Adjusting device for furniture, and unit made up of at least two adjusting devices

An adjusting device (1) for furniture, in particular for adjusting table legs or backrests or slatted frames, comprises a first profile (2), which is guided such that it can be displaced in the longitudinal direction on or in a second profile (3), wherein the first profile (2) can be latched in different positions along the second profile (3) via a latching means (5, 6) in order to be blocked in a loading direction, and is movable in an adjusting direction counter to the loading direction, wherein, when an end position (11) in the adjusting direction has been reached, the latching means (5, 6) is rendered inactive and, for a restoring operation, the first profile (2) can be moved in the loading direction as far as a starting position (10), in which the latching means (5, 6) is rendered active, wherein a spring (12) is provided, said spring counteracting a movement of the first profile (2) into the end position (11), and the latching means (5, 6) is rendered inactive only once the spring force has been overcom