DE3414204A1 - Small vehicle, in particular for disabled persons - Google Patents

Abstract

The small vehicle has a self-bearing body (1) which forms the chassis and the panelling, has at the front upwardly extending side parts (2a) as a leg protection for the disabled person and is made of plastic, with four wheels (5, 6) which are of equal size, have the same lateral wheel spacing and protrude laterally and at the front and rear over the base shape of the vehicle body. These four wheels (5, 6) are mounted individually suspended in the vehicle body and are each individually motor-driven. In the seating space of the vehicle body (1), a seat (35) is provided so as to be adjustable by motor in the horizontal plane. On the vehicle body (1), a weather and sun protection means (29) which is located at the top and is formed by a collapsible roof made of flexible awning is mounted in a removable fashion, and a front-side weather protection made of a preform or a flexible awning is mounted in a removable fashion at the entry point (4) to the vehicle body (1). A receptacle space for a battery, which space can be closed off by means of flap (27), is formed in at least one side wall (2) of the vehicle body (1). <IMAGE>

Description

Dlpl.-lng.Dr.-lng. HEINZ NICKELS · Dlpl.-Phys. LORENZ HANEWINKEL This. File: L 51/1 Horst Lindenkamp, Bergstrasse 38, 497o Bad Oeynhausen

"Small vehicle, especially for the disabled"

The invention relates to a small vehicle, particularly for the disabled.

Vehicles for the disabled are available in a wide variety of designs than manual or motor-driven wheelchairs that are rigid or foldable in themselves have become known.

The disadvantage of these raw chairs is on the one hand that they are limited in their range of motion, that is, for the most part can only be used on level roadways and are not also suitable in the field, and on the other hand in that Inadequate protection of the recorded person, especially in the leg area and against the effects of the weather.

Also, the disabled have due to the familiar vehicles their wheelchair character a certain antipathy and do not give the handicapped the desired freedom of movement in a large area of movement.

3AU204

The object of the invention is therefore to create a small vehicle, especially for the disabled, which no longer has the character of a wheelchair, but the handicapped person is secured against bodily harm and protected against external weather influences and a vehicle for the handicapped person in the large area of movement and on a wide variety of roadways (flat roads and also in the field), whereby the disabled person without strangers Help can move independently and freely.

Another object of the invention is in a simple and stable Execution of the vehicle frame with favorable wheelbase and wheel training as well as wheel bearings and drive seen, which should give the vehicle a high level of driving comfort.

A further object of the invention is to equip the vehicle with a simply constructed and easy-to-use weather protection which, however, does not give the disabled person an oppressive feeling.

In addition, a further task is seen in a simple seat adjustment that is easy to use by the disabled person.

Another object of the invention lies in a conveniently constructed lifting device with which the seat can be converted from the small vehicle into a room wheelchair.

Finally, it is the object of the invention to provide a simply constructed cleaning device for the wheels of the small vehicle, with the Driving through the vehicle the wheels can be cleaned automatically.

According to the invention, these objects are achieved by the characterizing features of claim 1 and the subsequent subclaims solved.

The subject matter of the invention extends not only to the features of individual claims, but also on their combination.

Through the invention, a small vehicle for the disabled has been created, which no longer has the character of a wheelchair and thus reduces the antipathy for use by the disabled. This small vehicle takes the Disabled people secured against physical injuries and protected against external weather influences and gives the disabled a great freedom of movement on a wide variety of road surfaces, both on flat stretches and off-road. With this vehicle the disabled can get around without outside help Move freely and safely over long distances.

The body is made of self-supporting plastic and includes in the chassis and the fairing in one molded part; Due to this design and the choice of materials, the body is very easy to care for.

All four wheels are with their outermost points in front, behind and to the side beyond the body, so that no damage to the vehicle itself or to foreign parts can occur through the body, but impact or Start-up points are intercepted by the wheels. The disabled person's legs and feet are behind the outermost edge of the front wheels when driving, protecting them and when bumping into a foreign object cannot be jammed.

Since all wheels are individually suspended from the body with shock absorption, is a better grip and thus a higher driving comfort achieved.

Each wheel is driven by its own motor, which gives the vehicle a unique feel All-wheel drive gives, which is particularly favorable on inclines and off-road has an effect and is guaranteed to continue driving even if a drive fails.

All wheels have the same size and are in a favorable ratio to the vehicle height formed diameter, which also supports the grip and driving comfort.

On the vehicle is an upper, roof-like and a lower front Weather protection arranged removably, which protects the disabled against external weather influences and also serves as sun protection.

