SUBSTANCE: proposed bike comprises front drive multi-speed chain transmission (8, 14) coupled with transfer coupling (9) arranged at top part of fork (10) of front wheel (2). Transfer coupling (9) is coupled, for example gimbal joint (13), with chain transmission (29) to rear wheel (3). One part of gimbal joint (13) fitted on fork (10) is coupled, via chain transmission (21), with transfer coupling (9). The other part of gimbal joint (13) fitted on frame (1) is coupled, via chain transmission (29), with rear wheel (3). Rear drive throw-in mechanism comprises shift lever interacting with drive and idle sprockets fitted on the axle of transfer coupling (9) and coupled, via chain transmission (21), with gimbal mechanism (13).
EFFECT: possibility to throw in rear wheel drive.
5 cl, 3 dwg
The invention relates to wheel-drive bikes, driven by the movement of the legs of the cyclist, and allows different speeds, separately or simultaneously use either front-wheel drive, or front and rear drives.
The availability of all-wheel drive allows you to move the bike as on-road and off-road moderately rugged and mountainous terrain.
Bikes designed for riding along highways and cross-country, is known (see Internet resource. Encyclopedia Krugosvet): in the late 1980s, the lovers of Cycling and Cycling, as well as the residents of the suburban belt, a daily commute into the city for work, great success was to use the bike, which combines the design features of the mountain and touring bike. This bike mixed type has, as a rule, omitted or normal wheel and has up to 21 transmission: three leading and 7 guest stars. Bike mixed type many people consider an ideal bike for General purpose drive both on-road and off-road (on moderately rough terrain), because he, like a mountain bike, good control on wet soil and gravel soil has a low weight and easy on the go while driving on the highway. Sometimes these bikes on the see urban or suburban.
Known road bikes. Versatile road bikes usually have one, three or five speed transmission. Their weight often exceeds 14 kg, long frame with extra long curved feathers on the front forks (to soften the blows of the wheel about the bumps in the road), the wheel raised or normal, durable concerne tires, often provides the flap chain and brake rear wheel hub with a free stroke. The saddle is usually wide, box spring, upholstered with leather or vinyl cover. Road bikes, usually inexpensive, comfortable enough for travel over short distances and do not require special care. They are used in cities as a vehicle for delivery of small quantities of different products (from food to Newspapers) and as a means of transportation. In the first half of the 20th century, road bikes used in hostilities. In many cities and suburban areas of Europe and USA bike is a vehicle for patrol police.
In 1990-ies appeared rental for tourism with a more relaxed posture of the cyclist. The rider sits right on the seat with a back, and his legs stretched out down-forward, to the pedals. Thanks to the rear stop for the lower part of the body of the rider to more effectively use the power of the muscles of the thighs. In addition, at such rental place below the moved the center of gravity.
Increased maneuverability in difficult road conditions, for example in busy urban traffic or on rough terrain, have bikes with detachable frame that allows you to perform a variety of maneuvers and turns.
For example, it is known a vehicle according to the patent of Russian Federation№2049013 , in which the application of torque to the front leading wheel is performed with a reciprocating rotational movement of the steering bracket, made in the form of two shoulders of the lever. The rotation of the two shoulders of the lever by means of two Autonomous transmission having gears and overrunning clutch, is converted into rotation of the front drive wheel in one direction. While impacts on the two shoulders of the lever is simultaneous participation of both hands and both feet of the rider.
The vehicle includes a frame, made in the form of front and rear semiframes, steering bracket in the form of two shoulders of the lever with the lower and upper shoulders, installed on the front end with the possibility of rotation around a transverse horizontal axis, a foot pedal, seat with backrest, placed on the rear section of the rear driven wheels and mounted on the rear end of the front drive wheel and the drive of the front driving wheels. Drive front drive wheel contains the right and left transmission. Turn transport the CSO funds is carried out by application of turning torque with both hands to the steering bracket. With the front and rear semi-frames are rotated relative to each other on the rotary pin on some angle.
The disadvantage of this vehicle is the presence of two rear wheels, which makes the vehicle stable, but doesn't allow to use it in difficult road conditions, for example in busy urban traffic or on rough terrain.
