Napkin holder

Information

  • Patent Grant
  • 6257443
  • Patent Number
    6,257,443
  • Date Filed
    Monday, August 31, 1998
    26 years ago
  • Date Issued
    Tuesday, July 10, 2001
    23 years ago
Abstract
A napkin holder comprising an upper wall, a lower wall and first and second sidewalls defining a housing having first and second opposed openings as provided. The holder also includes first and second plates disposed and moveable within the housing. The first and second plates respectively have first and second outer peripheries. The holder further includes a biasing structure disposed between the first and second plates biasing the first plate toward the first opening and the second plate toward the second opening. The biasing structure is disposed substantially within both the first and second outer peripheries. The holder also has first and second apertured doors respectively closing the first and second openings. The first apertured door, the first plate, the upper wall, the lower wall and the first and second sidewalls define a first variable-volume napkin compartment, and the second apertured door, the second plate, the upper wall, the lower wall and the first and second sidewalls define a second variable-volume napkin compartment.
Description




BACKGROUND OF THE INVENTION




1. Field of the Invention




This invention relates to paper dispensers, and more particularly to napkin holders.




2. Description of the Prior Art




In the past, napkin holders have included a multi-piece housing having openings at its longitudinal ends, two apertured doors each hingedly coupled to a respective end of the housing for closing the opening. These doors are maintained in the closed position by elaborate multi-piece structures.




These holders also included two plates disposed in the housing and having a smaller area than the cross-sectional area of the housing. The two plates are each fixedly coupled to a longitudinal end of leaf spring attached at its center to a mechanism disposed on the top wall of the housing. Two variable volume napkin compartments are each formed from one of the plates, and the doors and a portion of the housing.




These type holders suffer several problems. First, they are formed of many pieces which adds more to the raw material and labor costs necessary to construct the holder.




Second, if the leaf spring becomes damaged it is often necessary to replace both the leaf spring and the plates. If the plates can be salvaged and the leaf spring alone needs to be replaced, the replacement is often difficult, time consuming and labor intensive.




Third, each longitudinal end of the leaf spring exerts a force on the plate to which it is affixed independent of the force of the other longitudinal end. Often each of the two napkin holder compartments are overfilled, making it difficult to remove the first few napkins, which cause the napkins to tear or a larger than necessary amount to be removed. Since the force on each plate is independent, both compartments have this problem.




SUMMARY OF THE INVENTION




It is a general object of the invention to provide an improved napkin holder, while affording additional structural and operating advantages.




An important feature of the invention is the provision of a napkin holder which is of relatively simple and economical construction.




A further feature of the invention is the provision of a holder of the type set forth, the napkin capacity of which can easily be determined without opening its doors.




A still further feature of the invention is the provision of a holder of the type set forth, which can easily be repaired.




Yet another feature of the present invention is the provision of a napkin holder which easily allows removal of napkins therefrom, preventing destruction and waste of the napkins and user frustration.




One or more of these features may be attained by providing a napkin holder which includes an upper wall, a lower wall and first and second sidewalls defining a housing having first and second opposed openings. The holder also includes first and second plates disposed and moveable within the housing, the first and second plates respectively having first and second outer peripheries. The holder further includes a biasing structure disposed between the first and second plates biasing the first plate toward the first opening and the second plate toward the second opening, the biasing structure disposed substantially within both the first and second outer peripheries. The holder also includes first and second apertured doors respectively closing the first and second openings. The first apertured door, the first plate, the upper wall, the lower wall and the first and second sidewalls define a first variable-volume napkin compartment and the second apertured door, the second plate, the upper wall, the lower wall and the first and second sidewalls define a second variable-volume napkin compartment.




The invention consists of certain novel features and a combination of parts hereinafter fully described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that various changes in the details may be made without departing from the spirit, or sacrificing any of the advantages of the present invention.











