EP1068933A2 - Cheville d'ancrage expansif - Google Patents

Cheville d'ancrage expansif Download PDF

Info

Publication number
EP1068933A2
EP1068933A2 EP00810586A EP00810586A EP1068933A2 EP 1068933 A2 EP1068933 A2 EP 1068933A2 EP 00810586 A EP00810586 A EP 00810586A EP 00810586 A EP00810586 A EP 00810586A EP 1068933 A2 EP1068933 A2 EP 1068933A2
Authority
EP
European Patent Office
Prior art keywords
sleeve
shaft
support part
adapter piece
undercut
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
EP00810586A
Other languages
German (de)
English (en)
Other versions
EP1068933B1 (fr
EP1068933A3 (fr
Inventor
Werner Kaibach
Stefan Raber
Hans-Jürgen Negele
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.)
Hilti AG
Original Assignee
Hilti AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Publication of EP1068933A2 publication Critical patent/EP1068933A2/fr
Publication of EP1068933A3 publication Critical patent/EP1068933A3/fr
Application granted granted Critical
Publication of EP1068933B1 publication Critical patent/EP1068933B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B31/00—Hand tools for applying fasteners

Definitions

  • the invention relates to a dismantling device for positively anchored dowels, especially for undercut anchors that have an anchor rod with one for free End with a conically widening head section and a sleeve with radially adjustable spreading tabs exhibit.
  • anchor systems are often used to form-fit anchors.
  • the main representatives This genus of dowel systems are undercut anchors that are in holes be anchored with a prepared undercut or during the anchoring process automatically create an undercut in the prepared hole.
  • the known undercut anchors generally have an anchor rod with a head part on that widens substantially conically towards the free end.
  • a Sleeve with an expansion area is axially displaceable along the anchor rod.
  • the Spreading area of the sleeve is separated by a number of axial slots Spreading flaps equipped by exposing the sleeve to the conical Radially extendable headboard.
  • Self-tapping undercut anchors point to the Mantle surface of the spreading flaps on the cutting body, which is generated when rotating the Process the sleeve on the conical head part abrasively and thereby Create an undercut in the deepest part of the prepared hole.
  • Such a self-tapping undercut anchor is for example from the US-A-4,702,654.
  • the object of the present invention is therefore to provide a device which allows undercut anchors to be partially or fully anchored in the subsurface Dismantle completely again.
  • the device is said to be a robust and self-explanatory Have a structure and be easy to use.
  • the dismantling device comprises a sleeve-shaped support part, the one at one end, which forms a support shoulder, projects axially Has bolt extension, which is equipped with load application means.
  • the means of load application are with correspondingly designed load application means at the rear end of the The sleeve of the dowel can be brought into a tensile load-bearing operative connection.
  • the support part has a through hole provided at least in some areas with an internal thread, which extends through the bar extension and for receiving one with an external thread provided shaft, which is axially displaceable by rotation relative to the support member is.
  • the shaft has two longitudinal ends with identical coupling elements for an adapter piece whose one longitudinal section has an outside diameter, which is smaller than the inside diameter of the through hole of the support part and at the free end with a matched to the coupling elements of the shaft Connector is equipped.
  • the opposite longitudinal end of the adapter piece is as an insertion end for the tool holder of a hand machine tool, in particular a rotary drill.
  • the disassembly device allows for the first time a simple and reliable, complete disassembly of partially or completely anchored in the underground Undercut dowels.
  • These can be conventional undercut anchors that be anchored in holes with already prepared undercuts, or around self-tapping systems that are only anchored in the deepest hole Create an undercut in the area of the hole.
  • the one in the through hole the shaft interacting with the internal thread is spindle-like relative to Support part slidable.
  • the shaft is used as an adapter piece, which can either be attached to one or the other longitudinal end the shaft can be coupled.
  • the anchor rod After removing the disassembly device the anchor rod can also be removed from the hole. Then the adapter piece coupled to the second end of the shaft, and the shaft is driven by axial rotation returned to their starting position.
  • the adapter piece thus offers the advantage that it is for the actual disassembly process and by simply coupling on other end of the shaft for the subsequent return of the shaft to the initial state can be used.
  • the coupling elements are formed on the longitudinal ends of the shaft as axially projecting pins, which have a cross-section deviating from the circular shape.
  • the connector on Adapter piece is then advantageously a blind hole with one to the pin corresponding cross section.
  • a special simple and proven geometry for the coupling parts and the blind hole are represented by the hexagon.
  • the one carrying the connecting part is Longitudinal section of the adapter piece by a circumferential collar from the insertion end having section separately.
