Rail device for engaging with bed

Abstract

A rail device for engaging with a side of a bed includes a frame which is pressed under the mattress and two connection devices connected to the frame. Two tubes are pivotally connected to the two connection devices and two transverse bars are respectively and pivotally connected between the two tubes and the two connection devices. The frame can be disengaged from the two connection devices and the two transverse bars can be folded at a mediate portion thereof.

What is claimed is:  
     
         1 . A rail device comprising: 
 a U-shed frame having two ends thereof respectively connected to two respective connection devices, each of said connection devices having a first plate and a second plate between which a first tube is pivotally connected, each of said first plate and said second plate having a notch defined therein, a first transverse bar pivotally connected between said two second plates of said two connection devices, a second transverse bar pivotally connected between said two first tubes, each of said first tubes having a first pin extending therethrough and two aligned slots defined through a wall of each of said first tubes, a spring received in each of said first tubes and a first end of said spring contacting said first pin and a second end of said spring engaged with a stop member, a second pin extending through said stop member and two ends of said second pin movably extending through said two slots in each of said first tubes, said two ends of said second pin engaged with said two notches, in said first plate and said second plate.    
     
     
         2 . The rail device as claimed in  claim 1 , wherein said second transverse bar includes two second tubes, two respective first ends of said two second tubes respectively connected to said two first tubes and two receptive second ends of said two second tubes pivotally connected to a connector, said connector having an aperture and a top member mounted to said connector, said top member having a push plate pivotally extending therefrom which is located in alignment with said aperture, two biasing members respectively received in said two respective second ends of said two second tubes, each of said biasing members having an end extending from said second end of each of said second tubes and being accessed by said push plate via said aperture, each of said biasing members having a position pin which movably inserted through a hole in each of said two second tubes.  
     
     
         3 . The rail device as claimed in  claim 1 , wherein each of said second plates has a support port extending therefrom and said first transverse bar is pivotally connected between said two support ports on said two second plates.