KR20190138848A - Motorized bicycle transmission - Google Patents

Abstract

The present invention relates to a wheeled vehicle that is powered by a person and additionally has an internal combustion engine. The transmission has two purposes, the first purpose is to transmit power from the engine to the pedal disc element, from which the power is transmitted to the wheels. The second purpose is to transfer power to the engine in the opposite direction to start the engine. The powered bicycle transmission includes a mechanical transmission, which includes a first disk element in the crankshaft of the reduction gear and the pedal. The mechanical transmission comprises two parallel parts. The first part transmits rotation at a first speed ratio only in the direction from the input shaft of the reduction gear to the first disk element. The second part transmits the rotation only at the other speed ratio in the direction from the first disk element to the input shaft of the reduction gear. The simplification of the transmission installation when powering the bicycle is achieved with the present invention. The description of the invention includes a plurality of embodiments.

Description

Motorized bicycle transmission

The claimed technical solution relates to the field of wheeled vehicles which are powered by human muscle forces and optionally have an internal combustion engine. The transmission has two purposes:

Transmitting rotation from the engine to the pedaled disk element driven by the pedal (force is transmitted from the pedal disk element to the wheel),

Transmitting rotation in the opposite direction to start the engine (from the pedal disc element of the pedal or the crankshaft).

Among the power magnetoelectric transmissions, transmissions are known (e.g. European Patent Publication EP0378397B1 IPC B62M 23/02, B62M 7/02, 1995) which comprise a belt drive running from an internal combustion engine to a gearbox. The gearbox is made with a constant gear ratio of 3: 1 to 43: 1 (optimally 15: 1) and includes four shafts with gears and sprockets fixed thereto. Centrifugal clutch is mounted on the input (first) shaft. Rotational transmission from the first axis to the second axis is chain transmission with a ratio of 1.5: 1 to 3.5: 1. The rotational transmission from the second axis to the third axis is a gear transmission with a ratio of 1.5: 1 to 3.5: 1. The sprocket is mounted on the output (fourth) shaft on the overrunning clutch and rotated by a chain drive with a ratio of 2: 1 to 4: 1 that is most closely connected to the frame sprocket on the sprocket block on the crankshaft of the pedal. Is transmitted in the direction of the gearbox only. This sprocket block is mounted to the shaft in the overrunning clutch that transmits rotation from the shaft to the sprocket block. A chain drive of a sprocket block to a wheel with an overrunning clutch on the axis of the wheel with a gear shift mechanism in the region of the wheel axis. The engine is arranged under the frame between the wheels and has a string for manual starting.

The disadvantage of this analogy is that the implementation of a gearbox that transmits rotation only in one direction from the engine, ie from the engine to the wheels, does not start the engine with a pedal.

Also known are power bicycle transmissions, including transmission from an internal combustion engine (trimmer) to the gearbox using a flexible shaft (U.S. Patent NQ US59411332 IPC B62K 11/00, 1999). The gearbox is mounted under the frame, It has a constant gear ratio of 80: 1 and includes several shafts on which gears, sprockets and worm gears are fixed. The sprocket is mounted on the output shaft on the overrunning clutch which transmits rotation only in the direction of the gearbox, which is connected by the chain drive closest to the frame sprocket on the sprocket block on the crankshaft of the pedal. This sprocket block is mounted to the shaft in the overrunning clutch that transmits rotation from the shaft to the sprocket block. The transmission from the sprocket block to the wheel is a chain with an overrunning clutch on the wheel's axis, which has a gear shift mechanism in the region of the wheel axis. The engine is mounted above the rear wheels.

The disadvantage of this analogy is that the implementation of a gearbox that transmits rotation only in one direction from the engine, ie from the engine to the wheels, does not start the engine with a pedal.

Power bicycle transmissions are also known that include transmission from an engine (internal combustion engine or electric engine) via a shaft to a gearbox (Unpublished application publication NQ US20100307851 IPC 862M 23/02, 2010). The gearbox is mounted to the frame, made of a constant gear ratio of 30: 1 to 200: 1, and includes several shafts with eccentric fixed gears and sprockets. The sprocket is mounted to the output shaft, which is connected to the sprocket mounted to the hollow shaft in the overrunning clutch which transmits rotation to the side of the hollow shaft by the chain drive. Instead of the sprocket, a gear may be mounted to the output shaft, which meshes with the gear mounted to the hollow shaft in the overrunning clutch which transmits rotation to the side of the hollow shaft. The block of the sprocket is mounted on the other side of the frame on the hollow shaft. Inside the hollow shaft, a pedal crankshaft is mounted to the freewheel, which transmits rotation from the crankshaft to the hollow shaft. The transmission from the block of the sprocket to the wheel is a chain having an overrunning clutch on the axis of the wheel and has a gear shift mechanism in the region of the wheel axis and in the region of the block of the sprocket in the hollow shaft. The engine is located on the frame above the rear wheels or between the wheels. The engine may be equipped with a centrifugal clutch. The engine is made to produce rated power at speeds of 1000 to 12000 rpm.

 The disadvantage of this analogy is that the implementation of a gearbox that transmits rotation only in one direction from the engine, ie from the engine to the wheels, does not start the engine with a pedal.

Power bicycle transmissions are also known that include gears that transmit rotation from an internal combustion engine to a gearbox (Japanese Patent Publication NQ JP7309282, IPC B62M 23/02, 1995). The gearbox is made in one housing with crankshafts of the engine and pedals. The gearbox has a constant gear ratio of about 34: 1 when transmitting rotation from the engine to the crank of the pedals. The gearbox can also manually transfer rotation from the crank of the pedal to the engine at a gear ratio of about 1: 7. The gearbox includes several shafts on which gears are mounted. The output shaft of the storage box is hollow, and the sprockets of the chain which transmit the rotation to the wheels are firmly fixed thereto. Inside the hollow shaft, the pedal crankshaft is mounted to the freewheel, which transmits rotation from the crankshaft to the hollow shaft. The engine has a centrifugal clutch in the region that transmits rotation from the motor shaft to the gear, which meshes with the gear of the gearbox. In addition, a gear on the motor shaft is mounted to an overrunning clutch that transmits rotation from the gear to the motor shaft. This freewheel is a bypass of the centrifugal clutch for starting the engine.

 The disadvantage of this analogy is that the engine, gearbox and pedal crank block are implemented in a single housing. This complicates the design and also complicates the modernization of ordinary bicycles into powered bicycles. The particular complexity of modernization is mainly related to the need to significantly change the design of the bicycle frame, since the transmission housing must be mounted instead of the part of the frame where the bushing of the pedal crankshaft is located.

