Foldable frame and table having same

1. A frame comprising:

a mounting assembly comprising a first mounting member, a second mounting member and a third mounting member, wherein

each of the first and second mounting members comprises a first bar and a second bar;

proximal end portions of the first and second bars of the first mounting member are connected to or formed with each other by a first pivoting mechanism;

proximal end portions of the first and second bars of the second mounting member are connected to or formed with each other by a second pivoting mechanism; and

the third mounting member having an end portion coupled with the proximal end portions of the first bars of the first and second mounting members and another end portion coupled with the proximal end portions of the second bars of the first and second mounting members;

a first leg assembly and a second leg assembly, wherein the first leg assembly is coupled with distal end portions of the first bars of the first and second mounting members and rotatable with respect to the first bars, and the second leg assembly is coupled with distal end portions of the second bars of the first and second mounting members and rotatable with respect to the second bars;

a first supporting assembly and a second supporting assembly configured to control rotation of the first and second leg assemblies, wherein each of the first and second supporting assemblies comprises:

a first supporting member having an end portion pivotally coupled with the first or second leg assembly;

a slider coupled with the first supporting member and selectively movable along the first supporting member; and

one or more second supporting members, each having an end portion coupled with the slider;

a first fixing member and a second fixing member, wherein:

the first fixing member is pivotally connected with another end portion of each of the one or more second supporting members of the first supporting assembly, and configured to be coupled with a first portion of a tabletop; and

the second fixing member is pivotally connected with another end portion of each of the one or more second supporting members of the second supporting assembly, and configured to be coupled with a second portion of the tabletop;

a coupler comprising a base fixedly coupled with the third mounting member and a pivoting piece connected to or formed with the base;

a first connecting member formed or coupled with the first fixing member and pivotally coupled with the pivoting piece of the coupler; and

a second connecting member formed or coupled with the second fixing member and pivotally coupled with the pivoting piece of the coupler.

2. The frame of claim 1 , wherein the first portion of the tabletop is a first panel and the second portion of the tabletop is a second panel, wherein each of the first and second panels is a unitary piece.

3. The frame of claim 1 , wherein:

the first and second bars of the first mounting member are pivotally coupled with each other, and the first and second bars of the second mounting member are pivotally coupled with each other; and

the pivoting piece of the coupler is aligned with a pivoting axis along which the first and second bars of the first mounting member and the first and second bars of the second mounting member rotate.

4. The frame of claim 1 , wherein the pivoting piece comprises a first pivoting segment disposed at a first side of the base and a second pivoting segment disposed at a second side of the base, wherein the first supporting assembly is pivotally coupled with the first pivoting segment and the second supporting assembly is pivotally coupled with the second pivoting segment.

5. The frame of claim 1 , wherein the end portion of the first supporting member is pivotally coupled with a leg lateral bar of the first or second leg assembly.

6. The frame of claim 1 , wherein the first or second pivoting mechanism comprises:

a first coupling piece fixed at the proximal end of the first bar of the first or second mounting member and comprising a first slot elongated in a first direction;

a second coupling piece fixed at the proximal end of the second bar of the first or second mounting member and comprising a second slot, wherein the second slot has a closed bottom and an open top, and wherein the second slot has a length in the first direction that is shorter than the first slot of the first coupling piece in the first direction;

a third coupling piece comprising a third slot having a closed bottom and a closed top, wherein the third slot is elongated in the first direction;

a first rod disposed, cross-sectional-wise, in the third slot of the third coupling piece and movable along the third slot of the third coupling piece, wherein the first and second coupling pieces are pivotally coupled with each other by the first rod; and

a second rod integrally formed or coupled with a top portion of the third coupling piece, wherein the second rod is disposed, cross-sectional-wise, in the first slot of the first coupling piece and movable along the first slot of the first coupling piece;

wherein when the first and second coupling pieces are aligned with each other and the open top of the second slot of the second coupling piece faces downwardly, the third coupling piece together with the second rod moves by gravity to a first position where the second rod is disposed outside of the second slot of the second coupling piece, thereby allowing the first and second coupling pieces to rotate with respect to each other around the first rod; and

wherein when the first and second coupling pieces are aligned with each other and the open top of the second slot of the second coupling piece faces upwardly, the third coupling piece together with the second rod moves by gravity to a second position where the second rod is disposed in the second slot of the second coupling piece, thereby restricting the first and second coupling pieces from rotating with respect to each other around the first rod.

