ATE104402T1 - EXTENDING LADDER. - Google Patents

EXTENDING LADDER.

Info

Publication number
ATE104402T1
ATE104402T1 AT90907530T AT90907530T ATE104402T1 AT E104402 T1 ATE104402 T1 AT E104402T1 AT 90907530 T AT90907530 T AT 90907530T AT 90907530 T AT90907530 T AT 90907530T AT E104402 T1 ATE104402 T1 AT E104402T1
Authority
AT
Austria
Prior art keywords
line
ladders
ladder
adjacent
another
Prior art date
Application number
AT90907530T
Other languages
German (de)
Inventor
Hans Heggen
Original Assignee
Wibe Ab
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 Wibe Ab filed Critical Wibe Ab
Application granted granted Critical
Publication of ATE104402T1 publication Critical patent/ATE104402T1/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
    • E06C1/04—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

Landscapes

  • Ladders (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Dental Preparations (AREA)
  • Paints Or Removers (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Valve Device For Special Equipments (AREA)
  • Programmable Controllers (AREA)

Abstract

An extension ladder comprising at least two separate single ladders (10, 20, 30, 40) which in their starting position lie upon one another and are slidable in relation to one another is shown. One of the two adjacent ladders comprises guide means for the other. Between each adjacent single ladder there is arranged a line pull system comprising line guides (1, 1'; 2, 2'; 3, 3'; 4) over which the line (7) runs and changes direction. Such a line pull system is independently arranged between two adjacent single ladders, so that a four-part extension ladder has three independent line pull systems.
AT90907530T 1989-05-16 1990-05-16 EXTENDING LADDER. ATE104402T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO891964A NO167473C (en) 1989-05-16 1989-05-16 LIFT LADDER
PCT/NO1990/000082 WO1990014491A1 (en) 1989-05-16 1990-05-16 Extension ladder

Publications (1)

Publication Number Publication Date
ATE104402T1 true ATE104402T1 (en) 1994-04-15

Family

ID=19892022

Family Applications (1)

Application Number Title Priority Date Filing Date
AT90907530T ATE104402T1 (en) 1989-05-16 1990-05-16 EXTENDING LADDER.

Country Status (9)

Country Link
EP (1) EP0479797B1 (en)
JP (1) JPH04505354A (en)
AT (1) ATE104402T1 (en)
AU (1) AU5650790A (en)
DE (1) DE69008177T2 (en)
DK (1) DK0479797T3 (en)
FI (1) FI915377A0 (en)
NO (1) NO167473C (en)
WO (1) WO1990014491A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104234615A (en) * 2013-06-10 2014-12-24 镇江跃进机械厂有限公司 Anti-lateral-fall safety ladder
JP6262601B2 (en) * 2014-05-30 2018-01-17 紀美代 中尾 Triple telescopic ladder
CN105888525A (en) * 2016-06-12 2016-08-24 吴江市三达五金工具厂 Combined ladder achieving convenient storage
CN110344746A (en) * 2019-04-29 2019-10-18 珠海五八科技有限公司 A kind of convenient and fast extension ladder of operation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3347340A (en) * 1966-01-20 1967-10-17 Werner Co Inc R D Extension ladders
US3402788A (en) * 1967-05-25 1968-09-24 Werner Co Inc R D Extension ladders

Also Published As

Publication number Publication date
WO1990014491A1 (en) 1990-11-29
NO891964L (en) 1990-11-19
EP0479797A1 (en) 1992-04-15
JPH04505354A (en) 1992-09-17
NO167473C (en) 1991-11-06
EP0479797B1 (en) 1994-04-13
FI915377A0 (en) 1991-11-14
NO891964D0 (en) 1989-05-16
DE69008177D1 (en) 1994-05-19
NO167473B (en) 1991-07-29
DE69008177T2 (en) 1994-09-29
DK0479797T3 (en) 1994-08-08
AU5650790A (en) 1990-12-18

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee