EP0859881B1 - Plate for selecting and controlling knitting movements of knitting tools in a knitting machine - Google Patents

Plate for selecting and controlling knitting movements of knitting tools in a knitting machine Download PDF

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Publication number
EP0859881B1
EP0859881B1 EP96933436A EP96933436A EP0859881B1 EP 0859881 B1 EP0859881 B1 EP 0859881B1 EP 96933436 A EP96933436 A EP 96933436A EP 96933436 A EP96933436 A EP 96933436A EP 0859881 B1 EP0859881 B1 EP 0859881B1
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EP
European Patent Office
Prior art keywords
control
spring
sinker
base
knitting
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EP96933436A
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German (de)
French (fr)
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EP0859881A1 (en
Inventor
Claus Kowitz
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Hans Ruester and Co GmbH
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Hans Ruester and Co GmbH
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Publication of EP0859881A1 publication Critical patent/EP0859881A1/en
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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
    • D04B15/66—Devices for determining or controlling patterns ; Programme-control arrangements
    • D04B15/68—Devices for determining or controlling patterns ; Programme-control arrangements characterised by the knitting instruments used

Definitions

  • the invention relates to a control board, which at a a variety (e.g. 2000) of knitting tools Knitting machine each one of the knitting tools as a control element is assigned, and with the others, in generic term of claim 1, generic Characteristics.
  • the board carrier contains a large number of boards, e.g. 2000, in open edge, radial grooves, with the central longitudinal axis of the plate carrier parallel, vertical Course, equidistant in the azimuthal direction, side by side are arranged, being in each of these grooves a board is slidably arranged up and down.
  • the boards are provided with sprouting feet that cross Contour edges running to the board guiding direction have, by sliding over one with an output edge provided stator drive lock part Deflections of the control boards can be controlled.
  • the control boards by the effect of a minimum bias one each from a base body of the board outgoing, the basic shape elongated rod-shaped Control spring, the free end of which at the bottom of the Guide groove of the control board is slidably supported in the engagement position mediating the deflection drive of their expulsion foot with the expulsion edge of the expulsion lock part of the lock bearer.
  • Such a control board is known from WO 94/03668 known.
  • the control spring has most of its length, that of its free end extends to a spring section close to the base with which the control spring connects to the main body of the board, a constant width. Only within the base Spring section that extends over about 1/5 of their Total length extends, the width of the control spring increases to about twice the value of their free end given width.
  • the control spring is opposite to that Steering shaft of the board separated by a narrow slot the slot width over about half the length seen the control spring is constant and then grows towards the free end of the spring, the Slot width in the closer to the board body Range approximately corresponds to the width of the spring that it has the major part of its length.
  • the known control board is because of it described form, of which in the relaxed state the shape given to the board deviates slightly at most, suffers from at least the following disadvantages.
  • the object of the invention is therefore a circuit board of the beginning to improve the type mentioned in such a way that high quality and long service life with cheap low manufacturing costs can be produced.
  • This object is achieved in that the width (h a ) of the control spring at its free end between 80% and 120% and at the base between 150% and 250% of the material thickness of the board and varies continuously between them, and that the radius of curvature , with which the control spring connects smoothly to the base body and to the control shaft of the board between 1.5 times and twice the value of the base width of the control spring.
  • the resulting shape of the circuit board and its control spring with a widening with smooth curvature and also with a smooth curvature in the main body of the board transitional design of the base area of the spring has the advantage that notch effects in the base area of the Control spring and wear-related wear in the connection area the spring to the main body of the board can be practically avoided completely and thus favorable long service life of the circuit board according to the invention are reachable.
  • the board can be in an advantageous design, which also the uniformity of the distribution of the preload the spring serves over its length, be designed that the control spring in the extended position of the board parallel or approximately parallel to an elongated one
  • the steering shaft of the board runs on a middle one Section of its length at its end facing away from the spring end Longitudinal side is provided with the expulsion foot, and that the control spring in its relaxed configuration, which it takes up before installation in the board carrier, has a curvature pointing away from the shaft, the radius of curvature thereof is greater than the length of the spring and the 5 times to 8 times the spring length, preferably about which corresponds to 6.5 times the value.
  • the spring base from which the smooth curvature begins with which the control spring in the Board base body and the support end of the spring longitudinally extending control shaft of the board passes, also with a smooth curvature to one of the board base outgoing, on the tax shaft opposite side of the spring, connecting nose pointing towards the free end of the spring, the side facing away from the control spring with a an obtuse-angled marking of the board Support edge is provided with which they are at the bottom of a Guide groove is supported, and that the radii of curvature, with which the base of the control spring smooth on the neighboring Tax shaft and support nose connects, amounts between the value of the base width of the spring and its 1.5 times the value, preferably approximately 1.1 times the value have the same.
  • the length 1b of the portion of the control spring which is close to the base and extends between the support nose and the control shaft of the circuit board, preferably between 7% and 15% of the spring length L ' F by 10% of the same.
  • the circuit board according to the invention is, in particular for a Use in an embroidery machine as a control for the selection and control of stitch-forming movements suitable for knitting tools.
  • 1a and 1b is a total of 10 each by parts of her needle cylinder 11 and her lock cylinder 12 represented circular knitting machine, the works with electronically controllable selection of the needles 13, which are programmable for stitch formation in the sense of achieving one predetermined knitting pattern can be used.
  • the knitting machine 10 is of the type in which the Needle cylinder 11 rotating about a central vertical axis 14 is drivable and the lock cylinder 12, the stator the circular knitting machine 10, the needle cylinder 11 coaxial encloses.
  • the needles 13 are equidistant in the circumference of the needle cylinder Distributed needle channels 16 vertically up and down performed, these needle channels as to the lock cylinder 12 open, narrow grooves are formed, the are individually assigned to the needles 13.
  • this 2000 needles 13th and have needle channels 16 which e.g. on 40 knitting units are distributed, on each of which a thread is processed.
  • the vertical opening and closing required for stitch formation Down movements of the needles 13, the rotational movement of the Needle cylinders are superimposed by the sliding form-fitting Intervention of radial control feet, not shown the needles 13 also for the sake of simplicity Needle lock tracks of the lock cylinder, not shown 12 controlled.
  • individually assigned control boards 17 are provided for the needles 13, which in turn consist of a - as it were - Inactive state of the corresponding needle 13 corresponding to it, shown in FIG. 1a, in a concentric position, can be brought into a selection position shown in FIG.
  • Control board 17 shown in the relaxed state is punched out of a spring steel strip, which is a typical Thickness between 0.4 and 0.6 mm, which is a slight greater clear width of the grooves forming the needle channels 16 of the needle cylinder 11 corresponds.
  • the board 17, its design in all essential details the scale representation of FIG. 2 can be removed is, has a trapezoidal shape Base body 18, from the needle end of the control board 17 a one-sided projecting, beard-shaped extension 19 goes out, the needle-side transverse edge 21 with the end edge 22 of the base body 18 is aligned and with a 90 ° only slightly different obtuse angles to the one in the illustrated functional positions of the board 17 radially internally arranged oblique leg edge 23 of the base body 18 of the control board 17 connects.
  • This angle is slightly larger as a tilt angle ⁇ (FIG. 1a) around which the control board 17th within the needle channel 16 from that shown in Fig. 1a Concentricity up to that shown in Fig. 1b Expulsion position can be tilted in the radially inner oblique leg edge 23 of the base body 18 on Base 25 of the groove-shaped needle channel 16 abuts.
  • the fulcrum 27 of this possible tilting movement of the control board 17 is through marked an obtuse-angled corner edge on which the radially inner oblique leg edge 23 of the base body 18 with one of 180 ° only slightly different obtuse angles to the radial inner, straight longitudinal edge 28 of an in Longitudinal direction of the control board 17 only a short base section Connect 29 of them.
  • the base region 36 of the control leg 34 is the one, in relation to the length L S of the control leg 34, of a short circuit section within which the radially outer straight longitudinal edge 39 collinearly adjoins the straight outer longitudinal edge 31 of the base section 29, on the one hand, and, on the other hand, his radially inner longitudinal edge 41, which, in the vicinity of the base region 36 parallel to the outer longitudinal edge 39 of the control arm 34, adjoins the radially outer longitudinal edge 43 of the spring arm 37 with a semicircular contour, the extension of its base region 36 measured in the longitudinal direction of the control arm 36 being the radius of curvature R 1 corresponds to the curved contour 42. In a typical design of the control board 17, this radius of curvature has a value of 1.5 mm.
  • the base area 38 of the spring leg 37 is the length L F of the control board, within the length of the control board, compared to the length L F measured between the base 44 of the spring leg 37 and its free support end 46, with which it can be supported on the groove base 25 of the needle channel 16 the radially inner longitudinal edge 47 of the spring leg 37 with a smoothly curved course of its radially inner contour connects smoothly to the radially inner, straight longitudinal edge 28 of the base region 29, the curved contour region with which the radially inner longitudinal edge 47 of the spring leg 37 smoothly adjoins the radial inner straight longitudinal edge 28 of the base region 29 connects, has a spring-side section 49 with a concave curvature and a base section-side section with a convex curvature, the radii of curvature R 2 and R 3 of which have the same amount that has a value of around 2 mm in a typical design of the control board 17 , with both curvature marks rich 49 and 51, viewed from the respective center of curvature 52 or 53,
  • the distance a of the base 44 running at right angles to the neutral bending line 54 of the spring leg 37 from that parallel to the base line 33 of the base body 18 is Control board 17 extending tangent 56 to the curved contour area 42, with which the radially inner longitudinal edge 41 of the control leg 34 connects to the base section 29 of the control board 17 and the base section 38 of its spring leg 37, the concave / convexly curved contour area 48 of this base section 38 at the intersection of the tangent 56 with the radially inner contour 47, 48, 28, 23 of the control board 17 smoothly adjoins the straight, radially inner longitudinal edge 28 of the base section 29 of the control board 17.
  • the distance a 2 of the base line 58 of the control arm 24 from the tangent 56, which corresponds to the radius of curvature R 1 is designated.
  • control plate 17 runs the neutral bending line 54 of their spring leg 37 in the area of the base 44 of the same parallel or approximately parallel to those in turn parallel mutually extending longitudinal edges 39 and 41 of the control leg 34, with which this on its base portion 36 connects.
  • the effective length L F of the spring leg 37 measured between the spring base 44 and the free support end 46 of the spring leg 37, which has a convex curvature in the region of the support point, is slightly greater than half the effective length L S of the control leg 34 measured between its base line 58 and its free edge 59.
  • the spring leg 37 In the relaxed state of the spring leg 37 shown in FIG. 2, the spring leg 37 has a weak curvature pointing away from the control leg 34, the average radius of curvature of which corresponds to the course of the neutral bending line 54 and has a value which is approximately 4.5 times that Spring length L F corresponds.
  • the width h measured perpendicular to the neutral bending line 54 continuously decreases, the leg width h b at the base 44 of the spring leg 37 being approximately 1.8 times the value of the spring leg width h a am free support end 46 of the spring leg 37 corresponds.
  • the control leg 34 has one on its radially outer side to the lock cylinder 12 pointing, flag-shaped projection 61, through which the base region 36 of the control leg outgoing, straightforward beginning section 62 of the control leg 34 against one over the end of the spring leg 37 protruding support section 63 set whose radially outer, i.e.
  • the basic shape slim trapezoidal, forming a "radial" support leg End portion of the control leg 34 communicates itself Middle region extending about 2/5 of the length of the support portion 63 the same, whose width b 'is somewhat smaller than the width of the start portion 62 of the support leg 34 and about 80% of the same.
  • Control board 17 takes this its lowest in the needle channel 16 Position in which the output foot 61 in the needle channel 16 is pushed in and with its straightforward extending longitudinal edge 66 on a cylinder jacket-shaped, radially inner peripheral region of the drive-out lock part 73 is slidably supported radially, while that with the Needle cylinder 11 rotating control board 17 on this cylinder jacket-shaped Circumferential area 74 passes, the end portion 68 of the control leg 34 with its radially inner Longitudinal edge 69 in contact with a permanent magnet 76 of the respective knitting system of the circular knitting machine on which the support foot 68 of the control board 17 is slidably supported is.
  • This permanent magnet 76 exerts on the support leg 68 of the control leg 34 an attractive force that is sufficient around the tax leg against the - repulsive - force of the the basic running position is maximally pre-tensioned by the spring leg 37 formed control spring of the control board 17th to keep in touch with him.
  • the control magnet assembly 70 of the respective knitting system further comprises - only schematically indicated - excitable by means of a control current Magnetic coil 77, through the excitation of which the attractive Magnetic force to cancel the permanent magnet 76 Opposing field can be generated so that when the magnet coil 77 is excited, the control leg 34 of the control board 17 by the effect of its control spring 37 in that shown in Fig.
  • the drive lock part 73 seen in the azimuthal direction, one by at least the amount of the stroke by which the Control board 17 in the needle channel 16 can be moved up and down is, periodically varying height, with ascending and descending as well as horizontally running sections of the blade-shaped Leading edge 79 of the drive lock part 73 smooth - "wavy" - connect to each other.
  • a selection control of the control board 17 to raise it from the concentric position shown in FIG is always possible if the control board on a Area of lower height of the drive lock part 73 passes by, at which the leading edge 79 of the drive lock part 73, as shown in dashed lines, below the corner edge 82 of the board output foot 61 runs on the whose oblique support edge 71 to its free longitudinal edge 66 connects.
  • Control board 17 ' is in accordance with the control board 17 Fig. 2 is functionally analogous and only differs from this by designing the transition areas over which the control leg 34 'and the spring leg 37' to the Connect the main body 18 'of the control board 17', its design otherwise the same as with the control board 17 described in FIG. 2. So far the same in FIG. 3 Reference numerals are used as in Fig. 2, without the elements of the control board 17 'designated hereby the explanations are specifically mentioned, this is the reference on their description given with reference to FIG. 2.
  • control board 17 ' for the purpose of explanation, assuming that instead of the control board 17 according to 2 can be used in knitting machine 10 with the same function and accordingly the orientation and length of the sloping leg edges 23 and 26 of their trapezoidal Base body 18 ', the between the tilting edge 27 and the this opposite obtuse-angled corner edge 32 measured Basic width a, the designs of your return foot 19, their Austriebsfußes 61, whose in the direction of displacement Control board 17 'measured distances from each other and the arrangement the support end 46 of the spring leg 37 'with respect of the output foot 61 of the control board 17 'are the same as with the control board 17 according to FIG. 2.
  • Different compared to this are in the board 17 'of FIG. 3 following details:
  • the distance between the base 33 'of the spring leg 37', up to which the radially outer longitudinal edge 43 and the radially inner longitudinal edge 47 of the spring leg, as seen in its illustrated, relaxed state, between the free support end 46 and the spring base 33 'with a constant radius of curvature extend from the end face edge 22 of the trapezoidal base body 18 'of the control board 17' is smaller than the distances of the obtuse-angled corners 27 and 32 of the board base body 18 'measured from this end face edge 22.
  • the base 33 'of the spring leg 37' is, as it were, 'laid' into the base body 18 ', so that, compared with the exemplary embodiment according to FIG.
  • the base width h '/ b of the spring leg 37' is only about 20% larger than its width h a at the free support end 46.
  • the on the groove bottom 25 of the control board 17 'receiving Needle channel 16 supportable, the fulcrum around which the board 17 'is tiltable, marking, obtuse-angled edge 27 on a, measured from the spring base 33 ', over about 1/10 of the spring leg length L '/ F extending support lug 83 arranged, the spring leg 37 'facing radially outer longitudinal edge 84 in the base region 33 'parallel to the neutral bending line 54 'of the spring leg 37'.

