Frame construction for a vehicle

Abstract

Frame construction (10) for a vehicle (100, 200, 300, 500), wherein the frame construction (10) has two longitudinal frame elements (12, 14) and two transverse frame elements (16, 18) which define a receiving space (20) in which an oil pan (104) is arranged.

Description

[0001] The invention relates to a frame construction for a vehicle.

[0002] For the energy supply of events, in road construction, and also in disaster relief, it is often necessary to use mobile power supplies, especially mobile power trailers. These power trailers offer a high degree of flexibility regarding the deployment location. Such mobile power generators often use diesel-powered generators. It must be ensured that these diesel-powered generators do not cause any environmental damage at the deployment site.

[0003] The object of the present invention is therefore to create a way to prevent environmental pollution during the operation of mobile power supplies.

[0004] This problem is solved according to the invention by a frame construction for a vehicle, wherein the frame construction has two longitudinal frame elements and two transverse frame elements that define a receiving space in which an oil pan is arranged.

[0005] Such a frame structure can be a component of a vehicle, in particular a component of a chassis. However, it is also conceivable to attach a frame structure according to the invention to a vehicle, in particular to a vehicle chassis.

[0006] The inclusion of an oil sump allows for the collection of any accidentally leaking oil from the generators, preventing it from seeping into the ground. For this purpose, it is advantageous to position the motors or generators within the oil sump so that any leaking oil can be collected directly. The longitudinal and / or transverse frame elements can be made of steel, particularly structural steel. Alternatively, they can be made of sheet metal, specifically a welded sheet metal construction. A design using sheet metal profiles is also conceivable.

[0007] The space for the oil pan can be designed as a compartment within the frame structure. The frame structure can have additional compartments, particularly for different functions.

[0008] The oil pan can be galvanized for particularly good corrosion resistance. Additionally or alternatively, it can be coated, in particular powder-coated or with a KTL coating (cathodic dip coating). The frame structure can also be coated accordingly and protected against corrosion.

[0009] The oil pan can be bolted or welded to the mounting area. In particular, it can be bolted or welded to the other components of the frame structure, especially the longitudinal frame elements and / or the transverse frame elements. This securely holds the oil pan to the rest of the frame structure. Furthermore, it can increase the stability of the frame structure and, in particular, counteract distortion of the frame structure.

[0010] The oil pan may have a chamfered edge on one side wall. In particular, the upper edge of at least one side wall, preferably all side walls of the oil pan, may be chamfered. This counteracts distortion of the oil pan during galvanizing. Additionally or alternatively, crossbeams or cross members may be welded to the bottom of the oil pan to prevent or minimize distortion. Preferably, the oil pan is welded to the crossbeam or cross members by spot welding. Spot welding creates a tack weld pattern. The heat input for this is low, and distortion can therefore be further reduced.

[0011] The oil pan may have a tank bracket. The tank bracket may be welded to the oil pan. A tank can be attached to the tank bracket. Thus, the tank can also be positioned on the oil pan. The oil pan therefore also provides protection if a fuel tank for the engines or generators leaks. The tank bracket may be designed as a strip. The strip may be welded to the bottom of the oil pan.

[0012] The oil pan can include at least one bracket for at least one sensor that can detect whether there is fluid, especially oil, in the oil pan.

[0013] At least one longitudinal frame element, transverse frame element, and / or the oil pan itself can have fastening means, in particular threads, for attaching one or more motors or generators. This allows the motors or generators mounted on the oil pan to be securely fastened. The fastening means for attaching the motors or generators are preferably located outside the oil pan, namely on at least one longitudinal frame element and / or at least one transverse frame element.

[0014] In particular, it is conceivable that a large number of longitudinal frame elements and / or transverse frame elements, especially all longitudinal frame elements and / or transverse frame elements, have one or more fastening means, in particular threads or through-holes / bores for fastening. Alternatively or additionally, the fastening means can be arranged in the oil pan.

[0015] Beneath the oil pan, supports, in particular longitudinal and / or transverse supports, may be provided for bracing and / or welding the oil pan to the frame. When the oil pan is welded to these supports, the frame structure exhibits greater stability. In particular, this measure can also prevent distortion of the frame structure.

