DE102015105321A1 - Foldable bicycle and method for folding a two-wheeler - Google Patents

Abstract

The invention relates to a collapsible two - wheeled vehicle (10), in particular a scooter, having a rear frame part (11) carrying a rear wheel (12 ') and a saddle (20) and a seat post (22) and a steering unit (30) together with a front wheel (12 ) carrying front frame part (13). According to the invention, the front frame part (13) and the rear frame part (11) are articulated to one another via a separation axis (A), in particular a horizontal axis extending obliquely to the longitudinal frame extension (L) such that when the two frame parts (11; 13) are folded together This separation axis (A), the front wheel (12) and the rear wheel (12 ') can be brought into a position in which these superimposed, in particular substantially congruent superimposed, are arranged.

Description

The invention relates to a collapsible two-wheeler, in particular scooter, with a rear frame member supporting the rear wheel and a seat post and a front frame member carrying a front wheel steering unit according to claim 1. Further, the invention relates to a method of folding a two-wheeler, according to claim 10.

Collapsible electric motorcycles are known in the art. Purely exemplary is on the DE 10 2006 002 912 B4 directed. Corresponding electric scooters or motorized two-wheelers usually have a body and two wheels, wherein one of the wheels is driven by an electric drive.

So far, collapsible electric motorcycles have proved uncomfortable while driving. This is z. B. due to the relatively small-sized wheels and also small-sized seats and steering unit assemblies.

Based on this prior art, it is an object of the present invention to provide a collapsible bicycle, especially scooters, which is both easy to fold and on the other hand, the usual comfort of standard two-wheelers or motorcycles. Furthermore, it is an object of the present invention to provide a further developed method for folding a bicycle.

According to the invention this object is achieved with regard to the collapsible bicycle by the subject-matter of claim 1 and with regard to the method for folding a bicycle by the subject-matter of claim 10.

Advantageous and expedient embodiments of the collapsible two-wheeler according to the invention or of the method according to the invention for folding a two-wheeler are specified in the subclaims.

In particular, the object is achieved by a collapsible bicycle, in particular scooters, with a rear frame member supporting the rear wheel and a saddle and a seatpost and a front frame member carrying a steering unit with a front wheel, the front frame member and the rear frame member being separated by a separation axis, in particular, a horizontal axis extending obliquely to the longitudinal frame axis, articulated to each other such that upon folding of the two frame parts about this separation axis, the front wheel and the rear wheel can be brought into a position in which these superimposed, in particular substantially congruent superimposed, are arranged.

Accordingly, the device comprises at least two frame parts, which are hinged together, wherein a folding of the two frame parts is possible such that the front wheel and the rear wheel can be brought in the folded state in a position such that these two wheels arranged one above the other or next to each other are. Overlying refers in this context, the relative position to each other. It is quite possible that the two wheels will not touch when folded. As a congruent superimposed or substantially congruent superimposed one such position of the wheels is to be understood, in which the circular cross-sectional surfaces of the wheels are arranged approximately one above the other, with a tilting of the cross-sectional surfaces to each other is conceivable.

A major advantage of such a collapsible two-wheeler is that this collapsible bicycle is collapsible with little effort, not having to dispense with standard large scooter wheels.

The two frame parts, ie the front frame part and the rear frame part, are locked or latched at least in the unfolded state by a releasable latching mechanism. By unlocking or unlatching the locking mechanism, the two frame parts can be folded around the separation axis.

In order to enable a smooth folding of the bicycle, it is advantageous to form the separation axis as a horizontal axis extending obliquely to the longitudinal frame extension. As frame longitudinal extension is to be understood the extension of the frame from the front wheel to the rear wheel. With regard to this longitudinal frame extension, the separation axis can thus run obliquely horizontally.

In one embodiment of the invention, the latching mechanism can be unlocked via an actuating lever or via an actuating element arranged on the saddle. The actuator disposed on the saddle may be, for example, an actuating hook. If the latching mechanism is unlocked by the actuating lever or the actuating element, the two frame parts, ie the front frame part and the rear frame part by pulling the saddle or pulling up one above the Disconnected axis arranged handle element in a folded state can be brought.

