EP0479967B1 - Dübelsetzgerät - Google Patents

Dübelsetzgerät Download PDF

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Publication number
EP0479967B1
EP0479967B1 EP91906661A EP91906661A EP0479967B1 EP 0479967 B1 EP0479967 B1 EP 0479967B1 EP 91906661 A EP91906661 A EP 91906661A EP 91906661 A EP91906661 A EP 91906661A EP 0479967 B1 EP0479967 B1 EP 0479967B1
Authority
EP
European Patent Office
Prior art keywords
dowel
fitting device
dowels
concrete
brackets
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
EP91906661A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0479967A1 (de
Inventor
Michael Weinberger
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.)
Thoma Erhard L
Original Assignee
Thoma Erhard L
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 Thoma Erhard L filed Critical Thoma Erhard L
Priority to AT91906661T priority Critical patent/ATE97968T1/de
Publication of EP0479967A1 publication Critical patent/EP0479967A1/de
Application granted granted Critical
Publication of EP0479967B1 publication Critical patent/EP0479967B1/de
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
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/04—Devices for laying inserting or positioning reinforcing elements or dowel bars with or without joint bodies; Removable supports for reinforcing or load transfer elements; Devices, e.g. removable forms, for making essentially horizontal ducts in paving, e.g. for prestressed reinforcements

