EP0043000B1 - Outil de forage à organes coupants expansibles - Google Patents

Outil de forage à organes coupants expansibles Download PDF

Info

Publication number
EP0043000B1
EP0043000B1 EP81104350A EP81104350A EP0043000B1 EP 0043000 B1 EP0043000 B1 EP 0043000B1 EP 81104350 A EP81104350 A EP 81104350A EP 81104350 A EP81104350 A EP 81104350A EP 0043000 B1 EP0043000 B1 EP 0043000B1
Authority
EP
European Patent Office
Prior art keywords
shaft
tool
bore
cutting tool
cutter feed
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
Application number
EP81104350A
Other languages
German (de)
English (en)
Other versions
EP0043000A1 (fr
Inventor
Heinrich Liebig
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT81104350T priority Critical patent/ATE7325T1/de
Publication of EP0043000A1 publication Critical patent/EP0043000A1/fr
Application granted granted Critical
Publication of EP0043000B1 publication Critical patent/EP0043000B1/fr
Expired 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
    • E21B10/00—Drill bits
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/83—Tool-support with means to move Tool relative to tool-support
    • Y10T408/85—Tool-support with means to move Tool relative to tool-support to move radially
    • Y10T408/858—Moving means including wedge, screw or cam
    • Y10T408/8588—Axially slidable moving-means
    • Y10T408/85884—Tool pivotally mounted on support
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T82/00—Turning
    • Y10T82/12—Radially moving rotating tool inside bore
    • Y10T82/125—Tool simultaneously moving axially
    • Y10T82/128—Pivoted to tool-carrier

