DE202018006084U1 - Side member and chassis for a road vehicle - Google Patents

Abstract

Longitudinal member for a chassis (2) of a road vehicle (1), wherein the profiled in cross section side rail (8,9) running in the longitudinal direction carrier upright thin-walled support wall (31) arranged at its upper and / or lower longitudinal edge, transversely oriented support wall ( 32, 33), wherein the upright support wall (31) has a plurality of wall openings (34, 35) and wall webs (36, 37) arranged therebetween, wherein the upright support wall (31) has a lattice structure (10) with wall openings (34, 35). and with narrow wall webs (36, 37) between the wall openings (34, 35), wherein at least some wall webs (36, 37) are inclined obliquely to the longitudinal direction of the support and thereby in different directions.

Description

The invention relates to a side member and a chassis for a road vehicle with the features in the independent claims.

Such a longitudinal beam and such a chassis are from the DE 27 02 243 C2 known. The longitudinal beams formed as bent sheet metal profiles have slot-like wall openings on their upright support wall, remaining between the wide wall webs.

It is an object of the present invention to further improve the chassis technology.

The invention solves this problem with the features in the independent claims.

The claimed chassis technology, i. the side member, the chassis and vehicle equipped therewith, the attachment fitting and the method have several advantages.

The formation of the longitudinal members with a grid structure having wall openings with narrow webs arranged therebetween makes it possible to reduce the longitudinal beam weight while maintaining the required strength of the longitudinal member. By saving weight, the total weight of the vehicle can be lowered and / or the weight of the body or the payload can be increased. A reduction in the weight of the longitudinal member and the chassis equipped therewith can also have a favorable effect on the driving behavior. Also advantageous are the material and cost savings. The grid structure is formed in the preferably upright and extending in the carrier longitudinal direction wall of the longitudinal member.

The longitudinal beam can be used for a carrier chassis or an attachment chassis or for a drawbar. The respective side members are referred to below as the drawbar spar and as Chassisholm.

The side member for a carrier chassis can be shortened weight saving compared to prior art designs. The longitudinal support portions in front of and behind an axle receptacle may be e.g. have a length ratio of 1/3: 2/3 or 1/4: 3/4 based on the total length of the longitudinal member or Chassisholm.

With a drawbar and a carrier chassis, a chassis for a trailer can be built. A carrier chassis can be used in the function as an attachment chassis for a motor vehicle for connection to a motorized traction head. The carrier chassis accommodates at least one axle. It can have a short length and weight-saving ends with a greater distance in front of the rear of the vehicle, especially in a stiff and self-supporting vehicle body.

The drawbar and the carrier chassis can be designed as modules. They can vary in size and shape and with their variants can form a modular system for the production of different chassis. With relatively few drawbar and chassis modules, a large number of different chassis can be formed to satisfy various requirements of vehicle manufacturers. The presets may e.g. different vehicle and body lengths and vehicle widths, different vehicle weights, different axle arrangements, etc. relate.

A carrier chassis can also be designed as a container-like self-supporting module unit and receive an axle. Such a modular unit can, for example, according to the DE 10 2013 109 996 A1 be educated. The container with the received axle may extend over the chassis width. He may, if necessary, at the end faces have a support profile for stiffening. The container may have a profiled bottom for receiving a straight or angled axle body. This can, for example, according to the DE 10 2013 109 996 A1 be educated.

The carrier chassis, in particular the longitudinal members, can be connected directly to a floor of the vehicle body or of the vehicle. This can be a direct contact. This saves weight and makes assembly easier. The floor can also absorb and transmit forces, especially in the vehicle longitudinal direction. The chassis can be designed traversenfrei, which saves additional weight.

For a trailer chassis with drawbar and carrier chassis, the side members of the preferred V-shaped rigid drawbar and the parallel side members or support profiles can be connected to the recorded axis of the carrier chassis in different ways with each other and with the bottom of the structure.

The longitudinal members of the drawbar and the side members or support profiles of the carrier chassis can have an axial distance in the mounting position on the vehicle or at the bottom of the structure. This may be a free distance, with the floor transmitting the longitudinal forces between the drawbar and the carrier chassis. This also applies to a container-like carrier chassis.

The space on the other hand can be bridged by a longitudinal connector, the Distances longitudinal member of drawbar and carrier chassis in the longitudinal direction together. This is a so-called indirect connection of said side members or drawbar and chassis arms.

The longitudinal connector is preferably arranged on the upright support walls of the axially adjacent side members and connected thereto. The said floor can thereby rest on the drawbar and Chassisholmen with direct contact and fixed. In addition, the drawbar and the carrier chassis can be mounted and secured separately from each other on the vehicle or vehicle body.

This configuration and arrangement of the side members or drawbar and chassis arms with axial distance and with missing or indirect connection has an independent inventive significance. It can also be used on other side members without the claimed grid structure of the side members. This can e.g. Be supporting profiles or end walls of the container-like carrier chassis.

In another variant, the longitudinal members of the drawbar can be connected directly to the longitudinal members of the carrier chassis. The compound can each be detachable, in particular screwed, or permanently, e.g. welded or glued. When using a longitudinal connector or a direct connection of the side members of drawbar and carrier chassis of the bodywork floor can be relieved.

The chassis length may e.g. can be varied by different longitudinal connectors or by their longitudinally variable connection with the carrier ends or by a longitudinally variable direct connection of said side members. The chassis widths, the drawbar lengths, the drawbar angles, etc. are also variable. The variant width of the modular system can be further increased by means of different longitudinal connectors.

The independently inventive design with missing or indirect connection of the side member or drawbar and chassis arms is particularly advantageous for this and allows particularly large adjustment paths. This design is also particularly favorable for the modular system and its efficiency.

The offered variability also offers advantages for the assembly optimization for variable construction conditions, in particular for positionally variable emphases of the structure. With the center of gravity, the acting on the front end of the drawbar tiller load or Aufliegekraft can change. Their height may be specified for approval reasons or the like.

To compensate for center of gravity displacements, the position of the axle assembly in the vehicle longitudinal direction can be changed in order to keep the drawbar load at the desired value. With the claimed chassis technology, it is possible to make this compensation without a complex calculation of the actual and depending on the structure varying center of gravity. The carrier chassis can be moved at the end of the assembly line in the axial direction on the vehicle floor, if necessary, until the same measured dike load has the desired value.

Alternatively or additionally, the drawbar can be moved in the longitudinal direction relative to the body floor by changing the free drawbar length. The displacement of the drawbar and / or carrier chassis relative to the mounting or vehicle floor usually given attachment points can be made possible by a special design of the attachment points on the respective side members, in particular at the upper transverse carrier walls. The attachment locations may be e.g. be designed as holes for already located on the body floor screws. For the displaceability of the attachment points can be multiple and in a row arrangement to form a register. You can alternatively be designed and arranged as a slot with longitudinal alignment.

A possible change in the relative position between the drawbar and the carrier chassis can be adjusted when connected to one another by different longitudinal connectors or by a variability of the connection points, in particular in the form of a register. With a free distance between the longitudinal members of the drawbar and carrier chassis an adjustment is unnecessary.

In the said grid structure of the upright support wall with a plurality of wall openings with narrow wall webs therebetween, at least some of these wall webs may be inclined at an angle to the longitudinal direction of the support. They may also have an inclination in different directions, in particular towards the front end of the beam and towards the rear end of the beam. Due to the oblique position of the narrow wall webs, the forces and stresses occurring on the respective longitudinal beam can be optimally absorbed and transmitted. The wall webs may extend in particular along the force and voltage curve. The grid structure may have a truss-like shape. The grid structure can be net-like. Some wall bars may cross each other, forming web nodes.

The wall openings are preferably passage openings in the upright support wall. The wall openings can have a different shape and size. You can also have a different orientation. Similar, for example, substantially triangular, wall openings may be alternately aligned opposite set. The surface portion of the wall openings may be equal to or greater than the area ratio of the wall webs.

In the said lattice structure at least some wall openings are arranged one above the other and at the same time have a partial overlap in the longitudinal direction of the support. The intermediate narrow web has an oblique orientation. In an advantageous embodiment, some wall openings have a substantially triangular shape and some wall openings have a substantially quadrangular shape. The wall openings may have straight and / or curved opening edges. The corner areas are rounded in an attractive way.

Some wall openings, preferably all wall openings, are spaced from the bottom edge of the upright support wall. This results below the wall openings a lower solid edge region of the support wall. This is advantageous for the transmission of tensile forces.

Some wall openings in the upright support wall may extend in height to the top of the upright support wall. You can also reach laterally into the upper transverse beam wall. In this way, a lateral recess can be formed at the edge or at the transition point between this upper, transversely directed support wall and the upright support wall. The opening cross-section and thus the weight savings can be increased by such a design.

