Adjustable writing board

Abstract

An adjustable writing board includes a planar member having a front face, a rear face opposed to the front face, two side edges slidably engaged with a first station and a second station respectively; a selective third station slidably engaged with a middle portion of the planar member; a selective remote control panel electrically connected with the first station, the second station, and/or the third station to control operations thereof; wherein each of the first station, the second station, and/or the third station comprises a locking mechanism having a slide guiding rail, a wheel roller slidably received in the slide guiding rail, and a plurality of stoppers, which can retract and contract to block and release the wheel roller.

What is claimed is: 
     
         1 . An adjustable writing board, comprising,
 a planar member having a front face, a rear face opposed to the front face, two side edges slidably engaged with a first station and a second station respectively;   a remote control panel electrically connected with the first and the second station to control operations thereof; wherein   each of the first station and the second station comprises a locking mechanism having a slide guiding rail, a wheel roller slidably received in the slide guiding rail, and a plurality of stoppers, which can retract and contract to block and release the wheel roller.   
     
     
         2 . The adjustable writing board, as recited in  claim 1 , wherein the two side edges of the planar member are vertically moved along the first and second stations. 
     
     
         3 . The adjustable writing board, as recited in  claim 1 , further comprising a third station slidably engaged with a middle portion of the planar member. 
     
     
         4 . The adjustable writing board, as recited in  claim 3 , wherein the two side edges and the middle portion of the planar member are syncronizedly moved along the first, the second, and the third stations at the same level. 
     
     
         5 . The adjustable writing board, as recited in  claim 1 , wherein at least one of the first station and the second station are affixed on a wall. 
     
     
         6 . The adjustable writing board, as recited in  claim 1 , further comprising one or a plural of supporting stands affixed around a periphery of the planar member to support the planar member on a ground. 
     
     
         7 . The adjustable writing board, as recited in  claim 6 , wherein the one or a plural of supporting stand are affixed along a bottom edge and two side edges of the planar member. 
     
     
         8 . The adjustable writing board, as recited in  claim 7 , wherein the first station and the second station are arranged between the two side edges of the planar member and the supporting stand. 
     
     
         9 . The adjustable writing board, as recited in  claim 1 , further comprising a press button on at least one of the first station, the second station. 
     
     
         10 . An adjustable writing board, comprising,
 a planar member having a front face, a rear face opposed to the front face, two side edges slidably engaged with a first station and a second station respectively;   wherein   each of the first station and the second station comprises a locking mechanism having a slide guiding rail, a wheel roller slidably received in the slide guiding rail, and a plurality of stoppers, which can retract and contract to block and release the wheel roller.   
     
     
         11 . The adjustable writing board, as recited in  claim 10 , wherein the planar member is manually and horizontally moved by hand from top to bottom along the first and the second stations. 
     
     
         12 . The adjustable writing board, as recited in  claim 11 , wherein the two side edges of the planar member are vertically moved along the first and second stations. 
     
     
         13 . The adjustable writing board, as recited in  claim 10 , further comprising a third station slidably engaged with a middle portion of the planar member. 
     
     
         14 . The adjustable writing board, as recited in  claim 13 , wherein the two side edges and the middle portion of the planar member are syncronizedly moved along the first, the second, and the third stations at the same level. 
     
     
         15 . The adjustable writing board, as recited in  claim 10 , wherein at least one of the first station, the second station are affixed on a wall. 
     
     
         16 . The adjustable writing board, as recited in  claim 10 , further comprising one or a plural of supporting stands affixed around a periphery of the planar member to support the planar member on a ground. 
     
     
         17 . The adjustable writing board, as recited in  claim 16 , wherein the one or a plural of supporting stands are affixed along a bottom edge and two side edges of the planar member. 
     
     
         18 . The adjustable writing board, as recited in  claim 17 , wherein the first station and the second station are arranged between the two side edges of the planar member and the supporting stand. 
     
     
         19 . The adjustable writing board, as recited in  claim 10 , further comprising a press button on at least one of the first station, the second station.