CH539771A - Swivel linkage for a staircase or ladder that can be pivoted to a ceiling opening - Google Patents

Swivel linkage for a staircase or ladder that can be pivoted to a ceiling opening

Info

Publication number
CH539771A
CH539771A CH113272A CH113272A CH539771A CH 539771 A CH539771 A CH 539771A CH 113272 A CH113272 A CH 113272A CH 113272 A CH113272 A CH 113272A CH 539771 A CH539771 A CH 539771A
Authority
CH
Switzerland
Prior art keywords
staircase
ladder
pivoted
ceiling opening
swivel linkage
Prior art date
Application number
CH113272A
Other languages
German (de)
Inventor
Frank Wilhelm
Original Assignee
Frank Gmbh Wilh
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 Frank Gmbh Wilh filed Critical Frank Gmbh Wilh
Publication of CH539771A publication Critical patent/CH539771A/en

Links

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
    • E04F11/062—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible collapsible, e.g. folding, telescopic folding
    • E04F11/064—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible collapsible, e.g. folding, telescopic folding with stringers overlapping when folded

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ladders (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
CH113272A 1971-02-10 1972-01-26 Swivel linkage for a staircase or ladder that can be pivoted to a ceiling opening CH539771A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712106358 DE2106358C3 (en) 1971-02-10 1971-02-10 Closure for a ceiling opening lined with a feed box

Publications (1)

Publication Number Publication Date
CH539771A true CH539771A (en) 1973-07-31

Family

ID=5798395

Family Applications (1)

Application Number Title Priority Date Filing Date
CH113272A CH539771A (en) 1971-02-10 1972-01-26 Swivel linkage for a staircase or ladder that can be pivoted to a ceiling opening

Country Status (11)

Country Link
AT (1) AT318217B (en)
BE (1) BE779219A (en)
CH (1) CH539771A (en)
DE (1) DE2106358C3 (en)
DK (1) DK125930B (en)
FR (1) FR2126843A5 (en)
GB (1) GB1342226A (en)
IT (1) IT947382B (en)
NL (1) NL166750C (en)
SE (1) SE371248B (en)
YU (1) YU35906B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2209180B (en) * 1987-08-28 1991-06-26 Anthony Robert Perry Expandable house
FR2660002B1 (en) * 1990-03-26 1992-06-12 Lavrard Michel HOPPER EQUIPMENT FOR RETRACTABLE ATTIC STAIRS WITH SIDE ARMS.
US5220757A (en) * 1991-10-15 1993-06-22 Colorcraft, Inc. Thermal stairway cover
CN106894750B (en) * 2017-03-16 2019-01-15 武汉轻工大学 Emergency door stairs and application method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1193857A (en) * 1959-11-05
DE936062C (en) * 1953-02-20 1955-12-01 Saegewerk Retractable two-part attic stairs
AT323983B (en) * 1971-08-09 1975-08-11 Wihl Frank Gmbh SUBDIVIDED FLOOR STAIRS

Also Published As

Publication number Publication date
GB1342226A (en) 1974-01-03
NL166750B (en) 1981-04-15
DE2106358C3 (en) 1980-02-07
DK125930B (en) 1973-05-21
YU30172A (en) 1981-02-28
AT318217B (en) 1974-10-10
NL166750C (en) 1981-09-15
YU35906B (en) 1981-08-31
IT947382B (en) 1973-05-21
FR2126843A5 (en) 1972-10-06
NL7201141A (en) 1972-08-14
DE2106358B2 (en) 1979-06-13
SE371248B (en) 1974-11-11
DE2106358A1 (en) 1972-09-14
BE779219A (en) 1972-05-30

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Legal Events

Date Code Title Description
PL Patent ceased