The upper transverse support wall may have local one-sided or two-sided waisting along one of its longitudinal extensions at one or more locations. The wall width is thereby reduced on the left and / or right side. The fastening means for mounting on the body floor are preferably located in the non-waisted areas of the upper transverse carrier wall. This can also be wall areas above a web node of the grid structure. The upper transversely directed support wall transmits compressive forces at the prevailing bending load. These can be supported and received via the fastening means on the bodywork floor. The load-bearing floor relieves the upper transversely directed support wall and allows weight-saving side panels.

The grid structure can be divided into several sections or structural sections. These can have different structural shapes and can be arranged on different side rail areas. The structural shapes can be adapted to the respective side rail areas and the requirements there, in particular loads or attachments.

The structure can be divided into several main sections and possibly one or more secondary sections. Via the one or more minor sections, e.g. a length adjustment of the grid structure to different carrier lengths done. On a side member, e.g. a drawbar spar, may e.g. always the same main sections are preferably present with the same training and position, with one or more side sections can be arranged in between for length adjustment. At the ends of the longitudinal member, a main portion is preferably arranged in each case. A carrier spar can also have a structure structure of the grid structure. A main section may be arranged in front of and / or behind the main section in the attachment region of the axle (s) and at least one secondary section.

Due to the structure of the grid structure, there are several advantages. On the one hand, the behavior, in particular load behavior, of the variable-length longitudinal member is uniform in the various chassis variants. In addition, there are manufacturing advantages through a standardization and multiple use of production tools. Despite the modular system and large variant width, tooling costs can be reduced and production costs minimized.

The longitudinal members of drawbar and / or carrier chassis may be variable in height in their longitudinal extent. They can have a lower height, in particular at the front and rear end, than in the middle region. A carrier end of a longitudinal member, in particular a drawbar, may have a bend. This can be used to adjust the angle of the V-drawbar to the carrier chassis. It is also for mutual investment and attachment of Deichselholm and Chassisholm advantage.

An offset can alternatively be arranged on a longitudinal connector. The position of the bend on the longitudinal connector can vary, in particular in its longitudinal direction. The bend can thereby be e.g. be arranged closer to the front and to the drawbar facing end or closer to the rear and to the axis end pointing. Further, the crank angle or bending angle may vary. The length of the longitudinal connectors is also variable.

By different longitudinal connectors can be a variety of different Produce chassis shapes with minimal effort. The variety of variants is also possible with a distancing or a direct connection of drawbar and chassis towers. Chassis shapes can vary, for example, in the chassis width, in the chassis length or in the drawbar angle. Additionally or alternatively, the lengths of the side members, in particular the drawbar spars vary, which also increases the variety of variants of the chassis forms.

With the invention, a large variety of different chassis can be produced with little effort. With variance parts and possibly identical parts, a broad modular system can be created. This is beneficial, but not essential.

A variance of chassis can also with minimal effort by the same side members, in particular drawbar and chassis arms, and by different mutual associations, in particular different mounting locations on the vehicle floor or body floor, can be achieved. Thereby, e.g. the distances of the separately mounted longitudinally and transversely mounted without longitudinal member and changed and different lengths and / or widths of the chassis can be realized.

Further variations offer the variable design of the modular side members, in particular drawbar and chassis arms, and the possible arrangement of longitudinal connectors, which may also vary widely, e.g. in their length or their straight or curved shape.

Even the use of variable longitudinal connectors offers a wide range of variance of chassis. The side members, in particular drawbar and chassis arms, can also be identical parts, which minimizes the expense. The longitudinal connectors are inexpensive parts that can be varied inexpensively and with little storage space requirements.

As a manipulated variable for the variant width of the chassis are basically the side members, in particular drawbar and Chassisholme, in itself, their mutual association with or without connectivity and the possibly existing longitudinal connector available.

The longitudinal members of drawbar and / or carrier chassis have an upper edge with a straight longitudinal extent. They may have a lower edge with a straight or bulging longitudinal extent. The bulge is directed at local magnification of the support height down and has a preferably round shape.

The longitudinal members may be formed as a thin-walled and bent or bent carrier profile. The side members of the drawbar and / or carrier chassis can be made of the same material and have the same wall thickness. Alternatively, you may have differences in wall thickness and / or material. Preferably, the side members made of metal, in particular steel. Said carrier profile is designed as a sheet metal profile. Alternatively, other materials, especially composite materials, possible. A support profile may also be connected by connection, e.g. be formed by welding, upright and horizontal wall parts.

A transversely directed support wall, in particular the upper transversely directed support wall, may have a downwardly directed flange at least in regions at the free edge. This flange increases the rigidity.

The longitudinal member of drawbar and / or carrier chassis may be integrally formed. This is advantageous for load and weight reasons. He may alternatively be formed in several pieces.

The upright support wall of a side member may have one or more stiffening portions. Such a stiffening region can be formed by a wall web widened in the longitudinal direction of the support. Alternatively or additionally, the stiffening can be formed by an additionally mounted stiffening part. This may e.g. be plate-shaped. It may be connected to the upright support wall in any suitable manner, e.g. by welding, screws or the like .. The stiffening area may have an interface for an attachment. The interface can be variable and have a register for connection means for attachment of the attachment.

An attachment may be formed in any suitable manner. It can e.g. be designed as an angled support fitting for the structure. Such a support fitting is preferably mounted on at least one drawbar spar and e.g. connected to the front portion of the floor or the structure. Through the register different free drawbar lengths can be achieved.

Alternatively or additionally, a support fitting for a connection to the structure, in particular bodywork, be arranged at the rear end of a drawbar. This can stiffen and support an adjacent juncture to the chassiswood. The stiffening can make a cross brace dispensable.

Another attachment may be a shock absorber, a level controller or the like., The Stiffening example, can be arranged on a chassis pole near an axle. An attachment may also be a jack, a jack, a tank, a container or a carrier for a heater, a spare wheel or the like .. be.

The upright support wall of a longitudinal carrier may have at one end of the carrier a series of positive connection means aligned in the longitudinal direction of the carrier. This is preferably a single row. Due to the series arrangement, a register and a longitudinal adjustability can be formed. The connecting means may be formed in any suitable manner. It may be in particular cup-like circular or elongated wall deformations. By connecting means, the carrier ends of longitudinal members of the drawbar and the carrier chassis can be connected directly by positive engagement and a screw together. Alternatively, these side rails can be connected to the respective end of an intermediate carrier. The longitudinal connector or intermediate carrier has corresponding connection means, which may also be present in a same or similar series arrangement. Due to the arrangement in rows and the register formation an adjustability of the connection point in the longitudinal direction of the chassis and the side members is possible. As a result, different chassis lengths or free pole lengths can be formed.

At the upper transversely directed support wall of a longitudinal member, one or more fastening means for a direct connection to a vehicle body, in particular with its bottom, can be arranged. On a longitudinal member a plurality of fastening means can be distributed in the longitudinal direction of the carrier and arranged in groups to form a register for different axial mounting positions on a vehicle body, in particular at its bottom. Alternatively, the aforementioned formation of a fastener as a slot is possible.

If required, a shunting drive can be arranged on the chassis. The Rangierantrieb may have a plurality of drive units which act individually or in a plurality of the left and right wheels. In one embodiment, a drive unit is arranged on an axis. In particular, it can be arranged with its engine in or on the axle body and centrally drive the assigned vehicle wheel via a drive train, in particular a gear train. The axle may be formed as a handlebar axis with a Radschwinghebel, wherein the drive train extends along the Radschwinghebels, in particular in the interior of the housing. The wheel hub can be arranged on a central drive shaft and driven via the drive train. Such a Rangierantrieb can eg according to DE 10 2017 104 747 A1 be educated.

In another embodiment, a drive unit can be mounted on the outside of the chassis, in particular on the upright support wall of the chassis arms, wherein optionally a stabilizing transverse strut is arranged between the chassis arms and fastened with their ends on the inside. The Rangierantrieb can be arranged in front of or behind the associated axis.

The chassis pole may have a stiffening area in front of and / or behind the axle (s) on the upright support wall. At the stiffening area, a defined interface for the installation of the Rangierantriebs be present. Here also other attachments can be mounted.

For attachment of the drive unit may alternatively or additionally be provided an attachment fitting. This has advantages for a filigree lattice structure of the upright support wall, which can absorb only to a limited extent transverse forces.

An attachment fitting for an attachment has a load-receiving means which is applied and fixed to the upright support wall, e.g. can be clamped. The load-receiving means may have an adapted and on the grid structure form-fitting attacking mold receiving, can be supported with the forces in the carrier longitudinal direction of the longitudinal member. The load-carrying means can also be fastened and supported on at least one transversely directed support wall, in particular on the upper support wall and the fastening means there. The lateral forces can be absorbed together by the longitudinal member and the bottom of the structure.

