EP0844364A2 - Dispositif pour enlever les déblais de forage d'une tarrière - Google Patents

Dispositif pour enlever les déblais de forage d'une tarrière Download PDF

Info

Publication number
EP0844364A2
EP0844364A2 EP97119930A EP97119930A EP0844364A2 EP 0844364 A2 EP0844364 A2 EP 0844364A2 EP 97119930 A EP97119930 A EP 97119930A EP 97119930 A EP97119930 A EP 97119930A EP 0844364 A2 EP0844364 A2 EP 0844364A2
Authority
EP
European Patent Office
Prior art keywords
stripping
stripper
scraper
support member
wear
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
EP97119930A
Other languages
German (de)
English (en)
Other versions
EP0844364A3 (fr
EP0844364B1 (fr
Inventor
Dieter Pauluhn
Nikodemus Heinz
Winfried Scheid
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.)
Delmag Maschinenfabrik Reinhold Dornfeld GmbH and Co
Original Assignee
Delmag Maschinenfabrik Reinhold Dornfeld GmbH and Co
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 Delmag Maschinenfabrik Reinhold Dornfeld GmbH and Co filed Critical Delmag Maschinenfabrik Reinhold Dornfeld GmbH and Co
Publication of EP0844364A2 publication Critical patent/EP0844364A2/fr
Publication of EP0844364A3 publication Critical patent/EP0844364A3/fr
Application granted granted Critical
Publication of EP0844364B1 publication Critical patent/EP0844364B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B12/00—Accessories for drilling tools
    • E21B12/06—Mechanical cleaning devices
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
    • E21B7/201—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes with helical conveying means

