DE102009003896A1 - Scooter with hand lever drive - Google Patents

Abstract

Worldwide, urbanization continues unabated. Shifting traffic to sustainability is urgently needed. Handy muscle vehicles such as collapsible scooters can be used as a feeder vehicle for public transport and make it more attractive. For this, the ergonomic efficiency, comfort and driving safety of the vehicles must be significantly improved. In addition, the driver should be provided with important data on the local environment and the stops and departure times of buses and trains. The new scooter with hand lever drive allows by a lever arm (4) located far back in the vehicle pivot (5) a movement that corresponds to the most powerful axis of movement of humans and allows the use of many strong muscle groups. It offers a continuously adjustable, lubricant-free power transmission by means of belt (11), preferably on the front wheel (9). An electronic device (13) uses radio services to locate and obtain information that can be displayed to the driver via a display. The scooter can also be used for luggage transport and as a stool during waiting breaks. Its wheels are completely concealable for transport. The scooter is ergonomically extremely efficient, safe to drive and comfortable thanks to additional functions. Using GPS information and electronic timetable information, it guides the driver punctually and precisely to the public transport system and shortens the ...

Description

Vehicles of the generic term have been known for a long time and in the last 10 years in particular a significant innovation activity has occurred in this regard. Such vehicles are primarily intended for fun and training purposes, but it should also be a more comfortable or faster driving than by the repulsion with the legs on the ground can be achieved. Since such vehicles can usually be easily folded, they are in principle suitable as a feeder vehicle for public transport and can be carried in buses and trains as hand luggage. This gives them an important role to play in converting traffic to sustainability. Recent examples of hand-levered scooter-type vehicles are known in US Pat WO 2006/005893 A1 and WO 92/13750 , in the Korean Patent Application 1020060085544 A , in US Pat. No. 6,942,234 B1 and US 5,997,020 , in the French applications 2,843,090 and 2,818,951 , of the Canadian Application 2,588,303 and in the European patent application EP 1 362 782 A1 shown.

All of these applications relate to specific forms of power transmission between the handlebar and the rear or front wheels, all of which have in common that the pivot point of the hand lever is at the height of the steering axis, ie above the front wheel. This solution is technically obvious and allows easy folding of the vehicle by turning the handlebar around this pivot point. If you connect the front and the rear end point of the lever travel, results in all of a front-to-top-to-bottom-inclined line. This is ergonomically unfavorable, since in the main, only the arm forces can be used, even obliquely to the main working direction, which indeed aims from the hand to the chest ( 1 ). Together with the unfavorable leverage ratios in the power transmission, which are usually technically complex and frictional with multiple force deflections, there is only a small force development on the wheel. As an effective means of locomotion these solutions are therefore eliminated. Another disadvantage is that a support on the handlebar during braking is not possible and that the point of application of the arm force varies greatly relative to the steering axis, which makes precise steering difficult. The in WO 2006/005893 A1 shown scooter is because of its far behind the front wheel are the steering axle practically impassable. Since the large flow of the front wheel causes a sudden folding of the handlebar in curves. The state of the art shows not only ergonomic, but sometimes also significant safety deficiencies.

task The invention is to avoid the above-mentioned disadvantages and an ergonomically efficient, safe and comfortable vehicle as a time-saving feeder vehicle to the public Traffic is suitable and can be taken in bus and train. To it must be light and foldable and provide the driver with up-to-date information about can display the public transport system.

