Food Tray with Informational Insert
A food tray has upper and lower tray shaped members and an informational insert sandwiched between them for viewing of an informational display of the insert through a transparent or translucent window portion of at least one of the tray-shaped members. Two interlocking mechanisms are operable to reliably secure the tray members to one another when engaged together by sliding of the lower tray member into place along an underside of the upper tray member. The insert includes a rear wall portion disposed between upstanding rear walls of the tray members, and a height of the upper tray member is reduced at a front edge thereof to provide optimal viewing of the opposing rear wall portion of the insert. A seal positively positioned in a groove of the lower tray member provides a water tight seal between the tray members to protect the informational insert.
This application claims benefit under 35 U.S.C. 119 of U.S. Provisional Patent Application No. 61/717,198, filed Oct. 23, 2012 and Canadian Patent Application No. 2,819,051, filed Jun. 11, 2013.
FIELD OF THE INVENTIONThe present invention relates generally to food trays useful in cafeterias, food courts and the like, and more particularly to food trays that incorporate an information insert between a lower tray member and an upper tray or cover member to display advertising or other information to the user.
BACKGROUND OF THE INVENTIONPrior art has previously proposed to provide a tray with an advertising or other informational display by mounting an informational insert between the tray and a transparent or translucent cover. Examples of such prior art can be found in Patent and Patent
Application Publications CH149581, JP7047024, U.S. Pat. No. 4,928,411, US20020096529, US20060243632, US20060253322, WO9003140, and WO1999029217.
However, there remains room for improvement, and applicant has developed a new solution with advantageous features not found in the prior art.
SUMMARY OF THE INVENTIONAccording to a first aspect of the invention there is provided a food tray comprising:
a lower tray-shaped member comprising a base panel with a perimeter having a front edge, an opposing rear edge and two opposing side edges joining the front and rear edges of the lower tray-shaped member at opposing ends thereof,
an upper tray-shaped member comprising a base panel with a perimeter having a front edge, an opposing rear edge and two opposing side edges joining the front and rear edges of the upper tray-shaped member at opposing ends thereof;
a first interlock mechanism comprising male and female features arranged in mating pairs on opposing ones of the lower tray-shaped member and upper-tray shaped member and configured to engage each mating pair together under relative sliding of the base panel of the lower tray-shaped member into an engaged position underlying the base panel of the upper tray-shaped member by relative sliding of the front edge of the lower tray-shaped member under the base panel of the upper tray-shaped member from the rear edge of said upper tray-shaped member toward the front edge thereof;
a second interlock mechanism operable to further engage the upper and lower tray-shaped members together with the male and female features of the first interlock system engaged and the lower tray-shaped member in the engaged position underlying the upper tray-shaped member, to thereby secure the first interlock mechanism against disengagement; and
an information insert for insertion between the upper and lower tray-shaped members to hold the information insert in a sandwiched position between the upper and lower tray shaped members with an informational display of the insert visible through a transparent or translucent window portion of at least one of the tray-shaped members.
Preferably the first interlock mechanism comprises a male-female interface between the upper and lower tray members at lateral extents of the lower tray member.
Preferably each male-female interface comprises a side rail running respectively along one of the opposing side edges of the base panel of the upper tray member at an underside of said base panel of the upper tray member for sliding engagement of the side rail with a respective one of the opposing side edges of the base panel of the lower tray member.
Preferably each rail presents an inward facing channel that opens toward the other rail and extends toward the front edge of the base panel of the upper tray member from an end of the rail adjacent the rear edge of the base panel of the upper tray member, each channel being dimensioned for sliding receipt therein of the respective one of the opposing sides edges of the base panel of the lower tray member.
Preferably the upper and lower tray members comprise respective rear walls upstanding from the base panels of said upper and lower tray members along the rear edges thereof.
Preferably there are provided fastener bores in the rear wall of the lower tray member for engagement of fasteners with the upper tray member at the rear wall thereof through the fastener bores in the rear wall of the lower tray.
Preferably the rear wall of the upper tray member has bosses projecting rearwardly therefrom for engagement of the fasteners with said bases through the fastener bores in the rear wall of the lower tray.
Preferably the information insert comprises a base portion for placement between the base panels of the upper and lower tray-shaped members, and at a rear wall portion angling from a rear edge of the base portion to lie between the respective rear walls of the tray-shaped members at a transparent or translucent portion of the rear wall of the upper tray member.
Preferably a height of the upper tray member over at least a partial length of the front edge of the base panel thereof is less that at an opposing portion of the rear wall of the upper tray-shaped member at the transparent portion thereof at which the rear wall portion of the information insert resides.
