SI23139A - Multifunctional dynamometer for muscle struggling measurement - Google Patents

Abstract

Multifunctional dynamometer for muscle struggling measurement of different parts of the human body solves the technical problem by using adaptable mechanical frame together with computer aided torque sensors for different types of moving. The invented dynamometer comprises front frame 81), middle frame (2) and back frame (3) equipped with a table (6) and a seat (5) with a rest (7). At the front of the invention there are two fixing supports (13) which with an axle screw hold main rod (16) and rotatable disk with conical recesses (14) in their places. Main rod (16) is fixed on the mentioned disk (14) with a fix-release mechanism (15). On the left side there is a cable with a metal handle (2) connected with a tensile force sensor (25). On the right side there are two knee supports (27) and two foot supports (29) connected with a torque sensor (30). On the front upper part of the dynamometer there are two hand supports (11) connected with a torque sensor (12). From all torque sensors (12, 20,30) and from tensile force sensor (25) exists an USB cable connection to the computer.

Description

A MULTIPURPOSE DYNAMOMETER FOR MEASURING POWER

MUSCULAR EXERCISES

The subject of the invention is a multifunctional dynamometer for measuring the strength of muscular stresses, which allows rapid, simple and accurate analysis of the function of different joints.

A technical problem is the manufacture of such a measuring device, which combines a flexible mechanical frame and computer-aided sensory elements for measuring torque or force while performing movement with different body segments.

The invention makes it easy to measure the various parameters of salience that are important in medical and sports diagnostics for analyzing the functional status of the joint-neuromuscular system of the joints.

Innovation is a so-called multi-purpose dynamometer for measuring muscle strength (VD) strength. It is a biomechanical measuring device that is useful for accurate and reliable evaluation of the functionality of the joints of either healthy people or patients in the medical and kinesiology fields. VD allows kinesiologists and medical professionals to measure and evaluate various deficits (injury, surgery, neurological disease, aging, etc.) or the effects of exercise (physiotherapy, sports, research, sports diagnostics, injury prevention, etc.).

In sports and clinical practice, some methods are already used to modify the force of various movements, but their use is limited, because they are often extremely complex, non-portable and expensive systems. In practice, many tests are used to measure the force while performing various movements, which are divided into static and dynamic. The static power meters developed so far, by their function, are often impractical or too expensive and so inaccessible to many who would urgently need them. Isokinetic devices (Biodex System 4, Con-trex MJ), which, in addition to all the additional features that allow for the measurement of force, are very expensive and therefore more difficult to access. Our innovation has a reduced set of parameters in terms of functionality and simplified mechanical and algorithmic functions of the system. This is also an added value of our innovation compared to the systems mentioned earlier. Reduced measured parameters and a simple mechanical framework make our innovation cheaper and more easily accessible to users.

The invention for which the patent is sought is a multifunctional dynamometer for the measurement of the muscular strength of a computer-assisted strain. A key part of the device is the torque and tensile force sensors mounted in the frame, which enables very precise measurement of torque and force in different joints. Throughout the measurement, signals are transmitted to a PC through which the signals are captured, stored and subsequently processed.

The described innovation is therefore a measuring device that combines a flexible mechanical frame and a computer-assisted sensing element for measuring torque and forces while performing various movements. The invention will be described in the drawings showing:

Figure 1: Multifunctional dynamometer for changing muscle tension (front view)

Figure 2: Multipurpose dynamometer for changing muscle tension (rear view)

The invention consists of three main parts. When viewed from the front, it is divided into front, right, left and back. This view is used throughout the technical description when it comes to pages.

The front frame 1 is made of iron profiles. The front profile is transverse and is half a meter long. Two parallel profiles of seventy centimeters in length are welded to it at right angles. Another vertical profile is welded to the front transverse in the middle, reaching a height of half a meter. The two parallel longitudinal profiles are fastened at the rear with a screw to the center of the center frame 2.

The center frame consists of two parallel transverse profiles of two meters in length. Both transverse profiles are connected on each side by a half meter long profile. To the center of the center frame at the rear 2, a rear frame 3 is attached with a screw, which consists of two parallel longitudinal profiles with a half meter spacing. They are seventy centimeters long and have an upright vertical profile that extends half a meter in height.

The upper frame 4 is welded to the top of the vertical profiles of the rear frame and the top of the vertical profile of the front frame. rear frame profiles 3.

