EP1443173B1 - Marche additionelle coulissante escamotable pour des échelles ou similaires - Google Patents

Marche additionelle coulissante escamotable pour des échelles ou similaires Download PDF

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Publication number
EP1443173B1
EP1443173B1 EP20040001149 EP04001149A EP1443173B1 EP 1443173 B1 EP1443173 B1 EP 1443173B1 EP 20040001149 EP20040001149 EP 20040001149 EP 04001149 A EP04001149 A EP 04001149A EP 1443173 B1 EP1443173 B1 EP 1443173B1
Authority
EP
European Patent Office
Prior art keywords
tubes
retractable sliding
sliding step
additional retractable
fixed lower
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 - Lifetime
Application number
EP20040001149
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German (de)
English (en)
Other versions
EP1443173A1 (fr
Inventor
Jean-Paul Merigot
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.)
Macc SA
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Macc SA
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Publication date
Application filed by Macc SA filed Critical Macc SA
Publication of EP1443173A1 publication Critical patent/EP1443173A1/fr
Application granted granted Critical
Publication of EP1443173B1 publication Critical patent/EP1443173B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E06C7/08—Special construction of longitudinal members, or rungs or other treads
    • E06C7/082—Connections between rungs or treads and longitudinal members
    • E06C7/083—Bracket type connection
    • 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
    • E06C1/22—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as poles with extensible, e.g. telescopic, ladder parts or 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
    • E06C1/38—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
    • 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
    • E06C1/397—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 characterised by having wheels, rollers, or runners
    • 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
    • E06C7/44—Means for mounting ladders on uneven ground

Definitions

  • Man uses certain materials such as ladders, stepladders, individual work platforms to enable him to carry out different works at varying heights.
  • the equipment used is often equipped with fixed steps and adjustable telescopic legs to reach higher working heights (for example DE 29701938 U or US 6,073,726 ).
  • a step or a step is added by folding on the telescopic legs. This known arrangement does not make it possible to obtain all the rigidity and consequently the safety offered by this type of step.
  • the present invention aims to remedy these shortcomings by completing the equipment provided with telescopic legs of a retractable sliding step.
  • This sliding step located at the outgoing telescopic portion of the feet, avoids excessive spacing between the support floor and the first lower fixed step when the telescopic legs are deployed.
  • the user can go up or down safely without undergoing an unpleasant or dangerous shift between the support floor and the fixed lower step of the equipment.
  • This sliding step added between the feet is designed to offer, on the other hand, a high resistance to torsional effects due to the effects of rise and fall under the weight of the user. In the folded position, this step is maintained under the first fixed lower step of the apparatus. This maintenance is ensured by clipping so as to avoid any inconvenience for the user when the use of this sliding step is no longer necessary.
  • the additional retractable sliding step consists of two horizontal tubes coming from both sides of the generatrices of the telescopic legs and are joined by two plates. It is this arrangement that provides the good resistance to the torsion effect mentioned above.
  • the two plates connecting the two horizontal tubes support two vertical tubes sliding. This sliding is done in two tube tubes integral with the telescopic legs.
  • the constitution of the other fixed steps of the apparatus by two parallel tubes makes it possible to slide between them the two vertical tubes of the additional sliding retractable step. This sliding of the value of a spacing between running is limited by stops located on the upper end of the guide pipe tubes.
  • FIG. 1 represents, by way of example, a perspective view of an individual platform of work telescopic legs released, equipped with the additional step sliding retractable.
  • Figure 2 shows a partial view in perspective of the telescopic legs, fixed steps side, out and additional sliding retractable sliding step.
  • FIG 3 shows a partial perspective view from below of two fixed steps of the individual work platform with retracted telescopic legs, the additional sliding retractable step is clipped under the lower fixed step.
  • Figure 4 shows a partial view in perspective of the retractable sliding step folded with its locking system.
  • the retractable sliding additional step (1) consists of two horizontal tubes (9) and (9 ') united by two plates (7) and (7') integral with two vertical tubes (4). and (4 ') sliding.
  • the two vertical tubes (4) and (4 ') slide in two guide tube tubes (5) and (5') welded to the inside face of each of the female parts (14) and (14 ') telescopic legs (2) and (2') and located between the two horizontal tubes (10) and (10 ') constituting the lower fixed step (12) integral with the female portions (14) and (14') telescopic legs (2) and (2 ').
  • the additional retractable sliding step (1) is held in the folded position and clipped under the lower fixed step (12) consisting of the two horizontal tubes (10) and (10 ') integral with the female parts (14). and (14 ') telescopic legs (2) and (2') by means of a flexible tongue (8) itself secured to the horizontal tube (10).
  • this flexible tongue (8) has a notch (11) which comes after flexibility, to bear on the horizontal tube (9) of the additional sliding retractable step (1), to hold it in its folded position .
  • the two vertical tubes (4) and (4 ') of the additional retractable sliding step (1) are equipped at their upper end with stops (6) and (6') which come to bear on the upper end of the two guide tube tubes (5) and (5 ') when the additional sliding retractable step (1) is in the extended position.
  • the ends (3) and (3 ') of the two horizontal tubes (9) and (9') joined by two plates (7) and (7 ') of the additional step retractable slider (1) are located on both sides of the female parts (14) and (14 ') of the telescopic legs (2) and (2') so as to give the additional retractable sliding step (1) a very good resistance to torsion under the effect of the weight of the user.
  • the lower fixed step (12) and the fixed step (12 ') of the individual work platform (13) consist respectively of two horizontal tubes (10) and (10'). and two horizontal tubes (15) and (15 '), these tubes are secured to the female parts (14) and (14') of the telescopic legs (2) and (2 ') and are spaced to allow in the meantime obtained the sliding of the additional sliding retractable step (1).
  • the lower fixed step (12) of the individual working platform (13) consists of two horizontal tubes (10) and (10 '), and these tubes integral with the female parts (14). and (14 ') telescopic legs (2) and (2') are spaced so as to allow the housing of the two guide tubes tubes (5) and (5 ') in which will slide the two vertical tubes (4) and (4 ') of the additional retractable sliding step (1) during its ascent under the lower fixed step (12).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)

