Back to results
US 12,209,002 B2Granted
Nested lifting columns
AssigneeEwellix AB
InventorsMarcel Soltermann, Martin Voegelin, Emmanuel Eyraud, Daniel Greilinger
Life of this patent
Estimating the term…
Abstract
A lifting column includes at least five column elements which are at least partly nested, and a first and a second drive arrangement. The first drive arrangement is configured to move the three innermost column elements relative to one another. The second drive arrangement is configured to move the three outermost column elements relative to one another.
Claims15
A lifting column comprising:
- at least five column elements being at least partly nested;
- a first drive arrangement configured to move a first group of three column elements of said at least five column elements relative to one another, said first group including an innermost column element of said at least five column elements;
- and
- a second drive arrangement configured to move a second group of three column elements of said at least five column elements relative to one another, said second group including an outermost column element of said at least five column elements,
- the first group and the second group sharing a shared column element of said at least five column elements;
- each of said drive arrangements including a respective drive and two respective screw gears actively connected to said respective drive, and each of said screw gears having a respective threaded spindle and a respective spindle nut.
3 more elements
A lifting column comprising:
- at least five column elements being at least partly nested;
- a first drive arrangement configured to move a first group of three column elements of said at least five column elements relative to one another, said first group including an innermost column element of said at least five column elements;
- and
- a second drive arrangement configured to move a second group of three column elements of said at least five column elements relative to one another, said second group including an outermost column element of said at least five column elements;
- the first group and the second group sharing a column element of said at least five column elements;
- a power supply for supplying power to said first and second drive arrangements;
- and
- a line arrangement including a first line portion running from said power supply to said first drive arrangement and a second line portion running from said first drive arrangement to said second drive arrangement.
5 more elements
A lifting column comprising:
- five column elements being at least partly nested;
- a first drive arrangement configured to move a first group of three column elements of said five column elements relative to one another;
- and
- a second drive arrangement configured to move a second group of three column elements of said five column elements relative to one another;
- each of said drive arrangements including a respective drive and two respective screw gears actively connected to said respective drive, and each of said screw gears having a respective threaded spindle and a respective spindle nut.
2 more elements
Dependencies are inferred from the claim text.