Patent attributes
A vehicular exterior rearview mirror assembly includes a powerfold actuator electrically operable to pivot a mirror head relative to a mounting base. The actuator includes a biasing element disposed between an upper housing and an upper end of a pivot tube and releasably retains the powerfold actuator in at least one detent state. An upper detent is disposed radially outboard of the pivot tube and radially inboard of an output gear and a lower detent, and the upper detent includes a detent lip that engages an upper detent surface of the lower detent. When the actuator is in a primary detent state, a spring load path of the biasing element is through the output gear and lower detent to the base. When the actuator is in a secondary detent state, the spring load path is through the detent lip of the upper detent and lower detent to the base.
