SE8305670L - ADJUSTABLE STEPS - Google Patents

ADJUSTABLE STEPS

Info

Publication number
SE8305670L
SE8305670L SE8305670A SE8305670A SE8305670L SE 8305670 L SE8305670 L SE 8305670L SE 8305670 A SE8305670 A SE 8305670A SE 8305670 A SE8305670 A SE 8305670A SE 8305670 L SE8305670 L SE 8305670L
Authority
SE
Sweden
Prior art keywords
treads
strings
adjustable
staircase
link
Prior art date
Application number
SE8305670A
Other languages
Swedish (sv)
Other versions
SE8305670D0 (en
Inventor
Ake Nyman
Original Assignee
Ake Nyman
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 Ake Nyman filed Critical Ake Nyman
Priority to SE8305670A priority Critical patent/SE8305670L/en
Publication of SE8305670D0 publication Critical patent/SE8305670D0/en
Priority to AT84903772T priority patent/ATE39376T1/en
Priority to EP84903772A priority patent/EP0160022B1/en
Priority to PCT/SE1984/000335 priority patent/WO1985001769A1/en
Priority to DE8484903772T priority patent/DE3475723D1/en
Priority to AU35030/84A priority patent/AU3503084A/en
Publication of SE8305670L publication Critical patent/SE8305670L/en
Priority to NO852401A priority patent/NO852401L/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
    • E04F11/002—Ramps
    • 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
    • E04F11/022—Stairways; Layouts thereof characterised by the supporting structure
    • E04F11/025—Stairways having stringers
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/002—Ramps
    • E04F2011/005—Ramps collapsible, e.g. folding, telescopic

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Steps, Ramps, And Handrails (AREA)
  • Escalators And Moving Walkways (AREA)
  • Ladders (AREA)
  • Handcart (AREA)

Abstract

A staircase having adjustable treads comprises two strings (11) which are rigidly connected to each other and between which a number of treads (16-19) are provided. Each tread is at its ends pivotally mounted on a bearing shaft (25-28) in the adjacent string and is connected to a link arm (29-32), the link arm being connected to an adjustable link means (33). The link means can be adjusted by means of an operating arm (20) in such a way that the treads are turned around their bearing shafts, maintaining the upper surfaces of the treads in parallel, so that the angle between the upper surfaces of the treads and the longitudinal direction of the strings is changed. The treads (16-19) can also be turned to a common plane, so that the treads form a substantially continuous, plain surface. By adjustment of the treads, the treads can be positioned substantially horizontally irrespective of the inclination of the strings to the ground plane, so that the staircase is comfortable to use. Alternatively, the treads can form a plain surface, so that the straircase can be used as a ramp, e.g. for transport vehicles or wheeled chairs.
SE8305670A 1983-10-14 1983-10-14 ADJUSTABLE STEPS SE8305670L (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE8305670A SE8305670L (en) 1983-10-14 1983-10-14 ADJUSTABLE STEPS
AT84903772T ATE39376T1 (en) 1983-10-14 1984-10-11 ADJUSTABLE STAIRS.
EP84903772A EP0160022B1 (en) 1983-10-14 1984-10-11 Adjustable staircase
PCT/SE1984/000335 WO1985001769A1 (en) 1983-10-14 1984-10-11 Adjustable staircase
DE8484903772T DE3475723D1 (en) 1983-10-14 1984-10-11 Adjustable staircase
AU35030/84A AU3503084A (en) 1983-10-14 1984-10-11 Omstallbar trappa
NO852401A NO852401L (en) 1983-10-14 1985-06-14 ADJUSTABLE STEP

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8305670A SE8305670L (en) 1983-10-14 1983-10-14 ADJUSTABLE STEPS

Publications (2)

Publication Number Publication Date
SE8305670D0 SE8305670D0 (en) 1983-10-14
SE8305670L true SE8305670L (en) 1985-04-15

Family

ID=20352910

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8305670A SE8305670L (en) 1983-10-14 1983-10-14 ADJUSTABLE STEPS

Country Status (6)

Country Link
EP (1) EP0160022B1 (en)
AU (1) AU3503084A (en)
DE (1) DE3475723D1 (en)
NO (1) NO852401L (en)
SE (1) SE8305670L (en)
WO (1) WO1985001769A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU580621B2 (en) * 1983-10-04 1989-01-19 Leon A. Mccoy Device for transporting loads between various elevations
US5634440A (en) * 1995-08-21 1997-06-03 Cindy L. Mayes Convertible step and ramp combination
DE29706983U1 (en) * 1997-04-18 1997-07-31 Trepte, Wolfgang, 01665 Zehren Construction stairs
US7159261B2 (en) * 2004-04-05 2007-01-09 Carrigan Stephen A Convertible dock ramp
US7383600B2 (en) 2005-04-05 2008-06-10 Carrigan Stephen A Convertible dock ramp
GB2427643A (en) * 2005-06-30 2007-01-03 Robert David Black An adjustable stair enabling variation in tread angle
EP1772570B1 (en) * 2005-10-09 2009-04-15 Obrist Baugeräte AG Stairway convertible into a walkway
GB2441321A (en) * 2006-08-31 2008-03-05 Sang Ngoc Nguyen Deployable wheelchair ramp
KR100689065B1 (en) * 2006-12-12 2007-03-02 (주)신성건축사사무소 Stairs structure for handicapped person and infant of building
GB0719064D0 (en) * 2007-09-29 2007-11-07 Potter Tom simple steps
FR3004202B1 (en) * 2013-04-04 2016-04-15 Jean Boquet FOLDABLE AND FOLDING STAIRCASE ON A WALL
CN104176594B (en) * 2014-09-03 2017-02-15 安徽工程大学 Auxiliary stair-climbing device and auxiliary stair-climbing method
CN104563839A (en) * 2015-01-31 2015-04-29 朱建国 Step ladder capable of adjusting height
CN106193477B (en) * 2016-07-14 2018-07-20 天津大学 Wheelchair opens up channel with accessible folding

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1791330A (en) * 1929-07-19 1931-02-03 Elmer A Sprague Combination ladder, skid, and bridge
US2864542A (en) * 1957-10-18 1958-12-16 Alexander C Kidd Combination ladder and chute
US3026961A (en) * 1960-06-16 1962-03-27 James H Leverett Combination ladders and chutes
BE760004A (en) * 1970-12-08 1971-05-17 Manduau Robert EMERGENCY DEVICE - SLIDE PLAN FOR BUILDINGS,
SE373903B (en) * 1972-01-28 1975-02-17 R E Gustafsson
GB2023204B (en) * 1978-04-07 1982-09-15 Hucker N L Flight of steps with treads held level by parallelogram linkage sledge trolly shelves

Also Published As

Publication number Publication date
NO852401L (en) 1985-06-14
EP0160022B1 (en) 1988-12-21
SE8305670D0 (en) 1983-10-14
EP0160022A1 (en) 1985-11-06
AU3503084A (en) 1985-05-07
DE3475723D1 (en) 1989-01-26
WO1985001769A1 (en) 1985-04-25

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Legal Events

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NAV Patent application has lapsed

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Effective date: 19870501