FITNESS APPARATUS

Abstract

A fitness apparatus for adjustable resistance training includes a handle and one or two weight assemblies, configured as a kettlebell, dumbbell, or barbell. Each weight assembly comprises a housing fixedly connected to the handle, a pin movably connected to the housing, and a plurality of stacked weights adapted to fit within the housing. The pin selectively engages one weight, allowing precise weight adjustment. When the handle lifts the housing, the selected weight and all weights above are lifted together. In a kettlebell embodiment, a single weight assembly is attached to the handle. In a dumbbell embodiment, two weight assemblies are fixed to opposite ends of the handle. In a barbell embodiment, the handle comprises two detachably connected rods, each rod with a weight assembly at its free end. This configuration allows users to easily adjust the resistance by selecting different weights through the pin, accommodating various fitness levels.

Description

FIELD

The disclosure herein generally relates to a fitness apparatus.

BACKGROUND

Fitness apparatuses, such as adjustable-weight dumbbells, are widely used for strength training. However, conventional adjustable-weight fitness apparatuses require complex and time-consuming operations to adjust the weight.

BRIEF DESCRIPTION OF THE DRAWINGS

Many aspects of the disclosure can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the disclosure. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.

FIG. 1 is an isometric view of a fitness apparatus as a dumbbell in an embodiment of the present application.

FIG. 2 is an isometric view of a fitness apparatus as a kettlebell in an embodiment of the present application.

FIG. 3 is an isometric view of a fitness apparatus as a barbell in an embodiment of the present application.

FIG. 4 is an isometric view of the fitness apparatus as the kettlebell in FIG. 2 wherein three weights are lifted when in use.

FIG. 5 is an exploded view of the fitness apparatus as the kettlebell in FIG. 2.

FIG. 6 is an exploded view of a housing and multiple weights in FIG. 1, FIG. 2, or FIG. 3.

FIG. 7 is an isometric view of the housing in FIG. 6, viewed from a bottom angle.

FIG. 8 is an exploded view of the fitness apparatus as the dumbbell in FIG. 2.

FIG. 9 is a top isometric view of a weight in FIG. 1, FIG. 2, or FIG. 3.

FIG. 10 is a bottom isometric view of the weight in FIG. 9.

FIG. 11 is an isometric view of a fitness apparatus in an embodiment of the present application.

FIG. 12 is an isometric view of a pin and an elastic piece in an embodiment of the present application.

DETAILED DESCRIPTION

It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different FIG. to indicate corresponding or analogous elements. In addition, numerous specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, it will be understood by those of ordinary skill in the art that the embodiments described herein can be practiced without these specific details. In other instances, baffle structures, procedures, and components have not been described in detail so as not to obscure the related relevant feature being described. Also, the description is not to be considered as limiting the scope of the embodiments described herein. The drawings are not necessarily to scale and the proportions of certain parts have been exaggerated to better illustrate details and features of the present disclosure.

The present disclosure, including the accompanying drawings, is illustrated by way of examples and not by way of limitation. Several definitions that apply throughout this disclosure will now be presented. It should be noted that references to “an” or “one” embodiment in this disclosure are not necessarily to the same embodiment, and such references mean “at least one”.

The term “comprising” means “including, but not necessarily limited to;” it specifically indicates open-ended inclusion or membership in a so-described combination, group, series, and the like.

Without a given definition otherwise, all terms used have the same meaning as commonly understood by those skilled in the art. The terms used herein in the description of the present disclosure are for the purpose of describing specific embodiments only, and are not intended to limit the present disclosure.

As shown in FIG. 1 to FIG. 3, an embodiment of the present application provides a fitness apparatus 100. The fitness apparatus 100 includes a handle 10 and a weight assembly 20. The weight assembly 20 includes a housing 21, a pin 22, and a plurality of weights 23. The housing 21 is fixedly connected to the handle 10. The pin 22 is movably connected to the housing 21. The plurality of weights 23 are arranged in stack and adapted to fit in the housing 21.

As shown in FIG. 4, the pin 22 is used for selectively positioning one single weight 23 to the housing 21. When a user lifts the housing 21 by the handle 10, the selected weight 23 by the pin 22 and all weights 23 above the selected weight 23 are lifted together, but the other weights 23 below the selected weight 23 are left behind, allowing the user to quickly and easily adjust the weight of the fitness equipment.

