WO1999000290A1

WO1999000290A1 - Foldable scooter

Info

Publication number: WO1999000290A1
Application number: PCT/CH1998/000238
Authority: WO
Inventors: Wim A. Ouboter
Original assignee: Ouboter Wim A
Priority date: 1997-06-28
Filing date: 1998-06-03
Publication date: 1999-01-07
Also published as: AU7423498A; CH691952A5

Abstract

The invention relates to a foldable scooter (1) having a hinge pin (4) around which a handlebar (2) can be folded in relation to a footboard (3). Both the footboard (3) and handlebar (2) consist of several separate parts (8, 9; 12, 13, 14) so that the length of the footboard (3) and the handlebar (2) can be reduced. This is possible because hinges (10, 15, 16) are situated between the parts (8, 9; 12, 13, 14) so that said parts (8, 9; 12, 13, 14) can be pivoted in relation to each other, but also because said parts (8, 9; 12, 13, 14) can be slid into each other telescopically. These measures reduce the dimensions of the folded scooter to such an extent that it can easily be transported in other means of transport such as tramcars or in the boot of a motor vehicle.

Description

Collapsible scooter

The invention relates to a collapsible scooter according to the preamble of claim 1.

Such scooters are suitable, for example, for moving people on more or less level traffic areas such as footpaths. It is also possible to carry objects with you. Due to the possibility of folding the scooter, its dimensions can be reduced so that it is possible to carry it in other means of transport such as car, bus or tram.This makes it possible to cover longer distances between a parking lot or a stop and a destination Visit or an errand quickly and conveniently using this scooter

A collapsible scooter of the .Art mentioned in the preamble of claim 1 is known from DE-Ul-93 02 169. With this scooter the running board, which is arranged approximately perpendicular to the steering column when in use, can be pivoted so that it lies approximately parallel to the handlebar is coming. In this folded position, the scooter has smaller dimensions. Because of the considerable weight of the scooter, the scooter is designed so that it can also be rolled when folded. In addition, the scooter is designed so that it can also be used to transport loads

From WO 95/34461 a collapsible scooter is known which has a footboard which is considerably longer than that of DE-Ul-93 02 169, but which can nevertheless be reduced more in size by collapsing

At least the one length extension of the folded scooter of the two aforementioned embodiments is so large that the scooter is bulky, which is problematic when carried on other means of transport. Public transport such as buses or trams may have to be used for objects that are in a lengthwise dimension exceed a certain level, a ticket can be drawn. At the

Carrying it in the trunk of a passenger car can be lengthy with regard to other items of luggage to be carried.

The invention has for its object to further develop a collapsible scooter so that its space requirement in the collapsed state is reduced so significantly that its carrying, for example even within a small piece of luggage, is completely problem-free in other modes of transport. O 99/00290

The stated object is achieved according to the invention by the features of claim 1. Advantageous further developments result from the dependent claims

Exemplary embodiments of the invention are explained in more detail below with reference to the drawing.

1 shows a scooter in the state of use,

2 the scooter in the folded state,

3a shows a schematic illustration of a handlebar in the state of use,

3b this handlebar in the folded state,

4 shows a diagram of the device for pivoting a handlebar relative to a footboard of the scooter,

5 shows a detail from FIG. 4,

6 shows a detail of the collapsible footboard,

7 shows a further embodiment of the running board,

8 shows an embodiment with steplessly adjustable length of the running board, FIG. 9 shows a cross section through a handlebar guide,

10 is a diagram of an arrangement of the fender 24 on the rear part of the running board 3,

11 shows a cross section at the height of the rear wheel 21 with details of a braking device, FIG. 12 shows a section through a folding connection,

13 is a view of retaining brackets molded onto the running board,

14 is a view of an insert,

15 is a view of a lever,

Fig. 16a to 16c three possible positions of the lever and the associated insert and

