Arched shelf assembly

Abstract

An arched shelf assembly provides a pair of arched arms that carries multiple tiers of shelves and disperses forces associated with the load on the shelves. The assembly supports multiple tiers of tempered glass shelves in a stacked, spaced-apart relationship. The shelves are configured to carry a load. The arc shape of the assembly creates enhanced structural integrity by compressing stress forces from the load to the ground. The compression of these stress forces resolves forces into compressive stresses, thereby minimizing tensile stresses on the assembly. In essence, the arc works to transmit the stress forces to the ground. The assembly also pivotally articulates into a collapsed position for enhanced portability, collapsibility, disassembly, and assemblage. To enable hinged articulation, the assembly utilizes hinges, barrel hinges, and buckle hinges that enable hinged articulation of the support frame up to 90 and separation of the components of the assembly.

Claims

1. An arched shelf assembly for carrying a load on multiple tiers and dispersing forces associated with the load, the assembly comprising: a first leg, the first leg comprising a pair of first leg ends; a second leg, the second leg comprising a pair of second leg ends, the second leg and the first leg disposed in a generally spaced-apart, parallel relationship; a pair of arched arms, the pair of arched arms arranged in a generally spaced-apart, parallel relationship, the pair of arched arms defined by an arc portion having a generally arc shape, the arc shape configured to enhance structural integrity of the assembly, the arc portion defined by a base end and a shelf end, the pair of arched arms further defined by a base portion having a generally linear shape, the base portion comprising a first end and a second end, the first end of the base portion configured to fixedly join with the base end of the arc portion of the pair of arched arms, the first end and the second end of the base portion configured to pivotally join with the pair of first leg ends and the pair of second leg ends, whereby the pair of arched arms are configured to pivot between a lengthwise coplanar orientation and a generally perpendicular orientation relative to the first leg and the second leg; at least one tab, the at least one tab configured to extend from the arc portion of the pair of arched arms; a pair of vertical shafts, the pair of vertical shafts arranged in a generally spaced-apart, parallel relationship, the pair of vertical shafts defined by a first shaft end and a second shaft end, the first shaft end configured to fixedly join with the first leg, the pair of vertical shafts further defined by a hinged area disposed between the first shaft end and the second shaft end, the hinged area configured to enable pivoting articulation between the first shaft end and the second shaft end, whereby the pair of vertical shafts are configured to pivot between a traversal, coplanar orientation and a generally perpendicular orientation relative to the first leg and the second leg; at least one protrusion, the at least one protrusion configured to extend from the pair of vertical shafts; a support frame, the support frame defined by a pair of frame rods, a narrow end, and a wide end, the narrow end and the wide end configured to be generally perpendicular to the pair of frame rods, the narrow end configured to be generally shorter than the wide end, the narrow end further configured to pivotally join with the second shaft end of the pair of vertical shafts, the wide end configured to detachably attach to the shelf end of the arc portion for the pair of arched arms; at least one hinge, the at least one hinge defined by a first hinge side configured to pivotally join with a second hinge side, the at least one hinge configured to pivotally connect the hinged area of the pair of vertical shafts, the at least one hinge further configured to pivotally connect the narrow end of the support frame with the second shaft end of the pair of vertical shafts; at least one barrel hinge, the at least one barrel hinge defined by a first barrel side configured to pivotally join with a second barrel side, the at least one barrel hinge configured to pivotally connect the first end and the second end of the base portion with the pair of first leg ends and the pair of second leg ends; at least one buckle hinge, the at least one buckle hinge configured to pivotally connect the first shaft end with the second shaft end, the at least one buckle hinge further configured to selectively enable and restrict pivotal articulation between the first shaft end and the second shaft end, the at least one buckle hinge further configured to pivotally connect the pair of first leg ends with the base end of the arc portion of the pair of arched arms, the at least one buckle hinge further configured to selectively enable and restrict pivotal articulation between the pair of first leg ends and the base end of the arc portion of the pair of arched arms; a first shelf, the first shelf configured to detachably position on the support frame; a second shelf, the second shelf configured to detachably position on the at least one tab of the pair of arched arms and the at least one protrusion of the pair of vertical shafts; and a third shelf, the third shelf configured to detachably position on the base portion of the pair of arched arms.

