EP2186933A1 - Verfahren zur herstellung einer maschenware sowie flachstrickmaschine - Google Patents
Verfahren zur herstellung einer maschenware sowie flachstrickmaschine Download PDFInfo
- Publication number
- EP2186933A1 EP2186933A1 EP08790231A EP08790231A EP2186933A1 EP 2186933 A1 EP2186933 A1 EP 2186933A1 EP 08790231 A EP08790231 A EP 08790231A EP 08790231 A EP08790231 A EP 08790231A EP 2186933 A1 EP2186933 A1 EP 2186933A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- needle
- needle bed
- slider
- yarn
- main body
- 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.)
- Granted
Links
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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
- D04B15/56—Thread guides for flat-bed knitting machines
-
- 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
- D04B15/94—Driving-gear not otherwise provided for
- D04B15/96—Driving-gear not otherwise provided for in flat-bed knitting machines
Definitions
- the present invention relates to a method of knitting a knitted fabric and a flat knitting machine capable of preventing a decorative portion of a fancy yarn from being caught at a slider of a compound needle.
- a flat knitting machine that uses a compound needle, which includes a needle main body with a hook and a slider for opening and closing the hook is conventionally known (e.g., Patent Document 1).
- a knitted fabric is knitted by advancing the compound needle from needle beds, which oppose each other with a needle bed gap portion in between, to the needle bed gap portion, and hooking a knitting yarn fed by a yarn feeding member from above the needle bed gap portion to the hook of the compound needle and pulling the yarn into the needle bed.
- the slider closes the hook with the retreating of the needle main body.
- a fancy yarn such as a loop yarn or a knot yarn is sometimes used for the knitting yarn in the flat knitting machine.
- the fancy yarn has a decorative portion, which configures the loop or the knot, projecting out in a raised form at the outer periphery.
- the decorative portion may be caught at the slider when the needle main body is retreated with the fancy yarn positioned on the inner side of the hook.
- the decorative portion is caught at the slider, the fancy yarn at the caught area becomes damaged, and the knitted fabric to be knitted may become damaged.
- the extent of advancement to the needle bed gap portion side differs for the compound needle (open needle) that attempts to close the hook with the decorative portion caught, and the preceding compound needle (close needle), adjacent to the former compound needle, that has already closed the hook and pulled the fancy yarn to the needle bed side.
- the slider of the open needle is pulled towards the close needle side through the fancy yarn, and the slider of the open needle may bend or break.
- a method of knitting a knitted fabric of the present invention is a method of knitting a knitted fabric using a flat knitting machine including a plurality of compound needles, each including a needle main body with a hook and a slider for opening and closing the hook; a needle bed, in which the compound needles are arranged in a line, for holding each compound needle to freely advance and retreat in a longitudinal direction of the needle; and a yarn feeding member for feeding a fancy yarn, which has a decorative portion projecting out at an outer periphery of a core yarn, to a needle bed gap portion of the needle bed by reciprocating in a longitudinal direction of the needle bed, the knitting being performed by hooking the fancy yarn fed from the yarn feeding member to the needle bed gap portion to the hook of the needle main body advanced to the needle bed gap portion, and pulling the needle main body into the needle bed.
- the knitting is performed with the decorative portion pushed in a direction of separating from the slider by injecting air so that the decorative portion of the fed fancy yarn is not caught at the slider when the needle main body is pulled into the needle bed and the hook is closed by the slider.
- a flat knitting machine of the present invention is a flat knitting machine including a plurality of compound needles, each including a needle main body with a hook and a slider for opening and closing the hook; a needle bed, in which the compound needles are arranged in a line, for holding each compound needle to freely advance and retreat in a longitudinal direction of the needle; and a yarn feeding member for feeding a fancy yarn, which has a decorative portion projecting out at an outer periphery of a core yarn, to a needle bed gap portion of the needle bed by reciprocating in a longitudinal direction of the needle bed, the flat knitting machine performing the operation of hooking the fancy yarn fed from the yarn feeding member to the needle bed gap portion to the hook of the needle main body advanced to the needle bed gap portion, and pulling the needle main body into the needle bed.