A particular analogue of JP7309282 is a combination of key features of the closest analogue of the same purpose for the claimed technical solution. Therefore, it is treated as a prototype.

The technical challenge associated with the claimed technical solution is, on the one hand, to allow the engine to be started by pedaling and on the other hand to create a transmission that is easy to install on the existing bicycle for the modernization of the existing bicycle.

The technical result provided by the technical solution is that the installation of the transmission is simplified while the bicycle is motorized.

The key to the claimed technical solution is that the powered bicycle transmission comprises a mechanical transmission, which includes a gearbox and a first disk element, which disk element can place the pedal on the axis of the crankshaft. have. The mechanical transmission includes a first portion configured to transmit rotation at a first gear ratio only in the direction from the input shaft of the gearbox to the first disk element. The mechanical transmission comprises a second portion parallel to the first portion, wherein the second portion is configured to transmit the rotation at a second gear ratio only in the direction from the first disk element to the input axis of the gear unit. . In this case, the second gear ratio is different from the first gear ratio.

The above point is an essential feature of a set of claimed technical solutions that can achieve the claimed technical results.

In special cases, the technical solution can be carried out as follows.

The first disc element is firmly or movably connected thereto coaxially with the pedal disc element, the pedal disc element being made in the form of a gear or sprocket or pulley or a block of these elements. In this case, the pedal disc element is preferably mounted on the crankshaft of the pedal in the freewheel, which freewheel transmits rotation only in the direction from the crankshaft to the pedal disc element.

It is desirable to provide a mechanical transmission as follows. The input shaft of the gearbox is connected to the intermediate shaft by the reduction gear. In this case, the first part of the mechanical transmission is a second and third disk element attached to the intermediate axis and the output axis of the gearbox, respectively. The second or third disk element is mounted on an axis in the first overrunning clutch that transmits rotation only in the direction from the intermediate axis to the output axis. The second part of the mechanical transmission is the fourth and fifth disk elements mounted on the middle shaft and the output of the gearbox. The fourth or fifth disk element is mounted on an axis in the second overrunning clutch that transmits rotation only in the direction from the output axis to the intermediate axis. The output shaft is provided with a sixth disk element mechanically connected to the first disk element.

The input shaft is connected to the intermediate shaft by a gear transmission, and the second and fourth disk elements are preferably made in the form of a gear firmly mounted to the intermediate shaft. The connection between the sixth and first disk elements is in a chain.

The following options are available:

The second overrunning clutch can be locked to each other; In this case, the first disc element and the pedal disc element are firmly connected;

The sixth disk element can be fixed to the output shaft via a lockable freewheel, the freewheel can be tightly connected in the locked state and can only transmit rotation from the output shaft to the sixth disk element in the unlocked state. In this case, the first disc element and the pedal disc element are firmly connected;

The first disc element can be secured to the pedal disc element via a lockable overrunning clutch, the lockable overrunning clutch can be tightly connected in the locked state and also in the unlocked state only from the first disc element to the pedal disc element. It can transmit the rotation.

In addition to the preferred embodiment of the mechanical transmission, the following implementations are possible:

1) The first part of the mechanical transmission is a second and third disk element mounted respectively to the input and output shafts of the gearbox. The second or third disk element is mounted on an axis in the first overrunning clutch that transmits rotation only in the direction from the input axis to the output axis. The second part of the mechanical transmission is a fourth and fifth disk element mounted respectively to the input and output shafts of the gearbox. The fourth or fifth disk element is mounted on an axis in the second overrunning clutch that transmits rotation only in the direction from the output axis to the input axis. The output shaft is provided with a sixth rotating element mechanically connected to the first disk element.

2) The input shaft of the gearbox is connected to the intermediate shaft by the reduction gear. The first part of the mechanical transmission is a second and third disk element mounted to the intermediate and output shafts of the gearbox, respectively, and between the second disk element and the third disk element a seventh and eighth disk element. Mounted on an additional axis. The second or third or seventh or eighth disc element is mounted on an axis in the first overrunning clutch that transmits rotation only in the direction from the intermediate axis to the output axis. The second part of the mechanical transmission is the fourth and fifth disk elements mounted to the intermediate and output shafts of the gearbox, respectively. The fourth or fifth disk element is mounted on an axis in the second overrunning clutch that transmits rotation only in the direction from the output axis to the counter axis. The output shaft is provided with a sixth rotating element mechanically connected to the first disk element.

3) The first part of the mechanical transmission is a second and third disk element mounted respectively on the input and output shafts of the gearbox, and the seventh and eighth disk elements between the second disk element and the third disk element. Is mounted on an additional axis. The second or third or seventh or eighth disc element is mounted on an axis in the first overrunning clutch that transmits rotation only in the direction from the input axis to the output axis. The second part of the mechanical transmission is a fourth and fifth disk element mounted respectively to the input shaft and the output shaft of the gearbox. The fourth or fifth disk element is mounted on an axis in the second overrunning clutch that transmits rotation only in the direction from the output axis to the input axis. The output shaft is provided with a sixth disk element mechanically connected to the first disk element.

4) The input shaft of the gearbox is connected to the intermediate shaft by the reduction gear. The first part of the mechanical transmission is the second and third disk elements mounted on the intermediate shaft and the output shaft of the gearbox, respectively, and the fifth disk element mounted on the output shaft. The second and third or fifth disk elements are mounted on an axis in the first overrunning clutch that transmits rotation only in the direction from the intermediate axis to the fifth disk element. The second part of the mechanical transmission is a fourth disk element mounted to the intermediate shaft of the gearbox, and the fourth disk element is adapted to the second overrunning clutch that transmits rotation only in the direction from the fourth disk element to the intermediate shaft. Mounted on an axis. The first, fourth and fifth disk elements are covered with a single transmission.

In this case, it is possible to connect the input shaft and the intermediate shaft with a gear driver. The second and third disk elements can be made in the form of gears that are secured to the shaft. The first, fourth and fifth disk elements are covered with a single chain driver.

4.1) the second overrunning clutch is mutually locked, and the first disc element and the pedal disc element are firmly connected;

4.2) The first disc element is fixed to the pedal disc element via a lockable overrunning clutch, which lockable overrunning clutch can be tightly connected in the locked state and also only rotates from the first disc element to the pedal disc element in the unlocked state. Can be passed.

