A table having a tabletop movable horizontally, particularly along its longest length or to a position that puts the table itself in an off balance state. Since the tabletop is movable, a user can conveniently use different areas of the tabletop or reach articles placed in different areas of the tabletop, without having to move the user's body, which is safer and more convenient for the user.

The height adjustable desk according to the present disclose includes a work surface and at least one telescopic leg attached to the work surface. The telescopic leg has a motor, a gear set, a first rotator, and a second rotator. The gear set has a first gear connected to the motor and a second gear engaged with the first gear, wherein the motor transfers force to the second gear through the first gear. The first rotator is engaged with the second gear and the second rotator engaged with the first rotator. The motor rotates the first rotator through the gear set so that the first rotator can translate along a length of the second rotator. The first gear is located above the motor and the second gear is located above the first rotator.

A mobile workstation with adjustable height of the present disclosure may comprise a top assembly, an adjustment assembly, and a bottom assembly. Adjustment assembly may comprise telescopically engaged segments. One or more pulleys or pulley assemblies may be disposed within one or more of the segments to allow for withdrawing and retracting segments from one another at the same rate. Actuation of the raising or lowering of the overall height of the mobile workstation may be realized through either a manual actuation or an electronic element such as a linear actuator.

A mobile workstation with adjustable height of the present disclosure may comprise a top assembly, an adjustment assembly, and a bottom assembly. Adjustment assembly may comprise telescopically engaged segments. One or more pulleys or pulley assemblies may be disposed within one or more of the segments to allow for withdrawing and retracting segments from one another at the same rate. Actuation of the raising or lowering of the overall height of the mobile workstation may be realized through either a manual actuation or an electronic element such as a linear actuator.

A tabletop elevation adjustment mechanism includes a fixed outer tube, a movable inner tube vertically movable in the fixed outer tube, and a plurality of corrugated sheet members equiangularly fastened to a bottom of the movable inner tube. Each of the corrugated sheet members has a plurality of first and second ridge portions respectively protruding toward two opposite sides thereof. The first ridge portions elastically stopped against an outer surface of the movable inner tube and the second ridge portions elastically stopped against an inner surface of the fixed outer tube.

A tabletop elevation adjustment mechanism includes a fixed outer tube, a movable inner tube vertically movable in the fixed outer tube, and a plurality of corrugated sheet members equiangularly fastened to a bottom of the movable inner tube. Each of the corrugated sheet members has a plurality of first and second ridge portions respectively protruding toward two opposite sides thereof. The first ridge portions elastically stopped against an outer surface of the movable inner tube and the second ridge portions elastically stopped against an inner surface of the fixed outer tube.

A desk within a work surface or table such that the desk can be raised and lowered to any desired position in relation to the work surface using an actuator that controls the use of telescoping legs or rods. During the process of returning the desk back to its original flush, or in horizontal seamless alignment with, the rest of the work surface, a knee action safety device co-acts, or in combination, with a gas spring is used for controlling the lowering of the desk and creating a virtually weightless of desk during final descent; thus, eliminating the possibility of a person's limb or hand being crushed or severely injured, even if these are providing obstruction

A desk within a work surface or table such that the desk can be raised and lowered to any desired position in relation to the work surface using an actuator that controls the use of telescoping legs or rods. During the process of returning the desk back to its original flush, or in horizontal seamless alignment with, the rest of the work surface, a knee action safety device co-acts, or in combination, with a gas spring is used for controlling the lowering of the desk and creating a virtually weightless of desk during final descent; thus, eliminating the possibility of a person's limb or hand being crushed or severely injured, even if these are providing obstruction

A welding table with elevation system, powered with cordless drill, gear reducer, chain, sprockets and, ultimately turning screw posts synchronously, lifting four telescoping legs. Maximum elevated height exceeds most work benches for height matching, and a minimum height goes lower than most low tables. Folding wheel system is independent, lever operated, and works in conjunction with the elevation system. Once table rolls into position, drill is activated, braking is instant, the table lifts itself from the wheels. Wheels are then folded up, a position necessary during minimum height, as the frame gets closer to the ground. This low height enables sitting roll stool usage, and knees and legs enter the rear frame opening. Two drawers above conceal the wheels, have a lever locking system, and necessary when rolling the table. The table top is heavy, one piece removable with normal modular patterned holes throughout, and the addition of large oval holes, and top side overhang, both establishing C-Clamp usage.

A welding table with elevation system, powered with cordless drill, gear reducer, chain, sprockets and, ultimately turning screw posts synchronously, lifting four telescoping legs. Maximum elevated height exceeds most work benches for height matching, and a minimum height goes lower than most low tables. Folding wheel system is independent, lever operated, and works in conjunction with the elevation system. Once table rolls into position, drill is activated, braking is instant, the table lifts itself from the wheels. Wheels are then folded up, a position necessary during minimum height, as the frame gets closer to the ground. This low height enables sitting roll stool usage, and knees and legs enter the rear frame opening. Two drawers above conceal the wheels, have a lever locking system, and necessary when rolling the table. The table top is heavy, one piece removable with normal modular patterned holes throughout, and the addition of large oval holes, and top side overhang, both establishing C-Clamp usage.