Ergonomically adjustable table set

Abstract

A table set includes: a writing board secured with an angle-adjusting device which is angularly adjustable on a basic table, and a reading board universally mounted on the writing board, so that either the writing board or the reading board can be optionally adjusted to obtain a comfortable ergonomic writing or reading angle or height.

1 . An adjustable table set comprising: 
 a writing board having a writing surface formed on a board member and having at least an angle-adjusting device formed on a back portion of the board member and rested on a basic table for optionally adjusting a sloping angle between said board member and the basic table for angularly adjusting said writing surface on said board member; and    a reading board universally mounted on said board member of said writing board for optionally adjusting an orientation or height of a book when clipped on said reading board.    
   
   
       2 . A table set according to  claim 1 , wherein said angle-adjusting device includes: a base frame rested on the basic table, a supporting lever pivotally secured to the base frame, a positioning pin secured on an upper end of the supporting lever, and a rail pivotally secured with said base frame and secured to a back portion of the writing board having a plurality of locking teeth lengthwise formed on the rail to be adjustably engaged with the positioning pin on the supporting lever; whereby upon a forward movement of the positioning pin for engaging the positioning pin with a front locking tooth on the rail, the supporting lever will be biased forwardly to raise the writing board as secured on the rail to increase the sloping angle of the writing board of the table; and upon a rearward movement of the positioning pin with a rear locking tooth, the supporting lever will be biased rearwardly to lower the writing board to thereby adjust and obtain a preferred sloping angle of the writing board on the basic table.  
   
   
       3 . A table set according to  claim 2 , wherein said supporting lever includes a lower end of the lever pivotally secured to the base frame; a tension spring normally resiliently tensioning the lever forwardly to pull the lever for stably engaging the positioning pin on the lever with any one of the teeth formed on the rail; and a rope leading rearwardly to be wound on a roller rotatably mounted on the base frame at a position opposite to the tension spring; whereby when disengaging the positioning pin from the locking tooth, the rope will be pulled to bias the lever rearwardly to disengage the positioning pin from the locking tooth, allowing a rearward biasing movement of the lever in order to lower the writing board to decrease the sloping angle of the writing board on the table.  
   
   
       4 . A table set according to  claim 2 , wherein said writing board includes a linking bar provided to link a pair of said supporting levers to simultaneously operate a pair of said angle-adjusting devices.  
   
   
       5 . A table set according to  claim 2 , wherein said rail further includes a sliding groove lengthwise formed in the rail and juxtapositioned to the plurality of teeth lengthwise formed in the rail, whereby when disengaging the positioning pin on the supporting lever from the locking tooth, the positioning pin will be slidably moved within the groove for lowering the writing board.  
   
   
       6 . A table set according to  claim 2 , wherein said rail further includes an upper slot formed in an upper portion of the rail for slidably holding an upper bolt protruding backward from an upper back portion of the writing board within the upper slot, having an upper knob fastened to the upper bolt; and a lower slot formed in a lower portion of the rail for slidably engaging a lower bolt protruding backward from a lower back portion of the writing board having a lower knob fastened to the lower bolt, thereby adjustably fastening said rail to said writing board.  
   
   
       7 . A table set according to  claim 6 , wherein said lower bolt includes a slim bolt portion slidably engaged with the lower slot in the rail, a shank portion contiguous to the slim bolt portion and having a diameter of the shank portion larger than a diameter of the slim bolt portion, with the shank portion adjustably engaged with one shank opening of a plurality of said shank openings formed in the lower slot; whereby upon moving of the slim bolt portion along the lower slot until obtaining a preferred position, where the shank portion of the lower bolt is engaged with the corresponding shank opening and the lower knob is then fastened to the lower bolt for stably fixing the writing board on the rail.  
   
   
       8 . A table set according to  claim 1 , wherein said reading board includes: a base plate for holding a book thereon, a spine holder having a cross section of U shape and perpendicularly formed on a rear portion of the base plate for holding a book spine in the spine holder, a clip member pivotally resiliently secured to the base plate for resiliently clamping the book on the base plate and on the spine holder, and an universal adapter universally connecting the base plate to the writing board for universally adjusting a positioning angle and height of the reading board on the writing board.  
   
