Abstract: An adjustable bed includes a frame structure having a first frame, a second frame, and a pair of connection bars detachably connecting the first frame and the second frame to one another; a plurality of platforms having two or more back platforms disposed on the first frame and two or more lower limb platforms disposed on the second frame; and an adjustable assembly comprising two or more back lifting assemblies coupled with the first frame and two or more leg lifting assemblies coupled with the second frame for individually adjusting each of the two or more back platforms and the two or more lower limb platforms in desired positions.

Abstract: An adjustable bed includes a frame structure having a first frame, a second frame, and a pair of connection bars detachably connecting the first frame and the second frame to one another; a plurality of platforms disposed on the frame structure; and an adjustable assembly coupled with the frame structure for operably adjusting one or more of the plurality of platforms in desired positions.

Abstract: An adjustable bed includes a frame structure; an upper support bracket and a lower support bracket pivotally connected to the frame structure; a plurality of platforms disposed on the frame structure and supported by the upper support bracket and the lower support bracket without using hinging means; and an adjustable assembly coupled with the frame structure and the upper support bracket and the lower support bracket for operably adjusting one or more of the plurality of platforms in desired positions.

Abstract: An elastic base structure and a piece of upholstered furniture therewith. The elastic base structure includes a base frame comprising a pair of first support rods and a pair of second support rods connected to the pair of first support rod to form a square or rectangular structure; a plurality of serpentine springs; and a plurality of double-branched hook clips. Each serpentine spring has two oppose ends disconnectably connected to two double-branched hook clips that are in turn disconnectably connected to the pair of first support rods, respectively, such that the plurality of serpentine springs are parallel to each other.

Abstract: The lumbar support mechanism and an adjustable bed therewith. The lumbar support mechanism includes a lumbar support member; first, second, third and fourth support legs; a linkage member; and first and second lumbar support brackets attached onto the adjustable bed. Upper ends of the first and second support legs are pivotally connected to the lumbar support member, and lower ends of the first and second support legs are pivotally connected to the linkage member, respectively. Upper ends of the third and fourth support legs are pivotally connected to the first and second support legs, respectively, and lower ends of the third and fourth support legs are pivotally connected to the first and second lumbar support brackets, respectively. As such, a distance between the lumbar support member and the linkage member is changeable between minimal and maximal distances when the linkage member moves between first and second positions.

Abstract: An adjustable bed includes a frame structure having a back frame and a foot frame; a back lifting assembly comprising a back lifting bracket pivotally connected to the back frame, and a back lifting actuator pivotally connected between the back lifting bracket and the back frame for operably driving the back lifting bracket to pivotally move in an upward rotating direction or a downward rotating direction relative to the back frame; and a plurality of platforms comprising at least a head platform and a back platform hinged to the head platform supported by the back lifting bracket such that angles and positions of the head platform and the back platform are adjustable in accordance with the back lifting bracket.

Abstract: The lumbar support mechanism and an adjustable bed having the same. The lumbar support mechanism includes first and second lumbar lifting assemblies. Each lumbar lifting assembly has a fixing bracket, a first support leg, a second support leg, a bearing member, and a lifting support bracket. The first support leg is pivotally connected between the bearing member and the lifting support bracket. The second support leg is pivotally connected between the fixing bracket and the first support leg. A lumbar support member is connected to the lifting support brackets of the first and second lumbar lifting assemblies. A linkage member is pivotally connected to the bearing members of the first and second lumbar lifting assemblies such that the lumbar support member is operably movable between a retracted position and an ejected position when the linkage member moves between first and second positions.

Abstract: A foldable bed includes platforms, first and second support structures for supporting the platforms, and a pair of connection mechanisms for pivotally connecting the first and second support structures such that the first and second support structures are pivotally foldable relative to one another. The first support structure has a pair of first side rails transversely spaced and longitudinally aligned; an upper rail having two ends respectfully connected to the upper ends of the pair of first side rails; and a mounting support bar connected to the pair of first side rails and being parallel to the upper rail. The second support structure has a pair of second side rails transversely spaced and longitudinally aligned; and a lower rail having two ends respectfully connected to the lower ends of the pair of second side rails.