When the user selects the lowest weight 23 by the pin 22, all weights 23 are engaged with the housing 21, setting the weight assembly 20 to its maximum weight, including the housing 21 and all weights 23. When no weights 23 are selected, all weights 23 remain disengaged from the housing 21, and the weight assembly 20 remains at its minimum weight, consisting of the housing 21 alone.

In some embodiments, as shown in FIG. 5 to FIG. 7, the housing 21 includes a coupling plate 211, and each weight 23 includes a coupling slot 231. When all the weights 23 are stacked in alignment, the coupling slots 231 of all the weights 23 are aligned vertically. The coupling plate 211 is vertically insertable into the coupling slots 231 of all the weights 23 stacked in alignment. The coupling plate 211 includes a plurality of first pin holes 212, and each weight 23 includes a second pin hole 232. When the coupling plate 211 is inserted into the coupling slots 231 of all the weights 23 stacked in alignment, each weight 23's second pin hole 232 is laterally aligned with a corresponding first pin hole 212. The pin 22 is laterally insertable into the second pin hole 232 of the selected weight 23 and the corresponding first pin hole 212 aligned therewith, to position the selected weight 23 to the housing 21. When adjusting the total weight of the fitness apparatus 100, the user needs only vertically reinsert the coupling plate 211 back into the coupling slots 231 of the remaining weights 23 and reposition the pin 22 to select another desired weight 23, enabling rapid and efficient adjustment total weight of the fitness apparatus 100 without handling the weights 23.

In some embodiments, as shown in FIG. 5 to FIG. 7, the housing 21 includes two coupling plates 211, and each weight 23 includes two coupling slots 231. When all the weights 23 are stacked in alignment, the coupling slots 231 on the same side of all the weights 23 are aligned vertically. Each coupling plate 211 is vertically insertable into the corresponding coupling slots 231 of all the weights 23 stacked in alignment. Each coupling plate 211 includes a plurality of first pin holes 212, and each weight 23 includes a second pin hole 232. When the coupling plate 211 is inserted into the corresponding coupling slots 231 of all the weights 23 stacked in alignment, each weight 23's second pin hole 232 is laterally aligned with two corresponding first pin holes 212 of the two coupling plates 211. The pin 22 is laterally insertable into the second pin hole 232 of the selected weight 23 and the corresponding two first pin holes 212 aligned therewith, to position the selected weight 23 to the housing 21. Compared to only one coupling plate 211, two coupling plates 211 can provide two supporting points for the pin 22, improving stability between the pin 22 and the housing 21. In some other embodiments, the number of coupling plates 211 and coupling slots 231 could be three, four, or five and so on.

In some embodiments, the diameter of each first pin hole 212 is less than or equal to the diameter of each second pin hole 232, allowing the pin 22 to pass through the second pin hole 232 and insert into the first pin hole 212 despite potential manufacturing tolerances.

In some embodiments, the edges of each first pin hole 212 and each second pin hole 232 are chamfered, and the end of the pin 22 is chamfered, facilitating insertion of the pin 22 into the first pin holes 212 and the second pin holes 232 and preventing the pin 22 from causing injury to the user.

In some embodiments, the second pin hole 232 of each weight 23 laterally extends through exterior surfaces on both sides of the weight 23, the length of the pin 22 is longer than or equal to the depth of the first pin hole 212 and the second pin hole 232 aligned, so that the pin 22 can laterally extend through the weight 23 selected, making the force on the pin 22 more uniform.

In some embodiments, as shown in FIG. 5 to FIG. 7, the coupling plate 211 further includes a rail groove 213 extended vertically, each weight 23 further includes a protrusion 234 in its coupling slot 231, the protrusion 234 is insertable into the rail groove 213 and slidable along the rail groove 213. When the weights 23 are stacked in alignment, the protrusions 234 of the weights 23 are aligned to form a vertical rail, and when the coupling plate 211 is inserted into the coupling slots 231, the rail is inserted into the rail groove 213, guiding the coupling plate 211 to be vertically inserted into the coupling slots 231, and avoiding lateral misalignment between the first pin hole 212 and the second pin hole 232.

In some embodiments, as shown in FIG. 5 to FIG. 7, the housing 21 further includes a roof 214 and a sidewall 215 perpendicularly connected to each other, and the coupling plate 211 is perpendicularly fixed to the roof 214 and the sidewall 215. When the weights 23 are engaged with the housing 21, the weight 23 on top contacts the roof 214, and all the weights 23 contact the sidewall 215, so the roof 214 and the sidewall 215 restrict the rotation of the selected weight 23 around the pin 22 when the weights 23 are lifted by housing 21.