Definitions

  • the invention relates to a drilling tool for producing undercuts in pilot holes in masonry, concrete, stone and.
  • a rotatably drivable tool shaft that can be inserted into the pilot hole to be provided with the undercut, in the end region of which at least one cutting tool is arranged such that its cutting edge can gradually be displaced radially outward into the wall of the pilot hole after the shaft has been inserted into the pilot hole, wherein the cutting tool is arranged on a pivotable in a longitudinal slot-like recess in the bore-inner end portion of the tool shank, designed as a two-armed lever cutting tool carrier, which through the bore-inner end of a longitudinally displaceable but rotationally penetrating through the tool shaft, with its outer end from the outer end End of the tool shank led out feed shaft from a position pivoted back into the slot-like recess by inserting the feed shaft into the tool shaft into a position in which the cutting tool from the tool shank.
  • the machined drilling dust from the wall of the hole is placed in the recess in the cutting tool holder, it can happen in isolated cases that the swiveling of the cutting tool holder into the recess, which is necessary after the drilling process, is hindered, and the force of the spring is not sufficient to retract the cutting tool completely into the recess, so that additional manipulations are required to remove the undercut tool from the bore.
  • the cutting tool is swiveled back into the tool shaft after completion of the undercut after the cam has been withdrawn either only by pressure exerted on the cutting tools by the wall of the hole when the entire drilling tool is withdrawn from the bore (DE-B-1207907) or a link-like connection which additionally supports this pressure between the infeed shank and the cutting tool holder, in which a pin from the infeed shaft engages in a cam slot in the cutting tool holder (CH-A-495492).
  • the invention has for its object to increase the drilling performance of the drilling tool compared to the known drilling tool in that a comparatively higher radial feed force can be exerted on the cutting tool, both when pivoting the cutting tool during the undercut drilling process and when retracting of the cutting tool after the drilling process against any inhibitions caused by drilling dust which may have penetrated into the interior of the tool.
  • the cutting tool carrier has on its rear side opposite the cutting tool on its bore-inside lever arm a pressure surface which is inclined to the direction of displacement of the feed shaft which engages a delivery cam formed on the inside of the bore of the feed shank, which pivots the bore-inside lever arm of the cutting tool carrier when the feed shaft shifts relative to the tool shaft into the bore with an increasingly larger lever arm out of the recess of the tool shaft, and that the back of the bore-mouth lever arm of the cutting tool carrier is one Lever arm inside the bore has oppositely inclined pressure surface on which the feed cam engages out of the bore inside when the feed shank is displaced relative to the tool shank.
  • the feed shaft in the area led out of the tool shaft on the one hand and on the tool shaft Delivery shaft supports supported coil springs that are under pressure.
  • the helical spring is expediently supported on the bore-mouth end face of the tool shank on the one hand and the end face of a collar component provided on the feed shank on the other hand, whereby it may be expedient to design the collar component in selectable axial positions on the area of the feed shank protruding from the tool shank, since in this way the Bias of the coil spring is changeable.
  • the helical spring is expediently arranged within a sleeve attached to the end of the tool shank, in which the front end of the collar component facing the bore engages in a longitudinally displaceable manner.
  • the coil spring is therefore completely encapsulated within the sleeve.
  • the rotationally fixed and longitudinally displaceable coupling of the feed shank to the tool shank is brought about by a pin provided in a transverse bore in the tool shank and penetrating an elongated hole in the feed shank.
  • this coupling can also take place in that a section provided with a multi-wedge profile is provided on the feed shaft, which is arranged in a sleeve section of the tool shaft provided with a complementary multi-wedge profile in a rotationally fixed but longitudinally displaceable manner.
