Pedal drive

FIELD: muscular drives; roller skates.

SUBSTANCE: invention relates to lever drive of roller skates. Hinge joint 4 of pedal 1 is arranged in middle part of pedal. Pedal 1 is connected with one of flexible member 12 secured by ends on sheaves 13,14 of mechanism with flexible coupling and passed over sheaves 13,14 of said mechanism from two sides. Flexible material tapes of cables are used as flexible members. One of sheaves 14 is connected with drive gear 15 of toothed mechanism.

EFFECT: possibility of use of smaller diameter sheave as compared with diameter of standard toothed gear, increased transmission gear ratio and speed of running.

16 cl, 4 dwg

 

The claimed technical solution relates to mechanisms for actuating the various devices of the muscular force of the person. It is intended to convert the reciprocating rotary movements, such as movements of the feet and legs into rotational motion of the Executive body of the device and can be used mainly in private vehicles type of roller skates and skateboards, as well as in simulators and other devices.

Foot actuator swing pedal for pottery circles, grinding stones, sewing machines, etc. have long been known. Disadvantages of the presence of "dead spots", low efficiency, the necessity of a strictly defined range of motion of the foot. However, in these devices the load and speed of rotation are small, so the mechanisms satisfactorily perform their functions.

It's more complicated with the drive for the above-named individual vehicles, where the pedal can operate a power greater than all of the user, and the rotational speed of the Executive body - the leading roller - should be high. Attempts to provide a mechanical drive roller skates for over 100 years (US 606854, 1898; US 619370, 1899), but the actual structures have not been created.

Foot actuator includes foot pedal and the transmission (transfer). In drive roll is the same skating pedal should serve as a support for feet and can be hinged to the frame with the possibility of turns back and forth in the vertical plane. The rolling is caused by the stepping movements, and through the efforts of legs affixed to the pedal and transmitted by the transmission on the drive rollers. Actuator design must ensure that the natural character and ease of movements, the effective use of muscular effort and the ability to steadily stand on the pedals when coasting and stops. The latter requires at least two points of support pedal, retaining its horizontal or near horizontal position. Note that the above requirements best suit the movement of the feet during normal walking.

In many known designs of the hinge when the pedal is in its toe and the second support in the heel part (CH 99784, SU 1284 573, SU 1750178, DE 4413712, US 5492345, EP 1163938). Such a two-hinged pedals with the front placement of the hinge and the rear placement of the second support fixation pedal position close to the horizontal, which allows them rmly PA. When the stepping movements of the pedal can follow the foot to rotate to a vertical plane forward rise back up. However, the use of this movement to create a driving force is difficult due to the fact that the rotation of the pedal is not due to the pressure of the toe of the foot, and due to the pulling effort of the upper surface of the foot and laud the LCD. Moreover, high ponimanie back pedal leads to a strong bending of the legs. The active phase of the movement corresponds to not push stop when turning forward, as when walking, and tedious "squeezing" pedal down the heel of the bent leg. Moreover, it occurs at the moment when the foot is already ahead of the center of mass of the user. In the horse goes forward, causing an additional strain of the back of the thigh muscles and pelvic muscles.

The first of these drawbacks are partially eliminated by the shift of the axis of the pedal is in the area of the pads of the feet (US 1437314, DE 418603, SU 1768197, EN 2010584, WO 95/08372). However, in this case, the active phase of movement is squeezing the pedal heel feet. In addition, the shortened pedal and the toe of the foot rests on the crossbar of the frame, resulting in the loss of part of the effort. The exception is EN 8263 hard pedal the entire length of the foot.

Almost completely eliminates the above disadvantages when moving the axis of the pedal is to the middle of the foot and the absence of the second support (EN 2067481, WO 92/06753, WO 01/87436, WO 02/05910). The possibility of bilateral steps: first, the pressure of the toe of the foot, as in walking, lowering the toe of the pedal down, then advanced - pressure heel. The bending of the legs is minimal. However, this pillar hinge mount pedal does not allow stable to stand on it when its horizontal position. To the ome, when standing on the site of any vibration of the foot leads to the movement of the skate forward, making it unsafe. These drawbacks are not present in DE 4220798, but here the front part of the foot rests not on the pedal and on the frame of the skate, eliminating the main active phase - lowering sock pedal pressure foot. In DE 2726961 provided by the rear bearing in the form of a spring, but it only partially addresses the above mentioned shortcomings.

