Bed vibration mechanism - which is coupled between flat top and bottom frames joined together by springs

摘要

The equipment generates vibration and transmits it to a piece of furniture particularly a bed. It comprises flat top and bottom frames (1, 2) spaced apart and joined by springs (3). The vibrator mechanism (6) is coupled to both. Each frame can be rectangular and of bars, those on opposite sides being joined together by cross-pieces (4, 5), between which the vibrator mechanism is coupled. The latter can comprise a rotary crankshaft driven by an electric motor. A connecting rod couples the crankpin to a flexible strip joining the frames together.