EP0664371A1 - Foot-step - Google Patents

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Publication number
EP0664371A1
EP0664371A1 EP95400075A EP95400075A EP0664371A1 EP 0664371 A1 EP0664371 A1 EP 0664371A1 EP 95400075 A EP95400075 A EP 95400075A EP 95400075 A EP95400075 A EP 95400075A EP 0664371 A1 EP0664371 A1 EP 0664371A1
Authority
EP
European Patent Office
Prior art keywords
uprights
plane
articulation
stand
planes
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
EP95400075A
Other languages
German (de)
French (fr)
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EP0664371B1 (en
Inventor
Francis Manier
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.)
Tubesca SA France
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Tubesca SA France
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Filing date
Publication date
Application filed by Tubesca SA France filed Critical Tubesca SA France
Publication of EP0664371A1 publication Critical patent/EP0664371A1/en
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Publication of EP0664371B1 publication Critical patent/EP0664371B1/en
Anticipated expiration legal-status Critical
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/42—Ladder feet; Supports therefor
    • E06C7/423—Ladder stabilising struts
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/14—Ladders capable of standing by themselves
    • E06C1/16—Ladders capable of standing by themselves with hinged struts which rest on the ground
    • E06C1/20—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as poles
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
    • E06C1/39—Ladders having platforms; Ladders changeable into platforms
    • E06C1/393—Ladders having platforms foldable with the ladder
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/08—Special construction of longitudinal members, or rungs or other treads
    • E06C7/082—Connections between rungs or treads and longitudinal members
    • E06C7/087—Connections between rungs or treads and longitudinal members with a connecting piece installed around the rung

