EP1873313A2 - Paver and method for building a hard shoulder in reverse gear - Google Patents

Abstract

The method involves providing an accommodation container (34), which surrounds a transverse spreading device in such a manner that the installation goods provided for storage on the container do not fall on a roadway. The container is installed at a road finisher (10). The road finisher is processed in a backward direction to produce the installation goods relative to the road finisher for producing a banquet. An independent claim is also included for a road finisher with an accommodation container.

Description

The present invention relates to a paver and a method for producing banquettes or side-strip-like coverings, which are manufactured outside - and preferably only outside - a base width of a conventional road paver.

A paver is a construction machine commonly used in road construction for the production of a pavement, e.g. a road surface, is used. With a paver, an area of asphalt, concrete, gravel etc. can be made over a width of approx. 1 to 16 meters.

A paver performs several operations that were previously performed by different machines in a row. A supply of a material to be installed (built-in material) is carried out either indirectly via a so-called. Feeder or directly from a truck, the material is then stored in a container (bunker), which is part of the road paver. By means of conveyor chains, which are provided on an underside of the bunker, the paving material is installed against a direction of travel of the paver to the rear and then via a (cross) distribution device (auger) transversely to the installation direction (i.e., the direction of travel). The screw conveyor evenly distributes the material over a width to be installed. In a further step, the built-in material is precompressed, smoothed and / or compacted by means of a so-called screed, which is fastened to screed beams arranged on both sides on a so-called traction tractor of the road paver.

A paver operating in this manner is also referred to as a "paver with floating screed" paver.

The built-in material, which can have a wide variety of qualities, is laid on a suitably prepared substrate (planum), if possible in high compaction quality, level and profile-appropriate. Planum refers to a base course on which a road, a path, a building or similar can be built.

In general, it is desirable for the paving material to be installed to be independent of individual construction site parameters, such as width, length, lining thickness, etc., in particular uniform and continuous compaction, even with thicker paving, equality of flatness and uniformity Surface texture guaranteed. These requirements are usually met by a paver with floating screed.

FIG. 5 shows by way of example a road paver 110 according to the prior art.

The paver 110 according to the prior art comprises a pull tractor 112, which here on tracks 114 for installation of built-in material (not shown) in the forward direction 116 is movable. In the front area of the paver 110, a material bunker 118 is provided which serves to receive the paving material and which subsequently (internally) conveys it to a rear area of the paver 110 where a screed 120 is attached to uprights 122.

On the side next to an actually produced road surface is often also a so-called banquet to manufacture. A banquet is a partially fortified side strip, for example on streets. It is located next to a carriageway and is generally secured with a light layer of crushed stone, humus or soil and covered with a topcoat or turf. In the area of the banquet there are often street signs or safety barriers.

In order to make a border strip or a banquet of a street, the material used for the production of the banquet is conveyed (manually) from a bunker provided on the paver to the planum of the banquet. Alternatively, a conveying device may be provided with which material is deposited parallel to the road to be produced along a longitudinal side of the paver and this material is then smoothed out by a stripping device entrained by the paver moving in the direction of travel. Such a side finisher is exemplary in the DE 92 02 610 U1 disclosed.

Known banquet strip pavers have significant disadvantages. A particular disadvantage is that expensive banquet finishers can only be used for this special work. Furthermore inevitably results in the known banquet pavers that the new banquet next to the edge of the road is not sufficiently compacted or that must be recompressed separately with compaction equipment. This has the disadvantage that damage (depressions, accumulations of water, run-off, etc.) can result from the eventual driving on the edge strip, which can have a traffic hazard.

It is therefore an object of the present invention to provide an improved method for installation of a banquet and a device for attachment to a conventional paver with which a conventional paver is enabled to perform the method according to the invention.

This object is achieved by a method for producing a banquet, wherein the banquet is preferably to produce laterally from a carriageway, wherein for the production of a conventional paver with transverse distribution means is used, with the normally a built-in for the production of a road surface during a journey in the forward direction of the paver is installed, comprising the following steps: Provision of a receptacle which surrounds the transverse distribution device such that the built-in, which is given for storage purposes in the receptacle, can not fall on the road; Mounting the receptacle to the paver; and method of the paver in a backward direction for laterally placing the paver in relation to the paver for making the banquet.

