| 摘要 |
PROBLEM TO BE SOLVED: To stabilize the behavior in stopping of a ratchet wheel in an intermittent rotating mechanism comprising the ratchet wheel advanced by a rotating member alternately repeating its advancing motion and returning motion, and alternately repeating its advancing condition and stopping condition. SOLUTION: A projection 60 is integrally formed on the rotating member 54 reciprocated to intermittently rotate the ratchet wheel 52, and reciprocated with the rotating member 54 to be selectively engaged with a rotation control member for controlling the rotation of the ratchet wheel 52 by the engagement with each tooth 66. Whereby the engagement of the rotation control member 60 with the tooth 66 before the start of the returning motion of the rotating member 54 is inhibited. The sudden change of an angular rotating speed of the ratchet wheel 5 caused by the rushing-in of the rotation control member 60 into the tooth 66 in stopping the ratchet wheel 52, can be prevented. |
