EP3690095A1 - Aiguille du métier à tricoter et système de tricotage - Google Patents

Aiguille du métier à tricoter et système de tricotage Download PDF

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Publication number
EP3690095A1
EP3690095A1 EP19154755.3A EP19154755A EP3690095A1 EP 3690095 A1 EP3690095 A1 EP 3690095A1 EP 19154755 A EP19154755 A EP 19154755A EP 3690095 A1 EP3690095 A1 EP 3690095A1
Authority
EP
European Patent Office
Prior art keywords
shaft
section
knitting machine
hook
predetermined breaking
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
Application number
EP19154755.3A
Other languages
German (de)
English (en)
Other versions
EP3690095B1 (fr
Inventor
Jörg Sauter
Uwe Stingel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Groz Beckert KG
Original Assignee
Groz Beckert KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Groz Beckert KG filed Critical Groz Beckert KG
Priority to EP19154755.3A priority Critical patent/EP3690095B1/fr
Priority to PT191547553T priority patent/PT3690095T/pt
Priority to TW108142710A priority patent/TW202045789A/zh
Priority to CN202080011906.7A priority patent/CN113574218B/zh
Priority to KR1020217014301A priority patent/KR20210122223A/ko
Priority to BR112021005119-8A priority patent/BR112021005119B1/pt
Priority to JP2021523400A priority patent/JP2022519143A/ja
Priority to PCT/EP2020/051356 priority patent/WO2020156875A1/fr
Priority to ARP200100179A priority patent/AR117875A1/es
Publication of EP3690095A1 publication Critical patent/EP3690095A1/fr
Application granted granted Critical
Publication of EP3690095B1 publication Critical patent/EP3690095B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
    • D04B35/02—Knitting tools or instruments not provided for in group D04B15/00 or D04B27/00
    • D04B35/04—Latch needles
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
    • D04B35/02—Knitting tools or instruments not provided for in group D04B15/00 or D04B27/00
    • D04B35/06—Sliding-tongue needles

Definitions

  • Knitting machine needles are known in many different designs. Knitting machine needles are inserted into a knitting machine and are often moved over one or more feet of the knitting machine needle in a channel of a needle bed of the knitting machine. For this purpose, the foot of the knitting machine needle interacts with a lock on the knitting machine. Especially with fast-running knitting machines, the knitting machine needle is subject to strong accelerations. Knitting machine needles with a tongue are often used ("latch needles"). The tongue performs numerous rapid swiveling movements which serve to form stitches together with a hook. The high dynamics of this swiveling movement can lead to errors in stitch formation in high-speed knitting machines. Such errors are promoted by inevitable wear on the hook and tongue.
  • the hook and the tongue are arranged at a front end of the knitting machine needle and connected to the foot of the knitting machine needle via a shaft.
  • throats for strain relief are in many designs of knitting machine needles below or in the immediate vicinity of Find tongue reserve position. These throats are not predetermined breaking points, since the throats are not intended to be broken with any appreciable probability by the force that the yarn exerts on the hook.
  • the DE1635837A1 shows a needle, which is equipped with sections on the shaft, which are intended to prevent the transmission of shock waves from the foot to the hook.
  • These sections can be designed as sections with changed mechanical properties or as sections with a reduction in the needle cross section.
  • the special sections are carried out at points on the shaft at which the shaft has its greatest height. It is therefore not a question of predetermined breaking points, since the shaft is not likely to break at these points.
  • the DE4320956A1 and the DE19503048C2 show predetermined breaking points on sewing or embroidery needles.
  • the object is achieved by a knitting machine needle according to claim 1 and a knitting system according to claim 13.
  • the knitting machine needle according to the invention comprises a hook for forming stitches, which delimits the shaft in the longitudinal direction of the shaft, or begins there, and which ends in a hook tip.
  • a first drive section follows the hook.
  • the force for moving the knitting machine needle is transmitted to the drive section of the knitting machine needle by a lock part of the knitting machine.
  • the drive section can be designed as a foot which projects above the shaft in the positive height direction of the shaft.
