SU1395343A1 - Arrangement for training swimmers - Google Patents

Abstract

The invention makes it possible to increase the efficiency of training by ensuring the development of coordination of movements of a real swimming. The device comprises a frame 1 with a platform of two parts 5 and 6 for accommodating a swimmer. The frame is mounted on wheels. Front wheel 3 is self-aligning. The rear wheels 2 are kinematically connected to the handles 10 and the foot grippers 37. The latter are spring loaded on the telescopic arms 35. The levers are connected through a gear train to a ratchet mechanism mounted on the axis of the rear wheels. Two cams are mounted on this axis. The levers are in contact with these cams. The handles 10 are movably mounted on elliptical guides 8 and spring-loaded to the sleeves 13. The sleeves are connected to the rack rail 18. The latter is spring-loaded to the frame 1 and interacts with the ratchet sprocket. 1 h. P. of f-ly, 12 ill. S (l

Description

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i The invention relates to sports, in particular to equipment that provides training for swimmers who swim in the “crawl on the chest.

The purpose of the invention is to increase the efficiency of training by working out the coordination of movements of a real swimming.

On the rods 17, pushing springs 24 are fitted, which abut B of the ferrule 16 with the front ends, and the rear ends against the flanges 25 of the rods. In order to move the toothed web, its rear and front parts have protrusions with holes (eyelets) 26, which are tightly fitted on the guide 27 with the possibility of longitudinal movement on this guide, which is fixed in front of the frame 1, and behind - on the flange 25 of the rod.

Both parts of the platform (pelvic and breast 25

FIG. 1 shows the device, a general view; in Fig. - 2 - the same, top view; in fig. 3 — device trolley with guides and pushing spring; on; FIG. 4 - front view trolley; in fig. 5 -: trolley, rear view; in fig. 6 - foot drive bar; in fig. 7 - the right guide with the cuts of its lower branch) is secured on the console 4 with its supports on A, B, C, D, D, E, F; in fig. 8 - plates 28, on which fastened -: movable handle; in fig. 9 is a diagram of the movement of the right movable handle at the intersection points A, B. V, D, E, E and F; FIG. 7, top view; in fig. 10 - supporting platforms on the trolley, its mechanism with a 20 in hole in the handle 10 has a groove 34 for water; in fig. And - sliding arm. | Ka on the rail; cut along line B on 1FIG. 7; in fig. 12 is a diagram of a manual drive transmission mechanism.

The device comprises a carriage having a frame frame 1, rear driving wheels 2, self-aligning front wheels 3 (FIG. 4), a console 4 on which it is fixed-; Lena front 5 (chest) and rear 6 (pelvic) parts of the platform. The console is fitted with elliptical-shaped 7 - -, „foot fixation guides.

right and left, each has a lower grip body in the form of a rod 41 placed in a rod tube with the possibility of limited rotation relative to the longitudinal axis of the rod and moving it along this axis, which is achieved by window 42, 1 of the tube 10, mounted on the lower branches of the rod through which the guides and the spring-loaded front locks the locking screw 43, screwed by the shock-absorbing springs 11. Along the body of the rod.

each lower branch of the 8 zak-front rail of the rod is made in the form

A replenic lead 12 passing through the sections 44, with its opening 45 mounted on the finger of the handle 10 in the hole of the handle 10. on the pin 46 fixed to the crown. The rear end of the spring 11 abuts against 40 matte 47 of the console. On this sector, on the axis 48, a movable hinge coupling 13, a toothed leash 49 is mounted on a movably mounted

spring 50 spring to the gear wheel 51, mounted on the axis of the rear wheels. R house with a gear wheel on this

Loops are depreciation springs 29. On top of the latter are attached “floating support” pads 30. The handles have a body 31, two rings 32 and a gripping bow 33.

The foot drive of the device has two telescopic rods 35, at the back of each of which there is a movable, spring-loaded foot-grip spring 36 consisting of two (front 37 and rear 38) plates articulated with their lugs with axis of grip hinge placed in them. On the back plate 38 of the grip attached belt 40

: the leading 8 branch and the upper 9, contact-guide branch.

