ORIGAMI-BASED FOLDABLE FURNITURE ASSEMBLY

Abstract

A foldable origami-shaped furniture assembly includes floor panels including a first floor panel and a second floor panel. The first and second floor panels are pivotally moveable between a folded position and a deployed position. A table includes a first member and a second member. The first and second members are pivotally moveable between a folded position and a deployed position. A plurality of chairs, each chair is adapted to be in a folded state and in an expanded state. A cable that passes through the table and the chairs such that the cable is passively pulled when the first and second floor panels become coplanar and the first and second members become coplanar. Each chair is expanded with a front leg of the leg sliding along a channel for expanding the chair. A plurality of legs support the table in the deployed position.

Claims

1. A foldable table and chair assembly comprising: a first floor panel and a second floor panel, both deployable in a coplanar alignment in the deployed position of the assembly; a table deployed between a first pair of chairs and a second pair of chairs, positioned on opposite sides of the table; said table including a first rigid pivotal rectangular member and a second rigid pivotal rectangular member pivotally connected to each other; said table supported by a first pair of legs and a second pair of legs, with foldable panels associated with each leg for providing additional support to the table; a sliding channel integrated to each rigid pivotal rectangular member, allowing the legs to slide for folding and unfolding the table; a cable pulling mechanism with a cable extending through the floor panels, the table, and the pairs of the chairs enabling passive expansion of the assembly by passive pulling of the cable, when the floor panels move away from each other.

2. The foldable table and chair assembly of claim 1, wherein the floor panel has channel for sliding a front leg of a chair; the chair comprising a back leg, a front leg, a backrest, an armrest, a sliding connection member, and a seat; said sliding connection member adapted to slide along a slit in the back leg, with a hinge pivotally supporting the backrest and the back leg, and the seat hingedly coupled to the sliding connection member and the front leg; wherein pulling the front leg away from the back leg causes the sliding connection member to move along the slit, moving the seat to a substantially horizontal position, and further pulling the front leg enables the sliding connection member to reach the top end of the slit, at which point the hinge pivotally supports the backrest and the back leg, and the seat remains substantially horizontal.

3. A furniture assembly comprising: a first floor panel and a second floor panel, the first floor panel and the second floor panel are in coplanar alignment in a deployed position and the first floor panel and the second floor panel press against each other in a folded position; an expendable table having a first rigid member and a second rigid member, the first rigid member and the second rigid member are in coplanar alignment when expanded and the press against each other when folded; a first pair of chairs disposed in the first floor panel; a second pair of chairs disposed in the second floor panel; each chair of the first pair of chairs and the second pair of chairs is adapted to transition between an expanded position and a folded position, wherein a front leg of the chair slides along a channel disposed in the corresponding floor panel to expand the chair; and a cable adapted to passively pulled to expand the table, the first pair of chairs and the second pair of chairs.

4. The furniture assembly of claim 2, wherein the table has a first pair of legs, a second pair of legs, each leg of the first pair of legs and the second pair of legs is adapted to slide along a first channel disposed in a rigid member of the table and along a second channel disposed in a floor panel.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Illustrative embodiments of the present invention are described herein with reference to the accompanying drawings, in which:

[0025] FIG. 1 illustrates the foldable table and chair set assembly of the present invention in a deployed position, in accordance with embodiments of the invention;

[0026] FIG. 2 illustrates a partial side perspective view of the foldable table and chair set assembly of the present invention in the deployed position, in accordance with embodiments of the invention;

[0027] FIG. 3 illustrates an exploded view of the table used in the foldable table and chair set assembly of the present invention in accordance with embodiments of the invention;

[0028] FIG. 4 illustrates a close view of the fastening and sliding mechanism of the table members, in accordance with embodiments of the invention;

[0029] FIGS. 5a-5d illustrate different steps used for deploying the foldable table and chair set assembly of the present invention, in accordance with embodiments of the invention;

[0030] FIG. 5e illustrates a perspective view showing cable passing through the channels of the floor panels in accordance with embodiments of the invention;

[0031] FIG. 6a-6c illustrate different steps used for expanding a chair, in accordance with embodiments of the invention;

[0032] FIG. 7 illustrates the foldable table and chair set assembly of the present invention in a folded position, in accordance with embodiments of the invention;

[0033] FIG. 8 illustrates the A-A cross-sectional view of the floor panel, in accordance with embodiments of the invention;

[0034] FIG. 9a illustrates a chair in transition from a folded position to the expanded position, in accordance with embodiments of the invention; and

[0035] FIG. 9b illustrates a partial perspective view showing the hinged connection of the leg table in accordance with embodiments of the invention.