Abstract

PCT No. PCT/EP96/04284 Sec. 371 Date Jun. 11, 1998 Sec. 102(e) Date Jun. 11, 1998 PCT Filed Oct. 1, 1996 PCT Pub. No. WO97/17486 PCT Pub. Date May 15, 1997A control plate (17) for selecting and controlling knitting movements of tools in a knitting machine driven by the relative movements of the plate support (11) and a cam support (12), in which the control plate can be forced into an engagement position of a drive output foot (61) of the control plate with an output drive edge of an output drive component (73) to transmit the deflection drive by the action of a minimum pre-tension of an extended rod-shaped control spring (37), the free end of which is supported to slide on the base of a guide groove (16) accepting the control plate, is constructed as a one-piece spring steel component to simplify manufacture and increase its wear resistance, in which its width (h) measured perpendicularly to the neutral elastic line (54) of the control spring (37) at the base side of the spring at which it bears on the basic body (18) of the plate is greater than at the free end (48) of the spring by which the spring is supported on the base (25) of its guide groove (16), where the spring (17) bears on the basic body of the plate via a smooth curve widening the base region.

Description

Die Erfindung betrifft eine Steuerplatine, die bei einer eine Vielzahl (z.B. 2000), von Strickwerkzeugen umfassenden Strickmaschine je einem der Strickwerkzeuge als Steuerelement zugeordnet ist, und mit den weiteren, in Oberbegriff des Patentanspruchs 1 genannten, gattungsbestimmenden Merkmalen.The invention relates to a control board, which at a a variety (e.g. 2000) of knitting tools Knitting machine each one of the knitting tools as a control element is assigned, and with the others, in generic term of claim 1, generic Characteristics.

Bei derartigen Strickmaschinen, z.B. Rundstrickmaschinen, die einen zylindrischen Platinenträger haben, der mit vertikalem Verlauf seiner zentralen Achse um diese rotatorisch antreibbar ist und innerhalb eines den Platinenträger koaxial umgebenden, der äußeren Form nach zylindermantelförmigen Stators der Maschine angeordnet ist, enthält der Platinenträger eine Vielzahl von Platinen, z.B. 2000, die in randoffenen, Radialnuten, die mit zur zentralen Längsachse des Plattenträgers parallelem, vertikalem Verlauf, in azimutaler Richtung äquidistant, nebeneinander angeordnet sind, wobei in jeder dieser Nuten eine Platine auf- und ab verschiebbar angeordnet ist.In such knitting machines, e.g. Circular knitting machines, which have a cylindrical board carrier that with vertical course of its central axis around this rotatory is drivable and within a the board carrier coaxially surrounding, the outer shape according to cylindrical jacket Stator of the machine is arranged the board carrier contains a large number of boards, e.g. 2000, in open edge, radial grooves, with the central longitudinal axis of the plate carrier parallel, vertical Course, equidistant in the azimuthal direction, side by side are arranged, being in each of these grooves a board is slidably arranged up and down.

Zum diesbezüglichen Steuerantrieb der Platinen, der durch rotatorische Relativbewegungen des Platinentragers zu dem als Schloßträger ausgebildeten Maschinen-Stator erfolgt, sind die Platinen mit Austriebsfüßen versehen, die quer zur Platinen-Führungsrichtung verlaufende Konturenkanten haben, durch deren Hinweggleiten über ein mit einer Austriebskante versehenes Austriebsschloßteil des Stators die Auslenkungen der Steuerplatinen gesteuert werden. Hierbei werden die Steuerplatinen durch die Wirkung einer Mindestvorspannung je einer von einem Grundkörper der Platine ausgehenden, der Grundform nach langgestrecktstabförmigen Steuerfeder, deren freies Ende am Grund der Führungsnut der Steuerplatine gleitend abgestützt ist, in die den Auslenkungsantrieb vermittelnde Eingriffsstellung ihres Austriebsfußes mit der Austriebskante des Austriebsschloßteils des Schloßträgers gedrängt. Sie sind des weiteren durch kraft-formschlüssig wirkende Steuerelemente des Schloßträgers und des Platinenträgers in eine Grundstellung drängbar, in der der Antriebseingriff ihres Austriebsfußes mit der Austriebskante des Austriebsschloßteils aufgehoben ist. In dieser Grundstellung sind die Platinen durch die Haltekraft einer Permanentmagetanordnung fixierbar, deren Haltewirkung durch kompensatorische Ansteuerung einer elektronisch steuerbaren Magnetanordnung aufhebbar ist, so daß die Platinen durch die Wirkung der Steuerfedern zur Einnahme der Austriebsstellung freigebbar sind.For the related control drive of the boards, by rotational relative movements of the board carrier to the machine stator designed as a lock carrier, the boards are provided with sprouting feet that cross Contour edges running to the board guiding direction have, by sliding over one with an output edge provided stator drive lock part Deflections of the control boards can be controlled. Here the control boards by the effect of a minimum bias one each from a base body of the board outgoing, the basic shape elongated rod-shaped Control spring, the free end of which at the bottom of the Guide groove of the control board is slidably supported in the engagement position mediating the deflection drive of their expulsion foot with the expulsion edge of the expulsion lock part of the lock bearer. they are furthermore by force-locking controls the lock carrier and the circuit board carrier in one Home position urgent, in which the drive intervention of your Expulsion foot with the expulsion edge of the expulsion lock part is canceled. In this basic position are the boards by the holding force of a permanent magnet arrangement fixable, their holding effect by compensatory Control of an electronically controllable magnet arrangement can be canceled so that the boards through the effect of the control springs to take the expulsion position can be released.

Eine derartige Steuerplatine ist durch die WO 94/03668 bekannt.Such a control board is known from WO 94/03668 known.

