Collapsible table

Information

  • Patent Grant
  • 6622644
  • Patent Number
    6,622,644
  • Date Filed
    Wednesday, December 12, 2001
    24 years ago
  • Date Issued
    Tuesday, September 23, 2003
    22 years ago
Abstract
A collapsible table has a table top, such as may be formed by blow molding, with a substantially planar top surface and a bottom surface opposite the top surface. Formed into the bottom surface of the table top are opposing first and second channels. Disposed within the first channel is a first pivot bar, and disposed within the second channel is a second pivot bar. The table includes opposing first and second frame members secured to the bottom surface of the table top. Disposed between and pivotally attached to the first and second frame members are opposing first and second leg assemblies which are movable between a use position and a storage position. To maintain the first leg assembly in the use position, the table has a first support assembly including a first brace structure and a first support bar. The first brace structure has a first central pivotal attachment point, and one or more first distal pivotal attachment points attached to the first leg assembly. The first support bar has a first end which is pivotally attached to the first pivot bar and a second end which pivotally attached to the first central pivotal attachment point of the first brace structure. To maintain the second leg assembly in the use position, the table has a second support assembly having a second brace structure and a second support bar. The second brace structure has a second central pivotal attachment point, and one or more second distal pivotal attachment points attached to the second leg assembly. The second support bar has a first end which is pivotally attached to the second pivot bar and a second end which pivotally attached to the second central pivotal attachment point of the first brace structure.
Description




FIELD




This invention relates to collapsible furniture. More particularly, the invention relates to a lightweight table having legs which may collapse from a use position to a storage position.




BACKGROUND




Collapsible or foldable tables are widely used to provide temporary table space in multipurpose meeting rooms, such as banquet halls and hotel conference rooms. Collapsible tables are popular for such applications because they may be folded into a relatively flat package which provides for ease of storage between uses.




Prior collapsible table designs have been lacking for numerous reasons. Some tables, such as those having table tops made of solid wood or particle board, are extremely heavy and unwieldy, causing difficulty in transport and setup. Such heavy tables can also cause severe damage or injury if dropped during transport. Lighter-weight table designs generally employ support structures that become unstable when a significant amount of weight is placed on the table top. To overcome stability problems, some table designs employ folding support mechanisms that are complicated and costly to manufacture.




What is needed, therefore, is a folding table which is sturdy, relatively light-weight, and relatively inexpensive to manufacture.




SUMMARY




The above and other needs are met by a collapsible table having a table top, such as may be formed by blow molding, with a substantially planar top surface and a bottom surface opposite the top surface. Formed into the bottom surface of the table top are opposing first and second channels. Disposed within the first channel is a first pivot bar, and disposed within the second channel is a second pivot bar. The table includes opposing first and second frame members secured to the bottom surface of the table top. Disposed between and pivotally attached to the first and second frame members are opposing first and second leg assemblies which are movable between a use position and a storage position. To maintain the first leg assembly in the use position, the table has a first support assembly which includes a first brace structure and a first support bar. The first brace structure has a first central pivotal attachment point, and one or more first distal pivotal attachment points attached to the first leg assembly. The first support bar has a first end which is pivotally attached to the first pivot bar and a second end which is pivotally attached to the first central pivotal attachment point of the first brace structure. To maintain the second leg assembly in the use position, the table has a second support assembly which includes a second brace structure and a second support bar. The second brace structure has a second central pivotal attachment point, and one or more second distal pivotal attachment points attached to the second leg assembly. The second support bar has a first end which is pivotally attached to the second pivot bar and a second end which is pivotally attached to the second central pivotal attachment point of the first brace structure.




In a most preferred embodiment, the first and second pivot bars comprise substantially cylindrical rods, and the first and second channels each have a channel surface with an inside diameter substantially equivalent to the outside diameter of the first and second pivot bars.




Also in preferred embodiments, the bottom surface of the table top has opposing first and second projections separated by a separation distance. The first channel preferably has a first channel portion formed in the first projection, and a second channel portion formed in the second projection opposite the first channel portion. The first pivot bar is disposed within the first and second channel portions of the first channel, and spans the separation distance between the first and second projections. The second channel preferably has a third channel portion formed in the first projection, and a fourth channel portion formed in the second projection opposite the third channel portion. The second pivot bar is disposed within the third and fourth channel portions of the second channel, and spans the separation distance between the first and second projections.




In another aspect, the invention provides a method for manufacturing a collapsible table. The method includes forming a table top having a substantially planar top surface, a bottom surface opposite the top surface, and opposing first and second channels in the bottom surface. The method includes securing opposing first and second frame members to the bottom surface of the table top, and pivotally attaching first and second leg assemblies to the first and second frame members, such that the first and second leg assemblies are movable between a use position and a storage position.