2. The assembly of claim 1, further including at least one fastener, the at least one fastener configured to detachably attach the wide end of the support frame to the shelf end of the arc portion of the pair of arched arms.

3. The assembly of claim 1, wherein the at least one fastener comprises a screw knob.

4. The assembly of claim 1, wherein the first shaft end is configured to fixedly join an approximately central area of the first leg.

5. The assembly of claim 1, wherein the first shelf, the second shelf, and the third shelf comprise tempered glass.

6. The assembly of claim 1, further including a cross bar, the cross bar configured to extend across the pair of frame rods of the support frame, the cross bar further configured to enhance structural integrity of the support frame.

7. The assembly of claim 1, wherein the at least one buckle hinge enables pivoting up to ninety degrees.

8. The assembly of claim 1, wherein the at least one hinge enables pivoting up to ninety degrees.

9. The assembly of claim 1, wherein the lip of the at least one buckle hinge enables passage of a screw for fastening the lip to the assembly.

10. The assembly of claim 1, wherein the at least one buckle hinge is defined by a lip and a latching member.

11. The assembly of claim 10, wherein the latching member comprises a mounting panel, a lever, and a catch, the lever configured to pivotally engage the catch to the lip, wherein the lip and the latching member detachably fasten.

12. The assembly of claim 11, wherein the mounting panel of the latching member enables passage of a screw for fastening the mounting panel to the assembly.

13. The assembly of claim 12, wherein the lever of the latching member pivots on a fulcrum.

14. The assembly of claim 13, wherein the catch is generally square-shaped.

15. An arched shelf assembly for carrying a load on multiple tiers and dispersing forces associated with the load, the assembly comprising: a first leg, the first leg comprising a pair of first leg ends; a second leg, the second leg comprising a pair of second leg ends, the second leg and the first leg disposed in a generally spaced-apart, parallel relationship; a pair of arched arms, the pair of arched arms arranged in a generally spaced-apart, parallel relationship, the pair of arched arms defined by an arc portion having a generally arc shape, the arc shape configured to enhance structural integrity of the assembly, the arc portion defined by a base end and a shelf end, the pair of arched arms further defined by a base portion having a generally linear shape, the base portion comprising a first end and a second end, the first end of the base portion configured to fixedly join with the base end of the arc portion of the pair of arched arms, the first end and the second end of the base portion configured to pivotally join with the pair of first leg ends and the pair of second leg ends, whereby the pair of arched arms are configured to pivot between a lengthwise coplanar orientation and a generally perpendicular orientation relative to the first leg and the second leg; at least one tab, the at least one tab configured to extend from the arc portion of the pair of arched arms; a pair of vertical shafts, the pair of vertical shafts arranged in a generally spaced-apart, parallel relationship, the pair of vertical shafts defined by a first shaft end and a second shaft end, the first shaft end configured to fixedly join with the first leg, the pair of vertical shafts further defined by a hinged area disposed between the first shaft end and the second shaft end, the hinged area configured to enable pivoting articulation between the first shaft end and the second shaft end, whereby the pair of vertical shafts are configured to pivot between a traversal, coplanar orientation and a generally perpendicular orientation relative to the first leg and the second leg; at least one protrusion, the at least one protrusion configured to extend from the pair of vertical shafts; a support frame, the support frame defined by a pair of frame rods, a narrow end, and a wide end, the narrow end and the wide end configured to be generally perpendicular to the pair of frame rods, the narrow end configured to be generally shorter than the wide end, the narrow end further configured to pivotally join with the second shaft end of the pair of vertical shafts, the wide end configured to detachably attach to the shelf end of the arc portion for the pair of arched arms; at least one fastener, the at least one fastener configured to detachably attach the wide end of the support frame to the shelf end of the arc portion of the pair of arched arms; a cross bar, the cross bar configured to extend across the pair of frame rods of the support frame, the cross bar further configured to enhance structural integrity of the support frame; at least one hinge, the at least one hinge defined by a first hinge side configured to pivotally join with a second hinge side, the at least one hinge configured to pivotally connect the hinged area of the pair of vertical shafts, the at least one hinge further configured to pivotally connect the narrow end of the support frame with the second shaft end of the pair of vertical shafts; at least one barrel hinge, the at least one barrel hinge defined by a first barrel side configured to pivotally join with a second barrel side, the at least one barrel hinge configured to pivotally connect the first end and the second end of the base portion with the pair of first leg ends and the pair of second leg ends; at least one buckle hinge, the at least one buckle hinge configured to pivotally connect the first shaft end with the second shaft end, the at least one buckle hinge further configured to selectively enable and restrict pivotal articulation between the first shaft end and the second shaft end, the at least one buckle hinge further configured to pivotally connect the pair of first leg ends with the base end of the arc portion of the pair of arched arms, the at least one buckle hinge further configured to selectively enable and restrict pivotal articulation between the pair of first leg ends and the base end of the arc portion of the pair of arched arms; a first shelf, the first shelf configured to detachably position on the support frame; a second shelf, the second shelf configured to detachably position on the at least one tab of the pair of arched arms and the at least one protrusion of the pair of vertical shafts; and a third shelf, the third shelf configured to detachably position on the base portion of the pair of arched arms.