It is also possible to attach attachments by means of an adapter to a side rail, in particular a chassis tower. The adapter can in turn be e.g. be mounted on a stiffening region of a longitudinal member, possibly by means of a defined interface.

The claimed side member and the chassis formed therefrom may have the following advantageous design features that can be used individually or in any combination with each other.

The wall openings of the grid structure may have a different shape and size.

Some, preferably all, wall openings of the grid structure may be spaced from the bottom edge of the upright support wall.

Some wall openings of the grid structure may extend in height to the upper edge of the upright support wall and laterally into the upper transverse support wall.

Some formed between wall openings wall webs of the grid structure may intersect at web nodes.

At least some wall webs formed between wall openings may have an inclination towards the front beam end, and at least some other wall webs may have an inclination towards the rear beam end.

An interface to a reinforcement region of a longitudinal member may be arranged individually or multiply, in particular in a register.

At the upper transversely directed support wall of a longitudinal member, one or more attachment means may be arranged for direct connection to a vehicle body.

On a longitudinal member a plurality of fastening means for direct connection to a vehicle body in the vehicle longitudinal direction can be distributed and arranged in groups to form a register for different axial mounting positions on a vehicle body. Alternatively or additionally, a fastening means may be formed as a slot.

The longitudinal member may be formed as a drawbar spar a drawbar or as Chassisholm a carrier chassis.

On a longitudinal beam formed as a drawbar beam, a stiffening region may be arranged on a support point for a front edge region of a vehicle body on its upright support wall.

On an upright carrier designed as a chassis rail, a stiffening area in the vicinity of an axle receptacle, in particular in front of and / or behind the axle receptacle or the vehicle axle, may be arranged on the upright support wall.

At the stiffening area and at a possibly there interface of a designed as Chassisholm longitudinal member one or more attachments may be arranged. An attachment may e.g. be designed as a shock absorber, as Rangierantrieb, in particular as its drive unit, a container, as a spare wheel, as a jack, as a lifting support or the like.

A drive unit of a shunting drive can be arranged and supported on the axle or on an upright support wall of a longitudinal member.

In a chassis variant with a drawbar, the longitudinal members of the drawbar and the longitudinal members of the carrier chassis in the longitudinal or direction of travel may be spaced from each other, wherein they are not connected to each other. In another embodiment, the longitudinal members of the drawbar and the longitudinal members of the carrier chassis in the longitudinal or direction of travel can be adjustably connected to each other directly or indirectly by means of a longitudinal connector.

The longitudinal connector may have a straight or curved shape, in particular a bend and optionally a recess or indentation.

On a longitudinal beam can be arranged a mounting hardware for an attachment, which stiffens the upright support wall and is supported and fixed to a transversely directed support wall.

A side rail may have an upper edge with a straight longitudinal extent and a lower edge with a straight or bulging longitudinal extent.

A transversely directed support wall of a longitudinal member, in particular the upper transversely directed support wall, may have at least in regions at the free longitudinal edge a downwardly directed flange.

A transversely directed support wall of a longitudinal member, in particular the upper transversely directed support wall, may at least partially have a one-sided or bilateral waisting.

The carrier chassis can be designed as an attachment chassis for a motorized tractor head of a motor vehicle.

The chassis may have a drawbar connected to the carrier chassis.

The vehicle body of a road vehicle may be connected directly and in contact with the side rails.

In the subclaims further advantageous embodiments of the invention are given.

• 1: Einen Anhänger mit einem Fahrgestell mit Deichsel, Trägerchassis und Längsverbinder nebst Längsträgern in einer Seitenansicht,
• 2: eine perspektivische Draufsicht auf das Fahrgestell und den transparent dargestellten Aufbau von 1 mit einer Variation mit und ohne Längsverbinder,
• 3: eine perspektivische Ansicht von Längsträgern einer Deichsel und eines Trägerchassis und mehreren Verbindungsmöglichkeiten mit direkter Verbindung oder indirekter Verbindung mittels Längsverbinder,
• 4: eine perspektivische Ansicht eines Trägerchassis mit einer Achse und Längsverbindern,
• 5: eine Draufsicht auf das Trägerchassis von 4 mit Darstellung von Anbaumöglichkeiten für einen Rangierantrieb und einen Behälter,
• 6: eine abgebrochene und vergrößerte Seitenansicht eines Längsträgers mit einem Anbaubeschlag,
• 7: eine perspektivische Ansicht eines Längsträgers für ein Trägerchassis,
• 8: eine abgebrochene und vergrößerte Detailansicht eines vorderen Endes des Längsträgers von 7,
• 9: einen Längsträger einer Deichsel in einer perspektivischen Ansicht,
• 10 bis 12: eine in mehrere Abschnitte gegliederte Gitterstruktur in mehreren Varianten,
• 13 bis 16: ein Baukastensystem mit verschiedenen Fahrgestellformen,
• 17: eine Fahrgestellvariante in perspektivischer Ansicht,
• 18: einen vergrößerten Ausschnitt des Fahrgestells von 17,
• 19: einen abgewandelten Längsverbinder,
• 20 und 21: eine weitere Fahrgestellvariante in perspektivischer Ansicht und in Seitenansicht,
• 22: einen vergrößerten Ausschnitt der Deichsel der Fahrgestellvariante von 20,
• 23: einen vergrößerten Ausschnitt des Trägerchassis der Fahrgestellvariante von 20,
• 24 und 25: die Fahrgestellvariante von 20 mit Anbauteilen in perspektivischer Ansicht und in Draufansicht,
• 26: eine Abwandlung der Anordnung der Anbauteile von 24 in einem vergrößerten Ausschnitt,
• 27: ein Baukastensystem der Fahrgestellvariante von 20 und
• 28 und 29: eine Strukturgliederung bei Chassisholmen.

The invention is illustrated by way of example and schematically in the drawings. In detail show:

• 1 : A trailer with a chassis with drawbar, carrier chassis and longitudinal connector together with side members in a side view,
• 2 : A perspective top view of the chassis and the transparent structure of 1 with a variation with and without longitudinal connector,
• 3 a perspective view of side members of a drawbar and a carrier chassis and several connection possibilities with direct connection or indirect connection by means of longitudinal connectors,
• 4 a perspective view of a carrier chassis with an axle and longitudinal connectors,
• 5 : a plan view of the carrier chassis of 4 with representation of mounting possibilities for a shunting drive and a container,
• 6 : a broken and enlarged side view of a longitudinal member with a mounting hardware,
• 7 : a perspective view of a longitudinal member for a carrier chassis,
• 8th : a broken and enlarged detail view of a front end of the longitudinal member of 7 .
• 9 : a longitudinal member of a drawbar in a perspective view,
• 10 to 12 : a lattice structure divided into several sections in several variants,
• 13 to 16 : a modular system with different chassis shapes,
• 17 : a chassis variant in perspective view,
• 18 : an enlarged section of the chassis of 17 .
• 19 a modified longitudinal connector,
• 20 and 21 : another chassis variant in perspective view and in side view,
• 22 : an enlarged section of the drawbar of the chassis variant of 20 .
• 23 : an enlarged section of the carrier chassis of the chassis variant of 20 .
• 24 and 25 : the chassis variant of 20 with attachments in perspective view and in plan view,
• 26 a modification of the arrangement of the attachments of 24 in an enlarged section,
• 27 : a modular system of the chassis variant of 20 and
• 28 and 29 : a structure of Chassisholmen.

The invention relates to a side member (8,9) for a chassis ( 2 ). The invention further relates to the one or more longitudinal members ( 8th , 9) equipped chassis ( 2 ) and a road vehicle ( 1 ) with such a chassis ( 2 ). The invention also relates to a cultivation fitting ( 28 ) and a method for assembling a chassis ( 2 ) on a vehicle body ( 3 ), especially at the bottom. The invention is further based on a modular system ( 55 ) for the chassis ( 2 ) based.

1 shows a vehicle with a chassis ( 2 ) and a vehicle body ( 3 ). The vehicle ( 1 ) is preferably a road vehicle, eg the trailer shown. In another and not shown variants, the road vehicle ( 1 ) be a motor vehicle. The longitudinal or direction of travel ( 45 ) is indicated by arrow. 17 to 19 show a variant of the chassis ( 2 ).

The vehicle body ( 3 ) can be of any type and size. In 1 the structure of a motorhome or caravan is shown. Alternatively, it may be the vehicle body ( 3 ) act of a commercial vehicle, such as a flatbed body, box body, tank or the like.

The vehicle body ( 3 ) has a floor resting on the chassis ( 2 ) rests and is connected to this in a suitable manner via fastening means. The fastening means of the vehicle body ( 3 ) may be formed positively and as eg screws whose heads are mounted in or on the body floor, for example by lamination. The screw shafts with the thread project vertically downwards. The body-side fasteners are not shown for clarity. Instead of the screws may be any other fastening means, such as socket pins, nuts or the like. Be present.

