| 摘要 |
PURPOSE:To ensure even abrasion, to provide strength for tear bending and to prolong the life by arranging the spring set teeth with minimum tooth height so as not to lie continuously, reducing the load on the following tooth with greater tooth height, and thereby making the loads on the teeth uniform. CONSTITUTION:A precedent tooth 3 and the following teeth 5L-11R to cut wide the groove in preceding machining are grouped into one, and the following teeth 5L-11R are put in an appropriate number of left spring set teeth 5L, 9L and right spring set teeth 7R, 11R. From a certain reference position the tooth height of each pair of following teeth shall be equal to or smaller than the tooth height of the precedent tooth 3, and the spring set width of each pair of teeth with minor tooth height be greater than the spring set width of pair of teeth with major tooth height in the following teeth. Thus it is so arranged that spring set teeth with minimum tooth height to do not occur continued, and the loads on the following teeth with greater height are reduced. Uniform loads on the teeth should result in even abrasion, strength for tear bending and prolonged life. |