Definitions

  • the invention relates to a step and in particular a compact step which can be closed in the out-of-service position with a minimum overall volume.
  • Known running boards generally have a climbing plane and a crutch plane mounted hinged adjacent to each other so that when the plans are closed in the out-of-service position of the running board, there is a risk of pinching your fingers at the articulation of these plans. Furthermore, the plans are applied against each other at closure, so that the volume of space at the closing of the step is equivalent to the sum of the volumes of the climb plans and stand.
  • the invention aims to remedy these drawbacks by proposing a step of the type comprising a climbing plane articulated to a crutch plane, the climbing plane consisting of two uprights to which steps are fixed, and the crutch plane consisting of two uprights rigidly connected to each other in the same plane, characterized in that the connecting elements of the uprights of the stand plane do not interfere with the steps of the climbing plane at closure, said planes are articulated one to the other along an axis coincident with their geometric line of intersection and are shaped with a determined distance between uprights, such that, in the step-closing position, the climb plane is inscribed inside the crutch plane, the distance between the corresponding neighboring uprights of the planes also being equal to at least twenty five millimeters (25 mm) in the articulation zone.
  • the running board occupies only a bulk volume equal to a single plane, that of ascent, and that, on the other hand, it is avoided to catch their fingers at the level of the articulation of the planes which, in because of its height, is generally the entry area of the step, the distance between uprights at this level of at least twenty five millimeters (25 mm) can not reach the fingers of the operator.
  • the amounts of planes can be conformed in their plan along a variable line, for example slightly curved but it is advantageous that they are rectilinear.
  • the set includes a median transverse plane of symmetry.
  • the corresponding lateral uprights of the planes are advantageously articulated to each other by means of a one-piece articulation piece made from plastic molding, also comprising a spacer part of width equal to at least twenty five millimeters (25 mm).
  • This part is generally in the form of a collar capable of being fitted fitted around the uprights of the crutch planes at their upper end part and carries a tubular part on one of its faces, forming a spacer between said neighboring uprights and possibly a bearing of the axis of articulation.
  • This part can also be mounted at the upper end of the uprights of the climb plane to receive by the tubular part a so-called upper holding tube of the step.
  • the invention therefore also relates to the aforementioned part remarkable for its two functions on the running boards.
  • the step according to the invention comprises two planes hinged to each other, the climb plane 1 provided with steps 3 and the stand plane 5 which opens in the service position to maintain the ascent plane 1 in an inclined situation conducive to the ascent of the steps by people and which closes in fold down on the ascent plane in the out-of-service position.
  • the opening of the stand 5 is locked by means of the upper platform 7, which is articulated to the climbing plane 1, above the last upper step and is hooked horizontally on the stand 5 by a conventional hooking means on the latter, for example by a removable finger of the platform engaged in a lumen of one of the uprights of the plane (not shown).
  • the climb plane 1 comprises two straight tubular uprights 9 (contained in this same plane) and to which the steps 3 are fixed which contribute to rigidly connecting them to each other.
  • the stand 5 plane also comprises two rectilinear tubular uprights 11 (contained in this plane), of the same section as those of the climb plane and of shorter length. These uprights are rigidly connected by two plates 13 fixed on their rear face, substantially respectively at the bottom of the running board between the first and second steps 3 at the bottom and at the level of the upper platform 7.
  • the two uprights 9 of the climbing plane converge slightly towards each other with symmetry with respect to a median plane P of symmetry of the running board.
  • An upper horizontal retaining tube 15 connects them to their upper end.
  • the two uprights 11 of the stand plane also symmetrical to each other with respect to the median plane P converge upwards but at an angle less than the uprights of the climb plan. They are articulated along the axis of articulation crutch and climb plans, which is also their geometric line of intersection. They are each articulated to an amount of the climbing plane, outside of these but at a short distance, about 25 mm, from each of them at the joint, by means of a joint piece 17 mounted at their upper end.
  • the spacing of the amounts coupled to the lower level is less, which allows the folding of the climb plane inside the stand plane and according to a common plane combined containing the axis of articulation .
  • the running board thus comprises two lateral articulation pieces 17 of the 2 pairs of articulated uprights 9, 11 of the stand and climb plans.
  • These, identical to each other ( Figure 3) and mounted symmetrical to each other with respect to the plane P have the general shape of a collar of rectangular section, of dimensions equivalent to the clearance close to those of amounts. They are mounted fitted to the upper end of the latter. They have a striated external contour on the long sides of the rectangle with a rounded cutout 19 at the lower and upper level. This conformation provides, in addition to an aesthetic configuration, significant mechanical rigidity.
  • An axis drilling hole 21 is formed in each of the two opposite ridged faces 22 at the median level.
  • the diameter of these holes corresponds to the clearance close to that of the axis (simple rivet 23 or screw) which passes through it.
  • one of these faces has a circular internal recess 25, formed coaxially with the holes and the axis and capable of receiving the head 27 of the axis (of the rivet 23 or of the screw) and the other face.
  • an external tubular part 29 also arranged coaxially with the axis. The length of the tubular part or tube 29 is 25 mm and its diameter greater than that of the axis.
  • This tube plays the role of articulation spacer, length 25 mm, between each of the strut uprights and of the riser of the step, being crossed by the axis (rivet) mounted traversing in each of the uprights of the risers and crutch.
  • this spacer maintains a large spacing between the neighboring uprights coupled to the stand and riser planes, of approximately 25 mm. This spacing prevents finger trapping when closing in the out-of-service position of the step.
  • the tube rests on the external face of the upright of the climb plane.
  • the part 17 provided with its collar part and its tubular part is formed in a single piece, being produced by molding in hard plastic material, for example polypropylene.
  • the plastic material helps to lubricate the joint in contact with the amount of climbing plane.
  • the retaining tube is mounted through on the internal face of each upright of the climb plane by a hole 31 and is retained in translation by a stop inside the opposite external faces of the uprights.
  • the part thus covers the upper end of the uprights as well as an end portion of the retaining tube, thus concealing the drilling hole 31 of the upright.
  • the bore diameter of the tube 29 is equivalent to the clearance close to that of the tube 15, this to allow the latter to slide inside.
  • a protective tip 33 can also be fitted to the end of the upright, this tip being shaped for reasons of aesthetic appearance, rounded to the shape of the upper cutout of the part 17.
  • the assembly of this part is simple .
  • the articulation it is produced by fitting the part into the upper end of each upright of the stand plane, the tube part 29 being turned towards the upright of the ascent plane, and translating until its drilling holes 21 are in alignment with those of the uprights (pre-drilled).
  • the rivet 23 or the screw forming an axis is then threaded into the workpiece and simultaneously into the strut upright, then into the riser upright, then fixed by stamping at a determined application pressure or tightened by bolt to its end 35 on the internal face of the riser post.
  • an upper protective cap 33 is threaded at the upper end of the upright. This tip is shaped into a rounded shape when the part is cut.
  • the plastic material of the tube part forming a spacer contributes to lubricating the faces of the uprights in friction with this tube part.
  • a brake device for example a shoe 37 disposed at the lower part of the uprights of the stand plane and on their internal face can lock the closing of the running board, the stand amount coming to a stop by the brake 37 in alignment of the amount of the climb plan, the latter and the stand plan then being combined.
  • the connecting plates 13 of the strut uprights are arranged so as not to interfere during folding down with steps 3 and platform 7.
  • the articulation piece added with a protective tip fixed on the upright constitutes in a way a piece of tip at the end of the uprights which it equips, with the protective and aesthetic effect corresponding.

Abstract

The step ladder consists of a step section with two side members (9) connected by a series of steps (3), and a support section with two side members (11) connected by two cross-members (13), positioned so as not to interfere with the steps when closed. The two sections of the step ladder are hinged about their point of intersection, and their side members are spaced so that those of the support section fit outside those of the step section when the ladder is closed. The pivots between the two sections are formed by a cap (17) on the top of each support section side member, having a projecting bush on the inside which acts as a spacer for a step section side member. This forms a gap of at least 25 mm between the side members' upper ends.

Description

L'invention concerne un marchepied et en particulier un marchepied compact qui puisse être fermé en position hors service selon un volume d'encombrement minimal.The invention relates to a step and in particular a compact step which can be closed in the out-of-service position with a minimum overall volume.

