US20130137555A1 - Weighted exercise device providing multiple grips - Google Patents
Weighted exercise device providing multiple grips Download PDFInfo
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- US20130137555A1 US20130137555A1 US13/618,749 US201213618749A US2013137555A1 US 20130137555 A1 US20130137555 A1 US 20130137555A1 US 201213618749 A US201213618749 A US 201213618749A US 2013137555 A1 US2013137555 A1 US 2013137555A1
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- Prior art keywords
- exercise device
- rim
- cut
- side wall
- handle
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/06—User-manipulated weights
- A63B21/072—Dumb-bells, bar-bells or the like, e.g. weight discs having an integral peripheral handle
- A63B21/0726—Dumb bells, i.e. with a central bar to be held by a single hand, and with weights at the ends
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/06—User-manipulated weights
- A63B21/072—Dumb-bells, bar-bells or the like, e.g. weight discs having an integral peripheral handle
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/06—User-manipulated weights
- A63B21/072—Dumb-bells, bar-bells or the like, e.g. weight discs having an integral peripheral handle
- A63B21/075—Dumb-bells, bar-bells or the like, e.g. weight discs having an integral peripheral handle with variable weights, e.g. weight systems with weight selecting means for bar-bells or dumb-bells
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B23/00—Exercising apparatus specially adapted for particular parts of the body
- A63B23/035—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
- A63B23/12—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for upper limbs or related muscles, e.g. chest, upper back or shoulder muscles
- A63B23/1281—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for upper limbs or related muscles, e.g. chest, upper back or shoulder muscles primarily by articulating the elbow joint
Definitions
- the present invention relates generally to a weighted device for use in exercising, and more particularly to generally hemispherical weighted exercise devices for use in exercising and which can be gripped in two or more different ways to thereby enable their use for a wide range of exercises.
- the present invention also relates to a stackable weighted exercise device.
- Dumbbells are often used in muscle-building or muscle-toning exercises.
- a traditional dumbbell i.e., a pair of weights connected by a short bar serving as a handle, is not appropriate for all exercises and alternative forms of weights have been developed for different exercises.
- weighted exercise device that was considered to be particularly useful for gymnastic exercises is disclosed in U.S. Pat. No. 113,966 (Ballou) and comprises a spherical or spheroidal lower part that is elongated or extended on one side.
- the weighted exercise device includes a hollow cavity and includes an opening in the elongated or extended part leading into the cavity.
- a handle extends across the cavity and is positioned to enable a user to extend their hand into the cavity and grasp the handle. The only manner in which this weighted exercise device may be used is by gripping the handle
- weighted exercise devices include those disclosed in U.S. Pat. Nos. 4,813,669; 4,880,218; and 4,900,016 (all to Caruthers).
- Another exercise device is a Bosu balance trainer that has a rim that can be gripped.
- This balance trainer is constructed of rubber and plastic and is not weighted.
- a weighted exercise device in accordance with the invention includes a body defining a hollow cavity opening at a first edge of the body.
- the body has a hemispherical portion and a tubular portion extending to one side of the hemispherical portion.
- a rim is arranged on the tubular portion of the body and projects outwardly past an outer surface of the body.
- a handle is arranged in the cavity. The rim provides a first grip for a user during use of the exercise device and the handle provides a second grip for the user during use of the exercise device.
- Another way to consider the exercise device in accordance with the invention is as one that includes a body defining a hollow cavity opening at a first edge of the body, a first grip arranged in connection with the body and adapted to be gripped by one or both hands of a user, and a second grip arranged in the cavity and adapted to be gripped by only one hand of the user.
- the first grip is arranged proximate the first edge and projects outwardly past an outer surface of the body.
- the body has a generally hemispherical shape that provides a better, safer, and more efficient exercise experience than traditional dumbbells.
- one or more cut-outs may be formed in a side wall of the body.
- Each cut-out may be formed partly in the hemispherical portion and partly in the tubular portion of the side wall of the body. Suitable dimensioning of the cut-outs is designed to enable the user to insert part of one of their hands through each cut-out and then over the rim in order to grip a portion of the device between the cut-out and the rim.
- the user can perform for example, a floor or swinging exercise, or can more easily carry the exercise device.
- the side wall of the body may be provided with a step and the opening into the cavity has a size greater than or equal to the outer diameter of the body at the step to enable multiple weighted exercise devices to be stacked one on top of another.
- the step may be provided in the hemispherical portion, in the tubular portion or between the hemispherical portion and the tubular portion.
- FIG. 1 is a perspective view of a first embodiment of a weighted exercise device in accordance with the invention
- FIG. 2 is a top view of the weighted exercise device shown in FIG. 1 ;
- FIG. 3 is a bottom view of the weighted exercise device shown in FIG. 1 ;
- FIG. 4 is a cross-sectional view of the weighted exercise device shown in FIG. 1 ;
- FIG. 5 is a cross-sectional view of a second embodiment of a weighted exercise device in accordance with the invention.
- FIG. 6 shows two stacked exercise devices
- FIG. 7 shows an embodiment with a rubberized coating
- FIG. 8 is a right side view of a third embodiment of a weighted exercise device in accordance with the invention.
- FIG. 9 is a left side view of the weighted exercise device shown in FIG. 8 ;
- FIG. 10 is a bottom view of the weighted exercise device shown in FIG. 8 ;
- FIG. 11 is a top view of the weighted exercise device shown in FIG. 8 ;
- FIG. 12 is a cross-sectional view of two of weighted exercise devices shown in FIG. 8 stacked one on top of another.
- a weighted exercise device in accordance with the invention is designated generally as 10 and includes a generally hemispherical main body 12 defining a hollow cavity 14 and having a rim 16 adjacent its upper edge 20 (the top edge 20 when the weighted exercise device is positioned as shown in FIG. 1 ).
- the body 12 has a generally hemispherical portion 12 a and a small extended or elongated portion (tubular portion) 12 b extending from the generally hemispherical portion 12 a (see FIGS. 1 and 4 ).
- Body 12 thus has a generally acorn shape.
