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Title:
CIRCULATING PASSAGE STRUCTURE OF ROLLING BODY IN LINEAR MOTIONAL ROLLING BEARING
Document Type and Number:
Japanese Patent JP3143604
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To maintain a continuous change in a gradient and a curvature of points in the whole circulating passage by making respective gradients and curvature of line step end points of both sides of connecting point coincide with each other.
SOLUTION: The circulating passage is designed applying a Cornu spiral to a rotary passage 1. The rotary passage 1 is composed of bilaterally symmetrical Cornu spirals (a) and (b). A starting point of while the spiral (a) is connected to a linear passage 3, while a starting point of the other spiral (b) is connected to a nonlinear passage 4. A cut line angle of a connecting point of respective line steps is kept continuous. As a result, a curvature of the rotary passage 1 reduces after gradually increasing from a starting pint B until the Cornu spirals (a) and (b) cross each other from O, and becomes O when reaching an end point B of the passage. In this way, since the curvature of the rotary passage 1 can continuously vary, a sudden change in centripetal acceleration can be avoided.


Inventors:
Seikyoku RI.
Shi, Kokuichi
Kyo, Bukyo
Cho, Kokuei
Application Number:
JP1997000271881
Publication Date:
March 07, 2001
Filing Date:
September 19, 1997
Export Citation:
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Assignee:
SHANGYIN SCI & TECHNOL CO LTD
International Classes:
F16C29/06; (IPC1-7): F16C29/06
Attorney, Agent or Firm:
下坂 スミ子