Les marchepieds connus comportent généralement un plan de montée et un plan de béquille montés articulés adjacents l'un à l'autre de sorte qu'à la fermeture des plans en position hors service du marchepied, on risque de se coincer les doigts au niveau de l'articulation de ces plans. Par ailleurs, les plans viennent s'appliquer l'un contre l'autre à la fermeture, de sorte que le volume d'encombrement à la fermeture du marchepied équivaut à la somme des volumes des plans de montée et de béquille.Known running boards generally have a climbing plane and a crutch plane mounted hinged adjacent to each other so that when the plans are closed in the out-of-service position of the running board, there is a risk of pinching your fingers at the articulation of these plans. Furthermore, the plans are applied against each other at closure, so that the volume of space at the closing of the step is equivalent to the sum of the volumes of the climb plans and stand.

L'invention vise à remédier à ces inconvénients en proposant un marchepied du type comportant un plan de montée articulé à un plan de béquille, le plan de montée étant constitué de deux montants auxquels sont fixées des marches, et le plan de béquille constitué de deux montants reliés rigidement l'un à l'autre dans ce même plan, caractérisé en ce que les éléments de liaison des montants du plan de béquille n'interfèrent pas avec les marches du plan de montée à la fermeture, lesdits plans sont articulés l'un à l'autre selon un axe confondu avec leur ligne d'intersection géométrique et sont conformés avec une distance entre montants déterminée, de telle manière que, en position de fermeture de marchepied, le plan de montée s'inscrive à l'intérieur du plan de béquille, la distance entre les montants voisins correspondants des plans étant égale en outre à au moins vingt cinq millimètres (25 mm) dans la zone d'articulation.The invention aims to remedy these drawbacks by proposing a step of the type comprising a climbing plane articulated to a crutch plane, the climbing plane consisting of two uprights to which steps are fixed, and the crutch plane consisting of two uprights rigidly connected to each other in the same plane, characterized in that the connecting elements of the uprights of the stand plane do not interfere with the steps of the climbing plane at closure, said planes are articulated one to the other along an axis coincident with their geometric line of intersection and are shaped with a determined distance between uprights, such that, in the step-closing position, the climb plane is inscribed inside the crutch plane, the distance between the corresponding neighboring uprights of the planes also being equal to at least twenty five millimeters (25 mm) in the articulation zone.

Il résulte de cette disposition que, d'une part, à la position de fermeture, le marchepied n'occupe qu'un volume d'encombrement égal à un seul plan, celui de montée, et que, d'autre part, on évite de se coincer les doigts au niveau de l'articulation des plans qui, en raison de sa situation de hauteur, est généralement la zone de saisie du marchepied, la distance entre montants à ce niveau d'au moins vingt cinq millimètres (25 mm) ne pouvant atteindre les doigts de l'opérateur.It follows from this arrangement that, on the one hand, in the closed position, the running board occupies only a bulk volume equal to a single plane, that of ascent, and that, on the other hand, it is avoided to catch their fingers at the level of the articulation of the planes which, in because of its height, is generally the entry area of the step, the distance between uprights at this level of at least twenty five millimeters (25 mm) can not reach the fingers of the operator.

Les montants de plans peuvent être conformés dans leur plan selon une ligne variable, par exemple légèrement courbe mais il est avantageux qu'ils soient rectilignes.The amounts of planes can be conformed in their plan along a variable line, for example slightly curved but it is advantageous that they are rectilinear.

L'ensemble comporte un plan de symétrie transversal médian.The set includes a median transverse plane of symmetry.

Les montants latéraux correspondants des plans sont avantageusement articulés l'un à l'autre au moyen d'une pièce d'articulation monobloc et issue de moulage en matière plastique, comportant également une partie entretoise de largeur égale à au moins vingt cinq millimètres (25 mm). Cette pièce est à forme générale de collier apte à être montée emmanchée autour des montants des plans de béquille à leur partie d'extrémité haute et porte une partie tubulaire sur l'une de ses faces, formant entretoise entre lesdits montants voisins et éventuellement palier de l'axe d'articulation.The corresponding lateral uprights of the planes are advantageously articulated to each other by means of a one-piece articulation piece made from plastic molding, also comprising a spacer part of width equal to at least twenty five millimeters (25 mm). This part is generally in the form of a collar capable of being fitted fitted around the uprights of the crutch planes at their upper end part and carries a tubular part on one of its faces, forming a spacer between said neighboring uprights and possibly a bearing of the axis of articulation.

Cette pièce peut également être montée à l'extrémité supérieure des montants du plan de montée pour recevoir par la partie tubulaire un tube dit de maintien supérieur du marchepied.This part can also be mounted at the upper end of the uprights of the climb plane to receive by the tubular part a so-called upper holding tube of the step.

L'invention concerne par conséquent également la pièce précitée remarquable par ses deux fonctions sur les marchepieds.The invention therefore also relates to the aforementioned part remarkable for its two functions on the running boards.

