EP1241298A2 - Vehicle, especially for cleaning beaches - Google Patents

Abstract

The vehicle frame is divided into a front section (1) and a rear section (2), which are connected to each other by a buckle bearing (3) with vertical axis (K). A steering is provided for the rear wheels of rear axle (5) and one is also provided for the front wheels of the front axle (4). The vehicle drive may be a hydrostatic or electric all-wheel drive. The drive may also be a hybrid all-wheel drive in the form of a diesel-electric drive.

Description

The invention relates to a vehicle, in particular for beach cleaning, with a Vehicle frame on which a front wheel axle and a rear wheel axle are arranged.

Such a vehicle is known from EP 0 387 794 B1. The vehicle is used for beach cleaning and has a vehicle frame on which one Front wheel axle and a rear wheel axle are arranged. The vehicle is driven by a hydraulic drive that on at least one of the two Axes works. The vehicle frame is rigid. The wheels of the front wheel axle steering is assigned.

The object of the invention is to provide a vehicle of the type mentioned create that has good mobility and maneuverability.

This object is achieved in that the chassis in a front section and a rear section is divided by an articulated bearing vertical steering axis are interconnected. In contrast to the state of the Technology is not the vehicle frame in the vehicle according to the invention rigid, but designed as an articulated frame. This causes the vehicle to point good agility and maneuverability. In a particularly preferred Embodiment, the vehicle is used for beach cleaning and has a relatively small vehicle width. Due to the good mobility and maneuverability using the articulated steering defined by the articulated bearing, this can be done Vehicle also narrow, strongly and abruptly changing routes perform, in particular also used between beach chairs of a beach become.

In one embodiment of the invention, the rear wheels of the rear wheel axle are one Steering assigned. This increases the agility and maneuverability of the Vehicle further improved. The rear wheel steering is preferably a steering knuckle steering designed.

In a further embodiment of the invention, the front wheels are the front wheel axle provided with a steering. This allows both the front and the rear wheels can also be steered, or only the front wheels are provided with a steering.

In a further embodiment of the invention, a hydrostatic drive is used All-wheel drive provided. With such a drive drive is preferably everyone A hydraulic motor is assigned to the wheel via a hydraulic pump unit can be fed from one or two hydraulic pumps. This in turn will powered by a diesel engine.

In a further embodiment of the invention, an electric all-wheel drive is used as the travel drive intended. This is an extremely environmentally friendly variant.

In a further embodiment of the invention, a hybrid all-wheel drive is used as the travel drive provided in the form of a diesel-electric drive. Here he can Diesel engine as a generator for the electric drives assigned to each wheel are serve.

In a further embodiment of the invention is an internal combustion engine of the travel drive arranged in the front portion of the vehicle frame, and from which Internal combustion engine is derived from a front-mounted PTO drive. An attachment device is preferably also in the front area of the vehicle intended for attachments operated by the PTO can be. Various devices can be provided as attachments be, as is already exemplary for the front area of the vehicle EP 0 387 794 B1 are proposed. Depending on the application, however other, appropriately adapted attachments may also be provided.

In a further embodiment of the invention, the rear area with a smoothing device is provided, it is provided that the smoothing device between a operating position lowered to the ground and a rest position is pivotally mounted. This configuration is particularly advantageous if the vehicle is used for beach cleaning, because of the underground after the smoothing device passes over the cleaning unit a uniform surface can be given.

In a further embodiment of the invention, the smoothing device is designed to be rotatable Roller designed with a defined pattern in the subsurface pressing jacket profiling is provided. Such a pattern can be used for Promotional purposes may be provided. It can also have a uniformly profiled surface be created for the underground that is aesthetically pleasing is.

In a further embodiment of the invention, in which a collecting container for collected A floor area of the collecting container is well provided between a closed functional position and the inside of the container releasing emptying position movably mounted. This can do that Collection container can be emptied without having to tip it. The collection container is preferably designed with the help of support arms or another Bracket articulated to the chassis or releasable in some other way or inextricably linked to it.