Preferably the upper tray-shaped member comprises a downwardly protruding lip adjacent the front edge thereof, and the first interlock mechanism comprises at least one pair of front mating features defined on opposite ones of the front edge of the lower tray-shaped member and a rear facing side of the lip of the upper tray-shaped member.
Preferably the second interlock mechanism comprises at least one threaded fastener operable to lock the upper and lower tray-shaped members together.
Preferably there is provided a groove running around a perimeter of one of the tray members in a face thereof that faces toward the other one of the tray members when engaged, and a seal dimensioned to reside in the groove to provide a fluid tight sealing action between the tray members when engaged together.
Preferably there are provided openings or recesses in the one of the tray members in which the groove is formed, the openings or recesses being in communication with the groove to receive respective enlargements on the seal for insertion of the enlargements into the openings or recesses during seating of the seal in the groove.
Preferably the groove is formed in the lower tray member.
There may be provided an opening in the lower tray-shaped member and a valve installed at the opening and operable to limit access of fluids to space defined between the tray-shaped members and provide a mode of fluid exit from said space.
The valve may comprise an air permeable membrane that allows water vapour to exit the space between the tray-shaped members and prevents liquid from entering said space.
The opening may be positioned in the base panel of the lower tray-shaped member.
According to a second aspect of the invention there is provided a food tray comprising:
a lower tray-shaped member;
an upper cover member arranged for mounting over at least a portion of the lower tray-shaped member;
a transparent or translucent window portion in at least one of the lower tray-shaped member and the upper cover member; and
an information insert for insertion between the upper cover member and the lower tray-shaped member to hold the information insert in a sandwiched position between the upper cover member and the lower tray shaped member with an informational display of the insert visible through the transparent or translucent window of the upper cover member;
wherein at least one of the lower tray-shaped member and the upper cover member has an opening therein and a valve installed at the opening and operable to limit access of fluids to space defined between the tray-shaped member and the cover member and provide a mode of fluid exit from said space.
According to a third aspect of the invention there is provided a food tray comprising:
a lower tray-shaped member comprising a base panel with a perimeter having a front edge, an opposing rear edge and two opposing side edges joining the front and rear edges of the lower tray-shaped member at opposing ends thereof, and a rear wall upstanding from the base panel along the rear edge thereof;
an upper cover member arranged for mounting over at least the rear wall of the lower tray-shaped member and comprising a transparent or translucent window portion; and
an information insert for insertion between the upper cover member and the lower tray-shaped member to hold the information insert in a sandwiched configuration between the upper cover member and the lower tray shaped member with an informational display of the insert positioned over the rear wall of the lower tray-shaped member and visible through the transparent or translucent window of the upper cover member;
wherein a height by which food tray reaches upwardly past the base panel of the lower tray-shaped member at the front edge thereof is less than a height by which the informational display of the information insert reaches upwardly from the base panel of the lower tray-shaped member at the rear wall thereof.
According to a fourth aspect of the invention there is provided a food tray comprising:
a lower tray-shaped member,
an upper tray-shaped member;
an interlock mechanism operable to engage the lower and upper tray shaped members together in an engaged condition in which the base panel of the lower tray-shaped member underlies the base panel of the upper tray-shaped member;
an information insert for insertion between the upper and lower tray-shaped members to position an informational display to hold the information insert in a sandwiched position between the upper and lower tray shaped members with an informational display of the insert visible through a transparent or translucent window portion of at least one of the tray-shaped members.
a groove extending around a perimeter of a grooved one of the tray members in a face of said grooved one of the tray members that faces toward the other one of the tray members;
openings or recesses in said grooved one of the tray members at positions spaced apart along, and communicating with, the groove;
a seal for seating within the groove to create a water tight seal between the tray members in the engaged condition, the seal having enlargements defined thereon at spaced apart positions along the seal that match up with the positions of the openings or recesses in said one of the tray members, whereby receipt of the enlargements within the openings or recesses positively positions the seal within the groove.
In the accompanying drawings, which illustrate exemplary embodiments of the present invention:
The upper tray 12 features a rectangular base panel 24 whose four-sided perimeter defines a front edge 24a, a rear edge 24b parallel to and opposite the front edge 24a, and two side edges 24c, 24d that lie parallel and opposite to one another to join the front and rear edges at both ends thereof. A rear wall 26 stands upward from the base panel 24 along the rear edge 24b thereof at a slight incline sloping outward from over the base panel.
