EP4095297B1 - Platine, dispositif de tricotage et procédé de tricotage destinés à la production de produits en maille - Google Patents

Platine, dispositif de tricotage et procédé de tricotage destinés à la production de produits en maille Download PDF

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Publication number
EP4095297B1
EP4095297B1 EP21175764.6A EP21175764A EP4095297B1 EP 4095297 B1 EP4095297 B1 EP 4095297B1 EP 21175764 A EP21175764 A EP 21175764A EP 4095297 B1 EP4095297 B1 EP 4095297B1
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EP
European Patent Office
Prior art keywords
sinker
knitting
longitudinal direction
sub
loop
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EP21175764.6A
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German (de)
English (en)
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EP4095297A1 (fr
Inventor
Uwe Stingel
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Groz Beckert KG
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Groz Beckert KG
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Priority to EP21175764.6A priority Critical patent/EP4095297B1/fr
Priority to PT211757646T priority patent/PT4095297T/pt
Priority to TW111115677A priority patent/TW202300745A/zh
Priority to JP2023572964A priority patent/JP2024519163A/ja
Priority to CN202280037073.0A priority patent/CN117355641A/zh
Priority to PCT/EP2022/061075 priority patent/WO2022248143A1/fr
Priority to KR1020237042162A priority patent/KR20240012419A/ko
Publication of EP4095297A1 publication Critical patent/EP4095297A1/fr
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Publication of EP4095297B1 publication Critical patent/EP4095297B1/fr
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    • 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
    • D04B15/06—Sinkers
    • 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
    • D04B15/18—Dials
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
    • D04B27/04—Sinkers
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/06—Circular knitting machines with independently-movable needles with needle cylinder and dial for ribbed goods

Definitions

  • Sinkers for use in knitting devices or in knitting machines have been known for many decades.
  • knitting devices usually have a large number of needles, at least one needle carrier—usually a knitting cylinder—and at least one sinker carrier.
  • the sinkers for use in knitting machines have stitch-forming means that are connected to the yarn during knitting.
  • a knock-over edge and a hold-down edge are examples of such knitting means.
  • the sinkers in knitting machines usually fulfill two main tasks: on the one hand, they serve to shape the stitch length with their knock-over edge when the needles move into their lowest (retracted) position - the knock-over position - and on the other hand they hold the knitwear produced with their hold-down edge down as the needles move to their highest (extended) position - the hold down position.
  • each sinker performs a sinker movement in its sinker longitudinal direction, which is coordinated with the needle movements.
  • the needle movements run in the longitudinal direction of the needle, which is usually perpendicular to the longitudinal direction of the sinker.
  • the direction of the needle movements can also enclose an angle that is smaller or larger than 90 degrees with the longitudinal direction of the sinker.
  • the circuit boards are usually accommodated in grooves which are arranged on the upper side of the needle carrier and the top side of the circuit board carrier and run in the longitudinal direction of the circuit board. Those grooves are usually spaced apart from each other in the board width direction by groove walls.
  • the forces acting in the direction of the sinker height and the increased wear result in fluctuations in the position of the sinkers in the direction of the sinker height, which can lead to irregularities in the knitted fabric produced.
  • the irregularities are often recognizable by stripes in the knitted fabric - the sinker stripes.
  • conventional sinkers which have both a hold-down edge and a knock-over edge
  • the knitted fabric produced is pulled off over the knock-over edge of the sinker in the vertical direction of the sinker with an adjustable pull-off force.
  • a force pointing downwards in the direction of the height of the sinker acts on the sinkers, which counteracts the movements of the sinker in the direction of the height of the sinker.
  • knitting devices which, via an additional device, can change the direction of take-off of the knitted fabric and thus also the force exerted downwards by the knitted fabric on the sinker by the fabric take-off.
  • An example of such a device is a material removal ring, the height of which can be adjusted in order to change the direction in which the fabric is drawn off.
  • the DE10015730A1 shows a sinker and a knitting machine that works according to relative technology.
  • the sinker has a hold-down edge for holding down stitches and is guided on a carrier of a knitting device. It is obvious to a person skilled in the art that the ejection movement of the knitting needles runs exactly in the opposite direction to their withdrawal movement. It is therefore also obvious that previously formed stitches are held down on the hold-down edge of the sinker during the ejection of the knitting needles and that a stitch-forming force acts on the hold-down edge, which is perpendicular to the hold-down edge - in the present case the effective direction of the stitch-forming force corresponds to the direction of the ejection movement.
  • the sinker has a spring which, through cooperation with the carrier, exerts a force on the sinker which acts perpendicularly to the ejection movement of the knitting needles.
  • the force exerted on the circuit board is intended to compensate for manufacturing tolerances and to ensure that the circuit board rests securely on the carrier when the circuit board is moved from its locked position into its knock-off position.
  • Such a sinker can be deflected in the knitting process in the effective direction of the stitch-forming force and thus make unwanted movements that lead to sinker stripes in the knitted fabric produced.
  • the EP1247887A1 shows a similar sinker for a flat knitting machine.
  • the sinker has a holding-down edge, on which stitch-forming forces acting transversely to the holding-down edge act during the knitting operation when the knitting needle is driven out.
  • the stitch-forming forces act in the longitudinal direction of the sinker.
  • the board can be preloaded with a spring in the vertical direction of the board in order to pivot the front end of the board pointing in the longitudinal direction of the board in the vertical direction of the board.
  • the sinker cannot be prestressed in the effective direction of the stitch-forming forces - i.e. in the longitudinal direction of the sinker. The stitch-forming forces can therefore lead to sinker strips in the knitwear produced.
  • the DE2154323A1 shows a device for stitch formation on circular knitting machines with a sinker and a circular knitting cylinder.
  • the sinker has a lower leg (#13) which is guided in a ring guide (#12) so that the sinker does not "lift off” the circular knitting cylinder or a sinker carrier connected to the circular knitting cylinder in a direction perpendicular to the sinker movement " can.
  • a circuit board with such a leg which is suitable for engaging in ring guides, is, for example, from GB349443 known. With such sinkers, however, it has been shown that sinker strips often appear in the knitted fabric produced, particularly as the operating time increases.
  • the EP1057914B1 Fig. 12 shows a circular knitting machine intended to restrict the sinker movement in the sinker height direction by a restricting member.
  • the restricting element is arranged in a receiving portion of the knitting cylinder in such a way that it is immovable in the sinker height direction.
  • the sinkers can move in the horizontal direction relative to the restricting element and the knitting cylinder, the restricting element being positively engaged with the sinkers in the sinker height direction and there is sliding contact between the restricting member and the sinkers.
  • the movement of the sinkers in the vertical direction of the sinkers is to be restricted by the form-fitting engagement.
  • unevenness in the knitted fabric still occurs in a sinker or a knitting system with the aforementioned features. These irregularities even increase with the age of the knitting system.
  • the object of the invention is therefore to specify a sinker for knitting machines and a knitting system that make it possible to produce knitwear with a uniform stitch pattern over the entire service life of a knitting machine.
  • a sinker for use in a knitting machine comprises a shaft which extends predominantly in a sinker longitudinal direction, the shaft having at least one loop-forming means at its front end in its sinker longitudinal direction knitting operation is in contact with the yarn and which participates in the formation of stitches, the shaft having at least one basic sliding surface, and this basic sliding surface running in the longitudinal direction of the sinker and the transverse direction of the sinker width to the longitudinal direction of the sinker, and the extension of the shaft in its longitudinal direction transverse to the sinker - Is limited downwards in the sinker height direction running in the sinker width direction and is designed in such a way that the sinker can slide on it during knitting operations.
  • the basic sliding surface limits the extension of the shank at least in a section of the shank that extends in the longitudinal direction in its vertical direction of the sinker, which runs transversely to the direction of the length and width of the sinker.
