Wheeled vehicle

Abstract

The invention relates to a wheeled vehicle with a frame (5) with steered front wheels (1) and rear wheels (4) controlled by a handlebar (3), footrests (7) for the driver to place his feet on both sides of the vehicle, and a transmission mechanism (8) with a rocker arm (9), wherein the rocker arm (9) has elements that enclose the driver's thighs or torso at its upper free end, and the transmission mechanism (8) comprises a driven wheel (4a) of the rear wheels (4), a main axle (10) placed in the frame (5), around which the rocker arm (9) rotates, and an axle (14) with a main wheel (11) mounted on it, which is connected to the driven wheel (4a) of the rear wheels (4) by a ring transmission link (6), wherein the rocker arm (9) is connected to the main wheel (11) by a set of rotating elements (12, 13, 15, 16). The invention is characterized in that the set of rotating elements (12, 13, 15, 16) comprises a first rotating element (12) and a second rotating element (13) mounted on the main axle (10) and pivotally coupled to the rocker arm (9), a third rotating element (15) and a fourth rotating element (16) mounted on the axle (14) and pivotally coupled to the main wheel (11), wherein the first rotating element (12) is coupled to the third rotating element (15) by a first link (17) in the same direction, the second rotating element (13) is coupled to the fourth rotating element (16) by a second link (18) in the opposite direction, and in the coupling between the first rotating element (12) and the rocker arm (9) and the coupling between the third rotating element (15) and the main wheel (11), one is unidirectional and the other is bidirectional, and in the coupling between the second rotating element (13) and the rocker arm (9) and the coupling between the fourth rotating element (16) and the main wheel (11), one is unidirectional and the other is bidirectional.

Description

[0001] The object of the present invention is a wheeled vehicle for human mobility, comprising: a frame having a front wheel and a rear wheel controlled by handlebars; a support for a rider to place his feet on either side of the vehicle, and the vehicle having a transmission mechanism with a rocker arm having elements at its upper free end that enclose the rider's thighs or torso; and a transmission system comprising: a rear wheel drive wheel; a main axle disposed in the frame, the main axle rotating when the rocker arm rotates; and an axle on which the main wheel is mounted, the axle being connected to the rear wheel drive wheel via a ring-shaped transmission link, the rocker arm being connected to the main wheel via a set of pivoting members.

[0002] One of the basic wheeled vehicles that uses muscle power to move a person is the bicycle. A typical bicycle has a frame with a front wheel and a rear wheel. Handlebars are mounted on the frame and are used to change the direction of the front wheel. The bicycle is powered by the rider's leg muscles using a crank mechanism, and the power is transmitted from the crank mechanism to the rear wheel through a ring link (especially the chain link).

[0003] Many modifications to typical bicycle designs are well-known, for example, in terms of the number of wheels or propulsion method. Specifically, in addition to or in place of a crank drive, another type of drive mechanism, such as a rocker arm, is used. For example, specification CN2652783Y discloses a bicycle with two wheels and a frame, to which swing pedals for the rider's feet are attached. The bicycle seat rests on a rocker arm, which is connected via a set of rods and links to the rear wheel hub and the swing pedals. The rider's alternating lifting and squatting causes a swinging motion of the seat rod and the pedals, which transmits power through the rods and links to the rear wheel, thus moving the bicycle.

[0004] On the other hand, WO2019 / 184644A1 discloses a bicycle including a front wheel, a rear wheel, handlebars, pedals, a frame, a connecting rod, a rocker arm, a seat, and a gear mechanism for transmitting the swinging force of the rocker arm to the rear wheel assembly. The pedals are pivotally mounted at the lower end of the frame's center. The rocker arm and pedals are hinged to both ends of the connecting rod. The seat is attached to the hinged end of the rocker arm's connecting rod, and the end of the rocker arm away from the seat is hinged to the front end of the frame and geared to the rear wheel assembly via the gear mechanism. Movement of the rider's weight allows the bicycle to move.

