EP0160600B1 - Escabeau repliable - Google Patents

Escabeau repliable Download PDF

Info

Publication number
EP0160600B1
EP0160600B1 EP85400661A EP85400661A EP0160600B1 EP 0160600 B1 EP0160600 B1 EP 0160600B1 EP 85400661 A EP85400661 A EP 85400661A EP 85400661 A EP85400661 A EP 85400661A EP 0160600 B1 EP0160600 B1 EP 0160600B1
Authority
EP
European Patent Office
Prior art keywords
uprights
upright
main
auxiliary
articulated
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
EP85400661A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0160600A3 (en
EP0160600A2 (fr
Inventor
Gérard Stoltz
Denyse Stoltz
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.)
CESSIONE;ETABLISSEMENTS TESTARD ET COMPAGNIE
Original Assignee
Gérard Stoltz
Denyse Stoltz
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 Gérard Stoltz, Denyse Stoltz filed Critical Gérard Stoltz
Priority to AT85400661T priority Critical patent/ATE37739T1/de
Publication of EP0160600A2 publication Critical patent/EP0160600A2/fr
Publication of EP0160600A3 publication Critical patent/EP0160600A3/fr
Application granted granted Critical
Publication of EP0160600B1 publication Critical patent/EP0160600B1/fr
Expired legal-status Critical Current

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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
    • E06C1/38—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
    • E06C1/383—Foldable ladders in which the longitudinal members are brought together on folding
    • E06C1/3835—Foldable ladders in which the longitudinal members are brought together on folding having collapsible steps comprising a hinge in their central part

Definitions

  • the present invention relates to a foldable stepladder.
  • step ladders are not always absolutely perfect as evidenced by document FR-A-2401 302 where only one auxiliary amount is provided.
  • the object of the present invention is to remedy these drawbacks.
  • the auxiliary uprights are hinged together around an axis in their middle part to present in the deployed service position the shape of a cross, said auxiliary uprights being connected from said point of mutual articulation to the central upright by a link.
  • the opening of the stepladder is total and simultaneous during the opening of the auxiliary uprights by spreading the main uprights.
  • the stability is excellent the rear auxiliary uprights forming a three-branch triangulation with the spacer rod.
  • stepladder Since the stepladder does not require any locking, its opening and closing can be carried out in a single maneuver.
  • a stepladder which comprises two main uprights 1 and 2, a central upright 3 and steps in two parts 4 and 5 which are each pivoted, of a on the one hand, on the main uprights around axes 6, 7, respectively perpendicular to the plane of the main uprights 1, 2 and in fact generally horizontal, on the other hand, on the central upright around axes 8, parallel to said axes 6 and 7.
  • the steps 4, 5 have in cross section a trapezoidal shape with a flat support part.
  • the two branches 11 and 12 of a compass which are articulated together around an axis 13, said branches whose length is greater than parts 4 and 5 of the steps form an angle, the point of which is directed upwards to engage in a corresponding housing provided at the base of the central upright 3 when the stepladder is in the unfolded position (Fig. 2).
  • auxiliary uprights 14, 15 which rest on the ground by their other end 16, 17, said auxiliary uprights being hinged together in their middle part around d 'an axis 18 to present in the deployed service position (Fig. 2) the shape of a cross.
  • the auxiliary uprights 14, 15 are connected from the articulation axis 18 by a link 19 to the central upright 3.
  • one of the ends of the link 19 is articulated around an axis 20 mounted on a yoke 21 itself articulated on the axis 18 for connecting the auxiliary uprights 14, 15, at its other end the link 19 is articulated on an axis 23 engaged on the central upright 3.
  • auxiliary uprights 14, 15 (FIG. 4, 5) on the upper part of the main uprights 1, 2 is produced by means of hinges 24, 25.
  • Each hinge such as 24 has an axis 26 and two branches 27, 28 which are articulated respectively around an axis 29 on the main upright 1, and around an axis 30 on the auxiliary upright 14, 15.
  • the axis 26 of the hinge 24, 25 is perpendicular to the axes 29 and 30 of articulation on the main upright 1, 2 and on the auxiliary upright 14, 15.
  • a cross member 32 is hinged around an axis 31 (Fig. 1, 2, 3) consisting of a U-shaped profile, the other end of which is removably attached to the upright 2 by means of a pin 33 connected to said upright by a chain 34.
  • the cross member 32 constitutes a gutter capable of supporting
  • the device according to the invention operates in the following manner.
  • stepladder When the stepladder is in the folded position as shown in FIG. 1, it suffices to move the main uprights 1, 2 laterally apart from one another so that the two parts 4, 5 of the steps occupy a horizontal position service and that the two arms of the compass 11, 12 abut by their top against the central upright 3.
  • the spacer rod 19 with the auxiliary uprights 14, 15 form a triangulation with three branches which ensures excellent stability of the stepladder.

