The present disclosure relates to containers and, more particularly, to plastic storage totes.
In recent years, consumers have become more concerned with the aesthetic appearance and functionality of garages, basements, closets, sheds, and other areas in which items tend to accumulate. As a result, consumers have invested vast sums of money on totes to store and organize accumulated items. A vast majority of such totes are plastic and formed by an injectional molding process.
It is known that plastic totes can undesirably become warped due to the pressure and stress exerted on them during the injection molding process, when the molten plastic is injected at high temperatures into a mold. This pressure and stress, and the associated warping, is especially problematic for base walls of plastic totes. This warping of the base wall impacts not only the appearance of the totes, but also the ability to stack and store totes in transport and on shelves.
There is a continuing need for a storage tote that has a resistance to the pressure and stress exerted on the storage tote during the injection molding process. Desirably, the storage tote in particular has a base wall that militates against warping and deflection.
In concordance with the instant disclosure, a storage tote that has a resistance to the pressure and stress exerted on the storage tote during the injection molding process, and which has a base wall in particular that militates against warping and deflection, has been surprisingly discovered.
In one embodiment, a storage tote that is resistant to stress and militates against warping includes a main body which has a base wall and a plurality of side walls. The plurality of side walls may include a first side wall and a second side wall. The base wall may have a center area generally arranged on a first plane. The center area may be bound by the plurality of side walls. The center area of the base wall may further include a central ridge with a first end and a second end. The first end of the central ridge may be disposed adjacent to the first side wall of the storage tote. The second end of the central ridge may be disposed adjacent to the second side wall of the storage tote. The central ridge may bisect the base wall.
In another embodiment, the storage tote may include a main body which has a base wall and a plurality of side walls. The plurality of side walls may include a first side wall and a second side wall. The base wall may have a center area generally arranged on a first plane. The center area may be bound by the plurality of side walls. The center area of the base wall may further have a central ridge and an outer perimeter ridge. The central ridge further may have a first end and a second end. The center area of the base wall may have a first side ridge and a second side ridge. The first end of the central ridge may be connected to the outer perimeter ridge and disposed adjacent to the first side wall of the storage tote. The second end of the central ridge may be connected to the outer perimeter ridge and disposed adjacent to the second side wall of the storage tote. The central ridge may bisect the base wall and may be disposed between the first side ridge and the second side ridge.
In an alternative embodiment, the storage tote includes a main body having a base wall and a plurality of side walls. The plurality of sidewalls may include a first sidewall, a second side wall, a third side wall, and a fourth sidewall. The base wall may have a center area generally arranged on a first plane. The center area may be bound by the plurality of side walls. The center area of the base wall may further have a central ridge with a first end and a second end. The first end of the central ridge may be disposed adjacent to the first side wall of the storage tote. The second end of the central ridge may be disposed adjacent to the second side wall of the storage tote. The central ridge may bisect the main body. The center area of the base wall may have a first side ridge and a second side ridge. The central ridge may have a first wall, a second wall, and a third wall. The first wall may be disposed on a second plane oriented transverse to the first plane. The second wall may be spaced apart from the first wall. The second wall may be oriented on a plane generally parallel with the second plane. The third wall of the central ridge may be disposed on a third plane oriented transverse to the second plane. The third wall may be disposed between and may be connected to the first wall and the second wall of the central ridge. The first side ridge may be spaced apart from the first wall of the central ridge. The second side ridge may be spaced apart from the second wall of the central ridge. The first side ridge may further include a central portion and a pair of first end portions. The central portion of the first side ridge may be spaced apart from the first side of the central ridge. The central portion of the first side ridge may be oriented substantially parallel to the central ridge. The second side ridge may further include a central portion and a pair of second end portions. The central portion of the second side ridge may be spaced apart from the second side of the central ridge. The central portion of the second side ridge may be oriented substantially parallel to the central ridge. Each of the first end portions and the second end portions may be oriented transverse to the central ridge.
In an exemplary embodiment, the storage tote includes a main body with a base wall and a plurality of side walls. The base wall has a center area, a central ridge, a first side ridge, and a second side ridge. The center area is bounded by the plurality of side walls. The central ridge has a first side and a second side. The central ridge may be formed by two adjacent channels formed in the base wall, for example, via an injection molding process.
In a particular example, the central ridge may be disposed and oriented across the base wall so that it bisects the base wall. The first side ridge may be disposed across the center area. In a more particular example, the first side ridge may be spaced apart from the first side of the central ridge and oriented parallel to the central ridge. The first side ridge may be formed by two adjacent channels via injection molding or any other appropriate method.
In another embodiment, the second side ridge may be disposed across the center area and spaced apart from the second side of the central ridge. The second side ridge may be oriented parallel to the central ridge. The second side ridge may be formed by two adjacent channels via injection molding or any other appropriate method.
In an alternative embodiment, the first side ridge may only have a center portion that is oriented parallel to the central ridge. Similarly, the second side ridge may only have a center portion that is oriented parallel to the central ridge. The first side ridge and the second side ridge may further include a plurality of end portions oriented transverse to the central ridge.