By pulling up the saddle, which is pivoted in particular before unlocking the locking mechanism itself in the direction of the latching mechanism and there latched or fixed itself, the rear frame part forward, d. H. be pivoted in the direction of the front wheel, so that sets the desired collapsed state. The latching mechanism is preferably a double catch mechanism. First, the latching mechanism forms a releasable locking of the front and the rear frame part. On the other hand, in the latching mechanism, the actuating element of the saddle can be engaged such that the actuating element causes a fixing of the pivoted saddle to the rear frame part. The pivoting may be performed such that the front wheel and the rear wheel, both of which are grounded, are moved towards each other.

The steering unit may comprise a handlebar-carrying steering column and a connected one or two-armed rocker or fork, wherein the steering column via an at least partially oblique parting plane, in an upper, the handlebar comprehensive section and a lower, the swingarm or fork comprehensive Section is divided, wherein the upper portion after unlocking a latching mechanism is laterally foldable in the direction of the front frame part. The upper portion and the lower portion of the steering column may be interconnected by a rocker arm mechanism disposed inside the steering column.

Preferably, this is formed in the interior of the steering column rocker mechanism and / or the locking mechanism by a Bowden cable and / or lockable.

The oblique parting plane can be, for example, a plane formed essentially horizontally with respect to the bearing surface of the collapsible two-wheeled vehicle, wherein only a partial section of the steering column parting plane is formed obliquely or bevelled. If, for example, the steering column has a square or rectangular cross section, it is sufficient to make only one corner section of the steering column cross section oblique or bevelled. Preferably, at least one corner section facing the rear wheel of the two-wheeler is inclined or bevelled in relation to the remaining parting plane. Preferably, the upper portion of the steering column over this oblique or bevelled corner portion laterally downwards or laterally folded toward the front frame part.

The bicycle is after folding the front frame part and the rear frame part and the upper portion and the lower portion of the steering column in a suitcase corresponding transport state. In this transport condition, the folded bicycle can be packed in a suitcase or similar transport container. For example, it is possible to transport a folded bicycle in an airplane.

The rear wheel of the collapsible bicycle according to the invention is held, for example via a rear swing arm on the rear frame part.

As drive of the collapsible bicycle an electric motor is conceivable, the power source or battery is detachably anchored within a arranged between the saddle and the rear frame part holding frame. The battery can be located, for example, in an ergonomically designed battery box. Such a drive is a CO2-neutral drive. Due to the detachable anchoring of the battery or the accumulator, an empty accumulator with a charged accumulator can be easily replaced. The charging of such a power source or such a rechargeable battery is therefore also possible within a house. It is not necessary that the collapsible bicycle be charged at a public charging station or at a charging station.

In summary, the collapsible bicycle according to the invention is firstly a two-wheeled vehicle that can be collapsed in a simple manner. The folding is feasible without great effort. The comfort of the collapsible bicycle is not limited in terms of the dimensioning of the wheels or the steering unit in comparison to known "non-collapsible" scooters.

A secondary aspect of the invention relates to a method for folding a two-wheeler, in particular a described two-wheeler according to the invention. The method of folding a bicycle together relates to such a bicycle comprising a rear frame member supporting the rear wheel, and a seatpost and a seat post, and a front frame member carrying a front wheel steering unit, the front frame member and the rear frame member having a separation axis, in particular, a horizontal axis extending obliquely to the longitudinal direction of the frame are articulated to one another.

With regard to the possible structural embodiments of a collapsible bicycle reference is made to the explanations already given.

• a) Lösen einer Verriegelung am Sattel;
• b) Schwenken des Sattels in Richtung der Trennachse;
• c) Einrasten eines am Sattel angeordneten Betätigungselements, insbesondere eines Betätigungshakens, in einen Rastmechanismus;
• d) Hochziehen des Sattels, sodass der vordere Rahmenteil und der hintere Rahmenteil zusammengefaltet werden.

