Means To Control Motion Of Needle, Or Needle Cooperating Element Patents (Class 66/204)
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Patent number: 11708650Abstract: A fabric woven by imitating warp knitting, which includes first warps, second warps, first wefts, and second wefts; the first warps and the first wefts are interlaced to form the face of the fabric, and the second warps and the second wefts are interlaced to form the back of the fabric; and 7 to 15 weft interlacing points are arranged between each two adjacent groups of warp interlacing points on the second warps. The fabric woven by imitating warp knitting in the present invention has not only the appearance style of woven fabrics but also the characteristics of good air permeability and good hand feel of warp-knitted fabrics.Type: GrantFiled: September 11, 2019Date of Patent: July 25, 2023Assignee: ADVANCE DENIM CO., LTD.Inventor: Zongwen Wang
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Patent number: 11441250Abstract: A knitting method for a warp knitted jacquard three-color figured fabric comprising: (1) defining the basic traverse information of a jacquard bar in non-offset state; (2) A-color pattern area is composed of jacquard pattern texture and jacquard pattern needle supplement texture; (3) B-color pattern area is composed of jacquard pattern texture and jacquard pattern needle supplement texture; (4) a mesh structure of C-color ground net area is composed of jacquard mesh texture and ground bar texture; (5) a pattern contour area is formed by using two jacquard bars to bar the outer contour of the A-color pattern area or the outer contour of the B-color pattern area; (6) the elastic area is composed of a ground bar texture, and a ground bar is used to knit the elastic area texture.Type: GrantFiled: December 18, 2018Date of Patent: September 13, 2022Assignee: JIANGNAN UNIVERSITYInventors: Gaoming Jiang, Honglian Cong, Zhijia Dong, Haisang Liu, Bo Liu
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Publication number: 20150128653Abstract: A warp knitted fabric includes a set of non-elastomeric yarn of substantially the same type, fully threaded from a guide bar at the front side of the Tricot type warp knitting machine and knitted in a close 2×1 stitch pattern, and a set of elastomeric yarn of substantially the same type, fully threaded from a guide bar at the rear side of the Tricot type warp knitting machine and knitted in an open 1×1 pillar stitch pattern. The gripping and gummy characteristics on the technical face of the fabric composed of the non-elastomeric and elastomeric yarns are firmly accomplished and quantifiably exposed. A method of manufacturing the warp knitted fabric of this type is also disclosed.Type: ApplicationFiled: November 8, 2013Publication date: May 14, 2015Applicant: Pacific Textiles LimitedInventor: Chun Wah Samuel YEUNG
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Publication number: 20140060119Abstract: A method, an elongating device, a Raschel knitting machine comprising the elongating device for producing nets with elongated stitches and a net comprising elongated stitches is described. The method comprises the steps of continuously generating new loops for elongating the two rows of loops by additional loops and dragging the rows of loops in a machine direction, generating a first stitch of the weft by joining the weft to a loop of the first row and to a loop of the second row, and positioning the first stitch across a surface of an elongating device for preventing the first stitch from traveling with the warps knitted to loops in the machine direction. The joining is configured for elongating the first stitch by pulling additional weft material, and the surface of the elongating device is carrying out a reciprocating movement towards the first stitch. Further, an elongating device for elongating of the stitches is described.Type: ApplicationFiled: December 1, 2011Publication date: March 6, 2014Applicant: KARATZIS S.A.Inventor: Antonios Karatzis
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Publication number: 20130298612Abstract: A warp knitted fabric to be used for an epidermis material to avoid stickiness and dampness due to sweating when one is seated for a long time, and which is light-weight and provides superior functionality; has a denbigh stitch texture or a cord stitch texture formed by supplying a base yarn by a front guide bar of a warp knitting machine having at least two guide bars, supplying an insertion yarn by a guide bar rearward of the front guide bar to knit an insertion texture, and knitting the insertion yarn underlapping the insertion yarn in the same direction and by an amount corresponding to the same number of needles as the underlapping of the base yarn supplied by the front guide bar, whereby the insertion yarn is exposed at a sinker-loop-side surface of a warp knitted fabric intermittently in a warp direction.Type: ApplicationFiled: December 22, 2011Publication date: November 14, 2013Applicant: SEIREN CO., LTD.Inventors: Kyoichi Yuikawa, Isao Honda, Fumio Shirasaki
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Patent number: 7739888Abstract: The invention relates to a method and related equipment for manufacturing shaped fabrics or anatomically shaped tubular hosiery and knitwear items, obtained with Raschel looms having preferably two parallel needle beds and automatic latch needles. During the knitting process, by gradually varying the height of the needle bed and of the sinking plane lying above with respect to the needles sliding in the same bed, knitting density can also be suitably changed. As a consequence, concerned anatomic parts such as the bodice and ankles of a pair of tights or a stockings as well as the waist and sleeves of a sweater can be shaped with higher accuracy and effectiveness.Type: GrantFiled: November 23, 2004Date of Patent: June 22, 2010Assignee: Santoni S.p.A.Inventor: Franco Sciacca
