EP0086998B1 - Ossature en gradins - Google Patents

Ossature en gradins Download PDF

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Publication number
EP0086998B1
EP0086998B1 EP83100855A EP83100855A EP0086998B1 EP 0086998 B1 EP0086998 B1 EP 0086998B1 EP 83100855 A EP83100855 A EP 83100855A EP 83100855 A EP83100855 A EP 83100855A EP 0086998 B1 EP0086998 B1 EP 0086998B1
Authority
EP
European Patent Office
Prior art keywords
tubular portion
supporting
supporting structure
structure according
clamping bolt
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.)
Expired
Application number
EP83100855A
Other languages
German (de)
English (en)
Other versions
EP0086998A1 (fr
Inventor
Horst Gerlach
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.)
Gerlach Horst
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
Priority to AT83100855T priority Critical patent/ATE19535T1/de
Publication of EP0086998A1 publication Critical patent/EP0086998A1/fr
Application granted granted Critical
Publication of EP0086998B1 publication Critical patent/EP0086998B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E04F11/022—Stairways; Layouts thereof characterised by the supporting structure
    • E04F11/035—Stairways consisting of a plurality of assembled modular parts without further support

Definitions

  • the invention relates to a staircase-shaped support structure according to the features of the preamble of claim 1.
  • Such a staircase-shaped supporting structure composed of individual supporting elements has already become known from DE-U-66 10 332.
  • the upper end of a supporting bolt is rigidly welded to the front end of the supporting part of an upper supporting element for a step, the lower conical end of which is anchored in a corresponding conical bore in the rear tubular piece of the supporting part of a next lower supporting element.
  • the conical end of the support bolt and the corresponding conical bore in the rear pipe section must be carefully machined with a high dimensional tolerance so that the conical end of the support bolt finds a snug fit in the conical bore of the rear pipe section.
  • the conical anchoring between the lower end of the support bolt and the bore in the pipe section is secured by a locking screw, which engages with its thread in a central bore at the lower end of the support bolt and is supported with its head on a locking plate, the outer edge of which on the the lower edge of the pipe section.
  • the known construction is very complex in terms of production technology because of the necessary high dimensional tolerances and is therefore associated with relatively high costs in terms of production.
  • the locking screw has no anchoring function. It only has the task of preventing the fit from loosening due to vibrations in the stairs. The stability of the stairs is largely determined by the fit.
  • the object of the invention is to provide a stair-shaped support structure of the type mentioned, in which the high manufacturing costs of a precise fit between conical surfaces is avoided, but the advantage of such a fit for securely anchoring interlocking stair components is essentially retained.
  • a support element according to the invention is indicated as a whole by 1.
  • Several such interconnected support elements form a support structure according to the invention for straight and / or spiral staircases.
  • Each support element 1 serves to support a step, e.g. wooden.
  • the supporting structure according to the invention preferably forms a central cheek, which is composed of individual central cheek parts, a central cheek part corresponding to a supporting element.
  • a horizontally arranged support part 2 made of a square tube.
  • a vertically downwardly projecting pipe section 3 is welded.
  • a vertically upwardly projecting rear pipe section 4 is welded to the rear end of the square tube.
  • the rear pipe section 4 is significantly shorter than the front pipe section 3 and is only slightly longer than the support part 2 is high.
  • An end section 5 at the lower end of the front pipe section 3 is provided with an outer surface 6 which is tapered in the shape of a truncated cone.
  • a first perforated disc 7 is firmly welded.
  • a second perforated disc 8 is firmly welded into the front pipe section 3 near its lower end.
  • a conical sleeve 9 is supported on the first perforated disk 7, the cylindrical outer surface of which fits snugly against the cylindrical inner wall of the pipe section 4.
  • the inner surface 9 'of the tapered sleeve 9 is correspondingly frustoconical, the wall thickness of the tapered sleeve 9 decreasing towards the upper end of the rear pipe section 4.
  • the conical surface 9 'of the conical sleeve 9 on the one hand and the conical surface 6 on the front pipe section 3 have essentially the same slope, as shown in FIG. 2.
  • the truncated cone-shaped outer surface on the front pipe section 3 can thus be supported on the corresponding truncated cone-shaped inner surface of the conical sleeve 9.
  • the first perforated disk 7 has a central hole 10 through which the shaft 11 of a clamping bolt 12 engages with play.
  • the clamping bolt 12 has a bolt head 13 which is supported on the outside of the first perforated disc 7.
  • the free end of the shaft 11 is provided with a thread 14 which engages in the central threaded bore 15 which forms the hole of the second perforated disc 8 in the front pipe section 3.
  • the tapered sleeve 9 has an axial length such that in the tightly clamped state of the clamping bolt 12 it projects somewhat beyond the lower end of the front pipe section 3.
  • the conical sleeve 9 can be particularly advantageous to form the conical sleeve 9 from a synthetic material. In this way it is possible to compensate even larger tolerances in the manufacture of the frustoconical outer surface 6 on the pipe section 3. It is clear to the person skilled in the art to select such a plastic for the taper sleeve 9 which, when the clamping bolt 12 is tightened, pulls tightly into the conical annular gap between the two pipe pieces 3 and 4 and thereby a rigid connection between the pipe pieces 3 and 4 via one ensures essential axial length.
  • the conical sleeve 9 consists of a flexible plastic, it may be advantageous to provide it with a longitudinal slot, not shown.
  • the taper sleeve 9 can be dimensioned such that it has a slightly larger outer diameter than the inner diameter of the tube piece 4 before assembly in the rear pipe section 4.
  • the width of the longitudinal slot or longitudinal gap can then be selected such that the conical sleeve is itself can be inserted under prestress into the rear pipe section 4, the longitudinal slot being more or less compressed.
  • tapered sleeve 9 may also be advantageous to provide the tapered sleeve 9 with a plurality of axial slots, e.g. 3 or 5 slots to be provided, which start from the thinner sleeve end and end at a distance from the thicker sleeve end.
  • conical sleeves made of metal can also be suitable, especially if they consist of metals which are relatively soft compared to the steel used for the pipe pieces. Even in the case of metallic conical sleeves, it can be advantageous to provide one longitudinal slot or a plurality of non-continuous slots.
  • first perforated disk 7 which can be inserted into the rear pipe section 4 with relatively little play and which is only supported on the wider end face of the conical sleeve 9.
  • the tapered sleeve 9 is largely forced into the free annular gap between the two pipe sections 3 and 4 via the perforated disk 7, in order to thereby achieve a tight fit of the pipe section 3 in the pipe section 4, which are firmly wedged together.
  • the second perforated disk 8 near the lower end of the front pipe section 3 and preferably in the region of the frustoconical outer surface of the front pipe section 3.
  • the position of the first perforated disk 7 in the rear pipe section 4 is advantageously selected such that the outer surface of the bolt head 13 is approximately aligned with the end face at the lower end of the pipe section 4. It is then also possible to cover the open lower end of the pipe section 4 with a plastic sleeve 16 which partially engages in the pipe section 4 and is supported with a flat edge on the lower end face of the pipe section 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Claims (11)