According to the invention this object is achieved in that the handlebar ( 3 ) on a lever arm ( 4 ), whose fulcrum ( 5 ) is at least twice as far from the front axle as from the rear axle and preferably close to or at the rear axle ( 6 ) lies. This results in a lever travel on the handlebar ( 3 ) from the front-to-bottom, back-to-top, which corresponds to the most powerful human movement axis (HM) and allows the use not only of the arm muscles, but also of the strongest muscle groups in the legs, buttocks and back. To support this is the footboard ( 2 ) arched relatively long and high, so that a good and safe power support is possible. The steering movement is achieved via scissor-type linked articulated levers ( 7 . 8th ) from the handlebar ( 3 ) on the front wheel ( 9 ) transfer. The articulated levers ( 7 . 8th ) are movable about the transverse axes, but the torsion axis torsionally rigid. They resemble the working stroke of the lever arm by the scissors movement ( 4 ) and allow folding of the lever arm ( 4 ) for transport. At the same time they limit the working stroke to the rear-top, with a stop a complete stretching of the two toggle ( 7 . 8th ) and provides controlled folding on the forward stroke. To compensate for the tilt of the handlebar axis and control axis at different positions of the lever arm ( 4 ) The joints are also movable in the second axis perpendicular to the steering movement, at least within certain limits. It can also be the toggle lever ( 7 . 8th ) rigid, but designed to be torsionable in its longitudinal axis, z. B. as a slotted box section. The power transmission to the front wheel ( 9 ) or the rear wheel ( 10 ) by a traction means, preferably a belt ( 11 ). The belt ( 11 ) is based on the principle of simple pulley to pulleys ( 16 ) and transmits the traction to a drive pulley ( 21 ) with freewheel, which on the axis of the rear wheel ( 10 ) or the front wheel ( 9 ) sits. The free end of the belt ( 11 ) is replaced by a roll ( 12 ), or unwound from her, preferably a coil spring is used. It is advantageous, the pulleys ( 16 ) on roll carriers ( 17 ), which on the lever arm ( 4 ) or at the upper toggle lever ( 8th ) or on the lower frame tube ( 18 ) are displaceable and can be fixed in different positions. Thus, the gear ratio is changeable. It is also possible to fix the fixed belt end ( 19 ) in different positions on the vehicle frame ( 1 ) or at the lower toggle lever ( 7 ), which also causes a variation of the transmission ratio. As a belt It is possible to use a thin toothed belt or also a V-ribbed belt, which is replaced by a loading roller ( 20 ) to the drive disk ( 21 ) is pressed. The contact pressure can be controlled by a pressure spring ( 28 ) or a lever ( 22 ) are produced at one end in the Zugtrum the belt ( 11 ) running pulley ( 16 ), which at its other end on the vehicle frame ( 1 ) is rotatably mounted and the in between the insert roller ( 20 ) wearing. Thus, the contact pressure of the belt force is proportional and there is no bias in the slack required, which would indeed be generated by the winding mechanism. Thus, the efficiency of the power transmission under each driving condition is maximum. The lever arm ( 4 ) is preferably constructed telescopically and can be adjusted by means of a clamping device on the body size and pushed to compact folding to the appropriate length.

An ergonomically particularly advantageous embodiment of the invention provides, the working stroke of the lever arm ( 4 ) in two parts, a rear-upper part (B), in which only the driver's pulling force acts, and a front-lower part (A), in addition to the force of a biased during the forward movement of the lever arm spring ( 24 ) is used for the belt train. The spring ( 24 ) in at least one third, but preferably in the front 4/5 of the entire working stroke. The feather ( 24 ) thus represents an energy storage, with the other muscle groups of the driver can be used. The hardness and the position of the spring ( 24 ) is preferably adjustable. With the setting of this resulting pressure point, the normal height of the handlebar ( 3 ). The feather ( 24 ) can be placed between any pair of four levers: lever arm ( 4 ), Frame tube ( 18 ) and the two articulated levers ( 7 . 8th ) be placed. The Federwir effect can also be generated by a plurality of springs on different lever pairings. It is advantageous, the working stroke back-up by a stop spring ( 43 ) in one of the joints of lever arm ( 4 ) or articulated levers ( 7 . 8th ), which prevents an abrupt stop of movement. This task can also be done by the spring ( 24 ) take. A particularly light version, as a spring ( 24 ) for energy storage no steel spring, but a much lighter gas spring ( 46 ) to use.

For folding, the effect of the spring ( 24 ) be lifted, z. B. by a pushbutton, the spring ( 24 ) on the abutment. The pressure point also allows a certain support of the driver in case of disturbances about the transverse axis, z. B. when braking, which increases driving safety. In addition, it is proposed that the scissor movement of the articulated levers ( 7 . 8th ) to block automatically during braking, preferably in that the brake lever via a Bowden cable ( 31 ) or a hydraulic line also on a joint brake ( 32 ) acts. This and the spring ( 24 ) are advantageous in the upper pivot point of the upper articulated lever ( 8th ), since there is sufficient space available and the adjustment of the spring ( 24 ) can be easily operated. It is also possible to make the joint brake operable by another lever independent of the vehicle brake, or to make it so that it acts automatically and the brake can be solved for rowing by the operation of a lever.