Definitions

  • the invention relates to a device for removal of drilling material from the spaces between the aisles a helical rib of an earth auger according to the preamble of claim 1.
  • Such known devices typically include a hand-operated scraper, which by a Worker is held.
  • the worker holds the stripper when rotated by the driver of a drill and at the same time hoisted auger, the the Stripping part holding the stripping part Recording the reaction torque on a fixed Can support part of the drilling device and smaller Fluctuations between that corresponding to the pitch of the helical rib Ratio between drawing speed and speed of rotation of the auger and the actual ratio between these speeds manually Compensate for inclination or height adjustment of the scraper part can.
  • the present invention is therefore intended to provide a device to remove drillings from the spaces between the corridors of a helical rib of an earth auger in which the stripping of the drilling material without manual Intervention can take place.
  • the stripping device that is Scraper part slidable parallel to the drill axis arranged a support member, but of this rotationally held.
  • the scraper part Torques occurring when stripping drill material transferred to the supporting part, from where it is then to a frame-fixed structure are forwarded.
  • the scraper part can move parallel to the drill axis, if the axial speed and the rotational speed of the drill does not exactly match the pitch of the helical rib correspond.
  • the deflection of the scraper part the supporting part can be observed visually and for Readjustment of either the rotational speed or the Pulling speed of the earth auger serve. To do this facilitate the stripping device is preferred set up on the drill so that the operator of the drill from whose cabin is clearly visible.
  • the development of the invention according to claim 7 enables a check of the position of the scraper part on the support part even in cases where a Visual contact to the wiping part for the operator of the drill cannot be realized. Furthermore, can the output signal of the position measuring device too for automatic readjustment of the relationships between Pulling speed and speed of rotation of the hearth drill be used.
  • the development of the invention according to claim 9 has the advantage that the force sensor is removed from places are arranged, which are stripped with from the twist drill Drillings come into contact.
  • the stripping device already in that axial area of the auger can work, which lies within the drive pipe for the drill pipe.
  • the stripping of the drilling material is thus carried out on one particularly low-lying place and the stripped Drilled material is delivered in a precisely defined direction, which is predetermined by the access opening.
  • the drive tube with respect to the transmission of torque and the transmission of oppressive and pulling forces on the drill pipe just as resilient is like a pipe made of comparable pipe material Drive tube that has no access opening.
  • a scraper device as specified in claim 16 has a particularly compact structure and the drive tube and the scraper can be combined easy to handle. It also ensures that the Scraper and the drive tube in to the axis of the drive tube parallel to each other are set so that in this direction no adjustment is necessary to the scraper to activate.
  • Support part in turn part of the access opening can represent adjacent reinforcement structure. This reinforcement caused by the support member is also special effective, since the supporting part is in the area the access opening is located and bridged this mechanically.
  • the development of the invention according to claim 17 ensures good transmission of forces and torques from the supporting part to fixed parts of the drilling machine.
  • the development of the invention according to claim 20 allows it a driver of the drill who has no or insufficient visual contact with the scraper has to safely determine when he has the stripper unobstructed through the access opening of the drive tube can move.
  • the leader of the drill himself poorly recognizable with good visual contact to the drive tube can, like the helix rib of the earth auger regarding the Scraper part stands, can determine when a space between adjacent courses of the spiral rib Scraper part faces so that this between these gears can be swung in freely.
  • the wear material specified in claim 23 is in With regard to resilient properties, friction and wear particularly advantageous.
  • 10 is a leader of a drill.
  • a lower drive head 12 with a carriage 14 and an upper drive head 16 slidable with a carriage 18.
  • a point on the carriage 18 is an endless one Fixed wire rope 28, which over leader-fixed pulleys 30, 32 runs, which in practice to the pulleys 22, 24 are coaxial and have the same bearing parts are connected to the leader 10, but here too Explanatory purposes as the side opposite the pulleys 22, 24 are shown offset.
  • the lower one Deflection roller 30 is driven by a hydraulic motor 34.
  • a drive tube 36 In the carriage 14 is the upper end of a drive tube 36 via an axial / radial bearing. At the upper end a sprocket 37 is attached to the drive tube 36. An output pinion 38 of a hydraulic motor works on these 40.
  • the hydraulic motor 40 is provided with an angle sensor 42, this one not shown in the drawing reducing input gear, the Gear ratio the gear ratio between corresponds to the output pinion 38 and the ring gear 37, so that the angle encoder 42 is clearly the angular position of the ring gear 37 associated output signal.
  • the drive tube 36 is designated with a total of 44 Boring material stripping device provided, the further is explained below with reference to Figure 2.
  • At the lower end of the drive tube 36 is the upper one End of a drill string 46 releasably attached.
  • a total extends through the drill pipe string 46 with 48 marked earth drill, which has a central core rod 50 and a spiral rib carried by it 52 has.
  • the auger 48 is at its top in the drawing broken end with the lower one in the drawing also not visible end of a Kelly rod 54 connected, the square cross-section in a known manner has and a central complementary drive opening 56 penetrates a drive pulley 58, the is axially and radially supported in the upper carriage 18.
  • the drive disk 58 has a ring gear 60, which with the output pinion 62 of a hydraulic motor 64 meshes.
  • the latter is coupled to an angle transmitter 66 which has a reduction gear on the input side, the Gear ratio the reduction ratio between Output pinion 62 and gear ring 60 corresponds, so that the output signal of the angle encoder 66 is unique Function of the angular position of the drive pulley 58 and thus the earth auger 48.
