EP0796950B1 - Method and apparatus for exchanging a manhole frame installed in an asphalt layer - Google Patents
Method and apparatus for exchanging a manhole frame installed in an asphalt layer Download PDFInfo
- Publication number
- EP0796950B1 EP0796950B1 EP97101576A EP97101576A EP0796950B1 EP 0796950 B1 EP0796950 B1 EP 0796950B1 EP 97101576 A EP97101576 A EP 97101576A EP 97101576 A EP97101576 A EP 97101576A EP 0796950 B1 EP0796950 B1 EP 0796950B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- frame
- lifting device
- slot
- spreading arms
- horizontal
- 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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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
- E02D29/1445—Tools for positioning or removing cover frames
-
- 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
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/09—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
- E01C23/0906—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges
- E01C23/0926—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges with power-driven tools, e.g. vibrated, percussive cutters
- E01C23/0933—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges with power-driven tools, e.g. vibrated, percussive cutters rotary, e.g. circular-saw joint cutters
- E01C23/094—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges with power-driven tools, e.g. vibrated, percussive cutters rotary, e.g. circular-saw joint cutters about vertical or inclined axes, e.g. for core sampling
Definitions
- the present invention relates to a method for replacing a Asphalt ceiling in the frame of a manhole cover and a device to carry out the procedure.
- the present invention has for its object to provide a method which can be largely automated and without changing the frame substantial reworking or preparation of the construction site is possible.
- the sealing time of these potting compounds is relatively short, so that usually one with the traffic disability associated with the replacement after a correspondingly short time is canceled.
- a device for performing the method is designed such that a milling unit, which can be guided concentrically around the frame and which has spreading arms Lifting device with which the frame can be raised are provided, wherein the milling unit and the lifting device are adjustable in height on a known, held in place on the asphalt surface are, and wherein the spreading arms can be moved back and forth in the horizontal plane and at their free ends each have an angular support part, the horizontal, wedge-shaped legs the frame after being pressed into the Reach in under the mortar joint.
- the milling unit can be designed as a drill bit with a clear diameter is slightly larger than the outside diameter of the frame.
- a rotating milling arm can also be provided the end of which can be connected to a rotating milling head.
- the lifting device on the one hand and the milling unit on the other are vertical Adjustability switched separately.
- This offers a hydraulic Movability and a hydraulic drive of the milling unit, for example by means of an oil motor, since appropriate equipment that a hydraulic unit have, as a rule exist in the construction site area to which the device can be connected, for example a shovel loader or the like.
- a device is shown with which a frame 7 of a manhole cover, which is embedded in an asphalt surface, can be replaced.
- the device In its basic structure, the device consists of a frame 1, the four, on the asphalt surface has supporting feet.
- a milling unit 2 and a lifting device are adjustable in height on the frame 1 5 arranged, expediently in the middle area.
- the milling unit 2 has a drill bit 3, the clear diameter of which is larger than the outer diameter of the frame 7 and by means of the concentrically a slot is placed around the frame 7 in the asphalt surface.
- the depth of the slot extends below the bottom of the frame 7.
- the drill bit 3 is set in rotation by means of a belt drive 15, which over an oil motor 4 can be driven.
- valve 16 which is connected to an external hydraulic unit can become controllable.
- valves 8 and 10 are also controllable via such valves.
- pistons 8 and 10 are also controllable via such valves.
- the lifting device 5 has four at right angles in the present exemplary embodiment mutually extending, transverse to the vertical spreading arms 6, the are also hydraulically movable back and forth in the longitudinal axis direction.
- the spreading arms 6 have an angular support part 19, whose horizontal leg, which has a wedge-shaped end, can be pressed under the frame 7, the feed toward the frame 7 is limited by the angled, vertical leg, which then on the inside of the frame 7 rests.
- a container 12 is fastened to the frame, in which a cooling liquid is stored which is guided via a nozzle tube 13 into the engagement area of the drill bit 3 and cools it during operation.
- the frame 1 is above that still in the Asphalt pavement frame 7 placed that the core bit 3 to this center runs, with a manhole cover previously removed, so that the actual Shaft is open.
- the lifting device 5 is activated by actuating the to an external hydraulic unit connected control valve 16 lowered until the spreading arms 6 are at a height with a mortar joint on which the frame 7 rests.
