公开(公告)号：US20040182188A1

公开(公告)日：2004-09-23

申请号：US10743317

申请日：2003-12-23

Applicant: Koyo Seiko Co., Ltd.

Inventor： Yasuhiro Nakamura ,  Tomonori Sugiura ,  Souichi Iwasa ,  Tomomasa Machida

IPC: F16H055/18

CPC classification number: B62D5/0409 ,  F16C25/08 ,  F16C27/04 ,  F16C35/077 ,  F16C2326/24 ,  F16H55/24 ,  Y10T74/19623

Abstract: A motor-driven type power steering apparatus includes: a drive gear connected to an output shaft of a motor; a driven gear in mesh with the drive gear, which is connected to a steering unit; a bearing for supporting one end of the drive gear; a support portion in which the bearing is disposed; and a curved leaf spring which has a length larger than a peripheral length of the bearing and fitted between the bearing and the support portion in a resiliently deformed state. The curved leaf spring urges the bearing so that a distance between an axis of the driven gear and an axis of the drive gear decreases.

Abstract translation: 一种电动动力式动力转向装置，包括：与电动机的输出轴连接的驱动齿轮; 与驱动齿轮啮合的从动齿轮，其连接到转向单元; 用于支撑驱动齿轮的一端的轴承; 支撑部，其中设置有所述轴承; 以及弯曲的板簧，其长度大于轴承的周长，并且在弹性变形状态下装配在轴承和支撑部之间。 弯曲的板簧推动轴承，使得从动齿轮的轴线与驱动齿轮的轴线之间的距离减小。

公开(公告)号：US20040084865A1

公开(公告)日：2004-05-06

申请号：US10340538

申请日：2003-01-10

Applicant: Koyo Seiko Co.,Ltd.

Inventor： Etsurou Kitami ,  Hiroaki Murakami ,  Tomohiro Maekawa ,  Tomomasa Machida ,  Kaname Joshita ,  Teruo Tsutsui

IPC: B62D003/04

CPC classification number: F16D1/06 ,  B62D5/0409 ,  F16D2001/062 ,  F16F15/126 ,  F16H1/16 ,  F16H55/14 ,  Y10T74/19898

Abstract: A worm 1 is composed of an annular tooth body 11 having a tooth 10 on the outer surface thereof, a core body 12 inserted inside the annular tooth body 11; and an elastic coupler 13, which can be transformed in the radial direction, for coupling the core body 12 with the annular tooth body 11. The worm 1 is engaged with the worm wheel with the elastic coupler 13 being transformed in the radial direction in such a manner that a negative amount of backlash is generated at the engagement portion. This can be also employed for the worm wheel. With a reduction gear combination having this structure, the backlash amount at the engagement portion can be adjusted to a proper amount without selecting elements such as the worm and the worm wheel to be assembled.

Abstract translation: 蜗杆1由在其外表面上具有齿10的环形齿体11，插入在环形齿体11的内部的芯体12构成。 以及可以沿径向变形的弹性联接器13，用于将芯体12与环形齿体11联接。蜗杆1与蜗轮啮合，弹性联接器13沿径向方向变形 在接合部产生负量的间隙的方式。 这也可以用于蜗轮。 通过具有这种结构的减速装置组合，可以将接合部分的间隙量调节到适当的量，而不需要选择要组装的蜗杆和蜗轮等元件。