GB2261248B - A ladder structure - Google Patents

A ladder structure

Info

Publication number
GB2261248B
GB2261248B GB9122898A GB9122898A GB2261248B GB 2261248 B GB2261248 B GB 2261248B GB 9122898 A GB9122898 A GB 9122898A GB 9122898 A GB9122898 A GB 9122898A GB 2261248 B GB2261248 B GB 2261248B
Authority
GB
United Kingdom
Prior art keywords
ladder structure
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.)
Expired - Fee Related
Application number
GB9122898A
Other versions
GB2261248A (en
GB9122898D0 (en
Inventor
David P Oliver
Mark Redsell
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.)
Abru Aluminium Ltd
Original Assignee
Abru Aluminium 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 Abru Aluminium Ltd filed Critical Abru Aluminium Ltd
Priority to GB9122898A priority Critical patent/GB2261248B/en
Publication of GB9122898D0 publication Critical patent/GB9122898D0/en
Priority to EP92309905A priority patent/EP0540325B1/en
Priority to DE1992616208 priority patent/DE69216208T2/en
Publication of GB2261248A publication Critical patent/GB2261248A/en
Application granted granted Critical
Publication of GB2261248B publication Critical patent/GB2261248B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/06—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
    • E04C3/07—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web at least partly of bent or otherwise deformed strip- or sheet-like material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
    • E04C2003/0421—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section comprising one single unitary part
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
    • E04C2003/043—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the hollow cross-section comprising at least one enclosed cavity
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
    • E04C2003/0439—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the cross-section comprising open parts and hollow parts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0452—H- or I-shaped
    • E04C2003/0456—H- or I-shaped hollow flanged, i.e. "dogbone" metal beams
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0465—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section square- or rectangular-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0473—U- or C-shaped

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ladders (AREA)
GB9122898A 1991-10-29 1991-10-29 A ladder structure Expired - Fee Related GB2261248B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB9122898A GB2261248B (en) 1991-10-29 1991-10-29 A ladder structure
EP92309905A EP0540325B1 (en) 1991-10-29 1992-10-29 Ladder
DE1992616208 DE69216208T2 (en) 1991-10-29 1992-10-29 ladder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9122898A GB2261248B (en) 1991-10-29 1991-10-29 A ladder structure

Publications (3)

Publication Number Publication Date
GB9122898D0 GB9122898D0 (en) 1991-12-11
GB2261248A GB2261248A (en) 1993-05-12
GB2261248B true GB2261248B (en) 1996-05-15

Family

ID=10703682

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9122898A Expired - Fee Related GB2261248B (en) 1991-10-29 1991-10-29 A ladder structure

Country Status (3)

Country Link
EP (1) EP0540325B1 (en)
DE (1) DE69216208T2 (en)
GB (1) GB2261248B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA200510240B (en) 2003-06-23 2007-03-28 Smorgon Steel Litesteel Prod An improved beam
FR2893966B1 (en) * 2005-11-30 2009-03-27 Echelles Neressy Soc Par Actio ROOF SCALE.
WO2014208194A1 (en) * 2013-06-24 2014-12-31 株式会社構造材料研究会 Cross sectional corner reinforcing structural member

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB619985A (en) * 1946-10-08 1949-03-17 Thomas Sydney Goosey Improvements in or relating to ladders
GB786240A (en) * 1954-12-31 1957-11-13 Eisen & Stahlind Ag Roadway section for bridges and similar supporting structures
US3327385A (en) * 1963-01-04 1967-06-27 Harsco Corp Method of making ladders
US3342007A (en) * 1964-08-03 1967-09-19 Anthes Imp Ltd Structural member
GB1089761A (en) * 1963-01-29 1967-11-08 Racole Trading & Mfg Company L Improvements relating to ladders
GB1232494A (en) * 1968-11-29 1971-05-19
GB1362021A (en) * 1970-07-04 1974-07-30 Ruschitzka F Stepladders
GB1377518A (en) * 1970-12-22 1974-12-18 Grillo Werke Ag Continuous production of fibre-reinforced shaped bodies
EP0017486A1 (en) * 1979-04-05 1980-10-15 William Bailey Method of and apparatus for forming a joint between a step and a stile of a ladder
GB2118237A (en) * 1982-04-15 1983-10-26 Lennart Holgersson Ladder
EP0267843A1 (en) * 1986-10-29 1988-05-18 Feralco S.A. Load-bearing rail section, particularly for storage racks
GB2247033A (en) * 1990-08-03 1992-02-19 Ward Building Systems Ltd Elongate cold-formed structural member, e.g. a purlin

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2552630A (en) * 1947-08-06 1951-05-15 Henry M Hutchinson Metal ladder
US2855134A (en) * 1956-10-04 1958-10-07 Bauer Mfg Company Metal ladder
DE1132701B (en) * 1957-07-22 1962-07-05 E H Kurt Kloeppel Dr Ing Dr In Welded steel girder of? -Shaped cross-section with hollow flanges
FR2044176A5 (en) * 1969-05-12 1971-02-19 Daucourt Pierre
FR2369411A1 (en) * 1976-10-26 1978-05-26 Mullca Sectional ladder construction with standard hollow section rungs - has rungs pulled into and wedged in openings in longeron of standard section by axial bolts
DE7704088U1 (en) * 1977-02-11 1977-05-26 Schneider, Friedrich, 7832 Kenzingen METAL CONDUCTORS, IN PARTICULAR ALUMINUM CONDUCTORS
DE2910617C2 (en) * 1979-03-17 1981-07-16 Hailo-Werk Rudolf Loh Gmbh & Co Kg, 6342 Haiger Ladder with steps and two longitudinal bars

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB619985A (en) * 1946-10-08 1949-03-17 Thomas Sydney Goosey Improvements in or relating to ladders
GB786240A (en) * 1954-12-31 1957-11-13 Eisen & Stahlind Ag Roadway section for bridges and similar supporting structures
US3327385A (en) * 1963-01-04 1967-06-27 Harsco Corp Method of making ladders
GB1089761A (en) * 1963-01-29 1967-11-08 Racole Trading & Mfg Company L Improvements relating to ladders
US3342007A (en) * 1964-08-03 1967-09-19 Anthes Imp Ltd Structural member
GB1232494A (en) * 1968-11-29 1971-05-19
GB1362021A (en) * 1970-07-04 1974-07-30 Ruschitzka F Stepladders
GB1377518A (en) * 1970-12-22 1974-12-18 Grillo Werke Ag Continuous production of fibre-reinforced shaped bodies
EP0017486A1 (en) * 1979-04-05 1980-10-15 William Bailey Method of and apparatus for forming a joint between a step and a stile of a ladder
GB2118237A (en) * 1982-04-15 1983-10-26 Lennart Holgersson Ladder
EP0267843A1 (en) * 1986-10-29 1988-05-18 Feralco S.A. Load-bearing rail section, particularly for storage racks
GB2247033A (en) * 1990-08-03 1992-02-19 Ward Building Systems Ltd Elongate cold-formed structural member, e.g. a purlin

Also Published As

Publication number Publication date
EP0540325A1 (en) 1993-05-05
DE69216208D1 (en) 1997-02-06
GB2261248A (en) 1993-05-12
EP0540325B1 (en) 1996-12-27
GB9122898D0 (en) 1991-12-11
DE69216208T2 (en) 1997-04-17

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20011029