7. The frame of claim 6 , wherein the first rod is disposed adjacent to the bottom of the third slot of the third coupling piece at the first position, and adjacent to the top of the third slot of the third coupling piece at the second position.

8. The frame of claim 1 , further comprising:

a plurality of retainers, each disposed at or adjacent to an interior side of the first or second bar of the first or second mounting member and comprising:

a first wall fixedly coupled with the first or second bar of the first or second mounting member;

a second wall abutting a leg of the first or second leg assembly when the first or second leg assembly is folded to retain the first or second leg assembly; and

a groove formed between the first and second walls to allow the second wall to tilt toward the first wall, thereby allowing the leg of the first or second leg assembly to engage with the second wall when the first or second leg assembly is folding or to disengage from the second wall when the first or second leg assembly is unfolding.

9. The frame of claim 8 , wherein an exterior surface of the second wall is formed with an indentation that is shaped in accordance with a shape of the leg to accommodate a portion of the leg.

10. The frame of claim 1 , wherein the base of the coupler is fixedly coupled with a middle portion of the of the third mounting member.

11. A frame comprising:

a mounting assembly comprising a first mounting member, a second mounting member and a third mounting member, wherein

each of the first and second mounting members comprises a first bar and a second bar;

proximal end portions of the first and second bars of the first mounting member are connected to or formed with each other;

proximal end portions of the first and second bars of the second mounting member are connected to or formed with each other; and

the third mounting member having an end portion coupled with the proximal end portions of the first bars of the first and second mounting members and another end portion coupled with the proximal end portions of the second bars of the first and second mounting members;

a first leg assembly coupled with distal end portions of the first bars of the first and second mounting members and rotatable with respect to the first bars;

a second leg assembly coupled with distal end portions of the second bars of the first and second mounting members and rotatable with respect to the second bars;

one or more couplers, each comprising a base fixedly coupled with the third mounting member and a pivoting piece connected to or formed with the base, wherein each of the one or more couplers is spaced apart from (i) the proximal end portions of the first bars of the first and second mounting members, (ii) the proximal end portions of the second bars of the first and second mounting members, (iii) the end portion of the third mounting member that is coupled with the proximal end portions of the first bars of the first and second mounting members, and (iv) the another end portion of the third mounting member that is coupled with the proximal end portions of the second bars of the first and second mounting members;

a first supporting assembly and a second supporting assembly configured to control rotation of the first and second leg assemblies, wherein each of the first and second supporting assemblies comprises:

a first supporting member having an end portion coupled with the first or second leg assembly;

a slider coupled with the first supporting member and selectively movable along the first supporting member; and

one or more second supporting members, each having an end portion coupled with the slider and another end portion pivotally coupled with the pivoting piece of a coupler in the one or more couplers.

12. The frame of claim 11 , wherein:

the first and second bars of the first mounting member are pivotally coupled with each other by a first pivoting mechanism, and the first and second bars of the second mounting member are pivotally coupled with each other by a second pivoting mechanism; and

the pivoting piece of each of the one or more coupler is aligned with a pivoting axis along which the first and second bars of the first mounting member and the first and second bars of the second mounting member rotate.

13. The frame of claim 11 , wherein:

the one or more couplers on the third mounting member comprises a first coupler and a second coupler spaced apart from each other along a length direction of the third mounting member; and

each of the first and second supporting assemblies comprises two second supporting members, one coupled with the pivoting piece of the first coupler and the other coupled with the pivoting piece of the second coupler.

14. The frame of claim 13 , wherein the one or more couplers on the third mounting member further comprises a third coupler disposed between the first and second couplers, the frame further comprising:

a first connecting member pivotally coupled with the pivoting piece of the third coupler and configured to be coupled with a first portion of a tabletop; and

a second connecting member pivotally coupled with the pivoting piece of the third coupler and configured to be coupled with a second portion of a tabletop.

