VERTEILER-BZW. ZUSTELLERWAGEN

The invention refers to Verteiler-bzw. Zustellerwagen, consisting of from framework cross-beams and crossbeams formed and with an attached grasp handle an equipped car chassis, which is equippable over a rear, rollers carrying carrying axle and two from each other independent and around one vertical axle each tiltable front swivel rollers hung up at the car chassis against the ground supported and with an in particular box-like structure for the admission set or of the distribution property which can be transported.

In order the feed and/or distribution of larger quantities to a multiplicity of receivers and/or of distributing materials or reports and such with lowest possible physical Belastuung the setting or Verteilernerson, which can be set, will manage frequently used cars with a box shaped admission for set or the distribution property, in order to transport that set or the distributor property up to handing out to the receiver. In the context of the distribution or feed frequently also larger quantities of block letters or packages and such which can be set are to be transported or in addition, newspapers or magazines, from which a substantial weight of the material altogether which can be transported results, which entails naturally an appropriate energy expenditure of the distributor or Zustellers when pushing or, with sloping lane also when stopping Zusteller or the distributor car. On the basis of the fact the fact that the employment one results Zusteller or distributor car also its as full an extent of utilization as possible vorraussetzt in many cases from its employment within a relatively large set or distribution range within whose also on the presence of pavements and the such sharp edged joggles between different lane levels is to be counted, whereby the problem of an overcoming of such obstacles executable with a reasonable force employment results.

From there the task is appropriate for the invention at the basis a setting and/or a distributor car to create, that with good suitability for the admission also the quantity of Zustell-bzw, resulting within a larger set or distribution range. Distribution property at a lowest possible economic and technical expenditure producible and in the enterprise low-friction verfahr-und manövierbar as well as above all also for overcoming lane transfers, for example curbs; is suitable and in addition at long life span lowest possible maintenance costs as well as with large radius of action a lowest possible consumption at energy ensures.

This task becomes with Verteiler-bzw. Setting car of the design initially specified essentially according to invention by the fact solved that at least one of the roles (support or swivel roller) is assigned to the electric motor an infinitely variable power supply by means of an electric motor direction of rotation-reversible starting under load and propelable and, whereby at least at the grasp handle attacking thrust or the course, if necessary also guidance strength seizing sensor is assigned to the regulation of the power supply. A kind of these equipped Zustell-bzw. Distributor car relieves the distributor first at least on even lane of the energy expenditure, whereby the power supply of the driving motor regulated as a function of the course and/or thrust attacking at the grasp handle ensures not only an adjustment of the drive power to the driving speed intended by the Zusteller and/or distributor, necessary for moving the car, but also an economical energy consumption. From dependence it follows the regulation of the drive power of course or the thrust attacking at the grasp handle also that also driving on upward gradient distances with a lowest possible energy consumption can take place. In particular the equipment according to invention Zustell-bzw makes possible. Distributor car the energy expenditure which can be applied by the setting he and/or distributor for inducing the car independently of the range of the loading, i.e. the momentary total weight to in-regulate the car and independently of upward gradient or downgrades on a constant measure whereby a certain reasonable energy expenditure can be quite meaningful, in order to mediate to the Zusteller and/or distributor a feeling for the movement and their regulation.

For the implementation different organization forms present themselves to the invention, whereby a preferential arrangement is seen in the fact that at least or however if necessary also all driving motors, in particular electric motors are designed as wheel hub engines. The training of the electric motors as wheel hub engines opens an organization freedom in such a way that any role of the car a motor drive can be assigned, whereby the power supply can be made for example one a swivel roller of assigned electric motor by sliprings in the swivel roller suspension and the power supply for example one a roller of assigned and engine designed as brushless electric motor via the roller axle designed as hollow axle. Preferably it will however be planned that is assigned to one of the rear rollers at least as wheel hub engine trained electric motor, whereby in the interest of a safe, even drive also with slippery lane condition both of the rear rollers are equipped with a wheel hub engine appropriately. The two rear rollers are favourably arranged at a rear axle of the car formed by a rigid oh pipe, whereby one of the loading of the car, and/or a distribution of load of the load independently safe load of the driving pulleys can be achieved by the fact that also the battery box is arranged in the rear range of the car.

