EP0369095A1 - Poutre dameuse pour finisseuse - Google Patents

Poutre dameuse pour finisseuse Download PDF

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Publication number
EP0369095A1
EP0369095A1 EP89103344A EP89103344A EP0369095A1 EP 0369095 A1 EP0369095 A1 EP 0369095A1 EP 89103344 A EP89103344 A EP 89103344A EP 89103344 A EP89103344 A EP 89103344A EP 0369095 A1 EP0369095 A1 EP 0369095A1
Authority
EP
European Patent Office
Prior art keywords
screed
cylinder
cheek
guide
extension
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.)
Granted
Application number
EP89103344A
Other languages
German (de)
English (en)
Other versions
EP0369095B1 (fr
Inventor
Dirk Heims
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABG Werke GmbH
Original Assignee
ABG Werke GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ABG Werke GmbH filed Critical ABG Werke GmbH
Publication of EP0369095A1 publication Critical patent/EP0369095A1/fr
Application granted granted Critical
Publication of EP0369095B1 publication Critical patent/EP0369095B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 according to the preamble of claim 1.
  • Asphalt pavers are usually provided with a basic screed as well as with two extending 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.
  • the object of the invention is to provide a screed according to the preamble of claim 1, which makes it possible to widen practically half the width of the base screed on each side.
  • 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 extending extension cylinder 3 is fastened, these are connected with pressure medium lines (not shown) for their entry and exit the.
  • the two extension cylinders 3 are used to extend extension screeds 4, which are arranged behind the base screed 1 in the retracted state and have half the width of the base screed 1.
  • the extending screeds 4 each comprise an outer movable cheek 5, on which the respective extending cylinder 3 engages, and an inner, movable cheek 8 connected therewith via at least one guide rod 6, which is guided by an outer cheek 7 firmly connected to the base screed 1
  • the cheek 8 receives a bearing bush 9, which engages around the extension cylinder 3 and ensures that the cheek 8 is guided by the extension cylinder 3.
  • the extension cylinder 3 is fixedly connected to the adjacent cheek 7 at the outer end via a flange 3 '.
  • the flange 3 ' is advantageously set back from the outer edge of the base screed 1 by the thickness of the cheek 5 so that when the extendable screed 4 is retracted, the outer edge thereof is aligned with that of the base screed 1.
  • At least two guide rods 10, 11 are arranged between the inner and outer movable cheeks 5, 8 parallel to the axis of the extension cylinder 3 outside the area of the outer fixed cheek 7.
  • the axes of the extension cylinder 3 and the guide rods 6 are expediently offset from one another in the vertical direction, just like the axes of the guide rods 10, 11, in order to achieve greater stability and rigidity.
  • the guide rods 10, 11 guide two guide cheeks 12 arranged at a distance from one another and connected to the extending screed 4, the guide rod 11 being surrounded by a cylinder 13 connected to the guide cheeks 12.
  • the guide rod 11 also carries an annular piston 14, while the cylinder 13 is provided on both sides to the annular piston 14 with pressure medium supply lines 15 for acting on both sides of the annular piston 14 to move the cylinder 13 and thus the extension screed 4 relative to the guide rod 11.
  • the stroke H of the cylinder 13 corresponds to the distance between the inside of the inner cheek 8 and the outside of the base screed (1) in the extended state of the extendable screed 4 plus half the thickness of the middle cheek 2, so that the extendable screed 4 is exactly half the width of the base screed 1 can be extended.
  • the cylinder 13 has at both ends in each case an inwardly directed annular stop 16 encompassing the guide rod 11 with a smaller diameter than the inside diameter of the cylinder 13.
  • the stop 16 located on the outside end of the cylinder 13 acts with the annular piston 14 to limit the stroke of the Cylinder 13 in the direction of retraction together. So that the cylinder 13 can extend from the retracted position, the corresponding pressure medium supply line 15 opens in the area between the stop 16 and the cylinder inner wall.
  • the guide rod 11 carries a further ring 17, which serves as a stop to limit the stroke of the cylinder 13 in the extension direction and cooperates with the stop 16 of the cylinder 13 at its inward end.
  • the ring 17 and the stop 16 have the same outside diameter.
  • the cheek 5 can also be used instead of the ring 17 as a stop for the movement of the cylinder 13 relative to the guide rod 11.
  • the cheek 8 can be used instead of the annular piston 14 as a stop in the retracting direction.
  • a sequential circuit for successive actuation can be provided for the two cylinders 3, 13, but this can also be dispensed with. Then the cylinder with the least friction moves in or out first.
  • the guide cheeks 12 are expediently guided via bearing bushes 18 opposite the guide rod or rods 10.
  • the cheeks 7, 8 and 12 are designed such that the guide rods 6 and the cylinder 3 only extend between the fixed cheek 7 and the outer movable cheek 5, while the guide rods 10, 11 only extend between the movable cheeks 5, 8 and the movement of the guide cheeks 12 is not hindered by the cheek 7. Likewise, retracting the screed 4 is not hindered by the outer cheek 5.
  • the cheeks 2 are not absolutely necessary in this solution, since the forces can be taken over by the outer fixed cheek 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)
EP89103344A 1988-11-10 1989-02-25 Poutre dameuse pour finisseuse Expired - Lifetime EP0369095B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3838157 1988-11-10
DE3838157A DE3838157A1 (de) 1988-11-10 1988-11-10 Einbaubohle fuer einen strassenfertiger

