EP0117900A2 - Chapeau articulé pour soutènement souterrain - Google Patents

Chapeau articulé pour soutènement souterrain Download PDF

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Publication number
EP0117900A2
EP0117900A2 EP83111053A EP83111053A EP0117900A2 EP 0117900 A2 EP0117900 A2 EP 0117900A2 EP 83111053 A EP83111053 A EP 83111053A EP 83111053 A EP83111053 A EP 83111053A EP 0117900 A2 EP0117900 A2 EP 0117900A2
Authority
EP
European Patent Office
Prior art keywords
hollow profile
profile
section
steel joint
fork
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.)
Ceased
Application number
EP83111053A
Other languages
German (de)
English (en)
Other versions
EP0117900A3 (fr
Inventor
Martha-Catharina Heiliger
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
Publication of EP0117900A2 publication Critical patent/EP0117900A2/fr
Publication of EP0117900A3 publication Critical patent/EP0117900A3/fr
Ceased 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
    • E21D17/00—Caps for supporting mine roofs

Definitions

  • Steel joint caps of the type described at the outset are generally known and widely used. Typical steel joint caps of this type are published, for example, in the prospectus of Rheinstahl, Rheinische Stahlwerke Bergbau- und Hebetechnik, 4600 Dortmund.
  • Steel joint caps of this type consist of a hollow profile, which in its cross section is composed of two U-shaped rolled profiles, which are welded together at their webs via a longitudinal seam. At the ends of this hollow profile, a so-called tip is welded on the one hand and a so-called fork on the other hand. The fork is used to hold a tip of another steel joint cap, while the tip is used to hold the fork in a previous steel joint cap.
  • the fork and tip can each be of different designs.
  • these steel joint caps are supplied with hollow profiles of different cross-sectional dimensions and of different length dimensions of the steel joint cap. These designs force the storage of steel joint caps of at least different lengths. In addition, there is an unpleasant appearance that if, for example, the tip or fork of the steel joint caps is damaged or the longitudinal weld seam of the hollow profile is torn or torn, the entire steel joint cap fails and must be replaced with a new one.
  • the invention is therefore based on the object of proposing a steel joint cap of the type described in the introduction, in which the total failure in the event of damage to individual areas can be avoided and which also opens up the possibility of satisfying different length requirements will.
  • this object is achieved in a steel joint cap of the type described in the introduction in that the connection of the tip and fork to the hollow profile is designed as a plug connection.
  • the steel joint cap disintegrates into at least three individual parts, each of which can be replaced independently of any other individual part.
  • the plug connection only has to be able to transmit the bending moment that occurs.
  • Tensile loads which could pull the tip or the fork out of the hollow profile, do not occur during use of the steel joint cap, so that - if at all - the individual plug-in connection only has to be secured against the tip or the fork falling out. This can be done, for example, in a simple manner by means of a transverse bore with a bolt.
  • Such a plug connection allows the storage of steel joint caps in the form of individual parts, namely the individual parts tip, fork and hollow profile. If, for example, a tip is damaged, the entire steel joint cap no longer has to be replaced, but only the tip replacement is sufficient. The same applies to the other individual parts.
  • the tip and fork have a profile insert at their hollow profile-side end which is designed in cross-sectional dimensions so that it can be inserted into the hollow cross section of the hollow profile with as little play as possible.
  • This is a particularly simple design option for a plug connection.
  • the profile insert itself is a hollow profile. This makes it possible to reduce the weight of the individual parts without destroying the function.
  • the hollow profile is designed as a box profile which is one-piece in cross section. In this way, the load capacity is improved compared to the conventional welded hollow profiles, or the weight is reduced with the same load capacity.
  • the hollow profile is composed as a two-part rolled profile and is longitudinally welded and additionally has a welded-in reinforcement web on both sides in the area of the plug connection.
  • This makes it possible to continue to use existing steel joint caps, which are damaged in the area of the tip or fork, with their hollow profile part. All that is required is to separate the tip or fork and replace it with a pluggable tip or fork.
  • a reinforcing web only has to be welded in on both sides of the welded hollow profile. In this way it is possible to supplement existing hollow profiles from old steel joint caps with simple means in such a way that they can continue to be used, and it is also possible to use the concept of the invention in hollow profiles produced conventionally by welding.
  • Another embodiment of the invention provides that the hollow profile is extended in the longitudinal direction by at least one section, which is joined to the hollow profile or to a further section via a plug connection.
  • the advantage of the extendable hollow profile can be exploited, and it becomes possible to produce steel joint caps of different lengths from the same components.
  • the advantages according to the invention are retained.
  • At least one section has a profile insert at one end, the cross-sectional dimensions of which are designed such that it can be inserted into the hollow cross section of another section or of a hollow profile with as little play as possible.
  • This is also a favorable design for a plug connection in the case of a section.
  • FIG. 1 shows a side view of a steel joint cap 1, the hollow profile 7 of which is formed in that two U-shaped rolled profiles are placed against one another with the legs and welded over a longitudinal seam.
  • a tip 5 At the ends of this hollow profile 7 there is a tip 5 and at the other end a fork 6 is provided, for example the fork 6 with a profile insert 9 being inserted into the hollow profile 7.
  • the tip 5 with its profile insert 8 (not shown in FIG. 1) is also inserted into the hollow profile 7.
  • the profile inserts 8 and 9 are shaped so that they the hollow cross section of the Hohlpro fils 7 can be used accordingly and with as little play as possible.
  • this has a welded-in reinforcement web 11 on both sides, so that a total of four such welded-in reinforcement webs 11 are provided for each hollow profile 7.
  • the longitudinal weld seam can be prevented from tearing open when the tip 5 or the fork 6 is subjected to appropriate stress.
  • FIG. 2 shows a steel joint cap that is very similar to that shown in FIG. 1.
  • the steel joint cap 1a according to Figure 2 has a hollow profile 2 of length 3, which is made as a one-piece box profile, in which the longitudinal weld seam is avoided.
  • the weld seam is a weak point with many disadvantages.
  • the one-piece box section 2 can have the same shape in cross section as the hollow section 7, but can also have any other suitable cross-sectional shape.
  • a tip 5 and on the other hand a fork 6 are inserted into the hollow profile 2 at the ends of the hollow profile in a steel joint cap 1a according to FIG. 2 by means of their profile inserts 8 and 9.
  • the structure of the steel joint caps described advantageously makes it possible to use sections 4 which can have the same cross section as the hollow profiles 2 and 7, respectively.
  • a section 4 can then have a profile insert 10 at one end, similar or identical to the profile inserts 8 or 9 of the tip 5 or the fork 6.
  • the section 4 can then, with its profile insert 10, for example instead of a fork 6, into one end of the Hollow profile 2 are inserted.
  • the length 3 of the hollow profile 2 is extended by the length of the section 4.
  • the fork 6 with its profile insert 9 can then in the manner already described be plugged in.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Stackable Containers (AREA)
  • Tents Or Canopies (AREA)
EP83111053A 1983-03-02 1983-11-05 Chapeau articulé pour soutènement souterrain Ceased EP0117900A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8305874U 1983-03-02
DE19838305874 DE8305874U1 (de) 1983-03-02 1983-03-02 Stahlgelenkkappe fuer untertageausbau