In a further embodiment of the invention, in which the collecting container is pivotally or tiltably mounted on the rear section, the Rear section a subframe that can be moved in a horizontal orientation on which the collecting container is hinged, and in particular with is provided with a platform. Due to the relocation, preferably in Vehicle longitudinal direction and in the vehicle vertical direction, it is possible that Empty the collection container. If the subframe has a platform is, the spatial shift in a horizontal orientation is advantageous the use of this platform as a loading area, since the platform can also be Relocation in space, i.e. when moving up, down, down front or back, remains horizontally aligned.

In a further embodiment of the invention, at least one drive means for Relocation of the subframe is provided. As a driving means is in particular at least one hydraulic actuator in the form of at least one Hydraulic cylinder provided.

In a further embodiment of the invention are parallel joint means for moving space of the subframe provided with one on the collection container articulated positive guidance means are operatively connected such that if the subframe is moved up and back - open a normal direction of travel - inevitably the collection container in its emptying position and when the subframe is relocated the lowered position transfers the collecting container into its collecting position becomes. An additional drive or actuator for tilting or swiveling of the collection container is eliminated by this configuration, since the Forced guidance means themselves the corresponding tilting or swiveling movement derived from the movement of the subframe. The parallel joint means provide a particularly simple and reliable design Relocation of the subframe in a horizontal orientation.

In a further embodiment of the invention with a cleaning device for loose Substrate, which is arranged on a support frame which between at least one receiving position lowered to the ground and one pivoted up rest position is pivotally mounted, the Cleaning device a screening device with a rotating screen belt has, it is provided that an upper run of the screen belt over eccentric Bearing shaking rollers is guided, which are aligned with each other out of phase are. As a result, the upper run forms a vibrating surface that separates the sand from others Separates well, such as stones or waste in particular. Are preferably for the shaking rollers are provided drive means that have a defined and over the Ensure constant phase shifting during operation.

In a further embodiment of the invention with a cleaning device for loose Substrate, which is arranged on a support frame which between at least one receiving position lowered to the ground and one pivoted up rest position is pivotally mounted, the Cleaning device a screening device with a rotating screen belt has, it is provided that the sieve belt at least one shaking shaft is assigned, on which at least one shaking element is arranged coaxially, that is connected to the screen belt, and that - seen in cross-section - Is provided with a greater length than width. Preferably the shaking element is connected to the shaking shaft as non-rotatably Disc designed, which is preferably elliptical or polygonal. If several shaking shafts arranged one behind the other are provided, so the shaking elements are preferably aligned out of phase with one another his. The shaking elements are coaxially threaded on the respective shaking shaft, lined up or otherwise applied. Hence for each shaking element is mirror-symmetrical to its center of gravity long, radially protruding areas and two shorter, preferably at right angles radially projecting areas. This ensures that every shaking element with a full revolution, the adjacent sieve belt lifts twice, i.e. there is a double stroke function. This ensures good sieving performance achieved.

In a further embodiment of the invention is an outer circumference of the shaking element Provided all around with a toothing contour. If advantageous, that Sieve belt is designed as a chain link belt, so they can rotate on the Shaking shafts fastened shaking elements directly as drive elements for the Screen belt serve without separate drive means, especially V-belts are needed. Since the shaking elements with their focus coaxial to Shake shaft are aligned, a mass balance is guaranteed that the Avoids transmission of vibrations to the support frame.

In a further embodiment of the invention, the upper run of the screen belt is one assigned independently driven additional funding that is coordinated in operation runs on the belt speed of the sieve belt with the upper run. This means that when the sieve belt rises diagonally in the cleaning operation Avoiding larger objects or larger goods against the direction of travel of the sieve belt falls back down. The cleaning effect will this increases considerably, since only a correspondingly large object is transported upwards once on the sieve belt without falling back and having to be transported up again. The upper end area The sieve belt is assigned to the collection container in which the waste and other items are collected and disposed of in due course. In particular, an ascending conveyor can be provided as additional funding be equipped with brushes or flexible plates. The relative speed of the ascending conveyor is less than or equal to the sieve belt speed. The ascending conveyor forms a form-fitting support from the incline rising upper run of the screened material.