1. Ossature en gradins pour un escalier droit et/ou tournant, constituée par un assemblage d'éléments métalliques porteurs (1) résistant à la flexion et aux déplacements; chaque élément porteur (1) comportant une partie porteuse (2) en tube carré, disposée horizontalement pour soutenir une marche de l'escalier; une pièce tubulaire avant (3) orientée vers le bas étant fixée par soudage à cette partie porteuse, dans la zone du bord antérieur de la marche, et une pièce tubulaire arrière (4) orientée vers le haut étant fixée de mème à la partie porteuse (2), dans la zone du bord postérieur de la marche; la pièce tubulaire avant (3) de chaque élément porteur (1) et la pièce tubulaire arrière (4) de l'élément porteur (1) immédiatement sous-jacent étant engagées télescopiquement l'une dans l'autre, pour assurer l'assemblage de ces deux éléments porteurs adjacents (1); un boulon de serrage (12) étant prévu en outre, pour se monter de manière coaxiale dans les deux pièces tubulaires (3,4) engagées l'une dans l'autre, afin de solidariser les deux éléments porteurs adjacents (1) ainsi associés, en prenant appui d'une part sur une première rondelle percée (7) montée dans la pièce tubulaire arrière (4), et en se vissant d'autre part dans un trou taraudé (15) prévu dans la pièce tubulaire avant (3); (3) étant entourée par la pièce tubulaire arrière (4); et l'extrémité inférieure (5) de la pièce tubulaire avant (3) étant constituée par un tronc de cône dont la surface externe (6) est en appui sur une surface tronconique interne (9') qui lui correspond; cette ossature étant caractérisée en ce que le trou taraudé (15) est ménagé dans une deuxième rondelle percée (8), fixée à l'intérieur de la pièce tubulaire avant (3); et en ce que la surface tronconique interne (9') fait partie d'une douille profilée (9), comportant une surface externe cylindrique ajustée dans la pièce tubulaire arrière (4), et dont la face frontale la plus large est en appui sur la première rondelle percée (7) montée dans la partie tubulaire arrière (4), au voisinage de son extril mité inférieure; le boulon de serrage (12) agissant en tension entre les deux rondelles percées (7,8).
2. Ossature selon la revendication 1, caractérisée en ce que la première rondelle percée (7) est montée à demeure dans la pièce tubulaire arrière (4).
3. Ossature selon l'une des revendications 1 ou 2, caractérisée en ce que la douille profilée (9) est en matière plastique.
4. Ossature selon l'une des revendications 1 à 3, caractérisée en ce que la douille profilée (9) comporte une fente longitudinale.
5. Ossature selon l'une des revendications 1 à 3, caractérisée en ce que la douille profilée (9) comporte plusieurs fentes axiales réparties régulièrement autour de cette douille, et qui partent de l'extrémité la plus mince de la douille pour s'arrêter à une certaine distance de l'extrémité épaisse de celle-ci.
6. Ossature selon l'une des revendications 1 à 5, caractérisée en ce que la tête (13) du boulon de serrage (12) est en appui sur la première rondelle percée (7), qui est montée dans la pièce tubulaire arrière (4); la face externe de la tête du boulon de serrage étant sensiblement au niveau de la face frontale de l'extrémité inférieure de cette pièce tubulaire (4).
7. Ossature selon l'une des revendications 1 à 6, caractérisée en ce que l'extrémité inférieure ouverte de la partie tubulaire arrière (4) est recouverte par un bouchon en matière plastique (16), qui est engagé en partie dans cette partie tubulaire.
8. Ossature selon l'une des revendications 1 à 7, caractérisée en ce qu'en position de montage du boulon de serrage (12) vissé à fond, l'interstice annulaire existant entre la surface externe tronconique (6) de l'extrémité inférieure de la partie tubulaire avant (3), et la surface cylindrique interne de la partie tubulaire arrière (4), associée à la dite surface externe, est rempli de manière sensiblement complète par la douille profilée (9).
9. Ossature selon la revendication 8, caractérisée en ce que la douille profilée (9) déborde legerement au-delà de l'extrémité inférieure de la partie tubulaire avant (5), en position de montage du boulon de serrage (12) vissé à fond.
10. Ossature selon l'une des revendications 1 à 9, caractérisée en ce que la tige (11) du boulon de serrage (12) passe avec un jeu dans le trou (10) de la première rondelle percée (7) montée dans la partie tubulaire arrière (4).
11. Ossature selon l'une des revendications 1 à 10, caractérisée en ce que la deuxième rondelle percée (8) est montée près de l'extrémité inférieure de la partie tubulaire avant (3), dans la région amincie de la surface externe de profil tronconique (6) de cette extrémité.
EP83100855A 1982-01-29 1983-01-29 Ossature en gradins Expired EP0086998B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83100855T ATE19535T1 (de) 1982-01-29 1983-01-29 Treppenfoermige tragkonstruktion.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823202933 DE3202933A1 (de) 1982-01-29 1982-01-29 Treppenfoermige tragkonstruktion
DE3202933 1982-01-29