The folding of the vehicle takes place by turning the handlebar ( 3 ) by 180 °, whereby the two toggle levers ( 7 . 8th ) between the lever arm ( 4 ) and the frame tube ( 18 ) pan. After disengaging the spring ( 24 ) and pushing together the telescopic lever arm ( 4 ) to appropriate length, the lever arm ( 4 ) to the head tube ( 27 ) are folded down. The driver ( 3 ) itself is after loosening a clamping axis by a diagonal joint ( 33 ) can be folded down sideways. The wheels are for transport by two half-shell-like mudguards ( 29 . 30 ) Coverable, with one part is located in the ride within the other and can be pivoted about a coaxial pivot point. Thus, the vehicle is handy foldable and thanks to the lubricant-free belt ( 11 ) and the wheel cover can be transported cleanly. Especially in the vertical position, it takes up very little space. Another embodiment provides, the rear wheel ( 10 ) in a rocker ( 44 ), which are rotatable about a transverse axis on the frame tube ( 18 ) near the rear end of the footboard ( 2 ) is attached. The swingarm ( 44 ) is supported by two elastomeric buffers ( 44 ) on the frame and is pivotable for transport to the front down, which significantly shortens the transport dimension.

As a feeder vehicle for public transport, it is optimal when it uses modern communication and information services. Therefore, it is proposed on the handlebar ( 3 ) a corresponding electronic device ( 13 ) with display, preferably in a variable holder. The electronic device ( 13 ) uses radio services to display its own location (eg via GPS), the stops in the area (electronic city maps) and the current departure times of buses and trains (electronic timetables). Based on the typical driving speed and the route, the electronic device calculates ( 13 ) also the required travel time and also indicates which speed must be driven to reach a particular connection or appointment. The electronic device ( 13 ) can also communicate bidirectionally with other devices and z. For example, you may submit your location or estimated time of arrival to another.

According to the invention, the electronic device ( 13 ) via a charging socket with power from a dynamo ( 14 ) in one of the wheels ( 9 . 10 ) or in one of the pulleys ( 16 ) is housed. Also other electronic devices can be loaded. The Dynamo ( 14 ) also supplies the lighting system ( 23 ).

The electronic device ( 13 ) can also be calculated from the driving speed and from sensors ( 25 ) measured weight of the driver or a force sensor in the bearing of a pulley ( 16 ) determine and display the approximate calorie consumption, optimizing its function as a training device. The sensors ( 25 ) and the speed sensor ( 26 ) are connected to the electronic device ( 13 ) connected via cable or radio link.

A further improvement provides a fastening arm ( 34 ) with a horizontal axis joint on the vehicle near the footboard ( 2 ), which is next to the lever arm ( 4 ) folded up for attachment of luggage, such. B. briefcase or suitcase ( 36 ), which serves on one side of the footboard ( 2 ) and can be laid flat when not in use. The driver then only uses the other side of the footboard ( 2 ), which is at least two feet long.

Furthermore, it is proposed the padded handlebar ( 3 ) give a trapezoidal shape and the trapezoidal plane after releasing a locking or clamping device about a transverse axis on the handlebar stem ( 35 ) to swing back to the horizontal, and the handlebar ( 3 ) complete with handlebar stem stable enough to serve as a stool together with the rest of the vehicle. For this purpose, the joint brake ( 32 ) fixed at the appropriate height or a support strut ( 39 ) are unfolded. Alternatively, it is also possible to turn only the steering axle by 180 °, the lever arm ( 4 ) to the appropriate length to push and fix and the pivoted backwards toggle lever ( 7 . 8th ) on the lever arm in a stop. In addition, the vehicle brake should be provided with a lock.

Another improvement provides for an electric auxiliary drive. This is controlled by a switching roller ( 47 ) in the traction of the belt ( 11 ) in operation or taken out of service. It sits on a short lever and operates a switch or a potentiometer via a control cable 48 with the battery and control unit ( 50 ) connected is. The electric motor ( 49 ) sits in the front ( 9 ) or rear wheel ( 10 ). An electronic circuit can convert the intermittent motor operation thus generated into a continuous one if the motor current remains about ½ to ¾ second longer than that of the switching roller ( 47 ) is maintained uptime.

