Take-ups Patents (Class 66/149R)
  • Patent number: 6155082
    Abstract: In a flatbed knitting machine comprising at least two needle beds, at least one knitting system, at least one fabric take-off device and a take-off comb, the comb hooks (2) are covered by a take-off comb covering device (6) during at least one part of the rising motion of the take-off comb (1) so as to prevent previously knitted items from becoming caught up in the take-off comb.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: December 5, 2000
    Assignee: Shima Seiki Manufacturing Limited
    Inventors: Reinhold Schimko, Armin Bich
  • Patent number: 6029478
    Abstract: A device for tensioning knitted fabrics in knitting machines, particularly in large-diameter circular machines device comprises a plurality of tensioning rollers which are arranged side by side so as to contact substantially all the transverse extension of the fabric, said rollers being arranged below the needle work area of the machine. Each tensioning roller cooperates with a contrast roller which acts on the face of the fabric that is opposite to the face that makes contact with the tensioning rollers and is orientated so that its axis is parallel to the axis of the corresponding tensioning roller. There are actuators for actuating the tensioning rollers so that they rotate about their respective axes in order to apply traction to the fabric being formed. The actuators comprise, for each tensioning roller, a motor which can be actuated independently or in correlation with the actuation of the motors that actuate the other tensioning rollers.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: February 29, 2000
    Assignee: MEC-MOR S.r.l.
    Inventor: Vincenzo Panuccio
  • Patent number: 6023949
    Abstract: A circular machine for knitting or hosiery with a device for tensioning the knitted fabric, the tensioning device comprising at least two tensioning rollers which are arranged below the needle work area and are arranged substantially horizontally. The tensioning rollers face each other and actuation elements are provided which act on at least one of the tensioning rollers to turn it about the corresponding axis in order to tension the knitted fabric which is formed by the needles and passes between the tensioning rollers. The tensioning device comprises first detection elements for detecting the degree of tension of the fabric in a region of the portion of fabric that lies between the needle work area and the tensioning rollers. The first detection device is operatively connected to the first actuation element in order to vary or maintain the rotation rate of the tensioning rollers as a function of the detected tension degree tension and of a preset tension degree.
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: February 15, 2000
    Assignee: Santoni S.p.A.
    Inventors: Francesco Lonati, Ettore Lonati, Fausto Lonati, Tiberio Lonati
  • Patent number: 5996377
    Abstract: A device for the drawing of a knitted article in a circular stocking knitting machine. The device includes a tubular element (14), which extends coaxially and rotates with the cylinder of the machine, but is capable of axial movements between a raised position and a lowered position, and a locking element (15), which is arranged and can be moved independently towards and away from one end of the tubular element and can be moved together with the said tubular element. The locking element (15) engages with the end of the tubular element (14) in order to lock the manufactured article, to draw the latter while it is manufactured and to release it for the purpose of discharging it.
    Type: Grant
    Filed: June 4, 1998
    Date of Patent: December 7, 1999
    Inventor: Giuseppe Cavalli
  • Patent number: 5960646
    Abstract: A fabric take-off roller arrangement for flat bed knitting machines is provided with two driven and parallel arranged fabric take-off rollers, between which a fabric web is tangentially guided, wherein at least one of the fabric take-off rollers is made up of roller elements, which are arranged next to each other in the axial direction and are coupled, fixed against relative rotation. The rollers are rotatably maintained on one bearing support, which is pivotable in a direction vertically to the orientation of the roller elements, and which are hingedly seated in relation to each other as well as to the bearing support and are pressed against the other fabric take-off roller in an individually adjustable manner.
    Type: Grant
    Filed: August 31, 1998
    Date of Patent: October 5, 1999
    Assignee: H. Stoll GmbH & Co.
    Inventors: Franz Schmid, Armin Diebold
  • Patent number: 5899094
    Abstract: A flat knitting machine comprising: at least a pair of front and rear needle beds defining a gap therebetween; and a set-up device disposed below said gap, said set-up device including: a plurality of setting-up needles, each having a setting-up needle base member and a setting-up needle slider member, the setting-up needle slider member being movable relative to the setting-up needle base member to selectively hold and release a set-up portion of a knitted fabric; a setting-up needle bed supporting the plurality of setting-up needles so that the plurality of setting-up needles are juxtaposed to one another and that each of the setting-up needles is movable in both a fabric pull-down direction and a direction opposite thereto; first biasing means for biasing each of the setting-up needles in the fabric pull-down direction relative to the setting-up needle bed; and setting-up needle hold and release means for moving the setting-up needle slider member relative to the setting-up needle base member to thereby co
    Type: Grant
    Filed: November 5, 1997
    Date of Patent: May 4, 1999
    Assignee: Shima Seiki Manufacturing, Ltd.