- the flat knitting machine includes an air nozzle for pushing the decorative portion in a direction of separating from the slider by injecting air at an elevation of higher than or equal to a horizontal so that the decorative portion of the fed fancy yarn is not caught at the slider when the needle main body is pulled into the needle bed and the hook is closed by the slider.
- the flat knitting machine also includes a nozzle movement mechanism for reciprocating the air nozzle along the longitudinal direction of the needle bed.
- the nozzle movement mechanism is a carriage for advancing and retreating the compound needle by reciprocating in the longitudinal direction of the needle bed.
- the nozzle movement mechanism is a nozzle carrier that moves along a rail supporting the yarn feeding member.
- the decorative portion is effectively prevented from being caught at the slider since the decorative portion of the fancy yarn is pushed in the direction of separating from the slider by air injection.
- the damaging of the knitted fabric and the damaging of the slider that occurred when the yarn is caught in the related art thus can be avoided.
- the decorative portion is effectively prevented from being caught at the slider for reasons similar to the method of knitting the knitted fabric of the present invention.
- the air can be easily injected to areas where the decorative portion is likely to be caught in accordance with the knitting operation of the compound needle arranged in the needle bed by having the nozzle movement mechanism as the carriage.
- the nozzle can be easily moved in conjunction with the yarn feeding member by having the nozzle movement mechanism as the nozzle carrier that moves along a rail supporting the yarn feeding member and the air can be easily injected to areas where the decorative portion is likely to be caught in accordance with the knitting operation of the compound needle.
- a flat knitting machine of the present embodiment includes a pair of needle beds 1F, 1B in which a plurality of compound needles 10 is arranged in a line; a yarn feeding member 3 for feeding a fancy yarn Y to a needle bed gap portion 2; an air nozzle 4 for holding down a decorative portion Y1 projecting out at the outer periphery of the fancy yarn Y by injecting air; and a carriage 5 that reciprocates in a longitudinal direction of the needle beds 1F, 1B.
- Each configuration of the flat knitting machine of the present embodiment will be described in detail below based on Figs. 1 and 2 .
- the compound needle 10 includes a needle main body 11 and a slider 12.
- the needle main body 11 has a hook 11A at the distal end portion
- the slider 12 is, for example, a thin plate, two of which form a set, fitted into a groove of the needle main body 11.
- the hook 11A arranged at the distal end portion of the needle main body 11 opens and closes when the needle main body 11 and the slider 12 relatively slide in the longitudinal direction. Specifically, the hook 11A closes when the distal end portion of the slider 12 clamps both sides of the hook 11A of the needle main body 11 by the relative slide of the needle main body 11 and the slider 12. On the contrary, the hook 11A opens when the slider 12 separates from the hook 11A.
- the compound needle 10 is arranged in a line with a predetermined spacing in the longitudinal direction of the needle bed, and knits the knitted fabric by pulling the fancy yarn Y fed to the needle gap portion 2 to the needle bed 1F, 1B side by advancing and retreating to the needle bed gap portion 2 through the action of the knitting cam system of the carriage 5 ( Fig. 1 ).
- a known configuration can be used for the carriage 5 and a needle selecting mechanism to advance and retreat the compound needle 10.
- the yarn feeding member 3 of the flat knitting machine is a member for feeding the fancy yarn Y from a yarn feeder arranged at the distal end portion thereof to the needle bed gap portion 2.
- Each yarn feeding member 3 is slidably attached to a rail (not shown) extending in a direction perpendicular to the plane of drawing of Fig. 1 .
- the yarn feeding member 3 is configured to be entrained by the carriage 5 to reciprocate in the longitudinal direction of the needle beds 1F, 1B in conjunction with the reciprocating movement of the carriage 5.
- the air nozzle 4 is fixed to the carriage 5.
- the air injected from the air nozzle 4 needs to be supplied to a predetermined region where the compound needle 10 is performing the knitting operation.
- the air can be easily injected to the predetermined region where the compound needle 10 is performing the knitting operation if the air nozzle 4 is fixed to the carriage 5 since the air nozzle 4 moves in conjunction with the carriage 5. That is, the carriage 5 serves both as a drive mechanism of the compound needle 10 and as a nozzle movement mechanism of the air nozzle 4.