Bei der bekannten Steuerplatine hat die Steuerfeder auf dem größten Teil ihrer Länge, der von ihrem freien Ende bis zu einem basisnahen Federabschnitt reicht, mit dem die Steuerfeder an den Grundkörper der Platine anschließt, eine konstante Breite. Erst innerhalb des basisnahen Federabschnitts, der sich über etwa 1/5 ihrer Gesamtlänge erstreckt, nimmt die Breite der Steuerfeder auf etwa den doppelten Wert ihrer an ihrem freien Ende gegebenen Breite zu. Die Steuerfeder ist gegenüber dem Steuerschaft der Platine durch einen schmalen Schlitz abgesetzt, dessen Schlitzweite über etwa die halbe Länge der Steuerfeder hinweg gesehen konstant ist und sodann zum freien Ende der Feder hin anwächst, wobei die Schlitzweite in dem dem Platinen-Grundkörper näher gelegenen Bereich etwa der Breite der Feder entspricht, die diese auf dem überwiegenden Teil ihrer Länge hat. Die zum Grundkörper der Platine hin parallel zueinander verlaufenden Schlitzwangen gehen mit glatter Krümmung, deren Radius somit etwa der halben Breite der Steuerfeder an deren freiem Ende beträgt, d.h. mit einem sehr kleinen Krümmungsradius, glatt ineinander über. Innerhalb des Längenabschnitts der Platine, dessen Länge gleich diesem Krümmungsradius ist, entspricht der Krümmungsradius höchstens ¼ der dort vorhandenen Breite des basisnahen Federabschnitts.In the known control board, the control spring has most of its length, that of its free end extends to a spring section close to the base with which the control spring connects to the main body of the board, a constant width. Only within the base Spring section that extends over about 1/5 of their Total length extends, the width of the control spring increases to about twice the value of their free end given width. The control spring is opposite to that Steering shaft of the board separated by a narrow slot the slot width over about half the length seen the control spring is constant and then grows towards the free end of the spring, the Slot width in the closer to the board body Range approximately corresponds to the width of the spring that it has the major part of its length. The for Basic body of the board running parallel to each other Slotted cheeks go with a smooth curve, their Radius thus about half the width of the control spring the free end of which is with a very small one Radius of curvature, smooth into each other. Within the Length section of the board, the length of which is equal to this Is the radius of curvature, the radius of curvature corresponds at most ¼ of the width of the spring section close to the base.

Die bekannte Steuerplatine ist aufgrund ihrer insoweit geschilderten Form, von der die im entspannten Zustand der Platine gegebene Form allenfalls geringfügig abweicht, mit zumindest den folgenden Nachteilen behaftet.The known control board is because of it described form, of which in the relaxed state the shape given to the board deviates slightly at most, suffers from at least the following disadvantages.

Ungeachtet einer grundsätzlichen Eignung der bekannten Platine zu einer Herstellung derselben als einstückiges Teil durch Stanzen oder Feinschneiden, ist diese Art der Herstellung problematisch, da sie wegen der geringen Schlitzweite zwischen dem Steuerschaft und der Steuerfeder zu einem hohen Verschleiß am Stanz- bzw. Schneidwerkzeug führt, mit der auch Fertigungs-Ungenauigkeiten einhergehen, die dazu führen, daß die Herstellung der Platine mit einem verhältnismäßig hohen Ausschuß behaftet ist. Es kommt hinzu, daß wegen des kleinen Krümmungsradius im Bereich des Schlitzgrundes Material-Ermüdungserscheinungen, die bei den zahlreichen Federhüben unvermeidbar sind, zu einem Einreißen des Platinen-Grundkörpers im Bereich des Schlitzgrundes führen können, wodurch die Standzeit der Platine begrenzt wird. Wohl aus diesem Grund haben sich Steuerplatinen der bekannten Art bislang auf dem einschlägigen Markt gegenüber Steuerplatinen, wie durch die DE-39 15 684 C1 weiter bekannt, bei denen die Steuerfedern als separat gefertigte Teile ausgebildet sind, die an dem im übrigen als Stanzteil herstellbaren Platinenkörper befestigt werden müssen und insoweit fertigungstechnisch aufwendiger sind, nicht durchsetzen können.Notwithstanding a basic suitability of the known Circuit board for producing the same as a single piece Part by stamping or fineblanking is this type of Manufacturing problematic because of the low Slot width between the steering shaft and the control spring high wear on the punching or cutting tool leads to manufacturing inaccuracies, which lead to the manufacture of the circuit board is afflicted with a relatively high committee. In addition, because of the small radius of curvature in Area of the slot base material fatigue, that with the numerous spring strokes are unavoidable, tearing of the board body can lead in the area of the slot base, which limits the life of the board. Well out for this reason, control boards of the known type so far on the relevant market compared to tax boards, as further known from DE-39 15 684 C1, at which the control springs are designed as separately manufactured parts are, which can be produced on the rest as a stamped part Board body must be attached and so far are technically more complex, do not enforce can.

Aufgabe der Erfindung ist es daher, eine Platine der eingangs genannten Art dahingehend zu verbessern, daß sie in hoher Qualität und hoher Standzeit bei gleichwohl günstig niedrigen Herstellungskosten herstellbar ist.The object of the invention is therefore a circuit board of the beginning to improve the type mentioned in such a way that high quality and long service life with cheap low manufacturing costs can be produced.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Breite (ha) der Steuerfeder an ihrem freien Ende zwischen 80% und 120% und an der Basis zwischen 150% und 250% der Materialdicke der Platine beträgt und dazwischen kontinierlich variiert, und daß der Krümmungsradius, mit dem die Steuerfeder glatt an den Grundkörper und an den Steuerschaft der Platine anschließt zwischen dem 1,5-fachen und dem doppelten Wert der Basisbreite der Steuerfeder beträgt.This object is achieved in that the width (h a ) of the control spring at its free end between 80% and 120% and at the base between 150% and 250% of the material thickness of the board and varies continuously between them, and that the radius of curvature , with which the control spring connects smoothly to the base body and to the control shaft of the board between 1.5 times and twice the value of the base width of the control spring.

Die hierdurch bedingte Form der Platine und ihrer Steuerfeder mit einem sich mit glatter Krümmung erweiternden und auch mit glatter Krümmung in den Grundkörper der Platine übergehenden Gestaltung des Basisbereiches der Feder hat den Vorteil, daß Kerbwirkungen im Basisbereich der Steuerfeder und ein belastungsbedingter Verschleiß im Anschlußbereich der Feder an den Grundkörper der Platine praktisch vollkommen vermieden werden können und somit günstig hohe Standzeiten der erfindungsgemäßen Platine erreichbar sind.The resulting shape of the circuit board and its control spring with a widening with smooth curvature and also with a smooth curvature in the main body of the board transitional design of the base area of the spring has the advantage that notch effects in the base area of the Control spring and wear-related wear in the connection area the spring to the main body of the board can be practically avoided completely and thus favorable long service life of the circuit board according to the invention are reachable.

Dies gilt auch mit Bezug auf die von der Basisseite der Feder bis zu deren freiem Ende hin vorgesehene - abnehmende Dimensionierung ihrer Breite, wodurch zum einen eine gleichmäßige Verteilung der Biegebelastung über die Länge der Steuerfeder und zum anderen die Vorgabe einer erwünschten Kraft-/Federweg-Kennlinie der Feder vorgebbar ist, die ein günstiges, insbesondere rasches, (Schalt)Ansprechverhalten der Feder ergibt.This also applies to those from the base of the Spring provided to its free end - decreasing Dimensioning its width, which on the one hand even distribution of the bending load over the Length of the control spring and on the other hand the specification of a desired force / spring characteristic of the spring can be specified is a favorable, especially fast, (switching) response the spring results.

Die Platine kann in vorteilhafter Gestaltung, die ebenfalls der Gleichmäßigkeit der Verteilung der Vorspannung der Feder über deren Länge dient, so ausgebildet sein, daß die Steuerfeder in der Austriebsposition der Platine parallel oder annähernd parallel zu einem langgestreckten Steuerschaft der Platine verläuft, der auf einem mittleren Abschnitt seiner Länge an seiner dem Federende abgewandten Längsseite mit dem Austriebsfuß versehen ist, und daß die Steuerfeder in ihrer entspannten Kontiguration, die sie vor dem Einbau in den Platinenträger einnimmt, eine von dem Schaft wegweisende Krümmung hat, deren Krümmungsradius größer ist, als die Länge der Feder und dem 5-fachen bis 8-fachen der Federlänge, vorzugsweise etwa deren 6,5-fachem Wert entspricht.The board can be in an advantageous design, which also the uniformity of the distribution of the preload the spring serves over its length, be designed that the control spring in the extended position of the board parallel or approximately parallel to an elongated one The steering shaft of the board runs on a middle one Section of its length at its end facing away from the spring end Longitudinal side is provided with the expulsion foot, and that the control spring in its relaxed configuration, which it takes up before installation in the board carrier, has a curvature pointing away from the shaft, the radius of curvature thereof is greater than the length of the spring and the 5 times to 8 times the spring length, preferably about which corresponds to 6.5 times the value.

Von einer Steuerplatine der eingangs genannten Art ausgehend, wird die der Erfindung zugrunde liegende Aufgabe auch dadurch gelöst, daß die Federbasis, ab welcher die glatte Krümmung beginnt, mit der die Steuerfeder in den Platinengrundkörper und den über das Abstützende der Feder in Längsrichtung hinausragenden Steuerschaft der Platine übergeht, ebenfalls mit glatter Krümmung an eine von dem Platinengrundkörper ausgehende, an der dem Steuerschaft gegenüberliegenden Seite der Feder angeordnete, zum freien Federende hin weisende Stütznase anschließt, die an ihrer der Steuerfeder abgewandten Seite mit einer eine Kippachse der Platine markierenden, stumpfwinkligen Abstützkante versehen ist, mit der sie am Grund einer Führungsnut abstützbar ist, und daß die Krümmungsradien, mit denen die Basis der Steuerfeder glatt an den benachbarten Steuerschaft und die Stütznase anschließt, Beträge zwischen dem Wert der Basisbreite der Feder und deren 1,5-fachem Wert, vorzugsweise etwa den 1,1-fachen Wert derselben haben.Starting from a control board of the type mentioned at the beginning, becomes the object underlying the invention also solved in that the spring base, from which the smooth curvature begins with which the control spring in the Board base body and the support end of the spring longitudinally extending control shaft of the board passes, also with a smooth curvature to one of the board base outgoing, on the tax shaft opposite side of the spring, connecting nose pointing towards the free end of the spring, the side facing away from the control spring with a an obtuse-angled marking of the board Support edge is provided with which they are at the bottom of a Guide groove is supported, and that the radii of curvature, with which the base of the control spring smooth on the neighboring Tax shaft and support nose connects, amounts between the value of the base width of the spring and its 1.5 times the value, preferably approximately 1.1 times the value have the same.

Hierdurch ergibt sich eine gleichsam in den Platinengrundkörper hinein versetzte Anordnung der Basis der Steuerfeder und, bei vorgegebenem Abstützpunkt ihres Federendes an dem Grund der Führungsnut, eine Verlängerung der Feder, die wiederum die Möglichkeit einer günstigen Spannungsverteilung über die Federlänge ergibt.This results, as it were, in the basic board body recessed arrangement of the base of the Control spring and, at a given support point of their spring end at the bottom of the guide groove, an extension the spring, which in turn has the possibility of a cheap one Stress distribution over the spring length results.

Zu diesem Zweck ist es, um eine deutlich erhöhte Standzeit der Feder zu erzielen, schon ausreichend wenn die Länge lb des sich zwischen der Stütznase und dem Steuerschaft der Platine erstreckenden, basisnahen Abschnitts der Steuerfeder zwischen 7% und 15% der Federlänge L'F vorzugsweise um 10% derselben beträgt.For this purpose, in order to achieve a significantly increased service life of the spring, it is already sufficient if the length 1b of the portion of the control spring, which is close to the base and extends between the support nose and the control shaft of the circuit board, preferably between 7% and 15% of the spring length L ' F by 10% of the same.