Without being bound to any particular theory, it is believed that the positioning and the wide width of the ridges, and their associated channels in the abovementioned and following embodiments, allow the base wall of storage tote to have more structural integrity. This arrangement of the ridges provides a “corrugated” effect that is also believed to contribute to the superior structural integrity. This greater structural integrity of the base wall allows the pressure and stress during the manufacturing process to be more evenly distributed along the base wall, for example, in a manner similar to a structural Roman arch. By evenly distributing the stress along the base wall, the storage tote is more resistant to warping following the injection molding process. Likewise, this allows the storage tote to have a more consistent appearance after the manufacturing process and enhances the stacking quality of the storage tote.
The effects of these improvements have been demonstrated in a computer analysis of a prior art storage tote being subjected to an injection pressure during a molding process. The prior art storage tote exhibits significant warping in the center area of the base wall, as shown by the plastic flexing inward by almost 0.16 inches (4 millimeters). By comparison, and as described further herein, the embodiments of the storage tote in the present disclosure drastically reduces the inward flexing on the center area and more evenly distributes the stress across the main body.
Further areas of applicability will become apparent from the description provided herein. It should be understood that the description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure.
The above, as well as other advantages of the present disclosure, will become readily apparent to those skilled in the art from the following detailed description, particularly when considered in the light of the drawings described hereafter.
The following detailed description and appended drawings describe and illustrate various embodiments of the invention. The description and drawings serve to enable one skilled in the art to make and use the invention, and are not intended to limit the scope of the invention in any manner.
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The base wall 104 has a center area 112 generally arranged on a first plane P1. The center area 112 of the base wall 104 is bounded by the plurality of side walls 106. The center area 112 of the base wall 104 further includes a central ridge 116 with a first end 118 and a second end 120. The first end 118 of the central ridge 116 may be disposed adjacent to the first side wall 108 of the storage tote 100. The second end 120 of the central ridge 116 may be disposed adjacent to the second side wall 110 of the storage tote 100. The central ridge 116 bisects the base wall 104.
Without being bound to any particular theory, it is believed that bisecting the base wall 104 with the central ridge 116 provides for a greater structural integrity and increased durability of the base wall 104 relative to the prior art. Advantageously, the greater structural integrity and increased durability provided by the central ridge 116 militates against warping of the base wall 104 post-manufacturing.
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With respect to the prior art storage tote shown in
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Without being bound to any particular theory, it is believed that providing the first side ridge 152 and the second side ridge 154, together with the central ridge 116, provides greater structural integrity and increased durability of the base wall 104. Advantageously, the greater structural integrity and increased durability provided by the first side ridge 152 and the second side ridge 154 militates against warping of the base wall 104 post-manufacturing.
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Without being bound to any particular theory, it is believed that the positioning of the central ridge 116, the first side ridge 152, and the second side ridge 154 allow the base wall 104 of storage tote 100 to have enhanced structural integrity. This enhanced structural integrity of the base wall 104 allows the stress during the manufacturing process to be more evenly distributed along the base wall 104, for example, in a manner similar to a structural Roman arch. Advantageously, by evenly distributing the stress along the base wall 104, the storage tote 100 is more resistant to warping following the injection molding process. Desirably, the enhanced structural integrity also allows the storage tote 100 to have a more consistent appearance and shape after the manufacturing process and further increases the stacking quality of the storage tote 100.
As shown in
In a particular example, the central ridge 116, the first side ridge 152, and the second side ridge 154 may be formed by injection molding. A skilled artisan may select other suitable methods of forming the central ridge 116, the first side ridge 152, and the second side ridge 154, within the scope of the present disclosure.
With reference to
In another example, the outer perimeter ridge 138 further comprises at least one chamfered corner 162. Advantageously, the at least one chamfered corner 162 of the outer perimeter ridge 138 may enhance the stacking quality of the storage tote 100.
In a specific example, as shown in
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In an alternative embodiment, as shown in
Each of the first side ridge 152 and second side ridge 154 may further have a plurality of end portions 188 oriented transverse to the central ridge 116. A skilled artisan may select other suitable configurations of the first side ridge 152 and the second side ridge 154, within the scope of the present disclosure.
In a specific example, as shown in
Without being bound to any particular theory, it is believed that the positioning of the first lateral ridge 190 and the second lateral ridge 196 provides the base wall 104 of storage tote 100 with greater structural integrity and further militates against warping post manufacturing.
Advantageously, the configuration of base wall 104 of the storage tote 100 of the present disclosure militates against an undesirable inward flexing or warping at the center area 112 of the base wall 104. It has been found that the central ridge 116 of the storage tote 100 facilitates a more even distribution of the stress across the main body 102, which is believed to further militate against warping and deflection.
While certain representative embodiments and details have been shown for purposes of illustrating the invention, it will be apparent to those skilled in the art that various changes may be made without departing from the scope of the disclosure, which is further described in the following appended claims.
This application is a continuation of U.S. patent application Ser. No. 16/943,686 filed on Jul. 30, 2020, which claims priority to U.S. Provisional Patent Application Ser. No. 62/880,142 filed on Jul. 30, 2019. The entire disclosure of the above application is hereby incorporated herein by reference.
Number | Date | Country | |
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62880142 | Jul 2019 | US |
Number | Date | Country | |
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Parent | 16943686 | Jul 2020 | US |
Child | 18489120 | US |