LOCKING TABS FOR ROLL STOCK STACKING SUPPORT
A support for receiving and supporting stacked tiers of roll stock. The support can be either located below a first tier of the roll stock, placed between tiers of roll stock, or secured above the top tier, all to provide a stacked arrangement of the roll stock that is especially suited for storage or transport. Interlocking tabs and notches and interfitting registration locks are provided so that intermediate layers can use back-to-back roll supports that have been securely joined together. The roll support is preferably formed from a strong, flexible, thermoformable resinous polymeric plastic material.
This disclosure relates to improvements in support cradles useful for the stable support of roll stock, including, for example, improved support cradles used in the support of cylindrical rolls of paper or the like.
BACKGROUND“Roll stock” is a term that is used in various industries to describe cylindrical rolls or tubular rolls of an elongate, thin material that may be advantageously stored and shipped by winding the elongate material into a multilayer, wound or rolled generally cylindrical configuration. Such items include paper products, plastic film products, thin gauge metals, roofing sheets, and various other thin, elongate strips of materials.
Many cylindrical or tubular shaped rolls are packed on pallets for storage and for shipping. Packing of roll stock is often provided via tiers of rolls. Once method of storing and shipping roll stock involves securely locating such rolls in a horizontal configuration above pallets. In order to safely and securely stabilize and support cylindrical or tubular rolls in a horizontal position, stacking supports have often been employed.
In the field of roll supports, there still remains a need for an improved roll stacker design which can be manufactured utilizing a material that minimizes the storage space requirements of roll supports, so as to free up warehouse space. Further, a strong, weather-proof, preferably recyclable material that can be utilized in the production of compactly stackable roll supports is desirable. Finally, it would be desirable to provide a roll support design that assures that when roll supports are used in a “back-to-back” configuration, such roll supports can be secured each to the other to provide a reliable, securable, stackable configuration.
Especially when securing multiple roll stock pieces in a horizontal fashion, it would be a distinct and important improvement to provide roll supports that are quickly and easily secured each to the other, so that adjacent upper and lower roll supports are effectively prevented from slipping apart. Thus, the important advantages of a roll support product providing such desirable features in a workable roll support cradle design can be readily appreciated.
In order to enable the reader to attain a more complete appreciation of the invention, and of the novel features and the advantages thereof, attention is directed to the following detailed description when considered in connection with the accompanying drawings, wherein:
The foregoing figures, being merely exemplary, contain various elements that may be present or omitted from actual implementations depending upon the circumstances. An attempt has been made to draw the figures in a way that illustrates at least those elements that are significant for an understanding of the various embodiments and aspects of the invention. However, various other elements of a roll cradle with locking tabs, especially as applied for different variations of the functional components illustrated, as well as different renditions of artistic aspects of such functional components, may be utilized in order to provide a robust roll cradle design with secure interlocking tabs. Further, various features, including optional or alternate features, may be utilized in order to provide a compact, efficiently nestable, reliable structural material for a roll stacking support with locking tabs.
DETAILED DESCRIPTIONTurning now to
As better appreciated by reference to
Roll supports 20 as illustrated in
Another important property which is achieved by the use of PET is that a single roll support 20 can easily be stacked over another roll support 20 with only a slight increase in height. As shown in
Attention is again directed to
As indicated in
Along the first foot portion 34 of the base 30, at least one locking tab 64 is provided. Shaped in a cooperative working fashion with tab 64, at least one notch 66 defined by edgewall portions 68 is provided. As more clearly seen in
Tabs 64 are configured as a laterally extending flap having a body 80 that extends from a connection end 82 to an outer end 84. The tabs 64 extend stiffly from the connection end 82 to the outer end 84. However, to provide a manually interlockable method of joining a first and a second support apparatus together to form an intermediate roll support unit 20C, seen in
In one embodiment the tabs 64 include first 90 and second 92 ear portions. The first 90 and second 92 ear portions located at longitudinally spaced apart locations on the body 80 of tabs 64. In one embodiment, the first 90 and second 92 ear portions extend stiffly from the body 80 along a common plane. However, the first 90 and second 92 ear portions are at least slightly displaceable above and below the common plane, which common plane may, in one embodiment, be defined by the plane of the first foot portion 34.
