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Operating device for an electrically height-adjustable table, drive system and method for adjusting the height of a tabletop of the table

  • US 9,955,780 B2
  • Filed: 03/13/2014
  • Issued: 05/01/2018
  • Est. Priority Date: 03/22/2013
  • Status: Active Grant
First Claim
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1. An operating device for an electrically height-adjustable table having at least one electrical drive for a height adjustment of a table top of the table, and a controller coupled to the drive for controlling the drive, the operating device comprisingan actuating element to be arranged in the region of the tabletop;

  • a force sensor that is designed to measure a force acting on the tabletop; and

    an evaluation circuit that is coupled to the force sensor and that is designed;

    to detect an actuation of the actuating element while the height adjustment of the tabletop is blocked, in particular, mechanically blocked;

    to receive measurement values from the force sensor in a predetermined period of time after the detected actuation;

    to determine a force alteration value from the received measurement values; and

    if the force alteration value is greater than a threshold value, to output a control signal to the controller, the signal initiating the height adjustment of the tabletop in a direction that depends on a sign of the force alteration.

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