DE102020120818A1 - Bicycle-like vehicle - Google Patents

Abstract

The invention relates to a bicycle-like vehicle (1), which can also be driven by the muscle power of a user, with a handlebar (71), a seat part (21), a front wheel (2) and a rear wheel (3), the front wheel (2 ) is steerable and the drive directly drives the front wheel (2) by muscle power, the muscle power being applied to a pedal (24) that can be moved along a displacement path (W). In order to further improve a vehicle (1) of the type in question in a manner that is advantageous in terms of use, it is proposed that the displacement path (W) of the pedal (24) is independent of a steering position of the front wheel (2), so that a plane (R) , in which the front wheel (2) extends, different from the displacement path (W) depending on the steering position. As an alternative or in combination with this, a fork-fixed bracket (96) can also be provided which engages around the front wheel (2) and is only detachably connected to the fork (62) in a destructive manner, the bracket (96) having a lockable opening to secure the Vehicle (1) for example on a ground anchor (97).

Description

Field of technology

The invention relates to a bicycle-like vehicle, which can also be driven by muscle power, with a handlebar, a seat part, a front wheel and a rear wheel, the front wheel being steerable and the drive directly driving the front wheel by muscle power, the muscle power being on a displacement path displaceable pedal is to be applied.

In addition, the invention relates to a bicycle-like vehicle that can also be driven by muscle power, a front wheel and a rear wheel, the front wheel being steerable and the drive directly driving the front wheel by muscle power, further with a fork in which the front wheel is mounted.

The invention further relates to a bicycle-like vehicle, which can also be driven by muscle power, with a front wheel and a rear wheel, one of the wheels being steerable, further with a seat formation, having a back part and a seat part, with weather protection also being provided.

State of the art

Vehicles of the type in question are known in various designs. These are used, for example, in the leisure sector, but also increasingly more as a means of transport or transport, for example in inner-city areas. A crank drive, for example, is known as a drive in such vehicles, which acts directly or indirectly on one of the wheels, for example via a chain or a belt.

The arrangement of a seat part, in particular a seat formation with in particular a back part, enables an ergonomically favorable sitting position for the user of the vehicle.

Weather protection that may be provided can also offer the possibility of using the vehicle in the rain, for example. In this regard, vehicles are known which have weather protection that protects the user from the front and from above in the direction of travel.

In this regard, for example, the DE 43 19 585 A1 referenced.

Summary of the invention

With regard to the prior art described above, one object of the invention is to design a bicycle-like vehicle of the type in question in a manner that is advantageous in terms of use.

According to a first inventive concept, one possible solution to the problem is given in a vehicle in which the aim is that the displacement path of the pedal pedal is independent of a steering position of the front wheel, so that a plane in which the front wheel extends differs depending on the steering position to the relocation route.

A solution to the problem can also be given according to a further inventive idea in a vehicle in which a fork-proof bracket is provided which surrounds the front wheel and is only detachably connected to the fork in a destructive manner, the bracket having a lockable opening to secure the vehicle to a ground anchor, for example.

A further possible solution to the problem is given according to a further inventive concept in a vehicle, in which the aim is that a foot receptacle is formed in lateral overlap with the front wheel and that the weather protection engages under the foot receptacle and / or, preferably, that the foot receptacle is given by pedal pedals.

As a result of just one of the proposed configurations, but also any possible combination of the proposed configurations, a vehicle that can be handled inexpensively is specified. Handling and driving on narrow paths or driving in the off-road area is aided by this. In addition, a vehicle is created with advantageous theft protection. The further proposed weather protection in the area of the foot support also proves to be advantageous, especially when it is wet.

In an advantageous manner, the steering, in particular the steering of the front wheel, is independent of the operation of the pedal pedal, further in particular independent of a displacement path of the pedal pedal. The displacement path of the pedal pedal can, as is also preferred, be essentially fixed to the frame and, independently of the steering setting, in particular of the front wheel, essentially in the usual straight-line direction of travel of the vehicle.

The displacement path of the pedal is preferably given in a plane that preferably independent of the steering position, in particular of the front wheel, can always be aligned parallel to the preferably non-steerable rear wheel. This results in an ergonomically favorable drive on the front wheel in every possible steering position of the same. The legs and feet of the user, which preferably put a load on the pedal pedals, do not have to perform the steering movement of the front wheel, but rather remain in the ergonomically favorable orientation in the direction of travel forward and essentially parallel to one another.

With reference to a vertical projection of the planes of the steerable front wheel and the pedal pedal (s) onto a rolling plane on which the vehicle can move, the result is preferably a parallel arrangement of the displacement path planes oriented in a straight line of travel, which planes are spaced apart from one another transversely to the plane orientation are. Between these planes extends the plane of the front wheel, which, when running in a straight line, can preferably be aligned approximately centrally between the displacement path planes and in the same direction, and with a steering position deviating from this straight direction, it can preferably assume an acute angle to the displacement path planes.

Thus, in a preferred embodiment, the displacement path of the pedal pedal or the displacement paths of the pedal pedals can allow a steering angle of up to 30 to 50 degrees, preferably about 40 degrees, starting from the straight-ahead direction on both sides, with an arrangement on both sides with respect to the front wheel.

The proposed fork-fixed bracket enables the vehicle to be secured against theft. The bracket can, as is also preferred, also be provided and arranged in the area of the front wheel during normal operation of the vehicle, so that this bracket is always present to secure the vehicle.

In the secured position, the bracket can loop around or penetrate both the front wheel, preferably at the front, and a fixed anchor, for example a ground anchor. In order to establish this securing position, the bracket can preferably be opened, the resulting opening preferably being able to be locked by the user.

The bracket or the bracket opening can be locked in the usual way by a lock provided, which can furthermore be locked and unlocked in the usual way, for example with a key or a numerical code. Alternatively, the lock function can also be coupled to the electronics that may be provided in the vehicle. Any access authorization for the vehicle detected by the electronics can also enable the bracket to be unlocked.

The foot receptacle can be designed in a possible configuration in the form of a footrest on which the foot can be placed in a resting position. If a crank drive is designed for the vehicle, the foot support can also (possibly additionally) be provided by the pedal pedals.

There are preferably such foot receptacles on both sides of the front wheel, possibly in the form of pedal pedals.

These foot receptacles can be gripped under by a weather protection, so that in addition to protection against, for example, rain from the front and from above, protection can also be provided, for example, against splashing water on wet roads. In particular, the area of the foot receptacle can thus be protected from the weather both from the front and from below, and also laterally to the outside.

The features of the above-described independent claims are important both individually and in any combination with one another, further features of an independent claim can be combined with the features of a further independent claim or with features of several independent claims, and also with only individual features of one or more of the further independent claims.

Thus, according to a preferred embodiment, the front wheel can be designed as a hub-less wheel, with a drive element acting on the wheel. As is also preferred, the wheel tire alone can be arranged rotatably around the geometric wheel axis, preferably together with the wheel rim carrying the wheel tire, whereby the hub-free area of the front wheel achieved in this way can optionally be used for the arrangement of drive means cooperating with the pedal crank or cranks. This hub-free area can also be at least partially penetrated, for example, by such drive means, at least in steering positions of the front wheel that deviate from normal straight-ahead travel.

The hub-free design of the front wheel proves to be particularly advantageous when the displacement path of the pedal pedal is decoupled from the steering position of the front wheel.

As is also preferred, the drive element can in particular interact with the wheel rim of the front wheel.

According to a preferred embodiment, several such drive elements can also be provided in the front wheel, with only one drive element being actively driven if necessary and further drive elements provided only indirectly, where the further drive elements can essentially also be designed as guide elements. The arrangement of, for example, three drive and / or guide elements has proven to be advantageous, which further preferably, viewed over the circumference, can optionally be arranged evenly spaced from one another.

The drive elements or guide elements can be designed in the manner of rollers, with torque being transmitted to the front wheel, in particular to the wheel rim of the front wheel, for example by frictional engagement or toothing, in particular with respect to the drive element.

The drive / guide elements also preferably serve to center the wheel rim together with the wheel tire in all dimensions.

In a further embodiment, it is preferred that the pedal pedal can be moved linearly or on a circular path. With regard to the circular path, a uniform curvature is preferred, more preferably with a constant radius over the entire displacement path, the curvature or the selected radius being more preferably selected ergonomically for the corresponding actuation of the pedal pedal. The linear displacement path along a straight line or the curved displacement path along a circular path is preferably obtained in the above-described displacement path plane.

The pedal pedal can also act on a transmission shaft that is fixed relative to the front wheel, the transmission shaft also being able to cooperate with a drive shaft running in the steering axis of the front wheel. The arrangement of the output shaft in the geometrical steering axis of the front wheel can be given in the manner of a vertical shaft and has proven to be advantageous in connection with the decoupling of the pedal displacement path and the steerability of the front wheel.

The transmission shaft on which the pedal pedal acts can advantageously at least partially penetrate the preferably hub-free area of the front wheel, possibly forming a mechanical connection of pedal pedals provided on both sides of the front wheel.

In this case, at least one gear stage can furthermore be provided, for example, in the transmission shaft, but optionally also alternatively in the output shaft, further preferably having a freewheel for the pedal pedals.

The transmission from the pedal to the drive element can, according to a further possible embodiment, be in the form of a cardan shaft, further for example in the form of an articulated cardan shaft.

In order to create as large and sufficient ground clearance as possible in the area of the pedal, especially when cornering, the transmission shaft can run offset to a geometric axis of rotation of the front wheel. This offset can, as is also preferred, be given essentially along the steering axis of the front wheel upwards, correspondingly with increasing distance from the ground. Thus, a related offset between the geometric axis of rotation of the front wheel and the geometric axis of rotation of the transmission shaft can be, for example, 30 to 80 mm, further for example approximately 50 mm.

The interaction of the output shaft with the drive element acting on the front wheel, in particular on the wheel rim, can take place in the form of a transmission according to a preferred embodiment. Such a transmission can have an optionally shiftable reduction and / or translation.

A stationary mounting part can be formed in the interior of the wheel, to which the wheel, in particular the wheel tire with the wheel rim, can rotate relatively. As is further preferred, the holder part can be part of the front fork.

In addition, several such mounting parts in the form of cross struts can also be provided, which can further hold the drive and / or guide elements one below the other, for example in a fastening area. Thus, in an exemplary arrangement of three drive / guide elements, three strut-like mounting parts can be provided.

The mounting element or elements can also be connected, in particular rigidly connected, to the handlebars to be operated by the user for steering the front wheel. The steering movement triggered by the user thus preferably acts directly or indirectly on the mounting element or the Mounting elements and via these via the drive and / or guide elements on the tire of the wheel.

The pedal can have a crank that can be rotated, for example, about the geometric axis of rotation of the transmission shaft, further for example according to the arrangement in conventional bicycles. This preferably results in a circular displacement path of the pedal pedal. In this case, there can be a direct actuation of the pedal by the user, similar to the actuation during normal cycling, during which actuation the foot of the user pressing the pedal also follows the circular path.

In an alternative embodiment, such a pedal-type pedal, which can be moved along a circular path, can be acted on via a linearly guided pedal plate in the manner of a stepper plate. The crank-like pedal pedal can be guided linearly on the pedal plate essentially transversely to the guidance of the pedal plate. The translational movement of the pedal plate is converted into a rotational movement of the pedal pedal, which can be moved in a circular path like a crank.