  • the feed shank in its area led out of the tool shank is designed as a multi-wedge shank section, which at its front end facing the tool shank is still partly in a sleeve-shaped section of the tool shank with an inner multi-wedge profile complementary to the multi-wedge profile of the multi-wedge shank section engages, the sleeve section provided with the multi-wedge profile being dimensioned such that the multi-wedge shaft section can be displaced into the sleeve section by the amount required for pivoting the cutting tool carrier.
  • a resilient return of the feed shank relative to the tool shank can be provided to simplify the handling of the tool, in that a compression spring supported on the front end face of the multi-spline shank section on the one hand and on the bottom of the sleeve section on the tool shank on the other hand is provided in the sleeve section is arranged.
  • a functional improvement of the tools designed in the manner according to the invention is achieved in that the slot-like recess for receiving the cutting tool carrier extends into the section of the tool shank lying in front of the cutting tool carrier in the insertion direction and to a receiving pocket for the material worked out by the cutting tool from the wall of the pilot hole (drilling dust ) is designed. Obstacles to the pivoting-out process of the cutting tool carrier due to drilling dust collecting in the recess are thus avoided.
  • the feed shank can be drilled in the middle over its entire length for this purpose, so that it On the cutting tool side, the bore opens into the recess in the tool shank that receives the cutting tool carrier.
  • a device for extracting the drilling dust from the machine-side mouth of the bore must then be provided in the drive machine receiving the drilling tool.
  • the drilling tool according to the invention shown in the drawing designated in its entirety by 10, for drilling an undercut in a cylindrical pilot hole previously produced in a customary manner in an underground of stone, concrete, masonry or the like has a tool shank 12, in which in the A front-end region to be introduced into the pre-bore is provided with a longitudinal slot-like recess 14 that is open on one side.
  • a cutting tool carrier 18 is mounted on a bolt 16 in the form of a flat, elongated, two-armed lever fitted in the width of the recess 14, on the lever arm 18a on the inside of the bore, which is located in the drawing below, on the front side facing the open side of the recess
  • the actual cutting tool 20 is arranged, which is formed, for example, by a hard metal plate which is hard-soldered into a suitable receptacle of the cutting tool carrier 18 and on which the cutting edges which are designed in accordance with the shape of the undercut to be produced are ground.
  • the tool shank 12 has a longitudinal center bore 22 extending from its outer bore end to the recess 14, in which a feed shank 24 is inserted so as to be longitudinally displaceable but non-rotatable, which still emerges from the tool shank 12 to a considerable extent.
  • the rotation is secured by a pin 30 penetrating a transverse bore 26 in the tool shank 12 and an elongated hole 28 in the additional shank 24.
  • the longitudinal center bore and the feed shank could also - at least in a partial area - be complementarily polygonal in cross section, e.g. B. be square or hexagonal, or the rotation of the shafts 12, 24 relative to each other can alternatively be prevented by a tongue and groove connection.
  • the free end of the end of the feed shaft 24 protruding from the tool shaft 12 is designed as a hexagon at 32.
  • the back of the lever arm 18a of the cutting tool carrier 18, which is opposite the cutting tool 20, is designed as a pressure surface 34 which extends obliquely to the direction of displacement of the infeed shaft 24, namely its inclination is selected such that it relates to the right in relation to the position of the drilling tool shown in the drawing opening recess 14 runs from top right to bottom left.
  • a feed cam 36 attached to the lower end of the feed shaft 24 and guided past the rear of the second lever arm 18b on the bore mouth side can be brought into contact with the pressure surface 34 by pushing the feed shaft into the tool shaft with its somewhat rounded front end.
  • the delivery cam 36 supported with its rear side on the closed side of the recess urges the pressure surface 34, i. H.
  • the rear of the lever arm 18b on the bore mouth side of the cutting tool carrier 18 is also designed as a pressure surface 38, which is inclined in the opposite direction to the pressure surface 34.
