Abstract: A table assembly includes tiltable board, an inclination-monitoring module and an attaching apparatus. The inclination-monitor device includes an electronic module and a power supply. The electronic module includes a sensor for detecting the inclination of the tiltable board and a display for showing the inclination. The power supply includes a battery, a holder and a cover. The battery is located in the holder and electrically connected to the electronic module. The cover is engaged with the holder to keep the battery in the holder. The attaching apparatus includes a shell, an upper frame and a lower frame. The shell is located in a bore made in the tiltable board, and receives the inclination-monitoring device. The upper frame extends on the shell, contacts an upper face of the tiltable table, and includes a window to expose the display. The lower frame covers the holder.

Abstract: An automatic elevation-adjusting system includes an elevating unit, a control panel, a setting module, a calculating module and a central control module. The control panel includes a power icon, a direction icon unit, a setting icon, and a mode icon unit. The setting icon is operable to actuate the setting module to allow a user to press the direction icon unit and the power icon to enter data including a name, height, sex and age. The calculating module calculates average elevations for playing games, writing, reading and standing based on the user's sex and age, a pre-set specification of the table and an average height corresponding to the user's sex and age. The central control module actuates the elevating unit to move a table to the average elevation for playing games, writing, reading or standing when the game, writing, reading or standing icon of the mode icon unit is pressed.

Abstract: 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.

Abstract: A multi-task table includes at least one board and an apparatus for adjusting the elevation and angle of the board. The apparatus includes an elevating unit, a tilting unit, a control panel, a setting module, a calculating module and a central control module. The elevating unit is used to move the board. The tilting unit is used to tilt the board. The control panel is used to show data about a user. The setting module is used to receive and store the data via the control panel. The calculating module is used to calculate values of elevation and angle of the board suitable for playing games, writing, reading and stand. The central control module is used to control the elevating unit, the tilting unit, the control panel, the setting module and the calculating module.

Abstract: A holder includes a plate, a bracket, a connector, an angle-retaining element, a fastener and a carrier. The plate is connected to an external object. The bracket includes two lugs extending from a positioning portion. The positioning portion is rotationally connected to the plate. The first lug extends from the positioning portion and includes a smaller aperture in communication with a larger aperture. The second lug extends from the positioning portion and includes a countersink hole. The connector includes an axle extending along a vertical axis from the bearing. The bearing is located between the lugs and formed with a tapered bore along a horizontal axis. The angle-retaining element includes an enlarged head inserted in the larger aperture and a tapered portion inserted in the tapered bore. The fastener includes is inserted in the angle-retaining element, the lugs and the bearing. The carrier includes a bearing for receiving the axle.