Two-wheel transport facility with shock-mounted suspension

FIELD: transport.

SUBSTANCE: pendulum fork 8 of rear wheel 7 is coupled with frame 1 by hinge 18 and spring shock-absorber 9. Vertical force of arms is directly transmitted to pendulum fork 8 bypassing shock-absorbed 9 due to linkage of vertical rod 10 with fork 8 and its arrangement under seat. Note here that handle bar 6 is arranged on vertical rod 10 and coupled with front fork 5 by tie rods 11. In compliance with another version, shock-absorber 9 may be arranged ahead of tie rod 10.

EFFECT: reduced requirements to shock-absorber and perfected characteristics of suspension.

6 cl, 6 dwg

 

The invention relates to two-wheeled vehicles (i.e. bicyclam), mostly with a muscular drive (i.e. rental), designed for city traffic and on rough roads.

When using a bike in the city, where there are no bike lanes and ramps, often disrupt the normal driving mode and get to his feet. In such conditions the advantage of getting a two-wheeled bikes where the seat is low enough - recumbency (legerity).

One of the earliest such structures bike known from patent [US 690.733] from 1902. The bike includes a rigid frame and seat with backrest. Pedal carriage is far in front of the saddle. The rear wheel is driven by means of a chain. The front wheel of a smaller diameter than the rear, mounted on the rotary plug. The wheel - "front", but close to the saddle due to the fact that is installed on a single axis and is connected with the fork of the front wheel with a chain.

The main disadvantage of this design is the complete absence of depreciation. Another disadvantage is the fact that when "reclining" position of the cyclist, leaning back, "front wheel for ease of management should be high enough and close to the saddle, i.e. to occupy the space d and the cyclist. On the one hand, aggravates the design, and on the other is a little uncomfortable when landing on the bike, especially when emergency Dismounting".

Known, for example [US 3.834.734, US 4.527.811, US 4.878.684, DE 3.405.790 (A1), WO 81/01821, WO 86/05154], Bicycle design, which differs from the previous in that the steering axis associated with the front fork gear mechanism, is not in front of the saddle, and under it - "the lower wheel."

The advantages of this scheme, compared with the previous, is that when the "bottom" position, the steering wheel does not interfere with the landing-landing and there is a possibility to partially unload the spine from shocks by relying on the hands. However, the main drawback associated with the absence of the shock absorber, is stored.

Famous bikes, including reclining type (with backrest)with depreciation rear suspension [US 6.189.908 (B1), US 6.585.278 (B1), US 6.695.335 (B1), US 7.234.718 (B1), SA 2.628.447 (A1), DE 20.2008.004.907 (U1), EP 0.870.672 (A1) and others].

As a prototype made two-wheeled vehicle [US 470.317]. It contains a frame, saddle, front wheel, mounted on a swivel front fork, handlebar, mounted directly on the front fork, a rear wheel, and cushioned suspension rear wheels. This pendant includes a pendulum fork rear wheels, hinged relative to the frame, and a shock absorber, the army is deeply pendulum fork to the frame, and the axis of the shock absorber is held vertically and is under saddle. The main elements of the shock absorber is a compression spring and a Central stem that is associated with the pendulum with a fork.

The advantage of this two-wheeled vehicle (Bicycle) is amortized suspension. However, at relatively low location of the saddle, characteristic of recumbents, the following disadvantages occur:

- Used space in front of the cyclist is an obstacle when emergency Dismounting".

- Because the legs and arms of the cyclist in front, on rough roads all shocks, although weakened by the shock absorber, are perceived by the spine.

An effective shock absorber, in addition to the springs, should contain hydraulic or pneumatic dampening device that increases the overall cost and reduces the overall reliability of the bike.

To address these shortcomings in two-wheelers (Bicycle) amortized rear suspension containing frame, saddle, front wheel, mounted on a swivel front fork, handlebar, rear wheel suspension which includes a pendulum fork pivoted relative to the frame and its associated spring absorber associated with this fork rod, which is positioned vertically and is located is under the saddle, the wheel is mounted on a vertical rod can be rotated about its axis and is connected with the front fork gear. The vertical force from the side of the arms is directly on the pendulum fork, bypassing the shock-absorbing spring.