The Invention has over the prior art a Set of advantages. The new scooter is ergonomically optimal and allows a very efficient use of muscle. He is particularly safe driving through an automatic fixation of Lever when braking and by a constant distance of the handlebar to the steering axle during the rudder movement. He has a stepless variable translation with low technical effort. It is compact foldable and thanks to belt technology and wheel covers without risk of contamination in public transport be transported. The built-in communication device informs about the localities and the connections of public transport and takes care of one seamless change from one to the other mode of transport. Further The scooter can also be relatively bulky luggage such as B. Transport suitcases and as a stool during Waiting times or breaks serve. Besides, he is much lighter than one Bicycle, as no heavy crank, no chain drive and no Circuit is necessary. For these reasons he is too cheaper to produce.

The Embodiment with front wheel drive has additional Advantages. The belt can be much shorter and There are several pulleys away. The adjustment of the translation adjustment is particularly handy. The belt train is located completely outside the leg area and the footboard can be lowered. In addition, there is the role for belt winding protected from curbs above the front wheel axle. The coil spring of the winding roller can be made weaker be, because no belt slack is to be feared. Without Drive elements on the rear wheel can do this in a simple way Transport be folded. The variant with electric auxiliary drive makes driving easier.

Further inventive features and advantages go out the description and the drawings. The embodiments are described below with reference to the drawings. It demonstrate:

1 : the typical leverage become known roller with hand lever drive and the most powerful movement axis of the arms

2 : the lever travel of the scooter according to the invention and the most powerful movement axis of the human

3 : the vehicle in side view

4 : the vehicle in top view

5 : the vehicle folded up

6 : the vehicle with the use of the handlebar as a stool

7 : the vehicle with the attachment arm and luggage folded up

8th : the upper pivot of the lever arm with spring for energy storage

9 : the insert roller with pressure spring

10 : the rear wheel with unfolded second fender half

11 : the vehicle with front-wheel drive, gas spring, rocker and electric auxiliary drive

In 1 For example, a typical hand-lever type scooter of the prior art is shown. He has a pivot point of the lever arm on the steering axle. The solid arrow shows the movement axis of the hand lever, the dashed arrow HA shows the most powerful axis of movement of the arms, which corresponds to the line hand chest.

In 2 the scooter according to the invention is shown. The pivot point of his lever arm is located in the rear third of the track front-rear axle, so that a power stroke is generated from the bottom front, back-up. Its direction corresponds to the most powerful movement axis of the human, which is produced by leg, buttocks, torso and arm muscles. In this way, more than twice the performance is possible.

3 shows an embodiment of the vehicle in side view. The head tube 27 is with the rear wheel 10 over the frame tube 18 and the vehicle frame 1 connected. Both consist of high-strength aluminum material, as do most of the other components. Above the vehicle frame 1 is the running board 2 by means of four lateral support arms and four sensors for the weight 25 appropriate. The sensors are connected to a signal line with the electronic device 13 which calculates the approximate energy consumption of the driver from weight, travel speed by means of the formula for the drive power of a vehicle. The lever arm 4 is about a joint 5 with the vehicle frame 1 connected. It consists of a two-part ovalized tube, which is telescopically adjustable in length. At its upper end of the steering head is mounted with bearing, in which the handlebar stem 35 rotates. The handlebar stem 35 is by a sloping joint 33 divided in two. It can be bent sideways at a rotation of 180 ° by about 120 °, so that the folded down handlebar 3 comes to lie parallel to the longitudinal plane of the scooter. The handlebar stem 35 carries at the lower end of a joint that can rotate around the transverse axis and on the upper toggle lever 8th is attached, the transmission of the steering movement to the lower link lever 7 and via another joint on the control axle of the front wheel is used. All joint axes are in straight ahead position parallel to the transverse axis of the vehicle and allow a scissor-like movement to compensate for the working stroke. In the direction of the steering and steering axle, they are torsionally rigid. An abutment in one of the joints prevents overstretching of the two articulated levers for a controlled collapse during the movement of the lever arm 4 from the upper to the lower end point of the working stroke. In the joint between upper toggle lever 8th and handlebar stem 35 there is a spring 24 which is used for energy storage. It acts only in the front-lower part of the working stroke A and must be compressed in the forward movement. The driver 3 is on the handlebar stem 35 attached with a transverse joint, which can be fixed by a clamping lever. After releasing the clamp, it can be pivoted to the rear in the horizontal and serve as a seat. The handlebar carries an electronic device 13 which provides the driver with various information as well as two charging sockets 15 for mobile electronic devices and the brake handle attached. The pulling force applied by the driver is provided by a thin V-ribbed belt 11 on the rear wheel 10 transfer. To achieve a sufficiently high deployment of the belt 11 on the principle of a simple pulley to a pulley 16 on a roll carrier 17 sits in the chair. Further pulleys 16 lead the belt 11 under the running board 2 through to the drive pulley 21 , The roller carrier 17 is on the lever arm 4 slidably mounted and infinitely adjustable by means of clamping lever. This results in a variable transmission ratio with a spread of about 200%. The fixed belt end 19 is on the frame tube 18 attached via a short carrier. The free end of the belt becomes automatically on a roll 12 being wound up, located below the frame tube 18 located. A spiral spring generates the winding force. For this spring to be carried out easily, a bias in the slack side of the belt is used 11 waived. Instead, the belt 11 through a loading roll 20 to the drive pulley 21 pressed. The inlay roll 20 sits on a short lever 22 , which at its front end a deflection roller 16 carries, which is located in Zugtrum. Thus, the contact pressure of the tensile force is proportional. In the front wheel 9 sits a dynamo 14 who has the lighting system 23 , the electronic device 13 and the charging sockets 15 powered. front 9 and rear wheel 10 are made of half-shell fenders 29 . 30 covered in unbreakable plastic. These each consist of a comment 29 and an inner part 30 , with the inner in the outer space finds and can be swung out for transport by about 180 °, whereby the wheels are completely covered. As an electronic device 13 a mobile phone with GPS function is used.