  • the drive section can be formed by a coupling point.
  • a coupling element usually has a foot and the force for moving the knitting machine needle acts in a known manner on the coupling point of the knitting machine needle.
  • the knitting machine needle according to the invention can further comprise a tongue.
  • the tongue can be pivoted on the shaft in such a way that in its closed position it closes the interior of the hook and that the tip of the tongue in its reserve position in the longitudinal direction of the shaft at first Drive section has.
  • the tongue can be rotatably mounted on the shaft on pins formed on the shaft, a hinge or an axis.
  • the knitting machine needle according to the invention is characterized by a predetermined breaking section for separating the hook from the first drive section, which is formed by a section of the shaft which extends in the longitudinal direction thereof.
  • a "section" has a more than infinitesimal extension in the longitudinal direction of the needle.
  • the predetermined breaking section is located entirely in a first shaft section, which extends in the longitudinal direction of the shaft between the tip of the hook and the first drive section.
  • a predetermined breaking section has a non-infinitesimal extension in the longitudinal direction of the knitting machine needle.
  • the knitting machine needle breaks with a considerable probability at the predetermined breaking section due to the forces that can be transmitted through the yarn if the movement of the needle in the needle bed is impeded or the stitch fails to be knocked off.
  • the shaft of the knitting machine needle extends over the entire longitudinal extent thereof.
  • the shaft can only be divided into different functional sections.
  • An end section of the shaft forms a hook and has a section adjacent to this hook which can come into contact with a yarn during the knitting process.
  • the shaft further comprises a section (the drive section or foot) via which the movement of the knitting machine needle is initiated.
  • Sections lying between the above-mentioned sections serve, for example, to guide the knitting machine needle (in a needle bed) and connect the above-mentioned functional sections.
  • a predetermined breaking section will advantageously be located in a section of the shaft that serves the functions of guiding and connecting other functional sections.
  • the shaft can have sections of different heights.
  • the sections of the shaft of different heights can merge into one another at transition points.
  • a first transition point can be arranged in the vicinity of the drive section.
  • a second transition point can be arranged near the hook.
  • the second transition point can be double or longitudinal be three times as far from the tip of the hook as the tip of the tongue in the back position of the tongue. The distance of the second transition point from the hook tip can also assume any values between the above values.
  • the knitting machine needle can have a predetermined breaking section which is set up in such a way that the hook can be separated from the first drive section by a force which acts on the hook and is less than 80% of the force at which an identical needle without a predetermined breaking section is permanently deformed.
  • the predetermined breaking section can in particular be set up in such a way that the hook can be separated from the first drive section if a corresponding force acts on the hook in the negative height direction. It is clear to the person skilled in the art that at least the diameter (“the fineness”) of the yarn is related to the breaking strength of the needle and that the breaking strength is certainly also determined by the fineness of the needle. The fineness also determines the maximum diameter of the yarn to be used.
  • the tensile strength of the yarn is certainly also largely dependent on the yarn diameter, so that the overall fineness is a needle characteristic that has a great influence on the design of the predetermined breaking section.
  • the fineness (or "squeeze") of the knitting machine needle can be determined by the thickness of the tape from which the knitting machine needle is punched and can be measured in the width direction of the knitting machine needle. With a needle with a pressure of 0.4 mm, the force at which the hook is separated from the first drive section, depending on the design of the predetermined breaking section, can be approximately from 5N to 1N, while an identical knitting machine needle would be permanently deformed at approximately 8N. "Deformation” stands here in particular as a generic term for "bending".
  • a special test to verify the suitability of a predetermined breaking section could consist of placing the underside of the needle (the side facing away from the foot in its height direction) on a table, sliding the needle on the table with the hook first so far over the edge of the table until the hook-side (front) part of the needle protrudes beyond the edge of the table at least up to the predetermined breaking section. If a defined breaking or bending force is then applied to the hook, the breaking should take place at the predetermined breaking section. If there is a plastic deformation and no breakage as the force increases (for examples see above), the suitability of the needle for the purposes of this publication is to be doubted.
