EP0678132A1 - Dame de mise en place - Google Patents

Dame de mise en place

Info

Publication number
EP0678132A1
EP0678132A1 EP95900686A EP95900686A EP0678132A1 EP 0678132 A1 EP0678132 A1 EP 0678132A1 EP 95900686 A EP95900686 A EP 95900686A EP 95900686 A EP95900686 A EP 95900686A EP 0678132 A1 EP0678132 A1 EP 0678132A1
Authority
EP
European Patent Office
Prior art keywords
tamper bar
screed
band
shaft
screed according
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
EP95900686A
Other languages
German (de)
English (en)
Other versions
EP0678132B1 (fr
Inventor
Alfred Ulrich
Erich Resch
Roman Munz
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.)
Joseph Voegele AG
Original Assignee
Joseph Voegele AG
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 Joseph Voegele AG filed Critical Joseph Voegele AG
Publication of EP0678132A1 publication Critical patent/EP0678132A1/fr
Application granted granted Critical
Publication of EP0678132B1 publication Critical patent/EP0678132B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • E01C19/48—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 laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
    • E01C19/4833—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 laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with tamping or vibrating means for consolidating or finishing, e.g. immersed vibrators, with or without non-vibratory or non-percussive pressing or smoothing means
    • E01C19/4853—Apparatus designed for railless operation, e.g. crawler-mounted, provided with portable trackway arrangements
    • E01C19/486—Apparatus designed for railless operation, e.g. crawler-mounted, provided with portable trackway arrangements with non-vibratory or non-percussive pressing or smoothing means; with supplemental elements penetrating the paving to work the material thereof

