DE102008059758B4 - Chassis for a slot-guided powered model vehicle - Google Patents

Abstract

Landing gear (31, 31 ') for a slit - guided powered model vehicle (1) having a front end (32) and a rear end (33) articulated to each other, the articulated connection (37, 37') of the front end (32) and Rear carriage (33) exclusively in the longitudinal direction of the chassis (31, 31 ') aligned hinge axis, characterized in that the front carriage (32) and the rear carriage (33) at least partially have a common abutment edge (36) having a longitudinal portion (36 '), which is parallel to the longitudinal axis of the chassis (31, 31') and front end (32) and rear end (33) exclusively along the longitudinal portion (36 ') are hinged together.

Description

The The invention relates to a chassis for a slot-guided driven Model vehicle with a front end and a rear end car are hinged together. Furthermore, the invention relates a slot-guided powered model vehicle.

Slot-guided driven Model vehicles are also known as slot cars. When slot car racing or Slot Racing will be electric-powered racing car models a model racecourse guided in a slot. A model racecourse points one or more lanes each with a slot or guide slot or a slit-shaped Deepening to the leadership from slit-guided Model vehicles on. Left and right of the slot are conductors laid in the carriageway, with the conductors on the surface of the Roadway or sunk in the slot are executed. The power conductors serve for supplying power to one or more electric motors in the model vehicle, the one or the axle of the model vehicle or multiple axles directly above Gears, a gear transmission, a belt transmission or other gear drives. By means of one or more electric motors is usually the rear axle is driven, in some cases there is a four-wheel drive.

Slot guided model vehicles such as model race cars or slot cars have at their front or bottom a Leitkiel in the guide slot the road is running and optionally simultaneously as a pantograph from the conductors in or on the roadway. The speed of the model vehicle will over controlling an electrical controller connected to the road, the one size of the electric Strom, which supplies the electric motors of the model vehicles, changed, for example the voltage, the current or, in the case of an alternating voltage, the frequency of the alternating voltage.

The Invention is not limited to slot cars, but is applicable to all model vehicles, the slit-guided are applicable, for example, model trains, model airplanes, Model ships and boats etc.

On Completely finished racing car models are available on the market, in common Scales of 1:24, 1:32 or 1:43, mostly in plastic and / or metal construction are made. The landing gears of some These finished racing car models consist of a continuous base plate, on which the front and rear axles are rigidly mounted.

To the Others have metal suspensions that are fully assembled or offered as kits become. These are for Hobbyists and professionals thought and will choose with bodies from model kits or with deep-drawn transparent bodies, for example made of polycarbonate, Mistake.

at Metal suspensions for higher Speeds is usually a suspension used, which makes it possible the front axle against the rear axle in different directions to twist a few degrees. This arrangement allows that each Turning inside the rear corner cornering slightly off the road lifts off and thus produces a differential effect. This is necessary because usually both drive wheels with rigid drive fixed sitting on the rear axle. For Good propulsion and good grip are often good adherent tires used, for example, foam rubber tires, the support the propulsion and reduce lateral slippage. Without differential effect would just when using such well-adhering tires driving through curves difficult at high speed. The installation of a real one Differentials would make the vehicle too heavy and impassable if, as often happens, the car loses traction on at least one side of the vehicle. A real differential would be for model vehicles in some cases too expensive.

A Another effect of the suspension is the movements of the rear axle from the front axle to decouple what the guidance of the keel keel in the lane slot and the power consumption improves. By the separation of the chassis in front and rear is the controllability and road holding significantly improved the racing car model.

at known metal trolleys is often a three-point suspension between Front and rear used, where there is usually a point of attachment near the rear axle and two suspension points near the front axle gives. The front and rear carriages move around the rear pivot against each other about the vehicle longitudinal axis and the vehicle transverse axis. Movements around the vehicle's vertical axis are often by interlocking moldings of front and rear cars strong limited. Movements around the vehicle transverse axis between the front and Rear cars are over attenuated the suspensions at the suspension points, usually Coil springs are used.

The two chassis parts, front and rear, are designed as two overlapping sheet metal structures. In this three-point suspension arise when accelerating and decelerating the model race car pitching movements about the vehicle transverse axis, in which Raise and lower the front and rear carriages. In addition, distortions between the front and rear cars may arise around the vehicle's vertical axis, which reduce the precision of propulsion.

Just the pitching motion as the vehicle decelerates causes the bottom plate the rear of the car at extreme deceleration or softer Suspension as far as the roadway approaches that the bottom plate is seated, making the vehicle difficult to control becomes. On the model racecourses, this can become clear after some time Traces in the braking area lead to tight corners, where usually slowed down the most becomes. It is thus the controllability of the vehicle straight reduced just before the corners, where a particularly controlled Control of the vehicle desired is. This does not happen, the spring travel in conventional Chassis unfavorable be severely limited.

in the State of the art are also model vehicles with trolleys known their front and rear carriages around a parallel to the longitudinal axis the suspension aligned hinge axis are rotated against each other can.