  • the knitting machine needle can have a predetermined breaking section which is located entirely in a second shaft section, the second shaft section being located in Longitudinal direction of the shaft extends between the position of the tongue tip in the reserve position of the tongue and the first drive section.
  • the knitting machine needle can have a predetermined breaking section which is located entirely in a third shaft section, which begins in the longitudinal direction of the knitting machine needle at the point which is spaced two tongue lengths away from the articulation point of the tongue in the direction of the first foot and which is in the longitudinal direction of the knitting machine needle ends at the point which is spaced three tongue lengths from the articulation point of the tongue in the direction of the first drive section, the tongue length being the distance between the articulation point of the tongue and the tongue tip.
  • This articulation or bearing point of the tongue can have a bearing seat in the form of a circular opening in the tongue, into which an axis or a pin engages. The tongue length can be measured from the center of this opening.
  • the tip of the tongue is the point of the tongue furthest away from this center and the distance between these two aforementioned points can represent the length of the tongue.
  • the predetermined breaking section can be located in a fourth or fifth shaft section.
  • a fourth shaft section can extend from the articulation point of the tongue to a second transition point.
  • a fifth shaft section can extend from the position of the tongue tip in the reserve to a second transition point.
  • the predetermined breaking section can be located in a sixth shaft section described below:
  • slide needles have guide means for a slide (a hook closing element) at a distance in the longitudinal direction from the hook tip, which extend in the longitudinal direction on the drive section extend. These guide means do not extend below the tip of the hook. This results in a minimum distance in the longitudinal direction between the hook tip and the guide means.
  • the sixth shaft section can extend from 1.5 times the minimum distance to three times the minimum distance from the tip of the hook.
  • the knitting machine needle can have a distance of at least 75 mm from the hook-side end of the needle in the longitudinal direction of the shaft to the hook-side start of the first drive section or the first foot in the longitudinal direction.
  • the knitting machine needle can have a shaft which has a height (“chest height”) of 0.8 to 1.5 mm in the region in which the tongue is articulated on the shaft, at the highest point in this region. This height is measured in the height direction.
  • the knitting machine needle can have a shaft which in the section in which the predetermined breaking section is arranged has a height which is between 50% and 70% of the chest height.
  • the knitting machine needle can have a shaft which is punched out of a strip material and which in the areas in which its thickness still corresponds to the thickness of the strip material has a thickness to be measured in the width direction of 0.3 to 0.6 mm or to 0.7 mm to have.
  • the knitting machine needle can comprise a predetermined breaking section which has a reduction in the shaft cross section perpendicular to the longitudinal direction. "Vertical to the longitudinal direction" runs in particular the plane that is spanned by the height direction x and the width direction y of the needle.
  • the knitting machine needle can have a predetermined breaking section, which has a reduction in the shaft cross-section, which is achieved by reducing the shaft in the height direction.
  • a predetermined breaking section configured in this way can have the advantage that it can also be attached during a punching process and thus no separate manufacturing process is required.
  • the predetermined breaking section can thus be produced inexpensively.
  • the height of the shaft in the height direction can be reduced from above and / or from below. However, it would also be conceivable to make a recess (or more) in the shaft which does not pass through the top and bottom of the shaft or the predetermined breaking section.
  • the knitting machine needle can have a predetermined breaking section, which has a reduction of at least 10% and a maximum of 60% of the height or the height dimensions of the adjacent shaft or the adjacent shaft sections at the point with a maximum reduced cross section. This leaves 40% to 90% of the cross-sectional area (in a plane transverse to the longitudinal direction of the needle) at the thinnest point of the predetermined breaking section. Especially if there are a plurality of notches that engage the shaft from different directions (e.g. from above and from below), the cross-section or height reduction in question can also be distributed over different subsections of the predetermined breaking section (20% from above, 25% from below).
  • a notch-shaped configuration of the reduced-cross-section points of the predetermined breaking section enables a position which is relatively precisely defined in the longitudinal direction to be obtained for separating the hook from the drive section.