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Publication number: 20090301141Abstract: A method for producing textile articles with warp-knitting machines, comprising a plurality of steps of shifting at least a first thread-guide (3) bar (2) of jacquard type with shog translational movements and with swing transversal movements, so as to produce textile articles on at least one needle bed (52), shifting at least the first thread-guide (3) bar (2) by means of a corresponding first linear motor, with a shog movement of a first predefined width; varying automatically through control devices (60) the shift controlled by the first linear motor so as to vary the width of the shog movement during the production of the textile articles, and shifting at least the first thread-guide (3) bar (2) with a shog movement having a second predefined width differing from the first one, and automatically controlling by means of the control devices (60) connected to the first thread guide (3) bar (2) at least an individual shift of a needle space of at least a first thread-guide (3) of the first bar (2), in additioType: ApplicationFiled: April 3, 2009Publication date: December 10, 2009Applicant: SANTONI S.P.A.Inventor: Tiberio LONATI
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Patent number: 7441567Abstract: A needle loom is provided with a bearing structure (2), one textile-product (P) forming head (3) installed on the bearing structure (2), two heddle frames (6) capable of intercepting a plurality of warp threads (O), one sickle (9) to bring the two weft threads (T) transversely between the warp threads (O), two movable guides (11) each of which is adapted to intercept one of the weft threads (T), actuators (13) to shift the movable guides (11) and change the weft threads (T) carried by the sickle (9), one needle (18) to temporarily retain at least one of the two weft threads (T) carried by the sickle (9), and a reed (20) to compact the weft threads (T) against the already formed textile product (P). Two electric motors (21), each of which is connected to a respective guide (11) actively move the respective guide (11) in a first way (X) or in a second way (Y) along the predetermined direction (D), upon command of the respective motor (21).Type: GrantFiled: October 18, 2006Date of Patent: October 28, 2008Inventor: Luigi Omodeo Zorini
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Patent number: 7290411Abstract: An oscillating control device (1) for thread-guide bars (2) of linear knitting machines (60), comprising a support (5) that can rotate around a middle axis (6) to which at least one thread-guide bar (2) can be associated, movement means (10) for the support (5), and transmission means (20) operatively connected to the movement means (10) for imparting an oscillating movement to the support (5). The transmission means (20) are operatively associated to the support (5) on at least two separate actuating points (7a, 7b) for moving it with an oscillating movement in a balanced manner with respect to the middle axis (6) thereof. In particular, a pushing action and a pulling action are applied simultaneously on the two actuating points (7a, 7b) by the movement means (10) through the transmission means (20).Type: GrantFiled: March 21, 2007Date of Patent: November 6, 2007Assignee: Santoni S.p.A.Inventor: Tiberio Lonati
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Publication number: 20070220925Abstract: An oscillating control device (1) for thread-guide bars (2) of linear knitting machines (60), comprising a support (5) that can rotate around a middle axis (6) to which at least one thread-guide bar (2) can be associated, movement means (10) for the support (5), and transmission means (20) operatively connected to the movement means (10) for imparting an oscillating movement to the support (5). The transmission means (20) are operatively associated to the support (5) on at least two separate actuating points (7a, 7b) for moving it with an oscillating movement in a balanced manner with respect to the middle axis (6) thereof. In particular, a pushing action and a pulling action are applied simultaneously on the two actuating points (7a, 7b) by the movement means (10) through the transmission means (20).Type: ApplicationFiled: March 21, 2007Publication date: September 27, 2007Inventor: Tiberio Lonati
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Patent number: 7251960Abstract: A crochet galloon machine for warp knitting comprises a front grooved bar (4), a plurality of needles (5) disposed consecutively in side by side relationship along the front grooved bar (4) and movable with a reciprocating motion along a first direction (A), a plurality of eye-pointed needles (8) disposed in front of the needles (5), a plurality of threading tubes (10) disposed above the needles (5). An assembly of interacting levers imparts movement both to the needles 5 and the front grooved bar 4 and is adapted to give the latter an alternated motion component along a second direction (B) substantially parallel to the first motion direction (A), so as to accompany movement of the needles (5) in their longitudinal reciprocating motion and avoid very long needles (5), subject to bending vibrations, to be adopted.Type: GrantFiled: September 19, 2006Date of Patent: August 7, 2007Inventors: Luigi Omodeo Zorini, Marco Carnevale Miino
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Patent number: 7073540Abstract: A needle loom comprises a supporting structure (2), at least one forming head (3) of a textile product (P) installed on the supporting structure (2), at least two heddle frames (6) capable of intercepting a plurality of warp threads (O), at least one sickle (9) to bring at least two weft threads (T) transversely between the warp threads (O), at least two movable guides (11) adapted each to intercept one of the weft threads (T), actuator means (13) to move the movable guides (11) and change the weft threads (T) carried by the sickle (9), at least one needle (18), to temporarily retain at least one of said at least two weft threads (T) carried by the sickle (9), and a reed (20) to compact the weft threads (T) against the already formed textile product. The actuator means (13) comprises at least two electric motors (21), connected each with a respective movable guide (11), to move each guide in a manner independent of the others.Type: GrantFiled: March 30, 2005Date of Patent: July 11, 2006Inventor: Luigi Omodeo Zorini
