(57) Abstract:

The invention relates to machines with the pedal mechanism. The rod containing a rod with two heads, respectively, the main and head pedals located on both of its ends, the rod is made of two spring-loaded parts, interconnected by a hinge for rotation of the head pedals and stopper, made in the form of a rectangular tube with a slot and fixed with screws with rearrangement to adjust the length of the rod on the master cylinder to communicate with the terminal head pedals are designed to limit the turn angle of 55oto extend the use of the rod independently of the application of the pedal drive. 2 Il.

The invention relates to vehicles, in particular for vehicles with pedal mechanism, driven by the muscular force of the person's feet.

When using the known pedal mechanism, the force is transferred legs alternately only in the anterior half of the circle stroke of the pedal in the second half of the circle have idle pedal.

However, the biomechanical characteristics of the movement of the lower extremities and with whom (Aruin A. S., ZatsiorskiÓ C. M. Economic biomechanics. - M.: Mechanical Engineering. 1989. S. 52.)

It is now established that the force of the legs, for example a cyclist, neimenie effectively in the moment when the rods pass through the vertical position of the dead point and is most effective immediately after passing the dead point when the movement of the legs down.

Given this fact, the experts of the American company "Durham basecls" (Los Angeles) installed on the bike elliptical leading asterisk, linking its greater axis with the position of the connecting rod that allows rod to move faster dead point and continue to remain in the "strong" position.

This solution cyclist, less tired. (Machine Design 1974 N 3)

According to the Leningrad newspaper "Smena" from 21.07.87 in the article "How to become Edison" C. 2 the effect of the Bicycle transmission when using an elliptical sprocket is increased by fifteen percent.

Presented by Bulgarian researchers comparative chart clearly recorded in a more gradual change of torque and perceived leg effort when using the elliptical sprocket. (Magazine "modelist-Konstruktor" 1982, N 7-8, S. 47, 48).

About the details. Although the pedal mechanism is used much more widely, for example with a conical gear drive or directly mounted on the propeller (rotor) of a water bike. (Bogdanov, C. C., Popova S. N. The history of ordinary things. - M.: the Press, 1992, S. 140, 141).

See another example, when modern original bike, made in Japan, where the pedal mechanism through the bevel gear rotates the rear wheel. (Newspaper "socialist industry" from 19.11.89 figure called "disbelief").

In the examples of the use of asterisks excluded. Famous rod containing the rod and two heads at both ends: basic and pedal, the rod has a hinge for rotation of the head pedals and the limiter to move. Both heads of the spring-loaded rod. The famous design of the connecting rod does not provide for individual adjustment of the rod length. (FR, 2603862, B 62 M 1/02, 1988).

The purpose of the invention is included, taking into account the biomechanical characteristics of motion and force characteristics of the lower extremities of the person, to expand the use of the rod independently of the application of power pedal drive.

Suscestvennoj part on the angle 55o;

the limiter is made in the form of a rectangular tube with a slot and fixed with screws with rearrangement to adjust the length of the rod.

The technical result from the use of the invention:

provides the ability to adjust the length of the rod with regard to anthropometric dimensions of the user;

to make the rod can in makeshift conditions.

In Fig. 1 shows the connecting rod of Fig. 2 - section a-a of Fig. 1.

The rod contains the main head 1 mounted on the leading axis of a pedal mechanism, and part of the rod on which two screws 2 fixed limiter 3 in the form of a rectangular tube on the axis 4 of the hinge allowing rotation around the common axis 4. This does not exclude the possibility of manufacturing single parts main head 1 together with the limiter 3. On the axis of the hinge 4 rotates the cylinder, the pedal 5, which has a threaded hole for fastening pedals.

The hinged portion of the head of the pedal 5 has a special configuration that restricts the rotation of the head, the pedal angle of approximately 55o, and is held in the slot of the stopper 3. On the lateral parts of both parts of the rod has ears to secure the ends of the springs 6 strain. It does not drop and the use of the pedal mechanism, the force is transferred alternately feet. However, with the passage of the pedal together with the cylinder, the pedal 5 through the vertical axis of the leg loads the pedal, which, having been set free, stretches the spring 6 and increases the length of the rod, allowing the long rod faster to go from a dead stop and continue to remain in a long version of "strong" position. At the bottom of the pedal position decreases the effort of the legs and the tension spring 6 returns the head of the pedal 5 to the initial position. And the foot pedal on a short rod in idle mode. Rearranging the 2 screws, you can adjust the length of the rod with regard to individual anthropometric data of the driver. 2 When braking pedals, such as a Bicycle, a hinge rod slightly increases the deceleration time. But this does not preclude the reliable use of other types of brakes, for example, hand brake, for this type of transport.

The rod containing a rod with two heads - principal and head pedals located on both of its ends, is made of two spring-loaded parts, interconnected by a hinge for rotation of the head pedal, and a stopper, wherein the stopper is made in the form of a rectangular tube with a slot and fastened with screws with the opportunity to cease the military with the ability to limit the turn angle of 55o.


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