A pair of side walls 28, 30 stand upward from the base panel 24 along the opposing side edges thereof each extend from the rear wall 26 to the front edge of the base panel. The side walls 28, 30 are shorter than the rear wall. The rear wall is substantially uniform in height over its full length. The side walls are shorter than the rear wall over the full length of each side wall, and also incline slightly outward from the respective edges of the base panel. A side flange 32 projects laterally outward from each side wall 28, 30 over part of its length from the rear wall 26, but stopping well short of the front edge of the base panel. Each side wall is uniform in height over the length of the respective side flange, and then reduces in height through a linear downward slope toward the front edge 24a of the base panel 24.
As best shown in
Referring to
As best shown in
As best shown in
Referring now to
Referring to
Referring to
Turning back to
The first embodiment tray is assembled as follows. The informational insert 16 seated atop the lower tray 12 so that the base panel portion 224 of the insert overlies the topside of the base panel 124 of the lower tray 12 and the membrane recessed therein. The side walls portion 228, 230 of the insert 16 overlie the inner faces of the side walls 128, 130 of the lower tray 12, the side flange portions 232 of the insert 16 overlie the side flanges 132 of the lower tray and the rear wall portion 226 of the insert 16 overlies the front face of the rear wall 126 of the lower tray 12. The dimensions of the insert are such that the insert stops short of the boundaries of the lower tray around the full perimeter thereof.
The top tray 14 is slid onto the bottom tray from the front side thereof, or the stacked bottom tray 12 and insert are slid under the top tray from the rear side thereof with all thee of these components having their widths in general alignment with one another, whereby the tray members slide relative to one another along the parallel planes of their base panels in a direction drawing the front edges of the two trays toward one another and the rear edges of the trays toward one another. The side flanges of the two trays likewise slide along one another through this process.
Under sufficient relative sliding of the trays in this manner, the tabs 144 at the front end of the of the lower tray are brought into mating engagement within the matching slots 144 are the rear face 42 of the top tray's front lip 40, which coincides with mating insertion of the rectangular protrusions 52 on the back of rear wall 26 of the upper tray 14 into the rectangular recesses at the front of the rear wall 126 of the lower tray 12, and the mating insertion of the front and rear nubs 148, 150 of each side flange 132 of the lower tray 12 into the front and rear notches 48, 50 of the upper tray 14. This sliding of the trays into this engaged state also inserts the bosses 56 at the rear corners of the top tray 14 into the front ends of the through-bores 156 at the rear corners of the lower tray, abutting each boss against the front face of a reduced diameter central portion of the respective through-bore.
With the upper and lower trays mated in this manner, rear walls and side walls of the two trays lies closely adjacent one another, with respective portions of the informational insert sandwiched between the trays at these walls and at the base panels and side flanges of the trays 12, 14. The male/female engagement of the tabs and slots, nubs and notches, and protrusions and recesses at the front, rear and sides of the trays provides a first interlocking action between the trays in order to effectively hang the lower tray from the upper tray in close adjacency thereto in order to securely retain the informational insert in a sandwiched condition between the two trays.
A second interlocking action is provided by threading a respective headless set screw or headed threaded fastener 18 into the matingly threaded bore of each of the internally threaded bosses 56 of the top tray 14 through the respective through-bore 156 in the rear of the lower tray. This threaded engagement prevents sliding of the trays relative to one another along the parallel planes of their base panels, thereby preventing disengagement of the first interlocking action. The male-female engagement of the trays along the parallel axes of the male-female pairings of slots and tabs, protrusions and recesses, and nubs and notches prevents vertical separation of the trays. The abutment of the front edge of the lower tray against the rear face of the front lip of the upper tray prevents separation of the trays in one horizontal direction, and the threaded fasteners prevent separation of the trays in the other horizontal direction. Use of slide-together male female features on all sides of the tray provides significant stability in the closely-abutted sandwiched configuration of the trays and insert around the full perimeter thereof with only a minimal number of threaded fasteners, thereby easing the assembly and disassembly process. It will be appreciated that the second interlocking action may be provided by means other than threaded fasteners, for example using snap-fit fasteners or quarter-turn fasteners, and that the fasteners may be engaged between the two trays at locations other than at the rear walls thereof. Where threaded fasteners are used, internally threaded metal inserts may be used within the trays to increase the strength and integrity of the threaded connection compared to embodiments where the plastic of the trays forms the threads to which the fasteners engage.