In a further embodiment of the invention, a front end of the support frame, which is provided with a receiving area, one with receiving elements provided feed roller assigned by means of a on the support frame Articulated pivot arm assembly is pivotally mounted is that on the one hand in the vehicle longitudinal direction in front of or behind the recording area and on the other hand, about vertically displaceable relative to the receiving area is. The pivot bearing of the feed roller is designed such that for the different movement options of the feed roller two Panning movements are superimposed on one another. By the first swivel movement is the movement of the feed roller in front of or behind the pick-up area achievable. Due to the superposition of the second swivel movement, the about vertical height shift relative to the recording area can be achieved. The The swivel arm arrangement and the feed roller are preferably displaced through hydraulic actuators.

In a further embodiment of the invention, the rear section is at least one assigned to horizontal loading area, which can be removed at least in sections Floor. This allows the rear section an additional Take over transport function. The removable bottom increases the Variability of the rear section.

In a further embodiment of the invention, the loading area is laterally through at least a support rail secured between a securing position and a loading position is movably mounted. The support rail is preferably between the securing position and the loading position can be pivoted, in order to easily load or unload the loading area in the loading position to ensure. The support rail at the rear section is in the securing position firmly anchored.

In a further embodiment of the invention, the cleaning device is on opposite sides Associated with side shields that move on the Rear section are stored.

Fig. 1

eine Seitenansicht einer Ausführungsform eines erfindungsgemäßen Strandreinigungsfahrzeugs,

Fig. 2

in vergrößerter Darstellung einen Ausschnitt der Reinigungsvorrichtung des Strandreinigungsfahrzeugs nach Fig. 1, und

Fig. 3

schematisch eine Draufsicht auf das Strandreinigungsfahrzeug nach Fig. 1,

Fig. 4

schematisch eine Draufsicht auf ein weiteres Strandreinigungsfahrzeug ähnlich Fig. 3,

Fig. 5

eine weitere Ausführungsform eines erfindungsgemäßen Strandreinigungsfahrzeuges in einer Seitenansicht,

Fig. 6

das Strandreinigungsfahrzeug nach Fig. 5 in einer Frontansicht,

Fig. 7

in vergrößerter Darstellung eine Schüttelwelle der Siebeinrichtung des Strandreinigungsfahrzeugs nach den Fig. 5 und 6,

Fig. 8

in weiter vergrößerter Darstellung eine auf der Schüttelwelle nach Fig. 7 drehfest angeordnete Schüttelscheibe und

Fig. 9

das Strandreinigungsfahrzeug nach den Fig. 5 und 6 in einer Draufsicht.

Further advantages and features of the invention result from the claims, the disclosure of which is hereby expressly referred to, and from the following description of preferred exemplary embodiments of the invention, which are illustrated with the aid of the drawings.

Fig. 1

2 shows a side view of an embodiment of a beach cleaning vehicle according to the invention,

Fig. 2

in an enlarged view a section of the cleaning device of the beach cleaning vehicle according to FIG. 1, and

Fig. 3

schematically a top view of the beach cleaning vehicle according to FIG. 1,

Fig. 4

schematically a top view of another beach cleaning vehicle similar to FIG. 3,

Fig. 5

another embodiment of a beach cleaning vehicle according to the invention in a side view,

Fig. 6

5 in a front view,

Fig. 7

an enlarged view of a shaking shaft of the screen device of the beach cleaning vehicle according to FIGS. 5 and 6,

Fig. 8

in a further enlarged representation, a shaking disk arranged on the shaking shaft according to FIG. 7, and

Fig. 9

the beach cleaning vehicle according to FIGS. 5 and 6 in a plan view.