  • the circuit board includes a first partial element of a pair of effects for exerting a force that acts in the direction of the height of the plate, with the pair of effects preferably including at least one spring element.
  • the force that can be exerted acts downwards on the board in the direction of the board height.
  • the force that can be exerted by the acting couple can also have directional components in the longitudinal direction of the sinker and/or the direction of the width of the sinker.
  • the magnitude of the force component in the direction of the height of the board is preferably greater than the force component in the direction of the length and width of the board.
  • the sinker in a knitting device can be prestressed in the vertical direction of the sinker with the force that can be exerted by the working couple. In this way, stitch-forming forces acting upwards in the vertical direction of the sinker, which act in the knitting process, for example when stitches are held down on a hold-down edge of the sinker, can be compensated for in order to avoid unwanted vertical forces To reduce or completely prevent board movements upwards in the board height direction.
  • the working couple advantageously includes a second sub-element with which the first sub-element functionally interacts—for example by contact—to exert the force.
  • this second partial element can advantageously be part of a needle carrier, a comb ring, a sinker carrier—for example a sinker ring—or a sinker lock, or this second partial element can be attached to the sinker carrier, sinker ring or sinker lock.
  • the sinker usually engages a sinker cam with a drive foot and is driven by this sinker cam to perform a knitting movement that is customary for sinkers, in which the sinker moves alternately along the sinker longitudinal direction.
  • this also means that part of the plate lock engages in the plate. Knitting devices are also known in which the sinker cam engages in the sinker between the drive foot and a drive-out area of the sinker.
  • the drive foot can only be in contact with the sinker cam with one of its surfaces pointing in the longitudinal direction of the sinker. This is also to be understood in the sense of this patent application as an intervention of the drive foot in the plate lock.
  • the first partial element of the working pair which is part of the circuit board, is also moved here.
  • the working couple can advantageously interact with each other in different ways depending on the position of the sinker in their knitting movement: for example, the force that can be exerted by the working couple can also alternately increase and/or decrease with the alternating knitting movement.
  • the present invention also benefits from the fact that play, which inevitably occurs in knitting devices of the prior art after a long period of operation and which unevenness or sinker stripes in the knitted fabric produced, can be compensated for or eliminated with the measures according to the invention.
  • play which inevitably occurs in knitting devices of the prior art after a long period of operation and which unevenness or sinker stripes in the knitted fabric produced.
  • wear and tear will inevitably result in play in the area of the sliding contacts over the course of the service life. This play can lead to irregularities or sinker stripes in the knitwear produced.
  • the force that can be exerted by the active couple also increases with increasing ejection of the sinker in the longitudinal direction of the sinker (ie in the direction of the needle carrier).
  • the force that can be exerted is maximum in the phase of the knitting movement in which the sinker is driven furthest in the longitudinal direction of the sinker in the direction of its front end (ie in the direction of the needle carrier).
  • this is the phase in which the knitting needle in a conventional knitting device performs a knitting movement in the longitudinal direction of its needle forwards in the direction of its stitch-forming means and the stitch slides out of the hook of the knitting needle over the jaw and latch of the knitting needle onto the needle shaft . The stitch is thus held down and the sinker is in its hold-down position.
  • At least one of the sub-elements can advantageously be a spring element that is elastically deformable in the vertical direction of the board (for example by bending) and can thereby provide the force of the active couple that can be exerted in the vertical direction of the board in the form of a spring force.
  • a spring element is elastically deformed to different extents during the knitting movement, depending on the position of the sinker during its knitting movement, in order to change the amount of force that can be exerted during the knitting movement. Further advantages result if the spring element is in contact with a second sub-element over a maximum of 50% of its length during knitting. Both the first partial element and the second partial element can be a spring element.
  • one of the partial elements is a contact surface that is essentially rigid—that is, not resilient—and interacts with the spring element.
  • the spring element can be supported on the contact surface.
  • a contact surface can be, for example, a partial surface of a ring guide, a partial surface of a needle carrier, a partial surface of a cam part, or a partial surface of a circuit board carrier.
  • the contact surface is arranged in such a way that the spring element is pressed against the contact surface during the knitting movement of the sinker in the longitudinal direction of the sinker and is forced to elastically deform in the vertical direction of the sinker. The driving force required for this in the direction of the knitting movement of the sinker is exerted on the sinker via the sinker cam.
  • the first partial element is a spring element of a sinker and the second partial element is a contact surface of a knitting device.
  • the first sub-element is a contact surface of a circuit board and the second sub-element is a spring element Knitting device is assigned.
  • both the first sub-element and the second sub-element are spring elements.
  • the first sub-element and/or the second sub-element of the pair of effects acts (selectively) on only one board.
  • the first partial element or the second partial element can also be designed in such a way that it is functionally connected to a large number of sinkers of the knitting device at the same time.
  • the working couple exerts the force preferably permanently, at least during one phase of the knitting movement, with the magnitude of the force being able to change.
  • the working couple can also exert a force on the sinker when the sinker shaft is ideally aligned in the direction of the knitting movement.
  • normal sinkers can cause sinker movements in which the sinker briefly supports itself in the sinker height direction with its drive foot and/or a portion of the shaft located between its drive foot and a drive-out region. A force acts briefly between the drive foot and the sinker lock in the direction of the sinker height.
  • the combination of a drive foot or this section of the shaft of a sinker with a sinker lock is not an effective couple within the meaning of this patent application, because these combinations only exert a force in the sinker height direction in the event of an unwanted vertical sinker movement in the sinker height direction and thus sinker strips are formed in the knitted fabric produced cannot prevent.
  • the first sub-element of the pair of effects is not a stitch-forming area of the sinker—that is, not an area of the sinker that is in contact with the yarn during stitch formation.
  • the first partial element of the pair of effects is a feature that the sinker has in addition to the usual stitch-forming areas of a sinker in order to interact with the second partial element of the pair of effects to exert a force on the sinker that counteracts the stitch-forming forces that occur in the stitch-forming areas of the sinker can.
  • the effect couple can, for example, comprise a magnet or an electrically controlled actuator (for example a piezo actuator, an electromagnetic actuator or a pneumatic actuator). It is advantageous if the circuit board and the first sub-element are in one piece—the circuit board and the first sub-element therefore consist of one part. You can do this, for example, as a part stamped out of sheet metal.
  • the first sub-element is joined to the circuit board--the circuit board and the first sub-element are therefore initially separate components which are connected to one another--preferably inseparably.
  • the first sub-element can then forming - for example by caulking - by gluing, welding or soldering to the circuit board.
  • the first sub-element is positively connected to the rest of the circuit board.
  • the first partial element advantageously includes a coupling which engages in a form-fitting manner in a coupling point on the circuit board.
  • the coupling point is advantageously a recess in the shank of the sinker, whose contour in the plane spanned by the sinker length direction and sinker height direction corresponds to the contour of the coupling of the first partial element and penetrates the shank in the sinker width direction.
  • the sinker comprises a raising area which comprises the loop-forming means and the front end of the shaft, which comprises 10-50%, but preferably 25-40% of the longitudinal extent of the shaft, and which contains the first partial element of the working pair.
  • the expulsion area is the part of the sinker which protrudes from the sinker carrier in the longitudinal direction towards the stitch-forming tool during the knitting operation.
  • stitch-forming forces act on the sinker on stitch-forming means--for example, a hold-down edge--in the vertical direction of the sinker, which essentially act on the stitch-forming means when held down or cast off.
  • the force that can be exerted by the action couple can counteract these stitch-forming forces. If both the loop-forming means and the first sub-element of the working pair are arranged in the ejection area, the result is short power transmission paths within the sinker, which are particularly advantageous.
  • the first sub-element preferably a spring element
  • the first partial element is arranged at a rear end of the shank, which is opposite the front end of the shank in the longitudinal direction of the sinker.