Having shortened the wheelbase (distance between axles) bike also increases its maneuverability.
Famous bikes with shorter base, for example a mini-bike on the patent of Russian Federation№2224679 , containing a frame with a head tube, a fork rear wheels and racks, carriage chain drive with cranks, pedals and a leading asterisk on the front from the head pipe, a front wheel fork and rod, a wheel with a rod, rear wheel with sprocket and freewheel, saddle with backrest fixed with adjustable, folding elements. The frame includes a bracket carriage and the tube connected with the head tube, the carriage is placed over the front wheel, a pipe connected with the fork and rack the rear wheels via a swivel connector seat with backrest on the bracket mounted on the frame by means of the lock rod, seat hinge rack and lock it with a movable stop. With Ergen steering is connected with the rod forks front wheel swivel connector and slide over the strut bearing, and also provided with a tensioning mechanism driven branch of the chain and derailleur for sprocket unit rear wheels.
However, the horizontal frame tube that carries the main load, split reduces the rigidity, and the carriage is moved forward with pedals reduces the rigidity of the structure and causes an increased load on the front wheel, it is not possible to effectively use the famous mini bike in the mountainous and rugged terrain, but only in the comfort of urban conditions on the track with good coverage.
For mountainous and rugged terrain are the most efficient all-wheel bikes.
Sources of patent information all-wheel bikes are known.
They all have a rear wheel with foot pedal-chain drive and front wheel with manual lever chain or chain drive (for example, described in patents: DE 19632519, DE 4132794, FR 2624087, FR 265168, patent for utility model DE 8503367 etc).
Also known bike with two independent actuators on one of the traction chain (ed. St. N 1643306, WM 1/20, published. 23.04.91). The bike has an additional plug fixed in her wheel and swing on the front fork legs front frame of the bike. Additional plug connected with the cable passing through the mechanism with the conveyor chain the rear wheels . Lack of bike is the complexity of the control cycle, the need for greater effort during maneuver (turn), when driving uphill and difficult road conditions.
Famous all-wheel drive Bicycle according to the patent of Russian Federation №2097249 , comprising a frame, saddle, rear wheel with foot pedal-chain drive, front wheel with hand lever-chain drive, the steering fork, a drive mechanism of the front wheel mounted on spaced from the axis of rotation of the steering fork, tilting steering levers. The drive on the front wheel-wheel bike is running by the hands of the cyclist reciprocating movements of the pulling-pushing nature, applied to the handles of two asynchronously tilting steering levers. Lack of bike design is the complexity and difficulty of control of the bike, low maneuverability in difficult road conditions.
The set of essential characteristics specified technical solution according to the patent of Russian Federation №2097249 adopted for the prototype.
The technical result of the claimed invention is to provide a maneuverable wheel bike with a shortened base, suitable for riding on the rise and difficult road conditions (terrain, roads etc) due to the possibility of movement as with the front Pref the house, so with the front and rear actuators simultaneously.
This result is achieved due to the fact that in the inventive four-wheel bike, containing frame, saddle, handlebar, front and rear wheels, the gear, the drive mechanism of the front wheels, the drive mechanism of the rear wheel, front-wheel drive made the pedal chain, with the axis of rotation aligned with the axis of the front wheel, with chain transmission, front wheel associated with the transfer sleeve is installed in the upper part of the fork of the front wheel, while the rear wheel is made of chain, and the relationship between the distribution hub and the mechanism of the rear drive is implemented as a hinge mechanism, with swivel mechanism one part associated with the fork, through chain transfer associated with the transfer sleeve and the other part connected to the frame, through another chain transmission connected with the rear wheel.
When this pedal-chain mechanism includes a multi-speed chain transmission system.
This mechanism include rear drive contains a switch that communicates with the working and idle sprockets mounted on the housing transfer sleeve and tied with a chain with a swivel mechanism.
This hinge mechanism is made in the form of a gimbal mechanism.
This saddle advanced die-casting is but the back and is made with possibility of movement and fixation depending on the growth of the cyclist.
