Folding hand rail and walkway

Abstract

An integrated hand rail structure which is foldable from a user engagement upright position into a flat transport position on mobile industrial equipment. The hand rail is supported on a walkway structure, including an extensible section having rail and post which are pivotally attached thereto. Selective release and locking pin assemblies provide for hand rail locking in upright user position and releasable for a folding flat transport position.

I claim: 
     
         1 . A walkway folding handrail system for mobile continuous dust collector equipment comprising,
 first and second walkway sections mounted above said dust collector equipment,   a movable walkway section overlapping and extending from said second walkway section,   folding handrail assemblies pivotally secured to said first, second and movable walkway sections.   
     
     
         2 . The walkway and folding handrail system for mobile continuous dust collector equipment set forth in  claim 1  wherein said second walkway section extends at right angles from said first walkway sections forming an L-shaped walkway configuration. 
     
     
         3 . The walkway and folding handrail system for mobile continuous dust collector equipment set forth in  claim 1  wherein said secondary walkway section has parallel support beams, walking floor panels extending between said beams and a pair of wheel and beam assemblies fixed within said respective support beams. 
     
     
         4 . The walkway and folding handrail system for mobile continuous dust collector equipment set forth in  claim 1  wherein said movable walkway section has oppositely disposed parallel support beam channels slidably disposed on said secondary walkway section. 
     
     
         5 . A walkway and folding handrail system for mobile continuous dust collector equipment set forth in  claim 1  wherein said folding handrail assemblies comprise,
 pairs of upstanding handrail assemblies pivotally secured to respective walkway support sections along their respective spaced parallel support beams on said walkways. 
 
     
     
         6 . The walkway and folding handrail system for mobile continuous dust collector equipment set forth in  claim 1  wherein said mobile continuous dust collector equipment comprises, a fixed material inlet hose, hose support gantries for equipment access support and an integrated transportation trailer with a support equipment platform thereon. 
     
     
         7 . The walking and folding handrail system for mobile continuous dust collector set forth in  claim 1  wherein an access stair extends from said free end of said first walking section. 
     
     
         8 . The walking and folding handrail system set forth in  claim 5  wherein said pairs of folding handrail assemblies extend in oppositely disposed relation to one another and outwardly from said walking support beams when said folding flat therefrom. 
     
     
         9 . The walking and folding handrail system set forth in  claim 5  wherein said pairs of pivoted handrail assemblies overlie one another when in folded flat position. 
     
     
         10 . The walking and folding handrail system set forth in  claim 5  wherein said pairs of handrail assemblies pivotally secure to respective support section parallel spaced support beams further comprise,
 pivot pin lock assemblies registerable in aligned pin retainment sleeves on said respective walkway support beams.