EP0033045B1 - Prefabricated straight stairway - Google Patents

Prefabricated straight stairway Download PDF

Info

Publication number
EP0033045B1
EP0033045B1 EP80401852A EP80401852A EP0033045B1 EP 0033045 B1 EP0033045 B1 EP 0033045B1 EP 80401852 A EP80401852 A EP 80401852A EP 80401852 A EP80401852 A EP 80401852A EP 0033045 B1 EP0033045 B1 EP 0033045B1
Authority
EP
European Patent Office
Prior art keywords
hole
gusset
hand
holes
steps
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
EP80401852A
Other languages
German (de)
French (fr)
Other versions
EP0033045A1 (en
Inventor
Raymond Pace
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 EP0033045A1 publication Critical patent/EP0033045A1/en
Application granted granted Critical
Publication of EP0033045B1 publication Critical patent/EP0033045B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02Stairways; Layouts thereof
    • E04F11/022Stairways; Layouts thereof characterised by the supporting structure
    • E04F11/025Stairways having stringers
    • E04F11/0255Stairways having stringers having adjustable gradient

Definitions

  • the invention relates to a straight staircase with two stringers, according to the preamble of claim 1, capable of being prefabricated in the factory and consisting of standard elements whatever the height of the drop.
  • Stairs thus designed are therefore unsuitable for satisfying a total standardization such that the same staircase can be used for a gentle climb (for example inclination at 30 ° relative to the horizontal) or for a steep climb like a sucker's ladder (for example inclination at 60 ° to the horizontal).
  • the design of a prefabricated staircase implies that the constituent elements are able to take between them various relative positions controlled by the inclination of the stringers, and this, by reducing the machining work to a minimum.
  • the invention chooses a solution lying between the freedom of Carter (US-A 3,299,950) and the rigor of Bâcker (DE-A 2509464) while retaining maximum resistance to the stringers.
  • the staircase according to the characterizing part of claim 1 therefore intends to provide a satisfactory solution to the requirements which have just been recalled and of which certain data are contradictory to each other, by using only a minimum of round holes (three at most) drilled in a stringer for the assembly of a step and a handrail support.
  • the stringers (L) have two vertical sides (L1 and L3) parallel as constituting for example the large opposite sides of a tubular or semi-tubular section of rectangular or U or omega section. .
  • GM vertical gusset
  • GM1 round front hole
  • GM2 oblong eye
  • the upright (MT) is integral with a trapezoidal gusset (GF) pierced with two substantially superimposed holes (GF1) and (GF2) ( Figure 1) or (GF3) and (GF4) ( Figure 3).
  • the lower hole (GF2) is a slightly arched oblong eye whose center of curvature is the center of the hole (GF1).
  • GM2 The oblong hole (GM2), the corresponding round hole of the stringer and the oblong hole (GF2) are crossed by the same bolt (1b).
  • the vertical adjustment of the upright and the horizontality of the step is therefore made by pivoting the respective gussets around the fixed point formed by the upper bolt by moving the lower bolt in the oblong holes.
  • the vertical distance of the bolts (1a) and (1b) corresponds to the difference in level between the steps, so that the stringer (L) is only pierced with two round holes used for the passage of the bolts ( 1a) and (1b) each of them used for the horizontal fixing of a step and for the vertical fixing of the gusset (GF) of a support (MT) so that on this stringer the holes of these holes draw a line broken at right angles, which therefore does not weaken its resistance.
  • the lower hole (GF4) of the gusset is a round hole, while the upper hole (GF3) is oblong (lumen).
  • the upright (MT) is therefore articulated around the bolt (1b) crossing the light (GM2) of the step, the round holes of the two sides of the stringer (L) and this lower hole (GF4).
  • the leveling of the step and the vertical upright only require three bolts; one of these being common to assembly systems.
  • the stairs according to the invention find various applications such as emergency stairs subject to safety standards, because their design makes it possible to respect the dimensions imposed by these (passage width, depth and height of steps, etc.).

