RU2753998C1 - Apparatus for adjusting the load in an athletic exercise machine - Google Patents

Abstract

FIELD: athletic equipment.

SUBSTANCE: invention relates to the field of athletic equipment and is intended for adjusting the load in athletic exercise machines during the exercise of the user. The apparatus for adjusting the load comprises a slider configured to move along a rocker arm hingedly attached to the body and to a rod hingedly connected with a lever rigidly connected with the handles of the machine; a seat of the exercise machine, connected with the rocker arm; a handle, and the rocker arm is attached to the body through a hinge located in the central part. The adjustment screw and rod, bushings, a movable element, a load indicator, casings, attachment elements are introduced. The rocker arm is made with a longitudinal groove wherein the introduced adjustment screw and rod, bushings, movable element, load indicator are placed. The adjustment screw retained from longitudinal movement in the bushings is made with a thread corresponding to the thread of the movable element located on the adjustment screw between the bushings rigidly attached on the rocker arm. The adjustment rod is rigidly attached to the slider at one end and to the movable element at the other end. The load indicator is rigidly fixed on the movable element, the casings are attached on the rocker arm, the handle is rigidly attached at the end of the adjustment screw.

EFFECT: technical result is an increase in the efficiency of exercise due to the ensured smooth adjustment of the load.

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Description

The invention relates to the field of sports equipment and is intended to regulate the load in sports simulators in the process of training the user.

The load system of a sports simulator is one of the most important parameters when choosing a simulator.

The principle of operation of all known strength simulators is the effect of weight on muscle groups during exercise (own or additional, which is provided by the apparatus itself).

In cargo block simulators (source: https://vash.market/sport-i-otdyh/trenazhery-i-fitnes/silovye-trenazhery.html), the weights are held by a retainer in the package-stack. During the exercise, they move up and down along the rod or guide cables, maintaining a constant load on the muscles. In weight block simulators, the load is carried out due to the smooth movement of the retainer in the weight blocks. Weight change: movement of the clamp, which grabs a variable number of flat weights. Mounting on additional weight - with holes and a pin.

There is a known device for regulating the load of a sports simulator (RU 109978 U1, published on November 10, 2011), comprising rocker arms forming a system for parallel lifting of the seat, a thrust for transferring force from the rocker arms to the handle, collapsible rotation units that actuate the structure, a damper, while, the rocker arms contain a number of additional holes for connecting the rod. The change in the position of the rod occurs by moving it along the holes and, ultimately, changes the force on the handle. The movement of the thrust along the shoulders of the rocker arms can be carried out discretely - along the holes.

The disadvantage of the analogue is discrete load switching, in which it is necessary to partially disassemble and assemble the hinges.

A known device for regulating the load in a sports simulator (Exercise machine "Upper traction" Romana 207.35.00, passport Romana 207.35.00 PS ), taken as the closest analogue, containing a slider with the ability to move along the rocker, hinged in the center on the body and hinged to the traction , pivotally connected with a lever rigidly fixed to the handles of the simulator; while at the end of the rocker is connected to the seat of the simulator; a handle attached to an adjusting rod, pivotally connected to the slider; a retainer made in the form of a comb with grooves, rigidly fixed to the rocker for engaging the protrusion located on the adjusting rod.

In the prototype, the effort of the user's hands from the handle, rigidly connected by the lever, through the hinged rod and the slider is transmitted to the rocker, hinged in the center with the body. On one side of the rocker arm, the seat is hinged, and on the other side there is a slider sliding along the rocker with a hinged rod. The change in load occurs due to a change in the position of the slider relative to the central hinge of the rocker arm. To move the slider, an adjusting rod with a handle at the end is hinged on it. There is a protrusion on the adjusting rod for engaging it in the groove of the retainer, rigidly fixed at the end of the rocker arm. The slider moves along the rocker arm with a handle and an adjusting rod with a protrusion, the adjusting rod is lifted and disengaged from the groove and repositioned in another groove.

The lock, made in the form of a comb, contains only three slots for engaging the protrusion of the adjusting rod and, therefore, limits the load regulation for the user only within these limits, the training efficiency decreases due to a discrete change in the load.

The technical result is an increase in the efficiency of training due to the provision of smooth regulation of the load.

