Adjustable weightlifting device

Abstract

A selectable clamp for interchanging weightlifting handlebars in an adjustable weight set includes a first clamp plate set, a second clamp plate set, and a latch. The first clamp plate set and the second clamp plate set are pivotally moveable relative to one another and define an expandable opening therebetween. The clamp plate sets engage the weightlifting handlebar in the expandable opening when the selectable clamp is in a closed position and disengage with the weightlifting handlebar when the selectable clamp is in an open position. The latch is releasably coupled to the first clamp plate set and the second clamp plate set and secures the weightlifting handlebar when the clamp is in a closed position and release the weightlifting handlebar when the clamp is in an open position.

Description

BACKGROUND

[0001] The present disclosure relates generally to an adjustable weightlifting device, as well as methods of using such adjustable weightlifting device.

[0002] Clamps for weightlifting handlebars are commonly used to secure weights, such as metal or plastic weight plates, to a handlebar. The desired amount of weight is placed onto each end of the handlebar. A clamp is then slid onto each end of the handlebar. Once each of the handlebar clamps is placed against the weight plates, both clamps are secured, or fixed, in place. The clamps prevent the weight plates from sliding off the handlebar while the user is completing various exercises.

[0003] Adjustable weight apparatuses are used for various strength exercises. Adjustable weight apparatuses allow the user to have a variety of weight options for the use with a single weightlifting device, such as a dumbbell handlebar or a kettlebell. Adjustable weight apparatuses also save space. The user can have a variety of weight options, such as dumbbell weight options or kettlebell options, without needing space to store a plurality of full dumbbells and kettlebells. However, current adjustable weight apparatuses comprise complicated systems to engage and release weight plates and are only usable with a singular type of handlebar. Therefore, the current adjustable weight apparatuses comprise components that are subject to repeated wear and tear and the user is limited to exercises involving the single handlebar type that is compatible with the adjustable weight apparatus.

[0004] It would be advantageous to provide an adjustable weightlifting system that engages adjacent weight plates (e.g., inwardly adjacent, outwardly adjacent, etc.) and is compatible with a variety of handlebars.SUMMARY

[0005] One embodiment of the present disclosure relates to a method of adjusting a weightlifting device. The method includes inserting a first releasable locking pin into a first weight plate on a first side of a handlebar to lock the first weight plate to the handlebar, inserting a second releasable locking pin into a second weight plate on a second side of the handlebar to lock the second weight plate to the handlebar, lifting the handlebar to lift the locked first weight plate and the locked second weight plate, and engaging inwardly adjacent weight plates progressively from each of the locked first and second weight plates toward a central handgrip on the handlebar or a second direction away from the central handgrip on the handlebar.

[0006] Another embodiment relates to an adjustable weightlifting device. The adjustable weightlifting device includes a handlebar with a weight-support portion and a handgrip portion, and a plurality of weight plates disposed on the weight-support portion. The adjustable weightlifting device also includes a locking pin releasably engaged with one of the weight plates and the weight-support portion to lock the one of the weight plates to the handlebar, and one or more projections on each of the plurality of weight plates to successively engage each of any others of the plurality of weight plates disposed between the locked one of the weight plates and handgrip portion or between the locked one of the weight plates and an end of the handlebar opposite the handgrip portion.

[0007] Another embodiment relates to an adjustable weightlifting device. The adjustable weightlifting device includes a bar having a handgrip portion, a first weight-support portion, and a second weight-support portion. Each weight-support portion has a plurality of openings. The weightlifting device also includes a plurality of weight plates disposed on each of the first and second weight-support portions, and each weight plate has a passage aligned with one of the openings. The weightlifting device further includes a first locking pin releasably engageable with a first selected weight plate and the first weight-support portion, and a second locking pin releasably engageable with a second selected weight plate and the second weight-support portion. The weightlifting device also includes one or more projections on each of the weight plates. The projections are configured to engage with other adjacent weight plates coupling the adjacent weight plates to the bar.

[0008] Another embodiment relates to an adjustable weightlifting device. The adjustable weightlifting device includes a bar having a handgrip portion, a first weight-support portion, and a second weight-support portion. Each weight-support portion has a plurality of openings. The adjustable weightlifting device also includes a plurality of weight plates disposed on each of the first and second weight-support portions. Each weight plate has a passage aligned with one of the openings. The adjustable weightlifting device also includes a first locking pin releasably engageable with a first selected weight plate and the first weight-support portion. The adjustable weightlifting device includes a second locking pin releasably engageable with a second selected weight plate and the second weight-support portion. The adjustable weightlifting device also includes one or more projections on each of the weight plates. The projections are configured to engage with other adjacent weight plates coupling the adjacent weight plates to the bar.

[0009] Yet another embodiment relates to an adjustable weightlifting device. The adjustable weightlifting device includes a handle including a handgrip portion. The adjustable weightlifting device includes a weight-support portion coupled to the handle. The adjustable weightlifting device includes a plurality of weight plates disposed on the weight-support portion. The adjustable weightlifting device also includes a locking pin releasably engaged with one of the weight plates and the weight-support portion to lock the one of the weight plates to the handlebar.

[0010] Yet another embodiment relates to a method of adjusting an adjustable weightlifting device. The method includes inserting a releasable locking pin into a first weight plate coupling the first weight plate to the weightlifting device, lifting the weightlifting device to lift the locked first weight plate, and engaging other adjacent weight plates progressively from the locked first weight plates toward a handle of the weightlifting device.BRIEF DESCRIPTION OF THE DRAWINGS

[0011] FIG. 1 is a perspective view of an adjustable weightlifting device according to one embodiment;

[0012] FIG. 2 is a front view of the adjustable weightlifting device according to the embodiment of FIG. 1;

[0013] FIG. 3 is a front view of a handlebar of the adjustable weightlifting device according to the embodiment of FIG. 1;

[0014] FIG. 4 is a side perspective view of the handlebar according to the embodiment of FIG. 3;

[0015] FIG. 5 is another front view of the handlebar according to the embodiment of FIG. 3;

[0016] FIG. 6 is a side view of one of a plurality of weight plates of the adjustable weightlifting device according to the embodiment of FIG. 1;

[0017] FIG. 7 is a side perspective view of the weight plate according to the embodiment of FIG. 6;

[0018] FIG. 8 is another side perspective view of the weight plate according to the embodiment of FIG. 6;

[0019] FIG. 9 is a side view of another one of a plurality of weight plates of the adjustable weightlifting device according to the embodiment of FIG. 1;

[0020] FIG. 10 is a side perspective view of the weight plate according to the embodiment of FIG. 9;

[0021] FIG. 11 is side view of a plurality of weight plates according to the embodiments of FIG. 6 and FIG. 9;

[0022] FIG. 12 is a side view of a locking pin for the adjustable weightlifting device of FIG. 1 according to one embodiment;

[0023] FIG. 13 is a side view of the adjustable weightlifting device according to the embodiment of FIG. 1;

[0024] FIG. 14 is a perspective view of a selecting a weight for the adjustable weightlifting device according to one embodiment;

[0025] FIG. 15 is a perspective view of engaging a plurality of weight plates of the adjustable weightlifting device according to the embodiment of FIG. 14;

[0026] FIG. 16 is a side perspective view of an adjustable weightlifting system including a storage rack according to one embodiment;

[0027] FIG. 17 is an expanded side perspective view of the adjustable weightlifting system including the storage rack according to the embodiment of FIG. 16;

[0028] FIG. 18 is a top perspective view of a portion of the storage rack according to the embodiment of FIG. 16;

[0029] FIG. 19 is a top perspective view of a portion of an adjustable weightlifting system according to another embodiment;

[0030] FIG. 20 is a front perspective view of an adjustable weightlifting device according to another embodiment;

[0031] FIG. 21 is another front perspective view of the adjustable weightlifting device according to the embodiment of FIG. 20;

[0032] FIG. 22 is another front perspective view of a portion of the adjustable weightlifting device according to the embodiment of FIG. 20;

[0033] FIG. 23 is a side view of the adjustable weightlifting device according to the embodiment of FIG. 20;

[0034] FIG. 24 is a bottom view of the adjustable weightlifting device according to the embodiment of FIG. 20;

[0035] FIG. 25 is a bottom perspective view of a portion of the adjustable weightlifting device according to the embodiment of FIG. 20;

[0036] FIG. 26 is a top view of a weight plate of the adjustable weightlifting device according to the embodiment of FIG. 20;

[0037] FIG. 27 is a side view of the weight plate of the adjustable weightlifting device according to the embodiment of FIG. 26;

[0038] FIG. 28 is an expanded view of an adjustable weightlifting device according to another embodiment

[0039] FIG. 29 is an expanded view of the adjustable weightlifting device according to the embodiment of FIG. 28; and

[0040] FIG. 30 is an expanded view of a portion of the adjustable weightlifting device according to the embodiment of FIG. 28;

[0041] FIG. 31 is a perspective view of an adjustable weightlifting device according to another embodiment;

[0042] FIG. 32 is a front view of an adjustable weightlifting device according to the embodiment of FIG. 31;

[0043] FIG. 33 is a front view of a portion of the adjustable weightlifting device according to the embodiment of FIG. 31;

[0044] FIG. 34 is a perspective view of a portion of the adjustable weightlifting device according to the embodiment of FIG. 31;

[0045] FIG. 35 is a front view of a handle of the adjustable weightlifting device according to the embodiment of FIG. 31;

[0046] FIG. 36 is a perspective view of the handle of the adjustable weightlifting device according to the embodiment of FIG. 35;

[0047] FIG. 37 is a perspective view of a base of the adjustable weightlifting device according to the embodiment of FIG. 31;

[0048] FIG. 38 is a front view of a portion of the base of the adjustable weightlifting device according to the embodiment of FIG. 37;

[0049] FIG. 39 is a perspective view of a portion of the base of the adjustable weightlifting device according to the embodiment of FIG. 37;

[0050] FIG. 40 is a perspective view of a weight plate of the adjustable weightlifting device according to the embodiment of FIG. 31;

[0051] FIG. 41 is a front view of an adjustable weightlifting device according to another exemplary embodiment;

[0052] FIG. 42 is a front view of a portion of the adjustable weightlifting device according to the embodiment of FIG. 41;

[0053] FIG. 43 is a perspective view of a perspective view of the portion of the adjustable weightlifting device according to the embodiment of FIG. 42;

[0054] FIG. 44 is a perspective view of a portion of the adjustable weightlifting device including a weight housing and support portion according to the embodiment of FIG. 41;

[0055] FIG. 45 is a perspective view of a locking pin of the adjustable weightlifting device according to the embodiment of FIG. 41;

[0056] FIG. 46 is a perspective view of an adjustable weightlifting system including an adjustable weightlifting device and tray according to another exemplary embodiment;

[0057] FIG. 47 is a front view of the adjustable weightlifting system including the adjustable weightlifting device and the tray according to the embodiment of FIG. 46;

[0058] FIG. 48 is a perspective view of the adjustable weightlifting system including the adjustable weightlifting device and the tray according to the embodiment of FIG. 46;

[0059] FIG. 49 is a rear perspective view of a weight plate of the adjustable weightlifting device according to the embodiment of FIG. 46;

[0060] FIG. 50 is a front perspective view of a weight plate of the adjustable weightlifting device according to the embodiment of FIG. 46;

[0061] FIG. 51 is a side view of a plurality of weight plates of the adjustable weightlifting device according to the embodiment of FIG. 46;

[0062] FIG. 52 is a rear view of an end plate and weight plate of the adjustable weightlifting device according to the embodiment of FIG. 46; and

[0063] FIG. 53 is a perspective view of an adjustable weightlifting system including a first adjustable weightlifting device, a second adjustable weightlifting device, and a tray according to another exemplary embodiment.DETAILED DESCRIPTION

[0064] A selectable clamp for a weightlifting handlebar provides a hassle-free solution for using an adjustable weight apparatus with a plurality of different handlebars.

[0065] Referring generally to the FIGURES, disclosed herein is an adjustable weightlifting system 100 for weightlifting that generally includes an adjustable weightlifting device 102 that includes a handlebar 104, a plurality of weight plates 106, and a locking pin 108. The adjustable weightlifting device 102 facilitates the use of varying amounts of weight with the same device. A user can select an amount of weight by inserting the locking pin 108 into one of a plurality of passages 110 (e.g., cavities, etc.) defined by one of the plurality of weight plates 106 coupling, or locking, the selected weight plate 106 to the handlebar 104. Once the locking pin 108 is secured to one of the plurality of weight plates 106, the user can then lift the adjustable weightlifting device 102 and in doing so, the selected weight plate 106 engages with adjacent weight plates 106 (e.g., inwardly adjacent weight plates, outwardly adjacent weight plates, etc.) coupling the adjacent weight plates 106 to the weightlifting device 102 as well. For example, the selected one of the plurality of weight plates 106 engages the weight plate 106 adjacent to the selected one of the plurality of weight plates 106 on a side closest to the handlebar 104. When a user desires to change amount of weight for performing an exercise with the weightlifting device 102, the weightlifting device 102 is set on a surface, or back in a tray, and the locking pin 108 is removed from a first wight plate of the plurality of weight plates 106 to a second weight plate of the plurality of weight plates 106.

[0066] Referring more particularly to FIGS. 1-2, is an exemplary embodiment of the adjustable weightlifting system 100. As shown in FIG. 1, the adjustable weightlifting system 100 includes the weightlifting device 102. According to this embodiment, the weightlifting device 102 is a dumbbell. In other embodiment, the weightlifting device 102 may be a barbell device, a curl bar device, a kettlebell or any other weightlifting device.

[0067] The weightlifting device 102 includes the handlebar 104. According to this embodiment, the handlebar 104 is a straight grip handlebar. The handlebar 104 is configured to be gripped by the user with at least one hand. The handlebar 104 may include at least a portion (e.g., 2 inches, 4 inches, etc.) of texturization (e.g., knurling, etc.). In other embodiments, the portion of texturization may be a separate component coupled to the handlebar 104. The portion of texturization is configured to aid the user in gripping the handlebar 104.

[0068] The weightlifting device 102 also includes the plurality of weight plates 106. The adjustable weightlifting system 100 may include any number of weight plates 106. Each of the plurality of weight plates 106 is a predefined amount of weight. For example, each of the plurality of weight plates 106 may be 5 pounds. In other embodiments, each of the weight plates 106 may be a different weight (e.g., 2 pounds, 10 pounds, etc.)

[0069] The weightlifting device 102 also includes at least one locking pin 108 (e.g., a releasable locking pin, etc.). As shown in FIGS. 1-3, the adjustable weightlifting system 100 includes two locking pins (e.g., a first locking pin 108 and a second locking pin 108, etc.). The locking pin 108 is selectively inserted into one of the plurality of weight plates 106 and releasably couples at least one weight plate 106 to the weightlifting device 102.

[0070] Each of the plurality of weight plates 106 defines a passage 110 described in further detail below. The passages 110 are configured to receive the locking pin 108 releasably coupling a desired amount of weight to the handlebar 104.

[0071] The plurality of weight plates 106 are positioned (e.g., disposed, etc.) on each end of the handlebar 104 (e.g., a first set 112 of the plurality of weight plates 106 on a first side 114, and a second set of the plurality of weight plates 106 on a second side 118, etc.). Each of the plurality of weight plates 106 comprises a defined amount of weight (e.g., 2 pounds, 5 pounds, 10 pounds, etc.). The plurality of weight plates 106 are configured to be selectively coupled to the handlebar 104 of the weightlifting device 102, as described in more detail below. As shown in FIG. 1, the plurality of weight plates 106 are configured to be stacked vertically adjacent to each other and coupled to the weightlifting device 102 for performing weighted exercises with the weightlifting device 102. According to this embodiment, the first set 112 of weight plates 106 is positioned on the first side 114 of the weightlifting device 102 and the second set 116 of the plurality of weight plates 106 is positioned on the second side 118 of the weightlifting device 102.

[0072] As shown in FIG. 1, the handlebar 104 also includes a first separation plate 120 positioned on the first side 114 and a second separation plate 122 positioned on the second side 118 of the adjustable weightlifting system 100. Each of the first separation plate 120 and the second separation plate 122 are positioned adjacent to the inner most weight plate 106 of each of the first set 112 and the second set 116 of the plurality of weight plate 106. The first separation plate 120 and the second separation plate 122 are define the first side 114 and the second side 118 of the adjustable weightlifting system 100. For example, extending outward from the first separation plate 120 (e.g., away from a center of the adjustable weightlifting system 100, etc.) defines the first side 114, and extending outward from the second separation plate 122 (e.g., away from a center of the adjustable weightlifting system 100, etc.) defines the second side 118.

[0073] As shown in FIGS. 1 and 2, the adjustable weightlifting system 100 also includes a tray 124 (e.g., a storage tray, etc.). The tray 124 is configured to store the weightlifting device 102 when not in use. For example, the tray 124 is configured to keep the weightlifting device 102 in an upright position or a stationary position when not being used. Further, when the weightlifting device 102 is in use (e.g., a user has lifted the weightlifting device 102 out of the tray 124, etc.), the tray 124 is configured store the plurality of plates not engaged with the weightlifting device 102 (e.g., weight plates 106 positioned outwardly from the selected weight plate 106, etc.). For example, the tray 124 is configured to hold weight plates that are not engaged with the weightlifting device 102 in an upright (e.g., vertical position, etc.). By holding the weight plates that are not engaged with the weightlifting device 102 in an upright position, the weightlifting device 102 can be easily repositioned with the tray 124 for adjusting the amount of weight engaged with the handlebar 104 of the weightlifting device 102.

[0074] Now referring to FIG. 2, is a front view of the adjustable weightlifting system 100. As shown in FIG. 2, all of the plurality of weight plates 106 (e.g., both the first set 112 and the second set 116 of the plurality of weight plates 106, etc.) are engaged (e.g., coupled, etc.) with the handlebar 104 of the weightlifting device 102, and the weightlifting device 102 is lifted (e.g., positioned a distance above or away from, etc.) the tray 124.

[0075] The plurality of weight plates 106 are positioned at an angle relative to the handlebar 104. For example, the plurality of weight plates 106 are positioned (e.g., angled, etc.) outward at an angle a in a range between three to five degrees relative to an axis A1 that is perpendicular to a center axis Ac extending along the length of the handlebar 104. For example, the first set 112 of the plurality of weigh plates 106 are positioned at an angle rotated counterclockwise from the axis A1, while the second set 116 of the plurality of weight plates 106 are positioned at an angle rotated clockwise from the axis A1. According to this embodiment, the angle is preferably about 3-4 degrees.

[0076] Now referring to FIGS. 3-5 is an exemplary embodiment of the handlebar 104 as shown in FIGS. 1-2. According to this embodiment, the handlebar 104 is a dumbbell handlebar. In other embodiments, the handlebar 104 may be a straight bar, a curled bar, or any other type of weightlifting bar. For example, the adjustable weightlifting system 100 may include a plurality of handlebars 104 such that various

[0077] The handlebar 104 includes a handgrip portion 302 (e.g., a central handgrip, etc.) and at least one weight-support portions 304, 306 (e.g., a first weight-support portion 304 and a second weight-support portion 306, etc.). According to this embodiment, the handgrip portion 302 is positioned between the first weight-support portion 304 and the second weight-support portion 306. For example, the handgrip portion 302 may be centered along the handlebar 104. As previously described the handgrip portion 302 may include a portion of texturization (e.g., knurling, etc.) configured to facilitate a user's grip on the handlebar 104.

[0078] The first weight-support portion 304 is positioned on the first side 114 of the weightlifting device 102, and the second weight-support portion 306 is positioned on the second side 111 of the weightlifting device 102. The first weight-support portion 304 is configured to support at least a portion of the first set 112 of the plurality of weight plate 106 (e.g., one weight plate, two weight plates, five weight plates, etc.) to the weightlifting device 102. Similarly, the second weight-support portion 306 is configured to support at least a portion of the second set 116 of the plurality of weight plates 106 (e.g., one weight plate, two weight plates, five weight plates, etc.) to the weightlifting device 102.

