EP0336863A1 - Neuer Typ einer Leitertreppe - Google Patents

Neuer Typ einer Leitertreppe Download PDF

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Publication number
EP0336863A1
EP0336863A1 EP89420123A EP89420123A EP0336863A1 EP 0336863 A1 EP0336863 A1 EP 0336863A1 EP 89420123 A EP89420123 A EP 89420123A EP 89420123 A EP89420123 A EP 89420123A EP 0336863 A1 EP0336863 A1 EP 0336863A1
Authority
EP
European Patent Office
Prior art keywords
uprights
steps
ladder
edges
mortises
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Withdrawn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
EP89420123A
Other languages
English (en)
French (fr)
Inventor
Raoul Boucher
Gilbert Geay
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.)
Menuiseries Du Val De Rhins R Boucher "mvr"
Original Assignee
Menuiseries Du Val De Rhins R Boucher "mvr"
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 Menuiseries Du Val De Rhins R Boucher "mvr" filed Critical Menuiseries Du Val De Rhins R Boucher "mvr"
Publication of EP0336863A1 publication Critical patent/EP0336863A1/de
Withdrawn legal-status Critical Current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
    • E04F11/104—Treads
    • E04F11/108—Treads of wood or with an upper layer of wood

Definitions

  • the present invention relates to a new type of milling ladder, consisting of two parallel uprights (stringers) between which are mounted parallel transverse steps.
  • one or two guardrails can be provided on the sides of the uprights.
  • the invention relates to an improvement made to milling ladders making it possible to produce such straight staircases.
  • one of the main problems that arises is that of adjusting the steps in order to position them horizontally and this, as a function of the inclination of the ladder and of the height that must be reached.
  • the most commonly used solution to solve this problem consists in mounting steps in the uprights by their central part, so that they can pivot and then fix them definitively against said uprights. This solution is satisfactory but it does not however make it possible to obtain an adjustable spacing between each of the steps. Furthermore, there is the problem of the risk of rupture of the connecting elements and of the tilting of the step on the front or the rear during use.
  • the uprights used in the production of the ladder according to the invention is particularly suitable for allowing the installation of one (or two) guardrail (s) on the side of the or amount (s).
  • the invention therefore relates to an improvement made to milling ladders of the type comprising two inclined lateral uprights (stringers), between which horizontal flat steps are fixed, the positioning and holding of the steps being obtained by assembling the tenons / mortises type between the edges of the steps and the faces opposite the uprights.
  • the scale according to the invention is characterized in that: - the assembly elements (profile in the shape of tenons or mortises) which are provided on the stringers are at least two in number and extend parallel to the edges of said uprights and this, from the base to the top of the latter ; - the complementary parts (mortises or tenons) provided on the edges of the steps have an inclination corresponding to that of the ladder set up in order, on the one hand, to position the steps horizontally and on the other hand, to be able to slide said steps along the uprights during their establishment, which makes it possible to position them at any height and with an adjustable spacing; - The final connection between the uprights and the steps is carried out by means of conventional blocking elements connecting said uprights to said steps.
  • milling ladders in which, not only can the steps be spaced on demand, which makes it possible to obtain all the levels to be climbed, but moreover, taking into account the particular structure of connection by tenons and mortises in accordance with the invention, one obtains an autoblocking of the steps on the uprights, autoblocking which avoids any tilting of the step on the front or the rear.
  • the milling ladder according to the invention is of the type consisting of two lateral uprights (1a, 1b) (stringers) inclined relative to the ground at an angle which can be variable depending on the level to be reached but which, in general, is fixed at 45 ° and between which are arranged flat steps, designated by the general reference (2), horizontal, secured to said uprights (1a, 1b).
  • the assembly of the steps (2) with the uprights (1a, 1b), assembly which is carried out according to the so-called tenon and mortise technique, is obtained, in accordance with the invention, by producing the uprights (1a, 1b) so that they present on their internal face between which the step must be fixed, connecting elements in the form of continuous profiles (see Figures 2 and 3) comprising at least two tenons (3,4) ( Figure 2) or two mortises (5,6) ( Figure 3) parallel, continuous and extending from the base to the top of said uprights.
  • the steps (2) have, for their part, complementary parts in the form of tenons and mortises (7,8,9,10) (see Figures 4,5) which have an inclination corresponding to that of the ladder set in place, which allows, on the one hand to have the horizontal steps and, on the other hand, to be able to slide said steps along the uprights to position these steps (2) at any height.
  • Such a type of ladder in addition to its great simplicity of manufacture and the fact that it makes it possible to obtain an easy adjustment of the spacing between the two steps is also particularly suitable for associating a step against it as illustrated. in Figure 6.
  • an additional continuous groove (10) in which a continuous counter step (11) is fitted.
  • the ends of the steps (2) will in such a case beveled at (12) to press against this step (11).
  • FIG. 8 illustrates a variant of a milling ladder according to the invention in which the steps (1a, 1b) are not projecting and include parts in the form of tenons which also fit into two parts in the form of mortises provided on the uprights.
  • the final fixing elements of the steps to the uprights have not been shown.
  • Figures 9 and 10 illustrate how the ladder is fixed in the upper part on the upper slab as well as the realization of a horizontal railing.
  • This fixing can also be applied using a profile identical to those used to make the uprights of the ladder, this profile being fixed against the upper slab.
  • a covering can also be adapted against this slab.
  • FIGs 11 to 13 illustrate a variant of a ladder according to the invention comprising risers (20) arranged vertically.
  • the lateral sides (21) of the risers (20) also include parts in the form of tenons (22) and mortises (23) which are fitted inside the complementary parts provided on the lateral uprights (1a, 1b).
  • These risers (20) can slide along the uprights (1a, 1b) and can therefore automatically adapt to the height of the steps (see Figures 13 and 14).
  • a transverse cleat T can be provided at the front.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ladders (AREA)
EP89420123A 1988-04-06 1989-04-04 Neuer Typ einer Leitertreppe Withdrawn EP0336863A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8804788 1988-04-06
FR8804788A FR2629852B1 (fr) 1988-04-06 1988-04-06 Nouveau type d'echelle meuniere

