Spring Pressure Applying Means Patents (Class 19/281)
  • Patent number: 11913141
    Abstract: In a drafting system (1) for a textile machine, in particular an air-spinning machine, for drafting a strand-shaped fibre band fed to the drafting system, having a plurality of roller pairs arranged in succession in a running direction (A) of the fibre band and each having a top roller (3) and a bottom roller (4), and a weighting device for applying a load to the top roller (3) of the plurality of roller pairs; wherein the respective bottom roller (4) is mounted and held in a housing (2) of the drafting system (1), wherein the respective top roller (3) is mounted and held in the housing (2) of the drafting system (1) by means of a top roller carrier (30) which can be pivoted about a rotary axis.
    Type: Grant
    Filed: November 9, 2022
    Date of Patent: February 27, 2024
    Assignee: Saurer Intelligent Technology AG
    Inventors: Christian Griesshammer, Ludek Malina
  • Patent number: 5027476
    Abstract: In the case of a bearing and loading arm for drafting units having holding devices for pressure roller twins, which each contain a leaf spring, it is provided that the leaf spring, in loading direction and in longitudinal direction of the bearing and loading arm, is fixed in a spring retainer, and that the leaf spring supports itself directly at this bearing and loading arm, transversely with respect to the bearing and loading arm.
    Type: Grant
    Filed: June 15, 1989
    Date of Patent: July 2, 1991
    Assignee: Maschinenfabrik Altstatten AG
    Inventor: Hans Stahlecker
  • Patent number: 4557022
    Abstract: A drafting device for a spinning machine, in which a plurality of loading devices for top rollers is provided, by which each top roller is held in a weighting arm in such a state as being displaceable independently from the other roller without disturbing the drafting operation of the other rollers. By this, a yarn piecing operation in a fasciated yarn spinning system can easily be carried out.
    Type: Grant
    Filed: May 16, 1984
    Date of Patent: December 10, 1985
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Toshio Morishita, Yoshiharu Yasui, Yoshihisa Suzuki, Kazuo Seiki, Haruyoshi Nakamura
  • Patent number: 4187588
    Abstract: A pendulum arm type high sensitivity self-aligning weighting arm includes a press assembly for pressing a driven body consisting of a roller body against a driving body such as a roller body or a belt body, wherein one end of the press assembly which has the function of holding and pressing the driven body and which provides a fulcrum for the weighting arm is supported in such a manner as to be capable of executing three motions, pitching, yawing and rolling, that is, it is supported in a pivot fashion, while the other end holds a rotatable roll shaft on the driven body side. The weighting arm is characterized in that a rolling-contact bearing element is interposed in a region of contact between the press assembly using a compression spring, compressed air or other fluid pressure for pressing the weighting arm, and the weighting arm through a cap.
    Type: Grant
    Filed: February 28, 1978
    Date of Patent: February 12, 1980
    Assignees: NTN Toyo Bearing Co. Ltd., Zenzaburo Tsukumo
    Inventor: Zenzaburo Tsukumo