[0079] The handlebar 104 also includes the separation plates 120, 122 (e.g., the first separation plate 120 and the second separation plate 122, etc.). The first separation plate 120 is positioned between the first weight-support portion 304 and the handgrip portion 302. The second separation plate 122 is positioned between the second weight-support portion 306 and the handgrip portion 302. The separation plates 120, 122 are configured to separate the plurality of weight plates 106 engaged with the weightlifting device 102 from the handgrip portion 302. For example, the separation plates 120, 122 define a grip cavity 308 preventing the weight plates 106 from leaning inwards into the grip cavity 308 toward the handgrip portion 302.

[0080] Each of the first weight-support portion 304 and the second weight-support portion 306 define a plurality of openings 310. The plurality of openings 310 are configured to receive a locking pin, such as locking pin 108. For example, the locking pins 108 are received by a first end of the openings 310 and extend through a second end of the openings 310 such that the locking pins 108 extend though one of the first weight-support portion 304 or the second weight-support portion 306.

[0081] As shown in FIG. 3, the openings 310 are positioned on a bottom portion 312 of the weight-support portions 304, 306, such that the openings are positioned along a center axis Ac of the handlebar 104. The weight-support portions 304, 306 also include a top portion 314 positioned above (e.g., adjacent to, etc.) the bottom portion 312. When the weightlifting device 102 is in use, the top portion 314 is positioned within a portion of the weight plates 106.

[0082] As shown in FIG. 4, the weight-support portions 304, 306 also include handlebar end caps 402, 404. The handlebar end caps 402, 404 couple the bottom portions 312 to the top portions 314. The handlebar end caps 402, 404 are configured to close off (e.g., seal, etc.) the ends of the handlebar 104.

[0083] As shown in FIG. 5, the separation plates 120, 122 are positioned at an angle (e.g., the angle a, etc.) relative to the handlebar 104 (e.g., a center axis Ac of the handlebar 104, an axis A1 perpendicular to the handlebar 104, etc.). For example, the angle may be the angle a, such that the angle is in a range between three to five degrees relative to the axis A1 such that the separation plates 120, 122 are positioned parallel to the weight plates 106. As such, a distance between the first separation plate 120 and the second separation plate varies along an axis perpendicular to the handgrip portion 302. For example, a first separation plate distance DS1 (e.g., a distance from first edges of the separation plates, a distance from top edges of the separation plates, etc.) is greater than a second separation plate distance DS2 (e.g., a distance from second edges of the separation plates, a distance from bottom edges of the separation plates, etc.).

[0084] Now referring to FIGS. 6-11 are exemplary embodiments of the plurality of weight plates 106 of the adjustable weightlifting system 100. As shown in FIGS. 6 and 7, the plurality of weight plates 106 includes at least a first weight plate 600 and a second weight plate 900.

[0085] Each of the plurality of weight plates 106 (e.g., the first weight plate 600, the second weight plate 900, etc.) includes an indent 602. According to this embodiment, the indent 602 includes a first side 604 and two second sides 606 positioned at an angle (e.g., an angle b, etc.) relative to the first side 604 (e.g., the indent 602 is substantially trapezoidal in shape, etc.). In other embodiments, the indent 602 may be a different shape (e.g., square-like, a rectangular cut-out, etc.). The indent 602 is configured to accommodate the locking pin 108. For example, the indent 602 receives a portion of the locking pin 108 as discussed in more detail below. The first side 604 of the indent 602 is in contact with a portion of the locking pin 108 when the locking pin 108 is inserted into the weight plate 106 (e.g., a cavity defined by the weight plate, etc.). The indent 602 allows the locking pin 108 to sit in the indent 602 such that the locking pin 108 protrudes outward from the weight plate 106 less.

[0086] Each of the weight plates 106 defines a bar slot 608. The bar slot 608 is positioned along a vertical plate center axis AVPC and across a horizontal plate center axis AHPC. For example, the bar slot 608 extends from a first edge 610 of the weight plate 106 down toward a center of the weight plate 106 (e.g., extends about one and a half to inches to three inches towards the center of the plate 106, etc.).

[0087] The bar slot 608 includes a curved portion 612 (e.g., semi-circular, etc.). The curved portion 612 is positioned at an end of the bar slot 608 opposite the first edge 610. The curved portion 612 is configured to receive the weight-support portions 304, 306 of the handlebar 104. For example, the weight-support portions 304, 306 rests against the curved portion 612 when the weightlifting device 102 is positioned in the tray 124.

[0088] Each of the weight plates 106 also defines the passage 110 as described above. The passage 110 extends from the indent 602 at an angle across the bar slot 608. For example, the passage 110 extends across each of the vertical plate center axis AVPC and the horizontal plate center axis AHPC. As shown in FIGS. 6-10, the passage 110 extends from an upper quadrant to a lower quadrant of the weight plate 106 defined by the plate center axis AVPC and the horizontal plate center axis AHPC. For example, the passage 110 is defined along a passage center axis APC. The passage center axis APC intersects (e.g., crosses, etc.) each of the vertical plate center axis AVPC and the horizontal plate center axis AHPC. For example, the passage center axis APC may extend at an angle c within a range of between 30 degrees and 60 degrees (e.g., 40 degrees, 45 degrees, 50 degrees, etc.) relative to the horizontal plate center axis AHPC. As shown in FIGS. 6-9, the passage 110 is positioned on an outward side 614 (e.g., a side facing outward from the handgrip portion 302, etc.).

[0089] The passage 110 is configured to receive the locking pin 108. For example, the passage 110 receives the locking pin 108 at the indent 602 and the locking pin 108 extends through the bar slot 608 and the weight-support portions 304, 306 securing the weight plate 106 to the handlebar 104.

[0090] According to this embodiment, the passage 110 is cylindrical in shape, such that an inner surface of passage 110 is curved. In other embodiments, the passage 110 may be defined by a different shape.

[0091] As shown in FIGS. 6-11, the plurality of weight plates 106 include at least one projection 620, 622 (e.g., a first projection 620, a second projection 622, a third projection, etc.). As shown in FIGS. 6-11, the weight plates106 comprise a first projection 620 and a second projection 622. According to this embodiment, the second projection 622 is positioned a distance (e.g., a first distance d1, half an inch, an inch, etc.) away (e.g., along an axis parallel to the horizontal plate axis AHPC, etc.) from the first projection 620. The projections 620, 622 extend at an angle (e.g., within 80 degrees and 100 degrees relative to the weight plate 106, preferably 90 degrees relative to the weight plate 106, etc.) away from an inward side 706 (e.g., a side opposite the outward side 614, etc.). For example, when the weight plates 106 are coupled to the weight-support portions 304, 306 of the handlebar 104, the projections 620, 622 extend towards the handgrip portion 302 (e.g., towards a center of the weightlifting device 102, etc.). According to this embodiment, the projections 620, 622 are configured to engage with an inwardly (e.g., towards the handgrip portion 302, etc.) adjacent weight plate of the plurality of weight plates 106 (e.g., a successively inward adjacent weight plate relative to the handgrip portion 302, etc.) as described in more detail below. In other embodiments, the projections 620, 622 are configured to engage with an outwardly (e.g., away from the handgrip portion 302, etc.) adjacent weight plate of the plurality of weight plates 106 (e.g., a successively outward adjacent weight plate relative to the handgrip portion 302, etc.)

[0092] As shown in FIGS. 6-11, the projections 620, 622 may be cylindrical in shape. According to some embodiments, the projections 620, 622 may be press fit into openings defined by each of the plurality of weight plates 106 (e.g., a first projection opening 616, a second projection opening 618, etc.).

[0093] The projections 620, 622 are configured to engage with the inwardly-adjacent weight plate of the plurality of weight plates 106 such that the inwardly-adjacent weight plate is support by (e.g., lifting up by, etc.) the projections 620, 622. For example, the inwardly-adjacent weight plates of the plurality of weight plates 106 are hung onto the projections 620, 622 of outwardly-adjacent weight plate of the plurality of weight plates 106. For example, each weight plate engages with a progressively (e.g., successively, etc.) inwardly-adjacent weight plate 106. In other embodiments, the projections 620, 622 are configured to engage with the outwardly-adjacent weight plate of the plurality of weight plates 106 in a similar manner such that the outwardly adjacent weight plate is support by (e.g., lifting up by, etc.) the projections 620, 622. Now referring to FIG. 6, is a first weight plate 600 of the plurality of weight plates 106. The first weight plate 600 includes at least one first plate slot 624, 626 (e.g., a first slot 624, a second slot 626, etc.). The first slot 624 is positioned adjacent to the first projection 620. For example, the first slot 624 is positioned laterally adjacent to an outward side of the first projection 620 (e.g., a lateral side away from the vertical center axis AVPC, etc.). Similarly, the second slot 626 is positioned adjacent to an outward side of the second projection 622. For example, a distance (e.g., a second distance d2, etc.) between the first slot 624 and the second slot 626 is greater than (e.g., longer than, etc.) the distance (e.g., the first distance d1, etc.) between the first projection 620 and the second projection 622. The slots 624, 626 are configured to receive projections (e.g., projections 620, 622, etc.) of a weight plate 106 positioned outwardly-adjacent (e.g., adjacent to the first weight plate 600 on a side further from or opposite to the handgrip portion 302 of the handlebar 104, etc.) the to the first weight plate 600. For example, when a weight plate 106 outwardly-adjacent to the first weight plate 600 is engaged with the weight-support portions 304, 306 of the handlebar (e.g., the locking pin 108 is inserted into the passage 110, etc.) the projections 620, 622 of the weight plate 106 outwardly-adjacent to the first weight plate 600 engage with the slots 624, 626 of the first weight plate 600 coupling the first weight plate 600 to the weight-support portions 304, 306 of the handlebar 104.

[0094] The first weight plate 600 also includes at least one protrusion 628, 630. The protrusions 628, 630 (e.g., a first protrusion 628, a second protrusion 630, etc.) are positioned on a second end 632 of the weight plate 600 (e.g., a side opposite the first edge 610, etc.). As shown in FIG. 6, the first protrusion 628 is positioned adjacent to (e.g., along a vertical axis below, etc.) the second projection 622 on the second end 632 (e.g., on a bottom end, etc.) of the weight plate 600. Similarly, the second protrusion 630 is positioned adjacent to (e.g., along a vertical axis below, etc.) the second projection 622 on the second end 632 of the weight plate 600. For example, the first protrusion 628 is positioned about the same distance away from the second protrusion 630 as the distance (e.g., the first distance) that the first projection 620 is positioned from the second projection 622. The protrusions 628, 630 are configured to engage with a portion of the tray 124 as described in more detail below. For example, the protrusions 628, 630 are received by a portion of the tray 124 such that when the protrusions 628, 630 are engage with the tray 124, the protrusions 628, 630 facilitate the weight plate 106, 600 being an upright (e.g., vertical position, etc.) when positioned in the tray 124.

[0095] The weight plate 600 also includes guide surfaces 634, 636 (e.g., a first guide surface 634, a second guide surface 636, etc.) and lateral slot sides 638, 640 (e.g., first lateral slot side 638, second lateral slot side 640, etc.). The guide surfaces 634, 636 and the lateral slot sides 638, 640 define the bar slot 608. Each of the guide surfaces 634, 636 extend from the first edge 610 of the weight plate 600 towards the vertical center axis AVPC to the lateral slot sides 638, 640. The guide surfaces 634, 636 are configured to guide the weight-support portions 304, 306 into the bar slot 608. As shown in FIG. 6, the guide surfaces 634, 636 are positioned at an angle d in a range between 20 degrees to 40 degrees relative to the vertical center axis AVPC.

[0096] Now referring to FIGS. 9 and 10, is a second weight plate 900 of the plurality of weight plates 106. According to this embodiment, the second weight plate 900 includes projections 902, 904 (e.g., a third projection 902, a fourth projection 904, etc.). Similar to the projections 620, 622 of the first weight plate 600, the projections 902, 904 of the second weight plate 900 also extend outward from the second weight plate 900 at an angle (e.g., perpendicular to the second weight plate 900, at an angle in a range between 85 degrees and 95 degrees, etc.).

[0097] However, as shown in FIGS. 9 and 10, the third projection 902 is positioned a third distance d3 away from the fourth projection 904. The third distance d3 is greater than the first distance d1 between the first projection 620 and the second projection 622 of the first weight plate 600. For example, the third projection 902 and the fourth projection 904 are positioned a greater distance outward (e.g., toward a lateral edge of the second weight plate 900, etc.) from the vertical center axis AVPC than the first projection 620 and the second projection 622 of the first weight plate 600. For example, the third projection 902 is positioned the second distance d2 away from the fourth projection 904 such that each of the third projection 902 aligns with the first slot 624 and the second projections aligns with the second slot 626.

[0098] The second weight plate 900 also includes at least one slot 906, 908. The slots 906, 908 may be similar in size and shape to the slots 624, 626. According to the embodiment shown in FIGS. 9 and 10, the second weight plate 900 includes a first slot 906 and a second slot 908 positioned a distance away from the first slot 906. For example, the first slot 906 is positioned a distance (e.g., the second distance d2, etc.) away from the second slot 908 such that the projections 620, 622 are aligned with each of the first slot 906 and the second slot 908. When the second weight plate 900 is engaged with the first weight plate 600, the first slot 906 and the second slot 908 receive the projections 620, 622 engaging the second weight plate 900 with the first weight plate 600.

[0099] According to this embodiment, the second weight plate 900 also includes a second plate protrusion 910. The second plate protrusion 910 is centered along the vertical plate center axis AVPC. Similar to the protrusions 628, 630, the second plate protrusion 910 is configured to engage with the tray 124. For example, the second plate protrusion 910 is received by a portion of the tray 124 such that the second plate protrusion 910 facilitates the second weight plate 900 being positioned in a vertical (e.g., upright position, etc.) within the tray 124.

[0100] Now referring to FIG. 11 is the plurality of weight plates 106 including the first weight plate 600 and the second weight plate 900. As shown in FIG. 6, the first projection 620 is offset from the third projection 902 and the second projection 622 is offset the fourth projection 904. As described above, the first projection 620 is positioned the first distance away from the second projection 622, and the third projection 902 is positioned a third distance away from the fourth projection 904 such that the projections 620, 622 are offset from the projections 902, 904. For example, when the second weight plate 900 is secured to the weight-support portions 304, 306 by the locking pin 108, the second weight plate 900 engages the first weight plate 600. For example, when the second weight plate 900 is engaged with the first weight plate 600, the protrusions 902, 904 are received by, or positioned within, the slots 624, 626. Similarly, the first weight plate 600 engages another one of the plurality of weight plates (e.g., a second one of the plurality of second weight plates 900, etc.) that is positioned on a side adjacent to the first weight plate 600 and inward toward a handgrip portion 302 of the handlebar 104.

[0101] As shown in FIG. 11, the plurality of weight plates 106 alternative between the first weight plate 600 and the second weight plate 900. For example, the first weight plate 600 is positioned between two of the second weight plates 900. Similarly, the second weight plate 900 is positioned between two of the first weight plates 600. In another embodiment, the adjustable weightlifting system 100 may include any number of embodiments of weight plates 106, and the weight plate 106 may be arranged in any pattern such that each of the weight plates 106 engages with a weight plate 106 positioned adjacent to the weight plate and one of inward toward the handgrip portion 302 of the handlebar 104 or outward away from the handgrip portion 302 of the handlebar 104.

[0102] FIG. 12 is a side view of the locking pin 108. The locking pin 108 includes a locking pin body 1202. The locking pin body 1202 includes a first end 1204 and a second end 1206. The second end 1206 is opposite the first end 1204.

[0103] The first end 1204 includes a locking pin head 1208. The locking pin head 1208 is configured to engage with the first side 604 of the indent 602. For example, the locking pin head 1208 is configured to rest on (e.g., sit on, contact, etc.) the first side 604 of the indent 602. The locking pin head 1208 is configured to facilitate (e.g., aid, etc.) the insertion and removal of the locking pin 108.

[0104] The second end 1206 includes a ball lock 1210. The ball lock 1210 is configured to engage with the passage 110. For example, the ball lock 1210 is configured to apply a force against a wall of the passage 110 locking the locking pin 108 in place within the passage 110. In some embodiments, each weight plate 106 may define a ball lock groove configured to receive the ball lock 1210.

[0105] The locking pin head 1208 includes a button 1212. The button 1212 is configured to actuate the ball lock 1210. For example, a user may press (e.g., engage, actuate, move, etc.) the button 1212 to release the ball lock 1210. For example, when the button 1212 is pressed, the button 1212 causes the ball lock 1210 to move (e.g., withdraw, etc.) back into the locking pin body 1202 such that the ball lock 1210 is disengaged from the walls of the passage 110.

[0106] In another embodiment, the locking pin head 1208 may comprise a magnet. For example, the magnet of the locking pin head 1208 may be attracted to (e.g., magnetically pulled, etc.) to the weight plates 106 further securing the locking pin 108 in place. In other embodiments, the locking pin 108 may only include the locking pin body 1202 and the locking pin head 1208.

[0107] FIG. 13 is a side view of the adjustable weightlifting system 100 including the plurality of weight plates 106 and the locking pin 108. As shown in FIG. 10, the adjustable weightlifting system 100 includes the second weight plate 900 and a third weight plate 1300. The third weight plate 1300 is an end weight plate. For example, the third weight plate 1300 is an outermost plate of the plurality of weigh plates 106. For example, the third weight plate 1300 is positioned on an end of the weight-support portions 304, 306 opposite the handgrip portion 302.

[0108] The third weight plate 1300 is substantially similar to the first weight plate 600. However, as shown in FIG. 13, the third weight plate 1300 includes an end plate 1302. The end plate 1302 is coupled to the third weight plate 1300. The end plate 1302 is positioned on an outermost side 1304 (e.g., a side facing opposite the handgrip portion 302, etc.) of the third weight plate 1300. The end plate 1302 is substantially flat (e.g., smooth, etc.).

[0109] As shown in FIG. 13, the third weight plate 1300 is engaged with the second weight plate 900. When in an engaged position, as shown in FIG. 10, the projections 620, 622 are engaged with slots 906, 908 of the adjacent second weight plate 900.

[0110] As shown in FIG. 11, the locking pin 108 is positioned in the passage 110 of the third weight plate 1300 such that each of the plurality of weight plates 106 positioned successively inward from the third weight plate 1300.

[0111] Now referring to FIGS. 14-15 illustrate a method of using the adjustable weightlifting system 100. As shown in FIG. 14, a user selects an amount of weight to engage with the handlebar 104, and places the locking pin 108 within the passage 110 corresponding to the selected (e.g., desired, etc.) weight.

[0112] Once the locking pin is positioned within the passage 110, the user grasps the handgrip portion 302 of the handlebar 104 and lifts the handlebar 104 including the plurality engaged weight plates 106 positioned inward of the weight plate 106 engaged with the locking pin 108 out of the tray 124. The plurality of weight plates 106 not engaged (e.g., positioned outward of the weight plate 106 engaged with the locking pin 108, etc.) remain in the tray 124 positioned in an upright position.

[0113] Now referring to FIGS. 16-18 is the adjustable weightlifting system 100 including the tray 124. The tray 124 includes weight storing portions 1602, 1604 and a pin storage 1606. The pin storage 1606 is positioned between each of the weight storing portions 1602, 1604. The pin storage 1606 may be elevated (e.g., raised, extend vertically above, etc.). The pin storage 1606 is configured to store the locking pins 108.

[0114] The weight storing portions 1602, 1604 may be recessed such that a portion of the weight storing portions 1602, 1604 surround a lower portion of the plurality of weight plates 106.

[0115] Each of the weight storing portions 1602, 1604 include a plurality of feet 1608. The plurality of feet 1608 may include pads configured to grip a surface in which the tray 124 is placed.

[0116] As shown in FIGS. 17-18, the weight storing portions 1602, 1604 include recesses 1702. The recesses 1702 are staggered such that the recesses 1702 algin with the projections 620, 622, of the first weight plate 600 and the projections 902, 904 of the second weight plate 900. For example, the recesses 1702 receive the projections 620, 622, 902, 904, such that the weight plurality of weight plates 106 (e.g., the first weight plate 600, the second weight plate 900, the third weight plates 1300, etc.) remain in an upright (e.g., vertical position, etc.) when stored in the tray 124 even when the handlebar 104 is removed from the tray 124.

