Corner boards are sometimes used to protect the corners of containers stacked upon a pallet. Locating and retaining the corner boards in place with respect to the stack of containers prior to shrink wrapping or strapping of the pallet may be difficult.
Corner protector 20 comprises corner board 26 and corner board locator 28. Corner board 26 comprises an elongate angled member or structure forming an angled cavity 30 configured to receive a corner 32 of the stack 21 of containers 22. In the example illustrated, corner board 26 has a length sufficient to extend along an entirety of the corner 32 of stack 21. In other implementations, corner board 26 may have a length less than the entire height of corner 32, wherein a portion of the corners of containers 22 may not be protected or wherein corner board 26 may be combined with other corner boards 26 to collectively protect corner 32. In one implementation, corner board 26 is formed from cardboard. In another implementation, corner board 26 may be formed from other materials such as styrofoam, solid, open celled or closed cell polymers, wood, ceramics or other materials.
Corner board locator 28 comprises a member or structure configured to be connected or mounted to corner board 26 so as to project from corner board 26. Corner board locator 28 comprises a corner board connection portion 36 and an insert portion 38. Corner board connection portion 36 comprises that portion of locator 28 configured to mount locator 28 to corner board 26. In the example illustrated, corner board connection portion 36 comprises an angled slot 44 (shown in
In other implementations, connection portion 36 of locator 28 may have other configurations. For example, in other implementations, connection portion 36 may include a tab, hook or flap insertable into one of a series of spaced open or closed pockets, straps, tab receiving slits, loops, buttonholes or the like formed along the length of corner board 26. In another implementation, connection portion 36 may include a tab or flap having an adhesive having sufficient tackiness to secure and retain locator 28 to corner board 26 at a selected position along corner board 26.
Insert portion 38 comprises a flap, wing, finger, projection or panel extending from connection portion 36. Insert portion 38 extends from connection portion 36 when locator 28 is mounted to corner board 26 such that insert portion 38 also extends or projects from corner board 26 in a direction substantially perpendicular or normal to each of the panels or walls of corner board 26. Insert portion 38 has a thickness so as to project from corner board 26 and to be insertable into contact with an underside of a container 22 on a pallet 24 without substantially elevating or tipping the overlying container 22. In one implementation, insert portion 38 has a maximum thickness less than or equal to 0.25 inch (6.35 millimeters). In one implementation, projection or insertion portion 38 may be inserted into a seam 48 between vertically consecutive packages or containers on pallet 24. In another implementation, projection or insertion portion 38 may be inserted below a lower most container 22 of stack 21 between the lower most container 22 and pallet 24. In some implementations, projection or insertion portion 38 may be located along corner board 26 so as to project on top of, and partially across a topmost package or container 22 of stack 21 on pallet 24. Additionally, projection portion 38 may be fastened to pallet 24 before lower most container 22 is placed on pallet 24. Portion 38 may be fastened to pallet 24 by any means, including adhesive, tape, nail, screw, staple, or rivet. In the example illustrated, insertion portion 38 has a pointed end or tip 50 facilitate insertion below an overlying container 22. In other implementations, insertion portion 38 may have a rounded tip 50, or may have other shapes. In some implementations, tip 50 may be tapered, similar to that of the blade, to facilitate insertion into a seam 48 or insertion between a lowermost container 22 and pallet 24.
As shown by
Although corner protector 20 has been described as comprising a single locator 28 selectively positioned along corner board 26, in other implementations, corner protector 20 may include a plurality of locators 28 along the length of corner board 26. For example, corner protector 20 may include a first locator 28 between pallet 24 and a lowermost container 22 of stack 21, a second locator 28 located above the uppermost container 22 of stack 21 and one or more additional locators 28 inserted into different seams 48 of stack 21.