  • the first partial element at least partially overlaps with the shank in the longitudinal direction of the sinker and has at least one partial region that is spaced apart from the shank in the vertical direction of the sinker. If the first partial element is arranged at the rear end of the shaft, it can advantageously be in contact with a partial area of a sinker carrier during knitting operation, and this partial area of the sinker carrier can be the second partial element of the working pair.
  • the first partial element can be a spring element which is arranged at the rear end of the shaft and is supported on a contact surface in order to be elastic deform.
  • the contact surface can be part of the circuit board carrier and form the second partial element of the functional pair.
  • the sinker has a drive foot, which is arranged at the rear end of the shaft and protrudes upwards beyond the adjoining area of the shaft in the sinker height direction, and the first partial element—preferably a spring element—in the sinker longitudinal direction between the drive foot and the drive-out area is arranged.
  • the first partial element is then advantageously arranged on the shaft of the sinker. It is particularly advantageous if the first sub-element projects upwards beyond the surrounding areas of the shaft in the vertical direction of the board.
  • the first sub-element is arranged between the drive foot and the output area, it is advantageously in contact with a sinker cam during knitting operation, wherein the sinker cam can serve as the second sub-element of the working pair in order to exert a force with the working pair.
  • the sinker comprises at least one sliding surface, which is assigned to the expulsion area, which runs along the sinker width and sinker longitudinal direction of the shank, and its surface normal in the sinker height direction of the shank in the same direction as the force that can be exerted by the acting couple on the sinker points.
  • the sliding surface therefore points downwards essentially in the vertical direction of the board.
  • the surface normal of the sliding surface has at least one directional component that points in the same direction as the force that can be exerted on the sinker by the acting couple.
  • the sinker is rigid in the region adjoining the sliding surface in the direction of the sinker height—that is, not elastically deformable.
  • the sliding surface can thus serve as a support with which the circuit board rests on a needle carrier—or on a part connected to the needle carrier—and ensures precise positioning of the circuit board in the vertical direction of the circuit board.
  • the at least one sliding surface can be part of the basic sliding surface.
  • the at least one basic sliding surface can also be separated from the basic sliding surface and spaced apart from the basic sliding surface in the vertical direction.
  • the sinker advantageously comprises at least two sliding surfaces (e.g. the basic sliding surface and a further sliding surface), which are preferably spaced apart from one another in the longitudinal and/or vertical direction of the sinker.
  • a sinker is also advantageous in which the at least one sliding surface at least partially overlaps with the first partial element—in the longitudinal direction of the sinker. At least partial areas of the sliding surface are therefore not different from the first one in the longitudinal direction of the board Part element spaced. However, the sliding surface can be spaced apart from the first partial element, in particular in the vertical direction of the board. This results in a low mechanical load on the sinker and a permanently even mesh pattern can be ensured.
  • a sinker offers further advantages in which the at least one loop-forming means is a holding-down edge for holding down the knitted fabric that has just been finished.
  • a stitch that is connected to a knitting needle is prevented by the hold-down edge from also making a movement in the longitudinal direction of the needle during the ejection movement of the knitting needle in the longitudinal direction of the needle. Instead, it is held at the hold-down edge in a fixed position in the longitudinal direction of the needle - the stitch is held down.
  • the shaft of the knitting needle slides along the stitch and the stitch "slips" onto the shaft of the knitting needle.
  • the sinker (in addition to the holding-down edge) comprises a further stitch-forming means—preferably a knock-over edge for knocking off the knitted fabric that has just been finished. It is particularly advantageous if the hold-down edge forms a groove in the sinker together with the further loop-forming means—preferably a knock-off edge, the hold-down edge delimiting the groove upwards in the direction of the sinker height and the knock-off edge delimiting the groove downwards in the direction of the sinker height.
  • the first partial element is a spring element that includes a leg.
  • This can advantageously be formed by an incision in the shank or delimit an indentation in the shank. This incision has an extension in the board longitudinal direction and the board height direction of the board.
  • the spring element is elastically yielding or elastically deformable in the vertical direction of the board. The spring element withstands deformations even with repeated and oscillating loads.
  • the spring element is advantageously designed as a bending spring.
  • the spring element is advantageously a leaf spring or flat spring.
  • a spring element which has a spring stiffness of 100 cN/mm to 400 cN/mm, but preferably of 200 cN/mm to 350 cN/mm, in the vertical direction of the blank is particularly advantageous.
  • the spring rigidity is so great that with the possible spring deflection, a spring force of 20 cN to 100 cN pointing in the direction of the board height can be exerted.
  • a spring element is particularly advantageous which, at at least one point of its longitudinal extension, has a greater height in the direction of the height of the board than its width in the direction of the width of the board.
  • the first sub-element is a spring element and the circuit board comprises a limiting element which is suitable for limiting the elastic deformation of the spring element in such a way that the limiting element, when a maximum elastic deformation of the spring element is reached, acts on the second sub-element of the working pair and/or the spring element strikes.
  • the limiting element serves as a stop and prevents further deformation of the spring element when it strikes the second partial element or the spring element.
  • the limiting element is rigid - so it is not flexible like the spring element.
  • a limiting element is particularly advantageous which has a rigidity in the direction of the height of the plate which is at least twice as great, but preferably at least five times as great as the spring stiffness of the spring element in the direction of the height of the plate. Further advantages result if the delimiting element has a rigidity of at least 400 cN/mm, but preferably at least 1000 cN/mm, in the vertical direction of the blank.
  • the delimiting element is an arm, which adjoins the shaft in the expulsion area of the sinker in the longitudinal direction of the sinker at the front end of the sinker.
  • the spring element overlaps with the delimiting element in the longitudinal direction of the board. Such a limiting element prevents overloading and thus failure of the spring element. At the same time, the force that can be exerted on the plate by the pair of effects is limited.
  • the limb comprises at least one section that tapers in the direction of the height and/or width of the circuit board.
  • the tapered section thus has a smaller height in the direction of the height of the plate and/or a smaller width in the direction of the width of the plate than regions of the leg adjoining it. It is advantageous to have a leg which, in the direction of the height of the board, has a lower height than its width in the direction of the width of the board.
  • a guide region adjoins the tapered region at the front, which has a greater height in the vertical direction of the sinker than the tapered section and which is in contact with the second partial element of the working pair - preferably a contact surface of a needle carrier or a ring guide stands.
  • a leg that includes a dirt scraper that has a concave recess that is open on one side in the longitudinal direction of the board offers further advantages.
  • a dirt scraper is advantageous which has a sharp edge at at least one outlet of the concave recess, which has an angle of less than 30° to the adjacent surfaces of the leg. With the dirt scraper, the Accumulation of dirt - for example fiber abrasion - can be reduced in the operating area of the board.
  • Customary knitting devices have a large number of sinkers.
  • the first partial elements of the individual circuit boards are not functionally connected to one another. Rather, each circuit board is assigned a first sub-element that interacts individually with the circuit board assigned to it.
  • the shaft has at least one loop-forming means at its front end in its sinker longitudinal direction, which is in contact with the yarn during the knitting operation and which participates in the loop formation.
  • the shank of the sinker advantageously has at least one basic sliding surface, this basic sliding surface running in the longitudinal direction of the sinker and in the direction transverse to the longitudinal direction of the sinker sinker width direction of the shaft runs, and the extension of the shaft in its transverse to the sinker longitudinal and sinker width direction sinker height direction is limited downwards and is such that the sinker can slide on it during knitting.
  • the force that can be exerted by the working couple that is, the first partial element and the second partial element—acts on an expulsion area of the sinker, which comprises at least one loop-forming means and the front region of the shaft of the sinker, which is 5-30%, but preferably 10-20% the longitudinal extension of the shank of the sinker.