[0005] Another similar design is known from DE3001584A1. This specification discloses a wheeled vehicle with fixed foot pedals and a seat movable in a vertical plane. The seat is supported on a spring-loaded lever, the axis of which is flush with the rider's knee. Downward movement of the lever drives the rear wheel via a crank mechanism, pinion, and one-way clutch.

[0006] Additionally, according to US5042828A, a bicycle is described in which the axle of the rear drive wheel is mounted in the yoke at one end of the longitudinal frame, and the steering front wheel is mounted at the other end of the frame. A rocker arm is mounted on the frame and pivots about an axis concentric with the drive wheel axis. A seat is mounted at the other end of the rocker arm. Furthermore, the bicycle includes a mechanism for converting the speed of the rocker arm to the speed of the drive wheel, wherein a high-speed element of the concentric speed conversion mechanism is connected to the axle, and a low-speed element coupled to the high-speed element via a derailleur is connected to the rocker arm.

[0007] According to the description of DE1139402B, the bicycle is propelled by the forward and backward movement of a seat that moves on a guide rail located on the horizontal part of the frame. This movable seat is connected to a rocker arm, which, driven by the seat, performs a rocking motion. The rocker arm's rocking motion, through a mechanism containing eight sprockets (two of which are partial sprockets), causes another sprocket to rotate forward. This other sprocket drives a sprocket rigidly connected to and coaxial with the rear wheel of the bicycle via a chain.

[0008] According to WO2015 / 037860A1, a bicycle is described in which the seat is attached to the end of a rocker arm. The other end of the rocker arm is connected to the bicycle frame via a planetary gear-based transmission system. The rocker arm is also connected to the bicycle frame via a pair of spring-loaded shock absorbers. The rider propels the bicycle by pedaling, while simultaneously rocking the rocker arm by alternately applying and releasing pressure on the seat with their body weight.

[0009] Furthermore, according to Polish patent specification PL221914B1, a muscle-powered vehicle is described, in which the user assumes a standing position and propels the vehicle using their arms. The vehicle comprises: two drive wheels equipped with independent mechanisms to convert the rocking motion of a lever into unidirectional rotational motion of the drive wheel axles; at least one driven wheel attached to allow rotation about a vertical axis; and a low-suspension platform directly attached to the housing of the mechanism. The single drive mechanism includes: a central shaft with two gears equipped with one-way clutches mounted thereon; and a lever-driven ring with a pair of gears attached to the ring; a first outer shaft with two gears mounted thereon; and a second outer shaft with two additional gears mounted thereon. The entire device is interconnected such that when an internal gear mounted on the lever-operating ring drives the first wheel placed on the first outer shaft and further drives the first wheel placed on the central shaft via a second wheel placed on that shaft, a second external gear mounted on the same ring drives the first wheel placed on the second outer shaft and, in turn, drives the second wheel placed on the central shaft via the second wheel placed on that shaft. Therefore, the two gears located on the central shaft always rotate in opposite directions. As a result, when one of these gears uses the principle of a one-way clutch to transmit power from the manual operating lever to the central shaft and then forward to the drive wheel, the other gear rotates freely.

[0010] Polish patent application P.443633 (unpublished) discloses a bicycle-like vehicle equipped with a transmission mechanism featuring a top-mounted rocker arm that encloses the rider's thighs or torso. The transmission mechanism includes a rear drive wheel, a main axle embedded in the vehicle frame (around which the rocker arm rotates), and an axle on which the main wheel is mounted (connected to the rear drive wheel via a ring-shaped linkage). The rocker arm is connected to the main wheel via a set of five gears.