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Patent number: 6959566Abstract: A textile machine comprising a needle bar (6) carrying a plurality of needles (7), a guide bar (8) carrying a plurality of eye-pointed needles (9) and at least one carrier slide bar (10) carrying a plurality of threading tubes (11); the machine (1) further comprises a main shaft (12) for a synchronised movement of the bars (6, 7, 8) and manufacture of a textile product (5), a first feeding member (20) to feed at least one weft yarn (19) to said threading tubes (11), a second feeding member (40) to feed a plurality of warp yarns (18) to said eye-pointed needles (9) and a take-down member (60) to draw said textile product (5). The machine (1) is also provided with a control apparatus (80) comprising at least one first electromechanical actuator (30), operatively active on said first or second feeding members (20, 40) or on said take-down member (60) for movement of same and a controller (90) for regulation of at least said first actuator (30).Type: GrantFiled: September 24, 2004Date of Patent: November 1, 2005Inventors: Luigi Omodeo Zorini, Pierantonio Franchino
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Patent number: 6253583Abstract: A warp knitting machine with bearded needles (5) and a pattern press comprises a driven press bar (10) having individual press elements thereon. These are so controllable that during the working stroke (47) of the press bar (10) at choice there is provided a press contact onto the hooks (19) of the corresponding bearded needles (5) or not. Every pressing element (46) is provided with a piezoelectric bending transducer ((42) attached at one end whose free end (45) in the direction of the needle bed may either move from a first position during the working stroke 47 into a press contact and in a second position in which the press element 46 or a power transmitting element located forwardly thereof in the direction of the needle bed may be displaced. In this manner, it is possible to provide a safely constructed pattern press suited for high velocity operation.Type: GrantFiled: September 26, 2000Date of Patent: July 3, 2001Assignee: Karl Mayer Textilmachinenfabrik GmbHInventors: Klaus Brandl, Kresimir Mista
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Patent number: 6209362Abstract: The invention relates to a warp knitting machine, especially a crocheting machine, comprising knitting needles guided on a knock-over sinker with warp thread layers which are fitted upstream with warp thread guides and weft thread layer rods assigned to weft thread guides. The invention provides an improvement to a warp knitting machine, characterized in that the weft thread guides of the weft thread layer rods do not cross the knitting needles and the weft thread guides of the weft thread layer rods are assigned feeding means relative to the knitting needles, which can be guided and driven upwards and downwards between the weft thread guides and the knitting needles in such a way that the feeding means place staggered weft threads underneath the assigned knitting needles.Type: GrantFiled: January 19, 2000Date of Patent: April 3, 2001Assignee: Textilma AGInventor: Francisco Speich
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Patent number: 6182476Abstract: The invention relates to a warp knitting loom with individually driven guide bars that are controlled by a control device. A linear motor is used, resulting in a particularly space-saving and flexible driving apparatus. This motor has at least two driving elements which are each connected to a guide bar and can move back and forth in a common stator with a closed magnetic circuit. Each driving element has at least one drive coil which is connected to the control device and whose winding plane is transversal to the magnetic flux.Type: GrantFiled: January 21, 2000Date of Patent: February 6, 2001Assignee: Textilma AGInventors: Fiorenzo Frassi, Maria Pierpaolo Destri
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Patent number: 6109071Abstract: A transmission mechanism of a needle platform of a knitting machine is provided with a three-way master transmission shaft and two three-way slave transmission shafts which are provided with an eccentric actuation seat which is connected with the needle platform by a connection rod in conjunction with a radial bearing. A transmission mechanism of a weft seat of the knitting machine is provided with a transmission wheel, a fastening seat, an eccentric shaft, and actuation crank for bringing about an eccentric motion to convert the transmission power into a linear motion.Type: GrantFiled: September 16, 1999Date of Patent: August 29, 2000Inventor: Ming-Hong Tsai
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Patent number: 6050111Abstract: A guide drive device permits compact reception of a greater number of guide bars and nests within an existing installation space at a side portion of a knitting machine, by disposition of a drive source for guide attaching members in a space above a fan-shaped arrangement. A support member, attached to a machine frame, is provided with the drive source on the upper side of guide bars, directly, or via a base bar which constitutes an attaching and holding member. The guide bars are displaceable by operation of the drive source, and are arranged in parallel ranks successive in a direction intersecting with knitting needle rows. An angle of circumference can thereby be reduced for enhanced use of available space. The nest angle can be further reduced for improved patterning function surpassing that of a conventional Multibar Raschel machine by tightly fastening thread feed guides of the guide attaching members to driving long members respectively carrying out independent shogging motions.Type: GrantFiled: October 14, 1998Date of Patent: April 18, 2000Assignee: Nippon Mayer Co., Ltd.Inventors: Norimasa Nosaka, Hiroshi Narushima