With this weather protection, which is only open at the front, the disabled person is protected against drafts Protected and yet there is no oppressive feeling in the handicapped, since sufficient oxygen supply is guaranteed and the handicapped one has a good view.

Another advantage is the seat adjustment in the horizontal plane in and against the direction of travel, which makes getting in and out of the vehicle for the disabled is facilitated and the disabled in the front seat position good freedom of movement and good access to telephone booths, in rooms, when shopping and the like.

The seat is still removably stored in the body and can be Using a simply constructed and safe-looking lifting device that can be operated by the handicapped, the handicapped person sitting on the seat can be lifted out and fed to a room wheelchair and vice versa.

In the body there is a receiving space for a battery molded, which receives the battery in a secured position; the flap also serves as a support surface during insertion and removal for the battery, which results in easy handling. This battery forms the energy source for all electrical devices provided on the small vehicle.

A simply constructed cleaning device enables when driving through an automatic cleaning of the wheels.

An essential idea of the invention is seen in the combination of the vehicle features that result in an optimal small vehicle; but also the individual basic features, namely body design, wheel arrangement and training, wheel suspension, all-wheel drive, weather protection, seat adjustment, battery storage, lifting device and cleaning device are individual independent inventive ideas.

With reference to the drawings, exemplary embodiments according to FIG Invention explained in more detail. It shows:

Fig. 1 is a perspective view of a small vehicle, in particular for Disabled, with self-supporting plastic body, adjustable seat and removable weather protection,

Fig. 2 is a side view of the small vehicle with individually on the body suspended and individually motor-driven wheels that protrude beyond the body at the front and rear,

Fig. 3 is a front view of the small vehicle with the side over the body protruding wheels,

4 shows a side view of the independent wheel suspension and the independent wheel drive of the front wheel,

5 shows a section through the independent wheel suspension and the independent wheel drive of the front wheel according to section line I-I in Fig. 4,

6 shows a side view of the independent wheel suspension and the independent wheel drive of the rear wheel,

7 shows a section through the independent wheel suspension and the independent wheel drive of the rear wheel according to the section line IUH in Fig. 6,

8 shows a side view of the small vehicle with seat adjustment and battery receiving space,

9 shows a front view of the small vehicle with seat adjustment and battery receiving space in partial section;

Fig. Io is a side view of the small vehicle with lifting device for the Seat,

11 shows a plan view of the lifting device with a small vehicle and an assigned wheelchair,

Fig. 12 is a cross section through a cleaning device for the wheels of the Small vehicle.

With 1 is a one-piece, composed of at least two shells, self-supporting and at the same time the chassis with cladding forming body made of plastic, preferably rigid foam, of the small vehicle according to the invention, in particular for the disabled, referred to, which is equipped with integrated and molded bearing and fastening parts and forms a seating area for the disabled person.

It is also preferred in the body manufacture for the later Storage and fastening points to provide large recesses into which the real bearing and fastening parts are subsequently pressed or fitted be poured.

The body 1 has flat, inherently smooth outer walls (two side walls 2 and a rear wall), the two side walls 2 merging into the rear wall by roundings 3; At the front, the body 1 forms an entry and exit 4 (see FIG. 1). On the body 1, four wheels 5, 6 are mounted, all of which are of the same size (have the same diameter) and whose lateral wheel spacing is also the same. These wheels 5,6 engage in molded (retracted) wheel arches 7 of the body 1, the wheels 5,6 being mounted on the body 1 in such a way that the laterally outward and forward or backward over the basic body shape, which is U-shaped in plan view with a base la, protrude laterally at a distance "X" and to the front or rear at a distance ¹¹ Y ". Of the four wheels 5, 6, the two rear wheels 6 are designed to be steerable; all four wheels 5, 6 are individually suspended from the body 1 and are driven individually.

The wheels 5, 6 are with their wheel axles 5a, 6a in the normal state with the Body floor la about the same height. The diameter of the wheels 5.6 corresponds approximately to the height distance between the body floor la and the seat surface height.

The independent suspension and the independent wheel drive (all-wheel drive) is from the FIGS. 2 to 7 can be seen.

Each of the two front wheels 5 is rotatably supported by its wheel axle 5a a rocker arm 8 formed from a box, the rear end of which is supported in a horizontal pivot axis 9 on the body 1 and at the front end of its length in a horizontal pivot axis Io The shock absorber 11 acts in an articulated manner, which is held above the front wheel 5 in a horizontal bearing axis 12 so as to be pivotable on the body 1. the The wheel axis 5a is at a smaller distance from the shock absorber pivot axis Io as arranged to the swing pivot axis 9; all four axes 9,5a, lo, 12 run parallel to one another.

