초록 ▼

A collapsible bed frame includes two long rods each composed of two connecting rods. The two connecting rods are connected together through a connecting member. Each of the two long rods has two ends and a central portion pivotally connected with an X-shaped support rack, respectively. The X-shaped

A collapsible bed frame includes two long rods each composed of two connecting rods. The two connecting rods are connected together through a connecting member. Each of the two long rods has two ends and a central portion pivotally connected with an X-shaped support rack, respectively. The X-shaped support rack at the central portion is pivotally connected to the connecting member. Support rods are provided between the long rods and the X-shaped support racks at the two ends. The support rods are adapted to assist in pulling or pushing the X-shaped support racks at the two ends for expanding or collapsing the collapsible bed frame with ease.

대표청구항 ▼

1. A collapsible bed frame foldable between an expanded configuration and a collapsed configuration, the bed frame comprising two elongated rods (1) each comprising two connecting rods (11); the two connecting rods (11) being pivotally connected together through a connecting member (3), the two elon

1. A collapsible bed frame foldable between an expanded configuration and a collapsed configuration, the bed frame comprising two elongated rods (1) each comprising two connecting rods (11); the two connecting rods (11) being pivotally connected together through a connecting member (3), the two elongated rods (1) each having two outer ends and a central portion pivotally connected with an X-shaped support rack (2), respectively,the X-shaped support rack (2) at the central portion being attached to the connecting members (3) at a location between the connecting rods (11) and pivotable with respect to the connecting members (3); andthe X-shaped support racks (2) at the outer ends of the elongated rods (1) characterized by: at least one single-piece support rod (4) having a proximal end and a distal end, the proximal end of the at least one single-piece support rod (4) fixedly pivotally attached to at least one of the elongated rods (1) and the distal end of the at least one single-piece support rod (4) pivotally connected to at least one of the X-shaped support racks (2) when the bed frame is in the expanded configuration and in the collapsed configuration. 2. The collapsible bed frame according to claim 1, wherein in the expanded configuration of the bed frame, the two connecting rods (11) of each elongated rod (1) are longitudinally aligned with each other, and the X-shaped support racks (2) and the at least one single-piece support rod (4) are fully extended. 3. The collapsible bed frame according to claim 1, wherein in the collapsed configuration of the bed frame, the connecting rods (11), the X-shaped support racks (2) and the at least one single-piece support rod (4) are folded inward and substantially parallel and adjacent to each other. 4. The collapsible bed frame according to claim 1, wherein the distal end of the at least one single-piece support rod (4) is connected to a lower portion of the at least one of the X-shaped support racks (2). 5. The collapsible bed frame according to claim 4, wherein the distal end of the at least one single-piece support rod (4) is connected to a lower end of the at least one of the X-shaped support racks (2). 6. The collapsible bed frame according to claim 1, wherein the X-shaped support racks (2) at the outer ends of the elongated rods (1) are each defined by a pair of support legs that intersect adjacently at a predetermined area with respect to each other. 7. A collapsible bed frame, foldable between an expanded configuration and a collapsed configuration, the bed frame comprising two elongated rods (1) each having two outer ends and a central portion; each elongated rod (1) comprising two connecting rods (11) pivotally connected together through a connecting member (3);X-shaped support racks (2), each pivotally connected with the elongated rods (1) at opposing outer ends of the elongated rods (1) and at opposing central portions of the elongated rods (1), the X-shaped support rack (2) at the central portion being attached to the connecting members (3) at a location between the connecting rods (11) and pivotable with respect to the connecting members (3); andat least one support rod (4) having first and second ends, the at least one support rod first end pivotally connected to a lower portion of at least one X-shaped support rack (2) and the at least one support rod second end fixedly pivotally attached to at least one elongated rod (1) when the bed frame is in the expanded configuration and in the collapsed configuration. 8. The collapsible bed frame according to claim 7, wherein in the expanded configuration of the bed frame, the two connecting rods (11) of each elongated rod (1) are longitudinally aligned with each other, and the X-shaped support racks (2) and the at least one support rod (4) are fully extended. 9. The collapsible bed frame according to claim 7, wherein in the collapsed configuration of the bed frame, the connecting rods (11), the X-shaped support racks (2) and the at least one support rod (4) are folded inward and substantially parallel and adjacent to each other. 10. The collapsible bed frame according to claim 7, wherein the at least one support rod (4) first end is connected to a lower end of the at least one X-shaped support rack (2). 11. A collapsible bed frame, foldable between an expanded configuration and a collapsed configuration, the bed frame comprising: two elongated rods (1) each having two ends, each elongated rod (1) comprised of two connecting rods (11), the two connecting rods (11) being pivotally connected together with a connecting member (3) to form a pivotal connection, corresponding ends of each elongated rod (1) pivotally connected with an outer X-shaped support rack (2) respectively, an inner X-shaped support rack (2) attached to opposing connecting members (3) at a location between the connecting rods (11) and pivotable with respect to the connecting members (3), each X-shaped support rack defined by a pair of support legs that intersect adjacently at a predetermined area with respect to each other; andat least one single-piece support rod (4) having first and second ends, the at least one single-piece support rod first end pivotally connected to at least one X-shaped support rack (2) and the at least one single-piece support rod second end fixedly pivotally attached to at least one elongated rod (1) when the bed frame is in the expanded configuration and in the collapsed configuration. 12. The collapsible bed frame according to claim 11, wherein in the bed frame's expanded configuration, the two connecting rods (11) of each elongated rod (1) are longitudinally aligned with each other, and the X-shaped support racks (2) and the at least one single-piece support rod (4) are fully extended. 13. The collapsible bed frame according to claim 11, wherein in the bed frame's collapsed configuration, the connecting rods (11), X-shaped support racks (2) and the at least one single-piece support rod (4) are folded inward and substantially parallel and adjacent one another. 14. The collapsible bed frame according to claim 11, wherein the at least one single-piece support rod (4) first end is connected to a lower portion of the at least one X-shaped support rack (2). 15. The collapsible bed frame according to claim 14, wherein the at least one single-piece support rod (4) first end is connected to a lower end of the at least one X-shaped support rack (2).