Like other Bicycle with the "lower" position, the proposed design provides a comfortable fit-landing and allows the load from the spine to carry on the hands. As with other vehicles with amortized rear suspension, this design protects humans, especially the spine, from the jerks on rough roads. Sverhsummarny effect arises due to the fact that the hands resting on the pendulum fork bypassing the spring, successfully perform the function of a vibration damper elastic suspension. This allows not only to "save" on a hydraulic or pneumatic shock absorber, but also to maximize suspension travel and further improve its characteristics by connecting reflexes of the human body. Hands first "felt" push, mechanically increase the resistance to the push.

The wheel is made consisting of two inclined tubes converging at its lower part, connected by a horizontal crossbar in the middle part and the upper ends of the arms, RAS is than necessary, horizontally at the level of the saddle. In the lower converging portion of the steering wheel and in the middle of the horizontal crossbar fixed sleeve with holes designed to interact with the rod. "Triangular" shape steering provides the necessary strength, and the arms - maximum convenience.

To increase the transverse rigidity of the system: pendulum fork-frame, a rod connected with the pendulum fork hinge having an axis parallel to the axis of the hinge between the pendulum fork and frame, and interacts with the guide elements fixed to the frame preventing rotation of the rod in the plane perpendicular to the direction of movement of the vehicle. In the simplest case, this guide element is designed in the form attached to the chassis of the guide sleeve with covering the cylindrical rod hole. Moreover, the axis of this hole is perpendicular to the plane passing through the axis of the hinges formed by the pendulum fork to the frame and a rod in the middle position of the pendulum fork.

Rational, from the point of view of compactness and weight reduction is a constructive solution, in which a shock-absorbing spring mounted on the rod. Its lower end through the split sleeve rests on the annular ledge of the stem, and the top end on the guide sleeve connected to the frame and covering the stem. The lower bushing steering interacting the with the separation sleeve through the angular contact bearing. Upper steering bushing mounted on the crossbar, covers the rod in its part located above the guide sleeve fixed to the frame.

In another constructive variation, the lowest location of the saddle, axle shaft, wheel bearing, rigidly fixed on the pendulum fork and the shock absorber connecting the pendulum fork frame is in front of the stem.

Examples of implementation of the invention is illustrated by drawings, where figure 1 shows the proposed vehicle (bike), side view, figure 2 is the same bike, a top view, figure 3 - front swivel plug, 4 - rear pendulum fork, figure 5 - the wheel on the vertical shaft. Figure 6 shows another structural variant of the proposed vehicle.

The bike shown in figure 1-5, includes a frame 1, a seat 2 with a back 3, front wheel 4 fixed on the turning of the front fork 5, the wheel 6, a rear drive wheel 7, the suspension includes a pendulum fork 8, hinged to the frame and its associated spring absorber 9. Associated with this fork stem 10 is oriented vertically and is under saddle. The wheel 6 is mounted on a vertical shaft 10 can be rotated about its axis and is connected with the front fork 5, the drive mechanism, which in this case includes DV is the horizontal thrust 11. The vertical force from the hands through the steering wheel 6 and the shaft 10 is directly transferred to the pendulum fork 8, bypassing the shock-absorbing spring 9.

The wheel 6 (see figure 5) is made consisting of two inclined tubes 12, converging in its lower part, connected by a horizontal crossbar 13 in the middle part and the upper ends of the arms 14 arranged horizontally at the level of the seat 2. In the lower, converging part of the steering fixed lower sleeve 15, and in the middle of the horizontal crossbar 13 - upper bushing 16 having a hole for engagement with the rod 10. "Triangular" shape of the steering wheel 6 provides the necessary strength, and the arms 14 at the level of the saddle 2 - maximum convenience.

To increase the transverse rigidity of the system: pendulum fork 8 - frame 1, the rod 10 is connected with the pendulum fork 8 by a hinge 17, having an axis parallel to the axis of the hinge 18 between the pendulum fork and frame, and interacts with the guide sleeve 19, is rigidly fixed on the frame 1. This design is workable, provided that the axis of the sleeve hole 19 (and the longitudinal geometrical axis of the rod (10) in the middle position of the pendulum fork 8 is perpendicular to the plane containing the axis of the hinges 18 and 17.