  • the first partial element preferably a spring element—is connected to the circuit board or is in contact with the circuit board. All the features of a sinker described in the preceding paragraphs of this patent application are also advantageous for sinkers of the knitting device.
  • the needle carrier includes the counter-element or is connected to the counter-element. It is particularly advantageous if the counter-element is arranged on a ring guide of a knitting cylinder, a sinker carrier or a sinker lock.
  • the first partial element and/or the second partial element has a contact surface which encloses an angle of inclination with the longitudinal direction of the board. At least during a phase of the knitting movement, the contact surface is in contact with the partial element of the working pair, which forms a working pair with the partial element which includes the contact surface.
  • the contact can be in the form of a point, a line or a surface area.
  • a surface contact enables an even distribution of the load on the two partial elements and thus increases the service life of the knitting device.
  • the pitch angle of the contact surface is greater than 0 degrees at least at one point of its longitudinal extent in the longitudinal direction of the board.
  • the contact surface has at least one partial surface that encloses an angle of inclination with the longitudinal direction of the board.
  • the contact surface In its areas adjoining the partial surface, the contact surface can run in the longitudinal direction of the circuit board—that is, it does not enclose an angle of inclination with the longitudinal direction of the circuit board.
  • the pitch angle can also be of different sizes at different points of the sub-area.
  • the pitch angle is the same at every point on the sub-area. It is particularly advantageous if the pitch angle of the partial surface has a gradient along its longitudinal extent in the longitudinal direction of the blank—that is to say increases or decreases (continuously) along the longitudinal extent of the partial surface.
  • the contact surface has at least two partial surfaces with the Board longitudinal direction enclose a pitch angle that is greater than 0 degrees.
  • the contact surface can then advantageously run in the longitudinal direction of the board - i.e. it does not enclose an angle of inclination with the longitudinal direction of the board (the angle of inclination is equal to zero).
  • the contact surface has at least two sub-surfaces which enclose different pitch angles with the longitudinal direction of the board.
  • the cutting edge of the contact surface (or at least a partial surface of the contact surface) lying in an LH plane spanned by the board length and board height direction has a constant radius around a central axis running in the board width direction.
  • the sinker in knitting devices usually performs a knitting movement in the longitudinal direction of the sinker.
  • at least one of the two partial elements, which interacts with an inclined contact surface performs a lifting movement in the vertical direction of the sinker during the knitting movement of the sinker in order to be permanently connected to the contact surface during the knitting movement.
  • the contact surface is a surface of a knitting cylinder or a sinker cam pointing downwards at least in sections in the sinker height direction.
  • angle of inclination of the contact surface and/or the partial surface of the contact surface is 0.5 to 22 degrees, but preferably 2 to 10 degrees.
  • the selection ranges mentioned have proven to be particularly advantageous in knitting devices with sinkers of conventional dimensions.
  • the sinker in the knitting device can assume at least two positions during its knitting movement, in which the force acting on the sinker by the acting couple is of different magnitude.
  • the sinker is driven forward to different extents in the longitudinal direction of the sinker.
  • the force acting on the sinker by the acting couple is greater in a first position of the sinker than in a second position of the sinker, the sinker being driven further forward in the longitudinal direction of the sinker in the first position than in the second position.
  • the front is the direction in which the front end of the sinker also points - in a knitting device the front end of the sinker points in towards the needle carrier.
  • the first partial element and/or the second partial element is a spring element, it is advantageous if the spring element is elastically bent to different extents in these at least two positions in the board height direction.
  • the force in a hold-down position of the sinker is 40 cN to 100 cN, but preferably 50 cN to 70 cN, the sinker in the hold-down position being pushed forward in the longitudinal direction of the sinker in the direction of the needle carrier as far as possible.
  • the stitch-forming force acting upwards in the vertical direction of the sinker which usually acts on the sinker via the stitch-forming elements during stitch formation, is greatest. If the sinker force in the hold-down position is in the above-mentioned selection range, an offset movement of the sinker in the sinker height direction upwards and thus irregularities in the stitch pattern are prevented in this position.
  • the first partial element and/or the second partial element is a spring element which is most elastically deformed in the hold-down position of the board.
  • the spring element is most elastically deformed in the vertical direction of the sinker in the hold-down position of the sinker.
  • the second partial element is either part of the sinker lock or is attached to the sinker lock.
  • the first partial element is a spring element which is arranged on the shaft of the sinker in the longitudinal direction of the sinker between the drive foot and the drive-out area of the sinker.
  • the second partial element, which is part of the sinker lock or is attached to the sinker lock is a contact surface which is in contact with the spring element at least during one phase of the knitting operation, the spring element being elastic when in contact with the contact surface in the sinker height direction deformed.
  • the force increases at least during one phase of the knitting movement of the sinker, preferably in the direction of the at least one stitch-forming means.
  • the first sub-element and/or the second sub-element is a spring element
  • the spring element is advantageously elastically deformed to an increasing extent in the vertical direction of the sinker, at least during this phase of the knitting movement of the sinker as the sinker sprout.
  • the figure 1 shows a knitting device 14 with a needle carrier 15, a sinker carrier 17, a sinker lock 33 and a sinker 1.
  • the sinker 1 has a shaft 2 which extends essentially in the sinker longitudinal direction L and which is arranged in a groove 21 of the sinker carrier 17.
  • a loop-forming means 3 in the form of a hold-down edge 10 and a first sub-element 6 of an active pair in the form of a spring element 22 are arranged.
  • the needle carrier 15 carries a knitting needle 16 whose needle shank 23 extends in the longitudinal direction N of the needle.
  • the longitudinal direction of the needle N essentially points in the vertical direction H of the sinker and thus runs perpendicularly to the longitudinal direction L of the sinker.
  • the teaching according to the invention can advantageously be used with all conceivable angles between the longitudinal direction N of the needle and the longitudinal direction L of the sinker.
  • the sinker 1 rests with its basic sliding surface 4 on the sinker support 17 and can slide back and forth on the sinker support 17 driven by the sinker lock 33 during its alternating knitting movement in the longitudinal direction L of the sinker. In the illustrated position of the sinker 1, the sinker 1 is in its hold-down position, that is to say pushed out as far as possible in the direction of the needle carrier 15.
  • the figure 2 shows the detail A of the figure 1 : the contact surface 31 is inclined by a pitch angle 20 to the sinker longitudinal direction L in such a way that the spring element 22 is elastically deformed during the knitting movement of the sinker 1 in the sinker longitudinal direction L through contact with the contact surface 31, so that a force 7 pointing in the sinker height direction H acts on the Board 1 is exercised.
  • the driving force required for this, acting in the longitudinal direction L of the sinker is exerted on the sinker 1 by the sinker lock 33 .
  • the spring element 22 Due to the gradient angle 20 of the contact surface 31, the spring element 22 is then elastically deformed to an increasing extent in the vertical direction H of the board in a phase with increasing ejection 36 of the board 1 - consequently the action couple exerts a force 7 on the board 1, which increases with increasing ejection 36 of the board 1 increases.
  • the force 7 acts at the point of contact between the spring element 22 and the contact surface 31.
  • the force 7 acts perpendicular to the contact surface 31 on the circuit board 1.
  • the force 7 thus has a longitudinal component 26 pointing in the longitudinal direction L of the circuit board and a height component pointing in the vertical direction H of the circuit board 27, with the height portion 27 being greater than the longitudinal portion 26. Due to the force 7, the sinker 1 is pressed downwards in the sinker height direction H, so that its sliding surface 9 rests against the upper side of the needle carrier 15 during the knitting movement.
  • the figure 3 shows an exemplary embodiment of a needle carrier 15 and a sinker 1, the shaft 2 of which extends in the longitudinal direction L of the sinker.
  • the shank 2 At its front end 5 in the longitudinal direction L of the sinker, the shank 2 has a loop-forming means 3 in the form of a hold-down edge 10 .