- One air nozzle of a pipe-shape is used for the air nozzle 4 in the present embodiment, but that in which a plurality of pipes is lined or that having a flat shape with a slit-shaped opening may be used.
- such an air nozzle 4 is horizontally arranged substantially towards the distal end portion of the yarn feeding member 3. More specifically, as shown in Fig. 2 , the air nozzle 4 is arranged to inject air to the yarn feeding region of the compound needles 10 (open needles 10A to 10E), which hooks 11A are opened, on the back side (downstream side) with respect to the movement direction of the yarn feeding member 3.
- Fig. 2 shows a state in which the yarn feeding member 3 moves to the right side and the knitting of the knitted fabric proceeds from the left side to the right side, where the decorative portion Y1 of the fancy yarn Y is shown in a loop-form. If the air is not injected, the yarn feeding path from the yarn feeding member 3 to the compound needle 10 (close needle 10F) retreated more than the movement track of the yarn feeding member with the fancy yarn Y hooked to the hook becomes linear, as shown with a chain dashed line.
- one of the decorative portions Y1 may face the slider 12 side since the decorative portions Y1 are radially projected at the outer periphery of the fancy yarn Y, and the decorative portion Y1 may be caught at the slider 12 if the hooks of the open needles 10A to 10E are closed in such a state.
- the air nozzle 4 arranged to face the yarn feeding regions of the open needles 10A to 10E, in particular, the yarn feeding region of the open needle 10E adjacent to the close needle 10F, the fancy yarn Y will be pushed away in the direction of separating from the slider 12, and the yarn feeding path from the yarn feeding member 3 to the close needle 10F becomes nonlinear.
- the decorative portions Y1 of the fancy yarn positioned before the close needle 10F at the downstream of the yarn feeding member 3 are also pushed away in the direction of separating from the slider 12 since the air injecting region is spread.
- the decorative portion Y1 will not be caught at the slider 12 when retreating the needle main body 11 of the open needle 10E from the needle bed gap portion and closing the hook 11A.
- Fig. 1 only the configuration in which air is injected to the yarn feeding region of the compound needle of one needle bed 1F of the pair of needle beds 1F, 1B is shown with a solid line for the sake of convenience of the explanation, but the air nozzle 4 is also mounted on the carriage 5 of the other needle bed 1B so as to be point symmetric with respect to the intersection of the diagonal lines when both carriages 5 are seen in plane view.
- the installing direction of the nozzle 4 is determined such that the air injecting direction becomes an elevation including the horizontal direction. More specifically, an angle between the installation angle of the needle bed 1F, 1B (normally, between 40 and 45° with respect to horizontal direction) and the horizontal direction is suitable. With such an angle, the decorative portion Y1 of the fancy yarn can be easily pushed in the direction of separating from the slider 12. If the air is injected in the depression direction, it is difficult to reliably prevent the decorative portion Y1 from being caught at the slider 12 since the decorative portion Y1 of the fancy yarn fed from the yarn feeding member 3 is pushed towards the slider 12 side. In the example shown in Fig. 1 , the direction is a horizontal direction.
- the air injecting strength merely needs to be such that an extent of pushing away the decorative portion Y1 in the direction of separating from the slider 12 is ensured. Even if strongly injected to an extent of changing the yarn feeding path of the fancy yarn Y itself, problems do not arise in proceeding the knitting since the fancy yarn Y is pushed against the inner side of the hook 11A.
- the air may be, in theory, continuously injected on a steady basis during the knitting operation. However, since injecting air on a steady basis is a waste of energy, the injection may be stopped during the course, in which the knitting of hooking the fancy yarn Y to the hook 11A is not involved.
- the air may be discontinued, for example, by extracting the timing the course in which the knitting of hooking the fancy yarn Y to the hook 11A is not involved occurs from the knitting program of the knitted fabric set in advance, and controlling an air discontinuing means such as an electromagnetic valve in synchronization with such a timing.
- the air is suitably ejected after the air ejection amount stabilizes to a constant.
- An air source such as a compressor is used to inject air from the air nozzle 4.
- a compressor is arranged for a dust cleaner, and air is supplied from the compressor through a hose. Therefore, it is suitable to use the compressor for the air source of the air nozzle 4. Needless to say, other compressors may obviously be used.