Shock-absorbing spring 9 attached to the rod 10. Its lower end through the split sleeve otpiralsya on the annular ledge 21 of the rod 10, and the top end on the guide sleeve 19 connected with the frame 1 and covering the stem 10. The lower sleeve 15 steering communicates with the separation sleeve 20 through the angular contact ball bearing 22. Upper steering bushing 16 mounted on the crossbar 13, covers the rod 10 in its part located above the guide sleeve 19 fixed to the frame 1. On the drawing (figure 1) also shows a telescopic device 23 lengthening of the frame 1, the hinged trunk 24, the front reflector 25.

The vehicle depicted in figure 1-5, is driven through the muscular force of the person by means of a pedal drive containing the crank 26, the circuit 27 leads 28 and 29 driven sprocket. However, the proposed design amortized rear suspension can be used in combination with other types of actuator, in particular, in a light motorcycle.

The system works as follows. When driving on a smooth road cyclist easily holds the wheel 6 (with one hand). Tremors from the minor road irregularities, solitary or occur with high frequency (e.g., gravel), successfully treats the spring 9. Deep potholes and wavy unevenness person should transfer some of his weight on his hands. This is, firstly, directly reduces the load on the sciatic bumps and spine, and secondly, almost instantly Gus is t oscillation damping system. While the shocks transmitted to the hands from the side of the road, are not absolutely rigid, as the rod 10 is not on the axis of the rear wheels and is moved forward and has some vertical movement with pendulum frame, though much less than the saddle.

In another constructive variation, shown in Fig.6, related to vehicles with the lowest position of the seat 2, the geometrical axis of the shaft 10 carrying the wheel 6 fixed to the pendulum fork 8, and the damper 9 connecting the pendulum plug 8 to the frame 1, is located in the front of the rod 10. In this construction an additional transverse rigidity of the system is assured by the rod 10, and a reinforced hinge 18 connecting the pendulum plug 8 to the frame 1. Cushioning system works similar to the previous one.

The proposed two-wheeled vehicle is more convenient than a regular road bike when driving around town. It is convenient to continue movement, as it is enough to put on the ground the feet (or one foot). With curbs optional jump, and you can "slide", relying on the feet, while remaining in the saddle. When meeting with major obstacle to man is not threatened in front of the wheel. Easy "Dismounting" in many cases helps to avoid falling. Is semi horizontal position of the body more blugaria is but for thorax and pelvic organs. From existing same recumbents the proposed design differs significantly better shock absorption, which makes possible its use on rough roads and even on rough terrain. Promising is the use of the proposed device in the lungs motorcycles, and electric vehicles.

1. Two-wheeled vehicle with amortized rear suspension containing frame, saddle, front wheel, mounted on a swivel front fork, handlebar, rear wheel suspension which includes a pendulum fork pivoted relative to the frame and its associated spring absorber associated with this fork rod, which is positioned vertically and is under saddle, characterized in that the wheel is mounted on a vertical rod can be rotated about its axis and is connected with the front fork gear mechanism, while the vertical force from the side of the arms is directly on the pendulum fork, bypassing the shock-absorbing spring.

2. The vehicle according to claim 1, characterized in that the wheel is made consisting of two inclined tubes converging at its lower part, connected by a horizontal crossbar in the middle part and the upper ends of the handles located horizontally at the level of the saddle, being the m at the bottom, the converging part of the steering wheel and in the middle of the horizontal crossbar fixed sleeve with holes designed to interact with the rod.

3. The vehicle according to claim 2, characterized in that the piston rod is connected with the pendulum fork hinge having an axis parallel to the axis of the hinge, between the pendulum fork and frame, and interacts with the guide elements fixed to the frame preventing rotation of the rod in the plane perpendicular to the direction of movement of the vehicle.

4. The vehicle according to claim 3, characterized in that the guide element is fixed to the frame, made in the form of the guide sleeve with covering the stem cylindrical bore whose axis is perpendicular to the plane passing through the axis of the hinges formed by the pendulum fork to the frame and a rod in the middle position of the pendulum fork.

5. The vehicle according to claim 4, characterized in that the shock-absorbing spring mounted on the vertical rod, its lower end through the split sleeve rests on the annular ledge of the stem, and the top end on the guide sleeve connected to the frame and covering the stem, the lower steering bushing communicates with the separation sleeve through the angular contact ball bearing, upper steering bushing, mounted on a horizontal beam that covers the stem in part, the location is routed above the guide sleeve, fixed to the frame.