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Patent number: 5918484Abstract: There is provided a warp knitting machine with a fall plate bar having a guide bar assembly carrying guide bars 2 and 3, a supplemental shaft 8 which rotates in dependence upon the main shaft 9 and carries steering device 11. These are part of a fall plate drive which moves the fall plate bar 25 to and fro via a lever arrangement 27. This construction has a comparatively low mass and permits higher drive speeds.Type: GrantFiled: July 28, 1998Date of Patent: July 6, 1999Assignee: Karl Mayer TextilmaschinenfabrikInventor: Franz Exner
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Patent number: 5873267Abstract: The present invention provides a patterning unit of a warp knitting machine having a holding member with a stator of a linear pulse motor disposed thereon and a plurality of moving elements provided at arbitrary intervals on the holding member with parts of the moving elements being constructed as guide points. A control method increases reliability and accuracy of positioning the moving elements and eliminates erroneous operation such as step-out by providing a position sensor related to poles of the stator and by exciting movement of the moving elements on a step by step basis based upon positions of the moving elements. The control method includes providing the moving elements each with a linear motor coil assembly for functioning in conjunction with the stator, defining the poles, to move the moving elements along the holding member.Type: GrantFiled: May 28, 1997Date of Patent: February 23, 1999Assignee: Nippon Mayer Co., Ltd.Inventors: Yoshinori Otobe, Yasumasa Narikiyo, Shigeo Yamagata, Norimasa Hosaka
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Patent number: 5862683Abstract: The present invention provides a patterning unit of a warp knitting machine in which a stator of a linear pulse motor is assembled in a holding member and a plurality of moving elements are provided at arbitrary intervals on the same holding member with part of the moving elements being constructed as a guide point. A control method increases reliability of accuracy of positioning of the moving elements and eliminates erroneous operation such as step-out by providing a position sensor in connection with the poles and by controlling movement of the moving elements based on detected positions thereof and a set of parameters. The control method includes providing the moving elements each with a linear motor coil assembly for functioning in conjunction with the linear motor stator to move the moving elements along the holding member.Type: GrantFiled: May 28, 1997Date of Patent: January 26, 1999Assignee: Nippon Mayer Co., Ltd.Inventors: Yoshinori Otobe, Yasumasa Narikiyo, Shigeo Yamagata, Norimasa Nosaka
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Patent number: 5855126Abstract: The present invention provides a patterning unit of a warp knitting machine having a holding member with a stator of a linear pulse motor disposed thereon and a plurality of moving elements provided at arbitrary intervals on the holding member with parts of the moving elements being constructed as guide points. A control method increases reliability and accuracy of positioning the moving elements and eliminates erroneous operation such as step-out by providing a position sensor and by exciting movement of the moving elements on a step by step basis based upon positions of the moving elements sensed by the position sensor. The control method includes providing the moving elements each with a linear motor coil assembly for functioning in conjunction with the stator to move the moving elements along the holding member.Type: GrantFiled: May 28, 1997Date of Patent: January 5, 1999Assignee: Nippon Mayer Co., Ltd.Inventors: Yoshinori Otobe, Yasumasa Narikiyo, Shigeo Yamagata, Norimasa Nosaka
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Patent number: 5775134Abstract: The present invention provides a patterning unit of a warp knitting machine in which a stator of a linear pulse motor is assembled in a holding member and a plurality of moving elements are provided at arbitrary intervals on the same holding member with part of the moving element being constructed as a guide point. The construction allows a thin linear pulse motor to be realized, erroneous operation such as step-out to be prevented in positioning control and the positioning to be carried out stably regardless of power failure or external noise. To that end, poles of the moving element are disposed so as to face poles on both sides of the stator. Moving element driving coils of the poles of the moving elements, NS directions of two field magnets and teeth of the poles of the stator are set so that a magnetic path of the field magnets runs in the same direction.Type: GrantFiled: November 6, 1996Date of Patent: July 7, 1998Assignee: Nippon Mayer Co., Ltd.Inventors: Yoshinori Otobe, Yasumasa Narikiyo, Shigeo Yamagata, Norimasa Nosaka
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Patent number: 5768916Abstract: A warp knitting machine with at least one knitting needle bar and with at least one guide bar (46) lapping in lengthwise direction with thread guides for the feeding of threads. Incorporated into the guide bar is at least one auxiliary guide bar (72) lapping back and forth in the lengthwise direction of the guide bar with at least one auxiliary thread guide (76), which are driven relatively to one another. This allows for the arrangement of an auxiliary thread guide in an especially simple and space-saving manner.Type: GrantFiled: October 3, 1996Date of Patent: June 23, 1998Assignee: Textilma AGInventor: Silvan Borer
