RU223723U1 - THE HAND TRAINER - Google Patents

Abstract

The utility model relates to sports equipment and is designed to develop muscle strength and strengthen the ligaments of a person’s hands and forearms. Use: to develop the strength of the muscles of the forearm, palm and strengthen the ligaments of the hands. Technical result: expansion of the functionality of the device due to the use of an elastic element made of elastic silicone in the form of a single ring with an outer diameter from 79 mm to 84 mm. The essence of the utility model: a hand expander contains an elastic element made of elastic silicone in the shape of a ring with different fixed resistance complexity: 10 kg, 15 kg, 20 kg, in one ring. Provides resistance to pressure from human fingers as a result of elastic deformation.

Description

The utility model relates to sports equipment and is designed to develop muscle strength and strengthen the ligaments of a person’s hands and forearms.

Currently, a number of simulators and expanders are known for training the muscles and ligaments of the human hands and forearms.

A manual sports expander [1] is known - an analogue made in the form of a torsion spring, at the ends of which handles are placed for clasping with the fingers.

Despite its simplicity and effectiveness, this device has some disadvantages, in particular, when placed between the bent index finger and thumb, it may slip out due to an unstable position, which requires fixing it with the fingers of the other hand.

A known carpal expander [2] is an analogue made in the form of a ring made of an elastic elastic material such as rubber with an outer diameter of 8-10 cm and a body of a large cross-section element. Due to its simplicity of design and efficiency, this expander has become widespread. The device is placed in the palm, grasped with the fingers and squeezed, while it is elastically deformed and resists pressure, as a result of which the muscles and ligaments of the fingers and hands as a whole receive useful physical activity. The disadvantages of this device include the limited functionality of it, in particular, weak, relative to others, training of the muscles and ligaments of the thumb when performing this exercise.

As a prototype, a hand expander [3] was chosen in the form of two elastic elements in the form of rings, connected to each other by a jumper in the form of a tape threaded through the rings and intended primarily for training the muscles and ligaments of the thumb. The device is placed in the palm of the hand, with one of the rings under the thumb supported by the bent index finger.

By bending and unbending the thumb, the user squeezes and releases the elastic element, while receiving useful physical activity. The second ring is held with the remaining fingers. Since the maximum outer dimensions of the rings are limited by the patent formula to 6 cm, all fingers except the thumb cannot receive full load with the required range of motion, because This ring size is insufficient for the hand of an adult, which is a disadvantage of the device.

Also, the rings are interconnected with the possibility of changing their position relative to each other, which will be a distracting factor when performing the exercise. Manufacturing a jumper requires additional technological operations.

The technical result achieved by implementing the claimed device is the expansion of its functionality due to the use of a three-sided fixed load in it. The developed form has different widths, thicknesses, diameters in its axis: diameter from 79 mm to 84, thickness from 21 mm to 22 mm and coating shapes: smooth, brushes, pimples. The claimed device can replace three expanders with different resistances.

The claimed device is illustrated by a description and a drawing.

In fig. Figure 1 shows a diagram of a device that has the following functional elements: a large ring.

The operation of the claimed device is as follows.

The expander fits into the user's palm. Large ring 1 is placed at an angle with the required load at the user's choice and is grasped by all fingers of the hand at the same time. By squeezing ring 1, the user receives useful physical activity on all fingers of the hand at the same time, as well as on the forearm and wrist joint.

The ability to select any type of load: 10 kg, 15 kg, 20 kg distinguishes the claimed device from known analogues and allows for the achievement of a technical result with a positive effect, and also consists of a single ring, unlike the prototype.

Analogs

1) RU 195322 U1 2020.01.23 Filatov Nikolay Vasilievich (RU) FIST EXPANDER.

2) RU 2484872 C1 2013.06.20 Potapov Nikolay Antonovich (RU) FIST EXPANDER MASSAGER AVAN No. 20-44.

3) RU 2001651 C1 1993.10.30 Vokhmyanin Vladislav Grigorievich Vokhmyanin’s wrist expander.

Claims (1)

A hand expander in the form of an elastic ring made of elastic silicone, made with a width of 79 mm to 84 mm and a thickness of 21 mm to 22 mm on opposite sides, and the opposite sides of the ring are designed to resist loads of 10 kg, 15 kg and 20 kg and are equipped with a smooth coating, a coating in the form of pimples and a coating in the form of brushes.