6. The vehicle according to claim 1, characterized in that the axis of the shaft carrying the wheel, rigidly fixed on the pendulum fork and the shock absorber connecting the pendulum fork frame is in front of the stem.



 

Same patents:

Bicycle frame // 2452649

FIELD: transport.

SUBSTANCE: proposed frame is made from carbon fiber-reinforced plastic integral unit and has lateral sections flattened on sides. Frame has main part 2 provided with heat tube 3, seat post 4 and pair of rear blades 6 with horizontal sections 10 to secure pedals 11. Generating line of frame curved section 7 feature the shape of arc 8 running from heat tube 3 to rear wheel fastening 9. Heat tube 3 is arranged along tangential line to arc 8. Seat height adjustment is by pocket 5 extending from frame downward.

EFFECT: better aerodynamics, higher hardness.

1 dwg

FIELD: transport.

SUBSTANCE: guide frame 1 supports seat 6 arranged on carriage 5 furnished with retainer 41 interacting with one of frame holes 46. Two swing levers 13, 14 with pedals 15, 16 are coupled via bracket 10 to carriage 5. Backrest 8 resting on roller 9 is hinged to seat 6. Seat is varied by varying backrest inclination in locking carriage 5 relative to appropriate hole 46. For rowing, retainer 41 is disengaged from frame 1 to allow pulling steering bar 40 and straightening legs to displace seat 6 on carriage 5. Gear ratio is changed by displacing slide 34 with retainer 35 on bracket 10. Every cable 23, 24 extends from fastener 39 on bracket 10 to run around rollers 36, 37 of slide 34 and rollers 32, 33 of levers 13, 14 to blocks 21, 22 of rear wheel drive 2.

EFFECT: seat variation, reduced bicycle length with vertical position of backrest.

2 cl, 5 dwg

FIELD: transport.

SUBSTANCE: bicycle relates to bicycles with backrests and semi recumbent position. Brackets 21 for fastening links 17, 18 is arranged ahead of handlebar 8. Con rods 11, 12 carry pedal posts 24, 25 for high position of pedals 26, 27 to prevent bicyclist lower leg striking against co rods 13, 14 in pedaling. Adjustable clamps 22, 23 allow displacement of posts 24, 25 along con rods 11, 12 to regulate position of pedals 26, 27 to match with bicyclist lengths and, hence, allow fixed position of seat 2.

EFFECT: simplified design, higher speed.

2 cl, 2 dwg

FIELD: foldable snowmobiles.

SUBSTANCE: invention refers to foldable snowmobiles. In the course of assemblying the subframe shank (1) is inserted into the front part of the back bone frame (11). The engine and controls are installed on the subframe (1). The caterpillar drives (9, 10) with the mounting (26, 45) and the seat (34) with the luggage space (35) are detachably installed on the back bone frame (11).

EFFECT: ensuring of portability.

5 cl, 13 dwg

FIELD: transport.

SUBSTANCE: proposed bicycle comprises two articulated frames. Two deflecting rollers 56, 57 are fitted on common spring-loaded axle 54, 60 for both runs of chains 38 and located nearby frames hinge joint. In bicycle working position, axle 54 fits in hole 52. In folding the bicycle, axle 54 is turned downward to enter hole 51. Retainer 61 retains chain 38.

EFFECT: folding bicycle.

4 dwg

Pedal car // 2434777

FIELD: transport.

SUBSTANCE: invention relates to bicycles with back support and foot drive with reciprocating levers jointed with cranks by con rods. Flexible plate 21 prevents the end of crank 18 equipped with horizontal roller from reaching "dead point" position. Removable seat 10 is fitted with the help of seat stay 24, split fastener, inclined regulator slide 25 and shock absorber 26 of variable-rigidity ensured by varying shock absorber inclination on fastening its lower end in different openings of bracket 27. Releasable luggage frame 43 may be arranged on detachable stays 39 of support wheels 13.

EFFECT: higher efficiency of drive and easier use.

10 cl, 8 dwg

One-track bicycle // 2424940

FIELD: transport.

SUBSTANCE: bicycle relates to bicycles with backrests. Turning handlebar 21 about vertical axis 20 allows turning front wheel 4. Inclination of handlebar 21 relative to horizontal axis 17 allows lifting or lowering extra lateral wheels 36. With wheels 36 lowered, bicycle starts and stops. Abrupt lowering of wheels 36 prevents overturn at cross-wind burst. Disks are secured to wheels 36 to engage with rear wheel tire 3. With wheels 36 lifted in downhill, said wheels accumulate energy by means of disks to be given up in climbing to provide for stability due to wheeling and gyro moment.

