Patent Application
20220099245
The present invention relates generally to devices and methods for holding accessories to the surface of sports equipment, such as stand up paddleboards, known as “SUPs,” where in the regular course of activity, items desirably positioned near the user on the upper surface are subjected to wave, water, and motion which tends to knock such items off the upper surface. The invention includes magnetically coupling the items to the sports equipment by placing magnets on or just below the upper surface.
For a wide variety of water and land vehicles, e.g., boats, automobiles, trucks, and all-terrain vehicles (ATVs), significant surrounding structures provide many opportunities to mount drink holders and other devices for holding a variety of accessories. For boats, drink holders can be hung on lifelines or mounted on wheel steering pedestals, or otherwise supported on vertical structures. Accessories like tools, flashlights, cameras, knives and other items can be stored in lazarettes, lockers, glove boxes and other structures which enclose the accessories.
Adventurers who use kayaks, canoes, rowboats and other open deck watercraft often store accessories in containers placed under seats or simply placed rested on the floor of the watercraft. Fetching the accessories does not present an appreciable problem: the adventurer can simply stop paddling or rowing, reach for the container, extract the accessory and use at will. Drinks kept in coolers, as well as accessories, are easily accessed because the adventurer uses the watercraft in a sitting position. Similarly, boats, ATVs and other land vehicles have bulk and vertical structures that keep accessories from being lost or ejected from movement of the boat or vehicle.
Stand up paddleboards, or SUP's, have become popular because of many factors, not the least of which include the inexpensive nature of ownership, storage and maintenance. This is particularly true of inflatable SUPs which can be rolled up and stored in a very small space, and then inflated after carried in an automobile, or in a backpack or carry bag, to the place of intended use. SUPs also provide exercise, by having the use stand on the upper surface and paddle with a single, relatively long-handled paddle. Paddling a SUP uniquely works out a wide range of muscles in the legs, arms, back, stomach and shoulders. While obtaining a high degree of exercise, the user is also experiencing locomotion, traveling from one point of interest to another, thereby achieving a recreational goal while simultaneously exercising.
Unlike boats, a SUP does not have storage space for accessories or coolers, nor do they have vertical structures for hanging or otherwise mounting a drink holder. Accessories such as pocketknives, sunglasses, and drinks are awkward to deal with because a SUP is essentially a two-dimensional structure which, when deployed in water, presents only a relatively flat deck or upper surface on which the user stands. Any item placed on the deck will easily slide off because of motion, or wash overboard when water breaches the surface, as naturally happens when the SUP is in motion.
Drink holders for SUPs are generally known. One known type uses a suction cup to stick a drink holder to the deck of a SUP. A user of places a drink in the drink holder, and as long as the suction cup maintains a grip, the drink is available to the user by bending over and grabbing the drink from the drink holder.
One problem with suction cup-type drink holders is that the suction can be easily disrupted when the drink holder is jarred, or when the wetted upper surface of the SUP facilitates sliding of the suction cup away from the initial point of fixture. Further, suction cups require a perfectly flat surface to make a good connection, such that suction cups for SUPs with textured surfaces, which prevent the user from slipping while paddling, will not work to a reliable degree.
Another type of known drink holder for SUPs involves the use of Velcro (complementary micro-hooks and micro-loops) where a patch of material is glued to the surface of the SUP, and the complementary material is glued to the bottom surface of the drink holder. The problem with this type of drink holder is that the glued surfaces are exposed to water, and will weaken over time. Moreover, there is a tendency for the micro-structures to become less connective as they accumulate particulate debris such as algae and other aquatic plant life.
A problem associated with both types of drink holders mentioned above is that neither of them are capable of holding in a stable manner accessories other than drinks. For example, if a pocketknife is placed in a drink holder, it can bounce or wash out with relatively little motion. Thus, it would not be recommended for a drink holder, held to the surface with Velcro or suction cups, to hold anything but a canned or bottled drink.
A continuing need exists for an improved way of holding drinks and accessories on a flat surface, such as that of the deck of a SUP.
In one aspect of the present invention, an apparatus for detachably coupling an accessory to a flat surface includes a magnet adapted to be placed in a position on the flat surface, and a patch disposed over the magnet and being bonded to the flat surface to thereby encapsulate the magnet between the flat surface and the patch. As a result, accessories having a ferrous metal component are detachably coupled to the flat surface when brought within the influence of a magnetic field generated by the magnet.