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Patent number: 5675990Abstract: A pile forming warp knitting machine having a spaced plurality of needles and a pair of separate sinker assemblies. These sinker assemblies have a plurality of pile sinkers and a plurality of enclosing, knock-over sinkers. Both pluralities of sinkers are interdigitated with the needles. The pile sinkers each have a distal edge and a proximal edge. The knock-over sinkers each have an enclosing recess. The knock-over sinkers also have (a) an exposed first segment with a knock-over edge, (b) a second segment integral with the first segment, and (c) an enclosing nose integral with the second segment and having an inside edge extending alongside the second segment at a predetermined distance therefrom. In a first working mode the knock-over sinkers reciprocate relative to the needles between an enclosing position and a knock-over position. The enclosing position is at the enclosing recess. The knock-over position is external to the enclosing recess.Type: GrantFiled: May 22, 1996Date of Patent: October 14, 1997Assignee: Karl Mayer Textilmachinenfabrik GmbHInventors: Rainer Kemper, Jakob Weiland
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Patent number: 5675993Abstract: A patterning method and device has yarn guides for guiding pattern yarns in a warp knitting machine and divisional fall plates for knitting pattern yarns in a fall plate structure individually drive-controlled through drive devices. The device comprises any number of moveable bodies having yarn guides, the bodies being installed for movement along a row of knitting needles by the drive devices. For patterning, the moveable bodies are moved through a desired distance along the row of knitting needles so as to be positioned for patterning, thereby providing a patterning zone for pattern yarns corresponding to the number of yarn guides. Thus, it is possible to effect a free varigated patterning which is comparable with the patterning effect provided by the Jacquard control.Type: GrantFiled: October 30, 1995Date of Patent: October 14, 1997Assignee: Nippon Mayer Co. Ltd.Inventors: Kotaro Ono, Yoshinori Otobe, Yoshitsugu Kobayashi, Shigeo Yamagata, Norimasa Nosaka, Kenji Sumida
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Patent number: 5566604Abstract: 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: GrantFiled: November 30, 1994Date of Patent: October 22, 1996Assignee: Spirka Maschinenbau GmbH & Co. KGInventors: Werner Sperling, Jurgen Luhrig
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Patent number: 5553470Abstract: In a warp knitting machine at least one guide bar (8,9) carries piezoelectric bending transducers (14,15) to which are attached guides (11,12). A control arrangement (16) comprises a computer (17,19,20) and a potential generator, which provide the control potential via control lines (25) to the bending transducers. The potential source provided to a guide bar (8,9) comprises a plurality of serial to parallel converters (23) whose data and command inputs (22) are connected via a common data and command bus (21) with the computer and whose outputs (26) are connected with the bending transducers via the control lines (25). The serial to parallel converters (23) take up the data sequentially and upon occurrence of the switching command transmit them simultaneously in the form of control potentials. In this way rapidly running and/or large warp knitting machines can be provided with a operative piezoelectric jacquard control.Type: GrantFiled: November 7, 1995Date of Patent: September 10, 1996Assignee: Karl Mayer Textilmachinenfabrik GmbHInventors: Hans-Jurgen Hohne, Kresimir Mista
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Patent number: 5520023Abstract: A warp knitting machine has a machine base (10), a main shaft (12) and knitting tool bars (13 to 17). Placed on the machine base is at least one gear box (18), having at least one side wall (24, 41), which is pierced by a bearing (25). A gear mechanism (27; 43) interacts on an inner portion of a shaft segment (24; 41). The outer portion of this shaft segment is drivably connected with a carrier arm (19; 37) for tool bars (13, 14, 15). In this manner, one obtains a very compact construction which inhibits oil leakage and substantially reduces noise emission while also offering the possibility of reducing the force necessary to operate the bars.Type: GrantFiled: January 6, 1995Date of Patent: May 28, 1996Assignee: Karl Mayer Textilmaschinenfabrik GmbHInventor: Rainer Kemper
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Patent number: 5515701Abstract: The invention relates to a method and to an apparatus for the production of multi-colored, Jacquard-patterned knitted pile fabrics, the patterning pile yarns being attached to the foundation texture preferably in filling construction and the non-patterning pile-yarns being held predominantly stretched at the foundation texture and, during the knitting process, the group of pile yarns being moveable in closed channels of a guide comb in the traverse and racking direction and the selected patterning pile yarns, guided by means of a pile yarn guide, forming a shed with the non-patterning pile yarns and being supplied by the guide comb in a first course to the reacher-in for accurate racking for the underlapping, the patterning pile yarn, in the second or return course after renewed racking, also being underlapped, tied in and returned in the channel of the guide comb to the dead pile strand and, after the selection of a new patterning pile yarn, the process with the shed formation by the new patterning pile yarnType: GrantFiled: September 9, 1994Date of Patent: May 14, 1996Assignee: Kaendler Maschinenbau GmbHInventor: Frank Schubert
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Patent number: 5491988Abstract: In a warp-knitting machine with jacquard control, guide needles (1) are fastened to a guide bar (6) by means of carrier strips (3) which are bendable by at least one piezoelectric bending transducer. Each carrier strip (3) consists of electrically insulating material. The strip carries on at least one side, a layering consisting of (a) an inner electrode (8 to 11), (b) a piezoelectrically active layer (15, 17) covering the latter and (c) an outer electrode (16, 18). A control circuit (29) selectively supplies the inner electrode (8 to 11) with control voltage, while the outer electrode (16, 18) is connected to a reference potential. A contact-protected Jacquard control operated piezoelectrically is obtained in this way.Type: GrantFiled: October 31, 1994Date of Patent: February 20, 1996Assignee: Karl Mayer Textilmaschinenfabrik GmbHInventors: Hans-Jurgen Hohne, Kresimir Mista