EFFECT: higher stability at cross-wind burst.

4 cl, 4 dwg

FIELD: transport.

SUBSTANCE: invention relates to transport facilities, namely, to bicycles. Proposed bicycle comprises frame, wheels and pitmen drive. Said drive represents an eccentric drive and comprises drive sprocket, rockers and levers. One lever has its one end articulated with rocker free end, while another end of the lever accommodates pedal. Second lever is similarly jointed with another rocker. Articulation between levers and rockers is spring loaded and incorporates adjustable elements to limit lever turn angle relative to rockers and engagement elements to limit extreme position of levers relative to rockers. Length of levers makes 0.25 to 0.95 of that of rockers in pitmen drive. Note here that pedal axle in initial position does not extend beyond its size in rocker.

EFFECT: simplified design and higher efficiency.

3 cl, 3 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

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.

EFFECT: comfortable low fit reducing air drag and increasing front wheel diametre to facilitate cross country capacity.

4 dwg

Snow mobile // 2424150

FIELD: transport.

SUBSTANCE: invention relates to collapsible one-track ice mobiles. Ice mobile elements are integrated into three independent modules, that is, front support module 1, frame module 2 and rear support module 3. Hooks 17, 26 and retainers 1-3 hinge said modules together.

EFFECT: fast assembly-disassembly, smooth running.

4 cl, 7 dwg

The invention relates to a frame of a tricycle, providing the suspension axis of the rear wheels

Transport facility // 2433935

FIELD: transport.

SUBSTANCE: invention relates to sidecar machines. Motorcycle-to-sidecar linkage comprises: transverse links 9 of motorcycle and sidecar frames, controls of front wheel 4 provided with rotary lever 11 hinged by crossarm 10 with handlebar 24, and engine 22 coupled via gearbox with drive wheel 2. Additionally, motorcycle-to-side car linkage comprises: lengthwise frame 6 arranged on right-hand side of sidecar, additional lengthwise 12 and crosswise 13 elements jointed to said transverse links 9 to form bearing frame (9, 12, 13) arranged between motorcycle frame 1 and lengthwise frame 6 and jointed thereto by split joints. Bearing frame (9, 12, 13) is additionally provided with fasteners of body 14 with handlebar 24, auxiliary and additional equipment of aforesaid body. Body 14 is protected from on top and sides by lining 23 and wind glass. Note here that front and rear compartments double as luggage chambers 25.

EFFECT: higher comfort and ease of control.

3 dwg

FIELD: transport.

SUBSTANCE: drive lever comprises handles 23 to rotate rear wheel via chain. Foot thrusts 15 are mounted at front of steering yoke by means of telescoping parts 12. Other telescoping parts 11 are to be secured to handlebar. Thrusts 15 are adjusted along steering yoke by easing clips 18 jointing telescoping parts 12 with said yoke and pulling parts 11, 12 apart.

EFFECT: separate use of crank pedal drive and lever hand drive for uniform load on muscles.

5 dwg

One-track bicycle // 2424940

FIELD: transport.

SUBSTANCE: bicycle relates to bicycles with backrests. Turning handlebar 21 about vertical axis 20 allows turning front wheel 4. Inclination of handlebar 21 relative to horizontal axis 17 allows lifting or lowering extra lateral wheels 36. With wheels 36 lowered, bicycle starts and stops. Abrupt lowering of wheels 36 prevents overturn at cross-wind burst. Disks are secured to wheels 36 to engage with rear wheel tire 3. With wheels 36 lifted in downhill, said wheels accumulate energy by means of disks to be given up in climbing to provide for stability due to wheeling and gyro moment.

EFFECT: higher stability at cross-wind burst.

4 cl, 4 dwg

FIELD: transport.

SUBSTANCE: invention relates to bicycles wherein pedal shaft passes through wheel hub to be coupled with wheel via universal joint or constant velocity joint. On turning handlebar 10 in the limits of preset angle, fork 4 may not turn. On turning handlebar through angle exceeding preset one, handle bar thrusts against ledges 16 of fork 4 to turn that latter and the wheel. Springs 15 are arranged between frame 13 and fork 4, spring mounting force being sufficient to retain fork 4 in neutral position and no inhibiting the turn of fork 4 after turning handlebar 10 into extreme positions thanks to forces applied to springs 15 exceeding preset force. On returning handlebar 10 in neutral position, fork 4 automatically holds its neutral position.