  • the sinker 1 can hold down stitches on the needle shaft of a knitting needle with the hold-down edge 10, while the knitting needle performs a knitting movement in the longitudinal direction of the needle upwards.
  • a first partial element 6 of an active couple in the form of a spring element 22 is arranged in an expulsion area 8 of the blank 1, which includes the front end 5 and the hold-down edge 10.
  • the spring element 22 is shown in two different states: the contour with the solid line shows the spring element 22 in a completely unloaded, ie not deformed, state. This corresponds to the state of the spring element outside of a knitting device. This contour is also shown as if it were in front of the needle carrier 15 shown in section, which of course is not the case.
  • the contour with the dashed line shows the spring element 22 in the operating position in which the sinker is driven out to the maximum extent. That's it Spring element 22 elastically deformed in the vertical direction H of the board. The spring element assumes this state—or this operating position—at least during a phase of the knitting movement in a knitting device.
  • the spring element 22, together with a second sub-element 18 of the pair of effects, is suitable for exerting a force 7 which acts downwards on the board 1 in the direction H of the board height.
  • the second partial element 18 includes a contact surface 31 of the needle carrier 15, with which the spring element 22 is in contact during the knitting movement, and which is arranged such that the spring element 22 is elastically deformed in the vertical direction H of the sinker.
  • the contact surface 31 At its rear end in the longitudinal direction L of the board (in the direction of the board carrier), the contact surface 31 has a partial surface 39 which encloses an angle of inclination with the longitudinal direction L of the board. This gradient angle changes along the longitudinal extension of the partial surface 39 in the longitudinal direction L of the blank in such a way that the cutting edge of the partial surface 39, which lies in the LH plane, has a constant radius 40 around the central axis 41 at every point - the cutting edge is therefore part-circular.
  • the limiting element 38 is in contact with the contact surface 31 and prevents further upward movement of the board 1 in the board height direction H, so that the spring element 22 does not have the in the 3 illustrated elastically deformed state addition can be further elastically deformed.
  • the limiting element thus limits the deformation path of the spring element 22.
  • the spring element 22 is thus in the state shown with dashed lines in a state in which it has already reached its maximum deformation that it experiences during operation. In this case, due to the elastic deformation, the force 7 is exerted on the circuit board 1 by the pair of effects. In the maximally deformed state of the spring element 22 shown in dashed lines, this force 7 is at its maximum (greater than in the other operating states).
  • the shaft 2 has a drive foot 28 .
  • the drive foot 28 is suitable for being in engagement with a sinker cam in order to drive the sinker 1 into a knitting movement, the knitting movement being an alternating movement which runs essentially in the longitudinal direction L of the sinker.
  • the sinker can slide on a sinker carrier on a basic sliding surface 4, which delimits the shaft downwards in the sinker height direction H.
  • the sinker lock and the sinker carrier are not shown for the sake of clarity.
  • the sliding surface 9 is part of the basic sliding surface 4 and overlaps with the spring element 22 in the longitudinal direction L of the plate the board 1 exertable force 7.
  • the surface normal of the sliding surface 9 also points in this direction. In a knitting device it is possible to support the force 7 that can be exerted by the working couple by contact of the sliding surface 9 with a needle carrier 15 .
  • the figure 4 shows another exemplary embodiment of a needle carrier 15 and a circuit board 1.
  • the spring element 22 is shown in two different states: the contour with the solid line (again in the "foreground” in front of the needle carrier 15 shown in section) shows the spring element 22 in a completely unloaded state , i.e. non-deformed state. This corresponds to the state of the spring element outside of a knitting device.
  • the contour with the dashed line shows the spring element 22 in its operating position, in which the spring element 22 is elastically deformed in the vertical direction H of the board.
  • the spring element assumes this state at least during a phase of the knitting movement in a knitting device.
  • the partial surface 39 is not part-circular, but at every point of its longitudinal extent in the longitudinal direction L of the board encloses a consistently large angle of inclination with the longitudinal direction L of the board - the partial surface 39 is therefore a flat surface that encloses an angle with the longitudinal direction L of the board.
  • the circuit board 1 has 3 in addition, a further stitch-forming means 3 in the form of a knock-over edge 24, a limiting element 38 and another sliding surface 9, which is arranged in the expulsion area 8 of the sinker 1.
  • the knock-over edge 24 is suitable for knocking off the knitted fabric produced so that it detaches from the knitting needles.
  • the hold-down edge 10 and the knock-off edge 24 together form a groove 34 which is arranged in the expulsion area 8 of the blank 1 .
  • the sliding surface 9 rests on the upper side of the needle carrier 15 and aligns the sinker 1 in its expulsion area 8 in the vertical direction H of the sinker by being pressed against the upper side of the needle carrier 15 due to the force 7 exerted on the sinker 1 by the working couple 6, 18 .
  • the spring element 22 is shown in dashed lines in its elastically deformed state. In this state, the elastic deformation that can be achieved during the knitting operation due to the position of the sinker has reached its maximum.
  • the limiting element 38 proposes to the contact surface 31 (second sub-element 18) and thus prevents further deformation of the spring element 22, which is on the illustrated elastically deformed state of the spring element 22 (dashed contour) goes beyond.
  • the limiting element prevents the spring element 22 from being overloaded in the event of short-term peak loads acting on the spring element 22 . Without such a limiting element 38, the spring element 22 could be plastically deformed or even break if the load peaks were too high, so that the entire sinker 1 would have to be replaced in order for the knitting operation to continue without errors.
  • the figure 5 shows another embodiment of a sinker 1 with a shaft 2, a holding-down edge 10, a knock-off edge 24 and a basic sliding surface 4.
  • the expulsion area 8 of the sinker 1 includes a sliding surface 9 and a first partial element 6 in the form of a spring element 22.
  • the spring element 22 includes a Leg 11, which is formed by an incision 12 in the shaft 2 of the sinker 1.
  • the incision 12 extends in the board longitudinal direction L and in the board height direction H and completely penetrates the board 1 in the width direction B.
  • the leg 11 comprises a tapered section 13, in which the leg 11 is tapered in the vertical direction H of the board.
  • the spring stiffness of the spring element 22 can be reduced in such a way that the spring force required for the knitting process is established in interaction with a second partial element 18 of the working pair.
  • the leg 11 is tapered in the width direction B in the tapered section 13 .
  • a guide region 35 adjoins the tapered section 13 in the longitudinal direction L to the front. In the vertical direction H of the board, the guide region 35 is greater in height than the tapered section 13 and is spaced apart from the sliding surface 9 in the vertical direction H of the board by the clear dimension 42 .
  • the guide area 35 is suitable for knitting with components of a knitting device - for example a needle carrier - to be in contact and to guide the spring element 22 along a second partial element 18 of the working pair - for example a contact surface.
  • Circuit board 1 is off to show how it works figure 5 in 6 shown together with a needle carrier 15: during the knitting movement of the sinker in the longitudinal direction L of the sinker, the sinker 1 is moved back and forth on the needle carrier 15.
  • the sinker 1 slides with its sliding surface 9 on the needle carrier 15.
  • the needle carrier 15 comprises a second partial element 18 with a contact surface 31 which is in contact with the spring element 22 of the sinker 1.
  • the second partial element 18 has sections in board height direction H to a greater height than the clear dimension 42 (cf. figure 5 ) of the incision 12 of the sinker 1 in the sinker height direction H.
  • the spring element 22 is therefore elastically deformed by contact with the contact surface 31 of the counter-element 18 in the sinker height direction H during the knitting movement of the sinker 1 .
  • the contact surface 31 comprises a first partial surface 43 and a second partial surface 44, each of which enclose an angle of inclination to the longitudinal direction L of the board, the first angle of inclination 45 between the first partial surface 43 and the longitudinal direction L of the board being greater than the second angle of inclination 46 between the second partial surface 44 and the longitudinal direction L of the sinker.