Further, the invention proposes a receptacle for mounting on a conventional paver, which is moved to produce a road surface in a forward direction, wherein the receptacle surrounds a transverse distribution of the paver such, the built-in, which arranged for the preparation of a banquet, which laterally to a roadway is, is needed, does not fall on the roadway on which the paver is moved in a backward direction during manufacture of the banquet, and wherein the receiving container protrudes laterally across a width of the paver in a state mounted to the paver.

The object is further achieved by a paver with a receptacle, which is formed according to the invention.

The present invention enables a more efficient installation of a banquet in offset mode. For this purpose, an ordinary road paver is used, which can be relatively easily and economically converted. The conversion is fast. A dismantling is possible.

With an existing and recognized machine technology, a new method of installation is made possible by the paver in the reverse direction, i. in the reverse direction, to provide and process the material required to install the banquet.

A building material which, when the paver is used conventionally, e.g. when the paver is operated in the forward direction falls on the road surface and can not be fully transported by the transverse distribution device in the outer edge area, which is intended to be installed for the banquet. The present invention proposes a receptacle which, when the paver is moved in the reverse direction for installation, holds the material in the area of the transverse distribution device and prevents contamination of an already manufactured roadway. The property is only provided in the area of the banquet.

From an economic point of view, there is an improved utilization of an already existing machine park, since conventional road pavers can be adapted at any time for the installation of a banquet.

An acquisition of costly special machines, which usually have to be purchased for the banquet installation, is completely eliminated.

According to a preferred embodiment, the receptacle is tilted such that an inserted in the receptacle insert moves in the direction of the transverse distribution.

This measure has the advantage that the receptacle can be emptied better. For this purpose, the receptacle is formed so that the transverse distribution device is arranged at a low point in the receptacle, so that slid almost automatically in the area of the transverse distribution device.

Furthermore, it is advantageous if the insert is presented laterally relative to the paver.

If the product is placed sideways, no further measures are required to bring the product into the area of the banquet from the center (i.e., the area of the pavement).

In particular, the banquet is swept after the banquet is made.

In this way it is ensured that the installation of the banquet is clean.

According to a further preferred embodiment, a length-adjustable outlet opening in the receptacle is set to a desired width of the banquet.

An adjustable outlet opening has the advantage that the receptacle formed in this way can be used for different widths of banquets, so that a single receptacle can be used for many different banquet widths.

Moreover, it is advantageous if the receptacle and the transverse distribution device can be inclined relative to a horizontal.

Thus, a desired inclination profile of the banquet can be adjusted. Often, the banquet is averse to the outside, for example, to dissipate water, which collects on the adjacent road surface, laterally from the roadway. This inclination of the banquet can thus be easily generated.

According to another embodiment, before a banquet installation a particular floating screed, which is mounted in a roadway production on the paver, disassembled by the paver and mounted again after production of the banquet on the paver.

A conventional paver can thus be used not only for the installation of road surfaces, but also for the installation of banquet coverings. After installation, the paver equipped for a banquet installation can be built back again. After completion of dismantling, the paver can in turn be used for the installation of a road surface.

Furthermore, it has been found to be advantageous if the screed is deposited during manufacture of the banquet in a material bunker of the paver.

In this case, the screed is always carried along with the paver. The paver can be immediately built back and is thus immediately available again.

According to a preferred embodiment of the receptacle this is designed such that it can be releasably attached to the paver instead of a, preferably floating, screed.

The receptacle and the screed have the same arrangement and equal functioning fasteners, so that the exchange between screed and receptacle is easy and quick to accomplish.

Furthermore, it is advantageous for the receptacle to have an outlet opening in order to be able to present the item to be installed for the purpose of producing the banquet. In particular, the outlet opening is provided at a point located deep in the receptacle, so that the presentation is done solely due to gravitational force.

Thus, no further action is required to get the property back out of the receptacle when it is to be presented as a banquet.

Preferably, the outlet opening is closable and / or adjustable in length.

