Pivotal device for monitors

Abstract

A pivotal device for monitors includes a link which has a first end pivotably connected to a connection member fixed to a rear side of the monitor and the connection member is pivotably connected on a base. The second end of the link is pivotably connected to two lugs on the base. A distance is defined between the connection member and the lugs. The second end of the link includes an axial slot and an adjustment bolt cooperated with an elastic assembly extends through the slot and the lugs, so that the link can be pivotably and retractably relative to the lugs so as to support the monitor at desired angles.

1 . A pivotal device for monitors, comprising: 
 a connection member adapted to be connected to a rear side of the monitor and the connection member pivotably connected on a base, and    a link having a first end pivotably connected to the connection member and a second end of the link pivotably connected to a first lug and a restriction lug on the base, a distance defined between the connection member and the lugs.    
     
     
         2 . The device as claimed in  claim 1 , wherein the connection member includes two legs which are pivotably connected to two second lugs on the base by a bolt, two third lugs extend from the connection member and the first end of the link is pivotably connected to the two third lugs by extending another bolt through a hole defined in the first end of the link and the two third lugs.  
     
     
         3 . The device as claimed in  claim 1 , wherein a slot is defined axially in the second end of the link and an adjustment bolt extends through the slot and the first lug and the restriction lug.  
     
     
         4 . The device as claimed in  claim 3 , wherein an elastic assembly is sandwiched between the link and the first lug and the restriction lug.  
     
     
         5 . The device as claimed in  claim 4 , wherein the elastic assembly includes a plurality of flexible washers.  
     
     
         6 . The device as claimed in  claim 4 , wherein the elastic assembly includes two elastic tubes.  
     
     
         7 . The device as claimed in  claim 3 , wherein the adjustment bolt includes a polygonal head and the restriction lug includes a polygonal hole with which the polygonal head of the adjustment bolt is engaged.