(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.
SUBSTANCE: pedals are supplied with devices fastening footwear and are installed on cranks with possibility to automatically change crank length. Pedal frame (1) contains rectangular horizontal plate (2) having on its upper surface devices (5, 6) fastening bicyclist footwear and girdle (3) on one of its longitudinal edges with pedal axle (4) secured on crank. Plate (2) is connected with girdle (3) so that its upper surface is located below pedal axle (4) at distance (a) and axis (7) of footwear support on plate (2) of pedal located in frontal plane crossing bicyclist metatarsus of hallux when bicyclist revolves pedal is placed in front of pedal axle (4) at distance (b) so that axis (7) of footwear support circumscribes circle with centre (O') and radius (r') displaced below at distance (a) and at distance (b) forward in respect of circle with centre (O) circumscribed by pedal axle (4), where (O) is axis of carriage unit with radius (r).
EFFECT: acceleration of dead points passing and increase of torque.
17 cl, 16 dwg
SUBSTANCE: invention relates to bicycles with reciprocating foot levers that make pedals move as in walking or running. Proposed drive comprises swinging supports 16 and levers 7 fitted via ratchets 6 on crosswise drive shaft 3, gear with drive sprocket coupled via chain with driven sprocket fitted on drive wheel axle. Swinging levers 7 incorporates top and bottom hinges 15, 24. Bottom hinges 15 allow bicyclist to bend and straighten knees in pedaling supports 16. Top hinges 24 reduce air drag by allowing crosswise drive shaft 3 to go down, as well as transparent cabin 1 that features minimum air drag.
EFFECT: reduced air drag, higher comfort.
SUBSTANCE: invention relates to bicycles with pedal drive crank mechanisms that comprises levers of self-adjusting length that run along elliptic trajectory or other noncircular rotational trajectory. Pedal drive with chain or belt transmission comprises pinion frame 1 with its first end coupled with shaft of carriage 2, lever 3 with pedal 4 rigidly fixed with sun gear 5, stationary gear 6 with gear ratio of 2:1 with respect to sun gear 5. Stationary gear 6 is fixed relative to bicycle and coupled with sun gear 5 by chain or belt transmission. Second end of pinion frame 2 is articulated with sun gear 5 at the point shifted from its center while stationary wheel 6 features shape other than circle.
EFFECT: reduced drive forces due to mismatch between passing top dead center and bottom dead center of pedals.
4 cl, 4 dwg
SUBSTANCE: invention relates to bicycle with pedal drive incorporating reciprocating levers. On drive wheel axle (22), outer part of telescopic lever is installed. Gear (23) is installed on outer part of telescopic lever. Arc-shaped pinion rack (24) is mounted on bicycle frame. Gear (25) is linked with one-way rotation clutch (27). Gear (23) is engaged with arc-shaped pinion rack (24) and with gear (25).
EFFECT: elimination of chain gear.
2 cl, 6 dwg
SUBSTANCE: invention relates to foot crank mechanisms. Cranks 6 are keyed to shaft 16. One spacer ring is fitted on shaft 16 while another one is fitted in bicycle frame carriage assembly. Inner ends of cranks 6 thrust against each other via inner races of carriage assembly bearings and via spacer ring on shaft 16. Outer races of bicycle frame carriage assembly bearings thrust against each other via spacer ring fitted in bicycle frame carriage assembly. Con rod angular displacement relative to crank within the limits of 45 degrees in vertical position of cranks is limited by inner surfaces of con rod via shockproof spacers.
EFFECT: accurate positioning, reliable operation.
6 cl, 13 dwg
SUBSTANCE: invention relates to device to drive transport facilities by human muscles. Proposed drive has two stages, one being composed of two planetary mechanisms with carries 2, 3 rigidly coupled with carriage shaft 1 and composed of a plate integrated with carriage shaft 1 to double as a flywheel with plane pinions 4, 5 fitted on extending ends and engaged with sun gears 7, 8 at gear ratio of unity. Said sun gears are fitted concentrically with carriage shaft on both sides and fixed to vehicle body 9. Pedals 10, 11 are fitted on radial permanently horizontal levers 12, 13 directed forward. Axial ends of horizontal levers 12, 13 are rigidly connected with plane pinions 4, 5. Second stage is composed of gearing with gear 16 fixed at carrier rim 2 while gear 17 is fitted on drive axle 18 of one of vehicle actuators.
EFFECT: higher traction and efficiency.
SUBSTANCE: invention relates to bicycle pedal crank gear. Proposed crank gear consists of pedals fitted on pins and connected with free ends of con-rods opposed on carriage shaft that have parts extending axially. Said parts fixed with carriage shaft have ledges arranged at surfaces opposite their pedals. Pedal pins in free ends of extending parts can revolve along with fixed pedals and terminate at opposite sides of con-rods with single-arm levers. Single-arm levers are located parallel by pedal bearing surface in direction to their heel area. Free end of single-arm levers have ledges. Said ledges are coupled via bars with ledges of con-rod parts fixed with carriage shaft.
EFFECT: better controllability.
1 tbl, 4 dwg