TRANSMISSION

摘要

PROBLEM TO BE SOLVED: To increase the width of a gear ratio by increasing the maximum value of an eccentric amount for an input shaft of a connection member in a transmission converting a reciprocating motion of the connection member eccentrically connected to the input shaft to an intermittent rotation of an output shaft via a one-way clutch.

SOLUTION: The connection member 22 having one end connected to a first fulcrum 18 eccentrically rotating with respect to an axial line L1 of the input shaft 11 reciprocates, and a drive member 20 fluctuates with a second fulcrum 21 connected to the other end of the connection member 22 so that the output shaft 12 connected to the drive member 20 via the one-way clutch 19 intermittently rotates. On this occasion, an eccentric amount ε of the first fulcrum 18 with respect to the axial line L1 of the input shaft 11 is changed by an eccentric amount changing mechanism 26, so that the stroke of the reciprocation of the connection member 22 is changed to change the rotation number of the output shaft 12. Since the first fulcrum 18 is eccentric with respect to an axial line L2 of a pinion 17, the maximum value of the eccentric amount ε can be increased to increase the width of the gear ratio compared with when the first fulcrum 18 is provided on the axial line L2 of the pinion 17.

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