  • the complementarily inclined surface 40 of the feed cam 36 runs against the pressure surface 40 and inevitably pivots the cutting tool carrier 18 when the feed shank 24 is retracted in such a way that the cutting tool 20 is returned to the recess 14.
  • the drilling tool 10 is already functional to the extent described so far, but its handling is improved in practice in that a helical spring 42 surrounding it is arranged in the area of the delivery shaft 24 which is led out of the tool shaft 12, the lower end of which is on the bore mouth side End face of the tool shank 12 is supported, while its other end rests under pressure on the end face facing the bore of a collar component 44 pushed onto the feed shank 24 and fastened thereon.
  • a collar component can be fastened in selectable axial positions on the feed shaft 24 in a radial threaded bore 46 screwed into the collar component 44.
  • the bias of the coil spring 24 can therefore be changed to a certain extent.
  • the coil spring 42 is surrounded by a sleeve 50 which is attached to the end of the tool shank 12 and in the other end of which the collar component 44 fits d. H. engages longitudinally.
  • An enlarged receiving pocket 52 which continues the recess 14 in the insertion direction and continues the recess 14, serves to receive the drilling dust worked out by the cutting tool 20 from the wall of a pilot hole. Jamming of the cutting tool carrier 18 in the pivoted-out position by accumulated in the recess 14 behind the pivoted-out cutting tool carrier This avoids drilling dust. Even if drilling dust should have accumulated in this area, it is displaced into the receiving pocket 52 when the delivery shaft is pulled back.
  • the drilling tool 110 shown in FIGS. 2 and 3 differs from the drilling tool 10 described above essentially only in the manner of the rotationally fixed but longitudinally displaceable coupling of the feed and tool shafts, so that it is sufficient to describe only this coupling below, while referring to the general description of the drilling tool 110, the foregoing description.
  • the parts of the drilling tool 110 which correspond to the parts of the drilling tool 10 are identified by the same reference numerals, but with the preceding 1.
  • the feed shaft 124 of the drilling tool 110 carries a pressed-on or otherwise rigidly fastened multi-wedge body 160 which engages in a sleeve section 162 provided with a complementary multi-wedge profile at the rear end of the tool shaft 112, the length of the sleeve section 162 in relation to the multi-wedge body 160 is dimensioned such that the multi-wedge body 160 can be pushed into the sleeve section 162 against the action of the spring 142 by the feed path required for the pivoting of the cutting tool carrier 118.
  • the feed shank 124 is provided with a continuous longitudinal center bore 164, which makes it possible for the drilling dust which collects when working with the tool 110 in the recess 114 receiving the cutting tool carrier 118 to be continuously sucked off if the drive machine for the tool has a corresponding suction device is provided.
  • the rotationally fixed and longitudinally displaceable connection of the feed shank 224 to the tool shank 212 takes place by means of a multi-spline connection.
  • the area of the feed shank 224 which is led out of the tool shank 212 is designed overall as a multi-wedge shank section 260 which, at its front end facing the tool shank 212, engages somewhat in a sleeve-shaped section 262 at the rear end of the tool shank.
  • this sleeve-shaped section 262 is provided with a multi-wedge profile that is complementary to the multi-spline profile of the shaft section 260, as a result of which a positive connection between the shaft section 260 and the sleeve section 262 is provided in the direction of rotation of the tool.
  • the sleeve section 262 is in turn dimensioned such that the multi-wedge shaft section 260 can be pushed into the sleeve section 262 by the required feed path.
  • the compression spring 242 which supports the restoration, is supported between the front end face 261 of the multi-spline shank section 260 on the one hand and on the bottom 263 of the sleeve section 262 on the tool shank 212 on the other hand.
  • the feed shaft 224 can be provided with a longitudinal center bore 264 (FIG. 5) for suctioning off the drilling dust during the drilling process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Earth Drilling (AREA)
  • Drilling And Boring (AREA)