A motor vehicle according to FIGS. 1 to 3, which is used for beach cleaning has a two-part vehicle frame, which is separated by a front section 1 and a rear section 2 is formed. The front section 1 and the Rear section 2 are connected to each other by an articulated bearing 3 forms an articulated steering with a vertical steering axis K. The articulated bearing 3 is designed such that the front section 1 and the rear section 2 of the vehicle frame horizontally pivotable relative to one another about the articulation axis K. are. The articulated bearing 3 can be designed such that other degrees of freedom are not possible. Then a stable takes place through the articulated bearing 3 Support with regard to buckling movements with a horizontal articulation axis or with regard to torsional movements between the front section and the rear section. The pivot bearing 3 can, however, with damping or suspension elements be provided with a view to certain compensatory movements on torsional loads or vertical movements to allow the bearing elements, especially on uneven ground, not to overload. It it is also possible to design the articulated bearing 3 as a ball joint. Thereby, that with such a ball joint movements in different degrees of freedom are possible, all four wheels remain even when the motor vehicle is traveling over differently sloping ground on the floor, without that there are heavy loads on the articulated bearing. The essential idea the articulated bearing 3 is the mobility and maneuverability of the motor vehicle to increase, so that, depending on the application, also universal or ball joint couplings for connection between the front section 1 and the rear section 2 can be provided. It is the requirement according to the invention however, in any case that the articulated bearing has a vertical steering axis. However, it is possible and in many cases advantageous to store the kink, i.e. the Coupling between the front section 1 and the rear section 2 so too shape that the vertical steering axis by additional, inclined Swivel axes is supplemented by a common with the vertical steering axis Center point, i.e. themselves in a common focus to cut.

The front section 1 has a front frame part, not designated in any more detail and the rear section 2 is provided with a rear frame part, which also is not specified. A front wheel axle 4 is arranged on the front frame part, the two front wheels 4a in the following described in more detail Ways can be driven individually. The rear frame part carries accordingly two rear wheels 5a of a rear wheel axle mounted by means of steering knuckle bearings 5. The rear frame section is on its top with a loading bridge provided, which is not specified. The dock leveler can be different Take on functions, such as transporting auxiliary equipment, Beach items or the like. The flat surface of the dock leveler serves as a storage or transport area for a variety of uses, such as they are similarly known in snow slope vehicles.

A cleaning device 6 is assigned to the rear section, which fixes one Carrier frame 16 connected to the rear frame part. The support frame 16 extends approximately over the vehicle width and relative to the rear frame part arranged inclined. The support frame 16 extends from seen from the front from below diagonally upwards over the rear wheel axle 5 away. The carrier frame is approximately at the same height as the rear wheel axle 5 16 firmly connected to the rear frame part above the rear wheels 5a. The support frame 16 stores deflection rollers for an unspecified Screen belt 19, 20, the upper run 19 of the screen and conveying surface for the cleansing sand. The rotating sieve belt 19, 20 is with the help of a Chain drive driven. The upper run 19 are unspecified Assigned shaking rollers, which are mounted eccentrically and driven by toothed belts are. The eccentric bearing in the running direction of the sieve belt 19 spaced-apart shaking rollers are out of phase with one another, whereby the shaking effect for the sieve belt 19 is improved. The support frame 16 and the upper and lower run of the screen belt 19, 20 are spaced apart above the rear wheels 5a so that they can be steered.

Behind the rear wheel axle is a collection container for the through the sieve belt Collected good provided that behind the rear pulley Screen belt 19 is arranged that the collected material directly from the screen belt 19 is conveyed from into the collecting container 11. The collection container 11 is by means of a swivel arm arrangement 14 between its collecting position and an emptying position shown in dash-dotted lines in FIG. 1. 1, it can be seen that the Bottom and a side wall of the container can be opened, so that the collecting container 11 opens downwards. This is a tipping and Emptying the collecting container 11 is unnecessary.