  • a wire rope 68 is provided, which around leader-fixed pulleys 70, 72 to one at the bottom At the end of the leader provided leader-proof rope drum 72 runs.
  • the latter is driven by hydraulic motor 74.
  • the drive tube 36 has one formed in its peripheral wall Access opening 78, which is in process approximately has the shape of a rectangle.
  • the long axis this rectangle runs parallel to the longitudinal axis of the Drive tube 36.
  • a wiping part is through the access opening 78 80 movable. This has the axis of the drive tube 36 parallel dimensions smaller than that Incline of the helical rib 52.
  • a wear plate 81 fastened by means of screws 83. It has an edge contour that in the surface of the stripping part 80 taken cross section of the space 82 is closely matched so that the wear plate 81 with a narrow clearance fit or slightly larger sliding fit runs in the space 82. That way the flanks of the spiral rib 54 and the lateral surface of the Core rod 50 cleaned well.
  • the wear plate 81 consists of a material, in particular a plastic material that is softer than the material or materials. from which of the Erdbohrer 48 is made. Furthermore, the wear material in terms of a certain elasticity and in terms of to low friction on the materials of the earth auger the intended operating temperatures selected. Matedie these requirements at reasonable cost wearing are, in particular, elastomeric crosslinking polyurethanes, such as that under the trade name Vulkollan available plastic material.
  • the stripping part 80 has at its outer end a guide section 84 which has a central square Cross-sectional guide recess 86 is provided This runs in sliding play on one support bar 88 having a square cross section, the ends of which are formed as stub shafts and in an upper bearing sleeve 90 and a lower bearing sleeve 92 of the drive tube 36 are rotatably mounted.
  • the bearing sleeves 90 and 92 are on an upper reinforcement ring 94 of the drive tube 36 or two spaced lower reinforcing rings 96, 98 of the Drive tube 36 welded.
  • a compression spring 98 Between the top face of FIG Guide section 84 and the underside of the bearing sleeve 90 is a compression spring 98, wherein the upper end with the interposition of a force sensor 100 is supported on the underside of the bearing sleeve 90.
  • the bearing sleeve 92 has two axially spaced locking openings 108, in a working position of Support rod 88 with not shown in the drawing Locking openings in the lower stub shaft section of the support rod 88 are aligned so that these via locking pins 110 lockable in said working position is.
  • the two compression springs 98, 104 tension the stripping part 80 in a basic position, as shown in the drawing is reproduced.
  • the axial dimension of the access opening 78 is a multiple of the axial extent of the stripping part 80, so that this is in its Working position in the axial direction downwards or can move up if the ratio between the speed at which the auger 48 passes through the wire rope 68 is pulled up and the speed, with which the auger 48 is rotated when pulled is not exactly the slope of the spiral rib 52 corresponds.
  • the stripping part 80 is in its outside the rest of the inner surface of the drive tube 36 moves so that the auger 48 in the drive tube 36 can rotate freely.
  • the earth drill 48 is in the ground pressed in, the at the same time by the Hydraulic motor 64 is rotated. That from the drill tip loosened soil is absorbed between the spiral ribs. If it doesn't get stuck there, it can partially conveyed upward by the spiral rib 52 become and fall out through the access opening 78.
  • the driver of the drill now sets the rope drum 72 by pressurizing the hydraulic motor 74 in the sense of winding the wire rope 68 in Movement and rotation of the auger 48 by pressurization of the hydraulic motor 64 against the at Drilling uses direction, with pressurization of hydraulic motors 64 and 74 on top of each other are matched that the ratio of speeds corresponds to the slope of the helical rib 52. Under such ideal conditions, the scraper part can then 80 without contact with the flanks of the spiral rib 52 soil clear 82.
  • the operator of the drilling device places it at the beginning of the stripping process the drive tube 36 in such an angular position, that it is the guide portion 84 of the stripping member 80 from the cab of the excavator chassis carrying the drill can see well, so is the display pin-like Movement of the guide section 84 on the Support rod 88 directly a measure of the speed mismatch, and the leader of the drill can either by changing the pressure medium applied to the hydraulic motor 74 or by changing the pressure medium pressure of the hydraulic motor 64, the stripping part 80 move again in the direction of the desired basic position.
  • the angle encoder 42 has one input of a trigger comparator 114 connected. Its second entrance receives from a setpoint device shown as an adjustable resistor 116 a target angle signal, as in that Position of the drive tube 36 provided by the angle sensor 42 in which the stripping part 80 is free pivoted between working position and rest position can be as described above.
  • the output signal of the trigger comparator 114 becomes via a power amplifier 118 to the control terminal of a 4/2 solenoid valve 120. This is (additional to the other control valves for direction of rotation and speed) in working lines 122, 124 inserted, which lead to the hydraulic motor 40. To this Way, the hydraulic motor 40 is automatically stopped, if the drive tube 36 which for pivoting the Scraper part desired angular position reached. Under Normal conditions, the solenoid valve 120 is in the open position biased, and trigger comparator 114 is only active when an activation switch 126 is closed, what by the leader of the drill Activation of the stripping device takes place in each case.
  • the arithmetic circuit 128 also receives an adjustable one Resistance shown setpoint generator 134 an output signal, which specifies an earth drill nominal position, in which the stripping part 80 between courses of the helical rib 52 fits.
  • the arithmetic circuit 128 calculates from the output signals the angle encoder 76, 130 and 132 that angular position of the auger 48, in which at the given position of the two carriages 14 and 18 adjacent courses of the Helical rib 52 just symmetrical with respect to the stripping part 80 lie. This angle of rotation of the earth auger 48 reached, as on the output signal of the angle encoder 66 recognizable, the computing circuit 128 generates an output signal, which via a power amplifier 136 given the control terminal of a 4/2 solenoid valve 138 that is in working lines 140, 142 of the hydraulic motor 64 is switched. In this way, the earth auger is made stopped reaching the target position.