[0011] The object of this invention is to develop a wheeled vehicle design that, while providing the typical advantages of bicycles as a relatively fast and healthy mode of transportation, will further enable the rider's muscles other than leg muscles (especially the skeletal muscles of the upper body) to be exercised and kept in good condition. Furthermore, the drivetrain of the wheeled vehicle presented is easy to implement, as it includes only the components typically found in bicycles. Another object of this invention is to reduce the number of wheels in the drivetrain and to facilitate the maintenance of the drivetrain.

[0012] This invention relates to a wheeled vehicle comprising: a frame having a steering front wheel and a rear wheel controlled by handlebars; pedals for a driver to place their feet on either side of the vehicle; and a transmission mechanism with a rocker arm. The rocker arm has an element at its upper free end that encloses the driver's thigh or torso. The transmission mechanism includes a drive wheel for the rear wheel, a main axle disposed in the frame (around which the rocker arm rotates), and an axle on which the main wheel is mounted, the axle being connected to the driven wheel of the rear wheel via a ring-shaped transmission link. The rocker arm is connected to the main wheel via a set of rotating elements. The invention is characterized in that the set of rotating elements includes: A first rotating element and a second rotating element are mounted on the main shaft and pivotally coupled to the rocker arm. The third and fourth rotating elements are mounted on the axle and pivotally coupled to the main wheel. The first rotating element is coupled to the third rotating element in the same direction via a first connecting rod. The second rotating element is reverse-coupled to the fourth rotating element via the second connecting rod. and In the coupling between the first rotating element (12) and the rocker arm (9) and the coupling between the third rotating element (15) and the main wheel (11), one is unidirectional and the other is bidirectional. In the coupling between the second rotating element (13) and the rocker arm (9) and the coupling between the fourth rotating element (16) and the main wheel (11), one is unidirectional and the other is bidirectional.

[0013] Preferably, the transmission link, the first link, and the second link are chains, the transmission wheel and the main wheel are gears, and the rotating element has an arc-shaped profile at a certain distance from the axis of rotation, the profile having circumferentially placed teeth.

[0014] Preferably, the transmission wheel and the main wheel are pulleys, and the rotating element has an arc-shaped profile at a certain distance from the axis of rotation, the profile having a circumferentially extending belt groove. More preferably, the transmission link, the first link, and the second link are toothed belts. Furthermore, even more preferably, the transmission link, the first link, and the second link are V-belts.

[0015] Preferably, the second link includes a device for preventing link friction. More preferably, the device for preventing link friction is a clamp having a gap allowing the crossing second link to pass through it. Furthermore, even more preferably, the device for preventing link friction is an elongated C-shaped clamp.

[0016] Preferably, the enclosure element is in the form of a driver's seat, which has an upward-facing rear support and a front support.

[0017] Preferably, at least one of the rotating elements is a wheel.

[0018] Preferably, at least one of the rotating elements is a wheel sector.

[0019] Preferably, at least one of the rotating elements includes a pair of mounting points to which the connecting rod is connected.

[0020] Preferably, at least one of the connecting rods has a tensioner.

[0021] The subject matter of this invention is explained in the embodiments shown in the accompanying drawings, in which... Figure 1 This illustration shows a wheeled vehicle and how a driver propels the vehicle using hip movements. Figure 2 A wheeled vehicle with marked construction details is shown. Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 8 The illustration shows schematic close-ups of the vehicle propulsion system components in various embodiments. Figure 6 An embodiment of a measure to prevent linkage friction is shown.

[0022] Figure 2 A diagram of a wheeled vehicle is shown, equipped with: a frame 5 having a front wheel 1 mounted in a front fork 2 and controlled by a handlebar 3, and a rear wheel 4 mounted in a rear fork 5'; and pedals 7 for the rider to place their feet on either side of the vehicle. The vehicle is equipped with a drive mechanism 8 with a rocker arm 9. The rocker arm 9 has an element at its upper free end that encloses the rider's thighs or torso, and the drive mechanism 8 includes: a drive wheel 4a of the rear wheel 4; a main axle 10 mounted in the frame 5 (around which the rocker arm 9 rotates); and an axle 14 with a main wheel 11 mounted on it, the axle being connected to the drive wheel 4a of the rear wheel 4 via a ring drive mechanism 6. The rocker arm 9 is connected to the main wheel 11 via a set of rotating elements 12, 13, 15, and 16; details of the drive mechanism will be discussed further in subsequent figures.