Fig. 17 details of a locking device

In Fig. 1, 1 means a collapsible scooter in its use position, which has a handlebar 2, which can be rotated about an axis 4 against a running board 3. This axis 4 is located within a connecting piece 5, which is the mechanical connection between the running board 3 and a Manufactures handlebar guide 6 The handlebar 2 is rotatably mounted in this handlebar guide 6 In this position of use, the scooter 1 has a certain height H, which correlates with the length of the handlebar 2, a certain height with the O 99/00290

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Length of the running board 3 correcting length L and a certain width B This width B is given by the width of a handlebar 7 attached to the upper end of the handlebar 2

The footboard 3 consists of at least two parts, namely, for example, a front part 8 and a rear part 9. The rear part 9 of the footboard 3 leaves by the fact that the two parts 8, 9 of the footboard 3 are connected by a hinge 10 to one In this hinge 10 contained further axis 1 1 fold over, ie rotate by about 180 degrees. According to the invention, the length L of the footboard is shortened by about half. In the same way, the handlebar 2 can be shortened in length. This is achieved in that the handlebar 2 consists of at least two parts, for example a first part 12, a second part 13 and a third part 14, the two parts 12 and 13 on the one hand and the two parts 13 and 14 on the other hand by means of a device with an axis of rotation, for example one each further hinge 15, 16 are connected to one another. The hinge 15 and the hinge 16 also contain an axis of rotation, namely the third axis se 17 Thus, the handlebar 2 can be folded by turning the second part 14 relative to the first part 13 about the axis 17, ie rotating it by approximately 180 degrees. The handlebar 2 is thus foldable twice as the devices allowing the folding with an axis of rotation all possible known means come into consideration, such as the known joints of parasol poles or washing line carrying devices

At the lower end, the handlebar 2 is designed as a fork 18 which receives a first wheel 19 at the end of the connection to the handlebar 2 opposite

Tnttbretts 3 is attached to a wheel mount 20, in which a second wheel 21 is arranged. As wheels 19 and 21, the wheels known from inline skates can preferably be used. These have small dimensions As mass products, such wheels are also relatively inexpensive. In addition, such wheels are commercially available as

Additional device have a light source that flashes automatically when the wheel rotates

The handlebar 7 arranged on the upper part of the steering rod 2 has a handle 22 on each of its ends. A locking sleeve 23 is also shown, the mode of operation of which will be described later. On the upper side, the wheel 21 is covered by a protective plate 24

In FIG. 2 the scooter 1 is shown in the folded position. The same reference numerals designate the same parts as in FIG. 1 as with the previously known one O 99/00290

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State of the art, the handlebar 2 is rotated against the footboard 3 about the axis 4 by an angle of about 90 degrees. According to the invention, however, the rear part 9 of the footboard 3 is rotated about the axis 11 of the hinge 10 by about 180 degrees and also the handlebar 2 is reduced in length. It can be seen that the handlebar 2 is folded twice, namely firstly the second part 13 with respect to the first part 12 about the axis 17 contained in the hinge 15, and also the third part 14 with respect to the second part 13 the axis 17 contained in the further hinge 16. In this position, the greatest length dimension is approximately half of the larger of the two dimensions L and H, so that the greatest length dimension in the folded state is only half the size of a scooter 1 according to the prior art An even greater reduction in the greatest length extension is possible if both handlebar 2 and footboard 3 consist of several parts that can be folded or telescoped, which will be described later

Advantageously, let itself when roller 1 and the handlebar 7 fold, as shown in FIG. 2 already seen is the handlebar 7, FIGS Details 3a and 3b The handlebar 7 is composed of two Lenkerhalften 25 ^', 25 ", said axis by means of a 26, which is fastened to the upper end of the handlebar 2, not shown, are rotatably arranged. Each of the handlebar halves 25 ', 25 "has an L-shaped configuration. The two handlebar halves 25', 25 ^" are constructed in mirror image to one another. Each handlebar halves 25 ^' , 25 ^" has a longer leg 27 ^' , 27 ", which is, for example, tubular and is provided with a handle 22 at its end. Each handlebar half 25 ^' , 25" also has a shorter leg 28 ^' , 28 ^" , one above the other in FIG. 3a lie, so that only one of the two legs 28 ^' , 28 "is visible. On the handlebar 2, which is not visible in FIG. 3a, the aforementioned locking sleeve 23 can be moved so that it is in its upper position, as in FIG. 3a shown encompasses the shorter legs 28 ^' , 28 ^". As a result, the two handlebar halves 25 ^' , 25" are fixed in their position. In the position of use shown in FIG. 3a, the longer legs 27 ^' , 27 "are pivoted outward and form the ready-to-use handlebar 7. The handlebar 7 has the value width B as the length extension

