Stackable multi-component tote
A stackable tote may be stacked with other identical or similar totes and/or existing, prior tote designs. The tote is assembled from at least one box blank, a base and a top rail. When folded into the appropriate shape, the box blank results in the sidewalls of the tote. To hold the erected box blank in an assembled relationship and to reinforce the top and bottom edges of the tote, a channel shaped top rail extends around the top edge of the tote and the bottom edge of the sidewalls is seated within a channel in the base. The top rail and base are secured to the sidewalls as the result of an inwardly extending hook in the associated channels which engages the folded tabs of the sidewalls. One advantage of this invention is that a lightweight, stackable tote or container may be quickly and easily manufactured in a designed size or height. The tote of this invention may be stacked above or below the same or similar types of totes as well as existing tote designs.
Latest Patents:
- Semiconductor device comprising magnetic tunneling junctions with different distances/widths in a magnetoresistive random access memory
- Shader-based dynamic video manipulation
- Methods of forming integrated assemblies with improved charge migration impedance
- Methods and apparatus to automate receivability updates for media crediting
- Basketball hoop
This invention relates to totes and more particularly to totes made from foldable blanks with components to hold the blanks in an erected, assembled relationship for stacking.
BACKGROUND OF THE INVENTIONA wide variety of container structures are used by manufacturers to store and ship a variety of different products. In the automobile industry for example, an assembly plant assembling a particular automobile might use a number of different parts from different manufacturers. These manufacturers ship their respective parts to the assembly plant in containers where the parts are then removed from the containers and assembled into a finished automobile. The containers are also used to store or transport the various parts within the assembly plant.
Containers are useful for the transportation, storage, and display of goods in manufacturing facilities. Such containers, commonly called totes, must be of sufficiently rigid construction to enable safe and damage free transport and storage of the goods contained therein. These totes are frequently designed so as to be stacked or mounted in a nesting relation for convenient transportation or storage.
Although such totes or containers have proven adequate, they have various drawbacks. First, the totes are typically injection molded and such containers are heavy, which makes shipping and handling more difficult, dangerous and expensive. Assembly line workers are often unable to move the heavy containers with ease. Often times, the weight of the injection molded container is far greater than the weight of the parts therein. In such situations, a more lightweight, but structurally sound, container would be desirable.
Another drawback to these containers is that the injection molded totes only are available in a limited number of sizes. The availability of different size containers is desired, but often limited by cost and manufacturing economies. It is expensive, difficult and time consuming, if possible at all, to provide such injection molded totes in a variety of sizes.
Another drawback to the use of these containers is that each manufacture of injection molded containers has a unique design which is adapted to only be stacked with similar containers. Again, however, they are not always compatible with containers made by other manufacturers. Therefore, a user may be limited to one container manufacturer if the user wishes to be able to stack these injection molded containers.
Accordingly, there is a need for a lightweight, sturdy tote or container which may be used in conjunction with existing totes for stacking purposes.
There is further a need for a such a container which may be quickly, easily and economically made to any desired height or size.
SUMMARY OF THE INVENTIONThese and other objectives of the invention have been attained by a stackable tote manufactured to be stacked with other similar totes and/or existing, prior tote designs.
This invention is directed to a tote which is assembled from at least one box blank, a base and a top rail. When folded into the appropriate shape, the blank results in the sidewalls of the tote. A single blank may be used alone or in combination with other blanks for the tote. The blanks may be corrugated plastic, paperboard or other suitable material and may be die cut to the appropriate configuration and desired height.
To hold the erected blank in an assembled relationship and to reinforce the edges of the tote, a channel shaped top rail extends around the top edge of the blanks and a base is mounted to the bottom edge of the blanks. The base and top rail both have an open channel formed between a pair of channel walls. The channels fit over a double thickness of the sidewalls formed from tabs or flaps extending upwardly or downwardly from the sidewalls of the blank. The top rail and base are locked onto the top edge and bottom edge, respectively, of the blank as the result of an inwardly extending hook on at least one channel wall which snaps onto the folded tabs on the upper and lower edges of the sidewalls.
The base and top rail are each, in certain embodiments, manufactured from a single piece of extruded plastic or aluminum and may be injection molded. Alternatively, the base and top rail may each be constructed of multiple pieces of material welded or otherwise joined together. The inwardly extending hooks on the channel wall engage the folded tab on the sidewalls thereby securing the top rail and base onto the edges of the sidewalls without the need for further fasteners such as screws, rivets, or staples. The configuration of the top rail and base enables nested stacking of additional totes. The base of each tote has a configuration which mates with the top rail.