  • the contact surface 31 runs in the longitudinal direction L of the sinker. This results in a following during an ejection movement of the sinker 1 in the longitudinal direction L of the sinker (in the direction of the needle carrier 15). described course of force of force 7: when sinker 1 is completely retracted (during its knitting movement, the sinker is drawn in as far backwards as possible in the longitudinal direction of the sinker), sinker 1 initially has no contact with spring element 22 - no force 7 is exerted.
  • the spring element 22 then comes into contact with the first partial surface 43 and is elastically deformed due to the inclined course of the first partial surface 43 with the first gradient angle 45, so that the working pair consisting of the contact surface 31 and the spring element 22 a force 7 is exerted, which increases with increasing ejection of the circuit board 1 until the spring element 22 is in contact with the section of the contact surface 31 which is arranged between the first and the second partial surface 43, 44 and runs in the longitudinal direction L of the circuit board. While the spring element 22 is in contact with this section, the force 7 exerted is constant and at a maximum (maximum force in normal knitting operations). With the continuous ejection movement of the sinker 1, the spring element 22 is then in contact with the second partial surface 44 and the force 7 exerted decreases again due to its inclined course with the pitch angle 46 with increasing ejection of the sinker 1.
  • the figure 7 shows a further exemplary embodiment of a needle carrier 15 and a sinker 1 with a shaft 2, a hold-down edge 10, a knock-off edge 24, a basic sliding surface 4 and a sliding surface 9.
  • the force element 6 in the form of a spring element 22 is a single item that is joined to the shaft 2 of the circuit board 1. as well as in 3 and 4 the spring element 22 is shown in two different states: the contour with the solid line shows the spring element 22 (again in the "foreground" in front of the needle carrier 15 shown in section) in a completely unloaded, ie not deformed, state. This corresponds to the state of the spring element outside of a knitting device.
  • the contour with the dashed line shows the spring element 22 in its operating position, in which the spring element 22 is elastically deformed in the vertical direction H of the board.
  • the spring element assumes this state—or this operating position—at least during a phase of the knitting movement in a knitting device.
  • the spring element 22 includes a coupling 29 which engages in a coupling point 30 of the shaft 2 in a form-fitting manner.
  • the coupling point 30 is a recess in the shaft 2 of the sinker 1, the contour of which in the LH plane spanned by the sinker length direction L and sinker height direction H corresponds to the contour of the coupling 29 of the spring element 22 and penetrates the shaft 2 in the sinker width direction B.
  • this embodiment of the sinker 1 otherwise compensates for the sinker 1 in terms of its functions 4 .
  • the spring element 22 is in contact with a contact surface 31 of the needle carrier 15 and forms an active couple with this contact surface 31 which, during knitting operation, exerts the force 7 pointing downwards in the vertical direction H of the sinker onto the sinker.
  • the spring element 22 is elastically deformed (dashed contour).
  • the delimiting element 38 is not in contact with the contact surface 31 . A further elastic deformation of the spring element 22 beyond its elastically deformed state shown in dashed lines is possible.
  • the tip of the spring element 22 in this exemplary embodiment would touch the limiting element 38 when it reached its maximum elastically deformed state. This contact would prevent further deformation of the spring element 22 with the aid of the limiting element 38 .
  • the figure 8 shows a further exemplary embodiment of a sinker 1 with a shaft 2, a holding-down edge 10, a knock-off edge 24, a basic sliding surface 4, a sliding surface 9 and a spring element 22, which comprises a leg 11 with a tapered section 13. as well as in 3 , 4 and 7 the spring element 22 is shown in two different states: the contour with the solid line shows the spring element 22 in a completely unloaded, ie not deformed, state. This corresponds to the state of the spring element outside of a knitting device. Again the spring element is 22 in shown in the foreground in this state and partially covers the needle carrier 15 in this representation.
  • the contour of the spring element 22 with the dashed line shows the spring element 22 in its operating position, in which the spring element 22 is elastically deformed in the vertical direction H of the board.
  • the spring element assumes this state—or this operating position—at least during a phase of the knitting movement in a knitting device.
  • the spring element 22 is formed by an incision 12 in the shank 2 of the board 1 .
  • a dirt scraper 25 is arranged on the leg 11 and is suitable for removing dirt—for example fiber residues or dust—that can accumulate in the area of the spring element 22 during the knitting operation.
  • the dirt scraper is a concave recess in the leg 11 which delimits at least part of the leg 11 in the longitudinal direction L on one side.
  • the dirt scraper 25 is open on one side in the longitudinal direction L.
  • this embodiment of the sinker 1 otherwise essentially compensates for the sinker 1 in terms of its functioning figure 5 and 6 .
  • the sinker 1 is functionally connected to the needle carrier 15 .
  • the needle carrier 15 off 8 is in 9 enlarged and shown without the circuit board 1.
  • the needle carrier 15 has a second partial element 18 which includes a contact surface 31 .
  • the spring element 22 forms an active couple with the contact surface 31 with which a force 7 can be exerted on the sinker 1 .
  • the spring element 22 can deform elastically in the knitting operation - such a state in which the spring element 22 is in contact with the contact surface 31 and is elastically deformed is in FIG figure 8 shown with a dashed line.
  • the contact surface 31 comprises a first partial surface 43 and a second partial surface 44, with the second partial surface 44 adjoining the first partial surface 43 in the longitudinal direction L of the sinker in the ejection direction (viewed from the sinker 1 in the direction of the needle carrier 15).
  • the second partial area is shown in 8 shown hidden behind the spring element 22 in its unloaded state (contour with the solid line), the hidden edge of the second partial surface 44 being shown in dashed lines. However, the exact contour of the second partial surface 44 is figure 9 clearly shown.
  • the first partial surface 43 encloses a first gradient angle 45 to the sinker longitudinal direction L and the second partial surface 44 a second gradient angle 46 to the sinker longitudinal direction L, the first gradient angle 45 being greater than the second gradient angle 46.
  • the force 7 continues to increase when the spring element 22 comes into contact with the second partial surface 44 as the blank 1 ejects more and more. Due to the smaller second pitch angle 46 of the second partial surface 44, however, the force 7 increases less than when in contact with the first partial surface 45 (larger first pitch angle 45) at the beginning of the ejection movement.
  • the greatest possible force 7 is applied at an early point in time of the ejection movement in order to stabilize and precisely position the blank 1 during its ejection movement, but without generating an unnecessarily large force 7 at a later point in time of the ejection movement.
  • the figure 10 shows a further exemplary embodiment of a knitting device 14 with a needle carrier 15, a sinker lock 33 and a sinker carrier 17 which carries a sinker 1.
  • the sinker 1 has a shank 2 which extends essentially in the longitudinal direction L of the sinker and at the front end 5 of which in the longitudinal direction L of the sinker a stitch-forming means 3 in the form of a hold-down edge 10 is arranged.
  • the shaft 2 At its rear end 32 opposite the front end 5 in the longitudinal direction L, the shaft 2 has a first partial element 6 of an active pair in the form of a spring element 22 .
  • the spring element 22 is in contact with a second partial element 18 which is assigned to the circuit board carrier 17 .
  • the spring element 22 and the second partial element 18 form the active couple with which a force 7 can be exerted on the circuit board 1 . Similar to the exemplary embodiments described above, the spring element 22 can deform elastically during the knitting operation.
  • the sliding surface 9 is part of the basic sliding surface 4 and is pressed by the force 7 against the upper side of the board carrier 17 so that the board 1 is aligned in the board height direction.
  • the figure 11 shows a further exemplary embodiment of a knitting device 14 with a needle carrier 15 and a sinker carrier 17 which carries a sinker 1.