  • the computing circuit 128 can program so that it is at a given angular position the vertical position of the same calculates the two gears of the helical rib 52 stand symmetrically to the stripping part 80. In this case is then the solenoid valve 138 in the working lines of the Hydraulic motor 74 switched. Either way the desired orientation of the auger 48 on the stripping part 80.
  • FIG 3 In the lower section of FIG 3 is a schematic readjustment for the ratio between pulling speed and rotating speed of the auger 48 according to the pitch of the helical rib 52 shown.
  • the computing circuit After a period of time necessary for the changeover of the stripping section is sufficient, the computing circuit is deactivated staying until its activation clamp again receives a rising signal edge.
  • the output signals of force sensors 100, 102 are included connected to the two inputs of a control circuit 144, which explained in more detail with reference to Figure 4 is and works on an actuator 146, the one Throttle 148 (or dashed indicated two synchronously moving chokes 148, 150) which moves into the control line for the hydraulic motor 64 are inserted.
  • the earth auger is preferably positioned 46 as well as the speed adjustment according to the slope of the helical rib 52 by changing the pressure medium supply to the hydraulic motor 64, so that the solenoid valve 138 and the controllable throttles 148, 150 inserted in series in the same work lines are.
  • the control circuit 144 sets the chokes 148, 150 in the position of maximum opening if there is no activation signal receives.
  • the force sensors 100 are 102 with inputs of radio modem parts 152, 154 connected, which modulates RF signals according to the input signals Deliver to antennas 156, 158.
  • the so emitted Measured values are collected by antennas 160, 162 which with arranged on the vehicle carrying the drill Radio modem parts 164, 166 are connected.
  • the Outputs of the latter are with first input terminals connected by error signal circuits 168, 170.
  • Adjust this at second inputs of shown as adjustable resistors Setpoint generators 172, 174 signals that the upper Specify the limit or lower limit of a window, within the stripping part 80 against the force of Compression springs 98, 104 may be movable without one Readjustment of the relationship between drawing speed and speed of rotation of the earth auger 48.
  • the error signal circuits 168, 170 operate in dependence from a characteristic curve 176, which is a sectional view is reproduced from Figure 4, the error signal E over the difference D between the two Input signals is shown.
  • the output signal of the error signal circuit 168 becomes to the one input terminal of a control circuit 178 given that at its second input terminal via a Inverter 180 the output signal of the error signal circuit 170 receives.
  • the control circuit 178 adds its two Input signals and applied with the thus obtained Sum over a performance level not shown in detail the clockwise or counterclockwise clamp of the Actuator 146.
  • the stripper 80 can the earth auger 48 completely clean it without touching the top edges the access opening 78 abuts.
  • the support rod 88 is now in the embodiment Figure 5 mounted on a plate 182 from the bottom of the carriage 14 is worn.
  • a crank arm 184 On an upper one End portion of the support rod 88 is a crank arm 184 attached, the articulated with the end of a piston rod 186 of a double-acting hydraulic cylinder 188 connected is. The latter is also from the bottom of the carriage 18 worn and so the stripping Swivel 80 between work position and rest position.
  • Has a control valve 190 for the hydraulic cylinder 188 a closed middle position in which the hydraulic cylinder 188 is locked hydraulically.
  • a wear strip 81 ' is provided which is firmly attached to the edge of the stripping part 80, e.g. is glued.
  • the further modified embodiment according to the figure 6 differs from that according to FIG. 5 on the one hand in that the plate 182 with the carriage 12th connected horizontal perpendicular to the plane of the drawing spaced guide rails 200 through the hydraulic cylinder 188 is displaceable, with the support rod now 88 is firmly connected to the plate 182.
  • the displacement route the plate 182 is so large that the stripping part 80 again from a working position adjacent to the core rod 50 into an outside of the clear contour of the drive tube 36 lying rest position is movable.
  • two wear plates are instead of the wear plate 81 81'a and 81'b provided that in new condition together have the same edge contour as the wear plate 81, i.e. correspond to half of the latter.
  • Your mounting screws 83 run in guide slots 85, which are inclined obliquely.
  • the run Guide slots 85 for the upper wear plate 81'a upwards and radially inwards and parallel below each other, while the parallel guide slots 85 for the lower wear plate 81'b downwards and radially run inwards.
  • the tangent of their angle of attack corresponds to the ratio between axial and radial Wear of the wear plates.
  • the force sensors 100, 102 on a fixed one Partly arranged can be directly via lines 202, 204 are connected to the control circuit 144, so that the modem parts 148 to 154 can be omitted.
  • the wear plates 81''a and 81''b shown there have a main section 206 of the wear plate 81'a or 81'b corresponds to the main section 206 one (radially on the inside when installed and Extension pointing axially to the center of the stripping part 80) 208 molded.
  • the extensions 208 extend over half the radial extent (longitudinal edge) of the main sections 206 of wear plates 81''a and 81''b. This can be made from a rectangular (here square) Generate plate blank in a material-saving way, that it is point symmetrical to the center of the blank double angled dividing line 210.
  • the lower wear plate obtained by such cutting is o rotated about the vertical axis in Figure 7 means 212 of the blank 180, in order to bring them into their installation orientation.
  • wear plates 81''a shown in FIG and 81''b becomes one on one side the other attached to the other side of the stripping part 80. This allows their extensions 208 to be in new condition overlap more axially and most re-adjusted Overlap the condition slightly axially (or possibly also slightly no longer overlap), so that during the a satisfactory wiping effect over the entire service life also receives for the lateral surface of the boring bar 50.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
EP97119930A 1996-11-21 1997-11-14 Dispositif pour enlever les déblais de forage d'une tarrière Expired - Lifetime EP0844364B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29620235U DE29620235U1 (de) 1996-11-21 1996-11-21 Einrichtung zum Entfernen von Bohrgut aus der Wendelrippe eines Erdbohrers
DE29620235U 1996-11-21

