Finisher

Abstract

The invention relates to a paver comprising a frame (2) carried by a rolling mechanism (1), at least one primary drive source, a hydraulic system, a beam mounted in an articulated manner by means of traction arms and an asphalt conveying assembly comprising a storage hopper, a longitudinal conveying device conveying from the storage hopper to a transverse distribution screw and a set of channel plates arranged vertically in front of the transverse distribution screw in the direction of paving, which set of channel plates has a channel plate base portion (9) of a transverse distribution channel created in front of a beam base body of the beam, the set of channel plates having channel plates (12,13) which can be folded at least in certain parts as an extension of the channel sheet base (9) laterally relative to the beam base body and relative to a transverse position relative to the coating laying direction, which channel sheets are, by means of hinges, rotationally articulated on a load-bearing structure in the vicinity of the channel sheet base (9) about at least one pivot axis as flap-shaped channel sheets (12, 13) and are fixed by a closing element so as to prevent unintentional pivoting. Figure for the abstract: Figure 5,

Description

Title of the invention: Finisher technical field

[0001] The invention relates to a finisher according to the preamble of claim 1. Prior art

[0002] A paver is known from document DE 200 01 246 U1, comprising a frame with a rolling mechanism, the rear wall of which has a height-adjustable support structure for a distribution screw. Furthermore, channel sheets are positioned between the distribution screw and the rolling mechanism. To allow for quick height adjustments of the distribution screw without lengthy and laborious conversion work on the channel sheets and / or auxiliary support devices, the channel sheets are designed to be height-adjustable with the distribution screw. The channel sheets can thus be optimally aligned with the distribution screw for the initial layer of surfacing material during each height adjustment of the distribution screw.

[0003] Since extension sections are connected to the channel plates located at the level of the supporting structure, handling using extension sections is also considerably simplified. Making any adjustments without loss of time improves the possibility of increasing the paver's basic working width by means of laterally mounted screw conveyors. The screw conveyors or corresponding screw extensions are in fact mounted with channel plates. Such channel plates are mounted, in the direction of travel, in front of a corresponding screw shaft at the level of a screw conveyor frame section or directly on the paver frame. Together with a smoothing beam, they form what is called a screw trough.

[0004] The channel plate extension sections are modularly inserted, shorter and longer, edge sections of sheet metal which can be selectively fastened, in particular screwed, to each other in a combinable manner and directly by end flanges. In order to prevent the channel plate extension sections from being pushed back in the working direction by the pre-coating layer and the transverse distribution screw operating on it, and also to support the additional weight, counter-pressure bars and lifting bars are integrated. The counter-pressure bars usually bear directly on the extension sections, for example as also described in EP 2 169 117 B1. If only the base beam width is integrated, the channel plates and the distribution screw extensions are omitted.

[0005] Since adjusting the working width of the screed beam also varies the width of the spread material, excessive material may be spread in front of the distribution screw in the direction of travel of the paver using the screed beam. To prevent this, it is further known, according to EP 3 988 714 A1, to configure the effective width of the channel plate assembly so that it is adaptable to the working width of a screed beam in a manner simple for the operator. For this purpose, a widening device is provided on a basic channel plate assembly, comprising a first channel plate and a second channel plate pivoting relative to it. The channel plate widening sections can preferably be rigidly connected to the basic channel plate assembly, for example, by means of screws.

[0006] In this case, disadvantageously, although the possibility of adjusting the effective width of the channel plates is created, by which they prevent an undesirable spreading of material in the direction of driving of the paver in front of the distribution screw, such a structure of channel plate parts must nevertheless be dismantled for transport of the paver on a low-loader semi-trailer.