Two hinged pedal with the rear hinge and the front location of the second support (SU 28428, SU 1248624) deprives the pedal rotate from the reference position forward and requires tedious podimane sock feet up. In the US 3285618, US 4602801, US 5492345 and FR 2585582 toe pedal rises the spring, but in the active phase has to overcome her resistance, and the reference position of the foot is unstable. Known also double-articulating mount pedal (SU 1785718, EN 2108833) and other ways, fundamentally different from the offer (US 4417737, US 4445698, US 4706974, US 5056802, FR 2539312, WO 91/15276, WO 92/22455).

A hinge mounted on the frame, the pedal has a very slow speed, and the frequency of the clicks are limited. At the same time, to achieve high speed with a small diameter rollers requires a high frequency of their rotation. Therefore, the transfer must have a high gear ratio. In addition, in the first link transmission, starting from the pedal, on jstout great efforts even in statics can exceed the weight of the user. When dynamic loads, i.e. on the bumps, jumps and so on, they skyrocket. In combination with poor operating conditions (dust, moisture, absence of forced lubrication) it imposes very stringent requirements for strength closest to the pedal gear elements.

For roller skates, skateboards, etc. were offered three types of transmission: gear, flexible coupling and combined. Gear (US 1437314, DE 418603, SU 1248624, SU 1768197, EN 2156713, 8263 EN, WO 93/01870, WO 01/87436) can provide the required gear ratio. However, for this first of its link - gear pair consisting of a gear sector and pinion should have teeth module is not more than 1 mm At the above loads and operating conditions to achieve the strength and durability of such transfer, most likely, impossible. The solution could be a crank gear (WO 95/08372) or Cam-gear (WO 92 /06753) mechanism, but it has its disadvantages: low efficiency, the presence of "dead spots", the need for constant amplitude movements of the pedal.

As a flexible connection used drive chains and ropes, chain gears (DE 2726961, DE 4220798, EP 1163938) to provide the required ratio of the first sprocket should have a very small diameter, however, the number of teeth should not be less than 7...19. It corresponds to the chain with very small parts, not possessing the requisite strength. In cable transmission to obtain a sufficient gear ratio is possible only due to the introduction of the polyspast - more intermediate mobile and fixed units (RU 2010584, EN 2067481). However, large energy losses due to repeated bending of the cable around the blocks having a small diameter. When a small number of blocks (US 3285618, US 5492345, SU 1785718, EN 2108833) ratio and, accordingly, the speed is insufficient.

The most efficient seems to be the combined transmission including a gear mechanism and a mechanism with a flexible coupling (CH 99784, SU 12S4573, SU 1750718, US 4445698, US 5224719, US 5310202, WO 02/05910). However, in all these structures present a fundamental disadvantage: first, the most loaded link used gear pair. As mentioned above, to ensure their strength and durability is hardly possible.

As the closest analogue is selected design foot drive from SU 1750718 corresponding to declare on both main features: two-hinged pedals and the presence of the combined transmission. In addition, this design is a development of the previous two - SU 1248624 and SU 1284573 (US 4396204).

In the known construction the pedal is attached to the chassis of a vehicle with capacity which allows rotations through any angle in the vertical plane. In addition to the hinge, the pedal has a second fulcrum, which provide a record of its position close to horizontal. In this position, the pedal acts as a support for the feet, so let's call it a reference. The hinge is located at the toe of the pedal, the second support is in the heel part. The pedal is made unyielding and provided with a fixture for fixing the toe of the foot, representing rigid visor, the position of which is adjustable with screws.

Transfer kinematically connects the pedal with the Executive body of the device - the leading roller (pair of rollers). It includes sequentially interconnected by a gear mechanism, a mechanism with a flexible connection and a free-wheeling mechanism. When this pedal is rigidly connected with the leading spongy sector gear teeth driven gear of this mechanism with drive pulley (drum) mechanism with a flexible coupling. As a flexible connection is used the rope attached by their ends on the master and slave pulleys and covering them with one hand. Driven pulley (winding drum mechanism with flexible coaxial relationship with the Executive body of the device and connected with him through the mechanism of a free motion. As the latter is used ratchet mechanism. Inside the secondary pulley posted by return spring connecting the pulley to the frame of the drive and is intended to return the second winding rope and translation pedal position, most rejected from the reference.

The two disadvantages of the pedal with the front location of the hinge described above. In this design they are aggravated by the inclination of the pedal in its reference position toe down. Stepping movements are possible only on bent legs.

