Tipping vehicle and tipping bridge

Abstract

Tipping bridge for a tipping vehicle (1) with a chassis (2) and a tipping bearing (11), wherein the tipping bridge (4) has a tipping bridge frame (34) with outer longitudinal and transverse beams (35, 36) which are designed as hollow box profiles with a circumferential shell, wherein the tipping bridge frame (34) has at least one inner longitudinal beam (40), characterized in that the inner longitudinal beam (40) has a conical shape in plan view, which widens towards the rear.

Description

[0001] The invention relates to a tipper vehicle and a tipper bridge with the features in the preamble of the main claim.

[0002] From EP 0 952 069 A2, a tipping bridge with a tipping bridge frame and a floor is known, wherein the tipping bridge frame has longitudinal and transverse beams welded together, which are designed as downwardly open U-profiles. The outer longitudinal and transverse beams are set inwards from the edge of the bridge and each has outwards projecting brackets which are firmly connected to an L-shaped angled edge of the floor.

[0003] DE 102 01 625 A1 discloses a tilting bridge with an internal support structure consisting of longitudinal and transverse beams and an external, skirt-like outer frame. The longitudinal and transverse beams can be designed as U-shaped or closed box sections.

[0004] DE 200 16 474 U1 deals with a kit group for the production of tilting bridges, using L- or Z-shaped angled support profiles.

[0005] US 2009 / 0297305A1 concerns a tipper body whose supporting frame is formed by C-shaped profiles.

[0006] A tipper body with a heated tipper floor is known from AU 31 001 B1.

[0007] US 4 138 158 A shows a tipper body that has parallel longitudinal rectangular tubes on the underside and many trough-shaped transverse parts resting on them.

[0008] US 2012 / 0 280 557 A1 concerns a tipper trailer with a first, second, and third frame. The first frame includes one or more sets of wheels. The second frame is attached to the towing vehicle and can be moved horizontally relative to the first frame by the towing vehicle's forward or backward movement. The third frame forms a support frame for the trailer's loading platform.

[0009] US Patent 4,418,959 A describes a tipper trailer in which the drawbar is positioned so that the load is borne by the trailer and not by the towing vehicle. Furthermore, the trailer frame is designed so that the pivoting end of the trailer is supported in such a way that the pivoting end of the trailer bed does not lower below the platform supporting the trailer bed. CN 2,030,783,844 U relates to a U-shaped bulk container for a mining dump truck, comprising a body in which the U-shaped bottom plate of the body is bent and formed from two side-wall steel plates and a bottom steel plate, welded and machined into an integrated structure.US 3 804 464 A shows a truck body structure with a tailgate structure comprising a lightweight floor structure with several crossbeams spaced at predetermined intervals to properly support the floor, and a body mounted on top of it which forms a relatively stable structure through its specially designed side walls.

[0010] The object of the present invention is to demonstrate a further improved tilting bridge.

[0011] The invention solves this problem with the features in the main claim.

[0012] The tipping platform for a tipper truck offers several advantages. Firstly, the tipping platform frame, with its external longitudinal and transverse beams designed as hollow box sections with a circumferential shell, possesses exceptional strength and rigidity. It can also withstand very high loads. Furthermore, the design of the tipping platform frame and the floor mounted and attached to it is simplified.

[0013] The tipping bridge frame has at least one inner longitudinal beam, the inner longitudinal beam having a conical shape in plan view, which widens towards the rear.

[0014] The longitudinal beams of the tipping bridge frame can be positioned far to the outside, forming the edge of the tipping bridge. In a bridge structure formed by corner posts and side walls, the corner posts, as well as the supports for the side walls and their bearings, can be attached to a longitudinal beam on the outside, for example, by welding. This provides a particularly stable connection capable of bearing even high bridge loads. The tipping bearings, or their bridge-side bearing components, can also be attached to the longitudinal beams. This offers a particularly stable bearing and support option for rearward and lateral tipping axes and movements.

[0015] The hollow box sections can be formed in any desired way. In the preferred embodiment, they are formed by a trough-shaped support profile and a base of the tilting bridge that covers the support opening. This is a particularly stable, low-complexity, and cost-effective design.