In a modified implementation form it can be also intended however that the two rear rollers more together, by means of a differential and drive shafts a driving motor connected with each of the rollers is zugeornet.

Independently of the allocation or the driving motors to or several of the front and/or rear roles of the car a manually operatable main switch is intended regarding the power supply of the driving motors, by means of whose the power supply can be manufactured or interrupted or the driving motors arbitrarily, so that the Zusteller and/or distributor is able to drive the cars alternatively with or without motor auxiliary drive. In a special arrangement form thereby naturally also intended that additionally to the main switch also a manually adjustable switch for a stepless regulation of the power supply is or the driving motors present, the Zusteller or distributor an arbitrary regulation of the drive power can be permitted. The main switch and the rule switch are if necessary appropriately arranged at the grasp handle.

Preferring way is however obligatory and as a function of course or the thrust attacking at the grasp handle regularly by the driving motors which can be applied the drive power, to which in a simple and appropriate arrangement that at the Griffbiügel the attacking and/or expenditure-practiced, in car longitudinal direction working course or thrust is intended more seizing and with a distance to the grasp handle arranged sensor a control signal for the current supply for that or supplies the electric motors controlling and/or steplessly steering switches, in such a manner that the switch the current supply as a function of the size course or of the thrust attacking in car longitudinal direction at the grasp handle zuregelt more or less strongly excitement ELT or. With a such organization of the regulation of the power supply or the driving motors it is ensured that the Zusteller and/or distributor by an appropriate course or thrust increase or reduction the driving speed at will to in-regulate can. In detail course or the thrust can be arranged seizing and sensor converting into a control signal arbitrarily, e.g. as dynamometer or way measuring instrument, trained and according to its organization in a suitable place between grasp handles and car chassis. Furthermore that will appropriately be formed the regulation of the power supply or the driving motors procuring switches by a smallbuilding electronic circuit, what opens the possibility of a single control of the driving motors at the same time with the presence of several driving motors, e.g. in the sense of an anti-slip regulation or in an extended organization also as guidance force support, approximately in the sense of a guidance brake mechanism. For the achievement of an anti-slip regulation it can be for example intended that the power supply of the individual driving motors is regulated additionally as a function of a number of revolutions difference between the two roles of an axle. A so trained control avoids above all from a number of revolutions difference between the two roles of an axle, due to different grip traction of the lane, restultierendes moment around the car vertical axis and thus a lagging of the front swivel rollers leading to an inadvertent steering movement. For the achievement of a guidance force support it can be for example also still intended that the two electric motors of two roles of an axle are differently controllable, in such a manner that they run either with different numbers of revolutions including the number of revolutions zero or however against-intimately. Thus one moment can be produced around the car vertical axis, which leads to an intended lagging of the front swivel rollers and thus to an intended change of direction of the driving car.

The training the regulation of the power supply or the driving motors of the procuring switch as electronic circuit opens at the same time also still the possibility of switching that or the driving motors for achievement or increase of a continuous braking action and if necessary an associated energy recovery to generator operation if a for this intended sensor expenditure-practiced at the grasp handle course or thrust exceeding independent movement tendency of the car determined.

The training the regulation of the power supply or the driving motors of the procuring switch as electronic circuit open at the same time also still the possibility of in-regulating or the driving motors the sensor recognizing for achievement of a guidance braking action as a function of a guidance strength expenditure-practiced at the grasp handle on different numbers of revolutions including the number of revolutions zero as well as if necessary on against-intimate direction of travel too scolded. The guidance strength recognizing sensor expenditure-practiced at the grasp handle is trained the organization of the grasp handle and its connection with the car chassis accordingly and arranged, in such a manner that it can recognize for example a rotating motion of the grasp handle in relation to its connection to the car chassis to direction and size and derive from it a control signal. This is possible also with recognizing a twisting in the connection between grasp handles and vehicle chassis after size and direction. In a preferential expenditure valley doing form in connection with an arrangement of the grasp handle after kind of a Fahrradlenkers and a connection of the grasp handle with the car chassis, formed by only one cross-beam, the twisting of the cross-beam is used after direction and size of recognizing sensor. In addition, beside this preferential arrangement form it can be intended that the grasp handle is designed as rising arranged u-shaped handle, whereby then two linear are intended e.g. as dynamometer or stretch measuring instrument, trained and in a suitable place between grasp handles and car chassis arranged force photographs in each case.

