Recumbent bicycle

FIELD: transport.

SUBSTANCE: invention relates to recumbent bicycle. This bicycle comprises frame with seat provided with backrest at rear wheel and front pivot drive wheel, drive wheel fork being fitted in the frame bearings and provided with handle bar. Said frame is provided with extensions on sides of front pivot wheel, shaft running in bearings of the latter and provided with con rods, pedals and drive sprocket. This shaft extends through bore in drive wheel hub. Horizontal countershaft with sprockets on ends is fitted on the frame, nearby said handle bar. Drive sprocket is engaged by the chain with one of countershaft sprockets while countershaft other sprocket is engaged via chain with front wheel hub sprocket. Countershaft is composed of planetary bush with flange for sprocket to be secured thereto to turn about axle parallel with handle bar pivot axis. Turn of planetary bush on axle parallel with the fork pivot pin is engaged with handle bar lever with pin and with lever with fork surrounding said pin. Planetary bush turn angle equals half the turn angle of front wheel fork turn.

EFFECT: lower handle bar control force.

3 dwg

 

The invention relates to vehicle with muscle drive, namely to the bike recumbents with landing support on the backrest.

Known Bicycle comprising a frame mounted on the rear drive wheel and front swivel wheel the hub of which is provided with a bearing mounted on the axis with a through hole, which is fixed in the rotary plug, the axis of which is fixed in bearings of the frame and provided with a wheel at the end. Thus to the frame in bearings attached to the shaft with cranks and pedals on the ends so that the shaft passes through the hole of the axle to move in it when turning the steering wheel. Wherein the shaft is connected the chain and freewheel clutch with the rotation of the rear wheels. The frame consists of a back frame with the seat and the front frame with the wheel connected by a hinge with a horizontal axis and a shock absorber (see the patent of Russia №2391244).

However, this bike chain prevents the rotation of the front wheel, and for tap it sideways and additional efforts are needed on the steering wheel.

The closest is a Bicycle consisting of a frame with a seat with a backrest mounted on the rear wheel and the front swivel wheel drive, a plug which is fixed in bearings of the frame and provided with a wheel, and the frame is equipped with cones on each side of the front swivel wheels, bearings,�which installed shaft with cranks and pedals and a drive sprocket, and the shaft passes through a hole in the sleeve of the front wheels and on the frame near the steering wheel fixed in bearings without the possibility of rotation around the vertical axis of the horizontal intermediate shaft with the sprocket on the end and a change-over mechanism, and a drive sprocket connected by a chain with one of the sprockets of the intermediate shaft, another sprocket which is connected by a chain with the sprocket bushings for front wheels (see application US 2006/0001232).

The disadvantage of this bike are great efforts on the steering wheel due to excessive twisting of the chain at the extreme position of rotation of the wheel. And the chain with this looping left with an asterisk.

The aim of the present invention to reduce the effort of turning the steering wheel. This object is achieved in that the bike recumbent consists of a frame with a seat with a backrest mounted on the rear wheel and the front swivel wheel drive, a plug which is fixed in bearings of the frame and provided with a wheel, and the frame is equipped with cones on each side of the front swivel wheels, bearings which are installed shaft with cranks and pedals and the drive sprocket, and the shaft passes through a hole in the sleeve of the front wheel and on the frame about a horizontal fixed steering intermediate shaft with the sprocket on the end, and the drive sprocket is connected by a chain with one of the sprockets of the intermediate shaft �berating sprocket which is connected by a chain with the sprocket bushings for front wheels.

What is new is that the intermediate shaft is made in the form of planetary bushing to the flange and which is attached a sprocket rotatably around an axis parallel to the axis of rotation of the steering wheel, the planetary rotation of the sleeve on an axis parallel to the axis of rotation of the fork, is associated with the steering lever with the finger and the arm with a fork, covering the finger, and the angle of rotation of hub gears is equal to the half angle of the front wheel fork.

The invention is illustrated by drawings.

Fig.1 - bike recumbent, side view.

Fig.2 - a section a-A, showing the front wheels.

Fig.3 - d View, which shows the relationship paparata steering wheel with hub gears turning levers.

Bike recumbent frame includes a seat 1, mounted on the rear wheel 2 and the front swivel wheel 3. The frame consists of two half-frames 4 and 5, connected by a joint 6 with a horizontal axis. To the frame 4 by a hinge 7 is attached to the absorber 8, the hinge 9 is attached to the frame 5. To the frame 5 in bearings 10 attached to the axis 11 of the rotary plug 12 and is provided with a wheel 13 at the upper end. The plug is provided with feathers 14 and 15, covering the wheel 3.

The stylus 14 by a screw 16 is attached to the nut 17, is wound on the axle 18 with a through hole along it. Another feather 15 of the fork 12 is attached by screws 19 to the eyelet 20 with a hole, thrown to the axis 18. The axle 18 has to�nce a shoulder 21, which is provided with slots. Between the nut 17 and lug 18 are clamped two bearings 22 mounted in the sleeve 23 of the front wheel 3. To the frame 5 on the sides of the front wheel 3 attached to the two stem 24 and 25 whose ends are fixed on the bearings 26 and 27. In the bearings installed in the shaft of the carriage 28, is provided at the ends of the rods 29 and 30 with pedals 31 and 32. The shaft of the carriage 28 is associated with the rotation of the front wheel 3 driven by a sprocket 33 by a chain 34, the planetary sleeve 35 with a sprocket 36 fixed to the flange hub gears screws 35 sprocket 37 and chain 38 and sprocket 39 that is attached to the sleeve 23 of the front wheel 3. Sprocket 39 may be connected with the sleeve 23 of the ratchet 40.