According to one possible embodiment, the footplates on both sides can be coupled to one another in terms of movement via a rocker that penetrates the hub-free area of the front wheel.

With a linear movement of the pedal, for example in the manner of a stepper plate, the pedal force can alternatively be transmitted to an axially fixed spindle, from which the force can be transmitted to the transmission shaft via a gear coupling. The gear coupling can be provided, for example, via a rope, a chain, a toothed belt or a belt.

To transfer the linear movement of the pedal to the spindle, the pedal can be provided, for example, with a threaded nut adapted to the spindle thread in order to convert the translational movement of the pedal into a rotational movement of the spindle.

The pedal movement can also be transferable to the drive element, for example, by means of a cable pull having at least one cable and deflection pulleys. At least one rope, preferably a plurality of ropes, such as two ropes, for example, is assigned to each pedal pedal, and at least one rope reel can also be assigned to each pedal pedal.

Each cable reel can be provided with a freewheel, preferably in the transmission area between the cable reel and drive element, so that, for example, the vehicle can also be pushed backwards without affecting the cable reel or the cable pull.

A section of the cable pull can extend essentially along the geometric axis of rotation of the front wheel and / or along the steering axis. Deflection pulleys for the rope are furthermore preferably arranged in such a way that a rope tangent of the rope pull extends as close as possible to the steering axis in order to allow only a slight movement of the rope in a direction transverse to the rope extension when steering the front wheel. In an optimal embodiment, the rope tangent extends along the geometric steering axis, but can also be at a distance from this - with a preferably approximately parallel alignment to the steering axis - of for example up to 50 mm, further for example up to 20 to 30 mm. Furthermore, the rope tangent to the geometric steering axis can optionally enclose an acute angle of a few degrees, for example 1 to 5 degrees.

In addition to the drive element driven by applied muscle power, one drive element or several drive elements can be driven by electric motors that are fixedly arranged in the front wheel. Such an electric motor can possibly act on the same drive element that can also be driven by muscle power. Furthermore, the electric motor can, for example, be rigidly connected to a shaft, for example a transmission shaft or output shaft, or alternatively act on a separate drive element via a separate shaft. With a plurality of drive elements, for example, such an electric motor can also be assigned to each drive element.

The electric motor advantageously has a recuperative effect.

An accumulator, in particular, which feeds the electric motor can also be arranged in the hub-free front wheel, but alternatively also in an area of the vehicle frame. When such an accumulator is arranged in the hub-free front wheel, it can be attached to one or more mounting parts of the front wheel and, if appropriate, with a corresponding design of the bracket encompassing the front wheel to prevent theft of the vehicle, it can be charged via this bracket.

In a cable pull that can be driven by muscle power, a tension sensor (DMS) can be provided in a further embodiment in the cable and / or in the deflection pulleys or the pulley mounts to control the electric motor.

The drive elements - moreover, preferably also the guide elements that may be provided - can be connected to the fixed mounting part or the fixed mounting parts of the front wheel. The mounting parts preferably offer the rotary mounting of these elements.

The steering axis of the front wheel can also enclose an acute angle of more than 15 degrees with a vertical line, for example an acute angle of 20 to 45 degrees, so that this results in favorable straight-line stability of the vehicle.

A height adjustment of the seat part can preferably be made possible parallel or approximately parallel - for example including an acute angle of a few degrees, further for example up to 1 degree, 2 degrees or 5 degrees - to the steering axis. This results in an ergonomically favorable alignment of the body to the pedal pedals and / or to the handlebar in every seat part height position. The desired height position of the seat part can preferably be fixed, for example as a result of clamping.

According to a possible embodiment, the handlebar can also be adjustable in height preferably along the steering axis of the front wheel and thus preferably parallel to the seat part.

In addition, the seat part can be displaced from a position of use into an entry or exit position in the direction of the rear wheel, with the displaced position in particular being preferably lockable. When the seat part is moved backwards, getting in and out is simplified. In the course of this linear displacement of the seat part, the selected seat part height position is preferably retained.

In particular, the use position of the seat part and the entry and exit position of the seat part can preferably be locked in place. This can also be used to ensure that, in a secured position of the vehicle, the seat part located in the getting-off position can only be released from the rest and moved back into the use position when the vehicle is properly started up by the authorized user. In the locked exit position of the seat part, the vehicle cannot be driven.

In addition, the vehicle can also have an electronic immobilizer for theft protection.

The weather protection that engages under the foot receptacle can, in a further embodiment, be continued as a floor protection under also the seat formation.

In addition, according to a preferred embodiment, the weather protection with respect to a side view towards the vehicle can be provided essentially completely closed, thus in particular offering weather protection from above, from the front, from below and from the rear. In addition, lateral weather protection can also be provided. This can be opened for getting on or off, for example in the manner of a roller blind.

The bicycle-like vehicle can be driven solely by muscle power. According to a preferred embodiment, an electric motor can be provided, in particular to support muscle power via a pedal drive.

The electric motor can, as is also preferred, be integrated in the front wheel, in particular in the area of the hub of the front wheel, as a so-called hub motor. For example, two electric motors can also be provided, for example one electric motor assigned to the front wheel and one electric motor assigned to the rear wheel. In addition, three or more electric motors can also be provided.

In this context, as is preferred, a gear hub for offering different ratios is also possible. Such a transmission can be integrated in the electric motor, for example in the form of an automatic transmission.

A preferably provided transmission can also be provided outside, for example, the front wheel hub. Furthermore, for example, such an arrangement can be provided by a conventional derailleur circuit known, for example, from bicycles.

Furthermore, a crank drive integrated in the front wheel can be combined with a transmission, possibly an automatic transmission, and an electric hub motor. This offers advantages in particular with regard to the overall length of the vehicle. The latter can be built correspondingly short (compact). The front wheel, which is positioned relatively close to the seat formation, also enables good vehicle handling.

The lean angle of the vehicle, ie the possible angle of inclination when driving through curves, is limited, among other things, by the arrangement of the pedal pedals for driving the vehicle using muscle power. Greater freedom from lean angles is possible, for example, by increasing the front wheel diameter, for example below Use of a 28 inch front wheel or larger. The front wheel can in principle be selected to be larger in diameter than the rear wheel. The tire cross-section or the tire diameter can also be increased for this purpose. In addition, the length of the pedal cranks can be reduced in the radial direction - based on the drive axle.

The diameter of the front wheel can for example be about 1.1 to 2 times, for example about 1.5 times the diameter of the rear wheel. In this connection it can be provided that the front wheel has a diameter of, for example, 26 inches or more and the rear wheel, for example, a diameter of 20 inches or less.

Another possibility for increasing the inclined position is an offset of the crank axis from the coaxial arrangement to the wheel axis, in particular an offset in the radial direction to the wheel axis while increasing the distance between the crank axis and the ground. In this way, a first translation stage can also be implemented.

With regard to the electric motor, it can optionally have different driving modes, such as an economy mode, for example. In such an economy mode, for example, the power consumption of a battery provided for driving the electric motor can be measured and optionally limited. In addition, an automatic transmission that may be provided can also be regulated via this.

In a further refinement, provided control electronics can be used, for example, to adapt the muscle power required to activate the supporting electric motor as a function of the constitution and / or age of the user. For example, for a less sporty and / or elderly person, a minimum muscle power to be supplied of, for example, 50 watts can be set, while for example, sporty people, a 200 watt limit can optionally be specified. It is also possible, for example, to adapt the torque to a desired, customary cadence using a teach-in process.

An evaluation of the calories consumed can also be carried out via the electronics. A user-friendly operator interface with the design of an operator panel, for example in the form of a touch screen, offers further advantages in handling the vehicle.

The steering can take place mechanically, for example via a handlebar or steering wheel to be operated by the user. The mechanical transmission can be given via a Bowden cable or a handlebar.

An electrical solution is also conceivable with regard to the steering, for which purpose, according to a possible embodiment, an electrically actuatable actuator can act, for example, on a steering lever of the wheel to be steered. Such an actuator can be remotely controlled, for example remotely controllable via a joystick-like control element. The command can be transmitted via a cable provided, but alternatively also wirelessly, for example as a result of radio transmission. In the latter case, the control element is provided with a corresponding transmitter and the actuator with an assignable receiver.

If a joystick is used, it can be operated continuously, whereby, for example, a shifting of the joystick in the direction of travel provides support from the electric motor in the direction of travel, while a shift of the joystick backwards preferably reduces the speed in the direction of travel front and / or a deceleration due to braking. Moving the joystick to the left or right preferably leads to a corresponding steering impulse. In order to offer sufficient support force, especially when pedaling, such a joystick is designed to be correspondingly stable, possibly partially rigid. For example, a lower joystick section can be rigid, on which hold and support is ensured, and an upper section can be elastic, possibly movable, in order to execute commands for drive motor and / or steering control. A corresponding load on the joystick to initiate a command can be detected, for example, using strain gauges or sensors.

In a further embodiment, a steering damper can also be provided for essentially centering the steered wheel. A turning in from a central position into one or the other steering direction thus preferably takes place against a restoring force of the steering damper.

In particular, the side member, and also possibly the entire frame of the vehicle, can consist of a metal material and / or a composite material. The side member or frame is preferably used centrally to accommodate all functional parts, in particular the steered and / or sprung wheels, the steering and the bearing mounts, the battery holder, the seat shape including safety and spring technology as well as the mounting of the weather protection and / or a roll bar provided.

In a further embodiment, the provided accumulator can optionally be displaceably arranged on the frame, in particular on the longitudinal member, in order to enable an optimal weight distribution. In this context, an integrated charger also proves to be advantageous.

In addition, with appropriate training, recuperation can be provided, for example when driving downhill, but also optionally when braking. Such energy recovery can in particular be made possible by arranging at least one hub motor, for example in the front wheel.

A balance sensor can also prove to be advantageous. Such a sensor can send signals to the steering gear and thus trigger steering in the opposite direction. In this way, the vehicle can be prevented from falling over, especially while driving.

A frame construction can be provided which carries the weather protection and spans the seat formation. The frame structure can be designed in the manner of a so-called roll bar and also assume the safety function of such a roll bar. The weather protection can be attached to the frame structure, if necessary detachable, so that the user can also selectively remove the weather protection, for example a roof-side section.

The frame structure can be stiffened in a front area, for example a protective pane, for absorbing bending stresses with struts directed transversely to the roll bars, for example.

The frame structure can encompass a wheel axle of the front wheel at a distance to the front with respect to the front wheel. Thus, the frame structure can extend forward beyond the foot receiving area or the pedal area, which pedal area can preferably result within the front wheel in a projection along the axis of rotation of the front wheel with respect to the circular path that may arise during actuation. It is preferably an overall or predominantly rigid frame construction, more preferably a lightweight construction.

In a further embodiment, a longitudinal member can be provided which is supported on the one hand on the axle of the front wheel and on the other hand on the axle of the rear wheel. For example, a wheelbase, that is to say the spacing of the geometric wheel axles of the front wheel and the rear wheel from one another in the direction of travel, can be set via the side member. The support, in particular on the steerable wheel, can take place indirectly, according to a possible embodiment, for example via a fork that grips the steerable wheel and can be pivotably mounted in or on the side member. In this regard, a one-arm fork can also be provided which, while supporting the steerable wheel, only flanks it on one side.