- the extended or elongated portion 12 b is tubular in view of the formation of part of the cavity 14 therein.
- the rim 16 preferably extends around the entire circumference of the body 12 (see FIG. 1 ) and more particularly, is situated on the extended or elongated portion 12 b of the body 12 (see FIG. 4 ). Rim 16 may either be considered an integral part of the body 12 or a separate part that is connected to the body 12 .
- the outer surface of the body 12 is provided with a unique shape in view of the presence of the projecting rim 16 .
- the outer surface of the body 12 has a substantially hemispherical portion (in portion 12 a ), then has a generally cylindrical surface portion (in portion 12 b ) and then an outwardly projecting rounded portion (rim 16 ).
- the rim 16 projects outwardly in a radial direction past the extended or elongated portion 12 b , i.e., beyond the outer surface of this tubular portion of the body 12 .
- This unique shape is partially shown in FIG. 4 .
- the thickness of the tubular portion 12 b is preferably uniform so that the cylindrical surface portion does not taper inward.
- the size of the extended or elongated portion 12 b of the weighted exercise device 10 may be dependent on, for example, the size of the hands of the user intended to use the weighted exercise device 10 .
- the size of the extended or elongated portion 12 b also affects the size of the cavity 14 , i.e., a larger extended or elongated portion 12 b results in a larger cavity 14 .
- the weighted exercise device 10 should accommodate most users. However, a user with unusually large hands may prefer a weighted exercise device 10 that has a larger extended or elongated portion 12 b and thus a larger cavity 14 than a user with smaller hands.
- Different size weighted exercise devices 10 may be manufactured with different weights. The larger weights would be of larger size.
- a set of different-weight exercise devices 10 could be assembled together and sold as a unit.
- Rim 16 is preferably rounded and beveled (see FIG. 4 ), and serves as a hand grip for a user to grip or grasp the weighted exercise device 10 with one or two hands when performing an exercise.
- the rim 16 has a substantially semi-circular form thereby providing an easily grippable form for the user's hand.
- Rim 16 is therefore a first grip of the weighted exercise device 10 . Most often, the user would grip or grasp the rim 16 with both of their hands when performing an exercise, although the user could also grip or grasp the rim 16 with only one of their hands for certain exercises.
- a second grip of the weighted exercise device 10 is provided by a handle 18 that extends across the hollow cavity 14 formed in the hemispherical body 12 .
- Handle 18 is substantially cylindrical, or may be tubular, and is preferably rigid. Handle 18 may be formed integral with the body 12 or separated therefrom and then attached to the body 12 in a preferably permanent manner, e.g., by welding.
- Handle 18 may be positioned a distance inward from the top edge 20 of the hemispherical body 12 , i.e., recessed within the cavity 14 . Handle 18 is also spaced a distance from the bottom of the cavity 14 so that the user's fingers have room to pass freely around the handle 18 and grasp it comfortably.
- the recess distance varies depending, for example, on the size and weight of the weighted exercise device 10 (see FIG. 4 ). This distance may be determined during design of the weighted exercise device 10 in consideration of the location of the center of gravity of the weighted exercise device 10 . More specifically, in one embodiment, it is desirable for the handle 18 to be close to or at the center of gravity of the device. As such, when one of the user's hands is gripping the handle 18 , the center of gravity is close to where the hand is, thereby providing a safer and more balanced exercise experience.
- the center of gravity is away from the user's hands for performing certain exercises.
- an advantage of the recessing of the handle 18 in the cavity 14 is that the weighted exercise device 10 is thus stackable, i.e., multiple weighted exercise devices 10 may be stacked one on top of another with, in each adjacent pair of weighted exercise devices, a portion of an upper weighted exercise device sitting in the cavity 14 defined by a lower weighted exercise device. More than two devices could be stacked. A convenient space saving design is therefore provided.
- Handle 18 is optionally provided with a coating 24 on its outer surface to provide a better and/or more comfortable grip to the user (see FIG. 2 ).
- the coating 24 may be made of rubber, or any other material that improves the grip, and may be textured or grooved. Alternatively, the outer surface of the handle 18 itself may be textured or grooved to improve the user's grip thereof.
- the generally hemispherical body 12 also includes a slightly flattened area 22 at a bottom, i.e., encompassing the bottom edge, in order to enable the weighted exercise device 10 to be stably placed onto a flat horizontal surface.
- Flattened area 22 is not required to be completely flat, and it may just be tapered. Its presence enables the weighted exercise device to be balanced and rest upright, in the position shown in FIG. 4 , if placed carefully on a floor or other horizontal surface.
- the flattened area 22 also enables the user to do push-up type exercises, rotate one's hands, and/or rotate his body while exercising, thereby utilizing core muscles. This can be done with one device, where the user grips the one device with two hands, or this can be done with two devices, where the user grips one device in each hand.
- the outer surface of the rim 16 may be textured (as shown in FIG. 1 ) and/or an interval groove 26 may be arranged in connection with the rim 16 .
- FIG. 5 shows such a groove 26 having a generally semi-circular cross-section which is formed opposite or in the rim 16 .
- groove 26 has a smaller semi-circular form than the cross-sectional form of the entire rim 16 .
- the thickness of the rim 16 (in cross-section) is therefore varied, increasing from a smaller thickness adjacent the tubular portion of the extended and elongated portion 12 a to a larger thickness at the largest radius of the rim 16 and then decreasing to a smaller thickness at the top edge 20 of the body 12 (see FIG. 5 ).
- groove 26 may accommodate a thumb of the user while handling or lifting the weighted exercise device 10 so that the user is better able to handle the weighted exercise device 10 by placing the thumb on the inside of the body 12 and the remaining fingers around the projecting rim 16 on the outside of the body 12 .
- the surface of the groove 26 may be textured in the same manner as shown for the rim 16 in FIG. 1 . In this case, the rim 16 is more securely gripped between the thumb on the inside thereof and the remaining fingers on the outside thereof.
- the groove 26 serves as an indentation in the inner surface of the body 12 and thereby improves the ability of the user to grasp the rim 16 and exercise device 10 in its entirety, since their thumb and/or other fingers will be able to engage with, i.e., partly enter into, the groove 26 .