5) The first part of the mechanical transmission is a second and third disk element mounted to the input shaft and the output shaft of the gearbox, respectively, and a fifth disk element mounted to the output shaft. The second or third or fifth disk element is mounted on an axis in the first overrunning clutch that transmits rotation only in the direction from the input axis to the fifth disk element. The second part of the mechanical transmission is a fourth disk element mounted to the input shaft of the gearbox, the fourth disk element mounted to the shaft in the second overrunning clutch, and the second overrunning clutch, in the engaged state, The rotation is transmitted only in the direction from the fourth disk element to the input axis and acts as a bearing in the disengaged state. The first, fourth and fifth disk elements are covered with a single gear.

6) The first part of the mechanical transmission is a second and third disk element mounted on the input shaft and the output shaft of the gearbox, respectively, and a fifth disk element mounted on the output shaft. The second or third or fifth disk element is mounted on an axis in the first overrunning clutch that transmits rotation only in the direction from the input axis to the fifth disk element. The second part of the mechanical transmission is a seventh and eighth disk element mounted to the input and intermediate axes of the gearbox and a fourth disk element fixed to the intermediate axis. The fourth or seventh or eighth disk element is mounted to the shaft in the second overrunning clutch, and the second overrunning clutch, in the engaged state, transmits rotation only in the direction from the fourth disk element to the input shaft and In the disengaged state it acts as a bearing. The first, fourth and fifth disk elements are covered with a single transmission.

The author of the technical solution produced a prototype of an example of this solution, and the prototype test confirmed the achievement of the technical results.

1 shows the structure of the kinematic transmission of Example 1. FIG.
2 shows a kinematic diagram of the pedal crankshaft assembly of Example 3. FIG.
3 shows a kinematic diagram of the delivery of Example 4. FIG.
4 shows a kinematic transmission structure according to example 5. FIG.
5 shows a kinematic diagram of the delivery of Example 6. FIG.
6 shows a kinematic diagram of the delivery of Example 7. FIG.
7 shows a diagram of the chain drive from the gearbox to the pedal disc element according to example 7. FIG.
8 shows a transmission structure according to Example 8. FIG.
9 and 10 show kinematic diagrams of the delivery of Example 9. FIG.
11 shows a kinematic transmission structure according to example 10. FIG.

Various implementations of technical solutions

The powered bicycle transmission comprises a gearbox 1 and an input shaft 2, preferably a rigid or flexible shaft 4, which is connected to the engine 3 (FIG. 1). The output shaft 5 of the gearbox 1 is connected by a chain, belt or gear transmission to the first disk element 6 which is located on the axis of the crankshaft 10 of the pedal. Thus, the first disk element 6 can be a sprocket, pulley or gear.

The mechanical transmission comprising the gearbox 1 and the first disk element 6 is a structural element comprising the core of the claimed technical solution.

The first disc element 6 is connected thereto coaxially with the pedal disc element 15. This connection can be made rigid or flexible. The first disc element 6 and the pedal disc element 15 are connected to each other and mounted to the crankshaft 10 of the pedals in the overrunning clutch 17, the overrunning clutch being the element 15 from the shaft 10. Transmit rotation in the direction of. The pedal disc element 15 is connected to the axis of the wheel 16 by known methods, for example by a chain, cardan or belt drive.

The mechanical transmission comprising the gearbox 1 and the first disk element 6 comprises first and second parts parallel to each other.

The first part is configured to transmit the rotation only at the first gear ratio in the direction from the input shaft 2 of the gearbox 1 to the first disk element 6. The first gear ratio characterizes the transmission of rotational motion from the engine 3 to the axis of the wheels 16. In FIG. 1 of the preferred embodiment of the power bicycle transmission, which will be described later in Example 1, the first part is represented by disk elements 7, 8 and clutch 11.

The second part can transmit the rotation only at the second gear ratio in the direction from the first disk element 6 to the input shaft 2 of the gearbox 1. The second gear ratio characterizes the transmission of rotational motion from the crankshaft of the pedal 10 to the engine 3. In FIG. 1 of the transmission, the second part is represented by clutch 14 and disk elements 12, 13.

The second gear ratio is different from the first gear ratio so that the pedal can be used to start the engine.

In the case of a chain drive between the pedal disc element 15 and the axis of the wheel 16, the pedal disc element 15 is a sprocket or a block of sprockets. In the case of a cardan transmission, the pedal disc element 15 is a gear. In the case of a belt drive, the pedal disc element 15 is a pulley. It is known to adjust the gear ratio of these gears for bicycle solutions. In the case of a chain drive, for example, the adjustment of the gear ratio can be carried out with a switch fixed to the axis of the wheel, which guides the chain to one sprocket in the sprocket block 19 of the wheel. Another switch is mounted to the frame and directs the movement of the chain to one sprocket of the pedal sprocket block 15.

The engine 3 is made in the form of a hybrid engine comprising a two or four-stroke piston or a rotary piston internal combustion engine or an internal combustion engine. The engine may have a centrifugal automatic clutch 22 and an overrunning clutch 18 that transmits rotation only in the direction from the shaft 4 to the engine 3. The freewheel 18 is designed to bypass the clutch 22 at the start of the engine.

The shaft 4 is preferably located in a protective tube (not shown). The protective tube is also preferably a carrier for mounting the engine 3. The protective tube is securely fixed to the frame (in the area of the saddle post) and the gear housing. By using the shaft 4 in the hollow tube, dimensions and noise can be reduced and increased to protect against dirt in the transmission of the rotating unit from the engine 3 to the gearbox 1 and vice versa. .

The engine 3 is to be arranged above the rear wheels behind the saddle. In this case, the engine can have a relatively arbitrary size and power. For example, a well-known portable brush cutter (trimer) engine can be used as the engine 3, in which a gas tank, a muffler, a forced cooling unit and in fact an engine are arranged in a single unit. The engine 3 is in this case quick detachable and is attached to the protective pipe with one or two bolts. In this case, the bicycle can be used with the engine removed and can only be moved by pedaling the rider. If the engine is placed on top of the wheels, it can overcome a deeper ford.

It is also possible to arrange the engine 3 between the wheels on the frame (upper or under the frame) and in front of the steering wheel bushings.

Engine control section:

A handle of an engine speed regulator having a cable driver;

-Electric engine stop button.

These are located on the handlebars of the bike when using the transmission.

The gear ratio (first gear ratio) of the transmission in the direction from the engine 3 to the first disk element 6 is equal to the first disk at engine speed 3 which gives the rated power (usually 3000 to 10000 rpm). The element 6 is selected to make 20 to 60 revolutions, which is approximately equal to the revolutions of the crankshaft of the pedal 10 while a person is typically riding a bicycle.

