POWER TRANSMISSION DEVICE

摘要

PROBLEM TO BE SOLVED: To suppress impulsive noise during drive control and suppress uncomfortable audible noise by reducing a noise peak value.

SOLUTION: A tip shape of a flapper 3 is divided into an engagement part 3b engaged with a lock part 1b of a cam part 1a and a landing part 3a to the cam part 1a at the time of release of flapper magnetization. A sound deadening material 4 such as a foam elastic material is provided at a flapper landing portion of the cam part 1a.

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