RU2801935C1 - Cycle-fin - Google Patents

Abstract

FIELD: sports equipment.

SUBSTANCE: cycle-fin includes a support tube, on one side into which a handle is installed with the possibility of adjusting its length. On the other hand, a fork-bracket is attached to the support pipe, including at its end a lever pivotally fixed on the axis, containing two lugs pivotally interacting with the connecting rod of the drive mechanism, as well as an attachment unit to which the fin is attached. The drive mechanism is installed in the symmetrical holes of the fork-bracket and includes two cranks fixed in the corresponding bushings on the inside of the fork-bracket, moreover, these cranks have holes for their hinged attachment to the connecting rod, which is configured to transmit translational motion to the lever under the action of the rotation of the cranks and, accordingly, on the fin. In this case, the cranks are driven by pedal connecting rods by means of pedals hinged to them.

EFFECT: increased efficiency of swimming, reduced energy expended on movement of the swimmer, ease of use.

9 cl, 4 dwg

Description

The invention relates to swimming aids as sports equipment for swimmers and rescuers, and as a device for swimming enthusiasts for entertainment and exercise therapy.

The use of fins for swimming, diving, and entertainment is widely known, but their design has not changed for a long time, their efficiency is low, and the amount of energy spent on moving in water is extremely high, and therefore a request has matured in society to refine and improve the design of the device. for swimming with ease of use and increased efficiency in use.

Solution RU 121449 U1 27.10.2012 was chosen as the closest analogue, opening a flipper containing a rowing blade, while the rowing blade is connected or made integral with a cuff equipped with fixation elements to secure the flipper in the area of the swimmer's thighs.

The disadvantage of the known device is its low efficiency, spending more energy to swing flippers, the complexity of the application, requiring the need to master the skill of swimming, the difficulty of selecting the size for yourself.

The objective of the proposed invention is to eliminate these disadvantages.

The technical result is to increase the efficiency of swimming, reduce the energy expended on the movement of the swimmer, ease of use.

This result is ensured by the fact that the bike flipper includes a support tube, on the one hand, into which a handle is installed with the possibility of adjusting its length,

on the other hand, a fork-bracket is attached to the support pipe, including at its end a lever pivotally fixed on the axis, containing two lugs pivotally interacting with the connecting rod of the drive mechanism, as well as an attachment unit to which the fin is attached,

the drive mechanism installed in the symmetrical holes of the fork-bracket includes two cranks fixed in the corresponding bushings on the inside of the fork-bracket, moreover, these cranks have holes for their hinged attachment to the connecting rod, which is configured to transmit translational motion under the action of the rotation of the cranks on the lever and, accordingly, on the fin, and the cranks are set in motion by pedal connecting rods by means of pedals hinged to them.

Adjustment of the length of the handle in the support tube is carried out by aligning the hole on the support tube and a selected one of the plurality of holes on the handle and fixing them with a pin.

The pedals additionally include toe clips for fixing the legs in them.

The handle includes means for attaching it to a person's torso.

The angle of deviation of the fin from the horizontal up and down is 10 - 45 °.

The fin is made of an elastic-elastic material.

The device additionally has means to ensure its buoyancy.

The device additionally includes a stabilizer on the support pipe.

We will consider the detailed design of the device taking into account the attached drawings, where

Fig. 1 - general view of the assembled device;

Fig. 2 - device, divided into separate parts and assemblies;

Fig. 3 - enlarged fragment of the device;

Fig. 4 is an example of the use of the device by a swimmer.

Where, position:

1 - support pipe;

2 - handle;

3 - fork-bracket;

4 - lever;

5 - attachment point;

6 - fin;

7 - eye;

8 - connecting rod;

9 - crank;

10 - pedal crank;

11 - pedal;

12 - stabilizer;