On the frame 1 of the trolley, there is mounted a manual drive mechanism containing two hands on this guide (there is a cutout for the leash) and articulated (hinge 13) with a pull 14.

The lower end of the rod is 14 hinged through. The same axis is fixed to a double cam (expander 15 is articulated with the clip 16, nascentric) 52, which rotates together with the pin to the axis 17 fixed on the front part and interacts with the pin 17 of the frame 17 attached to sector 44 there is a toothed rack 18, a gear. On the sector there are teeth-limiting teeth on the gear wheel 19, full stops 54, which hold the rod in the rear working range, which is loosely mounted on the axis 20. For fixing the rod the forest. This axis is placed in the eyes 21, have stiffening ribs 55 located on the horizontal part of the frame

carts.

The rear wheels are fixed on the axle and interact with the gear wheel by means of a ratchet, the wheel of which is 55 and hands take the handle 10 and even the gear wheel 19. The dog pulls the paddle movements so that the picker is fixed movably on the axis 22 on the rear wheel disc with the inner side of the device as follows.

The swimmer lies on the platform, puts the toes of the legs into the belts of the 40 grippers 41,

as required when swimming by crawl on the chest, i.e. alternately, eg 1395343

spring and spring 23 to the gear wheel.

On the rods 17, pushing springs 24 are fitted, which abut B of the ferrule 16 with the front ends, and the rear ends against the flanges 25 of the rods. In order to move the toothed web, its rear and front parts have protrusions with holes (eyelets) 26, which are tightly fitted on the guide 27 with the possibility of longitudinal movement on this guide, which is fixed at the front of the frame 1, and at the rear on the flange 25 of the rod.

Both parts of the platform (pelvic and thoracic) are fixed on the console 4 with their support plates 28, on which a groove 34 for a leash is fastened in the hole of the handle 10.

 on) secured to the console 4 with its support plates 28, on which the notch 34 for the driver is fixed to the hole in the handle 10.

Loops are depreciation springs 29. On top of the latter are attached “floating support” pads 30. The arms have a body 31, two rings 32 and a gripping bow 33.

on) secured to the console 4 with its support plates 28, on which the notch 34 for the driver is fixed to the hole in the handle 10.

foot fixation.

The foot drive of the device has two telescopic rods 35, at the back of each of which there is a movable, spring-loaded foot-grip spring 36 consisting of two (front 37 and rear 38) plates articulated with their lugs with axis of grip hinge placed in them. On the back plate 38 of the grip attached belt 40

The same axis is fixed to a double cam (eccentric) 52, which rotates with the axis and interacts with the finger-shaped lever 53 fixed on sector 44 of the rod. There are limit stops 54 on the sector that hold the bar in the working range. To fix the bar have stiffening ribs 55

hands are taken by the handle 10 and further performs the rowing movements,

Use the device as follows.

The swimmer lies on the platform, puts the toes of the legs into the belts of the 40 grippers 41,

hands are taken by the handle 10 and further performs the rowing movements,

as required when swimming by means of a crawl on the chest, i.e. alternately, for example, first with the right hand and then with the left. In this case, the handle 10 moves from front to back along the path defined by the lower branch 8 and simultaneously rotates about the axis of this guide. The forward-down-back movement, and then, at the end of the stroke and upward, is set by this branch. The rotation of the handle is set by the driver 12 fixed along this guide and around it (Fig. 7),

Thus, the shape of the movement of the arm, for example, sickle-shaped, is characteristic of the modern style of a crawl on the chest. The movement of the handle 10 is transmitted to the driving wheels 2. At first, with the movement of the handle 10, the damping-transmitting spring 11 is compressed and its force is directed to move backward of the movable sleeve 13, which pulls the force 14 through the hinge 15 It is transferred to the compression of the pushing spring 24. The latter compresses as much as possible with the movement of the handle 10 into the former rear upper position with respect to the guide 8. With the movement back, the coupling 13 simultaneously feeds the gear 18 attached to it, which with its springs with The user of the guideway 27.