  • the stresses are concentrated at the position of the predetermined breaking section.
  • the width of the needle can of course also be reduced. This can be done in an equivalent way to the measures described above for reducing the height of the shaft dimensions.
  • the knitting machine needle can have a reduction of the shaft in the height direction, which has a triangular shape with an opening angle of 60 ° to 120 °. An opening angle of 90 ° can be particularly advantageous.
  • the three corners created in the shaft can be rounded.
  • a radius of the rounding of at least 0.02 mm is advantageous; in the case of larger reductions in the height direction, the roundings can also advantageously be carried out with radii of 0.35 mm or, for example, 0.4 mm or 0.5 mm.
  • the height reduction can also be trapezoidal, in the form of a step or in another form.
  • throats which, for example, relieve the pressure on the stitches when sliding over the tongue in their back, become clear:
  • Such throats have larger opening angles and a flat profile in order to allow easy entry and exit of the stitch .
  • most predetermined breaking sections are intended to bring about a defined break at a defined point, so that the opening angles of the side flanks are smaller in such a predetermined breaking section.
  • the specific shape, which is advantageous for a predetermined breaking section it is recommended to position such a predetermined breaking section at a point that is not suitable for a stitch relief throat: the stitch relief throat is located at a point over which the stitch slides.
  • the predetermined breaking section could "catch" the stitch due to its shape and thus endanger the knitting process.
  • the knitting machine needle can have a predetermined breaking section, the material of which has a lower elongation at break than sections of the remaining shaft.
  • the behavior of the knitting machine needle in the event of an overload can be specifically controlled by this design of the predetermined breaking section (in addition or as an alternative to a height reduction or similar measures). Different deformations in the plastic area of the material are suppressed in favor of a targeted break if the load for which the knitting machine needle is designed is clearly exceeded.
  • the knitting machine needle is advantageously made of steel. In steel, the elongation at break can be influenced by adjusting the hardness or the structure. In this way, the structure in the predetermined breaking section can be made specifically brittle and / or coarse-grained.
  • needle beds is used in the present publication as a generic term for those parts of knitting systems that use needles in knitting. These are in particular knitting cylinders and dials of circular knitting machines and flat needle beds in flat knitting machines.
  • the DE3311361A1 and the DE102014118217A1 describe measures to be able to further increase the performance of fast-running knitting machines and show examples of typical knitting systems with corresponding knitting machine needles in the figures.
  • the present invention is particularly concerned with the improvement of knitting machine needles and knitting systems suitable for the high performance requirements outlined in these documents.
  • the two publications describe knitting systems with knitting needles which have a very long, thin shaft section between the hook and the first foot. Large parts of this long and thin shaft section are guided laterally (in the width direction of the needle) not by webs of the needle bed, but by sinkers in the relevant needle beds according to the two aforementioned publications. Knitting systems of the aforementioned type realize great knitting performance with high fineness.
  • the content of the two aforementioned documents is hereby at least in relation to the shape of the knitting needles used and Arrangement of knitting needles and sinkers in the relevant knitting systems included in this application.
  • the knitting system according to the invention contains a needle bed with guide means and at least one channel base, which are set up to receive knitting machine needles and to guide and support them in their longitudinal direction during their intermittent movement.
  • Needle beds in the form of cylinders, dials or flat needle beds can be used for flat knitting machines, for example.
  • the knitting machine needles are received in channels by the needle bed and are guided by the channel webs in the width direction of the knitting machine needles and supported by the channel base in the negative height direction of the knitting machine needles.
  • the guidance of the knitting machine needles in the width direction does not necessarily take place over the entire longitudinal extent of the knitting machine needle, but can also take place only in a rear section of the knitting machine needles.
  • the knitting machine needle can, for example, also be guided in the width direction in other sections of its longitudinal extent by other knitting tools (this is the case, for example, with knitting systems according to the documents) DE3311361A1 and the DE102014118217A1 the case). The same applies to the support of the knitting machine needles on the channel base.
