EP0879918B1 - Screed for a road paver - Google Patents
Screed for a road paver Download PDFInfo
- Publication number
- EP0879918B1 EP0879918B1 EP98106619A EP98106619A EP0879918B1 EP 0879918 B1 EP0879918 B1 EP 0879918B1 EP 98106619 A EP98106619 A EP 98106619A EP 98106619 A EP98106619 A EP 98106619A EP 0879918 B1 EP0879918 B1 EP 0879918B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- screed
- surfacing
- extension
- widening
- width
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 230000008878 coupling Effects 0.000 claims abstract description 7
- 238000010168 coupling process Methods 0.000 claims abstract description 7
- 238000005859 coupling reaction Methods 0.000 claims abstract description 7
- 238000009499 grossing Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 description 4
- 239000000969 carrier Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/30—Tamping or vibrating apparatus other than rollers ; Devices for ramming individual paving elements
- E01C19/34—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight
- E01C19/40—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight adapted to impart a smooth finish to the paving, e.g. tamping or vibrating finishers
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
- E01C2301/10—Heated screeds
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
- E01C2301/14—Extendable screeds
- E01C2301/16—Laterally slidable screeds
Definitions
- the invention relates to a screed specified in the preamble of claim 1 Art.
- the basic width of the basic screed is the permissible width (e.g. 2.50 m) of the paver for transport on the road or on a low loader Voted.
- This basic width must be observed when extending screeds his. When the screeds are fully extended, this is due to the guidance and support the extending planks and, if necessary, an overlap between the Basic screed and each extending screed a working width corresponding to double Basic width not possible. Nevertheless, at least twice the basic width as the working width To achieve this, widening devices are attached to the extending screeds grown.
- each screed there is a sliding mechanism on the inside of each screed provided that each can be used to adjust the double basic width Extend the screed with an additional sliding stroke and still can be adjusted to within the basic width when retracting.
- the leadership the extending screeds are at risk when extended.
- each screed is on the inside a sliding mechanism is provided to meet the oversized requirements Working width and the basic width for transport travel. It the extension of the extending screed can be endangered.
- both extending screeds are inward at the inner ends protruding, mutually complementary projections offset in the working direction provided an overlap in the extended state of the extending screeds between the extending screeds and the base screed and in the retracted Interlock the condition of both extending screeds so that when they are retracted Extending screeds the basic width is observed.
- the invention has for its object to provide a screed on structurally simple way with extended extending screeds as working width at least double basic width can be set without the support of the extending screeds in the extended state, and which can still be used for transport can be adjusted to the basic width.
- the widening parts arranged on the outside of the extending screed allow despite any necessary overlaps between the extending planks and the Basic screed setting at least twice the basic width when extended Extending. Thereby a stable support of the extending planks remains Basic screed as given with screeds, which are not twice the basic width let spread.
- the basic width of the Base screed adhered to, because then the widening parts in the swivel joints are adjustable in passive positions in which they have no influence on the width of the screed have more, although the widening parts are permanent components of the Screeds are. Since the widening parts in their passive positions have no influence the width of the screed, they can be so wide that they even have a working width larger than twice the basic width of the basic screed.
- the widening parts e.g. to repair or Maintenance work, remove.
- the widening parts are safely stowed in their passive positions.
- each widening part is an independent, small auxiliary screed with equipment required for the installation of installation goods.
- the widening parts in the passive layers can be securely attached to one another support.
- the side plates in whole or at least in part be dismantled for transportation.
- the widening parts on the extending planks in the Determine working positions easily and without any significant amount of time.
- the working width can be at least twice the basic width the screed, possibly even an even larger working width.
- the widening parts with their equipment components are expedient trained that there are conventional screeds, in which the double Basic width was not adjustable, have it retrofitted.
- the paver's towable screed B consists of a base screed G with the basic width b and two extending planks A, which can be extended laterally via not in the Support and displacement devices on the base screed G highlighted in detail are supported.
- the basic screed G is - in order to be able to install a profile - in the Center divided at 1 and consists of two screed parts, 2, 3, on which schematically indicated Holding devices 4 for the screeds A are attached at the ends.