[0023] The containment element is understood to be an element that the driver can push against with his / her abdomen, lower abdomen, or front of her thigh to push and thus swing the rocker arm 9 forward, and that the driver can push against with his / her back, buttocks, or back of her thigh to swing the rocker arm 9 backward. The propulsion method is... Figure 1 It is shown schematically in the diagram.

[0024] To move the wheeled vehicle according to the invention, for example, the driver makes a reciprocating motion with his / her hips while pressing down on the handlebars 3 with his / her hands and the foot pedals 7 with his / her feet. This movement of the driver causes the rocker arm 9 to swing, thereby driving the vehicle. Since the forward and backward movements of the hips and other parts of the body are converted into propulsion, many muscles of the driver's upper body are involved in this movement, especially the skeletal muscles that keep the driver's spine in good position.

[0025] The transmission mechanism of the vehicle according to the invention can be made almost entirely from components commonly used in bicycle manufacturing (such as, for example, gears, bicycle chains, and supports). Due to the design of the transmission mechanism, the driver can continuously control the vehicle speed by adjusting the swing range of the rocker arm 9. The design of the enclosure elements proposed in this embodiment (including a front support 9' for the driver's thighs, lower abdomen, or abdomen, and a rear support 9'' for the driver's thighs, hips, or back) is both comfortable and safe, as it ensures that the driver can maintain a seated posture during driving, and furthermore, the driver will not be restrained by the rocker arm 9 in the event of an accident. The front support 9' and rear support 9'' for the driver's thighs and torso can be respectively shaped as the front and rear of an ergonomic seat, so that the swinging motion of the torso when the driver is seated will be effectively converted into the swinging motion of the rocker arm 9 and propel the vehicle.

[0026] Details of the transmission mechanism 8 are shown. Figure 3 , Figure 4 , Figure 5 , Figure 7 and Figure 8 It can be seen that the set of rotating elements 12, 13, 15, and 16 includes: a first rotating element 12 and a second rotating element 13 mounted on the main shaft 10 and pivotally coupled to the rocker arm 9; and a third rotating element 15 and a fourth rotating element 16 mounted on the axle 14 and pivotally coupled to the main wheel 11.

[0027] The first rotating element 12 is coupled to the third rotating element 15 in the same direction through the first connecting rod 17, and the second rotating element 13 is coupled to the fourth rotating element 16 in the opposite direction through the second connecting rod 18.

[0028] exist Figure 3 , Figure 4 , Figure 5 , Figure 7In the illustrated embodiment, the first rotating element 12 and the second rotating element 13 rotate with the rocker arm 9, i.e., they oscillate back and forth according to the current movement of the rocker arm 9. Conversely, the third rotating element 15 and the fourth rotating element 16 rotate forward with the main wheel 11 and rotate freely in the opposite direction. The one-way coupling of the rotating elements 15, 16 can be achieved by means of a one-way clutch. When these rotating elements 15, 16 are wheels, as in the example implementations shown in the figures, the one-way clutch can be a freewheel or a box.

[0029] The first rotating element 12 is coupled to the third rotating element 15 via a first link 17, and these elements rotate in the same direction. The second rotating element 13 is coupled to the fourth rotating element 16 via a second link 18, in such a way that these elements rotate in opposite directions. For this purpose, the links are connected to the second rotating element 13 and the fourth rotating element 16 in a cross arrangement (e.g., in...). Figure 3 and Figure 4 In the embodiment shown, this could be a figure-eight arrangement.