[0016] The beams, especially longitudinal beams, can be straight, particularly with a continuous, straight top surface. Alternatively, they can be cranked, creating a step in the surface. The cranked design offers advantages in terms of space-saving placement of the oil pan and the overall height of the frame structure.

[0017] Oil pans with a larger volume can be used if the oil pan protrudes at least partially between two adjacent supports, especially longitudinal supports.

[0018] The frame structure may include a radiator mounting arrangement. Particularly for cooling the engines or generators, it may be necessary to mount a radiator on the frame structure. A defined space may be provided for mounting the radiator on the frame structure. This defined space for the radiator mounting may have one or more frame elements, which in turn have fastening means, preferably in the form of threads or through-holes / bores, so that the radiator can be positioned and fastened at a defined location on the frame structure.

[0019] Especially when dealing with an air cooler, an adequate supply of air must be ensured. For this purpose, the frame structure can incorporate an air supply arrangement. This air supply arrangement can, in particular, be designed as a compartment within the frame structure. The air supply arrangement can be closed by a grille to prevent animals from entering it.

[0020] An end profile can be attached to opposite sides of the frame structure. Such an end profile further increases the stability of the frame structure. Preferably, the end profiles are aligned parallel to the longitudinal direction of the frame structure.

[0021] The end profile can be connected to crossbeams and / or cross frame elements. In particular, the end profile can be connected to the end faces of crossbeams and / or cross frame elements, especially by bolting.

[0022] Since some distortion can occur during the galvanizing of the frame structure, it is advantageous if the crossbeams and / or cross frame elements and / or the end profiles include distortion compensation elements in the area of ​​the connection points between the end profiles and crossbeams and / or cross frame elements. The distortion compensation elements can, for example, be designed as elongated holes. The elongated holes can be arranged, in particular, on the end faces of the crossbeams and / or the cross frame elements.

[0023] The frame structure can incorporate cable management. For example, the cable management can be designed as a compartment within the frame structure.

[0024] The frame structure can include a bracket for an underride guard. This ensures that safety requirements are met even when the frame structure is used in road traffic, for example as part of a trailer.

[0025] The frame structure can include a control cabinet mounting arrangement. The control cabinet mounting arrangement is preferably located at the rear of the frame structure, allowing a control cabinet to be installed there. The control cabinet mounting arrangement can have one or more frame elements, which preferably include fastening elements, particularly in the form of threads.

[0026] The frame structure can include a hook arm mount and / or a roller. This makes it possible to use the frame structure on a hooklift vehicle and to easily unload and place it on the vehicle. The roller is preferably located at the lower rear end of the frame structure.

[0027] The invention also encompasses a vehicle, in particular a trailer, with a frame construction according to the invention. The frame construction can be an integral part of the vehicle, in particular a chassis. In addition to the frame construction, the chassis can include the wheel axles and their mounting arrangement on the frame construction, as well as a drawbar if the vehicle is designed as a trailer. In particular, the chassis can include a parabolic spring assembly, a pendulum axle assembly, or an air spring assembly.

[0028] The drawbar can be designed as a standard drawbar. It can be designed as a Y-drawbar. The drawbar can have a towing device. The towing device can be a towing eye. The drawbar can be height-adjustable.

[0029] To detect fluid in the oil pan, the vehicle can have at least one sensor in the oil pan, in particular a leak sensor.

[0030] The drawbar can be pivotable relative to the frame structure. In particular, it can be moved from a substantially horizontal position to a substantially vertical position. In the vertical position, the drawbar can be locked. The drawbar can be designed as a drawbar for a center-axle trailer. The drawbar can be designed as a modular drawbar, i.e., it can have interchangeable components. An adjustment unit for adjusting the height of the drawbar can be provided. The adjustment unit can be hydraulically operated. In particular, the adjustment unit can be designed with a hand pump and cylinder, especially a double-acting cylinder.

[0031] Alternatively, the adjustment unit can be designed as a spindle adjustment. The drawbar can be designed as a folding drawbar. The drawbar can be located primarily below the frame structure.

