Patent ID: 6398656
Filing Date: 2002-06-04
Classification: F16C,F16M,Y10T

Abstract:
A universal joint comprising:a first rotation guide means; a second rotation guide means guided by the first rotation guide means to be rotatable; and a third rotation guide means guided by the second rotation guide means to be rotatable, said first, second and third rotation guide means being operatively connected so as to provide three degrees of rotational freedom; wherein said first, second and third rotation guide means have rotational center lines,respectively, which intersect each other at one point; and wherein said third rotation guide means guides a shaft member, of a mechanism to which the universal joint is applied, intersecting the rotational center line of said third rotation guide means at an acute angle, the rotational center lines of the second and third rotation guide means intersect each other at an acute angle, and a space is formed around the rotational center line of the third rotation guide means so that said shaft is allowed to turn fall circle.