Ready-to-assemble articles of furniture

Information

  • Patent Grant
  • 6807912
  • Patent Number
    6,807,912
  • Date Filed
    Friday, July 19, 2002
    21 years ago
  • Date Issued
    Tuesday, October 26, 2004
    19 years ago
  • Inventors
  • Examiners
    • Chen; Jose V.
    Agents
    • Maginot, Moore & Beck
Abstract
A system of ready-to assemble (RTA) furniture includes rectangular and circular tables. The tables include a base structure that is formed from several panels and/or spars having an interlocking slot engagement. The base structure defines a number of upper edges that form a support surface for the tabletop. At least some of the edges include a top-locking flange that overhangs a portion of the edge to define a gap therebetween. The tabletop is formed from at least two panels, with at least one of the panels configured for a tight-fit or press-fit engagement within a gap at a top-locking flange to hold the panel in position on the support surface. The panels include complementary inboard edges so that the tabletop panels can be juxtaposed to form a complete tabletop. The RTA furniture system also includes a bed that includes a box-like base structure with slotted side panels. A pair of substantially identically formed end panels can be slid into the slots in the side panels and moved to respective ends of the slots. A pair of center panels extend through a slot in a corresponding side panel for juxtaposition with each other and with the separated end panels. The end panels and center panels can form an interlocking juxtaposition at their respective side edges.
Description




BACKGROUND OF THE INVENTION




The present invention relates generally to articles of furniture. More specifically, the invention concerns furniture that is “ready-to-assemble” or knock-down.




Knock-down or ready-to-assemble furniture has long been a welcome substitute for the traditional, one-piece, articles of furniture. Ready-to-assemble, or RTA, furniture is significantly cheaper than its more formal counterpart, which makes it a viable option for the college student furnishing a dorm room or a first-time apartment dweller or home buyer. Moreover, RTA furniture is popular with children because of the wide range of configurations that can be achieved with this type of furniture.




RTA furniture is also popular with parents because it represents an affordable alternative for furnishing a child's room or recreation or TV room that is subject to abnormal wear and tear. It is well-known that children, and particularly teenagers and young adults, can be extremely hard on furniture. Rather than spend a large amount of money on traditional furniture that will have its ordinary useful life cut short, many parents prefer to furnish with cheaper articles of furniture, such as RTA furniture. While the cheaper furniture may have a shorter life, the much lower cost makes periodic replacement preferable.




Knock-down or RTA furniture has been around for decades. Most prior RTA furniture relies upon interlocking notches and maintaining a tight fit between the spliced notches to keep the article of furniture solid. Of course, over time, the notches would wear and the fit between the components would become so sloppy as to render the article nearly unusable.




In addition, most prior RTA furniture has required specific sets of components, configured to generate a specific type of furniture. Thus, if a consumer wanted a chair, it was necessary to obtain a chair kit, and if a sofa was desired, a sofa kit was required. Knock-down furniture of this type does not take advantage of one possible benefit of RTA furniture, namely the ability to instantly convert one article to another article using many of the same components.




There remains a need for RTA furniture that is both inexpensive and versatile. The furniture must be able to achieve solid construction and to maintain its integrity over long periods of usage. In addition, the RTA furniture must have a desirable, and sometimes fun, appearance.











DESCRIPTION OF THE DRAWINGS




These needs are met by a novel RTA furniture array that is reflected in the following written description together with the accompanying figures.





FIG. 1

is a perspective view of a ready-to-assemble (RTA) long table in accordance with one embodiment of the present invention.





FIGS. 2



a-d


are perspective, end, side and top elevational views of a short table similar to the table illustrated in FIG.


1


.





FIGS. 3



a-d


are sequential views of the assembly of the RTA table shown in

FIGS. 2



a-d.







FIG. 4

is a perspective view of an RTA table according to another embodiment of the invention.





FIGS. 5



a-d


are perspective, end, side and top elevational views of an RTA round table in accordance with a further embodiment of the invention.





FIGS. 6



a-i


are sequential views of the assembly of the RTA round table shown in

FIGS. 5



a-d.







FIGS. 7



a-d


are perspective, end, side and top elevational views of an RTA bed in accordance with a further embodiment of the invention.





