The present invention relates to cord reels for storing electrical and other cords.
Long, bulky electric cords are unwieldy items for storage. They are easily tangled if compressed into a box, but take up too much space if laid out outside of a box to avoid tangling. A common solution to this problem is to wrap the cord around a large reel. These reels are generally made of three pieces of rigid plastic—a cylindrical core and two sides on either side of the core. Although such plastic reels address the problem of electric cord storage, as they are rigid and not compressible, they take up a fairly large volume considering the relatively small amount of material inherent in the product. This means that manufacturers have to ship out large volumes with relatively few products within the volume; sellers have to designate a large amount of space for display and storage of items that are fairly inexpensive; and if the end user owns one or more of the product but is not using it, he or she must also designate a fairly large amount of space for storage without utility. Therefore there is a need for a reel sturdy enough to store long, bulky electric cords when in use, but that is compressible while not in use, such as during shipping or storage without an electric cord.
The present invention is a compressible reel. In its most basic form, the compressible reel of the present invention includes two flanges, a flange connector, and two core wraps, where the flange connector and core wraps include scoring such that the compressible reel may be compressed substantially flat.
Each component of the reel is made of a material sturdy enough to support the weight of an entire wrapped, bulky electric cord, but malleable enough to be scored for folding. The preferred material is corrugated plastic. Corrugated plastic has a grain, and the grain of the corrugated plastic of each component relative to the others is an important aspect of the reel of the present invention, as discussed below.
The reel of the present invention includes two preferably substantially square, flat flanges. The length of each side of the flanges is preferably approximately 26.1″, although the sides may be longer or shorter than this length, and may not be precisely equal in length. The flanges preferably have rounded corners so as to avoid poking handlers of the reel. When it is said that the reel of the present invention includes two “substantially square” flanges, “substantially square” is referring to the possible derivations away from perfect square shape in that the sides may not be precisely equal in length and the corners may be rounded. “Substantially square” should therefore refer to perfectly square shapes, as well as shapes that may not have precisely equal length sides and/or rounded corners.
Each flange includes two flange core wrap slots. The flange flaps of the core wrap come through the flange core wrap slots, as discussed below. Each flange also includes sealing proximate to the flange core wrap slots so as to seal the flange flaps of the core wrap to the flanges. This sealing is preferably metal bolts or rivets, but may be heat sealing, or any other type of sealing that will permanently affix the side flaps of the core wrap to the flanges, such as sealing by sonic welding. Each flange also includes other sealings that seal the flange to the octagon portions of the flange connector, discussed in more detail below. These sealings are preferably heat sealings, but may be metal bolts or rivets, or any other type of sealing that will permanently affix the octagon portions of the flange connector to the flanges, such as sealing by sonic welding. As mentioned above, the flanges have a grain, and this grain has a flange grain direction. The flanges preferably include a center hole, and at least one additional hole, where the center hole is preferably slightly larger than the at least one additional hole. The center hole and at least one additional hole may be used to hang the reel. The flanges also preferably include finger holes at each corner to aid in carrying the reel.
The reel of the present invention also includes a flange connector. The flange connector is made of material of the same thickness as the flanges. The flange connector is a long piece of material that is wrapped around to connect with itself, and the wrapped flange connector connects the two flanges of the reel. When not wrapped, from one end to another, the flange connector is preferably approximately 45.8050″ long, but may be longer or shorter. When wrapped, the flange connector consists of two regular polygons opposite from one another, with the polygons connected by two bridges opposite from one another. The preferred polygon is an octagon, but could be any polygon, such as one with 4, 5, or 6 sides. The preferred distance between opposite sides of the preferred octagon polygon is 14.4125″, but may be greater or less than this distance. As the flange connector is initially a long piece of material, one of the octagons is split in half. Therefore the flange connector has a first end, which is a side of a first half octagon, a first bridge, an octagon, a second bridge, a second half octagon, and a second end, which is a side of the second half octagon. When wrapped, the first and second ends meet so that the first and second octagon halves form a second full octagon opposite the octagon. Each side of the octagon has a length that is preferably approximately 4.2213,″ but may be longer or shorter. It is understood that the dimensions cited above are exemplary, and that the size of the compressible reel of the present invention, including the sizes of its component parts, may vary substantially.
The octagon and first and second half octagons that form an octagon when put together are connected to the centers of the flanges of the reel. Therefore in embodiments of the reel where the flanges include center and additional holes, the octagons of the flange connector have corresponding holes. The first and second half octagons share a center hole, so that each has a semicircular tab indented from the first and second ends, and when the first and second ends meet, the semicircular tabs of each half octagon form the center hole that aligns with the center hole of a flange of the reel and with the center hole of the octagon. The octagon and first and second octagon halves also include sealings with the flanges. As discussed above, these sealings are preferably heat sealings, but may be any type of sealing commonly used in the art.
