| 摘要 |
<p>Mechanism comprises frame where three parallel and non-coplanar shafts (10, 20, 30) are placed. Each shaft has series of cog rings (11.j. 21.j', 31.j'). Teeth (110.j) of central shaft (10) has edge (111.j, 112.j) with teeth useful in both direction of rotation of shaft. Teeth (211.j', 311.j') of adjacent shafts have teeth useful in only one direction of rotation so that, in first direction o rotation, cogged edge (311.j') of first shaft (30) works together with first cogged edge (111.j) of central shaft, and, in secon direction of rotation, cogged edge (211.j') of second shaft (20) works together with second cogged edge (112.j) of central shaft</p> |