[0117] Now referring to FIG. 19 is the adjustable weightlifting system 1900 according to another embodiment. According to this embodiment, the adjustable weightlifting system 1900 includes a tether 1902. The tether 1902 is coupled to an innermost plate 1904 of the plurality of weight plates 106 and to the locking pin head 1208 of the locking pin 108. The tether 1902 is configured to couple the locking pin 108 to the innermost plate 1904 such that the locking pin 108 is removable from the weight plates 106 yet still coupled to the adjustable weightlifting system 1900. For example, the tether 1902 facilitates keeping the locking pin 108 with the other components of the adjustable weightlifting system 1900 to reduce instances of misplacing the locking pins 108.

[0118] Now referring to FIGS. 20-27 is the adjustable weightlifting system 2000 according to another embodiments. According to this embodiment, the adjustable weightlifting system 2000 includes a weightlifting device 2002, a plurality of weight plates 2004, and a locking pin 2006.

[0119] According to this embodiment, the weightlifting device 2002 is a kettlebell. The weightlifting device 2002 includes a weight housing 2008. According to this embodiment, the weight housing 2008 is substantially hexagonal in shape. According to other embodiments, the weightlifting device may substantially cube-like, rectangular, or any other shape. The weight housing 2008 is configured to receiving at least one of the plurality of weight plates 2004. For example, a user may determine a desired weight to lift using the weightlifting device 2002 and coupled the desired weight to the weight housing 2008.

[0120] The weight housing 2008 includes a base surface 2010 and side surfaces 2012. The side surfaces 2012 extend from the base surface 2010 such that the side surfaces surround the plurality of weight plates 2004 engaged with the weight housing 2008.

[0121] The weightlifting device 2002 further includes a handle 2014. The handle 2014 is curved (e.g., bowed, semi-circular, etc.) and coupled to the base surface 2010 weight housing 2008. The handle 2014 is configured to be gripped (e.g., grasped, held, etc.) by a user such that the user can perform various exercises (e.g., kettlebell swings, crunches, etc.).

[0122] The handle 2014 incudes a handgrip portion 2016. The handgrip portion 2016 includes texturization (e.g., knurling, etc.). For example, the handgrip portion 2016 includes knurling to facilitate a gripping the handle 2014.

[0123] The weight housing 2008 further includes a housing recess 2018. The housing recess 2018 is positioned on one of the side surfaces 2012. The housing recess 2018 defines a plurality of housing openings 2020. The housing openings are configured to receive the locking pin 2006. For example, the locking pin 2006 extends through the housing openings 2020 of the weight housing 2008 and though at least one of the plurality of weight plates 2004 coupling the at least one of the plurality of weight plates 2004 to the weightlifting device 2002.

[0124] The weightlifting device 2002 also includes a tray 2022. The tray 2022 includes a base 2024. The base 2024 is configured to receive (e.g., store, etc.) at least one of the plurality of weight plates 2004 or weight housing 2008.

[0125] The locking pin 2006 is similar to the locking pin 108. For example, the locking pin 2006 includes a locking pin head 2026 and a locking pin body 2028. The locking pin body 2028 is receiving by the housing openings 2020 and the locking pin head 2026 is positioned in the housing recess 2018.

[0126] The plurality of weight plates 2004 include at least one plate opening 2030, 2032. According to the embodiment shown in FIG. 20, the weight plates 2004 include a first plate opening 2030 and a second plate opening 2032. The plate openings 2030, 2032 are centered on a horizontal center plate axis AHC. For example, the second plate opening 2032 is positioned a distance away from the first plate opening 2030 along the horizontal center plate axis AHC.

[0127] The plurality of weight plates 2004 each define a passage 2034. The passage 2034 is configured to receive the locking pin 2006. For example, a user may insert the locking pin 2006 through the weight housing 2008 and through the passage 2034 of the desired weight plate 2004, coupling the desired weight plate 2004 and the plurality of weight plates 2004 positioned above (e.g., vertically above, adjacent to a first side of the weight plate 2004 nearest the base surface 2010 of the weight housing 2008, etc.). For example, the locking pin 2006 couples the selected amount of weight (e.g., the engaged weight plate 2004 and the plurality of weight plates above the engaged weight plate, etc.) to the weight housing 2008 and supports the selected amount of weight during use of the weightlifting device 2002.

[0128] As shown in FIG. 21, the base 2024 includes at least one prong 2102, 2104 extending away from the base 2024. For example, the prongs 2102, 2104 extend upwards substantially perpendicular to the base 2024. The base 2024 is configured to receive the plurality of weight plates 2004 such that the plurality of weight plates 2004 are stored on (e.g., lay on, rest on, etc.) the base 2024. For example, the prongs 2102, 2104 extend through the plate openings 2030, 2032 securing the plurality of weight plates 2004 to the base 2024

[0129] As shown in FIG. 22, the base 2024 includes a weight plate base 2202 and a housing base 2204. The weight plate base 2202 is positioned on the housing base 2204. For example, the housing base 2204 may be larger (e.g., have a greater surface area, etc.) than the weight plate base 2202. The weight plate base 2202 is configured to receive the plurality of weight plates 2004. For example, the plurality of weight plates 2004 are stored on the weight plate base 2202 when not coupled to the weight housing 2008. When the weightlifting device 2002 is not in use, the plurality of weight plates 2004 are stored on the weight plate base 2202 and the weight housing 2008 is stored on top of the housing base 2204 surrounding (e.g., enclosing, etc.) the plurality of weight plates 2004.

[0130] FIG. 24 is bottom view of the weightlifting device 2002. As shown in FIG. 24, the locking pin body 2028 of the locking pin 2006 is positioned through the passage 2034. The passage 2034 extends from a first edge 2402 (e.g., a top edge, a first side edge, etc.) of each of the plurality of weight plates 2004 to a second edge 2404 (e.g., a bottom edge, a second side edge opposite the first side edge, etc.) opposite the first edge 2402.

[0131] The locking pin 2006 extends through a first housing side 2406 to a second housing side 2408. As shown in FIG. 24, the locking pin 2006 includes a ball lock 2410. For example, when the locking pin 2006 is engaged with one of the weight plates 2004, the locking pin 2006 extends through the first housing side 2406 and the second housing side 2408 such that the ball lock 2410 is positioned on an exterior side of the second housing side 2408.

[0132] FIG. 25 is a bottom perspective view of the weight housing 2008. The base surface 2010 and the side surfaces 2012 define a weight cavity 2502. The weight cavity 2502 is configured to receive and housing the plurality of weight plates 2004.

[0133] FIGS. 26-27 illustrate one of the plurality of weight plates 2004. As shown in FIGS. 26-27 and as previously described, the weight plate 2004 includes the plate openings 2030, 2032 and the passage 2034. The passage 2034 is positioned on a bottom side 2602 (e.g., a side that contacts the weight plate base 2202. The passage 2034 is also centered along the plate center axis APC. Each of the plate openings 2030, 2032 are positioned equidistant from the plate center axis APC.

[0134] Now referring to FIGS. 28-30 is the adjustable weightlifting system 2800 according to another embodiments. According to this embodiment, the adjustable weightlifting system 2800 is an adjustable kettlebell weightlifting system. The adjustable weightlifting system 2800 includes an adjustable weightlifting device 2802 (e.g., an adjustable kettlebell, etc.), a plurality of weight plates 2804, and a locking pin 2806.

[0135] As shown in FIGS. 28-30, the adjustable weightlifting device 2802 includes a weight-support portion 2808. The weight-support portion 2808 is configured to couple the plurality of weight plates 2804. The weight-support portion 2808 defines a plurality of apertures 2810 (e.g., openings, holes, etc.). The apertures 2810 of the weight-support portion 2808 is configured to receive the locking pin 2806 to couple at least one of the plurality of weight plates 2804 to the adjustable weightlifting device 2802.

[0136] As shown in FIGS. 28-30, the weight-support portion 2808 at least partially surrounds the plurality of weight plates 2804. For example, the weight-support portion 2808 includes a curved portion 2812 and a base portion 2814. The base portion 2814 is a ring shape that supports the adjustable weightlifting device 2802 (e.g., the adjustable weightlifting device rests on, etc.) when the adjustable weightlifting device 2802 is not in use. The curved portion 2812 is coupled to the base portion 2814 such that the curved portion 2812 is positioned perpendicular to the base portion 2814. According to this embodiment, the base portion 2814 defines notches or cutouts 2815 as described in further detail below.

[0137] The adjustable weightlifting device 2802 also includes a handle 2816. The handle 2816 is coupled to the curved portion 2812 of the weight-support portion 2808. The handle 2816 is curved (e.g., arched, bent, etc.) such that the handle 2816 defines a handgrip cavity 2818 between the handle 2816 and the curved portion 2812.

[0138] The adjustable weightlifting device 2802 also includes a weight housing 2820. The weight housing 2820 is substantially dome-shaped but other shapes are possible (e.g., cubic, etc.). According to this embodiment, the weight housing 2820 includes a first weight housing piece 2822 and a second weight housing piece 2824. Each of the first weight housing piece 2822 and the second weight housing piece 2824 are coupled to the each of the curved portion 2812 and the base portion 2814 of the weight-support portion 2808. The weight housing 2820 defines a weight plate cavity 2826 and is configured to house (e.g., enclose, surround, etc.) the plurality of weight plates 2804. For example, according to this embodiment, the adjustable weightlifting device 2802 comprises a plurality of fasteners (e.g., screws, bolts, etc.) configured to couple the weight housing 2820 to the curved portion 2812 and the base portion 2814.

[0139] The adjustable weightlifting system 2800 also includes a base 2828. The base 2828 includes a raised portion 2830, a recessed edge 2832, and at least one notch 2834. The raised portion 2830 extends a distance above the recessed edge 2832. According to this embodiment, the base 2828 includes two notches 2834. The notches 2834 extend from the raised portion 2830 to an outer edge of the recessed edge 2832. The raised portion 2830 is configured to support the plurality of weight plates 2804 when the adjustable weightlifting device 2802 is not in use. The recessed edge 2832 is configured to engage with (e.g., support, contact, etc.) the base portion 2814 of the weight-support portion 2808. The notches 2834 are received by the notch cutouts 2815 securing the base portion 2814 to the base 2828.

[0140] As shown in FIGS. 28-30, the adjustable weightlifting device 2802 includes the plurality of weight plates 2804. According to this embodiment, the plurality of weight plates 2804 are cylindrical (e.g., a circular top and bottom surface, etc.).

[0141] The plurality of weight plates 2804 define a plurality of openings 2836 (e.g., 4 openings, 4 holes, etc.). Each of the plurality of openings 2836 are positioned equidistant (e.g., substantially the same distance from, etc.) to another one of the plurality of openings 2836. In some embodiments, the base 2828 comprises prongs (e.g., prongs 1846, etc.) that are received by the plurality of openings 2836 such that the weight plates 2804 are secured to (e.g., engaged with, etc.) the base 2828 as previously described in other embodiments.

[0142] Similar to the embodiments of FIGS. 1-20, the plurality of weight plates 2804 define a passage 2838. Each of the passages 2838 are defined through a center of the weight plates 2804. The passage 2838 is configured to engage with (e.g., receive, etc.) the locking pin 2806. For example, the locking pin 2806 is provided through one of the apertures 2810 (e.g., threaded through, received by, etc.) and is then received by one of the passages 2838. By engaging one of the plurality of weight plates 2804 with the locking pin 2806 (e.g., coupling the weight plate 2804 to the weight housing 2820, etc.), each of the weight plates 2804 positioned adjacent to and in a direction from the engaged weight plate 2804 is coupled to (e.g., supported within the weight plate cavity 2826, etc.) the adjustable weightlifting device 2802. For example, according to this embodiment, each of the plates positioned successively in a direction towards the handle 2816 (e.g., an inward direction, etc.) within the weight plate cavity 2826 is engaged with the adjustable weightlifting device 2802 for performing an exercise. According to another embodiment each of the plates positioned successively in a direction away from the handle 2816 (e.g., an outward direction, etc.) within the weight plate cavity 2826 is engaged with the adjustable weightlifting device 2802 for performing an exercise.

[0143] As shown in FIG. 30, each of the first weight housing piece 2822 and the second weight housing piece 2824 are removably coupled to the curved portion 2812. The adjustable weightlifting system 2800 includes a plurality of screws 3002 (e.g., fasteners, bolts, etc.). Each of the first weight housing piece 2822 and the second weight housing piece 2824 may be formed of a more flexible material such as plastic, and the weight-support portion 2808 may be formed of a more rigid material such as a metal.

[0144] Now referring to FIGS. 31-40 is the adjustable weightlifting system 3100 according to another embodiment. According to this embodiment, the adjustable weightlifting system 3100 is an adjustable kettlebell weightlifting system. The adjustable weightlifting system 3100 includes an adjustable weightlifting device 3102 (e.g., an adjustable kettlebell, etc.), a plurality of weight plates 3104, and a locking pin 3106.

[0145] As shown in FIGS. 31-32 is the adjustable weightlifting system 3100 including the adjustable weighting device 3102. Similar to the embodiment of FIGS. 28-30, the adjustable weightlifting device 3102 includes the weight-support portion 3108 configured to couple the plurality of weight plates 3104. The weight-support portion 3108 defines a plurality of apertures 3110 (e.g., openings, holes, etc.). The apertures 3110 of the weight-support portion 3108 is configured to receive the locking pin 3106 to couple at least one of the plurality of weight plates 3104 to the adjustable weightlifting device 3102.

[0146] The weight-support portion 3108 at least partially surrounds the plurality of weight plates 2804. For example, the weight-support portion 2808 includes a curved portion 3112. The curved portion 3112 is substantially ring shaped such that the curved portion extends up and around the sides and top portions of the plurality of weight plates 3104.

[0147] The adjustable weightlifting device 3102 also includes a handle 3116. The handle 3116 is coupled to the curved portion 3112 of the weight-support portion 3108. The handle 3116 is curved (e.g., arched, bent, etc.) such that the handle 3116 defines a handgrip cavity 3118 between the handle 3116 and the curved portion 3112.

[0148] As shown in FIGS. 31-32, according to this embodiment, the adjustable weightlifting device 3102 includes housing pieces 3120. According to this embodiment, the adjustable weightlifting device 3102 includes two housing pieces 3120. Each of the housing pieces 3120 are coupled to the weight-support portion 3108. As such, the curved portion 3112 and the housing pieces 3120 define a weight plate cavity as described in more detail below.

[0149] The adjustable weightlifting system 3100 further includes a weight plate base 3122. The weight plate base 3122 includes a base plate 3124. The base plate 3124 is configured is configured to selectively couple to the weight-support portion 3108. AS shown in FIGS. 31-32, the base plate 3124 has a greater diameter than the weight-support portion 3108 including the housing pieces 3120 such that the base plate 3124 extends outwards past each of the weight-support portion 3108 and the housing pieces 3120.

[0150] Now referring to FIGS. 33-35 is a side view, perspective view, and front view of a portion of the adjustable weightlifting system 3100 including the adjustable weightlifting device 3102. As previously described. The weight-support portion 3108 and the housing pieces 3120 define a weight plate cavity 3300. As shown in FIGS. 33 and 34, according to this embodiment, the adjustable weightlifting device 3102 includes ten plurality of weight plates 3104 positioned in the weight plate cavity 3300. In other embodiments, more or less weight plates 3104 may be positioned within the weight plate cavity 3300 and coupled to the adjustable weightlifting device 3102. For example, a user may only couple 1 or 2 of the plurality of weight plates 3104 to the adjustable weightlifting device 3102 to decrease the overall weight of the adjustable weightlifting system 3100 for certain exercises.

[0151] According to this embodiment, the adjustable weightlifting device 3102 further includes a support mechanism 3302 coupled to the weight-support portion 3108. Unlike the embodiment, of FIGS. 28-30, this embodiment does not include a base portion 2825. Instead, the weight-support portion 3108 is semicircular or horseshoe like in shape with an open bottom portion.

[0152] The support mechanism 3302 includes a support rod 3306. The support rod 3306 extends in a direction parallel to a grip portion of the handle 3116. For example, the support rod 3306 extends from a first side of the weight-support portion 3108 where a first set of openings 310 are positioned to a second side of the weight-support portion 3108 where a second set of openings 310 are positioned.

[0153] The weight-support portion 3108 includes handle supports 3304 (e.g., a first handle supports 3304 and a second handle supports 3304, etc.). The handle supports 3304 extend from the curved portion 3112 of the weight-support portion 3108 downward into the weight plate cavity 3300. The handle supports 3304 engage with, or are in contact with, the support rod 3306.

[0154] As shown in FIGS. 33-35, the weight plate base 3122 includes a raise base 3308. The raised base 3308 is coupled to the base plate 3124 and comprises a smaller (e.g., lesser, etc.) diameter than the base plate 3124 As such, the sides of the weight-support portion 3108 extend around, or are adjacent to, the raised base 3308 when the adjustable weightlifting device 3102 is resting on top of the weight plate base 3122 of when the bottom portion 312 is coupled to the adjustable weightlifting device 3102. As shown in FIGS. 33-35, the sides of the weight-support portion 3108 is curved such that a distance between the sides of the weight-support portion 3108 varies along a vertical axis of the adjustable weightlifting device 3102.

[0155] According to some embodiments, and described in more detail below, the plurality of weight plates 3104 includes an anchor plate 3310. The anchor plate 3310 comprises a weight (e.g., 2 lbs, 5 lbs, etc.) similar to the rest of the plurality of weight plates 3104. However, according to this embodiment, the anchor plate 3310 is coupled to the weight plate base 3122. For example, when the raised base 3308 is selectively coupled to the adjustable weightlifting device 3102 via the locking pin 3106, the weight plate base 3122 is also coupled to the adjustable weightlifting device 3102.

[0156] As shown in FIG. 35, the weight plate cavity 3300 includes support plates 3502 positioned adjacent to the sides of the weight-support portion 3108 inside of the weight plate cavity 3300. The support plates 3502 comprises openings that align with the plurality of apertures 3110 of the weight-support portion 3108. The support plates 3502 are configured to provide additional support to the weight-support portion 3108 when coupling the plurality of weight plates 3104 to the weight-support portion 3108.

[0157] Now referring to FIG. 36 is a perspective view of the weight plate base 3122 including the anchor plate 3310. The anchor plate an opening or cavity 3602 that extends through a bottom side of the anchor plate 3310 and across the anchor plate 3310. The cavity 3602 is configured to receive the locking pin 3106 to couple the anchor plate 3310 including the weight plate base 3122 to the adjustable weightlifting device 3102. The anchor plate 3310 also includes protrusions 3604 configured to engage with an adjacent one of the plurality of weight plates 3104.

[0158] Now referring to FIGS. 37 and 38 are a cross-sectional view and a perspective view of the weight plate base 3122. The weight plate base 3122 includes protrusions 3702 shaped similarly to the protrusions 3604 of the anchor plate 3310. The protrusions 3702 are positioned on the raised base 3308 and are configured to engage with or contact a bottom side of the anchor plate 3310. The weight plate base 3122 includes fasteners or screws 3704. The screws 3704 are configured to engage with or secure the weight plate base 3122 to anchor plate 3310.

[0159] Now referring to FIGS. 39 and 40 are a top perspective view and a bottom perspective view of one of the plurality of weight plates 3104. Similar to the plurality of weight plates 2804, the plurality of weight plates 3104 include protrusions 3902 positioned on a top side of each of the plurality of weight plates 3104 and recesses 4002 positioned on the bottom side of each of the adjustable weightlifting device 3102. The recesses 4002 are configured to engage with protrusions 3902 of the adjacent one of the plurality of weight plates 3104. Also shown in FIG. 39, the plurality of weight plates 3104 include, and in some embodiments the weight plate base 3122 also includes, notches 3904. The notches 3904 are shaped to be complimentary to the weight-support portion 3108. As such, the plurality of weight plates 3104 and the weight plate base 3122 fit within the weight plate cavity 3300 with minimal or marginal space between the plurality of weight plates 3104 and the weight-support portion 3108 and / or the housing pieces 3120.

[0160] Now referring to FIGS. 41-45, is the adjustable weightlifting system 4100 including the adjustable weightlifting deice 4102 according to another embodiment. As shown in FIG. 41, the exterior of the adjustable weightlifting deice 4102 is substantially similar to the adjustable weightlifting device 3102. For example, the adjustable weightlifting deice 4102 includes the weight-support portion 2808 including the curved portion 2812. However, as shown in FIG. 42, the weight-support portion 2808 of the adjustable weightlifting deice 4102 does not include a base portion, such as the base portion 2814. The adjustable weightlifting deice 4102 also includes the handle 2816 coupled to and extending from the curved portion 2812. The adjustable weightlifting deice 4102 also includes the first weight housing piece 2822 that, along with the weight-support portion 2808, define the weight plate cavity 2826.

