EP0432397A2 - Dispositif de démontage - Google Patents

Dispositif de démontage Download PDF

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Publication number
EP0432397A2
EP0432397A2 EP90119222A EP90119222A EP0432397A2 EP 0432397 A2 EP0432397 A2 EP 0432397A2 EP 90119222 A EP90119222 A EP 90119222A EP 90119222 A EP90119222 A EP 90119222A EP 0432397 A2 EP0432397 A2 EP 0432397A2
Authority
EP
European Patent Office
Prior art keywords
undercut
claw
sleeve
threaded rod
borehole
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.)
Withdrawn
Application number
EP90119222A
Other languages
German (de)
English (en)
Other versions
EP0432397A3 (en
Inventor
Burkhard Mayer
Willi Haug
Hartmut Hoppe
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.)
Fischerwerke Artur Fischer GmbH and Co KG
Original Assignee
Fischerwerke Artur Fischer GmbH and Co KG
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 Fischerwerke Artur Fischer GmbH and Co KG filed Critical Fischerwerke Artur Fischer GmbH and Co KG
Publication of EP0432397A2 publication Critical patent/EP0432397A2/fr
Publication of EP0432397A3 publication Critical patent/EP0432397A3/de
Withdrawn legal-status Critical Current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
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/023—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same using screws
    • 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 according to the preamble of the main claim.
  • undercut anchors used in boreholes of masonry has not yet been satisfactorily solved.
  • Such undercut anchors have an expanding body seated on the bottom of the borehole, onto which an expansion sleeve is driven, so that the expanding sleeve engages in a form-fitting manner in an undercut of the borehole formed on the bottom of the borehole.
  • the disassembly of an undercut anchor anchored in this way is problematic since the expansion sleeve is braced in the area of the undercut with the borehole wall.
  • the invention has for its object to provide a mounting device that makes it possible to remove undercut anchors positively anchored in boreholes from the boreholes.
  • the disassembly device has a claw which engages laterally in a form-fitting manner on the sleeve of the undercut anchor.
  • an annular groove can be provided on the sleeve end of the undercut anchor protruding from the borehole, which engages the claw with parallel jaws.
  • a threaded rod which is screwed through an internally threaded part, can now be pressed against the threaded bolt of the undercut anchor during disassembly, the threaded rod being rotated by means of a screwdriver or also by hand.
  • the internal thread part is preferably provided with a through thread, so that the threaded rod protrudes at the top with a profiled section from this internal thread part.
  • the profiled section can be a hexagon, for example, which can be clamped into a drill receptacle of a drill driver.
  • the dismantling device shown in FIG. 1 consists of a threaded part 1, a claw 2 and a threaded rod 3 guided through the threaded part 1.
  • the threaded rod 3 engages with its thread in an internal thread 4 of the threaded part 1 and lies with its lower end 5 on a threaded bolt 6 of an undercut anchor 7.
  • the threaded bolt 6 has, in a manner known per se, an expansion cone 8 at the lower end, onto which expansion segments 9 of an expansion sleeve 10 are driven.
  • the expansion segments 9 positively engage in an undercut 19 of the borehole 11.
  • the expansion cone 8 lies against the bottom of the borehole.
  • the upper end of the expansion sleeve 10 protrudes from the borehole and has an annular groove 12 into which opposing jaws 13 of the claw 2 engage.
  • this has a profile 14, on which a drill or a suitable tool can be attached. If the threaded rod 3 is rotated, the threaded rod 3 experiences an axial relative movement with respect to the claw 2. This means that by rotating the threaded rod 3 it can be pressed against the threaded bolt 6, whereby the claw 2 with a corresponding tensile force at the upper end 15 of the sleeve 10 attacks. If the compressive force and the tensile force are sufficiently large, this causes the cone 8 to be pressed slightly into the masonry at the bottom of the borehole, while at the same time the sleeve 10 and the expansion slats 9 connected to it are pulled upwards. By further screwing in the threaded rod 3, the sleeve 10 can be pulled out of the borehole to such an extent that the expansion lamellae 9 are no longer in the region of the undercut 19.
  • Figure 2 which shows the longitudinal section of the dismantling device of Figure 1, one of the two opposing jaws 13 can be seen.
  • the claw 2 is connected to the threaded part 1 via a weld 16.
  • the threaded part 1 can be formed together with the claw 2 as a one-piece part.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Dowels (AREA)
EP19900119222 1989-12-08 1990-10-06 Disassembling device Withdrawn EP0432397A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19893940638 DE3940638A1 (de) 1989-12-08 1989-12-08 Demontagevorrichtung
DE3940638 1989-12-08

Publications (2)

Publication Number Publication Date
EP0432397A2 true EP0432397A2 (fr) 1991-06-19
EP0432397A3 EP0432397A3 (en) 1991-10-02

Family

ID=6395090

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900119222 Withdrawn EP0432397A3 (en) 1989-12-08 1990-10-06 Disassembling device

Country Status (2)

Country Link
EP (1) EP0432397A3 (fr)
DE (1) DE3940638A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1068933A3 (fr) * 1999-07-14 2002-09-04 HILTI Aktiengesellschaft Cheville d'ancrage expansif
CN103170946A (zh) * 2013-03-20 2013-06-26 大连奥托自动化设备有限公司 拔销器
WO2019162058A1 (fr) * 2018-02-21 2019-08-29 Fischerwerke Gmbh & Co. Kg Outil de pose et procédé de pose pour des goujons d'ancrage

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR765294A (fr) * 1933-12-08 1934-06-05 Perfectionnements apportés aux appareils dits <<arrache-poulie>>, <<arrache-moyeu>>, <<arrache-roulement>> et aux appareils analogues
FR996764A (fr) * 1945-06-07 1951-12-26 Facom Manufacture Francaise De Appareil extracteur universel

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1620084A (en) * 1925-04-27 1927-03-08 Jackson Machine & Tool Company Perch puller
US4627140A (en) * 1985-04-01 1986-12-09 Drillco Devices Limited Anchor bolt setting impact tool
GB8701462D0 (en) * 1987-01-23 1987-02-25 Harris & Edgar Ltd Tool

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR765294A (fr) * 1933-12-08 1934-06-05 Perfectionnements apportés aux appareils dits <<arrache-poulie>>, <<arrache-moyeu>>, <<arrache-roulement>> et aux appareils analogues
FR996764A (fr) * 1945-06-07 1951-12-26 Facom Manufacture Francaise De Appareil extracteur universel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WESTERN ELECTRIC TECHNICAL DIGEST vol. 8171, no. 46, April 1977, G.ANNINGER, E.KOEHLER: "CONCRETE ANCHOR REMOVAL TOOL" *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1068933A3 (fr) * 1999-07-14 2002-09-04 HILTI Aktiengesellschaft Cheville d'ancrage expansif
CN103170946A (zh) * 2013-03-20 2013-06-26 大连奥托自动化设备有限公司 拔销器
WO2019162058A1 (fr) * 2018-02-21 2019-08-29 Fischerwerke Gmbh & Co. Kg Outil de pose et procédé de pose pour des goujons d'ancrage

Also Published As

Publication number Publication date
DE3940638A1 (de) 1991-06-13
EP0432397A3 (en) 1991-10-02

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