  • the knitting system according to the invention also contains at least one lock part for transmitting force to at least a first drive section of a knitting machine needle accommodated in the needle bed.
  • One foot of the knitting machine needle often protrudes from the channel of the needle bed and is received in a web-shaped depression (“lock curve”) in the lock part.
  • a circular knitting machine has a plurality of lock parts, each of which defines a partial section of the distance that a needle foot (a coupling part) travels during a total rotation of the needle cylinder of a circular knitting machine. Due to this relative movement of the knitting machine needle to the lock parts in the width direction of the needle, the lock parts transmit the force to the relevant drive section or needle foot, which moves the needle during the knitting operation in a circular knitting machine in the longitudinal direction of the needle.
  • the knitting system according to the invention is characterized in that at least one of the knitting machine needles has a predetermined breaking section for separating the hook from the first drive section.
  • the predetermined breaking section is formed by a first section of the shaft, which extends in the longitudinal direction thereof.
  • the predetermined breaking section is entirely in the first shaft section, which extends in the longitudinal direction of the shaft between the tip of the hook and the first drive section.
  • the knitting system according to the invention can be designed such that the guide means and the at least one channel base of the needle bed, the at least one lock part and the position of the drive section and the predetermined breaking section on the at least one knitting machine needle are coordinated in such a way that the at least one knitting machine needle in knitting operation is at least temporarily so is driven far out of the guide means that the guide means at least partially no longer support the predetermined breaking section of the at least one knitting machine needle.
  • the predetermined breaking section is at least in the driven-out state of the knitting machine needle above the first lock segment.
  • the high forces can then possibly act via a relatively long lever from the hook to the predetermined breaking section. Since the predetermined breaking section lies approximately at a point at which support of the knitting machine needle driven out by the needle bed begins, there is a very high probability that a very defined break occurs on or in the predetermined breaking section. So here is It is important that the predetermined breaking section is not arranged too far forward in the direction of the hook, because otherwise an undefined breakage can result at the point at which the knitting machine needle is supported by the needle bed due to the leverage effect. If the predetermined breaking section lies completely in the supported area, an undefined break can result at the edge of the needle bed. For example, high forces can occur due to the withdrawal of goods if stitches are not knocked off and accumulate in the hook. Then a pulling force can quickly act on the hook that exceeds the commonly occurring pulling force, for example by a factor of 2 or more.
  • Figure 1 shows a knitting machine needle 1 in an overall view.
  • the illustration is not to scale and details which are not essential to the invention have been omitted.
  • the other figures are also simplified accordingly.
  • a coordinate system is shown which shows the directions defined on the knitting machine needle 1 shows.
  • the longitudinal direction of the knitting machine needle 1 is denoted by z, the width direction by y and the height direction by x.
  • the left end in the longitudinal direction z of the knitting machine needle 1 is the hook 2.
  • the knitting machine needle 1 has a foot 5 (also referred to as drive section 33). The foot 5 projects beyond the knitting machine needle 1 in the positive height direction x.
  • the knitting machine needle 1 extends even further to the right and has one or more additional feet.
  • the shaft 3 of the knitting machine needle 1 extends between the hook 2 and the foot 5.
  • the shaft 3 clearly has a long and slender shape.
  • the length from the hook-side start 20 of the knitting machine needle 1 to the hook-side start 19 of the first foot 5 is approximately 78 mm in the present exemplary embodiment.
  • three sections (10, 11, 13) of the longitudinal extension of the shaft 3 of the knitting machine needle 1 are shown with curved brackets.
  • the first 10 and the second section 11 extend at their right end to the hook-side beginning of the first foot 5.
  • On the shaft 3 there is a predetermined breaking section 9 in the third section 13, which is also included in the first section 10 and the second section 11 appropriate.
  • the hook tip (4) and the hook-side end 20 of the knitting machine needle 1 can be seen in particular.
  • the tongue 6, which is shown in its reserve position 8, is also involved in the stitch formation. In this position, the tip of the tongue 12 reaches a point at which it is directed in the longitudinal direction z at most to the foot 5 (also referred to as drive section 33).
