Pallet Dismantling Apparatus |
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申请号 | US14657037 | 申请日 | 2015-03-13 | 公开(公告)号 | US20160264386A1 | 公开(公告)日 | 2016-09-15 |
申请人 | Stewart Duncan; Richard Fongeallaz; | 发明人 | Stewart Duncan; Richard Fongeallaz; | ||||
摘要 | An apparatus is disclosed for dismantling a pallet comprising an elongated handle having a free end and an attachment end, wherein the attachment end is coupled with a crossbar having a horizontal axis extending perpendicular to the plane of the handle. The apparatus also has one or a plurality of blades extending rigidly forward in adjustable communication with the crossbar via a notched aperture in each blade for receiving the crossbar, wherein each blade further comprises a lower curved portion, and an upper portion for engaging a board of a pallet, at least one wheel rotatably coupled with said lower curved portion, and means for clamping the blades to the crossbar. | ||||||
权利要求 | What is claimed is: |
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说明书全文 | The invention relates to new and useful improvements in tools for dismantling pallets. Copyright—A portion of the disclosure of this document contains material that is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in publically available Patent and Trademark Office patent files or records, but otherwise reserves all copyright rights whatsoever. The following notice applies to the description which may be described below and in the drawings that form a part of this document: Copyright Stewart Duncan and Richard Fongeallaz, All Rights Reserved. Pallets are composed simply of a rough grid of boards capable of being lifted using A forklift or like machinery and are used for transporting a number of goods. There are usually composed of three longitudinal boards overlaid with a series of horizontally lying flat hoards which serve as the surface for supporting the transported goods. Wooden pallets are the most common type of pallet and are constructed using wooden boards. These boards may be recycled and used for other purposes if the pallet can be dismantled without damaging the board. Current prying devices may dismantle pallets, however they tend to splinter the boards and are difficult to use, particularly manually. Disclosed is an apparatus for dismantling pallets. The preferred structure of the apparatus broadly comprises a handle, which is a rigid elongated handle, having a free end for engaging with an operator, and an attachment end for coupling with a crossbar. In removable and adjustable communication with the crossbar are a plurality of blades (preferably two, parallel blades) extending rigidly forward from the crossbar so as to form a prying claw. The position of the blades is adjustable along the horizontal axis of the crossbar. When in use, the blades are adjusted so as to flank the longitudinal board of the pallet and the blades are placed underneath the board sought to be pried. The blades are preferably steel and have an upper portion for engaging a horizontal board of a pallet and a lower curved portion. Each blade has a notched aperture for receiving the crossbar. The notched aperture comprises preferably eight grooves having an angular configuration with 90° angles capable of receiving the crossbar, which may have a preferably square or generally quadrangular cross section. In addition, the apparatus comprises a plurality of wheels located just behind the peak of the lower curved portion of the blade such that the axis formed between at least two wheels forms a fulcrum point about Which the apparatus pivots during use. These wheels may be located on an inward facing side of a blade or the outward facing side of as blade, or both. In embodiments where the wheels are positioned on the inward facing side of the blades, the wheels serve to reduce the amount of downward force necessary to pry a board lose from the pallet. The wheels also serve as a rolling axis for transporting a pallet or board resting on the blades. These features are further discussed in the Detailed Description, as are the variations contemplated and described in the therein, the content of which is incorporated in this Summary. With reference to the drawings, the apparatus 101 is concerned with the dismantling of standard wooden pallets without splintering and breaking their boards. Pallets generally have two or three longitudinal boards, e.g., 12, 12a,b. On the top and bottom of these longitudinal boards are attached several perpendicular horizontal boards, e.g., 13. A longitudinal board 12 and a horizontal hoard 13 are usually attached to one another with nails. The pallet shown in The preferred structure of the apparatus as shown in In the preferred embodiment, the apparatus receives two blades, blades 3 and 4. The blades have a curved portion along the lower edge (serving as a general point of pivot) (hereinafter referred to as the “lower curved portion”) and an upper portion along the opposite end for engaging with a horizontal board of a pallet. The blades are preferably constructed using a sturdy, solid material such as steel, iron, or other metal or a mixture of metals having a similar rigidity as steel or iron. As shown for example in the environmental view of Continuing with Further detailed structures of the apparatus shall now be described. The apparatus has a plurality of blades, each having corresponding structures for coupling each blade with the crossbar. At times in this disclosure it is convenient to describe the structures on one blade for coupling the blade to the crossbar with the understanding the additional blade or blades will have corresponding structures for coupling it to the crossbar. The exception to this is that blade tips may have differing shapes, as shown in Blades 3,4 are secured on the crossbar by clamping them to the crossbar. Closure trim 6, having a shape that conforms to the crossbar 18 may be added, but is not required. Clamping bolt 5a,b secures the blade to the crossbar at an opening 23 on the rear side of the blade 3,4. The clamping bolt 5a,b is used as part of means for clamping the to the crossbar using frictional clamping which n described next, This bolt may be loosened so that a given blade 3, 4 may be oriented in any position along the horizontal axis of the crossbar, and then tightened when the blade is placed at the desired location. Frictional clamping is achieved broadly by tightening the notched aperture 15A around the crossbar slightly. For ease of explanation, this Detailed Description describes exemplar means for clamping one blade (blade 3) as shown on The apparatus also has wheels. These wheels may be positioned on the outward facing side of the blades as shown in Continuing with Because the apparatus has at least two wheels (at least one on each blade) an axis 21 exists between the at least two wheels defining a fulcrum point which is the peak 22 of the lower curved portion 28 of the blade 3 about which the apparatus pivots when a rearward and downward force is applied on the handle 19. To that end, the apparatus functions so as to receive a downward force on handle 19, causing the blades 3, 4 to engage with a horizontal board, e.g., 13, to loosen the horizontal board from the pallet. To use the apparatus, an operator positions the blades so that they are spaced to closely fit around the longitudinal hoard of a pallet. Then, the operator places the blades tips under the horizontal board (as depicted in Advantages to the apparatus include the reduction in splintering and breaking of pallet boards that can occur using standard prying devices to dismantle pallets. This is because the construction of the lower curved portion 28 and positioning of the blades along the crossbar together allow the apparatus to smoothly remove the pallet boards. This is further aided by the addition of wheels behind the peak 22 of the lower curved portion 28. In use, the apparatus disclosed is so gentle on pallets that virtually all boards removed from a pallet using the apparatus may be reused. The foregoing has been a detailed description of two preferred embodiments of the apparatus, however, various modifications and equivalents can be made without departing from the scope and spirit of the invention. For example, the apparatus may be fashioned using various ornamentation, out of materials of varying metal blends for the blades. The handle may be made of metal, wood, or other similar rigid material. Components such as the screws, bolts, and etc., may be made from various metals known in the art. The closure trim 6a,b are preferably plastic, but may also be metal or other similar material. The apparatus may be used at various locales along any longitudinal board. Some connections between the various boards may be stiffer than others and may require more or less prying force. For example, a nail may be embedded in a denser location of a board in one location than in another, making it harder to pry that portion of the horizontal board loose from its longitudinal board. Or, a nail may be positioned in such a way as it would give way more readily than in other locations. The apparatus may be used for other operations and is not limited to use with pallets. Also, the operator may be human or a mechanical/electronic operator. Therefore, this description is mean to be taken by way of example and not to limit the scope of the invention. |