A dashed line shows a second position of the locking sleeve 23 in which it does not encompass the two legs 28 ', 28 ", so that they can be rotated about the axis 26 - 3 -

3b shows the position created by turning the two handlebar halves 25 ^' , 25 "by 90 degrees. The same reference numbers here again refer to the same parts. In this position, the handlebar 7 is folded, that is to say it has a considerably smaller dimension than the width B. .

4, the manner in which the foldability of the handlebar 2 relative to the running board 3 is achieved is described below. The handlebar 2 is encompassed by the handlebar guide 6 shown in FIG. 1, which has a projection 31 rigidly connected to it. On this extension 31 there is an axis 32 corresponding in function to the axis 4 (FIGS. 1, 2), which emerges from the extension 31 on both sides. A locking pin 33 is attached near the end of the extension 31. This locking pin 33 can advantageously be fastened within the extension 31 in a rubber or rubber sleeve, not shown. This results in a certain spring effect between the footboard 3 and handlebar 2, which benefits driving comfort.

Firmly connected to the footboard 3 are two retaining brackets 34, of which only one is visible in the side view of FIG. 4. The second bracket 34 is below the plane of the drawing. The bracket 34 each have a hole that is filled by the axis 32. The axis 32 thus forms the fulcrum around which the handlebar 2 and running board 3 can be rotated relative to one another, that is to say can be folded.

Arranged within the footboard 3 is a locking lever 36 which can be rotated about a further axis of rotation 35. In one position, one leg of the locking lever 36 is aligned with the surface of the footboard 3. In this position, the other leg of the locking lever 36, which is designed as a pawl 37, engages around the locking pin 33. The handlebar 2 is thereby fixed relative to the footboard 3 . The pawl 37 is drawn in FIG. 4 as the pawl encompassing the locking pin 33 on one side. However, it is also possible to provide a double pawl instead, which engages around the locking pin 33 on both sides.

If the locking lever 36 is raised at its end opposite the pawl 37 so that it emerges from the footboard 3, the pawl 37 no longer comprises the locking pin 33. This position of the locking lever 36 is shown with a dotted line. In this position of the locking lever 36, the handlebar 2 can be pivoted about the axis 32 with respect to the running board 3. The movement thus possible is indicated by an arrow in FIG. 4. This allows folding in the manner already given in the prior art. 5 shows a detail of the handlebar guide 6 with the shoulder 31. The axle 32 can advantageously assume, for example, three different positions 39 ^' , 39 ", 39 ^'" if a recess 40 is shown in the shoulder 31 for receiving the axle 32 Form is present. The shape is formed by the common circumferential line of three circumferential circumferential lines 41 ^' , 41 ^" and 41 ^' " which are offset with respect to one another

Fastening means can be fastened in one of the positions 39 ^' , 39 ^" , 39 ^' " With these measures it is achieved that the handlebar 12 can have slightly different positions, ie inclinations, when the scooter 1 is in use. If the axle 32 is inserted in the position 39 ', so the handlebar 2 is most inclined. If the axle 32 is inserted in the position 39 ^'" , the handlebar 2 is in an almost vertical position

Position 39 "is in a middle position. With the measures described, it is possible to adapt the scooter to the user's body dimensions in its state of use

