EP0367893B1 - Tamping beam for a road finisher - Google Patents

Tamping beam for a road finisher Download PDF

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Publication number
EP0367893B1
EP0367893B1 EP89103343A EP89103343A EP0367893B1 EP 0367893 B1 EP0367893 B1 EP 0367893B1 EP 89103343 A EP89103343 A EP 89103343A EP 89103343 A EP89103343 A EP 89103343A EP 0367893 B1 EP0367893 B1 EP 0367893B1
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EP
European Patent Office
Prior art keywords
cheek
extension
screed
auxiliary
guide rods
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
Application number
EP89103343A
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German (de)
French (fr)
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EP0367893A1 (en
Inventor
Dirk Heims
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ABG Werke GmbH
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ABG Werke GmbH
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Publication date
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Application filed by ABG Werke GmbH filed Critical ABG Werke GmbH
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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
    • E01C19/42—Machines for imparting a smooth finish to freshly-laid paving courses other than by rolling, tamping or vibrating
    • 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 for a paver.
  • Asphalt pavers are usually provided with a base screed and with two screeds, the latter being extendable to one side of the paver according to the width of the material to be installed. However, widening to twice the width of the base screed is prevented by the necessary guidance and support of the extension screeds.
  • a screed for a paver which comprises a centrally divided base screed, the respective left or right half of which has a central standing cheek, on which an extension cylinder is attached on each side, which is attached to one attacks the outer movable cheek of an extension screed to extend it.
  • telescopic rods for guiding the extending screed parallel to the cylinder axis are provided, which engage the outer movable cheek of the extending screed and are guided through an outer cheek that is firmly connected to the basic screed.
  • the two telescopic rods each have a stop, up to which they can be displaced in the direction of extension of the extension screed up to the cheek firmly connected to the base screed.
  • the free ends of the two telescopic rods are connected to one another by a connecting piece which is guided in the extension direction of the base screed independently of the inner movable cheek of the extension screed.
  • the cheek which is firmly connected to the base screed, hinders the extension of the extension screed to half the width of the base screed, so that the base screed cannot be optimally widened.
  • the object of the invention is to provide a screed for a paver which enables it to be widened practically by half the width of the base screed on each side.
  • a screed for a road paver comprising a centrally divided base screed, the respective left or right half of which has a central standing cheek, on which an extension cylinder is attached on each side, which has an inner movable cheek of an extending screed for the lateral extension of the Base screed leads and engages on the outer movable cheek to extend, wherein each of the outer cheek engaging, designed as telescopic rods guide rods are provided parallel to the cylinder axis, which are guided by an outer cheek firmly connected to the base screed, the guide rods each on the attack the inner cheek and the extending screeds are each connected to an auxiliary cheek, which is located on the side of the inner cheek of the extending screed facing the outer cheek, the auxiliary cheeks each being attached to the respective inner movable cheek to the cylinder hse parallel, outwardly extending auxiliary guide are guided and held, the auxiliary cheek can be extended unhindered by the cheek of the base board to such an extent that its inside is flush with the
  • the auxiliary guide comprises at least two guide rods, the guide rods being able to be arranged offset from one another in the vertical direction.
  • Fig. 1 shows a top view of a screed schematically and in sections.
  • FIG. 2 shows a section along the line II-II of FIG. 1.
  • the screed shown comprises a basic screed 1 of a predetermined width, which is arranged on a paver and is connected to two central upright cheeks 2, the main planes of which extend in the direction of travel of the paver.
  • a laterally outwardly extending telescopic cylinder 3 is attached, these are with pressure medium lines, not shown connected to their retraction or extension.
  • the two telescopic cylinders 3 are used to extend extending screeds 4, which are arranged behind the basic screed 1 in the retracted state and have half the width of the basic screed 1.
  • the extending screeds 4 are each provided with an outer movable cheek 5, which the respective telescopic cylinder 3 engages, and with an inner auxiliary cheek 6.
  • the outer movable cheek 5 is connected to an inner movable cheek 8 via telescopic rods 7.
  • the cheek 8 receives a bearing bush 9, which engages around the telescopic cylinder 3 in the region of its outer tube 3 'and ensures the guidance of the cheek 8 through the telescopic cylinder 3.
  • the telescopic cylinder 3 is fixedly connected at the free end of its outer tube 3 'via a flange 3' to an adjacent sleeve 10, which in turn is connected to a cheek 11 attached to the base screed 1 and formed from two parallel plates.
  • the flange 3 ⁇ is expediently set back by the thickness of the cheek 5 with respect to the outer edge of the base screed 1, so that when the extendable screed 4 is retracted, the outer edge thereof is flush with that of the base screed 1.
  • the cheek 11 carries in front of and behind the telescopic cylinder 3 a guide sleeve 12 for each of the telescopic rods 7, the axes of which run parallel to the axis of the telescopic cylinder 3.
  • At least two guide rods 13 or an equivalent other guide which extend in the direction of the outer cheek 5 parallel to the axis of the telescopic cylinder 3, are fastened to the inner movable cheek 8.
  • the auxiliary cheek 6 has two guide sleeves 14 which grip around the guide rods 13.
  • the auxiliary cheek 6 and the guide rods 13 are arranged below the cheek 11, so that the auxiliary cheek 6 practically comes into contact with the inner cheek 8 when the extending screed 4 is retracted. In this position, the telescopic rods 7 are retracted.
  • the axes of the telescopic cylinder 3 and the telescopic rods 7 are expediently offset from one another in the vertical direction, just like the axes of the guide rods 13, in order to achieve greater stability and rigidity.
  • the auxiliary cheek 6 guided by the guide rods 13, it is possible to extend the extending screeds 4 essentially by half the width of the basic screed 1 and thus the basic screed 1 in its Double width. As can be seen from FIG. 2, the auxiliary cheek 6 can be moved under the cheek 11, so that the extension and retraction of the extending screed 4 is not impaired.
  • the telescopic cylinder 3 can have a sequential circuit for successively extending or retracting its sections, but this can also be dispensed with. Then the section with the least friction moves in or out first.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)