[0161] As shown in FIG. 42, unlike the adjustable weightlifting device 2802, the adjustable weightlifting deice 4102 does not in include the support mechanism 3302 nor the support plates 3502. Instead, the adjustable weightlifting deice 4102 includes protrusions 4202 coupled to an interior surface of the curved portion 2812 (e.g., a surface facing the weight plate cavity 2826, etc.). The plurality of weight plates 4104 are positioned within the weight plate cavity 2826 such that a top, or uppermost, one of the plurality of weight plates 4104 touches or comes into contact with the protrusions 4202 stabilizing or minimizing movement of the plurality of weight plates 4104 within the weight plate cavity 2826. According to this embodiment, the plurality of weight plates 4104 includes or defines a second opening or cavity, substantially similar to the cavity 3602, on a top side of the weight plate 4104. For example, as shown in FIG. 43, the weight plate 4104 defines a cylindrical cavity on a top side of the weight plate 4104 aligned with the cavity 3602 positioned on the bottom side of the weight plate 4104. For example, the second opening or cavity is configured to guide the locking pin 4106 into the apertures (e.g., apertures 3110, etc.) defined through the weight-support portion 2808. For example, the if a user intends to lift the adjustable weightlifting deice 4102 with no additional weight (e.g., no plurality of weight plates 4104 coupled to the weight-support portion 2808, etc.), then the second cavity on a top side of an uppermost one of the plurality of weight plates 4104 is configured to guide the locking pin 4106 into an uppermost one of the apertures 3110. As shown in FIG. 43, the adjustable weightlifting deice 4102 can include a base 4124 or a tray in which the adjustable weightlifting deice 4102 may be stored on.

[0162] As shown in FIG. 42-45, the apertures 3110 of the weight-support portion 3108 are positioned such that the locking pin head 4108 of the locking pin 4106 extends outward from the weight-support portion 3108. According to this embodiment, the locking pin head 4108 of the locking pin 4106 includes a magnet that causes the locking pin head 4108 to attract or be pulled towards the weight-support portion 3108 further securing the locking pin 4106 within the aperture 3110. As shown in FIG. 45, according to this embodiment, the locking pin 4106 does not include a release button for a ball lock mechanism. Instead, the locking pin 4106 as shown in FIG. 45 is configured to friction fit within an aperture of one of the plurality of weight plates 4104.

[0163] Now referring to FIGS. 46-52, is the adjustable weightlifting system 4500 including the adjustable weightlifting device 4502 according to another embodiment. The 4500 is substantially similar to the embodiment of the adjustable weightlifting system 100 as shown in FIGS. 1 and 2 as described in more detail below.

[0164] The adjustable weightlifting device 4502 includes a handlebar 4504, a plurality of weight plates 4506, and a locking pin 4508. The handlebar 4504 is similar to the handlebar 104. The handlebar 4504 includes the handgrip portion 302 and the weight-support portions 304, 306. The handgrip portion 302 is separated from the weight-support portions 304, 306 by the separation plates 4522. As shown in FIGS. 46 and 47, unlike the separation plates 122 of the handlebar 104 (e.g., as shown in FIGS. 1 and 2), the separation plates 4522 extend substantially perpendicular to the handgrip portion 302. As such, the plurality of weight plates 4506 are coupled to the weight-support portions 304, 306 such that the plurality of weight plates 4506 are positioned substantially perpendicular to the weight-support portions 304, 306 and the handgrip portion 302. For example, the plurality of weight plates 4506 are coupled to or oriented perpendicular to the weight-support portions 304, 306 when coupled to the handlebar 4504.

[0165] The adjustable weightlifting system 4500 further includes the tray 124. According to this embodiment, the tray 124 includes guides 4510 and a smooth bottom surface 4512 (e.g., substantially smooth, ribless, etc.) surface for receiving the plurality of weight plates 4506 for storage. As shown in FIG. 46, similar to the plurality of weight plates 4506 being coupled to the handlebar 4504 in an orientation substantially perpendicular to the weight-support portions 304, 306, the plurality of weight plates 4506 are stored within the tray 124 in a substantially perpendicular orientation. As shown in FIG. 46, the guides 4510 are coupled to and extend from the side walls of the tray 124. The guides 4510 are tapered such that an end opposite the end of the guides 4510 coupled to the sides walls of the tray 124 is thinner than the end coupled to the side walls. The guides 4510 are configured to facilitate guiding the adjustable weightlifting device 4502 including the selected plurality of weight plates 4506 into the tray 124 for storage. Further, the guides 4510 are configured to support or hold the non-selected or non-coupled plurality of weight plates 4506 in an upright, vertical (e.g., perpendicular to a base of the tray 124, etc.) position within the tray 124 while the adjustable weightlifting device 4502 is in use.

[0166] As shown in FIG. 48, some embodiments of the adjustable weightlifting system 4500 are configured to accommodate less weight plates 4506. For example, the handlebar 4504 of the adjustable weightlifting system 4500 shown in FIG. 48 has a less length than the handlebar 4504 of FIGS. 46-47. The handlebar 4504 may be configured to couple four weight plates 4506 such that the adjustable weightlifting system 4500 weighs a total of about twenty-five pounds. In other embodiments, the adjustable weightlifting system 4500 may include a handlebar 4504 that is longer or has a greater length than the handlebar 4504 of FIGS. 46-47, such that the 4504 can accommodate coupling a great amount of weight or number of weight plates 4506 to the adjustable weightlifting system 4500.

[0167] Now referring to FIGS. 49-52 are various views of one of the plurality of weight plates 4506 of the adjustable weightlifting system 4500 according to one embodiment. FIGS. 49 and 50 are rear and front perspective view of a weight plate 4506. FIG. 51 is a side view of a two of the plurality of weight plates 4506 engaging with one another. FIG. 52 illustrates an end plate of the plurality of weight plates 4506. As shown in FIG. 49, the side of the plurality of weight plates 4506 shown is a rear side 4802 or a side that faces away from the handgrip portion 302 when coupled to the adjustable weightlifting system 4500. Similar to the weight plate 106, the weight plate 4506 defines an indent 4804 substantially similar to the indent 602. The indent 4804 is substantially trapezoidal in shape. For example, the indent 4804 includes a first side 4810 and second sides 4812 that extend at an angle from the first side 4810.

[0168] Each of the plurality of weight plates 4506 define a passage 4814 positioned on the rear side 4802 of the weight plate 4506. The passage 4814 is substantially similar to the passage 110. The passage 4814 is substantially cylindrical in shape and configured to receive the locking pin 4508 to couple the selected weight plate 4506 and weight plates 4506 positioned successively inward from the selected weight plate 4506 toward the handgrip portion 302 to the weight-support portions 304, 306 of the handlebar 4504.

[0169] As shown in FIG. 49, each of the plurality of weight plates 4506 define a cutout 4816 positioned in the bottom or lower half of the plurality of weight plates 4506. The cutout 4816 is an opening that extends completely through the weight plate 4506.

[0170] Each of the plurality of weight plates 4506 also defines a recess4818. The recess 4818 is positioned on a bottom edge of the rear side 4802 of the weight plate 4506 below the cutout 4816. The recess 4818 is configured to receive a protrusion, such as protrusion 4904, as described in more detail below. The recess 4818 is shaped complementary to the protrusion 4904. AS shown in FIG. 49, the recess 4818 is substantially trapezoidal with curved edges. In other embodiments, the recess 4818 may comprise another shape, such as a rectangle, a square, etc.

[0171] Now referring to FIG. 50, is a perspective view of a front side 4902 of one of the plurality of weight plates 4506 according to one embodiment. The weight plate 4506 includes the protrusion 4904 that extends from a bottom edge of the protrusion 4904 of the weight plate 4506. According to this embodiment, the protrusion 4904 is substantially trapezoidal in shape with rounded edges. The protrusion 4904 is configured to be received by the recess 4818 of an inwardly-adjacent one of the plurality of weight plates 4506 (e.g., one of the weight plates 4506 positioned inward towards the handgrip portion 302 of the adjustable weightlifting system 4500, etc.). The protrusion 4904 engages with or contacts the walls of the recess 4818 of an inwardly-adjacent one of the plurality of weight plates 4506 when a user grabs the handgrip portion 302 of the handlebar 4504 removing the adjustable weightlifting device 4502 from the tray 124. For example, a selected one of the plurality of weight plates 4506 receives the locking pin 4508 such that the locking pin 4508 is positioned within the passage 4814 and the selected weight plate 4506 is coupled to the weight-support portions 304, 306 via the locking pin 4508. Then when the user engages the adjustable weightlifting system 4500, such as grabs onto the handgrip portion 302 and removes the adjustable weightlifting device 4502 from the tray 124, the protrusion 4904 of the weight plate 4506 coupled to the weight-support portions 304, 306 via the locking pin 4508 engages with the recess 4818 of the weight plate 4506 inwardly-adjacent to the selected one of the plurality of weight plates 4506 (See FIG. 51). Each protrusion 4904 of each inwardly-adjacent weight plate 4506 engages with, or grabs, onto the recess 4818 of the next successively inward weight plate 4506 of the plurality of weight plates 4506. For example, the protrusion 4904 engaging with the inwardly-adjacent recess 4818 couples the inwardly-adjacent plurality of weight plates 4506 to the adjustable weightlifting device 4502. Each protrusion 4904 engaging with each recess 4818 of each of the plurality of weight plates 4506 is similar to the mechanism of each of the projections 620, 622 engaging with each of the first projection opening 616 and second projection opening 618 of each of the plurality of weight plates 106.

[0172] Now referring to FIG. 52, is a rear side view of one endplate 5102 of the plurality of weight plates 4506. The endplate 5102 is a weight plate positioned furthest from the handgrip portion 302 of the handlebar 4504. The one endplate 5102 includes an endplate cover 5104. The endplate cover 5104 covers at least a portion of the passage 4814.

[0173] Now referring to FIG. 53, is another adjustable weightlifting system 5200 including a first adjustable weightlifting device 5202, a second adjustable weightlifting device 5204, the plurality of weight plates 4506, and the locking pin 4508. Each of the first adjustable weightlifting device 5202 and the second adjustable weightlifting device 5204 include the handgrip portion 302 and the weight-support portions 304, 306 and are configured to couple the plurality of weight plates 4506 to the weight-support portions 304, 3064802 for weightlifting.

[0174] The first adjustable weightlifting device 5202 includes a straight bar handlebar 5206 (e.g., an Olympic weightlifting bar, a squat bar, etc.). For example, the handgrip portion 302 of the straight bar handlebar 5206 is elongated (e.g., has a greater length than the handlebar 4504 of the adjustable weightlifting device 4502, etc.). First adjustable weightlifting device 5202 may be used for a variety of exercises including back squats, front squats, and deadlifts.

[0175] The second adjustable weightlifting device 5204 includes a curl bar handlebar 5208. The curl bar handlebar 5208 is curved or bent and can be used for various exercises including, but not limited to, bicep curls.

[0176] As shown in FIG. 53, the first adjustable weightlifting device 5202 and the second adjustable weightlifting device 5204 of the adjustable weightlifting system 5200 are interchangeable such that both the straight bar handlebar 5206 and the curl bar handlebar 5208 can be used with the same set of weight plates 4506. Furthermore, the first adjustable weightlifting device 5202 and the second adjustable weightlifting device 5204 can be interchangeable with the adjustable weightlifting device 4502 such that the same set of plurality of weight plates 4506 can be used with each of the handlebar 4504, the straight bar handlebar 5206, and the curl bar handlebar 5208.

[0177] As shown in FIG. 53, the adjustable weightlifting system 5200 includes a tray 5210. The tray 5210 is configured to store or hold the plurality of weight plates 4506, the first adjustable weightlifting device 5202, and the second adjustable weightlifting device 5204. The tray 5210 includes a first weight storage bin 5212 and a second weight storage bin 5214 coupled via connecting bards or connectors 5216. The first adjustable weightlifting device 5202 is positioned or stored in the 5214 tray 5210 such that the weight-support portions 304, 306 are positioned within the bar slot 608 of each of the plurality of weight plates 4506 and the straight bar handlebar 5206 extends between the first weight storage bin 5212 and the second weight storage bin 5214.

[0178] The adjustable weightlifting system 5200 also includes a storage rack 5218. The storage rack 5218 is coupled to and extends from each of the first weight storage bin 5212 and the second weight storage bin 5214. According to this embodiment, the storage rack 5218 includes two hook-like structures that extend outward from each of the first weight storage bin 5212 and the second weight storage bin 5214 and receive a portion of the curl bar handlebar 5208 near, or adjacent to, the separation plates 122. In some embodiments, the curl bar handlebar 5208 of the second adjustable weightlifting device 5204 may be stored within the tray 5210 and the straight bar handlebar 5206 of the first adjustable weightlifting device 5202 may be stored in the storage rack 5218.

[0179] The terms “coupled,”“connected,” and the like, as used herein, mean the joining of two members directly or indirectly to one another. Such joining may be stationary (e.g., permanent) or moveable (e.g., removable or releasable). Such joining may be achieved with the two members or the two members and any additional intermediate members being integrally formed as a single unitary body with one another or with the two members or the two members and any additional intermediate members being attached to one another.

[0180] References to “or” may be construed as inclusive so that any terms described using “or” may indicate any of a single, more than one, and all of the described terms. References to at least one of a conjunctive list of terms may be construed as an inclusive OR to indicate any of a single, more than one, and all of the described terms. For example, a reference to “at least one of ‘A’ and ‘B’” can include only ‘A’, only ‘B’, as well as both ‘A’ and ‘B’. Such references used in conjunction with “comprising” or other open terminology can include additional items.

[0181] References herein to the positions of elements (e.g., “top,”“bottom,”“above,”“below,” etc.) are merely used to describe the orientation of various elements in the FIGURES. It should be noted that the orientation of various elements may differ according to other exemplary embodiments, and that such variations are intended to be encompassed by the present disclosure.

[0182] The construction and arrangement of the elements of the systems and methods of the selectable clamp for a weightlifting handlebar for an adjustable weight set as shown in the exemplary embodiments are illustrative only. Although only a few embodiments of the present disclosure have been described in detail, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied.

[0183] Additionally, the word “exemplary” is used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments or designs (and such term is not intended to connote that such embodiments are necessarily extraordinary or superlative examples). Rather, use of the word “exemplary” is intended to present concepts in a concrete manner. Accordingly, all such modifications are intended to be included within the scope of the present disclosure. Other substitutions, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the preferred and other exemplary embodiments without departing from the scope of the appended claims.

[0184] Where technical features in the drawings, detailed description or any claim are followed by reference signs, the reference signs have been included to increase the intelligibility of the drawings, detailed description, and claims. Accordingly, neither the reference signs nor their absence have any limiting effect on the scope of any claim elements.

[0185] Other substitutions, modifications, changes and omissions may also be made in the design, operating conditions and arrangement of the various exemplary embodiments without departing from the scope of the present invention. For example, any element (e.g., selectable clamp, weightlifting handlebar, etc.) disclosed in one embodiment may be incorporated or utilized with any other embodiment disclosed herein. Also, for example, the order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. Any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating configuration, and arrangement of the preferred and other exemplary

Examples

Embodiment Construction

[0064]A selectable clamp for a weightlifting handlebar provides a hassle-free solution for using an adjustable weight apparatus with a plurality of different handlebars.

[0065]Referring generally to the FIGURES, disclosed herein is an adjustable weightlifting system 100 for weightlifting that generally includes an adjustable weightlifting device 102 that includes a handlebar 104, a plurality of weight plates 106, and a locking pin 108. The adjustable weightlifting device 102 facilitates the use of varying amounts of weight with the same device. A user can select an amount of weight by inserting the locking pin 108 into one of a plurality of passages 110 (e.g., cavities, etc.) defined by one of the plurality of weight plates 106 coupling, or locking, the selected weight plate 106 to the handlebar 104. Once the locking pin 108 is secured to one of the plurality of weight plates 106, the user can then lift the adjustable weightlifting device 102 and in doing so, the selected weight plat...

BACKGROUND

[0001] The present disclosure relates generally to an adjustable weightlifting device, as well as methods of using such adjustable weightlifting device.

[0002] Clamps for weightlifting handlebars are commonly used to secure weights, such as metal or plastic weight plates, to a handlebar. The desired amount of weight is placed onto each end of the handlebar. A clamp is then slid onto each end of the handlebar. Once each of the handlebar clamps is placed against the weight plates, both clamps are secured, or fixed, in place. The clamps prevent the weight plates from sliding off the handlebar while the user is completing various exercises.

[0003] Adjustable weight apparatuses are used for various strength exercises. Adjustable weight apparatuses allow the user to have a variety of weight options for the use with a single weightlifting device, such as a dumbbell handlebar or a kettlebell. Adjustable weight apparatuses also save space. The user can have a variety of weight options, such as dumbbell weight options or kettlebell options, without needing space to store a plurality of full dumbbells and kettlebells. However, current adjustable weight apparatuses comprise complicated systems to engage and release weight plates and are only usable with a singular type of handlebar. Therefore, the current adjustable weight apparatuses comprise components that are subject to repeated wear and tear and the user is limited to exercises involving the single handlebar type that is compatible with the adjustable weight apparatus.

[0004] It would be advantageous to provide an adjustable weightlifting system that engages adjacent weight plates (e.g., inwardly adjacent, outwardly adjacent, etc.) and is compatible with a variety of handlebars.SUMMARY

[0005] One embodiment of the present disclosure relates to a method of adjusting a weightlifting device. The method includes inserting a first releasable locking pin into a first weight plate on a first side of a handlebar to lock the first weight plate to the handlebar, inserting a second releasable locking pin into a second weight plate on a second side of the handlebar to lock the second weight plate to the handlebar, lifting the handlebar to lift the locked first weight plate and the locked second weight plate, and engaging inwardly adjacent weight plates progressively from each of the locked first and second weight plates toward a central handgrip on the handlebar or a second direction away from the central handgrip on the handlebar.

[0006] Another embodiment relates to an adjustable weightlifting device. The adjustable weightlifting device includes a handlebar with a weight-support portion and a handgrip portion, and a plurality of weight plates disposed on the weight-support portion. The adjustable weightlifting device also includes a locking pin releasably engaged with one of the weight plates and the weight-support portion to lock the one of the weight plates to the handlebar, and one or more projections on each of the plurality of weight plates to successively engage each of any others of the plurality of weight plates disposed between the locked one of the weight plates and handgrip portion or between the locked one of the weight plates and an end of the handlebar opposite the handgrip portion.

[0007] Another embodiment relates to an adjustable weightlifting device. The adjustable weightlifting device includes a bar having a handgrip portion, a first weight-support portion, and a second weight-support portion. Each weight-support portion has a plurality of openings. The weightlifting device also includes a plurality of weight plates disposed on each of the first and second weight-support portions, and each weight plate has a passage aligned with one of the openings. The weightlifting device further includes a first locking pin releasably engageable with a first selected weight plate and the first weight-support portion, and a second locking pin releasably engageable with a second selected weight plate and the second weight-support portion. The weightlifting device also includes one or more projections on each of the weight plates. The projections are configured to engage with other adjacent weight plates coupling the adjacent weight plates to the bar.

[0008] Another embodiment relates to an adjustable weightlifting device. The adjustable weightlifting device includes a bar having a handgrip portion, a first weight-support portion, and a second weight-support portion. Each weight-support portion has a plurality of openings. The adjustable weightlifting device also includes a plurality of weight plates disposed on each of the first and second weight-support portions. Each weight plate has a passage aligned with one of the openings. The adjustable weightlifting device also includes a first locking pin releasably engageable with a first selected weight plate and the first weight-support portion. The adjustable weightlifting device includes a second locking pin releasably engageable with a second selected weight plate and the second weight-support portion. The adjustable weightlifting device also includes one or more projections on each of the weight plates. The projections are configured to engage with other adjacent weight plates coupling the adjacent weight plates to the bar.