6 shows details of the collapsible footboard 3. As already described above, the front part 8 and the rear part 9 of the footboard 3 are hingedly connected by means of the hinge 10 containing the axis 11. The use position corresponding to FIG. 1 is shown in this form The mutually facing ends of the front part 8 and the rear part 9 are slightly chamfered, the edges adjacent to the hinge 10 being closer together than the edges facing away from the hinge. The space between these edges is filled by a rubber block 45 of approximately trapezoidal cross-section Rubber block 45 is fastened, for example, to the front part 8 and is clamped in the position of use between the inclined surfaces of the front part 8 and the rear part 9, ie printed. This rubber block 45 thus acts as a steaming compression spring. Thus, the two parts 8 and 9 are not rigidly against one another , but can move something relative to each other This causes a certain suspension and damping when driving on not entirely smooth roads

On one side or on both sides of the front part 8 of the running board 3 is a tubular guide sleeve 46 for a locking pin 47, which can be displaced horizontally in this guide sleeve 46. In the illustration shown in FIG. 6, the locking pin 47 is in a on the rear part 9 of the footboard 3 attached pipe piece 48 inserted. The rotatability of the rear part 9 relative to the front part 8 is almost completely eliminated. However, the dimensions of the locking pin 47 and pipe piece 48 are advantageous such that there is a certain freedom of movement of the rear part 9 relative to the front part 8 O 99/00290

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This enables the rubber block 45 to take effect as a spring element. In order to achieve this, the inner diameter of the tube piece 48 can, for example, be significantly larger than the diameter of the locking pin 47.

The type of locking described above is only to be understood as one of many possible designs of such a device. Instead of the pipe section 48, for example, a semicircular limiter which is open at the bottom can alternatively be present. The known prior art also offers a number of solutions for such a purpose. As such, it would also be possible to dispense with such a lock entirely, because when the scooter 1 is used, the foot of the user is located on the running board 3, so that a force is exerted on the two parts 8 and 9 of the running board 3. that these parts 8, 9 remain in the position shown in FIG. 1. However, the presence of such a lock is expedient because the roller 1 may be worn over short distances in order to overcome obstacles such as sidewalk edges and stairs. In order to reliably prevent the unintentional folding over here, such a lock should be present.

In the exemplary embodiment described above, the dimensions of the height H and length L are reduced by flaps, i.e. by swiveling individual parts against other parts. It is also within the scope of the invention to construct the handlebar 2 and the footboard 3 from individual parts such that these individual parts can be telescoped together.

This embodiment is shown in FIG. 7 using the example of a running board 3 in a schematic sectional illustration. Here, the rear part 9 can be inserted into the front part 8. When in use, the footboard 3 is extended to its greatest length. The rear part 8 is located only as far within the front part 8 as is necessary for reasons of stability. In the transport state, the rear part 9 is almost completely inserted into the front part 8. A two-part version is shown, but a multi-part telescopic version is also possible. The two end positions can be locked using a pin, for example.

The embodiment described above offers the possibility of varying the length of the footboard 3 even when in use. So it can be advantageous to provide several intermediate positions in addition to the two end positions "extended" and "pushed in", which can be locked, for example, by means of the already mentioned pin. The "extended" position and the various intermediate positions are then characterized by that the resulting wheelbase is different. The scooter 1, actually intended as a means of transport for people in urban areas, therefore also permits other uses. It is therefore suitable as a toy for children, and by changing the length of the footboard 3 and thus the wheelbase, the size of the scooter 1 can be adapted to the age and thus to the dimensions of the child. In this sense, it is advantageous if the handlebar 2, as already mentioned, consists of telescopic parts which can be pushed into one another and which can be fixed in several extension lengths

With the change in the wheelbase, the driving behavior of the scooter 1 changes. With a large wheelbase, certain steering angles of the front wheel cause smaller changes in the direction of travel than with a small wheelbase. This means that with a very small one

Wheel spacing requires greater skill to drive the scooter 1 This fact can advantageously be exploited in such a way that the scooter 1 can be used in addition to its main purpose as a means of transport for training the skill and thus as a sports device

