EP2549054A4 - Connecting sleeve for extension ladder - Google Patents

Connecting sleeve for extension ladder

Info

Publication number
EP2549054A4
EP2549054A4 EP10847652.4A EP10847652A EP2549054A4 EP 2549054 A4 EP2549054 A4 EP 2549054A4 EP 10847652 A EP10847652 A EP 10847652A EP 2549054 A4 EP2549054 A4 EP 2549054A4
Authority
EP
European Patent Office
Prior art keywords
connecting sleeve
extension ladder
ladder
extension
sleeve
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
EP10847652.4A
Other languages
German (de)
French (fr)
Other versions
EP2549054B1 (en
EP2549054A1 (en
Inventor
Wanxing Wang
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.)
NINGBO XINGFU TOOLS CO Ltd
Original Assignee
NINGBO XINGFU TOOLS CO Ltd
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 NINGBO XINGFU TOOLS CO Ltd filed Critical NINGBO XINGFU TOOLS CO Ltd
Publication of EP2549054A1 publication Critical patent/EP2549054A1/en
Publication of EP2549054A4 publication Critical patent/EP2549054A4/en
Application granted granted Critical
Publication of EP2549054B1 publication Critical patent/EP2549054B1/en
Not-in-force 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
    • 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
    • E06C7/086—Connections between rungs or treads and longitudinal members with a connecting piece inserted in a hollow rung
    • 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
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/06—Securing devices or hooks for parts of extensible ladders
EP10847652.4A 2010-03-17 2010-06-22 Connecting sleeve for extension ladder Not-in-force EP2549054B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 201010127269 CN101798902B (en) 2010-03-17 2010-03-17 Connecting sleeve for extension ladder
PCT/CN2010/000909 WO2011113183A1 (en) 2010-03-17 2010-06-22 Connecting sleeve for extension ladder

Publications (3)

Publication Number Publication Date
EP2549054A1 EP2549054A1 (en) 2013-01-23
EP2549054A4 true EP2549054A4 (en) 2015-01-07
EP2549054B1 EP2549054B1 (en) 2015-11-04

Family

ID=42594729

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10847652.4A Not-in-force EP2549054B1 (en) 2010-03-17 2010-06-22 Connecting sleeve for extension ladder

Country Status (3)

Country Link
EP (1) EP2549054B1 (en)
CN (1) CN101798902B (en)
WO (1) WO2011113183A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0893371A (en) * 1994-09-20 1996-04-09 Takashi Teramoto Ladder
DE19653003A1 (en) * 1996-12-19 1997-07-03 Giesserei & Montage Gmbh Telescopic safety ladder locked in extended position
JP2007186898A (en) * 2006-01-13 2007-07-26 Alinco Inc Expansion ladder

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2203186B (en) * 1987-03-28 1990-11-28 James Brotherton Stabilizer and tensioner
US6708800B2 (en) * 2002-08-02 2004-03-23 Core Distribution, Inc. Extending ladder and associated manufacturing methods
CN2571986Y (en) * 2002-09-25 2003-09-10 王国华 Telescopic ladder
CN2716479Y (en) 2004-02-06 2005-08-10 王万兴 Extension ladder
CN2804355Y (en) * 2005-06-24 2006-08-09 杨洪建 Telescopic ladder
US7316293B2 (en) * 2006-05-17 2008-01-08 Norman William Liefke Extension ladder with improved mechanism
CN201301661Y (en) * 2008-01-31 2009-09-02 沈孔南 A telescopic ladder
CN201650097U (en) * 2010-03-17 2010-11-24 王万兴 Connecting sleeve for extension ladder

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0893371A (en) * 1994-09-20 1996-04-09 Takashi Teramoto Ladder
DE19653003A1 (en) * 1996-12-19 1997-07-03 Giesserei & Montage Gmbh Telescopic safety ladder locked in extended position
JP2007186898A (en) * 2006-01-13 2007-07-26 Alinco Inc Expansion ladder

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2011113183A1 *

Also Published As

Publication number Publication date
EP2549054B1 (en) 2015-11-04
CN101798902B (en) 2013-02-06
EP2549054A1 (en) 2013-01-23
CN101798902A (en) 2010-08-11
WO2011113183A1 (en) 2011-09-22

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