The present invention relates generally to hydrofoils, and more specifically, to a hydrofoil assembly system for ease in mechanically mating hydrofoil components.
Hydrofoils generally are surfaces that interact with water as those surfaces are propelled forward. Hydrofoils include a wing or multiple wings mounted on a strut or multiple struts that position the wing or wings in the water. In some designs, the wing or wings interact with the water at speed to create lift, often reducing some or all of a hull or board surface from the water; thereby decreasing water drag resistance. This decrease leads to some or all of better efficiency, additional speed, and/or smoother rides. Designers attach hydrofoil(s) or foil(s) to boats, personal watercraft, surfboards, kiteboards, windsurfing boards, and the like.
For example,
One challenge of hydrofoil systems is the difficulty in changing the various components after assembly of the hydrofoil, particularly the complexity, time, and needed tools for changing from one hydrofoil component to another, for example different sized wings. Hydrofoil components may be attached together by removable bolts or other fasteners. These hydrofoils often require tools, such as a screwdriver, and often a specialty screwdriver like a torx or hex head screwdriver, to attach and remove components of the hydrofoil. Tool-based attachment mechanisms can be inconvenient and tedious and add weight to the hydrofoil. Additionally, screws can become corroded over time. Accordingly, although strides have been made in the area of hydrofoils, many shortcomings remain.
The systems and methods of use described in the present application overcome one or more of the above-discussed problems commonly associated with conventional hydrofoils, improve the aesthetics, and/or provide straightforward and/or convenient operation and use. These and other unique features of the systems and methods of use are discussed below and illustrated in the accompanying drawings.
Any feature, structure, or step disclosed herein can be replaced with or combined with any other feature, structure, or step disclosed herein, or omitted. Further, for purposes of summarizing the disclosure, certain aspects, advantages, and features of the inventions have been described herein. It is to be understood that not necessarily any or all such advantages are achieved in accordance with any particular embodiment of the inventions disclosed herein. No individual aspects of this disclosure are essential or indispensable.
Various embodiments are depicted in the accompanying drawings for illustrative purposes and should in no way be interpreted as limiting the scope of the embodiments. Furthermore, various features of different disclosed embodiments can be combined to form additional embodiments, which are part of this disclosure.
Methods of assembling the hydrofoil can include connecting various components of the hydrofoil with toolless connections. Each toolless connection can be secured by inserting a connection portion on a first component into a keyed connector on a second component and rotating the first component relative to the second component to prevent axial and/or radial movement between the first component and the second component. For example, the method can include inserting a first or front connection portion 140 on the mast assembly 110 into a keyed connector 116 in the front wing 108 and rotating the mast assembly 110 relative to the front wing 108. The method can include inserting a second or rear connection portion 142 on the mast assembly 110 into a keyed connector 116 in the shaft housing 114 and rotating the shaft housing 114 relative to the mast assembly 110. The method can include inserting a connection portion 168 on the rear wing 112 into a keyed connector 116 in the shaft housing 114 and rotating the rear wing 112 relative to the shaft housing 114. Each rotational step can include rotating the hydrofoil components by less than or equal to about 360 degrees (or less than or equal to about 270 degrees, or less than or equal to about 180 degrees, or less than or equal to about 90 degrees) to prevent axial and/or radial movement of the hydrofoil components. Although the keyed connectors and connection portions are described as being on particular components, the arrangement of keyed connectors and connection portions could be reversed. The hydrofoil components may be toollessly disassembled by reversing the steps described herein.
As described in more detail below, each toolless connection may include a connection portion on a first component of the hydrofoil and a keyed connector on a second component of the hydrofoil. The keyed connector is configured to mate with the connection portion. The connection portion can include a connector body. The keyed connector can include a body defining a lumen. The keyed connector can include one or more first connection features configured to interface or interlock with corresponding first connection feature(s) on the connection portion to prevent axial movement between the keyed connector and the connection portion. The keyed connector can include one or more second connection features configured to interface with a corresponding second connection(s) feature on the connection portion to prevent radial movement between the keyed connector and the connection portion, for example by a press fit or a snap fit. The keyed connector can include an alignment feature configured to interface with a corresponding alignment feature on the hydrofoil component in which the key connector is positioned and/or the connection portion to provide alignment. The toolless connection can include a seal between the keyed connector and the connection portion.
A mass of the front wing 108 may be less than or equal to 10 lbs., or less than or equal to about 9 lbs., or less than or equal to about 8 lbs. A surface area of the front wing 108 may be less than or equal to about 1000 sq. inches, or less than or equal to about 750 sq. inches, or less than or equal to about 700 sq. inches, or less than or equal to about 600 sq. inches, or less than or equal to about 500 sq. inches. A volume of the front wing 108 may be less than or equal to about 500 cubic inches, or less than or equal to about 250 cubic inches, or less than or equal to about 200 cubic inches, or less than or equal to about 150 cubic inches. A density of the front wing 108 may be less than or equal to about 0.1 pounds per cubic inch, or less than or equal to about 0.05 pounds per cubic inch.
