GB861254A - Improvements in and relating to folding stairs - Google Patents

Improvements in and relating to folding stairs

Info

Publication number
GB861254A
GB861254A GB33146/57A GB3314657A GB861254A GB 861254 A GB861254 A GB 861254A GB 33146/57 A GB33146/57 A GB 33146/57A GB 3314657 A GB3314657 A GB 3314657A GB 861254 A GB861254 A GB 861254A
Authority
GB
United Kingdom
Prior art keywords
trap door
ladder
trap
oct
pivoted
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
GB33146/57A
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 GB861254A publication Critical patent/GB861254A/en
Expired legal-status Critical Current

Links

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
    • E06C1/54—Ladders in general with non-rigid longitudinal members of the lazy-tongs type
    • 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
    • E04F11/066—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible collapsible, e.g. folding, telescopic folding folding like scissors or accordions

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Steps, Ramps, And Handrails (AREA)
  • Ladders (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)

Abstract

861,254. Ladders. WAGNER, J. Oct. 23, 1957 [Oct. 23, 1956], No. 33146/57. Class 20(2) A folding trap door ladder comprises steps 3 joining lazy tong sides 1 each pivoted to the trap door 9 by a lever 7 to which is pivoted a tension spring 5 secured at its other end to a fixed standard 6. As the trap door 9 is closed, the ladder contracts under tension of the springs 5 acting on the levers 7 which pivot on the trap door 9 to face the hinge 12 of the trap and lock the ladder. The trap door is then secured by a bolt 17. During contraction, rollers 15 move over the upper side of the trap door 9. The lazy tongs 1 comprise aluminium I sections and have rubber floor buffers 13. Springs 5 in telescopic tubes securable to different heights of the standard 6 are described.
GB33146/57A 1956-10-23 1957-10-23 Improvements in and relating to folding stairs Expired GB861254A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW19960A DE1136091B (en) 1956-10-23 1956-10-23 Retractable attic stairs with articulated scissors

Publications (1)

Publication Number Publication Date
GB861254A true GB861254A (en) 1961-02-15

Family

ID=7596647

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33146/57A Expired GB861254A (en) 1956-10-23 1957-10-23 Improvements in and relating to folding stairs

Country Status (4)

Country Link
AT (1) AT211529B (en)
CH (1) CH360193A (en)
DE (1) DE1136091B (en)
GB (1) GB861254A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS524700A (en) * 1976-02-27 1977-01-13 Naka Tech Lab Escape device from building installed in a room or on a verandah
JPS52112198U (en) * 1976-02-20 1977-08-25
JPS52128696A (en) * 1976-04-22 1977-10-28 Naka Tech Lab Building escaping device
JPS52128695A (en) * 1976-04-22 1977-10-28 Naka Tech Lab Building escaping device
JPS53159199U (en) * 1977-05-20 1978-12-13
JPS5472331U (en) * 1977-10-31 1979-05-23
CN108868577A (en) * 2018-07-27 2018-11-23 思百危实业（上海）有限公司 A kind of foldable shield cage steel ladder of essential safety
CN112600079A (en) * 2020-12-01 2021-04-02 中国电建集团江西省电力设计院有限公司 Sail type combined outgoing line framework
CN113978738A (en) * 2021-12-24 2022-01-28 大同航源众诚动力科技有限公司 Escape slide structure applied to passenger compartment door of civil aircraft

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1260755B (en) * 1964-05-20 1968-02-08 Hesselkamp & Co Extendable stairs with scissor cheeks
DE19748236C2 (en) * 1997-10-31 2002-04-18 Columbus Treppen Gmbh attic stairs
PL227158B1 (en) * 2011-01-11 2017-11-30 Fakro Pp Spółka Z Ograniczoną Odpowiedzialnością Unit for closing the ceiling opening with the folding stairs
CN108678053A (en) * 2018-05-17 2018-10-19 成都市容德建筑劳务有限公司 Earth scraper with function of breaking ground

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR368262A (en) * 1906-07-21 1906-11-23 Thomas Marcus Houghton articulated ladder, combined with a hatch to make it play
US2050593A (en) * 1933-07-13 1936-08-11 Higgin Mfg Co Collapsible stairway
CH198072A (en) * 1936-12-03 1938-06-15 F & C Marazzi Folding staircase.
US2572281A (en) * 1949-07-15 1951-10-23 Ernest E Pierce Folding stairs

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52112198U (en) * 1976-02-20 1977-08-25
JPS524700A (en) * 1976-02-27 1977-01-13 Naka Tech Lab Escape device from building installed in a room or on a verandah
JPS5755869B2 (en) * 1976-02-27 1982-11-26
JPS52128695A (en) * 1976-04-22 1977-10-28 Naka Tech Lab Building escaping device
JPS5716231B2 (en) * 1976-04-22 1982-04-03
JPS5716230B2 (en) * 1976-04-22 1982-04-03
JPS52128696A (en) * 1976-04-22 1977-10-28 Naka Tech Lab Building escaping device
JPS53159199U (en) * 1977-05-20 1978-12-13
JPS5715999Y2 (en) * 1977-05-20 1982-04-02
JPS5472331U (en) * 1977-10-31 1979-05-23
JPS59480Y2 (en) * 1977-10-31 1984-01-07 松下電工株式会社 foldable storage ladder
CN108868577A (en) * 2018-07-27 2018-11-23 思百危实业（上海）有限公司 A kind of foldable shield cage steel ladder of essential safety
CN112600079A (en) * 2020-12-01 2021-04-02 中国电建集团江西省电力设计院有限公司 Sail type combined outgoing line framework
CN113978738A (en) * 2021-12-24 2022-01-28 大同航源众诚动力科技有限公司 Escape slide structure applied to passenger compartment door of civil aircraft

Also Published As

Publication number Publication date
DE1136091B (en) 1962-09-06
CH360193A (en) 1962-02-15
AT211529B (en) 1960-10-25

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