  • the tongue 6 is rotatably attached to the pivot point 14 on the shaft 3.
  • the shaft 3 has a predetermined breaking section 9 which has a notch or recess in which the height of the shaft or the shaft dimensions in the height direction x is reduced from above.
  • the recess in question has a triangular shape with a rounded tip. In the rounded tip, the triangle has an angle ("opening angle") of 90 °.
  • the height of the shaft 3 is reduced by approximately 50% at the location of the smallest remaining cross section.
  • the Figure 3 corresponds essentially to that Figure 2 , only an alternative embodiment of a predetermined breaking section 9 is shown.
  • the size of the reduction in the cross section is less than in the embodiment of FIG Figure 2 .
  • the tip of the resulting recess can be rounded.
  • the corners that arise on the upper edge of the shaft 3 on the left and right on the predetermined breaking section 9 can also be rounded in all the exemplary embodiments.
  • the Figure 4 shows a further embodiment of a knitting machine needle 1 in an overall view.
  • the knitting machine needle 1 largely corresponds to the knitting machine needle 1 Figure 1 , only an alternative embodiment of a predetermined breaking section 9 is shown.
  • a first transition point 28 and a second transition point as well as the fourth section 30 of the shaft 3 and the fifth section 31 of the shaft 3 are indicated with curly brackets.
  • the shaft 3 has a maximum height (dimension in the height direction x) up to the first transition point 28.
  • the height of the shaft 3 is quickly reduced to an average height.
  • the second transition point 29 in the direction of the hook 2 the height of the shaft 3 is reduced again.
  • the fourth section 30 of the shaft 3 extends in the longitudinal direction z of the knitting machine needle 1 from the articulation point 14 of the tongue 6 to the second transition point 29.
  • the fifth section 31 of the shaft 3 extends in the longitudinal direction z of the knitting machine needle 1 from the tip 12 of the Tongue 6 in the reserve position 8 up to the second transition point 29. In both areas, a minimum height of the shaft 3 and thus a suitable position for a predetermined breaking section 9 can be determined.
  • the shaft section between the second transition point 29 and the first drive section 33 has a greater height of the shaft and therefore does not offer an optimal position for a predetermined breaking section 9.
  • the predetermined breaking section 9 is in the enlarged view in the Figure 5 easier to see.
  • the knitting machine needle 1 of Figure 5 differs essentially only in the design of the predetermined breaking section 9 from the knitting machine needle 1 from FIG Figures 2 and 3 .
  • the predetermined breaking section 9 is formed by reducing the height of the shaft 3 in the height direction x from below. Otherwise this reduction "from below” is identical to that in Figure 2 shown reduction "from above”.
  • reductions in the shaft cross section from above, from below or from both sides can advantageously be carried out.
  • reductions in the width direction y can also be used.
  • the side flanks 25, the shape 26 of the height reduction, the dimensions of the shaft height in the zx plane and the opening angle 27 of the height reduction are illustrated.
  • Figure 6 shows an enlarged view of the front region of a knitting machine needle 1, which, except for the embodiment of the predetermined breaking section 9, essentially corresponds to that in FIGS Figures 1 to 5 shown knitting machine needles 1 corresponds.
  • the predetermined breaking section 9 is formed by a section of the shaft 3, the cross section of which is not adapted to form a predetermined breaking section 9. Rather, the hatching of the shaft 3 in the predetermined breaking section 9 symbolizes that the material of the predetermined breaking section 9 has adapted properties and in particular a lower elongation at break than neighboring regions 23, 24 of the shaft 3.
  • Such an adaptation of the material properties in the predetermined breaking section 9 can be used advantageously for all exemplary embodiments of the invention alternatively or in combination with other measures such as, for example, cross-sectional reductions.
  • Figure 7 corresponds essentially to that Figure 2 .
  • the tongue 6 is shown for clarity in its two extreme positions.
  • the tongue is shown both in its closed position 7 and in its reserve position 8.