- the drill bit 3 By actuating the oil motor 4, the drill bit 3 is set in rotation and by Pressurization of the piston 10 advanced. A slit is made in the Milled asphalt surface that runs concentrically to frame 7 at a certain distance.
- the slot extends beyond the underside of the frame 7, wherein After the intended slot depth has been reached, the drill bit is raised and lowered is brought into their engaging position.
- connection to the mortar layer breaks in the essentially without impairing this layer forming a support.
- the resulting borehole is cleaned and then a new one Frame used.
- the slot created by milling can now be used be poured into a fast setting plastic mortar, expediently up to slightly below the top edge of frame 7. The one that results up to the asphalt surface free space is then poured out with a hot grout.
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Architecture (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Road Repair (AREA)
- Sewage (AREA)
- Road Paving Machines (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft ein Verfahren zum Auswechseln eines in eine Asphaltdecke eingelassenen Rahmens einer Schachtabdeckung sowie eine Vorrichtung zur Durchführung des Verfahrens.The present invention relates to a method for replacing a Asphalt ceiling in the frame of a manhole cover and a device to carry out the procedure.
Ein solches Verfahren ist aus der US A 4 924 951 bekannt. Dabei wird der Rahmen mittels innenseitig reibschlüssig anliegender Spreizarme nach einem Einfräsen des konzentrisch sich erstreckenden Schlitzes herausgehoben.Such a method is known from US A 4 924 951. This is the framework by means of spreading arms which fit frictionally on the inside after milling in concentrically extending slot lifted out.
Des weiteren ist es bekannt Rahmen hauptsächlich durch druckluftbetriebene Werkzeuge, wie Drucklufthämmer oder dergleichen aus ihrem Verbund mit der Asphaltdecke zu lösen und manuell auszubauen.Furthermore, it is known mainly by compressed air powered frames Tools such as pneumatic hammers or the like from their association with the Loosen the asphalt surface and remove it manually.
Da hierdurch keine halbwegs genaue Arbeitsweise möglich ist, kommt es zu unkontrollierten Ausbrechungen der Asphaltdecke, die eine anschließende aufwendige Reparatur notwendig machen. Since this does not make it possible to work in a reasonably precise manner, it is important uncontrolled eruptions of the asphalt surface, which is a subsequent elaborate Make repairs necessary.
Überdies muß in relativ großem Umfang die geöffnete Stelle manuell bearbeitet werden.In addition, the open position must be processed manually to a relatively large extent become.
All dies ist mit einem erheblichen Kostenaufwand verbunden, der sich zum einen aus der erforderlichen Arbeitsintensität und zum anderen aus einem über Gebühr hohen Materialeinsatz ergibt.All of this is associated with a considerable cost, which is reflected on the one hand the required work intensity and on the other hand from an unduly high Material use results.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Verfahren zu schaffen, das weitgehend automatisierbar ist und ein Auswechseln des Rahmens ohne wesentliche Nacharbeit bzw. Vorbereitung der Baustelle möglich ist.The present invention has for its object to provide a method which can be largely automated and without changing the frame substantial reworking or preparation of the construction site is possible.
Diese Aufgabe wird durch ein Verfahren gelöst, daß die Merkmale des Anspruchs 1 aufweist.This object is achieved by a method that the features of claim 1 having.
Beim Auswechseln eines Rahmens im Sinne des erfindungsgemäßen Verfahrens bleibt die Asphaltdecke weitgehend unbeschädigt, so daß nachfolgende Reparaturarbeiten in größerem Umfang, wie sie bisher notwendig waren, entfallen.When replacing a frame in the sense of the inventive method remains the asphalt surface largely undamaged, so that subsequent repair work in to a larger extent, as was previously necessary, is no longer required.
Lediglich der in seiner Breite recht klein zu haltende Schlitz ist nach einem Einsatz eines neuen Rahmens auszugießen, wobei die Vergußmasse aus einem Kunststoffmörtel besteht, auf die bis zum Asphaltdeckenabschluß eine bituminöse Fugenvergußmasse aufgebracht wird.Only the slot, which is to be kept very small in width, is after use pour a new frame, the casting compound from a There is plastic mortar, on which a bituminous up to the end of the asphalt surface Joint sealing compound is applied.
Die Absperrzeit dieser Vergußmassen ist relativ kurz, so daß eine üblicherweise mit dem Auswechseln verbundene Verkehrsbehinderung nach entsprechend kurzer Zeit aufgehoben ist.The sealing time of these potting compounds is relatively short, so that usually one with the traffic disability associated with the replacement after a correspondingly short time is canceled.