Definitions

  • the invention relates to a dowel setting device according to the preamble of patent claim 1.
  • a dowel setting device of this type has become known from DE-OS 22 59 040.
  • This dowel setting device is characterized by a relatively simple structure, but this is purchased with a disadvantage that is not negligible in practice.
  • the carrier of this dowel setting device is constantly pushed through the loose concrete heaped up in front of the slipform paver. It dodges sideways and must be brought back into the space between the carrier of the dowel setting device and the leveling plate of the slipform paver in an unexplained manner.
  • this carrier hinders the unloading of the concrete in front of the slipform paver, ie the concrete cannot be poured directly in front of the leveling plate or the like of the slipform paver.
  • the slipform paver is known to produce concreted surfaces such as roads, concrete slopes and the like in continuous motion. Trucks in front of the paver are loosely filled with liquid concrete. It is then distributed and smoothed by a auger which is arranged transversely to the direction of travel, and then compacted and smoothed by vibrators immersed in the liquid concrete and a subsequent press plate.
  • the dowel setting device then places rows of dowels parallel to the direction of travel in the not yet solid concrete at predetermined intervals. If the latter has already set something, joints are milled into the concrete at this point across the dowels. As the concrete hardens further, the concrete slab will crack at these points. This creates individual, separate concrete slabs that are fixed against each other by the pre-pressed dowels. The dowels prevent these concrete slabs from displacing each other in terms of height and thereby forming thresholds.
  • Dowel setting devices arranged behind the slipform paver have the advantage that they do not hinder the delivery of the concrete in front of the slipform paver. On the other hand, however, as mentioned, they require extensive rework.
  • the dowel setting device is designed in accordance with the preamble of claim 1 in accordance with the characterizing part of this claim.
  • This dowel setting device is attached to the slipform paver so that the cantilevers are in front of the vehicle body in the direction of travel, so that the dowels extend from the front into the area where the concrete begins to compact.
  • this dowel setting device or its dowel receivers are only briefly swiveled into the work area in front of the slipform paver and you put them back into a loading position immediately after placing the dowels swivels up, the working area in front of the slipform paver is freely accessible for spreading the concrete during most of the working time.
  • the application of the concrete and the setting of the dowels can be coordinated with one another in such a way that setting the dowel does not impair the application of the concrete at all.
  • the operation of the dowel setting device is no more difficult and the workload is not less than that of the previously known dowel setting device.
  • the dowels can still be positioned very precisely. There is also no reworking for the purpose of smoothing. As a result, no screed is required behind the slipform paver with this dowel setting device.
  • the dowel setting device is characterized by a short, compact design.
  • the known direction of movement when inserting the dowels has the advantage that the distribution of the concrete grain over the dowels is not disturbed.
  • the spacing of the dowels can be freely selected by a suitable choice of the structural arrangement of the individual components (dowel receptacles).
  • the dowels are inserted into the concrete along a special arch shape, which is already in motion by the vibrators at this point.
  • the dowels are brought out of the dowel receptacles in a known manner precisely where the energy absorption of the concrete by vibrators (vibrators) stops, ie where the concrete is in its final position and the consolidation process begins.
  • vibrators vibrators
  • Figure 1 shows schematically - in thin lines - a slipform paver 1, consisting of the vehicle body 2, screed 3, frame 4 and attached crawlers 5, 6.
  • the slipform paver 1 moves in the direction of the arrow 7.
  • Concrete 10 is loosely poured in front of it , distributed uniformly over the width of the pavement runway to be concreted by a distributor screw 11, compacted by vibrators 12 and further solidified by the press plank 3 and provided with a smooth surface.
  • the slipform paver 1 then leaves the completely installed concrete 10 'behind it.
  • the vehicle body 2 On booms 21, 22 (see FIG. 2), which are only indicated in FIG. 1, the vehicle body 2 carries guide profiles 13, 14 and 15, 16 on both sides. Rollers 17, 18 run on these guide profiles, which on plates 23 , 24 are attached, which in turn are connected to a carrier 20. If the carrier 20 is displaced in the vertical direction, it changes its position not only with regard to the height, but because the roller 17 in the guide profile 13 and the roller 18 in the guide profile 14 (or in the guide profiles 15, 16) run in such a way that that in the uppermost position it assumes the position 20 'shown in broken lines. Then the plates have the positions 23 ', 24'.
  • the height shift of the carrier 20 is carried out by a hydraulically driven chain drive. Details have been omitted from Figure 1 for the sake of clarity. However, the person skilled in the art knows how to install such devices.
  • brackets 30 on the carrier 20 which, when the carrier 20 is shifted in height, are shifted from the setting position shown in solid lines in FIG. 1 to the loading position 30 'shown in dash-dotted lines.
  • the ends of the arms 30 receive dowels 31, which are provided from a magazine 32.
  • the position of a dowel 31 in the boom in its loading position 30 ' is denoted by 31'.
  • the dowels 31 are introduced into the not yet finally solidified concrete in the front area of the slipform paver 1. In this position, the dowels 31 are then ejected from the boom 30 and then remain in their position.
  • the slipform paver 1 and with it the boom 30 continue in the direction of arrow 7.
  • the slipform paver 1 passes over the concrete, which is still liquid but increasingly subject to compaction and consolidation.
  • the dowel 31 does not change its position in this more.
  • FIG. 2 there is a row of approx. 20 dowels next to each other in the concrete.
  • a groove is then milled transversely to the longitudinal axis of the dowels 31 into the already solid, but not yet finally hardened and dried concrete.
  • the decisive factor is the time interval; it depends on the temperature and the concrete composition and can be between a few hours and 2 days. In the course of the further hardening process of the concrete, the concrete ceiling tears along the groove, so that several panels are joined together, which are then connected to one another via the dowels 31.
  • the dowels 31 are received by the cantilevers 30 by means of the dowel receivers 33 shown in FIG. 3, which are arranged or provided at the end of the cantilevers 30.
  • the dowel receiver 33 has a cylinder 34 which is screwed into the bracket 30 with its left end (in FIG. 3) and can be pressurized with a hydraulic medium via a connection 35.
  • a piston 36 is displaceable in the cylinder 34 and is connected to a tappet 37.
  • a dowel receiving sleeve 38 is screwed into the end of the cylinder 34. Between the cylinder 34 and the dowel receiving sleeve 38 there is a disk 39 on which a spring 40 is supported, which follows the piston 36 in FIG left presses.
  • a guide sleeve 41 is arranged in the dowel receiving sleeve 38 and has slots 42, in which neoprene inserts 43 are arranged.
  • a dowel 31 is now received in a guide sleeve 41 in the manner shown, it is therein, with the appropriate dimensions of the neoprene inserts 43, such that they are pressed together somewhat (in the radial direction towards the outside) when the dowel is inserted.
  • This can be supported by the fact that when the connection 35 is subjected to low pressure, which also propagates through the opening 44 in the piston 36 into the interior of the cylinder 34, the guide sleeve 41 presses the neoprene inserts 43 in the axial direction and presses them thereby expanding somewhat radially.
  • the boom 30 is also in its loading position 30 ', the dowel receiver in its position 33', the dowel in position 31 '.
  • the magazine 32 is formed by two U-shaped rails 47, 48, into which dowels 31 are inserted from above.
  • Cam plates 49, 50 are arranged on the underside of the profile rails 47, 48, offset somewhat inward relative to these. They prevent the dowels from falling out. Both cams have a dowel receiving groove 51; the cam plate 49 also has a switching groove 52. In the position shown in FIG. 6, the dowel receiving groove 51 receives a dowel 31 at the lower end of the shaft formed by the U-shaped rails 47, 48.
  • the shaft formed by the U-shaped rails 47, 48 is closed at the bottom and at the same time the dowel 31 is brought into a position in which it 5, is clamped between leaf springs 54 and a guide plate 55.
  • the leaf springs 54 and 54a are slightly rounded, so that at this point the dowel 31 between the guide plate 55 and the leaf spring 54 is fixed elastically in a defined position.
  • the leaf springs 54 are provided twice at a distance and screwed onto a swivel beam 56. This swivel beam 56 carries a centering plate 67 on its left side (in FIG.
  • the centering disk 67 is shown in dash-dot lines because it follows the position of the Section VV is in front of the drawing level). This is done in that the groove engages around the dowel receiving sleeve 38 in a practically fork-like manner, so that the latter also serves as a stop at the same time. In this situation begins the downward movement of the carrier 20 with the arms 30 arranged thereon from the position 30 '(FIG. 1). In the first phase, the dowel receiving sleeve 38 then slides over the upper end of the dowel 31 in the position 31 'shown in FIG. 4. The dowel 31 lies on the square tube 63 for receiving.
  • the swivel bar is pivoted back with the square tube 63, and with further downward movement of the support 20 along the somewhat more marked dash-dotted coupling curves in FIG. 1 moves so far down that after the swiveling process, the dowel 31 in FIG. 1 is solid Line shown setting position is. Then the connection 35 (see FIG. 3) is pressurized so that the dowel is ejected. As already explained, it is then in its final position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
EP91906661A 1990-05-02 1991-03-27 Dübelsetzgerät Expired - Lifetime EP0479967B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91906661T ATE97968T1 (de) 1990-05-02 1991-03-27 Duebelsetzgeraet.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4014098A DE4014098A1 (de) 1990-05-02 1990-05-02 Duebelsetzer
DE4014098 1990-05-02