It is therefore advantageous to provide an embodiment that allows the length of the running board 3 to be adjusted and fixed in an almost continuous manner. Such an embodiment is shown in FIG. 8. As in FIG. 7, the box-shaped parts 8 and 9 are telescopically displaceable one inside the other. A lever 51 which can be pivoted about a further axis of rotation 50 is arranged on the rear part and has a tooth-like division 52 on the side facing the rear part 9. On the rear part 9 there is also a catch 53, the pointed part 54 of which engages in the tooth-like division 52. The position of the rear part 9 relative to the front part 8 is fixed by the engagement of the pointed part 53 in the tooth-like division 52. A displacement of the rear part 9 relative to the front part 8 is not possible. This defines a certain length of the footboard 3 and thus also a certain wheelbase

If the length of the footboard 3 is to be changed, the pivotable lever 51 is rotated in the direction indicated by an arrow about the axis of rotation 50 by lifting the free end of the lever 51. Now there is no engagement of the pointed part 54 in the tooth-like division 52. Thus, the rear part 9 is displaceable with respect to the front part 8, so that the length of the running board 3 can be changed within given limits. If the desired length is reached, the lever 51 is again in the brought in the position shown in FIG. 8, in which the pointed part 54 engages in the tooth-like division 52. In order to achieve a secure engagement, it is advantageous if the catch 53 is movable to a limited extent 9 shows a cross section through a handlebar guide 6. An outer tube 60 with a square cross section and with rounded corners forms the outer part of the handlebar guide 6. In the center within the outer tube 60 there is an inner tube 61, which also has a square cross section with rounded corners Inner tube 61 is rigidly connected to the handlebar 2, not shown here, while the outer tube 60 is connected to the footboard 3, also not shown, via the parts not shown, such as attachment 31 and retaining bracket 34, between the inner wall of the outer tube 60 and the outer surface of the inner tube 61 there are four rubber elements 62 These are arranged in the four corners of the outer tube 60 and each touch the inner tube 61 in the middle of the flat side surfaces of the inner tube 61. In this arrangement, the inner tube 61 is rotated by 45 degrees in the rest position against the outer tube 60. The rubber elements 62 are in this order under a certain pressure

Because of the rigid coupling of handlebar 2 and inner tube 61 and footboard 3 with outer tube 60, each rotational movement on handlebar 2 causes the inner tube 61 to rotate relative to outer tube 60. A pressure is exerted on the four rubber elements 62, which leads to elastic deformation of the rubber elements 62 guides the rubber elements 62 therefore act like a return spring. The arrangement described is identical to the construction of the "rubber spring elements" from Rosta-Werk AG, Hunzenschwil, Switzerland

Such an embodiment is advantageous for the intended purpose for various reasons. The handlebar 2 and with it the front wheel 19 are automatically returned to the "straight ahead" position when the user of the scooter 1 does not have any force in the direction of rotation on the handlebar 2 via the handlebar 7 This automatically results in a stable straight-ahead run. It is also advantageous that the possible twist angle on both sides is limited to approximately 30 degrees. In view of the relatively small wheelbase of the scooter 1, this allows driving relatively tight bends without the risk of that the user of the scooter 1 falls down is also advantageous that the self-resetting when lifting the scooter 1 from the road, as is necessary when crossing sidewalk edges or stairs, the footboard 3 relative to the handlebar 2 has a defined position it is excluded that when lifting the scooter 1 from the road the Tr it board 3 dodges sideways and the rear part of the footboard 3 strikes against the feet or legs of the user The automatic reset, which is achieved with this type of handlebar guide 6, creates a stable position even when folded (FIG. 2), in which the wheel 19 cannot move uncontrollably.