16. The assembly of claim 15, wherein the at least one fastener comprises a screw knob.

17. The assembly of claim 15, wherein the at least one buckle hinge is defined by a lip and a latching member.

18. The assembly of claim 15, wherein the first shelf, the second shelf, and the third shelf comprise tempered glass.

19. The assembly of claim 15, wherein the at least one hinge enables pivoting up to ninety degrees.

20. An arched shelf assembly for carrying a load on multiple tiers and dispersing forces associated with the load, the assembly comprising: a first leg, the first leg comprising a pair of first leg ends; a second leg, the second leg comprising a pair of second leg ends, the second leg and the first leg disposed in a generally spaced-apart, parallel relationship; a pair of arched arms, the pair of arched arms arranged in a generally spaced-apart, parallel relationship, the pair of arched arms defined by an arc portion having a generally arc shape, the arc portion defined by a base end and a shelf end, the pair of arched arms further defined by a base portion having a generally linear shape, the base portion comprising a first end and a second end, the first end of the base portion configured to fixedly join with the base end of the arc portion of the pair of arched arms, the first end and the second end of the base portion configured to pivotally join with the pair of first leg ends and the pair of second leg ends, whereby the pair of arched arms are configured to pivot between a lengthwise coplanar orientation and a generally perpendicular orientation relative to the first leg and the second leg; a pair of vertical shafts, the pair of vertical shafts arranged in a generally spaced-apart, parallel relationship, the pair of vertical shafts defined by a first shaft end and a second shaft end, the first shaft end configured to fixedly join with the first leg, the pair of vertical shafts further defined by a hinged area disposed between the first shaft end and the second shaft end, the hinged area configured to enable pivoting articulation between the first shaft end and the second shaft end, whereby the pair of vertical shafts are configured to pivot between a traversal, coplanar orientation and a generally perpendicular orientation relative to the first leg and the second leg; a support frame, the support frame defined by a pair of frame rods, a narrow end, and a wide end, the narrow end and the wide end configured to be generally perpendicular to the pair of frame rods, the narrow end configured to be generally shorter than the wide end, the narrow end further configured to pivotally join with the second shaft end of the pair of vertical shafts, the wide end configured to detachably attach to the shelf end of the arc portion for the pair of arched arms; a first shelf, the first shelf configured to detachably position on the support frame; a second shelf, the second shelf configured to detachably position between the arc portion of the pair of arched arms; and a third shelf, the third shelf configured to detachably position on the base portion of the pair of arched arms.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention will now be described, by way of example, with reference to the accompanying drawings, in which:

(2) FIG. 1 illustrates a top perspective view of an exemplary arched shelf assembly, in accordance with an embodiment of the present invention;

(3) FIG. 2 illustrates a bottom perspective view of the arched shelf assembly, in accordance with an embodiment of the present invention;

(4) FIG. 3 illustrates a perspective view of the arched shelf assembly with a first shelf, a second shelf, and a third shelf arranged in a tiered configuration, in accordance with an embodiment of the present invention;

(5) FIG. 4 illustrates a top view of the arched shelf assembly in a partially collapsed position, and at least one hinge for the pivotal articulation of the pair of vertical shafts, in accordance with an embodiment of the present invention;

(6) FIG. 5 illustrates a top view of the arched shelf assembly in a partially collapsed position, and at least one barrel hinge for the pivotal articulation of the pair of arched arms, in accordance with an embodiment of the present invention;