On the chassis ( 2 ) are suitable fasteners ( 14 ) arranged. In the embodiments shown, these are bores for receiving the screw shafts. The connection can be made with screw nuts during assembly of the road vehicle ( 1 ).

The chassis ( 2 ) has a plurality of longitudinal members (8,9). From cross members is preferably disregarded. Alternatively, such may be present.

The chassis ( 2 ) indicates for the trailer shown ( 1 ) a front tiller ( 4 ) and a rear carrier chassis ( 5 ) with at least one axis ( 6 ) on. In the embodiment shown, the axis ( 6 ) a single axis. Alternatively, the axis ( 6 ) be present multiple times to form a tandem axle, triple axle or the like .. The vehicle is in 1 shown in dashed lines. The chassis ( 2 ) may further comprise a braking device with wheel brakes.

The drawbar ( 4 ) is designed as a rigid and V-shaped drawbar. It has obliquely oriented side members ( 8th ), which are also referred to as drawbar spars. At the front end, the drawbar ( 4 ) a coupling device ( 7 ) with a vehicle clutch and possibly parts of a braking device, in particular a run-on device, a handbrake lever or the like., On. At the drawbar ( 4 ), the front edge of the vehicle body ( 3 ) and possibly also a subsequent construction area supported and secured. For this purpose, below explained support fittings ( 24 . 24 ' ) intended. At the drawbar ( 4 ) Further components, such as a support wheel, a drawbar, a receptacle for gas cylinders or the like. Arranged and mounted.

The carrier chassis ( 5 ) according to 2 two parallel side members ( 9 ), which are also called Chassisholm. The side members ( 9 ) carry by means of an axle ( 42 ) the single or multiple existing axis ( 6 ).

The longitudinal members (8,9) have at the top a flat surface on which rests directly in the mounted state of the bodywork and is fixed.

The side members ( 8th . 9 ) of drawbar ( 4 ) and / or carrier chassis ( 5 ) have a profiled cross-sectional shape, for example 3 and 8th is apparent. They have a running in the support longitudinal direction upright and thin-walled support wall ( 31 ) with a transversely oriented support wall arranged at its upper and / or lower longitudinal edge ( 32 . 33 ). The directions up and across also refer to the operating and installation position of the side members ( 8th . 9 ) on the chassis ( 2 ) or on the vehicle ( 1 ).

The side members have at least partially a U-shaped cross-sectional profile. At least one transverse support wall ( 32 . 33 ), in particular the upper support wall ( 32 ), at least partially at its free edge a downwardly directed flange ( 43 ) respectively. 8th and 9 illustrate this education. In the embodiments shown, the one or more transverse support walls (FIG. 32 . 33 ) from its upright support wall ( 31 ) each to the inside of the chassis ( 2 ).

The side members ( 8th . 9 ) are preferably formed in one piece. They can be designed as carrier profiles made of any suitable material, in particular of metal, preferably steel. They can be designed in particular as stamped and bent parts. They can also be designed as curved laser cut parts, in particular sheets. The support walls ( 31 . 32 . 33 ) may be integrally connected to each other, wherein the respective transverse support wall ( 32 . 33 ) and flange ( 43 ) by bending or bending from the upright support wall ( 31 ) are formed. The materials and / or wall thicknesses of the side members ( 8th . 9 ) can be the same or different.

The side members ( 8th . 9 ) have a variable height in the longitudinal direction. The carrier height is smaller at the front and rear carrier end than in the middle region. At the front and / or rear support end, the lower transverse support wall ( 33 ) to form a notch ( 22 ) be shortened. The drawbar handle ( 8th ) can at the rear end of the carrier a laterally bent bend ( 19 ) respectively. The carrier end is angled sideways. The in 2 shown bending angle α can be between 10 ° and 20 °, for example. Conveniently, an angle size between 13 ° to 17 °.

The longitudinal members (8,9) have an upper edge with a straight longitudinal extent and a lower edge with a preferably straight longitudinal extent. In 1 Dashed line represents an alternative, in which a side member, in particular a drawbar ( 8th ), at the lower edge in the central region may have a downwardly bulging and the support height locally magnifying longitudinal extent.

The upright support wall ( 31 ) the side members ( 8th . 9 ) has a grid structure ( 10 ) with a plurality of wall openings ( 34 . 35 ) and with narrow wall bars ( 36 . 37 ) between the wall openings ( 34 . 35 ) on. The wall openings ( 34 . 35 ) are passage openings in the support wall ( 31 ).

The wall openings ( 34 . 35 ) have a different shape and size. In another variant, the shape and size of the wall openings ( 34 . 35 ), eg forming a honeycomb lattice structure. The arrangement and shape of the wall openings ( 35 ) at the front end of the drawbar spars ( 8th ) can, for example, over the length of the drawbar spars ( 8th ) continue. It can also be used in the same or similar manner in the Chassisholmen ( 9 ) to be available.

In the embodiments shown, some wall openings ( 35 ) has a substantially triangular shape. Some other wall openings ( 34 ) may have a different, eg substantially quadrangular or pentagonal shape. The opening edges may have a straight or curved course. The corner areas are rounded.

The mutual alignment of similar wall openings (35,34) may vary. At the front end of the drawbar spars ( 8th ) are oppositely directed triangular wall openings ( 35 ) arranged alternately.

In the grid structure shown ( 10 ) is the area fraction of the wall openings ( 34 . 35 ) equal to or greater than the area proportion of the wall webs ( 36 . 37 ). The side members ( 8th . 9 ) build especially easy.

In the embodiments shown, at least some wall openings ( 34 . 35 ) are arranged one above the other in the vertical direction. They have a partial overlap in the carrier longitudinal direction.

At least some of the wall bars ( 36 . 37 ) are inclined obliquely to the carrier longitudinal direction. They have a tendency in different directions. At least some wall bars ( 37 ) are in the direction of the respective front beam end of their longitudinal member ( 8th . 9 ) inclined. At least some other wall bars ( 36 ) have a slope towards the respective rear beam end. The assignment front / back refers to the in 1 longitudinal direction or direction of travel shown by an arrow ( 45 ) of the vehicle ( 1 ) or to the front and rear of the vehicle ( 1 ).

Some wall webs (36,37) cross each other to form web nodes ( 38 ). At these points, the supporting surface of the upright support wall ( 31 ).

The wall openings ( 34 . 35 ) each have a distance from the lower edge of the upright support wall ( 31 ). This creates a massive lower edge area ( 40 ) of the upright support wall ( 31 ) educated. At this edge, the lower transverse support wall closes ( 33 ) on.

Some wall openings ( 34 . 35 ) rise vertically in height to the top of the upright support wall ( 31 ) and also extend laterally into the upper transversely directed support wall ( 32 ) into it. As a result, a recess at the transition point and at the edge of the support wall ( 33 ) educated. It also a local side waist ( 41 ) on the upper transverse support wall ( 32 ) educated. The wall width is at the sidecut ( 41 ) reduced on one or both sides. 8th shows an example of such training. In the area of a flange ( 43 ) is the sidecut ( 41 ) one-sided. At one end of the support, the flange ( 43 ) be omitted or omitted. This can be a two-sided sidecut ( 41 ) form.

The attachment points ( 14 ) are at the upper transverse carrier wall ( 32 ) arranged. You are there in widened wall areas. These are outside of a sidecut ( 41 ). You can sit above a bridge node ( 38 ) are located.

The upright support wall ( 31 ) of a longitudinal member ( 8th . 9 ) can have one or more stiffening areas ( 12 ) having a widened in the carrier longitudinal direction wall web. At the stiffening area ( 12 ) one or more interfaces ( 13 ) for an attachment ( 23 ) can be arranged. The wall bridge can in the stiffening area ( 12 ) be substantially solid or full-walled.

At a drawbar handle ( 8th ) is eg a stiffening area ( 12 ) in the middle drawbar area and lies in the mounted position under the front area of the vehicle body ( 3 ). The attachment ( 23 ) is in this case, for example, as an angled support fitting ( 24 ) formed with a horizontal flange on one side or on both sides of the longitudinal carrier ( 8th ) supports the bodywork and is fixed here.

The interface ( 13 ) one or more connecting means ( 20 ) for attachment of the attachment ( 23 ), in particular supporting fittings ( 24 ), respectively. These can be positive connection means, in particular cup-like circular or elongated wall deformations. 9 clarifies this training. Alternatively, a connection means ( 20 ) may be formed as a simple passage opening in an undeformed wall land area. At the stiffening area ( 12 ), several connection means ( 20 ) in a row in the longitudinal direction ( 45 ) can be arranged one behind the other. They form a register ( 21 ) or a grid arrangement for a portable mounting of an attachment ( 23 ). As a result, for example, the front body rim can be moved axially and the free drawbar length can be changed.