- each screed A e.g. on an end plate 6, is a Widening part T by means of fastening elements 10, preferably quick-action fasteners, detachable and arranged such that both screeds A in their maximum extended positions, possibly with internal overlaps Ü, a Define working width ⁇ 2xb, which is roughly twice the basic width, although the width b1 between the ends 5 of the maximum extended screeds A is less than 2xb (e.g. by 0.125 m each).
- Each widening part T belongs to a widening device V, which by means of a Coupling mechanism M is permanently connected to the screed A.
- the Coupling mechanism M allows the widening part T in that shown in Fig. 1 Bring work position and in this by the fasteners 10 to the end 5 to connect the screed A, or to adjust it to a passive position (Fig. 4), in the end 5 of the screed A is free and retracted within the basic width b of the base screed G lies without protruding components protruding to the outside.
- each widening part T is an independent small screed trained with all components required for installation.
- a side plate support 9 which e.g. a holder 21 for a Automatic leveling, parts 22 of a height adjustment and a sensor 23 for the automatic leveling wearing.
- the side plate 8 is either in one part or in several parts and leaves decrease in whole or in part if necessary.
- the widening part T has a housing 15 which is permanently connected to the fastening elements 11 Side plate carrier 9 and / or the side plate 8 is connected.
- the side plate holder 9 is extended opposite to the working direction F by a support arm 12 and connected via a cross member 13 to a swivel joint 16, such that that a cranked support beam 12, 13 is formed.
- the swivel joint 16, preferably a hinge with an approximately vertical hinge axis is approximately at one the outer end 5 is supported to the rear extending arm 14.
- the widening part T is formed with a width dimension (e.g. ⁇ 0.125 m) with the widening section when the screed A is extended and in the working position T at least twice the basic width 2xb can be set despite the overlap Ü is. Since the widening part T with its associated components in one Passive position (Fig. 4) can be adjusted, and in this passive position no influence on the Width, the widening part T could - if necessary - also wider than shown be trained.
- a width dimension e.g. ⁇ 0.125 m
- the swivel joints 16 are offset from one another in the working direction F such that the widening parts T adjusted in the passive positions or their side plate carriers (9) overlap each other.
- each widening part T is about 270 ° relative to Extending screed A swings backwards until the side plate support 9 is approximately parallel to the basic screed G and to the extending screed A. Then, appropriately fixed to the side plate carriers 9, securing elements 24, so that the two widening parts T are supported against each other in their passive positions and can also be held in the swivel joints 16.
- the widening parts T are opposed Folded behind the extension screeds A to the working direction F. It would be but it is also conceivable to move them into a passive position that is diagonally at the back, or even fold it up over the screed.
- Adjustment elements e.g. Hydraulic cylinders or servomotors, provided with which the widening parts T comfortably between their working positions and have passive positions adjusted.
- Adjustment elements e.g. Hydraulic cylinders or servomotors, provided with which the widening parts T comfortably between their working positions and have passive positions adjusted.
- Widening part T additionally or alternatively on one or both extending planks A set. Since the side shields 8 are relatively large, it is possible to transport them to dismantle the screed B at least in part (dashed lines in Fig. 4).
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
- Soil Working Implements (AREA)
- Pretreatment Of Seeds And Plants (AREA)
- Road Paving Structures (AREA)
Abstract
Description
Die Erfindung betrifft eine Einbaubohle der im Oberbegriff des Anspruchs 1 angegebenen Art.The invention relates to a screed specified in the preamble of claim 1 Art.
In einer Einbaubohle ist die Grundbreite der Grundbohle auf die zulässige Breite (z.B. 2,50 m) des Straßenfertigers für den Transport auf der Straße oder auf einem Tieflader abgestimmt. Bei eingefahrenen Ausziehbohlen muß diese Grundbreite eingehalten sein. Bei voll ausgefahrenen Ausziehbohlen ist aufgrund der Führung und Abstützung der Ausziehbohlen und gegebenenfalls einer Überlappung zwischen der Grundbohle und jeder Ausziehbohle eine Arbeitsbreite entsprechend der doppelten Grundbreite nicht möglich. Um dennoch mindestens die doppelte Grundbreite als Arbeitsbreite zu erzielen, werden Verbreiterungseinrichtungen an die Ausziehbohlen angebaut.In a screed, the basic width of the basic screed is the permissible width (e.g. 2.50 m) of the paver for transport on the road or on a low loader Voted. This basic width must be observed when extending screeds his. When the screeds are fully extended, this is due to the guidance and support the extending planks and, if necessary, an overlap between the Basic screed and each extending screed a working width corresponding to double Basic width not possible. Nevertheless, at least twice the basic width as the working width To achieve this, widening devices are attached to the extending screeds grown.