So concerns DE 36 15 986 C2 a toy vehicle for game lanes with a supported by the vehicle chassis electric drive motor. The non-slot guided toy vehicle can be supported by pivoting the front wheels when driving on peripheral guide bodies of the game lanes, with a rotatably mounted and standing with the front wheels in connection section while driving to swing the front wheels with a rotatable in both directions, driven by the drive motor frictional pinion to reach frictionally contacted by one or the other pivot position. The vehicle chassis is divided transversely to form a front and a rear chassis part, wherein the two chassis parts are interconnected by a hinge pin with low game rotation.

In DE 36 02 349 A1 is a toy vehicle with self-propelled drive, in particular a toy car for racetrack play facilities with a arranged on the chassis front and rear pair of wheels and a connected to the chassis vehicle body disclosed. To improve and maintain the road contact on roads two axially arranged chassis parts are provided with a formed between the front and rear wheels common parting plane, which are connected by a connecting element different, but freely rotatable with each other. Again, a front chassis part and a rear chassis part are connected only via a longitudinally arranged axis of rotation.

US 2,703,534 relates to a toy car that can be designed as a car, truck or horse-drawn carriage. A toy truck has two parts, namely a cab with front wheels on the one hand and a loading part with rear wheels on the other hand, which are longitudinally interconnected by a rod. The rear carriage is rotatable relative to the front carriage about the longitudinal axis.

US 3 406 480 relates to a toy truck, however, which is not slit-guided and which has a front wheel with front wheels and a rear wheel with rear wheels, which are interconnected via a arranged in the longitudinal axis of the vehicle support shaft.

outgoing From this prior art, the invention is based on the object a chassis for a slot-guided ange trie benes model vehicle and a corresponding slot-guided powered Model vehicle to provide, even at extreme deceleration and in tight turns at high speed a controlled Handling the model vehicle guaranteed.

These Task is solved by a chassis for a slot-guided powered model vehicle with a front end and a rear end, which are hinged together, wherein the articulated connection of front end and rear end only one in the longitudinal direction of Chassis oriented joint axis has, thereby further developed is that the front end and the rear end, at least in sections common bumping edge have a longitudinal section which is parallel to the longitudinal axis the chassis is located and front and rear only along of the longitudinal section are hinged together.

The Invention is based on the idea that front and rear so articulated that pitching movements, d. H. Twists about the vehicle transverse axis and rotational movements be excluded around the vehicle's vertical axis. By means of the articulated Connection of front and rear wagons exclusively in longitudinal direction the vehicle is twisted, the desired differential effect generated between front axle and rear axle. Nick movements, at which front or rear car touching the road are locked out.

According to the invention, the front carriage and the rear carriage have an at least sectionally common abutting edge, which has a longitudinal section which is parallel to the longitudinal axis of the running gear. Along the abutting edge thus a longitudinal section is defined, on which the articulated Ver Bond is realized, which allows the only longitudinal rotation of the front and rear cars against each other. Along the remaining portions of the abutting edge front and rear cars are not interconnected, so that these sections do not hinder the rotation.

Besides, they are Front and rear vehicles according to the invention exclusively along the longitudinal section connected to each other in an articulated manner. So are effectively twists of Front and rear carriages around the other axle as the longitudinal axis locked out. Only the for the roadside and Controllability of model race car or model vehicle useful Rotation about the vehicle longitudinal axis, the desired one Differential effect generated, is structurally released.

Preferably lies the longitudinal section in the symmetry plane of the chassis. Below the symmetry plane of the Vehicle is understood as the central axis in the longitudinal direction of the vehicle, generally centrally between the wheel pairs of the front wheels or rear wheels runs. That individual parts of a model vehicle, such. As the electric motor, not are arranged symmetrically in or on the vehicle is in this Context irrelevant.

There in particular slot cars or other slit-guided model racing vehicles Oval race on lanes in closed laps without crossovers drive, outweigh on such lanes the right or left turns. If alternative the longitudinal section relative to the symmetry plane of the chassis to one side parallel shifted, is advantageously the cornering for the preferred Curve direction improved.

Preferably ends the abutting edge on both sides of the chassis at the same distance from the front edge or trailing edge of the chassis. By this measure are on the side Areas of the landing gear on both sides of the ends of the front end and rear car at the same height arranged so that extra Components, the front and rear to the sides of the chassis connect by means of springs or the rotational movement against each other restrict, symmetrically arranged so that there is no unwanted asymmetry in the mechanics formed.

The impact edge indicates on one side of the symmetry plane of the chassis preferably a running at an angle to the plane of symmetry inclined portion. This oblique section allows both the longitudinal section, which is used to articulate, train, as well as, on the sides of the chassis to arrange the joint edge at the same height.

At the oblique section are preferably a boom of the front end and a boom of the rear carriage delimited from each other. On both sides of the inclined section arise so cantilever arms of the front and rear cars, each widened at the base and narrower towards the tip be, so that forces, which occur in the area of the cantilever arms, in an ideal manner to the Forward car or the rear car to be passed.

Preferably is the oblique section Centered on an axle, which is opposite to the longitudinal axis of the chassis to a Quarter of the width of the chassis is moved in parallel. To this Way are the cantilever arms of the front and rear, which are arranged next to each other, rotationally symmetrical to one another, what kind of the distribution of forces at the junction the cantilever arms is advantageous.