At the rear of the upper frame 4 is a transversely welded rear transverse guide carrier, to which three guides 9 are mounted perpendicularly in the longitudinal direction, which are welded to the front transverse guide carrier at the front. It is mounted on the upper frame 4 at the same length as the beginning of the center frame 2 and is so long that on each side there is an additional ten inches beyond the upper frame 4.

The rails are fitted with a rear bearing that is attached to a rectangular bearing that is half a meter wide and one meter twenty inches long. A pillow is mounted on the frame. All this is made up of the bearing 6. The bearing 6 is anchored in the front by two screws to the seat 5, which consists of a seat frame, ie. sixty centimeters wide and half meter long iron frame, which is fastened in front by two axial screws to the upper frame 4. The cushion is attached to the seat frame by screws. By changing the position of the tray 6 on the rear side along the guides 9, the angle between the seat 5 and the tray 6 is adjustable. The rear part of the tray has a hand screw on the lower side, which is screwed into the center guide via the rear carrier bracket and thus fixed in the selected position.

Two vertical profiles, which are seventy centimeters long, are attached to each end of the front transverse rail carrier by a hand screw. Above, they are connected to each other by a transverse profile and also below, thirty centimeters from the beginning of the vertical beams. Together, they form the backrest frame 8. A backrest 7 is secured to the backrest frame, which is padded. The hand screws are fastened so that they can easily remove the backrest 8 and the parts that are attached thereto.

Three vertical rails 10 are welded between the two transverse profiles of the backrest. 10. Two side-by-side ten-inch profiles, which are connected to the metal plate, flow through the lateral two. A hand screw is attached to the metal plate, which is screwed into the center guide and fixes the position of the metal plate in a vertical position. A circular iron profile is attached to the metal plate, wide enough to look five inches across the backrest frame 8. On each side of this profile, a torque sensor 12 is attached, which is screwed to the other side by a screw. stronghold 11.

The armrest is 7 on each side and is made of round iron profiles that are shaped in such a way that when viewed from the armrest forward, they look forward for the first thirty inches, then ten inches inwards and another twenty inches and end with ten inches. up. The torque sensor 12 is positioned to measure torque when the load on the arm support 11 is directed inwards.

On the upper part of the vertical profile of the front of the frame 1, fixing supports 13 are fixed on each side of the vertical profile. The fixing supports 13 are L-shaped metal plates ten to fourteen millimeters thick. The shorter part of the fixing supports 13 is fixed to the frame and the longer part is directed upwards. Just below the top of the fixing supports 13 are two holes through which an axial screw is mounted. The axial screw is positioned in such a position that the average adult has, when seated in seat 5 in the same line, the axis of the knee. A rotating disc with tapered recesses 14 is mounted on the same axis.

The rotating disc with tapered recesses 14 is a circular metal disc three inches thick and ten inches in diameter. The edges have conical shaped recesses three inches deep. In the center is a hole through which an axial screw passes. A rotating disc with tapered recesses 14 is mounted between the two fixing supports 13. On the underside of a rotating disc with tapered recesses 14, a sensor disc mount bracket is welded. The sensor roller bracket is rectangular in shape, eight centimeters long, four centimeters wide, with a torque sensor 20 attached to it. six inches and three inches wide. On the underside, the fixed sensor mount is welded to the vertical profile of the front frame 1. The torque sensor 20 is positioned to detect the loads of the rotating disc with conical recesses 6 as it rotates or tends to rotate but the sensor torque 20 does not allow this.

A main lever 16 is mounted between the pivoting disc with tapered recesses 14 and the fixing supports 13. The main lever 16 is basically a square profile that is one meter long, but initially has such a fork (i.e., an extension of ten millimeters thick metal). so that it can be positioned between the fixing supports 13 and around the rotating disc with tapered recesses 14. Thus, the forks of the main lever 16 also have holes through which the axial screw passes and allows the main lever 16 to rotate about an axis with an axial screw. At the passage where the main lever 16 passes from the square profile to the fork, a fastening-release mechanism 15 is welded.

The fastening mechanism 15 has a lever that pushes a conical pin through one of the eccentrically acting mechanisms into one of the conical recesses on the rotating disc with conical recesses 14. This allows any angle of the main lever 16 to be adjusted.