The blade rotates the gear wheel 19 counterclockwise, and the ratchet 22 provides its free rotation without transfer of force to the axis 20 of the driving wheels 2, i.e. idle. After the stroke is completed, the swimmer removes the hand from the handle 10 - releases it and it is under the action of the spring, 11, and then the pushing spring 24 returns to its original front upper position.

The potential accumulated during the compression of the pushing spring 24, releasing, feeds the toothed web 18 forward and rotates the toothed wheel 19 clockwise. The ratchet engages this wheel with the drive wheel 2 and its rotation in the direction that moves the cart forward.

The timing advance of the spring 11 compared with the activity of the spring 24 is determined by the different masses that these springs move forward after compression. The spring 11 moves the light handle 10 forward and the spring 24 moves the desired trolley. Such a sequence in the operation of these springs is positive: the ejection of the handle 10 forward after the stroke occurs with less force and it moves forward more slowly, especially in the front part of the guide rail 8.

When the hands work, the swimmer's legs are also involved. As the cart moves forward, its axis 20 rotates clockwise. In this case, the double cams 52 fixed on it also rotate. The levers 53 supported on them start

0 5

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50

five

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then rise (at the approach of the trough of the cam 52), then descend (at the approach of the steepness). Thus, the rods 35 begin oscillating movements: their grippers 41 are then lowered (foot stroke), then raised (foot skid on the next stroke).

These movements occur within the amplitude defined by the solution between the restrictive stops 48 on the bracket 47. The bars of the moving bracket 47. The bars move alternately, as the double cams 52 (for the left and right legs) are offset from each other by 90 °. It is important that the swimmer's stroke force is not wasted. In order to do this, as the shtangi moves downward, the oblique teeth of the leash 49 capture the oblique teeth of the gear wheel 51 and it additionally rotates clockwise, rotating the axis of the driving wheels 2 in the same direction.

When the boom is moving up (skidding), the tooth slips (spring 50 allows the leash 49) and this effort of the swimmer with the foot upward onto the axis 20 and the wheel 2 is not transmitted - the bar moves upwards freely. Similarly, the left half of the device acts when you press the left handle 10.

After the stroke, the swimmer's arm moves forward — to the starting position for the next stroke. This transfer is carried out along the upper branch 9 of the guide, which by contact with the hand gives the correct direction to this movement of the hand. Twisting the swimmer's body in different directions is ensured by the fact that the platform is made of two parts 5 and b, and the pad is fixed on the support plates 28 with the help of shock-absorbing springs 20. The left and half of the device are independent in their work. This is very important because it allows you to work out the "overlay, characteristic of swimming" by the crawl, when the movement with the other hand starts without waiting for the movement to end with one hand. The swimmer as if climbs forward, which is important for practicing a high level of sportsmanship of swimmers.

Claims (2)

1. A device for training swimmers, containing a platform for accommodating a swimmer, mounted on a frame with wheels, the front of which is hingedly connected to the frame, and the rear ones are kinematically connected through fixed axles on their axes, we have telescopic foot levers, and handles, characterized in that, in order to increase the efficiency of training by practicing the coordination of movements of a real swim, fitted with cams mounted on the axis of the rear wheels and closed guides mounted on the frame with sleeves, handles mounted on the yundih freely and spring-loaded to the couplings in the direction of the paddle movement, and the latter are connected through a spring-loaded rail with a ratchet asterisk, telescopic The levers are mounted for contact with the cams, and the front wheel is self-aligning. 2. The device according to claim 1, characterized in that the inner parts of the telescopic arms are equipped with stabilization springs for gripping the legs, and the outer parts carry sectors with their fingers for interacting with the cams and spring loaded gear leads for interacting with the sprocket of the ratchet mechanism. sh 7 eleven 35 0 J8 27 FIG. 3 57 J5 j n tt2 «3 is 5lf. five 7G / 2 / il 6. 5 thirty 2 18 6 5IJ cpue.6  5/47 fi.T Sri.8 SS (rig. 3 JO (flue. 72 J fig.P