Although corner protector 20 has been illustrated and described as having one or more locators 28 as being separable from corner board 26 to allow for use of locators 28 with different corner boards 26 having different lengths for different heights of stack 21 and to allow for reuse of locators 28 upon damage to corner boards 26, in other implementations, corner protector 20 may be slidable along corner protector 26, but may be captured between stops, catches, caps or blocking structures located at one or both ends of corner board 26. Although corner protector 28 has been illustrated as having one or more locators that move along corner board 26, in other implementations, locators 26 may be fixed in place relative to corner board 26. For example, in some implementations, locators 28 may alternatively be integrally formed as part of a single unitary body with corner board 28, may be bonded, fastened, welded, or otherwise fixedly connected to corner board 26, wherein connection portion 36 is omitted or the other configurations such that insert portion 38 provides a panel projecting from the pallet corner board 26 to extend beneath and in contact with an underside of a container 22 of a stack 21 of containers 22.
Hooks 140 comprise catches, slits, knobs or other structures along insert panel or portion 138 proximate two opposite ends of slot 144. Hooks 140 comprise structures configured to receive and grip stretch wrap to facilitate the start of stretch wrapping. As shown by
In the example implementation illustrated, locator 128 is formed from a single panel or sheet of material with all of the structures extending in a single plane. In the example illustrated, locator 128 may be formed from material such as paper board, die cut plastic, injection molded plastic, metal, wood or bamboo. In other implementations, locator 128 may be formed from multiple pieces which are fastened, bonded, welded or otherwise joined to one another.
Teeth 245 comprise a projection that extend or project into slot 244. Although such teeth 245 are illustrated as having a rounded and or tips, in other implementations, teeth 245 can be jagged, rectangular or pointed. Teeth 245 are configured to resiliently flex during insertion and sliding movement of corner board 26 through slot 244. Once corner board 26 is in position at a desired location, teeth 24 resiliently return towards their default or original position to grip or bite into corner board 26 to resist accidental or inadvertent sliding movement of locator 238 with respect to corner board 26. In one implementation, those portions of locator 228 from which teeth 245 project may also be configured to resiliently flex during insertion or movement of corner board 26. In other implementations, such portions of locator 228 adjacent to teeth 245 may have a greater overall stiffness as compared to such teeth 245.
Insertion portion 238 is similar to insertion portion 38 and 138 except that insertion portion 238 has a rounded tip 250. Rounded tip 250 provides additional stiffness (as compared to a more pointed tip 50) to facilitate insertion of locator 228 into seam 48 or between a lower most container 22 and pallet 24. As of locator 128, locator 228 may be formed from material such as paper board, die cut plastic, it molded plastic, metal, wood or bamboo. In other implementations, locator 228 may be formed from multiple pieces which are fastened, bonded, welded otherwise joined to one another.
In other implementations, antiskid face 354 may have other configurations to resist accidental or inadvertent movement of insert portion 138 relative to an underlying or overlying container 22 in stack 21 (shown in
Hinge 433 comprises a structure which facilitates pivoting of point 146. In one example, hinge 433 comprises a crease, serration, groove or score forming a weakened region or line between point 146 and a central portion 457 of insertion portion 138. This weakened region facilitates pivoting of point 146 during sliding of corner board 26 through slot 144. In one implementation, portions of locator 428 proxy point 146 may be rigid. In other implementations, portions of locator 428 may be resiliently flexible so as to bend (in addition to the bending or pivoting about hinge 433) in response to corner board 26 sliding through slot 144. In other implementations, hinge 433 may comprise a living hinge that is molded rather than being formed by material removal processes such as die cutting or scoring.
Antiskid face 454 comprises a surface characteristic which offers enhanced resistance to relative horizontal movement between insert portion 138 of locator 428 and the overlying (or underlying) container 22 in contact with antiskid face 454. In the example illustrated, antiskid face 454 comprises a series of spaced proturberances or projections 456. Such projections 456 increase a level of resistance against sliding movement of insert portion 138 relative to an underlying and/or overlying container 22. In the example illustrated, projection 456 may be formed by embossing or debossing the panel forming insert portion 138 so as to project up and/or down. For example, in one implementation, embossments and debossments may be formed on opposite surfaces of insert portion 138 to form projections 456 projecting in opposite directions to provide locator 428 with an antiskid face 454 on both opposite surfaces of insert portion 138. In other implementations, projections 456 may be molded as part of locator 428 or bonded, welded or otherwise adhered to insert portion 138.
