US20090156375A1

US20090156375A1 - Dual-purpose dumbbell

Info

Publication number: US20090156375A1
Application number: US12/001,894
Authority: US
Inventors: Pang-Ching Chiang
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-13
Filing date: 2007-12-13
Publication date: 2009-06-18

Abstract

A dual-purpose dumbbell has a bar, two weights and two adjusting assemblies. The bar has two ends. The two weights are mounted rotatably respectively on the ends of the bar and can be configured longitudinally or transversely relative to the bar. The adjusting assemblies are mounted respectively between the ends of the bar and the weights to allow the weights rotated relative to the bar. When the weights are configured longitudinally, the dual-purpose dumbbell is used as a dumbbell or a weighted baton. When the weights of the dual-purpose dumbbell are configured transversely, the dual-purpose dumbbell can be used as a handle for doing pushups. Since the dual-purpose dumbbell can be used as a dumbbell, a weighted baton and a handle for use when doing pushups, less space is required to store exercise equipment and less cost is incurred to procure the exercise equipment.

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention
The present invention relates to a dual-purpose dumbbell and especially to a dual-purpose dumbbell that can be used in different exercises.
2. Description of the Prior Arts
Most sports appliances have a single use. If a person wants to do different exercises, different sports appliances are required, which cost more money and requires more space for storage.
To overcome the shortcomings, the present invention provides a dual-purpose dumbbell to mitigate or obviate the aforementioned problems.

SUMMARY OF THE INVENTION

The main objective of the present invention is to provide a dual-purpose dumbbell that can be used as a conventional weight or a handle for pushups.
A dual-purpose dumbbell in accordance with the present invention has a bar, two weights and two adjusting assemblies. The bar has two ends. The two weights are mounted rotatably respectively on the ends of the bar and can be configured longitudinally or transversely relative to the bar. The adjusting assemblies are mounted respectively between the ends of the bar and the weights to allow the weights rotated relative to the bar. When the weights are configured longitudinally, the dual-purpose dumbbell is used as a conventional dumbbell or a weighted baton. When the weights of the dual-purpose dumbbell are configured transversely, the dual-purpose dumbbell can be used as a handle for doing pushups. Since the dual-purpose dumbbell can be used as a conventional dumbbell, a weighted baton and a handle for use when doing pushups, less space is required to store exercise equipment and less cost is incurred to procure the exercise equipment.
Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective of a dual-purpose dumbbell in accordance with the present invention;

FIG. 2 is an exploded perspective view of the dual-purpose dumbbell in FIG. 1;

FIG. 3 is a side view in partial section of the dual-purpose dumbbell in FIG. 1;

FIG. 4 is an operational side view in partial section of the dual-purpose dumbbell in FIG. 1 with one weight adjusted transversely to the bar;

FIG. 5 is operational side view in partial section of a dual-purpose dumbbell in FIG. 1 converted to a handle for use during pushups;

FIG. 6 is another perspective view of the sport appliance of dual purpose in FIG. 1; and

FIG. 7 is an operational perspective of the dual-purpose dumbbell in FIG. 1 used during pushups.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

