FR2434016A1 - Mould for making straight flight concrete stairs - has adjustable treads and risers formed by slidably bolted L=sections fixed to nuts on stepped screw - Google Patents

Mould for making straight flight concrete stairs - has adjustable treads and risers formed by slidably bolted L=sections fixed to nuts on stepped screw

Info

Publication number
FR2434016A1
FR2434016A1 FR7824851A FR7824851A FR2434016A1 FR 2434016 A1 FR2434016 A1 FR 2434016A1 FR 7824851 A FR7824851 A FR 7824851A FR 7824851 A FR7824851 A FR 7824851A FR 2434016 A1 FR2434016 A1 FR 2434016A1
Authority
FR
France
Prior art keywords
nuts
tread
stepped screw
mould
angle iron
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
FR7824851A
Other languages
French (fr)
Other versions
FR2434016B3 (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.)
MONFRAY JEAN
Original Assignee
MONFRAY JEAN
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 MONFRAY JEAN filed Critical MONFRAY JEAN
Priority to FR7824851A priority Critical patent/FR2434016A1/en
Publication of FR2434016A1 publication Critical patent/FR2434016A1/en
Application granted granted Critical
Publication of FR2434016B3 publication Critical patent/FR2434016B3/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/22—Moulds for making units for prefabricated buildings, i.e. units each comprising an important section of at least two limiting planes of a room or space, e.g. cells; Moulds for making prefabricated stair units
    • B28B7/225—Moulds for making units for prefabricated buildings, i.e. units each comprising an important section of at least two limiting planes of a room or space, e.g. cells; Moulds for making prefabricated stair units for making stairs or stair units comprising more than one step

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Steps, Ramps, And Handrails (AREA)
  • Moulds, Cores, Or Mandrels (AREA)

Abstract

The mould is used in the mfr. of straight lengths of reinforced concrete stairway, providing for rapid adjustment of the dimensions of treads and risers. It uses slidably interconnected tread and riser formers which are attached in pairs to a stepped screw. A stiffened angle iron (3, 4) forms each tread and the succeeding riser, fixed to a secondary angle iron (8) forms a tread overhang whilst fixing to the succeeding tread plate. The connections are made by nuts to studs (14) or bolts (12) which traverse slots (9, 10) in the secondary angle iron. The tread connection also secures a channel section with a laminar tongue (6) at each end. Opposed tongues are linked and pinned (7) to nuts (17) mounted on fixed but rotatable stepped screw (20) operated by a hand wheel.
FR7824851A 1978-08-22 1978-08-22 Mould for making straight flight concrete stairs - has adjustable treads and risers formed by slidably bolted L=sections fixed to nuts on stepped screw Granted FR2434016A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7824851A FR2434016A1 (en) 1978-08-22 1978-08-22 Mould for making straight flight concrete stairs - has adjustable treads and risers formed by slidably bolted L=sections fixed to nuts on stepped screw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7824851A FR2434016A1 (en) 1978-08-22 1978-08-22 Mould for making straight flight concrete stairs - has adjustable treads and risers formed by slidably bolted L=sections fixed to nuts on stepped screw

Publications (2)

Publication Number Publication Date
FR2434016A1 true FR2434016A1 (en) 1980-03-21
FR2434016B3 FR2434016B3 (en) 1981-05-08

Family

ID=9212141

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7824851A Granted FR2434016A1 (en) 1978-08-22 1978-08-22 Mould for making straight flight concrete stairs - has adjustable treads and risers formed by slidably bolted L=sections fixed to nuts on stepped screw

Country Status (1)

Country Link
FR (1) FR2434016A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2546440A1 (en) * 1983-05-26 1984-11-30 Ricard Hubert Timber formwork for building straight flights of stairs made of concrete
FR2660234A1 (en) * 1990-03-28 1991-10-04 Monfray Jean Yves Adjustable mould for prefabricating staircases
WO1996014483A1 (en) * 1994-11-07 1996-05-17 Neyerlin, Wallace, F. Adjustable sheet metal moulds for steel and precast concrete stairs
WO1997031763A1 (en) * 1996-02-27 1997-09-04 Tarmac Heavy Building Materials Uk Limited Apparatus and method for moulding a staircase
WO2002077394A1 (en) * 2001-03-28 2002-10-03 Bernard Choquet Mechanism for simultaneously adjusting the step support angles of a straight staircase
US8262055B2 (en) * 2006-09-12 2012-09-11 Any Step Technology Limited Stair forming apparatus and related methods
WO2014029925A1 (en) * 2012-08-23 2014-02-27 Bernard Choquet Mechanism for the simultaneous adjustment of gaps and/or the simultaneous adjustment of angles, for the production of a multi-level or staircase structure
EP2808143A1 (en) * 2013-05-13 2014-12-03 Franz Oberndorfer GmbH & Co KG Formwork for the construction of a staircase
CN112192724A (en) * 2020-09-28 2021-01-08 威海玉全新型建筑材料股份有限公司 Mold for prefabricated staircase and processing technology of prefabricated staircase
US20210331347A1 (en) * 2020-04-25 2021-10-28 Tony Glentz Assembly and method for constructing concrete stairways and steps

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2546440A1 (en) * 1983-05-26 1984-11-30 Ricard Hubert Timber formwork for building straight flights of stairs made of concrete
FR2660234A1 (en) * 1990-03-28 1991-10-04 Monfray Jean Yves Adjustable mould for prefabricating staircases
WO1996014483A1 (en) * 1994-11-07 1996-05-17 Neyerlin, Wallace, F. Adjustable sheet metal moulds for steel and precast concrete stairs
WO1997031763A1 (en) * 1996-02-27 1997-09-04 Tarmac Heavy Building Materials Uk Limited Apparatus and method for moulding a staircase
GB2314525A (en) * 1996-02-27 1998-01-07 Tarmac Uk Ltd Apparatus and method for moulding a staircase
GB2314525B (en) * 1996-02-27 1999-07-21 Tarmac Uk Ltd Apparatus and method for moulding a staircase
WO2002077394A1 (en) * 2001-03-28 2002-10-03 Bernard Choquet Mechanism for simultaneously adjusting the step support angles of a straight staircase
FR2822867A1 (en) * 2001-03-28 2002-10-04 Bernard Choquet SIMULTANEOUS ADJUSTMENT MECHANISM OF ANGLES OF THE MARKING SUPPORTS
US8262055B2 (en) * 2006-09-12 2012-09-11 Any Step Technology Limited Stair forming apparatus and related methods
WO2014029925A1 (en) * 2012-08-23 2014-02-27 Bernard Choquet Mechanism for the simultaneous adjustment of gaps and/or the simultaneous adjustment of angles, for the production of a multi-level or staircase structure
FR2994701A1 (en) * 2012-08-23 2014-02-28 Bernard Eugene Marie Choquet INTERVAL AND / OR ANGLE ADJUSTING MECHANISM FOR REALIZING STAIR OR STACK STRUCTURE
EP2808143A1 (en) * 2013-05-13 2014-12-03 Franz Oberndorfer GmbH & Co KG Formwork for the construction of a staircase
US20210331347A1 (en) * 2020-04-25 2021-10-28 Tony Glentz Assembly and method for constructing concrete stairways and steps
CN112192724A (en) * 2020-09-28 2021-01-08 威海玉全新型建筑材料股份有限公司 Mold for prefabricated staircase and processing technology of prefabricated staircase

Also Published As

Publication number Publication date
FR2434016B3 (en) 1981-05-08

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Legal Events

Date Code Title Description
TP Transmission of property