[0016] The outer longitudinal and transverse beams of the tipping bridge frame can form a self-supporting outer frame, preferably with a fully enclosed rectangular shape. The outer longitudinal beams can be transversely connected by outer crossbeams. The outer crossbeams can have the same structural design, in particular with a trough-shaped beam profile, as the outer longitudinal beams.

[0017] The tipping bridge frame has at least one internal longitudinal beam and / or may have at least one internal crossbeam. These internal beams can supplement the aforementioned outer frame and provide additional internal bracing. They can also accommodate the connection point for a tipping mechanism.

[0018] Furthermore, it is advantageous if an inner longitudinal beam has a conical shape in plan view, preferably widening towards the rear. This is beneficial for stability. The number and arrangement of inner longitudinal beams can also vary along the length of the tipper body. In the rear area, several, particularly two, inner longitudinal beams can be arranged, providing locally increased stiffness. This is especially advantageous during rear tipping.

[0019] Furthermore, it is advantageous if the chassis of a tipper vehicle, particularly a tipper trailer, has a supporting frame with longitudinal and transverse beams and a support plate inserted in the rear frame opening area. This significantly increases the chassis rigidity, which is particularly beneficial during rear tipping. It is also advantageous if the longitudinal beams have a tapered stiffening element at the rear end. This also contributes to increasing the chassis strength in the rear area. The chassis design with a support plate and / or tapered stiffening element is of independent inventive significance. It can be used in conjunction with the aforementioned tipper body design or with any other, including conventional, tipper bodies.

[0020] For a tipper trailer, it is advantageous if the towing element is designed as a drawbar, and in particular as a tubular drawbar with a hollow drawbar beam. The drawbar design described here has the advantage that the drawbar can be tipped over. For this purpose, a sloping roof shape on the top of the drawbar beam is beneficial. This can be, in particular, a saddle shape with chamfers on both sides. The load of the towing vehicle can thus be tipped over the drawbar in the coupled position without damage. This is particularly advantageous when tipping while the trailer is in motion and when distributing the tipped bulk material over a certain distance.

[0021] For the drawbar to be able to withstand being tipped over, it is also advantageous if the drawbar beam has a sleeve on its upper side. The sleeve can also completely surround the drawbar beam on the sides. It can protect the drawbar beam and provide additional stiffening. For this purpose, it is beneficial if the sleeve is positioned at the point where the drawbar beam connects to the chassis.

[0022] The hollow drawbar is preferably formed from several, in particular two, interconnected, angled profiles. The profiles can have an approximate C-shape in cross-section. It is particularly advantageous if the drawbar profiles have a sloping top. For connecting the profiles or drawbar profiles, an upper connection point with mutual interlocking and, optionally, a lower connection point with webs of the profiles angled towards the drawbar side and lying flush against each other can be provided. The rigid connection can be formed in any suitable manner, e.g., by welding. The interlocking and the web arrangement ensure particularly high strength at the respective connection point. The design of the drawbar also has independent inventive significance.They can be used together with the aforementioned tipper body and chassis design or with any other, including conventional, tipper bodies and / or chassis.

[0023] Further advantageous embodiments of the invention are specified in the dependent claims.

[0024] Furthermore, the following additional embodiments of the claimed tipping bridge and the claimed tipping vehicle are advantageous: - The tipping bridge has corner posts and movable side walls, in particular at least one swinging side wall. - In the case of a tipper vehicle with a drawbar, the sleeve surrounds the drawbar (42) laterally. - The sleeve of a drawbar is located at the connection area of ​​the drawbar to the chassis. - The profiles of a hollow drawbar each have a roof slope at the top. - The profiles of a hollow drawbar have a connection point at the lower area with webs, each angled towards the inside of the drawbar and lying flat against each other.