Bei dieser Gestaltung der Steuerplatine ist es zweckmäßig, wenn die Basis ihrer Steuerfeder jeweils mit demselben Krümmungsradius glatt an die ihr benachbarten, parallel oder nahezu parallel zu ihren Längsrändern verlaufenden Konturenkanten des Steuerschafts und der Sütznase anschließt.With this design of the control board, it is advisable if the base of their control spring is always the same Radius of curvature smooth to the neighboring, parallel or almost parallel to their longitudinal edges Contour edges of the steerer tube and the nose.

Die erfindungsgemäße Platine ist, insbesondere für eine Verwendung in einer Stickmaschine als Steuerelement für die Auswahl und die Steuerung maschenbildender Bewegungen von Strickwerkzeugen geeignet.The circuit board according to the invention is, in particular for a Use in an embroidery machine as a control for the selection and control of stitch-forming movements suitable for knitting tools.

Weitere Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen anhand der Zeichnung. Es zeigen:

Fig. 1a und 1b
alternative Funktionsstellungen einer erfindungsgemäßen Steuerplatine zur Erläuterung ihrer Funktion,
Fig. 2
die Steuerplatine gemäß den Fig. 1a und 1b in vergrößertem Maßstab und
Fig. 3
ein weiteres Ausführungsbeispiel in einer der Fig. 2 entsprechenden Darstellung.
Further details of the invention result from the following description of exemplary embodiments with reference to the drawing. Show it:
1a and 1b
alternative functional positions of a control board according to the invention to explain its function,
Fig. 2
the control board according to FIGS. 1a and 1b on an enlarged scale and
Fig. 3
a further embodiment in a representation corresponding to FIG. 2.

In den Fig. 1a und 1b ist jeweils insgesamt mit 10 eine durch Teile ihres Nadelzylinders 11 sowie ihres Schloßzylinders 12 repräsentierte Rundstrickmaschine bezeichnet, die mit elekronisch steuerbarer Auswahl der Nadeln 13 arbeitet, die für die Maschenbildung im Sinne der Erzielung eines programmierbar vorgegebenen Strickmusters ausgenutzt werden.1a and 1b is a total of 10 each by parts of her needle cylinder 11 and her lock cylinder 12 represented circular knitting machine, the works with electronically controllable selection of the needles 13, which are programmable for stitch formation in the sense of achieving one predetermined knitting pattern can be used.

Die Strickmaschine 10 ist von demjenigen Typ, bei dem der Nadelzylider 11 um eine zentrale vertikale Achse 14 rotatorisch antreibbar ist und der Schloßzylinder 12, den Stator der Rundstrickmaschine 10 bildend, den Nadelzylinder 11 koaxial umschließt.The knitting machine 10 is of the type in which the Needle cylinder 11 rotating about a central vertical axis 14 is drivable and the lock cylinder 12, the stator the circular knitting machine 10, the needle cylinder 11 coaxial encloses.

Die Nadeln 13 sind in über den Umfang des Nadelzylinders äquidistant verteilten Nadelkanälen 16 vertikal auf- und ab verschiebbar geführt, wobei diese Nadelkanäle als zum Schloßzylinder 12 hin offene, schmale Nuten ausgebildet sind, die den Nadeln 13 einzeln zugeordnet sind. In einer typischen Auslegung der Strickmaschine 10 kann diese 2000 Nadeln 13 und Nadelkanäle 16 haben, die z.B. auf 40 Strickeinheiten verteilt sind, an denen jeweils ein Faden verarbeitet wird. Die für die Maschenbildung erforderlichen vertikalen Auf- und Ab-Bewegungen der Nadeln 13, die der Rotationsbewegung des Nadelzylinders überlagert sind, werden durch den gleitfähigformschlüssigen Eingriff nicht dargestellter radialer Steuerfüße der Nadeln 13 mit ebenfalls der Einfachheit halber nicht dargestellten Nadel-Schloßbahnen des Schloßzylinders 12 gesteuert. Damit diese Art der Bewegungssteuerung wirksam werden kann, müssen die am Strickvorgang beteiligten Nadeln 13 aus einer in Fig. la dargestellten, weitest möglich in den Nadelzylinder 11 zurückgezogenen Rundlaufposition als tiefster Position der Nadeln in eine der Rundlaufposition gegenüber angehobene Strickposition gebracht werden, ab welcher erst die durch die rotatorische Relativbewegung des Nadelzylinders 11 gegenüber dem Schloßzylinder 12 durch den Eingriff der Steuerfüße der Nadeln mit dem Nadelband des Schloßzylinders 12 resultierenden Maschenbildungs-Bewegungen der Nadeln 13 erzielbar sind.The needles 13 are equidistant in the circumference of the needle cylinder Distributed needle channels 16 vertically up and down performed, these needle channels as to the lock cylinder 12 open, narrow grooves are formed, the are individually assigned to the needles 13. In a typical Design of the knitting machine 10 can this 2000 needles 13th and have needle channels 16 which e.g. on 40 knitting units are distributed, on each of which a thread is processed. The vertical opening and closing required for stitch formation Down movements of the needles 13, the rotational movement of the Needle cylinders are superimposed by the sliding form-fitting Intervention of radial control feet, not shown the needles 13 also for the sake of simplicity Needle lock tracks of the lock cylinder, not shown 12 controlled. So that this type of motion control is effective the needles involved in the knitting process 13 from a shown in Fig. La, as far as possible in the needle cylinder 11 withdrawn concentricity position as lowest position of the needles in one of the concentric positions brought to the raised knitting position, from which only that due to the rotary relative movement of the needle cylinder 11 compared to the lock cylinder 12 by the Engagement of the control feet of the needles with the needle band of the Lock cylinder 12 resulting meshing movements the needles 13 can be achieved.

Zur diesbezüglichen Auswahl für den Strickvorgang zu aktivierender Nadeln 13 und deren Anhebung in die in der Fig. 1b dargestellte Strick-Ausgangsposition sind den Nadeln 13 je einzeln zugeordnete Steuerplatinen 17 vorgesehen, die ihrerseits aus einer einem - gleichsam -
inaktiven Zustand der ihnen zugeordneten Nadel 13 entsprechenden, in der Fig. 1a dargestellten, Rundlaufstellung, in eine in der Fig. 1b dargestellte, gegenüber der Rundlaufstellung angenommene, Auswahlstellung bringbar sind, in der die derjenigen Steuerplatine 17 zugeordnete Nadel 13 so weit aus ihrer Rundlaufstellung ausgetrieben ist, daß sie im Verlauf der rotatorischen Relativbewegung des Nadelzylinders 11 gegenüber dem Schloßzylinder 12 zur Ausführung der maschenbildenden Auf- und Ab-Bewegungen der jeweils ausgewählten Nadel 13 auslenkbar wird, was durch den formschlüssigen Eingriff mindestens eines radialen Nadel-Stiftes mit einer diesem zugeordneten Führungsbahn des Schloßzylinders 12 ab der Strickstellung der Platine 17 möglich ist, die hiernach, unabhängig von den Strick-Auslenkungen der von ihr ausgewählten Nadel 13 in ihre Rundlaufstellung zurück geführt werden kann, während die Rückkehr der Nadel in ihre Rundlaufstellung durch die Formgebung des - nicht dargestellten - Nadelschlosses des Schloßzylinders 12 vorgegeben ist.For the relevant selection of the needles 13 to be activated for the knitting process and their raising into the knitting starting position shown in FIG. 1b, individually assigned control boards 17 are provided for the needles 13, which in turn consist of a - as it were -
Inactive state of the corresponding needle 13 corresponding to it, shown in FIG. 1a, in a concentric position, can be brought into a selection position shown in FIG. 1b, assumed in relation to the concentric position, in which the needle 13 assigned to the control board 17 so far from its concentric position is driven out that it becomes deflectable in the course of the rotary relative movement of the needle cylinder 11 relative to the lock cylinder 12 for executing the stitch-forming up and down movements of the respectively selected needle 13, which is due to the positive engagement of at least one radial needle pin with an associated one Guideway of the lock cylinder 12 from the knitting position of the board 17 is possible, which can then be returned to its concentric position regardless of the knitting deflections of the needle 13 selected by it, while the needle returns to its concentric position by the shape of the - not shown set - needle lock of the lock cylinder 12 is specified.

Die in den Fig. 1a und 1b in alternativen Funktionsstellungen innerhalb der Strickmaschine 10 und in der Fig. 2, auf deren Einzelheiten nunmehr ebenfalls verwiesen sei, für sich allein im entspannten Zustand dargestellte Steuerplatine 17 ist aus einem Federstahlstreifen ausgestanzt, der eine typische Dicke zwischen 0,4 und 0,6 mm hat, der eine geringfügig größere lichte Weite der die Nadelkanäle 16 bildenden Nuten des Nadelzylinders 11 entspricht.1a and 1b in alternative functional positions within the knitting machine 10 and in Fig. 2, on the Details are now also referred to, by themselves Control board 17 shown in the relaxed state is punched out of a spring steel strip, which is a typical Thickness between 0.4 and 0.6 mm, which is a slight greater clear width of the grooves forming the needle channels 16 of the needle cylinder 11 corresponds.