[0009] Yet another embodiment relates to an adjustable weightlifting device. The adjustable weightlifting device includes a handle including a handgrip portion. The adjustable weightlifting device includes a weight-support portion coupled to the handle. The adjustable weightlifting device includes a plurality of weight plates disposed on the weight-support portion. The adjustable weightlifting device also includes a locking pin releasably engaged with one of the weight plates and the weight-support portion to lock the one of the weight plates to the handlebar.

[0010] Yet another embodiment relates to a method of adjusting an adjustable weightlifting device. The method includes inserting a releasable locking pin into a first weight plate coupling the first weight plate to the weightlifting device, lifting the weightlifting device to lift the locked first weight plate, and engaging other adjacent weight plates progressively from the locked first weight plates toward a handle of the weightlifting device.BRIEF DESCRIPTION OF THE DRAWINGS

[0011] FIG. 1 is a perspective view of an adjustable weightlifting device according to one embodiment;

[0012] FIG. 2 is a front view of the adjustable weightlifting device according to the embodiment of FIG. 1;

[0013] FIG. 3 is a front view of a handlebar of the adjustable weightlifting device according to the embodiment of FIG. 1;

[0014] FIG. 4 is a side perspective view of the handlebar according to the embodiment of FIG. 3;

[0015] FIG. 5 is another front view of the handlebar according to the embodiment of FIG. 3;

[0016] FIG. 6 is a side view of one of a plurality of weight plates of the adjustable weightlifting device according to the embodiment of FIG. 1;

[0017] FIG. 7 is a side perspective view of the weight plate according to the embodiment of FIG. 6;

[0018] FIG. 8 is another side perspective view of the weight plate according to the embodiment of FIG. 6;

[0019] FIG. 9 is a side view of another one of a plurality of weight plates of the adjustable weightlifting device according to the embodiment of FIG. 1;

[0020] FIG. 10 is a side perspective view of the weight plate according to the embodiment of FIG. 9;

[0021] FIG. 11 is side view of a plurality of weight plates according to the embodiments of FIG. 6 and FIG. 9;

[0022] FIG. 12 is a side view of a locking pin for the adjustable weightlifting device of FIG. 1 according to one embodiment;

[0023] FIG. 13 is a side view of the adjustable weightlifting device according to the embodiment of FIG. 1;

[0024] FIG. 14 is a perspective view of a selecting a weight for the adjustable weightlifting device according to one embodiment;

[0025] FIG. 15 is a perspective view of engaging a plurality of weight plates of the adjustable weightlifting device according to the embodiment of FIG. 14;

[0026] FIG. 16 is a side perspective view of an adjustable weightlifting system including a storage rack according to one embodiment;

[0027] FIG. 17 is an expanded side perspective view of the adjustable weightlifting system including the storage rack according to the embodiment of FIG. 16;

[0028] FIG. 18 is a top perspective view of a portion of the storage rack according to the embodiment of FIG. 16;

[0029] FIG. 19 is a top perspective view of a portion of an adjustable weightlifting system according to another embodiment;

[0030] FIG. 20 is a front perspective view of an adjustable weightlifting device according to another embodiment;

[0031] FIG. 21 is another front perspective view of the adjustable weightlifting device according to the embodiment of FIG. 20;

[0032] FIG. 22 is another front perspective view of a portion of the adjustable weightlifting device according to the embodiment of FIG. 20;

[0033] FIG. 23 is a side view of the adjustable weightlifting device according to the embodiment of FIG. 20;

[0034] FIG. 24 is a bottom view of the adjustable weightlifting device according to the embodiment of FIG. 20;

[0035] FIG. 25 is a bottom perspective view of a portion of the adjustable weightlifting device according to the embodiment of FIG. 20;

[0036] FIG. 26 is a top view of a weight plate of the adjustable weightlifting device according to the embodiment of FIG. 20;

[0037] FIG. 27 is a side view of the weight plate of the adjustable weightlifting device according to the embodiment of FIG. 26;

[0038] FIG. 28 is an expanded view of an adjustable weightlifting device according to another embodiment

[0039] FIG. 29 is an expanded view of the adjustable weightlifting device according to the embodiment of FIG. 28; and

[0040] FIG. 30 is an expanded view of a portion of the adjustable weightlifting device according to the embodiment of FIG. 28;

[0041] FIG. 31 is a perspective view of an adjustable weightlifting device according to another embodiment;

[0042] FIG. 32 is a front view of an adjustable weightlifting device according to the embodiment of FIG. 31;

[0043] FIG. 33 is a front view of a portion of the adjustable weightlifting device according to the embodiment of FIG. 31;

[0044] FIG. 34 is a perspective view of a portion of the adjustable weightlifting device according to the embodiment of FIG. 31;

[0045] FIG. 35 is a front view of a handle of the adjustable weightlifting device according to the embodiment of FIG. 31;

[0046] FIG. 36 is a perspective view of the handle of the adjustable weightlifting device according to the embodiment of FIG. 35;

[0047] FIG. 37 is a perspective view of a base of the adjustable weightlifting device according to the embodiment of FIG. 31;

[0048] FIG. 38 is a front view of a portion of the base of the adjustable weightlifting device according to the embodiment of FIG. 37;

[0049] FIG. 39 is a perspective view of a portion of the base of the adjustable weightlifting device according to the embodiment of FIG. 37;

[0050] FIG. 40 is a perspective view of a weight plate of the adjustable weightlifting device according to the embodiment of FIG. 31;

[0051] FIG. 41 is a front view of an adjustable weightlifting device according to another exemplary embodiment;

[0052] FIG. 42 is a front view of a portion of the adjustable weightlifting device according to the embodiment of FIG. 41;

[0053] FIG. 43 is a perspective view of a perspective view of the portion of the adjustable weightlifting device according to the embodiment of FIG. 42;

[0054] FIG. 44 is a perspective view of a portion of the adjustable weightlifting device including a weight housing and support portion according to the embodiment of FIG. 41;

[0055] FIG. 45 is a perspective view of a locking pin of the adjustable weightlifting device according to the embodiment of FIG. 41;

[0056] FIG. 46 is a perspective view of an adjustable weightlifting system including an adjustable weightlifting device and tray according to another exemplary embodiment;

[0057] FIG. 47 is a front view of the adjustable weightlifting system including the adjustable weightlifting device and the tray according to the embodiment of FIG. 46;

[0058] FIG. 48 is a perspective view of the adjustable weightlifting system including the adjustable weightlifting device and the tray according to the embodiment of FIG. 46;

[0059] FIG. 49 is a rear perspective view of a weight plate of the adjustable weightlifting device according to the embodiment of FIG. 46;

[0060] FIG. 50 is a front perspective view of a weight plate of the adjustable weightlifting device according to the embodiment of FIG. 46;

[0061] FIG. 51 is a side view of a plurality of weight plates of the adjustable weightlifting device according to the embodiment of FIG. 46;

[0062] FIG. 52 is a rear view of an end plate and weight plate of the adjustable weightlifting device according to the embodiment of FIG. 46; and

[0063] FIG. 53 is a perspective view of an adjustable weightlifting system including a first adjustable weightlifting device, a second adjustable weightlifting device, and a tray according to another exemplary embodiment.DETAILED DESCRIPTION

[0064] A selectable clamp for a weightlifting handlebar provides a hassle-free solution for using an adjustable weight apparatus with a plurality of different handlebars.

[0065] Referring generally to the FIGURES, disclosed herein is an adjustable weightlifting system 100 for weightlifting that generally includes an adjustable weightlifting device 102 that includes a handlebar 104, a plurality of weight plates 106, and a locking pin 108. The adjustable weightlifting device 102 facilitates the use of varying amounts of weight with the same device. A user can select an amount of weight by inserting the locking pin 108 into one of a plurality of passages 110 (e.g., cavities, etc.) defined by one of the plurality of weight plates 106 coupling, or locking, the selected weight plate 106 to the handlebar 104. Once the locking pin 108 is secured to one of the plurality of weight plates 106, the user can then lift the adjustable weightlifting device 102 and in doing so, the selected weight plate 106 engages with adjacent weight plates 106 (e.g., inwardly adjacent weight plates, outwardly adjacent weight plates, etc.) coupling the adjacent weight plates 106 to the weightlifting device 102 as well. For example, the selected one of the plurality of weight plates 106 engages the weight plate 106 adjacent to the selected one of the plurality of weight plates 106 on a side closest to the handlebar 104. When a user desires to change amount of weight for performing an exercise with the weightlifting device 102, the weightlifting device 102 is set on a surface, or back in a tray, and the locking pin 108 is removed from a first wight plate of the plurality of weight plates 106 to a second weight plate of the plurality of weight plates 106.

[0066] Referring more particularly to FIGS. 1-2, is an exemplary embodiment of the adjustable weightlifting system 100. As shown in FIG. 1, the adjustable weightlifting system 100 includes the weightlifting device 102. According to this embodiment, the weightlifting device 102 is a dumbbell. In other embodiment, the weightlifting device 102 may be a barbell device, a curl bar device, a kettlebell or any other weightlifting device.

[0067] The weightlifting device 102 includes the handlebar 104. According to this embodiment, the handlebar 104 is a straight grip handlebar. The handlebar 104 is configured to be gripped by the user with at least one hand. The handlebar 104 may include at least a portion (e.g., 2 inches, 4 inches, etc.) of texturization (e.g., knurling, etc.). In other embodiments, the portion of texturization may be a separate component coupled to the handlebar 104. The portion of texturization is configured to aid the user in gripping the handlebar 104.

[0068] The weightlifting device 102 also includes the plurality of weight plates 106. The adjustable weightlifting system 100 may include any number of weight plates 106. Each of the plurality of weight plates 106 is a predefined amount of weight. For example, each of the plurality of weight plates 106 may be 5 pounds. In other embodiments, each of the weight plates 106 may be a different weight (e.g., 2 pounds, 10 pounds, etc.)

[0069] The weightlifting device 102 also includes at least one locking pin 108 (e.g., a releasable locking pin, etc.). As shown in FIGS. 1-3, the adjustable weightlifting system 100 includes two locking pins (e.g., a first locking pin 108 and a second locking pin 108, etc.). The locking pin 108 is selectively inserted into one of the plurality of weight plates 106 and releasably couples at least one weight plate 106 to the weightlifting device 102.

[0070] Each of the plurality of weight plates 106 defines a passage 110 described in further detail below. The passages 110 are configured to receive the locking pin 108 releasably coupling a desired amount of weight to the handlebar 104.

[0071] The plurality of weight plates 106 are positioned (e.g., disposed, etc.) on each end of the handlebar 104 (e.g., a first set 112 of the plurality of weight plates 106 on a first side 114, and a second set of the plurality of weight plates 106 on a second side 118, etc.). Each of the plurality of weight plates 106 comprises a defined amount of weight (e.g., 2 pounds, 5 pounds, 10 pounds, etc.). The plurality of weight plates 106 are configured to be selectively coupled to the handlebar 104 of the weightlifting device 102, as described in more detail below. As shown in FIG. 1, the plurality of weight plates 106 are configured to be stacked vertically adjacent to each other and coupled to the weightlifting device 102 for performing weighted exercises with the weightlifting device 102. According to this embodiment, the first set 112 of weight plates 106 is positioned on the first side 114 of the weightlifting device 102 and the second set 116 of the plurality of weight plates 106 is positioned on the second side 118 of the weightlifting device 102.

[0072] As shown in FIG. 1, the handlebar 104 also includes a first separation plate 120 positioned on the first side 114 and a second separation plate 122 positioned on the second side 118 of the adjustable weightlifting system 100. Each of the first separation plate 120 and the second separation plate 122 are positioned adjacent to the inner most weight plate 106 of each of the first set 112 and the second set 116 of the plurality of weight plate 106. The first separation plate 120 and the second separation plate 122 are define the first side 114 and the second side 118 of the adjustable weightlifting system 100. For example, extending outward from the first separation plate 120 (e.g., away from a center of the adjustable weightlifting system 100, etc.) defines the first side 114, and extending outward from the second separation plate 122 (e.g., away from a center of the adjustable weightlifting system 100, etc.) defines the second side 118.

[0073] As shown in FIGS. 1 and 2, the adjustable weightlifting system 100 also includes a tray 124 (e.g., a storage tray, etc.). The tray 124 is configured to store the weightlifting device 102 when not in use. For example, the tray 124 is configured to keep the weightlifting device 102 in an upright position or a stationary position when not being used. Further, when the weightlifting device 102 is in use (e.g., a user has lifted the weightlifting device 102 out of the tray 124, etc.), the tray 124 is configured store the plurality of plates not engaged with the weightlifting device 102 (e.g., weight plates 106 positioned outwardly from the selected weight plate 106, etc.). For example, the tray 124 is configured to hold weight plates that are not engaged with the weightlifting device 102 in an upright (e.g., vertical position, etc.). By holding the weight plates that are not engaged with the weightlifting device 102 in an upright position, the weightlifting device 102 can be easily repositioned with the tray 124 for adjusting the amount of weight engaged with the handlebar 104 of the weightlifting device 102.

[0074] Now referring to FIG. 2, is a front view of the adjustable weightlifting system 100. As shown in FIG. 2, all of the plurality of weight plates 106 (e.g., both the first set 112 and the second set 116 of the plurality of weight plates 106, etc.) are engaged (e.g., coupled, etc.) with the handlebar 104 of the weightlifting device 102, and the weightlifting device 102 is lifted (e.g., positioned a distance above or away from, etc.) the tray 124.

[0075] The plurality of weight plates 106 are positioned at an angle relative to the handlebar 104. For example, the plurality of weight plates 106 are positioned (e.g., angled, etc.) outward at an angle a in a range between three to five degrees relative to an axis A1 that is perpendicular to a center axis Ac extending along the length of the handlebar 104. For example, the first set 112 of the plurality of weigh plates 106 are positioned at an angle rotated counterclockwise from the axis A1, while the second set 116 of the plurality of weight plates 106 are positioned at an angle rotated clockwise from the axis A1. According to this embodiment, the angle is preferably about 3-4 degrees.

[0076] Now referring to FIGS. 3-5 is an exemplary embodiment of the handlebar 104 as shown in FIGS. 1-2. According to this embodiment, the handlebar 104 is a dumbbell handlebar. In other embodiments, the handlebar 104 may be a straight bar, a curled bar, or any other type of weightlifting bar. For example, the adjustable weightlifting system 100 may include a plurality of handlebars 104 such that various

[0077] The handlebar 104 includes a handgrip portion 302 (e.g., a central handgrip, etc.) and at least one weight-support portions 304, 306 (e.g., a first weight-support portion 304 and a second weight-support portion 306, etc.). According to this embodiment, the handgrip portion 302 is positioned between the first weight-support portion 304 and the second weight-support portion 306. For example, the handgrip portion 302 may be centered along the handlebar 104. As previously described the handgrip portion 302 may include a portion of texturization (e.g., knurling, etc.) configured to facilitate a user's grip on the handlebar 104.

[0078] The first weight-support portion 304 is positioned on the first side 114 of the weightlifting device 102, and the second weight-support portion 306 is positioned on the second side 111 of the weightlifting device 102. The first weight-support portion 304 is configured to support at least a portion of the first set 112 of the plurality of weight plate 106 (e.g., one weight plate, two weight plates, five weight plates, etc.) to the weightlifting device 102. Similarly, the second weight-support portion 306 is configured to support at least a portion of the second set 116 of the plurality of weight plates 106 (e.g., one weight plate, two weight plates, five weight plates, etc.) to the weightlifting device 102.

[0079] The handlebar 104 also includes the separation plates 120, 122 (e.g., the first separation plate 120 and the second separation plate 122, etc.). The first separation plate 120 is positioned between the first weight-support portion 304 and the handgrip portion 302. The second separation plate 122 is positioned between the second weight-support portion 306 and the handgrip portion 302. The separation plates 120, 122 are configured to separate the plurality of weight plates 106 engaged with the weightlifting device 102 from the handgrip portion 302. For example, the separation plates 120, 122 define a grip cavity 308 preventing the weight plates 106 from leaning inwards into the grip cavity 308 toward the handgrip portion 302.

[0080] Each of the first weight-support portion 304 and the second weight-support portion 306 define a plurality of openings 310. The plurality of openings 310 are configured to receive a locking pin, such as locking pin 108. For example, the locking pins 108 are received by a first end of the openings 310 and extend through a second end of the openings 310 such that the locking pins 108 extend though one of the first weight-support portion 304 or the second weight-support portion 306.

[0081] As shown in FIG. 3, the openings 310 are positioned on a bottom portion 312 of the weight-support portions 304, 306, such that the openings are positioned along a center axis Ac of the handlebar 104. The weight-support portions 304, 306 also include a top portion 314 positioned above (e.g., adjacent to, etc.) the bottom portion 312. When the weightlifting device 102 is in use, the top portion 314 is positioned within a portion of the weight plates 106.

[0082] As shown in FIG. 4, the weight-support portions 304, 306 also include handlebar end caps 402, 404. The handlebar end caps 402, 404 couple the bottom portions 312 to the top portions 314. The handlebar end caps 402, 404 are configured to close off (e.g., seal, etc.) the ends of the handlebar 104.

[0083] As shown in FIG. 5, the separation plates 120, 122 are positioned at an angle (e.g., the angle a, etc.) relative to the handlebar 104 (e.g., a center axis Ac of the handlebar 104, an axis A1 perpendicular to the handlebar 104, etc.). For example, the angle may be the angle a, such that the angle is in a range between three to five degrees relative to the axis A1 such that the separation plates 120, 122 are positioned parallel to the weight plates 106. As such, a distance between the first separation plate 120 and the second separation plate varies along an axis perpendicular to the handgrip portion 302. For example, a first separation plate distance DS1 (e.g., a distance from first edges of the separation plates, a distance from top edges of the separation plates, etc.) is greater than a second separation plate distance DS2 (e.g., a distance from second edges of the separation plates, a distance from bottom edges of the separation plates, etc.).

[0084] Now referring to FIGS. 6-11 are exemplary embodiments of the plurality of weight plates 106 of the adjustable weightlifting system 100. As shown in FIGS. 6 and 7, the plurality of weight plates 106 includes at least a first weight plate 600 and a second weight plate 900.

[0085] Each of the plurality of weight plates 106 (e.g., the first weight plate 600, the second weight plate 900, etc.) includes an indent 602. According to this embodiment, the indent 602 includes a first side 604 and two second sides 606 positioned at an angle (e.g., an angle b, etc.) relative to the first side 604 (e.g., the indent 602 is substantially trapezoidal in shape, etc.). In other embodiments, the indent 602 may be a different shape (e.g., square-like, a rectangular cut-out, etc.). The indent 602 is configured to accommodate the locking pin 108. For example, the indent 602 receives a portion of the locking pin 108 as discussed in more detail below. The first side 604 of the indent 602 is in contact with a portion of the locking pin 108 when the locking pin 108 is inserted into the weight plate 106 (e.g., a cavity defined by the weight plate, etc.). The indent 602 allows the locking pin 108 to sit in the indent 602 such that the locking pin 108 protrudes outward from the weight plate 106 less.

[0086] Each of the weight plates 106 defines a bar slot 608. The bar slot 608 is positioned along a vertical plate center axis AVPC and across a horizontal plate center axis AHPC. For example, the bar slot 608 extends from a first edge 610 of the weight plate 106 down toward a center of the weight plate 106 (e.g., extends about one and a half to inches to three inches towards the center of the plate 106, etc.).

[0087] The bar slot 608 includes a curved portion 612 (e.g., semi-circular, etc.). The curved portion 612 is positioned at an end of the bar slot 608 opposite the first edge 610. The curved portion 612 is configured to receive the weight-support portions 304, 306 of the handlebar 104. For example, the weight-support portions 304, 306 rests against the curved portion 612 when the weightlifting device 102 is positioned in the tray 124.

