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    • 9. 发明授权
    • Hook assembly with coated surfaces for sewing machine
    • 用于缝纫机的带有涂层表面的钩组件
    • US5651323A
    • 1997-07-29
    • US390481
    • 1995-02-17
    • Tokuzo HiroseKiyoshi Nakamura
    • Tokuzo HiroseKiyoshi Nakamura
    • D05B57/16
    • D05B57/16
    • A hook assembly includes a bearing rib on a bobbin case basket or at least a surface layer thereof composed of a synthetic resin, such as a liquid crystal polymer, which has properties such that the amount of the rotating friction generated between such surface layer and an inner surface layer of a groove shaped bearing raceway in which the bearing rib is fitted is lower, with no industrial sewing machine oil therebetween than such industrial sewing machine oil where to be provided therebetween. The hook assembly thus has good durability without any lubrication being provided. Accordingly, oil staining of threads and sewing materials by a lubricant is avoided, and sewing quality is enhanced.
    • 钩组件包括在梭壳篮或至少其表面层上的轴承肋,所述轴承肋由合成树脂(例如液晶聚合物)组成,其具有使得在所述表面层和所述表面层之间产生的旋转摩擦量 其中安装有轴承肋的槽形轴承滚道的内表面层较低,与其间要设置的工业缝纫机油相比,没有工业缝纫机油。 因此,钩组件具有良好的耐久性,而没有提供任何润滑。 因此,避免了通过润滑剂对纱线和缝纫材料的油污染,并且提高了缝纫质量。
    • 10. 发明授权
    • Rotary looptaker
    • 旋转托盘
    • US4970975A
    • 1990-11-20
    • US356345
    • 1989-05-24
    • Ryuzo AndoKousaku TorataniMasamichi SatoNobuyoshi NakashimaYosiyasu Hanya
    • Ryuzo AndoKousaku TorataniMasamichi SatoNobuyoshi NakashimaYosiyasu Hanya
    • D05B57/14D05B57/16
    • D05B57/16
    • A rotary looptaker includes a looptaker body rotatable about a vertical axis and a bobbin case restrained from rotary motion with the looptaker body. A plurality of annular protrusions are provided on a flange of the bobbin case so as to extend in a circumferential direction of the bobbin case and are in engagement with a flat surface formed on a raceway of the looptaker body. When the looptaker body is rotated, the bobbin case slides relative to the looptaker body through a very small contact area between the annular protrusions and the flat surface, thus reducing sliding friction between the looptaker body and the bobbin case. Accordingly, noise and vibration are decreased when a rotation restraining projection of the bobbin case contacts a restraint element secured to a machine frame.
    • 一种旋转打纬器包括可围绕竖直轴线旋转的吸收体,以及与吸收体相对应的旋转运动的梭壳。 在梭壳的凸缘上设置有多个环形突起,以便在梭壳的圆周方向上延伸并且与形成在吸收体本体的滚道上的平坦表面接合。 当吸收体旋转时,梭壳通过环形突起和平坦表面之间的非常小的接触面积相对于吸收体主体滑动,从而减小了吸收体与梭壳之间的滑动摩擦。 因此,当梭壳的旋转抑制突起接触固定在机架上的约束元件时,噪音和振动减小。