公开(公告)号：US20050183526A1

公开(公告)日：2005-08-25

申请号：US11046901

申请日：2005-02-01

Applicant: Takayuki Yabe

Inventor： Takayuki Yabe

IPC: F16H25/24 ,  F16H3/06 ,  F16H25/22 ,  F16H27/02 ,  F16H29/02 ,  F16H29/20

CPC classification number: F16H25/2418 ,  F16H25/2204 ,  Y10T74/18744

Abstract: A ball screw apparatus has a screw shaft having an outer peripheral surface on which a shaft track groove is formed, a nut moving along with the screw shaft and having front and back end portions and an inner peripheral surface on which a nut track groove is formed and a contact-type seal member provided on each of the front and back end portions of the nut, a groove sliding contact portion is provided on the seal member sliding contacting with the shaft track groove. A first sealing lip is formed on a first outer peripheral of the groove sliding contact portion so as to sliding contact with a first inner surface of the shaft track groove which is defined between a groove bottom center thereof and an edge thereof which is located on a front-side of the moving direction of the nut.

Abstract translation: 滚珠丝杠装置具有螺杆轴，该螺杆轴具有形成有轴轨槽的外周面，螺母与螺杆轴一起移动并具有前端部和后端部，内周面形成有螺母槽槽 以及设置在所述螺母的前端部和后端部的每一个上的接触型密封构件，在与所述轴轨道槽滑动接触的所述密封构件上设置有槽滑动接触部。 第一密封唇形成在槽滑动接触部分的第一外周上，以便与轴轨道槽的第一内表面滑动接触，所述第一内表面限定在位于其上的槽底部中心和其边缘之间 螺母移动方向的前侧。