DANCE BALANCE/TURNING BOARD
A dance balance/turning board is provided, including a base having an upper surface and an opposite lower surface; a turntable bearing having a lower flange mounted to the upper surface, and an upper flange; a rotating platform secured to the upper flange for axial rotation relative to the base; and a hemispheroidal balance surface mountable to the lower surface so that upon the mounting, the rotating platform is disabled from rotating.
This application claims 35 USC 119 priority from U.S. Provisional Application Ser. No. 62/448,274 filed Jan. 19, 2017, which is incorporated by reference herein.
BACKGROUNDThe present invention relates to devices used in relation to the training of dance skills, and more specifically to a turning board constructed and arranged for use in training dance balance and pivoting skills.
Dancers often perform exercises for improving their skills, and for performing routine dance moves more effectively. One such dance move is the pivot or pirouette, performed as the dancer spins about a vertical axis. Maintaining balance during this move is important for transitioning to and from the pirouette.
Conventional training devices are available for enhancing dancer skills by providing a base that is placed on the floor, and having a rotating platform pivoting on the base. The dancer practices pirouetting while standing on the rotating platform. However, the conventional training devices are limited in their utility for training other dance moves and skills.
Thus, there is a need for an improved dance training board which addresses the need of dancers to practice a variety of dance moves.
SUMMARYThe above-listed needs are met or exceeded by the present dance balance/turning board, which features a base with a rotating platform, as well as a bowl-shaped hemispheroidal balance surface selectively mounted below the base. With the balance surface detached from the base, a user places the base upon the floor, and can practice pirouetting or pivoting by spinning on the rotating platform. When balance training is desired, the user attaches the hemispheroidal balance surface to the base in a manner that prevents the rotating platform from rotating.
In the preferred embodiment, the hemispheroidal surface is provided with a locking mechanism including at least one pin that projects through a designated opening in the base, and also engages openings in the rotating platform. The engagement of the at least one pin with the corresponding openings in the platform prevents rotation of the rotating platform relative to the base. In addition, engagement of the at least one pin with the base secures the balance surface to the base.
Thus, with the hemispheroidal balance surface attached to the base of the present board, the user is able to practice exercises that enhance balance skills. The balance surface is placed on the floor, and the user places at least one foot on an upper surface of the base, including but not limited to the rotating platform, which is now locked from rotating.
More specifically, the present invention provides a dance balance/turning board, including a base having an upper surface and an opposite lower surface; a turntable bearing having a lower flange mounted to the upper surface, and an upper flange; a rotating platform secured to the upper flange for axial rotation relative to the base; and a hemispheroidal balance surface mountable to the lower surface and including a locking mechanism engageable with said rotating platform, so that upon the mounting, the rotating platform is disabled from rotating.
Referring now to
A turntable bearing, also known as a Lazy Susan Bearing is generally designated 22 and is provided with a lower flange 24 having a plurality of mounting apertures 26. The lower flange 24 is mounted to the upper surface 14 of the base 12 with conventional fasteners (not shown) such as threaded screws, using the mounting bores 20. However, the use of chemical adhesives in replacement of, or as supplement to, threaded fasteners is contemplated. In one embodiment, the base 12 is provided with a recess 25 (
A rotating platform 32 having a diameter that is smaller than the base 12 is secured to the upper flange 28 using fasteners (not shown) such as threaded screws. In the preferred embodiment, the rotating platform 32 has a diameter of 10 inches, however variations are contemplated depending on the application. In general, the rotating platform 32 has a smaller area or diameter than the base 12. A similar recess 33 (
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The present board 10 also includes a hemispheroidal balance surface 40 which is constructed and arranged to be mountable to the lower surface 16 of the base 12 so that upon mounting, the turntable bearing 22 is disabled from rotating and the rotating platform 32 is fixed relative to the base. Included on the hemispheroidal balance surface 40 is a bowl portion 42 with an outer surface 44 and a peripheral edge 46. A feature of the present balance board 10 is a locking mechanism that prevents the rotating platform 32 from rotating relative to the base 12 when the hemispheroidal balance surface 40 is in place. In the preferred embodiment, the locking mechanism includes the pin bores 18, 34 as well as at least one and preferably a plurality of pins 48 that project from the edge 46 away from the bowl portion 42. In the preferred embodiment, the pins 48 are integrally formed with the bowl portion. However, it is also contemplated that supplemental loose pins 50 are provided (
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The balance surface 40 is attached to the base 12 and to the rotating platform 32 by inserting the pins 48 through the pin bores 18 in the base as well as through the aligned upper pin bores 34 in the rotating platform. In the preferred embodiment, the pins 48, 50 are tapered from a base 52 towards a tip 54, and as the balance surface 40 is pressed towards the lower surface 16, the pins 48 tightly engage the pin bores 18, and 32 to secure the assembly together via a friction fit. As such, upon engagement of the pins 48 with the upper pin bores 32, the rotating platform 32 is prevented from rotating relative to the base 12, and the pins and bores form a locking mechanism as well as securing the balance surface 40 to the base. It will be appreciated that a thickness or diameter of the pins 48, 50 may vary to suit the application and are optionally thickened to accommodate varying tolerances of the other components of the present board 10. It will also be appreciated that other locking mechanisms are contemplated for preventing rotation of the rotating platform 32 upon attachment of the hemispheroidal balance surface 40 to the base 12 and engagement between the surface 40 and the rotating platform.