The adjustable part of the lever 17, which slides along the main lever 16, is attached to the main lever 16. The adjustable part of the lever 17 is a square shaped metal profile such that it glides even more smoothly on the profile of the main lever 16. A hand bolt 21 is mounted on the adjustable part of the lever 17. , which in the selected position is screwed onto the main lever 16 and the adjustable part of the lever 17 is fixed there. A safety mechanism is secured at the end of the main lever 16 to prevent the adjustable portion of the lever 17 from sliding down from the main lever 16. The safety mechanism is a round piece of rubber or other solid material with a radius of one to three centimeters and a thickness of one to one centimeter. which is secured to the main lever 16 by a screw.

A transverse support 18 is welded to the adjustable portion of the lever 17, i.e. a circular metal profile half a meter wide and one and a half inches radius. On the transverse support 18, the legs 19 are supported on each side. The legs 19 are semi-circular in shape, eight centimeters long, six centimeters wide, and neoprene coated (may also contain any material such as foam, pillow, etc.). The semi-circularly shaped leg supports 19 are oriented in such a way that they fit into the shins of the measuring leg. The leg supports 19 rotate about the transverse support 18 and have hand screws on the upper side that allow them to be fixed to the selected position.

On the center frame there are three guides 22 on the left side which are secured to the profile on the left side, connecting the two long transverse profiles and to the profile welded to the center frame 2 one meter and thirty centimeters from the far left side. To the center of the frame 2 on the left side, there are two stand supports welded to each corner 23. These are two seven-millimeter-thick metal sheets thirty inches long and fifteen inches wide. The support posts 23 are arranged so that the long portions are oriented inwards, ie towards the right side of the center frame 2.

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On the lateral two guides 22, there are two profiles which are of such dimensions that they fit perfectly with the guides and are connected to each other by a metal plate on which there is a hand screw which is screwed into the center guide. All this together forms a traction support 24. An interface is welded to the metal plate on the traction support 24, i.e. an iron cylinder pointing upwards five inches long. A twenty-centimeter braid is attached to it, which is attached to the tensile force sensor 25 on the second part. On the other side of the tensile force sensor 25 there is another ten-centimeter braid, which is then attached to the center of the metal handle 26. The metal handle 26 is a circular metal profile , half a meter in length and two inches in diameter.

On the right side of the center frame 2, two one meter long vertical profiles, which are connected above with the welded metal profile, are placed half a meter from the extreme right point on the transverse profiles of the center frame.

Both vertical profiles have knee supports 27. The knee supports 27 are made of two square metal profiles; one running along a vertical profile and the other perpendicularly welded to the first and pointing inwards, that is, towards each other. Two semi-circular supports are welded to the latter, facing down and positioned longitudinally. They are twelve centimeters long, ten centimeters wide, and on the inside they are padded with neoprene (may also be other soft material like foam, fillet, etc.). The entire knee supports 27 are adjustable in height as they slide along vertical profiles. In the selected position, they are secured by a fastening mechanism 28 mounted on the knee support 27, which runs along a vertical profile. The fastening mechanism 28 has an eccentric handle that acts when the handle is pressed into the lower position, the eccentric part is pressed against the vertical profile and the knee support 27 is locked in the selected position.

The footrests 27 also vertically align the footrests 29, which are located below the center of the frame 2. The footrests 29 are rectangular shaped, made of metal, fifteen centimeters long, seven centimeters wide. At the back, they have a six-inch-high edge on the sides that is

on the outside attached to the side axle and on the inside to the center axis. The foot supports 28 rotate about an axis consisting of a lateral axis and a central axis. The side axle is an axial screw with an interface that connects the foot supports to the vertical profile. The center axle has two axial screws, each on one side of the interface, and connects the two foot supports to each other.

The interface is attached at the front with one profile to the profile connecting the two long transverse profiles of the center frame 2, and at the rear with two profiles that attach to the profile welded to the center frame 2 one meter and thirty centimeters from the far left.

All of the torque sensors 12, 20, 30 and the tensile force sensor 25 have a USB cable connected to the computer.

Claims (4)

A multifunctional dynamometer for measuring the strength of a muscular strain, characterized in that it consists of a front frame (1), a center frame (2), a back frame (3), a seat (5), a bearing (6), a backrest (7), the main levers (16), the guides (9, 10, 9) of the torque sensors (12,20,30) and the tensile force sensors (25). 2. The device specified in claim no. 1, characterized in that the tensile force sensor (25) is movable along its guides (22). The device specified in claim no. 1, characterized in that the backrest (7) is easily detachable. The device specified in claim no. 1, characterized in that the arm supports (11) are connected to the torque sensor (12) and to the guides (10).