公开(公告)号：US20170191887A1

公开(公告)日：2017-07-06

申请号：US15325622

申请日：2015-07-02

Applicant: NV Bekaert SA

Inventor： Tiehong YANG ,  Zhigao YU ,  Liu ZHOU ,  Lei GU ,  Wei SHEN ,  Bart VANLANDEGHEM ,  Tom GOMMERS ,  Erwin VEREECKEN ,  Ghislain DOORNAERT

IPC: G01L5/00 ,  G01L5/10

CPC classification number: G01L5/0047 ,  G01L5/108

Abstract: An apparatus (100, 200, 300) and a method for measuring residual torsions of an elongated structure (202) such as a steel cord use a pivot head (102). The pivot head (102) comprises a wheel (104) adapted to guide an elongated structure (202). The wheel (104) is mounted in the pivot head (102) to transmit torques exercised by the elongated structure (202) on the wheel (104) to the pivot head (102). The pivot head (102) is mounted along a pivotal axis (110). This pivotal axis (110) lies in a plane of the wheel (104) and comprises the centre of the wheel (104). Sensor means (116, 206) measure the torque on the pivot head (102). The pivotal movement of the pivot head (102) around the pivotal axis (110) is limited to an angle range of ±5°, preferably ±3° in order to reach an improved accuracy of the torque measurement.

公开(公告)号：US20170073888A1

公开(公告)日：2017-03-16

申请号：US15308304

申请日：2015-04-07

Applicant: NV BEKAERT SA

Inventor： Jan GALLET ,  Rik MULLEBROUCK ,  Ghislain DOORNAERT

IPC: D07B1/06 ,  D07B7/02 ,  D07B5/12

CPC classification number: D07B1/062 ,  D07B1/0626 ,  D07B5/12 ,  D07B7/022 ,  D07B2201/2006 ,  D07B2201/2011 ,  D07B2201/2023 ,  D07B2201/2029 ,  D07B2201/2039 ,  D07B2201/2051 ,  D07B2201/206 ,  D07B2205/3035 ,  D07B2205/3053 ,  D07B2205/3089 ,  D07B2207/208 ,  D07B2207/4072 ,  D07B2401/2015 ,  D07B2501/2046 ,  D07B2801/12 ,  D07B2801/18 ,  D07B2801/10

Abstract: A steel cord for reinforcing a breaker or belt ply in a rubber tire having a core group and a sheath group. The core group consists of two to four core steel filaments with a first diameter dc and the sheath group consists of one to six sheath steel filaments with a second diameter ds. The ratio dc/ds of the first diameter dc to the second diameter ds ranges from 1.10 to 1.70. The two core steel filaments are untwisted or have a twisting step greater than 300 mm. The sheath group is twisted around the core group with a cord twisting step in a cord twisting direction. The ratio of the difference in residual torsions of the core group and the sheath group to the difference in saturation level between the core group and the sheath group ranges from 0.10 to 0.65, preferably from 0.10 to 0.60.

Abstract translation: 一种用于在具有芯组和护套组的橡胶轮胎中增强断路器或带束层的钢丝帘线。 核心组由两个至四个具有第一直径dc的芯钢组成，并且鞘组由具有第二直径ds的一至六个护套钢丝组成。 第一直径dc与第二直径ds的比率dc / ds在1.10至1.70之间。 两芯钢丝未扭绞或扭转步长大于300mm。 护套组绕着芯组绕着绳扭转方向的捻线步骤扭转。 核心组和鞘组的残留扭转差与芯组与鞘组之间的饱和水平差的比率为0.10〜0.65，优选为0.10〜0.60。