Description

Die Erfindung betrifft eine Einbaubohle für einen Straßenfertiger.The invention relates to a screed for a paver.

Straßenfertiger werden üblicherweise mit einer Grundbohle sowie mit Zwei Ausfahrbohlen versehen, wobei letztere jeweils nach einer Seite des Straßenfertigers entsprechend der Breite des einzubauenden Materials ausfahrbar sind. Jedoch wird hierbei einer Verbreiterung auf die doppelte Breite der Grundbohle durch die notwendige Führung und Abstützung der Ausfahrbohlen verhindert.Asphalt pavers are usually provided with a base screed and with two screeds, the latter being extendable to one side of the paver according to the width of the material to be installed. However, widening to twice the width of the base screed is prevented by the necessary guidance and support of the extension screeds.

So ist aus der GB-A-1 570 839 eine Einbaubohle für einen Strassenfertiger bekannt, die eine mittig geteilte Grundbohle umfaßt, deren jeweilige linke oder rechte Hälfte eine mittlere stehende Wange aufweist, an der an jeder Seite ein Ausfahrzylinder angebracht ist, der an einer äußeren beweglichen Wange einer Ausfahrbohle zum Ausfahren von dieser angreift. Außerdem sind hierbei Teleskopstangen zur Führung der Ausfahrbohle parallel zur Zylinderachse vorgesehen, die an der äußeren beweglichen Wange der Ausfahrbohle angreifen und durch eine äußere, mit der Grundbohle fest verbundene Wange geführt sind. Die beiden Teleskopstangen weisen jeweils einen Anschlag auf, bis zu dem sie bis zu der mit der Grundbohle fest verbundenen Wange in Ausfahrrichtung der Ausfahrbohle verschiebbar sind. Die freien Enden der beiden Teleskopstangen sind hierbei durch ein Verbindungsstück miteinander verbunden, das in Ausfahrrichtung von der Grundbohle unabhängig von der inneren beweglichen Wange der Ausfahrbohle geführt ist. Hierbei behindert die mit der Grundbohle fest verbundene Wange ein Ausfahren der Ausfahrbohle auf die halbe Breite der Grundbohle, so daß eine optimale Verbreiterung der Grundbohle nicht möglich ist.Thus, from GB-A-1 570 839 a screed for a paver is known, which comprises a centrally divided base screed, the respective left or right half of which has a central standing cheek, on which an extension cylinder is attached on each side, which is attached to one attacks the outer movable cheek of an extension screed to extend it. In addition, telescopic rods for guiding the extending screed parallel to the cylinder axis are provided, which engage the outer movable cheek of the extending screed and are guided through an outer cheek that is firmly connected to the basic screed. The two telescopic rods each have a stop, up to which they can be displaced in the direction of extension of the extension screed up to the cheek firmly connected to the base screed. The free ends of the two telescopic rods are connected to one another by a connecting piece which is guided in the extension direction of the base screed independently of the inner movable cheek of the extension screed. Here, the cheek, which is firmly connected to the base screed, hinders the extension of the extension screed to half the width of the base screed, so that the base screed cannot be optimally widened.

