FR2137418A2 - Spiral staircase - with a polyurethane spacer ring compensating for thickness shrinkage of the wooden tread - Google Patents

Spiral staircase - with a polyurethane spacer ring compensating for thickness shrinkage of the wooden tread

Info

Publication number
FR2137418A2
FR2137418A2 FR7138597A FR7138597A FR2137418A2 FR 2137418 A2 FR2137418 A2 FR 2137418A2 FR 7138597 A FR7138597 A FR 7138597A FR 7138597 A FR7138597 A FR 7138597A FR 2137418 A2 FR2137418 A2 FR 2137418A2
Authority
FR
France
Prior art keywords
spacer ring
spiral staircase
thickness shrinkage
tread
polyurethane
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
FR7138597A
Other languages
French (fr)
Other versions
FR2137418B2 (en
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 FR2137418A2 publication Critical patent/FR2137418A2/en
Application granted granted Critical
Publication of FR2137418B2 publication Critical patent/FR2137418B2/fr
Granted legal-status Critical Current

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
    • E04F11/022—Stairways; Layouts thereof characterised by the supporting structure
    • E04F11/032—Spiral stairways supported by a central column

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Steps, Ramps, And Handrails (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Laminated Bodies (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Tires In General (AREA)
  • Knitting Of Fabric (AREA)

Abstract

The staircase has fitted supporting sleeves on the spindle side and the outer edge between the treads and with a bracing line in the middle of each sleeve clamping the tread and sleeve together and with a springy spacer on at least one end of each bracing line according to the parent patent in which the spacer is a moulded plastic part with a low modulus of elasticity. Pref. the plastic is an elastomer esp. polyurethane.
FR7138597A 1971-05-13 1971-10-27 Spiral staircase - with a polyurethane spacer ring compensating for thickness shrinkage of the wooden tread Granted FR2137418A2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2447071A IT975532B (en) 1971-05-13 1971-05-13 WOODEN STEPS WITH METALLIC STRUCTURE WITH OR WITHOUT WOOD COVERING

Publications (2)

Publication Number Publication Date
FR2137418A2 true FR2137418A2 (en) 1972-12-29
FR2137418B2 FR2137418B2 (en) 1973-05-25

Family

ID=11213649

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7138597A Granted FR2137418A2 (en) 1971-05-13 1971-10-27 Spiral staircase - with a polyurethane spacer ring compensating for thickness shrinkage of the wooden tread

Country Status (7)

Country Link
AT (1) AT314796B (en)
BE (1) BE775756R (en)
CA (1) CA962028A (en)
DE (1) DE2155603C3 (en)
ES (1) ES396470A2 (en)
FR (1) FR2137418A2 (en)
IT (1) IT975532B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8005300U1 (en) * 1980-02-28 1980-06-04 Hamm, Wilfried, 4330 Muelheim STEP FOR SPIRAL STAIRS

Also Published As

Publication number Publication date
DE2155603C3 (en) 1974-01-10
ES396470A2 (en) 1974-05-01
DE2155603B2 (en) 1973-06-20
FR2137418B2 (en) 1973-05-25
BE775756R (en) 1972-03-16
CA962028A (en) 1975-02-04
IT975532B (en) 1974-08-10
DE2155603A1 (en) 1972-11-23
AT314796B (en) 1974-04-25

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