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Patent number: 5473913Abstract: A warp knitting machine having a main shaft has at least one bar mounted to reciprocate in accordance with a predetermined schedule. The machine also has an electrically activated drive arrangement with a body made of a material that can alter at least one of its dimensions in dependence upon the magnitude of an applied field. The machine also has a control arrangement coupled to the drive arrangement for providing an electrical signal thereto, in accordance with the predetermined schedule and in dependence upon the angular displacement of the main shaft. This electrical signal can establish the applied field with a predetermined timing within each displacement step of the one bar.Type: GrantFiled: March 28, 1995Date of Patent: December 12, 1995Assignee: Karl Mayer Textilmaschinenfabrik GmbHInventor: Bogdan Bogucki-Land
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Patent number: 5442936Abstract: A device for clamping and guiding crocheting needles for a crocheting machine. On the one hand a clamping device for the crocheting needles and on the other hand a knock-over comb are to be created, which permit a very fine spacing. To this end, in the bottom part (27) and in the clamping cover (29) of a clamping device (12), opposite, straight needle beds (73, 74) are arranged closely together. The needle beds (73, 74) have wall surfaces that are inclined in a V-shape. A knock-over comb (20, 80) fixed to the machine has upwardly projecting teeth (86) for the crocheting needles. The spacing of the needle beds and guide elements is at least 12, in particular 14 per centimeter of machine width. The holding bar (23) fixed to the machine and the bottom part (27) of the clamping device (12) have recesses, in particular chambers (77, 76) that face one another, which permit the clamping device to move too close to the teeth (86).Type: GrantFiled: March 23, 1994Date of Patent: August 22, 1995Assignee: Berger GmbHInventors: Johann Berger, Fritz Schulein
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Patent number: 5440902Abstract: A warp knitted fabric is formed with pile. The ground fabric is formed by a first ground lap with threads (11) forming stitches (18) with a separation of n wales (19), and a second ground lap with threads laid-in and running in the same direction. The pile is formed by a pile lap, in which each thread (12) forms stitches (18) with a separation of m wales (19). Herein, n is at least 1 and m is at least 0. In a process for the preparation of warp knitted fabric, the lay-in is so provided that the successive turn-around points of the lapping movement has a separation of approximately n+1 needle spaces. A warp knitting machine comprises a first ground guide bar (L2), a second ground guide bar (L1), a pile guide bar (L3) and a pile sinker bar (PB) with the appropriate displacement control arrangements (14 through 17) which operate in the manner of the foregoing displacement movements.Type: GrantFiled: April 19, 1994Date of Patent: August 15, 1995Assignee: Karl Mayer Textilmachinenfabrik GmbHInventors: Jakob Wieland, Herman Kraner
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Patent number: 5390513Abstract: Warp knitting machine with a guide bar executing an oscillation movement and a base shift movement. Single thread guides are mounted thereon and are individually movable in a to- and fro- motion in the shift direction and are combineable into one or more groups and are group-wise adjustable by electrically controlled control motors under the influence of a program control having a pattern shift movement stored therein. Each of the control motors is connected to the thread guides of at least one group by a pull control cable held under tension which extends over the length of the guide bar and is further connected to the thread guides such that all thread guides of any one group execute the same pattern shift movement. The control motors are structurally supported independent from the guide bar. The pull control cables are guided from the guide bar at right angles and then deflected toward said motors.Type: GrantFiled: February 10, 1994Date of Patent: February 21, 1995Assignee: LIBA Maschinenfabrik GmbHInventors: Adolf Hagel, Jurgen Lammerhirt
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Patent number: 5331828Abstract: A warp knitted fabric has threads of a ground thread system forming a fabric ground. A pattern thread system also forms different patterned areas both in the weft direction as well as in the warp direction. In a basis area there is provided either cloth lapping (1-0/2-3-1 or 0-1/3-2-1). In the patterned area, a sequence is built by different lappings selected from a group consisting of pillar, tricot, cloth, satin and velvet stitches, in which the average length of the underlaps in predetermined pattern repeats is substantially similar to the underlap length of the cloth lapping. This gives rise to numerous new patterning possibilities, in particular for a jersey fabric. In addition to a described process, a warp knitting machine is provided for making such warp knitted goods.Type: GrantFiled: October 21, 1993Date of Patent: July 26, 1994Assignee: Karl Mayer Textilmaschinenfabrik GmbHInventors: Joachim Weis, Gerhard Bergmann