Additional rear-wheel-drive declare bike allows the rider to operate more efficiently, especially when climbing uphill, while the rider rests his hands in the steering wheel, which is impossible when rocking the steering wheel as the prototype.
Declare the bike is made with a shortened base due to the drive on the front wheel, while the rear wheel is obtained a reference. The minimum turning radius of the proposed bike - from 1.3 m
Thanks to front-wheel drive possible landing with a straight back, which gives a good overview and makes it possible to free the posture of the cyclist. The rider sits right on the seat with a back, and his legs stretched out down-forward, to the pedals. Thanks to the rear stop for the lower part of the body of the rider to more effectively use the power of the muscles of the hips, the cyclist can more effectively work the legs in heavy conditions. In addition, at such rental is located below the center of gravity, seat turns out lower than a conventional bike. When you stop the feet touch the ground, allowing to stand, without rising from his seat, and run back up the legs to quickly start and, lifting the bike, turns on the spot.
1 shows a General diagram of the inventive wheel of the Bicycle; figure 2 is a kinematic diagram of the four-wheel bike; figure 3 - photo panopio the aqueous bike.
All-wheel drive Bicycle includes a frame 1, wheels: front 2 with plug 10 and the bracket 12, and the rear 3; 4 wheel with a stick shift and drive (not shown)located on the handlebars of the bike, the saddle 5, which can be done with the back, as well as with the possibility of moving and fixing depending on growth and desired landing cyclist; hinge mechanism 13, is placed in the upper part of the stem 22 of the stem of the Bicycle; a pedal-chain mechanism containing bearings 15 in the lower part of the fork 10, chain drive 8 cranks, the rods 16 with pedals and a leading sprocket 17 and the axis 7 of rotation aligned with the axis of the front wheel 2 wheel drive front wheel drive rear wheels, the mechanism of inclusion of the rear actuator and gear.
The drive mechanism of the front wheel is performed as follows.
The axle of the front wheel 2 is aligned with the axis 7 of rotation of a pedal-chain mechanism 6. On the axis installed the drive sprocket 17 pedal-chain mechanism, integrated chain transmission 8 driven sprocket 18, associated with the transfer sleeve 9 through a ratchet mechanism (not shown).
On the distributing sleeve 9 mounted a drive sprocket 19 front wheel drive, connected with a chain 14 driven sprocket 20 of the actuator of the front wheel.
Handout sleeve 9 to ascertain who and rotatably on the bracket 12 in the upper part of the fork 10 of the front wheel 2 and serves to transfer forces to the front wheel 2 or the two wheels 2 and 3 at the same time.
Pedal-chain mechanism is known, it contains a multi-speed chain transmission system. The transmission system consists of a set of 17 leading and trailing 18 sprocket chain 14, the front and rear switches (not shown), handle switch (manetic) (not shown), the drive cables (not shown), connecting rods 16 with pedals.
Among the leading stars 17 may be equal to at least 2, and preferably 3-m leading sprocket and driven sprocket 18 may be set from 1 to 10 stars, which allows you to receive up to 30 gears. The multi-speed transmission system allows you to find the right gear ratio depending on the conditions of the drive and thus to optimize the efforts of the cyclist, depending on the profile of the road.
Known gear parallelogram type placed in the upper part of the fork.
The drive mechanism of the rear wheels is performed as follows.
Handout sleeve 9 through a chain drive 21 is connected with the hinge mechanism 13 located on the stem 22 of the stem, so that the axis of rotation of the rod coincides with the break point of the hinge. The backbone of rotation of the hinge 13 are four bearing 32, two of which are mounted within a housing located in the stem of the stem, and the other two bearing fixed in the bracket associated with the frame of the bike. Thus, one part 23 charning the mechanism associated with the plug, and the other 24 located on the bracket, with the frame of the bike. Thus the problem of transfer of rotational torque from the transfer case bushing 9, which is located on a pivotable fork 10, to the rear wheel 3 located on the stationary frame 1.
The hinge mechanism may be in the form of a gimbal mechanism.
Working sprocket 25 handout sleeve 9 through a chain drive 21 is connected with the hinge mechanism 13 by means of the sprocket 26, which is located on the axis of the hinge mechanism.
