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    • 9. 发明公开
    • EXTENDABLE SHAFT
    • 伸缩杆
    • EP1790868A4
    • 2008-11-12
    • EP05783173
    • 2005-09-13
    • JTEKT CORP
    • TOKIOKA RYOUICHIOZAKI MITSUHARU
    • F16D3/06
    • F16C3/035B62D1/185F16C29/04F16C2326/24F16D3/065
    • An extendable shaft (5) has an outer shaft (13, 13A, 13B, 13C, 13D) and an inner shaft (14, 14A, 14B, 14C, 14D, 14E, 14F). Rolling bodies (15) are elastically held between raceway grooves (16, 17) of the outer shaft and the inner shaft by elastic restoring force of the outer shaft. An outer peripheral surface (141) of the inner shaft includes at least a par of flat sections (21, 22, 41, 42, 43, 44, 45, 46) that are parallel to each other. An inner peripheral surface (131) of the inner shaft includes at least a pair of flat restriction sections (31, 32, 71, 72, 73, 74) that are parallel to each other. Each of the restriction sections (31, 32, 71, 72, 73, 74) engages with corresponding each of the flat sections (21, 22, 41, 42, 43, 44, 45, 46) to restrict the amount of relative rotation of the outer shaft and the inner shaft. A deformation promotion section (33, 33A, 33B, 33C, 33D, 33E, 33F, 33G, 33H, 330) for promoting deformation of the outer shaft is provided in a predetermined region in the circumferential direction of the outer shaft. The predetermined region is a region between a plane (C1) and the restriction sections (31, 32, 71, 72, 73, 74), the plane (C1) including the curvature center (A2) of the outer shaft raceway groove (16) and the center axis (A1) of the outer shaft.
    • 10. 发明专利
    • Universal joint
    • 通用接头
    • JP2006064020A
    • 2006-03-09
    • JP2004244883
    • 2004-08-25
    • Jtekt Corp株式会社ジェイテクト
    • OZAKI MITSUHARU
    • F16D3/41
    • F16D3/41F16D3/385
    • PROBLEM TO BE SOLVED: To provide a universal joint which can reduce noise and is small in resistance torque. SOLUTION: A ball 30 pressed in a ball holding hole 29 consisting of a circular hole formed in an end face 24a of a trunnion 24 is elastically energized in an axial direction A1 and a radial direction R1 of the trunnion 24 by a ball support part 31 consisting of the conical taper surface of an outer wheel cap 28. The backlash in the axial direction A1 and the radial direction R1 of the trunnion 24 is removed. When transmission torque is low, the torque is transmitted from the trunnion 24 to an outer ring cup 28 through a ball 30. When the transmission torque is high, the torque is transmitted from the trunnion 24 to the outer ring cup 28 trough a needle roller 27. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供能够降低噪声并且电阻转矩小的万向节。 解决方案:在由耳轴24的端面24a形成的由圆孔形成的球保持孔29中的球30在轴颈方向A1和耳轴24的径向方向R1上被球弹性地激励 由外轮盖28的锥形锥面组成的支撑部31。轴向方向A1上的齿隙和耳轴24的径向方向R1被去除。 当传动转矩低时,扭矩通过球30从耳轴24传递到外圈杯28.当传动扭矩高时,扭矩通过滚针从耳轴24传递到外圈杯28 27.版权所有(C)2006年,JPO&NCIPI