WO2000078598A1

WO2000078598A1 - Bicycle

Info

Publication number: WO2000078598A1
Application number: PCT/EP2000/005626
Authority: WO
Inventors: Andreas LÜBECK; Wolfgang Tofing
Original assignee: Luebeck Andreas; Wolfgang Tofing
Priority date: 1999-06-18
Filing date: 2000-06-19
Publication date: 2000-12-28
Also published as: DE19927996A1; AU5815900A

Abstract

The invention relates to a bicycle with a frame (2) that comprises a frame main tube (3) and a seat tube (4) and a pedal spindle (5). The aim of the invention is to simplify the production of such bicycles. To this end, the frame main tube is configured as one piece with the seat tube and extends below the pedal spindle.

Description

bicycle

The present invention relates to a bicycle having a frame having a frame main tube and a seat tube, and a bottom bracket

Such bicycles are generally known from the prior art. The bottom bracket is mostly accommodated in a tube section and the frame main tube and the seat tube are soldered or welded to this tube section. Before the soldering or welding, the frame main tube and the seat tube must first be cut accordingly in order to be adjust the curvature of the pipe section After welding or soldering, the seat tube and the frame main pipe have to be aligned again due to the thermal stresses that occur during welding or soldering. The manufacture of bicycles is therefore quite complex

The object of the invention is therefore to simplify the manufacture of bicycles of the type mentioned

The object is achieved in that the main frame tube is integrally formed with the seat tube and is carried out under the bottom bracket

This solution is simple and has the advantage that several pipes do not have to be welded to one another. Instead, the frame can be formed by a bending process that is much easier to master, in which a pipe is bent essentially V-shaped around the seat tube and the main frame tube The bottom bracket can then be arranged in the area of the bend between the main frame tube and the seat tube. The bicycles according to the invention make it much easier to manufacture bicycles due to the use of easier-to-use manufacturing processes and the smaller number of components due to the one-piece seat tube and main frame tube In an advantageous development of the invention, the saddle tube can have a transport container. Such a transport container can be used to store things such as tools or the like. If the transport container is essentially tubular and is formed by the saddle tube itself, the Transport containers can be made with the seat tube

The construction can also be simplified if a saddle holder connected to the saddle tube is provided on the saddle tube. As a result, the saddle tube can have a double function, namely trimming the saddle on the one hand and forming a transport container on the other

It can prove to be advantageous if the saddle bracket is designed as a saddle bracket tube. Then conventional saddle supports from cyclists can be used.However, it is also possible to provide a saddle bracket that is not suitable for receiving tubular saddle supports. Instead, saddle supports can be fitted with a Be provided adapter piece through which the saddle attaches to the seat tube

It can also prove to be advantageous if the transport container has a removable cover. Valuables can also be stowed in the transport container. Since the transport container is formed integrally with the seat tube, it is difficult to close the transport container provided with a closed cover manipulate Compared to conventional solutions in which small transport containers were screwed to the frame, the new transport container can be much safer

It is also noted that it is also possible to provide a transport container which is formed integrally with the seat tube on bicycles in which the connection of the seat tube and main frame tube is carried out in a known manner by soldering or welding

In an advantageous development of the invention, at least one chain stay can be provided, which also supports the frame tube and the seat tube above the bottom bracket. connecting each other With such a chain stay, the stiffness of the frame can be increased considerably again

It can prove to be advantageous if the chain stay extends straight at least in sections at least between the seat tube and the frame tube. This makes it possible to carry out attachments to the frame in a simple manner

In particular, it can prove to be advantageous if the chain stay extends horizontally in the straight section. This section can also be used, for example, as a shelf

It can also prove to be advantageous if the entire chain stay extends straight. This straight extension allows the chain stay to be produced in a particularly simple manner. This eliminates the need to bend the strut tube used to manufacture the chain stay

It can also prove to be advantageous if the chainstay is guided around the main frame tube and on both sides of the seat tube.This increases the strength of the frame.As chain strut sections are provided on both sides of the seat tube and the main frame tube, attachments can be attached Simplify additionally Such a chainstay can also be produced from a straight strut tube, which is only bent through 180 ° in the area of the main frame tube. Alternatively, it is also conceivable to arrange two chainstays on opposite sides of the seat tube. This does indeed increase the number of components required increased, namely two strut tubes, instead of one strut tube, on the other hand, the bending process is omitted and only straight strut tubes are required

It is noted that the design of the chainstay can also be applied to bicycles in which the frame main tube and the seat tube are soldered or welded in a conventional manner. Even with such bicycles, the design of the chainstay or chainstays described above allows a noticeable increase in Establish the strength of the frame In an advantageous development of the invention, the bicycle can have a belt drive. Such a belt drive is very quiet and almost maintenance-free