- the depth of the groove 26 may be preferably in the order of the thickness of an average human thumb or finger.
- the weighted exercise device 10 in any of its forms and shapes described above, may be used for a wide variety of exercises, only some of which are identified herein.
- the weighted exercise device 10 may be used as traditional dumbbells in pairs to perform bicep curls, clean and jerky movements, military presses, bench presses, or swinging type exercises typically performed with kettlebells.
- the weighted exercise device 10 may be used for floor exercises, such as push-ups, using either a single weighted exercise device with the user's two hands gripping the rim 16 or two weighted exercise devices 10 with each of the user's hands gripping the handle 18 of a respective weighted exercise device 10 .
- the weighted exercise device 10 may also be used for wrist and forearm rehabilitation exercises with the user grasping the handle 18 , positioning the flattened area 22 against a flat surface, and turning the weighted exercise device 10 to either side on the flat surface.
- the weighted exercise device 10 could be rotated and turn on the rim 16 .
- the weighted exercise device 10 can be used by a user, while standing or sitting, and for floor exercises because they are designed to be used for the same exercises that involve traditional dumbbells and kettlebells.
- the user when performing push-up type exercises, the user can rotate and pivot, and can shift his body weight. These actions utilize core and stabilization muscles thereby providing a highly efficient exercise for the user using the weighted exercise device 10 .
- the device of the present invention takes the place of both dumbbells and kettlebells.
- the weight of the weighted exercise device 10 is provided primarily by the hemispherical body 12 , along with a smaller contribution to the weight by the handle 18 .
- the body 12 is provided with a thickness and material composition to provide a desired weight, e.g., 1 lb, 2 lb, 5 lb or more. If the same material is used, the weighted exercise device is larger as the weight increases. With smaller weights, for example a 5 lb weight, the slight elongation to a slightly oval shape (see FIGS. 2 and 3 ) will ensure more space in the cavity 14 .
- Sets of weighted exercise devices 10 may be assembled with different weights of the weighted exercise devices, e.g., from 1 lb to about 15 lbs with increments of 1, 2 or 3 lb. Higher weights, such as 20 lb, 25 lb, 30 lb, 35 lb, 40 lb, and 50 lb or more can also be made.
- a mark or indication of the weight of each weighted exercise device in the set may be placed on the body 12 in an easily visible location. As the weights get heavier, the device has another advantage: because the device is generally hemispherical, the weight is evenly distributed and is easier and safer to handle. Moreover, the size is not as large as conventional dumbbells, thereby being easier to use, especially in pairs.
- the outer surface of the weighted exercise device 10 i.e., the outer surface of the body 12 and/or rim 16 , is rubberized and/or color-coded.
- Rubberizing the weighted exercise device 10 i.e., by providing a thin outer rubber-like coating 30 on the entire device
- the rubber coating on the outer surface of the body 12 and/or rim 16 prevents damage to surfaces against which the weighted exercise device 10 is used, e.g., flooring or furniture.
- a plastic material could be used for the coating 30 .
- the rubberized or rubber-like coating 30 on the groove 26 improves gripping by the user.
- Weighted exercise device 10 may be made from a single piece of cast iron or other similar, heavy density material.
- the casting process may be designed to provide the body 12 with the cavity 14 and rim 16 .
- the handle 18 may either be formed during the casting or formed separately and attached to opposed portions of the inner surface of the body 12 at the desired distance from the top edge 20 of the body 12 .
- the groove 26 may also be formed in the casting or molding. Casting is not the only manner in which the weighted exercise device 10 may be formed but is only an exemplifying method. One skilled in the art would readily understand how to manufacture the weighted exercise device 10 using other material processing techniques from the disclosure herein.
- FIGS. 8-12 another embodiment of a weighted exercise device in accordance with the invention is designated generally as 32 and includes a main body 34 defining a hollow cavity 36 and having a projecting rim 38 adjacent its upper edge 40 (the top edge 40 when the weighted exercise device 32 is positioned as shown in FIGS. 8 and 9 ).
- Main body 34 has a side wall 42 having a truncated or flattened hemispherical portion 42 a and an extended or elongated portion 42 b extending from the flattened hemispherical portion 42 a (see FIGS. 8 and 9 ).
- the extended or elongated portion 42 b is generally tubular, i.e., a tubular portion, and forms part of the cavity 36 therein.
- the main body 34 has a bottom wall 44 with a substantially flat and planar bottom surface 46 .
- the rim 38 preferably extends around the entire circumference of the body 34 (see FIGS. 10 and 11 ) and is situated on the extended or elongated portion 42 b of the body 34 (see FIGS. 8 and 9 ). Rim 38 may include the same features and incorporate the same modifications and variants as rim 16 of exercise device 10 described above, e.g., a groove on the inner side.
- the exercise device 32 also includes a handle 48 that extends across the hollow cavity 36 formed in the main body 34 (see FIG. 11 ).
- Handle 48 may include the same features and incorporate the same modifications and variants as handle 18 of exercise device 10 described above.
- Handle 48 may be positioned a distance inward from the top edge 40 of the main body 34 , i.e., recessed within the cavity 36 . Handle 48 is also spaced a distance from the bottom of the cavity 36 so that the user's fingers have room to pass freely around the handle 48 and grasp it comfortably.
- one or more cut-outs 50 are formed in the side wall 42 of the main body 34 .
- two cut-outs 50 are formed, each partly in the hemispherical portion 42 a of the side wall 42 and partly in the extended or elongated portion 42 b of the side wall 42 .
- Cut-outs 50 are generally oval and extend from a point below the handle 48 to a point above the handle 48 .
- Two cut-outs 50 may be provided on opposite sides of the main body 34 , as shown in FIGS. 8 and 9 , and may, but are not required to, align with one another. Cut-outs 50 may have a shape other than oval as shown, and may be provided in any number.
- Suitable dimensioning of the cut-outs 50 i.e., selection of their size, enables the user to insert a respective one of their hands through each cut-out 50 and over the rim 38 in order to grip a portion of the main body 34 between the cut-out 50 and the rim 38 .
