same speed as the needle cylinder 33A when driven by the driving source installed in the circular knitting machine.
- the yarn feed changer 40A is provided with a plurality of yarn feed fingers 14A for guiding a plurality of individual knitting yarns.
- the yarn feed fingers operate in two steps: first moving downwards, then retreating upwards. Moving selectively between the low position, i.e., the yarn changing position, and the high position, i.e., the normal position, the yarn feed fingers feed the knitting yarns to the knitting needles.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
- Knitting Of Fabric (AREA)
Description
- The present invention relates to a circular knitting machine and a method for knitting stripe patterns using that circular knitting machine equipped with yarn feed changers capable of knitting stripe patterns.
- Typically, as described in Patent Document 1 below, in order to knit a stripe pattern using a circular knitting machine, yarns that are selectively fed by a yarn feed changer installed on the circular knitting machine are fed to knitting needles and formed into a fabric. The invention according to Patent Document 1 below is not capable of changing a number of yarns exceeding the number of fingers arranged in a yarn feed changer, whereas the invention according to
Patent Document 2 is capable of doing that.
Patent Document 1:JP-A-2005-42260
Patent Document 2:JP-A-2006-16747 -
Patent Document 2 describes a circular knitting machine in which a engaging member 81 equipped with a clamping organ 81 a that automatically tightens yarn is allocated to a stripe patterning attachment, and an opening organ 85 is fastened on the back of a yarn guide. These components 81 a and 85 are made of spring wire. - Because of this arrangement, when this machine starts to knit a fabric, or when a hole is made on the fabric, the fabric or the end of the yarn can twine around these components, causing a major trouble to the knitting machine itself.
- Furthermore, when the knitting machine is in operation, protrusions such as the aforementioned made of wire can cause an injury to the operator at work.
- It is an object of the present invention to manufacture stripe pattern fabrics using a number of knitting yarns (color yarns) exceeding the number of yarn feed fingers arranged in a yarn feed changer. Other objects of the present invention are to feed a knitting yarn to a yarn carrier without fail when changing yarns, thereby preventing malfunction of the knitting machine when knitting a fabric, and to ensure the safety of the operator by eliminating protrusions.
- The objects of the present invention are solved by a circular knitting machine according to claim 1 and its
dependent claims 2 to 5 as well as a method according to claim 6 and itsdependent claim 7. - The present invention is a mechanism for knitting stripe patterns in a yarn feed changer in a circular knitting machine having yarn feed changers that change at least two knitting yarns, comprising: a first yarn feed changer established in a first feeder and having a plurality of yarn feed fingers that are selectively moved; a second yarn feed changer established in a second feeder and having a plurality of yarn feed fingers that are selectively moved; a yarn cutter and a yarn catcher for retaining and cutting an old knitting yarn that ceases to be fed after a new knitting yarn is fed to a knitting needle from the first and second yarn feed changers and formed into a loop; a yarn carrier that is established opposite the second feeder and feeds a yarn to a knitting needle; and a trapper that moves in the circumferential direction along with the rotation of the knitting machine and catches the yarn that is at the feed position and feeds the same to the knitting needle; characterized in that when any of the yarn feed fingers of the first yarn feed changer moves to the yarn feed position for newly feeding a yarn to the knitting needle, the newly fed yarn is caught by said trapper and pushed up to the normal angle at which it enters the yarn carrier by a yarn guide, which is established between the first and second yarn feed changers and has a retaining part, and retained by said retaining part; and the yarn cutter and a yarn catcher are established in such a way that the yarn fed from either of the first yarn feed changer and the second yarn feed changer is retained and cut at approximately the same position as it ceases to be fed and becomes an old yarn.
- The present invention is also a method for knitting stripe patterns in a circular knitting machine having yarn feed changers that change at least two knitting yarns, in which a first feeder having a first yarn feed changer and a second feeder having a second yarn feed changer are used to knit one course, comprising: a step in which welt needle selection is performed by the first feeder;
a step in which, when a knitting yarn is newly fed to a knitting needle from the first yarn feed changer, the knitting yarn caught by a trapper stably retains the angle at which it enters the yarn carrier; and a step in which, after new knitting yarns are fed to the knitting needles from the first and second yarn feed changers and formed into loops, old knitting yarns that cease to be fed are retained and cut at approximately the same position. - According to the present invention, when the manufacture of fabrics using a number of knitting yarns (color yarns) that exceeds the number of yarn feed fingers arranged in a yarn feed changer is desired using a circular knitting machine equipped with such a yarn feed changer, it is possible to manufacture stripe pattern fabrics by using two or more yarn feed changers and changing the multiple color knitting yarns. Moreover, when changing the yarns, it is possible to feed the knitting yarn to the yarn carrier without fail, thereby preventing malfunction of the knitting machine during the knitting process. According to the present invention it is also possible to ensure the safety of the operator by eliminating protrusions.
