Patent ID: 8674572
Filing Date: 2014-03-18
Classification: A47B,A47C,A61G,F16H,H02K,Y10T

Abstract:
1. An adjusting drive for an adjustable part of a piece of furniture, particularly for adjusting the height and/or the lying surface of a bed such as, e.g., a hospital bed or nursing bed, said adjusting drive comprising a housing, a gear transmission arranged in said housing, said gear transmission comprising a rotatable drive element and a driven element adapted to be brought into operative connection with an adjustable part of a piece of furniture, a motor having a drive shaft for rotationally driving said drive element, and a displacement sensor for detecting the position of said driven element, said drive element being arranged between two substantially opposite gears mechanically contacted by the drive element, and a first gear being coupled to said driven element and a second gear being coupled to said displacement sensor, wherein the gears each comprise a first toothing arrangement meshing with the drive element, and a second toothing arrangement causing the two gears to mesh directly with each other.