Patents Assigned to Groz-Beckert KG
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Publication number: 20070221110Abstract: A needle holder (7) is provided, in particular, for industrial sewing machines, in which sewing machine needles having different needle gauges and preferably different cylindrical shanks or shafts are supported or held in such a manner that they can be adjusted in a transverse direction. This permits an adjustment of the relative position between the sewing needle (4) and the gripper (6), without requiring an adjustment of the gripper position and/or the needle guard position.Type: ApplicationFiled: March 22, 2007Publication date: September 27, 2007Applicant: Groz-Beckert KGInventors: Bernd Hillenbrand, Bernd Binder
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Patent number: 7272958Abstract: A novel latch needle has a sawslot (11) which is provided with facets or surfaces (22, 25) both at its frontal and its rearward end surfaces (18, 19). The surfaces (22, 25) are preferably parallel to one another and are oriented perpendicularly to the direction of length (L) of the shank. By virtue of this arrangement the surfaces are so oriented that the latch (6), as it opens or closes, pushes any dirt past the respective surfaces through the sawslot (11) and thus an accumulation and compacting of dirt cushions on the noted surfaces is avoided. Generally stated, the sawslot (11), particularly in the region of its end surfaces (18, 19) is thus void of any surface regions which represent an obstacle to the opening or closing latch (6).Type: GrantFiled: June 9, 2006Date of Patent: September 25, 2007Assignee: Groz-Beckert KGInventors: Eckhard Fehrenbacher, Uwe Hennig
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Patent number: 7266978Abstract: A knitting tool which is suitable for embodying both large and small loops has two needles (6, 7), disposed coaxially to one another, whose hooks are oriented identically. The hook of the larger needle (6) is split in two in the middle and comprises hook halves. The finer needle (7) can be driven between the two hook halves upon spreading of the two hook halves apart from one another. For selectively closing the hooks, a slide is provided, which can be brought into engagement both with the tip of the fine needle and with the tip of the coarser needle. To raise and lower the slide to the various positions of the hook tips relative to the needle back, a sliding control block may be provided. The sliding control block may be embodied on the coarse needle and the fine needle (7).Type: GrantFiled: September 21, 2006Date of Patent: September 11, 2007Assignee: Groz-Beckert KGInventors: Uwe Stingel, Eric Jürgens
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Publication number: 20070199489Abstract: A gripper device in accordance with the invention comprises a gripper (3) and a counter knife element (4) that are fabricated separately and joined. As a result of this, optimal material combinations are possible, which will deal with both types of wear, namely between the gripper (3) and the tufting needle (5), on the one hand, and between the knife (6) and the counter knife element (4), on the other hand. The gripper module (1) accommodates the counter knife element (4), which, in turn, supports the gripper (3). The two parts may be joined by caulking, cementing, riveting, screwing or similar measures, or they may be cast together in the gripper module (1). The cutting of the loop is done exclusively between the counter knife element (4) and the knife (6).Type: ApplicationFiled: February 23, 2007Publication date: August 30, 2007Applicant: Groz-Beckert KGInventors: Bernd Hillenbrand, Hans Moser, Andrea Maute, Roland Waschle, Timo Kaas
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Publication number: 20070200286Abstract: The inventive gripper device for a tufting machine comprises a gripper device (10). The gripper device contains a gripper (11) and a guide member (12) that has a cutting edge. The gripper (11) has two gripper sections that are at a distance from each other in the direction of movement and are preferably separated from each other by a step (33) and/or by an extension (34), said gripper sections being configured as gripper edges that are parallel to each other, but spaced apart and offset with respect to each other in view of the pile height direction. The reversal between cut pile operating mode and looped pile operating mode takes place by means of the longitudinal adjustment of the gripper (11).Type: ApplicationFiled: February 23, 2007Publication date: August 30, 2007Applicant: Groz-Beckert KGInventors: Bernd Hillenbrand, Hans Werner Moser, Andrea Maute, Roland Waschle, Timo Kaas