- the user can perform exercises with their hand(s) in this position, e.g., floor or swinging exercises. This position also enables the user to more easily carry the exercise device 32 .
- the outer surface of the main body 34 is provided with a unique profile and shape in view of the presence of the projecting rim 38 and a step 52 formed in the side wall 42 between the flattened hemispherical portion 42 a and the extended or elongated portion 42 b (and which is traversed by the cut-outs 50 ). This unique shape is shown best in FIGS. 8 and 9 .
- Step 52 is formed to enable the hemispherical portion 42 a of one exercise device 32 to be positioned partly in the cavity 36 of another exercise device 32 , i.e., enable multiple exercise devices 32 to be stacked one on top of another as shown in FIG. 12 .
- the outer diameter of an outer-facing surface 54 of the hemispherical portion 42 b of the side wall 42 at the step 52 is the same as or slightly smaller than the inner diameter of the upper portion of the rim 38 adjacent the top edge 40 thereof.
- the height of the hemispherical portion 42 a i.e., the dimension from the flat bottom surface 46 to the bottom-facing surface 56 of the step 52 , is preferably substantially the same as the distance between the upper edge of the handle 48 and the top edge 40 of the main body 34 (see FIG. 12 ).
- the flat bottom surface 46 of one exercise device 32 will rest on the handle 48 of another while the step 52 of that same exercise device 32 will rest on the top edge 40 of the other exercise device, i.e., a dual point of contact fitting which provides significant stabilization benefits.
- exercise device 32 is similar to exercise device 10 , including having an internal groove 26 arranged in connection with the rim 38 and the manner of use by gripping rim 38 and handle 48 .
- all of the features of exercise device 10 may be incorporated into exercise device 32 , and vice versa.
- a rubber-like coating (not shown) may be provided on the outer surface of the weighted exercise device 32 , i.e., the outer surface of the main body 34 , the rim 38 and/or the inner surface of the main body 34 including the groove in the rim 38 . Rubberizing the weighted exercise device 32 avoids metal-to-metal contact when stacking the exercise devices 32 .
- the weighted exercise devices 10 described above constitute an improvement over prior art weighted exercise devices in that they have two grips or gripping portions, one defined by the rim 16 (with or without groove 26 ) and another defined by the handle 18 .
- the presence of these two gripping portions significantly increases the functionality of the weighted exercise device 10 because while a weight with a handle intended to be gripped by one hand of a user enables a limited number of exercises to be performed and a weight with a grip intended to be gripped by both hands of the user enables another limited number of different exercises to be performed, by providing both types of grips in a single weighted exercise devices, all of the exercises using either type of grip can be performed using only the weighted exercise device in accordance with the invention.
- the weighted exercise devices of the present invention provide an advantage over traditional dumbbells in that they are substantially hemispherically shaped, which provides a symmetrical device, wherein the weight is substantially evenly distributed circumferentially around the handle 18 as compared to a conventional dumbbell wherein the weight is concentrated on two sides of a gripping bar portion. This is an important distinction for certain exercises in order to prevent injury, particularly for exercises where the weight is lifted above the head.
- the exercise device of the present invention has a symmetrical, circumferentially distributed weight, and provides a safer exercise experience.
- the weighted exercise device of the present invention can be used as both a kettlebell and a traditional dumbbell. Also, the weighted exercise devices of the present invention can be used with the outer rounded portion on the floor to pivot and rotate while the handle 18 is being gripped by the user so as to more efficiently use the core muscles in a way that either kettlebells or dumbbells cannot.
- the weighted exercise device of the present invention can also be used more safely as a swinging device since there are no outwardly projecting members (as in conventional dumbbells or kettlebells).
- the rounded substantially hemispherical shape provides a smooth curved outer surface that reduces the possibility of injury to the user when using the weights while performing a swinging exercise, or when using the weights in an aerobic class or the like. Users can more safely use the device to perform a plethora of exercises without having to change devices.
- the present invention therefore is a weighted exercise device that improves on existing weighted exercise devices by expanding possible uses thereof thereby increasing the number of exercises that can be performed with the weighted exercise device and improving safety for the user.
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Abstract
Description
- This application is a continuation-in-part of U.S. patent application Ser. No. 13/305,179 filed Nov. 28, 2011, incorporated by reference herein.
- The present invention relates generally to a weighted device for use in exercising, and more particularly to generally hemispherical weighted exercise devices for use in exercising and which can be gripped in two or more different ways to thereby enable their use for a wide range of exercises.
- The present invention also relates to a stackable weighted exercise device.
- Dumbbells are often used in muscle-building or muscle-toning exercises. However, a traditional dumbbell, i.e., a pair of weights connected by a short bar serving as a handle, is not appropriate for all exercises and alternative forms of weights have been developed for different exercises.
- One weighted exercise device that was considered to be particularly useful for gymnastic exercises is disclosed in U.S. Pat. No. 113,966 (Ballou) and comprises a spherical or spheroidal lower part that is elongated or extended on one side. The weighted exercise device includes a hollow cavity and includes an opening in the elongated or extended part leading into the cavity. A handle extends across the cavity and is positioned to enable a user to extend their hand into the cavity and grasp the handle. The only manner in which this weighted exercise device may be used is by gripping the handle
- Other weighted exercise devices include those disclosed in U.S. Pat. Nos. 4,813,669; 4,880,218; and 4,900,016 (all to Caruthers).
- Another exercise device is a Bosu balance trainer that has a rim that can be gripped. This balance trainer is constructed of rubber and plastic and is not weighted.
- It is an object of the present invention to provide a weighted device for use in exercising.
- A weighted exercise device in accordance with the invention includes a body defining a hollow cavity opening at a first edge of the body. The body has a hemispherical portion and a tubular portion extending to one side of the hemispherical portion. A rim is arranged on the tubular portion of the body and projects outwardly past an outer surface of the body. A handle is arranged in the cavity. The rim provides a first grip for a user during use of the exercise device and the handle provides a second grip for the user during use of the exercise device.
