公开(公告)号：US20130148919A1

公开(公告)日：2013-06-13

申请号：US13699086

申请日：2011-05-19

申请人： Akira Matsuo ,  Shunsuke Takeguchi ,  Shinji Oishi ,  Masashi Nishimura ,  Tsutomu Nakagawa

发明人： Akira Matsuo ,  Shunsuke Takeguchi ,  Shinji Oishi ,  Masashi Nishimura ,  Tsutomu Nakagawa

IPC分类号： F16C33/46 ,  B22F3/02 ,  B22F5/00 ,  B21K1/05

CPC分类号： F16C33/46 ,  B21K1/05 ,  B21K25/00 ,  B22F3/02 ,  B22F3/225 ,  B22F5/00 ,  B22F5/106 ,  F16C33/4629 ,  F16C33/467 ,  F16C33/4676 ,  F16C33/56 ,  F16C2220/20

摘要： The present invention provides a rolling bearing which is excellent in strength, rigidity, heat resistance, and dimensional accuracy while being able to hold rolling elements in a stable manner and reduce manufacturing cost without degrading performance as a bearing and a manufacturing method for the rolling bearing. To achieve the object, the present invention adopts a rolling bearing including a cage provided with a plurality of pockets for housing and hold the rolling elements arranged at specific intervals in a circumferential direction in a peripheral wall of a cylindrical member. The cage is formed integrally by metal powder injection molding; and the cage includes a housing space for the rolling elements and a rolling-element fall-out prevention structure is formed by applying compressive working to an outer edge of the housing space in a direction from an outer circumferential surface toward a radial center of the cage.

摘要翻译： 本发明提供一种能够以稳定的方式保持滚动元件并且降低制造成本而不降低作为轴承的性能而具有优异的强度，刚性，耐热性和尺寸精度的滚动轴承以及用于滚动轴承的制造方法 。 为了实现该目的，本发明采用一种滚动轴承，该滚动轴承包括设置有多个凹穴的保持架，用于容纳并保持沿圆周方向以特定间隔布置的滚动元件在圆柱形构件的周壁中。 笼子通过金属粉末注射成型一体形成; 并且所述保持架包括用于所述滚动元件的容纳空间，并且通过在所述壳体的外周面朝向所述保持架的径向中心的方向上对所述容纳空间的外边缘施加压缩加工而形成滚动元件防脱结构 。

公开(公告)号：US20120294741A1

公开(公告)日：2012-11-22

申请号：US13574901

申请日：2010-12-14

申请人： Masashi Nishimura ,  Shinji Oishi ,  Akio Kato

发明人： Masashi Nishimura ,  Shinji Oishi ,  Akio Kato

IPC分类号： F16H25/14 ,  F04B7/00

CPC分类号： F02M59/102 ,  F01L2107/00 ,  F02M2200/8053 ,  F04B1/0426 ,  Y10T74/18296

摘要： An object of the invention is to provide a pump tappet capable of bearing a large load from a pump plunger even if a case, which is a constituent member of the pump tappet, has a reduced thickness in its intermediate bottom. The invention thus contributes to reduced weight of the overall pump tappet. The case for the pump tappet is formed from an intermediary workpiece 40, which is made by means of a cold forging process of pressing a central region of a round steel material from both surfaces thereby pushing a portion of the material in the central region radially outward, forcing the material to flow axially in an up-down direction, so that an intermediate bottom 40e has a continuous fiber flow.

摘要翻译： 本发明的目的是提供一种能够从泵柱塞承受大负载的泵挺杆，即使作为泵挺杆的构成部件的壳体在其中间底部具有减小的厚度。 因此，本发明有助于减小整个泵挺杆的重量。 用于泵挺杆的壳体由中间工件40形成，该中间工件通过从两个表面压制圆钢材料的中心区域的冷锻工艺制成，从而将中心区域中的材料的一部分径向向外推 ，迫使材料沿上下方向轴向流动，使得中间底部40e具有连续纤维流。