[0030] With this design of the transmission mechanism 8, gear shifting occurs in the following manner: Tilting the rocker arm 9 forward causes the first rotating element 12 to rotate forward in the vehicle's direction of travel. The third rotating element 15 also rotates forward, and the main drive wheel 11 rotates accordingly. At this time, the second rotating element 13 rotates forward, and the fourth rotating element 16 rotates backward; however, since element 16 and wheel 11 are unidirectionally coupled, they do not affect the rotation of the main drive wheel 11. Pivoting the rocker arm 9 backward causes the second rotating element 13 to pivot backward, which in turn causes the fourth rotating element 16 to pivot forward, thus again causing wheel 11 to rotate forward. Simultaneously, wheel rotating elements 12 and 15 rotate backward; however, due to the unidirectional coupling of element 15 and wheel 11, this does not affect the rotation of wheel 11.

[0031] exist Figure 8 In the illustrated embodiment, the third rotating element 15 is not unidirectionally coupled to the main wheel 11, and the first element 12 is not bidirectionally coupled to the rocker arm 9. Instead, there is bidirectional coupling between the third rotating element 15 and the main wheel 11, and unidirectional coupling between the first element 12 and the rocker arm 9. Thus, the first connecting rod 17 does not oscillate but only rotates forward. When the rocker arm 9 tilts forward, it pulls the first rotating element 12 forward, while when the rocker arm 9 tilts backward, the first connecting rod 17, as well as the first element 12 and the third element 15, rotate forward without changing the speed of the transmission mechanism.

[0032] Similarly, unidirectional coupling can be used between the second rotating element 13 and the rocker arm 9, while bidirectional coupling can be used between the fourth rotating element 16 and the main wheel 11. Thus, when the rocker arm 9 tilts backward, the second connecting rod 18 pulls the second rotating element 13 backward, thereby causing the second connecting rod 18 to move. This, in turn, pulls the fourth rotating element 16 forward, causing the main wheel 11 to move accordingly. When the rocker arm 9 tilts forward, the second element 13 and the fourth element 16 rotate without changing the speed of the transmission mechanism.

[0033] exist Figure 3 , Figure 4 and Figure 8 In the illustrated embodiment, rotating elements 12, 13, 15, and 16 are wheels. Preferably, these wheels are gears or pulleys (not shown), and connecting rods 17 and 18 will also be chains, toothed belts, or V-belts, respectively.

[0034] exist Figure 5 In the illustrated embodiment, rotating elements 15 and 16 are wheels, while rotating elements 12 and 13 have an arcuate profile at a certain distance from the axis of rotation. In other embodiments (not shown), all rotating elements 12, 13, 15, and 16 may be sectors of wheels, or may generally only have an arcuate profile (e.g., to save material). Of course, only one of elements 12, 13, 15, and 16 can be of this form, and one is free to choose which rotating element 12, 13, 15, and 16 and how many elements are of this form.

[0035] Depending on the linkage used (chain, toothed belt, V-belt), rotating elements 12, 13, 15, and 16 should be equipped with a suitable coupling system (teeth, slots, etc.). If another type of linkage is used, such as a cable or rope, a single linkage mounting point (not shown) can also be used.

[0036] exist Figure 7 In the illustrated embodiments, different types of solutions are used for the rotating elements 12 and 13, with no arching whatsoever. Instead, these elements are equipped with mounting points to which the links 17 and 18 are attached. As can be seen from the various manufacturing examples shown, the rotating elements 12, 13, 15, and 16 can be of any shape and form, as long as they are suitable for attaching the links and giving the links sufficient movement to rotate the wheel 11 forward. In this example, an additional tensioner 20 is used to allow the links to work more effectively by preventing the links from slipping off the wheels 15 and 16.

[0037] In the embodiment shown in the figure, the second link 18 includes a device 19 for preventing link friction. Figure 6An example of such a device 19 is shown, specifically a clamp having a gap through which the cross link of the second link 18 passes. The device could also be an elongated "C"-shaped clamp (not shown). The transmission mechanism 8 can operate even without such a device 19, but it will wear out faster and produce more noise due to friction at the intersection of the link 18, so this solution is preferable.