The gear ratio (second gear ratio) of the transmission in the direction from the first disk element 6 to the engine 3 is selected such that the engine 3 makes 10 to 30 revolutions with respect to one rotation of the element 6. . Such a high value second gear ratio (1:30-1:10) compared to the first gear ratio (1: 3000-1 1000) allows the engine 3 to be driven by the rider when he or she pedals. Due to the creation of physical conditions and comfortable conditions for starting.

Case study

Example 1

A preferred embodiment is the following powered bicycle transmission.

Inside the gearbox 1, the input shaft 2 is connected to the intermediate shaft 9 by a reduction gear.

The first and second parts of the mechanical transmission are located between the intermediate shaft 9 and the output shaft 5.

The first part of the mechanical transmission comprises a second disk element 7 and a third disk element 8 which are mounted on the intermediate shaft 9 and the output shaft 5, respectively. The second disc element 7 or the third disc element 8 is mounted to the first overrunning clutch 11 in its axis, which clutch only in the direction from the intermediate axis 9 to the output axis 5. Convey rotation. In the embodiment of FIG. 1, the third disk element 8 is mounted on the first overrunning clutch 11 and the second disk element 7 is firmly fixed to the countershaft 9.

The second part of the mechanical transmission comprises a fourth disk element 12 and a fifth disk element 13 mounted on the intermediate shaft 9 and the output shaft 5, respectively. The fourth disk element 12 or the fifth disk element 13 is mounted to the second overrunning clutch 14 in its axis, which clutch only in the direction from the output shaft 5 to the intermediate shaft 9. Convey rotation. In the embodiment of FIG. 1, the fifth disk element 13 is mounted to the second overrunning clutch 14 and the fourth disk element 12 is firmly fixed to the countershaft 9.

For the compactness of the gearbox 1, the second disk element 7, the third disk element 8, the fourth disk element 12 and the fifth disk element 13 are made in the form of a gear. In other cases, these disk elements can be made in the form of sprockets or pulleys.

The second overrunning clutch 14 is connected (controllable) so that the bicycle with the idle engine can be used comfortably. In the unconnected state, the clutch 14 functions as a bearing and in the engaged state as a freewheel. In this case, the corresponding control element of the clutch 14 is located on the bicycle handlebar and is a return lever. Pressing and holding the lever engages the coupling 14 and allows the engine to start with a pedal. When the lever is released, the clutch 14 is unlocked.

The gearbox housing is preferably made of aluminum alloy and partly filled with oil to lubricate the structural elements located therein and also have an oil seal at the input shaft 2 and the output shaft 5. This reduces noise, extends life and eliminates maintenance on the gearbox.

Outside the gearbox 1, a sixth disk element 25 is mounted to its output shaft 5, which is connected to the first disk element 6 by a chain drive. It is also possible to use belts, gears or cardan transmissions.

The rotational transmission in Example 1 for the implementation of the transmission is as follows:

A bevel gear having a gear ratio of 4.1: 1 to 4.5: 1 from the input shaft 2 of the gearbox 1 to the intermediate shaft 9;

From the second disk element 7 to the third disk element 8-a gear having a gear ratio of 7: 1;

From the fifth disk element 13 to the fourth disk element 12-a gear having a gear ratio of 1: 1;

From the output shaft 5 to the first disk element 6 by a chain drive with a gear ratio of 3.2: 1 to 4.6: 1. This chain drive may be provided with a tension giver.

The first disk element 6 and the pedal disk element 15 are tightly connected and represent a single block of sprockets. The first disc element 6 is arranged closer to the bicycle frame.

The transmission can be mounted in most bicycle designs, including bicycles with spring-loaded suspension on all wheels.

With the twist line shown in Example 1, the powered bicycle can be used in 10 modes.

1) Move away only by the strength of the rider's muscles. In this mode the engine is off or idle;

2) starting with the power of the rider's muscles during engine starting;

3) starting only with the engine;

4) moving away from the combined action of the power of the engine and the muscles of the rider;

5) Move only by the muscles of the rider. In this mode the engine is off or idle;

6) moving to the muscle power of the rider and the simultaneous starting of the engine;

7) moving by engine;

8) moving with the combined action of the power of the engine and the muscles of the rider;

9) advancing to inertia due to road inclination or prior acceleration in other modes without the influence of the rider or engine;

10) Lift the drive wheels to start the engine on site with a pedal (the rider is standing on the ground next to the bike).

Example 2

Similar to Example 1, but different from Example 1 in connection of output shaft 5 with second overrunning clutch 14 and sixth disk element 25.

The second overrunning clutch 14 is made out of control. Instead, the sixth disc element 25 is mounted to the output shaft 5 in the lockable overrunning clutch so that the bicycle with the idle engine can be used comfortably. In the locked state, this coupling acts as a rigid connection and in the unlocked state it acts as an overrunning clutch, which transmits rotation only in the direction from the output shaft 5 to the sixth disk element 25. do. At the same time, the corresponding control element of the lockable overrunning clutch is located on the bicycle handlebar and is a return lever. Press and hold the lever to lock the clutch and start the engine with the pedals. When the lever is released, the clutch is unlocked.

In a special case, the blocked overrunning clutch may consist of a pair of overrunning clutches. One of these couplings is a freewheel, which transmits only rotation in the direction from the output shaft 5 to the sixth disk element 25. The other coupling is made in the form of a clutch (controlled) overrunning clutch, which acts as a bearing in the unlocked state and, in the engaged state, in the direction from the sixth disc element 25 to the output shaft 5. Only functions as an overrunning clutch to transmit rotation.

Example 3

Similar to Example 1, but different from Example 1 in connection of the second overrunning clutch 14 and the first disk element 6 and the pedal disk element 15.

The second overrunning clutch 14 is made out of control. Instead, the first disc element 6 is secured to the pedal disc element 15 via a lockable overrunning clutch 20 so that the bicycle with the idle engine can be used comfortably (FIG. 2). In the locked state of the clutch 20 this clutch acts as a rigid connection and in the unlocked state it acts as an overrunning clutch, which overrun direction from the first disc element 6 to the pedal disc element 15. Only pass the rotation. In this case, the corresponding control element of the clutch 20 is located on the handlebar of the bicycle and is a return lever. By pressing and holding the lever, the coupling 20 can be locked and the engine can be started with a pedal. When the lever is released, the clutch 20 is unlocked.