In particular when using a belt drive, it can prove to be advantageous if stop ends are provided for mounting a rear axle of the bicycle, which extend essentially vertically. With such a design of the stop ends, the rear wheel can be mounted with the rear axle in a vertical direction. which run essentially horizontally, eliminating the need for additional adjustment work when assembling the rear wheel. The stop ends can already be designed so precisely that simply attaching the rear axle is already aligned relative to the frame. In addition, a belt tensioner can be used, but in the case of bicycles with chain drive a separate chain tensioner may be provided

Particularly simple stop ends can be realized if the stop ends have receptacles in which the rear axle can be inserted, the receptacles being open at the bottom. Especially for cyclists with belt drives, the rear wheel can be removed much more easily. It is also not necessary before removing the First remove the belt or chain from the rear sprockets or belt wheels before the rear wheel is pulled horizontally backwards. As a result, the design of the stop ends according to the invention is also suitable for bicycles in which the frame main tube and the seat tube are soldered or welded in a conventional manner becomes

In an advantageous development of the invention, the bicycle can have a hub gear on the rear wheel, which is provided with an anchor, and a receiving tab can be provided on the frame of the bicycle, into which the anchor can be inserted, the direction of insertion of the anchor into the receiving tab parallel to the direction of insertion The rear axle runs into the stop ends. Compared to conventional solutions with hub gears, assembly is considerably easier. Usually, the anchor was usually attached to the chain with a hose clamp-like attachment. tenstrebe set However, this setting could only be made after mounting the rear wheel. In the embodiment according to the invention, the anchor can now be mounted simultaneously with the attachment of the rear axle to the stop ends. In addition, by inserting the anchor into the bracket, the torque can be applied to the frame during a braking operation be initiated, since the tab is preferably soldered or welded to the frame. The design of the tab for receiving the anchor can also be used with conventional bicycles

In an advantageous development of the invention, at least one seat stay can be provided, which is connected to the chain stay and the seat tube. Such a seat stay can additionally increase the strength of the frame

It can be advantageous if the saddle strut has the stop end. Since the saddle strut is inclined significantly more than the horizontal strut than the chain strut and the stop end advantageously extends in the vertical direction, the saddle strut can be provided with the stop ends more easily than that Chainstay because the necessary bending processes are easier to carry out

It can also prove to be advantageous if the seat stay has the tab. Because of the proximity to the stop ends, the frame can be made more compact

In order to additionally increase the strength of the frame, the saddle strut can be connected both to the transport container and to the saddle holder. This also further increases the strength of the frame

It can also prove to be advantageous if two saddle struts on opposite sides of the transport container are provided. This also increases the strength

Alternatively, a seat stay can be provided, which is guided around the transport container and / or the seat holder, the free ends being guided past the rear wheel on both sides. Similar to the chain stay according to the invention, the The saddle strut can then be made from a single strut tube that is bent through 180 ° in the area of the transport container or the saddle holder. In this way, the number of components required can be reduced and the manufacture can be simplified. At the same time, the strength of the frame can be increased

It should be noted that the design of the seat stays can also be used for conventional bicycles

In an advantageous development of the invention, connecting means for detachably attaching a luggage carrier can be provided on the frame of the bicycle. This allows the bicycle to be used more universally

It can be advantageous here if the connecting means are formed by latching devices, wherein pins and receptacles that fit into one another are provided on the frame and on the luggage carrier. This makes it significantly easier to mount the luggage carrier on the frame

It can be advantageous if the receptacles are provided on the frame and the pegs are provided on the luggage rack. When the luggage carrier is not used, protruding pegs on the frame can be avoided. Also, receptacles in the tubes of the frame can be realized more easily than pegs prove favorable if at least one of the receptacles is arranged on the saddle strut Then the luggage carrier can be mounted in a particularly simple manner. It can also be expedient if at least one of the receptacles is arranged on the seat tube or the saddle holder. This enables a stable fastening of the luggage carrier realize on the frame

The design of the luggage rack with frame-fixed receptacles is also suitable for conventional bicycles. These frame-fixed receptacles make it possible to implement a modular structure of the bicycle

In an advantageous development of the invention, the bicycle can charge an electric motor and a power supply source, preferably a rechargeable battery. point Then the bike is particularly suitable for use in mountainous regions

