A desk includes a base and a work surface assembly mounted on the base. The work surface assembly has a board and a leg having opposite ends connected to the board and the base. The leg has an inclined section and a straight section, and the board has a first end and a second end opposite to the first end. A distance between the first end of the board and the straight section of the leg is greater than that of between the second end of the board and the straight section of the leg. The boards of the work surface assemblies are arranged in a row or two rows of a matrix. Therefore, the work surface assemblies are combinative to be mounted on the base to have various layouts of the boards.

A telescopic post includes a tube set, a power unit, a rotation unit, a threaded tube unit and a threaded rod unit. The tube set includes internal tube inserted in an intermediate tube inserted in an external tube. The power unit is supported on the internal tube. The rotation unit is inserted in the internal tube. The rotation unit is connected to the power unit so that the power unit drives the rotation unit. The threaded tube unit is connected to the rotation unit so that the rotation unit rotates the threaded tube unit. The threaded tube unit is connected to the internal tube so that the threaded tube unit translates the internal tube. The threaded rod unit is connected to the threaded tube unit and the intermediate tube so that the threaded tube unit rotates the threaded rod unit and the threaded rod unit translates the intermediate tube.

A telescopic post includes a tube set, a power unit, a rotation unit, a threaded tube unit and a threaded rod unit. The tube set includes internal tube inserted in an intermediate tube inserted in an external tube. The power unit is supported on the internal tube. The rotation unit is inserted in the internal tube. The rotation unit is connected to the power unit so that the power unit drives the rotation unit. The threaded tube unit is connected to the rotation unit so that the rotation unit rotates the threaded tube unit. The threaded tube unit is connected to the internal tube so that the threaded tube unit translates the internal tube. The threaded rod unit is connected to the threaded tube unit and the intermediate tube so that the threaded tube unit rotates the threaded rod unit and the threaded rod unit translates the intermediate tube.

A furniture rotary system (100, 200, 300, 400, 500) for a piece of furniture (10, 20, 30, 40, 50) is provided. The furniture rotary system is forming a sliding rotary connection between a rotational member (120, 210, 320, 410, 520) and a stationary member (110, 220, 310, 420, 510), wherein said furniture rotary system (100, 200, 300, 400, 500) comprises at least one sliding surface (114, 214, 314, 414, 514) being coated with a lacquer comprising a resin, wherein said lacquer in turn is at least partly coated with a lipophilic composition coating to provide a slide layer with a lowered friction.

A height-adjustable desk is disclosed. Exemplary implementations may include a work surface, a left-side support structure, a right-side support structure, a core body, and a working body that provides the work surface. The core body may include lifting mechanisms such that the work surface of the desk may be positioned for a person in a standing and/or sitting position. The working body may include a control interface configured to be manually engaged by the user, to control lifting and/or lowering of the work surface of the desk.

A height-adjustable desk is disclosed. Exemplary implementations may include a work surface, a left-side support structure, a right-side support structure, a core body, and a working body that provides the work surface. The core body may include lifting mechanisms such that the work surface of the desk may be positioned for a person in a standing and/or sitting position. The working body may include a control interface configured to be manually engaged by the user, to control lifting and/or lowering of the work surface of the desk.

A height adjustment device used on furniture includes an inner tube having multiple clamp portions and multiple contact portions extending from the inner periphery thereof. Multiple grooves are defined in the outer periphery of the inner tube. A pneumatic tube is inserted into the inner tube and clamped by the contact portions. The inner tube is located in an outer tube that has a bottom cap and a top cap. Multiple ridges extend from the inner periphery of the outer tube. Each reduced opening accommodates the ridge corresponding thereto. The pneumatic tube has a piston rod and is connected to the bottom cap of the outer tube. The piston rod drives the inner tube to move relative to the outer tube. Multiple roller units are connected to ridges and roll the grooves of the inner tube to reduce friction between the inner tube and the outer tube.

Described herein are apparatuses (such as desks) with adjustable top panels. In some embodiments, an apparatus includes a frame, having a movable component that is configured to move upwards and downwards. The apparatus also includes: a first top panel attached to the movable component and configured to move upwards and downwards with the movable component, and a second top panel attached to the frame and aligned parallel to the first panel, so that the first panel is adjustable to be flush with the second panel or adjustable to a level above the second panel. The apparatus can also include a barrier panel attached to the frame or the first panel, arranged perpendicular to the first and second panels and oriented downward from the first panel at a side of the first panel closest to the second panel.

Described herein are apparatuses (such as desks) with adjustable top panels. In some embodiments, an apparatus includes a frame, having a movable component that is configured to move upwards and downwards. The apparatus also includes: a first top panel attached to the movable component and configured to move upwards and downwards with the movable component, and a second top panel attached to the frame and aligned parallel to the first panel, so that the first panel is adjustable to be flush with the second panel or adjustable to a level above the second panel. The apparatus can also include a barrier panel attached to the frame or the first panel, arranged perpendicular to the first and second panels and oriented downward from the first panel at a side of the first panel closest to the second panel.

An apparatus and method for automatically adjusting and monitoring use of an adjustable standing desk are disclosed. The invention provides an electric adjustable desk with memory to store a user's preferred sitting and standing heights for the adjustable desk. A setup mode allows the user to store and adjust the preferred sitting and standing heights. A sensor allows the user to quickly adjust from the sitting to standing heights or vice versa.