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EP0421067A1 - Montageeinheit mit einem Spreizanker und einem Montagewerkzeug - Google Patents

Montageeinheit mit einem Spreizanker und einem Montagewerkzeug Download PDF

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Publication number
EP0421067A1
EP0421067A1 EP90113837A EP90113837A EP0421067A1 EP 0421067 A1 EP0421067 A1 EP 0421067A1 EP 90113837 A EP90113837 A EP 90113837A EP 90113837 A EP90113837 A EP 90113837A EP 0421067 A1 EP0421067 A1 EP 0421067A1
Authority
EP
European Patent Office
Prior art keywords
expansion
expanding
shaft part
mounting
anchor
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Withdrawn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
EP90113837A
Other languages
German (de)
English (en)
French (fr)
Inventor
Artur Prof. Dr. H. C. Fischer
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
Priority claimed from DE19893931078 external-priority patent/DE3931078A1/de
Application filed by Fischerwerke Artur Fischer GmbH and Co KG filed Critical Fischerwerke Artur Fischer GmbH and Co KG
Publication of EP0421067A1 publication Critical patent/EP0421067A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/005—Attachments or adapters placed between tool and hammer

Definitions

  • the invention relates to an assembly unit with an expansion anchor and an assembly tool according to the preamble of the main claim.
  • hammering tools that can be clamped in rotary hammers and impact drills are known. These usually consist of hardened steel sleeves, via which the impact of the impact drill is transferred to the dowel sleeve.
  • a disadvantage of the known hammer-in tools is that when the drill is lowered, the hammer-in tool often falls off the drill and must be reattached if the work process is interrupted several times.
  • An expansion anchor, which can be mounted with such an impact tool, is described in DE-A 36 34 431.
  • Expansion anchors which have a rotatable shaft part which, by rotation, pushes an expansion sleeve onto an expansion cone, for this purpose the shaft part can be rotated by hand using a screwdriver or the like.
  • the invention has for its object to provide a mounting unit that uses an expansion anchor that can be expanded by rotation on the shaft part, and which uses a one-piece assembly tool that can be clamped into a drilling machine.
  • the solution to this problem is obtained in an assembly unit of the type mentioned by the features specified in the main claim.
  • the toothed ring formed on the assembly tool engages a shoulder in the shaft part during assembly and takes the shaft part with it when it rotates.
  • the expansion sleeve of the expansion anchor located between the shaft part and the expansion body is pushed onto the expansion body and thereby expanded until there is a positive connection with the masonry. If a further spreading is no longer possible, this has the consequence that the shaft part can no longer be turned, so that at this point in time the ring gear of the assembly tool on the shoulder turns.
  • the maximum torque that can be transmitted from the assembly tool to the shaft part can be set to a high value or a lower value.
  • the shoulder preferably has a narrow, inclined annular surface as a contact surface.
  • the assembly unit shown in the drawing consists of an assembly tool 1 and an expansion anchor 2, which has a threaded bolt 3 with an expansion cone 4.
  • the threaded bolt 3 protrudes into a shaft part 5, which is screwed onto the threaded bolt 3 with its internal thread 6.
  • the assembly tool 1 has a shaft 9 which can be clamped in an impact drill or the like, not shown here.
  • teeth 28 are formed which are distributed around the outer edge and which are inserted into the shaft part 5 during assembly until they abut a shoulder 26.
  • the shoulder 26 projects inwards on the internal thread 6 and forms a narrow, inclined annular surface 27 as the contact surface.
  • the teeth 28 are pressed against this annular surface 27 during assembly, so that they engage at least slightly in the metallic annular surface 27. If the assembly tool 1 is now set in rotation, the shaft part 5 of the expansion anchor 2 rotates with it. If the impact drill, into which the assembly tool 1 is clamped, is operated in the impact drilling operation, then axial impacts act on the shoulder 26, which greatly facilitates the driving in and screwing in of the expansion anchor into a drilled hole in a masonry.
  • the teeth 28 engage the ring surface 27 with their tips, so that the shaft part 5 is set in rotation.
  • the expansion body 4 with threaded bolt 3 does not rotate due to the friction existing between the expansion body 4 and the bottom of the borehole, so that the shaft part 5 is screwed axially in the direction of the expansion body 4.
  • the expansion sleeve 7 is pushed from the shaft part 5 onto the expansion body 4 and expands in the process, so that its expansion lamellae 8 engage in the undercut 17 in a form-fitting manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dowels (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Earth Drilling (AREA)
EP90113837A 1989-09-18 1990-07-19 Montageeinheit mit einem Spreizanker und einem Montagewerkzeug Withdrawn EP0421067A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19893931078 DE3931078A1 (de) 1989-05-05 1989-09-18 Montageeinheit mit einem spreizanker und einem montagewerkzeug
DE3931078 1989-09-18

Publications (1)

Publication Number Publication Date
EP0421067A1 true EP0421067A1 (de) 1991-04-10

Family

ID=6389641

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90113837A Withdrawn EP0421067A1 (de) 1989-09-18 1990-07-19 Montageeinheit mit einem Spreizanker und einem Montagewerkzeug

Country Status (7)

Country Link
EP (1) EP0421067A1 (hu)
JP (1) JPH03107606A (hu)
CN (1) CN1050350A (hu)
BR (1) BR9004631A (hu)
DD (1) DD297689A5 (hu)
HU (1) HUT55670A (hu)
PT (1) PT95315A (hu)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19720589A1 (de) * 1997-05-16 1998-11-19 Hilti Ag Bohrwerkzeug
DE102011006018A1 (de) * 2011-03-24 2012-09-27 Hilti Aktiengesellschaft Befestigungssystem
CN111749964B (zh) * 2020-05-26 2022-08-23 浙江斯泰新材料科技股份有限公司 可拆卸式旋击铆栓

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2063114A (en) * 1979-11-20 1981-06-03 Fischer Artur A power drill chuck attachment
EP0395858A1 (de) * 1989-05-05 1990-11-07 fischerwerke Artur Fischer GmbH & Co. KG Montageeinheit mit einem Spreizanker und einem Montagewerkzeug

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2063114A (en) * 1979-11-20 1981-06-03 Fischer Artur A power drill chuck attachment
EP0395858A1 (de) * 1989-05-05 1990-11-07 fischerwerke Artur Fischer GmbH & Co. KG Montageeinheit mit einem Spreizanker und einem Montagewerkzeug

Also Published As

Publication number Publication date
JPH03107606A (ja) 1991-05-08
HU905303D0 (en) 1991-02-28
PT95315A (pt) 1992-06-30
HUT55670A (en) 1991-06-28
DD297689A5 (de) 1992-01-16
CN1050350A (zh) 1991-04-03
BR9004631A (pt) 1991-09-10

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