Das gesamte erfindungsgemäße Verfahren bringt eine erhebliche Kosteneinsparung mit sich, resultieren aus den jetzt möglichen sehr kurzen Reparaturzeiten, einem geringen Materialaufwand sowie der aus den erwähnten Gründen sich ergebenden Verkürzungen von Verkehrsbehinderungszeiten.The entire method according to the invention brings considerable cost savings with itself, result from the very short repair times now possible, one low cost of materials and the resulting for the reasons mentioned Shortening traffic delays.
Eine Vorrichtung zur Durchführung des Verfahrens ist so ausgebildet, daß eine Fräseinheit, die konzentrisch um den Rahmen führbar ist, und eine Spreizarme aufweisende Hebeeinrichtung, mit der der Rahmen anhebbar ist, vorgesehen sind, wobei die Fräseinheit und die Hebeeinrichtung höhenverstellbar an einem an sich bekannten, sich im Gebrauchszustand auf der Asphaltdecke abstützenden Gestell gehalten sind, und wobei die Spreizarme in horizontaler Ebene hin und her verfahrbar sind und an ihren freien Enden jeweils ein winkelförmiges Auflageteil aufweisen, deren waagerechte, keilförmig ausgebildete Schenkel den Rahmen nach Eindrücken in die Mörtelfuge untergreifen.A device for performing the method is designed such that a milling unit, which can be guided concentrically around the frame and which has spreading arms Lifting device with which the frame can be raised are provided, wherein the milling unit and the lifting device are adjustable in height on a known, held in place on the asphalt surface are, and wherein the spreading arms can be moved back and forth in the horizontal plane and at their free ends each have an angular support part, the horizontal, wedge-shaped legs the frame after being pressed into the Reach in under the mortar joint.
Die Fräseinheit kann als Bohrkrone ausgebildet sein, die in ihrem lichten Durchmesser etwas größer ist als der Außendurchmesser des Rahmens ist.The milling unit can be designed as a drill bit with a clear diameter is slightly larger than the outside diameter of the frame.
Anstelle einer Bohrkrone kann auch ein sich drehender Fräsarm vorgesehen sein, an dessen Ende ein rotierender Fräskopf angeschlossen sein kann. Instead of a drill bit, a rotating milling arm can also be provided the end of which can be connected to a rotating milling head.
Die Hebeeinrichtung einerseits und die Fräseinheit andererseits sind in ihrer vertikalen Verstellbarkeit getrennt voneinander geschaltet. Dabei bietet sich eine hydraulische Verfahrbarkeit sowie ein hydraulischer Antrieb der Fräseinheit, beispielsweise mittels eine Ölmotors an, da entsprechende Gerätschaften, die ein Hydraulikaggregat aufweisen, im Regelfall im Baustellenbereich vorhanden sind, an die die Vorrichtung anschließbar ist, beispielsweise ein Schaufellader o.dgl.The lifting device on the one hand and the milling unit on the other are vertical Adjustability switched separately. This offers a hydraulic Movability and a hydraulic drive of the milling unit, for example by means of an oil motor, since appropriate equipment that a hydraulic unit have, as a rule exist in the construction site area to which the device can be connected, for example a shovel loader or the like.
Weitere vorteilhafte Ausgestaltungen des Verfahrens sowie der Vorrichtung sind in den Unteransprüchen gekennzeichnet.Further advantageous refinements of the method and of the device are shown in marked the subclaims.
Das erfindungsgemäße Verfahren sowie ein Ausführungsbeispiel einer Vorrichtung zur Durchführung des Verfahrens werden nachfolgend anhand der beigefügten Zeichnungen beschrieben.The method according to the invention and an embodiment of a device to carry out the method are based on the attached Described drawings.
Es zeigen:
- Figur 1
- eine erfindungsgemäße Vorrichtung in einer teilweise geschnittenen Seitenansicht,
Figur 2- einen Querschnitt durch die Vorrichtung gemäß der Linie II-II in Fig. 1,
Figur 3- einen weiteren Querschnitt durch die Vorrichtung gemäß der Linie III-III in Fig. 1.