[0038] Of course, the present invention is not limited to the above embodiments, and the features specified in the claims can be combined into any combination suitable for a specific application of the solution without departing from the scope of protection. Claims (as amended under Article 19 of the Treaty) 1. A wheeled vehicle comprising: a frame (5) having a steering front wheel (1) and a rear wheel (4) controlled by a handlebar (3); footrests (7) for a driver to place his feet on either side of the vehicle, and the vehicle being equipped with a transmission mechanism (8) having a rocker arm (9) having an element at its upper free end that encloses the driver's thigh or torso, wherein the transmission mechanism (8) comprises: a drive wheel (4a) of the rear wheel (4); and a main axle (10) disposed on the vehicle. In the frame (5), the rocker arm (9) rotates about the main axle; and the main wheel (11) is connected to the drive wheel (4a) of the rear wheel (4) via a ring-shaped transmission link (6), wherein the rocker arm (9) is connected to the main wheel (11) via a set of rotating elements (12, 13, 15, 16), the vehicle is characterized in that the transmission mechanism (8) further includes an axle (14) on which the main wheel (11) is mounted, and the set of rotating elements (12, 13, 15, 16) includes: The first rotating element (12) and the second rotating element (13) are both mounted on the main axle (10) and pivotally coupled to the rocker arm (9). The third rotating element (15) and the fourth rotating element (16) are both mounted on the axle (14) and pivotally coupled to the main wheel (11). The first rotating element (12) is coupled to the third rotating element (15) via a first connecting rod (17) in such a way that the first rotating element and the third rotating element (12, 15) rotate in the same direction. The second rotating element (13) is coupled to the fourth rotating element (16) via the second link (18) in such a way that the second rotating element and the fourth rotating element (13, 16) rotate in opposite directions. and In the coupling between the first rotating element (12) and the rocker arm (9) and the coupling between the third rotating element (15) and the main wheel (11), one is unidirectional and the other is bidirectional. In the coupling between the second rotating element (13) and the rocker arm (9) and the coupling between the fourth rotating element (16) and the main wheel (11), one is unidirectional and the other is bidirectional. 2. The vehicle according to claim 1, characterized in that the transmission link (6), the first link (17) and the second link (18) are chains, the transmission wheel (4a) and the main wheel (11) are gears, and the rotating elements (12, 13, 15, 16) have an arc-shaped profile at a certain distance from the axis of rotation, the profile having circumferentially placed teeth. 3. The vehicle according to claim 1, characterized in that the transmission wheel (4a) and the main wheel (11) are pulleys, and the rotating elements (12, 13, 15, 16) have an arcuate profile at a certain distance from the axis of rotation, the profile having a circumferentially extending belt groove. 4. The vehicle according to claim 3, wherein the transmission link (6), the first link (17) and the second link (18) are toothed belts. 5. The vehicle according to claim 3, wherein the transmission link (6), the first link (17) and the second link (18) are V-belts. 6. The vehicle according to claim 1, wherein the second link (18) is provided with a device (19) for preventing link friction. 7. The vehicle according to claim 6, wherein the device (19) for preventing link friction is a clamp having a gap that allows the crossed second link (18) to pass through it. 8. The vehicle according to claim 7, wherein the device (19) for preventing connecting rod friction is an elongated C-shaped clamp. 9. The vehicle according to claim 1, wherein the enclosure element is in the form of a driver's seat, the seat having an upward-facing rear support (9') and a front support (9'). 10. The vehicle according to claim 1, wherein at least one of the rotating elements (12, 13, 14, 15) is a wheel. 11. The vehicle according to claim 1, wherein at least one of the rotating elements (12, 13, 14, 15) is a wheel sector. 12. The vehicle according to claim 1, wherein at least one of the rotating elements (12, 13, 14, 15) includes a pair of mounting points to which the associated first link or second link (17, 18) is connected. 13. The vehicle according to claim 1, wherein at least one of the first link and the second link (17, 18) is provided with a tensioner (20).