[0007] A paver is transported from one construction site to another on the public road without widening sections (within the basic working width) on a low-loader semi-trailer with a width of 3 m (maximum transport width). In order to construct roads with widths ranging from approximately 3 m to 16 m, it is necessary, among other things, to widen the transverse distribution screw behind the paver. This is achieved in particular using screw extensions and screw support plates. Thus, the individual screw support plates are screwed onto the paver piece by piece, depending on the road width. Since the pavers are transported from one construction site to another on low-loader semi-trailers, it is necessary to install and remove the screw extensions and the associated channel plate assembly before and after the machine is used on the construction site, so that the maximum transport width is not exceeded. Description of the invention

[0008] The objective of the invention is therefore to provide a paver for which the effective width of the channel plate assembly can be configured adaptably to the working width of a beam (smoother) in a way that is simple for the operator, and the maximum transport width of the paver is not exceeded for transport on a low-loader semi-trailer.

[0009] This objective is achieved through the features of claim 1.

[0010] Thus, a finisher is planned for which the entire set of channel plates no longer to be installed and removed for the transport of the paver. According to the invention, the entire assembly of The channel sheet system uses channel sheet flaps that can be mounted on both sides of the paver, folded back onto the paver, for example, parallel to each other. This ensures that the paver's maximum transport width is not exceeded, even though the channel sheets remain mounted during transport. Consequently, the paver operator saves time and energy. To mitigate potential wind loads on the paver during transport on a low-loader semi-trailer, the rotatably hinged channel sheets can be positioned at an angle of + / - 10° relative to the vertical plane defined by the beam's traction arms, thus acting as a quasi-aerodynamic deflector. The sheets can therefore also be angled forward.

[0011] Another considerable advantage lies in the fact that the rotary articulation of the flap-shaped channel sheets can be achieved using hinges having one or more, in particular two, pivot points. With such a double hinge, the folding channel sheet can be locked in a rotational position. In a double hinge, one element acts as a locking element for the other, in a complementary manner for both the unfolded and folded positions. The hinges can be made according to the invention in the form of pivot bearings having one or more bearing eyes. The folding of the channel sheets can be carried out mechanically, using a hydraulic or electrical device. Support bars can also be attached to the folded channel sheets.

[0012] Other advantages and embodiments of the invention will become apparent from the description below and the secondary claims. Brief description of the drawings

[0013] The invention is explained in more detail below with the help of the embodiment examples shown in the accompanying illustrations.

[0014] [Fig-1] Fig. 1 schematically illustrates a top view of a paver comprising a set of unfolded channel sheets.

[0015] [Fig.2] Fig.2 schematically illustrates a side view of the paver according to the [Fig.l] comprising a set of folded channel sheets.

[0016] [Fig.3] Fig.3 schematically illustrates, in an enlarged representation, a connection of a folding channel sheet to a load-bearing structure in the vicinity of a base portion of channel sheet at the level of a front side in the direction of driving of the paver.

[0017] [Fig.4] Fig.4 schematically illustrates, in an enlarged representation, the connection of the folding channel sheet according to [Fig.3] at the level of a rear side in the direction of driving of the paver.

[0018] [Fig.5] Fig.5 schematically illustrates obliquely from the rear a perspective view of a modified embodiment of the paver with unfolded channel sheets.

[0019] [Fig.6] The [Fig.6] schematically illustrates a partial view of the [Fig.5] on a front side of a connection of the unfolded channel sheets to a supporting structure.

[0020] [Fig.7] Fig.7 schematically illustrates the partial region marked in Fig.6 in enlarged representation.

[0021] [Fig.8] Fig.8 schematically illustrates the finisher as in Fig.5 with folded channel sheets.

[0022] [Fig.9] The [Fig.9] schematically illustrates the partial region marked in the [Fig.8] in enlarged representation.

[0023] Detailed description of particular embodiments

[0024] Figures 1 to 4 illustrate a paver comprising a frame 2 supported by a rolling mechanism 1, at least one primary drive source, a hydraulic system, and a beam 4 mounted in an articulated manner by means of traction arms 3. In addition, the paver includes an asphalt conveying assembly comprising a storage hopper 5, a longitudinal conveying device 7 conveying from the storage hopper 5 to a transverse distribution screw 6, and a set of channel plates 8 arranged vertically in front of the transverse distribution screw 6 in the direction of paving R. This set of channel plates 8 has a channel plate base portion 9 of a transverse distribution channel 11 created in front of a beam base body 10 of the beam 4.