  • the adjacent areas of the predetermined breaking section 23, 24 are also illustrated.
  • Figure 8 shows a section through a channel of the needle bed 16 of a knitting system 15 according to the invention.
  • the cutting line lies in the width direction y immediately in front of the side wall of the needle 1 (and parallel to it).
  • the knitting system 15 is similar to that in the publications DE3311361A1 and DE102014118217A1 knitting systems shown, the representation is not to scale and essential for the knitting process Components - such as other knitting tools (especially blanks here) - have been omitted.
  • the sinkers not shown, guide the knitting needle 1 in its width direction y in the regions which come in front of the channel walls 17 in the longitudinal direction z of the needles 1.
  • the circuit board adjacent to the needle 1 would therefore normally be partially visible behind the needle 1.
  • the knitting machine needle 1 is guided in two dimensions by guide means 17 of the needle bed 16. In the height direction x, the knitting machine needle 1 is supported by the channel base 32 of the needle bed 16. The knitting machine needle 1 is guided by two channel walls 17 in the width direction y. In the representation of the Figure 8 only one channel wall 17 of the needle bed 16 is shown, which guides the knitting machine needle 1 in its rear region, in which the foot 5 is also located, in the width direction y (the boards which take over this in the front region are omitted as mentioned). The foot 5 of the knitting machine needle 1 engages in the lock part 18 shown in section.
  • the knitting machine needle 1 In the front region of the needle 1, in particular from the hook 2 to the predetermined breaking section 9, the knitting machine needle 1 is not supported by the needle bed 16 in the height direction x in its position shown in the needle bed 16.
  • the situation shown arises in the case of knitting systems 15 according to the invention at least when the knitting machine needle 1 is driven to the maximum in the knitting mode.
  • a predetermined breaking In a driven position of the needle 1, in which the needle bed 16 or other knitting machine parts no longer ensure a supporting function for the predetermined breaking section 9 or at least large parts of the hook-side part of the needle in front of it, a predetermined breaking is particularly probable. This is all the more true since, in the load position shown by a force F, a predetermined breaking by "kinking" the front part of the needle 1 with the hook 2 is very likely.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
EP19154755.3A 2019-01-31 2019-01-31 Aiguille du métier à tricoter et système de tricotage Active EP3690095B1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
EP19154755.3A EP3690095B1 (fr) 2019-01-31 2019-01-31 Aiguille du métier à tricoter et système de tricotage
PT191547553T PT3690095T (pt) 2019-01-31 2019-01-31 Agulha de máquina de tricotar e sistema de tricotagem
TW108142710A TW202045789A (zh) 2019-01-31 2019-11-25 針織機織針及針織系統
KR1020217014301A KR20210122223A (ko) 2019-01-31 2020-01-21 편직기 바늘 및 편직 시스템
CN202080011906.7A CN113574218B (zh) 2019-01-31 2020-01-21 针织机针和针织系统
BR112021005119-8A BR112021005119B1 (pt) 2019-01-31 2020-01-21 Agulha de máquina de tricotar e sistema de tricotagem
JP2021523400A JP2022519143A (ja) 2019-01-31 2020-01-21 編み機用針及び編み物システム
PCT/EP2020/051356 WO2020156875A1 (fr) 2019-01-31 2020-01-21 Aiguille pour machine à tricoter et système de tricotage
ARP200100179A AR117875A1 (es) 2019-01-31 2020-01-24 Aguja de máquina de tejer y sistema de tejido

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19154755.3A EP3690095B1 (fr) 2019-01-31 2019-01-31 Aiguille du métier à tricoter et système de tricotage

Publications (2)

Publication Number Publication Date
EP3690095A1 true EP3690095A1 (fr) 2020-08-05
EP3690095B1 EP3690095B1 (fr) 2022-05-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19154755.3A Active EP3690095B1 (fr) 2019-01-31 2019-01-31 Aiguille du métier à tricoter et système de tricotage

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EP (1) EP3690095B1 (fr)
JP (1) JP2022519143A (fr)
KR (1) KR20210122223A (fr)
CN (1) CN113574218B (fr)
AR (1) AR117875A1 (fr)
BR (1) BR112021005119B1 (fr)
PT (1) PT3690095T (fr)
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US664808A (en) * 1899-12-13 1900-12-25 Dodge Needle Company Knitting-machine needle.