As illustrated in
As is noted in
For ease of manufacture, each of the opposing sidewall portions 60 and 62 may be angled outward away from the base 30 and inward toward the longitudinal centerline of the roll support 20 at an angle sigma (Σ) of about 20 degrees (see
As also seen in
When roll supports 20A and 20B are joined in interlocking fashion to provide an intermediate roll support apparatus 20C, in one embodiment it has been found useful to provide sets of registration locks that are sized and shaped for reliably and securely positioning roll supports 20A and 20B in back-to-back mating engagement. In such embodiments, the base 30 further comprises, along the first foot portion 34, a first set of registration locks 110. Similarly, the base 30 further comprises, along second foot portion 36, a second set of registration locks 112. As illustrated, complementary thimble shaped dimples may be adequate to accomplish the desired registration lock interface. Note that in the embodiment illustrated in
A method providing intermediate roll stocking supports 20C may be practiced by providing a first support apparatus 20A, providing a second support apparatus 20B, and then interlocking the first support apparatus 20A with the second support apparatus 20B. This may be accomplished by (1) engaging at least some of the at least one or more tabs 64 in the first support apparatus 20A with at least one of the one or more notches 66 in the second support apparatus 20B, then (2) engaging at least some of the at least one or more tabs 64 in the second support apparatus 20B with at least one of the one or more notches 66 in the first support apparatus 20A. Then, by interfittingly registering in mating engagement the first set 110 and the second set 112 of registration locks in the first support apparatus 20A with the first set 110 and the second set 112 of registration locks in the second support apparatus 20B. Overall, interlocking the first support apparatus 20A with the second support apparatus 20B, and interfittingly registering the sets 110 and 112 of registration locks, forms an intermediate roll stocking support 20C in a back-to-back, stable interlocked configuration.
It is to be appreciated that the various aspects and embodiments of a roll cradle with locking tabs and registration locks as described herein is an important improvement in the state of the art. The locking tab for roll cradle just described herein is simple, robust, reliable, and susceptible to use whenever roll cradles are employed in a back-to-back configuration. Although only a few exemplary embodiments have been described in detail, various details are sufficiently set forth in the drawings and in the specification provided herein to enable one of ordinary skill in the art to make and use the invention(s), which need not be further described by additional writing in this detailed description.
Importantly, the aspects and embodiments described and claimed herein may be modified from those shown without materially departing from the novel teachings and advantages provided by this invention, and may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. Therefore, the embodiments presented herein are to be considered in all respects as illustrative and not restrictive. As such, this disclosure is intended to cover the structures described herein and not only structural equivalents thereof, but also equivalent structures. Numerous modifications and variations are possible in light of the above teachings.
Claims
1. A support apparatus for receiving and supporting two or more pieces of roll stock, said support apparatus comprising:
- (a) a base, said base extending along a longitudinal axis and having laterally spaced apart first and second foot portions; first and second end portions, and one or more interior portions;
- (b) a plurality of roll support cradle portions, each of said roll support cradle portions comprising (i) an outward surface shaped as an arcuate segment of pre-selected dimensions adapted for securely receiving a piece of roll stock of substantially complementary shape, each of said roll support cradle portions comprising a first outer end and a second outer end, (ii) a first end wall portion, and a second end wall portion, said first end wall portion and said second end wall portions extending from said base to said first outer end and said second outer end of said roll support cradle portions; and (iv) opposing sidewall portions, said opposing side wall portions provided for each of said plurality of roll support cradle portions, each of said opposing sidewall portions sloping inwardly with respect to said longitudinal axis and outwardly from said base toward, and supporting, the companion roll support cradle portion;
- (c) said base further comprising, along said first foot portion, at least one locking tab and a first set of registration locks, and along said second foot portion, at least one notch defined by notch edgewall portions, and a second set of registration locks.
2. The support apparatus as set forth in claim 1, wherein said notch edgewall portions define, in said second foot portion, an outwardly opening notch.
3. The support apparatus as set forth in claim 2, wherein said outwardly opening notch comprises first and second notch neck portions, said first and second notch neck potions sized and shaped for interlocking detachable engagement with at least one of said at least one tabs.
4. The support apparatus as set forth in claim 3, wherein said first and second notch neck portions each comprise projections tending to narrow, along a selected notch edgewall portion, at least some of said outwardly opening notch.
5. The support apparatus as set forth in claim 4, wherein said second foot portion comprises an inner end, and wherein said notch edgewall portion comprises a proximal edge adjacent said inner end.