The inventive method for folding a two-wheeler comprises the following steps:

• a) releasing a lock on the saddle;
• b) pivoting the saddle in the direction of the separation axis;
• c) engaging a seated on the actuator, in particular an actuating hook, in a locking mechanism;
• d) pulling up the saddle so that the front frame part and the rear frame part are folded together.

The latching mechanism locked or latched at least in unfolded state, the front frame member and the rear frame part together. By locking the actuating element in the locking mechanism, a / the lock between the front frame part and the rear frame part is released. Accordingly, a hinge and / or an axis of rotation is released by the engagement of the actuating element in the latching mechanism. The locking mechanism has a double catch function. On the one hand, latching of the actuating element of the saddle with the rear frame part can be effected. On the other hand, a catch between the front frame part and the rear frame part can be released.

The pulling up of the saddle in step d) causes the rear frame part about an axis of rotation, which is preferably formed substantially perpendicular to the direction of travel, in the direction of the front frame part, in particular in the direction of the front wheel and can be pivoted. During this rotation or pivoting, the front wheel standing on the ground and the rear wheel standing on the ground move towards each other.

• e) Lösen eines im Inneren einer Lenksäule der Lenkeinheit ausgebildeten Rastmechanismus;
• f) Wegschwenken eines oberen Abschnitts von einem unteren Abschnitt der Lenksäule entlang einer, zwischen dem oberen Abschnitt und dem unteren Abschnitt ausgebildeten, zumindest teilweise schrägen Trennebene.

The method according to the invention further provides the following steps:

• e) releasing a locking mechanism formed in the interior of a steering column of the steering unit;
• f) pivoting away an upper portion of a lower portion of the steering column along an at least partially oblique parting plane formed between the upper portion and the lower portion.

At the lower portion of the steering column, a one- or two-armed rocker or fork is connected. At the upper portion of the steering column, a handlebar is arranged or connected. The upper portion can thus be pivoted away by means of a gripping and pulling on the handlebar from the lower portion of the steering column. The pivoting away or folding away the upper portion of the steering column, for example, takes place laterally in the direction of the front frame part. In a sitting on the two-wheeled position, therefore, the upper portion can initially folded away obliquely behind and then folded down in the direction of the front frame part.

The pivoting away or folding away of the upper portion is preferably along a chamfered corner region of the parting plane.

The steps e) and f) can be performed before the steps a) to d).

The locking mechanism formed in the interior of the steering column of the steering unit can be released in step e), for example, by actuating a Bowden cable. A Bowden cable allows a power-saving option with regard to the release of a locking mechanism.

In step f), the pivoting away of the upper portion by means of an eccentric rocker arm of a rocker mechanism can be performed. The eccentric rocker arm is arranged in the interior of the steering column such that the housing, in particular the inner housing of the upper portion of the steering column along the eccentric rocker arm is pivoted away or folded away in the predetermined by the partially oblique parting plane pivoting. The eccentric rocker arm thus serves as a guide means for pivoting away the upper portion of the steering column.

In step b), the pivoting of the saddle in the direction of the separation axis can be carried out by means of an eccentric rocker arm. This means that the unlocked saddle is pivoted with the pointing in the direction of travel end via an eccentric rocker arm in the direction of the parting plane. The eccentric rocker arm thus serves as a pivoting guide of the saddle and limits the pivoting direction and the maximum Ausschwenkzustand the saddle.

In step a) can be folded out of the saddle when releasing the locking of the actuating lever, in particular the actuating hook.

The release of the lock according to step a) can be performed by operating a Bowden cable. At the same time, the actuation of the Bowden cable or the release of a lock can cause the unfolding of an actuating element, in particular of the actuating hook. This actuator or this actuating hook is made by pivoting the saddle in the direction of Separation axis (step b)) guided to the latching mechanism. By locking the actuating element or actuating hook into the latching mechanism, the saddle is fixed in the latching mechanism on the one hand, and, on the other hand, the connection between the front frame part and the rear frame part is released. Since the saddle is engaged in the latching mechanism, the saddle can be pulled upwards at the rear end of the saddle, that is, at the rear wheel-facing end of the saddle, for example by means of a handle formed at the rear end of the saddle, so that the rear frame part together with the Rear wheel can be rotated or pivoted about an axis of rotation in the direction of the front frame part, in particular in the direction of the front wheel.