[0032] If the frame structure is not part of the chassis, it can be mounted on and attached to a chassis. In particular, it can be detachably attached to a chassis or a basic frame of the vehicle. The vehicle can be designed as a trailer. Alternatively, the vehicle could be designed as a truck.

[0033] The vehicle may include a toolbox bracket. In particular, a toolbox may be mounted on the vehicle. The toolbox bracket may be located below the frame structure. The toolbox may be made of steel, stainless steel, and / or coated. In particular, an anti-corrosion coating may be provided. The toolbox may have intermediate shelves and vertical dividers to define different compartments. The toolbox may contain different compartments for measuring instruments and cables.

[0034] For reinforcement, a wooden or plastic base may be inserted into the toolbox. The toolbox may have a sealing lip on the body. The toolbox may have a lid or flap. The toolbox may have a sealing lip on the body to seal the lid or flap. Guides may be provided for the lid or flap, allowing it to slide under or over the toolbox when opened. Safety cables may be attached to the top of the box to prevent the lid or flap from colliding with the road surface when opened. The lid or flap may be lockable. Locks or profile cylinders may be provided for this purpose.

[0035] The toolbox bracket can be L-shaped or T-shaped. The toolbox can also be attached laterally. It can be screwed or welded to a crossbeam or other point on the frame structure at the bottom. The top of the toolbox can be angled. A guide for the lid or flap can be incorporated into the angled section.

[0036] The vehicle can be designed as a center-axle trailer, in particular a tandem trailer, or a two-axle trailer with a turntable. Especially if the trailer is designed as a center-axle trailer, it may be designed to be lowerable at the rear. Lowerable at the rear means that the rear section of the trailer can be moved towards the ground. However, this does not mean that the trailer can be tipped over on one axle at the rear.

[0037] The vehicle may have a platform at the rear, which may be foldable. An operator can climb onto such a platform to operate components located on the vehicle. A lighting bracket may be mounted on the platform.

[0038] To accommodate different wheel sizes, an interchangeable axle support can be provided. This allows axle supports of varying heights to be used on the vehicle, depending on the size of the wheels. A front axle support can be mounted on a turntable, and a rear axle support at the rear of the vehicle. Alternatively, the entire axle suspension can be designed to be interchangeable.

[0039] The frame structure can be attached to the vehicle's base frame via a container locking mechanism. This container locking mechanism allows the frame structure to be detachably attached to the vehicle's base frame. If the vehicle, particularly the trailer, is to be used for a different purpose, the frame structure and its attached components can be removed from the vehicle's base frame, and the vehicle can then be used for that purpose.

[0040] The axle support can be bolted to the turntable or frame structure. This simplifies replacement. Alternatively, the axle support can be welded. The vehicle's chassis can feature parabolic springs, leaf springs, and / or air suspension.

[0041] The vehicle may have a braking system. The braking system may include a spring-applied brake or a spindle brake. The braking system may include ABS. A weight sensor may be provided, and the weight sensor may work in conjunction with an electronic brake force control system that adjusts the braking force depending on the detected weight. The brake force control system may be combined with the ABS function. Tire pressure sensors may be provided. The tire pressure sensors may be used as weight sensors. The braking force may be detected via a pressure sensor and / or a displacement sensor, depending on the load.

[0042] A rear-view monitoring system may be provided. This system may include one or more proximity sensors, preferably located at the rear of the vehicle. If an object is detected that is too close to the vehicle, an acoustic and / or visual signal may be generated. Furthermore, a brake signal may be generated to activate the brakes, and the brakes may be applied automatically. The rear-view monitoring system may be powered by a towing vehicle or a control unit located on the vehicle. The rear-view monitoring system can be programmed via the braking system.

[0043] The frame structure can be hot-dip galvanized. Alternatively or additionally, it can have a plastic coating. The frame structure can be seawater resistant, in particular according to category C5 - service life class VH (over 25 years) according to DIN ISO 12944 or equivalent. The total thickness of the paint and / or coating of the frame structure at all points, especially on the inside, is preferably in the range of 120 µm to 300 µm, and in particular at least 220 µm.

[0044] The vehicle may have a hood, particularly a removable one, to cover and protect the components of a generator. The hood may be made of plastic, especially fiberglass, aluminum, sheet metal, or steel.

