Patents Assigned to Groz-Beckert KG
  • Heddle with reduced play
    Patent number: 7204274
    Abstract: A heddle (14) of the invention is distinguished by end eyelets (15, 16) of reduced size, with which heddle support rails (6, 7) of reduced cross section are associated. The axial play of the heddles on the heddle support rails (6, 7) is limited to from 0.5 mm to 1.5 mm. The lateral play is in the range of 0.2 mm to 0.5 mm. This system formed of heddle support rails and heddles is especially suitable for particularly rigid heddle shafts for power looms with an extremely high operating speed.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: April 17, 2007
    Assignee: Groz-Beckert KG
    Inventor: Franz Mettler
  • Shaft rod and heald shaft
    Publication number: 20070062596
    Abstract: The shaft rod (2) according to the invention has, at one of its narrow sides, at least one recess (21) which is later provided in the shaft rod and in which a reinforcing element (24) is glued. The material externally of the shaft rod forms securing zones (32, 33) which serve for the attachment of additional elements. The recesses are preferably applied in such a manner that hollow spaces free from Eloxal coating are exposed which may be utilized as recesses into which reinforcing elements are glued.
    Type: Application
    Filed: September 18, 2006
    Publication date: March 22, 2007
    Applicant: Groz-Beckert KG
    Inventor: Franz Mettler
  • Latch needle
    Patent number: 7191620
    Abstract: The starting point of a new concept in a latch needle (1) is an attachment of the latch spring (22) in the sawslot (9) of the latch needle from the side of the needle back (7). For this purpose the latch needle (1) has spring-supporting pockets (19, 21) accessible from the needle back (7) or other structures adapted to receive the ends (25, 26) of the latch spring (22). The spring-supporting pockets (19, 21) are closed toward the needle back (7) at least to such an extent that the ends (25, 26) of the latch spring (22) are held in a form-locking, or at least in a captive manner in the spring-supporting pockets (19, 21). Such a latch needle has a reduced tolerance sensitivity during manufacture. The described needle concept makes possible further improvements which contribute to the operational safety and service life of the latch needle.
    Type: Grant
    Filed: October 5, 2005
    Date of Patent: March 20, 2007
    Assignee: Groz-Beckert KG
    Inventors: Eric Jürgens, Andreas Dietz, Wolfgang Schmoll
  • Heald, particularly for rapidly running weaving machines
    Publication number: 20070028985
    Abstract: An improved heald consists of a flat material, such as tempered steel. It has closed (O-shaped) end eyelets (5, 6) which are one-piece parts of the heald body (4). An edge (10) which extends along the full length of the heald (1), is of entirely straight configuration. In contrast, the oppositely-located edge (11) consists of offset straight portions. A particularity of the heald according to the invention resides in the fact that the openings (15, 16) provided in the end eyelets (5, 6) for receiving the shaft staves are eccentrically arranged, whereby the two webs (17, 18) bordering the openings (15, 16) have unlike widths. With a reduced material input and weight a heald is obtained which, as concerns stability and possibility of utilization in existing weaving systems is at least equivalent to conventional healds.
    Type: Application
    Filed: July 13, 2006
    Publication date: February 8, 2007
    Applicant: Groz-Beckert KG
    Inventor: Oliver Mathews
  • Package for felting needles
    Publication number: 20070023308
    Abstract: A wedge-shaped receptacle (9) is provided for packaging felting needles (8). The wedge shape is configured in such a manner that the felting needles lie in the receptacle in a mutual lateral engagement, that is, they are held approximately parallel to one another and they firmly clamp one another without their tips abutting against the receptacle body. This, on the one hand, results in a particular protection of the felting needles (8) during transportation and, on the other hand, results in a simple handling with the lowest danger of injuries.
    Type: Application
    Filed: July 28, 2006
    Publication date: February 1, 2007
    Applicant: Groz-Beckert KG
    Inventors: Gustav Wizemann, Rene Conzelmann
  • Heald shaft
    Publication number: 20070006930
    Abstract: The heald shaft (1) according to the invention has, for coupling the shaft rods (2) with the end binders (5), connecting joints (10) whose pivot axes (14) lie externally of the shaft rods (2) and preferably inside the end binders (5). By means of the connecting joints (10) a moment-free coupling between the shaft rods (2) and the end binders (5) is ensured. The relative pivotal motions between the shaft rods (2) and the end binders (5) appearing during operation do not generate any moment transmissions between the shaft rods (2) and the end binders (5). According to a preferred embodiment, the driving couplers (7) are arranged above the end binders (5) in a direct extension thereof.
    Type: Application
    Filed: June 26, 2006
    Publication date: January 11, 2007
    Applicant: Groz-Beckert KG
    Inventors: Stefan Drope, Johannes Bruske, Karl-Heinz Gesing
  • End binder for a heald shaft
    Publication number: 20070006931
    Abstract: An end binder (5) for a heald shaft (1) is formed by a bent sheet metal member (9) which preferably has a U-shaped cross section and which, according to the preferred embodiment, is of high-grade steel. The open side of the U-section faces the shaft rods (2, 3). In the hollow space enclosed by the bent sheet metal member (9) shaft rod couplers (28) are secured which are preferably pivotally held The upper or lower end of the bent sheet metal member forms part of a driving coupler (25) which is situated preferably in a linear continuation of the bent sheet metal member (9) and is a one-piece component with the end binder (5). Such a structure may be is manufactured in a simple manner with very small tolerances, and it has a low weight, a substantial stiffness and highly satisfactory bearing properties for being supported in plastic guides.
