| 摘要 |
PCT No. PCT/DE94/01445 Sec. 371 Date Jun. 6, 1996 Sec. 102(e) Date Jun. 6, 1996 PCT Filed Dec. 6, 1994 PCT Pub. No. WO95/16152 PCT Pub. Date Jun. 15, 1995A synchronous belt drive, with a high multiplication ratio for transforming a rotary movement into a translation or rotary movement, has at least two rows of teeth with different pitches interconnected by a toothed belt. The rows of teeth with different pitches engage wheels of at least one pair of wheels secured against independent rotation. The products of the number of teeth of the wheels and the pitch of the corresponding row of teeth differ at least slightly from each other. The pitch difference between the toothed belts gives the drive a high multiplication ratio. Very fine gradations and therefore high multiplication ratios may be achieved, even when the tooth modulus is high for reasons of resistance.
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