    Inventor: Kenji Ikoma
  • Patent number: 5870904
    Abstract: Knitting fabric take-down devices, located in front and back of and facing each other across a knitting fabric passageway formed under a needle bed gap between at least a pair of front and back needle beds of a flat knitting machine, for taking down a knitting fabric. Each of the knitting fabric take-down device includes a front knitting fabric take-down mechanism for capturing only a front part of the knitting fabric in the knitting fabric passageway and taking it down; a back knitting fabric take-down mechanism for capturing only a back part of the knitting fabric and taking it down; and a take-down force adjusting mechanism for adjusting a take-down force of each of the knitting fabric take-down mechanism.
    Type: Grant
    Filed: November 3, 1997
    Date of Patent: February 16, 1999
    Assignee: Shima Seki MFG., Ltd.
    Inventors: Masahiro Shima, Kenji Ikoma, Yoshiaki Hashimoto
  • Patent number: 5575162
    Abstract: An apparatus for controlling twist in a tubular knitted fabric being withdrawn from a circular knitting machine includes an annular twist control member rotatably mounted to the circular knitting machine for disposition within the tube of the fabric. The twist control member is independently rotatable from the other rotational aspects of the circular knitting machine and frictionally imparts counter rotation to the fabric to prevent twist. Optionally, various rotations of the twist control member may be achieved to reduce or impart twist as desired.
    Type: Grant
    Filed: October 3, 1995
    Date of Patent: November 19, 1996
    Assignee: Guilford Mills, Inc.
    Inventors: Ed Gray, Clark Gurganus
  • Patent number: 5566558
    Abstract: A circular knitting machine and take-up mechanism therefor includes a knitting unit for forming a tubular knit fabric, a first set of let-off rolls for flattening the tubular fabric into a double-layer web and delivering the web from the knitting unit, a slitter for slitting the flattened tubular fabric longitudinally along a predetermined line, a spreader for spreading the slit fabric into a single layer web, the spreader being extendable and contractible to spread fabrics of varying widths, a second set of let-off rolls for drawing the fabric across the spreader and a fabric take-up for taking-up the single layer web for storage and subsequent use.
    Type: Grant
    Filed: August 7, 1995
    Date of Patent: October 22, 1996
    Assignee: Precision Fukuhara Works, Ltd.
    Inventor: Koji Tsuchiya
  • Patent number: 5566604
    Abstract: A machine for producing braid or circular knit fabric has a withdrawal unit for the continuous product driven by a synchronous motor receiving its drive signal from a digital frequency converter. A pulse generator connected with the main motor of the machine produces pulses representing the speed of the main motor which are integrated and applied to a multiplier introducing the proportionality factor between the main drive and the withdrawal drive. That multiplier has an output which is applied as the input to the digital frequency converter.
    Type: Grant
    Filed: November 30, 1994
    Date of Patent: October 22, 1996
    Assignee: Spirka Maschinenbau GmbH & Co. KG
    Inventors: Werner Sperling, Jurgen Luhrig
  • Patent number: 5560225
    Abstract: A unit is disclosed for transmitting motion to the hosiery suction tube in a circular knitting machine of the type having a fixed supporting plate to which a cylinder support with a vertical axis, an internal hosiery passage tube that is coaxial to the cylinder support, and an underlying perforated tube are rotatably coupled. The unit has respective flanges rigidly coupled below the cylinder support and above the perforated tube and supporting respective pluralities of permanent magnets that are distributed in an annular fashion and constitute a magnetic coupling between the flanges for the rotary actuation of the perforated tube. A collar of a material that has high magnetic reluctance is arranged in the air gap formed between the rings of facing magnets and has a device for rotary coupling to the hosiery passage and a device for selective coupling to said flanges or to said fixed supporting plate for causing or stopping the rotation of the hosiery passage tube.
    Type: Grant
    Filed: September 20, 1995
    Date of Patent: October 1, 1996
    Assignee: MATEC S.r.l.
    Inventor: Paolo Salucci
  • Patent number: 5425251
    Abstract: A fabric take-off roller arrangement for flat bed knitting machines is provided with a driven fabric take-off roller that has roller elements disposed next to each other in the axial direction. To ensure that, even with irregular thickenings of the fabric to be taken off, engagement of the fabric take-off roller arrangement is provided both in the region of the thickening and in the adjacent region(s) of the fabric to be taken off, it is provided that the roller elements engage one another in a co-rotational manner at their ends facing one another and are rotatably held on respectively one support carrier, that the support carriers are pivotably held in a direction perpendicular to the orientation of the roller elements that the ends of the roller elements facing each other are flexibly seated against each other as well as in the support carrier, and that the fabric take-off roller is pressed against a counter-roller, between which rollers the fabric run is taken off.
    Type: Grant
    Filed: December 13, 1993
    Date of Patent: June 20, 1995
    Assignee: H. Stoll GmbH & Co.
