Patent ID: 6614199
Filing Date: 2003-09-02
Classification: A47C,A61G,H02H

Abstract:
An adjustment device for adjusting an article of furniture, the adjustment device comprising:a first voltage source connected to a power mains, a drive unit associated with the first voltage source and including at least one DC positioning motor; a control unit having at least one switching device for operating the at least one positioning motor; a mains-disconnect relay implemented as a double-throw contact relay having contacts with two switch positions, wherein the contacts in one of the two switch positions connect a voltage source that supplies the positioning motors of the drive unit to the AC mains voltage, and in the other switch position to a device that generates pulse signals, said mains-disconnect relay connected to a plug assembly or to a supply line of the voltage source, a switching means for actuating the mains-disconnect relay, wherein the switching means is separate from the at least one switching device of the control unit and is integrated with the control unit or with the supply line connected to the control unit, a network, connected to the switching means that actuates the double-throw contact relay, for processing the pulse signals that are produced in response to an actuation of the switching means, a signal sensor arranged on the power mains between the double-throw contact relay and the switching means and providing an output signal, and a processing unit connected to an output of the signal sensor for actuating the double-throw contact relay in response to the output signal of the signal sensor.