Although
As explained above, the front wing 108 may be joined to the mast assembly 110 using one or more internal connectors that may be assembled without any tools. For example, the toolless connections described herein may include a keyed connector 116, shown in
The keyed connector 116 may include one or more connection features to resist or prevent movement between the front wing 108 and the mast assembly 110. For example, the body 126 may include a first connection feature to resist or prevent axial movement between the front wing 108 and the mast assembly 110. The first connection feature may include one or more passageways 132, 134. The passageways 132, 134 may extend at least a partial thickness or a full thickness of the body 126. As shown in
The keyed connector 116 may include a second connection feature to resist or prevent radial movement between the front wing 108 and the mast assembly 110. The body 126 may include the second connection feature on an end face of the body 126. For example, the second connection feature may include a one or more grooves 128 on a rear face of the body 126. Each groove 128 may have an arcuate profile. The groove 128 may be bounded at one end and open at the other end, for example open to the passageway 132. Each groove 128 may include a socket 129 at the bounded end of the groove 128. The socket 129 may extend further than the remainder of the groove 128 in the axial direction. In other configurations, the second connection feature may include a projection extending from an end face of the body 126.
The keyed connector 116 may include an alignment feature to provide alignment between the keyed connector 116 and the front wing 108. The alignment feature may include a projection 136 extending from the body 126. The projection 136 may extend along a partial length of the body 126 in the axial direction. The projection 136 may include an arcuate profile in the radial direction. Although the alignment feature is illustrated as a projection 136, the alignment feature may instead include a groove.
Although the keyed connector 116 is described with respect to the front wing 108, the keyed connector 116 may be positioned within a lumen of any of the hydrofoil components (see
A mass of the mast assembly 110 may be less than the mass of the front wing 108. For example, the mass of the mast assembly 110 may be less than or equal to 10 lbs., or less than or equal to about 9 lbs., or less than or equal to about 8 lbs., or less than or equal to about 7 lbs. A surface area of the mast assembly 110 may be less than or equal to the surface area of the front wing 108. The surface area of the mast assembly 110 may be less than or equal to about 500 sq. inches, or less than or equal to about 450 sq. inches, or less than or equal to about 400 sq. inches, or less than or equal to about 350 sq. inches. A volume of the mast assembly 110 may be less than or equal to the volume of the front wing 108. The volume of the mast assembly 110 may be less than or equal to about 150 cube inches, or less than or equal to about 100 cubic inches, or less than or equal to about 75 cubic inches, or less than or equal to about 50 cube inches. A density of the mast assembly 110 may be less than or equal to about 0.1 pounds per cubic inch, or less than or equal to about 0.08 pounds per cubic inch.
The front connection portion 140 may include a connector body 148 projecting from the connector end 146. An outer cross-sectional profile of the connector end 146 may be a different shape from an outer cross-sectional profile of the connector body 148. For example, the connector end 146 may have a polygonal cross-sectional profile, and the connector body 148 may have a circular cross-sectional body.
The front connection portion 140 may include one or more connection features to resist or prevent movement between the front wing 108 and the mast assembly 110. For example, the front connection portion 140 may include a first connection feature to resist or prevent axial movement between the front wing 108 and the mast assembly 110. The first connection feature may include one or more projections 150 extending from the connector body 148. When more than one projection 150 is present, the projections 150 may be circumferentially and/or axially offset along the connector body 148. Each projection 150 may include a cutout 152 keyed to interface or interlock with the corresponding passageway in the keyed connector 116. When the front connection portion 140 includes more than one projection 150, the cutouts 152 may face different directions. Although the first connection feature is illustrated as a projection 150, the first connection feature may instead include a groove or passageway.
The front connection portion 140 may include a second connection feature to resist or prevent radial movement between the front wing 108 and the mast assembly 110. The front connection portion 140 may include the second connection feature on an end face of the connector end 146. For example, the second connection feature may include a one or more protrusions 156 on the face of the connector end 146. The one or more protrusions 156 may be displaced from the end face of connector body 148. Each protrusion 156 may include a rounded or ball-shaped profile. The second connection feature may include two circumferentially spaced apart protrusions 156. The protrusions 156 may be diametrically positioned on opposite sides of the connector body 148. As shown in
A mass of the shaft housing 114 may be less than the mass of the front wing 108. A mass of the shaft housing 114 may be greater than the mass of the mast assembly 110. For example, the mass of the shaft housing 114 may be less than or equal to 10 lbs., or less than or equal to about 9 lbs., or less than or equal to about 8 lbs., or less than or equal to about 7 lbs. A surface area of the shaft housing 114 may be less than or equal to the surface area of the front wing 108 or the mast assembly 110. The surface area of the shaft housing 114 may be less than or equal to about 500 sq. inches, or less than or equal to about 450 sq. inches, or less than or equal to about 400 sq. inches, or less than or equal to about 350 sq. inches, or less than or equal to about 300 sq. inches, or less than or equal to about 250 sq. inches, or less than or equal to about 200 sq. inches. A volume of the shaft housing 114 may be less than or equal to the volume of the front wing 108 or the mast assembly 110. The volume of the shaft housing 114 may be less than or equal to about 150 cubic inches, or less than or equal to about 100 cubic inches, or less than or equal to about 75 cubic inches, or less than or equal to about 50 cubic inches. A density of the shaft housing 114 may be less than or equal to about 0.1 pounds per cubic inch.
