Patent ID: 6742768
Filing Date: 2004-06-01
Classification: A47B,B66F

Abstract:
A scissor lifting table, of the type comprising scissor arms (1, 2) assembled rotatably on a common rotation axis (3), and which are fixed to a base or platform (4) and to the tabletop (5) by one of ends of the scissor arms, and fixed to the tabletop (5) and to the base or platform (4), respectively, by the other end, with shifting possibility; furthermore incorporating two thrust shafts (6, 7) parallel to the rotational axis (3), horizontally shifting in opposing directions due to the action of drive means and acting on the opposite sides of the scissor arms (1, 2), causing the tabletop (5) to lift or lower; characterized in that the drive means comprise:a geared motor (8) assembled on a first thrust shaft (6) of the scissor arms (1, 2), and which provides a rotational movement to said first thrust shaft (6); an anti-rotation support (9) preventing the geared motor (8) from rotating around the first thrust shaft (6), and belts (10) fixed to the anti-rotation support (9) by one end and to a periphery of the first thrust shaft (6) by an opposite end, said belts (10) wrapping around the second thrust shaft (7) with an intermediate area, such that, as the first thrust shaft (6) rotates, the winding and unwinding of the belts around said first thrust shaft (6), and the relative approach or distancing of said first and second thrust shaft (6, 7) are achieved, subsequently lifting or lowering the tabletop (5).