Bei der gattungsgemäßen Einbaubohle gemäß DE 93 13 162 U werden die Verbreiterungsteile fest an den Ausziehbohlen angebaut, wenn eine Arbeitsbreite größer als die doppelte Grundbreite gewünscht ist. Zur Transportfahrt müssen die Verbreiterungsteile abgebaut werden, da sie über die Grundbreite überstehen.In the generic screed according to DE 93 13 162 U, the widening parts firmly attached to the extending screeds when a working width greater than double the basic width is desired. The widening parts must be used for the transport journey be dismantled because they protrude beyond the basic width.
Gemäß DE-A-38 38 158 ist an der Innenseite jeder Ausziehbohle ein Schiebemechanismus vorgesehen, mit dem sich zum Einstellen der doppelten Grundbreite jede Ausziehbohle mit einem zusätzlichen Schiebehub weiter ausfahren und dennoch beim Einfahren bis innerhalb der Grundbreite einstellen lässt. Hierbei ist die Führung der Ausziehbohlen in ausgefahrenem Zustand gefährdet.According to DE-A-38 38 158 there is a sliding mechanism on the inside of each screed provided that each can be used to adjust the double basic width Extend the screed with an additional sliding stroke and still can be adjusted to within the basic width when retracting. Here is the leadership the extending screeds are at risk when extended.
Gemäß DE-C-38 44 905 bzw. EP-A-0 367 893 ist an der Innenseite jeder Ausziehbohle ein Schiebemechanismus vorgesehen, um die Anforderungen an eine übergroße Arbeitsbreite und die Grundbreite für Transportfahrt erfüllen zu können. Es kann die Abstützung der Ausziehbohle in ausgefahrenem Zustand gefährdet sein.According to DE-C-38 44 905 and EP-A-0 367 893, each screed is on the inside a sliding mechanism is provided to meet the oversized requirements Working width and the basic width for transport travel. It the extension of the extending screed can be endangered.
Gemäß EP-A-0 724 040 sind an den Innenenden beider Ausziehbohlen nach innen ragende, in Arbeitsfahrtrichtung zueinander versetzte, einander ergänzende Vorsprünge vorgesehen, die in ausgefahrenem Zustand der Ausziehbohlen eine Überlappung zwischen den Ausziehbohlen und der Grundbohle herstellen und in eingefahrenem Zustand beider Ausziehbohlen ineinandergreifen, so dass bei eingefahrenen Ausziehbohlen die Grundbreite eingehalten wird.According to EP-A-0 724 040, both extending screeds are inward at the inner ends protruding, mutually complementary projections offset in the working direction provided an overlap in the extended state of the extending screeds between the extending screeds and the base screed and in the retracted Interlock the condition of both extending screeds so that when they are retracted Extending screeds the basic width is observed.
Der Erfindung liegt die Aufgabe zugrunde, eine Einbaubohle zu schaffen, die auf baulich einfache Weise bei ausgefahrenen Ausziehbohlen als Arbeitsbreite wenigstens die doppelte Grundbreite einstellen lässt, ohne die Abstützung der Ausziehbohlen in ausgefahrenem Zustand zu beeinträchtigen, und die sich dennoch zum Transport auf die Grundbreite einstellen lässt.The invention has for its object to provide a screed on structurally simple way with extended extending screeds as working width at least double basic width can be set without the support of the extending screeds in the extended state, and which can still be used for transport can be adjusted to the basic width.
Die gestellte Aufgabe wird erfindungsgemäß durch eine Einbaubohle mit den Merkmalen des Anspruchs 1 gelöst.The object is achieved according to the invention by a screed with the features of claim 1 solved.