10 shows a diagram of an arrangement of the mudguard 24 on the rear part of the footboard 3. The mudguard 24 is rigidly connected to a holder 70, which is fastened to a fastening point 71 on the underside of the footboard 3. The holder 70 and mudguard 24 consist of Spring steel. The fender 24 is thus not rigid. If the user of the scooter steps with his foot, namely for example with the heel of the shoe, in the direction indicated by an arrow against the mudguard 24, this deflects according to the force. On the side facing the wheel 21, the mudguard 24 carries a brake pad 72. Due to the aforementioned force, the brake pad 72 is pressed against the outer circumference of the wheel 21, which results in a braking effect due to the friction. This braking effect is sufficient to brake the scooter 1 when driving downhill on an inclined road. At the rear end of the running board, for example on the holder 70, a brake pad 73 is advantageously also fastened, which can be pressed directly against the road, for example by means of a pin 74 to be operated with the foot. This device leads to heavy braking, so it serves as an emergency brake.

Fig. 11 shows a cross section at the height of the rear wheel 21 Here it is shown that the brake pad 72 on the fender 24 advantageously has a shape corresponding to the contour of the wheel 21. This ensures that the braking surface is relatively large, so that on the one hand a good braking effect can be achieved, while on the other hand the wear can be kept within limits.

Fig. 12 shows a particularly advantageous folding connection in section, which can be used in the handlebar 2. It shows the hinge 15 between the first part 12 and the second part 13 of the handlebar 2. A first hinge half 80 is firmly inserted into the tube piece representing the first part 12 of the handlebar 2 by means of a cylindrical pin 81. The hinge half 80 also has a cup-shaped collar 82 which has a flat surface 83 on the side facing away from the first part 12. In the same way, a second hinge half 85 is firmly inserted on the second part 13 of the handlebar 2 by means of a cylindrical pin 86. Analogously, the hinge half 85 has a cup-shaped collar 87 which is flat on the side facing the second part 13 Flat 88 has The two hinge halves 80, 85 are pivotable against each other about the axis 17, which is indicated in the figure by an arrow

In the second hinge half 85, a pawl 89 is arranged, which is held in an end position by a compression spring 90. By manual pressure on a release button 91 firmly connected to the pawl 89, the pawl 89 can be moved against the compression spring 90

12 shows the state in which the first 12 is movable relative to the second part 13. If the second part 13 is moved in the direction indicated by an arrow, the edge of the pawl 89 meets the cup-shaped collar 82 of the first hinge 80 As a result, the pawl 89 is deflected against the action of the compression spring 90, so that the pawl 89 can penetrate into the cup-shaped opening. The cup-shaped collar 82 has an undercut 92 on its inside, into which the pawl 89 engages as soon as the flat surfaces 83 and 88 lie together. The pawl 89 thus engages behind the undercut 92 and is held in this position by the pressure of the compression spring 90. As a result, the two parts 12 and 13 of the handlebar 2 are rigidly connected to one another.

In order to release this rigid connection again, a manual pressure on the release button 91 is required. This moves the pawl 89 against the compression spring 90 and the engagement of the pawl 89 on the undercut 92 is released. The two hinge members 80 and 85 are consequently, consequently also the two parts 12 and 13 of the handlebar 2, pivotable against each other about the axis 17, so that the handlebar 2 can be folded.

The two flat surfaces 83 and 88 preferably form a right angle to the axis of the parts 12 and 13 of the handlebar 2. However, different angles can also be provided if the intention is that the parts 12 and 13 of the handlebar 2 are somewhat angled relative to one another, as shown in FIG. 1

The folding connection shown in FIG. 12 can also be used in the same way for other connections, namely between the second part 13 and the third part 14 (FIG. 1) of the handlebar 2 and for the handlebar halves 25 ^' and 25 "(FIGS. 3a and 3b) , whereby the legs 28 ^' and 28 ^' and the locking sleeve 23 can be omitted 13 to 17 details of an alternative embodiment of the connection between the handlebar 2 and the footboard 3 are shown.