- the decorative portion of the fancy yarn fed from the yarn feeding member can be pushed in the direction of separating from the slider, so that the decorative portion is prevented from being caught at the slider when the needle main body is pulled into the needle bed.
- the problems that arise when the decorative portion is caught at the slider that is, the damage of the knitted fabric and the deformation of the slider can be avoided.
- FIG. 3 An embodiment of the present invention in which an air nozzle is arranged in place of some yarn feeding members will now be described based on Fig. 3 .
- This embodiment is similar to the first embodiment in basic configuration and function, but differs from the first embodiment in the configuration and the installing area of the air nozzle. The difference with the first embodiment will be centrally described below.
- the yarn feeding member 3 is slidably supported by a plurality of rails (not shown) extending in the longitudinal direction of the needle bed at substantially the upper side of the needle bed gap portion 2.
- the rails are lined in a direction orthogonal to the longitudinal direction of the needle beds 1F, 1B, where a nozzle carrier 6 is held using the rails positioned at the ends in the lined direction, and the yarn feeding members 3 are held by the remaining rails. If the air nozzle 4 is supported using the rails at the ends in the lined direction, the air can be act on the fancy yarn Y fed from either yarn feeding member 3 (only one is illustrated herein).
- the nozzle carrier 6 may be configured to be entrained by the carriage, or may be configured to be self-propelled.
- the nozzle carrier 6 has a different distal end shape from the yarn feeding member 3, and reciprocates along the rail while holding the air nozzle 4 at the end. In other words, the nozzle carrier 6 can be operated in conjunction with the yarn feeding member 3.
- the air nozzle 4 held by the nozzle carrier 6 is also one pipe in the present embodiment. However, this nozzle 4 has a configuration in which the distal ends of the pipe are sealed and an ejection hole 41 of the air is formed at the side of the pipe. With the nozzle 4 of such a configuration, the air can be injected horizontally while extending the nozzle 4 downward from the upper side of the needle beds 1F, 1B through the nozzle carrier 6.
- the air nozzle of the present embodiment also ejects air to the yarn feeding region of the compound needles, which hooks are opened, at the downstream of the yarn feeding member.
- the decorative portion of the fancy yarn is thus pushed in the direction of separating from the slider, thereby preventing the decorative portion from being caught at the slider.
- the compound needle used in the present invention merely needs to have a configuration of including the needle main body and the slider, and in which the hook arranged at the distal end of the needle main body is opened and closed by the slider that slides in the longitudinal direction of the needle main body.
- the compound needle described with reference to the drawings is a so-called slideneedle (registered trademark of Shima Seiki Mfg., Ltd.) in which the hook of the needle main body is clamped with two sliders with respect to one needle main body.
- a type in which one slider is provided with respect to one needle main body may be used for the compound needle.
- the flat knitting machine described in the embodiments is a two-bed flat knitting machine including a pair of needle beds disposed opposite to each other, but may be a flat knitting machine including one needle bed.
- a four-bed flat knitting machine in which a pair of opposing needle beds is arranged above a pair of opposing needle beds may also be used.
- the yarn feeding member described in the embodiment is configured to be entrained by the carriage, but the yarn feeding member itself may be a self-propelling type. Furthermore, the yarn feeding member is in plurals in the embodiments, but may be singular.
- a loop yarn in which a loop (decorative portion) is formed by wrapping a decorative yarn around the outer periphery of a core yarn is used for the fancy yarn, but obviously, other fancy yarns may be used.
- the fancy yarn other than the loop yarn includes a knot yarn in which a ball-shaped knot (decorative portion) is formed in places by wrapping the decorative yarn around the outer periphery of the core yarn.
- the decorative portion is prevented from being caught at the slider for the general fancy yarn having the projecting decorative portion at the outer peripheral side of the core yarn.
- the flat knitting machine of the present invention has a configuration of using a carriage for advancing and retreating the compound needle and entraining the yarn feeding member in knitting, but may have a carriage-less configuration of driving a plurality of compound needles and a plurality of yarn feeding members with an individual drive mechanism.
