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    • 2. 发明申请
    • TIRE TREAD HAVING IMPROVED CONTACT PRESSURE DISTRIBUTION
    • 具有改进的接触压力分配的轮胎
    • US20110079334A1
    • 2011-04-07
    • US12572479
    • 2009-10-02
    • Andreas BottBoris ErcegMarkus BrachtlYasuo Wada
    • Andreas BottBoris ErcegMarkus BrachtlYasuo Wada
    • B60C11/04
    • B60C11/0332B60C11/0302B60C11/0306B60C11/1376B60C11/1392
    • A multi-rib tire tread has a plurality of circumferential spaced apart ribs in an axial direction, adjacent ribs separated by a circumferential grooves and each rib having sides extending radially outward to a radially outward contact surface. The outward contact surface of a central rib has an outwardly convex curvature in an axial direction more rounded than a tread curvature. A first lateral rib and a second lateral rib are positioned adjacent opposite sides of the central rib, each lateral rib having an outwardly convex curvature in an axial direction more rounded than a tread curvature. The convex curvature of the first and second lateral ribs are less rounded than the central rib. The radius of curvature of the center rib is within a range of 170 and 270 millimeters; the radius of curvature of the first lateral rib is within a range of 80 to 180 millimeters; and the radius of curvature of the second lateral rib is within a range of 100 to 200 millimeters.
    • 多肋轮胎胎面在轴向方向上具有多个周向隔开的肋,相邻的肋由周向槽分隔开,并且每个肋具有径向向外延伸到径向向外的接触表面。 中心肋的向外接触表面在轴向上具有比胎面曲率更圆的向外凸出的曲率。 第一横向肋和第二横向肋位于中心肋的相对侧附近,每个横向肋在轴向上具有比胎面曲率更圆的向外凸起的曲率。 第一和第二横向肋的凸曲率比中央肋更小。 中心肋的曲率半径在170和270毫米的范围内; 第一侧肋的曲率半径在80至180毫米的范围内; 并且第二侧肋的曲率半径在100至200毫米的范围内。
    • 4. 发明授权
    • Tool holder
    • 工具托架
    • US06651990B2
    • 2003-11-25
    • US09921887
    • 2001-08-06
    • Takehito HigasiYasuo Wada
    • Takehito HigasiYasuo Wada
    • B23B31107
    • B25B23/0035B25D17/088B25D2217/0042B25D2217/0049Y10T279/17076Y10T279/17752
    • A tool holder, for mounting a bit formed with a groove onto a power tool, includes a tool-holding tool, an engagement member, and a resilient member. The tool-holding tube defines a bit insertion hole that extends in an axial direction. The tool-holding tube is formed with an elongated hole that is in connection with the bit insertion hole and that extends in the axial direction. The engagement member is disposed in the elongated hole and partially protrudes into the bit insertion hole. The engagement member is movable, by abutment with and pressing force from the bit being inserted into the bit insertion hole, in the axial direction and, when located at a retraction position in the axial direction, also outward in a radial direction of the tool-holding tube. The resilient member is disposed to an outer periphery of the tool-holding tube at the retraction position. The resilient member increases in radial dimension from an initial state by pressure from the engagement member moving outward by pressing force from the bit. The resilient member resiliently returns to the initial state when pressure from the engagement member stops because the groove of the bit is located at the retraction position. As a result, the resilient member presses the engagement member inward in the radial direction into engagement with the groove of the bit.