The frame structure can be connected to the longitudinal member on the one hand at the rear of the seat formation and on the other hand in front of the front wheel. In this regard, it can be a rigid connection. Alternatively, the connection can also be canceled by the user, if necessary using a tool, so that the vehicle can also be used without the frame structure or only with parts of the frame structure. The frame structure can accordingly also be designed to be removable.

Accordingly, when the vehicle is in use, the frame structure can preferably span the seat formation and the user sitting there, for example in an arc-like manner.

The connection between the longitudinal beam and the frame structure in front of the front wheel can be provided with the aid of a curved support arm extending upwards and forwards from the longitudinal beam. In one possible embodiment, this carrier arm can at the same time cover the running surface of the front wheel over a partial area of the circumference in the manner of a fender or carry such a protection. The girder boom can thus be part of the weather protection.

The frame construction and / or the weather protection can optionally have a swivel area for easier access to the vehicle. The weather protection can be part of the entire body or, alternatively, can be easily installed or removed using quick-release fasteners, so that driving with or without weather protection is possible.

In addition, the weather protection can be designed to be transparent to the user, especially in the field of vision. For example, a superhydrophobic and oleophobic coating can ensure a consistently good view in the field of vision of the weather protection.

The connection of the frame structure and / or the weather protection in the area of the front wheel can be fixed to the front axle due to the arrangement of the steering to the rear.

The connection of the frame structure and / or the weather protection in the rear area facing the rear wheel can be given to the seat formation, in particular in the area of the back part, for example as a result of bracing via ropes or rope-like means.

The weather protection, for example in the form of a plastic pane, can at the same time form the frame construction, for example in the manner of a roll bar. If a separate frame structure or a separate roll bar is arranged, this is preferably made of lightweight construction.

The vehicle can, as is also preferred, have a rigid frame, which is given in particular by the longitudinal beam, but also, if necessary, also by the frame construction. The front wheel and / or the rear wheel can be resiliently supported against the frame, in particular the side member, for example as a result of the arrangement and design of a sprung rocker bearing the respective wheel.

A suspension or damping, in particular in the area of the front wheel, can be achieved, for example, by arranging appropriate damping elements between the mounting parts and the fork. The strut-like mounting parts themselves can also be designed to be resilient. In addition, damping between the wheel, in particular the wheel rim with the wheel tire and the drive elements or guide elements can be achieved by a suitable material pairing.

Alternatively, the front wheel axle can be suspended from a rim of the front wheel by means of resilient support elements. Such a design can also be given with respect to the rear wheel axle in cooperation with the rim of the rear wheel. This reduces the unsprung masses. The suspension can optionally be provided solely by the proposed spring support of the rims, with which suspension can be achieved directly in the wheel.

The support elements can enable a noticeable resilience in the centimeter range or more, further for example up to 5 cm or more, further up to about 10 cm or more.

Furthermore, alternatively or in combination, the frame as a whole or in partial areas can also serve as a spring body, for example by forming the frame or the longitudinal member from a composite material.

An embodiment in which the seat formation can be displaced overall in the longitudinal direction of the vehicle has proven to be advantageous. This enables the sitting position to be adjusted relative to the foot receptacles, in particular to the pedal pedals, and accordingly an adjustment to the respective body size.

For this purpose, the seat formation can be displaceably arranged along the longitudinal beam. In this case, the seat part in particular, but also the entire seat formation, can furthermore be designed as a so-called oscillating saddle with force storage in the holder.

In addition, the entire seat formation can be designed in such a way that loads acting in the event of an accident are converted into kinetic energy that is gentle on the body. Thus, the seat formation, in particular the seat part, can be designed, for example, in the manner of a swing saddle. Measures can also be taken to enable force to be stored in the holder of the seat formation or of the seat part.

In addition, handles or a safety belt, for example in the form of a lap belt, can be attached to the seat formation or the longitudinal member, and if necessary to the frame structure. The seat formation can have an ergonomic seat geometry, for example in the form of a three-way adjustment. The seat formation preferably has a seat part with a back part, more preferably in addition a headrest and a crash protection. The individual seat molding parts can also be adjustable separately from one another and / or relative to one another.

The vehicle can be designed as a single-track vehicle with a front wheel and a rear wheel, alternatively as a three-track vehicle with one front wheel and two rear wheels, or further alternatively with two front wheels and one rear wheel. Regardless of the configuration, steering via the rear wheel or via the rear wheels is preferred.

In an embodiment with two rear wheels, these can be designed in such a way that, in particular, a spring stiffness of the curve inclination is permitted as a function of the speed (for example no inclination up to 6 km / h). On the one hand, this can serve as a starting aid, but is also suitable for avoiding cornering accidents, for example on a slippery road surface.

Furthermore, a tilt function can also be provided when two rear wheels are arranged. Support wheels or a support function can also be activated at a certain speed.

Even with a possible configuration with two front wheels, these can be designed to be inclined. In this case too, the steering is provided on the rear wheel in order to enable a rigid front structure.

The operation of the steering, brakes and, if necessary, gearshift or electric motor assistance can be provided via a joystick and / or a handlebar or a steering wheel. A joystick can for example be provided on the side of the seat formation.

The frame construction and / or the trailing arm can be made of metal and / or as a composite material in a simple and compact way and are used centrally to accommodate all functions, for example the inclusion of the wheels, the steering including bearing mounts, the battery holder, the seat shape including, if necessary, safety and spring technology , the holder of the weather protection or the frame construction.

The vehicle can also be designed to transport a second person or luggage. In particular, a storage space can be provided for transporting luggage, which can also be attached to the body, in particular to the frame structure and / or to the longitudinal beam, in a removable manner. The arrangement can further be given for example in the usual direction of travel behind the seat formation.

In addition, the conversion of such a vehicle to a cargo bike or the like is possible, whereby in the area of the front wheel an extension of the frame structure in the usual direction of travel can be given, which is supported at the end at a distance from the front wheel viewed in the direction of travel via a further support wheel. The expanded frame construction can carry a further storage space, which preferably has a height that can be overlooked by the user while driving in order to observe the route in front of the vehicle.

The diameter of the support wheel can be matched to the rear wheel of the vehicle, in any case smaller with regard to the diameter than the front wheel of the vehicle.

The support wheel can also be steerable, preferably synchronized with the rear wheel.

According to a preferred embodiment, such a load front can optionally be attached to or removed from the vehicle by the user. The attachment can be used to arrange, for example, a suitcase or the like or saddlebags.

In addition, the vehicle can have a mounting device, for example facing the rear wheel, on which, for example, luggage or cargo can be fastened by means of tensioning straps.

The front wheel can also be designed with a larger diameter than the rear wheel, the rear wheel being steerable. A possible steering via the rear wheel can prove to be particularly advantageous with regard to the desired maneuverability. A substantially rigid structure of the vehicle can result, particularly in the front area viewed in the direction of travel. The drive can, as further preferred, be provided in the area of the front wheel so that no interfering torques or relative movements occur with a steerable rear wheel. The rigid structure of the front structure offers favorable accommodation and storage of the crank drive and, at the same time, also a rigid accommodation and fastening of the weather protection.

The proposed vehicle preferably results in an approximately upright sitting position, as is also known, for example, when driving an automobile in the usual manner. In this case, a higher seating position than the known recumbent bikes is preferably given compared to the floor, so that a better overview is obtained when driving the vehicle.

Through a clever use of the installation space and the combination of functions, components and thus weight and costs are saved in the proposed vehicle.

With regard to the disclosure, the ranges or value ranges or multiple ranges specified above and below also include all intermediate values, in particular in 1/10 steps of the respective dimension, possibly also dimensionless. For example, the specification includes 5 to 50 Degree also the disclosure from 5.1 to 50 degrees, 5 to 49.9 degrees, 5.1 to 49.9 degrees, etc. This disclosure can be used on the one hand to limit a specified range limit from below and / or above, but alternatively or in addition serve to reveal one or more singular values from a respective specified range.

Figure list

• 1 in perspektivischer Darstellung ein Fahrzeug in einer ersten Ausführungsform;
• 2 die Seitenansicht gegen das Fahrzeug gemäß 1;
• 3 die Stirnansicht gegen das Fahrzeug;
• 4 eine perspektivische Detaildarstellung eines Vorderrad-Bereiches;
• 5 eine schematisch perspektivische, partiell geschnittene Darstellung des Vorderrad-Bereiches,
• 6 der Vorderrad-Bereich in Seitenansicht unter Fortlassung eines unteren Teils eines Witterungsschutzes;
• 7 den schematisch dargestellten Schnitt gemäß der Linie VII-VII in 6;
• 8 eine schematische Unteransicht des Vorderrad-Bereiches;
• 9 den schematisch dargestellten Schnitt gemäß der Linie IX-IX in 2;
• 10 den Vorderrad-Bereich in Seitenansicht, betreffend eine zweite Ausführungsform;
• 11 die schematisch perspektivische Darstellung des Vorderrad-Bereiches der Ausführungsform gemäß 10, unter Fortlassung eines unteren Teils des Witterungsschutzes;
• 12 eine weitere perspektivische Darstellung des Vorderrad-Bereiches unter Fortlassung eines unteren Teils des Witterungsschutzes, betreffend eine dritte Ausführungsform;
• 13 eine schematisch perspektivische Darstellung des Vorderrad-Antriebs der dritten Ausführungsform;
• 14 eine Seitenansicht gegen den Vorderrad-Bereich unter Fortlassung eines unteren Teils des Witterungsschutzes, betreffend eine vierte Ausfürhungsform;
• 15 eine der 14 im Wesentlichen entsprechende Darstellung, jedoch mit angeordnetem unteren Teil des Witterungsschutzes;
• 16 eine schematische Stirnansicht-Darstellung des Vorderrad-Antriebs der vierten Ausführungsform;
• 17 eine weitere schematische Detaildarstellung des Antriebs der vierten Ausführungsform;
• 18 eine schematisch perspektivische Detaildarstellung des Antriebs;
• 19 in perspektivischer Darstellung das Fahrzeug in einer weiteren Ausführungsform;
• 20 die Seitenansicht gegen das Fahrzeug der Ausführungsform gemäß 19;
• 21 eine der 20 im Wesentlichen entsprechende Darstellung, jedoch unterschiedliche Sitz- und/ oder Lenkerhöhen betreffend;
• 22 in perspektivischer Darstellung das Fahrzeug in einer weiteren Ausführungsform;
• 23 die Draufsicht auf das Fahrzeug der Ausführungsform gemäß 22;
• 24 in perspektivischer Darstellung das Fahrzeug in einer weiteren Ausführungsform;
• 25 das Fahrzeug gemäß 24 in einer weiteren perspektivischen Darstellung;
• 26 die Seitenansicht gegen das Fahrzeug;
• 27 die Stirnansicht gegen das Fahrzeug;
• 28 die Rückansicht gegen das Fahrzeug;
• 29 die Draufsicht auf das Fahrzeug;
• 30 die Unteransicht gegen das Fahrzeug;
• 31 eine Seitenansicht gemäß 26, jedoch unter Fortlassung eines unteren Teils eines Witterungsschutzes;
• 32 die Unteransicht gemäß 30, jedoch halbseitig ohne einen unteren Teil des Witterungsschutzes;
• 33 die Detailvergrößerung des Bereiches XXXIII in 26;
• 34 die Detailvergrößerung des Bereiches XXXIV in 26;
• 35 eine der 27 im Wesentlichen entsprechende Darstellung, betreffend eine maximale Kurvenneigung des Fahrzeugs;
• 36 eine schematische Schnittdarstellung, betreffend einen Pedalantrieb eines Vorderrades des Fahrzeugs;
• 37 eine der 26 entsprechende Darstellung, eine Weiterbildung betreffend;
• 38 eine der 24 entsprechende Darstellung, jedoch nach Anordnung eines optional vorsehbaren Stauraums an dem Fahrzeug;
• 39 in einer Seitenansicht das Fahrzeug in einer Konfiguration mit Stauraum und einem zusätzlichen Lastenvorbau;
• 40 die perspektivische Darstellung zu der Anordnung in 39.