Claims (11)

1. Outil à forer (10 ; 110 ; 210) pour l'exécution de contredépouilles dans des avant-trous prévues dans la maçonnerie, le béton, la pierre et les matières analogues, comportant un corps (12 ; 112 ; 212) pouvant être introduit dans l'avant-trou à pourvoir de la contredépouille et être mis en rotation, dans la partie extrême duquel au moins un outil coupant (20 ; 120 ; 220) est placé de façon que son arête coupante, après l'introduction du corps dans l'avant-trou, puisse être enfoncée progressivement, radialement vers l'extérieur, dans la paroi de l'avant-trou, cet outil coupant (20 ; 120 ; 220) étant placé sur un support d'outil coupant (18 ; 118 ; 218) formé d'un levier à deux bras et monté basculant dans un évidement longitudinal du genre fente (14 ; 114 ; 214) prévu dans la partie extrême du corps (12 ; 112; 212) intérieure au trou, support qui, par l'extrémité intérieure au trou d'une tige d'avance (24 ; 124 ; 224) qui traverse le corps avec liberté de déplacement longitudinal d'une amplitude fixée mais sans liberté de rotation et sort à son extrémité extérieure de l'extrémité extérieure du corps, peut être basculé, par enfoncement de cette tige d'avance dans le corps, d'une position de retrait dans l'évidement du genre fente (14 ; 114; 214) à une position dans laquelle l'outil coupant (20 ; 120 ; 220) saille du corps, caractérisé par le fait que le support d'outil coupant (18 ; 118 ; 218) présente sur le côté arrière opposé à l'outil coupant (20 ; 120 ; 220), sur son bras intérieur au trou (18a), une surface de pression (34 ; 134 ; 234) oblique par rapport à la direction de déplacement de la tige d'avance (24 ; 124 ; 224), surface qui est attaquée par une came d'avance (36 ; 136 ; 236) faite à l'extrémité intérieure au trou de la tige d'avance (24 ; 124 ; 224), came qui, lors d'un déplacement de la tige d'avance (24 ; 124 ; 224) par rapport au corps (12 ; 112 ; 212) vers l'intérieur du trou, fait basculer le bras intérieur au trou (18a) du support d'outil coupant (18 ; 118 ; 218) hors de l'évidement (14 ; 114 ; 214) avec allongement du bras de levier, et que le côté arrière du bras côté orifice du trou (18b) du support d'outil coupant (18 ; 118 ; 218) présente une surface de pression (38 ; 138 ; 238) inclinée en sens contraire de celle du bras intérieur au trou (18a), surface qui, lors d'un déplacement de la tige d'avance (24 ; 124 ; 224) par rapport au corps (12 ; 112 ; 212) vers l'extérieur du trou, est attaquée par la came d'avance (36 ; 136 ; 236).
2. Outil à forer selon la revendication 1, comportant un support d'outil coupant (18 ; 118 ; 218) précontraint en position de retrait par un ressort, caractérisé par le fait que la tige d'avance (24 ; 124 ; 224) porte dans sa partie qui sort du corps (12 ; 112; 212) de l'outil ce ressort (42 ; 142), hélicoïdal et comprimé, qui s'appuie d'un côté sur le corps de l'outil et de l'autre côté sur la tige d'avance.
3. Outil à forer selon la revendication 2, caractérisé par le fait que le ressort hélicoïdal (42 ; 142) s'appuie d'un côté sur la face frontale côté orifice du trou du corps (12 ; 112) et de l'autre côté sur la face frontale d'un élément à collet (44 ; 144) prévu sur la tige d'avance (24 ; 124).
4. Outil à forer selon la revendication 3, caractérisé par le fait que l'élément à collet (44 ; 144) peut être fixé dans des positions axiales choisies sur la partie de la tige d'avance (24 ; 124) qui sort du corps (12 ; 112) de l'outil.
5. Outil à forer selon l'une des revendications 2 à 4, caractérisé par le fait que le ressort hélicoïdal (42 ; 142) est entouré d'une douille (50 ; 150) rapportée à l'extrémité du corps (12 ; 112) et dans laquelle est engagée avec liberté de déplacement longitudinal l'extrémité avant de l'élément à collet (44 ; 144) dirigée vers le trou.
6. Outil à forer selon l'une des revendications 1 à 5, caractérisé par le fait que la tige d'avance (24) est accouplée au corps (12) de l'outil sans liberté de rotation mais avec liberté de déplacement longitudinal par une goupille (30) prévue dans un trou transversal (26) du corps (12) et traversant une fente longitudinale (28) de la tige d'avance (24).
7. Outil à forer selon l'une des revendications 1 à 5, caractérisé par le fait que sur la tige d'avance (124) est prévu un corps cannelé (160) qui est monté sans liberté de rotation mais avec liberté de déplacement longitudinal dans une partie en forme de douille (162) du corps ayant un profil cannelé intérieur complémentaire de celui du corps cannelé (160).
8. Outil à forer selon la revendication 1, caractérisé par le fait que la partie (260) de la tige d'avance (224) qui sort du corps (212) est cannelée et, à son extrémité avant dirigée vers le corps (212), s'engage un peu dans une partie en forme de douille (262) du corps (212) ayant un profil cannelé intérieur complémentaire du profil cannelé de la partie de tige cannelée (260), et que la partie douille (262) à profil cannelé intérieur est de longueur telle que la partie de tige cannelée (260) puisse y être enfoncée de la quantité nécessaire au basculement du support d'outil coupant (218).
9. Outil à forer selon la revendication 8, comportant un support d'outil coupant (218) précontraint en position de retrait par un ressort, caractérisé par le fait que le ressort (242), de compression, est placé dans la partie douille (262) du corps (212), appuyé d'un côté sur la face frontale avant (261) de la partie de tige cannelée (260) et de l'autre côté sur le fond (263) de la partie douille (262).
10. Outil à forer selon l'une des revendications 1 à 9, caractérisé par le fait que l'évidement du genre fente (14 ; 114 ; 214) destiné à recevoir le support d'outil coupant (18 ; 118 ; 218) se prolonge dans la partie du corps (12 ; 112; 212) située, dans le sens d'enfoncement, en avant du support d'outil coupant (18 ; 118 ; 218) pour former une poche réceptrice (52 ; 152 ; 252) pour le recueil de la matière enlevée de la paroi de l'avant-trou par l'outil coupant (20 ; 120 ; 220).
11. Outil à forer selon l'une des revendications 7 à 10, caractérisé par le fait que la tige d'avance (124 ; 224) est traversée par un trou longitudinal (164 ; 264) qui, du côté de l'outil coupant, débouche dans l'évidement (114 ; 214) du corps (112 ; 212) qui reçoit le support d'outil coupant (118 ; 218).
EP81104350A 1980-06-30 1981-06-05 Outil de forage à organes coupants expansibles Expired EP0043000B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81104350T ATE7325T1 (de) 1980-06-30 1981-06-05 Hinterschnitt-bohrwerkzeug.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3024656 1980-06-30
DE3024656A DE3024656C2 (de) 1980-06-30 1980-06-30 Hinterschnitt-Bohrwerkzeug