The informational insert may have printed advertising or other information or indicia on any one of more of its different portions. In the illustrated embodiments, the top tray is transparent or sufficiently translucent over its full expanse to maximize the possible advertising space of the assembled tray by allowing viewing of the insert over the full area of the trays. Other embodiments may employ one or more translucent or transparent viewing windows spanning only partial portions of the overall upper tray, with other portions of the upper tray being opaque or otherwise obscured. With the reduced height of the tray assembly at the front edge thereof, as provided by the reduced height of top tray at all or part of the front edge thereof, a user is intended to use this front edge of the tray assembly as the access area from which they reach food or beverage items occupying the base panel of the top tray member. Such orientation of the assembled tray relative to the user places the large, upright rear wall of the top tray, and thus the rear wall portion of the insert, at a position and orientation readily viewable to the tray user with minimal obscuring of the same from the front of the tray, thereby increasing the advertising or informational effectiveness compared to prior art trays that employ only base-panel insert placement or have wall-placed advertisement features that are obscured by other equal-height walls around the perimeter of the tray.
A groove 160 runs around the perimeter of the lower tray 14, along the front edge 124a of the lower tray base panel 124, up the front edge of the side wall and along the top edge thereof to the respective side flange 132, where it runs around the top side of the respective side flange, first outwardly along the front edge of the side flange, rearwardly along the outer side edge of the side flange, and then back inwardly along the rear edge of the side flange, from where it then runs across the rear wall 126 of the lower panel at the top edge thereof. A gasket (not shown) is placed in the groove 160 prior to assembly of the trays to form a seal between the trays around the full perimeter thereof outside of the area spanned by the informational insert sandwiched between the trays.
At the top edge of the rear wall of the lower tray, the gasket seals against the overhang 54 at the top edge of the rear wall of the upper tray. The gasket also seals between the topside of the lower tray side flanges and underside of the upper tray side flanges, the rear ends of which are continuous integral extensions of the rear wall overhang 54.
On each side of the top tray, a respective out-turned connection lip 62 integrally connects the downturned lip 40 at the front edge of the top tray with the downturned lip 46b at the front edge of the respective side flange 32, first running up the front edge of the respective side wall and then rearward along the top edge thereof, as best shown in
The Gore-Tex™ membrane 20 recessed into the top face of the lower tray base panel to enable flush seating of the information insert over the base panel, acts to help protect the information insert 16 and trays from moisture-related complications. Gore-Tex™ fabric is known to allow air, and water vapour molecules in the air, to pass through it in one direction, while preventing passage of liquid water through the fabric in the opposing direction. Accordingly, the membrane is oriented in a position allowing water vapour to escape from the space between the trays while preventing liquids from accessing this space through the membrane-covered opening in the bottom tray. Through cooperation of the gasket and membrane, the assembly thus remains significantly water-tight to protect the informational insert, while still allowing escape of water vapour that may have become trapped inside the assembly. The membrane thus acts as a valve to control entry and exit of fluids to and from the insert-containing space of the assembly by preventing liquid access while allowing vapour discharge. An example of another membrane material which may be employed is Tyvek™.
The top and bottom trays are preferably formed of sufficiently rigid molded plastic, although other materials or constructions capable of providing a full or partial area viewing window in the top tray and sufficient rigidity in the overall tray assembly to support the weight of food and beverage items may be employed. The bottom tray may be opaque, transparent or translucent. In embodiments where the bottom try is transparent over at least a portion of its surface area, the insert may be printed on both sides to enable viewing of information on the insert through both the top tray and bottom tray. The trays therefore may be configured to not only display information as viewed from the front and top of the assembly, but also from one or more of the sides, rear and underside of the assembly. The insert may be made of paper or cardstock, or other relatively thin materials or structures capable of displaying advertising or other information printed or otherwise displayed on the insert.
While the first embodiment features rectangular trays with side and rear walls, it will be appreciated that other tray shapes and wall configurations that still allow engagement of the trays together through relative sliding between the base panels may alternatively be employed. For example, even circular trays with curved side edges, or polygonal trays with non-parallel linear segments at its side edges, may still slide together in the back-front direction if there are no side walls that would block sliding in this direction.
