Portable trimmer having rotatable power head

摘要

A portable, hand-operated trimmer (100) has a head module (102) that is removably connected to a power control module (104). The head module (102) has a power head (108) enclosing an electric motor that is operatively connected to a trimming blade (106). The power head (108) is selectably settable in a plurality of angular positions with respect to a head support (145), including a neutral position representing 0 degree rotation, 45 degree flexion and dorsiflexion positions, and 90 degree flexion and dorsiflexion positions. The power head (108) also encloses a stator cartridge (164) that is connected to the housing of the power head (108) by a plurality of fastening members. The head support (145) rotates about the stator cartridge (164) and is engaged by way of a movable engagement pin that is received within a selected recess defined in the stator cartridge (164). The power head housing and stator cartridge (164) further define molded sockets to receive corresponding pivot arms of the head support. An O-ring (167) is disposed about one of the pivot arms to dampen free rotation. The power control module (104) provides power to the power head (108) through a removable rechargeable battery or through direct connection to conventional household power.