Description

L'invention se rapporte à un escalier droit à deux limons, selon le préambule de la revendication 1, susceptible d'être préfabriqué en usine et constitué d'éléments standards quelle que soit la hauteur de la dénivellation.The invention relates to a straight staircase with two stringers, according to the preamble of claim 1, capable of being prefabricated in the factory and consisting of standard elements whatever the height of the drop.

En général, les escaliers droits, même les escaliers de secours sont faits à la demande, une épure dessinée pour chaque cas, permettant d'effectuer le perçage des limons de manière à obtenir une fixation convenable des marches, préparées en usine selon un standard. On a néanmoins déjà proposé de munir celles-ci de moyens de réglage permettant de rattraper les erreurs de mise en place en particulier des limons, ces moyens de réglage, constitués par des œils oblongs, n'assurant qu'une amplitude de quelques degrés.In general, straight staircases, even emergency staircases, are made on request, a sketch drawn for each case, making it possible to drill the stringers so as to obtain a suitable fixing of the steps, prepared in the factory according to a standard. However, it has already been proposed to provide them with adjustment means making it possible to make up for errors in positioning, in particular stringers, these adjustment means, constituted by oblong eyes, ensuring only an amplitude of a few degrees.

Des escaliers ainsi conçus sont donc impropres à satisfaire une standardisation totale telle que le même escalier puisse être utilisé pour une montée douce (par exemple inclinaison à 30° par rapport à l'horizontale) ou pour une montée abrupte genre échelle de meunier (par exemple inclinaison à 60° par rapport à l'horizontale).Stairs thus designed are therefore unsuitable for satisfying a total standardization such that the same staircase can be used for a gentle climb (for example inclination at 30 ° relative to the horizontal) or for a steep climb like a sucker's ladder (for example inclination at 60 ° to the horizontal).

Il faut remarquer qu'à partir du moment où l'on désire utiliser le même gabarit de perçage des limons, quelle que soit l'inclinaison de ceux-ci, il n'est plus possible d'utiliser des supports de main-courante standard fixés d'une manière classique sur lesdits limons, car cette pratique conduirait à une construction inesthétique dans laquelle lesdits supports seraient presque toujours fortement inclinés.It should be noted that from the moment one wishes to use the same template for drilling the stringers, regardless of the inclination thereof, it is no longer possible to use standard handrail supports fixed in a conventional manner on said stringers, because this practice would lead to an unsightly construction in which said supports would almost always be strongly inclined.

Pour être polyvalente, la conception d'un escalier préfabriqué implique que les éléments constituants soient aptes à prendre entre eux des positions relatives diverses commandées par l'inclinaison des limons, et ce, en réduisant le travail d'usinage au minimum.To be versatile, the design of a prefabricated staircase implies that the constituent elements are able to take between them various relative positions controlled by the inclination of the stringers, and this, by reducing the machining work to a minimum.

Autrement dit, les éléments d'un escalier droit préfabriqué y compris ceux de la rampe, hors la variation de la longueur des longerons en fonction de la dénivellation à gravir, doit permettre de résoudre tous les problèmes quelle que soit l'inclinaison, par le seul moyen de leur montage réciproque.In other words, the elements of a prefabricated straight staircase, including those of the banister, apart from the variation in the length of the side members as a function of the elevation to climb, must make it possible to solve all the problems whatever the inclination, by the only means of their reciprocal assembly.

On a proposé de réaliser des escaliers droits à inclinaison variable, soit en perçant les limons d'un trou traversé par l'axe ou le boulon de pivotement permettant le réglage à l'horizontabi- lité de la marche considérée et soit d'une série de trous percés en arc de cercle (U.S.A. 3 299 590 Carter) soit d'une lumière arquée (DE-A 2 509 464 Bâcker).It has been proposed to make straight stairs with variable inclination, either by drilling the stringers of a hole crossed by the axis or the pivot bolt allowing the horizontal adjustment of the step considered and either a series holes drilled in an arc (USA 3 299 590 Carter) or an arched light (DE-A 2 509 464 Bâcker).