More particularly, while the second embodiment tray assembly 10′ uses the same tab and slot engagement of the upper and lower trays 14′ at the front edge of the lower tray and the front edge lip 40′ of the upper tray, the lack of side walls and side flanges in the lower tray prevents use of the flange-mounted nubs and notches of the first embodiment. Instead, referring to
Turning to
The engagement of the lower tray side edge 204 with the side edge rail channels 202 of the upper tray thus forms a male-female engagement of features at the sides or outermost lateral extents of the lower tray in order to engage the trays together, much like the mating of the nubs and notches at the side flanges of in the wider side-flanged lower tray of the first embodiment. It will be appreciated that forward and lateral jutting nubs at the front and rear ends of the side edge of the lower tray may alternatively cooperate with notches in the downturned side lip 200 and front lip 40′ instead of using a slide-rail engagement over the substantially full length of the tray side edges. However, the slide-rail fit may provide improved self-alignment when mating the two trays together. Each bottom corner of the rear wall 126′ of the lower tray 12′ may jut laterally outward past the reach of the overhanging side edge 204 of the lower tray 12′, as best shown at 208 in
Another difference in the second embodiment compared to the first is the presence of through-holes 210 in the lower tray 12′ at locations within, and spaced apart along, a groove that extends fully around the perimeter of the lower tray at the top face of the base panel and front face of the rear wall (like groove 160 of the first embodiment). The groove is again intended for seating therein of a seal 212 therein that is suitably sized and made of suitable water tight resilient material, for example silicone, to form a water tight sealed condition between the two tray's when engaged and fastened together. As shown in
Although not shown the drawings, o-ring seals may be disposed around each of the threaded fasteners to better maintain a liquid tight condition between the tray members.
Another feature unique to the second embodiment tray assembly is the presence of one or more sets of adjacent parallel ridges 216 lying perpendicular to the side edges of the base panel 124′ of the lower tray 12′ on the underside thereof, for example near the four corners of the base panel 124′ as shown in
Claims
1-20. (canceled)
21. A food tray comprising:
- a lower tray-shaped member comprising a base panel with a perimeter having a front edge, an opposing rear edge and two opposing side edges joining the front and rear edges of the lower tray-shaped member at opposing ends thereof, and a rear wall upstanding from the base panel along the rear edge thereof;
- an upper cover member arranged for mounting over at least the rear wall of the lower tray-shaped member and comprising a transparent or translucent window portion; and
- an information insert for insertion between the upper cover member and the lower tray-shaped member to hold the information insert in a sandwiched configuration between the upper cover member and the lower tray shaped member with an informational display of the insert positioned over the rear wall of the lower tray-shaped member and visible through the transparent or translucent window of the upper cover member;
- wherein a height by which food tray reaches upwardly past the base panel of the lower tray-shaped member at the front edge thereof is less than a height by which the informational display of the information insert reaches upwardly from the base panel of the lower tray-shaped member at the rear wall thereof.
22. The food tray of claim 21 wherein the lower tray-shaped member comprises side walls upstanding from the side edges of the base panel thereof, the side walls being of a height less than the height by which the informational display of the information insert reaches upwardly from the base panel of the lower tray-shaped member at the rear wall thereof.
23. (canceled)
24. A food tray comprising:
- a tray-shaped member comprising a base panel with a perimeter having a front edge, an opposing rear edge and two opposing side edges joining the front and rear edges of the tray-shaped member at opposing ends thereof, and a rear wall upstanding from the base panel along the rear edge thereof;
- a cover situated over at least the rear wall of the tray-shaped member and comprising a transparent or translucent window portion; and
- an information insert between the cover and the tray shaped member with an informational display of the insert positioned over the rear wall of the tray-shaped member and visible through the transparent or translucent window of the cover member;
- wherein a front height of the food tray measured upwardly from the base panel of the tray-shaped member at the front edge thereof is less than a height by which the informational display of the information insert reaches upwardly along the rear wall of the tray-shaped member from the base panel.
25. The food tray of claim 24 comprising upstanding side walls extending along the side edges of the base panel, the side walls reaching a side height measured from the base panel that is less than the height by which the informational display of the information insert reaches upwardly along the rear wall of the tray-shaped member from the base panel.
26. The food tray of claim 25 comprising partial length front walls extending along respective partial lengths of the front edge of the base panel of the tray-shaped member on opposite sides of a central front portion of the food tray that defines the front height of the food tray, the front wall portions reaching a greater height above the base panel of the tray-shaped member than the central front portion.
27. The food tray of claim 24 wherein the cover comprises a base panel area overlying the base panel of the tray-shaped member and a rear wall area overlying the rear wall of the tray-shaped member, and the information insert comprises a base portion placed between the base panel of the tray-shaped member and the base panel area of the cover and a rear wall portion angling from a rear edge of the base portion to lie between the rear wall of the tray-shaped member and the rear wall area of the cover at a transparent or translucent portion of the rear wall area of the cover.
Type: Application
Filed: Oct 22, 2013
Publication Date: Apr 24, 2014
Inventors: Gregory Lipschitz (Winnipeg), Kyle Boult (Winnipeg), Jonathan Liberty (Barrie), Leo Zhang (Hong Kong)
Application Number: 14/059,568
International Classification: B65D 25/20 (20060101);