FIG. 8

is a side elevational view of a side panel for use with the RTA bed shown in

FIGS. 7



a-d.







FIG. 9

is a top elevational view of an end support panel for use with the RTA bed shown in

FIGS. 7



a-d.







FIG. 10

is a top elevational view of a center support panel for use with the RTA bed shown in

FIGS. 7



a-d.







FIGS. 11



a-d


are perspective, end, side and top elevational views of an RTA bed in accordance with an additional embodiment of the invention.





FIG. 12

is a top elevational view of a locking member for use with the bed shown in

FIGS. 11



a-d.













DESCRIPTION OF THE PREFERRED EMBODIMENTS




For the purposes of promoting an understanding of the principles of the invention, reference will now be made to the embodiments illustrated in the drawings and described in the following written specification. It is understood that no limitation to the scope of the invention is thereby intended. It is further understood that the present invention includes any alterations and modifications to the illustrated embodiments and includes further applications of the principles of the invention as would normally occur to one skilled in the art to which this invention pertains.




In accordance with certain embodiments of the invention, a ready-to assemble (RTA) furniture system can include a long table


10


, as shown in

FIG. 1

, and a short table


12


, as depicted in

FIGS. 2



a-d


. The two tables are substantially similar in construction, except that the overall dimensions of the various components can differ between the tables. For instance, the two tables include a center panel or spar


14


(

FIG. 2



a


), a pair of end panels


22


and


26


, and a pair of tabletop panels


34


,


40


. Each of these components can be differently sized and shaped between the two tables


10


and


12


. Nevertheless, both tables are assembled in the same manner, as described below.




Referring to

FIGS. 2



a-d


and

FIGS. 3



a-d


that depict assembly steps for the table


12


, it can be seen that the center spar


14


defines an upward slot


15


at one end and a downward slot


16


at its opposite end. The support edge


19


of the spar


14


terminates at its ends in overlapping top locking flanges


17


. The purpose of the flanges will be revealed below.




A pair of end panels


22


and


26


connect with the center spar to provide a base structure that can remain free-standing on a floor. The end panel


22


includes a downward slot


23


that mates with the upward slot


15


of the center spar. Likewise, the end panel


26


includes an upward slot


27


that interconnects with the downward slot


16


of the spar. As shown in

FIG. 3



a


, the two end panels


22


,


26


are engaged to the spar by sliding an end panel into a corresponding slot of the spar.




The end panel


22


defines a support edge


24


that will eventually support a portion of the tabletop. The other end panel


26


also includes a support edge


30


; however, unlike the end panel


22


, the panel


26


defines top locking flanges


28


at its opposite ends. These flanges


28


can be constructed like the flanges


17


on the center spar.




Once the center


14


and end panels


22


,


26


have been assembled, a first tabletop panel


34


can be positioned as shown in

FIG. 3



b


. The first panel


34


includes an end edge that slides between the support edge


19


and one locking flange


17


of the enter spar. The side edges


36


of the first panel also slide between the support edge


30


and locking flanges


28


in a similar manner. Preferably, the flanges


17


and


28


combine with the corresponding support edges


19


,


24


to produce a tight fit for the first tabletop panel


34


. The resulting fit can even be a press-fit engagement, requiring a stiff push to press the panel into the flanges


17


and


28


.




As shown in

FIG. 3



b


, the first tabletop panel defines an end cut-out


38


at the end opposite the end edge


35


. In the preferred embodiment, it has been found that a triangular shaped cut-out simplifies the assembly of the RTA table


12


. The first panel also defines a locking slot


39


at the free vertices of the end cut-out


38


.




Looking now at

FIG. 3



c


, a complete tabletop is achieved by the addition of a second tabletop panel


40


. The second panel has a complementary shaped edge


42


that fits snuggly within the end cut-out


38


of the first panel when the two panels are juxtaposed, as depicted in

FIG. 2



a


. The second panel


40


also defines a locking slot


44


at opposite sides of its end edge


41


. When the second panel is in its final position, as shown in

FIGS. 2



a


and


3




d


, the end edge


41


is disposed within a top locking flange


17


of the center spar


14


. Again, the locking flange


17


is configured so that a tight fit, or a press-fit, exists between the center spar and the second tabletop panel.




