| 摘要 |
PCT No. PCT/SE94/00810 Sec. 371 Date Feb. 27, 1996 Sec. 102(e) Date Feb. 27, 1996 PCT Filed Sep. 2, 1994 PCT Pub. No. WO95/07420 PCT Pub. Date Mar. 16, 1995An eccentric gear comprises first and second gear rings (7,10) of which the one (7) has internal, straight cogs and the other (10) a smaller number of external cogs. At least one gear ring has a conical form with a large end (A-A) and a small end (B-B), the other gear ring (10) having a smaller pitch diameter than the first one (7) and being eccentrically mounted in bearings relative to the first one. Axes of symmetry (24,25) of the respective gear rings form an angle ( alpha ) with each other. The contact points or the locations of engagement between the flanks of the cogs in the one gear ring and the opposed flanks of the cogs in the other gear ring are substantially located along a helical line which extends in axial direction between said large and small ends.
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