[0025] The invention is illustrated in the drawings in an exemplary and schematic manner. Specifically, the drawings show: Fig. 1, Fig. 2, Fig. 3 to Fig. 4: a tipper vehicle with a chassis including a drawbar and a tipper body with a tipper body frame in various views and operating positions, Fig. 5: an underside view of the tilting bridge, Fig. 6: a broken perspective rear view of the tilting bridge, Fig. 7: Broken-down and enlarged detail rear view of the tipping bridge, Fig. 8: A perspective view of the chassis and drawbar from the rear, Fig. 9: a top view of the chassis and drawbar, Fig. 10: A perspective view of the chassis and drawbar from the front, Fig. 11: a broken perspective front view of a drawbar, Fig. 12 and Fig. 13: Perspective views of a variant of the tilting bridge and Fig. 14: A broken and enlarged detail rear view of the tipper bridge variant of Fig. 12 and Fig. 13.

[0026] The invention relates to a tipping platform (4) for a tipping vehicle (1) and a tipping vehicle (1), in particular a tipping trailer, with such a tipping platform (4). The invention further relates to a chassis (2) and a drawbar (3) of a tipping vehicle (1) and the tipping vehicle (1) equipped therewith, in particular a tipping trailer.

[0027] The tipper vehicle (1) can be designed in any suitable manner. It can be configured as a motor vehicle or as a trailer. In the illustrated embodiments, the preferred embodiment is shown as a tipper trailer (1), in particular as a three-way tipper. Other embodiments as a motor vehicle can be adapted accordingly. Fig. 1 and Fig. Figures 2 show the tipper vehicle (1) in driving position with the tipper body (4) lowered and, if applicable, locked. Fig. 3 and Fig. Four different tilt positions are shown.

[0028] The tipper vehicle (1) has a chassis (2) or a running gear with one or more axles and wheels. The tipper trailer (1) shown also has a towing device (3) at the front, which is designed, for example, as a rigid drawbar, in particular as a central tubular drawbar, with a towing eye or the like. Furthermore, a braking system with wheel brakes is provided. The chassis (2) may also have a footrest. In other trailer variants, the towing device (3) may have a semi-trailer coupling with a kingpin, a pivoting drawbar, or the like.

[0029] The tipper vehicle (1) has a tipping bridge (4) which according to Fig. 1, Fig. 2, Fig. 3 to Fig. 4 is pivotably mounted on the chassis (2) about one or more tipping axes (11) or tipping bearings and is actuated by a tipping device (10). The tipping device (10) has, for example, an extendable lifting ram which is pivotally mounted on the chassis (2) and on the tipping bridge (4) and which tilts the tipping bridge (4) out of the position shown in Fig. 2 shown lowering and driving positions into the in Fig. 3 and Fig. The tilting mechanism (10) pivots in the rearward and lateral tilting positions shown in Figure 4. The lifting cylinder is designed, for example, as a hydraulic telescopic cylinder. The tilting mechanism (10) comprises a drive unit with power and operating fluid supply as well as a control and operating unit. For the sake of clarity, only the lateral control and operating unit of the tilting mechanism (10) is shown in the drawings, and the lifting cylinder is symbolized by an arrow.

[0030] Fig. Figures 4 to 7 and 12 to 14 show different variants of a tipping bridge (4).

[0031] The tipping bridge (4) in each variant has a tipping bridge frame (34) with a floor (5) resting on and attached to it. The tipping bridge (4) has a tipping superstructure, which can be designed as desired, e.g., as a tipping skip with fixed side and end walls. In the illustrated embodiments, the tipping superstructure and corner posts (6) or corner stanchions at the corners of the rectangular tipping bridge frame (34) have upright corner posts (6) or corner stakes, between which side walls (7, 8) are arranged. These side walls are at least partially movable, in particular pivotable, and can be locked to the corner posts (6) with fasteners (33) or may also be pivotally mounted.

[0032] At least one side wall, in particular the rear wall, is designed as a hinged side wall with a high-lying pendulum bearing (9). The one shown in the arrow in Fig. The front wall, located at the front in the direction of travel or towing (symbolized in point 1), can be of solid construction. The side walls (7) are, for example, pivotable on two axes, pivoting about an upper pendulum bearing (9) and folding down about a lower pivot bearing. The side walls or tipper body walls can be designed and made of any material. Preferably, they are made of metal, in particular steel or a light metal alloy.