On the axis of the hinge mechanism 13 is fixed to the sprocket 27, connected by a chain 29 is driven sprocket 28 of the rear wheels 3.
The switching mechanism of the actuator includes a switch 30, which interacts with working 25 and parasitic 31 stars a hinge mechanism mounted on the axis of the distributing sleeve 9. Parasitic sprocket 31 is connected with a distributing sleeve 9 and is installed on the bearing (not shown), with the possibility of free rotation.
The bike is driven as follows.
Pedal-chain mechanism 6 drives the drive sprocket 17, through a chain drive 14 rotates the driven sprocket 18 and a distributing sleeve 9 with the attached sprocket 19 of the actuator of the front wheel and the sprocket 25. The sprocket 19 by means of a chain drive 8 rotates the sprocket 20 front is th wheel 2.
Front drive is running constantly.
When not working the rear wheel drive chain drive linkage switched parasitic on the sprocket 31 of the switch 30.
If necessary, the rear wheel is included as follows.
From shifters located on the steering wheel, the switch 30 throws the chain 21 working on the sprocket 25. Working sprocket 25 through a chain drive 21 rotates the portion 23 of the hinge mechanism 13 by means of a sprocket 26 mounted on the axis of the hinge mechanism, resulting in a rotation of the portion 24 of the hinge mechanism and, accordingly, the sprocket 27 mounted on the axis of the hinge mechanism 13. The sprocket 27 rotates the chain drive 29 of the rear wheels 3, which causes the rotation of the driven sprocket 28 of the rear wheels 3.
Switching gears by manycam gear (not shown)mounted on the steering wheel.
All-wheel drive Bicycle equipped with a braking system, for example, the known lever-tick brake.
Claimed all-wheel drive bike allows different speeds to move both on-road and off-road, on moderately rough and mountainous terrain. Prototype four-wheel bike (figure 3), which showed good performance. Tested more than 2000 km, bike overcame mountain rises to 7%, off-road (arable land), at highway speed front-wheel drive 30-35 km/h - all on a standard, narrow tires. The recorded maximum one-day mileage - 231 miles in 9.5 hours.
Claimed all-wheel drive bike has no special nodes, requiring high-tech processing. The presence of the chain of transmission does not require an exact fit different nodes to each other.
The weight of the prototype is 17 kg, weight road bike 18 kg
SOURCES of INFORMATION
1. RF patent №2049013 "vehicle"published 1995.11.27.
2. RF patent №2224679 "Mini-bike Privalova, published 2004.02.27.
3. The copyright certificate. N 1643306 "Bike with two independent actuators on one traction chain", published 23.04.1991.
4. RF patent №2097249 "all-wheel Drive Bicycle", published 1997.11.27 (closest equivalent).
1. All-wheel drive bike, containing frame, saddle, handlebar, front and rear wheels, the gear, the drive mechanism of the front wheels, the drive mechanism of the rear wheels, wherein the front-wheel drive made the pedal chain, with the axis of rotation aligned with the axis of the front wheel, with chain transmission, front wheel associated with the transfer sleeve is installed in the upper part of the fork of the front wheel, while the rear wheel is made of chain, and the relationship between the transfer sleeve and mechanism of the rear drive made in the form of a hinge mechanism, this hinge mechanism, one part associated with the fork, through chain transfer associated with the transfer sleeve and the other part connected to the frame through a different chain transfer associated with the rear wheel.
2. All-wheel drive Bicycle according to claim 1, characterized in that the pedal-chain mechanism includes a multi-speed chain transmission system.
3. All-wheel drive Bicycle according to claim 1, characterized in that the mechanism of activation of the rear drive contains a switch that communicates with the working and idle sprockets mounted on the axis of the distributing sleeve and tied with a chain with a swivel mechanism.
4. All-wheel drive Bicycle according to claim 1, characterized in that the hinge mechanism is made in the form of a gimbal mechanism.
5. All-wheel drive Bicycle according to claim 1, characterized in that the saddle is further provided with a backrest and configured to move and fixation depending on the growth of the cyclist.
