CA1047995A - Echelle - Google Patents

Echelle

Info

Publication number
CA1047995A
CA1047995A CA301,511A CA301511A CA1047995A CA 1047995 A CA1047995 A CA 1047995A CA 301511 A CA301511 A CA 301511A CA 1047995 A CA1047995 A CA 1047995A
Authority
CA
Canada
Prior art keywords
ladder
steps
central member
central
section
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.)
Expired
Application number
CA301,511A
Other languages
English (en)
Inventor
Ronald P. Hickman
Edgar R. Rossell
Derek J. C. Bernard
Brian A. Luff
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.)
Hickman Designs Ltd
Original Assignee
Hickman Designs 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 Hickman Designs Ltd filed Critical Hickman Designs Ltd
Application granted granted Critical
Publication of CA1047995A publication Critical patent/CA1047995A/fr
Expired 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
    • E06C1/3835—Foldable ladders in which the longitudinal members are brought together on folding having collapsible steps comprising a hinge in their central part
    • 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
    • E06C1/20—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as poles
    • 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
    • E06C1/381—Ladders with rungs or treads attached only to one rigid longitudinal member
    • 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
    • E06C7/42—Ladder feet; Supports therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)
CA301,511A 1974-03-14 1978-04-20 Echelle Expired CA1047995A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11457/74A GB1508431A (en) 1974-03-14 1974-03-14 Ladders

Publications (1)

Publication Number Publication Date
CA1047995A true CA1047995A (fr) 1979-02-06

Family

ID=9986614

Family Applications (1)

Application Number Title Priority Date Filing Date
CA301,511A Expired CA1047995A (fr) 1974-03-14 1978-04-20 Echelle

Country Status (4)

Country Link
BE (1) BE826653A (fr)
CA (1) CA1047995A (fr)
GB (1) GB1508431A (fr)
ZA (1) ZA751568B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102268927B (zh) * 2011-06-15 2012-12-26 中国一冶集团有限公司 折叠式架线装置

Also Published As

Publication number Publication date
GB1508431A (en) 1978-04-26
BE826653A (fr) 1975-09-15
ZA751568B (en) 1976-10-27

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