RO130902A2 - Dumbbell - hand gripper system - Google Patents

Abstract

The invention relates to a system consisting of a dumbbell with weights and a device for the flexion of the fingers, used for medical recovery and for strength-training exercises. According to the invention, the system consists of a metallic bar (1) provided, at the ends, with some arresters (2) which allow some weight disks (3) to be attached and fixed by means of some nuts (4), in the central part, the bar (1) passing through an elastic ball (5) of the hand gripper type.

Description

DOUBLE-FLEXOR SYSTEM

Hagiu Bogdan Alexandru

The invention relates to a dumbbell-flexor system used for recovery and strength exercises.

In order to grade the effort, dumbbells have been designed with weight disc selection systems [1] or with an auxiliary device for adding additional weights [2]. Also for this purpose, rotating collars have been created with which to modify the weight of the dumbbell [3]. Another way to streamline their dumbbell exercises was to invent an adjustable handle [4]; for the same desideratum it was proposed to associate the gravitational resistance of the dumbbell with vibrations produced by an electric generator, vibrations whose intensity can be modulated by changing the position of the hand holding the dumbbell during the exercises [5]. The gradation of the effort during the exercises with the dumbbell can also be achieved by partially filling its handle with liquid, which can move during the movements and partially fills one or the other end [6]. Elastic resistance is considered less effective in developing strength and muscle mass, so far the only option in which elastic materials have been proposed to be part of a dumbbell has been in the form of pockets to allow the adaptation of additional weights [7], Cu however, the combination of elastic and gravitational resistance has been used successfully for the design of dumbbell-extensor systems [8] and a helcometer bar with extensor system [9]. A similar invention relates to a hook dumbbell, the assembly of which can be attached to a pulley system [10]; in this way exercises can be performed in which the two gravitational forces act simultaneously. However, the combination of gravitational force with the elastic one is not used, and the dumbbell with attached hook cannot be used independently, but requires the association with classic equipment in the gym.

Increasing the strength of the finger flexors can be achieved with an elastic glove, a device designed especially for athletes [11]. A system was also invented that successively requires the flexors of the fingers and the palms, but it uses exclusive gravitational force [12]. Very close to our invention is a device that simultaneously requires the muscles of the hand and forearm, by combining the tightening of an elastic ball with the stretching of elastic bands to which it is attached; it can be used for sports and recreational activities, but also for the recovery of dysfunctions caused by soft tissue injuries, fractures, strokes, spinal cord injuries [13]. Because it uses only differently oriented elastic forces, the device is more suitable for recovery than for the development of muscle strength, an objective that is easier to achieve by using gravitational resistance.

None of the above devices require the flexors of the fingers and palms simultaneously, or the flexors of the fingers and the extensor muscles of the forearm.

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The dumbbell-flexor system trains all the muscles of the hand and forearm, being made up of a dumbbell that has mounted on the handle a palmar flexor (elastic ball) in the case of the device for recovery exercises or a forearm flexor in the case of devices used for strength exercises . This system is simple and easy to make, with low manufacturing costs, and the range of exercises that can be performed with the device is very varied, the flexor can be tightened simultaneously with the lifting of the dumbbell, or the movements with the dumbbell are performed against the flexor.

The following are four embodiments of the invention, in connection with FIG. 1, 2, 3 and 4, which represent:

Fig. 1. Overview of the dumbbell-flexor system with elastic ball.

Fig. 2. Overview of the dumbbell-flexor system with elastic ball and finger extension system.

Fig. 3. Overview of the dumbbell-flexor system with forearm flexor.

Fig. 4. Overview of the dumbbell-flexor system with compression springs.

Example 1

The dumbbell-flexor system with elastic ball, consists of a metal bar (1) that has limiting ends (2) that allow loading with discs of weights (3) fixed with nuts (4). In the central part, the bar passes through an elastic ball (5) of the palmar flexor type.

Example 2

The dumbbell-flexor system with elastic ball and finger extension system, consists of a metal bar (1) with limiting ends (2) that allow loading with discs of weights (3) fixed with nuts (4). In the central part, the bar passes through an elastic ball (5) of the palmar flexor type, which is provided with an elastic device that allows the extension of the fingers (6).