  • the circuit board 1 is arranged in a groove 21 of the circuit board carrier 17 .
  • the knitting needle 16 is not shown.
  • the sinker 1 has an expulsion area 8 which includes a stitch-forming means 3 in the form of a hold-down edge 10 .
  • the shaft 2 has a drive foot 28 which engages with a sinker lock 33 of the knitting device 14 .
  • the drive foot 28 protrudes beyond the adjacent area of the shaft 2 upwards in the board height direction H.
  • the sinker lock 33 can drive the sinker 1 into a knitting motion in the longitudinal direction L of the sinker by contact with the drive foot 28, so that the sinker 1 can slide back and forth with its basic sliding surface 4 on the sinker support 17 in the longitudinal direction L of the sinker.
  • a first partial element 6 in the form of a spring element 22 is arranged on the shank 2 in the longitudinal direction L of the plate between the drive foot 28 and the drive-out area 8 and protrudes upwards beyond the adjoining areas of the shank 2 in the direction H of the plate height.
  • the spring element 22 is in contact with a second partial element 18 which is assigned to the sinker lock 33 of the knitting device 14 .
  • the second sub-element 18 is aligned in such a way that the spring element 22 is elastically deformed in the vertical direction H of the sinker during the knitting operation.
  • the second partial element 18 is a contact surface 31 which runs flat in the longitudinal direction L of the board and is rigid in the vertical direction H of the board.
  • the spring element 22 and the contact surface 31 form an effective pair with which a force 7 is exerted downwards on the circuit board 1 in the vertical direction H of the circuit board.
  • the sliding surface 9 is part of the basic sliding surface 4 and is pressed by the force 7 against the upper side of the circuit board carrier 17 so that the circuit board 1 is aligned in the vertical direction H of the circuit board.
  • the contact surface 31 can enclose an angle of inclination with the longitudinal direction L of the circuit board that is greater than 0 degrees.

Claims (16)

  1. Platine (1), destinée à l'utilisation dans une machine à tricoter, présentant les caractéristiques suivantes :
    • une tige (2) qui s'étend principalement dans une direction longitudinale de la platine (L),
    • la tige (2) présentant, à son extrémité avant (5) dans sa direction longitudinale de la platine (L), au moins un moyen de formation de boucles (3) qui est en contact avec le fil dans le fonctionnement de tricotage et qui participe à la formation de boucles,
    • l'au moins un moyen de formation de boucles (3) étant une arête de maintien vers le bas (10) servant à maintenir vers le bas le tricotage qui vient d'être terminé,
    • la tige (2) présentant au moins une surface de glissement de base (4),
    • cette surface de glissement de base (4) s'étendant dans la direction longitudinale de la platine (L) et la direction de la largeur de la platine (B), s'étendant transversalement à la direction longitudinale de la platine (L), de la tige (2), et l'étendue de la tige (2) dans sa direction verticale de platine (H) s'étendant transversalement à la direction longitudinale de la platine (L) et la direction de la largeur de la platine (B) étant limitée vers le bas et étant obtenue de telle sorte que la platine (1) puisse glisser sur celle-ci dans le fonctionnement de tricotage,
    • et des forces de formation de boucles agissant lors du procédé de tricotage, lors du maintien vers le bas de boucles au niveau de l'arête de maintien vers le bas (10) de la platine (1), lesquelles forces agissent vers le haut dans la direction verticale de la platine (H),
    caractérisée par
    • un premier élément partiel (6) d'une paire fonctionnelle servant à exercer une force (7) qui agit dans la direction verticale (H) de la platine (1), la paire fonctionnelle comprenant de préférence au moins un élément ressort (22),
    • et la platine (1) pouvant être précontrainte dans la direction verticale de la platine (H) par la force (7), pouvant être exercée, de la paire fonctionnelle dans un dispositif de tricotage, afin de compenser les forces de formation de boucles.
  2. Platine (1) selon la revendication précédente,
    caractérisée par
    • une région de sortie (8) qui comprend le moyen de formation de boucles (3) et l'extrémité avant (5) de la tige (2),
    • qui comprend de 10 à 50 %, de préférence cependant de 25 à 40 % de l'étendue longitudinale de la tige (2),
    • et qui contient le premier élément partiel (6) de la paire fonctionnelle.
  3. Platine (1) selon la revendication précédente,
    caractérisée par
    • au moins une surface de glissement (9) qui est associée à la région de sortie (8),
    • qui s'étend le long de la direction de la largeur de la platine (B) et de la direction longitudinale de la platine (L) de la tige (2),
    • et dont la normale à la surface dans la direction verticale de la platine (H) de la tige (2) est orientée dans le même sens que la force (7) pouvant être exercée par la paire fonctionnelle.
  4. Platine (1) selon la revendication précédente,
    caractérisée en ce que
    l'au moins une surface de glissement (9) chevauche au moins partiellement le premier élément partiel (6).
  5. Platine (1) selon une revendication précédente,
    caractérisée en ce que
    le premier élément partiel (6) est un élément ressort (22) qui comprend une branche (11) qui est formée par une entaille (12) dans la tige (2), cette entaille (12) présentant une étendue dans la direction longitudinale (L) et la direction verticale (H) de la platine (1).
  6. Platine (1) selon la revendication précédente,
    caractérisée en ce que
    la branche (11) comprend au moins une section (13) rétrécie dans la direction verticale de la platine (H) et/ou la direction de la largeur de la platine (B) de la tige (2).
  7. Dispositif de tricotage (14) présentant les caractéristiques suivantes :
    • un porte-aiguilles (15), de préférence un cylindre de tricotage, qui porte au moins une aiguille à tricoter (16) dans le fonctionnement de tricotage,
    • un support de platine (17), de préférence une bague de platine, qui porte au moins une platine (1) qui, lors du fonctionnement de tricotage, coopère avec l'au moins une aiguille à tricoter (16) et dont la tige (2) s'étend sensiblement dans une direction longitudinale de la platine (L), lors du fonctionnement de tricotage,
    • la platine comprenant une tige (2) qui s'étend principalement dans une direction longitudinale de la platine (L),
    • la tige (2) présentant, à son extrémité avant (5) dans sa direction longitudinale de la platine (L), au moins un moyen de formation de boucles (3) qui est en contact avec le fil dans le fonctionnement de tricotage et qui participe à la formation de boucles,
    • l'au moins un moyen de formation de boucles (3) étant une arête de maintien vers le bas (10) servant à maintenir vers le bas le tricotage qui vient d'être terminé,
    • et des forces de formation de boucles agissant lors du procédé de tricotage, lors du maintien vers le bas de boucles au niveau de l'arête de maintien vers le bas (10) de la platine (1), lesquelles forces agissent vers le haut dans la direction verticale de la platine (H),
    caractérisé par
    • au moins une paire fonctionnelle, à l'aide de laquelle peut être exercée sur la platine (1) une force (7) agissant vers le bas dans une direction verticale de la platine (H) qui s'étend perpendiculairement à la direction longitudinale de la platine (L) lors du fonctionnement de tricotage,
    • l'au moins une paire fonctionnelle comprenant au moins un premier élément partiel (6) qui est associé à la platine (1) et au moins un deuxième élément partiel (18) qui est associé à l'un des autres éléments du dispositif de tricotage (14),
    • le premier élément partiel (6) et/ou le deuxième élément partiel (18) étant de préférence un élément ressort (22),
    • et la platine (1) pouvant être précontrainte dans la direction verticale de la platine (H) par la force (7), pouvant être exercée, de la paire fonctionnelle dans le dispositif de tricotage (14), afin de compenser les forces de formation de boucles.