    Inventors: Franz Schmid, Gunther Kazmaier
  • Patent number: 5381676
    Abstract: A fabric take-up apparatus for a circular knitting machine includes a set of delivery rolls for flattening and delivering the flattened fabric to take-up means which winds the flattened fabric into a roll, sensing means for sensing the tension in the fabric and for generating electrical signals indicative of fluctuations in tension from a predetermined, desired tension in the fabric, variable speed drive means for driving the delivery rolls, and control means for controlling the variable speed drive means responsive to the electrical signals generated by the tension sensing means.
    Type: Grant
    Filed: September 29, 1993
    Date of Patent: January 17, 1995
    Assignee: Precision Fukuhara Works, Ltd.
    Inventors: Takao Shibata, Kozo Taniguchi, Tashio Noguchi, Koji Tsuchiya
  • Patent number: 5369967
    Abstract: The draw-off mechanism for a flat bar knitting machine having needle beds includes a pair of driven feed rollers arranged axially parallel to each other and located adjacent to the needle beds under a gap between the needle beds; a pair of pivoting levers, each pivoting lever being two-armed and having a feed roller mounted at one end thereof and an adjustable stop device for setting a minimum spacing between the feed rollers located at another end of each pivoting lever remote from the feed rollers; and a device for adjusting an initial tension on at least one of the pivoting levers to urge the pivoting levers closer together, so that the driven feed rollers can cooperate with each other and act on a workpiece running between them.
    Type: Grant
    Filed: April 15, 1993
    Date of Patent: December 6, 1994
    Assignee: H. Stoll GmbH & Co.
    Inventors: Franz Schmid, Winfried Kapitel
  • Patent number: 5317885
    Abstract: The present invention pertains to a circular knitting machine with a pair of cutting devices (15) in opposite positions for longitudinally cutting, on two sides, the tubular fabric component and for forming two individual even pieces (13a, 13b) and with two winding units (11, 12) for separately winding the two pieces onto rolls, the pieces being led in opposite directions by central return rollers (16, 17).
    Type: Grant
    Filed: September 22, 1992
    Date of Patent: June 7, 1994
    Assignee: Vignoni S.r.l.
    Inventor: Cesare Vignoni
  • Patent number: 5241841
    Abstract: In a knitting take-off device provided with gripping elements (14) movable through the comb gap of a flat bed knitting machine, the plane of the gripping elements (14) is directed perpendicular to the hooking planes of the knitting needles (13) mounted in the needle beds. As a result, the dimensions of the gripping elements are no longer limited by the width of the comb gap, and the gripping elements (14) can be coupled to additional elements, such as a cover stop rod (16). By means of the cover stop rod (16), the opening (14.2) of the gripping element (14) can be closed and a thread take-up space (20), closable by the head (14.1) of the gripping element (14), can be formed.
    Type: Grant
    Filed: September 11, 1991
    Date of Patent: September 7, 1993
    Assignee: H. Stoll GmbH & Co.
    Inventors: Franz Schmid, Thomas Stoll
  • Patent number: 5179846
    Abstract: This invention provides a cloth winding device of a circular knitting machine. A gear box is provided on the swivel frame of the machine. In the box, there are provided sets of fine adjustment gears and adjacent coarse adjustment gears on their respective shafts so that power is transmitted from the coarse adjustment gears through the rear row gears to the fine adjustment gears and then outputs from the cloth pulling shaft. The cloth winding shaft on the opposite side is driven by the respective bevel gears. Thereby, a multiple of speed ratios can selectively obtained by means of the adjustment devices provided on the gear box. The cloth winding roller is driven by the cloth pulling shaft. By the cooperation of a rocking arm and its related spring, the cloth roller can be raised or lowered automatically in accordance with the size of the cloth roll.
    Type: Grant
    Filed: October 30, 1990
    Date of Patent: January 19, 1993
    Inventor: Chin-Yung Lin
  • Patent number: 5133197
    Abstract: In the apparatus for drawing down knitted fabrics, a fixed position roller, a pressure roller and a drive for the rollers are located below mountainously opposed needle heads. The contact pressure between the rollers is controlled by a pivot mechanism including a cam driven by a motor and a spring connected to the cam and also connected to a pivot arm supporting the pressure roller. Rotation of the cam controls the spring force exerted on the pivot arm by the spring and thus controls movement of the pivot arm to lessen or increase contact pressure between the rollers.
    Type: Grant
    Filed: September 26, 1990
    Date of Patent: July 28, 1992
    Assignee: Shima Seiki Mfg. Ltd.
    Inventors: Masahiro Shima, Kenji Ikoma
  • Patent number: 5097684
    Abstract: A set-up comb 6, disposed below the gap 3 between needle beds in a V-bed flat knitting machine, comprises a comb bed 5 and a plurality of setting-up needles 4 mounted to the comb bed 5. Each setting-up needles comprises a needle body 10 fixed to the comb bed 5 and a slider 11 slidably combined with the needle body 10. The needle body 10 has a hook accommodating protrusion 20 formed at its front end for releasably receiving therein a hook 12 formed at the upper end of the slider 11. When the slider 11 is elevated, the hooks 12 retract into the hook accommodating protrusions 20 of corresponding needle bodies 10 and thus the set-up yarn 75a, 75b engaged by the hooks 12 are disengaged from the hooks.