    Type: Application
    Filed: June 26, 2006
    Publication date: January 11, 2007
    Applicant: Groz-Beckert KG
    Inventors: Johannes Bruske, Stefan Drope, Karl-Heinz Gesing, Stefan Danner
  • Heald shaft having a self-tightening lock
    Publication number: 20070009319
    Abstract: In the heald shaft (1) according to the invention, a coupling device (8) is provided which serves for connecting the end binder (4) with the shaft rod (3) and which has a spring-biased clamping member (18) for frictionally holding a coupling element (20) in the shaft rod (3). When required, the clamping member (18) may be moved into its releasing position against the force of the spring element (30) for releasing the coupling element (20), so that the latter may be pulled out of the shaft rod (3) alone, or possibly together with other components of the coupling device (8). Operating such a coupling device is particularly simple and requires neither particular skill nor particular attention. The coupling device (8) is adapted for shaft rods of lightweight construction.
    Type: Application
    Filed: June 26, 2006
    Publication date: January 11, 2007
    Applicant: Groz-Beckert KG
    Inventors: Stefan Drope, Johannes Bruske, Karl-Heinz Gesing
  • Yarn-protecting heald
    Publication number: 20070000552
    Abstract: The heald according to the invention has a heald body (8), whose thickness-increases toward the yarn eyelet (6). The lateral surfaces of the heald body (8) constitute guiding surfaces which are oriented in the warp yarn direction and which, adjacent the yarn eyelet (6), serve as spacer means (35, 36) for holding at a distance adjoining yarn eyelets (6) of adjoining healds.
    Type: Application
    Filed: June 30, 2006
    Publication date: January 4, 2007
    Applicant: Groz-Beckert KG
    Inventors: Franz Mettler, Herbert Schwane
  • Latch needle for textile machines
    Publication number: 20060277949
    Abstract: 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: Application
    Filed: June 9, 2006
    Publication date: December 14, 2006
    Applicant: Groz-Beckert KG
    Inventors: Eckhard Fehrenbacher, Uwe Hennig
  • Shaft drive system for power loom shafts
    Patent number: 7140399
    Abstract: A novel shaft gear for harmonious engagement and disengagement of individual heddle shafts and for deriving their motion from the rotary motion of a single input shaft has a coupling system with two input elements. While one of the input elements serves to drive the output element of the coupling system permanently, the other input element serves solely to synchronize the output element briefly with the first input element. The switchover takes place in the brief synchronous phases, in selected angular regions that correspond to the top or bottom reversal point of the heddle shaft. For the switchover, such novel shaft drive mechanisms do not require any stoppage of motion for the input shaft or the shaft drive mechanism.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: November 28, 2006
    Assignee: Groz-Beckert KG
    Inventors: Johannes Bruske, Bernhard Münster, Armin Fäller
  • Heddle shaft with center connector
    Patent number: 7137415
    Abstract: A heddle shaft (1) has shaft rods (2, 3), which are embodied as profile bodies (12) having at least one hollow chamber (14). The shaft rods (2, 3) are joined together by lateral bracing posts (4, 5) and at least one center connector (11). For securing the latter, retaining pieces (23) are disposed in the hollow chambers and are accessible through windows (22). The retaining pieces (23) are preferably glued into the hollow chamber (14) and have one or more threaded bores for securing the center connector (11) by means of screws (37).
    Type: Grant
    Filed: October 20, 2004
    Date of Patent: November 21, 2006
    Assignee: Groz-Beckert KG
    Inventors: Andre Olbing, Karl-Heinz Gesing
  • Heald shaft for a weaving machine
    Publication number: 20060249218
    Abstract: For a releasable attachment of shaft staves (8) to shaft rods (2) of a heald shaft (1) of a weaving machine, holding devices are provided which, for example, are composed of two sheet metal members, of which one part forms an adhesive surface for bonding to the shaft rod (2). The part that remains free serves for receiving respective metal reinforcing strips (rib (31, 32)) which may be riveted or welded to the sheet metal members. The reinforcing strips serve for receiving securing elements for a bracket and for positioning the latter. In this manner the positioning is effected in a form-fitting manner. The sheet metal members are tightened against the bracket preferably by bolts for firmly clamping the bracket in the position determined by the form-fit. In the alternative, rivets may also be used which, when required, may be released, for example, by pushing them out with simple tools.