[0025] In this case, it is a typical embodiment of a paver. The running mechanism 1 can be a tracked running mechanism or a wheeled running mechanism. The longitudinal conveying device 7 preferably comprises two parallel belt conveyors, so as to be able to feed a right and a left side of the transverse distributor separately. The transverse distributor is here implemented in the form of a transverse distribution screw 6.

[0026] According to the invention, the channel sheet assembly 8 is made in such a way that channel sheets 12, 13 which can be folded at least in certain parts are provided as an extension of the base part of the channel sheet 9 laterally with respect to the base body of the beam 10 and with respect to a transverse position with respect to the direction of laying the coating R. For this purpose, the channel sheets 12 are, by means of a folding mechanism in the form of hinges 14, rotationally articulated on a supporting structure 15 in the vicinity of the base part of the channel sheet 9 around at least one pivot axis X as channel sheets 12 in the form of flaps and are fixed by a closing element 16 so as to prevent unintentional pivoting.

[0027] A selectable number of channel sheets 13 can be mounted on the folding channel sheets 12, which are pivotally articulated on the paver by means of a supporting structure 15, in order to obtain an extension, necessary for a desired paving width, of the channel sheet assembly 8. The mounting can be carried out mechanically and preferably rigidly by interlocking, screwing, etc., as shown in [Fig. 1]. The channel sheets 12, 13 preferably form an assembly for the pivoting mechanism having an effective length relative to the axis passing through the center of rotation of the hinges 14.

[0028] For transporting the paver, for example on a low-loader semi-trailer (not shown), the folding mechanism / hinges 14 according to the invention allow the channel sheets 12, 13 to pivot as a whole in the direction of the paving operation R, i.e., forwards, around the pivot axis X, which is preferably oriented substantially vertically or inclined with respect to the vertical. A lateral support position relative to the paver's rolling mechanism 1 can therefore be adopted.

[0029] The assembled channel plates 12, 13 are thus folded by means of the channel plate 12 (assembled support plate) which is rotatably hinged on the paver at the level of the support structure 15. This forms a pivoting lateral cover element for the rolling mechanism for transporting the paver on public roads. As illustrated in [Fig. 1], the working width of the paver is reduced to a transport width, without the channel plate assembly 8 needing to be even partially disassembled. The preceding embodiments are described for bilateral extensions of the channel plate assembly 8, but are equally valid for unilateral extensions.

[0030] As illustrated in figures 5 to 9, the folding channel sheets 12, 13 can be positioned at an opening angle of + / - 10° relative to an outer lateral limit of the paver.

[0031] Preferably, the respective hinge 14 is fixed (see [Fig.9]) in the region of a corner edge 18 of a front side 19, turned towards the base part of the channel sheet 9, of the folding channel sheet 12 with a pivot axis X parallel to a front surface 17 of the channel sheet 12 (see Figures 6 and 7).

[0032] As illustrated in particular by figures 3 and 9, the hinges 14 preferably have at least one pin 20 arranged in the vertical direction or in an oblique orientation and having a head bolt 21 serving as a pivot bearing, which bolt can be inserted into at least one bearing eye 22, the shaft carrying the bearing eyes 22 being able to be supported on the supporting structure 15.

[0033] Preferably, in the case of hinges 14 with double pivot axis X, Y (see [Fig.9]), the bearing eyes 22, 24, arranged respectively at a distance from each other, are arranged in vertical overlap.

