Patent EP0374064A1 successfully refreshed from Google Patents.
EP0374064A1
Expired / Lapsed
EP
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Insulating formwork for concrete wall
Assignee: Individual
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Filing: 1989-12-15
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Granted: —
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Expires: 2009-12-15
Abstract
Abstract Disclosed is an insulating formwork for casting a concrete wall, the formwork having a pair of sidewalls each of which is made-up of a plurality of coplanar edge-abutting modular panels (1) made of insulating foam material. Each panel (1) has upper and lower edges with coplanar slits provided therealong, and a pair of vertical end edges respectively provided with a tongue-and-groove (25,27) to form vertical tongue-and-groove joints with other like adjoining panels (1). A rabbet opens onto the panels inner face and onto the panel lower edge. The panels (1) are interconnected by a first group of angle-irons (35) having vertical branches fitting into the upward slits, of the panels, and horizontal branches, pierced with holes, extending toward the panel inner face. The panels (1) are also interconnected by a second group of angle-irons (35) having vertical branches fitting into the downward slits of the panels (1) and horizontal branches, also perced with holes, extending toward the panel inner face and overlapping the horizontal branches of the angle-irons (35) of the first group. The holes register together and the tie-rods (45) hold the sidewalls together. The tie-rods (45) have a central portion between the sidewalls and bent end portions extending through the panels (1).
Inventors
- 👤 Serge Meilleur
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 00:48
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/84; E04B2/86; E04B2/8652; E04B2002/8688
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
138 words
An insulating modular panel 1 made of foamed plastic material and adapted to serve as a component of a concrete-wall formwork (33,33′), said panel having flat inner and outer faces (17,19), upper and lower horizontal edges 7,11 and vertical end edges 13,15); - wherein said panel (1) is formed with: - longitudinal coplanar slits (5,9) extending lengthwise of said upper and lower edges (7,11) parallel to said inner and outer faces (17,19); - a first rabbet (21) opening onto said inner face(17) and onto said lower edge(11), and - a tongue (25) along one of said vertical end edges (13) and a groove (27) along the other vertical end edge (15); said tongue (25) and groove (27) being sized to cooperate, respectively, with a groove and a tongue of like adjoining coplanar panels to form tongue-and-groove joints therewith.
Claim 2
Dependent Claim
138 words
An insulating modular panel 1 made of foamed plastic material and adapted to serve as a component of a concrete-wall formwork (33,33′), said panel having flat inner and outer faces (17,19), upper and lower horizontal edges 7,11 and vertical end edges 13,15); - wherein said panel (1) is formed with: - longitudinal coplanar slits (5,9) extending lengthwise of said upper and lower edges (7,11) parallel to said inner and outer faces (17,19); - a first rabbet (21) opening onto said inner face(17) and onto said lower edge(11), and - a tongue (25) along one of said vertical end edges (13) and a groove (27) along the other vertical end edge (15); said tongue (25) and groove (27) being sized to cooperate, respectively, with a groove and a tongue of like adjoining coplanar panels to form tongue-and-groove joints therewith.
Claim 3
Dependent Claim
81 words
A modular panel as claimed in claim 1, formed with a second rabbet (29) opening onto one of said horizontal edges (7,11) and onto said outer face(19), and further comprising: - a coplanar ledge (31) projecting from the other of said horizontal edges (7,11) in alignment with said second rabbet (29);said ledge (31) and said second rabbet(29) being sized to cooperate respectively with a second rabbet and with a ledge of like adjoining coplanar panels to form insulating lap joints therewith.
Claim 4
Dependent Claim
27 words
A modular panel as claimed in claim 2, wherein said second rabbet (29) opens into said upper edge(7) and said ledge (31) projects from said lower edge(11).
Claim 5
Dependent Claim
30 words
A modular slab as claimed in claim 2, wherein said slits (5,9) said first and said second rabbets 21,29 and said ledge (31) extend uninterruptedly between said end edges (13,15).
Claim 6
Dependent Claim
20 words
A modular slab as claimed in any of claims 1 to 4, wherein said foam plastic material is expanded polystyrene.
Claim 7
Dependent Claim
223 words
A concrete-wall formwork(33) comprising: - a pair of formwork sidewalls each formed of a plurality of stacked horizontal rows of coplanar panels(1) as claimed in claim 2; said panels abutting one another along said horizontal and vertical edges(7,11); - wherein ledges(31) and second rabbets(29) of adjoining panels (1) operatively cooperate to form horizontal lap joints; - wherein tongues (25) and grooves (27) of adjoining panels (1) operatively cooperate to form vertical tongue-and-groove joints spaced horizontally along said formwork sidewalls; -wherein longitudinal slits (5,9) of adjoining panels comprise upward slits in coplanar alignment with downward slits; - a first group of angle-irons (35) having vertical branches (37) fitting into said upward slits (9), and horizontal branches (39) with holes (41,43) therethrough, said horizontal branches (39) extending toward said panels inner faces(17); - a second group of angle-irons (35) having vertical branches (37) fitting into said downward slits (5), and horizontal branches (39) with holes (41,43) therethrough, said horizontal branches (39) extending toward said panels inner faces (17); - wherein said horizontal branches (37) overlap one another with said holes in register, and - tie-rods (45) having a central portion (47) located between said sidewalls and bent end portions (49) extending through said registering holes (41,43) and extending into said panel upper edges (7), elbows (51) between said portions fitting into said first rabbets (21).
Claim 8
Dependent Claim
25 words
A formwork as claimed in claim 6, wherein at least some of said angle-irons(25) extend beyond said tongue-and-groove joints thereby horizontally interlocking adjacent panels (1).
Claim 9
Dependent Claim
26 words
A formwork as claimed in claim 7, wherein said second rabbets (29) open into said upper edges (7) and said ledges(31) project from said lower edges(11).
Claim 10
Dependent Claim
29 words
A formwork as claimed in claim 8, wherein said slits (5,9), said first and said second rabbets (21,29) and said ledges (31) extend uninterruptedly between said end edges (13,15).
Claim 11
Dependent Claim
41 words
A formwork as claimed in any of claims 6 to 9, wherein said central portions (47) of said tie-rods (45) form nicks (55); said formwork further including horizontal reinforcing bars (57) supported by said tie rods (45) in said nicks (55).
Claim 12
Dependent Claim
19 words
A formwork as claimed in any of claims 6 to 9, wherein said foam plastic material is expanded polystyrene.
Claim 13
Dependent Claim
21 words
A formwork as claimed in any of claims 6 to 9, further comprising vertical reinforcing bars (59) between said tie-rods (45).
References Cited (Backward Citations)
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