Patent Application
20200360781
The present invention relates generally to a sports training device. In particular, it relates to a frame and support structure that tapers torsion coefficient away from the mount.
In many sports, a player needs to accurately throw, kick, hit, or shoot a projectile to a specific location in a goal. To illustrate, in soccer, there are locations in a goal that are very difficult for the goalie to defend, e.g. upper corners of the goal. During practice, players drill to improve their accuracy by aiming at a physical practice target. The target visually focuses their attention to the point of interest. The physical practice targets are removable as they are not used in actual game play. The practice target is transported to the practice site and attached to the goal in one or more positions during a drill. The target may be reattached during the session to practice aiming at different locations in the goal.
A target for sport training device includes a frame and a support structure positioned within the frame. In combination, the support structure and frame have a cross-sectional area such that thickness tapers away from the mount.
The target further includes a sheet bonded to the frame and the support structure. The sheet, the frame, and the support structure may be formed from a unitary substrate, e.g. an elastomer. The sheet covers a portion of the support structure providing some rigidity.
The support structure may be a spoked web, a regular or irregular mesh.
The present invention relates to a sports training device. More specifically, it relates to a portable practice target device that may be attached to an in situ support at a variety of locations to enable an individual to independently practice and improve throwing, kicking, or shooting accuracy of projectiles.
The target device disclosed is not limited to mounting to a sports goal, nor is it limited for use during practice. The practice target can also be mounted to any designated location such as a pole, which may be horizontal, vertical or angled, where a person wishes to mark for aim such as in Frisbee golf or a game of horse. The target has a varying torsion coefficient. The torsion coefficient is high proximate to the mounting arm and decreases as one moves across the target, e.g. further away from the mounting arm. The torsion coefficient is the geometrical physical property of a bar's cross-section which is involved in the relationship between angle of twist and applied torque along the axis of the bar, for a homogeneous linear-elastic bar. The torsion coefficient, together with material properties and length describe the overall stiffness of the target.
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In one embodiment, frame 16, support structure 18, and sheet 20 are formed from a unitary substrate. In another embodiment, the frame 16 and the sheet 20 are formed from a unitary substrate and the support structure 18 is snugly positioned within the frame 16. In another embodiment, the frame 16 and support structure 18 are formed from a unitary substrate and the sheet 20 is attached to the frame and support structure.
The elastomer is defined as a polymer which can reversibly extend 5-700%. The measure of hardness, and resistance to deformation (elastic modulus) for elastic polymer can be quantified by the Shore durometer or durometer reading. The term refers to the measurement as well as the instrument itself. Durometer A and Durometer D are different scales for targeting elastomers for different uses. A larger force is applied during a measurement of Durometer D compared to Durometer A, thus Durometer D scale values indicate more resistant or harder material for the same reading as Durometer A. Within each scale, a larger number indicates harder or more resistant material.
Elastomers with a Durometer A readings of approximately 80A to 120A or a Durometer D reading of 30D to 70D are suitable for the frame and support structure. Some examples of elastomers with durometers within this range include polyurethane, latex (natural or synthetic rubber emulsion), natural rubber, polychloroprene, e.g. Neoprene®, EPDM rubber (ethylene proplylene diene monomer (M-class) rubber), synthetic rubber, and fluoropolymer elastomers such as Viton®, and TPE (thermal plastic elastomers) such as Santoprene®. The elastomer may be a solid film, molded foam or other.
The elastomeric material is best to have reasonable tolerance of environmental hazards such as wind, water, ice, chlorine, salt, sunlight, heat, and cold. It should not crack, crease or fade after reasonable use. For ease of manufacturing, the material is easily colored, molded and cut. It can be stable over temperature such that it does not sag or fold on a hot summer day or become hard and brittle on a cold winter day. Other properties such as tear resistance and toughness are also important. Other components may be integrated in the elastomer material to improve its mechanical properties for use. To illustrate, cloth or fiber matrix, e.g. cotton, polyester, or fiberglass, may be formed within an elastomer material of any of the aforementioned base elastomers for improving tear resistance of the fabricated mounting arm. An elastomeric stiffener may be added for stability and faster return after a projectile hit.
In an alternate embodiment, the sheet incorporates the functionality of the frame and support structure. Material may be removed as needed to adjust the torsion coefficient similar to
Variations of the present invention have been described herein. However, it should be understood that the variations are illustrative examples of the present invention and many possible specific variations can represent applications of the principles of the invention. While certain components are shown and preferred for the attachment, it is foreseeable that functionally equivalent components could be used or subsequently developed to perform the intended functions of the disclosed components.
It is also to be understood that the disclosure is not limited to particular methods or systems, which can, of course, vary. To illustrate, the person skilled in the art will understand that the number of steps or components shown is only indicative and that the method can occur in more or fewer steps and that the system may contain more or less components according to the various embodiments. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting.
Various modifications pertaining to this present invention by one skilled in the art are deemed within the spirit and scope of this invention as defined in the detailed description and claims. Therefore, while the invention has been described in terms of some variations, it is apparent that other forms could be adopted by one skilled in the art, and the scope of the invention is to be limited only by the following claims.
In another variation, the target face and mounting arm are integrated as one continuous piece with the same or different thickness and/or material properties such as durometer. Any portion of the target face and mounting arm may have one or more additional sheets of elastomeric or other material attached to it by gluing, lamination, stitching, or other methods.
