EP1975368A3 - Collapsible ladder for descending into lift shafts - Google Patents

Collapsible ladder for descending into lift shafts Download PDF

Info

Publication number
EP1975368A3
EP1975368A3 EP08003881A EP08003881A EP1975368A3 EP 1975368 A3 EP1975368 A3 EP 1975368A3 EP 08003881 A EP08003881 A EP 08003881A EP 08003881 A EP08003881 A EP 08003881A EP 1975368 A3 EP1975368 A3 EP 1975368A3
Authority
EP
European Patent Office
Prior art keywords
legs
descending
ladder
side rails
collapsible ladder
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
EP08003881A
Other languages
German (de)
French (fr)
Other versions
EP1975368A2 (en
EP1975368B1 (en
Inventor
Georg Wallraff
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.)
W+w Aufzugkomponenten U Co KG GmbH
Original Assignee
W+w Aufzugkomponenten U Co KG GmbH
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 W+w Aufzugkomponenten U Co KG GmbH filed Critical W+w Aufzugkomponenten U Co KG GmbH
Priority to PL08003881T priority Critical patent/PL1975368T3/en
Priority to EP14000502.6A priority patent/EP2740880B1/en
Publication of EP1975368A2 publication Critical patent/EP1975368A2/en
Publication of EP1975368A3 publication Critical patent/EP1975368A3/en
Application granted granted Critical
Publication of EP1975368B1 publication Critical patent/EP1975368B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • E06C7/084—Rungs comprising projecting tabs or flanges
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/18—Devices for preventing persons from falling
    • E06C7/188—Accessories for temporary stabilising a ladder, e.g. temporary attaching devices
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/48—Ladder heads; Supports for heads of ladders for resting against objects

Abstract

Zusammenklappbare Stufen-Anlegeleiter für Aufzugschachtgruben, bestehend aus
- zwei Seitenholmen (1, 2) in Form von U-Profilen mit nach innen, d.h. aufeinander zu gerichteten Schenkeln (1.1; 2.1), und
- Stufen (3), die im wesentlichen die Form von U-Profilen haben, deren U-Profilschenkel derart an den Seitenholmen (1, 2) angelenkt sind, dass die Seitenholme (1, 2) relativ zueinander aufeinander zu bzw. voneinander weg verstellbar sind,

dadurch gekennzeichnet, dass die Schenkel (2.1) des Seitenholms (2), in den die Stufen (3) im zusammengeklappten Zustand der Leiter einklappbar sind, eine an die Stufenhöhe angepasste Höhe haben, während die Schenkel (1.1) des gegenüberliegenden Seitenholms (1) eine geringere Höhe als die Schenkel (2.1) haben.

Figure imgaf001
Collapsible step ladder for hoistway pits, consisting of
- Two side rails (1, 2) in the form of U-profiles with inwardly, ie towards each other directed legs (1.1, 2.1), and
- Steps (3), which have substantially the shape of U-profiles whose U-profile legs are hinged to the side rails (1, 2) such that the side rails (1, 2) relative to each other towards or away from each other adjustable are,

characterized in that the legs (2.1) of the side rail (2), in which the steps (3) are folded in the folded state of the ladder, have a height adapted to the step height, while the legs (1.1) of the opposite side spar (1) have a lower height than the legs (2.1).
Figure imgaf001
EP08003881.3A 2007-03-28 2008-03-03 Collapsible ladder for descending into lift shafts Active EP1975368B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL08003881T PL1975368T3 (en) 2007-03-28 2008-03-03 Collapsible ladder for descending into lift shafts
EP14000502.6A EP2740880B1 (en) 2007-03-28 2008-03-03 Collapsible ladder for descending into lift shafts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007014826A DE102007014826B3 (en) 2007-03-28 2007-03-28 Collapsible step ladders for descent into hoistway pits

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP14000502.6A Division EP2740880B1 (en) 2007-03-28 2008-03-03 Collapsible ladder for descending into lift shafts
EP14000502.6A Division-Into EP2740880B1 (en) 2007-03-28 2008-03-03 Collapsible ladder for descending into lift shafts

