Box spring construction

#My invention relates to improvements in the construction of box springs intended to support mattresses.

#A properly constructed wooden frame of a box spring usually is built by a workman possessing a fairly high degree of carpentry skill and using materials which are of quite good quality. The time required to assemble the frame constitutes a major part of the total construction time for the box spring unit and therefore both labour and material costs are higher than most manufacturers care to accept.

#I overcome the above as well as other disadvantages of conventional construction methods by providing unique corner connectors for interconnecting ends of the wooden rails of my box spring frame. The connectors are pre-cast or otherwise formed of a suitable plastic material which will allow them to be mass produced. The rails are cut to length and so are corner braces which are used in the construction, the ends of the corner braces also being bevelled. A semi-skilled workman can then assembly the prefabricated parts quickly and easily to provide an extremely strong, well constructed and relatively inexpensive box spring frame.

#In the drawings which illustrate a preferred embodiment of the invention:

#FIG. 1 is a perspective view, partly broken away, showing my box spring construction,

#FIG. 2 is an enlarged plan view of one corner of a frame used in the box spring construction,

#Referring first to FIG. 1 of the drawings, the numeral 10 indicates generally a box spring which embodies the improvements of the present invention. This box spring comprises a rectangular frame 12 which is supported on legs 14. The frame 12 supports a coil spring assembly 16 which is partly enclosed by cover means 18. A box spring of this type, of course, is adapted to support a mattress which has not been illustrated in the drawings.

#The frame generally indicated at 12 is shown in FIGS. 1 and 2 to comprise a pair of parallel side rails 20 and similarly disposed end rails 21. These rails I prefer to make of boards some 5 inches wide so as to ensure a particularly rugged and durable box spring frame. At each corner of the frame 12, the rails are interconnected by a connector 24 made of a suitably strong and hard wearing plastic material.

#Referring now to FIGS. 2 and 3, a corner connector 24 is shown to comprises a pair of sockets 25 which are disposed at right angles to one another to receive adjacent ends of a side rail 20 and end rail 21. The sockets 25 are defined by an outer web 27, top and bottom flanges 28 and 29, and vertically opposing inner flanges 30 and 31. At the junction of the two sockets, the web 27 is rounded to provide a bend 32. The inner flanges 30 and 31 are bevelled as at 33 and 34 opposite the rounded bend 32.