[0088] Each of the weight plates 106 also defines the passage 110 as described above. The passage 110 extends from the indent 602 at an angle across the bar slot 608. For example, the passage 110 extends across each of the vertical plate center axis AVPC and the horizontal plate center axis AHPC. As shown in FIGS. 6-10, the passage 110 extends from an upper quadrant to a lower quadrant of the weight plate 106 defined by the plate center axis AVPC and the horizontal plate center axis AHPC. For example, the passage 110 is defined along a passage center axis APC. The passage center axis APC intersects (e.g., crosses, etc.) each of the vertical plate center axis AVPC and the horizontal plate center axis AHPC. For example, the passage center axis APC may extend at an angle c within a range of between 30 degrees and 60 degrees (e.g., 40 degrees, 45 degrees, 50 degrees, etc.) relative to the horizontal plate center axis AHPC. As shown in FIGS. 6-9, the passage 110 is positioned on an outward side 614 (e.g., a side facing outward from the handgrip portion 302, etc.).

[0089] The passage 110 is configured to receive the locking pin 108. For example, the passage 110 receives the locking pin 108 at the indent 602 and the locking pin 108 extends through the bar slot 608 and the weight-support portions 304, 306 securing the weight plate 106 to the handlebar 104.

[0090] According to this embodiment, the passage 110 is cylindrical in shape, such that an inner surface of passage 110 is curved. In other embodiments, the passage 110 may be defined by a different shape.

[0091] As shown in FIGS. 6-11, the plurality of weight plates 106 include at least one projection 620, 622 (e.g., a first projection 620, a second projection 622, a third projection, etc.). As shown in FIGS. 6-11, the weight plates106 comprise a first projection 620 and a second projection 622. According to this embodiment, the second projection 622 is positioned a distance (e.g., a first distance d1, half an inch, an inch, etc.) away (e.g., along an axis parallel to the horizontal plate axis AHPC, etc.) from the first projection 620. The projections 620, 622 extend at an angle (e.g., within 80 degrees and 100 degrees relative to the weight plate 106, preferably 90 degrees relative to the weight plate 106, etc.) away from an inward side 706 (e.g., a side opposite the outward side 614, etc.). For example, when the weight plates 106 are coupled to the weight-support portions 304, 306 of the handlebar 104, the projections 620, 622 extend towards the handgrip portion 302 (e.g., towards a center of the weightlifting device 102, etc.). According to this embodiment, the projections 620, 622 are configured to engage with an inwardly (e.g., towards the handgrip portion 302, etc.) adjacent weight plate of the plurality of weight plates 106 (e.g., a successively inward adjacent weight plate relative to the handgrip portion 302, etc.) as described in more detail below. In other embodiments, the projections 620, 622 are configured to engage with an outwardly (e.g., away from the handgrip portion 302, etc.) adjacent weight plate of the plurality of weight plates 106 (e.g., a successively outward adjacent weight plate relative to the handgrip portion 302, etc.)

[0092] As shown in FIGS. 6-11, the projections 620, 622 may be cylindrical in shape. According to some embodiments, the projections 620, 622 may be press fit into openings defined by each of the plurality of weight plates 106 (e.g., a first projection opening 616, a second projection opening 618, etc.).

[0093] The projections 620, 622 are configured to engage with the inwardly-adjacent weight plate of the plurality of weight plates 106 such that the inwardly-adjacent weight plate is support by (e.g., lifting up by, etc.) the projections 620, 622. For example, the inwardly-adjacent weight plates of the plurality of weight plates 106 are hung onto the projections 620, 622 of outwardly-adjacent weight plate of the plurality of weight plates 106. For example, each weight plate engages with a progressively (e.g., successively, etc.) inwardly-adjacent weight plate 106. In other embodiments, the projections 620, 622 are configured to engage with the outwardly-adjacent weight plate of the plurality of weight plates 106 in a similar manner such that the outwardly adjacent weight plate is support by (e.g., lifting up by, etc.) the projections 620, 622. Now referring to FIG. 6, is a first weight plate 600 of the plurality of weight plates 106. The first weight plate 600 includes at least one first plate slot 624, 626 (e.g., a first slot 624, a second slot 626, etc.). The first slot 624 is positioned adjacent to the first projection 620. For example, the first slot 624 is positioned laterally adjacent to an outward side of the first projection 620 (e.g., a lateral side away from the vertical center axis AVPC, etc.). Similarly, the second slot 626 is positioned adjacent to an outward side of the second projection 622. For example, a distance (e.g., a second distance d2, etc.) between the first slot 624 and the second slot 626 is greater than (e.g., longer than, etc.) the distance (e.g., the first distance d1, etc.) between the first projection 620 and the second projection 622. The slots 624, 626 are configured to receive projections (e.g., projections 620, 622, etc.) of a weight plate 106 positioned outwardly-adjacent (e.g., adjacent to the first weight plate 600 on a side further from or opposite to the handgrip portion 302 of the handlebar 104, etc.) the to the first weight plate 600. For example, when a weight plate 106 outwardly-adjacent to the first weight plate 600 is engaged with the weight-support portions 304, 306 of the handlebar (e.g., the locking pin 108 is inserted into the passage 110, etc.) the projections 620, 622 of the weight plate 106 outwardly-adjacent to the first weight plate 600 engage with the slots 624, 626 of the first weight plate 600 coupling the first weight plate 600 to the weight-support portions 304, 306 of the handlebar 104.

[0094] The first weight plate 600 also includes at least one protrusion 628, 630. The protrusions 628, 630 (e.g., a first protrusion 628, a second protrusion 630, etc.) are positioned on a second end 632 of the weight plate 600 (e.g., a side opposite the first edge 610, etc.). As shown in FIG. 6, the first protrusion 628 is positioned adjacent to (e.g., along a vertical axis below, etc.) the second projection 622 on the second end 632 (e.g., on a bottom end, etc.) of the weight plate 600. Similarly, the second protrusion 630 is positioned adjacent to (e.g., along a vertical axis below, etc.) the second projection 622 on the second end 632 of the weight plate 600. For example, the first protrusion 628 is positioned about the same distance away from the second protrusion 630 as the distance (e.g., the first distance) that the first projection 620 is positioned from the second projection 622. The protrusions 628, 630 are configured to engage with a portion of the tray 124 as described in more detail below. For example, the protrusions 628, 630 are received by a portion of the tray 124 such that when the protrusions 628, 630 are engage with the tray 124, the protrusions 628, 630 facilitate the weight plate 106, 600 being an upright (e.g., vertical position, etc.) when positioned in the tray 124.

[0095] The weight plate 600 also includes guide surfaces 634, 636 (e.g., a first guide surface 634, a second guide surface 636, etc.) and lateral slot sides 638, 640 (e.g., first lateral slot side 638, second lateral slot side 640, etc.). The guide surfaces 634, 636 and the lateral slot sides 638, 640 define the bar slot 608. Each of the guide surfaces 634, 636 extend from the first edge 610 of the weight plate 600 towards the vertical center axis AVPC to the lateral slot sides 638, 640. The guide surfaces 634, 636 are configured to guide the weight-support portions 304, 306 into the bar slot 608. As shown in FIG. 6, the guide surfaces 634, 636 are positioned at an angle d in a range between 20 degrees to 40 degrees relative to the vertical center axis AVPC.

[0096] Now referring to FIGS. 9 and 10, is a second weight plate 900 of the plurality of weight plates 106. According to this embodiment, the second weight plate 900 includes projections 902, 904 (e.g., a third projection 902, a fourth projection 904, etc.). Similar to the projections 620, 622 of the first weight plate 600, the projections 902, 904 of the second weight plate 900 also extend outward from the second weight plate 900 at an angle (e.g., perpendicular to the second weight plate 900, at an angle in a range between 85 degrees and 95 degrees, etc.).

[0097] However, as shown in FIGS. 9 and 10, the third projection 902 is positioned a third distance d3 away from the fourth projection 904. The third distance d3 is greater than the first distance d1 between the first projection 620 and the second projection 622 of the first weight plate 600. For example, the third projection 902 and the fourth projection 904 are positioned a greater distance outward (e.g., toward a lateral edge of the second weight plate 900, etc.) from the vertical center axis AVPC than the first projection 620 and the second projection 622 of the first weight plate 600. For example, the third projection 902 is positioned the second distance d2 away from the fourth projection 904 such that each of the third projection 902 aligns with the first slot 624 and the second projections aligns with the second slot 626.

[0098] The second weight plate 900 also includes at least one slot 906, 908. The slots 906, 908 may be similar in size and shape to the slots 624, 626. According to the embodiment shown in FIGS. 9 and 10, the second weight plate 900 includes a first slot 906 and a second slot 908 positioned a distance away from the first slot 906. For example, the first slot 906 is positioned a distance (e.g., the second distance d2, etc.) away from the second slot 908 such that the projections 620, 622 are aligned with each of the first slot 906 and the second slot 908. When the second weight plate 900 is engaged with the first weight plate 600, the first slot 906 and the second slot 908 receive the projections 620, 622 engaging the second weight plate 900 with the first weight plate 600.

[0099] According to this embodiment, the second weight plate 900 also includes a second plate protrusion 910. The second plate protrusion 910 is centered along the vertical plate center axis AVPC. Similar to the protrusions 628, 630, the second plate protrusion 910 is configured to engage with the tray 124. For example, the second plate protrusion 910 is received by a portion of the tray 124 such that the second plate protrusion 910 facilitates the second weight plate 900 being positioned in a vertical (e.g., upright position, etc.) within the tray 124.

[0100] Now referring to FIG. 11 is the plurality of weight plates 106 including the first weight plate 600 and the second weight plate 900. As shown in FIG. 6, the first projection 620 is offset from the third projection 902 and the second projection 622 is offset the fourth projection 904. As described above, the first projection 620 is positioned the first distance away from the second projection 622, and the third projection 902 is positioned a third distance away from the fourth projection 904 such that the projections 620, 622 are offset from the projections 902, 904. For example, when the second weight plate 900 is secured to the weight-support portions 304, 306 by the locking pin 108, the second weight plate 900 engages the first weight plate 600. For example, when the second weight plate 900 is engaged with the first weight plate 600, the protrusions 902, 904 are received by, or positioned within, the slots 624, 626. Similarly, the first weight plate 600 engages another one of the plurality of weight plates (e.g., a second one of the plurality of second weight plates 900, etc.) that is positioned on a side adjacent to the first weight plate 600 and inward toward a handgrip portion 302 of the handlebar 104.

[0101] As shown in FIG. 11, the plurality of weight plates 106 alternative between the first weight plate 600 and the second weight plate 900. For example, the first weight plate 600 is positioned between two of the second weight plates 900. Similarly, the second weight plate 900 is positioned between two of the first weight plates 600. In another embodiment, the adjustable weightlifting system 100 may include any number of embodiments of weight plates 106, and the weight plate 106 may be arranged in any pattern such that each of the weight plates 106 engages with a weight plate 106 positioned adjacent to the weight plate and one of inward toward the handgrip portion 302 of the handlebar 104 or outward away from the handgrip portion 302 of the handlebar 104.

[0102] FIG. 12 is a side view of the locking pin 108. The locking pin 108 includes a locking pin body 1202. The locking pin body 1202 includes a first end 1204 and a second end 1206. The second end 1206 is opposite the first end 1204.

[0103] The first end 1204 includes a locking pin head 1208. The locking pin head 1208 is configured to engage with the first side 604 of the indent 602. For example, the locking pin head 1208 is configured to rest on (e.g., sit on, contact, etc.) the first side 604 of the indent 602. The locking pin head 1208 is configured to facilitate (e.g., aid, etc.) the insertion and removal of the locking pin 108.

[0104] The second end 1206 includes a ball lock 1210. The ball lock 1210 is configured to engage with the passage 110. For example, the ball lock 1210 is configured to apply a force against a wall of the passage 110 locking the locking pin 108 in place within the passage 110. In some embodiments, each weight plate 106 may define a ball lock groove configured to receive the ball lock 1210.

[0105] The locking pin head 1208 includes a button 1212. The button 1212 is configured to actuate the ball lock 1210. For example, a user may press (e.g., engage, actuate, move, etc.) the button 1212 to release the ball lock 1210. For example, when the button 1212 is pressed, the button 1212 causes the ball lock 1210 to move (e.g., withdraw, etc.) back into the locking pin body 1202 such that the ball lock 1210 is disengaged from the walls of the passage 110.

[0106] In another embodiment, the locking pin head 1208 may comprise a magnet. For example, the magnet of the locking pin head 1208 may be attracted to (e.g., magnetically pulled, etc.) to the weight plates 106 further securing the locking pin 108 in place. In other embodiments, the locking pin 108 may only include the locking pin body 1202 and the locking pin head 1208.

[0107] FIG. 13 is a side view of the adjustable weightlifting system 100 including the plurality of weight plates 106 and the locking pin 108. As shown in FIG. 10, the adjustable weightlifting system 100 includes the second weight plate 900 and a third weight plate 1300. The third weight plate 1300 is an end weight plate. For example, the third weight plate 1300 is an outermost plate of the plurality of weigh plates 106. For example, the third weight plate 1300 is positioned on an end of the weight-support portions 304, 306 opposite the handgrip portion 302.

[0108] The third weight plate 1300 is substantially similar to the first weight plate 600. However, as shown in FIG. 13, the third weight plate 1300 includes an end plate 1302. The end plate 1302 is coupled to the third weight plate 1300. The end plate 1302 is positioned on an outermost side 1304 (e.g., a side facing opposite the handgrip portion 302, etc.) of the third weight plate 1300. The end plate 1302 is substantially flat (e.g., smooth, etc.).

[0109] As shown in FIG. 13, the third weight plate 1300 is engaged with the second weight plate 900. When in an engaged position, as shown in FIG. 10, the projections 620, 622 are engaged with slots 906, 908 of the adjacent second weight plate 900.

[0110] As shown in FIG. 11, the locking pin 108 is positioned in the passage 110 of the third weight plate 1300 such that each of the plurality of weight plates 106 positioned successively inward from the third weight plate 1300.

[0111] Now referring to FIGS. 14-15 illustrate a method of using the adjustable weightlifting system 100. As shown in FIG. 14, a user selects an amount of weight to engage with the handlebar 104, and places the locking pin 108 within the passage 110 corresponding to the selected (e.g., desired, etc.) weight.

[0112] Once the locking pin is positioned within the passage 110, the user grasps the handgrip portion 302 of the handlebar 104 and lifts the handlebar 104 including the plurality engaged weight plates 106 positioned inward of the weight plate 106 engaged with the locking pin 108 out of the tray 124. The plurality of weight plates 106 not engaged (e.g., positioned outward of the weight plate 106 engaged with the locking pin 108, etc.) remain in the tray 124 positioned in an upright position.

[0113] Now referring to FIGS. 16-18 is the adjustable weightlifting system 100 including the tray 124. The tray 124 includes weight storing portions 1602, 1604 and a pin storage 1606. The pin storage 1606 is positioned between each of the weight storing portions 1602, 1604. The pin storage 1606 may be elevated (e.g., raised, extend vertically above, etc.). The pin storage 1606 is configured to store the locking pins 108.

[0114] The weight storing portions 1602, 1604 may be recessed such that a portion of the weight storing portions 1602, 1604 surround a lower portion of the plurality of weight plates 106.

[0115] Each of the weight storing portions 1602, 1604 include a plurality of feet 1608. The plurality of feet 1608 may include pads configured to grip a surface in which the tray 124 is placed.

[0116] As shown in FIGS. 17-18, the weight storing portions 1602, 1604 include recesses 1702. The recesses 1702 are staggered such that the recesses 1702 algin with the projections 620, 622, of the first weight plate 600 and the projections 902, 904 of the second weight plate 900. For example, the recesses 1702 receive the projections 620, 622, 902, 904, such that the weight plurality of weight plates 106 (e.g., the first weight plate 600, the second weight plate 900, the third weight plates 1300, etc.) remain in an upright (e.g., vertical position, etc.) when stored in the tray 124 even when the handlebar 104 is removed from the tray 124.

[0117] Now referring to FIG. 19 is the adjustable weightlifting system 1900 according to another embodiment. According to this embodiment, the adjustable weightlifting system 1900 includes a tether 1902. The tether 1902 is coupled to an innermost plate 1904 of the plurality of weight plates 106 and to the locking pin head 1208 of the locking pin 108. The tether 1902 is configured to couple the locking pin 108 to the innermost plate 1904 such that the locking pin 108 is removable from the weight plates 106 yet still coupled to the adjustable weightlifting system 1900. For example, the tether 1902 facilitates keeping the locking pin 108 with the other components of the adjustable weightlifting system 1900 to reduce instances of misplacing the locking pins 108.

[0118] Now referring to FIGS. 20-27 is the adjustable weightlifting system 2000 according to another embodiments. According to this embodiment, the adjustable weightlifting system 2000 includes a weightlifting device 2002, a plurality of weight plates 2004, and a locking pin 2006.

[0119] According to this embodiment, the weightlifting device 2002 is a kettlebell. The weightlifting device 2002 includes a weight housing 2008. According to this embodiment, the weight housing 2008 is substantially hexagonal in shape. According to other embodiments, the weightlifting device may substantially cube-like, rectangular, or any other shape. The weight housing 2008 is configured to receiving at least one of the plurality of weight plates 2004. For example, a user may determine a desired weight to lift using the weightlifting device 2002 and coupled the desired weight to the weight housing 2008.

[0120] The weight housing 2008 includes a base surface 2010 and side surfaces 2012. The side surfaces 2012 extend from the base surface 2010 such that the side surfaces surround the plurality of weight plates 2004 engaged with the weight housing 2008.

[0121] The weightlifting device 2002 further includes a handle 2014. The handle 2014 is curved (e.g., bowed, semi-circular, etc.) and coupled to the base surface 2010 weight housing 2008. The handle 2014 is configured to be gripped (e.g., grasped, held, etc.) by a user such that the user can perform various exercises (e.g., kettlebell swings, crunches, etc.).

[0122] The handle 2014 incudes a handgrip portion 2016. The handgrip portion 2016 includes texturization (e.g., knurling, etc.). For example, the handgrip portion 2016 includes knurling to facilitate a gripping the handle 2014.

[0123] The weight housing 2008 further includes a housing recess 2018. The housing recess 2018 is positioned on one of the side surfaces 2012. The housing recess 2018 defines a plurality of housing openings 2020. The housing openings are configured to receive the locking pin 2006. For example, the locking pin 2006 extends through the housing openings 2020 of the weight housing 2008 and though at least one of the plurality of weight plates 2004 coupling the at least one of the plurality of weight plates 2004 to the weightlifting device 2002.

[0124] The weightlifting device 2002 also includes a tray 2022. The tray 2022 includes a base 2024. The base 2024 is configured to receive (e.g., store, etc.) at least one of the plurality of weight plates 2004 or weight housing 2008.

[0125] The locking pin 2006 is similar to the locking pin 108. For example, the locking pin 2006 includes a locking pin head 2026 and a locking pin body 2028. The locking pin body 2028 is receiving by the housing openings 2020 and the locking pin head 2026 is positioned in the housing recess 2018.

[0126] The plurality of weight plates 2004 include at least one plate opening 2030, 2032. According to the embodiment shown in FIG. 20, the weight plates 2004 include a first plate opening 2030 and a second plate opening 2032. The plate openings 2030, 2032 are centered on a horizontal center plate axis AHC. For example, the second plate opening 2032 is positioned a distance away from the first plate opening 2030 along the horizontal center plate axis AHC.

[0127] The plurality of weight plates 2004 each define a passage 2034. The passage 2034 is configured to receive the locking pin 2006. For example, a user may insert the locking pin 2006 through the weight housing 2008 and through the passage 2034 of the desired weight plate 2004, coupling the desired weight plate 2004 and the plurality of weight plates 2004 positioned above (e.g., vertically above, adjacent to a first side of the weight plate 2004 nearest the base surface 2010 of the weight housing 2008, etc.). For example, the locking pin 2006 couples the selected amount of weight (e.g., the engaged weight plate 2004 and the plurality of weight plates above the engaged weight plate, etc.) to the weight housing 2008 and supports the selected amount of weight during use of the weightlifting device 2002.