A advantageous distribution is that in the boom arms the base is twice as wide as the top.

advantageously, is the articulated connection in the form of at least one hinge trained, with the front end and Hinterwa conditions along the longitudinal section connected is. Alternatively, front and rear are one piece formed, wherein the abutting edge except for the longitudinal section is designed as a slot and / or recess and in the area of longitudinal section as a layer of reduced thickness, which is a twisting of the front end across from the rear end allows. In In this context, under a slot is a line-shaped recess with a width of less than a millimeter through the entire Thickness of the one-piece Suspension understood. The recess can also be wider. The only connection between the front and rear in the one-piece chassis is in both cases the longitudinal section, the reduced material thickness compared to the rest of the chassis having.

In both cases an articulated connection is realized along the longitudinal section. The alternative embodiments are chosen depending on the area of application, being the one-piece Variant a cost-effective and easy mass production allowed while the hinge variant at higher loads, For example, in ambitious model racing operation is used.

In an advantageous variant, the hinge is designed as a plastic, fiber-plastic or polycarbonate strip, which spans the longitudinal section at least in sections and is fastened or fastened on both sides of the longitudinal section, in particular by means of screwed or screwable pressure plates. Such an art Fabric, fiber plastic or polycarbonate strip has in addition to a hinge function and a spring function and effectively prevents displacement of the front and rear carriage relative to each other in the longitudinal direction of the vehicle.

advantageously, lets the articulated connection a rotation of the front end opposite the Rear carriage around the longitudinal axis less than 5 °, in particular less than 3 °, to. The flat twistability prevents the traction of the Wheels lost goes and the chassis floor comes into contact with the road.

In An advantageous embodiment of the chassis according to the invention is provided, that at least one stop is provided, the front of the car or attached to the rear carriage or is formed and the abutting edge spanned a point, not in the longitudinal section lies, so that the deflection of the rotation about the longitudinal axis of the chassis between the front and rear wheels through the stop is limited. This way is a simple and efficient limitation the deflection angle of the articulated connection about the longitudinal axis of the vehicle.

In A preferred development is the articulated connection of Front and rear vehicles designed springy. The caused by the suspension damping the rotational movements around the joint axis leads to a more stable handling of the inventive chassis and model vehicle.

at a one-piece execution front and rear end of one in the articulated rotary motion elastic material, this suspension is already present. Additionally or in a two-piece execution of front and rear vehicles is advantageously provided that Front and rear over at least one spring are connected to each other.

The at least one spring is preferably as a leaf spring or transverse leaf spring executed the longitudinal section spanning the bumper, wherein preferably the leaf spring or transverse leaf spring through the Rotary axis of the articulated connection between the front end and the rear end runs. Execution as a leaf spring or transverse leaf spring at a central location is special economical and save space. The leaf spring or transverse leaf spring runs through the axis of rotation of the articulated connection between the front end and Rear carriage, so at rest between the front and rear the leaf spring or transverse leaf spring is not loaded. Much more helps the transverse leaf spring, the vehicle in a rest position to bring between front and rear. The leaf spring or transverse leaf spring is advantageously made of spring bronze. This can also be a steel wire or a coil spring the hinge axis.

alternative or additionally it is provided that at least one spring, in particular helical spring, is provided in an area in the front and rear overlap, with connected to the front and rear. The overlapping Area is in particular a stop. The suspension is in this Variant at least partially shifted to the side of the chassis.

Preferably is a spring, in particular coil spring, provided with a stop on the front or rear end on the one hand and with the opposite Point of the rear or front car on the other hand connected.

advantageously, has the front and / or the rear of a base plate on. Such a base plate provides the required space to Structures and parts such as stops, springs and hinges simple and inexpensive Way to install. The base plate can also be integrally front-end and take the rear, with the butt edge in sections as a slot and / or recess and in the longitudinal section as thinner Material that allows the articulated movement is executed.

The Base plate preferably consists at least partially of one Metal and / or a metal alloy, in particular of aluminum or hard aluminum, iron or steel sheet or brass sheet. advantageously, the base plate alternatively or additionally at least partially Plastic and / or carbon fiber composite. These materials are stable and light, although it is also provided that different Areas of the base plate to which various requirements be made of different materials.

If advantageously the front and rear are made of different materials, the chassis for different tire materials, such as foam rubber, hard rubber, etc., prepared. Thus, more or less load is placed on the front axle and the rear axle, so that the weight distribution for the grip and adhesion of the different tire materials is optimized. When driven rear axles with well-adhering foam rubber tires, it is advantageous to put more weight on the front end and with less adhesion by solid rubber tires to distribute the weight rather on the rear. For this variation offer aluminum sheets and egg senbleche on.

to Optimization of the weight distribution is preferably also provided that the abutting edge is the Suspension divided so that the front end is larger than the rear end or smaller than the rear. This can be done, for example be achieved that the cut of the abutting edge in the base plate is rotated by 180 ° around the vertical axis. Also the receiving holder for the body, the additional Weight on front or rear, can either be mounted on the front or on the rear. This Can be selected according to tire type become.