Example 3

The dumbbell-flexor system with forearm flexor consists of a metal bar (1) with limiting ends (2) that allow loading with discs of weights (3) fixed with nuts (4). in the central part of the bar is fixed an angular forearm flexor composed of two handles (5) connected by a spring (6).

Example 4

The dumbbell-flexor system with compression springs consists of a metal bar (1) which has limiting ends (2) that allow loading with discs of weights (3) fixed by means of nuts (4). in the central part of the bar is mounted an assembly consisting of handles (5) secured by compression springs (6) to the dumbbell bar and joined together by an elastic material (7) which serves to prevent injuries. /. i, ^ - 2 0 1 4 - 0 0 5 9 2 - 7 / O <-οβ- 2014

The dumbbell-flexor systems with elastic ball are suitable for the recovery of paresis and atrophies of the hand muscles, the elastic resistance being low and the gravitational resistance can be gradually increased by adding new discs, as the healing process progresses and regains strength and mobility. Tightening the ball and extending the fist to the forearm can be performed simultaneously, or, in another exercise, flexing the fist to the forearm. in the case of the system provided with an elastic finger extension device (Fig. 2), the extension of the fingers and the hand on the forearm can be achieved, provided that a small gravitational resistance is used.

The dumbbell-flexor systems with forearm flexor or compression springs have the advantage of a higher elastic resistance, suitable for strength exercises. Gravitational resistance can also be increased accordingly, and the range of exercises can be diversified, for example by flexing the forearm on the arm with simultaneous actuation of the flexor. They can be used to recover athletes (increase muscle strength to 5+), or even to diversify bodybuilding programs. Own research [14] has shown that the simultaneous stress on the muscles by elastic and gravitational resistance allows a considerable increase in muscle strength, given the use of low weights. This facilitates both the recovery through physical therapy and the increase of muscle mass through strength training, because exercises can be performed whose equivalent to the classic equipment would be impossible to perform due to too much gravitational resistance.

Benefits:

- dumbbell-flexor systems are simple and have low manufacturing costs

- Compared to classic recovery devices, it simultaneously trains the muscles of the hand and forearm

- the combined use of elastic and gravitational resistance creates superior premises both for the recovery of patients with sequelae after trauma or stroke and for the increase of muscle mass and strength in bodybuilding training

Bibliographical references

1. Patent WO 2009070082 A1

2. Patent US4743017 A

3. Patent US7794373 B2

4. US Patent D500820S1

5. Patent US6039679 A

6. Patent US5056778 A

7. Patent US09 / 228,729

8. Hagiu BA. Sandu AV. Sandu I. Dumbbell with multiple uses. OSIM file

A00256 / 10.04.2012 ‘.

9. Hagiu BA. Oprean A. lacob MR. Cojocariu A.'VÎzitiu IC. Helcometer bar with extension system. File OSIM A00579 / 5.08: 2013 ' / A p- w? / - / T v ^A , Jk / cV 2 014 - - 005920 4 -08- 2014

10. Patent US6436016 Β1

11. Patent US7712153 B2

12. Patent CN201505395 U

13. Patent CA2200648 A1

14. Hagiu B.A., lacob R. Exercise with the barbell-extensor concentric device. Sports and Society. Journal of Physical Education, Sports and Related Sciences, 2014, 14 (1): 28-30.

Claims (5)

claims 1. Dumbbell-extensor system characterized by the inclusion of a finger flexor in the handle of a dumbbell. Dumbbell flexor system according to Claim 1, characterized in that the bending device is represented by an elastic ball. Dumbbell-flexor system according to claim 1, characterized in that the bending device is represented by an elastic ball which includes an elastic device for flexing the fingers. Dumbbell flexor system according to Claim 1, characterized in that the bending device is a forearm flexor. Dumbbell-flexor system according to claim 1, characterized in that the bending device is an assembly consisting of handles connected by compression springs to the dumbbell bar and joined together by an elastic material.