- the method of knitting the knitted fabric and the flat knitting machine of the present invention can be suitably used in knitting of a knitted fabric using a fancy yarn.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
- Knitting Of Fabric (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007197930 | 2007-07-30 | ||
PCT/JP2008/001929 WO2009016803A1 (ja) | 2007-07-30 | 2008-07-18 | 編地の編成方法および横編機 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2186933A1 true EP2186933A1 (de) | 2010-05-19 |
EP2186933A4 EP2186933A4 (de) | 2014-04-16 |
EP2186933B1 EP2186933B1 (de) | 2015-05-13 |
Family
ID=40304047
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20080790231 Not-in-force EP2186933B1 (de) | 2007-07-30 | 2008-07-18 | Verfahren zur herstellung einer maschenware sowie flachstrickmaschine |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2186933B1 (de) |
JP (1) | JP4237821B1 (de) |
CN (1) | CN101778970B (de) |
WO (1) | WO2009016803A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110184728A (zh) * | 2019-05-20 | 2019-08-30 | 斓帛针织科技(嘉兴)有限公司 | 一种具有烂花效果的针织物及其编织方法 |
DE102019112004A1 (de) * | 2019-05-08 | 2020-11-12 | Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh | Verfahren zur Trennung von mehreren Fäden in Haken von Stricknadeln |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011118038A1 (ja) * | 2010-03-26 | 2011-09-29 | 株式会社島精機製作所 | 複合針、および横編機 |
JP6280991B2 (ja) * | 2014-10-17 | 2018-02-14 | 株式会社島精機製作所 | 編地の編成方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3599446A (en) * | 1969-03-21 | 1971-08-17 | Reid Meredith Inc | Terry knit fabric, machine and method of producing same |
US4790150A (en) * | 1987-01-22 | 1988-12-13 | H. Stoll Gmbh & Co. | Flat knitting machine |
DE3734504A1 (de) * | 1987-10-12 | 1989-04-27 | Alois Porkert | Flachstrickautomat |
WO2007037285A1 (ja) * | 2005-09-28 | 2007-04-05 | Shima Seiki Manufacturing Limited | 可動ヤーンガイドを備える横編機 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3333304B2 (ja) * | 1994-03-18 | 2002-10-15 | 株式会社島精機製作所 | 可動糸ガイド部材を備えた横編機 |
-
2008
- 2008-07-18 EP EP20080790231 patent/EP2186933B1/de not_active Not-in-force
- 2008-07-18 JP JP2008548897A patent/JP4237821B1/ja not_active Expired - Fee Related
- 2008-07-18 WO PCT/JP2008/001929 patent/WO2009016803A1/ja active Application Filing
- 2008-07-18 CN CN200880025528.7A patent/CN101778970B/zh not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3599446A (en) * | 1969-03-21 | 1971-08-17 | Reid Meredith Inc | Terry knit fabric, machine and method of producing same |
US4790150A (en) * | 1987-01-22 | 1988-12-13 | H. Stoll Gmbh & Co. | Flat knitting machine |
DE3734504A1 (de) * | 1987-10-12 | 1989-04-27 | Alois Porkert | Flachstrickautomat |
WO2007037285A1 (ja) * | 2005-09-28 | 2007-04-05 | Shima Seiki Manufacturing Limited | 可動ヤーンガイドを備える横編機 |
Non-Patent Citations (1)
Title |
---|
See also references of WO2009016803A1 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019112004A1 (de) * | 2019-05-08 | 2020-11-12 | Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh | Verfahren zur Trennung von mehreren Fäden in Haken von Stricknadeln |
CN110184728A (zh) * | 2019-05-20 | 2019-08-30 | 斓帛针织科技(嘉兴)有限公司 | 一种具有烂花效果的针织物及其编织方法 |
CN110184728B (zh) * | 2019-05-20 | 2020-08-04 | 斓帛针织科技(嘉兴)有限公司 | 一种具有烂花效果的针织物及其编织方法 |
Also Published As
Publication number | Publication date |
---|---|
JP4237821B1 (ja) | 2009-03-11 |
EP2186933B1 (de) | 2015-05-13 |
CN101778970B (zh) | 2011-04-20 |
EP2186933A4 (de) | 2014-04-16 |
CN101778970A (zh) | 2010-07-14 |
WO2009016803A1 (ja) | 2009-02-05 |
JPWO2009016803A1 (ja) | 2010-10-14 |
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