It can be advantageous if the electric motor can be detachably attached to the chain strut (s) between the seat tube and the main frame tube.As a result of the detachable attachment of the electric motor, the bike can be used either as a pure bike without drive or as a bike with auxiliary drive, namely the electric motor The bike can therefore be used universally.It also makes it possible to retrofit the electric motor at a later point in time.The bike can be operated as a normal bike as long as the electric motor has not been retrofitted.This makes it easier for people who first buy the bike Shrinking the high purchase price of a bicycle with an electric motor Through the detachable attachment, the bicycle can initially be purchased as a normal bicycle and only later will the expenditure for the electric motor become necessary. By attaching the electric motor between the seat tube and the frame main tube, you get a special one Space-saving arrangement of the electric motor This also results in a great proximity to the bottom bracket, so that the electric motor can be coupled to the bottom bracket in a simple manner. Because the bottom bracket is accommodated in the frame carried out under the bottom bracket, we have essentially free access to the bottom bracket Electric motor ensured

It can be advantageous if the electric motor is connected to the bottom bracket by a belt or chain drive.This way, a particularly simple transmission of power between the electric motor and the belt drive or chain drive of the bicycle can be achieved. The electric motor can be above or below the Chain stay to be arranged

In an advantageous development of the invention, the power supply source can be plugged into the transport container. In this way, the storage location of the power supply source can be formed integrally with the frame of the bicycle. Furthermore, the power supply source can be stored in a very space-saving manner. It proves to be advantageous if the power supply source, preferably a rechargeable battery is essentially rod-shaped, its outer diameter essentially corresponds to the inside diameter of the transport container It can be advantageous if a plug connection is provided between the bicycle and the power supply source, for separable electrical connection of the electric motor to the power supply source. In particular in connection with the design of the rod-shaped power supply source, this can then be done in a simple manner replace or remove it from the transport container, for example to connect it to a charger. Simple replacement also allows operation with multiple power sources, one of which is charged while the other is in operation

The arrangement of the power supply source and the design of the power supply source is also suitable for conventional bicycles

In an advantageous development of the invention, the power supply source can also be used to at least temporarily supply lighting to the bicycle. When using a dynamo, the light can then be supplied, for example, when the bicycle is stationary, by the power supply source. It is also conceivable to supply the lighting entirely via the power supply source Then the driving resistance of the bicycle can be significantly reduced while driving and when operating a dynamo. Especially in urban areas with short distances, the capacity of the power supply source can be sufficient for this

An on-board computer of the bicycle can also be operated with the power supply source. In this way, the maintenance effort of the bicycle can be reduced. It is no longer necessary to check whether the batteries of the on-board computer are sufficiently charged

Operating the lighting and the on-board computer in this way is also suitable for conventional bicycles

In an advantageous development of the invention, the bicycle can have a cable harness with which the power supply source can be connected to the electric motor and / or the lighting and / or the on-board computer as a central power supply This also simplifies the operation of the bicycle. It is no longer necessary to separately use batteries for the lighting and the on-board computer. Instead, the power can now be provided centrally via the power supply source. By using a wiring harness, the manufacture of the bicycle can be simplified This means that preparation for different electricity consumers takes place. These electricity consumers do not initially have to be attached to the bicycle, but can be mounted at any time and connected to the cable guide prepared by the cable harness

It can also prove to be advantageous if the cable harness is at least partially accommodated in the main frame tube. This means that manipulation of the cable harness can be effectively avoided. In addition, no additional guides for the cable harness are required, so that the manufacture of the bicycle can also be simplified

Such a wiring harness can also be used in conventional bicycles in which the main frame tube and the seat tube are not formed in one piece

In an advantageous development of the invention, the on-board computer and at least one front light can be accommodated in a common dashboard housing. Such a dashboard housing enables the unit comprising the on-board computer and light to be preassembled. This allows the bicycle manufacturing processes to be carried out in parallel. The dashboard housing with on-board computer and lighting can be used, for example Delivered pre-assembled Such a valve body can of course also be mounted on conventional bicycles

In an advantageous further development of the invention, frame-fixed contact plates can be provided, for the detachable attachment of current consumers. Such contact plates make it possible to subsequently attach current consumers in a simple manner and to supply them with current via the wiring harness. Such contact plates are also suitable for conventional cyclists It can also prove to be advantageous if the armature housing is attached to the handlebars. As a result, the lighting can be arranged very high and the on-board computer can also be in the driver's field of vision

In an advantageous further development, the bicycle can have a steering lock that is attached close to or in a head tube of the frame in order to lock a fork steerer tube of the bicycle in a locked state in a rotationally fixed manner with respect to the head tube Carrying additional locks can be avoided In addition, such a steering lock can be made very compact

It can be advantageous if the steering lock is integrated in a headset of the bicycle. Then the steering lock can be attached together with the assembly of the headset in the frame