    Type: Grant
    Filed: May 7, 1991
    Date of Patent: March 24, 1992
    Assignee: Shima Seiki Mfg., Ltd.
    Inventor: Masahiro Shima
  • Patent number: 5040384
    Abstract: A set-up comb 6, disposed below the gap 3 between needle beds in a V-bed falt knitting machine, comprises a comb bed 5 and a plurality of setting-up needles 4 mounted to the comb bed 5. Each setting-up needles comprises a needle body 10 fixed to the comb bed 5 and a slider 11 slidably combined with the needle body 10. The needle body 10 has a hook accommodating protrusion 20 formed at its front end for releasably receiving therein a hook 12 formed at the upper end of the slider 11. When a double-stroke course set-up yarn 75a, 75b has been laid in zigzag pattern between the front and rear needle beds 2f, 2r in such a way that the forward-and back-course portions of the yarn 75a, 75b are crossed at a plurality of positions above the gap 3, the set-up comb 4 is elevated to cause the hooks 12 of individual slider 11 to hook the yarn 75a, 75b at the crossing sites thereof, so that the set-up yarn 75a, 75b can be lowered by the set-u comb 6 to a level below the gap 3.
    Type: Grant
    Filed: January 25, 1990
    Date of Patent: August 20, 1991
    Assignee: Shima Seiki Mfg., Ltd.
    Inventor: Masahiro Shima
  • Patent number: 5007253
    Abstract: A portable clipping and shearing apparatus for clipping and shearing float from lace sheet. The apparatus is mechanically coupled to the lace-knitting machine and is adapted to take up the sheet directly as it emerges from the lace-knitting machine to clip and shear the float forthwith. Consequently, trimmed lace sheet flows out of the portable device of the present invention, avoiding costly multiple handling of the lace sheet. The portable clipping and shearing apparatus is provided with a synchronization mechanism that synchronizes its processing speed to that of the lace-knitting machine. As the portable shearing and clipping apparatus is adapted for the relatively slow lace making machine, the device of the present ivnention is small enough to be easily transported to the location of a warp knitting machine, simple in construction, and more commonly affordable.
    Type: Grant
    Filed: February 6, 1989
    Date of Patent: April 16, 1991
    Inventor: Thomas Rahner
  • Patent number: 4969340
    Abstract: This device for tensioning knitted fabric in a circular knitting machine. In particular of the large-diameter type, comprises a plurality of tensioning rollers arranged with their respective axes in succession along a broken line inscribed in a circumference which is concentric to the machine; the tensioning roller co-operate with presser counter-rollers to retain the knitted fabric, and actuation elements act on the tensioning rollers and rotate them to tension the knitted fabric while it is being formed. The actuation elements are constituted by hydraulic motors, each motor being arranged inside a respective one of the tensioning rollers and acting on the roller to controllably rotate it about its axis.
    Type: Grant
    Filed: April 12, 1989
    Date of Patent: November 13, 1990
    Assignee: MEC-MOR S.r.l.
    Inventor: Angelo Brega
  • Patent number: 4945734
    Abstract: A knitwork tensioning device has a fabric locking mechanism normally disposed in the lower needle cylinder of a double cylinder circular knitting machine. The fabric locking mechanism has a set of locking fingers capable of fluid pressure actuation for locking the fabric being knitted against the bottom end of an inner movable tube within the upper needle cylinder. The fabric locking mechanism is itself capable of fluid pressure actuation for movement into the upper needle cylinder. Locked against the inner movable tube by the locking fingers, the fabric is stretched as the fabric locking mechanism travels with the inner movable tube up into the upper needle cylinder under fluid pressure. The upper needle cylinder has also mounted therein an outer movable tube slidably fitted over the inner movable tube.
    Type: Grant
    Filed: September 22, 1989
    Date of Patent: August 7, 1990
    Assignee: Nagata Seiki Kabushiki Kaisha
    Inventor: Kakuji Maruyama
  • Patent number: 4807451
    Abstract: The knitted fabric winding-up device is formed as an auxiliary device which can be located beneath the needle beds (21, 22) on a lower supporting cross member (10), at the front side of a flat knitting machine, from which it is removable, and by means of a winding roller for formation of the fabric package (24) is pivotable from an inner position to an outer position. The winding roller (13) can, even in the outer position, be driven by a motor located in the lower supporting cross member (10) or can be decoupled and turned by hand.
    Type: Grant
    Filed: March 4, 1988
    Date of Patent: February 28, 1989
    Assignee: H. Stoll GmbH & Co.
