EP0240866A1 - Attache de serrage - Google Patents

Attache de serrage Download PDF

Info

Publication number
EP0240866A1
EP0240866A1 EP87104541A EP87104541A EP0240866A1 EP 0240866 A1 EP0240866 A1 EP 0240866A1 EP 87104541 A EP87104541 A EP 87104541A EP 87104541 A EP87104541 A EP 87104541A EP 0240866 A1 EP0240866 A1 EP 0240866A1
Authority
EP
European Patent Office
Prior art keywords
cover plate
profiles
channel profiles
upper link
upper cover
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
EP87104541A
Other languages
German (de)
English (en)
Other versions
EP0240866B1 (fr
Inventor
Ernst-Dieter Wesener
Klaus Goyer
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.)
Peiner Umformtechnik GmbH
Original Assignee
Peiner Umformtechnik GmbH
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 Peiner Umformtechnik GmbH filed Critical Peiner Umformtechnik GmbH
Publication of EP0240866A1 publication Critical patent/EP0240866A1/fr
Application granted granted Critical
Publication of EP0240866B1 publication Critical patent/EP0240866B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/14—Lining predominantly with metal
    • E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
    • E21D11/22—Clamps or other yieldable means for interconnecting adjacent arch members either rigidly, or allowing arch member parts to slide when subjected to excessive pressure

Definitions

  • the invention relates to a tensioning connection for gutter profiles which lie one inside the other in the overlap area and have approximately the same cross-section, for pit construction, consisting of a resilient upper link and a resilient lower link, the upper link and the lower link surrounding the channel profiles in a box-like manner and screwed together at their ends, but allow the channel profiles to slide relative to one another when the rock pressure changes.
  • tensioning device The purpose of such a tensioning device is to ensure that the channel profiles can slide into one another if the rock pressure is so great that the frictional resistance generated by the tensioning connection is exceeded. It is desirable that when this state occurs, the sliding takes place gently with small stress amplitudes, so that the tensioning connection is immediately relieved again when the displacement movement comes to a standstill again.
  • the invention has for its object to provide a clamping connection of the type mentioned, which ensures smooth sliding and which is characterized by a high level of break resistance.
  • the upper plate and the lower plate consist of spring steel of the same width over their entire length, that the upper plate is provided with square holes for the threaded bolts, in each of which a matching square under the head of the threaded bolt engages, and that the threaded bolts are made of a material with an elasticity of at least 15%.
  • the invention is inexpensive because band spring steel can be used, which only needs to be cut from available batches and then shaped, it being possible to provide a sufficient width which prevents tilting when the channel profiles are moved.
  • the square under the head of the screw is also able to transmit high torsional moments.
  • the transmission of the torsional forces over the square always ensures that the screw head is fully supported.
  • This design of the connecting screw means that the torsional moments are absorbed by the shaft of the screw, while the tensile forces absorb the screw head.
  • the high elasticity of the connecting screw results in an optimal adaptation of the mechanical properties to the connection.
  • the drawing shows two known groove profiles 1 and 2, which lie at the overlap point shown in section in one another and are held in this position by an upper link 3 and a lower link 4 made of band spring steel.
  • the upper link 3 is approximately M-shaped in cross-section and the lower link 4 is approximately V-shaped, so that the lateral ends of the tabs are opposite each other. The ends are slightly bent away from each other and provided with aligned holes through which screws 5 and 6 can be inserted.
  • the holes in the top bracket 3 are each square, and these square receiving holes each interact with a square 9, which is located under the head 7 and 8 of the screws 5 and 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Connection Of Plates (AREA)
  • Clamps And Clips (AREA)
  • Joining Of Building Structures In Genera (AREA)
EP87104541A 1986-04-09 1987-03-27 Attache de serrage Expired EP0240866B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863611892 DE3611892A1 (de) 1986-04-09 1986-04-09 Spannverbindung
DE3611892 1986-04-09

Publications (2)

Publication Number Publication Date
EP0240866A1 true EP0240866A1 (fr) 1987-10-14
EP0240866B1 EP0240866B1 (fr) 1989-04-26

Family

ID=6298288

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87104541A Expired EP0240866B1 (fr) 1986-04-09 1987-03-27 Attache de serrage

Country Status (2)

Country Link
EP (1) EP0240866B1 (fr)
DE (2) DE3611892A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103410535A (zh) * 2013-07-30 2013-11-27 冯世英 一种矿用卡缆的制造方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE819531C (de) * 1949-10-08 1951-10-31 Kuenstler & Co Schloss fuer den Grubenausbau
FR1169543A (fr) * 1954-12-10 1958-12-29 Bochumer Eisen Heintzmann Poutrelle annulaire ou cintrée pour galeries de mine
GB1212554A (en) * 1968-03-14 1970-11-18 Becorit Res Ltd Improvements relating to fishplates and mine roof support arches incorporating same
FR2393140A1 (fr) * 1977-06-02 1978-12-29 Hoesch Werke Ag Attache de serrage en plusieurs pieces
DE2800049A1 (de) * 1978-01-02 1979-07-12 Hoesch Werke Ag Spannverbindung fuer ineinanderliegende, verschiebliche rinnenprofile
DE3239343A1 (de) * 1982-10-23 1984-04-26 Techno ARBED Deutschland GmbH, 6600 Saarbrücken Spannverbindung fuer ineinanderliegende verschiebbare rinnenprofile fuer den grubenausbau

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE819531C (de) * 1949-10-08 1951-10-31 Kuenstler & Co Schloss fuer den Grubenausbau
FR1169543A (fr) * 1954-12-10 1958-12-29 Bochumer Eisen Heintzmann Poutrelle annulaire ou cintrée pour galeries de mine
GB1212554A (en) * 1968-03-14 1970-11-18 Becorit Res Ltd Improvements relating to fishplates and mine roof support arches incorporating same
FR2393140A1 (fr) * 1977-06-02 1978-12-29 Hoesch Werke Ag Attache de serrage en plusieurs pieces
DE2800049A1 (de) * 1978-01-02 1979-07-12 Hoesch Werke Ag Spannverbindung fuer ineinanderliegende, verschiebliche rinnenprofile
DE3239343A1 (de) * 1982-10-23 1984-04-26 Techno ARBED Deutschland GmbH, 6600 Saarbrücken Spannverbindung fuer ineinanderliegende verschiebbare rinnenprofile fuer den grubenausbau

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103410535A (zh) * 2013-07-30 2013-11-27 冯世英 一种矿用卡缆的制造方法

Also Published As

Publication number Publication date
DE3611892A1 (de) 1987-10-15
DE3760119D1 (en) 1989-06-01
EP0240866B1 (fr) 1989-04-26

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