[0128] As shown in FIG. 21, the base 2024 includes at least one prong 2102, 2104 extending away from the base 2024. For example, the prongs 2102, 2104 extend upwards substantially perpendicular to the base 2024. The base 2024 is configured to receive the plurality of weight plates 2004 such that the plurality of weight plates 2004 are stored on (e.g., lay on, rest on, etc.) the base 2024. For example, the prongs 2102, 2104 extend through the plate openings 2030, 2032 securing the plurality of weight plates 2004 to the base 2024

[0129] As shown in FIG. 22, the base 2024 includes a weight plate base 2202 and a housing base 2204. The weight plate base 2202 is positioned on the housing base 2204. For example, the housing base 2204 may be larger (e.g., have a greater surface area, etc.) than the weight plate base 2202. The weight plate base 2202 is configured to receive the plurality of weight plates 2004. For example, the plurality of weight plates 2004 are stored on the weight plate base 2202 when not coupled to the weight housing 2008. When the weightlifting device 2002 is not in use, the plurality of weight plates 2004 are stored on the weight plate base 2202 and the weight housing 2008 is stored on top of the housing base 2204 surrounding (e.g., enclosing, etc.) the plurality of weight plates 2004.

[0130] FIG. 24 is bottom view of the weightlifting device 2002. As shown in FIG. 24, the locking pin body 2028 of the locking pin 2006 is positioned through the passage 2034. The passage 2034 extends from a first edge 2402 (e.g., a top edge, a first side edge, etc.) of each of the plurality of weight plates 2004 to a second edge 2404 (e.g., a bottom edge, a second side edge opposite the first side edge, etc.) opposite the first edge 2402.

[0131] The locking pin 2006 extends through a first housing side 2406 to a second housing side 2408. As shown in FIG. 24, the locking pin 2006 includes a ball lock 2410. For example, when the locking pin 2006 is engaged with one of the weight plates 2004, the locking pin 2006 extends through the first housing side 2406 and the second housing side 2408 such that the ball lock 2410 is positioned on an exterior side of the second housing side 2408.

[0132] FIG. 25 is a bottom perspective view of the weight housing 2008. The base surface 2010 and the side surfaces 2012 define a weight cavity 2502. The weight cavity 2502 is configured to receive and housing the plurality of weight plates 2004.

[0133] FIGS. 26-27 illustrate one of the plurality of weight plates 2004. As shown in FIGS. 26-27 and as previously described, the weight plate 2004 includes the plate openings 2030, 2032 and the passage 2034. The passage 2034 is positioned on a bottom side 2602 (e.g., a side that contacts the weight plate base 2202. The passage 2034 is also centered along the plate center axis APC. Each of the plate openings 2030, 2032 are positioned equidistant from the plate center axis APC.

[0134] Now referring to FIGS. 28-30 is the adjustable weightlifting system 2800 according to another embodiments. According to this embodiment, the adjustable weightlifting system 2800 is an adjustable kettlebell weightlifting system. The adjustable weightlifting system 2800 includes an adjustable weightlifting device 2802 (e.g., an adjustable kettlebell, etc.), a plurality of weight plates 2804, and a locking pin 2806.

[0135] As shown in FIGS. 28-30, the adjustable weightlifting device 2802 includes a weight-support portion 2808. The weight-support portion 2808 is configured to couple the plurality of weight plates 2804. The weight-support portion 2808 defines a plurality of apertures 2810 (e.g., openings, holes, etc.). The apertures 2810 of the weight-support portion 2808 is configured to receive the locking pin 2806 to couple at least one of the plurality of weight plates 2804 to the adjustable weightlifting device 2802.

[0136] As shown in FIGS. 28-30, the weight-support portion 2808 at least partially surrounds the plurality of weight plates 2804. For example, the weight-support portion 2808 includes a curved portion 2812 and a base portion 2814. The base portion 2814 is a ring shape that supports the adjustable weightlifting device 2802 (e.g., the adjustable weightlifting device rests on, etc.) when the adjustable weightlifting device 2802 is not in use. The curved portion 2812 is coupled to the base portion 2814 such that the curved portion 2812 is positioned perpendicular to the base portion 2814. According to this embodiment, the base portion 2814 defines notches or cutouts 2815 as described in further detail below.

[0137] The adjustable weightlifting device 2802 also includes a handle 2816. The handle 2816 is coupled to the curved portion 2812 of the weight-support portion 2808. The handle 2816 is curved (e.g., arched, bent, etc.) such that the handle 2816 defines a handgrip cavity 2818 between the handle 2816 and the curved portion 2812.

[0138] The adjustable weightlifting device 2802 also includes a weight housing 2820. The weight housing 2820 is substantially dome-shaped but other shapes are possible (e.g., cubic, etc.). According to this embodiment, the weight housing 2820 includes a first weight housing piece 2822 and a second weight housing piece 2824. Each of the first weight housing piece 2822 and the second weight housing piece 2824 are coupled to the each of the curved portion 2812 and the base portion 2814 of the weight-support portion 2808. The weight housing 2820 defines a weight plate cavity 2826 and is configured to house (e.g., enclose, surround, etc.) the plurality of weight plates 2804. For example, according to this embodiment, the adjustable weightlifting device 2802 comprises a plurality of fasteners (e.g., screws, bolts, etc.) configured to couple the weight housing 2820 to the curved portion 2812 and the base portion 2814.

[0139] The adjustable weightlifting system 2800 also includes a base 2828. The base 2828 includes a raised portion 2830, a recessed edge 2832, and at least one notch 2834. The raised portion 2830 extends a distance above the recessed edge 2832. According to this embodiment, the base 2828 includes two notches 2834. The notches 2834 extend from the raised portion 2830 to an outer edge of the recessed edge 2832. The raised portion 2830 is configured to support the plurality of weight plates 2804 when the adjustable weightlifting device 2802 is not in use. The recessed edge 2832 is configured to engage with (e.g., support, contact, etc.) the base portion 2814 of the weight-support portion 2808. The notches 2834 are received by the notch cutouts 2815 securing the base portion 2814 to the base 2828.

[0140] As shown in FIGS. 28-30, the adjustable weightlifting device 2802 includes the plurality of weight plates 2804. According to this embodiment, the plurality of weight plates 2804 are cylindrical (e.g., a circular top and bottom surface, etc.).

[0141] The plurality of weight plates 2804 define a plurality of openings 2836 (e.g., 4 openings, 4 holes, etc.). Each of the plurality of openings 2836 are positioned equidistant (e.g., substantially the same distance from, etc.) to another one of the plurality of openings 2836. In some embodiments, the base 2828 comprises prongs (e.g., prongs 1846, etc.) that are received by the plurality of openings 2836 such that the weight plates 2804 are secured to (e.g., engaged with, etc.) the base 2828 as previously described in other embodiments.

[0142] Similar to the embodiments of FIGS. 1-20, the plurality of weight plates 2804 define a passage 2838. Each of the passages 2838 are defined through a center of the weight plates 2804. The passage 2838 is configured to engage with (e.g., receive, etc.) the locking pin 2806. For example, the locking pin 2806 is provided through one of the apertures 2810 (e.g., threaded through, received by, etc.) and is then received by one of the passages 2838. By engaging one of the plurality of weight plates 2804 with the locking pin 2806 (e.g., coupling the weight plate 2804 to the weight housing 2820, etc.), each of the weight plates 2804 positioned adjacent to and in a direction from the engaged weight plate 2804 is coupled to (e.g., supported within the weight plate cavity 2826, etc.) the adjustable weightlifting device 2802. For example, according to this embodiment, each of the plates positioned successively in a direction towards the handle 2816 (e.g., an inward direction, etc.) within the weight plate cavity 2826 is engaged with the adjustable weightlifting device 2802 for performing an exercise. According to another embodiment each of the plates positioned successively in a direction away from the handle 2816 (e.g., an outward direction, etc.) within the weight plate cavity 2826 is engaged with the adjustable weightlifting device 2802 for performing an exercise.

[0143] As shown in FIG. 30, each of the first weight housing piece 2822 and the second weight housing piece 2824 are removably coupled to the curved portion 2812. The adjustable weightlifting system 2800 includes a plurality of screws 3002 (e.g., fasteners, bolts, etc.). Each of the first weight housing piece 2822 and the second weight housing piece 2824 may be formed of a more flexible material such as plastic, and the weight-support portion 2808 may be formed of a more rigid material such as a metal.

[0144] Now referring to FIGS. 31-40 is the adjustable weightlifting system 3100 according to another embodiment. According to this embodiment, the adjustable weightlifting system 3100 is an adjustable kettlebell weightlifting system. The adjustable weightlifting system 3100 includes an adjustable weightlifting device 3102 (e.g., an adjustable kettlebell, etc.), a plurality of weight plates 3104, and a locking pin 3106.

[0145] As shown in FIGS. 31-32 is the adjustable weightlifting system 3100 including the adjustable weighting device 3102. Similar to the embodiment of FIGS. 28-30, the adjustable weightlifting device 3102 includes the weight-support portion 3108 configured to couple the plurality of weight plates 3104. The weight-support portion 3108 defines a plurality of apertures 3110 (e.g., openings, holes, etc.). The apertures 3110 of the weight-support portion 3108 is configured to receive the locking pin 3106 to couple at least one of the plurality of weight plates 3104 to the adjustable weightlifting device 3102.

[0146] The weight-support portion 3108 at least partially surrounds the plurality of weight plates 2804. For example, the weight-support portion 2808 includes a curved portion 3112. The curved portion 3112 is substantially ring shaped such that the curved portion extends up and around the sides and top portions of the plurality of weight plates 3104.

[0147] The adjustable weightlifting device 3102 also includes a handle 3116. The handle 3116 is coupled to the curved portion 3112 of the weight-support portion 3108. The handle 3116 is curved (e.g., arched, bent, etc.) such that the handle 3116 defines a handgrip cavity 3118 between the handle 3116 and the curved portion 3112.

[0148] As shown in FIGS. 31-32, according to this embodiment, the adjustable weightlifting device 3102 includes housing pieces 3120. According to this embodiment, the adjustable weightlifting device 3102 includes two housing pieces 3120. Each of the housing pieces 3120 are coupled to the weight-support portion 3108. As such, the curved portion 3112 and the housing pieces 3120 define a weight plate cavity as described in more detail below.

[0149] The adjustable weightlifting system 3100 further includes a weight plate base 3122. The weight plate base 3122 includes a base plate 3124. The base plate 3124 is configured is configured to selectively couple to the weight-support portion 3108. AS shown in FIGS. 31-32, the base plate 3124 has a greater diameter than the weight-support portion 3108 including the housing pieces 3120 such that the base plate 3124 extends outwards past each of the weight-support portion 3108 and the housing pieces 3120.

[0150] Now referring to FIGS. 33-35 is a side view, perspective view, and front view of a portion of the adjustable weightlifting system 3100 including the adjustable weightlifting device 3102. As previously described. The weight-support portion 3108 and the housing pieces 3120 define a weight plate cavity 3300. As shown in FIGS. 33 and 34, according to this embodiment, the adjustable weightlifting device 3102 includes ten plurality of weight plates 3104 positioned in the weight plate cavity 3300. In other embodiments, more or less weight plates 3104 may be positioned within the weight plate cavity 3300 and coupled to the adjustable weightlifting device 3102. For example, a user may only couple 1 or 2 of the plurality of weight plates 3104 to the adjustable weightlifting device 3102 to decrease the overall weight of the adjustable weightlifting system 3100 for certain exercises.

[0151] According to this embodiment, the adjustable weightlifting device 3102 further includes a support mechanism 3302 coupled to the weight-support portion 3108. Unlike the embodiment, of FIGS. 28-30, this embodiment does not include a base portion 2825. Instead, the weight-support portion 3108 is semicircular or horseshoe like in shape with an open bottom portion.

[0152] The support mechanism 3302 includes a support rod 3306. The support rod 3306 extends in a direction parallel to a grip portion of the handle 3116. For example, the support rod 3306 extends from a first side of the weight-support portion 3108 where a first set of openings 310 are positioned to a second side of the weight-support portion 3108 where a second set of openings 310 are positioned.

[0153] The weight-support portion 3108 includes handle supports 3304 (e.g., a first handle supports 3304 and a second handle supports 3304, etc.). The handle supports 3304 extend from the curved portion 3112 of the weight-support portion 3108 downward into the weight plate cavity 3300. The handle supports 3304 engage with, or are in contact with, the support rod 3306.

[0154] As shown in FIGS. 33-35, the weight plate base 3122 includes a raise base 3308. The raised base 3308 is coupled to the base plate 3124 and comprises a smaller (e.g., lesser, etc.) diameter than the base plate 3124 As such, the sides of the weight-support portion 3108 extend around, or are adjacent to, the raised base 3308 when the adjustable weightlifting device 3102 is resting on top of the weight plate base 3122 of when the bottom portion 312 is coupled to the adjustable weightlifting device 3102. As shown in FIGS. 33-35, the sides of the weight-support portion 3108 is curved such that a distance between the sides of the weight-support portion 3108 varies along a vertical axis of the adjustable weightlifting device 3102.

[0155] According to some embodiments, and described in more detail below, the plurality of weight plates 3104 includes an anchor plate 3310. The anchor plate 3310 comprises a weight (e.g., 2 lbs, 5 lbs, etc.) similar to the rest of the plurality of weight plates 3104. However, according to this embodiment, the anchor plate 3310 is coupled to the weight plate base 3122. For example, when the raised base 3308 is selectively coupled to the adjustable weightlifting device 3102 via the locking pin 3106, the weight plate base 3122 is also coupled to the adjustable weightlifting device 3102.

[0156] As shown in FIG. 35, the weight plate cavity 3300 includes support plates 3502 positioned adjacent to the sides of the weight-support portion 3108 inside of the weight plate cavity 3300. The support plates 3502 comprises openings that align with the plurality of apertures 3110 of the weight-support portion 3108. The support plates 3502 are configured to provide additional support to the weight-support portion 3108 when coupling the plurality of weight plates 3104 to the weight-support portion 3108.

[0157] Now referring to FIG. 36 is a perspective view of the weight plate base 3122 including the anchor plate 3310. The anchor plate an opening or cavity 3602 that extends through a bottom side of the anchor plate 3310 and across the anchor plate 3310. The cavity 3602 is configured to receive the locking pin 3106 to couple the anchor plate 3310 including the weight plate base 3122 to the adjustable weightlifting device 3102. The anchor plate 3310 also includes protrusions 3604 configured to engage with an adjacent one of the plurality of weight plates 3104.

[0158] Now referring to FIGS. 37 and 38 are a cross-sectional view and a perspective view of the weight plate base 3122. The weight plate base 3122 includes protrusions 3702 shaped similarly to the protrusions 3604 of the anchor plate 3310. The protrusions 3702 are positioned on the raised base 3308 and are configured to engage with or contact a bottom side of the anchor plate 3310. The weight plate base 3122 includes fasteners or screws 3704. The screws 3704 are configured to engage with or secure the weight plate base 3122 to anchor plate 3310.

[0159] Now referring to FIGS. 39 and 40 are a top perspective view and a bottom perspective view of one of the plurality of weight plates 3104. Similar to the plurality of weight plates 2804, the plurality of weight plates 3104 include protrusions 3902 positioned on a top side of each of the plurality of weight plates 3104 and recesses 4002 positioned on the bottom side of each of the adjustable weightlifting device 3102. The recesses 4002 are configured to engage with protrusions 3902 of the adjacent one of the plurality of weight plates 3104. Also shown in FIG. 39, the plurality of weight plates 3104 include, and in some embodiments the weight plate base 3122 also includes, notches 3904. The notches 3904 are shaped to be complimentary to the weight-support portion 3108. As such, the plurality of weight plates 3104 and the weight plate base 3122 fit within the weight plate cavity 3300 with minimal or marginal space between the plurality of weight plates 3104 and the weight-support portion 3108 and / or the housing pieces 3120.

[0160] Now referring to FIGS. 41-45, is the adjustable weightlifting system 4100 including the adjustable weightlifting deice 4102 according to another embodiment. As shown in FIG. 41, the exterior of the adjustable weightlifting deice 4102 is substantially similar to the adjustable weightlifting device 3102. For example, the adjustable weightlifting deice 4102 includes the weight-support portion 2808 including the curved portion 2812. However, as shown in FIG. 42, the weight-support portion 2808 of the adjustable weightlifting deice 4102 does not include a base portion, such as the base portion 2814. The adjustable weightlifting deice 4102 also includes the handle 2816 coupled to and extending from the curved portion 2812. The adjustable weightlifting deice 4102 also includes the first weight housing piece 2822 that, along with the weight-support portion 2808, define the weight plate cavity 2826.

[0161] As shown in FIG. 42, unlike the adjustable weightlifting device 2802, the adjustable weightlifting deice 4102 does not in include the support mechanism 3302 nor the support plates 3502. Instead, the adjustable weightlifting deice 4102 includes protrusions 4202 coupled to an interior surface of the curved portion 2812 (e.g., a surface facing the weight plate cavity 2826, etc.). The plurality of weight plates 4104 are positioned within the weight plate cavity 2826 such that a top, or uppermost, one of the plurality of weight plates 4104 touches or comes into contact with the protrusions 4202 stabilizing or minimizing movement of the plurality of weight plates 4104 within the weight plate cavity 2826. According to this embodiment, the plurality of weight plates 4104 includes or defines a second opening or cavity, substantially similar to the cavity 3602, on a top side of the weight plate 4104. For example, as shown in FIG. 43, the weight plate 4104 defines a cylindrical cavity on a top side of the weight plate 4104 aligned with the cavity 3602 positioned on the bottom side of the weight plate 4104. For example, the second opening or cavity is configured to guide the locking pin 4106 into the apertures (e.g., apertures 3110, etc.) defined through the weight-support portion 2808. For example, the if a user intends to lift the adjustable weightlifting deice 4102 with no additional weight (e.g., no plurality of weight plates 4104 coupled to the weight-support portion 2808, etc.), then the second cavity on a top side of an uppermost one of the plurality of weight plates 4104 is configured to guide the locking pin 4106 into an uppermost one of the apertures 3110. As shown in FIG. 43, the adjustable weightlifting deice 4102 can include a base 4124 or a tray in which the adjustable weightlifting deice 4102 may be stored on.

[0162] As shown in FIG. 42-45, the apertures 3110 of the weight-support portion 3108 are positioned such that the locking pin head 4108 of the locking pin 4106 extends outward from the weight-support portion 3108. According to this embodiment, the locking pin head 4108 of the locking pin 4106 includes a magnet that causes the locking pin head 4108 to attract or be pulled towards the weight-support portion 3108 further securing the locking pin 4106 within the aperture 3110. As shown in FIG. 45, according to this embodiment, the locking pin 4106 does not include a release button for a ball lock mechanism. Instead, the locking pin 4106 as shown in FIG. 45 is configured to friction fit within an aperture of one of the plurality of weight plates 4104.

[0163] Now referring to FIGS. 46-52, is the adjustable weightlifting system 4500 including the adjustable weightlifting device 4502 according to another embodiment. The 4500 is substantially similar to the embodiment of the adjustable weightlifting system 100 as shown in FIGS. 1 and 2 as described in more detail below.

[0164] The adjustable weightlifting device 4502 includes a handlebar 4504, a plurality of weight plates 4506, and a locking pin 4508. The handlebar 4504 is similar to the handlebar 104. The handlebar 4504 includes the handgrip portion 302 and the weight-support portions 304, 306. The handgrip portion 302 is separated from the weight-support portions 304, 306 by the separation plates 4522. As shown in FIGS. 46 and 47, unlike the separation plates 122 of the handlebar 104 (e.g., as shown in FIGS. 1 and 2), the separation plates 4522 extend substantially perpendicular to the handgrip portion 302. As such, the plurality of weight plates 4506 are coupled to the weight-support portions 304, 306 such that the plurality of weight plates 4506 are positioned substantially perpendicular to the weight-support portions 304, 306 and the handgrip portion 302. For example, the plurality of weight plates 4506 are coupled to or oriented perpendicular to the weight-support portions 304, 306 when coupled to the handlebar 4504.

[0165] The adjustable weightlifting system 4500 further includes the tray 124. According to this embodiment, the tray 124 includes guides 4510 and a smooth bottom surface 4512 (e.g., substantially smooth, ribless, etc.) surface for receiving the plurality of weight plates 4506 for storage. As shown in FIG. 46, similar to the plurality of weight plates 4506 being coupled to the handlebar 4504 in an orientation substantially perpendicular to the weight-support portions 304, 306, the plurality of weight plates 4506 are stored within the tray 124 in a substantially perpendicular orientation. As shown in FIG. 46, the guides 4510 are coupled to and extend from the side walls of the tray 124. The guides 4510 are tapered such that an end opposite the end of the guides 4510 coupled to the sides walls of the tray 124 is thinner than the end coupled to the side walls. The guides 4510 are configured to facilitate guiding the adjustable weightlifting device 4502 including the selected plurality of weight plates 4506 into the tray 124 for storage. Further, the guides 4510 are configured to support or hold the non-selected or non-coupled plurality of weight plates 4506 in an upright, vertical (e.g., perpendicular to a base of the tray 124, etc.) position within the tray 124 while the adjustable weightlifting device 4502 is in use.

