EP0057040A2 - Zusammenfaltbare Leiter - Google Patents

Zusammenfaltbare Leiter Download PDF

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Publication number
EP0057040A2
EP0057040A2 EP82200073A EP82200073A EP0057040A2 EP 0057040 A2 EP0057040 A2 EP 0057040A2 EP 82200073 A EP82200073 A EP 82200073A EP 82200073 A EP82200073 A EP 82200073A EP 0057040 A2 EP0057040 A2 EP 0057040A2
Authority
EP
European Patent Office
Prior art keywords
module
ladder
modules
arms
aligned
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.)
Ceased
Application number
EP82200073A
Other languages
English (en)
French (fr)
Other versions
EP0057040A3 (de
Inventor
Salvador Alimbau Marques
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
Publication of EP0057040A2 publication Critical patent/EP0057040A2/de
Publication of EP0057040A3 publication Critical patent/EP0057040A3/de
Ceased 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
    • E06C1/52—Ladders in general with non-rigid longitudinal members

Definitions

  • This invention refers to a new fold-up ladder.
  • the fold-up ladders presently known on the market consist of sections of several treads which are almost of the same length as that of the main" strut of the portable ladder itself, to which it backs. These addition sections are linked by clamps to the couple of main struts between which the treads are placed.
  • both designs show the drawback of the difficulty of handling of collapsible ladders, as well as that of their weightness and that of requiring too much space when not in use, specially if they have to be carried from one working site to another, as they usually do not fit into small cars.
  • the subject of the present invention has been designed, thanks to which the ladder consists of as many different sections as treads compose it, being hinged one to that immediately following it upwards in dimensions, all of them being inscribed in the lowermost tread or section of dimensions greater than all the remaining components of the ladder.
  • the same consists of a multiplicity of tread sections inscribed the ones inside the others, the whole constituting an assembly easy to taking on shoulders by passing the arm through the central orifice in the same manner as a roll of rope is borne.
  • FIG. 1 shows diagrammatically a ladder built in accordance with the invention, unfolded so that every section is aligned with respect to the foregoing one, being fixed through the corresponding rectractable securing fasteners, whilst figure 2 shows the same ladder, after having capsized its sections and folded them down completely, being carried by the user on his shoulder.
  • the invention consists in the ladder being made up of a multiplicity of "U"-shaped modules, showing the shape of a rectangular frame lacking of one of the smaller sides (2), each of which frames has its two arms hinged in (3) to both arms of the following smaller module, for wwhich reason, in the folded position, every module (1) of the ladder is inscribed inside the frame of the foregoing one, except the largest (lA) corresponding to one end of the ladder, and by swinging them, the modules (1) become alternatively placed in such a position with respect the ones the others that the ends of the arms of one group of modules face the ends of the arms of the other group of modules, all them becoming placed in the same plane, out of which they are taken at the user's will by pulling the last smallest module (lB) upwards, so that the assembly of modules (2) advances up to a certain limit, after which every module (1) is swung around itself for 180° with reference to the former, so that all the modules (1) become aligned to each other, by keying elements (4) arranged on each module so that in

Landscapes

  • Ladders (AREA)
  • Valve Device For Special Equipments (AREA)
  • Fluid-Damping Devices (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
EP82200073A 1981-01-26 1982-01-21 Zusammenfaltbare Leiter Ceased EP0057040A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES1981256261U ES256261Y (es) 1981-01-26 1981-01-26 Nueva escalera plegable
ES256261U 1981-01-28

Publications (2)

Publication Number Publication Date
EP0057040A2 true EP0057040A2 (de) 1982-08-04
EP0057040A3 EP0057040A3 (de) 1983-06-08

Family

ID=8413280

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82200073A Ceased EP0057040A3 (de) 1981-01-26 1982-01-21 Zusammenfaltbare Leiter

Country Status (7)