The invention will be described below with reference to embodiments, which are explained in more detail with reference to figures.

Show here

1a u. 1b an inventive two-wheeler in the unfolded state in a perspective view and a bottom view;

2a - 2c the two-wheeler according to the invention in the partially folded state, in particular with a pivoted saddle and a weggeschwenkten or folded away upper portion of the steering column in various perspective views;

3a u. 3b various views regarding the rocker mechanism formed inside a steering column;

4a u. 4b a saddle joint for pivoting the saddle in the untwisted and pivoted state;

4c Saddle with unfolded actuator;

5a u. 5b various views with respect to a latching a front frame member and a rear frame part of the bicycle locking mechanism; and

6a u. 6b perspective views of a fully folded two-wheeler.

In the following description, the same reference numerals are used for identical and equivalent parts.

1 shows a bicycle according to the invention 10 in the unfolded state. In the illustrated two-wheeler 10 it is a scooter. The bicycle 10 has a rear frame part 11 and a front frame part 13 on. The rear frame part 11 carries the rear wheel 12 ' as well as the saddle 20 and the seat post 22 , The front frame part 13 carries the steering unit 30 including the front wheel 12 ,

The steering unit 30 includes a handlebar 31 a steering column 32 and one on the steering column 32 connected swingarm 33 , At the handlebar 31 can controls, such. B. a horn or brake lever 34 be arranged. Furthermore, the handlebar 31 have a display unit that displays, for example, the speed of travel or the state of charge of a battery.

The steering column 32 can be divided into two sections, namely an upper, the handlebar 31 comprehensive section 35 , and a lower, the swingarm 33 comprehensive section 36 , The subdivision of the steering column 32 takes place via a parting line 37 which is at least partially inclined.

The front frame part 13 further includes the longitudinal strut 14 as well as the foot rests 15 , Between the front frame part 13 and the rear frame part 11 is a locking mechanism 16 trained, in 1 only an illustrated gap on this locking mechanism 16 points.

The front frame part 13 and the rear frame part 11 are connected via a separation axis A, which is formed in particular as an obliquely to the longitudinal frame extension L extending horizontal axis hinged together. The connection of the two frame parts 11 and 13 to each other is formed such that when folding the two frame parts 11 and 13 around this axis A (see 1b ) the front wheel 12 and the rear wheel 12 ' can be brought into a position in which these superimposed, in particular substantially congruent superimposed, are arranged.

The 2a to 2c show the bicycle 10 in the partially folded state. In a first step, here was the upper section 35 the steering column 32 from the lower section 36 the steering column folded. The steering column 32 has a trapezoidal cross-section. In this context, it is indicated that the parting plane 37 slightly bevelled. The beveling takes place in the corner area 38 , This corner area 38 is at the steering column 32 opposite to the direction of travel F or to the rear wheel 12 ' educated pointing. The dividing plane 37 So it runs in the corner area 38 sloping down towards the floor. The upper section 35 is after unlocking a locking mechanism laterally in the direction of the front frame part 13 worked. Inside the steering column 32 is a rocker mechanism 50 formed the upper section 35 with the lower section 36 the steering column 32 combines.

The 2a to 2c further show that the saddle 20 is pivoted in the direction of the separation axis A. This must first on the saddle 20 a lock to be released. The lock is in 2c as a hook-like element 23 shown. The lock 23 can by pressing a release in the pocket 24 of the saddle 20 be solved. The saddle 20 gets along with the seat post 22 pivoted in the direction of the separation axis A. When releasing the lock 23 and thus upon actuation of a release mechanism on the saddle 20 becomes an actuating element at the same time 25 in the form of an actuating hook from the saddle 20 unfolded (see 4c ).