Publications (2)

Publication Number Publication Date
EP0117900A2 true EP0117900A2 (fr) 1984-09-12
EP0117900A3 EP0117900A3 (fr) 1986-10-08

Family

ID=6750585

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83111053A Ceased EP0117900A3 (fr) 1983-03-02 1983-11-05 Chapeau articulé pour soutènement souterrain

Country Status (2)

Country Link
EP (1) EP0117900A3 (fr)
DE (1) DE8305874U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0273122A1 (fr) * 1986-12-01 1988-07-06 Martha-Catharina Heiliger Rallonge métallique articulée pour soutènement minier

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE944845C (de) * 1949-10-02 1956-06-28 Wilhelm Reppel Verbindung fuer den Schlossteil und das Traegerprofil eines mit einem zweiten Ausbautraeger durch ein Schloss zu verbindenden Ausbautraegers
DE1066521B (fr) * 1959-10-08
DE1140890B (de) * 1960-06-11 1962-12-13 Karl Maria Groetschel Dipl Ing Vorpfaendkappe, insbesondere Vorpfaendwendekappe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1066521B (fr) * 1959-10-08
DE944845C (de) * 1949-10-02 1956-06-28 Wilhelm Reppel Verbindung fuer den Schlossteil und das Traegerprofil eines mit einem zweiten Ausbautraeger durch ein Schloss zu verbindenden Ausbautraegers
DE1140890B (de) * 1960-06-11 1962-12-13 Karl Maria Groetschel Dipl Ing Vorpfaendkappe, insbesondere Vorpfaendwendekappe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0273122A1 (fr) * 1986-12-01 1988-07-06 Martha-Catharina Heiliger Rallonge métallique articulée pour soutènement minier

Also Published As

Publication number Publication date
EP0117900A3 (fr) 1986-10-08
DE8305874U1 (de) 1983-10-20

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Effective date: 19890108