Patent ID: 9575126
Date: 2017-02-21
CPC Classifications: A47C,G01R

Claim:
1. Item of furniture having at least one movable element and an actuating system for adjusting the movable element, wherein the actuating system comprises a linear actuator, a power supply unit and a manual control device, and the power supply unit and the manual control device are electrically connected to the linear actuator, wherein the power supply unit is electrically connected to the linear actuator by way of a first connecting cable and the manual control device is electrically connected to the linear actuator by way of a second connecting cable, characterized in that the linear actuator includes a standby illuminated indicator and a linear actuator illuminated indicator together indicating the functioning of the at least one actuator, the power supply unit, and the manual control device, wherein the illuminated indicator is disposed on a circuit board provided in the linear actuator, wherein the illuminated indicator is connected to the power supply unit and controlled by the circuit board so as to indicate by a standby state of illumination provided by said standby illuminated indicator that the power supply unit is connected and active and the actuator system is ready for use, said standby illuminated indicator indicating the standby state through a first state of illumination and changing to a second state of illumination when the manual control device is operative and properly connected and is used to control the linear actuator, wherein the illuminated indicator is electrically connected with the manual control device and controlled by the circuit board such that, upon operation of the manual control device, failure of the standby illuminated indictor to change to said second state of illumination indicates a fault in the manual control device or a fault in the connection between the manual control device and the linear actuator effected by the second connecting cable, wherein the linear actuator illuminated indicator has different states of illumination and indicates the actuation of the at least one linear actuator by a change in said states of illumination, and the illuminated indicator is electrically connected to the linear actuator and controlled by the circuit board such that, upon operation of the manual control device, if the standby illuminated indicator changes to said second state of illumination but the linear actuator does not operate, the manual control device is known to be operative and without fault in its connection to the linear actuator due to the change of the standby state of illumination, and there is thus a fault with the linear actuator.