Publications (2)

Publication Number Publication Date
EP0479967A1 EP0479967A1 (de) 1992-04-15
EP0479967B1 true EP0479967B1 (de) 1993-12-01

Family

ID=6405585

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91906661A Expired - Lifetime EP0479967B1 (de) 1990-05-02 1991-03-27 Dübelsetzgerät

Country Status (5)

Country Link
US (1) US5273374A (enrdf_load_stackoverflow)
EP (1) EP0479967B1 (enrdf_load_stackoverflow)
DE (2) DE4014098A1 (enrdf_load_stackoverflow)
ES (1) ES2049109T3 (enrdf_load_stackoverflow)
WO (1) WO1991017314A1 (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5993108A (en) * 1998-08-10 1999-11-30 Bestgen, Inc. Dowell rod inserter
DE19904797C1 (de) * 1999-02-05 2000-12-28 Wirtgen Gmbh Vorrichtung zum Einbringen von Dübeln in frisch verlegte Fahrbahndecken
US6176643B1 (en) * 1999-10-01 2001-01-23 Guntert & Zimmerman Const. Div. Detachable dowel bar inserter kit for portable slip form paver
US6390726B1 (en) * 1999-10-01 2002-05-21 Guntert & Zimmerman Const. Div. Dowel bar inserter kit having chain feeder
CN101156163A (zh) * 2005-03-23 2008-04-02 卡Xx公司 使用带有高质量外表面的各向同性热固粘合材料制造带有集成电子器件的高级智能卡的方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2295947A (en) * 1939-12-14 1942-09-15 John N Heltsel Road building machine
US4493584A (en) * 1981-12-17 1985-01-15 Guntert & Zimmerman Const. Div., Inc. Apparatus and process for dowel insertions
CH669233A5 (de) * 1986-04-04 1989-02-28 Thoma Werksvertretungen Strassenbaumaschine.
DE3811186C2 (de) * 1988-04-01 1996-10-02 Erhard Thoma Gleitschalungsfertiger
US4995758A (en) * 1989-07-31 1991-02-26 Cmi Corporations Center bar inserter

Also Published As

Publication number Publication date
ES2049109T3 (es) 1994-04-01
EP0479967A1 (de) 1992-04-15
WO1991017314A1 (de) 1991-11-14
DE4014098C2 (enrdf_load_stackoverflow) 1992-10-22
DE4014098A1 (de) 1991-11-14
US5273374A (en) 1993-12-28
DE59100662D1 (de) 1994-01-13

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