[0034] Preferably, the supporting structure 15 is supported on the paver frame 2. [Fig. 1] further illustrates that the channel plate assembly 8 includes extension channel plates 13 laterally relative to a beam base body 19, which are rigidly connected to each other, in order to variably adjust the effective width of the channel plate assembly 8 in the horizontal direction by means of removable widening channel plates 13, and this as a function of an extension of the transverse distribution screw and the beam 10 by beam widenings 25.

[0035] Preferably, on the left and / or right of the paver, at least one support rod is provided which is fixed on one side to the paver's frame / rolling mechanism and on the other side to the channel plate assembly 8.

[0036] The closing element 16 can be made in the form of a lock by means of a snap-lock mechanism, a door lock or a double hinge having two hinge axes X, Y.

[0037] Preferably, the closing element 16 may include a double-jawed bolt having pin cylinders that can engage in and disengage from the respective hinge 14 in an unfolded position and a folded position of the channel sheet metal flap 12.

[0038] Preferably, the supporting structure 15 is fixed in the vicinity of the traction arms 3 of the beam 4.

[0039] The paver's rolling mechanism 1 can be a tracked rolling mechanism or a wheeled rolling mechanism.

[0040] Preferably, a control unit for controlling the effective width of the channel plate assembly 8 as a function of the working width of the beam may be provided. Support for the invention

[0041] A paver comprising a frame supported by a rolling mechanism, at least one primary drive source, a hydraulic system, a beam mounted in an articulated manner by means of traction arms, and an asphalt conveying assembly comprising a storage hopper, a longitudinal conveying device conveying from the storage hopper to a transverse distribution screw, and a set of channel plates arranged vertically in front of the transverse distribution screw in the direction of paving, which set of channel plates having a channel plate base portion of a transverse distribution channel created in front of a beam base body, characterized in that that the channel sheet assembly has channel sheets that can be folded at least in certain parts as an extension of the basic part of the channel sheet laterally relative to the basic body of the beam and relative to a transverse position relative to the direction of laying of the coating, which channel sheets are, by means of hinges, rotationally articulated on a supporting structure in the vicinity of the basic part of the channel sheet around at least one pivot axis as channel sheets in the form of flaps and are fixed by a closing element so as to prevent unintentional pivoting.

[0042] The channel sheets can be folded and retractable as pivoting side cover elements of the rolling mechanism for paver transport.

[0043] The folding channel sheets can be positioned at an opening angle of + / - 10° relative to an outer lateral limit of the paver.

[0044] The respective hinge can be fixed in the region of a corner edge on a front side, turned towards the base part of the channel sheet, of the folding channel sheet with a pivot axis parallel to the front surface of the channel sheet.

[0045] The hinges may have at least one pin arranged in the vertical direction or in an oblique orientation and having a head bolt serving as a pivot bearing, which bolt may be inserted into at least one bearing eye, the bearing shaft of the bearing eyes being able to be supported on the supporting structure.

[0046] In the case of double pivot axis hinges, the bearing eyes can be arranged respectively at a distance from each other and are arranged in vertical overlap.

[0047] The supporting structure can be supported on the paver's chassis.

[0048] The channel plate assembly may include channel plates extending laterally relative to a beam base body, which are rigidly connected to each other, in order to variably adjust the effective width of the channel plate assembly in the horizontal direction by means of removable widening channel plates as a function of an extension of the transverse distribution screw.

[0049] On the left and / or right of the paver, at least one support rod may be provided which is fixed on one side to the paver's frame / rolling mechanism and on the other side to the channel plate assembly.

[0050] The closing element can form a blockage by means of a snap-lock mechanism, a door lock or a double hinge having two hinge axes.

[0051] The closing element may include a double-jawed bolt having pin cylinders that can engage in and disengage from the respective hinge in an unfolded position and a folded position of the channel sheet metal flap.

[0052] The supporting structure can be fixed in the vicinity of the beam's traction arms.

[0053] The rolling mechanism can be a tracked rolling mechanism or a wheeled rolling mechanism.

[0054] A control unit for controlling the effective width of the channel plate assembly (8) as a function of the working width of the beam may be provided.

