RU1829945C - Training apparatus - Google Patents

Abstract

The simulator contains: a base on which the power hydraulic cylinder is pivotally mounted to create a load, a stand and a platform for accommodating the athlete. A cable block system, a pivoting curved arm and a foot support member are mounted on a rack. The cylinder rod is connected by means of a slider with a lever with the possibility of moving it along the length and fixing. The lever end section pivotally interacts with the rollers of the unit system. One end section of the cable of the cable block system is fixed on the rack and the other on the platform. 1 C.p. f-ls, 2 ill.

Description

The invention relates to sports, in particular the design of a simulator, for example with a pneumatic force element in the form of a pneumatic cylinder.

Figure 1 shows a General view of the device; figure 2 is a section aa in figure 1.

The simulator contains a base 1, a trolley chair 2, a vertical frame 3, a pivotally mounted power cylinder 4 with a piston 5 and a rod 6, a rotary curved lever 7 and a cable block system with a cable 8, a movable unit 9, pivotally mounted at the end of the lever 7, and a deviation blocks 10 mounted on the frame and base.

The master cylinder 4 includes a housing 11 with a blind bottom 12 and a removable cover 13 with a breathing hole 14 and a guide sleeve 15 for the rod, which serves as a stop for the piston 5. The piston is equipped with sealing collars 6 and oil 17 is filled on top of it in the cylinder cavity

to ensure that the piston is sealed and lubricated, and the bottom of the cylinder is provided with a plug 18 for controlling oil leaks through the seal and for draining. The length of the stop sleeve 15 is chosen so that when the piston moves upward, oil compression does not occur.

Cylinder 4 is pivotally (pos. 19) attached to the base 1, and on the other hand, its rod is pivotally (pos. 20) attached to the sprocket 21, which moves reciprocally along the lever 7. Moreover, the spider is equipped with a latch 22 with a spring 23, and in the lever there are made holes 24 for the lock, corresponding to certain loads, which is then regulated stepwise. The latch 22 can be mounted on the end face of the crawler as shown by the dotted line in Fig. 2, while teeth are formed on the lever to more smoothly control the load. Moreover, the lever 7 is pivotally (pos. 25) attached to the frame 3.

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The frame 3 is equipped with a foot plate 26, which the user abuts against while working on the simulator.

If necessary, for example, to accelerate the return of the piston, an additional load 27 is fixed on the rod.

The radius of curvature of the lever 7 is determined by the dimensions of the cylinder and the rod in the fully compressed position of the piston when the piston touches the bottom, and the radius of curvature of the lever and its length are selected when designing the simulator from the condition of minimal distortion of the specified load value. In the same way, the position of the head unit on the traverse of the frame 3 and the length of the cable, so /. E, are determined from the condition of minimal distortion and load on the cable.

The device operates as follows.

The user adjusts the simulator to the required load, for example, to the maximum, when the crawler 21 is biased towards the fastening of the movable block 9, sits on the trolley 2 and rests its feet on the plate 26. As the legs straighten, the user is wrung out from the frame 3 and the trolley moves to the right. The movement of the carriage through the cable system is transmitted to the end of the lever 7, which rotates around the hinge 25 clockwise. In this case, the rod 6 with the piston 5 rises in the cylinder body and a vacuum is created under the piston, and a force is applied to the rod, determined by atmospheric pressure and the area of the piston. Moreover, regardless of the size of the piston stroke, this force remains constant. In fact, with the same force, the piston moves in the opposite direction.

If it is necessary to reduce the load on the user, the creep 21 is shifted to the right, and the effort on the cable will be determined by the ratio of the shoulders of the lever of the second kind, which is used as lever 7. Moreover, the force on the rod remains constant, and the stroke of the end of the lever and the position of its upper point , and therefore the trolley travel remains unchanged, which is achieved due to the curvature of the lever. The user changes the load very quickly, for which it is enough to turn the cylinder relative to the lever and fix the crawler in a new position. Moreover, the user can make such a permutation of the crawler without leaving the cart.

This simulator can be used not only for leg exercises, but also for arms or other muscle groups,

for example, instead of a trolley, hand grips are attached to the end of the cable.

The power mechanism of the simulator with a vacuum cylinder and a curved lever can be used as adjustable

power element in different types of simulators.

Claims (2)

1. A simulator comprising a base with a power cylinder mounted on it with a rod for creating a load, a support element for the legs and a platform for accommodating the athlete, characterized in that it contains a rack mounted on the base mounted on it a cable-block system and a rotary curved lever, while the foot support element is mounted on a rack, and the power cylinder is pivotally mounted on the base, the cylinder rod being connected by means of a slide with a curved lever with the possibility of shifting along its length and fixing, and the lever with the end section is pivotally interacts with the roller of the cable block system, one end of which the cable section of which is fixed on the rack, and the other on the platform. 2. The simulator according to claim 1, characterized in that the radius of curvature of the curved arm is equal to the length of the cylinder with a rod in extreme compressed position of the piston. Aa Figl