According to the preferred method, a first brace structure is provided, having a first central pivotal attachment point and at least one first distal pivotal attachment point. The first distal pivotal attachment point of the first brace structure is pivotally attached to the first leg assembly. The method includes providing a first support bar having first and second ends. The second end of the first support bar is pivotally attached to the first central pivotal attachment point of the first brace structure. The method further includes providing a first pivot bar, pivotally attaching the first end of the first support bar to the first pivot bar, and inserting the first pivot bar into the first channel in the bottom surface of the table top.




A second brace structure is provided, having a second central pivotal attachment point and at least one second distal pivotal attachment point. The second distal pivotal attachment point of the second brace structure is pivotally attached to the second leg assembly. The method includes providing a second support bar having first and second ends. The second end of the second support bar is pivotally attached to the second central pivotal attachment point of the second brace structure. The method further includes providing a second pivot bar, pivotally attaching the first end of the second support bar to the second pivot bar; and inserting the second pivot bar into the second channel in the bottom surface of the table top.











BRIEF DESCRIPTION OF THE DRAWINGS




Further advantages of the invention are apparent by reference to the detailed description when considered in conjunction with the figures, which are not to scale so as to more clearly show the details wherein like reference numbers indicate like elements throughout the several views, and wherein:





FIG. 1

is a perspective view of the top of a collapsible table according to a preferred embodiment of the invention;





FIG. 2

is an exploded view of a collapsible table according to a preferred embodiment of the invention;





FIG. 3

is a perspective view of the bottom of a collapsible table according to a preferred embodiment of the invention;





FIG. 4

depicts a structure for pivotally attaching support bars to a bottom surface of a table top of a collapsible table according to a preferred embodiment of the invention;





FIG. 5

is a perspective view of the top of a collapsible table according to an alternative embodiment of the invention;





FIG. 6

is an exploded view of a collapsible table according to an alternative embodiment of the invention;





FIG. 7

is a perspective view of the bottom of a collapsible table according to an alternative embodiment of the invention;





FIG. 8

depicts a structure for pivotally attaching support bars to a bottom surface of a table top of a collapsible table according to an alternative embodiment of the invention; and





FIGS. 9A-C

depict orthogonal views of an attachment bar used to pivotally attach a support bar to a bottom surface of a table top of a collapsible table according to an alternative embodiment of the invention.











DETAILED DESCRIPTION




Referring now to

FIGS. 1-4

, there is generally depicted a collapsible table


10


according to a preferred embodiment of the present invention. The table


10


includes a table top section


12


having a substantially planar top surface


12




a


and an opposing bottom surface


12




b


. In the preferred embodiment, the table top


12


is formed from a thermoplastic material by a molding process, such as blow molding. This process provides a sturdy, yet lightweight table top


12


that is well suited for applications where ease of handling and transport are important. Though thermoplastic is the preferred material for the table top


12


, one skilled in the art will appreciate that the table top


12


could be formed of other materials, such as fiberglass or other composite materials, wood, or metal. Thus, the scope of the invention is not limited to any particular material or forming method for the table top


12


. In a preferred embodiment, the table top


12


is about 48 inches long and about 24 inches wide.




Although the table top


12


depicted in

FIGS. 1-3

is rectangular, it should be appreciated that the structures described herein are applicable to table tops that are circular, elliptical, or any other shape. Thus, the scope of the invention is not limited to any particular shape of the table top


12


.




As depicted in

FIGS. 2 and 3

the preferred embodiment of the table top


12


includes a peripheral lip


13


extending outward from the bottom surface


12




b


. Preferably, the lip


13


is formed during the molding of the table top


12


, and is thus an integral and continuous extension of the bottom surface


12




b


. Attached to the lip


13


on opposing sides of the bottom surface


12




b


are a pair of frame members


18


and


20


, also referred to herein as a first frame member


18


and a second frame member


20


. Preferably, the first and second frame members


18


and


20


are secured to the lip


13


by screws


15


. In the preferred embodiment, the frame members


18


and


20


are formed of metal, such as steel, and are generally L-shaped in cross-section. As depicted in

FIG. 2

, the frame members


18


and


20


preferably include lip portions


18




a


and


20




a


which are received in channels


13




a


and


13




b


in the lip


13


when the frame members


18


and


20


are attached to the bottom surface


12




b


of the table top


12


. This interface between the lip portions


18




a


-


20




a


and the channels


13




a


-


13




b


tends to prevent lateral motion between the frame members


18


and


20


and the table top


12


, thereby increasing the structural rigidity of the table


10


.