In the example illustrated, projections 456 are arranged in lines or rows along insertion portion 138 of central portion 457. In other implementations, projections 456 may have other arrangements on the surface of central portion 457. For example, projections 456 may be arranged in other rows or may be arranged randomly across the surface of insert portion 138. For example,
Slit 632 overlies or extends opposite to notch 630 so as to form a narrow mouth through which stretch wrap may be inserted into notch 630. Slit 632 is formed as part of resiliency supplement layer 634. In the example illustrated, resiliency supplement layer 634 is formed from a material and/or has a thickness or configuration so as to have a greater resiliency as compared to insert portion 138 and those portions of insert portion 138 extending about notch 630. The greater resiliency facilitates improved retention and capturing of stretch wrap. In one implementation, supplemental layer 634 is formed from one or more polymers or plastics. In one implementation, the single panel or sheet forming insert portion 138 comprises a thick paperboard which is inexpensive, sturdy and easy to recycle. At the same time, supplemental layer 634, formed from one or more polymers, offers greater resiliency for enhanced stretch wrap capture. In one implementation, supplemental layers 634 are bonded, glued, fastened or otherwise adhered to the main panel forming insert portion 138.
Although supplemental panels 634 are illustrated as being laminated or otherwise bonded to insert portion 138 adjacent to notches 630 on a single surface of insert portion in other implementations, additional supplemental layers 634 may be laminated to the main panel of insert portion 138 on an opposite surface of insert portion 138 such that notch 630 is sandwiched between two opposing supplemental layers 634. Also,
Corner protector 720 comprises corner board 26 (described above) and corner board locator 728. Corner board locator 728 is similar to locator 28 (as well as the other variations of locator 20 described above) except that locator 728 additionally comprises a raised or upstanding wall 740. Those remaining components of locator 728 which correspond to components of locator 28 are numbered similarly. As with locator 28 (or any of the other variations of locator 28 described above), locator 728 may be formed from a variety of materials such as paperboard, non-paperboard cellulose-based material, die cut plastic, injection molded plastic (polymers), thermoformed plastic, metal, wood and bamboo.
Wall 740 comprises at least one wall adjacent to and along the edges or opening of slot 44 along an outer side of slot 44, on an opposite side of slot 44 with respect to tip 50 and insert portion 38. In the example illustrated, wall 740 continuously extends along slot 44. In other implementations, wall 740 comprises multiple spaced wall portions or tabs spaced along slot 44. In one implementation, wall 740 is a height above slot 44 at the corner of slot 44 of at least 0.1 inch (2.54 millimeters) and nominally 0.75-1.25 inch (19.05-31.75 millimeters) to assist in supporting corner board 26. In other implementations, wall 740 may have other heights. In some implementations, internal surfaces of wall 740 may include prongs or spikes which further engage outer surfaces of corner board 26 to assist in retaining corner board 26.
Lower plateau 1052 extends from retention portions 1050 to upper plateau 1053. Lower plateau 1052 provides a first level of stiffness and support along corner board 26. Upper plateau 1053 extends between portions of lower plateau 1052 and rises above lower plateau 1052 opposite point 150 at point 146 at the corner of slot 144. Upper plateau 1053 provides a greater degree of stiffness and support for corner board 26 at the corner of corner board 26. In some implementations, plateaus 1052, 1053 may be omitted.
Insertion portion 1038 is similar to insertion portion 138 except that insertion portion 1038 includes additional form geometries 1060 and flexible tab 1062. Geometries 1060 comprise channels, walls, embossments, debossments and the like. Such geometries 1060 provide additional stiffening to insertion portion 1038 and will also provide insertion portion 1038 with an antiskid face 1054. The additional stiffening provided by geometry 1060 provides locator 1028 with sufficient strength facilitating formation of locator 1028 from a sheet of thermoplastic material or molded pulp paperboard. In other implementations, locator 1028 may be formed from other materials and may be formed in other fashions.
