EP3613936A4 - Ladder post locking device for extension ladder - Google Patents

Ladder post locking device for extension ladder Download PDF

Info

Publication number
EP3613936A4
EP3613936A4 EP17906531.3A EP17906531A EP3613936A4 EP 3613936 A4 EP3613936 A4 EP 3613936A4 EP 17906531 A EP17906531 A EP 17906531A EP 3613936 A4 EP3613936 A4 EP 3613936A4
Authority
EP
European Patent Office
Prior art keywords
ladder
locking device
post locking
extension
extension 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
EP17906531.3A
Other languages
German (de)
French (fr)
Other versions
EP3613936B1 (en
EP3613936A1 (en
Inventor
Zhao Zhang
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.)
Dongguan Prestige Sporting Products Co Ltd
Original Assignee
Dongguan Prestige Sporting Products 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 Dongguan Prestige Sporting Products Co Ltd filed Critical Dongguan Prestige Sporting Products Co Ltd
Publication of EP3613936A1 publication Critical patent/EP3613936A1/en
Publication of EP3613936A4 publication Critical patent/EP3613936A4/en
Application granted granted Critical
Publication of EP3613936B1 publication Critical patent/EP3613936B1/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
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/06—Securing devices or hooks for parts of extensible 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
    • E06C1/04—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
    • E06C7/003—Indicating devices, e.g. user warnings or inclinators
EP17906531.3A 2017-04-20 2017-08-01 Ladder post locking device for extension ladder Active EP3613936B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201720422027.9U CN206769793U (en) 2017-04-20 2017-04-20 The cleat stanchion locking device of extension ladder
PCT/CN2017/095417 WO2018192139A1 (en) 2017-04-20 2017-08-01 Ladder post locking device for extension ladder

Publications (3)

Publication Number Publication Date
EP3613936A1 EP3613936A1 (en) 2020-02-26
EP3613936A4 true EP3613936A4 (en) 2021-01-20
EP3613936B1 EP3613936B1 (en) 2022-03-30

Family

ID=60634525

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17906531.3A Active EP3613936B1 (en) 2017-04-20 2017-08-01 Ladder post locking device for extension ladder

Country Status (5)

Country Link
EP (1) EP3613936B1 (en)
CN (1) CN206769793U (en)
DK (1) DK3613936T3 (en)
GB (1) GB2576279B (en)
WO (1) WO2018192139A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202125240U (en) * 2011-04-15 2012-01-25 应筱萍 Locking structure of extension ladder
CN102465662A (en) * 2010-10-29 2012-05-23 阿禄因康株式会社 Telescoping ladder
DE202012104992U1 (en) * 2012-12-20 2013-01-15 Xiaoling Chen telescopic ladder

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US473061A (en) * 1892-04-19 Setts
US4673061A (en) * 1986-08-13 1987-06-16 Zeiset A Leon Automatic ladder leveling apparatus
JP2000027426A (en) * 1998-07-14 2000-01-25 Nippon Light Metal Co Ltd Expansion leg with lock visual confirming mechanism
JP3172713B2 (en) * 1998-08-10 2001-06-04 勝 森野 Telescopic body
SE523253C2 (en) * 2001-06-13 2004-04-06 Telesteps Ab Foldable ladder
JP2003081178A (en) * 2001-09-12 2003-03-19 Masaru Morino Extensive ladder for ship

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102465662A (en) * 2010-10-29 2012-05-23 阿禄因康株式会社 Telescoping ladder
CN202125240U (en) * 2011-04-15 2012-01-25 应筱萍 Locking structure of extension ladder
DE202012104992U1 (en) * 2012-12-20 2013-01-15 Xiaoling Chen telescopic ladder

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2018192139A1 *

Also Published As

Publication number Publication date
DK3613936T3 (en) 2022-04-25
GB201916437D0 (en) 2019-12-25
CN206769793U (en) 2017-12-19
GB2576279B (en) 2022-03-09
GB2576279A (en) 2020-02-12
WO2018192139A1 (en) 2018-10-25
EP3613936B1 (en) 2022-03-30
EP3613936A1 (en) 2020-02-26

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