As shown in

FIG. 2

, adjacent each end of the first frame member


18


are substantially circular apertures


18




a


and


18




c


, and adjacent each end of the second frame member


20


are substantially circular apertures


20




b


and


20




c


. The purpose of the apertures


18




b


-


18




c


and


20




b


-


20




c


is described below.




As depicted in

FIGS. 1-3

, the table


10


includes a pair of opposing leg assemblies


14


and


16


, also referred to herein as a first leg assembly


14


and a second leg assembly


16


. The first and second leg assemblies


14


and


16


are pivotally attached to and between the first and second frame members


18


and


20


. In the preferred embodiment, the first leg assembly


14


comprises a pair legs


14




a


and


14




b


, each attached at one end to a cross member


14




d


. The second leg assembly


16


preferably comprises a pair legs


16




a


and


16




b


, each attached at one end to a cross member


16




d


. To provide lateral support, a brace


14




c


is provided between the legs


14




a


and


14




b


, and a brace


16




c


is provided between the legs


16




a


and


16




b


. In the preferred embodiment, the legs


14




a


-


14




b


and


16




a


-


16




b


, the cross members


14




d


and


16




d


, and the braces


14




c


and


16




c


are formed of metal, such as steel. However, it will be appreciated that other materials could be used, such as wood or composite materials. The attachment of the legs


14




a


-


14




b


and


16




a


-


16




b


to the cross members


14




d


and


16




d


, and the braces


14




c


and


16




c


to the legs


14




a


-


14




b


and


16




a


-


16




c


, is preferably accomplished by welding.




As shown in

FIGS. 2 and 3

, opposing ends of the cross member


14




d


penetrate the apertures


18




c


and


20




c


in the opposing frame members


18


and


20


. Similarly, opposing ends of the cross member


16


d penetrate the apertures


18




a


and


20




b


in the frame members


18


and


20


. The diameters of the apertures


18




b


-


18




c


and


20




b


-


20




c


are preferably large enough to allow free rotation of the ends of the cross members


16




d


and


14




d


therein. In this manner, the leg assemblies


14


and


16


may be rotated between a use position and a storage position. In

FIG. 3

, the leg assembly


14


is depicted in the use position, and the leg assembly


16


is depicted in the storage position.




To maintain the first and second leg assemblies


14


and


16


in the use position, the table


10


includes first and second support assemblies


21


and


23


. As depicted in

FIGS. 2 and 3

, the first support assembly


21


includes a first brace structure


28


and a first support bar


24


, and the second support assembly


23


includes a second brace structure


26


and a second support bar


22


. In the preferred embodiment of the invention, the first brace structure


28


comprises two opposing brackets


28




a


and


28




b


, and the second brace structure


26


comprises two opposing brackets


26




a


and


26




b


. Preferably, the bracket


28




a


is pivotally attached at one end to the leg


14




a


of the leg assembly


14


and at the other end to the second end


24




b


of the support bar


24


. The bracket


28




a


is pivotally attached at one end to the leg


14




b


and at the other end to the second end


24




b


of the support bar


24


. Similarly, the bracket


26




a


is pivotally attached at one end to the leg


16




a


of the leg assembly


16


and at the other end to the second end


22




b


of the support bar


22


. The bracket


26




b


is pivotally attached at one end to the leg


16




b


and at the other end to the second end


22




b


of the support bar


22


. The pivotal attachment of the brackets


28




a-b


and


26




a-b


to the leg assemblies


14


and


16


is preferably accomplished using bolts


29


, and pivotal attachment of the brackets


28




a-b


and


26




a-b


to the support bars


24


and


22


is preferably accomplished using bolts


27


. In the preferred embodiment, the brackets


28




a


-


28




a


and


26




a


-


26




b


are formed of steel bar stock. The first and second support bars


24


and


22


are preferably formed of tubular steel which has been pressed flat at the ends


24




a


-


24




b


and


22




a


-


22




b


. The first ends


24




a


-


22




a


of the first and second support bars


24


and


22


are pivotally coupled to the bottom surface


12




b


of the table top


12


in a manner described hereinafter. As depicted in

FIG. 2

, extending outward from the bottom surface


12




b


of the table top


12


are a pair of opposing elongate projections


34


and


36


, also referred to herein as first and second projections


34


and


36


, which are separated by a gap


35


. In the preferred embodiment, the projections


34


and


36


are formed during the molding of the table top


12


, and are thus integral and continuous extensions of the material which forms the bottom surface


12




b


of the table top


12


. Within the first and second projections


34


and


36


are first and second channels


38


and


40


. Preferably, the first channel


38


includes a first channel portion


38




a


formed in the first projection


34


, and a second channel portion


38




a


formed in the second projection


36


, where the first channel portion


38




a


is aligned with the second channel portion


38


b. The second channel


40


includes a third channel portion


40




a


formed in the first projection


34


, and a fourth channel portion


40




b


formed in the second projection


36


, where the third channel portion


40




a


is aligned with the fourth channel portion


40




b


. Preferably, the channel portions


38




a-b


and


40




a-b


take the form of cylindrical grooves molded into the first and second projections


34


and


36


.




