DE202020106895U1 - Barbell - Google Patents

Abstract

A dumbbell bar (10), which extends along a longitudinal axis (X) of the dumbbell bar (10), for training different muscle groups of a user
two weight plate supports (13), which are located at the opposite ends of the weight bar (10) on the longitudinal axis (X) and are configured to be able to hold weights, in particular in the form of weight plates,
at least two grip elements (12), which are located on the longitudinal axis (X) within the two weight plate supports (13) and are configured to serve as handles for the user,
wherein the grip elements (12) are arranged movably on the dumbbell bar (10) at least translationally along the longitudinal axis (X) during use of the dumbbell bar.

Description

The invention relates to a dumbbell bar, in particular a barbell bar, for the targeted training of different muscle groups of a user.

Dumbbells in various forms for the specific training of individual muscle groups of an athlete are known from the sport and fitness sector. One of the most common forms is the so-called barbell, which is typically used for exercises such as bench press, deadlift, squat or similar.

A barbell consists of a bar and weights of different weights (weight plates), which are pushed onto so-called weight plate rests and attached with a fixation such as a clip or the like. The weight plates are round discs with a hole in the middle, the cross section of the hole corresponding to the cross section of the weight plate supports and being slightly larger than this, so that the weight plates can be attached to the weight plate support. Using the variably mountable weights, the barbell can be adapted to the needs of the individual (athlete) and the different exercises.

The weight plate rests are located at the outer ends of the bar. Furthermore, the barbell has two sections where the exercising person can better grip the barbell. For this purpose, these grip sections are usually slightly roughened in order to improve the grip between the hand and the barbell and to reduce the risk of slipping.

The aim of the present invention is to optimize such a dumbbell bar so that the efficiency of training with the dumbbell bar can be further increased for the corresponding athlete and thereby individual muscle groups can be trained even more specifically and better.

This goal is achieved by the dumbbell bar according to the invention according to the main claim.

A dumbbell bar according to the invention for training different muscle groups of an athlete extends along a longitudinal axis. It has two weight plate supports and two grip elements. The weight plate supports are arranged at the opposite ends of the weight bar on the longitudinal axis and are configured to be able to accommodate weights, in particular in the form of weight plates. The grip elements are configured to serve as grips for the exercising person (user) and are both located within the two weight plate rests of the barbell.

The grip elements are arranged on the dumbbell bar so that they can move at least translationally along the longitudinal axis of the bar, so that the athlete can move the grip elements along the longitudinal axis, if desired also during use.

Due to the translational movement of the grip elements on the barbell, the athlete can bring the grip elements together in the direction of the middle of the barbell when lifting the barbell, e.g. when doing a bench press, whereby the contraction in the target muscle (e.g. chest muscles) is triggered to the maximum and thus more efficient training can be ensured than with conventional dumbbells.

In an advantageous embodiment of the invention, the grip elements completely enclose the dumbbell bar as sleeves or sockets. This is the case, for example, when the grip elements are designed essentially as hollow cylinders and the inner hole of the grip elements has a slightly larger cross section than the likewise round dumbbell bar. This has the advantage that the grip element can be comfortably grasped by the athlete and, due to the closed geometry, has greater stability than a solution with non-closed geometry, that is, for example, with an opening along the hollow cylinder.

Another advantageous embodiment of the invention is one in which the dumbbell bar is divided into two areas. These each extend from the center of the dumbbell bar along the longitudinal axis to the respective opposite ends of the dumbbell bar, that is to say in the direction of the weight plate supports located there, and have threads running in opposite directions to one another. One grip element is arranged in each area. The handle elements can be moved along the longitudinal axis of the dumbbell bar by a corresponding mounting between the handle elements and the thread.

This embodiment has the advantage that it is both a robust and easy to manufacture and therefore favorable design that enables the translational movement of the grip elements to be implemented on the dumbbell bar. The robustness of the barbell is particularly relevant when high weights are used during training, which increases the load on the barbell.

