Patent ID: 6969800
Filing Date: 2005-11-29
Classification: A47B,H02G,Y10S

Abstract:
1. A hub concealed by tabletop, comprising: a top lid joined to a bottom casing for defining a space within the hub that is able to receive multiple electrical components, the hub including resilient key buttons to be secured to apertures formed on opposing sides of a base to allow the hub to rotate about the resilient key buttons over the base, the hub being rotatable to an exposed state in use or a concealed state when not in use by means of engagement between two tennon devices and tennon openings of the base, characterized in that: the top lid has a hemispherical configuration with an angle of elevation and formed at a center thereof with a planar circular opening for securing a hub panel, and further includes a plurality of semicircular openings at opposing sides thereof and positioning notches to be secured to said semicircular openings and indents formed on opposing sides of the bottom casing for retaining the resilient key buttons, the top lid further includes the rectangular tennon openings at a rear center thereof into which the tennon devices engage; the hub panel is secured in the planar circular opening at the center of the top lid and preformed with telephone line openings, internet cable openings, power socket openings a push-button opening; the bottom casing is substantially configured to a hemisphere with an angle of elevation corresponding to the top lid, and formed at a bottom of a closed plane thereof with push-button openings, the semicircular openings of the top lid are formed with the semicircular openings and indents for receiving the resilient key buttons; the base is a hollow round base and includes a plurality of apertures at opposing sides thereof for retaining the resilient key buttons, rectangular retaining slots at locations neighboring the apertures for retaining the securing tabs, and the rectangular tennon openings at a front and rear end thereof for engaging with one of the tennon devices; the resilient key buttons are received in the positioning notches of the top lid and the opposing indents of the bottom casing, wherein the key button includes round buttons that are retained in a respective circular retaining opening jointly defined by the opposing semicircular openings of the top lid and bottom casing, the key buttons each having a flange urging against an inner edge of the retaining circular retaining openings, and a shaft with an end inserting into a spring and then retained to a respective aperture jointly defined by the positioning notches of the top lid and the indents of the bottom casing, so as to constrain the spring between the flanges and sidewalls jointly defined by the positioning notches of the top lid and the indents of the bottom casing, thereby exerting an outward force against the key buttons; the two tennon devices each includes a tennon base, a tennon body and the spring, wherein tennon bases are each secured beneath the hub panel and to the socket of the bottom casing by means of opposing slideways, the tennon bases each having a rectangular opening for receiving the respective tennon bodies, the tennon bodies each including a wedged tennon, a protruding oval push-button and a shaft, wherein when the shafts are inserted into the respective springs and rest against the respective rectangular openings of the tennon bases, so as to constrain the springs between short sides of the respective rectangular openings, thereby exerting an outward force against the tennon bodies; and the securing tabs each include an open tab having an inverse-U body including forwards, a closed retaining ring engaging with the respective rectangular retaining slots formed at locations neighboring the apertures of the base, whereby the hub is able to be pressed into a circular opening preformed on a table top by means of the including open tabs to join to the tabletop.