At the Chassisholm ( 9 ) can also be a stiffening area ( 12 ' ) to be available. This is located, for example, near the axis ( 6 ) and can also have one or more defined interfaces ( 13 ) respectively. The attachment to be mounted here ( 23 ) can eg a shock absorber ( 25 ), a level controller, a jack, or the like. A stiffening area ( 12 ' . 12 " ) may be present on a side member (8,9) also several times and elsewhere.

The upright support wall ( 31 ) of a side member ( 8th . 9 ) can be at a carrier end one in the support longitudinal direction aligned single row of positive connection means ( 20 ) of the aforementioned type. This also allows a register ( 21 ) are formed. The connecting means ( 20 ) can be used for a direct or indirect connection of longitudinal beams ( 8th . 9 ), in particular of drawbar beams and chassis skis. At a drawbar handle ( 8th ), the connecting means ( 20 ) may be arranged at the bend.

As 1 to 3 make clear that the drawbars ( 8th ) and the Chassisholme ( 9 ) are mounted in different ways on the bodywork floor. You can do this directly or indirectly in the longitudinal direction ( 45 ). But it is also possible to get along without such a connection.

2 shows in the upper half of the latter variant, in which the drawbar spars ( 8th ) and Chassisholme ( 9 ) are each mounted individually for themselves and with a mutual axial distance on the body or vehicle floor. In this case, there is no axial connection between the side members ( 8th , 9). The longitudinal forces are transmitted through said floor.

2 shows in the lower half of the variant with an indirect or indirect axial connection of the drawbar spars ( 8th ) and Chassisholme ( 9 ) by means of a longitudinal connector ( 11 ). This is on the upright support walls ( 31 ) of the drawbar spars ( 8th ) and Chassisholme ( 9 ) and firmly connected with these. The longitudinal connector ( 11 ) acts as an intermediate carrier and transmits the longitudinal ( 45 ) acting tensile and compressive forces while driving. This design is also in 1 and in the one variant of 3 shown.

The longitudinal connector ( 11 ) is formed for example as a straight profile part and in turn has a number of positive connection means ( 20 ), in particular cup-like circular or elongated wall deformations, on. These correspond to the similar connection means ( 20 ) at the mutually facing support ends of drawbar ( 8th ) and Chassisholm ( 9 ). In another embodiment, the bend ( 19 ) on the drawbar ( 8th ) omitted, which then has a straight end of the carrier. Instead, the longitudinal connector ( 11 ) a bent shape, in particular a bend ( 19 ' ), for receiving the angular difference of the longitudinal members (8,9). 17 to 19 show this variant described below.

The adapted wall deformations of the connecting means ( 20 ) engage positively in one another and can be clamped together with a screw inserted through. By the series arrangement of the connecting means ( 20 ) are different connection points and distances between the longitudinal members ( 8th , 9) possible.

3 shows in the other variant, the possibility of a direct connection of drawbar ( 8th ) and Chassisholm ( 9 ) by means of the form-locking connection means ( 20 ). The bend ( 19 ) at the rear end of the drawbar ( 8th ) can be attached laterally to the Chassisholm ( 9 ). The notching ( 22 ) is advantageous for both variants of the direct and indirect connection.

In a modification of the embodiment shown, the indirect or immediate connection of the longitudinal members ( 8th . 9 ) in other ways than by the positive connection means ( 20 ) are effected. This is possible for example by a cohesive connection, in particular welding or gluing.

4 to 6 illustrate the attachment of an axle ( 6 ) and possibly other attachments ( 23 ) on the chassis ( 2 ), in particular on the carrier chassis ( 5 ). The axis ( 6 ) can be present singly or multiply. It is preferably formed as a handlebar axis and has a preferably hollow axle body ( 16 ) with a at least one end rotatably mounted on the axle body ( 16 ) mounted Radschwinghebel ( 18 ) on. The wheel swing lever ( 18 ) carries at the free end a wheel hub and possibly also a wheel brake. In the embodiment shown, the axis ( 6 ) as trailing arm axle with an arrow-shaped axle body ( 16 ) educated. It can alternatively a trailing arm axle with a straight axle body ( 16 ) his. The axis ( 6 ) may have a suspension, not shown, for example, an internal rubber or torsion bar suspension, an external screw or air suspension or the like.

The axis ( 6 ) may be formed in the embodiment shown as a continuous axis, in which the axle carrier ( 16 ) extends over the entire chassis width and at both ends a Radschwinghebel ( 18 ) having. Alternatively, a development as a stub axle or semi-axle with a shortened axle carrier ( 16 ) and a one-sided wheel swing lever ( 18 ) possible.

The axis ( 6 ) is suitably by means of an axle carrier ( 15 ) with one or both Chassisholmen ( 9 ) connected. The axle carrier ( 15 ) can, for example, from a carrier plate ( 17 ) at one or both ends of the axle body ( 16 ) are formed. The carrier plate ( 17 ) is attached to an axle 42 ) of a longitudinal member ( 9 ) assembled. The axle body ( 16 ) is in a section of the upright support wall ( 31 ) and the carrier plate ( 17 ) on the support wall ( 31 ) fastened in a suitable manner, for example by means of said positive locking Connecting means ( 20 ). The axis ( 6 ) can also in other ways, for example by a welded joint, with one or more Chassisholmen ( 9 ) get connected.

For the arrangement of one or more attachments ( 23 ) inside or outside of the chassis ( 2 ), in particular on the carrier chassis ( 5 ), one or more cultivation fittings ( 28 ) be present and mounted.

An attachment ( 23 ) can be, for example, a retrofit shunting drive ( 26 ) his. This has two or more on both sides on the outside of the side rails ( 9 ) to be arranged drive units ( 27 ) acting on a vehicle wheel drifting. The drive units ( 27 ) have for this purpose in each case one on the tire or on the rim driving attacking drive roller and a drive motor for the rotating drive and a feed drive for the delivery of the drive roller along with associated gear. Such a drive unit ( 27 ) can, for example, on the outside of a longitudinal member ( 9 ) and by means of a growing plot ( 28 ) are attached.

Another attachment ( 23 ) can eg according to 5 a container or carrier ( 44 ), eg a tank, a spare wheel holder or the like. Such an attachment ( 23 ) can eg in the interior of the chassis ( 2 ) between the longitudinal members ( 9 ) to be ordered. It can also be obtained by means of a growing license ( 28 ) on one or both side members ( 9 ) are attached.

An attachment ( 28 ) is in 6 shown schematically. He has a load handling device ( 29 ), which on the upright support wall ( 31 ) and a mold holder ( 30 ) to the perforated upright support wall ( 31 ), in particular at its lattice structure ( 10 ), is adapted form-fitting. The mold holder ( 30 ) is for installation and support on the upright support wall ( 31 ) provided and trained.

The load handling device ( 29 ) can be formed, for example, by two plate-like or frame-like receiving parts, which on both sides of the upright support wall ( 31 ) are applied with touch contact and connected to each other by screws or the like. This allows the support wall ( 31 ) are clamped on both sides. The receiving parts can also interlock positively for mutual support.

The mold holder ( 30 ) serves for positive engagement on the grid structure ( 10 ), ie at the wall webs ( 36 . 37 ) and / or the wall openings ( 34 . 35 ). The mold holder ( 30 ) can be formed, for example, by pins, which at the carrier webs ( 36 . 37 ), in particular in the corner region of the wall openings ( 34 . 35 ) and the grid structure ( 10 ) hold with an attractive pin distribution between them positively. Alternatively or additionally, a mold holder ( 30 ) be formed as an insert, for example, which form-fit and fit into a wall opening ( 34 . 35 ) can be used. The molds ( 30 ) can be attached to a receiving part of the load-carrying device ( 29 ) and positively engage in the other receiving means.

The load handling device ( 29 ) can be attached to a transversely directed support wall ( 32 . 33 ) and can also be fixed there if necessary. The load handling device ( 29 ) can, for example, with one or more fasteners ( 14 ) on the side member ( 9 ) and / or bodywork, for example, to a screw shaft, are attached. Through this attachment, lateral forces and moments can be absorbed.

The cultivation strike ( 28 ) also has a suitable bonding agent ( 47 ) for the support and permanent or detachable attachment of an attachment ( 23 ) on. This bonding agent ( 47 ) may have a defined interface, eg a specific arrangement of screw holes, fastening pins or other connecting parts. The interface can be used to ensure that only legally approved attachments ( 23 ) to be assembled.

During the assembly of the road vehicle ( 1 ), the prefabricated vehicle body ( 3 ) with the chassis ( 2 ), in particular the drawbar ( 4 ) and the carrier chassis ( 5 ), connected. The development focus ( 46 ) can extend longitudinally ( 45 ) move. For a given axle position thereby changes the drawbar load on the coupling device ( 7 ).