This embodiment is particularly advantageous when the two threads are symmetrical run to each other, so have the same thread pitch. This has the advantage that the movement of the two grip elements runs synchronously with one another and thus the load on the muscle groups of the athlete is balanced. This embodiment is described in more detail in the accompanying drawings.

This embodiment is also advantageous if the opposing threads are applied as external threads on the dumbbell bar. In this way, due to the simple implementation of the attachment on the dumbbell bar, an inexpensive and robust implementation of a dumbbell bar according to the invention can be implemented.

In a further advantageous embodiment of the invention, the two weight plate rests are mounted on the weight bar in such a way that the weight plates, which are mounted on the weight plate rests, can rotate about the longitudinal axis of the weight bar. The storage can take place, for example, by ball bearings or needle bearings.

For some exercises with the dumbbell, the barbell has to be turned by the athlete so that it rotates around its own longitudinal axis. The storage of the barbell support has the advantage that the weight of the barbell is decoupled from the rotation of the barbell and the athlete does not have to rotate the entire weight of the barbell when the barbell is rotated. Thus, the wrists can be protected. In embodiments in which the rest of the dumbbell bar rotates for translatory movement of the handle elements, the movement of the handle elements can be facilitated by mounting the weight plate rests on the dumbbell bar (see comments on 1 and 2 ).

In a further embodiment of the invention, the dumbbell bar has at least one linear guide, which is provided so that it enables the translatory movement of the grip elements on the dumbbell bar along the longitudinal axis. In this way, a structurally simple and inexpensive solution for moving the handle elements can be implemented.

In a further advantageous embodiment of the invention, the dumbbell bar consists of at least two structurally separable parts. These parts are configured in such a way that they can be firmly connected to one another to obtain the barbell. The connection can be ensured, for example, by means of a threaded bolt which can be screwed into an internal thread of the at least two parts. The internal thread is located at the end of the part of the barbell at which it is to be connected to another part of the barbell. This embodiment has the advantage that the dumbbell bar can be easily dismantled and transported in a simplified manner in this way.

In a further embodiment of the invention, the dumbbell bar has at least one elastic element, which is provided to influence the translational movement of the grip elements along the dumbbell bar. The elastic element can for example be designed as a rubber or spring element, which is arranged between the grip elements and another part of the barbell that the movement of the grip elements towards the middle of the barbell is made more difficult and is simplified in the direction of the ends of the barbell to enable even more specific training of the muscle groups. It is also conceivable to provide the elastic element between the two grip elements.

In a further advantageous embodiment of the invention, the grip elements have at least one fixing element which is provided to fix them in at least one fixed position along the longitudinal axis on the dumbbell bar in order to at least temporarily prevent movement in the translational direction. In this way, the dumbbell can be temporarily converted into a conventional dumbbell with rigid, immovable grip elements, if this is advantageous for a particular exercise. The fixing element can be designed as a bolt, for example, which is inserted into openings provided for this purpose in the thread of the dumbbell bar and thus fixes the position of the grip elements on the dumbbell bar.

If several fixation options are provided along the barbell to fix the grip elements in different positions, the distance between the grip elements can be adjusted and the dumbbell can be adapted to different physical requirements, for example the length of the athlete's arms.

In a further advantageous embodiment of the invention, desired maximum positions of the grip elements can be defined by at least one limiting element, so that the grip elements can only be moved translationally along the longitudinal axis on the dumbbell bar up to the limiting element.

This embodiment has the advantage that a limiting element can be used to define a maximum and minimum distance between the grip elements. The closer the grip elements are brought together, the more difficult it is for the athlete to maintain the balance of the dumbbell. In contrast, if the distance between the grip elements is too great, the athlete may no longer be able to muster the strength to hold the dumbbell. The delimitation elements can therefore ensure that a minimum or maximum spacing of the grip elements is maintained, especially for inexperienced athletes, in order to simplify use and prevent instability of the dumbbell and thus increase safety.