Definitions

  • the invention relates to a screed of the type specified in the preamble of claim 1.
  • the tamper bar in a screed is usually caused to do its lifting movements by an eccentric drive, it carries out tilting or transverse movements at the same time during the up and down lifting movements. For this reason, the lower opening of the shaft in the screed in which the tamper bar works must be designed with an oversize in the working direction. Since the rear of the tamper bar is supported on a wear strip, a gap is created between its front and the front opening edge of the shaft through which parts of the processed installation material penetrate, which after cooling, e.g. during a work break or a loading break, solidify and finally block the compacting device of the screed formed by the tamper bar and the drive.
  • the invention has for its object to provide a screed of the type mentioned, in which the blocking of the tamper bar is avoided in a structurally simple manner.
  • the wiper seal that is permanently in contact with the tamper bar ensures that no more components that ultimately block the tamper bar rise from the processed installation material. Thanks to its elastic flexibility, the wiper seal is able to follow the transverse movements of the tamper bar without the sealing Giving up effect. Portions of the goods to be stuck to the tamper bar are continuously stripped off when the tamper bar moves upward relative to the stripping seal.
  • This embodiment is structurally simple, reliable, low maintenance and not susceptible to faults.
  • the tape extends with its lower edge into the area of the front lower edge of the tamper bar, only a small area of the front of the tamper bar comes into contact with the installation goods, so that little or no installation goods adhere to what supports the effect of the wiper seal.
  • the active part of the wiper seal is supported during operation.
  • An important and expedient embodiment is also apparent from claim 5.
  • the front wall is usually extended down to the tamper bar to shield it and guide the installation material. In this embodiment, however, the front wall is shortened with its so-called pull-in snout. Its lower edge is so high that the goods do not find any space between the scraper seal and the front wall that can be used for sticking.
  • the wiper seal is to be kept clean from the outside and easy to clean.
  • the elasticity of the wiper seal held above is used to produce an effective wiping and sealing effect.
  • the holder of the band can also be designed to be resilient, so that the possibly stiff band also follows the transverse movements of the tamper bar.
  • the embodiment according to claim 7 is expedient because the paving at the rear of the tamper bar is blocked from entering the shaft, the wear body additionally keeping undesired wear away from other parts of the screed.
  • a particularly important embodiment is set out in claim 8. Should the installation material move upwards despite the wiper seal, it is caught in the catch recesses and conveyed down again by the scraping surfaces as the tamper bar moves up and down.
  • the sealing effect of the wiper seal can be adjusted or adjusted as desired.
  • FIG. 1 shows a cross section of part of a screed of a paver.
  • a screed B for a road paver has a tamper bar T in a shaft S that opens downwards, which can be driven to move up and down by means of a drive A in order to thereby pave, e.g. to compact bituminous paving material that is smoothed and compacted by the screed.
  • the tamper bar T is located in the front infeed area of the screed B towed by a road paver (not shown) in FIG. 1 (working direction from right to left).
  • a front wall 2 is provided with a lower part 3 which extends downwards and obliquely inwards, the lower edge 4 of which is below a holding tion H lies.
  • bores 6 are provided in a reinforcing part 5 made of a U-transverse profile 5a and a sheet metal strip 5b, which the lower part 3 shields from the front.
  • the front wall 2 can be adjusted in relation to the screed frame 1 by means of a Einteilvor ⁇ device 7, 8, 9, with which, among other things, the width of the shaft S is adjustable.
  • a smoothing plate 11 is fastened to the underside of the screed frame 1, with which the screed B lies on the paving material.
  • the tamper bar has a base body 10 which either passes transversely to the working direction or is composed of individual sections.
  • the base body 10 may be hollow to accommodate heating devices.
  • the base body 10 can consist of a wearing part and a holding part.
  • the base body 10 has a rear side 12 which runs approximately vertically and with which the tamper guide T can be supported on a wear part 18 which is arranged between the smoothing plate 11 and the screed frame 1.
  • the top of the base body 10 is designated 11.
  • a stripping seal D engages on a substantially vertical and flat front side 13 of the tamper strip T and is fixed interchangeably in the holder H with tensioning screws 25.
  • the actual working surface of the tamper bar is a wedge surface 14, which slopes obliquely from the top to the rear and has a flat pressure surface 15.
  • the drive A of the tamper bar is, for example, an eccentric drive to which the tamper bar T is connected by means of connecting rod-like connecting elements 16.
  • the articulation point 17 rotates about an axis of rotation X, it being spaced apart from the axis of rotation X with a preferably adjustable eccentricity e. Out of it the essentially vertical stroke movement of the tamper bar T results in the direction of a double arrow Z. However, the rotational movement of the articulation point 17 also results in a tilting or transverse movement of the tamper bar T in the direction of an arrow W.
  • the stripping seal D has an upright band 22, for example made of spring steel, which is fixed with its upper edge region 23 in the holder H and extends with its lower edge 24 to approximately the inclined wedge surface 14 and with its rear side 27 even and without Game is at the front 13.
  • the band 22 is freely cantilevered with the tensioning screws 25, expediently with a certain pretension (by means of the Einteilvorrich ⁇ device 7, 8, 9) so that it presses against the front 13. Thanks to the elastic deformability of the material of the band 22, the latter can take part in these movements during the movements of the tamper strip T in the direction of the arrow W and thereby maintain the seal.
  • a stiffening plate 26 rests on the rear side 27 of the band 22.
  • An intermediate distance is expediently provided between the top 11 of the tamper strip T and the underside of the stiffening plate 26.
  • the front side 28 of the belt 22 faces forward in the working direction and is loaded by the pressure of the installation material during operation. The pressure of the installation material in the direction of the front 13 increases the sealing effect of the wiper seal D.
  • the bracket H is resilient. This measure can be provided in addition or alternatively to the inherent elasticity of the band 22 in order to support the permanent pressing of the band 22.
  • the belt 22 runs either over the length of the shaft S. However, it is also conceivable to place individual and butt abutting wall sections one behind the other, which are individually interchangeable.
  • the band 22 could also consist of a heat-resistant plastic that is resistant to the aggressive media of the installation material. It is also conceivable to provide a band 22 made of spring steel on the rear side with a well sliding, heat-resistant and low-wear covering, e.g. made of a plastic like PTFE.
  • the basic setting of the band 22 can be selected so that it rests against the front 13 without play.
  • a certain pretension or a pretensioning pressure for the band 22 is set on the front side 13 by means of the adjusting device 7, 8, 9.
  • the tape 22 is applied without play on the front 13, e.g. the front wall 2, 3 is drawn to the screed frame 1 by 1.0 to 2.0 mm in order to pretension the band.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Abstract