Idle branch circuits 34 and 38 can be tensioned with spring loaded rollers in a known manner.

The connecting rods 29 and 30 are mounted on the shaft 28 by nuts 41 and 42. The seat 1 is provided with a guide 43 is inserted in the clamp 44 attached to the frame 4. The seat 1 is also attached to the yoke 45 mounted on the guide 46 is attached to the frame 4. This allows you to move the seat 1 and to fix the clamps 44 and 45 to the length of the driver's feet.

The axis 47 of the planetary bushing 35 secured in the plug 48 with the axis 49 parallel to the axis 11 of the front wheel fork 3. The axis 49 is mounted in bearings 50 in the housing 51, which is connected to the bracket 52 with the frame 5. Rotation of the plug 48 with the planetary bushing 35 is associated with the turning of the steering� 13 of the lever 53 by a pin 54 on the end meshing with the plug 55 of a lever 56 that is attached to the steering wheel 13. Moreover, the angle of rotation of the planetary sleeve 35 on the axis 49 is equal to the half angle of the steering wheel 13. What is the minimum deformation of the chains 34 and 38 when turning.

Works bike as follows. The driver pedals 31 and 32 and through the connecting rods 29 and 30, the shaft 28, the drive sprocket 33, chain 34, the planetary bushing 35 with the sprockets 36 and 37, the chain 38 and sprocket 39 will cause rotation of the front wheel 3.

Stated the bike allows you to quickly disassemble it into two halves by removing horizontal axis of the hinge and one of the hinge axis of the shock absorber. Chains do not interfere with the rotation of the front wheels.

Bike recumbent consisting of a frame with a seat having a backrest mounted on the rear wheel and the front swivel wheel drive, a plug which is fixed in bearings of the frame and provided with a wheel, and the frame is equipped with cones on each side of the front swivel wheels, bearings which are installed shaft with cranks and pedals and the drive sprocket, and the shaft passes through a hole in the sleeve of the front wheel to the frame about a horizontal fixed steering intermediate shaft with the sprocket on the end, and the drive sprocket is connected by a chain with one of the sprockets of the intermediate shaft another sprocket which is connected by a chain with the sprocket bushings for front wheels, Otley�audica, what intermediate shaft made in the form of planetary bushing to the flange which is attached a sprocket rotatably around an axis parallel to the axis of rotation of the steering wheel, the planetary rotation of the sleeve on an axis parallel to the axis of rotation of the fork, is associated with the steering lever with the finger and the arm with a fork, covering the finger, and the angle of rotation of hub gears is equal to the half angle of the front wheel fork.



 

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4 cl, 4 dwg

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4 cl, 15 dwg

FIELD: transport.

SUBSTANCE: invention relates to bicycles comprising reciprocating foot pedals. Frame 1 comprises guides 2, 3 accommodating carriages 4, 5 with pedals 6, 7 that may be locked, and carriage 22 with seat 23. Rear drive wheels 8, 9 are provided with tapered blocks 14, 18 that have helical flutes with variable radius for cables 20, 21 coupled with carriages 4, 5. Backrest 25 thrusting on roller 26 secured to frame 1 is articulated with seat 24. To shift gears, seat 23 is moved along guides 2, 3. Note here that cables 20, 21, winding or unwinding, move to helical flute sections with required radius and appropriate gear ratio. To allow boat-racing motion to load hand, back and belly muscles, retainer 32 of seat 23 is disengaged from guides 2, 3.

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5 dwg

FIELD: transport.

SUBSTANCE: invention relates to bicycles with drive incorporating reciprocating foot levers. Carriage 1 with seat 4 are arranged on frame 1. Shaft 15 is arranged above handlebar 12 on frame bracket 13 to support pedal levers 16, 17 coupled by chain 24 with cable with drive wheel 8. Levers 16, 17 envelop front wheel 9 to be located at medium part of wheel 9. Each lever 16, 17 is articulated to shaft 15 to decline sideways. Plates 33, 34 are attached to front wheel fork to thrust against levers 16, 17 on turning front wheel 9. Roller 7 is attached to the frame whereon backrest 6 rests articulated to seat 4.

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4 dwg

FIELD: transport.

SUBSTANCE: bicycle relates to bicycles with backrests. Frame 1 gas guide 2 accommodating carriage 3 of seat 6. Bicycle carriage 22 with drive sprocket 23 is secured to carriage 3 by adapter 21. Chain 28 is passed via pulley 29 coupled with the frame by flexible link and roller 30 secured on the frame nearby front wheel 14. Carriage 3 is provided with retainer 34 to interact with one of the holes of guide 2. With seat unlocked, boat racing motion is possible with additional loading of muscles of arms, back and prelum.

EFFECT: possibility to provide streamlined position in pedaling.

5 dwg

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