Die Platine 17, deren Gestaltung in allen wesentlichen Details der maßstäblichen Darstellung der Fig. 2 entnehmbar ist, hat einen, seinen Umrissen nach etwa trapezförmigen Grundkörper 18, von dem am nadelseitigen Ende der Steuerplatine 17 ein einseitig vorspringender, bartförmiger Fortsatz 19 ausgeht, dessen nadelseitige Querkante 21 mit der Endstirnkante 22 des Grundkörpers 18 fluchtet und mit einem von 90° nur geringfügig verschiedenen stumpfen Winkel an die eine, in den dargestellten Funktionsstellungen der Platine 17 radial innen angeordnete schräge Schenkelkante 23 des Grundkörpers 18 der Steuerplatine 17 anschließt. Die der nadelseitigen Querkante 21 des bartförmigen Fortsatzes 19 abgewandte Querkante 24 desselben schließt etwa rechtwinklig an die radial äußere schräge Schenkelkante 26 des Grundkörpers 18 an, die mit dessen radial verlaufender Endstirnkante 22 einen Winkel von ca. 10° einschließt. Dieser Winkel ist geringfügig größer als ein Kippwinkel α (Fig. 1a), um den die Steuerplatine 17 innerhalb des Nadelkanals 16 aus der in der Fig. 1a dargestellten Rundlaufstellung bis in die in der Fig. 1b dargestellte Austriebs-Position gekippt werden kann, in der die radial innere schräge Schenkelkante 23 des Grundkörpers 18 am Grund 25 des nutförmigen Nadelkanals 16 anliegt. Der Drehpunkt 27 dieser möglichen Kippbewegung der Steuerplatine 17 ist durch eine stumpfwinklige Eckkante markiert, an der die radial innere schräge Schenkelkante 23 des Grundkörpers 18 mit einem von 180° nur geringfügig verschiedenen stumpfen Winkel an die radial innere, geradlinig verlaufende Längskante 28 eines in Längsrichtung der Steuerplatine 17 nur kurzen Sockel-Abschnitts 29 derselben anschließen. Von dem Sockelabschnitt 29, der auch an der radial äußeren Seite der Platine eine geradlinige Begrenzungskante 31 hat, die mit stumpfem, von 180 nur wenig verschiedenem Winkel, eine dem Drehpunkt 27 gegenüberliegende Eckkante 32 markierend, an die radial äußere schräge Schenkelkante 26 des Grundkörpers 18 der Platine anschließt, geht ein langgestreckt-flachstabförmiger insgesamt mit 34 bezeichneter Steuerschenkel aus, dessen Basisbereich 36 im radial äußeren Teil des Sockelabschnitts 29 an diesen anschließt und relativ biegesteif ist, sowie ein federelastisch biegbarer, insgesamt mit 37 bezeichneter, Platinenschenkel, dessen Basisbereich 38 an den radial inneren Teil des Sockelabschnitts 29 der Steuerplatine 17 anschließt. The board 17, its design in all essential details the scale representation of FIG. 2 can be removed is, has a trapezoidal shape Base body 18, from the needle end of the control board 17 a one-sided projecting, beard-shaped extension 19 goes out, the needle-side transverse edge 21 with the end edge 22 of the base body 18 is aligned and with a 90 ° only slightly different obtuse angles to the one in the illustrated functional positions of the board 17 radially internally arranged oblique leg edge 23 of the base body 18 of the control board 17 connects. That of the needle side Cross edge 21 of the beard-shaped extension 19 facing away from the transverse edge 24 of the same connects approximately at right angles to the radial outer oblique leg edge 26 of the base body 18, the with its radially extending end edge 22 an angle of approx. 10 °. This angle is slightly larger as a tilt angle α (FIG. 1a) around which the control board 17th within the needle channel 16 from that shown in Fig. 1a Concentricity up to that shown in Fig. 1b Expulsion position can be tilted in the radially inner oblique leg edge 23 of the base body 18 on Base 25 of the groove-shaped needle channel 16 abuts. The fulcrum 27 of this possible tilting movement of the control board 17 is through marked an obtuse-angled corner edge on which the radially inner oblique leg edge 23 of the base body 18 with one of 180 ° only slightly different obtuse angles to the radial inner, straight longitudinal edge 28 of an in Longitudinal direction of the control board 17 only a short base section Connect 29 of them. From the base section 29, which also a straight edge on the radially outer side of the board 31 has that with blunt, of 180 little different angle, one opposite the pivot point 27 Marking corner edge 32, on the radially outer oblique leg edge 26 of the base body 18 connects the board, goes an elongated flat bar-shaped one designated 34 in total Control leg, the base region 36 in the radial outer part of the base portion 29 connects to this and is relatively rigid, and a resiliently bendable, altogether designated 37, plate legs, the base area 38 to the radially inner part of the base section 29 of the control board 17 connects.

Als Basisbereich 36 des Steuerschenkels 34 ist derjenige, im Verhältnis zur Länge LS des Steuerschenkels 34 kurze, Platinenabschnitt bezeichnet, innerhalb dessen die radial äußere geradlinige Längskante 39 kollinear an die geradlinige äußere Längskante 31 des Sockelabschnitts 29 anschließt, einerseits, und, andererseits, seine radial innere Längskante 41, die, in der Nähe des Basisbereiches 36 parallel zur äußeren Längskante 39 des Steuerschenkels 34 verlaufend, mit halbkreisförmiger Kontur an die radialäußere Längskante 43 des Federschenkels 37 anschließt, wobei die in Längsrichtung des Steuerschenkels gemessene Ausdehnung seines Basisbereiches 36 dem Krümmungsradius R1 der gekrümmten Kontur 42 entspricht. In einer typischen Gestaltung der Steuerplatine 17 hat dieser Krümmungsradius einen Wert von 1,5 mm.The base region 36 of the control leg 34 is the one, in relation to the length L S of the control leg 34, of a short circuit section within which the radially outer straight longitudinal edge 39 collinearly adjoins the straight outer longitudinal edge 31 of the base section 29, on the one hand, and, on the other hand, his radially inner longitudinal edge 41, which, in the vicinity of the base region 36 parallel to the outer longitudinal edge 39 of the control arm 34, adjoins the radially outer longitudinal edge 43 of the spring arm 37 with a semicircular contour, the extension of its base region 36 measured in the longitudinal direction of the control arm 36 being the radius of curvature R 1 corresponds to the curved contour 42. In a typical design of the control board 17, this radius of curvature has a value of 1.5 mm.

Als Basisbereich 38 des Federschenkels 37 ist derjenige, im Vergleich zu der zwischen der Basis 44 des Federschenkels 37 und dessen freiem Abstützende 46, mit dem er am Nutgrund 25 des Nadelkanals 16 abstützbar ist, gemessene Länge LF kurze Abschnitt der Steuerplatine bezeichnet, innerhalb dessen die radial innere Längskante 47 des Federschenkels 37 mit glatt gekrümmtem Verlauf ihrer radial inneren Kontur glatt an die radial innere, geradlinig verlaufende Längskante 28 des Sockelbereiches 29 anschließt, wobei der gekrümmte Konturenbereich, mit dem die radial innere Längskante 47 des Federschenkels 37 glatt an die radial innere geradlinige Längskante 28 des Sockelbereiches 29 anschließt, einen federseitigen Abschnitt 49 mit konkaver Krümmung und einen sockelabschnittsseitigen Abschnitt mit konvexer Krümmung hat, deren Krümmungsradien R2 und R3 denselben Betrag haben, der bei einer typischen Gestaltung der Steuerplatine 17 einen Wert um 2 mm hat, wobei beide Krümmungsbereiche 49 und 51 sich, vom jeweiligen Krümmungsmittelpunkt 52 bzw. 53 aus gesehen, über einen azimutalen Bereich von etwa 45° erstrecken, was bei den als Auslegungsbeispiel angegebenen Dimensionen dazu führt, daß die in Längsrichtung des Federschenkels 37 gemessene Ausdehnung seines Basisbereiches 38 etwa dem 1,5-fachen der in derselben Richtung gemessenen Längsausdehnung des Basisbereiches 36 des Steuerschenkels 34 entspricht.The base area 38 of the spring leg 37 is the length L F of the control board, within the length of the control board, compared to the length L F measured between the base 44 of the spring leg 37 and its free support end 46, with which it can be supported on the groove base 25 of the needle channel 16 the radially inner longitudinal edge 47 of the spring leg 37 with a smoothly curved course of its radially inner contour connects smoothly to the radially inner, straight longitudinal edge 28 of the base region 29, the curved contour region with which the radially inner longitudinal edge 47 of the spring leg 37 smoothly adjoins the radial inner straight longitudinal edge 28 of the base region 29 connects, has a spring-side section 49 with a concave curvature and a base section-side section with a convex curvature, the radii of curvature R 2 and R 3 of which have the same amount that has a value of around 2 mm in a typical design of the control board 17 , with both curvature marks rich 49 and 51, viewed from the respective center of curvature 52 or 53, extend over an azimuthal range of approximately 45 °, which in the dimensions given as a design example leads to the extent of its base region 38 measured in the longitudinal direction of the spring leg 37 being approximately that 1.5 times the longitudinal extension of the base region 36 of the control leg 34 measured in the same direction corresponds.

Als Längsausdehnung des Basisabschnitts 38 des Federschenkels 37, die mit dessen "Feder"-Länge LF zu vergleichen ist, wird hierbei der Abstand a der rechtwinklig zur neutralen Biegelinie 54 des Federschenkels 37 verlaufenden Basis 44 von der parallel zur Basislinie 33 des Grundkörpers 18 der Steuerplatine 17 verlaufenden Tangente 56 an den gekrümmt verlaufenden Konturenbereich 42 bezeichnet, mit dem die radial innere Längskante 41 des Steuerschenkels 34 an den Sockelabschnitt 29 der Steuerplatine 17 sowie den Basisabschnitt 38 ihres Federschenkels 37 anschließt, wobei der konkav/konvex gewölbte Konturenbereich 48 dieses Basisabschnitts 38 im Schnittpunkt der Tangente 56 mit der radial inneren Kontur 47,48,28,23 der Steuerplatine 17 glatt an die geradlinig verlaufende, radial innere Längskante 28 des Sockelabschnitts 29 der Steuerplatine 17 anschließt.As the longitudinal extension of the base section 38 of the spring leg 37, which is to be compared with its "spring" length L F , the distance a of the base 44 running at right angles to the neutral bending line 54 of the spring leg 37 from that parallel to the base line 33 of the base body 18 is Control board 17 extending tangent 56 to the curved contour area 42, with which the radially inner longitudinal edge 41 of the control leg 34 connects to the base section 29 of the control board 17 and the base section 38 of its spring leg 37, the concave / convexly curved contour area 48 of this base section 38 at the intersection of the tangent 56 with the radially inner contour 47, 48, 28, 23 of the control board 17 smoothly adjoins the straight, radially inner longitudinal edge 28 of the base section 29 of the control board 17.

Entsprechend ist als Längsausdehnung des Basisabschnitts 36 des Steuerschenkels 34, die mit dessen effektiver Länge LS zu vergleichen ist, der dem Krümmungsradius R1 entsprechende Abstand a2 der Basislinie 58 des Steuerschenkels 24 von der Tangente 56 bezeichnet. Correspondingly, as the longitudinal extension of the base section 36 of the control arm 34, which is to be compared with its effective length L S , the distance a 2 of the base line 58 of the control arm 24 from the tangent 56, which corresponds to the radius of curvature R 1 , is designated.

In dem in der Fig. 2 dargestellten, "entspannten" Zustand der Steuerplatine 17 verläuft die neutrale Biegelinie 54 ihres Federschenkels 37 im Bereich der Basis 44 desselben parallel oder annähernd parallel zu den ihrerseits parallel zueinander verlaufenden Längskanten 39 und 41 des Steuerschenkels 34, mit denen dieser an seinen Basisabschnitt 36 anschließt.In the "relaxed" state shown in FIG. 2 the control plate 17 runs the neutral bending line 54 of their spring leg 37 in the area of the base 44 of the same parallel or approximately parallel to those in turn parallel mutually extending longitudinal edges 39 and 41 of the control leg 34, with which this on its base portion 36 connects.

Die zwischen der Federbasis 44 und dem freien Abstützende 46 des Federschenkels 37, das im Bereich der Abstützstelle eine konvexe Wölbung hat, gemessene effektive Länge LF des Federschenkels 37 ist geringfügig größer als die halbe effektive Länge LS des Steuerschenkels 34 gemessen zwischen dessen Basislinie 58 und seiner freien Kante 59.The effective length L F of the spring leg 37 measured between the spring base 44 and the free support end 46 of the spring leg 37, which has a convex curvature in the region of the support point, is slightly greater than half the effective length L S of the control leg 34 measured between its base line 58 and its free edge 59.

In dem in der Fig. 2 dargestellten, entspannten Zustand des Federschenkels 37 hat dieser eine vom Steuerschenkel 34 weg weisende, schwache Krümmung, deren mittlerer, dem Verlauf der neutralen Biegelinie 54 entsprechender Krümmungsradius einen Wert hat, der etwa dem 4,5-fachen der Federlänge LF entspricht.In the relaxed state of the spring leg 37 shown in FIG. 2, the spring leg 37 has a weak curvature pointing away from the control leg 34, the average radius of curvature of which corresponds to the course of the neutral bending line 54 and has a value which is approximately 4.5 times that Spring length L F corresponds.