The design of the steering lock also makes it possible to attach such a steering lock to a conventional bicycle

In an advantageous development of the invention, a cam lock that can be detachably attached to the frame can be provided, which has a U-shaped bracket, the free ends of which can be connected in a lockable manner by means of a connecting bar for locking the cam lock, the cam lock in the unlocked state around the rear wheel is guided and the free ends are guided past the rear wheel, so that the connecting bars can be attached, the lock engaging around the rear wheel in the locked state

Locking the bicycle can be simplified by such a detachable lock lock attached to the frame. It is no longer necessary to first open the lock, remove it from a holder and only then to drive the corresponding part of the bicycle by means of which the bicycle is to be locked Instead, only the connecting bar has to be attached It can be advantageous here if the front lock is connected to the frame via latching devices. The front lock can also be removed and attached elsewhere

It can also be advantageous if the locking device consists of pegs and associated receptacles, with either the pegs or the receptacles being attached to the frame or bracket. The latch lock can then be easily removed and reattached to the bicycle

It can prove advantageous if the bracket has the pins that can be inserted into the receptacles on the frame. Such receptacles are easier to attach to the frame than to the bracket

It can also prove to be advantageous if the receptacles are arranged on the seat tube, preferably on its upper side. Then the cam lock can be accommodated in a space-saving manner

In addition, it can prove to be advantageous if at least one free end of the bow has an annular receptacle into which the connecting bar can be inserted transversely to the longitudinal extension of the free end. This makes it easier to mount the connecting bar on the bracket

Such a cam lock is also suitable for conventional cyclists

In an advantageous development of the invention, the main frame tube can also have a receptacle accessible from below for holding the power supply source.This allows the transport container to be used even when using the electrical antenna.This receptacle can then also be provided with plug contacts into which the power supply source, preferably a Rechargeable battery, can be used removably, so that the power supply source does not fall out of the receptacle, fastening means can also be provided. It is also conceivable to close the receptacle, for example, by a cover. The receptacle can advantageously also be formed by the main frame tube itself In a further advantageous embodiment of the invention, a plug connection can also be provided between the luggage rack and the frame, for electrically connecting the cable harness to a power line on the luggage rack, which leads to the tail lamp. This plug can be formed integrally with the pins and receptacles that are used to attach the luggage rack are provided on the bike

The invention is explained in more detail below on the basis of an exemplary embodiment

Show it

1 shows the bicycle according to the invention in a schematic side view,

Figure 2 shows an alternative embodiment of the bicycle according to the invention in

Area of the front wheel,

FIG. 3 shows the handlebar of the bicycle according to the invention with a fitting housing in a top view,

FIG. 4 shows the handlebar with the fitting housing from FIG. 3 in a front view,

Figure 5 shows a section of the bicycle according to the invention with an mounted electric motor

FIG. 6 shows a partial sectional view of the bicycle according to the invention along the line VI-VI from FIG. 1

FIG. 7 shows a detail of the bicycle according to the invention from FIG. 1

1 shows the bicycle 1 according to the invention in a schematic side view. The bicycle has a frame 2 with a main frame tube 3 and a seat tube 4. The main frame tube 3 and the seat tube 4 are formed in one piece and essentially V-shaped. The main frame tube 3 and the seat tube 4 are guided under a bottom bracket 5

The bottom bracket 5 consists of a bearing tube 6, not shown, in which a pedal axle 7 with pedals 8 and 9 is arranged in a known manner. The bearing tube 6 is in the V-shaped bend formed by the seat tube 4 and the main frame tube 3, recorded and soldered or welded there

The saddle tube 4 has a transport container 10, which is formed by the saddle tube 4 itself. The transport container 10 is thereby essentially tubular in accordance with the cross section of the saddle tube, that is to say circular or else oval. At the upper end, the transport container 10 can be closed by a lockable cover 11 This lid 11 is essentially cap-shaped and can be attached to the upper end of the transport container 10

A saddle holder in the form of a saddle tube 12 is also attached to the transport container 10 of the saddle tube 4. This saddle tube 12 can be soldered or welded to the saddle tube 4. A saddle 13 with its saddle support 14 can be inserted into the saddle tube in a known manner and, for example, by a clamping device hochver - Can be locked adjustable Such recordings and clamping devices are generally known