In some embodiments, as shown in FIG. 5 to FIG. 7, the sidewall 215 extends laterally to form two flanges 216 on both sides, each flange 216 is shaped to conform to the outer profile of each weight 23. When the user inserts the coupling plate 211 into the coupling slot 231 of all the weights 23 stacked in alignment, the user can align the flange 216 with the outer profile of weights 23, to align the coupling plate 211 with the coupling slot 231, because it is difficult for the user to observe if the coupling plate 211 is aligned with the coupling slot 231 from the top, the flange 216 can help the user to judge it.

In some embodiments, as shown in FIG. 5 to FIG. 7, each flange 216 has a marking area 217 on its exterior surface, the marking area 217 displays weight values (not shown in FIGS.), each weight value corresponds to each weight 23 stacked in the housing 21 and indicates a cumulative weight of the corresponding weight 23 and all the weights above. For example, the weight of each weight 23 is 5 kg, the weight value corresponding to the weight 23 on top layer is 5 kg, the weight value corresponding to the weight 23 on second top layer is 10 kg, and the weight value corresponding to the weight 23 on third top layer is 15 kg, and so on.

In some embodiments, as shown in FIG. 9 and FIG. 10, each weight 23 includes a positioning recess 234 and a positioning projection 235 on opposite sides, the positioning projection 235 of one weight 23 is insertable into the positioning recess 234 of an adjacent weight 23 to align each pair of adjacent weights 23 in a stacked arrangement, so that the coupling slots 231 are aligned automatically when the weights 23 are stacked, ensuring that the coupling plate 211 can be inserted into the coupling slots 231 and the first pin hole 131 and the second pin hole 211 are aligned laterally for inserting the pin 14.

In some embodiments, as shown in FIG. 5 and FIG. 6, a first mounting hole 21a and a second mounting hole 21b are formed on an exterior surface of the housing 21, for example, the first mounting hole 21a is on the sidewall 215, and the second mounting hole 21b is on the roof 214. The handle 10 includes a first end 11 and a second end 12, the first end 11 is inserted into the first mounting hole 21a and fixed to the housing 21, the second end 12 is inserted into the second mounting hole 21b and fixed to the housing 21, which makes the fitness apparatus 100 become a kettlebell.

In some embodiments, as shown in FIG. 1 and FIG. 8, the fitness apparatus 100 includes two weight assemblies 20. The handle 10 includes a first end 11 and a second end 12, and the two weight assemblies 20 are respectively fixed to the first end 11 and the second end 12, which makes the fitness apparatus 100 become a dumbbell. Furthermore, for example, each weight assembly 20 has a first mounting hole 21a on its sidewall 215, the first end 11 and the second end 12 are fixed in the corresponding first mounting hole 21a.

In some embodiments, as shown in FIG. 3, the fitness apparatus 100 includes two weight assemblies 20. The handle 10 includes a first rod 13 and a second rod 14 detachably connected, the end of the first rod 13 away from the second rod 14 is defined as a first end 11, and the end of the second rod 14 away from the first rod 13 is defined as a second end 12. The two weight assemblies 20 are respectively fixed to the first end 11 and the second end 12, which makes the fitness apparatus 100 become a barbell. Furthermore, for example, each weight assembly 20 has a first mounting hole 21a on its sidewall 215, the first end 11 and the second end 12 are fixed in the corresponding first mounting hole 21a.

Furthermore, the first rod 13 and the second rod 14 can be fixed by a screw, and the fitness apparatus 100 can save packaging space by dividing the handle 10 into the first rod 13 and the second rod 14.

In some embodiments, as shown in FIG. 1 and FIG. 8, the fitness apparatus 100 further includes a base 30, the base 30 includes a baseplate 31, the baseplate 31 is used for supporting the weight assembly 20 of the kettlebell or supporting the two weight assemblies 20 of the dumbbell or the barbell. Barriers 32 are formed on the baseplate 31, the barriers 32 are used for positioning each weight assembly 20 on the baseplate 31. Furthermore, the barriers 32 are formed on an edge of the baseplate 31.