On remarque que ces deux solutions, outre le coût élevé de la main-d'œuvre, diminuent considérablement la résistance des limons. Or le propre d'un escalier préfabriqué est d'être léger au point que lesdits limons sont la plupart du temps réalisés en tôle pliée.We note that these two solutions, in addition to the high cost of labor, considerably reduce the resistance of the stringers. However, the characteristic of a prefabricated staircase is to be light to the point that said stringers are mostly made of folded sheet.

Il n'est donc pas question de multiplier les perçages comme dans l'U.S.-A 3 299 590 ou d'y pratiquer des trous oblongs comme dans le DE-A 2 509 464.It is therefore out of the question to multiply the holes as in US-A 3,299,590 or to make oblong holes there as in DE-A 2,509,464.

Le FR-A 2 309 685 Brigaud décrit des escaliers de bois qui ne sont que partiellement préfabriqués en atelier puisque les limons ne sont préper- cés que du trou de passage de l'axe de pivotement, les vis d'immobilisation étant placées à la demande lors du montage.FR-A 2 309 685 Brigaud describes wooden staircases which are only partially prefabricated in the workshop since the stringers are only pre-drilled from the hole for passage of the pivot axis, the immobilization screws being placed at the request during assembly.

Le problème se complique pour les escaliers pourvus d'une rampe portée par des montants, car ces derniers doivent être montés parfaitement verticaux sous peine d'un effet inesthétique. Cela suppose donc qu'un réglage soit aussi prévu pour ces montants.The problem is compounded for stairs with a ramp carried by uprights, because these must be mounted perfectly vertical under penalty of an unsightly effect. This therefore assumes that an adjustment is also provided for these amounts.

On trouve ce réglage dans le brevet US-A 3 299 950 Carter précité ; chaque montant s'articule sur un boulon inférieur et sa verticalité tente d'être assurée par un second boulon traversant un des trous d'une série en arc de cercle.This setting is found in the aforementioned US Pat. No. 3,299,950 Carter; each upright is articulated on a lower bolt and its verticality tries to be ensured by a second bolt crossing one of the holes of a series in an arc of a circle.

Outre le réglage non continu, il s'ensuit un nouvel affaiblissement des longerons.In addition to the non-continuous adjustment, there is a further weakening of the beams.

Enfin, le brevet US-A 3 299 950 Carter impose deux opérations de montage indépendantes, celle des marches et celle de la main-courante.Finally, US-A 3,299,950 Carter requires two independent mounting operations, that of the steps and that of the handrail.

A l'opposé de cette disposition, est celle utilisée par Bâcker (DE-A 2 509 464) selon laquelle les supports de main-courante sont perpendiculaires à une traverse fixée par les deux boulons de fixation de la marche correspondante. Si donc la marche est parfaitement horizontale, le support est parfaitement vertical et le montage ne nécessite que deux boulons d'où une économie importante de temps. Malheureusement l'horizontalité d'une marche est du domaine de la théorie pour des montages rapides, il s'ensuit qu'une erreur de l'ordre d'un millimètre dans la position du boulon de réglage de la marche se traduit par la non- verticalité très visible du support.In contrast to this arrangement, is that used by Bâcker (DE-A 2 509 464) according to which the handrail supports are perpendicular to a crosspiece fixed by the two fixing bolts of the corresponding step. So if the step is perfectly horizontal, the support is perfectly vertical and the assembly requires only two bolts where a significant saving of time. Unfortunately the horizontality of a step is in the domain of theory for rapid mounting, it follows that an error of the order of a millimeter in the position of the step adjustment bolt results in the non - very visible verticality of the support.

Il n'y a pas de problème pour les supports de main-courante de l'escalier Brigaud (FR-A 2309685) puisqu'ils sont posés à la demande sans préparation antérieure.There is no problem for the Brigaud staircase handrail supports (FR-A 2309685) since they are installed on demand without previous preparation.

