A support member that is retractable and then can be extended and locked into place in order to support such item. The locking mechanisms for the support member include at least two push button assemblies. In order to retract the support member, a user pushes in the first push button and slides a first telescoping portion of the support member over a second telescoping portion of the support member, which then automatically pushes in the second push button to complete the retraction of the support member.

A table assembly comprising a leg assembly including a first elongated member parallel to a substantially vertical extension axis and a second elongated member supported by the first member for sliding motion along the extension axis between extended and retracted positions, a load compensator including a spring supported by the second elongated member and operatively coupled to the first elongated member, a table top supported by the second member and a locking assembly including a lock housing supported by the leg assembly and forming a lock housing passageway that passes there through, a first coupler supported by the leg assembly and including an elongated central portion that extends through the lock housing passageway and a locking member moveable between a locked position wherein the locking member is operably linked to the first coupler to restrict movement and an unlocked position wherein the locking member is de-linked from the first coupler.

A table assembly comprising a leg assembly including a first elongated member parallel to a substantially vertical extension axis and a second elongated member supported by the first member for sliding motion along the extension axis between extended and retracted positions, a load compensator including a spring supported by the second elongated member and operatively coupled to the first elongated member, a table top supported by the second member and a locking assembly including a lock housing supported by the leg assembly and forming a lock housing passageway that passes there through, a first coupler supported by the leg assembly and including an elongated central portion that extends through the lock housing passageway and a locking member moveable between a locked position wherein the locking member is operably linked to the first coupler to restrict movement and an unlocked position wherein the locking member is de-linked from the first coupler.

A lifting device for lifting a table includes two legs, each of the legs includes a pneumatic assembly and an inner rod, the pneumatic assemblies are disposed in the legs, and the inner rods are inserted in the legs and connected to the pneumatic assemblies, so that the pneumatic assemblies drive the inner rods to move up and down. A synchronization mechanism is disposed between the two legs, and has two ends connected to the inner rods by two connecting assemblies, so that the inner rods are driven by the synchronization mechanism to lift or lower the tabletop in a synchronous manner, the synchronization mechanism includes: a cable control unit and a clutch unit controlled by the cable control unit, the cable control unit includes a control handle and a cable which is disposed at the bottom of the tabletop.

A lift table includes a base unit having a supporting beam connected between two legs. An elongated member is connected to a first linking rod, a second linking rod and a third linking rod and is pivotably connected to the legs. The first linking rod, the second linking rod and the third linking rod are pivotable together with the elongated member relative to the legs and are, thus, pivotable relative to the base unit. A telescopic actuator includes two ends pivotably connected to the supporting beam and the second linking rod, respectively. A top board unit is pivotably connected to the first and third linking rods and includes a switch operable to actuate the actuator to proceed with a telescope movement, causing the first and third linking rods to pivot relative to the legs, thereby lifting or lowering the top board unit.

A lift table includes a base unit having a supporting beam connected between two legs. An elongated member is connected to a first linking rod, a second linking rod and a third linking rod and is pivotably connected to the legs. The first linking rod, the second linking rod and the third linking rod are pivotable together with the elongated member relative to the legs and are, thus, pivotable relative to the base unit. A telescopic actuator includes two ends pivotably connected to the supporting beam and the second linking rod, respectively. A top board unit is pivotably connected to the first and third linking rods and includes a switch operable to actuate the actuator to proceed with a telescope movement, causing the first and third linking rods to pivot relative to the legs, thereby lifting or lowering the top board unit.

A system for adjusting the height of a workstation for use by a user, the system comprising a frame, a worktop having an upper work surface, the worktop being vertically slidably attached to said frame and selectably adjustable in elevation to different positions including at least a first standing position and at least a first sitting position, at least one variable speed electrically-powered vertical-displacement drive mechanism connected between said frame and said worktop, said drive mechanism being arranged to selectively vertically displace the worktop with respect to said frame when said drive mechanism is activated and a processor controlling the drive mechanism to move the worktop to different positions, the processor controlling the drive mechanism to control the rate of worktop height displacement at various speeds including at least a first speed and a second speed that is different than the first speed, the processor controlling the rate of worktop height displacement at the first speed sometimes and at the second speed at other times.

A system for adjusting the height of a workstation for use by a user, the system comprising a frame, a worktop having an upper work surface, the worktop being vertically slidably attached to said frame and selectably adjustable in elevation to different positions including at least a first standing position and at least a first sitting position, at least one variable speed electrically-powered vertical-displacement drive mechanism connected between said frame and said worktop, said drive mechanism being arranged to selectively vertically displace the worktop with respect to said frame when said drive mechanism is activated and a processor controlling the drive mechanism to move the worktop to different positions, the processor controlling the drive mechanism to control the rate of worktop height displacement at various speeds including at least a first speed and a second speed that is different than the first speed, the processor controlling the rate of worktop height displacement at the first speed sometimes and at the second speed at other times.

An exercise system for incorporating physical exercise with sedentary job tasks includes a treadmill that may be walked upon. A workstation is coupled to the treadmill and the workstation is accessible when the treadmill is walked upon. Thus, job tasks may be undertaken simultaneously with physical exercise.

An exercise system for incorporating physical exercise with sedentary job tasks includes a treadmill that may be walked upon. A workstation is coupled to the treadmill and the workstation is accessible when the treadmill is walked upon. Thus, job tasks may be undertaken simultaneously with physical exercise.