EP3106584A1 - Étape améliorée pour grille négociable - Google Patents

Étape améliorée pour grille négociable Download PDF

Info

Publication number: EP3106584A1
Authority: EP; European Patent Office
Prior art keywords: grating; stair tread; bars; bands; end plates
Prior art date: 2015-06-19
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

EP16174241.6A

Other languages

German (de)

English (en)

Other versions

EP3106584B1 (fr

Inventor

Sandro Leonardi

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.)

Italiana Keller Grigiati Soc Coop A Rl

Original Assignee

Italiana Keller Grigiati Soc Coop A Rl

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.)

2015-06-19

Filing date

2016-06-13

Publication date

2016-12-21

2016-06-13 Application filed by Italiana Keller Grigiati Soc Coop A Rl filed Critical Italiana Keller Grigiati Soc Coop A Rl

2016-12-21 Publication of EP3106584A1 publication Critical patent/EP3106584A1/fr

2022-04-20 Application granted granted Critical

2022-04-20 Publication of EP3106584B1 publication Critical patent/EP3106584B1/fr

Status Active legal-status Critical Current

2036-06-13 Anticipated expiration legal-status Critical

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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
- E04F11/104—Treads
- E04F11/112—Treads of metal or with an upper layer of metal
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
- E04C2/42—Gratings; Grid-like panels
- E04C2/421—Gratings; Grid-like panels made of bar-like elements, e.g. bars discontinuous in one direction
- E04C2/422—Gratings; Grid-like panels made of bar-like elements, e.g. bars discontinuous in one direction with continuous bars connecting at crossing points of the grid pattern
- E04C2/423—Gratings; Grid-like panels made of bar-like elements, e.g. bars discontinuous in one direction with continuous bars connecting at crossing points of the grid pattern with notches
- 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
- E04F11/104—Treads
- E04F2011/1046—Miscellaneous features of treads not otherwise provided for

Definitions

the present invention relates to the sector of metal staircases provided with treadable-grating surfaces, permeable to air and light.
the weight of grating surfaces to be laid in situ, including steps, is one of the main aspects that involve great resources both from the commercial standpoint (for quantifying the costs when drawing up the bid) and from the technical standpoint (when drawing up the detailed design).
anti-vertigo function which constitutes an important element for marketability of the product.
a first purpose of the present invention is to reduce the weight of each step, at the same time enabling wide operating spans.
a second purpose of the invention is to guarantee an anti-vertigo function that would not otherwise be possible with grating steps of a conventional type.
the inventive idea underlying the present invention basically consists in providing a functional and structural co-operation between a step of a standard type and reinforcement elements of various types that can be inserted underneath the treading surface of the step itself.
the steps of a conventional type that are shown in the (non-limiting) example of embodiment referred to in the present description have a mesh with bars having a cross section smaller than the one specified in the load tables: in fact, according to the present invention, the required strength is obtained thanks to insertion of elements underneath the step to achieve the desired load-bearing capacity, at the same time providing a product having a lower weight as compared to products so far known.
the standard step ( Figure 1A ) is constituted by a grating that may be of various types (e.g., 15-76/30-3) and is basically made up of:
the step shown in Figure 2 presents a considerably lower weight than steps of a traditional type that are designed to withstand the same load, and at the same time creates an anti-vertigo function by means of the underlying sectional elements.
a variant of the step forming the subject of the present invention ( Figure 4 ) has a more marked and specific anti-vertigo function, in so far as it envisages the use, once again on the underside of the grating of the step itself, of an obscuring panel with inclined bars 2'.
the inclined bars 2' have an inclination and are set at a distance from one another such as to prevent the user from seeing through the grating of the steps, eliminating the possibility of the user realizing the height reached when he is looking where he puts his feet.
the distance of the inclined bars 2' from the grating is a function of the necessary load-bearing capacity, and the inclined bars 2' are rendered fixed with respect to the end plates 5 (adequately enlarged) and structurally participating by means of one or more bands 3 made of sheet metal arranged orthogonal thereto and to the treading surface.
one of these bands 3 is shown with a perimeter identified by a dashed line.
said bands 3 be provided with appropriate shaped notches or slots 6 designed to mate with the boundaries of the cross section of the sectional elements 2 described previously ( Figures 3 and 5 ).
a further peculiar characteristic of the invention lies in the fact that said bands 3 are fixed to the end plates 5 at their ends, whereas they are fixed to the sectional elements 2, 2' at the edges of the shaped slots or notches 6.

Landscapes

Engineering & Computer Science (AREA)
Architecture (AREA)
Civil Engineering (AREA)
Structural Engineering (AREA)
Sewage (AREA)
Steps, Ramps, And Handrails (AREA)

EP16174241.6A 2015-06-19 2016-06-13 Marche améliorée pour des escaliers à grille pouvant être foulée Active EP3106584B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
ITUB20151524		2015-06-19

Publications (2)

Publication Number	Publication Date
EP3106584A1 true EP3106584A1 (fr)	2016-12-21
EP3106584B1 EP3106584B1 (fr)	2022-04-20

Family

ID=54199964

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP16174241.6A Active EP3106584B1 (fr)	2015-06-19	2016-06-13	Marche améliorée pour des escaliers à grille pouvant être foulée

Country Status (1)

Country	Link
EP (1)	EP3106584B1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1978791U (de) *	1967-10-07	1968-02-15	Lichtgitter Gmbh	Gitterrost.
DE2732593A1 (de) *	1977-07-19	1979-02-01	Baecker Josef Fa	Selbsttragendes begehbares gitterrostelement fuer zwischenboeden
DE10033530A1 (de) *	2000-07-11	2002-01-31	Heifa Kamin Und Korrosionsschu	Steckbausystem für ein blickdichtes Tragwerk
ES2317740A1 (es) *	2005-06-15	2009-04-16	Orsogril S.P.A.	Rejilla con apantallamiento visual, en particular, para superficies transitables en posicion elevada.
EP2698483A1 (fr) *	2012-08-13	2014-02-19	Italiana Keller Grigiati Soc. Coop. a R.L.	Élément sectionnel léger de force élevée amélioré, en particulier pour des réseaux sur laquelle on peut marcher

2016
- 2016-06-13 EP EP16174241.6A patent/EP3106584B1/fr active Active

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1978791U (de) *	1967-10-07	1968-02-15	Lichtgitter Gmbh	Gitterrost.
DE2732593A1 (de) *	1977-07-19	1979-02-01	Baecker Josef Fa	Selbsttragendes begehbares gitterrostelement fuer zwischenboeden
DE10033530A1 (de) *	2000-07-11	2002-01-31	Heifa Kamin Und Korrosionsschu	Steckbausystem für ein blickdichtes Tragwerk
ES2317740A1 (es) *	2005-06-15	2009-04-16	Orsogril S.P.A.	Rejilla con apantallamiento visual, en particular, para superficies transitables en posicion elevada.
EP2698483A1 (fr) *	2012-08-13	2014-02-19	Italiana Keller Grigiati Soc. Coop. a R.L.	Élément sectionnel léger de force élevée amélioré, en particulier pour des réseaux sur laquelle on peut marcher

Also Published As

Publication number	Publication date
EP3106584B1 (fr)	2022-04-20

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