[0033] In the illustrated embodiments, a locking device (12) is provided and assigned to the rear drop-side tailgate (8). The locking device (12) has an actuating device (13) with a movable locking element (16) that engages the side edge of the drop-side tailgate (8). It engages, for example, a laterally projecting wall-side locking element (17), which is designed as a counter-support or crossbeam. The actuating device (13) is driven by the tipping platform (4) through its tipping movement. A central locking mechanism (28) or a locking device (12) can be provided for one or both side drop-side tailgates (7).

[0034] The tipping bridge frame (34) has, in each variant, external longitudinal and transverse beams (35, 36). The beams (35, 36) are designed as hollow box sections with a circumferential shell. They are therefore essentially closed in the shell area and on the sides therein. To reduce weight, the beam shell can have local and discrete perforations in a limited area.

[0035] In the illustrated and preferred embodiments, both the longitudinal beams (35) and the crossbeams (36) have a hollow box shape. In another embodiment, only the outer longitudinal beams (35) or the outer crossbeams (36) may have such a hollow box shape.

[0036] The hollow box sections can be formed in different ways. In the illustrated and preferred embodiments, the outer longitudinal and / or transverse beams (35, 36) each have a trough-like support profile (37) which is rigidly connected at its free longitudinal edges (38) to the floor (5) of the tilting bridge (4) covering the beam opening. The relevant floor area forms part of the hollow box section and closes the upward-facing beam opening or trough opening. The trough-like support profiles (37) are arranged with their bulge facing downwards, with the beam opening directed upwards.

[0037] The support profile (37) can have any suitable trough shape. In the first variant of Fig. 4, Fig. 5, Fig. 6 to Fig. 7 has a rounded or beveled omega shape in cross-section. The upright profile webs are each inclined outwards. The free longitudinal edges (38) on the upright profile webs are designed as laterally beveled flanges and lie flush against the underside of the base (5). The longitudinal edges (38) or edge flanges can be fastened to the base (5) in any suitable manner, e.g., by welding or brazing, or alternatively by riveting, screwing, or the like. Fig. 6 and Fig. Figure 7 illustrates the design and arrangement of the support profiles to form longitudinal beams (35).

[0038] In the second version of Fig. 12, Fig. 13 to Fig. In section 14, the support profile (37) has an approximate omega shape in cross-section. The laterally angled edge flange is missing on the upright profile web facing the inside of the frame. The base (5) rests on the free end of the profile web or on the straight, unangled longitudinal edge (38). The other upright profile web facing the outside of the frame may have the flange-like angled longitudinal edge (38). Alternatively, the edge flange may be missing on both upright profile webs or longitudinal edges (38).

[0039] One or more stiffening plates (55) can be attached in the profile opening of the support profile (37). These can have a trapezoidal shape.

[0040] The longitudinal and transverse beams (35, 36) and the base (5) can each be made of any suitable material in the various versions. Preferably, they are made of metal, in particular steel or a light metal alloy.

[0041] In preferred embodiments, the trough shape of the support profiles (37) of the outer longitudinal and transverse beams (35,36) has a substantially flat bottom and the side walls or upright profile webs adjoining it on both sides and directed obliquely outwards.

[0042] In the first variant of Fig. 4, Fig. 5, Fig. 6 to Fig. 7 The support profiles (37) of the outer crossbeams (36) also have an omega shape in cross-section with flange-like, outwardly angled longitudinal edges (38). In the second variant of Fig. 12, Fig. 13 to Fig. 14 the crossbeams (36) have only one or no flange-like outwardly angled longitudinal edge (38).

[0043] On the outside of the flat base of the support profiles (37) of the longitudinal beams (35) the tilting bearings (11) or the bridge-side tilting bearing components, e.g. in the form of bearing bushings, are arranged. They interact, e.g., with bearing balls at the corner areas of the chassis (2), in particular at the outer crossbeams (51) located there.