Publications (1)

Publication Number Publication Date
EP0336863A1 true EP0336863A1 (de) 1989-10-11

Family

ID=9365197

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89420123A Withdrawn EP0336863A1 (de) 1988-04-06 1989-04-04 Neuer Typ einer Leitertreppe

Country Status (2)

Country Link
EP (1) EP0336863A1 (de)
FR (1) FR2629852B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2670707A1 (fr) * 1990-12-03 1992-06-26 Serge Aldeguer Escaliers bois cremaillere anglaise, poteaux, lisses, gardecorps a fabrication et pose simplifiee
ES2124115A1 (es) * 1994-02-23 1999-01-16 Marcel Antoine Beck Escalera adaptable a diferentes pendientes.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2049878A5 (de) * 1969-06-18 1971-03-26 Andernach Anton
FR2516136A1 (fr) * 1981-11-06 1983-05-13 Art Batiment Escalier droit
FR2521620A1 (fr) * 1982-02-12 1983-08-19 Cazorla Jean Escalier demontable
DE8619341U1 (de) * 1986-07-18 1986-09-11 Emde, Alfried, Ing.(grad.), 4300 Essen Freitragende Wangentreppe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2049878A5 (de) * 1969-06-18 1971-03-26 Andernach Anton
FR2516136A1 (fr) * 1981-11-06 1983-05-13 Art Batiment Escalier droit
FR2521620A1 (fr) * 1982-02-12 1983-08-19 Cazorla Jean Escalier demontable
DE8619341U1 (de) * 1986-07-18 1986-09-11 Emde, Alfried, Ing.(grad.), 4300 Essen Freitragende Wangentreppe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2670707A1 (fr) * 1990-12-03 1992-06-26 Serge Aldeguer Escaliers bois cremaillere anglaise, poteaux, lisses, gardecorps a fabrication et pose simplifiee
ES2124115A1 (es) * 1994-02-23 1999-01-16 Marcel Antoine Beck Escalera adaptable a diferentes pendientes.

Also Published As

Publication number Publication date
FR2629852A1 (fr) 1989-10-13
FR2629852B1 (fr) 1991-01-25

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