(7) FIGS. 6A, 6B, 6C, and 6D illustrate multiple views of an exemplary barrel hinge having a first barrel side and a second barrel side, where FIG. 6A is an elevated side view, FIG. 6B is a perspective view, FIG. 6C is a top view, and FIG. 6D is a lengthwise view, in accordance with an embodiment of the present invention;

(8) FIG. 7 illustrates a top view of the arched shelf assembly in a partially collapsed position, and at least one buckle hinge for the pivotal articulation of the pair of vertical shafts, in accordance with an embodiment of the present invention;

(9) FIGS. 8A and 8B illustrate a perspective view of the arched shelf assembly with the pair of vertical shafts pivotally articulating from a collapsed position to an expanded position, in accordance with an embodiment of the present invention;

(10) FIGS. 9A and 9B illustrate a perspective view of the arched shelf assembly with the pair of arched arms pivotally articulating from a collapsed position to an expanded position, in accordance with an embodiment of the present invention; and

(11) FIGS. 10A and 10B illustrate a perspective view of the arched shelf assembly with the support frame pivotally articulating from a collapsed position to an expanded position, and detachably attaching to the pair of arched arms with at least one fastener, in accordance with an embodiment of the present invention.

(12) Like reference numerals refer to like parts throughout the various views of the drawings.

DETAILED DESCRIPTION OF THE INVENTION

(13) The following detailed description is merely exemplary in nature and is not intended to limit the described embodiments or the application and uses of the described embodiments. As used herein, the word exemplary or illustrative means serving as an example, instance, or illustration. Any implementation described herein as exemplary or illustrative is not necessarily to be construed as preferred or advantageous over other implementations. All of the implementations described below are exemplary implementations provided to enable persons skilled in the art to make or use the embodiments of the disclosure and are not intended to limit the scope of the disclosure, which is defined by the claims. For purposes of description herein, the terms first, second, left, rear, right, front, vertical, horizontal, and derivatives thereof shall relate to the invention as oriented in FIG. 1. Furthermore, there is no intention to be bound by any expressed or implied theory presented in the preceding technical field, background, brief summary or the following detailed description. It is also to be understood that the specific devices and processes illustrated in the attached drawings, and described in the following specification, are simply exemplary embodiments of the inventive concepts defined in the appended claims. Hence, specific dimensions and other physical characteristics relating to the embodiments disclosed herein are not to be considered as limiting, unless the claims expressly state otherwise.

(14) At the outset, it should be clearly understood that like reference numerals are intended to identify the same structural elements, portions, or surfaces consistently throughout the several drawing figures, as may be further described or explained by the entire written specification of which this detailed description is an integral part. The drawings are intended to be read together with the specification and are to be construed as a portion of the entire written description of this invention as required by 35 U.S.C. 112.

(15) In one embodiment of the present invention presented in FIGS. 1-10B, an arched shelf assembly 100 provides multiple tiers of shelves 148, 150, 152 for carrying a load and a pair of arched arms 110a, 110b for dispersing forces associated with the load. In some embodiments, the arched shelf assembly 100, hereafter assembly 100, utilizes various hinges 142a, 144a, 146a to enable and restrict pivotal articulation for collapsing and expanding the assembly 100. Further, the assembly supports multiple tiers of shelves 148, 150, 152 in a stacked, spaced-apart relationship. The shelves 148, 150, 152 are configured to carry a load. The load may include, without limitation, books, a television, tools, plants, food, drink, pictures, computers, and any number of eclectic objects.

(16) Those skilled in the art will recognize that the assembly 100 is unique in that it is configured into an arc shape. The arc shape of the assembly 100 creates enhanced structural integrity by compressing stress forces from the load to the ground. The compression of these stress forces resolves forces into compressive stresses, thereby minimizing tensile stresses on the assembly. In essence, the arc works to transmit the stress forces to the ground. Also, the arc-shape is pronounced in the assembly 100, thereby presenting an aesthetic dcor.

(17) As illustrated in FIG. 1, the assembly 100 pivotally collapses for enhanced portability, collapsibility, disassembly, and assemblage. To enable this hinged articulation, the assembly 100 utilizes at least one hinge 144a-d, at least one barrel hinge 146a-d, and at least one buckle hinge 142a-d that enable hinged articulation of the assembly 100 up to 90, and also restrict the pivotal articulation to lock the assembly 100 into an expanded, operational position.