One advantage of this invention is that a lightweight, stackable tote or container may be quickly and easily manufactured in a desired size or height. The tote of this invention may be stacked above or below the same or similar types of totes as well as existing tote designs. In this manner, the container may be integrated into an existing inventory of totes. The base and top rail configurations mate with each other and existing tote designs. Likewise, the base and top rail can be attached to blanks of a variety of heights based on user needs and not just the tote manufacturer's molding machinery specifications.
This invention provides a container which is lightweight enough that a worker may be able to easily move the container even when it is filled. Another advantage of this invention is that a stackable container of a desired size may be manufactured more quickly and less expensively than is presently possible with other such containers.
The tote can be used alone, in combination with one or more other totes or in combination with one or more existing containers. Because the blanks of the tote can be made in a variety of sizes which can be cut to suit, customized solutions are quickly realizable. The piecewise assembly of the components permits users to achieve a wide variety of container solutions to specific components. For example, the top rail and base may be reused with different blanks in alternative applications.
BRIEF DESCRIPTION OF THE DRAWINGSThe objectives and features of the present invention will become more readily apparent when the following detailed description of the drawings is taken in conjunction with the accompanying drawings in which:
Referring to
As best illustrated in
If desired, the tote sidewalls 14 may be formed from four blanks 12 like the one shown in
In certain embodiments, each of a first pair 30 of opposed sidewalls 14 has an identical first length L1, and each of a second pair 32 of opposed sidewalls 14 has an identical length L2. In one embodiment of the present invention, the lengths L1, L2 of the sidewalls 14 are all identical, resulting in a square tote 10. However, for purposes of the present invention, the lengths may be different in order to create a rectangular tote 10 rather than a square tote 10. Furthermore, the tote 10 may have any number of sidewalls 14 and be in any configuration.
As shown in
One embodiment of the top rail 16 according to this invention is shown generally in
The channel 44 also includes a number of spaced ribs 52 which project generally perpendicularly between the channel walls 46, 48. The ribs 52 provide added strength and rigidity to the top rail 16 and may include a downwardly sloped terminal edge 54 as shown in
Another component of the tote 10 according to various embodiments of this invention is the base 18 which is shown generally in
As best shown in
To assemble the tote 10 from one or more blanks 12, each blank 12 is folded along fold lines 20 into a generally vertical orientation to create one or more sidewalls 14 of tote 10. As shown in
After the sidewalls 14 of the tote 10 are erected and the tabs 34 folded, the next steps in the assembly of the tote 10 are to mount, attach or secure the top rail 16 and base 18 onto the sidewalls 14. The top rail 16 is mounted over the top edge 24 of the erected sidewalls 14 and the base 18 onto the bottom edge 26 of the sidewalls 14. Once the tabs 34 are folded downwardly, the top rail 16 is snapped onto the top edge 24 of the sidewalls 14. The top rail channel 44 has an opening of a width at least twice the thickness of the blank 12. As seen in
As illustrated in
The notches 40 in the top edge 24 of the sidewalls 14 are aligned with the handles 60 in the top rail 16. Before the top rail 16 is mounted onto the top edge 24 of the blank or blanks 12, each handle 60 is pivoted outwardly along the living hinge 62 as shown generally in
The base 18 is mounted to the bottom edge 26 of the sidewalls 14 of the blank 12 in a similar operation. Tabs 34 projecting downwardly below the bottom edge 26 of the blank 12 are folded along their respective fold lines 36 toward the inner face 88 of the sidewall 14. The bottom edge 26 of the sidewall 14 is then aligned with the upwardly open channel 64 in the base 18 and pushed downwardly into the channel 64. The bottom edge 26 of the sidewall, including the fold line 36 between the tabs 34 and the sidewall 14 where appropriate is seated in the bottom of the channel 64 as shown in
The ribs 74 in the base channel 64 and the ribs 52 in the top rail channel 44 are aligned with the slits 38 in the sidewalls 14 so that when the top rail 16 and base 18 are mated with the sidewalls 14, the interlocking relationship between the slits 38 and the ribs 52, 74 provides added strength and alignment between the respective components of the tote 10.
The blanks 12 of the tote 10 according to this invention may be in a variety of configurations as shown in
Advantageously, the blanks 12 may be die cut or otherwise formed in a variety of configurations and a variety of heights H thereby resulting in totes 10 which have the desired height H for a particular application. Prior art injection molded totes which have a defined sidewall height do not offer this advantage.
