Patents Assigned to Groz-Beckert AG
  • Patent number: 7264022
    Abstract: A shaft rod (2) having, particularly in its mid region, a particularly low mass. The shaft rod has an upper ledge (11) and a lower ledge (12) which have a reduced thickness in the mid region of the shaft rod. As a result, the load induced by acceleration forces is significantly less in the mid region than in conventional constructions. By virtue of the reduced acceleration forces, the extent of bending of the shaft rods in the middle is less and therefore a shaft rod of such a structure is better adapted for use in very rapidly operating weaving machines.
    Type: Grant
    Filed: November 17, 2005
    Date of Patent: September 4, 2007
    Assignee: Groz-Beckert AG
    Inventor: Franz Mettler
  • Patent number: 7117694
    Abstract: A knitting tool (1) is provided with a braking spring (15) formed on the knitting tool as a one-piece member thereof. The braking spring has a thickness (W) which is less than that of the knitting tool (1), whereby the braking spring (15) may yield to a great extent and has a soft spring characteristic. Such a result may be achieved even with short spring lengths, whereby dimensional deviations of the spring have only a slight effect on the spring force. The structure is only slightly prone to soiling. The knitting tool may be manufactured in a simple manner.
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: October 10, 2006
    Assignee: Groz-Beckert AG
    Inventors: Jochen Braun, Uwe Hennig
  • Patent number: 6574995
    Abstract: The improved latch needle (1) is provided with a latch (5) having a latch shaft (11) with side surfaces (21, 22), which are divided into surface areas (23, 24) that are offset against each other and/or are arranged at an angle to each other. As a result, the thickness of latch (5) measured in the direction of its rotational axis (27) is slightly larger than the thickness in the shaft region (43), particularly at a location (45) in the area of transition from the latch shaft (11) to the latch spoon (16). On the other hand, the location (43) is close to the hook-side opening of the latch slot (6). By reducing the width, particularly in this region, the easy movement of latch (5) is ensured even if dust or dirt enter the latch slot (6) or are deposited on the side surfaces (21, 22).
    Type: Grant
    Filed: April 1, 2002
    Date of Patent: June 10, 2003
    Assignee: Groz-Beckert AG
    Inventors: Manfred Sauter, Karl-Heinz Mattes
  • Patent number: 6233977
    Abstract: A compound needle includes a shank having an end; a hook formed on the shank at the shank end and having a hook tip; and a closing element slot provided in the shank and being defined by two parallel shank flanks. The closing element slot extends from a location adjacent the hook in a direction away therefrom. The compound needle further has an elongated closing element received in the closing element slot for longitudinal sliding motions therein. The closing element has a hook-closing position in which the closing element is situated in an immediate vicinity of the hook tip. The closing element is composed of at least two side-by-side disposed, resilient closing element parts each having a free terminal leg oriented toward the hook. The terminal legs are bent away from one another to define a relatively narrow funnel having an open end oriented toward the hook and a beginning spaced from the open funnel end.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: May 22, 2001
    Assignee: Groz-Beckert AG
    Inventors: Bernhard Schuler, Klaus Ruoff
  • Patent number: 5956976
    Abstract: A latch needle for loop-forming textile machines includes a needle shank having an upper side, a back and a sawslot extending into the needle shank from the upper side and oriented parallel to the shank. A hook is provided at an end of the needle shank. A spring element is disposed in the sawslot and has at least one end supported by the needle shank. A needle latch is supported in the sawslot for pivotal motion about an axis between a closed position in which the needle latch engages, with a frontal end thereof, the hook and a rearward position. The needle latch has a latch shank which includes an upper side and a lower side. In the rearward position the needle latch lies, with the upper side of the latch shank, on the upper side of the needle shank or is situated in the vicinity of the upper side of the needle shank. The latch shank further has an end part formed as a cam engaged by the spring element.
    Type: Grant
    Filed: March 23, 1998
    Date of Patent: September 28, 1999
    Assignee: Groz-Beckert AG
    Inventors: Oskar Schaffer, Wolfgang Schmoll, Kurt Wiedenhofer, Bernhard Schuler