The invention is explained below with reference to the accompanying drawing, which, however, merely represents exemplary embodiments. A part that is only explained with reference to one of the exemplary embodiments and is not replaced by another part in a further exemplary embodiment due to the particularity highlighted there, is thus also described for this further exemplary embodiment as an existing part in any case. The drawing shows:

• 1 a perspective illustration of a vehicle in a first embodiment;
• 2 the side view against the vehicle according to 1 ;
• 3 the front view against the vehicle;
• 4th a perspective detailed representation of a front wheel area;
• 5 a schematic perspective, partially cut view of the front wheel area,
• 6th the front wheel area in side view with the omission of a lower part of a weather protection;
• 7th the schematically illustrated section along the line VII-VII in 6th ;
• 8th a schematic bottom view of the front wheel area;
• 9 the schematically illustrated section along the line IX-IX in 2 ;
• 10 the front wheel area in side view, relating to a second embodiment;
• 11 the schematic perspective illustration of the front wheel area of the embodiment according to 10 , omitting a lower part of the weather protection;
• 12 a further perspective view of the front wheel area omitting a lower part of the weather protection, relating to a third embodiment;
• 13 a schematic perspective view of the front wheel drive of the third embodiment;
• 14th a side view against the front wheel area with the omission of a lower part of the weather protection, relating to a fourth Ausfürhungsform;
• 15th one of the 14th essentially the same illustration, but with the lower part of the weather protection arranged;
• 16 a schematic end view representation of the front wheel drive of the fourth embodiment;
• 17th a further schematic detailed representation of the drive of the fourth embodiment;
• 18th a schematic perspective detailed representation of the drive;
• 19th in a perspective view the vehicle in a further embodiment;
• 20th the side view against the vehicle of the embodiment according to 19th ;
• 21st one of the 20th essentially corresponding representation, but concerning different seat and / or handlebar heights;
• 22nd in a perspective view the vehicle in a further embodiment;
• 23 the top view of the vehicle according to the embodiment 22nd ;
• 24 in a perspective view the vehicle in a further embodiment;
• 25th the vehicle according to 24 in a further perspective illustration;
• 26th the side view against the vehicle;
• 27 the front view against the vehicle;
• 28 the rear view against the vehicle;
• 29 the top view of the vehicle;
• 30th the bottom view against the vehicle;
• 31 a side view according to 26th , but omitting a lower part of a weather protection;
• 32 the bottom view according to 30th , but on one side without a lower part of the weather protection;
• 33 the detail enlargement of the area XXXIII in 26th ;
• 34 the detail enlargement of the area XXXIV in 26th ;
• 35 one of the 27 essentially corresponding representation, relating to a maximum inclination of the vehicle in a curve;
• 36 a schematic sectional view relating to a pedal drive of a front wheel of the vehicle;
• 37 one of the 26th corresponding representation, relating to a further training;
• 38 one of the 24 corresponding representation, but after the arrangement of an optionally provided storage space on the vehicle;
• 39 in a side view the vehicle in a configuration with storage space and an additional load front end;
• 40 the perspective view of the arrangement in 39 .

Description of the embodiments

A vehicle is shown and described 1 , here as an example in the form of a single-track, bicycle-like vehicle 1 , with a front wheel 2 and a rear wheel 3 , essentially the front wheel 2 and the rear wheel 3 connecting frame 4th , continue with a seat formation 5 and one in particular the seat shape 5 at least partially spanning weather protection 6th .

The frame 4th is first and essentially formed by a with reference to a side view (see 2 ) essentially V -shaped base support 7th , which allows a deep-drawn entry for the user. On this basic carrier 7th are directly or indirectly the essential components of the vehicle 1 attached.

So is one end of the basic carrier 7th the rear wheel 3 in the area of the geometric wheel axis y around the wheel axle y rotatably supported. For this purpose, the base carrier 7th the rear wheel 3 include fork-like on both sides, including the base support 7th in the relevant area in the manner of an essentially - with reference to a normal usage position of the vehicle 1 - horizontally aligned fork 61 can be formed. Alternatively, a one-arm solution is also possible here, in which the base support 7th only with one arm on the side of the rear wheel 3 up to the wheel axle y is led.

Turned away from the rear wheel 3 can be the basic carrier 7th via a steering fork 62 on the front wheel 2 prop up. The connection of the steering fork 62 on the front wheel 2 can, as is also preferred, be reached via a fixed mounting part 63 , which is in the preferably hub-free area of the front wheel 2 is provided and one on the front wheel 2 acting drive element 64 wearing. It arises with regard to the front wheel 2 a geometric wheel axle x . Even with the steering fork 62 a one-arm solution can be given.

The wheel axles x and y from the front and rear wheel 2 , 3 are in particular in a basic alignment of the vehicle 1 aligned in the same direction to run straight.

The fork legs of the steering fork 62 go into the outer surface of the front wheel 2 spanning bridge section over from which a steering pin 10 further extends essentially in the direction of extension of the fork legs. This steering pin 10 is in an appropriately positioned and dimensioned receptacle 11 in a steering head section of the base support 7th rotatably recorded. Training from intake 11 and steering pin 10 can be given in the form of a steering head known from bicycles, so further, for example, having a steering head bearing.

The geometric steering axis z can become a vertical V through the wheel axle x an acute angle α of more than 15 degrees, for example about 20 to about 45 degrees, further for example about 30 to about 40 degrees. This results in a favorable caster of the front wheel 2 .

In the usual way, although not shown in detail, in this embodiment each wheel has a rim 12 with tires attached to it 13 on. The rims 12 are preferably via resilient support elements 14th with the front wheel axle x or the rear axle y connected, particularly to the front hub 15th or the rear hub 16 .

The support elements 14th can, as also shown, each with reference to a side view according to FIG 2 have an elongated oval shape with a longitudinal extent pointing essentially in the circumferential direction. The support on the rim 12 or at the hub 16 can be achieved in each case in the area of the curved longitudinal legs.

The support elements 14th act, for example, in the manner of an elliptical spring.

In the hub-free area of the front wheel 2 can, as preferred, three with reference to a side view according to FIG 2 Arched mounting parts 63 be provided, which in the area of their respective ends with the facing end of the in the circumferential direction of the front wheel 2 following bracket part 63 are preferably rigidly connected. Accordingly, there is preferably a triangular arrangement of the mounting parts with reference to the side view 63 .

The mounting parts are further preferred 63 Provided in pairs, with two mounting parts spaced from one another in the axial direction 63 in the area of their ends between them a drive and / or guide element 64 , 65 can take up fork-shaped.

In the connecting corner areas of the bracket parts 63 carry these freely around axes 66 each with a geometric axis of rotation pointing in the direction of the front wheel axis x is directed, rotatable, roller-like drive and / or guide elements 64 , 65 .

The drive and guide elements are preferred 64 , 65 evenly distributed over the circumference.

About the drive elements 64 and the guide elements 65 is a centering of the front wheel 2 , especially the rim 12 with the tires 13 , given in all dimensions (cf. 6th ). The drive and / or guide elements 64 , 65 for toothed or frictional torque transmission to the front wheel 2 or on the rim 12 with the tires 13 a central groove preferably running around in the circumferential direction 67 with a preferably wedge-shaped groove bottom, in which groove 67 the rim 12 with a radially inwardly protruding, circumferential drive web 68 engages positively and / or frictionally (cf. 7th ). This drive web can be used for favorable centering 68 be designed with inclined surfaces adapted to the wedge-shaped groove base.

The ring-shaped rim 12 with the tires 13 of the front wheel 2 accordingly runs freely around the fixed bracket parts 63 . This allows the hub-free space of the front wheel 2 be used in an advantageous manner, for example, to arrange the drive. In addition, the hub-free design increases the steering angle of the front wheel 2 enables.

The steering fork 62 is preferably rigid with one of the mounting parts 63 connected so that steering movements via the steering fork 62 on the front wheel 2 be transmitted.

A suspension in the area of the front wheel 2 can, for example, according to the arrangement of appropriate spring elements between the steering fork 62 and the mounting part attached thereto 63 or further, for example, by training the steering fork 62 be reached as a sprung steering fork. So can in the steering fork 62 for example helical springs or gas pressure springs can be arranged. The strut-like mounting parts 63 be designed to be resilient in itself, for example as a result of the arrangement of structural means and / or through a corresponding choice of material for the mounting parts 63 . Through a suitable material pairing with regard to the rim 12 , especially the drive web 68 the rim 12 , and the drive and / or guide element 64 , 65 a resilient damping can also be achieved between these directly interacting elements. Resilient, flexible materials can be used in this regard.

In addition, the front wheel can be suspended 2 through an adapted connection of the mounting parts 63 be reached among each other. For example, the connecting axis 66 in an elongated hole of one mounting part 63 or both mounting parts 63 relative to the bracket parts 63 be relocably added. The axis is by means of springs or spring-like elements 66 basically loaded towards a centered position. At in the front wheel 2 The bracket part lying in the direction of impact can exert impacts 63 Dodge along the elongated hole and essentially in the direction of the impact. The other bracket parts 63 can adjust to align.

In a rear area of the base support 7th can on the base support 7th one the tread of the rear wheel 3 partially covering apron-like cover 17th be provided.

As can be seen from the illustrations, with regard to the front wheel 2 one across from the rear wheel 3 larger diameter d intended. So can the diameter d of the front wheel 2 about 1.3 to 2 times, further about 1.5 or 1.6 times the diameter d 'of the rear wheel 3 (based on the outer diameter of the tires 13 ). According to one possible embodiment, the front wheel can 2 for example a diameter d of 28 inches have the rear wheel 3 a related diameter d 'of, for example, 18 inches, more preferably 29 inches (front wheel 2 ) and 20 inches (rear wheel 3 ).

The selected size ratio of the wheels to one another also results in favorable driving characteristics of the vehicle 1 . The relatively large front wheel 2 allows favorable curve slopes.

The seat shape 5 has an elongated mounting profile on the underside 69 on that in a pipe holder 70 of the basic carrier 7th is slidably mounted. Mounting profile 69 and tube holder 70 take with reference to a side view relative to a longitudinal direction L. of the vehicle 1 an acute angle of 30 to 60 degrees, further for example about 45 degrees, starting from a lower connection point of the tube holder 70 on the base support 7th rising backwards and upwards. A geometric center line of the pipe receptacle preferably extends 70 in parallel alignment to the steering axis z .