A closable outlet opening has the advantage that the banquet can be made interrupted. This is particularly desirable if, in the area of the banquet, e.g. Manhole covers are arranged, which should not be covered with paving material. Preferably, the outlet opening is easy to close with a slide. By means of the slide and the length of the outlet opening can be varied. Thus, it is possible to adjust the width of the banquet.

According to another preferred embodiment, the receptacle is open at the top.

In this way, built-in can be given by means of a dump truck (truck) in the receptacle. The filling with the built-in material can take place in particular during a banquet production itself, so that the paver does not have to be stopped in order to fill in or refill the building material.

In addition, it is advantageous if the receptacle is folded up for better emptying.

It is also preferred if the receptacle is designed to be telescopic.

A telescopic receptacle makes it possible that the paver does not necessarily have to be moved to the immediate edge of the road to submit the deposit for the banquet. So it is e.g. In the area of tight bends, it is possible to let the paver drive further in or further out.

Furthermore, it is advantageous if a paver according to the invention additionally comprises a banquet screed which can be mounted laterally on the outside of a screed spar of the paver in the forward direction in front of the receiving container.

With a banquet screed, the paving material intended for the banquet can be pre-compacted, smoothed and / or finally compacted.

According to a further preferred embodiment, the paver further comprises a cleaning device, in particular a rearrangement device, which is arranged such that the roadway and / or the banquet can be cleaned, in particular swept, after successful banquet installation.

It is understood that the features mentioned above and those yet to be explained below can be used not only in the particular combination given, but also in other combinations or in isolation, without departing from the scope of the present invention.

Fig. 1

eine schematische Seitenansicht eines Straßenfertigers mit einem Aufnahmebehälter gemäß der vorliegenden Erfindung;

Fig. 2

eine schematische Draufsicht auf den Straßenfertiger der Fig. 1;

Fig. 3

den Straßenfertiger der Fig. 1, wobei der Aufnahmebehälter gekippt ist;

Fig. 4

ein Flussdiagramm zur Veranschaulichung des Verfahrens gemäß der vorliegenden Erfindung; und

Fig. 5

eine schematische perspektivische Ansicht eines Straßenfertigers gemäß dem Stand der Technik.

Embodiments of the invention are illustrated in the drawings and are explained in more detail in the following description. Show it:

Fig. 1

a schematic side view of a road finisher with a receptacle according to the present invention;

Fig. 2

a schematic plan view of the paver of Fig. 1;

Fig. 3

the paver of Figure 1, wherein the receptacle is tilted.

Fig. 4

a flowchart illustrating the method according to the present invention; and

Fig. 5

a schematic perspective view of a road paver according to the prior art.

Fig. 1 shows a schematic side view of a road paver 10 according to the present invention. In the following description, like elements will be denoted by the same reference numerals.

The road paver 10 includes a tractor pull 12, which is moved here on caterpillars 14. Of course, wheels or similar devices could be used to move the paver 10.

Conventionally, the road paver 10 is moved in the forward direction 16 to incorporate a roadway, including usually built-in (not shown) in a material bunker 18, for example by means of a dump truck, given and stored. The material bunker 18 is located in a front region of the paver 10.

In the road paver 10 shown in FIG. 1, a conventional screed 20 is "temporarily stored" in the material bunker 18. The screed 18 is usually attached in a rear area on lateral beam spars 22 and is "retraced" when installing a roadway when the paver in the direction of the 16th is moved. The screed beams 22, of which only a single screed spar 22 is shown in FIG. 1, are height-adjustable with the aid of adjusting mechanisms (cylinders) 24, 26.

Furthermore, a conventional transverse distribution device 28 is provided in the rear region of the road paver 10, with which usually the screed 20 inserted material transverse to the direction of travel 16 is presented. The transverse distribution device 28 is implemented here by a screw conveyor. The screw conveyor 30 is rotatably mounted, as indicated by an arrow 32. In order to distribute the built-in material, which is usually transported internally from the material bunker 18 to the transverse distribution device 28, transversely to the installation direction, the screw conveyor is driven in rotation. The corresponding drive is not shown here.

According to the present invention, instead of the conventional screed 20, a receptacle 34 is provided in such a way that no paving material can reach the road on which the paver 10 is moved to install a banquet.