- Another way to consider the exercise device in accordance with the invention is as one that includes a body defining a hollow cavity opening at a first edge of the body, a first grip arranged in connection with the body and adapted to be gripped by one or both hands of a user, and a second grip arranged in the cavity and adapted to be gripped by only one hand of the user. The first grip is arranged proximate the first edge and projects outwardly past an outer surface of the body.
- By providing two different grips on the same weighted exercise device, a user can perform a larger variety of exercises using the invention in comparison to exercise devices that include only a single type of grip.
- The body has a generally hemispherical shape that provides a better, safer, and more efficient exercise experience than traditional dumbbells.
- To enable yet additional grips on the same weighted exercise device, and thus increase the variety of exercises that can be performed using the invention, one or more cut-outs may be formed in a side wall of the body. Each cut-out may be formed partly in the hemispherical portion and partly in the tubular portion of the side wall of the body. Suitable dimensioning of the cut-outs is designed to enable the user to insert part of one of their hands through each cut-out and then over the rim in order to grip a portion of the device between the cut-out and the rim. When gripping the device with one or both hands in this manner, the user can perform for example, a floor or swinging exercise, or can more easily carry the exercise device.
- In any of the embodiments of the weighted exercise device described above, the side wall of the body may be provided with a step and the opening into the cavity has a size greater than or equal to the outer diameter of the body at the step to enable multiple weighted exercise devices to be stacked one on top of another. The step may be provided in the hemispherical portion, in the tubular portion or between the hemispherical portion and the tubular portion.
- Other objects of the present invention are attained in accordance with the weighted exercise device of the present invention which are described hereinafter.
- The invention, together with further objects and advantages thereof, may best be understood by reference to the following description taken in conjunction with the accompanying drawings, wherein like reference numerals identify like elements.
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FIG. 1 is a perspective view of a first embodiment of a weighted exercise device in accordance with the invention; -
FIG. 2 is a top view of the weighted exercise device shown inFIG. 1 ; -
FIG. 3 is a bottom view of the weighted exercise device shown inFIG. 1 ; -
FIG. 4 is a cross-sectional view of the weighted exercise device shown inFIG. 1 ; -
FIG. 5 is a cross-sectional view of a second embodiment of a weighted exercise device in accordance with the invention; -
FIG. 6 shows two stacked exercise devices; -
FIG. 7 shows an embodiment with a rubberized coating; -
FIG. 8 is a right side view of a third embodiment of a weighted exercise device in accordance with the invention; -
FIG. 9 is a left side view of the weighted exercise device shown inFIG. 8 ; -
FIG. 10 is a bottom view of the weighted exercise device shown inFIG. 8 ; -
FIG. 11 is a top view of the weighted exercise device shown inFIG. 8 ; and -
FIG. 12 is a cross-sectional view of two of weighted exercise devices shown inFIG. 8 stacked one on top of another. - Referring to the accompanying drawings wherein like reference numerals refer to the same or similar elements, a weighted exercise device in accordance with the invention is designated generally as 10 and includes a generally hemispherical
main body 12 defining ahollow cavity 14 and having arim 16 adjacent its upper edge 20 (thetop edge 20 when the weighted exercise device is positioned as shown inFIG. 1 ). By being generally hemispherical, it is preferred that thebody 12 has a generallyhemispherical portion 12 a and a small extended or elongated portion (tubular portion) 12 b extending from the generallyhemispherical portion 12 a (seeFIGS. 1 and 4 ).Body 12 thus has a generally acorn shape. The extended orelongated portion 12 b is tubular in view of the formation of part of thecavity 14 therein. - The
rim 16 preferably extends around the entire circumference of the body 12 (seeFIG. 1 ) and more particularly, is situated on the extended orelongated portion 12 b of the body 12 (seeFIG. 4 ).Rim 16 may either be considered an integral part of thebody 12 or a separate part that is connected to thebody 12. - The outer surface of the
body 12 is provided with a unique shape in view of the presence of the projectingrim 16. At the bottom edge, the outer surface of thebody 12 has a substantially hemispherical portion (inportion 12 a), then has a generally cylindrical surface portion (inportion 12 b) and then an outwardly projecting rounded portion (rim 16). As such, therim 16 projects outwardly in a radial direction past the extended orelongated portion 12 b, i.e., beyond the outer surface of this tubular portion of thebody 12. This unique shape is partially shown inFIG. 4 . The thickness of thetubular portion 12 b is preferably uniform so that the cylindrical surface portion does not taper inward. - The size of the extended or
elongated portion 12 b of theweighted exercise device 10 may be dependent on, for example, the size of the hands of the user intended to use theweighted exercise device 10. The size of the extended orelongated portion 12 b also affects the size of thecavity 14, i.e., a larger extended orelongated portion 12 b results in alarger cavity 14. Theweighted exercise device 10 should accommodate most users. However, a user with unusually large hands may prefer aweighted exercise device 10 that has a larger extended orelongated portion 12 b and thus alarger cavity 14 than a user with smaller hands. Different sizeweighted exercise devices 10 may be manufactured with different weights. The larger weights would be of larger size. A set of different-weight exercise devices 10 could be assembled together and sold as a unit. -
Rim 16 is preferably rounded and beveled (seeFIG. 4 ), and serves as a hand grip for a user to grip or grasp theweighted exercise device 10 with one or two hands when performing an exercise. In cross-section, therim 16 has a substantially semi-circular form thereby providing an easily grippable form for the user's hand. -
Rim 16 is therefore a first grip of theweighted exercise device 10. Most often, the user would grip or grasp therim 16 with both of their hands when performing an exercise, although the user could also grip or grasp therim 16 with only one of their hands for certain exercises. - A second grip of the