Furthermore to the basic equipment set or of a distributor car according to invention it belongs that at least the rear rollers with additional, when drum brakes trained brakes are equipped an actuation equipment at the grasp handle is assigned to those and their actuating force transmission takes place by means of bowden cable and hand lever. The mechanical brakes can be used both and parking brake and service brake.

Furthermore in further arrangement set or of the distributor car according to invention it is intended that the chassis is equipped additionally with a mechanism for overcoming gradate-like lane transfers, in particular pavements.

In accordance with a first arrangement form thereby the mechanism exists pavements, from the front swivel rollers opposite forward-moving and to the driving level under an angle of at least 20 DEG employee ramp as well as in the range between Lenk-und rollers of the car arranged auxiliary roles, formed by the rebellion level Lenk-und rollers, for overcoming gradate-like lane transfers, in particular whereby the ramp is arranged within the clearance one the face of the car opposite unloading and essentially at height of the car chassis of arranged impact handle. When particularly favourably regarded with the fact that the ramp by a lug belt led across two guide rollers from each other arranged in a distance and the two guide rollers basic, against which chassis of the car supported framework is formed in the two guide rollers are stored which in one under an angle of at least 20 DEG in relation to driving level of the car employee level and run its lower edge parallel to the level, in which the two guide rollers are stored. The lug belt is supported thereby in the range between the two guide rollers by means of along the lower edge of the Ramnenrahmens of stored supporting rollers carrying the guide rollers against this. The ramp framework is behind-ends at least over a support fastened to the chassis of the car, whereby it can be planned that the ramp frameworks with the car chassis connecting the support under inserting a shock absorbing mechanism is connected to a rubber pad mechanism with the car chassis, in particular. In an extended arrangement form of the invention it can be still intended thereby furthermore that the Elektromotores assigned in connection with it assigned the ramp framework the ramp screen end lug belt by means of one is propelable one of its guide rollers. Since however a constant drive of the lug belt is too energy complex not necessarily and in addition, it is appropriately further intended with the fact that the guide roller assigned electric motor in the lug belts or its support more switching on pressure or a pull-switch is assigned to switching on of the current supply on for that.

Around in the case of a rear-end collision into a gradate-like lane transfer, in particular a curb to avoid violent impacts, which expenditure-practiced to a reaction at the grasp handle and thus to a falsification from the sensors to seizing sizes regarding at the grasp handle and actually intended course, thrust or guidance strength lead could, after possibility is apart from an inserting of a shock absorbing mechanism in the connection of the ramp framework with the car chassis furthermore also equipment of the auxiliary roles with a shock absorbing tyre seen.

In detail the auxiliary roles arranged within the range between Lenk-und the rollers of the car are among themselves by means of a rigid axle connected and by means of these at the chassis of the car hung up, whereby the diameter of the auxiliary roles is at the most smaller equal in size and preferably however than the diameter of the rollers and whereby the axle of the auxiliary roles has to the swivel rollers a larger distance than to the axle of the rollers.

After a second arrangement form Zusteller-bzw according to invention. Distributor car it can be intended for the purpose of the relief of overcoming lane transfers, in particular pavements or such in the form of steps, in addition, that the propelled roles and/or the propelled axle are assigned to the landing-wheel axle lying in front in forward travel. , Completely independently of it, whether the car is to be used as pushed or pulled cars, the overcoming can be improved by such an arrangement of the propelled axle of lane obstacles, in such a way that at least for smaller lane obstacles one than ramp trained mechanism can be replaced to been void for the smooth raising of the roles of the pushed axle on the more highly lying lane level either altogether or but by a comparatively simple and cheap mechanism. Besides the arrangement brings as in driving direction axle still the further advantage lying in front to the propelled axle with itself that with unfavorable, in particular winter lane conditions a better drive security can be achieved. Also a shortening of the total overall length of the car results at the same time from the omission of the mechanism for the smooth raising of the roles of the pushed axle on the more highly lying lane level.