Abstract: An adjustable bed includes a frame structure comprising: a base structure having a base body and a back support member pivotally connected to the base body; and a bed frame slidably arranged on the base body of the base structure; a driving mechanism comprising a back lifting actuator having a first end and an opposite, second end pivotally connected to the base structure and the bed frame, respectively; and a plurality of platforms including a seat platform fixed to the bed frame and a back platform hinged to the seat platform and pivotally supported by the back support member, such that in operation the back lifting actuator drives the bed frame to slidably move on the base body of the base structure, which in turn drives the back platform to translationally and rotationally move in desired positions and angels relative to the base structure.

Abstract: An adjustable bed includes a frame structure having a first frame, a second frame, and a pair of connection bars detachably connecting the first frame and the second frame to one another; a plurality of platforms having two or more back platforms disposed on the first frame and two or more lower limb platforms disposed on the second frame; and an adjustable assembly comprising two or more back lifting assemblies coupled with the first frame and two or more leg lifting assemblies coupled with the second frame for individually adjusting each of the two or more back platforms and the two or more lower limb platforms in desired positions.

Abstract: An elastic base structure and a piece of upholstered furniture therewith. The elastic base structure includes a base frame comprising a pair of first support rods and a pair of second support rods connected to the pair of first support rod to form a square or rectangular structure; a plurality of serpentine springs; and a plurality of double-branched hook clips. Each serpentine spring has two oppose ends disconnectably connected to two double-branched hook clips that are in turn disconnectably connected to the pair of first support rods, respectively, such that the plurality of serpentine springs are parallel to each other.

Abstract: An adjustable bed includes a frame structure having a first frame, a second frame, and a pair of connection bars detachably connecting the first frame and the second frame to one another; a plurality of platforms disposed on the frame structure; and an adjustable assembly coupled with the frame structure for operably adjusting one or more of the plurality of platforms in desired positions.

Abstract: An adjustable bed includes a frame structure; an upper support bracket and a lower support bracket pivotally connected to the frame structure; a plurality of platforms disposed on the frame structure and supported by the upper support bracket and the lower support bracket without using hinging means; and an adjustable assembly coupled with the frame structure and the upper support bracket and the lower support bracket for operably adjusting one or more of the plurality of platforms in desired positions.

Abstract: A three section foldable bed includes a plurality of boards comprising an upper board, a middle board, and a lower board; a support assembly for supporting the plurality of boards, wherein the support assembly includes a first support structure for supporting the upper board, a second support structure for supporting the middle board, and a third support structure for supporting the lower board; a pair of first connection mechanisms for connecting the first support structure and the second support structure such that the first support structure and the second support structure are pivotally foldable relative to one another at the pair of first connection mechanisms; and a pair of second connection mechanisms for connecting the second support structure and the third support structure such that the second support structure and the third support structure are pivotally foldable relative to one another at the pair of second connection mechanisms.

Abstract: A foldable bed includes a plurality of boards comprising an upper board, a middle board, and a lower board; a support assembly for supporting the plurality of boards, wherein the support assembly includes a first support structure for supporting the upper board and the middle board, and a second support structure for supporting the lower board; and a pair of connection mechanisms for connecting the first support structure and the second support structure such that the first support structure and the second support structure are pivotally foldable relative to one another at the pair of connection mechanisms.

Abstract: The lumbar support mechanism and an adjustable bed having the same. The lumbar support mechanism includes first and second lumbar lifting assemblies. Each lumbar lifting assembly has a fixing bracket, a first support leg, a second support leg, a bearing member, and a lifting support bracket. The first support leg is pivotally connected between the bearing member and the lifting support bracket. The second support leg is pivotally connected between the fixing bracket and the first support leg. A lumbar support member is connected to the lifting support brackets of the first and second lumbar lifting assemblies. A linkage member is pivotally connected to the bearing members of the first and second lumbar lifting assemblies such that the lumbar support member is operably movable between a retracted position and an ejected position when the linkage member moves between first and second positions.