Aufgabe der Erfindung ist es, eine Einbaubohle für einen Strassenfertiger zu schaffen, die es ermöglicht, nach jeder Seite praktisch um die halbe Breite der Grundbohle verbreitert zu werden.The object of the invention is to provide a screed for a paver which enables it to be widened practically by half the width of the base screed on each side.

Diese Aufgabe wird durch eine Einbaubohle für einen Straßenfertiger gelöst, umfassend eine mittig geteilte Grundbohle, deren jeweilige linke oder rechte Hälfte eine mittlere stehende Wange aufweist, an der an jeder Seite ein Ausfahrzylinder angebracht ist, der eine innere bewegliche Wange einer Ausfahrbohle zur seitlichen Verlängerung der Grundbohle führt und an deren äußerer beweglicher Wange zum Ausfahren angreift, wobei jeweils an der äußeren Wange angreifende, als Teleskopstangen ausgebildete Führungsstangen parallel zur Zylinderachse vorgesehen sind, die durch eine äußere, mit der Grundbohle fest verbundene Wange geführt sind, wobei die Führungsstangen jeweils an der inneren Wange angreifen und die Ausfahrbohlen jeweils mit einer Hilfswange, die sich auf der der äußeren Wange zugewandten Seite der inneren Wange der Ausfahrbohle befindet, verbunden sind, wobei die Hilfswangen jeweils durch eine an der jeweiligen inneren beweglichen Wange befestigten, zur Zylinderachse parallelen, sich auswärts erstreckenden Hilfsführung geführt und gehalten sind, wobei die Hilfswange ungehindert von der Wange der Grundbohle soweit ausfahrbar ist, daß ihre Innenseite mit der Außenseite der Grundbohle fluchtet.This task is solved by a screed for a road paver, comprising a centrally divided base screed, the respective left or right half of which has a central standing cheek, on which an extension cylinder is attached on each side, which has an inner movable cheek of an extending screed for the lateral extension of the Base screed leads and engages on the outer movable cheek to extend, wherein each of the outer cheek engaging, designed as telescopic rods guide rods are provided parallel to the cylinder axis, which are guided by an outer cheek firmly connected to the base screed, the guide rods each on the attack the inner cheek and the extending screeds are each connected to an auxiliary cheek, which is located on the side of the inner cheek of the extending screed facing the outer cheek, the auxiliary cheeks each being attached to the respective inner movable cheek to the cylinder hse parallel, outwardly extending auxiliary guide are guided and held, the auxiliary cheek can be extended unhindered by the cheek of the base board to such an extent that its inside is flush with the outside of the base board.

Hierbei ist es zweckmäßig, wenn die Hilfsführung mindestens zwei Führungsstangen umfaßt, wobei die Führungsstangen in Vertikalrichtung gegeneinander versetzt angeordnet sein können.In this case, it is expedient if the auxiliary guide comprises at least two guide rods, the guide rods being able to be arranged offset from one another in the vertical direction.

Die Erfindung wird nachstehend anhand eines in den beigefügten Abbildungen dargestellten Ausführungsbeispiels näher erläutert.The invention is explained below with reference to an embodiment shown in the accompanying figures.

Fig. 1 zeigt in Draufsicht schematisiert und ausschnittweise eine Einbaubohle.Fig. 1 shows a top view of a screed schematically and in sections.