In special cases, the blocked overrunning clutch 20 may consist of a pair of overrunning clutches. One of these couplings is a freewheel, which transmits rotation only in the direction from the first disc element 6 to the pedal disc element 15. The other coupling is made in the form of a clutch (controlled) overrunning clutch, which acts as a bearing in the unlocked state and, in the engaged state, the direction from the pedal disc element 15 to the first disc element 6. Acts as a freewheel to transmit rotation only.

Example 4

Inside the gearbox 1, the first and second parts of the mechanical transmission are located between the input shaft 2 and the output shaft 5 (FIG. 3).

The first part of the mechanical transmission comprises a second disk element 7 and a third disk element 8 mounted on the input shaft 2 and the output shaft 5, respectively. The second disk element 7 or the third disk element 8 is mounted to the first overrunning clutch 11 in its axis, which clutch only in the direction from the input shaft 2 to the output shaft 5. Convey rotation. In the embodiment of FIG. 3, the third disk element 8 is mounted on the first overrunning clutch 11 and the second disk element 7 is firmly fixed to the input shaft 2.

The second part of the mechanical transmission comprises a fourth disk element 12 and a fifth disk element 13 mounted to the input shaft 2 and the output shaft 5, respectively. The fourth disk element 12 and the fifth disk element 13 are mounted to the second overrunning clutch 14 in its axis, which clutch only in the direction from the output shaft 5 to the input shaft 2. Convey rotation. In the embodiment of FIG. 3, the fourth disk element 12 is mounted to the second overrunning clutch 14, and the fifth disk element 13 is firmly fixed to the output shaft 5.

The second disk element 7, the third disk element 8, the fourth disk element 12 and the fifth disk element 13 are made in the form of a gear.

The output shaft 5 of the gearbox 1 has a sixth disk element 25 which is connected to the first disk element 6 by a chain drive.

The second overrunning clutch 14 is connected (controlled) as described in Example 1. The first disc element 6 and the pedal disc element 15 are tightly connected and represent a single block of sprockets.

Example 5

Inside the gearbox 1, the input shaft 2 is connected to the intermediate shaft 9 by a reduction gear (FIG. 4).

The first and second parts of the mechanical transmission are located between the intermediate shaft 9 and the output shaft 5.

The first part of the mechanical transmission comprises a second disk element 7 and a third disk element 8 mounted on the intermediate shaft 9 and an output shaft 5, respectively, and a seventh mounted on an additional shaft 21. A disk element 26 and an eighth disk element 27. The second disc element 7 or the third disc element 8 or the seventh disc element 26 or the eighth disc element 27 is mounted to the first overrunning clutch 11 in its axis, which clutch The rotation is transmitted only in the direction from the intermediate shaft 9 to the output shaft 5. In the embodiment of FIG. 4, the seventh disc element 26 is mounted to the first overrunning clutch 11. The second disk element 7, the third disk element 8 and the eighth disk element 27 are firmly fixed on their axis. The second disk element 7, the third disk element 8, the seventh disk element 26 and the eighth disk element 27 are made in the form of a gear.

The second part of the mechanical transmission comprises a fourth disk element 12 and a fifth disk element 13 mounted on the intermediate shaft 9 and the output shaft 5, respectively. The fourth disk element 12 or the fifth disk element 13 is mounted to the second overrunning clutch 14 in its axis, which clutch only in the direction from the output shaft 5 to the intermediate shaft 9. To pass the rotation. In the embodiment of FIG. 4, the fifth disk element 13 is mounted to the second overrunning clutch 14, and the fourth disk element 12 is firmly fixed to the countershaft 9. The fourth disk element 12 and the fifth disk element 13 are made in the form of a chain sprocket.

The second overrunning clutch 14 is connected (controlled) as described in Example 1.

The output shaft 5 of the gearbox 1 has a sixth disk element 25 which is connected to the first disk element 6 by a chain drive. The first disc element 6 and the pedal disc element 15 are tightly connected and represent a single block of sprockets.

Example 6

Inside the gearbox 1, the first and second parts of the mechanical transmission are located between the input shaft 2 and the output shaft 5 (FIG. 5).

The first part of the mechanical transmission comprises a second disk element 7 and a third disk element 8 mounted on the input shaft 2 and an output shaft 5 respectively, and a seventh mounted on the additional shaft 21. A disk element 26 and an eighth disk element 27. The second disc element 7 or the third disc element 8 or the seventh disc element 26 or the eighth disc element 27 is mounted to the first overrunning clutch 11 in its axis, which clutch The rotation is transmitted only in the direction from the input shaft 2 to the output shaft 5. In the embodiment of FIG. 5, the third disk element 8 is mounted to the first overrunning clutch 11. The second disk element 7, the seventh disk element 26 and the eighth disk element 27 are firmly fixed to their axis. The second disk element 7 and the seventh disk element 26 are made in the form of a bevel gear. The third disk element 8 and the eighth disk element 27 are made in the form of a cylindrical gear.

The second part of the mechanical transmission comprises a fourth disk element 12 and a fifth disk element 13 mounted to the input shaft 2 and the output shaft 5, respectively. The fourth disk element 12 or the fifth disk element 13 is mounted to the second overrunning clutch 14 in its axis, which clutch only in the direction from the output shaft 5 to the input shaft 2. To pass the rotation. In the embodiment of FIG. 5, the fourth disk element 12 is mounted to the second overrunning clutch 14, and the fifth disk element 13 is firmly fixed to the output shaft 5. The fourth disk element 12 and the fifth disk element 13 are made in the form of a bevel gear.

The output shaft 5 of the gearbox 1 has a sixth disk element 25 which is connected to the first disk element 6 by a chain drive.

The second overrunning clutch 14 is connected (controlled) as described in Example 1. The first disc element 6 and the pedal disc element 15 are tightly connected and represent a single block of sprockets.

Example 7

Inside the gearbox 1, the input shaft 2 is connected to the intermediate shaft 9 by a reduction gear (FIG. 6).

The first and second parts of the mechanical transmission are located between the intermediate shaft 9 and the first disk element 6.

The first part of the mechanical transmission comprises a second disk element 7 and a third disk element 3, which are mounted inside the gearbox 1 and mounted on the intermediate shaft 9 and the output shaft 5, respectively. do. Outside the gearbox 1, the fifth disk element 13 is mounted to the output shaft 5, which is also part of the first part. The fifth disk element 13 engages with the first disk element 6 by chain drive.