The stability and track attitude of the chassis becomes in a progression with independent innovative Rank further improved if a traverse on the two sides of the Front or rear is provided, which is the longitudinal section the abutting edge and one opposite the longitudinal section receding Bridged portion of the abutting edge, wherein the Traverse in one piece with the front or rear end is formed or with the two Side of the front or rear carriage is connected. In In this case, either the front or the rear one essentially U-shaped Form with two parallel outer arms and therebetween with a recess formed by the abutting edge on, while the other car a substantially T-shaped form having the center bar of the "T" as a central arm in the Recess of the "U" between the Poor of the "U" intervenes. The traverse connects the two bars or arms of the "U". This creates a closed, generally "O" shaped shape of the U-shaped Front or rear, facing an open "U" shape Twists is much more stable and the track position of the chassis improved by the achieved transverse reinforcement.

A one-piece Shape of the front or rear carriage with crossbeam is simple in plastic suspensions achievable by a suitable shaping of the mold, while at Metal trolleys of the car preferably initially as a plate in a suitable Shaping is prepared with recess and that the traverse forming piece then opposite the Rest of the base plate is bent by 90 °, for example. Another Bend by 90 ° results in this case stop points for the pendulum movement, wherein the stop points as bent back Flags can be formed.

Preferably the crossbar has a vertically aligned bridge part and horizontal mounting plates, wherein the mounting plates in particular fastening bores and / or spring eyes. This embodiment is easy to install and retrofit.

Prefers are front and rear by means of the spring eyes the Traverse guided Coil springs resiliently supported against each other. This very simple embodiment The advantage is that the chassis can move quickly and easily Replacement of coil springs of different thicknesses to different tracks are customizable.

at Plastic suspensions is the effect of stabilizing the outer arms the front or rear carriage also by suitable shaping of the mold reachable by the outer arms with a profile, such as a T-profile, U-profile, several longitudinal ribs o. Ä. Provided become.

The The object underlying the invention is also achieved by a slot-guided powered model vehicle with an inventive, above described suspension.

The Invention will be described below without limiting the general inventive concept of exemplary embodiments with reference to the drawings, with respect to all not closer in the text Illustrated According to the invention details the drawings are referenced. Show it:

1 a side view of a model racing vehicle in a schematic representation,

2 the model racing car 1 in a schematic plan view,

3 a schematic view of the top of a known landing gear,

4 a schematic view of the underside of the known landing gear 3 .

5 a schematic side view of a known landing gear,

6 a schematic plan view of an inventive suspension,

7 a schematic side view of the chassis according to the invention 6 .

8th a schematic front view of the chassis according to the invention 6 .

9 a schematic plan view of another inventive suspension,

10 a schematic side view of the inventive suspension 9 .

11 a schematic rear view of the chassis according to the invention 9 .

12 a schematic perspective view of a traverse and

13 a schematic detail of a fastening according to the invention and suspension with traverse.

In The following figures are each the same or similar elements or corresponding parts provided with the same reference numerals, so that a corresponding renewed idea is ignored.

1 shows a schematic side view of a model racing car or slot car 1 , This has front wheels 2 and rear wheels 3 on that on a landing gear 4 are stored. The structure 5 has a front hood 6 , Fenders 7 , a passenger compartment 8th with slices 9 and a rear spoiler 11 on. The structure is drawn, for example, made of polycarbonate and painted. Such a slot car is available as a whole or as a kit.

2 shows a schematic plan view of the slot car according to 1 , The realistic model also has a windshield wiper 10 for the windscreen 9 on.

In 3 is a schematic plan view from above of a known landing gear 21 a slot car shown. Generally, the chassis is in a front end 22 and a rear car 23 split, with the rear 23 hatched, while the front end 22 without hatching remains. The front end 22 is composed of several unspecified, firmly together ver affiliated parts. In this respect, the front end 22 treated as a stable mechanical unit.

In the symmetry axis of the chassis 21 is a suspension and pivot point 24 shown on the front of the car 22 and rear 23 along a vertical connector, such as a screw, are connected together. This connection allows a limited rotation of the front end 22 and rear 23 against each other along a transverse axis and along a longitudinal axis of the chassis, passing through the suspension and pivot point 24 run. Also a slight rotational movement of the front end 22 against the rear 23 around a vertical axis, passing through the suspension and pivot point 24 runs is not completely excluded.

Close to the front wheels 2 are feather points 25 on both sides of the chassis 21 provided on which the front end 22 and the rear 23 are connected to each other by a spring and there are spring-loaded against each other both in the form of a pitching motion and laterally. The lateral movement of the front end 22 to the rear 23 is however by molded parts in the chassis 21 comparatively severely limited.

In the rear 23 is an electric motor 12 stored, with a gear wheel 19 connected to a larger gear 20 engages on the rear wheel axle 17 seated and the rear wheels 3 drives.