Fig. 2 zeigt einen Schnitt längs der Linie II-II von Fig. 1.FIG. 2 shows a section along the line II-II of FIG. 1.

Die dargestellte Einbaubohle umfaßt eine Grundbohle 1 vorbestimmter Breite, die an einem Straßenfertiger angeordnet und mit zwei mittleren stehenden Wangen 2 verbunden ist, deren Hauptebenen sich in Fahrtrichtung des Straßenfertigers erstrecken. An jeder Seite der mittleren Wange 2 ist ein sich seitlich nach außen erstreckender Teleskopzylinder 3 befestigt, diese sind mit nicht dargestellten Druckmittelleitungen zu deren Ein- bzw. Ausfahren verbunden. Die beiden Teleskopzylinder 3 dienen zum Ausfahren von Ausfahrbohlen 4, die in eingefahrenem Zustand hinter der Grundbohle 1 angeordnet sind und die halbe Breite der Grundbohle 1 besitzen.The screed shown comprises a basic screed 1 of a predetermined width, which is arranged on a paver and is connected to two central upright cheeks 2, the main planes of which extend in the direction of travel of the paver. On each side of the middle cheek 2 a laterally outwardly extending telescopic cylinder 3 is attached, these are with pressure medium lines, not shown connected to their retraction or extension. The two telescopic cylinders 3 are used to extend extending screeds 4, which are arranged behind the basic screed 1 in the retracted state and have half the width of the basic screed 1.

Die Ausfahrbohlen 4 sind jeweils mit einer äußeren beweglichen Wange 5, an der der jeweilige Teleskopzylinder 3 angreift, und mit einer inneren Hilfswange 6 versehen. Die äußere bewegliche Wange 5 ist über Teleskopstangen 7 mit einer inneren beweglichen Wange 8 verbunden. Die Wange 8 nimmt eine Lagerbuchse 9 auf, die den Teleskopzylinder 3 im Bereich seines Außenrohrs 3′ umgreift und die Führung der Wange 8 durch den Teleskopzylinder 3 gewährleistet. Der Teleskopzylinder 3 ist am freien Ende seines Außenrohrs 3′ über einen Flansch 3˝ mit einer benachbarten Muffe 10 fest verbunden, die ihrerseits mit einer aus zwei parallelen Platten gebildeten, an der Grundbohle 1 befestigten Wange 11 verbunden ist. Der Flansch 3˝ ist gegenüber dem Außenrand der Grundbohle 1 zweckmäßigerweise um die Stärke der Wange 5 zurückversetzt, damit bei eingefahrener Ausfahrbohle 4 die Außenkante hiervon mit derjenigen der Grundbohle 1 fluchtet.The extending screeds 4 are each provided with an outer movable cheek 5, which the respective telescopic cylinder 3 engages, and with an inner auxiliary cheek 6. The outer movable cheek 5 is connected to an inner movable cheek 8 via telescopic rods 7. The cheek 8 receives a bearing bush 9, which engages around the telescopic cylinder 3 in the region of its outer tube 3 'and ensures the guidance of the cheek 8 through the telescopic cylinder 3. The telescopic cylinder 3 is fixedly connected at the free end of its outer tube 3 'via a flange 3' to an adjacent sleeve 10, which in turn is connected to a cheek 11 attached to the base screed 1 and formed from two parallel plates. The flange 3˝ is expediently set back by the thickness of the cheek 5 with respect to the outer edge of the base screed 1, so that when the extendable screed 4 is retracted, the outer edge thereof is flush with that of the base screed 1.

Die Wange 11 trägt vor und hinter dem Teleskopzylinder 3 jeweils eine Führungshülse 12 für jeweils eine der Teleskopstangen 7, deren Achsen parallel zur Achse des Telekopzylinders 3 verlaufen.The cheek 11 carries in front of and behind the telescopic cylinder 3 a guide sleeve 12 for each of the telescopic rods 7, the axes of which run parallel to the axis of the telescopic cylinder 3.