L'invention choisit une solution se situant entre la liberté de Carter (US-A 3 299 950) et la rigueur de Bâcker (DE-A 2509464) tout en conservant aux limons une résistance maximale.The invention chooses a solution lying between the freedom of Carter (US-A 3,299,950) and the rigor of Bâcker (DE-A 2509464) while retaining maximum resistance to the stringers.

L'escalier selon la partie caractérisante de la revendication 1 entend donc apporter une solution satisfaisante aux impératifs qui viennent d'être rappelés et dont certaines données sont contradictoires entre elles, en n'utilisant qu'un minimum de trous ronds (trois au maximum) percés dans un limon pour l'assemblage d'une marche et d'un support de main-courante.The staircase according to the characterizing part of claim 1 therefore intends to provide a satisfactory solution to the requirements which have just been recalled and of which certain data are contradictory to each other, by using only a minimum of round holes (three at most) drilled in a stringer for the assembly of a step and a handrail support.

D'autres particularités et avantages apparaîtront à la lecture de la description et des revendications qui suivent, lesquelles sont faites en regard des dessins annexés sur lesquels :

  • la figure 1 est une vue de profil partiellement en coupe ;
  • la figure 2 est une vue en coupe montrant l'assemblage des marches et montants avec le limon ; tandis que
  • la figure 3 montre une variante de montage sur le limon, du gousset des supports de main-courante.
Other features and advantages will appear on reading the description and the claims which follow, which are made with reference to the appended drawings in which:
  • Figure 1 is a side view partially in section;
  • Figure 2 is a sectional view showing the assembly of steps and uprights with the stringer; while
  • Figure 3 shows a mounting variant on the stringer, the gusset of the handrail supports.

Comme on le voit sur ces figures, avantageusement les limons (L) comportent deux flancs verticaux (L1 et L3) parallèles comme constituant par exemple les grands côtés opposés d'un profilé tubulaire ou semi-tubulaire de section rectangulaire ou en U ou en oméga.As can be seen in these figures, advantageously the stringers (L) have two vertical sides (L1 and L3) parallel as constituting for example the large opposite sides of a tubular or semi-tubular section of rectangular or U or omega section. .

Sur la face intérieure (L1) du profilé sont fixées les extrémités des marches (MA). Ces extrémités sont, soit repliées pour former une partie verticale soit solidaires d'un gousset vertical (GM), lequel est percé de deux trous, un trou avant rond (GM1) et un oeil oblong (GM2) celui-ci étant orienté selon un arc de cercle ayant (GM1) pour centre.On the inner face (L1) of the profile are fixed the ends of the steps (MA). These ends are either folded to form a vertical part or integral with a vertical gusset (GM), which is pierced with two holes, a round front hole (GM1) and an oblong eye (GM2) the latter being oriented in a arc of a circle having (GM1) as its center.

Sur la face (L3) opposée du limon (L) (ou sur un flasque rapporté (F) formant cette face comme représenté à la figure 2) sont fixés une pluralité de supports (MT) dont l'extrémité supérieure est articulée par une chape (C) à la main-courante ou rampe (MC) par des axes tels que (A).On the opposite face (L3) of the stringer (L) (or on an attached flange (F) forming this face as shown in Figure 2) are fixed a plurality of supports (MT) whose upper end is articulated by a yoke (C) to the handrail or ramp (MC) by axes such as (A).

A sa partie inférieure, le montant (MT) est solidaire d'un gousset trapézoïdal (GF) percé de deux trous sensiblement superposés (GF1) et (GF2) (figure 1) ou (GF3) et (GF4) (figure 3).At its lower part, the upright (MT) is integral with a trapezoidal gusset (GF) pierced with two substantially superimposed holes (GF1) and (GF2) (Figure 1) or (GF3) and (GF4) (Figure 3).

Dans le cas du mode de réalisation représenté à la figure 1, le trou inférieur (GF2) est un oeil oblong légèrement arqué dont le centre de courbure est le centre du trou (GF1).In the case of the embodiment shown in FIG. 1, the lower hole (GF2) is a slightly arched oblong eye whose center of curvature is the center of the hole (GF1).