- Figure 1
- a device according to the invention in a partially sectioned side view,
- Figure 2
- 2 shows a cross section through the device according to line II-II in FIG. 1,
- Figure 3
- a further cross section through the device along the line III-III in Fig. 1st
In den Figuren ist eine Vorrichtung gezeigt, mit der ein Rahmen 7 einer Schachtabdeckung,
der in eine Asphaltdecke eingelassen ist, ausgewechselt werden kann.In the figures, a device is shown with which a
In ihrem Grundaufbau besteht die Vorrichtung aus einem Gestell 1, das vier, sich auf der Asphaltdecke abstützende Füße aufweist.In its basic structure, the device consists of a frame 1, the four, on the asphalt surface has supporting feet.
An dem Gestell 1 sind höhenverstellbar eine Fräseinheit 2 sowie eine Hebeeinrichtung
5 angeordnet, und zwar zweckmäßigerweise im Mittenbereich.A
Die Fräseinheit 2 weist eine Bohrkrone 3 auf, deren lichter Durchmesser größer ist
als der Außendurchmesser des Rahmens 7 und mittels der konzentrisch ein Schlitz
um den Rahmen 7 in die Asphaltdecke eingebracht wird.The
Die Tiefe des Schlitzes erstreckt sich dabei bis unterhalb der Unterseite des Rahmens
7.The depth of the slot extends below the bottom of the
Die Bohrkrone 3 wird mittels eines Riementriebs 15 in Rotation versetzt, der über
einen Ölmotor 4 antreibbar ist. The
Dieser ist über ein Ventil 16, das mit einem externen Hydraulikaggregat verbunden
werden kann, steuerbar.This is via a
Gleichfalls über solche Ventile steuerbar sind Kolben 8 und 10, mit denen eine vertikale
Verstellung der Fräseinheit 2 und der Hebeeinrichtung 5 möglich ist.Also controllable via such valves are
Dabei handelt es sich um doppelt wirkende Kolben, die jeweils in einem Zylinder 9,11
geführt werden, in die jeweils Druckschläuche 17 münden.These are double-acting pistons, each in a
Während der Zylinder 9 fest mit dem Gestell 11 verbunden ist, ist der Zylinder 11 relativ
dazu verschiebbar, wobei dieser Zylinder 11 an einem Führungsrohr 18 befestigt
ist, das verdrehsicher außenseitig auf dem Zylinder 9 geführt ist.While the
Hierdurch wird eine unabhängig voneinander mögliche vertikale Verstellung der
Fräseinheit 2 und der Hebeeinrichtung 5 ermöglicht.This enables a vertical adjustment of the
Die Hebeeinrichtung 5 weist im vorliegenden Ausführungsbeispiel vier rechtwinklig
zueinander stehende, sich quer zur Vertikalen erstreckende Spreizarme 6 auf, die
gleichfalls hydraulisch in Längsachsrichtung hin und her bewegbar sind.The lifting device 5 has four at right angles in the present exemplary embodiment
mutually extending, transverse to the vertical spreading
An ihren Enden weisen die Spreizarme 6 ein winkelförmig ausgebildetes Auflageteil
19 auf, dessen horizontaler Schenkel, der ein keilförmig ausgebildetes Ende aufweist,
unter den Rahmen 7 drückbar ist, wobei der Vorschub zum Rahmen 7 hin
durch den abgewinkelten, senkrecht stehenden Schenkel begrenzt wird, der dann an
der Innenseite des Rahmens 7 anliegt.At their ends, the spreading
Weiter ist an dem Gestell ein Behälter 12 befestigt, in dem eine Kühlflüssigkeit gelagert
ist, die über ein Düsenrohr 13 in den Eingriffsbereich der Bohrkrone 3 geführt
wird und diese während des Betriebs kühlt.Furthermore, a
Zum Ersetzen eines defekten Rahmens 7 wird das Gestell 1 so über dem noch in der
Asphaltdecke befindlichen Rahmen 7 plaziert, daß die Bohrkrone 3 zentrisch dazu
verläuft, wobei ein Schachtdeckel zuvor entfernt wurde, so daß der eigentliche
Schacht offen ist.To replace a
Sodann wird die Hebeeinrichtung 5 durch Betätigen des an ein externes Hydraulikaggregat
angeschlossenes Steuerventil 16 so weit abgesenkt, bis die Spreizarme 6
sich in einer Höhe mit einer Mörtelfuge befinden, auf der der Rahmen 7 aufliegt. Then the lifting device 5 is activated by actuating the to an external hydraulic unit
connected
Beim anschließenden Verfahren der Spreizarme 6 in Richtung des Rahmens 7 graben
sich die horizontalen Schenkel der Auflageteile 19 in die Mörtelfuge, bis die vertikalen
Schenkel der Auflageteile 19 an der Wandung des Rahmens 7 anliegen.When the spreading
Durch ein kurzes Betätigen des Kolbens 8 nach oben wird das Gestell 1 fest gegen die Asphaltdecke gepreßt, so daß ein sicherer Stand gewährleistet ist.By briefly pressing the piston 8 upwards, the frame 1 is firmly against the asphalt surface is pressed so that a secure stand is guaranteed.