Publications (2)

Publication Number Publication Date
EP0086998A1 EP0086998A1 (fr) 1983-08-31
EP0086998B1 true EP0086998B1 (fr) 1986-04-30

Family

ID=6154264

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83100855A Expired EP0086998B1 (fr) 1982-01-29 1983-01-29 Ossature en gradins

Country Status (3)

Country Link
EP (1) EP0086998B1 (fr)
AT (1) ATE19535T1 (fr)
DE (2) DE3202933A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6610332U (de) * 1968-09-30 1973-09-27 Xaver Mayer Wangenlose und im wesentlichen freitragende, aus einzelnen tragkonsolen zum aufnehmen der trittplatten zusammengesetzte treppe beliebiger windung.
DE1814270A1 (de) * 1968-12-12 1970-06-25 Heinrich Goetzen Treppe
AT335159B (de) * 1974-10-30 1977-02-25 Scheffauer Anton Freitragende treppe, die in beliebiger form und mit unterschiedlicher steigung und auftrittbreite aus vorgefertigten treppen teilen zusammensetzbar ist

Also Published As

Publication number Publication date
DE3363224D1 (en) 1986-06-05
ATE19535T1 (de) 1986-05-15
EP0086998A1 (fr) 1983-08-31
DE3202933A1 (de) 1983-08-11

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