Furthermore, in some embodiments, the baseplate 31 has projection (not shown in FIGS.) to be inserted into the positioning recess 234 of the lowest weight 23, to position the lowest weight 23 on the baseplate 31.

In some embodiments, as shown in FIG. 11, the fitness apparatus 100 further includes a bracket 40 and two bases 30, the two bases 30 are detachably installed on the bracket 40. Each base 30 can hold a dumbbell or a kettlebell, so the user can exercise the left arm and the right arm at the same time. Furthermore, the bracket 40 also includes a beam 41, which can place towels, water bottles, mobile phones, etc.

In some embodiments, as shown in FIG. 1, FIG. 2, and FIG. 12, the pin 22 is connected to the housing 21 by an elastic piece 24. The roof 214 has a buckle slot 214a, one end of the elastic piece 24 is buckled in the buckle slot 214a, and another end of the elastic piece 24 is fixed to the pin 22, so that the pin 22 stays with the housing 21, thereby preventing the pin 22 from being lost or too far away from the housing 21. For example, the elastic piece 24 is an elastic rope or a spring.

Furthermore, in some embodiments, as shown in FIG. 12, the pin 22 includes a pin rod 221 and a holder 222, the holder 222 is located at an end of the pin rod 221. The pin rod 221 is used for being inserted into the first pin hole 212 and the second pin hole 232. The holder 222 is provided with anti-skid patterns, so that the user can grip the holder 222 to move the pin rod 221.

The embodiments shown and described above are only examples. Even though numerous characteristics and advantages of the present technology have been set forth in the foregoing description, together with details of the structure and function of the present disclosure, the disclosure is illustrative only, and changes may be made in the detail, including in matters of shape, size, and arrangement of the parts within the principles of the present disclosure, up to and including the full extent established by the broad general meaning of the terms used in the claims.

Claims

1. A fitness apparatus comprising:

a handle; and

a weight assembly comprising: a housing fixedly connected to the handle; a pin movably connected to the housing; and a plurality of weights, wherein when the plurality of weights are arranged in stack and accommodated in the housing, the pin is configured for selectively positioning a weight of the plurality of weights to the housing, and when the housing is lifted by the handle, the weight and weights of the plurality of weights above the weight are lifted therewith.

2. The fitness apparatus of claim 1, wherein a first mounting hole and a second mounting hole are formed on an exterior surface of the housing, the handle comprises a first end and a second end, the first end is inserted into the first mounting hole and fixed to the housing, the second end is inserted into the second mounting hole and fixed to the housing.

3. The fitness apparatus of claim 1, wherein the housing comprises a coupling plate, each of the plurality of weights comprises a coupling slot, the coupling plate is insertable into the coupling slots of the plurality of weights arranged in stack, the coupling plate comprises a plurality of first pin holes, each of the plurality of weights comprises a second pin hole, the pin is insertable into the second pin hole of a selected weight of the plurality of weights and a corresponding first pin hole of the plurality of first pin holes that is aligned with the second pin hole to position the selected weight to the housing.

4. The fitness apparatus of claim 3, wherein the coupling plate further comprises a rail groove, each of the plurality of weights further comprises a protrusion in the coupling slot, the protrusion is insertable into the rail groove and slidable along the rail groove.

5. The fitness apparatus of claim 3, wherein the housing further comprises a roof and a sidewall perpendicular to each other, and the coupling plate is perpendicularly fixed to the roof and the sidewall, the sidewall extends laterally to form two flanges, each of the two flanges is shaped to conform to an outer profile of a stack of the plurality of weights.

6. The fitness apparatus of claim 5, wherein each of the two flanges comprises a marking area on an exterior surface of the flange, the marking area displays weight values, each of the weight values corresponds to a weight of the plurality of weights stacked in the housing and indicates a cumulative weight of the weight and weights of the plurality of weights above the weight.

7. The fitness apparatus of claim 1, wherein each of the plurality of weights comprises a positioning recess and a positioning projection on opposite sides of the weight, the positioning projection of one weight of the plurality of weights is insertable into the positioning recess of an adjacent weight of the plurality of weights to align each pair of adjacent weights of the plurality of weights in a stacked arrangement.