Die außen an den Ausziehbohlen angeordneten Verbreiterungsteile ermöglichen trotz gegebenenfalls notwendiger Überlappungen zwischen den Ausziehbohlen und der Grundbohle das Einstellen zumindest der doppelten Grundbreite bei ausgefahrenen Ausziehbohlen. Dabei bleibt eine stabile Abstützung der Ausziehbohlen aus der Grundbohle wie bei Einbaubohlen gegeben, die sich nicht auf die doppelte Grundbreite verbreitem lassen. Bei eingefahrenen Ausziehbohlen wird die Grundbreite der Grundbohle eingehalten, weil dann die Verbreiterungsteile in den Schwenkgelenken in Passivlagen verstellbar sind, in denen sie keinen Einfluss auf die Breite der Einbaubohle mehr haben, obwohl die Verbreiterungsteile permanente Bestandteile der Einbaubohle sind. Da die Verbreiterungsteile in ihren Passivlagen keinen Einfluss auf die Breite der Einbaubohle haben, können sie so breit sein, dass sie sogar eine Arbeitsbreite größer als die doppelte Grundbreite der Grundbohle ermöglichen.The widening parts arranged on the outside of the extending screed allow despite any necessary overlaps between the extending planks and the Basic screed setting at least twice the basic width when extended Extending. Thereby a stable support of the extending planks remains Basic screed as given with screeds, which are not twice the basic width let spread. When the screeds are retracted, the basic width of the Base screed adhered to, because then the widening parts in the swivel joints are adjustable in passive positions in which they have no influence on the width of the screed have more, although the widening parts are permanent components of the Screeds are. Since the widening parts in their passive positions have no influence the width of the screed, they can be so wide that they even have a working width larger than twice the basic width of the basic screed.
Gemäß Anspruch 2 lassen sich die Verbreiterungsteile, z.B. zu Reparatur- oder
Wartungsarbeiten, entfernen.According to
Gemäß Anspruch 3 wird der je nach Bauweise der Einbaubohle zur Verfügung stehende
Raum oberhalb der oder hinter den Ausziehbohlen zum Verstauen der Verbreiterungsteile
in den Passivlagen genutzt.According to
Gemäß Anspruch 4 sind die Verbreiterungsteile in ihren Passivlagen sicher verstaut. According to
Gemäß Anspruch 5 ergibt sich eine einfache Handhabung, da die Verbreiterungsteile
rasch und ohne nennenswerte Hilfsmittel in ihre Arbeitslagen an die Ausziehbohlen
oder aus ihren Arbeitslagen in die Passivlagen verstellbar sind.According to
Gemäß Anspruch 6 ist jeder Verbreiterungsteil eine eigenständige, kleine Hilfsbohle
mit zum Einbauen von Einbaugut erforderlicher Ausrüstung.According to
Gemäß Anspruch 7 werden die Verbreiterungsteile mit einfachen Schwenkbewegungen verstellt, wobei ein Scharnier mit einer zum Planum vertikalen Schamierachse eine gute Kraftübertragung beim Verstellen und hohe Stabilität in der Passivlage jedes Verbreiterungsteils gewährleistet.According to claim 7, the widening parts with simple pivoting movements adjusted, whereby a hinge with a hinge axis vertical to the formation good power transmission when adjusting and high stability in the passive position each Widening part guaranteed.
Gemäß Anspruch 8 lassen sich auch Verbreiterungsteile mit in Fahrtrichtung langen
Ausstattungskomponenten einfach in der Passivlage verstauen, da die Schwenkgelenke
entsprechend versetzt sind.According to
Gemäß Anspruch 9 lassen sich die Verbreiterungsteile in den Passivlagen sicher aneinander
abstützen.According to
Gemäß Anspruch 10 können die Seitenschilder zur Gänze oder zumindest zum Teil
für den Transport abgebaut werden.According to
Gemäß Anspruch 11 lassen sich die Verbreiterungsteile an den Ausziehbohlen in den
Arbeitslagen einfach und ohne nennenswerten Zeitaufwand festlegen.According to
Gemäß Anspruch 12 lässt sich als Arbeitsbreite mindestens die doppelte Grundbreite
der Einbaubohle einstellen, gegebenenfalls sogar eine noch größere Arbeitsbreite.