Publications (3)

Publication Number Publication Date
EP0844364A2 true EP0844364A2 (fr) 1998-05-27
EP0844364A3 EP0844364A3 (fr) 1999-03-17
EP0844364B1 EP0844364B1 (fr) 2001-09-26

Family

ID=8032251

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97119930A Expired - Lifetime EP0844364B1 (fr) 1996-11-21 1997-11-14 Dispositif pour enlever les déblais de forage d'une tarrière

Country Status (2)

Country Link
EP (1) EP0844364B1 (fr)
DE (2) DE29620235U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1367215A1 (fr) * 2002-05-30 2003-12-03 CASAGRANDE SpA Dispositif de nettoyage pour tariere
FR2960573A1 (fr) * 2010-05-26 2011-12-02 Robert Cavo Dispositif destine a creer des bassins enterres en vue du stockage de l'eau dans le sol et plus particulierement ceux realises au droit d'un forage, selon un outillage et une demarche specifiques

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107740566B (zh) * 2017-10-10 2024-01-30 火星盛世机械制造有限公司 建筑墙面砂浆刮平机器人
CN110130827A (zh) * 2019-06-03 2019-08-16 杭州桥遇文化传播有限公司 一种铁皮石斛养生酒生产窖

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2563861B1 (fr) * 1984-05-03 1986-08-29 Soletanche Dispositif de nettoyage de tarieres.
FR2624197A1 (fr) * 1987-12-07 1989-06-09 Spie Batignolles Procede et dispositif pour nettoyer une tariere, et machine de forage par tariere
DE3839003C2 (de) * 1988-11-18 1996-07-11 Paul Dr Behringer Vorrichtung zur Entnahme von Bodenproben mit einer Bohrschnecke