6. The support apparatus as set forth in claim 5, wherein said notch comprises a generally hour-glass shaped opening having a top and a narrowed neck, said proximal edge providing the top of said generally hour-glass shape, and said first and second notch neck portions cooperating to provide the narrowed neck portion.
7. The support apparatus as set forth in claim 1, wherein said tab comprises a laterally extending flap having a connection end, an outer end, and a body therebetween.
8. The support apparatus as set forth in claim 7, wherein said tab extends stiffly from said connection end to said outer end, and wherein said tab is at least slightly moveable by pivoting action along said connection end.
9. The support apparatus as set forth in claim 7, wherein said tab comprises first and second ear portions, said first and second ear portions located at longitudinally spaced apart locations on said body
10. The support apparatus as set forth in claim 9, wherein said first and second ear portions extend stiffly from said body along a common plane, but wherein said first and second ear portions are at least slightly displaceable from said common plane.
11. An intermediate support apparatus for location between two or more lower and two or more upper pieces of roll stock, said intermediate support apparatus comprising: and wherein at least one of said at least one locking tab on said first support apparatus is attached to at least one of said at least one notch in said second support apparatus, and wherein at least one of said at least one locking tab on said second support apparatus is attached to at least one of said at least one notch in said first support apparatus
- a first support apparatus and a second support apparatus, said first support apparatus and said second support apparatus each sized and shaped for complementary back-to-back interlocking engagement, wherein each of said first and second support apparatus comprises a base, said base extending along a longitudinal axis and having laterally spaced apart first and second foot portions; first and second end portions, and one or more interior portions; a plurality of roll support cradle portions, each of said roll support cradle portions comprising (i) an outward surface shaped as an arcuate segment of pre-selected dimensions adapted for securely receiving a piece of roll stock of substantially complementary shape, each of said roll support cradle portions comprising a first outer end and a second outer end, (ii) a first end wall portion, and a second end wall portion, said first end wall portion and said second end wall portions extending from said base to said first outer end and said second outer end of said roll support cradle portions; and (iv) opposing sidewall portions, said opposing side wall portions provided for each of said plurality of roll support cradle portions, each of said opposing sidewall portions sloping inwardly and outwardly from said base toward, and supporting, the companion roll support cradle portion; said base further comprising, along said first foot portion, at least one locking tab, and along said second foot portion, at least one notch defined by notch edgewall portions.
12. The intermediate support apparatus as set forth in claim 11, wherein said notch edgewall portions define, in said second foot portion, an outwardly opening notch.
13. The intermediate support apparatus as set forth in claim 12, wherein said outwardly opening notch comprises first and second notch neck portions, said first and second notch neck potions sized and shaped for interlocking detachable engagement with at least one of said at least one tabs.
14. The intermediate support apparatus as set forth in claim 13, wherein said first and second notch neck portions each comprise projections tending to narrow, along a selected notch edgewall portion, at least some of said outwardly opening notch.
15. The intermediate support apparatus as set forth in claim 14, wherein said second foot portion comprises an inner end, and wherein said notch edgewall portion comprises a proximal edge adjacent said inner end.
16. The intermediate support apparatus as set forth in claim 15, wherein said notch comprises a generally hour-glass shaped opening having a top and a narrowed neck, said proximal edge providing the top of said generally hour-glass shape, and said first and second notch neck portions cooperating to provide the narrowed neck portion.
17. The intermediate support apparatus as set forth in claim 11, wherein each of said at least one tabs in said first support apparatus and in said second support apparatus comprises a laterally extending flap having a base, an outer end, and a body therebetween.
18. The intermediate support apparatus as set forth in claim 17, wherein each of said at least one tabs in said first support apparatus and in said second support apparatus extends stiffly from said base to said outer end, and wherein each of said at least one tabs is at least slightly moveable by pivoting action along said base.
19. The intermediate support apparatus as set forth in claim 17, wherein each of said at least one tabs in said first support apparatus and in said second support apparatus comprises first and second ear portions, said first and second ear portions located at longitudinally spaced apart locations on said body
20. The intermediate support apparatus as set forth in claim 19, wherein said first and second ear portions extend stiffly from said body along a common plane, but wherein said first and second ear portions are at least slightly displaceable from said common plane.