In alternative embodiments, the channels


38


and


40


are formed completely within a single projection extending from the bottom surface


12




b


of the table top


12


, or are formed directly in the bottom surface


12




b.






As depicted in

FIGS. 2

,


3


, and


4


, the preferred embodiment of the table


10


includes a pair of pivot bars


30


and


32


which are preferably formed of tubular steel. The pivot bars


30


and


32


have an outer diameter which is substantially the same as, or preferably slightly less than, the inner diameter of apertures


22




c


and


24




c


in the first ends


22




a


and


24




a


of the first and second support bars


22


and


24


. As shown in

FIGS. 3 and 4

, the pivot bar


30


penetrates the aperture


22




c


in the first support bar


22


, and the pivot bar


32


penetrates the aperture


24




c


in the second support bar


24


. Thus, the first and second support bars


22


and


24


are free to pivot about the first and second pivot bars


30


and


32


, respectively, as the leg assemblies


14


and


16


rotate between the use and storage positions.




The outer diameter of the first and second pivot bars


30


and


32


is also substantially the same as, or slightly less than, the inner diameter of the first and second channels


38


and


40


. In this manner, the first pivot bar


30


may be inserted into the first and second channel portions


38




a-b


of the first channel


38


, and the second pivot bar


32


may be inserted into the third and fourth channel portions


40




a-b


of the second channel


40


. Preferably, as depicted, the channel portions


38




a-b


and


40




a-b


are blind channels, that is, they do not extend completely through the projections


34


and


36


. Thus, when the first and second pivot bars


30


and


32


are inserted into the channel portions


38




a-b


and


40




a-b


, the bars


30


and


32


are preferably captured in the axial direction, thereby preventing movement of the bars


30


and


32


in the axial direction. As shown in

FIG. 4

, the projection


34


preferably includes lips


34




a-b


which partially overhang the first and third channel portions


38




a


and


40




a


, respectively. Similarly, the projection


36


preferably includes lips


36




a-b


which partially overhang the second and fourth channel portions


38




a


and


40




b


, respectively. The lips


34




a-b


and


36




a-b


serve to capture the pivot bars


30


and


32


so that they snap into place when inserted into the channel portions


38




a-b


and


40




a-b


. As shown in

FIGS. 3 and 4

, the pivot bars


30


and


32


are preferably secured in the channel portions


38




a-b


and


40




a-b


by fasteners, such as screws


44


,


46


,


48


, and


50


.




As depicted in

FIG. 3

, the pivotal motion of the first ends of the support bars


22


and


24


with respect to the pivot bars


30


and


32


, and the pivotal motion of the brace structures


26


and


28


with respect to the support bars


22


and


24


and the leg assemblies


14


and


16


, allows these structures to fold down substantially parallel to the table top


12


. The gap


35


between the first and second projections


34


and


36


provides a space to accommodate the support bars


22


and


24


when the leg assemblies


14


and


16


are folded down into the storage position.




With reference to

FIG. 3

, the preferred embodiment of the invention includes lock rings


31


, each having sufficient inner diameter to slide down over the second ends of the support bars


22




b


and


24




b


and over the attached ends of the brace structures


28


and


26


when the leg assemblies


14


and


16


are in the use position. The lock rings


31


serve to prevent the brace structures


26


and


28


from pivoting in relation to the support bars


22


and


24


when in the use position, thereby preventing an inadvertent collapse of the table


10


.




As shown in

FIG. 4

, the preferred embodiment of the invention includes a handle


42


secured between and perpendicular to the pivot bars


30


and


32


. In the preferred embodiment, the handle


42


is formed of tubular steel, and is secured at each end to the pivot bars


30


and


32


by welding. However, one skilled in the art will appreciate that the handle


42


could be attached to the pivot bars


30


and


32


by other means, such as using screws or other fasteners. Preferably, the handle has notches


42




a


and


42




b


at each end which straddle the ends


22




a


and


24




a


of the support bars


22


and


24


. In this manner, the ends


22




a


and


24




a


of the support bars


22


and


24


are captured within the notches


42




a


and


42




b


to prevent lateral movement of the support bars


22


and


24


with respect to the pivot bars


30


and


32


.