BRIEF DESCRIPTION OF THE DRAWINGS




For the purpose of facilitating an understanding of the invention, there is illustrated in the accompanying drawings a preferred embodiment thereof, from an inspection of which, when considered in connection with the following description, the invention, its construction and operation, and many of its advantages should be readily understood and appreciated.





FIG. 1

is a perspective view of the napkin holder of the present invention;





FIG. 2

is a perspective view, partially broken away of the napkin holder of

FIG. 1

, wherein one of the apertured doors is in an open condition;





FIG. 3

is a is a sectional view of the napkin holder of

FIG. 1

taken generally along line


3





3


of

FIG. 1

;





FIG. 4

is a bottom plan view of the napkin holder of

FIG. 1

;





FIG. 5

is a sectional view taken generally along line


5





5


of

FIG. 3

;





FIG. 6

is an enlarged, partial sectional view taken generally along the line


6





6


of

FIG. 1

; and





FIG. 7

is an enlarged sectional view of the napkin holder indicator and guide channel of FIG.


5


.











DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT




Referring to

FIGS. 1-7

, a napkin holder


10


is provided. The napkin holder includes a one-piece housing


12


. The housing


12


includes a top wall


14


, an apertured.bottom wall


16


, and two substantially parallel sidewalls


18


,


20


. Sidewalls


18


,


20


respectively have end portions


34


,


36


and central portions


38


,


40


respectively disposed between the end portions


34


,


36


.




As best seen in

FIGS. 2

,


4


and


5


, the bottom wall


16


includes a raised portion


22


(or first ply), and a flange


24


(or second ply) attached to the sidewall


18


and disposed underneath the raised portion


22


. The napkin holder


10


also includes four legs


25


connected by rivets


26


to the bottom wall


16


. In that respect, the raised portion


22


is riveted to the flange


24


by two of these rivets


26


to form an integral housing


12


.




The housing


12


has a longitudinal axis and two openings


27


respectively disposed at opposite longitudinal ends of the housing


12


. Each opening


27


is defined in part by an upstanding flange


28


integrally disposed on the bottom wall


16


and side flanges


30


,


32


respectively integrally projecting from the end portions


34


,


36


of sidewalls


18


,


20


. As seen best in

FIG. 4

, the distance between end portions


34


,


36


is less than the distance between central portions


38


,


40


of sidewall


18


,


20


.




The holder


10


also includes two doors


42


. Each door


42


includes a front wall


44


having a substantially rectangular aperture


45


and two sidewalls


46


substantially parallel to one another. Each door


42


is hingedly coupled to the housing


12


by a pair of rivets


48


(or other type fastener) respectively passing through a bottom portion of a sidewall


46


and a bottom portion of an associated end portion


34


,


36


. Each door


42


has a closed position, as seen in

FIG. 1

, wherein the sidewalls


46


are respectively disposed over end portions


34


,


36


and an open position wherein the top of the door


42


is swung away from the housing


12


in the direction of arrow A (FIG.


2


). When the door


46


is in the open position, napkins can easily be placed within the housing


12


.




The doors


42


are maintained in the closed position as follows. Each door sidewall


46


has an aperture


50


at its upper end (FIG.


6


). As seen best in

FIG. 6

, the distance between the door sidewalls


46


is substantially equal to or slightly greater than the distance between the exterior surfaces of end portions


34


,


36


. Each end portion


34


,


36


of the housing sidewalls


18


,


20


has a bulge


52


(or locking projection) respectively projecting therefrom. When the doors


42


are placed in the closed position the bulges


52


are respectively received in the apertures


50


to removeably retain the door


42


in the closed position. The distance between the exterior of the bulges


52


is greater than the distance between the interior of the sidewalls


46


. To accommodate this retaining ability, the doors


42


are formed of a somewhat flexible material, such as a thin metal, so that the portions of sidewalls


46


surrounding the apertures


50


can be flexed to ride over the bulge


52


to allow the bulge


52


to be placed in an aperture


50


to allow the door to be moved to and from the closed position.




