WO2009000452A4

WO2009000452A4 - Edge shuttering for concrete ceilings

Info

Publication number: WO2009000452A4
Application number: PCT/EP2008/004900
Authority: WO
Inventors: Stefano Boggian; Graziano Mion
Original assignee: Stefano Boggian; Graziano Mion
Priority date: 2007-06-22
Filing date: 2008-06-18
Publication date: 2009-04-09
Also published as: WO2009000452A2; ITVI20070181A1; WO2009000452A3; EP2158367A2

Abstract

Herein described is a bracket for framing boards, to be used in particular, for shear connection on casting frames (C), which are raised or overhanging, such as terraces without a railing, where a block is required to be made. Such bracket is characterised in that it is made up of two mutually separated elements and that is a structure (2), shaped to form a right-angled triangle, on which the framing board (T) lies and a base (3), which lies on the casting frame (C) to support the entire bracket (1) and which is left immersed in the block casting, the two abovementioned elements (2, 3) being mutually connected by means of a bar (4).

Claims

8AMENDED CLAIMS received by the International Bureau on 29 January 2009 (29.01.2009)CLAIMS

1. BRACKET FOR FRAMING BOARDS, to be used in particular for sheer connection on casting frames (C), which are raised or overhanging, such as terraces without a railing, where it is required to made a block (M), said bracket being made up of two mutually separated elements, that is by a structure (2), shaped to form a right- angled triangle, on which the framing board (T) lies and a base (3), which is placed on the casting frame (C) for supporting the entire bracket (1) and which is left immersed in the block casting (M), the two abovementioπed elements (2, 3) being mutually connected by means of a bar (4), the bracket being characterised in that the bar (4) ends up being fitted from the front end, into a sleeve (18) which, together with the plate (19), forms the base (3).

2. BRACKET FOR FRAMING BOARDS, according to claim 1, characterised in that the articulated structure (2) is made up of two doors (5, 6), mutually hinged onto the pin (7), said doors, during the operation step, being arranged at a right angle, with the door (5) being arranged horizontally and being fitted onto the bar (4).

3. BRACKET FOR FRAMING BOARDS, according to claim 2, characterised in that the two doors (5, 6) are mutually hinged onto a common pin (7).

4. BRACKET FOR FRAMING BOARDS, according to claim 3, characterised in that the open position of the two doors (5, 6) is provided by a thrust arm (8), hinged onto the pin (9), applied onto the vertical door (6) and which ends up in abutment, at the lower part, against a stop, for example formed by a toothed bar (10) integrally joined with the with the door (5).

5. BRACKET FOR FRAMING BOARDS, according to Claim 4, characterised in that, by varying the coupling position of the arm (8) on the stop (10), it is possible to vary the angular opening between the two doors in such a manner that the framing board (T) is always perfectly vertical, even in the presence of a casting frame (C) or in the presence of another support surface tilted with respect to horizontal line.

6. BRACKET FOR FRAMING BOARDS, according one or more of the preceding claims, characterised in that the vertical door (6) is made up of a sheet (11), provided with eyelets (12, 13), for accommodating the pins (7, 9), applied on which is a plate (14), which can be adjusted height-wise in such a manner to be suited to the various heights of the table (T) being used.

7. BRACKET FOR FRAMING BOARDS, according to claim 6, characterised in that the plate (14) is engaged with the threaded pins (15) along the slits (16) provided on the sheet (11) and it is blocked, at the desired position, by means of nuts (17).

8. BRACKET FOR FRAMING BOARDS, according to one or more of the preceding claims, characterised in that the bar (4) is fitted, from its rear side, into a slit (5.1) of the bar (5), which has a section substantially identical to the section of said bar (4), in such a manner to serve as a guide for the abovementioned bar.

9. BRACKET FOR FRAMING BOARDS, according to one or more of the preceding claims, characterised in that the plate (19) is made up of a perforated sheet.

10. BRACKET FOR FRAMING BOARDS, according to one or more of the preceding claims, characterised in that present in the front portion of the bar (4) are a notch (20), projecting on the upper part and arranged at the end of the bar and a peg (21), projecting at the lower part and arranged further inwards, said two projecting elements serving to block the bar during operation and thus supporting the cantilevered structure (29) on the casting frame (C).

11. BRACKET FOR FRAMING BOARDS, according to claims 1 and 10, characterised in that the sleeve (18) has a slit (18.1) with a section slightly bigger with respect to the overall dimension required by the bar (4), provided with the two projections 10

(20, 21).

12. BRACKET FOR FRAMING BOARDS, according to claim 11, characterised in that, during the operation step of the bracket (1), the lower peg (21) penetrates into a corresponding hole (18.2) made on the base of the slit (18.1) of the abovementioned sleeve (18), while the notch (20) ends up in abutment on upper part of said slit, thus, in practice, the bar (4) is positioned slightly tilted, being held under the downwards thrust action exerted by the framing boards and the block (M) being made.

13. BRACKET FOR FRAMING BOARDS, according to one or more of the preceding claims, characterised in that, at its rear end part, the bar (4) is also provided with a projecting button (22), which prevents the door (5) from coming out.

14. BRACKET FOR FRAMING BOARDS, according to one or more Of the preceding claims, characterised in that the position of the articulated structure (2), defined depending on the thickness of the board (T), by sliding it on the bar (4), is blocked by means of a threaded knob (23) which presses against the abovementioned bar.

15. METHOD FOR FRAMING BOARDS, which utilizes the bracket according to one or more of the preceding claims, characterized in that upon casting the block (M), the base (3) is left completely immersed into the casting material, while the bar (4) which, together with the articulated structure (2), ends up forming a portion (1.1) of the entire bracket (1), which can be reused, is removed.