[0166] As shown in FIG. 48, some embodiments of the adjustable weightlifting system 4500 are configured to accommodate less weight plates 4506. For example, the handlebar 4504 of the adjustable weightlifting system 4500 shown in FIG. 48 has a less length than the handlebar 4504 of FIGS. 46-47. The handlebar 4504 may be configured to couple four weight plates 4506 such that the adjustable weightlifting system 4500 weighs a total of about twenty-five pounds. In other embodiments, the adjustable weightlifting system 4500 may include a handlebar 4504 that is longer or has a greater length than the handlebar 4504 of FIGS. 46-47, such that the 4504 can accommodate coupling a great amount of weight or number of weight plates 4506 to the adjustable weightlifting system 4500.

[0167] Now referring to FIGS. 49-52 are various views of one of the plurality of weight plates 4506 of the adjustable weightlifting system 4500 according to one embodiment. FIGS. 49 and 50 are rear and front perspective view of a weight plate 4506. FIG. 51 is a side view of a two of the plurality of weight plates 4506 engaging with one another. FIG. 52 illustrates an end plate of the plurality of weight plates 4506. As shown in FIG. 49, the side of the plurality of weight plates 4506 shown is a rear side 4802 or a side that faces away from the handgrip portion 302 when coupled to the adjustable weightlifting system 4500. Similar to the weight plate 106, the weight plate 4506 defines an indent 4804 substantially similar to the indent 602. The indent 4804 is substantially trapezoidal in shape. For example, the indent 4804 includes a first side 4810 and second sides 4812 that extend at an angle from the first side 4810.

[0168] Each of the plurality of weight plates 4506 define a passage 4814 positioned on the rear side 4802 of the weight plate 4506. The passage 4814 is substantially similar to the passage 110. The passage 4814 is substantially cylindrical in shape and configured to receive the locking pin 4508 to couple the selected weight plate 4506 and weight plates 4506 positioned successively inward from the selected weight plate 4506 toward the handgrip portion 302 to the weight-support portions 304, 306 of the handlebar 4504.

[0169] As shown in FIG. 49, each of the plurality of weight plates 4506 define a cutout 4816 positioned in the bottom or lower half of the plurality of weight plates 4506. The cutout 4816 is an opening that extends completely through the weight plate 4506.

[0170] Each of the plurality of weight plates 4506 also defines a recess4818. The recess 4818 is positioned on a bottom edge of the rear side 4802 of the weight plate 4506 below the cutout 4816. The recess 4818 is configured to receive a protrusion, such as protrusion 4904, as described in more detail below. The recess 4818 is shaped complementary to the protrusion 4904. AS shown in FIG. 49, the recess 4818 is substantially trapezoidal with curved edges. In other embodiments, the recess 4818 may comprise another shape, such as a rectangle, a square, etc.

[0171] Now referring to FIG. 50, is a perspective view of a front side 4902 of one of the plurality of weight plates 4506 according to one embodiment. The weight plate 4506 includes the protrusion 4904 that extends from a bottom edge of the protrusion 4904 of the weight plate 4506. According to this embodiment, the protrusion 4904 is substantially trapezoidal in shape with rounded edges. The protrusion 4904 is configured to be received by the recess 4818 of an inwardly-adjacent one of the plurality of weight plates 4506 (e.g., one of the weight plates 4506 positioned inward towards the handgrip portion 302 of the adjustable weightlifting system 4500, etc.). The protrusion 4904 engages with or contacts the walls of the recess 4818 of an inwardly-adjacent one of the plurality of weight plates 4506 when a user grabs the handgrip portion 302 of the handlebar 4504 removing the adjustable weightlifting device 4502 from the tray 124. For example, a selected one of the plurality of weight plates 4506 receives the locking pin 4508 such that the locking pin 4508 is positioned within the passage 4814 and the selected weight plate 4506 is coupled to the weight-support portions 304, 306 via the locking pin 4508. Then when the user engages the adjustable weightlifting system 4500, such as grabs onto the handgrip portion 302 and removes the adjustable weightlifting device 4502 from the tray 124, the protrusion 4904 of the weight plate 4506 coupled to the weight-support portions 304, 306 via the locking pin 4508 engages with the recess 4818 of the weight plate 4506 inwardly-adjacent to the selected one of the plurality of weight plates 4506 (See FIG. 51). Each protrusion 4904 of each inwardly-adjacent weight plate 4506 engages with, or grabs, onto the recess 4818 of the next successively inward weight plate 4506 of the plurality of weight plates 4506. For example, the protrusion 4904 engaging with the inwardly-adjacent recess 4818 couples the inwardly-adjacent plurality of weight plates 4506 to the adjustable weightlifting device 4502. Each protrusion 4904 engaging with each recess 4818 of each of the plurality of weight plates 4506 is similar to the mechanism of each of the projections 620, 622 engaging with each of the first projection opening 616 and second projection opening 618 of each of the plurality of weight plates 106.

[0172] Now referring to FIG. 52, is a rear side view of one endplate 5102 of the plurality of weight plates 4506. The endplate 5102 is a weight plate positioned furthest from the handgrip portion 302 of the handlebar 4504. The one endplate 5102 includes an endplate cover 5104. The endplate cover 5104 covers at least a portion of the passage 4814.

[0173] Now referring to FIG. 53, is another adjustable weightlifting system 5200 including a first adjustable weightlifting device 5202, a second adjustable weightlifting device 5204, the plurality of weight plates 4506, and the locking pin 4508. Each of the first adjustable weightlifting device 5202 and the second adjustable weightlifting device 5204 include the handgrip portion 302 and the weight-support portions 304, 306 and are configured to couple the plurality of weight plates 4506 to the weight-support portions 304, 3064802 for weightlifting.

[0174] The first adjustable weightlifting device 5202 includes a straight bar handlebar 5206 (e.g., an Olympic weightlifting bar, a squat bar, etc.). For example, the handgrip portion 302 of the straight bar handlebar 5206 is elongated (e.g., has a greater length than the handlebar 4504 of the adjustable weightlifting device 4502, etc.). First adjustable weightlifting device 5202 may be used for a variety of exercises including back squats, front squats, and deadlifts.

[0175] The second adjustable weightlifting device 5204 includes a curl bar handlebar 5208. The curl bar handlebar 5208 is curved or bent and can be used for various exercises including, but not limited to, bicep curls.

[0176] As shown in FIG. 53, the first adjustable weightlifting device 5202 and the second adjustable weightlifting device 5204 of the adjustable weightlifting system 5200 are interchangeable such that both the straight bar handlebar 5206 and the curl bar handlebar 5208 can be used with the same set of weight plates 4506. Furthermore, the first adjustable weightlifting device 5202 and the second adjustable weightlifting device 5204 can be interchangeable with the adjustable weightlifting device 4502 such that the same set of plurality of weight plates 4506 can be used with each of the handlebar 4504, the straight bar handlebar 5206, and the curl bar handlebar 5208.

[0177] As shown in FIG. 53, the adjustable weightlifting system 5200 includes a tray 5210. The tray 5210 is configured to store or hold the plurality of weight plates 4506, the first adjustable weightlifting device 5202, and the second adjustable weightlifting device 5204. The tray 5210 includes a first weight storage bin 5212 and a second weight storage bin 5214 coupled via connecting bards or connectors 5216. The first adjustable weightlifting device 5202 is positioned or stored in the 5214 tray 5210 such that the weight-support portions 304, 306 are positioned within the bar slot 608 of each of the plurality of weight plates 4506 and the straight bar handlebar 5206 extends between the first weight storage bin 5212 and the second weight storage bin 5214.

[0178] The adjustable weightlifting system 5200 also includes a storage rack 5218. The storage rack 5218 is coupled to and extends from each of the first weight storage bin 5212 and the second weight storage bin 5214. According to this embodiment, the storage rack 5218 includes two hook-like structures that extend outward from each of the first weight storage bin 5212 and the second weight storage bin 5214 and receive a portion of the curl bar handlebar 5208 near, or adjacent to, the separation plates 122. In some embodiments, the curl bar handlebar 5208 of the second adjustable weightlifting device 5204 may be stored within the tray 5210 and the straight bar handlebar 5206 of the first adjustable weightlifting device 5202 may be stored in the storage rack 5218.

[0179] The terms “coupled,”“connected,” and the like, as used herein, mean the joining of two members directly or indirectly to one another. Such joining may be stationary (e.g., permanent) or moveable (e.g., removable or releasable). Such joining may be achieved with the two members or the two members and any additional intermediate members being integrally formed as a single unitary body with one another or with the two members or the two members and any additional intermediate members being attached to one another.

[0180] References to “or” may be construed as inclusive so that any terms described using “or” may indicate any of a single, more than one, and all of the described terms. References to at least one of a conjunctive list of terms may be construed as an inclusive OR to indicate any of a single, more than one, and all of the described terms. For example, a reference to “at least one of ‘A’ and ‘B’” can include only ‘A’, only ‘B’, as well as both ‘A’ and ‘B’. Such references used in conjunction with “comprising” or other open terminology can include additional items.

[0181] References herein to the positions of elements (e.g., “top,”“bottom,”“above,”“below,” etc.) are merely used to describe the orientation of various elements in the FIGURES. It should be noted that the orientation of various elements may differ according to other exemplary embodiments, and that such variations are intended to be encompassed by the present disclosure.

[0182] The construction and arrangement of the elements of the systems and methods of the selectable clamp for a weightlifting handlebar for an adjustable weight set as shown in the exemplary embodiments are illustrative only. Although only a few embodiments of the present disclosure have been described in detail, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied.

[0183] Additionally, the word “exemplary” is used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments or designs (and such term is not intended to connote that such embodiments are necessarily extraordinary or superlative examples). Rather, use of the word “exemplary” is intended to present concepts in a concrete manner. Accordingly, all such modifications are intended to be included within the scope of the present disclosure. Other substitutions, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the preferred and other exemplary embodiments without departing from the scope of the appended claims.

[0184] Where technical features in the drawings, detailed description or any claim are followed by reference signs, the reference signs have been included to increase the intelligibility of the drawings, detailed description, and claims. Accordingly, neither the reference signs nor their absence have any limiting effect on the scope of any claim elements.

[0185] Other substitutions, modifications, changes and omissions may also be made in the design, operating conditions and arrangement of the various exemplary embodiments without departing from the scope of the present invention. For example, any element (e.g., selectable clamp, weightlifting handlebar, etc.) disclosed in one embodiment may be incorporated or utilized with any other embodiment disclosed herein. Also, for example, the order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. Any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating configuration, and arrangement of the preferred and other exemplary

Examples

Embodiment Construction

[0064]A selectable clamp for a weightlifting handlebar provides a hassle-free solution for using an adjustable weight apparatus with a plurality of different handlebars.

[0065]Referring generally to the FIGURES, disclosed herein is an adjustable weightlifting system 100 for weightlifting that generally includes an adjustable weightlifting device 102 that includes a handlebar 104, a plurality of weight plates 106, and a locking pin 108. The adjustable weightlifting device 102 facilitates the use of varying amounts of weight with the same device. A user can select an amount of weight by inserting the locking pin 108 into one of a plurality of passages 110 (e.g., cavities, etc.) defined by one of the plurality of weight plates 106 coupling, or locking, the selected weight plate 106 to the handlebar 104. Once the locking pin 108 is secured to one of the plurality of weight plates 106, the user can then lift the adjustable weightlifting device 102 and in doing so, the selected weight plat...

Claims

1. A method of adjusting a weightlifting device, comprising:inserting a first releasable locking pin into a first weight plate on a first side of a handlebar to lock the first weight plate to the handlebar;inserting a second releasable locking pin into a second weight plate on a second side of the handlebar to lock the second weight plate to the handlebar;lifting the handlebar to lift the locked first weight plate and the locked second weight plate; andengaging other adjacent weight plates progressively from each of the locked first and second weight plates in one of a first direction toward a central handgrip on the handlebar or a second direction away from the central handgrip on the handlebar.

2. The method of claim 1, wherein engaging other adjacent weight plates progressively from each of the locked first and second weight plates in the first direction toward the central handgrip on the handlebar or in the second direction away from the central handgrip on the handlebar comprises engaging at least one first projection of the locked first weight plate with at least one first slot of a third weight plate and engaging at least one second projection of the second weight plate with at least one second slot of a fourth weight plate.

3. The method of claim 2, further comprising:engaging the third weight plate with a fifth weight plate on the first side and the fourth weight plate with a sixth weight plate on the second side.

4. The method of claim 3, wherein the third weight plate comprises at least one third projection configured to engage with at least one third slot of the fifth weight plate, and the fourth weight plate comprises at least one fourth projection configured to engage with at least one fourth slot of the sixth weight plate.

5. The method of claim 4, wherein the at least one third projection is positioned offset from the at least one first projection, and the at least one fourth projection is positioned offset from the at least one second projection.

6. The method of claim 1, further comprising:releasing the handlebar to disengage the other adjacent weight plates;removing each of the first releasable locking pin from the first weight plate on the first side and the second releasable locking pin from the second weight plate on the second side;inserting the first releasable locking pin into a third weight on the first side of the handlebar to lock the third weight to the handlebar;inserting the second releasable locking pin into a fourth weight on the second side of the handlebar to lock the fourth weight to the handlebar;lifting the handlebar to lift the locked third weight plate and the locked fourth weight plate; andengaging other adjacent weight plates progressively from each of the locked third and fourth weight plates in the first direction toward the central handgrip on the handlebar or in the second direction away from the central handgrip on the handlebar.

7. The method of claim 6, wherein the first weight plate and the second weight plate are positioned outwardly adjacent to each of the locked third weight plate and the locked fourth weight plate respectively, such that when lifting the handlebar the first weight plate and the second weight plate are not engaged.

8. The method of claim 1, further comprising:pressing a first button on the first releasable locking pin releasing the first releasable locking pin from the first weight plate; andpressing a second button on the second releasable locking pin releasing the second releasable locking pin from the second weight plate.

9. The method of claim 8, wherein pressing each of the first button and the second button actuates a ball lock disengaging the ball lock from each of the first weight plate and the second weight plate.

10. An adjustable weightlifting device, comprising:a handlebar with a weight-support portion and a handgrip portion;a plurality of weight plates disposed on the weight-support portion;a locking pin releasably engaged with one of the weight plates and the weight-support portion to lock the one of the weight plates to the handlebar; andone or more projections on each of the plurality of weight plates to successively engage each of any others of the plurality of weight plates disposed between the locked one of the weight plates and the handgrip portion or between the locked one of the weight plates and an end of the handlebar opposite the handgrip portion.

11. The adjustable weightlifting device of claim 10, wherein each of the plurality of weight plates define one or more slots configured to receive the one or more projections of an adjacent weight plate.

12. The adjustable weightlifting device of claim 11, wherein the one or more slots of one of the weight plates are horizontally offset relative to a center axis of the one weight plate from the one or more slots of adjacent weight plates.

13. The adjustable weightlifting device of claim 10, wherein the one or more projections of one of the plurality of weight plates are offset from the one or more projections of adjacent weight plates.

14. The adjustable weightlifting device of claim 10, where the one or more projections of one of the plurality of weight plates are positioned at first positions, and the one or more projections of the weight plates adjacent to the one weight plate are each positioned at a second position.

15. The adjustable weightlifting device of claim 10, wherein each of the weight plates define a handlebar slot configured to receive the weight-support portion of the handlebar.

16. The adjustable weightlifting device of claim 15, wherein each of weight plates define a passage extending across the handlebar slot, the passage configured to receive the locking pin to releasably couple the plurality of weight plates to the handlebar.

17. The adjustable weightlifting device of claim 16, wherein the weight-support portion defines a plurality of openings, each of the plurality of openings aligned with the passage of each of the weight plates.

18. The adjustable weightlifting device of claim 10, wherein the locking pin comprises:a pin body configured to engage at least one of the weight plates or the weight-support portion; anda locking pin head comprising a magnet configured to engage with one of the plurality of weight plates.

19. The adjustable weightlifting device of claim 18, wherein the pin body comprises a ball lock and each of the plurality of weight plates define a ball lock groove configured to engage with the ball lock of the pin body when the weight plate is in a locked position.

20. The adjustable weightlifting device of claim 18, further comprising a tether coupled to an innermost plate of the plurality of weight plates and to the locking pin head, the tether configured to couple the locking pin to the innermost plate.

21. An adjustable weightlifting device, comprising:a bar having a handgrip portion, a first weight-support portion, and a second weight-support portion, each weight-support portion having a plurality of openings;a plurality of weight plates disposed on each of the first and second weight-support portions, each weight plate having a passage aligned with one of the openings;a first locking pin releasably engageable with a first selected weight plate and the first weight-support portion;a second locking pin releasably engageable with a second selected weight plate and the second weight-support portion; andone or more projections positioned on each of the weight plates, the projections configured to engage with other adjacent weight plates coupling the adjacent weight plates to the bar.

22. The adjustable weightlifting device of claim 21, wherein the one or more projections on each of the weight plates extend inwardly towards the handgrip portion and are operable to progressively engage each of any inwardly-adjacent weight plates disposed between the first selected weight plate and the handgrip portion and the second selected weight plate and the handgrip portion.

23. The adjustable weightlifting device of claim 21, wherein the one or more projections on each of the weight plates extend outward away from the handgrip portion and are operable to progressively engage each of any outwardly-adjacent weight plates disposed between the first selected weight plate and a first end of the bar opposite the handgrip portion and the second selected weight plate and a second end of the bar opposite the handgrip portion.

24. The adjustable weightlifting device of claim 21, wherein each of the plurality of weight plates comprises a handlebar slot configured to receive the weight-support portion of the handlebar, and wherein the passage extends across the handlebar slot.

25. The adjustable weightlifting device of claim 24, wherein each passage extends at an angle across the handlebar slot, the angle in a range between 30 and 60 degrees relative to a weight plate center axis.

26. The adjustable weightlifting device of claim 25, wherein an end of the passage defines grooves, and each of the first locking pin and the second locking pin comprise a ball lock configured to engage with each of the grooves.

27. The adjustable weightlifting device of claim 21, wherein each of the weight plates comprises one or more slots positioned adjacent to each of the one or more projections.

28. The adjustable weightlifting device of claim 27, wherein each of the one or more slots of one of the weight plates is offset from the one or more slots of adjacent weight plates.

29. An adjustable weightlifting device, comprising:a handlebar comprising a handgrip portion;a weight-support portion coupled to the handlebar;a plurality of weight plates disposed on the weight-support portion; anda locking pin releasably engaged with one of the weight plates and the weight-support portion to lock the one of the weight plates to the handlebar.

30. The adjustable weightlifting device of claim 29, wherein the weight-support portion is a weight housing that defines a weight cavity that receives at least one of the plurality of weight plates.

31. The adjustable weightlifting device of claim 30, wherein the weight plate engaged with the locking pin is configured to support other weight plates positioned in the weight cavity inward from the engaged weight plate towards the handgrip portion.

32. The adjustable weightlifting device of claim 30, wherein each of the plurality of weight plates defines a passage, the passage configured to receive the locking pin releasably coupling the weight plates to the weight housing.

33. The adjustable weightlifting device of claim 32, wherein the weight housing defines a plurality of openings configured to receive the locking pin.

34. The adjustable weightlifting device of claim 33, wherein each of the openings align with the passages, the passages defined along a center axis of the weight plates.

35. The adjustable weightlifting device of claim 29, further comprising:one or more projections on each of the plurality of weight plates to successively engage each of any others of the plurality of weight plates disposed between the locked one of the weight plates and the handgrip portion.

36. A method of adjusting an adjustable weightlifting device, comprising:inserting a releasable locking pin into a first weight plate coupling the first weight plate to the weightlifting device; andlifting the weightlifting device to lift the locked first weight plate; andengaging other adjacent weight plates progressively from the locked first weight plate toward a handgrip portion of the adjustable weightlifting device.

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