Claims

1. A wheeled vehicle comprising: a frame (5) having a steering front wheel (1) and a rear wheel (4) controlled by a handlebar (3); footrests (7) for a driver to place his feet on either side of the vehicle, and the vehicle being equipped with a transmission mechanism (8) having a rocker arm (9) at its upper free end having an element for enclosing the driver's thigh or torso, and the transmission mechanism (8) comprising: The drive wheel (4a) of the rear wheel (4); the main axle (10) disposed in the frame (5), the rocker arm (9) rotating about the main axle; and the axle (14) on which the main wheel (11) is mounted, the axle being connected to the driven wheel (4a) of the rear wheel (4) via an annular transmission link (6), wherein the rocker arm (9) is connected to the main wheel (11) via a set of rotating elements (12, 13, 15, 16), the vehicle being characterized in that the set of rotating elements (12, 13, 15, 16) comprises: A first rotating element (12) and a second rotating element (13) are mounted on the main shaft (10) and pivotally coupled to the rocker arm (9). The third rotating element (15) and the fourth rotating element (16) are mounted on the axle (14) and pivotally coupled to the main wheel (11). The first rotating element (12) is coupled to the third rotating element (15) in the same direction through the first connecting rod (17). The second rotating element (13) is reverse-coupled to the fourth rotating element (16) via the second connecting rod (18). and In the coupling between the first rotating element (12) and the rocker arm (9) and the coupling between the third rotating element (15) and the main wheel (11), one is unidirectional and the other is bidirectional. In the coupling between the second rotating element (13) and the rocker arm (9) and the coupling between the fourth rotating element (16) and the main wheel (11), one is unidirectional and the other is bidirectional.

2. The vehicle according to claim 1, characterized in that, The transmission link (6), the first link (17) and the second link (18) are chains, the transmission wheel (4a) and the main wheel (11) are gears, and the rotating elements (12, 13, 15, 16) have an arc-shaped profile at a certain distance from the axis of rotation, and the profile has circumferentially placed teeth.

3. The vehicle according to claim 1, characterized in that, The transmission wheel (4a) and the main wheel (11) are pulleys, and the rotating elements (12, 13, 15, 16) have an arc-shaped profile at a certain distance from the axis of rotation, and the profile has a belt groove extending circumferentially.

4. The vehicle according to claim 3, characterized in that, The transmission link (6), the first link (17) and the second link (18) are toothed belts.

5. The vehicle according to claim 3, characterized in that, The transmission link (6), the first link (17) and the second link (18) are V-belts.

6. The vehicle according to claim 1, characterized in that, The second link (18) is equipped with a device (19) for preventing link friction.

7. The vehicle according to claim 6, characterized in that, The device (19) for preventing link friction is a clamp having a gap that allows the crossed second link (18) to pass through it.

8. The vehicle according to claim 7, characterized in that, The device (19) for preventing connecting rod friction is a slender C-shaped clamp.

9. The vehicle according to claim 1, characterized in that, The enclosure element is in the form of a driver's seat, which has an upward-facing rear support (9') and a front support (9').

10. The vehicle according to claim 1, characterized in that, At least one of the rotating elements (12, 13, 14, 15) is a wheel.

11. The vehicle according to claim 1, characterized in that, At least one of the rotating elements (12, 13, 14, 15) is a wheel sector.

12. The vehicle according to claim 1, characterized in that, At least one of the rotating elements (12, 13, 14, 15) includes a pair of mounting points to which the connecting rod (17, 18) is connected.

13. The vehicle according to claim 1, characterized in that, At least one of the connecting rods (17, 18) is equipped with a tensioner (20).

Images