Description

  • L'Homme utilise certains matériels comme les échelles, les escabeaux, les plates-formes individuelles de travail pour lui permettre de réaliser différents travaux à des hauteurs variables.
  • Pour satisfaire cette variabilité des hauteurs d'intervention les matériels utilisés sont souvent équipés de marches fixes et de pieds télescopiques réglables permettant d'atteindre des hauteurs de travail plus grandes (cf. par exemple DE 29701938 U ou US 6 073 726 ). Pour compenser ces réglages une marche ou un échelon est rajouté par rabattement sur les pieds télescopiques. Cette disposition connue ne permet pas d'obtenir toute la rigidité et par voie de conséquence la sécurité offerte par ce type de marche.
  • La présente invention a pour but de remédier à ces insuffisances en complétant les matériels pourvus de pieds télescopiques d'une marche coulissante escamotable. Cette marche coulissante située au niveau de la partie télescopique sortante des pieds, permet d'éviter un espacement trop important entre le sol d'appui et la première marche fixe inférieure lorsque les pieds télescopiques sont déployés. Ainsi, l'utilisateur pourra monter ou descendre en toute sécurité sans subir de décalage désagréable, voire dangereux entre le sol d'appui et la marche inférieure fixe du matériel.
  • Cette marche coulissante ajoutée entre les pieds est conçue de manière à offrir, d'autre part, une grande résistance aux effets de torsion dus aux effets de montée et de descente sous le poids de l'utilisateur. En position repliée, cette marche est maintenue sous la première marche inférieure fixe de l'appareil. Ce maintien est assuré par clipsage de façon à éviter toute gêne pour l'utilisateur lorsque l'utilisation de cette marche coulissante n'est plus nécessaire.
  • La marche additionnelle coulissante escamotable est constituée de deux tubes horizontaux venant de part et d'autre des génératrices des pieds télescopiques et sont réunis par deux plats. C'est cette disposition qui assure la bonne résistance à l'effet de torsion évoqué précédemment.
  • Les deux plats reliant les deux tubes horizontaux supportent deux tubes verticaux coulissants. Ce coulissement se fait dans deux tubes fourreaux solidaires des pieds télescopiques. La constitution des autres marches fixes de l'appareil par deux tubes parallèles permet de faire coulisser entre ceux-ci les deux tubes verticaux de la marche additionnelle coulissante escamotable. Ce coulissement de la valeur d'un espacement entre marche est limité par des butées situées sur l'extrémité supérieure des tubes fourreaux de guidage.
  • La figure 1 représente, à titre d'exemple, une vue en perspective d'une plate-forme individuelle de travail pieds télescopiques sortis, équipée de la marche additionnelle coulissante escamotable.
  • La figure 2 représente une vue partielle et en perspective des pieds télescopiques, coté marches fixes, sortis et la marche additionnelle coulissante escamotable déployée.
  • La figure 3 représente une vue partielle en perspective vue de dessous de deux marches fixes de la plate-forme individuelle de travail avec pieds télescopiques rentrés, dont la marche additionnelle coulissante escamotable est clipsée sous la marche fixe inférieure.