[0045] The vehicle may have anti-spray protective mats, particularly in the wheel arches or fenders. Specifically, the wheel arches or fenders may be lined with these mats. The anti-spray protective mats may be made of plastic, especially polypropylene.

[0046] A socket can be provided at the front of the vehicle, into which a plug normally intended for coupling to a towing vehicle can be inserted. The socket can be powered by a generator or its control unit located on the vehicle. This allows the vehicle's lights to be operated when it is parked.

[0047] A lockable cover may be provided for the control panel of a spring-applied brake, thus preventing (incorrect) operation of the brake.

[0048] The frame structure and / or the vehicle can be fitted with at least one, preferably four or six, crane lifting eyes or recovery eyes. These lifting eyes or recovery eyes can be bolted or welded on. This makes it possible to load the vehicle onto a train or ship, for example, using a crane.

[0049] The vehicle may be equipped with a spare wheel carrier.

[0050] The vehicle can be designed as a low-loader. For this purpose, the wheels are positioned outside the area of ​​the oil pan. In particular, all components mounted on the chassis are located between the wheels.

[0051] The vehicle may have fenders and / or mudguards. The fenders may be designed as half-shell fenders or quarter-shell fenders.

[0052] Further advantages of the invention will become apparent from the description and the drawing. Likewise, the features mentioned above and those described in more detail below can each be used individually or in any combination according to the invention. The embodiments shown and described are not to be understood as an exhaustive list, but rather serve as examples for illustrating the invention.

[0053] They show: Fig. 1. A perspective view of a frame construction; Fig. 2 a longitudinal beam; Fig. 3 a cranked longitudinal beam; Fig. 4 a perspective view of a central axle trailer; Fig. 5 an alternative design of a central axle trailer; Fig. 6 a drawbar; Fig. 7 a two-axle trailer; Fig. 8 the follower of Fig. 7 from a different perspective; Fig. 9 a steering wheel mount; Fig. 10 a central axle trailer with a base frame onto which a frame structure can be placed; Fig. 11a a schematic representation of a circuit diagram of a trailer with air bellows; Fig. 11b a schematic representation of a circuit diagram of a trailer without air bellows; Fig. 11c a schematic representation of a circuit diagram of a trailer with a travel sensor.

[0054] The Fig. Figure 1 shows a perspective view of a frame construction 10. The frame construction 10 comprises longitudinal frame elements 12, 14 and transverse frame elements 16, 18. The longitudinal frame elements 12, 14 and transverse frame elements 16, 18 define a receiving space 20 for receiving an oil pan described later.

[0055] The longitudinal frame elements 12, 14 can be made of or comprise sheet metal strips. The transverse frame elements 16, 18 can be made of or comprise sheet metal strips.

[0056] The longitudinal frame elements 12, 14 have fastening means 22, 24. In the illustrated embodiment, each longitudinal frame element 12, 14 has several fastening means 22, 24. The fastening means 22, 24 are arranged at different positions on the longitudinal frame elements 12, 14. In the illustrated embodiment, the fastening means 22, 24 are designed as threads. They serve to fasten motors or generators that are installed in the oil pan.

[0057] The cross frame elements 16, 18 have fastening means 26, 28. In the illustrated embodiment, both cross frame elements 16, 18 have multiple fastening means 26, 28. In the illustrated embodiment, the fastening means 26, 28 are threaded. The fastening means 26, 28 serve to fasten various attachments.

[0058] The frame structure 10 also includes longitudinal beams 30 and 32. These longitudinal beams serve to support the oil pan. Crossbeams 34 are also provided, which can likewise support the oil pan from below. The oil pan can be welded to the longitudinal beams 30 and 32 and / or the crossbeams 34. Alternatively, the oil pan can be bolted to the frame structure 10. Welding the oil pan to the longitudinal beams 30 and 32 and / or the crossbeams 34 has the advantage of preventing warping of the oil pan's base during galvanizing.

[0059] On their end faces, some crossbeams 34, as well as the cross frame elements 16, 18 and optionally further frame elements 36, have fastening points 38, 40, 42, which serve to fasten an end profile (not shown here). The fastening points 38, 40, 42 are designed as distortion compensation elements. In the illustrated embodiment, they are designed as elongated holes. This allows slight distortion of the frame structure 10 during galvanizing to be compensated for.