    • 用于将形成有凹槽的钻头安装到动力工具上的工具夹具包括工具保持工具,接合构件和弹性构件。 工具保持管限定沿轴向延伸的钻头插入孔。 工具保持管形成有与钻头插入孔连接并且在轴向方向上延伸的细长孔。 接合构件设置在长孔中并部分地突出到钻头插入孔中。 接合构件通过与插入钻头插入孔中的钻头的轴向抵接和抵抗力而可移动,并且当沿着轴向方向位于缩回位置时也可以在工具形状的径向方向上向外移动, 保持管。 弹性构件在退避位置处设置在工具保持管的外周。 弹性构件通过来自接合构件的压力从初始状态增加,该接合构件通过来自钻头的压力向外移动。 由于钻头的凹槽位于缩回位置,弹性构件弹性地返回初始状态,当来自接合构件的压力停止时。 结果,弹性部件沿径向向内按压啮合部件,与该钻头的凹槽啮合。
    • 8. 发明授权
    • Apparatus and method for determining the profile of the tread of a tire
    • 用于确定轮胎胎面轮廓的装置和方法
    • US5485406A
    • 1996-01-16
    • US96837
    • 1993-07-26
    • Yasuo WadaKazuo Asano
    • Yasuo WadaKazuo Asano
    • B60C3/04B60C9/28G01B11/22G01B11/24G01B11/255G01B21/20G01M17/02G01B11/00G01B11/08
    • G01M17/027G01B11/22G01B11/24G01B11/255
    • The invention provides an apparatus, and a method, for detecting the tread profile of a tire mounted about an X-axis comprising a non-contact Y detection means movable in parallel to the X-axis for measuring the distance at a right angle between such means and the peripheral surface of the tread profile in the direction of the Y-axis, X detection means for detecting the position of the Y detection means along the direction of the X-axis, data memory means for storing X and Y data pairs obtained by both such detection means, and radius calculating means for calculating the radius of the article from the X and Y data stored in the data memory means. The radius calculating means includes division means for dividing the X and Y data for a plurality of portions of the tread profile based on predetermined reference values for the tread profile of the tire being measured and arithmetic means for determining the radii of the respective portions each from the corresponding data divided by the division means, the arithmetic means determining the circle equation of: x.sup.2 +y.sup.2 +ax+by+c=0, from the X and Y data to calculate the radius of the tread profile, the coefficients a, b and c of the circle equation being determined by least square approximation.
    • 本发明提供了一种用于检测围绕X轴安装的轮胎的胎面轮廓的装置和方法,包括可以平行于X轴移动的非接触Y检测装置,用于测量这样的直角之间的直角距离 在Y轴方向上的胎面轮廓的装置和外围表面,用于检测Y检测装置沿着X轴方向的位置的X检测装置,用于存储获得的X和Y数据对的数据存储装置 以及半径计算装置,用于根据存储在数据存储装置中的X和Y数据计算物品的半径。 半径计算装置包括分割装置,用于根据用于所测量的轮胎的胎面轮廓的预定参考值来划分胎面轮廓的多个部分的X和Y数据;以及算术装置,用于确定各自部分的各部分的半径 相应的数据除以除法装置,运算装置根据X和Y数据确定圆方程:x2 + y2 + ax + + + c = 0,计算胎面轮廓的半径,系数a,b 圆方程的c由最小二乘近似确定。
    • 9. 发明授权
    • Telephone exchange system
    • 电话交换系统
    • US5404398A
    • 1995-04-04
    • US115012
    • 1993-09-01
    • Yoshihisa DomotoYasuo Wada
    • Yoshihisa DomotoYasuo Wada
    • H04M3/42H04Q3/62H04M3/00
    • H04Q3/625H04M3/42
    • A telephone exchange system useful for a bank or brokerage house speech system or the like, which can accommodate a large number of lines (or trunks) and permit improvement of the reliability and call connection processing capacity. The system comprises exchange sub-systems A (EX-A) and B (EX-B) capable of independently executing an exchange operation and each accommodating a terminal. The terminal, on the other hand, has a speech channel switch for connecting a speech channel including a handset to either exchange sub-system A (EX-A) or B (EX-B). When a process of connecting a call is brought about in the terminal, that terminal selects one of the exchange subsystems and controls the speech channel switch for connecting the call to the selected exchange sub-system.
    • 一种可用于银行或经纪公司语音系统等的电话交换系统,其可以容纳大量线路(或中继线),并允许提高可靠性和呼叫连接处理能力。 该系统包括能够独立地执行交换操作并且各自容纳终端的​​交换子系统A(EX-A)和B(EX-B)。 另一方面,终端具有用于将包括手机的语音信道连接到交换子系统A(EX-A)或B(EX-B)的语音信道切换。 当在终端中产生连接呼叫的过程时,该终端选择交换子系统中的一个并控制用于将呼叫连接到所选择的交换子系统的语音信道交换机。