Disposed within the housing


12


are first and second substantially planar plates


54


,


56


. Each plate


54


,


56


respectively has an outer periphery, a bottom end and a t-shaped projection


58


,


60


projecting from the bottom end. As seen best in

FIG. 3

, each plate


54


,


56


has an area substantially equal to the cross-sectional area of the housing


12


.




The holder


10


also includes a biasing structure, such as a coil spring


62


disposed in the housing


12


between the plates


54


,


56


. Preferably, the coil spring


62


is not attached to either of the plates


54


,


56


.




As discussed above, the bottom wall


16


is apertured and includes two spaced-apart rectangular apertures


64


running along the center of the width of the bottom wall


16


. Each aperture


64


is formed of two substantially parallel end walls


66


substantially perpendicular to sidewalls


18


,


20


and two substantially parallel sidewalls


68


(

FIGS. 4 and 7

) substantially parallel to sidewalls


18


,


20


.




The napkin holder


10


also includes an insert


70


made of a flexible material, such as plastic, and having two rectangular apertures


72


, each smaller in area than aperture


64


. As discussed below, the apertures


72


act as guide channels for the movement of the plates


54


,


56


. As seen in

FIGS. 4

,


5


and


7


, the insert


70


has two spaced-apart pairs of legs


74


. As best seen in

FIG. 7

, each leg


74


has a portion


76


for contacting sidewall


68


of aperture


64


, a locking shoulder


76


to engage the exterior of the bottom wall


16


and a sloped portion


78


. Each leg


74


has a length slightly less than the length of sidewall


68


of aperture


64


of the bottom wall


16


. The insert


70


is connected to the bottom wall


16


of the housing


12


by pushing the sloped portion


78


of the legs


72


through aperture


64


until the shoulder


76


clears the exterior bottom wall


16


snap-locking the shoulders


76


into place in a known manner.




When the holder


10


is fully assembled, the plates


54


,


56


are substantially parallel to each other and the t-shaped projections


58


,


60


of plates


54


,


56


are respectively disposed through an aperture


72


of the insert


70


(and an aperture


64


of the bottom wall


16


) and have portions which lie outside the housing


12


. The coil spring


62


, as seen in

FIGS. 3 and 5

is disposed within the housing


12


between the plates


54


,


56


within the outer periphery of both the plates


54


,


56


. The coil spring


62


exerts a principal force on plates


54


,


56


that is substantially perpendicular to each plate


54


,


56


and substantially parallel to the bottom wall


16


forcing the plates toward respective openings


27


. As discussed below, the force exerted by the coil spring


62


on each plate


54


,


56


is substantially equal.




As seen in

FIGS. 3 and 4

, plate


54


, sidewalls


18


,


20


and the door


42


form a first variable volume napkin compartment


90


and plate


56


, sidewalls


18


,


20


and the door


42


form a second variable volume napkin compartment


92


.




Napkins


100


are placed in compartments


90


,


92


by placing a respective door


42


in an open condition and increasing the volume of the respective compartments


90


,


92


by pushing the plate


54


or


56


toward the center of the napkin holder


10


thereby compressing the coil spring


62


. The napkins


100


are retained in place by returning the door


42


back to its closed position. The more napkins


100


placed in the compartments


90


,


92


, the closer the respective plates


54


,


56


are moved to the center of the napkin holder


10


.




Napkins


100


are removed through the apertures


45


, in a known manner. When napkins


100


are removed, the respective plate


58


,


60


move closer to a respective door


42


and the volume of the respective compartment


90


,


92


becomes smaller. The walls of apertures


64


and


72


through which the t-shaped projections


58


,


60


of plates


54


,


56


are disposed, act as channels to guide the plates


54


,


56


to move along the longitudinal axis of the housing As seen in

FIGS. 3 and 4

, the t-shaped projections


58


,


60


disposed outside and underneath the housing


12


act as visual indicators to indicate the amount of napkins in each compartment


90


,


92


thereby advantageously not requiring a user to open the doors


42


to insert the amount of napkins in compartments


90


,


92


. The t-shaped projections


58


,


60


also help maintain the plates


54


,


56


within the napkin holder


10


, when the doors


42


are opened to refill the napkins


100


.




