| 摘要 |
A lengthwise adjustable leg device comprises a holder (1), which is adapted to be fixed to the underside of a table-top (2), first, second and third elongate supporting elements (3, 4, 5) which are directed away from the holder (1) and cooperate telescopically by threading engagement, and means (9, 10) for turning the supporting element (3, 5) mounted in the holder (1). The three supporting elements (3, 4, 5) are arranged inside three telescopingly displaceable tubular elements (15, 16, 17), which are non-turnable relative to each other as well as relative to the holder (1). |
