Modular bed frame

Abstract

A modular bed frame includes two longitudinal members each having two opposite side walls. One side wall of each longitudinal member has a plurality of spaced-apart openings formed in an upper portion thereof. Lower portions of the two side walls of the longitudinal members are solid. A plurality of support bars are detachably connected between the longitudinal members. Each support bar has a bottom surface formed with two engaging slots proximate to two opposite end portions thereof. Each end portion of each support bar is inserted into one of the openings and then engaged to the lower portion through the engaging slot.

What is claimed is: 
     
         1 . A modular bed frame, comprising:
 a frame including at least two hollow longitudinal members that extend in a longitudinal direction of said frame and that are spaced apart from each other in a width direction of said frame, each of said at least two longitudinal members having two side walls opposite to each other in the width direction, each of said side walls having an upper portion and a lower portion, one of said two side walls of each of said at least two longitudinal members having a plurality of openings formed in said upper portion thereof and spaced apart from each other along a length thereof, said lower portions of said two side walls of said at least two longitudinal members being solid; and   a support unit including a plurality of support bars detachably connected between said at least two longitudinal members, each of said support bars having a bottom surface formed with two engaging slots extending inwardly therefrom and respectively proximate to two opposite end portions of a corresponding one of said support bars, each of said two opposite end portions of each of said support bars being inserted into one of said openings in one of said two side walls of a corresponding one of said at least two longitudinal members and then engaged to said lower portion of said one of said two side walls that is immediately below said one of said openings through said engaging slot.   
     
     
         2 . The modular bed frame as claimed in  claim 1 , wherein said frame further includes two horizontal members spaced apart from each other in the longitudinal direction and connected between said at least two longitudinal members. 
     
     
         3 . The modular bed frame as claimed in  claim 2 , wherein said frame and said support unit cooperatively define a placement space for placing a mattress thereon. 
     
     
         4 . The modular bed frame as claimed in  claim 1 , wherein each of said two engaging slots has a wide mouth portion immediately adjacent to said bottom surface for passage of said lower portion of said one of said two side walls that is immediately below said one of said openings, and a narrow mouth portion spaced apart from said bottom surface for engaging said lower portion of said one of said two side walls that passes through said wide mouth portion. 
     
     
         5 . The modular bed frame as claimed in  claim 4 , wherein said wide mouth portion is defined by two wide mouth surfaces, said narrow mouth portion being defined by two narrow mouth surfaces, a distance between said wide mouth surfaces being greater than a distance between said narrow mouth surfaces. 
     
     
         6 . The modular bed frame as claimed in  claim 1 , wherein each of said openings has a size greater than that of each of said two opposite end portions of each of said support bars so as to allow passage of each of said two opposite end portions of each of said support bars into a corresponding one of said openings. 
     
     
         7 . The modular bed frame as claimed in  claim 6 , wherein each of said openings and each of said two opposite end portions have a rectangular cross section. 
     
     
         8 . The modular bed frame as claimed in  claim 1 , wherein a depth of each of said engaging slots that extends into said bottom surface of each of said support bars is half a height of each of said support bars. 
     
     
         9 . The modular bed frame as claimed in  claim 1 , further comprising a plurality of legs connected to said frame. 
     
     
         10 . The modular bed frame as claimed in  claim 1 , wherein said frame includes three said longitudinal members spaced apart from and parallel to each other, each of said two side walls of a middle one of said longitudinal members having a plurality of said openings, each of said support bars being detachably connected between one of two outer ones of said longitudinal members and said middle one of said longitudinal members.