While the resulting construction can be sufficient to hold the two tabletop panels


34


and


40


in place, additional security against accidental dislodgement can be provided by way of the locking slots


39


and


44


in the two panels. These locking slots combine to form a combined slot


45


at opposite corners at one end of the resulting tabletop. A pair of locking pins


47


can be provided that are pressed into the combined slot to thereby lock the two panels together at these corners. Preferably, the locking pins


47


can have a corner tip so that the pins blend smoothly with the corner of the tabletop.




As can be appreciated from the assembly steps shown in

FIGS. 3



a-d


, construction of the RTA table


12


is very easy. The table can be just as easily disassembled by removing the locking pins


47


and applying an upward force to the underside of either of the tabletop panels


34


or


40


. The panel can be pushed until it clears the thickness of the other panel, at which time the panel can be slid toward the opposite end of the table to free it from the top locking flanges. Preferably, the second tabletop panel


40


is the last to be inserted and the first to be removed in the assembly and disassembly of the table


12


.




The top locking concept incorporated into the tables


10


and


12


can be implemented in a variety of alternative furniture configurations. For instance, the concepts can be applied to a table


50


constructed as shown in FIG.


4


. With this table, a pair of crossed panels or spars


52


and


53


are interconnected using the mating slot approach described above. The crossed spars each include top locking flanges


55


at their ends. For added stability, support panels/spars


57


can be added to span between the crossed spars, preferably across the width of the resulting table


50


. Again, an interlocking slot construction can be utilized for ready assembly of the support spars


57


to the crossed spars


52


,


53


.




In this embodiment, the tabletop is formed by four commonly shaped panels


60




a-d


juxtaposed to each other. The panels are constructed to rest on the edges of the spars. In addition, the panels


60




a-d


are lodged within a locking flange, in a manner similar to the table


12


discussed above. In order to preserve the integrity of the assembled tabletop, the locking flanges are preferably located at the corners of the table. Consequently, each of the commonly shaped panels


60




a-d


is in the shape of a triangle. In some embodiments, all of the panels can be identical equilateral triangles. In order to achieve a rectangular shaped table, such as the table


50


in

FIG. 4

, opposing panels


60




a


and


60




c


can be obtuse, while opposing intermediate panels


60




b


,


60




d


can be acute triangles. As illustrated in

FIG. 4

, the corner junction between adjacent panels falls within a corresponding top locking flange


55


.




A further embodiment of the RTA furniture of the present invention is the round table


65


depicted in

FIGS. 5



a-d


, and in the assembly drawings of

FIGS. 6



a-i


. As best shown in the assembly drawings, the table


65


includes a cross panel or spar


67


that defines an upward spar slot


68


and a pair of support spar slots


69


at its upper support edge


72


. The opposite ends of the cross spar


67


each define a top locking flange


72


similar to the top locking flanges described above.




A second cross spar


74


is provided that is constructed to interlock with the first spar


67


. In particular, the second spar includes a downward spar slot


75


for mating with the upward slot


68


. The second spar


74


also defines a pair of support spar slots


76


at its upper support edge, as well as top locking flanges


78


at its opposite ends.




When the two cross spars


67


and


74


are assembled, as shown in

FIG. 6



b


, a pair of support spars


82


can be mounted on the first spar


67


, as depicted in

FIGS. 6



b


and


6




c


. Each support spar includes a downward slot


83


for mating with a corresponding support spar slot


69


. In addition, each support spar


82


defines a pair of interlocking notches


84


, as shown in

FIG. 6



b


. The interlocking notches


84


are configured to mate with corresponding notches


87


on additional support spars


85


, shown in

FIGS. 6



d-e


. Like the first described support spars, the spars


85


include downward slots


86


for mating with the upward slots


76


in the second cross spar


74


.