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Publication number: 20070193487Abstract: A novel tufting needle (4) is distinguished by a hollow flute (15) which is preferably symmetrical to a central plane (29) and which is bilaterally provided with chamfers (33, 34). The chamfers (33, 34) are, in an inward-located, that is, in a region lying close to the central plane (29), inclined at a small acute angle (?) to a reference plane (28), while in a region bordering an externally located rim (edges (46, 47)), the chamfers (33, 34) are inclined at a larger acute angle (?) to the reference plane (28). This feature improves the rigidity, the tufting properties and the mechanical strength, as well as the wear resistance of the novel tufting needle (4).Type: ApplicationFiled: February 17, 2005Publication date: August 23, 2007Applicant: GROZ-BECKERT KGInventor: Bernd Hillenbrand
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Publication number: 20070180864Abstract: A take-off comb, in particular for a flat-bed knitting machine or a loop-forming machine, comprising a number of take-off elements that are held in a bed (19), with the bed consisting exclusively of bent sheet metal parts. The take-off elements (10) may comprise closing elements (15) that can be shifted by a closer ledge (35). The closer ledge (35) and, optionally, a slider (45) assigned to the ledge, are preferably also bent sheet metal parts. Consequently, the thusly configured take-off comb (7) can be manufactured in a cost-effective and precise manner.Type: ApplicationFiled: February 1, 2007Publication date: August 9, 2007Applicant: Groz-Beckert KGInventors: Stefan Danner, Gunther Buchle, Eckhard Fehrenbacher
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Publication number: 20070175244Abstract: A system component (1), such as, for example a knitting machine needle (2), intended for a loop-forming machine has in its foot (8) at least one cutout (14) that is set up to accommodate a section of a holder (17). This holder can be clipped into the cutout in order to hold several such system components in a pre-specified sequence and at a lateral distance and in alignment with respect to each other. The systems components, which are thus temporarily connected to each other, can be handled as a unit and, in this manner, can be removed from the bed (5), can be treated, for example be cleaned, and can be replaced in the same sequence and alignment in the bed (5).Type: ApplicationFiled: February 1, 2007Publication date: August 2, 2007Applicant: Groz-Beckert KGInventor: Uwe Stingel
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Publication number: 20070169518Abstract: The inventive knitting tools, in particular knitting needles (6), have a body (7) which, for alignment, has on its narrow side projections (15, 16) which have precisely machined abutment surfaces (18, 19) on their end faces. The abutment surfaces (18, 19), can be produced, for example, during a suitable stage of the manufacturing process. One of the projections (15, 16) or an additional projection (17) can be provided with abutment surfaces (20, 21) which are used for longitudinal positioning of the knitting tool. Corresponding grooves (25, 26, 27) in the needle bar (1) are assigned to the projections (15, 16, 17).Type: ApplicationFiled: January 22, 2007Publication date: July 26, 2007Applicant: Groz-Beckert KGInventors: Eric Jurgens, Torsten Butz, Klaus Kirchmair, Eckhard Fehrenbacher
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Patent number: 7246418Abstract: The felting needle according to the invention comprises a working part (12) with two partial sections (15, 16), each of which is preferably embodied with straight edges. The two partial sections are twisted slightly, relative to each other. Each partial section is provided with at least one ring of indentations with the indentations arranged offset to each other in axial direction. As a result, all notches are oriented uniformly in the direction of the longitudinal axis (14), despite the slight twisting of the section between the two partial sections (15, 16). The felting needle can thus be used to produce fleece materials and needle-punched felt materials, which have a nearly uniform tearing resistance in longitudinal as well as lateral direction.Type: GrantFiled: December 27, 2006Date of Patent: July 24, 2007Assignee: Groz-Beckert, KGInventors: Frank Falk, Jürgen Weith