Zweckmäßig sind die Verbreiterungsteile mit ihren Ausstattungskomponenten so
ausgebildet, dass sich damit herkömmliche Einbaubohlen, bei denen die doppelte
Grundbreite nicht einstellbar war, nachträglich umrüsten lassen. According to
Anhand der Zeichnung wird eine Ausführungsform des Erfindungsgegenstandes erläutert. Es zeigen:
- Fig. 1
- eine schematische Draufsicht auf eine Einbaubohle bei maximaler Arbeitsbreite,
- Fig. 2
- eine Ansicht der Einbaubohle von Fig. 1, von links,
- Fig. 3
- eine Ansicht der Einbaubohle von Fig. 1, von rechts, und
- Fig. 4
- eine schematische Draufsicht auf die Einbaubohle der Fig. 1 bis 3 bei minimaler Breite bzw. Grundbreite.
- Fig. 1
- a schematic plan view of a screed at maximum working width,
- Fig. 2
- 1, from the left,
- Fig. 3
- a view of the screed of Fig. 1, from the right, and
- Fig. 4
- is a schematic plan view of the screed of FIGS. 1 to 3 with a minimum width or basic width.
Die Fig. 1 bis 4 unterscheiden sich teilweise durch unterschiedliche Zeichnungs-Maßstäbe.1 to 4 differ in part by different drawing scales.
Eine zum Einbauen von Einbaugut in Arbeitsfahrtrichtung F mittels eines nicht dargestellten
Straßenfertigers schleppbare Einbaubohle B besteht aus einer Grundbohle G
mit der Grundbreite b und zwei Ausziehbohlen A, die seitlich ausfahrbar über nicht im
Detail hervorgehobene Abstütz- und Verschiebeeinrichtungen an der Grundbohle G
gehaltert sind. Die Grundbohle G ist ggfs. - um ein Profil einbauen zu können - in der
Mitte bei 1 geteilt und besteht aus zwei Bohlenteilen, 2, 3, an denen schematisch angedeutete
Halteeinrichtungen 4 für die Ausziehbohlen A endseitig angebracht sind.One for installing installation goods in the working direction F by means of a not shown
The paver's towable screed B consists of a base screed G
with the basic width b and two extending planks A, which can be extended laterally via not in the
Support and displacement devices on the base screed G highlighted in detail
are supported. The basic screed G is - in order to be able to install a profile - in the
Center divided at 1 and consists of two screed parts, 2, 3, on which schematically indicated
Am außenliegenden Ende 5 jeder Ausziehbohle A, z.B. an einer Endplatte 6, ist ein
Verbreiterungsteil T mittels Befestigungselementen 10, vorzugsweise Schnellspannverschlüssen,
lösbar und derart angeordnet, daß beide Ausziehbohlen A in ihren maximal
ausgefahrenen Stellungen, gegebenenfalls mit inneren Überlappungen Ü, eine
Arbeitsbreite ≥ 2xb definieren, die in etwa der doppelten Grundbreite b enspricht, obwohl
die Breite b1 zwischen den Enden 5 der maximal ausgefahrenen Ausziehbohlen
A kleiner als 2xb ist (z.B. um jeweils 0,125 m). At the
Jeder Verbreiterungsteil T gehört einer Verbreiterungseinrichtung V an, die mittels eines
Koppelmechanismus M permanent mit der Ausziehbohle A verbunden ist. Der
Koppelmechanismus M gestattet es, den Verbreiterungsteil T in die in Fig. 1 gezeigte
Arbeitslage zu bringen und in dieser durch die Befestigungselemente 10 an das Ende
5 der Ausziehbohle A anzuschließen, bzw. in eine Passivlage (Fig. 4) zu verstellen, in
der das Ende 5 der Ausziehbohle A frei ist und eingefahren innerhalb der Grundbreite
b der Grundbohle G liegt, ohne daß nach außen störende Komponenten vorstehen.Each widening part T belongs to a widening device V, which by means of a
Coupling mechanism M is permanently connected to the screed A. The
Coupling mechanism M allows the widening part T in that shown in Fig. 1
Bring work position and in this by the
Gemäß Fig. 1, 2 und 3 ist jeder Verbreiterungsteil T als eigenständige kleine Einbaubohle
mit allen zum Einbauen erforderlichen Komponenten ausgebildet. In der Arbeitslage