Publications (2)

Publication Number Publication Date
EP0043000A1 EP0043000A1 (fr) 1982-01-06
EP0043000B1 true EP0043000B1 (fr) 1984-05-02

Family

ID=6105980

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81104350A Expired EP0043000B1 (fr) 1980-06-30 1981-06-05 Outil de forage à organes coupants expansibles

Country Status (7)

Country Link
US (1) US4411324A (fr)
EP (1) EP0043000B1 (fr)
JP (1) JPS5739915A (fr)
AT (1) ATE7325T1 (fr)
CA (1) CA1157464A (fr)
DE (1) DE3024656C2 (fr)
ES (1) ES503444A0 (fr)

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4502554A (en) * 1982-06-02 1985-03-05 Jones Richard H Expansible tool for reaming frustoconical undercuts in cylindrical holes
US4586573A (en) * 1982-06-02 1986-05-06 Jones Richard H Rotary expansion tool for reaming frustoconical undercuts in the walls of cylindrical holes
JPS59184608A (ja) * 1983-04-05 1984-10-20 産機興業株式会社 穿孔拡開ドリル
DE3327409A1 (de) * 1983-07-29 1985-02-07 Hawera Probst Gmbh + Co, 7980 Ravensburg Bohrwerkzeug zur herstellung von hinterschneidungen in vorgefertigten bohrungen
JPS60145005U (ja) * 1984-03-08 1985-09-26 株式会社ミヤナガ 拡径孔部削成装置
US4635737A (en) * 1984-03-08 1987-01-13 Kabushiki Kaishi Miyanaga Undercutting drill
US4630978A (en) * 1985-10-03 1986-12-23 Terry L. Keiser Thread chasing tool
IT1204117B (it) * 1986-01-28 1989-03-01 Luciano Frazzoli Attrezzo per eseguire lamature su macchine utensili in particolare all'estremita' non accessibile di fori passanti
JPH0829445B2 (ja) * 1986-12-16 1996-03-27 株式会社ミヤナガ 上向き拡径孔部削成装置
JPH01148214U (fr) * 1988-03-30 1989-10-13
DE3818079A1 (de) * 1988-05-27 1989-12-07 Plica Werkzeugfabrik Ag Fraeswerkzeug und verfahren zum ausfraesen zylindrischer bohrloecher
DE3819833C2 (de) * 1988-06-10 1998-05-07 Drebo Werkzeugfab Gmbh Dübelbohrer
GB2223550A (en) * 1988-09-16 1990-04-11 Water Res Centre Pipe tapping
DE3839617A1 (de) * 1988-11-24 1990-05-31 Fischer Artur Werke Gmbh Vorrichtung zur herstellung einer hinterschneidung in einem bohrloch
DE3909481A1 (de) * 1989-03-22 1990-09-27 Adolf Wuerth Gmbh & Co Kg Bohrwerkzeug
DE69005547T2 (de) * 1989-07-14 1994-06-23 David Patrick Payne Bohrer.
US5086852A (en) * 1990-08-27 1992-02-11 Wada Ventures Fluid flow control system for operating a down-hole tool
GB2297052B (en) * 1995-01-23 1998-02-18 David Patrick Payne Improvements in drills
JP2862830B2 (ja) * 1996-03-13 1999-03-03 株式会社ミヤナガ アンダーカット部付き孔の穿孔装置
US5800148A (en) * 1997-12-03 1998-09-01 Wise; Michael A. Blind-taper hole saw
US5927911A (en) * 1998-10-19 1999-07-27 R. Steiner Technologies, Inc. Automatic fluid actuated spotfacing and counterboring tool
EP1622499A2 (fr) * 2003-04-17 2006-02-08 Secant Medical, LLC Outil a lame de coupe pouvant etre deployee
CN1315627C (zh) * 2004-09-24 2007-05-16 徐洁媛 一种深孔绞刀具
JP2006095658A (ja) * 2004-09-30 2006-04-13 Asahi Maintenance Kogyo:Kk 管体の切削及び／又は切断装置
US7357613B2 (en) * 2006-01-26 2008-04-15 Simpson Strong -Tie Company, Inc. Expansion anchor with crack-arresting groove
EP2313223A4 (fr) * 2008-07-18 2012-01-04 Sandvik Inc Outil d'alésage inverse avec actionnement par agent de refroidissement
DE102008044802B4 (de) * 2008-08-28 2014-10-23 Edith & Gerhard Esberger GbR Werkzeug zur spanabhebenden Bearbeitung von in einem Gestell fest eingespannten Werkstücken
US8122978B1 (en) 2009-05-05 2012-02-28 John Clifford Drilling device with undercutting
DE102012005246A1 (de) * 2012-03-14 2013-09-19 Ulf Heule Entgratwerkzeug zur Entgratung von insbesondere unrunden Ausnehmungen in Werkstücken
US9089905B1 (en) * 2012-05-30 2015-07-28 The Boeing Company Omni-directional deburring blade
KR101675451B1 (ko) * 2013-08-23 2016-11-11 가부시키 가이샤 미야나가 확경 구멍부가 있는 구멍의 천공 장치
CN103603602B (zh) * 2013-10-29 2016-08-17 河南理工大学 变推力变径钻
US20150313611A1 (en) * 2014-05-02 2015-11-05 Howmedica Osteonics Corp. Undercutting bone drills and methods of use
BR122022014776B1 (pt) 2014-10-19 2023-12-26 T.A.G. Medical Devices - Agriculture Cooperative Ltd Conjunto incluindo um sistema de orientação e dispositivo para remoção de material ósseo e método para perfuração de um túnel ósseo em um osso
US10448959B2 (en) * 2015-04-09 2019-10-22 T.A.G. Medical Devices—Agriculture Cooperative Ltd. Bone material removal device and a method for use thereof
WO2017137998A2 (fr) 2016-02-11 2017-08-17 T.A.G. Medical Devices - Agriculture Cooperative Ltd. Dispositif de retrait de matière osseuse et procédé pour l'utiliser
US11020132B2 (en) 2016-04-24 2021-06-01 T.A.G. Medical Devices—Agriculture Cooperative Ltd. Guiding device and method of using thereof
US10808481B2 (en) 2017-11-16 2020-10-20 Weatherford Technology Holdings, Llc Apparatus and method for cutting casings
CA3105930C (fr) 2018-08-01 2023-01-31 T.A.G. Medical Devices - Agriculture Cooperative Ltd. Dispositif de percage reglable et son procede d'utilisation
US11780015B2 (en) * 2021-06-08 2023-10-10 Noga Engineering & Technology (2008) Ltd. Machining tool with deployable blade
EP4122629A1 (fr) 2021-07-19 2023-01-25 Fundación Tekniker Mécanisme d'actionnement pour le mouvement radial d'un outil de coupe d'une barre de forage

