Bicycle with adjustable front drive

FIELD: transport engineering; bicycles.

SUBSTANCE: invention relates to hand drive of bicycle combined with handlebar. Rocking handlebar 1 made in form of bell crank is coupled through connecting rod 3 with lever 5 provided with pulley or sprocket 6 over which flexible member 7 passes to drive front wheel sprockets 9. Connecting rod 3 can be moved along handlebar 1 and lever 5 to adjust arm and change length. Separate sprocket 13 is installed movably to adjust tension. Diagonal lock 15 holds handlebar 1 in neutral position.

EFFECT: provision of complete utilization of rider's weight for driving.

6 cl, 1 dwg

 

The invention relates to a manual actuator bike by swinging the steering wheel.

In DE 364678 AND discovered the bike with the adjustment of the front wheel, which includes the wheel in the form of two shoulders of the lever with the bracket fixed in the fork of the front wheel, a flexible element for the drive sprocket with built-overrunning clutches, sitting on the hub of the front wheel, while the flexible element covered by a pulley or sprocket with the lever. The disadvantage of this device is a rope drive did not allow for the use of the driving mass of the rider. This device is made for the nearest equivalent.

In DE 383627 AND discovered the bike with the wheel in the form of two shoulders of the lever with the bracket fixed in the fork of the front wheel, with a flexible transmission element with stars with built-overrunning clutches, sitting on the hub of the front wheel, the transmission mechanism is installed is covered by a flexible element pulley or sprocket with the lever, a rod connecting the lever and the wheel. The latch provides the ability to lock the steering wheel in the neutral position. The disadvantage of this device is the lack of adjustment of the shoulder.

The objective of the invention is to increase reliability and performance, for which the drive is made with application of a driving pulley or sprocket with the lever and a connecting rod between the lever and the lever-driving with the option of moving the connecting rod thereon, that, at least, dual adjustable shoulder point.

Thus, the set of essential features of the bike with the adjustment of the front wheel is the presence of steering in the form of two shoulders of the lever with the bracket fixed in the fork of the front wheel, a flexible element for the drive sprocket with built-overrunning clutches, sitting on the hub of the front wheel. While the flexible element covered by a pulley or sprocket with the lever. There is a rod with two crosses, which have the ability to move this lever sprocket and the wheel to adjust the shoulder.

Additionally, a flexible transmission can be mounted rollers to adjust the distance between the branches of the flexible element at the stars with overrunning clutches. In flexible transfer one pulley or sprocket can be mounted slidably on the bracket for fine adjustment of the tension of the flexible element. It is possible to install diagonal lock, providing the opportunity console secure the steering wheel in the neutral position. The rod may be able to adjust its length. The nodes of the junction can articulate the branches of the flexible elements of different types.

The drawing shows a diagram of the drive of the bike.

The implementation of the invention is justified the application of the elements of the long-established industry, as well as tests eksperimentalnog the sample.

Device description in statics.

The bike (see the drawing) includes an actuator of the steering wheel 1 in the form of two shoulders of the lever with the bracket 2 secured to the fork In the front wheel, the connecting rod 3 with the adjustment of its length two giving the possibility to adjust its length arms, crosspieces 4 clamps, lever 5 with a pulley or sprocket 6, the flexible transmission element, for example a chain, with the nodes of the interface, declinaison branches flexible elements of different types, and node length adjustment & Roller 8 regulate the distance between the branches of the flexible element by asterisks 9 with built-in overrunning clutch 10, sitting on the bushing 11 wheel axle 12, a pulley or sprocket (in the case of application circuit) 13, movably installed on the bracket 14, for fine adjustment of the tension of the flexible element, and a diagonal lock the steering wheel 15, the console its hinge.

The device description in the dynamics.

Oscillatory movement of the steering wheel 1 (see drawing) on the bracket 2 leads through the cross-pieces 4 in a reciprocating movement of the connecting rod 3, which transmits this movement to the lever pulley (sprocket) 6 covered by the flexible element 7, encircling the rollers 8 and the driving sprocket 9 with overrunning clutch 10, transmitting the rotation of the sleeve 11 and the wheel, whereby movement of the rod 3 piece 4 wheel 1 and the lever 5 with a double adjustment of the lengths of the shoulders that p is allowed to adjust the torque on the wheel, making it easy to move but rough terrain, and the latch 15 secures the wheel in the neutral position.

1. The bike with the adjustment of the front wheel, which includes the wheel in the form of two shoulders of the lever with the bracket fixed in the fork of the front wheel, a flexible element for the drive sprocket with built-overrunning clutches, sitting on the hub of the front wheel, characterized in that it additionally included the pulley or sprocket which are covered by a flexible element and provided with a lever, there is a rod with two crosses, which have the ability to move the wheel and above the lever pulley or sprocket to adjust the shoulder.

2. The device according to claim 1, characterized in that the flexible transmission mounted rollers to adjust the distance between the branches of the flexible element at the stars with overrunning clutches.

3. The device according to claim 1, characterized in that the flexible transfer of one pulley or sprocket mounted slidably on the bracket for fine adjustment of the tension of the flexible element.

4. The device according to claim 1, characterized in that the set of diagonal latch to enable console secure the steering wheel in the neutral position.

5. The device according to claim 1, characterized in that the rod has the ability to adjust its length.

6. The device according to claim 1, characterized in that the bonds of the s interface sochinyayut branches flexible elements of different types.



 

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EFFECT: improved utilization of rider's weight for driving.

1 dwg

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FIELD: transport engineering; bicycles.

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FIELD: transport engineering.

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