(Fig. 1) ist ein außenliegender, nach vorne greifender Seitenschild 8 hochkantstehend
mit einem Seitenschild-Träger 9 verbunden, der z.B. einen Halter 21 für eine
Nivellierautomatik, Teile 22 einer Höhenverstellung und einen Fühler 23 für die Nivellierautomatik
trägt. Der Seitenschild 8 ist entweder einteilig oder mehrteilig und läßt
sich zur Gänze oder zum Teil gegebenenfalls abnehmen. Der Verbreiterungsteil T
weist ein Gehäuse 15 auf, das über Befestigungselemente 11 permanent mit dem
Seitenschild-Träger 9 und/oder dem Seitenschild 8 verbunden ist. Der Seitenschild-Träger
9 ist entgegengesetzt zur Arbeitsfahrtrichtung F durch einen Stützarm 12 verlängert
und über einen Querteil 13 an ein Schwenkgelenk 16 angeschlossen, derart,
daß ein abgekröpfter Stützträger 12, 13 gebildet wird. Das Schwenkgelenk 16, vorzugsweise
ein Scharnier mit annähernd vertikaler Schamierachse, ist an einem in etwa
das außenliegende Ende 5 nach hinten verlängernden Ausleger 14 abgestützt. Im
Gehäuse 15 des Verbreiterungsteiles T ist ein Tamper 17 mit einer Tamperheizung
18, ein Glättblech 19 mit einer Glättblechheizung 20 und gegebenenfalls eine nicht
gezeigte Vibrationseinrichtung untergebracht.1, 2 and 3, each widening part T is an independent small screed
trained with all components required for installation. In the work situation
(Fig. 1) is an outer, forward-facing
Der Verbreiterungsteil T ist mit einem Breitenmaß (z.B. ≥ 0,125 m) ausgebildet, mit dem bei ausgefahrener Ausziehbohle A und in Arbeitslage befindlichem Verbreiterungsteil T trotz der Überlappung Ü mindestens die doppelte Grundbreite 2xb einstellbar ist. Da sich der Verbreiterungsteil T mit seinen zugehörigen Komponenten in eine Passivlage (Fig. 4) verstellen läßt, und in dieser Passivlage keinen Einfluß auf die Breite hat, könnte der Verbreiterungsteil T - falls erforderlich - auch breiter als gezeigt ausgebildet sein.The widening part T is formed with a width dimension (e.g. ≥ 0.125 m) with the widening section when the screed A is extended and in the working position T at least twice the basic width 2xb can be set despite the overlap Ü is. Since the widening part T with its associated components in one Passive position (Fig. 4) can be adjusted, and in this passive position no influence on the Width, the widening part T could - if necessary - also wider than shown be trained.
Die Schwenkgelenke 16 sind in Arbeitsfahrtrichtung F zueinander derart versetzt, daß
die in die Passivlagen verstellten Verbreiterungsteile T bzw. ihre Seitenschild-Träger
(9) einander überlappen.The
Zum Verstellen der Verbreiterungsteile T in ihre Passivlagen werden die Befestigungselemente
10 gelöst. Dann wird jeder Verbreiterungsteil T über ca. 270° relativ zur
Ausziehbohle A nach hinten verschwenkt, bis der Seitenschild-Träger 9 in etwa parallel
zur Grundbohle G und zu den Ausziehbohlen A steht. Dann werden, zweckmäßigerweise
an den Seitenschild-Trägern 9, Sicherungselemente 24 festgelegt, so daß
sich die beiden Verbreiterungsteile T in ihren Passivlagen aneinander abstützen und
zusätzlich in den Schwenkgelenken 16 gehalten werden.The fasteners are used to adjust the widening parts T into their
Bei der gezeigten Ausführungsform werden die Verbreiterungsteile T entgegengesetzt zur Arbeitsfahrtrichtung F nach hinten hinter die Ausziehbohlen A geklappt. Es wäre aber auch denkbar, sie in eine nach hinten schräg obenliegende Passivlage zu verstellen, oder sogar nach oben über die Ausziehbohlene zu klappen.In the embodiment shown, the widening parts T are opposed Folded behind the extension screeds A to the working direction F. It would be but it is also conceivable to move them into a passive position that is diagonally at the back, or even fold it up over the screed.