- The present invention can be achieved, while using a circular knitting machine equipped with a conventional yarn feed changer, by simply modifying a part of the yarn feed changer. There is no need to newly install a special device.
- For the yarn feed changer of the present invention, the one that is described in
JP-A-2005-42260 - In the present invention, a first feeder and a second feeder are used to knit one course. So for example, if a yarn feed changer equipped with three yarn feed fingers is used (for each feeder), it is possible to knit a multiple color stripe pattern with six color knitting yarns.
- In the present invention, the first feeder performs welt needle selection. For this reason, this part of yarn carrier is removed.
- In the present invention, a yarn guide is provided between the first yarn feed changer established in the first feeder and the second yarn feed changer established in the second feeder. The yarn guide is preferably provided with a guide plane and a retaining part When a knitting yarn is newly fed to a knitting needle from the first yarn feed changer, the guide plane helps the knitting yarn caught by the trapper that moves in sync with the rotation of the knitting machine to go up. The retaining part stably retains the angle at which this knitting yarn enters the yarn carrier. For the same purpose, it is preferable that said trapper has a protrusion at its lower end.
- The device of the present invention is equipped with sets of yarn cutters and a yarn catcher that retain and cut old yarns that cease to be fed after new knitting yarns are fed to the knitting needles from the first and second yarn feed changers and formed into loops. Switch cams for opening and closing these have protrusions at different positions in the first yarn feed changer and the second yarn feed changer. Two kinds of cutter cams are provided, one for the first yarn feed changer and the other for the second yarn feed changer, each corresponding to the respective protrusion positions of the switch cams.
- The positions of the first cutter cam for the first yarn feed changer and the second cutter cam for the second yarn feed changer are set so that after new knitting yarns are fed to the knitting needles from the first and second yarn feed changers and formed into loops, old knitting yarns that cease to be fed are retained and cut at the same position.
- For this purpose, it is preferable that the distance between the first cutter cam and the second cutter cam equals the distance between each feeder, and the lower surfaces of the cutter cams have angles that correspond to the inclinations of the switch cams.
- According to the present invention, knitting yarns are not knit at the first feeder that is in welt needle selection. For this reason, the knitting yarn fed from the first yarn feed changer of the first feeder is fed to the knitting needle that is in knit needle selection or tuck needle selection in the second feeder. Therefore, the position of the first cutter cam is shifted so that the (old) knitting yarn that was being fed from the first yarn feed changer is retained by the yarn catcher for the yarn feed fingers of the yarn feed changer and cut by a moving blade after a new knitting yarn passes the stitch point of the second feeder and overlaps the old knitting yarn at the yarn changing part of the fabric.
- Embodiments of the present invention will now be described by reference to the accompanying drawings.