The resulting construction of the various support spars results in a box-like enter support


89


, as shown in

FIG. 6



e


. This support


89


, along with the support edges


72


and


79


of the cross spars


67


and


74


, provide a stable surface for supporting the tabletop. The assembly of the tabletop is depicted in

FIGS. 6



f-i


. In particular, the tabletop is formed by a pair of identical tabletop panels


92


. Each panel


92


defines a center cut-out


93


, with an inner locking slot formed at opposite sides of the center cut-out. In addition, outer locking slots are provided at opposite sides of the outer edge


96


of the panel


92


.




To assemble the tabletop, a first panel


92


is slid underneath a pair of top locking flanges


71


and


78


. Again, as with the flanges described above, a tight fit or a press-fit can be accomplished to snugly hold the tabletop panels in place As shown in

FIG. 6



f


, the panel


92


is preferably oriented so that the inner edge bisects the support spars and is not positioned beneath a locking flange


71


or


78


.




Referring to

FIG. 6



g


, the second identical panel


92


can be juxtaposed to the first panel to provide a substantially complete tabletop. When so positioned, the cut-outs


93


in each panel are juxtaposed to form a combined cut-out in the center of the tabletop. In order to facilitate placement of the second panel


92


when a first panel is already in place, the support edges


72


and


79


of the two cross spars


67


,


74


, are beveled downward at a relief edge


73


,


80


beneath a free locking flange. These relief edges are best seen in

FIG. 6



f


. The edges are angled downward so that the second panel can be inserted into the locking flanges


71


and


78


at an angle. When the panel is lodged at the end of the locking flange, it can then be pivoted downward until it rests on the center support


89


. At this point, the inner edges of the two panels


92


mate to form a uniform tabletop surface. In addition, the two panels form a center cut-out, as shown in

FIG. 6



h.






In one embodiment of the invention, the inner and outer locking slots


94


,


95


of the two panels form combined slots, like the combined slot


45


in the table


12


described above. A pair of locking pins


97


can be inserted into the combined outer locking slots to lock toe two panels together. In addition, a single locking pin


97


can be positioned within a combined inner locking slot at the center cut-outs


93


of the panels. In the final step of the assembly, the center tabletop panel


98


can be placed within the cut-outs


93


, as shown in

FIG. 6



i


. The center panel


98


can define a locking slot


99


at each side edge thereof. The center panel can be slid over the exposed end of the locking pin


97


at the inner cut-out of the combined panels


92


.




In addition to the top locking aspect of the tables


10


,


12


,


50


and


65


, the present invention contemplates a further feature embodied within the various panels used to form the tabletop. Using the table


65


as an example, it can be seen that three panels (two panels


92


and center panel


98


) are used to form the tabletop. Each of these panels can be of identical surface finish; however, each can also be of a different surface finish or material. For instance, the two primary panels


92


can be formed of wood, while the center panel


98


can be formed of a translucent or transparent material. For that matter, each of the panels, as well as each of the supporting spars can be of different color, textures or outer profiles. In addition, the center panel can include integral functional elements, such as an integral lazy-susan.




The components of these RTA tables can be formed of a variety of materials, such as wood or plastic. Preferably, the tabletop panels are formed of a material that can be compressed slightly to allow for a solid lodgment of the panels within the various top locking flanges. Alternatively, the locking flanges can exhibit some springiness to generate a clamping force against the tabletop panels. It should be appreciated that the RTA tables of the present invention require no tools to assemble or disassemble, and consequently the components do not require intricate machining to produce.




The present invention also contemplates sleeping furniture, such as beds


105


and


150


shown in

FIGS. 7



a-d


and


11




a-d


, respectively. The two beds exhibit different aesthetic appearances, but both are constructed and assembled in a common manner. Using the bed


105


as an example, this RTA furniture item includes a pair of identical side panels


107


. Each side panel defines a side slot


108


that extends along a substantial portion of the panel length, as shown best in FIG.


8


. In addition, the panel


107


defines upward and downward notches


109


and


110


, respectively, at opposite ends of the panel. Optimally, the notches have the same length and are disposed at the same distance from the end edge of the panel. With this configuration, the side panels


107


are universal and it will not be necessary to determine a proper orientation of the panel when assembling the bed


105


.