Landscapes

  • Ladders (AREA)
  • Pens And Brushes (AREA)
  • Cartons (AREA)
  • Food-Manufacturing Devices (AREA)
  • Air Bags (AREA)
  • Table Devices Or Equipment (AREA)
  • Gloves (AREA)
EP85400661A 1984-04-25 1985-04-03 Escabeau repliable Expired EP0160600B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85400661T ATE37739T1 (de) 1984-04-25 1985-04-03 Zusammenklappbare trittleiter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8406489A FR2563566B1 (fr) 1984-04-25 1984-04-25 Escabeau repliable
FR8406489 1984-04-25

Publications (3)

Publication Number Publication Date
EP0160600A2 EP0160600A2 (fr) 1985-11-06
EP0160600A3 EP0160600A3 (en) 1986-07-23
EP0160600B1 true EP0160600B1 (fr) 1988-10-05

Family

ID=9303464

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85400661A Expired EP0160600B1 (fr) 1984-04-25 1985-04-03 Escabeau repliable

Country Status (10)

Country Link
US (1) US4569419A (es)
EP (1) EP0160600B1 (es)
JP (1) JPS60242288A (es)
AT (1) ATE37739T1 (es)
CA (1) CA1215951A (es)
DE (1) DE3565419D1 (es)
ES (1) ES295824Y (es)
FR (1) FR2563566B1 (es)
HU (1) HU192208B (es)
ZA (1) ZA852826B (es)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4947962A (en) * 1989-08-21 1990-08-14 Helsper Steve M Adjustable scaffold support
US5685394A (en) * 1994-03-29 1997-11-11 Simson; Bruce Norman Unwin Automatic blockading system device for ladders or folding portable stepladder in transversal sense
WO2003014516A1 (en) 2001-08-10 2003-02-20 Ghost Manufacturing Incorporated Collapsible step ladder and carrying case
US6866119B2 (en) * 2003-02-11 2005-03-15 Edward Zheng Ladder with side support enhancement
DE102007014826B3 (de) * 2007-03-28 2008-12-18 W+W Aufzugkomponenten Gmbh U. Co. Kg Zusammenklappbare Stufen-Anlegeleiter zum Abstieg in Aufzugschachtgruben
US8365865B2 (en) 2009-03-03 2013-02-05 Wing Enterprises, Inc. Adjustable ladders and related methods
ES2377615B1 (es) 2010-04-15 2012-12-04 Ajm Santos, S.L.L. Escalera plegable.
WO2012033948A1 (en) 2010-09-08 2012-03-15 Lock N Climb, Llc Collapsible safe ladder
US9145733B2 (en) * 2013-01-24 2015-09-29 Wing Enterprises, Inc. Adjustable ladders and related components
USD733931S1 (en) 2013-09-09 2015-07-07 Lock N Climb, Llc Ladder towing apparatus
USD734500S1 (en) 2013-09-09 2015-07-14 Lock N Climb, Llc Ladder towing apparatus
USD745191S1 (en) 2014-05-27 2015-12-08 Lock N Climb, Llc Ladder
US10246939B1 (en) 2016-02-19 2019-04-02 Blue Moon Designs, LLC Folding and rigid ladder with extensions
US20190383098A1 (en) * 2018-06-14 2019-12-19 Shou-I Sun Horizontally extendable ladder

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US419821A (en) * 1890-01-21 Neau burrows
FR773924A (es) * 1934-11-27
US958732A (en) * 1908-03-06 1910-05-24 Dennis Novelty Ladder Company Ladder.
US1054108A (en) * 1912-05-16 1913-02-25 Lee O Garraway Folding step-ladder.
US1108896A (en) * 1913-12-01 1914-09-01 Lee Ozer Garraway Folding step-ladder.
US1337361A (en) * 1919-07-02 1920-04-20 Kasper Stanley Convertible ladder and bench
FR568061A (fr) * 1923-06-29 1924-03-14 échelle pliante
US1783686A (en) * 1928-03-17 1930-12-02 Samuel F Williams Folding ladder
US2184486A (en) * 1936-03-31 1939-12-26 Chew William Stepladder, trestle, and the like
GB763742A (en) * 1954-05-17 1956-12-19 Cyril Harcourt Matthews Improvements in or relating to step ladders
BE587304A (fr) * 1959-10-21 1960-05-30 Battista Lamberti Echelle à éléments repliables les uns sur les autres.
US3084760A (en) * 1960-01-18 1963-04-09 Lamberti Battista Stepladder with folding elements
US4016954A (en) * 1974-03-14 1977-04-12 Inventec International Limited Foldable ladder
US3901354A (en) * 1974-07-05 1975-08-26 Alex J Grebausky Stepladder stabilizer

Also Published As

Publication number Publication date
EP0160600A3 (en) 1986-07-23
FR2563566B1 (fr) 1987-06-26
US4569419A (en) 1986-02-11
EP0160600A2 (fr) 1985-11-06
ZA852826B (en) 1985-12-24
DE3565419D1 (en) 1988-11-10
ES295824Y (es) 1987-12-16
HUT39494A (en) 1986-09-29
FR2563566A1 (fr) 1985-10-31
JPS60242288A (ja) 1985-12-02
HU192208B (en) 1987-05-28
ES295824U (es) 1987-06-16
ATE37739T1 (de) 1988-10-15
CA1215951A (en) 1986-12-30

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