Zwischen der Basis 44 und dem freien Abstützende 46 des Federschenkels 37 nimmt dessen rechtwinklig zur neutralen Biegelinie 54 gemessene Breite h kontinuierlich ab, wobei die Schenkelbreite hb an der Basis 44 des Federschenkels 37 etwa dem 1,8-fachen Wert der Federschenkelbreite ha am freien Abstützende 46 des Federschenkels 37 entspricht. Ein typischer Wert der Basisbreite hb des Federschenkels 37, bei einer Länge desselben von ca. 32 mm und einer Dicke des Platinenmaterials von 0,5 mm, ist 0,9 mm, was am freien Abstützende 46 des Federschenkels 37 einem quadratischen Querschnitt desselben entspricht.Between the base 44 and the free support end 46 of the spring leg 37, the width h measured perpendicular to the neutral bending line 54 continuously decreases, the leg width h b at the base 44 of the spring leg 37 being approximately 1.8 times the value of the spring leg width h a am free support end 46 of the spring leg 37 corresponds. A typical value of the base width h b of the spring leg 37, with a length of the same about 32 mm and a thickness of the board material of 0.5 mm, is 0.9 mm, which corresponds to a square cross section of the same at the free support end 46 of the spring leg 37 .

Der Steuerschenkel 34 hat an seiner radial äußeren Seite einen zum Schloßzylinder 12 hin weisenden, fahnenförmigen Vorsprung 61, durch den der vom Basisbereich 36 des Steuerschenkels ausgehende, geradlinig begrenzte Anfangsabschnitt 62 des Steuerschenkels 34 gegen einen über das Ende des Federschenkels 37 hinausragenden Stützabschnitt 63 abgesetzt ist, dessen radial äußere, d.h. zum Schloßzylinder 12 hin weisende Längskante 64 von dem fahnenförmigen Vorsprung 61 bis zur freien Endkante 59 des Steuerschenkels 34 hin geradlinig verläuft, mit der radial äußeren Längskante 39 des Anfangsabschnitts 62 einen kleinen spitzen Winkel von etwa 2' einschließt und im Bereich ihres Anschlusses an den fahnenförmigen Vorsprung 61 gegenüber dieser Längskante 39 des Anfangsabschnitts 62 des Steuerschenkels 34 um etwa die Breite b des Anfangsabschnitts 62 radial nach außen versetzt ist. Die freie Längskante 66 des fahnenförmigen Vorsprungs 61 verläuft geradlinig und schließt mit der radial äußeren Längskante 64 des Stützabschnitts 63 des Steuerschenkels 34 einen spitzen Winkel von etwa 1° ein. Zwischen einem auf den fahnenförmigen Vorsprung 61 folgenden Anfangsbereich 67 des Stützabschnittes 63 und einem sich über etwa 1/3 der Länge des Stützabschnittes 63 erstreckenden, der Grundform nach schlank trapezförmigen, einen "radialen" Stützfuß bildenden Endabschnitt des Steuerschenkels 34 vermittelt ein sich über etwa 2/5 der Länge des Stützabschnitts 63 erstreckender Mittelbereich desselben, dessen Breite b' etwas geringer ist als die Breite des Anfangsabschnitts 62 des Stützschenkels 34 und etwa 80% derselben beträgt. The control leg 34 has one on its radially outer side to the lock cylinder 12 pointing, flag-shaped projection 61, through which the base region 36 of the control leg outgoing, straightforward beginning section 62 of the control leg 34 against one over the end of the spring leg 37 protruding support section 63 set whose radially outer, i.e. to the lock cylinder 12 longitudinal edge 64 pointing from the tab-shaped projection 61 straight to the free end edge 59 of the control leg 34 extends, with the radially outer longitudinal edge 39 of the initial section 62 a small acute angle of about 2 ' includes and in the area of their connection to the flag-shaped Projection 61 with respect to this longitudinal edge 39 of the initial section 62 of the control leg 34 by about the width b of the start section 62 is offset radially outward is. The free longitudinal edge 66 of the flag-shaped projection 61 runs in a straight line and closes with the radially outer one Longitudinal edge 64 of the support section 63 of the control leg 34 an acute angle of about 1 °. Between one on the flag-shaped projection 61 following the initial area 67 of the Support section 63 and one over about 1/3 of the length of the support portion 63 extending, the basic shape slim trapezoidal, forming a "radial" support leg End portion of the control leg 34 communicates itself Middle region extending about 2/5 of the length of the support portion 63 the same, whose width b 'is somewhat smaller than the width of the start portion 62 of the support leg 34 and about 80% of the same.

Die radial innere Längskante 69 des radialen Stützfußes 68, mit der dieser, gesehen in der Rundlaufstellung der Steuerplatine 17 (Fig. 1a), an einer schematisch dargestellten Steuermagnetanordnung 70 radial abgestützt ist, verläuft geradlinig und schließt mit der geradlinigen, radial äußeren Längskante 64 des Stützabschnitts 63 einen spitzen Winkel von ca. 8° ein, wobei die größte Breite b'' des Stützfußes 68 etwa dem 1,6-fachen der Breite b' des mittleren Bereiches des Stützabschnitts 63 entspricht. Zwischen der radial äußeren Längskante 64 des Stützabschnitts 63 und der radial äußeren Längskante 66 des fahnenförmigen Vorsprungs 61 des Steuerschenkels 34 erstreckt sich eine geradlinige Stützkante 71, die mit der radial äußeren Längskante 64 des Stützabschnitts 63 des Steuerschenkels 34 einen spitzen Winkel anschließt, der beim dargestellten, speziellen Ausführungsbeispiel einen Wert von ca. 68° hat. Diesem "Stütz"-Winkel entspricht der jeweils in einer radialen Ebene gemessene Neigungswinkel γ einer umlaufenden Gleit-Führungsfläche 72 eines Austriebs-Schloßteils 73, an der die Steuerplatine 17 mit der schräg verlaufenden Stützkante 71 ihres fahnenförmigen Vorsprungs 61, der den Austriebsfuß der Steuerplatine 17 bildet, abstützbar ist.The radially inner longitudinal edge 69 of the radial support foot 68, with this, seen in the concentric position of the control board 17 (Fig. 1a) on a schematically shown Control magnet assembly 70 is supported radially, is straight and closes with the straight, radially outer Longitudinal edge 64 of the support section 63 an acute angle of approx. 8 °, the greatest width b '' of the support leg 68 approximately 1.6 times the width b 'of the central region of the support section 63 corresponds. Between the radially outer Longitudinal edge 64 of the support section 63 and the radially outer Longitudinal edge 66 of the flag-shaped projection 61 of the Control leg 34 extends a rectilinear support edge 71 with the radially outer longitudinal edge 64 of the support section 63 of the control leg 34 an acute angle connects that in the illustrated, special embodiment has a value of approx. 68 °. This "support" angle corresponds to that measured in each case in a radial plane Inclination angle γ of a circumferential sliding guide surface 72 an output lock part 73, on which the control board 17th with the sloping support edge 71 of their flag-shaped Projection 61, which is the output foot of the control board 17th forms, is supported.

In der in der Fig.1a dargestellten Rundlaufstellung der Steuerplatine 17 nimmt diese im Nadelkanal 16 ihre tiefstgelegene Position ein, in der der Austriebsfuß 61 in den Nadelkanal 16 hineingedrängt ist und mit seiner geradlinig verlaufenden Längskante 66 an einem zylindermantelförmigen, radial inneren Umfangsbereich des Austriebs-Schloßteils 73 gleitfähig radial abgestützt ist, das, während die mit dem Nadelzylinder 11 rotierende Steuerplatine 17 an diesem zylindermantelförmigen Umfangsbereich 74 vorbeitritt, den Endabschnitt 68 des Steuerschenkels 34 mit seiner radial inneren Längskante 69 in Anlage mit einem Permanentmagneten 76 des jeweiligen Stricksystems der Rundstrickmaschine drängt, an dem der Stützfuß 68 der Steuerplatine 17 gleitfähig abgestützt ist.In the concentric position shown in Fig.1a Control board 17 takes this its lowest in the needle channel 16 Position in which the output foot 61 in the needle channel 16 is pushed in and with its straightforward extending longitudinal edge 66 on a cylinder jacket-shaped, radially inner peripheral region of the drive-out lock part 73 is slidably supported radially, while that with the Needle cylinder 11 rotating control board 17 on this cylinder jacket-shaped Circumferential area 74 passes, the end portion 68 of the control leg 34 with its radially inner Longitudinal edge 69 in contact with a permanent magnet 76 of the respective knitting system of the circular knitting machine on which the support foot 68 of the control board 17 is slidably supported is.

Dieser Permanentmagnet 76 übt auf den Stützfuß 68 des Steuerschenkels 34 eine Anziehunskraft aus, die ausreichend ist, um den Steuerschenkel gegen die - abstoßende - Kraft der in der Grundlaufstellung maximal vorgespannten, durch den Federschenkel 37 gebildeten Steuerfeder der Steuerplatine 17 in Anlage mit ihm zu halten. Die Steuermagnet-Anordnung 70 des jeweiligen Stricksystems umfaßt weiter eine - lediglich schematisch angedeutete - mittels eines Steuerstromes erregbare Magnet-Spule 77, durch deren Erregung ein die anziehende Kraft des Permanentmagneten 76 aufhebendes, magnetisches Gegenfeld erzeugbar ist, so daß, wenn die Magnet-Spule 77 erregt ist, der Steuerschenkel 34 der Steuerplatine 17 durch die Wirkung seiner Steuerfeder 37 in die in der Fig. 1b dargestellte Auswahlstellung gelangen kann, in der sein Austriebsfuß 61, aus dem Nadelkanal 16 herausragend, mit seiner abfallenden Stützkante 71 an der gleichfalls abfallenden Gleitführungsfläche 72 des Austriebsteils 73 - vertikal - abgestützt ist und gleichzeitig auch die radial äußere geradlinige Längskante 64 des Stützabschnittes 63 des Steuerschenkels 34 an einer mit der zentralen Längsachse 14 der Strickmaschine 10 koaxialen Mantelfläche 78 des Austriebs-Schloßteils 73 gleitend radial abgestützt ist.This permanent magnet 76 exerts on the support leg 68 of the control leg 34 an attractive force that is sufficient around the tax leg against the - repulsive - force of the the basic running position is maximally pre-tensioned by the spring leg 37 formed control spring of the control board 17th to keep in touch with him. The control magnet assembly 70 of the respective knitting system further comprises - only schematically indicated - excitable by means of a control current Magnetic coil 77, through the excitation of which the attractive Magnetic force to cancel the permanent magnet 76 Opposing field can be generated so that when the magnet coil 77 is excited, the control leg 34 of the control board 17 by the effect of its control spring 37 in that shown in Fig. 1b Can reach the selection position in which his expulsion foot 61, protruding from the needle channel 16, with its sloping support edge 71 on the sloping edge Sliding guide surface 72 of the expulsion part 73 - vertical - is supported and at the same time the radially outer rectilinear Longitudinal edge 64 of the support section 63 of the control leg 34 on one with the central longitudinal axis 14 of the Knitting machine 10 coaxial outer surface 78 of the drive lock part 73 is supported radially.