EFFECT: ruling out handlebar swinging from forces applied to pedals.

6 dwg

FIELD: transport.

SUBSTANCE: invention relates to bicycles with both hand and foot drive. Every carriage (9, 10) with foot supports (32, 33) is linked by tie (34, 35) with bell crank (19) which is swung by handlebar (21). Guides (7, 8) of carriages (9, 10) are arranged on sides of front wheel (4) and secured to frame (1) by hinges (5, 6) with vertical turn shaft that can sideways from front wheel (4). Note here that plates (14, 15) are jointed to front wheel fork (12) for guides (7, 8) or carriages (9, 10) to thrust there against when front wheel (3) turns.

EFFECT: increased turn angle of front wheel.

4 dwg

Bicycle // 2391244

FIELD: transport.

SUBSTANCE: bicycle relates to backrest bicycles, so-called, recumbent. Proposed bicycle consists of two frames jointed via pivot joint and shock absorber. Seat is attached to frame rear part, while fork (12) seats in bearings (10) with two wings (14, 15) and steer, located at bottom and top parts, respectively. One wing (14) is secured by split joint (16) to nut (17) screwed on axle (18) with hole. Another wing (15) is secured by split joint (19) to eye (2) with hole fitted on axle (18) with hole and has flange (21) on its end. Hub (23) of front wheel (3) is fitted on axle (18) with hole in bearing (22) mounted between nut (17) and eye (18). Two tubes (26, 27) with bearings (28, 29) on its ends are secured to front part of frame (5) of the sides of front wheel (3). Said tubes receive shaft (3) with con rods (31, 32) and pedals 33 on ends. Shaft (30) passes through axle (18) with hole. Shaft (3) is coupled with rear wheel via chain gear (40).

EFFECT: higher reliability of front wheel bearing, simple dismantling of front wheel.

4 cl, 4 dwg

FIELD: transport.

SUBSTANCE: car control device comprise steering wheel (3) coupled with first element (4) that supports second element (13) to drive gears (16) running on axles (17, 18) to transfer motion to turn controlled front wheel (7). Second element (13) is coupled with LH and RG gears (16) running on LH and RD axles (17, 18). One ends of the latter are bent off at 90 with respect to axles and have sliding contact with first element (4). Other ends of axles (17, 18) are coupled with casings (19, 20) furnished with rolling bearings (21, 22) fitted on axle (23) supporting controlled front drive wheel. Tire of aforesaid wheel can have spherical central part (11), while its edges can have support triangular ledges (12) to provide for car stability in turning to the right or left. Proposed device can be used in three-wheeled car with one controlled front wheel (7), two rear driven wheels and streamline body.

EFFECT: higher maneuverability and stability on turns.

2 cl, 3 dwg

FIELD: transportation.

SUBSTANCE: year-round transport vehicle has frame (1), engine (8), brake and movement mode control system. At that front driving wheel (2) is installed in front part of frame (1), and back rotary wheel (3) is installed in fork (6), vertical axis of which is located in bearing of frame back part (1). Wheels (2, 3) are equipped with air chamber of low pressure or chamber filled with porous rubber. Front wheel (2) has diametre of 1000-1200 mm, back wheel (3) has diametre of 500-600 mm. Movement mode control system comprises motorcycle steering wheel (12), which is installed in vertical axis on stand above front wheel (2) and is able to transfer motion from steering wheel (12) to fork (6) of back wheel (3) by means of levers (13) and to control engine (8) operation and brake.

EFFECT: improved cross-country ability and maneuverability.

6 cl, 6 dwg

FIELD: transportation.

SUBSTANCE: proposed bicycle with rowing propulsion relates to muscular force driven vehicles and can be used for transportation and exercising. Guide (6) for the carriage (7) is under seat (2). Leg supports (25) are fixed on two levers (23), each of which is hinged (21) to carriage (7) with provision for sideway rotation so that, levers (23) can be used as a wheel stop when one of them rotates. Leg supports (25) are on the sides of the front swivel wheel.

EFFECT: easier use due to reduction of the wheel base.

11 cl, 24 dwg

Up!