13 shows a perspective view of the two mounting brackets 34 attached to the footboard 3. The reference number 94 denotes the front edge of the footboard 3, on which (in contrast to the illustration in FIG. 4) the shoulder 31 of the handlebar guide 6 ( Fig. 4) strikes when the handlebar 2 is raised, which corresponds to the operating position for driving. This front edge 94 can advantageously be covered with an elastomer strip. This ensures that the handlebar 2 is cushioned in the operating position for driving against the footboard 3, which increases driving comfort on uneven road surfaces. The axis 32 (FIG. 4), not shown here, engages in two holes 95 in the holding brackets 34, about which the handlebar 2 can be rotated relative to the running board 3. Between the two retaining brackets 34, the shoulder 31 (not shown) of the handlebar guide 6 (FIG. 4) engages. In one of the retaining brackets 34 there is a through bore 96, the axis of which runs parallel to the axis 32, not shown. In one bracket 34, a slot 97 is also provided, into which the locking pin 33 (FIG. 4) attached to the extension 31 (FIG. 4) penetrates when the handlebar 2 is raised relative to the running board 3 to the position for driving the Take Rollers.

An insert 98 shown in FIG. 14 can be inserted into the bore 96 from the side with the slot 97. This insert 98 has a cylindrical lateral surface 99 which is matched to the bore 96 (FIG. 13). The insert 98 is rotatable in the bore 96. It has a groove 100 into which the locking pin 33 (FIG. 4) can engage when the insert 98 is in the bore 96 in a position in which the groove 100 is aligned with the slot 97. The insert 98 has a hexagon 101 on the side opposite the groove 100. In addition, there are, for example, three depressions 102 on the lateral surface 99, the function of which will be described later.

FIG. 15 shows a lever 105 which can be inserted into the bore 96 (FIG. 13) from the outside. This lever 105 consists of a lever arm 106 and a cylindrical part 107, the diameter of which is adapted to the bore 96. On one side, the cylindrical part 107 has a hexagon socket 108 which, when the lever 105 and the insert 98 are mounted on the retaining bracket 34 with the bore 96, engages in the hexagon 101 of the insert 98 (FIG. 14). A rotation of the assembled lever 105 thus leads to a corresponding rotation of the insert 98 in the bore 96 (FIG. 13). 16a to 16c, three positions of the lever arm 106 are shown. In the three figures, the reference symbol w ₃ denotes a movement line along which the locking pin 33 attached to the extension 31 of the handlebar guide 6 (FIG. 4) moves when the handlebar 2 is pivoted relative to the running board 3. The rotation of the lever arm 106 also rotates the insert 98 because the hexagon 101 of the insert 98 (FIG. 14) engages in the hexagon socket 108 of the lever 105 (FIG. 15) as mentioned.

16a, the lever arm 106 points to the top right. In this first position, the groove 100 of the insert 98 extends in such a way that the locking pin 33 can penetrate the groove 100 as it moves along the movement line W ₃₃ . As previously mentioned, the groove 100 is aligned with the slot 97 (FIG. 13). With a line 1 10 there is one

Path limitation drawn in, which arises from the fact that the approach 31 is present at the front edge 94 of the footboard 3.

When the first position shown in FIG. 16a is reached, in which the locking pin 33 lies against the base of the groove 100, the lever arm 106 can be rotated clockwise until it assumes a second position, shown in FIG. 16b, in which the lever arm 106 points vertically downwards. Because of the coupling of lever 105 and insert 98, groove 100 now also points vertically downward. Thus, the locking pin 33 is blocked because it can no longer move along the line of motion w ₃₃ . Thus, the handlebar 2 (Fig. 4) can no longer be folded down. The lever arm 106 is advantageously of such a length that in this position it almost touches the ground on which the scooter stands. It is thereby achieved that the lever arm 106 can simultaneously be used as a stand for the scooter.

From the position of FIG. 16b, the lever arm 106 can be rotated further clockwise until it has a third position shown in FIG. 16c. In this position too, the locking pin 33 is blocked because, on the one hand, it cannot move along the movement line w ₃₃ and, on the other hand, that already mentioned with the line 110

Path limitation is effective. In this position, the lever arm 106 lies horizontally and thus parallel to the running board 3 (FIG. 4). This third position is the normal driving position for the scooter.