Les trous ronds du gousset (GM) de la marche, le trou rond correspondant du limon et le trou rond (GF1) du gousset du montant sont traversés par le même boulon (1a).The round holes in the gusset (GM) of the step, the corresponding round hole in the stringer and the round hole (GF1) in the upright gusset are crossed by the same bolt (1a).

Le trou oblong (GM2), le trou rond correspondant du limon et le trou oblong (GF2) sont traversés par le même boulon (1 b).The oblong hole (GM2), the corresponding round hole of the stringer and the oblong hole (GF2) are crossed by the same bolt (1b).

Le réglage de l'aplomb du montant et de l'horizontalité de la marche se fait donc par pivotement des goussets respectifs autour du point fixe constitué par le boulon supérieur en déplaçant le boulon inférieur dans les trous oblongs.The vertical adjustment of the upright and the horizontality of the step is therefore made by pivoting the respective gussets around the fixed point formed by the upper bolt by moving the lower bolt in the oblong holes.

Il faut noter néanmoins que l'écart vertical des boulons (1a) et (1b) correspond à la dénivellation entre les marches, si bien que le limon (L) n'est percé que seulement de deux trous ronds servant au passage des boulons (1a) et (1 b) chacun d'eux servant à la fixation horizontale d'une marche et à la fixation verticale du gousset (GF) d'un support (MT) si bien que sur ce limon les perçages de ces trous dessinent une ligne brisée à angles droits, qui n'affaiblit donc pas sa résistance.It should be noted, however, that the vertical distance of the bolts (1a) and (1b) corresponds to the difference in level between the steps, so that the stringer (L) is only pierced with two round holes used for the passage of the bolts ( 1a) and (1b) each of them used for the horizontal fixing of a step and for the vertical fixing of the gusset (GF) of a support (MT) so that on this stringer the holes of these holes draw a line broken at right angles, which therefore does not weaken its resistance.

Dans le cas du mode de réalisation de la figure 3, le trou inférieur (GF4) du gousset est un trou rond, tandis que le trou supérieur (GF3) est oblong (lumière).In the case of the embodiment of FIG. 3, the lower hole (GF4) of the gusset is a round hole, while the upper hole (GF3) is oblong (lumen).

Le montant (MT) est donc articulé autour du boulon (1b) traversant la lumière (GM2) de la marche, les trous ronds des deux flancs du limon (L) et ce trou inférieur (GF4).The upright (MT) is therefore articulated around the bolt (1b) crossing the light (GM2) of the step, the round holes of the two sides of the stringer (L) and this lower hole (GF4).

Dans les deux modes de réalisation, la mise de niveau de la marche et la mise à la verticale du montant ne nécessitent que trois boulons ; l'un de ceux-ci étant commun aux systèmes d'assemblage.In both embodiments, the leveling of the step and the vertical upright only require three bolts; one of these being common to assembly systems.

Si l'on compare néanmoins ces deux modes de réalisation, on constate que celui figurant à la figure 3 présente l'avantage de réglages plus faciles, en ce sens qu'ils sont succédants et non concomitants comme dans le cas de la figure 1.If we nevertheless compare these two embodiments, we see that the one shown in FIG. 3 has the advantage of easier adjustments, in the sense that they are successive and not concomitant as in the case of FIG. 1.

Les escaliers selon l'invention trouvent des applications diverses comme les escaliers de secours soumis à des normes de sécurité, car leur conception permet de respecter les dimensions imposées par celles-ci (largeur de passage, profondeur et hauteur de marches etc.).The stairs according to the invention find various applications such as emergency stairs subject to safety standards, because their design makes it possible to respect the dimensions imposed by these (passage width, depth and height of steps, etc.).

Malgré leur préfabrication totale, ils peuvent être utilisés dans des conditions très différentes d'inclinaison, depuis un angle avec l'horizontale de 30° jusqu'à 60°, donc pour des « échelles de meuniers ou escaliers de navire à empattement restreint.Despite their total prefabrication, they can be used in very different inclination conditions, from an angle with the horizontal from 30 ° to 60 °, therefore for "miller's ladders or ship's stairs with a limited wheelbase.