FIELD: instrument engineering.
SUBSTANCE: invention refers to handling of bicycle automatic transmission. A transmission comprises double-ended hub-shaft (112). Its ends rest upon a frame. In addition, it contains sun wheel (116) in its centre. Hub body (114) surrounds sun wheel (116) and is provided with first pawl ring (122) and internal toothing (124) made on an inner peripheral face of one edge of the hub body rotatable on hub-shaft (112). First driving unit (130) accommodates driving element (132) that enables rotation of hub body (114), covers the other edge thereof and moves on hub-shaft (112), and driven sprocket (134) used for rotation of driving element (132). Second driving unit (150) includes first gear carrier (152) embedded inside hub body (114) and comprising in one edge array of planetary pinions (156) geared with sun wheel (116) and internal toothing (124) to ensure spinning of the hub body. Second gear carrier (154) goes from the other edge of first gear carrier (152) to driving element (132). Conversion unit (170) comprises second pawl ring (172) between driving element (132) and second gear carrier (154) for rotary effort transfer from rotating driving element (132) to second gear carrier (154) and planetary pinions (156) of first gear carrier (152). Conversion spring (174) provides return of second pawl ring (172) when treadles are not activated, and a bicycle is stopped.
EFFECT: decision aims at simplification of transmission process.
26 cl, 15 dwg
SUBSTANCE: invention relates to bicycle automatic gear shifting control by means of centrifugal force of rotary weights with subsequent throwing in additional force from the running wheel axle to make the rear gear shifting mechanism operate. The said weights act on spring-loaded ring keyed to the wheel axle to move on over the key. The said ring is arranged inside the wheel axle between half-couplings shifting the control cable and can act on the half-couplings. A built-up key includes a rigid part and a flexible part that can bend down to the rigid part level so that to prohibit the spring-loaded ring motion on over the key in interaction with half-couplings. This is made possible by chamfers of the rigid part forming a space sufficient for deformed edges of flexible part to fit into it.
EFFECT: simpler design, reliable automatic gear shifting.
3 cl, 4 dwg
SUBSTANCE: invention relates automatic speed control with the help of centrifugal force of rolling loads with following assisting force connection from spinning wheel plug for operation of back speed switch. Centrifugal loads (12) are made as one pair of elements with ability of sliding along guide pins (13) of front wheel. At that loads (12) interrelate with each other through spinning-applied intermediate element (14), which is made with ability of free slide along the spoke (16), perpendicular spoke (13). Spinning-applied intermediate element (14) is made with ability of interrelation through the spin (15) with element of individual slaving (17), which is made with ability of forced moving along abovementioned spoke (16), perpendicular to guide pin (13) of centrifugal loads (12).
EFFECT: provision of ability of individual slaving of switching torque.
SUBSTANCE: invention relates to control of automatic gear shifting of the bike with the help of centrifugal force of rotating loads with the following connection of add-on effort from rotating wheel plug from rare gear shifting actuation. Buckle plate (6) of stars is spaced concerning centrifugal loads on different wheel plugs. Cable (7) of rare gear shift control (3) passes through motionless axle (8) of plug attachment of front wheel and along (1) the bicycle frame. At that half coupling, passing add-on effort from the plug of rotating wheel directly connected with cable (7) of gear shift (3). Technical decision is directed on removal of mutual gage restriction of stars and loads, which provides bigger motion of centrifugal loads and greater number of stars in buckle plate.
EFFECT: simplification of construction, widening of possible values of transmission ration in chain gear, gain in sensitivity to speed changing.
FIELD: transport engineering: bicycles.
