STEEL CORD FOR REINFORCING RUBBER ARTICLE
    121.
    发明申请

    公开(公告)号:US20190234016A1

    公开(公告)日:2019-08-01

    申请号:US16378668

    申请日:2019-04-09

    Inventor: Yusuke NOZAKI

    Abstract: Provided is a steel cord for reinforcing a rubber article which can further improve cut resistance when applied to a tire. Provided is a steel cord for reinforcing a rubber article including: one core strand 11 having a layered-twisted structure formed by twisting a plurality of steel filaments 1; and a plurality of sheath strands 12 having a layered-twisted structure formed by twisting a plurality of steel filaments 2, wherein the sheath strands are twisted around the core strand. A ratio S1/S of the sum S1 of cross-sectional areas of outermost layer sheath filaments constituting an outermost layer sheath of the core strand to the sum S of cross-sectional areas of all filaments constituting the core strand is from 0.69 to 0.74, and a ratio Ps/P of the sum Ps of strengths of the sheath strands to strength P of the cord as a whole is from 0.81 to 0.85.

    Elevator
    124.
    发明授权
    Elevator 有权
    电梯

    公开(公告)号:US09573792B2

    公开(公告)日:2017-02-21

    申请号:US10990388

    申请日:2004-11-18

    Abstract: An elevator may include: a hoisting machine; a set of hoisting ropes; a traction sheave that comprises a plurality of grooves; and diverting pulleys. The hoisting machine may engage the set of ropes via the traction sheave. Each groove may have an opening for receiving an individual rope. Each rope may include steel wires of circular, non-circular, or circular and non-circular cross-section, twisted together to form strands. The strands of each rope may be twisted together to form the respective rope. A thickness of each rope may be greater than or equal to about 2.5 mm and less than or equal to about 8 mm. An average of wire thicknesses of the steel wires may be greater than or equal to 0.1 mm and less than or equal to 0.4 mm. The strength of the steel wires may be greater than 2,300 N/mm2 and less than 3,000 N/mm2.

    Abstract translation: 电梯可以包括:起重机; 一套提升绳索; 牵引绳轮,包括多个槽; 和转向滑轮。 曳引机可以通过牵引滑轮接合该组绳索。 每个槽可以具有用于接收单个绳索的开口。 每个绳索可以包括圆形,非圆形或圆形和非圆形横截面的钢丝,扭绞在一起以形成线。 每个绳索的绞线可以被绞合在一起以形成相应的绳索。 每个绳索的厚度可以大于或等于约2.5mm且小于或等于约8mm。 钢丝的线材厚度的平均值可以大于或等于0.1mm且小于或等于0.4mm。 钢丝的强度可以大于2,300N / mm2,小于3000N / mm2。

    Elevator comprising traction sheave with specified diameter
    125.
    发明授权
    Elevator comprising traction sheave with specified diameter 有权
    包括具有指定直径的牵引滑轮的电梯

    公开(公告)号:US09446931B2

    公开(公告)日:2016-09-20

    申请号:US14022988

    申请日:2013-09-10

    Abstract: An elevator may include: an elevator car; a traction sheave that includes grooves; a hoisting machine configured to drive the traction sheave; and/or hoisting ropes configured to interact with the traction sheave to move the elevator car. An overall contact between the traction sheave and hoisting ropes may exceed a contact angle of 180°. A diameter of the traction sheave may be less than 320 mm. Each hoisting rope may include steel wires twisted together to form strands. The strands of each hoisting rope may be twisted together to form the hoisting rope. A thickness of each hoisting rope may be less than 8 mm. An average of wire thicknesses of the steel wires may be greater than or equal to 0.1 mm and less than or equal to 0.4 mm. A strength of the steel wires may be greater than 2,300 N/mm2 and less than 3,000 N/mm2.

    Abstract translation: 电梯可以包括:电梯轿厢; 包括凹槽的牵引滑轮; 构造成驱动牵引滑轮的曳引机; 和/或构造成与牵引滑轮相互作用以使电梯轿厢移动的提升绳索。 牵引滑轮和提升绳索之间的整体接触可能会超过180°的接触角。 牵引滑轮的直径可以小于320mm。 每个提升绳可以包括扭绞在一起以形成股线的钢丝绳。 每个提升绳索的绞线可以被扭绞在一起以形成提升绳索。 每个提升绳的厚度可以小于8毫米。 钢丝的线材厚度的平均值可以大于或等于0.1mm且小于或等于0.4mm。 钢丝的强度可以大于2,300N / mm 2且小于3,000N / mm 2。

    Steel cord for reinforcing rubber article, and pneumatic tire using same
    126.
    发明授权
    Steel cord for reinforcing rubber article, and pneumatic tire using same 有权
    用于加强橡胶制品的钢丝绳,以及使用其的充气轮胎