In particularly appropriate way it is further intended in connection with the arrangement of the propelled axle lying in front in driving direction that the roles of the propelled Aachse are more largely or at least equally large than the roles of the dragged axle. With propelled axle lying in front the role size should be as largely selected that the role diameters are larger than those height of lane obstacles, as pavements or such, usually which can be overcome, so that the roles of the propelled axle under switching expenditure-practiced by on the cars thrust or traction power of caused pressure the upper edge of the lane obstacle. curb to e.g. seize and “erklimmen” to be able. In connection with an arrangement of the propelled axle lying in front in driving direction it is sufficient to then assign a simple mechanism to the roles of the dragged axle for smooth raising on the higher lane level. Such a mechanism can be formed in the simplest case by a skid plate. Those the dragged axle assigned skid plate is designed and at its lower surface, this skid at the car chassis, towering above downward, arranged in the simplest case as within the range of the car longitudinal center arranged, rigid handle, whereby the skid the dragged roles is opposite forward-moving trained. In the interest of an optimal Fahrstabililtät of the car also when overcoming lane obstacles it is however appropriately intended that those covers the dragged axle assigned skid plate of at least two skid handles and the role axle opposite so far forward-moving begins that its lower skid length with an only small one, which is appropriate for usual smaller lane unevenness considering distance above the normal role road-contact area.

Selbstverständlch can be also used in place of a skid the roles of the dragged axle opposite forward-moving at the lower surface of the car chassis arranged roller or a pair of roles, whereby the Umfangsssäche of the roller and/or the range of the roles of the pair of roles exhibits one with car present at even lane the small inevitable smaller Fahnbahnunebenheiten appropriate distance to the lane level.

Hand in hand with an arrangement of the propelled axle Verteiler-bzw lying in front. Zustellerwagens can be further intended then that the car chassis at its two front ends is equipped with identical mechanisms for the connection of a grasp handle including connections for the regulation and/or controlling of the power supply the roles of the drive axle of propelling electric motor, so that the car altogether without special expenditure both when more pushed and pulled car be equipped can.

In further single arrangement Verteiler-bzw. Zustellerwagens with a managing indicated wheel arrangement can be intended to its cost-neutral training, alternatively as pulled or pushed cars, in addition, that the car chassis is equipped in the range of its two front ends with identical mechanisms for the connection and/or cultivation of a drive axle, whereby a large simplification is reached in particular by the fact that the drive axle is designed as rigid axle and is assigned it the rollers.

In place of training as Starrachse can regarding the roles of the dragged axle after a particularly appropriate arrangement form Zusteller-bzw according to invention. Distributor car in addition, intended its that the roles are formed by swivel rollers, which are alternatively by means of a yoke around one too their rotation axle senkrechte axle tiltable at the car chassis hung up and by means of a locking device opposite its drag axis pre or running after ascertainable. By such in driving direction 180 DEG - wise ascertainableness of the axle dragged installed as swivel rollers of roles can do on the one hand in certain driving conditions, e.g. when the driving off a pavement or when backing up, which longitudinal stability of the car are substantially improved and also an arbitrarily causable change of the effective wheel base of the car are on the other hand at the same time reached, what in some cases, e.g. when maneuvering the car, is most desirable. A particularly practical organization way could be seen for this in the fact that in their their drag axis in relation to before or running after position from a hand lever and transmission means, arranged at the grasp handle, in particular bowden cables, existing actuation equipment operated by remote control is assigned to the statement of the swivel rollers of the dragged axle.

In place of a separate manual operation of the locking of the roles of the dragged axle in driving direction an aligned, their drag axis in relation to before or running after position it can be naturally also intended that in their respective, aligned position automatically, in particular as a function of at the grasp handle expenditure-practiced the statement of the swivel rollers of the dragged axle, transverse guidance forces automatically einIs and/or is disengaged, which can be managed for example by means of a blocking of the Schwenlagerung by controllable, electromagnet slidegate valves or such.

