1990 年 56 巻 531 号 p. 3038-3045
First, the position where the component of relative velocity on a plane is zero, secondly, the distribution of relative velocity centered by the zero point on a plane, and finally, the contact condition of skew gears on a plane based on the zero point and the relative velocity were investigated. From the results, the contact condition of skew gears by the medium of a plane such as spur gears is obtained. Also, the characteristics of the contact condition of skew gears similar to that of spur gears are obtained.