  • the outside diameter of the revolving collar is larger than the inside diameter of the through hole of the sleeve-shaped Support part. The collar prevents contact between when the shaft is reset the drill chuck of the hand drill and the load application means on the bolt extension. Thereby damage to the drill chuck and / or the load application means are avoided. Rather, as soon as the collar comes into contact with the bar extension, for automatic decoupling between the adapter piece and the shaft.
  • the longitudinal section of the adapter piece carrying the connecting part has a dimension of the support part has a coordinated length, it is ensured that the Shaft is returned to an optimal position for the next disassembly process.
  • This can prepare the disassembly device for use omitted.
  • The is preferably from the circumferential collar to the free end of the Adapter piece measured length about 20 mm to about 200 mm, preferably 30 mm up to 130 mm.
  • the load application means are on the bolt extension of the support part radially projecting pins, which correspond in trained, undercut recesses at the rear end of the sleeve of the Undercut anchors are positively locked.
  • the selected geometry of the load application means on the bar extension is easy to manufacture, robust, self-explanatory and open simple way with the load application means at the rear end of the sleeve of the undercut anchor detachable.
  • the dismantling device shown in FIGS. 1-3 in different states each provided with the reference number 1 as a whole. It includes a sleeve-shaped Support part that for reasons of better manageability and for reasons of weight for example, the dumbbell shape shown.
  • One end of the The support part forms an annular support shoulder 3.
  • a latch extension protrudes from the front end 4, the two or more, preferably designed as radial pins 5, load application means having.
  • a through hole 6 extends over the entire axial Length of the sleeve-shaped support part 2 and continues through the bolt extension 4.
  • the through hole 6 has an inner diameter i and is at least in some areas designed as an internally threaded bore.
  • the through hole is preferably 6 Provided with an internal thread over its entire length.
  • the through hole 6 serves to receive a shaft 7, which has an external thread over its entire axial length 8 is equipped.
  • the external thread 8 of the shaft 7 acts with the internal thread bore 6 together so that the shaft 7 rotates relative to the support part 2 Is axially adjustable spindle-like.
  • the shaft 7 has 9, 10 at its two longitudinal ends Identically designed coupling elements 11, for example, of pins with hexagonal Cross section are formed.
  • the shaft 7 is thus in any orientation in the Internal threaded bore 6 of the support part 2 can be screwed in.
  • the coupling elements 11 are attachable to a connector 14 of an adapter 12.
  • the connector 14 is formed, for example, as a blind hole which has an internal hexagon which on the external hexagon of the pins 11 at the longitudinal ends 9, 10 of the shaft 7 is coordinated.
  • the longitudinal section 13 of the adapter piece having the connecting part 14 12 preferably has an outer diameter a which is smaller than that Inner diameter i of the through hole 6 in the support part 2. This allows the front longitudinal section 13 inserted into the through hole 6 during the disassembly process become.
  • a circumferential collar 16 separates the front longitudinal section 13 of the Adapter part from the rear section, which as the insertion end 15 for the tool holder a rotary drilling machine is formed.
  • the circumferential collar 16 has one Outside diameter o, which is larger than the inside diameter i of the through hole 6 in the support part 2.
  • the length of the longitudinal section 13 is denoted by l and is about 20 mm to about 200 mm, preferably 30 mm to 130 mm.
  • Fig. 1 shows the disassembly device 1 in its initial position before the load application means 5 on the bolt extension 4 with the corresponding load application means on the sleeve of the undercut anchor to be disassembled.
  • the rear longitudinal end 9 of the shaft 7 projects beyond the rear end face of the support part 2.
  • the adapter piece 12 is with its insertion end 15 in the tool holder of a rotary drilling machine clamped and then via the blind hole 14 with the coupling pin 11 coupled to the rear longitudinal end 9 of the shaft 7. This is indicated by the arrow P.
  • the shaft 7 widens due to the rotary movement mediated by the rotary drilling machine screwed into the through hole 6 until the pin 11 at its front longitudinal end 10 on the anchor rod of the undercut anchor protruding from the borehole.
  • Fig. 2 shows the dismantling device 1 immediately after dismantling the sleeve of the Undercut anchor.
  • the shaft 7 is almost completely screwed into the support part 2.
  • Your front longitudinal end 10 projects beyond the bolt extension 4.
  • To screw back the Shaft 7 in its starting position is with its insertion end 15 in the tool holder of the rotary drill clamped adapter piece 12 via the blind hole 14 coupled with hexagon socket to the pin 11 at the front longitudinal end 10 of the shaft 7. This is indicated in FIG. 2 by the arrow R.
  • the shaft 7 By the rotation of the shaft 7 it is returned to its starting position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Dowels (AREA)
  • Piles And Underground Anchors (AREA)
EP20000810586 1999-07-14 2000-07-05 Cheville d'ancrage expansif Expired - Lifetime EP1068933B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19932863 1999-07-14
DE1999132863 DE19932863A1 (de) 1999-07-14 1999-07-14 Demontagevorrichtung für formschlüssig verankernden Dübel