13 - steering plate

The bicycle fin includes a support tube 1, on one side into which a handle 2 is installed with the possibility of adjusting its length. The support pipe 1 is the basis for fixing the elements of the device. The support tube 1 is made of metal, such as aluminum or strong plastic resistant to bending loads, or other materials that provide sufficient bending strength and preferably low weight. The length of the support pipe 1 depends on the height of the swimmer, while the length is partially regulated by means of the handle 2 with the adjustment of its installation length in the support pipe 1. The handle 2 is also made in the form of a pipe with protruding at its end, perpendicular to the pipe, grippers, ensuring the grip of the handle 2 by hands and/or resting it on the body of the swimmer. The adjustment of the length of the handle 2 in the support tube 1 is preferably accomplished by aligning the hole in the support tube 1 with a selected one of the plurality of holes in the handle 2 and fixing them with a pin or other means of fixation. The handle 2 may include a means of attaching it to the body of a person, for example, a belt, an elastic band and other devices that allow the handle 2 to be fixed to the body, in order to simplify the use of the device, especially for beginners, or the fixation means may come separately from the device. The device additionally has means in the form of a foamed buoyant material filled in the support tube 1, or floats on the support tube or other means that provide buoyancy to the device to simplify its use. Moreover, preferably, the means for maintaining buoyancy may be able to adjust it, for example, depending on the density of the water. The adjustment is provided, for example, by pumping the floats on the support pipe 1 with air or otherwise. The handle 2 may additionally contain a steering plate 13, and the fork-bracket - a stabilizer 12, made in the form of a fin to stabilize the device in the water column. The stabilizer 12 can be as simple as a vertically oriented fin, or complex enough to stabilize the device in different planes.

On the other hand, a fork-bracket 3 is attached to the support pipe 1, which has a tubular base for attaching it to the support pipe 1 and two plates arranged parallel to each other. Fork-bracket 3, as a rule, is made of metal or other durable material, since it takes on the main load during the operation of the drive mechanism when swimming.

The fork-bracket 3 includes at its end a lever 4 hinged on the axis of rotation and the corresponding bushings. The hinged fastening of the lever 4 can also be made using other nodes that ensure the rotation of the lever around the specified axis to ensure easy rotation at a certain angle of the lever 4 during operation devices.

The lever 4 contains two lugs 7 pivotally interacting with the connecting rod 8 of the drive mechanism, which will be described later in the text. The lever 4 also includes a fastening unit 5, which secures the fin 6. The fastening unit 5 can be made in the form of a slot into which the edge of the fin 6 is inserted and fixed with a bolted connection, however, the fastening unit 5 may have a different design and fastening elements of the fin 6.

The fin 6 is located horizontally relative to the water surface and closely resembles the horizontal fin of a fish (similar to the fin of a sea whale), but the shape of the fin may be different. The fin 6 is preferably made of some elastic material, but in certain situations it can also be made of a rigid material, such as aluminum.

The drive mechanism is installed in the symmetrical holes of the fork-bracket 3. The drive mechanism includes two cranks 9, which are installed in the corresponding bushings. The cranks 9 are mounted on the inside of the protruding elements of the fork-bracket 3. These cranks 9 have holes at their end for their hinged attachment to the connecting rod 8. The hinged fastening of the connecting rod 8 can be structurally different, however, in any case, ensure the rotation of the cranks 9 around the axis and transmission the corresponding movement to the connecting rod 8. The connecting rod 8 transmits translational motion to the lever 4 and, accordingly, to the fin 6, which ensures the creation of movements for the rowing force. The angle of deviation of the fin 6 from the horizontal up and down is 10 - 45°, while a larger angle complicates the actuation of the drive mechanism, and a smaller angle does not provide proper repulsion of the fin 6 from the water.

Cranks 9 are set in motion by pedal cranks 10 (the established technical name of this unit), rotating around its axis. Pedal cranks 10 are actuated for their rotation by means of pedals 11 hinged on them. The design of pedals 11 may be different, however, preferably, pedals 11 should contain toe clips to fix the legs in them and securely hold the entire device under the control of a person, especially a beginner or other clamps.

The device works as follows.

The user adjusts the length of the handle 2 of the bike fin to suit his height and body structure, puts the device on the water and lies down on it himself. If necessary, it fixes the device by means of fixing the handle 2 to the human body and/or fixes the feet in the pedals 11 by means of tuklips or other devices. The user can also hold on to the handle 2 with one or both hands, or not hold on to it (if it is secured by means of fixation to the person's torso).

The device is ready to work.