As a result of this configuration, the seat formation is 5 for ergonomic adjustment of the seat height overall with the mounting profile 69 in the tube holder 70 relocatable. Due to the displacement along an inclined plane, the displacement results in both a change in the seat height relative to the floor and a change in the distance in the longitudinal direction L. to a steering training 71 (cf. 21st ).

The selected height position of the seat shape 5 can preferably be locked or clamped.

In addition, the seat formation 5 according to a possible embodiment (cf. 20th ) also essentially in the longitudinal direction L. , regardless of the selected height position via the mounting profile 69 , from a usual, forward towards the front wheel 2 directed use position (see. For example 2 ), in one of the usual positions of use to the rear towards the rear wheel 3 distant position (cf. 20th ) be relocated. At least these end positions can, as is also preferred, be lockable. In the backward sliding position of the seat formation 5 is the vehicle 1 usually not mobile because the distance between the seat formation 5 and driver training 71 as well as a drive is too big.

So can in this alternative position of the seat formation 5 a lock that can only be released by an authorized person so that this training can serve as (part of) theft protection.

This can also be done only in the longitudinal direction L. of the vehicle 1 enabled sliding displacement of the seat shape 5 for easier entry and exit in or out of the vehicle 1 be used.

To enable this sliding displacement essentially in the longitudinal direction L. of the vehicle 1 For example, the mounting profile used for height adjustment can be a support plate 72 wear on which the seat formation 5 can be slidably mounted.

The seat shape 5 can be a seat bracket 18th have on which a seat part 21st with a preferably resiliently connected back part 19th is arranged. The seat part 21st is preferred together with the back 19th possibly limited by a stop around a geometric axis u pivotable on the seat bracket 19th held. The geometric axis u can extend in the same direction to the wheel axles x and y in a basic alignment of the vehicle 1 .

In the usual direction of travel r of the vehicle 1 viewed from the rear of the seat part 21st can the seat bracket 18th for example a baggage claim 101 train that are in the usual alignment of the seat formation 5 roof-like the rear wheel 3 can span.

The baggage claim 101 Can be used as a splash guard as part of the weather protection 6th be, one transverse to the longitudinal direction L. considered width G have a multiple, for example 2 to 5 times, the width of the cover viewed in the same direction 17th and / or the rear wheel 3 can correspond. In addition, as for example in 19th to recognize the width G the baggage claim 101 starting from the opposite of the usual direction of travel r facing end towards the seat bracket 18th continuously increase, up to a dimension that corresponds to the width of the seat part 21st correspond to or exceed this by a factor of 1.5 to 3, for example.

How further from 19th can be seen, the baggage claim 101 to under the seat part 21st extend and finally in an oblique upward and in the direction of travel r inclined cover 102 pass over in the direction of travel r viewed roughly with the seat part 21st concludes. Also the cover 102 can be part of the weather protection 6th his.

At a distance in the longitudinal direction L. of the vehicle 2 to the connection in the area of the axis u the seat shape can change 5 further about a feather 22nd on the seat bracket 18th , if necessary directly on the base support 7th , support, with which a shock-resilient training of the seat formation 5 can be achieved (compare 2 ).

The adjustability of the seat shape 5 longitudinal L. of the vehicle 1 and with regard to the seat height, the adjustment of the seat position for the user to his body size, so that he is in the found seat position ergonomically favorable on both sides of the front wheel 2 in lateral overlap to the front wheel 2 provided foot mounts 23 can reach.

The foot shots 23 can according to the 1 to 9 illustrated embodiment by pedal pedals 24 be given. These are on both sides of the front wheel 2 on a frame fixed to the frame 73 mounted in such a way that, when actuated accordingly, it is essentially parallel to the front wheel axis when driving straight ahead x aligned crank axle t can be moved like a crank.

The crank axle t can be used to increase the ground clearance, especially when cornering, along the steering axis z towards steering training 71 by an offset e be offset (see 6th ), which offset dimension e for example about 30 to 70 mm, further for example about 40 to 50 mm.

It is a drive of the vehicle 1 provided alone or in any case also by muscle power.

In a conventional crank drive according to the first embodiment, it is used as a pedal 24 trained foot support 23 via a shift route W. along a circular path with a center point in the pedal crank axis t given. The shift routes W. the one on both sides of the front wheel 2 arranged pedal pedals 24 extend in parallel planes of displacement K what levels of shift K preferably regardless of the steering position of the front wheel 2 are always aligned parallel to a vertical longitudinal center plane E. of the vehicle 1 , or space parallel to the non-steerable rear wheel in this embodiment 3 .

The storage of the foot recordings 23 can be given in the frame accordingly.

A level runs accordingly R. , in which the front wheel 2 extends, depending on the steering position of the front wheel 2 different from the relocation routes W. the foot recordings 23 or to the relocation levels K (cf. 8th ). The foot mounts remain independent of the steering angle 23 acted upon legs of the user in their approximately parallel, ergonomically favorable orientations.

As further in particular from the representation in 8th to recognize can the foot recordings 23 or pedal pedals 24 in the direction of extension of the crank axle t be arranged at a distance from each other that the front wheel 2 from a straight-ahead position in which the plane R. of the front wheel 2 with the longitudinal median plane E. of the vehicle 1 can coincide, a maximum steering angle with an angle out in both steering directions δ from each about 30 to 60 degrees, more preferably about 40 degrees, to the longitudinal center plane E. can take without the front wheel 2 with parts fixed to the frame, with parts of the weather protection 6th and / or the foot mounts 23 collided. The maximum steering angles are preferably limited by stops.

The pedal pedals 24 act via rotatable cranks 79 on one, the crank axle t centrally receiving transmission shaft 77 . This is on both sides of the front wheel 2 provided sections of the frame 73 pivoted.

The transmission wave 77 acts further in terms of transmission together with one in the steering axis z running output shaft 78 which in turn, in the manner of a vertical shaft, are geared with the roller-like drive element 64 cooperates (cf. 5 and 9 ).

The transmission between the output shaft 78 and drive element 64 can be achieved as a result of a frictional or positive connection, for example a gear connection. So the output shaft can continue 78 be designed at the end, for example, as a worm shaft, for interaction with one on the drive element 64 trained worm wheel (cf. 5 ).

Alternatively, a transmission of the displacement movement of the pedal pedals 24 for example via a joint cardan shaft on one in the steering axis z aligned vertical shaft be achieved.

The show an alternative crank drive 10 and 11 . The cranks 24 are plate-shaped foot mounts on the underside 23 arranged and essentially in alignment with the longitudinal center plane E. at the respective foot mount 23 shiftable guided like a rail (see arrow s in 11 ).

The plate-shaped foot mounts 23 are on the frame side, essentially in alignment with the steering axis z running guide rods 80 linearly guided, so that there is a linear displacement path for the user W. within the relocation level K results.

As a result of this training, a translational movement of the foot receptacles 23 into a rotational movement of the pedal pedals 24 arranged cranks 79 and over this the transmission wave 77 implemented.

The 12 and 13 show a further embodiment of the drive via muscle power, in which the pedal pedals 24 the foot recordings 23 each a linear displacement path W. essentially parallel to the steering axis z exhibit.

The plate-shaped pedal pedals are used for this 24 on the frame 73 along guide rods 80 guided. Between the guide bars 80 is preferably a spindle which is fixed in the axial direction but rotatable about its longitudinal axis 81 provided with a preferred coarse thread, which has a on the pedal 24 attached screw nut 82 in the course of the linear movement of the pedal 24 is drivable. The spindle 81 penetrates the nut 82 in the course of the pedal movement. As a result of this training, a translational movement of the pedal pedals 24 into a rotational movement of the spindle 81 implemented.

A gear coupling of the spindle 81 with the output shaft 78 is about means of transmission 83 given, each on the one hand on the spindle 81 attack and on the other hand on the output shaft 78 . This means of transmission 83 can, as shown by way of example, be toothed belts, alternatively chains, ropes or belts (cf. 12 and 13 ).

The means of transmission 83 preferably act indirectly with the interposition of a hub gear, for example 87 and / or a gear stage 84 with preferred freewheeling circuit.

The pedal pedals 24 Both sides can synchronize the displacement movements, for example via one, the hub-free area of the front wheel 2 assertive seesaw 94 be coupled with each other (cf. 16 ) which seesaw 94 further, for example, through ball head formations on the pedal pedals 24 can be connected.

You can also use the pedal pedals 24 in the manner of a swivel pedal on a lever 99 arranged and each in the shift plane K along a circular path of displacement W. be displaceable (see. Further embodiment in the 14th to 18th ), including the pedal pedals 24 or the levers 99 fixed on the frame side, parallel to the axes 66 the drive and / or guide elements 64 , 65 running axes 88 are pivotably mounted. The result is a comparatively large lever arm of up to 200 to 300 mm, preferably about 240 mm. This can result in a displacement swivel angle ε for example 40 to 75 degrees. A swivel angle has proven to be ergonomically favorable ε of about 60 degrees.

Every pedal 24 is via a pivot axis on the associated lever 99 in the area of the axis 88 remote end relative to the lever 99 pivotally mounted, the articulation axis having an arcuate slot 98 in the weather protection part 36 can enforce, so that only the pedal pedals 24 step outwards to operate.

The pedal movement triggered upon actuation is preferably via a cable, in particular a cable 89 and pulleys 90 having cable 91 on the drive element 64 transfer. Per side or per pedal 24 can be a rope 89 be provided. Alternatively, as is also preferred, two ropes, for example, can also be used 89 per pedal 24 take over the power transmission.

In one possible arrangement of an electric motor 25th to support the drive via muscle power, which electric motor 25th for example in the hub-free area of the front wheel 2 can be arranged, can be used to control the electric motor 25th in the rope 89 and / or on a holder of one of the pulleys 90 a tension sensor, for example in the form of a DMS, can be provided.

From the pedal 24 leads the rope tied at the end there 89 first in an upper area of the frame 73 , in which a pulley 90 with a room parallel to the pedal axis 88 running geometric axis of rotation. The rope 89 is over this upper pulley 90 guided and down towards the front wheel axis x directed.

The pulley 90 can on their axis 93 in addition to their free rotation around the axis 93 be linearly movable with limit stops on both sides.

Assigned to the geometrical front wheel axis x are two more on each side, in the direction of extension of the axis 93 the pulley 90 distanced pulleys 90 ' and 90 " provided with geometrical axes of rotation that are essentially parallel to the longitudinal center plane E. are aligned. About these other pulleys 90 ' and 90 " is a redirection of the rope 89 reached by about 180 degrees, so that the rope is after deflection on the pulley 90 " extends upward.

The approximately horizontally extending rope tangent 89 ' between the pulleys 90 ' and 90 " runs - with reference to an alignment of the front wheel plane R. in the direction of the median longitudinal plane E. of the vehicle 1 - preferably along the front wheel axis x , possibly with a small distance of, for example, up to 20 mm.

While the pulleys 90 , 90 ' and 90 " a cable pull 91 are preferably arranged on the frame side and thus fixed to the frame, is one of these cables 91 assigned rope reel 92 on which the pedal 24 remote end of the rope 89 is attached, set on the wheel side, for example on the steering fork 62 or on one of the bracket parts 63 . The axis of rotation 93 the rope reel 92 is aligned parallel to the front wheel axis x . The rope reels 92 both cables 91 of the drive swivel accordingly with the front wheel 2 when the steering is turned around the steering axis z .