Das Austriebsschloßteil 73 hat, in azimutaler Richtung gesehen, eine um mindestens den Betrag des Hubes, um den die Steuerplatine 17 im Nadelkanal 16 auf- und ab- verschiebbar ist, periodisch variierende Höhe, wobei aufsteigende und abfallende sowie horizontal verlaufende Abschnitte der schneidenförmigen Führungskante 79 des Austriebs-Schloßteils 73 glatt - "wellenförmig" - aneinander anschließen.The drive lock part 73, seen in the azimuthal direction, one by at least the amount of the stroke by which the Control board 17 in the needle channel 16 can be moved up and down is, periodically varying height, with ascending and descending as well as horizontally running sections of the blade-shaped Leading edge 79 of the drive lock part 73 smooth - "wavy" - connect to each other.

Entsprechendes gilt sinngemäß für den Verlauf der Gleitfläche einer Rückstell-Führungsbahn des Schloßzylinders 12, an der die - obere - Endstirnkante 21 des als Rückstellfuß wirkenden bartförmigen Fortsatzes 19 der Steuerplatine 17 gleitend abstützbar ist.The same applies analogously to the course of the sliding surface a return guide of the lock cylinder 12 the - upper - end edge 21 of the acting as a return foot beard-shaped extension 19 of the control board 17 sliding is supported.

Eine Auswahl-Ansteuerung der Steuerplatine 17 zu deren Anhebung aus der in der Fig. la dargestellten Rundlaufstellung ist jeweils dann möglich, wenn die Steuerplatine an einem Bereich geringerer Höhe des Austriebsschloßteils 73 vorbeitritt, bei der die Führungskante 79 des Austriebs-Schloßteils 73, wie gestrichelt eingezeichnet, unterhalb der Eckkante 82 des Platinen-Austriebsfußes 61 verläuft, an der dessen schräge Stützkante 71 an seine freie Längskante 66 anschließt. Wird in einer solchen Position der Steuerplatine 17 die anziehende Wirkung des Permanentmagneten 76 durch kompensatorische Ansteuerung der Magnetspule 77 aufgehoben, so wird die Steuerplatine 17 durch die Wirkung der Vorspannung des Federschenkels 37 um den Drehpunkt 27 gekippt, wodurch der Austriebsfuß 61 der Platine radial nach außen in eine die Führungskante 79 und den anschließenden Bereich der Gleitführungsfläche 72 des Austriebsschloßteils 73 überquerende Position gelangt, in der nunmehr die Steuerplatine, mit ihrem Austriebsfuß 61 auf der Führungskante 79 des Austriebsschloßteils 73 gleichsam reitend, durch ihre Relativbewegung gegenüber einem ansteigenden Abschnitt der Führungskante 79 des Austriebs-Schloßteils 73 bis in die in der Fig. lb dargestellte Auswahlstellung angehoben wird. In dieser Position der Steuerplatine in der ihr Grundkörper 18, verglichen mit der Rundlaufstellung um den Winkel α gekippt ist und mit seiner schrägen Schenkelkante am Nutgrund 25 des Nadelkanals 16 abgestützt ist, verläuft die neutrale Biegelinie 54 des Federschenkels 37 etwa parallel zu den Längskanten 39 und 41 des Anfangsabschnitts 62 des Steuerschenkels 34 der Steuerplatine 17, wogegen in der Rundlaufstellung der Anfangsabschnitt 62 des Steuerschenkels 34 und der Federschenkel 37 der Platine einen spitzen Winkel miteinander einschließen.A selection control of the control board 17 to raise it from the concentric position shown in FIG is always possible if the control board on a Area of lower height of the drive lock part 73 passes by, at which the leading edge 79 of the drive lock part 73, as shown in dashed lines, below the corner edge 82 of the board output foot 61 runs on the whose oblique support edge 71 to its free longitudinal edge 66 connects. Will be in such a position the control board 17 through the attractive effect of the permanent magnet 76 compensatory control of solenoid 77 canceled, so the control board 17 by the action of the bias of the spring leg 37 tilted about the pivot point 27, whereby the output foot 61 of the board radially outwards in a the leading edge 79 and the adjacent area of the Sliding guide surface 72 of the drive lock part 73 crossing Position, in which the control board, with its expulsion foot 61 on the leading edge 79 of the expulsion lock part 73 riding, as it were, through their relative movement opposite a rising section of the leading edge 79 of the drive lock part 73 up to the in the Fig. lb shown selection position is raised. In this Position of the control board in the main body 18, compared with the concentric position tilted by the angle α is and with its oblique leg edge on the groove base 25 of Needle channel 16 is supported, the neutral bending line 54 of the spring leg 37 approximately parallel to the longitudinal edges 39 and 41 of the start portion 62 of the control leg 34 of the control board 17, whereas in the concentric position the initial portion 62 of the control leg 34 and the Spring legs 37 of the board form an acute angle with one another lock in.

Die in der Fig. 3 als weiteres Ausführungsbeispiel dargestellte Steuerplatine 17' ist mit der Steuerplatine 17 gemäß Fig. 2 funktionsanalog und unterscheidet sich von dieser lediglich durch die Gestaltung der Übergangsbereiche, über die der Steuerschenkel 34' und der Federschenkel 37' an den Grundkörper 18' der Steuerplatine 17' anschließen, deren Gestaltung im übrigen dieselbe ist wie anhand der Steuerplatine 17 gemäß Fig. 2 beschrieben. Soweit in der Fig. 3 dieselben Bezugszeichen verwendet sind wie in der Fig. 2, ohne daß die hiermit bezeichneten Elemente der Steuerplatine 17' bei den Erläuterungen eigens erwähnt werden, soll dies den Verweis auf ihre anhand der Fig. 2 gegebene Beschreibung beinhalten.The shown in Fig. 3 as a further embodiment Control board 17 'is in accordance with the control board 17 Fig. 2 is functionally analogous and only differs from this by designing the transition areas over which the control leg 34 'and the spring leg 37' to the Connect the main body 18 'of the control board 17', its design otherwise the same as with the control board 17 described in FIG. 2. So far the same in FIG. 3 Reference numerals are used as in Fig. 2, without the elements of the control board 17 'designated hereby the explanations are specifically mentioned, this is the reference on their description given with reference to FIG. 2.

Für die Steuerplatine 17' ist, zur Zweck der Erläuterung, vorrausgesetzt, daß sie anstelle der Steuerplatine 17 gemäß Fig. 2 mit derselben Funktion in der Strickmaschine 10 einsetzbar ist und demgemäß die Orientierung und Länge der schrägen Schenkelkanten 23 und 26 ihres trapezförmigen Grundkörpers 18', dessen zwischen der Kippkante 27 und der dieser gegenüberliegenden stumpfwinkligen Eckkante 32 gemessene Basisbreite a, die Gestaltungen ihres Rückstellfußes 19, ihres Austriebsfußes 61, deren in Verschieberichtung der Steuerplatine 17' gemessene Abstände voneinander und die Anordnung des Abstützendes 46 des Federschenkels 37' bezüglich des Austriebsfußes 61 der Steuerplatine 17' dieselben sind wie bei der Steuerplatine 17 gemäß Fig. 2. Unterschiedlich gegenüber dieser sind bei der Platine 17' gemäß Fig. 3 die folgenden Einzelheiten:For the control board 17 ', for the purpose of explanation, assuming that instead of the control board 17 according to 2 can be used in knitting machine 10 with the same function and accordingly the orientation and length of the sloping leg edges 23 and 26 of their trapezoidal Base body 18 ', the between the tilting edge 27 and the this opposite obtuse-angled corner edge 32 measured Basic width a, the designs of your return foot 19, their Austriebsfußes 61, whose in the direction of displacement Control board 17 'measured distances from each other and the arrangement the support end 46 of the spring leg 37 'with respect of the output foot 61 of the control board 17 'are the same as with the control board 17 according to FIG. 2. Different compared to this are in the board 17 'of FIG. 3 following details:

Der Abstand der Basis 33' des Federschenkels 37', bis zu der hin die radial äußere Längskante 43 und die radial innnere Längskante 47 des Federschenkels, gesehen in dessen dargestelltem, entspannten Zustand, zwischen dem freien Abstützende 46 und der Federbasis 33'mit konstantem Krümmungsradius verlaufen, von der Endstirnkante 22 des trapezförmigen Grundkörpers 18' der Steuerplatine 17' ist kleiner als die von dieser Endstirnkante 22 aus gemessenen Abstände der stumpfwinkligen Ecken 27 und 32 des Platinen-Grundkörpers 18'. Die Basis 33' des Federschenkels 37' ist gleichsam in den Grundkörper 18' "hinein"-verlegt, so daß sich, verglichen mit dem Ausführungsbeispiel gemäß der Fig. 2 eine größere Länge LF des Federschenkels 37' ergibt, die ca. 15% größer ist als die Länge L ' / F des Federschenkels 37 der Steuerplatine 17 gemäß Fig. 2. Der dem Verlauf der neutralen Biegelinie 54' des Federschenkels 37' entsprechende, zwischen den Krümmungsradien der radial äußeren Längskante 43 und der radial inneren Längskante 47 des Federschenkels 37' gemittelte Krümmungsradius entspricht etwa dem 6-fachen der Federschenkellänge L ' / F).The distance between the base 33 'of the spring leg 37', up to which the radially outer longitudinal edge 43 and the radially inner longitudinal edge 47 of the spring leg, as seen in its illustrated, relaxed state, between the free support end 46 and the spring base 33 'with a constant radius of curvature extend from the end face edge 22 of the trapezoidal base body 18 'of the control board 17' is smaller than the distances of the obtuse-angled corners 27 and 32 of the board base body 18 'measured from this end face edge 22. The base 33 'of the spring leg 37' is, as it were, 'laid' into the base body 18 ', so that, compared with the exemplary embodiment according to FIG. 2, there is a greater length L F of the spring leg 37', which is approximately 15% is greater than the length L '/ F of the spring leg 37 of the control board 17 according to FIG. 2. The one corresponding to the course of the neutral bending line 54' of the spring leg 37 ', between the radii of curvature of the radially outer longitudinal edge 43 and the radially inner longitudinal edge 47 of the spring leg 37 'averaged radius of curvature corresponds approximately to 6 times the length of the spring leg L' / F).

Die Basisbreite h ' / b des Federschenkels 37' ist nur um etwa 20% größer als seine Breite ha am freien Abstützende 46.The base width h '/ b of the spring leg 37' is only about 20% larger than its width h a at the free support end 46.