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Publication number: 20070144603Abstract: The heddle according to the invention, provided in particular for band-shaped warp threads, comprises two bands (5, 6) that extend in vertical direction during use, are arranged at a distance parallel to each other and hold two thread support elements (16, 17) disposed between them. The thread support elements (16, 17) together with the respective flat segments of the bands (5, 6) between them jointly form a flat thread eyelet (18) that is oriented transverse to the warp thread and the longitudinal direction (7) of the heddle. The bands (5, 6) preferably extend with undiminished width up to the heddle support rails (2, 3) and are provided with end eyelets (10, 11, 12, 13) for positioning them on the support rails.Type: ApplicationFiled: December 8, 2006Publication date: June 28, 2007Applicant: Groz-Beckert KGInventors: Franz Mettler, Eckhard Fehrenbacher
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Publication number: 20070144220Abstract: A system component (1) for a knitting system is composed of a body (3) with butt (18), which projects outward from the narrow side (16) of the body (3). According to a first advantageous embodiment of the invention, the butt (18) is positioned inclined or at an angle to the body (3). A corresponding bending line extends in longitudinal or movement direction of the body (3). The angle (?) is thus defined in an imaginary plane (E) that intersects the body (3) in transverse direction. As a result of this measure, the butt (18) can also be adjusted relatively precisely at a right angle to the cam movement if the system component (1) along with it the body (3) is arranged somewhat inclined inside a corresponding guide slot (4) of a bed (5), wherein the angle a then compensates for the tilting. A line-type contact between the butt (18) and the guide track (7) is achieved, which reduces wear.Type: ApplicationFiled: December 21, 2006Publication date: June 28, 2007Applicant: Groz-Beckert KGInventors: Uwe Stingel, Eckhard Fehrenbacher, Manfred Sauter
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Publication number: 20070144219Abstract: An apparatus according to the invention for producing a knitted fabric with interspacing is embodied in the form of a circular knitting machine with knitting cylinders or with a knitting cylinder and a dial. Between the two needle beds for the needle assemblies defined in this way, a pile thread transfer device 4 is arranged, which is preferably provided with two groups 5, 6 of feed elements that can respectively be moved from an idle position to a thread tucking position. In the process, the feed elements of the one group move toward the needle hooks of the first needle bed and the feed elements of the other group move toward the needle hooks of the other needle bed. In this way, a spaced apart knitted fabric can be produced on circular knitting machines, wherein latch needles can be used and the needle stroke is limited to the standard measure of less than 14 mm. The knitted fabric with interspacing can have a thickness of clearly more than 14 mm, meaning a thickness than far exceeds the needle stroke.Type: ApplicationFiled: December 20, 2006Publication date: June 28, 2007Applicant: Groz-Beckert KGInventor: Eric Jurgens
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Publication number: 20070143975Abstract: The felting needle according to the invention comprises a working part (12) with two partial sections (15, 16), each of which is preferably embodied with straight edges. The two partial sections are twisted slightly, relative to each other. Each partial section is provided with at least one ring of indentations with the indentations arranged offset to each other in axial direction. As a result, all notches are oriented uniformly in the direction of the longitudinal axis (14), despite the slight twisting of the section between the two partial sections (15, 16). The felting needle can thus be used to produce fleece materials and needle-punched felt materials, which have a nearly uniform tearing resistance in longitudinal as well as lateral direction.Type: ApplicationFiled: December 27, 2006Publication date: June 28, 2007Applicant: Groz-Beckert KGInventors: Frank Falk, Jurgen Weith
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Publication number: 20070137719Abstract: The heddle shaft (1) according to the invention combines a traditional heddle machine (2) with an eccentric toothed gearing to purposely allow the heddle shaft (1) to dwell for longer periods of time in the upper and lower reversing region and to reduce any accelerations that occur. This permits an increase in the weaving speed and/or the weaving widths. For a particularly advantageous embodiment, a coupling device is additionally provided, which gives the heddle shaft (1) a pendulum movement with a stroke ranging from a few millimeters to centimeters during the idle phases, meaning when no sheds are formed. As a result of the pendulum movement of the heddle shaft (1) in the upper or lower reversing region, the acceleration loads on the heddle shaft (1) can be further reduced.Type: ApplicationFiled: December 15, 2006Publication date: June 21, 2007Applicant: Groz-Beckert KGInventor: Gerhard Pohl