This embodiment is particularly advantageous when the delimitation element can be mounted and dismantled in different positions on the dumbbell bar or can be adjusted to different positions. In this way, the dumbbell bar can be specifically adapted to the needs of the respective athlete and / or the respective exercise. The delimitation element can be implemented, for example, in the form of a bolt which can be inserted into an opening provided for this purpose in the thread of the dumbbell bar.

The invention is explained in more detail below with reference to the figures.

• 1 Ausführungsform einer erfindungsgemäßen Hantelstange in einer ersten Position
• 2 Ausführungsform der erfindungsgemäßen Hantelstange in einer zweiten Position
• 3 zweite Ausführungsform einer erfindungsgemäßen Hantelstange in einer ersten Position

These show in detail:

• 1 Embodiment of a dumbbell bar according to the invention in a first position
• 2 Embodiment of the barbell according to the invention in a second position
• 3 second embodiment of a dumbbell bar according to the invention in a first position

1 shows an embodiment of a dumbbell bar according to the invention 10 with a longitudinal axis X . The barbell has two grip elements 12th , as well as two weight plate rests 13 on, being on the weight plate rests 13 Weights in the form of weight plates (not shown) can be applied and fastened with a fastening element such as a clip. The weight plate rests 13 are located at both ends of the barbell and are rotatory around the longitudinal axis X the barbell 10 stored by means of needle bearings. In other embodiments, of course, other storage options are also conceivable.

The barbell 10 is through a middle M. in two areas of equal length B1 and B2 split so that the barbell 10 symmetrical about the center M. is. The two areas B1 and B2 each have an external thread 11a and 11b on the barbell, the two threads 11a and 11b are opposite to each other and have the same thread pitch. In this embodiment is on the one area B1 a counterclockwise thread 11a and on the area B2 a clockwise thread 11b upset. The threads 11a and 11b each extend from the middle M. out in the direction of the respective weight plate supports 13 and end there.

The two handle elements 12th are essentially designed as a hollow cylinder and enclose the barbell 10 completely, each with a handle element 12th in each of the areas B1 and B2 between middle M. and the corresponding weight plate support 13 is arranged. Between the inside of the handle elements 12th and the threads 11a and 11b balls are arranged, which in the thread profiles of the thread 11a and 11b be guided. Due to the resulting ball bearing of the handle elements 12th , these can be translated along the longitudinal axis X be moved according to the principle of a ball screw.

Due to the identical thread pitch of the two opposing threads 11a and 11b , can be a synchronous movement of the two handle elements 12th be ensured, provided that both handle elements 12th a rotation around the longitudinal axis X is prevented by holding on, for example. The translational movement of the handle elements 12th while preventing rotation of the handle elements 12th moves the barbell 10 even in rotation.

In 1 an embodiment of the dumbbell according to the invention is shown in which the distance between the handle elements 12th is great. 2 however, shows the same embodiment but with a smaller distance between the handle elements 12th .

The functional principle of training with the dumbbell according to the invention is then described in more detail using the example of the “bench press” exercise.

When bench pressing, the athlete lies on his back on a so-called flat bench, with the dumbbell with weights at chest height above him. The handle elements 12th are located in the in 1 position shown, which corresponds to the starting position. Then the athlete pushes the dumbbell up and moves the handle elements 12th at the same time towards the center M. the barbell 10 causing it to contract multiple muscle groups, particularly the arm and chest muscles. By moving the handle elements 12th towards the center M. and thus towards the in 2 shown position of the handle elements 12th , the dumbbell bar is through the ball bearing and the respective thread 11a and 11b set in rotation. The athlete only has to bear the weight of the barbell without the handles and the weight plate supports 13 or even set the weights on it in rotation, as the weight plate supports 13 as described above on the barbell 10 are stored. Due to the favorable area moment of inertia of the barbell for a rotation around the barbell 10 , is the effort required to rotate the barbell and thus to move the handle elements 12th comparatively low.

By moving the dumbbell upwards as well as moving the handle elements 12th towards the middle of the barbell, the contraction in the target muscle (e.g. chest muscles) is triggered to the maximum and the training success is increased. When lowering the dumbbell, the athlete returns the handles to the starting position ( 1 ) and continue repeating the exercise.