Publications (3)

Publication Number Publication Date
EP1975368A2 EP1975368A2 (en) 2008-10-01
EP1975368A3 true EP1975368A3 (en) 2012-10-31
EP1975368B1 EP1975368B1 (en) 2014-10-15

Family

ID=39529605

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08003881.3A Active EP1975368B1 (en) 2007-03-28 2008-03-03 Collapsible ladder for descending into lift shafts
EP14000502.6A Active EP2740880B1 (en) 2007-03-28 2008-03-03 Collapsible ladder for descending into lift shafts

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP14000502.6A Active EP2740880B1 (en) 2007-03-28 2008-03-03 Collapsible ladder for descending into lift shafts

Country Status (4)

Country Link
EP (2) EP1975368B1 (en)
DE (1) DE102007014826B3 (en)
ES (2) ES2585577T3 (en)
PL (1) PL1975368T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108756717A (en) * 2018-06-15 2018-11-06 佛山科学技术学院 It is a kind of that there is the folding ladder for reinforcing servomotor
USD966556S1 (en) 2019-12-13 2022-10-11 Murphy Ladder Llc Ladder

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1165588A (en) * 1915-05-25 1915-12-28 Lee O Garraway Folding step-ladder.
NL7503024A (en) * 1974-03-14 1975-09-16 Hickman Designs Ltd FOLDING LADDER.
NL7900840A (en) * 1978-02-06 1979-08-08 Primerano Eugenio LADDER.
JPS594000U (en) * 1982-06-30 1984-01-11 四国化成工業株式会社 A foldable ladder
EP0160600A2 (en) * 1984-04-25 1985-11-06 Gérard Stoltz Folding step ladder
JPS6152494A (en) * 1984-08-22 1986-03-15 山崎産業株式会社 Stepladder
JPS62160099U (en) * 1986-04-01 1987-10-12
CN2068576U (en) * 1990-05-29 1991-01-02 刘振毅 Domestic folding ladder
EP1749966A2 (en) * 2005-08-02 2007-02-07 Laddaloc Pty Ltd Collapsible ladder

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4998982A (en) * 1988-12-16 1991-03-12 Arnold William F Metal ladder construction with reinforced side rails
FR2725971A1 (en) * 1994-10-06 1996-04-26 Hognon Sa Accessing tank or pool bottoms with elevators
US6536558B2 (en) 2001-02-16 2003-03-25 Harold E. Price Folding ladder
DE102004030897A1 (en) * 2004-06-25 2006-11-23 Stingl Systems Gmbh ladder

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1165588A (en) * 1915-05-25 1915-12-28 Lee O Garraway Folding step-ladder.
NL7503024A (en) * 1974-03-14 1975-09-16 Hickman Designs Ltd FOLDING LADDER.
NL7900840A (en) * 1978-02-06 1979-08-08 Primerano Eugenio LADDER.
JPS594000U (en) * 1982-06-30 1984-01-11 四国化成工業株式会社 A foldable ladder
EP0160600A2 (en) * 1984-04-25 1985-11-06 Gérard Stoltz Folding step ladder
JPS6152494A (en) * 1984-08-22 1986-03-15 山崎産業株式会社 Stepladder
JPS62160099U (en) * 1986-04-01 1987-10-12
CN2068576U (en) * 1990-05-29 1991-01-02 刘振毅 Domestic folding ladder
EP1749966A2 (en) * 2005-08-02 2007-02-07 Laddaloc Pty Ltd Collapsible ladder

Also Published As

Publication number Publication date
PL1975368T3 (en) 2015-03-31
ES2585577T3 (en) 2016-10-06
DE102007014826B3 (en) 2008-12-18
EP2740880B1 (en) 2016-05-04
EP2740880A1 (en) 2014-06-11
ES2524874T3 (en) 2014-12-15
EP1975368A2 (en) 2008-10-01
EP1975368B1 (en) 2014-10-15

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