Publications (3)

Publication Number Publication Date
EP1068933A2 true EP1068933A2 (fr) 2001-01-17
EP1068933A3 EP1068933A3 (fr) 2002-09-04
EP1068933B1 EP1068933B1 (fr) 2008-04-09

Family

ID=7914722

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000810586 Expired - Lifetime EP1068933B1 (fr) 1999-07-14 2000-07-05 Cheville d'ancrage expansif

Country Status (4)

Country Link
EP (1) EP1068933B1 (fr)
JP (1) JP4531940B2 (fr)
CN (1) CN1151013C (fr)
DE (2) DE19932863A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110241802A (zh) * 2019-05-31 2019-09-17 湖北建科国际工程有限公司 静力触探仪地锚

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010005360U1 (de) 2010-05-03 2010-08-19 Itzen, Stefan Vorrichtung zum Entfernen von Dübeln
CN110936326B (zh) * 2019-11-12 2021-08-17 福建福清核电有限公司 一种核电厂ptr换料水箱地脚螺栓拆除方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4702654A (en) 1985-10-03 1987-10-27 Upat Gmbh & Co. Spreading anchor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3940638A1 (de) * 1989-12-08 1991-06-13 Fischer Artur Werke Gmbh Demontagevorrichtung
DE4104073A1 (de) * 1991-02-11 1992-08-13 Hilti Ag Ausziehwerkzeug
DE19652280A1 (de) * 1996-12-16 1998-06-18 Hilti Ag Selbstschneidender Hinterschnittdübel
DE19712174C2 (de) * 1997-03-22 2002-10-24 Fischer Artur Werke Gmbh Ausziehwerkzeug für einen Spreizanker
DE19713541A1 (de) * 1997-04-02 1998-10-08 Fischer Artur Werke Gmbh Demontagewerkzeug für einen Spreizdübel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4702654A (en) 1985-10-03 1987-10-27 Upat Gmbh & Co. Spreading anchor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110241802A (zh) * 2019-05-31 2019-09-17 湖北建科国际工程有限公司 静力触探仪地锚

Also Published As

Publication number Publication date
EP1068933B1 (fr) 2008-04-09
JP2001081773A (ja) 2001-03-27
JP4531940B2 (ja) 2010-08-25
DE50015084D1 (de) 2008-05-21
CN1151013C (zh) 2004-05-26
DE19932863A1 (de) 2001-01-18
CN1280899A (zh) 2001-01-24
EP1068933A3 (fr) 2002-09-04

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