    Inventors: Ernst Goller, Fritz Walker
  • Patent number: 4790152
    Abstract: A fabric draw-off arrangement for flat knitting machines has a driven fabric draw-off member consisting of a plurality of roller elements and pressure rollers of a fabric pressure member associated with the roller elements which are mounted on a common rocker shaft and are adjustably and resiliently pressable against the respective roller element. In order during knitting to achieve automatically adjustable reproducibly uniform knitting draw-off, the pressure rollers are together pivotable by motor means into variable end positions and are pivotable from these positions and the pressure force of each pressure roller is individually adjustable by motor means.
    Type: Grant
    Filed: November 12, 1987
    Date of Patent: December 13, 1988
    Assignee: Universal Masachinenfabrik Dr. Rudolf Schieber Gmbh & Co.
    Inventor: Otto Geitner
  • Patent number: 4777808
    Abstract: A cloth draw-off roller for flat knitting machines has individual roller elements rotatably mounted on a draw-off shaft and intermediate rings arranged with axial play relative thereto between the roller elements, which intermediate rings are rigidly secured to the draw-off shaft and are resiliently connected to respect roller elements. In order to ensure mutually independent operation of the roller elements, means are provided which establish a minimum axial spacing between mutually facing surfaces of axially sequential intermediate rings, which spacing is larger than the axial spacing of the two faces of the respective roller element coming into contact with these surfaces.
    Type: Grant
    Filed: July 16, 1987
    Date of Patent: October 18, 1988
    Assignee: Universal Maschinenfabrik
    Inventor: Gottfried Kuhnert
  • Patent number: 4774820
    Abstract: A flat knitting machine with a take-down system comprising a rotatable take-down roller and a counter-pressure member, between which the knitted fabric produced is clamped to draw it down during the production of the fabric, is improved in such a way that the take-down system functions faultlessly with fabrics which gradually increase in width as well as with fabrics which involve a rapid and considerable increase in the number of needles.
    Type: Grant
    Filed: December 9, 1987
    Date of Patent: October 4, 1988
    Assignee: H. Stoll GmbH & Co.
    Inventor: Matias Mestre Mas
  • Patent number: 4697439
    Abstract: A device consists of equidistant rods, located below the needle bed of a machine, perpendicular to the traverse direction of movement of a carriage, with the upper ends bent downwards to form a corresponding number of latch sections, and directed towards the upper heads of the needle beds.The rods are controlled by a cam on the carriage; raising of the rods causes the latch sections to be inserted between the stitches of the fabric in the last rows of the fabric portion situated below the working area of the sections: in this way the latch sections act as stops for the rows.Downstream from the working area of the needles, there is a fabric presser plate which presses the row just formed in a downwards direction and according to a preset pressure.
    Type: Grant
    Filed: August 12, 1986
    Date of Patent: October 6, 1987
    Assignee: E.M.M. Emiliana Macchine Maglieria S.r.l.
    Inventor: Benito Stoppazzini
  • Patent number: 4688402
    Abstract: An improved transmission mechanism assembly for knitting machines having a shaft structure and gear combination mounted at the lower end of the transmission mechanism. The transmission mechanism incorporates an electronically controlled magnetic relay. When the base and mouth of knitted bags require high density knitting in order to form reinforced belts, cessation of fabric takeup during knitting processes can be performed on the knitted bag in order to form reinforced belts. As a result, rigid PP or PE knitted bags can be easily and conveniently made.
    Type: Grant
    Filed: August 29, 1986
    Date of Patent: August 25, 1987
    Inventor: Kuo-Ching Huang
  • Patent number: 4665720
    Abstract: Device and process for pulling with reversing circular knitting frames, comprising a cylindrical shell coaxial with the needle cylinder or the needle cylinders of the frame, and positioned above the plane of formation of the knitted fabric. A cylindrical sleeve is positioned coaxially with the shell, and axially slidable within the shell. A rotatable expandable tensioning piston is positioned coaxially with the sleeve and axially movable within said sleeve to expand and clamp the knitted tubular fabric inside the sleeve and drag upwardly the sleeve as well as the tubular knitted fabric.
    Type: Grant
    Filed: June 25, 1985
    Date of Patent: May 19, 1987
    Assignee: Officine Savio S.p.A.
    Inventors: Paolo Beconcini, Giuseppe Caccivio, Dante Nannini
  • Patent number: 4660392
    Abstract: A device for controlling the tension of the knitted fabric includes two parallel rows of rollers, which are supported by two plane surfaces mounting two needle beds upon which a carriage is able to move longitudinally and alternately.The rows of rollers are located beneath the needle beds with the rollers of the first row, able to turn in a single direction, being in contact with the corresponding rollers of the second row, thus creating a series of independent pairs of rollers between which the knitted fabric is inserted.Each pair of rollers is moved by a rod, mounted on the second plane surface, featuring a heel upon which moving cams act determining the consequent rotation of the corresponding pair of rollers, while fixed cams, acting upon the heels, return the rods to their initial position.
    Type: Grant
    Filed: August 12, 1986
    Date of Patent: April 28, 1987
    Assignee: E.M.M. Emiliana Macchine Maglieria S.R.L.