Preferably, the flat surface is the deck or upper surface of a stand up paddleboard (SUP) and the magnet is permanently bonded, adhesively or thermally, or other suitable means for permanent bonding, to the upper surface at a position selected to allow the user easy access. The preferred position is forward of where the user stands and approximately along the longitudinal centerline of the SUP. A user can simply bend over without repositioning a stance to grab accessories. The magnetic force binding the accessory to the magnet is of such flux density to allow extraction with a few foot-pounds of energy, enough to stay attached through normal operation of the SUP (where water rushes over the deck, the deck pitches, rolls and yaws, and slight to medium bumps of the accessory with a paddle, foot, hand or debris floating in the water will not easily dislodge the accessory.
Preferably, the magnet has a residual flux density (Br) of 14.5 to 14.8 KGs, a coercive force (Hc) of >11.2 KOe and a maximum energy product (BHmax) of 49.5 to 52 MGOe. Magnets of different properties can be used, so long as the goal of forming a detachable binding of accessories to the SUP is achieved. This means that the magnet should be strong enough to resist disruption and unintentional forces, such as when the accessory encounters an onrush of water, a violet pitch, roll or yaw motion of the SUP, or slight bumps of the accessory with a paddle, debris in water or the foot or hands of a user. Forces of up to a few foot-pounds of energy should be required to remove the accessory from the board. This allows the user to reach down a grab an accessary and remove it from the board with relative ease, but at the same time, inadvertent and unintentional forces, which might otherwise remove the accessory, are resisted. The user can maintain momentum on the board, without having to stop to use both hands or reposition himself on the board to extract an accessory from a holding mechanism.
The invention contemplates the magnetic coupling for accessories to be either a retrofit kit for existing SUPS, boards, surfers, etc., or pre-installed at the factory. Preferably, the magnetic coupling is pre-installed to ensure favorable bonding and to preserve the graphics on the deck. Preferably, the placement of the magnet is done in coordination with the SUP graphics so that it blends into the overall surface design.
As a kit, the magnetic coupling would include a magnet, a patch, and a supply of glue, with instructions on where to place the magnet and how to attach the magnet, such as by first location a place on the SUP for a desired location, then applying glue to one side of the magnet and placing the glued magnet in the selected location. After the glue as dried, the next step is the apply glue to the periphery of the patch and then place the patch over the magnet, ensuring that the outer edge of the patch completely encapsulates the magnet between the upper surface of the SUP and the patch. This encapsulation ensures that the magnet is not exposed to water.
Preferably, the apparatus may further include a layer of EVA foam traction material. In addition to providing traction for the user while standing and paddling on the board, the EVA foam layer further enhances the connection of the magnet to the SUP, and provides a more or less flush surface, rather than a simple “bump” where the magnet is mounted. The flush surface assists in the magnetic detachable connection of accessories to the SUP.
In another aspect of the present invention, a stand up paddle board (SUP) or similar kayak or comparable sea craft, such as a kayak, surfboard, windsurfer and the like, includes an inflatable body made of drop stitch fabric and including an upper surface, at least one magnet bonded to the upper surface of the body, whereby the at least one magnet is capable of detachably coupling to an accessory having a ferrous metal component. Any type of accessory is capable of being detachably coupled to the flat surface of the sea craft when brought within the influence of a magnetic field generated by the magnet.
The invention further includes the combination of a sea craft, such as an inflatable stand up paddleboard, a magnet, and a drink holder having a ferrous metal component which detachably couples the drink holder to the upper surface of the sea craft.
A further aspect of the invention is to provide a drink holder and means for magnetically coupling the drink holder to the deck or upper surface of a sea craft, such as a stand up paddleboard. The drink holder includes a magnet that is capable of being connected permanently to the upper surface so that the drink hold can be magnetically couple to the sea craft through the magnetic force generated by the magnet.
Other aspects of the invention will become apparent in view of the following detailed description and claims.
