CIRCULATING PASSAGE STRUCTURE OF ROLLING BODY IN LINEAR MOTIONAL ROLLING BEARING

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.

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Inventors:

Toshiyo Asahi
Kunikuni
Xuwu
Zhang Kuniei

Application Number:

JP27188197A

Publication Date:

March 07, 2001

Filing Date:

September 19, 1997

Export Citation:

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Assignee:

HIWIN TECHNOLOGIES CORP.

International Classes:

F16C29/06; (IPC1-7): F16C29/06

Domestic Patent References:

JP55109820A
JP60143224A
JP624922A
JP62256619A

Other References:

【文献】米国特許5649770(US,A)
【文献】米国特許4795272(US,A)
【文献】米国特許5909965(US,A)
【文献】独国特許出願公開19741414(DE,A1)

Attorney, Agent or Firm:

Sumiko Shimosaka

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