PUSH UP APPARATUS AND METHODS

Abstract

One or more aspects comprise an apparatus comprising: (a) a base component comprising a flat lower surface and a concave upper surface having a first curvature; and (b) a handle component comprising a convex lower surface having a second curvature; wherein the first curvature and the second curvature conform sufficiently to allow the handle component to rotate three-dimensionally within the base component, and wherein at least one of the concave upper surface and the convex lower surface comprises means to allow the handle component to rotate three-dimensionally within the base component. Other aspects and embodiments, including methods of use and manufacture, will be apparent to those skilled in the art after reviewing the description and drawings provided herein.

Claims

1. An apparatus comprising: a base component comprising a flat lower surface and a concave upper surface having a first curvature; and a handle component comprising a convex lower surface having a second curvature; wherein said first curvature and said second curvature conform sufficiently to allow said handle component to rotate three-dimensionally within said base component, and wherein at least one of said concave upper surface and said convex lower surface comprises means to allow said handle component to rotate three-dimensionally within said base component.

2. An apparatus as in claim 1, wherein said handle component has a concave upper surface.

3. An apparatus as in claim 2, wherein said handle component comprises a handle that extends between opposite sides of said concave upper surface.

4. An apparatus as in claim 1, wherein at least one of said concave upper surface and said convex lower surface comprises a plurality of conveyor ball transfer assemblies.

5. An apparatus as in claim 1, wherein at least one of said concave upper surface and said convex lower surface comprises a non-stick coating.

6. An apparatus as in claim 1, wherein at least one of said concave upper surface and said convex lower surface comprises one or more hook-and-loop fasteners.

7. An apparatus as in claim 4, wherein each of said conveyor ball transfer assemblies comprises a single ball having a first diameter, which rides on a plurality of balls having a second diameter.

8. An apparatus as in claim 7, wherein said single ball is a nylon ball.

9. An apparatus as in claim 7, wherein said plurality of balls are steel balls.

10. An apparatus as in claim 1, wherein said flat lower surface of said base component comprises a non-skid layer.

11. An apparatus as in claim 3, wherein said handle is enclosed within a foam grip.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0008] FIG. 1 depicts an exemplary embodiment.

[0009] FIGS. 2-6 depict additional exemplary embodiments.

[0010] FIGS. 7-14 depict bases that may be used in exemplary embodiments.

[0011] FIGS. 15-19 depict handle components that may be used in exemplary embodiments.

[0012] FIG. 20 depicts an additional exemplary embodiment.

[0013] FIG. 21 depicts an exploded view of exemplary components.

[0014] FIGS. 22-24 depict exemplary usage.

[0015] FIG. 25 depicts an exemplary embodiment.

[0016] FIG. 26 depicts a detailed view of an exemplary conveyor ball transfer assembly.

[0017] FIG. 27 depicts an exemplary grip.

[0018] FIG. 28 depicts an exemplary grip structure.

[0019] FIGS. 29 and 30 depict an exemplary base top.

[0020] FIG. 31 depicts an exemplary base bottom.

[0021] FIG. 32 depicts an exemplary embodiment.

[0022] FIGS. 33-37 depict additional exemplary embodiments.

[0023] FIGS. 38-43 depict bases that may be used in exemplary embodiments.

[0024] FIGS. 44-48 depict handle components that may be used in exemplary embodiments.

DESCRIPTION OF SELECT EXEMPLARY EMBODIMENTS

[0025] FIG. 1 depicts an exemplary embodiment of a push up apparatus 100. In this embodiment, the apparatus 100 comprises two separate components: a base 120 and a handle component 130, comprising a hemispherical shell component connected to a handle 140.

[0026] Those skilled in the art will understand that the term hemispherical is used loosely in this context, and that the shape of the shell only needs to be sufficiently rounded. For example, instead of a portion of a sphere, the shell component's shape may be a portion of an ellipsoid, spheroid, catenoid, paraboloid, or other rounded shape.

[0027] Various methods of use and benefits over push up bars that rotate only in a plane are depicted in FIGS. 22-24. As shown in FIG. 22, a user of an exemplary embodiment is able to keep his (right-hand) wrist straight, while a handle that rotates only in a plane forces the (left-hand) wrist to bend to the side. See also FIGS. 23 and 24.

[0028] The base 120 of an exemplary embodiment may be reversible, in the sense that either side of the base 120 may be used to support handle component 130. One side of the base may have less friction, allowing the handle to move more freely, and the other side may have more friction, to reduce movement of the handle.