    Inventor: Benito Stoppazzini
  • Patent number: 4646544
    Abstract: For a knitted fabric expander device on flat bed knitting machines, the guide bars positioned at the edge of the knitted fabric with their end projecting over the comb gap (13) are coupled in a detachable manner via a switch body (31) with a holder/expander (18) arranged beneath the needle beds (11, 12). The guide bars can be drawn upwards through the comb gap (13) together with the switch body (31) and reinserted from above into their adjustable or movable holder/expander (18).
    Type: Grant
    Filed: May 19, 1986
    Date of Patent: March 3, 1987
    Assignee: H. Stoll GmbH & Co.
    Inventor: Ernst Merkh
  • Patent number: 4633914
    Abstract: Apparatus and method to detect high tension in a web material being taken-up and cutting off the take-up device upon such detection to prevent stretching and necking of the fabric being handled. The detection device provides a time delay between detection of the condition of high tension and deactivation of the fabric take-up apparatus.
    Type: Grant
    Filed: March 10, 1986
    Date of Patent: January 6, 1987
    Assignee: Milliken Research Corporation
    Inventor: William B. Carry
  • Patent number: 4592214
    Abstract: A fabric draw-off roller (11) is described for flat-bed knitting machines equipped with individual roller elements (14, 14') situated side-by-side in line on a shaft (12), the rollers being allowed to turn relative to each other, but preferably restricted in their amount of angular movement. In order to ensure, with fabric draw-off rollers (11) of this type, that loose threads of the knitted fabric are prevented from entangling and jamming between neighboring roller elements (14, 14') when drawing off fabric from the machine, the individual roller elements (14, 14') are arranged at an axial distance from each other thereby forming a gap (54, 54') distance spacer (32, 32') is provided having a smaller external diameter than the maximum diameter of the roller element with at least one of its ends overlapping and penetrating an axial bore of an adjacent roller element (14, 14').
    Type: Grant
    Filed: August 28, 1984
    Date of Patent: June 3, 1986
    Assignee: H. Stoll GmbH & Co.
    Inventors: Ernst Goller, Gunther Kazmaier
  • Patent number: 4549412
    Abstract: This describes a fabric take-down device (11) for flat knitting machines which is provided with a driving motor (12) and an associated adjusting device (13) to set the torque of the driving motor (12) which determines the take-down pull through the motor current.In order to provide in a fabric take-down arrangement (11) of this character for a substantial starting and controlled pull, and in particular to cater for a finely-sensitized regulation even in the area of small torque values, provision is made for the adjusting device (11) to be constituted by a motor-current regulating system (26) which is provided with inputs (27, 28, 33, 34, 39) for setting the target figures and for at least one actual value taken from the driving motor (12), and the regulating system (26) further has an input (32) for an augmenting shift pulse for a short-term increase in the torque of the driving motor (12) where there is a small target tongue (FIG. 1).
    Type: Grant
    Filed: January 19, 1984
    Date of Patent: October 29, 1985
    Assignee: Stoll GmbH and Company
    Inventors: Thomas Stoll, Jurgen Ploppa, Ernst Goller
  • Patent number: 4516410
    Abstract: A knitwork drawing device which has a hollow piston rod movable axially through one of the needle cylinders in a double cylinder circular knitting machine, and a knitwork retaining member arranged at the height of the stitch-formation area and rotatable with the needle cylinders. The hollow piston rod is secured to a fluid-operated piston slidable in a cylindrical chamber coaxial with the needle cylinders. Tensioning of the knitwork is effected by leaving the hollow piston rod to rest on the knitwork being knitted, which is held at its initial portion by the retaining member internally of the hollow piston rod and by the needles which continue to knit externally of the hollow piston rod. The whole stroke of the piston and hollow piston rod is thus the half of the whole length of the knitwork and the axial dimension of the knitting machine is considerably reduced.
    Type: Grant
    Filed: February 4, 1983
    Date of Patent: May 14, 1985
    Assignee: Lonati S.p.A.
    Inventor: Francesco Lonati
  • Patent number: 4503690
    Abstract: In a fabric take-down mechanism for a flat knitting machine provided with stitch strippers, the edge of the fabric disposed in front of the stitch strippers is engaged by a plurality of take-down hooks (27) of a hook bar (28) located beneath the comb gap (13) defined by the ends of the needle beds (10 and 11). The engagement of the fabric edge is produced by a free fall of the take-down hooks (27) over a limited initial length of take-down travel (A). The take-down of the fabric by the take-down hooks (27) is effected synchronously with the movement of a succeeding take-down roller (13) in the effective area of which the edge of the fabric is carried by means of the take-down hooks (27).
