Darning Patents (Class 112/121)
  • Publication number: 20010039816
    Abstract: A method of sewing the toe of a sock is provided which can automatically take out a sock pattern of knitted fabric from a sock knitting machine and sew up the selvedge at the toe portion of the sock pattern of knitted fabric thus improving both the efficiency of production and the energy saving.
    Type: Application
    Filed: April 2, 2001
    Publication date: November 15, 2001
    Inventors: Toshifumi Fujiwara, Takeshi Nakahira, Takahiro Ueda, Yusuke Shibata
  • Patent number: 4815406
    Abstract: An electronic sewing machine storing information concerning a string of different stitch patterns includes a central processor responsive to an operator entered parameter for effecting unique modification of certain stored stitch patterns thus creating a compound stitch pattern useful, for instance, as a mending stitch pattern for repairing various length fabric tears.
    Type: Grant
    Filed: January 11, 1988
    Date of Patent: March 28, 1989
    Assignee: SSMC Inc.
    Inventors: John Brown, John W. Wurst
  • Patent number: 4570561
    Abstract: An electronically controlled sewing machine includes an electronic memory storing a plurality of stitch control data for respective stitch patterns, including a darning pattern composed of a number of vertical straight stitch lines sequentially produced in forward and reverse fabric feeding directions. A number of signals which are generated each time a fabric penetrating needle ascends above the fabric between the first stitch and the last stitch of each vertical straight stitch line of the darning pattern, are counted up by a counter to produce a corresponding value signal. The latter signal is compared with another value signal latched in a latch circuit in response to operation of a turning point designating switch adapted to designate a number of stitches for each vertical straight stitch line of the darning pattern. When the value signals coincide with each other, the count-up operation of the counter is reset for producing a subsequent vertical straight stitch line.
    Type: Grant
    Filed: April 20, 1984
    Date of Patent: February 18, 1986
    Assignee: Janome Sewing Machine Industry Co., Ltd.
    Inventors: Hachiro Makabe, Takeshi Kongoh
  • Patent number: 4557206
    Abstract: A sewing machine in which a frame which is moved by to-and-fro feed device is provided to be movable forwards and backwards along a guide mechanism provided to a base; an arm unit and a base unit of sewing machine body are provided to the frame in such a manner that the arm unit and the base unit are respectively supported and guided by a pair of horizontal upper and lower guide members, which are provided to the frame and disposed vertically, to be laterally movable, the arm unit having a head and the base unit having a rotating hook complete and being separated from the arm unit; the arm unit and the base unit are moved by a lateral feed mechanism laterally and synchronously with each other along the guide members; and a supporting bed for supporting an article to be sewed is disposed between the arm unit and the base unit of the sewing machine body so that the supporting bed passes between the guide members.
    Type: Grant
    Filed: September 30, 1983
    Date of Patent: December 10, 1985
    Assignee: Prince Mishin Kabushiki Kaisha
    Inventor: Hideo Iwase
  • Patent number: 4510876
    Abstract: A method of positioning two workpiece portions for stitching together along a desired stitching path.A pallet is provided for positioning workpiece components (e.g. a vamp V and quarter portions RQ, LQ of a shoe upper) in position for stitching the portions together, where, when the various components are in a flat condition, the regions (corresponding to the desired stitching paths) of the various components are not in overlapping relationship; that is to say, the pallet enables distortion of at least one of the components in order to bring the regions of the various components into such overlapping relationship. This is achieved by locating e.g. the quarter portions RQ, LQ in a flat condition in relation to a slot (14) of the pallet, which slot corresponds with the desired stitching path, and thereafter positioning the other component, e.g.
    Type: Grant
    Filed: January 18, 1984
    Date of Patent: April 16, 1985
    Assignee: USM Corporation
    Inventors: Anthony M. Garley, Rita A. Stafford
  • Patent number: 4207824
    Abstract: The invention comprises a method of and machine for stitching a thong to an upper in a machine for the manufacture of footwear in which the vamp is sewn to the upper by leather thongs, in which a barbed needle on a ram reciprocating in a fluid operated cylinder is passed through preformed pairs of shaped holes in the material to be thonged, applying a thonging thread to the needle and applying fluid to one end of the cylinder to draw the needle and the thonging thread through the vamp and the upper, withdrawing the needle and moving the material to receive the needle through a succeeding pair of holes on the material and applying fluid to the opposite end side of the ram and re-passing the needle and thonging thread through the vamp and upper for succeeding stitches, an air line being connected to each end of the cylinder with a control valve to regulate the air flow.
    Type: Grant
    Filed: April 10, 1978
    Date of Patent: June 17, 1980
    Assignee: Lambert Howarth & Sons Limited
    Inventor: John Swift