  8. Dispositif de tricotage (14) selon l'une des revendications précédentes,
    caractérisé en ce que
    le premier élément partiel (6) et/ou le deuxième élément partiel (18) présente(nt) une surface de contact (31) qui forme avec la direction longitudinale de la platine (L) un angle de pente (20), l'angle de pente (20) de la surface de contact (31) étant supérieur à 0 degré au moins à un point de son étendue longitudinale dans la direction longitudinale de la platine (L).
  9. Dispositif de tricotage (14) selon la revendication précédente,
    caractérisé en ce que
    l'angle de pente (20) de la surface de contact (31) vaut de 0,5 degré à 22 degrés, de préférence cependant de 2 degrés à 10 degrés.
  10. Dispositif de tricotage (14) selon l'une des revendications précédentes,
    caractérisé en ce que
    la platine (1), pendant son mouvement de tricotage, peut adopter au moins deux positions dans lesquelles la force (7) exercée par la paire fonctionnelle sur la platine (1) est d'amplitude différente.
  11. Dispositif de tricotage (14) selon l'une des revendications précédentes,
    caractérisé en ce que
    la force (7) vaut de 40 cN à 100 cN, de préférence cependant de 50 cN à 70 cN dans une position de maintien vers le bas de la platine (1), la platine (1) étant sortie au maximum vers l'avant dans la direction longitudinale de la platine (L) vers le porte-aiguilles (15) dans la position de maintien vers le bas.
  12. Dispositif de tricotage (14) selon l'une des revendications précédentes,
    caractérisé en ce que
    le premier élément partiel (6) et/ou le deuxième élément partiel (18) est/sont un élément ressort (22) qui est déformé élastiquement le plus fortement dans la position de maintien vers le bas de la platine (1).
  13. Dispositif de tricotage (14) selon l'une des revendications précédentes,
    caractérisé par
    une came de platine (33) dans laquelle vient en prise l'au moins une platine (1) et qui est appropriée à entraîner l'au moins une platine (1) en un mouvement de tricotage alternatif dans la direction longitudinale de la platine (L),
    le deuxième élément partiel (18) soit faisant partie de la came de platine (33) soit étant monté sur la came de platine (33).
  14. Procédé de tricotage présentant les caractéristiques suivantes :
    • au moins une aiguille à tricoter (16) effectue des mouvements de tricotage dans lesquels l'aiguille à tricoter (16) se déplace de manière alternative le long d'une direction longitudinale d'aiguille (N) qui s'étend le long de la tige d'aiguille (23),
    • au moins une platine (1) effectue des mouvements de tricotage dans lesquels la platine (1) se déplace de manière alternative le long de la direction longitudinale de sa tige (2), c'est-à-dire la direction longitudinale de la platine (L),
    • la tige (2) présentant, à son extrémité avant (5) dans sa direction longitudinale de la platine (L), au moins un moyen de formation de boucles (3) qui est en contact avec le fil dans le fonctionnement de tricotage et qui participe à la formation de boucles,
    • l'au moins un moyen de formation de boucles (3) étant une arête de maintien vers le bas (10) servant à maintenir vers le bas le tricotage qui vient d'être terminé,
    • et des forces de formation de boucles agissant lors du maintien vers le bas de boucles au niveau de l'arête de maintien vers le bas (10) de la platine (1), lesquelles forces agissent vers le haut dans la direction verticale de la platine (H),
    caractérisé en ce que
    • l'au moins une platine (1), au moins pendant une phase de son mouvement de tricotage, est sollicitée par une force (7) agissant vers le bas dans une direction verticale de la platine (H) qui s'étend perpendiculairement à la direction longitudinale de la platine (L), par la coopération d'un premier élément partiel (6) et d'un deuxième élément partiel (18) d'une paire fonctionnelle,
    • le premier élément partiel (6) et/ou le deuxième élément partiel (18) étant de préférence un élément ressort (22),
    • la platine (1) étant précontrainte dans la direction verticale de la platine (H) par la force (7) exercée de la paire fonctionnelle dans le dispositif de tricotage (14), afin de compenser les forces de formation de boucles,
    • et le premier élément partiel (6) étant associé à la platine (1).
  15. Procédé de tricotage selon la revendication précédente,
    caractérisé en ce que
    la force (7) augmente au moins pendant une phase, orientée de préférence en direction de l'au moins un moyen de formation de boucles (3), du mouvement de tricotage de la platine (1).
  16. Procédé de tricotage selon l'une des revendications précédentes,
    caractérisé en ce que
    le premier élément partiel (6) et/ou le deuxième élément partiel (18) est/sont un élément ressort (22) qui est élastique dans la direction verticale de la platine (H), et en ce que l'élément ressort (22) est déformé élastiquement par le mouvement de tricotage de la platine (1) dans la direction longitudinale de la platine (L) et par contact avec le premier élément partiel (6) ou le deuxième élément partiel (18) dans la direction verticale de la platine (H), de telle sorte que l'élément ressort (22) exerce une force de ressort dans la direction verticale de la platine (H).
EP21175764.6A 2021-05-25 2021-05-25 Platine, dispositif de tricotage et procédé de tricotage destinés à la production de produits en maille Active EP4095297B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP21175764.6A EP4095297B1 (fr) 2021-05-25 2021-05-25 Platine, dispositif de tricotage et procédé de tricotage destinés à la production de produits en maille
PT211757646T PT4095297T (pt) 2021-05-25 2021-05-25 Platina, dispositivo de tricotagem e processo de tricotagem para produzir artigos de malha
TW111115677A TW202300745A (zh) 2021-05-25 2022-04-25 申克片、針織裝置與用於生產針織物的針織方法
CN202280037073.0A CN117355641A (zh) 2021-05-25 2022-04-26 用于产生针织品的沉降片、针织装置和针织方法
JP2023572964A JP2024519163A (ja) 2021-05-25 2022-04-26 編み物を製造するためのシンカー、編み装置、および編み方法
PCT/EP2022/061075 WO2022248143A1 (fr) 2021-05-25 2022-04-26 Platine, dispositif de tricotage et procédé de tricotage destinés à la production de tricots
KR1020237042162A KR20240012419A (ko) 2021-05-25 2022-04-26 편직물을 제조하기 위한 싱커, 편직 디바이스 및 편직 방법

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EP21175764.6A EP4095297B1 (fr) 2021-05-25 2021-05-25 Platine, dispositif de tricotage et procédé de tricotage destinés à la production de produits en maille

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EP4095297B1 true EP4095297B1 (fr) 2023-08-09

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Country Link
EP (1) EP4095297B1 (fr)
JP (1) JP2024519163A (fr)
KR (1) KR20240012419A (fr)
CN (1) CN117355641A (fr)
PT (1) PT4095297T (fr)
TW (1) TW202300745A (fr)
WO (1) WO2022248143A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1247887A1 (fr) * 1999-11-17 2002-10-09 Shima Seiki Mfg., Ltd Dispositif a platine de machine a tricoter rectiligne

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB349443A (fr) 1929-03-05 1931-05-26 Hemphill Company
CS149388B1 (fr) 1970-12-07 1973-07-05
US6176107B1 (en) 1999-05-27 2001-01-23 Monarch Knitting Machinery Corp. Circular knitting machine with replaceable member for restricting vertical movement of sinkers
DE10015730B4 (de) * 2000-03-29 2012-09-13 Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh Platine für eine insbesondere nach der Relativtechnik arbeitende Strickmaschine und mit einer derartigen Platine ausgerüstete Strickmaschine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1247887A1 (fr) * 1999-11-17 2002-10-09 Shima Seiki Mfg., Ltd Dispositif a platine de machine a tricoter rectiligne

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WO2022248143A1 (fr) 2022-12-01
CN117355641A (zh) 2024-01-05
JP2024519163A (ja) 2024-05-08
EP4095297A1 (fr) 2022-11-30
KR20240012419A (ko) 2024-01-29
TW202300745A (zh) 2023-01-01
PT4095297T (pt) 2023-11-10

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