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Patent number: 5295372Abstract: In a warp knitting machine at least one swingable guide bar is driven in a shogging direction. This displacement is achieved through a drive member via a hinged push rod in dependence upon a path time function. This path time function is formed by overlapping a ground function with a compensation function. The ground function is the targeted displacement movement of the guide bar for proper lapping. The compensation function compensates for an axial mislap and possible collision during the swing-through of the guide bar. The compensation occurs at least during that segment corresponding to the passage of the guides through the needle gaps. Preferably however, compensation occurs over the entire ground function. This compensation substantially reduces the danger of collision between the guides and the needles.Type: GrantFiled: August 13, 1992Date of Patent: March 22, 1994Assignee: Karl Mayer Textilmaschinenfabrik GmbHInventors: Rainer Kemper, Karl Winter
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Patent number: 5284034Abstract: A warp knitted fabric has threads of a ground thread system forming a fabric ground. A pattern thread system also forms different patterned areas both in the weft direction as well as in the warp direction. In a basis area there is provided either cloth lapping (1-0/2-3-1 or 0-1 /3-2-1). In the patterned area, a sequence is built by different lappings selected from a group consisting of pillar, tricot, cloth, satin and velvet stitches, in which the average length of the underlaps in predetermined pattern repeats is substantially similar to the underlap length of the cloth lapping. This gives rise to numerous new patterning possibilities, in particular for a Jersey fabric. In addition to a described process, a warp knitting machine is provided for making such warp knitted goods.Type: GrantFiled: November 18, 1992Date of Patent: February 8, 1994Assignee: Karl Mayer Textilmaschinenfabrik GmbHInventors: Joachim Weis, Gerhard Bergmann
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Patent number: 5241842Abstract: A warp knitting machine comprising at least one guide bar on which individual yarn guides are arranged for individual reciprocating movement in the racking direction, the yarn guides being combined to one or several groups and moved in groups by a common pattern drive. The pattern drives are designed as servomotors which are electrically controlled by a program control and supported independently of the guide bar, and which are connected with the yarn guides via traction control cables maintained under tension.Type: GrantFiled: April 22, 1992Date of Patent: September 7, 1993Assignee: LIBA Maschinenfabrik GmbHInventor: Adolf Hagel
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Patent number: 5201199Abstract: Warp knitting machine comprising at least one guide bar axially displaceable by a pattern drive and a return spring acting thereon. At least two separate springs acting in combination upon the guide bar, have different resonant frequencies. Furthermore, they have independently adjustable, effective spring forces. By this means, it is possible to obtain a higher rate of revolution for the warp knitting machine then was heretofore possible.Type: GrantFiled: September 1, 1992Date of Patent: April 13, 1993Assignee: Karl Mayer Textilmaschinenfabrik GmbHInventor: Rainer Kemper
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Patent number: 5150587Abstract: A warp knitting machine for making pile ware having at least two guide bars carrying guides (L1, L2, L3) and a pile sinker bar (5) carrying pile sinkers displaceable in the longitudinal direction. The guides lay the threads forming the ground ware without crossing over the pile sinkers and lay the threads forming the pile loops by crossing over the pile sinkers. At least one guide bar (L1, L2) is equipped as a jacquard guide bar. The displacement of this guide bar, is so chosen that, in dependence upon the jacquard controls (9), the guides (6,7) can lay either a ground ware (15) or pile loops (14).Type: GrantFiled: January 8, 1991Date of Patent: September 29, 1992Assignee: Karl Mayer Textilmaschinenfabrik GmbHInventor: Gerhard Bergmann
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Patent number: 4989423Abstract: Warp knitting machine with guide bars adjusted according to a pattern by means of displacement stepping motors, which receive their displacement information in the form of a certain number of displacement pulses from a pattern memory of a control device.For determining and correcting the guide bar position of a warp knitting machine shut down in underlay position, the indicator of an electrical proximity switch is connected with each guide bar, whose sensor is mounted on a measurement slider shiftable in the displacement direction of the guide bar, said slider being shiftable by means of a measurement stepping motor over the displacement range of the indicator beginning from a start position, which corresponds to the zero-position of the guide bar.Type: GrantFiled: July 21, 1989Date of Patent: February 5, 1991Assignee: Liba Maschinenfabrik GmbHInventor: Helmut Schafer
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Patent number: 4986091Abstract: There is disclosed a process for the manufacture of pile ware on warp knitting machine. The machine has a single needle bar and pile sinkers. The base threads and the pile threads are contemporaneously laid about the needles. During the swing associated with the underlap into the overlap position, first the base threads and then the pile threads are laid onto the needle backs and slid off from said needle backs with separation from each other. The pile sinkers are led into the space between the base and pile threads during the swing-through and remain there until the knock-over of the stitch. There is further provided an apparatus for carrying out the above process by means of a warp knitting machine for the production of pile ware. The machine has a needle bar, laterally displaceable bars for base and pile threads and a laterally non-displaceable pile sinker bar carrying a pile sinker interacting with each needle gap.Type: GrantFiled: August 7, 1989Date of Patent: January 22, 1991Assignee: Karl Mayer TextilmaschinenfabrikInventor: Horst Jager