The second disc element 7 or the third disc element 8 or the fifth disc element 13 is mounted to the first overrunning clutch 11 in its axis, the clutch being driven from the intermediate shaft 9 to the fifth. Only rotation in the direction to the disk element 13 is transmitted. In the embodiment of FIG. 6, the fifth disk element 13 is mounted to the first overrunning clutch 11, and the second disk element 7 and the third disk element 8 are firmly fixed to its axis.

The second part of the mechanical transmission is mounted on the intermediate shaft 9 in the second overrunning clutch 14, outside the gearbox 1, and the first disk element 6 and the fifth disk element 13. Covered by a single chain drive with The second overrunning clutch 14 transmits rotation only in the direction from the fourth disk element 12 to the countershaft 9.

The second disk element 7 and the third disk element 8 are made in the form of a gear. In other cases, these disk elements may be made in the form of sprockets or pulleys.

The single transmission between the first disk element 6 and the fourth disk element 12 and the fifth disk element 13 may also be made of a belt or gear.

In the transfer of Example 7, the rotation transfer is as follows:

A bevel gear having a gear ratio of about 6: 1 from the input shaft 2 of the gearbox 1 to the intermediate shaft 9;

From the intermediate shaft 9 to the output shaft 5 by a gear transmission with a gear ratio of 7: 1;

From the output shaft 5 to the first disk element 6 by a chain drive having a gear ratio of about 3: 1. This chain drive may be provided with a tension giver.

The fourth disk element 12 and the fifth disk element 13 are the same sprocket.

The second overrunning clutch 14 is connected (controlled) as described in Example 1.

The gearbox 1 is arranged in the frame, so that when the engine 3 is running, the traction from the fifth disk element 13 is transmitted directly to the first disk element 6 by the chain part (Fig. 7). At the same time, during engine start 3, the traction from the first disk element 6 is transmitted directly to the fourth disk element 12. The design shown is optimal for reducing the load on the intermediate elements of the chain drive by covering the first disk element 6 and the fourth disk element 12 and the fifth disk element 13 (sprocket).

The intermediate shaft 9 and the output shaft 5 of the gearbox have an increased length, so that these shafts are located as close as possible to the frame of the bicycle when mounted on the bicycle. In this case, the sprockets 12, 13 are arranged on one side of the frame, and the gears 7, 8 are located on the other side of the frame. The specified solution is for the gear housing 1 to reduce the moment of force exerted by the bicycle frame.

The first disc element 6 and the pedal disc yosho 15 are tightly connected and represent a single block of sprockets. The first disc element 6 is arranged closer to the bicycle frame.

In order to use the transmission with a motor providing a nominal power at 4000 on / min, the transmission is a gear ratio of the rotational speed of the shaft 4 to the rotational speed of the first disk element 6, of about 126: 1. Has a gear ratio. At the same time, to start the engine, the transmission has a gear ratio of about 1:18, which is the gear ratio of the rotation speed of the first disk element 6 to the rotation speed of the shaft 4.

The transmission can be mounted in most bicycle designs, including bicycles with spring-loaded suspension on all wheels.

In another embodiment, the second overrunning clutch 14 and the first disk element 6 can be made as in Example 2.

Example 8

Similar to Example 7, but different from Example 7 in the internal design of the gearbox 1 (FIG. 8).

The rotational transmission in the gearbox is as follows:

A bevel gear with a gear ratio of 4.1: 1 to 4.5: 1 from the input shaft 2 of the gearbox 1 to the additional shaft 21;

By means of a gear transmission with a gear ratio of 2.2: 1 from the additional shaft 21 to the intermediate shaft 9.

From the intermediate shaft 9 to the output shaft 5 by means of a gear transmission with a gear ratio of 6: 1.

From the output shaft 5 to the first disk element 6 by a chain drive with a gear ratio of 2.3: 1. This chain drive may be provided with a tension giver.

Example 9

The first and second parts of the mechanical transmission are located between the input shaft 2 and the first disk element 6 (FIGS. 9, 10).

The first part of the mechanical transmission comprises a second disk element 7 and a third disk element 8 mounted respectively on the input shaft 2 and the output shaft 5 inside the gearbox 1. Outside the gearbox 1, a fifth disk element 13 is mounted to the output shaft 5, which is also part of the first part. The fifth disk element 13 engages with the first disk element 6 in the chain drive.

The second disc element 7 or the third disc element 8 or the fifth disc element 13 is mounted to the first overrunning clutch 11 in its axis, which clutch is fifth from the input shaft 2. The rotation is transmitted only in the direction toward the disk element 13. In the embodiment of FIG. 9, the third disk element 8 is mounted to the first overrunning clutch 11, and the second disk element 7 and the fifth disk element 13 are firmly fixed to its axis.

The second part of the mechanical transmission is a fourth disk element 12 mounted on an input shaft 2 in the second overrunning clutch 14 outside of the gearbox 1, and the first disk element 6. And a single chain drive with a fifth disk element 13. The second overrunning clutch 14 transmits rotation only in the direction from the fourth disk element 12 to the input shaft 2.

The second disk element 7 and the third disk element 8 are made in the form of a gear. In other cases, these disk elements may be made in the form of sprockets or pulleys.

A single transmission between the first disk element 6 and the fourth disk element 12 and the fifth disk element 13 may also be made of a belt or gear.

The fourth disk element 12 and the fifth disk element 13 are the same sprocket.

The second overrunning clutch 14 is connected (controlled) as described in Example 1. The first disc element 6 and the pedal disc element 15 are tightly connected and represent a single block of sprockets.

Example 10

The first and second parts of the mechanical transmission are located between the input shaft 2 and the first disk element 6 (FIG. 11).

The first part of the mechanical transmission comprises a second disk element 7 and a third disk element 8 mounted respectively on the input shaft 2 and the output shaft 5 inside the gearbox 1. The second disk element 7 and the third disk element 8 are made in the form of a bevel gear. Outside the gearbox 1, a fifth disk element 13 is mounted to the output shaft 5, which is also part of the first part. The fifth disk element 13 engages with the first disk element 6 in the chain drive.

The second disc element 7 or the third disc element 8 or the fifth disc element 13 is mounted to the first overrunning clutch 11 in its axis, which clutch is fifth from the input shaft 2. The rotation is transmitted only in the direction toward the disk element 13. In the embodiment of FIG. 11, the third disk element 8 is mounted to the first overrunning clutch 11, and the second disk element 7 and the fifth disk element 13 are fixed securely to their axis.