An alternative embodiment of the table


10


is depicted in

FIGS. 5-7

. Except for the shape of the leg assemblies


14


and


16


, the structure of this embodiment is substantially the same as the structure of the first embodiment described above. The embodiment of

FIGS. 5-7

is particularly well suited for a table having a higher length-to-width ratio, such as a banquet table. For example, the table top


12


depicted in

FIGS. 5-7

is preferably about


72


inches long and about


30


inches wide.




Depicted in FIGS.


8


and


9


A-C is a structure for pivotally attaching the first and second support bars


22


and


24


to the bottom surface


12




b


according to an alternative embodiment of the invention. This embodiment includes four attachment brackets


102


,


104


,


106


, and


108


attached to the bottom surface


12




b


and to the frame members


18


and


20


.




As shown in

FIG. 8

, two of the brackets


102


and


106


span one half of the bottom surface


12




b


, and the other two brackets


104


and


108


span the other half of the bottom surface


12




b


. Distal ends


102




a


and


106




a


of the brackets


102


and


106


penetrate a slot


20




d


in the frame member


20


, and distal ends


104




a


and


108




a


of the brackets


104


and


108


penetrate a slot


18




d


in the opposing frame member


18


. Proximate ends


102




b


,


104




b


,


106




b


, and


108




a


of the brackets


102


,


10




104


,


106


, and


108


are secured to the bottom surface


12




b


, preferably using fasteners such as screws which pass through holes in attachment tabs


102




c


,


104




c


,


106




c


, and


108




c


and into the material of the bottom surface


12




b.







FIGS. 9A

,


9


B, and


9


C depict three orthogonal views of the attachment bracket


106


. One skilled in the art will appreciate that the bracket


102


is a horizontal mirror image of the bracket


106


, and the brackets


108


and


104


are vertical mirror images of the brackets


106


and


102


, respectively. As shown in

FIGS. 9A

,


9


B, and


9


C, the bracket


106


has a pivot tab


106




d


with a through-hole


110


therein. When the brackets


106


and


108


are attached to the bottom surface


12




b


, the hole


110


in the pivot tab


106




d


is aligned with an opposing hole in the pivot tab


108




d


of the bracket


108


. Similarly, when the brackets


102


and


104


are attached to the bottom surface


12




b


, a hole in the pivot tab


102




d


is aligned with an opposing hole in the pivot tab


104




d


of the bracket


104


. The first end


22




a


of the support bar


22


is disposed between the pivot tabs


106




d


and


108




d


, with the aperture


22




c


(

FIG. 2

) aligned with the holes


110


in the pivot tabs


106




d


and


108




d


. The first end


24




a


of the support bar


24


is disposed between the pivot tabs


102




d


and


104




d


, with the aperture


24




c


(

FIG. 2

) aligned with the holes


110


in the pivot tabs


102




d


and


104




d


. Fasteners


112


, such as bolts, penetrate the holes


110


in the pivot tabs


106




d


and


108




d


and the aperture


22




c


to pivotally attach the support bar


22


to the brackets. Similarly, fasteners


112


penetrate the holes


110


in the pivot tabs


102




d


and


104




d


and the aperture


24




c


to pivotally attach the support bar


22


to the brackets


102


and


104


. Thus, as the leg assemblies


14


and


16


(

FIG. 3

) are moved between the use position and the storage position, the support bars


22


and


24


pivot about the fasteners


112


.




Although it has been determined that brackets


102


,


104


,


106


,


108


having the shapes as depicted in

FIG. 8

provide a structurally secure means of attachment, it should be appreciated that the brackets


102


,


104


,


106


,


108


could have other shapes. For example, instead of providing three alternating 90-degree bends as depicted in

FIG. 9A

, the brackets


102


,


104


,


106


,


108


could be provided with two bends of 135 degrees, while leaving the ends of the brackets at the same relative positions. In that example, the brackets


102


,


104


,


106


,


108


would come together in a substantially diamond-shaped arrangement, rather than the rectangular arrangement depicted in FIG.


8


. Thus, the scope of the invention is not limited to any particular shape of the attachment brackets


102


,


104


,


106


, and


108


.




The foregoing description of preferred embodiments for this invention have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obvious modifications or variations are possible in light of the above teachings. The embodiments are chosen and described in an effort to provide the best illustrations of the principles of the invention and its practical application, and to thereby enable one of ordinary skill in the art to utilize the invention in various embodiments and with various modifications as is suited to the particular use contemplated. All such modifications and variations are within the scope of the invention as determined by the appended claims when interpreted in accordance with the breadth to which they are fairly, legally, and equitably entitled.