    公开(公告)号:US09168787B2

    公开(公告)日:2015-10-27

    申请号:US13991201

    申请日:2011-12-14

    Applicant: Yuji Oyama

    Inventor: Yuji Oyama

    Abstract: Provided is a steel cord for reinforcing rubber articles which has both rubber penetration and productivity and which allows to reduce the weight of a tire without compromising the strength of the tire when applied to a tire, and a pneumatic tire using the same.The steel cord for reinforcing rubber articles of the present invention is a steel cord for reinforcing rubber articles comprising a core formed by arranging two core filaments in parallel without twisting the filaments together, and six sheath filaments twisted around the core. Letting the diameter of the core filament dc (mm), the diameter of the sheath filament ds (mm) and sheath filament twist pitch p (mm), an average sheath filament interval D represented by the following Formula (I): D=[L−6ds{1+(L/p)2}1/2]/6  (I), (where L=(π+2)dc+πds) is from 25 to 80 μm.

    Abstract translation: 本发明提供一种橡胶制品的钢丝帘线,其具有橡胶渗透性和生产率,并且能够在不影响轮胎的强度的情况下减轻轮胎的重量,并且能够使用该帘线。 本发明的增强橡胶制品用钢丝绳是用于加强橡胶制品的钢丝绳,其包括通过平行布置两根芯丝而形成的芯,而不将丝缠绕在一起,以及缠绕在芯上的六根鞘丝。 使芯丝的直径dc(mm),鞘长度ds(mm)的直径和外皮长丝捻距p(mm),由下式(I)表示的平均护套长丝间隔D:D = [ L-6ds {1+(L / p)2} 1/2] / 6(I),(其中L =(&pgr; +2)dc +&pgr; ds)为25至80μm。

    Rubber article-reinforcing steel cord and pneumatic tire
    128.
    发明授权
    Rubber article-reinforcing steel cord and pneumatic tire 有权
    橡胶制品钢丝绳和充气轮胎

    公开(公告)号:US08833414B2

    公开(公告)日:2014-09-16

    申请号:US13266549

    申请日:2010-04-28

    Abstract: Provided is a steel cord for reinforcing a rubber article, which has an improved durability against so-called cuts, such as notches and perforations, which are generated in the case of treading on an obtusely or sharply pointed projection, without decreasing the strength in the axial direction of the cord, and without increasing the thickness in the radial direction, namely without increasing the weight of a tire, as well as a tire using the steel cord for reinforcing a rubber article as a reinforcing material, especially a construction vehicle tire. Also provided is a steel cord for reinforcing rubber articles with a multi-twisted structure formed by twisting a plurality of sheath strands formed by twisting a plurality of wires around a core strand formed by twisting a plurality of wires, and the core strand being constituted of an at least three-layer-twisted structure formed by twisting core filaments and sheath filaments. The lowest tensile breaking strength of filament bs and the tensile breaking strength of steel cord Bc satisfy the relationship represented by the following formula: bs/Bc×100≧0.65.

    Abstract translation: 提供一种用于加强橡胶制品的钢丝绳,其具有改进的耐受性,即在踩在钝角或尖锐的突出部上的情况下产生的所谓的切口(例如切口和穿孔),而不会降低 并且不增加径向厚度,即不增加轮胎的重量,以及使用钢帘线加强作为增强材料的橡胶制品,特别是工程车辆轮胎的轮胎。 还提供了一种用于加强橡胶制品的钢丝帘线,其具有通过扭转通过扭绞多根丝线而形成的多股线缠绕而形成的多根鞘线而形成的多股线条,芯线由 通过扭绞芯丝和鞘细丝形成的至少三层扭曲结构。 细丝bs的拉伸断裂强度最低,钢丝帘线Bc的拉伸断裂强度满足下式所示的关系:bs / Bc×100≥0.65。

    ELEVATOR
    130.
    发明申请
    ELEVATOR 有权
    电梯

    公开(公告)号:US20140124301A1

    公开(公告)日:2014-05-08

    申请号:US14022988

    申请日:2013-09-10

    Abstract: An elevator may include an elevator car; a traction sheave that comprises a plurality of grooves; a hoisting machine configured to drive the traction sheave; and a plurality of beltless hoisting ropes configured to interact with the traction sheave to move the elevator car. An overall contact between the traction sheave and the hoisting ropes may exceed a contact angle of 180°. A diameter of the traction sheave may be less than 320 mm. The hoisting ropes may include a load-bearing part twisted from steel wires. A thickness of the load-bearing part twisted from the steel wires may be less than 8 mm. Each of the hoisting ropes may further include an individual exterior coating.

    Abstract translation: 电梯可以包括电梯轿厢; 牵引绳轮,包括多个槽; 构造成驱动牵引滑轮的曳引机; 以及配置成与牵引滑轮相互作用以移动电梯轿厢的多个无带式提升绳索。 牵引滑轮和提升绳索之间的整体接触可能会超过180°的接触角。 牵引滑轮的直径可以小于320mm。 起重绳索可以包括从钢丝绳扭绞的承重部件。 从钢丝绞合的承重部件的厚度可以小于8mm。 每个提升绳索还可以包括单独的外部涂层。

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