This application claims benefit of Italian patent application serial number TO2007A000780, filed Nov. 5, 2007, which is herein incorporated by reference.
1. Field of the Invention
The present invention relates to an anti-effraction safety system for door and window frames.
The invention has been developed in particular with a view to its application to door and window frames formed by a fixed frame and a mobile frame and constituted by sectional elements made of light alloy, typically aluminium or its alloys. In this type of door and window frames, the sectional elements forming the mobile frame are provided with at least one longitudinal groove with undercut cross section, installed within which are the accessories that enable control of opening and closing of the door or window frame according to the position of a control handle. Said accessories comprise one or more closing elements, which co-operate with complementary closing elements fixed to the fixed frame.
2. Description of the Related Art
An example of door and window frames of this type is described in the European patent application No. 07108493 filed in the name of the present applicant.
Attempts at effraction in regard to door and window frames of this type are usually performed by trying to deform inwards the upright of the mobile frame opposite to the hinges. In order to carry out an attempt at effraction of this type, an effraction tool is forced into the space between the sectional element of the mobile frame and the corresponding sectional element of the fixed frame. Said tool is then rotated so as to deform the sectional element of the mobile frame inwards.
The object of the present invention is to provide a safety system that will counteract effectively any attempts at breaking in of this type and that at the same time will enable simple and fast installation thereof.
According to the present invention, said object is achieved by an anti-effraction safety system having the characteristics forming the subject of claim 1.
The characteristics and advantages of the present invention will emerge clearly in the course of the detailed description which follows, provided purely by way of non-limiting example, with reference to the attached drawings in which:
With reference to
The uprights and the cross members 16, 18, 20, 22 of the fixed frame 12 and of the mobile frame 14 are constituted by metal sectional elements, typically made of aluminium or its alloys.
With reference to
The anti-effraction system 28 comprises a closing element 34, which is fixed on the transmission rod 30 in the way that will be described in what follows, and a detent 36 complementary with respect to the closing element 34 and fixed to the corresponding upright 16 or cross member 18 of the fixed frame 12.
With reference, in particular, to
With reference to
The transmission rod 30 is moreover provided with two opposed through openings 54, 56, both open on the respective longitudinal edges of the rod 30. The openings 54, 56 are set on opposite sides with respect to the longitudinal plane surface 48. The transmission rod 30 is inserted into the groove 32 of the sectional element 20 in the direction indicated by the arrow 58 in
With reference to FIGS. 2 and 6-13, the closing element 34 is formed by two separate and complementary parts 60, 62, fixed to one another in the way that will be described in what follows. The two parts 60, 62 are formed so as to be inserted separately into the groove 32 when the transmission rod 30 has already been inserted into the groove 32. Each of the two parts 60, 62 is inserted through a respective through opening 54, 56 and engages the respective undercut portion 40 of the groove 32. The length of the two parts 60, 62 of the closing element 34 is substantially the same as the length of the through openings 54, 56 of the transmission rod 30. Each of the two parts 60, 62 of the closing element 34 is constituted by a monolithic piece of metal plate, for example steel, either bent or stamped. The first part 60 comprises a tenon 64, a fixing portion 66, and an intermediate connection portion 68. The fixing portion 66 is provided with a threaded hole 70. The second part 62 also comprises a tenon 72, a fixing portion 74, and an intermediate portion 76. The second part 62 further comprises an edge 78, which is bent at 900 with respect to the fixing portion 74 and forms a portion of engagement with a corresponding engagement portion 80 of the detent 36 (
Installation of the closing element 34 is performed according to the sequence illustrated in
Then the second part 62 is mounted, as illustrated in
With reference to
The screw 90 is screwed into the hole 70 of the first part 60.
As may be noted in particular in
With reference to
Each door or window frame can be provided with a plurality of anti-effraction closing systems according to the present invention distributed along the openable upright 20 and possibly along the cross members 22. Installation of the closing system according to the invention is particularly simple given that the closing element 34 is mounted in the groove 32 in a front direction. It is hence not necessary to take down the accessories already installed on the door or window frame. This characteristic enables installation of the anti-effraction safety system also with the door or window frame already mounted in place, provided that the transmission rod 30 is equipped with the openings 54, 56 as described previously.
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Number | Date | Country | Kind |
---|---|---|---|
TO2007A0780 | Nov 2007 | IT | national |
Number | Name | Date | Kind |
---|---|---|---|
2898991 | Kelly et al. | Aug 1959 | A |
4379576 | Blough et al. | Apr 1983 | A |
4530531 | Mantini | Jul 1985 | A |
4635396 | Ranz et al. | Jan 1987 | A |
5314218 | Nadherny | May 1994 | A |
5454610 | Taylor et al. | Oct 1995 | A |
5664814 | Lin | Sep 1997 | A |
6050621 | Martinez et al. | Apr 2000 | A |
6073978 | Sherman | Jun 2000 | A |
6612625 | Barber et al. | Sep 2003 | B1 |
6712404 | Davies et al. | Mar 2004 | B2 |
7216902 | Marra et al. | May 2007 | B2 |
7219469 | DiFrancesco | May 2007 | B2 |
7353637 | Harger et al. | Apr 2008 | B2 |
20040144033 | Annes | Jul 2004 | A1 |
20050046201 | Patire et al. | Mar 2005 | A1 |
20080060274 | Vooght | Mar 2008 | A1 |
Number | Date | Country |
---|---|---|
673134 | Feb 1990 | CH |
20 2005 013 427 | Nov 2005 | DE |
1 867 821 | Dec 2007 | EP |
1 867 824 | Dec 2007 | EP |
Number | Date | Country | |
---|---|---|---|
20090113825 A1 | May 2009 | US |