By the different managing pointed out arrangement forms a preferential design of the car chassis is seen unabgängig in the fact that the car chassis covers a circulating oval tubing framework and by means of a front and a rear cross beam to this attached lengthwise profiled rails as road-contact area those the structure of change as well as a battery box attached at the oval tubing frameworks and also at the oval tubing framework attached rigid oh carrier for a bie both rollers carrying rigid axle, whereby the battery box is supported in two parallel and for lengthwise l-section rails, which stare to oh carriers for those in each case for their part by means of that the rollers and those the auxiliary roles assigned Starrachse against the oval tubing framework are supported. In the interest of as small a dead weight of the car as possible thereby all parts of the car chassis from cuts of aluminum profiles are, so far it Frame parts are, or, for example regarding the oh carriers, formed by aluminum shaped parts.

The invention is in detail descriptive in the following description of example on the basis some remark examples represented in the design.

In the design the figure 1 shows a Stirnansicht of the chassis for a distributor and/or a Zustellerwagen; Figure 2 a side view of the chassis for a distributor and/or a Zustellerwagen when overcoming a lane transfer; Figure 3 a schematic sectional view of the chassis for Verteiler-bzw. Zustellerwagen; Figure 4 a side view of a distributor and/or a Zustellerwagens equipped with a structure of change; Figure 5 a side view Verteiler-bzw equipped with a structure of change. Zustellerwagens when overcoming a lane transfer; Figure 6 a ausschnittweise look-figurative back opinion of the distributor and/or Zustellerwagens after figure 1 to 5 in the increased yardstick; Figure 7 a further ausschnittweise look-figurative back opinion of the distributor and/or. Zustellerwagens after figure 1 to 5 also in the increased yardstick; Figure 8 a ausschnittsweise side view of the front range of the chassis of a distributor and/or a Zustellerwagens after figure 1 to 7 in the increased yardstick; Figure 9 a partial and schaublildliche single opinion of the grasp handle in the increased yardstick; Figure 10 a side view of a modified implementation form Verteiler-bzw. Zustellerwagens with two stare to axles; Figure 11 a side view Verteiler-bzw. Zustellerwagens of the implementation form after figure 10 with one rigid axle and two swivel rollers; Figure 12 a side view of a modified execution form Verteiler-bzw. Zustellerwagens after figure 10 with two stare to axles; Figure 13 a Stirnansicht one distributor bzw.Zustellerwagensnach figure 12; Figure 14 a schematic representation Verteiler-bzw. Zustellerwagens after figure 10 when overcoming a pavement. Figure 15 a look-figurative representation of a detail.

The chassis in the design represented Verteiler-bzw. Zustellerwagens essentially consists of a circulating oval tubing framework 1, to which on the one hand from two parallel profiled material sections formed, u-shaped in the plan view, road-contact areas for a structure of change 2 screen end carrier 3 and 4 and on the other hand oh carrier 13 for a rigid roller axle 5 as well as by means of a cross beam 6 are the front swivel rollers 66 assigned swivel roller hanging forming yokes 14 attached. At the oval tubing framework 1 further höhenverstellbar a grasp handle 8 is attached by means of a collet 7. Furthermore is Verteiler-bzw. Zustellerwagen equipped with a drum brake assembly 12 operatable by means of push pull cables 11.