US3417580A (en) * 1965-12-28 1968-12-24 Forsch Textil Technologie Method of making textile fabric on sewing-knitting machines
DE1635837A1 (de) 1966-09-02 1970-01-15 Lebocey & Cie Georges Nadel fuer Strickmaschinen
DE3311361A1 (de) 1983-03-29 1984-10-04 SIPRA Patententwicklungs- und Beteiligungsgesellschaft mbH, 7470 Albstadt Strickmaschine zur herstellung von maschenware
JPS62191888U (fr) 1986-05-21 1987-12-05
DE4320956A1 (de) 1993-06-24 1995-01-12 Johannes Prof Dr Rer N Gartzen Verfahren zur Herstellung einer Sollbruchstelle an einer Maschinennadel
DE19503048C2 (de) 1995-02-01 1999-09-23 Groz Beckert Kg Nadel, insbesondere für Großstickmaschinen
CN2534208Y (zh) 2002-01-25 2003-02-05 萧世贤 一种带有折纹的织针
EP1424416A1 (fr) 2002-11-26 2004-06-02 Groz-Beckert KG Jeu d'aiguilles
DE102014118217A1 (de) 2014-12-09 2016-07-07 Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh Rundstrickmaschine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10333172B4 (de) * 2003-07-22 2006-01-19 Groz-Beckert Kg Strickmaschinennadel
JP2010013787A (ja) * 2008-06-03 2010-01-21 Tokyo Metropolitan Industrial Technology Research Institute 編針及びその製造方法
PT2540889T (pt) * 2010-07-06 2016-09-19 Groz Beckert Kg Sistema de tricotagem com canais de guiamento achatados
PT2927360T (pt) * 2014-04-03 2017-04-20 Groz Beckert Kg Ferramenta de tricotar para máquinas de tricotar

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US664808A (en) * 1899-12-13 1900-12-25 Dodge Needle Company Knitting-machine needle.
US3417580A (en) * 1965-12-28 1968-12-24 Forsch Textil Technologie Method of making textile fabric on sewing-knitting machines
DE1635837A1 (de) 1966-09-02 1970-01-15 Lebocey & Cie Georges Nadel fuer Strickmaschinen
DE3311361A1 (de) 1983-03-29 1984-10-04 SIPRA Patententwicklungs- und Beteiligungsgesellschaft mbH, 7470 Albstadt Strickmaschine zur herstellung von maschenware
JPS62191888U (fr) 1986-05-21 1987-12-05
DE4320956A1 (de) 1993-06-24 1995-01-12 Johannes Prof Dr Rer N Gartzen Verfahren zur Herstellung einer Sollbruchstelle an einer Maschinennadel
DE19503048C2 (de) 1995-02-01 1999-09-23 Groz Beckert Kg Nadel, insbesondere für Großstickmaschinen
CN2534208Y (zh) 2002-01-25 2003-02-05 萧世贤 一种带有折纹的织针
EP1424416A1 (fr) 2002-11-26 2004-06-02 Groz-Beckert KG Jeu d'aiguilles
DE102014118217A1 (de) 2014-12-09 2016-07-07 Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh Rundstrickmaschine

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CN113574218B (zh) 2023-07-04
PT3690095T (pt) 2022-06-27
KR20210122223A (ko) 2021-10-08
EP3690095B1 (fr) 2022-05-18
BR112021005119B1 (pt) 2023-05-02
AR117875A1 (es) 2021-09-01
WO2020156875A1 (fr) 2020-08-06
TW202045789A (zh) 2020-12-16
BR112021005119A2 (pt) 2021-06-15
CN113574218A (zh) 2021-10-29
JP2022519143A (ja) 2022-03-22

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