[0060] The frame structure 10 has a radiator mounting arrangement 44. The radiator mounting arrangement 44 can comprise longitudinal and / or transverse frame elements with fastening means, in particular threads or through-holes / bores.

[0061] The frame structure 10 further comprises an air supply arrangement 48. The air supply arrangement 48 is essentially formed by the space between the transverse frame elements 16, 46. The air supply arrangement can be covered by a grille (not shown here). The grille can be designed as a grating, making it walkable.

[0062] The frame structure 10 includes a control cabinet mounting arrangement 50. The transverse frame element 46 can be part of the control cabinet mounting arrangement 50. The frame structure 10 can include further longitudinal elements 52, 54 and, if necessary, a transverse element 56 as further components of the control cabinet mounting arrangement 50, each of which has fastening means, in particular threads, for fastening a control cabinet. Gaps or compartments 58 of the frame structure 10 that remain after the installation of assemblies or functional elements, such as an oil pan, control cabinet, or fan, can be covered by a cover, for example, wood, plywood, and / or sheet metal. The use of sheet metal has the advantage that fastening means, such as threads, can be formed in the sheet metal.

[0063] The frame structure 10 has a bracket 60 for an underride guard. The underride guard can be rigid or foldable.

[0064] The Fig. Figure 2 shows the longitudinal beam 30 in perspective. The longitudinal beam 32 is designed analogously. The longitudinal beam 30 has a front section 30a and a rear section 30b. The rear section 30b is higher than the front section 30a. Both sections 30a and 30b are designed as I-beams, but could alternatively also be designed as H-beams or hollow sections. The top surface 30c is straight, specifically without a step or offset. Alternatively, the longitudinal beam 30 can be designed with a constant height, so that sections 30a and 30b have the same height. In this case, the longitudinal beam 30 can also be designed as a single piece.

[0065] The Fig. Figure 3 shows an alternative embodiment of a longitudinal beam 30.1. The longitudinal beam 30.1 is cranked. In particular, the front section 30.1a is offset upwards relative to the rear section 30.1b. The upper surface 30.1c is stepped. The front section 30.1a and the rear section 30.1b overlap in sections. A steering ring of a trailer can be attached to the front section 30.1a. An oil pan can be arranged next to the rear section 30.1b. This allows the oil pan to be recessed between two parallel longitudinal beams 30.1, resulting in a space-saving arrangement of the oil pan. Furthermore, this measure allows the use of an oil pan with a larger volume.

[0066] The longitudinal beam 30.1, in particular the front and rear parts 30.1a, 30.1b, can be designed as an I-beam, H-beam or hollow profile.

[0067] The Fig. Figure 4 shows a perspective view of a vehicle 100, in particular a (central axle) trailer, especially with a leaf spring assembly 102 comprising two wheel axles. In the illustrated embodiment, the frame structure 10 is part of the trailer's chassis. It can be seen that an oil pan 104 is inserted between the longitudinal frame elements 12, 14 and the transverse frame elements 16, 18. The oil pan 104 is bolted to the longitudinal frame elements 12, 14. The upper part of the side walls 106, 108, 110, 112 of the oil pan 104 is chamfered. This prevents distortion during galvanizing.

[0068] The oil pan 104 has tank brackets 114 to which a fuel tank for engines or generators not shown here can be attached.

[0069] It can be seen that the cooler mounting assembly 44 comprises two longitudinal elements 116, 118. Numerous mounting plates 120 are also visible, to which further components can be screwed, for example a cover for the components.

[0070] The frame structure 10 also features end profiles 122, which are attached at the fastening points 38, 40, 42. The end profile 122 can also have fastening means, in particular threads or screw points, for attaching a cover, etc.

[0071] A cable guide 124 is provided in the rear area of ​​the frame structure 10. The cable guide 124 is advantageously located in the area of ​​the switchgear mounting assembly 50. A side underride guard 126, 128 is also visible.