weighted exercise device 10 is provided by ahandle 18 that extends across thehollow cavity 14 formed in thehemispherical body 12.Handle 18 is substantially cylindrical, or may be tubular, and is preferably rigid.Handle 18 may be formed integral with thebody 12 or separated therefrom and then attached to thebody 12 in a preferably permanent manner, e.g., by welding. -
Handle 18 may be positioned a distance inward from thetop edge 20 of thehemispherical body 12, i.e., recessed within thecavity 14.Handle 18 is also spaced a distance from the bottom of thecavity 14 so that the user's fingers have room to pass freely around thehandle 18 and grasp it comfortably. - The recess distance varies depending, for example, on the size and weight of the weighted exercise device 10 (see
FIG. 4 ). This distance may be determined during design of theweighted exercise device 10 in consideration of the location of the center of gravity of theweighted exercise device 10. More specifically, in one embodiment, it is desirable for thehandle 18 to be close to or at the center of gravity of the device. As such, when one of the user's hands is gripping thehandle 18, the center of gravity is close to where the hand is, thereby providing a safer and more balanced exercise experience. - On the other hand, when the user is using the
rim 16 as the grip, and using both hands as in a preferred use, the center of gravity is away from the user's hands for performing certain exercises. - As shown in
FIG. 6 , an advantage of the recessing of thehandle 18 in thecavity 14 is that theweighted exercise device 10 is thus stackable, i.e., multipleweighted exercise devices 10 may be stacked one on top of another with, in each adjacent pair of weighted exercise devices, a portion of an upper weighted exercise device sitting in thecavity 14 defined by a lower weighted exercise device. More than two devices could be stacked. A convenient space saving design is therefore provided. -
Handle 18 is optionally provided with acoating 24 on its outer surface to provide a better and/or more comfortable grip to the user (seeFIG. 2 ). Thecoating 24 may be made of rubber, or any other material that improves the grip, and may be textured or grooved. Alternatively, the outer surface of thehandle 18 itself may be textured or grooved to improve the user's grip thereof. - Referring now in particular to
FIGS. 3 and 4 , the generallyhemispherical body 12 also includes a slightly flattenedarea 22 at a bottom, i.e., encompassing the bottom edge, in order to enable theweighted exercise device 10 to be stably placed onto a flat horizontal surface. Flattenedarea 22 is not required to be completely flat, and it may just be tapered. Its presence enables the weighted exercise device to be balanced and rest upright, in the position shown inFIG. 4 , if placed carefully on a floor or other horizontal surface. The flattenedarea 22 also enables the user to do push-up type exercises, rotate one's hands, and/or rotate his body while exercising, thereby utilizing core muscles. This can be done with one device, where the user grips the one device with two hands, or this can be done with two devices, where the user grips one device in each hand. - Variations to the shape and/or form of the
weighted exercise device 10 described above are envisioned. For example, the outer surface of therim 16 may be textured (as shown inFIG. 1 ) and/or aninterval groove 26 may be arranged in connection with therim 16.FIG. 5 shows such agroove 26 having a generally semi-circular cross-section which is formed opposite or in therim 16. - In cross-section,
groove 26 has a smaller semi-circular form than the cross-sectional form of theentire rim 16. The thickness of the rim 16 (in cross-section) is therefore varied, increasing from a smaller thickness adjacent the tubular portion of the extended andelongated portion 12 a to a larger thickness at the largest radius of therim 16 and then decreasing to a smaller thickness at thetop edge 20 of the body 12 (seeFIG. 5 ). - In use, groove 26 may accommodate a thumb of the user while handling or lifting the
weighted exercise device 10 so that the user is better able to handle theweighted exercise device 10 by placing the thumb on the inside of thebody 12 and the remaining fingers around the projectingrim 16 on the outside of thebody 12. The surface of thegroove 26 may be textured in the same manner as shown for therim 16 inFIG. 1 . In this case, therim 16 is more securely gripped between the thumb on the inside thereof and the remaining fingers on the outside thereof. - More generally, depending on the size and depth of the groove, the
groove 26 serves as an indentation in the inner surface of thebody 12 and thereby improves the ability of the user to grasp therim 16 andexercise device 10 in its entirety, since their thumb and/or other fingers will be able to engage with, i.e., partly enter into, thegroove 26. As such, the depth of thegroove 26 may be preferably in the order of the thickness of an average human thumb or finger. - The
weighted exercise device 10, in any of its forms and shapes described above, may be used for a wide variety of exercises, only some of which are identified herein. For example, theweighted exercise device 10 may be used as traditional dumbbells in pairs to perform bicep curls, clean and jerky movements, military presses, bench presses, or swinging type exercises typically performed with kettlebells. In addition, theweighted exercise device 10 may be used for floor exercises, such as push-ups, using either a single weighted exercise device with the user's two hands gripping therim 16 or twoweighted exercise devices 10 with each of the user's hands gripping thehandle 18 of a respectiveweighted exercise device 10. - The
weighted exercise device 10 may also be used for wrist and forearm rehabilitation exercises with the user grasping thehandle 18, positioning the flattenedarea 22 against a flat surface, and turning theweighted exercise device 10 to either side on the flat surface. Theweighted exercise device 10 could be rotated and turn on therim 16. - Furthermore, the
weighted exercise device 10 can be used by a user, while standing or sitting, and for floor exercises because they are designed to be used for the same exercises that involve traditional dumbbells and kettlebells. For example, when performing push-up type exercises, the user can rotate and pivot, and can shift his body weight. These actions utilize core and stabilization muscles thereby providing a highly efficient exercise for the user using theweighted exercise device 10. The device of the present invention takes the place of both dumbbells and kettlebells. - The weight of the