Publications (2)

Publication Number Publication Date
EP0369095A1 true EP0369095A1 (fr) 1990-05-23
EP0369095B1 EP0369095B1 (fr) 1991-12-18

Family

ID=6366902

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89103344A Expired - Lifetime EP0369095B1 (fr) 1988-11-10 1989-02-25 Poutre dameuse pour finisseuse

Country Status (5)

Country Link
US (1) US4991995A (fr)
EP (1) EP0369095B1 (fr)
JP (1) JP2721564B2 (fr)
DE (2) DE3838157A1 (fr)
ES (1) ES2028387T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0686729A3 (fr) * 1994-06-08 1996-02-28 Dynapac Gmbh Poutre lisseuse pour finisseur de chaussée

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2681885B1 (fr) * 1991-10-01 1998-09-04 Colas Sa Dispositif d'epandage d'une emulsion d'accrochage d'enrobes butumineux ou de fluides analogues, et machine de construction de chaussees comportant un tel dispositif.
DE4208883C2 (de) * 1992-01-09 1998-11-05 Svedala Strassenfertiger Gmbh Einbaubohle für Straßendeckenfertiger
US5222829A (en) * 1992-03-13 1993-06-29 Caterpillar Paving Products Inc. Screed assembly for an asphalt paving machine
DE19827902B4 (de) * 1998-06-23 2008-03-13 Joseph Voegele Ag Einbaubohle
DE602004027003D1 (de) * 2004-05-10 2010-06-17 Caterpillar Paving Prod Ausziehbohle
US11105048B2 (en) * 2018-10-17 2021-08-31 Caterpillar Paving Products Inc. Screed dual carriage extender tube orientation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2024900A (en) * 1978-07-07 1980-01-16 Blaw Knox Ltd Road finishers
GB1570839A (en) * 1977-11-11 1980-07-09 Hoes K G Devices for adjusting the working width of road making machines
EP0109639A1 (fr) * 1982-11-16 1984-05-30 Domenico Domenighetti Machine finisseuse de routes avec une lisseuse améliorée

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1014783A (en) * 1974-10-12 1977-08-02 Ernst-August Schrader Device for the adjustment of the working width of road finishers
US3957384A (en) * 1974-11-12 1976-05-18 Bower Industries, Inc. Screed extensions for paving machines
JPS5830815Y2 (ja) * 1979-05-14 1983-07-07 株式会社新潟鐵工所 アスフアルトフイニツシヤ等における敷きならし装置
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
US4702642A (en) * 1986-07-25 1987-10-27 Cedarapids, Inc. Extensible screed assembly for a bituminous paver

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1570839A (en) * 1977-11-11 1980-07-09 Hoes K G Devices for adjusting the working width of road making machines
GB2024900A (en) * 1978-07-07 1980-01-16 Blaw Knox Ltd Road finishers
EP0109639A1 (fr) * 1982-11-16 1984-05-30 Domenico Domenighetti Machine finisseuse de routes avec une lisseuse améliorée

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0686729A3 (fr) * 1994-06-08 1996-02-28 Dynapac Gmbh Poutre lisseuse pour finisseur de chaussée
US5725325A (en) * 1994-06-08 1998-03-10 Svedala Strassenfertiger Gmbh Laying plank for a road finisher

Also Published As

Publication number Publication date
DE58900593D1 (de) 1992-01-30
EP0369095B1 (fr) 1991-12-18
JP2721564B2 (ja) 1998-03-04
DE3838157A1 (de) 1990-05-17
ES2028387T3 (es) 1992-07-01
US4991995A (en) 1991-02-12
JPH02178404A (ja) 1990-07-11

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