The two rollers 44 basic landing-wheel axle 5 is in the remark example shown by a rigid pipe material section formed and by means of two oh carriers 13 to the car chassis fastened. The two swivel rollers 66 are hung up by means of a yoke 14 around a vertical axle tiltable at the car chassis in each case. Taken up to in a module mounting plate 15 of the car chassis formed by two to each other parallel arranged l-sections 155 a set of batteries or accumulators is 16 in a battery box 166. Furthermore apart from the battery or accumulator set 16 an electronic gate circuit 17 is accommodated, whereby the gate circuit 17 takes over the regulation of the power supply by the rollers 44 assigned and as wheel hub engines trained as well as direction of rotation-reversible electric motors 18 starting under load and with these by Steuer-und supply lines 19 is connected. A Reihz of sensors is assigned to the signal generation for the Steuerschaltpung 17, from which only a schematic representation is shown in form of a housing 20, whereby the housing 20 at a cross-beam 21 connecting the grasp handle 8 with the car chassis is arranged. The cross-beam 21 is attached in the remark example shown by square profiled material in an educated manner as well as centrically to the rising ends of the oval profile framework 1 of the car chassis and carries upper-ends the grasp handle 8. the grasp handle 8 is arranged according to kind of a Fahrradlenkers with two 22 grasps 23 arranged in each case a curved arm and carries one for the manipulation of the brake levers 24 assigned as drum brakes 11 trained mechanical brakes as well as at least in the design a not in detail represented main switch for Ein-bzw. Switch off energy or the current supply for the wheel hub engines 18.Die electronic gate circuit 17 is laid out in first in detail a switching configuration not shown in the design so that them the power supply of the wheel hub engines 18 obligatorily and as a function of at the grasp handle in car longitudinal direction the attacking and/or expenditure-practiced, by which or course or the thrust measured in the housing 20 accommodated sensors regulates. The electronic gate circuit 17 makes with the car shown in the remark example at the same time the single control of the driving motors for 18 possible in the sense of an anti-slip regulation and/or in the sense of a guidance force support in the kind of a guidance brake mechanism, whereby it is intended for anti-slip regulation that the power supply of the individual driving motors as a function of a number of revolutions difference between the two roles of an axle and for the achievement of a guidance force support the two electric motors of two roles of an axle differently controllable are, in such a manner that they run either with different numbers of revolutions including the number of revolutions zero or however against-intimately, whereby the control of the two wheel hub engines as a function of control signals a guidance strength of recognizing sensor expenditure-practiced at the grasp handle 8 taken place and whereby the sensor is trained in connection with an arrangement of the grasp handle 8 after kind of a Fahrradlenkers and a connection of the grasp handle 8 with the car chassis, formed by only one cross-beam, as the twisting of the cross-beam after direction and size of recognizing sensor. The chassis in the design of the represented distributor bzw.Zustellerwagens is additionally equipped with a mechanism for overcoming gradate-like lane transfers, in particular pavements 100, which consists arranged auxiliary roles of 31 essentially of the front swivel rollers opposite 66 forward-moving and to the driving level under an angle of at least 20 DEG employee ramp 30 as well as in the range between steering 66 and rollers 44 of the car, formed by the rebellion level of the Lenk-66 and rollers 44, whereby the ramp is arranged 30 within the clearance one the face of the car opposite unloading and essentially at height of the car chassis of arranged impact handle 32. The ramp 30 is by guide rollers from each other arranged over two in a distance 33 led lug belts 34 and both guide rollers 33 basic, against which chassis of the car supported framework 35 is formed, within which the two guide rollers 33 in one are stored under an angle of at least 20 DEG in relation to the driving level of the car employee level and whose lower edge 36 runs parallel to the level, in which the two guide rollers 33 is stored. The lug belt 34 is supported thereby in the range between the two guide rollers 33 by means of along the lower edge 36 of the ramp framework 35 stored supporting rollers 37 against this. The ramp framework 35 is behind-ends over a support 370 fastened to the chassis of the car, whereby the support 370 under inserting a shock absorbing rubber pad mechanism 38 is connected with the car chassis. The auxiliary roles of 31 arranged within the range between the steering 66 and the rollers 44 of the car are among themselves by means of a rigid axle 39 connected and by means of these at the chassis of the car hung up. The diameter of the auxiliary roles of 31 is here is smaller than the diameter of the rollers 44. Furthermore the axle 39 of the auxiliary roles of 31 arranged to the swivel rollers 66 is into a larger distance than to the axle of the rollers 44. The auxiliary roles of 31 are provided with a shock absorbing tyre 40. Finally the lug belt is propelable and switching on of the current supply on for that the guide roller 33 assigned electric motor also a printing or a pull-switch not shown in the lug belt 34 or its support more switching on, assigned 34 by means of one one of its guide rollers 33 assigned, in the design Elektromotores not shown.

