Switching device of planetary gear speed reduction device, has switch assembly switched to position to engage one of gears in idle gear set with input gear and transferring gear of speed reduction device

摘要

A switch assembly (4) which includes multiple recesses (41b) formed at an outer periphery of switching element (41) and a protrusion extending radially outward from the switching element and through a slot of a casing (2), is switched to a position to engage one of the gears in an idle gear set with an input gear and a transferring gear of speed reduction device.