Claims

Demands

1. A paver comprising a frame (2) supported by a rolling mechanism (1), at least one primary drive source, a hydraulic system, a beam (4) mounted in an articulated manner by means of traction arms (3) and an asphalt conveying assembly comprising a storage hopper (5), a longitudinal conveying device (7) conveying from the storage hopper (5) to a transverse distribution screw (6) and a channel plate assembly (8) arranged vertically in front of the transverse distribution screw (6) in the paving direction (R), which channel plate assembly having a channel plate base portion (9) of a transverse distribution channel (11) created in front of a beam base body (10) of the beam (4), characterized in that the channel plate assembly (8) has channel plates (12,13) capable of being folded at least in certain parts as an extension of the channel sheet base (9) laterally relative to the beam base body (10) and relative to a transverse position relative to the coating laying direction (R), which channel sheets are, by means of hinges (14), rotationally articulated on a supporting structure (15) in the vicinity of the channel sheet base (9) around at least one pivot axis (X) as flap-shaped channel sheets (12, 13) and are fixed by a closing element (16) so as to prevent unintentional pivoting.

2. Paver according to claim 1, characterized in that the folding channel sheets (12, 13) are retractable as pivoting side cover elements of the rolling mechanism (1) for transporting the paver.

3. Finisher according to claim 2, characterized in that the foldable channel sheets (12, 13) can be positioned at an opening angle of + / - 10° relative to an outer lateral limit of the finisher.

4. Finisher according to any one of claims 1 to 3, characterized in that the respective hinge (14) is fixed in the region of a corner edge (18) on a front side (19), facing the base portion of the channel sheet (9), of the folding channel sheet (12) with an axis of pivoting (X) parallel to the front surface (17) of the channel sheet (12).

5. Finisher according to any one of claims 1 to 4, characterized in that the hinges (14) have at least one pin (20) arranged in the vertical direction or in an oblique orientation and comprising a head bolt (21) serving as a pivot bearing, which bolt can be inserted into at least one bearing eye (22), the bearing shaft of the bearing eyes (22) being able to be supported on the supporting structure (15).

6. Finisher according to claim 5, characterized in that, in the case of hinges (14) with double pivot axis (X), the bearing eyes (22) arranged respectively at a distance from each other are arranged in vertical overlap.

7. Paver according to any one of claims 1 to 6, characterized in that the load-bearing structure (15) is supported on the frame (2) of the paver.

8. Finisher according to any one of claims 1 to 7, characterized in that the channel plate assembly (8) comprises extension channel plates (12, 13) laterally relative to a beam base body (10), which are rigidly connected to each other, in order to variably adjust the effective width of the channel plate assembly (8) in the horizontal direction by means of removable widening channel plates (12, 13) as a function of an extension of the transverse distribution screw (6).

9. Paver according to any one of claims 1 to 8, characterized in that on the left and / or right of the paver there is provided at least one support rod which is fixed on one side to the frame (2) / rolling mechanism (1) of the paver and on the other side to the channel plate assembly (8).

10. Finisher according to any one of claims 1 to 9, characterized in that the closing element (16) forms a blockage by means of a snap-lock mechanism, a door lock or a double hinge having two hinge axes (X, Y).

11. Finisher according to any one of claims 1 to 10, characterized in that the closing element (16) comprises a double-jawed bolt having pin cylinders which can engage in and disengage from the respective hinge (14) in an unfolded position and a folded position of the channel sheet metal flap (12, 13).

12. Finisher according to any one of claims 1 to 11, characterized in that the supporting structure is fixed in the vicinity of the traction arms (3) of the beam (4).

13. Paver according to claims 1 to 12, characterized in that the rolling mechanism (1) is a tracked rolling mechanism or a wheeled rolling mechanism.

14. Finisher according to any one of claims 1 to 13, characterized in that a control unit for controlling the effective width of the channel plate assembly (8) as a function of the working width of the beam (4) is provided.

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