Vibrating device for screeding machine

Abstract

A vibrating device for a screed head assembly mountable to a screeding device includes a vibrating member and a vibrating system. The vibrating member comprises an integrally formed elongated member having upper and lower screeding surfaces and a vertical portion extending therebetween. The vertical portion may define a hollow cavity therealong. The vibrating system is operable to vibrate the vibrating member to compact and smooth the concrete surface. The vibrating system is mounted to the vertical portion of the vibrating member and operates to vibrate the vibrating member to screed the concrete surface when the lower screeding surface engages the concrete surface. The vibrating system may include a drive motor operable to rotatably drive at least one drive pulley which, in turn, drives a drive belt to rotate at least one eccentric element rotatably mounted to the vibrating member.

1 . A vibrating device for a screed head assembly mountable to a screeding device comprising: 
 a vibrating member, said vibrating member comprising an integrally formed elongated member having upper and lower screeding surfaces and a vertical portion extending therebetween, said vertical portion defining a hollow cavity therealong; and    a vibrating system, said vibrating system being operable to vibrate said vibrating member to compact and smooth the concrete surface, said vibrating system being mounted to said vertical portion of said vibrating member and operating to vibrate said vibrating member to screed the concrete surface when the lower screeding surface engages the concrete surface.    
   
   
       2 . The vibrating device of  claim 1 , wherein said vibrating member comprises an extruded vibrating member.  
   
   
       3 . The vibrating device of  claim 1 , wherein said upper and lower screeding surfaces are formed to be substantially similar so that the vibrating member can be flipped over to use the initially upper screeding surface to engage the concrete surface.  
   
   
       4 . The vibrating device of  claim 1 , wherein said hollow cavity is substantially filled with an insulating element.  
   
   
       5 . The vibrating device of  claim 1 , wherein said vibrating system comprises a drive motor operable to rotatably drive at least one eccentric element rotatably mounted to said vertical portion of said vibrating member.  
   
   
       6 . The vibrating device of  claim 5 , wherein said drive motor is operable to rotatably drive at least one drive pulley which, in turn, drives a drive belt to rotate said at least one eccentric element.  
   
   
       7 . The vibrating device of  claim 5 , wherein said at least one eccentric element comprises a pair of eccentric elements spaced along said vibrating member.  
   
   
       8 . The vibrating device of  claim 5 , wherein said eccentric element comprises a pair of eccentric discs mounted at a rotatable shaft.  
   
   
       9 . The vibrating device of  claim 8 , wherein one of said eccentric discs is fixedly mounted to said shaft and the other of said eccentric discs is adjustably positioned about said shaft relative to said one of said eccentric discs.  
   
   
       10 . The vibrating device of  claim 9 , wherein said eccentric discs are selectively oriented to selectively set a degree of vibration of said vibrating element.  
   
   
       11 . A vibrating device for a screed head assembly mountable to a screeding device comprising: 
 a vibrating member, said vibrating member includes a generally planar lower surface for engaging a surface of uncured concrete, dirt, sand, gravel or the like, and a generally vertical portion extending upwardly from said lower surface, said generally vertical portion extending longitudinally along said vibrating member; and    a vibrating system, said vibrating system being operable to vibrate said vibrating member to compact and smooth the concrete surface, said vibrating system including a drive motor operable to rotatably drive at least one drive pulley which, in turn, drives a drive belt to rotate at least one eccentric element rotatably mounted to said vibrating member.    
   
   
       12 . The vibrating device of  claim 11 , wherein said at least one eccentric element comprises a pair of eccentric elements spaced along said vibrating member.  
   
   
       13 . The vibrating device of  claim 11 , wherein said eccentric element comprises a pair of eccentric discs mounted at a rotatable shaft.  
   
   
       14 . The vibrating device of  claim 13 , wherein one of said eccentric discs is fixedly mounted to said shaft and the other of said eccentric discs is adjustably positioned about said shaft relative to said one of said eccentric discs.  
   
   
       15 . The vibrating device of  claim 14 , wherein said eccentric discs are selectively oriented to selectively set a degree of vibration of said vibrating element.  
   
   
       16 . The vibrating device of  claim 11 , wherein said vibrating member comprises an integrally formed elongated member including an upper screeding surface at and along an upper portion of said vertical portion, said vertical portion defining a hollow cavity therealong and between said upper and lower screeding surfaces.  
   
   
       17 . The vibrating device of  claim 16 , wherein said vibrating member comprises an extruded vibrating member.  
   
   
       18 . The vibrating device of  claim 16 , wherein said upper and lower screeding surfaces are formed to be substantially similar so that the vibrating member can be flipped over to use the initially upper screeding surface to engage the concrete surface.  
   
   
       19 . The vibrating device of  claim 16 , wherein said hollow cavity is substantially filled with an insulating element.