| 摘要 |
A mechanism for converting reciprocating movement into unidirectional rotary movement comprises: a rotating shaft that has at least two incompatible helical grooves turned in opposite directions. The shaft is placed inside a feed clutch that can reciprocate along the shaft. The feed clutch has a housing on each end and sliding rings are placed inside the housings. The sliding rings have balls that extend into the helical grooves. The sliding rings are supported by clutch bearings that are installed for rotation in opposite directions. When the feed clutch reciprocates the balls sliding along the helical grooves make the shaft rotate unidirectional.
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