The one between the pulley 90 " and rope reel 92 approximately vertically extending rope tangent 89 " is preferably in or near the steering axis z , for example with a maximum horizontal distance of up to 30 or 50 mm, more preferably about 10 to 20 mm, guided to only a slight movement of the rope 89 in a transverse direction to its longitudinal extension during steering movements of the front wheel 2 to allow.

As can be seen in particular from the representation in 18th can be seen between the rope reels 92 and the drive element 64 a gear stage 84 be provided. The rope reels 92 are preferably provided with a freewheel, more preferably with a double freewheel, as well as preferably with a spring-loaded return. The double freewheel, for example, offers the possibility of Pushing the vehicle backwards 1 without restrictions or damage.

Alternatively, the drive element can be driven directly 64 over the rope reels 92 possible.

In this embodiment, the pedal pedals 24 over the hub-free area of the front wheel 2 penetrating rocker that is preferably centrally mounted in its longitudinal extension 94 be coupled with each other. About this seesaw 94 ensures that the pedal pedals 24 be returned to their original position. When actuated, a coupled, counter-rotating movement takes place.

The attachment of the pedal 24 facing rope end can be provided with an overload protection device.

In addition, as shown schematically in 17th shown, by changing the attachment point of the rope end (dash-dotted line) on the pedal 24 the translation can be changed up to 500%. In this regard, a stepped or stepless translation can be given.

In the hub-free area of the front wheel 2 A transmission can be provided, but also, as is particularly preferred, an electric motor 25th to support the muscle force applied when the pedal is pressed. In a further embodiment, up to three electric motors can also be used 25th be provided, for example a drive and / or guide element 64 , 65 assigned.

The electric motor 25th can directly have a transmission gear or further, for example, in particular within the hub-free area of the front wheel 2 cooperate with such a transmission. A drive combination of pedal pedals can also be used 24 , Gearbox and electric motor 25th be given. Such a drive combination can, as is also preferred, in the hub-free area of the front wheel 2 be provided.

The power supply of the electric motor 25th preferably takes place via an accumulator 26th . This can also be inside the hub-free front wheel 2 , for example set on a bracket part 63 , be arranged.

The accumulator can also 26th alternatively, in the usual direction of travel r considered, for example behind the seat formation 5 on the side member 7th be attached. Also an arrangement of the accumulator 26th below the seat molding 5 can be provided.

As in particular also from the representations in the 1 to 3 as well as 19 to 23, is also a frame construction 27 as part of the framework 4th intended. Here, as also shown, there can be two arcuate shapes, transverse to the longitudinal direction L. of the vehicle 1 act mutually spaced provided pipe bends, which with reference to a side view according to 2 can lie in overlap when projected into a common vertical surface.

The arched frame parts 28 and 29 the frame construction 27 can, as is also preferred, via cross members 30th be connected to each other. These cross members 30th can further, as also preferred, in one of the front wheel 2 facing section of the frame structure 27 be provided, the cross member 30th according to the distance between the frame parts 28 and 29 Define in the front wheel area.

The cross members 30th can further, as preferred, to define the frame construction 27 on the frame 4th to serve. A carrier provided for this purpose 74 is one end with at least one cross member 30th connected and at the other end on one, the steering training 71 receiving boom of the fork mount 11 attached. Accordingly, there is an essentially rigid connection to the frame structure at the front 27 on the frame 4th .

The frame parts 28 and 29 the frame construction 27 the front wheel each extend laterally on the front wheel side 2 partially flanking and ending freely, ie without attachment in the area of the front wheel 2 at a distance a in the usual direction of travel r in front of the front wheel axle x . Each frame part runs from this end 28 , 29 curved upwards and backwards essentially towards the rear wheel 3 , here the seat shape 5 spanning at a distance, with the seat formation in one 5 directly spanning area can optionally set a reduced radius of curvature.

The weather protection 6th especially in which the seat formation 5 The spanning area can, as is also preferred, be aerodynamically favorably shaped, for example arched or swept in cross section.

At the rear, the roof-like section 95 the frame construction 27 via tension ropes 75 on the seat shape 5 , especially on the back 19th attached and so against the seat formation 5 be exhausted.

The carrier 74 can also be a between the tread of the front wheel 2 and that of the front wheel 2 facing area of the frame 4th arranged apron-like cover 35 carry. This cover is preferred 35 supplemented by the cheek-like front wheel 2 partially, especially in an upper and rear area of the front wheel 2 covering weather protection parts 36 , which are preferably also on the wearer 74 can be attached.

The steering of the front wheel 2 can be done in the usual way similar to steering a bicycle. The driver training can do this 71 a handlebar 76 - alternatively a steering wheel - have that rotatably with the steering fork 62 can be connected. For example, using handle-like controls 37 control commands can be transmitted in electronic form, for example via radio, but alternatively also via cable, for example to control the electric motor 25th .

Such as from 2 can be seen, forms the steering axis z not necessarily at the same time the handlebar axis of the handlebar 76 . Rather, this link axis can v for example at an acute angle to the steering axis z continue, for example, approximately vertically in the usual position of use.

Alternatively, the steering training can also be done, for example, on the frame structure 27 attached controls 37 , further for example essentially in the form of stick-like control elements (joystick), via which control commands can be transmitted in electronic form.

Via the controls 37 For example, braking commands can also be executed, preferably separately for the front wheel 2 and the rear wheel 3 . You can also use the controls 37 a control of the supporting electric motor 25th can be achieved. The controls have 37 , for example when designed as joy-stick-like operating elements, sufficient stability to be able to absorb supporting forces such as those that occur when pedaling, for example.

In a further embodiment, the control elements 37 also a steering, corresponding to a steering control of the front wheel 2 respectively.

This can be done near the steering axis z an actuator, for example in the form of a servomotor, can be provided which, for example, acts on one with the steering pin of the steering fork 62 non-rotatably connected boom can act. A return to the neutral position (straight-ahead) can take place automatically even without deliberately resetting via the control elements.

As further for example from the plan view in 23 can be seen lengthways L. of the vehicle 1 considered result in an overall approximately wedge-shaped outline, this in particular due to a starting from the connection of the frame parts 28 and 29 on the seat shape 5 in the usual direction of travel r divergent arrangement of the frame parts 28 and 29 each to the vertical longitudinal median plane E. of the vehicle 1 an acute angle β for example 5 to 15 degrees, further for example about 10 degrees.

The mentioned weather protection 6th may be arched plate-shaped along a substantial portion of the frame structure 27 extend. The weather protection 6th can initially be based on a ceiling area of the frame construction 27 , up to the front wheel 2 can extend further to the frame structure 27 be attached.

this section 40 of weather protection 6th can advantageously be designed to be transparent, particularly in the usual viewing area.

While the frame construction 27 preferably consists of a metal or composite material and the vehicle 1 protects the driver using a roll bar, the weather protection 6th in a further embodiment, for example, be made of a plastic material, wood or bamboo.

The section 40 of weather protection 6th can optionally merge with the cheek-shaped weather protection parts 36 and the cover 35 so that the front wheel 2 towards the seat shape 5 is essentially encapsulated.

Weather protection can also be used 6th , especially the weather protection parts 36 , over the front end of the frame structure 27 out to under the foot mount 23 or the pedal pedals 24 extend so that the foot intake 23 or the pedal pedals 24 over the entire shift W. of the weather protection 6th can also be undercut.

The weather protection 6th with the weather protection parts 36 offer a favorable protection of the driver against splash water on, for example, rain-wet road, as well as the section 40 of weather protection 6th cheap protection against rain etc.

In a further possible embodiment, the vehicle can 1 also at the rear in the area of the back sections on the frame part side 31 be provided with weather protection.

In particular the section 40 of weather protection 6th can be placed on the seat at about head height 21st seated user a joint or flexible area 55 exhibit. This allows the roof-side section to pivot relative to the section rigidly with the frame 4th connected section 40 enables. This offers the possibility of a combined height adjustment of the roof section 95 together with the height adjustment of the seat shape 5 (cf. 20th ).

A change in the position of the seat shape 5 can lead to an adjustment of the vehicle height H lead, with a shift in the seat shape.

The section 40 , possibly together with the roof section 95 , from the frame construction 27 be removed, for example by loosening the tension cables 75 on the seat shape 5 and a connection preferably designed as a quick release fastener 100 on the carrier 74 .

As further for example from the plan view in 23 to recognize can have a total length b of the vehicle 1 result, which are approximately 3 to 5 times, further approximately 3.5 to 4 times the width viewed across this c can correspond. For example, a length b from 150 to 200 cm, further for example 180 cm, given a width c for example 40 to 70 cm, further for example about 55 cm. This can also result in a favorable parking area that can be 1 m ² or less.

For (further) theft protection can be fork-proof, the front wheel 2 assigned to a bracket 96 be provided, which is preferably only destructively releasable with the steering fork 62 or with the front wheel 2 connected is.

The coat hanger 96 can for example to secure the vehicle 1 on a ground anchor 97 to serve. The bracket 96 furthermore have an opening that can only be locked and unlocked by an authorized person, for example by means of a key or code.

The bracket can advantageously 96 on a bracket part 63 of the front wheel 2 be attached, possibly also the accumulator 26th securing.

When training the bracket 96 with an electrical line the bracket can 96 also for connecting the vehicle 1 , especially the accumulator 26th , can be used at a charging station.

In addition to the bracket 96 can use the seat molding to prevent theft 5 be locked in the rear position as described. In addition or as an alternative, an electronic immobilizer can also be provided.

The frame 4th the further embodiment according to the 24 to 40 is initially and essentially formed by a, a basic support 7th forming side members. The essential components of the vehicle are also directly or indirectly on this 1 attached.

So is one end of the basic carrier 7th the front wheel 2 in the area of the geometric wheel axis x around the wheel axle x rotatably supported. For this purpose, the base carrier 7th the front wheel 2 include fork-like on both sides, including the base support 7th in the area concerned in the manner of a rigid fork 8th can be formed. Alternatively, a one-arm solution is also possible here, in which the base support 7th only with one arm on the side of the front wheel 2 up to the wheel axle x is led.

Turned away from the front wheel 2 can be the basic carrier 7th via a steering fork 9 on the rear wheel 3 prop up. The connection of the steering fork 9 on the rear wheel 3 can, as is also preferred, be achieved in the area of a related geometric wheel axis y . Even with the steering fork 9 a one-arm solution can be given.

The fork legs of the steering fork 9 go into the outer surface of the rear wheel 3 spanning bridge section over from which a steering pin 10 further extends essentially in the direction of extension of the fork legs. This steering pin 10 is in an appropriately positioned and dimensioned receptacle 11 in the basic carrier 7th rotatably recorded. Training from intake 11 and steering pin 10 can be given in the form of a steering head known from bicycles, so further, for example, having a steering head bearing.

The geometric steering axis z can become a vertical V through the wheel axle y an acute angle α from about 5 to 50 degrees or more, for example up to 60 degrees or up to 80 or 90 degrees, more preferably about 25 to 50 degrees. This results in a favorable trail of the rear wheel 3 .

In the usual way, the wheels can have a rim 12 with tires attached to it 13 exhibit. The rim 12 of the rear wheel 3 is preferred via resilient support elements 14th with the rear axle y connected, in particular with the rear wheel hub provided more preferably 16 .