Country Link
EP (1) EP0057040A3 (de)
AU (1) AU567802B2 (de)
DK (1) DK34382A (de)
EG (1) EG15065A (de)
ES (1) ES256261Y (de)
FI (1) FI65305C (de)
NO (1) NO820246L (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0125338A2 (de) * 1983-05-06 1984-11-21 Salvador Alimbau Marques Leiter aus mehreren Modulen
EP0135757A2 (de) * 1983-09-29 1985-04-03 Andral Corporation Arbeitsbühne und Werkbank
EP0135666A2 (de) * 1983-09-29 1985-04-03 Andral Corporation Umwandelbare zusammenlegbare Leiter
EP0158695A2 (de) * 1984-04-16 1985-10-23 Andral Corporation Leiter, Sperreinrichtung für Leitern und Leiterteil
AU567802B2 (en) * 1981-01-26 1987-12-03 Andral Corp. Convertible fold-up ladder
GB2222197A (en) * 1988-08-23 1990-02-28 John Grantly Williams Folding ladder
WO1995008689A1 (es) * 1993-09-24 1995-03-30 Luis Blanco Gris Nueva disposicion de peldaños, aplicable en escaleras desmontables
KR102689312B1 (ko) * 2023-10-10 2024-08-05 대한민국 항포구용 인명구조 사다리

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE58388C (de) * E. L. RIPP in Schönau b. Chemnitz Kettenleiter
US1644739A (en) * 1926-05-22 1927-10-11 Charles C Mccracken Emergency ladder
AU498321B2 (en) * 1975-04-10 1979-03-01 Salter, A.J. Folding, ladder

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB433724A (en) * 1934-02-20 1935-08-20 Frederick Hugh William Whiting Improvements in or relating to folding ladders
US2529112A (en) * 1947-07-26 1950-11-07 Marshall F Crouch Window mounted collapsible fire escape
ES256261Y (es) * 1981-01-26 1982-06-01 Nueva escalera plegable

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE58388C (de) * E. L. RIPP in Schönau b. Chemnitz Kettenleiter
US1644739A (en) * 1926-05-22 1927-10-11 Charles C Mccracken Emergency ladder
AU498321B2 (en) * 1975-04-10 1979-03-01 Salter, A.J. Folding, ladder

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU567802B2 (en) * 1981-01-26 1987-12-03 Andral Corp. Convertible fold-up ladder
EP0125338A2 (de) * 1983-05-06 1984-11-21 Salvador Alimbau Marques Leiter aus mehreren Modulen
EP0125338A3 (de) * 1983-05-06 1986-02-19 Salvador Alimbau Marques Leiter aus mehreren Modulen
EP0135757A2 (de) * 1983-09-29 1985-04-03 Andral Corporation Arbeitsbühne und Werkbank
EP0135666A2 (de) * 1983-09-29 1985-04-03 Andral Corporation Umwandelbare zusammenlegbare Leiter
EP0135757A3 (de) * 1983-09-29 1986-02-12 Andral Corporation Arbeitsbühne und Werkbank
EP0135666A3 (en) * 1983-09-29 1986-02-12 Andral Corporation Convertible fold-up ladder
EP0158695A2 (de) * 1984-04-16 1985-10-23 Andral Corporation Leiter, Sperreinrichtung für Leitern und Leiterteil
EP0158695A3 (de) * 1984-04-16 1986-02-12 Andral Corporation Leiter, Sperreinrichtung für Leitern und Leiterteil
GB2222197A (en) * 1988-08-23 1990-02-28 John Grantly Williams Folding ladder
WO1995008689A1 (es) * 1993-09-24 1995-03-30 Luis Blanco Gris Nueva disposicion de peldaños, aplicable en escaleras desmontables
KR102689312B1 (ko) * 2023-10-10 2024-08-05 대한민국 항포구용 인명구조 사다리

Also Published As

Publication number Publication date
FI65305C (fi) 1984-04-10
ES256261Y (es) 1982-06-01
DK34382A (da) 1982-07-29
FI820220L (fi) 1982-07-29
EP0057040A3 (de) 1983-06-08
AU567802B2 (en) 1987-12-03
NO820246L (no) 1982-07-29
AU4037185A (en) 1986-10-02
EG15065A (en) 1985-12-31
ES256261U (es) 1981-12-16
FI65305B (fi) 1983-12-30

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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 BE CH DE FR GB IT LU NL SE

PUAL Search report despatched

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Effective date: 19831121

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18R Application refused

Effective date: 19851210