Adjustable bed frame

Claim 2

In a bed frame having a pair of side rails interconnected by a pair of cross members, a center support rail disposed between and generally paralleling the side rails, and means connecting the ends of the center support rail to the cross members, said means including an interlocking connecting means to enable assembly and disassembly of the center support rail, said connecting means including a pair of upstanding headed pins on each end of the center support rail, a pair of slots in each cross member with one of the slots in each pair being L-shaped to enable interengaging of one of the pins therewith, the other slot being parallel to the entrance portion of the L-shaped slot and spaced therefrom a distance less than the space between the headed pins to lock the center rail to the cross members when the pins are interengaged with the slots.

Claim 3

The structure as defined in claim 1 wherein each cross member includes a central insert to vary the space between the side rails to a maximum distance, interlocking means interconnecting the central insert and the end portions of the cross members, and depending support means on each end of the center support rail.

Claim 4

The structure as defined in claim 2 wherein said interlocking means interconnecting the central insert and the end portions of the cross members including pairs of slots and headed projections with each of said slots including an entrance slot communicating with the edge of the member in which the slot is formed thereby enabling assembly of the headed projections into the slots by lateral movement, said entrance slot being located in acute angular relation to the longitudinal axis of the slot and in spaced relation to the ends of the slot for retaining the headed projections within the slot regardless of which end of the slot the headed projection is positioned in.

Claim 5

A bed frame comprising a pair of generally parallel side rails, a pair of cross members interconnecting the side rails, means supporting the bed frame from a supporting surface, each of said cross members including a pair of telescopically oriented members, and interlocking means interconnecting the telescopic members at longitudinally spaced points for locking the telescopic members in predetermined positions in order to space the side rails a predetermined distance from each other, said interlocking means including a pair of headed projections on one of the telescopic members and a plurality of pairs of slots in the other of the members, each of said slots including an entrance slot communicating with the edge of the member in which the slot is formed thereby enabling assembly of the headed projections into the slots for interlocking the telescopic members, each of said slots being elongated and the entrance slot thereto being oriented in acute angular relation to the longitudinal axis of the slot and in spaced relation to the ends of the slot thereby retaining the headed projections within the slot, each of said telescopic members having its outer end pivotally attached to the side rail, said means supporting the frame including depending bracket plates attached to the telescopic members adjacent the point of pivotal connection with the side rails, supporting surface engaging means on the lower end of each plate, each of the plates including a laterally extending plate on the upper end thereof, each side rail including means engaging the lateral plate when the telescopic member is in perpendicular relation therewith thereby providing rigidity between the side rails and telescopic members, and a cenTer support rail interposed between the side rails generally in parallel relation thereto for supporting bedding when the side rails are spaced at a maximum distance apart, depending support means at each end of the center support rail for engaging a supporting surface, an end member at each end of the center support rail in substantially perpendicular relation thereto, headed pins and slot means detachably interconnecting the center support rail and the end members, each of said end members including headed projections and slots which are duplicates of the headed projections and slots on the telescopic cross members for interlocking engagement therewith whereby the end members are inserted into and interconnect the telescopic cross members, said headed pin and slot means interconnecting the end members and center support rail including a pair of slots in each end member with one of the slots in each pair being L-shaped, a pair of headed pins on the center support rail, the other slot in each pair being parallel to the entrance portion of the L-shaped slot and spaced therefrom a distance less than the space between the headed pins to lock the center support rail to the end member when the pins are interengaged with the slots.

Claim 6

A bed frame comprising a pair of generally parallel side rails, a pair of cross members interconnecting the side rails, means supporting the bed frame from a supporting surface, each of said cross members including a pair of telescopically oriented members, and interlocking means interconnecting the telescopic members at longitudinally spaced points for locking the telescopic members in predetermined positions in order to space the side rails a predetermined distance from each other, said interlocking means including a pair of headed projections on one of the telescopic members and a plurality of pairs of slots in the other of the members, each of said slots including an entrance slot communicating with the edge of the member in which the slot is formed thereby enabling assembly of the headed projections into the slots for interlocking the telescopic members, each of said slots being elongated and the entrance slot thereto being oriented in acute angular relation to the longitudinal axis of the slot and in spaced relation to the ends of the slot thereby retaining the headed projections within the slot, each of said telescopic members having its outer end pivotally attached to the side rail, said means supporting the frame including depending bracket plates attached to the telescopic members adjacent the point of pivotal connection with the side rails, supporting surface engaging means on the lower end of each plate, each of the plates including a laterally extending plate on the upper end thereof, each side rail including means engaging the lateral plate when the telescopic member is in perpendicular relation therewith thereby providing rigidity between the side rails and telescopic members, and a cenTer support rail interposed between the side rails generally in parallel relation thereto for supporting bedding when the side rails are spaced at a maximum distance apart, depending support means at each end of the center support rail for engaging a supporting surface, an end member at each end of the center support rail in substantially perpendicular relation thereto, headed pins and slot means detachably interconnecting the center support rail and the end members, each of said end members including headed projections and slots which are duplicates of the headed projections and slots on the telescopic cross members for interlocking engagement therewith whereby the end members are inserted into and interconnect the telescopic cross members, said headed pin and slot means interconnecting the end members and center support rail including a pair of slots in each end member with one of the slots in each pair being L-shaped, a pair of headed pins on the center support rail, the other slot in each pair being parallel to the entrance portion of the L-shaped slot and spaced therefrom a distance less than the space between the headed pins to lock the center support rail to the end member when the pins are interengaged with the slots.