(18) Looking at FIG. 2, the assembly 100 may include elongated legs 102, 106, a pair of arched arms 110a, 110b, a pair of vertical shafts 124a, 124b, and a support frame 126. These components pivotally interconnect with a variety of hinges 142a, 144a, 146a to form the assembly 100. These components are configured to pivotally interconnect through at least one hinge 144a-d, at least one barrel hinge 146a-d, and at least one buckle hinge 142a-d for efficient manipulation of the assembly 100 between an expanded position and a collapsed position.

(19) It is significant to note that the use of a buckle hinge 142a is unique in that it enables both pivoting and partial detachment for the components of the assembly 100. Thus, the buckle hinge enables the legs 102, 106, a pair of arched arms 110a, 110b, a pair of vertical shafts 124a, 124b, and a support frame 126 to be pivoted up to 90. The buckle hinge 142a also uses a buckling mechanism, described below, to restrict pivotal articulation, and thus lock the assembly 100 into the expanded position. Furthermore, a first shelf 148, a second shelf 150, and a third shelf 152 are arranged in a tiered relationship to support a load. The shelves 148, 150, 152 are detachable from the assembly 100.

(20) In one possible embodiment shown in FIG. 3, the assembly 100 may have a generally trapezoidal shape when viewed from above, and a wide base for supporting the weight of a heavy load. Though, the assembly 100 may also take other shapes when viewed from above, such as, a rhombus, a cube, a pyramid, an oval, or a rectangle. Suitable materials for the assembly 100 may include, without limitation, steel, aluminum, metal, metal alloys, wood, fiberglass, rigid polymers, bamboo, and cardboard.

(21) In some embodiments, the assembly 100 comprises a first leg 102 having a pair of first leg ends 104a, 104b. A second leg 106 having a pair of second leg ends 108a, 108b is disposed in a generally spaced-apart, parallel relationship with the first leg 102. The legs 102, 106 are generally linear and sufficiently rigid to form a stable foundation for the assembly 100.

(22) As illustrated in FIG. 4, the assembly 100 comprises a pair of arched arms 110a, 110b. The pair of arched arms 110a, 110b are arranged in a generally spaced-apart, parallel relationship. The pair of arched arms 110a, 110b are defined by an arc portion 112a, 112b having a generally arc shape.

(23) The arc portion 112a, 112b is defined by a base end 114a, 114b and a shelf end 116a, 116b. The arched arms 110a, 110b are further defined by a base portion 118a, 118b having a generally linear shape. The base portion 118a, 118b comprises a first end 120a, 120b and a second end 122a, 122b. The arc shape of the arc portion 112a, 112b enables stress forces to be transmitted towards the base end 114a, 114b, so as to enhance the structural integrity of the assembly 100.

(24) As described above, the arc shape of the arched arms 110a, 110b is efficacious for supporting a load on the assembly 100. This is because instead of pushing straight down, the load on the assembly 100 is carried outward along the curve of the arc portion 112a, 112b to the base portion 118a, 118b at each end of the arched arms 110a, 110b. In essence, the weight is transferred to the base portion 118a, 118b at either end.

(25) In some embodiments, the first end 120a, 120b of the base portion 118a, 118b is configured to fixedly join with the base end 114a, 114b of the arc portion 112a, 112b of the pair of arched arms 110a, 110b. Also, the first end 120a, 120b and the second end 122a, 122b of the base portion 118a, 118b are configured to pivotally join with the pair of first leg 102 ends and the pair of second leg ends. In this manner, the pair of arched arms 110a, 110b pivot between a lengthwise coplanar orientation and a generally perpendicular orientation relative to the first leg 102 and the second leg. The lengthwise coplanar orientation forms the collapsed position. The generally perpendicular orientation forms the expanded position. Furthermore, at least one tab 168 extend from the arc portion 112a, 112b of the pair of arched arms 110a, 110b. The tab 168 is utilized to help support a second shelf 150, as described below.

(26) The assembly 100 further comprises a pair of vertical shafts 124a, 124b. The vertical shafts 124a, 124b are arranged in a generally spaced-apart, parallel relationship. The vertical shafts 124a, 124b are defined by a first shaft end 136a, 136b and a second shaft end 138a, 138b. The first shaft end 136a, 136b is configured to fixedly join with the first leg 102.