The present invention has significant advantages over the prior napkin holders. First, since the coil spring


62


exerts a principle force perpendicular to plates


54


,


56


, the plates


54


,


56


respectively apply an outward force generally over the entire area of the napkins which prevents bunching or wrinkling of the napkins


100


.




Additionally, since the coil spring


62


applies the same force on both plates


54


,


56


, waste, destruction and excess removal of napkins is prevented. When the compartments


90


,


92


are overfilled, the first few napkins are difficult to remove since the coil spring


62


is highly compressed and exerts a large force on both plates


54


,


56


. As referred to earlier, the result is tearing and excess removal of the napkins when the napkins are removed from one of the overfilled compartments


90


or


92


. Advantageously, only one compartment


90


or


92


may be so effected because when, for example, napkins are removed from compartment


90


, the coil spring


62


elongates and applies less force to both plates


54


,


56


and thus makes it easier to remove napkins


100


from both compartment


92


, as well as compartment


90


.




While particular embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the invention in its broader aspects. Therefore, the aim in the appended claims is to cover all such changes and modifications as fall within the true spirit and scope of the invention. The matter set forth in the foregoing description and accompanying drawings is offered by way of illustration only and not as a limitation. The actual scope of the invention is intended to be defined in the following claims when viewed in their proper perspective based on the prior art.