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Patent number: 4841750Abstract: The control member herein described comprises an electromagnet 30 which is fixed with respect to a thread guide rail and acts on a swinging arm 37 l pivoted with respect to the electromagnet itself and slidably engaging a lifter 14. Due to the energization of the electromagnet 30 the swinging arm 37, is brought, against the action of a return spring 39, from a rest position in which the lifter is disposed in a disengagement condition, to a working position in which the lifter is in an engagement condition and is engaged by actuator means oscillating in synchronism with the thread guide rail in order to cause the actuation of a threading tube associated with said lifter.Type: GrantFiled: July 22, 1988Date of Patent: June 27, 1989Assignee: Comez, S.P.A.Inventor: Luigi O. Zorini
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Patent number: 4761973Abstract: The guide bars of a warp knitting/crochet warp knitting as well as the plurality of needles associated with such machines are automatically fully controlled for each full reciprocal movement in the knitting cycle of said machines. The pattern bars, yarn guides and needles are all moved in synchronism with each other and the rotation of the main machine drive to generate various desired patterns through a programmable memory with the capacity to store all the information required to position all the pattern governing parts in a series of juxtapositions which produce the desired patterns in the cloth fabricated by said machine. Said programmable memory means is integrated with a signal processing means generating signals which control the rotation of Servo-Motors; direction of the rotation of said Servo-Motors; rate of rotation of said Servo-Motors; and duration of each said series of rotations.Type: GrantFiled: May 8, 1987Date of Patent: August 9, 1988Inventor: Richard Gangi
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Patent number: 4628711Abstract: In a warp knitting machine, warp stitch rows are formed from warp threads which are held together at least by a weft thread. Patterned threads are applied to the warp rows and are fed in a manner similar to the warp threads. For this purpose, a warp thread guide (18) and pattern thread guides (24) are positioned in front of the knitting needles and are moved over the knitting needles. At the sections of the knitting which are to receive a pattern, the pattern threads are applied on top of the warp threads resting in the needles and are knitted together. At the locations where no pattern is desired, controlled thread retainers prevent the insertion or threading of the pattern threads into the knitting needles and hence the knitting of the pattern threads in with the warp threads does not take place. At the pattern-free locations, the pattern threads are simply inserted into the warp stitch rows.Type: GrantFiled: December 19, 1985Date of Patent: December 16, 1986Assignee: Textilma AGInventor: Francisco Speich
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Patent number: 4615189Abstract: Longitudinal weft guides, as well as other weft guides and/or thread guides are placed relative to the hook needles and to the corresponding thread guides in a knitting machine. In order to simply to drive thereof, the drive devices for the bars (22,24) of the longitudinal weft guides as well as the drive device for the bar (32) of the thread guides are arranged together on one side of the machine frame and are combined. To this end, a common drive shaft is provided for oscillating levers of the drive to the longitudinal weft guides and another oscillating lever for the thread guides.Type: GrantFiled: June 5, 1985Date of Patent: October 7, 1986Assignee: Textilma AGInventor: Gerard Durville
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Patent number: 4615186Abstract: Cam gear for textile machines, especially for pattern controlling of warp-knitting (chain stitching) machines. Generally, the development concerns a cam gear for textile machines having cams. The present configuration avoids the interferences, caused by oscillations, in the cam gears of textile machines. One advantage is that the occurring oscillations are influenced, and resonance phenomena are avoided, within the practical range of the normal rotation speed of textile machines.Type: GrantFiled: June 26, 1984Date of Patent: October 7, 1986Assignee: VEB Kombinat TextimaInventors: Jurgen Rossler, Hans Dresig, Manfred Hertzsch, Gunther Forster, Franz-Christian Eckelmann
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Patent number: 4570462Abstract: A warp knitting machine has a plurality of needles and a Jacquard guide bar having at least one pair of stopping surfaces. The machine also has a plurality of Jacquard-controlled guides each having a displaceable forward end and each having a rearward end attached to the Jacquard guide bar. The pair of stopping surfaces spaced and positioned to straddle a given one of the Jacquard-controlled guides. The machine also has at least one displacement member for reciprocating the given one of the Jacquard-controlled guides against the pair of stopping surfaces a distance of about one neddle space. The stopping surfaces straddle the given one of the Jacquard-controlled guide at a position between its forward end and its point of contact with the displacement member.Type: GrantFiled: June 8, 1984Date of Patent: February 18, 1986Assignee: Karl Mayer Textilmaschinenfabrik GmbHInventor: Josef Roth
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Patent number: 4553412Abstract: A flat bed knitting machine having a high speed secondary stitch adjustment. A secondary guide bar mounts a secondary guide and is connected by connection means to a main guide bar mounting a plurality of main guides wherein the two guide bars may swing together and wherein they may shog independently of one another.Type: GrantFiled: February 7, 1984Date of Patent: November 19, 1985Assignee: Stedman CorporationInventor: Carl J. Odham