weighted exercise device 10 is provided primarily by thehemispherical body 12, along with a smaller contribution to the weight by thehandle 18. To this end, thebody 12 is provided with a thickness and material composition to provide a desired weight, e.g., 1 lb, 2 lb, 5 lb or more. If the same material is used, the weighted exercise device is larger as the weight increases. With smaller weights, for example a 5 lb weight, the slight elongation to a slightly oval shape (seeFIGS. 2 and 3 ) will ensure more space in thecavity 14. Sets ofweighted exercise devices 10 may be assembled with different weights of the weighted exercise devices, e.g., from 1 lb to about 15 lbs with increments of 1, 2 or 3 lb. Higher weights, such as 20 lb, 25 lb, 30 lb, 35 lb, 40 lb, and 50 lb or more can also be made. A mark or indication of the weight of each weighted exercise device in the set may be placed on thebody 12 in an easily visible location. As the weights get heavier, the device has another advantage: because the device is generally hemispherical, the weight is evenly distributed and is easier and safer to handle. Moreover, the size is not as large as conventional dumbbells, thereby being easier to use, especially in pairs. - In another embodiment, as shown in
FIG. 7 , the outer surface of theweighted exercise device 10, i.e., the outer surface of thebody 12 and/orrim 16, is rubberized and/or color-coded. Rubberizing the weighted exercise device 10 (i.e., by providing a thin outer rubber-like coating 30 on the entire device) enables two or more of theweighted exercise devices 10 to be stacked together (as inFIG. 6 ) without allowing metal-to-metal contact. Further, the rubber coating on the outer surface of thebody 12 and/orrim 16 prevents damage to surfaces against which theweighted exercise device 10 is used, e.g., flooring or furniture. Instead of a rubber material, a plastic material could be used for thecoating 30. In one embodiment, is possible to only color therim 16 so that different colored rims are provided in a set of weighted exercise devices. A mark or indication of the weight of each weighted exercise device may be placed on the colored rim. - The rubberized or rubber-
like coating 30 on thegroove 26 improves gripping by the user. -
Weighted exercise device 10 may be made from a single piece of cast iron or other similar, heavy density material. The casting process may be designed to provide thebody 12 with thecavity 14 andrim 16. Thehandle 18 may either be formed during the casting or formed separately and attached to opposed portions of the inner surface of thebody 12 at the desired distance from thetop edge 20 of thebody 12. Thegroove 26 may also be formed in the casting or molding. Casting is not the only manner in which theweighted exercise device 10 may be formed but is only an exemplifying method. One skilled in the art would readily understand how to manufacture theweighted exercise device 10 using other material processing techniques from the disclosure herein. - Referring now to
FIGS. 8-12 , another embodiment of a weighted exercise device in accordance with the invention is designated generally as 32 and includes amain body 34 defining ahollow cavity 36 and having a projectingrim 38 adjacent its upper edge 40 (thetop edge 40 when theweighted exercise device 32 is positioned as shown inFIGS. 8 and 9 ). -
Main body 34 has aside wall 42 having a truncated or flattenedhemispherical portion 42 a and an extended orelongated portion 42 b extending from the flattenedhemispherical portion 42 a (seeFIGS. 8 and 9 ). The extended orelongated portion 42 b is generally tubular, i.e., a tubular portion, and forms part of thecavity 36 therein. At the bottom of theside wall 42, themain body 34 has abottom wall 44 with a substantially flat and planarbottom surface 46. - The
rim 38 preferably extends around the entire circumference of the body 34 (seeFIGS. 10 and 11 ) and is situated on the extended orelongated portion 42 b of the body 34 (seeFIGS. 8 and 9 ).Rim 38 may include the same features and incorporate the same modifications and variants asrim 16 ofexercise device 10 described above, e.g., a groove on the inner side. - The
exercise device 32 also includes ahandle 48 that extends across thehollow cavity 36 formed in the main body 34 (seeFIG. 11 ).Handle 48 may include the same features and incorporate the same modifications and variants as handle 18 ofexercise device 10 described above. -
Handle 48 may be positioned a distance inward from thetop edge 40 of themain body 34, i.e., recessed within thecavity 36.Handle 48 is also spaced a distance from the bottom of thecavity 36 so that the user's fingers have room to pass freely around thehandle 48 and grasp it comfortably. - To increase the number of uses of
exercise device 32, one or more cut-outs 50 are formed in theside wall 42 of themain body 34. In the embodiment illustrated inFIGS. 8-12 , two cut-outs 50 are formed, each partly in thehemispherical portion 42 a of theside wall 42 and partly in the extended orelongated portion 42 b of theside wall 42. - Cut-
outs 50 are generally oval and extend from a point below thehandle 48 to a point above thehandle 48. Two cut-outs 50 may be provided on opposite sides of themain body 34, as shown inFIGS. 8 and 9 , and may, but are not required to, align with one another. Cut-outs 50 may have a shape other than oval as shown, and may be provided in any number. - Suitable dimensioning of the cut-
outs 50, i.e., selection of their size, enables the user to insert a respective one of their hands through each cut-out 50 and over therim 38 in order to grip a portion of themain body 34 between the cut-out 50 and therim 38. The user can perform exercises with their hand(s) in this position, e.g., floor or swinging exercises. This position also enables the user to more easily carry theexercise device 32. - The outer surface of the
main body 34 is provided with a unique profile and shape in view of the presence of the projectingrim 38 and astep 52 formed in theside wall 42 between the flattenedhemispherical portion 42 a and the extended orelongated portion 42 b (and which is traversed by the cut-outs 50). This unique shape is shown best inFIGS. 8 and 9 . -
Step 52 is formed to enable thehemispherical portion 42 a of oneexercise device 32 to be positioned partly in thecavity 36 of anotherexercise device 32, i.e., enablemultiple exercise devices 32 to be stacked one on top of another as shown inFIG. 12 . To provide this partly nesting configuration, the outer diameter of an outer-facingsurface 54 of thehemispherical portion 42 b of theside wall 42 at thestep 52 is the same as or slightly smaller than the inner diameter of the upper portion of therim 38 adjacent thetop edge 40 thereof. - To aid in the secure and stable stacking of
multiple exercise devices 32, the height of thehemispherical portion 42 a, i.e., the dimension from theflat bottom surface 46 to the bottom-facingsurface 56 of thestep 52, is preferably substantially the same as the distance between the upper edge of thehandle 48 and thetop edge 40 of the main body 34 (seeFIG. 12 ). In this case, theflat bottom surface 46 of oneexercise device 32 will rest on thehandle 48 of another while thestep 52 of thatsame exercise device 32 will rest on thetop edge 40 of the other exercise device, i.e., a dual point of contact fitting which provides significant stabilization benefits. - In other respects, both constructional and use,