SUBSTANCE: invention relates to bicycle speed-change automatic control by action of centrifugal force of rotating flyweights with subsequent addition of auxiliary force of hub of rotating rear wheel to operate rear change-speed control. Centrifugal flyweights 7 are connected by flexible tie with spring-loaded control member 6 installed inside rear wheel hub. Said control member 6 can rotate together with rear wheel hub and, at change of centrifugal force of flyweights, it can engage with fine-pitch clutch member 6 or with reverse clutch member 8. When control member 6 engages with threaded clutch member 9, travel of clutch member along fine-pitch thread is provided for engagement with large pitch nut 10 speed change control cable in one direction and disengagement of threaded clutch member 9 with control member 6. When control member 6 engages with reverse clutch member 8 change over of speeds is other direction is provided through threaded clutch member 9 and disengagement of reverse clutch member 8 with control member 6 is done. Control member 6 can axially travel relative to limiting ring 12 within clearance between thrust rings 15, limiting ring 12 and turn thrust ring 15 being fixed in rear wheel hub. Spring-loaded stops 13 are arranged in pairs symmetrically relative to limiting ring 12. Extreme stops are limited by thrust rings 15 relative to limiting ring 12. Thickness of each of spring-loaded stops 13 corresponds to axial displacement of control member 6 sufficient for engagement of other gear. Control member 6 can act by its projection 11 onto some spring-loaded stops 13 to shift them through some angle to thrust its projection 11 in limiting ring 12, axial displacement of control member 6 being limited by other spring-loaded stops 13.
EFFECT: provision of definite and reliable operation of mechanism at strict sequence of speed changing.
FIELD: transport engineering; bicycles.
SUBSTANCE: invention relates to change-speed hand-operated levers. Change-speed handle made in form of operating member 130 has surface 132 to take in operating force from rider's finger being tilted relative to plane parallel to direction of travel of operating member 130.
EFFECT: provision of changing of speed even at sliding motion of rider finger, without requirement of correct position of rider's finger in direction square to handle.
10 cl, 7 dwg
FIELD: transport engineering; bicycles.
SUBSTANCE: to prevent frequent changes of gears, part of transmission gear ratios is omitted as follows: set of gears is provided, each set containing less gears than preceding one. When rider selects required set, controller provides change of gears within selected set of gears. Rider can select other sets of gears by stepping up or stepping down. Controller provides cruising at which possibility of undesirable gear change is reduced. For sharp deceleration and subsequent renewal of motion, "missing" conditions are provided for additional reduction of number of accessible gears.
EFFECT: reduced number of gear changes, possibility of adaptation of transmission to specific riding conditions.
46 cl, 4 tbl, 5 dwg
FIELD: transport engineering; bicycles.
SUBSTANCE: invention relates to device for automatic speed changing of bicycle depending on tension of chain. One end of lever 6 is hinge-connected with bicycle frame and is provided with lock 8. Other free end of lever 6 is pressed to chain 11 by spring 10. Tension of chain 11 is changed at change of speed of rotation of pedals which provides lifting or lowering of lever 6 and also tie-rod 5 coupled with cable 3 of standard derailleur gear. With intermediate gear engaged, lock 8 provides position of lever corresponding to definite driven sprocket 2.
EFFECT: simplified automatic derailleur gear.
FIELD: transport engineering; bicycles.
SUBSTANCE: invention relates to front speed changer operated by auxiliary cam. Speed change cam 304 can be connected with rotating pedal shaft by means of clutch member 324 by pulling out control cable 460 laid from speed changer handle on handlebar. With cam 304 rotated, tracer in form of lever 312 pulls out drive cable 340 coupled drive lever used to shift guide of chain. At further rotation of cam 304, release member disconnects clutch member 324 of cam from pedal shaft.
EFFECT: provision of connection and disconnection of cam from pedal shaft so that rotation of pedal shaft can be used for contributing to speed changing.
37 cl, 23 dwg
FIELD: transport engineering: bicycles.
SUBSTANCE: invention relates to electric drives of bicycle speed change control devices. Connecting member 150 is installed for rotation by electric motor and it provides articulated coupling of member 108, 130 with base member 44 or movable member 158. parts 150A, 150B of connecting member 150 pass through opposite holes in case 56 of electric motor, being arranged in opposite holes 116, 154 in coupling member 108, 130. drive member 204 can be installed for rotation together with connecting member 150, being connected with rotation energy accumulator 218 of connecting member 150. Clutch can be installed in line of transmission of force between motor and connecting member 150. motor can be arranged in coupling member 94, 108, 130 for rotating connecting member 150 through worm wheel or bevel gear. Sprocket rotation check sensor can be secured to base member 44. mechanism to determine position of movable member 158 relative to base member 44 can be connected through connecting member 150.