Claim 7

The structure as defined in claim 4 wherein said interlocking projections and slots enable limited adjustment of the length of the cross members in each of their predetermined locked positions.

Claim 8

The structure as defined in claim 4 wherein said interlocking projections and slots require two distinct relative movements oriented in angular relation to each other with one movement terminating intermediate the endmost points of the other movement.

Claim 9

A bed frame comprising a pair of generally parallel side rails, a pair of cross members interconnecting the side rails, means supporting the bed frame from a supporting surface, each of said cross members including a pair of telescopically oriented members, and interlocking means interconnecting the telescopic members at longitudinally spaced points for locking the telescopic members in predetermined positions in order to space the side rails a predetermined distance from each other, said interlocking means including a pair of headed projections on one of the telescopic members and a plurality of pairs of slots in the other of the members, each of said slots including an entrance slot communicating with the edge of the member in which the slot is formed thereby enabling assembly of the headed projections into the slots for interlocking the telescopic members, each of said slots being elongated and the entrance slot thereto is oriented in acute angular relation to the longitudinal axis of the slot and in spaced relation to the ends of the slot thereby rotating the headed projections within the slot, and a center support rail interposed between the side rails generally in parallel relation thereto for supporting bedding when the side rails are spaced at a maximum distance apart, depending support means at each end of the center support rail for engaging a supporting surface, an end member at each end of the center support rail in substantially perpendicular relation thereto, headed pins and slot means detachably interconnecting the center support rail and the end members, each of said end members including headed projections and slots which are duplicates of the headed projections and slots on the telescopic cross members for interlocking engagement therewith whereby the end members are inserted into and interconnect the telescopic cross members, said headed pin and slot means interconnecting the end members and center support rail including a pair of slots in each end member with one of the slots in each pair being L-shaped, a pair of headed pins on the center support rail, the other slot in each pair being parallel to the entrance portion of the L-shaped slot and spaced therefrom a distance less than the space between the headed pins to lock the center support rail to the end member when the pins Are interengaged with the slots.

Claim 10

A bed frame comprising a pair of generally parallel side rails, a pair of cross members interconnecting the side rails, means supporting the bed frame from a supporting surface, each of said cross members including a pair of telescopically oriented members, and interlocking means interconnecting the telescopic members at longitudinally spaced points for locking the telescopic members in predetermined positions in order to space the side rails a predetermined distance from each other, said interlocking means including a pair of headed projections on one of the telescopic members and a plurality of pairs of slots in the other of the members, each of said slots including an entrance slot communicating with the edge of the member in which the slot is formed thereby enabling assembly of the headed projections into the slots for interlocking the telescopic members, each of said slots being elongated and the entrance slot thereto is oriented in acute angular relation to the longitudinal axis of the slot and in spaced relation to the ends of the slot thereby rotating the headed projections within the slot, and a center support rail interposed between the side rails generally in parallel relation thereto for supporting bedding when the side rails are spaced at a maximum distance apart, depending support means at each end of the center support rail for engaging a supporting surface, an end member at each end of the center support rail in substantially perpendicular relation thereto, headed pins and slot means detachably interconnecting the center support rail and the end members, each of said end members including headed projections and slots which are duplicates of the headed projections and slots on the telescopic cross members for interlocking engagement therewith whereby the end members are inserted into and interconnect the telescopic cross members, said headed pin and slot means interconnecting the end members and center support rail including a pair of slots in each end member with one of the slots in each pair being L-shaped, a pair of headed pins on the center support rail, the other slot in each pair being parallel to the entrance portion of the L-shaped slot and spaced therefrom a distance less than the space between the headed pins to lock the center support rail to the end member when the pins Are interengaged with the slots.