The receptacle 34 comprises a trough. The receptacle 34 may additionally comprise a storage trolley 38. However, it could also consist only of a preferably made of sheet metal tray 40, as indicated by a dashed line 40. The storage trolley 38 can be fastened to the screed rails 22 by means of an adapter plate 50.

The receptacle 34 is attached to either the pull tractor 12 and / or to the screed rails 22. In FIG. 1, the storage trolley 38 is connected to the screed beams 22 and replaces the screed 20 usually provided there.

In order to install the banquet, the paver 10 is not moved in the direction 16 as in the prior art, but in the reverse direction 42. For this purpose, preferably, a control stand 44, which is operated by an operator 46, rotate by 180 °, so that the operator 46 looks in the rear region of the paver 10, as indicated by a dashed arrow 48.

Referring to FIG. 2, a schematic plan view of a paver 10 according to the invention is shown.

In order to install a banquet 60, the paver 10 is moved in the reverse direction 42 on a road 58. The roadway 58 adjoins the banquet 60 laterally. Preferably, the paver 10 is moved almost exactly along a boundary line between the lane 58 and the banquet 60. The banquet 60 may e.g. filled with pebbles or gravel, as indicated by dashes and dots.

In Fig. 2, the receptacle 34 is clearly visible. The storage container 34 here comprises the trough 40 and in addition the storage wagon 38. The storage wagon 38 comprises a chassis with wheels 52 and 54 and an outer wall 56. The storage wagon 38 opens into the trough 40, so that a supply of built-in material is guaranteed at all times.

The receptacle 34 has here in its bottom part an outlet opening 62, which is preferably adjustable in length, as indicated by a double arrow 64. The length adjustability serves to adapt to a width of the banquet 60. Optionally, in the region of the outlet opening 62, a slide (not shown) can be provided with which the outlet opening 62 can be closed in order to be able to interrupt the installation of the banquet 60 as desired. Preferably, the receptacle 34 itself is telescopic designed to vary the position of the paver 10 relative to the banquet 60 can. The outlet opening is preferably at a low point to automatically convey the object to be built by gravity from the receptacle 34.

It is understood that the storage trolley 38 could also be omitted. The receptacle 34 (or the trough 40) would then be designed so that a dump truck built-in property can tilt directly into the receptacle 34.

Depending on the material and quality of the insert used, a screed 66 (similar to the usual screed 20, but with a smaller width) can optionally be attached to the corresponding screed spar 22 (not shown in FIG. 2). The further screed 66 is arranged relative to the mounting direction 42 of the banquet upstream relative to the receptacle 34.

Further, cleaning means 68 and 70, such as e.g. Kehreinrichtungen be provided to clean after installation, the banquet 60 and / or the roadway 58.

In Fig. 3, the paver of Fig. 1 is shown again, wherein a portion of the receptacle 34, here the storage wagon 38, is pivoted, as indicated by a double arrow 72. Built-in, which is located in the storage trolley 38, slips in the direction of the screw conveyor 30, as indicated by an arrow 74. The tilting movement is controlled by a tilting device, such as a tilting device. a hydraulic cylinder 76 causes.

Referring to Fig. 4, the inventive method is shown again in the form of a flow chart.

In a first step S1, a receptacle is provided to replace the conventional screed. In a step S2, the receptacle is mounted on the paver. In a step S3, the receptacle is filled with built-in. In a step S4, the paver is reversed, and not in the forward direction as is conventional in the art. Optionally, in a step S5, the built-in object for the banquet can be precompressed, smoothed and / or finally compacted. Optionally, the banquet and / or the roadway can then be cleaned.

It is understood that the configuration of the trough according to the invention is such that the transverse conveying region is closed in particular downwards. Of course, the lower portion of the trough is provided in the area of the banquet with a variable and rotatable opening, so that the built-in material can be fed to the predetermined area (banquet) and then exits there. A height adjustment or setting a desired inclination profile is realized with an existing hydraulic height adjustment of the auger. In this case, installed channel plate units (not shown) can simultaneously act as scrapers.

With the adapter plate 50 receiving flanges of the spars are used so that a screed body (comparable to the normal installation, but asymmetrical) can be grown for better pre-compression. The additional screed body consists essentially of a variable in width attachment and is preferably mechanically fastened by means of a screw on the adapter plate.

