Provided is a length-adjustable column with a standpipe having a longitudinal axis, a length-adjustment device arranged in the standpipe with a portion displaceably-mounted along the longitudinal axis with respect to the standpipe and an anti-rotation locking device for locking the portion against a rotation around the longitudinal axis relative to the standpipe. The anti-rotation locking device includes an inner element, which is fastened to an outer surface of the portion, and an outer element, which is fastened to an inner surface of the standpipe. The inner element cooperates with positive locking with the outer element against a rotation around the longitudinal axis, and is displaceably guided along the longitudinal axis by the outer element. The inner element is connected with the portion through a substance-to-substance connecting layer.

A folding support structure includes a top support and a leg assembly. The top support has a pivot connector and an assembler, wherein the assembler has an assembling surface. The leg assembly includes a column, which includes a pivotally connected end, a free end, and a wing. The column is pivotally connected to the pivot connector of the top support with the pivotally connected end thereof, whereby the column is pivotable relative to the top support. The wing of the column has an abutting surface. When the column pivots to an unfolded position, the abutting surface of the wing contacts the assembling surface of the assembler, and is secured thereto through a fixing connection approach. By folding a top and legs of a desk, the total volume could be reduced, benefiting the cargo capacity utilization, which therefore increases the shipping efficiency. Furthermore, such a desk can be easily assembled.

Example composite material devices, apparatus, articles of manufacture, and methods of manufacture are disclosed. An example adjustable stabilizer bar includes: a first segment having a first end and a second end; a second segment having a first end and a second end, the first end of the second segment to at least partially overlap the second end of the first segment; an attachment mechanism to position the second segment with respect to the first segment; a first clamping portion at the first end of the first segment to removably affix the first segment to a first furniture element; and a second clamping portion at the second end of the second segment to removably affix the second segment to a second furniture element.

An electric lifting frame includes a lifting pedestal and a remote control. The lifting pedestal includes a supporting base, a lifting rod detachably connected to the supporting base, and a transmission mechanism, a motor, a controller, and a power supply provided at the lifting rod. The motor is configured to effect extension and retraction of the lifting rod via the transmission mechanism. The controller is configured to control starting and stopping and a rotation direction of the motor. The power supply is configured to supply electric energy to the motor and the controller. The controller is further configured to determine a remaining capacity of the power supply and calculate a number of remaining available times of use according to the remaining capacity, a power of the motor, and a stroke of the transmission mechanism.

The table with a porcelain-enameled steel tabletop provides a magnetic, erasable writing surface directly on the tabletop. The tabletop is defined by opposed upper and lower surfaces and a peripheral side edge, and is formed from porcelain-enameled steel. The porcelain-enameled steel may include a steel layer, having opposed upper and lower surfaces, and a porcelain layer enameled on the upper surface of the steel layer. The porcelain layer defines the upper surface of the tabletop, providing the magnetic, erasable writing surface. At least one leg is secured to the lower surface of the tabletop and extends downwardly therefrom. A protective strip may be secured to, and cover, the peripheral side edge of the tabletop. The protective strip may further be secured to, and cover, a portion of the upper surface of the tabletop and a portion of the lower surface of the tabletop.

A desk lifting structure contains: a horizontal rod, an actuation rod, and two legs. The horizontal rod includes two orifices and two locking grooves. The two locking grooves have two engagement portions, two openings, and two guide portions respectively. The actuation rod is located beside and is parallel to the horizontal rod, and the actuation rod includes two movable joints. The two legs include two movable supports and two holders individually. The movable supports have two connection members respectively, the two legs are connected with two ends of the actuation rod respectively, the two connection members have two side plates individually, and the two side plates have two first fixing apertures and two second fixing apertures respectively.

The present invention relates to an improved height-adjustable table (1) which can assist and motivate the user to use the height-adjustable table in a manner which increases health, burning of calories and well-being. The table features a system for determination of user presence and measurement of the time of user presence which can be used for alerting the user to change from a sitting to a standing position in front of the table in intervals based on the practical user presence of the table.

An electrically adjustable piece of furniture comprises a first and at least one second actuator for adjusting a component of the piece of furniture and a controller for controlling the first and at least one second actuator. The actuators each have a first element and a second element which are displaceable relative to each other, and a sensor attached to the first element and adapted to measure a distance between the first and second elements. The distance measurement is based on a time-of-flight measurement of a wave. The controller is arranged to determine an absolute position of each actuator from the respectively measured distance.

An electric table stand for simple assembly and adjustment includes a beam structure (10), support bars (20), and upright structures (30). Each of the support bars (20) includes a base (21) and a plurality of arms (211, 212, 213) extended from the base (21), wherein an accommodating space (A) is defined by the base (21) and the arms (211, 212, 213). One arm (213) of each of the support bars (20) supports one end of the beam structure (10), and the beam structure (10) is operatively moved in or out of the accommodating space (A). The upright structures (30) are connected to the support bars (20). Accordingly, it is easy to adjust and position each support bar (20) and each upright structure (30) on the beam structure (10).

A dual-column office table includes two oppositely disposed stationary upright columns with a connecting rod transversely connected therebetween, two guiding columns separately disposed in the two stationary upright columns, at least one steel ball sleeve fitted on either guiding column, two driving units separately disposed in the two guiding columns, and a table top to which a top portion of each guiding column is fixedly connected. A bottom end of each guiding column is provided with a limiting structure protruding outward. A bottom end of the each driving unit is fixed to a respective table base provided at bottom portion of each stationary upright column. The table top has a bottom surface fixedly connected with a fixing seat and is provided with a lifting control switch, the lifting control switch being connected with the driving units and having an end disposed in the fixing seat.