The bed


105


further includes a foot board


112


that bears slots


113


for engaging the slot


109


in each of the side panels


107


. The foot board can include a support edge


114


. A headboard


116


is also provided that includes slots


117


for inter-engagement with the slot


110


in the side panels. The side panels, footboard and headboard can be readily assembled to form a generally rectangular box. It should be apparent that these components can have a variety of ornamental configurations. For instance, the side panels can be formed as the side panels


151


of the bed


150


. Likewise, the footboard can be formed like the footboard


152


and the headboard like board


153


.




Referring again to

FIG. 7



d


, the bed


105


includes support panels


120


and


128


for supporting a mattress and box-springs. The bed construction of the present invention contemplates two identically configured end support panels


120


, shown in detail in FIG.


9


. The end panels can include end notches


121


, adjacent the opposite sides of the panels that are configured to engage the slots


108


in the side panels. In the assembly of the bed, one end panel


120


is passed through the slots


108


in opposite side panels


107


. The end panel is then slid toward the footboard


112


until the slot


121


engages the side panels


107


.




A second identical end panel


120


can be similar positioned at the headboard end of the bed


105


, as shown in

FIG. 7



d


. In certain embodiments, one of the end support panels


120


can include a width-wise slot


124


(shown in phantom in

FIG. 9

) between the notches


121


and the headboard


112


can include a downward tab


115


to slid into the slot


124


.




With the two end panels


120


in position separated toward the opposite ends of the side panels


107


, the center support panel


128


can be inserted into the center portion of the slot


108


. The center panel


128


can be of a T-shape, as shown in FIG.


10


. The panel can include tabs


129


at the opposite ends of the “T” that can interlock with corresponding cut-outs


122


in each end panel


120


. The side edges


130


of the center panel


128


bear against the inboard edges


123


of the end panels


120


. The end edge


131


of the center panel contact the end edge of another center panel


128


inserted through the slot


108


in the opposite side panel. Thus, as shown in

FIG. 7



d


, the four panels, two panels


120


and two panels


128


, combine to form a continuous support surface for a mattress and box-springs.




In order to provide more support in the center of the bed


105


, a center spar


135


and cross spar


138


can be included. The two spars include mating slots


137


and


140


that interlock like the spars and panels incorporated into the tables


10


,


12


,


55


and


65


. The end panels


120


can include a center slot


125


and the center support panels can include center slots


133


to receive corresponding tabs


137


and


139


of the interlocked spars


135


and


138


, respectively. The center and cross spars


135


and


138


not only support the middle of the bed support panels, the tabs also operate to hold the various panels in their juxtaposed position shown in

FIG. 7



d.






Looking now at

FIGS. 11



a-d


, an alternative bed design is illustrated. The bed


150


can be constructed and assembled in a manner similar to the bed


105


. The bed


150


includes side panels


151


, footboard


152


and headboard


153


. Two end support panels


155


and two center support panels


156


close the center of the frame formed by the panels and boards.




With this embodiment, the footboard can be modified to include a downward ground-engaging tab


154


. The tab can fit through a slot


159


in one of the end support panels


155


. A similar arrangement can be implemented at the headboard


153


.




In a further feature of this embodiment, the tab


154


of the footboard


152


can define a pair of spaced-apart slots


161


, as shown in

FIG. 11



b


. The slots receive locking members


160


(

FIG. 11



c


) that are press-fit into the slots. The locking members serve to hold the footboard


152


in its assembled position. In addition, the locking members


160


can provide additional vertical support for the end of the end support panel


155


. A similar construction can be implemented at the headboard end, as shown in

FIG. 11



c


. In one embodiment, the locking members are elongate with rounded ends, as illustrated in FIG.


12


. The length of the locking members


160


is slightly greater than the length of the slots


161


to effect a press-fit.




While the invention has been illustrated and described in detail in the drawings and foregoing description, the same should be considered as illustrative and not restrictive in character. It is understood that only the preferred embodiments have been presented and that all changes, modifications and further applications that come within the spirit of the invention are desired to be protected. Other style variations of furniture and accessories may readily incorporate the principles of the present invention.