[0044] How Fig. 5 and Fig. 13 each in the bottom view and Fig. 6 and Fig. 7 as well Fig. As can be seen in perspective rear views 14, the outer longitudinal beams (35) are arranged at the longitudinal edges of the tilting bridge (4). They thus form the outer edge of the tilting bridge frame (34).

[0045] The outer crossbeams (36) are arranged at the front and rear of the tipping bridge frame (34) and between the longitudinal beams (35). They can be spaced and set back longitudinally from the transverse edges of the tipping bridge frame (34). The ends of the longitudinal beams (35) thus project axially beyond the outer crossbeam (36).

[0046] In this rear-facing area between the longitudinal and transverse beams (35, 36), the actuating device (13) of the locking device (12) can be arranged. The actuating device (13) has a release device (14) that interacts with the adjacent transverse beam (36), a return spring (18), and a transmission device (15). The transmission device (15) is actuated by the release device (14) against the, for example, spring-loaded return spring (18) and transmits the derived drive movement to the locking element (16) via a rotary rod and crank mechanism as well as a coupled connecting rod.

[0047] The crossbeams (36), in particular their support profiles (37), are butt-jointed to the longitudinal beams (35), in particular their support profiles (37), in the various configurations and attached in a suitable manner, e.g. by welding. The end faces of the crossbeams (36), in particular their support profiles (37), may be adapted accordingly in their contour.

[0048] The longitudinal edges (38) or the beveled and outwardly directed flanges of the longitudinal and transverse beams (35, 36) can be in the first variant of Fig. 4, Fig. 5, Fig. 6 to Fig. 7 lie at the same height. Notches may be provided for this purpose in the connection or intersection area of ​​the longitudinal and transverse beams (35, 36). In the second variant of Fig. 12, Fig. 13 to Fig. 14 the flange-like angled longitudinal edges (38) and the notches are omitted.

[0049] The outer longitudinal and transverse beams (35, 36), in particular their support profiles (37), are rigidly connected to one another to form a self-supporting outer frame. The outer frame has a substantially rectangular basic shape, in particular an H-shape.

[0050] The tipping bridge frame (34) has, in each variant, at least one inner longitudinal beam (40) and / or at least one inner cross beam (41). These are arranged in the inner opening of the outer frame and provide additional stiffening of the outer frame and the entire tipping bridge frame (34). Fig. 5 and Fig. Figure 13 shows this arrangement.

[0051] In the illustrated embodiments, two parallel inner crossbeams (41) are arranged in the central frame area. These can have the same design as hollow box sections as the outer crossbeams (36) and include trough-shaped support profiles (37). These are also rigidly connected at their free longitudinal edges (38) to the base (5) covering the support opening, in particular by welding. In the illustrated and preferred embodiments, the longitudinal and crossbeams (35, 36, 41) can have a similar design. The inner crossbeams (41) can be connected to the outer longitudinal beams (35) in the same way as the crossbeams (36).

[0052] Between the inner crossbeams (41) there may be a connection point for the tilting device (10), in particular the piston bearing of the extendable lifting piston.

[0053] Between the inner crossbeams (41) and the adjacent outer crossbeams (36), one or more inner longitudinal beams (40) are arranged and fastened in each variant. The inner longitudinal beams (40) preferably have a conical shape in plan view, widening towards the rear. The inner longitudinal beams (40) also preferably have trough-shaped profiles, which may, for example, have a U-shaped cross-section. The inner longitudinal beams (40) are firmly connected to the base (5) at their free edges. They are butt-jointed at their ends to the respective crossbeams (36, 41) and firmly connected in a suitable manner, for example, by welding.

[0054] How Fig. 5 and Fig. As illustrated in Figure 13, two inner longitudinal beams (40) can be arranged parallel and at a lateral distance from the center in the rear area. In the front tipping bridge area, a single inner longitudinal beam (40) is arranged centrally.