In principle, such attachment points can be used for the components according to the invention, which in the normal configuration (paver operated in the forward direction) serve as articulation points, flanges, leveling beams and the like for the screed 20. These are modified so that they are offset by 180 °.

With the method according to the invention molded parts, such as e.g. special gutter plates, watercourses, etc. are made obliquely and straight.

The rearward installation can u.a. for just strip installation, for installation with profile, for filling a canal trench, etc. are used.

Claims (20)

Method for producing a banquet (60), which is preferably to be produced laterally from a carriageway (58), using for production a conventional road paver (10) with transverse distributing means (28, 30) with which normally a paving material for producing a pavement ( 58) during travel of the paver (10) in the forward direction (16) is installed, with the following steps: Providing (S1) a receptacle (34) surrounding the transverse distributing means (28, 30) such that contents placed in the receptacle (34) for storage purposes can not fall on the carriageway; Mounting (S2) the receptacle (34) on the paver (10); and A method (S4) of the paver (10) in a backward direction (42) for laterally placing the paver in relation to the paver (10) to make the banquet (60). A method according to claim 1, wherein the receptacle (34) is filled with material. A method according to claim 1 or 2, wherein the receptacle (34) is inclined (72) such that the receptacle located in the receptacle (34) moves in the direction (74) of the transverse distributing means (28, 30). Method according to one of claims 1 to 3, wherein the built-in material is presented laterally relative to the paver (10), to be subsequently pre-compressed, smoothed and / or compacted (S5). A method according to any one of claims 1 to 4, wherein after the banquet (60) is made, the banquet is swept (S6). The method of any one of claims 1 to 5, wherein an adjustable outlet opening (62) in the receptacle (34) is adjusted to a desired width of the banquet (60). A method according to any one of claims 1 to 6, wherein the receptacle (34) and the transverse distribution means (28, 30) are inclined to a horizontal to allow a desired inclination profile of the banquet (60). Method according to one of claims 1 to 7, wherein for pre-compacting, smoothing and / or compacting of submitted sludge a preferably adjustable in width screed (66) is laterally mounted on the paver (10). Method according to one of claims 1 to 8, wherein dismantled before a banquet installation, a, preferably floating, screed (20) which is mounted in a roadway production on the paver (10) of the paver (10) and after the manufacture of the banquet (60) is mounted again on the paver (10). The method of claim 9, wherein the screed (20) is deposited during manufacture of the banquet (60) in a material bunker of the paver. A receptacle (34) for mounting on a conventional paver (10) for moving a pavement in a forward direction (16), the receptacle (34) surrounding a transverse manifold (28, 30) of the paver (10) such that A building material which is required for the production of a banquet (60), which is arranged laterally to a roadway (58), does not fall on the roadway (58) on which the paver (10) is moved in a backward direction (42) during manufacture of the banquet (60), and wherein the receptacle (34) is in a condition mounted to the paver (10) projecting laterally over a width of the paver (10). A receptacle according to claim 11, which is designed such that it can be releasably attached to the paver (10) instead of a, preferably floating, screed (20). A receptacle according to one of claims 11 or 12, wherein the receptacle (34) has an outlet opening (62) in order to be able to present stoppers for producing the feast (60). A receptacle according to claim 13, wherein the outlet opening (62) is closable and / or adjustable in length (64). A receptacle according to any one of claims 11 to 14, wherein the receptacle (34) is open at the top so that matter can be dumped into the receptacle (34) by means of a dump loader, especially while banqueting is taking place. A receptacle according to any one of claims 11 to 15, wherein the receptacle (34) is foldable (72) for better evacuation. A receptacle according to any one of claims 11 to 16, wherein the receptacle (34) is telescopic. Paver (10) with a receptacle (34) according to one of claims 11 to 17. A paver (10) according to claim 18, further comprising a banquet screed (66) mountable in forward direction (16) in front of the receptacle (34) laterally outboard of a screed spar (22) of the paver (10). Road paver according to one of claims 18 or 19, further comprising a cleaning device (68, 70), in particular a sweeper, which is arranged such that the roadway (58) and the banquet (60) cleaned after successful banquet installation, in particular swept , can be.

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