Patent ID: 7574965
Filing Date: 2009-08-18
Classification: A47B

Abstract:
1. Height-adjustment device for a table with three or more table legs attached in an edge region of the table, with respectively adjacent table legs being connected to one another by a horizontal, hollow-profile connecting element, comprising: for each of the table legs, a telescopic mechanism for changing a length of a table leg, the mechanism being adjusted by rotating a rotatably mounted adjusting element, wherein the adjusting element is a vertical spindle, and a driving part connected by a rotationally fixed connection to the spindle; a plurality of endless coupling elements which are accommodated within the hollow-profile connecting elements, wherein each said endless coupling element encircles the driving parts of two adjacent table legs and interacts therewith to respectively synchronize the adjusting elements of the table legs with each other; a plurality of guides for the endless coupling elements, each said guide having an external cross section which essentially corresponds to an internal cross section of a table leg, a longitudinally oriented mount for the driving part, and a laterally arranged openings for guiding the endless coupling elements through, each said laterally arranged opening being of a form that, after sections of the respective endless coupling element encircle the driving part, bring together the sections to an extent that the outer sides of the endless coupling element are guided to a width that is equal to or less than an outer diameter of the driving part to within the hollow-profile connecting element, a shape of an inner surface of each guide surrounding respective endless coupling elements is such that the respective endless coupling element is guided around the driving part by the inner surface of the corresponding guide.