To support the conveying movement of the upper run 19 of the screen belt Good is also an ascending conveyor for the upper run 19 22 assigned to the one rotating, equipped with brushes or flexible plates Has conveyor belt. The conveyor belt is parallel to the upper run 19 of the Sieve belt guided, as can be seen from the Fig. 1. The ascending conveyor 22 is arranged on the rear frame section or on the support frame 16. By the Ascending conveyor 22 is prevented from being conveyed on the upper run 19 when shaking the upper run 19 again along the inclined plane of the upper run 19 falls back down. The conveyor speed of the ascending conveyor 22 is less than or equal to the belt speed.

A front part 18 of the support frame 16 is about a horizontal and transverse to the vehicle extending pivot axis 17 relative to the support frame 16 pivotally mounted, as in the dash-dotted representation in Fig. 1 can be seen. For the stepless displacement of the front part 18 is a hydraulic actuator is provided. The part 18 has a front Recording area on the in the illustrated embodiment by a Receiving share 21 or a cutter bar is formed. In operation of the cleaning device 6 this receiving group 21 projects into the underground, i.e. the Sand into it, so that the forward movement of the motor vehicle Sand and goods to be collected on the receiving share 21 and thus also on pushes the upper run 19 of the screen belt. As can be seen from FIGS. 1 and 2 is, the receiving share 21 is immediately in front of the front pulley the sieve belt 19, 20 arranged.

The intake and delivery of the sand-dirt mixture to the upper run 19 of the screen belt is supported by one arranged in front of the receiving coulter 21 Feed roller 23, which is equipped with spring tines or brushes. The Feed roller 23 is held on a cantilever frame 24 which is rigid with the front part 18 of the support frame 16 is connected. The jib frame 24 a swivel arm arrangement 25 is assigned, by means of which the feed roller 23 according to the arrows and the dash-dotted representation in Fig. 2 on the one hand or behind the coulter share 21 is pivotable and the other by means a superimposed swiveling movement vertically displaceable is. By means of a preferably hydraulic actuating device, not shown the feed roller 23 is continuously pivotable.

At least one shaking roller is also assigned to the lower run 20, so that the sand that has fallen through the sieve of the upper run 19, the sand in the lower run 20 is caught, also from the lower run back to the underground arrives.

An attachment device 9 is provided on the front by a front linkage is formed, the lifting or according to the dashed double arrow Allows lowering movements of a corresponding attachment.

The front frame part also carries a driver's cab 7, below which a diesel engine 8 is arranged. The PTO shaft output is from the diesel engine 8 10 derived to drive appropriate functions of attachments when necessary. Each wheel 4a, 5a is in the illustrated embodiment Assigned hydraulic motor, so that there is a hydrostatic all-wheel drive. The hydraulic motors are controlled by a hydraulic control, the one or has several hydraulic pumps, which in turn by the diesel engine 8 are driven.

As can be seen from FIG. 3, the motor vehicle is shown Embodiment provided with a rear wheel steering. The steering angle α of the Rear wheel steering is at an articulation angle β between the front frame part 1 and Tail frame part 2 tuned to achieve clean steering and driving movements to be able to. In an embodiment not shown are additional still provide the front wheels with steering, so that overall results in four-wheel steering. This means that steering and driving movements according to Art of a crab can be achieved.

A smoothing device 12 is provided on the rear of the motor vehicle is formed by a smoothing plate pressed onto the surface during operation, the pivot axis that runs horizontally and in the transverse direction of the vehicle 13 can be swiveled up into a dash-dotted position according to FIG. 1. The Swiveling up takes place automatically when the motor vehicle reverses. The smoothing plate is adjusted by hydraulic control elements. Achieving sufficient contact pressure on the surface can by additional spring elements.

1 to 3, the vehicle is shown as a self-driving vehicle, which is provided with its own travel drive. The cleaning device (6) can also be carried on a towed vehicle, such as a trailer, be arranged. This vehicle could then be operated by an independent Tractor be pulled. This vehicle would then be towed Represent cleaning device, as in a similar manner from the EP 0 486 053 1 is known.

