EP4325024A3 - Ladder - Google Patents

Ladder Download PDF

Info

Publication number
EP4325024A3
EP4325024A3 EP24150659.1A EP24150659A EP4325024A3 EP 4325024 A3 EP4325024 A3 EP 4325024A3 EP 24150659 A EP24150659 A EP 24150659A EP 4325024 A3 EP4325024 A3 EP 4325024A3
Authority
EP
European Patent Office
Prior art keywords
ladder
rail
foldable
collapsible
rungs
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.)
Pending
Application number
EP24150659.1A
Other languages
German (de)
French (fr)
Other versions
EP4325024A2 (en
Inventor
Jeremy Barker
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.)
Murphy Ladder LLC
Original Assignee
Murphy Ladder LLC
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 US16/219,834 external-priority patent/US20220154530A1/en
Application filed by Murphy Ladder LLC filed Critical Murphy Ladder LLC
Publication of EP4325024A2 publication Critical patent/EP4325024A2/en
Publication of EP4325024A3 publication Critical patent/EP4325024A3/en
Pending legal-status Critical Current

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
    • 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
    • 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
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/50—Joints or other connecting parts

Landscapes

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

Abstract

A ladder that is foldable and collapsible. The ladder includes a first side rail and a second side rail that are spaced apart from one another by a plurality of rungs extending between the first and second side rails. The rungs may be pivotably coupled to the first and second side rails. The ladder is foldable between a plurality of configurations and the ladder is collapsible rail-to-rail.
EP24150659.1A 2018-12-13 2019-12-13 Ladder Pending EP4325024A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US16/219,834 US20220154530A1 (en) 2018-12-13 2018-12-13 Step Ladder with Hinged Rungs Operable to Collapse on Multiple Axes
US201962865185P 2019-06-22 2019-06-22
EP19894846.5A EP3894654B1 (en) 2018-12-13 2019-12-13 Ladder
PCT/US2019/066162 WO2020123905A1 (en) 2018-12-13 2019-12-13 Ladder

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP19894846.5A Division EP3894654B1 (en) 2018-12-13 2019-12-13 Ladder

Publications (2)

Publication Number Publication Date
EP4325024A2 EP4325024A2 (en) 2024-02-21
EP4325024A3 true EP4325024A3 (en) 2024-08-14

Family

ID=71077032

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19894846.5A Active EP3894654B1 (en) 2018-12-13 2019-12-13 Ladder
EP24150659.1A Pending EP4325024A3 (en) 2018-12-13 2019-12-13 Ladder

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP19894846.5A Active EP3894654B1 (en) 2018-12-13 2019-12-13 Ladder

Country Status (5)

Country Link
EP (2) EP3894654B1 (en)
CN (2) CN117967182A (en)
CA (1) CA3123005A1 (en)
MX (1) MX2021007027A (en)
WO (1) WO2020123905A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102683585B1 (en) * 2021-10-12 2024-07-09 강순택 Agricultural ladder having two-way harvesting structure

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63192597U (en) * 1987-05-29 1988-12-12
CN101446176A (en) * 2008-12-23 2009-06-03 王万兴 Collapsible ladder

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US295127A (en) * 1884-03-11 miller-
US4182431A (en) 1978-03-13 1980-01-08 Little Giant Industries Inc. Combination extension and step ladder rungs therefor
US4245717A (en) * 1979-08-23 1981-01-20 Soucy Donald P Fire escape ladder
JPS571298U (en) * 1980-06-02 1982-01-06
US4463829A (en) * 1982-02-25 1984-08-07 Ariy Grin Foldable ladder
KR900009116Y1 (en) * 1987-06-04 1990-09-29 유희관 Ladder
DE29703876U1 (en) 1997-03-04 1998-07-02 Krause-Werk GmbH & Co KG, 36304 Alsfeld Extension ladder
US6536558B2 (en) * 2001-02-16 2003-03-25 Harold E. Price Folding ladder
US6886117B2 (en) 2001-11-20 2005-04-26 Hewlett-Packard Development Company, L.P. Field repairable embedded memory in system-on-a-chip
US6857503B2 (en) 2002-02-07 2005-02-22 Tricam Industries, Inc. Convertible ladder
US20060032708A1 (en) * 2002-04-19 2006-02-16 Welsh Graham K Collapsible ladder
NZ540647A (en) 2002-11-11 2008-10-31 Wing Entpr Combination ladders, ladder components and methods of manufacturing same
KR200317046Y1 (en) 2003-02-19 2003-06-25 이상규 Hinge apparatus of ladder
NL1039300C2 (en) * 2012-01-17 2013-07-18 Robert Dartel SHARED COMBINATION OF A UNIVERSAL BASKET WITH A TAPS-RUNNING LADDER C.Q. HOUSEHOLD STAIRS WHICH LAST EXTENDED BY THE SLIDING AND REMOVAL OF THE BORGAS AND CAN BE FITTED LADDER AGAINST A WALL OR OTHERWISE OR WORKED OUT AS HOUSEHOLD STAIR OR OTHERWISE SERVICE.
EP2878760A1 (en) * 2013-11-29 2015-06-03 Teräs-Kari OY Foldable ladder
ES2715757T3 (en) * 2016-06-27 2019-06-06 Otis Elevator Co Folding ladder locking system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63192597U (en) * 1987-05-29 1988-12-12
CN101446176A (en) * 2008-12-23 2009-06-03 王万兴 Collapsible ladder

Also Published As

Publication number Publication date
MX2021007027A (en) 2021-09-30
WO2020123905A1 (en) 2020-06-18
CN113195863B (en) 2024-02-27
EP4325024A2 (en) 2024-02-21
EP3894654B1 (en) 2024-01-24
CN117967182A (en) 2024-05-03
EP3894654A1 (en) 2021-10-20
CN113195863A (en) 2021-07-30
EP3894654A4 (en) 2022-01-19
CA3123005A1 (en) 2020-06-18

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