The second part of the mechanical transmission comprises a seventh disk element 26 and an eighth disk element 27 mounted respectively on the input shaft 2 and the intermediate shaft 9 inside the gearbox 1. The seventh disk element 26 and the eighth disk element 27 are made in the form of a bevel gear. Outside the gearbox 1, the fourth disk element 12 is mounted to the countershaft 9, which is also part of the second part. The fourth disk element 12 is covered by a single chain drive having a first disk element 6 and a fifth disk element 13.

The fourth disk element 12 or the seventh disk element 26 or the eighth disk element 27 is mounted to the second overrunning clutch 14 in its axis, which clutch from the fourth disk element 12. The rotation is transmitted only in the direction to the input shaft (2). In the embodiment of FIG. 11, the second overrunning clutch 14 is mounted to the seventh disk element 26 and the eighth disk element 27, and the fourth disk element 12 is secured to the intermediate shaft 9. Connected

The fourth disk element 12 and the fifth disk element 13 are the same sprocket.

A single transmission between the first disk element 6 and the fourth disk element 12 and the fifth disk element 13 may also be made of a belt or gear.

The second overrunning clutch 14 is connected (controlled) as described in Example 1.

The first disc element 6 and the pedal disc element 15 are tightly connected and represent a single block of sprockets. The first disc element 6 is arranged closer to the bicycle frame.

The implementation of the proposed technical solution is not limited to the above example. Especially,

The axis 4 can be complex and its parts can be positioned at an angle to each other to optimally fill the space;

The connection of the input shaft 2 and the shaft 4 of the gearbox 1 can be provided by known methods, for example couplings;

Rotational transmission from the engine to the gearbox is permissible to provide other known methods, for example chain or belt drives;

An intermediate gearbox can be mounted between the engine 3 and the gearbox 1;

The engine 3 may have an electric or manual starter, variator or gearbox;

-When used on engines of controlled clutches other than automatic clutches, an additional clutch control lever is mounted on the handlebars of the bicycle,

The overrunning coupling may have any known configuration, for example ratchet, ball, roller, spring, screw or wedge;

Between the mentioned disk elements can be equipped with additional gears, in particular gears in the form of shafts and gears mounted thereon with or without couplings.

Description of the transmission

In the initial state, the engine is muffled and the transmission unit does not move.

At the start, the rider rotates the pedal and the pedal drives the crankshaft 10. Through the overrunning clutch 17, the shaft 10 drives the pedal disc element 15, which drives the wheels through a chain or cardan driver.

If the pedal disc element 15 is firmly connected to the first disc element 6, the first disc element is also driven. When the first disc element 6 is connected to the pedal disc element 1b via a lockable overrunning clutch 20 (see example 3), the first disc element 6 is driven by the clutch using an appropriate lever. It will only run if it is blocked by humans. Otherwise, the rotation of the pedal disc element 15 will not be transmitted to the first disc element 6.

The rotation of the first disk element 6 through the second part of the mechanical transmission is transmitted to the input shaft 2 of the gearbox. If there is a mechanical transmission of the controlled clutch on this path, it is properly engaged by the rider using the appropriate lever. Otherwise, rotation of the pedal disc element 15 will not be transmitted to the input shaft 2. In particular, such a controlled clutch can be used in Example 1 (interlocking (controlled) second overrunning clutch 14 (FIG. 1)), Example 2 (locked overrunning clutch on which the sixth disc element 25 is mounted), Example 7 (Interlock (control) second overrunning clutch 14 (FIG. 6)).

Due to the design of the first part of the mechanical transmission, the rotation of the first disc element 6 is not transmitted to the input shaft 2 via this first part.

Rotation from the input shaft 2 is transmitted to the digester 3 via the shaft 4. If the engine is provided with a centrifugal clutch, rotation from the shaft 4 to it is transmitted via the overrunning clutch 18. Rotation of the engine shaft 3 starts the engine in the condition of fuel supply and in the presence of ignition.

After starting the engine 3, the rotation is transmitted via the shaft 4 to the input shaft 2 of the gearbox 1. If the engine 3 has an automatic centrifugal clutch 22, the rotation of the shaft 4 is transmitted only when the engine reaches a predetermined speed of the crankshaft.

The force on the input shaft 2 of the gearbox 1 is transmitted to the first disk element 6 via the first part of the mechanical transmission. Due to the design of the second part of the mechanical transmission, the rotation of the input shaft 2 is not transmitted to the first disk element 6 via this second part.

Rotation from the first disk element 6 is transmitted to and from the pedal disk element 15 and to the wheel therefrom.

Since the pedal disc element 15 is mounted to the freewheel clutch 17, its rotation is not transmitted to the crankshaft 10 and the pedal of the pedal.

Industrial availability

The claimed technical solution is implemented using industrially manufactured devices and materials, can be manufactured by any industrial company, and can be fitted to most well-known bicycle designs, and also with muscle powered wheels It will be widely used for the modernization of vehicles on the run.

Claims (14)