To adjust the desired drawbar load, the axle position and the distance between the coupling point of the coupling device ( 7 ) and the axis ( 6 ) longitudinal ( 45 ) to be changed. For this purpose, the drawbar load is measured during assembly and, if necessary, the carrier chassis ( 5 ) longitudinal ( 45 ) and fixed at the desired location.

For this purpose, the fastening means ( 14 ) have a suitable adjustability, for example, as in the longitudinal direction ( 45 ) arrayed group of holes are formed as a longitudinal slot or in any other suitable manner. An adjustment of the distance between drawbar ( 4 ) and carrier chassis can be accessed via the registers ( 21 ) of the connecting means ( 20 ) between the directly connected drawbar and chassis towers ( 8th . 9 ) or between the longitudinal connector ( 11 ) and the tethered drawbar and chassis towbars ( 8th . 9 ) respectively.

10 . 11 and 12 show by way of example a length carrier (4) which varies in length 8th . 9 ), eg in the form of the illustrated drawbar ( 8th ). The grid structure ( 10 ) is divided into several sections or structural sections ( 49 - 53 ). The sections ( 49 - 53 ) can have different structural shapes and can be arranged on different side rail areas. The structural shapes are adapted to the respective side rail area and the requirements there, in particular by bending load, add-on parts or the like.

The structure structure can be divided into several, eg three, main sections ( 49 . 50 . 51 ) and possibly in one or more secondary sections ( 52 . 53 ) respectively. The main sections ( 49 . 50 . 51 ) may have mutually different lattice structure shapes. The main sections ( 49 . 50 . 51 ) may on the other hand be present uniformly in all longitudinal beam variants. Over the one or more, eg two, additional sub-sections ( 52 . 53 ) can be a length adaptation of the grid structure ( 10 ) to different lengths of the longitudinal member ( 8th . 9 ) respectively.

On a side member ( 8th . 9 ), eg on the drawbar spar ( 8th ), the same main sections ( 49 . 50 . 51 ) may be present with preferably the same training and location. These are, for example, the front and the traction coupling ( 7 ) pointing end of the carrier ( 49 ). This can be the above-described, nested and relatively small triangular wall openings ( 35 ) respectively. In the middle support area, the section ( 50 ), the larger wall openings ( 34 . 35 ) may have in different forms according to the above-described type. In addition, here a stiffening area ( 12 ) with an interface ( 13 ) to be available. This is for example in a modification of the above-described embodiment as a register ( 21 ) educated. A third section ( 51 ) may be located at the rear and rear end of the carrier. Here also large wall openings ( 34 , 35) and possibly connecting means ( 20 ) of the type described above, eg in a series arrangement or in a register ( 21 ), be arranged.

At the in 11 and 12 illustrated longer side members ( 8th . 9 ) are the same main sections ( 49 . 50 . 51 ) available. In particular, the main end sections ( 49 . 51 ) formed the same and arranged in the same place. The difference in length is indicated by a minor section ( 53 ) between the middle and the rear main section ( 50 . 51 ) is arranged. The shape of the wall openings ( 34 . 35 ) of the minor section ( 53 ) to that of the neighboring sections ( 50 . 51 ) be adjusted.

The longest side member ( 8th . 99 ) according to 12 may be another minor section ( 52 ) between the front and middle main sections ( 49 . 50 ). This subsection ( 52 ) can be a similar design of the wall openings as the first main section ( 49 ) respectively.

13 to 16 show a training of the chassis ( 2 ) as a modular system ( 55 ), with which a large variant width of the chassis ( 2 ) can be realized. Variable can thereby the longitudinal members ( 8th . 9 ) and / or the longitudinal connectors ( 11 ) his. In the exemplary embodiments shown, the chassis arms ( 9 ) equal to each other. But this can be done by different drawbar spars ( 8th ) and / or different longitudinal connectors ( 11 ) the width and / or length of the chassis ( 2 ) can be varied. Furthermore, additionally or alternatively, the chassis arms ( 9 ) vary.

As 13 and 14 illustrate in a perspective view and a plan view, the longitudinal connector ( 11 ) with regard to the location of their bend ( 19 ' ) and its bending or bending angle (a) vary. As a result, for example, with constant drawbars ( 8th ) give different drawbar angle in conjunction with different chassis widths.

The longitudinal connector ( 11 ) can be varied in several ways. On the one hand, the bend ( 19 ' ) once closer to the front end of the longitudinal connector ( 11 ) and be arranged once closer to the rear and the rear end. The rear-side Kröpfungsanordnung leads to a larger chassis width.

Additionally or alternatively, the crank angle or bending angle (a) can be varied, which is exemplified in 14 is shown. The offset angle (a) can eg for the connection of the two inner chassis arms ( 9 ) with the inner drawbar spar ( 8th ) are at about 13 °. When connecting the two outer chassis arms ( 9 ) with the outer drawbar spar ( 8th ), the offset angle (a) may be at 15 °, for example. Due to the variable offset angle (a) the two drawbar ends ( 8th ) despite different chassis widths at the same front tiller point. The angle size can also vary with respect to the stated values.

15 and 16 show in perspective and plan views a variant in which the length of the drawbar spars ( 8th ) varies. In this case, in turn, the bend ( 19 ' ) closer to the front or rear end of the longitudinal connector ( 11 ) lie. This results in different levels issued layers of the Chassisholme ( 9 ) and correspondingly different chassis widths. The offset angle (a) is unchanged in this case.

17 to 19 clarify the aforementioned variant of the chassis ( 2 ). This is largely consistent with the above-described first embodiment.

17 to 19 show the distributed arrangement of jacks ( 54 ), for example, directly on the ground (not shown) of the vehicle body ( 3 ) can be mounted. You can from the chassis ( 2 ) and arranged distanced. The jacks ( 54 ) support the uncoupled trailer in the state, allow a leveling and relieve the axle ( 6 ). The jacks ( 54 ) may also be present in the first embodiment.

Differences can eg in the design of the drawbar spars ( 8th ), which have a longer stiffening area ( 12 ). The local interface ( 13 ) can be used multiple times and in a series arrangement with a register ( 21 ) to be available. The support fitting ( 24 ) can thereby over a larger area along the drawbar ( 8th ) are adjusted. In addition, the drawbar spars ( 8th ) in the 10 to 12 illustrated outline of the lattice structure ( 10 ).

Also the Chassisholme ( 9 ), a modified training and in particular a modified grid structure ( 10 ) respectively. In the variant shown, at the front end of the Chassisholme ( 9 ) a greater number of liaison means ( 20 ) as in the first embodiment. The register formed by the series arrangement ( 21 ) is longer than in the first embodiment and extends into the vicinity of the axis ( 6 ). Accordingly, the underlying grid structure changes ( 10 ).

The greater number of connecting means ( 20 ) can on the one hand to increase the possibilities of variation in the assembly of the longitudinal connector ( 11 ) are used, which also according to 19 a larger number of connection means ( 20 ) than in the first embodiment. On the other hand, the enlarged register ( 21 ) the Chassisholme ( 9 ) also to a greater range of variation in a direct connection with a drawbar spar ( 8th ), the longitudinal connector ( 11 ) deleted. In this case, the drawbar spars ( 8th ) at the end the above-mentioned bend ( 19 ).

19 illustrates a bent longitudinal connector ( 11 ) with a bend ( 19 ' ). The bend ( 19 ' ) has an angled shape with a narrow bending area. The above-mentioned bend ( 19 ) on a longitudinal beam (8,9) may have a similar bending shape. In the shown longitudinal connector ( 11 ) can also in the region of the bending point an outside recess or recess ( 48 ) can be arranged. This can in particular be an impression. This stiffens on the one hand the bending area of the longitudinal connector ( 11 ) and on the other hand allows a passing past on protruding cup ( 20 ) of the connected longitudinal member ( 8th . 9 ). The longitudinal connector ( 11 ) may be formed, for example, as a U-profile made of steel or another metal.

In 18 and 19 is the bend ( 19 ' ) at the front end region of the longitudinal connector ( 11 ) arranged. Alternatively, it may be arranged in the manner described above at the rear end portion. In the second variant of 17 to 19 can the shape and design of the connecting means ( 20 ), in particular cup fittings, the same as in the first embodiment.

20 to 29 show a further embodiment variant of the chassis ( 2 ) with a drawbar ( 4 ) and a carrier chassis ( 5 ) and associated longitudinal members ( 8th . 9 ). The embodiment shown largely corresponds to the above-described embodiments and can also be a modular system ( 55 ) form.

The side members or drawbar and chassis arms ( 8th . 9 ) have a lattice structure ( 10 ) with a structure structure. The drawbar and chassis arms ( 8th . 9 ) are connected directly to each other in this embodiment. The connection can be made via a bend ( 19 ) and connecting means ( 20 ) either in a single order or in a register ( 21 ) respectively. The bend ( 19 ) is located at the rear end of the drawbar spars ( 8th ). It can alternatively at the front end of the Chassisholme ( 9 ) can be arranged.

