| 主权项 |
1. A first-fail-safe electromotive furniture drive, comprising:
at least one drive unit having at least one motor; at least one actuating device having at least two actuating units, each said actuating units having at least one motor contact element and one safety contact element; at least one supply unit; at least one safety device; at least one safety actuating device, wherein the at least one safety actuating device comprises at least one first main safety contact element having switching contacts, wherein the at least one safety actuating device is mechanically coupled to the least one first main safety contact element, and wherein said switching contacts are configured as electromagnetic contacts for influencing a state of the safety device, and a time delay block, said time delay block having a predetermine time delay, wherein a self locking state of the safety device is implemented by the time delay block. |