In 4 the vehicle is shown in plan view. One recognizes the trapezoidal handlebar shape and the display of the electronic device, which is well located in the field of vision 13 ,

5 shows the scooter folded and stored in a vertical position extremely space-saving. The lower articulated lever 7 is slightly longer than the upper toggle lever 8th so that the big upper joint behind the joint on the head tube 27 Takes place.

6 shows the scooter with the handlebar folded backwards to the horizontal 3 and with unfolded support strut 39 which transfers the seat forces from the upper joint to the lower one. The scooter can with folded stand 40 be used as a stool or standing aid.

In 7 is shown the use of the scooter for luggage transport. The suitcase 36 gets on the running board 2 placed and on the vertically folded mounting arm 34 secured by means of tension belt. The attachment arm 34 is located to the side of the lever arm 4 and can when not in use on the running board 2 be folded down. A double-legged stand 40 allows parking on the open area.

8th shows the upper joint in detail. The feather 24 is housed in the joint and arranged around a short piece of pipe. It is shaped as a spiral spring, with the ends protrude from the spiral. One end is in a block in the upper toggle lever 8th , the other is bent laterally by 90 ° and rests against an abutment, which in turn is supported by a tooth engagement on the housing of the joint. The position of this abutment is adjustable via the teeth, resulting in an adjustment of the handlebar height and the distribution of the working stroke. To fold up, the spring 24 by means of pushbutton 38 disengaged. The Bowden cable 31 The brake is guided past the joint and divided. The two ends of the envelope are based on the ends of a ring spring 37 used as a joint brake 32 acts by moving in contraction in a wedge-shaped groove between the handlebar stem 35 and with the toggle lever 8th connected part is stuck. To the inclined joint 33 becomes the handlebar stem 35 for folding in the handlebar 3 pivoted.

In 9 is an alternative to the lever system 22 for the generation of the pressing force of the insert roller 20 shown. A double-armed pressure spring 28 carries the inlay roll 20 and rests against the vehicle frame 1 over two studs.

10 this shows the mechanism of the mudguards 29 . 30 and the concentric swinging out of the inner part 30 from the outside 29 , At one end of the inner part 30 a handle nose is attached.