With reference to FIG. 1, the dual-purpose dumbbell in accordance with the present invention is selectively used as a weight and a handle used when performing pushups and comprises a bar (10), two weights (20), two adjusting assemblies and an optional grip (30).
With further reference to FIG. 2, the bar (10) has two ends (11) and may have an outer surface (12) and two through holes (13).
With further reference to FIG. 3, each end (11) may have an inclined surface. Each inclined surface has a center and a locking recess (111). The locking recess (111) is non-circular, is geometric with a 90° increment and is formed at the center of the end (11).
The outer surface (12) may be cylindrical.
The through holes (13) are formed perpendicularly respectively through the centers of the inclined surfaces of the ends (11) and communicate with the outer surface (12) of the bar (10). Each through hole (13) has a countersink (131). The countersink (131) communicates with the outer surface (12) of the bar (10).
The weights (20) are connected adjustably respectively to the ends (11) of the bar (10). Each weight (20) may have a proximal end (21), a distal end (22), a locking protrusion (23), a fastening hole (24) and a foot (27).
The proximal end (21) is inclined, corresponds to the inclined surface of the end (11) of the bar (10) and has a center.
The distal end (22) has an optional recess.
With further reference to FIGS. 4 and 5, the locking protrusion (23) is formed concentrically on and protrudes from the proximal end (21) and corresponds to and selectively engages the locking recess (111) to hold the weight (20) in a longitudinal or transverse position relative to the bar (10).
The fastening hole (24) is formed concentrically in the locking protrusion and may be threaded.
With further reference to FIGS. 6 and 7, the foot (27) is a pliable, non-skid pad, is attached to the distal end (22) of the weight (20), keeps the dual-purpose dumbbell from slipping when being used as a handle to perform pushups and is mounted in the recess in the distal end (22) of the weight (20).
The adjusting assemblies are mounted respectively between the ends of the bar (10) and the weights (20) to allow the weights (20) being adjusted relative to the bar (10). Each adjusting assembly may have a fastener (25) and a biasing element (26).
The fastener (25) is mounted through the corresponding through hole (13) in the bar (10), connects to the fastening hole (24) in the corresponding weight (20), has an enlarged head and may be a bolt.
The biasing element (26) is mounted around the fastener (25) between the bar (10) and the enlarged head of the fastener (25), pulls the proximal end (21) of the corresponding weight (20) against the inclined surface of the corresponding end (11) of the bar (10) and may be a spring.
The grip (30) is a pliable sheath, is mounted around the bar (10) and has a non-skid outer surface.
The dual-purpose dumbbell as described can be used as a dumbbell, a weighted baton and a handle for use when doing pushups. Consequently, less space is required to store exercise equipment and less cost is incurred to procure the exercise equipment.
Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and features of the invention, the disclosure is illustrative only. Changes may be made in the details, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.

Claims

1. A dual-purpose dumbbell comprising:

a bar having two ends;

two weights being connected adjustably respectively to the ends of the bar; and

two adjusting assemblies being mounted respectively between the ends of the bar and the weights to allow the weights being adjusted relative to the bar.

2. The dual-purpose dumbbell as claimed in claim 1, wherein

each end of the bar has an inclined surface having

a center; and

a locking recess being non-circular, being geometric with a 90° increment and being formed at the center of the end;

the bar further has

an outer surface; and

two through holes being formed perpendicularly respectively through the centers of the inclined surfaces of the ends and communicating with the outer surface of the bar, each through hole having a countersink communicating with the outer surface;

each weight further has

a proximal end being inclined, corresponding to the inclined surface of a corresponding end of the bar and having a center;

a distal end;

a locking protrusion being formed concentrically on and protruding from the proximal end and corresponding to and selectively engaging the locking recess of a corresponding end of the bar;

a fastening hole being formed concentrically in the locking protrusion; and

a foot being a pliable, non-skid pad and being attached to the distal end of the weight; and

each adjusting assembly has

a fastener being mounted through one of the through holes in the bar, connecting to the fastening hole in a corresponding weight and having an enlarged head; and

a biasing element being mounted around the fastener between the bar and the enlarged head of the fastener and pulling the proximal end of the corresponding weight against the inclined surface of a corresponding end of the bar.

3. The dual-purpose dumbbell as claimed in claim 2, wherein the outer surface of the bar is cylindrical.

4. The dual-purpose dumbbell as claimed in claim 2, wherein

the distal end of each weight has a recess; and

the foot is mounted in the recess.

5. The dual-purpose dumbbell as claimed in claim 3, wherein

the distal end of each weight has a recess; and

the foot is mounted in the recess.

6. The dual-purpose dumbbell as claimed in claim 2, wherein the fastening holes of the weights are threaded.

7. The dual-purpose dumbbell as claimed in claim 5, wherein the fastening holes of the weights are threaded.

8. The dual-purpose dumbbell as claimed in claim 2, wherein the fasteners are bolts.

9. The dual-purpose dumbbell as claimed in claim 7, wherein the fasteners are bolts.

10. The dual-purpose dumbbell as claimed in claim 2, wherein the biasing elements are springs.

11. The dual-purpose dumbbell as claimed in claim 9, wherein the biasing elements are springs.

12. The dual-purpose dumbbell as claimed in claim 1 further comprising a grip being a pliable sheath, being mounted around the bar and having a non-skid outer surface.

13. The dual-purpose dumbbell as claimed in claim 11 further comprising a grip being a pliable sheath, being mounted around the bar and having a non-skid outer surface.