The depressions 102 located on the outer surface 99 of the insert 98 had been mentioned in connection with the explanation of FIG. 14. 17 shows how these depressions 102, in cooperation with a ball 11 1 and a compression spring 112, develop a locking effect. Ball 1 1 1 and compression spring 1 12 are within a bracket 34 arranged. Such detents are known. Three depressions 102 are arranged on the lateral surface 99 in such a way that for each of the three positions of the lever arm 106 according to FIGS. 16a to 16c there is such a locking effect.

The roller 1 is advantageously predominantly made of lightweight materials, so that the overall weight is low. This makes it easy for the user to pass it on

Carrying obstacles such as stairs and taking them along in public transport facilities such as buses or trams.

Claims

claims

1. Foldable scooter with a footboard (3), one at the front end of the footboard (3) by means of a connecting piece (5) and a handlebar guide (6) attached handlebar (2), the handlebar (2) opposite the footboard (3) Can be rotated about an axis (4), characterized in that both the footboard (3) and the handlebar (2) consist of several individual parts (8, 9, 12, 13 14) and means (10, 15, 16) have, through which they are mutually changeable in their position, so that the footboard (3) and the handlebar (2) can be reduced in length

2. Roller according to .Anspruch 1, characterized in that the footboard (3) consists of at least two parts (8, 9) which are connected by means of a first hinge (10), whereby one of the parts (8, 9) opposite the other of the parts (9, 8) is pivotable by approximately 180 degrees.

3. Scooter according to claim 1, characterized in that the footboard (3) consists of at least two parts (8, 9) which can be pushed telescopically into one another

4. Scooter according to claim 1, characterized in that the handlebar (2) consists of at least two parts (12, 13, 14), each two parts (12, 13, 13, 14) by means of a device with an axis ( 17) as an axis of rotation, for example each of a further hinge (15, 16), are connected, whereby two parts (12, 13, 13, 14) can be pivoted relative to one another by approximately 180 degrees

5. Roller according to claim 3, characterized in that means (50, 51, 52, 53, 54) are present, by means of which the two parts (8, 9) can be adjusted and fixed approximately continuously in relation to one another.

6. Roller according to claim 2, characterized in that a rubber block (45) is arranged between the mutually facing ends of the two parts (8, 9) of the running board (3)

7. Roller according to one of claims 1 to 6, characterized in

- That the connecting piece (5) consists of an attachment (31) rigidly connected to the handlebar guide (6) and two holding brackets (34) connected to the running board (3),

- That at this approach (31) there is an axis (32) which engages in holes in the retaining bracket (34), - that a locking pin (33) is attached to the approach (31), - That a locking lever (36) which is rotatable about a further axis of rotation (35) is arranged on the footboard (3),

- One leg of which is designed as a pawl (37) which, in one position of the locking lever (36), engages around the locking pin (33) and thereby fixes the handlebar (2) with respect to the running board (3).

8. Roller according to claim 7, characterized in that the locking pin (33) on the neck (31) in different positions (39 ', 39 ^" , 39 ^'" ) can be attached

9. Roller according to claim 7, characterized in that a lever (105) is rotatably arranged on one of the retaining bracket (34), that this lever (105) with an in the bore (96) of the retaining bracket (34) mounted insert (98th ) cooperates, which has a groove (100) into which the locking pin (33) can penetrate when the lever (105) and insert (98) assume a first position, and in which the locking pin (33) is blocked when lever ( 105) and insert (98) assume a second or a third position.

10. Scooter according to one of claims 1 to 9, characterized in that - the handlebar (7) consists of two handlebar halves (25 ^' , 25 ") which are rotatable about a further axis (26),

- That each handlebar half (25 ^' , 25 ") has a shorter leg (28 ^' , 28 ^" ) and a longer leg (27 ^' , 27 "), at the end of which a handle (22) is attached,

- That the handlebar halves (25 ^' , 25 ") are rotatable about a further axis (26) connected to the handlebar (2), and

- That the shorter legs (28 ', 28 ") can be fixed in position by means of a locking sleeve (23) which can be displaced on the handlebar (2).