-
-
FIG. 1 is a cross section showing a knitting head of a double knit circular knitting machine used in the present invention. -
FIG. 2 is an enlarged view of the upper part of a yarn feed changer used in the present invention. -
FIG. 3 is a cross section of a yarn feed changer used in the present invention. -
FIG. 4 is a cross section showing a knitting head of a single knit circular knitting machine used in the present invention. -
FIG. 5 shows the way knitting yarns are changed in a knitting head in which a yarn feed changer and a yarn guide used in the present invention are arranged. -
FIG. 6 shows a knitting head of the present invention (a) and a conventional knitting head (b). -
FIG. 1 is a cross section of the core part of a knitting head of a double knit knitting machine, in which the knittinghead 31 is established above abed 30 supported by a plurality of legs (not shown). In this drawing,code 33 refers to a needle cylinder. In the upper part of a needle groove (not shown) formed in the periphery of theneedle cylinder 33, a vertically slidable cylinder needle (not shown) is housed. The cylinder needle is activated by a cam (not shown) housed in acam holder 34 and moves up and down. - Because the machine shown in
FIG. 1 is a double knit circular knitting machine, it is further equipped with aneedle dial 35 and adial cam holder 36. Along needle grooves formed on the upper surface of theneedle dial 35, dial needles (not shown) are slidably housed in the horizontal direction. The dial needles are activated by cams (not shown) housed in thedial cam holder 36 and move back and forth horizontally. Ayarn carrier 37 is installed on thedial cam holder 36, and thisyarn carrier 37 feeds yarn to the knitting needles. - Below the
needle cylinder 33 is adriving gear 38 integrally mounted thereto. Thedriving gear 38 rotates at the same speed as theneedle cylinder 33 when driven by the driving source installed in the knitting machine. - Above the
dial cam holder 36, ayarn feed changer 40 is installed. - The
yarn feed changer 40 is provided with a plurality of yarn feed fingers for guiding a plurality of individual knitting yarns. The yarn feed fingers operate in two steps: first moving downwards, then retreating upwards. Moving selectively between the low position, i.e., the yarn changing position, and the high position, i.e., the normal position, the yarn feed fingers feed the knitting yarns to the knitting needles. - Except for the improvement of the present invention, the same apparatus described in Japanese Patent Laid-Open No.
42260/2005 yarn feed changer 40. This striper will now be described referring toFIG. 3 . Detailed description of its operation is omitted here as it is disclosed in paragraphs [0031] to [0059] of the same gazette. - At the uppermost part of the striper, an actuator 1 rotating at the same speed as the knitting machine is established. The actuator 1 has a peg 1-1 using a piezoelectric element having a number of steps equaling the total of the number of steps corresponding to the number of yarns used for one yarn feed outlet and one special step for putting all yarns into a non yarn feeding condition.
- Acting in response to the movement of the peg 1-1 is a
selector unit 21. Theselector unit 21 is made up of a select lever 21-1, a rocking bar 21-2, a slider 21-3, a switch plate 21-4 and a switch cam 21-5. - The select lever 21-1 is engaged and pushed in when the peg 1-1 moves in response to the signal for either yarn feeding or non yarn feeding.
- The rocking lever 21-2 is positioned in the same space as the select lever 21-1 and is pushed in by the select lever 21-1 to rock around an engaging part 21-2b.
- The slider 21-3 is positioned in the same space as the rocking bar 21-2, engages with the rocking bar 21-2 at said engaging part 21-2b, and moves together with the rocking bar 21-2. The slider 21-3 is provided with a long hole 21-3a. Inside the long hole, a pin 21-3b is fastened, so that the slider 21-3 can move horizontally over the distance of this long hole.
- The switch plate 21-4 is positioned in the same space as the slider 21-3, engages with the slider 21-3 via a joint 21-4a, and moves together with the slider 21-3.
- When any switch plate 21-4 moves to the yarn feed position, the switch cam 21-5 is raised by that switch plate 21-4.
- Four cams that act on the
selector unit 21 are provided on arotary ring 23 and rotate at the same speed as the knitting machine. Afirst cam 2 and a second cam 3 engage with a butt 21-2a and a butt 21-2b, which are at the left end and the right end of the rocking bar 21-2 respectively, and move the rocking bar 21-2 to the yarn feed position or the non yarn feed position. A third cam 4 (hereinafter referred to as "cutter cam 4") pushes in the switch cam 21-5 that is raised. A fourth cam 22 pushes down the butt 21-2a, which is at the left end of the rocking bar 21-2. - Pushed down by the cutter cam 4 ("third cam") via the switch cam 21-5 and the switch plate 21-4 are a
