| 摘要 |
The invention concerns a desmodromic mechanism comprising: a) means for transmitting (13) motion connected to an intermediate element (4, 5) and supported by it; b) a primary cam (2) in permanent contact with each of the transmitting means (13); and c) a secondary cam (11, 12) in permanent contact with each of the transmitting means (13). This mechanism is characterised in that the transmitting means (13) have smooth contact surfaces with the cams (2; 11, 12) in such a way that they ensure a permanent and simultaneous contact with the primary (2) and secondary (11, 12) cams; the primary cam (2), the secondary cam (11, 12) and the intermediate element (4, 5), are assembled to one another so as to compulsorily move in rotation and/or linearly relative to one another and at differential speeds invariable for all the positions of the mechanism. |