L'invention est illustrée ci-après à l'aide d'un exemple de réalisation et en référence aux dessins annexés, sur lesquels :

  • La figure 1 est une vue en coupe transversale médiane selon le plan commun de béquille et de montée du marchepied selon l'invention en position fermée ;
  • La figure 2 est une vue en élévation du marchepied en position d'ouverture ;
  • La figure 3 est une vue en perspective de la pièce d'articulation des montants des plans de béquille et de montée du marchepied selon l'invention ; et
  • La figure 4 est une vue en coupe schématique de la pièce d'articulation recevant le tube de maintien;
The invention is illustrated below using an embodiment and with reference to the accompanying drawings, in which:
  • Figure 1 is a median cross-sectional view along the common plane of stand and rise of the step according to the invention in the closed position;
  • Figure 2 is an elevational view of the step in the open position;
  • Figure 3 is a perspective view of the part of articulation of the uprights of the crutch plans and of the rise of the step according to the invention; and
  • Figure 4 is a schematic sectional view of the hinge part receiving the holding tube;

Comme représenté sur les figures 1 et 2, le marchepied selon l'invention comprend deux plans articulés l'un à l'autre, le plan de montée 1 pourvu des marches 3 et le plan de béquille 5 qui s'ouvre en position de service pour maintenir le plan de montée 1 en situation inclinée propice à la montée des marches par les personnes et qui se referme en rabattement sur le plan de montée en position hors service. Le verrouillage de l'ouverture du plan de béquille 5 est assuré par l'intermédiaire de la plate-forme supérieure 7, laquelle est articulée au plan de montée 1, au dessus de la dernière marche supérieure et est crochetée à l'horizontale sur le plan de béquille 5 par un moyen de crochetage classique sur ce dernier, par exemple par un doigt amovible de la plate-forme engagé dans une lumière d'un des montants du plan (non représenté). Le plan de montée 1 comprend deux montants tubulaires rectilignes 9 (contenus dans ce même plan) et auxquels sont fixées les marches 3 qui contribuent à les relier rigidement l'un à l'autre. Le plan de béquille 5 comporte également deux montants tubulaires rectilignes 11 (contenus dans ce plan), de même section que ceux du plan de montée et de longueur inférieure. Ces montants sont reliés rigidement par deux plats 13 fixés sur leur face arrière, sensiblement respectivement au bas du marchepied entre les première et seconde marches 3 du bas et au niveau de la plate- forme supérieure 7. Les deux montants 9 du plan de montée convergent légèrement l'un vers l'autre avec symétrie par rapport à un plan médian P de symétrie du marchepied. Un tube de maintien horizontal supérieur 15 les relie à leur extrémité supérieure. Les deux montants 11 du plan de béquille, également symétriques l'un de l'autre par rapport au plan médian P convergent vers le haut mais selon un angle moindre que les montants du plan de montée. Ils sont articulés selon l'axe d'articulation

Figure imgb0001
des plans de béquille et de montée, qui est également leur ligne d'intersection géométrique. Ils sont articulés chacun à un montant du plan de montée, à l'extérieur de ceux-ci mais à faible distance, environ 25 mm, de chacun d'eux au niveau de l'articulation, au moyen d'une pièce d'articulation 17 montée à leur extrémité supérieure.As shown in Figures 1 and 2, the step according to the invention comprises two planes hinged to each other, the climb plane 1 provided with steps 3 and the stand plane 5 which opens in the service position to maintain the ascent plane 1 in an inclined situation conducive to the ascent of the steps by people and which closes in fold down on the ascent plane in the out-of-service position. The opening of the stand 5 is locked by means of the upper platform 7, which is articulated to the climbing plane 1, above the last upper step and is hooked horizontally on the stand 5 by a conventional hooking means on the latter, for example by a removable finger of the platform engaged in a lumen of one of the uprights of the plane (not shown). The climb plane 1 comprises two straight tubular uprights 9 (contained in this same plane) and to which the steps 3 are fixed which contribute to rigidly connecting them to each other. The stand 5 plane also comprises two rectilinear tubular uprights 11 (contained in this plane), of the same section as those of the climb plane and of shorter length. These uprights are rigidly connected by two plates 13 fixed on their rear face, substantially respectively at the bottom of the running board between the first and second steps 3 at the bottom and at the level of the upper platform 7. The two uprights 9 of the climbing plane converge slightly towards each other with symmetry with respect to a median plane P of symmetry of the running board. An upper horizontal retaining tube 15 connects them to their upper end. The two uprights 11 of the stand plane, also symmetrical to each other with respect to the median plane P converge upwards but at an angle less than the uprights of the climb plan. They are articulated along the axis of articulation
Figure imgb0001
crutch and climb plans, which is also their geometric line of intersection. They are each articulated to an amount of the climbing plane, outside of these but at a short distance, about 25 mm, from each of them at the joint, by means of a joint piece 17 mounted at their upper end.

L'écartement des montants accouplés au niveau inférieur est moindre, ce qui autorise le rabattement du plan de montée à l'intérieur du plan de béquille et selon un plan commun confondu contenant l'axe d'articulation

Figure imgb0002
.The spacing of the amounts coupled to the lower level is less, which allows the folding of the climb plane inside the stand plane and according to a common plane combined containing the axis of articulation
Figure imgb0002
.