4 corresponds to that previously shown in FIG. 1 to 3 described beach cleaning vehicle, so that the previously done Description can be referenced. The only difference is that the 4 a smoothing device 12a is provided, which also - like the smoothing device 12 according to FIG. 1 - by a horizontal one Swivel axis can be swiveled upwards or lowered downwards. A corresponding pneumatic or hydraulic cylinder can support this be provided. In addition, however, the smoothing device 12 is one vertical pivot axis S, which is at least approximately the rear wheel axis of the rear wheel axle steering cuts, horizontally pivoted. This makes it possible to adjust the smoothing device 12a according to the steering angle to track the rear wheels 5a. For this purpose, the smoothing device 12a is by means of a coupling device T to the steering knuckle of the rear wheels 5a tied in such a way that together with a steering lock of the rear wheels 5a a corresponding pivoting of the smoothing device 12a relative to the Central longitudinal axis of the vehicle takes place about the swivel angle γ. This corresponds to the swivel angle γ approximately the angle of the different steering angles of the each outer and inner rear wheel 5a. For the inner rear wheel the steering angle in Fig. 4 with α. The coupling device T can only through mechanical lever linkage or through combined mechanical / hydraulic Linkage or exclusively hydraulic coupling elements respectively. With exclusively hydraulic coupling elements these take on both the tracking and the supporting function of the Smoothing device 12a. With combined mechanical / hydraulic coupling device are corresponding hydraulic elements, such as hydraulic cylinders or similar, for the controlled horizontal pivoting of the smoothing device 12a provided while the management and support functions of mechanical Support elements are taken over.

The smoothing device 12a attached in the rear area of the vehicle is equipped with the Steering kinematics of the rear wheel axle, i.e. the axle steering of the rear wheels 5a, coupled. During steering movements of the rear wheels 5a, the smoothing device matched to the steering angle of the rear wheels 5a. As a result, the smoothing device has an almost constant effective working width probably achievable when driving straight ahead and when cornering. The controlled one Forced guidance of the smoothing device 12a can be done mechanically if required or switch off hydraulically. Then the smoothing device 12a runs The vehicle only has to control itself, since the smoothing device then turns the swivel axis S is freely pivoted.

A beach cleaning vehicle according to FIGS. 5 to 9 corresponds with respect to all Features not described below in more detail than those previously described Embodiments. For a more detailed explanation of the beach cleaning vehicle 5 to 9 is therefore in addition to the previous description directed. In the following, only the features and functions of the Beach cleaning vehicle according to FIGS. 5 to 9 described in detail, the differ from the features and functions of the previously described exemplary embodiments differ. For the purpose of explanation, some are functionally equivalent Units or parts of the beach cleaning vehicle according to FIGS. 5 to 9 with the same reference numerals as the previously described embodiments, but with the addition of the letter "a".

The beach cleaning vehicle is in its rear section 2a with a Provided screening device 6a cleaning device whose basic structure of the cleaning device previously described with reference to FIGS. 1 and 2 equivalent. The main difference is that here Upper run of the sieve belt by several parallel to each other Shaking shafts 38 (FIG. 7) is supported, each shaking shaft 38 having a plurality of shaking disks aligned at equal intervals 39 is provided. The shaking disks 39 are coaxial with their center of gravity threaded onto a support tube 41 of the shaking shaft 38, using as a spacer 39 spacer sleeves 40 are provided between the individual shaking discs are. Each shaking disc is by means of a square hollow cross section 42 on an outer circumference of the correspondingly square Carrier tube 41 pushed on in a rotationally locking manner. Each shaking disk 39 is in the designed essentially elliptical, as can be seen from FIG. 8. In the in the orientation shown in the drawing, the shaking plate 39 is horizontal wider than the vertical extension of the shaking plate 39. Additionally is the outer circumference of the shaking disk 39 with a toothing contour 43 Mistake. The sieve belt is formed by sieve belt parts that work together connected chain links are designed so that the sieve belt parts a rotating Form chain link belt. Such a chain link belt is fundamental known. The individual tooth areas engage through the toothing contour 43 from below on the chain-shaped sieve belt and practice in Direction of rotation a conveying movement by positive and non-positive connection on the sieve belt out. This avoids an additional drive for the sieve belt.

