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MX2022009716A - Foldable ladder. - Google Patents

Foldable ladder.

Info

Publication number
MX2022009716A
MX2022009716A MX2022009716A MX2022009716A MX2022009716A MX 2022009716 A MX2022009716 A MX 2022009716A MX 2022009716 A MX2022009716 A MX 2022009716A MX 2022009716 A MX2022009716 A MX 2022009716A MX 2022009716 A MX2022009716 A MX 2022009716A
Authority
MX
Mexico
Prior art keywords
ladder
portions
angle
lock
ladder portion
Prior art date
Application number
MX2022009716A
Other languages
Spanish (es)
Inventor
Mitchell I Kieffer
Allen A Caldwell
Nathan L Schlueter
Original Assignee
Core Distrib Inc
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 US14/558,042 external-priority patent/US9416591B2/en
Priority claimed from US14/557,944 external-priority patent/US9580959B2/en
Application filed by Core Distrib Inc filed Critical Core Distrib Inc
Publication of MX2022009716A publication Critical patent/MX2022009716A/en

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
    • E06C1/32—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
    • E06C1/04—Ladders for resting against objects, e.g. walls poles, trees
    • E06C1/08—Ladders for resting against objects, e.g. walls poles, trees multi-part
    • E06C1/12—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic
    • E06C1/125—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic with tubular longitudinal members nested within each other
    • 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
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/42—Ladder feet; Supports therefor
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/42—Ladder feet; Supports therefor
    • E06C7/423—Ladder stabilising struts
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/42—Ladder feet; Supports therefor
    • E06C7/46—Non-skid equipment

Landscapes

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

Abstract

A foldable ladder has a first ladder portion and a second ladder portion hingedly attached to the first ladder portion by a pair of hinge mechanisms. Each hinge mechanism adapted to lock the first and second ladder portions such that the first ladder portion and the second ladder portion form an angle therebetween. The hinge mechanism has a shifting mechanism and a ladder angle selector coupled thereto to allow manual selection of the angle between the first and second ladder portions, and a locking pin to lock the first and second ladder portions at an angular position.
MX2022009716A 2014-12-02 2017-06-05 Foldable ladder. MX2022009716A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/558,042 US9416591B2 (en) 2014-12-02 2014-12-02 Telescoping ladder with stabilizers
US14/557,944 US9580959B2 (en) 2014-12-02 2014-12-02 Foldable ladder

Publications (1)

Publication Number Publication Date
MX2022009716A true MX2022009716A (en) 2022-09-09

Family

ID=54849735

Family Applications (2)

Application Number Title Priority Date Filing Date
MX2017007137A MX2017007137A (en) 2014-12-02 2015-12-02 Foldable ladder.
MX2022009716A MX2022009716A (en) 2014-12-02 2017-06-05 Foldable ladder.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
MX2017007137A MX2017007137A (en) 2014-12-02 2015-12-02 Foldable ladder.

Country Status (6)

Country Link
EP (2) EP4273362A3 (en)
CN (2) CN107250479B (en)
CA (2) CA3130716C (en)
ES (1) ES2963810T3 (en)
MX (2) MX2017007137A (en)
WO (1) WO2016090041A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD855833S1 (en) 2017-01-04 2019-08-06 Tricam Industries, Inc. Ladder rail
USD860476S1 (en) 2017-01-04 2019-09-17 Tricam Industries, Inc. Hinge for a multi-position ladder
CN108508804B (en) * 2018-04-18 2019-11-26 陈禄壮 Ladder management system based on cadence triggering
CA3155483A1 (en) * 2019-09-18 2021-03-25 Werner Co Step ladder pivot and lock mechanism
US20210222492A1 (en) * 2020-01-20 2021-07-22 Little Giant Ladder Systems, Llc Ladders and ladder rungs

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2827216A (en) * 1955-05-25 1958-03-18 Leonard B Napolitano Telescopic step or rung ladders
US4182431A (en) * 1978-03-13 1980-01-08 Little Giant Industries Inc. Combination extension and step ladder rungs therefor
BE1004040A6 (en) * 1989-06-16 1992-09-15 Show Min Liaw Stretch scale multi-purpose.
CN2122928U (en) * 1992-06-04 1992-11-25 士元工业股份有限公司 Positioning joint for foldable aluminium ladder
US5954157A (en) * 1994-10-18 1999-09-21 Fiberlite Technologies, Inc. Fiber/resin composite ladder and accompanying accessories
US5775460A (en) * 1995-02-02 1998-07-07 Stone; Mark James Hinge and ladder
KR100199416B1 (en) * 1995-08-21 1999-06-15 Song In Kweon Hinge for collapsible ladder
US6857503B2 (en) * 2002-02-07 2005-02-22 Tricam Industries, Inc. Convertible ladder
DE20207715U1 (en) * 2002-05-16 2003-09-25 Portuleiter - Produtos Metalicos, Limitada, Foros de Salvaterra Extending safety ladder has the telescopic ladder sections fitted with a protected mounting catch which prevents the ladder sections separating
US7424933B2 (en) * 2002-05-28 2008-09-16 Norman Miller Ladder assemblies
US6708800B2 (en) 2002-08-02 2004-03-23 Core Distribution, Inc. Extending ladder and associated manufacturing methods
WO2004044365A2 (en) * 2002-11-11 2004-05-27 Wing Enterprises Combination ladders, ladder components and methods of manufacturing same
US7140072B2 (en) * 2003-11-11 2006-11-28 Cosco Management, Inc. Lockable ladder hinge
WO2005045172A1 (en) * 2003-11-11 2005-05-19 Luhao Leng A locating hinge for folding ladder
CN2660084Y (en) * 2003-11-11 2004-12-01 冷鹭浩 Position hinge structure of folding ladder
US8387753B2 (en) * 2006-06-30 2013-03-05 Core Distribution, Inc. Ergonomic extendable/retractable ladder
US7316293B2 (en) * 2006-05-17 2008-01-08 Norman William Liefke Extension ladder with improved mechanism
CN201100093Y (en) * 2007-10-11 2008-08-13 王万兴 Dual-purpose telescopic ladder
CN101918671B (en) * 2007-11-02 2012-11-07 兰普控股私人有限公司 Telescopic ladder assembly
JP2010024799A (en) * 2008-07-24 2010-02-04 Bunka Shutter Co Ltd Deployment preventing structure for retractable ladder
US8225906B2 (en) * 2008-08-22 2012-07-24 Core Distribution, Inc. Extendable/retractable ladder
US20100071996A1 (en) * 2008-09-24 2010-03-25 Wen-Hung Huang Collapsible platform ladder
GB2503742B (en) * 2012-07-06 2014-09-03 Teletower Com Ltd Collapsible ladder

Also Published As

Publication number Publication date
ES2963810T3 (en) 2024-04-02
EP3227517B1 (en) 2023-09-27
CA2968554C (en) 2022-05-24
EP4273362A3 (en) 2024-01-10
CN112459698B (en) 2022-01-11
MX2017007137A (en) 2017-08-18
CA3130716C (en) 2023-09-26
CN107250479B (en) 2020-11-13
WO2016090041A1 (en) 2016-06-09
CN107250479A (en) 2017-10-13
CN112459698A (en) 2021-03-09
EP3227517A1 (en) 2017-10-11
CA3130716A1 (en) 2016-06-09
EP4273362A2 (en) 2023-11-08
CA2968554A1 (en) 2016-06-09
EP3227517C0 (en) 2023-09-27

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