[0055] How Fig. 7 and Fig. As illustrated in Figure 14, the corner posts (6) are attached at their lower end to an external longitudinal beam (35), in particular to its support profile (37), by means of a connection (39), e.g., in the form of parallel web plates. The attachment can be carried out in any suitable manner, e.g., by welding. The base (5), preferably designed as a flat plate, terminates at the edge of the longitudinal beams (35) and in front of the corner posts (6).

[0056] The bearing elements for the lower pivot bearing of the side wall panels (7) can also be arranged and attached to the outer longitudinal beams (35). The bearing is formed by locking bolts (31) and locking lugs (30).

[0057] The in Fig. 4 and Fig. The central locking mechanism (28) shown in Figure 7 can be present in both variants. It has a shaft (29) on the longitudinal edge of the tipping bridge, which is supported and fastened to the adjacent longitudinal beam (35) by means of angled brackets. Locking lugs (30) are arranged at intervals on the shaft and engage with locking bolts (31) on retaining arms that are attached to the lower edge of the side wall (7). The shaft (29) is connected at its front end to a lever (32) that can be operated manually or by a drive mechanism. When the lever is operated, the shaft (29) rotates about its longitudinal axis, whereby, depending on the direction of rotation, the locking lugs (30) can be engaged or disengaged from the locking bolts (31). In the engaged position, the locking lugs (30) and the locking bolts (31) together form the lower pivot bearing of the side wall (7).

[0058] Fig. 8, Fig. 9, Fig. 10 to Fig. Figure 11 illustrates a design of the chassis (2) and a drawbar (3), each of which has independent inventive significance and can be used together with the tipping bridge (4) described above or with another, in particular conventional, tipping bridge.

[0059] Fig. 8, Fig. 9 to Fig. Figure 10 shows the chassis (2) from different perspectives. The chassis (2) has a support frame (49) with longitudinal and transverse beams (50, 51, 52) which are connected to each other. The support frame (49) is essentially rectangular. It can be designed as a ladder frame. The tilting bearings (11) or the chassis-side bearing components can be arranged on the outermost transverse beams (51) in the direction of travel or longitudinally. These transverse beams (51) can project outwards beyond the longitudinal beams (50).

[0060] The longitudinal beams (50) have top and bottom chords and, for example, an I-shape in cross-section. Internal crossbeams (52), designed, for example, as hollow box girders, are arranged and fastened between the longitudinal beams (50). They can accommodate and support one or more axles of the chassis.

[0061] A support plate (54) is installed in the rear frame opening area of ​​the support frame (49). It can have a flat or uneven shape. In the illustrated and preferred embodiment, it is designed as a corrugated sheet with profiles running transversely to the direction of travel or longitudinally. The support plate (54) is firmly connected to the rear areas, in particular the upright webs, of the longitudinal beams (50) and to the rear outer cross member (51), e.g. by welding.

[0062] The longitudinal beams (50) also have a stiffener (53) at their rear end, which widens conically towards the rear. The stiffener (53) is, for example, designed as an essentially triangular stiffening plate, which abuts the rear crossbeams (51) at its rear base and is welded to them. It can rest on the upper flanges of the longitudinal beams (50) or be clipped into them. In addition, downward-projecting stiffening webs can be arranged on the outer edges of the stiffening plates. The stiffeners (53) can also be rigidly connected to the support plate (54).

[0063] As mentioned at the outset, the tipping vehicle (1) is preferably designed as a tipping trailer and has a towing element (3), which is preferably designed as a rigid drawbar, in particular as a tubular drawbar. The tubular drawbar (3) has a high drawbar arm (42) which carries a support plate with the towing eye at its front end and which projects into the chassis (2) at its rear. The drawbar arm (52) extends through the front outer cross member (51) and is received in a recess on the subsequent inner cross member (52). Fig. 8 and Fig. Figure 9 shows this arrangement.

[0064] The drawbar (3) is designed as a tipper-type drawbar. In the case of a tipper truck, the tipping platform of the towing vehicle can be tilted backwards with the tipper trailer (1) coupled, and the load can be tipped over the drawbar (3).