In the box-shaped rocker 8, an electric drive motor 13 is protected, which with its entire training within the Rocker 8 is and is connected to the wheel axle 5a in terms of movement.

Each of the two rear wheels 6 is rotatably supported by its wheel axle 6a a rocker 14 formed by a U-profile. In the body 1 (in Wheel arch 7) is pivotably mounted about a vertical axis 15, a link 16, which is preferably formed by an obtuse-angled steering arm arranged in a vertical plane. The rocker 14 stands with its forward (in Direction of travel) showing the end of the length over a horizontal pivot axis 17 with the obliquely downward and forward-facing lever arm of the link 16 in Pivot connection and at its rear end length is held in a horizontal pivot axis 18, one end of a shock absorber 19, which with its other (upper) end is in a horizontal pivot axis 2o with the horizontal lever arm of the link 16 in connection. The pivot axes 2o, 18, 6a, 17 run parallel and the wheel axis 6a is less spaced from the shock absorber pivot axis 18 than from the handlebar pivot axis 17.

An electric drive motor 13 is connected to the wheel axle 6a of each rear wheel 6 connected in terms of movement in the rocker arm 14 and which partially protrudes upward from the U-shaped rocker arm 14. The two themselves opposite rockers 14 of the rear wheels 6 are coupled by a connecting rod 21 in the steering movement for the rear wheels 6, wherein this connecting rod 21 in the area of the rocker pivot axes 17 in each case in a vertical pivot axis 22 on the rocker 14 in an articulated manner.

Due to the rockers 8, 14 and the shock absorbers 11, 19 are all four wheels 5.6 individually suspended and dampened in the vertical direction, pivotable on the Body 1 mounted, each wheel 5, 6 being driven by its own electric drive motor 13, which is preferably designed as a geared motor. The small vehicle is steered via the rear wheels 6, which are synchronized by the connecting rod 21 articulated between their rockers 14. The rockers 8, 14 are preferably made of metal, preferably sheet steel. However, they can also be made from plastic.

As an energy source for the drive motors 13 and all devices to be electrically supplied, such as lamps 23, the switching and control device 24 and the like, at least one battery 25 is provided which is removably held in a receiving space 26 formed in the body 1, namely at least one side wall 2 (see FIGS. 8 and 9). This retracted, box-shaped receiving space 26 is closed on the outside by a hinged flap 27. In the receiving space 26 guide strips 28 or the like are fastened or by screws or the like integrally formed over which the battery 25 engages with corresponding guide grooves. Through these guide strips 28 and the box shape of the receiving space 26, in which the battery 25 encloses with a certain amount of play, and the closable flap 27, the battery 25 is positionally fixed in the receiving space 26 without any further securing means. The flap 27 can be swiveled into a horizontal position (FIG. 9) and is locked in this position, for example by Locking means within its pivot axis 27a or by holding rods, so that the battery 25 can be pulled out when changing onto this flap 27 and then easily removed from the flap 27 and vice versa when the battery 25 is inserted into the receiving space.

From Fig. 1 to 3 a weather protection 29.3o can be seen, which the seating area for covers the disabled person laterally, above and behind and in the leg and stomach area, so that the disabled person is free with his head and chest area in the direction of travel, that is, the weather protection 29.3o forward is open.

The upper one that covers the two sides, back and top, of the seating area Weather protection 29 is formed by a flexible and preferably at least partially transparent tarpaulin 31 made of plastic, which is held on U-shaped swivel brackets 32 and with these a collapsible hood-shaped Roof forms. The swivel brackets 32 run together in a common swivel bearing 33 in the two sides of the body 1 and are with this Pivot bearing 33 detachably held in a corresponding recess in the side walls 2. The rear bracket 32a is fixed in an approximately upright plane and is held removable by a plug connection in the rear wall 2. The swivel bracket 32 can be pivoted back in the direction of the rear bracket 32a and take the tarpaulin 31 while being folded, so that the roof-shaped weather protection 29 can be folded flat on the back of the Body 1 is up and the seat area is exposed upwards and on both sides.

