CA2534531C - Echelle escamotable configuree pour etre installee dans une ouverture - Google Patents

Echelle escamotable configuree pour etre installee dans une ouverture Download PDF

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Publication number
CA2534531C
CA2534531C CA002534531A CA2534531A CA2534531C CA 2534531 C CA2534531 C CA 2534531C CA 002534531 A CA002534531 A CA 002534531A CA 2534531 A CA2534531 A CA 2534531A CA 2534531 C CA2534531 C CA 2534531C
Authority
CA
Canada
Prior art keywords
ladder
rail
section
floor
space
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
CA002534531A
Other languages
English (en)
Other versions
CA2534531A1 (fr
Inventor
Brett A. Latimer
Ronald K. Burig
Christine A. Brown
David E. Plotner
John J. Fiumefreddo
Roy B. Bendickson
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.)
Werner Co
Original Assignee
Werner Co
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
Priority claimed from US10/635,897 external-priority patent/US6991063B2/en
Application filed by Werner Co filed Critical Werner Co
Publication of CA2534531A1 publication Critical patent/CA2534531A1/fr
Application granted granted Critical
Publication of CA2534531C publication Critical patent/CA2534531C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E04F11/04—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible
    • E04F11/06—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible collapsible, e.g. folding, telescopic
    • E04F11/062—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible collapsible, e.g. folding, telescopic folding
    • E04F11/064—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible collapsible, e.g. folding, telescopic folding with stringers overlapping when folded
    • 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
    • E06C1/38—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
    • E06C1/387—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 having tip-up steps
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/52—Ladders in general with non-rigid longitudinal members
    • E06C1/54—Ladders in general with non-rigid longitudinal members of the lazy-tongs type

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ladders (AREA)

Abstract

L'invention concerne une échelle escamotable ou pliable (100) configurée pour être installée dans une ouverture pour fournir un accès entre un niveau ou espace et un autre niveau ou espace. L'échelle selon l'invention comprend : une section d'échelle supérieure (110) pourvue d'un rail d'échelle gauche et d'un rail d'échelle droit ; une section d'échelle inférieure (130) équipée d'un rail d'échelle gauche et d'un rail d'échelle droit ; une charnière (400) reliant de manière rotative le rail d'échelle gauche de la section d'échelle supérieure au rail d'échelle gauche de la section d'échelle inférieure, ainsi que le rail d'échelle droit de la section d'échelle supérieure au rail d'échelle droit de la section d'échelle inférieure, et ; une pluralité de marches disposées de manière rotative entre la paire supérieure de rails d'échelle et la paire inférieure de rails d'échelle. Selon l'invention, cette pluralité de marches est configurée de manière à pouvoir tourner entre une position rétractée et une position déployée.
CA002534531A 2003-08-07 2004-08-05 Echelle escamotable configuree pour etre installee dans une ouverture Expired - Lifetime CA2534531C (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US10/635,897 US6991063B2 (en) 2003-08-07 2003-08-07 Stowable ladder configured for installation in an opening
US10/635,897 2003-08-07
US10/733,765 2003-12-12
US10/733,765 US6994184B2 (en) 2003-08-07 2003-12-12 Stowable ladder configured for installation in an opening
PCT/US2004/025225 WO2005017281A1 (fr) 2003-08-07 2004-08-05 Echelle escamotable configuree pour etre installee dans une ouverture

Publications (2)

Publication Number Publication Date
CA2534531A1 CA2534531A1 (fr) 2005-02-24
CA2534531C true CA2534531C (fr) 2009-01-06

Family

ID=34198353

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002534531A Expired - Lifetime CA2534531C (fr) 2003-08-07 2004-08-05 Echelle escamotable configuree pour etre installee dans une ouverture

Country Status (3)

Country Link
CA (1) CA2534531C (fr)
MX (1) MXPA06001436A (fr)
WO (1) WO2005017281A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102753770A (zh) * 2010-01-18 2012-10-24 "弗克莱"屋顶天窗有限公司 嵌入在纵深框架中的可折叠阶梯

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL220639B1 (pl) * 2011-10-06 2015-11-30 Fakro Pp Spółka Z Ograniczoną Odpowiedzialnością Schody składane, zwłaszcza czterosegmentowe
CN112761512A (zh) * 2021-01-13 2021-05-07 白银有色长通电线电缆有限责任公司 一种便携式多功能折叠梯子

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2649237A (en) 1950-11-01 1953-08-18 Minnesota Wood Specialties Inc Counterbalance and support means for ceiling-mounted folding stairways
US2852176A (en) 1954-09-13 1958-09-16 Prec Parts Corp Folding stairway
CH636166A5 (en) * 1978-09-15 1983-05-13 Erich Wachter Ladder
US4281743A (en) 1979-11-23 1981-08-04 Fuller George C Insulating enclosure for disappearing stairway
SE447589B (sv) 1981-11-03 1986-11-24 Midland Produktion Hopfellbar eller hopskjutbar stege for anvendning vid luckor anordnade i takoppningar
US4723631A (en) * 1986-09-17 1988-02-09 Raymond Tremblay Foldable ladder
US4757876A (en) * 1987-02-24 1988-07-19 Peacock William D Foldable tail gate step assembly
AT4864U1 (de) * 1998-10-23 2001-12-27 Wipplinger Robert Dachbodentreppe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102753770A (zh) * 2010-01-18 2012-10-24 "弗克莱"屋顶天窗有限公司 嵌入在纵深框架中的可折叠阶梯

Also Published As

Publication number Publication date
CA2534531A1 (fr) 2005-02-24
WO2005017281A1 (fr) 2005-02-24
MXPA06001436A (es) 2006-05-15

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Legal Events

Date Code Title Description
EEER Examination request
H11 Ip right ceased following rejected request for revival

Free format text: ST27 STATUS EVENT CODE: T-6-6-H10-H11-H101 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: TIME LIMIT FOR REVERSAL EXPIRED

Effective date: 20250210