Above the bottom bracket 5, a chain stay 15 is arranged. This chain stay 15 is formed from a single strut tube, this strut tube being folded into a U-shape by 180 ° and being guided around the main frame tube 3 in the manner shown, so that the two free ends of the chain stay 15 are passed to the seat tube 4 on both sides. The chain stay 15 is welded or soldered to both the frame main tube 3 and the seat tube 4. Depending on the desired strength, the chain stay 15 can be made from a stay tube with a round diameter or an oval diameter, wherein the larger of the two main axes of the cross section extends vertically. The chain stay 15 is formed straight overall and runs when standing on a horizontal floor Bicycle essentially horizontal The chain stay 15 also forms part of the frame 2

The frame also has two saddle struts 16, which are arranged on both sides of the transport container 10 and the saddle holder tube 12 and are soldered or welded to the same. In the illustration in FIG. 1, the saddle strut 16 extend at an angle of approximately 45 ° to a horizontally standing bicycle Bottom In the lower region of the seat stays 16, these are welded or soldered to the respectively assigned free ends of the chain stay 15. This gives the frame great strength

At the lower part of the seat stays 16 in the illustration in FIG. 1 there are stop ends 17 with receptacles 18 for holding an axle 19 of the rear wheel 20 of the bicycle 1. The receptacles 18 are each elongated and essentially U-shaped, the U being downward In the illustration in FIG. 1, the width of the receptacle in the view in FIG. 1 essentially corresponds to the diameter of the axis 19. As a result, the axis 19 can simply be inserted into the receptacles 18 of the respective seat stays 16 in the vertical direction from bottom to top Screws and nuts, the axis 19 is tightened in a known manner against the stop ends 17

FIG. 7 also shows a detail from the area of the seat stays 16. This detail describes an armature 21 of a hub gear of the rear wheel 20. In the case of gear hubs which are available with three to seven gears, such an armature 21 is provided, which is used to absorb the reaction torque when the coaster brake is used The mode of operation of the circuits is generally known and therefore does not need to be explained further. In the embodiment of the bicycle according to the invention, however, it is provided that the armature 21 is received in a mounting bracket attached to one of the seat stays 16. This mounting bracket 22 is, for example made of metal and welded or soldered to the associated saddle strut 16 It is important here that the tab 22 is dimensioned such that the armature 21 can be inserted into the tab 22 in the manner shown in FIG. 7. The insertion runs parallel to the course of the recordings 18 This allows the Ank he 21 at the same time insertion of the axis 19 into the receptacles 18 in the receptacle tab 22. This enables particularly rapid assembly

The bicycle 1 is driven by a belt drive (not explained in more detail), which connects the pedal axis 7 to the axis 19 of the rear wheel 20 in a known manner. The driving force can then be applied to the rear wheel 20 in a known manner by the pedals 8 and 9

On the seat tube 12 and on the seat stays 16, receptacles 23 are provided, into which pins 24 of a luggage carrier 25 can be inserted. The associated pins 24 and receptacles 23 each provide latching devices by means of which the luggage carrier 25 can be detachably mounted on the frame 2 of the bicycle 1 Assembly takes place by simply inserting the pin 24 into the receptacles 23. The receptacles 23 themselves can simply be designed as bores. Blind plugs, not shown, can be used to seal these receptacles when the luggage carrier 25 is not in use, in order to prevent corrosion or the like in the interior of the seat stays 16 and the like Avoiding saddle support 14 It is also conceivable to additionally provide a locking device with which the luggage rack 25 can be secured relative to the frame 2. Such a locking device could be a lock, for example, or a special tool that is required to hold the luggage rack 25 from frame 2 z u loose

In addition, further receptacles 26 can be provided on the seat stays 16. Pins 27 of a cam lock 28 can then be inserted into these receptacles. This cam lock 28 consists of a bracket 29, which is essentially U-shaped, and a connecting bar 30, with which the free ends of the bow 29 in a known manner can be connected by means of a lock for the purpose of locking the prong lock 28. For this purpose, at least one ring-shaped receptacle 31 can be provided on the bracket 29, through which the connecting bar 30 in the illustration in FIG To connect the two free ends of the bow 29 The bracket 29 extends around the rear wheel in the illustration in FIG. 1 and runs essentially parallel to the seat stays 16. The brackets 29 and pins 27 allow the bracket 29 to be locked to the frame. The, or be removed from the frame It is of course also conceivable to provide the pins 27 on the frame and the receptacles on the bracket. This also applies to the luggage rack

In the rear area of the bicycle 1, cladding elements 32 and 33 can also be provided. Of these cladding elements, the cladding element 32, for example, can cover the area between the saddle bar 16 and the free ends of the chain stay 15. The cladding element 33 can cover the area below the chain stay 15 and is trough-shaped cover the transition from frame main tube 3 to seat tube 4