Le marchepied comporte ainsi deux pièces d'articulation latérales 17 des 2 paires de montants articulés 9,11 des plans de béquille et de montée. Celles-ci, identiques l'une à l'autre (figure 3) et montées symétriques l'une de l'autre par rapport au plan P ont la forme générale de collier de section rectangulaire, de dimensions équivalentes au jeu près à celles des montants. Elles sont montées emmanchées à l'extrémité supérieure de ces derniers. Elles ont un contour externe strié sur les grands côtés du rectangle avec une découpe arrondie 19 au niveau inférieur et supérieur. Cette conformation apporte outre une configuration esthétique, une rigidité mécanique importante. Un trou de perçage 21 d'axe est formé dans chacune des deux faces striées opposées 22 au niveau médian. Le diamètre de ces trous correspond au jeu près à celui de l'axe (simple rivet 23 ou vis) qui le traverse. En outre, l'une de ces faces comporte un renfoncement interne circulaire 25, formé coaxialement aux trous et à l'axe et apte à recevoir la tête 27 de l'axe (du rivet 23 ou de la vis) et l'autre face une partie tubulaire 29 externe disposée également coaxialement à l'axe. La longueur de la partie tubulaire ou tube 29 est de 25 mm et son diamètre supérieur à celui de l'axe. Ce tube joue le rôle d'entretoise d'articulation, de longueur 25 mm, entre chacun des montants de béquille et de plan de montée du marchepied, étant traversé par l'axe (rivet) monté traversant dans chacun des montants des plans de montée et de béquille. Comme précité, cette entretoise maintient un écartement important entre les montants voisins accouplés des plans de béquille et de montée, d'environ 25 mm. Cet écartement évite tout coincement des doigts à la fermeture en position hors-service du marchepied. Le tube s'appuie sur la face externe du montant du plan de montée.The running board thus comprises two lateral articulation pieces 17 of the 2 pairs of articulated uprights 9, 11 of the stand and climb plans. These, identical to each other (Figure 3) and mounted symmetrical to each other with respect to the plane P have the general shape of a collar of rectangular section, of dimensions equivalent to the clearance close to those of amounts. They are mounted fitted to the upper end of the latter. They have a striated external contour on the long sides of the rectangle with a rounded cutout 19 at the lower and upper level. This conformation provides, in addition to an aesthetic configuration, significant mechanical rigidity. An axis drilling hole 21 is formed in each of the two opposite ridged faces 22 at the median level. The diameter of these holes corresponds to the clearance close to that of the axis (simple rivet 23 or screw) which passes through it. In addition, one of these faces has a circular internal recess 25, formed coaxially with the holes and the axis and capable of receiving the head 27 of the axis (of the rivet 23 or of the screw) and the other face. an external tubular part 29 also arranged coaxially with the axis. The length of the tubular part or tube 29 is 25 mm and its diameter greater than that of the axis. This tube plays the role of articulation spacer, length 25 mm, between each of the strut uprights and of the riser of the step, being crossed by the axis (rivet) mounted traversing in each of the uprights of the risers and crutch. As mentioned above, this spacer maintains a large spacing between the neighboring uprights coupled to the stand and riser planes, of approximately 25 mm. This spacing prevents finger trapping when closing in the out-of-service position of the step. The tube rests on the external face of the upright of the climb plane.

La pièce 17 munie de sa partie de collier et de sa partie tubulaire est formée de façon monobloc, étant issue de moulage en matière plastique dure, par exemple en polypropylène. La matière plastique contribue à lubrifier l'articulation au contact du montant de plan de montée.The part 17 provided with its collar part and its tubular part is formed in a single piece, being produced by molding in hard plastic material, for example polypropylene. The plastic material helps to lubricate the joint in contact with the amount of climbing plane.

Ces mêmes pièces 17, toutes identiques, sont utilisées au niveau supérieur du marchepied pour fixer le tube de maintien 15, comme représenté à la figure 4. Le tube de maintien est monté traversant sur la face interne de chaque montant du plan de montée par un trou 31 et est retenu en translation par butée à l'intérieur des faces externes opposées des montants. La pièce vient ainsi coiffer l'extrémité supérieure des montants de même qu'une partie d'extrémité du tube de maintien, dissimulant ainsi le trou de perçage 31 du montant. Le diamètre d'alésage du tube 29 est équivalent au jeu près à celui du tube 15, ceci pour permettre le coulissement de ce dernier à l'intérieur. Un embout de protection 33 peut en outre être emmanché à l'extrémité du montant, cet embout étant conformé pour des raisons d'aspect esthétique, en arrondi à la forme de la découpe supérieure de la pièce 17. Le montage de cette pièce est simple. Etant emmanchée à l'extrémité supérieure du montant avec son tube 29 situé coaxialement au trou de perçage 31 du montant, il suffit d'enfiler le tube de maintien dans ledit tube de la pièce et dans le trou de perçage du montant. Cette opération est effectuée sur chacun des montants du plan de montée. L'embout de protection est engagé ensuite dans l'extrémité creuse du montant. Enfin, un capuchon formant bouchon est engagé en clipsage dans le renfoncement 25 afin de le dissimuler.These same parts 17, all identical, are used at the upper level of the step to fix the retaining tube 15, as shown in FIG. 4. The retaining tube is mounted through on the internal face of each upright of the climb plane by a hole 31 and is retained in translation by a stop inside the opposite external faces of the uprights. The part thus covers the upper end of the uprights as well as an end portion of the retaining tube, thus concealing the drilling hole 31 of the upright. The bore diameter of the tube 29 is equivalent to the clearance close to that of the tube 15, this to allow the latter to slide inside. A protective tip 33 can also be fitted to the end of the upright, this tip being shaped for reasons of aesthetic appearance, rounded to the shape of the upper cutout of the part 17. The assembly of this part is simple . Being fitted at the upper end of the upright with its tube 29 located coaxially with the hole of drilling of the upright, it suffices to thread the retaining tube into said tube of the part and into the drilling hole of the upright. This operation is performed on each of the amounts of the climb plan. The protective cap is then engaged in the hollow end of the upright. Finally, a cap forming a plug is engaged in clipping into the recess 25 in order to conceal it.