(27) In FIG. 5, the vertical shafts 124a, 124b are shown folded at a hinged area 154a, 154b between the first shaft end 136a, 136b and the second shaft end 138a, 138b. The hinged area 154a, 154b is disposed approximately centrally between the first shaft end 136a, 136b and the second shaft end 138a, 138b. The hinged area 154a, 154b is configured to enable pivoting articulation between the first shaft end 136a, 136b and the second shaft end 138a, 138b. In this manner, the vertical shafts 124a, 124b are configured to pivot between a traversal coplanar orientation and a generally perpendicular orientation relative to the first leg 102 and the second leg. The traversal coplanar orientation forms the collapsed position. The generally perpendicular orientation forms the expanded position.

(28) In one embodiment, at least one protrusion 140a, 140b extends from the pair of vertical shafts 124a, 124b. The at least one protrusion 140a, 140b helps support the second shelf 150, as described below. Thus, the second shelf 150 may rest on both the tab 168 of the arched arms 110a, 110b and the protrusion 140a, 140b of the vertical shafts 124a, 124b.

(29) In some embodiments, the assembly 100 comprises a support frame 126. The support frame 126 is defined by a pair of frame rods 128a, 128b, a narrow end 130, and a wide end 132 that fixedly join together to form a substantially A-shape. The narrow end 130 and the wide end 132 are configured to be generally perpendicular to the pair of frame rods 128a, 128b. The narrow end 130 is configured to be generally shorter than the wide end 132. In some embodiments, a cross bar 134 extends across the pair of frame rods 128a, 128b of the support frame 126. The cross bar 134 is configured to enhance structural integrity of the support frame 126.

(30) In one possible embodiment shown in FIG. 5, the narrow end 130 of the support frame 126 pivotally joins with the second shaft end 138a, 138b of the pair of vertical shafts 124a, 124b. The wide end 132 of the support frame 126 detachably attaches to the shelf end 116a, 116b of the arc portion 112a, 112b of the pair of arched arms 110a, 110b. As FIGS. 10A and 10B show, at least one fastener 158 detachably attaches the wide end 132 of the support frame 126 to the shelf end 116a, 116b of the arc portion 112a, 112b of the pair of arched arms 110a, 110b. The fastener 158 may include, without limitation, a screw knob, a screw, a nail, a magnet, a pin, and an adhesive.

(31) The assembly 100 utilizes a variety of hinges 142a, 144a, 146a to enable pivotal articulation, and thereby collapsibility and expansion of the assembly 100. In one embodiment at least one hinge 144a-d is used for pivotal interconnectivity. The at least one hinge 144a-d is defined by a first hinge side that is configured to pivotally join with a second hinge side. In one embodiment, the at least one hinge 144a-d pivotally connects the hinged area 154a, 154b of the pair of vertical shafts 124a, 124b. The at least one hinge 144a-d also pivotally connects the narrow end 130 of the support frame 126 with the second shaft end 138a, 138b of the pair of vertical shafts 124a, 124b.

(32) Looking at FIG. 5, at least one barrel hinge 146a-d is used for pivotal interconnectivity at the base portion 118a, 118b of the arched arms 110a, 110b. The barrel hinge 146a-d is defined by a first barrel side that pivotally joins with a second barrel side. The barrel hinge 146a-d is configured to pivotally connect the first end 120a, 120b and the second end 122a, 122b of the base portion 118a, 118b with the first leg ends 104a-b and the second leg ends 108a-b for the respective legs 102, 106. FIGS. 6A, 6B, 6C, and 6D illustrate various views of an exemplary barrel hinge having a first barrel side 156a and a second barrel side 156b, where FIG. 6A is an elevated side view, FIG. 6B is a perspective view, FIG. 6C is a top view, and FIG. 6D is a lengthwise view of the barrel hinge.

(33) As FIG. 7 illustrates, a buckle hinge 142a-d pivotally connects the first shaft end 136a, 136b with the second shaft end 138a, 138b of the vertical shafts 124a, 124b. The buckle hinge 142a-d selectively enables and restricts pivotal articulation between the first shaft end 136a, 136b and the second shaft end 138a, 138b. The buckle hinge 142a-d utilizes a buckling mechanism to enable this selective pivotal articulation.