Durch Betätigen des Ölmotors 4 wird die Bohrkrone 3 in Rotation versetzt und durch
Druckbeaufschlagung des Kolbens 10 vorgeschoben. Dabei wird ein Schlitz in die
Asphaltdecke gefräst, der mit gewissem Abstand konzentrisch zum Rahmen 7 verläuft.By actuating the oil motor 4, the
In seiner Tiefe ragt der Schlitz über die Unterseite des Rahmens 7 hinaus, wobei
nach Erreichen der vorgesehenen Schlitztiefe die Bohrkrone angehoben und aus
ihrer Eingriffstellung gebracht wird.In depth, the slot extends beyond the underside of the
Nunmehr liegt der Rahmen 7 so weit frei, daß er ohne weiteres durch die Hebeeinrichtung
5 angehoben werden kann. Die Verbindung zur Mörtelschicht reißt dabei im
wesentlichen ohne Beeinträchtigung dieser eine Auflage bildenden Schicht ab.Now the
Durch Zurückfahren der Spreizarme 6 fällt der so gelöste Rahmen 7 ab und kann beseitigt
werden.By retracting the spreading
Im Bedarfsfall wird das entstandene Bohrloch gesäubert und anschließend ein neuer
Rahmen eingesetzt. Der durch das Ausfräsen entstandene Schlitz kann nun mit
einem schnell abbindenden Kunststoffmörtel vergossen werden, sinnvollerweise bis
etwas unterhalb der Oberkante des Rahmens 7. Der sich bis zur Asphaltdecke ergebende
freie Raum wird dann mit einer heißen Fugenvergußmasse ausgegossen. If necessary, the resulting borehole is cleaned and then a new one
Frame used. The slot created by milling can now be used
be poured into a fast setting plastic mortar, expediently up to
slightly below the top edge of
- 11
- Gestellframe
- 22nd
- FräseinheitMilling unit
- 33rd
- BohrkroneCore bit
- 44th
- ÖlmotorOil engine
- 55
- HebeeinrichtungLifting device
- 66
- SpreizarmSpreader arm
- 77
- Rahmenframe
- 88th
- Kolbenpiston
- 99
- Zylindercylinder
- 1010th
- Kolbenpiston
- 1111
- Zylindercylinder
- 1212th
- Behältercontainer
- 1313
- DüsenrohrNozzle pipe
- 1414
- Fußfoot
- 1515
- RiementriebBelt drive
- 1616
- VentilValve
- 1717th
- Druckschlauchpressure hose
- 1818th
- FührungsrohrGuide tube
- 1919th
- AuflageteilSupport part
Claims (4)
- A method of replacing a frame (7) of a manhole cover, which is let into an asphalt surface, wherein horizontally displaceable spreading arms (6) of a lifting device (5) are moved to the height of a mortar join on which the frame (7) rests, and are then urged with their tapered horizontal limbs under the frame (7) into the mortar join, thereafter a slot is cut, which extends concentrically on the outside of the frame (7) and which extends in its depth at least as far as the lower edge of the frame (7), then the frame (7) is lifted out by means of the lifting device (5), a new frame (7) is inserted and the slot is filled in.
- Apparatus for carrying out the method according to claim 1 wherein there are provided a cutting unit (2) which can be guided concentrically around the frame (7) and a lifting device (5) which has spreading arms (6) and with which the frame (7) can be lifted, the cutting unit (2) and the lifting device (5) being carried displaceably in respect of height on a per se known support frame structure (1) which in the condition of use is supported on the asphalt surface and the spreading arms (6) being reciprocatable in a horizontal plane and at each of their free ends having a respective angular support portion (19) whose horizontal tapering limbs engage under the frame (7) after being pressed into the mortar join.
- Apparatus according to claim 2 characterised in that besides the horizontal limb provided on the support portion (19) is a vertical limb which in the position of use bears against the inside of the frame (7).