Quant à l'articulation, elle est réalisée par emmanchement de la pièce dans l'extrémité supérieure de chaque montant du plan de béquille, la partie de tube 29 étant tournée vers le montant du plan de montée, et translation jusqu'à ce que ses trous de perçage 21 soient dans l'alignement de ceux des montants (pré-percés). Le rivet 23 ou la vis formant axe est ensuite enfilé(e) dans la pièce et simultanément dans le montant de béquille, puis dans le montant de plan de montée, puis fixée par embouti à pression déterminée d'application ou serrée par boulon à son extrémité 35 sur la face interne du montant de plan de montée. De même que pour la réception du tube de maintien, un embout de protection supérieur 33 est enfilé à l'extrémité supérieure du montant. Cet embout est conformé en arrondi à la découpe de la pièce.As for the articulation, it is produced by fitting the part into the upper end of each upright of the stand plane, the tube part 29 being turned towards the upright of the ascent plane, and translating until its drilling holes 21 are in alignment with those of the uprights (pre-drilled). The rivet 23 or the screw forming an axis is then threaded into the workpiece and simultaneously into the strut upright, then into the riser upright, then fixed by stamping at a determined application pressure or tightened by bolt to its end 35 on the internal face of the riser post. As for the reception of the retaining tube, an upper protective cap 33 is threaded at the upper end of the upright. This tip is shaped into a rounded shape when the part is cut.

Par ailleurs, on notera que la matière plastique de la partie de tube formant entretoise contribue à lubrifier les faces des montants en frottement avec cette partie de tube.Furthermore, it will be noted that the plastic material of the tube part forming a spacer contributes to lubricating the faces of the uprights in friction with this tube part.

On notera également qu'un dispositif de frein, par exemple un patin 37 disposé à la partie inférieure des montants du plan de béquille et sur leur face interne peut verrouiller la fermeture du marchepied, le montant de béquille venant en arrêt par le frein 37 en alignement du montant du plan de montée, ce dernier et le plan de béquille étant alors confondus. Naturellement, les plats de liaison 13 des montants de béquille sont disposés de façon à ne pas interférer lors du rabattement avec les marches 3 et la plate-forme 7.It will also be noted that a brake device, for example a shoe 37 disposed at the lower part of the uprights of the stand plane and on their internal face can lock the closing of the running board, the stand amount coming to a stop by the brake 37 in alignment of the amount of the climb plan, the latter and the stand plan then being combined. Naturally, the connecting plates 13 of the strut uprights are arranged so as not to interfere during folding down with steps 3 and platform 7.

Enfin, il est à souligner que la pièce d'articulation ajoutée d'un embout de protection fixé sur le montant constitue en quelque sorte une pièce d'embout à l'extrémité des montants qu'elle équipe, avec l'effet protecteur et esthétique correspondant.Finally, it should be noted that the articulation piece added with a protective tip fixed on the upright constitutes in a way a piece of tip at the end of the uprights which it equips, with the protective and aesthetic effect corresponding.

Claims (9)