Claims
  • 1. A collapsible table comprising:a table top having: a substantially planar top surface; a bottom surface opposite the top surface; and opposing first and second channels formed into the bottom surface; a first pivot bar disposed within the first channel; a second pivot bar disposed within the second channel; opposing first and second frame members secured to the bottom surface of the table top; opposing first and second leg assemblies disposed between and pivotally attached to the first and second frame members, the first and second leg assemblies movable between a use position and a storage position; a first support assembly for maintaining the first leg assembly in the use position, the first support assembly comprising: a first brace structure having a first central pivotal attachment point and at least one first distal pivotal attachment point, the at least one first distal pivotal attachment point pivotally attached to the first leg assembly; and a first support bar having first and second ends, the second end of the first support bar pivotally attached to the first central pivotal attachment point of the first brace structure, and the first end of the first support bar pivotally attached to the first pivot bar; and a second support assembly for maintaining the second leg assembly in the use position, the second support assembly comprising: a second brace structure having a second central pivotal attachment point and at least one second distal pivotal attachment point, the at least one second distal pivotal attachment point pivotally attached to the second leg assembly; and a second support bar having first and second ends, the second end of the second support bar pivotally attached to the second central pivotal attachment point of the second brace structure, and the first end of the second support bar pivotally attached to the second pivot bar.
  • 2. The collapsible table of claim 1 further comprising:the first and second pivot bars comprising substantially cylindrical rods, each having an outside diameter; and the first and second channels each having a channel surface with an inside diameter substantially equivalent to the outside diameter of the first and second pivot bars.
  • 3. The collapsible table of claim 2 further comprising:the first pivot bar secured in the first channel by at least one screw passing through the first pivot bar and into the inner surface of the first channel; and the second pivot bar secured in the second channel by at least one screw passing through the second pivot bar and into the inner surface of the second channel.
  • 4. The collapsible table of claim 1 further comprising:the bottom surface of the table top further having opposing first and second projections separated by a separation distance; the first channel further having a first channel portion formed in the first projection, and a second channel portion formed in the second projection opposite the first channel portion; and the first pivot bar disposed within the first and second channel portions of the first channel, and spanning the separation distance between the first and second projections.
  • 5. The collapsible table of claim 4 further comprising:the second channel having a third channel portion formed in the first projection, and a fourth channel portion formed in the second projection opposite the third channel portion; and the second pivot bar disposed within the third and fourth channel portions of the second channel, and spanning the separation distance between the first and second projections.
  • 6. The collapsible table of claim 1 further comprising:the first end of the first support bar having a first aperture with a first diameter sufficient to receive the first pivot bar; the first pivot bar penetrating the first aperture in the first support bar; the first end of the second support bar having a second aperture with a second diameter sufficient to receive the second pivot bar; and the second pivot bar penetrating the second aperture in the second support bar.
  • 7. The collapsible table of claim 1 further comprising:the first pivot bar disposed substantially in parallel with the second pivot bar, and separated from the second pivot bar by a separation distance; and a handle member having a first handle end secured to the first pivot bar and a second handle end secured to the second pivot bar, the handle member disposed substantially perpendicular to the first and second pivot bars and spanning the separation distance between the first and second pivot bars.
  • 8. The collapsible table of claim 7 further comprising:the first handle end of the handle member having a first notch straddling the first end of the first support bar; and the second handle end of the handle member having a second notch straddling the first end of the second support bar.
  • 9. The collapsible table of claim 1 wherein the table top further comprises a blow-molded thermoplastic material.
  • 10. A collapsible table comprising:a molded table top having: a substantially planar top surface; a bottom surface opposite the top surface, the bottom surface having opposing first and second molded projections separated by a separation distance; a first channel comprising a first channel portion formed in the first molded projection, and a second channel portion formed in the second molded projection opposite the first channel portion, the first and second channel portions having a first inside diameter; a second channel comprising a third channel portion formed in the first molded projection, and a fourth channel portion formed in the second molded projection opposite the third channel portion, the third and fourth channels having a second inside diameter; a first pivot bar disposed within the first and second channel portions of the first channel and spanning the separation distance between the first and second projections, the first pivot bar comprising a substantially cylindrical rod having a first outside diameter that is substantially equivalent to the first inside diameter of the first and second channel portions; a second pivot bar disposed within the third and fourth channel portions of the second channel and spanning the separation distance between the first and second projections, the second pivot bar comprising a substantially cylindrical rod having a second outside diameter that is substantially equivalent to the second inside diameter of the third and fourth channel portions; opposing first and second frame members secured to the bottom surface of the table top; opposing first and second leg assemblies disposed between and pivotally attached to the first and second