Disadvantages of a combined transmission, the first element of which is the gear mechanism, also described above. As checks were performed kinematic calculation and the calculation of loads for the described design. It turned out that she can give you more speed at the expense of the drive is not more than 1 km/h, at the same time causing severe fatigue due to the unnatural nature of the movements. Even the static load on the gear with a diameter of 19 mm twice the weight of the user, which is unacceptable for reasons of strength.

The proposed device for fixation of the foot pedal will not hold on the leg even double track skates, not to mention single. Strictly longitudinal position of the pedals is a bit inconvenient, as it does not match the natural position of the feet with the toes apart. Cable flexible connection accompanied by energy losses due to bending of the cable, the winding pulleys of small diameter. One-sided coverage of the pulley rope makes a unilateral act of the transmission, znachit, the use of only one group of muscles. Moreover, there is a need in return spring, cyclic deformation which consumes some of the energy. Ratchet mechanism generates noise during operation and causes the loss of a significant part of the stroke due to the large step of teeth of the ratchet.

The technical result of the proposed solutions is to improve the biomechanical properties of the known drive and increase its effectiveness. The technical problem is solved by changing schemes bearing pedals and transmission schemes. For this purpose, in the known foot actuator, comprising a pedal, which serves as a support for the legs and fastened pivotally with the possibility of turns in the vertical plane at a given angle from a fixed reference position, and the transfer (transmission), kinematically connecting the pedal with the Executive body and containing a gear mechanism, a mechanism with a flexible connection and a free wheel mechanism according to the claimed solution of the hinge when the pedal is in its Central part, a pedal pivotally connected to at least one of the flexible elements of the mechanism with a flexible coupling, the flexible elements mounted with their ends on the pulley mechanism with a flexible coupling and cover the pulleys of this mechanism with two sides, a driven pulley connected with the pinion gear teeth, and the sixth led is Erna this mechanism is connected with the Executive body of the device. As the flexible elements are thin strips of flexible material or cables.

Due to the placement of the hinge of the pedal is to the middle part when turning the pedals of her sock goes down. Due to this main useful force is the pressure of the toe of the foot, as in walking, and bending of the legs is greatly reduced. However, you can still robust enough to stand on the pedals due to the presence of the second support located behind the hinge, as the nearest equivalent. Due to the fact that the pedal is not directly connected with the timing mechanism, and a flexible element, the greatest burden lies on the flexible element, to ensure strength which is considerably lighter than the fine-grained gear. In addition, the diameter of the pulley mechanism with a flexible connection may be less than the diameter of the gear that allows you to increase the gear ratio of the transmission, and hence the speed. When the transfer of torque from the pulley of small diameter to bonded with him leading the large diameter gear wheel, the amount of force on the teeth decreases sharply, which eliminates the problem of the strength of gear teeth. Swivel pedal with flexible element is necessary because the pedal makes a turning movement, and a flexible element is reciprocating. Bilateral coverage skivvying relationship enables both one - and double acting actuator: first, by pressing the toe of the foot, then pressure from the heel. In addition, the energy required for deformation of the return spring (if it exists) in the direct course, useful used in reverse. All of this increases the efficiency of the drive.

Moreover, the hinge of the pedal is placed on the bracket firmly attached to the pedal, which increases the shoulder and the path of action of forces applied to the pedal, and hence useful work.

In the reference position the pedal is deflected from a horizontal toe up with adjustable angle. This makes a more natural position of the foot when the extension leg forward and allows you to increase the working stroke of the pedal.

Moreover, the longitudinal axis of the pedal is rotated relative to the longitudinal axis of the device, toe out angle that corresponds to the natural position of the feet, with the possibility of its regulation. The turn of the pedals socks apart makes the vehicle more comfortable. The ability to control the angles of the pedals in the vertical and horizontal planes allows to adapt the vehicle to the individual needs of the user.

Moreover, the toe of the pedal is made flexible with the possibility of deviation upwards from the plane of the pedal, and its back - elastic in the vertical plane the tee. Also the toe of the pedal can be mounted articulated with the possibility of deviation upwards from the plane of the pedal. The possibility of rejection toe pedal up in conjunction with limiter pedal allows you to save sufficient ground clearance without increasing the height of the vehicle. Elastic heel pedal gives a cushioning effect at the time of bearing feet on the heel.