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US473909A (en) * 1892-05-03 Rock-drilling apparatus
US165787A (en) * 1875-07-20 Improvement in expansion-drills
US226067A (en) * 1880-03-30 Peters
US1045670A (en) * 1912-01-04 1912-11-26 Arthur P Buck Well-reaming implement.
US1450053A (en) * 1921-07-11 1923-03-27 Expansion Drill Company Expansion drill
US1955631A (en) * 1933-06-22 1934-04-17 Laurence V D Harris Counter boring tool
US2203011A (en) * 1937-04-08 1940-06-04 Guy P Ellis Pipe cutter
US2202986A (en) * 1939-07-24 1940-06-04 James T Ellis Pipe cutter
US2599060A (en) * 1951-02-09 1952-06-03 Archer W Kammerer Expansible rotary drill bit
DE1191769B (de) * 1960-03-11 1965-04-29 Archer William Kammerer Erweiterungsrollenmeissel
DE1207907B (de) * 1962-09-07 1965-12-30 Servco Co Bohrlochwerkzeug
GB1184106A (en) * 1967-04-18 1970-03-11 John Darbyshire & Company Ltd Improvements in or relating to Reamers
CH495492A (de) * 1968-12-31 1970-08-31 Navenby Ltd Bohrwerkzeug zum Herstellen von Ankerbohrungen im Erdreich
US3684041A (en) * 1970-11-16 1972-08-15 Baker Oil Tools Inc Expansible rotary drill bit
DE2731901A1 (de) * 1977-07-14 1979-02-01 Heinrich Liebig Hinterschnitt-bohrwerkzeug