Flexible tab 1062 comprises an inner edge of slot 144 having an enhanced degree of flexibility and resiliency as compared to adjacent portions of connector portion 1038. Flexible tab 1062 resiliently flexes or bends during sliding movement of corner board 26 through slot 144 and is resiliently urged against the inserted corner board 26 to grip or pinch against the inserted corner board 26 to assist in retaining the inserted corner board 26 in a desired location along corner board 26. In the example illustrated, flexible tab 1062 continuously extends along the inner edge of slot 144 between slot 144 and point 150. In other implementations, flexible tab, 62 may comprise a plurality of spaced flexible tabs spaced along the inner edge of slot 144. In other implementations, flexible tab 1062 may be omitted.
Although mount 1134 is illustrated as being laminated or otherwise bonded to insert portion 138 adjacent to notches 630 on a single surface of insert portion 138, in other implementations, additional supplemental layers 634 (described above with respect to locator 628) may be laminated to the main panel of insert portion 138 on an opposite surface of insert portion 138 such that notch 630 is sandwiched between opposing supplemental layer 634 and mount 1134.
Although the present disclosure has been described with reference to example embodiments, workers skilled in the art will recognize that changes may be made in form and detail without departing from the spirit and scope of the claimed subject matter. For example, although different example embodiments may have been described as including one or more features providing one or more benefits, it is contemplated that the described features may be interchanged with one another or alternatively be combined with one another in the described example embodiments or in other alternative embodiments. Because the technology of the present disclosure is relatively complex, not all changes in the technology are foreseeable. The present disclosure described with reference to the example embodiments and set forth in the following claims is manifestly intended to be as broad as possible. For example, unless specifically otherwise noted, the claims reciting a single particular element also encompass a plurality of such particular elements.
Number | Name | Date | Kind |
---|---|---|---|
1200467 | Cady | Oct 1916 | A |
2328397 | Neuman | Aug 1943 | A |
3416652 | Almasy | Dec 1968 | A |
D220166 | Griffith | Mar 1971 | S |
3955677 | Collingwood | May 1976 | A |
4078673 | Wilhelmi | Mar 1978 | A |
4148394 | Bederman | Apr 1979 | A |
4201138 | Cox | May 1980 | A |
4265184 | Cox | May 1981 | A |
4292901 | Cox | Oct 1981 | A |
5115917 | Schrage | May 1992 | A |
5161692 | Knierim | Nov 1992 | A |
5251753 | Pigott et al. | Oct 1993 | A |
5339957 | Carstens | Aug 1994 | A |
5624031 | Fowler et al. | Apr 1997 | A |
6012587 | McCullough | Jan 2000 | A |
6499626 | Julius | Dec 2002 | B1 |
6685021 | Dodson et al. | Feb 2004 | B2 |
6971518 | Lowry | Dec 2005 | B1 |
D660454 | Lavelle | May 2012 | S |
8231004 | Port et al. | Jul 2012 | B2 |
D709360 | Lavelle | Jul 2014 | S |
8910790 | Trickett | Dec 2014 | B2 |
20050269229 | Lowry | Dec 2005 | A1 |
20050284783 | May | Dec 2005 | A1 |
20090029130 | Stubing | Jan 2009 | A1 |
20090032432 | Kostos et al. | Feb 2009 | A1 |
20110180450 | Hainer | Jul 2011 | A1 |
20110293398 | Leibreich et al. | Dec 2011 | A1 |
20130032506 | Grenchus et al. | Feb 2013 | A1 |
20140238893 | Grinwald et al. | Aug 2014 | A1 |
Entry |
---|
Photos received from third-party (undated). |
Number | Date | Country | |
---|---|---|---|
20140138271 A1 | May 2014 | US |