In addition, the device for fixing the foot pedal is arranged to move its elements on the pedals in the longitudinal and transverse poisoning, as well as with the use of flexible materials and quick couplings. It provides a reliable, convenient and fast fixation of the skate on the foot, and in a wide range of Shoe sizes.

At the same time, the hinge connecting the pedal with a flexible coupling transmission, installed with the possibility of longitudinal movement relative to the pedal, which is necessary to compensate for the differences in the trajectories of points pedals and a flexible connection.

Moreover, as the flexible connections are used thin strips of flexible material. This reduces the diameter of the pulleys and eliminates energy losses due to bending of the rope.

Moreover, the driven pulley mechanism with a flexible connection connected to the pinion gear mechanism by means of the free wheel mechanism. This placement of the mechanism of a free x is Yes reduces the mass and moment of inertia of the parts with alternating rotation.

At the same time as the free-wheeling mechanism is used microgrooves mechanism. This reduces operation noise and loss stroke of the pedal.

You can also use the free-wheeling mechanism of the friction type, which completely eliminates the noise.

In addition, the pedal is connected to the frame of the actuator return spring providing the return of the pedal in its reference position. Spring also prevents the sagging rear of the vehicle when lifting legs, for example when walking on the stairs.

However, the transmission further includes a second free-wheeling mechanism and the second gear mechanism, connected to each other, and the second freewheel mechanism is installed on the opposite control action relative to the first driven gear of the second gear mechanism is coaxial with the driven gear of the first and the design second gear mechanism provides the same to the first direction of rotation of the driven gear in the opposite direction of rotation leading.

It is also possible that the transmission includes a second mechanism with a flexible coupling, the second freewheel mechanism and the second gear mechanism, connected to each other, and the second mechanism with a flexible coupling has a General bearing pulley with the first mechanism and cross-location flexible ale is new, and the driven gear of the second gear mechanism is coaxial with the driven gear of the first. Version of the transfer, including additional mechanism of a free stroke with the opposite direction of the action and the modified gear mechanism provides the possibility of a double-action actuator. The driving force is created as you rotate the pedals forward, and when it is returned to the reference position. This allows you to increase the speed or intermittently to rest one of the muscle groups of the legs. The above applies to the version of the transmission, additionally comprising a modified mechanism with a flexible coupling, the free-wheeling mechanism and the timing mechanism.

The claimed technical solution is illustrated a schematic images 1, 2, 3 and 4. Figure 1 shows the foot control with the transfer of unilateral action, side view and front; figure 2 - transmission bilateral actions with modified gears, figure 3 - transmission bilateral actions with a modified mechanism with a flexible coupling; figure 4 is an exemplary external view of a roller skate with the drive elements and device fixation of the foot, side view and top.

The drawing shows the following numeric codes: 1 - pedal; 2 - toe pedal; 3 - back pedals; 4 - the hinge of the pedal; 5 - bracket pedal; 6 - basic pedal position; 7 - second pillar of p is given; 8 - limiter pedal; 9 - return spring; 10 - connecting hinge; 11 - bracket; 12 - flexible elements; 13 - supporting pulley; 14 is driven pulley; 15 - a leading gear wheel; 16 - ring gear; 17 is a leading axis, the Executive body); 18 - mechanism of free running; 1 the Executive body of the device; 20 - a leading gear; 21 - ring gear; 22 - idler gear; 23 - freewheel mechanism; 24 - thrust pulley; 25 - flexible elements; 26 - slave pulley; 27 - heel stop; 28 - rear strap; 29 - side fence; 30 - front strap; 31 - naskova emphasis; 32 - casing of the transmission.

Pedal 1 (figure 1) has a movable toe 2 and elastic back 3. She totters to the frame of the actuator by means of the hinge 4, which is connected by a bracket 5 or directly. The location of the hinge relative to the pedal are selected according to conditions sufficient stability of the user when standing on the pedals with one hand and minimal shoulder the weight force of the user relative to the hinge on the other. The distance from the heel of the pedal to the projection of the hinge on it can be 0.5...0.6 length of the pedal.

In its reference position, the pedal rests on the second support 7, in the position of maximum deviation - limiter 8. Average physiological angle of turn of the pedals 9 degrees, the angle of inclination to the horizon within 6 degrees. The position of the limiter, in combination the with moving the toe of the pedal, must ensure the greatest possible angle of rotation of the pedal at a given value of the ground clearance and possibly lower the height of the vehicle. Spring 9 provides return the pedal to its original position. In the variants with the transfer of dual action she may be missing.