15. The frame of claim 11 , further comprising:

a plurality of retainers, each disposed at or adjacent to an interior side of the first or second bar of the first or second mounting member and comprising:

a first wall fixedly coupled with the first or second bar of the first or second mounting member;

a second wall abutting a leg of the first or second leg assembly when the first or second leg assembly is folded to retain the first or second leg assembly; and

a groove formed between the first and second walls to allow the second wall to tilt toward the first wall, thereby allowing the leg of the first or second leg assembly to engage with the second wall when the first or second leg assembly is folding or to disengage from the second wall when the first or second leg assembly is unfolding.

16. The frame of claim 12 , wherein the first or second pivoting mechanism comprises:

a first coupling piece fixed at the proximal end of the first bar of the first or second mounting member and comprising a first slot elongated in a first direction;

a second coupling piece fixed at the proximal end of the second bar of the first or second mounting member and comprising a second slot, wherein the second slot has a closed bottom and an open top, and wherein the second slot has a length in the first direction that is shorter than the first slot of the first coupling piece in the first direction;

a third coupling piece comprising a third slot having a closed bottom and a closed top, wherein the third slot is elongated in the first direction;

a first rod disposed, cross-sectional-wise, in the third slot of the third coupling piece and movable along the third slot of the third coupling piece, wherein the first and second coupling pieces are pivotally coupled with each other by the first rod; and

a second rod integrally formed or coupled with a top portion of the third coupling piece, wherein the second rod is disposed, cross-sectional-wise, in the first slot of the first coupling piece and movable along the first slot of the first coupling piece;

wherein when the first and second coupling pieces are aligned with each other and the open top of the second slot of the second coupling piece faces downwardly, the third coupling piece together with the second rod moves by gravity to a first position where the second rod is disposed outside of the second slot of the second coupling piece, thereby allowing the first and second coupling pieces to rotate with respect to each other around the first rod; and

wherein when the first and second coupling pieces are aligned with each other and the open top of the second slot of the second coupling piece faces upwardly, the third coupling piece together with the second rod moves by gravity to a second position where the second rod is disposed in the second slot of the second coupling piece, thereby restricting the first and second coupling pieces from rotating with respect to each other around the first rod.

17. A frame comprising:

a first mounting member and a second mounting member spaced apart from each other, each comprising a first bar and a second bar, wherein proximal end portions of the first and second bars of the first mounting member are connected to or formed with each other, and proximal end portions of the first and second bars of the second mounting member are connected to or formed with each other;

a first leg assembly coupled with distal end portions of the first bars of the first and second mounting members and rotatable with respect to the first bars;

a second leg assembly coupled with distal end portions of the second bars of the first and second mounting members and rotatable with respect to the second bars;

a plurality of retainers, each disposed at or adjacent to an interior side of the first or second bar of the first or second mounting member and comprising:

a first wall fixedly coupled with the first or second bar of the first or second mounting member, wherein the first wall is disposed at or adjacent to the first or second bar of the first or second mounting member and abuts the first or second bar of the first or second mounting member;

a second wall abutting a leg of the first or second leg assembly when the first or second leg assembly is folded to retain the first or second leg assembly; and

a groove formed between the first and second walls to allow the second wall to tilt toward the first wall, thereby allowing the leg of the first or second leg assembly to engage with the second wall when the first or second leg assembly is folding or to disengage from the second wall when the first or second leg assembly is unfolding.

18. The frame of claim 17 , wherein the first and second bars of the first mounting member are pivotally coupled with each other, and the first and second bars of the second mounting member are pivotally coupled with each other.

19. The frame of claim 17 , wherein an exterior surface of the second wall is formed with an indentation shaped in accordance with the leg to accommodate a portion of the leg.

20. The frame of claim 17 , wherein the second wall is formed with a through hole to allow a fastener to pass through and fasten the first wall on the first or second bar of the first or second mounting bar.