- Apparatus according to claim 2 characterised in that the cutting unit is in the form of an annular boring bit and that the boring bit (7) is drivable by way of a gear or belt drive (15) connected to a motor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19611397 | 1996-03-22 | ||
| DE19611397A DE19611397A1 (en) | 1996-03-22 | 1996-03-22 | Method and device for replacing a frame of a manhole cover embedded in an asphalt surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0796950A1 EP0796950A1 (en) | 1997-09-24 |
| EP0796950B1 true EP0796950B1 (en) | 2000-04-19 |
Family
ID=7789126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97101576A Expired - Lifetime EP0796950B1 (en) | 1996-03-22 | 1997-02-01 | Method and apparatus for exchanging a manhole frame installed in an asphalt layer |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0796950B1 (en) |
| AT (1) | ATE191942T1 (en) |
| DE (2) | DE19611397A1 (en) |
| DK (1) | DK0796950T3 (en) |
| ES (1) | ES2144808T3 (en) |
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|---|---|---|---|---|
| KR101463193B1 (en) | 2012-10-16 | 2014-11-24 | 박경희 | Manhole height adjustment implement |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19811638C2 (en) * | 1998-03-18 | 2000-05-11 | Juergen Stehr | Device for milling or drilling |
| DE10041247B4 (en) * | 2000-08-22 | 2004-02-05 | Jürgen Stehr | Method for free milling a manhole cover and / or a manhole cover support and device for carrying out the method |
| KR100375811B1 (en) * | 2000-12-20 | 2003-03-15 | 미래피앤씨(주) | manhole repair apparatus and method thereof |
| DK1375755T3 (en) * | 2002-05-31 | 2005-08-22 | Nettek International Inc Techn | Method and apparatus for separating a run-down fire |
| GR20100100196A (en) * | 2010-03-30 | 2011-10-13 | Δημητριος Ιωαννη Τσουβαλας | Fast repair method for manholes constructed on road surfaces |
| EP3719209A3 (en) | 2019-04-02 | 2020-10-21 | Simex S.r.l. | Excavating assembly and operating machine comprising this assembly |
| CN112897329A (en) * | 2021-04-25 | 2021-06-04 | 江苏徐工工程机械研究院有限公司 | Clamping and lifting device of inspection well cover base and engineering machinery |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1142699A (en) * | 1956-02-16 | 1957-09-20 | Process for repairing or forming joints between concrete slabs and machine for the implementation of this process | |
| FR1336134A (en) * | 1962-06-01 | 1963-08-30 | Device for transmitting the time by means of electrical signals | |
| US3401973A (en) * | 1966-12-27 | 1968-09-17 | Norwood L Sorrell | Multiple point lift plate |
| US3491844A (en) * | 1967-03-20 | 1970-01-27 | Hughes Tool Co | Drag type core drill for pavement or rock having disparate inclusions |
| DE8816496U1 (en) * | 1988-03-31 | 1989-11-09 | Mühlstädter, Alexander, 76889 Birkenhördt | Device for making head holes |
| US4924951A (en) * | 1989-01-13 | 1990-05-15 | Paulson Roger W | Manhole cutter |
| DK169412B1 (en) * | 1992-09-14 | 1994-10-24 | Gershon Friedman | Apparatus for cutting cover in coating, e.g. asphalt |
-
1996
- 1996-03-22 DE DE19611397A patent/DE19611397A1/en not_active Withdrawn
-
1997
- 1997-02-01 DK DK97101576T patent/DK0796950T3/en active
- 1997-02-01 EP EP97101576A patent/EP0796950B1/en not_active Expired - Lifetime
- 1997-02-01 DE DE59701460T patent/DE59701460D1/en not_active Expired - Lifetime
- 1997-02-01 AT AT97101576T patent/ATE191942T1/en active
- 1997-02-01 ES ES97101576T patent/ES2144808T3/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101463193B1 (en) | 2012-10-16 | 2014-11-24 | 박경희 | Manhole height adjustment implement |
Also Published As
| Publication number | Publication date |
|---|---|
| DK0796950T3 (en) | 2000-09-18 |
| ATE191942T1 (en) | 2000-05-15 |
| DE59701460D1 (en) | 2000-05-25 |
| EP0796950A1 (en) | 1997-09-24 |
| DE19611397A1 (en) | 1997-09-25 |
| ES2144808T3 (en) | 2000-06-16 |
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