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Patent number: 7231942Abstract: A shaft rod for a heddle shaft is formed by a profile body (15) and an associated additional profile body, which are joined together by a detent means (25) and additionally by an adhesive bond. The detent means (25) is embodied such that it already holds the additional profile body (19) fixed and in the correct position on the profile body (15) when the adhesive that forms the adhesive seam (33) is still liquid or viscous, or in any case has not yet thoroughly hardened. This provision makes it substantially easier to manipulate the shaft rod (4) during manufacture.Type: GrantFiled: September 17, 2004Date of Patent: June 19, 2007Assignee: Groz-Beckert KGInventor: Karl-Heinz Gesing
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Publication number: 20070130997Abstract: A knitting tool which is suitable for embodying both large and small loops has two needles (6, 7), disposed coaxially to one another, whose hooks are oriented identically. The hook of the larger needle (6) is split in two in the middle and comprises hook halves. The finer needle (7) can be driven between the two hook halves upon spreading of the two hook halves apart from one another. For selectively closing the hooks, a slide is provided, which can be brought into engagement both with the tip of the fine needle and with the tip of the coarser needle. To raise and lower the slide to the various positions of the hook tips relative to the needle back, a sliding control block may be provided. The sliding control block may be embodied on the coarse needle and the fine needle (7).Type: ApplicationFiled: September 21, 2006Publication date: June 14, 2007Applicant: Groz-Beckert KGInventors: Uwe Stingel, Eric Jurgens
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Publication number: 20070131301Abstract: A heddle (1) for flat, band-shaped warp threads (36) is provided with a thread eyelet (7), for which the width preferably exceeds the height. A thread eyelet (7) of this type prevents a deformation of the band-shaped warp thread (36), in particular a compressing on the sides during the shed formation. In addition, the heddle (1) according to the invention is preferably provided with thread guiding surfaces, which are longer than the thickness of the heddle (1) body (3), relative to the running direction of the warp thread. As a result of these measures, the wear on the heddle (1) as well as the warp thread (36) can be reduced.Type: ApplicationFiled: December 8, 2006Publication date: June 14, 2007Applicant: Groz-Beckert KGInventor: Franz Mettler
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Publication number: 20070125131Abstract: The knitting machine (1) according to the invention is provided with an air-conducting device (21) for conducting air into an air guidance space (18) that is embodied between the cam assembly (12) and the knitting cylinder (3). As a result of this air guidance space, cleaning air is supplied directly to the knitting tools (5), without requiring an outer casing around the cam assembly. In the same way, the air can also be guided between a dial and its associated cam assembly to corresponding dial needles or sinkers.Type: ApplicationFiled: November 29, 2006Publication date: June 7, 2007Applicant: Groz-Beckert KGInventor: Uwe Stingel
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Publication number: 20070084250Abstract: The machine knitting needle of the invention, beginning at its hook (3), between the hook (3) and its latch bearing (9), has a convex or at least not concave shank contour, which defines the inner hook contour and on one end (18) adjoins the concave inner hook contour directly. It is attained as a result that the elevation angle which a yarn (23), located in the hook (3), must overcome if it is to slide on the shank does not increase at any point along the inner contour (17). Preferably, it even decreases steadily. It thus has its maximum value inside a space which is defined on the one hand by the inner hook contour (15) and on the other by a plumb line (L) or (L1) which is dropped, from the hook tip (12) or its tapering portion (11), onto the needle back (16), or if the needle back is not oriented parallel to the direction of motion of the machine knitting needle, onto the arrow that defines the direction of motion.Type: ApplicationFiled: September 21, 2006Publication date: April 19, 2007Applicant: Groz-Beckert KGInventors: Johannes Bruske, Holger Cebulla