switch lever cam 5, a first link plate 6 that is linked to theswitch lever cam 5, and asecond link plate 7 that is linked to the first link plate 6. - A switch lever 8 is linked to the first link plate 6 and the
second link plate 7. Athird link plate 9 is linked to the switch lever 8. Because the switch lever 8 is rotatable around a fulcrum 8-1, thethird link plate 9 moves in the opposite direction from thesecond link plate 7. A long hole 24-1 provided in ahousing plate 24 functions as the rotation guide. -
Code 10 is a spring for returning the components moved by the cutter cam 4 ("third cam") to their original positions. - In the space other than that for the
select lever 21 corresponding to the peg 1-1 in the special step for putting all yarns into a non yarn feeding condition, afourth link plate 11 is positioned in the same space as the slider 21-3, engages with the slider 21-3 via a joint 11-1, and swings together with the slider 21-3. Thefourth link plate 11 is rotatable around a fulcrum 11-2. - A
fifth link plate 12, which engages with thefourth link plate 11 via a joint 11-3 and swings, and asixth link plate 13, which engages with thefifth link plate 12 via a joint 12-2 and swings, are provided respectively. Thefifth link plate 12 is rotatable around a fulcrum 12-1. - Connected to the
sixth link plate 13 is afinger unit 14. Thefinger unit 14 is made up of a fixed blade 14-1 for cutting the yarn that has been fed, a yarn catcher 14-3 for retaining the end of the yarn, a moving blade 14-2 for cutting the yarn that is retained in contact with the fixed blade 14-1, and a case 14-4 for retaining the yarn catcher 14-3 and the moving blade 14-2 while at the same time opening and closing them repeatedly. - Connected to the tip of the
second link plate 7 is afirst pin 19, which pushes down a protrusion 14-4a of the case 14-4 and closes the yarn catcher 14-3 and the moving blade 14-2 together with the case 14-4, thereby retaining and cutting the yarn. Connected to the tip of thethird link plate 9 is asecond pin 20, which pulls up a protrusion 14-4b of the case 14-4 and opens the yarn catcher 14-3 and the moving blade 14-2 together with the case 14-4, thereby releasing the retained yarn. - Other components include a
trapper 15 and ayarn guide 16 such as those shown inFIG. 5 . In the present invention, it is preferable to provide a protrusion 15-1 at the tip of the trapper. - The
trapper 15 moves in the circumferential direction along with the rotation of the knitting machine, catches the yarn at the yarn feed position, and feeds the yarn to the knitting needle without fail. - The
yarn guide 16 separates a plurality of yarns and stabilizes their positions. Theyarn guide 16 used in this example is a long and narrow plate provided with an indentation and a protrusion on the side facing the outside of the knitting machine. As shown inFIG. 5 , the indentation and protrusion includes a guide plane 16-1 made up of an upward slope and an elevated part, and a retaining part 16-2, which is an indentation provided above said guide plane. -
FIG 6 (b) shows how yarns are changed in a conventional changing method. In this drawing,yarn feed changers 40 each having threeyarn feed fingers 14 are installed on a first feeder F1 and a second feeder F2 respectively.FIG. 6 (a) , on the other hand, shows how yarns are changed using the changing method of the present invention. As in the prior art, yarn feed changers 40-1 and 40-2 are installed on a first feeder F1 and a second feeder F2 respectively. Between the first yarn feed changer 40-1 and the second yarn feed changer 40-2, however, is ayarn guide 16, while the yarn carrier for the first feeder is removed to allow welt needle selection, making this method different from that of the prior art. - As shown in
FIG. 6 (a) , the knitting yarn that is fed from the first yarn feed changer 40-1, is fed to the second feeder F2 without being knit at the first feeder F1, which is in welt needle selection. For this reason, when a newly fed knitting yarn reaches position A, the yarn is not changed satisfactorily at the normal position at which the cutter operates because timing is too early. It should be arranged so that yarn change takes place when a newly fed knitting yarn reaches position B. - The opening and closing motions of the yarn cutter 14-1, 14-2 and the yarn catcher 14-3 are effected by the actions of the switch cams 21-5 and the