Laterally at the front 22 are construction connectors 18 illustrated in which a structure of a slot car or other model vehicle, such as an aircraft or a locomotive mounted. At the front end of the chassis 21 is on a vertical axis of rotation 15 a keel 13 rotatably mounted, which engages in a guide slot in a corresponding roadway.

In 4 is the bottom of the known landing gear 21 according to 3 shown schematically. It can be seen that the rear 23 at the bottom of the chassis 21 close to the front axle 16 runs and at the spring points 25 ends. The lower parts of the front end 22 protrude in the direction of the roadway in the illustrated embodiment not further than the lowermost part of the rear carriage 23 ,

In 4 is shown on both sides of the keel 13 pantograph 14 are arranged. These consist for example of copper wire braids, which each represent the two lines for a plus and a negative pole of a DC power supply. The copper wire braids make contact with two metal rails, which are laid next to the guide slot in the road surface and connected to a DC voltage source, and remove the offered voltage from the metal rails.

The suspension in the form of a triangle between the suspension and pivot point 24 and the two spring points 25 allows a pitching movement of the rear carriage 23 , a rotation about the longitudinal axis of the chassis and a narrower rotation about the vertical axis of the vehicle.

The pitching motion is by an arrow 27 in 5 shown. It can be seen that the in this highly schematic example executed as base plates front 22 and rear 23 Overlap each other over a large area and at the rear end of the front end 22 by means of a vertical Pin, such as a screw, are connected together. At the front end or at the front ends of the rear carriage 25 that under the front of the car 22 is arranged, is a connection of front end 22 and rear 23 represented by a coil spring showing a movement of the rear carriage 23 in the direction of the arrow 27 opposite the front end 22 allowed. In case of heavy braking or fast cornering, it is therefore possible that the front ends of the rear carriage 23 so far nod down that the rear 23 comes in contact with the roadway. In such a case, this may result in the bottom grip of the tires of the slot car being lost and the slot car becoming uncontrollable, or the spring travel must be correspondingly unfavorably limited.

In contrast, in 6 a schematic plan view of an inventive suspension 31 shown in which all minor details are omitted. The suspension according to the invention 31 has a front end 32 from a base plate and a rear cart 33 from another base plate. Over the entire width of the chassis runs a joint edge 36 on the contours of the front end 32 and the back car 33 abut. The butt edge 36 points in the middle, in the longitudinal axis 34 or the plane of symmetry 34 ' of the landing gear 31 a longitudinal section 36 ' on, on the front of the car 32 and rear 33 are hinged together. These are two joints 37 . 37 ' provided, for example, are designed as hinges whose hinges along the longitudinal section 36 ' and are arranged on this.

On both sides of the chassis 31 are the outermost sections of the abutting edge 36 between the front and rear carriages at the same height. This allows stops 40 to provide on both sides, each on the rear 33 are attached or integrally formed with this and the abutting edge 36 across a portion of the front end 32 protrude and limit twists about the longitudinal axis. A common turning path at this point is, for example, 0.5 mm or 1 mm.

Between the joints 37 . 37 ' is a spring 38 shown, which serves the joint rotations about the longitudinal axis 34 absorb and dampen the driving characteristics of the chassis 31 to improve. Alternatively or additionally, could also be at the location of the attacks 40 in each case a coil spring may be provided, which dampens the joint deflections.

On the right side of the chassis 31 is a slant section 36 '' the abutting edge 36 present, a cantilever arm 33 ' the rear carriage and a boom 32 ' of the front end of the vehicle. The boom arms 32 ' . 33 ' are a consequence of that the attacks 40 on both sides at the same height to prevent asymmetries in the joint movement, which could lead to torsion of the landing gear. The oblique design of the inclined section 36 '' offers the advantage that at the ends of the boom, where little material is needed, also little material is available and for the base of the boom arms 32 ' . 33 ' at the front 32 or at the rear 33 wide enough so that forces acting on the boom arms 32 ' . 33 ' act effectively on the entire front end 32 and the complete rear section 33 be passed on.

In 7 is the suspension according to the invention 31 according to 6 shown in a schematic side view. front end 32 and rear 33 are each designed as a base plate, which at the abutting edge 36 abut. The rear car 33 runs, in contrast to the prior art according to the 3 to 5 , not below the front end 32 , A pitching motion is through the articulation along the longitudinal section 36 ' the abutting edge 36 locked out. They are two joints 37 . 37 ' present, between which a spring in the middle 38 , which is designed as a transverse leaf spring, is arranged. The axes 16 respectively. 17 the front wheels 2 and rear wheels 3 are each indicated. On the rear wheel are also still gears 19 . 20 shown, in which the teeth are indicated schematically.

In 8th is a schematic frontal view of the chassis according to the invention 31 according to the 6 and 7 shown. In addition, here are the attacks 40 . 40 ' recognizable, the deflection of the front end 32 against the rear 33 limit. As a dashed line in the vertical direction is the plane of symmetry 34 ' of the landing gear 31 shown. In the hinges designed as a hinge 37 . 37 ' is in 8th also the joint and spring axis 39 shown in the plane of symmetry 34 ' and in the longitudinal axis 34 lie. In 7 and 8th is with the reference numeral 41 the underground is called.