[0065] The drawbar (42) has a sloping roof shape on its upper side. This can be, for example, according to Fig. The drawbar (42) is saddle-shaped and has two opposing roof slopes. In the lower adjoining area, the drawbar has a substantially rectangular shape. The sloping roof shape is advantageous for tipping and allows the tipped load to slide off without leaving any residue. The roof shape also increases the rigidity of the roof beam (42). Alternatively, it can be designed as a single-sloping shed roof.

[0066] The drawbar (42) has a sleeve (48) at least on one side, particularly on its upper side. Preferably, the sleeve (48) is also arranged on other areas of the drawbar (42), particularly on its underside. In the illustrated embodiments, the one-piece or split sleeve (48) surrounds the drawbar (42) laterally. The drawbar (42) and the sleeve (48) are preferably made of metal, particularly steel. They are preferably designed as bent sheet metal parts.

[0067] The cuff (48) can be used according to Fig. 8, Fig. 9 to Fig. 10. The sleeve (48) covers or surrounds only a portion of the drawbar (42) along its length. It is preferably located at the connection point of the drawbar (42) to the chassis (2). It can extend forward from the front crossmember (51) or front end of the chassis a short distance to the drawbar eye and also a short distance to the rear to the attachment point of the drawbar (42) to the chassis (2), in particular to the crossmember (52).

[0068] The sleeve (48) stiffens the drawbar (42) in this particularly stressed attachment area. It also extends into the tipping area of ​​a tipper body on the tractor side and forms a protective cover for the drawbar (42) against the tipped load from the tractor. The sleeve (48) can have a lateral division at the front according to Fig. 8 and Fig. 10.

[0069] How Fig.As illustrated in Figure 11, the hollow drawbar (42) has two interconnected, angled profiles (43, 44). The number of profiles or drawbar profiles (43, 44) can also be greater than two. The drawbar profiles (43, 44) are, for example, made of thin-walled and bent sheet metal profiles, especially steel.

[0070] The drawbar profiles (43, 44) each have a roof slope (46) at their upper end. In the illustrated embodiments, the roof slopes (46) face each other. Furthermore, the drawbar profiles (43, 44) have a connection point with mutual interlocking teeth (45) at their upper end. The drawbar profiles 25 (43, 44) are notched at their upper free edge in a tine-like manner. This profile edge is also bent. The tines of the drawbar profiles (43, 44) interlock to form the toothing (45), with the bent profile edge extending to below the roof slope (46) of the opposite drawbar profile.

[0071] The drawbar profiles (43, 44) have a connection point at their lower end with webs (47) which are angled towards the hollow inner side and lie flat against each other. The drawbar profiles (43, 44) have a cross-section that is at least approximately C-shaped with the aforementioned roof slope (46).

[0072] The drawbar profiles (43, 44) can be firmly joined to each other at the upper and lower connection points of the toothing (45) and the lugs (47) in any suitable manner, e.g. by welding or soldering. The toothing (45) and the adjacent lugs (47) also provide structural stiffening at the respective connection point.

[0073] The sleeve (48) and the design of the drawbar (42) each have independent inventive significance. They can be used together or independently of each other. The sleeve (48) can be omitted. Alternatively, it can also be used with any other, and in particular conventional, drawbar. The sleeve (48) and / or the drawbar (42) in the design according to the invention can also be used with the aforementioned tipper body and chassis design or with other conventional tipper bodies and / or chassis.

[0074] Various modifications of the illustrated and described embodiments are possible. In particular, the features of the aforementioned embodiments and the mentioned variations can be combined and exchanged as desired.

[0075] The longitudinal and transverse beams (35, 36) of the tipping bridge frame (34) can have laterally closed beam profiles with, for example, a prismatic, in particular rectangular, cross-sectional shape. The floor (5) can be placed on these already closed hollow profiles and fastened.