11 shows the vehicle in the particularly advantageous variant with front-wheel drive and electric auxiliary drive. The drive pulley 21 drives the front wheel 9 over a freewheel. The belt 11 is empty side by a Einlegerolle 20 in the toothing of the drive pulley 21 pressed and runs over an upper pulley 16 near the upper joint of the upper articulated lever 7 is attached. The belt 11 steers in all parts. An asymmetric attachment of the frame tube 18 at the head tube 27 allows a larger belt-side steering angle. The role 12 for belt winding sits on the steerer tube of the front wheel 9 , For adjustment, a spring-loaded eccentric clamping lever 42 operated and as a push handle 41 trained roller carrier 17 on the upper toggle lever 8th postponed. The roller carrier 17 carries at its rear end a short boom for the upper pulley 16 , The effect of the adjustment is increased when the belt 11 around another pulley 16 at the lower pivot point of the lower articulated lever 7 to be led. The front wheel carries about 60% of the total weight in the foremost rudder position of the driver, and about 35% in the rearmost, so that there is always enough traction. For particularly compact transport dimensions, the rear suspension is used as a rocker 44 running around an axis of rotation near the rear end of the footboard 2 can be swiveled down and forward and fixed. elastomer buffer 45 support the swingarm 44 in driving position, so that there is also a certain suspension effect. The feather 24 for energy storage is in this example as a particularly light gas spring 46 is executed. It is each with a joint on the two articulated levers 7 . 8th attached. The working stroke of the lever arm 4 is back-up through a stop spring 43 limited between a short extension of the lever arm 4 and the joint carrier of the vehicle frame sits. To assist the driver, this embodiment has an electric auxiliary drive, here by a fixed to a short lever switching roller 47 in the traction of the belt 11 is put into operation. The lever acts on a switch or potentiometer via the control cable 48 with the battery and control unit 50 are connected. This is located under the running board 2 and supplies power to the electric motor 49 in the rear wheel 10 , When braking, the power supply is automatically interrupted by another switch. The electric auxiliary drive is also easy to produce as a retrofit kit. The electromo gate 49 can also be in the front wheel 9 be housed. The battery and control unit 50 is removable and can be secured with a lock.

1

vehicle frame

2

running board

3

handlebars

4

lever arm

5

pivot point

6

rear axle

7

lower articulated lever

8th

upper articulated lever

9

front

10

rear wheel

11

belt

12

role

13

electronic device

14

dynamo

15

charging socket

16

guide rollers

17

roller carrier

18

frame tube

19

fixes strap end

20

inlay role

21

sheave

22

lever

23

lighting system

24

feather

25

sensors for weight

26

speed sensor

27

head tube

28

pressure spring

29 30

fenders

31

Bowden

32

joint brake

33

inclined joint

34

Mounting Arm

35

Steering stem

36

suitcase

37

Ringfeder

38

pushbutton

39

support strut

40

double-armed stand

41

push handle

42

Exzenterklemmhebel

43

stop spring

44

wing

45

elastomer buffer

46

gas spring

47

switching role

48

Steuerkable

49

electric motor

50

Battery- and control unit

HM

motion axis human

A

stroke Front-down

B

stroke back-up

HA

stroke poor

HB

stroke legs

MR

stroke hull

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - WO 2006/005893 A1 [0001, 0002]
• WO 92/13750 [0001]
• - KR 1020060085544 A [0001]
• - US 6942234 B1 [0001]
• - US 5997020 [0001]
• FR 2843090 [0001]
• FR 2818951 [0001]
• CA 2588303 [0001]
• - EP 1362782 A1 [0001]

Claims (18)