cutter cams 4. In the present invention, the positions of the protrusions of the switch cams 21-5 for opening and closing these are different in the first yarn feed changer 40-1 and the second yarn feed changer 40-2. Also, two kinds ofcutter cams 4-- cutter cam 4-1 and cutter cam 4-2--are provided for the first yarn feed changer 40-1 and the second yarn feed changer 40-2, corresponding to each protruding position of the switch cams 21-5. In the present invention, the arrangement of the two kinds of switch cams, 21-5a and 21-5b, and two kinds of cutter cams, 4-1 and 4-2, is important. - As shown in
FIG. 2 (a) and (b) , the first switch cam 21-5a and the second switch cam 21-5b are arranged in the upper parts of the first and second yarn feed changers 40-1 and 40-2. -
FIGs. 2 (d) and (e) are arrow views ofFIGs. 2 (a) and (c) respectively, showing the arrangement of the cutter cams 4-1, 4-2 and thestandard cutter cam 4. The arrows inFIGs. 2 (d) and (e) indicate the rotational directions of the circular knitting machine. The distance between the first cutter cam 4-1 and the second cutter cam 4-2 inFIG. 2 (a) is the distance between each feeder, which is the same as the distance between A and B inFIG. 6 (a) or the distance between X and X inFIG. 6 (b) . The first cutter cam 4-1 and the second cutter cam 4-2 are mounted on the knitting machine in such a way that the distance between them is adjustable. The lower surfaces of the cutter cams 4-1 and 4-2 have angles that correspond to the inclinations of the switch cams 21-5a and 21-5b. - After a new knitting yarn is formed into a loop at the second feeder F2 (after the new and old yarns overlap at the switch part), the knitting yarn that was fed from either of the first and second yarn feed changers 40-1 and 40-2, i.e., old yarn, is retained and cut at position B in
FIG. 6 (a) . - At this time, the yarn needs to be carried to the innermost part of the yarn carrier groove by the
trapper 15, but the feeding angle of the yarn in the first feeder F1 is too shallow with respect to theyarn carrier 37 of the second feeder F2, so it is hard for the yarn to reach the innermost recess. In the present invention, as described in the following paragraphs, this problem is solved by changing the shapes of thetrapper 15 and theyarn guide 16. -
FIG. 5 (a) shows how a knitting yarn fed from the first yarn feed changer 40-1 to theyarn carrier 37 is changed. When a selectively movedyarn feed finger 14 of the yarn feed changer is moved to the yarn feed position where the yarn is fed to a knitting needle (in other words, after theyarn feed finger 14 moved from the normal position to the yarn changing position), a tip of thetrapper 15 rotating at the same speed as the knitting machine catches the knitting yarn retained by the yarn catcher 14-3. The newly fed knitting yarn NY, caught by thetrapper 15, is located between the first yarn feed changer 40-1 and the second yarn feed changer 40-2 and passes under the bottom of theyarn guide 16. - Furthermore, as shown in
FIG 5 (b) , as thetrapper 15 moves, the knitting yarn rises along the upward sloping guide plane 16-1 of theyarn guide 16, at a point approximately at the middle between the yarn feed changer and theyarn carrier 37, until it reaches the concave retaining part 16-2. At this time, the end of the knitting yarn NY caught by the protrusion 15-1 of thetrapper 15 is caught by the hook of the knitting needle after being led by theyarn carrier 37. - After that, the end of the yarn held by the yarn catcher 14-3 is released as the yarn catcher 14-3 opens. At the same time, the old yarn OY that was being knit is retained and cut, allowing the knitting yarn to enter the opening of the yarn catcher 14-3, and as shown in
FIG. 2 , the cutter cams 4-1 and 4-2, moving at the same speed as the knitting machine in the circumferential direction, push down the switch cams 21-5a and 21-5b, thereby closing the yarn catcher 14-3 and the moving blade 14-2 vialink parts - The present invention can be carried out in a conventional circular knitting machine by modifying part of it, and it is also possible to revert the machine of the present invention to a conventional machine.
- To revert the machine of the present invention to a conventional machine such as that shown in
FIG. 6 (b) , the standard cutter cam 4 (SeeFIG. 2 (c) ) is arranged so that it acts on the first switch cam 21-5a and the second switch cam 21-5b at the same timing when the knitting yarn reaches position X shown inFIG. 6 (b) . Thestandard cutter cam 4 is desirably designed wide enough so that it acts on the protrusions of both the first switch cam 21-5a and the second switch cam 21-5b. AlthoughFIG. 2 (c) shows both the first switch cam 21-5a and the second switch cam 21-5b for convenience, in fact, the first switch cam 21-5a is built into the first yarn feed changer 40-1 and the second switch cam 21-5b is built into the second yarn feed changer 40-2. - The stripe pattern knitting apparatus of the present invention can also be installed on a single knit machine.