In the 9 to 12 is a further embodiment of a chassis according to the invention 31 ' schematically illustrated in various views, with parts having the same reference numerals as in FIG 6 are characterized, compared to those according to 6 are essentially unchanged.

In the chassis 31 ' according to 9 has the front end 32 a receiving plate 42 for the front axle 16 on, opposite the front of the car 32 in the longitudinal axis of the chassis 31 ' is adjustable so that the wheelbase between the front wheel axle 16 and the rear wheel axle 17 is adjustable. Laterally are also body shots 43 . 43 ' shown.

In contrast to the chassis 31 according to 6 has the landing gear 31 ' according to 9 a traverse 44 on, which are the outer, rear-facing parts of the front end 32 combines. The traverse 44 bridges the bumper edge 36 at its longitudinal section 36 ' and the inclined portion 36 '' ,

The traverse 44 , in the 12 is schematically shown in an embodiment in an oblique view, is made of an L-profile, for example made of aluminum, and has a vertical bridge part 45 and two horizontal mounting plates 46 . 46 ' on, opposite the bridge part 45 are arranged at a 90 ° angle. The bridge part 45 has a recess in the center of its underside, whereby in the installed state, the axis of rotation or longitudinal axis of the chassis 31 ' be left free and a pendulum movement of the front end 32 and rear 33 be allowed against each other. The central forward facing arm of the rear carriage 33 of the landing gear 31 ' in 9 extends at the point of this recess under the crossbar 44 therethrough.

The mounting plates 46 . 46 ' each have mounting holes 47 . 47 ' . 47 '' to be guided through the mounting screws to the crosshead 44 firmly with the front end 32 to connect at attachment points. These are the rear-facing arms of the front end 32 again rigidly connected, so that the road or track position of the chassis 31 ' is improved, since torsions of the chassis 31 ' be greatly reduced. In this way it is even more effectively ensured that the front of the car 32 and rear 33 can only rotate about the longitudinal axis against each other and not in addition to a vertical axis or transverse axis, as by a distortion of the front end 32 would be induced.

The mounting plates 46 . 46 ' wise, as in 9 you can see parts that are over the butt edge 36 protrude and parts of the rear carriage 33 cover. In this overlapping part, the mounting plates 46 . 46 ' the traverse 44 spring eye 47 . 47 ' on, are guided by the coil springs, so that a suspension of rotation about the longitudinal axis of the chassis 31 ' is possible. For that are the spring eyes 47 . 47 ' in the embodiment of the chassis 31 ' according to 9 symmetrical about the longitudinal axis of the chassis 31 ' arranged. The left and right spring points are the same structure.

Between the joints 37 . 37 ' is a polycarbonate strip in this embodiment 38 ' , about a Lexan strip, arranged, to the Schubaufnahme for the joints 37 . 37 ' serves. If the joints 37 . 37 ' not very precisely manufactured, they have in the longitudinal direction of the chassis 31 ' a certain game, which is undesirable. The polycarbonate strip 38 ' serves to minimize or eliminate this game by absorbing the longitudinal thrust during maneuvers. For precisely manufactured hinged joints without axial clearance of the polycarbonate strip can be omitted.

The 10 and 11 show a schematic side view and a schematic rear view of the chassis according to the invention 9 , In both figures you can see how the traverse 44 over the floor panels of the front end 32 or rear car 33 rise.

13 is a schematic detail of a fastening according to the invention and suspension with traverse 44 , The front end 32 and the rear 33 are shown only in their abutting ends at a joint edge. The front end 32 points near the bumper 36 a mounting hole 47 on, through which a screw 50 is guided. By means of one on the screw 50 screwed nut 51 becomes the mounting plate 46 the traverse 44 on the front 32 attached, using a spacer 49 between the front cars 32 and the traverse 44 is inserted.

The mounting plate 46 the traverse 44 surmounted the bumper 36 and overlaps a portion of the rear carriage 33 , In the overlap area, the rear carriage has a hole for a screw 52 on. In alignment with the mounting plate 46 the traverse 44 a spring eye 48 on. The screw 52 is through a spacer sleeve 55 led, which also by the spring eye 48 enough. Upwards is the screw by means of a nut 53 and a washer 54 secured. Between the washer 54 and the mounting plate 46 the traverse 44 is outside the standoff 55 a coil spring 56 arranged so that the screw 52 together with the spacer sleeve 55 can move spring loaded along its longitudinal axis. The travel 57 in the upward direction (marked with "+") and the travel 58 in the downward direction (denoted by "-"), which are indicated by double arrows and dashed lines, respectively correspond to the thickness of the spacer 49 between the traverse 44 and the front end 32 , The traverse forms in the area of the spring eyes 48 . 48 ' the stop and thus the limitation of the pendulum movement of the rear carriage 33 ,

Since the left and the right spring point are the same, the rear vehicle swings 33 , Similar to a rocker to the hinge axis in the vehicle longitudinal axis on the one side of the vehicle and on the other side of the vehicle and vice versa. The suspension travel 57 . 58 , which limit the amplitude of the rocking motion, can by the strength of the spacer 49 between the traverse 44 and the front end 32 be set. It can coil springs 56 be used of different hardness. This allows the suspension 31 ' adapted to different tracks easily and precisely and optimally matched.