   
       9 . A table set according to  claim 8 , wherein said spine holder further includes a sheet-attaching rod made of ferromagnetic material and secured on the spine holder for magnetically attracting a magnet on the rod for magnetically clamping a sheet between the magnet and the rod; said sheet-attaching rod adjustably secured on the spine holder along a vertical slot vertically formed in the spine holder for optionally adjusting the height of the rod.  
   
   
       10 . A table set according to  claim 8 , wherein said clip member includes a fine post having a pair of bottom pins pivotally secured to a pair of pin sockets recessed in the base plate, a thin clip bar slidably engaged on the post for retaining pages of the book, and a spring resiliently fastening the post to a retainer formed on the base plate.  
   
   
       11 . A table set according to  claim 8 , wherein said universal adapter includes: an insert inserted in a recess recessed in the board member of the writing board, a link member having a vertical shaft perpendicularly formed on a first end of the link member to be rotatably engaged in a shaft hole formed in the insert about a vertical axis, and a universal coupling universally connecting a second end of the link member, opposite to the vertical shaft, and a rear portion of the base plate of the reading board for universally securing the reading board on the writing board.  
   
   
       12 . A table set according to  claim 11 , wherein said universal coupling includes: a horizontal sleeve portion rotatalby engaged with a horizontal shaft of the link member about a horizontal axis, and a shaft portion perpendicular to the horizontal sleeve portion and rotatably engaged with a sleeve portion protruding upwardly from the base plate of the reading board about a longitudinal axis which is perpendicular to the horizontal axis of the horizontal sleeve portion, so that the reading board will be universally secured to the writing board.  
   
   
       13 . A table set according to  claim 12 , wherein said link member includes a plurality of link sections telescopically coupled with one another.  
   
   
       14 . A table set according to  claim 1 , wherein said writing board further includes a main chamber formed in a rear portion of the board member for storing a keyboard of a computer in the main chamber having a cover covering the main chamber; a central platform pivotally formed on a central front portion of the board member and normally being coplanar to the writing surface of the board member and covering a central chamber recessed in the central front portion of the board member for storing a mouse in the central chamber; with the central platform having a rising stem formed on a front portion of the central platform to be upwardly raised until forming a horizontal plane by the central platform adapted to be operated by the mouse on the central platform by engaging and locking a bottom portion of the rising stem with a locking socket formed in a front wall of the central chamber.  
   
   
       15 . A table set according to  claim 14 , wherein said writing board further includes: at least a side platform pivotally formed on a side portion of the board member and normally being coplanar to the writing surface of the board member to cover a side chamber recessed in the side portion of the board member, having a stem formed on a front portion of the side platform and operatively raised upwardly to be locked in a locking recess formed in a side wall of the side chamber, having small items stored in the side chamber, whereby upon raising of the side platform to be horizontally positioned, the small items are placed on the side platform as horizontally positioned.  
   
   
       16 . A table set according to  claim 14 , wherein said writing board includes a pair of handrest pads formed thereon, each said pad having a protrusion pivotally engaged in a hole formed in the board member for pivotally securing the pad on the board member for comfortably cushioning a user's elbow or hand when resting on the writing board.  
   
   
       17 . A table set according to  claim 14 , wherein said writing board includes a plurality of accessory recesses recessed in the writing board for storing stationery therein.  
   
   
       18 . A table set according to  claim 1 , wherein said table set further includes a display means having a supporting base plate for holding a display device thereon, and an elevating device pivotally connected between the supporting base plate and a base frame rested on the basic table for adjusting a height of the display device as laid on the display means.  
   
   
       19 . A table set according to  claim 18 , wherein said elevating device includes a parallelogram-shaped link set pivotally secured between the supporting base plate and the base frame, and an adjusting lever having an upper lever end pivotally secured to the supporting base plate and a lower lever end engageable with one tooth of a plurality of teeth lengthwise formed in the base frame for adjusting the height of the display device as laid on the supporting base plate.  
   
   
       20 . A table set comprising: a base plate for holding a book thereon universally secured to a basic table by a universal adapter; a spine holder formed on a rear portion of said base plate for holding a book spine in the spine holder; a clip member pivotally resiliently secured to the base plate for resiliently clamping the book on said base plate and on said spine holder; and said universal adapter including at least a link member having a first end of said link member universally secured to said basic table and having a second end of said link member universally connected to said base plate.