EFFECT: compact design, resistance to contamination.
24 cl, 13 dwg
FIELD: cargo velomobiles.
SUBSTANCE: proposed four-wheel velomobile has frame (1) with treadle drive (5) made in form of angle framework whose height does exceed wheel diameter; cargo compartments, driver's seat and mounting seat for auxiliary engine (2) are formed by means of longitudinal and transversal angle-pieces; brackets for spring-loaded wheels are mounted on the outside. Kinematic joints of handle-bar drive, steering linkage and rear axle suspension are made in form of forks, inserts with perpendicular holes, axles and rods ensuring compact joint of movable perpendicular rotary and screw pairs. Auxiliary clutch for engagement of auxiliary engine is made in form of bush and holder; holder has recesses and bush is provided with three pairs swivel spring-loaded pawls inclined to opposite sides; drive for engagement of bush and holder is made in form of taper bush mounted coaxially in bush and in holder, as well as balls radially movable relative to bush for action on pawls.
EFFECT: light weight of cargo-hoisting frame.
FIELD: transport engineering; muscular drives.
SUBSTANCE: in transport vehicle, for instance, biocycle or boat, provision is made for measuring frequency of rotation of pedal and torque developed by man for power meter. Control system is functionally coupled with device for changing motor power and it changes motor power from zero to preset maximum vale at changing of power developed by man in range from nonzero minimum value to maximum value. Man can manually set limits of power range developed by man.
EFFECT: provision of operation under any conditions of movement at comfort load range.
FIELD: transport engineering.
SUBSTANCE: invention relates to cars with transmission and friction roller engaging with periphery of driving wheel. Drive of driving wheel 2 is either hand and/or mechanical, being secured on load bearing frame by lever. Guide wheel 13 is used for hand drive with outer surface in form of torus and made of friction material, and for mechanical drive, in form of profiled roller 14 with outer surface made of friction material. Driving wheel 2 is provided with rim 12 of drive which is made for hand drive in form of ring with concave part, and for mechanical drive, outer surface of driving wheel 2 is used as rim. Load-bearing frame 16 secured on base 5 is provided with bent upwards posts 17 made of section material. Lever arranged on one of posts 17 is secured from side of driving wheel 2 to thrust against section web of post 17, both when guide wheel 13 of guide roller 14 is released from drive rim and pressed to drive rim. Steering wheel 7 is fitted on posts 17 of load-bearing frame 16 for turning around vertical axle, being furnished with control arm arranged horizontally.
EFFECT: reduced force required for rolling the car.
4 cl, 5 dwg
FIELD: transport engineering.
SUBSTANCE: invention relates to foot drive of electric transmission. Proposed small-size vehicle for individual use has base 1 with two driving wheels 3 connected through belts 29 of variable-speed drive with two electric motors 27 supplied by battery 8 and/or generators 11 with possibility of recuperation. Base 1 is hinge-connected with one- or two-axle bogie 4 with two generators 11. Generator armatures are rotated by pedals 14 provided with spiral rods 17 with pull-back springs 17 or equipped with levers and gears for rotating the armature.
EFFECT: increased distance covered without charging.
12 cl, 5 dwg
FIELD: transport engineering; freight tricycles.
SUBSTANCE: invention relates to folding freight cycles designed for riding at reclining and with drive to front wheel. Transmission of proposed cycle consists of two strands of chain and/or belt drives interconnected by propeller shaft 16 or flexible shaft. Center 17 of cross of propeller shaft 16 is located on turning axle of front wheel fork 3 which is made in form of turned-over Y letter. Carrying frame consists of beam 1 and container interconnected by detachable joint. Cover of container is made in form of folding chair. Chain of first strand of drive is placed inside box beam 1. Second strand of drive is installed on fork 3 and it engages drive sprocket 12 in aperture 24 of vertical section of fork 3.
EFFECT: reduced overall dimensions of transmission and load on fork.
9 cl, 11 dwg