The supporting elements acting in the manner of spokes 14th can each in the circumferential direction of the Rear wheel 3 viewed equally spaced from one another, the rear wheel in the illustrated embodiment 3 three such support elements 14th may have.

In an area between the rear wheel 3 and the facing underside of the side member 7th can for example on the steering fork 9 one the tread of the rear wheel 3 partially covering apron-like cover 17th be provided.

Due to the selected size ratio of the wheels (front wheel 2 larger in diameter than the rear wheel3 3) to each other also result in connection with the intended steering via the rear wheel 3 favorable driving characteristics of the vehicle 1 . The relatively large front wheel 2 allows favorable cornering inclinations, while the steering via the comparatively small diameter rear wheel 3 handling advantages, especially in terms of maneuverability.

On the frame 4th , especially on the base support 7th , is the seat shape 5 longitudinal L. of the vehicle 1 overall displaceable arranged. A seat holder can be used for this 18th be provided, for example, the side member 7th Includes shoe-like. On the seat bracket 18th can in particular consist of a back part 19th with a headrest 20th and a seat part 21st composing seat shape 5 possibly limited by a stop around a geometric axis u be pivoted. The geometric axis u can extend in the same direction to the wheel axles x and y in a basic alignment of the vehicle 1 .

The seat height can be adjusted by a separate height adjustment of the seat part 21st for example, adjusted to the body size or coupled with an adjustment of the back part for anatomically favorable adjustment 19th , for example a tilt adjustment.

The foot shots 23 can, as is preferred, with pedal pedals 24 be given. These are on both sides of the front wheel 2 positioned directly in the hub area in such a way that, when actuated accordingly, it moves around the front wheel axis x can be moved like a crank.

This can be done within the front hub 15th a transmission (not shown) may be provided, but also, as is particularly preferred, an electric motor 25th to support the muscle force applied when the pedal is pressed.

The electric motor, preferably designed as a hub motor 25th can have a transmission gear directly or further, for example, in particular within the front wheel hub 15th cooperate with such a transmission. A drive combination can also be used P from pedal cranks 24 , Transmissions, especially automatic transmissions 59 , and electric motor 60 be given. Such a drive combination P can, as also preferred, in the hub 58 of the front wheel 2 be provided.

The power supply of the electric motor 25th takes place via an accumulator arranged on the frame side 26th . This can according to the illustrated embodiment, in the usual direction of travel r viewed, behind the seat molding 5 on the side member 7th be attached. Also an arrangement of the accumulator 26th below the seat molding 5 can be provided (see dash-dotted representation in 26th or in 37 ).

Transmission lines can be inside the side member 7th towards the rigid on the frame 4th or on the side member 7th arranged front wheel 2 and to its front hub 15th be led.

As in particular also from the representation in 31 to see is also a frame construction 27 as part of the framework 4th intended. Here, as also shown, there can be two arcuate shapes, transverse to the longitudinal direction L. of the vehicle 1 act mutually spaced provided pipe bends, which with reference to a side view according to 26th can lie in overlap when projected into a common vertical surface.

At the rear end of the roof-like section of the frame structure 27 can the frame parts 28 and 29 merge into substantially straight back sections 31 in the direction of travel r viewed from behind the back 19th the seat shape 5 run and on the foot side in corresponding recordings 32 opening out at the end of the side member 7th trained Y-legs 33 of the side member 7th are attached (compare 34 ).

The one on the front wheel 2 facing area of the frame construction 27 is in front of the front wheel 2 on the side member 7th attached. As is also preferred, a curved support arm can be used for this purpose 34 be provided, the one end in a connection area of the rigid fork 8th for the front wheel 2 on the side member 7th with the side member 7th is connected and at the other end, for example, with a cross member 30th the frame construction 27 . The girder boom 34 one on the tread of the front wheel 2 have adapted curvature, corresponding to a curvature with a on the front wheel axis x referring radius.

The girder boom 34 can also be a carrier for one in particular between the tread of the front wheel 2 and that of the front wheel 2 facing surface of the girder boom 34 arranged apron-like cover 35 which, as is also preferred, can be supplemented by the cheek-like front wheel 2 partially, especially in an upper and rear area of the front wheel 2 covering weather protection parts 36 .

Via the controls 37 can be a steering, corresponding to a steering control of the rear wheel 3 respectively.

According to the in 34 embodiment shown near the steering axis z an actuator 38 , for example in the form of a servomotor, be provided, which is connected to the steering pin 10 the steering fork 9 non-rotatably connected boom 39 can work. A return to the neutral position (straight-ahead) can be done automatically without a conscious reset using the controls 37 respectively.

As further for example from the plan view in 29 or the bottom view in 30th to recognize, results in the longitudinal direction L. of the vehicle 1 considers an overall approximately wedge-shaped floor plan contour, in particular due to the connection to the side member 7th , especially on its Y-leg 33 , in the usual direction of travel r divergent arrangement of the frame parts 28 and 29 each to a vertical longitudinal median plane E. of the vehicle 1 an acute angle β for example 5 to 15 degrees, further for example about 10 degrees.

The mentioned weather protection 6th may be arched plate-shaped along a substantial portion of the frame structure 27 extend. The weather protection 6th can initially be based on a ceiling area of the frame construction 27 , up to the front wheel 2 can extend further to the frame structure 27 be attached.

this section 40 of weather protection 6th can advantageously be designed to be transparent, particularly in the usual viewing area.

The seat shape 5 spanning section 40 of weather protection 6th extends to form a wedge-shaped cutout 41 first and in particular up to the free ends of the frame parts 28 and 29 . Accordingly, they flank the cutout on both sides 41 remaining sections, the weather protection 6th the front wheel 2 .

For example, from the representation in 24 to recognize the front wheel kicks 2 , optionally together with a front end portion of the cover 35 freely to the front through the neckline 41 of weather protection 6th in front. Overall, with reference to a side view according to FIG 26th sickle-like free kick of the front wheel 2 about weather protection 6th also surrender.

The section 40 of weather protection 6th can, as also preferred, merge into the cheek-shaped weather protection parts in a sealing manner 36 and the cover 35 so that the front wheel 2 towards the seat shape 5 is essentially encapsulated.

Weather protection can also be used 6th , as also preferred, via the front-wheel-side end of the frame structure 27 out to under the foot mount 23 or the pedal pedals 24 extend so that the foot intake 23 or the pedal pedals 24 of the weather protection 6th can also be undercut. The weather protection can start from here 6th further to the rear end of the side member 7th in the area of the Y-leg 33 extend, with the formation of a soil protection 42 .

The soil protection 42 and the foot mount 23 underneath and in the direction of travel r forward in the transition to the section 40 of weather protection 6th covering protective shells 43 offer good protection for the driver against splashing water on, for example, rain-wet roads, as well as the protective shell 43 along with the section 40 of weather protection 6th cheap protection against rain etc.

The soil protection 42 shows according to the bottom view in 30th along the outwardly pointing longitudinal edge one in the direction of the longitudinal center plane E. directed return to the formation of a cutout 44 . This ensures that at least one leg of the user can be safely set down to support the vehicle 1 enabled when not in motion.

The protective shell 43 is further preferably designed so that it can also offer lateral protection from the outside. So show the two protective shells 43 one outside each during normal driving of the vehicle 1 wall facing upwards 45 on, however, taking into account the arrangement of the pedal pedals 24 allows the foot on the pedal to be moved out laterally.

In a further possible embodiment, the vehicle can 1 also at the rear in the area of the back sections on the frame part side 31 be provided with weather protection.

As shown in 35 the inclined position of the vehicle can be seen 1 , d .H. the possible inclination of the vehicle 1 when driving through a curve, using the pedal pedals 24 , in particular their range of motion, in addition, in particular by the pedal pedals 24 especially outwardly and downwardly covering protective shell 43 limited. It can be, as shown in 35 a lean angle γ from about 45 to 50 degrees to a vertical.

An increase in this angle γ is for example according to the arrangement of a larger-diameter front wheel 2 possible. In addition, however, as shown schematically in 36 shown, a shift in the geometric crank axis t relative to the geometrical front wheel axis x an increase in the lean angle γ result by the crank axle t with a further preferred parallel alignment to the front wheel axis x is brought into a position in which the crank axle t a greater distance to the ground on which the front wheel 2 rolls off, occupies, than the geometrical front wheel axis x . An offset of the pedal crank axis is preferred here t in the vertical direction to a position above the front wheel axis x .

The related crank pin 51 can, as is preferred, as well as the axis 52 of the front wheel 2 in or on the rigid fork 8th or a boom rigidly connected to it be rotatably received. The rotary motion of the pedal 24 around the geometric crank axis t can be attached to the front wheel via a (first) gearbox 2 or its axis 52 be transmitted. Is shown in 36 the transmission via two gears 53 and 54 that can have different outer diameters. Here is the gear 53 non-rotating with the crank pin 51 connected and the gear 54 rotatably with the axis 52 of the front wheel 2 .

Alternatively, the rotational movement of the crank pin can be transmitted 51 on the front wheel 2 also take place, for example, via a toothed belt.

37 FIG. 8 shows an embodiment based essentially on the embodiment of FIG 24 to 36 where the main difference is that the back section 31 of weather protection 6th or the frame construction 27 essentially rigid with the back part 19th is connected or by the back part 19th is formed.

The one from the back section 31 or from the back 19th outgoing arched area of the frame structure 27 (essentially the frame part 29 ) and weather protection 6th (Section 40 ) point approximately in a transition area from one of the front wheel axle x outgoing lower two-thirds section into one into the back section 31 transitional upper one-third section of a joint 55 on. The joint 55 is preferred above that in weather protection 6th formed transparent surface (disc) is provided. So in this embodiment with regard to weather protection 6th and / or the frame construction 27 each one rigid with the seat shape 5 connected section and a substantially rigid to the frame 4th , especially the side member 7th connected section.

Along the lengthways L. of the vehicle 1 towards the front wheel 2 sloping longitudinal member 7th is, according to a preferred embodiment, the seat formation 5 via the seat bracket 18th movable, especially for ergonomic adjustment of the sitting position for the user. A sliding shift of the seat shape 5 towards the front wheel 2 on the one hand results in a shortening of the distance to the front wheel 2 , especially on the pedal pedals 24 , furthermore, on the other hand, a reduction in the seat height relative to the floor level over which the vehicle is preferred 1 is moved.

In the course of this relocation of the seat shape 5 becomes the one with the seat shape 5 connected section 56 of weather protection 6th and / or the frame construction 27 around the joint 55 pivoted while the further (two-thirds) section 57 remains in its rigid orientation.

A change in the position of the seat shape 5 can lead to an adjustment of the vehicle height H lead, with a shift in the seat shape 5 towards the front wheel 2 also due to the associated lowering of the seat shape 5 to a reduction in the vehicle height H can lead (see Δh in 37 ).

38 essentially shows the vehicle 1 according to the 24 to 37 , here at the rear of the seat formation 5 in the area of the back sections 31 the frame construction 27 a storage space 46 is provided. This can be a container that can be optionally arranged and, for example, opened via a flap or door, which is located on the back sections 31 is determinable. In this regard, a connection that cannot be broken operationally by the user can also be provided.

The 39 and 40 show another configuration based on the vehicle 1 according to the 24 to 37 , in which a storage space according to 38 is provided. The However, the embodiments described below are also without such a storage space 46 possible.