DETAILED DESCRIPTION

[0036] For a further understanding of the nature and function of the embodiments, reference should be made to the following detailed description. Detailed descriptions of the embodiments are provided herein, as well as, the best mode of carrying out and employing the present invention. It will be readily appreciated that the embodiments are well adapted to carry out and obtain the ends and features mentioned as well as those inherent herein. It is to be understood, however, that the present invention may be embodied in various forms. Therefore, persons of ordinary skill in the art will realize that the following disclosure is illustrative only and not in any way limiting, as the specific details disclosed herein provide a basis for the claims and a representative basis for teaching to employ the present invention in virtually any appropriately detailed system, structure or manner. It should be understood that the devices, materials, methods, procedures, and techniques described herein are presently representative of various embodiments. Other embodiments of the disclosure will readily suggest themselves to such skilled persons having the benefit of this disclosure.

[0037] Reference will now be made in detail to the present preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numerals are used in the drawings and the description to refer to the same or like parts.

[0038] Referring initially to FIGS. 1-9b, the basic constructional details and principles of operation of embodiments of a foldable table and chair assembly 100 are provided.

[0039] As illustrated in FIG. 1, in a preferred embodiment, the foldable table and chair assembly 100 includes a first floor panel 102 and a second floor panel 104. Both the first floor panel 102 and the second floor panel 104 are generally rectangular or rectangular. The first floor panel 102 and the second floor panel 104 are in a deployed position (Arrow A, FIG. 1) for unfolding the table and chairs set. The first floor panel 102 and the second floor panel 104 are symmetrical and substantially similar in size. In the deployed position, the first floor panel 102 and the second floor panel 104 are in coplanar alignment and can be placed on a floor.

[0040] In the deployed position of the assembly 100, a table 106 is deployed in an extended position between a first pair of chairs 108,110 and a second pair of chairs 112,114. The first pair of chairs 108,110 and the second pair of chairs 112,114 are positioned on opposite sides of the table 106.

[0041] Referring to FIGS. 1, 2 and 3, the table 106 includes a first rigid pivotal rectangular member 116 and a second rigid pivotal rectangular member 118. The pivotal members 116,118 are pivotally connected along a common edge 120. The table 106 is supported by a first pair of legs 122,124 and a second pair of legs 126,128. For providing additional support to the rigid members 116,118 of the table 106 in the deployed position, a foldable panel 130 is associated with each leg of the table 106. The foldable panel 130 is adapted to transition from an uninstalled position wherein the foldable panel 130 is accommodated in a groove 132 positioned on the leg (exemplary shown in the leg 122) to an installed position wherein the foldable panel 130 is secured to a pin 134 positioned on the rear surface 136 of the table 106.

[0042] Referring now to FIG. 3, the rigid table member 116 includes a channel 138 which is aligned and positioned between the opposite accommodating members 140,142 disposed along the rigid table member 118. The piston rod 144 passes through the channel 138 and the members 140,142 and is secured to the fastening members 146,148 at the opposite ends. The fastening members 146,148 also secure to the legs frame 150 which includes the pair of legs 122,124 and other pair of legs 126,128 along with a legs connecting horizontal member 152. Different mechanical fasteners such as bolts can be used for securing the piston rod 144 and the legs frame 150.

[0043] Referring now to FIGS. 1, 2 and 4, a close view of the fastening member for maintaining folding and unfolding of the table 106 in accordance with one embodiment of the present invention. The rigid table member 116 includes an integrated sliding channel 154 and the rigid table member 118 includes a corresponding sliding channel 156. The top end 158 of the leg 124 slides along the channel 154 such that the bottom end 160 of the leg 124 is hinged at the end edge 182 of the channel 162 disposed on the floor panel 104. Similarly, the top end 164 of the leg 122 slides along the channel 156 such that the bottom end 166 of the leg 122 slides along the channel 168 disposed on the floor panel 102. It will be apparent to a person skilled in the art that similar sliding mechanism is deployed for the other pair of legs.

[0044] Referring now to FIGS. 1 and 5a-5d, for deploying the assembly 100, a cable pulling mechanism is included in the assembly 100. A cable 170 is positioned in the assembly 100 and passes through the floor panels 102,104. The cable 170 extends through the legs connecting horizontal member 152 wherein the cable 170 is pulled passively to expand the table and chair set assembly 100. As illustrated in FIGS. 5b and 5c, when the floor panels 102,104 move away from each other to transition to become coplanar, the chain 170 is passively pulled as illustrated in FIG. 5d. While the chain 170 is pulled, the top ends 158,164 slide along the channels 154,156 respectively. Similarly, the bottom ends 160,166 also slide along the floor panels to expand the table.

[0045] As illustrated in FIGS. 6a-6c and 9a, the chain 170 is extends up to the cable connection point 184 positioned at the end of the movable leg of each chair (such as point 184 of the leg 604 of the chair 112).