    Type: Grant
    Filed: July 27, 1983
    Date of Patent: March 12, 1985
    Assignee: H. Stoll GmbH and Company
    Inventors: Ernst Goller, Fritz Walker
  • Patent number: 4503689
    Abstract: The fabric take-down mechanism for flat knitting machines has an auxiliary take-down roller (22) following the main take-down roller (10) and extending over the whole length of the needle beds, this auxiliary roller having edges (24) and being grounded through metallic retaining loops (25). The auxiliary take-down roller (22) cooperates with a smooth but likewise electrical conducting counter plate (21).
    Type: Grant
    Filed: July 27, 1983
    Date of Patent: March 12, 1985
    Assignee: H. Stoll GmbH & Co.
    Inventors: Ernst Goller, Gunther Kazmaier, Hans-Dieter Trissler, Henning Schmidt
  • Patent number: 4488416
    Abstract: In a V-bed flat knitting machine, a set-up comb having a plurality of teeth which are hook shaped at their upper ends is up and down movably disposed beneath a gap between a pair of needle beds. When the set-up comb is elevated until the tooth ends thereof extend above the gap, the hooks at the tooth ends hook up loops to form a set-up course. If released at this stage, the comb is allowed to lower by its own weight the set-up course end of the fabric being knitted as knitting progresses while giving adequate tension to the fabric. There is provided a knockover plate such that when the set-up comb is lowered to a predetermined position the plate may push the hook-engaged fabric at a portion adjacent the lower end thereof and from the back side of the hooks. If the set-up comb is slightly elevated or the knockover plate is slightly lowered while the fabric is so pushed, then the set-up course is disengaged from the hooks.
    Type: Grant
    Filed: April 1, 1983
    Date of Patent: December 18, 1984
    Assignee: Shima Idea Center Co. Ltd.
    Inventors: Masahiro Shima, Hirozi Nishida
  • Patent number: 4478058
    Abstract: In the take-down mechanism the plurality of coaxial roller sections (14.1 . . . 14.x) of the take-down roller are moveable on a common shaft (16) and adapted to be coupled separately and selectively with a driving means (17/18) that is to say independently of one another. A return rotary movement of the roller sections is prevented by one-way clutches constituted by loop springs (35,36). The common shaft (16) can be turned for adjustment of all the roller sections in common. Annular guards (28) prevent threads intruding between the individual roller sections (14). (FIG. 1).
    Type: Grant
    Filed: March 25, 1983
    Date of Patent: October 23, 1984
    Assignee: H. Stoll GmbH & Co.
    Inventors: Gunther Kazmaier, Ernst Goller
  • Patent number: 4454731
    Abstract: This invention relates to a knitted fabric spreader device for flat knitting machines which have spiked rotatable rollers (14) disposed beneath the comb gap (12) of the needle beds of the machine. The spiked rollers (14) are mounted over the full length of the needle beds (10, 11) on a common carrier rod (13) concentric with this rod, and the common carrier rod (13) can be moved transversely to the longitudinal direction of the needle beds to provide for clearance of the comb gap (12) of the machine. To cater for this adjustment the carrier rod (13) is held on at least slides adjustable by means of a control cam (27). The rollers (14) are so mounted between eccentric intermediate discs (15) provided with a smooth peripheral edge that spikes (38) of the rollers (14) project radially above the intermediate discs (15) over a part only of the carrier rod (13) to engage the knitted fabric (29) (FIG. 2).
    Type: Grant
    Filed: February 25, 1983
    Date of Patent: June 19, 1984
    Assignee: H. Stoll GmbH & Co.
    Inventors: Ernst Goller, Gunther Kazmaier, Hermann Schmodde
  • Patent number: 4407145
    Abstract: A knitwork drawing device which has a hollow piston rod movable axially through one of the needle cylinders in a double cylinder circular knitting machine, and a knitwork retaining member arranged at the height of the stitch-formation area and rotatable with the needle cylinders. The hollow piston rod is secured to a fluid-operated piston slidable in a cylindrical chamber coaxial with the needle cylinders. Tensioning of the knitwork is effected by leaving the hollow piston rod to rest on the knitwork being knitted, which is held at its initial portion by the retaining member internally of the hollow piston rod and by the needles which continue to knit externally of the hollow piston rod. The whole stroke of the piston and hollow piston rod is thus the half of the whole length of the knitwork and the axial dimension of the knitting machine is considerably reduced.
    Type: Grant
    Filed: July 10, 1978
    Date of Patent: October 4, 1983
    Assignee: Lonati S.p.A.
    Inventor: Francesco Lonati
  • Patent number: 4359881
    Abstract: A drawing device for a straight knitting machine comprises two belts capable of being continuously driven in opposite directions by respective drive shafts over two pulleys of small diameter. The pulleys are located in the area in which the stitches are formed and extend over the entire useful length of the needle rows of the knitting machine. The pulleys and thereby the belts are supported by pivoting frames and the belts are pressed one against the other by the rotation of their drive shafts. In use, knitting is drawn gently and continuously, with the possibility of sliding, between the belts, as the stitches are formed and quite close to the area in which these stitches are formed.