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1367215A1 (fr) * 2002-05-30 2003-12-03 CASAGRANDE SpA Dispositif de nettoyage pour tariere
FR2960573A1 (fr) * 2010-05-26 2011-12-02 Robert Cavo Dispositif destine a creer des bassins enterres en vue du stockage de l'eau dans le sol et plus particulierement ceux realises au droit d'un forage, selon un outillage et une demarche specifiques

Also Published As

Publication number Publication date
DE59704714D1 (de) 2001-10-31
DE29620235U1 (de) 1998-04-02
EP0844364A3 (fr) 1999-03-17
EP0844364B1 (fr) 2001-09-26

Similar Documents

Publication Publication Date Title
DE112011101697T5 (de) Zweirohriges Horizontalbohrsystem
DE2807440A1 (de) Rutschkupplung fuer eine vertikale lamellenjalousie
DE9010313U1 (de) Bohreinrichtung
DE3642387C2 (fr)
DE68906273T2 (de) Vorrichtung zur ausfuehrung von arbeitsvorgaengen in einem rohr.
DE2220790B2 (de) Einstellbarer Tiefenanschlag für ein tragbares kraftangetriebenes Werkzeug
CH652459A5 (de) Verschiebbare lagerung eines wellenlagers.
DE69900555T2 (de) Verfahren und vorrichtung zur übertragung von druck und/oder zugkraft
DE3911947A1 (de) Fraeswalze
DE69002583T2 (de) Reiniger für Schneckenbohrer.
EP0844364B1 (fr) Dispositif pour enlever les déblais de forage d'une tarrière
DE3141332C2 (de) Vorrichtung zum Zusammensetzen zweier ineinanderschiebbarer Teile, von denen eines wenigstens einen radial gerichteten Vorsprung aufweist
EP3702576B1 (fr) Dispositif de forage du sol et utilisation d'un dispositif de forage du sol
DE19941409C1 (de) Schneckenputzer
DE4038424C1 (en) Kelly borehole drilling arrangement - involves telescopically nested pipes connected to drill head
EP3951128A1 (fr) Dispositif de dégagement d'un espace intermédiaire hélicoïdal d'une tarière et procédé pour créer un alésage
DE4107834A1 (de) Verdraengerbohrer sowie antriebseinrichtung fuer einen solchen
EP3882398A1 (fr) Tige de forage et procédé pour mise à niveau d'un agencement de tige carrée
EP3819434A1 (fr) Procédé et dispositif de fraisage de paroi de fente permettant de créer une fente fraisée dans le sol
DE3440002C1 (de) Bohrgerät zur Herstellung von Entspannungsbohrungen über Tage
DE3621251C2 (fr)
DE4202554C1 (en) Drill rig with vertical guide rod and feed table - has drive with cable whose ends are secured to top and lower guide rod sections respectively
EP1477633A2 (fr) Procédé et dispositif pour le travail du sol
DE1777063A1 (de) Schneidwerkzeug fuer drehendes Schneiden an der Rueckseite eines Werkstuecks
DE102008056800A1 (de) Vorrichtung zum Materialtransport

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): BE DE FR IT NL

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

19U Interruption of proceedings before grant

Effective date: 19980701

19W Proceedings resumed before grant after interruption of proceedings

Effective date: 19981219

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19990913

AKX Designation fees paid

Free format text: BE DE FR IT NL

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 20010119

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE FR IT NL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20011019

Year of fee payment: 5

REF Corresponds to:

Ref document number: 59704714

Country of ref document: DE

Date of ref document: 20011031

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20011130

Year of fee payment: 5

Ref country code: FR

Payment date: 20011130

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20011214

Year of fee payment: 5

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021130

BERE Be: lapsed

Owner name: *DELMAG MASCHINENFABRIK REINHOLD DORNFELD G.M.B.H.

Effective date: 20021130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030601

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030603

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030731

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20030601

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051114