DE58902598D1 - METHOD FOR PRODUCING STAGES FOR STEP LADDERS. - Google Patents

METHOD FOR PRODUCING STAGES FOR STEP LADDERS.

Info

Publication number
DE58902598D1
DE58902598D1 DE8989110085T DE58902598T DE58902598D1 DE 58902598 D1 DE58902598 D1 DE 58902598D1 DE 8989110085 T DE8989110085 T DE 8989110085T DE 58902598 T DE58902598 T DE 58902598T DE 58902598 D1 DE58902598 D1 DE 58902598D1
Authority
DE
Germany
Prior art keywords
side rails
sections
rungs
recesses
producing
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 - Lifetime
Application number
DE8989110085T
Other languages
German (de)
Inventor
Stephan Gerster
Rudolf Pfeifer
Christof Petri
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.)
Hailo Werk Rudolf Loh GmbH and Co KG
Original Assignee
Hailo Werk Rudolf Loh GmbH and Co KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6356244&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE58902598(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hailo Werk Rudolf Loh GmbH and Co KG filed Critical Hailo Werk Rudolf Loh GmbH and Co KG
Application granted granted Critical
Publication of DE58902598D1 publication Critical patent/DE58902598D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)
  • Programmable Controllers (AREA)

Abstract

The invention relates to a method for producing rungs (10) consisting of profile sections and having supporting sections (12), for a step ladder having side rails, the end sections (14, 16) of the rungs which are connectable to the side rails possessing recesses (18, 20) for receiving the side rails. Rungs of the intended length are cut to length from profile members. Recesses (18, 20) for receiving side rails are then formed in the end sections (14, 16) of the rungs. Finally, the end faces (22, 24, 26, 28) of the supporting sections, facing the side rails, are rounded off at the corners and at least the end edges of the supporting sections are shaped to remove the angles. <IMAGE>
DE8989110085T 1988-06-10 1989-06-03 METHOD FOR PRODUCING STAGES FOR STEP LADDERS. Expired - Lifetime DE58902598D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3819724A DE3819724A1 (en) 1988-06-10 1988-06-10 METHOD FOR PRODUCING STAGES FOR STEP LADDERS

Publications (1)

Publication Number Publication Date
DE58902598D1 true DE58902598D1 (en) 1992-12-10

Family

ID=6356244

Family Applications (2)

Application Number Title Priority Date Filing Date
DE3819724A Withdrawn DE3819724A1 (en) 1988-06-10 1988-06-10 METHOD FOR PRODUCING STAGES FOR STEP LADDERS
DE8989110085T Expired - Lifetime DE58902598D1 (en) 1988-06-10 1989-06-03 METHOD FOR PRODUCING STAGES FOR STEP LADDERS.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE3819724A Withdrawn DE3819724A1 (en) 1988-06-10 1988-06-10 METHOD FOR PRODUCING STAGES FOR STEP LADDERS

Country Status (3)

Country Link
EP (1) EP0345676B1 (en)
AT (1) ATE82039T1 (en)
DE (2) DE3819724A1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1555483A (en) * 1923-12-12 1925-09-29 Rosenberg Heyman Ladder
US3005513A (en) * 1959-03-25 1961-10-24 White Metal Rolling & Stamping Stepladders and structural components thereof
US3090465A (en) * 1959-11-12 1963-05-21 George L Smith Swimming pool ladder
DE2108554A1 (en) * 1971-02-23 1972-09-14 Ruschitzka, Friedrich, 6921 Zuzen hausen Stepladder, especially for household purposes, with steps made of metal profile parts
DE2140616A1 (en) * 1971-08-13 1973-02-22 Zarges Leichtbau Gmbh LIGHT METAL LADDER
US3991851A (en) * 1973-08-15 1976-11-16 Vinyl-Fab Industries Safety ladder for above-the-ground swimming pools
DE2735592A1 (en) * 1977-08-06 1979-02-15 Friedrich Schneider Step ladder tread mounting - has shaped end clamps with fixing screws in centre channel of tread undersurface
DE3440549A1 (en) * 1984-11-07 1986-05-15 Fahrleitungsbau Gmbh, 4300 Essen RISING PROTECTION LADDER

Also Published As

Publication number Publication date
DE3819724A1 (en) 1989-12-14
EP0345676B1 (en) 1992-11-04
EP0345676A1 (en) 1989-12-13
ATE82039T1 (en) 1992-11-15

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8365 Fully valid after opposition proceedings
8339 Ceased/non-payment of the annual fee