The technical result is achieved in that the device for regulating the load in a sports simulator, comprising a slider configured to move along the rocker arm, pivotally attached to the body and to the rod, pivotally connected to the lever rigidly connected to the handles of the simulator, the simulator seat connected to the rocker arm; the handle, and the rocker arm is fixed to the body through a hinge located in the central part, a screw and an adjusting rod, bushings, a movable element, a load indicator, casings, fasteners are introduced, while the rocker is made with a longitudinal groove in which the introduced screw and adjusting rod are placed , bushings, moving element, load indicator; the adjusting screw, fixed against longitudinal movement in the bushings, is made with a thread corresponding to the thread of the movable element located on the adjusting screw between the bushings rigidly fixed to the rocker arm, the adjusting rod is rigidly fixed to the slider at one end, and to the movable element at the other end; the load indicator is rigidly fixed on the movable element, the casings are fixed on the rocker arm; the handle is rigidly fixed at the end of the adjusting screw. The adjusting screw is made with a thread, the length of which is equal to the distance between the bushings. The bushings are rigidly fixed to the rocker arm, for example, with rivets. The movable element is made of a non-metallic material in the form of a sleeve with a through threaded hole and with a flange at the end, the section of which corresponds to the section of the rocker arm. The load indicator is made of a flat metal strip with projections at the end. The covers are made of sheet metal and are installed on both sides of the adjusting screw on the rocker. The casings are made with longitudinal slots for the projections of the load indicator, on which the notches are evenly applied.

The essence of the invention is shown in the figures presented.

FIG. 1 shows a general view of a sports trainer, FIG. 2 is a general view of the load control device, FIG. 3 shows an adjusting screw installed in bushings and a movable element, FIG. 4 - rocker; in fig. 5 - section A-A; in fig. 6 - section BB; in fig. 7 shows an adjusting screw installed in bushings and a movable element, FIG. 8 - adjustment rod with a movable element and a load indicator, where the following designations are adopted:

1 - handles of a sports simulator;

2 - lever;

3 - thrust;

4 - slider;

5 - rocker;

6 - the body of the sports simulator;

7 - seat of a sports simulator;

8 - load control device;

9 - handle;

10 - adjusting thrust;

11 - fastening elements for bushings 18 and 19;

12 - casings;

13 - slots in the casings;

14 - notches on the slots;

15 - load indicator;

16 - protrusions of the load indicator;

17, 25 - fastening elements of the adjusting rod to the rocker arm;

18, 19 - bushings;

20 - adjusting screw;

21 - movable element;

22 - means for fastening the rotation handle to the adjusting screw;

23, 24 - elements of fastening the load indicator to the movable element;

26 - longitudinal groove in the rocker arm;

L is the distance between the articulated joints of the rod with the rocker arm and the rocker with the seat.

The load control device contains a slider 4, made with the ability to move along the rocker arm 5, pivotally attached to the body 6 and to the rod 3, pivotally connected to the lever 2, rigidly connected to the handles 1 of the simulator, and the seat of the simulator 7 is connected to the rocker 5; rotation handle 9. Adjusting screw 20 and rod 10, bushings 18, 19, movable element 21, load indicator 15, casings 12, fastening elements 11, 17, 22, 23, 24, 25. Adjusting screw 20 is made to rotate in bushings 18 and 19 and the movable element 21 located between the bushings 18 and 19, rigidly fixed on the rocker 5. The rocker 5 is made with a longitudinal groove 26, into which the adjusting screw 20, the bushings 18 and 19, the movable element 21, the adjusting rod 10, are inserted one end is rigidly fixed by means of fastening 17 and 25 to the slider 4, and from the other - to the movable element 21. The load indicator 15 is rigidly fixed to the movable element 21, the casings 12 are fixed to the rocker 5; The rotation knob 9 is rigidly fixed at the end of the adjusting screw 20. The adjusting screw 20 is stepped at one end with a square cross section for installing the rotation knob 9. Bushings 18 and 19 are fixed to the rocker 5 by means of fastening elements 11 in the form of rivets. The movable element 21 is made of a non-metallic material in the form of a sleeve with a through threaded hole and with a flange at the end, the cross-section of which corresponds to the cross-section of the rocker 5. The load indicator 15 is made of a flat metal strip with projections 16 at the end. The covers 12 are made of metal sheet and are installed on both sides of the adjusting screw 20 on the rocker 5. The covers 12 are made with longitudinal slots 13 with uniformly applied notches 14 for the load indicator 15. The handle 9, designed to rotate the adjusting screw 20, is rigidly fixed at the end of the screw adjusting 20 means of fastening 22.