Preferably, the actuating element 25 at the front end 26 ie at the front wheel 12 pointing end of the saddle 20 collapsed. The actuator 25 will be in the in 1a illustrated gap of the locking mechanism 16 introduced. By snapping the actuator 25 in the locking mechanism 16 the locking mechanism is unlocked. The saddle 20 is now with the front end 26 with the rear frame part 11 fixed. By pulling up at the rear end 27 of the saddle 20 ie to the rear wheel 12 ' pointing end 27 , or by grip in the pocket 24 of the saddle 20 and corresponding pulling up the front frame part 13 and the rear frame part 11 pivoted about the separation axis A to each other. That is, the distance a between the front wheel 12 and the rear wheel 12 ' (see also 2 B ) is continuously reduced, the two wheels 12 and 12 ' accordingly roll towards each other. It will be on the saddle for as long as possible 20 pulled up the bike 10 reached a final folded state. In this condition, the front wheel 12 and the rear wheel 12 ' placed in a position in which these superimposed, in particular congruent superimposed or side by side, in particular congruent side by side, stand.

In the 3a and 3b becomes the inside of the steering column 32 arranged rocker mechanism 50 shown in more detail. The dividing plane 37 can be seen. Also visible is the bevelled corner area 38 , By means of a Bowden cable (not shown) is the rocker mechanism 50 or the locking mechanism first to solve. For this purpose, a tensile force is applied in the direction of the arrow, so that the latching hook 51 via a stop element 52 is pulled. Next is the top section 35 the steering column 32 from the lower section 36 the steering column 32 solved. This is followed by a swinging away of the upper section 35 from the lower section 36 the steering column along the between the upper section 35 and the lower section 36 trained dividing plane 37 , In particular, the swinging away via the corner area 38 , Swinging away the upper section 35 done with the help of the rocker arm 53 , The rocker arm 53 serves as a guide to swinging away. At the rocker arm 53 it is an eccentric rocker arm.

In the 4a and 4b is the seat post 22 shown. The seat post 22 includes an upper section 28 and a lower section 29 , At the top section 28 is the saddle 20 arranged or attached. The lower section 29 serves to connect the seat post 22 with the rear frame part 11 , The upper section 28 the seat post and the lower section 29 The seat post will be separated by a dividing plane 60 , which in particular runs obliquely downwards, separated.

By pressing an unlocking device, such as. B. a Bowden cable, the lock 23 solved, leaving the upper section 28 the seat post from the lower section 29 the seat post can be swiveled away or folded away. The swinging of the saddle 20 or the upper section 28 The seat post is made by means of an eccentric rocker arm 61 , The length and the degree of bending of the eccentric rocker arm 61 determine the pivoting direction of the saddle 20 as well as the maximum possible pivoting.

When releasing the lock 23 is at the same time at the front end 26 of the saddle 20 an actuator 25 in the form of an actuating hook from the saddle 20 unfolded (see 4c ).

This actuator 25 can in the in the 5a and 5b illustrated locking mechanism 16 intervention. The engagement of the actuating element 25 in the opening 17 the locking mechanism 16 causes on the one hand a locking and thus fixing the saddle 20 in the locking mechanism 16 , This will be the actuator 25 with the rear frame part 11 connected or fixed to this. On the other hand, the illustrated hinge joint 18 Released or unlocked, so that the front frame part 13 and the rear frame part 11 can be moved towards each other in the arrow direction. This is done by pulling or pulling up on the saddle 20 ,

As in the 2a and 2c is shown, the rear wheel 12 ' via a rear swing arm 55 on the rear frame part 11 held.

As a drive of the illustrated two-wheeler 10 can serve an electric motor, its power source within a between saddle 20 and rear frame part 11 arranged holding frame 56 is releasably anchored. The battery box 21 can therefore from the holding frame 56 be removed.

The figures can also be seen that the front rocker 33 of the front wheel 12 is formed in the direction of travel F left. The swing arm 55 of the rear wheel 12 ' is, however, formed in the direction of travel F right. This causes by pulling up in the latching mechanism 10 latched saddle 20 the front wheel 12 and the rear wheel 12 ' can be moved towards each other without the swingarm 33 and the swing arm 55 get in touch.