    Type: Application
    Filed: April 29, 2004
    Publication date: November 9, 2006
    Applicant: GROZ-BECKERT KG
    Inventor: Franz Mettler
  • Cutting needle
    Publication number: 20060236726
    Abstract: The cutting needle (1) according to the invention is, for example, a latch needle and has a knife element (11) secured to the shank (2). The knife element (11) defines a cutting edge (18) which projects obliquely upward from the shank. The knife element (11) is arranged externally of the range of motion of the latch (4) and cuts open a loop situated on the shank when it is overdriven outward. The knife element (11) is made, for example, of a suitable spring steel and is held unremovably on the shank (2).
    Type: Application
    Filed: April 6, 2005
    Publication date: October 26, 2006
    Applicant: Groz-Beckert KG
    Inventors: Bob Hagens, Uwe Stingel, Eckhard Fehrenbacher
  • Punching tool with re-usable, neutral structural groups
    Patent number: 7121178
    Abstract: An improved punching tool (1) has a lower tool (3), which is subdivided into a lower tool base plate (7) and a lower-tool operative part (8). The lower tool base plate (7) has a receiving face, with which uniform base areas of a plurality of lower-tool operative parts (8) are associated. The dividing place between the lower-tool operative part (8) and the lower tool base plate (9) is disposed such that all the workpiece-specific designs are present exclusively on the lower-tool operative part (8), while the lower tool base plate (7) is the same, without change, for all workpieces to be machined.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: October 17, 2006
    Assignee: Groz-Beckert KG
    Inventors: Hans Joachim Halamoda, Siegfried Beerhalter, Ernst Heinemann
  • Needle for needling flat textile fabrics
    Patent number: 7114226
    Abstract: A needle (1) according to the invention serves for the after-treatment, particularly after-needling of flat textile products, particularly for roughening of the product surface. The needle (1) is of fully symmetrical construction with respect to the central longitudinal axis (11); this applies particularly also to its barbs. The needle gauge is at least 46 and the barb depth is 0.02 mm at the most. The needle ensures a gentle, protective operation and the making of particularly fine textiles.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: October 3, 2006
    Assignee: Groz-Beckert KG
    Inventor: Gustav Wizemann
  • Heald shaft of composite construction
    Patent number: 7114528
    Abstract: A heald shaft for weaving machine has a shaft rod (3) which is formed of a one-piece light-metal profile and two stiffening bodies (24, 25) glued to the shaft rod (3). The stiffening bodies bridge the entire width of the shaft rod (3), wherein the width is measured between the side walls (11, 12). The chambers 14, 16 for receiving the stiffening bodies (24, 25) each have at least one open side through which the stiffening body is visible from the outside and through which it may be introduced into the respective chamber (14, 16). This construction facilitates manufacture. Further, a rigidity in the working direction, as well as a good rigidity transversely thereto is achieved.
    Type: Grant
    Filed: October 20, 2004
    Date of Patent: October 3, 2006
    Assignee: Groz-Beckert KG
    Inventors: Thomas Schmid, Bernd Binder, Johannes Bruske
  • Needle for a loop-forming system
    Patent number: 7086253
    Abstract: A needle (1), in particular a machine knitting needle, for instance for use in circular knitting machines, has a closing member (4), which is supported both pivotably and longitudinally displaceably. The motion of the closing member is controlled externally by a control element (5). The needle (1) of the invention makes do with especially short working strokes, both for the needle (1) and for the control element (5). It is sturdy, and among other purposes it is suitable for especially fine pitches and for higher number of systems in circular knitting machines.
    Type: Grant
    Filed: July 19, 2005
    Date of Patent: August 8, 2006
    Assignee: Groz-Beckert KG
    Inventors: Roland Simmendinger, Kurt Wiedenhöfer, Manfred Sauter
  • Latch needle
    Publication number: 20060144459
    Abstract: A new shaft drive provides for a switch-on and switch-off of individual heald shafts even at high working speeds. For this purpose switching pawls are provided which couple an eccentric with permanently revolving and/or back-and-forth oscillating disks. Measures for improving the controllability of such a clutch device are the control of the switching pawls by slot guides, associating bi-stabile biasing devices with the switching pawls and/or dividing the switching function into individual switching pawls (27a, 27b) which are associated individually with differently running disks (21, 22). Preferably, one of the two disks executes a continuous rotary motion, while the respective other disk performs only an oscillating motion which determines the heald shaft motion during the resting phases thereof.
    Type: Application
    Filed: March 6, 2006
    Publication date: July 6, 2006
    Applicant: Groz-Beckert KG
    Inventors: Johannes Bruske, Bernhard Munster, Armin Faller
  • Heddle shaft rod, method for producing it, and heddle shaft
    Patent number: 7069959
    Abstract: A heddle shaft is formed of a hollow metal profile section into which an expanding element for vibration damping is inserted. The expanding element is for example a precompressed foam strip which expands after insertion into the internal chamber of the hollow metal profile section until it is seated with a certain initial tension between the side walls of the hollow metal profile section. It is embodied as a solid (non-liquid) body and is introduced as such into the internal chamber. For being locked in place, it can be provided with adhesive faces.
    Type: Grant
    Filed: June 7, 2004
    Date of Patent: July 4, 2006
    Assignee: Groz-Beckert KG
    Inventors: Reiner Manthey, Rudolf Rossing