All mentioned features, including the drawings alone to be taken as well as individual characteristics, in combination with other characteristics are disclosed, alone and in combination as essential to the invention considered. Embodiments of the invention can by individual features or a combination of several features Fulfills be.

1

slot car

2

front

3

rear wheel

4

landing gear

5

construction

6

bonnet

7

fender

8th

cabin

9

slices

10

windshield wipers

11

rear spoiler

12

electric motor

13

Leitkiel

14

pantograph

15

axis of rotation for guide keel

16

front axle

17

rear axle

18

lateral Construction Connector

19

gear of the electric motor

20

gear at the rear axle

21

landing gear According to the state of the art

22

front end

23

rear car

24

suspension and pivot

25

spring point

26

coil spring

27

Pitching direction

31 31 '

Suspension according to the invention

32

front end

32 '

boom front end

33

rear car

33 '

boom rear car

34

longitudinal axis

34 '

plane of symmetry

35

axis of rotation of the electric motor

36

Butt edge between Front and rear

36 '

longitudinal section the abutting edge

36 ''

oblique section the abutting edge

37, 37 '

joint

38

feather

38 '

polycarbonate strips

39

Joint- and spring axis

40 40 '

attack

41

underground

42

mounting plate for front axle

43 43 '

Body shot

44

traverse

45

vertical bridge part

46 46 '

horizontal mounting plate

47-47 ''

mounting holes

48 48 '

spring eye

49

spacer

50

screw

51

mother

52

screw

53

mother

54

washer

55

Stand Off

56

coil spring

57

travel on

58

travel from

Claims (29)