-
FIG. 4 is a cross section of the core part of a knitting head of a single knit machine, in which theknitting head 32A is established above abed 31A supported by a plurality of legs (not shown). In this drawing,code 33A refers to a needle cylinder. Housed in a needle groove (not shown) formed in the periphery of theneedle cylinder 33A is a vertically slidable cylinder needle (not shown). - Because the machine shown in
FIG. 4 is a single knit machine, it is further equipped with asinker dial 41 and asinker cap 42. Asinker 43, which cooperates with the cylinder needle (not shown), is provided so that it is radially slidable on thesinker dial 41, which is arranged horizontally. Thesinker 43 is controlled by asinker cam 44, which is attached to thesinker cap 42. - The
sinker cap 42 is supported by an annularsinker cap ring 45, which is supported by anintermediate ring 47 via asupport 46. - Above the sinker cap ring 45 a
yarn carrier holder 48 for mounting ayarn carrier 37A that feeds yarn to the knitting needle is established and attached to ayarn carrier ring 47. - Below the
needle cylinder 33A is adriving gear 38A integrally attached thereto. Thedriving gear 38A rotates at the same speed as theneedle cylinder 33A when driven by the driving source installed in the circular knitting machine. - Above the
sinker cap 42, ayarn feed changer 40A is installed. - The
yarn feed changer 40A is provided with a plurality ofyarn feed fingers 14A for guiding a plurality of individual knitting yarns. The yarn feed fingers operate in two steps: first moving downwards, then retreating upwards. Moving selectively between the low position, i.e., the yarn changing position, and the high position, i.e., the normal position, the yarn feed fingers feed the knitting yarns to the knitting needles. - Because the structure and the operation of the
yarn feed changer 40A of Example 2 are about the same as those of the yarn feed changer 40 (40-1, 40-2) of Example 1, the explanation thereof is omitted here.
Claims (7)
- A circular knitting machine for knitting stripe patterns by changing at least two knitting yarns, the circular knitting machine comprising:a first yarn feed changer (40-1) established in a first feeder (F1) and having a plurality of yarn feed fingers (14) that can be selectively moved;a second yarn feed changer (40-2) established in a second feeder (F2) and having a plurality of yarn feed fingers (14) that can be selectively moved;a yarn carrier (37) that is established opposite the second feeder (F2) and can feed a yarn to a knitting needle;a trapper (15) that is designed to move in the circumferential direction along with the rotation of the knitting machine and to catch a yarn provided by the first yarn feed changer (40-1) or the second yarn changer (40-2) and feed the yarn to a knitting needle at the second feeder (F2) via the yarn carrier (37); andyarn cutters (14-1, 14-2) and yarn catchers (14-3) for retaining and cutting an old knitting yarn that ceases to be fed after a new knitting yarn from the first yarn feed changer (40-1) or the second yarn feed changer (40-2) is fed to a knitting needle of the second feeder (F2) and formed into a loop;wherein the yarn cutters (14-1, 14-2) and the yarn catchers (14-3) are designed to operate in such a way that a yarn fed from either of the first yarn feed changer (40-1) or the second yarn feed changer (40-2), as it ceases to be fed and becomes an old yarn after a new knitting yarn from the first or second yarn feed changer (40-1, 40-2) is fed to a knitting needle at the second feeder (F2); is retained and cut at approximately the same position;characterized in that the circular knitting machine comprises a yarn guide (16) established between the first yarn feed changer (40-1) and the second yarn feed changer (40-2), wherein the yarn guide (16) is a plate provided with an indentation and a protrusion on the side facing the outside of the knitting machine, wherein the indentation and protrusion includes a guide plane (16-1) made up of an upward slope and an elevated part, and a retaining part (16-2) which is an indentation provided above said guide plane (16-1), wherein the yarn guide (16) is arranged such that as the trapper (15) moves, a new knitting yarn from the first yarn feed changer (40-1) can be caught by the trapper (15) and rises along the upward slope of the guide plane (16-1) until the yarn reaches the retaining part (16-2), the retaining part (16-2) stably retaining the angle at which the yarn enters the yarn carrier (37).
- A circular knitting machine according to Claim 1, wherein switch cams (21-5a, 21-1b) are employed for opening and closing the yarn cutters (14-1, 14-2) and the yarn catchers (14-3) and wherein the switch cams have protrusions at different positions in the first yarn feed changer (40-1) and the second yarn feed changer (40-2), and wherein two kinds of cutter cams (4-1, 4-2) are provided, one for the first yarn feed changer and the other for the second yarn feed changer, each corresponding to the respective protrusion positions of the switch cams (21-5a, 21-1b).
- A circular knitting machine according to Claim 2, in which the positions of the first cutter cam (4-1) for the first yarn feed changer and the second cutter cam (4-2) for the second yarn feed changer are set so that after new knitting yarns are fed to the knitting needles from the first and second yarn feed changers (40-1, 40-2) and formed into loops, old knitting yarns that cease to be fed are retained and cut at the same position.