[0072] The drawbar 130 has a towing eye 132. The drawbar 130 is height-adjustable. For this purpose, an adjustment unit 134 is provided. In the illustrated embodiment, the adjustment unit 134 is designed as a spindle adjustment or comprises a spindle. Alternatively, the adjustment unit 134 could be designed as a hydraulic adjustment unit. A hydraulic adjustment unit can, in particular, comprise a double-acting cylinder, a hand pump, and a changeover valve. Furthermore, a support 136 is arranged on the drawbar 130.

[0073] A control unit 138 for a brake system is also provided. The brake can be designed as a spring-applied brake. The control unit 138 can be protected against unauthorized operation, for example by a lockable cover.

[0074] The leaf spring assembly 102 comprises leaf springs 140. As an alternative to a leaf spring assembly, a parabolic spring assembly or an air spring assembly would also be conceivable. The wheel axles have a center centering mechanism.

[0075] The Fig. Figure 5 shows an alternative configuration of a vehicle 200, which is also designed as a (central axle) trailer. The main difference is that the oil pan 104 is welded in and projects between the longitudinal beams 30, 32. This results in a larger volume for the oil pan 104. In this case, the mounting points 202 for attaching motors or generators are not located next to the oil pan 104, but rather extend through or are attached to the oil pan 104.

[0076] The support 136 is not located on the drawbar 130, but on the frame structure 10. However, an arrangement on the drawbar 130 would also be conceivable. In the case of vehicle 100, the Fig. 4 would also be an arrangement of the support 136 on the frame structure 10. Furthermore, it can be seen that a toolbox holder 204 is provided.

[0077] The Fig. Figure 6 shows an alternative embodiment of a drawbar 230. The drawbar 230 can be pivotally mounted at point 232 on the frame structure 10 or a base frame of a trailer. A support 136 is arranged on the drawbar 230. The drawbar 230 can rest on the ground via this support. The support 136 is length-adjustable. An operating crank 234 is provided for this purpose. The drawbar 230 can be pivoted relative to the frame structure 10 or a base frame of a trailer by means of a pivoting mechanism 236, which is actuated, in particular, hydraulically or pneumatically.

[0078] The drawbar 230 also features a towing eye 238, which allows connection to a towing vehicle. A connecting section 240 enables the towing eye 238 to be adjusted in one direction parallel to the longitudinal direction of the drawbar 230, as well as orthogonally to it. This allows for adaptation to the towing vehicle being used. To facilitate this adjustment, the connecting section 240 has different hole patterns. The drawbar 230 can be used as an alternative to the drawbar 130 on center-axle trailers.

[0079] The Fig. Figure 7 shows an alternative configuration of vehicle 300. Vehicle 300 is designed as a two-axle trailer with a turntable or steering ring. Vehicle 300 also features the frame construction 10 with the components described above. Vehicle 300 has a drawbar 302 with a towing eye 304. The drawbar 302 is designed as a Y-drawbar. It is connected to an axle bracket 308 at point 306, in particular by a pivot of 90°. A weld-in bushing may be provided at point 306. An axle bracket 310 is also provided at the rear of vehicle 300. The axle brackets 308 and 310 are interchangeable to accommodate differently dimensioned wheels 312 and 314.

[0080] A toolbox 314 is arranged below the frame structure 10. A foldable platform 316 is located in the Fig. The platform 316, shown in the folded-down position in Figure 7, is also provided. An operator can stand on the platform 316 to, for example, operate a control cabinet (not shown here) located at the rear of the vehicle 300. Such a platform 316 can also be used on a central axle trailer. The platform 316 can also serve as an underride guard. A side underride guard 318 is also visible.

[0081] The Fig. Figure 8 shows vehicle 300 in an alternative view. Here, platform 316 is folded down.

[0082] The Fig. Figure 9 shows an axle suspension 400 designed as a turntable with a (ball) steering ring 401, as it can be used on vehicle 300. Without the (ball) steering ring, the axle suspension can be used at the rear of a vehicle. This is shown in the Fig. 1 with reference number 400a.