In a manner not shown, it is provided that adjacent shaking shafts are provided Toothed belt drives acting laterally on the outside by defined phase shifts to move to each other. This is a further increase in sieving capacity achievable.

On the rear section 2a is an auxiliary frame 32 by means of a parallel joint unit 35, 36 displaceable in horizontal alignment in space between a dashed shown emptying position and one in solid lines shown collecting position according to FIG. 5. As a parallel joint means for parallel displacement of the subframe 32 are two parallel levers on each side 35, 36 provided on the one hand on the subframe 32 and on the other are hinged to a main frame of the rear section 2a. On an upper one Parallel lever 36 is also a positive guidance means in the form of a transmission linkage 37 articulated, that at its opposite forehead is articulated on the collecting container 11a. Around the subframe 32 Transferring its collection position to the emptying position is a couple of synchronously operating hydraulic actuating cylinders 33 provided as Drive means for moving the subframe 32 are designed. The Adjusting cylinders 33 engage a cross member 34 of the subframe 32.

The subframe 32 is provided with a horizontal platform which in the Drawings is not specified. This can be used as an additional loading area serve. Because this additional loading area when relocating the subframe 32 remains horizontally aligned, even with a relocation slipping down according to transported objects is excluded.

As can be seen from FIG. 5, the positive guidance means is in the form of Transmission linkage 37 on the parallel lever 36 on the one hand and the Collection container 11a, on the other hand, articulated that in the event of a height shift of the subframe 32 upward and rearward the collecting container 11a is inevitably transferred to the tilted emptying position. With another Lowering the subframe 32 moves the transmission linkage 37 the collection container 11a inevitably again in the with solid lines shown collective position back.

As can be seen from FIG. 9, the top of the rear section is included a horizontal loading area, which is laterally supported by a support rail 31 is secured. The support rail 31 on each side is about a vertical axis pivotally mounted on the rear portion 2a to allow for loading or unloading to enable improved access to the loading area.

As can also be seen from FIGS. 5 and 6, the cleaning device 6a for security reasons on opposite sides by one Protective cover 30 closed, the protective covers 30 in particular for Maintenance or repair work on horizontal swivel axes on the Rear section 2a are pivotally articulated so that they can be moved into their position in FIG. 6 shown opening position can be folded up or into the protective position according to Fig. 5 can be folded down.

Claims (26)