[0076] The drawbar (3) can be designed and arranged differently. In particular, the drawbar arm (42) can have a different shape and design. For example, it can be round, especially circular or oval. It can also be made in one piece. The sleeve (48) can be omitted as required or designed differently. REFERENCE MARK LIST 1 tipper truck, tipper trailer 2 Chassis 3. Traction elements, drawbar 4 tipping bridge 5 Floor 6 corner posts, stakes 7 Sideboard, hinged sideboard, side wall 8 side wall, pendulum side wall, rear wall 9 pendulum bearings 10 11 Tilting device tilting axis 12 locking mechanism 13 Actuating device 14 Triggering device 15 Transmission device 16 locking elements, hooks 17 bar element, counter support, crossbeam 18 spring return spring 28 Central locking 29th wave 30 latch nose 31 locking bolts 32 levers 33 Closure 34 tipper frames 35 Outer longitudinal beams 36 crossbeams outside 37 Support profile 38 Longitudinal edge 39 Corner post connection 40 longitudinal beams inside 41 crossbeams inside 42 Drawbar 43 Profile, spar profile 44 Profile, spar profile 45 toothing 46 Sloping roof 47 Bridge 48 cuff 49 Support frames, outer frames of chassis 50 outer longitudinal beams 51 crossbeams outside 52 crossbeams inside 53 Stiffening 54 Support plate, corrugated sheet 55 Stiffening plate

Claims

[1] Tipping bridge for a tipper vehicle (1) with a chassis (2) and a tipping bearing (11), wherein the tipping bridge (4) has a tipping bridge frame (34) with outer longitudinal and transverse beams (35, 36) designed as hollow box sections with a circumferential shell, wherein the tipping bridge frame (34) has at least one inner longitudinal beam (40), characterized by , that the inner longitudinal member (40) has a conical shape in plan view, which widens towards the rear. [2] Tilting bridge according to claim 1, characterized by , that the longitudinal and transverse beams (35,36) have a trough-like beam profile (37) which is firmly connected at its free longitudinal edges (38) to a floor (5) of the tilting bridge (4) covering the beam opening. [3] Tilting bridge according to claim 1 or 2, characterized by , that the support profile (37) has an essentially omega shape in cross-section. [4] Tilting bridge according to claim 1, 2 or 3, characterized by, that a tilting bearing (11) of the tilting bridge (4) is attached to a longitudinal beam (35). [5] Tilting bridge according to one of the preceding claims, characterized by , that a connection (39) for a corner post (6) of the tipping bridge (4) is attached to a longitudinal beam (35), in particular to a beam profile (37), on the outside. [6] Tilting bridge according to one of the preceding claims, characterized by , that the outer longitudinal and transverse beams (35,36), in particular their support profiles (37), are firmly connected to each other to form a self-supporting outer frame. [7] Tilting bridge according to one of the preceding claims, characterized by that the tipping bridge frame (34) has at least one internal crossbeam (41). [8] Tipper vehicle with a tipping platform (4) and a chassis (2), characterized by , that the tipping bridge (4) is designed according to at least one of claims 1 to 7. [9] Tipping vehicle according to claim 8, characterized by, that the chassis (2) has a support frame (49) with longitudinal and transverse beams (50,51,52) and with a support plate (54) inserted in the rear frame opening area. [10] Tipper vehicle according to claim 8 or 9, characterized by , that the longitudinal members (50) have a conically widening stiffening (53) at the rear end. [11] Tipper vehicle according to one of claims 8, 9 or 10, characterized by , that the tipping vehicle (1) is designed as a tipping trailer and has a towing device (3), in particular a drawbar. [12] Tipper vehicle according to claim 11, characterized by , that the drawbar (3) is designed as a tubular drawbar with a hollow drawbar beam (42) which preferably has a sloping roof shape on the upper side. [13] Tipper vehicle according to claim 11 or 12, characterized by , that the drawbar (42) has a cuff (48) at least on the upper side. [14] Tipper vehicle according to claim 12 or 13, characterized by , that the hollow drawbar (42) is formed by several, in particular two, connected, angled profiles (43,44). [15] Tipper vehicle according to claim 14, characterized by that the profiles (43,44) of the drawbar (42) have a connection point with mutual interlocking (45) at the upper area, wherein preferably the profiles (43,44) have a connection point with webs (47) at the lower area which are angled towards the inside of the drawbar and lie flat against each other.

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