[0083] In the Fig. Figure 9 clearly shows the interchangeable axle bracket 308. Axle brackets 308 of different heights can be kept on hand, and a suitable axle bracket 308 can be used depending on the wheel size. The same applies to the axle bracket 310. The axle brackets 308 and 310 can each be made from a single piece of metal that is appropriately bent and into which the described recesses for further components are machined. The drawbar 302, not shown here, is pivotable and can be locked in a substantially vertical position. Locking can be achieved, for example, by bolts inserted through bolt receptacles 402 and 404. A wheel axle can be attached to a leaf spring 406. The leaf spring 406 is slidably mounted at the rear and rests on a plate arranged in a slot 410. A bolt is arranged in a bore 411, which prevents the leaf spring 406 from popping out.A further slot 412 can accommodate a reinforcing plate. A bracket 413 for an air tank of the compressed air system can also be provided. A bracket 414 can be used to mount an air spring valve (for example, the air spring valve 690 described later, which can serve as a position sensor, particularly for detecting spring travel), a position sensor, or a brake force regulator, in particular a valve thereof. The aforementioned brackets can be designed, for example, as an opening or a thread.

[0084] To limit suspension travel, a stop 407 can be provided for the suspension. A height-adjustable element, for example a spring, can be attached to an opening 408 to adjust the height of the drawbar 302. An optional bushing can be provided here. Fastening means 409, in particular through-holes which can be designed as elongated slots, are provided laterally for attaching mudguards.

[0085] The Fig. Figure 10 shows an alternative vehicle 500, which has a base frame 502. The vehicle 500 is also designed as a trailer, specifically a center-axle trailer. It has a drawbar 130. Alternatively, a drawbar 230 could be used. A frame structure 10 can be placed on the base frame 502 and locked to it. The locking mechanism can be a container lock. A spare wheel 504 is mounted on the base frame 502. A foldable underride guard 506 is provided at the rear. The base frame 502 can be lowered at the rear, i.e., brought close to the ground. This eliminates the need for a platform.

[0086] A toolbox 508 is arranged on the base frame 502. A side underride guard 510 is also provided. A bracket 512, for example in the form of an opening or a thread, can serve to attach an air spring valve (for example, the air spring valve 690 described later, which can serve as a position sensor, in particular for detecting spring travel), a position sensor, or a brake force regulator, in particular a valve thereof. In the illustrated embodiment, the bracket 512 is arranged on a crossmember between the wheels.

[0087] The Fig. Figure 11a shows a schematic diagram of different signal and pressure lines of a vehicle, for example one of the vehicles described above, in particular trailers.

[0088] The central element is a modulator 670, which, based on a braking command issued by a brake 672, actuates brake cylinders, in particular diaphragm cylinders 674 and 676 with associated spring accumulators. The braking force is adjusted by the modulator 670 depending on the detected load of the trailer. For this purpose, a load sensor 678 can be provided, which is connected to the modulator 670 via a signal. The brake 672 is connected to the modulator 670 via a control line 672a. A supply line 672b is connected to a reservoir 675 via a valve assembly 673. The valve assembly 673 is designed as a TRCM valve and has an actuating element for a handbrake and an actuating element for releasing the service brake. The TRCM valve can serve as a trailer brake valve.

[0089] The trailer can also be equipped with tire pressure sensors 680, the signals of which can be transmitted to a towing vehicle via an interface 682 using the modulator 670 and, in particular, a receiver board located therein. The modulator 670 can receive the signals from the tire pressure sensors 680 directly or via an external RF receiver 681. Alternatively, the signals can be read out via an interface 685.

[0090] A directional control valve, in particular a 2 / 3-way valve, can be used to appropriately control the brake cylinders when lowering (especially lowering the rear of a trailer) so that no tension occurs on the axle assembly.

[0091] Furthermore, an ABS sensor 684 may be provided, the signals of which can be taken into account when controlling the brake cylinders.

[0092] In the case of an air suspension unit, each wheel can be assigned an air bellows 686, which can be controlled via a lifting / lowering valve 688 and an upstream air spring valve 690.

[0093] Fig. Figure 11b shows a schematic diagram of various signal and pressure lines of a vehicle, in particular a trailer without air springs. Components of this diagram can be used in a previously described vehicle, especially a trailer with a parabolic spring assembly or leaf spring assembly. Components that correspond to those of Fig. 11a corresponds to the same reference numbers.