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Another feature of the present board 10 is that a layer of resilient, high friction surface 56 such as rubber or the like (shown fragmentarily in
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In use, when pirouette training is desired, the user places the base 12, 74 upon the floor, and uses the rotating platform 32 for practicing spinning-related dance exercises or the like. When balance training is desired, the user installs the balance surface 40 by engaging the pins 48 in the respective bores 18, 34. As described above, insertion of the pins 48 in the bores 18, 34 disables the rotatability of the rotating platform 32. This arrangement permits the user to practice balancing exercises using the board 10. Also, the user has the option of preventing rotation of the rotating platform 32 relative to the base 12 without using the balance surface 40, by merely aligning the pin bores 18 and 34 and inserting the supplemental loose pins 50 in the same manner as the pins 48. Alternately, the loose pins 50 are optionally insertable from the rotating platform 32 so as to create a drag on the rotation of the platform relative to the base. In this manner, new users can create a limit of rotation rate of the platform 32 as they learn the respective dance exercises.
While a particular embodiment of the present dance balance/turning board has been described herein, it will be appreciated by those skilled in the art that changes and modifications may be made thereto without departing from the invention in its broader aspects and as set forth in the following claims.
Claims
1. A dance balance/turning board, comprising:
- a base having an upper surface and an opposite lower surface;
- a turntable bearing having a lower flange mounted to said upper surface, and an upper flange;
- a rotating platform secured to said upper flange for axial rotation relative to said base; and
- a hemispheroidal balance surface mountable to said lower surface and including a locking mechanism engageable with said rotating platform so that upon said mounting, said rotating platform is disabled from rotating.
2. The dance balance/turning board of claim 1, wherein said balance surface includes a bowl portion with a peripheral edge, and at least one pin projecting from said edge away from said bowl portion.
3. The dance balance/turning board of claim 2, further including a plurality of said pins integrally formed with said bowl portion.
4. The dance balance/turning board of claim 2, wherein said at least one pin tapers from said balance surface towards a tip of said pin.
5. The dance balance/turning board of claim 2, wherein said locking mechanism includes at least one pin bore in said base and in said rotating platform, wherein said at least one pin engages a corresponding one of said pin bores to secure said balance surface to said base, and for preventing said rotating platform from rotating while said balance surface is engaged on said base.
6. The dance balance/turning board of claim 3, wherein tips of said pins are visible from said rotating platform upon engagement of said balance surface with said base.
7. The dance balance/turning board of claim 1, further including a resilient surface on said rotating platform for enhanced traction.
8. The dance balance/turning board of claim 1, wherein said base has at least one handle.
9. The dance balance/turning board of claim 1, further including at least one supplemental pin configured for disabling rotation of said rotating platform when said balance surface is detached from said base.
10. The dance balance/turning board of claim 1, wherein a radius of curvature of a bottom portion of an outer surface of said balance surface is distinct from a radius of curvature of said outer surface.
11. The dance balance/turning board of claim 10, wherein said radius of curvature of said bottom portion is greater than a radius of curvature of said outer surface.
12. The dance balance/turning board of claim 1, further including at least one resilient foot secured to said lower surface of said base.
13. The dance balance/turning board of claim 1, further including a wireless speaker and associated circuitry.
14. The dance balance/turning board of claim 1, wherein said rotating platform is rotatably mounted in a cavity in said base, and has an upper surface, which is generally flush with an upper surface of said base.
15. The dance balance/turning board of claim 1, further including a level mounted to said base.
Type: Application
Filed: Jan 16, 2018
Publication Date: Jul 19, 2018
Inventor: Alex BLITSTEIN (Napa, CA)
Application Number: 15/872,773