8. A fitness apparatus comprising:

a handle comprising a first end and a second end; and

two weight assemblies respectively fixed to the first end and the second end,

wherein each of the two weight assemblies comprises: a housing fixedly connected to the first end or the second end; a pin movably connected to the housing; and a plurality of weights,

when the plurality of weights are arranged in stack and accommodated in the housing, the pin is configured for selectively positioning a weight of the plurality of weights to the housing, and when the housing is lifted by the handle, the weight and weights of the plurality of weights above the weight are lifted therewith.

9. The fitness apparatus of claim 8, wherein the housing comprises a coupling plate, each of the plurality of weights comprises a coupling slot, the coupling plate is insertable into the coupling slots of the plurality of weights arranged in stack, the coupling plate comprises a plurality of first pin holes, each of the plurality of weights comprises a second pin hole, the pin is insertable into the second pin hole of a selected weight of the plurality of weights and a corresponding first pin hole of the plurality of first pin holes that is aligned with the second pin hole to position the selected weight to the housing.

10. The fitness apparatus of claim 9, wherein the coupling plate further comprises a rail groove, each of the plurality of weights further comprises a protrusion in the coupling slot, the protrusion is insertable into the rail groove and slidable along the rail groove.

11. The fitness apparatus of claim 9, wherein the housing further comprises a roof and a sidewall perpendicular to each other, and the coupling plate is perpendicularly fixed to the roof and the sidewall, the sidewall extends laterally to form two flanges, each of the two flanges is shaped to conform to an outer profile of a stack of the plurality of weights.

12. The fitness apparatus of claim 11, wherein each of the two flanges comprises a marking area on an exterior surface of the flange, the marking area displays weight values, each of the weight values corresponds to a weight of the plurality of weights stacked in the housing and indicates a cumulative weight of the weight and weights of the plurality of weights above the weight.

13. The fitness apparatus of claim 11, wherein the sidewall comprises a mounting hole on its exterior surface, the first end or the second end is inserted into the mounting hole and fixed to the housing.

14. The fitness apparatus of claim 8, wherein each of the plurality of weights comprises a positioning recess and a positioning projection on opposite sides of the weight, the positioning projection of one weight of the plurality of weights is insertable into the positioning recess of an adjacent weight of the plurality of weights to align each pair of adjacent weights of the plurality of weights in a stacked arrangement.

15. The fitness apparatus of claim 8 further comprising a base, wherein the base comprises a baseplate, the baseplate is configured for supporting the two weight assemblies, the baseplate forms barriers on the baseplate, the barriers are configured for positioning the two weight assemblies to the baseplate.

16. A fitness apparatus comprising:

a handle comprising a first rod and a second rod detachably connected, wherein an end of the first rod away from the second rod is defined as a first end, an end of the second rod away from the first rod is defined as a second end; and

two weight assemblies respectively fixed to the first end and the second end,

wherein each of the two weight assemblies comprises: a housing fixedly connected to the first end or the second end; a pin movably connected to the housing; and a plurality of weights,

when the plurality of weights are arranged in stack and accommodated in the housing, the pin is configured for selectively positioning a weight of the plurality of weights to the housing, and when the housing is lifted by the handle, the weight and weights of the plurality of weights above the weight are lifted therewith.

17. The fitness apparatus of claim 16, wherein the housing comprises a coupling plate, each of the plurality of weights comprises a coupling slot, the coupling plate is insertable into the coupling slots of the plurality of weights arranged in stack, the coupling plate comprises a plurality of first pin holes, each of the plurality of weights comprises a second pin hole, the pin is insertable into the second pin hole of a selected weight of the plurality of weights and a corresponding first pin hole of the plurality of first pin holes that is aligned with the second pin hole to position the selected weight to the housing.

18. The fitness apparatus of claim 17, wherein the coupling plate further comprises a rail groove, each of the plurality of weights further comprises a protrusion in the coupling slot, the protrusion is insertable into the rail groove and slidable along the rail groove.

19. The fitness apparatus of claim 17, wherein the housing further comprises a roof and a sidewall perpendicular to each other, and the coupling plate is perpendicularly fixed to the roof and the sidewall, the sidewall extends laterally to form two flanges, each of the two flanges is shaped to conform to an outer profile of a stack of the plurality of weights.

20. The fitness apparatus of claim 16, wherein each of the plurality of weights comprises a positioning recess and a positioning projection on opposite sides of the weight, the positioning projection of one weight of the plurality of weights is insertable into the positioning recess of an adjacent weight of the plurality of weights to align each pair of adjacent weights of the plurality of weights in a stacked arrangement.