Gegebenenfalls sind Verstelleelemente, z.B. Hydraulikzylinder oder Stellmotoren, vorgesehen, mit denen sich die Verbreiterungsteile T bequem zwischen ihren Arbeitslagen und Passivlagen verstellen lassen. Femer wäre es alternativ denkbar, jeden Verbreiterungsteil T zusätzlich oder alternativ an einer oder beiden Ausziehbohlen A festzulegen. Da die Seitenschilde 8 relativ groß sind, ist es möglich, sie zum Transport der Einbaubohle B zumindest zum Teil abzubauen (gestrichelt in Fig. 4 angedeutet).Adjustment elements, e.g. Hydraulic cylinders or servomotors, provided with which the widening parts T comfortably between their working positions and have passive positions adjusted. Alternatively, everyone would be conceivable Widening part T additionally or alternatively on one or both extending planks A set. Since the side shields 8 are relatively large, it is possible to transport them to dismantle the screed B at least in part (dashed lines in Fig. 4).
Bereits im Betrieb gewesene, normale Einbaubohlen oder Einbaubohlen mit herkömmlichem Konzept lassen sich mit den vorbeschriebenen Verbreiterungseinrichtungen V bequem nachrüsten. Wichtig ist bei dieser baulich einfachen Lösung das Vorsehen bordeigener Verbreiterungseinrichtungen an den außenliegenden Enden der Ausziehbohlen zum Einstellen der größten Arbeitsbreite, wobei die Verbreitungseinrichtungen jedoch in Passivlagen verstellbar sind, in denen sie keinen Einfluß auf die Breite der Einbaubohle mehr haben, sondern in einem für die Breite (Transportbreite) nutzbarer Raum bei der Einbaubbohle verstaut werden können.Normal screeds that have already been in operation or screeds with conventional screeds Concept can be with the above-mentioned widening devices V can be easily retrofitted. This is important with this structurally simple solution Provision of on-board widening devices at the outer ends the extending screeds to adjust the largest working width, the spreading devices however adjustable in passive positions in which they have no influence have the width of the screed more, but in one for the width (transport width) usable space can be stowed away with the screed.
Claims (12)
- A surfacing screed (B) for a road finisher, comprising a base screed (G) defining a base width (b) of the surfacing screed and two extension screeds (A) extendable on each side approximately parallel to the base screed, and widening parts (T) attached to the two extension screeds (A) by coupling mechanisms (M) for adjusting the working width to at least twice the base width (≥ 2 x b) when the extension screeds (A) are fully extended,
characterised in that
each coupling mechanism (M), in the neighbourhood of the outer end (5) of the extension screed (A), has a swivel joint (16) in which the widening part (T) can be swung from a working position extending outwards over the outer end of the extension screed into an inoperative position in which the extension screed (A) is completely retracted and the prolongation part (T) lies within the base width (b) of the surfacing screed (B). - A surfacing screed according to claim 1, characterised in that the coupling mechanism (M) is releasable from the extension screed (A).
- A surfacing screed according to claim 1, characterised in that in the inoperative position the widening part (T) is swung upwards over the extension screed (A) or backwards on the side of the extension screed (A) remote from the base screed (G) and is preferably connected to the extension screed (A).
- A surfacing screed according to claim 1, characterised in that the two widening parts (T) when in the inoperative position can be connected or braced together by a securing device (24).
- A surfacing screed according to claim 1, characterised in that the swivel joint (16) is a hinge with its axis (X) substantially at right angles to the road level and a relative swivelling adjustment range of about 270° for the widening part (T).
- A surfacing screed according to claim 1, characterised in that the widening part (T) comprises a tamper (17), a smoothing plate (19), a side plate (8) and a side-plate holder (9), the side-plate holder (9) is connected to the swivel joint (16), and the swivel joint (16) is mounted on an extension arm (14) of the extension screed (A).
- A surfacing screed according to claim 6, characterised in that the axis of the swivel joint (16) is disposed at a distance behind the extension screed (A), and the side-plate carrier (9) is connected to the swivel joint (16) by at least one bent supporting arm (12, 13).
