公开(公告)号：US20140147197A1

公开(公告)日：2014-05-29

申请号：US14084101

申请日：2013-11-19

Applicant: JTEKT CORPORATION

Inventor： Atsuhiro YOSHIDA ,  Naoji KAWASOKO ,  Osamu HONDA ,  Nobuaki SHIBATA

IPC: F16D1/068

CPC classification number: B62D1/20 ,  B62D1/16 ,  F16D1/068 ,  F16D1/072 ,  F16D1/12 ,  F16D3/387 ,  Y10T29/4984 ,  Y10T403/7026

Abstract: In a coupling structure for coupling a shaft to a universal joint yoke, an insertion portion of a shaft is passed through an insertion hole of a universal joint yoke. An outward protrusion of a distal end portion of the shaft faces a peripheral edge of a first opening of the insertion hole across a gap in an axial direction. A fixed portion that adjoins the insertion portion is fixed to a peripheral edge of a second opening of the insertion hole by welding. An engaging portion formed on an outer periphery of the insertion portion and an engaged portion formed in an inner periphery of the universal joint yoke, which defines the insertion hole, are engageable with each other in a rotational direction with a rotation permitting gap for phase adjustment.

Abstract translation: 在用于将轴连接到万向接头轭的联接结构中，轴的插入部穿过万向接头轭的插入孔。 轴的前端部的向外突出部沿着轴向与间隙的第一开口的周缘面对。 与插入部邻接的固定部通过焊接固定在插入孔的第二开口的周缘。 形成在插入部的外周上的接合部和形成在万向节轭的内周中的限定了插入孔的接合部能够沿旋转方向彼此接合，具有用于相位调整的旋转允许间隙 。

公开(公告)号：US20170335893A1

公开(公告)日：2017-11-23

申请号：US15581515

申请日：2017-04-28

Applicant: JTEKT CORPORATION

Inventor： Takeshi KOYAMA ,  Naoki TSUJI ,  Kazunori NAKAYAMA ,  Nobuaki SHIBATA ,  Atsuhiro YOSHIDA

IPC: F16D3/38 ,  F16D1/08 ,  F16D3/40 ,  F16D3/06 ,  F16C3/03

CPC classification number: F16D3/387 ,  F16C3/03 ,  F16D1/0864 ,  F16D3/06 ,  F16D3/40

Abstract: A first yoke includes a tubular portion extending in a first direction, a flange, and a pair of arms extending from the flange. Support holes for a joint spider are formed at tips of the respective arms. The arms have respective inner surfaces facing each other in a second direction. Each of the inner surfaces includes a first recessed portion and a second recessed portion as viewed in a third direction orthogonal to the first direction and the second direction. The first recessed portions are recessed such that the distance between the inner surfaces of the arms increases from a start end located closer to an opening edge of each support hole toward an end point located closer to a base end of the arm. Each of the second recessed portions connects the end point to an end surface of a flange so as to form a curved surface.

公开(公告)号：US20140102235A1

公开(公告)日：2014-04-17

申请号：US14046014

申请日：2013-10-04

Applicant: JTEKT CORPORATION

Inventor： Yuji WAKUGAWA ,  Ryuji NAKATA ,  Atsuhiro YOSHIDA ,  Wataru YAMADA ,  Jun HAMAKITA ,  Hideyuki HONKADO

IPC: B62D3/04 ,  F16H1/16

CPC classification number: B62D3/04 ,  B62D5/0409 ,  F16H1/16 ,  F16H57/039 ,  F16H57/0464 ,  F16H57/0498 ,  Y10T74/19828

Abstract: A speed reducer for an electric power steering system includes a worm, a worm wheel, and a housing. Only a meshing section where the worm and the worm wheel mesh with each other and a space between the worm wheel and the housing are filled with grease. The grease in the space is in contact with both tooth surfaces of the worm wheel and an inner peripheral face of the housing, the inner peripheral face facing the worm wheel.

Abstract translation: 用于电动助力转向系统的减速器包括蜗杆，蜗轮和壳体。 只有蜗杆和蜗轮彼此啮合的啮合部分和蜗轮与壳体之间的空间被填满了油脂。 空间中的油脂与蜗轮的两个齿面和壳体的内周面接触，内周面与蜗轮相对。