A mass of the rear wing 112 may be less than any of the other components of the hydrofoil 104. For example, the mass of the rear wing 112 may be less than or equal to 5 lbs., or less than or equal to about 4 lbs., or less than or equal to about 3 lbs., or less than or equal to about 2.5 lbs. A surface area of the rear wing 112 may be less than or equal to the surface area of any of the other components of the hydrofoil 104. The surface area of the rear wing 112 may be less than or equal to about 500 sq. inches, or less than or equal to about 400 sq., inches, or less than or equal to about 300 sq. inches, or less than or equal to about 250 sq. inches, or less than or equal to about 200 sq. inches, or less than or equal to about 150 sq. inches. A volume of the rear wing 112 may be less than or equal to the volume of any of the other components of the hydrofoil 104. The volume of the rear wing 112 may be less than or equal to about 100 cubic inches, or less than or equal to about 75 cubic inches, or less than or equal to about 50 cubic inches. A density of the rear wing 112 may be less than or equal to about 0.1 pounds per cubic inch.
Although
A kit may be provided where the kit includes any combination of the components described herein. Moreover, the kit may include different shapes or sizes of any of the components described herein, for example the front wing, rear wing, mast, and/or baseplate. For example, the kit may include different sized and/or shaped components for surfboards and kiteboards.
As used herein, the terms “front” and “rear” are defined from the perspective of the surfboard in use.
Note that the terms “first” and “second”′ can be used interchangeably (e.g., first connection feature and second connection feature) and does not require the presence of the “first” and “second” features to be present.
The terms “comprising,” “including,” “having,” and the like are synonymous and are used inclusively, in an open-ended fashion, and do not exclude additional elements, features, acts, operations, and so forth. Also, the term “or” is used in its inclusive sense (and not in its exclusive sense) so that when used, for example, to connect a list of elements, the term “or” means one, some, or all of the elements in the list.
Conditional language used herein, such as, among others, “can,” “might,” “may,” “e.g.,” and the like, unless specifically stated otherwise, or otherwise understood within the context as used, is generally intended to convey that some embodiments include, while other embodiments do not include, certain features, elements, and/or states. Thus, such conditional language is not generally intended to imply that features, elements, blocks, and/or states are in any way required for one or more embodiments or that one or more embodiments necessarily include logic for deciding, with or without author input or prompting, whether these features, elements and/or states are included or are to be performed in any particular embodiment.
The terms “approximately,” “about,” and “substantially” as used herein represent an amount close to the stated amount that still performs a desired function or achieves a desired result. For example, the terms “approximately”, “about”, and “substantially” may refer to an amount that is within less than 10% of, within less than 5% of, within less than 1% of, within less than 0.1% of, and within less than 0.01% of the stated amount.
Although certain embodiments and examples have been described herein, it will be understood by those skilled in the art that many aspects of the systems shown and described in the present disclosure may be differently combined and/or modified to form still further embodiments or acceptable examples. All such modifications and variations are intended to be included herein within the scope of this disclosure. A wide variety of designs and approaches are possible. No feature, structure, or step disclosed herein is essential or indispensable.
For purposes of this disclosure, certain aspects, advantages, and novel features are described herein. It is to be understood that not necessarily all such advantages may be achieved in accordance with any particular embodiment. Thus, for example, those skilled in the art will recognize that the disclosure may be embodied or carried out in a manner that achieves one advantage or a group of advantages as taught herein without necessarily achieving other advantages as may be taught or suggested herein.
Moreover, while illustrative embodiments have been described herein, the scope of any and all embodiments having equivalent elements, modifications, omissions, combinations (e.g., of aspects across various embodiments), adaptations and/or alterations as would be appreciated by those in the art based on the present disclosure. The limitations in the claims are to be interpreted broadly based on the language employed in the claims and not limited to the examples described in the present specification or during the prosecution of the application, which examples are to be construed as non-exclusive. Further, the actions of the disclosed processes and methods may be modified in any manner, including by reordering actions and/or inserting additional actions and/or deleting actions. It is intended, therefore, that the specification and examples be considered as illustrative only, with a true scope and spirit being indicated by the claims and their full scope of equivalents.
Any and all applications for which a foreign or domestic priority claim is identified in the Application Data Sheet as filed with the present application are hereby incorporated by reference under 37 CFR 1.57. This application claims priority to U.S. Provisional Application No. 63/200,135, filed Feb. 16, 2021, titled “HYDROFOIL,” which is hereby incorporated by reference in its entirety herein.
Number | Date | Country | |
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63200135 | Feb 2021 | US |