The 6a and 6b show the fully folded state of the bicycle 10 , Here are the front wheel 12 and the rear wheel 12 ' placed in a position in which the two wheels 12 and 12 ' one above the other, in particular substantially congruently arranged one above the other. As a congruent superimposed one state is understood in which the circular cross section of the wheels 12 and 12 ' is arranged approximately one above the other. The wheels 12 and 12 ' can here be slightly obliquely to each other or angled to each other. Im in the 6a and 6b illustrated state in which the wheels 12 and 12 ' can still stand on the ground, the location of the wheels 12 and 12 ' also be referred to as such, in which the wheels 12 and 12 ' side by side, in particular substantially congruent side by side, are arranged. With regard to the term, the same explanations and definitions apply as they have already been given in connection with the superimposed arrangement.

The right unfolded side surface 65 of the front wheel 12 and left side surface 66 of the rear wheel 12 ' (please refer 2a ) are formed facing each other in the folded state. In the illustrated transport state, the two-wheeler 10 a suitcase size on, so the two-wheeler 10 can be easily transported.

It should be noted at this point that all the above-described parts taken alone and in any combination, in particular the details shown in the drawings, are claimed as essential to the invention. Variations thereof are familiar to the person skilled in the art.

LIST OF REFERENCE NUMBERS

10

bicycle

11

Rear frame part

12

front

12 '

rear wheel

13

Front frame part

14

longitudinal strut

15

footrest

16

detent mechanism

17

Opening detent mechanism

18

hinge

20

saddle

21

battery box

22

seatpost

23

lock

24

slip pocket

25

actuator

26

Front end saddle

27

Rear end saddle

28

Upper section seatpost

29

Lower section seatpost

30

steering unit

31

handlebars

32

steering column

33

wing

34

brake lever

35

Upper section steering column

36

Lower section steering column

37

parting plane

38

corner

50

rocker mechanism

51

latch hook

52

stop element

53

rocker arm

55

swing arm

56

holding frame

60

Dividing plane seat post

61

rocker arm

65

Right side surface front wheel

66

Left side surface rear wheel

a

Distance front wheel to rear wheel

A

separating axis

F

direction of travel

L

Frame longitudinal extension

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been 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.

Cited patent literature

• DE 102006002912 B4 [0002]

Claims (17)