An der inneren beweglichen Wange 8 sind mindestens zwei Führungsstangen 13 oder eine gleichwertige andere Führung, die sich in Richtung zur äußeren Wange 5 parallel zur Achse des Teleskopzylinders 3 erstrecken, befestigt. Die Hilfswange 6 besitzt zwei Führungshülsen 14, die die Führungsstangen 13 umgreifen. Die Hilfswange 6 und die Führungsstangen 13 sind unterhalb der Wange 11 angeordnet, so daß die Hilfswange 6 im eingefahrenen Zustand der Ausfahrbohle 4 praktisch in Anlage an die innere Wange 8 gelangt. In dieser Position sind die Teleskopstangen 7 eingezogen.At least two guide rods 13 or an equivalent other guide, which extend in the direction of the outer cheek 5 parallel to the axis of the telescopic cylinder 3, are fastened to the inner movable cheek 8. The auxiliary cheek 6 has two guide sleeves 14 which grip around the guide rods 13. The auxiliary cheek 6 and the guide rods 13 are arranged below the cheek 11, so that the auxiliary cheek 6 practically comes into contact with the inner cheek 8 when the extending screed 4 is retracted. In this position, the telescopic rods 7 are retracted.

Die Achsen des Teleskopzylinders 3 und der Teleskopstangen 7 sind zweckmäßigerweise ebenso wie die Achsen der Führungstangen 13 zur Erzielung einer größeren Stabilität und Steifigkeit in vertikaler Richtung zueinander versetzt.The axes of the telescopic cylinder 3 and the telescopic rods 7 are expediently offset from one another in the vertical direction, just like the axes of the guide rods 13, in order to achieve greater stability and rigidity.

Infolge der durch die Führungstangen 13 geführten Hilfswange 6 ist es möglich, die Ausfahrbohlen 4 im wesentlichen um die halbe Breite der Grundbohle 1 auszufahren und damit die Grundbohle 1 in ihrer Breite zu verdoppeln. Wie sich aus Fig. 2 ergibt, ist die Hilfswange 6 unter der Wange 11 hindurch beweglich, so daß das Ein- und Ausfahren der Ausfahrbohle 4 nicht beeinträchtigt wird.As a result of the auxiliary cheek 6 guided by the guide rods 13, it is possible to extend the extending screeds 4 essentially by half the width of the basic screed 1 and thus the basic screed 1 in its Double width. As can be seen from FIG. 2, the auxiliary cheek 6 can be moved under the cheek 11, so that the extension and retraction of the extending screed 4 is not impaired.

Der Telekopzylinder 3 kann eine Folgeschaltung zum aufeinanderfolgenden Auseinander- bzw. Einfahren seiner Abschnitte aufweisen, jedoch kann darauf auch verzichtet werden. Dann fährt der Abschnitt mit der geringsten Reibung zuerst ein bzw. aus.The telescopic cylinder 3 can have a sequential circuit for successively extending or retracting its sections, but this can also be dispensed with. Then the section with the least friction moves in or out first.

Claims (3)

  1. Installation beam for a road-surfacing machine, comprising a centrally divided main beam (1), the respective left or right half of which has a standing central cheek (2) on which there is mounted on each side an extension cylinder (3) which guides an inner movable cheek (8) of an extension beam (4) for the lateral extension of the main beam (1), and engages with the outer movable cheek (5) of the extension beam for extension, guide rods (7), in the form of telescopic rods, each engaging with the outer cheek (5), being provided parallel to the cylinder axis, and being guided by means of an outer cheek (11) rigidly connected to the main beam (1), the guide rods (7) each engaging with the inner cheek (8) and the extension beams (4) each being connected to an auxiliary cheek (6) which is located on the side, facing towards the outer cheek (5), of the inner cheek (8) of the extension beam (4), the auxiliary cheeks (6) each being guided and retained by means of an auxiliary guide means (13, 14), arranged parallel to the cylinder axis and extending outwards, which is attached to the respective inner movable cheek (8), the auxiliary cheek (6) being arranged to be extendable, unhindered by the cheek (11) of the main beam (1), so far that its inner side is flush with the outside of the main beam (1).
  2. Installation beam according to claim 1, characterised in that the auxiliary guide means (13, 14) comprises at least two guide rods.
  3. Installation beam according to claim 2, characterised in that the guide rods (13) are arranged so that they are offset in a vertical direction with respect to each other.
EP89103343A 1988-11-10 1989-02-25 Tamping beam for a road finisher Expired - Lifetime EP0367893B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3838156A DE3838156A1 (en) 1988-11-10 1988-11-10 SCREED FOR A PAVER
DE3838156 1988-11-10