frame members, the first and second leg assemblies movable between a use position and a storage position; a first support assembly for maintaining the first leg assembly in the use position, the first support assembly comprising: a first brace structure having a first central pivotal attachment point and at least one first distal pivotal attachment point, the at least one first distal pivotal attachment point pivotally attached to the first leg assembly; and a first support bar having first and second ends, the second end of the first support bar pivotally attached to the first central pivotal attachment point of the first brace structure, and the first end of the first support bar pivotally attached to the first pivot bar; and a second support assembly for maintaining the second leg assembly in the use position, the second support assembly comprising: a second brace structure having a second central pivotal attachment point and at least one second distal pivotal attachment point, the at least one second distal pivotal attachment point pivotally attached to the second leg assembly; and a second support bar having first and second ends, the second end of the second support bar pivotally attached to the second central pivotal attachment point of the second brace structure, and the first end of the second support bar pivotally attached to the second pivot bar.
  • 11. The collapsible table of claim 10 further comprising:the first end of the first support bar having a first aperture with a first diameter sufficient to receive the first pivot bar; the first pivot bar penetrating the first aperture in the first support bar; the first end of the second support bar having a second aperture with a second diameter sufficient to receive the second pivot bar; and the second pivot bar penetrating the second aperture in the second support bar.
  • 12. The collapsible table of claim 10 further comprising:the first pivot bar disposed substantially in parallel with the second pivot bar, and separated from the second pivot bar by a separation distance; and a handle member having a first handle end secured to the first pivot bar and a second handle end secured to the second pivot bar, the handle member disposed substantially perpendicular to the first and second pivot bars and spanning the separation distance between the first and second pivot bars.
  • 13. The collapsible table of claim 12 further comprising:the first handle end of the handle member having a first notch straddling the second end of the first support bar; and the second handle end of the handle member having a second notch straddling the second end of the second support bar.
  • 14. In a collapsible table of a type havinga molded table top with a substantially planar top surface and a bottom surface opposite the top surface, opposing first and second frame members secured to the bottom surface of the table top, opposing first and second leg assemblies disposed between and pivotally attached to the first and second frame members, where the first and second leg assemblies are movable between a use position and a storage position, a first support assembly for maintaining the first leg assembly in the use position, where the first support assembly includes a first brace structure having a first central pivotal attachment point and a first distal pivotal attachment point, where the first distal pivotal attachment point is pivotally attached to the first leg assembly, and a first support bar having first and second ends, where the second end of the first support bar is pivotally attached to the first central pivotal attachment point of the first brace structure, and a second support assembly for maintaining the second leg assembly in the use position, where the second support assembly includes a second brace structure having a second central pivotal attachment point and a second distal pivotal attachment point, where the second distal pivotal attachment point is pivotally attached to the second leg assembly, and a second support bar having first and second ends, where the second end of the second support bar is pivotally attached to the second central pivotal attachment point of the second brace structure, an improvement comprising: opposing first and second channels molded into the bottom surface of the table top; a first pivot bar disposed within the first channel; the second end of the first support bar pivotally attached to the first pivot bar; a second pivot bar disposed within the second channel; and the second end of the second support bar pivotally attached to the second pivot bar.
  • 15. The improvement of claim 14 wherein:the first and second pivot bars comprise substantially cylindrical rods, each having an outside diameter; and the first and second channels each have a channel surface with an inside diameter substantially equivalent to the outside diameter of the first and second pivot bars.
  • 16. The improvement of claim 15 wherein:the first pivot bar is secured in the first channel by at least one screw passing through the first pivot bar and into the inner surface of the first channel; and the second pivot bar is secured in the second channel by at least one screw passing through the second pivot bar and into the inner surface of the second channel.
  • 17. The improvement of claim 14 further comprising:opposing first and second molded projections in the bottom surface of the table top, the first and second molded projections separated by a separation distance; the first channel having a first channel portion formed in the first projection, and a second channel portion formed in the second projection opposite the first channel portion; and the first pivot bar disposed within the first and second channel portions of the first channel, and spanning the separation distance between the first and second projections.
  • 18. The improvement of claim 17 further comprising:the second channel having a third channel portion formed in the first projection, and a fourth channel portion formed in the second projection opposite the third channel portion; and the second pivot bar disposed within the third and fourth channel portions of the second channel, and spanning the separation distance between the first and second projections.
  • 19. The improvement of claim 14 further comprising:the first pivot bar disposed substantially in parallel with the second pivot bar, and separated from the second pivot bar by a separation distance; and a handle member having a first handle end secured to the first pivot bar and a second handle end secured to the second pivot bar, the handle member disposed substantially perpendicular to the first and second pivot bars and spanning the separation distance between the first and second pivot bars.
