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    SLIDING BEARING AND IMAGE FORMING APPARATUS
    1.
    发明申请
    SLIDING BEARING AND IMAGE FORMING APPARATUS 有权
    滑动轴承和图像形成装置

    公开(公告)号：US20140226927A1

    公开(公告)日：2014-08-14

    申请号：US14346675

    申请日：2012-09-20

    Applicant: NTN CORPORATION

    Inventor： Takuya Ishii ,  Ikuma Fujitsuka ,  Kei Hattori ,  Kazuo Hirose ,  Satoru Fukuzawa

    IPC: F16C33/20 ,  F16C33/10 ,  F16C33/12

    CPC classification number: F16C33/201 ,  F16C13/02 ,  F16C17/02 ,  F16C17/022 ,  F16C17/22 ,  F16C23/045 ,  F16C23/046 ,  F16C33/102 ,  F16C33/121 ,  F16C33/124 ,  F16C33/208 ,  F16C2202/32 ,  F16C2204/52 ,  F16C2204/60 ,  F16C2204/66 ,  F16C2204/70 ,  F16C2204/72 ,  F16C2208/32 ,  F16C2208/36 ,  F16C2208/40 ,  F16C2208/52 ,  F16C2208/60 ,  F16C2208/66 ,  F16C2208/78 ,  F16C2220/04 ,  F16C2240/30 ,  F16C2240/54 ,  F16C2324/16 ,  F16C2370/38 ,  G03G15/167 ,  G03G15/2053 ,  G03G15/757 ,  G03G21/1647

    Abstract: Provided is a sliding bearing that has a simple, easy-to-manufacture structure, does not require an insulating sleeve or the like, is not affected by the material or surface roughness of a roller against which the bearing slides, exhibits low friction torque and low wear, tolerates moment loads, and is easy to replace; as well as an image forming apparatus using the bearing. The sliding bearing is a radial sliding bearing provided with a sliding bearing (1), an inner ring (2), and an outer ring (3), the inner ring (2) is made of melt-cast metal and the outer ring (3) being constituted by an article molded from a resin composition, the inner ring (2) comprising a concavely curved surface (2a) on part of the axial direction of the outer circumference and a bearing hole (4) for mating with a support shaft on the inner circumference, the outer ring (3) comprising a convexly curved surface (3a) that contacts and slides against the concavely curved surface (2a) on the outer circumference of the inner ring (2) along part of the axial direction of the inner circumference, and the inner ring (2) and the outer ring (3) relatively rotating without contacting each other apart from the contact between the convexly curved surface and the concavely curved surface.

    Abstract translation: 提供一种滑动轴承，其具有简单，易于制造的结构，不需要绝缘套筒等，不受轴承滑动的辊的材料或表面粗糙度的影响，表现出低摩擦转矩和 低磨损，容易承受力矩，易于更换; 以及使用该轴承的图像形成装置。 滑动轴承是设置有滑动轴承（1），内圈（2）和外圈（3）的径向滑动轴承，内圈（2）由熔铸金属制成，外圈 3）由由树脂组合物成型的制品构成，所述内圈（2）在外周的轴向的一部分上包括凹曲面（2a）和用于与支撑轴配合的轴承孔（4） 所述外圈（3）包括凸形弯曲表面（3a），所述凸形弯曲表面（3a）沿着所述内圈（2）的外周的一部分沿着所述内环（2）的外周的一部分接触并且抵靠所述凹形曲面 内圈和内圈（2）和外圈（3）相对旋转而不与凸曲面和凹曲面之间的接触彼此接触。

    Tripod-type constant velocity joint
    2.
    发明授权
    Tripod-type constant velocity joint 有权

    公开(公告)号：US10233974B2

    公开(公告)日：2019-03-19

    申请号：US15127118

    申请日：2015-03-20

    Applicant: NTN CORPORATION

    Inventor： Satoru Fukuzawa ,  Kenji Yamaoka ,  Ikuma Fujitsuka

    IPC: F16D3/202 ,  F16D3/72 ,  F16D3/205

    Abstract: A tripod-type constant velocity joint includes an intermediate member, and first and second tripod members connected to the respective ends of the intermediate member. The intermediate member includes first and second outer rings. The first tripod member is formed with three protrusions, and the second tripod member is formed with three protrusions. The first outer ring is formed in its inner periphery with three axially extending first track grooves which are open at its axial end surface. The second outer ring is formed in its inner periphery with three axially extending second track grooves which are open at its axial end surface. The protrusions of the first tripod member are axially slidably received in the respective first track grooves. The protrusions of the second tripod member are axially slidably received in the respective second track grooves.

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