Folding bicycle ( 10 ), especially scooters, with a rear wheel ( 12 ' ) and a saddle ( 20 ) and a seat post ( 22 ) supporting rear frame part ( 11 ) and a steering unit ( 30 ) with a front wheel ( 12 ) bearing front frame part ( 13 ), characterized in that the front frame part ( 13 ) and the rear frame part ( 11 ) via a separation axis (A), in particular an obliquely to the frame longitudinal extent (L) extending horizontal axis, are hinged together such that when folding the two frame parts ( 11 ; 13 ) about this separation axis (A) the front wheel ( 12 ) and the rear wheel ( 12 ' ) can be brought into a position in which these ( 12 ; 12 ' ) lying one above the other, in particular substantially congruent superimposed, are arranged. Bicycle ( 10 ) according to claim 1, characterized in that the two frame parts ( 11 ; 13 ) at least in unfolded state by a releasable latching mechanism ( 16 ) are locked or latched. Bicycle ( 10 ) according to claim 2, characterized in that the latching mechanism ( 16 ) via an actuating lever or on the saddle ( 20 ) arranged actuating element ( 25 ), in particular an actuating hook, can be unlocked so that the two frame parts ( 11 ; 13 ) by pulling up the saddle ( 20 ) or one above the separation axis (A) arranged grip element can be brought into a folded state. Bicycle ( 10 ) according to one of claims 1 to 3, characterized in that the steering unit ( 30 ) a handlebar ( 31 ) supporting steering column ( 32 ) and an attached one or two-armed rocker ( 33 ) or fork, wherein the steering column ( 32 ) over an at least partially oblique parting plane ( 37 ) in an upper, the handlebar ( 31 ) comprehensive section ( 35 ) and a lower, the swingarm ( 33 ) or fork comprehensive section ( 36 ), the upper section ( 35 ) after unlocking a latching mechanism ( 51 ) laterally towards the front frame part ( 13 ) is foldable. Bicycle ( 10 ) according to claim 4, characterized in that the upper section ( 35 ) and the lower ( 36 ) Section of the steering column ( 32 ) by an inside of the steering column ( 32 ) arranged rocker arm mechanism ( 50 ) are interconnected. Bicycle ( 10 ) according to claim 4 or 5, characterized in that the latching mechanism ( 51 ) and / or the rocker mechanism ( 50 ) is unlocked and / or locked by a Bowden cable. Bicycle ( 10 ) according to one of claims 1 to 6, characterized in that the two-wheeler ( 10 ) after folding the front frame part ( 13 ) and the rear frame part ( 11 ) as well as the upper section ( 35 ) and the lower section ( 36 ) of the steering column ( 32 ) is in a suitcase size corresponding transport state. Bicycle ( 10 ) according to one of the preceding claims, characterized in that the rear wheel ( 12 ' ) via a rear swing arm ( 55 ) on the rear frame part ( 11 ) is held. Bicycle ( 10 ) according to one of the preceding claims, characterized in that the drive is an electric motor, the power source or battery within a between saddle ( 20 ) and rear frame part ( 11 ) arranged holding frame ( 56 ) is releasably anchored. Method for folding a two-wheeler, in particular a two-wheeler ( 10 ) according to one of claims 1 to 9, wherein the bicycle ( 10 ) one a rear wheel ( 12 ' ) and a saddle ( 20 ) and a seat post ( 21 ) supporting rear frame part ( 11 ) and a steering unit ( 31 ) with a front wheel ( 12 ) bearing front frame part ( 13 ), wherein the front frame part ( 13 ) and the rear frame part ( 11 ) are connected to one another in an articulated manner via a separation axis (A), in particular a horizontal axis running obliquely to the longitudinal extent of the frame (L), characterized by the following steps: a) release of a lock ( 23 ) on the saddle ( 20 ); b) pivoting the saddle ( 20 ) in the direction of the separation axis (A); c) Engaging one on the saddle ( 20 ) arranged actuating element ( 25 ), in particular an actuating hook, in a latching mechanism ( 16 ); d) pulling up the saddle ( 20 ), so that the front frame part ( 13 ) and the rear frame part ( 11 ) are folded together. Method according to claim 10, characterized in that the latching mechanism ( 16 ) at least in unfolded state, the front frame part ( 13 ) and the rear frame part ( 11 ), wherein the latching mechanism ( 16 ) by engaging the actuating element ( 25 ) the locking between the front frame part ( 13 ) and the rear frame part ( 11 ) releases. A method according to claim 10 or 11, characterized by e) releasing one inside a steering column ( 32 ) of the steering unit ( 30 ) formed locking mechanism ( 51 ); f) swinging away an upper section ( 35 ) from a lower section ( 36 ) of the steering column ( 32 ) along one, between the upper section ( 35 ) and the lower section ( 36 ) formed, at least partially oblique, separation plane ( 37 ). A method according to claim 12, characterized in that the steps e) and f) are performed prior to the steps a) to d). A method according to claim 12 or 13, characterized in that in step e) by actuating a Bowden cable of the latching mechanism ( 51 ) is solved. Method according to one of claims 12 to 14, characterized in that in step f) the pivoting away of the upper portion ( 35 ) by means of an eccentric rocker arm ( 53 ) a rocker mechanism ( 50 ) is carried out. Method according to one of claims 10 to 15, characterized in that in step b) the pivoting of the saddle ( 20 ) by means of an eccentric rocker arm ( 61 ) is carried out. Method according to one of claims 10 to 16, characterized in that in step a) when releasing the lock ( 23 ) the actuating element ( 25 ), in particular the actuating hook, from the saddle ( 20 ) is unfolded.

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