Connection joint 10, is able to rotate around its axis and to move on connected with the pedal bracket 11, connects the pedal with one of the flexible elements 12. The role of the bracket 11 can play a connecting rod pivotally connected to the pedal and a flexible element and located approximately parallel to the latter. Flexible elements mounted with their ends on the pulley mechanism with flexible connectivity - support 13 and the slave 14, and cover them with two sides. The flexible elements can be manufactured in the form of tapes of high-strength fabric or thin steel cables.

Driven pulley 14 coaxially and rigidly fixed to the pinion 15 of the timing mechanism. The gear 15 is engaged with the driven gear 16. There are other possible schemes gear mechanism, for example with internal gearing. The gear 16 is freely mounted on a pivotal axis 17 and is connected with it through the mechanism of a free motion (overrunning clutch) 18. The latter is rigidly fixed on the axis 17 and through it or is directly linked to the Executive body of the device 19. It is possible to install mechanisms is as free running coaxially with the pinion 15, as shown in figure 2 and 3. It is advisable to apply microgroove and possibly friction freewheel mechanisms, such as roller, wedge, or other

Transmission bilateral steps of figure 2 further includes a modified gear mechanism, containing, besides the leading 20 and driven gear 21, the intermediate gear 22 and the mechanism of a free stroke 23 mounted with a counter relative to the main such a mechanism, the direction of action. The place of installation may be different, for example, as in figure 1, or coaxially with the intermediate gear 22.

Transfer double acting 3 further includes a modified mechanism with a flexible coupling, the free-wheeling mechanism and the timing mechanism. The mechanism with flexible communication contains General with the main mechanism elongated support pulleys 24, intersecting flexible elements 25 and driven pulleys - core 14 and an additional 26, freely mounted on the axle and rotatable in opposite directions. Additional free-wheeling mechanism 23 is installed with a counter relative to the main mechanism of action. Their locations may be different, as in figure 1.

Device for fixation of the foot pedal (figure 4) includes the heel stop 27, the position and/or size of which can be adjusted in accordance with the size of the bouvy user; secured on the rear strap 28 with quick connection, such as "Velcro"; right and left lateral 29 fixed on them front strap 30 and adjustable Noskov stop 31. Sports-track skates may be appropriate to use special shoes attached to the pedal.

The device is actuated by pressing on the pedal the front part of the foot and, additionally, the pulling force of the ankle, passed by the belt 28 on the heel of the pedal. When turning the pedals around the axis of the hinge 4 connecting the hinge 10 carries fixed to it a flexible element that causes the rotation of the pulleys 13 and 14 of the mechanism with exible links. The rotation is transmitted to the pinion gear 15 gear mechanism, and further to the driven gear 16 and, through the mechanism of a free motion 18 on the leading axle 17 or on the Executive body 19.

By turning the head of the connecting hinge 10 and moving the bracket 1 1 rotate the pedal does not cause lateral deformation of the flexible element. The amplitude of rotation of the pedal is chosen arbitrarily by the user, the limiter 8 only specifies its value.

In the case of the drive transmission unilateral action (figure 1) active phase of the motion of the Executive body meets only direct pedal. Reverse its course ensures the weak pressure of the heel on the heel of the pedal and/or under the action of return spring 9. He is accompanied by a reverse rewinding the flexible element and reverse rotation of the pulleys and gears. However, the free-wheeling mechanism 18 does not transmit this rotation to the lead axis, so that it continues passive rotation in the same direction (coasting, coasting, then the active phase is repeated.

When using transmission is bidirectional (figure 2 and 3) active or passive movement phase may correspond to any pedal - both direct and reverse. When a direct course of action first, the main chain of mechanisms does not differ from the above. If the speed of rotation of the pedal is large enough, and the free-wheeling mechanism 18 tends to overtake the leading wheel 15 (or leading axle 17, if it is installed on it), the phase of the movement will be active, if not something passive. Additional chain mechanisms, the rotation of the driven gear 21 and the leading axis would have to be reversed: in the scheme of figure 2 due to the presence of the intermediate gear 22, in the scheme of figure 3 is a view of cross-location flexible elements 25. However, this does not happen with the proper installation of the freewheel mechanism 23.