(34) As shown in FIGS. 8A and 8B, the buckle hinge 142a-d pivotally connects the pair of first leg ends 104a, 104b with the base end 114a, 114b of the arched arms 110a, 110b. The buckle hinge 142a-d is further configured to selectively enable and restrict pivotal articulation between the pair of first leg 102 ends and the base end 114a, 114b of the arc portion 112a, 112b for the arched arms 110a, 110b.

(35) As FIG. 9A references, the buckle hinge 142a-d provides unique interconnectivity between the legs 102, 106 and arched arms 110a, 110b by enabling the pivotal articulation from a free position, and inhibiting the pivotal articulation from a locked position. Specifically, the buckle hinge 142a-d is used to fasten, connect, and pivot multiple sections of the assembly 100 relative to each other. In one embodiment, the buckle hinge 142a-d pivots up to 90.

(36) In one exemplary embodiment, the buckle hinge 142a-d pivotally connects the arched arms 110a, 110b with the legs 102, 106. In addition to the hinging function, the buckle hinge 142a-d is further configured to restrict pivotal articulation. The final expanded position of the assembly 100, which is shown in FIG. 9B, illustrates this. Thus, the assembly 100 can be locked into the expanded position for enhanced structural integrity, or unlocked into the collapsed position.

(37) This unique capacity of the buckle hinge 142a-d to both enable and restrict pivotal articulation is possible because of the buckling mechanism. Specifically, the buckle hinge 142a-d is defined by a lip 160 and a latching member. The latching member comprises a mounting panel 162, a lever 164, and a catch 166. The lever 164 is configured to pivotally engage the catch 166 to the lip 160, wherein the lip 160 and the latching member detach and fasten through selective manipulation of the lever 164.

(38) In operation of the buckle hinge 142a-d, the lever 164 is configured to pivot on the fulcrum selectively, to and from the lip 160, such that the catch 166 engages and disengages from the lip 160. Once the catch 166 clasps onto the generally protruding lip 160, a force is applied to the lever 164 away from the lip 160 to forcibly clamp the respective sections of the assembly 100 together. The direction of the lever 164 may then be reversed to disengage the catch 166 from the lip 160, and thereby enable separation of the respective sections of the assembly 100.

(39) In one exemplary embodiment illustrated in FIG. 8B, the lip 160 is attached to the pair of first leg ends 104a, 104b, and the latching member is fastened to the base end 114a, 114b of the arc portion 112a, 112b from the pair of arched arms 110a, 110b. The latching member pivotally fastens and detaches from the lip 160 in a secure but adjustable manner. The lever 164 of the latching member is configured to pivot on a fulcrum to pivotally move the catch 166 and engage the lip 160. In this manner, the lip 160 catches and holds the latching member for detachable fastening.

(40) Turning back to FIG. 3, the assembly 100 provides multiple, tiered surfaces for supporting a load. A first shelf detachably positions on at least one protrusion 140a, 140b extending from the support frame 126. A second shelf detachably positions on the at least one tab 168 of the arc portion 112a, 112b of the pair of arched arms 110a, 110b. A third shelf detachably positions on the base portion 118a, 118b of the pair of arched arms 110a, 110b. The shelves may be fabricated from tempered glass. Though other materials may be used.

(41) In operation, the assembly 100 is easily collapsed for stowage and portab 168 ility. A first step for collapsing involves unlocking the buckle hinge 142a-d to enable pivotal articulation of the arched arms 110a, 110b about the legs. The hinges and barrel hinges are also pivotally articulated at the arched arms 110a, 110b, vertical shafts 124a, 124b, and the support frame 126. These components may then be folded inwardly to create the collapsed, substantially flat configuration of the assembly 100. The assembly 100 is opened to an expanded positon by unfolding the arched arms 110a, 110b, vertical shafts 124a, 124b, and support frame 126, and locking the buckle hinge 142a-d.

(42) Thus, the assembly 100 is specially configured so that the arched arms 110a, 110b, vertical shafts 124a, 124b, and the support frame 126 are pivotally connected together with various hinges 142a, 144a, 146a and fasteners 158 so that they may be quickly assembled and also disassembled and returned to the collapsed position for further storage or shipment.

(43) Since many modifications, variations, and changes in detail can be made to the described preferred embodiments of the invention, it is intended that all matters in the foregoing description and shown in the accompanying drawings be interpreted as illustrative and not in a limiting sense. Thus, the scope of the invention should be determined by the appended claims and their legal equivalence.