An alternative embodiment of tote 10a according to this invention is shown in
Another embodiment of tote 10b according to this invention is shown in
All embodiments of tote according to this invention are designed and intended for stacking one upon another as shown generally in
A further advantage of each embodiment of the tote according to this invention is that it may be stacked and nested with prior art totes 11 as shown in
A further advantage of the tote according to various embodiments of this invention is that the base 18 and top rail 16 can be conveniently and easily removed from the sidewalls 14 for subsequent reuse, storage or shipping separate from an assembled tote configuration. As shown in
While we have described several preferred embodiments of the present invention, persons skilled in the art will appreciate changes and modifications which may be made without departing from the spirit of the invention. For example, although one configuration of a tote is illustrated and described, the present invention may be used with other configurations, such as a tote without a top rail and/or handles located in the sidewalls or base of the tote. Therefore, we intend to be limited only by the scope of the following claims and equivalents thereof:
Claims
1. A tote container comprising:
- a plurality of sidewalls each having a top edge spaced from a bottom edge;
- a plurality of upper tabs and a plurality of lower tabs each projecting from the top edge and the bottom edge, respectively, of selected sidewalls, each tab being joined to the associated sidewall by a fold line permitting the tab to be folded relative to the associated sidewall;
- a top rail mounted to the top edge of the sidewalls;
- a downwardly open channel on the top rail adapted to receive therein the upper tabs when folded downwardly along the associated fold lines toward the associated sidewalls to thereby mount the top rail to the sidewalls;
- a base mounted to the bottom edge of the sidewalls; and
- an upwardly open channel on the base adapted to receive therein the lower tabs when folded upwardly along the associated fold lines toward the associated sidewalls to thereby mount the base to the sidewalls.
2. The tote of claim 1 wherein the base of a first tote as recited in claim 1 is adapted to mate with the top rail of a second tote as recited in claim 1 to thereby stack the first and second totes.
3. The tote of claim 1 wherein the base is a unitary structure and separate from the sidewalls until mounted thereto.
4. The tote of claim 1 wherein a first set of the upper tabs project from a different sidewall than a second set of the upper tabs.
5. The tote of claim 1 wherein a first set of the lower tabs project from a different sidewall than a second set of the lower tabs.
6. The tote of claim 1 further comprising at least four upper tabs and at least four lower tabs, the four upper tabs projecting from at least two different sidewalls and the four lower tabs projecting from at least two different sidewalls.
7. The tote of claim 1 further comprising:
- a plurality of spaced ribs spanning the channel in the top rail; and
- a plurality of slits extending generally perpendicularly from the top edge of selected sidewalls;
- wherein the ribs are inserted into the slits when the top rail is mounted to the top edge of the sidewalls.
8. The tote of claim 1 further comprising:
- a plurality of spaced ribs spanning the channel in the base; and
- a plurality of slits extending generally perpendicularly from the bottom edge of selected sidewalls;
- wherein the ribs are inserted into the slits when the base is mounted to the bottom edge of the sidewalls.
9. The tote of claim 1 wherein the sidewalls are formed from at least one blank and at least one sidewall is a composite sidewall formed from spaced sections of the at least one blank juxtaposed together.
10. The tote of claim 1 wherein the sidewalls are formed from a plurality of blanks juxtaposed together.
11. The tote of claim 10 wherein the plurality of blanks include a first set of blanks for forming corners at a juncture between adjacent sidewalls of the tote and a second set of the blanks form the sidewalls intermediate adjacent corners.
12. The tote of claim 1 further comprising:
- a plurality of corners each at a juncture between adjacent sidewalls;
- wherein the sidewalls are formed from at least one blank of a foldable material and the blank is folded to form at least some of the corners of the tote.
13. The tote of claim 1 further comprising:
- indicia printed on an outer face of at least one of the sidewalls.
14. The tote of claim 1 wherein the downwardly open channel extends substantially entirely around the top rail and the upwardly open channel extends substantially entirely around the base.
15. The tote of claim 1 further comprising:
- a first hook projecting into the channel on the top rail; and
- a second hook projecting into the channel on the base;
- wherein each of the hooks engage one of the tabs to retain the top rail and the base, respectively, onto the sidewalls of the tote.
16. The tote of claim 1 wherein the top rail and the base are selectively removable from the sidewalls.
17. The tote of claim 16 further comprising:
- a plurality of slots in the top rail in communication with the downwardly open channel;
- a plurality of slots in the base in communication with the upwardly open channel;
- wherein at least some of the slots in the top rail provide access to the upper tabs captured in the top rail channel and at least some of the slots in the base provide access to the lower tabs captured in the base channel so that the respective tabs can be manipulated to release the top rail from the top edge of the sidewalls and the base from the bottom edge of the sidewalls.
