The disclosure relates to accessories for dunnages for protection and easier transport therof.
In order to facilitate transport, large quantities of items are bundled together for shipment. For example, individual pieces of lumber are arranged side by side and stacked to form a substantially rectangular prism shaped collection. Transverse members (usually lengths of wood), called dunnage, are placed underneath the collection of lumber, longitudinally spaced from one another, and banding is used to secure the lumber and dunnage together. Each band wraps over the lumber and underneath a piece of dunnage.
The bundle is configured to be lifted by a fork lift by approaching the long side of the bundle and inserting the forks between the transverse members. However, the bundles are often too wide to be loaded on to a container by lifting from the long side. Instead, the forks must engage the shorter side of the bundle. Since the dunnage lies on the ground, the forks cannot lift underneath. Instead, the operator may simply use the forks to push the near-side dunnage to slide the bundle across the ground on both the near-side and far-side dunnage, or slightly lift the end of the bundle to lift the near-side dunnage and the bundle will slide across the ground on only the far-side dunnage.
Sliding the bundle across the ground provides various disadvantages. For example, the friction between the dunnage and the ground may make the bundle more difficult to move. A bundle of lumber may have a weight between 100 lbs. and 8,000 lbs., which can result in a very large amount of friction. Obstructions on the ground may cause the dunnage to shift, which may cause the banding to fall off or break, due to abrasion, heat generated by friction, etc. Any breaking or movement of the banding or dunnage may jeopardize the safety of the items being shipped.
The present disclosure provides a dunnage accessory for shipping bundles to reduce the friction between the bundle and the ground and to protect the banding during transport.
The accessory of the present disclosure may comprise a base and a pair of arms extending from the base. A receptacle may be defined on three sides by the base and pair of arms. The receptacle may be configured to receive a portion of the dunnage.
The pair of arms may include hooks configured to retain the portion of the dunnage within the receptacle. The hooks may comprise a swept face and a sharp face. The swept face and the sharp face may meet to form a retaining edge. The retaining edges may engage the portion of the dunnage to retain said portion within the receptacle. The swept edge may guide the dunnage into the receptacle. The sharp edge may discourage removal of the dunnage from the receptacle.
The pair of arms may further include voids to reduce the amount of material needed for manufacture the accessory.
The accessory may be made of a resilient material, in order to widen to receive the portion of the dunnage, and pinch to retain said portion within the receptacle.
The accessory may reduce the friction between the dunnage and the ground to allow easier transport. The accessory may further protect the dunnage and banding from damage from sliding on the ground.
For a fuller understanding of the nature and objects of the disclosure, reference should be made to the following detailed description taken in conjunction with the accompanying drawings, in which:
In an exemplary embodiment of the present disclosure found to be useful with dunnage currently in use, the base 5 may be rectangular in shape. The length L2 of the base 5 may be 2.62 inches, the thickness T1 of the base 5 may be 0.38 inches, and the width W of the base 5 may be 0.88 inches (see
In a specific embodiment of the present disclosure, each arm 10 may be triangular in shape when viewed from the front of the accessory 1 (see
The accessory 1 may be substantially trapezoidal in shape when viewed from the front. For example, the base 5 may be rectangular and the arms 10 may be triangular to form a substantially trapezoidal accessory 1. The accessory 1 may have other shapes. For example, the accessory 1 may have a shape that is generally rectilinear, semi-circular, etc.
In a specific embodiment of the present disclosure, the accessory 1 may have an overall length L1 of 6.22 inches, an overall height H of 1.75 inches, and an overall width W of 0.88 inches (See
The accessory 1 may include a receptacle 15. The receptacle 15 may be defined on three sides by the base 5 and arms 10. The receptacle 15 may be configured to receive a portion of dunnage. For example, the dunnage may be a transverse piece of wood (transverse with respect to the longitudinal arrangement of lumber in a bundle), and a portion of the this piece of wood may be received within the receptacle 15. For example, the length L2 of the receptacle 15 may be 2.62 inches and the depth D of the receptacle 15 may be 1.37 inches (See
The arms 10 may include hooks 20. The hooks 20 may be configured to retain the portion of dunnage within the receptacle 15. For example, the hooks 20 may be configured to retain a transverse member of dunnage within the receptacle 15. The hooks 20 may define a length L3 therebetween that is slightly smaller than the width of the dunnage received within the receptacle 15. The accessory 1 will pinch the transverse member with the hooks 20 to retain the transverse member within the receptacle 15. For example, the length L3 between the hooks 20 may be 2.32 inches.
Referring to
The accessory 1 may be made of a material that displays resilient properties. Such properties may allow the receptacle 15 to widen slightly to receive a transverse member of dunnage and pinch to retain the member within. For example, the accessory 1 may be made of a plastic such as, for example, nylon, polyethylene, etc. The accessory 1 may be made from more than one material, including composite materials.
The arms 10 may further include voids 25. The voids 25 may have substantially the same shape as the arms 10. In the specific embodiment shown in
The accessory 1 may be manufactured by additive or subtractive processes. For example, the accessory 1 may be injection molded, extruded, 3-D printed, CNC milled, etc. The manufacturing process used to make the accessory 1 may depend on the material(s) the accessory 1 is composed of, and the dimensions of the accessory 1.
The accessory 1 may be made of a material that has a lower coefficient of friction with the ground than the dunnage 30. As such, the accessory 1 may reduce the friction between the bundle 35 and the ground, and make the bundle 35 easier to transport.
One, two, or more accessories 1 may be arranged on a length of dunnage 30, for example, multiple accessories 1 may be distributed along the length of dunnage 30. In this matter, the accessories may improve the balance of weight in the transverse direction for easier transport. In some embodiments, it is advantageous to arrange multiple accessories such that only the accessories 1 are in contact with the ground, so friction may be reduced. Further, obstructions on the ground will be less likely to effect the position of the dunnage 30 since only the accessories 1 are in contact with the ground. If the one end of the bundle 35 is lifted when pushed onto a container, accessories 1 can be arranged on the dunnage 30 at the opposite end of the bundle 35.
In an exemplary embodiment, a bundle 35 including dunnage 30 may include a pair of accessories 1 arranged to receive each piece of dunnage 30. Accordingly, if the bundle 35 is simply pushed on to a container, the accessories 1 arranged on the dunnage 30 will be in contact with the ground.
The accessory of the present disclosure may provide certain advantages for transporting bundles of lumber. First, the accessory may reduce the friction between the bundle and the ground, which may make the bundle easier to move. Second, the accessory may protect the banding, which may reduce the chance of the banding breaking and causing damage to the bundled items. Third, the accessory may reduce the chance of obstructions or frictional forces effecting the position of the dunnage.
Although the present disclosure has been described with respect to one or more particular embodiments, it will be understood that other embodiments of the present disclosure may be made without departing from the spirit and scope of the present disclosure.
This application claims priority to U.S. Provisional Application No. 62/456,381, filed on Feb. 8, 2017, now pending, the disclosure of which is incorporated herein by reference.
Number | Date | Country | |
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62456381 | Feb 2017 | US |