Ils peuvent se prêter également à des emplois décoratifs en raison de la sobriété de leur ligne. Pour une telle utilisation, il suffirait d'enjoliver le montant (MT) et son gousset (GF) par exemple en leur donnant des lignes plus sophistiquées.They can also lend themselves to decorative jobs because of the sobriety of their line. For such use, it would suffice to embellish the amount (MT) and its gusset (GF) for example by giving them more sophisticated lines.

Claims (3)

1. A straight staircase comprising, on the one hand, two inclined stringers (L) which each have a series of holes for the passage of the fixing bolts (1a, 1b), a plurality of steps (MA1, MA2, MA3...) whose ends, which are either folded up or each provided with a gusset, have a front hole (GM1) and a rear hole (GM2) through which the bolts (1a, 1b) are intended to pass, which bolts serve to fix the steps to the stringers and to adjust the horizontal position of the said steps, and, on the other hand, a hand rail or banister (MC) supported by a plurality of vertical supports (MT) (for example one per step) which have an upper hole (GF1, GF3) and a lower hole (GF2, GF4), characterised in that the bottom end of the vertical supports (MT) is provided with a gusset (GF), in that the gussets of the steps and of the vertical supports each have a round hole (GM1, GF1, GF4) and an oblong hole (GM2, GF2, GF3), in that each stringer has only a maximum of three round holes for assembling one step and one support, and in that at least one (1 b) of the bolts passing through these holes fixes both the step and the support.
2. A straight staircase according to claim 1, characterised in that the upper hole (GF1) of the gusset (GF) of the hand-rail support is a round hole, whereas its lower hole (GF2) is oblong and has the shape of an arc whose centre of curvature is that of the upper hole (GF1).
3. A staircase according to claim 1, characterised in that the lower hole (GF4) of the gusset (GF) of the hand-rail support is a round hole, whereas its upper hole (GF3) is oblong and has the shape of an arc whose centre of curvature is that of the lower hole (GF3).
EP80401852A 1980-01-23 1980-12-23 Prefabricated straight stairway Expired EP0033045B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8001404A FR2474085B1 (en) 1980-01-23 1980-01-23 PREFABRICATED RIGHT STAIRCASE
FR8001404 1980-01-23

Publications (2)

Publication Number Publication Date
EP0033045A1 EP0033045A1 (en) 1981-08-05
EP0033045B1 true EP0033045B1 (en) 1984-11-28

Family

ID=9237785

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80401852A Expired EP0033045B1 (en) 1980-01-23 1980-12-23 Prefabricated straight stairway

Country Status (4)

Country Link
EP (1) EP0033045B1 (en)
DE (1) DE3069728D1 (en)
DK (1) DK29281A (en)
FR (1) FR2474085B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11085191B2 (en) * 2018-10-08 2021-08-10 Fortress Iron, Lp Stair assembly with rise adjustable step support brackets

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8808580U1 (en) * 1988-07-05 1988-08-18 Losberger Gmbh & Co Kg, 7100 Heilbronn, De
FR2722525B1 (en) * 1994-07-18 1996-09-20 Lesage Gilles VARIABLE CONFIGURATION STAIRS
US6692234B2 (en) 1999-03-22 2004-02-17 Water Management Systems Pump system with vacuum source
US6405748B1 (en) 1999-03-22 2002-06-18 David Muhs Trailer and fuel tank assembly
JP6008821B2 (en) * 2013-11-06 2016-10-19 株式会社西宮産業 Prefab stairs
US9309675B2 (en) * 2014-09-01 2016-04-12 Kelly Kristian Kvols Stairway tread support device and system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3299590A (en) * 1964-06-01 1967-01-24 Carter Lavoy Prefabricated, adjustable stairway, ramp or bridge
DE2509464A1 (en) * 1975-03-05 1976-09-09 Baecker Josef Fa Universally adjustable demountable open tread industrial staircase - with steps rotatable about front axis and stringers swivelling for slope setting

