Patent ID: 6286441
Filing Date: 2001-09-11
Classification: A47B

Abstract:
A motorized height adjustable table comprising:a support base;a top assembly including a substantially horizontally disposed work surface;a first powered drive assembly including a first electric motor drivingly engaged with said top assembly at one location for effecting vertical movement of said top assembly to adjust the height of the work surface, said first powered drive assembly further including a first drive screw and a first cantilever assembly horizontally offset from said first drive screw and operatively connected thereto, such that said first dive screw raises and lowers said first cantilever assembly to correspondingly raise and lower said work surface;a second powered drive assembly including a second electric motor drivingly engaged with said top assembly at another location for effecting vertical movement of said top assembly to adjust the height of the work surface, said second powered drive assembly including a second drive screw and a second cantilever assembly horizontally offset from said second drive screw and operatively connected thereto, such that said second drive screw raises and lowers said second cantilever assembly to correspondingly raise and lower said work surface, wherein the horizontal offset of said first and second cantilever assemblies relative to the first and second drive screws resists back drive of the first and second drive screws when load is applied to the work surface; anda controller coupled to said first and second drive assemblies for simultaneously controlling said first and second motors.