  • La figure 4 représente une vue partielle et en perspective de la marche coulissante escamotable repliée avec son système de blocage.
  • Selon les figures 1, 2, 4 la marche additionnelle coulissante escamotable (1) est constituée de deux tubes horizontaux (9) et (9') réunis par deux plats (7) et (7') solidaires de deux tubes verticaux (4) et (4') coulissants.
  • Suivant les figures 1, 2, 4, les deux tubes verticaux (4) et (4') coulissent dans deux tubes fourreaux de guidage (5) et (5') soudés sur la face intérieure de chacune des parties femelles (14) et (14') des pieds télescopiques (2) et (2') et situés entre les deux tubes horizontaux (10) et (10') constituant la marche fixe inférieure (12) solidaire des parties femelles (14) et (14') des pieds télescopiques (2) et (2').
  • Suivant la figure 3 et 4, la marche additionnelle coulissante escamotable (1) est maintenue en position repliée et clipsée sous la marche fixe inférieure (12) constituée des deux tubes horizontaux (10) et (10') solidaires des parties femelles (14) et (14') des pieds télescopiques (2) et (2') au moyen d'une languette flexible (8) elle-même solidaire du tube horizontal (10).
  • Suivant les figures 3 et 4, cette languette flexible (8) possède un cran (11) qui vient après flexibilité, prendre appui sur le tube horizontal (9) de la marche additionnelle coulissante escamotable (1), pour la retenir dans sa position repliée.
  • Suivant les figures 1 et 2, les deux tubes verticaux (4) et (4') de la marche additionnelle coulissante escamotable (1) sont équipés à leur extrémité supérieure des butées (6) et (6') qui viennent prendre appui sur l'extrémité supérieure des deux tubes fourreaux de guidage (5) et (5') lorsque la marche additionnelle coulissante escamotable (1) est en position déployée.
  • Suivant les figures 1, 2, 3, 4, les extrémités (3) et (3') des deux tubes horizontaux (9) et (9') réunis par deux plats (7) et (7') de la marche additionnelle escamotable coulissante (1), sont situées de part et d'autre des parties femelles (14) et (14') des pieds télescopiques (2) et (2') de façon à conférer à la marche additionnelle coulissante escamotable (1) une très bonne résistance à la torsion sous l'effet du poids de l'utilisateur.
  • Suivant les figures 1, 2, 3, la marche fixe inférieure (12) et la marche fixe (12') de la plate-forme individuelle de travail (13) sont constituées respectivement de deux tubes horizontaux (10) et (10') et de deux tubes horizontaux (15) et (15'), ces tubes sont solidaires des parties femelles (14) et (14') des pieds télescopiques (2) et (2') et sont écartés pour permettre dans l'intervalle ainsi obtenu le coulissement de la marche additionnelle coulissante escamotable (1).
  • Suivant les figures 1, 2, 4 la marche fixe inférieure (12) de la plate forme individuelle de travail (13) est constituée de deux tubes horizontaux (10) et (10'), et ces tubes solidaires des parties femelles (14) et (14') des pieds télescopiques (2) et (2') sont écartés de façon à permettre le logement des deux tubes fourreaux de guidage (5) et (5') dans lesquels viendront coulisser les deux tubes verticaux (4) et (4') de la marche additionnelle coulissante escamotable (1) lors de sa remontée sous la marche fixe inférieure (12).

Claims (5)

