| 摘要 |
PROBLEM TO BE SOLVED: To provide structure of a pair of involute gears which maintains strength of the tooth root, improving the contact ratio and sufficiently coping with the change of center distance, in the case the tooth number of a small gear is extremely small. SOLUTION: In this structure of a pair of involute gears, the pressure angle of the tooth end of the small gear is made smaller than that of the tooth root, and the pressure angle of the tooth end of the large gear is made equal to the pressure angle of the tooth root of the small gear. Furthermore, the pressure angle of the tooth root of the large gear is made equal to the pressure angle of the tooth end of the small gear.
|