Further, the user rotates the pedals 11 and transfers the rotation through the drive mechanism (through the pedal cranks 10, cranks 9 to the crank 8) and then to the hinged lever 4, which makes movements around the axis of the hinged mount and transfers them to the fin 6. The fin 6 performs oscillatory movement, pushing off the water. The control of the direction of the swim is carried out by the deflection of the body and by turning the arms.

The user moves (swims) together with the bike fin.

Example 1

The bicycle fin includes a support tube 1, on one side into which a handle 2 is installed with the possibility of adjusting its length,

- the handle 2 includes a means of its attachment to the human body, in the form of a belt,

- on the other side, a fork-bracket 3 is attached to the support pipe 1,

- fork-bracket 3 includes at its end a lever 4 hinged on the axis, containing two lugs 7, as well as a fastening unit 5, to which an aluminum fin 6 is attached,

- the angle of deviation of the fin 6 from the horizontal up and down is 45°,

- the drive mechanism is installed in the symmetrical holes of the fork-bracket 3. The drive mechanism includes two cranks 9 fixed in the corresponding bushings on the inside of the fork-bracket 3. The cranks 9 have holes for their hinged attachment to the connecting rod 8.

The cranks 9 are driven by the pedal rods 10, by means of the pedals 11 hinged to them.

Example 2

The bicycle fin includes a support tube 1, on one side into which a handle 2 is installed with the possibility of adjusting its length,

- adjusting the length of the handle 2 in the support tube 1 is carried out by aligning the hole on the support tube 1 and the selected one of the many holes on the handle 2 and fixing them with a pin,

- support pipe 1 additionally includes a stabilizer 12,

- on the other side, a fork-bracket 3 is attached to the support pipe 1,

- fork-bracket 3 includes at its end a lever 4 hinged on the axis, containing two lugs 7, as well as a fastening unit 5, to which an elastic-elastic fin 6 is attached,

- the angle of deviation of the fin from the horizontal up and down is 15°,

- the drive mechanism is installed in the symmetrical holes of the fork-bracket 3. The drive mechanism includes two cranks 9 fixed in the corresponding bushings on the inside of the fork-bracket 3. The cranks 9 have holes for their hinged attachment to the connecting rod 8. The cranks 9 are driven by pedal cranks 10 by means of pedals 11 hinged on them.

- pedals 11 additionally include tuklips for fixing the legs in them.

The device additionally has means in the form of a foamed floating material filled in the support tube 1, which ensures its buoyancy.

The proposed solution provides an increase in the efficiency of swimming, a reduction in the energy expended on moving the swimmer, and ease of use.

Claims (11)

1. A bicycle fin, characterized by the fact that it includes a support tube, on one side into which a handle is installed with the possibility of adjusting its length, on the other hand, a fork-bracket is attached to the support pipe, including at its end a lever pivotally fixed on the axis, containing two lugs pivotally interacting with the connecting rod of the drive mechanism, as well as an attachment unit to which the fin is attached, the drive mechanism installed in the symmetrical holes of the fork-bracket includes two cranks fixed in the corresponding bushings on the inside of the fork-bracket, moreover, these cranks have holes for their hinged attachment to the connecting rod, which is made with the possibility, under the action of the rotation of the cranks, to transmit translational movement on the lever and, accordingly, on the fin, and the cranks are set in motion by pedal connecting rods by means of pedals hinged to them. 2. The cycling fin according to claim 1, characterized in that the adjustment of the length of the handle in the support tube is carried out by aligning the hole on the support tube and the selected one of the many holes on the handle and fixing them with a pin. 3. A cyclist according to claim 1, characterized in that the pedals additionally include toe clips for fixing the legs in them. 4. Bicycle fin according to claim 1, characterized in that the handle includes a means of fastening it around the human torso. 5. Velolasta under item 1, characterized in that the angle of deviation of the fin from the horizontal up and down is 10-45°. 6. Cycle fin according to claim 1, characterized in that the fin is made of an elastic-elastic material. 7. A cyclist according to claim 1, characterized in that it additionally has means to ensure its buoyancy. 8. A cyclist according to claim 1, characterized in that it additionally includes a stabilizer on the fork-bracket. 9. Cycle fin according to claim 1, characterized in that it additionally includes a steering plate on the handle.

Images