The assembly of the load control device is as follows. The rocker arm 5 is inserted into the slider 4, the simulator seat is pivotally attached 7. The rocker arm 5 is hingedly fixed to the body 6 through the hinge in the central part of the rocker arm 5. On the opposite side of the rocker arm 5, a sleeve 18 is pressed into its end. Adjusting screw 20 with the movable element 21 screwed onto it , on which the rod 10, the load indicator 16 is fixed, is inserted into the bushings 18. The adjusting rod 10 is inserted into the longitudinal groove 26 of the rocker arm 5 and is attached to the slider 4 using fastening elements 17, 25. The sleeve 19 is rigidly fixed in the rocker 5 using fastening elements 11. Further, on both sides of the rocker arm 5, the casings 12 are fixed in such a way that the projections 16 of the load indicator 15 are placed in the slots 13 and are fixed by the fastening elements 11 on the rocker 5. The handle 9 is installed on the adjusting screw 20 and rigidly fixed by the fastening means 22.

The load control device works as follows. In a sports simulator, the effort of the user's hands from the handles 1, rigidly connected by the lever 2, through the rod 3 and the slider 4 is transmitted to the rocker arm 5, fixed on the body 6 through the hinge located in the central part of the rocker arm 5. At one end of the rocker arm 5, the seat 7 of the sports the exercise machine, and at the other end the load regulation device 8 of the sports exercise machine is rigidly fixed. Rotating the handle 9, the adjusting screw 20 begins to rotate in the bushings 18 and 19 and along the thread of the movable element 21. The movable element 21 located between the bushings 18 and 19, when the adjusting screw 20 rotates, makes a translational movement inside the rocker arm 5, moving the adjusting rod 10 and a load indicator 15, which in turn are rigidly fixed on the movable element 21 by fastening elements in the form of screws 23 and nuts 24. The adjusting rod 20 moves the slider 4 along the rocker arm 5, changing the distance L between the articulated connection of the rod 3 with the slider 4 and the articulated joint of the rocker arm 5 with the body 6, changing the ratio of the arms of the lever circuit, accordingly, the load of the sports simulator changes. When the load indicator 16 moves along the rocker 5, the projections 16 move relative to the notches 14 on the slots in the casings 12. The notches 14 can be applied with numbers for a visual assessment of the user's load. By smoothly changing the load, the training efficiency increases.

Claims (7)

1. A device for regulating the load in a sports simulator containing a slider configured to move along the rocker arm, pivotally attached to the body and to the rod, pivotally connected to the lever rigidly connected to the handles of the simulator, the simulator seat connected to the rocker arm, the handle, and the rocker arm is fixed to the body through a hinge located in the central part, characterized in that a screw and adjusting rod, bushings, a movable element, a load indicator, casings, fastening elements are introduced, while the rocker arm is made with a longitudinal groove in which the introduced screw and adjusting rod are located, bushings, moving element, load indicator; the adjusting screw, fixed against longitudinal movement in the bushings, is made with a thread corresponding to the thread of the movable element located on the adjusting screw between the bushings rigidly fixed to the rocker arm, the adjusting rod is rigidly fixed to the slider at one end, and to the movable element at the other end; the load indicator is rigidly fixed on the movable element, the casings are fixed on the rocker arm; the handle is rigidly fixed at the end of the adjusting screw. 2. A load control device according to claim 1, characterized in that the adjusting screw is made with a thread, the length of which is equal to the distance between the bushings. 3. A load control device according to claim 1, characterized in that the bushings are rigidly fixed to the rocker arm, for example, by means of rivets. 4. The load control device according to claim 1, characterized in that the movable element is made of a non-metallic material in the form of a sleeve with a threaded through hole and with a flange at the end, the section of which corresponds to the section of the rocker arm. 5. The load control device according to claim 1, characterized in that the load indicator is made of a flat metal strip with protrusions at the end. 6. Load control device according to claim 1, characterized in that the casings are made of metal sheet and are installed on both sides of the adjusting screw on the rocker arm. 7. The load control device according to claim 1, characterized in that the casings are made with longitudinal slots for the projections of the load indicator, on which the notches are uniformly applied.

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