- A circular knitting machine according to Claim 2 or 3, in which the distance between the first cutter cam (4-1) and the second cutter cam (4-2) equals the distance between each feeder, and the lower surfaces of the cutter cams (4-1, 4-2) have angles that correspond to the inclinations of the switch cams (21-5a, 21-5b).
- A circular knitting machine according to any of Claims 1 to 4, in which the trapper (15) has a protrusion (15-1) at its lower end.
- A method for knitting stripe patterns characterized by using a circular knitting machine according to any of Claims 1 to 5, having yarn feed changers that change at least two knitting yarns, in which the first feeder (F1) having the first yarn feed changer (40-1) and the second feeder (F2) having the second yarn feed changer (40-2) are used to knit one course, the method comprising:a step in which welt needle selection is performed by the first feeder (F1);a step in which, when a knitting yarn is newly fed to a knitting needle from the first yarn feed changer (40-1), the knitting yarn caught by the trapper (15) rises along the upward slope of the guide plane (16-1) until the yarn reaches the retaining part (16-2), the retaining part (16-2) stably retaining the angle at which the yarn enters the yarn carrier (37); anda step in which, after a new knitting yarn is fed to the knitting needles from the first or second yarn feed changer (40-1, 40-2) and formed into loops, old knitting yarns that cease to be fed are retained and cut at approximately the same position.
- A method according to Claim 6, in which the knitting yarn that was being fed from the first yarn feed changer (40-1) is retained by the yarn catcher (14-3) for the yarn feed fingers (14) of the yarn feed changer and cut by the cutter (14-1, 14-2) after a new knitting yarn passes the stitch point of the second feeder (F2) and overlaps the old knitting yarn at the yarn changing part of the fabric.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007125712A JP2008280641A (en) | 2007-05-10 | 2007-05-10 | Stripe pattern knitting device of feed yarn changeover apparatus and its knitting method |
PCT/JP2008/001114 WO2008139713A1 (en) | 2007-05-10 | 2008-04-28 | Stripe pattern knitting device in feed changer, and method therefor |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2161359A1 EP2161359A1 (en) | 2010-03-10 |
EP2161359A4 EP2161359A4 (en) | 2011-03-16 |
EP2161359B1 true EP2161359B1 (en) | 2015-07-29 |
Family
ID=40001938
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08751639.9A Not-in-force EP2161359B1 (en) | 2007-05-10 | 2008-04-28 | Stripe pattern knitting device in feed changer, and method therefor |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2161359B1 (en) |
JP (1) | JP2008280641A (en) |
KR (1) | KR101470668B1 (en) |
CN (1) | CN101680141B (en) |
TW (1) | TWI444514B (en) |
WO (1) | WO2008139713A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009203566A (en) * | 2008-02-26 | 2009-09-10 | Precision Fukuhara Works Ltd | Yarn feed and guide apparatus in circular knitting machine, and method for knitting using the same |
DE102009040739A1 (en) * | 2009-09-08 | 2011-03-10 | Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh | Method and knitting machine for making knitwear with striped patterns |
EP2374920B1 (en) * | 2010-04-12 | 2014-11-05 | Pai Lung Machinery Mill Co., Ltd. | Circular knitting machine having integrated multiple yarn changing apparatus |
CN107881640B (en) * | 2017-12-14 | 2023-07-04 | 唐山雾谷机电设备有限公司 | Yarn guiding structure of yarn changer |
CN107829205B (en) * | 2017-12-14 | 2023-07-04 | 唐山雾谷机电设备有限公司 | Yarn feeding structure of yarn changer |
CN108411480B (en) * | 2018-04-28 | 2024-01-23 | 黄创能 | Color-changing head structure of knitting machine |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19511949B4 (en) * | 1995-03-31 | 2009-10-15 | Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh | Knitting machine and thread changing device |
JP2005042260A (en) * | 2003-07-24 | 2005-02-17 | Precision Fukuhara Works Ltd | Feed yarn changeover apparatus for circular knitting machine and changeover method |
DE102004032270A1 (en) * | 2004-06-30 | 2006-01-19 | Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh | Knitting machine with at least one striping apparatus |
-
2007
- 2007-05-10 JP JP2007125712A patent/JP2008280641A/en active Pending
-
2008
- 2008-03-04 TW TW097107417A patent/TWI444514B/en not_active IP Right Cessation
- 2008-04-28 KR KR1020097024485A patent/KR101470668B1/en not_active IP Right Cessation
- 2008-04-28 WO PCT/JP2008/001114 patent/WO2008139713A1/en active Application Filing
- 2008-04-28 CN CN2008800154040A patent/CN101680141B/en not_active Expired - Fee Related
- 2008-04-28 EP EP08751639.9A patent/EP2161359B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
EP2161359A1 (en) | 2010-03-10 |
TWI444514B (en) | 2014-07-11 |
CN101680141B (en) | 2012-05-23 |
KR20100017329A (en) | 2010-02-16 |
WO2008139713A1 (en) | 2008-11-20 |
CN101680141A (en) | 2010-03-24 |
JP2008280641A (en) | 2008-11-20 |
KR101470668B1 (en) | 2014-12-08 |
TW200912066A (en) | 2009-03-16 |
EP2161359A4 (en) | 2011-03-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2161359B1 (en) | Stripe pattern knitting device in feed changer, and method therefor | |
US4385507A (en) | Yarn feeding and changing apparatus for circular knitting machines | |
US5070709A (en) | Striping system for circular knitting machine | |
JPH0372740B2 (en) | ||
