The drive to mechanical and muscular vehicles with automatic changes of gear ratio

 

The invention relates to a drive with elastic elements. Traction force from the levers 3, 4 are transmitted to the reel carriage wheels by means of flexible rods 11, 12 and elastic elements 13, 14. With increasing resistance to movement of the elastic elements are stretched and the rotation angle of the drum is reduced. After passage of the lever 4 front dead point of the elastic element 14 is capable to transmit thrust on the drum 10 due to the accumulated energy. Associated with the axis of the drum 10 spiral spring returns the drum 10 to the original position. The location of one part 18 of the lever with a pedal 5 at an angle to the portion 17 connected with the shaft 2, contributes to the effectiveness of the effort. The proposed solution is aimed at changing the gear ratio of the drive depending on the resistance movement. 3 C.p. f-crystals, 5 Il.

The invention relates to the field of transportation, to a device for the actuation of wheeled vehicles.

Known technical solution muscular drive containing a carrier frame mounted on the frame axis with two actuating levers with pedals attached to the chassis through the axis of the carriage drive wheel having two overrunning known technical solution is low reliability, significant weight due to the presence of open gears and independence of movement speed from the efforts of torque (SU 1018872, G 02 M 1/04, 1983).

The closest technical solution to the stated is a muscular drive of a vehicle, containing a carrier frame mounted on the frame shaft with two actuating levers with pedals, mounted on the carrier frame by means of axis carriage drive wheel having two overrunning clutches with drums, kinematically connected flexible rods with actuating levers, and associated with flexible rods provideproperty elements (SU 1232556, 62 M 1/02, 1986).

The disadvantage of the prototype is the independence of the speed of the drive wheel from the efforts of torque on the drive.

Task patentable invention is to provide mechanism for automatically and smoothly changing the gear ratio depending on the load on the slave link.

This task in particular is solved due to the fact that the drive of the vehicle, containing a carrier frame mounted on the frame shaft with two actuating levers with pedals, mounted on the carrier frame by means of axis carriage drive wheel with two overrunning m is a very useful interaction with providersmichelin elements, the kinematic connection is configured to transfer tractive effort through provideproperty elements.

And also due to the fact that the flexible rod connected to actuating levers providersmichelin elements.

And also due to the fact that the actuator is equipped with a spiral spring, one end of which is connected with the axle of the carriage drive wheel, and the other with drums overrunning.

And also due to the fact that drivers are made in the form of two rigidly connected parts, and the part that is associated with the pedal is at an angle to the part associated with the shaft.

In Fig.1 schematically shows a General view of the muscle actuator of Fig.2 schematically shows a view of A; in Fig.3 - section b-B in the form of A; in Fig.4 - section b-b In the form of A; in Fig.5 - section G-G in the form of A.

Muscle actuator has a base frame 1, mounted on the frame shaft 2 with two actuating levers 3 and 4, equipped with pedals 5, arranged at an angle to the drive levers 3 and 4. On the support frame 1 through the axis 6 is fixed to the carriage 7 drive wheel (not shown) with two overrunning clutches 8, drums 9 and 10 which are kinematically connected flexible rods 11 and 12 with the actuating levers 3 and 4 with the possibility of transmission of tractive effort through provideproperty the element axis 6, and the other respectively on the reels 9 and 10 overrunning 8.

The drive levers 3 and 4 are made in the form of two rigidly connected parts 17 and 18, one of which is associated with the pedal 5, is located at an angle to the portion 17 connected with the shaft 2.

Muscle actuator operates as follows.

The drive levers 3 and 4 are driven by the impact of the pedal 5. The drive lever 4 through provideproperty element 14 and the flexible rod 12 results in rotational movement of the drum 10 and the carriage 7 through the overrunning clutch 8, After passing the driving lever 4 front dead point of the drum 10 rotates in the opposite direction and returns to its original position under the influence of the coil spring 16.

With increasing load (resistance) on the carriage 7 provideproperty element 14 is stretched and the angle of rotation of the drum 10 is reduced. After passing the driving lever 4 front dead point of the stretched elastic element 14 continues to transmit the traction drive in the carriage driving wheel.

After returning providermessage element 14 in the initial state, the drum 10 under the influence of the coil spring 16 returns to its original position. A similar cycle of operation of elements of p is to be placed.

The uneven progress of the pedal 5 is partially compensated providersmichelin elements 13 and 14 and partially free lift of the carriage 7 relative to the drum 9 and 10 through the overrunning clutch 8.

The location of part of the drive lever with a pedal 5 at an angle to the part associated with the shaft 2, promotes more effective application of effort.

Thus, with increase in the load on the driving wheel is reduced traveled path for one full turn of the lever, that is, the change gear ratio.

Claims

1. The drive to mechanical and muscular vehicles containing a carrier frame mounted on the frame shaft with two actuating levers with pedals, mounted on the carrier frame by means of axis carriage drive wheel with two overrunning clutches, drums which have a kinematic connection of flexible rods with actuating levers, wherein the flexible rod is arranged to transmit tractive effort through provideproperty elements.

2. Drive under item 1, wherein the flexible rod is connected with the actuating levers providersmichelin elements.

3. Drive under item 1 or 2, characterized by tamirabarani overrunning.

4. Drive through one of the PP.1, 2 and 3, characterized in that the drive levers are made in the form of two rigidly connected parts, and the part that is associated with the pedal is at an angle to the part associated with the shaft.

 

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