The drawbar spars ( 8th ) have approximately in the central region according to the preceding embodiments, a widened stiffening region ( 12 ) on the upright support wall ( 31 ), together with an interface ( 13 ) for example as a support fitting ( 24 ) trained attachment.

In the chassis variant shown is another stiffening area ( 12 ) at the rear end region of the drawbar spars ( 8th ) arranged. He can use an interface ( 13 ) with one or more connecting means ( 20 ) respectively. This arrangement serves to accommodate a further attachment ( 23 ) in the form of an additional support fitting ( 24 ' ).

The support fitting ( 24 ' ) on both sides of the drawbar ( 8th ) and serves to form a further fixed connection between the respective drawbar spar (FIG. 8th ) and the Vehicle body ( 3 ), in particular vehicle floor. The interface ( 13 ), a register ( 21 ) with several connecting means ( 20 ), eg cup screw connection. This allows an adaptation of the additional support fitting ( 24 ) to a suitable attachment point on the vehicle body ( 3 ).

Due to the arrangement of the support bracket ( 24 ' ) near the rear end of the drawbar spars ( 8th ) and close to the junction between the longitudinal beams ( 8th . 9 ), the chassis ( 2 ) are stiffened at this connection area. On a crossbeam or a cross member can be dispensed with. The entire chassis ( 2 ) may be designed traverse free.

The drawbar spars ( 8th ) can be used in the area of stiffening ( 12 ) and the support fitting ( 24 ' ) is tapered in height and a prescribed notch ( 22 ) respectively. The bend ( 19 ) may be formed in the manner described above.

In the shown further chassis variant can also on the carrier chassis ( 5 ) Modifications exist. In the embodiment shown is in the direction of travel in front of the axis ( 6 ) a stiffening area ( 12 ' ) intended. Behind the axis ( 6 ), another stiffening area ( 12 " ) to be available. At one or both stiffening areas ( 12 ' . 12 " ), an interface ( 13 ) can be arranged.

The interface ( 13 ) at the front stiffening area ( 12 ) can be used to attach a aforementioned shock absorber, not shown here. For this purpose, it has, for example, a horizontal row of three connecting means designed as a passage opening ( 20 ). For stiffening inside a counter-plate on the upright support wall ( 31 ) can be arranged.

The interface ( 13 ) can be further connecting means ( 20 ), eg in the form of simple passage openings in the undeformed support wall web. This can eg be used for mounting a shunting drive ( 26 ) in front of the axle ( 6 ) serve according to 24 and 25 , The drive units ( 27 ) can with their consoles while on the outside of the respective support wall ( 31 ) are mounted directly. Between the drive units ( 27 ) can be a cross strut ( 63 ) are arranged, which via end flange plates on the inside of the respective support wall ( 31 ) and with the respective drive unit ( 27 ) is connected, for example by a performed screwing.

Alternatively, one or more other or additional attachments ( 23 ) at the front stiffening area ( 12 ' ) or the local interface ( 13 ) are mounted as needed. In this stiffening area ( 12 ' ) is the upright support wall ( 31 ) formed largely solid and full-walled.

The rear reinforcement area ( 12 " ) is arranged at a distance behind the vehicle wheel. He can with his interface ( 13 ) for the cultivation of one or more attachments ( 23 ), for example, as a jack ( 62 ) and / or as a spare wheel holder ( 56 ) may be formed. The stiffening area ( 12 " ) and the interface ( 13 ) can spread over a larger area along the Chassisholm ( 9 ) extend backwards. In this area, one or more wall openings ( 34 , 35) of the grid structure ( 10 ) to be available. The stiffening area ( 12 " ) or the interface can be below a wall opening ( 34 ) and at the lower edge area ( 40 ) of the upright support wall ( 31 ) are located.

The said extension allows position variants for one or more add-on parts ( 23 ) longitudinal. As a result, specifications of vehicle body ( 3 ), eg an entrance door and a tread arranged underneath.

As 26 clarifies, the rear stiffening area ( 12 " ) and its interface ( 13 ) also the rear arrangement of a Rangierantriebs ( 26 ) behind the axis ( 6 ). To compensate for the reduced web height of the upright support wall ( 31 ) can in this area an additional shoe-like fitting for mounting the respective drive unit ( 27 ) are grown.

The spare wheel holder ( 56 ) has a carrier ( 57 ), which on both Chassisholmen ( 9 ) acc. 24 and 25 directly or gem. 26 indirectly via an adapter ( 61 ) can be mounted. The adapter ( 61 ) can also be used for other attachments ( 23 ) be used. As 23 clarified, the adapater ( 61 ) in its longitudinal position through the interface ( 13 ) vary.

The interface ( 13 ) has, for example, two larger and, for example, oval wall openings ( 59 ) with vertical orientation. Here on a Chassistäger ( 9 ) the free ends of the carrier ( 57 ) fixed or detachably connected, in particular be hung. At the other driver ( 9 ) on the other side, eg a console ( 58 ) to be assembled. The carrier ( 57 ) can over the wall openings ( 59 ) pivoting with its free end on a Chassisholm ( 9 ) are hung. The shape of the wall opening ( 59 ) may alternatively be designed differently, eg circular, prismatic, in keyhole shape or the like.

At the other end is the carrier ( 57 ) via the console ( 58 ). Here can be a detachable Connection, eg a screw, exist. This allows a demand-based pivoting and possibly pulling out of the carrier ( 57 ) under the vehicle ( 1 ). The carrier ( 57 ) can also alternatively or additionally to the inclusion of another attachment ( 23 ), eg a container not shown, in particular water tanks, are used.

The adapter ( 61 ) is plate-like and may have weight reducing through holes. It can have through holes at the top, which are provided with wall openings ( 60 ) at the rear stiffening area ( 12 " ) and the local interface ( 13 ) correlate. At the bottom, the adapter ( 61 ) the above-described oval wall openings ( 59 ) for receiving the free ends of the carrier ( 57 ) respectively. At the Adapater ( 61 ), the said console ( 58 ) to be assembled.

The Chassisholme ( 9 ) can, in contrast to the above-described embodiments in the area of the axis ( 6 ), in particular the axle receptacle ( 42 ), further connecting means, in particular cup screw connections, for the carrier shield ( 17 ) respectively. This allows the mounting of different widths of carrier shields ( 17 ), which are intended for example for different axle designs. Existing axle designs can therefore be mounted on the chassis ( 2 ) continue to be used. The additional connecting means ( 20 ) are left and right of the attachment point of the axis ( 6 ) at the lower edge area ( 40 ) the support wall ( 31 ) arranged.

27 illustrates a modular system ( 55 ), which with different drawbar spars ( 8th ) and Chassisholmen ( 9 ) can be formed. The said spars ( 8th . 9 ) are directly in the above-described manner via a bend ( 19 ) and the connecting means ( 20 ) with or without register ( 21 ) connected.

In the modular system ( 55 ) there are different lengths of drawbar spars ( 8th ) and Chassisholmen ( 9 ). The angles of the cranks ( 19 ) vary. The lattice structures ( 10 ) are adjusted accordingly. In the manner described above, they can have a structure structure with main and secondary sections.

28 and 29 illustrate such a structure structure for Chassisholme ( 9 ) with different lengths. The grid structure ( 10 ) is divided into a central main section ( 49 ) and a front main section ( 50 ). The middle main section ( 49 ) includes the axle mount ( 42 ) and the upstream and downstream stiffeners ( 12 ' . 12 " ) and interfaces ( 13 ). The front main section ( 50 ) shows the connection means and the possible register ( 21 ) for the preferred direct connection with the respective drawbar spar ( 8th ) on.

At the longer handle variant of 28 is a minor portion of the link structure between the middle and front major sections ( 49 . 50 ). The minor section ( 52 ) has a grid structure ( 10 ) with, for example, differently directed and differently sized triangular wall openings ( 35 ) on.

Both structure divisions also have a backside minor section ( 53 ). This varies in length. It includes, for example, a substantially quadrangular wall opening ( 34 ), which may have a different length depending on the spar and section length. Below the wall opening ( 34 ) is the lower edge of the carrier ( 40 ) arranged. Here also a part of the rear stiffening ( 12 " ) and the interface ( 13 ) can be arranged.

Variations of the embodiments shown and described are possible in various ways. In particular, the features of the exemplary embodiments shown and of the variants mentioned can be combined with each other as desired and optionally replaced.

The cross-sectional geometry of the carrier profiles may vary, for example in the form of a Z or L profile. The lower transversely directed support wall ( 33 ) may be omitted. The side members ( 8th . 9 ) may be formed as a metallic welding part. A training as a multilayer composite body, sandwich body or the like. Is possible. The grid structure ( 10 ) can also vary in terms of shape, size and distribution of the wall openings ( 34 . 35 ) and the wall bars ( 36 . 37 ) and the stiffening areas ( 12 ). The bend ( 19 ) for the drawbar angle can alternatively at the front end of a Chassisholms ( 9 ) can be arranged. The form, number and arrangement of the sections or structural sections ( 49 - 53 ).

