DE7301574U - Standing and leaning ladder with riveted rungs - Google Patents

Standing and leaning ladder with riveted rungs

Info

Publication number
DE7301574U
DE7301574U DE7301574U DE7301574DU DE7301574U DE 7301574 U DE7301574 U DE 7301574U DE 7301574 U DE7301574 U DE 7301574U DE 7301574D U DE7301574D U DE 7301574DU DE 7301574 U DE7301574 U DE 7301574U
Authority
DE
Germany
Prior art keywords
rungs
riveted
profiles
web
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
Application number
DE7301574U
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
Publication date
Publication of DE7301574U publication Critical patent/DE7301574U/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • E06C7/08Special construction of longitudinal members, or rungs or other treads
    • E06C7/082Connections between rungs or treads and longitudinal members
    • E06C7/084Rungs comprising projecting tabs or flanges

Landscapes

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

Claims (1)

Hans Missen, 24 Lubqefc : .. , .,Hans Missen, 24 Lubqefc: ..,., Rotöscherstr.53 Lü"beck, den 16. Januar 1973 ARotöscherstr. 53 Lübeck, January 16, 1973 A An dasTo the Deutsche Patentamt,German Patent Office, 8 München 28 Munich 2 Zwe ibrückenstr.12Zwe ibrückenstr. 12 Betr.: "Steh- und Anlegeleiter mit eingenieteten Sprossen"Re: "Standing and leaning ladder with riveted rungs" (G 73 015 74.4)
Beschreibung:
(G 73 015 74.4)
Description :
Die durch den Steg des Holmprofiles (Bild 1) geführten Ecken der an ihren Enden ausgeklinkten Rohrsprossen (Bild 2) werden von außen vernietet und geben den Leitersprossen einen sehr festen Sitz in den Eolmprofilen -seien es nun Doppel-T-Profile, U-Profile oder Rechteckrohrprofile etc.The corners of the tubular rungs, which are notched at their ends, are riveted from the outside through the web of the stile profile (Fig. 1) and give the ladder rungs a very firm fit in the Eolm profiles - they are now double-T profiles, U-profiles or rectangular tube profiles etc. Dadurch, daß ici Profilsteg keine Durchbrüche zur Aufnahme des ganzen SprossenquerSchnitts erforderlich sind -wie z.B. beim Einbördeln der Sprossen- sondern nur verhältnismäßig kleine ilinschnit j?ür die Aufnahme der Ecken der Rohrsprossen, werden die tragenden Holme weniger geschwächt. Außerdem bilden die ausgeklinkten Sprossenenden von innen ein/ festes T7iderlager gegen den Profilsteg· Das ermöglicht eine feste Vernietung und erhöht die Verwinctungssteifigkeit der Leiter.Because ici profile web has no openings to accommodate the entire rung cross-section are required -as e.g. with Beading of the rungs, but only relatively small ilin cuts For the inclusion of the corners of the tubular rungs, the load-bearing Holme less weakened. In addition, the notched Rung ends from the inside a / fixed T7 support against the profile web This enables a firm riveting and increases the torsional stiffness the head. Schutanspruch: Protection requirement : Die ausgeklinkten Rohrenden der Leitersprossen ( a-b-c-d ) werden durch die Aufnahmelöcher im Steg des Holmprofiles ( a 1, b 1, el, dl ) geführt und von außen vernietet.The notched pipe ends of the ladder rungs (a-b-c-d) are inserted through the mounting holes in the web of the stile profile (a 1, b 1, el, dl) and riveted from the outside.
DE7301574U Standing and leaning ladder with riveted rungs Expired DE7301574U (en)

Publications (1)

Publication Number Publication Date
DE7301574U true DE7301574U (en) 1973-05-10

Family

ID=1288891

Family Applications (1)

Application Number Title Priority Date Filing Date
DE7301574U Expired DE7301574U (en) Standing and leaning ladder with riveted rungs

Country Status (1)

Country Link
DE (1) DE7301574U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0331098A1 (en) * 1988-03-02 1989-09-06 Ulrich Layher Ladder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0331098A1 (en) * 1988-03-02 1989-09-06 Ulrich Layher Ladder
DE3806668A1 (en) * 1988-03-02 1989-09-14 Ulrich Layher LADDER

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