Monitor support device

Abstract

A monitor support device includes a tube for fixing a post and at least one collar is pivotably connected to the tube by engaging two respective toothed surfaces on the tube and the at least one collar so as to support a load in vertical direction. A plurality of pivot members are pivotably connected with each other and the first pivot member of the series of pivot members is pivotably connected to the at least one collar, and the last pivot member of the series of pivot members is pivotably connected with a U-shaped connection member on the monitor. The monitor can be pivoted in horizontal and vertical directions and the toothed surfaces are able to hold the monitor in position in vertical directions.

1 . A monitor support device comprising: 
 a tube adapted to mount on a post and at least one collar connected to the tube and including a first passage;    a first pivot member pivotably connected to the first passage of the at least one collar and having a first bar extending radially therefrom;    an extension rod having a first end connected with the first bar and a second end of the extension rod connected with a second pivot member, the second pivot member having a second passage, and    a third pivot member pivotably connected to the second passage and pivotably connected with a U-shaped connection member which is adapted to be connected with a monitor.    
     
     
         2 . The device as claimed in  claim 1 , wherein the tube includes two holes defined through a wall thereof and a fastening sleeve having a longitudinal slit is received in the tube, two positioning bolts extend through the two holes and are adapted to contact against the post.  
     
     
         3 . The device as claimed in  claim 2 , wherein one of the bolts is connected with an operation handle.  
     
     
         4 . The device as claimed in  claim 1 , wherein the first pivot includes a first threaded rod which extends through the first passage and is cooperated with washers and a nut.  
     
     
         5 . The device as claimed in  claim 1 , wherein the first bar includes a plurality of grooves and ridges defined in an outer periphery thereof, the second pivot member has a second bar extending radially therefrom which includes a plurality of grooves and ridges defined in an outer periphery thereof, the extension rod includes an axial passage defined therethrough so that the first and second bars are respectively inserted into the axial passage from two ends of the extension rod, a plurality of bolts threadedly extend through threaded holes in the extension rod and are connected with the grooves in the first and second pivot members.  
     
     
         6 . The device as claimed in  claim 5 , wherein the extension rod includes a groove defined in a top thereof and the threaded holes are located in an inside of the groove, a decoration plate is engaged with the groove to hide the threaded holes and a fastening belt is wrapped around the extension rod to position the decoration plate.  
     
     
         7 . The device as claimed in  claim 1 , wherein the third pivot includes a second threaded rod which extends through the second passage and is cooperated with washers and a nut.  
     
     
         8 . The device as claimed in  claim 1 , wherein the third pivot includes a lug which has a through hole and the lug is pivotably connected to the U-shaped connection member by extending a bolt through the U-shaped connection member, the through hole in the lug and connected with a handle.  
     
     
         9 . A monitor support device comprising: 
 a tube adapted to mount on a post and having two plates extending radially therefrom and one of the two plates having a positioning plate connected to an inside thereof, the positioning plate having a first toothed surface;    at least one collar having an insertion extending therefrom which is pivotably connected between the two plates, the insertion having a second toothed surface which is matched with the first toothed surface;    a first pivot member pivotably connected to a first passage of the at least one collar and having a first bar extending radially therefrom;    an extension rod having a first end connected with the first bar and a second end of the extension rod connected with a second pivot member, the second pivot member having a second passage, and    a third pivot member pivotably connected to the second passage and pivotably connected with a U-shaped connection member which is adapted to be connected with a monitor.    
     
     
         10 . The device as claimed in  claim 9 , wherein the tube includes two holes defined through a wall thereof and a fastening sleeve having a longitudinal slit is received in the tube, two positioning bolts extend through the two holes and are adapted to contact against the post.  
     
     
         11 . The device as claimed in  claim 10 , wherein one of the bolts is connected with an operation handle.  
     
     
         12 . The device as claimed in  claim 9 , wherein the first pivot includes a first threaded rod which extends through the first passage and is cooperated with washers and a nut.  
     
     
         13 . The device as claimed in  claim 9 , wherein the first bar includes a plurality of grooves and ridges defined in an outer periphery thereof, the second pivot member has a second bar extending radially therefrom which includes a plurality of grooves and ridges defined in an outer periphery thereof, the extension rod includes an axial passage defined therethrough so that the first and second bars are respectively inserted into the axial passage from two ends of the extension rod, a plurality of bolts threadedly extend through threaded holes in the extension rod and are connected with the grooves in the first and second pivot members.  
     
     
         14 . The device as claimed in  claim 13 , wherein the extension rod includes a groove defined in a top thereof and the threaded holes are located in an inside of the groove, a decoration plate is engaged with the groove to hide the threaded holes and a fastening belt is wrapped around the extension rod to position the decoration plate.  
     
     
         15 . The device as claimed in  claim 9 , wherein the third pivot includes a second threaded rod which extends through the second passage and is cooperated with washers and a nut.  
     
     
         16 . The device as claimed in  claim 9 , wherein the third pivot includes a lug which has a through hole and the lug is pivotably connected to the U-shaped connection member by extending a bolt through the U-shaped connection member, the through hole in the lug and connected with a handle.  
     
     
         17 . The device as claimed in  claim 9 , wherein one of the two plates has a plurality of apertures defined therethrough and the positioning plate has a plurality of positioning protrusions which are inserted into the apertures.