A power bicycle transmission comprising a mechanical transmission, the mechanical transmission comprising a first disk element configured to position a pedal on an axis of a gearbox and a crankshaft, the mechanical transmission rotating the gears at a first gear ratio. A first portion configured to transmit only in a direction from the input axis of the box to the first disk element, wherein the mechanical transmission comprises a second portion parallel to the first portion, the second portion And a second gear ratio configured to transmit rotation only in the direction from the first disk element to the input shaft of the gear unit, wherein the second gear ratio is different from the first gear ratio. The method of claim 1,
The first disc element is firmly or movably connected thereto coaxially with the pedal disc element, the pedal disc element being made in the form of a gear or sprocket or pulley or block of gear or block of sprocket or block of pulley, The disc element is mounted to the crankshaft of the pedal in the freewheel, and the freewheel transmits rotation only in the direction from the crankshaft to the pedal disc element. The method of claim 2,
The input shaft of the gearbox is connected to the intermediate shaft by a reduction gear, and the first portion of the mechanical transmission is a second and third disk element attached to the intermediate shaft and the output shaft of the gearbox, respectively, and the second or third A three disc element is mounted on the shaft in the first overrunning clutch that transmits rotation only in the direction from the intermediate shaft to the output shaft, the second part of the mechanical transmission being on the output of the intermediate shaft of the gearbox. Fourth and fifth disk elements mounted to the fourth or fifth disk elements, the fourth or fifth disk elements mounted on an axis in the second overrunning clutch that transmits rotation only in the direction from the output axis to the intermediate axis, the output axis And a sixth disk element mechanically connected to the first disk element. The method of claim 3, wherein
The input shaft is connected to the intermediate shaft by a gear driver, the second and fourth disk elements are made in the form of a gear firmly mounted to the intermediate shaft, the second overrunning clutch is engaged, and the sixth and Wherein the first disc element is chained and the first disc element and the pedal disc element are firmly connected. The method of claim 3, wherein
The input shaft is connected to the intermediate shaft by a gear, the second and fourth disk elements are made in the form of a gear firmly mounted to the intermediate shaft, and the sixth disk element is output shaft via a lockable overrunning clutch. Fastened to the lockable overrunning clutch, the lockable overrunning clutch can be firmly connected in the locked state and in the unlocked state can only transmit rotation from the output shaft to the sixth disk element, the connection of the sixth disk element to the first disk element A motorized bicycle transmission made of a chain, wherein the first disc element and the pedal disc element are firmly connected. The method of claim 3, wherein
The input shaft is connected to the intermediate shaft by a gear drive, wherein the second and fourth disk elements are made in the form of gears firmly mounted to the intermediate shaft, and the connection of the sixth disk element and the first disk element to the chain And the first disc element is secured to the pedal disc element via a lockable overrunning clutch, the lockable overrunning clutch can be tightly connected in the locked state and in the unlocked state only from the first disc element to the pedal disc element. Power bike transmission that can transmit rotation. The method of claim 2,
The first part of the mechanical transmission is a second and third disk element mounted to the input shaft and the output shaft of the gearbox, respectively, the second or third disk element in a direction from the input shaft to the output shaft. Mounted on an axis in the first overrunning clutch that transmits full rotation, and the second portion of the mechanical transmission is a fourth and fifth disk element mounted respectively on the input and output shafts of the gearbox, The fourth or fifth disk element is mounted on an axis in the second overrunning clutch that transmits rotation only in the direction from the output shaft to the input shaft, the output shaft being mechanically connected to the first disk element. Powered bicycle transmission with 6 rotating elements. The method of claim 2,
The input shaft of the gearbox is connected to the intermediate shaft by a reduction gear, and the first portion of the mechanical transmission is a second and third disk element mounted respectively to the intermediate shaft and the output shaft of the gearbox, wherein the second Between the disk element and the third disk element a seventh and eighth disk element is mounted on an additional axis, the second or third or seventh or eighth disk element only in the direction from the intermediate axis to the output axis. Mounted on an axis in a first overrunning clutch that transmits rotation, wherein the second portion of the mechanical transmission is a fourth and fifth disk element mounted respectively to the intermediate axis and the output axis of the gearbox, The fourth or fifth disk element is mounted on the shaft in the second overrunning clutch that transmits rotation only in the direction from the output shaft to the counter shaft, With the sixth rotating element is mechanically coupled to the first disk element is provided, the power transmission bicycle. The method of claim 2,
The first part of the mechanical transmission is a second and third disk element mounted to the input and output shafts of the gearbox, respectively, and between the second and third disk element a seventh and eighth disk element. Mounted on an additional axis, the second or third or seventh or eighth disk element mounted on an axis in the first overrunning clutch that transmits rotation only in the direction from the input axis to the output axis, The second part of the mechanical transmission is characterized in that the first gears are fourth and fifth disk elements mounted respectively on the input shaft and the output shaft of the gearbox, wherein the fourth or fifth disk elements are output Mounted on a shaft in a second overrunning clutch that transmits rotation only in the direction from the shaft to the input shaft, the output shaft being mechanically connected to the first disk element. A powered bicycle transmission, wherein a sixth disk element is provided. The method of claim 2,
The input shaft of the gearbox is connected to the intermediate shaft by a reduction gear, wherein the first portion of the mechanical transmission is mounted to the intermediate shaft and the output shaft of the gearbox, respectively, and to the output A fifth disk element mounted on the shaft, wherein the second and third or fifth disk elements are mounted on the shaft in the first overrunning clutch that transmits rotation only in the direction from the intermediate shaft to the fifth disk element. And the second part of the mechanical transmission is a fourth disk element mounted to the intermediate axis of the gearbox, the fourth disk element being a second over which transmits rotation only in the direction from the fourth disk element to the intermediate axis. Mounted on an axis in the running clutch, wherein the first, fourth and fifth disc elements are covered with a single transmission. The method of claim 10,
The input shaft is connected to the intermediate shaft by a gear, the second and third disk elements are made in the form of gears fixed firmly to the shaft, and the first, fourth and fifth disk elements are connected to a single chain drive. Covered, the second overrunning clutch is interlocked, and the first disc element and the pedal disc element are firmly connected. The method of claim 10,
The input shaft is connected to the intermediate shaft by a gear, the second and third disk elements are made in the form of gears fixed firmly to the shaft, and the first, fourth and fifth disk elements are in a single chain transmission. Covered, the first disc element is secured to the pedal disc element via a lockable overrunning clutch, the lockable overrunning clutch can be tightly connected in the locked state and also in the unlocked state only from the first disc element to the pedal disc element. Powered bicycle transmission that can transmit rotation. The method of claim 2,
The first portion of the mechanical transmission is a second and third disk element mounted on the input shaft and the output shaft of the gearbox, respectively, and a fifth disk element mounted on the output shaft, and the second or third The third or fifth disk element is mounted on the shaft in the first overrunning clutch that transmits rotation only in the direction from the input shaft to the fifth disk element, and the second portion of the mechanical transmission is the input of the gearbox. A fourth disk element mounted to the shaft, the fourth disk element mounted to the shaft on the second overrunning clutch, and the second overrunning clutch, in the engaged state, only in the direction from the fourth disk element to the input shaft A powered bicycle transformer, which transmits rotation and acts as a bearing in the disengaged state, wherein the first, fourth and fifth disk elements are covered with a single transmission. Mission. The method of claim 2,
The first portion of the mechanical transmission is a second and third disk element mounted on the input shaft and the output shaft of the gearbox, respectively, and a fifth disk element mounted on the output shaft, and the second or third The third or fifth disk element is mounted on the shaft in the first overrunning clutch that transmits rotation only in the direction from the input shaft to the fifth disk element, and the second portion of the mechanical transmission is the input of the gearbox. A seventh and eighth disk element mounted to the shaft and the intermediate shaft, and a fourth disk element fixed to the intermediate shaft, the fourth or seventh or eighth disk element being the shaft in the second overrunning clutch. And the second overrunning clutch, in the engaged state, transmits rotation only in the direction from the fourth disk element to the input shaft and in the disengaged state It acts as a, and the first, fourth and fifth disc element is covered, the bicycle transmission power of a single actuator.

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