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2309685A1 (en) * 1975-03-07 1976-11-26 Brigaud Bernard Wooden staircase with standard treads and supports - has angle of treads adjusted to suit slope of staircase
US3962838A (en) * 1975-03-14 1976-06-15 Joe Warren Cox Shelf-adjusting stair

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3299590A (en) * 1964-06-01 1967-01-24 Carter Lavoy Prefabricated, adjustable stairway, ramp or bridge
DE2509464A1 (en) * 1975-03-05 1976-09-09 Baecker Josef Fa Universally adjustable demountable open tread industrial staircase - with steps rotatable about front axis and stringers swivelling for slope setting

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11085191B2 (en) * 2018-10-08 2021-08-10 Fortress Iron, Lp Stair assembly with rise adjustable step support brackets

Also Published As

Publication number Publication date
DK29281A (en) 1981-07-24
DE3069728D1 (en) 1985-01-10
EP0033045A1 (en) 1981-08-05
FR2474085B1 (en) 1985-10-31
FR2474085A1 (en) 1981-07-24

Similar Documents

Publication Publication Date Title
EP0033045B1 (en) Prefabricated straight stairway
EP1736075A1 (en) Element and upright of a supporting device and supporting device
EP3199723A1 (en) Self supporting foldable railing
EP0774032B1 (en) Adjustable staircase
EP1783302A2 (en) Connection means of a scaffolding support outrigger, scaffolding support outrigger with such connection means
EP1052344B1 (en) Kit for mounting a straight stairway and mounting method using it
FR2921398A1 (en) Temporary staircase constructing module, has peripheral edges that are straight so that steps are susceptible to form boarding stage boarded with sill of lateral access zone arranged on vertical wall of building
EP0674741A1 (en) Adjustable scaffolding for sloping surfaces
EP1482104B1 (en) Adjustable modular safety system for scaffold
EP0651097B1 (en) Balustrade bars and balustrade rail assembly
FR2480334A1 (en) Prefabricated staircase assembled on site - has side plates fixing treads into lateral support recesses on side rails
FR3040408A1 (en) MODULAR WORK STRUCTURE FOR STAIR CAGE
EP0014694B1 (en) Self-supporting exterior metal stairway
BE1010524A5 (en) Stair adaptable a different slopes.
EP0379422B1 (en) Ladder obtained from combining two single ladders
EP0336863A1 (en) New type of open-riser stair
BE891040A (en) TURNING STAIRCASE AND ELEMENT THEREFOR
FR2637635A1 (en) Improved guardrail and device allowing it to be secured in the ground
FR2976614A1 (en) Construction element for making contact surface for leg of height access device e.g. staircase, has positioning units designed to position fastener in discrete angular position relative to fastener receiving unit
FR2797427A1 (en) Articulated gangway between quay and moored vessel has fixed rail on quay for sliding platform linked to swivelling platform on gangway end
EP3198088A1 (en) Reflector device suitable for being attached in the horizontal position at an opening in a building
EP0887484A1 (en) Facade, in particular a glazed one
BE886570A (en) VARIABLE STEP STAIRS.
EP0580456A1 (en) Scaffolding
FR2927649A1 (en) Ascent equipment i.e. ladder, for performing e.g. light maintaining work in corridor, has support plane articulated on ascent plane such that support plan occupies one of positions, where positions are locked and unlocked by body and lever

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE CH DE FR GB IT NL SE

17P Request for examination filed

Effective date: 19820128

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE CH DE FR GB IT LI NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19841128

Ref country code: NL

Effective date: 19841128

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 19841128

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19841231

REF Corresponds to:

Ref document number: 3069728

Country of ref document: DE

Date of ref document: 19850110

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
BERE Be: lapsed

Owner name: PACE RAYMOND

Effective date: 19841223

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19891227

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19891229

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19901231

Ref country code: CH

Effective date: 19901231

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19910104

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19910129

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19910830

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19911223

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19920901