18. A tote container comprising:
- a plurality of sidewalls each having a top edge spaced from a bottom edge;
- a plurality of upper tabs and a plurality of lower tabs each projecting from the top edge and the bottom edge, respectively, of selected sidewalls, each tab being joined to the associated sidewall by a fold line permitting the tab to be folded relative to the associated sidewall;
- wherein a first set of the upper tabs projects from a different sidewall than a second set of the upper tabs;
- wherein a first set of the lower tabs projects from a different sidewall than a second set of the lower tabs;
- a top rail mounted to the top edge of the sidewalls;
- a downwardly open channel extending substantially entirely around the top rail and adapted to receive therein the upper tabs when folded downwardly along the associated fold lines toward the associated sidewalls to thereby mount the top rail to the sidewalls;
- a base mounted to the bottom edge of the sidewalls;
- an upwardly open channel extending substantially entirely around the base and adapted to receive therein the lower tabs when folded upwardly along the associated fold lines toward the associated sidewalls to thereby mount the base to the sidewalls;
- a first hook projecting into the channel on the top rail;
- a second hook projecting into the channel on the base;
- wherein each of the hooks engages one of the tabs to retain the top rail and the base, respectively, onto the sidewalls of the tote;
- wherein the base is adapted to mate with the top rail of a similar tote for stack the totes.
19. The tote of claim 18 wherein the base is a unitary structure and separate from the sidewalls until mounted thereto.
20. The tote of claim 18 further comprising:
- a plurality of spaced ribs spanning the channel in the top rail;
- a plurality of slits extending generally perpendicularly from the top edge of selected sidewalls;
- wherein the ribs are inserted into the slits when the top rail is mounted to the top edge of the sidewalls.
21. The tote of claim 18 further comprising:
- a plurality of spaced ribs spanning the channel in the base;
- a plurality of slits extending generally perpendicularly from the bottom edge of selected sidewalls;
- wherein the ribs are inserted into the slits when the base is mounted to the bottom edge of the sidewalls.
22. The tote of claim 18 wherein the sidewalls are formed from at least one blank and at least one sidewall is a composite sidewall formed from spaced sections of the at least one blank juxtaposed together.
23. The tote of claim 18 wherein the sidewalls are formed from a plurality of blanks juxtaposed together.
24. The tote of claim 23 wherein the plurality of blanks include a first set of blanks for forming corners at a juncture between adjacent sidewalls of the tote and a second set of the blanks form the sidewalls intermediate adjacent corners.
25. The tote of claim 18 further comprising:
- a plurality of corners each at a juncture between adjacent sidewalls;
- wherein the sidewalls are formed from at least one blank of a foldable material and the blank is folded to form at least some of the corners of the tote.
26. The tote of claim 18 wherein the top rail and the base are selectively removable from the sidewalls.
27. The tote of claim 26 further comprising:
- a plurality of slots in the top rail in communication with the downwardly open channel;
- a plurality of slots in the base in communication with the upwardly open channel;
- wherein at least some of the slots in the top rail provide access to the upper tabs captured in the top rail channel and at least some of the slots in the base provide access to the lower tabs captured in the base channel so that the respective tabs can be manipulated to release the top rail from the top edge of the sidewalls and the base from the bottom edge of the sidewalls.
28. A method of assembling a tote container comprising the steps of:
- erecting a plurality of sidewalls, each sidewall having a top edge spaced from a bottom edge;
- bending a plurality of tabs each projecting from the top edge of selected sidewalls toward the associated sidewall;
- mounting a top rail onto the top edge of the sidewalls;
- engaging the tabs projecting from the top edge of the sidewalls with at least one detent on the top rail to thereby retain the top rail on the top edge;
- bending a plurality of tabs each projecting from the bottom edge of selected sidewalls toward the associated sidewall;
- mounting a base onto the bottom edge of the sidewalls; and
- engaging the tabs projecting from the bottom edge of the sidewalls with at least one detent on the base to thereby retain the base on the bottom edge.
29. The method of claim 28 wherein the top rail has a downwardly open channel and the mounting of the top rail step further comprises inserting the top edge and the tabs projecting therefrom into the top rail channel, and the base has an upwardly open channel and the mounting of the base step further comprises inserting the bottom edge and the tabs projecting therefrom into the base channel.
30. The method of claim 29 wherein the detent in the base and the detent in the top rail are each hooks projecting into the associated channel and the engaging steps each further comprise juxtaposing a terminal edge of each tab against the associated hook.
31. The method of claim 28 wherein the top rail and the base are releasably mounted to top edge and bottom edge, respectively, of the sidewalls.
32. The method of claim 28 wherein the erecting step further comprises:
- folding at least one blank into a desired configuration of the sidewalls.
33. The method of claim 29 further comprising:
- inserting ribs in the base channel into slits projecting from the bottom edge of the sidewalls; and
- inserting ribs in the top rail channel into slits projecting from the top edge of the sidewalls.
Type: Application
Filed: Mar 27, 2006
Publication Date: Sep 27, 2007
Applicant:
Inventors: William Vroon (Hudsonville, MI), Calvin Nyeboer (Holland, MI)
Application Number: 11/389,705
International Classification: B65D 5/42 (20060101); B65D 5/12 (20060101); B65D 5/32 (20060101);