Claims
  • 1. A ready-to-assemble (RTA) table comprising:an elongated center spar having an upper edge and a locking flange at each end thereof overhanging a portion of the tipper edge to define a gap therebetween and an interlocking slot at each end thereof; an elongated first end panel having an upper edge and an interlocking slot for engagement with an interlocking slot at one end of said center spar; an elongated second panel having an upper edge and a locking flange at each end thereof overhanging a portion of the upper edge to define a gap therebetween, and an interlocking slot for engagement with an interlocking slot at an opposite end of said center spar; a support surface defined by the upper edge of said center spar, said first end panel and said second end panel defining; a first tabletop panel supported on a portion of said support surface and having an end edge at one end configured for tight-fit engagement within the gap at said opposite end of said center spar, opposite side edges configured for tight-fit engagement within the gap at each end of said second panel, and a cut-out defined at an opposite end thereof; and a second tabletop panel supported on another portion of said support surface and having an end edge at one end configured for tight-fit engagement within the gap at said one end of said center spar, and an opposite edge having a complementary shape to said cut-out and configured to be juxtaposed within said cut-out when said end edge of said second panel is within the gap.
  • 2. A ready-to-assemble (RTA) table comprising:a first elongated spar having an upper edge and a locking flange at each end thereof overhanging a portion of the upper edge to define a gap therebetween; a second elongated spar having an upper edge and a locking flange at each end thereof overhanging a portion of the upper edge to define a gap therebetween; an interlocking arrangement between said first and second spars so that the locking flanges are disposed substantially uniformly apart; a support surface defined by the upper edges of said first and second spars when the spars are interlocked; a pair of identically configured semi-circular panels having an outer edge configured for tight-fit engagement within each of the gaps, and each of said panels defining a cut-out that forms a center cut-out when the pair of panels is juxtaposed and supported on said support surface; and a center panel configured for placement within said center cut-out when supported on said support surface.
  • 3. A ready-to-assemble (RTA) article of furniture comprising:a box-like base structure having opposite side panels, each of said side panels defining an elongated slot; a pair of substantially identically configured end panels, each having an end edge with a pair of notches extending therein and opposite side edges, each of said pair of end panels configured to fit through said slot in each of said side panels and to be slid toward opposite ends of said slot so that said pair of notches in each of said end panels engages a corresponding opposite end of said slot, said pair of end panels having an inboard edge, the inboard edges of the pair of panels spaced apart when said panels are at said opposite ends of said slot; and a pair of substantially identically configured center panels, each configured to fit through a slot in a corresponding one of said side panels, and each having opposite side edges for juxtaposition with the inboard edges of the pair of end panels and each having an end edge for juxtaposition with each other when each enter panel is extended through the slot in a corresponding one of said side panels.
  • 4. The RTA article of furniture of claim 3, wherein:each of said pair of end panels defines a cut-out in said opposite side edges adjacent said end edge; and each of said pair of center panels is T-shaped with opposite tabs configured for juxtaposition within a cut-out in each of said pair of end panels when each center panel extends through a slot of a corresponding one of said side panels.
  • 5. The RTA article of furniture of claim 3, further comprising a support structure spanning each of said pair of end panels and said pair of center panels and disposed within said box-like base structure.
  • 6. The RTA article of furniture of claim 5, wherein said support structure includes:an elongated center spar having tabs at its opposite ends; an elongated cross spar having tabs at its opposite ends; an interlocking slot engagement between said center spar and said cross spar; and slots defined in said pair of end panels and said pair of center panels configured to receive said tabs of said center spar and said cross spar.
  • 7. The RTA article of furniture of claim 3, wherein said box-like base structure further includes:a footboard panel; a headboard panel; and an interlocking slot engagement between said baseboard panel and said pair of side panels and between said headboard panel and said pair of side panels.
  • 8. The RTA article of furniture of claim 7, wherein:at least one of said pair of end panels defines a slot between said pair of notches adjacent said end edge; and at least one of said footboard panel and said headboard panel includes a tab configured to extend through the slot in the end panel when the end panel is engaged to said side panels.
REFERENCE TO RELATED APPLICATION

This application claims priority to U.S. provisional application Ser. No. 60/339,172, filed on Dec. 11, 2001, in the name of the same inventor and bearing the same title.

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