A height adjustment mechanism for an adjustable height table includes an outer sleeve, an inner sleeve, a plug, and a locking mechanism. The outer sleeve is disposed outside the inner sleeve, and the outer sleeve and the inner sleeve are slidable relative to each other. The plug is disposed outside the inner sleeve, and is slidably connected to the inner sleeve. The plug is disposed at an upper end of the outer sleeve, and an outer wall of the plug includes a pressing portion. The locking mechanism operates to push the pressing portion tightly against an outer wall of the inner sleeve to increase the friction between the plug and the inner sleeve, so that the plug and the inner sleeve are relatively fixed.

A variable height platform system comprises a tabletop, a frame assembly for supporting the tabletop, a drive mechanism, a sensor, and a controller. The drive mechanism is configured to set a height of the frame assembly and the tabletop in an elevated position for use. The sensor is configured to sense position and movement of a user in a predetermined area including an area of the variable height platform system and an area proximate the variable height platform system. The controller is operatively connected to the sensor and drive mechanism. The controller is configured to operate the drive mechanism in response to the sensor sensing the position and movement of the user in the predetermined area.

A desk system including desktop, legs, and foot elements is presented. Each leg is rotatably attached at one end to the desktop and attached at another end to one foot element which is also rotatable. The system is disposed in a stowed configuration when legs and foot elements are substantially parallel to the desktop and legs are disposed between and substantially parallel to foot elements. The system is disposed in an upright configuration when legs are substantially perpendicular to the desktop and each leg is substantially perpendicular to one foot element. The system is configured from stowed to upright by separately rotating legs about a minor axis in opposite directions away from one another and by separately rotating foot elements about a major axis in opposite directions toward one another. The system is configured from upright to stowed by separately rotating foot elements about the major axis in opposite directions away from one another and by separately rotating legs about the minor axis in opposite directions toward one another.

A table with a tilting tabletop and ground support legs, having elements adapted to cause, upon a tilting of the tabletop, also a rotation of the ground support legs with respect to the ground.

A variable height platform system comprises a frame assembly, at least two leg assemblies, a drive mechanism, and a sensor. The frame assembly is configured to support and be removably connected to a tabletop. The drive mechanism is configured to either extend or retract each leg assembly in a direction substantially perpendicular to the longitudinal axis to set a height of the frame assembly in an elevated position for use. The sensor is configured to sense position and movement of a user in a predetermined area including an area of the variable height platform system and an area proximate the variable height platform system. The controller is operatively connected to the sensor and drive mechanism. The controller is configured to operate the drive mechanism in response to the sensor sensing the position and movement of the user in the predetermined area.

A table may include a tabletop, a frame, and a leg assembly. The leg assembly may include a support element, a translation mechanism, and a lock device. The support element may include an end structure attached to an elongated structure. The end structure may be rotatably coupled to the frame such that the support element is rotatable relative to the frame between a first position and a second position. The translation mechanism may be retained relative to the support element and the frame. The translation mechanism may be configured to translate along the support element as the support element rotates. The lock device may be configurable in an engaged arrangement in which the lock device fixes the translation mechanism to the support element and in a disengaged arrangement in which the translation mechanism is not fixed relative to the support element.

A table includes a frame and a tabletop coupled with the frame. The frame includes first and second longitudinal bars, each having first and second bars pivotally connected with each other. The tabletop includes a first panel and a second panel. The first panel is coupled with the first bars of the first and second longitudinal bars. The second panel is coupled with the second bars of the first and second longitudinal bars. The tabletop also include one or more first retainers integrally formed or coupled with the first panel and one or more second retainers integrally formed or coupled with the second panel. When the first and second panels are folded onto each other, the first and second retainers engage with each other and lock the table in the folded state.

A table has a tabletop, a vertical support, and a mounting frame disposed at a top end of the vertical support and attached to the tabletop. The mounting frame includes a fixing base, a rotating frame rotatably connected to the fixing base, and a rotating handle assembly rotatably connected to the rotating frame. The rotating frame is operable to rotate between a horizontal position and a vertical position. The rotating handle assembly includes an abutting block that engages the lower embedding notch in the fixing base when the rotating frame is in the horizontal position. The rotating handle assembly has a lower edge that engages the upper embedding notch in the fixing base when the rotating frame is in the vertical position. A handle, which extends outwardly from the rotating handle assembly, is configured to be operated by a user to move the rotating frame between the vertical position and the horizontal position.

A height adjustment mechanism for an adjustable height table includes an outer sleeve, an inner sleeve, a plug, and a locking mechanism. The outer sleeve is disposed outside the inner sleeve, and the outer sleeve and the inner sleeve are slidable relative to each other. The plug is disposed outside the inner sleeve, and is slidably connected to the inner sleeve. The plug is disposed at an upper end of the outer sleeve, and an outer wall of the plug includes a pressing portion. The locking mechanism operates to push the pressing portion tightly against an outer wall of the inner sleeve to increase the friction between the plug and the inner sleeve, so that the plug and the inner sleeve are relatively fixed.

A desk system including desktop, legs, and foot elements is presented. Each leg is rotatably attached at one end to the desktop and attached at another end to one foot element which is also rotatable. The system is disposed in a stowed configuration when legs and foot elements are substantially parallel to the desktop and legs are disposed between and substantially parallel to foot elements. The system is disposed in an upright configuration when legs are substantially perpendicular to the desktop and each leg is substantially perpendicular to one foot element. The system is configured from stowed to upright by separately rotating legs about a minor axis in opposite directions away from one another and by separately rotating foot elements about a major axis in opposite directions toward one another. The system is configured from upright to stowed by separately rotating foot elements about the major axis in opposite directions away from one another and by separately rotating legs about the minor axis in opposite directions toward one another.