EP0063628A1 - Einrichtungen zum Herstellen tragbarer, zusammenklappbarer Leitern und zum Verbinden zweier Teile, verwendbar in geschlossener und offener Arbeitsstellung - Google Patents

Einrichtungen zum Herstellen tragbarer, zusammenklappbarer Leitern und zum Verbinden zweier Teile, verwendbar in geschlossener und offener Arbeitsstellung Download PDF

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Publication number
EP0063628A1
EP0063628A1 EP81103214A EP81103214A EP0063628A1 EP 0063628 A1 EP0063628 A1 EP 0063628A1 EP 81103214 A EP81103214 A EP 81103214A EP 81103214 A EP81103214 A EP 81103214A EP 0063628 A1 EP0063628 A1 EP 0063628A1
Authority
EP
European Patent Office
Prior art keywords
closed
sections
arrangements
staircase
coupling
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.)
Withdrawn
Application number
EP81103214A
Other languages
English (en)
French (fr)
Inventor
Rino Talenti
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
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 Individual filed Critical Individual
Priority to EP81103214A priority Critical patent/EP0063628A1/de
Publication of EP0063628A1 publication Critical patent/EP0063628A1/de
Withdrawn legal-status Critical Current

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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
    • E06C1/32—Ladders with a strut which is formed as a ladder and can be secured in line with the ladder
    • 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

Definitions

  • the steps I of the staircase are mounted by means of pivots in the two uprights, each of which results in the form of an external profile 2, aluminum or other suitable material, with internally other two profiles 3, plastic or other suitable material, to which the end of each rung is interposed and mounted by pivots.
  • the assembly is completed by fixing at the two ends of each upright, on the outer profile 2, a terminal plug in order to prevent the inner profiles 3 from coming off.
  • the locking device which can be seen in figg. 4 and 5, consists of a handle 4 which, made of plastic or other suitable material, and mounted with a hinge in the outer profile 2, has two teeth or protrusions 4X which, through the holes provided for this purpose, are pushed to interfere with one of the two interior profiles and thus prevent further slippage in the amount in question.
  • the double staircase included the study of subsequent arrangements such as: a special hinge allowing the use of the two sections in position or green, without compromising their possible use in position closed; a unidirectional automatic stop that would not obstruct the opening, while allowing, during use in the closed position, the gradual lengthening of the staircase; the union with folded staircase, twin or specular uprights of the two sections.
  • I0, II, 12 show one of the said hinges in the position provided for the divarically of the two sections in the open position and, by means of these figures, it can be noted that the two halves 6 and 7 of the hinge, connected by the pivot 8, pose on the ends of the respective uprights, while a rigid arm (6X and 7X) descends therefrom, mounted by a pivot transversely in a support (10 and II) transferred to the profile 2 and held by its protrusions 2Y.
  • the overturned hinge also contributes to keep close the two uprights and this especially when, before one of the two staircases begins to be scrolled, the IIX hanging has not yet happened.
  • the hinges in the lower part (figg. I5 and 16) there are unidirectional devices during use in the closed position and for the couple connection of the two uprights which, however, leave engaged by pivots, in the lower ends 14, the articulated feet I5 which prevent slipping.
  • the latch 17 In the support 16, fixed in the scrollable upright, the latch 17 is housed, as well as a spring constantly pushing it against the fixed upright in which the adjustment holes have been conveniently disposed.
  • the lock does not require direct intervention during the parade; for the return of the deflected section, on the contrary, it is necessary to contrast the spring by acting on the I7X knob of the lock.
  • the support 16 shaped to obtain during the use of the staircase in the closed position, a stapling similar to that which was noted in IIX (figg. 13 and 14) and yet, in order to unite the uprights even in the chariot phase raised (fig. 10), in the upright not scrollable and in correspondence with the support I6 of the lock, a support 18 has been fixed with a hook 19 mounted on a pivot to be actuated by hand to hook the support I6.

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  • Ladders (AREA)
EP81103214A 1981-04-29 1981-04-29 Einrichtungen zum Herstellen tragbarer, zusammenklappbarer Leitern und zum Verbinden zweier Teile, verwendbar in geschlossener und offener Arbeitsstellung Withdrawn EP0063628A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP81103214A EP0063628A1 (de) 1981-04-29 1981-04-29 Einrichtungen zum Herstellen tragbarer, zusammenklappbarer Leitern und zum Verbinden zweier Teile, verwendbar in geschlossener und offener Arbeitsstellung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP81103214A EP0063628A1 (de) 1981-04-29 1981-04-29 Einrichtungen zum Herstellen tragbarer, zusammenklappbarer Leitern und zum Verbinden zweier Teile, verwendbar in geschlossener und offener Arbeitsstellung

Publications (1)

Publication Number Publication Date
EP0063628A1 true EP0063628A1 (de) 1982-11-03

Family

ID=8187682

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81103214A Withdrawn EP0063628A1 (de) 1981-04-29 1981-04-29 Einrichtungen zum Herstellen tragbarer, zusammenklappbarer Leitern und zum Verbinden zweier Teile, verwendbar in geschlossener und offener Arbeitsstellung

Country Status (1)

Country Link
EP (1) EP0063628A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2152125A (en) * 1983-12-23 1985-07-31 Alinco Inc Foldable ladder

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3269485A (en) * 1964-10-21 1966-08-30 Clayton E Larson Convertible ladder
GB1371237A (en) * 1972-04-27 1974-10-23 Samways A H Samways Sons A Folding ladders
DE2649430A1 (de) * 1976-02-05 1977-08-11 Kosei Kigyo Co Leiter
FR2401306A1 (fr) * 1974-03-14 1979-03-23 Hickman Designs Ltd Structure d'echelle pliante portable

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3269485A (en) * 1964-10-21 1966-08-30 Clayton E Larson Convertible ladder
GB1371237A (en) * 1972-04-27 1974-10-23 Samways A H Samways Sons A Folding ladders
FR2401306A1 (fr) * 1974-03-14 1979-03-23 Hickman Designs Ltd Structure d'echelle pliante portable
DE2649430A1 (de) * 1976-02-05 1977-08-11 Kosei Kigyo Co Leiter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2152125A (en) * 1983-12-23 1985-07-31 Alinco Inc Foldable ladder

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): AT DE FR GB

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19831012