EP0038428A2 - Kopfbeschlag für Leitern und einschiebbare Bodentreppen - Google Patents

Kopfbeschlag für Leitern und einschiebbare Bodentreppen Download PDF

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Publication number
EP0038428A2
EP0038428A2 EP81102149A EP81102149A EP0038428A2 EP 0038428 A2 EP0038428 A2 EP 0038428A2 EP 81102149 A EP81102149 A EP 81102149A EP 81102149 A EP81102149 A EP 81102149A EP 0038428 A2 EP0038428 A2 EP 0038428A2
Authority
EP
European Patent Office
Prior art keywords
ladder
retractable
stairs
attic
staircase
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.)
Granted
Application number
EP81102149A
Other languages
English (en)
French (fr)
Other versions
EP0038428A3 (en
EP0038428B1 (de
Inventor
Michel Lavrard
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.)
Sa Manufacture D'armes Et Cycles De Chatellerault
Original Assignee
Sa Manufacture D'armes Et Cycles De Chatellerault
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 Sa Manufacture D'armes Et Cycles De Chatellerault filed Critical Sa Manufacture D'armes Et Cycles De Chatellerault
Publication of EP0038428A2 publication Critical patent/EP0038428A2/de
Publication of EP0038428A3 publication Critical patent/EP0038428A3/fr
Application granted granted Critical
Publication of EP0038428B1 publication Critical patent/EP0038428B1/de
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E04F11/04—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible
    • E04F11/06—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible collapsible, e.g. folding, telescopic
    • E04F11/068—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible collapsible, e.g. folding, telescopic telescopic

Definitions

  • the object of the present invention relates to an articulated head fitting for a ladder or a retractable attic staircase consisting of two carrying arms articulated at their upper end on two brackets fixed on the upper part of the hatch and at their lower end on two runners on which the upper section of the ladder or retractable attic staircase slides. ;
  • the hinged head fitting for a ladder or retractable attic staircase is composed of two carrying arms (1). These two carrying arms are articulated around an axis (3) threaded at its two ends and resting on two stirrups (2) secured to the joist of the hatch by means of lag screws (16).
  • the free assembly in rotation of the two carrying arms (1) of the axis (3) and the two brackets (2) is obtained by means of two nuts (4) and two spring washers (5) screwed on the two ends threaded on said axis (3).
  • This latter arrangement makes it possible to obtain friction on rotation, offering the possibility of maintaining the carrying arms (1) in the desired position during the handling of the ladder or of the retractable attic staircase.
  • a stop (13) fixed on the end of the upper section of the ladder or of the retractable attic staircase prevents the latter from coming out of the slide (7).
  • a stop (14) adjustable in height on the upper section of the ladder or of the retractable attic staircase limits the travel of said section during folding.
  • a pawl (10) makes it possible to immobilize the upper section of the ladder or of the retractable attic staircase on the slide (7).
  • This ratchet (10) free to rotate pivots under the effect of its own weight around an axis (11) and has a lug (12).
  • FIG. 5 shows a possibility of retracting the ladder or the attic staircase without any overshoot or above the hatch.
  • the user has the possibility of passing from position C, shown in FIG. 4, to position I (FIG. 5) by adjusting the stop (14) accordingly which limits the sliding stroke as desired.
  • FIG. 6 illustrates the process of folding the ladder or the retractable attic staircase on the side opposite the two stirrups (2).
  • the user has the possibility of folding the ladder or the retractable attic staircase from the upper floor according to the following operating mode.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ladders (AREA)
EP81102149A 1980-04-22 1981-03-21 Kopfbeschlag für Leitern und einschiebbare Bodentreppen Expired EP0038428B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8009064A FR2480833A1 (fr) 1980-04-22 1980-04-22 Ferrure de tete articulee pour echelles et escaliers de grenier escamotables
FR8009064 1980-04-22

Publications (3)

Publication Number Publication Date
EP0038428A2 true EP0038428A2 (de) 1981-10-28
EP0038428A3 EP0038428A3 (en) 1982-04-07
EP0038428B1 EP0038428B1 (de) 1984-08-08

Family

ID=9241238

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81102149A Expired EP0038428B1 (de) 1980-04-22 1981-03-21 Kopfbeschlag für Leitern und einschiebbare Bodentreppen

Country Status (3)

Country Link
EP (1) EP0038428B1 (de)
DE (1) DE3165335D1 (de)
FR (1) FR2480833A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2537634A1 (fr) * 1982-12-13 1984-06-15 Rey Henri Escalier escamotable
FR2594874A1 (fr) * 1986-02-21 1987-08-28 Chatellerault Armes Cycles Ferrure de tete articulee et compensee pour escalier de grenier escamotable
GB2256001A (en) * 1991-04-13 1992-11-25 Hugh Percival Knight Loft access arrangement.
CN112127661A (zh) * 2020-08-17 2020-12-25 杭州焱非智能科技有限公司 一种可移动的信息亭

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH259028A (de) * 1947-06-18 1948-12-31 Feldmann Ernst Aufzugtreppenanlage.
GB903608A (en) * 1960-06-11 1962-08-15 John Henry Lawson King Improvements in or relating to extendable ladders
FR1456828A (fr) * 1965-09-13 1966-07-08 Gubri Sa Ets L Perfectionnements apportés aux échelles ou escaliers escamotables par une trappe, notamment par une trappe de grenier
FR1481869A (fr) * 1966-06-03 1967-05-19 Perfectionnements aux escaliers escamotables

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH259028A (de) * 1947-06-18 1948-12-31 Feldmann Ernst Aufzugtreppenanlage.
GB903608A (en) * 1960-06-11 1962-08-15 John Henry Lawson King Improvements in or relating to extendable ladders
FR1456828A (fr) * 1965-09-13 1966-07-08 Gubri Sa Ets L Perfectionnements apportés aux échelles ou escaliers escamotables par une trappe, notamment par une trappe de grenier
FR1481869A (fr) * 1966-06-03 1967-05-19 Perfectionnements aux escaliers escamotables

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2537634A1 (fr) * 1982-12-13 1984-06-15 Rey Henri Escalier escamotable
FR2594874A1 (fr) * 1986-02-21 1987-08-28 Chatellerault Armes Cycles Ferrure de tete articulee et compensee pour escalier de grenier escamotable
GB2256001A (en) * 1991-04-13 1992-11-25 Hugh Percival Knight Loft access arrangement.
GB2256001B (en) * 1991-04-13 1995-02-15 Hugh Percival Knight Improved loft access arrangement
CN112127661A (zh) * 2020-08-17 2020-12-25 杭州焱非智能科技有限公司 一种可移动的信息亭

Also Published As

Publication number Publication date
FR2480833B1 (de) 1983-01-07
EP0038428A3 (en) 1982-04-07
EP0038428B1 (de) 1984-08-08
DE3165335D1 (en) 1984-09-13
FR2480833A1 (fr) 1981-10-23

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