Publications (2)

Publication Number Publication Date
EP0367893A1 EP0367893A1 (en) 1990-05-16
EP0367893B1 true EP0367893B1 (en) 1992-10-21

Family

ID=6366901

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89103343A Expired - Lifetime EP0367893B1 (en) 1988-11-10 1989-02-25 Tamping beam for a road finisher

Country Status (5)

Country Link
US (1) US4986695A (en)
EP (1) EP0367893B1 (en)
JP (1) JP2721547B2 (en)
DE (4) DE3844905C2 (en)
ES (1) ES2035393T3 (en)

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Publication number Priority date Publication date Assignee Title
IT1271901B (en) * 1992-01-09 1997-06-10 Dynapac Gmbh SYSTEM OF BUILT-IN TABLES FOR ROAD COVER FINISHERS
DE4208883C2 (en) * 1992-01-09 1998-11-05 Svedala Strassenfertiger Gmbh Screed for pavers
US5222829A (en) * 1992-03-13 1993-06-29 Caterpillar Paving Products Inc. Screed assembly for an asphalt paving machine
DE4406470C2 (en) * 1994-02-23 1997-01-16 Svedala Strasenfertiger Gmbh Device for the continuous adjustment of the working widths of pavers, especially black pavers
DE4420016A1 (en) * 1994-06-08 1995-12-14 Dynapac Gmbh Screed for a paver
US5924818A (en) * 1997-03-27 1999-07-20 Blaw-Knox Construction Equipment Corp. Wear resistant slope adjusting assembly for a screed
DE29708888U1 (en) 1997-05-20 1997-07-17 Joseph Vögele AG, 68163 Mannheim Screed for a paver
DE19827902B4 (en) * 1998-06-23 2008-03-13 Joseph Voegele Ag screed
ITUD20020180A1 (en) * 2002-08-14 2004-02-15 Marini Spa ROAD VIBRO-FINISHER FOR DRAWING CONGLOMERATES
DE602004027003D1 (en) 2004-05-10 2010-06-17 Caterpillar Paving Prod Extending
EP2218824B1 (en) * 2009-02-16 2012-12-26 Joseph Vögele AG Screed
US11105048B2 (en) * 2018-10-17 2021-08-31 Caterpillar Paving Products Inc. Screed dual carriage extender tube orientation

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Publication number Priority date Publication date Assignee Title
DE2621558A1 (en) * 1976-05-14 1977-12-01 Hoes Maschf Klaus Gerd Adjustable width road surfacing machine board - has movable connection between auxiliary boards, telescopic guideway tubes and main board
GB1570839A (en) * 1977-11-11 1980-07-09 Hoes K G Devices for adjusting the working width of road making machines
US4129399A (en) * 1977-11-14 1978-12-12 Firma Klaus-Gerd Hoes Mounting bars for road making machines
GB2024900A (en) * 1978-07-07 1980-01-16 Blaw Knox Ltd Road finishers
US4272213A (en) * 1979-07-10 1981-06-09 Blaw Knox Limited Extendible screeds
US4379653A (en) * 1981-06-01 1983-04-12 White Consolidated Industries, Inc. Asphalt paver with telescoping screed
CH657168A5 (en) * 1982-11-16 1986-08-15 Domenico Domenighetti ROAD SURFACE FINISHING MACHINE WITH SCRAPER EQUIPPED WITH EXTENDABLE SIDE ELEMENTS THAT ALLOW THE ENLARGEMENT OF THE COAT TO BE APPLIED ON THE GROUND.

Also Published As

Publication number Publication date
DE58902512D1 (en) 1992-11-26
JPH02136403A (en) 1990-05-25
ES2035393T3 (en) 1993-04-16
DE8915919U1 (en) 1992-02-06
DE3844905C2 (en) 1994-04-21
EP0367893A1 (en) 1990-05-16
US4986695A (en) 1991-01-22
DE3838156A1 (en) 1990-05-17
JP2721547B2 (en) 1998-03-04

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