If the weather protection 29 is required, the swivel brackets 32 are moved forward into the position shown in FIG. 2, with the tarpaulin 31 being entrained and tensioned pivoted about their pivot bearings 33 and then locked, for example by locking means in the pivot bearings 33. This pivoting of the weather protection 29 into the use and non-use position can be motorized a lever linkage 34 take place (Fig. 2), which can be operated from switching point 24 by the disabled person and its drive motor (not shown) is also supplied by the battery 25.

When the weather protection 29 is not in use, it is removed from the body 1 removed, with a detachment of the pivot bearing 33, the rear fixed bracket 32a and the connection between the pivot bearing 33 and lever linkage 34 is possible with a few movements by plug connection.

It is preferable to have the upper and rear portions 31 a of the weather protection 29 to be provided from opaque film or the like and to make only the side parts 31b transparent and to make them separable from the area 31a by zippers, snaps or the like, so that at removed side parts 31b of the weather protection 29 (31a) forms a pure sun protection.

The lower weather protection 3o in the front area of the body 1 is from a molded part made of plastic, preferably inherently dimensionally stable and opaque plastic, and is formed by plug-in and / or snap-in connection or held detachably by hanging on the edges of the front raised front parts 2a of the side walls 2. The weather protection is designed as a curved plate or as a flexible transparent or opaque tarpaulin and extends from the control panel 24 arranged in the abdominal area of the seated person at an angle forwards and downwards to the body floor la, so that it covers the entry 4 and the legs of the disabled are. When designed as a tarpaulin 3o this is held releasably on the front share 2a by zippers, snaps or the like.

The seat 35 is mounted in the body 1, preferably continuously adjustable, in the horizontal plane in and against the direction of travel. For this, in the body 1 in addition to the side walls 2 guides 36, preferably guide rods, fixed and that in molded onto the body 1 Bearing eyes 37. On these guides 36 strut-shaped or plate-shaped cross members 36a are guided displaceably by means of bearing sleeves 39, on which an im Cross-section of U-shaped support part 38 fixed in position and removably supported and is displaceable with the cross members 36a. A threaded spindle 4o extending in the direction of travel is arranged under the cross members 36a, which with its rear end is connected to an electric drive motor 41 and by this held on the body 1 drive motor 41 and a front end bearing eye 42 of the body 1 is rotatably mounted. One arranged in the rear end region of the support part 38 and connected to it as well as lock nut 43 engaging around threaded spindle 4o causes the support part 38 to be displaced thereon when the threaded spindle 4o is rotated resting seat 35, so that the seat 35 can be moved from its rear driving position into a front entry and exit position (see FIG. 8, solid and dash-dotted lines). Instead of the threaded spindle 4o, a toothed rack and a pinion interacting with it can also be used for the seat adjustment. The drive motor 41 is also supplied by the battery 25 and operated from the control panel 24.

In the forward position of the seat 35, the drives 13 are the Wheels 5,6 blocked (stopped), so that driving is impossible and the disabled is secured when getting in and out.

The seat 35 can be equipped with a leg and footrest 44. In Fig. Io and FIG. 11 shows a lifting device 45 for the seat 35, with which the Seat 35 uas lifted out of the small vehicle and fed to a normal wheelchair (room wheelchair) 57 for the disabled and placed therein can and vice versa.

This lifting device has one on the driving plane of the small vehicle attachable frame 46, which lies with its longitudinal direction transversely to the previous direction of travel of the small vehicle in front of the same (the entrance 4). on this frame 46 is provided in parallel guides 47 a lifting table 48, preferably in the form of a scissors table that can be moved in height, so that it can be moved transversely to the small vehicle, this displacement movement of the lifting table 48 via a threaded spindle 49 rotatably mounted in the frame 46, which is driven by an electric drive motor 5o is rotated and is in motion with the lifting table 48, he follows.

The height movement of the lifting table 48 is also controlled by an electric Drive motor 52 made, the drive motor 51 on the lifting table lower part 48a and the associated, transverse to the displacement direction of the lifting table 48 extending threaded spindle 52 is connected to the scissors 48b in its lower region. The scissors 48b are articulated on the underside Lower part 48a and mounted displaceably in a guide 53 of the lower part 48a and also articulated at the top in the upper part 48c of the scissors table and in a guide 53 guided displaceably, so that a moving apart and together of the scissors members of the scissors 48b is possible. To the Scissor table upper part 48c, two lateral support arms 54 are attached so that they can be swiveled apart and together, which enclose with support projections 55 in lateral recesses 56 of the support part 38 and slide it onto the Guides 36 lift off the cross members 36a held. For this purpose, the support arms 54 can move into the entrance 4 between the side wall 2 and the seat 35 so that they can engage with their support projections 55 in the recesses 36 made in the upwardly directed U-legs of the support part 38.