In the front area, the bicycle 1 has a front wheel 34 that is rotatably mounted in a fork 35 in a known manner. The fork 35 is rotatably received in a head tube 36. This head tube 36 is welded or soldered to the main frame tube 3. The fork 35 is rotatable Stored in the head tube 36 via a headset (not shown) At the upper end, the fork 35 mounts into a head tube, or a stem 37, to which a handlebar 38 is fastened in a known manner. A steering lock 39 is arranged inside the stem tube, which is located in the stem The steering shaft 39 connects the fork shaft tube connected to the fork 35 to the steering tube 36 in the manner of a steering wheel lock to the steering tube 36. This locking preferably takes place in a position in which the front wheel is opposite the main tube Cornering set, or the handlebar 38 is pivoted

On the handlebar 38 a dashboard housing 40 is also attached, which has a display 41 of an on-board computer, which is arranged in the dashboard housing 40, and various control buttons 42 for controlling the on-board computer.Some of the control buttons can also be used to control the lighting system of the bicycle Lighting system consists of two front lights 43, which are integrally accommodated in the dash housing 40, and a tail light 44, which is fastened to the luggage carrier. The dash housing 40 is made of plastic and is preferably constructed from two halves, with an upper half and a lower half, and ver has removable plugs 45, which can be replaced by other controls to operate additional consumers

In the main frame tube 3, a wire harness, not shown, is arranged, from which the ends of the leads come connected to the front light, the on-board computer, the rear light and a power supply source, also not shown.This power supply source is a rechargeable battery that is essentially rod-shaped is and can be inserted into the transport container 10 In the transport container 10, plug connections are provided so that an electrical contact is closed by inserting the battery in the transport container 10 and thereby the on-board computer and the lighting system are supplied with power centrally

In addition, various contact points can be provided on the bicycle in order to be able to attach further power consumers, such as additional lights or the like, to predetermined points by simply plugging them on

In order to additionally facilitate the mounting of the luggage rack, a pin and an associated receptacle 23 and 24 can be formed integrally as a plug for the electrically conductive connection of the cable harness to a line attached to the luggage rack, but not shown Attaching the luggage rack to be electrically connected It is also conceivable to detachably attach the tail light to the luggage rack with a quick fastening or plug-in fastening, in which case the luggage rack can then have one of the various contact points that the tail light is electrically conductive with the power line or via the plug connection with the wiring harness connects

In the variant of the bicycle shown in FIG. 2, the dash housing 40 is provided. In the variant provided in FIG. 1, not. For cyclists who have the dash housing 40, the play in the steering head can be regulated by the stem. For this purpose, the steerer tube of the fork 35 is through felt the control tube 36 and extends beyond the control tube 36 between the fitting housing 40 and the control tube 36 then annular shims 46 can be inserted through which the play is adjustable. The fitting housing 40 can be formed integrally with the stem, or the stem itself can be used for the play compensation. The inner diameter of the shim 46 corresponds essentially to the outer diameter of the steerer tube and the outer diameter essentially the outer diameter of the head tube The stem and / or the fitting housing 40 also protrude radially beyond the steerer tube, thereby forming contact surfaces for the shim 46. A thread in the steerer tube allows the stem or the fitting housing against the shims 46 in the axial direction of the steerer tube be biased

In addition, the bicycle 1 can have an electric motor 47, which is installed between the chain stay 15 and the bottom bracket 5. This electric motor 47 can be retrofitted and removed at any time. The drive is carried out via a schematically illustrated belt 48 on the bottom bracket or the drive of the rear wheel The electric motor is also powered by the rechargeable battery and the wiring harness.

The operation and functioning of the invention is explained in more detail below

Due to the new design of the bicycle or its frame, it is possible to significantly reduce the manufacturing costs for cyclists and still maintain a bicycle with great torsional rigidity.In addition, the special design of the bicycle enables a modular structure of the bicycle or a modular attachment of additional components to the Frame 2 of the bike

For example, the luggage carrier 25 and the electric motor 47 can only be retrofitted at a later point in time

The frame main tube 3 formed in one piece with the saddle tube reduces the required manufacturing section. The chain stay 15 ensures the rigidity of the frame. The transport container 10 makes it possible to store valuables at least temporarily in the bicycle, provided that there is a lockable lid is used. At the same time, this container can also be used as a storage location for rechargeable batteries.

The central power supply via the rechargeable battery for the lighting system and the on-board computer, as well as for the electric motor, makes maintenance easier. It is e.g. possible to charge one battery while another is used, which then supplies all electrical consumers. It is no longer necessary to use individual batteries or individually rechargeable batteries for each consumer.