L'invention concerne une dame de mise en place (B) pour une finisseuse de route, comportant au moins un rebord de damage (T) monté dans un cuvelage (5) ouvert vers le bas et transversal par rapport au sens de travail de la dame (B). Le rebord de damage (T) est relié à un système d'entraînement (A) qui lui permet d'effectuer des mouvements sensiblement verticaux. Afin de réaliser une dame (B) de ce type qui empêche le rebord de damage de se bloquer, tout en étant de structure simple, il est prévu de placer au moins dans le sens de travail une garniture d'étanchéité racleuse (D) supportée fixe à l'avant dans le sens de levage (z), et qui repose de manière permanente sur le rebord de damage (T), déformable de manière élastique transversalement par rapport au sens de levage.
EP95900686A 1993-11-10 1994-11-09 Dame de mise en place Expired - Lifetime EP0678132B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE9317223U 1993-11-10
DE9317223U DE9317223U1 (de) 1993-11-10 1993-11-10 Einbaubohle
PCT/EP1994/003692 WO1995013428A1 (fr) 1993-11-10 1994-11-09 Dame de mise en place

Publications (2)

Publication Number Publication Date
EP0678132A1 true EP0678132A1 (fr) 1995-10-25
EP0678132B1 EP0678132B1 (fr) 1998-08-19

Family

ID=6900556

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95900686A Expired - Lifetime EP0678132B1 (fr) 1993-11-10 1994-11-09 Dame de mise en place

Country Status (4)

Country Link
EP (1) EP0678132B1 (fr)
JP (1) JP2958120B2 (fr)
DE (2) DE9317223U1 (fr)
WO (1) WO1995013428A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3135816A1 (fr) 2015-08-25 2017-03-01 Ammann Schweiz AG Table de lissage pour un finisseur

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130149930A1 (en) 2011-12-12 2013-06-13 E I Du Pont De Nemours And Company Methods to form an ionomer coating on a substrate
IN2014DN06526A (fr) 2012-02-29 2015-06-12 Du Pont
US20150203615A1 (en) 2014-01-22 2015-07-23 E I Du Pont De Nemours And Company Alkali metal-zinc ionomer compositions
US20150203704A1 (en) 2014-01-22 2015-07-23 E I Du Pont De Nemours And Company Alkali metal-magnesium ionomer compositions

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3545349A (en) * 1968-08-01 1970-12-08 Hans Gert Otterman Self-propelling paving machine
US3614916A (en) * 1970-04-13 1971-10-26 Jewell R Benson Compacting apparatus for finishing hot mix pavement
DE9313161U1 (de) * 1993-09-01 1993-10-28 Joseph Vögele AG, 68199 Mannheim Deckenfertiger und Werkzeug

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9513428A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3135816A1 (fr) 2015-08-25 2017-03-01 Ammann Schweiz AG Table de lissage pour un finisseur
WO2017032723A1 (fr) * 2015-08-25 2017-03-02 Ammann Schweiz Ag Poutre règle pour finisseur de route

Also Published As

Publication number Publication date
JP2958120B2 (ja) 1999-10-06
DE9317223U1 (de) 1994-01-13
EP0678132B1 (fr) 1998-08-19
DE59406734D1 (de) 1998-09-24
JPH08505674A (ja) 1996-06-18
WO1995013428A1 (fr) 1995-05-18

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