34H20A

Due to the support arms 54 captured by the support part 38, the support part 38 is with it The seat 35 is lifted off the cross members 36a, moved out of the body 1 and to the wheelchair 57 standing to the side of the small vehicle driven there and deposited there with the support part 38 in the indoor wheelchair 57 - the same process is carried out in reverse when removing the Seat 35 from the wheelchair 57 and insertion into the small vehicle.

The transfer of the seat 35 takes place with the person occupying the seat 35 and the lifting device 45 can also be operated by the handicapped himself via a control device (not shown).

The frame 46 is suitable for both small vehicles and wheelchairs 57 equipped with bottom-side counter skids 46a for the front wheels 5, so that as a result, both vehicles can be approached and then fixed in position in relation to the lifting device 45.

Fig. 12 shows a cleaning device for the wheels 5, 6 of the small vehicle. There; This small vehicle has good driving characteristics on all roads and off-road due to its design, the wheels are 5.6 often soiled and must be cleaned before bringing in or parking in the house.

For this purpose, at least one, preferably two, arranged next to one another according to the lateral wheel spacing of the wheels 5, 6, is in cross section U-shaped and with their U-opening upwardly pointing rails 58 are provided, which are on the inside of their legs and the web with brushes 59 are busy. A connection 6o for a water hose 61 is provided on each rail 58, through which water into the U-space and thus into the Brushes 59 of the rails 58 is directed.

During the passage of the wheels 5, 6 through the running rails 58 these are automatically cleaned by the brushes 59 and the incoming water.

In Fig. 12 only one running rail 58 is shown, but the second Running rail 58 is of the same design and both running rails can be connected to one another in a detachable manner by means of suitable spacers and can be connected to one another in an adjustable manner.

From the control panel 24, the disabled person operates all functions of the vehicle, namely forward and backward travel, steering, seat adjustment, weather protection adjustment 29, lighting and all these facilities are over electrical lines connected to the control panel 24 and the battery 25.

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Claims (1)