    Type: Grant
    Filed: July 22, 1980
    Date of Patent: November 23, 1982
    Assignee: Atelier de Construction Steiger S.A.
    Inventors: Marcello Baseggio, Louis Frund
  • Patent number: 4273163
    Abstract: The fabric take-off device comprises a fabric take-off roller mounted to be movable transversely of its longitudinal axis and two associated rod-shaped fabric guide elements which are mounted on fixed axes for supplying the fabric to the take-off roller and for taking the fabric away from the roller. The fabric tension causes the take-off roller to be pressed against the two guide elements due to the movable mounting of the roller. This contact-pressure force increases automatically as the cloth tension increases. A very reliable fabric take-off is obtained without slipping of the fabric on the take-off roller. To avoid damage to the fabric, the take-off roller need not have a rough surface nor need any pins, but may have a relatively smooth surface made, for example, of plastics.
    Type: Grant
    Filed: January 16, 1979
    Date of Patent: June 16, 1981
    Assignee: Sulzer Brothers Limited
    Inventor: Erwin Pfarrwaller
  • Patent number: 4236390
    Abstract: Apparatus for controlling the material tension in a knitting machine, particularly a circular knitting machine, by employing a permanent magnet-excited d.c. motor and an associated circuit to drive a motor torque-dependent material take-off mechanism through the generation of a variable magnitude, pulsed current to power the motor. The magnitude of the current may be set by the operator, with the pulse/no pulse ratio of the current being controlled by the operating mode of the knitting device. In a preferred embodiment, an additional circuit monitors the operation of the current control circuit to detect and signal malfunctions.
    Type: Grant
    Filed: November 9, 1978
    Date of Patent: December 2, 1980
    Assignee: Terrot Strickmaschinen GmbH
    Inventors: Jochen Blank, Dieter Bobe
  • Patent number: 4233825
    Abstract: Disclosed is an improved knitting machine in which special steps have been taken to provide for close correlation of the operation of the knitting filament in-feed equipment and the knitted fabric out-feed equipment with the speed of the knitting head itself, to produce a more uniform and better quality knitted product, and to reduce the danger of filament or fabric breakage caused by jamming at the knitting head or at one of the pieces of feed equipment. These steps are particularly important in the knitting of wire mesh fabric, because wire filament is less stretchable than most textile filaments and thus less able to compensate for variations in the speed of the various pieces of equipment acting upon it as it passes through the machine. In particular, the filament in-feed equipment, the fabric take-up equipment, and if desired, the fabric take-down equipment, are all driven by power trains which include the knitting head.
    Type: Grant
    Filed: May 5, 1978
    Date of Patent: November 18, 1980
    Assignee: Glitsch, Inc.
    Inventor: Donald L. Glaspie
  • Patent number: 4192353
    Abstract: The cloth take-up system is provided with an additional deflecting element which is disposed in the path of travel of the cloth between a first deflection element and the take-up roller in order to increase the wrapping angle of the cloth about the take-up roller. This additional deflection element can be integrated with the first deflection element by means of a Y-shaped member. Also, a contact-pressure element is positioned to press the travelling cloth against the take-up roller.
    Type: Grant
    Filed: June 27, 1978
    Date of Patent: March 11, 1980
    Assignee: Sulzer Brothers Limited
    Inventor: Otto Hintsch
  • Patent number: 4047399
    Abstract: The invention relates to a method and apparatus for knitting a narrow band in which a special effect yarn for use in the band and the band itself, are knitted simultaneously on one machine and the special effect yarn is taken off and guided directly to the needles knitting the band.
    Type: Grant
    Filed: December 1, 1975
    Date of Patent: September 13, 1977
    Assignee: R. W. Frost Limited
    Inventors: Robert Walter Frost, Anne Winnifred Morris
  • Patent number: 4036266
    Abstract: This invention relates to an improvement in a cloth take-up motion for looms with gradual or intermittent taking-up of cloth in which a take-up roller is adapted to be driven by drive shaft means and gear system means, and wherein the drive shaft executes one revolution with each weft insertion, the improvement comprising crank means and pin means on said drive shaft means, Maltese cross means in which said pin means is adapted to engage, and reduction gear means connecting said Maltese cross means with said take-up roller.
    Type: Grant
    Filed: April 1, 1976
    Date of Patent: July 19, 1977
    Assignee: Lindauer Dornier Gesellschaft mbH.
    Inventors: Siegbert Gsell, Hans Geiger, Hans-Jurgen Maierhofer
  • Patent number: 4028912
    Abstract: A drawing-off mechanism having at least two driven rollers for drawing off knitted fabric in which the rollers are positively driven at the same peripheral speed while being resiliently pressed against each other to permit drawing off fabrics of varying thicknesses without slippage.
    Type: Grant
    Filed: December 17, 1975
    Date of Patent: June 14, 1977
    Assignee: Sulzer Morat GmbH
    Inventor: Richard Schneck