JP2005042260A (en) | Feed yarn changeover apparatus for circular knitting machine and changeover method | |
US4934161A (en) | Mechanism for adjusting the stitch density in circular knitting machines | |
US5046333A (en) | Yarn changing apparatus for circular knitting machine | |
JPS6025535B2 (en) | Yarn feed switching device for knitting machines | |
US2290058A (en) | Yarn-changing mechanism for knitting machines | |
US5408849A (en) | Flat bed knitting machine | |
US2711090A (en) | Plate and wrap yarn control means and method | |
US4328686A (en) | Auxiliary yarn feed finger and pattern drum sleeve for circular knitting machines and method of knitting therewith | |
EP3956509B1 (en) | A circular knitting machine for manufacturing open-work knitted fabric | |
KR20110074477A (en) | Method for selecting the needles of the dial, in single-cylinder double-bed circular knitting machines, and dial for performing the method | |
EP1524347B1 (en) | Circular type knitting machine for intarsia fabrics | |
EP3956510B1 (en) | Circular knitting machine with sinkers selection and methods of manufacturing knitted fabric using the machine | |
JPH0121988Y2 (en) | ||
CN111826795B (en) | Circular knitting machine for producing terry loops and method for producing terry loops in a circular knitting machine | |
US2773372A (en) | Knitting machine | |
US3681941A (en) | Yarn feeding arrangements for circular knitting machines | |
US20230272566A1 (en) | A shaped sinker for knitting machines, in particular for manufacturing open-work knitted fabrics | |
EP0957193B1 (en) | Lowering sinker actuation cam set for circular knitting machines for forming standard-terry knitting and sandwich-terry knitting | |
JPH07229037A (en) | Apparatus for patterning pile | |
US1942816A (en) | Knitting machine | |
CN111826786A (en) | Method for producing a knitted mesh fabric on a circular knitting machine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20091209 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
|
DAX | Request for extension of the european patent (deleted) | ||
A4 | Supplementary search report drawn up and despatched |
Effective date: 20110216 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: D04B 15/61 20060101ALI20110210BHEP Ipc: D04B 15/60 20060101AFI20081201BHEP |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
INTG | Intention to grant announced |
Effective date: 20150302 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 739367 Country of ref document: AT Kind code of ref document: T Effective date: 20150815 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602008039257 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 739367 Country of ref document: AT Kind code of ref document: T Effective date: 20150729 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20150729 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150729 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150729 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150729 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151030 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151029 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150729 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150729 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151130 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150729 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150729 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150729 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151129 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150729 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150729 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150729 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150729 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150729 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602008039257 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150729 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20160502 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160430 Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150729 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20160428 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150729 Ref country code: LU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160428 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20161230 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160502 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160430 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160430 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160428 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160428 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150729 Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20080428 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150729 Ref country code: MT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160430 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150729 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20190412 Year of fee payment: 12 Ref country code: DE Payment date: 20190318 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: TR Payment date: 20190410 Year of fee payment: 12 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 602008039257 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20201103 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200428 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200428 |