34H204 Claims 1. Small vehicle, especially for the disabled, characterized by a Self-supporting body (1) made of plastic, preferably rigid foam, with four equally large and the same lateral wheel spacing Wheels (5,6) which protrude laterally and to the front as well as to the rear beyond the basic body shape. 2. Small vehicle according to claim 1, characterized in that daft the body of the vehicle frame forming with casing (1) to form the seating area and possible company (4) a U-shaped basic shape with the outside smooth side and rear walls (2) and bottom (la ) and molded wheel arches (7) for the four wheels (5,6). 3. Small vehicle according to claim 1 and 2, characterized in that the two side walls (2) on the front side have laterally raised front parts (2a) and merge into the rear wall via rounded portions (3). 4. Small vehicle according to claims 1 to 3, characterized in that the wheels (5,6) with their wheel axles (5a, 6a) are approximately at the same height as the body floor (la) and have a diameter which is approximately the height distance between Corresponds to the body floor (la) and the height of the seat surface. 5. Small vehicle according to claims 1 to 4, characterized in that all four wheels (5, 6) are individually suspended from the body (l) and are each equipped with their own motor drive (13) and the two rear wheels (6) are steerable are executed. -nf- 34U2LU 6. Small vehicle according to claim 5, characterized in that as β of each of the two front wheels (5) with its wheel axle (5a) on a formed from a box profile rocker (8) rotatably supporting the rear with its in the direction of length of the end in a horizontal pivot axis (9) mounted on the body (l) so that it can be swiveled in height and with its in Direction of travel at the front end of the length via a horizontal swivel axis (10) with a shock absorber pivotably supported on the body (1) (11) is connected (Fig. 2 to 5). 7. Small vehicle according to claims S and 6, characterized in that S is an electric drive motor, preferably geared motor (13) is mounted in each swinging arm (8) of the two front wheels (5) which communicates with the front axle (5a) in motion excessive compound (Figures 2 to 5). 8. Small vehicle according to claim 5, characterized in that as S of each rear wheel (6) formed with its wheel axle (6a) to a U profile of a rocker (14) is rotatably mounted, the front with its in the direction of travel length end on a horizontal pivot axis (17) is mounted on a handlebar (16) pivotable in height about a vertical axis (15) on the body (1) and with its rear end in the direction of travel via a horizontal pivot axis (19) with a shock absorber pivotably supported on the handlebar (16) (19) is articulated (Fig. 2,3,6 and 7). 9. Small vehicle according to claim 5 and 8, characterized in that in each rocker (14) of the two rear wheels (6) an electric drive motor (13), preferably a geared motor, is mounted, which partially consists of the U-profile of the rocker (14) protrudes upwards (Fig. 6). lo. Small vehicle according to claims 5 and 9, characterized in that as β of the rear wheels (6), the two rear wheels (6) is articulated in the steering movement synchronously controlling connection rod (21) between the two rockers (14) (Fig. 7). 34-204 11. Small vehicle according to claims 5 to lo, characterized in that the rockers (8, 14) are each made in one piece from plastic or metal, such as sheet steel. 12. Small vehicle according to claims 1 to 11, characterized in that as β at least in one side wall (2) of the body (1) through a Flap (27) closable receiving space (26) for a battery (25) is formed, this receiving space (26) integrally formed or fastened by means of screws or the like guides (28), preferably in Grooves of the battery (25) engaging strips for fixing the position of the battery (25) received and the hinged flap (27) in the horizontal plane pivoted and locked position a support wall for the to be removed or inserted Battery (25) forms (Fig. 8 and 9). 13. Small vehicle according to claims 1 to 12, characterized in that the body (l) with an upper weather protection formed by a hood-shaped, collapsible roof (29) and an entry-side, formed by a molded part or a flexible tarpaulin lower weather protection (3o ) is equipped, both of which are detachably held on the body (1) by plug-in and / or snap-in connections, hanging, zippers, snaps or the like (FIGS. 1 to 3). 14. Small vehicle according to claim 13, characterized in that the upper weather protection (29) of several, U-shaped brackets (32) and a flexible tarpaulin (31) held thereon made of preferably at least partially transparent plastic with snap fasteners, zippers or the like detachable side parts (31b) is formed, with a bracket (32a) held firmly but releasably on the body (l) and the other brackets (32) in lateral pivot bearings (33) on the body (1) (Fig. 1 and 2). 15. Small vehicle according to claim 12 and 13, characterized in that the movable bracket (32) of the upper, the seat area surrounding up to the front side of the weather protection (29) via a lever linkage (34) or -yr- like motorized in the position of use and in the seat area The releasing folds can be pivoted (Fig. 2). 16. Small vehicle according to claims 13 and 15, characterized in that the front weather protection (3o) is formed by a curved plastic part or a flexible tarpaulin extending from the body floor (la) to the raised side parts (2a) of the body ( 1) extends (Fig. 2 and 3) and is releasably held on the body (l) by a zipper, press studs or the like. 17. Small vehicle according to claims 1 to 16, characterized in that the seat (35) in the horizontal plane in and against the direction of travel of the small vehicle in a limited length range is continuously adjustable by motor in the body (l) (Fig. 1 and 8 ). 18. Small vehicle according to claim 17, characterized in that S is in the seating space in the body (1) guides (36), preferably in bar form, held, on which a plate-like or web-like cross member (36a) by means of the threaded spindle (4o) and electric Drive motor (41), both of which are held on the body (1), can be displaced steplessly and detachably accommodates a support part (38) with a U-shaped cross-section with a seat (35) arranged thereon. 19. Small vehicle according to claims 1 to 18, characterized by the Support part (38) with seat (25) grasping and removing from the body (1) and a lifting device (45) (FIGS. 10, 10 and 11) which transfers the lifting device (45) to a wheelchair (57) arranged next to the small vehicle. 20. Small vehicle according to claim 19, characterized in that there 8 erectable the lifting device (45) one on the road ahead of the entry (4) of the small vehicle and the adjacent stationary wheelchair (57), counter driving skids (46a) for fixing the position of the front wheels (5) of -ie '. 3AU20A Small vehicle and the wheelchair having frame (46) and a then a lifting table (48) which can be moved transversely to the small vehicle by means of a threaded spindle (49) and an electric drive motor (5o), preferably has a height-adjustable scissor table via a threaded spindle (52) with an electric drive motor (51), which has two support projections (55) in lateral recesses (56) of the support part (38) releasably enclosing support arms (54) (Fig. Io and 11). 21. Small vehicle according to claims 1 to 2o, characterized by a Cleaning device for the wheels (5, 6) of the small vehicle, which has at least one, preferably two spaced apart, U-shaped in cross-section and with its U-opening facing upwards pointing. Has running rails (58) for the wheels (5,6), which are covered on the inside with brushes (59) and a connection (6o) for one Have water hose (61) (Fig. 12).