Landing gear ( 31 . 31 ' ) for a slot-guided powered model vehicle ( 1 ) with a front end ( 32 ) and a rear carriage ( 33 ) which are hinged together, the articulated connection ( 37 . 37 ' ) of front end ( 32 ) and rear cars ( 33 ) only one in the longitudinal direction of the chassis ( 31 . 31 ' ) aligned hinge axis, characterized in that the front end ( 32 ) and the rear carriage ( 33 ) at least in sections a common edge ( 36 ) having a longitudinal section ( 36 ' ) parallel to the longitudinal axis of the chassis ( 31 . 31 ' ) and front end ( 32 ) and rear cars ( 33 ) exclusively along the longitudinal section ( 36 ' ) are hinged together. Landing gear ( 31 . 31 ' ) according to claim 1, characterized in that the longitudinal section ( 36 ' ) in the plane of symmetry ( 34 ' ) of the chassis ( 31 . 31 ' ) lies. Landing gear ( 31 . 31 ' ) according to claim 1, characterized in that the longitudinal section ( 36 ' ) relative to the plane of symmetry ( 34 ' ) of the chassis ( 31 . 31 ' ) is shifted parallel to one side. Landing gear ( 31 . 31 ' ) according to one of claims 1 to 3, characterized in that the abutting edge ( 36 ) on both sides of the chassis ( 31 . 31 ' ) at the same distance to the front edge or trailing edge of the chassis ( 31 . 31 ' ) ends. Landing gear ( 31 . 31 ' ) according to one of claims 1 to 4, characterized in that the abutting edge ( 36 ) on one side of the plane of symmetry ( 34 ' ) of the chassis ( 31 . 31 ' ) one at an angle to the sym plane of metrics ( 34 ' ) oblique section ( 36 '' ) having. Landing gear ( 31 . 31 ' ) according to claim 5, characterized in that at the inclined portion ( 36 '' ) a cantilever arm ( 32 ' ) of the front car ( 32 ) and a cantilever arm ( 33 ' ) of the rear carriage ( 33 ) are delimited from each other. Landing gear ( 31 . 31 ' ) according to claim 5 or 6, characterized in that the inclined section ( 36 '' ) is centered on an axis which is opposite the longitudinal axis ( 34 ) of the chassis ( 31 . 31 ' ) by a quarter of the width of the chassis ( 31 . 31 ' ) is shifted in parallel. Landing gear ( 31 . 31 ' ) according to one of claims 1 to 7, characterized in that the articulated connection ( 37 . 37 ' ) in the form of at least one hinge ( 37 . 37 ' ) is formed, which with front end ( 32 ) and rear cars ( 33 ) along the longitudinal section ( 36 ' ) connected is. Landing gear ( 31 . 31 ' ) according to one of claims 1 to 8, characterized in that the hinge ( 37 . 37 ' ) is formed as a plastic, fiber plastic or polycarbonate strip, the longitudinal section ( 36 ' ) spanned at least in sections and on both sides of the longitudinal section ( 36 ' ), in particular by means of screwed or screwed pressure plates, surface fastened or fastened. Landing gear ( 31 . 31 ' ) according to one of claims 1 to 9, characterized in that the front carriage ( 32 ) and rear cars ( 33 ) are integrally formed, wherein the abutting edge ( 36 ) except for the longitudinal section ( 36 ' ) is designed as a slot and / or recess and in the region of the longitudinal section ( 36 ' ) as a layer of reduced thickness, the rotation of the front end ( 32 ) opposite the rear carriage ( 33 ). Landing gear ( 31 . 31 ' ) according to one of claims 1 to 10, characterized in that the articulated connection ( 37 ) a rotation of the front car ( 32 ) opposite the rear carriage ( 33 ) around the longitudinal axis by less than 5 °, in particular less than 3 °. Landing gear ( 31 . 31 ' ) according to one of claims 1 to 11, characterized in that at least one stop ( 40 ) provided at the front of the vehicle ( 32 ) or at the rear ( 33 ) is attached or formed and the abutting edge ( 36 ) at a point that is not in the longitudinal section ( 36 ' ), so that the deflection of the rotation about the longitudinal axis ( 34 ) of the chassis ( 31 . 31 ' ) between the front end ( 32 ) and rear cars ( 33 ) by the stop ( 40 ) is limited. Landing gear ( 31 . 31 ' ) according to one of claims 1 to 12, characterized in that the articulated connection ( 37 . 37 ' ) of front end ( 32 ) and rear cars ( 33 ) is designed resilient. Landing gear ( 31 . 31 ' ) according to one of claims 1 to 13, characterized in that the front carriage ( 32 ) and rear cars ( 33 ) are connected to each other via at least one spring. Landing gear ( 31 . 31 ' ) according to claim 14, characterized in that the at least one spring as a leaf spring ( 38 ) or transverse leaf spring ( 38 ) is executed, which the longitudinal section ( 36 ' ) of the abutting edge ( 36 ) spans. Landing gear ( 31 . 31 ' ) according to claim 15, characterized in that the leaf spring ( 38 ) or transverse leaf spring ( 38 ) through the axis of rotation of the articulated connection ( 37 . 37 ' ) between the front end ( 32 ) and rear cars ( 33 ) runs. Landing gear ( 31 . 31 ' ) according to claim 15 or 16, characterized in that the leaf spring ( 38 ) or transverse leaf spring ( 38 ) consists of spring bronze. Landing gear ( 31 . 31 ' ) according to one of claims 14 to 17, characterized in that at least one spring, in particular helical spring ( 52 . 56 ), which is in an area in which the front 32 ) and rear cars ( 33 ) overlap with the front of the car ( 32 ) and rear cars ( 33 ) connected is. Landing gear ( 31 . 31 ' ) according to one of claims 14 to 18, characterized in that a spring, in particular a helical spring ( 52 . 56 ), which is provided with a stop ( 40 ) on the front end ( 32 ) or rear carriage ( 33 ) on the one hand and with the opposite point of the rear carriage ( 33 ) or front car ( 32 ) on the other hand. Landing gear ( 31 . 31 ' ) according to one of claims 1 to 19, characterized in that the front end ( 32 ) and / or the rear carriage ( 33 ) has a base plate. Landing gear ( 31 . 31 ' ) according to claim 19, characterized in that the base plate at least partially made of a metal and / or a metal alloy, in particular aluminum or hard aluminum. Landing gear ( 31 . 31 ' ) according to claim 20 or 21, characterized in that the base plate is at least partially made of plastic. Landing gear ( 31 . 31 ' ) according to one of claims 20 to 22, characterized in that the Base plate consists at least partially of a carbon fiber composite. Landing gear ( 31 . 31 ' ) according to one of claims 1 to 23, characterized in that the front carriage ( 32 ) and the rear carriage ( 33 ) are made of different materials. Landing gear ( 31 . 31 ' ) according to one of claims 1 to 24, characterized in that the abutting edge ( 36 ) the landing gear ( 31 . 31 ' ) so divided that the front end ( 32 ) is larger or smaller than the rear carriage ( 33 ). Landing gear ( 31 ' ) according to one of claims 1 to 25, characterized in that a traverse ( 44 ) on the two sides of the front end ( 32 ) or the rear carriage ( 33 ) is provided which the longitudinal section ( 36 ' ) of the abutting edge ( 36 ) and one opposite the longitudinal section ( 36 ' ) receding section ( 36 '' ) of the abutting edge ( 36 ), whereby the traverse ( 44 ) integral with the front end ( 32 ) or rear carriage ( 33 ) or with the two sides of the front end ( 32 ) or the rear carriage ( 33 ) connected is. Landing gear ( 31 ' ) according to claim 26, characterized in that the traverse ( 44 ) a vertically aligned bridge part ( 45 ) and horizontal mounting plates ( 46 . 46 ' ), wherein the mounting plates ( 46 . 46 ' ), in particular fastening bores ( 47 - 47 '' ) and / or spring eyes ( 48 . 48 ' ) exhibit. Landing gear ( 31 ' ) according to claim 27, characterized in that the front carriage ( 32 ) and rear cars ( 33 ) by means of the spring eyes ( 48 . 48 ' ) the traverse ( 44 ) guided coil springs ( 52 . 56 ) are resiliently supported against each other. Slot guided powered model vehicle ( 1 ) with a chassis ( 31 . 31 ' ) according to one of claims 1 to 28.