Die am Nutgrund 25 des die Steuerplatine 17' aufnehmenden Nadelkanals 16 abstützbare, den Drehpunkt, um den die Platine 17' kippbar ist, markierende, stumpfwinklige Kante 27 ist an einer, von der Federbasis 33' aus gemessen, sich über etwa 1/10 der Federschenkellänge L ' / F erstreckenden Stütznase 83 angeordnet, deren dem Federschenkel 37' zugewandte, radial äußere Längskante 84 im Basisbereich 33' parallel zu der neutralen Biegelinie 54' des Federschenkels 37' verläuft.The on the groove bottom 25 of the control board 17 'receiving Needle channel 16 supportable, the fulcrum around which the board 17 'is tiltable, marking, obtuse-angled edge 27 on a, measured from the spring base 33 ', over about 1/10 of the spring leg length L '/ F extending support lug 83 arranged, the spring leg 37 'facing radially outer longitudinal edge 84 in the base region 33 'parallel to the neutral bending line 54 'of the spring leg 37'.

Zwischen der radial inneren Längskante 41 des Anfangsabschnitts 62 des Steuerschenkels 34' der Steuerplatine 17' und der radial äußeren Längskante 43 ihres Steuerschenkels 37', einerseits, sowie zwischen der radial inneren Längskante 47 des Federschenkels 37' und der radial äußeren Längskante 84 der Stütznase 83 der Steuerplatine 17', andererseits, vermitteln mit jeweils glattem Anschluß 180°-kreisbogenförmig gekrümmte Konturenbereiche 86 und 87 gleicher Krümmungsradien, die bei dem zur Erläuterung gewählten Ausführungsbeispiel einen Betrag von 0,75 mm haben. Diese relativ kleinen Krümmungsradien sind bei den angegebenen Abmessungen der Steuerplatine 17', deren Dimensionen im übrigen denjenigen der Steuerplatine 17 gemäß Fig. 2 entsprechen, ausreichend, um Kerb-Wirkungen im Basisbereich 33' der Steuerplatine 17' zuverlässig auszuschließen.Between the radially inner longitudinal edge 41 of the initial section 62 of the control leg 34 'of the control board 17' and the radially outer longitudinal edge 43 of her control leg 37 ', on the one hand, and between the radially inner longitudinal edge 47 of the spring leg 37 'and the radially outer longitudinal edge 84 of the support lug 83 of the control board 17 ', on the other hand, mediate with smooth connection in each case 180 ° circular arc curved contour areas 86 and 87 the same Radii of curvature in the exemplary embodiment chosen for explanation have an amount of 0.75 mm. This relative small radii of curvature are given the dimensions given the control board 17 ', the dimensions of which otherwise correspond to those of the control board 17 according to FIG. 2, sufficient to notch effects in the base region 33 'of the control board 17 'reliably excluded.

Claims (5)

  1. Control sinker (17;17') which, in a knitting machine (10) comprising a high number (e.g. 2000) of knitting tools (13), is in each case associated with one of the knitting tools as control element, which has an elongate-flat rod-shaped basic shape, with a basic body (18;18'), which can be supported at the associated knitting tool and from whose side which is remote from one end face edge (22) there extends an elongate control shank (34;34') comprising a lug-shaped clearing butt (61) and provided to control displacements and tilting movements of the control sinker, and with a control spring (37;37') which extends parallel or almost parallel to the control shank and is in the shape of an elongate rod in terms of basic shape, wherein the sinker (17;17'), including its control shank and its control spring, is formed as a one-piece spring steel part, in which the base width (hb) of the control spring (37;37') with which this spring adjoins the basic sinker body (18; 18') is of a greater value than at the free end (46), and the spring adjoins the basic sinker body (18; 18') at its base side with a smooth curvature which widens the base region, characterised in that the width (ha) of the control spring (37;37') at its free end (46) is between 80% and 120% and at the base between 150% and 250% of the material thickness of the sinker (17;17') and varies continuously in between, and that the radius of curvature with which the control spring (37) smoothly adjoins the basic body (18) and the control shank (34) of the sinker (17) is between 1.5 times and twice the value of the base width of the control spring.
  2. Control sinker (17;17') which, in a knitting machine (10) comprising a high number (e.g. 2000) of knitting tools (13), is in each case associated with one of the knitting tools as control element, which has an elongate-flat rod-shaped basic shape, with a basic body (18;18'), which can be supported at the associated knitting tool and from whose side which is remote from one end face edge (22) there extends an elongate control shank (34;34') comprising a lug-shaped clearing butt (61) and provided to control displacements and tilting movements of the control sinker, and with a control spring (37;37') which extends parallel or almost parallel to the control shank and is in the shape of an elongate rod in terms of basic shape, wherein the sinker (17;17'), including its control shank and its control spring, is formed as a one-piece spring steel part, in which the base width (hb) of the control spring (37;37') with which this spring adjoins the basic sinker body (18; 18') is of a greater value than at the free end (46), and the spring adjoins the basic sinker body (18; 18') at its base side with a smooth curvature which widens the base region, characterised in that the spring base (33'), which forms the beginning of the smooth curvature (86) with which the control spring (37') adjoins the basic sinker body (18') and the control shank (34'), projecting beyond the support end of the spring (37') in the longitudinal direction, of the sinker, likewise adjoins with a smooth curvature (87) a support nib (83) extending from the basic sinker body (18'), disposed on the side of the control spring (37') lying opposite the control shank (34'), pointing towards the free spring end and provided on its side which is remote from the control spring with an obtuse-angled support edge which defines the tilting axis (27) of the sinker, and that the radii of curvature with which the base (33') of the control spring (37') smoothly adjoins the adjacent control shank (34') and the support nib of the sinker are of magnitudes between the value of the base width of the control spring (37') and 1.5 times the value thereof, preferably approximately 1.1 times the value thereof.
  3. Control sinker according to Claim 2, characterised in that the length lb of the portion of the control spring (37') near the base and extending between the support nib and the control shank (34') of the sinker (17') is between 7% and 15% of the spring length L'F preferably around 10% of the latter.
  4. Control sinker according to Claim 2 or Claim 3, characterised in that the base (33') of the control spring (37') smoothly adjoins, in each case with the same radius of curvature, the contour edges (41 and 84) of the control shank (34') and the support nib (83) which are adjacent to it and extend parallel or almost parallel to its longitudinal edges (43, 47).
  5. Use of the control sinker according to any one of Claims 1 to 4 in a knitting machine as a control element for selecting and controlling loop-forming movements of knitting tools, with each of which a control element of this kind is associated, which can be displaced in alternate directions in a guide groove of a sinker carrier in the longitudinal direction thereof, wherein the sinker carrier comprises a high number (e.g. 2000) of such guide grooves, which extend parallel to one another, are disposed equidistantly side by side and each of which accommodates a control sinker, the drive of which is effected by relative movements of the sinker carrier and a cam carrier, at which a clearing cam part with a clearing edge is provided, the movement of which past contour edges, which extend transversely to the sinker guide direction, of lug-shaped clearing butts controls the displacements of the control sinkers, which can be pushed into the position of engagement, which provides the displacement drive, of their clearing butt with the clearing edge of the clearing cam part of the cam carrier through the effect of a minimum initial stress of their control spring, which extends from the basic body of the sinker and the free end of which is supported in sliding fashion at the bottom of the guide groove of the control sinker, wherein the control sinkers may be pushed by control elements of the cam carrier acting in non-positive-positive fashion into a normal position in which their clearing butts are no longer engaged for drive purposes with the clearing edge of the clearing cam, can be fixed in this normal position by the holding power of a permanent magnet arrangement and released to be transferred into the clearing position by the compensatory activation of an electronically controllable magnet arrangement.
EP96933436A 1995-11-07 1996-10-01 Plate for selecting and controlling knitting movements of knitting tools in a knitting machine Expired - Lifetime EP0859881B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19541407 1995-11-07
DE19541407A DE19541407A1 (en) 1995-11-07 1995-11-07 Circuit board for the selection and control of stitch-forming movements of knitting tools of a knitting machine
PCT/EP1996/004284 WO1997017486A1 (en) 1995-11-07 1996-10-01 Plate for selecting and controlling knitting movements of knitting tools in a knitting machine

Publications (2)

Publication Number Publication Date
EP0859881A1 EP0859881A1 (en) 1998-08-26
EP0859881B1 true EP0859881B1 (en) 2000-09-13

Family

ID=7776801

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96933436A Expired - Lifetime EP0859881B1 (en) 1995-11-07 1996-10-01 Plate for selecting and controlling knitting movements of knitting tools in a knitting machine

Country Status (12)

Country Link
US (1) US6082142A (en)
EP (1) EP0859881B1 (en)
JP (1) JPH11501998A (en)
CN (1) CN1139685C (en)
AT (1) ATE196327T1 (en)
CA (1) CA2236966C (en)
CZ (1) CZ287829B6 (en)
DE (2) DE19541407A1 (en)
ES (1) ES2151676T3 (en)
PT (1) PT859881E (en)
TW (1) TW470797B (en)
WO (1) WO1997017486A1 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CZ298570B6 (en) * 2001-03-20 2007-11-07 Uniplet Trebíc, A. S. Needle selector device

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DE19720169C2 (en) * 1997-05-14 1999-04-08 Groz Beckert Kg Selection board
DE10015730B4 (en) * 2000-03-29 2012-09-13 Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh Board for a particular working according to the relative technique knitting machine and equipped with such a board knitting machine
DE10148196C1 (en) * 2001-09-28 2003-04-03 Groz Beckert Kg system part
EP2374921A1 (en) * 2010-04-07 2011-10-12 Pai Lung Machinery Mill Co., Ltd. Circular knitting machine Jacquard needle equipped with a return structure
DE102010017952B4 (en) * 2010-04-22 2012-04-19 H. Stoll Gmbh & Co. Kg Knitting needle for knitting machines
DE102017106961B3 (en) * 2017-03-31 2018-05-30 Terrot Gmbh Knitting machine, knitting process and knitted fabric

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WO1994003668A1 (en) * 1992-08-03 1994-02-17 Universal Maschinenfabrik Dr. Rudolf Schieber Gmbh & Co. Kg Textile machine

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DE1785125B1 (en) * 1968-08-13 1971-10-14 Harry Apprich Device for producing a knitted fabric
IT1137166B (en) * 1981-05-28 1986-09-03 Mecmor Spa CIRCULAR MACHINE FOR CYLINDER AND FLAT KNITWEAR WITH DISH SELECTION DEVICE
DE3712673C1 (en) * 1987-04-14 1988-08-25 Sipra Patent Beteiligung Multi-system circular knitting machine with electromagnetic needle selection
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WO1994003668A1 (en) * 1992-08-03 1994-02-17 Universal Maschinenfabrik Dr. Rudolf Schieber Gmbh & Co. Kg Textile machine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ298570B6 (en) * 2001-03-20 2007-11-07 Uniplet Trebíc, A. S. Needle selector device

Also Published As

Publication number Publication date
US6082142A (en) 2000-07-04
ES2151676T3 (en) 2001-01-01
EP0859881A1 (en) 1998-08-26
CZ111798A3 (en) 1998-07-15
TW470797B (en) 2002-01-01
PT859881E (en) 2001-03-30
WO1997017486A1 (en) 1997-05-15
DE19541407A1 (en) 1997-05-15
ATE196327T1 (en) 2000-09-15
JPH11501998A (en) 1999-02-16
CN1201497A (en) 1998-12-09
CA2236966C (en) 2005-04-26
DE59605892D1 (en) 2000-10-19
CN1139685C (en) 2004-02-25
CA2236966A1 (en) 1997-05-15
CZ287829B6 (en) 2001-02-14

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