The present invention is described below with reference to an inflatable stand up paddleboard (SUP), as the present invention is particularly suitable for such inflatable structures that are typically made of drop stitch fabric, which is well known in the art. Using drop stitch fabric, a SUP is made to include an upper surface, which acts as a deck, and a lower surface, which forms the bottom. The thickness of a typical SUP is typically a few inches and thus the side surfaces of the SUP form what amounts to what would be “freeboard” on a boat. When a user stands on the SUP, the freeboard aspect is pushed down by the weight of the user so as to present a diminished profile, such that the SUP takes on a near two-dimensional appearance, which no vertical structures to support accessories. Drop stich fabric, having yarns extending between upper and lower sheets of material, allow for inflation at pressures much greater pressures, thus imparting a physical strength and hardness comparable to solid SUPs or surfboards.
Further, while the present invention is described in detail with reference to inflatable SUPs, other types of aquatic sport structures can benefit from the present invention, including inflatable and/or solid wind surfers, kayaks, surf boards and other structures that essentially present a low to non-existing side profile.
Referring now to
Details of how the magnet 20 is attached to the upper surface 18 are shown in
The magnet 20 is preferably glued or otherwise adhesively bonded to the upper surface of the SUP 10, which is the upper surface of the upper sheet 22, using any known and suitable adhesive materials or thermal bonding techniques. A cover or patch 28, preferably made of PVC fabric material, is adhesively bonded to the upper surface 18 to encase the magnet 20 in a watertight chamber. The magnet 20 is preferably a rare earth two-inch diameter disc. It is preferred to use the strongest magnet available for a limited amount of space. For that purpose, rare earth magnets, and particularly, neodymium magnets are preferred. These are permanent magnets made from an alloy of neodymium, iron and boron to form the Nd2Fe14B tetragonal crystalline structure. These are commercially available from a variety of sources, and are widely considered the strongest type of permanent magnets available commercially.
As seen in
As seen in
If the drink holder 36 is made of a thin ferrous metal, it will magnetically couple to the upper surface 38 of the SUP 32, preferably with a force that will resist relatively light disturbances, while being relatively easy to de-couple by hand whenever the user wants to remove the drink holder 36. The preferred shape of the drink holder is to define at least two tiers to accommodate canned or bottled drinks of different diameters, such as seven and twelve ounce cans and bottles.
If the drink holder 36 is made of plastic or non-ferrous metals, a ferrous metal plate 42 is adhesively bonded to or otherwise physically attached to the bottom of the drink holder 36. In this way, the drink holder 36 is magnetically coupled to the upper surface of the SUP 32. Both the bottom of the drink holder 36 and the metal plate 42 are provided with a centrally located hole to allow water to drain from the drink holder 36.
In use, the drink holder 36 holds a beverage, and the user can reach down and remove the beverage from the drink holder 36, in which case, the magnetic coupling remains unbroken. Alternatively, the user can remove the drink holder 36 containing the beverage, by reaching down and pulling the drink holder 36 with sufficient force to break the magnetic coupling. In either case, the drink holder 36 is a convenient place to hold a beverage and is easily accessible by the user. If the drink holder 36 is insulated, which the present invention contemplates as an alternative embodiment, it is preferred to remove the drink holder 36 when the user needs to have a drink.
The drink holder 36 can also serve as a holder of non-ferrous accessories, such as sunglasses, tubes of sunscreen, cell phones, video cameras and the like. Accessories that have ferrous metal components, such as pocketknives, tools, and the like, can be held in the drink holder 36 as well. The drink holder 36 may provide an extra measure of security from inadvertent dislodging, for such accessories. The drink holder 36 could also be provided with a lid and a tether strap, so that the user could be tethered to the drink holder 36 in case a large dislodging force de-couples the drink holder 36 from the SUP 32.
While the embodiments described herein include a magnet bonded to the deck of a stand up paddleboard, which magnetically attracts a ferrous metal component of an accessory or a drink holder, it is possible that the positions can be switched, such that a ferrous metal element is embedded in or connected to the deck, and a magnet is provided in the drink holder. Other accessories could be modified to include a magnet so that they too could be magnetically coupled to the deck.
Although specific embodiments of the present invention have been described, it will be understood by those of skill in the art that there are other embodiments that are equivalent to the described embodiments. Accordingly, it is to be understood that the invention is not to be limited by the specific illustrated embodiments, but only by the scope of the appended claims.