Scooter with hand lever drive, with a running board ( 2 ) for the driver and one on the front wheel ( 9 ) acting handlebars ( 3 ) characterized in that the handlebar ( 3 ) on a pivotable about the transverse axis lever arm ( 4 ), whose fulcrum ( 5 ) is at least twice as far from the front axle as from the rear axle and preferably close to or at the rear axle ( 6 ) lies. Vehicle according to claim 1, characterized in that the steering movement from the handlebar ( 3 ) on the front wheel ( 9 ) by at least two articulated levers ( 7 . 8th ), which are pivotable about the transverse axes to the steering axis but torsionally stiff, and that these articulated levers ( 7 . 8th ) the working stroke of the lever arm ( 4 ) relative to the head tube ( 27 ). Vehicle according to claim 2, characterized in that the scissors movement of the toggle lever ( 7 . 8th ) is automatically blocked during actuation of the brake, preferably in that the brake lever via a Bowden cable ( 31 ) or a hydraulic line also on a joint brake ( 32 ) acts. Vehicle according to one of claims 1 to 3, characterized in that that of the driver on the lever arm ( 4 ) applied power by a traction means, preferably by a belt ( 11 ), on the front wheel ( 9 ) or the rear wheel ( 10 ), wherein the free end of the traction means on a roll ( 12 ), or is unwound from her. Vehicle according to claim 4, characterized in that the belt ( 11 ) around pulleys ( 16 ) is guided on the principle of the simple pulley and that he has the power on a drive pulley ( 21 ) on the front wheel ( 9 ) or rear wheel ( 10 ), preferably one or both roller carriers ( 17 ) or the fixed belt end ( 19 ) on the lever arm ( 4 ) or at the upper toggle lever ( 8th ) or on the frame tube ( 18 ) are displaceable, but each fixable attached. Vehicle according to one of claims 4 or 5, characterized in that as belt ( 11 ) a thin tooth or V-ribbed belt is used, which is replaced by a loading roller ( 20 ) to the drive disk ( 21 ) is pressed, the force by a pressure spring ( 28 ) or by a lever ( 22 ) is applied, one end of the vehicle frame ( 1 ) is rotatably mounted and the other end a deflection roller ( 16 ), which in the traction of the belt ( 11 ) running. Vehicle according to one of claims 1 to 6, characterized in that the lever arm ( 4 ) at least in the front and lower third of its working stroke, in the advancement against the force of a spring ( 24 ), which is preferably adjustable in position and spring rate and which can be disengaged for folding. Vehicle according to claim 7, characterized in that the spring ( 24 ) in the upper pivot point of the upper articulated lever ( 8th ) is housed. Vehicle according to one of claims 1 to 8, characterized in that the wheels ( 9 . 10 ) by two-piece mudguards ( 29 . 30 ) are protected in half-shell shape, wherein one part finds place within the other and can be swung out about a coaxial pivot point and then fully envelops the respective wheel. Vehicle according to one of claims 1 to 9, characterized in that the handlebar ( 3 ) an electronic device ( 13 ) bearing a display on which data relating to one's own location, stops and the current departure times of public transport can be displayed, whereby the electronic device ( 13 ) Uses radio networks. Vehicle according to claim 10, characterized in that the electronic device ( 13 ) Displays driving distances and travel times to the surrounding stopping stations, but also other information about the respective district as well as the speed to be maintained for achieving a particular bus or train connection or appointment, the electronic device preferably being able to communicate bidirectionally with other devices. Vehicle according to one of claims 1 to 11, characterized in that a dynamo ( 14 ) by the rotation of wheels or pulleys ( 16 ), wherein the dynamo ( 14 ) the lighting system and the electronic device ( 13 ) or a charging socket ( 15 ) for other mobile devices with power. Vehicle according to one of claims 1 to 12, characterized in that in the footboard ( 2 ) Sensors ( 26 ) for the weight force or on a pulley a sensor for the bearing force are mounted and on one of the wheels a speed sensor ( 27 ) and that both with the electronic device ( 13 ) are connected via cable or radio link. Vehicle according to one of claims 1 to 13, characterized in that a fastening arm ( 34 ) is attached to the vehicle near the footboard with a horizontal axis joint, which is adjacent to the lever arm ( 4 ) folded up for attachment of luggage on one side of the footboard ( 2 ) are turned off, and the Nichtbe use can be laid flat. Vehicle according to one of claims 1 to 14, characterized in that the handlebar ( 3 ) has a trapezoidal shape and that the handlebar ( 3 ) after releasing a lock or clamping device about a transverse axis on the handlebar stem ( 35 ) is pivotable to the rear in the horizontal and that the handlebar ( 3 ) and the handlebar stem ( 35 ) are sturdy enough to serve as a stool with the vehicle. Vehicle according to one of claims 1 to 15, characterized in that the rear wheel ( 10 ) on a rocker ( 44 ), which is about a transverse axis on the frame tube ( 18 ) near the rear end of the footboard ( 2 ) and which can be pivoted forward for transport, whereby the rocker ( 44 ) in the drive position preferably against one or two elastomer buffers ( 45 ) is supported. Vehicle according to one of claims 1 to 16, characterized in that the lever arm ( 4 ) at the rear-upper end of its working stroke against a stop spring ( 43 ), which at the lower joint of the lever arm ( 4 ) or in one of the joints of the toggle lever ( 7 . 8th ) is attached. Vehicle according to one of claims 1 to 17, characterized in that it has an electric auxiliary drive, wherein the electric motor ( 49 ) preferably in one of the two wheels and the battery and control unit ( 50 ) under the running board ( 2 ) and wherein the electric auxiliary drive preferably by a switching roller ( 47 ) in the traction of the belt ( 11 ) is put into operation.