  1. Marche additionnelle coulissante escamotable (1) adaptable sur les matériels type échelles, échafaudages, plates-formes individuelles de travail dont les pieds d'appui sont télescopiques et réglables, et pourvus d'au moins une marche fixe inférieure (12) constituée de deux tubes horizontaux (10) et (10') solidaires de part et d'autre des parties femelles (14) et (14') des pieds télescopiques (2) et (2') caractérisée en ce qu'elle est, elle-même, constituée de deux tubes horizontaux (9) et (9') réunis par deux plats (7) et (7') solidaires de deux tubes verticaux (4) et (4') qui coulissent dans deux tubes fourreaux de guidage (5) et (5') destinés à être soudés sur chacune des faces intérieures des parties femelles (14) et (14') des pieds télescopiques (2) et (2'), et destinées à être situés entre les deux tubes horizontaux (10) et (10') de la marche fixe inférieure (12).
  2. Marche additionnelle coulissante escamotable (1), suivant revendication 1, caractérisée en ce que sa conception particulière constituée de deux tubes horizontaux (9) et (9') dont les extrémités (3) et (3') sont {-} situées de part et d'autre des génératrices des parties femelles (14) et (14') des pieds télescopiques (2) et (2') de façon à conférer à la marche additionnelle coulissante escamotable (1) une résistance importante à la torsion due à l'effet de poids de l'utilisateur conférant ainsi à celui-ci une meilleure sécurité.
  3. Marche additionnelle coulissante escamotable (1), suivant revendication 1, caractérisée en ce que la marche fixe inférieure (12) de la plate-forme individuelle de travail (13) à pieds télescopiques (2) et (2') constitués de deux tubes horizontaux (10) et (10') solidaires des parties femelles (14) et (14') des pieds télescopiques (2) et (2') sont suffisamment écartés pour pouvoir recevoir les deux tubes fourreaux de guidage (5) et (5') dans lesquels viendront coulisser les tubes verticaux (4) et (4') de la marche additionnelle coulissante escamotable (1) lors de sa remontée sous la marche fixe inférieure (12).
  4. Marche additionnelle coulissante escamotable (1), suivant revendications 1 et 3, caractérisée en ce que les tubes verticaux (4) et (4') comportent en leur extrémité supérieure des butées (6) et (6') venant coopérer avec l'extrémité supérieure des deux tubes fourreaux de guidage (5) et (5') de façon à éviter toute sortie intempestive de la marche additionnelle coulissante escamotable (1).
  5. Marche additionnelle coulissante escamotable (1), suivant revendications 1 et 3, caractérisée en ce qu'elle est maintenue en position de non utilisation sous la marche fixe inférieure (12) par une languette flexible (8) destinée à être solidarisée du tube horizontal (10) de la dite marche fixe inférieure (12), et possédant un cran (11) qui est destiné à prendre appui sur le tube horizontal (9) pour le bloquer et éviter toute descente non désirée de la marche additionnelle coulissante escamotable (1).
EP20040001149 2003-02-03 2004-01-21 Marche additionelle coulissante escamotable pour des échelles ou similaires Expired - Lifetime EP1443173B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0301219 2003-02-03
FR0301219A FR2850703B1 (fr) 2003-02-03 2003-02-03 Marche additionnelle coulissante escamotable

Publications (2)

Publication Number Publication Date
EP1443173A1 EP1443173A1 (fr) 2004-08-04
EP1443173B1 true EP1443173B1 (fr) 2007-11-21

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EP20040001149 Expired - Lifetime EP1443173B1 (fr) 2003-02-03 2004-01-21 Marche additionelle coulissante escamotable pour des échelles ou similaires

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EP (1) EP1443173B1 (fr)
DE (1) DE602004010195D1 (fr)
FR (1) FR2850703B1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007110888A1 (fr) * 2006-03-24 2007-10-04 Aris S.R.L. Escabeau pliable a faible encombrement
CN105545200A (zh) * 2016-01-29 2016-05-04 成都绿迪科技有限公司 一种携带方便的园林梯
CN108661544A (zh) * 2018-06-14 2018-10-16 芜湖博康机电有限公司 一种便捷手扶梯
FR3121166B1 (fr) 2021-03-25 2023-04-14 Cdh Group Dispositif d’accès en hauteur tel que plateforme avec stabilisateurs et pieds télescopiques

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29701938U1 (de) * 1997-02-04 1997-04-24 Goedde Rainer Teleskopstehleiter
FR2764320A1 (fr) * 1997-06-09 1998-12-11 Coltel Ets Plate-forme de travail individuelle et mobile a plancher de travail reglable en hauteur
US6073726A (en) * 1998-11-16 2000-06-13 Mccrystal; James D. Adjustable step ladder
US6209683B1 (en) * 1999-07-22 2001-04-03 Dale Roy Holtz Adjustable sawhorse

Also Published As

Publication number Publication date
EP1443173A1 (fr) 2004-08-04
DE602004010195D1 (de) 2008-01-03
FR2850703B1 (fr) 2005-09-16
FR2850703A1 (fr) 2004-08-06

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