[0029] As shown in FIG. 1, protrusions may be used to vary the frictional resistance between the base and the shell portion. The protrusions shown in FIG. 1 are pill-shaped (20 mm long, 4 mm wide), although those skilled in the art will understand that other shapes and dimensions could be used. See also FIGS. 10-12. Exemplary protrusions for the opposite side of the base are shown in FIGS. 7-9. These round dimples may be, for example, 6.5 mm in diameter.

[0030] Other exemplary embodiments may use other means of increasing or reducing friction between the base and the shell component. For example, means to allow the shell portion of the handle component to rotate within the base component may comprise ball bearings, non-stick coatings, or other friction-reducing means known to those skilled in the art. Also, hook-and-loop fasteners, or other means of immobilization, may be used by users who wish to immobilize the handle component 130 at a particular angle.

[0031] An exemplary material for the base and shell components (including a core for handle 140) is glass-filled (i.e., glass-reinforced) polycarbonate. Exemplary brands of glass-filled polycarbonate include Lexan 3412, Lexan 3413, Lexan 3414, Lexan 500, Susta PC GF20, Tecanat GF20, Unicar RG, although those skilled in the art will understand that any suitable material may be used.

[0032] Handle 140 may have a thermo-plastic elastomer coating, or other suitable non-slip material. An exploded view of exemplary components is depicted in FIG. 21. The base may further comprise a rubber gasket or other suitable non-slip mechanism for preventing the base from slipping on a floor surface.

[0033] Exemplary dimensions for base 120 (see FIG. 1) are: diameter 125 mm, height 42 mm. Exemplary dimensions for handle component 130 are: diameter 140 mm, height 90 mm. Those skilled in the art will understand that these dimensions are entirely exemplary, and that other dimensions may be used. For example, an exemplary embodiment (depicted in FIGS. 20-24) uses a base 120 of diameter 222 mm and height 80 mm, with a handle component 130 of diameter 160 mm and height 100 mm.

[0034] Other embodiments are depicted in FIGS. 25-31.

[0035] In an exemplary embodiment, the hand held (handle component) portion rides on three nylon transfer ball bearings snapped into the bowl base, each comprising one nylon ball that rides on several steel balls. The handle (grip structure) may comprise one plastic piece that is dropped into the top structure and is secured with metal fasteners. The handle may be covered with a foam sleeve (grip). The handle does not rotate, but rather the top assembly (including the bowl) is free to rotate within the base, and may be stopped by a flange running along the edge of the bowl. The base may have a rubber stopping bottom to prevent skidding.

[0036] FIG. 25 depicts an example of the above-described embodiments. The base (1) and the bowl (2) may be constructed of polished polypropylene. The screws (3) may be constructed of zinc-plated steel. The grip structure (4) may be constructed of polypropylene, and the grip (5) may be constructed of ethylene-vinyl acetate. The conveyor ball transfer assemblies (6) may have housings constructed of nylon.

[0037] In one or more exemplary embodiments, conveyor ball transfer assemblies comprise a nylon ball trapped in a nylon housing, riding on a plurality of smaller steel balls. Those skilled in the art will recognize that various conveyor ball transfer assemblies may be used without departing from the scope of the subject embodiments.

[0038] One example of a suitable conveyor ball transfer assembly is shown in FIG. 26, and obtainable (Model No. NL-8) from Euro-Bearings, Ltd, of Milton Keynes, UK. Suitable conveyor ball transfer assemblies also are available from other well-known sources (for example, McMaster-Carr, of Robinsville, N.J.).

[0039] In an exemplary embodiment, the conveyor ball transfer assembly is 10.5 mm high, the ball diameter is 8 mm, and the housing is nylon.

[0040] FIG. 27 depicts an exemplary grip.

[0041] FIG. 28 depicts an exemplary grip structure.

[0042] FIGS. 29 and 30 depict an exemplary base top.

[0043] FIG. 31 depicts an exemplary base bottom.

[0044] FIG. 32 depicts an exemplary embodiment.

[0045] FIGS. 33-37 depict additional exemplary embodiments.

[0046] FIGS. 38-43 depict bases that may be used in exemplary embodiments.

[0047] FIGS. 44-48 depict handle components that may be used in exemplary embodiments.

[0048] Those skilled in the art will understand that the above-specified materials are exemplary only, and that other suitable materials may be used without departing from the scope of the invention.

[0049] While certain exemplary aspects and embodiments have been described herein, many alternatives, modifications, and variations will be apparent to those skilled in the art. Accordingly, exemplary aspects and embodiments set forth herein are intended to be illustrative, not limiting. Various modifications may be made without departing from the spirit and scope of the disclosure.