Vehicle, in particular for cleaning the beach, with a vehicle frame on which a front wheel axle and a rear wheel axle are arranged,
characterized in that
the vehicle frame is divided into a front section (1, 1a) and a rear section (2, 2a), which are connected to one another by an articulated bearing (3, 3a) with a vertical steering axis (K). Vehicle according to claim 1, characterized in that a steering is assigned to the rear wheels (5a) of the rear wheel axle (5). Vehicle according to claim 1, characterized in that the front wheels (4a) of the front wheel axle (4) are provided with a steering. Vehicle according to claim 1 with a travel drive, characterized in that a hydrostatic all-wheel drive is provided as the travel drive. Vehicle according to claim 1 with a travel drive, characterized in that an electric all-wheel drive is provided as the travel drive. Vehicle according to claim 1 with a travel drive, characterized in that a hybrid all-wheel drive in the form of a diesel-electric drive is provided as the travel drive. Vehicle claim 1, characterized in that at least one additional drive (10) is provided in the front section (1, 1a) for at least one additional device which can be attached to the vehicle and is derived from a main drive. Vehicle according to claim 7 with a travel drive, characterized in that an internal combustion engine (8) of the travel drive is arranged in the front section (1, 1a) of the vehicle frame as the main drive, and that a front-mounted PTO drive is derived from the internal combustion engine (8) as an additional drive , Vehicle according to claim 7, characterized in that a hydraulic drive is provided as an additional drive, which is derived from a main hydraulic drive. Vehicle according to claim 1 with a smoothing device in a rear area, characterized in that the smoothing device (12) is pivotally mounted between an operating position lowered to the ground and a rest position. Vehicle according to 10, characterized in that the smoothing device is pivotally mounted about a vertical steering axis and is coupled to the rear wheel steering in such a way that the smoothing device is automatically, in particular mechanically or hydraulically, tracked when the rear wheel steering is moved. Vehicle according to claim 10, characterized in that the smoothing device is controlled in such a manner as a function of a driving direction control of the main drive in such a way that the smoothing device is pivoted up when the vehicle moves backward. Vehicle according to claim 10, characterized in that the smoothing device is designed as a rotatable roller which is provided with a jacket profile pressing a defined pattern into the ground. Vehicle according to claim 1 with a collecting container for collected goods, characterized in that the collecting container (11a) is pivotally or tiltably mounted on the rear section. Vehicle according to claim 1 with a collecting container for received goods, characterized in that a bottom region of the collecting container (11) is movably mounted between a closed functional position and an emptying position which releases the interior of the container. Vehicle according to claim 14, characterized in that the rear section (2a) has a subframe (32) which can be moved in a horizontal orientation, to which the collecting container (11a) is articulated and which is in particular provided with a platform. Vehicle according to claim 16, characterized in that at least one drive means (33) is provided for moving the auxiliary frame (32). Vehicle according to claim 16, characterized in that parallel joint means (35, 36) are provided for moving the auxiliary frame (32), which are operatively connected to a positive guide means (37) articulated on the collecting container (11) in such a way that when the auxiliary frame is moved (32) upwards and backwards - in relation to the normal direction of travel - the collecting container (11a) is inevitably transferred to its emptying position and when the auxiliary frame (32) is moved to the lowered position, the collecting container (11a) is transferred to a collecting position. Vehicle according to Claim 1 with a cleaning device for loose subsurface, in particular sand, which is arranged on a support frame which has a receiving area which is pivotably mounted between at least one receiving position lowered to the subsurface and a pivoted-up resting position, the cleaning device having a screening device with a rotating screen belt, characterized in that an upper run (19) of the sieve belt (19, 20) is guided over eccentrically mounted shaking rollers which are aligned with each other out of phase. Vehicle according to Claim 1 with a cleaning device for loose subsurface, in particular sand, which is arranged on a support frame which has a receiving area which is pivotably mounted between at least one receiving position lowered to the subsurface and a pivoted-up resting position, the cleaning device having a screening device with a rotating screen belt, characterized in that at least one shaking shaft (38) is assigned to the sieve belt, on which at least one shaking element (39) is arranged coaxially, which is connected to the sieve belt, and which - seen in cross section - is provided with a greater length than its width is. Vehicle according to claim 20, characterized in that an outer circumference of the shaking element (39) is provided all around with a toothing contour (43). Vehicle according to claim 19, characterized in that an independently driven additional conveying means (22) is assigned to the upper run (19) of the sieve belt, which runs in operation in coordination with the belt speed of the sieve belt with the upper run (19). Vehicle according to claim 19, characterized in that the receiving area (21) is assigned a feed roller (23) provided with receiving elements, which by means of a swivel arm arrangement (25) articulated on the support frame (16, 18) with the aid of adjusting means with superimposed swiveling movements into different Directions is shiftable. Vehicle according to claim 1, characterized in that the rear section (2a) is assigned at least one horizontal loading surface which has a bottom which can be removed at least in sections. Vehicle according to claim 24, characterized in that the loading area is secured laterally by at least one support rail (31) which is movably mounted between a securing position and a loading position. Vehicle according to claim 19, characterized in that the cleaning device (6a) on opposite sides is assigned protective screens (30) which are movably mounted on the rear section (2a).

Images