3 shows an embodiment of the invention in which a delimiting element 14th is provided. Otherwise, this embodiment corresponds exactly to that in FIG 1 and 2 embodiment shown, which is why only to the feature of the delimiting element 14th will be discussed at this point.

The delimitation element is here 14th designed as a bolt that goes into a designated opening in the barbell 10 can be introduced. The delimitation element protrudes 14th from the barbell 10 so far that the handle element 12th not over the delimitation element 14th can be moved away and thus the translational movement of the handle element 12th limited in one direction.

Due to the use of the barbell according to the invention 10 synchronous movement of the handle elements 12th in the present embodiment of the 3 it is sufficient only on one side, i.e. in one area B1 or B2 the delimitation element 14th to be provided in order to have a limiting effect also for the other handle element 12th to be able to evoke. Further embodiments are also conceivable in which several delimiting elements 14th , for example to limit the movement of the handle elements 12th in the direction of the weight plate supports 13 . Likewise, along the barbell 10 several openings for receiving the limiting element 14th be provided to vary the limits depending on the exercise and physical conditions of the athlete.

List of reference symbols

10

Barbell

11

thread

11a

(counterclockwise) thread

11b

(clockwise) thread

12

Handle elements

13

Weight plate support

14th

Delimiting element

X

Longitudinal axis of the barbell

M.

center

B1

first area

B2

second area

Claims (10)

A dumbbell bar (10), which extends along a longitudinal axis (X) of the dumbbell bar (10), for training different muscle groups of a user two weight plate supports (13), which are located at the opposite ends of the weight bar (10) on the longitudinal axis (X) and are configured to be able to hold weights, in particular in the form of weight plates, at least two grip elements (12), which are located on the longitudinal axis (X) within the two weight plate supports (13) and are configured to serve as handles for the user, wherein the grip elements (12) are arranged movably on the dumbbell bar (10) at least translationally along the longitudinal axis (X) during use of the dumbbell bar. The dumbbell bar (10) according to the preceding claim, wherein the at least two grip elements (12) surround the dumbbell bar (10) as sleeves. The dumbbell bar (10) according to any one of the preceding claims, wherein the dumbbell bar (10) is divided by a center M into two areas (B1, B2) which each extend from the center M of the dumbbell bar (10) in the direction along the longitudinal axis (X ) extend to the corresponding opposite weight plate supports (13), and which each have opposing, in particular mutually symmetrical threads (11) which are configured for the at least translational movement of the grip elements (12) along the longitudinal axis (X) of the dumbbell bar ( 10) to enable. The dumbbell bar (10) according to the preceding claim, wherein the opposing threads (11) are applied as external threads on the dumbbell bar (10). Dumbbell bar (10) according to one of the preceding claims, wherein the two weight plate rests (13) are mounted on the dumbbell bar (10), configured for this purpose a rotational movement of the weight plate rests (13) about the longitudinal axis (X) of the barbell (10) in relation to the barbell (10). Barbell bar (10) according to one of the Claims 1 and 2 , wherein at least one linear guide is provided in the dumbbell bar (10) which is configured to enable the translational movement of the grip elements (12) on the dumbbell bar (10) along its longitudinal axis (X). The dumbbell bar (10) according to any preceding claim, wherein the dumbbell bar (10) consists of at least two parts which are configured to be connected to one another. The dumbbell bar (10) according to any one of the preceding claims, wherein the dumbbell bar (10) has at least one elastic element which is configured to influence the translational movement of the grip elements (12) along the dumbbell bar (10). The dumbbell bar (10) according to any one of the preceding claims, wherein the grip elements (12) have a fixing element which is configured to fix the grip elements (12) at a fixed position on the dumbbell bar (10). The dumbbell bar (10) according to any one of the preceding claims, wherein the dumbbell bar has at least one limiting element (14) which is configured to limit the translational movement of the grip elements (12) along the longitudinal axis (X) of the dumbbell bar (10) and at different positions to be positioned on the barbell (10).

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