| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a gear device and a swing gear device capable of preventing lifting or loosening of members composing a tooth. <P>SOLUTION: A first gear device includes an input member 20 as a first gear, and an inner ring 391 as a second gear. The first end 391a of the inner ring 391 is meshed while being slanted with respect to the input member 20. The input member 20 includes a plurality of holding grooves 79 formed on an input member body 201, and a plurality of pins 77 held in each holding groove 79 and respectively composing teeth 81 of the input member 20. The first end 391a has a plurality of tooth spaces 80 capable of engaging with the pins 77. The resultant force F1+F2 of forces F1, F2 applied to the pin 77 from the holding groove 77 and the tooth space 80 energizes the pin 77 toward a holding groove 79 side. The first contact angleβof the pin 77 with respect to the inner face 79b of the holding groove 79 is larger than the second contact angleαof the pin 77 with respect to the inner face 80b of the tooth space 80. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
