Adjustment mechanism for bed has disc with outer teeth that engage with inner teeth of larger ring, with bars transmitting force to frame section of bed

摘要

Electric motor (10) is connected via gear mechanism (11a) to cam (12) in round disc (13) with outer teething (13a). Disc is fixed to outer frame (2). Outer teething of disc engage with inner teething of ring (14) of larger internal circumference. Bars (7) attached to ring (14) transmit displacement force to bed frame section (3,4). Motor is type used for driving motor vehicle windscreen wipers.