So they show 39 and 40 further a load porch 47 , which in the area of the front wheel axle x on the vehicle 1 is preferably attached.

For this purpose, the load front 47 one around the front wheel axle if necessary x of the vehicle 1 swingable carrier 48 on, on the free one, the front wheel 2 far end a support wheel 49 is rotatably arranged. Its geometric axis of rotation is in the normal driving mode of the vehicle 1 preferably in the same direction as the wheel axles x and y of the wheels 2 and 3 . The carrier 48 can also be rigid with the frame 4th be connected, for example in the form of a protruding strut.

On the carrier 48 can be an additional container to provide additional storage space 50 be attached, the support wheel 49 According to the embodiment shown, the front side over a partial circumference from which the storage space 50 forming container can escape.

The support wheel 49 can be a suspension according to the wheels 2 and 3 have, according to support elements 14th .

Next can the support wheel 49 be designed to be steerable, in this regard preferably a remote-controlled electric steering according to the rear wheel steering of the vehicle 1 can be provided, which continues with the steering of the rear wheel 3 of the vehicle 1 is preferably synchronized. Rear wheel 3 and support wheel 49 can preferably be turned in opposite directions to enable a tight curve radius.

The support wheel 49 is chosen to be smaller in diameter than the front wheel 2 of the vehicle 1 , can have an outside diameter that is equal to the diameter d 'of the rear wheel 3 can essentially correspond.

In addition, the support wheel 49 in addition to being rotatable about an axis parallel to the wheel axles x and y also, for example, for steerability in a longitudinal direction L. aligned axis be tiltable, in addition, optionally be designed spherical.

The above explanations serve to explain the inventions covered by the application as a whole, which at least further develop the state of the art at least through the following combinations of features, whereby two, more or all of these combinations of features can also be combined, namely:

A vehicle 1 , which is characterized in that the displacement path W. of the pedal 24 regardless of a steering position of the front wheel 2 is such a level R. , in which the front wheel 2 extends, depending on the steering position, differently from the displacement path W. runs.

A vehicle 1 , which is characterized in that a fork-proof bracket 96 is provided that the front wheel 2 grasped at the front and only detachable with the fork in a destructive manner 62 is connected, the bracket 96 has a lockable opening for securing the vehicle 1 for example on a ground anchor 97 .

A vehicle 1 , which is characterized in that in lateral overlap with the front wheel 2 a foot shot 23 is formed and that the weather protection 6th the foot recording 23 reaches under, and / or, preferably, that the foot mount 23 by pedal pedals 24 given is.

A vehicle that is characterized in that the front wheel 2 is designed as a hubless wheel, with a drive element acting on the wheel 64 .

A vehicle that is characterized in that the pedal 24 can be moved linearly or on a circular path.

A vehicle that is characterized in that the pedal 24 on one relative to the front wheel 2 fixed transmission shaft 77 acts and that the transmission wave 77 with one in the steering axis z of the front wheel 2 running output shaft 78 cooperates in terms of gear.

A vehicle that is characterized in that the transmission shaft 77 offset to a geometric axis of rotation x of the front wheel 2 runs.

A vehicle, which is characterized in that the output shaft 78 gear-wise with the drive element 64 cooperates.

A vehicle, which is characterized in that a fixed mounting part is inside the wheel 63 is formed, relative to which the wheel rotates.

A vehicle, which is characterized in that the mounting part 63 with the handlebar to be operated by the user 71 connected is.

A vehicle, which is characterized in that with a linear movement of the pedal 24 the pedal force on an axially fixed spindle 81 is transferable from which via a gear coupling the force on the output shaft 78 is transferable.

A vehicle, which is characterized in that the pedal movement by means of a rope 82 and pulleys 90 having cable pull 91 on the drive element 64 is transferable.

A vehicle, which is characterized in that a portion of the cable 91 essentially along the geometric axis of rotation x of the front wheel 2 and / or along the steering axis z extends.

A vehicle which is characterized in that, in addition to the drive element driven by applied muscle power 64 one or more drive elements 64 about stuck in the front wheel 2 arranged electric motors 25th are driven.

A vehicle, which is characterized in that the drive elements 64 with the fixed part of the front wheel 2 are connected.

A vehicle that is characterized in that the steering axle z with a vertical V an acute angle α of more than 15 degrees and that includes a height adjustment of the seat part 21st parallel or approximately parallel to the steering axis z is made possible.

A vehicle, which is characterized in that the seat part 21st from a use position to an entry or exit position in the direction of the rear wheel 3 is displaceable, wherein the displaced position can be locked.

All of the features disclosed are essential to the invention (individually, but also in combination with one another). The disclosure of the application hereby also fully includes the disclosure content of the associated / attached priority documents (copy of the previous application), also for the purpose of including features of these documents in the claims of the present application. The subclaims characterize, even without the features of a referenced claim, with their features independent inventive developments of the prior art, in particular in order to make divisional applications on the basis of these claims. The invention specified in each claim can additionally have one or more of the features provided in the above description, in particular provided with reference numbers and / or specified in the list of reference numbers. The invention also relates to design forms in which some of the features mentioned in the above description are not implemented, in particular if they are recognizable for the respective purpose or can be replaced by other technically equivalent means.

List of reference symbols

1

vehicle

2

Front wheel

3

Rear wheel

4th

frame

5

Seat shape

6

Weather protection

7th

Basic carrier

8th

Rigid fork

9

Steering fork

10

Steering pin

11

admission

12

rim

13

Tires

14th

Support element

15th

Front hub

16

Rear hub

17th

cover

18th

Seat bracket

19th

Back part

20th

headrest

21st

Seat part

22nd

feather

23

Foot mount

24

Pedal

25th

Electric motor

26th

accumulator

27

Frame construction

28

Frame part

29

Frame part

30th

Cross member

31

Back section

32

admission

33

Y-leg

34

Girder boom

35

cover

36

Weather protection part

37

Control element

38

Actuator

39

boom

40

section

41

Cutout

42

Soil protection

43

Protective shell

44

Cutout

45

Wall

46

Storage space

47

Load front end

48

carrier

49

Support wheel

50

Storage space

51

Crank pin

52

axis

53

gear

54

gear

55

joint

56

section

57

section

58

hub

59

automatic transmission

60

Electric motor

61

fork

62

Steering fork

63

Bracket part

64

Drive element

65

Guide element

66

axis

67

Groove

68

Drive web

69

Mounting profile

70

Tube holder

71

Steering training

72

Support plate

73

frame

74

carrier

75

Tension rope

76

Handlebar

77

Transmission wave

78

Output shaft

79

crank

80

Guide rod

81

spindle

82

Screw nut

83

Means of transmission

84

Gear stage

85

Worm shaft

86

Worm wheel

87

Hub gear

88

axis

89

rope

89 '

Rope tangent

89 "

Rope tangent

90

Pulley

90 '

Pulley

90 "

Pulley

91

Cable

92

Rope reel

93

axis

94

Seesaw

95

Roof section

96

hanger

97

Ground anchor

98

slot

99

lever

100

connection

101

Baggage reception

102

cover

a

distance

b

length

c

width

d

diameter

d '

diameter

e

Offset

G

width

H

Vehicle height

r

Direction of travel

s

arrow

t

Crank axle

u

axis

v

Handlebar axle

x

Front axle

y

Rear axle

z

Steering axle

E.

Longitudinal median plane

K

Shift level

L.

Longitudinal direction

P

Drive combination

R.

level

V

vertical

W.

Shift route

α

angle

β

angle

γ

angle

δ

angle

ε

angle

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 4319585 A1 [0007]

Claims (13)

Bicycle-like vehicle (1), which can also be driven by the muscle power of a user, with a handlebar (71), a seat part (21), a front wheel (2) and a rear wheel (3), the front wheel (2) being steerable and the drive directly drives the front wheel (2) by muscle power, the muscle power being applied to a pedal (24) that can be displaced on a displacement path (W), characterized in that the displacement path (W) of the pedal pedal (24) is independent of a steering position of the front wheel (2) so that a plane (R) in which the front wheel (2) extends extends differently from the displacement path (W) depending on the steering position. Bicycle-like vehicle (1), which can also be driven by the muscle power of a user, with a handlebar (71), a seat part (21), a front wheel (2) and a rear wheel (3), the front wheel (2) being steerable and the drive directly drives the front wheel (2) through muscle power, further with a fork (62) in which the front wheel (2) is mounted, or the vehicle after Claim 1 , characterized in that a fork-fixed bracket (96) is provided which engages around the front wheel (2) and is only detachably connected to the fork (62) in a destructive manner, the bracket (96) having a lockable opening to secure the vehicle (1) for example on a ground anchor (97). Bicycle-like vehicle (1), which can also be driven by muscle power, with a front wheel (2) and a rear wheel (3), one of the wheels (2, 3) being steerable, further with a seat formation (5) having a back part (19) and a seat part (21), wherein a weather protection (6) is also provided, or vehicle according to one of the preceding claims, characterized in that a foot receptacle (23) is formed in lateral overlap with the front wheel (2) and that the weather protection (6) engages under the foot receptacle (23), and / or, preferably, that the foot receptacle (23) is provided by pedal pedals (24). Vehicle according to one of the preceding claims, characterized in that the front wheel (2) is designed as a hubless wheel, with a drive element (64) acting on the wheel. Vehicle according to one of the preceding claims, characterized in that the pedal (24) can be moved linearly or on a circular path, and / or, preferably, that the pedal (24) is connected to a transmission shaft (77) which is fixed relative to the front wheel (2). acts and that the transmission shaft (77) cooperates with an output shaft (78) running in the steering axis (z) of the front wheel (2) as a transmission, and / or, preferably, that the transmission shaft (77) offset to a geometric axis of rotation (x) of the Front wheel (2) runs. Vehicle according to one of the preceding claims, characterized in that the output shaft (78) cooperates with the drive element (64) in terms of transmission. Vehicle according to one of the preceding claims, characterized in that a fixed mounting part (63) is formed inside the wheel, relative to which the wheel rotates, and / or, preferably, that the mounting part (63) with the one to be operated by the user Handlebar (71) is connected. Vehicle according to one of the preceding claims, characterized in that with a linear movement of the pedal (24) the pedal force can be transmitted to an axially fixed spindle (81), from which the force can be transmitted to the output shaft (78) via a gear coupling. Vehicle according to one of the preceding claims, characterized in that the pedal movement can be transmitted to the drive element (64) by means of a cable (91) having a cable (82) and pulleys (90), and / or, preferably, that a section of the cable (91) extends essentially along the geometric axis of rotation (x) of the front wheel (2) and / or along the steering axis (z). Vehicle according to one of the preceding claims, characterized in that in addition to the drive element (64) driven by applied muscle power, one or more drive elements (64) are driven by electric motors (25) fixedly arranged in the front wheel (2), and / or, preferably that the drive elements (64) are connected to the fixed part of the front wheel (2). Vehicle according to one of the preceding claims, characterized in that the steering axis (z) with a vertical (V) encloses an acute angle (α) of more than 15 ° and that a height adjustment of the seat part (21) parallel or approximately parallel to the steering axis (z) is enabled. Vehicle according to one of the preceding claims, characterized in that the seat part (21) can be displaced from a use position into an entry or exit position in the direction of the rear wheel (3), the displaced position being lockable. Vehicle, characterized by one or more of the characterizing features of one of the preceding claims.

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