[0094] A load-dependent brake force regulator 687 with an integrated load-dependent brake valve is provided here. The brake valve can also be considered a load sensor. The valve assembly 673 has only one actuating element for releasing the service brake.

[0095] Fig. Figure 11c shows a schematic diagram of various signal and pressure lines of a vehicle, in particular a trailer without air springs. Components of this diagram can be used in a previously described vehicle, especially a trailer with a parabolic spring assembly or leaf spring assembly. Components that correspond to those of Fig. 11a corresponds to the same reference numbers.

[0096] Here, a path sensor is shown as an additional or alternative load sensor 679.

Claims

[1] Frame construction (10) for a vehicle (100, 200, 300, 500) wherein the frame construction (10) comprises two longitudinal frame elements (12, 14) and two transverse frame elements (16, 18) which define a receiving space (20) in which an oil pan (104) is arranged. [2] Frame construction according to claim 1, characterized by , that the oil pan (104) is bolted or welded in the area of ​​the receiving space (20). [3] Frame construction according to one of the preceding claims, characterized by , that the oil pan (104) is angled in a side wall area. [4] Frame construction according to one of the preceding claims, characterized by that the oil pan (104) has a tank holder (114). [5] Frame construction according to one of the preceding claims, characterized by, that at least one longitudinal frame element (12, 14), transverse frame element (16, 18) and / or the oil pan (104) itself has fastening means (22, 24, 26, 28), in particular threads, for fastening one or more motors or generators. [6] Frame construction according to one of the preceding claims, characterized by , that beams, in particular crossbeams (34) and / or longitudinal beams (30, 30.1, 32), are provided under the oil pan (104) for supporting and / or welding the oil pan (104). [7] Frame construction according to one of the preceding claims, characterized by , that the beams, in particular longitudinal beams (30.1), are cranked. [8] Frame construction according to one of the preceding claims, characterized by , that the oil pan (104) projects section by section between two adjacent supports, in particular longitudinal supports (30.1). [9] Frame construction according to one of the preceding claims, characterized by, that a radiator mounting arrangement (44) is provided. [10] Frame construction according to one of the preceding claims, characterized by , that an air supply arrangement (48) which can be closed, in particular by a grille, is provided. [11] Frame construction according to one of the preceding claims, characterized by , that an end profile (122) is attached to opposite sides of the frame construction (10). [12] Frame construction according to claim 11, characterized by , that the end profile (122) is connected to crossbeams (34) and / or cross frame elements (16, 18). [13] Frame construction according to claim 12, characterized by , that the crossbeams (34) and / or cross frame elements (16, 18) and / or the end profiles (122) include warp compensation elements in the area of ​​the connection points of end profile (122) and crossbeams (34) and / or cross frame elements (16, 18). [14] Frame construction according to one of the preceding claims, characterized by , that the frame construction (10) has a cable guide (124). [15] Frame construction according to one of the preceding claims, characterized by , that the frame structure (10) has a bracket (60) for an underride guard. [16] Frame construction according to one of the preceding claims, characterized by , that this includes a control cabinet mounting arrangement (50). [17] Frame construction according to one of the preceding claims, characterized by that it has a hook arm attachment and / or a roller. [18] Vehicle (100, 200, 300, 500), in particular trailer, with a frame construction (10) according to one of the preceding claims. [19] Vehicle according to any one of the preceding claims, characterized by , that the vehicle (100, 200, 300, 500) includes a toolbox holder (204). [20] Vehicle according to claim 19, characterized by , that it is designed as a central axle trailer, in particular a tandem trailer, or a two-axle trailer with turntable (400). [21] Vehicle according to one of the preceding claims 19 or 20, characterized by , that it has a particularly foldable platform (316) at the rear. [22] Vehicle according to any one of the preceding claims 19 to 21, characterized by , that an interchangeable axle block (308, 310) is provided to adapt to different sized wheels. [23] Vehicle according to any one of the preceding claims 19 to 22, characterized by , that the frame structure (10) is attached to a base frame (502) of the vehicle (500) via a container locking mechanism. [24] Vehicle according to any one of the preceding claims 19 to 23, characterized by , that the vehicle (100, 200, 500) can be lowered at the rear.

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