- A surfacing screed according to claim 1, characterised in that the two swivel joints (16) are offset from one another by at least the width of a widening part (T) in the direction of travel of the surfacing screed (B) during operation.
- A surfacing screed according to claim 6, characterised in that when the widening parts (T) are in the inoperative position the two side-plate holders are braced against one another.
- A surfacing screed according to claim 6, characterised in that the side plate (8) is completely or partly releasably connected to the side-plate holder (9) and/or the widening part (T).
- A surfacing screed according to claim 6, characterised in that in the operating position each widening part (T) is connected, preferably by quick-acting closure means, to the extension screed (A) by the side-plate holder (9) and by fastening elements (10) penetrating into the side-plate holders (9) and the widening part (T).
- A surfacing screed according to claim 1, characterised in that the widening part (T) has a width at least equal to or greater than the base width (b) minus the distance between the outer end (5) of the fully retracted extension screed (A) and the middle of the base screed (G).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29708888U DE29708888U1 (en) | 1997-05-20 | 1997-05-20 | Screed for a paver |
| DE29708888U | 1997-05-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0879918A1 EP0879918A1 (en) | 1998-11-25 |
| EP0879918B1 true EP0879918B1 (en) | 2003-04-02 |
Family
ID=8040557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98106619A Expired - Lifetime EP0879918B1 (en) | 1997-05-20 | 1998-04-09 | Screed for a road paver |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0879918B1 (en) |
| AT (1) | ATE236300T1 (en) |
| DE (2) | DE29708888U1 (en) |
| DK (1) | DK0879918T3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7287931B2 (en) | 2004-05-10 | 2007-10-30 | Bitelli Spa | Extendable paving screed |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT248751Y1 (en) * | 1999-03-02 | 2003-02-12 | Bitelli Spa | VIBRIN-FINISHING MACHINE FOR THE ROAD SURFACING. |
| DE10040761C1 (en) * | 2000-08-19 | 2001-12-06 | Abg Allg Baumaschinen Gmbh | Tamping device for road surfacing machine has side limitation device folded inwards for reducing overall width during transport |
| DE102005047096B3 (en) * | 2005-09-26 | 2007-02-15 | Dieter Schwenninger | Height adjustable side shield e.g. for mounting plank of paver, has two lifting mechanisms which are connected to connecting element and central adjustment device cooperates with connecting element |
| PL2813619T3 (en) * | 2013-06-11 | 2018-10-31 | Joseph Vögele AG | Screed for a road finisher |
| US11859353B2 (en) | 2021-05-25 | 2024-01-02 | Caterpillar Paving Products Inc. | End gate stowage apparatus for screed of a paver |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3838158A1 (en) | 1988-11-10 | 1990-05-17 | Abg Werke Gmbh | SCREED FOR A PAVER |
| DE3838156A1 (en) | 1988-11-10 | 1990-05-17 | Abg Werke Gmbh | SCREED FOR A PAVER |
| DE9313162U1 (en) | 1993-09-01 | 1993-10-28 | Joseph Vögele AG, 68199 Mannheim | Screed |
| DE19501254A1 (en) | 1995-01-17 | 1996-07-18 | Dynapac Gmbh | Screed for a paver |
-
1997
- 1997-05-20 DE DE29708888U patent/DE29708888U1/en not_active Expired - Lifetime
-
1998
- 1998-04-09 DK DK98106619T patent/DK0879918T3/en active
- 1998-04-09 AT AT98106619T patent/ATE236300T1/en not_active IP Right Cessation
- 1998-04-09 DE DE59807692T patent/DE59807692D1/en not_active Expired - Lifetime
- 1998-04-09 EP EP98106619A patent/EP0879918B1/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7287931B2 (en) | 2004-05-10 | 2007-10-30 | Bitelli Spa | Extendable paving screed |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59807692D1 (en) | 2003-05-08 |
| DE29708888U1 (en) | 1997-07-17 |
| ATE236300T1 (en) | 2003-04-15 |
| DK0879918T3 (en) | 2003-07-14 |
| EP0879918A1 (en) | 1998-11-25 |
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