Title:
SINTERED MEMBER AND ELECTROMAGNETIC COUPLING
Document Type and Number:
WIPO Patent Application WO/2021/065221
Kind Code:
A1
Abstract:
Provided is a sintered member having a circular shape, comprising: a first surface facing one side in an axial direction; a second surface facing the other side in the axial direction; an inner peripheral surface connected to an inner peripheral edge of the first surface; and a plurality of tooth groups and a plurality of missing tooth portions that are provided alternately along a circumferential direction of the inner peripheral surface, wherein the second surface has a plurality of ball grooves arranged in parallel in the circumferential direction, the tooth groups each have a plurality of spline teeth continuous in the circumferential direction of the peripheral surface, the number of the plurality of missing tooth portions is the same as the number of the plurality of ball grooves, radial positions where the plurality of missing tooth portions are formed are within a radial range where the plurality of ball grooves are formed, and a circumferential range where the plurality of missing tooth portions are formed overlaps with a circumferential range where the plurality of ball grooves are formed.
Inventors:
HARA JUNPEI (JP)
Application Number:
PCT/JP2020/031031
Publication Date:
April 08, 2021
Filing Date:
August 17, 2020
Export Citation:
Assignee:
SUMITOMO ELECTRIC SINTERED ALLOY LTD (JP)
International Classes:
B22F3/10; B22F5/08; C22C33/02; C22C38/00; F16D1/06
Foreign References:
| JP2002178092A | 2002-06-25 | |||
| JPH07158417A | 1995-06-20 | |||
| JPS60172599A | 1985-09-06 | |||
| JP2017133660A | 2017-08-03 |
Attorney, Agent or Firm:
SUNCREST PATENT AND TRADEMARK ATTORNEYS (JP)
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