Marchepied du type comportant un plan de montée (1) articulé à un plan de béquille (5), le plan de montée (1) étant constitué de deux montants (9) auxquels sont fixés des marches (3), et le plan de béquille (5) constitué de deux montants (11) reliés rigidement l'un à l'autre dans ce même plan, les éléments de liaison (13) des montants du plan de béquille n'interfèrant pas avec les marches (3) du plan de montée à la fermeture, lesdits plans étant articulés l'un à l'autre selon un axe
Figure imgb0003
confondu avec leur ligne d'intersection géométrique et étant conformés avec une distance entre montants déterminée, de telle manière que, en position de fermeture du marchepied, le plan de montée (1) s'inscrive à l'intérieur du plan de béquille (5), caractérisé en ce que les plans de montée (1) et de béquille (5) sont articulés au moyen d'éléments d'articulation (17) prévus sur chaque paire de montants latéraux voisins (9, 11) des plans, disposés chacun au niveau de la partie d'extrémité supérieure des montants (11) du plan de béquille et en ce que les éléments d'articulation (17) consistent chacun en une pièce monobloc à forme générale de collier, de dimensions en section équivalentes au jeu près à celles de la section des montants (9, 11) pour être emmanchée dans ceux-ci à leur extrémité, portant sur l'une de ses faces (22) une partie tubulaire (29) formant entretoise ou palier d'articulation entre les montants voisins accouplés (9, 11), de longueur égale à au moins vingt cinq millimètres (25 mm), et pourvue de deux trous de perçage (21) coaxiaux avec la partie tubulaire (29) formés sur deux faces opposées (22), ces trous recevant l'axe d'articulation (23) des montants.Step of the type comprising a climbing plane (1) articulated to a crutch plane (5), the climbing plane (1) consisting of two uprights (9) to which steps (3) are fixed, and the crutch plane (5) consisting of two uprights (11) rigidly connected to each other in this same plane, the connecting elements (13) of the uprights of the stand plane not interfering with the steps (3) of the plane of mounted at closure, said planes being articulated to each other along an axis
Figure imgb0003
coinciding with their geometric intersection line and being shaped with a determined distance between uprights, in such a way that, in the closed position of the running board, the climb plane (1) fits inside the stand plane (5 ), characterized in that the ascent (1) and stand (5) planes are articulated by means of articulation elements (17) provided on each pair of adjacent lateral uprights (9, 11) of the planes, each arranged at the level of the upper end part of the uprights (11) of the stand plane and in that the articulation elements (17) each consist of a single piece with a general shape of collar, of cross-sectional dimensions equivalent to the clearance to those of the section of the uprights (9, 11) to be fitted therein at their end, carrying on one of its faces (22) a tubular part (29) forming a spacer or hinge bearing between the uprights mating neighbors (9, 11), of lon equal to at least twenty five millimeters (25 mm), and provided with two drilling holes (21) coaxial with the tubular part (29) formed on two opposite faces (22), these holes receiving the axis of articulation ( 23) amounts. Marchepied selon la revendication 1, caractérisé en ce qu'il comporte un plan de symétrie transversal médian P.Step according to claim 1, characterized in that it comprises a median transverse plane of symmetry P. Marchepied selon l'une des revendications précédentes, caractérisé en ce que les montants (9, 11) des plans de béquille et de montée sont des profilés rectilignes tubulaires de même section, les montants (9) du plan de montée étant de longueur plus importante, reliés l'un à l'autre par un tube de maintien supérieur (15) des personnes.Step according to one of the claims above, characterized in that the uprights (9, 11) of the stand and mounting planes are straight tubular profiles of the same section, the uprights (9) of the climbing plan being of greater length, connected one to the 'other by an upper retaining tube (15) of people. Marchepied selon l'une des revendications précédentes, caractérisé en ce que les montants (9) du plan de montée convergent l'un vers l'autre en hauteur.Step according to one of the preceding claims, characterized in that the uprights (9) of the climbing plane converge towards each other in height. Marchepied selon l'une des revendications précédentes, caractérisé en ce que l'axe d'articulation (23) est un rivet ou une vis enfilé(e) dans les trous de perçage (21) de l'élément d'articulation (17) et dans la partie tubulaire (29) et monté(e) traversant(e) dans les montants (9, 11) prépercés à cet effet, ledit rivet ou ladite vis étant appliqué(e) par sa tête (27) dans un renfoncement (25) d'une face de la pièce d'articulation (17) et serré(e) par embouti ou par un boulon à son extrémité (35), respectivement, verrouillant ainsi l'élément d'articulation (17) en position à l'extrémité du montant du plan de montée.Step according to one of the preceding claims, characterized in that the articulation axis (23) is a rivet or a screw threaded in the drilling holes (21) of the articulation element (17) and in the tubular part (29) and mounted through (e) in the uprights (9, 11) pre-drilled for this purpose, said rivet or said screw being applied (e) by its head (27) in a recess ( 25) on one side of the articulation piece (17) and tightened by stamping or by a bolt at its end (35), respectively, thus locking the articulation element (17) in position at the end of the amount of the climb plan. Marchepied selon l'une des revendications précédentes, caractérisé en ce que ladite partie tubulaire (29) de l'élément d'articulation (17) est cylindrique de diamètre légèrement supérieur (au jeu près) à celui du tube de maintien (15) du marchepied, de sorte que ledit élément d'articulation peut être monté emmanché à l'extrémité supérieure des montants (9) du plan de montée pour recevoir par leur partie tubulaire (29) le tube de maintien (15) monté traversant dans la face interne de ces montants.Step according to one of the preceding claims, characterized in that the said tubular part (29) of the articulation element (17) is cylindrical with a diameter slightly greater (apart from play) than that of the retaining tube (15) of the running board, so that said articulation element can be mounted fitted at the upper end of the uprights (9) of the climbing plane to receive, by their tubular part (29), the retaining tube (15) mounted passing through in the internal face of these amounts. Marchepied selon l'une des revendications précédentes, caractérisé en ce que ledit élément d'articulation (17) est issu de moulage en matière plastique et comporte une découpe supérieure (19) conformée pour recevoir une pièce d'embout de protection (33) engagée dans l'extrémité creuse du montant.Step according to one of the preceding claims, characterized in that the said articulation element (17) is made from plastic molding and has an upper cutout (19) shaped to receive a piece of protective end piece (33) engaged in the hollow end of the upright. Marchepied selon l'une des revendications précédentes, caractérisé en ce qu'il comporte un dispositif de frein à son extrémité inférieure verrouillant la fermeture du plan de béquille (5) sur le plan de montée (1), par exemple un patin de friction (37) disposé sur la face interne des montants (11) du plan de béquille et qui permet l'arrêt du montant en alignement du montant (9) du plan de montée.Step according to one of the preceding claims, characterized in that it comprises a brake device at its lower end locking the closing of the stand plane (5) on the ascent plane (1), for example a friction pad ( 37) arranged on the internal face of the uprights (11) of the stand plane and which allows the upright to stop in alignment with the upright (9) of the climb plane. Elément d'articulation pour marchepied, caractérisé en ce qu'il comporte un corps à forme de collier apte à être emmanché à l'extrémité des montants (9, 11) des plans de béquille (5) et de montée (1) du marchepied et une partie tubulaire (29), de longueur égale à au moins vingt cinq millimètres (25 mm) destinée à former entretoise d'articulation entre deux montants voisins articulés (9, 11) des plans et tube récepteur des extrémités du tube de maintien (15) du marchepied monté à l'extrémité supérieure des montants (9) du plan de montée.Articulation element for a step, characterized in that it comprises a collar-shaped body capable of being fitted at the end of the uprights (9, 11) of the stand (5) and riser (1) planes of the step. and a tubular part (29), of length equal to at least twenty five millimeters (25 mm) intended to form articulation spacer between two neighboring articulated uprights (9, 11) of the planes and receiving tube of the ends of the holding tube ( 15) of the step mounted at the upper end of the uprights (9) of the climb plan.
EP95400075A 1994-01-19 1995-01-16 Foot-step Expired - Lifetime EP0664371B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9400532 1994-01-19
FR9400532A FR2715186B1 (en) 1994-01-19 1994-01-19 Running board.