When reverse motion of the pedal mechanism of a free motion of the main chain disconnecting the driven pulley 14, and hence the pedal, with the timing mechanism and the leading axis 17. At the same time the mechanism of a free motion on the additional chain 23 connects the driven pulley 14 (2) or 26 (3), therefore, the pedal, the gear mechanism and the leading axis. When the direction of rotation of the driven gear 21 additional chain is the same as that of similar gear 16 of the main chain with the direct course of the pedal. Therefore, if the speed of rotation of the pedal enough, its reverse is also becoming active phase, as a direct course.

If the leading axis 17 rotates, and the pedal is fixed, then all three versions of the drive mechanisms of a free motion alienate leading axle with the pedal, thus providing the possibility of movement coasting (coast). However, at the slightest turn of the Executive body and the leading axis in the opposite direction the mechanisms of the free-wheeling lock, passing effort in the opposite direction. In the scheme with unilateral transfer steps backward force sultry counter force of the foot or by the reaction of the second bearing 7. In circuits with transmission double acting two chain mechanisms transmit on a common supporting pulley 13 or 24 two different in magnitude and opposite in direction efforts, parrying each other. Thus, regardless of the selected transmission schemes, the rotation of the working body is possible only in one direction, the reverse is impossible. In relation to individual vehicles this is useful when standing, the initial acceleration and uphill.

1. the food drive, includes foot pedal, which serves as a support for the legs and fastened pivotally with the possibility of turns in the vertical plane at a given angle from a fixed reference position, and the transmission, kinematically connecting the pedal with the Executive body and including a mechanism with a flexible coupling, gear mechanism and the free-wheeling mechanism, characterized in that the hinge of the pedal is located in the middle part, the pedal is connected to at least one of the flexible elements of the mechanism with a flexible coupling, the flexible elements mounted with their ends on the pulley mechanism with a flexible coupling and cover the pulleys of this mechanism with two sides, one of the pulleys is connected to pinion gear mechanism.

2. The pedal actuator according to claim 1, characterized in that the gear mechanism driven gear connected with the Executive body of the device.

3. The pedal actuator according to claim 1, characterized in that the hinge of the pedal is placed on the bracket firmly attached to the pedal.

4. The pedal actuator according to claim 1, characterized in that the reference position of the pedal is deflected from a horizontal toe up with adjustable angle.

5. The pedal actuator according to claim 1, characterized in that the longitudinal axis of the pedal is rotated about the axis of the device, toe out angle that corresponds to the natural position stopn the th, with the possibility of its regulation.

6. The pedal actuator according to claim 1, characterized in that the toe of the pedal is made flexible with the possibility of deviation upwards from the plane of the pedal, and its back - elastic in the vertical plane.

7. The pedal actuator according to claim 1, characterized in that the toe pedals fastened pivotally with the possibility of deviation upwards from the plane of the pedal.

8. The pedal actuator according to claim 1, characterized in that the device for fixing the foot pedal is arranged to move its elements on the pedals in the longitudinal and transverse directions, as well as with the use of flexible materials and quick couplings.

9. The pedal actuator according to claim 1, characterized in that the hinge connecting the pedal with a flexible coupling transmission, installed with the possibility of longitudinal movement relative to the pedal.

10. The pedal actuator according to claim 1, characterized in that the flexible elements are thin strips of flexible material or cables.

11. The pedal actuator according to claim 1, characterized in that the driven pulley mechanism with a flexible connection connected to the pinion gear mechanism by means of the free wheel mechanism.

12. The pedal actuator according to claim 11, characterized in that the freewheel mechanism is used microgrooves mechanism.

13. The pedal actuator according to claim 11, characterized in that Thu is applied friction freewheel mechanism.

14. The pedal actuator according to claim 1, characterized in that the pedal is connected to the frame of the actuator return spring providing the return of the pedal in its reference position.

15. The pedal actuator according to claim 1, wherein the transmission further includes a second free-wheeling mechanism and the second gear mechanism, connected to each other, and the second freewheel mechanism is installed opposite direction relative to the first driven gear of the second gear mechanism is coaxial with the driven gear of the first and the design second gear mechanism provides the same to the first direction of rotation of the driven gear in the opposite direction of rotation leading.

16. The pedal actuator according to claim 1, wherein the transmission further includes a second mechanism with a flexible coupling, the second freewheel mechanism and the second gear mechanism, connected to each other, and the second mechanism with a flexible coupling has a General bearing pulley with the first mechanism and cross-location flexible elements and the driven gear of the second gear mechanism is coaxial with the driven gear of the first.



 

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