发明授权
- 专利标题： Bearing associated with means for determining rotational speed
- 专利标题（中）： 与用于确定转速的装置相关的轴承
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申请号： US925263申请日： 1986-10-31
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公开(公告)号： US4774463A公开(公告)日： 1988-09-27
- 发明人: Shotaro Mizobuchi , Yoshikazu Kimura , Katsumi Sasaki
- 申请人： Shotaro Mizobuchi , Yoshikazu Kimura , Katsumi Sasaki
- 申请人地址： JPX Tokyo
- 专利权人： Ebara Corporation
- 当前专利权人： Ebara Corporation
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX60-244920 19851031
- 主分类号： H02K11/00
- IPC分类号： H02K11/00 ; F16C17/04 ; F16C17/24 ; F16C33/24 ; G01D5/30 ; G01D5/36 ; G01P3/44 ; G01P3/486 ; G01D5/34
摘要：
A thrust bearing contructed to comprise a pair of disc elements one of which is arranged to rotate and the other of which is kept stationary, the surface of the rotating side opposing the stationary element being provided with a pattern of spiral grooves which are non-reflective while the remaining lands of the pattern are reflective so that a pulsed light beam is reflected from the pattern when a light beam is directed onto the rotating pattern through a hole provided in the stationary element, the reflected light pulses being utilized for determining the rotational speed of the element under rotation.
公开/授权文献
- US5306450A Method of producing wood type golf club head 公开/授权日：1994-04-26
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