Publications (2)

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EP0664371A1 true EP0664371A1 (en) 1995-07-26
EP0664371B1 EP0664371B1 (en) 1998-04-01

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EP95400075A Expired - Lifetime EP0664371B1 (en) 1994-01-19 1995-01-16 Foot-step

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AT (1) ATE164656T1 (en)
DE (1) DE69501903T2 (en)
FR (1) FR2715186B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1020650A3 (en) * 1999-01-18 2002-01-02 Avanti Stigefabrik A/S A coupling element
CN109381815A (en) * 2018-11-09 2019-02-26 捷达消防科技（苏州）股份有限公司 The telescoping ascending climbing ladder apparatus of emergency rescue fire vehicle

Citations (10)

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Publication number Priority date Publication date Assignee Title
FR317836A (en) * 1902-01-16 1902-09-30 Zaffaroni An advanced scale
US1817760A (en) * 1929-03-27 1931-08-04 Peters Adjustable automatic folding platform for step-ladders
DE600465C (en) * 1934-07-24 Ewald Kleinheisterkamp Articulated connection for double ladders
FR1177938A (en) * 1957-06-25 1959-04-30 Gloria Tuboria Scales upgrades
US3878917A (en) * 1973-07-16 1975-04-22 Leo Robert Mcbride Adjustable ladder support attachment
EP0033475A1 (en) * 1980-02-02 1981-08-12 Kümmerlin, Helga Double ladder
DE3240682A1 (en) * 1982-04-06 1984-05-10 Walter 7120 Bietigheim-Bissingen Kümmerlin Stepladder
US4926968A (en) * 1989-09-19 1990-05-22 Schumer Leroy F Ladder supports
GB2232715A (en) * 1989-06-07 1990-12-19 Paul F Egan Lockable pivot joint
FR2659110A1 (en) * 1990-03-02 1991-09-06 Vuillemenot Bertrand Hinged step ladder

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE600465C (en) * 1934-07-24 Ewald Kleinheisterkamp Articulated connection for double ladders
FR317836A (en) * 1902-01-16 1902-09-30 Zaffaroni An advanced scale
US1817760A (en) * 1929-03-27 1931-08-04 Peters Adjustable automatic folding platform for step-ladders
FR1177938A (en) * 1957-06-25 1959-04-30 Gloria Tuboria Scales upgrades
US3878917A (en) * 1973-07-16 1975-04-22 Leo Robert Mcbride Adjustable ladder support attachment
EP0033475A1 (en) * 1980-02-02 1981-08-12 Kümmerlin, Helga Double ladder
DE3240682A1 (en) * 1982-04-06 1984-05-10 Walter 7120 Bietigheim-Bissingen Kümmerlin Stepladder
GB2232715A (en) * 1989-06-07 1990-12-19 Paul F Egan Lockable pivot joint
US4926968A (en) * 1989-09-19 1990-05-22 Schumer Leroy F Ladder supports
FR2659110A1 (en) * 1990-03-02 1991-09-06 Vuillemenot Bertrand Hinged step ladder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1020650A3 (en) * 1999-01-18 2002-01-02 Avanti Stigefabrik A/S A coupling element
CN109381815A (en) * 2018-11-09 2019-02-26 捷达消防科技（苏州）股份有限公司 The telescoping ascending climbing ladder apparatus of emergency rescue fire vehicle
CN109381815B (en) * 2018-11-09 2023-08-18 捷达消防科技（苏州）股份有限公司 Telescopic climbing ladder device of rescue fire truck

Also Published As

Publication number Publication date
DE69501903D1 (en) 1998-05-07
FR2715186A1 (en) 1995-07-21
FR2715186B1 (en) 1996-04-05
EP0664371B1 (en) 1998-04-01
ATE164656T1 (en) 1998-04-15
DE69501903T2 (en) 1998-09-10

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