The vertical wheel ends 17 enable the rear wheel to be easily installed and removed. Compared to conventional bicycles, the rear wheel can simply be pulled down after the fastening screws for the axle 19 have been loosened. The rear wheel can be installed again just as easily. Such a variant is particularly suitable for the preferred belt drive.

The luggage rack 25 can be mounted on the bicycle by simply inserting the pins 24 into the receptacle 23, or can be removed by pulling the pins 24 out of the receptacle 23. This makes it possible to e.g. to use only when needed. It is also possible to first purchase the bike without a luggage rack and only retrofit it at a later date.

Providing a steering wheel lock makes it much easier to use the bike in daily use. Locks are usually extremely bulky. They must first be opened, then attached to the bike and locked. In the bicycle according to the invention, only a key now has to be inserted into the steering wheel lock 39 in order to release the steering. If you want to lock the bike, just turn the steering and remove the key. The cumbersome handling of the padlocks is no longer necessary.

As an alternative, however, the bicycle according to the invention also provides a padlock which is already attached to the frame in a user-friendly manner and which can be removed from the frame in the illustration in FIG. 1, the bicycle can be locked with the lock by simply attaching the connecting bar 30. At the same time, this arrangement is very space-saving

The new dashboard housing with integrated on-board computer and lighting system enables these components to be pre-assembled, which can then be attached to the bike in a pre-assembled state. Such a dashboard housing can also be retrofitted at a later date. It can also be used for other cyclists. At the same time, this dashboard housing is modularly expandable and contains also the controls for the on-board computer

The alternative design of the stem 37 shown in FIG. 2 enables a simple adjustment of the steering head compared to known solutions and enables the attachment of an insertion lock in the steerer tube, since the adjustment mechanism is no longer inside the steerer tube, but through the shims 46 on the outside of the steerer tube between the stem and head tube This facilitates the assembly of a lever lock, which is provided with a lock at the upper end of the steerer tube. The operation can then be integrated, for example, into the fitting housing. The vertical insertion direction of a key into the lock can cause a key, for example, to get stuck during the journey and only has to be pulled off when the rider wants to park and lock the bike

Claims

claims

1. Bicycle with a frame (2) which has a main frame tube (3) and a seat tube (4), and with a bottom bracket (5), characterized in that the main frame tube (3) with the seat tube (4) is formed in one piece and is carried out under the bottom bracket (5).

2. Bicycle according to claim 1, characterized in that the seat tube has a transport container (10).

3. Bicycle according to claim 2, characterized in that the transport container is substantially tubular and is formed by the seat tube.

4. Bicycle according to one of the preceding claims, characterized in that on the seat tube (4) a saddle holder connected to the seat tube is provided.

5. Bicycle according to claim 4, characterized in that the saddle holder is designed as a saddle holder tube (12).

6. Bicycle according to one of claims 2 to 5, characterized in that the transport container has a lockable lid (11).

7. Bicycle according to one of the preceding claims, characterized in that at least one chain stay (15) is provided which connects the frame tube (3) and the seat tube (4) with each other above the bottom bracket.

8. Bicycle according to claim 7, characterized in that the chain stay extends at least in sections straight at least between the seat tube and frame tube.

9. Bicycle according to one of claims 7 or 8, characterized in that the chain stay extends horizontally in a straight section.

10 bicycle according to one of claims 7 to 9, characterized in that the entire chain stay extends straight

11 Bicycle according to one of claims 7 to 10, characterized in that the chainstay is guided around the main frame tube and on both sides of the seat tube

12 bicycle according to one of claims 7 to 10, characterized in that two chain stays arranged opposite sides of the seat tube

13 bicycle according to one of the preceding claims, characterized in that the bicycle has a belt drive

14 bicycle according to one of the preceding claims, characterized in that stop ends are provided for mounting a rear axle (19) of the bicycle, which extend substantially vertically

15 Bicycle according to claim 14, characterized in that the stop ends (17) have receptacles (18) into which the rear axle can be inserted, the receptacles being open at the bottom

16 Bicycle according to one of the preceding claims, characterized in that the bicycle has a hub gear in the rear wheel, which is provided with an anchor (21), and that a receiving tab (22) is provided on the frame of the bicycle, into which the anchor can be inserted , wherein the direction of insertion of the armature into the mounting bracket runs parallel to the insertion of the rear axle into the stop ends

17 bicycle according to one of the preceding claims, characterized in that at least one seat stay (16) is provided which is connected to the chain stay (15) and the seat tube (4)

18. Bicycle according to claim 17, characterized in that the seat stay (16) has the stop end.

19. Bicycle according to claim 17 or 18, characterized in that the saddle strut has the receiving tab.

20. Bicycle according to one of claims 17 to 19, characterized in that the seat stay is connected both to the transport container (10) and to the saddle holder (12).