[0046] When the assembly 100 expands, the cable 170 becomes vertical to provide further support to the table 106. Also, when the floor panels 102,104 expand, the chairs also expand from the respective housings. It will be apparent to a person skilled in the art that in the side views FIGS. 5a-5d, only two chairs 108,112 are visible. The chairs automatically expand to transition into expanded position as illustrated in FIGS. 1 and 5d. The passive cable pulling extends the floor panels 102,104 and height of the cable 170 increases from H0 (FIG. 5a) to H1 (FIG. 5d), making the chair legs move forward to get the chair expanded.

[0047] Referring to FIG. 5e, the channels 162,168 are used for accommodating the chain 170. The channel 162 includes a cable guiding wheel 172 and a cable connection point 174. The cable is guided along the channel 162 using the cable guiding wheel 172 and the cable connection point 174. More specifically, during unfolding of the assembly 100, the cable 170 slides against the cable guiding wheel 172 and pull the chair leg 604 out. Similarly, the channel 168 includes a cable guiding wheel 176 and a cable connection point 178. The cable 170 slides against the cable guiding wheel 176 and the cable connection point 178 and pull the leg 180. Upon the full deployment of floor panels 104,102, the chair legs 604,180 are pulled out to expand the chairs 112,108 passively.

[0048] Referring now to FIGS. 6a-6c and 9a, passive deployment of the foldable chair is disclosed. The folding structure and mechanism of all the four chairs is the same. As illustrated, the back leg 602 of the chair 112 is fixed at the bottom end thereof. The front leg 604 is adjustable and can be pulled along the channel 606 disposed in the floor panel. Each chair has an independent channel disposed in the for panel for expanding and collapsing the chairs.

[0049] The chair 112 includes a backrest 608, an armrest 610, sliding connection member 612 and a seat 614. The sliding connection member 612 is adapted to slide along a slit 616 disposed in the back leg 602. When the front leg 604 is pulled away from the back leg 602, the sliding connection member 612 moves up along the slit 616 to move the seat 614 to a substantially horizontal position. The armrest 610 extends from the backrest 608 to the top end of the back leg 602.

[0050] As illustrated in FIG. 6c, when front leg 604 is pulled completely, the sliding connection member 612 reaches the top end of the slit 616 and the hinge 618 pivotally supports the backrest 608 and the back leg 602. The seat 614 is also hingedly coupled to the sliding connection member 612 and the front leg 604.

[0051] FIG. 7 illustrates the table and chair set assembly 100 in a folded position, in accordance with one embodiment of the present invention. The panels 102,104 adhere to each other and push against each other in the folded position (Arrow B). The channel 606 of each individual chair is disposed in the panels. More specifically, the channels for the chairs 108,110 are disposed in the floor panel 102 and the channels for the chairs 112,114 are disposed in the floor panel 104. The rigid table 116,118 also push against each other with the cable 170 is positioned in a retractable position.

[0052] FIG. 8 illustrates A-A cross-sectional view of the assembly 100 in accordance with one embodiment of the present invention. The cable 170 passes through the table 106 and through the channel 606 of the chairs allowing the table 106 and the chairs to expand passively without any manual effort.

[0053] Referring to FIG. 9b, the bottom end 160 of the leg 124 is hinged at the end edge 182 of the channel 162. Similarly, the bottom end of all the other legs is hinged at the corresponding end edge of the respective channels. The edge or slot 182 is designed to prevent the leg 124 from moving and sliding.

[0054] Except as may be expressly otherwise indicated, the article a or an if and as used herein is not intended to limit, and should not be construed as limiting, the description or a claim to a single element to which the article refers. Rather, the article a or an if and as used herein is intended to cover one or more such elements, unless the text expressly indicates otherwise.

[0055] Various modifications and additions can be made to the exemplary embodiments discussed without departing from the scope of the present invention. While the embodiments described above refer to particular features, the scope of this invention also includes embodiments having different combinations of features and embodiments that do not include all of the described features. Accordingly, the scope of the present invention is intended to embrace all such alternatives, modifications, and variations as fall within the scope of the claims, together with all equivalents thereof.

[0056] What has been described above includes examples of the claimed subject matter. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the claimed subject matter, but one of ordinary skill in the art may recognize that many further combinations and permutations of the claimed subject matter are possible. Accordingly, the claimed subject matter is intended to embrace all such alterations, modifications and variations that fall within the spirit and scope of the appended claims. Furthermore, to the extent that the term includes is used in either the detailed description or the claims, such term is intended to be inclusive in a manner similar to the term comprising as comprising is interpreted when employed as a transitional word in a claim.

[0057] This invention is susceptible to considerable variation within the spirit and scope of the appended claims.