LIST OF REFERENCE NUMBERS

1

Road vehicle, trailer, motor vehicle

2

chassis

3

vehicle body

4

shaft

5

Carrier chassis, cultivation chassis

6

axis

7

coupling device

8th

Side member, drawbar spar

9

Side member, Chassisholm

10

lattice structure

11

Straight connector

12

stiffening region

12 '

stiffening region

12 "

stiffening region

13

interface

14

fastener

15

axle

16

Axle body, axle tube

17

carrier plate

18

wheel swing

19

bend

19 '

bend

20

Connecting means, cup screw connection

21

register

22

notch

23

attachment

24

support bracket

24 '

support bracket

25

shock absorber

26

Moving device

27

drive unit

28

mounting bracket

29

Load handler, clamping plate

30

cast recording

31

Support wall upright

32

Carrier wall across top

33

Support wall across bottom

34

Wall opening, quadrangular

35

Wall opening, triangular

36

wall web

37

wall web

38

web nodes

39

Border area above

40

Border area below

41

sidecut

42

axle mount

43

Flange, fold

44

container

45

Longitudinal direction, direction of travel

46

Focus on vehicle body

47

connecting means

48

Recess, imprint

49

Section, structure section

50

Section, structure section

51

Section, structure section

52

Section, structure section

53

Section, structure section

54

lifting support

55

modular system

56

Ersatzradhalter

57

carrier

58

console

59

Wall opening, oval

60

wall opening

61

adapter

62

Jacking

63

crossmember

α

Elbow angle, bending angle

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 2702243 C2 [0002]
• DE 102013109996 A1 [0011]
• DE 102017104747 A1 [0052]

Claims (31)

Longitudinal member for a chassis (2) of a road vehicle (1), wherein the profiled in cross section side rail (8,9) running in the longitudinal direction carrier upright thin-walled support wall (31) arranged at its upper and / or lower longitudinal edge, transversely oriented support wall ( 32, 33), wherein the upright support wall (31) has a plurality of wall openings (34, 35) and wall webs (36, 37) arranged therebetween, wherein the upright support wall (31) has a lattice structure (10) with wall openings (34, 35). and with narrow wall webs (36, 37) between the wall openings (34, 35), wherein at least some wall webs (36, 37) are inclined obliquely to the longitudinal direction of the support and thereby in different directions. Side member after Claim 1 , characterized in that the area proportion of the wall openings (34,35) is equal to or greater than the area ratio of the wall webs (36,37). Side member after Claim 1 or 2 , characterized in that at least some wall openings (34,35) are arranged one above the other and with partial overlap in the carrier longitudinal direction. Side member according to one of the preceding claims, characterized in that some wall openings (35) have a substantially triangular shape and some wall openings (34) have a substantially quadrangular shape. Side member according to one of the preceding claims, characterized in that the longitudinal carrier (8) is designed as a drawbar member of a rigid and V-shaped drawbar (4). Side member according to one of the preceding claims, characterized in that the longitudinal member (9) is designed as a chassis leg of a carrier chassis (5) which receives an axle (6), in particular a handlebar axle with a Radschwinghebel (18). Side member according to one of the preceding claims, characterized in that the lattice structure (10) on a side member (8,9) is divided into a plurality of sections (49-53), which preferably have different structural shapes with each other and are arranged at different side rail portions. Side member after Claim 7 , characterized in that the lattice structure (10) into several main sections (49,50,51) and possibly one or more secondary sections (52,53) is divided, wherein preferably the length of the grid structure (10) by means of or the secondary sections (52,53) is adaptable to different side member lengths. Side member after Claim 7 or 8th , characterized in that on a variable length side member (8,9), in particular a drawbar spar, the same main sections (49,50,51) are provided with preferably the same training and position, wherein for length adjustment one or more secondary sections ( 52, 53) can be arranged therebetween. Side member according to one of the preceding claims, characterized in that the upright support wall (31) one or more stiffening regions (12,12 ', 12 ") with a widened in the carrier longitudinal direction wall web and with an interface (13) for an attachment (23) and / or an adapter (61). Side member after Claim 10 , characterized in that a stiffening region (12) is arranged on a bearing point for a front edge region of a vehicle body (3) and / or on a rear end region of the longitudinal carrier (8) on a longitudinal beam (8) designed as a drawbar spar. Side member after Claim 10 characterized in that a stiffening region (12 ', 12 ") is arranged in front of and / or behind an axle receptacle (42) on a longitudinal member (9) designed as a chassis saw. Side member according to one of the preceding claims, characterized in that the upright support wall (31) at one end of the carrier aligned in the carrier longitudinal direction a single row of preferably positive connection means (20), in particular cup-like circular or elongated wall deformations. Side member according to one of the preceding claims, characterized in that on the upper transversely directed support wall (32) of a longitudinal member (8,9) one or more fastening means (14) for a direct connection to a vehicle body (3) are arranged. Side member according to one of the preceding claims, characterized in that the drawbar Holm and Chassisholm formed longitudinal members (8.9) are provided and designed for direct connection with each other or for indirect connection by means of a longitudinal connector (11), wherein the connection is preferably adjustable , Side member according to one of the preceding claims, characterized in that a End of a longitudinal member (8,9), in particular a drawbar, a bend (19). Side member according to one of the preceding claims, characterized in that the upright support wall (31) at a support end oriented in the longitudinal direction of the carrier line of positive connection means (20), in particular cup-like circular or elongated wall deformations having. Side member according to one of the preceding claims, characterized in that at the front and / or rear support end of the longitudinal member (8,9) a lower transversely oriented support wall (33) shortens to form a notch (22) and reduces the height of the upright support wall (31) is. Longitudinal member according to one of the preceding claims, characterized in that the longitudinal carrier (8,9) as a thin-walled bevelled carrier profile, in particular sheet metal profile, is formed. Chassis for a road vehicle (1), wherein the chassis (2) has a carrier chassis (5) with longitudinal members (9) and at least one axle (6), characterized in that the longitudinal carrier (9) according to at least one of Claims 1 to 19 is formed, wherein the carrier chassis (5) is designed as an attachment chassis for a motorized traction head or the chassis (2) has a to the carrier chassis (5) connected drawbar (4). Chassis for a road vehicle (1), wherein the chassis (2) has a carrier chassis (5) with at least one axle (6) and a rigid, in particular V-shaped drawbar (4), characterized in that the drawbar (4) and the carrier chassis (5) in the mounting position on the road vehicle (1) in the longitudinal direction (45) have a free distance from each other, wherein they are not connected to each other. Chassis to Claim 21 , characterized in that the longitudinal members (8) of the drawbar (4) and the longitudinal members (9) of the carrier chassis (5) in the longitudinal direction (45) are spaced from each other, wherein they are not interconnected. Chassis for a road vehicle (1), wherein the chassis (2) has a carrier chassis (5) with at least one axle (6) and a rigid, in particular V-shaped drawbar (4), characterized in that the carrier chassis (5) and the drawbar (4) have longitudinal members (8, 9), wherein the longitudinal members (8) of the drawbar (4) and the longitudinal members (9) of the carrier chassis (5) are adjustable in the longitudinal direction (45) directly or indirectly via one in the region of upright support walls (31) arranged longitudinal connector (11) are interconnected. Chassis to Claim 22 or 23 , characterized in that the longitudinal members (8) of the drawbar (4) according to at least one of Claims 1 to 19 are formed. Chassis to Claim 22 or 23 , characterized in that the longitudinal members (9) of the carrier chassis (5) according to at least one of Claims 1 to 19 are formed. Chassis after one of Claims 20 to 25 , characterized in that the chassis (2) is formed traverse free. Chassis after one of Claims 20 to 26 , characterized in that on the chassis (2) a maneuvering drive (26) is arranged. Chassis after one of Claims 20 to 27 , characterized in that the chassis (2) as a modular system (55) with a plurality, each different longitudinal beams (8,9) and / or different longitudinal connectors (11) is formed. Road vehicle with a chassis (2) and a vehicle body (3), characterized in that the chassis (2) after at least one of Claims 20 to 28 is trained. Road vehicle after Claim 29 , characterized in that the vehicle body (3) is connected directly and preferably in contact with the longitudinal members (8, 9). Attachment fitting for a longitudinal member (8,9) with an upright support wall (31) with a lattice structure (10), characterized in that the attachment fitting (28) comprises a load receiving means (29), one to the upright support wall (31), in particular has its lattice structure (10), form-fitting adapted shape receptacle (30) and for abutment on the upright support wall (31) and optionally for attachment to a transversely directed support wall (32,33), in particular a local fastening means (14), provided and formed is.

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