21. Bicycle according to one of claims 17 to 20, characterized in that two seat stays are provided on opposite sides of the transport container.

22. Bicycle according to one of claims 17 to 21, characterized in that the saddle struts are guided around the transport container and / or the saddle holder, the free ends being guided past the rear wheel on both sides.

23. Bicycle according to one of the preceding claims, characterized in that connection means for releasably attaching a luggage rack (25) are provided on the frame of the bicycle.

24. Bicycle according to claim 23, characterized in that the connecting means are formed by latching devices (23, 24), wherein in each case mating pins (24) and receptacles (23) are provided on the frame and luggage rack.

25. Bicycle according to one of claims 23 or 24, characterized in that the receptacles are provided on the frame and the pins on the luggage rack.

26. Bicycle according to one of claims 23 to 25, characterized in that at least one of the receptacles is arranged on the seat stay.

27. Bicycle according to one of claims 23 to 26, characterized in that at least one of the receptacles is arranged on the seat tube or the saddle holder.

28. Bicycle according to one of the preceding claims, characterized in that the bicycle has an electric motor (47) and a power generation source, preferably a rechargeable battery.

29. Bicycle according to claim 28, characterized in that the electric motor is removably attachable to the chain or struts between the seat tube and the frame main tube.

30. Bicycle according to one of claims 28 or 29, characterized in that the electric motor is connected to the bottom bracket by a belt or chain drive.

31. Bicycle according to one of claims 28 to 30, characterized in that the power supply source can be inserted into the transport container.

32. Bicycle according to one of claims 28 to 31, characterized in that the power supply source is substantially rod-shaped, its outer diameter substantially corresponding to the inner diameter of the transport container.

33. Bicycle according to one of claims 28 to 32, characterized in that a plug connection between the bicycle and the power supply source is provided for the separable electrical connection of the electric motor to the power supply source.

34. Bicycle according to one of claims 28 to 33, characterized in that lighting of the bicycle can be supplied at least temporarily by the power supply source.

35. Bicycle according to one of claims 1 to 28, characterized in that an on-board computer of the bicycle can be operated with the power supply source.

36. Bicycle according to one of claims 28 to 35, characterized in that the bicycle has a cable harness with which the power supply source, the electric motor and / or the lighting and / or the on-board computer can be connected as a central power supply.

37. Bicycle according to claim 36, characterized in that the cable harness is received at least in sections in the main frame tube.

38. Bicycle according to one of the preceding claims, characterized in that fixed contact plates are provided in the frame for detachable attachment of electricity consumers.

39. Bicycle according to one of the preceding claims, characterized in that the on-board computer and a front light are accommodated in a common dashboard housing (40).

40. Bicycle according to claim 39, characterized in that the fitting housing is attached to the handlebar (38).

41. Bicycle according to one of the preceding claims, characterized in that the bicycle has a steering lock (39) which is mounted near or in a head tube of the frame in order to rotate a fork steerer tube of the bicycle relative to the head tube (36) in a locked state lock.

42. Bicycle according to claim 41, characterized in that the steering lock is received in the steerer tube.

43. Bicycle according to claim 41, characterized in that the steering lock is integrated in a headset of the bicycle.

44. Bicycle according to one of the preceding claims, characterized in that a detachably attached bracket lock (28) is provided which has a U-shaped bracket (29), the free ends of which by means of a connecting bar (30) for locking the U-lock are lockable connectable, the U-lock being guided around the rear wheel in the unlocked state and the free ends being guided past the rear wheel, so that the connecting beam can be attached, the lock completely engaging around the rear wheel in the locked state.

45. Bicycle according to claim 44, characterized in that the padlock is connected to the frame via locking devices.

46. Bicycle according to claim 44 or 45, characterized in that the latching device has pins and associated receptacles, wherein either the pin or the receptacle is attached to the frame or the bracket.

47. Bicycle on one of claims 44 to 46, characterized in that the bracket has the pins which can be inserted into the receptacles on the frame.

48. Bicycle according to one of claims 44 to 47, characterized in that the receptacles are arranged on the seat tube, preferably on the upper side thereof.

49. Bicycle according to one of claims 44 to 48, characterized in that at least one free end of the bracket has an annular receptacle through which the connecting bar can be inserted transversely to the longitudinal extension of the free ends.

50. Bicycle according to one of the preceding claims, characterized in that the main frame tube has a downwardly open receptacle for holding a power supply source.

51. Bicycle according to claim 50, characterized in that the receptacle is tubular and is formed by the main frame tube itself.