The chassis in the figures 10 to 15 the design represented of the implementation form Verteiler-bzw. Zustellerwagens consists essentially of in the plan view rectangular a profiled material framework 101, to on the one hand the structure arranged in the design road-contact areas particularly not shown for one in particular as structure of change 102 for the admission Zusteller-bzw. Distributor property and in each case are on the other hand oh carriers 103 for a rigid, rollers 104 basic axle 105 as well as by a swiveling storage 106 and a yoke 107 formed hanging up for around a vertical axle 122 tiltable swivel rollers 108 attached. The rigid axle 105 formed by a pipe material section carries by means of in each case a wheel hub engine direction of rotation-reversible starting under load and 108 propelled rollers 104 and is in driving direction in front lying arranged. The power supply for the propelled rollers 104 forming batteries or accumulators 109 is about centrically accommodated underneath the chassis frame 101 of the car arranged battery box 110 in one, just as an electronic control unit 111 for the regulation of the power supply of the wheel hub engines 108 of the propelled rollers 104. A sensor arrangement is assigned to the electronic control unit 111, which in a housing 112 is accommodated, which in one upper-end the grasp handle 113 to basic, rising cross-beam 114 is switched on. The grasp handle 113 is attached by means of the cross-beam 114 over special photographs 15 at the chassis frames 101 of the car, whereby at the chassis frame 101 beidendig among themselves homogenously trained photographs 115 are arranged, so that the grasp handle 113 basic cross-beam 114 is connectable alternatively to or other end of the chassis frame 101, depending upon which whether the car as pushed or pulled cars to be operated are. The propelled rollers 104 lying in front in the direction of travel exhibit a larger diameter with the remark examples represented in the design, than the dragged axle is forming swivel rollers 108.Zur relief of overcoming lane gradations, in particular from pavements 117 the dragged axle forming swivel rollers 108 with the execution forms after the figures 10.11 and 13.14 in each case a skid plate 116 assigned, which front-end to the lower surface of the chassis frame 101 of the car is fastened and whose skid sheet 118 extends into the range of the role rebellion level 119, in such a manner that (see figure 14) when overcoming a pavement 118 the dragged axle forming swivel rollers 108 in the course of the driving forward of the car gradually on the height that high-lying lane level to be raised. The skid plates 116 consist in the remark example shown in each case of two round material sections 119 from each other arranged in the distance, which within the range of the longitudinal center of the car and the dragged axle forming swivel rollers 108 opposite forward-moving at the chassis frames 101 attached and if necessary behind-end over vertical props 120 additionally against the chassis frame 101 are supported. In the same way the two round material sections can be against each other supported 119 also over transverse props 121. In a special execution form the dragged axle forming swivel rollers 108 concerning their perpendicularly to its rotation axle arranged vertical drag axis 122 arbitrary and alternatively in one this opposite forward-moving or one is this in relation to running after adjustment ascertainable, to which in the remark example shown a mechanical locking mechanism 123 cooperating with the swiveling storage 106 is intended, which by means of bowden cables 124, 125 by an operating grasp 126 arranged at the grasp handle 113 ein-bzw. is disengagable.

In place of swivel rollers 108 ascertainable in one their rotation axle in relation to forward-moving or running after adjustment can be planned regarding the dragged axle in addition, their suspension to as rigid, over for their part rigid oh carrier 127 axle attached to the chassis frame 101, how this is represented in the figure 1. Such an rigid oh rushing formation of the suspension of the roles of 108 of the dragged axle permits those alternatively training of the car as pulled and pushed cars in a simple way by the fact that the access features for the oh carriers 103 and 127 of the two axles of the car are out-arranged identical, so that without a Umsetzbarkait of the grasp handle 113 can be done, which saves a double arrangement of the photographs 115.

With represented the execution form in the figure the 12 is the two, which dragged axle forming roles of 108 a roller 128 upstream, which for its part over in the wesentlihen vertically aligned carrier 129 at the chassis frames 101 of the car it is attached and into the range role on condition-even 119 extended in such a manner that when overcoming a pavement 118 the dragged axle forming swivel rollers 108 in the course of the driving forward of the car are raised gradually to the height of the high-lying lane level.