21. The support apparatus as set forth in claim 1, wherein each of said roll support cradle portions comprises a bottom portion, and wherein said bottom portion is spaced apart from said base.
22. The support apparatus as set forth in claim 21, wherein said bottom portion of said roll support cradle portion is spaced apart from said base by about 0.25 inches.
23. The support apparatus as set forth in claim 1, wherein each of said opposing sidewall portions is angled outward and inward at an angle sigma (Σ) of about 20 degrees, with respect to a plane perpendicular to said first base.
24. The support apparatus as set forth in claim 1, wherein said first end wall portion further comprises a plurality of strengthening flutes.
25. The support apparatus as set forth in claim 24, wherein strengthening flutes comprise a long, rounded groove in said first end wall portion.
26. The support apparatus as set forth in claim 25, wherein three flutes are provided in said first end wall portion.
27. The support apparatus as set forth in claim 1, wherein said second end wall portion further comprises a plurality of strengthening flutes.
28. The support apparatus as set forth in claim 27, wherein said strengthening flutes each comprise a long, rounded groove in said second end wall portion.
29. The support apparatus as set forth in claim 28, wherein three flutes are provided in said second end wall portion.
30. The support apparatus as set forth in claim 1, further comprising one or more strengthening ridges, said one or more strengthening ridges extending between the second end wall portions of adjacent roll support cradle portions.
31. The support apparatus as set forth in claim 30, wherein at least two strengthening ridges are provided.
32. The intermediate support apparatus as set forth in claim 11, wherein said first and said second support apparatus each comprises a strong, flexible plastic material.
33. The intermediate support apparatus as set forth in claim 32, wherein said plastic material comprises polyethylene terephthalate.
34. The intermediate support apparatus as set forth in claim 20, wherein said first and said second support apparatus comprises a thermoformed solid.
35. A support apparatus for receiving and supporting two or more pieces of roll stock, said support apparatus comprising:
- (a) a base, said base extending along a longitudinal axis and having laterally spaced apart first and second foot portions; first and second end portions, and one or more interior portions;
- (b) a plurality of roll support cradle portions, each of said roll support cradle portions comprising (i) an outward surface shaped as an arcuate segment of pre-selected dimensions adapted for securely receiving a piece of roll stock of substantially complementary shape, each of said roll support cradle portions comprising a first outer end and a second outer end, (ii) a first end wall portion, and a second end wall portion, said first end wall portion and said second end wall portions extending from said base to said first outer end and said second outer end of said roll support cradle portions; and (iv) opposing sidewall portions, said opposing side wall portions provided for each of said plurality of roll support cradle portions, each of said opposing sidewall portions sloping inwardly and outwardly from said base toward, and supporting, the companion roll support cradle portion;
- (c) said base further comprising, along said first foot portion (i) at least one locking tab, each of said at least one locking tabs comprising a stiff laterally extending flap portion having a connection end, an outer end, and a body therebetween, said at least one locking tab at least slightly moveable by pivoting action along said connection end, each of said at least one locking tabs comprising first and second ear portions, said first and second ear portions extending stiffly from said body along, but slightly displaceable from, a common plane, and located at longitudinally spaced apart locations on said body, and (ii) a first set of registration locks; and
- (d) said base further comprising along said second foot portion, (i) at least one outwardly opening generally hour glass shaped notch defined by notch edgewall portions including flexible neck portions, and (ii) a second set of registration locks.
36. A method for providing intermediate roll stocking supports, said method comprising:
- providing a first support apparatus as set forth in claim 35,
- providing a second support apparatus as set forth in claim 35,
- interlocking said first support apparatus with said second support apparatus by engaging at least some of said at least one or more tabs in said first support apparatus with at least one of said one or more notches in said second support apparatus, and engaging at least some of said at least one or more tabs in said second support apparatus with at least one of said one or more notches in said first support apparatus; and
- interfittingly registering said first set and said second set of registration locks in said first support apparatus with said first set and said second set of registration locks in said second support apparatus;
- wherein interlocking said first support apparatus with said second support apparatus, and interfittingly registering said sets of registration locks, forms an intermediate roll stocking support in a back-to-back, stable interlocked configuration.
Type: Application
Filed: Nov 21, 2006
Publication Date: May 22, 2008
Inventor: Joseph O'Malley (Selah, WA)
Application Number: 11/562,411
International Classification: B65D 19/00 (20060101);