Also Published As

Publication number Publication date
EP0043000A1 (fr) 1982-01-06
DE3024656A1 (de) 1982-01-21
US4411324A (en) 1983-10-25
CA1157464A (fr) 1983-11-22
ES8204334A1 (es) 1982-05-16
ES503444A0 (es) 1982-05-16
ATE7325T1 (de) 1984-05-15
JPS5739915A (en) 1982-03-05
DE3024656C2 (de) 1982-08-12

Similar Documents

Publication Publication Date Title
EP0043000B1 (fr) Outil de forage à organes coupants expansibles
EP0434924B1 (fr) Dispositif pour forer un puits adjacent ou dévié à partir d'un puits, notamment d'un puits tubé
DE10357810B4 (de) Drehbarer Einsatz mit einer elastischen, spielbehafteten Sicherungshülse
DE3234552C2 (de) Vorrichtung zum Herstellen eines Gesteinsbohrlochs
DE2602238A1 (de) Bohrkrone
CH616355A5 (fr)
CH678834A5 (fr)
DE3507817A1 (de) Bohrer zur erzeugung einer hinterschneidung in einer bohrung
DE2409629A1 (de) Bergbauliches vortriebswerkzeug (drehschaftmeissel)
DE69004316T2 (de) Bohrwerkzeug.
DE69119402T2 (de) Im bohrloch zu gebrauchendes bohrwerkzeug zum bohren vor einer verrohrung
EP3323556A1 (fr) Appareil de fixation comprenant des arbres d'entraînement pouvant être bloqués axialement, procédé de fixation et ancre extensible associée
EP0065284B1 (fr) Alésoir
DE60025395T2 (de) Verriegelbare bohrstange sowie aufnahme
EP0343653B1 (fr) Outil à fraiser et procédé pour agrandir des trous de type cylindrique
DE102019008156A1 (de) Fräsmeißel für eine Bodenfräsmaschine, Montageeinheit mit einem solchen Fräsmeißel und einer Spannschraube, Meißelhalter, Meißelhaltersystem, Fräswalze und Bodenfräsmaschine sowie Verfahren zur Montage eines Fräsmeißels in einem Meißelhalter
EP0808696B1 (fr) Système de fixation et procédé de réalisation de fixations
DE1533700B1 (de) Bohrmeissel zum Eintreiben eines Futterrohres in das Bohrloch
DE2652366C2 (de) Hinterschnitt-Bohrwerkzeug
DE19527138C1 (de) Vorrichtung zum Ersetzen einer alten Versorgungsleitung durch eine neue Leitung
DE2305133A1 (de) Bohrvorrichtung mit einer bohrspindel und einem in senkrechter ebene vor dieser bewegbaren magazin
CH632311A5 (en) Drilling tool for drilling holes widening in the drilling direction
EP0211997A1 (fr) Outil de chambrage
DE2621809A1 (de) Bohreinrichtung mit einem auswechselbaren gesteinsbohrer, insbesondere einem schlagbohrer, einem hammerbohrer u.dgl.
EP0334806A1 (fr) Couronne de forage de roche

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

Designated state(s): AT BE CH FR GB IT NL SE

17P Request for examination filed

Effective date: 19820122

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 7325

Country of ref document: AT

Date of ref document: 19840515

Kind code of ref document: T

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

Ref country code: FR

Payment date: 19840529

Year of fee payment: 4

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19840630

Year of fee payment: 4

Ref country code: BE

Payment date: 19840630

Year of fee payment: 4

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

Ref country code: CH

Payment date: 19840710

Year of fee payment: 4

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

Ref country code: AT

Payment date: 19860620

Year of fee payment: 6

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

Ref country code: NL

Payment date: 19870630

Year of fee payment: 7

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

Ref country code: GB

Effective date: 19880605

Ref country code: AT

Effective date: 19880605

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

Ref country code: SE

Effective date: 19880606

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

Ref country code: LI

Effective date: 19880630

Ref country code: CH

Effective date: 19880630

BERE Be: lapsed

Owner name: LIEBIG HEINRICH

Effective date: 19880630

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

Ref country code: NL

Effective date: 19890101

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee
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: 19890228

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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: BE

Effective date: 19890630

EUG Se: european patent has lapsed

Ref document number: 81104350.4

Effective date: 19890220