UA148386U - EXPANDER - Google Patents

Abstract

The expander contains two handles, in the upper part of which a spring is fixed. A second spring mounted on the handles parallel to the first spring is introduced, and both springs are fixed.

Description

The useful model belongs to sports and training equipment and can be used to develop strength and endurance of muscles during physical exercises at home, and can also serve as a multifunctional simulator.

Sports devices for training the forearm are widespread nowadays. There are a large number of completely different structures, each of which has one goal - to increase grip strength.

The Eogeagt ehegsizeg exerciser is known, which is worn on the arm, and overcoming the force of the spring, you need to bend the hand or unbend it, depending on the exercise. The exercise machine is a kind of analogue of the exercise "bending the hands with dumbbells", for pumping the muscles of the flexors and extensors of the wrist, radial and brachioradial muscles of the forearm (pErz://Ly-raga.sot.alLtepagpegu-ia-rguzigoui-dIua -tepimappua-regedriispepua/).

The disadvantage of such a simulator is that the resistance of the spring is not adjustable, so the effectiveness of the simulator is rather small.

An expander is known, containing an elastic element, at the ends of which two metal carabiners are fixed, to which handles are attached with the help of metal rings, where the elastic element, made of an elastic cord, additionally contains a third metal carabiner, which is attached to the elastic element in such a way as to separate elastic element in half (patent of Ukraine for a utility model Mo 82370, m. cl. AEZV 21/00, publ. 07/25/2013.

The disadvantage of the known expander is a single elastic element, which, with uneven loading on different ends of the elastic element, can shift to one side, reducing the load on one of the limbs, and provide different amplitudes of movement of the limbs.

A universal expander is known, which contains a spring, as well as hollow cylindrical handles located and connected to its ends, and each handle of the expander is additionally equipped with its own, connecting it to the end of the spring, a threaded pair of a bolt with a ring rigidly connected to its head, and nuts and is U-shaped in longitudinal section with a central hole for the bolt rod in its closed end and with the possibility of free entry of the spring into its open cavity and movement in it, while the end of the spring is fixed in the bolt ring, and the rod this bolt passes through a hole in the closed end of the handle and is fixed on its outer side by a nut (Russian patent for a utility model Mo 156811, m. cl. AEZV 23/16, publ.

Co., Ltd.) 20.11.2015, Bull. Mo 321.

The disadvantage of such a universal expander is its limited functionality.

The closest to the claimed device is a brush expander, which contains a body in the form of a hinged rectangular frame, where two opposite sides serve as handles, which are covered with a soft shell, and a spring is located on one side of the rectangular frame, and has a length of 2/3 of it values (Russian patent for a utility model Mo 2536197, m. cl. Ab6Z3B 23/16, publ. 12.20.2014, Bull. Mo 351.

The disadvantage of such a brush expander is limited functionality.

The basis of a useful model is the task of creating an expander, the design of which, due to the introduction of new elements and their location, allows expanding its functionality. The use of the proposed expander will contribute to increasing the variability of loading efforts, the development of strength and motor capabilities. Its use provides the necessary change in the locally directed vector of force application to certain muscle groups, which creates conditions for a greater variability of muscle synergies that are formed during physical exercises.

The task is achieved by inserting a second spring fixed on the handles parallel to the first spring into the expander, which contains two handles, in the upper part of which a spring is fixed, and both springs are fixed immovably.

The expander is explained by the drawing, in which 1, 2 are handles, 3, 4 are springs, and springs C and 4 are located parallel and fixed immovably with handles 1 and 2, forming a rectangle.

The device is used as follows. They take handles 1, 2 with both hands and during the class perform either bending - extending the hand or turning the hand left - right relative to each other, while the first hand rotates forward, and the second rotates back, then everything is the other way around - the first rotates back, the second - forward. The exercise cycle continues. With a greater angle of rotation of the handles 1, 2 relative to each other due to the tension of the springs 3, 4, the load on the muscles of the hands increases. In addition, the handles 1, 2 can be tilted towards each other or, conversely, move them to different opposite sides. This training process covers almost all the muscles of the fingers and the entire forearm.

The use of the proposed expander allows you to more effectively develop strength and motor endurance, makes training more effective. The created expander is portable,

easy to use, technologically made, effective for training both hands due to simultaneous, mutual movement and movement of hands and shoulders.

Claims (1)

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