The first and second bridges of the flange connector connect the first half octagon and the octagon, and the octagon and the second octagon, respectively. There are four bridge single scorings between the first half octagon and the first bridge, between the first bridge and the octagon, between the octagon and the second bridge, and between the second bridge and the second half octagon. These single scorings are a single line of premade scoring across the flange connector that allow the flange connector to easily bend at these places, but is not such a deep scoring that the flange connector could be folded flat at the single scorings. Each bridge also includes a bridge double scoring parallel to the bridge single scorings along the center of each bridge. This double scoring allows the bridge to be folded essentially flat at the double scoring if some pressure is applied. Each of the bridge single scorings and bridge double scorings run perpendicular to the bridge grain direction. Each bridge also includes a connector core wrap slot along the center of the bridge, perpendicular to the bridge double scoring. The connector tabs of the core wraps are placed through the connector core wrap slots to form the reel, as discussed below.
The reel of the present invention also includes two core wraps. The two core wraps are made of slightly thinner material than the flanges and flange connector. This is so that it may fold more easily. The core wraps wrap around the flange connector between the two flanges to form the reel. The core wraps include flange flaps at the center of their long sides, which are the reel flange edges and are in contact with the flanges of the reel. The flange flaps protrude through the flanges and are affixed to the flanges preferably by rivets or metal bolts, as discussed above with reference to the flanges of the reel. The core wraps include connector tabs at the center of their short sides. The connector tabs tuck into the connector core wrap slots of the bridges of the flange connector. When unwrapped the core wraps are long strips of substantially rectangular material, but for the flange flaps and connector tabs. The unwrapped core wraps are preferably approximately 29.4282″ long at their longest points, from the end of one connector tab to the end of the other, but may be longer or shorter. The core wraps are preferably approximately 11.1790″ at their widest width, from the edge of one flange flap to the edge of the other, but may be longer or shorter.
The core wraps include several scorings. The core wraps include a wrap double scoring along the center of the length of the core wrap parallel to the reel flange edges, and extending through the connector tabs. This wrap double scoring is similar to the bridge double scoring of the flange connector in that it allows the core wrap to fold essentially flat when enough force is applied to the wrap double scoring. The core wrap also includes four wrap single scorings perpendicular to the wrap double scoring. Two of the wrap single scorings are disposed on either side of the flange flaps. The other two wrap single scorings are disposed on either side of the two wrap single scorings disposed on either side of the flange flaps. Each wrap single scoring is a distance away from the next that is equal to the length of one side of the octagon. As discussed above, with the preferred octagon polygon, each side of the octagon, and therefore the distance between the wrap single scorings, is approximately 4.2213″. The core wraps have a grain that has a core wrap grain direction that is parallel to the wrap double scorings and perpendicular to the wrap single scorings.
The reel of the present invention may be shifted between a reel position and a compressed position. In either position, the octagon portions of the flange connector are sealed to the flanges and the flange flaps of the core wrap are disposed through the flange core wrap slots and sealed to the flanges. When the reel is in the reel position, it is ready to receive and store an electric cord or any other type of cord that may be wrapped around and stored on a reel. In this position, the core wrap is wrapped around the space between the flanges and the connector tabs of the core wrap are tucked into the connector core wrap slots. In this position, the bridge grain direction is perpendicular to both the flange grain direction and the core wrap grain direction. This antidirectionality of the bridge grain strengthens the reel at these connections where a great deal of pressure will be exerted during the reel's use.
When the reel is in the compressed position, pressure is exerted on the wrap double scorings and bridge double scorings so that they fold essentially flat. As there are several layers of sturdy material pressed together, the reel is not totally flat in the compressed position, but the distance between the flanges is greatly reduced from the reel position. The ability of the compressible reel of the present invention to be compressed flat is a great improvement over prior art. This ability means that more reels may be shipped per volume from the manufacturer, that less space is used for display and storage by the seller, and that less space is used by the owner who is not using the reel. Although the reel of the present invention is envisioned primarily for use with electric cords, it is understood that the reel may be used in conjunction with a variety of products that may be dispensed by reel.
Therefore it is an aspect of the present invention to provide a sturdy cord reel that may be compressed essentially flat when not in use.
It is a further aspect of the present invention to provide a cord reel made of corrugated plastic and using the grain of the corrugated plastic to strengthen the reel.
These aspects of the present invention are not meant to be exclusive and other features, aspects, and advantages of the present invention will be readily apparent to those of ordinary skill in the art when read in conjunction with the following description, accompanying drawings, and claims.
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Flange flaps 56 are secured to flange 12 with rivets 27. Flange 12 is secured to flange connector 16, shown in
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Although the present invention has been described in considerable detail with reference to certain preferred versions thereof, other versions would be readily apparent to those of ordinary skill in the art. Therefore, the spirit and scope of the description should not be limited to the description of the preferred versions contained herein.
This application claims the benefit of priority of U.S. Provisional Patent Application Ser. No. 61/770,644, filed on Feb. 28, 2013.
Number | Date | Country | |
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61770644 | Feb 2013 | US |