exercise device 32 is similar to exercisedevice 10, including having aninternal groove 26 arranged in connection with therim 38 and the manner of use by grippingrim 38 and handle 48. As such, all of the features ofexercise device 10 may be incorporated intoexercise device 32, and vice versa. For example, a rubber-like coating (not shown) may be provided on the outer surface of theweighted exercise device 32, i.e., the outer surface of themain body 34, therim 38 and/or the inner surface of themain body 34 including the groove in therim 38. Rubberizing theweighted exercise device 32 avoids metal-to-metal contact when stacking theexercise devices 32. - The
weighted exercise devices 10 described above constitute an improvement over prior art weighted exercise devices in that they have two grips or gripping portions, one defined by the rim 16 (with or without groove 26) and another defined by thehandle 18. The presence of these two gripping portions significantly increases the functionality of theweighted exercise device 10 because while a weight with a handle intended to be gripped by one hand of a user enables a limited number of exercises to be performed and a weight with a grip intended to be gripped by both hands of the user enables another limited number of different exercises to be performed, by providing both types of grips in a single weighted exercise devices, all of the exercises using either type of grip can be performed using only the weighted exercise device in accordance with the invention. - The weighted exercise devices of the present invention provide an advantage over traditional dumbbells in that they are substantially hemispherically shaped, which provides a symmetrical device, wherein the weight is substantially evenly distributed circumferentially around the
handle 18 as compared to a conventional dumbbell wherein the weight is concentrated on two sides of a gripping bar portion. This is an important distinction for certain exercises in order to prevent injury, particularly for exercises where the weight is lifted above the head. The exercise device of the present invention has a symmetrical, circumferentially distributed weight, and provides a safer exercise experience. - The weighted exercise device of the present invention can be used as both a kettlebell and a traditional dumbbell. Also, the weighted exercise devices of the present invention can be used with the outer rounded portion on the floor to pivot and rotate while the
handle 18 is being gripped by the user so as to more efficiently use the core muscles in a way that either kettlebells or dumbbells cannot. The weighted exercise device of the present invention can also be used more safely as a swinging device since there are no outwardly projecting members (as in conventional dumbbells or kettlebells). The rounded substantially hemispherical shape provides a smooth curved outer surface that reduces the possibility of injury to the user when using the weights while performing a swinging exercise, or when using the weights in an aerobic class or the like. Users can more safely use the device to perform a plethora of exercises without having to change devices. - The present invention therefore is a weighted exercise device that improves on existing weighted exercise devices by expanding possible uses thereof thereby increasing the number of exercises that can be performed with the weighted exercise device and improving safety for the user.
- While particular embodiments of the invention have been shown and described, it will be obvious to those skilled in the art that changes and modifications may be made without departing from the invention in its broader aspects, and, therefore, the aim in the appended claims is to cover all such changes and modifications as fall within the true spirit and scope of the invention.
Claims (20)
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US7972250B2 (en) | 2008-09-18 | 2011-07-05 | Kenn Viselman | Exercise training tool |
US7585262B1 (en) | 2008-10-27 | 2009-09-08 | Vladimir Vayntraub | Convex push-up handles |
US20100130337A1 (en) * | 2008-11-25 | 2010-05-27 | Jeffrey Stewart | Exercise device |
USD616949S1 (en) | 2009-07-27 | 2010-06-01 | Wen-Ching Wang | Kettlebell |
US8012069B2 (en) * | 2009-07-30 | 2011-09-06 | Power Block Holdings, Inc. | Selectorized dumbbell having or convertible into kettlebell configuration |
USD651671S1 (en) * | 2011-04-19 | 2012-01-03 | Exemplar Design, Llc | Medicine ball |
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2012
- 2012-09-14 US US13/618,749 patent/US8454485B1/en active Active
-
2013
- 2013-06-03 US US13/908,344 patent/US20130267393A1/en not_active Abandoned
-
2014
- 2014-03-24 US US14/223,910 patent/US9011300B2/en active Active
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US20150231440A1 (en) * | 2011-12-22 | 2015-08-20 | Preston Nelson | Top-loading adjustable weight kettlebell system |
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US20170007878A1 (en) * | 2014-01-31 | 2017-01-12 | Heinz Kettler Gmbh & Co., Kg | Exercise apparatus |
US9192814B1 (en) * | 2014-09-17 | 2015-11-24 | Joshua David Smart | Transformable push-up assembly and method of use thereof |
USD805140S1 (en) * | 2016-06-20 | 2017-12-12 | Leon Hodes | Exercise weight |
US10220243B2 (en) * | 2016-10-27 | 2019-03-05 | Christian Koegel | Exercise system |
USRE49009E1 (en) * | 2016-11-03 | 2022-04-05 | Beto Engineering & Marketing Co., Ltd. | Adjustable exercise device |
US20180117387A1 (en) * | 2016-11-03 | 2018-05-03 | Beto Engineering & Marketing Co., Ltd. | Adjustable exercise device |
US10420978B2 (en) * | 2016-11-03 | 2019-09-24 | Beto Engineering & Marketing Co., Ltd. | Adjustable exercise device |
IT201700042074A1 (en) * | 2017-04-14 | 2018-10-14 | Reaxing Srl | MULTIFUNCTION SPORTS TOOL |
USD866685S1 (en) * | 2017-08-17 | 2019-11-12 | Y Bell Group Pty Ltd | Exercise device |
USD865880S1 (en) * | 2017-08-17 | 2019-11-05 | Y Bell Group Pty Ltd | Exercise device |
US20210007923A1 (en) * | 2018-03-13 | 2021-01-14 | Body Organics Pty Ltd | Pressure applicator assembly for exercise and rehabilitation |
US20220126159A1 (en) * | 2020-10-23 | 2022-04-28 | Richard C. Petek | Stackable weight |
US11957949B2 (en) * | 2020-10-23 | 2024-04-16 | Richard C. Petek | Stackable weight |
Also Published As
Publication number | Publication date |
---|---|
US8454485B1 (en) | 2013-06-04 |
US20130267393A1 (en) | 2013-10-10 |
US20140206509A1 (en) | 2014-07-24 |
US9011300B2 (en) | 2015-04-21 |
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