Claims
  • 1. A napkin holder comprising:an upper wall, a lower wall and first and second sidewalls defining a housing having first and second opposed openings and a guide member on one of said walls; first and second plates disposed and moveable within the housing, the first and second plates respectively having first and second outer peripheries; guide structure on one of said first and second plates for cooperation with said guide member on said housing walls biasing structure freely disposed between the first and second plates biasing the first plate toward the first opening and the second plate toward the second opening, the biasing structure disposed substantially within both the first and second outer peripheries; and first and second apertured doors respectively closing the first and second openings, the first apertured door, the first plate, the upper wall, the lower wall and the first and second sidewalls defining a first variable volume napkin compartment, the second apertured door, the second plate, the upper wall, the lower wall and the first and second sidewalls defining a second variable volume napkin compartment, wherein said guide member and said guide structure cooperate during movement of at least one of said plates forward and away from the respective first and second openings.
  • 2. The holder of claim 1, wherein the biasing structure respectively applies first and second biasing forces on the first and second plates, wherein the first and second biasing forces are substantially equal.
  • 3. The holder of claim 1, wherein the biasing structure is a coil spring.
  • 4. The holder of claim 1, wherein the first and second plates are substantially planar and substantially parallel to one another, and the biasing structure exerts a principal force on and substantially perpendicular to the first and second plates.
  • 5. The holder of claim 1, wherein the first and second projections are t-shaped.
  • 6. The holder of claim 1, wherein the upper wall, the lower wall, and the first and second sidewalls are a one-piece construction.
  • 7. A napkin holder comprising:an upper wall, a lower wall and first and second sidewalls defining a housing having first and second opposed openings; first and second plates disposed and moveable within the housing; biasing structure disposed between the first and second plates biasing the first plate toward the first opening and the second plate toward the second opening; and first and second apertured doors respectively closing the first and second openings, the first apertured door, the first plate, the upper wall, the lower wall and the first and second sidewalls defining a first variable-volume napkin compartment, the second apertured door, the second plate, the upper wall, the lower wall and the first and second sidewalls defining a second variable volume napkin compartment; and first and second indicators respectively indicating the amount of napkins in the first and second napkin compartments, each of the first and second indicators having a portion disposed outside the housing.
  • 8. The holder of claim 7, wherein the bottom wall has two apertures respectively defining first and second channels and the first and second indicators respectively project from the first and second plates and are respectively disposed through the first and second channels.
  • 9. The holder of claim 8, wherein the first and second indicators are t-shaped.
  • 10. The holder of claim 7, wherein the upper wall, the lower wall, and the first and second sidewalls are a one-piece construction.
  • 11. The holder of claim 10, wherein a portion of the bottom wall is formed of a first ply coupled to and extending from the first sidewall and a second ply coextensive with the remainder of the bottom wall overlapping the first ply, and further comprising at least one leg and a fastener coupling the first ply to the second ply and the leg to the first and second plies.
  • 12. The holder of claim 7, wherein the first and second sidewalls respectively have first and second locking projections and the first door has first and second apertures respectively sized to receive the first and second locking projections to removeably retain the first door in a closed position closing the first opening.
  • 13. The holder of claim 12, wherein the first and second sidewalls respectively have third and fourth locking projections and the second door has third and fourth apertures respectively sized to receive the third and fourth locking projections to removeably retain the second door in a closed position closing the second opening.
  • 14. A napkin holder comprising:an upper wall, a lower wall and first and second sidewalls defining a housing having first and second opposed openings and a longitudinal axis; first and second substantially planar plates disposed and moveable within the housing, the first and second plates disposed substantially parallel to one another, the first slate including a guide member; biasing structure respectively biasing the first plate toward the first opening and the second plate toward the second opening; first and second apertured doors respectively closing the first and second openings, the first apertured door, the first plate, the upper wall, the lower wall and the first and second sidewalls defining a first variable-volume napkin compartment, the second apertured door, the second plate, the upper wall, the lower wall and the first and second sidewalls defining a second variable-volume napkin compartment; and guiding structure integrally formed in one of the walls of the housing engageable with the first guide member, wherein the guide member and guide structure cooperate to guide the first plate in a direction substantially parallel to the longitudinal axis.
  • 15. The holder of claim 14, wherein the biasing structure is a coil spring freely disposed between the first and second plates.
  • 16. The holder of claim 14, wherein the guide structure includes an aperture defining a channel and the guide member includes a projection disposed through the channel.
  • 17. The holder of claim 16, wherein the aperture is disposed in the bottom wall and the projection is t-shaped.
  • 18. A napkin holder comprising:an upper wall, a lower wall and first and second sidewalls defining a housing having first and second opposed openings; first and second plates disposed and moveable within the housing, the first and second plates respectively having first and second outer peripheries; said lower wall having two apertures respectively defining first and second channels and the first and second plates respectively have first and second projections respectively disposed through the first and second channels, biasing structure freely disposed between the first and second plates biasing the first plate toward the first opening and the second plate toward the second opening, the biasing structure disposed substantially within both the first and second outer peripheries; and first and second apertured doors respectively closing the first and second openings, the first apertured door, the first plate, the upper wall, the lower wall and the first and second sidewalls defining a first variable-volume napkin compartment, the second apertured door, the second plate, the upper wall, the lower wall and the first and second sidewalls defining a second variable-volume napkin compartment.
Foreign Referenced Citations (1)
Number Date Country
695150 Sep 1964 CA
Non-Patent Literature Citations (5)
Entry
Copy of photograph of Alwin napkin holder model 31, sold prior to Aug. 31, 1997.*
Copies of photographs of Traex Corp. napkin dispenser model 6509-12, sold prior to Aug. 31, 1997.*
Copies of photographs of Alwin napkin holder model 35, sold prior to Aug. 31, 1997.*
Copies of photographs of Alwin napkin holder model F7571, sold prior to Aug. 31, 1997.*
Copy of photograph of Alwin napkin holder model 35, sold prior to Aug. 31, 1997.