  • 20. The improvement of claim 19 further comprising:the first handle end of the handle member having a first notch straddling the first end of the first support bar; and the second handle end of the handle member having a second notch straddling the first end of the second support bar.
  • 21. A collapsible table comprising:a table top having: a substantially planar top surface; a bottom surface opposite the top surface; opposing first and second frame members secured to the bottom surface of the table top, the first frame member having a first central slot, and the second frame member having a second central slot; a first attachment bracket having a first distal end penetrating the first central slot of the first frame member and a first proximal end secured to the bottom surface of the table top; a second attachment bracket having a second distal end penetrating the second central slot of the second frame member and a second proximal end secured to the bottom surface of the table top adjacent the first proximal end of the first attachment bracket; a third attachment bracket having a third distal end penetrating the first central slot of the first frame member and a third proximal end secured to the bottom surface of the table top; a fourth attachment bracket having a fourth distal end penetrating the second central slot of the second frame member and a fourth proximal end secured to the bottom surface of the table top adjacent the third proximal end of the third attachment bracket; opposing first and second leg assemblies disposed between and pivotally attached to the first and second frame members, the first and second leg assemblies movable between a use position and a storage position; a first support assembly for maintaining the first leg assembly in the use position, the first support assembly comprising: a first brace structure having a first central pivotal attachment point and at least one first distal pivotal attachment point, the at least one first distal pivotal attachment point pivotally attached to the first leg assembly; and a first support bar having first and second ends, the second end of the first support bar pivotally attached to the first central pivotal attachment point of the first brace structure, and the first end of the first support bar disposed between and pivotally coupled to the first proximal end of the first attachment bracket and the second proximal end of the second attachment bracket; and a second support assembly for maintaining the second leg assembly in the use position, the second support assembly comprising: a second brace structure having a second central pivotal attachment point and at least one second distal pivotal attachment point, the at least one second distal pivotal attachment point pivotally attached to the second leg assembly; and a second support bar having first and second ends, the second end of the second support bar pivotally attached to the second central pivotal attachment point of the second brace structure, and the first end of the second support bar disposed between and pivotally coupled to the third proximal end of the third attachment bracket and the fourth proximal end of the fourth attachment bracket.
  • 22. A method for manufacturing a collapsible table comprising the steps of:(a) forming a table top having a substantially planar top surface, a bottom surface opposite the top surface, and opposing first and second channels in the bottom surface; (b) securing opposing first and second frame members to the bottom surface of the table top; (c) pivotally attaching first and second leg assemblies to the first and second frame members, such that the first and second leg assemblies are movable between a use position and a storage position; (d) providing a first brace structure having a first central pivotal attachment point and at least one first distal pivotal attachment point; (e) pivotally attaching the first distal pivotal attachment point of the first brace structure to the first leg assembly; (f) providing a first support bar having first and second ends; (g) pivotally attaching the second end of the first support bar to the first central pivotal attachment point of the first brace structure; (h) providing a first pivot bar; (i) pivotally attaching the first end of the first support bar to the first pivot bar; (j) inserting the first pivot bar into the first channel in the bottom surface of the table top; (k) providing a second brace structure having a second central pivotal attachment point and at least one second distal pivotal attachment point; (l) pivotally attaching the second distal pivotal attachment point of the second brace structure to the second leg assembly; (m) providing a second support bar having first and second ends; (n) pivotally attaching the second end of the second support bar to the second central pivotal attachment point of the second brace structure; (o) providing a second pivot bar; (p) pivotally attaching the first end of the second support bar to the second pivot bar; and (q) inserting the second pivot bar into the second channel in the bottom surface of the table top.
  • 23. The method of claim 22 further comprising:(r) securing the first pivot bar in the first channel by passing at least one screw through the first pivot bar and into an inner surface of the first channel; and (s) securing the second pivot bar in the second channel by passing at least one screw through the second pivot bar and into an inner surface of the second channel.
  • 24. The method of claim 22 wherein:step (f) further comprises providing the first support bar having a first aperture in the first end, where the first aperture has a first diameter sufficient to receive the first pivot bar; step (i) further comprises inserting the first pivot bar through the first aperture in the first support bar; step (m) further comprises providing the second support bar having a second aperture in the first end, where the second aperture has a second diameter sufficient to receive the second pivot bar; and step (p) further comprises inserting the second pivot bar through the second aperture in the second support bar.
  • 25. The method of claim 22 further comprising:(r) providing a handle member having a first handle end and a second handle end; (s) securing the first handle end to the first pivot bar; and (t) securing the second handle end to the second pivot bar.
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Entry
IGLOO It's for Keeps, The Most Lightweight, Durable, Versatile Table You'll Every Carry. (US).