EP1832709B1 - Gelenkköpfe für umwandelbare Leitern - Google Patents

Gelenkköpfe für umwandelbare Leitern Download PDF

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Publication number
EP1832709B1
EP1832709B1 EP07003861.7A EP07003861A EP1832709B1 EP 1832709 B1 EP1832709 B1 EP 1832709B1 EP 07003861 A EP07003861 A EP 07003861A EP 1832709 B1 EP1832709 B1 EP 1832709B1
Authority
EP
European Patent Office
Prior art keywords
transformable
heads
ladder
scale
uprights
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.)
Active
Application number
EP07003861.7A
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English (en)
French (fr)
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EP1832709A1 (de
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
Original Assignee
Macc SA
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 Macc SA filed Critical Macc SA
Publication of EP1832709A1 publication Critical patent/EP1832709A1/de
Application granted granted Critical
Publication of EP1832709B1 publication Critical patent/EP1832709B1/de
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Classifications

    • 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
    • E06C1/32—Ladders with a strut which is formed as a ladder and can be secured in line 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
    • E06C1/14—Ladders capable of standing by themselves
    • E06C1/16—Ladders capable of standing by themselves with hinged struts which rest on the ground
    • E06C1/18—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as ladders

Definitions

  • Patent 2,391,349 - MULLCA - describes a piece of articulation for transformable ladder head hinge and allowing the sliding of two planes between them and the double scaling at various levels to compensate for unevenness.
  • the heads of joints have shapes that do not allow the spacing planes if they are not in front of rungs or a stud.
  • the pads are located on the inner face of a plane and are in the middle of the interval between rungs.
  • the pads have the same rating as a rung and can thus be housed in the form provided on the plan to receive the rung. This feature therefore allows an offset setting every half scale intervals, a more accurate offset is thus obtained.
  • the hinge heads attached to the ends of the right and left uprights of a plane therefore a right hinge head and a left hinge head, allow two movements to the other plane namely, the sliding and the hinge. opening for double scaling.
  • the planes (1) (2) of the transformable scale (12) are guided in the upper part of the plane (2) by two heads of joints (3) (3 ').
  • the articulating heads (3) (3 ') slidably guide the plane (1) on the plane (2) by means of shapes (9) (9') and lips (13) (13 ') (14). ) (14 ') present on these same heads of joints (3) (3').
  • the planes (1) (2) articulate with each other to convert the transformable scale (12) of a double ladder slide on the joint heads (3) (3 ') when one of the steps (4) or studs (5) (5 ') integral with the uprights (17) (18) of the plane (1) of the transformable ladder (12) coincide with the outer forms (15) (15') (16) (16 ') arranged on said joint heads (3) (3 ').
  • the studs (5) (5 ') integral with the inner face of the uprights (17) (18) of the plane (1) are located in the middle of the interval of all the steps (4).
  • this arrangement makes it possible to make shifts of half a step step transformable (12) and 'get the settings more suitable for unevenness.
  • the studs (5) (5 ') are located over the entire height of the respective uprights (17) (18).
  • the hook (6) equipped with its rocking latch (19) and its symmetrical (6 ') not equipped with a rocker latch serve as a limit of movement to the deployment behind the plane (1) on the plane (2) because they respectively abut against the heads of joints (3) (3 ') on the outer forms (16) (16').

Landscapes

  • Ladders (AREA)

Claims (1)

  1. Verwandelbare Leiter bestehend aus zwei Teilen (1) (2), die jeweils aus zwei, über Sprossen (4) verbundenen Leiterbäumen (17) (18) (20) (21) bestehen, die gelenkig miteinander verbunden sind, wobei die Leiter Gelenkköpfe umfasst, dadurch gekennzeichnet, dass sich auf halber Distanz zwischen den Sprossen (4) auf der Innenseite der Leiterbäume (17) (18) und über die gesamte Höhe der Leiterbäume des Teils (1) Buchsen (5) (5') befinden, und dadurch, dass die Gelenkköpfe (3) (3') aus den Außenformen (15) (15') (16) (16') bestehen, die jeweils von den Seiten (7) (7') (8) (8') getragen werden, deren Anordnung derart ist, dass eine der Sprossen (4) bzw. eine der Buchsen (5) (5') zum Auseinanderhalten der Teile (1) (2) intuitiv zwischen den Lippen (13) (13') (14) (14') der Gelenkköpfe (3) (3') eingreift und somit auf jeder Höhe des Teils (1) ein halbschrittiges Positionieren ermöglicht.
EP07003861.7A 2006-03-10 2007-02-26 Gelenkköpfe für umwandelbare Leitern Active EP1832709B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0602244A FR2898381B1 (fr) 2006-03-10 2006-03-10 Tetes d'articulations pour echelles transformables

Publications (2)

Publication Number Publication Date
EP1832709A1 EP1832709A1 (de) 2007-09-12
EP1832709B1 true EP1832709B1 (de) 2013-11-27

Family

ID=37455860

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07003861.7A Active EP1832709B1 (de) 2006-03-10 2007-02-26 Gelenkköpfe für umwandelbare Leitern

Country Status (4)

Country Link
EP (1) EP1832709B1 (de)
ES (1) ES2440819T3 (de)
FR (1) FR2898381B1 (de)
PT (1) PT1832709E (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2476283A (en) * 2009-12-18 2011-06-22 Keith Phillips Attachment device to secure a ladder to a scaffold
FR3006362B1 (fr) * 2013-06-04 2017-08-25 Tubesca-Comabi Systeme d'echelle transformable
CN105221056B (zh) * 2014-06-03 2017-03-15 张仕杰 可强化支撑功能的工作梯
US12352106B2 (en) * 2020-11-18 2025-07-08 William Fink, JR. Safety step ladder with supported reach

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1837187A (en) * 1929-06-24 1931-12-22 Percy H Allen Convertible ladder
US3100552A (en) * 1961-02-21 1963-08-13 Hopfeld Henry Convertible ladder
FR2391349A1 (fr) * 1977-05-16 1978-12-15 Mullca Piece d'articulation pour echelle transformable
FR2428734A1 (fr) * 1978-06-12 1980-01-11 Genries Pierre Articulation d'echelle
FR2521208A1 (fr) * 1982-02-11 1983-08-12 Gubri Sa Ets L Dispositif accessoire pour echelles transformables
DE8811069U1 (de) * 1988-09-01 1988-11-10 Krause-Werk Gmbh & Co Kg, 6320 Alsfeld Verbindungselement

Also Published As

Publication number Publication date
FR2898381A1 (fr) 2007-09-14
FR2898381B1 (fr) 2009-10-02
EP1832709A1 (de) 2007-09-12
PT1832709E (pt) 2014-01-10
ES2440819T3 (es) 2014-01-30

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